CN112656458B - Fusion system device under spinal endoscopy - Google Patents

Abstract

The invention discloses a spinal endoscopic fusion system device, which comprises: the endoscope is internally matched with a fiber ring incision assembly and a posterior longitudinal ligament incision assembly; the progressive soft tissue expansion sleeve component comprises a multistage circular channel pipe fitting and a multistage square channel pipe fitting nested with the multistage circular channel pipe fitting, the fiber ring cutting component comprises a handle, a connecting piece fixed on the handle and a first cutting blade on the connecting piece, and the first cutting blade comprises a connecting section clamped with the connecting piece, a conduit section fixedly connected with the connecting section, a guide section integrally connected with the conduit section and a semi-circular cone cutting knife fixed on the guide section. According to the invention, the operation is simple, the operation process is safe, the operation under the endoscope is easy to learn and refine, and the anterior cervical vertebra single-section operation can be performed firstly, and then the multi-section operation can be performed.

Description

Fusion system device under spinal endoscope

Technical Field

The invention relates to the technical field of spinal endoscopy devices, in particular to a spinal endoscopic fusion system device.

Background

With the development of the technology, the percutaneous spinal endoscope is widely applied to the treatment of cervical spondylosis at present, and particularly to the posterior treatment of nerve-root type cervical spondylosis, and the effect is agreed by doctors and patients. In recent years, the medical application of percutaneous endoscopic assistance to the decompression fusion treatment of lumbar spinal stenosis is a fierce and well-developed in China, and the contraindications considered in the prior art are changed into indications. It has the advantages of small operation trauma, less bleeding, clear visual field, fast recovery and the like, but is not applied to anterior cervical decompression fusion operation at present, the anterior cervical decompression fusion operation is suitable for treating cervical three-segment lower lesion, it has the advantages of interstitial approach, small wound and the like, but the outside of the surgical approach is a neck blood vessel, the inside is esophagus and trachea, if the injury is caused, serious complications can be brought, under the coordination of a spinal endoscope, the fiber ring incision operation and the posterior longitudinal ligament incision operation can be carried out, but one of the difficulties of the current fiber ring cutting operation in applying endoscopic surgery is that after separating the esophageal trachea and the vascular sheath, how to effectively cut the anterior longitudinal ligament and the fibrous ring, especially to cut the fibrous ring with serious degenerative hyperplasia (anterior calcification or ossification hyperplasia covering the intervertebral space), if the fibrous ring cannot be cut to open the intervertebral space, the subsequent operation can not be carried out. However, after the cervical intervertebral disc is removed, how to effectively remove the posterior longitudinal ligament and expose the dural sac to achieve the purpose of decompression is also one of the difficulties of applying the endoscope technology to the anterior cervical fusion operation.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a spinal endoscopic fusion system device which is simple to operate and safe to set, the operation under the endoscope is easy to learn and precise, and a single-section operation can be performed firstly, and then a multi-section operation can be performed. To achieve the above objects and other advantages in accordance with the purpose of the invention, there is provided a spinal endoscopic fusion system apparatus comprising:

the system comprises an endoscope, a distraction assembly clamped on the endoscope and a soft tissue expansion sleeve assembly used for constructing a working channel, wherein a fiber ring incision assembly and a posterior longitudinal ligament incision assembly are matched and used in the endoscope;

the soft tissue dilation sleeve assembly comprises a multi-stage circular channel tube and a multi-stage square channel tube nested with the multi-stage circular channel tube, each circular channel tube of the multi-stage circular channel tube is nested with each other, and each square channel tube of the multi-stage square channel tube is nested with each other;

the fiber ring cutting assembly comprises a handle, a connecting piece fixed on the handle and a first cutting blade connected with the connecting piece, wherein the first cutting blade comprises a connecting section clamped with the connecting piece, a conduit section fixedly connected with the connecting section, a guide section integrally connected with the conduit section and a semicircular cone cutting knife fixed on the guide section;

the posterior longitudinal ligament incision component comprises a nerve dissector, a depth limiting piece sleeved on the nerve dissector and a second incision blade embedded with the nerve dissector.

