CN102309812A - Negative-pressure drainage device - Google Patents
Negative-pressure drainage device Download PDFInfo
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- CN102309812A CN102309812A CN201110321672A CN201110321672A CN102309812A CN 102309812 A CN102309812 A CN 102309812A CN 201110321672 A CN201110321672 A CN 201110321672A CN 201110321672 A CN201110321672 A CN 201110321672A CN 102309812 A CN102309812 A CN 102309812A
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Abstract
The invention discloses a negative-pressure drainage device, which comprises a cylinder, a drainage tube, a piston plate, a piston rod and a bracket. The cavity of the cylinder is divided by the piston plate into an upper cavity and a lower cavity, the upper cavity is communicated with the atmosphere, and the bottom of the lower cavity is connected with a removable liquid storage device; the liquid discharging port of the drainage tube is communicated with the lower cavity, and the drainage tube is provided with a valve; and the piston plate is provided with an air vent communicated with the upper cavity and the lower cavity, and the upper surface of the piston plate is hinged with a cover plate used for sealing the air vent. When the piston plate moves downwards, air in the lower cavity can be ejected to open the cover plate to flow into the atmosphere through the air vent, negative pressure can be formed in the lower cavity after the piston plate moves upwards, continuous drainage can be achieved by the negative-pressure drainage device, and the working efficiency is high; the valve on the drainage tube can be closed to avoid liquid backflow during drainage; the liquid storage device can be removed to completely discharge liquid in the lower cavity, and cleaning can be facilitated; and the negative pressure can be produced manually or with the negative-pressure drainage device, and the negative-pressure drainage device has high practicality and can be used conveniently.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of device that utilizes negative pressure drainage.
Background technology
Negative pressure drainage is very extensive in clinical practice, and to operation back patient, the purpose of negative pressure drainage has 2 points, and the first is for outside the liquid lead body that wound surface is oozed out; It two is exactly to help the wound organization healing in order through negative pressure the wound surface lacuna to be dwindled.This will negate presses will have certain pressure and continue, and the wound surface lacuna is dwindled, and in addition, drain will have pipeline, and wants negative pressure to keep.The depression drainage device of using clinically now is a lot, but is that negative pressure and drain are in same container, like artificial negative pressure drainage ball, artificial negative pressure drainage vessel, central negative pressure drainage bottle etc. basically.Artificial depression drainage device can occur in making the negative pressure process that a small amount of drain flows backwards and pressure is big inadequately, and shortcomings such as inconvenience are poured out or cleaned to drain.In case the central negative pressure drainage bottle then exists central negative pressure to stop just not having negative pressure, can't use, and inconvenience is poured out and shortcoming such as inconvenience cleaning.In the prior art, artificial depression drainage device can only lean on and artificial produce negative pressure, and can not lean on external impetus such as vacuum extractor to produce negative pressure, and manually-operated produces negative pressure and comparatively requires great effort; The central negative pressure drainage bottle can only lean on external impetus such as vacuum extractor to produce negative pressure, and can not be through the artificial negative pressure that produces, and vacuum extractor just can not be worked when vacuum pump etc. breaks down.And depression drainage device of the prior art, drain liquid just can not carry out negative pressure drainage after getting into negative pressure cavity, need pull down after the drain and carry out drain again after drainage device is discharged drain liquid, and drain work can only intermittently be carried out, drain continuously, inefficiency.
Therefore all there is defective in the use in negtive-pressure implement of the prior art.
Summary of the invention
In view of this; The purpose of this invention is to provide a kind of depression drainage device, it has convenience for washing, do not have advantage such as drain liquid refluence, both can be through the artificial negative pressure that produces; Also can be through generation negative pressure such as vacuum extractors; But and the continuous several times drain, high efficiency, thus overcome the shortcoming that has depression drainage device now.
Depression drainage device of the present invention; The piston plate that comprises cylinder barrel, drainage tube, is sealed and matched with inner wall of cylinder, be arranged at the piston rod on the piston plate and be used to support the support of cylinder barrel; Piston plate is divided into cavity of resorption and epicoele with inner cavity of cylinder; Cavity of resorption is that negative pressure produces chamber, epicoele and atmosphere, and the cavity of resorption bottom is connected with dismountable device for storing liquid, and device for storing liquid cooperates with the cylinder barrel bottom seals; The leakage fluid dram of drainage tube communicates with cavity of resorption, and drainage tube is provided with valve; Said piston plate is provided with the passage that is communicated with epicoele and cavity of resorption, is hinged with the cover plate that is used to seal passage on the piston plate upper surface, the rotational angle of cover plate greater than 0 ° less than 90 °.
Further, the end of said epicoele is provided with cover, and piston rod passes cover and is slidingly matched with it, is provided with the compression spring between cover and the piston plate, and said compression spring overcoat is in piston rod;
Further, also comprise the stopping means that is used at drain process lock piston Board position;
Further, said stopping means comprises the pin-and-hole that is arranged on the piston rod and is arranged at the latch in the pin-and-hole removably, and said pin-and-hole is positioned at the end that piston rod and piston plate join;
Further, said stopping means for be positioned at the cover upper surface and with the piston rod thread nut engaged;
Further, said cavity of resorption bottom is an infundibulate, and said device for storing liquid is the drainage bag of the funnel discharging tube threaded engagement bottom cavity of resorption;
Further, be provided with also on the piston plate that an end communicates with cavity of resorption, the exhaustor of the other end and atmosphere, exhaustor is provided with valve or pipe close.
Beneficial effect of the present invention: depression drainage device of the present invention: when piston plate is descending; The air that in the drain process, gets into cavity of resorption can back down the piston plate upper cover plate and get into atmosphere from passage; Passage is sealed under the atmospheric pressure effect in the last journey cover plate that moves past; Cavity of resorption forms negative pressure again, thereby makes depression drainage device realize continuous drain, the drain high efficiency; Descent of piston with cavity of resorption in liquid be transferred in the device for storing liquid process, draw valve on the fluid tube as long as close, can prevent that drain liquid from flowing backwards; Pull down device for storing liquid, atmosphere can get into cavity of resorption, thereby can guarantee that the liquid in the cavity of resorption can all get rid of, and can import clean liquid through drainage tube and clean, thereby convenience for washing; This depression drainage device can produce negative pressure through the hand propelled piston, also can exhaustor be connected with vacuum extractor, produces negative pressure through vacuum extractor, and is practical, convenient in application.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is the structural representation of depression drainage device of the present invention;
Fig. 2 is the zoomed-in view of P portion among Fig. 1;
Fig. 3 is first kind of negative pressure drainage view of depression drainage device of the present invention;
Fig. 4 is second kind of negative pressure drainage view of depression drainage device of the present invention.
The specific embodiment
Fig. 1 is the structural representation of depression drainage device of the present invention; Fig. 2 is the zoomed-in view of P portion among Fig. 1; Fig. 3 is first kind of negative pressure drainage view of depression drainage device of the present invention; Fig. 4 is second kind of negative pressure drainage view of depression drainage device of the present invention.
As shown in the figure; The present embodiment depression drainage device; The piston plate 3 that comprises cylinder barrel 1, drainage tube 2, is sealed and matched with inner wall of cylinder, be arranged at the piston rod 4 on the piston plate and be used to support the support 5 of cylinder barrel, piston plate is divided into cavity of resorption 1a and epicoele 1b with inner cavity of cylinder, and cavity of resorption is negative pressure generation chamber, epicoele and an atmosphere; The cavity of resorption bottom is connected with dismountable device for storing liquid 6, and device for storing liquid cooperates with the cylinder barrel bottom seals; The leakage fluid dram of drainage tube communicates with cavity of resorption, and drainage tube is provided with valve 7; Piston plate is provided with the passage 3a that is communicated with epicoele and cavity of resorption, is hinged with the cover plate 8 that is used to seal passage 3a on the piston plate upper surface, the rotational angle of cover plate 8 greater than 0 ° less than 90 °.
This depression drainage device upwards draws piston rod 4, and piston plate 3 rises and makes cavity of resorption 1a form negative pressure, thereby liquid in the wound is sucked cavity of resorption, and in the drain process, the air in the wound also possibly be inhaled into cavity of resorption; When a vacuum suction was accomplished, it was descending to promote piston plate 4, changes drain liquid over to device for storing liquid 6, and in the piston plate 4 descending processes, the air that gets into cavity of resorption is pushed the cover plate 8 entering atmosphere on the piston plate 4 open; After a drain liquid shifted and accomplishes, the pulling piston plate was up, and cover plate 8 is closed vent hole 3a under the atmospheric pressure effect, and cavity of resorption forms negative pressure, proceeds the secondary negative pressure drainage.The drain operation can be carried out continuously, and efficient is high.
Descent of piston with cavity of resorption in liquid be transferred in the device for storing liquid process, draw valve 7 on the fluid tube as long as close, can prevent that drain liquid from flowing backwards; Pull down device for storing liquid 6, atmosphere can get into cavity of resorption, thereby can guarantee that the liquid in the cavity of resorption can all get rid of, and can import clean liquid through drainage tube and clean, thereby convenience for washing.
As the improvement to this embodiment, the end of said epicoele 1b is provided with cover 9, and cover 9 is provided with steam vent 9a, thereby makes epicoele and atmosphere; Piston rod 4 passes cover 9 and is slidingly matched with it, is provided with compression spring 10 between cover 9 and the piston plate 3, and said compression spring 10 is coated at piston rod 4; Compression spring 4 can replace artificial promotion piston plate 3 descending, changes drain liquid over to device for storing liquid, thereby alleviates operator's labor intensity.
As improvement, also comprise the stopping means that is used in drain process lock piston plate 3 positions to this embodiment.As shown in Figure 3, stopping means described in the present embodiment comprises the pin-and-hole that is arranged on the piston rod and is arranged at the latch 11 in the pin-and-hole removably, and said pin-and-hole is positioned at the end that piston rod 4 and piston plate 3 join.Upwards spur piston rod 4 and make pin-and-hole be positioned at cover 9 tops, again latch 11 is inserted pin-and-hole, through the position of latch fixed piston plate 3; This stopping means is simple in structure, is convenient to implement.Certainly in practical implementation; Stopping means also can be other structures, and is as shown in Figure 4, stopping means be positioned at cover 9 upper surfaces and with the nut 12 of piston rod 4 threaded engagement; With the thread segment on the nut 12 screw-in piston rods 4; Can piston plate 3 fixed-site be lived, with the thread segment that nut 4 screws out on the piston rod 4, piston plate 3 can move down under the promotion of compression spring 10.
As the improvement to this embodiment, said cavity of resorption 1a bottom is an infundibulate, and said device for storing liquid 6 is the drainage bag of the funnel discharging tube threaded engagement bottom cavity of resorption; The bottom is all changed over to drainage bag for infundibulate can make the drain liquid in the cavity of resorption.Certainly device for storing liquid 6 can also be bottled container.
As improvement to this embodiment, be provided with also on the said piston plate 3 that an end communicates with cavity of resorption 1a, the exhaustor 13 of the other end and atmosphere, exhaustor 13 is provided with pipe close 14 with an end of atmosphere.When adopting vacuum extractor, vacuum pump etc. to extract the cavity of resorption air out, take off pipe close 14, exhaustor is connected with the negative-pressure adsorption device; When adopting the aerofluxus of artificial promotion piston plate to make, pipe close 14 is filled in exhaustor 13, prevent the air admission cavity of resorption; Certainly pipe close 14 also can adopt valve to substitute in practical implementation.After the limited device in piston plate 4 positions is fixing, extract out, thereby make cavity of resorption continue to keep negative pressure, realize continuous drain through the air that vacuum extractor will get among the cavity of resorption 1a.This structure makes this vacuum extractor produce negative pressure through the artificial piston plate that promotes, and external equipment also capable of using produces negative pressure, and is practical, easy to use.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. depression drainage device; It is characterized in that: the piston plate that comprises cylinder barrel, drainage tube, is sealed and matched with inner wall of cylinder, be arranged at the piston rod on the piston plate and be used to support the support of cylinder barrel; Piston plate is divided into cavity of resorption and epicoele with inner cavity of cylinder; Cavity of resorption is that negative pressure produces chamber, epicoele and atmosphere, and the cavity of resorption bottom is connected with dismountable device for storing liquid, and device for storing liquid cooperates with the cylinder barrel bottom seals; The leakage fluid dram of drainage tube communicates with cavity of resorption, and drainage tube is provided with valve; Piston plate is provided with the passage that is communicated with epicoele and cavity of resorption, is hinged with the cover plate that is used to seal passage on the piston plate upper surface, the rotational angle of cover plate greater than 0 ° less than 90 °.
