CN112569430A

CN112569430A - Ring handle syringe

Info

Publication number: CN112569430A
Application number: CN202110130922.4A
Authority: CN
Inventors: 李嘉辉; 刘微微
Original assignee: Shenzhen Maipuqi Medical Technology Co ltd
Current assignee: Shenzhen Maipuqi Medical Technology Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2021-03-30

Abstract

The invention belongs to the technical field of medical instruments and discloses a ring handle injector which comprises an injection tube, wherein one end of the injection tube is fixedly sleeved with an O-shaped ring, one end of the injection tube is provided with a threaded joint, and a piston head is arranged inside the injection tube; the invention has the advantages that the structure is made of polycarbonate, the purpose of high pressure resistance is achieved, the threaded connector can be matched with a luer connector in the using process, the threaded connector made of the polycarbonate can be tightly connected with the external thread of the luer connector in the injection process, so that the situation of splashing and waste of medicine liquid can be avoided, the purpose of quantitative injection is achieved by spraying scale marks on the surface of the core rod and matching with a mode that the spring drives the arc-shaped block II to be in contact with the core rod for limiting, the injector can limit the injection quantity before medical staff injects a patient, and the situation that the medicine injection quantity is too much or too little can be avoided for the medical staff.

Description

Ring handle syringe

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a ring-handle injector.

Background

The ring handle injector is a medical instrument for manually injecting contrast medium and liquid medicine in the process of micro-trauma interventional therapy or diagnosis operation.

The existing annular handle injector cannot bear high pressure when being used with a luer connector in a matched mode, when the pressure is too high, the annular handle injector and the luer connector are easy to separate, so that the situation that liquid medicine is splashed and wasted is caused, the existing annular handle injector cannot perform quantitative injection in the injection process, the situation that the injection amount is too large or the injection amount is too small easily occurs when medical staff perform manual injection, the anaphylactic reaction of a patient can be caused due to too large injection amount, and the required medicine amount cannot be achieved due to too small injection amount.

Disclosure of Invention

The invention aims to provide a ring-handle injector which has the advantages of strong practicability and quantitative injection and solves the problems that the prior ring-handle injector has poor practicability and cannot perform quantitative injection.

In order to achieve the purpose, the invention provides the following technical scheme: ring handle syringe, including the injection tube, the fixed cover of one end of injection tube has connect O type circle, screwed joint is installed to the one end of injection tube, the inside of injection tube is equipped with the piston head, the snap ring is installed to the other end of injection tube, the inside of injection tube slides and has cup jointed the core bar, the surface spraying of core bar has the scale mark, the surface cover of core bar is equipped with the holding ring, the logical groove of establishing with the core bar cover is seted up to the inside of holding ring, one side an organic whole that leads to the groove inner chamber is moulded plastics has arc piece one, the inside of holding ring is equipped with arc piece two, one side of arc piece two has the spring through the spring mounting bolt, one side intercommunication that leads to the groove has the spread groove, the one.

Preferably, the surface symmetry of injection tube is equipped with handle one, one side that handle one is close to the injection tube is moulded plastics with injection tube an organic whole, one side of holding ring is equipped with handle two.

Preferably, guide grooves are symmetrically formed in the core rod, a guide rod is integrally molded on one side of the second handle, one side of each guide groove is communicated with a clamping groove, and clamping blocks clamped with the clamping grooves are symmetrically bolted on the surfaces of the guide rods.

Preferably, the inner part of the positioning ring is symmetrically provided with non-slip pads, the two non-slip pads are respectively positioned in the first arc-shaped block and the second arc-shaped block, and the inner side walls of the first arc-shaped block and the second arc-shaped block are bonded with the non-slip pads.

Preferably, a push-pull rod is sleeved on one side of the positioning ring, the inner portion of the spring is sleeved with the surface of the push-pull rod, one end of the push-pull rod is bolted with the second arc-shaped block, and the other end of the push-pull rod penetrates through the outer side of the positioning ring.

Preferably, one side of the positioning ring is provided with a ball, the surface of the ball is bolted with the push-pull rod, and the ball is circular.

Preferably, the length of the connecting groove is greater than that of the arc-shaped block II, a through hole is communicated with one side of the connecting groove, and the inner portion of the through hole is sleeved with the surface of the push-pull rod.

Preferably, the injection cylinder, the clamping ring and the threaded connector are all made of polycarbonate, the core rod and the handle II are both made of ABS resin, and the O-shaped ring and the piston head are both made of medical silica gel.

Compared with the prior art, the invention has the following beneficial effects:

1. the structure of the invention is made of polycarbonate, the purpose of high pressure resistance is achieved, the screw joint can be matched with a luer joint in the using process, and the screw joint made of polycarbonate can be tightly connected with the external thread of the luer joint in the injection process, so that the situation of splashing and waste of liquid medicine can not occur;

2. the invention achieves the purpose of quantitative injection by spraying scale marks on the surface of the core rod and matching with a mode that the spring drives the arc-shaped block II to contact and limit the core rod, so that the injector can limit the injection quantity required before medical staff injects a patient, and the medical staff can not inject too much or too little medicine.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the syringe of the present invention;

FIG. 3 is a schematic view of the core rod and the handle of the present invention in cooperation;

FIG. 4 is a cross-sectional view of a retaining ring in accordance with embodiment 2 of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 according to the present invention.

In the figure: 1. an injection tube; 2. an O-shaped ring; 3. a threaded joint; 4. a piston head; 5. a snap ring; 6. a core bar; 7. scale lines; 8. a positioning ring; 9. a through groove; 10. a first arc-shaped block; 11. a second arc block; 12. a spring; 13. connecting grooves; 14. a first handle; 15. a second handle; 16. a guide groove; 17. a guide bar; 18. a card slot; 19. a clamping block; 20. a non-slip mat; 21. a push-pull rod; 22. a ball; 23. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, the ring handle injector comprises an injection tube 1, an O-ring 2 is fixedly sleeved at one end of the injection tube 1, a threaded joint 3 is installed at one end of the injection tube 1, a piston head 4 is arranged inside the injection tube 1, a snap ring 5 is installed at the other end of the injection tube 1, a first handle 14 is symmetrically arranged on the surface of the injection tube 1, one side of the first handle 14 close to the injection tube 1 is integrally injection-molded with the injection tube 1, a second handle 15 is arranged at one side of a positioning ring 8, so that the injection work of medical staff is facilitated, the injection tube 1, the snap ring 5 and the threaded joint 3 are made of polycarbonate, the core rod 6 and the second handle 15 are made of ABS resin, the O-ring 2 and the piston head 4 are made of medical silica gel, the overall stability and applicability of the injector are enhanced, and the, the purpose of high pressure resistance is achieved, and the polycarbonate threaded connector 3 can be tightly connected with the external thread of the luer connector in the injection process, so that the situation that the liquid medicine is splashed and wasted can not occur.

Example 2

Referring to fig. 1-5, the ring-handle injector comprises an injection tube 1, an O-ring 2 is fixedly sleeved at one end of the injection tube 1, a threaded joint 3 is installed at one end of the injection tube 1, a piston head 4 is arranged inside the injection tube 1, a snap ring 5 is installed at the other end of the injection tube 1, a first handle 14 is symmetrically arranged on the surface of the injection tube 1, one side of the first handle 14 close to the injection tube 1 is integrally injection-molded with the injection tube 1, a second handle 15 is arranged at one side of a positioning ring 8 to facilitate the injection work of medical staff, the injection tube 1, the snap ring 5 and the threaded joint 3 are made of polycarbonate, the core bar 6 and the second handle 15 are made of ABS resin, the O-ring 2 and the piston head 4 are made of medical silica gel to enhance the overall stability and applicability of the injector, the core bar 6 is sleeved inside the injection tube, the surface of the core rod 6 is sleeved with a positioning ring 8, the inside of the positioning ring 8 is provided with a through groove 9 sleeved with the core rod 6, one side of the inner cavity of the through groove 9 is integrally injected with an arc-shaped block I10, the inside of the positioning ring 8 is provided with an arc-shaped block II 11, one side of the arc-shaped block II 11 is bolted with a spring 12 through a spring fixing part, one side of the through groove 9 is communicated with a connecting groove 13, one end of the spring 12 is bolted with the connecting groove 13 through the spring fixing part, the inside of the core rod 6 is symmetrically provided with a guide groove 16, one side of the handle II 15 is integrally injected with a guide rod 17, one side of the guide groove 16 is communicated with a clamping groove 18, the surface of the guide rod 17 is symmetrically bolted with a clamping block 19 clamped with the clamping groove 18, so that the handle II 15 can be repeatedly used, the inside of the positioning ring 8 is symmetrically provided with, the inner side walls of the first arc-shaped block 10 and the second arc-shaped block 11 are bonded with the anti-slip pad 20, so that the friction force between the first arc-shaped block 10 and the second arc-shaped block 11 and the core rod 6 is increased, the positioning ring 8 can be stably fixed on the surface of the core rod 6, one side of the positioning ring 8 is sleeved with the push-pull rod 21, the inner part of the spring 12 is sleeved with the surface of the push-pull rod 21, one end of the push-pull rod 21 is bolted with the second arc-shaped block 11, the other end of the push-pull rod 21 penetrates through the outer side of the positioning ring 8, so that the medical staff can conveniently adjust the position of the second arc-shaped block 11, one side of the positioning ring 8 is provided with the ball 22, the surface of the ball 22 is bolted with the push-pull rod 21, the ball 22 is circular, so that the medical staff can conveniently pull the push-pull rod 21, the length of the connecting groove 13 is greater than that, the push-pull rod 21 is limited, the push-pull rod 21 can be pulled back and moved in a linear state, the scale marks 7 are sprayed on the surface of the core rod 6, and the second arc-shaped block 11 and the core rod 6 are driven to be in contact limiting by matching with the spring 12, so that the purpose of quantitative injection is achieved, the injector can limit the injection amount required before medical staff injects a patient, and the situation that the injection amount of the medicine is too much or too little can not occur to the medical staff.

The working principle is as follows: when the syringe is used, the threaded connector 3 is connected with the luer connector, then the threaded connector 3 is rotationally locked, the polycarbonate threaded connector 3 and the luer connector can be locked together in the subsequent use, and the syringe can resist high pressure through the arrangement of the material of the syringe, so that the practicability of the syringe is improved;

before medicine injection, medical staff firstly suck liquid medicine into the injection tube 1, then the push-pull rod 21 is pulled to enable the push-pull rod 21 to drive the arc-shaped blocks two 11 to compress the spring 12, then the position of the scale mark 7 is compared according to the quantity required to be injected, the push-pull rod 21 is released, the compressed spring 12 automatically rebounds, the anti-skid pad 20 is contacted with the core rod 6, when the injection of the medical staff reaches the position of the positioning ring 8, the positioning ring 8 can be contacted with the injection tube 1 for pause, then the medical staff feels that the injection is stopped after the pause, and the purpose of quantitative injection is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Ring handle syringe, including injection tube (1), its characterized in that: the injection cylinder is characterized in that an O-shaped ring (2) is fixedly sleeved at one end of the injection cylinder (1), a threaded connector (3) is installed at one end of the injection cylinder (1), a piston head (4) is arranged inside the injection cylinder (1), a clamping ring (5) is installed at the other end of the injection cylinder (1), a core rod (6) is slidably sleeved inside the injection cylinder (1), scale marks (7) are sprayed on the surface of the core rod (6), a positioning ring (8) is sleeved on the surface of the core rod (6), a through groove (9) sleeved with the core rod (6) is formed inside the positioning ring (8), an arc-shaped block I (10) is integrally injected on one side of the inner cavity of the through groove (9), an arc-shaped block II (11) is arranged inside the positioning ring (8), a spring (12) is bolted on one side of the arc-shaped block II (11) through a spring fixing part, and, one end of the spring (12) is bolted with the connecting groove (13) through a spring fixing piece.

2. The ring handle syringe of claim 1, wherein: the injection tube is characterized in that a first handle (14) is symmetrically arranged on the surface of the injection tube (1), one side, close to the injection tube (1), of the first handle (14) is integrally injection-molded with the injection tube (1), and a second handle (15) is arranged on one side of the positioning ring (8).

3. The ring handle syringe of claim 2, wherein: guide grooves (16) are symmetrically formed in the core rod (6), a guide rod (17) is integrally molded on one side of the second handle (15), a clamping groove (18) is communicated with one side of the guide groove (16), and clamping blocks (19) clamped with the clamping groove (18) are symmetrically bolted on the surface of the guide rod (17).

4. The ring handle syringe of claim 1, wherein: the inside symmetry of holding ring (8) is equipped with slipmat (20), two slipmat (20) are located the inside of arc piece one (10) and arc piece two (11) respectively, the inside wall of arc piece one (10) and arc piece two (11) all bonds with slipmat (20).

5. The ring handle syringe of claim 1, wherein: one side of the positioning ring (8) is sleeved with a push-pull rod (21), the inner portion of the spring (12) is sleeved with the surface of the push-pull rod (21), one end of the push-pull rod (21) is bolted with the second arc-shaped block (11), and the other end of the push-pull rod (21) penetrates through the outer side of the positioning ring (8).

6. The ring handle syringe of claim 5, wherein: one side of the positioning ring (8) is provided with a ball (22), the surface of the ball (22) is bolted with the push-pull rod (21), and the ball (22) is circular.

7. The ring handle syringe of claim 6, wherein: the length of the connecting groove (13) is larger than that of the second arc-shaped block (11), one side of the connecting groove (13) is communicated with a through hole (23), and the inner portion of the through hole (23) is sleeved with the surface of the push-pull rod (21).

8. The ring handle syringe of claim 3, wherein: the material of injection tube (1), snap ring (5) and screwed joint (3) is polycarbonate, the material of core bar (6) and handle two (15) is ABS resin, the material of O type circle (2) and piston head (4) is medical silica gel.