An ablation needle positioning stand

Abstract

The present application belongs to the field of medical devices, and relates to an ablation needle positioning support, comprising a support body, a limiting component and a support leg component. The limiting component is fixed to the support body and is used for limiting the movement of the ablation needle in a preset direction; the support leg component comprises a plurality of support legs mounted on the support body, and at least part of the support legs are movably connected with the support body so as to be able to adjust the relative position and / or angle with the support body. The support body of the present application establishes support on the surface of the human body, and at least part of the support legs are movably connected with the support body, so that the adaptation of the skin curve at different positions of the human body can be realized. The limiting component can establish the limitation on the ablation needle, limit the movable direction of the ablation needle, and significantly reduce the difficulty of keeping the ablation needle stable after puncture.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to an ablation needle positioning stent. Background Technology

[0002] Ablation needles are core medical devices in the field of minimally invasive interventional therapy. They deliver energy to lesion tissue (such as tumors or abnormally proliferating tissue) through percutaneous puncture and use physical effects such as heat and cold to inactivate the lesion in situ. They have the characteristics of minimal trauma, rapid recovery, and strong targeting, and are widely used in tumor treatment and intervention of some benign lesions.

[0003] In the existing technology, ablation needles can be used to treat a variety of diseases. However, the puncture sites for ablation needles usually vary greatly depending on the disease. Different sites are caused by differences in the skin, muscles, and bones of the human body, and there are also differences in the physical condition of different patients. For different diseases and different patients, ablation needles require different puncture and needle placement plans, which presents a great deal of operational difficulty. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an ablation needle positioning bracket to solve the problem of operational difficulties in different puncture and needle placement schemes of ablation needles in the prior art.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] An ablation needle positioning stent, comprising:

[0007] Support body;

[0008] A limiting component is fixed to the support body, and the limiting component is used to restrict the movement of the ablation needle in a preset direction;

[0009] The support leg assembly includes a plurality of support legs mounted on the support body, at least a portion of the support legs being movably connected to the support body to adjust their relative position and / or angle with respect to the support body.

[0010] Preferably, in the ablation needle positioning bracket of the present invention, the support leg includes:

[0011] Rod body;

[0012] An adsorption element is attached to one end of the rod and is used to adhere to human skin.

[0013] Preferably, in the ablation needle positioning bracket of the present invention, one end of the rod has a universal ball, the adsorption element includes an adsorption element body and a sleeve, and the sleeve is fitted onto the universal ball; by rotating the sleeve, the relative angle between the adsorption element body and the rod can be changed.

[0014] Preferably, the ablation needle positioning bracket of the present invention includes a first rotating arm and a second rotating arm in its main body, wherein the first rotating arm and the second rotating arm are hinged together.

[0015] At least a portion of the support leg is movably connected to the first rotating arm and / or the second rotating arm to adjust its relative position and / or angle with respect to the first rotating arm or the second rotating arm.

[0016] Preferably, in the ablation needle positioning bracket of the present invention, the limiting component includes a first limiting member and a second limiting member, wherein the first limiting member is fixed to one side of the first rotating arm and the second limiting member is fixed to one side of the second rotating arm;

[0017] The first rotating arm and the second rotating arm can switch between at least a first included angle and a second included angle through relative rotation;

[0018] When the first included angle is reached, the first limiting member and the second limiting member can restrict the movement of the ablation needle in a preset direction;

[0019] When the second included angle is reached, the first limiting member and the second limiting member can release the ablation needle.

[0020] Preferably, in the ablation needle positioning bracket of the present invention, at least a portion of the support legs are threadedly connected to the first rotating arm and / or the second rotating arm or are movably connected with damping.

[0021] Preferably, in the ablation needle positioning bracket of the present invention, the support leg includes:

[0022] An adjusting component is connected to the rod body, and the adjusting component is used to apply external force to drive the rod body to move.

[0023] Preferably, in the ablation needle positioning bracket of the present invention, the support legs are installed at one or both ends of the first rotating arm and one or both ends of the second rotating arm, and the line connecting the support legs forms a triangle, and the limiting component is located within the projection range of the triangle.

[0024] Preferably, in the ablation needle positioning bracket of the present invention, one end of the first rotating arm has a rotating shaft, and one end of the second rotating arm has a shaft hole, wherein the rotating shaft is installed in the shaft hole;

[0025] The ablation needle positioning bracket also includes a limiting block, which is used to prevent the rotating shaft from disengaging from the shaft hole.

