A biopsy fixation device for labial glands

CN224761918UActive Publication Date: 2026-09-18ZHONGNAN HOSPITAL OF WUHAN UNIV
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Patent Information

Application Number
CN202520777319.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-09-18
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

[0003]目前唇腺活检常规操作如下:需要一名手术助手,助手使用双手的拇指、食指固定并翻开患者下唇,充分暴露手术部位,局部常规消毒、麻醉,然后由手术医师持手术刀切开下唇部粘膜、暴露唇腺组织后,需用镊子夹住唇腺,再用手术刀或剪刀割除根部,取下唇腺组织并送检病理.由于唇腺活检的检查部位的特殊性,人的口唇宽度有限,加之助手双手拇指占据了一定空间,使得唇腺活检手术操作的空间进一步缩小,加大了手术的难度,不能很好的保证手术操作过程的顺利性和安全性

Benefits of technology

[0011] The beneficial effects of this utility model after adopting the above technical solution are as follows: the operating port of the second clamping part directly exposes the target mucosal area, ensuring that the doctor can accurately sample and reduce the risk of mistakenly taking normal tissue. The first clamping part presses from the outside of the lip, and the second clamping part supports from the inside of the lip, so that the lesion area is stably raised, avoiding tissue slippage and improving the sampling success rate.

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Abstract

The utility model discloses a biopsy fixing device for labial gland, it relates to medical instrument technical field. It includes first clamping part, second clamping part and pressing plate, first clamping part and second clamping part rotation connection, the pressing plate is equipped with two respectively in the first clamping part and the front end of second clamping part, be equipped with operating mouth on the pressing plate of second clamping part front end, first clamping part with second clamping part each other extrude first clamping part from the outside of lip mucosa of the inside of the lip area of patient from the outside of lip and is pressed into operating mouth. The utility model has the beneficial effect that the operating mouth of second clamping part directly exposes target mucosa area, ensures that the doctor can accurate sampling, reduces the risk of mis-taking normal tissue, and the first clamping part is pressed from the outside of lip, and the second clamping part supports in the inside of lip, makes the pathological change area stable and bulges, avoids the tissue sliding, and improves the sampling success rate.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a biopsy fixation device for labial glands. Background Technology

[0002] Labial gland biopsy is an important method for diagnosing diseases such as Sjögren's syndrome and amyloidosis. It requires the removal of a small amount of labial gland tissue for pathological examination.

[0003] The current routine procedure for labial gland biopsy is as follows: A surgical assistant is required. The assistant uses their thumbs and index fingers to fix and open the patient's lower lip to fully expose the surgical site. Local disinfection and anesthesia are performed routinely. Then, the surgeon uses a scalpel to cut open the lower lip mucosa, exposes the labial gland tissue, grasps the gland with forceps, and then cuts off the root with a scalpel or scissors. The labial gland tissue is then taken and sent for pathological examination. Due to the special nature of the examination site for labial gland biopsy, the width of the human mouth is limited, and the assistant's thumbs occupy a certain amount of space, further reducing the operating space for labial gland biopsy, increasing the difficulty of the surgery, and making it difficult to guarantee the smoothness and safety of the surgical procedure. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the present invention provides a biopsy fixation device for labial glands, which can easily expose the surgical site and facilitate doctors to perform labial gland biopsy surgery on patients.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a biopsy fixation device for labial glands, comprising a first clamping part, a second clamping part, and a pressure plate. The first clamping part and the second clamping part are rotatably connected. Through the rotatably connected opening and closing structure, the doctor can operate with one hand while the other hand can simultaneously perform biopsy or assist in adjustment. The pressure plate has two plates located at the front ends of the first clamping part and the second clamping part, respectively. The pressure plate at the front end of the second clamping part is provided with an operating port. The first clamping part and the second clamping part squeeze each other, and the first clamping part pushes the mucosa on the inner side of the lip of the diseased area into the operating port from the outside of the lip.

[0006] Furthermore, the pressure plate is circular, and all edges of the pressure plate are rounded. The circular pressure plate conforms to the arcuate anatomical structure of the lips, making it easy to adjust the angle within the narrow space of the oral cavity. At the same time, the smooth edge design avoids scratching the lip mucosa with sharp edges.

[0007] Furthermore, the operating port is circular or elliptical in shape. A circular or elliptical opening can accommodate different biopsy instruments (such as puncture needles and biopsy forceps).

[0008] Furthermore, the first clamping part, the second clamping part, and the pressure plate are integrally formed. The integrally formed clamping part avoids assembly errors, ensures synchronized movements, and reduces operational complexity. The absence of complex gaps or detachable parts reduces cleaning difficulty and makes it suitable for high-temperature, high-pressure sterilization or single-use.

[0009] Furthermore, the pressure plate at the front end of the first clamping part is integrally formed with the first clamping part, and the pressure plate at the front end of the second clamping part is clamped to the second clamping part. The second clamping part adopts a snap-fit ​​pressure plate, which is convenient for replacement or sterilization and can adapt to different surgical needs.

