CN210228339U

CN210228339U - Percutaneous spinal endoscope controller

Info

Publication number: CN210228339U
Application number: CN201920589870.5U
Authority: CN
Inventors: Zongheng Zhang; 张宗恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-04-03
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a percutaneous backbone scope helps accuse ware, relate to the medical instrument field, including fixing base and the fixed arm of being connected with this fixing base, the fixed arm is connected with the fixer, the fixer is connected with the working sleeve, the fixer includes mount and universal ring, mount one end is connected with the fixed arm, the bearing chamber has been arranged to the mount other end, this bearing chamber has interior sphere, the universal ring can rotate in the bearing chamber, the universal ring have with interior sphere complex ectosphere, the hollow passageway has been arranged to the universal ring, the working sleeve is installed in this hollow passageway and can be followed its axial rotation and/or axial displacement, the angle locking subassembly that is used for locking the universal ring is installed to the mount, the axial locking subassembly that is used for locking the working sleeve is installed to the universal ring. The utility model discloses can realize angle control simultaneously to the control of working sleeve axial, provide the controllable mechanics fulcrum of three-dimensional sound for the scope operation, make under the mirror operation such as power abrasive drilling, apparatus safer, accurate, controllable, high-efficient and laborsaving.

Description

Percutaneous spinal endoscope controller

Technical Field

The utility model relates to the field of medical equipment, in particular to percutaneous backbone scope helps accuse ware.

Background

The percutaneous spinal endoscope technology is developed along with the minimally invasive spinal surgery technology and the improvement of related instruments and equipment, particularly, the appearance of an under-mirror power abrasion drill has the advantages that the indications are continuously expanded, the intervertebral foramen in the early stage enters the intervertebral disc and then enters the vertebral plate for windowing, the lumbar disc herniation, various types of intervertebral disc herniations, lumbar spinal stenosis, cervical and thoracic disc herniations, spinal stenosis, under-mirror intervertebral fusion and the like are expanded, the good effect is obtained clinically, and the percutaneous spinal endoscope technology becomes a main minimally invasive means for treating spinal diseases. The YESS and TESSYS technologies of the early percutaneous spinal endoscopy are mainly an interventional endoscope operation mode, and the technical key points are that the percutaneous spinal endoscopy is placed into a disc through an intervertebral foramen approach working sleeve under the guidance of a C-arm image or is placed into a vertebral canal after intervertebral foramen forming to complete the operation under the endoscope, the fixing and decompression range of the tissue around the long path is limited, the working sleeve can be easily held during operation, but along with the change from the interventional operation of the percutaneous spinal endoscope through the intervertebral foramen and the approach between the vertebral plates to the operation mode of the surgical endoscope, the endoscope enters the target area layer by layer according to the anatomical structure to complete decompression, in particular to the application of posterior cervical, thoracic and lumbar spinal stenosis, the rear tissue structure is relatively thin, the fixing path of the working sleeve is short, and the window opening between the posterior vertebral plates or the unilateral approach bilateral decompression are added, so that the range of the bone window expansion is relatively larger, the working end of the working sleeve cannot be fixed, and the working sleeve can be held in the endoscope operation as a challenge. Work sleeve pipe mouth of pipe front end duck tongue portion is just as the function of drag hook, push away surrounding soft tissue through axial rotation and expose the art field for the operation under the mirror, the apparatus passageway of percutaneous backbone scope, camera system, light source system and business turn over water passageway are stock form coaxial arrangement, in the operation scope extends mouth of pipe duck tongue portion along work sleeve pipe and constructs the art field space, the operation under the mirror is accomplished under the coaxial visual mirror operation of completion of mirror mouth to the apparatus stretching out mirror mouth, the apparatus axial depth, the accurate control of rotation angle all needs to be with the endoscope as the fulcrum, the scope need use the work sleeve pipe as the fulcrum, just can accomplish the safe accurate operation of instrument under the mirror, especially the power grinds the operation of removing of windowing decompression sclerotin and is so more, work sleeve pipe's controllable core that becomes the safe accurate operation of endoscope. The percutaneous endoscope mainly takes an interventional operation mode (such as YESS technology and TESSYS technology) as a main mode, mainly takes axial operation as a main mode, the working sleeve can meet the application by controlling the axial depth and the axial duck tongue direction, the endoscopic operation enters layer by layer according to an anatomical structure along with the proposal and the application of the endoscopic surgical operation mode, the power abrasive drilling windowing bone is used for removing, the resection of the ligamentum flavum needs to be more extensive to achieve the purpose of reducing the pressure of nerve roots and spinal cords, the axial control of the working sleeve is not only needed in the operation, but also the movement of the working end of the working sleeve and the endoscope at different angles is needed to expand the pressure reduction range, namely, the angular control is needed during the axial control, and thus, new requirements are provided for the control of the working sleeve.

