CN2584140Y - Artificial pyramid - Google Patents

Artificial pyramid Download PDF

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Publication number
CN2584140Y
CN2584140Y CN02245144U CN02245144U CN2584140Y CN 2584140 Y CN2584140 Y CN 2584140Y CN 02245144 U CN02245144 U CN 02245144U CN 02245144 U CN02245144 U CN 02245144U CN 2584140 Y CN2584140 Y CN 2584140Y
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China
Prior art keywords
vertebral body
hole
pyramid
utility
artificial
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Expired - Fee Related
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CN02245144U
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Chinese (zh)
Inventor
徐昌华
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Individual
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Individual
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Priority to CN02245144U priority Critical patent/CN2584140Y/en
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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
    • 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

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

Abstract

The utility model relates to an artificial pyramid, which is composed of a pyramid body (1), a pyramid body end cover (2) and a pyramid body fixer (3), wherein, the pyramid body (1) is a hollow cylinder; the outer surface of the cylinder is provided with screw threads; fixing holes (4) are positioned on the cylinder. The pyramid body end cover (2) is provided with a hollow convex column; a convex part (5) is provided with a hollow cylinder; the inner surface is provided with the screw threads which are matched with the pyramid body (1); fixing screw holes (6) are positioned on the cylinder, the shape of the end surface of the bottom (7) is same with or similar to the cross section of a vertebrae, and a pyramid-shaped body (8) is positioned on the end surface; the pyramid body fixer (3) is a sliver-shaped plate, the middle part of the sliver-shaped plate is provided with a sliver-shaped hole (9), and two ends are provided with a tapping screw hole (10) and a fastening screw hole (11). The weight is bore by the pyramid body in the utility model, and the utility model is the artificial pyramid which is formed by the inosculation of autogenous bones. The utility model has the advantages of strong bearing capacity, high stability, difficult transitional movement, and high safety and reliability. The utility model solves the problems existing in the implantation bone blocks that the bearing capacity is poor, the bone blocks can be moved, the stability is poor after the excision of ill pyramids, etc. The utility model can be used for treating the diseases, such as cervical vertebrae, thoracic vertebrae, lumbar vertebrae, etc.

Description

Artificial vertebral body
Technical field: this utility model belongs to medical instruments field, particularly relates to a kind of artificial vertebral body.
Technical background: need with plant bone mass and inner fixer during diseases such as treatment cervical vertebra, thoracic vertebra, fracture of lumbar vertebral body, tuberculosis of spine, vertebral tumor, vertebral body dysplasia, steel plate, bolt structure vertebral body the place ahead inner fixer of existing domestic and international application, exist following problems: behind the sick vertebral resection, the easy sliding transfer of passive plant bone mass, influencing bone merges, the load-bearing stress difference, instability, easy damaged spinal cord or trunk.
The purpose of this utility model is to provide a kind of artificial vertebral body, its safety, reliable, and implantable bone piece in the artificial vertebral body becomes from the body bone and merges artificial vertebral body, and weight capacity is strong, and good stability is difficult for sliding transfer.
Technology contents: the purpose of this utility model realizes by following technical proposals:
Artificial vertebral body of the present utility model is made up of vertebral body (1), vertebral body end cap (2) and vertebral body holder (3), and wherein, vertebral body (1) is a hollow cylinder, and cylindrical outer surface has screw thread, and fixing hole (4) is arranged on the cylinder; Vertebral body end cap (2) is hollow convex post, and protuberance (5) is a hollow cylinder, and inner surface has the screw thread that matches with vertebral body (1), and fixing threaded hole (6) is arranged on the cylinder, and the end surface shape of bottom (7) is identical with the vertebra cross section or close, and cone (8) is arranged on the end face; Vertebral body holder (3) is an elongated plates, and its middle part has strip hole (9), two ends that tapping screw hole (10) and trip bolt hole (11) are arranged.
In the such scheme, the fixing hole (4) on the vertebral body (1) is strip or round thread hole; When fixing hole (4) is the round thread hole, adjustment hole (12) is arranged on the vertebral body (1).
In the such scheme, the length of vertebral body (1) is 10-30mm, and diameter is 10-24mm, and the hollow parts diameter is 5-16mm.
In the such scheme, the end face major axis of vertebral body end cap (2) is 15-50mm, and minor axis is 12-35mm, and protuberance (5) length is 3-11mm, and diameter is 12-35mm.
In the such scheme, vertebral body holder (3) length (a) is 31-128mm, width (e) is 10-18mm, thickness (δ) 2-5mm, tapping screw hole (10) diameter (φ) is 4.3-8.2mm, trip bolt hole (11) diameter (M) is 2-5mm, strip hole (9) straight length (c) is 10-20mm, width is 3-4mm, and the distance (b) on the center of circle, tapping screw hole (10) to edges of boards edge is 7-14mm, and the distance (1) between tapping screw hole (10) and the center of circle, trip bolt hole (11) is 7-12mm.
Artificial vertebral body of the present utility model is by the vertebral body load-bearing, hollow parts can be packed into from body bone piece (comprising broken bone) simultaneously, become from the body bone and merge artificial vertebral body, weight capacity is strong, good stability is difficult for sliding transfer, safety, reliable, solve problems such as implantable bone piece weight capacity is poor, the bone piece moves, sick vertebra excision rear stability difference, can be used for treating diseases such as cervical vertebra, thoracic vertebra, fracture of lumbar vertebral body, tuberculosis of spine, vertebral tumor, vertebral body dysplasia.
Description of drawings: be described in further detail this utility model below in conjunction with drawings and Examples.
Fig. 1 is the sketch map of this utility model thoracic vertebra vertebral body or lumbar vertebra.
Fig. 2 is the cross-sectional schematic of overlooking of Fig. 1.
Fig. 3 is the sketch map of thoracic vertebra vertebral body end cap on this utility model.
Fig. 4 is the schematic top plan view of Fig. 3.
Fig. 5 is the sketch map of thoracic vertebra vertebral body end cap under this utility model.
Fig. 6 is the schematic top plan view of Fig. 5.
Fig. 7 is the sketch map of this utility model lumbar vertebra end cap.
Fig. 8 is the schematic top plan view of Fig. 7.
Fig. 9 is the sketch map of this utility model thoracic vertebra vertebral body or lumbar vertebra holder.
Figure 10 is that sketch map is looked on the left side of Fig. 9.
Figure 11 is the scheme of installation of this utility model thoracic vertebra artificial vertebral body or lumbar vertebra artificial vertebral body.
Figure 12 is that partial schematic diagram is looked on the left side of Figure 11.
Figure 13 is the sketch map of this utility model cervical vertebral body.
Figure 14 is that the A-A of Figure 13 overlooks cross-sectional schematic.
Figure 15 is that the B-B of Figure 13 overlooks cross-sectional schematic.
Figure 16 is the sketch map of this utility model cervical vertebral body end cap.
Figure 17 is the schematic top plan view of Figure 16.
Figure 18 is the scheme of installation of this utility model cervical vertebra artificial vertebral body.
Figure 19 is that sketch map is looked on the right side of Figure 18.
Vertebral body 1 illustrated in figures 1 and 2 can be used for thoracic vertebra or lumbar vertebra artificial vertebral body, is hollow cylinder, and cylindrical outer surface has screw thread, and four strip fixing holes 4 are arranged on the cylinder.The length of vertebral body 1 is 15-25mm, and diameter is 16-24mm, and the hollow parts diameter is 10-16mm.
Fig. 3 and vertebral body end cap 2 shown in Figure 4 can be used for the thoracic vertebra artificial vertebral body, are hollow convex post, protuberance 5 is a hollow cylinder, and inner surface has the screw thread that matches with vertebral body 1, and fixing threaded hole 6 is arranged on the cylinder, the end surface shape of bottom 7 is identical with last thoracic vertebra vertebra cross section, and two cones 8 are arranged on the end face.The end face major axis of vertebral body end cap 2 is 25-30mm, and minor axis is 18-22mm, and protuberance 5 length are 3-5mm, and diameter is 18-22mm.
