CN2242088Y - 3-D adjustable artificial joint of lower jaw - Google Patents
3-D adjustable artificial joint of lower jaw Download PDFInfo
- Publication number
- CN2242088Y CN2242088Y CN 95223445 CN95223445U CN2242088Y CN 2242088 Y CN2242088 Y CN 2242088Y CN 95223445 CN95223445 CN 95223445 CN 95223445 U CN95223445 U CN 95223445U CN 2242088 Y CN2242088 Y CN 2242088Y
- Authority
- CN
- China
- Prior art keywords
- condyle
- screw
- axillare
- mill
- joint
- 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.)
- Expired - Fee Related
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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
- A61F2/30988—Other joints not covered by any of the groups A61F2/32 - A61F2/4425
- A61F2/3099—Other joints not covered by any of the groups A61F2/32 - A61F2/4425 for temporo-mandibular [TM, TMJ] joints
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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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
Disclosed is a 3-D adjustable artificial joint of lower jaw, which is composed of a condyle false body, a connecting body and a carrying plate. The 3-D adjustable artificial joint of lower jaw is characterized in that the condyle false body reelingly adjusts a tilting angle via a millstone-shaped axis plate plane arrayed in decussation of two shaft centers of the connecting body, adjusts the height by vertically pulling the carrying plate up and down to a segmented mate-shaped chute via the connecting body, and a 3-D adjustment is jointly composed. A screw of combined tension whose screw head is hollow is tightly fixed by the interlocking teeth of the millstone-shaped axis plate plane, and the screw head is embedded with an expansion bolt for retention. The segmented mate-shaped chute is tightly fixed by two screws, and a carrying plate for linking and setting is fixed on a jaw bone through bone screws. The function of false body replacement of a temporomandibular joint of a human body is realized, and a blankness in stomatology is filled.
Description
This utility model relates to medical apparatus and instruments, refers in particular to a kind of artificial prosthesis of alternative human body remporomandibular joint---the artificial remporomandibular joint of three-dimensional adjustable.
At Oral and Maxillofacial Surgery, at treatment of diseases such as tumor, wound, ankylosises, usually carry out arthrectomy, cause structural deterioration, afunction, therefore need artificial prosthesis to rebuild the joint.Yet but remporomandibular joint displacement working place is limited, operating difficulty is big, individual configurations difference is destructive different with operation and sick damage structure in addition, be difficult to adopt single specification, artificial joint that can not mode reaches the accurately in place of joint angles and height, but function adaptability is poor, adopt the artificial joint of many specifications not only expensive big, and need accurately measure (being impossible sometimes) before the operation, make to apply to be subjected to greatly placing restrictions on, seek a kind of new artificial remporomandibular joint becomes medically tackling key problem class for this reason.
The purpose of this utility model is at the problems referred to above, provides a kind of structure light and handy, easy to operate, and the fastening very firm artificial remporomandibular joint of three-dimensional adjustable function that has of parts is to satisfy the stomatologic needs of medical science.
The purpose of this utility model is achieved in that the artificial remporomandibular joint of three-dimensional adjustable is by the prominent prosthese of condyle, connector, support plate is formed, it is characterized in that: the inclination angle is regulated in the mill shape axillare plane rotation that the prominent prosthese of condyle is arranged by two axle center of connector decussation, vertically spur support plate up and down by connector again and regulate height, form three-dimensional regulation jointly to joint coupling shape chute; The involutory lag screw of mill axillare interlocking tooth is fastening, screw ailhead hollow, and embedded expansion bolt maintenance, the two screws of joint coupling chute are fastening, even put support plate and pass through the bone screw maintenance on jawbone, realize the replacement prosthesis effect to the human body remporomandibular joint.
Advantage of the present utility model is: the blank of having filled up human body remporomandibular joint replacement prosthesis, make this prosthese have three-dimensional adjustable effect, angle and height is accurately in place when adapting to joint replacement with this, total has reliable stability, accuracy, structure is light and handy, and is easy to operate, and function replacement usefulness is good.
Concrete structure of the present utility model further specifies by following examples and accompanying drawing thereof:
Fig. 1: for structure master of the present utility model looks cut-away view.
