CN211705512U

CN211705512U - Medical syringe

Info

Publication number: CN211705512U
Application number: CN202020064270.XU
Authority: CN
Inventors: 杨磊; 朱新荣; 张汀仁
Original assignee: Jiangsu Meishuo Medical Technology Co ltd
Current assignee: Jiangsu Meishuo Medical Technology Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-20
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a medical syringe, including a piston section of thick bamboo, piston section of thick bamboo liquid outlet end is connected with the syringe needle, the syringe needle includes connecting cylinder and syringe needle, connecting cylinder surface cover is equipped with a protection section of thick bamboo, the pinhole of wearing has been seted up to protection section of thick bamboo terminal surface, protection section of thick bamboo lateral wall is connected with adjusting part, adjusting part is including adjusting a section of thick bamboo, it establishes at piston section of thick bamboo outer surface to adjust a section of thick bamboo slip cap, adjust a section of thick bamboo one end fixedly connected with adjusting collar, the spout has been seted up to adjusting collar inner wall bottom, slidable mounting has the fixture block in the spout, a plurality of draw-in grooves have been seted up to piston. The utility model discloses can carry out quick effectual regulation to the extension length of syringe needle according to actual conditions, effectively reduce the operation degree of difficulty when people use the syringe, effectively promote the holistic security of syringe simultaneously.

Description

Medical syringe

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a medical injector.

Background

Syringes are a common medical device. As early as the 15 th century, kathler, italian, proposed the principle of a syringe, primarily using a needle to draw or inject a gas or liquid. When most of the existing syringes are used, in order to reduce the phenomena of needle drop or needle breakage, the longitudinal axis of the syringe needs to be aligned with the axis of force applied by a user as much as possible, so that the operation difficulty is high, and certain defects exist.

To this end, we propose a medical injector.

SUMMERY OF THE UTILITY MODEL

The utility model provides a medical injector, which aims to freely adjust the extension length of a needle head according to actual conditions and reduce the operation difficulty when people use the injector.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

a medical injector comprises a piston cylinder, wherein a liquid outlet end of the piston cylinder is connected with an injection needle, the injection needle comprises a connecting cylinder detachably mounted with the liquid outlet end of the piston cylinder and a needle head fixedly mounted on the end surface of the connecting cylinder, the outer surface of the connecting cylinder is movably sleeved with a protective cylinder for accommodating the needle head, the end surface of the protective cylinder is provided with a needle penetrating hole for the needle head to penetrate through, the outer side wall of the protective cylinder is connected with an adjusting component, the adjusting component comprises an adjusting cylinder fixedly connected with the protective cylinder, the adjusting cylinder is slidably sleeved on the outer surface of the piston cylinder, one end of the adjusting cylinder, far away from the injection needle, is fixedly connected with an adjusting sleeve, the adjusting sleeve is sleeved on the outer surface of the piston cylinder, the bottom of the inner wall of the adjusting sleeve is provided with a chute, a clamping block is slidably, the bottom surface of the clamping block is fixedly provided with an adjusting column, the adjusting column is connected with the adjusting sleeve in a penetrating and sliding mode, and a compression spring is connected between the bottom surface of the clamping block and the bottom surface of the sliding groove.

As an improvement of the present invention, in the medical injector, the adjusting cylinder includes a connecting cover fixedly connected to the protecting cylinder and a guide cylinder slidably connected to the piston cylinder, and the connecting cover is threadedly connected to the guide cylinder.

Based on the technical characteristics, the connecting cover and the guide cylinder which are connected in a mutually detachable mode are arranged through the adjusting cylinder, so that people can conveniently detach the injection needle.

As an improvement of the utility model, in the medical injector, the bottom of the outer side wall of the adjusting sleeve is provided with the handle.

Based on the technical characteristics, the arrangement of the handle is convenient for people to hold the injector by hands to perform injection operation.

As an improvement of the present invention, in the medical injector, the adjusting column bottom is provided with a pull ring.

Based on the technical characteristics, the arrangement of the pull ring is convenient for people to pull the adjusting column to separate the clamping block from the clamping groove.

As an improvement of the present invention, in the medical injector, the compression spring sleeve is disposed on the adjusting column.

Based on above-mentioned technical characteristics, establish on adjusting the post through setting up compression spring cover, promoted compression spring's life.

As an improvement of the present invention, in the above medical injector, the piston cylinder outer surface is located the position department cover inside the adjusting cylinder and is equipped with the extension spring, the extension spring both ends respectively with the piston cylinder and adjusting cylinder fixed connection.

Based on the technical characteristics, the arrangement of the extension spring facilitates the return stroke of the adjusting cylinder.

As an improvement of the utility model, in the medical injector, the outer end face of the protective cylinder is arranged in the needle-threading hole and is provided with the sponge washer all around.

Based on above-mentioned technical characteristics, the setting of sponge packing ring has effectively promoted the travelling comfort that receives the liquid people among the injection process.

As an improvement of the utility model, in the medical injector, the adjusting cylinder and the adjusting sleeve are made of transparent plastic materials.

Based on the technical characteristics, the adjusting cylinder and the adjusting sleeve are made of transparent plastics, so that the weight is reduced, and the observation of the dosage of the liquid medicine in the piston cylinder is not influenced.

The utility model has the advantages that:

the utility model has the advantages of simple and reasonable design, through adjusting part's setting, can carry out quick effectual regulation to the extension length of syringe needle according to actual conditions, effectively reduced the operation degree of difficulty when people use the syringe, effectively promoted the holistic security of syringe simultaneously.

Drawings

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

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

fig. 2 is an enlarged schematic view of the structure at a of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a piston cylinder; 2-injection needle; 3-connecting the cylinder; 4-a needle head; 5-a protective cylinder; 6-pinhole penetration; 7-an adjustment assembly; 8-an adjusting cylinder; 9-adjusting sleeve; 10-a chute; 11-a fixture block; 12-a card slot; 13-a conditioning column; 14-a connecting cover; 15-a guide cylinder; 16-a grip; 17-a pull ring; 18-a compression spring; 19-an extension spring; 20-sponge washer.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the present embodiment is a medical injector, including a piston barrel 1, a liquid outlet end of the piston barrel 1 is connected with an injection needle 2, the injection needle 2 includes a connecting barrel 3 detachably mounted with the liquid outlet end of the piston barrel 1 and a needle 4 fixedly mounted on an end surface of the connecting barrel 3, a protective barrel 5 for accommodating the needle 4 is movably sleeved on an outer surface of the connecting barrel 3, a needle penetrating hole 6 for the needle 4 to penetrate is formed on the end surface of the protective barrel 5, a sponge washer 20 is disposed around the needle penetrating hole 6 on an outer end surface of the protective barrel 5, the arrangement of the sponge washer 20 effectively improves comfort of a person receiving liquid during injection, an adjusting assembly 7 is connected on an outer side wall of the protective barrel 5, the adjusting assembly 7 includes an adjusting barrel 8 fixedly connected with the protective barrel 5, the adjusting barrel 8 is slidably sleeved on an outer surface of the piston barrel 1, an extension spring 19 is sleeved on, the two ends of the extension spring 19 are respectively fixedly connected with the piston cylinder 1 and the adjusting cylinder 8, the arrangement of the extension spring 19 facilitates the return stroke of the adjusting cylinder 8, the end of the adjusting cylinder 8 far away from the injection needle 2 is fixedly connected with the adjusting sleeve 9, the adjusting cylinder 8 comprises a connecting cover 14 fixedly connected with the protective cylinder 5 and a guide cylinder 15 slidably connected with the piston cylinder 1, the connecting cover 14 is in threaded connection with the guide cylinder 15, the adjusting cylinder 8 is arranged as the connecting cover 14 and the guide cylinder 15 which are detachably connected with each other, so that people can conveniently disassemble the injection needle 2, the adjusting sleeve 9 is sleeved on the outer surface of the piston cylinder 1, the adjusting cylinder 8 and the adjusting sleeve 9 are both made of transparent plastic materials, so that the light weight is ensured without influencing people to observe the dosage of the liquid medicine in the piston cylinder 1, the bottom of the inner wall of the, a clamping block 11 is arranged in the sliding groove 10 in a sliding way, a plurality of clamping grooves 12 matched with the clamping block 11 are arranged on the outer surface of the piston cylinder 1 at uniform intervals, an adjusting column 13 is fixedly arranged on the bottom surface of the clamping block 11, the adjusting column 13 is connected with the adjusting sleeve 9 in a penetrating and sliding way, a compression spring 18 is connected between the bottom surface of the clamping block 11 and the bottom surface of the sliding groove 10, the relative position of the protective cylinder 5 and the needle head 4 is changed and the extending length of the needle head 4 is adjusted by pulling down the adjusting column 13 and selecting the clamping block 11 to match with different clamping grooves 12, the compression spring 18 is sleeved on the adjusting column 13, establish on adjusting post 13 through setting up compression spring 18 cover, promoted compression spring 18's life, 9 lateral wall bottoms of adjusting collar are provided with handle 16, and handle 16's setting makes things convenient for people to hand the syringe and carry out the injection operation, and the regulation post 13 bottom is provided with pull ring 17, and the setting of pull ring 17 makes things convenient for people to twitch regulation post 13 and makes fixture block 11 break away from with draw-in groove 12.

The utility model relates to a concrete implementation, when using, when the syringe is not used, syringe needle 4 is located protective barrel 5 completely, fixture block 11 and the draw-in groove 12 joint nearest to syringe needle 4 at this moment, when people need to use the syringe, people can adjust the extension length of syringe needle 4 according to actual conditions, people hold handle 16 at first, pull ring 17 downwards with the finger simultaneously, make fixture block 11 break away from draw-in groove 12 nearest to syringe needle 4, then promote piston barrel 1 suitable position, loosen pull ring 17, make fixture block 11 match with corresponding draw-in groove 12, accomplish the adjustment of the extension length of syringe needle 4, and is simple in operation, when people inject, protective barrel 5 terminal surface and patient's skin are laminated, play certain supporting role, the operation difficulty when people use the syringe is effectively reduced, after the injection is accomplished, people only need to pull down pull ring 17, under the action of the extension spring 19, the protective barrel 5 automatically returns to protect the needle 4, and the safety of the syringe is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A medical injector, characterized by: comprises a piston cylinder (1), the liquid outlet end of the piston cylinder (1) is connected with a syringe needle (2), the syringe needle (2) comprises a connecting cylinder (3) which is detachably mounted with the liquid outlet end of the piston cylinder (1) and a needle head (4) which is fixedly mounted on the end surface of the connecting cylinder (3), a protective cylinder (5) used for accommodating the needle head (4) is movably sleeved on the outer surface of the connecting cylinder (3), a needle penetrating hole (6) for the needle head (4) to pass through is formed in the end surface of the protective cylinder (5), the outer side wall of the protective cylinder (5) is connected with an adjusting component (7), the adjusting component (7) comprises an adjusting cylinder (8) which is fixedly connected with the protective cylinder (5), the adjusting cylinder (8) is slidably sleeved on the outer surface of the piston cylinder (1), one end of the adjusting cylinder (8) far away from the syringe needle (2) is fixedly connected with an adjusting sleeve (9), the adjusting sleeve (, spout (10) have been seted up to adjusting collar (9) inner wall bottom, slidable mounting has fixture block (11) in spout (10), a plurality of and fixture block (11) assorted draw-in grooves (12) have been seted up to piston cylinder (1) surface uniform interval, fixture block (11) bottom surface fixed mounting has regulation post (13), adjust post (13) and adjusting collar (9) and run through sliding connection, be connected with compression spring (18) between fixture block (11) bottom surface and spout (10) bottom surface.

2. A medical injector according to claim 1, characterized in that: the adjusting cylinder (8) comprises a connecting cover (14) fixedly connected with the protecting cylinder (5) and a guide cylinder (15) slidably connected with the piston cylinder (1), and the connecting cover (14) is in threaded connection with the guide cylinder (15).

3. A medical injector according to claim 1, characterized in that: and a handle (16) is arranged at the bottom of the outer side wall of the adjusting sleeve (9).

4. A medical injector according to claim 1, characterized in that: and a pull ring (17) is arranged at the bottom of the adjusting column (13).

5. A medical injector according to claim 1, characterized in that: the compression spring (18) is sleeved on the adjusting column (13).

6. A medical injector according to claim 1, characterized in that: the outer surface of the piston cylinder (1) is located in the inner position of the adjusting cylinder (8) and is sleeved with an extension spring (19), and two ends of the extension spring (19) are fixedly connected with the piston cylinder (1) and the adjusting cylinder (8) respectively.

7. A medical injector according to claim 1, characterized in that: sponge washers (20) are arranged on the outer end face of the protective cylinder (5) and around the needle penetrating hole (6).

8. A medical injector according to claim 1, characterized in that: the adjusting cylinder (8) and the adjusting sleeve (9) are made of transparent plastic materials.