CN105342667A - Precise eccentric distance knee joint tool module system - Google Patents
Precise eccentric distance knee joint tool module system Download PDFInfo
- Publication number
- CN105342667A CN105342667A CN201510956918.8A CN201510956918A CN105342667A CN 105342667 A CN105342667 A CN 105342667A CN 201510956918 A CN201510956918 A CN 201510956918A CN 105342667 A CN105342667 A CN 105342667A
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- China
- Prior art keywords
- femur
- tibia
- offset distance
- knee joint
- tool model
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1659—Surgical rasps, files, planes, or scrapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1675—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
-
- 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
- A61F2/38—Joints for elbows or knees
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
Abstract
The invention particularly relates to a precise eccentric distance knee joint tool module system. The system comprises a tibia tool module combination and a femur tool module combination, wherein the tibia tool module combination comprises a tibia reamer, a tibia eccentric distance adjuster, an eccentric distance connector, a platform testing mold and a tibial platform processor; the femur tool module combination comprises a femur reamer, a femur eccentric distance adjuster, a femur milling cutter sleeve cover and a four-in-one bone cutting module. Both the tibia tool module combination and the femur tool module combination are accurate eccentric distance operation work modules, and the joint stability as well as the accurate matching of the articular surface and the morphology of medullary space is ensured while bony covering in the maximum contact area of a prosthesis is realized. A locating rod can be kept in the middle of the medullary space to rebuild a force line; the revision prosthesis and bone can be completely contacted, the best bony covering of the prosthesis is realized, the joint stability is ensured, the eccentric distance and the direction between a femoral condyle test mold and an intramedullary extension rod and between a tibial platform test mold and the intramedullary extension rod are ensured, and the accuracy of the mounting position of the prosthesis is finally ensured.
Description
Technical field
The invention belongs to Design for Medical Device technical field, especially relate to a kind of accurate eccentricity knee joint tool model system.
Background technology
Complete knee joint overhaul technology is the operation making joint surgery doctor headache most, meanwhile, is also make one of joint surgery doctor operation producing sense of accomplishment most.In order to that make pain, unstable, failed artificial knee joint, finally become painless and stable knee joint, need to carry out conscientious preoperative evaluation, accurately prosthetic designs and outstanding surgical technic.
Identical with Primary replacement, the target of overhaul technology is that reconstruction one is stable, painless, has the knee joint of good mobility.This target realize the following condition of demand fulfillment: patient must have the mobility of oneself body weight of enough supports; Knee joint can rely on the restricted of the tension force of soft tissue or prosthese self and obtain stability; Knee joint has enough functional activity degree; Finally, the fixing of prosthese must strong, durable.The recovery of knee joint function depends on the realization of these conditions, and accurate eccentric throw assembly type prosthese makes the realization of these conditions in the most complicated case become possibility.
2 very important points are had: 1. rebuild the line of force in complete knee joint overhaul technology; 2. recover bone amount, realize prosthese maximum contact area.Doctor accurately must pay close attention at any time in the process of carrying out operation technique, gives effectively to rebuild and recover.More than remove outside the technical merit of operative doctor, accurate operation tool module is also essential.
The prerequisite of reconstruction of knee stability and joint motions characteristic recovers joint line in normal anatomy position.Knee joint normal anatomy position is: stock neck angle should return to turn up 6 ° (+/-1-2), condyle of femur outward turning 3 °; Tibia hypsokinesis 3-10 °.The recovery of above anatomical position, in complete knee joint overhaul technology, must with reference to marrow inner position bar.
Next recovers bone amount, while realizing prosthese maximum contact area, guarantees stability of joint.Due in revision procedure, usually there is the situation of Cranial defect, so, namely to guarantee that locating rod is the centre being in pulp cavity, to rebuild the line of force; Guarantee that jointing repair prosthesis contacts completely with bone again, realize prosthese maximum contact area, guarantee stability, accurate eccentric throw tool model just must be selected to carry out operation technique to it, determined, the eccentric distance in condyle of femur die trial and tibial plateau die trial and marrow between extension rod and direction.Guarantee that the position that final prosthese is installed is accurate.
Summary of the invention
The problem to be solved in the present invention is to provide a kind ofly guarantees that locating rod is the centre being in pulp cavity, to rebuild the line of force, guarantees that jointing repair prosthesis contacts completely with bone, realizes prosthese maximum contact area, guarantee the accurate eccentricity knee joint tool model system of stability.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of accurate eccentricity knee joint tool model system, comprises the combination of tibia tool model and the combination of femur tool model,
Described tibia tool model combination comprises tibia reamer, tibia offset distance adjustor, offset distance joint, platform die trial and tibial plateau processor, described tibial plateau processor spiral-lock is in platform die trial, connecting hole on described tibial plateau processor can match with offset distance joint, described tibia offset distance adjustor is arranged on offset distance joint, and described tibia reamer can insert in the adjusting hole of tibia offset distance adjustor;
Described femur tool model combination comprises femur milling cutter, femur offset distance adjustor, femur milling cutter oversleeve and four-in-one osteotomy module, described four-in-one osteotomy module is provided with through hole, described femur milling cutter oversleeve and through hole are connected, described femur offset distance adjustor comprises handwheel, pilot sleeve, pin and handle, described handwheel is coated on outside pilot sleeve, described pin is horizontally set at handwheel upper position, described handle is articulated with on pilot sleeve, and described pilot sleeve is provided with pilot hole; Described femur offset distance adjustor matches with femur milling cutter oversleeve away from handle one end; Described femur milling cutter inserts pilot hole, runs through femur offset distance adjustor, femur milling cutter oversleeve and four-in-one osteotomy module.
Two ends, described four-in-one osteotomy module throughbore left and right are provided with groove, are provided with steel ball in two grooves near lead to the hole site, and described steel ball and spring interface touch.
Described four-in-one osteotomy module lateral symmetry is provided with staggered form osteotomy groove and horizontal osteotomy groove.
Described tibia offset distance adjustor and femur offset distance adjustor can 360 ° rotate adjustment arbitrarily, realize the determination of arbitrary orientation.
Described offset distance joint is provided with 0mm, 2.5mm, 5mm, 7.5mm tetra-kinds of specifications, meets the bone caused due to Cranial defect in the first severe deformities of knee joint and knee joint revision procedure and covers not enough and select the demand that different eccentric distances covers with the prosthese bone of satisfied the best.
Beneficial effect of the present invention is: tibia tool model combination of the present invention and the combination of femur tool model are accurate eccentric throw surgical work module, cover simultaneously at the bone realizing prosthese maximum contact area, guarantee the accurate match of stability of joint and articular surface and Pulp chamber.Can guarantee that locating rod is the centre being in pulp cavity, to rebuild the line of force; Can guarantee that again jointing repair prosthesis contacts completely with bone, realize the best bone of prosthese and cover, guarantee stability of joint, determine the eccentric distance in condyle of femur die trial and tibial plateau die trial and marrow between extension rod and direction, guarantee that the position that final prosthese is installed is accurate.In addition, the four-in-one osteotomy module in femur tool model, convenient and swift, ensure that surgical quality and safety to greatest extent, save operating time.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the present invention particularly in conjunction with example, advantage of the present invention and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation of the present invention, and does not form restriction of going up in all senses of the present invention, in the accompanying drawings:
Fig. 1 is tibia tool model combinative structure schematic diagram of the present invention
Fig. 2 is the structural representation of tibia reamer of the present invention
Fig. 3 is the structural representation of tibia offset distance adjustor of the present invention
Fig. 4 is the structural representation of offset distance joint of the present invention
Fig. 5 is the structural representation of platform die trial of the present invention
Fig. 6 is the structural representation of tibial plateau processor of the present invention
Fig. 7 is the structural representation of femur tool model of the present invention combination
Fig. 8 is the structural representation of femur offset distance adjustor of the present invention
Fig. 9 is the internal structure schematic diagram of femur offset distance adjustor of the present invention
Figure 10 is the structural representation of femur milling cutter oversleeve of the present invention
Figure 11 is the profile of femur milling cutter oversleeve of the present invention
Figure 12 is the structural representation of four-in-one osteotomy module of the present invention
Figure 13 is the structural representation of four-in-one osteotomy module spring steel ball of the present invention
In figure:
1, tibia reamer 2, tibia offset distance adjustor 3, offset distance joint
4, platform die trial 5, tibial plateau processor 6, femur milling cutter
7, femur offset distance adjustor 8, femur milling cutter oversleeve 9, four-in-one osteotomy module
71, handwheel 72, pilot sleeve 73, pin
74, handle 75, pilot hole 91, through hole
92, groove 93, steel ball 94, spring
95, staggered form osteotomy groove 96, horizontal osteotomy groove
Detailed description of the invention
As shown in figure 1 to figure 13, a kind of accurate eccentricity knee joint of the present invention tool model system, comprise the combination of tibia tool model and the combination of femur tool model, described tibia tool model combination comprises tibia reamer 1, tibia offset distance adjustor 2, offset distance joint 3, platform die trial 4 and tibial plateau processor 5, described tibial plateau processor 5 spiral-lock is in platform die trial 4, connecting hole on described tibial plateau processor 5 can match with offset distance joint 3, described tibia offset distance adjustor 2 is arranged on offset distance joint 3, described tibia reamer 1 can insert in the adjusting hole of tibia offset distance adjustor 2, described femur tool model combination comprises femur milling cutter 6, femur offset distance adjustor 7, femur milling cutter oversleeve 8 and four-in-one osteotomy module 9, described four-in-one osteotomy module 9 is provided with through hole 91, described femur milling cutter oversleeve 8 is connected with through hole 91, described femur offset distance adjustor 7 comprises handwheel 71, pilot sleeve 72, pin 73 and handle 74, described handwheel 71 is coated on outside pilot sleeve 72, described pin 73 is horizontally set at handwheel 71 upper position, described handle 74 is articulated with on pilot sleeve 72, and described pilot sleeve 72 is provided with pilot hole 75, described femur offset distance adjusts 7 devices and matches with femur milling cutter oversleeve 8 away from handle 74 one end, described femur milling cutter 6 inserts pilot hole 75, runs through femur offset distance adjustor 7, femur milling cutter oversleeve 8 and four-in-one osteotomy module 9, described four-in-one osteotomy module 9 through hole about 91 two ends are provided with groove 92, and be provided with steel ball 93 near through hole 91 position in two grooves 92, described steel ball 93 contacts with spring 94, described four-in-one osteotomy module 9 lateral symmetry is provided with staggered form osteotomy groove 95 and horizontal osteotomy groove 96, described tibia offset distance adjustor 2 and femur offset distance adjustor 7 can 360 ° rotate adjustment arbitrarily, realize the determination of arbitrary orientation, described have offset distance joint 3 and femur milling cutter oversleeve 8 to have four kinds of specifications, is respectively 0mm, 2.5mm, 5mm and 7.5mm.
Tibia tool model combination of the present invention and the combination of femur tool model are accurate eccentric throw surgical work module, cover simultaneously, guarantee the accurate match of stability of joint and articular surface and Pulp chamber at the bone realizing prosthese maximum contact area.Can guarantee that locating rod is the centre being in pulp cavity, to rebuild the line of force; Can guarantee that again jointing repair prosthesis contacts completely with bone, realize the best bone of prosthese and cover, guarantee stability of joint, determine the eccentric distance in condyle of femur die trial and tibial plateau die trial and marrow between extension rod and direction, guarantee that the position that final prosthese is installed is accurate.In addition, the four-in-one osteotomy module in femur tool model, convenient and swift, ensure that surgical quality and safety to greatest extent, save operating time.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (5)
1. an accurate eccentricity knee joint tool model system, it is characterized in that: comprise the combination of tibia tool model and the combination of femur tool model, described tibia tool model combination comprises tibia reamer, tibia offset distance adjustor, offset distance joint, platform die trial and tibial plateau processor, described tibial plateau processor spiral-lock is in platform die trial, connecting hole on described tibial plateau processor can match with offset distance joint, described tibia offset distance adjustor is arranged on offset distance joint, and described tibia reamer can insert in the adjusting hole of tibia offset distance adjustor; Described femur tool model combination comprises femur milling cutter, femur offset distance adjustor, femur milling cutter oversleeve and four-in-one osteotomy module, described four-in-one osteotomy module is provided with through hole, described femur milling cutter oversleeve and through hole are connected, described femur offset distance adjustor comprises handwheel, pilot sleeve, pin and handle, described handwheel is coated on outside pilot sleeve, described pin is horizontally set at handwheel upper position, described handle is articulated with on pilot sleeve, and described pilot sleeve is provided with pilot hole; Described femur offset distance adjustor matches with femur milling cutter oversleeve away from handle one end; Described femur milling cutter inserts pilot hole, runs through femur offset distance adjustor, femur milling cutter oversleeve and four-in-one osteotomy module.
2. accurate eccentricity knee joint tool model system according to claim 1, it is characterized in that: two ends, described four-in-one osteotomy module throughbore left and right are provided with groove, be provided with steel ball near lead to the hole site in two grooves, described steel ball and spring interface touch.
3. accurate eccentricity knee joint tool model system according to claim 1 and 2, is characterized in that: described four-in-one osteotomy module lateral symmetry is provided with staggered form osteotomy groove and horizontal osteotomy groove.
4. accurate eccentricity knee joint tool model system according to claim 1, is characterized in that: described tibia offset distance adjustor and femur offset distance adjustor can 360 ° rotate adjustment arbitrarily, realize the determination of arbitrary orientation.
5. accurate eccentricity knee joint tool model system according to claim 1, it is characterized in that: described offset distance joint is provided with 0mm, 2.5mm, 5mm, 7.5mm tetra-kinds of specifications, meet the bone caused due to Cranial defect in the first severe deformities of knee joint and knee joint revision procedure and cover not enough and select the demand that different eccentric distances covers with the prosthese bone of satisfied the best.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956918.8A CN105342667B (en) | 2015-12-16 | 2015-12-16 | A kind of accurate eccentricity knee joint tool model system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956918.8A CN105342667B (en) | 2015-12-16 | 2015-12-16 | A kind of accurate eccentricity knee joint tool model system |
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| CN105342667A true CN105342667A (en) | 2016-02-24 |
| CN105342667B CN105342667B (en) | 2018-02-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737316A (en) * | 2016-12-13 | 2017-05-31 | 惠阳航空螺旋桨有限责任公司 | A kind of setting tool |
| CN107496015A (en) * | 2017-09-02 | 2017-12-22 | 潍坊钰鼎生物科技有限公司 | Reduction of the fracture mechanism |
| CN112043469A (en) * | 2020-08-27 | 2020-12-08 | 北京市春立正达医疗器械股份有限公司 | Special-shaped tibial forming device |
| CN113456319A (en) * | 2021-07-05 | 2021-10-01 | 天衍医疗器材有限公司 | Test mould for knee joint replacement operation and revision operation thereof |
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| CN203001089U (en) * | 2012-12-26 | 2013-06-19 | 北京爱康宜诚医疗器材股份有限公司 | Multifunctional four-in-one osteotomy device |
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| CN104042369A (en) * | 2013-03-13 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Tibial Trial Instruments For Setting Offset |
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2015
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| US5613970A (en) * | 1995-07-06 | 1997-03-25 | Zimmer, Inc. | Orthopaedic instrumentation assembly having an offset bushing |
| US20060064105A1 (en) * | 2004-09-09 | 2006-03-23 | Howmedica Osteonics Corp. | Navigated drill guided resection block |
| US20080177337A1 (en) * | 2006-12-21 | 2008-07-24 | Howmedica Osteonics Corp. | Adjustable offset bushing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737316A (en) * | 2016-12-13 | 2017-05-31 | 惠阳航空螺旋桨有限责任公司 | A kind of setting tool |
| CN107496015A (en) * | 2017-09-02 | 2017-12-22 | 潍坊钰鼎生物科技有限公司 | Reduction of the fracture mechanism |
| CN107496015B (en) * | 2017-09-02 | 2024-02-09 | 潍坊钰鼎生物科技有限公司 | Fracture reduction mechanism |
| CN112043469A (en) * | 2020-08-27 | 2020-12-08 | 北京市春立正达医疗器械股份有限公司 | Special-shaped tibial forming device |
| CN113456319A (en) * | 2021-07-05 | 2021-10-01 | 天衍医疗器材有限公司 | Test mould for knee joint replacement operation and revision operation thereof |
| CN113456319B (en) * | 2021-07-05 | 2024-01-26 | 天衍医疗器材有限公司 | Test mold for knee joint replacement operation and revision operation thereof |
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| Publication number | Publication date |
|---|---|
| CN105342667B (en) | 2018-02-27 |
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Address after: 300110 No. 27, Ziyang Road, Nankai District, Tianjin Patentee after: Jiasite medical equipment (Tianjin) Co.,Ltd. Address before: No.27 Ziyang Road Nankai District Tianjin 300190 Patentee before: Jiasite Huajian Medical Equipment(Tianjin)Co.,Ltd. |