Fig. 2: be this utility model side-looking structure cut-away view.
Referring to Fig. 1,2, the artificial remporomandibular joint of three-dimensional adjustable is by the prominent prosthese 1 of condyle, connector 2,3, carrier 4 is formed, wherein 1 fen condyle head 11 of the prominent prosthese of condyle, condyle neck 12, mill axillare 13 3 parts, condyle head 11 is a functional parts, the oval bionical shape of spherical in shape or class (branch left and right side), big small size can be established plurality of specifications, and interchangeable, condyle head 11 is connected with condyle neck 12, can adopt inlay to insert, welding or one-body molded.
Connector divides two parts up and down, and two mill axillares 21,22 are up and down established at last connector 2 two ends, and the axle center is the decussation arrangement each other, and upper millstone axillare 21 is coaxial involutory with the mill axillare 13 of the prominent prosthese 1 of condyle, camber angle in the scalable that the rotates relative to one another condyle head 11; Following connector 3 upper ends are that mill axillare 31 is coaxial involutory with last connector 2 lower millstone axles 22, inclination angle, the scalable that rotates relative to one another condyle head 11 front and back; Following connector 3 lower ends are single face joint coupling shape chute 32, and chute 32 tops are the arch sealing, and the below is open, joint coupling diameter holds the hold-down screw ailhead 7 that crouches, the two diameter equates that slightly joint coupling pitch is set according to the size of the amplitude of accommodation, and chute 32 width and the degree of depth and support plate 4 adapt.
4 minutes two districts of support plate upward are double track pull lever 41, are fixing head 42 down, and fixing head 42 is provided with plate hole 421, is arcuate structure between plate hole, allows to bend coarse adjustment, and hole shape is constant.Double track pull lever 41 can slide up and down in chute 32, twitches the vertical height of regulating condyle head 11.The three-dimensional axial plane is regulated like this, has realized the three-dimensional adjustability of the prominent prosthese 1 of condyle, accurate property in place.
The involutory surface of above-mentioned four mill axillares 13,21,22,31 is equipped with groove 9, the involutory linking of interlocking tooth each other, maintenance effect with anti-skidding changing of the relative positions, the every pair of mill axillare 13 and 21, after 22 and 31 interlocking tooths are involutory, fastening with screw 5, screw 5 side grinding dish axillares 13,22 nail holes do not have screw thread, nail tail side grinding dish axillare has screw thread in 21, the 31 nail holes, is the pulling force tightening state after screw 5 screws in like this, has powerful fixation, screw 5 tail end hollows in addition, be provided with female thread, screw in an expansion bolt 6, more increased fixed fastness.In the joint coupling chute 32 of support plate double track pull lever 41 infra connectors 3 for sleeping in, fastening by two screw 7 pressings, joint coupling shape structure has the effect that prevents that screw 7 from sliding up and down, fixing head 42 usefulness of support plate 4 connect solid screw 8 (at least four) and are fixed on the jawbone, thereby have finished the dock effect of articular prosthesis with bone.
Claims (6)
1, the artificial remporomandibular joint of a kind of three-dimensional adjustable is by the prominent prosthese of condyle, connector, support plate is formed, it is characterized in that: the inclination angle is regulated in the mill shape axillare plane rotation that the prominent prosthese of condyle is arranged by two axle center of connector decussation, vertically spur support plate up and down by connector again and regulate height, form three-dimensional regulation jointly to joint coupling shape chute; The involutory lag screw of mill axillare interlocking tooth is fastening, screw ailhead hollow, and embedded expansion bolt maintenance, the two screws of joint coupling chute are fastening, even put support plate and pass through the bone screw maintenance on jawbone.
2, the artificial remporomandibular joint of three-dimensional adjustable according to claim 1, it is characterized in that: the condyle prosthese (1) of dashing forward divides condyle head (11), condyle neck (12), mill axillare (13) three parts, spherical in shape or the oval bionical shape of class (branch left and right side) of condyle head (11), condyle head (11) is connected with condyle neck (12), can adopt inlay to insert, welding or one-body molded.
