Tearable puncture needle

Abstract

The utility model discloses a tearable puncture needle which comprises a needle body, a needle point is arranged at the front end of the needle body, a needle point inclined plane is arranged at the tip of the needle point, a tearable groove is formed in the position, on the inner side wall of the needle point inclined plane, of the needle point, and a tearable gap extending to the needle body in the axial direction is formed in the rear portion of the needle point. According to the tearable puncture needle, a plurality of inclined-surface needle tips are connected and matched with a tearable puncture needle metal body, so that the ingenious connection part of the needle tips and a reserved tearable gap is optimized, tissue damage, nerve damage, puncture resistance, puncture force and pain during puncture are reduced, it is ensured that the puncture direction is not deviated, and the needle tips are limited by the tearable gap; the tearing strength and range can be better controlled, damage to surrounding tissue is reduced, the stable connecting position of the needle tip and the needle body is free of gaps, damage to the surrounding tissue in the puncture process can be reduced, and pain and discomfort of a patient are relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a tearable puncture needle. Background Art

[0002] Tearable puncture needles are commonly used in the medical field, widely used for puncture, drainage, sampling, and other procedures. While the angle of the tearable puncture needle is the most critical factor, issues such as the angle and bevel angle can complicate the surgical procedure. Furthermore, the needle tip can create significant resistance during puncture, which can easily lead to puncture deviation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a tearable puncture needle, including a needle body, a needle tip is provided at the front end of the needle body, the tip of the needle tip is provided with a needle tip bevel, the needle tip is provided with a tearing groove on the inner side wall of the needle tip bevel, and a tearing gap is provided behind the needle tip, extending axially to the needle body.

[0004] Preferably, at least two inclined surfaces are provided on both sides of the needle tip inclined surface, so that the tip of the needle tip forms multiple inclined surfaces.

[0005] Preferably, the length of the tear gap is 0.01-30 mm.

[0006] Preferably, a first bevel is provided on one side of the needle tip bevel, and a third bevel is provided on the other side of the first bevel.

[0007] Preferably, a second bevel is provided on the other side of the needle tip bevel, and a fourth bevel is provided on the other side of the second bevel.

[0008] Preferably, the first inclined surface and the second inclined surface have the same inclination angle, which is α.

[0009] Preferably, the third inclined surface and the fourth inclined surface have the same inclination angle, and the inclination angle between the third inclined surface and the fourth inclined surface is β, and α≤β.

[0010] Preferably, the angle α ranges from 11° to 60°.

[0011] Preferably, the range of β is 11° to 60°.

[0012] Preferably, the length of the needle body is 100-190 mm.

[0013] Technical effects and advantages of this utility model:

[0014] 1. In the present invention, multiple beveled needle tips are connected and matched with the tearable puncture needle metal body to optimize the connection between the needle tip and the reserved tearable gap, thereby reducing tissue damage, nerve damage, puncture resistance, puncture force and pain during puncture, and ensuring that the puncture direction is not deviated.

[0015] 2. In the present invention, the connection method between the needle tip and the tearing gap can reduce the resistance of the needle during the puncture process, making it easier for the needle to penetrate the tissue and improving the smoothness of the operation. Under the restriction of the tearing gap, the needle tip can better control the strength and range of the tearing and reduce damage to the surrounding tissues. The stable connection position between the needle tip and the needle body without a gap can reduce damage to the surrounding tissues during the puncture process and alleviate the patient's pain and discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the puncture needle structure provided in an embodiment of the present application.

[0017] In the figure: 1, needle body; 2, needle tip; 3, needle tip bevel; 4, first bevel; 5, second bevel; 6, third bevel; 7, fourth bevel; 8, tearing groove; 9, tearing gap. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0019] See also Figure 1 As shown, in this embodiment, a tearable puncture needle is provided, including a needle body 1, a needle tip 2 is provided at the front end of the needle body 1, a needle tip bevel 3 is provided at the tip of the needle tip 2, and at least two bevels are provided on both sides of the needle tip bevel 3, so that the tip of the needle tip 2 forms multiple bevels.

[0020] Specifically, a first bevel 4 is provided on one side of the needle tip bevel 3 , a third bevel 6 is provided on the other side of the first bevel 4 , a second bevel 5 is provided on the other side of the needle tip bevel 3 , and a fourth bevel 7 is provided on the other side of the second bevel 5 .

[0021] In this embodiment, the length of the needle body 1 is 100 to 190 mm. The increased length of the needle body 1 can adapt to puncture surgery for obese people.

[0022] In this embodiment, the first inclined surface 4 and the second inclined surface 5 have the same inclination angle, which is α, and the range of α is 11° to 60°.

[0023] In this embodiment, the third inclined surface 6 and the fourth inclined surface 7 have the same inclination angle, which is β, and the range of β is 11° to 60°.

[0024] Preferably, α≤β, and multiple bevels are set on the needle tip 2. The inclination angles of the first bevel 4 and the second bevel 5 are larger, which can stabilize the puncture and reduce the puncture error caused by friction. Because the openings at the third bevel 6 and the fourth bevel 7 are larger, the human tissue can be better separated, further reducing the puncture resistance and improving the smoothness of the puncture.

[0025] Compared with the existing puncture needles, the puncture needle of the present application has a tearing groove 8 on the inner wall of the needle tip bevel 3 of the needle tip 2. Through the provided tearing groove 8, the tearing force and direction can be more accurately controlled to ensure that the puncture needle can accurately penetrate the target area. The needle tip bevel 3 of the needle tip 2 is sharper, which reduces the puncture resistance during puncture, thereby reducing the reaction force on the needle body 1, making it easier to ensure the accuracy of the insertion direction when the needle body 1 is inserted, and the needle is inserted faster, reducing the stimulation to the pain nerves, alleviating the patient's pain, and thereby improving the comfort and success rate of treatment.

[0026] The multi-faceted angle design on the needle tip 2 can make the needle body 1 more stable in the tissue, reduce shaking and displacement, thereby improving the accuracy and reliability of the operation, allowing the needle body 1 to better adapt to tissues of different shapes and hardness, improve the puncture effect, and reduce the occurrence of complications.

[0027] The tearing groove 8 provided at the needle tip 2 can reduce damage to surrounding tissues. This design is especially important when precise insertion into sensitive areas such as blood vessels is required.

[0028] The third bevel 6 and the fourth bevel 7 are located behind the needle tip 2 and are provided with a tearing gap 9, which extends axially to the needle body 1. The length of the tearing gap 9 is 0.01-30 mm. The needle tip with multiple bevels is connected and cooperated with the metal body of the tearable puncture needle to optimize the connection between the needle tip and the reserved tearing gap 9, thereby reducing tissue damage, nerve damage, puncture resistance, puncture force and pain during puncture, and ensuring that the puncture direction does not deviate.

[0029] Furthermore, the inclination angle of the inner wall of the needle tip 1 at the opening of the tear gap 9 is 11° to 60°, that is, the angle between the inner wall of the tear gap 9 and the third inclined surface 6 or the fourth inclined surface 7 is 11° to 60°.

[0030] The connection between the needle tip 2 and the tear gap 9 can reduce the resistance of the needle during the puncture process, making it easier for the needle to penetrate the tissue and improving the smoothness of the operation.

[0031] The connection between the needle tip 2 and the tear gap 9 can provide a certain degree of stability, reduce the shaking or deviation of the needle during the perforation process, and thus better maintain the stability of the operation.

[0032] The needle tip 2 and the connection with the tear gap 9 can prevent the needle from being too deep or too shallow, thereby reducing damage to important tissues such as surrounding blood vessels and nerves and improving the safety of the operation.

[0033] Under the limitation of the tearing gap 9, the needle tip 2 can better control the strength and range of the tearing, reducing damage to surrounding tissues. The stable connection between the needle tip 2 and the needle body 1 without a gap can reduce damage to surrounding tissues during the puncture process and alleviate the patient's pain and discomfort.

[0034] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A tearable puncture needle, comprising a needle body, characterized in that: The front end of the needle body is provided with a needle tip, the tip of the needle tip is provided with a needle tip bevel, the needle tip is provided with a tearing groove on the inner side wall of the needle tip bevel, and a tearing gap extending axially to the needle body is provided behind the needle tip.

2. A tearable puncture needle according to claim 1, characterized in that: At least two inclined surfaces are arranged on both sides of the needle tip inclined surface, so that the tip of the needle tip forms a plurality of inclined surfaces.

3. A tearable puncture needle according to claim 2, characterized in that: The length of the tear gap is 0.01-30 mm.

4. The tearable puncture needle according to claim 2, characterized in that: A first bevel is arranged on one side of the needle tip bevel, and a third bevel is arranged on the other side of the first bevel.

5. The tearable puncture needle according to claim 4, characterized in that: A second bevel is arranged on the other side of the needle tip bevel, and a fourth bevel is arranged on the other side of the second bevel.

6. The tearable puncture needle according to claim 5, characterized in that: The first inclined surface and the second inclined surface have the same inclination angle, which is α.

7. The tearable puncture needle according to claim 6, characterized in that: The third inclined plane and the fourth inclined plane have the same inclination angle, and the inclination angle between the third inclined plane and the fourth inclined plane is β, and α≤β.

8. The tearable puncture needle according to claim 6, characterized in that: The range of α is 11° to 60°.

9. The tearable puncture needle according to claim 7, characterized in that: The range of β is 11° to 60°.

10. The tearable puncture needle according to claim 1, characterized in that: The length of the needle body is 100-190 mm.

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