CN117838959A - Electric negative pressure drainage device - Google Patents
Electric negative pressure drainage device Download PDFInfo
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- CN117838959A CN117838959A CN202410262952.4A CN202410262952A CN117838959A CN 117838959 A CN117838959 A CN 117838959A CN 202410262952 A CN202410262952 A CN 202410262952A CN 117838959 A CN117838959 A CN 117838959A
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- drainage
- negative pressure
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- pump body
- drainage container
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- 230000001502 supplementing effect Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000013589 supplement Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 206010052428 Wound Diseases 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 206010006187 Breast cancer Diseases 0.000 description 1
- 208000026310 Breast neoplasm Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002682 general surgery Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000779 thoracic wall Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
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Abstract
The invention relates to the field of medical equipment, in particular to an electric negative pressure drainage device, which comprises a drainage container for containing drainage liquid, an inlet device for drainage and connected with the drainage container, a pump body for supplementing negative pressure for the drainage container, a control device electrically connected with the pump body and used for controlling the operation of the pump body, and further comprises: the drainage device comprises a first pipe body connected with the drainage container and the pump body, and a second pipe body connected with the drainage container and a pressure sensor in the control device, wherein the drainage container comprises a container consisting of one or more cavities, and the drainage container is in a closed state when in operation. The pressure sensor in the control device skillfully monitors the pressure in the cavity in real time, and the pump body is automatically controlled in real time to provide proper negative pressure for the drainage container, so that the problem that the wound of a patient is not closed tightly or the wound is not completely drained after operation, which is caused by the fact that the negative pressure is not enough and can not be solved in time due to the fact that the negative pressure drainage device with preset negative pressure is frequently used in clinic, is solved.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an electric negative pressure drainage device.
Background
The existing negative pressure drainage bottle is widely used for nursing after various surgical operations, including various acute and chronic wounds used in departments such as trauma surgery, orthopedics, general surgery, burn department and the like, has good curative effect, but the existing negative pressure drainage instrument still has larger defects and shortages:
firstly, the existing negative pressure drainage bottles are all preset negative pressure, negative pressure in the bottles cannot be regulated, negative pressure in the bottles is limited, and the phenomenon of insufficient negative pressure easily occurs in clinical use, so that the phenomenon of unsmooth wound closure or incomplete drainage is directly caused, and the postoperative wound healing time is prolonged; moreover, medical staff is forced to put more effort to determine the service condition of the drainage bottle, and waste of medical manpower resources is increased.
Secondly, to the patient that needs many places drainage, for example the patient that needs nursing after the breast cancer operation, need use a plurality of drainage bottles simultaneously to drain to the wound etc. that suffer from side chest wall and armpit, both increased the inconvenience that the patient carried a plurality of drainage bottles simultaneously, also increased medical staff frequently to change patient's drainage bottle's loaded down with trivial details.
Disclosure of Invention
One of the objectives of the present invention is to provide an electric negative pressure drainage device, so as to solve at least one technical problem mentioned in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an electronic negative pressure drainage device, includes the drainage container that is used for holding drainage liquid, is used for drainage and the entry device who is connected with the drainage container, is used for supplementing the pump body of negative pressure for the drainage container, is connected with the pump body electricity and is used for controlling the controlling means of pump body operation, still includes: the drainage container comprises a container formed by one or more cavities, the drainage container is in a closed state when in operation, the pressure sensor automatically monitors the negative pressure in the drainage container in real time when in operation, and the control device controls the pump body to supplement the negative pressure to the drainage container or stop supplementing the negative pressure based on the monitored negative pressure.
Preferably, the pump body and the control device are integrated in a device compartment of the electric negative pressure drainage device, which is arranged above the drainage container, and the inlet device is arranged above the device compartment and connected with the drainage container via the device compartment.
Preferably, the inlet device comprises a first connector for connecting one end with the drain tube and the other end with the first end of the catheter, the second end of the catheter being connected with a second connector for securing the catheter to the equipment compartment.
Preferably, the number of the conduits or/and the first connector and the second connector is equal to the number of the cavities in the drainage container.
Preferably, a clamp for controlling the on-off of the guide pipes is also arranged on each guide pipe.
Preferably, the first pipe body is provided with a one-way valve for preventing air outside the electric negative pressure drainage device from entering the drainage container through the pump body.
