CN204411413U - A kind of remaining needle - Google Patents
A kind of remaining needle Download PDFInfo
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- CN204411413U CN204411413U CN201520030900.0U CN201520030900U CN204411413U CN 204411413 U CN204411413 U CN 204411413U CN 201520030900 U CN201520030900 U CN 201520030900U CN 204411413 U CN204411413 U CN 204411413U
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- storage cylinder
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Abstract
A kind of remaining needle, comprise needle stand, flexible pipe and anti-blood fasten safety head, wherein said anti-blood is fastened safety head and is placed in needle stand infuses cage body on accent and the connector that can with the transfusion accent outer wall of needle stand be connected integrated with cage body by having seal cover that elastic medical material makes, an enclosed type liquid storage cylinder for generation of malleation is provided with in described cage body cavity, and the bottom surface of this liquid storage cylinder is a flaky texture, this flaky texture be punctured acupuncture break after formed micropore be formed as a micropore permeation structure by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in flexible pipe, and after storing malleation medicinal liquid in liquid storage cylinder, this micropore can open at positive pressure and forms microchannel and the medicinal liquid in liquid storage cylinder slowly dropped in flexible pipe and presses to stop blood backflow in flexible pipe to vein blood vessel, avoid the formation of thrombosis.It is simple that the purpose of this utility model is to provide a kind of novel structure, and cost of manufacture is cheap, and has the remaining needle that effectively and for a long time can prevent blood backflow of reliable positive-pressure function.
Description
Technical field
This utility model relates to remaining needle, belongs to technical field of medical instruments.
Background technology
All medicinal liquids almost can be inputted human body by blood vessel by transfusion, realize treatment and prophylactic object, in clinical, for avoiding repeatedly the puncture damage causing blood vessel and the misery reducing patient, also for alleviating the manipulation strength of medical personnel, dynamic remaining needle (pipe) technology is generally employed.The dynamic remaining needle technology of present Clinical practice is by heparin sealing cap mostly, puncture needle, Paracentesis needle holder, retaining needle flexible tube, indwelling needle, indwelling needle-protecting sleeve forms, its remaining needle does not all have positive pressure devices substantially, in use need to use heparin sodium to close indwelling needle tubing, to reach the object not producing thromboembolism in indwelling needle tubing, all need to use acupuncture to be connected in transfusion with the process of indwelling needle tubing being carried out to anticoagulant lock simultaneously, so virtually add workload and the labor intensity of nurse, also there is the danger that medical personnel are accidentally injured by acupuncture simultaneously, for the existence of the problems referred to above, Chinese patent CN103330970A discloses a kind of name and is called that self-styled anti-blood fastens the patent of venous detaining needle and using method thereof, this self-styled anti-blood is fastened venous detaining needle and is comprised needle stand, be arranged on the conduit of needle stand front end and the puncture needle core axially across described needle stand and conduit, the inner chamber of described needle stand is cut off part and is divided into plemum and transfusing chamber two parts, described transfusing chamber is communicated with described conduit, described obstruct section adopts medical encapsulant, described obstruct section is provided with seepage channel, and for when described plemum and transfusing chamber exist pressure differential, the liquid in described plemum can flow into described transfusing chamber through described seepage channel automatic slowly.It mainly utilizes the liquid in plemum slowly to flow into transfusing chamber by described seepage channel; Along with the pressure differential between plemum and transfusing chamber reduces, percolation flow velocity also can slow down thereupon, makes described plemum can maintain malleation for a long time.But this patent application has following two defects: 1. the formation of plemum is in needle stand, and cause complex process, manufacturing cost is high; 2. seepage channel is formed by threading on isolated part, increase difficulty of processing on the one hand, also be the mode of most importantly this line infiltration on the other hand, because single has the possibility coming off and be dissolved in needle stand cavity, fibrous foreign matter is caused to enter in blood of human body with liquid, serious harm health.
Summary of the invention
The purpose of this utility model is for above-mentioned existing problems and deficiency, provides that a kind of novel structure is simple, cost of manufacture is cheap, use safety have the remaining needle that effectively and for a long time can prevent blood backflow of reliable positive-pressure function.
The technical solution of the utility model is achieved in that
Remaining needle described in the utility model, comprise needle stand, flexible pipe and anti-blood fasten safety head, wherein said anti-blood is fastened safety head and is placed in needle stand infuses cage body on accent and the connector that can with the transfusion accent outer wall of needle stand be connected integrated with cage body by having seal cover that elastic medical material makes, it is characterized in that being provided with an enclosed type liquid storage cylinder for generation of malleation in described cage body cavity, and the bottom surface of this liquid storage cylinder is a flaky texture, this flaky texture be punctured acupuncture break after formed micropore be formed as a micropore permeation structure by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in flexible pipe, and after storing malleation medicinal liquid in liquid storage cylinder, this micropore can open at positive pressure and forms microchannel and the medicinal liquid in liquid storage cylinder slowly dropped in flexible pipe and presses to stop blood backflow in flexible pipe to vein blood vessel, avoid the formation of thrombosis.
Wherein, both can be above-mentioned needle stand being pen type needle stand, also can be above-mentioned needle stand be Y type needle stand.
Above-mentioned enclosed type liquid storage cylinder is made up of with the lower seal being installed on cage body cavity bottom the upper sealing member being fixed on cage body cavity top.
In order to make structure of the present utility model varied, both can be that above-mentioned lower seal inner sleeve is fixed in the lower openings of above-mentioned cage body cavity, also can be above-mentioned lower seal be fixed in above-mentioned cage body cavity correspond to connector position cavity shoulder on, can also be that above-mentioned lower seal wrap is placed in the lower openings of above-mentioned cage body cavity.
This utility model is owing to adopting the structure of the safety head of tool liquid storage cylinder, both safety head can have been utilized reliably to seal indwelling needle cavity, ensure the phenomenon that there will not be after using puncture needle to puncture outside blood backflow indwelling needle cavity, both made medical personnel can extracting easily with one-handed performance puncture needle, effectively prevent again the cross infection of patient and medical personnel, nor there will be the phenomenon of tenderness patient's blood vessel, and avoid surrounding to the pollution of medicinal liquid and blood, reach the object of safe infusion.The non-return valve function of the micropore on the flaky texture between the malleation chamber utilizing again liquid storage cylinder to be formed after having infused dexterously and its bottom surface, the medicinal liquid of this malleation chamber indoor storage is utilized slowly to permeate drippage along the puncture micropore bottom liquid storage cylinder, the backflow of effectively and reliably anti-Hemostatic Oral Liquid, and operation is quite simple, be easy to grasp, be conducive to applying at each different medical unit.During its operational applications, only need when medicinal liquid be totally lost soon, in time extracting transfusion needle, transfusion needle is stopped a little in liquid storage cylinder and adjusts the adjustment button of transfusion device, adjustment button is made to make suddenly the medicinal liquid in tube for transfusion produce flashy outburst flowing and inject in liquid storage cylinder to last pushing away, make the medicinal liquid storing malleation in this liquid storage cylinder, thus the gas compressed in this liquid storage cylinder forms enough large malleation, and after extracting transfusion needle, medicinal liquid in this liquid storage cylinder is under its positive pressure, pin and transfusion needle can be punctured from it lentamente to pierce through the miniature pierced holes formed after bottom it and drop in retaining needle flexible tube and continue to press to vein blood vessel, until form a kind of poised state when pressure in liquid storage cylinder is equal with the blood pressure in human vein, effective guarantee blood also can not produce backflow for a long time, reliably and safely avoid the formation of thrombosis, and (most of tube-sealing solution is anticoagulant not need to adopt anti-freezing liquid tube sealing, some patient prohibits the use), both the labor intensity of nurse had been alleviated, reduce again the medical expense of patient, and this utility model structure and single reliable, cost of manufacture is cheap, practical, be beneficial to and popularize.
Below in conjunction with accompanying drawing, this utility model is further described.
Accompanying drawing explanation
Fig. 1 is the perspective view of this utility model scheme 1.
Fig. 2 is the cross-sectional view of this utility model scheme 1.
Fig. 3 is the perspective view of this utility model scheme 2.
Fig. 4 is the cross-sectional view of this utility model scheme 2.
Fig. 5 is the perspective view of this utility model scheme 3.
Fig. 6 is the cross-sectional view of this utility model scheme 3.
Fig. 7 is the perspective view of this utility model scheme 4.
Fig. 8 is the cross-sectional view of this utility model scheme 4.
Fig. 9 is the perspective view of this utility model using state 1.
Figure 10 is the decomposition texture schematic diagram of this utility model using state 1.
Figure 11 is the cross-sectional view of this utility model using state 1.
Figure 12 is the perspective view of this utility model using state 2.
Figure 13 is the decomposition texture schematic diagram of this utility model using state 2.
Figure 14 is the cross-sectional view of this utility model using state 2.
Figure 15 is the perspective view of this utility model using state 3.
Figure 16 is the decomposition texture schematic diagram of this utility model using state 3.
Figure 17 is the cross-sectional view of this utility model using state 3.
Figure 18 is the perspective view of this utility model using state 4.
Figure 19 is the decomposition texture schematic diagram of this utility model using state 4.
Figure 20 is the cross-sectional view of this utility model using state 4.
Detailed description of the invention
As shown in Fig. 1-Figure 20, remaining needle described in the utility model, comprise needle stand 3, flexible pipe 4 and anti-blood fasten safety head, wherein said anti-blood is fastened safety head and is placed in needle stand 3 infuses cage body 1 on accent and the connector 2 that can with the transfusion accent outer wall of needle stand 3 be connected integrated with cage body 1 by having seal cover that elastic medical material makes, an enclosed type liquid storage cylinder 13 for generation of malleation is provided with in described cage body 1 cavity, and the bottom surface of this liquid storage cylinder 13 is a flaky texture, this flaky texture be punctured acupuncture break after formed micropore be formed as a micropore permeation structure by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in flexible pipe 4, and after storing malleation medicinal liquid in liquid storage cylinder 13, this micropore can open at positive pressure and forms microchannel and the medicinal liquid in liquid storage cylinder slowly dropped in flexible pipe 4 and presses to stop blood backflow in flexible pipe 4 to vein blood vessel, avoid the formation of thrombosis.Wherein, both can be above-mentioned needle stand 3 being pen type needle stand, also can be above-mentioned needle stand 3 be Y type needle stand.Above-mentioned enclosed type liquid storage cylinder is made up of with the lower seal 12 being installed on cage body 1 cavity bottom the upper sealing member 11 being fixed on cage body 1 cavity top.And, in order to make structure of the present utility model varied, both can be that above-mentioned lower seal 12 inner sleeve is fixed in the lower openings of above-mentioned cage body 1 cavity, also can be above-mentioned lower seal 12 be fixed in above-mentioned cage body 1 cavity correspond to connector 2 position cavity shoulder on, can also be that above-mentioned lower seal 12 wrap is placed in the lower openings of above-mentioned cage body 1 cavity.
The using method of remaining needle described in the utility model, is characterized in: terminate the tube sealing operation after transfusion and comprise the steps:
I. part extracts the infusion hole of transfusion needle to described transfusion needle front end in liquid storage cylinder 13;
II. the roller extruding tube for transfusion of the actuator of rolling transfusion device, make the medicinal liquid pressurized in tube for transfusion, the infusion hole through described transfusion needle front end flows into liquid storage cylinder 13, thus makes the pressure in described liquid storage cylinder 13 be greater than the pressure in indwelling needle cavity bottom space;
III. all extract described transfusion needle, owing to there is pressure differential between described liquid storage cylinder 13 and indwelling needle cavity bottom space, the medicinal liquid in described liquid storage cylinder 13 flows into retaining needle flexible tube through micropore automatic slowly.
