CN2915037Y - Direct changing dual-valve liquid vacuum extractor - Google Patents
Direct changing dual-valve liquid vacuum extractor Download PDFInfo
- Publication number
- CN2915037Y CN2915037Y CN 200620091936 CN200620091936U CN2915037Y CN 2915037 Y CN2915037 Y CN 2915037Y CN 200620091936 CN200620091936 CN 200620091936 CN 200620091936 U CN200620091936 U CN 200620091936U CN 2915037 Y CN2915037 Y CN 2915037Y
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- valve
- storage container
- cerebrospinal fluid
- liquid storage
- negative pressure
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- Expired - Fee Related
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Abstract
The utility model relates to a liquid pumping device with two valves and negative pressure that can be switched directly. The liquid pumping device comprises a measuring tube, a puncture needle, a junction valve with transfer switch, a liquid storage container. The measuring tube is communicated with the upper port of the junction valve and the puncture needle with the front port of the junction valve whose back port is connected with the liquid storage container. The utility model is safe and convenient because the utility model can switch the operations of measuring and getting cerebrospinal fluid directly in the ongoing process by the junction valve with transfer switch instead of manual switch and the utility model can recover the remaining cerebrospinal fluid in the measuring tube. In addition, the measuring aspirator can determine the amount of cerebrospinal fluid and the unilateral valves in the entrance end and exit valve can deposit cerebrospinal fluid specimen directly in the specimen container avoiding the contamination of cerebrospinal fluid. Finally, a vent of the flexible plastic bottle-the liquid storage container can extrude the bottle to form the negative pressure within the bottle, by which the cerebrospinal fluid remaining in the linking pipe connected with the bottle can be aspirated and recovered.
Description
One, technical field: this utility model relates to a kind of cerebrospinal pressure that is used for and measures and get the liquid extracting device of samples of CSF, particularly convenient, safety, and do not waste the liquid extracting device of the cerebrospinal fluid of taking out, belong to field of medical devices.
Two, background technology: the apparatus of now measuring, extract out cerebrospinal fluid clinically, the methods that adopt manual switching promptly after measuring the pressure of cerebrospinal fluid, are pulled out measuring tube more, change needle tubing and extract cerebrospinal fluid out, get the operation of samples of CSF, in the transformation process, the cerebrospinal fluid in the measuring tube not only wastes, and in sampling process, pollute specimen easily, so the process of this switching, inconvenience also lacks safety.
Three, summary of the invention:
1, goal of the invention: this utility model provides a kind of cut-through bivalve negative pressure liquid extracting device, its purpose is to solve the apparatus of now extracting, measure cerebrospinal fluid clinically out, when the specimen operation of the pressure of measuring cerebrospinal fluid and extraction cerebrospinal fluid, adopt the manual method of switching, cerebrospinal fluid in the measuring tube is wasted, and have problem inconvenient, uneasy congruent aspect.
2, technical scheme: this utility model is achieved through the following technical solutions:
A kind of cut-through bivalve negative pressure liquid extracting device, it comprises measuring tube, puncture needle; It is characterized in that: this liquid extracting device also comprises connection valve and the liquid storage container of being with change-over switch, and measuring tube and the upper port that is connected valve are communicated with, puncture needle with is connected the valve front port and is communicated with connection liquid storage container on the rear port of connection valve.
The rear port that connects valve is connected with the liquid storage container by tolerance formula aspirator, and the inlet of tolerance formula aspirator is communicated with the rear port that is connected valve, and the outlet of tolerance formula aspirator is connected with the liquid storage container.
Tolerance formula aspirator is made of body and piston type drawing liquid core, piston type drawing liquid core is located in the body, the inlet of body front end is provided with check valve, and the outage of piston type drawing liquid core front end setting is connected with the port of export that is provided with the unmarried valve of outlet by connection tube, and body is marked with scale.
The connection valve of band change-over switch is made of the spool that a valve body and an on-off action have handle, valve body is the hollow cylindrical structure of an opening, valve body is provided with three ports with internal communication, spool is located in the valve body, it freely rotates in valve body under the drive of handle, spool is provided with three holes corresponding with three ports of valve body, is interconnected in three aperture spools.
The liquid storage container is a plastic soft bottle, and the air vent on it is provided with exhaust check valve.
3, advantage and effect: by the enforcement of technical solutions of the utility model, can solve the apparatus of now measuring, extract out cerebrospinal fluid clinically well, when the specimen operation of the pressure of measuring cerebrospinal fluid and extraction cerebrospinal fluid, adopt the manual method of switching, cerebrospinal fluid in the measuring tube is wasted, and have problem inconvenient, uneasy congruent aspect.This utility model safe ready measuring cerebrospinal pressure and getting in the cerebrospinal fluid process not handover operation by hand, connects valve by switching regulator, the directly handover measurement and the operation of getting liquid, and cerebrospinal fluid residual in the measuring tube can be reclaimed.Tolerance formula aspirator has guaranteed determining the drawing liquid amount, the check valve of its arrival end and the port of export, guaranteed that the samples of CSF that directly will get directly deposits in the container of placing specimen, can not pollute specimen, plastic soft bottle is as the container of liquid storage, it can form the negative pressure in the bottle by the extruding of the air vent above it, utilize negative pressure can with connection tube that it is connected in the cerebrospinal fluid sucking-off that retains reclaim, this utility model is simple in structure, easy to use, the plug of having removed each pipeline and apparatus from is switched, and has guaranteed safety.
Four, description of drawings: accompanying drawing 1 is this utility model structural representation;
Accompanying drawing 2 connects the structural representation of tolerance formula aspirator for this utility model;
Accompanying drawing 3 is this utility model valve core structure sketch map.
Five, the specific embodiment:
With reference to the accompanying drawings this utility model is specified as follows below:
Embodiment 1:
As shown in Figure 1, a kind of cut-through bivalve of this utility model negative pressure liquid extracting device, it comprises measuring tube 4, puncture needle 15; This liquid extracting device also comprises connection valve 1 and the liquid storage container 8 of being with change-over switch, and measuring tube 4 and the upper port 10 that is connected valve 1 are communicated with, puncture needle 15 with is connected valve 1 front port 2 and is communicated with connection liquid storage container 8 on the rear port 11 of connection valve 1.
As shown in Figure 2, the rear port 11 that connects valve 1 also can be connected with liquid storage container 8 by tolerance formula aspirator 12, and the inlet of promptly measuring formula aspirator 12 is communicated with the rear port 11 that is connected valve 1, connects liquid storage container 8 in the outlet of tolerance formula aspirator 12; Tolerance formula aspirator 12 is made of body 5 and piston type drawing liquid core 6, piston type drawing liquid core 6 is located in the body 5, the inlet of body 5 front ends is provided with check valve 13, piston type drawing liquid core 6 front ends have outage 14 to be connected with the port of export that is provided with outlet check valve 16 by connection tube 7, and body 5 is marked with scale.
The connection valve 1 of band change-over switch is made of the spool 18 that a valve body and an on-off action have handle, valve body is the hollow cylindrical structure of an opening, valve body is provided with three ports 2,10,11 with internal communication, spool 18 is located in the valve body, it freely rotates in valve body under the drive of handle 3, as shown in Figure 3, spool 18 is provided with three holes 19,20,17, three holes corresponding with three ports 2,10,11 of valve body 19,20,17 and is interconnected through the inside of spool 18.
During use, after this utility model connected, sign according to the handle 3 that connects valve, rotational valve core 18, make two through holes of spool 18 corresponding with two ports that connect measuring tube and puncture needle, make another through hole not corresponding simultaneously with rear port, measuring tube is communicated with puncture needle like this, then can measure the pressure of cerebrospinal fluid, when getting samples of CSF, rotational valve core, make the measuring tube on two through holes and the upper port corresponding earlier with the rear port that is connected tolerance formula aspirator inlet, then residual cerebrospinal fluid sucks in the tolerance formula aspirator in the measuring tube with the upper end, rotational valve core makes the puncture needle on the front port be communicated with tolerance formula aspirator again, then can get enough cerebrospinal fluid by scale, because the check valve of tolerance formula aspirator front end for only can not going into, then promote piston type drawing liquid core, cerebrospinal fluid in the body is entered in the liquid storage container by the outage on the piston type drawing liquid core and the connection tube that is connected with it and the port of export that is provided with the outlet check valve, residual cerebrospinal fluid in the connection tube, can be by behind the extruding liquid storage container, by being provided with the steam vent of check valve, discharge gas utilizes cerebrospinal fluid residual in the negative pressure sucking-off connection tube to realize the purpose that reclaims after making its inner formation negative pressure.
This utility model is simple in structure, practical, and each apparatus of measuring and getting liquid is not changed in plug by hand, does not waste the cerebrospinal fluid of getting, and can not pollute samples of CSF yet, uses simple and safe and reliable.
Claims (5)
1, a kind of cut-through bivalve negative pressure liquid extracting device, it comprises measuring tube (4), puncture needle (15); It is characterized in that: this liquid extracting device also comprises connection valve (1) and the liquid storage container (8) of being with change-over switch, measuring tube (4) is communicated with the upper port that is connected valve (1) (10), puncture needle (15) be connected valve (1) front port (2) and be communicated with, the rear port (11) that connects valve (1) is gone up and is connected liquid storage container (8).
2, cut-through bivalve negative pressure liquid extracting device according to claim 1, it is characterized in that: the rear port (11) that connects valve (1) is connected with liquid storage container (8) by tolerance formula aspirator (12), the inlet of tolerance formula aspirator (12) is communicated with the rear port that is connected valve (1) (11), and the outlet of tolerance formula aspirator (12) is connected with liquid storage container (8).
3, cut-through bivalve negative pressure liquid extracting device according to claim 2, it is characterized in that: tolerance formula aspirator (12) is made of body (5) and piston type drawing liquid core (6), piston type drawing liquid core (6) is located in the body (5), the inlet of body (5) front end is provided with check valve (13), the outage (14) that piston type drawing liquid core (6) front end is provided with is connected with the port of export that is provided with the unmarried valve of outlet (16) by connection tube (7), and body (5) is marked with scale.
4, cut-through bivalve negative pressure liquid extracting device according to claim 1, it is characterized in that: the connection valve (1) of band change-over switch is by valve body and play spool (18) formation that on-off action has handle, valve body is the hollow cylindrical structure of an opening, valve body is provided with three ports (2 with internal communication, 10,11), spool (18) is located in the valve body, it freely rotates in valve body under the drive of handle (3), spool (18) is provided with three ports (2 with valve body, 10,11) Dui Ying three holes (19,20,17), three holes (19,20,17) in spool (18), be interconnected.
5, cut-through bivalve negative pressure liquid extracting device according to claim 1, it is characterized in that: liquid storage container (8) is a plastic soft bottle, and the air vent on it is provided with exhaust check valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091936 CN2915037Y (en) | 2006-07-07 | 2006-07-07 | Direct changing dual-valve liquid vacuum extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620091936 CN2915037Y (en) | 2006-07-07 | 2006-07-07 | Direct changing dual-valve liquid vacuum extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2915037Y true CN2915037Y (en) | 2007-06-27 |
Family
ID=38185941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620091936 Expired - Fee Related CN2915037Y (en) | 2006-07-07 | 2006-07-07 | Direct changing dual-valve liquid vacuum extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2915037Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108030538A (en) * | 2018-01-19 | 2018-05-15 | 中国人民解放军第0七医院 | A kind of Cardiological tapping device |
| CN112932549A (en) * | 2021-01-28 | 2021-06-11 | 中国人民解放军陆军军医大学 | Experiment rat cerebrospinal fluid extraction device based on double syringes |
-
2006
- 2006-07-07 CN CN 200620091936 patent/CN2915037Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108030538A (en) * | 2018-01-19 | 2018-05-15 | 中国人民解放军第0七医院 | A kind of Cardiological tapping device |
| CN108030538B (en) * | 2018-01-19 | 2020-09-04 | 王海涛 | Intracardiac branch of academic or vocational study puncture draw liquid device |
| CN112932549A (en) * | 2021-01-28 | 2021-06-11 | 中国人民解放军陆军军医大学 | Experiment rat cerebrospinal fluid extraction device based on double syringes |
| CN112932549B (en) * | 2021-01-28 | 2022-07-05 | 中国人民解放军陆军军医大学 | Experiment rat cerebrospinal fluid extraction device based on double syringes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 |