CN117137602A - Cervical vertebra plate and holding plate guider for ACAF operation - Google Patents
Cervical vertebra plate and holding plate guider for ACAF operation Download PDFInfo
- Publication number
- CN117137602A CN117137602A CN202311028873.9A CN202311028873A CN117137602A CN 117137602 A CN117137602 A CN 117137602A CN 202311028873 A CN202311028873 A CN 202311028873A CN 117137602 A CN117137602 A CN 117137602A
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- Prior art keywords
- plate
- hole
- outer sleeve
- guide
- block
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- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims description 16
- 238000001356 surgical procedure Methods 0.000 claims description 9
- 210000000988 bone and bone Anatomy 0.000 abstract description 11
- 230000000007 visual effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 239000012855 volatile organic compound Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 208000009469 Ossification of Posterior Longitudinal Ligament Diseases 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004927 fusion Effects 0.000 description 3
- 210000004446 longitudinal ligament Anatomy 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 230000011164 ossification Effects 0.000 description 3
- 201000002044 ossification of the posterior longitudinal ligament of spine Diseases 0.000 description 3
- 208000001040 ossification of the posterior longitudinal ligament of the spine Diseases 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 206010008164 Cerebrospinal fluid leakage Diseases 0.000 description 1
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 208000020431 spinal cord injury Diseases 0.000 description 1
- 210000000273 spinal nerve root Anatomy 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
Abstract
The invention provides a cervical vertebra plate and a holding plate guider for ACAF operation, comprising: the plate body comprises a plate upper part, a plate middle part and a plate lower part which are sequentially connected from top to bottom; the middle part of the plate is provided with at least one group of middle hole groups, each group of middle hole groups comprises two middle installation through holes arranged on the front side surface of the middle part of the plate, the extending directions of the two middle installation through holes are parallel to the front-back direction of the plate body, the plane where the central axes of the two middle installation through holes are positioned is a middle through hole datum plane, and the middle through hole datum plane is obliquely arranged relative to the left-right direction of the plate body; the width of the upper part of the plate is larger than that of the middle part of the plate; the width of the lower part of the plate is larger than that of the middle part of the plate. The invention relates to a cervical vertebra bone plate for ACAF operation with a large visual field.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a cervical vertebra bone plate and a plate holding guide for ACAF operation.
Background
Ossification of the posterior longitudinal ligament, abbreviated as OPLL, ossification of the Posterior Longitudinal Ligament, is a clinically common disorder. The specific operation of ossification of the posterior longitudinal ligament of the cervical vertebra is divided into anterior, posterior and anterior-posterior joint operations of the cervical vertebra. Such as posterior cervical vertebroplasty, laminoplasty, anterior cervical vertebroplasty, and the like.
Front controllable anti-shift fusion, english is abbreviated as ACAF, anterior Controllable Antidisplacement and Fusion. The anterior controllable anti-displacement fusion is based on the concept of bone compound forward movement, and the function of vertebral canal space restoration is completed, so that the direct decompression of nerve components is realized under the condition that the position of the vertebral canal space is not changed. The rest vertebral bodies and OPLL blocks are used as autologous bones for reconstruction of anterior columns, so that the risk and difficulty of anterior operation are reduced, and complications of cerebrospinal fluid leakage and spinal cord injury are reduced.
Vertebral body-posterior longitudinal ligament ossification complex, english abbreviated VOC, vertebrae-OPLL complex. The anatomical basis of the clinical efficacy of ACAF is the directed decompression of the spinal cord and nerve roots, with bilateral spinal osteotomies giving sufficient decompression to the bilateral nerve roots, and the reverse movement of VOCs further resulting in direct and thorough decompression of the spinal cord. The efficacy of ACAF depends on complete isolation of VOCs and resistance to translocation.
The completion of the reverse movement of the VOC in the ACAF procedure is an important factor for the success of the procedure, and the internal fixation devices used in the existing ACAF procedure have a small field of view, thereby affecting the VOC advancing effect and even causing neurological complications.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, the present invention solves the technical problem of providing a cervical vertebral plate and a holding plate guide for ACAF surgery with a large field of view.
To achieve the above and other related objects, the present invention provides a cervical bone plate for ACAF surgery, comprising: the plate body comprises a plate upper part, a plate middle part and a plate lower part which are sequentially arranged from top to bottom;
the middle part of the plate is provided with at least one group of middle hole groups, each group of middle hole groups comprises two middle installation through holes arranged on the front side surface of the middle part of the plate, the extending directions of the two middle installation through holes are parallel to the front-back direction of the plate body, the plane where the central axes of the two middle installation through holes are positioned is a middle through hole datum plane, and the middle through hole datum plane is obliquely arranged relative to the left-right direction of the plate body;
the width of the upper part of the plate is larger than that of the middle part of the plate; the width of the lower part of the plate is larger than that of the middle part of the plate.
Preferably, an upper left through hole and an upper right through hole are formed in the front side surface of the upper part of the plate; the front side surface of the lower part of the plate is provided with a lower left through hole and a lower right through hole; the extending direction of the upper left through hole, the extending direction of the upper right through hole, the extending direction of the lower left through hole and the extending direction of the lower right through hole are all inclined in the front-back direction of the plate body.
Preferably, the rear side of the plate body is an arc-shaped surface.
As described above, the cervical bone plate for ACAF surgery of the present invention has the following beneficial effects:
because the planes of the central axes of the two middle mounting through holes are obliquely arranged relative to the left and right directions of the plate body, the two middle mounting through holes of each middle hole group are obliquely arranged relative to the left and right directions of the plate body, the width of the middle part of the plate can be reduced, the width of the upper part of the plate is larger than that of the middle part of the plate, and the width of the lower part of the plate is larger than that of the middle part of the plate, so that the surgical field of view can be increased; the invention relates to a cervical vertebra bone plate for ACAF operation with a large visual field.
The present invention also relates to a holding plate guide for holding a cervical plate for ACAF surgery, the holding plate guide comprising:
the outer sleeve is uniformly provided with at least three dividing grooves along the circumferential direction of the lower part of the outer sleeve, and the lower part of the outer sleeve is divided into at least three valve bodies by all the dividing grooves; each of the dividing grooves is communicated with the inner cavity of the outer sleeve, and each of the dividing grooves extends to the lower end of the outer sleeve; the outer side surface of the lower part of the outer sleeve is provided with a concave part; the outer side surface of the outer sleeve is also provided with a guide groove which is communicated with the inner cavity of the outer sleeve; the guide groove is positioned above the dividing groove; a receiving channel is arranged in the inner cavity of the outer sleeve and is positioned between the guide groove and the dividing groove; the size of the receiving channel is sequentially reduced from top to bottom;
the connecting rod assembly includes: the connecting rod, the push rod and the end bearing piece; the lower end of the connecting rod is connected with the upper end of the outer sleeve, the upper end of the connecting rod is movably connected with the end bearing piece, and the upper end of the push rod is movably connected with the end bearing piece; the push rod is provided with a handle, the handle is pushed, and the handle can drive the push rod to move up and down relative to the end bearing piece;
one end of the sliding block is hinged with the lower end of the push rod, and the other end of the sliding block is inserted into the guide groove;
the inner sleeve is inserted into the inner cavity of the outer sleeve and is connected with the other end of the sliding block; the outer side surface of the inner sleeve is of a conical structure, and the size of the cross section of the conical structure is sequentially reduced from top to bottom; an inner cylinder axial channel is arranged on the inner sleeve;
the lower part of the outer sleeve can pass through the middle mounting through hole; when the push rod moves downwards, the push rod can drive the inner sleeve to move downwards through the sliding block, after the lower end of the inner sleeve passes through the lower end of the bearing channel, all the valve bodies are outwards spread by the inner sleeve, and the hole wall of the middle mounting through hole can be clamped in the concave part.
Preferably, the end socket comprises an end cap, a spring and a support block; the upper end of the connecting rod is provided with a connecting block, the outer circumferential surface of the connecting block is provided with a block external thread part, and the connecting block is provided with a block receiving hole; the end cap is provided with a hollow cavity, and the spring and the supporting block are arranged in the hollow cavity; the bottom of the end cap is provided with an opening part, the opening part is communicated with a hollow cavity of the end cap, the inner wall of the hollow cavity is provided with a cavity internal thread part, the connecting block is arranged in the hollow cavity of the end cap, and the cavity internal thread part is in threaded connection with the block external thread part; the upper end of the push rod passes through the block bearing hole; the support block is positioned between the connecting block and the top plate of the end cap; the upper end of the push rod is connected with the supporting block; the upper end of the spring is connected with the top plate of the end cap, and the lower end of the spring is connected with the supporting block.
Preferably, the outer side surface of the depth drilling ruler is provided with a ruler body thread part, the outer side surface of the depth drilling ruler is provided with two notch parts, the notch parts extend to the bottom surface of the depth drilling ruler, and the depth drilling ruler is provided with a ruler body axial channel; the inner cavity of the outer sleeve is provided with a ruler part guide channel, and the ruler part guide channel is provided with two ruler part guide parts which are oppositely arranged; when the drill depth gauge is inserted into the gauge portion guide channel, the two gauge portion guide portions respectively support the two notch portions; the depth drilling ruler is positioned above the inner sleeve; the driving nut is arranged at the upper end of the drill depth ruler, the driving nut is in threaded connection with the ruler body threaded part, and the driving nut is positioned above the outer sleeve;
a drill rod can sequentially pass through the ruler body axial channel and the inner barrel axial channel and then pass out from the bottom of the outer sleeve; and a flange is arranged on the outer side surface of the drill rod.
As described above, the holding plate guide of the present invention has the following advantageous effects:
when the holding plate guide is used, the end bearing piece can drive the push rod to move downwards, when the push rod moves downwards, the push rod can drive the inner sleeve to move downwards through the sliding block, after the lower end of the inner sleeve passes through the lower end of the bearing channel, all the valve bodies are outwards spread by the inner sleeve, so that the hole wall of the middle mounting through hole can be clamped in the concave part, the holding plate guide can hold the cervical vertebra plate through the outward spreading of the valve bodies at the lower part of the outer sleeve, and the holding plate guide plays a guiding role;
the handle is pushed upwards, the handle can drive the push rod to move upwards relative to the end bearing piece, the push rod can drive the inner sleeve to move upwards through the sliding block, all the valve bodies are folded inwards, and the concave part of the outer sleeve is separated from the middle mounting through hole; the hold-up plate guide is withdrawn from the cervical vertebral plate by pulling the handles of the push rods to release the hold-up state of all petals;
the cervical vertebra plate can be stably held by the plate holding guide, and the plate holding guide is convenient to operate and accurate in positioning.
Drawings
Fig. 1 is a schematic view showing the structure of the front side of the plate body of the cervical plate for ACAF operation of this embodiment.
Fig. 2 is a schematic perspective view showing a rear side of a plate body of a cervical plate for ACAF surgery according to the present embodiment.
Fig. 3 is a schematic perspective view showing the construction of the end fixing screw, the plate fixing screw and the middle fixing screw mounted on the cervical vertebrae plate for the ACAF procedure of the present embodiment.
Fig. 4 is a schematic perspective view showing a structure of a cervical plate for holding an ACAF operation by the plate holding guide of the present embodiment.
Fig. 5 is a schematic cross-sectional view of the holding plate guide according to the present embodiment.
Fig. 6 is a schematic bottom perspective view of the end receiving member of the retainer plate guide of the present embodiment.
Fig. 7 is a schematic top perspective view showing the end receiving piece of the holding plate guide of the present embodiment.
Fig. 8 is a schematic cross-sectional perspective view showing the threaded connection of the end receiving piece of the retainer plate guide and the connecting block of the connecting rod.
Fig. 9 is a schematic perspective view showing a cross section of the drill rod according to the present embodiment passing through the axial passage of the shank and the axial passage of the inner cylinder in sequence.
Fig. 10 is a schematic perspective view showing a driving nut of the retainer plate guide according to the present embodiment.
Fig. 11 is a schematic perspective view showing a drill depth gauge of the holder plate guide according to the present embodiment.
Fig. 12 is a schematic side perspective view showing the outer sleeve of the holding plate guide of the present embodiment.
Fig. 13 is an enlarged schematic view of the structure at a in fig. 12.
Fig. 14 is a schematic top perspective view showing the outer sleeve of the holding plate guide of the present embodiment.
Fig. 15 is a schematic cross-sectional view showing the outer sleeve of the holding plate guide of the present embodiment.
Fig. 16 is a schematic perspective view showing an inner sleeve of the retainer plate guide of the present embodiment.
Fig. 17 is a schematic cross-sectional view of an inner sleeve of the retainer plate guide of the present embodiment.
Description of the reference numerals
100. Board body
110. Upper part of the plate
111. Upper left side through hole
112. Upper right side through hole
113. Upper left arc supporting seat
114. Upper right arc supporting seat
115. Upper positioning hole
120. Middle part of the plate
130. Lower part of the plate
131. Lower left through hole
132. Lower right through hole
133. Lower left arc supporting seat
134. Lower right arc supporting seat
135. Lower positioning hole
140. Middle hole group
141. Middle mounting through hole
1411. Ball socket
142. Middle positioning hole
101. Rear side of the plate body
200. Outer sleeve
210. Dividing groove
220. Petal body
230. Recess portion
231. Spherical structure
240. Guide groove
250. Receiving channel
260. Ruler part guide channel
261. Ruler part guide part
270. Viewing port
300. Connecting rod
310. Connecting block
311. External screw thread part of block
312. Block receiving hole
400. Push rod
410. Handle grip
420. Pin
500. End socket
510. End cap
511. Hollow cavity
512. Screw thread part in cavity
513. Top plate
514. An opening part
520. Spring
530. Supporting block
600. Sliding block
700. Inner sleeve
710. Axial passage of inner cylinder
810. Depth drilling ruler
811. Screw part of ruler body
812. Notch portion
813. Axial passage of ruler body
820. Driving nut
900. Drill rod
910. Flange
11. End fixing screw
12. Plate positioning screw
13. Middle fixing screw
Width of upper part of W1 plate
Width of the middle of the W2 plate
Width of lower part of W3 plate
Central axis of L1 middle mounting through hole
M1 middle through hole datum plane
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1 to 3, the ACAF-operated cervical bone plate of the present embodiment comprises: a panel body 100, the panel body 100 comprising a panel upper portion 110, a panel middle portion 120 and a panel lower portion 130 connected in sequence from top to bottom;
at least one group of middle hole groups 140 are arranged on the middle part 120 of the plate, each group of middle hole groups 140 comprises two middle mounting through holes 141 arranged on the front side surface of the middle part 120 of the plate, the extending directions of the two middle mounting through holes 141 are parallel to the front-back direction of the plate body 100, the plane where the central axes of the two middle mounting through holes 141 are positioned is a middle through hole datum plane M1, and the middle through hole datum plane M1 is obliquely arranged relative to the left-right direction of the plate body 100; a middle fixing screw 13 is installed in the middle installation through hole 141; the central axis of the middle mounting through hole 141 is L1;
the width W1 of the upper plate portion 110 is greater than the width W2 of the middle plate portion 120; the width W3 of the lower plate portion 130 is greater than the width W2 of the middle plate portion 120.
Because the plane in which the central axes of the two middle mounting through holes 141 are located is inclined with respect to the left-right direction of the plate body 100, the two middle mounting through holes 141 of each middle hole group 140 are inclined with respect to the left-right direction of the plate body 100, the width W2 of the middle plate 120 can be reduced more on the premise of maintaining the strength of the plate body 100, so that the width W1 of the upper plate 110 is greater than the width W2 of the middle plate 120, and the width W3 of the lower plate 130 is greater than the width W2 of the middle plate 120, therefore, the width W2 of the middle plate 120 is smaller, the surgical field can be increased, and the vertebral bodies can be observed better in the VOC displacement process; the invention relates to a cervical vertebra bone plate for ACAF operation with a large visual field.
An upper left through hole 111 and an upper right through hole 112 are provided on the front side of the upper plate 110; a lower left through hole 131 and a lower right through hole 132 are formed on the front side of the lower plate 130; the extending direction of the upper left through hole 111, the extending direction of the upper right through hole 112, the extending direction of the lower left through hole 131, and the extending direction of the lower right through hole 132 are all inclined in the front-rear direction of the board body 100. This structure allows the installation directions of the end fixing screws 11 installed on the upper left through hole 111, the upper right through hole 112, the lower left through hole 131, and the lower right through hole 132 to be inclined with respect to the front-rear direction of the plate body 100, the maximum length of the end fixing screws 11 inserted obliquely can be increased, which allows the holding force of the end fixing screws 11 to be enhanced.
An upper left arc supporting seat 113 is arranged at the upper part of the hole wall of the upper left through hole 111, an upper right arc supporting seat 114 is arranged at the upper part of the hole wall of the upper right through hole 112, a lower left arc supporting seat 133 is arranged at the upper part of the hole wall of the lower left through hole 131, and a lower right arc supporting seat 134 is arranged at the upper part of the hole wall of the lower right through hole 132; the upper left arc supporting seat 113, the upper right arc supporting seat 113, the lower left arc supporting seat 133, and the lower right arc supporting seat 134 serve to support the heads of the end fixing screws 11 such that the installation angle of the supporting end fixing screws 11 is adjustable.
The back side 101 of the plate body 100 is an arc surface, and the size of the arc surface is modeled according to physiological curvature, so that the plate body can be more fit with the vertebral body.
The cervical vertebra plate for ACAF operation is made of titanium alloy material, and is produced by machining, so that the cervical vertebra plate is convenient to process. The cervical vertebra plate is made of titanium alloy material, and has high safety performance and good biocompatibility.
