CN2654145Y

CN2654145Y - Safety device of injection needle

Info

Publication number: CN2654145Y
Application number: CN 03207043
Authority: CN
Inventors: 王东华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-01
Filing date: 2003-08-01
Publication date: 2004-11-10
Anticipated expiration: 2013-08-01

Abstract

The utility model relates to a safety device of an injecting pinhead and comprises a plurality of sleeved pipes; a protecting cover is formed by the mutual sleeved connections of the sleeved pipes and fixedly connected with the pinhe undertake telescopic motions on the outer circumference of the pin body of the injecting pinhead. By the positioning structure between the sleeved pipes which are mutually connected in a muff coupling way by the protecting cover, the positioning setting of the protecting cover being stretched is able to make the protecting cover positioned on the outer circumference of the pin body of the injecting pinhead and further form a safety device which maintains the pin body, thereby preventing the hurts or infections as results of pin inserting from occurring. By pressing, the protecting cover can be deviated from the positioning structure so as to make the injecting pin body extend out for injection use. The utility model has the advantages of convenient and safe use and good practicability.

Description

The safety device of injection needle

Technical field

This utility model relates to a kind of safety device of injection needle, refer in particular on the needle stand of injection needle, a sheath with stretching motion is set, after sheath stretches, by its locating structure that has, make its needle body periphery that can be set in injection needle, form the preventer of a safety, again can be after breaking away from locating structure, the needle body of injection needle is stretched out outside the sheath, the use of medication injections is provided, have easy to use, An Quan good efficacy again.

Background technology

As everyone knows, the syringe needle that medication injections is used, owing to have elongated needle body, in the process of using, it is the easiest accident that meets accident and stab, therefore the measure of some protection must be arranged, could safeguard the safety on using, and typically use a kind of high-safety protecting cover at present, be nested with behind the needle body forward direction by injection needle, again with the needle stand fit snapping of injection needle, to safeguard the safety of user, so injection needle is equipped with long high-safety protecting cover outward at present.When using, user tear initiation packing, after inserting the needle stand of injection needle with injection tube again, outwards extract, the needle body of injection needle can be used as injection to hold high-safety protecting cover, but still wanting earlier the high-safety protecting cover that pulls up to be placed on a side this moment can not lose, because of after injection finishes, also high-safety protecting cover to be recovered on the syringe needle, used syringe needle could be abandoned, otherwise the syringe needle that does not have high-safety protecting cover is exactly the dangerous goods that the people is stabbed.

Therefore be still in the use at present must extreme care for high-safety protecting cover, especially in the action of extracting and recover high-safety protecting cover, and the easiest injury that meets accident, so in the use of injection needle, have in fact and studies improved needs in detail,, have the practical effect of safety again can reach convenient use.

Summary of the invention

Main purpose of the present utility model provides a kind of safety device of injection needle, be arranged at the needle stand place of injection needle by sheath with retractility, when making its elongation, can go along with sb. to guard him the needle body that is positioned at the needle stand front end, and the locating structure by sheath, in firm its tensile position, sheath elongation back, effectively safeguard the safety of needle body, only need exert pressure a little simultaneously, just can make its locating structure of sheath exit, allow sheath shorten the needle stand place that is positioned at syringe needle, needle body is protruded for the medication injections use, not only convenient rapid in operation, do not go up safely fully simultaneously or any puzzlement that places, overcome the defective of the protecting cover safe in utilization of traditional syringe needle, reach the usefulness of maintenance safe and the purpose that user can be felt at ease to use easily.

A purpose more of the present utility model provides a kind of safety device of injection needle, have most sleeve pipes by retractable guard, it has the corresponding body that varies in size respectively, constitute in mutual socket mode each other, make its not only flexible operation freely, also can cooperate the length of injection needle to do suitable collocation simultaneously, make things convenient for practical purpose on reaching the suitable sheath of assembling formation easily and using.

The purpose of this utility model is achieved in that a kind of safety device of injection needle, it is characterized in that: it includes most sleeve pipes, this sleeve pipe is to have the caliber socket each other that varies in size, constitute a retractable sheath, be provided with locating structure between the sleeve pipe of this retractable guard, the needle stand fit of this sheath and injection needle is fixed, makes sheath do flexible motion in the needle body periphery of injection needle, forms the safety device that needle body is safeguarded.

This locating structure is by each other between belled sleeve pipe, inboard wall of tube body with a telescopic front end appropriate position is provided with scarfing slot, the isogonism position of the groove trailing edge of this scarfing slot is provided with most positioning convex points, the locating ring that is provided with the outer rim of the telescopic rear end body of another cooperation of arranging in pairs or groups, this locating ring is embedded in this scarfing slot, is maintained its firm elongation state after sheath is stretched.Most positioning convex points of this retractable guard locating structure are the isogonism positions that is arranged at the groove trailing edge of this scarfing slot.

Describe in detail below in conjunction with the preferred embodiment conjunction with figs..

Description of drawings

Fig. 1 is a perspective exploded view of the present utility model.

Fig. 2 is that cross-sectional schematic is used in sheath stretching of the present utility model.

Fig. 3 is that injection needle of the present utility model uses cross-sectional schematic.

The specific embodiment

Consult Fig. 1-shown in Figure 3, the safety device of injection needle of the present utility model, include

most sleeve pipes

1,2,3, these sleeve pipes the 1,2, the 3rd have the caliber of varying in size, socket that can be each other, to constitute a telescopic sheath A, wherein, the internal diameter of the sleeve pipe 1 of caliber maximum is to cooperate with needle stand 41 external diameters of this injection needle 4, sleeve pipe 1 is able on the needle stand 41 that fit is consolidated in injection needle 4, and the sheath A that its socket is formed can do flexible security maintenance motion, as shown in Figure 2 in needle body 42 peripheries of injection needle 4.

Sleeve pipe 1 at its retractable guard A, 2,3, other has the setting of locating structure, this locating structure is by belled

sleeve pipe

1 and 2 each other, 2 and 3, with a

sleeve pipe

1,2 front end appropriate position, on its inboard wall of tube body, has

scarfing slot

11,21 setting, and at

scarfing slot

11,21 groove trailing edge, the isogonism position has most positioning

convex points

12,22 set, sleeve pipe 2 with its another cooperation of arranging in pairs or groups, 3, the locating ring 23 that has on the outer rim of body in its back-end, 31 are provided with, allow this sleeve pipe 2, during 3 stretchings, can make its locating

ring

23,31 pass through belled sleeve pipe 1 with it, 2

positioning convex point

12,22 and be embedded at scarfing slot 11, in 21, after sheath A is stretched, be maintained its firm elongation state, reach and safeguard the safe in utilization of the interior injection needle 4 of this sheath A, avoid the needle body 42 of injection needle 4 to stab human body, and in the time will using this injection needle 4 to be engaged in medication injections, only need apply retraction pressure a little in retractable guard A, allow this sleeve pipe 2, the locating ring 23 of 3 rear ends, 31 positioning convex points 12 by its rear end, 22, just can make locating

ring

23,31 break away from the scarfing slot 11 of setting, 21 and backward the retraction, and the sleeve pipe 1 that contracts in regular turn and place the caliber maximum, as shown in Figure 3.

Also be positioned on the needle stand 41 of its fixed injection needle 4 simultaneously, the needle body 42 of injection needle 4 is protruded out outside this sheath A, can use easily for user, the inconvenience and the disappearance that do not have traditional injection needle 4 protecting covers safe in utilization fully, allow user only need in the stretching motion of operation sheath A, just can have safety and convenience, moreover the sleeve pipe 1 of these sheaths A, 2,3 can have suitable length and quantity, the stretching structure that constitutes is can adapt to not injection needle 4 assemblings of isomorphism type to use, it really can effectively solve present injection needle 4 and use the problem that goes up existence, has the effect of promoting practical value.

In sum, the structure of " safety device of injection needle " of the present utility model, it really is a novel structure of at first creating, be not seen in before the application in any publication or public use, and really can solve the problem that these traditional injection needles produce in the use on using, have novelty, creativeness and practicality.

The above only is preferred embodiment of the present utility model, all personages who has the knack of this skill, and the various variations that utilize technological thought of the present utility model to make must be contained within the protection domain of the present utility model.

Claims

1, a kind of safety device of injection needle, it is characterized in that: it includes most sleeve pipes, and this sleeve pipe is to have the caliber socket each other that varies in size, and constitutes a retractable sheath, be provided with locating structure between the sleeve pipe of this retractable guard, the needle stand fit of this sheath and injection needle is fixed.

2, the safety device of injection needle according to claim 1, it is characterized in that: this locating structure is by each other between belled sleeve pipe, inboard wall of tube body with a telescopic front end appropriate position is provided with scarfing slot, the isogonism position of the groove trailing edge of this scarfing slot has most positioning convex points, with the locating ring that the outer rim of the telescopic rear end body of another cooperation of arranging in pairs or groups is provided with, this locating ring is embedded in this scarfing slot.

3, the safety device of injection needle according to claim 2 is characterized in that: most positioning convex points of this retractable guard locating structure are the isogonism positions that is arranged at the groove trailing edge of this scarfing slot.