Preferably, the multistage circular channel pipe fitting comprises a first-stage circular pipe fitting, a second-stage circular pipe fitting nested with the first-stage circular pipe fitting and a third-stage circular pipe fitting nested with the second-stage circular pipe fitting, and the diameters of the first-stage circular pipe fitting, the second-stage circular pipe fitting and the third-stage circular pipe fitting are respectively 1mm, 2mm and 4 mm.

Preferably, the square channel pipe fitting comprises a first-stage square pipe fitting, a second-stage square pipe fitting nested with the first-stage square pipe fitting and a third-stage square pipe fitting nested with the second-stage square pipe fitting, and the sizes of the first-stage square pipe fitting, the second-stage square pipe fitting and the third-stage square pipe fitting are respectively 6 × 8mm, 8 × 12mm and 10 × 16 m.

Preferably, the fiber ring cutting assembly further comprises a third opening blade, the third opening blade comprises a first connecting section clamped with the connecting piece, a first conduit section fixedly connected with the first connecting section, a first guide section integrally connected with the first conduit section, and a cutting blade fixed on the first guide section, the first conduit section is a fan-shaped groove, and a first cutting blade and a second cutting blade are fixedly connected to two sides of the fan-shaped groove respectively in an integrated manner.

Preferably, the fiber ring cutting assembly further comprises a fourth cutter blade, and the fourth cutter blade comprises a second connecting section clamped with the connecting piece, a second conduit section fixedly connected with the second connecting section, and an isosceles ladder cutter fixed on the second conduit section.

Preferably, the nerve detacher is an L type guide arm, the spout has been seted up on the L type guide arm, just a plurality of pawl have been seted up along the periphery to L type guide arm, limit dark and pawl phase-match, the second open the blade including the cutter arbor, set up in coarse grain and the integral type on a cutter arbor terminal surface are connected and are kept away from in the cutter arbor the cutter blade of coarse grain one end, cutter arbor and spout phase-match.

Preferably, the spreading assembly comprises a first clamping block for clamping the endoscope, a second clamping block embedded with the first clamping block, and a first connecting lug and a second connecting lug which are respectively fixed on the first clamping block and the second clamping block and are far away from one end face of the endoscope, the first connecting lug and the second connecting lug are vertically arranged on the first connecting lug and the second connecting lug and respectively communicated with the second clamping block embedded with the first clamping block, a first through hole and a second through hole are formed in the first through hole and the second through hole, and screws are respectively inserted into the first through hole and the second through hole.

Preferably, the screw is located working channel, just the screw cross section presents the semicircle, the one end that the screw is close to the centrum is equipped with the screw thread, the one end that the centrum was kept away from to the screw is established to the plain noodles, the screw thread end is equipped with first plane end along vertical direction, first plane end is parallel and level mutually with the internal surface of first grip block and second grip block.

Preferably, the first clamping block and the second clamping block are connected in a nested manner, and the distance between the first clamping block and the second clamping block is 0-6 mm.

Preferably, a first connecting rod and a second connecting rod are fixedly connected to the first connecting lug and the second connecting lug respectively, the first connecting lug and the second connecting lug can be designed to be square or hexagonal, the cross sections of the first connecting rod and the second connecting rod are matched with the first connecting lug and the second connecting lug, one end, far away from the first connecting lug, of the first connecting rod is fixedly connected with a fixed block, the fixed block is fixedly connected with a cross rod, a plurality of racks are arranged on one side face of the cross rod, a moving block is fixedly connected to the second connecting rod, and the moving block is sleeved with the cross rod.

Preferably, the moving block is movably connected with a rotating column, the rotating column is fixedly connected with a rotating handle, the rotating column is meshed with the rack, a limiting hole is formed in one side, close to the rack, of the moving block, the moving block is movably connected with a button, close to the limiting hole, and one end of the button is located in the limiting hole and is embedded with the rack.

Compared with the prior art, the invention has the beneficial effects that: the blood vessel side and the trachea and esophagus side of a working channel established by the soft tissue expansion sleeve component adopt a fixed design with radian, so that the risk of injury caused by repeated traction stimulation is avoided, the channel adopts a quasi-rectangular tubular design and is basically consistent with the shape of an intervertebral space, the efficiency of intervertebral space treatment is greatly improved, the intervertebral treatment with maximum depth, breadth and degree can be realized, the difficulty of intervertebral treatment is reduced, and meanwhile, the traction on the blood vessel and the esophagus and trachea is reduced; and endoscope one end is placed through strutting the subassembly in first engaging lug and the second engaging lug and struts the needle and be fixed in on the centrum, the damage that the trachea esophagus or the vascular position change that have avoided the endoscope to take place the position displacement at the passageway and cause, will pass through simultaneously strutting, and the one end that first engaging lug and second engaging lug are close to the centrum adopts movable design, first engaging lug and second are connected and can slide downwards when using the ware of strutting to strut, it is 0-6mm to strut the scope design, in order to reach the purpose that the constrictive intervertebral space was propped open to the restriction. The intervertebral treatment and the decompression operation are convenient, the endoscopic surgery treatment of the patient with narrow intervertebral space can be ensured, and the integral distraction component is outside the channel, so that the surgical operation is not influenced; after the working channel is established and the endoscope is fixed, the operation of the fiber ring incision component and the posterior longitudinal ligament incision component can be performed under the endoscope.

Drawings

FIG. 1 is a schematic three-dimensional view of a spinal endoscopic fusion system apparatus according to the present invention;

FIG. 2 is a schematic three-dimensional view of a soft tissue dilation sleeve assembly of an endoscopic spinal fusion system apparatus according to the present invention;

FIG. 3 is a schematic three-dimensional view of the posterior longitudinal ligament dissection component of the spinal endoscopic fusion system apparatus according to the present invention;

FIG. 4 is a three-dimensional schematic view of a third opening blade of the spinal endoscopic fusion system apparatus according to the present invention;

FIG. 5 is a schematic three-dimensional view of a fourth blade of the spinal endoscopic fusion system apparatus in accordance with the present invention;

FIG. 6 is a schematic three-dimensional view of the posterior longitudinal ligament incision assembly of the spinal endoscopic fusion system apparatus in accordance with the present invention;

FIG. 7 is a schematic three-dimensional exploded view of the posterior longitudinal ligament dissection component of the spinal endoscopic fusion system apparatus according to the present invention;

FIG. 8 is a schematic three-dimensional view of a distraction assembly of the device of the spinal endoscopic fusion system according to the invention;

fig. 9 is a three-dimensional structure diagram of a screw of the spinal endoscopic fusion system apparatus according to the present invention.

In the figure: 10. an endoscope; 20. a distraction assembly; 30. a soft tissue expansion sleeve assembly; 40. a fiber ring cutting assembly; 50. a posterior longitudinal ligament incision component; 21. a first clamping block; 22. a second clamping block; a first connection ear; 24. a second engaging lug; 25. a second connecting rod; 26. a first connecting rod; 27. a fixed block; 28. a cross bar; 29. a moving block; 210. rotating the handle; 211. rotating the column; 212. a button; a first via hole 231; 241. a second through hole; 281. a rack; 31. a first stage circular pipe; 32. a second stage circular tube; 33. a third stage circular tube; 34. a first-stage square pipe fitting; 35. a second-stage square pipe fitting; 36. a third-stage square pipe fitting; 41. a handle; 42. a connecting member; 43. a first slitting blade; 44. a third blade opening; 45. a fourth blade; 431. a connecting section; 432. a conduit section; 433, a guiding section; 434. a semicircular cone cutter; 441. a first connection section; 442. a first conduit section; 443. a first guide section; 444. a second cutting blade; 445. a first cutting blade; 451. a second connection section; 452. a second conduit section; 453. an isosceles ladder cutter; 51. nerve dissectors; 52. a second slitting blade; 53. a depth stop; an L-shaped guide bar; 512. a chute; 513. chamfering; 521. cutting a cutter rod; 522. coarse grains; 523. and (4) cutting a blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 3 and 5, an under-spinal-endoscopic fusion system device includes: the endoscope 10, press from both sides and press from both sides the subassembly 20 of strutting on the endoscope 10 and be used for constructing the soft tissue expansion sleeve subassembly 30 of working channel, the cooperation uses fibre ring to cut out subassembly 40 and posterior longitudinal ligament to cut out subassembly 50 in the endoscope 10, this soft tissue expansion sleeve subassembly 30 adopts the design of class rectangle tubulose, it is basically the same with intervertebral space shape, the efficiency of intervertebral space processing is greatly improved, and can realize the intervertebral processing of maximum depth, width and degree, when increasing intervertebral processing area, reduce the tractive to blood vessel and esophagus trachea, after the working channel is built, cooperate the endoscope 10 to work, the subassembly 20 centre gripping endoscope 10 keeps away from the one end of sight glass, then the subassembly 20 of strutting is fixed in the vertebra through the working channel that soft tissue expansion sleeve subassembly 30 established, strut the position that the vertebra needs the operation, then through the subassembly 40 of cutting out the fibre ring, The endoscopic intervertebral treatment curet, the nucleus pulposus forceps, the endoscopic vertebral lamina gun forceps and the posterior longitudinal ligament cutting assembly 50 are used for subsequent operations, the soft tissue expansion sleeve assembly 30 comprises a plurality of stages of circular channel pipe fittings and a plurality of stages of square channel pipe fittings nested with the plurality of stages of circular channel pipe fittings, each circular channel pipe fitting in the plurality of stages of circular channel pipe fittings is nested with each other, each square channel pipe fitting in the plurality of stages of square channel pipe fittings is nested with each other, after the working channel of the operation is established by the soft tissue expansion sleeve assembly 30, the working channel is placed after the stage expansion sleeve expands soft tissues, then the stage expansion sleeve is taken out step by step, the endoscope is placed, then the endoscope is placed, the operation is carried out under the endoscope, the working channel is fixed on the vertebral body by using the screw assembly of the working channel, the endoscope is connected, the endoscope is placed in the working channel for observation, and the subsequent operations are carried out in the working hole of the endoscope, the annular cutting assembly 40 comprises a handle 41, a connecting piece 42 fixed on the handle 41 and a first cutting blade 43 connected with the connecting piece 42, wherein the first cutting blade 43 comprises a connecting section 431 clamped with the connecting piece 42, a conduit section 432 fixedly connected with the connecting section 431, a guide section 433 integrally connected with the conduit section 432 and a semi-conical cutting knife 434 fixed on the guide section 433, the semi-conical cutting knife 434 is of an arc structure, the blade is arc-shaped on a sagittal plane, the length of the blade is not more than 15mm, and the annular cutting assembly can play a good prying role after a osteophyte on the cut vertebral body surface enters an intervertebral space, prop up the intervertebral space, and also can play a role of reaming nucleus pulposus to assist in treating the intervertebral space; the handle 41 adopts a T-shaped or straight-tube-shaped design, and can be matched with the connecting section 431 of the semicircular cone incision knife 434 to be locked and unlocked for replacement, so as to achieve the purposes of good holding and knocking, the posterior longitudinal ligament incision component 50 comprises a nerve detacher 51, a depth limiting piece 53 sleeved on the nerve detacher 51 and a second incision blade 52 embedded with the nerve detacher 51, the posterior longitudinal ligament is separated under the endoscope 10 through the nerve detacher 51, and then the second incision blade 52 slides along the length direction of the nerve detacher 51, so as to cut off the posterior longitudinal ligament.

