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CN-122005012-A - Multi-drill minimally invasive surgical device and method for keloid trephine excision

CN122005012ACN 122005012 ACN122005012 ACN 122005012ACN-122005012-A

Abstract

The invention relates to the technical field of keloid excision and discloses a multi-bit minimally invasive surgical device for keloid trephine excision, which comprises a handle and further comprises a rotating disc, a plurality of barrel grooves and connecting barrels, wherein the rotating disc is rotatably arranged at the front end of the handle, the barrel grooves are uniformly formed in a ring shape, each barrel groove is movably inserted with a connecting barrel, the first end of each connecting barrel is provided with a trephine, the second end of each connecting barrel is detachably connected with an inner shaft, the inner shafts are movably and telescopically arranged in the handle and can freely rotate, and the multi-bit minimally invasive surgical device for keloid trephine excision is characterized in that the rotating disc is arranged at the front end of the handle, and a plurality of barrel grooves are annularly uniformly distributed on the rotating disc to integrate the trephines with different diameters, so that an operator can quickly select and switch the matched trephines in the same minimally invasive surgical process, the adaptability of the device to keloids with different sizes and shapes is improved, and the frequency of instrument replacement in the operation is reduced.

Inventors

  • LIU MENGGUO

Assignees

  • 复旦大学附属华山医院

Dates

Publication Date
20260512
Application Date
20260312

Claims (10)

  1. 1. A multi-bit minimally invasive surgical device for keloid trephine excision comprising a handle (1), characterized in that it further comprises: a rotating disc (3) rotatably mounted at the front end of the handle (1); A plurality of barrel grooves (4) are uniformly formed on the rotating disc (3) in a ring shape, a connecting barrel (5) is movably inserted in each barrel groove (4), a ring bit (6) is arranged at the first end of the connecting barrel (5), and the second end of the connecting barrel is detachably connected with the inner shaft (11); the inner shaft (11) is movably and telescopically arranged in the handle (1) and can freely rotate; Through rotating the rotating disc (3), connecting cylinders (5) in different cylinder grooves (4) can be selectively connected with the inner shafts (11), so that the same inner shaft (11) can respectively carry out rotary driving and axial feeding on ring drills (6) with different diameters in different operation stages, and stable and controllable ring drill excision of keloids with different sizes in the same minimally invasive operation process is realized.
  2. 2. A multi-bit minimally invasive surgical device for keloid trephine excision as claimed in claim 1, characterized in that the rotating disc (3) is rotatably mounted on the handle (1) at its centre by means of a rotating shaft (2).
  3. 3. A multi-bit minimally invasive surgical device for keloid trephine excision according to claim 1, characterized in that the end of the trephine (6) has a cutting edge (7).
  4. 4. The multi-bit minimally invasive surgical device for keloid trephine excision of claim 1, wherein the second end of the connecting cylinder (5) is provided with a prismatic groove (9), a hollow prism (10) is movably inserted into the prismatic groove (9), and the hollow prism (10) is fixedly arranged at the end part of the inner shaft (11).
  5. 5. The multi-bit minimally invasive surgical device for keloid trephine excision of claim 4, wherein the trephine (6) is magnetically connected with the rotating disc (3) through a first magnetic block group (21); The hollow prisms (10) are magnetically connected in the prism grooves (9) through a second magnetic block group (22).
  6. 6. A multi-bit minimally invasive surgical device for keloid trephine excision according to claim 1 or 4 or 5, characterized in that a negative pressure suction channel (8) is formed between the connecting cylinder (5) and the inner shaft (11); the washing pipe (20) is also arranged at the tail part of the handle (1) and is movably inserted into the negative pressure suction cavity (8).
  7. 7. A multi-bit minimally invasive surgical device for keloid trephine excision as claimed in claim 1, characterized in that the outer wall of the inner shaft (11) is meshed with a driving gear (12), the driving gear (12) is fixedly assembled on a driving shaft (13), the driving shaft (13) is rotatably installed in the handle (1) and is driven to rotate by a rotating motor (14).
  8. 8. A multi-bit minimally invasive surgical device for keloid trephine excision as claimed in claim 1 or 7, wherein a rotating sleeve (15) is rotatably mounted on the inner shaft (11), a sliding block (16) is fixedly mounted on the rotating sleeve (15), the sliding block (16) is screwed on a screw rod (17), the screw rod (17) is rotatably mounted in the handle (1), and the rotating sleeve is driven to rotate by a telescopic motor (18).
  9. 9. The multi-bit minimally invasive surgical device for keloid trephine excision of claim 8, wherein the sliding block (16) is further movably inserted with a limiting rod (19), and the limiting rod (19) is fixedly arranged in the handle (1).
  10. 10. A method of using a multi-bit minimally invasive surgical device for keloid trephine excision, for a multi-bit minimally invasive surgical device for keloid trephine excision as claimed in any of claims 1-9, comprising the steps of: S1, rotating the rotating disc (3) according to the size and the shape of keloids, so that a ring drill bit (6) matched with the size of the target keloids is connected with an inner shaft (11); S2, aligning a ring drill (6) of the device to a keloid area, and enabling the ring drill (6) to be attached perpendicular to the surface of the skin; S3, enabling the inner shaft (11) to drive the selected trephine (6) to rotate, and trephine excision is carried out on keloids under the axial feeding action of the inner shaft (11); s4, in the trephine cutting process, the resected scar tissue is synchronously sucked through a negative pressure suction cavity (8) formed by the inner shaft (11) and the connecting cylinder (5); S5, stopping rotating and feeding after the ring bit (6) reaches a preset cutting depth, and withdrawing the ring bit (6) to finish cutting of the single keloid.

Description

Multi-drill minimally invasive surgical device and method for keloid trephine excision Technical Field The invention relates to the technical field of keloid excision, in particular to a multi-bit minimally invasive surgical device and method for keloid trephine excision. Background Keloids are abnormal proliferative lesions of fibrous tissues occurring in dermis layers of skin, which are frequently generated after wounds, operations, burns or inflammations, and whose lesion tissues can continuously grow, and are often accompanied with uncomfortable symptoms such as pain, itching and the like, and seriously affect the appearance and quality of life of patients. Because keloids have the characteristics of compact tissues, poor elasticity, easy recurrence and the like, the clinical treatment of keloids has certain difficulty. Currently, the treatment methods for keloids mainly comprise modes of drug injection, laser treatment, radiation treatment, surgical excision and the like. Wherein, the surgical excision is used as a mode for directly removing the focus, and is suitable for keloids with larger volumes or poor response to conservative treatment. However, conventional scalpel resections often require the formation of larger incisions, which not only cause greater damage to surrounding normal skin tissue, but also tend to form new linear scars after surgery, affecting aesthetics and increasing recurrence risk. In order to reduce the surgical trauma, the keloid is clinically treated by adopting a minimally invasive mode of trephine excision, and the mode is used for columnar excision of scar tissues through an annular drill, so that the keloid has the advantages of small incision, quick healing, good effect and the like. However, the existing trephine excision technology still mainly depends on a single-specification trephine, is difficult to flexibly adapt to keloid lesions with different forms, sizes and distribution ranges, and for larger or irregular scars, multiple instrument replacement or repeated operation are often required, so that the complexity and the operation risk of the operation are increased. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a multi-bit minimally invasive surgical device and a method for cutting out keloid trephine, which have the advantage of being capable of conveniently replacing trephines with different sizes. (II) technical scheme In order to achieve the aim of conveniently replacing ring drills with different sizes, the invention provides the following technical scheme that the multi-drill minimally invasive surgery device for cutting out keloid ring drills comprises a handle and further comprises: The rotating disc is rotatably arranged at the front end of the handle; a plurality of barrel grooves are uniformly formed on the rotating disc in a ring shape, a connecting barrel is movably inserted in each barrel groove, a ring bit is arranged at the first end of each connecting barrel, and the second end of each connecting barrel is detachably connected with the inner shaft; The inner shaft is movably and telescopically arranged in the handle and can freely rotate; The connecting cylinders in different cylinder grooves can be selectively connected with the inner shaft by rotating the rotating disc, so that the same inner shaft can respectively carry out rotary driving and axial feeding on ring drills with different diameters in different operation stages, and stable and controllable ring drill excision of keloids with different sizes in the same minimally invasive operation process is realized. In the invention, further, the center of the rotating disc is rotatably arranged on the handle through the rotating shaft. In the invention, further, the end part of the ring bit is provided with a cutting edge. In the invention, further, the second end of the connecting cylinder is provided with a prismatic groove, a hollow prism is movably inserted in the prismatic groove, and the hollow prism is fixedly arranged at the end part of the inner shaft. In the invention, the ring bit is further connected with the rotating disc through a magnetic attraction of the magnetic attraction block group; the hollow prism is connected in the prism groove through the second magnetic attraction of the magnetic attraction block group. In the invention, a negative pressure suction cavity is formed between the connecting cylinder and the inner shaft in a penetrating way; The flushing pipe is fixedly arranged at the tail part of the handle and movably inserted into the negative pressure suction cavity. In the invention, further, the outer wall of the inner shaft is meshed with a driving gear, the driving gear is fixedly assembled on a driving shaft, the driving shaft is rotatably arranged in the handle, and the driving shaft is driven to rotate by a rotating motor. In the invention, further, a rotating sleeve is rotatably arr