The working cannula is basically controlled by hands in the previous percutaneous spinal endoscopic operation, an assistant holds the working cannula by hands, 1.5-2 hours are needed for a cervical and lumbar spinal canal minimally invasive operation, the thoracic spinal canal is narrow even for more than 3 hours or longer, the working cannula is very hard to hold in the whole endoscopic precise operation, and both an operator and the assistant are challenged by physical strength and endurance; the control of the working cannula in the operation is completely controlled by an assistant and an operator, the working cannula is easy to slip out of control under excessive fatigue, and potential huge risks are formed on the spinal cord and nerve roots in front of the orifice; the handheld control of working sleeve pipe is difficult to keep axial and angle simultaneous accurate control under the coaxial operation under the mirror to during the operation under the power abrasive drilling mirror of working sleeve pipe is the fulcrum, becomes extreme technical challenge when removing the sclerotin that oppresses spinal cord, nerve root, and the spinal cord, nerve root can be damaged in the control of working sleeve pipe shift slightly, brings the potential safety hazard for percutaneous scope operation, influences the wicresoft development of percutaneous spinal scope at the narrow class disease of cervical vertebra chest lumbar vertebrae pipe even.

The fixation of the existing percutaneous spinal endoscope working sleeve has two defects: firstly, the wall of the working sleeve is externally threaded and fixed by screwing in and embedding with tissues, so that the fixing force is insufficient, the working sleeve is easy to move, the fulcrum effect of accurately operating the working sleeve cannot be guaranteed, and the working sleeve still needs to be fixed by hands of an assistant; secondly, the fixing arm of the existing percutaneous spinal endoscope is fixed in a unidirectional mode at the fixing head, the working sleeve can only be controlled in an axial direction, the depth and the axial rotation (duckbill direction of the working end of the working sleeve) of the working sleeve are controlled, the axial control cannot be realized, and the control of angular swinging can be completed at the same time.

Disclosure of Invention

The utility model aims at: the percutaneous spinal endoscope auxiliary controller can realize axial fixation of a working sleeve and angular control, provides a three-dimensional dynamic and static controllable mechanical fulcrum for endoscope operation, and enables the operation of power abrasive drilling under an endoscope, instruments (such as nucleus pulposus pincers, biting pincers, rongeur pincers, trepan under the endoscope and the like) and a plasma radio-frequency tool bit to be more labor-saving, safe, controllable, accurate and efficient.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a percutaneous backbone scope helps accuse ware, includes fixing base and the fixed arm of being connected with this fixing base, the fixed arm is connected with the fixer, the fixer is connected with the working sleeve, the fixer includes mount and universal ring, mount one end with the fixed arm is connected, the bearing chamber has been arranged to the mount other end, and this bearing chamber has interior sphere, the universal ring can the bearing chamber rotates, the universal ring have with interior sphere complex ectosphere, the universal ring has arranged hollow channel, the working sleeve is installed in this hollow channel and can be followed its axial rotation and/or axial displacement, the angle locking subassembly that is used for locking the universal ring is installed to the mount, the axial locking subassembly that is used for locking the working sleeve is installed to the universal ring.

As a further improvement of the above technical solution, the universal ring includes a fixing ring and a spherical bearing, the outer spherical surface is disposed on an outer wall of the spherical bearing, the spherical bearing is disposed with a hollow connecting cavity, the fixing ring includes a ball outer ring and a ball inner ring which are connected, the ball outer ring and the ball inner ring are both in a hollow cylindrical shape, the ball inner ring is embedded into the connecting cavity, the spherical bearing is in interference fit with the ball inner ring, and the hollow channel is disposed in the ball inner ring.

As a further improvement of the above technical solution, an outer diameter dimension of the ball outer ring is larger than an outer diameter dimension of the ball inner ring, the axial locking assembly is disposed on the ball outer ring, and the axial locking assembly includes a third threaded hole disposed on the ball outer ring and a third bolt screwed into the third threaded hole.

As a further improvement of the above technical solution, the fixing frame includes a fixing handle connected to the fixing arm, an outer ring frame connected to the fixing handle, and a bearing housing installed in the outer ring frame, and the inner spherical surface is disposed on an inner wall of the bearing housing.

As a further improvement of the above technical solution, the bearing housing is in a double-ring stepped shape, the bearing housing includes an outer ring installed in the outer ring frame and an inner ring located in the outer ring, the inner spherical surface is disposed on an inner wall of the inner ring, an upper end surface of the inner ring is lower than an upper end surface of the outer ring, and an adjustment space for the movement of the spherical bearing is provided on the upper end surface of the inner ring.

As a further improvement of the above technical solution, the angular locking assembly includes a first threaded hole disposed in the bearing housing and a first bolt that is screwed into the first threaded hole.

As a further improvement of the above technical solution, an axis of the first threaded hole is perpendicular to an axis of the fixing shank.

As a further improvement of the above technical solution, the angular locking assembly further comprises a second threaded hole disposed in the bearing housing and a second bolt which can be screwed into the second threaded hole.

As a further improvement of the above technical solution, an axis of the second threaded hole is parallel to an axis of the fixing shank.

As a further improvement of the technical scheme, the fixing handle and the outer ring frame are integrally formed, and the outer ring and the inner ring are integrally formed.

The utility model has the advantages that: the working sleeve can axially move and axially rotate in the universal ring, the depth of the working sleeve and the rotating direction of a duck tongue at a pipe opening can be adjusted, and the working sleeve can be axially locked through the axial locking component; through set up the ectosphere in the universal ring, set up interior sphere in the bearing cavity, the universal ring can rotate in the bearing cavity, can carry out the angular swing with the relative mount of working sleeve pipe, and the angular locking subassembly locks the universal ring on the accessible mount to realize the angle locking of working sleeve pipe. In the coaxial operation under the mirror, instrument, power abrasive drilling, plasma radio frequency tool bit etc. all need be with the endoscope as the fulcrum, and the scope uses working sleeve pipe as the fulcrum, and the accurate control of working sleeve pipe is safe accurate operation effective guarantee under the mirror, the utility model discloses realize to its angular control when can carrying out axial control to working sleeve pipe, provide the controllable mechanical fulcrum of three-dimensional sound for the scope operation, make under the mirror such as instrument, power abrasive drilling, plasma radio frequency tool bit operate safer, accurate, high-efficient, and more laborsaving, the working sleeve pipe does not need the assistant to control.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fixer in an embodiment of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.

Referring to fig. 1 and 2, a percutaneous spinal endoscope auxiliary control device comprises a fixed seat 11 and a fixed arm 12 connected with the fixed seat 11. Wherein, the fixing base 11 is used for fixing with the operating table, and the fixing arm 12 has three degrees of freedom, which is prior art and is not described in detail. Fixed arm 12 is connected with the fixer, the fixer is connected with work sleeve 41, the fixer includes mount 20 and universal ring 30, mount 20 one end is connected with fixed arm 12, the bearing chamber has been arranged to the mount 20 other end, this bearing chamber has interior sphere, universal ring 30 can rotate in the bearing chamber, universal ring 30 has with interior sphere complex outer sphere, the hollow passageway has been arranged to universal ring 30, work sleeve 41 installs in this hollow passageway and can follow its axial rotation and/or axial displacement, the mount 20 is installed and is used for locking the angular locking subassembly of universal ring 30, the axial locking subassembly that is used for locking work sleeve 41 is installed to universal ring 30. The bottom of the working sleeve 41 is a working end, the working end of the working sleeve 41 is provided with a mouth duck tongue, and the top of the working sleeve 41 is provided with a holding handle 42 capable of identifying the direction of the mouth duck tongue. Preferably, the fixing frame 20 includes a fixing handle 21 connected to the fixing arm 12, a U-shaped groove is disposed at one end of the fixing handle 21 connected to the fixing arm 12, the fixing handle 21 is connected to the fixing arm 12 through a bolt, before the operation, the long axis direction of the fixing frame 20 can be adjusted to be parallel to the longitudinal axis of the human body, and the fixing frame is locked by the bolt of the fixing arm 12, that is, the long axis of the fixing handle 21 is parallel to the longitudinal axis of the human body, the long axis of the fixing handle 21 is an axis in the length direction, the short axis of the fixing handle 21 is an axis in the width direction, and the long axis of the fixing.

