CN106821551B - Casing type osteotomy segment diaphysis prosthesis - Google Patents
Casing type osteotomy segment diaphysis prosthesis Download PDFInfo
- Publication number
- CN106821551B CN106821551B CN201710220674.6A CN201710220674A CN106821551B CN 106821551 B CN106821551 B CN 106821551B CN 201710220674 A CN201710220674 A CN 201710220674A CN 106821551 B CN106821551 B CN 106821551B
- Authority
- CN
- China
- Prior art keywords
- blind hole
- sticking patch
- prosthese
- plug
- handle
- Prior art date
- 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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Links
- 210000003275 diaphysis Anatomy 0.000 title abstract 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 2
- 210000000988 bone and bone Anatomy 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- A61F2/28—Bones
-
- 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a sleeve type osteotomy segment bone stem prosthesis, which belongs to the field of medical instruments and comprises a first prosthesis, a second prosthesis and a patch, wherein the first prosthesis comprises an intramedullary handle a and a connecting block, the lower end of the intramedullary handle a is fixedly connected with the upper end of the connecting block, the lower end of the connecting block is provided with a blind hole, the diameter of the connecting block is larger than that of the intramedullary handle a, the second prosthesis comprises an intramedullary handle b and a plug matched with the blind hole, the upper end of the intramedullary handle b is fixedly connected with the lower end of the plug, the side wall of the connecting block is provided with a notch matched with the patch, the notch is communicated with the lower end of the connecting block and is communicated with the blind hole, the patch is a trapezoid, and the area of the back side of the trapezoid is larger than that of. The invention adopts the form of the connecting block, does not need to be fixed by screws and has long service life; the distance that two sections diaphysis pull open can be reduced to the design of breach and patch, increases fixed strength when can reducing the operation degree of difficulty.
Description
Technical field
The present invention relates to a kind of medical instrument, more particularly to a kind of bushing type osteotomy section backbone prosthese.
Background technology
Two prostheses are usually fixedly connected by osteotomy section backbone prosthese using screw laterally, however the pressure that backbone is subject to should
Power and moment of flexure are larger, are easily destroyed screw thread, so that two prostheses are mutually disengaged, serious damage is generated to patient.
The content of the invention
The present invention is intended to provide a kind of bushing type osteotomy section backbone prosthese, using the form of link block, is fixed without screw,
Service life is long；The design of notch and sticking patch can reduce the distance that two sections of backbone pull open, while can reducing operating difficulty
Increase fixing intensity.
In order to achieve the above objectives, the technical solution adopted by the present invention is as follows：
Bushing type osteotomy section backbone prosthese disclosed by the invention, including the first prosthese, the second prosthese, sticking patch, described first
Prosthese includes handle a, link block in marrow, and the lower end of handle a is fixedly connected with the upper end of link block in the marrow, under the link block
End offers blind hole, and link block cross-sectional width is more than handle a diameters in marrow, and second prosthese includes handle b in marrow, fitted with blind hole
The plug matched somebody with somebody, the upper end of handle b is fixedly connected with the lower end of plug in the marrow, and the side wall of the link block is offered fits with sticking patch
The lower end perforation of the notch matched somebody with somebody, the notch and link block, notch are connected with blind hole, and the sticking patch is prismatoid, described trapezoidal
The area at the body back side is more than positive area, and prismatoid front base width is more than the diameter of plug.
Preferably, the width of sticking patch back side top margin is less than the diameter of plug, and the front of sticking patch is the arc to front projection
Face, the back side of sticking patch are the cambered surface to front projection.
Preferably, the lower edge lengths in the sticking patch front are less than edge lengths under the back side, and the upper edge lengths in sticking patch front are less than the back side
Upper edge lengths, the positive height of sticking patch are less than the height at the back side.
Further, the front and back of the sticking patch is isosceles trapezoid.
Preferably, the plug is truncated cones type, and the cone angle of plug is 1 ° to 5 °.
Further, the height of the sticking patch is less than the height of plug.
Preferably, the height of the sticking patch is 4/5ths of plug height.
Preferably, the length of sticking patch front center line is equal to the diameter of plug, width≤sticking patch of sticking patch back side top margin
The length of front center line.
Further, second prosthese further includes locating platform, the locating platform be fixed in marrow handle b and plug it
Between, the cross section of locating platform is identical with link block cross section.
Further, in the marrow handle a upper end rounding, the lower end rounding of handle b in the marrow.
Preferably, first prosthese, the second prosthese, sticking patch are titanium alloy material.
The invention has the advantages that：
1. since what is be mainly subject at backbone is compression and moment of flexure, so after plug insertion blind hole, fixed without other
Device, installation is more convenient, and stress concentration point is less, and service life is longer.
