CN2732260Y - Improved venous retention needle - Google Patents
Improved venous retention needle Download PDFInfo
- Publication number
- CN2732260Y CN2732260Y CN 200420092002 CN200420092002U CN2732260Y CN 2732260 Y CN2732260 Y CN 2732260Y CN 200420092002 CN200420092002 CN 200420092002 CN 200420092002 U CN200420092002 U CN 200420092002U CN 2732260 Y CN2732260 Y CN 2732260Y
- Authority
- CN
- China
- Prior art keywords
- needle
- guide pin
- improved venous
- venous detaining
- calparine cap
- 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 an improved venous retaining needle which comprises a venous retaining needle and a heparin cap which is sheathed with the venous retaining needle. The improved venous retaining needle is characterized in that the back end of the retaining needle seat is sheathed with a sealing sleeve which is used for blocking back blood, and the end surface of the sealing sleeve is provided with a puncturing slit. The improved venous retaining needle provided by the utility model has simple production process, cabinet size and convenient carryover, and accomplishes automatic hemostasis seal when a puncturing needle is pulled out and transfuses once again; the improved venous retaining needle does not have noxious residue generated by applying adhesive. The probability of blood polluted is reduced, the operation is portable and quick, and the puncturing needle is processed unflappably, which avoids operators damaging, and the improved venous retaining needle is used conveniently and comfortably by patients.
Description
Technical field
This utility model relates to a kind of improved venous detaining needle, belongs to technical field of medical instruments.
Background technology
Calparine cap is applied to venous detaining needle, the connection of occluding vascular and air, can play the preservation heparin liquid, the anticoagulant effect, the sealing plug of calparine cap can penetrate syringe needle repeatedly, be convenient to inject medicine and be connected infusion pipeline, the venous detaining needle of market use is now all moulded calparine cap the core pipe and is inserted needle stand, in the mode that is threaded needle stand is fastened on the calparine cap body, the calparine cap afterbody is established rubber stopper, rubber stopper is aided with adhesive by cover plastic bushing externally, and pyrocondensation is fixed, complex manufacturing, and be difficult to miniaturization, (application number: 200420016335.4), the sealing plug is directly fixing by calparine cap and indwelling needle stand once to disclose a kind of venous detaining needle at the beginning of the patent applicant 2004, save plastic bushing, avoided use adhesive and pyrocondensation technology.
Summary of the invention
The purpose of this utility model is to provide a kind of improved venous detaining needle, realizing that original sealing plug by calparine cap with when keeping somewhere the direct fixed function of needle stand, realizes the function of blocking-up blood back sealing when pin is pulled out in puncture, simultaneously the improvement by structure, make operation lighter, comfortable.
The technical solution of the utility model is achieved in that this improved venous detaining needle, basic structure is made up of venous detaining needle and belled calparine cap, it is characterized in that: the sealing shroud of remaining needle base rear end socket blocking-up blood back, the end face of sealing shroud is provided with the puncture crack.
The calparine cap endoporus of described improved venous detaining needle bottom is provided with sealing plug and guide pin pipe, and the guide pin pipe is the hollow ledge structure, the puncture crack of the sealing shroud end by the blocking-up blood back with keep somewhere the needle stand inner hole sleeve and connect.
Calparine cap one side of described improved venous detaining needle is provided with the carriage that the bottom surface tilts, and the carriage front end is provided with and the co-axial guide pin ring of remaining needle, and guide pin ring rear horizontal direction is the wedge surface structure.
The guide pin handle that the indwelling needle stand one side setting of described improved venous detaining needle cooperates with wedge surface.
The calparine cap bottom of described improved venous detaining needle is provided with plastic flexible pipe, clamp and joint.
Improved static vein provided by the utility model, production technology is simple, the toxic residue that no application of adhesive produces, volume is small and exquisite, is easy to carry, automatic hemostatic seal when pin is pulled out in puncture, the probability of blood contamination reduces; Make operation lighter, quick, and handle puncture needle calmly, and avoid the operator to come to harm, the patient is easy to use comfortable.
Description of drawings
Fig. 1 is the main cutaway view of improved venous detaining needle
Fig. 2 is the main cutaway view of the sealing shroud of blocking-up blood back among Fig. 1
Fig. 3 is the left view of Fig. 2
Fig. 4 is the outward appearance front view of venous detaining needle
Fig. 5 is the vertical view of Fig. 4
Fig. 6 is the right view of Fig. 4
Fig. 7 is the structural representation of another embodiment of the present utility model
Among the figure: 1, calparine cap 2, remaining needle 1-1, pin hole 1-2, carriage 1-3, guide pin ring 1-4, sealing plug 1-5, guide pin pipe 1-8, flexible pipe 2-1, indwelling needle stand 2-2, indwelling needle tubing 2-3, sealing shroud 2-4, puncture crack 2-5, guide pin handle
The specific embodiment
Fig. 1 is that this uses novel venous detaining needle master cutaway view, basic structure comprises: remaining needle 2 and belled calparine cap 1, keep somewhere needle tubing 2-2 and keep somewhere needle stand 2-1 and be structure as a whole, the sealing shroud 2-3 that keeps somewhere needle stand 2-1 rear end socket blocking-up blood back, sealing shroud end face shown in Figure 3 is provided with puncture crack 2-4, the closed blocking-up of crack blood back when puncture needle is extracted, again with calparine cap 1 socket, this moment, crack was strutted as shown in Figure 2; Calparine cap 1 bottom is provided with pin hole 1-1, and the pin hole inboard is provided with sealing plug 1-4; Between sealing shroud 2-3 and the sealing plug 1-4 guide pin pipe 1-5 is set, the guide pin pipe has guaranteed sealing property by the crack 2-4 and indwelling needle stand 2-1 endoporus socket pressing of sealing shroud 2-3 end.The fluid sealant that puncture needle penetrates the calparine cap end during transfusion enters the guide pin pipe and gets final product.
Elongation technology scheme of the present utility model is that location and locking bracket 1-2 are set on calparine cap, when the remaining needle calparine cap of packing into, the rotation remaining needle, the horizontal wedge surface that is arranged on the guide pin ring 1-3 on the carriage contacts slip with the guide pin handle 2-5 side cooperation that is arranged on indwelling needle stand one side, remaining needle moves vertically under the effect of wedge power, make to keep somewhere between needle stand 2-1, sealing shroud 2-3, guide pin pipe 1-5, sealing plug 1-4 and the calparine cap endoporus and further compress sealed against leakage.
The connected mode that another elongation technology scheme of the present utility model is calparine cap and venous detaining needle is constant, plug position, calparine cap bottom is provided with plastic flexible pipe 1-8, clamp and joint, its joint can be connected with transfusion device, also can be set to the three way cock and be connected with miscellaneous equipment.
Claims (5)
1, a kind of improved venous detaining needle, basic structure is made up of venous detaining needle (2) and belled calparine cap (1), it is characterized in that: keep somewhere the sealing shroud (2-3) of needle stand (2-1) rear end socket blocking-up blood back, the end face of sealing shroud is provided with the puncture crack.
2, according to the described improved venous detaining needle of claim 1, it is characterized in that: described calparine cap (1) endoporus bottom is provided with sealing plug (1-4) and guide pin pipe (1-5), the guide pin pipe is the hollow ledge structure, the puncture crack (2-4) of sealing shroud (2-3) end by the blocking-up blood back with keep somewhere the socket of needle stand (2-1) endoporus.
3, according to the described improved venous detaining needle of claim 1, it is characterized in that: described calparine cap (1) one side is provided with the carriage (1-2) that the bottom surface tilts, the carriage front end is provided with and the co-axial guide pin ring of remaining needle (1-3), and guide pin ring rear horizontal direction is the wedge surface structure.
4, according to the described improved venous detaining needle of claim 1, it is characterized in that: the guide pin handle (2-5) that described indwelling needle stand (2-1) side setting cooperates with wedge surface.
5, according to the described improved venous detaining needle of claim 1, it is characterized in that: described calparine cap bottom is provided with plastic flexible pipe (1-8), clamp and joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092002 CN2732260Y (en) | 2004-10-29 | 2004-10-29 | Improved venous retention needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092002 CN2732260Y (en) | 2004-10-29 | 2004-10-29 | Improved venous retention needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2732260Y true CN2732260Y (en) | 2005-10-12 |
Family
ID=35068107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092002 Expired - Fee Related CN2732260Y (en) | 2004-10-29 | 2004-10-29 | Improved venous retention needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2732260Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493649C (en) * | 2006-01-06 | 2009-06-03 | 威海洁瑞医用制品有限公司 | Hemostatic seal plug of vein-retaining needle and method for producing same |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
-
2004
- 2004-10-29 CN CN 200420092002 patent/CN2732260Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493649C (en) * | 2006-01-06 | 2009-06-03 | 威海洁瑞医用制品有限公司 | Hemostatic seal plug of vein-retaining needle and method for producing same |
| CN109481840A (en) * | 2018-12-21 | 2019-03-19 | 锦州诺德医疗器械科技有限公司 | A kind of calparine cap |
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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 |