[0026] Preferably, in the ablation needle positioning bracket of the present invention, the first limiting member has a first buckle, and the second limiting member has a second buckle;

[0027] When the first rotating arm and the second rotating arm reach the first included angle, the second buckle can engage and fix with the first buckle.

[0028] Preferably, in the ablation needle positioning bracket of the present invention, when the first rotating arm and the second rotating arm reach the first included angle, the first limiting member and the second limiting member are assembled into a complete hollow cylinder, and the inner wall of the hollow cylinder is used to restrict the movement of the ablation needle.

[0029] The beneficial effects of this invention are as follows: This invention establishes support on the human body surface through its main support structure, with at least some supporting legs movably connected to the main support structure, enabling adaptation to the skin curves at different locations on the human body. The limiting component can limit the ablation needle, restricting its movable direction and significantly reducing the difficulty of maintaining stability after puncture. Attached Figure Description

[0030] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a schematic diagram illustrating the use of the ablation needle positioning bracket according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the ablation needle positioning bracket in the state of the ablation needle being released, according to an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the ablation needle positioning bracket structure according to an embodiment of this application;

[0034] Figure 4 This is an exploded view of the ablation needle positioning stent structure according to an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the support leg adjustment method of the ablation needle positioning bracket according to an embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the adjustment method of the adsorption component of the ablation needle positioning bracket according to an embodiment of this application;

[0037] Figure 7 This is a schematic diagram illustrating the usage effect of the ablation needle positioning bracket according to an embodiment of this application;

[0038] Figure 8 This is a schematic diagram illustrating the operation steps of using the ablation needle positioning bracket according to an embodiment of this application.

[0039] The attached figures are labeled as follows:

[0040] 1. Support frame body;

[0041] 11. First rotating arm; 12. Second rotating arm; 13. Mounting hole; 111. Rotating shaft;

[0042] 121. Shaft hole;

[0043] 2. Limiting components;

[0044] 21. First limiting component; 22. Second limiting component; 211. First buckle;

[0045] 221. Second buckle;

[0046] 4. Support leg assembly;

[0047] 41. Support leg; 410. Rod body; 411. Adjustment component; 412. Adsorption component;

[0048] 4101, Universal ball; 4120, Adsorption component body; 4121, Sleeve;

[0049] 5. Limit block;

[0050] 100. Ablation needle. Detailed Implementation

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0052] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In the accompanying drawings, for clarity, the length, area, volume, gap dimensions, and relative dimensions of components, as well as the included angles and relative positional relationships between components, may be exaggerated. The same reference numerals denote the same elements throughout the drawings.

[0055] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0056] This embodiment provides an ablation needle positioning bracket, such as Figure 1 As shown, it includes: a support body 1, a limiting component 2, and a support leg component 4.

[0057] The limiting component 2 is fixed to the support body 1 and is used to restrict the movement of the ablation needle 100 along a preset direction. For example, based on the Cartesian coordinate system, assuming that the axis of the ablation needle 100 is the Z-axis, the limiting component 2 can restrict the movement of the ablation needle 100 along the X-axis and Y-axis, or the limiting component 2 can be designed to restrict the movement of the ablation needle 100 along the X-axis, Y-axis and Z-axis.

[0058] like Figure 2 , Figure 3 As shown, the support leg assembly 4 includes a plurality of support legs 41 mounted on the bracket body 1, at least some of the support legs 41 being movably connected to the bracket body 1 so as to be able to adjust their relative position and / or angle with the bracket body 1.

[0059] like Figure 7 As shown, the ablation needle positioning bracket of this embodiment provides support to the human body surface through its bracket body 1. At least some of the support legs 41 are movably connected to the bracket body 1, enabling adaptation to the skin curves at different locations on the human body. The limiting component 2 can limit the ablation needle 100, restricting the movable direction of the ablation needle 100 and significantly reducing the difficulty of maintaining stability after the ablation needle 100 is punctured.

[0060] In an alternative embodiment, such as Figure 2 , Figure 3As shown, the support body 1 includes a first rotating arm 11 and a second rotating arm 12, which are hinged together. The limiting assembly 2 includes a first limiting member 21 and a second limiting member 22, which are fixed to one side of the first rotating arm 11 and the second limiting member 22 are fixed to one side of the second rotating arm 12.

[0061] At least a portion of the support leg 41 is movably connected to the first rotating arm 11 and / or the second rotating arm 12 to adjust its relative position and / or angle with the first rotating arm 11 or the second rotating arm 12; the first rotating arm 11 and the second rotating arm 12 can switch between at least a first included angle and a second included angle through relative rotation.

[0062] When the first included angle is reached, such as Figure 1 As shown, the first limiting member 21 and the second limiting member 22 can restrict the movement of the ablation needle 100 along a preset direction; when the second included angle is reached, as Figure 2 As shown, the first limiting member 21 and the second limiting member 22 can release the ablation needle 100.

[0063] In this embodiment, by designing the main body 1 of the support as a movable first rotating arm 11 and second rotating arm 12, and designing the limiting component 2 as a detachable first limiting member 21 and second limiting member 22, the relative rotation of the first rotating arm 11 and the second rotating arm 12 enables the quick clamping or loosening of the ablation needle 100, significantly improving the operational convenience of the ablation needle positioning support.

[0064] In an alternative embodiment, such as Figure 1 , Figure 2 As shown, when the first rotating arm 11 and the second rotating arm 12 reach the first included angle, the first limiting member 21 and the second limiting member 22 are assembled into a complete hollow cylinder. The inner wall of the hollow cylinder is used to restrict the movement of the ablation needle 100. It can be understood that the ablation needle 100 is generally a slender cylinder. The inner wall of the hollow cylinder can abut against the outer wall of the ablation needle 100 to restrict its movement. Alternatively, when the inner wall of the hollow cylinder is designed to compress the outer wall of the ablation needle 100, the inner wall of the hollow cylinder can provide friction to restrict the axial movement of the ablation needle 100.

[0065] Understandably, the inner wall profile of the hollow cylinder can be designed as the circumcircle or circumcircle polygon of the ablation needle 100 cross section to provide a uniform clamping force on the ablation needle 100.

[0066] In an optional embodiment, at least a portion of the support leg 41 is threadedly connected to the first rotating arm 11 and / or the second rotating arm 12, or is movably connected with damping. In this embodiment, the threaded or damped movable connection of the support leg 41 facilitates adjustment. When the support leg 41 is threadedly connected, adjustment is generally achieved by rotating the support leg 41, causing it to move axially under threaded guidance. When the support leg 41 is damped and movably connected, an external force exceeding the static friction is applied to the support leg 41 to force it to move; after the external force is removed, the support leg 41 remains stationary.

[0067] like Figure 5 As shown, adjusting each support leg 41 along the adjustment direction can bring each support leg 41 to a suitable position, ultimately achieving the desired result. Figure 7 The state of the body surface shown. The number of support legs 41 is at least 1, preferably 3, and may be more than 4; the number of support legs 41 that are threadedly connected or dampedly movable to the bracket body 1 is at least 1, preferably 2 or 3, and may be more than 4.

[0068] It should be noted that the damped movable connection described in this embodiment refers to the support leg 41 being connected to the first rotating arm 11 or the second rotating arm 12, and under normal conditions (when no external force is applied by the operator), there is damping between the support leg 41 and the first rotating arm 11 or the second rotating arm 12, therefore no relative movement with the first rotating arm 11 or the second rotating arm 12 occurs. Only when the external force applied by the operator is greater than this damping can the support leg 41 produce relative movement with the first rotating arm 11 or the second rotating arm 12.

[0069] In an alternative embodiment, such as Figure 3 , Figure 4 As shown, the support leg 41 includes a rod 410 and an adjusting component 411. The rod 410 is threadedly connected to the first rotating arm 11 or the second rotating arm 12 or is movably connected with damping; the adjusting component 411 is connected to the rod 410 and is used to apply external force to drive the rod 410 to move.

[0070] In this embodiment, the rod 410 is a component directly connected to the first rotating arm 11 or the second rotating arm 12, and the adjusting component 411 facilitates operation. For example, when the rod 410 is threadedly connected to the first rotating arm 11 or the second rotating arm 12, the adjusting component 411 can increase the lever arm, making operation easier; when the rod 410 is movably connected to the first rotating arm 11 or the second rotating arm 12 with damping, the adjusting component 411 can increase the contact area, making it easier for the operator to apply force.