In the cervical bone plate for ACAF operation, two upper positioning holes 115 are arranged on the upper part 110 of the plate; the lower plate 130 is provided with two lower positioning holes 135; one of the upper positioning holes 115 is adjacent to the upper left-hand through hole 111, and the other upper positioning hole 115 is adjacent to the upper right-hand through hole 112; one of the lower positioning holes 135 is adjacent to the lower left through hole 131, and the other lower positioning hole 135 is adjacent to the lower right through hole 132; the middle hole group 140 of the middle part 120 of the plate further includes a middle positioning hole 142, and the middle positioning hole 142 is located between the two middle mounting through holes 141. Plate positioning screws 12 are installed in each of the upper positioning holes 115, the lower positioning holes 135, and the middle positioning holes 142.
In this embodiment, there are two sets of middle aperture sets 140.
A method of installing cervical vertebral plates for ACAF surgery comprising the steps of:
1) Two end fixing screws 11 pass through the upper left through hole 111 and the upper right through hole 112, respectively, to connect the plate upper part 110 of the cervical vertebral plate with the vertebral body above the vertebral body-posterior longitudinal ligament ossification complex; two end fixing screws 11 pass through the lower left through hole 131 and the lower right through hole 132 respectively, connecting the plate lower part 130 of the cervical vertebral plate with the vertebral body below the vertebral body-posterior longitudinal ligament ossification complex;
2) Each middle fixing screw 13 passes through the corresponding middle mounting through hole 141 to connect the plate middle 120 of the cervical vertebral plate with the vertebral body-posterior longitudinal ligament ossification complex;
3) All of the plate positioning screws 12 are installed in the corresponding upper, lower and middle positioning holes 115, 135 and 142, respectively; the heads of the plate setting screws 12 installed in the upper setting holes 115 can press the heads of the adjacent end setting screws 11, the heads of the plate setting screws 12 installed in the middle setting holes 142 can press the heads of the two adjacent middle setting screws 13, and the heads of the plate setting screws 12 installed in the lower setting holes 135 can press the heads of the adjacent end setting screws 11. The plate positioning screw 12 is a locking screw, and the plate positioning screw 12 is installed, so that the end fixing screw 11 and the middle fixing screw 13 can be ensured to keep a certain relative position with the cervical vertebra plate, and the end fixing screw 11 and the middle fixing screw 13 are ensured not to withdraw from the cervical vertebra plate.
The cervical vertebra bone plate of ACAF operation can make the wide range of the visual field in the art, and the holding power of connecting the tip set screw 11 of centrum can be strengthened, installs the screw angle on cervical vertebra plate and can not skew, and this can not influence the reverse motion of hoist and mount in-process VOC, also can not influence VOC antedisplacement effect, effectively avoids arousing nerve complication, also can avoid recovering the condition emergence that the physiological curvature effect of cervical vertebra is unobvious in the art, is difficult for recovering the physiological curvature in the difficult appearance art, or postoperative physiological curvature loses the phenomenon.
As shown in fig. 4 to 17, the holding plate guide of the present embodiment for holding a cervical plate for ACAF surgery, the holding plate guide comprising:
outer sleeve 200 is uniformly provided with at least three dividing grooves 210 along the circumferential direction of the lower portion of outer sleeve 200, all dividing grooves 210 dividing the lower portion of outer sleeve 200 into at least three petals 220; each of dividing grooves 210 communicates with the inner cavity of outer sleeve 200, and each of dividing grooves 210 extends to the lower end of outer sleeve 200; a recess 230 is provided on the outer side of the lower portion of outer sleeve 200; the outer side surface of outer sleeve 200 is also provided with a guide groove 240, and guide groove 240 is communicated with the inner cavity of outer sleeve 200; the guide groove 240 is above the dividing groove 210; the inner cavity of outer sleeve 200 is provided with a receiving channel 250, and receiving channel 250 is positioned between guide groove 240 and dividing groove 210; the size of the receiving channel 250 decreases sequentially from top to bottom;
the connecting rod assembly includes: a connecting rod 300, a push rod 400 and an end socket 500; the lower end of the connecting rod 300 is connected with the upper end of the outer sleeve 200, the upper end of the connecting rod 300 is movably connected with the end bearing piece 500, and the upper end of the push rod 400 is movably connected with the end bearing piece 500; the push rod 400 is provided with a handle 410, and the handle 410 is pushed to drive the push rod 400 to move up and down relative to the end bearing 500;
the sliding block 600, one end of the sliding block 600 is hinged with the lower end of the push rod 400, and the other end of the sliding block 600 is inserted into the guide groove 240;
inner sleeve 700, inner sleeve 700 is inserted into the inner cavity of outer sleeve 200, and inner sleeve 700 is connected with the other end of slider 600; the outer side surface of the inner sleeve 700 is a conical structure, and the cross section of the conical structure is sequentially reduced from top to bottom; inner sleeve 700 is provided with an inner sleeve axial passage 710;
the lower portion of outer sleeve 200 may pass through middle mounting throughbore 141; when the push rod 400 moves downward, the push rod 400 drives the inner sleeve 700 to move downward through the sliding block 600, and after the lower end of the inner sleeve 700 passes through the lower end of the receiving channel 250, the inner sleeve 700 expands all the petals 220 outward, so that the hole wall of the middle mounting through hole 141 can be blocked in the concave portion 230.
When the holding plate guider is used, when the handle 410 is pushed to enable the push rod 400 to move downwards, the push rod 400 can drive the inner sleeve 700 to move downwards through the sliding block 600, after the lower end of the inner sleeve 700 passes through the lower end of the bearing channel 250, the inner sleeve 700 can outwards prop all the valve bodies 220, so that the hole wall of the middle part mounting through hole 141 can be clamped in the concave part 230, the holding plate guider can hold the cervical vertebra plate through outwards prop up the valve bodies 220 at the lower part of the outer sleeve 200, and the holding plate guider plays a guiding role;
pushing the handle 410 upward, the handle 410 can drive the push rod 400 to move upward relative to the end bearing 500, and then the push rod 400 can drive the inner sleeve 700 to move upward through the sliding block 600, all the petals 220 are folded inward, and the concave part 230 of the outer sleeve 200 is separated from the middle mounting through hole 141; the expanded state of all the petals 220 is released by pulling the handles 410 of the push rod 400 to withdraw the plate holder guide from the cervical vertebral plate;
the cervical vertebra plate can be stably held by the plate holding guide, and the plate holding guide is convenient to operate and accurate in positioning.
The holding plate guide is made of 304 stainless steel material. One end of the slider 600 is hinged to the lower end of the push rod 400 by a pin 420, and the handle 410 is welded to the push rod 400.
The dividing groove 210 on the outer sleeve 200 can ensure the guiding effect and simultaneously facilitate the preoperative sterilization and the overall weight reduction. In this embodiment, four dividing grooves 210 are provided on the outer sleeve 200, and the number of the petals 220 is 4.
The end socket 500 includes an end cap 510, a spring 520, and a support block 530; the upper end of the connecting rod 300 is provided with a connecting block 310, the outer circumferential surface of the connecting block 310 is provided with a block external thread part 311, and the connecting block 310 is provided with a block receiving hole 312; the end cap 510 is provided with a hollow cavity 511, and the spring 520 and the supporting block 530 are arranged in the hollow cavity 511; the bottom of the end cap 510 is provided with an opening 514, the opening 514 is communicated with a hollow cavity 511 of the end cap 510, the inner wall of the hollow cavity 511 is provided with a cavity internal thread part 512, the connecting block 310 is arranged in the hollow cavity 511 of the end cap 510, and the cavity internal thread part 512 is in threaded connection with the block external thread part 311; the upper end of the push rod 400 passes through the block receiving hole 312; the support block 530 is between the connection block 310 and the top plate 513 of the end cap 510; the upper end of the push rod 400 is connected with a supporting block 530; the upper end of the spring 520 is connected to the top plate 513 of the end cap 510, and the lower end of the spring 520 is connected to the support block 530.
The cap 510 houses the spring 520, and the cap 510 is screw-coupled with the connection block 310, the top plate 513 of the cap 510 presses the spring 520, and the spring 520 is stretched when the push rod 400 moves downward; when the push rod 400 moves upward, the spring 520 contracts; when the push rod 400 moves downward, the push rod 400 pushes the inner sleeve 700 downward, and the inner sleeve 700 spreads all the petals 220 outward. Fig. 8 is a schematic view of the inside of the end cap 510 when the push rod 400 moves downward to the extreme position.
The outer side surface of the deep drilling ruler 810 is provided with a ruler body thread part 811, the outer side surface of the deep drilling ruler 810 is provided with two notch parts 812, the notch parts 812 extend to the bottom surface of the deep drilling ruler 810, and the deep drilling ruler 810 is provided with a ruler body axial channel 813; the inner cavity of the outer sleeve 200 is provided with a ruler part guide channel 260, and the ruler part guide channel 260 is provided with two ruler part guide parts 261 which are arranged oppositely; when the depth drill gauge 810 is inserted into the gauge guide passage 260, the two gauge guide portions 261 support the two notch portions 812, respectively; a scale portion is provided on each notch portion 812; depth scale 810 is above inner sleeve 700; the driving nut 820 is arranged at the upper end of the drill depth gauge 810, the driving nut 820 is in threaded connection with the gauge body threaded part 811, and the driving nut 820 is positioned above the outer sleeve 200;
a drill rod 900 can pass through the ruler body axial channel 813 and the inner barrel axial channel 710 in sequence and then pass out from the bottom of the outer sleeve 200; a flange 910 is provided on the outer side of drill rod 900.
After the driving nut 820 is rotated, the drill depth gauge 810 is extended, and the drill depth gauge 810 can control the drill depth during the drilling process due to the scale portion provided on the drill extension gauge. When flange 910 of drill rod 900 contacts the top of drill depth gauge 810, the top of drill depth gauge 810 blocks downward movement of drill rod 900.
Outer sleeve 200 is provided with a viewing port 270, and a scale portion on notch portion 812 is viewable through viewing port 270.
When the middle fixing screw 13 is installed in the two middle installation through holes 141 of the middle hole group 140, after the vertebral body is drilled through the drill rod 900 passing through one of the middle installation through holes 141, the other middle installation through hole 141 of the cervical vertebra plate is held by the holding plate guider, after the drill rod 900 passes through the other middle installation through hole 141 to drill the vertebral body, the middle fixing screw 13 is installed in one of the middle installation through holes 141, and then the holding plate guider is withdrawn from the other middle installation through hole 141 of the cervical vertebra plate. Therefore, the lamina-holding guide may be inserted with a drill during surgery to prevent rotation of the vertebral body.
The upper edge of recess 230 of outer sleeve 200 forms a spherical structure 231, and each of the mid-mount through holes 141 has a socket 1411 for receiving spherical structure 231 therein to facilitate determination of the drilling angle.
The holding plate guider can assist in drilling positioning, control drilling depth and stably hold cervical vertebral plates, and the guiding process is simple, convenient and accurate. The invention provides a holding plate guider which is convenient to operate and accurate in positioning.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. An ACAF surgical cervical plate comprising: the plate comprises a plate body (100), wherein the plate body (100) comprises a plate upper part (110), a plate middle part (120) and a plate lower part (130) which are sequentially connected from top to bottom;
at least one group of middle hole groups (140) are arranged on the middle part (120) of the plate, each group of middle hole groups (140) comprises two middle installation through holes (141) arranged on the front side surface of the middle part (120) of the plate, the extending directions of the two middle installation through holes (141) are parallel to the front-back direction of the plate body (100), the plane where the central axes of the two middle installation through holes (141) are located is a middle through hole datum plane, and the middle through hole datum plane is obliquely arranged relative to the left-right direction of the plate body (100);
the width of the upper part (110) of the plate is greater than the width of the middle part (120) of the plate; the lower plate portion (130) has a width greater than the width of the middle plate portion (120).
2. The ACAF surgical cervical plate of claim 1, wherein: an upper left through hole (111) and an upper right through hole (112) are formed in the front side surface of the upper part (110) of the plate; the front side surface of the lower part (130) of the plate is provided with a lower left through hole (131) and a lower right through hole (132); the extending direction of the upper left through hole (111), the extending direction of the upper right through hole (112), the extending direction of the lower left through hole (131) and the extending direction of the lower right through hole (132) are all inclined.
3. The ACAF surgical cervical plate of claim 1, wherein: the rear side (101) of the plate body (100) is an arc-shaped surface.
4. A plate-holding guide for holding a cervical plate for ACAF surgery according to any one of claims 1 to 3, the plate-holding guide comprising:
the outer sleeve (200) is uniformly provided with at least three dividing grooves (210) along the circumferential direction of the lower part of the outer sleeve (200), and all the dividing grooves (210) divide the lower part of the outer sleeve (200) into at least three petals (220); each of the dividing grooves (210) communicates with the inner cavity of the outer sleeve (200), and each of the dividing grooves (210) extends to the lower end of the outer sleeve (200); a concave part (230) is arranged on the outer side surface of the lower part of the outer sleeve (200); a guide groove (240) is further formed in the outer side face of the outer sleeve (200), and the guide groove (240) is communicated with the inner cavity of the outer sleeve (200); the guide groove (240) is positioned above the dividing groove (210); a receiving channel (250) is arranged in the inner cavity of the outer sleeve (200), and the receiving channel (250) is positioned between the guide groove (240) and the dividing groove (210); the size of the receiving channel (250) is sequentially reduced from top to bottom;
the connecting rod assembly includes: a connecting rod (300), a push rod (400) and an end socket (500); the lower end of the connecting rod (300) is connected with the upper end of the outer sleeve (200), the upper end of the connecting rod (300) is movably connected with the end bearing piece (500), and the upper end of the push rod (400) is movably connected with the end bearing piece (500); a handle (410) is arranged on the push rod (400), the handle (410) is pushed, and the handle (410) can drive the push rod (400) to move up and down relative to the end bearing piece (500);
a slider (600), wherein one end of the slider (600) is hinged with the lower end of the push rod (400), and the other end of the slider (600) is inserted into the guide groove (240);
an inner sleeve (700), wherein the inner sleeve (700) is inserted into the inner cavity of the outer sleeve (200), and the inner sleeve (700) is connected with the other end of the sliding block (600); the outer side surface of the inner sleeve (700) is of a conical structure, and the cross section of the conical structure is sequentially reduced from top to bottom; an inner barrel axial channel (710) is arranged on the inner barrel (700);
a lower portion of the outer sleeve (200) is passable through the middle mounting through hole (141); when the push rod (400) moves downwards, the push rod (400) can drive the inner sleeve (700) to move downwards through the sliding block (600), and after the lower end of the inner sleeve (700) passes through the lower end of the receiving channel (250), all the petals (220) are outwards opened by the inner sleeve (700), so that the hole wall of the middle mounting through hole (141) can be clamped in the concave part (230).
5. The retainer plate guide of claim 4, wherein: the end socket (500) includes an end cap (510), a spring (520) and a support block (530); the upper end of the connecting rod (300) is provided with a connecting block (310), the outer circumferential surface of the connecting block (310) is provided with a block external thread part (311), and the connecting block (310) is provided with a block receiving hole (312); the end cap (510) is provided with a hollow cavity (511), and the spring (520) and the supporting block (530) are arranged in the hollow cavity (511); an opening part (514) is arranged at the bottom of the end cap (510), the opening part (514) is communicated with a hollow cavity (511) of the end cap (510), an internal cavity thread part (512) is arranged on the inner wall of the hollow cavity (511), the connecting block (310) is arranged in the hollow cavity (511) of the end cap (510), and the internal cavity thread part (512) is in threaded connection with the block external thread part (311); the upper end of the push rod (400) passes through the block receiving hole (312); the support block (530) is between the connection block (310) and a top plate (513) of the end cap (510); the upper end of the push rod (400) is connected with the supporting block (530); the upper end of the spring (520) is connected with the top plate (513) of the end cap (510), and the lower end of the spring (520) is connected with the supporting block (530).
6. The retainer plate guide of claim 4, wherein: also comprises a depth gauge (810) and a drive nut (820); the outer side surface of the drill depth gauge (810) is provided with a gauge body thread part (811), the outer side surface of the drill depth gauge (810) is provided with two notch parts (812), the notch parts (812) extend to the bottom surface of the drill depth gauge (810), and the drill depth gauge (810) is provided with a gauge body axial channel (813); the inner cavity of the outer sleeve (200) is provided with a ruler part guide channel (260), and the ruler part guide channel (260) is provided with two ruler part guide parts (261) which are arranged oppositely; when the depth-of-drilling ruler (810) is inserted into the ruler part guide channel (260), the two ruler part guide parts (261) respectively support the two notch parts (812); a scale part is arranged on each notch part (812); -the drill depth gauge (810) is above the inner sleeve (700); the driving nut (820) is arranged at the upper end of the drilling depth ruler (810), the driving nut (820) is in threaded connection with the ruler body threaded part (811), and the driving nut (820) is positioned above the outer sleeve (200);
a drill rod (900) can sequentially pass through the ruler body axial channel (813) and the inner barrel axial channel (710) and then pass out from the bottom of the outer sleeve (200); a flange (910) is arranged on the outer side surface of the drill rod (900).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311028873.9A CN117137602A (en) | 2023-08-15 | 2023-08-15 | Cervical vertebra plate and holding plate guider for ACAF operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311028873.9A CN117137602A (en) | 2023-08-15 | 2023-08-15 | Cervical vertebra plate and holding plate guider for ACAF operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117137602A true CN117137602A (en) | 2023-12-01 |
Family
ID=88883431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311028873.9A Pending CN117137602A (en) | 2023-08-15 | 2023-08-15 | Cervical vertebra plate and holding plate guider for ACAF operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117137602A (en) |
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2023
- 2023-08-15 CN CN202311028873.9A patent/CN117137602A/en active Pending
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