CN107753160B - Mortise and tenon type artificial vertebral body - Google Patents
Mortise and tenon type artificial vertebral body Download PDFInfo
- Publication number
- CN107753160B CN107753160B CN201711133799.1A CN201711133799A CN107753160B CN 107753160 B CN107753160 B CN 107753160B CN 201711133799 A CN201711133799 A CN 201711133799A CN 107753160 B CN107753160 B CN 107753160B
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- CN
- China
- Prior art keywords
- tenon
- mortise
- angle
- wall body
- artificial vertebral
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
- A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
Abstract
The invention discloses a mortise-tenon type artificial vertebral body, which comprises an upper connecting body, a lower connecting body and at least one supporting body, wherein the upper connecting body and the lower connecting body are centrosymmetric, and the at least one supporting body is arranged between the two connecting bodies; the connecting body is connected with the supporting bodies and the adjacent supporting bodies through mortise and tenon joints. The invention provides an artificial vertebral body with a mortise and tenon structure, which has high stability, can be used by different users, can select different numbers of supporting parts to form a proper length to be more fit with the original vertebrae, avoids connection failure caused by stress concentration at a fixed position, improves the fit degree and reliability of the artificial vertebral body and a human body, can reduce the load on the vertebrae of the human body, and reduces the occurrence of complications such as degeneration of the segments of the vertebrae of the human body.
Description
Technical Field
The invention belongs to the field of artificial prostheses, and particularly relates to a mortise and tenon type artificial vertebral body.
Background
Vertebral body tumors, severe comminuted fractures, and certain infectious diseases such as tuberculosis often cause destruction of the vertebral body and may result in spinal cord, nerve damage or collapse of the vertebral segments and angulation of the spine. In those with obvious neurological dysfunction or angulation, a vertebrotomy is often required.
The appearance of the artificial vertebral body provides a reliable treatment method for the patients with spinal tumor, spinal tuberculosis and trauma. Current artificial vertebral body substitutes can be broadly divided into filling type, such as bone cement, and supportive, such as titanium mesh, and supportive fixation types. The biomechanical stability varies due to the different designs. The biomechanical experimental evaluation and clinical application show that the conventional artificial vertebral body can cause the middle plate of the vertebral body to collapse in the bending direction of the axial compressor, and the movement of a user can be limited.
Disclosure of Invention
The invention provides a mortise and tenon type artificial vertebral body, which aims to overcome the defects in the prior art.
The technical scheme of the invention is as follows:
the mortise and tenon type artificial vertebral body comprises an upper connecting body, a lower connecting body and at least one supporting body, wherein the upper connecting body and the lower connecting body are in central symmetry, and the supporting body is arranged between the two connecting bodies; the connecting body is connected with the supporting bodies and the adjacent supporting bodies through mortise and tenon joints.
The connecting body is a hollow cube with upper and lower ends being opened, a platy tenon is formed at the top end of the front wall body, a bevel angle tenon is formed at the top ends of corners formed by the left wall body, the rear wall body and the right wall body, the rear wall body, the gaps between the two bevel tenons form a tenon groove, and a plurality of teeth are formed at the lower end surfaces of the left wall body and the right wall body.
The four walls of the connector form connector through holes.
And the four walls of the connecting body are in arc transition connection.
The support body is a hollow cube with upper and lower ends being open, the bottom end of the front wall body and the top end of the rear wall body form plate-shaped connecting tenons, the corner top ends of the joints of the front wall body, the left wall body and the right arm body form angle-folded upper connecting angle tenons, and the corner bottom ends of the joints of the rear wall body, the left wall body and the right arm body form angle-folded lower connecting angle tenons; a tenon groove is formed between the two upper connecting angle tenons and the gap between the two lower connecting angle tenons; the gap between the upper connecting angle tenon and the upper connecting tenon, and the gap between the lower connecting angle tenon and the lower connecting tenon form an angle tenon groove.
And support body through holes are formed in the four walls of the support body.
And the four walls of the support body are in arc transition connection.
The tenon groove is matched with the tenon in shape and size, and the corner tenon groove is matched with the corner tenon in shape and size.
The length, the width and the wall thickness of the connecting body and the supporting body are the same.
The tenon and the connecting tenon are identical in shape and size; the shape and the size of the angle tenon, the upper connecting angle tenon and the lower connecting angle tenon are the same.
The beneficial effects of the invention are as follows:
the invention provides an artificial vertebral body with a mortise and tenon structure, which has high stability, can be used by different users, can select different numbers of supporting parts to form a proper length to be more fit with the original vertebrae, avoids connection failure caused by stress concentration at a fixed position, improves the fit degree and reliability of the artificial vertebral body and a human body, can reduce the load on the vertebrae of the human body, and reduces the occurrence of complications such as degeneration of the segments of the vertebrae of the human body.
Drawings
Fig. 1 is an exploded construction schematic view (front view) of the present invention;
FIG. 2 is an exploded view (left side view) of the present invention;
FIG. 3 is a schematic perspective view of a connector according to the present invention;
FIG. 4 is a left side view of the connector of the present invention;
FIG. 5 is a rear view of the connector of the present invention;
FIG. 6 is a top view of a connector of the present invention;
FIG. 7 is a schematic perspective view of a support body according to the present invention;
FIG. 8 is a right side view of the support body of the present invention;
FIG. 9 is a front view of a support body of the present invention;
fig. 10 is a top view of a support body according to the present invention.
Wherein:
1. connector 2 support
3. Connecting body through hole 4 tenon
5. 6 teeth of angle tenon
7. Mortice 8 support body through hole
9. Connecting angle tenon on connecting tenon 10
11. Lower connection angle tenon 12 tenon groove
13. The corner tenon groove.
Detailed Description
The mortise and tenon type artificial vertebral body of the invention is described in detail below with reference to the attached drawings and examples:
as shown in fig. 1-10, a mortise-tenon type artificial vertebral body comprises an upper connector 1 and a lower connector 1 which are symmetrical in center and at least one supporting body 2 arranged between the two connectors 1; the connecting body 1 is connected with the supporting body 2 through mortise and tenon joints and the adjacent supporting bodies 2 are connected with each other.
The connector 1 is a hollow cube with open upper and lower ends, a plate-shaped tenon 4 is formed at the top end of a front wall body, a folded angle type angular tenon 5 is formed at the top ends of corners formed by a left wall body, a rear wall body and a right wall body, the two angular tenons 5 form a tenon groove 7 in a gap, and a plurality of teeth 6 are formed on the lower end surfaces of the left wall body and the right wall body.
The four walls of the connector 1 are respectively provided with a connector through hole 3.
The four walls of the connector 1 are in arc transition connection.
The supporting body 2 is a hollow cube with open upper and lower ends, the bottom end of the front wall body and the top end of the rear wall body form a platy connecting tenon 9, the corner top ends of the joints of the front wall body, the left wall body and the right arm body form a bevel-shaped upper connecting angle tenon 10, and the corner bottom ends of the joints of the rear wall body, the left wall body and the right arm body form a bevel-shaped lower connecting angle tenon 11; the gap between the two upper connection angle tenons 10 and between the two lower connection angle tenons 11 forms a tenon groove 12; the gap between the upper connecting angle tenon 10 and the upper connecting tenon 9, and between the lower connecting angle tenon 11 and the lower connecting tenon 9 forms an angle tenon groove 13.
The four walls of the supporting body 2 are respectively provided with a supporting body through hole 8.
The four walls of the support body 2 are in arc transition connection.
The tenon groove 12 is matched with the tenon 4 in shape and size, and the corner tenon groove 13 is matched with the corner tenon 5 in shape and size.
The length, width and wall thickness of the connector 1 and the support body 2 are the same.
The tenon 4 and the connecting tenon 9 are the same in shape and size; the shape and the size of the angle tenon 5, the upper connecting angle tenon 10 and the lower connecting angle tenon 11 are the same.
The connecting body 1 is used for connecting an upper adjacent vertebral body and a lower adjacent vertebral body in a human skeleton.
The application method of the invention comprises the following steps:
sequentially assembling the upper connector, the supporting member, and the lower connector with reference to fig. 1 and 2; during assembly, the tenon 4 or the connecting tenon 9 is inserted into the corresponding tenon groove 12; the angle tenon 5, the upper connecting angle tenon 10 or the lower connecting angle tenon 11 are inserted into the corresponding angle tenon groove 13;
with reference to fig. 1 and 2, according to different user requirements, a proper number of support components are selected to form a proper length;
finally, referring to fig. 1 and 2, bone grafting is added into the intermediate space of the artificial vertebral body.
The invention provides an artificial vertebral body with a mortise and tenon structure, which has high stability, can be used by different users, can select different numbers of supporting parts to form a proper length to be more fit with the original vertebrae, avoids connection failure caused by stress concentration at a fixed position, improves the fit degree and reliability of the artificial vertebral body and a human body, can reduce the load on the vertebrae of the human body, and reduces the occurrence of complications such as degeneration of the segments of the vertebrae of the human body.
Claims (8)
1. The utility model provides an artifical centrum of mortise and tenon type which characterized in that: the artificial vertebral body comprises an upper connecting body (1) and a lower connecting body (2) which are centrosymmetric and at least one supporting body (2) arranged between the two connecting bodies (1); the connecting bodies (1) are connected with the supporting bodies (2) through mortise and tenon joints;
the connecting body (1) is a hollow cube with open upper and lower ends, a platy tenon (4) is formed at the top end of a front wall body, a folded angle type tenon (5) is formed at the top ends of corners formed by a left wall body, a rear wall body and a right wall body, the two tenon (5) form a tenon groove (7), and a plurality of teeth (6) are formed at the lower end surfaces of the left wall body and the right wall body;
the support body (2) is a hollow cube with open upper and lower ends, the bottom end of the front wall body and the top end of the rear wall body form plate-shaped connecting tenons (9), the corner top ends of the joints of the front wall body, the left wall body and the right wall body form angle-folded upper connecting angle tenons (10), and the corner bottom ends of the joints of the rear wall body, the left wall body and the right wall body form angle-folded lower connecting angle tenons (11); a tenon groove (12) is formed by a gap between the two upper connecting angle tenons (10) and a gap between the two lower connecting angle tenons (11); the gap between the upper connecting angle tenon (10) and the upper connecting tenon (9) and the gap between the lower connecting angle tenon (11) and the lower connecting tenon (9) form an angle tenon groove (13).
2. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the four walls of the connector (1) are provided with connector through holes (3).
3. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the four walls of the connector (1) are in arc transition connection.
4. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the four walls of the supporting body (2) are respectively provided with a supporting body through hole (8).
5. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the four walls of the support body (2) are in arc transition connection.
6. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the tenon groove (12) is matched with the tenon (4) in shape and size, and the corner tenon groove (13) is matched with the corner tenon (5) in shape and size.
7. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the length, the width and the wall thickness of the connecting body (1) and the supporting body (2) are the same.
8. The mortise and tenon type artificial vertebral body according to claim 1, characterized in that: the tenon (4) and the connecting tenon (9) are the same in shape and size; the shape and the size of the angle tenon (5), the upper connecting angle tenon (10) and the lower connecting angle tenon (11) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133799.1A CN107753160B (en) | 2017-11-16 | 2017-11-16 | Mortise and tenon type artificial vertebral body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711133799.1A CN107753160B (en) | 2017-11-16 | 2017-11-16 | Mortise and tenon type artificial vertebral body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107753160A CN107753160A (en) | 2018-03-06 |
| CN107753160B true CN107753160B (en) | 2023-08-25 |
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ID=61278921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711133799.1A Active CN107753160B (en) | 2017-11-16 | 2017-11-16 | Mortise and tenon type artificial vertebral body |
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| Country | Link |
|---|---|
| CN (1) | CN107753160B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157627B (en) * | 2017-05-17 | 2023-12-29 | 暨南大学 | Mortise and tenon type thoracolumbar intervertebral fixer |
| CN110433015A (en) * | 2018-05-02 | 2019-11-12 | 曾昌和 | A kind of osteoporotic vertebral bodies elasticity intervertebral implant devices |
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| CN101232851A (en) * | 2005-06-27 | 2008-07-30 | 华沙整形外科股份有限公司 | Intervertebral prosthetic device for spinal stabilization and method of implanting same |
| CN102292054A (en) * | 2008-12-17 | 2011-12-21 | 斯恩蒂斯有限公司 | Full-metal dampening intervertebral implant |
| CN204379490U (en) * | 2014-10-16 | 2015-06-10 | 广州丰祥生物科技有限公司 | A kind of hollow artificial bone |
| CN205598056U (en) * | 2016-04-19 | 2016-09-28 | 西安交通大学第二附属医院 | Artifical cervical vertebra joint suitable for lower cervical vertebra |
| CN107157627A (en) * | 2017-05-17 | 2017-09-15 | 暨南大学 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| CN107280826A (en) * | 2017-06-01 | 2017-10-24 | 北京工业大学 | Joinery and its construction brace rod intravascular stent |
| CN208910600U (en) * | 2017-11-16 | 2019-05-31 | 天津正天医疗器械有限公司 | A kind of mortise and tenon type artificial vertebral body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7575600B2 (en) * | 2004-09-29 | 2009-08-18 | Kyphon Sarl | Artificial vertebral disk replacement implant with translating articulation contact surface and method |
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2017
- 2017-11-16 CN CN201711133799.1A patent/CN107753160B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6159211A (en) * | 1998-10-22 | 2000-12-12 | Depuy Acromed, Inc. | Stackable cage system for corpectomy/vertebrectomy |
| WO2000074605A1 (en) * | 1999-06-02 | 2000-12-14 | Henry Graf | Intervertebral implant and assembly for setting same |
| CN1662186A (en) * | 2002-06-19 | 2005-08-31 | Sdgi控股股份有限公司 | Adjustable surgical guide and method of treating vertebral members |
| CN101232851A (en) * | 2005-06-27 | 2008-07-30 | 华沙整形外科股份有限公司 | Intervertebral prosthetic device for spinal stabilization and method of implanting same |
| CN102292054A (en) * | 2008-12-17 | 2011-12-21 | 斯恩蒂斯有限公司 | Full-metal dampening intervertebral implant |
| CN204379490U (en) * | 2014-10-16 | 2015-06-10 | 广州丰祥生物科技有限公司 | A kind of hollow artificial bone |
| CN205598056U (en) * | 2016-04-19 | 2016-09-28 | 西安交通大学第二附属医院 | Artifical cervical vertebra joint suitable for lower cervical vertebra |
| CN107157627A (en) * | 2017-05-17 | 2017-09-15 | 暨南大学 | Mortise and tenon type Thoracolumbar disk intervertebral fixer |
| CN107280826A (en) * | 2017-06-01 | 2017-10-24 | 北京工业大学 | Joinery and its construction brace rod intravascular stent |
| CN208910600U (en) * | 2017-11-16 | 2019-05-31 | 天津正天医疗器械有限公司 | A kind of mortise and tenon type artificial vertebral body |
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|---|---|
| CN107753160A (en) | 2018-03-06 |
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