CN203564384U - Cancer type artificial ankle joint prosthesis - Google Patents
Cancer type artificial ankle joint prosthesis Download PDFInfo
- Publication number
- CN203564384U CN203564384U CN201320648144.9U CN201320648144U CN203564384U CN 203564384 U CN203564384 U CN 203564384U CN 201320648144 U CN201320648144 U CN 201320648144U CN 203564384 U CN203564384 U CN 203564384U
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- China
- Prior art keywords
- ankle joint
- overhead
- polyethylene liner
- type artificial
- artificial ankle
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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.)
- Expired - Fee Related
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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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
-
- 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)
- 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)
- Prostheses (AREA)
Abstract
The utility model relates to a cancer type artificial ankle joint prosthesis which is formed by a astragalus lateral member, a polyethylene liner and a top member, wherein three ridges inclining towards the rear below side are arranged on the bottom surface of the astragalus lateral member in a protruding mode, and an arched sliding surface is formed at the top of the astragalus lateral member. A T-shaped protruding portion is arranged at the top of the polyethylene liner transversely, and the bottom of the polyethylene liner is recessed inwards to form an articular fossa containing the sliding surface. The top member is provided with an upper connection surface for being connected with a tibia prosthesis, and a T-shaped groove containing the protruding portion is formed in the bottom of the top member transversely. Five through holes for repairing internal and external ligaments of an ankle joint are formed in the top member in a lateral through mode, and the inner side of the top member extends downwards to form a protruding ridge which abuts against the inner lateral surface of the polyethylene liner. The cancer type artificial ankle joint prosthesis is reasonable in structural design, convenient to manufacture, capable of facilitating operations, increasing stability of the artificial ankle joint and quickening recovery of load-bearing and movement functions of the ankle joint, and applicable to limb salvage treatment on cancers at far end of the tibia.
Description
Technical field
The utility model discloses a kind ofly for rebuilding the ankle prosthesis of large segmental bone defect after distal tibial tumor resection, be specifically related to a kind of combination type tumorous type artificial ankle joint prosthese being formed by ankle joint overhead, polyethylene liner and astragalus side member.
Background technology
Generally, below-knee amputation is the standard procedures scheme of hypomere malignant tumor in tibia, but along with protecting the development of limb technology and material science, autologous bone, allograph bone, prosthese are used to rebuild large segmental bone defect after (or autologous bone, allograph bone and prosthese hybrid reconstruction) distal tibial tumor resection, and Most scholars is thought comparatively ideal of late result that prosthese rebuilds large segmental bone defect after distal tibial tumor resection.Traditional tumorous type artificial ankle joint prosthese mostly is hinge type, although protected to a certain extent the stability of ankle joint, articular surface can only slide in sagittal plain direction, and the mobility of ankle joint reduces.How to break through conventional means, how to adopt not only ideal but also reliably advanced way be used as current clinical operation and become a urgent direction.
Summary of the invention
The object of this utility model embodiment is the shortcoming for prior art, a kind of tumorous type artificial ankle joint prosthese is proposed, on the basis of existing artificial ankle joint prosthese, remove hinge type structure, increased artificial internal malleolus structure, this borrowed structure is reasonable in design, be convenient to preparation and operation technique, strengthen the stability of artificial ankle joint, recover heavy burden and the movable function of ankle joint, be applicable to being applied to guarantor's limb treatment of distal tibial malignant tumor.Can rebuild large segmental bone defect after distal tibial tumor resection, and the stability of ankle joint, recover heavy burden and the movable function of ankle joint.
In order to reach foregoing invention object, a kind of tumorous type artificial ankle joint prosthese the utility model proposes, is achieved through the following technical solutions:
A tumorous type artificial ankle joint prosthese, comprising:
Astragalus side member, bottom surface is protruding with three to the ridges of back lower place inclination, and the sliding surface of arch is formed on its top, and inwardly shrink also respectively and bottom connection the both sides of the inside and outside ankle of correspondence of this sliding surface, and its front and rear portions respectively arc extends to described bottom surface;
Polyethylene liner, top cross arranges the protuberance of T shape, and the glenoid fossa of described sliding surface is held in its inside recessed formation in bottom; The lower edge of the both sides of the corresponding inside and outside ankle of this polyethylene liner respectively has the flange to downward-extension, and these two flanges coordinate with the constriction of described sliding surface both sides;
Overhead, has the upper joint face for being connected with tibial prosthesis, and its bottom surface is horizontally arranged with T-slot, and the outside of this overhead is formed with the opening of described T-slot, and described protuberance is placed in described T-slot and interference fit; Pre-and post perforatively on described overhead be provided with 5 for repairing the through hole of lateral ligament in ankle joint, wherein three through holes are positioned at the nearly Outboard Sections of described ankle joint overhead, and be arranged in order from the bottom to top, another two through holes are positioned at the nearly inner side part of described overhead, and are arranged in order from the bottom to top; In addition, the inner side of described overhead is extended with an outstanding ridge downwards, and the ridge of this overhead and the laminating of the medial surface of described polyethylene liner.
