CN109498860B - Backflow preventing device for medical negative therapy drainage device - Google Patents
Backflow preventing device for medical negative therapy drainage device Download PDFInfo
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- CN109498860B CN109498860B CN201910035486.5A CN201910035486A CN109498860B CN 109498860 B CN109498860 B CN 109498860B CN 201910035486 A CN201910035486 A CN 201910035486A CN 109498860 B CN109498860 B CN 109498860B
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- pipe
- drainage
- negative pressure
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- connecting pipe
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- 238000002560 therapeutic procedure Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract description 20
- 230000002980 postoperative effect Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 208000015181 infectious disease Diseases 0.000 abstract description 2
- 230000029663 wound healing Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- A61M1/0023—
Abstract
The invention relates to the technical field of medical drainage auxiliary instruments and discloses a backflow preventing device for a medical negative therapy drainage device, which comprises a drainage machine, a negative pressure pipe body, a fixed pipe and a limiting pipe, wherein the limiting pipe is sleeved at one end of the fixed pipe in a threaded manner, the inside of the fixed pipe is communicated with the inside of the limiting pipe, a first guide pipe is communicated between the drainage machine and the fixed pipe, a second guide pipe is communicated between the limiting pipe and the negative pressure pipe body, the other end of the limiting pipe is communicated with a drainage pipe, and a sealing cover is sleeved at the top end of the negative pressure pipe body in a threaded manner. This medical negative therapy drainage device is with preventing flow reversal device carries out the drainage through the suction of drainage machine when, removes the bottom that the piston removed the negative pressure body for the inside formation negative pressure of negative pressure body utilizes the negative pressure suction of negative pressure body, prevents that the liquid in the drainage tube from flowing backwards to patient's is internal when the suction of drainage machine disappears, thereby prevents the infection of patient's postoperative, and the wound healing of postoperative.
Description
Technical Field
The invention relates to the technical field of medical drainage auxiliary instruments, in particular to a backflow preventing device for a medical negative therapy drainage device.
Background
In clinic, the drainage bag is replaced gradually by the drainage machine due to the advantage that the negative pressure drainage quantity is controllable along with the development of medical science.
When the drainage is carried out on pus, blood and liquid in the tissues or body cavities of a patient, the drainage machine can be out of order or power cut and the like, so that the drainage machine stops working, therefore, when the drainage machine stops working, the pus, the blood and the liquid can not flow back into the drainage tube, the drainage tube is usually disposable, and the anti-backflow device is generally arranged at the drainage machine in consideration of the cost.
Disclosure of Invention
The invention provides a backflow preventing device for a medical negative therapy drainage device, which has the advantage of preventing drainage liquid from flowing back into a patient, and solves the problem that the existing backflow preventing device only can prevent pus, blood and liquid in the drainage device from flowing back into the drainage tube, and the pus, blood and liquid in the drainage tube connected with the patient can flow back into the patient, so that postoperative rehabilitation of the patient is influenced.
The invention provides the following technical scheme: a backflow prevention device for a medical negative therapy drainage device comprises a drainage machine, a negative pressure pipe body, a fixed pipe and a limiting pipe, wherein the limiting pipe is sleeved at one end of the fixed pipe in a threaded manner, the inside of the fixed pipe is communicated with the inside of the limiting pipe, a first guide pipe is communicated between the drainage machine and the fixed pipe, a second guide pipe is communicated between the limiting pipe and the negative pressure pipe body, the other end of the limiting pipe is communicated with a drainage pipe, a sealing cover is sleeved at the top end of the negative pressure pipe body in a threaded manner, a tension spring is fixedly connected to the middle of the bottom end of the sealing cover, a movable piston is fixedly connected to the bottom end of the tension spring, the outer edge of the tension spring is movably sleeved with the inner wall of the negative pressure pipe body, a first connecting pipe is fixedly connected to the bottom end of the negative pressure pipe body, the bottom end of the first connecting pipe is movably sleeved with the top end of, one end of the second connecting pipe is movably sleeved with one end of the first flow guide pipe, the top and the bottom of one side of the inner cavity of the fixed pipe, which is far away from the limiting pipe, are fixedly connected with fixed blocks, one ends of the two fixed blocks are respectively sleeved with a connecting shaft in a threaded manner, one ends of the two connecting shafts, which are far away from the fixed blocks, are respectively and fixedly connected with sliding shafts, the two sliding shafts are respectively and fixedly sleeved with a limiting block close to one end of the connecting shaft, the two sliding shafts are respectively and movably sleeved with springs positioned on one side of the limiting block, the two sliding shafts are respectively and, a three-way guide groove is arranged inside the limiting pipe, one end of the limiting pipe far away from the fixed pipe is fixedly connected with a third connecting pipe, one end of the third connecting pipe is movably sleeved with one end of the drainage pipe, the top of the limiting pipe is fixedly connected with a fourth connecting pipe, and the top end of the fourth connecting pipe is movably sleeved with the bottom end of the second flow guide pipe.
Optionally, the volume of the inner cavity of the negative pressure tube body below the movable piston is larger than the volume of the inner cavity of the drainage tube.
Optionally, a through hole is formed in the top end of the negative pressure pipe body, and a sealing ring is arranged at the joint of the top end of the negative pressure pipe body and the bottom of the sealing cover.
Optionally, the one end of first connecting pipe, second connecting pipe, third connecting pipe and fourth connecting pipe all is equipped with protruding circle, and the equal activity of the junction of first connecting pipe and second honeycomb duct one end, the junction of second connecting pipe and first honeycomb duct one end, the junction of fourth connecting pipe and the second honeycomb duct other end and the junction of third connecting pipe and drainage tube one end has cup jointed and is located protruding one side snap ring, first honeycomb duct, second honeycomb duct and drainage tube are disposable hose.
Optionally, a sealing gasket is movably sleeved at the joint of the fixed pipe and the limiting pipe.
Optionally, the diameter of the sliding shaft is smaller than that of the connecting shaft.
Optionally, the side surface of the sealing plate is movably connected with one end of the limiting pipe, and the distance between the other side of the sealing plate and the side surface of the limiting block is equal to the length of the spring.
Optionally, an annular groove located on the outer side of the three-way guide groove is formed in the side face of the limiting pipe, and the annular groove is movably sleeved with one end of the sliding shaft.
Optionally, the inside of the three-way guide groove is communicated with the inside of the fixed pipe, the inside of the third connecting pipe and the inside of the fourth connecting pipe, and the diameter of the three-way guide groove is smaller than that of the sealing plate.
The invention has the following beneficial effects:
1. this medical negative therapy drainage device is with preventing flow reversal device carries out the drainage through the suction of drainage machine when, removes the bottom that the piston removed the negative pressure body for the inside formation negative pressure of negative pressure body utilizes the negative pressure suction of negative pressure body, prevents that the liquid in the drainage tube from flowing backwards to patient's is internal when the suction of drainage machine disappears, thereby prevents the infection of patient's postoperative, and the wound healing of postoperative.
2. This medical negative therapy drainage machine is with preventing device that flows backwards, through the inside negative pressure that produces of negative pressure body, when carrying out the drainage to the inside liquid of drainage tube, at the effect of cooperation spring, the tee bend guide slot is plugged up to the closing plate to make the negative pressure body only to the inside liquid effect of drainage tube, the liquid in the fixed tube can not flow back to in the injecing pipe, thereby ensure that the liquid suction to in the drainage tube is enough, the liquid in the drainage tube can not flow back to patient internal.
