CN2063020U

CN2063020U - Quick venipuncture apparatus without pain

Info

Publication number: CN2063020U
Application number: CN 90204554
Authority: CN
Inventors: 李平荣; 蒋婧
Original assignee: Individual
Current assignee: Guo Xuanxian; Jiang Jing
Priority date: 1990-04-13
Filing date: 1990-04-13
Publication date: 1990-10-03

Abstract

The utility model provides a medical syringe, particularly a quick venipuncture apparatus without pain, which is an instrument that uses intravenous injection and controls the entering depth through the pressure generated by a compressed spring memory. A vein needle head can be fast pierced in a vein blood vessel without pain; the holding part of a needle handle is fixedly installed at the left end of a core bar, and is split into a plurality of steps by a ring-shaped serrate clamping groove; a proper step can be selected according to the size of the needle head and the quality of the elasticity of the skin. A handle is pulled tightly; an upper bayonet is pushed backwards to the required clamping groove according to the force of the spring; the vein needle head can be fast pierced into the vein blood vessel without pain by pressing a spring. The utility model has the advantages of simple operation, light weight and portability.

Description

Quick venipuncture apparatus without pain

This utility model relates to a kind of injector for medical purpose, and it is a kind of with intravenous injection, and the pressure that produces with the elastic force memorizer that compresses is used for controlling the apparatus that enters the degree of depth, particularly a kind of quick painless venipuncture device.

Give venipuncture in the hospitalize at present is that armrest is held the operation of needle handle inserting needle always, and hand-held needle handle inserting needle speed is slow, because the skin peripheral nerve brings certain difficulty for patient and treatment to pain reaction is responsive.

The purpose of this utility model is a kind of quick painless venipuncture device that designs at above deficiency, it can make venous needle thrust in the vein blood vessel fast, make responsive skin peripheral nerve have little time to import pain into cerebral cortex and just finished venipuncture, for patient has removed the misery that acupuncture treatment is brought, the venipuncture technology is pushed away again go a step further.

This utility model is achieved in that this perforator comprises: upper latch notch 1, upper latch notch 12, bearing pin 2, spring 3, core bar 4, housing 5, draw-in groove 6, spring 8, bonnet 9, cushion pad 10, handle 11, bolt 13, nut 14 and screw 15.Fixedly mounting the retained part of needle handle at the left end of core bar 4, it can be that upper latch notch 1 and spring 3 are fixed on the core bar 4 by bearing pin 2, realization presses down upper latch notch 1 and leans on the strength of spring 3 that needle handle is entered in the retained part, unclamps upper latch notch 1 and leans on the strength of spring 3 that needle handle is clamped in the retained part.It can also be that upper latch notch 12 is fixed on the core bar 4 by screw 15, and bolt 13 and nut 14 metering needle spindle clamps are held the degree of tightness of part, realizes that loose nut 14 enters in the upper latch notch 12 needle handle, and fastening nut 14 is needle handle fixedly.In syringe needle thrust vein blood vessel, loose nut 14 made this utility model leave needle handle.

This utility model can be achieved in that ring-type zigzag draw-in groove 6 on core bar 4, it is divided into several shelves, can realize selecting suitable shelves according to the size and the skin elasticity quality of syringe needle.The right-hand member of draw-in groove 6 is equipped with spring 8, and bonnet 9 and housing 5 connect by spiral, and handle 11 and housing 5 are in order to change each parts of quick painless venipuncture device for spiral connects.One side of housing 5 is fixed with presses spring 7.Binding lever 11, is pushed and is pressed spring 7 to needed draw-in groove 6 by the strength of spring 8, or firmly with upper latch notch 1 to pusher, to needed draw-in groove 6, can realize venous needle painless thrusting in the vein blood vessel fast by the strength of spring 8.Bonnet 9 and housing 5 connect for spiral.

This utility model can also be achieved in that the material of this perforator can be metal such as rustless steel, also can be plastics.

Good effect of the present utility model is:

The puncture scope that may pollute the pin stalk when 1, having avoided hand-held needle handle and disinfect has guaranteed the tightness of aseptic operation.

2, can make venous needle painless thrusting in the vein blood vessel fast, solve the pain that slowly causes because of inserting needle speed.

3, cheap, light portable.

4, simple to operate, all have certain puncture technique person and all can use.

Below in conjunction with accompanying drawing this utility model being done one describes in detail.

Fig. 1 is an overall structure sketch map of the present utility model.

Fig. 2 is an another kind of overall structure sketch map of the present utility model.

Fig. 3 is a needle handle retained part enlarged drawing of the present utility model.

Fig. 4 is an another kind of needle handle retained part structure chart of the present utility model.

Accompanying drawing 1:1-upper latch notch, the 2-bearing pin, the 3-spring, the 4-core bar, the 5-housing, the 6-draw-in groove, 7 press spring, 8-spring, 9-bonnet, 10-cushion pad, 11-handle, 12-upper latch notch, 13-bolt, 14-nut, 15-screw.

As Fig. 1, Fig. 2, shown in Figure 3, when using this utility model, at first to choose blood vessel, tourniquet on the bundle disinfects skin.Press down upper latch notch 1 then, the needle handle of venipuncture syringe needle is put into upper latch notch 1, upper latch notch 1 closes.Binding lever 11 is to needed draw-in groove 6, or give a hard push backwards upper latch notch 1 to needed draw-in groove 6 (according to syringe needle size and skin elasticity quality, select suitable shelves), aim at blood vessel, grasp the angle of syringe needle and skin, push and press spring 7, can make painless the thrusting in the vein blood vessel fast of venipuncture needle head.10 cushioning effects of cushion pad.

When the venipuncture syringe needle thrusts in the vein blood vessel, press down upper latch notch 1, make quick painless venipuncture device break away from needle handle, end of operation.

As Fig. 1, Fig. 2, shown in Figure 4.When using this utility model, at first to choose blood vessel, tourniquet on the bundle disinfects skin.Loose nut 14 makes needle handle enter in the upper latch notch 12 fastening nut 14, fixedly needle handle then.Binding lever 11 is to needed draw-in groove 6, or the upper latch notch 1 that gives a hard push backwards (is selected suitable shelves according to syringe needle size and skin elasticity quality) to needed draw-in groove 6, aim at blood vessel, grasp the angle of syringe needle and skin, push and press spring 7, can make painless the thrusting in the vein blood vessel fast of venipuncture needle head.When the venipuncture head thrust in the vein blood vessel, loose nut 14 made quick painless venipuncture device break away from needle handle, end of operation.

Claims

1, a kind of quick painless venipuncture device mainly comprises: core bar, housing, spring, bonnet, cushion pad, handle, it is characterized in that: draw-in groove (6) is arranged on the core bar (4), fixedly mounting the retained part of needle handle at the left end of core bar (4), the right-hand member of draw-in groove (6) is equipped with spring (8), bonnet (9) and housing (5) connect by spiral, handle (11) and core bar (4) connect for spiral, and a side of housing (5) is fixed with presses spring (7).

2, quick painless venipuncture device according to claim 1 is characterized in that: the retained part of needle handle is to constitute with upper latch notch (1) and spring (3) that bearing pin (2) is fixed on the core bar (4).

3, quick painless venipuncture device according to claim 1 is characterized in that: the needle handle retained part is a bolt (13) of regulating the clamping degree of tightness, nut (14) and be fastened on by screw (15) that upper latch notch (12) on the core bar (4) constitutes.

4, quick painless venipuncture device according to claim 1, it is characterized in that: the draw-in groove (6) on the core bar (4) is a ring-type zigzag draw-in groove.

5, according to claim 1 or 2 or 3 or 4 described quick painless venipuncture devices, it is characterized in that: the material of this perforator can be a metal, as rustless steel.

6, according to claim 1 or 2 or 3 or 4 described quick painless venipuncture devices, it is characterized in that: the material of this perforator can be plastics.