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CN-121971127-A - Protection device for preventing spinal nerve compression

CN121971127ACN 121971127 ACN121971127 ACN 121971127ACN-121971127-A

Abstract

The application provides a protection device for preventing spinal nerve compression, and relates to the technical field of medical devices. The spine surgical operation device comprises a protective sleeve and a fixing frame, wherein the protective sleeve comprises an inner arc plate and an outer arc plate, an operation opening leading into a spine tube is formed in one side, close to a spinous process, of a spine, the inner arc plate is inserted between one side, far away from the operation opening, of a spinal nerve and the inner wall of the spine tube, one end of the outer arc plate is detachably connected with one end of the inner arc plate, the other end of the outer arc plate is detachably connected with the other end of the inner arc plate, the fixing frame is fixedly connected onto the spine, and the protective sleeve is detachably connected with the fixing frame. The application has the effects of simplifying the operation process and reducing the operation difficulty.

Inventors

  • HE JULIANG
  • GUAN JIAN
  • WANG HAIGUANG
  • LIU YUN
  • QIN XIONG

Assignees

  • 北京市富乐科技开发有限公司
  • 贺聚良

Dates

Publication Date
20260505
Application Date
20260227

Claims (10)

  1. 1. The protection device for preventing spinal nerve compression is arranged between the inner wall of a spinal canal of a spinal column (3) and the spinal nerve and is characterized by comprising a protection sleeve (1) and a fixing frame (2), wherein the protection sleeve (1) comprises an inner arc plate (11) and an outer arc plate (12), an operation opening (31) leading into the spinal canal is formed in one side, close to a spinous process (32), of the spinal column (3), the inner arc plate (11) is inserted between one side, far away from the operation opening (31), of the spinal nerve and the inner wall of the spinal canal, one end of the outer arc plate (12) is detachably connected with one end of the inner arc plate (11), and the other end of the outer arc plate (12) is detachably connected with the other end of the inner arc plate (11); the fixing frame (2) is fixedly connected to the spine (3), and the protective sleeve (1) is detachably connected with the fixing frame (2).
  2. 2. The device for preventing spinal nerve compression according to claim 1, wherein one end of the outer arc plate (12) is provided with a clamping groove along the axial direction of the protective sleeve (1), the other end of the outer arc plate (12) is provided with a clamping piece, a butt joint protrusion is formed on the groove wall of the clamping groove, one end of the inner arc plate (11) is provided with a clamping strip (111) matched with the clamping groove, the other end of the inner arc plate (11) is provided with a clamping hole, and the clamping strip (111) can be inserted into the clamping groove from one end port of the clamping groove and butt-joint with one side, facing away from the notch of the clamping groove, of the butt joint protrusion, and the clamping piece can be inserted into the clamping hole to be clamped with the clamping hole.
  3. 3. The device according to claim 2, wherein the locking members comprise a pair of locking bars (121), one end of each locking bar (121) is connected to the outer arc plate (12), locking protrusions are formed on the other end of each locking bar (121), the two locking protrusions protrude in directions away from each other, and when the locking members are locked to the locking holes, the inner arc plate (11) is limited between each locking protrusion and the outer arc plate (12); The outer arc plate (12) is far away from the one end department of card switch-on groove has still offered spacing hole, the one end department of keeping away from on the built-in arc plate (11) joint strip (111) is equipped with stopper (112) the joint spare with when the joint hole joint, stopper (112) can insert to in the spacing hole with the pore wall butt in this spacing hole, and restriction joint strip (111) are followed the axial of protective sheath (1) slides away from the card switch-on groove.
  4. 4. A protection device for preventing spinal nerve compression according to claim 3, wherein the fixing frame (2) comprises an outer connecting sleeve (21), an outer connecting bolt (22), an inner connecting sleeve (23), an inner connecting bolt (24), two connecting rods (25) and a plurality of bone connecting rods (26), wherein the two connecting rods (25) are arranged at intervals in parallel along the axial direction of the protecting sleeve (1), each connecting rod (25) corresponds to at least one bone connecting rod (26), one end of each bone connecting rod (26) is connected with one side, close to a spinous process (32), of the spine (3), the other end of each bone connecting rod (26) is connected with the corresponding connecting rod (25), the outer connecting sleeve (21) is sleeved on one rod body of the two connecting rods (25) and provided with an outer connecting hole along the radial direction of the connecting rod (25), the inner connecting sleeve (23) is sleeved on the other rod body of the two connecting rods (25) and provided with an inner connecting hole along the radial direction of the connecting rod (25), the inner connecting rod body (21) is connected with an inner connecting hole (21) leading to the outer connecting sleeve (22), the inner connecting sleeve (23) is provided with an inner connecting hole leading to the outer connecting hole, the inner connecting bolt (24) can be in threaded connection with the inner threaded hole; the external arc plate (12) is far away from an external connecting rod (122) is hinged to the outer wall of one side of the spine (3), one end, far away from a hinge shaft, of the external connecting rod (122) can be inserted into the external connecting hole and abutted between the external connecting bolt (22) and the hole wall of the external connecting hole, the internal arc plate (11) is far away from an internal connecting rod (113) is hinged to the outer wall of one side of the spine (3), and one end, far away from the hinge shaft, of the internal connecting rod (113) can be inserted into the internal connecting hole and abutted between the internal connecting bolt (24) and the hole wall of the internal connecting hole.
  5. 5. The device for protecting spinal nerve compression according to claim 4, wherein the bone rod (26) comprises a bone screw (261), a fixed tube (262) and a fixed bolt (263), a fixed convex ring and internal threads matched with the fixed bolt (263) are formed inside the fixed tube (262), a screw tip of the bone screw (261) can be inserted into the spine (3) through the fixed convex ring and is in threaded connection with the spine (3) and is abutted between a screw end of the bone screw (261) and the spine (3), a fixed through hole is formed in a tube body of the fixed tube (262) along the axial direction of the protective sleeve (1), the connecting rod (25) is arranged in the corresponding fixed through hole in a penetrating mode, and the connecting rod (263) can be in threaded connection with the internal threads of the fixed tube (262) and is abutted between the fixed bolt (263) and a hole wall of the fixed through hole.
  6. 6. The device according to claim 5, wherein the fixing bolt (263), the outer connecting bolt (22) and the inner connecting bolt (24) are flat-end fastening screws, the screw end of the fixing bolt (263) is positioned in the fixing tube (262), the screw end of the outer connecting bolt (22) is positioned in the outer connecting sleeve (21), and the screw end of the inner connecting bolt (24) is positioned in the inner connecting sleeve (23).
  7. 7. The device for preventing spinal nerve compression according to claim 1, wherein the inner arc plate (11) and the outer arc plate (12) are made of non-metal materials.
  8. 8. The device according to claim 3, further comprising a guide assembly (4), wherein the guide assembly (4) comprises a guide sleeve (41), a guide wire (42) and a winding unit (43), a guide long hole leading to the inside of the guide sleeve (41) is formed on the sleeve body of the guide sleeve (41), one end of the guide long hole extends to the sleeve opening of the guide sleeve (41) to form an opening, a fixing protrusion (411) is formed on the hole wall of the guide long hole at the opening, a fixing hole matched with the fixing protrusion (411) is formed on the built-in arc plate (11), the plate surface of the built-in arc plate (11) can be inserted into the guide long hole from the opening of the guide long hole, the clamping strip (111) is inserted into the guide sleeve (41), when the clamping strip (111) is inserted into the guide sleeve (41), the fixing protrusion (411) is inserted into the fixing hole and can be prevented from being separated from the guide wire (41) and can be removed from the inside of the guide tube (31) and the other end of the guide wire (42) can be removed from the inside the guide sleeve (41), and the winding unit (41) can be removed from the inside the guide wire (42), the winding unit (43) can wind the guide wire (42) and enable the guide wire (42) to drive the guide sleeve (41) to drive the built-in arc plate (11) to move to a position between one side, far away from the operation opening (31), of the spinal nerve and the inner wall of the vertebral canal.
  9. 9. The device for protecting spinal nerve compression according to claim 8, wherein the winding unit (43) comprises a grab handle (431), a winding motor (432), a control switch (433), a winding wheel (434), a winding block (435) and a compression bolt (436), wherein the winding motor (432) and the control switch (433) are both arranged on the grab handle (431), the control switch (433) is electrically connected with the winding motor (432) and can control the winding motor (432) to start and stop, the winding wheel (434) is rotationally connected on an output shaft of the winding motor (432), a winding block (435) is arranged on a wheel surface of the winding wheel (434) and is provided with a plug hole along the radial direction of the winding wheel (434), one end of the winding wheel, which is far away from the guide sleeve (41), can be inserted into the plug hole, a winding screw hole leading into the plug hole is formed on the winding block (436), and the winding block (435) can be in threaded connection with the winding wire and can abut against the plug hole wall of the bolt.
  10. 10. The device according to claim 9, wherein the grip (431) is provided with anti-slip patterns (4311).

