CN110368146A - A kind of rotary opening formula Invasive lumbar fusion device - Google Patents

A kind of rotary opening formula Invasive lumbar fusion device Download PDF

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Publication number
CN110368146A
CN110368146A CN201910630880.3A CN201910630880A CN110368146A CN 110368146 A CN110368146 A CN 110368146A CN 201910630880 A CN201910630880 A CN 201910630880A CN 110368146 A CN110368146 A CN 110368146A
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China
Prior art keywords
fusion device
transmission
upper body
invasive lumbar
rotary opening
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CN201910630880.3A
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CN110368146B (en
Inventor
牟国良
何强龙
徐淑芬
彭伟
方晓斌
汪庆
朱伟强
杜永杰
刘政磊
许吉锋
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Zhejiang Ke Hui Medical Treatment Equipment Co Ltd
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Zhejiang Ke Hui Medical Treatment Equipment Co Ltd
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Priority to CN201910630880.3A priority Critical patent/CN110368146B/en
Publication of CN110368146A publication Critical patent/CN110368146A/en
Priority to PCT/CN2020/074762 priority patent/WO2021008132A1/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention belongs to the field of medical instrument technology, more particularly to a kind of rotary opening formula Invasive lumbar fusion device, including fusion device upper body, fusion device lower body, transmission body and transmission screw, fusion device upper body offers the first circular groove close to fusion device lower body one end end face, fusion device lower body offers the second circular groove close to fusion device upper body one end end face, fusion device upper body and fusion device lower body are hinged in " X " type by transmission body, first circular groove and the combination of the second circular groove constitute the cavity for accommodating transmission body and being driven screw, fusion device lower body is fixedly connected with the lower end of transmission body, fusion device upper body and transmission body upper end are rotatablely connected, the threaded hole to match with transmission screw is offered on fusion device upper body, transmission screw free end is connected in transmission body.The purpose is to: when overcoming the shortcomings of that wound is big, pain is serious, recovery time is long after single fusion device implantation in the prior art, or being implanted into multiple fusion devices, problem complicated for operation, operating time is long, stability is insufficient.

