WO2024233294A1

WO2024233294A1 - Medical devices and filter assemblies therefor

Info

Publication number: WO2024233294A1
Application number: PCT/US2024/027589
Authority: WO
Inventors: Kyrill SHVETSOV; Michael Miller; Mark Szymanski
Original assignee: Conmed Corp
Current assignee: Conmed Corp
Priority date: 2023-05-05
Filing date: 2024-05-03
Publication date: 2024-11-14
Anticipated expiration: 2025-11-05

Abstract

Filter elements and assemblies for surgical smoke evacuation devices include filter media impregnated with potassium permanganate, and/or activated carbon. Media impregnated with potassium permanganate can be a carbon zeolite material impregnated with potassium permanganate, and/or an activated alumina material impregnated with potassium permanganate. Filter assembly housings can be adapted to be in fluid communication with one or more pressure sensors upstream and/or downstream from a filter element housed therein. A sensor port and/or a backing plate of the filter housing can include one or more magnets to interact with respective magnets of a related smoke evacuation device.

Description

MEDICAL DEVICES AND FILTER ASSEMBLIES THEREFOR

CROSS-REFERENCE TO RELATED APPLICATIONS

This Application is an International Patent Application, which claims priority to and the benefit of U.S. Provisional Application No. 63/464,514, filed 5 May 2023, the entire contents of which are incorporated by reference herein in their entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The subject invention is directed to filtration devices and systems for use in connection with medical procedures and, more specifically, for use in connection with a smoke evacuation devices, central vacuum systems, or the like in a hospital or other medical facility.

2. Description of Related Art

Surgical smoke and aerosol, or plume, is created in connection with surgery. For example, when laser or electrosurgical energy is delivered to a cell, heat is created. This heat vaporizes the intracellular fluid, which increases the pressure inside the cell and eventually causes the cell membrane to burst. In this example, a plume of smoke containing water vapor is released. At the same time, the heat created may char the protein and other organic matter within the cell, and may cause thermal necrosis in adjacent cells. The charring of cells may also release other contaminants, such as carbonized cell fragments and gaseous hydrocarbons. During laparoscopic or minimally invasive surgery, smoke and other particles may become trapped in an insufflated abdomen.

Filtration devices and systems for use in connection with laparoscopic or minimally invasive surgery, such as those described in U.S. Pat. No. 10,004,856, hereby incorporated by reference in its entirety, are generally designed to evacuate smoke from an abdominal cavity during a laparoscopic procedure, while maintaining internal pressure and CO2 or other gas volume. The filtration devices typically have a filter cartridge, an inflow port, an outflow port, and may contain a pressure sensing port. The devices usually have a pump contained within the main unit for conveying the surgical smoke through the filter cartridge.

The conventional techniques have been considered satisfactory for their intended purpose. However, there is an ever present need for improved filtering, ease of assembly, occlusion detection, and the like. This disclosure provides a solution. SUMMARY OF THE DISCLOSURE

The purpose and advantages of the below described illustrated embodiments will be set forth in and apparent from the description that follows. Additional advantages of the illustrated embodiments will be realized and attained by the devices, systems and methods particularly pointed out in the written description and claims hereof, as well as from the appended drawings.

A smoke evacuation device includes a chassis having an upper surface and a lower surface. The smoke evacuation device includes a docking connector operatively associated with at least one of the lower surface or the upper surface of the chassis. The docking connector can be configured and adapted to enable physical connection between the smoke evacuation device and an adjacent surgical unit having a complementary docking connector.

In an embodiment of the above, the smoke evacuation device can include a spring clip operatively associated with the at least one of the upper surface of the chassis or the lower surface of the chassis.

In a further embodiment of any of the above, the spring clip can be configured and adapted to mechanically couple to a protrusion of an adjacent surgical unit.

In a further embodiment of any of the above, the smoke evacuation device can include an electrical coupling on at least one of the upper surface of the chassis or the lower surface of the chassis.

In a further embodiment of any of the above, the electrical coupling can be configured and adapted to electrically connect the smoke evacuation device to an adjacent surgical unit.

In a further embodiment of any of the above, the spring clip can include a pair of apertures.

In a further embodiment of any of the above, each aperture can receive a respective fastener for engaging with the standoffs.

In a further embodiment of any of the above, the smoke evacuation device can include at least one protrusion extending from at least one of the upper surface of the chassis or the lower surface of the chassis.

In a further embodiment of any of the above, the at least one protrusion can be configured and adapted to mechanically couple to a respective mating portion on an adjacent surgical unit.

In a further embodiment of any of the above, the at least one protrusion can be a ball stud connector. In a further embodiment of any of the above, the smoke evacuation device can include a wire harness in electrical and/or data communication with the docking connector.

In a further embodiment of any of the above, the smoke evacuation device can include at least one chassis grounding post extending inward from the lower surface of the chassis.

In a further embodiment of any of the above, the smoke evacuation device can include at least one ground wire connected to the at least one chassis grounding post.

In accordance with another aspect, a surgical system assembly includes a first surgical device having a first chassis having an upper surface and a lower surface. The first surgical device includes a first docking connector operatively associated with at least one of the upper surface of the first chassis, or the lower surface of the first chassis. The surgical system assembly includes a second surgical device having a second chassis having an upper surface and a lower surface. The second surgical device includes a second docking connector operatively associated with at least one of the upper surface of the second chassis or the lower surface of the second chassis. The first and second docking connectors are configured and adapted to enable physical connection between the first chassis and the second chassis.

In a further embodiment of any of the above, the first surgical device can be positioned on top of the second surgical device.

In a further embodiment of any of the above, the surgical system assembly can include a wire harness in electrical communication with the second docking connector.

In a further embodiment of any of the above, the second docking connector can be in electrical communication with the first docking connector to at least one of: send at least one of power and/or data thereto, or receive at least one of power and/or data therefrom.

In a further embodiment of any of the above, the surgical system assembly can include a support structure with at least one a support surface.

In a further embodiment of any of the above, the at least one support surface can include at least one mating aperture configured and adapted to receive at least one of the first docking connector or the second docking connector.

In a further embodiment of any of the above, the second chassis can include at least one chassis grounding post extending inward from the lower surface of the second chassis

In a further embodiment of any of the above, the first docking connector of the first surgical device can include at least one spring clip. In a further embodiment of any of the above, at least one spring clip can be configured and adapted to mechanically couple to a respective mating portion of the second docking connector.

In a further embodiment of any of the above, the respective mating portion can be a ball stud connector.

In a further embodiment of any of the above, the second docking connector can include at least one spring clip, wherein the at least one spring clip can be configured and adapted to mechanically couple to a respective mating portion of the first docking connector.

In a further embodiment of any of the above, the first surgical device can be an electro-surgical device and wherein the second surgical device can be the smoke evacuation device.

In a further embodiment of any of the above, the electro-surgical device can be positioned on top of the smoke evacuation device.

In accordance with another aspect, a smoke evacuation device includes a smoke evacuation device housing including a filter basket sleeve, a filter assembly received within the filter basket sleeve. The filter assembly includes a filter housing having an inlet end and an outlet end and a sensor port flange positioned more proximate the inlet end than the outlet end, a backing plate coupled to the outlet end of the filter assembly, and a non-mechanical attachment mechanism operatively connected to at least one of the sensor port flange or the backing plate. The non-mechanical attachment mechanism can be configured and adapted to secure the filter assembly to the smoke evacuation device.

In an embodiment of the above, the non-mechanical attachment mechanism can be operatively connected to the backing plate.

In a further embodiment of any of the above, the filter basket sleeve can include a first end and a second end.

In a further embodiment of any of the above, the second end can include another non- mechanical attachment mechanism operatively connected thereto.

In a further embodiment of any of the above, the non-mechanical attachment mechanism on the backing plate can be configured and adapted to mate with the non- mechanical attachment mechanism of the filter basket sleeve to join the filter assembly and the second end of the filter basket sleeve. In a further embodiment of any of the above, the non-mechanical attachment mechanism of the backing plate and/or the second end of the filter basket sleeve can each include at least one magnet.

In a further embodiment of any of the above, the at least one magnet operatively connected to the backing plate can include four magnets.

In a further embodiment of any of the above, the at least one magnet operatively connected to the second end of the filter basket sleeve can include four magnets.

In a further embodiment of any of the above, the non-mechanical attachment mechanism can be operatively connected to the sensor port flange.

In a further embodiment of any of the above, the filter basket sleeve can include a first end and a second end. The first end of the filter basket sleeve can include a sensor port connector including another non-mechanical attachment mechanism connected thereto.

In a further embodiment of any of the above, the at non-mechanical attachment mechanism of the sensor port connector can be configured and adapted to mate with the non- mechanical attachment mechanism operatively connected to the sensor port flange to join the filter assembly and the first end of the filter basket sleeve and ensure alignment and secure fit between the sensor port flange and the sensor port connector.

In a further embodiment of any of the above, the non-mechanical attachment mechanisms can each include at least one magnet.

In a further embodiment of any of the above, the at least one magnet operatively connected to the sensor port flange can include two magnets.

In a further embodiment of any of the above, the at least one magnet of the sensor port connector can include two magnets.

In accordance with another aspect, a filter assembly for a smoke evacuation device includes a filter housing having an inlet end and an outlet end and a sensor port flange positioned more proximate the inlet end than the outlet end. The filter assembly includes a backing plate coupled to the outlet end of the filter assembly. The filter assembly includes a non-mechanical attachment mechanism operatively connected to at least one of the sensor port flange or the backing plate. The non-mechanical attachment mechanism can be configured and adapted to secure the filter assembly to a smoke evacuation device.

In an embodiment of the above, the non-mechanical attachment mechanism can be operatively connected to the backing plate. In a further embodiment of any of the above, the non-mechanical attachment mechanism can be configured and adapted to join the backing plate of the filter assembly to a smoke evacuation device.

In a further embodiment of any of the above, the non-mechanical attachment mechanism of the backing plate can be at least one magnet.

In a further embodiment of any of the above, the at least one magnet can include four magnets.

In a further embodiment of any of the above, the non-mechanical attachment mechanism on the sensor port flange can be configured and adapted to ensure a secure fit between the sensor port flange and a sensor port connector of a smoke evacuation device.

In a further embodiment of any of the above, the non-mechanical attachment mechanism on the sensor port flange can be at least one magnet. The at least one magnet can include two magnets.

In accordance with another aspect, a smoke evacuation device includes a smoke evacuation device housing including a filter basket sleeve. The smoke evacuation device includes a filter assembly received within the filter basket sleeve. The fdter assembly includes a filter housing having an inlet end and an outlet end defining a flow path therebetween. The filter assembly includes a filter positioned in the flow path between the inlet end and the outlet end. The smoke evacuation device includes a pressure sensor in fluid communication with the flow path for measuring a pressure upstream from the filter.

In an embodiment of the above, the filter assembly includes an inlet pressure port in fluid communication with the flow path upstream from the filter and with the pressure sensor for taking a series of measurements to establish a baseline pressure.

In a further embodiment of any of the above, the filter basket sleeve can include a pressure port connector coupled to the inlet pressure port of the filter assembly.

In a further embodiment of any of the above, the smoke evacuation device can include an inlet pressure conduit having a first end coupled to the pressure port connector.

In a further embodiment of any of the above, the inlet pressure conduit can include a second end coupled to the pressure sensor.

In a further embodiment of any of the above, the filter housing can include a sensor port flange positioned more proximate the inlet end than the outlet end. The filter assembly can include a non-mechanical attachment mechanism operatively connected to the sensor port flange configured and adapted to secure the filter assembly to the smoke evacuation device.

In a further embodiment of any of the above, the pressure sensor can be coupled to the filter housing on an upstream side of the filter.

In a further embodiment of any of the above, the smoke evacuation device can include a second pressure sensor in fluid communication with ambient air within the smoke evacuation device to sense ambient pressure within the smoke evacuation device.

In a further embodiment of any of the above, the smoke evacuation device can include a second pressure sensor in fluid communication a downstream side of the filter.

In accordance with another aspect, a filter assembly for a smoke evacuation device includes a housing having an inlet end and an outlet end defining a flow path therebetween. The filter assembly includes a filter positioned in the flow path between the inlet end and the outlet end. The filter assembly includes a pressure sensor in fluid communication with the flow path for measuring a pressure upstream from the filter.

In an embodiment of the above, the filter assembly can include an inlet pressure port in fluid communication with the flow path upstream from the filter and with the pressure sensor for taking a series of measurements to establish a baseline pressure.

In a further embodiment of any of the above, the filter housing includes a sensor port flange positioned more proximate the inlet end than the outlet end.

In a further embodiment of any of the above, the filter assembly can include a nonmechanical attachment mechanism operatively connected to the sensor port flange configured and adapted to secure the filter assembly to a smoke evacuation device.

In accordance with another aspect, a filter assembly for a smoke evacuation device includes a housing having an inlet end and an outlet end. The filter assembly includes at least one port associated with the inlet end of the housing for communicating with a 1.0” ISO compliant tube.

In accordance with another aspect, a filter assembly for a smoke evacuation device includes a housing having an inlet end and an outlet end. The filter assembly includes a filter element positioned within the housing between the inlet end and the outlet end thereof. The filter element includes a filter media impregnated with potassium permanganate.

In an embodiment of the above, a ratio of an activated carbon material in the filter element to the filter media impregnated with potassium permanganate in the filter element can be 4.5:1. In a further embodiment of any of the above, a ratio of activated carbon in the filter element to the filter media containing carbon zeolite material impregnated with potassium permanganate in the filter element can be 4.5: 1.

In a further embodiment of any of the above, the filter element can include a downstream filter bed and an upstream filter bed.

In a further embodiment of any of the above, the upstream filter bed can be positioned between the inlet end of the housing and the downstream filter bed.

In a further embodiment of any of the above, the upstream filter bed can include a granular activated carbon filter media.

In a further embodiment of any of the above, the downstream filter bed can include the filter media impregnated with potassium permanganate.

In a further embodiment of any of the above, the ratio of the granular activated carbon filter media in the upstream filter bed to the filter media in the downstream filter bed can be 4.5:1.

In a further embodiment of any of the above, the upstream filter bed includes 450 grams of a granular activated carbon filter media.

In a further embodiment of any of the above, the downstream filter bed includes 100 grams of the filter media impregnated with potassium permanganate.

In a further embodiment of any of the above, the housing can include an RFID tag mounted thereto.

In a further embodiment of any of the above, the filter media impregnated with potassium permanganate can be at least one of a carbon zeolite material impregnated with potassium permanganate, or an activated alumina impregnated with potassium permanganate.

In accordance with another aspect, a filter element includes at least one of an upstream filter bed and a downstream filter bed. At least one of the filter beds includes a filter media impregnated with potassium permanganate. The filter media impregnated with potassium permanganate can be configured and adapted to remove noxious odor.

In an embodiment of the above, the upstream filter bed can include a granular activated carbon filter media.

In a further embodiment of any of the above, a ratio of activated carbon in the filter element to the filter media impregnated with potassium permanganate in the filter element can be 4.5: 1. In a further embodiment of any of the above, the downstream filter bed can include the filter media impregnated with potassium permanganate.

In a further embodiment of any of the above, the upstream filter bed can include 450 grams of a granular activated carbon filter media.

In a further embodiment of any of the above, the downstream filter bed can include 100 grams of the filter media impregnated with potassium permanganate.

In a further embodiment of any of the above, the ratio of the granular activated carbon filter media in the upstream filter bed to the filter media impregnated with potassium permanganate in the downstream filter bed can be 4.5:1.

In a further embodiment of any of the above, the granular activated carbon filter media can be configured and adapted to remove noxious odor by removing 90% or greater of the volatile organic compounds (VOC), e.g., benzene, or the like.

In a further embodiment of any of the above, the carbon filter media impregnated with potassium permanganate can be at least one of a carbon zeolite material impregnated with potassium permanganate, or an activated alumina impregnated with potassium permanganate.

In accordance with another aspect, a filter assembly for a smoke evacuation device includes a housing having an inlet end and an outlet end, and a filter element positioned within the housing between the inlet end and the outlet end thereof, wherein the filter element includes a filter media impregnated with potassium permanganate.

In an embodiment of the above, the filter element can include an activated carbon filter media, wherein a weight ratio of the activated carbon filter media in the filter element to the filter media impregnated with potassium permanganate in the filter element is about 4.5: 1.

In an embodiment of any of the above the filter element can include a downstream filter bed and an upstream filter bed.

In an embodiment of any of the above, the upstream filter bed can be positioned between the inlet end of the housing and the downstream filter bed.

In an embodiment of any of the above, the upstream filter bed can include a granular activated carbon filter media.

In an embodiment of any of the above, a weight ratio of the granular activated carbon filter media in the filter element to a filter media impregnated with potassium permanganate in the filter element can be about 4.5:1. In an embodiment of any of the above, the downstream filter bed can include the filter media impregnated with potassium permanganate.

In an embodiment of any of the above, the upstream filter bed can include 450 grams of a granular activated carbon filter media.

In an embodiment of any of the above, the downstream filter bed can include 100 grams of the filter media impregnated with potassium permanganate.

In an embodiment of any of the above, the upstream filter bed can include a granular activated carbon filter media, wherein the downstream filter bed can include the filter media impregnated with potassium permanganate, wherein a weight ratio of the granular activated carbon filter media in the upstream filter bed to the filter media impregnated with potassium permanganate in the downstream filter bed can be about 4.5: 1.

In an embodiment of any of the above, the filter media impregnated with potassium permanganate can be at least one of a carbon zeolite material impregnated with potassium permanganate, or an activated alumina material impregnated with potassium permanganate.

In an embodiment of any of the above, the housing can include an RFID tag mounted thereto.

In an embodiment of any of the above the filter assembly can further include a pressure sensor in fluid communication with the flow path for measuring a pressure upstream from the filter.

In an embodiment of any of the above the filter assembly can further include an inlet pressure port in fluid communication with the flow path upstream from the filter and with the pressure sensor for taking a series of measurements to establish a baseline pressure.

In an embodiment of any of the above, the filter housing can include a sensor port flange positioned more proximate the inlet end than the outlet end, wherein the filter assembly includes a non-mechanical attachment mechanism operatively connected to the sensor port flange configured and adapted to secure the filter assembly to a smoke evacuation device.

In an embodiment of any of the above the filter assembly can further include a sensor port flange positioned more proximate the inlet end than the outlet end, a backing plate coupled to the outlet end of the filter assembly, and a first non-mechanical attachment mechanism operatively connected to at least one of the sensor port flange or the backing plate, wherein the first non-mechanical attachment mechanism is configured and adapted to secure the filter assembly to a smoke evacuation device. In an embodiment of any of the above, the first non-mechanical attachment mechanism can be operatively connected to the backing plate, wherein the first nonmechanical attachment mechanism is configured and adapted to join the backing plate of the filter assembly to a smoke evacuation device.

In an embodiment of any of the above, the first non-mechanical attachment mechanism can be operatively connected to the sensor port flange, wherein the first non- mechanical attachment mechanism on the sensor port flange is configured and adapted to ensure a secure fit between the sensor port flange and a sensor port connector of a smoke evacuation device.

In an embodiment of any of the above, the smoke evacuation device can include a smoke evacuation device housing including a filter basket sleeve, the filter basket sleeve adapted and configured to receive the filter assembly, and a pressure sensor in fluid communication with the flow path for measuring a pressure upstream from the filter.

In an embodiment of any of the above, the filter assembly can include an inlet pressure port in fluid communication with the flow path upstream from the filter and with the pressure sensor for taking a series of measurements to establish a baseline pressure.

In an embodiment of any of the above, the filter basket sleeve can include a pressure port connector adapted and configured to couple to the inlet pressure port of the filter assembly.

In an embodiment of any of the above, the smoke evacuation device can include an inlet pressure conduit having a first end coupled to the pressure port connector.

In an embodiment of any of the above, the inlet pressure conduit can include a second end coupled to the pressure sensor. In an embodiment of any of the above, the filter housing can include a sensor port flange positioned more proximate the inlet end than the outlet end, wherein the filter assembly can include a non-mechanical attachment mechanism operatively connected to the sensor port flange configured and adapted to secure the filter assembly to the smoke evacuation device.

In an embodiment of any of the above, the pressure sensor can be coupled to the filter housing on an upstream side of the filter.

In an embodiment of any of the above, the smoke evacuation device can further include a second pressure sensor in fluid communication with ambient air within the smoke evacuation device. In an embodiment of any of the above, the smoke evacuation device can further include a second pressure sensor in fluid communication with a downstream side of the filter.

In an embodiment of any of the above, a smoke evacuation device can be adapted and configured to receive a filter assembly as any of the above, the smoke evacuation device having a smoke evacuation device housing including a filter basket sleeve, and a second nonmechanical attachment mechanism provided on the smoke evacuation device, operatively connected to at least one of the sensor port flange or the backing plate, configured and adapted to secure the filter assembly to the smoke evacuation device.

In an embodiment of any of the above, the second non-mechanical attachment mechanism can be adapted and configured to engage the backing plate, wherein the filter basket sleeve includes a first end and a second end, wherein the second end includes the second non-mechanical attachment mechanism operatively connected thereto, wherein the first non-mechanical attachment mechanism on the backing plate is configured and adapted to mate with the second non-mechanical attachment mechanism of the filter basket sleeve to join the filter assembly and the second end of the filter basket sleeve.