Preferably, the electric negative pressure drainage device is further provided with a hanging device for hanging the drainage container.
Compared with an unadjustable preset negative pressure drainage device used conventionally in the prior art, the electric negative pressure drainage device provided by the application can effectively realize the following technical effects: the utility model provides an innovatively carried out in negative pressure drainage field, ingenious pressure sensor through controlling means carries out real-time supervision to the pressure in the cavity automatically, thereby automatic and real-time control pump body supplements suitable negative pressure to the drainage container, effectively solve the negative pressure drainage device that uses the preset negative pressure in clinic often appear because of not in time finding the negative pressure not enough, lead to patient wound to close untight or the problem that the postoperative wound that the drainage is not thoroughly aroused is not healed for a long time, also can effectively solve practice traditional chinese medical science nursing staff even can in time find the negative pressure not enough but can not take effective measure to supplement negative pressure.
Moreover, the structure is simplified compared with the prior art while the technical effect is achieved, such as the pressure indicating device such as a pressure indicating disc is not required to be introduced, psychological burden of a patient is reduced, workload of medical workers for frequently observing the pressure index is reduced, and the practical effect is outstanding.
In addition, for the medical situation that a plurality of drainage bottles need to be equipped with simultaneously in the prior art of many places drainage, this application sets up the container that contains a plurality of cavitys ingeniously, can confirm the quantity of required cavity according to patient's drainage demand in practice, effectively alleviateed medical staff and need in time observe the in service behavior of a plurality of drainage bottles and frequently change a plurality of drainage bottles and the burden that leads to.
Moreover, through long-term observation of medical operation practice, in order to be more convenient in the operation process of medical staff, the applicant integrates a pump body and a control device of the electric negative pressure drainage device into a device cabin of the electric negative pressure drainage device, and the device cabin is in closed fit with a drainage container during working, so that on one hand, medical staff can conveniently and directly consider the device cabin as an operation table, and therefore, the electric negative pressure drainage device can be conveniently opened or closed; on the other hand, the whole integration of the equipment bin also improves the safety and the service life of the equipment in the use process, meets the high-standard medical and health requirements required to be met in the medical operation process, and ensures the safety of patients in the treatment process.
Moreover, in order to better match the demands of multiple drainage of patients, the number of the electric negative pressure drainage devices in the catheter, the first connector and the second connector is equal to the number of the cavities in the drainage container. And to the patient in the treatment process of many places drainage if meet the condition that needs reduce or increase drainage department quantity, this application still ingenious has set up the anchor clamps of control pipe break-make on every pipe, only need with unnecessary pipe clamp with clamp or release can, the operation is very simple.
Moreover, for the security in the further promotion drainage operation in-process, this application still has set up the check valve that prevents the outside air of electronic negative pressure drainage device and get into the drainage container through the pump body on the first body of connecting drainage container and pump body.
Moreover, considering the actual demand of patient in the process of seeking medical doctor, this application is provided with in electric negative pressure drainage device and is used for hanging the device of getting that gets of drainage container to medical staff or patient hang and get electric negative pressure drainage device.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
fig. 1 is a schematic view of an overall appearance structure of an electric negative pressure drainage device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the equipment room in the electric negative pressure drainage device according to one embodiment of the present application;
the same or similar reference numbers in the drawings refer to the same or similar structures.
Reference numerals: 1-a drainage container; 2-equipment bin; 21-a pump body; 22-control means; 23-a first tube; 24-a second tube; 25-a one-way valve; 3-switching; 4-a second linker; 5-a catheter; 6-clamping; 7-a first linker; 8-hooking; 9-hanging the belt.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram illustrating an overall appearance structure of an electric negative pressure drainage device according to an embodiment of the present disclosure; fig. 2 is a schematic diagram of the structure of the equipment bin 2 in the electric negative pressure drainage device according to one embodiment of the present application.
According to fig. 1 and 2, the electronic negative pressure drainage device of this application, including being used for holding drainage container 1 of drainage liquid, be used for drainage and the entry device who is connected with drainage container, be used for supplementing the pump body 21 of negative pressure for drainage container 1, be connected with the pump body 21 electricity and be used for controlling the controlling means 22 of pump body 21 operation still includes: the drainage container 1 comprises a container consisting of one or more cavities, the drainage container 1 is in a closed state when in operation, the pressure sensor automatically monitors the negative pressure in the drainage container in real time when in operation, and the control device controls the pump body to supplement the negative pressure to the drainage container or stop supplementing the negative pressure based on the real-time monitored negative pressure.
