CN2540978Y

CN2540978Y - Novel medicine dessolving syringe needle

Info

Publication number: CN2540978Y
Application number: CN 02211027
Authority: CN
Inventors: 张仲元
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-04
Filing date: 2002-04-04
Publication date: 2003-03-26
Anticipated expiration: 2012-04-04

Abstract

A medical novel injection medicine-dissolving needle comprises a needle point, a needle tube and a needle base, wherein the needle point is in an inclination shape, the needle point is characterized in that the inner cutting edge of the needle point is in a smooth circular shape or a similar circular shape, the connecting portion between the inner cutting edge of the needle point and the end of the needle point inclination flat surface is also in a smooth circular shape or a similar circular shape. The other portions except the needle point of the utility model all employ a non-keenness smooth circular shape or a similar circular shape structure, thereby avoiding piercing down shredded rubber crumbs. Compared with a conventional one-time injection needle and an one-time side outlet medicine-dissolving piercing bottle needle, the structure has the advantages of the multipurpose of one needle, low production costs and selling prices, strong practicability, and simple manufacturing craft and equipment, which is not only capable of being utilized to pump liquid when solid medicines are dissolved, but also to inject liquid medicines.

Description

The molten medicine syringe needle of novel injection

Technical field

This utility model belongs to technical field of medical instruments, the molten medicine syringe needle of two kinds of functions of suction novel injection of liquid when liquid medicine and dissolved solid medicine penetrated in specifically a kind of variorum.It also is improvement to the disposable needle head.

Background technology

Disposable needle in the market and disposable syringe overcoat, the supporting use of core bar piston, biological fluid such as the suction of liquid and collection blood when being used for injecting fluid medicine, dissolved solid medicine.Because being used for the solvent, solid drugs of splendid attire dissolved solid medicine and the container of the medication infusion three after the dissolving is to seal with rubber stopper basically, so be used for injecting or must passing sealing rubber plug from syringe needle of its taking-up liquid to above-mentioned three.And the needle point of present disposable needle is a ramped shaped, seals often regular meeting's thorn small scrap gum down when it passes rubber stopper, and these scrap gums or enter in the medicinal liquid mix with the solid foreign materials that may exist and influence the clarity of medicinal liquid; Or retain in the needle tubing and result in blockage.For addressing this problem, there is Crinis Carbonisatus to understand " disposable use side opening soluble medicine insertion bottle needle " and " disposable use side opening medicine dissolving device " two kinds of utility models (patent No. is respectively ZL 98 2 49136.0 and ZL 99 2 07810.5), though passing rubber stopper, its needle point can not stay scrap gum, but compare its complex manufacturing, cost and price height with common slope point entry needle, and the suction of liquid can not be used for the injection of liquid medicine etc. in the time of can only being used for the dissolving etc. of solid drugs.

Summary of the invention

The inner cutter hole that the purpose of this utility model provides a kind of needle point is the level and smooth circular-arc molten medicine syringe needle of injection.This syringe needle can not sting down scrap gum and cause poor medicinal liquid clarity or needle tubing to stop up.

The purpose of this utility model realizes in the following manner: it comprises needle point, needle tubing and needle stand, and needle point is a ramp type, and the inner cutter hole that it is characterized in that needle point is that level and smooth circular-arc or class is circular-arc.At the inner cutter hole of needle point and plane, needle point slope afterbody joining part also is that level and smooth circular-arc or class is circular-arc.The injection needle of this structure when lunging rubber stopper etc. except that needle point other parts be non-sharp-pointed level and smooth circular-arc or class is circular-arc, can not sting down scrap gum, the suction of liquid when both can be used for dissolved solid medicine etc. also can be used for the injection of liquid medicine etc.

This utility model is owing to adopt when making entry needle lunge rubber stopper that other parts are non-level and smooth circular-arc or class convex structure sharply except that needle point, thereby can not sting down scrap gum.Because the external form of this utility model and present common disposable needle is basic identical, does not influence normal injection, thereby can use as entry needle simultaneously; And its be after being processed into common disposable needle again through further be processed into circular-arc or class circular-arc, manufacturing process is uncomplicated.This structure is compared with disposable use side opening soluble medicine insertion bottle needle with present common disposable needle, have that a pin is used more, production cost and price be low, practical, manufacturing process and equipment are simple, cost and price is low, the suction of liquid when both can be used for the dissolved solid medicine, also can be used for injecting fluid medicine etc.

Description of drawings

Below in conjunction with accompanying drawing this utility model is described in further detail.

Fig. 1 is a side-looking structural representation sketch of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to profile

Fig. 3 is that the B of Fig. 2 is to enlarged diagram

To be described in further detail this utility model by example below, but following example only is an example of the present utility model, does not represent this utility model institute restricted portion.

The specific embodiment

Shown in Fig. 1-3, among the figure 1 is plastics system needle stand for stainless steel needle point, 2 rustless steels of ramp type are made as needle tubing, 3, at the inner cutter hole 4 of needle point is that level and smooth circular-arc or class is circular-arc, and inner cutter hole and plane, needle point slope afterbody 5 joining parts also are that level and smooth circular-arc or class is circular-arc.When the injection needle of this structure (the needle tubing overall diameter is at the 0.2-4.0 millimeter) is lunging rubber stopper etc. except that needle point other parts be non-sharp-pointed level and smooth circular-arc or class is circular-arc, can not sting down scrap gum, the suction of liquid when both can be used for dissolved solid medicine etc. also can be used for the injection of liquid medicine etc.Entry needle of the present utility model can combine with traditional syringe cylinder, uses as general syringe.Since basic identical with the external form of ordinary syringe, do not influence normal injection, thereby can use as entry needle simultaneously; The manufacturing of this structure entry needle is further to process on the basis of common injection needles again, and manufacturing process is also simple relatively.

Claims

1, the molten medicine syringe needle of a kind of medical novel injection, it comprises needle point, needle tubing and needle stand, and needle point is a ramp type, and the inner cutter hole that it is characterized in that needle point is that level and smooth circular-arc or class is circular-arc.

2, the molten medicine syringe needle of injection according to claim 1 is characterized in that the inner cutter hole of needle point and plane, needle point slope afterbody joining part are also circular-arc for level and smooth circular-arc or class.