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CN109833531A - A kind of effusion discharging device for oncology nursing - Google Patents

A kind of effusion discharging device for oncology nursing Download PDF

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Publication number
CN109833531A
CN109833531A CN201910178606.7A CN201910178606A CN109833531A CN 109833531 A CN109833531 A CN 109833531A CN 201910178606 A CN201910178606 A CN 201910178606A CN 109833531 A CN109833531 A CN 109833531A
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CN
China
Prior art keywords
discharging device
hydrops
tube
connecting tube
effusion
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Pending
Application number
CN201910178606.7A
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Chinese (zh)
Inventor
梁桂英
田晓晓
冯桂青
许宗磊
许嘉乾
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Individual
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Individual
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Priority to CN201910178606.7A priority Critical patent/CN109833531A/en
Publication of CN109833531A publication Critical patent/CN109833531A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of effusion discharging device for oncology nursing, including effusion discharging device main body, handle is fixed on the left of the effusion discharging device body upper surface, the handle generally L-shaped structure, the inside of the effusion discharging device main body is equipped with hydrops collecting chamber, and the inside of the effusion discharging device main body above hydrops collecting chamber is equipped with plunger shaft and driving chamber.The present invention passes through the cooperation of drainage syringe needle, switch controller, drive motor, rotating wheel, connecting pin, motion bar, hinged seat, piston rod and sliding eye, piston plate can be made to carry out left and right piston motion in plunger shaft, quickly the tumour hydrops of patient's body can be emitted, it is time saving and energy saving, and whole device compact, easily operated use, the portability used is high, is suitable for promoting the use of.

Description

A kind of effusion discharging device for oncology nursing
Technical field
The present invention relates to field of medical technology more particularly to a kind of effusion discharging device for oncology nursing.
Background technique
In the clinic of oncology, the case where Chang Yuyou tumour hydrops, tumour can cause seroperitoneum, lead under pathological state When intraperitoneal amount of liquid being caused to be more than 200ml, referred to as ascites.When a large amount of ascites influence the breathing or patient's abdominal distension severe symptoms of patient And when being difficult to endure, it can take and put ascites treating, to mitigate symptom.
Traditional method is the rubber hose for being connected with standard puncture needle using one, by connected syringe, By the hydrops discharge in tumour.When specific operation, the air in syringe is discharged first, then by syringe and rubber hose Connection, tumour hydrops is extracted into syringe.This process needs are repeated, until tumour hydrops is completely drawn out.In this way It does not only time-consuming and laborious, also adds the pain of patient, low efficiency that is troublesome in poeration and extracting discharge to tumour hydrops.
For this purpose, a kind of effusion discharging device for oncology nursing proposed by the present invention.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of effusion discharging device for oncology nursing.
A kind of effusion discharging device for oncology nursing proposed by the present invention, including effusion discharging device main body, the product Handle, the handle generally L-shaped structure, the effusion discharging device are fixed on the left of liquid tapping equipment body upper surface The inside of main body is equipped with hydrops collecting chamber, and the inside of the effusion discharging device main body above hydrops collecting chamber is equipped with plunger shaft And driving chamber, and plunger shaft is located at the left side of driving chamber, and piston plate, the piston plate have been slidably and sealingly connected in the plunger shaft Right side be fixedly connected with piston rod, and the right end sliding of piston rod is through in driving chamber, is equipped with and is used in the driving chamber Piston rod is driven to carry out the driving mechanism of piston motion;
The left side of the effusion discharging device main body is equipped with tee tube, at two nozzles on the left of the tee tube on respectively It is fixedly connected with the first connecting tube and the second connecting tube, the right end of first connecting tube extends in plunger shaft, and described second The right end of connecting tube extends in hydrops collecting chamber, and the tee tube is connected by the first connecting tube with the inside of plunger shaft, The tee tube is connected by the second connecting tube with the inside of hydrops collecting chamber, fixed at the nozzle on the left of the tee tube to connect It is connected to third connecting tube, the left end of the third connecting tube is fixedly connected with hydrops discharging hose, and the hydrops discharging hose is remote One end from third connecting tube is equipped with drainage syringe needle;
The driving mechanism includes the drive motor being installed in driving chamber, fixed peace in the bottom interior wall of the driving chamber Equipped with bracket, and drive motor is fixedly mounted on bracket, and fixing sleeve is connected to rotating wheel on the output shaft of the drive motor, institute It states and is fixedly welded with connecting pin in rotating wheel, the rotating wheel is rotatably connected to motion bar by connecting pin, and the motion bar is remote One end and piston rod from connecting pin are rotatablely connected far from one end of piston plate;
The left bottom of the effusion discharging device main body is fixedly installed with liquid discharging tube, and liquid discharging tube and hydrops collecting chamber Inside is connected, and the liquid discharging tube is equipped with tapping valve.
