CN201643333U - Blood return preventing vein detained needle - Google Patents
Blood return preventing vein detained needle Download PDFInfo
- Publication number
- CN201643333U CN201643333U CN2010201517900U CN201020151790U CN201643333U CN 201643333 U CN201643333 U CN 201643333U CN 2010201517900 U CN2010201517900 U CN 2010201517900U CN 201020151790 U CN201020151790 U CN 201020151790U CN 201643333 U CN201643333 U CN 201643333U
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- CN
- China
- Prior art keywords
- guide tube
- catheter block
- tube seat
- needle
- joint
- 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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Abstract
The utility model discloses a blood return preventing vein detained needle, which comprises a cylinder, a detained guide tube, a guide tube seat, a cylinder seat and a return stopper. A rivet is arranged between the detained guide tube and the guide tube seat. The blood return preventing vein detained needle is characterized in that a seal pad sealing along inside of the guide tube seat is further disposed inside the guide tube seat, a valve core and a spring are further disposed inside the guide tube seat, a guide tube seat joint is additionally arranged outside the return stopper, two standard Luer connectors are disposed on the guide tube seat joint, namely an outer conical locking connector and an inner conical locking connector, and a notch arranged at the end of the outer conical locking connector is communicated with an inner cavity of the guide tube seat joint. The blood return preventing vein detained needle has the functions of facilitating operations of nurses, preventing blood return and avoiding blood cross infection, can prevent blood return, facilitate tube detaining and start operation and reduce use of tube seal medicaments, and greatly reduces risks of thrombus formation.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, is specifically related to a kind of venous detaining needle that prevents blood back.
Background technology
Venous detaining needle is a kind of novel disposable use injection puncture instrument (belonging to III class/6815 class medical apparatus and instruments), abroad generation 30 or 40 years in last century existing the use, this technology in last century late nineteen eighties enter China.This product more and more is subjected to hospital clinical and patient's favor, and market prospect is wide.At present, the pattern of domestic venous detaining needle product mainly contains two classes, and a class is enclosed type (a Y type), and a class is straight type.
Straight type is used early, and it has advantages such as conduit cavity is big, and fluid passage is short, has reduced the thrombosed risk of blood coagulation effectively; But because it is an open type, i.e. behind the dial-out puncture needle tubing, the conduit cavity of imbedding human vein directly communicates with the external world, and easily outflow is external for blood when operating like this, operation is protected caused infection easily.
The Y type is by the exploitation of external advanced company, and its principle is that traditional straight type remaining needle is combined with venoclysis needle, has increased the plug, transfusion long duct and other the general connector that are used to seal on the basis of straight type.It has easy to operate, prevents the function of blood back.But it also has insufficient place, because it has long fluid passage (being similar to the long duct of venoclysis needle), in the indwelling process, has increased the tube sealing drug dose, has strengthened the thrombosed risk of blood coagulation.
The utility model content
Technical problem to be solved in the utility model is how to provide a kind of both easy to operate, has short fluid passage again, prevents the novel venous detaining needle of blood back simultaneously again.
The technical problem that this utility model proposed is to solve like this: construct a kind of venous detaining needle that prevents blood back, comprise needle tubing, inlying catheter, catheter block, the needle tubing seat and the plug that refluxes, wherein between inlying catheter and catheter block, be provided with rivet, it is characterized in that: in catheter block, also be provided with along the sealing gasket that seals in the catheter block, in catheter block, also be provided with spool and spring, and increase a catheter block joint beyond the Great Wall in described backflow, described catheter block joint is provided with the female Luer of two standards, be respectively outer cone locked joints and female cone locked joints, the cone joint end has a notch outside, and notch communicates with the inner chamber that catheter block is held joint.
According to a kind of venous detaining needle that prevents blood back described in the utility model, it is characterized in that also comprise protective sleeve, this protective sleeve covers needle tubing.
According to a kind of venous detaining needle that prevents blood back described in the utility model, it is characterized in that, comprise that also one is arranged on the block of catheter block joint.
The beneficial effects of the utility model are: 1, be convenient to nurse operation, prevent that blood from refluxing, and avoids blood cross-infection.2, the shortest fluid passage and valve function prevents that blood from refluxing, and conveniently keeps somewhere tube sealing, enables operation, reduced the tube sealing amount of drug.3, the shortest fluid passage and anti-adverse current function greatly reduces thrombotic risk.
Description of drawings
Fig. 1 is a structural representation provided by the utility model
Fig. 2 is the internal structure sketch map of Fig. 1
External structure when Fig. 3 is this utility model normal infusion
Internal structure sketch map when Fig. 4 is this utility model normal infusion
Fig. 5 is that the external structure sketch map when withdrawing from needle tubing is finished in this utility model puncture
Fig. 6 is that the internal structure sketch map when withdrawing from needle tubing is finished in this utility model puncture
Wherein, 1, block, 2, the catheter block joint, 3, the plug that refluxes, 4, the needle tubing seat, 5, sealing gasket, 6, spool, 7, spring, 8, catheter block, 9, rivet, 10, inlying catheter, 11, needle tubing, 12, protective sleeve.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described further.