Description

A kind of rotary opening formula Invasive lumbar fusion device
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of rotary opening formula Invasive lumbar fusion device.
Background technique
It is well known that backbone retrogression is common on Orthopedic Clinical, degeneration of intervertebral disc common are, spinal canal stenosis, Spondylolisthesis, oppressing spinal cord or nerve root person often needs operative treatment, thoroughly releases compressing, restores vertebra physiological camber, ensures ridge Column is stablized.Another part deformity of spine, wound, tumour, reprocessing operation and infected patient sometimes also needs to carry out interbody fusion To stablize lumbar motion segment.Invasive lumbar fusion device has a better effect for the above spinal disease, easy to operate, easy to use, melts Conjunction rate is high, the complication of no bone grafting fusion, through it is commonly used with it is clinical, be by one or more intervertebral by the way of Fusion device is inserted in interverbebral disc, and disc height is effectively strutted and restore, and makes vertebral fusion up and down.
In order to ensure postoperative, there is good initial stability between two lumbar motion segments, generally requires one volume of implantation Biggish fusion device, in fusion device implantation process, since fusion device volume is larger, to need to cut biggish wound in art Mouthful, this will be unfavorable for the post-operative recovery of patient.
And it is implanted into while using multiple lesser fusion devices, then to form volume enough for the mode assembled in human body The method of fusion device there is also cumbersome, asking for operating time can be extended although the size of surgical wound can be reduced Topic, and connection relationship is not present in the multiple fusion devices being implanted between each other, and position positioning is inaccurate, likewise results in centrum not Surely.
Summary of the invention
The purpose of the present invention is: it is intended to provide a kind of rotary opening formula Invasive lumbar fusion device, overcomes single in the prior art melt The deficiency that wound is big, pain is serious, recovery time is long after clutch implantation, or when being implanted into multiple fusion devices, when complicated for operation, operation Between long, problem that stability is insufficient.
To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:
A kind of rotary opening formula Invasive lumbar fusion device, including fusion device upper body, fusion device lower body, transmission body and transmission screw, The fusion device upper body and fusion device lower body are Z-shape, and the fusion device upper body is opened in the middle part of the end face of fusion device lower body one end Equipped with the first circular groove, the fusion device lower body offers the second circular groove in the middle part of one end end face of fusion device upper body, The fusion device upper body and fusion device lower body are hinged in " X " type by transmission body, and first circular groove and the second circle are recessed Slot combination constitutes the cavity for accommodating transmission body and being driven screw, and the fusion device lower body is fixedly connected with the lower end of transmission body, institute It states fusion device upper body and transmission body upper end to be rotatablely connected, the screw thread to match with transmission screw is offered on the fusion device upper body Hole, the transmission screw free end are connected in transmission body.
It further limits, the transmission body includes circular shaft, connecting column and connected unit, and the diameter dimension of the connecting column is big In the diameter dimension of circular shaft.Such structure design, is supported fusion device upper body and fusion device lower body by connecting column, So that space can be formed between fusion device upper body and fusion device lower body, to accommodate transmission screw.
It further limits, the axis hole to match with circular shaft, the circular shaft and axis is offered on the fusion device upper body Hole is clearance fit, and the connecting hole to match with connected unit, the connected unit and connecting hole are offered on the fusion device lower body For interference fit.Such structure design, transmission body pass through clearance fit, connected unit and company between circular shaft and axis hole respectively The interference fit between hole is connect, completion is rotatably connected with fusion device upper body, with being fixedly connected for fusion device lower body.
It further limits, the connected unit is hexagonal prisms, and the connecting hole is the hexagon ring being interference fitted with connected unit.This The structure of sample designs, and by the connected unit of hexagonal prisms and the interference fit of hexagon ring, completes between transmission body and fusion device lower body Be fixedly connected, relative to cylindrical connected unit, the connected unit of hexagonal prisms, which has, higher circumferentially rotates bearing capacity.
It further limits, integrally formed with transverse process block on the connecting column, transverse process block free end is in connecting column axis The vertical direction of line offers U-shaped card slot, and the transmission screw includes that threaded rod, round bar and the card to match with U-shaped card slot are set End, the threaded rod are screwed onto threaded hole.Such structure design, transmission screw set the U that end is connected to transmission body by card In type card slot, when installation, card is directly set end and is caught in from the free end of U-shaped card slot, structure is simple, easy for installation.