In an embodiment of any of the above, the second non-mechanical attachment mechanism can be operatively connected to the sensor port flange, wherein the filter basket sleeve includes a first end and a second end, wherein the first end of the filter basket sleeve includes a sensor port connector including another non-mechanical attachment mechanism connected thereto, wherein the first non-mechanical attachment mechanism of the sensor port connector is configured and adapted to mate with the second non-mechanical attachment mechanism operatively connected to the sensor port flange to join the filter assembly and the first end of the filter basket sleeve and ensure alignment and secure fit between the sensor port flange and the sensor port connector.

In an embodiment of any of the above, the first non-mechanical attachment mechanism can be at least one magnet. In an embodiment of any of the above, the at least one magnet can include two magnets. In an embodiment of any of the above, the at least one magnet can include four magnets.

In an embodiment of any of the above the second non-mechanical attachment mechanism can be at least one magnet. In an embodiment of any of the above the at least one magnet can include two magnets. In an embodiment of any of the above the at least one magnet can include four magnets. In accordance with another aspect, a filter element includes at least one of an upstream filter bed and a downstream filter bed, wherein at least one of the filter beds includes a filter media impregnated with potassium permanganate, wherein the filter media impregnated with potassium permanganate is configured and adapted to remove noxious odor.

In an embodiment of any of the above, a weight ratio of the granular activated carbon filter media in the filter element to a filter media impregnated with potassium permanganate in the filter element can be about 4.5:1.

In an embodiment of any of the above, the downstream filter bed can include the filter media impregnated with potassium permanganate.

In an embodiment of any of the above, the upstream filter bed can include a granular activated carbon filter media, wherein the downstream filter bed includes the filter media impregnated with potassium permanganate, wherein a weight ratio of the granular activated carbon filter media in the upstream filter bed to the filter media impregnated with potassium permanganate in the downstream filter bed is about 4.5: 1.

In an embodiment of any of the above, the filter media impregnated with potassium permanganate can be a carbon zeolite material impregnated with potassium permanganate. In an embodiment of any of the above, the filter media impregnated with potassium permanganate can be an activated alumina material impregnated with potassium permanganate.

These and other features of the smoke evacuation device of the subject invention will become more readily apparent to those having ordinary skill in the art to which the subject invention appertains from the detailed description of the preferred embodiments taken in conjunction with the following brief description of the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

So that those skilled in the art will readily understand how to make and use the devices, systems and methods of the subject invention without undue experimentation, preferred embodiments thereof will be described in detail herein below with reference to the figures wherein:

Fig. 1 is a perspective view of an embodiment of the surgical system assembly constructed in accordance with the present disclosure, showing an electro-surgical device positioned in a stacked position on top of the smoke evacuation device;

Fig. 2 is a perspective view of the surgical system assembly of Fig. 1, showing the system being used in a laparoscopic application;

Fig. 3 is a top perspective view of the smoke evacuation device of Fig. 1 , showing the docking connectors on the top of surgical system assembly;

Fig. 4 is a bottom perspective view of the smoke evacuation device of Fig. 1 , showing the bottom of the surgical system assembly;

Fig. 5 is an exploded perspective view of a portion of the smoke evacuation device of Fig. 1, showing the filter assembly being received within the filter basket sleeve;

Fig. 6 is an exploded perspective view of the filter assembly of the smoke evacuation device of Fig. 1, showing the filter element having upstream and downstream filter beds;

Fig. 7 is a perspective view fdter media used in the smoke evacuation device of Fig. 1 , showing granular activated carbon filter media;

Fig. 8 is a perspective view filter media used in the smoke evacuation device of Fig. 1 , showing filter media containing at least one of zeolite impregnated with potassium permanganate or activated alumina impregnated with potassium permanganate;

Fig. 9 is a perspective view of the smoke evacuation device of Fig. 1, showing the backing plate of the filter assembly having a set of magnets;

Fig. 10 is an exploded perspective view of a portion of the filter assembly for use in the smoke evacuation device of Fig. 1 , showing the sensor port flange and a set of magnets operatively connected thereto;

Fig. 11 is a perspective view of a portion of the filter assembly for use in the smoke evacuation device of Fig. 1, showing a slidable port cover;

Fig. 12 is a perspective view of a portion of the filter assembly for use in the smoke evacuation device of Fig. 1, showing the inlet pressure port; Fig. 13 is an exploded perspective view of a portion of the filter assembly for use in the smoke evacuation device of Fig. 1 , showing the tube connected to the neck of the port;

Fig. 14 is an exploded perspective view of a portion of the smoke evacuation device of Fig. 1 , showing the filter basket sleeve being received in the smoke evacuation device chassis;

Fig. 15A is a rear perspective view of a portion of the smoke evacuation device of Fig. 1, showing the inlet pressure conduit;

Fig. 15B is a rear perspective view of a portion of another embodiment of the smoke evacuation device of Fig. 1, showing an outlet pressure conduit coupled to a pressure port;

Fig. 16 is a rear perspective view of a portion of the smoke evacuation device of Fig. 1 , showing the pressure port connector;

Fig. 17 A is a rear perspective view of a portion of the filter basket sleeve of the smoke evacuation device of Fig. 1, showing the rear duct coupled to the downstream end of the filter basket sleeve;

Fig. 17B is a rear perspective view of a portion of the filter basket sleeve of the smoke evacuation device of Fig. 15B, showing the embodiment of the rear duct having the outlet pressure port in fluid communication with the pressure sensor;

Fig. 18 is a schematic top plan view of a portion of the smoke evacuation device of Fig. 1 , showing the rear duct;

Fig. 19 is a rear perspective view of the smoke evacuation device of Fig. 1, showing the electro-surgical device being stacked on top of the smoke evacuation device, which is being stacked on a support surface with a mating aperture;

Fig. 20 is an exploded perspective view of a portion of the chassis of the smoke evacuation device of Fig. 1, showing the chassis grounding post and the spring clip;

Fig. 21 is an exploded perspective view of a portion of the chassis of the smoke evacuation device of Fig. 1, showing the spring clip and its respective apertures; and

Fig. 22 is an enlarged perspective view of a portion of the stack-up of Fig. 19, showing the ball stud connector engaging with an aperture of the spring clip of the electro- surgical device. DETAILED DESCRIPTION OF THE EMBODIMENTS

Referring now to the drawings wherein like reference numerals identify similar structural elements and features of the subject invention, there is illustrated in Fig. 1 a preferred embodiment of a surgical system assembly 10 constructed in accordance with the present invention having an electro-surgical device, an insufflation device, and a smoke evacuation device. Other embodiments of systems in accordance with the disclosure, or aspects thereof, are provided in Figs. 2-22, as will be described. In particular, the surgical system assembly 10 of the subject invention is designed for use in the performance of surgical procedures in a patient. For example, laparoscopic surgical procedures, which involve a plurality of gas sealed trocars for introducing laparoscopic surgical instrumentation into the abdominal cavity.

