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CN-121971140-A - Channel semi-circular cutting spine minimally invasive surgical instrument

CN121971140ACN 121971140 ACN121971140 ACN 121971140ACN-121971140-A

Abstract

A minimally invasive spinal surgical instrument with a channel and semi-circular cutting belongs to the technical field of minimally invasive spinal surgical auxiliary instruments, and solves the problems of poor operation cooperativity, limited adaptation and operation range, lack of safety protection structures and high use cost of the existing minimally invasive surgical instrument. The semi-ring cutting device comprises a semi-ring cutting outer channel, wherein a cutting window is arranged on the side wall of the lower end of the semi-ring cutting outer channel, an outer channel operating handle is arranged at the upper end of the semi-ring cutting outer channel, a semi-ring cutting inner channel is inserted into an inner channel jack of the semi-ring cutting outer channel, an inner channel operating handle is arranged at the upper end of the semi-ring cutting inner channel, semi-ring cutting saw teeth are arranged at the lower end of the semi-ring cutting inner channel, and an endoscope jack is arranged in the semi-ring cutting inner channel. The minimally invasive endoscope channel minimally invasive surgery device is reasonable in design and compact in structure, can adapt to minimally invasive surgery demands of an endoscope channel, has the advantages of convenience in operation, effectiveness and safety, can adapt to various surgery area conditions, shortens a minimally invasive surgery learning curve, and effectively reduces operation difficulty and surgery risks.

Inventors

  • WANG HUAN
  • ZHANG ZHAN
  • ZHANG LEI
  • CUI SHAOQIAN

Assignees

  • 中国医科大学附属盛京医院

Dates

Publication Date
20260505
Application Date
20260401

Claims (10)

  1. 1. A minimally invasive surgical instrument for a semi-circular cutting spine comprises a semi-circular cutting outer channel (1) and is characterized in that a cutting window (2) is arranged on the side wall of the lower end of the semi-circular cutting outer channel (1), an outer channel operating handle (3) is arranged at the upper end of the semi-circular cutting outer channel (1), a semi-circular cutting inner channel (4) is inserted into an inner channel inserting hole (12) of the semi-circular cutting outer channel (1), an inner channel operating handle (5) is arranged at the upper end of the semi-circular cutting inner channel (4), semi-circular cutting saw teeth (23) are arranged at the lower end of the semi-circular cutting inner channel (4), the semi-circular cutting saw teeth (23) correspond to the cutting window (2) in position, and an inner mirror inserting hole (24) for inserting a spine endoscope (11) is formed in the semi-circular cutting inner channel (4).
  2. 2. The channel semi-circular cutting spine minimally invasive surgical instrument according to claim 1, wherein side cutting edges (17) are respectively arranged on two sides of a cutting window (2) at the lower end of the semi-circular cutting outer channel (1).
  3. 3. The channel semi-circular cutting spine minimally invasive surgical instrument of claim 1, wherein an arc-shaped anti-damage limiting clamping block (19) is arranged at the bottom of the lower end of the semi-circular cutting outer channel (1) and below the inner side of the cutting window (2), and the position of the anti-damage limiting clamping block (19) corresponds to the position of a semi-circular cutting saw tooth (23) at the lower end of the semi-circular cutting inner channel (4).
  4. 4. The channel semi-circular cutting spine minimally invasive surgical instrument of claim 1, wherein a plurality of arc-shaped pushing protrusions (18) which are arranged along the circumference of the outer wall are arranged on the lower end of the semi-circular cutting outer channel (1) and the outer side wall below the outer side of the cutting window (2).
  5. 5. The minimally invasive spinal surgical instrument with the semi-circular channel cutting is characterized in that a rotating limiting cone (6) is arranged at one end, close to an endoscope insertion hole (24), of an inner channel operating handle (5) at the upper end of the semi-circular inner channel (4), and correspondingly, a rotating limiting clamping groove (15) matched with the rotating limiting cone (6) is formed at the upper end of the semi-circular outer channel (1).
  6. 6. The channel semi-circular cutting spine minimally invasive surgical instrument of claim 1, wherein an outer channel end observing bevel (20) is arranged at the lower end of the semi-circular cutting outer channel (1) and at one side where a cutting window (2) is not arranged, and correspondingly, an inner channel end observing bevel (26) is arranged at the lower end of the semi-circular cutting inner channel (4) and at one side where semi-circular cutting saw teeth (23) are not arranged.
  7. 7. The channel semi-circular cutting spine minimally invasive surgical instrument according to claim 1, wherein an auxiliary pressurizing lever (8) is arranged above an inner channel operating handle (5) of the semi-circular cutting inner channel (4), the auxiliary pressurizing lever (8) comprises a lever handle (27), a base connecting part (29) at the front end of the lever handle (27) is hinged with a lever hinge inserting shaft (30) through a lever hinge inserting hole (13) on a mounting base (7) arranged at the front end of the outer channel operating handle (3), a jack positioning clamping block (31) is arranged at the extending end of the lever hinge inserting shaft (30), and the middle part of the auxiliary pressurizing lever (8) is contacted with the front end of the inner channel operating handle (5).
  8. 8. The minimally invasive surgical instrument for semi-circular channel cutting spinal column according to claim 7, wherein a roller guide arc-shaped pressing rail (28) is further arranged between a lever handle (27) and a base connecting part (29) of the auxiliary pressurizing lever (8), and correspondingly, the front end of an inner channel operating handle (5) of the semi-circular inner channel (4) is provided with an inner channel rotating guide roller (25).
  9. 9. The minimally invasive surgical instrument for the semi-cut spine through the channel according to claim 7, wherein the lever hinge insertion holes (13) on the mounting base (7) are of a multi-hole insertion hole structure.
  10. 10. The channel semi-circular cutting spine minimally invasive surgical instrument according to claim 1, wherein an endoscope support (9) is further arranged above the semi-circular cutting outer channel (1) and the semi-circular cutting inner channel (4), an endoscope clamping groove (33) for assisting in lifting a spine endoscope (11) is formed in one end of the endoscope support (9), an endoscope support hinging lug plate (32) is arranged at the other end of the endoscope support (9), the endoscope support hinging lug plate (32) is hinged with an endoscope support hinging hole (14) formed in a mounting base (7) arranged at the front end of an outer channel operating handle (3) through an endoscope support locking bolt (10), a compression spring (36) is arranged between the endoscope support locking bolt (10) and the endoscope support hinging lug plate (32), an inner wall rough surface (34) of the clamping groove is arranged on the inner side of the endoscope clamping groove (33), and an ear plate outer wall rough surface (35) is arranged on the outer side surface of the endoscope support hinging lug plate (32) and in contact with the mounting base (7).

