CN208574052U - A kind of splanchnocoel negative pressure drainage device - Google Patents
A kind of splanchnocoel negative pressure drainage device Download PDFInfo
- Publication number
- CN208574052U CN208574052U CN201721177218.XU CN201721177218U CN208574052U CN 208574052 U CN208574052 U CN 208574052U CN 201721177218 U CN201721177218 U CN 201721177218U CN 208574052 U CN208574052 U CN 208574052U
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- China
- Prior art keywords
- negative pressure
- drainage
- pressure
- connecting pipe
- tube
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Abstract
The utility model discloses a kind of splanchnocoel negative pressure drainage devices comprising negative pressure source, drainage tube and pressure limiting valve；It is characterized in that, the pressure limiting valve includes drainage connecting pipe, negative pressure connecting tube, spring, slide valve and pressure control knob, the drainage connecting pipe front end and the drainage tube are connected, negative pressure connecting tube front end and the drainage connecting pipe middle section position are connected, negative pressure connecting tube rear end is connected by hose and the negative pressure source, the slide valve sealing is slidedly arranged in the drainage connecting pipe, the pressure control knob is screwed onto the drainage connecting pipe rear end, and the spring is connected between the slide valve and the pressure control knob.When using the splanchnocoel negative pressure drainage device, the pressure limiting valve internal pressure is alternately gone up and down, the slide valve is forced to front and back and moves back and forth, and can control the negative pressure source to reach the negative pressure in the pressure limiting valve with this, realizes limitation and stabilization to the negative pressure value for attracting thoracic cavity or abdominal cavity.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of splanchnocoel negative pressure drainage device.
Background technique
There are three types of existing splanchnocoel drainage devices:
One, single-chamber drainage tube negative pressure ball, principle be pinched by negative pressure ball it is flat after sphere wall elastic recovery force formed it is negative
Pressure.Its advantage is that it is easy to carry, caliber is thin, trauma of abdomi napwall is small, internal organs influence it is small.But disadvantage is first is that pressure is uncontrollable, too small shadow
Drainage effect is rung, it is excessive, it sucks nethike embrane and intestinal wall causes the consequences such as plugging, intestinal obstruction even necrosis；Second is that capacity is limited, draw
It needs to frequently replace and empties when flow is more；Third is that effective unidirectional valve control head is not configured, more than the drainage liquid measure or by
To the possibility for having adverse current when squeezing.The Chinese patent (application number 201520812916) that Authorization Notice No. is CN205163738U is public
A kind of disjunctor negative pressure ball drainage device has been opened, has been connected with lower end drainage ball by unidirectional drainage valve by spherical upper end drainage ball
Composition, the device drainage flow is big, can avoid repeatedly replacement drainage ball device, while also can avoid adverse current, but pressure is still not
Controllably.
Two, single lumen catheter wall vacuum suction, principle are by connecting wall negative pressure channel to generate negative pressure.Its advantage
It is pressure adjustable section, is able to satisfy the needs of larger negative pressure, it is ideal to the attraction effect of the concentrated things such as infection or necrosis, while
More drainage-fluid can be accommodated.But its disadvantage is also very prominent, first is that drainage tube is thick, hard, injury of abdominal wall is big, to internal organs shadow
Sound is also big, is easy compressing intestinal tube and causes obstruction even necrosis；Second is that pressure oscillation, due to lacking pressure limiting device, when local lacuna disappears
Pressure steeply rises when mistake, a series of adverse consequences, including the even big bleeding of bowel obstruction, tissue necrosis occurs, jeopardizes life
Life；Third is that extremely inconvenient using carrying, when field and simple and crude condition, is difficult to apply.
Three, single lumen catheter pedal negative pressure attracts, and principle is by negative using being formed after foot-operated exhaust to fixed volume space
Pressure.Its advantage is that pressure is relatively controllable, the needs of larger negative pressure are able to satisfy, it is fine to the attraction effect of thick matter, carry phase
To convenience.Its disadvantage is first is that need special messenger foot-operated, to manapower allocation requirement height；Second is that although pressure can be according to foot-operated dynamics tune
It is whole, but dynamics is bigger than normal and is difficult to accurately control；Third is that being also difficult to apply in field and condition of battlefield using also more inconvenient.
Above-mentioned three kinds of splanchnocoel drainage devices cannot meet simultaneously using the constant controllable, drainage flow of simple and convenient, pressure
Big requirement, therefore be badly in need of a kind of using constant controllable, the good splanchnocoel drainage device of drainage effect of simple and convenient, pressure.
Utility model content
Therefore, for the pressure drained in drainage device in the prior art can not constant controllable problem, this is practical new
The purpose of type is to provide a kind of splanchnocoel negative pressure drainage device, with to attracting the negative pressure value in thoracic cavity or abdominal cavity to carry out limitation and steady
It is fixed.
The splanchnocoel negative pressure drainage device of the utility model includes negative pressure source 1, drainage tube 2 and pressure limiting valve 3；The pressure limiting valve
Including drainage connecting pipe 31, negative pressure connecting tube 32, spring 33, slide valve 34 and pressure control knob 35, the drainage connecting pipe 31
Front end and the drainage tube 2 are connected, and 32 front end of negative pressure connecting tube and 31 middle section position of drainage connecting pipe are connected, described
32 rear end of negative pressure connecting tube is connected by hose and the negative pressure source 1, and the sealing of slide valve 34 is slidedly arranged on the drainage connecting pipe
In 31, the pressure control knob 35 is screwed onto 31 rear end of drainage connecting pipe, and the spring 33 is connected to the slide valve 34
Between the pressure control knob 35；Original state, the slide valve 34 are located at the negative pressure connecting tube 32 and connect with the drainage
The rear of the connection mouth of adapter tube 31.
Preferably, the negative pressure source 1 is negative pressure ball.
Preferably, the negative pressure connecting tube 32 is vertically arranged or is obliquely installed relative to the drainage connecting pipe 31, i.e. institute
It states negative pressure connecting tube 32 and the drainage connecting pipe 31 constitutes T-shaped or Y-shaped.
Preferably, 31 front-end port of drainage connecting pipe is outer and 32 back-end ports of negative pressure connecting tube are respectively equipped with outside
Anticreep protrusion 311,321.
Preferably, being equipped with pressure scale 312 in 35 corresponding position of pressure control knob on the drainage connecting pipe 31.
Preferably, being provided with several ventholes 351 on the pressure control knob 35.
Preferably, 2 front end of drainage tube is equipped with several inlet holes, prevent the drainage tube 2 from blocking.
Preferably, the drainage tube 2 also can be used the applicant earlier patent application (application number:
CN201720030318.3 the drainage tube in), the drainage tube be bilayer sleeve, double-jacket tube cooperation can synchronize carry out attraction flushing,
It being not easy to plug, drainage effect is good, and for intaking, inner tube connects negative pressure and is used to be discharged middle external tube, when being used for the utility model, inner tube
It can be with the drainage connecting pipe 31.
The utility model has the beneficial effects that:
1, in the utility model, the sucking of negative pressure and thoracic cavity or peritoneal fluid that the negative pressure source provides, the pressure limiting valve
Internal pressure is alternately gone up and down, and is driven the slide valve front and back to move back and forth in conjunction with the back stretch of the spring, is made with this described
Negative pressure connecting tube constantly replaces opening and closing with the connection mouth of the drainage connecting pipe, can control the negative pressure source in turn
The negative pressure in the pressure limiting valve is reached, realizes limitation and stabilization to the negative pressure value for attracting thoracic cavity or abdominal cavity.
2, by adjusting the precession degree of the limited-voltage control knob, it can adjust the slide valve in the drainage connecting pipe
Position, and then have the function that control pressure size.The limited-voltage control knob precession more forward, the slide valve are negative from described
Press connecting tube closer with the connection mouth of the drainage connecting pipe, the slide valve, which slides forward, will turn on mouth and seal required negative pressure just
It is smaller；Conversely, precession degree is lower before the limited-voltage control knob rotation direction, the slide valve draws from the negative pressure connecting tube with described
The connection mouth for flowing connecting tube is remoter, and the slide valve, which slides forward, will turn on mouth to seal required negative pressure bigger.
Detailed description of the invention
Fig. 1 is the schematic diagram of the splanchnocoel negative pressure drainage device of the utility model；
Fig. 2 is the schematic diagram of the pressure limiting valve of the utility model；
Fig. 3 is the cut-away view of the pressure limiting valve of the utility model.
Appended drawing reference
Negative pressure source 1；
Drainage tube 2；
Pressure limiting valve 3, drainage connecting pipe 31, negative pressure connecting tube 32, spring 33, slide valve 34, pressure control knob 35, anticreep is convex
Rise 311 and 321, pressure scale 312, venthole 351.
Specific embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.It should be understood that following embodiment is only used for
Bright the utility model is not for restriction the scope of the utility model.
Embodiment 1
Fig. 1 show the splanchnocoel negative pressure drainage device of one preferred embodiment of the utility model comprising negative pressure source 1 draws
Flow tube 2 and pressure limiting valve 3.
Wherein, negative pressure source 1 is a negative pressure ball.2 front end of drainage tube is equipped with several inlet holes, prevents from blocking.Such as Fig. 2 and 3
Shown, pressure limiting valve 3 includes drainage connecting pipe 31, negative pressure connecting tube 32, spring 33, slide valve 34 and pressure control knob 35.Drainage
31 front end of connecting tube and drainage tube 2 are connected, and 32 front end of negative pressure connecting tube and 31 middle section position of drainage connecting pipe are connected, negative pressure connection
Pipe 32 is obliquely installed relative to drainage connecting pipe 31, i.e., negative pressure connecting tube 32 and drainage connecting pipe 31 form Y-shaped, negative pressure connection
32 rear end of pipe is connected by hose and negative pressure source 1, outside 31 front-end port of drainage connecting pipe and outside 32 back-end ports of negative pressure connecting tube
It is respectively equipped with anticreep protrusion 311,321.The sealing of slide valve 34 is slidedly arranged in drainage connecting pipe 31, and pressure control knob 35, which is screwed onto, to be drawn
It flows 31 rear end of connecting tube and is provided with several ventholes 351, installed on drainage connecting pipe 31 in 35 corresponding positions of pressure control knob
There is pressure scale 312.Spring 33 is connected between slide valve 34 and pressure control knob 35；Original state, slide valve 34 are located at negative pressure
Connecting tube 32 and drainage connecting pipe 31 connect the rear of mouth.
Working principle:
When in use, negative pressure source 1 connects 32 rear end of negative pressure connecting tube on pressure limiting valve 3, and drainage tube 2 connects drainage connecting pipe
31 front ends, drainage tube 2 protrude into the thoracic cavity or abdominal cavity of patient.When original state, slide valve 34 is located at negative pressure connecting tube 32 and drainage
Connecting tube 31 connects the rear of mouth, i.e. negative pressure connecting tube 32 and drainage connecting pipe 31 connects mouth in opened condition.After beginning to use,
Make to generate negative pressure in device by pinching pressure negative pressure source 1, slide valve 34 will gradually be inhaled toward Forward, until by negative pressure connecting tube 32 with draw
The connection mouth of stream connecting tube 31 seals.When the liquid in thoracic cavity or abdominal cavity is gradually sucked pressure limiting valve 3, negative pressure becomes smaller, slide valve 34
It moves back and opens under the pulling force effect of spring 33.
By pinching the sucking of pressure negative pressure source 1 and thoracic cavity or peritoneal fluid, 3 internal pressure of pressure limiting valve is alternately gone up and down, in conjunction with bullet
The back stretch of spring moves back and forth before and after driving slide valve 34, and the connection mouth of negative pressure connecting tube 32 Yu drainage connecting pipe 31 is made with this
Constantly alternately open and close, can control negative pressure source 1 to reach the negative pressure in pressure limiting valve 3 in turn, realize to attract thoracic cavity or
The limitation and stabilization of the negative pressure value in abdominal cavity.
By adjusting the precession degree of limited-voltage control knob 35, position of the slide valve 34 in drainage connecting pipe 31 can adjust,
And then have the function that control pressure size.The precession more forward of limited-voltage control knob 35, slide valve 34 from negative pressure connecting tube 32 with draw
The connection mouth for flowing connecting tube 31 is closer, and slide valve 34, which slides forward, will turn on mouth and seal required negative pressure with regard to smaller；Conversely, pressure limiting control
Precession degree is lower forward for knob 35 processed, and slide valve 34 is remoter with the connection mouth of drainage connecting pipe 31 from negative pressure connecting tube 32, slide valve
34 forward sliding will turn on mouth to seal required negative pressure bigger.Limited-voltage control knob can be accurately determined by pressure scale 312
35 precession degree, and the setting of venthole 351 can be such that 35 inside of limited-voltage control knob connects with extraneous, and internal pressure is avoided to become
Change the sliding for influencing slide valve 34, while improving the accuracy of pressure control.
The preferred embodiment created to the utility model above is illustrated, but the utility model is created not
It is limited to embodiment, those skilled in the art are various etc. without prejudice to can also make under the utility model precondition for innovation
Same variation or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (7)
1. a kind of splanchnocoel negative pressure drainage device comprising negative pressure source (1), drainage tube (2) and pressure limiting valve (3)；It is characterized in that,
The pressure limiting valve includes drainage connecting pipe (31), negative pressure connecting tube (32), spring (33), slide valve (34) and pressure control knob
(35), drainage connecting pipe (31) front end and the drainage tube (2) are connected, and negative pressure connecting tube (32) front end is drawn with described
It flows connecting tube (31) middle section position to connect, negative pressure connecting tube (32) rear end is connected by hose and the negative pressure source (1), institute
It states slide valve (34) sealing to be slidedly arranged in the drainage connecting pipe (31), the pressure control knob (35) is screwed onto the drainage and connects
(31) rear end is taken over, the spring (33) is connected between the slide valve (34) and the pressure control knob (35)；Initial shape
State, the slide valve (34) are located at the rear of the connection mouth of the negative pressure connecting tube (32) and the drainage connecting pipe (31).
2. splanchnocoel negative pressure drainage device according to claim 1, which is characterized in that the negative pressure source (1) is negative pressure ball.
3. splanchnocoel negative pressure drainage device according to claim 1, which is characterized in that the negative pressure connecting tube (32) is opposite
It is vertically arranged or is obliquely installed in the drainage connecting pipe (31).
4. splanchnocoel negative pressure drainage device according to claim 1, which is characterized in that drainage connecting pipe (31) front end
It is raised (311,321) that anticreep is respectively equipped with outside port and outside negative pressure connecting tube (32) back-end ports.
5. splanchnocoel negative pressure drainage device according to claim 1, which is characterized in that on the drainage connecting pipe (31) in
Pressure control knob (35) corresponding position is equipped with pressure scale (312).
6. splanchnocoel negative pressure drainage device according to claim 1, which is characterized in that on the pressure control knob (35)
It is provided with several ventholes (351).
7. splanchnocoel negative pressure drainage device according to claim 1, which is characterized in that drainage tube (2) front end is equipped with
Several inlet holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177218.XU CN208574052U (en) | 2017-09-14 | 2017-09-14 | A kind of splanchnocoel negative pressure drainage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177218.XU CN208574052U (en) | 2017-09-14 | 2017-09-14 | A kind of splanchnocoel negative pressure drainage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208574052U true CN208574052U (en) | 2019-03-05 |
Family
ID=65498334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721177218.XU Expired - Fee Related CN208574052U (en) | 2017-09-14 | 2017-09-14 | A kind of splanchnocoel negative pressure drainage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208574052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551332A (en) * | 2017-09-14 | 2018-01-09 | 中国人民解放军第二军医大学 | A kind of splanchnocoel negative pressure drainage device |
-
2017
- 2017-09-14 CN CN201721177218.XU patent/CN208574052U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107551332A (en) * | 2017-09-14 | 2018-01-09 | 中国人民解放军第二军医大学 | A kind of splanchnocoel negative pressure drainage device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190305 Termination date: 20190914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |