CN213131318U

CN213131318U - Self-destruction type infection-preventing syringe

Info

Publication number: CN213131318U
Application number: CN202020615044.6U
Authority: CN
Inventors: 刘辉
Original assignee: JIANGSU KANGBAO MEDICAL EQUIPMENT CO Ltd
Current assignee: JIANGSU KANGBAO MEDICAL EQUIPMENT CO Ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-05-07
Anticipated expiration: 2030-04-22

Abstract

The utility model belongs to the technical field of medical instrument, especially, be an infection syringe is prevented to self-destruction formula, have the open-ended barrel including one end, the open-ended one end is kept away from to the barrel is equipped with the needle file, be equipped with the main push rod in the barrel, the one end that the main push rod is located the barrel is connected with main plug through the connecting seat, the one end that the connecting seat was kept away from to the main push rod is equipped with prevents infecting the helmet, prevent infecting the helmet and constitute by connecting the end and extending the cover end, extend the cover end and set up in the periphery of main push rod, and extend the outer fringe of cover end one end and connection end and be connected, the inside of main push rod radially is. The utility model discloses a setting of preventing infecting the helmet, finger and push rod contact when can avoiding medical personnel to operate the syringe effectively prevent to cause cross infection to the liquid medicine, adopt the jam mode to realize syringe safety self-destruction, effectively avoid the secondary of syringe to use, and simple structure, production low in manufacturing cost satisfies industrialization batch production demand.

Description

Self-destruction type infection-preventing syringe

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a self-destruction type infection-preventing injector.

Background

With the rapid development of modern medical health care, the traditional syringes for drug injection are developed from glass syringes to the now diversified disposable plastic syringes, among which there are three-piece syringes composed of a push rod, a barrel and a rubber plug, and two-piece syringes composed of a push rod and a barrel.

In recent years, various self-destruction types are developed in order to prevent the secondary use of the syringe, but the design structure is complex, the product pollution probability is increased, the quality stability performance is poor, the manufacturing cost is high, and patients cannot bear the self-destruction type syringe.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a self-destruction formula prevents infecting syringe has solved current self-destruction formula syringe structure complicacy, and the product pollution probability is big, and the stable quality performance is relatively poor, can't enlarge the use, and manufacturing cost is higher, and the patient is difficult to bear, can't realize industrialization batch production's problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a self-destruction infection-preventing syringe comprises a barrel body, wherein one end of the barrel body is provided with an opening, a needle seat is arranged at one end of the barrel body, which is far away from the opening, a main push rod is arranged in the barrel body, one end of the main push rod, which is positioned in the barrel body, is connected with a main rubber plug through a connecting seat, one end of the main push rod, which is far away from the connecting seat, is provided with an infection-preventing protective cap, the infection-preventing protective cap consists of a connecting end head and an extending sleeve end, the extending sleeve end is arranged at the periphery of the main push rod, one end of the extending sleeve end is connected with the outer edge of the connecting end head, a through hole is radially arranged in the main push rod, the through hole is in sliding fit with an inner push rod, a front sliding cavity communicated with the through hole is arranged in the connecting seat, a first clamping groove is arranged on the hole wall of one end of, the one end of interior push rod extends to preceding sliding chamber and is connected with interior plug, the main push rod is kept away from the inside back sliding chamber that sets up with the through-hole intercommunication that is equipped with of one end of connecting seat, be equipped with the operation mouth that corresponds with the back sliding chamber front and back on the connection end, the inside sliding fit of back sliding chamber has the pressure cap, the one end of interior push rod extends to the back sliding chamber in and is connected with the pressure cap, the inside of needle file is equipped with the liquid passageway, cross the liquid passageway be close to one of main plug on the inner wall be equipped with fixture block joint complex second draw-in groove, first draw-in groove corresponds around and the second draw-in groove.

As an optimized technical scheme of the utility model, the operation mouth internal seal of connecting the end is equipped with the protecting film, the protecting film is the aluminium foil membrane.

As the utility model discloses a preferred technical scheme, the surface that extends the cover end is equipped with the indent and indicates the groove, and the surface that the indent indicates the groove is equipped with anti-skidding dimpled grain.

As a preferred technical scheme of the utility model, the fixture block comprises base member and outer connecting portion, and the base member is the cylinder type structure, the radial equipartition of outer connecting portion in the surface of base member, base member and outer connecting portion surface are equipped with the protruding granule that is used for increasing frictional force between with first draw-in groove and the second draw-in groove.

As an optimized technical proposal of the utility model, the distance length between the pressure cap and the bottom of the rear sliding cavity is greater than the distance length between the inner rubber plug and the front end opening of the front sliding cavity.

(III) advantageous effects

Compared with the prior art, the utility model provides a self-destruction type infection-preventing injector, possesses following beneficial effect:

this infection syringe is prevented to self-destruction formula through preventing the setting of infecting the helmet, and finger and push rod contact when can avoiding medical personnel to operate the syringe effectively prevent to cause cross infection to the liquid medicine, adopts the mode of blockking up to realize the safe self-destruction of syringe, effectively avoids the secondary use of syringe, and simple structure, and production low in manufacturing cost satisfies industrialization batch production demand.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the connection structure of the main push rod, the connecting seat and the main rubber plug;

fig. 3 is a sectional view of the needle holder of the present invention;

fig. 4 is a schematic structural view of the middle clamping block of the present invention.

In the figure: 1. a barrel; 2. a needle seat; 3. a main push rod; 4. a connecting seat; 5. a main rubber plug; 6. an infection-preventing protective cap; 601. connecting the end heads; 602. an extension sleeve end; 7. a through hole; 8. an inner push rod; 9. a front slide cavity; 10. a first card slot; 11. a clamping block; 12. an inner rubber plug; 13. a rear slide chamber; 14. pressing the cap; 15. a liquid passing channel; 16. a second card slot; 17. and (4) a protective film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a self-destruction infection-preventing injector comprises a barrel body 1 with an opening at one end, a needle base 2 is arranged at one end of the barrel body 1 far away from the opening, a main push rod 3 is arranged in the barrel body 1, one end of the main push rod 3 in the barrel body 1 is connected with a main rubber plug 5 through a connecting seat 4, one end of the main push rod 3 far away from the connecting seat 4 is provided with an infection-preventing protective cap 6, the infection-preventing protective cap 6 consists of a connecting end 601 and an extending sleeve end 602, the extending sleeve end 602 is arranged at the periphery of the main push rod 3, one end of the extending sleeve end 602 is connected with the outer edge of the connecting end 601, a through hole 7 is radially arranged in the main push rod 3, the through hole 7 is in sliding fit with an inner push rod 8, a front sliding cavity 9 communicated with the through hole 7 is arranged in the connecting seat 4, a first clamping groove 10 is arranged on the wall of one end of the front sliding cavity 9 far away from the through hole 7, a clamping block 11 in, one end of the inner push rod 8 extends to the front sliding cavity 9 and is connected with the inner rubber plug 12, the main push rod 3 is far away from the rear sliding cavity 13 which is arranged by being communicated with the through hole 7 inside one end of the connecting seat 4, the connecting end 601 is provided with an operation port which corresponds to the rear sliding cavity 13 in front and rear, the pressing cap 14 is arranged in the rear sliding cavity 13 in a sliding fit manner, one end of the inner push rod 8 extends to the rear sliding cavity 13 and is connected with the pressing cap 14, the liquid passage 15 is arranged inside the needle seat 2, the liquid passage 15 is close to one end inner wall of the main rubber plug 5 and is provided with a second clamping groove 16 which is matched with the clamping block 11 in a clamping manner, and the first clamping groove 10 corresponds to the second clamping.

Specifically, a protective film 17 is hermetically arranged in the operation port of the connection end 601, and the protective film 17 is an aluminum foil film.

In this embodiment, the setting that adopts the aluminium foil membrane as protective film 17 can expose in the external environment at the syringe to and when medical personnel absorb the liquid medicine, effectively prevent medical personnel when carrying out the syringe operation, finger and prevent infecting helmet 6 contact, through the cross infection of back sliding chamber 13, through-hole 7 and preceding sliding chamber 9 to the liquid medicine.

Specifically, the outer surface of the extension sleeve end 602 is provided with an inner concave finger groove, and the surface of the inner concave finger groove is provided with anti-skid concave grains.

In this embodiment, the setting of indent finger groove does benefit to medical personnel and operates the syringe, can improve the anti-skidding performance of infection-preventing helmet 6 through the setting of anti-skidding intaglio.

Specifically, the fixture block 11 is composed of a base body and an outer connecting part, the base body is of a cylindrical structure, the outer connecting part is uniformly distributed on the outer surface of the base body in the radial direction, and protruding particles used for increasing friction force between the base body and the first clamping groove 10 and between the base body and the second clamping groove 16 are arranged on the surfaces of the base body and the outer connecting part.

In this embodiment, the arrangement of the protruding particles can increase the friction force between the fixture block 11 and the first and

second clamping grooves

10 and 16, and the fixture block 11 and the second clamping groove 16 are tightly combined after the fixture block 11 is clamped with the second clamping groove 16, so that the safety self-destruction after the use is realized.

