CN2126053U

CN2126053U - Blood vessel puncture needle

Info

Publication number: CN2126053U
Application number: CN 92214854
Authority: CN
Inventors: 孙成华; 肖渊墨; 刘树正
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-26
Filing date: 1992-06-26
Publication date: 1992-12-30

Abstract

The utility model relates to a blood vessel puncture needle for clinic medical treatment, comprising a plurality of needle heads that are sheathed by stage according to models and specifications from large to small. Each stage of sheathed needle bars of the needle heads form sliding fit; the model is smaller, and the needle head and the needle bar are longer; the use of the blood vessel puncture needle solves the problems that the position of the blood vessel is difficult to find when the blood vessel puncture is conducted, repeated times of puncture are needed, the chance of injuring tissue is big, etc. The blood vessel puncture needle can easily conduct the puncture of external jugular vein and the internal jugular vein, and also be selectively used for the infusion and blood transfusion for the periphery vein puncture pipe arranging.

Description

Blood vessel puncture needle

This utility model relates to a kind of angiographic neeclle of using clinically.

Medical treatment is at present gone up in measuring central venous pressure, both at home and abroad the angiographic neeclle that uses is two kinds of trocar sheath puncture needle and pin interpolation pipe puncture needles, these two kinds of puncture needles are when puncture, after all need going to visit the position of accurate blood vessel with a thinner syringe needle (as 7-9 number), transfer to syringe needle again, change thicker puncture needle (as No. 22 pins) along the locality inserting needle of souning out.Often need trying on of repeated multiple times with the method, the number of times of puncture is many more, and the chance of damage carotid artery, pleura, lung tissue and nerve is just big more, and the case of failure is also more relatively.Because traditional puncture needle is thicker, generally only limits to do internal jugular vein puncture clinically.

The purpose of this utility model provides a kind of multistage angiographic neeclle, can puncture to blood vessel exactly with it, improves the success rate of puncture, and can be used for the external jugular vein puncture.

This utility model is achieved in that the shank with the ting model syringe needle inserts from needle stand in the shank of big model syringe needle, forms multistage angiographic neeclle by each model specification from big being nested to little syringe needle one-level one-level like this.

This utility model is owing to be that multistage syringe needle is nested and forms, its shank is by thin extremely thick, shank with first order fine needle head when then puncturing inserts blood vessel, need not transfer to, and the shank of again that the second level is thicker syringe needle slips into blood vessel along the shank of previous stage syringe needle, with identical method, continue the shank of back one-level syringe needle to be inserted blood vessel, puncture like this, accurate positioning, less to tissue injury, success rate is higher.

Now in conjunction with the accompanying drawings this utility model is described in further detail.

Fig. 1 is the structure chart of a kind of level Four angiographic neeclle of this utility model.

Fig. 2 is its first order needle head structure figure.

Fig. 3 is its second level needle head structure figure.

Fig. 4 is its third level needle head structure figure.

Fig. 5 is its fourth stage needle head structure figure.

Carry out the puncture of external jugular vein blood vessel, the central venous pressure catheter diameter of insertion is 1.5mm, then available level Four angiographic neeclle.With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, first order syringe needle is No. 6, and the shank diameter is 0.6mm, and shank length is 108mm, and second level syringe needle is No. 11, and shank is hollow, and the shank diameter is 1.1mm, and shank length is 82mm; Third level syringe needle is No. 17, and shank is hollow, and the shank diameter is 1.7mm, and shank length is 66mm; Fourth stage syringe needle is No. 22, and shank is hollow, and the shank diameter is 2.2mm, shank length 50mm.The shank of third level syringe needle is inserted in the shank of fourth stage syringe needle, and for being slidingly matched, the shank of third level syringe needle grows about 6mm than the shank of fourth stage syringe needle after inserting between the shank; Shank with second level syringe needle inserts in the shank of third level syringe needle again, and for being slidingly matched, the shank of second level syringe needle grows about 6mm than the shank of third level syringe needle after inserting between the shank; Continuation is inserted the shank of first order syringe needle in the shank of second level syringe needle, and for being slidingly matched, the shank of first order syringe needle grows about 20mm than the shank of second level syringe needle after inserting, and has formed the level Four angiographic neeclle like this between the shank.

Claims

1, the angiographic neeclle of using in a kind of clinical treatment, its syringe needle is made up of shank and needle stand, it is characterized in that this angiographic neeclle is to be formed from big being nested to little syringe needle one-level one-level by model specification.

2, angiographic neeclle according to claim 1 is characterized in that between the shank of every two-stage syringe needle of being nested for being slidingly matched.

3, angiographic neeclle according to claim 1 and 2 is characterized in that the model specification of syringe needle is more little, and the length of its shank is long more.