CN211911720U - Cortex bone track screw fixation guide plate for lumbar vertebra vertebral plate osteotomy - Google Patents
Cortex bone track screw fixation guide plate for lumbar vertebra vertebral plate osteotomy Download PDFInfo
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- CN211911720U CN211911720U CN202020190613.7U CN202020190613U CN211911720U CN 211911720 U CN211911720 U CN 211911720U CN 202020190613 U CN202020190613 U CN 202020190613U CN 211911720 U CN211911720 U CN 211911720U
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Abstract
The utility model relates to the technical field of medical equipment, concretely relates to lumbar vertebrae vertebral plate cuts bone with cortex bone track screw fixed baffle, including base plate, direction mark passageway pipe, screw direction passageway pipe and fixed plate, the one end and the base plate through connection of direction mark passageway pipe, the other end and the fixed plate intercommunication of direction mark passageway pipe, the one end of screw direction passageway pipe with base plate through connection, the other end of screw direction passageway pipe with the fixed plate intercommunication, screw direction passageway pipe are located one side of direction mark passageway pipe. The utility model discloses a fixed baffle adopts 3D to print the artificial base plate of emulation that the technique was designed according to different patients' state of an illness and operation mode, can match present clinical general use artificial vertebral plate and cortical bone orbit technique, and the direction mark passageway pipe of leading simultaneously can guide the accurate excision of vertebral plate, and prescribes a limit to the cortical bone screw and put the nail by the advancing nail direction of screw direction passageway pipe, effectively guarantees screw safety, accurate artificial vertebral plate of implantation.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to lumbar vertebrae vertebral plate cuts bone and fixes baffle with cortex bone track screw.
Background
The lumbar vertebral laminectomy is a common operation mode for spinal fracture, degeneration and tumor, the vertebral canal is decompressed by surgical excision of the vertebral plate, however, usually, the spinal stenosis is formed again due to the proliferation of local fibrous scar tissue after the laminectomy, dural adhesion and nerve compression are caused, and the implantation of the artificial vertebral plate is the only effective method at present, but the bone cutting range is roughly estimated according to the size of the artificial vertebral plate prosthesis in the prior art, the accuracy is low, repeated adjustment is needed, the time is long, and meanwhile, the accurate implantation of the artificial vertebral plate is on the premise that the range of the laminectomy is proper, so that a guide plate needs to be designed to assist in guiding the range of the laminectomy; in addition, the implanted artificial vertebral plate also needs effective fixation, and the conventional guide plate needs to maintain the position by hands, is easy to displace, influences the accuracy of the guide plate, and how to implant the fixing screw quickly and safely is also very important for implanting the guide plate by using the screw.
Disclosure of Invention
In order to overcome the shortcoming and the insufficiency that exist among the prior art, the utility model aims to provide a lumbar vertebrae vertebral plate cuts bone and uses cortex bone track screw fixed baffle, this fixed baffle can guide the baffle that the vertebral plate accuracy was excised and screw safety was implanted simultaneously, has improved the efficiency and the accuracy and the security of operation.
The purpose of the utility model is realized through the following technical scheme: a cortical bone rail screw fixing guide plate for lumbar vertebral plate osteotomy comprises a base plate, a guide marking channel tube, a screw guide channel tube and a fixing plate, wherein one end of the guide marking channel tube is connected with the base plate in a penetrating way, the other end of the guide marking channel tube is communicated with the fixing plate, one end of the screw guide channel tube is connected with the base plate in a penetrating way, the other end of the screw guide channel tube is communicated with the fixing plate, and the screw guide channel tube is positioned on one side of the guide marking channel tube; furthermore, the surface of the base plate is consistent with the shape of the bony surface of the human vertebral plate.
Further, the guide marking channel tube includes a first guide marking channel tube, a second guide marking channel tube, a third guide marking channel tube, and a fourth guide marking channel tube, the second guide marking channel tube is located on the same side as the first guide marking channel tube, the third guide marking channel tube is located on the opposite side of the first guide marking channel tube, and the fourth guide marking channel tube is located on the same side as the third guide marking channel tube. Furthermore, the device also comprises a plurality of marking pins and fixing pins.
Further, the base plate comprises a first base plate and a second base plate, and the screw guide channel tube comprises a first screw guide channel tube and a second screw guide channel tube; one end of each of the first guide marking channel tube, the second guide marking channel tube and the first screw guide channel tube is connected with the first substrate in a penetrating mode, the first screw guide channel tube is located between the first guide marking channel tube and the second guide marking channel tube, one end of each of the third guide marking channel tube, the fourth guide marking channel tube and the second screw guide channel tube is connected with the second substrate in a penetrating mode, and the second screw guide channel tube is located between the third guide marking channel tube and the fourth guide marking channel tube.