Referring to fig. 2, the multistage circular passage tube member includes a first stage circular tube member 31, a second stage circular tube member 32 nested with the first stage circular tube member 31, and a third stage circular tube member 33 nested with the second stage circular tube member 32, the diameters of the first stage circular tube member 31, the second stage circular tube member 32, and the third stage circular tube member 33 are 1mm, 2mm, and 4mm, respectively, the square passage tube member includes a first stage square tube member 34, a second stage square tube member 35 nested with the first stage square tube member 34, and a third stage square tube member 36 nested with the second stage square tube member 35, the sizes of the first stage square tube member 34, the second stage square tube member 35, and the third stage square tube member 36 are 6 × 8mm, 8 × 12mm, and 10 × 16m, respectively, the soft tissue expansion sleeve assembly 30 is divided into 6 stages in total, and the previous stage circular passage tube member is circular, the trachea, the esophagus and the blood vessels are prevented from being damaged in the puncture process, the square channel pipe fitting is square (or the square edge is round), when the endoscope is used, the soft tissues of the neck are nested one stage at a first stage and expanded step by step, the trachea, the esophagus and the blood vessels are separated in a nesting mode, and the square channel and the round conversion sleeve are adopted, so that the channel can be adapted to the design of the existing round endoscope, but the depth of the round conversion sleeve is about 1/3-1/4 of the length of the sleeve, and the limit of the endoscope exploration range is reduced while the water pressure is ensured.

Referring to fig. 4, the annular incision component 40 further includes a third incision blade 44, the third incision blade 44 includes a first connecting section 441 connected to the connecting member 42 in a clamping manner, a first conduit section 442 fixed to the first connecting section 441, a first guiding section 443 connected to the first conduit section 442 in an integrated manner, and a cutting blade fixed to the first guiding section 443, the first conduit section 442 is a fan-shaped groove, a first cutting blade 445 and a second cutting blade 444 are respectively fixed to two sides of the fan-shaped groove in an integrated manner, and the first cutting blade 445 and the second cutting blade 444 are formed in an L-shape to form a square gap after cutting the annular or osteophyte twice, so as to facilitate the excision of the intervertebral disc in the next operation.

Referring to fig. 5, the fiber ring incision assembly 40 further includes a fourth cutting blade 45, the fourth cutting blade 45 includes a second connecting section 451 connected with the connecting member 42 in a clamping manner, a second conduit section 452 fixed to the second connecting section 451, and an isosceles trapezoid cutting blade 453 fixed to the second conduit section 452, the fourth cutting blade 45 is vertical, is used for narrowing the opening of the intervertebral space, and is provided with a connecting handle above, is matched with the handle, the middle part is provided with a connecting rod, the lower part is provided with a blade, the length of the blade edge of the blade surface is designed to be not more than 15mm, the extrusion or the direct cutting of nerves is avoided, meanwhile, the depth can be monitored in real time under the endoscope, the operation safety is ensured to the maximum extent, in addition, after the fourth switch blade 45 is inserted, the section of the triangle (isosceles, right angle or other triangle) can play the role of opening the intervertebral space, and meanwhile, the thinner connecting rod can swing back and forth and also play the role of opening the intervertebral space.

Referring to fig. 7, the nerve dissector 51 is an L-shaped guide rod 511, the L-shaped guide rod 511 is provided with a sliding slot 512, the L-shaped guide rod 511 is provided with a plurality of inverted teeth 513 along the periphery, the depth limiting member 53 is matched with the inverted teeth 513, the second incision blade 52 comprises a cutter bar 521, a rough texture 522 arranged on one end surface of the cutter bar 521, and a cutter blade 523 integrally connected to one end of the cutter bar 521 away from the rough texture 522, the cutter bar 521 is matched with the sliding slot 512, the cutter bar 521 moves along the sliding slot 512 along the length direction of the L-shaped guide rod 511, the depth limiting member 53 is matched with the inverted teeth 513, can slide downwards and cannot slide upwards, a certain damping is set to prevent the too fast downward sliding, a limiting hole with the same length width as the sliding slot 512 is designed, and the depth limiting member 53 is fixed on the endoscope operation hole in a sliding manner towards the ligament direction after the separation is completed, prevent that the lost hand or the son that peels off from sliding and cause nerve and spinal cord injury, rotatory back that finishes using can take out limit dark piece 53 promptly, and the width and the cutter arbor 521 of cutting blade 523 are unanimous, and length is about 5cm than the son length of peeling off, and thickness slightly is less than spout 512 width, the coarse grain 522 on cutter arbor 521 terminal surface can be slightly wider than cutting blade 523, and convenient handheld prevents the landing, and limit dark piece 53 is fixed in on the L type guide arm 511 after, cutting blade 523 is drawn slowly to limit dark piece 53 along spout 512 length direction, passes L type guide arm 511 at last, can cut off the longitudinal ligament.

Referring to fig. 8 to 9, the expanding assembly 20 includes a first clamping block 21 for clamping the endoscope 10, a second clamping block 22 engaged with the first clamping block 21, and a first connecting lug 23 and a second connecting lug 24 respectively fixed on an end surface of the first clamping block 21 and the second clamping block 22 far away from the endoscope 10, a first through hole 231 and a second through hole 241 respectively communicated with the second clamping block 22 engaged with the first clamping block 21 along a vertical direction on the first connecting lug 23 and the second connecting lug 24, a first connecting rod 26 and a second connecting rod 25 respectively fixedly connected to the first connecting lug 23 and the second connecting lug 24, a fixing block 27 fixedly connected to an end of the first connecting rod 26 far away from the first connecting lug 23, a cross bar 28 fixedly connected to the fixing block 27, a plurality of racks 281 arranged on a side surface of the cross bar 28, a moving block 29 is fixedly connected to the second connecting rod 25, the moving block 29 is sleeved with the cross rod 28, a rotating column 211 is movably connected to the moving block 29, a rotating handle 210 is fixedly connected to the rotating column 211, the rotating column 211 is meshed with the rack 281, a limit hole is formed in one side, close to the rack 281, of the moving block 29, a button 212 is movably connected to the position, close to the limit hole, of the moving block 29, one end of the button 212 is located in the limit hole and is embedded with the rack 281, the ends, far away from the cone, of the first connecting lug 23 and the second connecting lug 24 are both thick, the end, close to the cone, is thin, tissue extrusion can be reduced, the first through hole 231 and the second through hole 241 in the first connecting lug 23 and the second connecting lug 24 are both circular holes with the diameter of about 3mm, and the first through hole 231 and the second through hole 241 can both place a splayed needle with a threaded rear end at the front end in a hexagonal or square design cone hole and fix the cone, the distraction needle adopts a depth limiting design, the whole length is 12-15cm, the thread length is 12-14mm, one ends of a first clamping block 21 and a second clamping block 22, which are close to a vertebral body, are also provided with circular holes, but a movable design is adopted, when the vertebral body is distracted by rotating a handle 210, the first clamping block 21 and the second clamping block 22 can slide downwards, the distraction range is designed to be 0-6mm, the distraction of a narrow intervertebral space is achieved, intervertebral treatment and decompression operation are facilitated, the first clamping block 21 is embedded with the second clamping block 22, when the handle 210 is rotated to distract, the first clamping block 21 and the second clamping block 22 move relatively, the integrity and the closure of a channel are still kept, a side blood vessel and an esophageal trachea can be blocked outside the channel, and the width of the embedded part of the first clamping block 21 and the second clamping block 22 is 0-6 mm.

Furthermore, the screw is located working channel, and the screw cross section presents the semicircle, the one end that the screw is close to the centrum is equipped with the screw thread, the one end that the screw is kept away from the centrum is established to the plain noodles, the screw thread end is equipped with first plane end along vertical direction, first plane end and first grip block 21 and the internal surface looks parallel and level of second grip block 22.

Further, the first clamping block 21 and the second clamping block 22 are connected in a nested manner, and the distance between the first clamping block 21 and the second clamping block 22 is 0-6 mm.