3. This medical negative therapy drainage device is with preventing flowing backwards cup joints through fixed pipe and injectting the pipe screw, and the connecting axle cup joints with the fixed block screw, and sealed lid and negative pressure body screw cup joint are convenient for dismantle preventing flowing backwards device, and the structure of fixed pipe and negative pressure body inside respectively disinfects the washing, can carry out the next time and utilize, has saved the cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the negative pressure tube body of the present invention;
fig. 3 is a sectional view of the fixing tube of the present invention.
In the figure: 1. a drainage machine; 2. a negative pressure pipe body; 21. a sealing cover; 22. a tension spring; 23. moving the piston; 24. a first connecting pipe; 3. a fixed tube; 31. a second connecting pipe; 32. a fixed block; 33. a connecting shaft; 34. a slide shaft; 35. a limiting block; 36. a spring; 37. a sealing plate; 4. defining a tube; 41. a three-way guide groove; 42. a third connecting pipe; 43. a fourth connecting pipe; 5. a first draft tube; 6. a second draft tube; 7. a drainage tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a backflow prevention device for a medical negative therapy drainage apparatus comprises a drainage machine 1, a negative pressure tube 2, a fixed tube 3 and a limiting tube 4 which is sleeved on one end of the fixed tube 3 in a threaded manner, wherein the side surface of the limiting tube 4 is provided with an annular groove which is positioned on the outer side of a three-way guide groove 41, and the annular groove is movably sleeved on one end of a sliding shaft 34, so that when the drainage machine 1 works, the drainage machine generates suction on liquid inside a drainage tube 7 and also generates suction on the inside of the negative pressure tube 2, the normal operation of the drainage work is not affected, meanwhile, when the drainage machine 1 works, the suction on the liquid inside the drainage tube 7 can be immediately continued through the negative pressure tube 2, the liquid inside the drainage tube 7 is prevented from flowing back, the inside of the fixed tube 3 is communicated with the inside of the limiting tube 4, a sealing washer is movably sleeved on the joint of the fixed tube 3 and the limiting tube 4, and, leakage and loss of action of the negative pressure pipe body 2 in the drainage process are prevented, a first guide pipe 5 is communicated between the drainage machine 1 and the fixed pipe 3, a second guide pipe 6 is communicated between the limiting pipe 4 and the negative pressure pipe body 2, the volume of an inner cavity of the negative pressure pipe body 2 below the movable piston 23 is larger than that of an inner cavity of the drainage pipe 7, liquid in the drainage pipe 7 can be ensured to fully enter the negative pressure pipe body 2, partial backflow cannot occur, a through hole is formed in the top end of the negative pressure pipe body 2, and a sealing ring is arranged at the joint of the top end of the negative pressure pipe body 2 and the bottom of the sealing cover 21, so that the sealing effect in the negative pressure pipe body 2 is better, when the movable piston 23 moves, the air pressure above the inner cavity of the movable piston 23 is reduced, negative pressure is formed, so that when the drainage machine 1 loses action, the movable piston 23 can, the liquid in the drainage tube 7 is prevented from flowing back to the body of a patient, the other end of the limiting tube 4 is communicated with the drainage tube 7, the top end of the negative pressure tube body 2 is sleeved with a sealing cover 21 in a threaded manner, the middle part of the bottom end of the sealing cover 21 is fixedly connected with a tension spring 22, the bottom end of the tension spring 22 is fixedly connected with a movable piston 23, the outer edge of the tension spring 22 is movably sleeved with the inner wall of the negative pressure tube body 2, the bottom end of the negative pressure tube body 2 is fixedly connected with a first connecting tube 24, one end of the first connecting tube 24, one end of a second connecting tube 31, one end of a third connecting tube 42 and one end of a fourth connecting tube 43 are respectively provided with a convex ring, and the joint of the first connecting tube 24 and one end of the second drainage tube 6, the joint of the second connecting tube 31 and one end of the first drainage tube 5, the joint, the first guide pipe 5, the second guide pipe 6 and the drainage pipe 7 are disposable flexible pipes, so that the first guide pipe 5, the second guide pipe 6 and the drainage pipe 7 can be stably fixed on the third connecting pipe 42, the first connecting pipe 24 and the second connecting pipe 31, leakage in the drainage process is prevented, the bottom end of the first connecting pipe 24 is movably sleeved with the top end of the second guide pipe 6, one end of the fixed pipe 3 far away from the limiting pipe 4 is fixedly connected with the second connecting pipe 31, one end of the second connecting pipe 31 is movably sleeved with one end of the first guide pipe 5, the top and the bottom of one side of the inner cavity of the fixed pipe 3 far away from the limiting pipe 4 are fixedly connected with fixed blocks 32, one ends of the two fixed blocks 32 are respectively in threaded sleeve connection with a connecting shaft 33, one ends of the two connecting shafts 33 far away from the fixed blocks 32 are respectively and fixedly connected with a sliding shaft 34, and the diameter, after the fixed tube 3 and the limiting tube 4 are separated, the sealing plate 37 and the spring 36 are conveniently taken down for cleaning and disinfection, so as to be used next time, meanwhile, the limiting block 35 is used for supporting the spring, when the drainage machine 1 conducts drainage, the sealing plate 37 moves the compression spring 36, so that when the drainage machine 1 stops working, the restoring force of the spring 36 is used for matching with the suction force generated by the negative pressure tube body 2, the limiting tube 4 is blocked by the sealing plate 37 again, the two sliding shafts 34 are respectively fixedly sleeved with the limiting blocks 35 close to one end of the connecting shaft 33, the two sliding shafts 34 are respectively movably sleeved with the spring 36 positioned on one side of the limiting block 35, when the drainage machine 1 works, the generated suction force is larger than the sum of the elastic force generated by the two springs 36 and the tensile force generated by 22 times of the tension spring, the two sliding shafts 34 are movably sleeved with the sealing plate 37 positioned on one side of the limiting block 35, and the distance value between the other side of the sealing plate 37 and the side of the limiting block 35 is equal to the length value of the spring 36, so that under normal conditions, the sealing plate 37 just contacts with the limiting tube 4, the spring 36 is in a loose state, when the drainage machine 1 generates suction during operation, the comfort of a patient is considered, and the suction is not easy to be too large, the sealing plate 37 can move and compress the spring 36, so that the fixed tube 3 is communicated with the limiting tube 4, the inside of the limiting tube 4 is provided with the three-way guide groove 41, the inside of the three-way guide groove 41 is communicated with the fixed tube 3, the inside of the third connecting tube 42 and the inside of the fourth connecting tube 43, the diameter of the three-way guide groove 41 is smaller than that of the sealing plate 37, when the negative pressure tube body 2 works, the sealing plate 37 completely blocks the limiting tube 4, so as to ensure that the liquid in the fixed tube 3, the one end fixedly connected with third connecting pipe 42 that fixed pipe 3 was kept away from to restricted pipe 4, and the one end of third connecting pipe 42 cup joints with the one end activity of drainage tube 7, and the top fixedly connected with fourth connecting pipe 43 of restricted pipe 4, the top of fourth connecting pipe 43 cup joints with the bottom activity of second honeycomb duct 6.
