Ear reconstruction drain placement forceps

By designing a guide forceps with an arc-shaped clamping section and a hinged structure, the problem of difficult insertion of drainage tubes in ear reconstruction surgery was solved, achieving efficient and stable placement of drainage tubes, reducing tissue traction, and improving surgical efficiency and comfort.

CN224462095UActive Publication Date: 2026-07-07SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Filing Date
2025-04-10
Publication Date
2026-07-07

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Abstract

The utility model relates to an ear reconstruction drainage tube placing guide forceps, including the first forceps body and the second forceps body of mutual adaptation, the first forceps body includes the first clamping head, first axle section and first holding part that link, the second forceps body includes the second clamping head, second axle section and second holding part that link, through the axle pin of setting between first axle section and second axle section to make the first forceps body and the second forceps body articulate, still include: the first clamping head includes the first clamping section, first arc section and first clamping part that extend from inside to outside, the second clamping head includes the second clamping section, second arc section and second clamping part that extend from inside to outside, the guide forceps clamps the front end of the guide tube through the first clamping part and the second clamping part, then places the first clamping part and the second clamping part in the guide position, can directly return along the original road after loosening the first clamping part and the second clamping part, has improved work efficiency and reduced the unnecessary traction to the surrounding tissue.
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Description

Technical Field

[0001] This utility model relates to the field of guiding forceps technology, specifically to a guiding forceps for placing an ear reconstruction drainage tube. Background Technology

[0002] In clinical practice, during primary ear reconstruction surgery for congenital microtia, a drainage tube needs to be placed. The doctor makes a puncture or a small incision at the selected insertion point, and then inserts the drainage tube through the needle tube of the puncture needle or the small incision. Ideally, the tip of the drainage tube is slowly inserted into the location to be drained. However, because the drainage tube is elastic, it is difficult to insert it into the predetermined position without external assistance. Clinically, ordinary mosquito forceps are often used to grasp the tip of the drainage tube for placement.

[0003] The inventors discovered in clinical practice that, since the subcutaneous pedicle of the flap is about 1-1.5 cm long, when using ordinary mosquito forceps, the forceps are difficult to turn and pull due to the obstruction of the subcutaneous pedicle tissue, making it difficult to place the drainage tube in the appropriate position. Utility Model Content

[0004] The purpose of this invention is to overcome at least one of the defects in the prior art by providing a guide forceps for placing an ear reconstruction drainage tube. This guide forceps clamps the front end of the drainage tube using a first clamping part and a second clamping part. The first and second clamping parts are then inserted into the subcutaneous tissue or deep to the cartilage framework of the ear at the desired drainage location. After releasing the first and second clamping parts, the tube can be directly returned along its original path, without requiring the use of mosquito forceps in existing clinical practice to bend and pull the drainage tube before it can be placed in the appropriate position.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A guide forceps for placing an ear reconstruction drainage tube includes a first forceps body and a second forceps body adapted to each other. The first forceps body includes a connected first clamping head, a first shaft segment, and a first gripping part. The second forceps body includes a connected second clamping head, a second shaft segment, and a second gripping part. The first forceps body and the second forceps body are hinged by a pin disposed between the first shaft segment and the second shaft segment. The forceps body further includes:

[0007] The first clamping head includes a first clamping segment, a first arc-shaped segment, and a first clamping part extending from the inside to the outside;

[0008] The second clamping head includes a second clamping segment extending from the inside to the outside, a second arc-shaped segment, and a second clamping part;

[0009] The arc angles of the first and second arc segments are 70° to 110°. Preferably, the arc angles of the first and second arc segments are one of 80°, 90°, or 110°.

[0010] Furthermore, the clamping surfaces of the first clamping part and the second clamping part are provided with anti-slip textures.

[0011] Furthermore, the anti-slip texture is one of the following: horizontal stripes, vertical stripes, or a grid formed by the intersection of horizontal and vertical stripes.

[0012] Furthermore, the ends of the first clamping portion and the ends of the second clamping portion are provided with oval-shaped hole rings.