It further limits, the transverse process block is arc-shaped.Such structure design, it is possible to increase the adjustable range of transmission body, i.e., Increase the folding angular range between fusion device upper body and fusion device lower body.
It further limits, U-shaped card slot cross wall section is V-shaped, and the diameter dimension that the card sets end is greater than the straight of round bar Diameter size, the card set end outer wall and offer the annular V type groove to match with U-shaped card slot.Such structure design, passes through cross wall The V-shaped U-shaped card slot in section and the card for offering annular V type groove set end and match, so that card sets end and is fastened in U-shaped card slot, When being driven screw rotation, the rotation of fusion device lower body is more smooth.
It further limits, the threaded rod free end offers hexagonal blind hole.Such structure design, can be pulled by hexagonal Hand rotates threaded rod, so that the folding angle between fusion device upper body and fusion device lower body is adjusted, it is more convenient to use.
It further limits, the fusion device upper body is the first arcwall face of evagination, the fusion device far from threaded hole one end Lower body one end corresponding with the first arcwall face is the second arcwall face of evagination.The design of such structure, by the first arcwall face and The setting of second arcwall face enables Invasive lumbar fusion device to be more easily implanted into intervertenral space from surgical wound.
It further limits, the upper and lower end face of the fusion device upper body and fusion device lower body is equipped with broached-tooth design.
It further limits, the fusion device upper body offers notch in the upper and lower end face that threaded hole corresponds to one end.In this way Structure design, captured convenient for instrument.
Invention by adopting the above technical scheme, has the advantages that
1, not distracted Invasive lumbar fusion device is small in size, and implantation process is convenient and efficient, can pass through in vivo after being implanted into intervertenral space Rotation to transmission screw drives fusion device lower body to expand relative to fusion device upper body rotary opening, so that fusion device and centrum Soleplate comes into full contact with, to reduce the requirement performed the operation to wound size;
2, operation wound is small in implantation process, operating time is short, fusion device upper body and fusion device lower body by transmission body and Transmission screw links together, and mutual accurate positioning is postoperative to provide good initial stability.
3, Invasive lumbar fusion device, which passes through, screws the position that transmission screw adjusts transmission body, transmission body using moving in rotation with melt The linkage of clutch upper body and fusion device lower body acts on, and realizes the rotary opening of internal fusion device, thus improve operation efficiency and The stability of post-operative fusion.
Detailed description of the invention
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides;
Fig. 1 is a kind of structural schematic diagram of rotary opening formula Invasive lumbar fusion device embodiment of the present invention;
Fig. 2 is the structural representation in a kind of rotary opening formula Invasive lumbar fusion device embodiment of the present invention before Invasive lumbar fusion device implantation Figure;
Fig. 3 is the structural representation in a kind of rotary opening formula Invasive lumbar fusion device embodiment of the present invention after Invasive lumbar fusion device implantation Figure;
Fig. 4 is the structural schematic diagram of transmission body in a kind of rotary opening formula Invasive lumbar fusion device embodiment of the present invention;
Fig. 5 is the structural schematic diagram that screw is rotated in a kind of rotary opening formula Invasive lumbar fusion device embodiment of the present invention;
Main element symbol description is as follows:
Fusion device upper body 1, the first circular groove 101, the second circular groove 102, threaded hole 11, notch 110,
Fusion device lower body 2, the first arcwall face 201, the second arcwall face 202,
Transmission body 3, connecting column 30, circular shaft 31, axis hole 310, transverse process block 32, U-shaped card slot 320, connected unit 33, connecting hole 330、
Transmission screw 4, threaded rod 41, hexagonal blind hole 410, round bar 42, card set end 43, annular V type groove 430.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair Bright technical solution further illustrates.
As shown in fig. 1~fig. 5, a kind of rotary opening formula Invasive lumbar fusion device of the invention, including fusion device upper body 1, fusion The upper and lower end face of device lower body 2, transmission body 3 and transmission screw 4, fusion device upper body 1 and fusion device lower body 2 is equipped with broached-tooth design, Fusion device upper body 1 and fusion device lower body 2 are Z-shape, in attached drawing 1, the top surface of fusion device upper body 1 and the bottom surface of fusion device lower body 2 Z-shape, fusion device upper body 1 offers the first circular groove 101 in the middle part of 2 one end end face of fusion device lower body, under fusion device Body 2 offers the second circular groove 102, fusion device upper body 1 and fusion device lower body 2 in the middle part of 1 one end end face of fusion device upper body It is hinged in " X " type by transmission body 3, so that the first circular groove 101 and the combination of the second circular groove 102 constitute and accommodate transmission body 3 and transmission screw 4 cavity, fusion device lower body 2 is fixedly connected with the lower end of transmission body 3, fusion device upper body 1 in transmission body 3 End is rotatablely connected, and the threaded hole 11 to match with transmission screw 4, the clamping of transmission 4 free end of screw are offered on fusion device upper body 1 In transmission body 3.
Transmission body 3 includes from top to bottom including integrally formed circular shaft 31, connecting column 30 and connected unit 33, connecting column 30 Diameter dimension be greater than circular shaft 31 diameter dimension.Fusion device upper body 1 and fusion device lower body 2 are propped up by connecting column 30 Support is driven screw 4 so that can form space between fusion device upper body 1 and fusion device lower body 2 to accommodate.
The axis hole 310 to match with circular shaft 31 is offered on fusion device upper body 1, circular shaft 31 and axis hole 310 are gap Cooperate, the connecting hole 330 to match with connected unit 33 is offered on fusion device lower body 2, connected unit 33 and connecting hole 330 are interference Cooperation.Transmission body 3 is respectively by between clearance fit, connected unit 33 and the connecting hole 330 between circular shaft 31 and axis hole 310 Interference fit, completion is rotatably connected with fusion device upper body 1, with being fixedly connected for fusion device lower body 2.
Connected unit 33 is hexagonal prisms, and connecting hole 330 is the hexagon ring being interference fitted with connected unit 33.Pass through the company of hexagonal prisms Consecutive 33 and hexagon ring interference fit, being fixedly connected between transmission body 3 and fusion device lower body 2 is completed, relative to cylinder Connected unit 33, the connected units 33 of hexagonal prisms, which has, higher circumferentially rotates bearing capacity.
Integrally formed with transverse process block 32 on connecting column 30,32 free end of transverse process block is in the vertical direction of 30 central axes of connecting column U-shaped card slot 320 is offered, transmission screw 4 includes integrally formed threaded rod 41, round bar 42 and matches with U-shaped card slot 320 Card sets end 43, and threaded rod 41 is screwed onto threaded hole 11.Transmission screw 4 sets the U-shaped card slot that end 43 is connected to transmission body 3 by card In 320, when installation, card is directly set end 43 and is caught in from the free end of U-shaped card slot 320, structure is simple, easy for installation.
Transverse process block 32 is arc-shaped.The adjustable range of transmission body 3 can be increased, i.e. increase fusion device upper body 1 and fusion device lower body 2 Between folding angular range.
320 cross wall section of U-shaped card slot is V-shaped, and the diameter dimension that card sets end 43 is greater than the diameter dimension of round bar 42, and card sets end 43 outer walls offer the annular V type groove 430 to match with U-shaped card slot 320.Pass through V-shaped 320 He of U-shaped card slot in cross wall section The card for offering annular V type groove 430 sets end 43 and matches, so that card sets end 43 and is fastened in U-shaped card slot 320, is driven 4 turns of screw When dynamic, the rotation of fusion device lower body 2 is more smooth.
41 free end of threaded rod offers hexagonal blind hole 410.Threaded rod 41 can be rotated by die nut, thus The folding angle between fusion device upper body 1 and fusion device lower body 2 is adjusted, it is more convenient to use.
Fusion device upper body 1 is the first arcwall face 201 of evagination, fusion device lower body 2 and the first arc far from 11 one end of threaded hole The corresponding one end in shape face 201 is the second arcwall face 202 of evagination.Pass through setting for the first arcwall face 201 and the second arcwall face 202 It sets, Invasive lumbar fusion device is enabled more easily to be implanted into intervertenral space from surgical wound.
Fusion device upper body 1 offers notch 110 in the upper and lower end face of the corresponding one end of threaded hole 11.It is captured convenient for instrument.
In the present embodiment, before use, fusion device upper body 1, fusion device lower body 2, transmission body 3 and transmission screw 4 are assembled in Together, by the rotation to transmission screw 4, so that fusion device upper body 1 and fusion device lower body 2 fit together (as shown in Figure 2);
In use, Invasive lumbar fusion device is implanted into intervertenral space from the wound of patient, then by screwing transmission screw 4, drive Transmission body 3 rotates, to drive fusion device lower body 2 centered on transmission body 3, rotates relative to fusion upper body 1, to adjust fusion Folding angle between device upper body 1 and fusion device lower body 2.
A kind of rotary opening formula Invasive lumbar fusion device provided by the invention is described in detail above.Specific embodiment Illustrate to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common skill of the art , without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change It is also fallen within the protection scope of the claims of the present invention into modification.

Claims (10)

1. a kind of rotary opening formula Invasive lumbar fusion device, it is characterised in that: including fusion device upper body (1), fusion device lower body (2), pass Kinetoplast (3) and transmission screw (4), the fusion device upper body (1) offer first in the middle part of fusion device lower body (2) one end end face Circular groove (101), it is round recessed that the fusion device lower body (2) offers second in the middle part of fusion device upper body (1) one end end face Slot (102), the fusion device upper body (1) and fusion device lower body (2) are hinged in " X " type by transmission body (3), and described first is round Groove 101 and the combination of the second circular groove 102 constitute the cavity for accommodating transmission body (3) and transmission screw (4), under the fusion device Body (2) is fixedly connected with the lower end of transmission body (3), and the fusion device upper body (1) and transmission body (3) upper end are rotatablely connected, described The threaded hole (11) to match with transmission screw (4), transmission screw (4) free end card are offered on fusion device upper body (1) It connects on transmission body (3).
2. a kind of rotary opening formula Invasive lumbar fusion device according to claim 1, it is characterised in that: transmission body (3) packet Circular shaft (31), connecting column (30) and connected unit (33) are included, the diameter dimension of the connecting column (30) is greater than circular shaft (31) Diameter dimension.
3. a kind of rotary opening formula Invasive lumbar fusion device according to claim 2, it is characterised in that: the fusion device upper body (1) axis hole (310) to match with circular shaft (31) is offered on, the circular shaft (31) and axis hole (310) they are clearance fit, The connecting hole (330) to match with connected unit (33), the connected unit (33) and connection are offered on the fusion device lower body (2) Hole (330) is interference fit.
4. a kind of rotary opening formula Invasive lumbar fusion device according to claim 3, it is characterised in that: the connected unit (33) is Hexagonal prisms, the connecting hole (330) are the hexagon ring being interference fitted with connected unit (33).
5. a kind of rotary opening formula Invasive lumbar fusion device according to claim 2, it is characterised in that: on the connecting column (30) Integrally formed with transverse process block (32), vertical direction of transverse process block (32) free end in connecting column (30) central axes offers U Type card slot (320), transmission screw (4) includes threaded rod (41), round bar (42) and the card to match with U-shaped card slot (320) If holding (43), the threaded rod (41) is screwed onto threaded hole (11).
6. a kind of rotary opening formula Invasive lumbar fusion device according to claim 5, it is characterised in that: the transverse process block (32) is in Arc.
7. a kind of rotary opening formula Invasive lumbar fusion device according to claim 5, it is characterised in that: the U-shaped card slot (320) Cross wall section is V-shaped, and the diameter dimension that the card sets end (43) is greater than the diameter dimension of round bar (42), and the card sets end (43) outside Wall offers the annular V type groove (430) to match with U-shaped card slot (320).
8. a kind of rotary opening formula Invasive lumbar fusion device according to claim 1, it is characterised in that: the fusion device upper body It (1) is the first arcwall face (201) of evagination, the fusion device lower body (2) and the first arcwall face far from threaded hole (11) one end (201) corresponding one end is the second arcwall face (202) of evagination.
9. a kind of rotary opening formula Invasive lumbar fusion device according to claim 1, it is characterised in that: the fusion device upper body (1) and the upper and lower end face of fusion device lower body (2) is equipped with broached-tooth design.
10. a kind of rotary opening formula Invasive lumbar fusion device according to claim 1, it is characterised in that: the fusion device upper body (1) notch (110) are offered in the upper and lower end face of threaded hole (11) corresponding one end.
CN201910630880.3A 2019-07-12 2019-07-12 Rotary expanding type interbody fusion cage Active CN110368146B (en)

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PCT/CN2020/074762 WO2021008132A1 (en) 2019-07-12 2020-02-11 Rotary expansion type interbody fusion cage

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CN112155703A (en) * 2020-10-23 2021-01-01 江佩师 Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins
WO2021008132A1 (en) * 2019-07-12 2021-01-21 浙江科惠医疗器械股份有限公司 Rotary expansion type interbody fusion cage
CN113244027A (en) * 2021-06-25 2021-08-13 珠海维尔康生物科技有限公司 Minimally invasive fence type deformable fusion cage used under endoscope and use method thereof

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TWI784572B (en) * 2021-06-16 2022-11-21 兆峰生技股份有限公司 Spinous process expanding and supporting device and method
CN114403953B (en) * 2021-12-29 2023-06-27 首都医科大学附属北京友谊医院 UBE operation time multifunctional nerve protection apparatus
CN117204989A (en) * 2023-11-08 2023-12-12 江苏爱护佳健康科技有限公司 Lumbar interbody fusion cage with self-locking and fixing functions

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US20070260314A1 (en) * 2006-05-02 2007-11-08 Ashok Biyani Transforaminal lumbar interbody fusion cage
EP1925271A1 (en) * 2006-11-22 2008-05-28 Flexismed SA Intervertebral implant
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Publication number Priority date Publication date Assignee Title
WO2021008132A1 (en) * 2019-07-12 2021-01-21 浙江科惠医疗器械股份有限公司 Rotary expansion type interbody fusion cage
CN112155703A (en) * 2020-10-23 2021-01-01 江佩师 Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins
CN112155703B (en) * 2020-10-23 2022-09-02 江佩师 Internal fixation device for axial fusion of lumbosacral vertebrae with built-in lock pins
CN113244027A (en) * 2021-06-25 2021-08-13 珠海维尔康生物科技有限公司 Minimally invasive fence type deformable fusion cage used under endoscope and use method thereof

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Denomination of invention: A kind of rotatory braced interbody fusion cage

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Date of cancellation: 20231205

Granted publication date: 20200731

Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch

Pledgor: CANWELL MEDICAL Co.,Ltd.

Registration number: Y2022330003493

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A rotating brace type intervertebral fusion device

Granted publication date: 20200731

Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch

Pledgor: CANWELL MEDICAL Co.,Ltd.

Registration number: Y2024980000673