The working sleeve 41 can axially move and axially rotate in the universal ring 30, the depth of the working sleeve 41 and the rotating direction of the duck tongue at the pipe orifice can be adjusted, the working sleeve 41 can be axially locked through the axial locking assembly, the working sleeve 41 is axially locked through the axial locking assembly, and the working sleeve 41 and the universal ring 30 are relatively static.

Set up the insert surface in the universal ring 30, set up interior sphere in the bearing cavity of mount 20, insert surface and interior sphere cooperation, universal ring 30 can rotate in the bearing cavity, can carry out the angular swing with work sleeve 41 relative mount 20, and accessible angular locking subassembly locks universal ring 30 to realize work sleeve 41's angle locking. The angular swing refers to the working sleeve 41, which can swing around the bearing cavity of the fixing frame 20 as a rotation center through the universal ring 30.

Specifically, as shown in fig. 2, the gimbal ring 30 preferably includes a fixed ring and a spherical bearing 33, an outer spherical surface is disposed on an outer wall of the spherical bearing 33, the spherical bearing 33 is disposed with a hollow connecting cavity, the fixed ring includes a ball outer ring 31 and a ball inner ring 32 that are connected, each of the ball outer ring 31 and the ball inner ring 32 has a hollow cylindrical shape, the ball inner ring 32 is embedded in the connecting cavity, the spherical bearing 33 is interference-fitted with the ball inner ring 32, and a hollow passage is disposed in the ball inner ring 32. Further, the outer diameter dimension of the ball outer ring 31 is larger than the outer diameter dimension of the ball inner ring 32, and an axial locking assembly is disposed on the ball outer ring 31, the axial locking assembly including a third threaded hole disposed on the ball outer ring 31 and a third bolt 53 screwed into the third threaded hole.

Preferably, the fixing frame 20 further includes a fixing handle 21 connected to the fixing arm 12, an outer ring frame 22 connected to the fixing handle 21, and a bearing housing installed in the outer ring frame 22, wherein the outer ring frame 22 has a ring shape, and an inner spherical surface is disposed on an inner wall of the bearing housing. The bearing outer sleeve is in an inner and outer double-ring ladder shape, the bearing outer sleeve comprises an outer ring 23 arranged in an outer ring frame 22 and an inner ring 24 positioned in the outer ring 23, an inner spherical surface is arranged on the inner wall of the inner ring 24, the upper end surface of the inner ring 24 is lower than that of the outer ring 23, and the upper end surface of the inner ring 24 is provided with an adjusting space for the movement of a spherical bearing 33, namely when the universal ring 30 rotates in the inner ring 24, the adjusting space can avoid the interference between the spherical outer ring 31 and the bearing outer sleeve, and the universal ring 30 can obtain a wider swing angle.

Further, the angular locking assembly comprises a first threaded hole arranged in the bearing housing and a first bolt 51 which can be screwed into the first threaded hole. The angular locking assembly further comprises a second threaded hole arranged in the bearing housing and a second bolt 52 which can be screwed into the second threaded hole. In this embodiment, the axis of the first threaded hole is perpendicular to the axis of the fixing shank 21, and the axis of the second threaded hole is parallel to the axis of the fixing shank 21.

Through further optimization of the angular locking assembly, the angular locking assembly can achieve long axis fixed angle locking and short axis fixed angle locking.