Preferably, the inside of second connecting tube is equipped with the first check valve, and the inside of the third connecting tube is equipped with the Two check valves.
Preferably, the left side top inner wall of the hydrops collecting chamber is equipped with the first mounting hole, and the right side of third connecting tube End is through in the first mounting hole and seals and is fixedly mounted in the first mounting hole;The inner left wall of the plunger shaft is equipped with the Two mounting holes, the right end of first connecting tube are through in the second mounting hole and seal and be fixedly mounted in the second mounting hole.
Preferably, the right hand top inner wall of the plunger shaft is equipped with L shape gas vent, and the plunger shaft is vented by L shape Hole communicates with the outside world;The right side inner wall of the plunger shaft is equipped with sliding eye, and sliding eye is located at the lower section of L shape gas vent, institute Piston rod sliding is stated through sliding eye.
Preferably, the drive motor is fixed with mounting plate close to the side of bracket, and mounting plate is installed by bolt It is fixed on bracket.
Preferably, the rotating wheel is equipped with third mounting hole, and rotating wheel is fixedly attached to drive by third mounting hole On the output shaft of dynamic motor.
Preferably, the motion bar is equipped with rotation hole, and motion bar is set on connecting pin by rotation hole rotation, institute It states connecting pin and is fixed with limited block far from one end of rotating wheel;The left end of the piston rod is equipped with hinged seat, and piston rod is logical It crosses hinged seat and motion bar is rotatablely connected.
Preferably, one end of the handle is equipped with battery case, and battery is equipped in battery case, is set at the top of the handle There is switch controller, the output end of the battery is electrically connected with the input terminal of switch controller, the input of the drive motor End is electrically connected with the output end of switch controller.
The beneficial effects of the present invention are:
1, in the present invention, by drainage syringe needle, switch controller, drive motor, rotating wheel, connecting pin, motion bar, hinged The cooperation of seat, piston rod and sliding eye, can make piston plate carry out left and right piston motion in plunger shaft;When piston plate to the right When side is moved, the space of the plunger shaft on the left of piston plate becomes larger, and pressure reduces, and is in negative pressure state, and first is single It is opened to valve, the tumour hydrops of subsequent patient passes through drainage syringe needle, hydrops discharging hose, third connecting tube, tee tube and the The cooperation of one connecting tube, so that hydrops is emitted into the plunger shaft on the left of piston plate;When piston plate moves to the left, position The space of plunger shaft on the left of piston plate becomes smaller, and pressure becomes larger, the first closed check valve, while second in the second connecting tube Check valve is opened, and then the transmission by the hydrops in plunger shaft Jing Guo the first connecting tube, tee tube and the second connecting tube is emitted into In hydrops collecting chamber, by above-mentioned reciprocating operation, and then quickly the tumour hydrops of patient can be emitted, be saved Shi Shengli is suitable for promoting the use of.
2, in the present invention, whole device compact, easily operated use, by the way that handle is arranged, people are being operated with When directly hold handle, operated with convenient for people, improve the portability used.
3, in the present invention, the tumour hydrops of patient can be emitted into hydrops collecting chamber, when needing to pour out, is passed through The tapping valve on liquid discharging tube is opened, quickly the hydrops in hydrops collecting chamber can be released using liquid discharging tube, be easy to clear Reason is poured out.
In conclusion the present invention by drainage syringe needle, switch controller, drive motor, rotating wheel, connecting pin, motion bar, The cooperation of hinged seat, piston rod and sliding eye can make piston plate carry out left and right piston motion in plunger shaft, can be quick The tumour hydrops of patient's body is emitted, it is time saving and energy saving, and whole device compact, it is easily operated to make With portability is high, is suitable for promoting the use of.
Detailed description of the invention
Fig. 1 is a kind of schematic view of the front view of effusion discharging device for oncology nursing proposed by the present invention;
Fig. 2 is a kind of anatomy structural schematic diagram of effusion discharging device for oncology nursing main view proposed by the present invention;
Fig. 3 is the structural schematic diagram of part A amplification in Fig. 2;
Fig. 4 is the structural schematic diagram of driving mechanism in the present invention;
Fig. 5 is a kind of partial structural diagram of effusion discharging device for oncology nursing proposed by the present invention.
In figure: 1 effusion discharging device main body, 2 hydrops collecting chambers, 3 plunger shafts, 4 driving chambers, 5 piston rods, 6 piston plates, 7 First connecting tube, 8 tee tubes, 9 third connecting tubes, 10 first check valves, 11 hydrops discharging hoses, 12 drainage syringe needles, 13 second Check valve, 14 second connecting tubes, 15 tapping valves, 16 liquid discharging tubes, 17 handles, 18 switch controllers, 19 batteries, 20 driving horses Reach, 21 rotating wheels, 22 connecting pins, 23 motion bars, 24 hinged seats, 25L shape gas vent, 26 sliding eyes, 27 brackets, 28 mounting plates, 29 third mounting holes, 30 limited blocks.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment
With reference to Fig. 1-5, a kind of effusion discharging device for oncology nursing, including hydrops discharge dress are proposed in the present embodiment Main body 1 is set, handle 17, the generally L-shaped structure of handle 17, hydrops are fixed on the left of 1 upper surface of effusion discharging device main body The inside of tapping equipment main body 1 is equipped with hydrops collecting chamber 2, in the effusion discharging device main body 1 above hydrops collecting chamber 2 Portion is equipped with plunger shaft 3 and driving chamber 4, and plunger shaft 3 is located at the left side of driving chamber 4, has been slidably and sealingly connected with piston in plunger shaft 3 Plate 6, the right side of piston plate 6 is fixedly connected with piston rod 5, and the right end sliding of piston rod 5 is through in driving chamber 4, driving chamber 4 The interior driving mechanism being equipped with for driving piston rod 5 to carry out piston motion;
The left side of effusion discharging device main body 1 is equipped with tee tube 8, at two nozzles in the left side of tee tube 8 on fix respectively It is connected with the first connecting tube 7 and the second connecting tube 14, the right end of the first connecting tube 7 extends in plunger shaft 3, the second connecting tube 14 Right end extend in hydrops collecting chamber 2, tee tube 8 is connected by the first connecting tube 7 with the inside of plunger shaft 3, tee tube 8 It is connected by the second connecting tube 14 with the inside of hydrops collecting chamber 2, is fixedly connected with third company at the nozzle in 8 left side of tee tube Adapter tube 9, the left end of third connecting tube 9 are fixedly connected with hydrops discharging hose 11, and hydrops discharging hose 11 is far from third connecting tube 9 One end be equipped with drainage syringe needle 12;
Driving mechanism includes the drive motor 20 being installed in driving chamber 4, is fixedly installed in the bottom interior wall of driving chamber 4 Bracket 27, and drive motor 20 is fixedly mounted on bracket 27, fixing sleeve is connected to rotating wheel 21 on the output shaft of drive motor 20, Connecting pin 22 is fixedly welded in rotating wheel 21, rotating wheel 21 is rotatably connected to motion bar 23, motion bar 23 by connecting pin 22 One end and piston rod 5 far from connecting pin 22 are rotatablely connected far from one end of piston plate 6;
The left bottom of effusion discharging device main body 1 is fixedly installed with liquid discharging tube 16, and liquid discharging tube 16 and hydrops collecting chamber 2 Inside be connected, liquid discharging tube 16 be equipped with tapping valve 15;The present invention passes through drainage syringe needle 12, switch controller 18, driving horse Up to 20, rotating wheel 21, the cooperation of connecting pin 22, motion bar 23, hinged seat 24, piston rod 5 and sliding eye 26, piston can be made Plate 6 carries out left and right piston motion in plunger shaft 3, can quickly emit the tumour hydrops of patient, time saving province Power, and whole device compact, easily operated use, portability is high, is suitable for promoting the use of.
Specifically, the inside of the second connecting tube 14 is equipped with the first check valve 10, and it is single that the inside of third connecting tube 9 is equipped with second To valve 13.
Specifically, the left side top inner wall of hydrops collecting chamber 2 is equipped with the first mounting hole, and the right end of third connecting tube 9 It is through in the first mounting hole and seals and be fixedly mounted in the first mounting hole;The inner left wall of plunger shaft 3 is equipped with the second peace Hole is filled, the right end of the first connecting tube 7 is through in the second mounting hole and seals and is fixedly mounted in the second mounting hole.
Specifically, the right hand top inner wall of plunger shaft 3 is equipped with L shape gas vent 25, and plunger shaft 3 passes through L shape gas vent 25 It communicates with the outside world;The right side inner wall of plunger shaft 3 is equipped with sliding eye 26, and sliding eye 26 is located at the lower section of L shape gas vent 25, living The sliding of stopper rod 5 runs through sliding eye 26.
Specifically, drive motor 20 is fixed with mounting plate 28 close to the side of bracket 27, and mounting plate 28 passes through bolt It is fixed on bracket 27;Rotating wheel 21 is equipped with third mounting hole 29, and rotating wheel 21 is fixed by third mounting hole 29 It is socketed on the output shaft of drive motor 20.
Specifically, motion bar 23 is equipped with rotation hole, and motion bar 23 is set on connecting pin 22 by rotation hole rotation, Connecting pin 22 is fixed with limited block 30 far from one end of rotating wheel 21;The left end of piston rod 5 is equipped with hinged seat 24, and piston rod 5 are rotatablely connected by hinged seat 24 and motion bar 23.
Specifically, one end of handle 17 is equipped with battery case, is equipped with battery 19 in battery case, the top of handle 17 is equipped with The output end of switch controller 18, battery 19 is electrically connected with the input terminal of switch controller 18, the input terminal of drive motor 20 It is electrically connected with the output end of switch controller 18.
In the present embodiment, when in use, it is inserted in the tumour hydrops of patient using drainage syringe needle 12, passes through switch controller 18, which open drive motor 20, works, and drive motor 20 drives rotating wheel 21 to rotate by output shaft, and rotating wheel 21 drives when rotating Connecting pin 22 rotates, and connecting pin 22 also drives piston rod 5 in sliding eye during rotating by motion bar 23 and hinged seat 24 Bilateral reciprocation is carried out in 26, piston rod 5 drives piston plate 6 to carry out the reciprocal piston motion in left and right in plunger shaft 3 again;When When piston plate 6 is moved to the right, the space positioned at the plunger shaft 3 in 6 left side of piston plate becomes larger, and pressure reduces, and in negative Pressure condition, while the air being located in the plunger shaft 3 on 6 right side of piston plate drains into the external world from L shape gas vent 25, and it is located at piston plate The plunger shaft 3 in 6 left sides is cooperated due to being in negative pressure state, plunger shaft 3 by the ventilation of the first connecting tube 7 and tee tube 8, so that The first check valve 10 in third connecting tube 9 is opened, and the tumour hydrops of subsequent patient passes through drainage syringe needle 12, hydrops discharging hose 11, the cooperation of third connecting tube 9, tee tube 8 and the first connecting tube 7, so that hydrops is emitted into the work positioned at 6 left side of piston plate It fills in chamber 3;When piston plate 6 moves to the left, the space positioned at the plunger shaft 3 in 6 left side of piston plate becomes smaller, and pressure becomes larger, the One check valve 10 is closed, while the second one-way valve 13 in the second connecting tube 14 is opened, and then passes through the hydrops in plunger shaft 3 The transmission of first connecting tube 7, tee tube 8 and the second connecting tube 7 is emitted into hydrops collecting chamber 2, by above-mentioned reciprocating operation, And then can quickly emit the tumour hydrops of patient, it is time saving and energy saving, it is suitable for promoting the use of.
In the present embodiment, whole device compact, easily operated use, by the way that handle 17 is arranged, people make in operation Used time directly holds handle 17, operates with convenient for people, improves the portability used.
In the present embodiment, the tumour hydrops of patient can be emitted into hydrops collecting chamber 2, when needing to pour out, be led to The tapping valve 15 opened on liquid discharging tube 16 is crossed, can quickly be put the hydrops in hydrops collecting chamber 2 using liquid discharging tube 16 Out.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (8)

1. a kind of effusion discharging device for oncology nursing, including effusion discharging device main body (1), which is characterized in that the product It is fixed with handle (17) on the left of liquid tapping equipment main body (1) upper surface, the handle (17) generally L-shaped structure is described The inside of effusion discharging device main body (1) is equipped with hydrops collecting chamber (2), is located at the hydrops above hydrops collecting chamber (2) and discharges dress The inside for setting main body (1) is equipped with plunger shaft (3) and driving chamber (4), and plunger shaft (3) is located at the left side of driving chamber (4), the work It has been slidably and sealingly connected with piston plate (6) in plug chamber (3), has been fixedly connected with piston rod (5) on the right side of the piston plate (6), and is living The right end sliding of stopper rod (5) is through in driving chamber (4), is equipped in the driving chamber (4) for driving piston rod (5) to live Fill in the driving mechanism of movement;
The left side of the effusion discharging device main body (1) is equipped with tee tube (8), at two nozzles on the left of the tee tube (8) On be respectively fixedly connected with the first connecting tube (7) and the second connecting tube (14), the right end of first connecting tube (7) extends to work It fills in chamber (3), the right end of second connecting tube (14) extends in hydrops collecting chamber (2), and the tee tube (8) passes through first Connecting tube (7) is connected with the inside of plunger shaft (3), and the tee tube (8) passes through the second connecting tube (14) and hydrops collecting chamber (2) inside is connected, and is fixedly connected with third connecting tube (9) at the nozzle on the left of the tee tube (8), the third connection The left end of pipe (9) is fixedly connected with hydrops discharging hose (11), and the hydrops discharging hose (11) is far from third connecting tube (9) One end is equipped with drainage syringe needle (12);
The driving mechanism includes the drive motor (20) that is installed in driving chamber (4), in the bottom interior wall of the driving chamber (4) It is fixedly installed with bracket (27), and drive motor (20) is fixedly mounted on bracket (27), the output of the drive motor (20) Fixing sleeve is connected to rotating wheel (21) on axis, is fixedly welded with connecting pin (22) on the rotating wheel (21), the rotating wheel (21) It is rotatably connected to motion bar (23) by connecting pin (22), the motion bar (23) one end and piston rod far from connecting pin (22) (5) one end far from piston plate (6) is rotatablely connected;
The left bottom of the effusion discharging device main body (1) is fixedly installed with liquid discharging tube (16), and liquid discharging tube (16) and hydrops The inside of collecting chamber (2) is connected, and the liquid discharging tube (16) is equipped with tapping valve (15).
2. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that second connection The inside for managing (14) is equipped with the first check valve (10), and the inside of the third connecting tube (9) is equipped with second one-way valve (13).
3. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that the hydrops is collected The left side top inner wall of chamber (2) is equipped with the first mounting hole, and the right end of third connecting tube (9) is through in the first mounting hole simultaneously Sealing is fixedly mounted in the first mounting hole;The inner left wall of the plunger shaft (3) is equipped with the second mounting hole, and described first connects The right end of adapter tube (7) is through in the second mounting hole and seals and is fixedly mounted in the second mounting hole.
4. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that the plunger shaft (3) right hand top inner wall is equipped with L shape gas vent (25), and the plunger shaft (3) passes through L shape gas vent (25) and extraneous phase It is logical;The right side inner wall of the plunger shaft (3) is equipped with sliding eye (26), and sliding eye (26) is located under L shape gas vent (25) Side, piston rod (5) sliding run through sliding eye (26).
5. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that the drive motor (20) side close to bracket (27) is fixed with mounting plate (28), and mounting plate (28) is fixed on bracket by bolt (27) on.
6. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that the rotating wheel (21) third mounting hole (29) are equipped with, and rotating wheel (21) is fixedly attached to drive motor (20) by third mounting hole (29) Output shaft on.
7. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that the motion bar (23) it is equipped with rotation hole, and motion bar (23) is set on connecting pin (22) by rotation hole rotation, the connecting pin (22) One end far from rotating wheel (21) is fixed with limited block (30);The left end of the piston rod (5) is equipped with hinged seat (24), and living Stopper rod (5) is rotatablely connected by hinged seat (24) and motion bar (23).
8. a kind of effusion discharging device for oncology nursing according to claim 1, which is characterized in that the handle (17) One end be equipped with battery case, be equipped with battery (19) in battery case, the top of the handle (17) is equipped with switch controller (18), the output end of the battery (19) is electrically connected with the input terminal of switch controller (18), the drive motor (20) Input terminal is electrically connected with the output end of switch controller (18).
CN201910178606.7A 2019-03-11 2019-03-11 A kind of effusion discharging device for oncology nursing Pending CN109833531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910178606.7A CN109833531A (en) 2019-03-11 2019-03-11 A kind of effusion discharging device for oncology nursing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910178606.7A CN109833531A (en) 2019-03-11 2019-03-11 A kind of effusion discharging device for oncology nursing

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CN109833531A true CN109833531A (en) 2019-06-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111529778A (en) * 2020-05-23 2020-08-14 王涛 Clinical blood-accumulation-preventing drainage operation device applicable to neurosurgery
CN111853734A (en) * 2020-08-04 2020-10-30 中机国能炼化工程有限公司 A kind of chemical equipment heat transfer and reuse equipment
CN114053497A (en) * 2021-11-24 2022-02-18 陈秀华 Hydrops discharging equipment is used in oncology nursing

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CN207654462U (en) * 2017-06-14 2018-07-27 黄庆勇 A kind of medical negative pressure drainage device
CN207785559U (en) * 2017-09-27 2018-08-31 汪文利 A kind of medical treatment department of general surgery hepatobiliary drainage device
CN207980075U (en) * 2017-11-19 2018-10-19 贵州省人民医院 A kind of courage liver surgery drainage device
US20190009010A1 (en) * 2013-01-03 2019-01-10 Kci Licensing, Inc. Recharging Negative-Pressure Wound Therapy

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Publication number Priority date Publication date Assignee Title
CN2640476Y (en) * 2003-07-14 2004-09-15 山东威高集团医用高分子制品股份有限公司 Pleural effusion aspirator
US20190009010A1 (en) * 2013-01-03 2019-01-10 Kci Licensing, Inc. Recharging Negative-Pressure Wound Therapy
CN204484878U (en) * 2015-03-16 2015-07-22 魏静 A kind of effusion extractor for endocrinology department
CN204840426U (en) * 2015-08-06 2015-12-09 盛军章 Drainage device for oncology
CN206473590U (en) * 2016-04-25 2017-09-08 崔璇 A kind of endocrine hydrops negative suction system
CN207654462U (en) * 2017-06-14 2018-07-27 黄庆勇 A kind of medical negative pressure drainage device
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111529778A (en) * 2020-05-23 2020-08-14 王涛 Clinical blood-accumulation-preventing drainage operation device applicable to neurosurgery
CN111853734A (en) * 2020-08-04 2020-10-30 中机国能炼化工程有限公司 A kind of chemical equipment heat transfer and reuse equipment
CN114053497A (en) * 2021-11-24 2022-02-18 陈秀华 Hydrops discharging equipment is used in oncology nursing

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Application publication date: 20190604

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