When the drainage device is used, firstly, one end of the drainage tube 7 is connected with a drainage part of a patient, the drainage device is started to form attraction force for drainage, the sealing plate 37 moves leftwards under the action of the attraction force of the drainage device, the limiting tube 4 is communicated with the fixed tube 3, so that drainage is performed, meanwhile, the movable piston 23 moves to the bottom of the negative pressure tube body 2, then, when the drainage device stops working, the tension spring 22 in the negative pressure tube body 2 pulls the movable piston 23 to move upwards, meanwhile, the sealing plate 37 blocks the limiting tube under the action of the elastic force of the spring 36, finally, liquid in the drainage tube 7 continues to flow into the negative pressure tube body 2 under the action of the upwards movement of the movable piston 23 until the movable piston 23 stops moving, and the liquid in the drainage tube 7 stops moving.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a medical negative therapy drainage ware is with preventing flow reversal device which characterized in that: comprises a drainage machine (1), a negative pressure pipe body (2), a fixed pipe (3) and a limiting pipe (4) which is sleeved at one end of the fixed pipe (3) in a threaded manner, the inside of the fixed pipe (3) is communicated with the inside of the limiting pipe (4), the drainage machine (1) is communicated with the fixed pipe (3) through a first guide pipe (5), the limiting pipe (4) is communicated with the negative pressure pipe body (2) through a second guide pipe (6), the other end of the limiting pipe (4) is communicated with a drainage pipe (7), a sealing cover (21) is sleeved on the top thread of the negative pressure pipe body (2), a tension spring (22) is fixedly connected to the middle part of the bottom end of the sealing cover (21), a movable piston (23) is fixedly connected to the bottom end of the tension spring (22), the outer edge of the tension spring (22) is movably sleeved with the inner wall of the negative pressure pipe body (2), and a first connecting pipe (24) is fixedly connected to the bottom end of the negative, the bottom end of the first connecting pipe (24) is movably sleeved with the top end of the second guide pipe (6), one end of the fixed pipe (3) far away from the limiting pipe (4) is fixedly connected with a second connecting pipe (31), one end of the second connecting pipe (31) is movably sleeved with one end of the first guide pipe (5), the top and the bottom of one side of the inner cavity of the fixed pipe (3) far away from the limiting pipe (4) are fixedly connected with fixed blocks (32), one ends of the two fixed blocks (32) are respectively in threaded sleeve connection with a connecting shaft (33), one ends of the two connecting shafts (33) far away from the fixed blocks (32) are respectively and fixedly connected with sliding shafts (34), two sliding shafts (34) are respectively and fixedly sleeved with limiting blocks (35) close to one ends of the connecting shafts (33), and two sliding shafts (34) are respectively and movably sleeved with springs (36) positioned on one sides of the limiting blocks, two movable sleeve is equipped with and is located closing plate (37) of stopper (35) one side on slide shaft (34), the inside of restriction pipe (4) is equipped with tee bend guide slot (41), the one end fixedly connected with third connecting pipe (42) of fixed pipe (3) are kept away from in restriction pipe (4), the one end of third connecting pipe (42) is cup jointed with the one end activity of drainage tube (7), the top fixedly connected with fourth connecting pipe (43) of restriction pipe (4), the top of fourth connecting pipe (43) is cup jointed with the bottom activity of second honeycomb duct (6).
2. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: the volume of the inner cavity of the negative pressure tube body (2) below the movable piston (23) is larger than that of the inner cavity of the drainage tube (7).
3. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: the top end of the negative pressure pipe body (2) is provided with a through hole, and a sealing ring is arranged at the joint of the top end of the negative pressure pipe body (2) and the bottom of the sealing cover (21).
4. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: the one end of first connecting pipe (24), second connecting pipe (31), third connecting pipe (42) and fourth connecting pipe (43) all is equipped with protruding circle, and the junction of first connecting pipe (24) and second honeycomb duct (6) one end, the junction of second connecting pipe (31) and first honeycomb duct (5) one end, the junction of fourth connecting pipe (43) and the second honeycomb duct (6) other end and the junction of third connecting pipe (42) and drainage tube (7) one end all have been cup jointed movably and are located protruding one side snap ring, first honeycomb duct (5), second honeycomb duct (6) and drainage tube (7) are disposable hose.
5. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: and a sealing gasket is movably sleeved at the joint of the fixed pipe (3) and the limiting pipe (4).
6. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: the diameter of the sliding shaft (34) is smaller than that of the connecting shaft (33).
7. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: the side surface of the sealing plate (37) is movably connected with one end of the limiting pipe (4), and the distance value between the other side of the sealing plate (37) and the side surface of the limiting block (35) is equal to the length value of the spring (36).
8. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: and an annular groove positioned on the outer side of the three-way guide groove (41) is formed in the side surface of the limiting pipe (4), and the annular groove is movably sleeved with one end of the sliding shaft (34).
9. The anti-backflow device for the medical negative therapy drainage apparatus according to claim 1, wherein: the inside of the three-way guide groove (41) is communicated with the inside of the fixed pipe (3), the third connecting pipe (42) and the fourth connecting pipe (43), and the diameter of the three-way guide groove (41) is smaller than that of the sealing plate (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035486.5A CN109498860B (en) | 2019-01-15 | 2019-01-15 | Backflow preventing device for medical negative therapy drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910035486.5A CN109498860B (en) | 2019-01-15 | 2019-01-15 | Backflow preventing device for medical negative therapy drainage device |
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| Publication Number | Publication Date |
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| CN109498860A CN109498860A (en) | 2019-03-22 |
| CN109498860B true CN109498860B (en) | 2021-05-28 |
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| CN201910035486.5A Expired - Fee Related CN109498860B (en) | 2019-01-15 | 2019-01-15 | Backflow preventing device for medical negative therapy drainage device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113350629B (en) * | 2021-02-24 | 2022-05-03 | 吉林大学第一医院 | Chronic disease medication reminding and recording device |
| CN113425918B (en) * | 2021-05-28 | 2023-03-21 | 昆明医科大学第一附属医院 | A waste liquid drainage device for CRRT treatment |
| CN114233945B (en) * | 2021-12-23 | 2023-09-01 | 申建光 | Connection structure convenient to warm logical air conditioner pipeline installation is replaced |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062360A (en) * | 1976-04-02 | 1977-12-13 | Bentley Laboratories, Inc. | Atraumatic fluid handling method and apparatus |
| CN2436157Y (en) * | 2000-07-04 | 2001-06-27 | 吴宏 | Thoracic cavity sucker |
| CN102526819A (en) * | 2012-02-24 | 2012-07-04 | 常州大学 | Anti-backflow and blockage-proof negative pressure drainage device |
| CN103285432A (en) * | 2012-02-24 | 2013-09-11 | 常州大学 | Backflow-prevention anti-blocking drainage device with large suction amount |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU729137B2 (en) * | 1996-01-24 | 2001-01-25 | Radford, Fred R. | Contaminated medical waste disposal system and method |
| US7615037B2 (en) * | 2005-12-14 | 2009-11-10 | Stryker Corporation | Removable inlet manifold for a medical/surgical waste collection system, the manifold including a driver for actuating a valve integral with the waste collection system |
| US20100096028A1 (en) * | 2008-10-22 | 2010-04-22 | Globe Union Industrial Corp. | Anti-backflow valve |
| CN201582452U (en) * | 2010-01-27 | 2010-09-15 | 浙江超达阀门股份有限公司 | Constant pressure check valve |
| CN105268034A (en) * | 2014-06-12 | 2016-01-27 | 江苏瑞京科技发展有限公司 | Counter current preventing device of drainage device |
| CN207728968U (en) * | 2017-11-13 | 2018-08-14 | 山东建华阀门制造有限公司 | A kind of backflow preventer |
-
2019
- 2019-01-15 CN CN201910035486.5A patent/CN109498860B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4062360A (en) * | 1976-04-02 | 1977-12-13 | Bentley Laboratories, Inc. | Atraumatic fluid handling method and apparatus |
| CN2436157Y (en) * | 2000-07-04 | 2001-06-27 | 吴宏 | Thoracic cavity sucker |
| CN102526819A (en) * | 2012-02-24 | 2012-07-04 | 常州大学 | Anti-backflow and blockage-proof negative pressure drainage device |
| CN103285432A (en) * | 2012-02-24 | 2013-09-11 | 常州大学 | Backflow-prevention anti-blocking drainage device with large suction amount |
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| CN109498860A (en) | 2019-03-22 |
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