CN101376039A - Negative-pressure type venous tranfusion device - Google Patents
Negative-pressure type venous tranfusion device Download PDFInfo
- Publication number
- CN101376039A CN101376039A CNA2008101696645A CN200810169664A CN101376039A CN 101376039 A CN101376039 A CN 101376039A CN A2008101696645 A CNA2008101696645 A CN A2008101696645A CN 200810169664 A CN200810169664 A CN 200810169664A CN 101376039 A CN101376039 A CN 101376039A
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- Prior art keywords
- shell
- negative
- housing
- transfusion
- pressing body
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a negative-pressure intravenous infusion set which can increase the success rate for first puncture and reduces the pain of patients caused by repeated punctures. The infusion set comprises a transfusion tube (3), and a negative-pressure device is arranged on the section of the transfusion tube (3) from a pulley switch to a filter; the negative-pressure device comprises a housing (1), the top face of which is open, and round holes allowing the transfusion tube threading through are formed on the two sides of the housing (1); a leaf spring (4) is arranged on the inner bottom surface of the housing, an extrusion body (8) is arranged in the housing (1), and the extrusion body (8) is connected with the housing (1) through a hinge (7). The invention solves the problems of blind puncture and repetitive failure of puncture exisiting in clinic practice ever since a long time ago.
Description
Technical field
The present invention relates to a kind of negative-pressure type venous tranfusion device.
Technical background
At present, existing transfusion device is in the transfusion operation process, whether medical personnel generally are blood back by, judge whether puncture is successful, but cause that for the various complicated causes of disease serious dehydration, hypotension, shock, blood vessel contracture, children's seriously suffer from diarrhoea, and patient such as fat youngster when carrying out venipuncture, then is difficult for blood back, puncture success rate is lower, needs sometimes repeatedly to puncture to bring unnecessary misery to the patient.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of raising head to wear success rate, reduce patient's repeated puncture and bring painful negative-pressure type venous tranfusion device.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: it has tube for transfusion, to this section tube for transfusion of filter, negative pressure device is set at thumbwheel switch, this negative pressure device, comprise shell, its end face opens wide, be provided with the circular hole that can allow tube for transfusion pass in the both sides of shell, inner bottom surface is provided with spring leaf, is provided with pressing body in the shell, pressing body is connected with shell by hinge, torsionspring is arranged on the axle of hinge, and an end of torsionspring suppresses on the inner top surface of pressing body, and the other end suppresses on the Right Inboard wall of shell, the left side of pressing body is provided with groove, and is arranged on first on the shell inner left wall, two projectioies cooperate.
Adopt the present invention that following beneficial effect can be arranged:
A, should not see the patient of blood back to above-mentioned puncture, as long as needle point is worn and reached in the venous lumen, the operation negative pressure device can show enough clear and definite blood back section, thereby express the medical personnel of concrete operations that needle point has reached in the vein blood vessel, can infuse in skirt;
B, the misery that can avoid the patient repeatedly to puncture and bring.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A view of Fig. 1.
Among the figure: shell 1, torsionspring 2, tube for transfusion 3, spring leaf 4, first projection 5, second projection 6, hinge 7, pressing body 8, groove 9, circular hole 10.
The specific embodiment
By Fig. 1, Fig. 2 as can be known the present invention it tube for transfusion 3 is arranged, to this section tube for transfusion 3 of filter, negative pressure device is set at thumbwheel switch, this negative pressure device, comprise shell 1, its end face opens wide, be provided with the circular hole 10 that can allow tube for transfusion 3 pass in the both sides of shell 1, inner bottom surface is provided with spring leaf 4, be provided with pressing body 8 in the shell 1, pressing body 8 is connected with shell 1 by hinge 7, and torsionspring 2 is arranged on the axle of hinge 7, and an end of torsionspring 2 suppresses on the inner top surface of pressing body 8, the other end suppresses on the Right Inboard wall of shell 1, the left side of pressing body 8 is provided with groove 9, and is arranged on first on shell 1 inner left wall, two projectioies 5,6 cooperate, and shell 1 is made by elastoplast, pressing body 8 is hollows, and hinge 7 is arranged on the wall of shell 1 Right Inboard hinged with pressing body 8.
Other structure of the present invention is same as general transfusion device, during use liquid is filled with tube for transfusion 3, the thumbwheel switch push-tight is closed, the pressing body on the negative pressure device of the present invention 8, by cooperating of groove shown in Figure 19 and first projection 5, press to and the cooperating of second projection 6, this moment, the tube for transfusion 3 in shell 1 just was extruded body 8 flattenings, discharge small amount of liquid, when needle point thrusts vein blood vessel,, make the left surface elongation strain left of shell 1 throw off groove 9 with female left side that refers to laterally push shell 1 with forefinger, pressing body 8 is popped up, groove 9 cooperates with first projection 5, and this moment, tube for transfusion 3 just produced certain negative pressure, showed clear and definite blood back section, the prompting medical personnel can infuse, can the inoperation negative pressure device when infusing for general patient.
Claims (1)
1. negative-pressure type venous tranfusion device, it has tube for transfusion (3), it is characterized in that: to this section tube for transfusion (3) of filter, negative pressure device is set at thumbwheel switch, this negative pressure device, comprise shell (1), its end face opens wide, be provided with the circular hole (10) that can allow tube for transfusion (3) pass in the both sides of shell (1), inner bottom surface is provided with spring leaf (4), be provided with pressing body (8) in the shell (1), pressing body (8) is connected with shell (1) by hinge (7), torsionspring (2) is arranged on the axle of hinge (7), and an end of torsionspring (2) suppresses on the inner top surface of pressing body (8), and the other end suppresses on the Right Inboard wall of shell (1), the left side of pressing body (8) is provided with groove (9), and is arranged on first on shell (1) inner left wall, two projectioies (5,6) cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101696645A CN101376039B (en) | 2008-10-08 | 2008-10-08 | Negative-pressure type venous tranfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101696645A CN101376039B (en) | 2008-10-08 | 2008-10-08 | Negative-pressure type venous tranfusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101376039A true CN101376039A (en) | 2009-03-04 |
| CN101376039B CN101376039B (en) | 2011-11-23 |
Family
ID=40419885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101696645A Expired - Fee Related CN101376039B (en) | 2008-10-08 | 2008-10-08 | Negative-pressure type venous tranfusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101376039B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104337696A (en) * | 2013-07-31 | 2015-02-11 | 许界平 | Soft medicine bag with needle |
| CN106063957A (en) * | 2015-04-24 | 2016-11-02 | 北京万生人和科技有限公司 | A kind of venipuncture needle |
-
2008
- 2008-10-08 CN CN2008101696645A patent/CN101376039B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104337696A (en) * | 2013-07-31 | 2015-02-11 | 许界平 | Soft medicine bag with needle |
| CN106063957A (en) * | 2015-04-24 | 2016-11-02 | 北京万生人和科技有限公司 | A kind of venipuncture needle |
| CN106063957B (en) * | 2015-04-24 | 2022-07-19 | 北京万生人和科技有限公司 | Vein puncture needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101376039B (en) | 2011-11-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20111123 Termination date: 20121008 |