CN219629733U - A curved needle for injection and release of stenosing tenosynovitis under ultrasound guidance - Google Patents

Abstract

The utility model belongs to the technical field of puncture needles, in particular to a curved needle used for injecting medicine and releasing stenosing tenosynovitis under the guidance of ultrasound. It includes a needle holder and a puncture needle, the front end of the needle holder is fixedly connected with the puncture needle, a puncture needle is arranged on the puncture needle, and a handle is arranged on the needle holder through a rotating assembly. The front end of the puncture needle is provided with a solid needle knife. The utility model can overcome the deficiencies of the prior art. The utility model is convenient for the medical personnel to hold the puncture, and at the same time, the orientation of the handle can be adjusted to better hold the puncture needle for puncture operation. At the same time, a needle knife for easy cutting.

Description

A curved needle for injection and release of stenosing tenosynovitis under ultrasound guidance

technical field

The utility model belongs to the technical field of puncture needles, in particular to a curved needle used for injecting medicine and releasing stenosing tenosynovitis under the guidance of ultrasound.

Background technique

With the continuous development of minimally invasive surgical instruments and imaging equipment, the popularity of minimally invasive interventional surgery continues to increase. Especially in the surgical treatment of tenosynovitis, the doctor needs to manipulate the puncture needle to finally and accurately make the needle reach the lesion point or the target point.

However, the existing puncture needles have the following problems:

1. The existing needles are set in the same straight line as the puncture needle and the needle base, and the needle base is also connected to the syringe. In the actual operation, the puncture needle needs to puncture the superficial skin. During the puncture process, due to the volume occupied by the fingers And the syringe occupies a large space, which will increase the inclination of the puncture needle, making it difficult to penetrate at a better angle, and requires a longer length of the puncture needle to achieve a more gentle entry angle, which will lead to puncture The length of the needle increases, the needle is prone to shaking, and it is difficult to achieve precise operation;

2. The existing puncture needles cannot achieve the function of cutting. For the treatment of stenosing tenosynovitis, it is necessary to cut the sticky tissue first, and then perform puncture and injection treatment;

3. The handle part of the existing puncture needle is too small, and the handle is fixed, so the orientation of the handle cannot be adjusted according to actual operation needs, and the puncture operation can be better realized.

Utility model content

The purpose of this utility model is to provide a curved needle for injection and release of stenosing tenosynovitis under the guidance of ultrasound, which can overcome the above-mentioned deficiencies in the prior art. The orientation of the handle can be adjusted to better hold the puncture needle for puncture operation, and a needle knife is arranged at the front end of the puncture needle to facilitate cutting.

In order to realize above-mentioned technical effect, the technical scheme that the utility model adopts is as follows:

A curved needle for injection and release of stenosing tenosynovitis under the guidance of ultrasound, comprising a needle base and a puncture needle, the front end of the needle base is fixedly connected with the puncture needle, and a puncture needle is arranged on the puncture needle , the needle seat is provided with a handle through a rotating assembly.

The front end of the puncture needle is provided with a solid needle knife.

The rotating assembly includes a rotating ring, the outer wall of the needle holder is provided with an annular rotating groove, the rotating ring is rotatably arranged in the rotating groove, and the handle is fixedly arranged on the outer wall of the rotating ring.

The inner wall of the rotating ring is provided with a mounting groove, and a fixed arc plate is arranged in the mounting groove, and the surface of the fixed arc plate in contact with the needle seat is provided with an adsorption hole, and the handle is provided with a through hole connected with the mounting groove. There is an adjustment rod in the through hole, one end of the adjustment rod is connected with the lifting plate, and the other end is fixedly connected with the fixed arc plate.

The inside of the handle is provided with an adjustment groove that communicates with the through hole, and the part of the adjustment rod located in the adjustment groove is fixed with a limit plate, and a spring is arranged between the upper end surface of the limit plate and the inner top surface of the adjustment groove.

Compared with the prior art, the beneficial effects of the utility model are:

1. The needle and the needle seat of this application are set at 30°, which can be conveniently connected to the syringe, which solves the problem that the existing needle seat and the needle are arranged in a straight line, and it is difficult to enter at a more gentle and smooth angle when puncturing into the patient's tendon sheath The problem is that the needle of this application can make the needle and the patient's body form a smaller angle during treatment, which can facilitate puncture, and at the same time can better connect the syringe, avoiding the need to lift the needle when connecting the syringe problem, but also suitable for short needles, with good stability when threading, without shaking;

2. The puncture needle of this application is equipped with a needle knife, which can realize the function of cutting. For the treatment of stenosing tenosynovitis, it can cut sticky tissue. It does not need to use a special scalpel to cut first. The device can realize the integration of cutting and puncture injection therapy;

3. The puncture needle of the present application can be rotated, the orientation of the handle can be adjusted according to actual operation needs, and the operation of penetrating, cutting and injection can be better realized.

Description of drawings

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

In the attached picture:

Fig. 1 is the structural representation of the utility model;

Figure 2 is a cross-sectional view of the needle hub;

Fig. 3 is an enlarged view of part A in Fig. 2;

Among them: 1. Rotating ring, 2. Puncture needle, 3. Puncture needle, 4. Needle knife, 5. Needle seat, 6. Handle, 7. Lifting plate, 8. Installation groove, 9. Fixed arc plate, 10. Adjustment Rod, 11. adjustment groove, 12. limiting plate, 13. spring, 14. adsorption hole.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Example:

Referring to accompanying drawings 1-3, a curved needle for injection and release of stenosing tenosynovitis under the guidance of ultrasound, including a needle holder 5 and a puncture needle 2, the front end of the needle holder 5 is fixedly connected with the puncture needle 2 , the needle seat 5 is made of hard medical plastic material, and the end of the puncture needle 2 is bent at 30°, so that it can better enter the patient's tendon sheath lesion, and at the same time, it can be punctured conveniently and smoothly, without occurrence of It is difficult to penetrate at a large angle, and at the same time, it can better connect the syringe, avoiding the problem of lifting the needle when connecting the syringe.

The upper part of the puncture needle 2 is integrally formed with a puncture needle 3, and the front end of the puncture needle 2 is provided with a needle knife 4 with a solid thin blade. The drug is then injected through the puncture needle 3 .

A handle 6 is provided on the needle holder 5 through a rotating assembly. The rotating assembly includes a rotating ring 1, the outer wall of the needle base 5 is provided with a concave annular rotating groove, the rotating ring 1 is rotatably arranged in the rotating groove, and the handle 6 is fixedly arranged on the outer wall of the rotating ring 1 .

The inner wall of the rotating ring 1 is provided with an arc-shaped installation groove 8, and a fixed arc plate 9 is arranged in the installation groove 8, and the fixed arc plate 9 is made of rubber material, and the fixed arc plate 9 is in contact with the needle holder 5 The surface of the surface is provided with an adsorption hole 14, which can adsorb the fixed arc plate 9 on the annular groove of the needle seat 5. The handle 6 is provided with a through hole connected with the installation groove 8, and an adjustment rod 10 is arranged in the through hole. , one end of the adjusting rod 10 is connected with the lifting plate 7, and the other end is fixedly connected with the fixed arc plate 9.

The inside of the handle 6 is provided with an adjustment groove 11 that communicates with the through hole, and the part of the adjustment rod 10 located in the adjustment groove 11 is fixedly provided with a limit plate 12, between the upper end surface of the limit plate 12 and the inner top surface of the adjustment groove 11. A spring 13 is arranged between them, and the normal state of the spring 13 is an elongated state.

The usage method of this embodiment:

When in use, first determine the angle of penetration, then pull up the lifting plate 7, so that the adjustment rod 10 is pulled up, the limit plate 12 moves upward, and the spring 13 is compressed, and at the same time the annular groove of the fixed arc plate 9 and the needle seat 5 Separate, then rotate the rotating ring 1 to a suitable position, loosen the lifting plate 7, under the reset action of the spring 13, the fixed arc plate 9 is refitted in the annular groove of the needle seat 5, and the handle 6 is fixed . Then, under the guidance of ultrasound, penetrate into the tendon sheath lesion of the patient, use the puncture needle 3 to cut the patient's diseased tissue, after cutting, connect the syringe to the end of the needle holder 5, and inject medicine to complete the treatment.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A curved needle for injection and release of stenosing tenosynovitis under the guidance of ultrasound, characterized in that: it comprises a needle seat (5) and a puncture needle (2), and the front end of the needle seat (5) is in contact with The puncture needle (2) is fixedly connected, the puncture needle (2) is provided with a puncture needle (3), and the needle seat (5) is provided with a handle (6) through a rotating assembly. 2. A curved needle for injection and release of stenosing tenosynovitis under the guidance of ultrasound according to claim 1, characterized in that: the front end of the puncture needle (2) is provided with a solid needle knife (4). 3. A curved needle for injection and release of stenosing tenosynovitis under ultrasound guidance according to claim 2, characterized in that: the rotating assembly includes a rotating ring (1), and the needle seat ( 5) The outer wall is provided with an annular rotating groove, the rotating ring (1) is rotatably arranged in the rotating groove, and the handle (6) is fixedly arranged on the outer wall of the rotating ring (1). 4. A curved needle for injection and release of stenosing tenosynovitis under ultrasound guidance according to claim 3, characterized in that: the inner wall of the rotating ring (1) is provided with a mounting groove (8) , the mounting groove (8) is provided with a fixed arc plate (9), the surface of the fixed arc plate (9) in contact with the needle seat (5) is provided with an adsorption hole, and the handle (6) is provided with a The through hole through which the installation groove (8) runs through, and an adjusting rod (10) is arranged in the through hole, and one end of the adjusting rod (10) is connected with the lifting plate (7), and the other end is fixedly connected with the fixed arc plate (9). 5. A curved needle for injection and release of stenosing tenosynovitis under the guidance of ultrasound according to claim 4, characterized in that: the inside of the handle (6) is provided with an adjustment groove that communicates with the through hole (11), the part of the adjusting rod (10) located in the adjusting groove (11) is fixedly provided with a limiting plate (12), and the upper end surface of the limiting plate (12) is arranged between the inner top surface of the adjusting groove (11) Spring (13) is arranged.