CN213158491U

CN213158491U - Improved syringe

Info

Publication number: CN213158491U
Application number: CN202020092722.5U
Authority: CN
Inventors: 贺巧玲; 向莉; 冯霞
Original assignee: Union Hospital Tongji Medical College Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology; Union Hospital Tongji Medical College Huazhong University of Science and Technology
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2021-05-11
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses an improved injector, which comprises an empty injector cylinder and a nipple arranged at one end of the empty injector cylinder, wherein a needle head is arranged on the nipple, and more than two clamping grooves are arranged on the outer side wall of the nipple; the needle head comprises a needle bolt and a needle stem, one end of the needle bolt is fixedly connected with the needle stem, and the opening at the other end of the needle bolt is sleeved on the nipple; the dop of open end inside wall fixedly connected with and draw-in groove one-to-one of pin, the dop passes through the draw-in groove and is connected with the nipple cooperation, set up the side cut groove that distributes in the dop both sides on the pin lateral wall, the one end opening that the side cut groove is close to the dop, through the dop on the pin and the nipple draw-in groove cooperation joint, can avoid the syringe needle to drop and be convenient for to the installation of syringe needle, the side spout that the draw-in groove both ends were provided with is convenient for dismantle the syringe needle, has reduced nurse's burden, has avoided because of the syringe needle.

Description

Improved syringe

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to improvement type syringe.

Background

The nurse is dispensing the in-process, need puncture the sealed bottle that has the bottle plug repeatedly with the syringe, and the syringe that uses at present has such a problem, because the frictional force of syringe needle and bottle plug, leads to the syringe needle to very easily drop from the syringe nipple portion, and after the syringe needle drops, the nurse has to change the syringe needle again, has increased the risk of medicine pollution so one, and the burden of nurse's work is increased on the second, and the consumptive material that also can be wasted to the three change syringe needles increases the cost.

Among the prior art, application number is CN 201821544013.5's a threaded connection syringe needle formula syringe, including syringe needle, syringe needle hood, connecting pipe and syringe cylinder, the front end of syringe cylinder is provided with the syringe nipple, and the nipple's of syringe outer wall is equipped with the external screw thread, the tail end of syringe needle is provided with the syringe needle connector, and the inner wall of syringe needle connector is equipped with the internal thread, the syringe needle is fixed on the syringe nipple through the connection to the mouth of two internal and external screw threads, but among the prior art, the installation of syringe needle with lift the inconvenience off, consume time, increased the burden of nurse's work.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing an improvement type syringe just in order to solve above-mentioned problem, the installation that possesses the syringe needle is convenient with the dismantlement, can avoid the syringe needle advantage such as drop, has solved the installation of syringe needle and has lifted inconvenience off, expends time, the big problem of nurse's burden.

(II) technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an improved injector, which comprises an empty injector cylinder and a nipple arranged at one end of the empty injector cylinder, wherein a needle head is arranged on the nipple, and more than two clamping grooves are arranged on the outer side wall of the nipple;

the needle head comprises a needle bolt and a needle stem, one end of the needle bolt is fixedly connected with the needle stem, and the opening at the other end of the needle bolt is sleeved on the nipple;

the utility model discloses a needle clamp, including the open end inside wall fixedly connected with of needle bolt and draw-in groove one-to-one dop, the dop passes through the draw-in groove to be connected with the nipple cooperation, set up the side cut groove that distributes in the dop both sides on the needle bolt lateral wall, the one end opening that the side cut groove is close to the dop.

Furthermore, two ends of each clamping groove are provided with side sliding grooves used for enabling the clamping heads to slide out of the clamping grooves in a rotating mode.

Further, the lateral surface of nipple is first conical butt surface, the one end that the empty section of thick bamboo of syringe was kept away from to the nipple is the narrow end, the medial surface of pin is the conical butt surface of second, the open end of pin is wide end, and when the dop imbeds the draw-in groove, first conical butt surface with the conical butt surface of second butt cooperation is connected each other.

Further, a taper angle of the first conical abutment surface and a taper angle of the second conical abutment surface are equal.

Further, an outer edge is arranged on the outer side of the opening end of the needle bolt, and the needle bolt and the outer edge are integrally formed.

Furthermore, a plurality of anti-skidding ribs which are uniformly distributed are fixedly arranged on the outer side of the pin.

Furthermore, the shape of the clamping groove is arc-shaped and extends along the circumferential direction of the nipple.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that: through dop and the draw-in groove cooperation joint on the nipple on the needle bolt, can avoid the syringe needle to drop and be convenient for to the installation of syringe needle, the side spout that the draw-in groove both ends were provided with is convenient for dismantle the syringe needle, has reduced nurse's burden, has avoided because of the syringe needle drops the medicine waste that causes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a schematic top view of the present invention in fig. 1;

fig. 3 is a schematic view of the cross-sectional structure a-a of fig. 2 according to the present invention;

fig. 4 is a schematic view of the present invention at a portion B of fig. 2;

fig. 5 is a schematic view of the present invention at a part C in fig. 3.

The reference numerals are explained below: 1. the syringe is empty; 2. a nipple; 3. needle fastening; 4. needle peduncle; 5. an outer edge; 6. a card slot; 7. anti-slip ribs; 8. cutting an edge groove; 9. a first conical abutment surface; 10. a second conical abutment surface; 11. a side chute; 12. and (4) clamping the head.

Detailed Description

For the purpose of the present invention; technical solutions and advantages will be more clear, and the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides an improved injector, which comprises an injector hollow cylinder 1 and a nipple 2 arranged at one end of the injector hollow cylinder 1, wherein a needle head is arranged on the nipple 2, more than two clamping grooves 6 are arranged on the outer side wall of the nipple 2, and preferably, the clamping grooves 6 are provided with two symmetrically distributed by taking the nipple 2 as a central axis; the needle head comprises a needle bolt 3 and a needle stem 4, one end of the needle bolt 3 is fixedly connected with the needle stem 4, and the other end of the needle bolt 3 is sleeved on the nipple 2 through an opening; the dop 12 of open end inside wall fixedly connected with and draw-in groove 6 one-to-one of pin bolt 3, dop 12 pass through draw-in groove 6 and are connected with the cooperation of nipple 2, set up on the 3 lateral walls of pin bolt and distribute in the side cut groove 8 of dop 12 both sides, and side cut groove 8 is close to the one end opening of dop 12.

Two ends of each clamping groove 6 are provided with side sliding grooves 11 for the clamping heads 12 to slide out of the clamping grooves 6 in a rotating mode. The side sliding groove 11 facilitates the chuck 12 to rotate and slide out of the clamping groove 6, so that the chuck 12 is separated from the clamping groove 6, and the needle head is convenient to dismount.

The lateral surface of the nipple 2 is a first conical abutting surface 9, one end of the nipple 2, which is far away from the empty syringe barrel 1, is a narrow end, the medial surface of the needle bolt 3 is a second conical abutting surface 10, the open end of the needle bolt 3 is a wide end, and when the clamping head 12 is embedded into the clamping groove 6, the first conical abutting surface 9 and the second conical abutting surface 10 are abutted, matched and connected with each other. The taper angle of the first conical abutment surface 9 and the taper angle of the second conical abutment surface 10 are equal.

An outer edge 5 is arranged on the outer side of the opening end of the pin 3, and the pin 3 and the outer edge 5 are integrally formed. A plurality of anti-skid ribs 7 which are uniformly distributed are fixedly arranged on the outer side of the pin 3. The anti-slip ribs 7 facilitate anti-slip holding rotation of the pin 3.

The shape of the clamping groove 6 is arc-shaped and extends along the circumferential direction of the nipple 2.

Adopt above-mentioned structure, when assembling the syringe needle to syringe empty tube 1, the open end of tying 3 with the needle is close to nipple 2, make 3 nestification of tying of needle in the outside of nipple 2, when 3 suits of tying of needle are in the outside of nipple 2, nipple 2's lateral wall extrusion dop 12, make 2 lateral walls of nipple between two trimming grooves 8 outwards bulge, when dop 12 moves draw-in groove 6 position, under the elastic force effect of 2 lateral walls of nipple itself, dop 12 resets and imbeds in draw-in groove 6, thereby realize the joint to the syringe needle, when taking off the syringe needle, it ties 3 to rotate the needle, 3 rotations of tying of needle drive dop 12 and rotate, the one end of dop 12 is along 11 roll-off draw-in grooves 6 of side spout, thereby make dop 12 and draw-in groove 6 separation, after the separation, it can take off to keep away from 2 direction separations of nipple with 3 needle.

Through dop 12 on the pin 3 and the 6 cooperation joints of draw-in groove on the nipple 2, can avoid the syringe needle to drop and be convenient for to the installation of syringe needle, the side spout 11 that draw-in groove 6 both ends were provided with is convenient for dismantle the syringe needle, has reduced nurse's burden, has avoided because of the syringe needle drops the medicine waste that causes.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An improvement type syringe which characterized in that: the disposable injector comprises an injector hollow cylinder (1) and a nipple (2) arranged at one end of the injector hollow cylinder (1), wherein a needle head is arranged on the nipple (2), and more than two clamping grooves (6) are formed in the outer side wall of the nipple (2);

the needle head comprises a needle bolt (3) and a needle stem (4), one end of the needle bolt (3) is fixedly connected with the needle stem (4), and the other end of the needle bolt (3) is sleeved on the nipple (2) through an opening;

the utility model discloses a needle is tied to open end inside wall fixedly connected with of (3) and dop (12) of draw-in groove (6) one-to-one, dop (12) are connected with nipple (2) cooperation through draw-in groove (6), needle is tied and is offered on (3) lateral wall and distributes in cut edge groove (8) of dop (12) both sides, and cut edge groove (8) are close to the one end opening of dop (12).

2. An improved injector according to claim 1, characterized in that: each side sliding groove (11) used for the chuck (12) to rotate to slide out of the clamping groove (6) is formed in the two ends of each clamping groove (6).

3. An improved injector according to claim 1, characterized in that: the lateral surface of nipple (2) is first conical butt face (9), the one end that empty section of thick bamboo (1) of syringe was kept away from in nipple (2) is the narrow end, the medial surface of pin (3) is second conical butt face (10), the open end of pin (3) is wide end, when dop (12) embedding draw-in groove (6) in, first conical butt face (9) with second conical butt face (10) butt cooperation connection each other.

4. An improved injector according to claim 3, characterized in that: the taper angle of the first conical abutment surface (9) and the taper angle of the second conical abutment surface (10) are equal.

5. An improved injector according to claim 1, characterized in that: an outer edge (5) is arranged on the outer side of the opening end of the needle bolt (3), and the needle bolt (3) and the outer edge (5) are integrally formed.

6. An improved injector according to claim 1, characterized in that: a plurality of anti-skid ribs (7) which are uniformly distributed are fixedly arranged on the outer side of the needle bolt (3).

7. An improved injector according to claim 1, characterized in that: the shape of the clamping groove (6) is arc-shaped and extends along the circumferential direction of the nipple (2).