Preferably, the medial surface of described polyethylene liner is arch, the medial surface indent of the ridge of described overhead, and suitable with the medial surface of described polyethylene liner.
Further preferred, the ridge of described overhead plays thickness by lower end and increases gradually.
Further preferred, on the upper joint face of described overhead, be provided with spill bayonet socket.
Further preferred, described overhead has columned top, and described spill card port shape is formed on the end face on described columned top.
Compared with prior art, this utility model, owing to having adopted technique scheme, has the following advantages:
1. this combination type tumorous type artificial ankle joint prosthese is cylindrical shape structure, mainly ankle joint overhead, polyethylene liner and astragalus side member, consists of, and simple in structure, cost is low.
2. this combination type tumorous type artificial ankle joint prosthese, can rebuild the data of CT scan according to operation in patients front three dimension, selects shank assembly, ankle joint overhead, polyethylene liner and the astragalus side member of corresponding size, reaches individuation customization, and simple to operate.
3. there is an outstanding ridge (internal malleolus) this combination type tumorous type artificial ankle joint prosthese inner side, and it is the key structure that maintains stability inside ankle joint, effectively prevents that ankle joint is to distraction and strephenopodia, improves the late result after replacement.
4. there are respectively 3 and 2 circular holes in the inside and outside both sides of this combination type tumorous type artificial ankle joint prosthese, for repairing the stump of lateral ligament in ankle joint, strengthen the stability of artificial ankle joint.
Accompanying drawing explanation
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of this utility model will become apparent and easily understand.
Fig. 1 is the overall structure schematic diagram I of this utility model embodiment artificial ankle joint prosthese;
Fig. 2 is the overall structure schematic diagram II of this utility model embodiment artificial ankle joint prosthese;
Fig. 3 is the structural representation of this utility model embodiment thigh ankle joint overhead;
Fig. 4 is the structural representation of this utility model embodiment polyethylene liner;
Fig. 5 is this utility model embodiment astragalus side member schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, this utility model is described in further detail, so that technical staff's of the same trade understanding:
As Figure 1-5, label represents respectively:
Astragalus side member 1, ridge 11, ridge 12, ridge 13, sliding surface 14, contraction flow region 145, bottom surface 15, polyethylene liner 2, protuberance 21, glenoid fossa 22, flange 23, overhead 3, top 31, spill bayonet socket 311, bottom 32, T-slot 321, through hole 33, ridge 34.
Shown in Fig. 1-5, in the present embodiment, combination type tumorous type artificial ankle joint prosthese is from top to bottom comprised of ankle joint overhead, polyethylene liner and astragalus side member successively, wherein:
Astragalus side member
The bottom surface 15 of astragalus side member 1 is protruding with three ridges that are obliquely installed to the back lower place, is followed successively by ridge 11, ridge 12, ridge 13, and these three ridges are triangularly arranged, and for Cement, astragalus side prosthesis is fixed on to astragalus top.The object that three ridges that are obliquely installed to the back lower place are set is to make ankle prosthesis to have more large-area contact with astragalus body, increases the stability of prosthese.The sliding surface 14 of arch is formed on the top of astragalus side member 1, and the both sides of the inside and outside ankle of correspondence of this sliding surface 14 are inwardly shunk and formed contraction flow region 145 respectively, and contraction flow region 145 joins with bottom 15; The front and rear portions of sliding surface 14 respectively arc extends to bottom surface 15.
Polyethylene liner
Overhead
Overhead 3 has a columned top 31 and is positioned at the bottom 32 of these 31 belows, top, here it should be noted that, the 31He bottom, top 32 of overhead 3 is structure as a whole, it can rebuild the diameter of CT scan design 31He bottom, prosthese top, ankle joint top 32 according to operation in patients front three dimension, it is highly 60mm.The top on cylindric top 31 is formed with the upper joint face for being connected with tibial prosthesis, specifically, the top on top 31 is provided with spill bayonet socket 311, and on corresponding tibial prosthesis, the convex bayonet socket of setting and spill bayonet socket 311 form fit, completes the assembling of the two thus.The bottom surface of the bottom 32 of overhead 3 is horizontally arranged with T-slot 321, and the outside of this overhead 3 is formed with the opening of described T-slot 321.Opening enters thus, and protuberance 21 can be inserted in T-slot 321 and interference fit, completes the assembling between overhead 3 and polyethylene liner 2.T-slot 321 has the end wall of block protuberance 21 in the inner side of overhead 3.The reason of T-slot 321 horizontally sets is that ankle joint is the motion of fore-and-aft direction, only has horizontally set just can not stop the motion of fore-and-aft direction.
Also pre-and post perforatively on overhead 3 be provided with 5 through holes 33, for repairing lateral ligament in ankle joint.Wherein, three through holes 33 are positioned at the nearly Outboard Sections of described ankle joint overhead 3, and are arranged in order from the bottom to top, and another two through holes 33 are positioned at the nearly inner side part of described ankle joint overhead 3, and are arranged in order from the bottom to top.
In addition, the inner side of overhead 3 is extended with an outstanding ridge 34 downwards, and ridge 34 plays thickness by lower end and increases gradually.This ridge 34 arranges with the medial surface laminating of described polyethylene liner 2, and the medial surface of polyethylene liner 2 is arch, and the medial surface indent of ridge 34 is suitable with the medial surface of polyethylene liner 2, and the polyethylene liner 2 of conflicting.The object that ridge 34 is set is, prevent in actual use because the bonding strength between protuberance 21 and T-slot 321 is not enough, and the ankle joint causing is to distraction and strephenopodia, play the inwardly effect of upset of block overhead 3, at it, it is the key structure that maintains stability inside ankle joint, effectively prevent that ankle joint is to distraction and strephenopodia, improve the late result after replacement.
Compared with prior art, this utility model, owing to having adopted technique scheme, has the following advantages:
1. this combination type tumorous type artificial ankle joint prosthese is cylindrical shape structure, mainly ankle joint overhead, polyethylene liner and astragalus side member, consists of, and simple in structure, cost is low.
2. this combination type tumorous type artificial ankle joint prosthese, can rebuild the data of CT scan according to operation in patients front three dimension, selects shank assembly, ankle joint overhead, polyethylene liner and the astragalus side member of corresponding size, reaches individuation customization, and simple to operate.
3. there is an outstanding ridge (internal malleolus) this combination type tumorous type artificial ankle joint prosthese inner side, and it is the key structure that maintains stability inside ankle joint, effectively prevents that ankle joint is to distraction and strephenopodia, improves the late result after replacement.
4. there are respectively 3 and 2 circular holes in the inside and outside both sides of this combination type tumorous type artificial ankle joint prosthese, for repairing the stump of lateral ligament in ankle joint, strengthen the stability of artificial ankle joint.
It should be noted that; above content is in conjunction with concrete embodiment further detailed description of the utility model; can not assert that the specific embodiment of the present utility model only limits to this; under the guidance of above-described embodiment; those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvement or distortion drop in protection domain of the present utility model.
Claims (5)
1. a tumorous type artificial ankle joint prosthese, is characterized in that comprising:
Astragalus side member, bottom surface is protruding with three to the ridges of back lower place inclination, and the sliding surface of arch is formed on its top, and inwardly shrink also respectively and bottom connection the both sides of the inside and outside ankle of correspondence of this sliding surface, and its front and rear portions respectively arc extends to described bottom surface;
Polyethylene liner, top cross arranges the protuberance of T shape, and the glenoid fossa of described sliding surface is held in its inside recessed formation in bottom; The lower edge of the both sides of the corresponding inside and outside ankle of this polyethylene liner respectively has the flange to downward-extension, and these two flanges coordinate with the constriction of described sliding surface both sides;
Overhead, has the upper joint face for being connected with tibial prosthesis, and its bottom surface is horizontally arranged with T-slot, and the outside of this overhead is formed with the opening of described T-slot, and described protuberance is placed in described T-slot and interference fit; Pre-and post perforatively on described overhead be provided with 5 for repairing the through hole of lateral ligament in ankle joint, wherein three through holes are positioned at the nearly Outboard Sections of described ankle joint overhead, and be arranged in order from the bottom to top, another two through holes are positioned at the nearly inner side part of described overhead, and are arranged in order from the bottom to top; In addition, the inner side of described overhead is extended with an outstanding ridge downwards, and the ridge of this overhead and the laminating of the medial surface of described polyethylene liner.
2. a kind of tumorous type artificial ankle joint prosthese according to claim 1, is characterized in that: the medial surface of described polyethylene liner is arch, the medial surface indent of the ridge of described overhead, and suitable with the medial surface of described polyethylene liner.
3. a kind of tumorous type artificial ankle joint prosthese according to claim 2, is characterized in that: the ridge of described overhead plays thickness by lower end and increases gradually.
4. a kind of tumorous type artificial ankle joint prosthese according to claim 3, is characterized in that: on the upper joint face of described overhead, be provided with spill bayonet socket.
5. a kind of tumorous type artificial ankle joint prosthese according to claim 4, is characterized in that: described overhead has columned top, and described spill card port shape is formed on the end face on described columned top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648144.9U CN203564384U (en) | 2013-10-21 | 2013-10-21 | Cancer type artificial ankle joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648144.9U CN203564384U (en) | 2013-10-21 | 2013-10-21 | Cancer type artificial ankle joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564384U true CN203564384U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320648144.9U Expired - Fee Related CN203564384U (en) | 2013-10-21 | 2013-10-21 | Cancer type artificial ankle joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598936A (en) * | 2013-10-21 | 2014-02-26 | 上海市第十人民医院 | Combined tumor-type ankle joint prosthesis |
| CN113425464A (en) * | 2021-05-11 | 2021-09-24 | 上海市第一人民医院 | Joint prosthesis |
-
2013
- 2013-10-21 CN CN201320648144.9U patent/CN203564384U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598936A (en) * | 2013-10-21 | 2014-02-26 | 上海市第十人民医院 | Combined tumor-type ankle joint prosthesis |
| CN113425464A (en) * | 2021-05-11 | 2021-09-24 | 上海市第一人民医院 | Joint prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20161021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |