Puncture stabilizing support for radiofrequency ablation

Abstract

The utility model discloses a puncture stabilizing support for radiofrequency ablation. The puncture stabilizing support comprises a disc base, a guide rod and a protractor. One end of the guide rod is universally connected to the circle center of the disc base, the other end of the guide rod is supported by the protractor, one end of the protractor circumferentially slides around the circle center on the upper surface of the disc base, and the guide rod is clamped on the protractor and slides along the protractor; according to the utility model, on the basis of the disc base, a 360-degree range on a horizontal plane is covered, and the needle inserting direction on the horizontal plane can be determined through circumferential sliding of the protractor regardless of the determined needle inserting direction; on the basis, the arc-shaped ruler of the protractor is used as a positioning basis in a vertical plane of the guide rod; according to the device, the needle inserting angle is adjusted from the two dimensions of the horizontal plane and the vertical plane, all needle inserting routes are basically covered, any falling line guiding of the puncture needle can be achieved, and compared with a traditional supporting and stabilizing device, a surgeon can keep the needle inserting angle for a long time, and the one-time puncture success rate is increased.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a puncture stabilization stent for radiofrequency ablation. Background Technology

[0002] Radiofrequency ablation is a minimally invasive in situ tumor treatment technique. Currently, radiofrequency ablation can be applied to various solid tumors, including thyroid cancer, lymphoma, liver cancer, lung cancer, kidney cancer, breast cancer, and bone tumors. Among them, radiofrequency ablation has been used to treat primary liver cancer for ten years and has been widely used in the clinical treatment and research of liver tumors, becoming a relatively mature technique in the clinical treatment of liver cancer.

[0003] Radiofrequency ablation typically involves inserting an electrode needle directly into the tumor. Radiofrequency energy generates high temperatures and dries the local tissue, ultimately coagulating and inactivating the soft tissue and tumor. During the procedure, the surgeon usually holds the electrode needle for more than half an hour to ensure it is accurately positioned within the tumor.

[0004] However, to accurately insert the electrode needle into the tumor site, it is necessary to accurately calibrate the direction, angle and depth of the needle insertion. Although traditional surgical procedures use methods such as ultrasound guidance to determine the needle insertion position and angle, the key is how to maintain this angle and direction for a long time, which has become a major challenge to be overcome in radiofrequency ablation.

[0005] In clinical practice, without additional auxiliary instruments, the puncture needle must be stabilized entirely by the operator. This process not only places a significant burden on the surgeon but also, due to the instability of the manual grip, results in inconsistent puncture accuracy, often requiring a second puncture and causing unnecessary harm to the patient. To overcome these problems, existing technologies, such as the Chinese patent with publication number CN215079681U, disclose an adjustable support for a radiofrequency ablation needle. This adjustable support consists of three support legs, but it only serves a supporting function and cannot actually adjust or fix the needle insertion angle. While this alleviates the surgeon's burden to some extent, the inability to fix the needle insertion angle still results in the possibility of incorrect puncture direction.

[0006] Therefore, there is a need for a puncture stabilizing bracket that provides sufficient support while also allowing for adjustment and fixing of the needle insertion angle. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model designs a puncture stabilizing bracket for radiofrequency ablation, which uses a universal connection to fix the guide cylinder, while the other end of the guide cylinder is fixed with an arc adjustment ruler to achieve the function of adjusting the angle and supporting puncture.

[0008] To achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution: a puncture stabilizing bracket for radiofrequency ablation, comprising: a disc base, a guide rod, and a protractor;

[0009] One end of the guide rod is universally connected to the center of the disc base, and the other end is supported by a protractor. One end of the protractor slides around the center circumference on the upper surface of the disc base, and the guide rod is engaged with the protractor and slides along the protractor.

[0010] Furthermore, the protractor includes an arc-shaped ruler and a base block. The arc-shaped ruler is fixedly connected to the base block, and a guide rod is slidably connected to its head end. The side plane of the arc-shaped ruler and the top plane of the base block are perpendicular to each other. The circular base is provided with an annular groove, and the base block is engaged in the groove.