Specifically, the major axis fixed angle locking means that the second bolt 52 is screwed until the end of the second bolt abuts against the spherical bearing 33, the inner spherical surface of the bearing housing corresponding to the opposite side of the second bolt 52 is provided with a salient point, after the second bolt 52 is locked, the spherical bearing is fixed in the major axis direction of the fixed frame with the salient point of the inner spherical surface of the bearing housing at the opposite side, that is, the major axis fixed angle locking, the spherical bearing can only rotate along a fixed shaft formed by the second bolt 52 and the salient point, and at this time, the working sleeve 41 can only swing along the minor axis direction of the fixed frame 20, that.

The fixed-angle locking of the short shaft means that the first bolt 51 is screwed until the end part of the first bolt is abutted against the spherical bearing 33, the inner spherical surface of the bearing outer sleeve corresponding to the opposite side of the first bolt 51 is provided with a salient point, after the first bolt 51 is locked, the spherical bearing is fixed in the short shaft direction of the fixed frame, namely the fixed-angle locking of the short shaft, with the salient point of the inner spherical surface of the bearing outer sleeve at the opposite side, the spherical bearing can only rotate along a fixed shaft formed by the first bolt 51 and the salient point, and at the moment, the working sleeve 41 can only swing along the long shaft.

The fixed angle locking is long axis fixed angle locking or short axis fixed angle locking; the fixed-angle swing is long-axis fixed-angle swing or short-axis fixed-angle swing, and in the embodiment, the short-axis fixed-angle swing is realized after the long axis fixed-angle is locked, and the long-axis fixed-angle swing is realized after the short axis fixed-angle is locked.

Meanwhile, the first bolt 51 and the second bolt 52 are screwed in, and the end parts of the two bolts abut against the spherical bearing 33, so that the universal ring 30 cannot swing at any angle relative to the inner ring 24, namely the working sleeve 41 cannot swing, and angular locking is realized.

Preferably, the fixing handle 21 is integrally formed with the outer ring frame 22, the outer ring 23 and the inner ring 24 are integrally formed, and the ball outer ring 31 and the ball inner ring 32 are integrally formed.

The specific use method of the percutaneous spinal endoscope auxiliary control device is described in detail as follows:

in the first operation method, the bone is axially ground under the power-assisted grinding drill mirror by the angular locking and the axial locking of the working sleeve. In the operation, the fixing arm 12 is fixed on the operation bed through the fixing seat 11, the working cannula 41 is inserted from the hollow channel at the ball outer ring 31 end of the fixer, the working cannula 41 is placed in the operation area, the fixing frame 20 is fixed, the long axis of the fixing frame 20 is adjusted to be parallel to the longitudinal axis of the human body, and the fixing arm 12 is locked through the bolt; secondly, adjusting the working sleeve 41 to the position of pre-windowing decompression, and locking the universal ring 30 through the first bolt 51 and the second bolt 52 to perform angular locking; then, the depth of the orifice of the working sleeve 41 is adjusted, the working sleeve 41 is axially rotated, the duck tongue part of the orifice pushes away surrounding soft tissues, and then the third bolt 53 is screwed to lock the working sleeve 41, so that the depth of the orifice and the duck tongue part are fixed, and the axial locking is realized. After the angular locking and the axial locking, the working sleeve 41 is fixed at the position of the targeted decompression and the surgical field is exposed, axial bone is ground under the assisted control power abrasive drilling mirror, the working sleeve is used as a fulcrum by the endoscope in the operation, the power abrasive drilling takes the endoscope as the fulcrum, the control drill bit extends out of the pipe orifice and is ground by shallow and deep 'point type' to the bone along the axial direction of the working sleeve, or the adjustment drill bit deflects, the axial rotation abrasive drilling is carried out, the bone is ground by the drill bit 'arc line', and the power abrasive drilling is ground by the axial operation point type along the axial direction of the working sleeve and the arc bone. Percutaneous backbone scope helps accuse ware to grind for power abrasive drilling mirror axial sclerotin down and provides the mechanics fulcrum, makes the operation safer, accurate, high-efficient, and more laborsaving, does not need the assistant to control, is adapted to behind the neck way Keyhole decompression technique, intervertebral foramen approach mirror down intervertebral foramen take shape, intervertebral foramen approach root canal etc. miniatures's sclerotin grinds the decompression operation.