Furthermore, a first mark hole, a second mark hole, a third mark hole and a fourth mark hole are formed in the fixing plate, the first mark hole is communicated with the other end of the first guide mark channel tube, the second mark hole is communicated with the other end of the second guide mark channel tube, the third mark hole is communicated with the other end of the third guide mark channel tube, and the fourth mark hole is communicated with the other end of the fourth guide mark channel tube.
Furthermore, a first guide hole and a second guide hole are further formed in the fixing plate, the second guide hole is located on one side of the first guide hole, the first guide hole is communicated with one end of the first screw guide channel pipe, and the second guide hole is communicated with one end of the second screw guide channel pipe; furthermore, the first guide hole is arranged at an angle of 25-26 degrees outwards and an angle of 8-9 degrees upwards in the plane of the fixed plate; the second guide holes are arranged in the plane of the fixing plate, are inclined outwards by 25-26 degrees and are inclined upwards by 8-9 degrees.
Furthermore, the fixed plate is an arc-shaped plate, two opposite surfaces of the fixed plate are respectively an inner concave curved surface and an outer convex curved surface, and one ends of the first guide marking channel tube, the second guide marking channel tube, the third guide marking channel tube and the fourth guide marking channel tube are connected to the inner concave curved surface of the fixed plate; further on.
Furthermore, the fixed guide plate further comprises a first connecting piece and a second connecting piece, wherein a first fixing hole is formed in the first connecting piece, a second fixing hole is formed in the second connecting piece, the two sides of the first connecting piece are fixedly connected with the first guide marking channel pipe and the second guide marking channel pipe respectively, and the two sides of the second connecting piece are fixedly connected with the third guide marking channel pipe and the fourth guide marking channel pipe respectively.
Furthermore, the thickness of the channel tube walls of the first guide marking channel tube, the second guide marking channel tube, the third guide marking channel tube and the fourth guide marking channel tube is 1.0-1.3mm, the length of the channel tube walls is 28-32mm, and the inner diameter of the channel is 1.7-2.7 mm.
Further, the inner diameters of the first screw guide channel tube and the second screw guide channel tube are both 2.7 mm.
The beneficial effects of the utility model reside in that: the utility model relates to a lumbar vertebrae vertebral plate cuts bone with cortex bone track screw fixed guide, adopt medical imaging technique, computer technology and 3D print the artificial base plate of emulation of technique according to the state of an illness of different patients and operation mode design, can match present clinical general use artificial vertebral plate and cortex bone orbit technique, the direction mark passageway pipe that the accessible set up simultaneously guides the accurate excision of vertebral plate, and inject the cortex bone screw and put the nail by the advancing nail direction of screw direction passageway pipe, effectively guarantee screw safety, accurate artificial vertebral plate of implantation, the efficiency and the accuracy and the security of operation have been improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic perspective view of a second angle of the present invention;
fig. 3 is a schematic perspective view of a third angle of the present invention;
fig. 4 is a schematic perspective view of a fourth angle of the present invention;
FIG. 5 is a schematic view of the fixed guide of the present invention used to resect a vertebral plate or to secure an artificial vertebral plate;
fig. 6 is a schematic structural view of the fixed guide plate of the present invention in combination with the stylus and the fixing needle.
The reference signs are: 11-a first substrate, 12-a second substrate, 21-a first guide marking channel tube, 22-a second guide marking channel tube, 23-a third guide marking channel tube, 24-a fourth guide marking channel tube, 31-a first screw guide channel tube, 32-a second screw guide channel tube, 4-a fixed plate, 41-a first marking hole, 42-a second marking hole, 43-a third marking hole, 44-a fourth marking hole, 45-a first guiding hole, 46-a second guiding hole, 5-a first connecting piece, 51-a first fixing hole, 6-a second connecting piece, 61-a second fixing hole, 7-a marking pin and 8-a fixing pin.
Detailed Description
In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1 to 6, which are not intended to limit the present invention.
Referring to fig. 1-6, a cortical bone rail screw fixing guide plate for lumbar vertebral plate osteotomy comprises a base plate, a guide marking channel tube, a screw guide channel tube and a fixing plate 4, wherein one end of the guide marking channel tube is connected with the base plate in a penetrating way, the other end of the guide marking channel tube is communicated with the fixing plate 4, one end of the screw guide channel tube is connected with the base plate in a penetrating way, the other end of the screw guide channel tube is communicated with the fixing plate 4, and the screw guide channel tube is positioned at one side of the guide marking channel tube; furthermore, the surface of the base plate is consistent with the shape of the bony surface of the human vertebral plate; the cortical bone rail screw fixing guide plate for lumbar vertebral plate osteotomy further comprises a plurality of marking needles 7 and fixing needles 8. A guide mark channel is formed in the guide mark channel tube, and a screw guide channel is formed in the screw guide channel tube.
The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy in the embodiment adopts a simulated artificial substrate designed according to different patient conditions and operation modes by adopting a medical imaging technology, a computer technology and a 3D printing technology, can match the current clinical common use of the artificial vertebral plate and the cortical bone rail technology, and can simultaneously make a precise edge for vertebral plate excision by implanting the marking needle 7 into the set guide marking channel tube to punch and mark the vertebral plate so as to guide the vertebral plate to be accurately excised; the cortical bone screw is limited to be placed in the screw inserting direction of the screw guide channel tube, so that the safe and accurate implantation of the screw into the artificial vertebral plate is effectively ensured, and the efficiency, the accuracy and the safety of the operation are improved; the surface of the base plate is set to be consistent with the shape of the bony surface of the vertebral plate of a human body, so that the base plate can be tightly attached to the bony surface of the vertebral plate when the vertebral plate is cut by marking, and further, the base plate can be reasonably and accurately cut, and the smooth operation of the operations of patients with vertebral column fracture, degeneration, tumor and the like can be facilitated.
In this embodiment, the guide mark passage tube includes a first guide mark passage tube 21, a second guide mark passage tube 22, a third guide mark passage tube 23 and a fourth guide mark passage tube 24, the second guide mark passage tube 22 is located on the same side of the first guide mark passage tube 21, the third guide mark passage tube 23 is located on the different side of the first guide mark passage tube 21, the fourth guide mark passage tube 24 is located on the same side of the third guide mark passage tube 23, that is, the first guide mark passage tube 21 and the second guide mark passage tube 22 are arranged on the same side and are both located on one side of the lumbar vertebral plate osteotomy cortical bone rail screw fixing guide plate, and the third guide mark passage tube 23 and the fourth guide mark passage tube 24 are arranged on the same side and are both located on the other side of the lumbar vertebral plate osteotomy cortical bone rail screw fixing guide plate; a first mark hole 41, a second mark hole 42, a third mark hole 43 and a fourth mark hole 44 are formed in the fixing plate 4, the first mark hole 41 is communicated with the other end of the first guide mark passage tube 21, the second mark hole 42 is communicated with the other end of the second guide mark passage tube 22, the third mark hole 43 is communicated with the other end of the third guide mark passage tube 23, and the fourth mark hole 44 is communicated with the other end of the fourth guide mark passage tube 24; furthermore, the thickness of the channel tube walls of the first guide marking channel tube 21, the second guide marking channel tube 22, the third guide marking channel tube 23 and the fourth guide marking channel tube 24 are all 1.0-1.3mm, the length is 28-32mm, and the inner diameter of the channel is 1.7-2.7 mm.
In the embodiment, the first guide marking channel tube 21, the second guide marking channel tube 22, the third guide marking channel tube 23, the fourth guide marking channel tube 24, the corresponding first marking hole 41, the corresponding second marking hole 42, the corresponding third marking hole 43, the corresponding fourth marking hole 44 and the corresponding marking needle 7 are matched with the marking needle 7, so that the accurate margin of laminectomy can be marked by punching the vertebral plate, and the vertebral plate can be guided to be accurately resected; when each guide marking channel tube is arranged, the thickness of the channel tube wall is strictly controlled to be 1.0-1.3mm, the length is 28-32mm, the inner diameter of each guide marking channel tube is 1.7-2.7mm, the mark needle 7 with the diameter of 1.5mm or about 1.5mm can be favorably implanted into the guide marking channel tube for punching marking, and the inner diameter of each control channel tube is 1.7-2.7mm, so that the mark needle 7 with the diameter of 1.5-2.5mm can be conveniently and smoothly implanted into the guide marking channel tube.
In this embodiment, the base plates include a first base plate 11 and a second base plate 12, the screw guide channel tubes include a first screw guide channel tube 31 and a second screw guide channel tube 32, and the inner diameters of the first screw guide channel tube 31 and the second screw guide channel tube 32 are both 2.7 mm; one end of each of the first guide marking channel tube 21, the second guide marking channel tube 22 and the first screw guide channel tube 31 is connected with the first substrate 11 in a penetrating manner, the first screw guide channel tube 31 is positioned between the first guide marking channel tube 21 and the second guide marking channel tube 22, one end of each of the third guide marking channel tube 23, the fourth guide marking channel tube 24 and the second screw guide channel tube 32 is connected with the second substrate 12 in a penetrating manner, and the second screw guide channel tube 32 is positioned between the third guide marking channel tube 23 and the fourth guide marking channel tube 24; the fixing plate 4 is further provided with a first guide hole 45 and a second guide hole 46, the second guide hole 46 is located at one side of the first guide hole 45, the first guide hole 45 is communicated with one end of the first screw guide channel tube 31, and the second guide hole 46 is communicated with one end of the second screw guide channel tube 32. Further, the fixed plate 4 is an arc-shaped plate, two opposite surfaces of the fixed plate 4 are respectively an inner concave curved surface and an outer convex curved surface, and one ends of the first guide marking channel tube 21, the second guide marking channel tube 22, the third guide marking channel tube 23 and the fourth guide marking channel tube 24 are connected to the inner concave curved surface of the fixed plate 4; the first guide hole 45 is arranged at an angle of 25-26 degrees outwards and an angle of 8-9 degrees upwards in the plane of the fixing plate 4; the second guiding holes 46 are arranged at 25-26 degrees outwards and 8-9 degrees upwards in the plane of the fixing plate 4.
As shown in fig. 4 to 5, the first guide hole 45 and the second guide hole 46 are symmetrically disposed about a reference plane of symmetry, and both the first guide hole 45 and the second guide hole 46 penetrate the fixing plate 4. The first guide hole 45 and the second guide hole 46 are both inclined outward in the direction from the outer convex curved surface to the inner concave curved surface of the fixing plate 4. The angle between the central axis of the first guide hole 45 and the symmetrical reference plane is 25-26 degrees, and the first guide hole 45 inclines outwards; the angle between the central axis of the second guiding hole 46 and the symmetry reference plane is 25 to 26 °, and the second guiding hole 46 is inclined outward.
Further, the angle of the first guide hole 45 to a plane perpendicular to the reference plane of symmetry is 8 to 9 °, and the first guide hole 45 is inclined upward; the angle of the second guide hole 46 to the plane perpendicular to the reference plane of symmetry is 8-9 deg., and the second guide hole 46 is inclined upward.
In the embodiment, the base plate is arranged into two parts, namely the first base plate 11 and the second base plate 12, so that the fixation guide plate is clamped on the spinous process when the vertebral plate is marked, the vertebral plate can be reasonably and accurately cut off, and the safe and accurate implantation of the artificial vertebral plate is effectively ensured; when the artificial vertebral plate is implanted, the artificial vertebral plate is fixed at the resection part by the fixing guide plate, and then the cortical screw is respectively implanted into the first screw guide channel tube 31 and the second screw guide channel tube 32 through the first guide hole 45 and the second guide hole 46 to safely and accurately implant the artificial vertebral plate into the resection part, so that the smooth operation of the patient operations of the spinal fracture, the degeneration, the tumor and the like is facilitated.
In this embodiment, the directions of the first guide hole 45 and the second guide hole 46 are set according to the positions of the vertebrae of the laminectomy part by using the cortical bone trajectory technology commonly used in clinical practice, so that when the artificial vertebral plate body is fixed by the cortical bone screw, the cortical bone screw can be just screwed in the vertebrae, and the influence of the cortical bone screw on the spinal cord and the influence of the mobility between adjacent vertebrae are avoided.
In this embodiment, the fixed guide plate further includes a first connecting member 5 and a second connecting member 6, the first connecting member 5 is provided with a first fixing hole 51, the second connecting member 6 is provided with a second fixing hole 61, two sides of the first connecting member 5 are respectively and fixedly connected with the first guide marking channel tube 21 and the second guide marking channel tube 22, and two sides of the second connecting member 6 are respectively and fixedly connected with the third guide marking channel tube 23 and the fourth guide marking channel tube 24.
In this embodiment, the two sides of the first connecting member 5 are respectively and fixedly connected with the first guide marking channel tube 21 and the second guide marking channel tube 22, and the two sides of the second connecting member 6 are respectively and fixedly connected with the third guide marking channel tube 23 and the fourth guide marking channel tube 24, so that the stability of the guide plate is remarkably improved, and the guide plate is further beneficial to reasonably and accurately excising vertebral plates, and is convenient for smooth operation of patients with spinal fracture, degeneration, tumors and the like.
The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.
Claims (10)
1. The utility model provides a lumbar vertebrae vertebral plate cuts bone and fixes baffle with cortex bone track screw which characterized in that: the guide marking device comprises a base plate, a guide marking channel tube, a screw guide channel tube and a fixing plate, wherein one end of the guide marking channel tube is in penetrating connection with the base plate, the other end of the guide marking channel tube is communicated with the fixing plate, one end of the screw guide channel tube is in penetrating connection with the base plate, the other end of the screw guide channel tube is communicated with the fixing plate, and the screw guide channel tube is positioned on one side of the guide marking channel tube.
2. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 1, wherein: the guide marking channel tube comprises a first guide marking channel tube, a second guide marking channel tube, a third guide marking channel tube and a fourth guide marking channel tube, and the first guide marking channel tube and the second guide marking channel tube are positioned on one side of the cortical bone rail screw fixing guide plate for lumbar vertebral plate osteotomy; the third guide marking channel tube and the fourth guide marking channel tube are positioned on the other side of the cortical bone rail screw fixing guide plate for lumbar vertebral plate osteotomy.
3. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 1, wherein: the surface of the base plate is consistent with the bony surface of the vertebral plate of the human body.
4. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 2, wherein: the base plate comprises a first base plate and a second base plate, and the screw guide channel tube comprises a first screw guide channel tube and a second screw guide channel tube; one end of each of the first guide marking channel tube, the second guide marking channel tube and the first screw guide channel tube is connected with the first substrate in a penetrating mode, the first screw guide channel tube is located between the first guide marking channel tube and the second guide marking channel tube, one end of each of the third guide marking channel tube, the fourth guide marking channel tube and the second screw guide channel tube is connected with the second substrate in a penetrating mode, and the second screw guide channel tube is located between the third guide marking channel tube and the fourth guide marking channel tube.
5. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 4, wherein: the fixed plate is provided with a first mark hole, a second mark hole, a third mark hole and a fourth mark hole, the first mark hole is communicated with the other end of the first guide mark channel pipe, the second mark hole is communicated with the other end of the second guide mark channel pipe, the third mark hole is communicated with the other end of the third guide mark channel pipe, and the fourth mark hole is communicated with the other end of the fourth guide mark channel pipe.
6. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 4, wherein: the fixing plate is further provided with a first guide hole and a second guide hole, the second guide hole is located on one side of the first guide hole, the first guide hole is communicated with one end of the first screw guide channel pipe, and the second guide hole is communicated with one end of the second screw guide channel pipe.
7. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 2, wherein: the fixed plate is an arc-shaped plate, two opposite surfaces of the fixed plate are respectively provided with an inner concave curved surface and an outer convex curved surface, and one ends of the first guide marking channel tube, the second guide marking channel tube, the third guide marking channel tube and the fourth guide marking channel tube are connected to the inner concave curved surface of the fixed plate.
8. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 2, wherein: the fixed guide plate further comprises a first connecting piece and a second connecting piece, wherein a first fixing hole is formed in the first connecting piece, a second fixing hole is formed in the second connecting piece, the two sides of the first connecting piece are fixedly connected with the first guide marking channel pipe and the second guide marking channel pipe respectively, and the two sides of the second connecting piece are fixedly connected with the third guide marking channel pipe and the fourth guide marking channel pipe respectively.
9. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 2, wherein: the thickness of the channel tube walls of the first guide marking channel tube, the second guide marking channel tube, the third guide marking channel tube and the fourth guide marking channel tube is 1.0-1.3mm, the length of the channel tube walls is 28-32mm, and the inner diameter of each guide marking channel tube is 1.7-2.7 mm.
10. The cortical bone rail screw fixing guide plate for the lumbar vertebral plate osteotomy of claim 4, wherein: the inner diameters of the first screw guide channel tube and the second screw guide channel tube are both 2.7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190613.7U CN211911720U (en) | 2020-02-20 | 2020-02-20 | Cortex bone track screw fixation guide plate for lumbar vertebra vertebral plate osteotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020190613.7U CN211911720U (en) | 2020-02-20 | 2020-02-20 | Cortex bone track screw fixation guide plate for lumbar vertebra vertebral plate osteotomy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211911720U true CN211911720U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020190613.7U Active CN211911720U (en) | 2020-02-20 | 2020-02-20 | Cortex bone track screw fixation guide plate for lumbar vertebra vertebral plate osteotomy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211911720U (en) |
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2020
- 2020-02-20 CN CN202020190613.7U patent/CN211911720U/en active Active
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