[0011] Furthermore, the base block is fixed with a triangular mark along the radial direction of the disc base, and the upper surface of the disc base is provided with a scale;

[0012] Furthermore, the slide has a "T" shaped cross-section, the bottom block has an "I" shaped cross-section, and a locking knob is provided on the bottom block;

[0013] Furthermore, an arc-shaped snap-fit ​​component is fixedly provided on one side of the guide rod to fit an arc-shaped ruler. The snap-fit ​​component has a locking knob on its outer side and a hollowed-out portion.

[0014] Furthermore, the outer side of the arc-shaped ruler is provided with graduations, and the hollow part of the snap-fit ​​component is provided with a triangular mark facing inward;

[0015] Furthermore, one end of the guide rod is provided with a ball, and the other end is provided with a supporting cylinder. The guide rod is universally connected to the disc base through the ball.

[0016] Furthermore, a malleable support piece is fixedly provided at the bottom of the disc base;

[0017] The beneficial effects of this utility model are:

[0018] This invention uses a circular base as its foundation, covering a 360-degree range on a horizontal plane. The protractor can rotate 360 ​​degrees within this plane. Regardless of the determined needle insertion direction, the needle insertion direction on the horizontal plane can be determined by sliding the protractor around its circumference, provided the insertion point is known. Based on this, the arc-shaped ruler of the protractor is positioned on the vertical plane of the guide rod. Thus, this device can adjust the needle insertion angle from both horizontal and vertical dimensions, essentially covering all needle insertion routes. With the cooperation of the scale and locking knob, it can guide the needle to any desired insertion path. Compared to traditional support and stabilization devices, this helps the surgeon maintain the needle insertion angle for extended periods, improving the success rate of a single puncture. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of a puncture stabilization stent for radiofrequency ablation.

[0021] Figure 2 This is a side view of a puncture stabilization stent for radiofrequency ablation;

[0022] Figure 3 This is another side view of a puncture stabilization stent for radiofrequency ablation;

[0023] Figure 4 It is attached Figure 1 A magnified view of part 5 in the middle section.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Disc base, 11-Slide groove, 12-Support piece, 2-Guide rod, 21-Sphere, 22-Bearing cylinder, 23-Snap-fit ​​piece, 24-Locking knob, 25-Triangle mark, 3-Scale, 4-Protractor, 41-Arc ruler, 42-Base block. Detailed Implementation

[0026] This utility model discloses a puncture stabilizing support for radiofrequency ablation, comprising: a disc base 1, a guide rod 2, and a protractor 4; one end of the guide rod 2 is universally connected to the center of the disc base 1, and the other end is supported by the protractor 4; one end of the protractor 4 slides around the center circumference on the upper surface of the disc base 1 to determine the guide line on the horizontal plane; the guide rod 2 is engaged with the protractor 4 and slides along the protractor 4 to determine the guide direction in the vertical plane; through the components of this device, the directions of the two planes are merged to determine any needle insertion path above the horizontal plane.

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention; obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example 1

[0029] See Figures 1 to 4 As shown, this embodiment provides a preferred implementation of a protractor 4 for determining the insertion path of a puncture needle;

[0030] In this embodiment, the protractor 4 includes an arc-shaped ruler 41 and a base block 42. The arc-shaped ruler 41 is fixedly connected to the base block 42, and the head end is slidably connected to the guide rod 2 to ensure that the guide rod 2 can rotate in the vertical plane to find its needle insertion angle. The side plane of the arc-shaped ruler 41 and the upper plane of the base block 42 are perpendicular to each other to ensure the accurate fusion of the angles of the two planes. The disc base 1 is provided with an annular groove 11, and the base block 42 is engaged in the groove 11.

[0031] Specifically, the slide 11 has a "T" shaped cross section and the bottom block 42 has an "I" shaped cross section. Their interlocking ensures that they will not slide in the direction perpendicular to the plane of the disc base 1. A locking knob 24 is provided on the bottom block 42, which can lock the bottom block 42 to prevent it from sliding arbitrarily.

[0032] Of course, this application aims to solve the angle positioning problem. In this embodiment, the base block 42 is fixedly provided with a triangular mark 25 along the radial direction of the disc base 1, and the upper surface of the disc base 1 is provided with a scale 3. The scale 3 is specified by the triangular mark 25 to read the angle it has turned, which is convenient for doctors to refer to the positioning.