[0071] In an alternative embodiment, such as Figure 4As shown, the adjusting component 411 is disc-shaped, and the end of the rod 410 is fixed to the center of the adjusting component 411. In this embodiment, the adjusting component 411 is designed in a disc shape, which allows for easy rotation by hand, making thread adjustment more convenient. Optionally, the adjusting component 411 has an anti-slip texture on its circumference to increase friction.

[0072] In an alternative embodiment, such as Figure 4 , Figure 6 As shown, the support leg 41 also includes an adsorption element 412, which is connected to one end of the rod body 410 and is used to adhere to human skin. In this embodiment, the adsorption force of the adsorption element 412 can enable either support leg 41 to adhere to the skin, providing strong support and preventing the support body 1 from wobbling due to insufficient support for the ablation needle 100. The adsorption element 412 mentioned in this embodiment refers to an object that can adhere to the surface of the human body, such as a suction cup or an adhesive patch.

[0073] In an alternative embodiment, such as Figure 4 As shown, one end of the rod 410 has a universal ball 4101, and the adsorption component 412 includes an adsorption component body 4120 and a sleeve 4121. The sleeve 4121 is fitted onto the universal ball 4101, and the adsorption component body 4120 is fixed to the sleeve 4121; as Figure 6 As shown, by rotating the sleeve 4121, the relative angle between the adsorption body 4120 and the rod 410 can be changed. In this embodiment, the cooperation between the universal ball 4101 and the adsorption member 412 facilitates the attachment of the support leg 41 to different parts of the human body. It is understood that when the sleeve 4121 is fitted onto the universal ball 4101, it has the freedom of rotation, but it should not detach from the universal ball 4101. For example, the sleeve 4121 has a certain degree of elasticity so that there is sufficient friction with the surface of the universal ball 4101 to prevent it from easily detaching.

[0074] In an alternative embodiment, such as Figure 4 As shown, one or both ends of the first rotating arm 11 and one or both ends of the second rotating arm 12 have mounting holes 13; support legs 41 are installed in the mounting holes 13, and the support legs 41 are threaded into the mounting holes 13 or connected to them with damping. In this embodiment, by providing mounting holes 13 at one or both ends of the first rotating arm 11 and one or both ends of the second rotating arm 12, the support points can be evenly distributed, improving the overall support balance of the bracket body 1. Preferably, a mounting hole 13 is provided at the hinged end of the first rotating arm 11 and the second rotating arm 12, and a mounting hole 13 is provided at the ends of the first rotating arm 11 and the second rotating arm 12 that are far apart from each other. This arrangement allows for the installation of three support legs 41, and the lines connecting the support legs 41 form a triangle. The limiting component 2 is located within the projection range of the triangle, achieving three-point distributed support with strong stability.

[0075] In an alternative embodiment, such as Figure 4 As shown, one end of the first rotating arm 11 has a rotating shaft 111, and one end of the second rotating arm 12 has a shaft hole 121, with the rotating shaft 111 installed in the shaft hole 121. The ablation needle positioning bracket also includes a limiting block 5, which is used to prevent the rotating shaft 111 from disengaging from the shaft hole 121. In this embodiment, by designing a rotating shaft 111 at one end of the first rotating arm 11 and a shaft hole 121 at one end of the second rotating arm 12, it is possible to easily achieve a relatively rotatable connection between the first rotating arm 11 and the second rotating arm 12. The limiting block 5 ensures a stable connection between the first rotating arm 11 and the second rotating arm 12.

[0076] In an alternative embodiment, such as Figure 3 As shown, the first limiting member 21 has a first buckle 211, and the second limiting member 22 has a second buckle 221. When the first rotating arm 11 and the second rotating arm 12 reach a first included angle, the second buckle 221 can engage and fix with the first buckle 211. In this embodiment, the design of the first buckle 211 and the second buckle 221 being able to engage and fix each other facilitates the first rotating arm 11 and the second rotating arm 12 maintaining their angle after rotating into position, ensuring that the limiting component 2 stably limits the ablation needle 100.

[0077] It is understood that the locking and fixing described in this embodiment means that the device remains fixed when the operator does not actively apply external force. When the operator actively applies external force, the first buckle 211 and the second buckle 221 in this embodiment should also be able to separate so that the limiting component 2 can release the ablation needle 100.

[0078] This embodiment provides a method for fixing the ablation needle 100 using the ablation needle positioning bracket, such as... Figure 8 As shown, it includes the following steps:

[0079] S1, Use an ablation needle to puncture the skin at the lesion site of the patient;

[0080] S2, place the ablation needle positioning bracket provided in this embodiment on one side of the ablation needle 100, so that the ablation needle 100 is located between the first limiting member 21 and the second limiting member 22, and arrange the bottom of the support leg 41 as close to the skin as possible;

[0081] S3, rotate the first rotating arm 11 or the second rotating arm 12 to clamp the ablation needle 100 with the first limiting member 21 and the second limiting member 22 to complete the clamping;

[0082] S4. Adjust the position of the support leg 41 according to the curve of the patient's skin, and adjust the angle of the adsorption component 412 so that the adsorption component 412 is adsorbed on the patient's skin.

[0083] Through the above steps, the ablation needle 100 is positioned. After 3 to 8 minutes, the operation is completed. The first rotating arm 11 or the second rotating arm 12 can be rotated to release the ablation needle 100 from the first limiting member 21 and the second limiting member 22. The ablation needle positioning bracket in this embodiment can be removed.

[0084] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An ablation needle positioning bracket, characterized in that, include: Support body (1); A limiting component (2) is fixed to the support body (1), and the limiting component (2) is used to restrict the movement of the ablation needle in a preset direction; The support leg assembly (4) includes a plurality of support legs (41) mounted on the bracket body (1), at least a portion of the support legs (41) being movably connected to the bracket body (1) to be able to adjust their relative position and / or angle with respect to the bracket body (1); The main body of the support (1) includes a first rotating arm (11) and a second rotating arm (12), wherein the first rotating arm (11) and the second rotating arm (12) are hinged together; At least a portion of the support leg (41) is movably connected to the first rotating arm (11) and / or the second rotating arm (12) to be able to adjust its relative position and / or angle with the first rotating arm (11) or the second rotating arm (12); The limiting component (2) includes a first limiting member (21) and a second limiting member (22). The first limiting member (21) is fixed to one side of the first rotating arm (11), and the second limiting member (22) is fixed to one side of the second rotating arm (12). The first rotating arm (11) and the second rotating arm (12) can switch between at least a first included angle and a second included angle through relative rotation; When the first included angle is reached, the first limiting member (21) and the second limiting member (22) can restrict the movement of the ablation needle in a preset direction; When the second included angle is reached, the first limiting member (21) and the second limiting member (22) can release the ablation needle.

2. The ablation needle positioning bracket according to claim 1, characterized in that, The supporting leg (41) includes: The rod (410) is movably connected to the main body (1) of the support; An adsorption element (412) is connected to one end of the rod (410) and is used to adsorb onto human skin.

3. The ablation needle positioning bracket according to claim 2, characterized in that, One end of the rod (410) has a universal ball (4101), and the adsorption element (412) includes an adsorption element body (4120) and a sleeve (4121), with the sleeve (4121) fitted onto the universal ball (4101); by rotating the sleeve (4121), the relative angle between the adsorption element body (4120) and the rod (410) can be changed.

4. The ablation needle positioning bracket according to claim 3, characterized in that, The supporting leg (41) includes: An adjusting component (411) is connected to the rod (410) and is used to apply external force to drive the rod (410) to move.

5. The ablation needle positioning bracket according to claim 1, characterized in that, At least part of the support leg (41) is threaded or dampedly connected to the first rotating arm (11) and / or the second rotating arm (12).

6. The ablation needle positioning bracket according to any one of claims 1-5, characterized in that, The support leg (41) is installed at one or both ends of the first rotating arm (11) and one or both ends of the second rotating arm (12), and the line connecting the support legs (41) forms a triangle, and the limiting component (2) is located within the projection range of the triangle.

7. The ablation needle positioning bracket according to any one of claims 1-5, characterized in that, The first rotating arm (11) has a rotating shaft (111) at one end, and the second rotating arm (12) has a shaft hole (121) at one end, and the rotating shaft (111) is installed in the shaft hole (121). The ablation needle positioning bracket also includes a limiting block (5), which is used to restrict the rotating shaft (111) from disengaging from the shaft hole (121).

8. The ablation needle positioning bracket according to any one of claims 1-5, characterized in that, The first limiting member (21) has a first buckle (211), and the second limiting member (22) has a second buckle (221). When the first rotating arm (11) and the second rotating arm (12) reach the first included angle, the second buckle (221) can engage and fix with the first buckle (211).

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