Tumor edge accurate measuring and marking instrument for breast conserving surgery of breast cancer

Abstract

The utility model discloses a tumor edge accurate measuring and marking instrument for breast cancer breast conserving surgery, which belongs to the technical field of medical instruments and comprises a positioning component for positioning the center of a tumor, a circular protractor for indicating the direction of the outer edge of the tumor and a scale for measuring the distance between a marking point and the center of the tumor. The circular protractor is horizontally arranged and fixedly arranged on the positioning component in a sleeving mode, one end of the ruler is rotatably arranged on the positioning component in a sleeving mode, the length direction of the ruler is located in the radial direction of the circular protractor, and the marking piece is connected to the ruler in a sliding mode through a sliding mechanism. And the moving direction of the marking piece is the length direction of the scale. The tumor resection device can be suitable for accurately positioning the edge of a tumor, so that the tumor can be accurately resected, the resection range is not too small to cause tumor residue, and the normal tissue is not excessively resected due to the too large resection range.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of medical devices, and specifically is a tumor edge precision measurement and marking device for breast-conserving surgery for breast cancer. Background Art

[0002] Traditionally, breast-conserving surgery involves resectioning a certain distance beyond the tumor's edge, which serves as the standard resection margin, while also undergoing pathological examination. However, when the cancer is small or too deep to be reached, medical staff will use intraoperative ultrasound to re-measure and estimate the resection margin. During the procedure, they will use a marker to roughly mark the resection margin, but this lacks accuracy, and the outcome depends on the surgeon's experience.

[0003] In the prior art, patent publication CN 218128783 U discloses an auxiliary marking device and surgical instrument for breast-conserving surgery. This marking device utilizes a ruler with a connecting sleeve mounted on a positioning wire, and a caliper with a marking pen mounted on the ruler. The caliper can slide freely along the ruler and then be fixed at a predetermined position by a measuring unit. During breast-conserving surgery, after the tumor's center is determined using the positioning wire, the caliper's position is adjusted, and the connecting sleeve on the ruler is driven to rotate along the positioning wire, allowing the marking pen to accurately mark the resection margin, thereby ensuring the effectiveness of the surgery. However, this device has the following problems: the resulting mark is a highly circular shape, while the tumor's outer contour is not always a regular circle. This results in the resection margin marker contour not being highly aligned with the tumor's outer contour, resulting in inaccurate surgical margins. This can lead to problems such as the resection area being too small, resulting in residual tumor, or the resection area being too large, resulting in excessive removal of normal tissue. Utility Model Content

[0004] The technical solution of the present utility model addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides a tumor margin precision measurement and marking instrument for breast-conserving surgery for breast cancer, which is used to solve the technical problem raised in the above background technology that the margin marking contour of the existing tumor margin measurement and marking device cannot be highly matched with the tumor outer contour.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] An instrument for accurately measuring and marking tumor margins for breast-conserving surgery for breast cancer, comprising:

[0007] A positioning component, used for locating the center of the tumor;

[0008] A circular protractor, used to indicate the position of the outer edge of the tumor, is horizontally arranged and fixedly mounted on the positioning member;

[0009] A ruler, used to measure the distance between the marked point and the center of the tumor, one end of which is rotatably mounted on the positioning member, and the length direction of the ruler is located in the radial direction of the circular protractor;

[0010] The marking piece is used to mark the human body and is slidably connected to the ruler through a sliding mechanism, and the moving direction of the marking piece is the length direction of the ruler.

[0011] Furthermore, the positioning member is a positioning wire.

[0012] Preferably, the upper end surface of the circular protractor is marked with an angle scale, the ruler is located above the circular protractor, and the bottom of the ruler is attached to the upper end surface of the circular protractor.

[0013] Preferably, the marking piece is a syringe, and medical methylene blue dye is sucked into the syringe.

[0014] As an implementation of the above solution, the sliding mechanism includes a sliding groove provided on the ruler and a slider slidably connected to the sliding groove, and the slider is fixedly connected to the marking piece.

[0015] As another implementation of the above solution, the sliding mechanism includes a moving ring mounted on the ruler, and the marking member is fixedly connected to the moving ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model can mark five marking points located at the outermost side of the surgical resection edge according to the outer contour of the tumor through positioning wire, circular protractor, ruler and syringe, and then connect the five marking points with a marking pen. The final resection edge mark is not necessarily a regular circle, and it can be changed according to the outer contour of the tumor. The utility model can adapt to the precise positioning of the tumor edge, so that the tumor can be accurately removed without removing too small a range of tumor residue or removing too large a range of normal tissue.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the structure of the utility model in embodiment 1;

[0020] Figure 2 This is a top view of the structure of the utility model in Example 1;

[0021] Figure 3 This is a front view of the structure of the second embodiment of the present invention;

[0022] Figure 4This is a top view of the structure of the utility model in Example 2

[0023] Reference numerals: 1. positioning wire; 2. circular protractor; 3. ruler; 4. syringe; 5. sliding mechanism; 51. slide groove; 52. slider; 53. moving ring. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] Example 1: Please refer to the attached Figure 1 -Attached Figure 2 A precise measurement and marking instrument for tumor margins used in breast-conserving surgery for breast cancer comprises a positioning wire 1, a circular protractor 2, a ruler 3 and a syringe 4. The positioning wire 1 is used to locate the center of the tumor. The circular protractor 2 is horizontally arranged and fixedly sleeved on the positioning wire 1. One end of the ruler 3 is rotatably sleeved on the positioning wire 1. The syringe 4 is connected to the ruler 3 through a sliding mechanism 5. The syringe 4 can move along the length direction of the ruler 3. Medical methylene blue dye is inhaled into the syringe 4.

[0026] In this embodiment, the upper end surface of the circular protractor 2 is marked with angle scales, the scale 3 is located above the circular protractor 2 , and the bottom of the scale 3 is attached to the circular protractor 2 .

[0027] In this embodiment, the sliding mechanism 5 includes a sliding groove 51 provided on the ruler 3 and a slider 52 slidably connected to the sliding groove 51 , and the slider 52 is fixedly connected to the marking piece.

[0028] During application, find the five outermost points of the tumor outline, expand them outward to a certain size to form the target marking points, take the center of the tumor as the center of the circle and mark a line with a radial direction of 0° (that is, the 0° scale line of the circular protractor 2), and the zero scale line of the ruler 3 is located at the location of the positioning wire 1; determine the angle α of the radial line where the target marking point is located relative to the 0° marking line and the distance L between the target marking point and the center of the tumor, and then use this measurement and marking device. After positioning the positioning wire 1 at the center of the tumor, control the rotation angle of the ruler 3 relative to the circular protractor 2 to be α, and control the syringe 4 to move to the scale L of the ruler 3 so that the syringe 4 is located at the target marking point, and then inject medical methylene blue dye into the human body through the syringe 4, completing a marking operation. Repeat the marking process until the five marking points are marked, and then use a marking pen to connect the five marking points to form a closed loop, completing the tumor resection margin measurement marking for breast-conserving surgery for breast cancer.

[0029] Example 2: This example differs from Example 1 in that:

[0030] In this embodiment, please refer to the attached Figure 3 -Attached Figure 4 The upper end surface of the circular protractor 2 is marked with an angle scale, the ruler 3 is located below the circular protractor 2, and the top of the ruler 3 is attached to the bottom surface of the circular protractor 2.

[0031] In this embodiment, please refer to the attached Figure 3 -Attached Figure 4 The sliding mechanism 5 includes a moving ring 53 mounted on the ruler 3 , and the marking piece is fixedly connected to the moving ring 53 .

[0032] Other aspects are the same as those of the first embodiment.

[0033] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A device for accurately measuring and marking tumor margins for breast-conserving surgery, characterized by: include: A positioning component, used for locating the center of the tumor; A circular protractor (2), used to indicate the position of the outer edge of the tumor, is horizontally arranged and fixedly mounted on the positioning member; A ruler (3) is used to measure the distance between the marked point and the center of the tumor, one end of which is rotatably mounted on the positioning member, and the length direction of the ruler (3) is located in the radial direction of the circular protractor (2); The marking piece is used for marking on the human body and is slidably connected to the ruler (3) via a sliding mechanism (5), and the moving direction of the marking piece is the length direction of the ruler (3).

2. The device for accurately measuring and marking tumor margins for breast-conserving surgery according to claim 1, characterized in that: The positioning component is a positioning steel wire (1).

3. The tumor margin precision measurement and marking instrument for breast-conserving surgery for breast cancer according to claim 1, characterized in that: The upper end surface of the circular protractor (2) is marked with an angle scale, the ruler (3) is located above the circular protractor (2), and the bottom of the ruler (3) is attached to the upper end surface of the circular protractor (2).

4. The tumor margin precision measurement and marking instrument for breast-conserving surgery for breast cancer according to claim 1, characterized in that: The marking piece is a syringe (4), and medical methylene blue dye is sucked into the syringe (4).

5. The tumor margin precision measurement and marking instrument for breast-conserving surgery for breast cancer according to claim 1, characterized in that: The sliding mechanism (5) comprises a sliding groove (51) provided on the scale (3) and a sliding block (52) slidably connected to the sliding groove (51), wherein the sliding block (52) is fixedly connected to the marking piece.

6. The tumor margin precision measurement and marking instrument for breast-conserving surgery for breast cancer according to claim 1, characterized in that: The sliding mechanism (5) comprises a moving ring (53) sleeved on the ruler (3), and the marking piece is fixedly connected to the moving ring (53).

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