Fig. 5 and vertebral body end cap 2 shown in Figure 6 can be used for thoracic vertebra artificial vertebral body down, are hollow convex post, protuberance 5 is a hollow cylinder, and inner surface has the screw thread that matches with vertebral body 1, and fixing threaded hole 6 is arranged on the cylinder, the end surface shape of bottom 7 is identical with following thoracic vertebra vertebra cross section, and two cones 8 are arranged on the end face.The end face major axis of vertebral body end cap 2 is 25-30mm, and minor axis is 22-27mm, and protuberance 5 length are 3-5mm, and diameter is 20-25mm.
Fig. 7 and vertebral body end cap 2 shown in Figure 8 can be used for the lumbar vertebra artificial vertebral body, are hollow convex post, protuberance 5 is a hollow cylinder, and inner surface has the screw thread that matches with vertebral body 1, and fixing threaded hole 6 is arranged on the cylinder, the end surface shape of bottom 7 is identical with lumbar vertebra vertebra cross section, and two cones 8 are arranged on the end face.The end face major axis of vertebral body end cap 2 is 45-50mm, and minor axis is 28-35mm, and protuberance 5 length are 8-11mm, and diameter is 28-35mm.
Fig. 9 and vertebral body holder 3 shown in Figure 10, can be used for cervical vertebra, thoracic vertebra or lumbar vertebra artificial vertebral body, be elongated plates, there is a strip hole 9 at its middle part, there are two tapping screw holes 10 at two ends, and a trip bolt hole 11 is respectively arranged between tapping screw hole 10 and the strip hole 9.Vertebral body holder 3 length a are 31-128mm, width e is 10-18mm, thickness δ 2-5mm, tapping screw hole 10 diameter phi are 4.3-8.2mm, trip bolt hole 11 diameter M are 2-5mm, and strip hole 9 straight length c are 10-20mm, and width is 3-4mm, the distance b on 10 centers of circle, tapping screw hole to edges of boards edge is 7-14mm, and the distance 1 between the tapping screw hole 10 and 11 centers of circle, trip bolt hole is 7-12mm.
Figure 11 and shown in Figure 12 be the scheme of installation of thoracic vertebra artificial vertebral body or lumbar vertebra artificial vertebral body.Among the figure, vertebral body 1 links to each other with two vertebral body end caps 2 by screw thread; Two vertebral body end caps 2 link to each other with the vertebra at vertebral body 1 two ends respectively, two cones 8 on vertebral body end cap 2 end faces insert in the vertebra, make vertebral body 1 and vertebra keep stable, be difficult for sliding transfer, two hold-down screws 13 are by the fixing threaded hole 6 on the vertebral body end cap 2, make vertebral body 1 and vertebral body end cap 2 keep stable, be difficult for rotational displacement.For vertebral body 1 and vertebra further are maintained fixed, be difficult for moving up and down dislocation, insert in the vertebra at vertebral body 1 two ends by the tapping screw hole on the vertebral body holder 3 10 by two tapping screws 14, a bolt 15 is fixed on vertebral body 1 on the vertebral body holder 3 by strip hole 9 on the vertebral body holder 3 and the strip fixing hole 4 on the vertebral body 1.Strip hole 9 and the strip fixing hole 4 on the vertebral body 1 on the vertebral body holder 3 also are used to adjust vertebral body 1, the strip hole 9 that strip fixing hole 4 is aimed on the vertebral body holder 3.Two trip bolts 16 trip bolt hole 11 on the vertebral body holder 3 of packing into, and push down tapping screw 14 respectively, prevent that it from getting loose.
Figure 13, Figure 14 and vertebral body 1 shown in Figure 15 can be used for the cervical vertebra artificial vertebral body, are hollow cylinder, and cylindrical outer surface has screw thread, and four round thread fixing holes 4 and four adjustment holes 12 are arranged on the cylinder.The length of vertebral body 1 is 10-15mm, and diameter is 10-12mm, and the hollow parts diameter is 5-8mm.
Figure 16 and vertebral body end cap 2 shown in Figure 17 can be used for the cervical vertebra artificial vertebral body, are hollow convex post, protuberance 5 is a hollow cylinder, and inner surface has the screw thread that matches with vertebral body 1, and fixing threaded hole 6 is arranged on the cylinder, the end surface shape of bottom 7 is identical with cervical vertebra vertebra cross section, and two cones 8 are arranged on the end face.The end face major axis of vertebral body end cap 2 is 15-20mm, and minor axis is 12-18mm, and protuberance 5 length are 3-5mm, and diameter is 12-18mm.
Figure 18 and shown in Figure 19 be the scheme of installation of cervical vertebra artificial vertebral body.Among the figure, vertebral body 1 links to each other with two vertebral body end caps 2 by screw thread; Two vertebral body end caps 2 link to each other with the vertebra at vertebral body 1 two ends respectively, two cones 8 on vertebral body end cap 2 end faces insert in the vertebra, make vertebral body 1 and vertebra keep stable, be difficult for sliding transfer, two hold-down screws 13 are by the fixing threaded hole 6 on the vertebral body end cap 2, make vertebral body 1 and vertebral body end cap 2 keep stable, be difficult for rotational displacement.For vertebral body 1 and vertebra further are maintained fixed, be difficult for moving up and down dislocation, insert in the vertebra at vertebral body 1 two ends by the tapping screw hole on the vertebral body holder 3 10 by two tapping screws 14, a bolt 15 is fixed on vertebral body 1 on the vertebral body holder 3 by strip hole 9 on the vertebral body holder 3 and the round thread fixing hole 4 on the vertebral body 1.Strip hole 9 on the vertebral body holder 3 and the adjustment hole 12 on the vertebral body 1 are used to adjust vertebral body 1, the strip hole 9 that round thread fixing hole 4 is aimed on the vertebral body holder 3.Two trip bolts 16 trip bolt hole 11 on the vertebral body holder 3 of packing into, and push down tapping screw 14 respectively, prevent that it from getting loose.