This utility model is owing to adopting the structure of the safety head of tool liquid storage cylinder, both safety head can have been utilized reliably to seal indwelling needle cavity, ensure the phenomenon that there will not be after using puncture needle to puncture outside blood backflow indwelling needle cavity, both made medical personnel can extracting easily with one-handed performance puncture needle, effectively prevent again the cross infection of patient and medical personnel, nor there will be the phenomenon of tenderness patient's blood vessel, and avoid surrounding to the pollution of medicinal liquid and blood, reach the object of safe infusion.The non-return valve function of the micropore on the flaky texture between the malleation chamber utilizing again liquid storage cylinder to be formed after having infused dexterously and its bottom surface, the medicinal liquid of this malleation chamber indoor storage is utilized slowly to permeate drippage along the puncture micropore bottom liquid storage cylinder, the backflow of effectively and reliably anti-Hemostatic Oral Liquid, and operation is quite simple, be easy to grasp, be conducive to applying at each different medical unit.During its operational applications, only need when medicinal liquid be totally lost soon, in time extracting transfusion needle, transfusion needle is stopped a little in liquid storage cylinder and adjusts the adjustment button of transfusion device, adjustment button is made to make suddenly the medicinal liquid in tube for transfusion produce flashy outburst flowing and inject in liquid storage cylinder to last pushing away, make the medicinal liquid storing malleation in this liquid storage cylinder, thus the gas compressed in this liquid storage cylinder forms enough large malleation, and after extracting transfusion needle, medicinal liquid in this liquid storage cylinder is under its positive pressure, pin and transfusion needle can be punctured from it lentamente to pierce through the miniature pierced holes formed after bottom it and drop in retaining needle flexible tube and continue to press to vein blood vessel, until form a kind of poised state when pressure in liquid storage cylinder is equal with the blood pressure in human vein, effective guarantee blood also can not produce backflow for a long time, reliably and safely avoid the formation of thrombosis, and (most of tube-sealing solution is anticoagulant not need to adopt anti-freezing liquid tube sealing, some patient prohibits the use), both the labor intensity of nurse had been alleviated, reduce again the medical expense of patient, and this utility model structure and single reliable, cost of manufacture is cheap, practical, be beneficial to and popularize.
This utility model is described by embodiment, but this utility model is not construed as limiting, with reference to description of the present utility model, other changes of the disclosed embodiments, as the professional person for this area easily expects, such change should belong within the scope of this utility model claim restriction.
Claims (7)
1. a remaining needle, comprise needle stand (3), flexible pipe (4) and anti-blood fasten safety head, wherein said anti-blood is fastened safety head and is placed in needle stand (3) infuses cage body (1) on accent and the connector (2) that can with the transfusion accent outer wall of needle stand (3) be connected integrated with cage body (1) by having seal cover that elastic medical material makes, it is characterized in that being provided with an enclosed type liquid storage cylinder (13) for generation of malleation in described cage body (1) cavity, and the bottom surface of this liquid storage cylinder (13) is a flaky texture, this flaky texture be punctured acupuncture break after formed micropore be formed as a micropore permeation structure by the elasticity of itself, after puncture needle is extracted, this micropore automatic retracting and effectively stop the blood backflow in flexible pipe (4), and after storing malleation medicinal liquid in liquid storage cylinder (13), this micropore can open at positive pressure and forms microchannel and the medicinal liquid in liquid storage cylinder slowly dropped in flexible pipe (4) and presses to stop blood backflow in flexible pipe (4) to vein blood vessel, avoid the formation of thrombosis.
2. remaining needle according to claim 1, is characterized in that above-mentioned needle stand (3) is for pen type needle stand.
3. remaining needle according to claim 1, is characterized in that above-mentioned needle stand (3) is for Y type needle stand.
4. remaining needle according to claim 1, is characterized in that above-mentioned enclosed type liquid storage cylinder is made up of the upper sealing member (11) being fixed on cage body (1) cavity top and the lower seal (12) that is installed on cage body (1) cavity bottom.
5. remaining needle according to claim 4, is characterized in that above-mentioned lower seal (12) inner sleeve is fixed in the lower openings of above-mentioned cage body (1) cavity.
6. remaining needle according to claim 4, is characterized in that on the cavity shoulder corresponding to connector (2) position that above-mentioned lower seal (12) is fixed in above-mentioned cage body (1) cavity.
7. remaining needle according to claim 4, is characterized in that above-mentioned lower seal (12) wrap is placed in the lower openings of above-mentioned cage body (1) cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520030900.0U CN204411413U (en) | 2015-01-17 | 2015-01-17 | A kind of remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520030900.0U CN204411413U (en) | 2015-01-17 | 2015-01-17 | A kind of remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204411413U true CN204411413U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520030900.0U Active CN204411413U (en) | 2015-01-17 | 2015-01-17 | A kind of remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204411413U (en) |
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2015
- 2015-01-17 CN CN201520030900.0U patent/CN204411413U/en active Active
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| GR01 | Patent grant |