A coaxial biopsy needle for puncturing superficial tumors in the chest and abdomen

Abstract

The utility model relates to the technical field of medical devices, and in particular to a coaxial biopsy needle for puncturing superficial tumors in the chest and abdomen. The utility model is provided with a limit device on the needle body, and a support member is provided on the limit device. The support members are respectively arranged at both ends of the limit device, and there is a certain angle. When puncturing, such as puncturing superficial tissue, an oblique needle insertion is adopted. When the needle is inserted, the support member will provide support for the puncture needle, so that the needle body will not be in a suspended state during puncture by medical staff, and there is a certain force point, which is more stable, reduces the probability of secondary adjustment, and thus improves efficiency; at the same time, the application is also provided with a breaking structure on the support member. When the needle is inserted obliquely, the support member can be broken according to the needle insertion angle, and the length of the support member can be adjusted, so that the scope of application is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a coaxial biopsy needle for puncturing superficial tumors of the chest and abdomen. Background Art

[0002] In clinical practice, puncture needles are often used to obtain superficial tissue samples for subsequent examinations or to provide samples before surgery. When puncturing superficial tumors in the chest and abdomen, there are often requirements for the puncture depth and puncture angle, such as requiring the puncture depth to be less than three centimeters and the puncture angle to be thirty to forty-five degrees. At the same time, when puncturing under the guidance of CT and DSA, the operator is required to maintain the puncture depth and angle of the puncture needle, and CT and DSA scans are required to verify the accuracy of the puncture.

[0003] However, the existing puncture needles are not provided with a supporting and fixing structure, and medical staff often have no force points when operating, resulting in the inability to reach the puncture site directly during puncture, or the inability to maintain stability during CT and DSA guided puncture, so that secondary adjustments are required to meet the requirements of puncture depth and angle. This process may cause secondary harm to the patient and easily cause the patient to be nervous. It is also time-consuming and inefficient.

[0004] In summary, there is an urgent need for a coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors, which has a certain force point, is relatively stable and accurate during puncture, and is easy to operate. Utility Model Content

[0005] The invention purpose of the utility model is to provide a coaxial biopsy needle for puncturing superficial tumors of the chest and abdomen in view of the problems existing in the prior art, which has a certain force point, is relatively stable and accurate during puncture, and is easy to operate.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A coaxial biopsy needle for puncturing superficial tumors in the chest and abdomen, comprising a needle head and a needle body, wherein the needle head and the needle body are fixedly connected, and a limiting device is also provided on the needle body, wherein the limiting device is movably connected to the needle body, and the limiting device is used to limit the puncture depth of the puncture needle;

[0008] The limiting device is provided with a support member, the support member includes a first support member and a second support member, the first support member and the second support member are respectively arranged at two ends of the limiting device, and the support member is used to support the puncture needle;

[0009] The support members are also evenly provided with breaking structures, and the breaking structures are used to adjust the length of the support members.

[0010] Preferably, the limiting device comprises a clamping member and a positioning member, and the positioning member is clamped with the clamping member.

[0011] Preferably, the first supporting member is arranged at an end of the clamping member away from the positioning member, and the second supporting member is arranged on the positioning member.

[0012] Preferably, the first support member and the second support member are staggered to form a certain angle.

[0013] Preferably, the angle is 30° to 45°.

[0014] Preferably, the first support member is arranged to pass through the end of the positioning member, and the first support member is a rectangular stick.

[0015] Preferably, the second supporting member is disposed through the positioning member, and the second supporting member is a rectangular stick.

[0016] Preferably, the breaking structure is a notch evenly arranged on the supporting member, and the notch is an arc-shaped notch.

[0017] Preferably, the breaking structure is a point-breaking structure provided on the supporting member.

[0018] Preferably, the length of the support member is 8 cm to 10 cm, and the break structure gap is arranged on the support member.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] The present application provides a limit device on the needle body, and a support member on the limit device. The support members are respectively arranged at both ends of the limit device and have a certain angle. When puncturing, such as puncturing superficial tissue, an oblique needle insertion is adopted. The support member provides support for the puncture needle during the needle insertion, so that the needle body will not be in a suspended state during puncture by medical staff, and there is a certain force point, which is more stable and reduces the probability of secondary adjustment, thereby improving efficiency. At the same time, the present application also provides a breaking structure on the support member. When the needle is inserted obliquely, the support member can be broken according to the needle insertion angle, and the length of the support member can be adjusted, which has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the utility model in which the broken structure is a notch;

[0024] Figure 4It is a structural schematic diagram of the utility model in which the breaking structure is a point breaking structure;

[0025] Figure 5 yes Figure 4 Enlarged view of part A in .

[0026] Markings in the figure: 1-needle head, 2-needle body, 3-limiting device, 31-clamping piece, 32-positioning piece, 4-support piece, 41-first support piece, 42-second support piece, 5-breaking structure. DETAILED DESCRIPTION

[0027] The utility model is described in detail below in conjunction with the accompanying drawings.

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, a coaxial biopsy needle for superficial tumor puncture in the chest and abdomen comprises a needle head 1 and a needle body 2, wherein the needle head 1 and the needle body 2 are fixedly connected, and a limiting device 3 is also provided on the needle body 2, wherein the limiting device 3 is movably connected with the needle body 2, and the limiting device 3 is used to limit the puncture depth of the puncture needle; a support member 4 is provided on the limiting device 3, wherein the support member 4 comprises a first support member 41 and a second support member 42, wherein the first support member 41 and the second support member 42 are respectively arranged at two ends of the limiting device 3, and the support member 4 is used to support the puncture needle; a breaking structure 5 is also evenly provided on the support member 4, and the breaking structure 5 is used to adjust the length of the support member 4. A scale is also provided on the needle body 2, and the scale is used in conjunction with the limiting device 3, and the support members 4 are staggeredly arranged at two ends of the limiting device 3.

[0031] When the present application is in use, the position of the limiting device 3 on the needle body 2 is first adjusted according to the puncture depth. After the position is determined, puncture is started. When oblique puncture is performed on superficial tissues, the support member 4 on the limiting device 3 will support the needle body 2, thereby making the puncture process more stable, the puncture site more accurate, reducing the probability of secondary puncture, reducing puncture complications, protecting patient experience, and improving efficiency.

[0032] Specifically, the limiting device 3 includes a clamping member 31 and a positioning member 32, and the positioning member 32 is clamped with the clamping member 31. The limiting device 3 is an existing conventional structure, and the structure is briefly described as follows: the clamping member 31 is symmetrically provided with an L-shaped groove, and the positioning member 32 is correspondingly provided with a protrusion. At the same time, the position where the positioning member 32 and the clamping member 31 are connected is an open structure, and the diameters of the position where the positioning member 32 is connected are different. By rotating the protrusion on the positioning member 32 on the L-shaped groove, the opening structure is transferred from the large diameter area to the small diameter area, and then the opening structure of the connecting part is locked, and then the limiting device 3 is locked on the needle body 2. The needle body 2 is also provided with a scale, and the positioning member 32 is aligned with the scale. The positioning member 32 and the clamping member 31 cooperate to lock the limiting device 3, and then limit according to the puncture depth.

[0033] Specifically, the first support member 41 is arranged at the end of the clamping member 31 away from the positioning member 32, and the second support member 42 is arranged on the positioning member 32. The first support member 41 and the second support member 42 are arranged at two ends of the limiting device 3, and the first support member 41 and the second support member 42 are staggered to form a certain angle, so that the needle body 2 is more stable when supported.

[0034] Specifically, the angle is 30° to 45°. The support member 4 has higher stability when supporting the puncture needle.

[0035] Specifically, the first support member 41 is arranged through the end of the positioning member 32, and the first support member 41 is a rectangular stick. The second support member 42 is arranged through the positioning member 32, and the second support member 42 is a rectangular stick. The first support member 41 and the second support member 42 are arranged through the limiting device 3, that is, they are arranged on both sides of the limiting device. When in use, both sides are provided with limiting devices, which is convenient to use and reduces the adjustment of angles and directions.

[0036] Specifically, the breaking structure 5 is a notch evenly arranged on the supporting member 4, and the notch is an arc-shaped notch. Figure 3 As shown, there are a plurality of notches, and the notches are evenly arranged on the support member 4. When in use, if the support member 4 is too long, a section of the support member 4 can be broken at the notch to adjust the length of the support member 4.

[0037] Specifically, the breaking structure 5 is a point breaking structure provided on the supporting member 4. Figure 4 and Figure 5As shown, the point-break structure is evenly arranged on the support member 4, and there are several of them. Specifically, the two sides of the rectangular stick-shaped support member are concave inward, and a circular hollow structure is arranged in the middle, which is convenient for breaking. The support member 4 can be broken at the point-break structure to adjust the length of the support member 4. The notch and the point-break structure are arranged to facilitate breaking and adjustment. The support member 4 can be made of PP material or PVC material.

[0038] Specifically, the length of the support member 4 is 8 cm to 10 cm, and the break structure 5 is disposed at intervals on the support member 4. The initial length of the support member 4 is set to 8 cm to 10 cm, and the length of the support member 4 can be adjusted by the break structure disposed on the support member 4.

[0039] Example 2

[0040] Furthermore, since the coaxial puncture needle used for thoracic and abdominal tumors usually weighs less than 30 grams, the support member 4 can be selected as a plastic metal wire, which can be adjusted according to the shape of the puncture site during use to better provide support and maintain stability during the puncture or scanning process.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coaxial biopsy needle for puncturing superficial tumors in the chest and abdomen, comprising a needle head (1) and a needle body (2), wherein the needle head (1) and the needle body (2) are fixedly connected, and characterized in that: The needle body (2) is also provided with a limiting device (3), the limiting device (3) is movably connected to the needle body (2), and the limiting device (3) is used to limit the puncture depth of the puncture needle; The limiting device (3) is provided with a support member (4), and the support member (4) comprises a first support member (41) and a second support member (42), the first support member (41) and the second support member (42) are respectively arranged at two ends of the limiting device (3), and the support member (4) is used to support the puncture needle; The support member (4) is also evenly provided with breaking structures (5), and the breaking structures (5) are used to adjust the length of the support member (4).

2. A coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 1, characterized in that: The limiting device (3) comprises a clamping member (31) and a positioning member (32), and the positioning member (32) is clamped with the clamping member (31).

3. A coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 2, characterized in that: The first supporting member (41) is arranged at an end of the clamping member (31) away from the positioning member (32), and the second supporting member (42) is arranged on the positioning member (32).

4. A coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 3, characterized in that: The first support member (41) and the second support member (42) are arranged alternately to form a certain angle.

5. A coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 4, characterized in that: The angle is 30° to 45°.

6. A coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 5, characterized in that: The first support member (41) is arranged to pass through the end of the positioning member (32), and the first support member (41) is a rectangular stick body.

7. A coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 6, characterized in that: The second support member (42) is disposed through the positioning member (32), and the second support member (42) is a rectangular stick body.

8. The coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 7, characterized in that: The breaking structure (5) is a notch evenly arranged on the supporting member (4), and the notch is an arc-shaped notch.

9. The coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 7, characterized in that: The breaking structure (5) is a point-breaking structure provided on the supporting member (4).

10. The coaxial biopsy needle for puncturing superficial thoracic and abdominal tumors according to claim 7, characterized in that: The length of the support member (4) is 8 cm to 10 cm, and the break structures (5) are arranged at intervals on the support member (4).

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