2. by taking plug height 5cm as an example, the height of sticking patch is 4cm, i.e., cut height is 4cm, then notch center line is from even
The distance of block lower end is connect as 2cm, thus when the upper end of plug is from link block lower end 2cm, you can it is inserted by notch in blind hole, it is real
Border need to only pull open the distance of 3cm, that is, shorten 40% and pull open away from significant effect.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structure diagram of the first prosthese；
Fig. 3 is the structure diagram of the second prosthese；
Fig. 4 is the bottom view of Fig. 2；
Fig. 5 is the three-dimensional view of sticking patch；
Fig. 6 is the front view of Fig. 5；
In figure：It is first prosthese 1, the second prosthese 2, sticking patch 3, handle a11 in marrow, link block 12, handle b21 in marrow, plug 22, fixed
Bit platform 23, blind hole 121, notch 122.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing, to the present invention into
Row is further described.
As shown in figures 1 to 6, bushing type osteotomy section backbone prosthese disclosed by the invention, including the first prosthese 1, the second prosthese 2,
Sticking patch 3, the first prosthese 1 include handle a11, link block 12 in marrow, and company is fixed in the lower end of handle a11 with the upper end of link block 12 in marrow
It connects, the lower end of link block 12 offers blind hole 121, and 12 diameter of link block is more than handle a11 diameters in marrow, and the second prosthese 2 includes marrow
Interior handle b21, the plug 22 being adapted to blind hole 121, the upper end of handle b21 is fixedly connected with the lower end of plug 22 in marrow, link block 12
Side wall offer the notch 122 being adapted to sticking patch 3, notch 122 and the lower end of link block 12 penetrate through, notch 122 and blind hole 121
Connection, sticking patch 3 are prismatoid, and the area at the prismatoid back side is more than positive area, and prismatoid front base width is more than plug
22 diameter, the front of sticking patch 3 are the cambered surface to front projection, and the back side of sticking patch 3 is the cambered surface to front projection, and 3 back side of sticking patch is pushed up
The width on side is less than the diameter of plug 22, and the lower edge lengths in 3 front of sticking patch are less than edge lengths under the back side, the upper edge lengths in 3 front of sticking patch
Less than edge lengths on the back side, 3 positive height of sticking patch is less than the height at the back side, and the front and back of sticking patch 3 is isosceles trapezoid,
Plug 22 is truncated cones type, and the cone angle of plug 22 is 1 ° to 5 °, and the height of sticking patch 3 is less than the height of plug 22, the height of sticking patch 3
It spends for 4/5ths of 22 height of plug, the length of 3 front center line of sticking patch is equal to the diameter of plug 22,3 back side top margin of sticking patch
Width is equal to the length of 3 front center line of sticking patch, and the second prosthese 2 further includes locating platform 23, and locating platform 23 is fixed on handle in marrow
Between b21 and plug 22, the cross section of locating platform 23 is identical with 12 cross section of link block, the upper end rounding of handle a11, marrow in marrow
The lower end rounding of interior handle b21, the first prosthese 1, the second prosthese 2, sticking patch 3 are titanium alloy material.
The installation method of the present invention：
Handle a11 in marrow is inserted into the intramedullary cavity of epimere backbone first, the intramedullary cavity of handle b21 insertions hypomere backbone in marrow, so
Two sections of backbone are pulled open together with the first prosthese 1, the second prosthese 2 to upper and lower both sides afterwards, until plug 22 is inserted into the blind of link block 12
It is unclamped behind hole 121；The entrance at notch 122 of plug 22, which can be shortened, to be pulled open away from sticking patch 3 is put into togerther i.e. together with plug 22
Notch 122 can be filled up complete, increase the intensity of link block 12.
Certain sticking patch 3 can be fixedly connected with plug 22 or locating platform 23, on the basis of filling notch 122 is played,
It can also prevent relative rotation between the first prosthese 1 and the second prosthese 2.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and deformation, but these corresponding changes and deformation can be made according to the present invention by knowing those skilled in the art
The protection domain of appended claims of the invention should all be belonged to.
Claims (10)
1. bushing type osteotomy section backbone prosthese, it is characterised in that：Including the first prosthese（1）, the second prosthese（2）, sticking patch（3）, institute
State the first prosthese（1）Including handle a in marrow（11）, link block（12）, handle a in the marrow（11）Lower end and link block（12）It is upper
End is fixedly connected, the link block（12）Lower end offer blind hole（121）, link block（12）Cross-sectional width is more than handle in marrow
a（11）Diameter, second prosthese（2）Including handle b in marrow（21）With blind hole（121）The plug of adaptation（22）, handle in the marrow
b（21）Upper end and plug（22）Lower end be fixedly connected, the link block（12）Side wall offer and sticking patch（3）Adaptation
Notch（122）, the notch（122）With link block（12）Lower end perforation, notch（122）With blind hole（121）Connection, the benefit
Piece（3）For prismatoid, the prismatoid faces blind hole（121）Surface area be more than away from blind hole surface area, ladder
Body deviates from blind hole（121）Surface base width be more than plug（22）Diameter.
2. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：The sticking patch（3）In face of blind hole
（121）Surface top margin width be less than plug（22）Diameter, sticking patch（3）Deviate from blind hole（121）Surface be to remote
From blind hole（121）The cambered surface of direction protrusion, sticking patch（3）Face blind hole（121）Surface be to away from blind hole（121）Direction is convex
The cambered surface risen.
3. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：The sticking patch（3）Away from blind hole
（121）Surface under edge lengths be less than in face of blind hole（121）Surface under edge lengths, sticking patch（3）Away from blind hole（121）Surface
Upper edge lengths are less than in face of blind hole（121）Surface on edge lengths, sticking patch（3）Away from blind hole（121）The height on surface be less than
In face of blind hole（121）Surface height, sticking patch（3）Deviate from blind hole（121）Surface and in face of blind hole（121）Surface it is equal
For isosceles trapezoid.
4. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：The plug（22）For truncation
Pyramid type, plug（22）Cone angle be 1 ° to 5 °.
5. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：The sticking patch（3）Height it is small
In plug（22）Height.
6. bushing type osteotomy section backbone prosthese according to claim 5, it is characterised in that：The sticking patch（3）Height be
Plug（22）4/5ths of height.
7. bushing type osteotomy section backbone prosthese according to claim 6, it is characterised in that：The sticking patch（3）Away from blind hole
Surface center line length be equal to plug（22）Diameter, sticking patch（3）In face of width≤sticking patch of the surface top margin of blind hole（3）The back of the body
The length of surface center line from blind hole.
8. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：Second prosthese（2）Also wrap
Include locating platform（23）, the locating platform（23）It is fixed on handle b in marrow（21）With plug（22）Connecting portion, locating platform
（23）Cross section and link block（12）Cross section it is identical.
9. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：Handle a in the marrow（11）It is upper
Rounding is held, handle b in the marrow（21）Lower end rounding.
10. bushing type osteotomy section backbone prosthese according to claim 1, it is characterised in that：First prosthese（1）,
Two prostheses（2）, sticking patch（3）It is titanium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220674.6A CN106821551B (en) | 2017-04-06 | 2017-04-06 | Casing type osteotomy segment diaphysis prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220674.6A CN106821551B (en) | 2017-04-06 | 2017-04-06 | Casing type osteotomy segment diaphysis prosthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106821551A CN106821551A (en) | 2017-06-13 |
| CN106821551B true CN106821551B (en) | 2018-05-22 |
Family
ID=59146504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710220674.6A Active CN106821551B (en) | 2017-04-06 | 2017-04-06 | Casing type osteotomy segment diaphysis prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106821551B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108210130B (en) * | 2018-01-08 | 2023-09-08 | 四川大学华西医院 | Talus prosthesis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201104913Y (en) * | 2005-08-15 | 2008-08-27 | 原林 | Homogeneous modified character bone hands surgery bone-fracture internal fixation machine |
| CN201370653Y (en) * | 2009-01-16 | 2009-12-30 | 北京力达康科技有限公司 | Bone-connecting fusion cage |
| CN102846410A (en) * | 2012-08-27 | 2013-01-02 | 上海晟实医疗器械科技有限公司 | Segmental prosthesis for human body long bone diaphysis position |
| CN202908882U (en) * | 2012-11-05 | 2013-05-01 | 胡永成 | Backbone assembly type prosthesis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7198642B2 (en) * | 2003-03-31 | 2007-04-03 | Depuy Products, Inc. | Orthopaedic spacer |
-
2017
- 2017-04-06 CN CN201710220674.6A patent/CN106821551B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201104913Y (en) * | 2005-08-15 | 2008-08-27 | 原林 | Homogeneous modified character bone hands surgery bone-fracture internal fixation machine |
| CN201370653Y (en) * | 2009-01-16 | 2009-12-30 | 北京力达康科技有限公司 | Bone-connecting fusion cage |
| CN102846410A (en) * | 2012-08-27 | 2013-01-02 | 上海晟实医疗器械科技有限公司 | Segmental prosthesis for human body long bone diaphysis position |
| CN202908882U (en) * | 2012-11-05 | 2013-05-01 | 胡永成 | Backbone assembly type prosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106821551A (en) | 2017-06-13 |
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