CN215536952U - Anti-overflow protector, collection container and thoracic drainage device - Google Patents

Abstract

The application provides an anti-overflow protector, collection container and chest drainage device, wherein, this collection container sets up with anti-overflow protector alone, and this anti-overflow protector is two independent parts with collection container, and it docks with the detachable mode. The collecting container is communicated with a negative pressure suction device, a pressure detection device and the like through the anti-overflow protector. Under the negative pressure suction mode, the anti-overflow protector arranged in the negative pressure suction channel prevents liquid from flowing to the negative pressure suction device, and the anti-overflow protector arranged in the pressure detection channel prevents liquid from flowing to the pressure detection device. When needs carry out the drainage with gravity drainage mode, can separate collection container and host computer, anti-overflow protector, this collection container possesses the water seal chamber to can accomplish the drainage operation with the mode of traditional gravity drainage.

Description

Anti-overflow protector, collection container and thoracic drainage device

Technical Field

The application relates to the field of medical equipment, in particular to a structure of a thoracic drainage device.

Background

A chest drainage device is a commonly used medical device, and may be used, for example, in drainage of pleural and mediastinal cavities for traumatic pneumothorax, after cardiac or thoracic surgery, and in chest injuries, pleural effusion or other related conditions.

A negative pressure suction type thoracic drainage device is driven by negative pressure, such as providing a negative pressure source at the head of a bed, connecting a disposable thoracic drainage device with the negative pressure source through a hose, and then connecting a drainage tube of the disposable thoracic drainage device with a patient. The negative pressure source sucks negative pressure generated in the collecting container, residual pleural liquid and residual gas can be sucked as soon as possible, so that negative pressure is formed in the pleural cavity quickly, and the recovery speed of a patient is accelerated. The liquid is pumped out and stored in a collecting container, so that pollution is avoided. Generally, in order to prevent the liquid from being sucked into the source of negative pressure, which could cause damage, an anti-overflow filter element is usually integrated in the collection container, which allows the passage of gas, but swells when it comes into contact with water, thus blocking the passage of the collection container to the source of negative pressure, preventing the liquid from entering the source of negative pressure.

The other thoracic drainage device adopts a traditional gravity drainage mode, one end of a drainage tube is placed into the thoracic cavity, the other end of the drainage tube is placed into a water-sealed bottle which is lower than the drainage tube, liquid discharged from the thoracic cavity enters a collection container through the drainage tube for storage, and discharged gas is discharged through a water-sealed cavity.

The two thoracic drainage devices have respective structures and are difficult to flexibly switch to use, for example, in a negative pressure suction mode, the collection container is integrated with an anti-overflow filter element and cannot be used for gravity drainage. And the water-sealed bottle for gravity drainage has no anti-overflow structure and cannot be introduced into a negative pressure suction mode.

Disclosure of Invention

The application provides an anti-overflow protector, collection container and chest drainage device and be used for the collection container of chest drainage for show a structure that collection container and anti-overflow protector separately set up and can dismantle.

In view of the above, an embodiment of the present application provides an anti-overflow protector for a thoracic drainage device, which includes a protector housing, wherein a negative pressure suction channel, a pressure detection channel and an anti-overflow filter core are disposed in the protector housing, the negative pressure suction channel and the pressure detection channel are separated from each other, and the negative pressure suction channel is detachably communicated with a water seal cavity of a collection container; the pressure detection channel is used for being communicated with the liquid collection cavity of the collection container; the anti-overflow filter element is arranged in the negative pressure suction channel and the pressure detection channel to prevent liquid overflow.

In one embodiment, the negative pressure suction channel has a second gas flow interface for detachably communicating with a collection container and a third gas flow interface for communicating with a negative pressure suction device for sucking gas in the collection container; the pressure detection channel is provided with a second pressure detection interface and a third pressure detection interface, the second pressure detection interface is used for being detachably communicated with the collection container, and the third pressure detection interface is used for being communicated with a pressure detection device so as to detect the pressure in the collection container; the anti-overflow filter core includes first filter core and second filter core, first filter core is located in the negative pressure suction passageway for prevent that liquid from flowing to negative pressure suction device, the second filter core is located in the pressure measurement passageway, be used for preventing liquid flow to pressure measurement device.

In one embodiment, the first filter element is a cylindrical structure, and an opening of the first filter element faces to one end of the second gas flow connector.

In one embodiment, the open mouth wall of the first cartridge sealingly abuts the mouth wall of the second gas flow interface.

In one embodiment, the anti-overflow protector further comprises a sealing assembly for sealing the third pressure detection interface when the anti-overflow protector is disengaged from the negative pressure suction device.

In one embodiment, the pressure detection channel is provided with an installation cavity, the installation cavity is communicated with the third pressure detection interface, the sealing assembly comprises a sealing element and an elastic element, the sealing element is movably arranged in the installation cavity, the elastic element acts on the sealing element, and the elastic force of the elastic element drives the sealing element to seal the third pressure detection interface.

In one embodiment, the sealing member has a sealing portion and a connecting portion connected to the sealing portion, the sealing portion is disposed toward the third pressure detection port, and the elastic member acts on the connecting portion to drive the sealing portion to seal the third pressure detection port.

In view of the above, another anti-overflow protector for a thoracic drainage device is provided in one embodiment of the present application, which is characterized by comprising a pressure detection channel, an anti-overflow filter element and a sealing member, wherein the pressure detection channel has a second pressure detection interface and a third pressure detection interface, the second pressure detection interface is configured to communicate with the collection container, and the third pressure detection interface is configured to communicate with a pressure detection device in a detachable manner so as to detect the pressure in the collection container; the anti-overflow filter element comprises a second filter element which is arranged in the pressure detection channel and used for preventing liquid from flowing to the pressure detection device; when the anti-overflow protector is separated from the negative pressure suction device, the sealing piece seals the pressure detection channel under the self elasticity or the driving force of the driving piece.

In one embodiment, the seal is disposed within the pressure sensing channel.

In one embodiment, the sealing device further comprises a driving member, wherein the driving member is in transmission connection with the sealing member and drives the sealing member to seal the pressure detection channel.

In one embodiment, the driving member includes an elastic member, the pressure detection channel has an installation cavity, the installation cavity is communicated with the third pressure detection interface, the sealing member is movably disposed in the installation cavity, the elastic member acts on the sealing member, and the elastic force of the elastic member drives the sealing member to seal the third pressure detection interface.

In one embodiment, the sealing member has a sealing portion and a connecting portion connected to the sealing portion, the sealing portion is disposed toward the third pressure detection port, and the elastic member acts on the connecting portion to drive the sealing portion to seal the third pressure detection port.

In one embodiment, the sealing member is made at least partially of a flexible and elastic material, and the sealing member seals the pressure detection channel by virtue of its own elasticity.

In one embodiment, the anti-overflow protector includes a protector housing, the negative pressure suction channel and the pressure detection channel are both located within the protector housing, and the negative pressure suction channel and the pressure detection channel are spaced apart from each other.

In accordance with the above objects, there is provided in one embodiment a chest drainage device comprising:

the collecting container is provided with a liquid collecting cavity for collecting liquid, a water sealing cavity for water sealing, a liquid inlet interface for liquid to enter the liquid collecting cavity, a first gas circulation interface and a first pressure detection interface, the liquid collecting cavity is communicated with the water sealing cavity, the liquid inlet interface and the first pressure detection interface are both communicated with the liquid collecting cavity, and the first gas circulation interface is communicated with the water sealing cavity;

and the anti-overflow protector and the collecting container are two independent components, wherein the anti-overflow protector adopts the anti-overflow protector shown in any one of the embodiments.

The chest drainage device according to the above embodiment has a collection container while being separately provided with an anti-overflow protector which is two separate parts that are detachably butted against the collection container. The collecting container is communicated with a negative pressure suction device, a pressure detection device and the like through the anti-overflow protector. And in the negative pressure suction mode, the anti-overflow protector arranged in the pressure detection channel prevents the liquid from flowing to the negative pressure suction device. When needs carry out the drainage with gravity drainage mode, can separate collection container and host computer, anti-overflow protector, this collection container possesses the water seal chamber to can accomplish the drainage operation with the mode of traditional gravity drainage.

Drawings

FIG. 1 is a schematic, diagrammatic illustration of the configuration of the chest drainage device in one embodiment of the present application;

FIG. 2 is an exploded view of a collection container and an anti-overflow protector according to one embodiment of the present application;

FIG. 3 is an assembly view of a collection container and an anti-overflow protector according to one embodiment of the present application;

FIGS. 4 and 5 are schematic views of an embodiment of an anti-flooding protector according to the present application from two different perspectives;

FIG. 6 is a schematic view of various interfaces on a collection container corresponding to an anti-overflow protector in one embodiment of the present application;

FIG. 7 is an axial cross-sectional view of the anti-flooding protector through the second gas flow interface and the third gas flow interface in accordance with an embodiment of the present application;

FIG. 8 is an axial cross-sectional view of the anti-flooding protector (pressure sensing channel blocking state) of an embodiment of the present application, taken through the second pressure sensing port and the third pressure sensing port;

fig. 9 is a cross-sectional view of the anti-flooding protector (pressure detection channel conductive state) in the axial direction of the second pressure detection port and the third pressure detection port in one embodiment of the present application.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

An embodiment of the present application provides a thoracic drainage device for draining an effusion in a thoracic cavity of a human body to the outside of the body.

Referring to fig. 1, the thoracic drainage device includes a collection container 100, an anti-overflow protector 200, a drainage tube 300, a pressure detection device 400, and a negative pressure suction device 500. Wherein the collection container 100 and the anti-overflow protector 200 are the focus of the present description, reference is made to the prior art for other components. The negative pressure suction device 500 can be a negative pressure source commonly used by a plurality of devices (such as a central negative pressure source station in a hospital), and the negative pressure thereof is provided to each chest drainage device through a port arranged at the head of the bed. The negative pressure suction device 500 can also be a portable movable negative pressure source integrated in the chest drainage device, and at the moment, the chest drainage device does not need a negative pressure source butted with a bed head, so that the use can be more flexible.

Referring to fig. 1, 2 and 6, the collecting container 100 has a liquid collecting chamber 101 for collecting liquid, a water sealing chamber 102 for water sealing, a liquid inlet interface 103 for liquid to enter the liquid collecting chamber 101, a first gas flow interface 104 and a first pressure detecting interface 105. The liquid collecting cavity 101 is communicated with the water sealing cavity 102, the liquid inlet interface 103 and the first pressure detection interface 105 are both communicated with the liquid collecting cavity 101, and the first gas circulation interface 104 is communicated with the water sealing cavity 102.

The water sealing chamber 102 can adopt various existing water sealing structures, as shown in fig. 1, in one embodiment, the water sealing chamber 102 is a substantially U-shaped chamber, one end of the U-shaped chamber is communicated with the liquid collecting chamber 101, and the other end is communicated with the first gas circulation port 104.

Referring to fig. 1 to 9, the anti-overflow protector 200 includes a negative pressure suction passage 210, a pressure detection passage 220, and an anti-overflow filter cartridge 230. The negative pressure pumping channel 210 has a second gas flow interface 211 and a third gas flow interface 212. The second gas flow connection 211 is detachably connected to the first gas flow connection 104, and the third gas flow connection 212 is used to be connected to the negative pressure pumping device 500 for pumping the gas in the water seal chamber 102 and the liquid collecting chamber 101. The pressure detection channel 220 has a second pressure detection interface 221 and a third pressure detection interface 222. The second pressure detection port 221 is detachably communicated with the first pressure detection port 105, and the third pressure detection port 222 is used for being communicated with the pressure detection device 400 so as to detect the pressure in the liquid collection cavity 101.

With continued reference to fig. 1-9, the drain tube 300 is in communication with the inlet port 103 of the collection container 100 such that liquid drained from the drain tube 300 enters the collection container 100. The third gas flow interface 212 of the anti-overflow protector 200 is communicated with the negative pressure suction device 500, when the negative pressure suction device 500 sucks gas, the gas in the liquid collection chamber 101 and the gas in the water seal chamber 102 are all sucked away, so as to form negative pressure, and the liquid in the drainage tube 300 is sucked into the liquid collection chamber 101. The third pressure detecting interface 222 of the anti-overflow protector 200 is communicated with the pressure detecting device 400, and the pressure detecting device 400 can detect the air pressure related parameter in the liquid collecting cavity 101 through the pressure sensor 410. In some embodiments, the negative pressure suction device 500 and the pressure detection device 400 may be integrated into a single main body 600, or may be separately disposed in different components. The negative pressure suction apparatus 500 may employ a gas pump or the like to pump gas, thereby forming a negative pressure.

Referring to fig. 1 and 7 to 9, the anti-overflow filter element 230 includes a first filter element 231 and a second filter element 232, and the first filter element 231 is disposed in the negative pressure suction channel 210 to prevent liquid from flowing to the negative pressure suction device 500. The second filter element 232 is disposed in the pressure detecting channel 220 for preventing the liquid from flowing to the pressure detecting device 400.

In the chest drainage device shown in the above embodiment, the anti-overflow protector 200 is a separate component from the collection container 100, as shown in fig. 2 and 3, which are removably docked. The collection container 100 is communicated with the negative pressure suction means 500, the pressure detection means 400, etc. through the anti-overflow protector 200. In the negative pressure suction mode, the suction of the gas in the liquid collection chamber 101 and the water seal chamber 102 can be realized, so that the negative pressure is formed. Further, the pressure detection device 400 can detect the pressure in the liquid collection chamber 101. Meanwhile, the anti-overflow protector 200 can also play an anti-overflow role in preventing liquid from flowing to the negative pressure suction device 500 and the pressure detection device 400. In some embodiments, the negative pressure suction channel 210 may also be omitted from the anti-overflow protector 200, such that it is primarily used as an anti-overflow protection structure for the pressure detection channel 220. Alternatively, the pressure detection channel 220 may be omitted from the anti-overflow protector 200, which is mainly used as an anti-overflow protection structure of the negative pressure suction channel 210.

The collection container in current negative pressure suction mode because integrated anti-overflow filter core, when this collection container carries out the drainage with gravity drainage mode, in case when liquid flows to the anti-overflow filter core, will lead to the anti-overflow filter core inflation to block the gas outlet of collection container, lead to gravity drainage failure, cause extremely serious incident even. In the chest drainage device of the present embodiment, when drainage is required in the gravity drainage mode, the collection container 100 may be separated from the main body 600 and the anti-overflow protector 200. The collection container 100 is provided with a water-sealed chamber 102, and the first gas flow connection 104 thereof can be directly used as a gas outlet in a gravity flow guiding mode. The first cartridge 231 of the present arrangement for preventing liquid flow to the negative pressure suction device 500 is provided on an anti-overflow protector 200, the anti-overflow protector 200 being provided separately from the collection container 100, the first gas flow interface 104 being devoid of the first cartridge 231 therein. Thus, the collection container 100 is able to perform a draining operation in a conventional gravity draining mode.

In some embodiments, the pressure in the liquid collection chamber 101 need not be sensed in the gravity drainage mode, and therefore the first pressure sensing port 105 on the collection container 100 can be plugged. The plugging operation can be carried out by searching for a plugging piece by an operator. In some embodiments, the chest drainage device further comprises a blocking member that removably blocks the first pressure sensing port 105. In the negative pressure suction mode, the block piece is idle. In the gravity drainage mode, the first pressure detection port 105 can be plugged with the plug if necessary.

Referring to fig. 1 to 3 and 6, the collecting container 100 includes a container housing 110, and the liquid collecting chamber 101 and the water sealing chamber 102 are disposed in the container housing 110.

In one embodiment, the first gas flow port 104 and the first pressure sensing port 105 are located at the top of the top or side wall of the container housing 110 to provide better gas collection and reduce interference with the liquid in the liquid collection chamber 101.

As shown in fig. 2, in some embodiments, the collection container 100 may further be provided with a water filling port 106, a positive pressure release port 107, a negative pressure release port 108, a sampling port 120, etc. according to the requirement, which can be referred to the prior art and will not be described in too detail herein.

Referring to fig. 4, 5 and 7 to 9, the anti-overflow protector 200 includes a protector housing 240, the negative pressure suction passage 210 and the pressure detection passage 220 are both located within the protector housing 240, and the negative pressure suction passage 210 and the pressure detection passage 220 are spaced apart from each other.

The second pressure detection port 221 and the second gas flow port 211 are located on a first side of the protector housing 240, and the third pressure detection port 222 and the third gas flow port 212 are located on a second side of the protector housing 240, where the first side and the second side are opposite.

The collecting container 100 and the anti-overflow protector 200 can be fixedly connected by various detachable structures, such as clamping, detachable bonding, screwing, magnetic attraction, tight fit, and the like. Referring to fig. 4 to 6, in one embodiment, the collection container 100 and the anti-overflow protector 200 are each provided with a corresponding snap structure 109, 250, whereby the snap structures 109, 250 are detachably secured.

Further, each interface detachable butt joint of this collecting vessel 100 and anti-overflow protector 200, this detachable butt joint also can select for use all kinds of modes to realize, for example joint, detachable bonding, spiro union, magnetism are inhaled fixedly and tight fit etc..

Referring to fig. 4 and 6, in one embodiment, at least one of the second gas flow interface 211 and the first gas flow interface 104 has an interface portion made of a flexible material, so as to achieve a sealed communication by deformation of the flexible material. When the second gas flow connection 211 is pressed and connected with the first gas flow connection 104, the connection part is deformed, and the sealed connection is realized through the tight fit.

Similarly, the second pressure detecting interface 221 and the first pressure detecting interface 105 can be connected by various detachable connection methods. For example, in one embodiment, the second pressure detecting port 221 is plugged into the first pressure detecting port 105 to achieve sealed communication.

Referring to fig. 4 and 6, in one embodiment, the second pressure detecting port 221 has a needle-shaped connecting portion 2211, and the first pressure detecting port 105 has a flexible blocking portion having an insertion passage into which the needle-shaped connecting portion 2211 is inserted in a sealing manner. When the needle-shaped connecting portion 2211 is inserted into the insertion channel, the flexible blocking portion will tightly adhere to the needle-shaped connecting portion 2211 to form a seal.

Referring to the detachable docking structure of each interface between the collection container 100 and the anti-overflow protector 200, in some embodiments, the third pressure detection interface 222 and the third gas flow interface 212 of the anti-overflow protector 200 may also be sealably docked in a similar detachable manner with other components, such as the negative pressure suction device 500 and the pressure detection device 400. Of course, in other embodiments, the anti-overflow protector 200 and other components, such as the negative pressure suction device 500 and the pressure detection device 400, may be in sealed communication with each other using a structure that is difficult to disassemble.

Further, the first filter element 231 and the second filter element 232 are generally made of a material that can swell in water and block the corresponding passages, such as but not limited to a PE sintered material.

Referring to fig. 7, in an embodiment, the first filter element 231 is a cylindrical structure, and an opening 2311 thereof is disposed toward an end of the second gas flow connection 211. When liquid enters the second gas flow connection 211 with the gas flow, it can be collected in the interior of the first filter element 231.

In order to enhance the filtering effect, in an embodiment, please continue to refer to fig. 7, the opening wall of the opening 2311 of the first filter element 231 is in sealing contact with the opening wall of the second gas flow connection 211.

On the other hand, when the user uses the negative pressure suction thoracic drainage device to drain, if the user wants to get up and walk, the user must carry the whole thoracic drainage device to move together in order to avoid the contact between the thoracic cavity and the outside air, which is very inconvenient.

The present application provides a structure in which the collection container 100 and the anti-overflow protector 200 can be separated from the main body 600 (including the negative pressure suction device 500 and the pressure detection device 400), so that it is more convenient to carry the collection container 100 and the anti-overflow protector 200 only when a user needs to walk, without taking the entire main body 600 to act together.

However, considering that the anti-overflow protector 200 has the pressure detecting channel 220, which is exposed to the air after being separated from the pressure detecting device 400, in one embodiment of the present application, the anti-overflow protector 200 further includes a sealing member. When the anti-overflow protector 200 is disengaged from the negative pressure suction device 500, the sealing member seals the pressure detection passage 220 under its own elastic force or the driving force of the other driving member.

Wherein the sealing member can seal the pressure sensing channel 220 by its own elastic force, for example, in an embodiment, the sealing member is made of at least a part of a flexible elastic material, and seals the pressure sensing channel 220 by its own elastic force.

In yet other embodiments, the anti-overflow protector 200 may further include a drive member drivingly connected to the seal and driving the seal pressure sensing passageway 220. The driving member can adopt, but is not limited to, various structures such as an elastic member, a motor, an electromagnet and the like which can drive the sealing member to move.

Further, the sealing member is intended to block the pressure sensing channel 220 so as to prevent the interior of the user's chest from communicating with the outside air, and thus, the sealing member can seal any position of the pressure sensing channel 220, such as the second pressure sensing port 221, the third pressure sensing port 222, and other positions in the pressure sensing channel 220.

The sealing member may seal the second pressure detection port 221 and the third pressure detection port 222 from the outside of the pressure detection passage 220, or may seal from the inside of the pressure detection passage 220. For example, in one embodiment, a seal is disposed within the pressure sensing channel 220, while in other embodiments, the seal is disposed outside of the pressure sensing channel 220.

Taking the third pressure detecting interface 222 as an example, in one embodiment, the anti-overflow protector 200 further comprises a sealing assembly for sealing the third pressure detecting interface 222 when the anti-overflow protector 200 is disengaged from the negative pressure suction device 500.

Further, referring to fig. 8 and 9, the pressure detecting channel 220 has a mounting cavity 271, and the mounting cavity 271 communicates with the third pressure detecting port 222. The seal assembly includes a seal 261 and a resilient member 262. The sealing member 261 is movably disposed in the mounting cavity 271, and the elastic member 262 acts on the sealing member 261 and includes an elastic member 262 directly or indirectly connected to the sealing member 261. The elastic force of the elastic member 262 drives the sealing member 261 to seal the third pressure detection interface 222, that is, under the driving of the elastic member 262, the sealing member 261 is in a normally closed structure, and when the sealing member is not acted by an external force, the sealing member always seals the third pressure detection interface 222. When the anti-overflow protector 200 is connected to the pressure detection device 400, the interface on the pressure detection device 400 may be inserted into the third pressure detection interface 222, thereby opening the seal 261 and rendering the pressure detection channel 220 conductive.

Further, referring to fig. 8 and 9, in an embodiment, the sealing member 261 has a sealing portion 2611 and a connection portion 2612 connected to the sealing portion 2611, the sealing portion 2611 is disposed toward the third pressure detecting interface 222, and the elastic member 262 acts on the connection portion 2612 to drive the sealing portion 2611 to seal the third pressure detecting interface 222. If the elastic member 262 is a spring, it can be sleeved on the connection portion 2612.

Referring to fig. 7 to 9, in one embodiment, in order to form the installation cavity 271, a partition 272 is disposed in the negative pressure suction passage 210, and the partition 272 and the protector housing 240 enclose the installation cavity 271 isolated from the negative pressure suction passage 210. The second pressure detection port 221, the mounting chamber 271, and the third pressure detection port 222 are communicated through a pipe 275, thereby forming a pressure detection passage 220. To facilitate installation, the partition 272 has an opening to place the sealing member 261 and the elastic member 262 into the installation cavity 271. The opening is then sealed by a closure plug 273. Conduit 275 may abut a connector 274, and connector 274 extends through closure plug 273 into mounting cavity 271. The connector 274 has a through hole so that the passage of the conduit 275 communicates with the mounting chamber 271.

In one embodiment, the sealing portion 2611 is made of a flexible material, so that it can be better attached to the third pressure detecting interface 222. And the connection part 2612 can adopt a material with stronger rigidity, thereby reducing the deformation of the connection part and better transmitting elastic force.

In another aspect, an embodiment of the present application further provides a collection container for thoracic drainage, which may adopt the structure of the collection container 100 as shown in any of the above embodiments. The collection container can be used as a part of a thoracic drainage device (such as a negative pressure suction type) and can also be independently used for drainage in a gravity suction mode. That is, the collection container can be sold and used either together as part of a chest drainage device or separately. The collecting container has two application modes, and a user can flexibly select how to use the collecting container according to the requirement.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.

Claims (17)

1. The anti-overflow protector of the thoracic drainage device is characterized by comprising a protector shell, wherein a negative pressure suction channel, a pressure detection channel and an anti-overflow filter core are arranged in the protector shell, the negative pressure suction channel and the pressure detection channel are mutually separated, and the negative pressure suction channel is detachably communicated with a water seal cavity of a collection container; the pressure detection channel is used for being communicated with the liquid collection cavity of the collection container; the anti-overflow filter element is arranged in the negative pressure suction channel and the pressure detection channel to prevent liquid overflow.

2. The anti-overflow protector of claim 1 wherein the negative pressure suction channel has a second air flow interface for removably communicating with a collection container and a third air flow interface for communicating with a negative pressure suction device to suction air within the collection container; the pressure detection channel is provided with a second pressure detection interface and a third pressure detection interface, the second pressure detection interface is used for being detachably communicated with the collection container, and the third pressure detection interface is used for being communicated with a pressure detection device so as to detect the pressure in the collection container; the anti-overflow filter core includes first filter core and second filter core, first filter core is located in the negative pressure suction passageway for prevent that liquid from flowing to negative pressure suction device, the second filter core is located in the pressure measurement passageway, be used for preventing liquid flow to pressure measurement device.

3. The anti-overflow protector of claim 2 wherein said first filter element is a cylindrical structure having an opening disposed toward an end at which said second gas flow connection is located.

4. The anti-overflow protector of claim 3 wherein the mouth wall of the opening of the first cartridge sealingly abuts the mouth wall of the second gas flow interface.

5. The anti-overflow protector of claim 2 further comprising a seal assembly for sealing the third pressure detecting interface when the anti-overflow protector is disengaged from the negative pressure suction device.

6. The anti-overflow protector of claim 5 wherein the pressure sensing passageway has a mounting cavity that communicates with the third pressure sensing port, and wherein the seal assembly includes a seal member and a resilient member, the seal member being movably disposed within the mounting cavity, the resilient member acting on the seal member, the resilient force of the resilient member urging the seal member to seal the third pressure sensing port.

7. The anti-overflow protector of claim 6 wherein the seal has a sealing portion and a connecting portion connected to the sealing portion, the sealing portion being disposed toward the third pressure-sensing interface, the resilient member acting on the connecting portion to drive the sealing portion to seal the third pressure-sensing interface.

8. The anti-overflow protector of the thoracic drainage device is characterized by comprising a pressure detection channel, an anti-overflow filter element and a sealing piece, wherein the pressure detection channel is provided with a second pressure detection interface and a third pressure detection interface, the second pressure detection interface is used for being communicated with a collection container, and the third pressure detection interface is used for being communicated with a pressure detection device in a detachable mode so as to detect the pressure in the collection container; the anti-overflow filter element comprises a second filter element which is arranged in the pressure detection channel and used for preventing liquid from flowing to the pressure detection device; when the anti-overflow protector is separated from the negative pressure suction device, the sealing piece seals the pressure detection channel under the self elasticity or the driving force of the driving piece.

9. The anti-overflow protector of claim 8 wherein said seal is disposed within said pressure sensing channel.

10. The anti-overflow protector of claim 8 further comprising a drive member drivingly connected to the seal member and driving the seal member to seal the pressure sensing passageway.

11. The anti-overflow protector of claim 8 wherein the drive member comprises a resilient member, the pressure sensing passageway has a mounting cavity, the mounting cavity is in communication with the third pressure sensing port, the sealing member is movably disposed in the mounting cavity, the resilient member acts on the sealing member, and the resilient force of the resilient member urges the sealing member to seal the third pressure sensing port.

12. The anti-overflow protector of claim 11 wherein the seal has a sealing portion and a connecting portion connected to the sealing portion, the sealing portion being disposed toward the third pressure-sensing interface, the resilient member acting on the connecting portion to drive the sealing portion to seal the third pressure-sensing interface.

13. The anti-overflow protector of claim 8 wherein said seal is at least partially formed of a flexible, resilient material that seals said pressure sensing passageway by its own resilience.

14. The anti-overflow protector of any of claims 8-13 wherein the anti-overflow protector comprises a protector housing, the negative pressure suction channel and the pressure detection channel are both located within the protector housing, and the negative pressure suction channel and the pressure detection channel are spaced apart from each other.

15. A chest drainage device, comprising:

the collecting container is provided with a liquid collecting cavity for collecting liquid, a water sealing cavity for water sealing, a liquid inlet interface for liquid to enter the liquid collecting cavity, a first gas circulation interface and a first pressure detection interface, the liquid collecting cavity is communicated with the water sealing cavity, the liquid inlet interface and the first pressure detection interface are both communicated with the liquid collecting cavity, and the first gas circulation interface is communicated with the water sealing cavity;

and an anti-overflow protector, which is two separate parts from the collection container, wherein the anti-overflow protector is the anti-overflow protector according to any one of claims 1 to 14.

16. The utility model provides a collection container for thorax drainage, a serial communication port, includes container body, have the collection liquid chamber that is used for collecting liquid in the container body, be used for carrying out the water seal chamber of water seal, be used for liquid to get into the feed liquor interface in collection liquid chamber, be used for the suction gaseous first gaseous circulation interface in collection liquid chamber with be used for detecting the first pressure detection interface of collection liquid intracavity pressure, collection liquid chamber and water seal chamber intercommunication, feed liquor interface and first pressure detection interface all with collection liquid chamber intercommunication, first gaseous circulation interface with water seal chamber intercommunication.

17. The collection container of claim 16, wherein the first pressure detection interface has a flexible blocking portion having an insertion channel into which the second pressure detection interface of the anti-overflow protector can be inserted.

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