The inlet device for drainage and connection with the drainage container in the present application mainly refers to a combination of connecting channels or connecting pipes for introducing gas and liquid extracted from one or more parts of a human body into the drainage container 1, where the channels or pipes are connected or/and fixed by joints, etc., which will be described in detail below with reference to fig. 2, and is not unfolded here. The first pipe body 23 connecting the drainage container 1 and the pump body 21, and the second pipe body 24 connecting the drainage container and the pressure sensor in the control device, where the two pipe bodies can be made of materials such as air pipes commonly used in the existing medical field, the first pipe body 23 is mainly used as a channel for supplementing negative pressure to the drainage container 1 by the pump body 21, the second pipe body 24 is mainly used as a channel for detecting the pressure state in the drainage container 1 by the pressure sensor, and the connection mode of the two pipe bodies can be implemented by any mode suitable for the present application in the prior art, which is not repeated here.
In this application, the drainage container 1 may be set into one cavity or multiple cavities according to the drainage requirement of the patient. In one example, in order to reduce the burden of assembling the container by the medical staff, and also in order to ensure the safety and sanitation of patients, the cavity or cavities can be preset and cannot be changed before use, for example, the cavity or cavities are fixedly arranged when leaving a factory, and then the medical staff can select the drainage container with the corresponding number of cavities according to the drainage requirement of the patients; in another example, the number of the cavities can be set to be freely variable, for example, a partition board which can be flexibly moved or taken out is arranged in the drainage container 1 (the partition board is arranged in the drainage container as shown in fig. 1), so that the drainage container 1 is divided into a plurality of cavities as required, and the drainage container is convenient to use more flexibly under the condition of meeting sanitary conditions.
This application has effectively alleviateed patient and has carried the burden of a plurality of drainage bottle drainage in the course of treatment based on the design of multi-chamber, only uses a drainage container can easily realize many drainage, and this application uses medical personnel can be according to the drainage volume of each cavity of the exudation volume rational distribution of patient wound moreover, has effectively avoided managing a plurality of drainage bottles' dilemma.
The control device 22 for controlling the operation of the pump body 21 may include an operation button for starting or stopping the operation of the electric negative pressure drainage device, and the operation button may be placed at any position convenient for a user to operate the electric negative pressure drainage device. The control device 22 may be any device suitable for the present application in the prior art, for example, at least includes a main control board, a battery, and other basic components.
Preferably, through the long-term observation to medical operation practice, this application is more convenient for medical staff operation in-process, with the pump body and the controlling means integration of electronic negative pressure drainage device in electronic negative pressure drainage device's equipment storehouse, equipment storehouse seals the cooperation with the drainage container at the during operation, thereby the medical staff of being convenient for directly regard as an operation panel with equipment storehouse to operate electronic negative pressure drainage device's opening or closing very conveniently on the one hand, on the other hand the whole integration of equipment storehouse has also promoted the security and the life in the equipment use, has satisfied the medical health requirement of the high standard that need reach in the medical operation in-process simultaneously, ensures patient's safety in the treatment.
With continued reference to fig. 1 and 2, the pump body 21 and the control device 22 are integrated in a device housing 2 of the electric negative pressure drainage device, the device housing 2 is disposed above the drainage container 1, and the inlet device may be disposed above the device housing 2 or at another suitable position and connected to the drainage container 1 via the device housing 2.
Specifically, referring to fig. 2, the equipment cabinet 2 may be, for example, a thick closed box in which components such as a pump body 21, a control device 22, and connection wires are disposed. The drainage container 1 can be matched with the equipment bin 2 in a clamping, buckling or integrally connecting mode, so that the drainage container 1 of the electric negative pressure drainage device is in a closed state under the working condition.