Claims (5)

1. an artificial vertebral body is characterized in that being made up of vertebral body (1), vertebral body end cap (2) and vertebral body holder (3), and wherein, vertebral body (1) is a hollow cylinder, and cylindrical outer surface has screw thread, and fixing hole (4) is arranged on the cylinder; Vertebral body end cap (2) is hollow convex post, and protuberance (5) is a hollow cylinder, and inner surface has the screw thread that matches with vertebral body (1), and fixing threaded hole (6) is arranged on the cylinder, and the end surface shape of bottom (7) is identical with the vertebra cross section or close, and cone (8) is arranged on the end face; Vertebral body holder (3) is an elongated plates, and its middle part has strip hole (9), two ends that tapping screw hole (10) and trip bolt hole (11) are arranged.
2. artificial vertebral body according to claim 1 is characterized in that the fixing hole (4) on the vertebral body (1) is strip or round thread hole; When fixing hole (4) is the round thread hole, adjustment hole (12) is arranged on the vertebral body (1).
3. artificial vertebral body according to claim 1 and 2, the length that it is characterized in that vertebral body (1) is 10-30mm, and diameter is 10-24mm, and the hollow parts diameter is 5-16mm.
4. artificial vertebral body according to claim 1, the end face major axis that it is characterized in that vertebral body end cap (2) is 15-50mm, and minor axis is 12-35mm, and protuberance (5) length is 3-11mm, and diameter is 12-35mm.
5. artificial vertebral body according to claim 1, it is characterized in that vertebral body holder (3) length (a) is 31-128mm, width (e) is 10-18mm, thickness (6) 2-5mm, tapping screw hole (10) diameter (φ) is 4.3-8.2mm, trip bolt hole (11) diameter (M) is 2-5mm, strip hole (9) straight length (c) is 10-20mm, width is 3-4mm, the distance (b) on the center of circle, tapping screw hole (10) to edges of boards edge is 7-14mm, and the distance (1) between tapping screw hole (10) and the center of circle, trip bolt hole (11) is 7-12mm.
CN02245144U 2002-12-16 2002-12-16 Artificial pyramid Expired - Fee Related CN2584140Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN02245144U CN2584140Y (en) 2002-12-16 2002-12-16 Artificial pyramid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN02245144U CN2584140Y (en) 2002-12-16 2002-12-16 Artificial pyramid

Publications (1)

Publication Number Publication Date
CN2584140Y true CN2584140Y (en) 2003-11-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901854B (en) * 2003-12-10 2010-05-12 公理医学脊骨公司 Method and apparatus for replacing a damaged spinal disc
EP3498205A4 (en) * 2016-08-10 2020-03-25 Beijing AK Medical Co., Ltd. Artificial vertebral body fixing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901854B (en) * 2003-12-10 2010-05-12 公理医学脊骨公司 Method and apparatus for replacing a damaged spinal disc
CN101816596B (en) * 2003-12-10 2013-07-24 公理医学脊骨公司 Apparatus for replacing a damaged spinal disc
EP3498205A4 (en) * 2016-08-10 2020-03-25 Beijing AK Medical Co., Ltd. Artificial vertebral body fixing system
US10856995B2 (en) 2016-08-10 2020-12-08 Beijing Ak Medical Co., Ltd Artificial vertebral fixing system

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20031105

Termination date: 20101216