Furthermore, a first connecting lug 23 and a second connecting lug 24 are respectively and fixedly connected with a first connecting rod 26 and a second connecting rod 25, the first connecting lug 23 and the second connecting lug 24 can be designed to be square or hexagonal, the cross sections of the first connecting rod 26 and the second connecting rod 25 are matched with the first connecting lug 23 and the second connecting lug 24, one end of the first connecting rod 26, far away from the first connecting lug 23, is fixedly connected with a fixed block 27, the fixed block 27 is fixedly connected with a cross rod 28, one side of the cross rod 28 is provided with a plurality of racks 281, the second connecting rod 25 is fixedly connected with a moving block 29, and the moving block 29 is sleeved with the cross rod 28.

This strut subassembly 20 is supporting to be used circular scope conversion sleeve, and the inner channel adopts circular design, and the outside passageway adopts square design, can match with above-mentioned working channel to leave "neck" in the passageway outside for obtain best water pressure control, this conversion sleeve model adopts the polytypic design, and the external diameter size scales up with 1mm, is used for with this passageway adaptation in current circular scope.

The working principle is as follows: after the soft tissue, the tracheoesophageal and the blood vessel are firstly expanded by the multi-stage casing in the soft tissue expansion sleeve component 30, working channel 20 is established, while endoscope 10 works with soft tissue expansion sleeve assembly 20, then the first clamping block 21 and the second clamping block 22 of the distraction assembly 20 are clamped at one end of the endoscope 10 close to the vertebral body, the distraction needle is fixed on the vertebral body through the first through hole 231 and the second through hole 241, and the rotating handle 210 is rotated, thereby driving the moving block 29 to move away from the fixed block 27, finally driving the second connecting rod 25 to move away from the fixed block 27, and the second connecting rod 25 is fixed on the second connecting lug 24, so that the first clamping block 21 and the second clamping block 22 move towards each other, the intervertebral space is further expanded, then, the operation through the annulotomy assembly 40 and the operation through the posterior longitudinal ligament incision assembly 50 are respectively performed in sequence.

The number of devices and the scale of the processes described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (11)

1. A spinal endoscopic fusion system device, comprising:

the endoscope comprises an endoscope (10), a distraction assembly (20) clamped on the endoscope (10) and a soft tissue expansion sleeve assembly (30) used for constructing a working channel, wherein a fibrous ring incision assembly (40) and a posterior longitudinal ligament incision assembly (50) are matched and used in the endoscope (10);

the soft tissue expansion sleeve assembly (30) comprises a plurality of stages of circular channel pipe fittings and a plurality of stages of square channel pipe fittings nested with the circular channel pipe fittings, wherein each circular channel pipe fitting in the plurality of stages of circular channel pipe fittings is nested with each other, each square channel pipe fitting in the plurality of stages of square channel pipe fittings is nested with each other, soft tissue expansion is completed, and after a working channel is established, the expansion channel pipe fittings are taken out;

the fiber ring incision component (40) comprises a handle (41), a connecting piece (42) fixed on the handle (41) and a first incision blade (43) connected with the connecting piece (42), wherein the first incision blade (43) comprises a connecting section (431) clamped with the connecting piece (42), a conduit section (432) fixedly connected with the connecting section (431), a guide section (433) integrally connected with the conduit section (432) and a semi-conical incision blade (434) fixed on the guide section (433);

the posterior longitudinal ligament incision component (50) comprises a nerve dissector (51), a depth limiting piece (53) sleeved on the nerve dissector (51) and a second incision blade (52) embedded with the nerve dissector (51).

2. The device of claim 1, wherein the multi-stage circular channel tube comprises a first stage circular tube (31), a second stage circular tube (32) nested with the first stage circular tube (31), and a third stage circular tube (33) nested with the second stage circular tube (32), and the diameters of the first stage circular tube (31), the second stage circular tube (32), and the third stage circular tube (33) are 1mm, 2mm, and 4mm, respectively.

3. The device as claimed in claim 1, wherein the square channel tube comprises a first stage square tube (34), a second stage square tube (35) nested with the first stage square tube (34), and a third stage square tube (36) nested with the second stage square tube (35), and the sizes of the first stage square tube (34), the second stage square tube (35), and the third stage square tube (36) are 6 x 8mm, 8 x 12mm, and 10 x 16m, respectively.

4. The endoendoscopic spinal fusion system device of claim 1, wherein the annulotomy assembly (40) further comprises a third opening blade (44), the third opening blade (44) comprises a first connecting section (441) clamped with a connecting piece (42), a first conduit section (442) fixedly connected with the first connecting section (441), a first guiding section (443) integrally connected with the first conduit section (442), and a cutting blade fixed to the first guiding section (443), the first conduit section (442) is a fan-shaped groove, and a first cutting blade (445) and a second cutting blade (444) are integrally fixed to two sides of the fan-shaped groove respectively.

5. The spinal endoscopic fusion system device of claim 1, wherein the annulotomy assembly (40) further comprises a fourth blade (45), the fourth blade (45) comprises a second connecting section (451) connected with the connector (42) in a clamping manner, a second conduit section (452) fixedly connected with the second connecting section (451), and an isosceles trapezoid cutter (453) fixed on the second conduit section (452).

6. The spinal endoscopic fusion system device according to claim 1, wherein the nerve dissector (51) is an L-shaped guide bar (511), the L-shaped guide bar (511) is provided with a sliding groove (512), the L-shaped guide bar (511) is provided with a plurality of inverted teeth (513) along the periphery, the depth limiting member (53) is matched with the inverted teeth (513), the second incision blade (52) comprises a cutter bar (521), a rough texture (522) arranged on one end surface of the cutter bar (521), and a cutter blade (523) integrally connected to one end of the cutter bar (521) far away from the rough texture (522), and the cutter bar (521) is matched with the sliding groove (512).

7. The spinal endoscopic fusion system device according to claim 1, wherein the distraction assembly (20) comprises a first clamping block (21) for clamping the endoscope (10), a second clamping block (22) engaged with the first clamping block (21), and a first connecting ear (23) and a second connecting ear (24) respectively fixed on one end surfaces of the first clamping block (21) and the second clamping block (22) far away from the endoscope (10), wherein the first connecting ear (23) and the second connecting ear (24) are respectively provided with a first through hole (231) and a second through hole (241) along a vertical direction and respectively communicated with the second clamping block (22) engaged with the first clamping block (21), and screws are respectively inserted into the first through hole (231) and the second through hole (241).

8. The spinal endoscopic fusion system device according to claim 7, wherein the screw is located in the working channel, and the cross section of the screw is semicircular, one end of the screw close to the vertebral body is provided with a thread, one end of the screw far away from the vertebral body is provided with a smooth surface, the threaded end is provided with a first plane end along the vertical direction, and the first plane end is flush with the inner surfaces of the first clamping block (21) and the second clamping block (22).

9. The spinal endoscopic fusion system device according to claim 8, wherein the first holding block (21) and the second holding block (22) are nested with each other, and the first holding block (21) and the second holding block (22) are separated by a distance of 0-6 mm.

10. The spinal endoscopic fusion system device according to claim 7, wherein the first connection ear (23) and the second connection ear (24) are respectively fixed with a first connection rod (26) and a second connection rod (25), the first connecting lug (23) and the second connecting lug (24) can be designed in a square or hexagonal shape, the sections of the first connecting rod (26) and the second connecting rod (25) are matched with the sections of the first connecting lug (23) and the second connecting lug (24), a fixed block (27) is fixedly connected to one end of the first connecting rod (26) far away from the first connecting lug (23), a cross bar (28) is fixedly connected on the fixed block (27), a plurality of racks (281) are arranged on one side surface of the cross bar (28), a moving block (29) is fixedly connected to the second connecting rod (25), and the moving block (29) is sleeved with the cross rod (28).

11. The spinal endoscopic fusion system device according to claim 10, wherein the moving block (29) is movably connected with a rotating column (211), the rotating column (211) is fixedly connected with a rotating handle (210), the rotating column (211) is meshed with the rack (281), a limiting hole is formed in one side of the moving block (29) close to the rack (281), a button (212) is movably connected with the moving block (29) close to the limiting hole, and one end of the button (212) is located in the limiting hole and is embedded with the rack (281).

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