CN215741023U

CN215741023U - Pre-filled medicine accurate injector for anesthesia

Info

Publication number: CN215741023U
Application number: CN202122122843.7U
Authority: CN
Inventors: 王慧; 王秀梅; 杨文曲; 郝鹏倩; 吴亚琼; 于菁; 张君
Original assignee: Shanxi Bethune Hospital of Shanxi Academy Of Medical Sciences
Current assignee: Shanxi Bethune Hospital of Shanxi Academy Of Medical Sciences
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-08
Anticipated expiration: 2031-09-03

Abstract

The utility model relates to an accurate pre-filled drug injector for anesthesia, which comprises a needle inserted into one end of a tube barrel, a push rod arranged in the tube barrel, a piston arranged on one end of the push rod in the tube barrel, a bearing arranged on the outer wall of one end of the tube barrel, which is far away from the needle, and a rotating body arranged on the bearing, wherein the push rod penetrates through the rotating body; the rotary body is provided with a counter bore on the inner wall, the bottom of the counter bore is provided with a spring, the spring is connected with a push rod in a jacking mode, the front end of the push rod is embedded with a ball in a rolling mode, the ball is connected with a circular rolling groove formed in the outer circumferential wall of the push rod in a rolling mode, a plurality of guide grooves different in length are vertically and uniformly formed in the outer wall of the push rod downwards, the upper end of each guide groove is communicated with the corresponding rolling groove, and the upper end of each guide groove is located in the corresponding rolling groove. The utility model can adjust the stock of the pipe barrel and the upward sliding height of the piston according to the requirement, reduce the labor intensity of medical personnel, improve the working efficiency, greatly reduce the operation error and improve the accuracy of the pumped medicine.

Description

Pre-filled medicine accurate injector for anesthesia

Technical Field

The utility model belongs to the field of medical instruments, and relates to a pre-filled accurate drug injector for anesthesia.

Background

Modern medicine develops rapidly, anesthesia is increasingly important as the center of surgery, as a support platform of surgery, anesthesia advances gradually to a precise and comfortable direction, most of injectors used as drug administration carriers of anesthesia and the like are manual injectors, quantitative injection is required under the condition of precise anesthesia injection, for example, sedation, analgesia and muscle relaxation drugs are matched with each other to achieve an ideal anesthesia state, therefore, anesthetic drugs need to be accurately configured according to individual conditions of patients, injection amount needs to be manually adjusted for each quantitative injection, and the control is difficult, complicated and large in workload, so that a quantitative injector special for anesthesia needs to be invented to solve the problems.

Disclosure of Invention

In view of the above, the present invention provides a pre-filled precise injector for anesthesia.

In order to achieve the purpose, the technical scheme is as follows:

the pre-filled medicine precise injector for anesthesia comprises a barrel, wherein a needle is inserted into one end of the barrel, a push rod is arranged in the barrel, a piston is arranged at one end of the push rod in the barrel, a bearing is arranged on the outer wall of one end, away from the needle, of the barrel, a rotating body is arranged on the bearing, and meanwhile, the push rod penetrates through the rotating body;

the inner wall of the rotating body is provided with a counter bore, the bottom of the counter bore is provided with a spring, the spring is connected with a push rod in a propping manner, the front end of the push rod is embedded with balls in a rolling manner, so that the balls are connected in a rolling groove of a circular ring shape arranged on the outer circumferential wall of the push rod in a rolling manner, the outer wall of the push rod is vertically and uniformly provided with a plurality of guide grooves with different lengths downwards, the upper ends of the guide grooves are all communicated with the rolling groove, the upper end of the guide groove is arranged in the rolling groove, the depth of the guide groove is greater than that of the rolling groove, and the communicated end parts of the guide groove and the rolling groove are excessively connected through radian, so that the balls can be conveniently rolled and switched between the rolling groove and the guide groove;

in addition, a plurality of stock marks are correspondingly arranged on the outer wall of the push rod and above the guide groove, and meanwhile, a directional mark is arranged on the upper surface of the rotating body and is square on the push rod.

As a further improvement of the utility model: the counterbore axis points toward the pushrod axis.

As a further improvement of the utility model: when the ejector rod is abutted to the roller groove, the piston is pushed to the bottom of the pipe barrel.

The utility model has the beneficial effects that:

the utility model can adjust the stock of the pipe barrel and the upward sliding height of the piston according to the requirement, implement accurate injection, reduce the labor intensity of medical personnel, improve the working efficiency, greatly reduce the operation error and improve the accuracy of the sucked medicine, and the device has simple structure and reasonable and ingenious design.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

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

fig. 2 is a schematic view showing the assembly of the rotating body and the push rod according to the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

Please refer to fig. 1-2:

the pre-filled drug precise injector for anesthesia comprises a barrel 1, wherein a needle 2 is inserted into one end of the barrel 1, a push rod 3 is arranged in the barrel 1, a piston 4 is arranged at one end of the push rod 3 in the barrel 1, a bearing 5 is arranged on the outer wall of one end of the barrel 1, which is far away from the needle 2, a rotating body 6 is arranged on the bearing 5, and meanwhile, the push rod 3 penetrates through the rotating body 6;

the inner wall of the rotating body 6 is provided with a counter bore 7, the bottom of the counter bore 7 is provided with a spring 8, the spring 8 is connected with a top rod 9 in a propping manner, the axis of the counter bore 7 points to the axis of the push rod 3, when the top rod 9 is connected in a rolling groove 10 in a propping manner, the piston 4 is pushed to the bottommost part of the pipe barrel 1, the front end of the top rod 9 is embedded with a ball 11 in a rolling manner, so that the ball 11 is connected in a rolling groove 10 of a circular ring shape which is arranged on the outer circumferential wall of the push rod 3 in a rolling manner, the outer wall of the push rod 3 is vertically and downwards uniformly provided with a plurality of guide grooves 12 with different lengths, the upper ends of the guide grooves 12 are all communicated with the rolling groove 10, the upper ends of the guide grooves 12 are arranged in the rolling groove 10, the depth of the guide grooves 12 is greater than that of the rolling groove 10, and the ends of the guide grooves 12 communicated with the rolling groove 10 are excessively connected through radians, so that the ball 11 can conveniently roll and switch between the rolling groove 10 and the guide grooves 12;

in addition, a plurality of storage marks 13 are correspondingly arranged on the outer wall of the push rod 3 and above the guide groove 12, meanwhile, the upper surface of the rotating body 6 is provided with a directional mark 14, the directional mark 14 is arranged on the right side of the push rod 3, and the directional mark 14 points to the axis of the push rod.

The length of the guide groove 12 is 1ml-5ml, one jump degree is set for every 0.5ml, 10 gears are totally set, or the length is 1ml-10ml, one jump degree is set for every 0.5/1ml, 10-20 gears are totally set, according to the actual requirement, the rotating body 6 is rotated, the ball 11 is rolled into the guide groove 12 at the corresponding storage mark 13 position, then the purpose of pre-storing the medicine in the injector can be realized, and the maximum ml is not more than 20 ml.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. Accurate syringe of pre-filled medicine for anesthesia, including the bobbin, the grafting of bobbin one end has the syringe needle, its characterized in that:

a push rod is arranged in the pipe barrel, a piston is arranged at one end of the push rod in the pipe barrel, a bearing is arranged on the outer wall of one end, away from the needle, of the pipe barrel, a rotating body is arranged on the bearing, and meanwhile, the push rod penetrates through the rotating body;

2. A pre-filled precision drug syringe for anesthesia as set forth in claim 1, wherein: the counterbore axis points toward the pushrod axis.

3. A pre-filled precision drug syringe for anesthesia as set forth in claim 1, wherein: when the ejector rod is abutted to the roller groove, the piston is pushed to the bottom of the pipe barrel.