CN-224220294-U - External visual centrum adjusting device

CN224220294UCN 224220294 UCN224220294 UCN 224220294UCN-224220294-U

Abstract

The application discloses an external visual vertebral body adjusting device which comprises an artificial vertebral body, a holder and a handle assembly, wherein the artificial vertebral body comprises an adjuster, a rotating nut and a fixed seat, the adjuster is at least partially embedded in the fixed seat, one part of the rotating nut is sleeved on the fixed seat, the other part of the rotating nut is sleeved on the adjuster to be in threaded connection with the adjuster, a plurality of circumferentially arranged grooves are formed in the peripheral side of the rotating nut, the holder comprises an adjusting tube and the handle assembly, a plurality of adjusting columns are arranged at one end of the adjusting tube, which faces the artificial vertebral body, and are sequentially and equidistantly arranged along the circumferential direction of the adjusting tube, the adjusting columns can be matched with the grooves, the handle assembly can penetrate through the adjusting tube and is connected with the fixed seat, and the holder can drive the rotating nut to rotate relative to the fixed seat through the adjusting columns so as to drive the adjuster to move relative to the fixed seat. Through the looks adaptation of adjusting post and recess, can realize the accurate rotation regulation of artifical centrum height, ensure the artifical centrum of implantation and the primitive high phase-match of patient's pathological change centrum.

Inventors

WANG MENG
FAN GUIXIONG
LIU CHONGBING

Assignees

大博医疗科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250210

Claims (10)

1. An extracorporal visual vertebral body adjustment device, the device comprising: The artificial vertebral body comprises an adjuster, a rotating nut and a fixed seat, wherein the adjuster is at least partially embedded in the fixed seat, one part of the rotating nut is sleeved on the fixed seat, the other part of the rotating nut is sleeved on the adjuster to be in threaded connection with the adjuster, and a plurality of circumferentially arranged grooves are formed in the peripheral side of the rotating nut; the holder comprises an adjusting tube and a handle assembly, wherein one end of the adjusting tube, which faces the artificial vertebral body, is provided with a plurality of adjusting columns, the adjusting columns are sequentially and equidistantly arranged along the circumferential direction of the adjusting tube, and the adjusting columns can be matched with the grooves; the handle assembly can penetrate through the adjusting tube and is connected with the fixing seat, and the holder can drive the rotating nut to rotate relative to the fixing seat through the adjusting column so as to drive the adjuster to move relative to the fixing seat.
2. The external visual vertebral body adjusting device according to claim 1, wherein the handle assembly comprises a fixing screw and a sleeve, the sleeve and the adjusting tube are sequentially sleeved on the fixing screw, and the fixing screw can be in threaded connection with the fixing seat; The sleeve pipe orientation the one end of adjusting the post is equipped with arcuation structure, arcuation structure can with the periphery lateral wall face of fixing base laminates mutually.
3. The external visual vertebral body adjusting device according to claim 2, wherein a rotation knob is provided at an end of the fixing screw remote from the adjusting column, the rotation knob being used to rotate the fixing screw to achieve connection of the fixing screw with the fixing base.
4. The external visual vertebral body adjusting device according to claim 2, wherein a limiting ring is arranged on the inner wall surface of the sleeve, a limiting ring groove is arranged on the position corresponding to the limiting ring of the fixing screw, and the sleeve can be sleeved with the fixing screw through the clamping connection of the limiting ring and the limiting ring groove.
5. The external visual vertebral body adjusting device according to claim 1, wherein the artificial vertebral body is further provided with a locking member, and the locking member is disposed at a position of the fixing seat near the groove and below the moving direction of the adjuster.
6. The extracorporal visual vertebral body adjusting apparatus according to claim 5, wherein a knob is provided at an end of the adjusting tube away from the adjusting posts, and a plurality of first alignment members corresponding to the adjusting posts are provided on the knob; The handle assembly is provided with at least one second alignment piece at a position close to the knob, and the second alignment piece can correspond to each first alignment piece, so that the alignment condition of the groove and the locking piece can be judged through the alignment condition of the first alignment piece and the second alignment piece.
7. The extracorporal visual vertebral body adjustment apparatus of claim 6, wherein the number of first pairs of alignment members corresponds to the number of adjustment posts and/or wherein the positions of each of the first pairs of alignment members corresponds to the positions of each of the adjustment posts one-to-one.
8. The extracorporal visual vertebral body adjustment apparatus of claim 6, wherein the first alignment member is disposed on an end face of the knob facing away from the adjustment post and extends toward the central axis of the adjustment tube to be alignable with the second alignment member; And at least one second alignment member is arranged on a second alignment member starting surface formed by surrounding the central axis direction of the sleeve and the moving direction of the adjuster in a state that the second alignment member is in a plurality of second alignment members.
9. The extracorporal visual vertebral body adjustment apparatus according to claim 6, wherein a communication hole is provided on a circumferential side of the knob, the communication hole being capable of communicating with a lumen in which the adjustment tube accommodates the handle assembly; The inside of intercommunicating pore is equipped with the screw subassembly, the screw subassembly includes ball, elastic component and connecting piece, be equipped with on the outer wall surface of handle subassembly with the intercommunicating pore corresponds holds the annular, hold the annular and can supply the ball rotates.
10. The extracorporal visual vertebral body adjustment apparatus according to claim 1, wherein the artificial vertebral body is further provided with a stopper disposed on the adjuster, the stopper being capable of penetrating the adjuster to prevent the adjuster from being disengaged from the swivel nut and/or the fixing base.

Description

External visual centrum adjusting device Technical Field The application relates to the technical field of medical appliances, in particular to an in-vitro visual vertebral body adjusting device. Background The artificial vertebral body is a therapeutic means for diseases such as burst fracture of the vertebral body, kyphosis deformity, spinal tumor and the like. During surgery, the damaged or diseased vertebral body of the patient is removed and a vertebral body replacement is used for implantation to maintain normal weight bearing and physiologic curvature of the spine. In the operation, the height of the artificial vertebral body needs to be adjusted according to specific conditions so as to ensure the matching with the height of the original pathological vertebral body and prevent the condition of non-ideal recovery height and curvature of the vertebral column caused by height difference. Therefore, a new type of implant device for the artificial vertebral body is needed to improve the operation convenience of the height adjustment of the artificial vertebral body after the implantation. Disclosure of Invention Aiming at the problems in the prior art, the application aims to provide a novel holding implantation instrument for an artificial vertebral body so as to improve the operation convenience of the height adjustment of the artificial vertebral body after implantation. In order to solve the above problems, the present application provides an extracorporal visual vertebral body adjusting apparatus, comprising: The artificial vertebral body comprises an adjuster, a rotating nut and a fixed seat, wherein the adjuster is at least partially embedded in the fixed seat, one part of the rotating nut is sleeved on the fixed seat, the other part of the rotating nut is sleeved on the adjuster to be in threaded connection with the adjuster, and a plurality of circumferentially arranged grooves are formed in the peripheral side of the rotating nut; the holder comprises an adjusting tube and a handle assembly, wherein one end of the adjusting tube, which faces the artificial vertebral body, is provided with a plurality of adjusting columns, the adjusting columns are sequentially and equidistantly arranged along the circumferential direction of the adjusting tube, and the adjusting columns can be matched with the grooves; the handle assembly can penetrate through the adjusting tube and is connected with the fixing seat, and the holder can drive the rotating nut to rotate relative to the fixing seat through the adjusting column so as to drive the adjuster to move relative to the fixing seat. Preferably, the handle assembly comprises a fixing screw and a sleeve, the sleeve and the adjusting tube are sequentially sleeved on the fixing screw, and the fixing screw can be in threaded connection with the fixing seat; The sleeve pipe orientation the one end of adjusting the post is equipped with arcuation structure, arcuation structure can with the periphery lateral wall face of fixing base laminates mutually. Preferably, a rotation button is arranged at one end of the fixing screw far away from the adjusting column, and the rotation button is used for rotating the fixing screw so as to realize connection of the fixing screw and the fixing seat. Preferably, a limiting ring is arranged on the inner wall surface of the sleeve, a limiting ring groove is arranged at the position corresponding to the limiting ring of the fixing screw, and the sleeve can be sleeved with the fixing screw through the clamping connection of the limiting ring and the limiting ring groove. Preferably, the artificial vertebral body is further provided with a locking member, and the locking member is arranged at a position of the fixing seat, which is close to the groove, and is positioned below the movement direction of the adjuster. Preferably, a knob is arranged at one end of the adjusting tube far away from the adjusting column, and a plurality of first alignment members corresponding to the adjusting columns are arranged on the knob; The handle assembly is provided with at least one second alignment piece at a position close to the knob, and the second alignment piece can correspond to each first alignment piece, so that the alignment condition of the groove and the locking piece can be judged through the alignment condition of the first alignment piece and the second alignment piece. Preferably, the number of the first pair of the positioning pieces corresponds to the number of the adjusting columns, and/or the positions of the first pair of the positioning pieces correspond to the positions of the adjusting columns one by one. Preferably, the first alignment member is disposed on an end surface of the knob facing away from the adjustment column and extends toward a central axis of the adjustment tube so as to be capable of alignment with the second alignment member; And/or, along the central axis direction of the sleeve, the arc-shaped structur