2. depression drainage device according to claim 1 is characterized in that: the end of said epicoele is provided with cover, and piston rod passes cover and is slidingly matched with it, is provided with the compression spring between cover and the piston plate, and said compression spring overcoat is in piston rod.
3. depression drainage device according to claim 2 is characterized in that: also comprise the stopping means that is used at drain process lock piston Board position.
4. depression drainage device according to claim 3 is characterized in that: said stopping means comprises the pin-and-hole that is arranged on the piston rod and is arranged at the latch in the pin-and-hole removably, and said pin-and-hole is positioned at the end that piston rod and piston plate join.
5. depression drainage device according to claim 4 is characterized in that: said stopping means for be positioned at the cover upper surface and with the piston rod thread nut engaged.
6. depression drainage device according to claim 5 is characterized in that: said cavity of resorption bottom is infundibulate, and said device for storing liquid is the drainage bag of the funnel discharging tube threaded engagement bottom cavity of resorption.
7. according to the described depression drainage device of arbitrary claim among the claim 1-6, it is characterized in that: be provided with also on the piston plate that an end communicates with cavity of resorption, the exhaustor of the other end and atmosphere, exhaustor is provided with valve or pipe close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110321672 CN102309812B (en) | 2011-10-21 | 2011-10-21 | Negative-pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110321672 CN102309812B (en) | 2011-10-21 | 2011-10-21 | Negative-pressure drainage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102309812A true CN102309812A (en) | 2012-01-11 |
| CN102309812B CN102309812B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110321672 Expired - Fee Related CN102309812B (en) | 2011-10-21 | 2011-10-21 | Negative-pressure drainage device |
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| Country | Link |
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| CN (1) | CN102309812B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210287A (en) * | 2018-08-08 | 2019-01-15 | 肇庆欧迪斯实业有限公司 | A kind of conduit and liquid shift auxiliary device |
| CN114404089A (en) * | 2022-02-22 | 2022-04-29 | 江苏医药职业学院 | Department of stomatology negative pressure device convenient to be attached to tooth tissue |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971053A (en) * | 1988-07-19 | 1990-11-20 | Edward Tarrats | Suction mask to relieve choking |
| US5542939A (en) * | 1993-10-26 | 1996-08-06 | Daiken Iki Co., Ltd. | Fluid aspiration-collection apparatus |
| US6174306B1 (en) * | 1995-05-13 | 2001-01-16 | Wim Fleischmann | Device for vacuum-sealing an injury |
| CN2602760Y (en) * | 2003-03-14 | 2004-02-11 | 于德利 | Pressure regulated disposable medical negative pressure suction apparatus |
| CN201469872U (en) * | 2009-08-26 | 2010-05-19 | 郭静 | Drainage system for surgical operations |
| CN201988036U (en) * | 2011-01-31 | 2011-09-28 | 郭玉珍 | Special drainage bottle for medical department |
-
2011
- 2011-10-21 CN CN 201110321672 patent/CN102309812B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4971053A (en) * | 1988-07-19 | 1990-11-20 | Edward Tarrats | Suction mask to relieve choking |
| US5542939A (en) * | 1993-10-26 | 1996-08-06 | Daiken Iki Co., Ltd. | Fluid aspiration-collection apparatus |
| US6174306B1 (en) * | 1995-05-13 | 2001-01-16 | Wim Fleischmann | Device for vacuum-sealing an injury |
| CN2602760Y (en) * | 2003-03-14 | 2004-02-11 | 于德利 | Pressure regulated disposable medical negative pressure suction apparatus |
| CN201469872U (en) * | 2009-08-26 | 2010-05-19 | 郭静 | Drainage system for surgical operations |
| CN201988036U (en) * | 2011-01-31 | 2011-09-28 | 郭玉珍 | Special drainage bottle for medical department |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210287A (en) * | 2018-08-08 | 2019-01-15 | 肇庆欧迪斯实业有限公司 | A kind of conduit and liquid shift auxiliary device |
| CN114404089A (en) * | 2022-02-22 | 2022-04-29 | 江苏医药职业学院 | Department of stomatology negative pressure device convenient to be attached to tooth tissue |
| CN114404089B (en) * | 2022-02-22 | 2023-08-25 | 江苏医药职业学院 | Stomatology negative pressure device convenient to attach to tooth tissue |
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| CN102309812B (en) | 2013-04-24 |
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Granted publication date: 20130424 Termination date: 20151021 |
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