CN219501665U - Medical negative pressure drainage connecting cover and drainage bag - Google Patents
Medical negative pressure drainage connecting cover and drainage bag Download PDFInfo
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- CN219501665U CN219501665U CN202320366985.4U CN202320366985U CN219501665U CN 219501665 U CN219501665 U CN 219501665U CN 202320366985 U CN202320366985 U CN 202320366985U CN 219501665 U CN219501665 U CN 219501665U
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Abstract
The utility model discloses a medical negative pressure drainage connecting cover and a drainage bag, and relates to the technical field of medical instruments; the medical negative pressure drainage connecting cover comprises a cover body for sealing the opening end of the bag body, wherein the cover body is provided with an absorption pipe connecting channel, a drainage pipe connecting channel and a pressure relief channel, the absorption pipe connecting channel, the drainage pipe connecting channel and the pressure relief channel are all penetrated through the cover body, the outer end of the pressure relief channel is connected with a pressure relief valve, the pressure relief valve can be opened under a set opening pressure difference, if the drainage pipe is blocked, the negative pressure in the bag body is increased, and when the pressure difference between the pressure in the bag body and the atmospheric pressure reaches the opening pressure of the pressure relief valve, the pressure relief valve is opened, so that the bag body is connected with the atmosphere, further extrusion of waste liquid in the bag body is avoided, the waste liquid is prevented from entering a negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted. The drainage bag comprises a bag body, wherein the bag opening of the bag body is sealed through the medical negative pressure drainage connecting cover.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a medical negative pressure drainage connecting cover and a drainage bag.
Background
In clinical treatment, the negative pressure suction system of the operating room is always in a working state so as to continuously provide negative pressure, thereby being convenient for sucking and guiding the filth such as bone fragments generated in the operation into a drainage bag or a drainage bottle. According to the hospital feel requirement, the drainage container is required to be disposable, if a hard glass vessel is adopted as a disposable liquid storage device, the cost is obviously increased, so that the disposable drainage liquid storage bag made of flexible and light materials is widely applied to clinical treatment.
However, in clinical treatment, most of the attention of medical staff is focused on the patient, especially in the endoscopic surgery process, the suction head and the flushing tube are in the same tube, the suction valve is often required to be closed to complete other surgical steps in the operation, the central negative pressure system of the operating room continuously works, at this time, the air in the drainage bag is easily evacuated due to no air inlet, so that the bag body is contracted and liquid is extruded, the waste liquid is sucked into the central negative pressure pipeline and equipment, the whole pipeline is polluted, and the cleaning cost of the negative pressure pipeline is extremely high.
Disclosure of Invention
Aiming at the technical problem that the waste liquid in the existing drainage bag is at risk of being sucked into a negative pressure pipeline; the utility model provides a medical negative pressure drainage connecting cover and a drainage bag, which can be used for communicating the drainage bag with the atmosphere when the negative pressure value in the drainage bag reaches a set value, so that waste liquid is prevented from entering a negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted.
The utility model is realized by the following technical scheme:
in a first aspect, the utility model provides a medical negative pressure drainage connection cover, which comprises a cover body for sealing the opening end of a bag body, wherein the cover body is provided with a suction pipe connection channel, a drainage pipe connection channel and a pressure relief channel, the suction pipe connection channel, the drainage pipe connection channel and the pressure relief channel are all arranged through the cover body, the outer end of the pressure relief channel is connected with a pressure relief valve, and the pressure relief valve can be opened under a set opening pressure difference.
The medical negative pressure drainage connecting cover provided by the utility model is characterized in that the cover body is provided with a suction pipe connecting channel penetrating through the bag body, a drainage pipe connecting channel and a pressure relief channel, and the outer end of the pressure relief channel is connected with a pressure relief valve.
When the drainage bag is used, the cover body is connected to the bag opening of the bag body to seal the bag body through the cover body, the drainage tube is connected with the drainage tube connecting channel, the suction tube is connected with the suction tube connecting channel, and the negative pressure system provides negative pressure for the bag body through the suction tube, so that waste liquid generated in operation enters the drainage bag through the drainage tube.
In the drainage process, if the drainage tube is blocked, negative pressure in the bag body is increased, and when the pressure difference between the pressure in the bag body and the atmospheric pressure reaches the opening pressure of the pressure release valve, the pressure release valve is opened, so that the bag body is connected with the atmosphere, and further extrusion of waste liquid in the bag body is avoided.
Therefore, the medical negative pressure drainage connecting cover provided by the utility model can be used for communicating the drainage bag with the atmosphere when the negative pressure value in the drainage bag reaches a set value, so that waste liquid is prevented from entering the negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted.
In an alternative embodiment, the opening pressure difference is 60-80 kPa, so that the negative pressure maintained in the drainage bag meets the drainage requirements of most procedures.
In an alternative embodiment, the opening differential pressure is 65 to 75kPa.
In an alternative embodiment, the pressure release valve includes the sealing membrane that can seal the pressure release passageway, the sealing membrane breaks under the pressure differential that opens, because the junction cover is disposable, adopts breakable sealing membrane as the pressure sensing actuating element of pressure release valve, not only can avoid the pressure release valve to reuse, and for adopting the backpressure valve of other structures, the cost is lower moreover.
In an alternative embodiment, the sealing membrane is provided with a plurality of frangible indentations in the middle to ensure that the seal is capable of breaking at a set pressure differential.
In an alternative embodiment, the frangible indentation has a depth of 60% to 70% of the sealing film thickness.
In an alternative embodiment, the number of said frangible indentations is 3 and one end of three of said frangible indentations are connected together.
In an alternative embodiment, three of said frangible indentations are distributed in a "Y" shape.
In an alternative embodiment, the flexible rubber material of the sealing film makes the sealing film flexible enough to avoid the sealing film from breaking during assembly.
In a second aspect, the utility model provides a drainage bag, which comprises a bag body, wherein the bag opening of the bag body is sealed through the medical negative pressure drainage connecting cover.
According to the drainage bag, the medical negative pressure drainage connecting cover is connected to the bag opening in a sealing mode, when the negative pressure value in the bag body reaches a set value, the drainage bag is communicated with the atmosphere, so that waste liquid is prevented from entering the negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. according to the medical negative pressure drainage connecting cover, the suction pipe connecting channel, the drainage pipe connecting channel and the pressure release channel which penetrate through the bag body are arranged on the cover body, the pressure release valve is connected to the outer end of the pressure release channel, in the drainage process, if the drainage pipe is blocked, negative pressure in the bag body is increased, when the pressure difference between the pressure in the bag body and the atmospheric pressure reaches the opening pressure of the pressure release valve, the pressure release valve is opened, the bag body is connected with the atmosphere, so that the bag body is prevented from further extruding waste liquid in the bag body, the waste liquid is prevented from entering the negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted.
2. According to the medical negative pressure drainage connecting cover, the drainage bag is connected with the medical negative pressure drainage connecting cover in a sealing mode, when the negative pressure value in the bag body reaches a set value, the drainage bag is communicated with the atmosphere, so that waste liquid is prevented from entering a negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
In the drawings:
FIG. 1 is a schematic view of a drainage bag according to an embodiment of the present utility model;
fig. 2 is a schematic top view of a negative pressure valve according to an embodiment of the utility model.
In the drawings, the reference numerals and corresponding part names:
1-bag body, 2-cover body, 3-suction tube connecting channel, 4-drainage tube connecting channel, 5-pressure release channel, 6-pressure release valve, 7-sealing film and 8-breakable indentation.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
In combination with fig. 1, this embodiment provides a medical negative pressure drainage connecting cover, including the lid 2 that is used for sealed bag body 1 open end, lid 2 is provided with suction tube connecting channel 3, drainage tube connecting channel 4 and pressure release passageway 5, suction tube connecting channel 3 with drainage tube connecting channel 4 with pressure release passageway 5 all run through lid 2 sets up, pressure release passageway 5 outer end is connected with relief valve 6, relief valve 6 can be opened under the opening differential pressure of setting for.
Specifically, the opening pressure difference is 60-80 kPa, so that the negative pressure maintained in the drainage bag meets the drainage requirements of most operations.
Preferably, the opening pressure difference is 65-75 kPa.
Referring to fig. 2, the relief valve 6 may be a diaphragm back pressure valve, a spring back pressure valve, or the like, which is only required to be opened at its opening pressure. In this embodiment, the pressure relief valve 6 comprises a sealing membrane 7 capable of sealing the pressure relief channel 5, the sealing membrane 7 breaking under the opening pressure difference. Because the connecting cover is a disposable article, the breakable sealing film 7 is adopted as a pressure sensing executing element of the pressure relief valve 6, the pressure relief valve 6 can be prevented from being reused, and the cost is lower compared with a backpressure valve adopting other structures.
On this basis, the sealing membrane 7 is provided with a plurality of frangible indentations 8 in the middle to ensure that the seal is able to rupture at a set pressure differential.
Specifically, the depth of the frangible indentation 8 is 60% to 70% of the thickness of the sealing film 7.
Typically, the number of said frangible indentations 8 is 3, and one end of three of said frangible indentations 8 are connected together.
Wherein, three said frangible indentations 8 are distributed in a Y shape.
In addition, the sealing film 7 is made of flexible rubber, so that the sealing film 7 has enough flexibility to avoid the sealing film 7 from being broken during assembly.
When the medical negative pressure drainage connection cover provided by the embodiment is used, the cover body 2 is connected to the bag opening of the bag body 1 to seal the bag body 1 through the cover body 2 (the bag body 1 can be replaced by a bottle body to form a drainage bottle through the bottle body and the cover body 2), meanwhile, the drainage tube is connected with the drainage tube connection channel 4, the suction tube is connected with the suction tube connection channel 3, and the negative pressure system provides negative pressure for the bag body 1 through the suction tube, so that waste liquid generated in operation enters into the drainage bag through the drainage tube.
In the drainage process, if the drainage tube is blocked, negative pressure in the bag body 1 is increased, and when the pressure difference between the pressure in the bag body 1 and the atmospheric pressure reaches the opening pressure of the pressure release valve 6, the pressure release valve 6 is opened, so that the bag body 1 is connected with the atmosphere, and further extrusion of waste liquid in the bag body 1 is avoided.
Meanwhile, when the drainage bag or the drainage bottle is about to be filled, the residual air in the space is less, the internal pressure of the drainage bag or the drainage bottle can be rapidly reduced in a short time, so that the pressure difference between the internal pressure and the atmospheric pressure is rapidly increased, the opening pressure difference of the pressure release valve 6 is broken, the sealing film 7 is broken, and the internal space of the drainage bag or the drainage bottle is communicated with the external atmospheric pressure, so that the pollution of a negative pressure suction system caused by transition suction is prevented.
Therefore, the medical negative pressure drainage connection cover provided by the embodiment can be used for communicating the drainage bag with the atmosphere when the negative pressure value in the drainage bag reaches a set value, so that waste liquid is prevented from entering the negative pressure pipeline system, and the negative pressure pipeline system is prevented from being polluted.
Example 2
With reference to fig. 1, this embodiment provides a drainage bag, including a bag body 1, wherein the bag opening of the bag body 1 is sealed by the medical negative pressure drainage connection cover described in embodiment 1.
Specifically, the cross section size of the cover body 2 is adapted to the size of the bag opening of the bag body 1, after the cover body 2 is assembled to the bag body 1, the bag opening of the bag body 1 can be sealed, and the bag opening of the bag body 1 is opened, so that the bag body 1 is prevented from being directly flattened under the action of negative pressure, and the bag body 1 can work normally under certain negative pressure.
The drainage bag that this embodiment provided, at the medical negative pressure drainage connecting cover of sack sealing connection foretell, can be when the negative pressure value reaches a set value in the bag body 1, communicate drainage bag and atmosphere to avoid the waste liquid to enter into in the negative pressure pipe-line system, prevent that negative pressure pipe-line system from being polluted.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The utility model provides a medical negative pressure drainage connecting cover, its characterized in that, including lid (2) that are used for sealed bag body (1) open end, lid (2) are provided with suction tube connecting channel (3), drainage tube connecting channel (4) and pressure release passageway (5), suction tube connecting channel (3) with drainage tube connecting channel (4) with pressure release passageway (5) all run through lid (2) set up, pressure release passageway (5) outer end is connected with relief valve (6), relief valve (6) can be opened under the opening differential pressure of settlement.
2. The medical negative pressure drainage connection cap of claim 1, wherein the opening pressure difference is 60-80 kPa.
3. The medical negative pressure drainage connection cap of claim 2, wherein the opening pressure difference is 65-75 kPa.
4. Medical negative pressure drainage connection cap according to claim 1, characterized in that the pressure relief valve (6) comprises a sealing membrane (7) capable of sealing the pressure relief channel (5), the sealing membrane (7) breaking under the opening pressure difference.
5. The medical negative pressure drainage connection cap according to claim 4, wherein a plurality of frangible indentations (8) are provided in the middle of the sealing membrane (7).
6. The medical negative pressure drainage connection cap according to claim 5, characterized in that the depth of the frangible impression (8) is 60-70% of the thickness of the sealing membrane (7).
7. The medical negative pressure drainage connection cap according to claim 5, wherein the number of the frangible indentations (8) is 3, and one ends of three of the frangible indentations (8) are connected together.
8. Medical negative pressure drainage connection cap according to claim 7, characterized in that three said frangible indentations (8) are distributed in a "Y" shape.
9. Medical negative pressure drainage connection cap according to any of claims 4 to 8, characterized in that the sealing membrane (7) is of flexible rubber.
10. A drainage bag, comprising a bag body (1), characterized in that the bag mouth of the bag body (1) is sealed by the medical negative pressure drainage connecting cover as set forth in any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320366985.4U CN219501665U (en) | 2023-03-02 | 2023-03-02 | Medical negative pressure drainage connecting cover and drainage bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320366985.4U CN219501665U (en) | 2023-03-02 | 2023-03-02 | Medical negative pressure drainage connecting cover and drainage bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219501665U true CN219501665U (en) | 2023-08-11 |
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ID=87532393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320366985.4U Active CN219501665U (en) | 2023-03-02 | 2023-03-02 | Medical negative pressure drainage connecting cover and drainage bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219501665U (en) |
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2023
- 2023-03-02 CN CN202320366985.4U patent/CN219501665U/en active Active
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