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EP4626500A1 - Dispositif et système de traitement des plaies par pression négative - Google Patents

Dispositif et système de traitement des plaies par pression négative

Info

Publication number
EP4626500A1
EP4626500A1 EP23821019.9A EP23821019A EP4626500A1 EP 4626500 A1 EP4626500 A1 EP 4626500A1 EP 23821019 A EP23821019 A EP 23821019A EP 4626500 A1 EP4626500 A1 EP 4626500A1
Authority
EP
European Patent Office
Prior art keywords
airflow
canister
unit
airflow channel
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23821019.9A
Other languages
German (de)
English (en)
Inventor
Benjamin A. Pratt
James Seddon
Michele A. Waldner
Jeffrey G. Zinn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solventum Intellectual Properties Co
Original Assignee
Solventum Intellectual Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Solventum Intellectual Properties Co filed Critical Solventum Intellectual Properties Co
Publication of EP4626500A1 publication Critical patent/EP4626500A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/98—Containers specifically adapted for negative pressure wound therapy
    • A61M1/982—Containers specifically adapted for negative pressure wound therapy with means for detecting level of collected exudate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/98—Containers specifically adapted for negative pressure wound therapy
    • A61M1/984—Containers specifically adapted for negative pressure wound therapy portable on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/3653—General characteristics of the apparatus related to heating or cooling by Joule effect, i.e. electric resistance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/368—General characteristics of the apparatus related to heating or cooling by electromagnetic radiation, e.g. IR waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6045—General characteristics of the apparatus with identification means having complementary physical shapes for indexing or registration purposes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters
    • A61M2205/7536—General characteristics of the apparatus with filters allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/084—Supporting bases, stands for equipment
    • A61M2209/086—Docking stations

Definitions

  • the present disclosure generally relates to a device and a system including the device.
  • the present disclosure generally relates to a device and a system for negative pressure wound therapy.
  • Wounds generally produce fluids, e.g., an exudate, such as, slough, necrotic tissue, and microbial load (e.g., bacteria and biofilms).
  • Medical dressings are generally used at a wound site to address the production and removal of the fluids from the wound. If not properly addressed, the fluids at the wound can lead to infection or maceration of the wound site.
  • Negative pressure wound therapy (NPWT) systems are embodied as sealed wound-care systems particularly indicated for wounds, such as, chronic persistent wounds and/or complicated wounds. Specifically, for promoting wound healing, a pressure that is reduced relative to the surroundings (commonly referred to as “negative pressure”) is applied to the wound. The negative pressure causes mechanical contraction of the wound and removal of the exudates from the wound, thus promoting formation of granulation tissues and accelerating wound healing.
  • the NPWT system typically includes a therapy unit that is in fluid communication with the wound.
  • the exudates are generally collected in a canister for disposal or analysis.
  • the canisters are sized to obviate the need for frequent replacement even when used in the treatment of patients with wounds generating a high volume of exudate.
  • the present disclosure relates to a device and a system including the device for negative pressure wound therapy.
  • the present disclosure provides a device for a therapy unit configured to apply a negative pressure at a wound site and a canister configured to receive a fluid removed from the wound site in response to the negative pressure applied to the wound site.
  • the device includes a housing adapted to be removably coupled with the therapy unit.
  • the housing includes at least one device airflow channel extending therethrough.
  • the at least one device airflow channel is disposed in fluid communication with the canister when the housing is removably coupled with the therapy unit.
  • the device further includes an airflow unit configured to provide an airflow through the at least one device airflow channel, such that the airflow is directed through the canister.
  • the present disclosure provides a system.
  • the system includes a therapy unit including a negative pressure source fluidly communicating with a wound site and configured to apply a negative pressure at the wound site.
  • the system further includes a canister fluidly communicating with the wound site and configured to receive a fluid removed from the wound site in response to the negative pressure applied to the wound site.
  • the canister is configured to be removably coupled with the therapy unit.
  • the canister includes at least one canister airflow channel extending therethrough.
  • the system further includes a device for the therapy unit.
  • the device includes a housing adapted to be removably coupled with the therapy unit.
  • the housing includes at least one device airflow channel extending therethrough.
  • the device further includes an airflow unit configured to provide an airflow through the at least one device airflow channel.
  • the at least one device airflow channel is in fluid communication with the at least one canister airflow channel of the canister, such that the airflow is directed through the at least one canister airflow channel.
  • FIG. 1 A is a schematic front view illustrating a system including a therapy unit, a canister, and a device detached from the therapy unit, according to an embodiment of the present disclosure
  • FIG. IB is a schematic top view illustrating the system, according to an embodiment of the present disclosure.
  • FIG. 2A is a schematic front view illustrating the therapy unit and the canister removably coupled to the device, according to an embodiment of the present disclosure
  • FIG. 2B is a schematic top view of the system of FIG. 2A, according to an embodiment of the present disclosure
  • FIGS. 3A and 3B are schematic bottom views of the device in non-operational and operational modes, respectively, according to an embodiment of the present disclosure
  • FIG. 3C is a schematic front view of the device, according to an embodiment of the present disclosure
  • FIG. 3D is a schematic front view of the device, according to another embodiment of the present disclosure
  • FIG. 4A is a schematic view of a canister, according to an embodiment of the present disclosure.
  • FIG. 4B is a schematic exploded view of the canister, according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic front view of the system, according to another embodiment of the present disclosure.
  • FIG. 6 is a bar graph depicting an effect of environmental conditions on a rate of evaporation of a fluid in the system, according to an embodiment of the present disclosure.
  • first and second are used as identifiers. Therefore, such terms should not be construed as limiting of this disclosure.
  • the terms “first” and “second” when used in conjunction with a feature or an element can be interchanged throughout the embodiments of this disclosure.
  • “at least one of A and B” should be understood to mean “only A, only B, or both A and B”.
  • Coupled may include direct physical connections between two or more components, or indirect physical connections between two or more components that are connected together by one or more additional components.
  • a first component may be coupled to a second component by being directly connected together or by being connected by a third component.
  • the term “communicably coupled to” refers to direct coupling between components and/or indirect coupling between components via one or more intervening components.
  • Such components and intervening components may comprise, but are not limited to, junctions, communication paths, components, circuit elements, circuits, functional blocks, and/or devices.
  • a signal conveyed from a first component to a second component may be modified by one or more intervening components by modifying the form, nature, or format of information in a signal, while one or more elements of the information in the signal are nevertheless conveyed in a manner than can be recognized by the second component.
  • the present disclosure relates to a device and a system for negative pressure wound therapy (NPWT) including the device.
  • NGWT negative pressure wound therapy
  • the system includes a therapy unit including a negative pressure source fluidly communicating with a wound site and configured to apply a negative pressure at the wound site.
  • the system further includes a canister fluidly communicating with the wound site and configured to receive a fluid removed from the wound site in response to the negative pressure applied to the wound site.
  • the canister is configured to be removably coupled with the therapy unit.
  • the canister includes at least one canister airflow channel extending therethrough.
  • the system further includes a device for the therapy unit.
  • the device includes a housing adapted to be removably coupled with the therapy unit.
  • the housing includes at least one device airflow channel extending therethrough.
  • the device further includes an airflow unit configured to provide an airflow through the at least one device airflow channel.
  • the at least one device airflow channel is in fluid communication with the at least one canister airflow channel of the canister, such that the airflow is directed through the at least one canister airflow channel.
  • the airflow unit configured to provide the airflow may therefore actively enhance evaporation of the fluid removed from the wound site and stored in the canister. Due to the evaporation of the fluid from the canister, a volume of the fluid in the canister may be kept below a maximum capacity of the canister for a significantly longer time duration. In other words, a greater volume of the fluid can be received and stored by the same canister without a requirement to replace the canister for the significantly longer time duration. Therefore, an effective evaporation of the fluid from the canister may increase the time over which the system can be used without a need to empty or replace the canister.