As shown in Figure 1, a kind of venous detaining needle that prevents blood back is provided, comprise needle tubing 11, inlying catheter 10, catheter block 8, the needle tubing seat 4 and the plug 3 that refluxes, wherein between inlying catheter 10 and catheter block 8, be provided with rivet 9, also in catheter block 8, also be provided with along the sealing gasket 5 of sealing in the catheter block 8, in catheter block 8, also be provided with spool 6 and spring 7, and outside described backflow plug 3, increase a catheter block joint 2, described catheter block joint 2 is provided with the female Luer of two standards, be respectively outer cone locked joints and female cone locked joints, the cone joint end has a notch outside, and notch communicates with the inner chamber of catheter block joint 2.Finish venipuncture by the remaining needle routine operation, transfer to needle tubing after observing blood back, sealing gasket 5 is sealing needle tubing through hole under himself elastic reaction, seal at the effect lower seal pad 5 of spring and the interior edge of catheter block 8 simultaneously, make blood rest on catheter block 8 inner chambers, can not flow out, pollute patient and medical worker.When transfusion, the female cone joint of catheter block joint 2 is connected with transfusion device, outer cone locked joints with catheter block joint 2 cooperates with the female cone hole of catheter block 8 again, screw catheter block joint 2, sealing gasket 5 is backed down in its outer cone end, the notch of the end of catheter block joint 2 just communicates with catheter block 8 inner chambers like this, goes into a unimpeded infusion channel.After transfusion is finished, revolve and move back catheter block joint 5, its outer cone joint is return, and with spool and sealing gasket fight back, catheter block 8 is in air-tight state to sealing gasket 5 again under the effect of spring 7.
The venous detaining needle of the prevented blood back that provides according to present technique also comprises protective sleeve 12, and this protective sleeve 12 covers needle tubing 11.
According to a kind of venous detaining needle that prevents blood back that present technique provides, comprise that also one is arranged on the block 1 of catheter block joint.
This apparatus is a kind ofly can be retained in patient's arteriovenous clinically, the novel infusion utensil of repeatedly infuse, blood transfusion or injectable drug being used.After needle tubing injects the human peripheral blood pipe, needle tubing is pulled away blood vessel, the conduit of needle tubing outside still is retained in the peripheral blood vessel, for clinically repeatedly infuse, blood transfusion or injectable drug use.Its use has alleviated patient's puncture misery and medical worker's nursing amount greatly.
Claims (3)
1. venous detaining needle that can prevent blood back, comprise needle tubing (11), inlying catheter (10), catheter block (8), the needle tubing seat (4) and the plug (3) that refluxes, wherein between inlying catheter (10) and catheter block (8), be provided with rivet (9), it is characterized in that: in catheter block (8), also be provided with along the sealing gasket (5) of sealing in the catheter block (8), in catheter block (8), also be provided with spool (6) and spring (7), and outside described backflow plug (3), increase a catheter block joint (2), described catheter block joint (2) is provided with the female Luer of two standards, be respectively outer cone locked joints and female cone locked joints, the cone joint end has a notch outside, and notch communicates with the inner chamber of catheter block joint (2).
2. a kind of venous detaining needle that prevents blood back according to claim 1 is characterized in that, also comprises protective sleeve (12), and this protective sleeve (12) covers needle tubing (11).
3. a kind of venous detaining needle that prevents blood back according to claim 1 is characterized in that, comprises that also one is arranged on the block (1) that catheter block joint (2) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201517900U CN201643333U (en) | 2010-04-06 | 2010-04-06 | Blood return preventing vein detained needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201517900U CN201643333U (en) | 2010-04-06 | 2010-04-06 | Blood return preventing vein detained needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201643333U true CN201643333U (en) | 2010-11-24 |
Family
ID=43108528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201517900U Expired - Fee Related CN201643333U (en) | 2010-04-06 | 2010-04-06 | Blood return preventing vein detained needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201643333U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423762A (en) * | 2011-08-03 | 2012-04-25 | 李林风 | Improved indwelling catheter embolism clearing device and assembling method thereof |
| CN103272305A (en) * | 2013-05-15 | 2013-09-04 | 浙江康泰医疗器械有限公司 | Novel pen type indwelling needle |
| CN105326487A (en) * | 2015-12-12 | 2016-02-17 | 广州妥谱医疗设备有限公司 | Arterial indwelling needle provided with hemostasis valve and replaceable negative-pressure blood return cavity |
| CN109550104A (en) * | 2019-01-27 | 2019-04-02 | 北京仰生恒泰科技有限责任公司 | A kind of functional intravenous guide tube device blocked |
| CN109621082A (en) * | 2019-01-31 | 2019-04-16 | 永岳医疗科技(昆山)有限公司 | A kind of buttferfly-type reverse flow resistant indwelling needle |
-
2010
- 2010-04-06 CN CN2010201517900U patent/CN201643333U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423762A (en) * | 2011-08-03 | 2012-04-25 | 李林风 | Improved indwelling catheter embolism clearing device and assembling method thereof |
| CN103272305A (en) * | 2013-05-15 | 2013-09-04 | 浙江康泰医疗器械有限公司 | Novel pen type indwelling needle |
| CN105326487A (en) * | 2015-12-12 | 2016-02-17 | 广州妥谱医疗设备有限公司 | Arterial indwelling needle provided with hemostasis valve and replaceable negative-pressure blood return cavity |
| CN109550104A (en) * | 2019-01-27 | 2019-04-02 | 北京仰生恒泰科技有限责任公司 | A kind of functional intravenous guide tube device blocked |
| CN109550104B (en) * | 2019-01-27 | 2024-01-26 | 浙江百获健康科技有限公司 | Vein catheter device capable of plugging |
| CN109621082A (en) * | 2019-01-31 | 2019-04-16 | 永岳医疗科技(昆山)有限公司 | A kind of buttferfly-type reverse flow resistant indwelling needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20190406 |