Preferably, please continue to refer to fig. 1, the inlet device of the present application is described in detail below. The inlet means may comprise a first connector 7 for connecting at one end to the drain and at the other end to a first end of the conduit 5, a second end of the conduit 5 being connected to a second connector 4, the second connector 4 being for securing the conduit 5 to the equipment compartment 2. The first end of the conduit 5 here refers to the end in fig. 1 which is in contact with the first joint 7; the second end refers to the end in contact with the second connector 4 fixed on the equipment bin 2 in fig. 1, and in order to avoid confusion, the first end and the second end are used for distinguishing.
Specifically, the first connector 7 can be externally connected with other drainage tubes, and the number of the first connectors 7 is preferably equal to that of the cavities in the drainage container, so that drainage can be simultaneously carried out on multiple parts of a human body. Similarly, the number of the ducts 5 connected to the first connector 7 and the number of the second connectors 4 connected to the ducts 5 are preferably equal to the number of the cavities in the drainage container 1. Therefore, each joint and each catheter correspond to the corresponding cavity in the drainage container 1 to form a drainage environment which is relatively independent and is carried out simultaneously, and the drainage device is obviously superior to the dilemma that a patient carries a plurality of drainage bottles to carry out multi-place drainage in the prior art. Wherein, the first joint 7 can be realized by adopting the existing joint capable of being connected with the drainage tube, the second joint 4 can be realized by adopting the existing rotary joint capable of being rotationally fixed, and the catheter 5 is preferably realized by adopting a soft flexible tube which is relatively soft and bendable in the medical field.
Preferably, a clamp 6 for controlling the on-off of the catheter 5 is also arranged on each catheter 5, and the clamp 6 comprises a Robert clamp, for example.
Preferably, referring to fig. 2, in order to improve the safety of the drainage container 1 during use, the first pipe body 23 is provided with a one-way valve 25 for preventing air outside the electric negative pressure drainage device from entering the drainage container 1 through the pump body 21. The check valve 25 can be implemented by using a control valve capable of controlling unidirectional on-off.
Preferably, the electric negative pressure drainage device is further provided with a hanging device for hanging the drainage container, and the hanging device comprises a hanging hook 8 or a hanging belt 9 shown in fig. 1, so that medical staff or patients can hang the electric negative pressure drainage device conveniently.
In one example, the working principle of the electric negative pressure drainage device is as follows: connecting an external drainage tube to an electric negative pressure drainage device through a first connector 7, starting a switch 3 of a control device 22, starting to extract corresponding gas and liquid into the drainage container 1 from one or more parts of a human body, monitoring the negative pressure value in the drainage container 1 in real time through a second tube 24 by a pressure sensor in the control device 22 in the extraction process, and providing power for the pump body 21 by the control device 22 if the monitored negative pressure value is lower than or equal to a negative pressure minimum threshold preset by the control device 22, so that the pump body 21 operates to supplement negative pressure into the drainage container 1; if the monitored negative pressure value is higher than the negative pressure maximum threshold value preset by the control device 22, the control device 22 stops supplying power to the pump body 21, so that the pump body 21 stops running, and the replenishment of the negative pressure in the drainage bottle is suspended. Therefore, compared with the prior art, the negative pressure supplementing device has the advantages that the defect that negative pressure cannot be timely supplemented is obviously overcome, the negative pressure supplementing device can realize the real-time supplement of the negative pressure, and the problems that the drainage effect is poor due to insufficient negative pressure clinically are effectively solved.
Preferably, in one embodiment, in order to better adjust the negative pressure value in the drainage container 1, an automatic or manual pressure relief device is further provided on the electric negative pressure drainage device, and the automatic or manual pressure relief device may include any device suitable for the application in the prior art, for example, including a pressure relief port (or an exhaust port) and a pressure relief valve matched with the pressure relief port, so as to meet the requirement of manual operation, and realize timely pressure relief.
It should be noted that the above examples are only preferred embodiments of the present invention, and all equivalent or obvious modifications of the embodiments described in the specification can be reasonably expected by those skilled in the art to achieve the object of the present invention, and are included in the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides an electronic negative pressure drainage device, its characterized in that, including the drainage container that is used for holding drainage liquid, be used for drainage and the entry device who is connected with the drainage container, be used for the pump body of drainage container supplementary negative pressure, be connected with the pump body electricity and be used for controlling the controlling means of pump body operation still includes: the drainage container comprises a container formed by one or more cavities, the drainage container is in a closed state when in operation, the pressure sensor automatically monitors the negative pressure in the drainage container in real time when in operation, and the control device controls the pump body to supplement the negative pressure to the drainage container or stop supplementing the negative pressure based on the monitored negative pressure.