  • the airflow unit may further be configured to provide the evaporation to prevent the fluid in the canister from attaining the maximum capacity during a typical duration for treatment of the wound site.
  • the airflow unit may therefore provide enhanced evaporation of the fluid from the canister to extend per usage time of the canister.
  • the size of the canister may be reduced to further increase the portability of the system. Thus, a smaller canister may manage the greater volume of the fluid. This may also lead to a reduction in a size of the therapy unit, and thereby, a size and a weight of the overall system.
  • the evaporation of the fluid stored in the canister by the airflow may maintain the volume of the fluid inside the canister below the maximum capacity of the canister, such that a larger volume of the fluid may be removed from the wound site without increasing the size of the canister or reducing the portability of the system.
  • an ability of the system to manage an increase in the volume of the fluid removed from the wound site may be substantially independent of the size of the canister and thus may improve the portability of the system.
  • FIG. 1A is a schematic front view illustrating a system 100, according to an embodiment of the present disclosure.
  • the system 100 includes a therapy unit 102.
  • the therapy unit 102 includes a negative pressure source 104 fluidly communicating with a wound site 106 and configured to apply a negative pressure at the wound site 106.
  • the negative pressure source 104 may include a peristaltic pump, a diaphragmatic pump, or any other suitable mechanism.
  • the negative pressure source 104 may be a miniature pump or micropump that may be adapted to maintain or draw adequate and therapeutic negative pressure levels.
  • the system 100 is embodied as a negative pressure wound therapy (NPWT) system herein.
  • the system 100 may be embodied as a wound therapy system for treating wounds, conventionally known in the art.
  • NGWT negative pressure wound therapy
  • the canister 108 is configured to be removably coupled with the therapy unit 102.
  • the canister 108 is shown removably coupled with the therapy unit 102.
  • the therapy unit 102 may include a keyway recess (not shown) that may receive a latch (not shown) of the canister 108 to removably couple the canister 108 with the therapy unit 102.
  • the therapy unit 102 and the canister 108 may include any other attachment mechanism to removably couple the canister 108 with the therapy unit 102.
  • the canister further includes at least one canister airflow channel 112 extending therethrough.
  • FIG. 2B is a schematic top view illustrating the housing 116 removably coupled to the therapy unit 102, according to an embodiment of the present disclosure.
  • the device 114 includes an airflow unit 126.
  • the airflow unit 126 is disposed within the housing 116 of the device 114.
  • the airflow unit 126 may be disposed external to the housing 116 of the device 114.
  • the airflow unit 126 is configured to provide an airflow 120 through the at least one device airflow channel 118.
  • the airflow unit 126 is configured to provide the airflow 120 through the at least one device airflow channel 118, such that the airflow 120 is directed through the canister 108.
  • the at least one device airflow channel 118 is in fluid communication with the at least one canister airflow channel 112 of the canister 108, such that the airflow 120 is directed through the at least one canister airflow channel 112.
  • Disposing the airflow unit 126 in a device i.e., the device 114 separate from the therapy unit 102, may ensure that the therapy unit 102 is smaller and in size lighter in weight. Further, the device 114 separate from the therapy unit 102 may include a separate power source and power supply. Therefore, power requirements of the airflow unit 126 may not negatively impact power requirements of the therapy unit 102.
  • the at least one device airflow channel 118 may extend between an inlet 122 and an outlet 124 (shown in FIG. 1A).
  • the outlet 124 may direct the airflow 120 to the at least one canister airflow channel 112.
  • the device 114 further includes a controller 128 communicably coupled to the airflow unit 126.
  • the controller 128 may include one or more processors and one or more memories.
  • the one or more processors may embody a single microprocessor or multiple microprocessors for receiving various input signals. Numerous commercially available microprocessors may be configured to perform the functions of the one or more processors.
  • Each processor may further include a general processor, a central processing unit, an application specific integrated circuit (ASIC), a digital signal processor, a field programmable gate array (FPGA), a digital circuit, an analog circuit, a controller, a microcontroller, any other type of processor, or any combination thereof.
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Each processor may include one or more components that may be operable to execute computer executable instructions or computer code that may be stored and retrieved from the one or more memories.
  • the controller 128 is configured to control the airflow unit 126 based on an airflow rate of the airflow 120 through the at least one device airflow channel 118. In some examples, the airflow rate may be based on manual user settings.
  • the device 114 includes a detection sensor 130 configured to generate a detection signal 131 when the device 114 is removably coupled with the therapy unit 102.
  • the detection sensor 130 is communicably coupled to the controller 128.
  • the controller 128 is configured to control the airflow unit 126 upon receiving the detection signal 131.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente divulgation concerne un dispositif pour une unité de traitement configurée pour appliquer une pression négative sur le site d'une plaie et une cartouche configurée pour recevoir un fluide retiré du site de la plaie en réponse à la pression négative appliquée sur le site de la plaie. Le dispositif comprend un boîtier adapté pour être accouplé de manière amovible à l'unité de traitement. Le boîtier comprend au moins un canal de circulation d'air de dispositif qui le traverse. Au moins un canal de circulation d'air du dispositif est disposé en communication fluidique avec la cartouche lorsque le boîtier est accouplé de manière amovible à l'unité de traitement. Le dispositif comprend en outre une unité de circulation d'air configurée pour fournir une circulation d'air à travers ledit au moins un canal de circulation d'air de dispositif, de sorte que la circulation d'air soit dirigée à travers la cartouche.
EP23821019.9A 2022-12-01 2023-12-01 Dispositif et système de traitement des plaies par pression négative Pending EP4626500A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263429183P 2022-12-01 2022-12-01
PCT/IB2023/062134 WO2024116144A1 (fr) 2022-12-01 2023-12-01 Dispositif et système de traitement des plaies par pression négative

Publications (1)

Publication Number Publication Date
EP4626500A1 true EP4626500A1 (fr) 2025-10-08

Family

ID=89157877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23821019.9A Pending EP4626500A1 (fr) 2022-12-01 2023-12-01 Dispositif et système de traitement des plaies par pression négative

Country Status (2)

Country Link
EP (1) EP4626500A1 (fr)
WO (1) WO2024116144A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8604265B2 (en) * 2010-04-16 2013-12-10 Kci Licensing, Inc. Dressings and methods for treating a tissue site on a patient
WO2014028212A2 (fr) * 2012-08-13 2014-02-20 Kci Licensing, Inc. Système de thérapie intelligent à gestion d'évaporation
CN116997373A (zh) * 2021-03-17 2023-11-03 凯希制造无限公司 用于伤口治疗系统的蒸发性流体管理罐

Also Published As

Publication number Publication date
WO2024116144A1 (fr) 2024-06-06

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