Titanium clamp assembly capable of being repositioned

By using relocalized titanium clip assembly in head and neck tumor resection, the problem of surgeons' difficulty in accurately relocating the positive margin is solved, and recurrence-free survival is improved.

CN222426252UActive Publication Date: 2025-02-07HOSPITAL OF STOMATOLOGY CHINA MEDICAL UNIV
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Patent Information

Application Number
CN202421387733.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-02-07
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

After head and neck tumor resection, it is difficult for surgeons to accurately relocate the positive margin, resulting in a low recurrence-free survival rate in patients with negative margins after supplemental resection.

Method used

Design a relocatable titanium clip assembly to locate both sides of the incision edge when the tumor is removed and take a pathological sample at the edge of the titanium clip. If the sample is positive, use the pairing mark of the titanium clip to find the corresponding titanium clip. Position the positive edge in the defect area for enlargement and resection.

Benefits of technology

By using relocalizable titanium clip assembly, the recurrence-free survival rate in patients with negative margins after supplemental resection was significantly improved.

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Abstract

The utility model relates to the technical field of medical instruments, in particular to a titanium clip assembly capable of being repositioned, which comprises two single titanium clips provided with pairing marks, each single titanium clip consists of a clamping part, a clamping arm and a marking part, the clamping part is U-shaped or V-shaped, the two clamping arms are respectively connected to two end parts of the clamping part, and the marking part is arranged on the clamping arm. The marking part is fixedly arranged at the end, away from the clamping arm, of the outer side of the clamping part, and a pairing mark is arranged on the marking part. The titanium clamp assembly capable of being repositioned is used for positioning the two sides of an incision edge when a tumor is cut off, the titanium clamp assembly capable of being repositioned is used for positioning the two sides, pathology is taken at the edge of the titanium clamp after the tumor is cut off, if the pathology is positive, the corresponding titanium clamp on the tumor bed side can be found, the positive incision edge is repositioned in a defect area, and expanded cutting is carried out; and the recurrence-free survival rate of the patient with the negative incision edge after supplementary excision is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a repositionable titanium clip assembly. Background Art

[0002] There is currently a consensus in the head and neck field about the safe resection margin, which is to select a specimen from the site closest to the tumor in the resected tumor specimen for frozen biopsy. If the result is negative, the resection range is considered sufficient. If the result is positive, it is necessary to expand the resection at the corresponding site of the tumor bed (defect side).

[0003] However, it is a challenge to find the position corresponding to the positive safety margin on the tumor bed. Studies have shown that if the surgeon points out the position of the specimen and the same surgeon determines each point 5 minutes later, the average error distance of the same point in the mucosal margin is 9 mm, the deep margin is 12 mm, and 32% (23 of 71) exceeds 1 cm. This repositioning deviation may lead to a lower recurrence-free survival rate in patients with negative margins after supplementary resection than in patients with negative initial margins. Therefore, it is very important to reposition the positive margin in the defect area. In order to solve this technical problem, a repositionable titanium clip component is proposed. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a repositionable titanium clip assembly, which can be used to position both sides of the cutting edge when removing the tumor. The repositionable titanium clip assembly is used to position the two sides, and after the tumor is removed, pathology is taken at the edge of the titanium clip. If it is positive, the corresponding titanium clip on the side of the tumor bed can be found, and the positive cutting edge can be repositioned in the defect area to perform expanded resection, thereby greatly improving the recurrence-free survival rate of patients with negative cutting edge after supplementary resection.

[0005] The present invention hopes that

[0006] The technical solution of the utility model is as follows:

[0007] A repositionable titanium clip assembly comprises two single titanium clips provided with matching marks, wherein the single titanium clips are composed of a clamping portion, a clamping arm and a marking portion, wherein the clamping portion is U-shaped or V-shaped, and two clamping arms are respectively connected to two ends of the clamping portion, and the marking portion is fixedly arranged on the outer side of the clamping portion away from the end of the clamping arm, and a matching mark is arranged on the marking portion.

[0008] Optionally, a matching mark is engraved on the marking portion.

[0009] Optionally, the pairing mark is hollowed out on the marking portion.

[0010] Pairs are marked by two identical numbers or letters.

[0011] The marking portion is semicircular, and the arc portion of the marking portion is arranged on a side away from the clamping portion.

[0012] The width of the clamping arm gradually narrows from the clamping portion to the end portion.

[0013] A plurality of transverse grooves are arranged on the inner side of the clamping arm.

[0014] A plurality of the transverse grooves are arranged equidistantly along the length direction of the clamping arm.

[0015] The beneficial effects of the utility model are:

[0016] The utility model discloses a repositionable titanium clip assembly, which can be used to position both sides of the cutting edge when removing a tumor. The repositionable titanium clip assembly is used to position both sides, and after the tumor is removed, pathology is taken at the edge of the titanium clip. If it is positive, the corresponding titanium clip on the side of the tumor bed can be found, and the positive cutting edge can be repositioned in the defect area to perform expanded resection, thereby greatly improving the recurrence-free survival rate of patients with negative cutting edges after supplementary resection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0018] In the attached picture:

[0019] Figure 1 This is a schematic diagram of the composition of a repositionable titanium clip assembly according to an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a single titanium clip of a repositionable titanium clip assembly according to an embodiment of the utility model;

[0021] Figure 3 for Figure 2 Middle AA section view;

[0022] The components represented by the reference numerals in the figure are:

[0023] The utility model comprises: 1. a single titanium clip, 11. a clamping portion, 12. a clamping arm, 121. a transverse groove, and 13. a marking portion. DETAILED DESCRIPTION

[0024] like Figure 1As shown, the repositionable titanium clip assembly includes two single titanium clips 1 provided with matching marks, which are used to locate both sides of the cutting edge when the tumor is removed. The repositionable titanium clip assembly is used to locate both sides, and the pathology is taken at the edge of the titanium clip after the tumor is removed. If it is positive, the corresponding titanium clip on the tumor bed side can be found, and the positive cutting edge can be repositioned in the defect area to perform expanded resection, thereby greatly improving the recurrence-free survival rate of patients with negative cutting edge after supplementary resection.

[0025] like Figure 2 and Figure 3 As shown, the single titanium clamp 1 consists of a clamping portion 11, a clamping arm 12 and a marking portion 13. The clamping portion 11 is U-shaped or V-shaped, and two clamping arms 12 are respectively connected to the two ends of the clamping portion 11. The marking portion 13 is fixedly arranged on the outer side of the clamping portion 11 away from the end of the clamping arm 12, and a matching mark is arranged on the marking portion 13.

[0026] In a specific embodiment, the pairing mark is engraved on the marking portion 13 .

[0027] In another specific embodiment, the pairing mark is hollowed out on the marking portion 13 .

[0028] Pairing marks are two identical numbers or letters, such as the numbers "1, 2, 3, etc." or the letters "A, B, C, etc."

[0029] The marking portion 13 is semicircular, and the arc portion of the marking portion 13 is arranged at a side away from the clamping portion 11 .

[0030] The width of the clamping arm 12 gradually narrows from the clamping portion 11 to the end portion. The clamping arm 12 is configured to have a narrow outer end so that the single titanium clip 1 can enter the target position easily.

[0031] In order to enhance the stability of clamping, a plurality of transverse grooves 121 are provided on the inner side of the clamping arm 12 , and the plurality of transverse grooves 121 are equidistantly arranged along the length direction of the clamping arm 12 .

[0032] The repositionable titanium clip assembly is used to locate both sides of the cutting edge when the tumor is removed. The repositionable titanium clip assembly is used to locate both sides. After the tumor is removed, pathology is taken at the edge of the titanium clip. If it is positive, the corresponding titanium clip on the tumor bed side can be found to reposition the positive cutting edge in the defect area and perform expanded resection, which greatly improves the recurrence-free survival rate of patients with negative cutting edge after supplementary resection.

Claims

1. A repositionable titanium clip assembly, characterized in that: The invention comprises two single titanium clamps (1) provided with matching marks, wherein the single titanium clamps (1) are composed of a clamping portion (11), a clamping arm (12) and a marking portion (13); the clamping portion (11) is U-shaped or V-shaped, the two clamping arms (12) are respectively connected to the two ends of the clamping portion (11); the marking portion (13) is fixedly arranged on the outer side of the clamping portion (11) away from the end of the clamping arm (12); and the matching mark is arranged on the marking portion (13).

2. A repositionable titanium clip assembly according to claim 1, characterized in that: The pairing mark is engraved on the marking portion (13).

3. A repositionable titanium clip assembly according to claim 1, characterized in that: The pairing mark is hollowed out on the marking portion (13).

4. The repositionable titanium clip assembly according to claim 1, characterized in that: The pairing marks are two identical numbers or letters.

5. The repositionable titanium clip assembly according to claim 1, characterized in that: The marking portion (13) is semicircular, and the arc-shaped portion of the marking portion (13) is arranged on a side away from the clamping portion (11).

6. The repositionable titanium clip assembly according to claim 1, characterized in that: The width of the clamping arm (12) gradually narrows from the clamping portion (11) to the end portion.

7. The repositionable titanium clip assembly according to claim 1, characterized in that: A plurality of transverse grooves (121) are provided on the inner side of the clamping arm (12).

8. A repositionable titanium clip assembly according to claim 7, characterized in that: A plurality of the transverse grooves (121) are arranged at equal distances along the length direction of the clamping arm (12).