In the second operation method, the bone is ground at a fixed angle under the power-assisted grinding drill mirror by locking the working sleeve at a fixed angle, axially locking and swinging at the fixed angle. Specifically, the fixing arm 12 is fixed, and the working sleeve 41 is inserted into the hollow passage, in the same steps as above; secondly, after the working cannula 41 is placed in the operation area, after the orifice of the working cannula 41 is adjusted to the position corresponding to the windowing decompression long axis, the first bolt 51 is locked to fix the angle and lock the working cannula 41, the first bolt 51 forms point fixation to the spherical bearing 33 of the universal ring 30, the first bolt 51 and the salient point at the corresponding position of the inner ring 24 on the opposite side wall form a fixed shaft to the spherical bearing 33 together, and are vertical to the long axis of the fixed frame 20, namely the short axis is fixed in angle and locked, the working cannula 41 can only rotate around the axis of the first bolt 51, and the working cannula 41 swings with the long axis in fixed angle; then, the depth of the orifice of the working sleeve 41 is adjusted, the working sleeve 41 is axially rotated, the duck tongue part of the orifice pushes away surrounding soft tissues, and then the third bolt 53 is screwed to lock the working sleeve 41, so that the depth of the orifice and the duck tongue part are fixed, and the axial locking is realized. The angle-fixed locking, the axial locking and the angle-fixed swinging of the working sleeve 41 are used for assisting in controlling the grinding of the bone in the downward direction of the power grinding drill mirror, the working sleeve is used as a fulcrum by the endoscope in the operation, the power grinding drill is used as the fulcrum by the endoscope, the working sleeve 41 performs the fixed angle swinging of the long shaft around the fixed shaft where the first bolt 51 is located, and the grinding of the bone by the power grinding drill along the swinging track is the fixed angle grinding of the long shaft; if the working sleeve 41 is locked only by locking the second bolt 52 at a fixed angle, the working sleeve 41 swings around the fixed shaft of the second bolt 52 at a fixed angle in a short shaft fixed angle, and the power grinding drill grinds bone along the swinging track, namely grinds bone at the fixed angle in the short shaft fixed angle, which is mainly suitable for grinding and decompressing bone with a wider window such as cervical, thoracic and lumbar spinal stenosis vertebral plate windowing, unilateral approach bilateral decompression and the like. The bone is ground at a fixed angle under a power grinding drill mirror, namely the fixed angle of a long shaft or the fixed angle of a short shaft.

Thirdly, the working sleeve is axially locked and angularly swung, so that the power-assisted grinding drill mirror is used for grinding bone downwards. Specifically, the fixing arm 12 is fixed, and the working sleeve 41 is inserted into the hollow passage, in the same steps as above; secondly, after the working cannula 41 is placed in the operation area, the working cannula 41 is axially locked through a third bolt 53, the depth of the working cannula is fixed, and at the moment, the first bolt 51 and the second bolt 52 are not locked; the working sleeve uses the spherical bearing as a rotating shaft, can perform angular swing in different directions, provides a dynamic mechanical fulcrum for the operation under the endoscope of the power abrasive drill, and the power abrasive drill abrades bone along a swing track, namely angularly abrades the bone, and the dynamic abrasive drill is used as supplement of axial abrasion and fixed angle abrasion.

According to the range, angle, depth and the like of windowing pressure reduction bone grinding, after the depth of the working sleeve 41 is locked axially by the fixator, the working sleeve 41 needs to be continuously converted into angular locking, fixed angle locking, angular swinging and the like in clinical operation, so that the axial bone grinding, the angular bone grinding, the fixed angle bone grinding and the like under the power abrasive drilling mirror are performed alternately, and the operation under the power abrasive drilling mirror is more flexible, safe, controllable, accurate, efficient and labor-saving.