3, the artificial remporomandibular joint of three-dimensional adjustable according to claim 1, it is characterized in that: connector divides two parts up and down, two mill axillares (21), (22) are up and down established in last connector (2) two ends, the axle center is the decussation arrangement each other, upper millstone axillare (21) is coaxial involutory with the mill axillare (13) of the prominent prosthese (1) of condyle, the interior camber angle of the scalable that rotates relative to one another condyle head (11); Following connector (3) upper end is that mill axillare (31) is coaxial involutory with last connector (2) lower millstone axle (22), inclination angle before and after the scalable that the rotates relative to one another condyle head (11); Following connector (3) lower end is a single face joint coupling shape chute (32).
4, the artificial remporomandibular joint of three-dimensional adjustable according to claim 1, it is characterized in that: chute (32) top is the arch sealing, the below is open, joint coupling diameter holds the hold-down screw ailhead (7) that crouches, the two diameter slightly equates, joint coupling pitch is set according to the size of the amplitude of accommodation, and chute (32) width and the degree of depth and support plate (4) adapt.
5, the artificial remporomandibular joint of three-dimensional adjustable according to claim 1 is characterized in that: support plate (4) divides two districts, upward is double track pull lever (41), is fixing head (42) down, and fixing head (42) is provided with plate hole (421), is arcuate structure between plate hole.
6, the artificial remporomandibular joint of three-dimensional adjustable according to claim 1, it is characterized in that: the involutory surface of above-mentioned four mill axillares (13), (21), (22), (31) is equipped with groove (9), the involutory linking of interlocking tooth each other, every pair of mill axillare (13) and (21), (22) with (31) interlocking tooth involutory after, fastening with screw (5), screw (5) side grinding dish axillare (13), (22) nail hole do not have screw thread, nail tail side grinding dish axillare (21), (31) nail have screw thread in the hole, screw (5) tail end hollow in addition, be provided with female thread, screw in an expansion bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95223445 CN2242088Y (en) | 1995-10-12 | 1995-10-12 | 3-D adjustable artificial joint of lower jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95223445 CN2242088Y (en) | 1995-10-12 | 1995-10-12 | 3-D adjustable artificial joint of lower jaw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242088Y true CN2242088Y (en) | 1996-12-11 |
Family
ID=33870498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95223445 Expired - Fee Related CN2242088Y (en) | 1995-10-12 | 1995-10-12 | 3-D adjustable artificial joint of lower jaw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242088Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715968A (en) * | 2012-07-06 | 2012-10-10 | 常州市康辉医疗器械有限公司 | Temporomandibular joint fovea prosthesis |
| CN104546225A (en) * | 2015-01-09 | 2015-04-29 | 上海交通大学医学院附属第九人民医院 | Total temporomandibular joint prosthesis |
| CN104887352A (en) * | 2015-05-12 | 2015-09-09 | 上海交通大学医学院附属第九人民医院 | Artificial temporal-mandibular joint replacement prosthesis |
| CN104939951A (en) * | 2014-03-26 | 2015-09-30 | 上海交通大学医学院附属第九人民医院 | Artificial temporal-mandibular joint replacement bone trimming guide plate assembly |
-
1995
- 1995-10-12 CN CN 95223445 patent/CN2242088Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102715968A (en) * | 2012-07-06 | 2012-10-10 | 常州市康辉医疗器械有限公司 | Temporomandibular joint fovea prosthesis |
| CN104939951A (en) * | 2014-03-26 | 2015-09-30 | 上海交通大学医学院附属第九人民医院 | Artificial temporal-mandibular joint replacement bone trimming guide plate assembly |
| CN104939951B (en) * | 2014-03-26 | 2017-06-13 | 上海交通大学医学院附属第九人民医院 | A kind of artificial remporomandibular joint displacement bone finishing guide plate component |
| CN104546225A (en) * | 2015-01-09 | 2015-04-29 | 上海交通大学医学院附属第九人民医院 | Total temporomandibular joint prosthesis |
| CN104887352A (en) * | 2015-05-12 | 2015-09-09 | 上海交通大学医学院附属第九人民医院 | Artificial temporal-mandibular joint replacement prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |