Novel TOM needle

Abstract

The utility model relates to the technical field of medical instruments, and particularly discloses a novel TOM needle which comprises a cannula and a needle core, the cannula is sleeved outside the needle core, and one end of the needle core is provided with a tip; the sleeve handle is arranged at one end of the sleeve; the needle core handle is arranged at the end, away from the tip end, of the needle core, and the cannula handle is matched with the needle core handle; and the positioning assembly is arranged at the other end of the sleeve. According to the novel TOM needle, an efficient, safe and easy-to-operate surgical tool is provided for doctors, the success rate of surgery can be increased, the pain of a patient can be reduced, and therefore the novel TOM needle has wide application prospects in clinical application.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a novel TOM needle. Background Art

[0002] The TOM needle is a medical device widely used in orthopedic surgery. Its main function is to fix and pull bones to ensure stability and accuracy during surgery. However, in actual application, the existing TOM needle has some significant problems. First, the operation process is relatively complicated and requires doctors to have high professional skills and experience, which increases the difficulty and risk of the operation to a certain extent. Secondly, the existing TOM needle may not be firm enough when fixing bones, and it is easy to loosen or slip, which not only affects the surgical effect, but also may cause secondary harm to the patient. Finally, due to the design and material problems of the TOM needle, patients may feel uncomfortable during use, and even develop complications such as pain and infection. The existence of these problems not only affects the patient's postoperative recovery, but also reduces the overall satisfaction with the surgery.

[0003] Therefore, how to solve the problems of the existing TOM needle during use, such as complex operation, unstable fixation, and easy discomfort to patients, has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and proposes a new TOM needle, which aims to solve the problems of the existing TOM needle during use, such as complex operation, unstable fixation, and easy discomfort to patients.

[0005] The utility model provides a novel TOM needle, comprising:

[0006] A cannula and a needle core, wherein the cannula is sleeved on the outside of the needle core, and one end of the needle core is provided with a pointed end;

[0007] a sleeve handle, disposed at one end of the sleeve;

[0008] A needle core handle is provided at an end of the needle core away from the tip, and the cannula handle matches the needle core handle;

[0009] The positioning assembly is arranged at the other end of the sleeve.

[0010] Furthermore, the positioning component includes:

[0011] There are four first cones, which are arranged around the outer wall of the sleeve and are located on a side close to the sleeve handle;

[0012] There are four second conical bodies, which are arranged along the circumference of the sleeve, and the second conical bodies are located on a side away from the sleeve handle, and one end of the second conical body extends into the inner wall of the sleeve;

[0013] Wherein, the side of the first cone away from the sleeve handle and the side of the second cone close to the sleeve handle have the same shape and are connected.

[0014] Furthermore, the axial projection length of the first cone on the sleeve is 5 mm.

[0015] Furthermore, the axial projection length of the second cone on the sleeve is 10 mm.

[0016] Furthermore, the distance from the end of the second cone away from the sleeve handle to the tip is 15 mm.

[0017] Furthermore, the diameter of the needle core is 2.2 mm.

[0018] Furthermore, the inner diameter of the sleeve is 2.3 mm, and the outer diameter of the sleeve is 4 mm.

[0019] Furthermore, the distance between the farthest point of the positioning component away from the side of the sleeve and the outer side wall of the sleeve is 2 mm.

[0020] Furthermore, it also includes:

[0021] a fixing groove, located at an end of the sleeve away from the positioning assembly, the fixing groove being located inside the sleeve handle;

[0022] a fixing rod, located at an end of the needle core away from the positioning assembly, the fixing rod being arranged along the axial direction of the needle core, one end of the fixing rod being connected to the inner top wall of the needle core handle, and the other end of the needle core handle facing the fixing groove;

[0023] Wherein, the fixing rod is engaged with the fixing slot.

[0024] Compared with the existing technology, the beneficial effect of the present invention lies in that the new TOM needle provided by the present invention has a precise positioning system, balanced supporting force, ergonomic design, scientific material selection and a reliable locking mechanism; the TOM needle provided by the present invention provides doctors with an efficient, safe and easy-to-operate surgical tool, which helps to improve the success rate of surgery and reduce patient pain, and thus has broad application prospects in clinical applications.

[0025] The first and second cones of the new TOM needle provided by the utility model are used to ensure the stable positioning of the needle core within the cannula. The arrangement of four first and four second cones evenly distributes the positioning components around the circumference of the cannula, providing a more balanced support force and ensuring that the needle core does not shift during surgery. The shape design of the first and second cones creates a precise positioning space within the cannula, where the needle core can be firmly fixed, thereby improving the accuracy and safety of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the new TOM needle of the present utility model;

[0027] Figure 2 It is a cross-sectional view of the positioning assembly of the new TOM needle of the present utility model.

[0028] In the figure: 100, sleeve; 101, sleeve handle; 110, needle core; 111, needle core handle; 120, positioning assembly; 121, first cone; 122, second cone; 130, fixing groove; 131, fixing rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] See Figure 1-2 As shown, this embodiment provides a new TOM needle, including: a sleeve 100 and a needle core 110, the sleeve 100 is sleeved on the outside of the needle core 110, and a tip is provided at one end of the needle core 110; a sleeve handle 101 is provided at one end of the sleeve 100; a needle core handle 111 is provided at the end of the needle core 110 away from the tip, and the sleeve handle 101 matches the needle core handle 111; a positioning assembly 120 is provided at the other end of the sleeve 100.

[0034] It can be seen that the cannula 100 is used to protect the needle core 110 and provide a stable support structure so that the needle core 110 can be accurately positioned and operated during the operation; the design of the needle core handle 111 and the cannula handle 101 enables the doctor to hold and operate the TOM needle more conveniently when in use; the positioning assembly 120 is used to ensure that the position of the needle core 110 in the cannula 100 is fixed to prevent unnecessary movement during the operation.

[0035] Specifically, the positioning assembly 120 includes: a first conical body 121, which has four first conical bodies 121, and the four first conical bodies 121 are arranged on the outer wall of the sleeve 100, and the first conical bodies 121 are located on the side close to the sleeve handle 101; a second conical body 122, which has four second conical bodies 122, and the four second conical bodies 122 are arranged along the circumference of the sleeve 100, and the second conical bodies 122 are located on the side away from the sleeve handle 101, and one end of the second conical body 122 extends into the inner wall of the sleeve 100; wherein, the side of the first conical body 121 away from the sleeve handle 101 and the side of the second conical body 122 close to the sleeve handle 101 have the same shape and are connected.

[0036] It can be seen that the first tapered body 121 and the second tapered body 122 are used to ensure the stable positioning of the needle core 110 within the cannula 100. The arrangement of the four first tapered bodies 121 and the four second tapered bodies 122 allows the positioning assembly 120 to be evenly distributed around the circumference of the cannula 100, thereby providing a more balanced support force and ensuring that the needle core 110 does not shift during surgery. The shape design of the first tapered body 121 and the second tapered body 122 allows them to form a precise positioning space within the cannula 100, in which the needle core 110 can be firmly fixed, thereby improving the accuracy and safety of the surgery.

[0037] Specifically, the axial projection length of the first cone 121 on the sleeve 100 is 5 mm.

[0038] Specifically, the axial projection length of the second tapered body 122 on the sleeve 100 is 10 mm.

[0039] It can be seen that by precisely controlling the axial projection lengths of the first and second tapered bodies 121, 122, the positioning accuracy of the core needle 110 within the cannula 100 can be ensured. The shorter axial projection length of the first tapered body 121 helps provide sufficient space at the end of the cannula handle 101, making it easier for the surgeon to grasp and manipulate the TOM needle during surgery. The longer axial projection length of the second tapered body 122 ensures more stable support in the area away from the end of the cannula handle 101, preventing unnecessary movement of the core needle 110 during surgery.

[0040] It can be understood that the material selection of the needle core 110 has good biocompatibility and sufficient strength to ensure that it can withstand various operating forces without deformation or breakage during the operation. Medical stainless steel is preferably used, which has good corrosion resistance and mechanical properties; the surfaces of the cannula 100 and the needle core 110 are finely polished to reduce friction during the operation and improve the smoothness of the operation, and the surface treatment also helps to reduce damage to the tissue; the design of the needle core handle 111 and the cannula handle 101 takes into account ergonomic principles, so that the doctor can maintain a comfortable holding posture during long operations and reduce fatigue; the material selection of the positioning component 120 has good wear resistance and stability to ensure that the positioning component 120 will not be deformed during repeated use, thereby ensuring the stable positioning of the needle core 110 in the cannula 100.

[0041] Specifically, the distance from the end of the second tapered body 122 away from the sleeve handle 101 to the tip is 15 mm.

[0042] It can be seen that by precisely controlling the distance between the end of the second tapered body 122 away from the cannula handle 101 and the tip, the positioning accuracy of the needle core 110 within the cannula 100 can be ensured. This distance setting helps maintain the stability and accuracy of the needle core 110 during surgery while avoiding unnecessary damage to the patient's tissue. This distance setting also takes into account the needs of different surgical procedures, allowing the TOM needle to perform optimally in various surgical scenarios.

[0043] Specifically, the diameter of the needle core 110 is 2.2 mm.

[0044] Specifically, the inner diameter of the sleeve 100 is 2.3 mm, and the outer diameter of the sleeve 100 is 4 mm.

[0045] It can be seen that by precisely controlling the diameters of the core needle 110 and cannula 100, the core needle 110 can slide smoothly within the cannula 100 while maintaining sufficient support. The core needle 110 has a diameter of 2.2 mm, slightly smaller than the 2.3 mm inner diameter of the cannula 100. This provides ample room for the core needle 110 to move and prevent it from getting stuck during surgery. The outer diameter of the cannula 100 is 4 mm, ensuring sufficient strength and stability to protect the core needle 110 and provide reliable support.

[0046] It is understood that the material selection for cannula 100 and needle core 110 also takes into account temperature fluctuations during surgery and sterilization requirements. Medical-grade materials with high-temperature and high-pressure resistance are preferred to ensure they will not deform or damage during high-temperature and high-pressure sterilization. The thermal expansion coefficient of the materials is carefully selected to ensure that the precision of the cannula 100 and needle core 110 fits smoothly under varying temperature conditions.

[0047] Specifically, the distance between the farthest point of the positioning assembly 120 away from the side of the sleeve 100 and the outer side wall of the sleeve 100 is 2 mm.

[0048] It can be seen that by precisely controlling the distance between the furthest point on the side of the positioning assembly 120 away from the cannula 100 and the outer wall of the cannula 100, the stable positioning of the needle core 110 within the cannula 100 can be ensured. This distance setting helps maintain the stability and accuracy of the needle core 110 during surgery while avoiding unnecessary damage to the patient's tissue. This distance setting also takes into account the needs of different surgical procedures, allowing the TOM needle to perform optimally in various surgical scenarios.

[0049] Specifically, it also includes: a fixing groove 130, located at the end of the sleeve 100 away from the positioning assembly 120, and the fixing groove 130 is located inside the sleeve handle 101; a fixing rod 131, located at the end of the needle core 110 away from the positioning assembly 120, and the fixing rod 131 is arranged along the axial direction of the needle core 110, one end of the fixing rod 131 is connected to the inner top wall of the needle core handle 111, and the other end of the needle core handle 111 faces the fixing groove 130; wherein, the fixing rod 131 is clamped with the fixing groove 130.

[0050] As can be seen, the design of retaining groove 130 and retaining rod 131 provides a reliable locking mechanism for the core needle 110 and cannula 100. During surgery, retaining rod 131 engages with retaining groove 130, ensuring that the core needle 110 does not accidentally move or slip within cannula 100, thus ensuring surgical stability and safety. This locking mechanism allows the surgeon to focus more on the surgical procedure during delicate procedures, without having to worry about the stability of the core needle 110.

[0051] In summary, the new TOM needle provided in this embodiment has a precise positioning system, balanced support force, ergonomic design, scientific material selection and a reliable locking mechanism. The TOM needle provided in this embodiment provides doctors with an efficient, safe and easy-to-operate surgical tool, which helps to improve the success rate of surgery and reduce patient pain, and thus has broad application prospects in clinical applications.

[0052] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A new TOM needle, characterized in that: include: A cannula and a needle core, wherein the cannula is sleeved on the outside of the needle core, and one end of the needle core is provided with a pointed end; a sleeve handle, disposed at one end of the sleeve; A needle core handle is provided at an end of the needle core away from the tip, and the cannula handle matches the needle core handle; The positioning assembly is arranged at the other end of the sleeve.

2. The novel TOM needle according to claim 1, characterized in that: The positioning component includes: There are four first cones, which are arranged around the outer wall of the sleeve and are located on a side close to the sleeve handle; There are four second conical bodies, which are arranged along the circumference of the sleeve, and the second conical bodies are located on a side away from the sleeve handle, and one end of the second conical body extends into the inner wall of the sleeve; Wherein, the side of the first cone away from the sleeve handle and the side of the second cone close to the sleeve handle have the same shape and are connected.

3. The novel TOM needle according to claim 2, characterized in that: The axial projection length of the first cone on the sleeve is 5 mm.

4. The novel TOM needle according to claim 2, characterized in that: The axial projection length of the second cone on the sleeve is 10 mm.

5. The novel TOM needle according to claim 2, characterized in that: The distance from the end of the second cone away from the sleeve handle to the tip is 15 mm.

6. The novel TOM needle according to claim 2, characterized in that: The diameter of the needle core is 2.2 mm.

7. The novel TOM needle according to claim 2, characterized in that: The inner diameter of the sleeve is 2.3 mm, and the outer diameter of the sleeve is 4 mm.

8. The novel TOM needle according to claim 2, characterized in that: The distance between the farthest point of the positioning component away from the side of the sleeve and the outer side wall of the sleeve is 2 mm.

9. The novel TOM needle according to claim 2, characterized in that: Also includes: a fixing groove, located at an end of the sleeve away from the positioning assembly, the fixing groove being located inside the sleeve handle; a fixing rod, located at an end of the needle core away from the positioning assembly, the fixing rod being arranged along the axial direction of the needle core, one end of the fixing rod being connected to the inner top wall of the needle core handle, and the other end of the needle core handle facing the fixing groove; Wherein, the fixing rod is engaged with the fixing slot.

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