Fourthly, the working sleeve is axially locked and angularly swung, so that the operation under the microscopes such as nucleus pulposus forceps, biting forceps, vertebral plate bone biting lead, plasma radio frequency cutter head and the like is safer, more accurate, controllable and labor-saving. Specifically, the fixing arm 12 is fixed first, and the steps are the same as the above; secondly, after the working cannula 41 is placed in the operation area, the depth of the working cannula 41 is axially locked through the third bolt 53, at the moment, the first bolt 51 and the second bolt 52 are not locked, the working cannula 41 can swing in all directions by taking the spherical bearing 33 as a rotating shaft, a dynamic mechanical fulcrum is provided for the operation under the endoscope of the instrument, the endoscope can swing in different decompression and operation directions by taking the working cannula as the fulcrum in the operation, the instrument operation takes the endoscope as the fulcrum, so that the operation of the instrument under the endoscope is safer, more accurate and more efficient, labor-saving, and does not need to be held by an assistant.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. The utility model provides a percutaneous backbone scope helps accuse ware, includes fixing base (11) and fixed arm (12) of being connected with this fixing base (11), its characterized in that: fixed arm (12) are connected with the fixer, work sleeve pipe (41) is connected to the fixer, the fixer includes mount (20) and universal ring (30), mount (20) one end with fixed arm (12) are connected, the bearing chamber has been arranged to mount (20) other end, and this bearing chamber has interior sphere, universal ring (30) can the bearing chamber rotates, universal ring (30) have with interior sphere complex outer sphere, the cavity passageway has been arranged to universal ring (30), work sleeve pipe (41) are installed in this cavity passageway and can be followed its axial rotation and/or axial displacement, the angle locking subassembly that is used for locking universal ring (30) is installed to mount (20), the axial locking subassembly that is used for locking work sleeve pipe (41) is installed to universal ring (30).

2. The percutaneous spinal endoscope auxiliary control device according to claim 1, characterized in that: the universal ring (30) comprises a fixing ring and a spherical bearing (33), the outer spherical surface is arranged on the outer wall of the spherical bearing (33), the spherical bearing (33) is provided with a hollow connecting cavity, the fixing ring comprises a ball outer ring (31) and a ball inner ring (32) which are connected, the ball outer ring (31) and the ball inner ring (32) are both in a hollow column shape, the ball inner ring (32) is embedded into the connecting cavity, the spherical bearing (33) is in interference fit with the ball inner ring (32), and the hollow channel is arranged in the ball inner ring (32).

3. The percutaneous spinal endoscope auxiliary control device according to claim 2, characterized in that: the outer diameter of the outer ball ring (31) is larger than the outer diameter of the inner ball ring (32), the axial locking assembly is arranged on the outer ball ring (31), and the axial locking assembly comprises a third threaded hole formed in the outer ball ring (31) and a third bolt (53) screwed into the third threaded hole.

4. The percutaneous spinal endoscope auxiliary control device according to claim 2 or 3, characterized in that: the fixing frame (20) comprises a fixing handle (21) connected with the fixing arm (12), an outer ring frame (22) connected with the fixing handle (21) and a bearing outer sleeve arranged in the outer ring frame (22), and the inner spherical surface is arranged on the inner wall of the bearing outer sleeve.

5. The percutaneous spinal endoscope auxiliary control device according to claim 4, characterized in that: the bearing outer sleeve is in an inner and outer double-ring ladder shape, the bearing outer sleeve comprises an outer ring (23) arranged in an outer ring frame (22) and an inner ring (24) located in the outer ring (23), the inner spherical surface is arranged on the inner wall of the inner ring (24), the upper end surface of the inner ring (24) is lower than the upper end surface of the outer ring (23), and the upper end surface of the inner ring (24) is provided with an adjusting space for the movement of the spherical bearing (33).

6. The percutaneous spinal endoscope auxiliary control device according to claim 4, characterized in that: the angular locking assembly comprises a first threaded hole arranged in the bearing outer sleeve and a first bolt (51) which can be screwed into the first threaded hole.

7. The percutaneous spinal endoscope auxiliary control device according to claim 6, characterized in that: the axis of the first threaded hole is perpendicular to the axis of the fixing handle (21).

8. The percutaneous spinal endoscope auxiliary control device according to claim 7, characterized in that: the angular locking assembly further comprises a second threaded hole arranged in the bearing outer sleeve and a second bolt (52) which can be screwed into the second threaded hole.

9. The percutaneous spinal endoscope auxiliary control device according to claim 8, characterized in that: the axis of the second threaded hole is parallel to the axis of the fixing handle (21).

10. The percutaneous spinal endoscope auxiliary control device according to claim 5, characterized in that: the fixing handle (21) and the outer ring frame (22) are integrally formed, and the outer ring (23) and the inner ring (24) are integrally formed.