CN103372248A

CN103372248A - Pre-filling and sealing syringe

Info

Publication number: CN103372248A
Application number: CN 201210107452
Authority: CN
Inventors: 颜健民
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2013-10-30

Abstract

The invention discloses a pre-filling and sealing syringe which is an improvement on the basis of the structure of a conventional disposable syringe. A core tube is arranged to be hollow, and a water-blocking and ventilating diaphragm is connected at a hollow tube mouth at the tail end of the core tube in a melted manner. After a jacket portion is filled with liquid medicine, the core tube portion is mounted, air contained in the jacket can be naturally discharged through the water-blocking and ventilating diaphragm, and when the core tube is pushed, due to the water-blocking action of the water-blocking and ventilating diaphragm, the liquid medicine can be naturally pushed to be injected into a human body; due to the injection angle in the process of injection, air bubbles generated in the process of pouring or storing can be naturally discharged through the water-blocking and ventilating diaphragm.

Description

A kind of pre-encapsulated injector

Technical field:

The present invention relates to injector for medical purpose, particularly pre-encapsulated injector.

Background technology:

At present various types injector for medical purpose commonly used reaches the effect of suction medicinal liquid by push-and-pull, because may incomplete absorption or because the excessive therapeutic effect that affects of imbibition in the imbibition process; Excessively inhaled medicine and dumped and waste; Secondly owing to got rid of medicine amount liquid and air can pollute environment; Although pre-encapsulated injector has come out for many years at present, do not address this problem in the use, and manufacturing cost is relatively high at all.

Therefore, this patent proposes to keep in the liquid drug process quantitatively, does not need the pre-encapsulated injector product technology getting rid of medicine amount liquid, do not need deaeration, can be at the direct embedding medicine of medical manufacturer; Clinical direct use; The convenience, particularly favourable automated manufacturing made have been considered at design aspect.

Summary of the invention:

The objective of the invention is not change operating habit, after packing is sealed off, can use immediately.And it is rational in infrastructure, makes easily, and cost is also low.

The present technique solution is: the architecture basics at traditional disposable syringe improves, the core pipe is set to hollow form, in the place's welding of the terminal hollow mouth of pipe of core pipe one breathable film that blocks water is arranged, coat part is after perfusion solution, the mounting core tube portion, the air that its overcoat includes can be by the breathable film Natural excrement that blocks water, when promoting the core pipe, the resistance effect of breathable film owing to block water can naturally promote medicinal liquid and inject human body; Because owing to the angular relationship of injection, former because the bubble that perfusion or the process of depositing of standing for a long while produce also can be by the breathable film Natural excrement that blocks water in injection process.

This pre-encapsulated injector pattern is improved on the pattern of former syringe; This pre-encapsulated injector is comprised of overcoat, core pipe, piston, the breathable film that blocks water, needle stand, needle tubing and stick harness, and manufactured materials adopts the employed material of present syringe substantially, and the breathable film that blocks water adopts ventilative principle and the material of blocking water of infusing.

Description of drawings;

Concrete structure of the present invention is provided by following embodiment and structural representation.

Fig. 1 is the structural representation of pre-encapsulated injector.

Fig. 2 is the liquid drug sketch map of pre-encapsulated injector.

The liquid drug of Fig. 3 pre-encapsulated injector is loaded onto core tube portion structural representation.

Fig. 4 is that later structural representation is finished in the pre-encapsulated injector injection.

Fig. 5 is the pushing portion structural representation of automatic retraction syringe.

Fig. 6 is the liquid storing part separation structure sketch map of this automatic retraction syringe.

Fig. 7 is the core tubular construction sketch map of this automatic retraction syringe.

Fig. 8 is the jacket structure sketch map of this automatic retraction syringe.

Fig. 9, Fig. 9 the-the 1st, the breathable film structural representation that blocks water of this automatic retraction syringe.

Figure 10, Figure 10 the-the 1st, the piston ring structure sketch map of this automatic retraction syringe.

Figure 11 is the needle tubing structural representation of this automatic retraction syringe.

Figure 12 is the needle stand structure sketch map of this automatic retraction syringe.

Figure 13, Figure 13 the-the 1st, the stick harness structural representation of this automatic retraction syringe.

The specific embodiment:

With reference to Fig. 1, Fig. 5, Fig. 6, hollow core tubes (1) one end of pre-encapsulated injector is equipped with piston ring (3); The hollow part of piston ring is provided with the breathable film that blocks water (4), forms pushing portion; The conehead of the overcoat of pre-encapsulated injector (2) is provided with the needle stand (5) that needle tubing (6) are installed, and needle point forms the liquid storage part because thrusting stick harness (7); Piston ring (3) outer ring surface contacts with the overcoat inner chamber and inner ring surface contacts with the core pipe and reach sealing medicinal liquid purpose.

With reference to Fig. 2, because overcoat (1), needle stand (2), needle tubing (6) and stick harness (7) form the liquid storage part of an irregular test tube shape, but the quantitative filling medicinal liquid.

With reference to Fig. 2, Fig. 3, behind the liquid storage part quantitative filling medicinal liquid of test tube shape, insert pushing portion from its opening part, because the permeation functions that blocks water of the breathable film (4) that blocks water, salable liquid is arranged simultaneously and is rushed down gas, forms a state for the treatment of injecting liquid drug.

With reference to Fig. 4, when taking out stick harness (7), needn't aerofluxus, can inject.

With reference to Fig. 5, Fig. 7, Fig. 9, Fig. 9-1, Figure 10, the pushing portion of pre-encapsulated injector is installed in the piston ring (3) of core pipe (1) one end and is fused to the breathable film that blocks water (4) composition that core pipe (1) is managed recess (1-3) by core pipe (1).

With reference to Fig. 6, Fig. 8, Figure 10, Figure 10-1, Figure 12, Figure 13, Figure 13-1, pre-encapsulated injector liquid storage part is comprised of overcoat (2), needle stand (5), needle tubing (6) and stick harness (7); Needle point obtains sealing because thrusting stick harness (7), adopts welding or the bonding encapsulation process that reaches between the remaining part.

With reference to Fig. 7, pre-encapsulated injector core pipe (1) is an irregular hollow circular cylinder, be provided with the exhaust duct (1-1) of aerofluxus, solid plug ring (1-2) is provided with the scrobicular ring (1-3) that the breathable film that blocks water (4) can be set with ring installation (3), the mouth of pipe, adopts general-purpose plastics to make.

With reference to Fig. 8, pre-encapsulated injector overcoat (2) is an irregular funnel-form, the one end be provided with can internal or external needle stand conehead (2-1), can at the surface printing scale, adopt the universal transparent plastics to make as required.

With reference to Fig. 9, Fig. 9-1, the breathable film that blocks water (4) of pre-encapsulated injector is disc-shaped.Its edge can with the welding of core pipe scrobicular ring.

With reference to Figure 10, the piston ring of pre-encapsulated injector (3) is the hollow circular ring shape, adopts gum elastic to make.

With reference to Figure 11, the needle tubing of pre-encapsulated injector (6) adopts general injection needle.

With reference to Figure 12, the needle stand of pre-encapsulated injector (5) is irregular funnel-form, adopts general-purpose plastics to make.

With reference to Figure 13, the stick harness of pre-encapsulated injector (7) is cylinder, adopts gum elastic to make.

Comprehensive foregoing description, it is ventilative that the design has adopted the breathable film that blocks water that is located at the core pipe to reach to block water, and adopts needle tubing to thrust the pre-encapsulated injector that stick harness forms a sealing; Because simple in structure, very nearly the same with the common plastics syringe, its manufacture process is substantially identical, its production capacity and manufacturing management also change without basic.Cost and common plastics syringe are also very nearly the same.

Claims

1. pre-potting syringe, formed by the core pipe (1), the piston ring (3) that is installed in core pipe (1) one end, the breathable film that blocks water (4) that is installed in core pipe (1), the needle stand (5) that is installed in overcoat (2), the needle tubing (6) that is installed in needle stand (5) and the stick harness (7) that are installed in the overcoat (2), it is characterized in that core pipe (1) is provided with the breathable film that blocks water (4).

2. self-destroyed syringe according to claim 1 is characterized in that the exhaust duct (1-1) that core pipe (1) is provided with.

3. pre-potting syringe according to claim 1 is characterized in that stick harness (7).