CN211634678U - Thin-head needle syringe - Google Patents

Abstract

The utility model discloses a thin-head needle injector, which comprises a piston handle and a piston shaft, wherein the piston shaft is arranged at the middle position of the bottom of the piston handle, the utility model is additionally provided with a novel connector and an injection needle on the basis of the prior equipment, a first-order connecting bolt and a second-order connecting bolt are arranged on the connector, and a first-order connecting thread and a second-order connecting thread are arranged on the injection needle, and the first-order connecting bolt and the second-order connecting bolt can be perfectly screwed into the first-order connecting thread and the second-order connecting thread, when a user injects vaccines for children and the like, the user can rotate the injection needle and take the injection needle off from an empty cylinder when a large amount of drugs remain in the empty cylinder after injecting a work, and then the user takes out a new injection needle and screws the injection needle into the empty cylinder, then, the user can continue to perform new injection work, and waste of medicines is effectively prevented.

Description

A fine needle syringe

technical field

The utility model belongs to the technical field of medical equipment, in particular to a fine needle syringe.

Background technique

Syringe is a common medical tool, mainly used to extract or inject gas or liquid with needles. Syringes can also be used for medical equipment, containers, such as some scientific instruments in chromatography to inject through rubber diaphragms. It can reduce the incompatibility of the patient when using the syringe and improve the comfort of the patient.

The existing fine-tip needle syringe technology has the following problems: the existing fine-tip needle syringe needle is connected with the syringe, and when the user needs to replace a different needle due to work requirements, the user needs to replace the entire device, which increases the number of users. work cost.

Utility model content

The purpose of the present invention is to provide a fine needle syringe to solve the problem that the needle tube cannot be replaced in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a fine needle syringe, comprising a piston handle and a piston shaft, a piston shaft is provided at the middle position of the bottom of the piston handle, and a bottom position of the piston shaft is provided There is a piston, an empty cylinder is arranged at the outer position of the piston shaft, a sealing plug is arranged at the top position of the inner side of the empty cylinder, and a scale meter is arranged at the middle position of the outer front end of the empty cylinder. A connecting head is arranged at the middle position of the bottom, and an injection needle is arranged at the bottom position of the connecting head. A first-order connecting thread is arranged at the top position, a second-order connecting thread is arranged on the inner side of the connecting piece at a position below the first-order connecting thread, and a needle tube is arranged at the middle position of the bottom of the connecting piece.

Preferably, the connecting head includes a connecting pipe, a first-order connecting bolt and a second-order connecting bolt, a first-order connecting bolt is provided at the middle position of the bottom of the connecting pipe, and the bottom middle of the first-order connecting bolt is A second-order connecting bolt is arranged at the position.

Preferably, the scale unit on the scale scale is milliliters.

Preferably, the hollow cylinder has a circular tube structure, and a circular through hole structure is provided at the bottom of the hollow cylinder.

Preferably, the size of the piston is the same as the size of the inner side of the hollow cylinder.

Preferably, a circular through hole is provided in the middle of the inner side of the connecting pipe.

Preferably, the first-stage connecting bolts and the second-stage connecting bolts are provided with circular through-hole structures of the same size.

Compared with the prior art, the utility model provides a fine needle syringe, which has the following beneficial effects: the utility model adds a novel connector and an injection needle on the basis of the existing equipment, and the connector is provided with a new type of connecting head and an injection needle. The first-order connecting bolt and the second-order connecting bolt are provided with the first-order connecting thread and the second-order connecting thread on the injection needle, and the first-order connecting bolt and the second-order connecting bolt can be perfectly screwed into the first-order connection. In the thread and the second-order connection thread, when the user is injecting vaccines for children, due to the low demand for medicines by children, after one injection, there is still a large amount of medicine in the empty cylinder, the user can Rotate the injection needle and then remove the injection needle from the empty cylinder, then the user takes out a new injection needle and then screw the injection needle into the empty cylinder, and then the user can continue the new injection work, effectively preventing the waste of medicines .

Description of drawings

The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, and are used to explain the present utility model together with the embodiments of the present utility model, and do not constitute a limitation to the present utility model. In the accompanying drawings:

Fig. 1 is the structural representation of a kind of fine needle syringe proposed by the utility model;

Figure 2 is a schematic cross-sectional structure diagram of a fine needle syringe proposed by the utility model;

Figure 3 is a schematic structural diagram of the connector proposed by the utility model;

4 is a schematic diagram of the needle structure proposed by the utility model;

In the figure: 1. Piston handle; 2. Engraved scale; 3. Empty cylinder; 4. Connector; 5. Injection needle; 6. Sealing plug; 7. Piston shaft; 8. Piston; 41. Connecting pipe; 42. First-order connecting bolt; 43, second-order connecting bolt; 51, first-order connecting thread; 52, second-order connecting thread; 53, connecting piece; 54, needle tube.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: a fine needle syringe, comprising a piston handle 1 and a piston shaft 7, a piston shaft 7 is provided at the middle position of the bottom of the piston handle 1, and the The bottom position is provided with a piston 8, the size of the piston 8 is the same as the inner size of the hollow cylinder 3, and the above-mentioned settings can be used to achieve the effect of the piston, the outer position of the piston shaft 7 is provided with an empty cylinder 3, and the hollow cylinder 3 is a circular tube. The bottom of the empty cylinder 3 is provided with a circular through-hole structure. The above-mentioned settings are used to facilitate the inhalation and injection of medicines in the empty cylinder 3. A sealing plug 6 is provided at the top position of the inner side of the empty cylinder 3. A scale meter 2 is arranged at the middle position, and the scale unit on the scale table 2 is milliliters. The above setting can effectively improve the accuracy of the present utility model. The middle position of the bottom of the empty cylinder 3 is provided with a connecting head 4, which is connected to The head 4 includes a connecting pipe 41, a first-order connecting bolt 42 and a second-order connecting bolt 43. A circular through hole is arranged in the middle of the inner side of the connecting pipe 41. The above arrangement can facilitate the passage of the medicine in the empty cylinder 3 through the connecting head 4. , the bottom middle position of the connecting pipe 41 is provided with a first-order connecting bolt 42, the bottom middle position of the first-order connecting bolt 42 is provided with a second-order connecting bolt 43, the first-order connecting bolt 42 and the second-order connecting bolt 43 43 is provided with a circular through-hole structure of the same size, and the above arrangement can facilitate the medicine in the empty cylinder 3 to enter the injection needle 5 through the connecting head 4, and the bottom position of the connecting head 4 is provided with an injection needle 5, and the injection needle 5 It includes a first-order connecting thread 51, a second-order connecting thread 52, a connecting piece 53 and a needle tube 54. A first-order connecting thread 51 is provided at the inner top position of the connecting piece 53, and the inner side of the connecting piece 53 is located at the first-order connecting thread. A second-stage connecting thread 52 is provided at the lower position of 51 , and a needle tube 54 is provided at the middle position of the bottom of the connecting piece 53 .

The working principle and use process of the utility model: after the utility model is installed, the user first checks whether the external appearance of the utility model is in good condition, confirms that the utility model is in a normal working state, and then the user moves the utility model to the At the position to be used, the user first prepares the medicine to be injected, and then the user inserts the injection needle 5 of the present invention into the medicine, and then the user pulls the piston handle 1, and the piston handle 1 will drive the piston shaft 7 and the piston. 8. The medicine is sucked into the empty cylinder 3 through the injection needle 5, and the user can observe the medicine content in the empty cylinder 3 through the scale gauge 2 on the empty cylinder 3. After the medicine is drawn in, the user inserts the needle 54 of the present invention Insert into the patient's body, then the user pushes the piston handle 1, pushes the piston shaft 7 and the piston 8 through the piston handle 1, the medicine in the empty cylinder 3 can be injected into the patient's body, when the user is injecting vaccines for children, etc., due to Children's demand for medicines is low, and when there is a large amount of medicine left in the empty cylinder 3, the user can rotate the injection needle 5 and then remove the injection needle 5 from the empty cylinder 3, and then the user takes out a new injection needle 5 and then The injection needle 5 is screwed into the empty cylinder 3, and then the above steps are repeated to continue the injection work.

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

Claims (7)

1. A thin-headed needle syringe comprising a piston shank (1) and a piston shaft (7), characterized in that: the bottom intermediate position department of piston handle (1) is provided with piston shaft (7), the bottom position department of piston shaft (7) is provided with piston (8), the outside position department of piston shaft (7) is provided with empty section of thick bamboo (3), the inboard top position department of empty section of thick bamboo (3) is provided with sealing plug (6), the outside front end intermediate position department of empty section of thick bamboo (3) is provided with scale table (2), the bottom intermediate position department of empty section of thick bamboo (3) is provided with connector (4), the bottom position department of connector (4) is provided with syringe needle (5), syringe needle (5) are including first order connecting thread (51), second order connecting thread (52), connecting piece (53) and needle tubing (54), the inboard top position department of connecting piece (53) is provided with first order connecting thread (51), the inboard below position department that is located first order connecting thread (51) of connecting piece (53) is provided with second order connecting thread (52) And a needle tube (54) is arranged at the middle position of the bottom of the connecting piece (53).

2. A fine-tipped needle syringe according to claim 1, characterized in that: connector (4) are including connecting pipe (41), first order connecting bolt (42) and second order connecting bolt (43), the bottom intermediate position department of connecting pipe (41) is provided with first order connecting bolt (42), the bottom intermediate position department of first order connecting bolt (42) is provided with second order connecting bolt (43).

3. A fine-tipped needle syringe according to claim 1, characterized in that: the scale unit on the scale (2) is milliliter.

4. A fine-tipped needle syringe according to claim 1, characterized in that: the hollow cylinder (3) is of a circular pipe body structure, and a circular through hole structure is arranged at the bottom of the hollow cylinder (3).

5. A fine-tipped needle syringe according to claim 1, characterized in that: the size of the piston (8) is the same as the size of the inner side of the hollow cylinder (3).

6. A fine-tipped needle syringe according to claim 2, characterized in that: the middle of the inner side of the connecting pipe (41) is provided with a circular through hole.

7. A fine-tipped needle syringe according to claim 2, characterized in that: circular through hole structures with the same size are arranged in the first-step connecting bolt (42) and the second-step connecting bolt (43).

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