[0013] Furthermore, the length ratio of the first clamping part to the first clamping segment is 1 / 3 to 1.

[0014] Furthermore, the length ratio of the first clamping segment to the first gripping portion is 1 / 3 to 1.

[0015] Furthermore, the first gripping part and the second gripping part are respectively provided with a first positioning tooth and a second positioning tooth.

[0016] Furthermore, the first positioning tooth and the second positioning tooth are separated from each other or overlap each other, and a number of teeth for interlocking are provided on the longitudinal plane of the overlap.

[0017] Furthermore, the ends of the first grip portion and the second grip portion are respectively provided with a first handle ring and a second handle ring.

[0018] Compared with the prior art, this utility model provides a guide forceps for placing an ear reconstruction drainage tube. The guide forceps clamp the front end of the drainage tube with a first clamping part and a second clamping part, and then place the first clamping part and the second clamping part into the drainage position under the skin or deep to the fascia behind the ear. After releasing the first clamping part and the second clamping part, it can be returned directly along the original path. It does not need to turn and pull the drainage tube with the mosquito forceps used in existing clinical practice before it can be placed in the appropriate position, which improves work efficiency and reduces unnecessary traction on surrounding tissues. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the placement of guide forceps for the tympanic reconstruction drainage tube in an embodiment;

[0020] Figure 2 This is a schematic diagram of the placement of the tympanic reconstruction drainage tube and the clamping of the drainage tube with guide forceps in an embodiment;

[0021] The numbers in the diagram indicate: 1-First clamp body; 2-Second clamp body; 101-First handle ring; 102-First gripping part; 103-First shaft segment; 104-First clamping section; 105-First arc-shaped section; 106-First clamping part; 201-Second handle ring; 202-Second gripping part; 203-Second shaft segment; 204-Second clamping section; 205-Second arc-shaped section; 206-Second clamping part; 3-Anti-slip texture; 4-Oval hole ring; 5-Drainage tube. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0023] Example

[0024] This embodiment provides a guide forceps for placing an ear reconstruction drainage tube; see the specific structure below. Figure 1 The first clamp 1 and the second clamp 2 are adapted to each other. The first clamp 1 includes a connected first gripping head, a first shaft segment 103, and a first gripping part 102. The second clamp 2 includes a connected second gripping head, a second shaft segment 203, and a second gripping part 202. The first clamp 1 and the second clamp 2 are hinged by a pin disposed between the first shaft segment 103 and the second shaft segment 203.

[0025] The first clamping head includes a first clamping segment 104, a first arc-shaped segment 105, and a first clamping portion 106 extending from the inside to the outside; the second clamping head includes a second clamping segment 204, a second arc-shaped segment 205, and a second clamping portion 206 extending from the inside to the outside.

[0026] Wherein, the arc of the first arc segment 105 and the second arc segment 205 is 70°~110°. Preferably, the arc of the first arc segment 105 and the second arc segment 205 is one of 80°, 90° or 110°.

[0027] In this embodiment, the clamping surfaces of the first clamping part 106 and the second clamping part 206 are provided with anti-slip textures 3. The shape of the anti-slip textures 3 is one of horizontal stripes, vertical stripes, or a grid formed by the intersection of horizontal and vertical stripes. The anti-slip textures 3 can increase the friction between the anti-slip textures and the drainage tube 5, prevent the drainage tube 5 from sliding during clamping, ensure the stability of clamping, and facilitate more accurate placement of the drainage tube 5.

[0028] In this embodiment, the ends of the first clamping part 106 and the second clamping part 206 are provided with oval hole rings 4, which can help fix the drainage tube 5 during operation.

[0029] In this embodiment, the length ratio of the first clamping part 106 to the first clamping segment 104 is 1 / 3 to 1; the length ratio of the first clamping segment 104 to the first holding part 102 is 1 / 3 to 1. This reasonable length ratio design allows the guide forceps to better transmit force and be manipulated during use, facilitating flexible operation by the surgeon according to different surgical needs and improving operational flexibility and efficiency.

[0030] In this embodiment, the first gripping part 102 and the second gripping part 202 are respectively provided with a first positioning tooth and a second positioning tooth; the first positioning tooth and the second positioning tooth are separated from each other or overlap each other, and a plurality of teeth for interlocking are provided on the overlapping longitudinal plane, which can realize the locking function of the guide pliers, so that the user can fix the opening degree of the jaws when needed, providing a stable operating state, and can also be adjusted according to actual needs to adapt to different operating scenarios.

[0031] In this embodiment, the ends of the first grip portion 102 and the second grip portion 202 are respectively provided with a first handle ring 101 and a second handle ring 201, providing users with a comfortable gripping position, facilitating doctors to hold and operate for a long time, reducing hand fatigue, and improving the comfort and accuracy of surgical operations.

[0032] Working principle:

[0033] The doctor performs a puncture or makes a small incision at the selected insertion point, and then inserts the drainage tube 5 through the needle tube of the puncture needle or the small incision. The first clamping part 106 and the second clamping part 106 of the guide forceps in this embodiment clamp the tip of the drainage tube. (See...) Figure 2 Then, the first clamping part 106 and the second clamping part 206 are placed under the skin or cartilage support behind the ear to be drained. After releasing the first clamping part 106 and the second clamping part 206, it can be returned directly along the original path. It is not necessary to turn and pull the drainage tube with the existing mosquito forceps in clinical practice before it can be placed in the appropriate position, which improves work efficiency and reduces unnecessary traction on surrounding tissues.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A guide forceps for placing an ear reconstruction drainage tube, comprising a first forceps body (1) and a second forceps body (2) adapted to each other, the first forceps body (1) comprising a first clamping head, a first shaft segment (103) and a first gripping part (102) connected together, the second forceps body (2) comprising a second clamping head, a second shaft segment (203) and a second gripping part (202) connected together, wherein the first forceps body (1) and the second forceps body (2) are hinged by a pin disposed between the first shaft segment (103) and the second shaft segment (203), characterized in that, Also includes: The first clamping head includes a first clamping segment (104), a first arc-shaped segment (105), and a first clamping part (106) extending from the inside to the outside. The second clamping head includes a second clamping section (204) extending from the inside to the outside, a second arc-shaped section (205), and a second clamping part (206); The arc of the first arc segment (105) and the second arc segment (205) is 70°~110°.

2. The ear reconstruction drainage tube placement guide forceps according to claim 1, characterized in that, The arc of the first arc segment (105) and the second arc segment (205) is one of 80°, 90° or 110°.

3. The ear reconstruction drainage tube placement guide forceps according to claim 1, characterized in that, The clamping surfaces of the first clamping part (106) and the second clamping part (206) are provided with anti-slip textures (3).

4. The ear reconstruction drainage tube placement guide forceps according to claim 3, characterized in that, The anti-slip texture (3) is one of the following: horizontal stripes, vertical stripes, or a grid formed by the intersection of horizontal and vertical stripes.

5. The ear reconstruction drainage tube placement guide forceps according to claim 1, characterized in that, The ends of the first clamping part (106) and the ends of the second clamping part (206) are provided with oval hole rings (4).

6. The ear reconstruction drainage tube placement guide forceps according to claim 1, characterized in that, The length ratio of the first clamping part (106) to the first clamping segment (104) is 1 / 3 to 1.

7. The ear reconstruction drainage tube placement guide forceps according to claim 1, characterized in that, The length ratio of the first clamping section (104) to the first gripping part (102) is 1 / 3 to 1.

8. The ear reconstruction drainage tube placement guide forceps according to claim 1, characterized in that, The first gripping part (102) and the second gripping part (202) are respectively provided with a first positioning tooth and a second positioning tooth.

9. A guide forceps for placing an ear reconstruction drainage tube according to claim 8, characterized in that, The first positioning tooth and the second positioning tooth are separated from each other or overlap each other, and several teeth for interlocking are provided on the overlapping longitudinal plane.

10. A guide forceps for placing an ear reconstruction drainage tube according to claim 1, characterized in that, The end of the first grip (102) and the end of the second grip (202) are respectively provided with a first handle ring (101) and a second handle ring (201).