As shown in Figs. 1-4 and 19, a surgical system assembly 10 includes a first surgical device, e.g., an electro-surgical device 12. Electro-surgical device 12 includes a first chassis, e.g., an electro-surgical chassis 14, having an upper surface 16 and a lower surface 18, and a first docking connector, e.g., an electro-surgical docking connector 32, operatively associated with lower surface 18 of electro-surgical chassis 14. A surgical system assembly 10 includes a surgical device, e.g., a smoke evacuation device 100. Smoke evacuation device 100 includes a second chassis, e.g., a smoke evacuation chassis 102, having an upper surface 104 and a lower surface 106, and a second docking connector, e.g., a smoke evacuation docking connector 108, operatively associated with upper surface 104 of the smoke evacuation chassis 102 configured and adapted to enable electrical communication between smoke evacuation device 100 and the adjacent electro-surgical device 12, shown in Fig. 19. Electro-surgical device 12 includes a second docking connector 30 operatively associated with upper surface 16 of electro-surgical chassis 14. Second docking connector 30 can remain closed, e.g., similar to how a docking connector 108 is shown in Fig. 3, or can be opened to engage with another surgical device.

As shown in Figs. 19 and 22, electro-surgical device 12 is positioned on top of smoke evacuation device 100. Docking connector 32 operatively associated with lower surface 18 of electro-surgical chassis 14 is configured and adapted to enable electrical communication between electrical coupling 183 on smoke evacuation docking connector 108 of upper surface 104 of smoke evacuation chassis 102 and a corresponding electrical coupling 181 on docking connector 32 of electro-surgical chassis 14. Smoke evacuation device 100 includes a wire harness 190 in electrical communication between electrical port 123 and electrical coupling 183. With electrical coupling 183 and corresponding electrical coupling 181, it is contemplated that only one external electrical connection from assembly 10 as a whole may be needed to provide power to the various surgical units in the stack-up. Each electrical coupling 181 and 183 can each include one or more connector ports. In the embodiment of Figs. 19 and 22, four connector ports for each coupling are shown. Alternatively, electro- surgical device 12 can readily be powered via a separate power connection.

With continued reference to Figs. 19 and 22, smoke evacuation device 100 includes four protrusions, e.g., ball stud connectors 127, extending from upper surface 104 of chassis 102. Ball stud connectors 127 are configured and adapted to mechanically couple to a respective mating portion on an adjacent surgical unit, e.g., electro-surgical device 12. First docking connector 32 of electro-surgical device 12 includes four spring clips 131. Each spring clip 131 includes a pair of side apertures 133 and a central aperture 135. Spring clips 131 are similar to spring clips 180, described in more detail below. Each aperture 133 receives a respective one of a screw or other fastener 137. Fasteners 137 secure each spring clip 131 within a respective oblong recess 139 of docking connector 32. Each central aperture 135 is configured and adapted to mechanically couple to a respective mating portion of the first docking connector, e.g., the ball stud connector 127. While shown and described herein with four ball stud connectors 127 and corresponding spring clips 131, those skilled in the art will readily appreciate that any suitable number of ball stud connectors 127 and corresponding spring clips may be used.

With continued reference to Figs. 4, 19 and 22, smoke evacuation device 100 includes docking connector 111. Docking connector 111 protrudes from lower surface 106 and is configured and adapted to mate with a support structure 151 or other surgical device. Surgical system assembly 10 includes support structure 151 having at least one support shelf 157 with a support surface 153. Support surface 153 includes at least one mating aperture 155 configured and adapted to receive docking connector 111.

Those skilled in the art will readily appreciate that smoke evacuation device 100 and/or electro-surgical device 12 can be stacked with other surgical units, such as, an insufflation device, argon supply, suction irrigation, or the like, having a complementary docking connector to mate with smoke evacuation docking connector 108 or second docking connector 30 of electro-surgical device 12, for example. In accordance with one embodiment, surgical system 10, electro-surgical device 12, or other surgical unit stacked therewith, includes a wire harness 190 in electrical communication with each docking connector 32, 108, and the like, such that only one external electrical connection from assembly 10 as a whole is needed to provide power to the various surgical units in the stack-up. Wire harness 190 can be powered via a CAN bus coupled to chassis 102 at electrical port 123.

With reference now to Figs. 5-7, smoke evacuation device 100 includes a filter assembly 110 including a housing 112 having an inlet end 114 and an outlet end 116. Housing 112 includes an RFID tag 121 for enabling smoke evacuation device 100 to sense when filter assembly 110 is in place. Smoke evacuation device 100 includes a filter basket sleeve 115 defined within smoke evacuation device chassis 102 which is configured and adapted to receive filter assembly 110. Filter basket sleeve 115 includes a first end 152 and a second end 154, shown in Fig. 15A. Filter assembly 110 includes three ports 118, 120 and 122 associated with inlet end 114 of housing 112. Ports 118 and 120 are configured and adapted to couple to one or more surgical devices and/or tubing to provide smoke evacuation during a surgical procedure in order to draw smoke or vapor into filter assembly 110 for filtering. For example, as shown in Fig. ports 118 and 120 can Port 122 is generally coupled to insufflation tubing from a trocar. In general, filter assembly 110 is a detachable filter cartridge having at least one upstream filter 117. Upstream filter 117 may be multilayer, hydrophobic, odor absorbing, or moisture absorbing and may contain ULPA (Ultra-Low Particulate Air) elements or activated charcoal. A pre-filter 119 made from a porous soft sponge material is positioned upstream from upstream filter 117. Filter assembly 110 includes another filter element 141 positioned within housing 112 between inlet end 114 and outlet end 116 thereof. Filter element 141 is downstream from filter 117 and provides further odor and/or moisture absorption. A flow path, schematically shown by the directional arrow in Fig. 6, is defined between inlet end 114 and outlet end 116.

With continued reference to Figs. 5-8, filter element 141 includes a downstream filter bed 142 and an upstream filter bed 144. Upstream filter bed 144 is positioned between inlet end 114 of housing 112 and downstream filter bed 142. Upstream filter bed 144 includes a granular activated carbon filter media 145. Downstream filter bed 142 includes filter media 143. Filter media 143 contains a carbon zeolite material impregnated with potassium permanganate and/or activated alumina material impregnated with potassium permanganate. In a preferred aspect, the granular activated carbon filter media 145 is configured and adapted to remove noxious odor by removing 90% or greater of the volatile organic compounds (VOC), e.g., benzene, or the like. In some embodiments, the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is 4.5: 1. In some embodiments, the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is about 4.5:1. Filter media 143 acts to provide an additional layer of odor and/or moisture reduction. In accordance with another embodiment, the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is 9:1. In accordance with another embodiment, the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is about 9:1 .

In accordance with another embodiment, the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is between 4.5: 1 and 9:1. In accordance with another embodiment, the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is between about 4.5:1 and about 9:1. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is 4.5:1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is about 4.5:1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 5: 1 or greater, or a ratio of about 5: 1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 5.5: 1 or greater, or a ratio of about 5.5:1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 6: 1 or greater, or a ratio of about 6: 1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 6.5: 1 or greater, or a ratio of about 6.5:1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 7 : 1 or greater, or a ratio of about 7: 1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 7.5:1 or greater, or a ratio of about 7.5: 1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 8: 1 or greater, or a ratio of about 8: 1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 8.5: 1 or greater, or a ratio of about 8.5:1 or greater. Alternatively the weight ratio of granular activated carbon filter media 145 in upstream filter bed 144 to filter media 143 in downstream filter bed 142 is a ratio of 9: 1 or greater, or a ratio of about 9: 1 or greater.