Description

Channel semi-circular cutting spine minimally invasive surgical instrument Technical Field The invention belongs to the technical field of spinal minimally invasive surgery auxiliary appliances, and particularly relates to a channel semi-circular cutting spinal minimally invasive surgery appliance. Background Minimally invasive surgery has wide application in the fields of spinal surgery and the like due to the advantages of small trauma and quick postoperative recovery. However, the existing spine minimally invasive surgical instrument has poor operation coordination, an operator needs to hold and control the depth and angle of the endoscope by one hand, core operations such as bone cutting, bone biting and the like can be completed by one hand, and the operation accuracy and efficiency are greatly limited. Moreover, the suitability of the existing instrument is insufficient, the instrument needs to be operated through an endoscope channel, the size of the matched instrument is limited by the channel size of the conventional structure, when the instrument faces special scenes such as hyperosteogeny, the small-size surgical instrument is easy to wear, and the conventional instrument such as a vertebral plate clamp has a narrow excision scope, so that the operation is time-consuming and labor-consuming. Meanwhile, the operation range of the conventional minimally invasive instrument is limited, the visual field angle of the minimally invasive surgical endoscope is about 30 degrees, the instrument is required to be provided with curvature to adapt to the operation of the channel edge, and the actions such as peripheral excision, transverse cutting and bone biting of the curvature instrument are difficult to realize due to the space limitation of the endoscope channel. In addition, the existing minimally invasive instrument has no special depth limiting protection structure, and is easy to damage peripheral tissues such as nerve roots and dura mater and the like due to hand loss in operations such as bone cutting, yellow ligament cutting and the like, so that the risk of nerve damage in operation is high. When the bone hyperplasia or the hardening condition is met, the conventional instrument cannot be operated, special tools such as ball milling drills, ultrasonic bone knives and the like are required to be purchased additionally, the equipment expense investment of medical institutions is increased, the clinical use cost is high, and the learning curve of the existing minimally invasive surgery technology is long. There is a need for improvements in the prior art spinal minimally invasive surgical instruments. Disclosure of Invention Aiming at the problems, the invention provides the minimally invasive surgical instrument for the semi-loop cutting spine, which can adapt to the minimally invasive surgery requirement of an endoscope channel, has the advantages of operation convenience, effectiveness and safety, can adapt to various surgery conditions, shortens the learning curve of the minimally invasive surgery, and effectively reduces the operation difficulty and the surgery risk. The technical scheme includes that the semi-circular cutting spine minimally invasive surgical instrument comprises a semi-circular cutting outer channel, a cutting window is formed in the side wall of the lower end of the semi-circular cutting outer channel, an outer channel operating handle is arranged at the upper end of the semi-circular cutting outer channel, a semi-circular cutting inner channel is inserted into an inner channel inserting hole of the semi-circular cutting outer channel, an inner channel operating handle is arranged at the upper end of the semi-circular cutting inner channel, semi-circular cutting saw teeth are arranged at the lower end of the semi-circular cutting inner channel, the semi-circular cutting saw teeth correspond to the cutting window in position, and an endoscope inserting hole for inserting a spine endoscope is formed in the semi-circular cutting inner channel. And two sides of the cutting window at the lower end of the semi-circular cutting outer channel are respectively provided with a side cutting edge. To assist in cutting by means of side cutting edges on the side walls of the outer channel on either side of the cutting window. The lower end bottom of the semi-ring cutting outer channel and the lower part of the inner side of the cutting window are provided with arc-shaped anti-damage limiting clamping blocks, and the positions of the anti-damage limiting clamping blocks correspond to the positions of the semi-ring cutting saw teeth at the lower end of the semi-ring cutting inner channel. In order to utilize the arc of cutting window inboard below to prevent damaging spacing fixture block in the use of apparatus, effectively prevent the condition that semi-circular cutting sawtooth damaged nerve. The lower end of the semi-circular cutting outer channel and the outer side wall below the oute