CN204601277U - Magnetic-type disposable endoscope entry needle - Google Patents

Abstract

The utility model relates to a magnetic suction type disposable endoscope injection needle, which comprises an inner tube, an outer tube, a shell, a needle head and a syringe joint. In the outer tube, one end of the outer tube is fixedly installed with a guide tube, the other end of the outer tube is fixedly connected to the housing, and the first magnet and the second magnet are fixedly installed in the housing, the first magnet and the second magnet are arranged at intervals, and the outer surface of the inner tube is fixed A third magnet is installed, and the third magnet is located between the first magnet and the second magnet; the utility model has the advantages of simple structure, convenient operation, and effectively solves the problem that the magnetic suction type disposable endoscope injection needle is easy to return to the needle, so that It is more convenient for medical staff to operate and reduces the pain of patients.

Description

Magnetic Disposable Endoscopic Injection Needle

technical field

The utility model relates to the technical field of medical instruments, in particular to a magnetic suction type disposable endoscope injection needle.

Background technique

An endoscope is a tube equipped with a light that is passed through the mouth into the stomach or into the body through other natural orifices. Endoscopes can be used to see lesions that cannot be displayed by X-rays, so it is a commonly used medical device in clinical diagnosis and treatment. Medical staff extend the head of the device and the catheter part into the patient's body to observe it through the eyepiece. At the same time, the endoscope is also equipped with auxiliary equipment to perform sampling, treatment or surgery in real time while observing. Injection needles are one of the most important components in endoscopic treatment, and they are used to inject medicinal fluid into lumen tissues during clinical procedures. For example, with the help of an endoscope, doctors can observe ulcers or tumors in the digestive tract, and formulate the best treatment plan accordingly.

At present, the injection needles for endoscopes in the prior art have the following basic structure: the injection needle tip is connected with the infusion tube, and the infusion tube is fixed on the moving tube of the needle base, and the needle is controlled to be ejected and withdrawn by pushing the moving tube, and through the infusion tube, the needle point Inject the medicine into the tissues inside the body cavity. Conventional needle holders limit the movement of the moving tube by fitting gaps to prevent the needle tip from retreating, but this technical method is difficult to operate and the locking effect is not obvious.

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the problem that the syringe used under the endoscope is easy to return to the needle in the prior art, a magnetic suction type disposable endoscope injection needle is provided.

The technical scheme adopted by the utility model to solve the technical problem is: a magnetic suction type disposable endoscope injection needle, including an inner tube for delivering injection fluid, an outer tube for protecting the inner tube, a shell, a needle and a needle for Connect the syringe joint of the syringe, the needle is set at one end of the inner tube, the syringe joint is set at the other end of the inner tube, the inner tube is set in the outer tube, and a guide tube is fixedly installed at one end of the outer tube, and the guide tube is used for The needle is guided so that the needle can be accurately inserted into the injection position. The other end of the outer tube is fixedly connected to the housing, and a first magnet and a second magnet are fixedly installed in the housing. The first magnet and the second magnet are spaced apart It is provided that a third magnet is fixedly installed on the outer surface of the inner tube, and the third magnet is located between the first magnet and the second magnet.

In order to facilitate the use of medical staff, the outer surface of the housing is provided with protrusions for human hands to hold.

In order to make the injection needle more hygienic, the end of the syringe joint is provided with an end cap that seals the syringe joint.

In order to control the insertion depth of the needle into the injection position more accurately, the distance between the first magnet and the second magnet is equal to the injection stroke of the needle.

Before use, make the third magnet stick to the first magnet, and the needle is in the outer tube at this time; when the injection liquid needs to be injected, push the syringe joint to make the third magnet separate from the first magnet and stick to the second magnet, and the needle passes through The guide of the guide tube is accurately inserted into the injection position, the end cap of the syringe connector is opened, the syringe is connected, and the injection liquid is injected; after the injection is completed, the syringe connector is pulled to separate the third magnet from the second magnet, the needle is pulled out, and the injection is completed.

The beneficial effects of the utility model are: the utility model is simple in structure, easy to operate, effectively solves the problem that the magnetic suction disposable endoscopic injection needle is easy to return to the needle, makes the operation more convenient for medical staff, and reduces the pain of patients.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the two-dimensional structure schematic diagram of the present utility model;

Fig. 2 is a schematic diagram of bonding the first magnet and the third magnet in the utility model;

Fig. 3 is a schematic diagram of bonding the second magnet and the third magnet in the present invention.

In the figure: 1. Inner tube, 2. Outer tube, 3. Shell, 4. Needle, 5. Syringe connector, 6. Guide tube, 7. First magnet, 8. Second magnet, 9. Third magnet, 10 .Protrusion, 11.End cap.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

A magnetic suction type disposable endoscopic injection needle as shown in Figure 1 includes an inner tube 1 for delivering injection fluid, an outer tube 2 for protecting the inner tube 1, a casing 3, a needle 4 and a needle for connecting a syringe The syringe connector 5 and the needle 4 are set at one end of the inner tube 1, the syringe connector 5 is set at the other end of the inner tube 1, the inner tube 1 is set in the outer tube 2, and one end of the outer tube 2 is fixedly installed with a guide tube 6, which is used for the needle 4, so that the needle 4 can be accurately inserted into the injection position, the other end of the outer tube 2 is fixedly connected to the shell 3, and the first magnet 7 and the second magnet 8 are fixedly installed in the shell 3, and the first magnet 7 and the second magnet 8 are arranged at intervals, and a third magnet 9 is fixedly installed on the outer surface of the inner tube 1, and the third magnet 9 is located between the first magnet 7 and the second magnet 8.

In order to facilitate the use of medical staff, the outer surface of the casing 3 is provided with a protrusion 10 for human hands to hold.

In order to make the injection needle more hygienic, the end of the syringe connector 5 is provided with an end cap 11 for sealing the syringe connector 5 .

In order to control the insertion depth of the needle 4 into the injection position more accurately, the distance between the first magnet 7 and the second magnet 8 is equal to the injection stroke of the needle 4 .

Before use, make the third magnet 9 stick to the first magnet 7, as shown in Figure 2, at this time the needle 4 is in the outer tube 2; when the injection fluid needs to be injected, push the syringe connector 5 to disengage the third magnet 9 The first magnet 7 is attached to the second magnet 8, as shown in Figure 3; the needle 4 is accurately inserted into the injection position through the guidance of the guide tube 6, the end cap 11 of the syringe connector 5 is opened, the syringe is connected, and the injection solution is injected; After completion, the syringe connector 5 is pulled to disengage the third magnet 9 from the second magnet 8, the needle 4 is pulled out, and the injection is completed.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. A magnetic suction type disposable endoscopic injection needle, is characterized in that: comprise inner pipe (1), outer pipe (2), shell (3), needle head (4) and syringe connector (5), described The needle (4) is set at one end of the inner tube (1), the syringe joint (5) is set at the other end of the inner tube (1), the inner tube (1) is set in the outer tube (2), and the outer tube ( 2) A guide tube (6) is fixedly installed at one end, and the other end of the outer tube (2) is fixedly connected to the housing (3), and the first magnet (7) and the second magnet (8) are fixedly installed in the housing (3) ), the first magnet (7) and the second magnet (8) are arranged at intervals, and the outer surface of the inner tube (1) is fixed with a third magnet (9), and the third magnet (9) is located at between the first magnet (7) and the second magnet (8). 2. The magnetic suction type disposable endoscopic injection needle according to claim 1, characterized in that: the outer surface of the casing (3) is provided with a protrusion (10) for human hands to hold. 3. The magnetic suction type disposable endoscopic injection needle according to claim 1, characterized in that: the end of the syringe joint (5) is provided with an end cap (11) for sealing the syringe joint (5). 4. The magnetic suction type disposable endoscopic injection needle according to claim 1, characterized in that: the distance between the first magnet (7) and the second magnet (8) is equal to that of the needle (4) The injection strokes are equal.