In some embodiments, filter element 141 as a whole (including both upstream and downstream beds 144 and 142, respectively) is 550 grams (450 grams of granular activated carbon filter media 145 and 100 grams of filter media 143). In some embodiments, filter element 141 as a whole (including both upstream and downstream beds 144 and 142, respectively) is about 550 grams (about 450 grams of granular activated carbon filter media 145 and about 100 grams of filter media 143). In some embodiments, filter media 143 can include AA-K600 activated alumina impregnated with six percent potassium permanganate (KMnC ) available from Carbon Activated Corporation, Blasdell, NY, and granular activated carbon filter media 145 can include COC-A 60 Vapor phase coconut shell base granular activated carbon, also available from Carbon Activated Corporation. In some embodiments, filter media 143 can include a carbon Zeolite material, e.g., ORC-WF Organoclay also available from Carbon Activated Corporation, that is impregnated with six percent KMnO4, and granular activated carbon filter media 145 can include COC-A 60 Vapor phase coconut shell base granular activated carbon, also available from Carbon Activated Corporation.

As shown in Figs. 5 and 9-12, filter assembly 110 includes a sensor port flange 156 positioned more proximate inlet end 114 than outlet end 116, and a backing plate 146 coupled to outlet end 116 of filter assembly 110. Backing plate 146 is mounted to second end 154 of filter basket sleeve 115 via a non- mechanical attachment, e.g., via magnets, air pressure, or adhesive, or via mechanical attachment, e.g., spring loaded ball into wall recess, threads, or cam-lock. Sensor port flange 156 of filter assembly 110 is mounted to pressure port connector 160 of filter basket sleeve 1 15 via similar non-mechanical or mechanical attachments. In the embodiment of Figs. 5-12 and 16, filter assembly 110 includes a first set of magnets 148 operatively connected to sensor port flange 156, shown in Fig. 10. As shown in Figs. 6 and 9, filter assembly 110 includes a second set of magnets 150 operatively connected to backing plate 146. First and second sets of magnets 148 and 150 are configured and adapted to secure filter assembly 110 to corresponding sets of magnets on filter basket sleeve 115 of smoke evacuation device 100. While first and second sets of magnets 148 and 150 are shown with four and two magnets, respectively, those skilled in the art will readily appreciate that only one magnet 148 and one magnet 150 may be used in some embodiments. Additionally, while first and second sets of magnets 148 and 150 are shown as flat discs, they could also be longer and appear more cylindrical in shape.

As shown in Figs. 5 and 15A-16, filter basket sleeve 115 includes a pressure port connector 160 coupled to an inlet pressure port 162 of filter assembly 110. Pressure port connector 160 includes a set of magnets 164. First set of magnets 148 on sensor port flange 156 of filter assembly 110 is configured and adapted to couple sensor port flange 156 of filter assembly 1 10 to pressure port connector 160 of filter basket sleeve 115 by magnetically coupling with set of magnets 164. Both sets of magnets, 148 and 164, respectively, include two magnets. While sets of magnets 148 and 164, respectively, are shown with two magnets, those skilled in the art will readily appreciate that only one magnet 148 and one magnet 164 may be used in some embodiments, or more than two magnets 148 and magnets 164 may be used. Additionally, while each set of magnets 148 and 164 are shown as flat discs, they could also be longer and have a more cylindrical shape.

With reference now to Fig. 22, second end 154 of filter basket sleeve 115 is a downstream end and includes a third set of magnets 158 operatively connected thereto. Third set of magnets 158 is configured and adapted to mate with the second set of magnets 150 on the backing plate 146 of filter assembly 110 to join filter assembly 110 and second end 154 of filter basket sleeve 115. Second and third sets of magnets 150 and 158, respectively, each include four magnets. While second and third sets of magnets 150 and 158, respectively are shown with four magnets, those skilled in the art will readily appreciate that only one magnet 150 and one magnet 158 may be used in some embodiments. Additionally, while each set of magnets 150 and 158 are shown as flat discs, they could also be longer and have a more cylindrical shape. Those skilled in the art will readily appreciate that the magnets described above can be a variety of magnet types, including permanent magnets, temporary magnets, and electromagnets

As shown in Figs. 1, 5 and 10-13, two of the ports, ports 118 and 120, are one-inch diameter ports. Filter assembly 110 includes a third port 122, which is a 3/8 inch diameter port, positioned between the two one-inch ports 118. Port 122 is configured and adapted to engage with insufflation tubing 125 (shown in Fig. 2). Tubing 125 can be 3/8” diameter ISO compliant tubing. Port 122 includes a neck portion 161 having an outer diameter of approximately 3/8” such that the 3/8” inner diameter of insufflation tubing 125 can engage over neck portion 161. Generally, the insufflation tubing 125 matches the diameter of the ports. It is contemplated, however, that where the tubing size is smaller or larger than the port size, adapters can be used. Tubes 124 and 126 can be in fluid communication with a variety of surgical devices such as an electro-surgical pencil, suction equipment, or the like. Each port 120 and 118 includes a respective connecting neck 138 configured and adapted to be received within respective tubes 124 and 126. The outer diameter of neck 138 is approximately 1-inch in diameter to meet the 1-inch inner diameter of tubes 124 and 126. Tubes 124 and 126 are 1.0” ISO compliant tubes to mate with one-inch ports 118 and 120. Port 1 18 includes an opening 140 surrounding connecting neck 138. Tube 124 is configured and adapted to be positioned in a cylindrical space between the opening 140 and connecting neck 138 of port 118 and press-fit around connecting neck 138.

With continued reference to Figs. 10-12, filter assembly 110 includes slide covers 163, 165 and 167, each associated with respective ports 118, 120 and 122. Slide covers 163,

165 and 167 each include a respective gasket 169, 171 and 173. Each slide cover 163, 165 and 167, act to cover their respective ports when not in use, and slide open when a tube connection is desired. Filter assembly 110 includes a front plate 175 and label 175’. Each slide cover 163, 165 and 167 is configured and adapted to slide back and forth with respect to front plate 175.

As shown in Figs. 5, 12, 14, 15A, and 16, smoke evacuation device 100 includes a pressure sensor 166 operatively connected to a front plate 107 of smoke evacuation device chassis 102. Inlet pressure port 162 is in fluid communication with the flow path of filter assembly 1 10 upstream from a filter, e.g., upstream filter 117, via an aperture 179 in filter housing 112. Inlet pressure port 162 is also in fluid communication with pressure sensor 166 such that pressure sensor 166 is able to measure the pressure upstream from upstream filter 117. Smoke evacuation device 100 includes an inlet pressure conduit 168 with a first end 176 coupled to pressure port connector 160. Pressure port connector 160 of filter basket sleeve 115 is coupled to inlet pressure port 162 of filter assembly 110. Inlet pressure conduit 168 includes a second end 178 coupled to pressure sensor 166. By drawing the pressure from upstream of upstream filter 117 and supplying it to pressure sensor 166 via conduit 168, there is less noise between the source of occlusion (if any) and the pressure sensing. This provides a more accurate pressure reading. Continuous pressure measurements from pressure sensor

166 establish a baseline pressure that can then be compared against later pressure readings. Pressure sensor 166 is operatively coupled to a printed circuit board (PCB) 189 having a memory configured to store the pressure measurements and at least one predefined program to establish the baseline pressure and/or compare later pressure measurements against the baseline pressure to determine whether there is a deviation. A deviation in a later pressure reading from the baseline reading may indicate an occlusion and trigger an occlusion warning on a user interface 130, or via other means (e.g., an audible indicator).

With continued reference to Figs. 5, 14, 15A, and 16, in some embodiments, smoke evacuation device includes a second pressure sensor 174 open to ambient air to sense ambient pressure within smoke evacuation device 100. Based on a comparison between the ambient pressure measured at second pressure sensor 174 and a pressure at pressure sensor 166, the pressure drop across filter housing 112 from inlet end 114 to outlet end 116 can be determined.

As shown in Figs. 17A-18, smoke evacuation device 100 includes a rear duct 172 coupled to downstream end 154 of filter basket sleeve 115. In some embodiments, like that of Figs. 15B and 17B, an outlet pressure port 177 is defined in rear duct 172. In the embodiment of Fig. 17B, the outlet pressure port 177 is in fluid communication with pressure sensor 174 via outlet pressure conduit 170. In this way, a differential pressure across filter housing 112 can be obtained, between inlet end 114 to outlet end 116 thereof. This differential pressure can be utilized in detecting an occlusion within filter assembly 110, for example. It is also contemplated that instead of pressure sensor 174 and outlet pressure conduit 170, a pressure sensor 195 could be directly mounted to rear duct 172. Pressure sensor 195 would have a similar functionality to measure differential pressure as described above for sensor 174.

With reference to Figs. 1-3 and 20-21, smoke evacuation device 100 includes at least one chassis grounding post 192 extending inward from lower surface 182 of smoke evacuation chassis 102. Chassis grounding post 192 provides a common grounding circuit for smoke evacuation device 100 and for surgical system assembly 10 as a whole, e.g., electro- surgical device 12 and an insufflation device 22. Smoke evacuation device 100 includes at least one ground wire 194 connected to grounding post 192. In some embodiments, pressure sensor is coupled directly to filter element 141. In still further embodiments, a pressure sensor is integrated into the filter element. For example, a pressure sensor can be included in the wall of the filter housing 112, as illustrated with RFID tag 121, but exposed to the internal flow path.

With reference now to Figs. 20-21, smoke evacuation device 100 includes two respective spring clips 180 operatively associated with each docking connector 111 on lower surface 106 of chassis 102. Docking connector 111 on a front side 129 of chassis 102 is shown, but docking connector 111 on a rear side 128 of chassis 102 would be similar. Smoke evacuation device 100 includes four pairs of standoffs 184 extending downward from lower surface 106 of chassis 102 (two pairs per docking connector 111). Each spring clip 180 is coupled to a respective standoff pair 184. Each spring clip 180 includes a pair of side apertures 186 and a central aperture 185. Each side aperture 186 receives a respective one of a screw or other fastener 188. Each fastener 188 engages with a respective central aperture of each standoff 184 thereby securing each spring clip 180 to a respective pair of standoffs 184. Centra] aperture 185 of each spring clip 180 is configured and adapted to mate with a protrusion, e.g., a protrusion similar to ball stud connector 127, on an adjacent stacked unit, should it be so desired.

Those having ordinary skill in the art understand that any numerical values disclosed herein can be exact values or can be values within a range. Further, any terms of approximation (e.g., “about”, “approximately”, “around”) used in this disclosure can mean the stated value within a range. For example, in certain embodiments, the range can be within (plus or minus) 10%, or within 5%, or within 2%, or within 1% or within any other suitable percentage or number as appreciated by those having ordinary skill in the art (e.g., for known tolerance limits or error ranges).

The articles “a”, “an”, and “the” as used herein and in the appended claims are used herein to refer to one or to more than one (i.e., to at least one) of the grammatical object of the article unless the context clearly indicates otherwise. By way of example, “an element” means one element or more than one element.

The phrase “and/or,” as used herein in the specification and in the claims, should be understood to mean “either or both” of the elements so conjoined, i.e., elements that are conjunctively present in some cases and disjunctively present in other cases. Multiple elements listed with “and/or” should be construed in the same fashion, i.e., “one or more” of the elements so conjoined. Other elements may optionally be present other than the elements specifically identified by the “and/or” clause, whether related or unrelated to those elements specifically identified. Thus, as a non-limiting example, a reference to “A and/or B”, when used in conjunction with open-ended language such as “comprising” can refer, in one embodiment, to A only (optionally including elements other than B); in another embodiment, to B only (optionally including elements other than A); in yet another embodiment, to both A and B (optionally including other elements); etc. As used herein in the specification and in the claims, “or” should be understood to have the same meaning as “and/or” as defined above. For example, when separating items in a list, ”or” or “and/or” shall be interpreted as being inclusive, i.e., the inclusion of at least one, but also including more than one, of a number or list of elements, and, optionally, additional unlisted items. Only terms clearly indicated to the contrary, such as “only one of’ or “exactly one of,” or, when used in the claims, “consisting of,” will refer to the inclusion of exactly one element of a number or list of elements. In general, the term “or” as used herein shall only be interpreted as indicating exclusive alternatives (i.e., “one or the other but not both”) when preceded by terms of exclusivity, such as “either,” “one of,” “only one of,” or “exactly one of.”

Any suitable combination(s) of any disclosed embodiments and/or any suitable portion(s) thereof are contemplated herein as appreciated by those having ordinary skill in the art in view of this disclosure.

While the subject invention has been shown and described with reference to various embodiments, those skilled in the art will readily appreciate that changes and/or modifications may be made thereto without departing from the scope of the subject disclosure. For example, those skilled in the art will readily appreciate that the various aspects of the invention, including material compositions and proportions, other aspects of filter elements and related devices, attachment elements or mechanisms, as well as the electro-surgical, insufflation, and smoke evacuation devices described and illustrated throughout the specification, and components thereof, can be readily interchanged with one another and utilized alone or in any combination, without limitation, which is explicitly contemplated herein.

Claims

1. A filter assembly for a smoke evacuation device comprising: a housing having an inlet end and an outlet end; and a filter element positioned within the housing between the inlet end and the outlet end thereof, wherein the filter element includes a filter media impregnated with potassium permanganate.

2. The filter assembly as recited in claim 1 , the filter element further comprising an activated carbon filter media, wherein a weight ratio of the activated carbon filter media in the filter element to the filter media impregnated with potassium permanganate in the filter element is about 4.5:1.

3. The filter assembly as recited in claim 1 , wherein the filter element includes a downstream filter bed and an upstream filter bed.

4. The filter assembly as recited in claim 3, wherein the upstream filter bed is positioned between the inlet end of the housing and the downstream filter bed.

5. The filter assembly as recited in claim 3, wherein the upstream filter bed includes a granular activated carbon filter media.

6. The filter assembly as recited in claim 1 , wherein a weight ratio of the granular activated carbon filter media in the filter element to a filter media impregnated with potassium permanganate in the filter element is about 4.5: 1.

7. The filter assembly as recited in claim 3, wherein the downstream filter bed includes the filter media impregnated with potassium permanganate.

8. The filter assembly as recited in claim 3, wherein the upstream filter bed includes 450 grams of a granular activated carbon filter media.

9. The filter assembly as recited in claim 3, wherein the downstream filter bed includes 100 grams of the filter media impregnated with potassium permanganate.

10. The filter assembly as recited in claim 3, wherein the upstream filter bed includes a granular activated carbon filter media, wherein the downstream filter bed includes the filter media impregnated with potassium permanganate, wherein a weight ratio of the granular activated carbon filter media in the upstream filter bed to the filter media impregnated with potassium permanganate in the downstream filter bed is about 4.5:1.

1 1 . The filter assembly as recited in any of claims 1 -10, wherein the filter media impregnated with potassium permanganate is at least one of a carbon zeolite material impregnated with potassium permanganate, or an activated alumina material impregnated with potassium permanganate.

12. The filter assembly as recited in claim 1, wherein the housing includes an RFID tag mounted thereto.

13. The filter assembly of claim 1, further comprising: a pressure sensor in fluid communication with the flow path for measuring a pressure upstream from the filter.

14. The filter assembly as recited in claim 13, further comprising an inlet pressure port in fluid communication with the flow path upstream from the filter and with the pressure sensor for taking a series of measurements to establish a baseline pressure.

15. The filter assembly as recited in claim 13, wherein the filter housing includes a sensor port flange positioned more proximate the inlet end than the outlet end, wherein the filter assembly comprises a non-mechanical attachment mechanism operatively connected to the sensor port flange configured and adapted to secure the filter assembly to a smoke evacuation device.

16. The filter assembly of claim 1, further comprising: a sensor port flange positioned more proximate the inlet end than the outlet end; a backing plate coupled to the outlet end of the filter assembly; and a first non-mechanical attachment mechanism operatively connected to at least one of the sensor port flange or the backing plate, wherein the first non-mechanical attachment mechanism is configured and adapted to secure the filter assembly to a smoke evacuation device.

17. The filter assembly as recited in claim 16, wherein the first non-mechanical attachment mechanism is operatively connected to the backing plate, wherein the first non- mechanical attachment mechanism is configured and adapted to join the hacking plate of the filter assembly to a smoke evacuation device.

18. The filter assembly as recited in claim 16, wherein the first non-mechanical attachment mechanism is operatively connected to the sensor port flange, wherein the first non-mechanical attachment mechanism on the sensor port flange is configured and adapted to ensure a secure fit between the sensor port flange and a sensor port connector of a smoke evacuation device.

19. A smoke evacuation device for use with the filter assembly of claim 1 , the smoke evacuation device comprising: a smoke evacuation device housing including a filter basket sleeve, the filter basket sleeve adapted and configured to receive the filter assembly; and a pressure sensor in fluid communication with the flow path for measuring a pressure upstream from the filter.

20. The smoke evacuation device as recited in claim 19, wherein the filter assembly includes an inlet pressure port in fluid communication with the flow path upstream from the filter and with the pressure sensor for taking a series of measurements to establish a baseline pressure.

21. The smoke evacuation device as recited in claim 22, wherein the filter basket sleeve includes a pressure port connector adapted and configured to couple to the inlet pressure port of the filter assembly.

22. The smoke evacuation device as recited in claim 21 , comprising an inlet pressure conduit having a first end coupled to the pressure port connector.

23. The smoke evacuation device as recited in claim 22, wherein the inlet pressure conduit includes a second end coupled to the pressure sensor.

24. The smoke evacuation device as recited in claim 19, wherein the filter housing includes a sensor port flange positioned more proximate the inlet end than the outlet end, wherein the filter assembly comprises a non-mechanical attachment mechanism operatively connected to the sensor port flange configured and adapted to secure the filter assembly to the smoke evacuation device.

25. The smoke evacuation device as recited in claim 19, wherein the pressure sensor is coupled to the filter housing on an upstream side of the filter.

26. The smoke evacuation device as recited in claim 19, further comprising a second pressure sensor in fluid communication with ambient air within the smoke evacuation device.

27. The smoke evacuation device as recited in claim 19, further comprising a second pressure sensor in fluid communication with a downstream side of the filter.

28. A smoke evacuation device adapted and configured to receive the filter assembly of claim 16, comprising: a smoke evacuation device housing including a filter basket sleeve; and a second non-mechanical attachment mechanism provided on the smoke evacuation device, operatively connected to at least one of the sensor port flange or the backing plate, configured and adapted to secure the filter assembly to the smoke evacuation device.

29. The smoke evacuation device as recited in claim 28, wherein the second non- mechanical attachment mechanism is adapted and configured to engage the backing plate, wherein the filter basket sleeve includes a first end and a second end, wherein the second end includes the second non-mechanical attachment mechanism operatively connected thereto, wherein the first non-mechanical attachment mechanism on the backing plate is configured and adapted to mate with the second non-mechanical attachment mechanism of the filter basket sleeve to join the filter assembly and the second end of the filter basket sleeve.

30. The smoke evacuation device as recited in claim 28, wherein the second nonmechanical attachment mechanism is operatively connected to the sensor port flange, wherein the filter basket sleeve includes a first end and a second end, wherein the first end of the filter basket sleeve includes a sensor port connector including another non-mechanical attachment mechanism connected thereto, wherein the first non-mechanical attachment mechanism of the sensor port connector is configured and adapted to mate with the second non-mechanical attachment mechanism operatively connected to the sensor port flange to join the filter assembly and the first end of the filter basket sleeve and ensure alignment and secure fit between the sensor port flange and the sensor port connector.

31. The filter assembly of claims 16, 17, 18, 29 or 30, wherein the first non-mechanical attachment mechanism is at least one magnet.

32. The filter assembly of claim 31, wherein the at least one magnet includes two or four magnets.

33. The smoke evacuation device of claims 28, 29 or 30, wherein the second non- mechanical attachment mechanism is at least one magnet.

34. The smoke evacuation device of claim 34, wherein the at least one magnet includes two or four magnets.

35. A filter element comprising : at least one of an upstream filter bed and a downstream filter bed, wherein at least one of the fdter beds includes a filter media impregnated with potassium permanganate, wherein the filter media impregnated with potassium permanganate is configured and adapted to remove noxious odor.

36. The filter element as recited in claim 35, wherein the upstream filter bed includes a granular activated carbon filter media.

37. The filter element as recited in claim 35, wherein a weight ratio of the granular activated carbon filter media in the filter element to a filter media impregnated with potassium permanganate in the filter element is about 4.5:1.

38. The filter element as recited in claim 35, wherein the downstream filter bed includes the filter media impregnated with potassium permanganate.

39. The filter element as recited in claim 35, wherein the upstream filter bed includes 450 grams of a granular activated carbon filter media.

40. The filter element as recited in claim 35, wherein the downstream filter bed includes 100 grams of the filter media impregnated with potassium permanganate.

41. The filter element as recited in claim 35, wherein the upstream filter bed includes a granular activated carbon filter media, wherein the downstream filter bed includes the filter media impregnated with potassium permanganate, wherein a weight ratio of the granular activated carbon filter media in the upstream filter bed to the filter media impregnated with potassium permanganate in the downstream filter bed is about 4.5:1.

42. The filter element as recited in any of claims 35-41, wherein the filter media impregnated with potassium permanganate is at least one of a carbon zeolite material impregnated with potassium permanganate, or an activated alumina material impregnated with potassium permanganate.