[0033] Based on the above, this embodiment provides a preferred fit between the guide rod 2 and the protractor 4;

[0034] Specifically, in this embodiment, an arc-shaped snap-fit ​​component 23 is fixedly provided on one side of the guide rod 2, which is fitted with an arc-shaped ruler 41. The snap-fit ​​component 23 has a locking knob 24 on its outer side and a hollowed-out portion. The arc-shaped ruler 41 has a scale 3 on its outer side. The hollowed-out portion of the snap-fit ​​component 23 has a triangular mark 25 facing inward. The guide rod 2 rotates in the vertical plane with the universal joint point as the origin. Its rotation trajectory is an arc, which matches the arc shape of the arc-shaped ruler 41. The triangular mark 25 specifies the angle through which the guide rod 2 rotates in the vertical plane by the scale 3 on the arc-shaped ruler 41.

[0035] Therefore, in this embodiment, the insertion angle of the puncture needle is obtained by combining the insertion angle in the horizontal plane and the insertion angle in the vertical plane.

[0036] Example 2

[0037] Based on the above embodiment 1, in this embodiment, one end of the guide rod 2 is provided with a ball 21, which is universally connected to the disc base 1 as the basis for universal connection; the other end is provided with a bearing cylinder 22, which provides physical support for the puncture needle and reduces the hand burden of the operating doctor.

[0038] Example 3

[0039] Based on the above, in order to ensure that the device can be stably placed on the patient's body surface, in this embodiment, a malleable support plate 12 is fixedly provided at the bottom of the disc base 1. When in use, the bearing plane is found and the support plate 12 is manually molded to support the entire device; on the one hand, it plays a role in stabilizing support, and on the other hand, it supports the disc base 1, so that the end of the guide rod 2 has enough room for movement.

[0040] In summary, this invention uses a circular base as its foundation, covering a 360-degree range on a horizontal plane. This means the protractor can rotate 360 ​​degrees within this plane. Regardless of the determined needle insertion direction, the needle insertion direction on the horizontal plane can be determined by sliding the protractor around its circumference, provided the needle insertion point is known. Based on this, the arc-shaped ruler of the protractor is positioned on the vertical plane of the guide rod. Thus, this device can adjust the needle insertion angle from both horizontal and vertical dimensions, essentially covering all needle insertion routes. With the cooperation of the scale and locking knob, it can guide the needle to any desired insertion point. Compared to traditional support and stabilization devices, this helps the surgeon maintain the needle insertion angle for extended periods, improving the success rate of a single puncture.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described.

Claims

1. A puncture-stabilized stent for radiofrequency ablation, characterized in that, include: Circular base, guide rod, protractor; One end of the guide rod is universally connected to the center of the disc base, and the other end is supported by a protractor. One end of the protractor slides around the center circumference on the upper surface of the disc base, and the guide rod is engaged with the protractor and slides along the protractor.

2. The puncture stabilization stent for radiofrequency ablation according to claim 1, characterized in that, The protractor includes an arc-shaped ruler and a base block. The arc-shaped ruler is fixedly connected to the base block, and a guide rod is slidably connected to its head end. The side plane of the arc-shaped ruler and the top plane of the base block are perpendicular to each other. The circular base is provided with an annular groove, and the base block is engaged in the groove.

3. The puncture stabilization stent for radiofrequency ablation according to claim 2, characterized in that, The base block is fixed with a triangular mark along the radial direction of the disc base, and the upper surface of the disc base is marked with a scale.

4. The puncture stabilization stent for radiofrequency ablation according to claim 2, characterized in that, The slide has a "T" shaped cross section and the bottom block has an "I" shaped cross section. The bottom block is equipped with a locking knob.

5. The puncture stabilization stent for radiofrequency ablation according to claim 2, characterized in that, An arc-shaped snap-fit ​​component is fixedly provided on one side of the guide rod, which is fitted with an arc-shaped ruler. The snap-fit ​​component has a locking knob on its outer side and a hollowed-out part.

6. The puncture stabilization stent for radiofrequency ablation according to claim 5, characterized in that, The outer side of the arc-shaped ruler has graduations, and the hollow part of the snap-fit ​​component has a triangular mark facing inward.

7. The puncture stabilization stent for radiofrequency ablation according to claim 5, characterized in that, One end of the guide rod has a ball, and the other end has a supporting cylinder. The guide rod is universally connected to the disc base through the ball.

8. The puncture stabilization stent for radiofrequency ablation according to claim 1, characterized in that, The bottom of the disc base is fixed with a shape-adjustable support plate.

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