2. The electric negative pressure drainage device according to claim 1, characterized in that the pump body and the control device are integrated in a device compartment of the electric negative pressure drainage device, which is placed above the drainage container, and the inlet device is arranged above the device compartment and connected with the drainage container via the device compartment.
3. The electric negative pressure drainage device according to claim 2, wherein the inlet device comprises a first connector for connecting one end with the drainage tube and the other end with the first end of the catheter, and wherein the second end of the catheter is connected with a second connector for securing the catheter to the equipment compartment.
4. The electric negative pressure drainage device according to claim 3, wherein the number of the guide pipes or/and the first connector and the second connector is equal to the number of the cavities in the drainage container.
5. The electric negative pressure drainage device according to claim 3, wherein a clamp for controlling the on-off of the catheters is further arranged on each catheter.
6. The electric negative pressure drainage device according to claim 1 or 2, wherein a one-way valve for preventing air outside the electric negative pressure drainage device from entering the drainage container through the pump body is arranged on the first pipe body.
7. The electric negative pressure drainage device according to claim 1 or 2, characterized in that the electric negative pressure drainage device is further provided with a hanging device for hanging the drainage container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410262952.4A CN117838959A (en) | 2024-03-08 | 2024-03-08 | Electric negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410262952.4A CN117838959A (en) | 2024-03-08 | 2024-03-08 | Electric negative pressure drainage device |
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| Publication Number | Publication Date |
|---|---|
| CN117838959A true CN117838959A (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410262952.4A Pending CN117838959A (en) | 2024-03-08 | 2024-03-08 | Electric negative pressure drainage device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204864253U (en) * | 2015-08-26 | 2015-12-16 | 西安交通大学第一附属医院 | Medical integrated form multipurpose negative pressure prevents that container is inhaled to drainage liquid against current |
| CN204890724U (en) * | 2015-07-31 | 2015-12-23 | 黄铭坷 | Portable electric negative pressure drainage device |
| CN209611828U (en) * | 2019-01-22 | 2019-11-12 | 陈栋 | A kind of Endocrine Disorders drainage device |
| CN110613866A (en) * | 2019-09-19 | 2019-12-27 | 丁伟 | Negative pressure drainage device capable of monitoring and adjusting pressure in bottle |
| CN215230764U (en) * | 2021-05-21 | 2021-12-21 | 天津怡美医疗器械有限公司 | Automatic negative pressure drainage device |
| US20220218891A1 (en) * | 2019-03-19 | 2022-07-14 | Jingrun (Shanghai) Medical Instruments Co., Ltd. | Negative pressure drainage and cleaning system for sutureless closed skin incisions |
| CN115634326A (en) * | 2022-09-15 | 2023-01-24 | 吉林省沃鸿医疗器械制造有限公司 | Electric negative pressure drainage bottle |
-
2024
- 2024-03-08 CN CN202410262952.4A patent/CN117838959A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204890724U (en) * | 2015-07-31 | 2015-12-23 | 黄铭坷 | Portable electric negative pressure drainage device |
| CN204864253U (en) * | 2015-08-26 | 2015-12-16 | 西安交通大学第一附属医院 | Medical integrated form multipurpose negative pressure prevents that container is inhaled to drainage liquid against current |
| CN209611828U (en) * | 2019-01-22 | 2019-11-12 | 陈栋 | A kind of Endocrine Disorders drainage device |
| US20220218891A1 (en) * | 2019-03-19 | 2022-07-14 | Jingrun (Shanghai) Medical Instruments Co., Ltd. | Negative pressure drainage and cleaning system for sutureless closed skin incisions |
| CN110613866A (en) * | 2019-09-19 | 2019-12-27 | 丁伟 | Negative pressure drainage device capable of monitoring and adjusting pressure in bottle |
| CN215230764U (en) * | 2021-05-21 | 2021-12-21 | 天津怡美医疗器械有限公司 | Automatic negative pressure drainage device |
| CN115634326A (en) * | 2022-09-15 | 2023-01-24 | 吉林省沃鸿医疗器械制造有限公司 | Electric negative pressure drainage bottle |
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