Description

Protection device for preventing spinal nerve compression Technical Field The application relates to the technical field of medical devices, in particular to a protection device for preventing spinal nerve compression. Background The spinal nerve compression protecting device is one kind of medical instrument for protecting dural sac and spinal nerve in spinal surgery. In spinal tumor resection, it is often necessary to resect the diseased vertebral body or tumor tissue, followed by placement of a protective structure around the dural sac to isolate and resist compression that may result from tumor recurrence. The existing spinal nerve compression protection device generally comprises an artificial vertebral canal sleeve and a fixing device, when in operation, a main cutter firstly breaks apart the artificial vertebral canal sleeve to form a belt shape, one end of the belt-shaped artificial vertebral canal bypasses spinal nerves to be protected, two ends of the belt-shaped artificial vertebral canal are sutured together by a needle line, and finally the artificial vertebral canal is fixed on vertebrae through fixing devices such as a transverse connector, a nail rod and the like. However, the suture and fixation of the banded artificial vertebral canal requires a lot of time waste at the incision of the operated person, so that the device has complex installation process and high operation difficulty in the actual operation. In view of this, it is desirable to provide a protective device that prevents spinal nerve compression. Disclosure of Invention The application provides a protection device for preventing spinal nerve compression, which aims to solve the problems that the existing spinal nerve compression protection device is complex in installation process and high in operation difficulty in actual operation. The application provides a protection device for preventing spinal nerve compression, which adopts the following technical scheme that the protection device comprises a protection sleeve and a fixing frame, wherein the protection sleeve comprises an inner arc plate and an outer arc plate, an operation opening leading into a vertebral canal is formed in one side of a spine, which is close to a spinous process, the inner arc plate is inserted between one side of the spinal nerve, which is far away from the operation opening, and the inner wall of the vertebral canal, one end of the outer arc plate is detachably connected with one end of the inner arc plate, and the other end of the outer arc plate is detachably connected with the other end of the inner arc plate; the fixing frame is fixedly connected to the spine, and the protective sleeve is detachably connected with the fixing frame. Through adopting above-mentioned technical scheme, this protection device's protective sheath comprises built-in arc board and external arc board, and the two can dismantle the connection, is convenient for install and adjust according to actual operation condition. The built-in arc plate is inserted between one side of the spinal nerve far away from the operation opening and the inner wall of the vertebral canal, and the external arc plate is connected with the spinal nerve to encircle the spinal nerve, so that the compression caused by tumor recurrence can be effectively prevented, paraplegia caused by spinal nerve compression can be avoided, and the life quality of a patient with spinal tumor can be improved. The fixing frame is fixed on the backbone, and the protective sheath can be dismantled with the fixing frame and be connected, makes the protective sheath installation firm. Compared with the prior art, the existing spinal nerve compression protection device needs to disassemble and suture the artificial spinal canal sleeve when being installed, the operation is complex and difficult, the protection device is in detachable connection with the external arc plate through the built-in arc plate, complex suture operation is not needed, the operation process is simplified, the operation difficulty is reduced, and the installation is more stable. Specifically, the one end of external arc board is followed the axial of protective sheath has been seted up the card and has been put through the groove, the other end of external arc board is equipped with the joint spare, be formed with the butt arch on the cell wall in card put through the groove, the one end of built-in arc board be equipped with the joint strip of card put through the groove looks adaptation, the joint hole has been seted up to the other end of built-in arc board, the joint strip can follow the one end port in card put through the groove inserts to this card put through the inslot, and with the butt is protruding on the back of one side butt in card put through the groove notch, the joint spare can insert in the joint hole with this joint hole joint. By adopting the technical scheme, the external arc plate and the internal arc plate are detachably con