CN219398527U

CN219398527U - Medical needleless injector

Info

Publication number: CN219398527U
Application number: CN202320653413.4U
Authority: CN
Inventors: 雷冰; 陈浩; 刘涛
Original assignee: Sichuan Prius Biotechnology Co ltd
Current assignee: Sichuan Prius Biotechnology Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-07-25
Anticipated expiration: 2033-03-29

Abstract

The utility model relates to the technical field of medical appliances and discloses a medical needleless injector, which comprises a sleeve, wherein one side of the sleeve is bolted with a control valve, one end of the control valve is bolted with an internal thread joint, one end of the internal thread joint is provided with an injection tube, one end of the injection tube is integrally processed with an external thread joint, the inside of the sleeve is sleeved with a high-pressure gas cylinder, one end of the high-pressure gas cylinder is in threaded connection with a direct injection valve, and the inside of the injection tube is sleeved with a push plate; according to the utility model, the injection tube is in threaded connection with the internal threaded connector through the external threaded connector, then the control valve is started, so that the control valve discharges high-pressure gas in the high-pressure gas cylinder through the direct injection valve, then the high-pressure gas pushes the push plate to drive the piston to slide in the injection tube, the liquid medicine is sprayed out through the injection head by the piston, and the high-pressure jet can penetrate the skin of a human body to perform injection, so that needleless injection can be effectively performed.

Description

Medical needleless injector

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a medical needleless injector.

Background

Syringes are a common medical device. Mainly using needles to withdraw or inject gas or liquid.

Through mass search, chinese patent: application number: 201721815744.4, publication No.: CN208319654U, the utility model discloses a medical syringe; it comprises a cartridge and an injection needle; the head of the cartridge is movably inserted into the injection needle; it also comprises an exhaust head; the exhaust head is a hollow cylinder movably sleeved at the head of the cartridge, and a waterproof breathable layer is adhered to the upper end of the hollow cylinder; the water-proof ventilation layer completely covers the hollow part of the hollow cylinder; the utility model relates to a medical injector, which adopts the design of an exhaust head, the middle part of the exhaust head is hollow for the head of a cartridge to be inserted, and a waterproof and breathable layer of the exhaust head is used for the air in the cartridge to pass through and for blocking the liquid medicine in the cartridge; the air in the medicine cartridge can be conveniently discharged, so that air is prevented from being injected into a human body, and the waste of liquid medicine can be avoided.

In summary, the existing injector cannot effectively perform needleless injection, and meanwhile, cannot effectively and rapidly replace a high-pressure gas cylinder, so that the practicability of the device is reduced, and in order to solve the problems, the medical needleless injector is provided.

Disclosure of Invention

The utility model aims to provide a medical needleless injector, which has the advantages of effectively performing needleless injection and simultaneously effectively performing quick replacement on a high-pressure gas cylinder, and solves the problems that the existing injector cannot effectively perform needleless injection and simultaneously cannot effectively perform quick replacement on the high-pressure gas cylinder.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a medical needleless injector, includes the sleeve pipe, one side bolt of sleeve pipe has the control valve, the one end bolt of control valve has the female screw joint, the one end of female screw joint is provided with the injection tube, the one end integrated into one piece of injection tube has the male screw joint, the inside high-pressure gas cylinder that has cup jointed of sleeve pipe, the one end threaded connection of high-pressure gas cylinder has the direct injection valve.

Preferably, a push plate is sleeved in the injection tube, and a piston is bolted to one side of the push plate.

Preferably, the surface of the external threaded joint is sleeved with a sealing gasket, and one end of the external threaded joint is in threaded connection with the internal threaded joint.

Preferably, an injection head is integrally processed at one end of the injection tube, and graduation marks are printed on the surface of the injection tube.

Preferably, one end of the sleeve is in threaded connection with a limit cover, and the surface of the limit cover is provided with anti-skid patterns.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the injection tube is in threaded connection with the internal threaded connector through the external threaded connector, then the control valve is started, so that the control valve discharges high-pressure gas in the high-pressure gas cylinder through the direct injection valve, then the high-pressure gas pushes the push plate to drive the piston to slide in the injection tube, the liquid medicine is sprayed out through the injection head by the piston, and the high-pressure jet can penetrate the skin of a human body for injection, so that needleless injection can be effectively performed;

according to the utility model, the limiting cover is screwed, the limiting cover is taken down from one end of the sleeve, and then the high-pressure gas cylinder is taken out, so that the high-pressure gas cylinder can be effectively and quickly replaced.

Drawings

FIG. 1 is a front elevational view of the structure of the present utility model;

FIG. 2 is a partial structural elevation view of the present utility model;

fig. 3 is a partial structural cross-sectional view of the present utility model.

In the figure: 1. a sleeve; 2. a control valve; 3. an internally threaded joint; 4. a syringe; 5. an external threaded joint; 6. a high pressure gas cylinder; 7. a direct injection valve; 8. a push plate; 9. a piston; 10. a sealing gasket; 11. an injection head; 12. scale marks; 13. and a limit cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, an embodiment of the present utility model provides: the utility model provides a medical needleless injector, including sleeve pipe 1, one side bolt of sleeve pipe 1 has control valve 2, the one end bolt of control valve 2 has female screw joint 3, the one end of female screw joint 3 is provided with syringe 4, the one end integrated processing of syringe 4 has male screw joint 5, the user can carry out threaded connection with female screw joint 3 with syringe 4 through male screw joint 5, start control valve 2 afterwards, make control valve 2 discharge the inside high-pressure gas of high-pressure gas bottle 6 through directly spouting valve 7, then high-pressure gas promotes push pedal 8 and drives piston 9 and slide in the inside of syringe 4, afterwards piston 9 spouts the liquid medicine through injection head 11, high-pressure jet can pierce through human skin and inject, thereby needleless injection can be effectively carried out.

Further, the inside of syringe 4 has cup jointed push pedal 8, and one side bolt of push pedal 8 has piston 9, through setting up push pedal 8, can effectively cooperate piston 9 to use.

Further, the surface of the external thread joint 5 is sleeved with the sealing gasket 10, one end of the external thread joint 5 is in threaded connection with the internal thread joint 3, and the sealing performance of the device can be effectively improved by arranging the sealing gasket 10.

Referring to fig. 1, 2 and 3, an embodiment of the present utility model provides: the inside of sleeve pipe 1 has cup jointed high-pressure gas cylinder 6, and high-pressure gas cylinder 6's one end threaded connection has directly spouts valve 7, and the user can twist spacing lid 13, takes off spacing lid 13 from sleeve pipe 1's one end, takes out high-pressure gas cylinder 6 again to can effectively carry out quick replacement to high-pressure gas cylinder 6.

Further, the injection head 11 is integrally processed at one end of the injection tube 4, the graduation marks 12 are printed on the surface of the injection tube 4, and the observation of the liquid medicine amount can be facilitated by arranging the graduation marks 12.

Further, one end threaded connection of sleeve pipe 1 has spacing lid 13, and the anti-skidding line has been seted up on the surface of spacing lid 13, through setting up anti-skidding line, can be convenient for twist spacing lid 13.

Working principle: the user can carry out threaded connection with injection tube 4 through external screw thread joint 5 and female screw thread joint 3, then start control valve 2, make control valve 2 through directly spout valve 7 and go on discharging to the inside high-pressure gas of high-pressure gas cylinder 6, then high-pressure gas promotes push pedal 8 and drives piston 9 and slide in the inside of injection tube 4, afterwards piston 9 is spouted the liquid medicine through injection head 11, high-pressure jet can pierce through human skin and carry out the injection, thereby can effectively carry out needleless injection, simultaneously the user can twist limit cap 13, take off limit cap 13 from the one end of sleeve pipe 1, take out high-pressure gas cylinder 6 again, thereby can effectively carry out quick replacement to high-pressure gas cylinder 6.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. A medical needleless injector comprising a cannula (1), characterized in that: one side bolt of sleeve pipe (1) has control valve (2), the one end bolt of control valve (2) has female screw joint (3), the one end of female screw joint (3) is provided with injection tube (4), the one end integrated into one piece of injection tube (4) has male screw joint (5), high-pressure gas cylinder (6) have been cup jointed to the inside of sleeve pipe (1), the one end threaded connection of high-pressure gas cylinder (6) has direct injection valve (7).

2. A medical needleless injector as in claim 1, wherein: the inside of injection tube (4) has cup jointed push pedal (8), one side bolt of push pedal (8) has piston (9).

3. A medical needleless injector as in claim 1, wherein: the surface of the external threaded joint (5) is sleeved with a sealing gasket (10), and one end of the external threaded joint (5) is in threaded connection with the internal threaded joint (3).

4. A medical needleless injector as in claim 1, wherein: an injection head (11) is integrally processed at one end of the injection tube (4), and graduation marks (12) are printed on the surface of the injection tube (4).

5. A medical needleless injector as in claim 1, wherein: one end of the sleeve (1) is connected with a limit cover (13) in a threaded manner, and anti-skid patterns are formed on the surface of the limit cover (13).