CN2877710Y - Medical liquid suction device - Google Patents
Medical liquid suction device Download PDFInfo
- Publication number
- CN2877710Y CN2877710Y CN 200520121017 CN200520121017U CN2877710Y CN 2877710 Y CN2877710 Y CN 2877710Y CN 200520121017 CN200520121017 CN 200520121017 CN 200520121017 U CN200520121017 U CN 200520121017U CN 2877710 Y CN2877710 Y CN 2877710Y
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- CN
- China
- Prior art keywords
- piston
- vacuum chamber
- slide bar
- outer cylinder
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a medical tapper, comprising an exterior shell and a inner shell with the lower end of which a piston matched with the wall of exterior shell is in a permanent connection, and on top of the exterior shell a vacuum cylinder is arranged, besides, the piston is in a fixed joint with a slide bar the other end of which is in the vacuum cylinder and in a sealing slip-fit connection with the wall of the vacuum cylinder, in this way, in natural state, an area whose size is equal to the transverse section area of the sliding bar, can be reduced from the total area of the upper surface bearing a atmosphere pressure of the piston, thereby lessening the pressure exerted on the surface of the piston, so, the pull needed to pull out the inner shell can be reduced in the process of pumping out the water, besides, the intensity of pressure exerted on the underside of the piston is equal to that of the atmosphere, thereby making sure that the piston will move upward spontaneously the same time with the inner shell and the sliding bar, at the same time, the accumulated water can be pumped out of the exterior shell so that the automatic water tapping can be achieved, which make the operation convenient.
Description
Technical field
This utility model relates to a kind of medical apparatus, particularly a kind of medical liquid extracting device.
Background technology
In the medical treatment process, often hydrops in patient's the body in time need be discharged.Nowadays, generally all use common syringe to drain the water away in the medical treatment as liquid extracting device.But as syringe, its main design function is still injected, because injection volume is generally all little, and in use, generally all for once take out, row's process, so, its structure of existing ordinary syringe for the injection, be very practical, can satisfy medical worker's requirement fully with easily.But, in the process that is used for pump drainage hydrops, because patient part hydrops is often all more, the pump drainage amount is big, often needs repeated multiple times to take out, arrange, relatively effort, and often need bimanualness, use inconvenience,, influenced the efficient of medical treatment so ordinary syringe now can't satisfy the needs that make things convenient for hydrops in the pump drainage patient body.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is a kind of laborsaving that this utility model provides, and one-hand operation, medical liquid extracting device easy to use.
The technical scheme that its technical problem that solves this utility model adopts is:
A kind of medical liquid extracting device, comprise outer cylinder body and the reciprocating inner core of portion within it, there is liquid pumping hole the outer cylinder body bottom, the lower end of inner core is fixedly connected with the piston that cooperates with the outer cylinder body inwall, vacuum chamber is arranged at described outer cylinder body top, also be fixed with slide bar on the piston, the other end of slide bar is positioned at vacuum chamber, and with the sliding connection of vacuum chamber inner wall sealing.
As a kind of preferred implementation of technique scheme, more than one vacuum chamber is arranged at described outer cylinder body top, is fixed with the more than one slide bar corresponding with vacuum chamber on the piston.
The beneficial effects of the utility model are: because vacuum chamber is arranged at this utility model outer cylinder body top, be fixed with slide bar on the piston, the other end of slide bar is positioned at vacuum chamber, and with the sliding connection of vacuum chamber inner wall sealing.Like this, under naturalness, the area that piston upper surface bears atmospheric pressure has just reduced and the corresponding part of the long-pending size of slide bar tangent plane.So, the corresponding minimizing of the suffered atmospheric pressure of piston upper surface.Like this, in the process of extracting hydrops out, the pulling force of needed pulling inner core is just less, laborsaving.In addition, because the suffered pressure of piston lower surface is generally all suitable with atmospheric pressure, because the loaded area of piston lower surface is greater than the loaded area of upper surface, so piston can be up automatically, thereby, even draw inner core not, also can finish drawing liquid, this makes operator only need get final product by holding liquid extracting device, and this just can finish by one hand, handled easily.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
With reference to Fig. 1, Fig. 2, a kind of medical liquid extracting device, comprise outer cylinder body 1 and the reciprocating inner core 2 of portion within it, there is liquid pumping hole 7 outer cylinder body 1 bottom, the lower end of inner core 2 is fixedly connected with the piston 3 that cooperates with outer cylinder body 1 inwall, vacuum chamber 5 is arranged at outer cylinder body 1 top, also be fixed with slide bar 4 on the piston 3, the other end of slide bar 4 is positioned at vacuum chamber 5, and with vacuum chamber 5 inner wall sealing sliding connections, slide bar 4 can pump in vacuum chamber 5 like this, and guarantees that vacuum chamber 5 remains vacuum state.Because vacuum chamber 5 is arranged at outer cylinder body 1 top, be fixed with slide bar 4 on the piston 3, the other end of slide bar 4 is positioned at vacuum chamber 5, and with vacuum chamber 5 inner wall sealing sliding connections, like this, under naturalness, the area that piston upper surface 31 bears atmospheric pressure has just reduced and the corresponding part of the long-pending size of slide bar 4 tangent planes.So, the corresponding minimizing of piston upper surface 31 suffered atmospheric pressures.Like this, in the process of extracting hydrops out, the pulling force of needed pulling inner core 2 is just less.In addition, because piston lower surface 32 suffered pressure are generally all suitable with atmospheric pressure, because the loaded area of piston lower surface 32 is greater than the loaded area of piston upper surface 31, so piston 3 can be together up automatically together with inner core 2 and slide bar 4, simultaneously, hydrops is pressed in the outer cylinder body 1.So just realize automatic drawing liquid, thereby made things convenient for people's operation.
In addition, the quantity of vacuum chamber can be arranged to a plurality of, is connected in slide bar on the piston and also is arranged to a plurality of, and corresponding with vacuum chamber.
On liquid pumping hole 7, the syringe needle that matches can be installed.
Above-mentioned is preferred implementation of the present utility model, and it does not constitute the restriction of ability with the new technique scheme.
Claims (2)
1. medical liquid extracting device, comprise outer cylinder body (1) and the reciprocating inner core of portion (2) within it, there is liquid pumping hole (7) outer cylinder body (1) bottom, the lower end of inner core (2) is fixedly connected with the piston (3) that cooperates with outer cylinder body (1) inwall, it is characterized in that vacuum chamber (5) is arranged at described outer cylinder body (1) top, also be fixed with slide bar (4) on the piston (3), the other end of slide bar (4) is positioned at vacuum chamber (5), and with vacuum chamber (5) inner wall sealing sliding connection.
2. a kind of medical liquid extracting device according to claim 1 is characterized in that more than one vacuum chamber (5) is arranged at described outer cylinder body (1) top, is fixed with the more than one slide bar (4) corresponding with vacuum chamber (5) on the piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121017 CN2877710Y (en) | 2005-12-21 | 2005-12-21 | Medical liquid suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121017 CN2877710Y (en) | 2005-12-21 | 2005-12-21 | Medical liquid suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2877710Y true CN2877710Y (en) | 2007-03-14 |
Family
ID=37860129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121017 Expired - Fee Related CN2877710Y (en) | 2005-12-21 | 2005-12-21 | Medical liquid suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2877710Y (en) |
-
2005
- 2005-12-21 CN CN 200520121017 patent/CN2877710Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |