CN2815392Y

CN2815392Y - Self-ruined leakage-free disposable syringe

Info

Publication number: CN2815392Y
Application number: CN 200520092200
Authority: CN
Inventors: 张利国
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-19
Filing date: 2005-08-19
Publication date: 2006-09-13
Anticipated expiration: 2015-08-19

Abstract

The utility model discloses a self-destruction leakage-free disposable syringe which belongs to the field of medical appliances. The utility model comprises a needle pin (1) and a needle cylinder (2), wherein one end of the needle cylinder (2) is provided with a nipple (7) communicated with the needle cylinder (2), one end of a cylindrical body of the needle pin which is adjacent to the nipple (7) is provided with a sealing ring (4), the end surface of the needle pin which is adjacent to one side of the nipple (7) is particularly provided with a sheet (5), one end at the inner part of the needle cylinder (2) which is adjacent to the nipple (7) is correspondingly provided with a tip-shaped bulge (6), and an inner cavity of the needle pin is provided with a spongy body (3). When in use, the sealing ring (4) has a sealing function, when injection is nearly completed, the tip-shaped bulge punctures the sheet (5) to perform self destruction, the residual physic liquor is absorbed by the spongy body (3) to realize no leakage of the physic liquor. The utility model has the characteristic of simple and scientific structure, stops repeated use and avoids the cross infection of diseases.

Description

Type self-destroyed nothing is leaked disposable syringe

Technical field:

This utility model relates to a kind of injector for medical purpose, belongs to medical instruments field, is a kind of can the destruction voluntarily after injection, and does not have the disposable syringe of remaining liquid leakage.

Background technology:

Disposable syringe has all obtained the excellent popularization use in countries in the world and area now, has avoided a lot of cross infection of disease effectively, and important function has been played in the control of a lot of infectious disease.But traditional disposable syringe is happened occasionally by the situation that artificial secondary uses, and the personal safety of user has been arrived in serious threat, even has the danger of life-threatening diseases such as aids infection; And more existing novel self-destruction syringes exist liquid leakage again in self-destruction, have produced unnecessary environmental pollution.

Summary of the invention:

Used the problem that exists liquid leakage with some novel self-destruction syringes in self-destruction again in order to solve traditional disposable syringe by artificial secondary, this utility model has designed a kind of not re-usable type self-destroyed nothing and has leaked disposable syringe.

The technical scheme that its technical problem that solves this utility model adopts is as follows: type self-destroyed nothing is leaked disposable syringe and is comprised pintle (1), syringe (2), one end of syringe (2) is provided with the nipple (7) that communicates with it, be provided with sealing ring (4) near nipple (7) one ends on the cylinder of pintle (1), especially be provided with thin slice (5) at pintle (1) near on the end face of nipple (7) one sides, corresponding therewith syringe (2) is inner to be provided with pointed projection (6) near nipple (7) one ends, also is provided with the spongy body (3) of absorption residual liquor at the inner chamber of pintle (1).Syringe construction shown in Figure 1, thin slice (5) is an annular, this structure is applicable to that capacity is not more than the type self-destroyed nothing leakage disposable syringe of 5ml, and corresponding with annular flake (5), 2～8 pointed projectioies (6) uniform on circumference are distributing in the relevant position on the syringe; Syringe construction thin slice shown in Figure 2 (5) is circular, this structure is applicable to that capacity leaks disposable syringe greater than the type self-destroyed nothing of 5ml, on syringe, be 1, be positioned at the axis of symmetry position of the inner end face near nipple (7) of syringe with the corresponding pointed projection of thin rounded flakes (5) (6).In clinical use, when closing on when having injected medicinal liquid, pointed projection (6) can pierce through thin slice (5), this syringe can't be used by secondary, realize self-destruction, meanwhile the remaining medicinal liquid in syringe can be absorbed by spongy body (3), can not leak and produce unnecessary pollution.

The beneficial effects of the utility model are to stop repeated use, thereby avoided the cross infection of disease; Except can after injection, absorbing remaining medicinal liquid the self-destruction, can not produce liquid leakage and pollute; This structure has kept traditional syringe construction form as far as possible, and simple in structure, science, cost are low, have excellent popularization to be worth and market prospect.

Description of drawings:

Fig. 1, Fig. 2 are overall structure sketch maps of the present utility model, and structure shown in Figure 1 is applicable to that capacity is not more than the type self-destroyed nothing leakage disposable syringe of 5ml, and structure shown in Figure 2 is applicable to that capacity leaks disposable syringe greater than the type self-destroyed nothing of 5ml.

Fig. 3 is the structural representation of pintle among Fig. 1 (1).

Fig. 4 is the left view of Fig. 3.

Fig. 5 is the B-B cutaway view of Fig. 3.

Fig. 6 is the A-A cutaway view of Fig. 3.

Fig. 7 is pintle (1) structural representation among Fig. 2.

Fig. 8 is the C-C cutaway view of Fig. 7.

1. pintles among Fig. 1, Fig. 2,2. syringe, 3. spongy body, 4. sealing ring, 5. thin slice, 6. pointed projection, 7. nipple.

The specific embodiment:

Type self-destroyed nothing is leaked disposable syringe and is comprised pintle (1), syringe (2), one end of syringe (2) is provided with the nipple (7) that communicates with it, be provided with sealing ring (4) near nipple (7) one ends on the cylinder of pintle (1), especially be provided with thin slice (5) at pintle (1) near on the end face of nipple (7) one sides, corresponding therewith syringe (2) is inner to be provided with pointed projection (6) near nipple (7) one ends, also is provided with the spongy body (3) of absorption residual liquor at the inner chamber of pintle (1).In use, when closing on when having injected medicinal liquid, pointed projection (6) can pierce through thin slice (5), this syringe can't be used by secondary, realize self-destruction truly, meanwhile the remaining medicinal liquid in syringe can be absorbed by spongy body (3), can not leak and produce unnecessary pollution.

Syringe construction embodiment illustrated in fig. 1, thin slice (5) is an annular, its center of circle is on the axis of symmetry of pintle (1), this structure is applicable to that capacity is not more than the type self-destroyed nothing leakage disposable syringe of 5ml, with the corresponding relevant position of annular flake (5) 2～8 the pointed projectioies (6) uniform on same circle that distributing in syringe inside, uniform distribution is in order to make pintle (1) stressed even when thin slice is pierced thereon, unlikely inclination, but pointed protruding quantity is few more good more, quantity can reduce to close on the strength that thin slice is at the end pierced through in injection less, and this kind structure does not need the location, pintle (1) can arbitrarily rotate in syringe (2), and the pintle structure of this structure such as Fig. 3 are to shown in Figure 6.

Syringe construction embodiment illustrated in fig. 2, thin slice (5) is circular, its center of circle is on the axis of symmetry of pintle (1), this structure is applicable to that capacity leaks disposable syringe greater than the type self-destroyed nothing of 5ml, with the corresponding pointed projection (6) of thin rounded flakes (5) in syringe inside be 1, be positioned on the axis of symmetry of syringe (2) near the internal end surface of nipple (7) and syringe (2), this kind structure has only 1 pointed projection, simple in structure, pintle need not special location in syringe, closing on injection at the end, pointed projection can pierce through thin rounded flakes, carry out self-destruction, and medicinal liquid is absorbed by spongy body (3), the pintle of this structure and shown in Figure 2 in the pintle structure only on the lamella shape of termination to some extent the difference, concrete structure such as Fig. 7, shown in Figure 8.

The material of spongy body (3) can be the medical material of any suction, and shape can be sealed the pintle inner chamber, and can absorb the remaining medicinal liquid that drains in the pintle inner chamber for cylinder, spheroid etc.

The main effect of sealing ring (4) is sealing, prevents that medicinal liquid from leaking outside when injection, and its quantity is 1～4, and cross sectional shape can be for circular or oval.

Claims

1. type self-destroyed nothing is leaked disposable syringe and is comprised pintle (1), syringe (2), one end of syringe (2) is provided with the nipple (7) that communicates with it, be provided with sealing ring (4) near nipple (7) one ends on the cylinder of pintle (1), especially be provided with thin slice (5) at pintle (1) near on the end face of nipple (7) one sides, corresponding therewith syringe (2) is inner to be provided with pointed projection (6) near nipple (7) one ends, also is provided with spongy body (3) at the inner chamber of pintle (1).

2. leak disposable syringe according to claims 1 described type self-destroyed nothing, it is characterized in that: going up near nipple (7) at syringe (2) has pointed projection, relevant position on pintle (1) termination is provided with thin slice (5), and pointed projection is band obelisk body or pointed polyhedron.

3. leak disposable syringe according to claims 1 described type self-destroyed nothing, it is characterized in that: leak disposable syringe greater than the type self-destroyed nothing of 5ml for capacity, there is being 1 pointed projection syringe inside near nipple one end, be positioned on the axis of symmetry of syringe, corresponding end face center in the close pointed protruding side of pintle is provided with thin rounded flakes.

4. leak disposable syringe according to claims 1 described type self-destroyed nothing, it is characterized in that: the type self-destroyed nothing that is not more than 5ml for capacity is leaked disposable syringe, pintle is being near being provided with annular flake on the end face of nipple one end, in 2～8 the pointed projectioies uniform on circumference that distributing of the opposite position on the syringe.

5. leak disposable syringe according to claims 1 described type self-destroyed nothing, it is characterized in that: 1 spongy body that can absorb remaining medicinal liquid is arranged in the inner chamber of pintle, this cavernosa material can be the medical material of any suction, and shape can be cylinder or spheroid.

6. leak disposable syringe according to claims 1 described type self-destroyed nothing, it is characterized in that: be provided with sealing ring near nipple one end on pintle, the quantity of sealing ring is 1～4, and intercept face shape can be for circular or oval.