[0010] Furthermore, the front end of the second clamping part is provided with a locking groove adapted to the pressure plate, and a locking block is provided in the locking groove. The pressure plate installed at the front end of the second clamping part is provided with a connecting groove adapted to the locking block. The matching design of the locking block and the connecting groove allows the pressure plate to be flexibly disassembled and assembled, enabling it to be quickly replaced, ensuring one-time use and sterilization, and avoiding cross-infection between patients.

[0011] The beneficial effects of this utility model after adopting the above technical solution are as follows: the operating port of the second clamping part directly exposes the target mucosal area, ensuring that the doctor can accurately sample and reduce the risk of mistakenly taking normal tissue. The first clamping part presses from the outside of the lip, and the second clamping part supports from the inside of the lip, so that the lesion area is stably raised, avoiding tissue slippage and improving the sampling success rate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0015] Explanation of reference numerals in the attached drawings: First clamping part 1, Second clamping part 2, Mounting slot 21, Mounting block 22, Pressure plate 3, Operating port 31, Connecting slot 32. Detailed Implementation

[0016] See Figure 1As shown, the technical solution adopted in this specific embodiment is: a fixation device for labial gland biopsy, including a first clamping part 1 and a second clamping part 2 rotatably connected, wherein the front part of both clamping parts is provided with a circular pressure plate 3, and the first clamping part 1, the second clamping part 2 and the pressure plate 3 are integrally formed. The edge of the pressure plate 3 is arc-shaped to ensure operational safety, and the pressure plate 3 at the front end of the second clamping part 2 is provided with a circular or elliptical operating opening 31 for exposing the biopsy area.

[0017] The working principle of this utility model: Preoperative preparation: Ensure the device is in the open position (the first clamping part 1 and the second clamping part 2 are separated), and disinfect the part that comes into contact with the mucous membrane.

[0018] The biopsy area (such as a suspected lesion in the labial gland) is confirmed through the operating port 31.

[0019] Positioning and clamping: The second clamping part 2 is attached to the mucosal surface of the inner lip, and the operating port 31 is aligned with the target biopsy area.

[0020] The closing device applies pressure from the outer side to the inner side of the lip, pushing the target mucosal region into the operating port 31 of the second clamping part 2. The mucosa is fixed by the compression of the two clamping parts, forming a local bulge.

[0021] Biopsy procedure: The physician performs biopsies (such as punctures or incisions) through the mucosa exposed by the operating port 31. The round / oval design of the operating port 31 facilitates instrument insertion and exit, while the curved edge at the tip reduces tissue damage. Continuous pressure from the clamping portion reduces bleeding and provides a stable field of view.

[0022] Release and Retrieval: After sampling is completed, slowly release the clamping part to relieve the pressure on the mucosa.

[0023] See Figure 2 As shown, another embodiment employs the following technical solution: the pressure plate 3 at the front end of the first clamping part 1 is integrally formed with the first clamping part 1, and the pressure plate 3 at the front end of the second clamping part 2 is clampedly connected to the second clamping part 2. The second clamping part 2 uses a snap-fit ​​pressure plate 3, which is convenient for replacement or sterilization and adapts to different surgical needs. Specifically, the front end of the second clamping part 2 is provided with a snap-fit ​​groove 21 that matches the pressure plate 3, and a snap-fit ​​block 22 is provided in the snap-fit ​​groove 21. The pressure plate 3 installed at the front end of the second clamping part 2 is provided with a connecting groove 32 that matches the snap-fit ​​block 22. The installation method of the snap-fit ​​block 22 and the connecting groove 32 is the same as the installation method of the scalpel handle and scalpel. This design allows the pressure plate 3 to be flexibly disassembled and assembled, enabling it to be quickly replaced, ensuring one-time use and sterilization, and avoiding cross-infection between patients.

[0024] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A biopsy fixation device for labial glands, characterized by: It includes a first clamping part (1), a second clamping part (2) and a pressure plate (3). The first clamping part (1) and the second clamping part (2) are rotatably connected. The pressure plate (3) has two parts located at the front ends of the first clamping part (1) and the second clamping part (2) respectively. The pressure plate (3) at the front end of the second clamping part (2) has an operating port (31). The first clamping part (1) and the second clamping part (2) squeeze each other. The first clamping part (1) pushes the mucosa on the inner side of the lip of the affected area into the operating port (31) from the outside of the lip.

2. The biopsy fixation device for labial glands according to claim 1, characterized in that: The pressure plate (3) is circular, and the edges of the pressure plate (3) are all arc-shaped.

3. The biopsy fixation device for labial glands according to claim 1, characterized in that: The operating port (31) is circular or elliptical in shape.

4. The biopsy fixation device for labial glands according to claim 1, characterized in that: The first clamping part (1), the second clamping part (2) and the pressure plate (3) are integrally formed.

5. The biopsy fixation device for labial glands according to claim 1, characterized in that: The pressure plate (3) at the front end of the first clamping part (1) is integrally formed with the first clamping part (1), and the pressure plate (3) at the front end of the second clamping part (2) is clamped to the second clamping part (2).

6. The biopsy fixation device for labial glands according to claim 1, characterized in that: The front end of the second clamping part (2) is provided with a mounting groove (21) that is adapted to the pressure plate (3), and a mounting block (22) is provided in the mounting groove (21). The pressure plate (3) installed at the front end of the second clamping part (2) is provided with a connecting groove (32) that is adapted to the mounting block (22).