Specifically, the distance length between the pressing cap 14 and the cavity bottom of the rear sliding cavity 13 is greater than the distance length between the inner rubber plug 12 and the front end opening of the front sliding cavity 9.

In this embodiment, the above arrangement can ensure that the fixture block 11 is completely clamped in the second clamping groove 16 after the pressing cap 14 is pressed to the greatest extent, so that the fixture block 11 and the second clamping groove 16 are tightly combined.

The utility model discloses a theory of operation and use flow: when in use, the needle head is taken out and sleeved on the needle seat 2, the infection-preventing protective cap 6 is pulled to complete liquid medicine extraction and exhaust, and then injection can be carried out, in the injection process, medical staff can hold the sleeve end 602 extending from the infection-preventing protective cap 6 by hand, so that the situation that fingers touch the main push rod 3 during operation can be avoided, cross infection of liquid medicine is prevented, after injection is completed, the aluminum foil protective film 17 is torn off, the end surface of the main rubber plug 5 is in contact with the inner wall of one end of the barrel body 1 close to the needle seat 2, the inner rubber plug 12 in the front sliding cavity 9 is pushed by the inner push rod 8 by pressing the pressing cap 14, the fixture block 11 abutted against the inner rubber plug 12 is driven to slide to the second fixture groove 16 along the first fixture groove 10, and the fixture block 11 is completely clamped in the second fixture groove 16, because of the raised particles on the fixture block 11, the fixture block 11 and the second fixture groove 16 are tightly combined, and the purpose, the used injector can not be reused, and the safe self-destruction of the injector is realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a self-destruction formula prevents infecting syringe, includes that one end has open-ended barrel (1), its characterized in that: the disposable syringe is characterized in that a needle seat (2) is arranged at one end, away from an opening, of the barrel body (1), a main push rod (3) is arranged in the barrel body (1), one end, located in the barrel body (1), of the main push rod (3) is connected with a main rubber plug (5) through a connecting seat (4), one end, away from the connecting seat (4), of the main push rod (3) is provided with an anti-infection protective cap (6), the anti-infection protective cap (6) is composed of a connecting end (601) and an extending sleeve end (602), the extending sleeve end (602) is arranged on the periphery of the main push rod (3), one end, away from the connecting seat (4), of the extending sleeve end (602) is connected with the outer edge of the connecting end (601), a through hole (7) is radially arranged in the main push rod (3), the through hole (7) is in sliding fit with an inner push rod (8), a front sliding cavity (9) communicated with the through hole (7) is arranged in the connecting seat (4, a clamping block (11) clamped and matched with a first clamping groove (10) is arranged in the front sliding cavity (9), an inner rubber plug (12) abutted against the clamping block (11) is arranged in the front sliding cavity (9), one end of the inner push rod (8) extends into the front sliding cavity (9) and is connected with the inner rubber plug (12), a rear sliding cavity (13) communicated with the through hole (7) is arranged inside one end of the main push rod (3) far away from the connecting seat (4), an operation opening corresponding to the front and rear of the rear sliding cavity (13) is arranged on the connecting end (601), a pressing cap (14) is arranged in the rear sliding cavity (13) in a sliding fit mode, one end of the inner push rod (8) extends into the rear sliding cavity (13) and is connected with the pressing cap (14), a liquid passing channel (15) is arranged inside the needle seat (2), a second clamping groove (16) clamped and matched with the clamping block (11) is arranged on the inner wall of one end, close to the main rubber plug (5), of the liquid passing channel (15), the first clamping groove (10) and the second clamping groove (16) correspond to each other in a front-back mode.

2. The self-destructive infection-preventing syringe as recited in claim 1, wherein: a protective film (17) is arranged in the operation port of the connecting end (601) in a sealing mode, and the protective film (17) is an aluminum foil film.

3. The self-destructive infection-preventing syringe as recited in claim 1, wherein: the outer surface of the extension sleeve end (602) is provided with an inner concave finger groove, and the surface of the inner concave finger groove is provided with anti-skid concave grains.

4. The self-destructive infection-preventing syringe as recited in claim 1, wherein: the fixture block (11) is composed of a base body and an outer connecting part, the base body is of a cylindrical structure, the outer connecting part is uniformly distributed on the outer surface of the base body in the radial direction, and protruding particles used for increasing friction force between the fixture block and the first clamping groove (10) and between the fixture block and the second clamping groove (16) are arranged on the surfaces of the base body and the outer connecting part.

5. The self-destructive infection-preventing syringe as recited in claim 1, wherein: the distance length between the pressing cap (14) and the cavity bottom of the rear sliding cavity (13) is greater than the distance length between the inner rubber plug (12) and the front port of the front sliding cavity (9).