CN203749544U - Minimally invasive thoracolumbar posterior percutaneous internal fixation system - Google Patents
Minimally invasive thoracolumbar posterior percutaneous internal fixation system Download PDFInfo
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- CN203749544U CN203749544U CN201420058663.4U CN201420058663U CN203749544U CN 203749544 U CN203749544 U CN 203749544U CN 201420058663 U CN201420058663 U CN 201420058663U CN 203749544 U CN203749544 U CN 203749544U
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- dilator
- fixation system
- internal fixation
- pressurizing device
- adapter
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Abstract
The utility model discloses a minimally invasive thoracolumbar posterior percutaneous internal fixation system which comprises internal implants and corresponding surgical instruments. The internal implants include a pedicle screw and a preliminarily bent connecting rod, and the corresponding surgical instruments include an extension needle, a distraction presser, a puncture needle, a guide needle, an expansion cannula, a long and hollow open device, a drill, a hollow screw tap, a detector, a screw feeder, a rod holder, a press sleeve, a funnel, a hollow first dilator, a second dilator, a third dilator and a percutaneous pedicle bone grafting channel. The minimally invasive thoracolumbar posterior percutaneous internal fixation system has the advantages that the pedicle screw can be effectively fixed during surgery, the distraction distances can be accurately measured during distraction reduction, distraction degrees can be accurately judged, accordingly, excessive distraction or insufficient distraction can be prevented, and the bone grafting surgery can be assuredly carried out.
Description
Technical field
This utility model relates to spinal surgery technical field of medical instruments, is specifically related to a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system.
Background technology
Spinal segments shakiness, sclerite or disc tissue displacement that lumbar vertebra compression fracture causes, can oppress dural sac or nerve root, causes nervous symptoms.With patient nervous symptoms or that fracture compression is heavier, usually need operative treatment.The object of operative treatment is stabilizing spine, recovers height and the spinal canal decompression of vertebral body, reduces neural compressing.Classical modus operandi is that posterior transpedicle adopts the excellent pedicle screw system of nail to carry out interior fixing at present.
In pedicle screw, technique for fixing is a very ripe spinal surgery technology, is widely used.The technology of minimal invasion pedicle screw system is in recent years applied to clinical, and wound is little, it is fast to lose blood less, recover, and obtains certain curative effect.Publication number is that the patent document of CN 102973314 A discloses a kind of thoracic and lumbar vertebral posterior Wicresoft bone cement spinal internal fixation system, this internal fixation system provides a kind of minimal invasion pedicle screw-rod internal fixation system, comprise pedicle screw, the vertical rod that connects of pre-bending, jackscrew, the corresponding operating theater instruments of stating is puncture needle, puncture needle sleeve pipe, tip guide pin, spherical guide pin, hollow gag, dilator, hollow boring bit, hollow screw tap, opening screw stretcher, the screw stretcher of remaining silent, screw mounting seat, screw mounting guide sleeve, opening screw stretcher sleeve pipe, stretcher locking wrench, in hollow, follow closely device, bone cement injector, rod measuring device, hold excellent device, rod locker, push rod device, fascia separator, plug screw is held and is got device, prelum, crow bar, antitorque spanner, final impact wrench.; Wherein, described pedicle screw, comprise rivet nut, nail seat, two broken long-armed and plug screws, rivet nut is connected with nail seat, article two, brokenly long-armedly in nail seat, form U shape structure to being on the spot fixedly connected on, be used for embedding pre-bending pitman, two broken long-armed extending to outside skin incision, plug screw compresses the vertical rod that connects for being screwed into two broken long-armed U shape structures.Although the pedicle screw that unfolding pressurizing device of the prior art can complete in Minimally Invasive Surgery is fixed, for example, but (in bone grafting process) can not obtain good fixed effect in practical operation, should in operation, go and can not accurately judge by unfolding pressurizing device and compressive sleeve the distance strutting when support resets simultaneously.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system, in operation, not only can well fix pedicle screw, effectively by compressed vertebral distraction reduction, and can go and support the distance that while reset, Measurement accuracy struts, accurately judgement struts degree, prevented support and strutted deficiency, and also can ensure the carrying out of bone grafting operation simultaneously.
A kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system, include implant and corresponding operating theater instruments, corresponding operating theater instruments comprises puncture needle, guide pin, expanded casing, vast sky heart open circuit device, cone, hollow screw tap, sounder, upper nail device, the first dilator of holding excellent device, funnel, inner hollow and the second dilator.
Described implant includes pedicle screw and pre-bending pitman, the nail seat that described pedicle screw connects by screw rod, with screw rod upper end and the U-shaped arm that is connected in nail seat upper end form, on described screw rod, be provided with multiple perforates, the inner chamber UNICOM of the YuUXing Bei bottom, inner chamber upper end of described nail seat and lower end and screw rod inner chamber are connected.
Described corresponding operating theater instruments also includes unfolding pressurizing device, compressive sleeve, percutaneous cone nut bone grafting passage, the 3rd dilator and bone cement and injects adapter, described unfolding pressurizing device is made up of symmetrically arranged two unfolding pressurizing device bodies, described unfolding pressurizing device body is made up of handle section, bending segment and pressurized segment, the bending segment intersection of two unfolding pressurizing device bodies is flexibly connected, and on the bending segment of unfolding pressurizing device, is provided with dip stick; Described compressive sleeve one side is provided with probe; One end of described pre-bending pitman is provided with probe positioning hole; Described percutaneous cone nut bone grafting passage and the 3rd dilator are the pipe body of up/down perforation, and the internal diameter of the pipeline of percutaneous cone nut bone grafting passage is consistent with the outer diameter tube of the 3rd dilator; Described bone cement is injected the pipe body that adapter is up/down perforation.
Described percutaneous cone end, nut bone grafting communication conduits upper end is provided with handle, and its pipeline upper end is provided with external screw thread.
The head of described the 3rd dilator is provided with handle, and the head lower end of the 3rd dilator is provided with female thread, and this female thread matches with the external screw thread on percutaneous cone nut bone grafting passage.
The inner chamber of described nail seat is the cavity that is inverted cone shape, and described screw rod inner chamber is cylindrical cavity, and described U-shaped arm inwall is provided with female thread.
The length of described nail seat is about 5mm-20mm.
One end of described dip stick is fixedly connected on the handle section on unfolding pressurizing device right side, and the other end is slidably connected with unfolding pressurizing device through the handle section in unfolding pressurizing device left side; The pressurized segment of described unfolding pressurizing device is provided with the groove consistent with pre-bending pitman internal diameter.
Described compressive sleeve one side is provided with upper bracket and undersetting, the upper end of described probe is provided with pin cap, and its lower end is through upper bracket and undersetting, and on probe, cover has spring, this spring is between upper bracket and undersetting, and the opposite side of described compressive sleeve is fixedly connected with sleeve handle.
One end of described pre-bending pitman is set to square body, and the other end is set to ellipsoid, and described probe positioning hole is arranged on pre-bending pitman and is positioned on ellipsoid.
The head that described bone cement is injected adapter is provided with handle, the head lower end that bone cement is injected adapter is provided with external screw thread, the lower end that described bone cement is injected adapter is set to cone shape, and described bone cement is injected the cylindrical cavity that is provided with up/down perforation in adapter; The external screw thread that described bone cement is injected on adapter matches with the female thread of U-shaped arm inwall, described bone cement is injected the lower end that adapter is cone shape and is matched with the cavity that is cone shape in nail seat, and it is consistent with described screw rod intracavity diameter that described bone cement is injected the internal diameter of cylindrical cavity of adapter.
The beneficial effects of the utility model are:
1, unfolding pressurizing device of the present utility model is by being laterally equipped with the installing hole consistent with pre-bending pitman internal diameter in its pressurized segment, this installing hole is connected with the nail seat of pedicle of vertebral arch screw by wearing pre-bending pitman, the handle of holding unfolding pressurizing device when both hands is moderately to pressing down, can act directly in the nail seat of pedicle of vertebral arch screw strutting plus-pressure, therefore can in Minimally Invasive Surgery, reach the effect that struts of open surgery.
2, be expert at when lumbar vertebra compression fracture percutaneous cervical arc root screw is interior to be fixed, longitudinal connecting rod is withstood in the little Guan festival-gathering of fractured vertebral body, form leverage, the operative failure that will cause nail pulling to cause with strutting difficulty, this utility model lengthens the nail seat length of pedicle of vertebral arch screw, avoid the little Guan festival-gathering of fractured vertebral body to withstand pre-bending pitman, effectively prevent nail pulling and strut difficulty, carry out smoothly thereby ensure to perform the operation.
3, in the time carrying out Minimally Invasive Surgery, the injection of bone cement can strengthen the resistance to plucking of screw and exert oneself, can effectively avoid pedicle of vertebral arch screw nail pulling, the complication such as loosening, when carrying out bone cement while injecting, only extender need be screwed into two broken U shapes long-armed in, needle point one end of extender is connected and forms a passage with screw rod inner chamber upper end, the female Luer of extender is connected to bone cement infusing device and can inject bone cement, after injecting Wangue cement, nook closing member is inserted in extender and pedicle of vertebral arch screw, by extender, in pedicle of vertebral arch screw, residual bone cement pushes in vertebral body, the extender of back-outing completes bone cement and injects, this utility model is simple in structure, assembly is few, easy to operate and safe, fixing reliable, good airproof performance.
4, be expert at when percutaneous cervical arc root screw system is interior fixedly carries out compressed fracture of thoracic vertebra and lumber vertebra operation, when row distraction reduction, can not look at the degree strutting straight, this utility model can by be arranged on that dip stick on the bending segment of unfolding pressurizing device shows strut scale and by observing the probe on prelum, when probe is fallen the probe positioning hole of the oval one end of rear contact pre-bending pitman, length according to pre-bending pitman outside pedicle of vertebral arch screw is approximately the standard of 3mm, the distance can Measurement accuracy strutting and strut degree, can effectively prevent support and strut deficiency.
5, as patient fracture compression more, this utility model can ensure that follow-up bone grafting operation carries out smoothly.
Brief description of the drawings
Fig. 1 is the structural representation of pedicle screw;
Fig. 2 is the structural representation of unfolding pressurizing device;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the syndeton schematic diagram of pedicle screw and unfolding pressurizing device;
Fig. 5 is the structural representation of the 3rd dilator;
Fig. 6 is the structural representation of percutaneous cone nut bone grafting passage;
Fig. 7 is the structural representation of compressive sleeve;
Fig. 8 is the right view of Fig. 7;
Fig. 9 is the structural representation of pre-bending pitman;
Figure 10 is the structural representation that bone cement is injected adapter.
Detailed description of the invention
Now by reference to the accompanying drawings this utility model is described in further detail.
A kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system, include implant and corresponding operating theater instruments, corresponding operating theater instruments comprises puncture needle, guide pin, expanded casing, vast sky heart open circuit device, cone, hollow screw tap, sounder, upper nail device, the first dilator of holding excellent device, funnel, inner hollow and the second dilator.
As shown in accompanying drawing 1, Fig. 4 and Fig. 9, implant includes pedicle screw 1 and pre-bending pitman 4, the nail seat 12 that pedicle screw 1 connects by screw rod 13, with screw rod upper end and the U-shaped arm 11 that is connected in nail seat upper end form, on screw rod 13, be provided with multiple perforates, the inner chamber UNICOM of the inner chamber upper end of nail seat 12 and U-shaped arm 11 bottoms and lower end and screw rod 13 inner chambers are connected, the inner chamber of nail seat 12 is the cavity that is inverted cone shape, screw rod 13 inner chambers are cylindrical cavity, U-shaped arm 11 inwalls are provided with female thread, and the length of nail seat 12 is about 5mm-20mm; One end of pre-bending pitman is provided with probe positioning hole, and one end of pre-bending pitman 4 is set to square body 41, and the other end is set to ellipsoid 42, and probe positioning hole 43 is arranged on pre-bending pitman 4 and is positioned on ellipsoid.
Corresponding operating theater instruments also includes unfolding pressurizing device 2, compressive sleeve 3, percutaneous cone nut bone grafting passage 5, the 3rd dilator 6 and bone cement and injects adapter 7, and unfolding pressurizing device 2 is made up of symmetrically arranged two unfolding pressurizing device bodies.
As shown in accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, unfolding pressurizing device body is made up of handle section 24, bending segment 22 and pressurized segment 23, and bending segment 22 intersections of two unfolding pressurizing device bodies are flexibly connected, and on the bending segment 22 of unfolding pressurizing device 2, are provided with dip stick 25; Compressive sleeve 3 one sides are provided with probe 33, one end of dip stick 25 is fixedly connected on the handle section on unfolding pressurizing device right side, and the other end is slidably connected with unfolding pressurizing device through the handle section in unfolding pressurizing device left side, the pressurized segment 23 of unfolding pressurizing device 2 is provided with the groove 26 consistent with pre-bending pitman 4 internal diameters.
As shown in accompanying drawing 5 and Fig. 6, percutaneous cone nut bone grafting passage 5 and the 3rd dilator 6 are the pipe body of up/down perforation, the internal diameter of the pipeline of percutaneous cone nut bone grafting passage 5 is consistent with the outer diameter tube of the 3rd dilator 6, percutaneous cone nut bone grafting passage 5 ends, pipeline upper end are provided with handle 52, its pipeline upper end is provided with external screw thread 51, the head 61 of the 3rd dilator 6 is provided with handle 62, head 61 lower ends of the 3rd dilator 6 are provided with female thread 63, and this female thread 63 matches with the external screw thread 51 on percutaneous cone nut bone grafting passage 5.
As shown in Figure 10, bone cement is injected the pipe body that adapter 7 is up/down perforation, the head 72 that bone cement is injected adapter 7 is provided with handle 73, head 72 lower ends that bone cement is injected adapter 7 are provided with external screw thread 74, the lower end that bone cement is injected adapter 7 is set to cone shape, and bone cement is injected the cylindrical cavity that is provided with up/down perforation in adapter 7; The external screw thread 74 that bone cement is injected on adapter 7 matches with the female thread of U-shaped arm 11 inwalls, bone cement is injected the lower end that adapter 7 is cone shape and is matched with the cavity that is cone shape in nail seat 12, and it is consistent with described screw rod 13 intracavity diameters that bone cement is injected the internal diameter of cylindrical cavity of adapter 7.
As shown in accompanying drawing 7 and accompanying drawing 8, compressive sleeve 3 one sides are provided with upper bracket 31 and undersetting 32, the upper end of probe 33 is provided with pin cap 35, its lower end is through upper bracket 31 and undersetting 32, and on probe 33, cover has spring 36, this spring 36 is between upper bracket 31 and undersetting 32, and the opposite side of compressive sleeve 3 is fixedly connected with sleeve handle 34.
Embodiment:
Perform the operation as example to implement compression fracture of vertabral body, the object of operation is to insert 4 pieces of pedicle of vertebral arch screws hindering hypocentrum on vertebra, and the operating process of thoracic and lumbar vertebral posterior minimal invasion internal fixation system described in the utility model is specific as follows:
1,, according to preoperative location, under C arm X-ray machine normotopia and side position guide of fluoroscopy, puncture needle is entered to the entry point between little joint and transverse process.
2, confirm that guide pin syringe needle is positioned at after the outer rim of pedicle of vertebral arch on positive bit slice, be screwed into puncture needle until the center of pedicle of vertebral arch, and guarantee that by normotopia, side position perspective guide pin do not wear out pedicle wall.
3, remove puncture nook closing member, place guide pin, extract puncture needle, centered by guide pin, cut the longitudinal cut of about 2cm, by dilator intramedullary expansion jacket casing outside guide pin and insert surface of bone.
4, at the upper outside expansion sleeve of intramedullary expansion bush outer sleeve, and be intactly placed on entry point; After guide pin and outer expansion sleeve lock are fixed, remove intramedullary expansion sleeve, insert the cortical bone place enlarging of hollow gag at pedicle of vertebral arch entry point along guide pin.
5, the hollow of suitable dimension is screwed into pedicle of vertebral arch from boring wire taper sleeve at guide pin place, when tapping, notices checking that sounding mark on guide pin and vertical marker are excessively screwed into and rotate avoiding, and do not attack to guide pin; The simultaneously sounding mark on screw tap, can be used for determining the length of screw.
6, remove screw tap, use talent scout to confirm that in guide pin is other pedicle of vertebral arch is complete; Be screwed into pedicle of vertebral arch screw (inject bone cement as needs, select hollow pedicle screw with holes); Use the C positive side of arm X-ray machine position to confirm after pedicle of vertebral arch screw position suitable, extract guide pin, extender being screwed in " U " type arm combines closely the lower end of extender and the inner conical surface of screw, by bone cement infusing device, under the supervision of C arm X-ray machine, inject bone cement, push away after Wangue cement and with nook closing member, the bone cement in screw is pushed in vertebral body, take out extender, insert pin.
7, use excellent measuring device, determine the pre-bending pitman of appropriate size, with curved rod device, pitman is curved to suitable curvature according to the curvature of fixed-segment; The square end of pre-bending pitman is inserted and held excellent device fixing, and now the location sky of pre-bending pitman upward.
8, put rod: make to hold excellent device near screw, first on the close pedicle of vertebral arch screw of holding excellent device, being screwed into nut fixes and locks, remove and hold excellent device, another piece of pedicle of vertebral arch screw nut is screwed into appropriate depth (pre-bending pitman can move in screw), insert the compressive sleeve (making a side of probe be positioned at oval ball shape one side of pre-bending pitman) with probe, insert the capable distraction reduction of unfolding pressurizing device, note observing the scale on dilator, the lock nut when probe on compressive sleeve falls.
9, use the same method the pre-bending pitman of opposite side is installed after and pedicle screw is fixed, after finally broken U-shaped arm being fractureed, extract.
10, as patient fracture compression more, with puncture needle through hindering vertebra vertebral pedicle puncture, after puncturing successfully, extract nook closing member, insert guide pin, successively first, second and third dilator is squeezed into vertebral body by order from small to large, after squeezing into vertebral body with the 3rd dilator of bone grafting passage, take out dilator and guide pin, bone grafting passage is stayed in vertebral body, funnel is fixed on to the upper end of bone grafting passage by screw thread, by packaged broken bone enter funnel, bone grafting passage, with the fixing bone grafting passage of hands, use the nook closing member consistent with bone grafting passage internal diameter that broken bone piece is pushed to vertebral body; As there being occupy-place in canalis spinalis, can combine under posterior intervertebral-disc-scope (MED) the excision sections vertebral plate decompression of getting involved.
Claims (9)
1. a thoracic and lumbar vertebral posterior minimal invasion internal fixation system, include implant and corresponding operating theater instruments, corresponding operating theater instruments comprises puncture needle, guide pin, expanded casing, vast sky heart open circuit device, cone, hollow screw tap, sounder, upper nail device, the first dilator of holding excellent device, funnel, inner hollow and the second dilator, it is characterized in that:
Described implant includes pedicle screw (1) and pre-bending pitman (4), the nail seat (12) that described pedicle screw (1) connects by screw rod (13), with screw rod upper end and the U-shaped arm (11) that is connected in nail seat upper end form, described screw rod is provided with multiple perforates on (13), the inner chamber UNICOM of the inner chamber upper end of described nail seat (12) and U-shaped arm (11) bottom and lower end and screw rod (13) inner chamber is connected;
Described corresponding operating theater instruments also includes unfolding pressurizing device (2), compressive sleeve (3), percutaneous cone nut bone grafting passage (5), the 3rd dilator (6) and bone cement and injects adapter (7), described unfolding pressurizing device (2) is made up of symmetrically arranged two unfolding pressurizing device bodies, described unfolding pressurizing device body is made up of handle section (24), bending segment (22) and pressurized segment (23), bending segment (22) intersection of two unfolding pressurizing device bodies is flexibly connected, and on the bending segment (22) of unfolding pressurizing device (2), is provided with dip stick (25); Described compressive sleeve (3) one sides are provided with probe (33); One end of described pre-bending pitman is provided with probe positioning hole; Described percutaneous cone nut bone grafting passage (5) and the 3rd dilator (6) are the pipe body of up/down perforation, and the internal diameter of the pipeline of percutaneous cone nut bone grafting passage (5) is consistent with the outer diameter tube of the 3rd dilator (6); Described bone cement is injected the pipe body that adapter (7) is up/down perforation.
2. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as claimed in claim 1, is characterized in that: described percutaneous cone end, nut bone grafting passage (5) pipeline upper end is provided with handle (52), and its pipeline upper end is provided with external screw thread (51).
3. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as claimed in claim 1 or 2, it is characterized in that: the head (61) of described the 3rd dilator (6) is provided with handle (62), head (61) lower end of the 3rd dilator (6) is provided with female thread (63), and this female thread (63) matches with the external screw thread (51) on percutaneous cone nut bone grafting passage (5).
4. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as claimed in claim 1, it is characterized in that: the inner chamber of described nail seat (12) is the cavity that is inverted cone shape, described screw rod (13) inner chamber is cylindrical cavity, and described U-shaped arm (11) inwall is provided with female thread.
5. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as described in claim 1 or 4, is characterized in that: the length of described nail seat (12) is about 5mm-20mm.
6. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as claimed in claim 1, it is characterized in that: one end of described dip stick (25) is fixedly connected on the handle section on unfolding pressurizing device right side, and the other end is slidably connected with unfolding pressurizing device through the handle section in unfolding pressurizing device left side; The pressurized segment (23) of described unfolding pressurizing device (2) is provided with the groove (26) consistent with pre-bending pitman (4) internal diameter.
7. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as claimed in claim 1, it is characterized in that: described compressive sleeve (3) one sides are provided with upper bracket (31) and undersetting (32), the upper end of described probe (33) is provided with pin cap (35), its lower end is through upper bracket (31) and undersetting (32), and the upper cover of probe (33) has spring (36), this spring (36) is positioned between upper bracket (31) and undersetting (32), and the opposite side of described compressive sleeve (3) is fixedly connected with sleeve handle (34).
8. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as claimed in claim 1, it is characterized in that: one end of described pre-bending pitman (4) is set to square body (41), the other end is set to ellipsoid (42), and described probe positioning hole (43) is arranged on pre-bending pitman (4) and is positioned on ellipsoid.
9. a kind of thoracic and lumbar vertebral posterior minimal invasion internal fixation system as described in claim 1 or 4, it is characterized in that: the head (72) that described bone cement is injected adapter (7) is provided with handle (73), head (72) lower end that bone cement is injected adapter (7) is provided with external screw thread (74), the lower end that described bone cement is injected adapter (7) is set to cone shape, and described bone cement is injected the cylindrical cavity that is provided with up/down perforation in adapter (7); The external screw thread (74) that described bone cement is injected on adapter (7) matches with the female thread of U-shaped arm (11) inwall, described bone cement is injected the lower end that adapter (7) is cone shape and is matched with the cavity that is cone shape in nail seat (12), and it is consistent with described screw rod (13) intracavity diameter that described bone cement is injected the internal diameter of cylindrical cavity of adapter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058663.4U CN203749544U (en) | 2014-02-07 | 2014-02-07 | Minimally invasive thoracolumbar posterior percutaneous internal fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420058663.4U CN203749544U (en) | 2014-02-07 | 2014-02-07 | Minimally invasive thoracolumbar posterior percutaneous internal fixation system |
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| CN203749544U true CN203749544U (en) | 2014-08-06 |
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| CN201420058663.4U Expired - Fee Related CN203749544U (en) | 2014-02-07 | 2014-02-07 | Minimally invasive thoracolumbar posterior percutaneous internal fixation system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225142A (en) * | 2016-12-12 | 2018-06-29 | 创生医疗器械（中国）有限公司 | A kind of novel measuring scale |
| CN108939239A (en) * | 2018-08-24 | 2018-12-07 | 遵义医学院附属口腔医院 | A kind of medical mouth gag |
| CN112790847A (en) * | 2020-09-23 | 2021-05-14 | 罗绍金 | Selective pedicle screw and method of use |
-
2014
- 2014-02-07 CN CN201420058663.4U patent/CN203749544U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225142A (en) * | 2016-12-12 | 2018-06-29 | 创生医疗器械（中国）有限公司 | A kind of novel measuring scale |
| CN108225142B (en) * | 2016-12-12 | 2023-12-12 | 创生医疗器械（中国）有限公司 | Measuring ruler |
| CN108939239A (en) * | 2018-08-24 | 2018-12-07 | 遵义医学院附属口腔医院 | A kind of medical mouth gag |
| CN108939239B (en) * | 2018-08-24 | 2024-02-13 | 遵义医学院附属口腔医院 | Medical mouth gag |
| CN112790847A (en) * | 2020-09-23 | 2021-05-14 | 罗绍金 | Selective pedicle screw and method of use |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHAOYANG HOSPITAL OF TRADITIONAL CHINESE MEDICINE Effective date: 20150209 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150209 Address after: Shaoyang City, Hunan Province, 422000 East Road No. 631 Shaoyang Hospital of Traditional Chinese Medicine orthopedics Patentee after: Ding Hui Patentee after: The Shaoyang City hospital of traditional Chinese hospital Address before: Shaoyang City, Hunan Province, 422000 East Road No. 631 Shaoyang Hospital of Traditional Chinese Medicine orthopedics Patentee before: Ding Hui |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20160207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |