CN105342667B - A kind of accurate eccentricity knee joint tool model system - Google Patents
A kind of accurate eccentricity knee joint tool model system Download PDFInfo
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- CN105342667B CN105342667B CN201510956918.8A CN201510956918A CN105342667B CN 105342667 B CN105342667 B CN 105342667B CN 201510956918 A CN201510956918 A CN 201510956918A CN 105342667 B CN105342667 B CN 105342667B
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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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Transplantation (AREA)
- Dentistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
Present invention relates particularly to a kind of accurate eccentricity knee joint tool model system, including the combination of shin bone tool model and the combination of femur tool model, the combination of shin bone tool model includes shin bone reamer, shin bone offset distance adjuster, offset distance joint, platform die trial and tibial plateau processor；The combination of femur tool model includes femur milling cutter, femur offset distance adjuster, femur milling cutter oversleeve and four-in-one osteotomy module, the combination of shin bone tool model and the combination of femur tool model of the present invention are accurate eccentric throw surgical work module, covered simultaneously in the bone for realizing prosthese Maximum Contact area, it is ensured that the accurate match of stability of joint and articular surface and Pulp chamber.Can ensure that locating rod is the centre in pulp cavity, to rebuild the line of force；And can ensures that jointing repair prosthesis completely attaches to bone, realizes the optimal bone covering of prosthese, it is ensured that stability of joint, determine the eccentric distance between extension rod and direction in condyle of femur die trial and tibial plateau die trial and marrow, it is ensured that the position of final prosthese installation is accurate.
Description
Technical field
The invention belongs to Design for Medical Device technical field, more particularly, to a kind of accurate eccentricity knee joint tool model
System.
Background technology
Complete knee joint overhaul technology is the operation for most making joint surgery doctor's headache, meanwhile, and most make joint surgery doctor
Produce one of operation of sense of accomplishment.In order that pain, it is unstable, failure artificial knee joint, ultimately become painless and steady
Fixed knee joint is, it is necessary to carry out conscientious preoperative evaluation, accurate prosthetic designs and outstanding surgical technic.
Identical with Primary replacement, the target of overhaul technology is to rebuild a stabilization, painless, the knee pass with good mobility
Section.The realization of this target needs to meet following condition：Patient must have enough mobilities for supporting oneself body weight；Knee closes
Section can rely on the tension force of soft tissue or the restricted of prosthese itself and obtain stability；Knee joint has enough functional activities
Degree；Finally, the fixation of prosthese must strong, durable.Realization of the recovery of knee joint function dependent on these conditions, it is accurate inclined
The heart makes these conditions be implemented as possibility in most complicated case away from the type prosthese of assembling.
There are critically important 2 points in complete knee joint overhaul technology：1. rebuild the line of force；2. recovering bone amount, prosthese Maximum Contact is realized
Area.Doctor accurate at any time during being operated must pay close attention to, and gives and effectively rebuilds and recover.Hand is removed above
Outside the technical merit of art doctor, accurate operation tool module is also essential.
The premise of reconstruction of knee stability and joint motions characteristic is to recover joint line in normal anatomy position.Knee joint
Normal anatomy position is：Stock neck angle should return to turn up 6 ° (+/- 1-2), 3 ° of condyle of femur outward turning；3-10 ° of shin bone hypsokinesis.More than
The recovery of anatomical position, in complete knee joint overhaul technology, it is necessary to reference to locating rod in marrow.
Next to that recover bone amount, while realizing prosthese Maximum Contact area, it is ensured that stability of joint.Due to overhauling hand
In art, generally there is the situation of Cranial defect, so, i.e., to ensure locating rod is the centre in pulp cavity, to rebuild the line of force；It is true again
Protect jointing repair prosthesis to completely attach to bone, realize prosthese Maximum Contact area, it is ensured that stability, must just select accurate eccentric throw
Tool model is operated to it, is determined, in condyle of femur die trial and tibial plateau die trial and marrow between extension rod
Eccentric distance and direction.Ensure that the position of final prosthese installation is accurate.
The content of the invention
The problem to be solved in the present invention be to provide it is a kind of ensure that locating rod is the centre in pulp cavity, to rebuild the line of force, really
Protect jointing repair prosthesis to completely attach to bone, realize prosthese Maximum Contact area, it is ensured that the accurate eccentricity knee joint instrument of stability
Modular system.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of accurate eccentricity knee joint tool mould
Block system, including the combination of shin bone tool model and the combination of femur tool model,
The shin bone tool model combination includes shin bone reamer, shin bone offset distance adjuster, offset distance joint, platform die trial and shin
Bone platform processor, the tibial plateau processor spiral-lock is in platform die trial, the connecting hole on the tibial plateau processor
It can be engaged with offset distance joint, the shin bone offset distance adjuster is arranged on offset distance joint, and the shin bone reamer can be inserted into shin bone
In the adjusting hole of offset distance adjuster；
The femur tool model combination includes femur milling cutter, femur offset distance adjuster, femur milling cutter oversleeve and four-in-one
Osteotomy module, through hole is provided with the four-in-one osteotomy module, the femur milling cutter oversleeve is connected with through hole, the stock
Bone offset distance adjuster includes handwheel, pilot sleeve, pin and handle, and the handwheel is coated on the outside of pilot sleeve, the pin
Handwheel upper position is horizontally set at, the handle is articulated with pilot sleeve, and pilot hole is provided with the pilot sleeve；Institute
Femur offset distance adjuster is stated to be engaged with femur milling cutter oversleeve away from handle one end；The femur milling cutter inserts pilot hole, runs through
Femur offset distance adjuster, femur milling cutter oversleeve and four-in-one osteotomy module.
The four-in-one osteotomy module throughbore left and right ends are provided with groove, are all provided with two grooves close to lead to the hole site
Steel ball is equipped with, the steel ball touches with spring interface.
The four-in-one osteotomy module both sides are symmetrically arranged with staggered form osteotomy groove and horizontal osteotomy groove.
Shin bone offset distance adjuster and femur the offset distance adjuster can 360 ° of any rotation regulations, realize arbitrary orientation really
It is fixed.
The offset distance joint is provided with tetra- kinds of specifications of 0mm, 2.5mm, 5mm, 7.5mm, meets the first severe deformities of knee joint
And different eccentric distances is selected to meet most preferably due to bone covering deficiency caused by Cranial defect in knee joint revision procedure
Prosthese bone covering demand.
Beneficial effects of the present invention are：The combination of shin bone tool model and the combination of femur tool model of the present invention is accurate
Eccentric throw surgical work module, realizing prosthese Maximum Contact area bone cover simultaneously, it is ensured that stability of joint and pass
The accurate match of nodal section and Pulp chamber.Can ensure that locating rod is the centre in pulp cavity, to rebuild the line of force；And can ensures to turn over
Repair prosthese to completely attach to bone, realize the optimal bone covering of prosthese, it is ensured that stability of joint, determine that condyle of femur die trial and shin bone are put down
Eccentric distance between extension rod and direction in platform die trial and marrow, it is ensured that the position of final prosthese installation is accurate.In addition, femur work
Have the four-in-one osteotomy module in module, it is convenient and swift, surgical quality and safety are ensure that to greatest extent, when having saved operation
Between.
Brief description of the drawings
The present invention is specifically described below with reference to accompanying drawing and with reference to example, advantages of the present invention and implementation will
More obvious, wherein content is only used for explanation of the present invention shown in accompanying drawing, without forming to the present invention in all senses
On limitation, in the accompanying drawings：
Fig. 1 is shin bone tool model combining structure schematic diagram of the present invention
Fig. 2 is the structural representation of shin bone reamer of the present invention
Fig. 3 is the structural representation of shin bone offset distance adjuster 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 adjuster of the present invention
Fig. 9 is the internal structure schematic diagram of femur offset distance adjuster 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：
1st, shin bone reamer 2, shin bone offset distance adjuster 3, offset distance joint
4th, platform die trial 5, tibial plateau processor 6, femur milling cutter
7th, femur offset distance adjuster 8, femur milling cutter oversleeve 9, four-in-one osteotomy module
71st, handwheel 72, pilot sleeve 73, pin
74th, handle 75, pilot hole 91, through hole
92nd, groove 93, steel ball 94, spring
95th, staggered form osteotomy groove 96, horizontal osteotomy groove
Embodiment
As shown in figure 1 to figure 13, a kind of accurate eccentricity knee joint tool model system of the present invention, including shin bone tool mould
Block combines and the combination of femur tool model, and shin bone tool model combination includes shin bone reamer 1, shin bone offset distance adjuster 2, inclined
Away from joint 3, platform die trial 4 and tibial plateau processor 5, the spiral-lock of tibial plateau processor 5 is described in platform die trial 4
Connecting hole on tibial plateau processor 5 can be engaged with offset distance joint 3, and the shin bone offset distance adjuster 2 is arranged at offset distance and connect
On first 3, the shin bone reamer 1 can be inserted into the adjusting hole of shin bone offset distance adjuster 2；The femur tool model combination includes stock
Bone milling cutter 6, femur offset distance adjuster 7, femur milling cutter oversleeve 8 and four-in-one osteotomy module 9, in the four-in-one osteotomy module 9
Be provided with through hole 91, the femur milling cutter oversleeve 8 is connected with through hole 91, the femur offset distance adjuster 7 include handwheel 71,
Pilot sleeve 72, pin 73 and handle 74, the handwheel 71 are coated on the outside of pilot sleeve 72, and the pin 73 is horizontally set at
The upper position of handwheel 71, the handle 74 are articulated with pilot sleeve 72, and pilot hole 75 is provided with the pilot sleeve 72；Institute
Femur offset distance 7 devices of adjustment are stated to be engaged with femur milling cutter oversleeve 8 away from the one end of handle 74；The femur milling cutter 6 inserts pilot hole
75, through femur offset distance adjuster 7, femur milling cutter oversleeve 8 and four-in-one osteotomy module 9；The through hole of four-in-one osteotomy module 9
91 left and right ends are provided with groove 92, and the close position of through hole 91 is provided with steel ball 93, the steel ball 93 in two grooves 92
It is in contact with spring 94；The both sides of four-in-one osteotomy module 9 are symmetrically arranged with staggered form osteotomy groove 95 and horizontal osteotomy groove 96；
The shin bone offset distance adjuster 2 and femur offset distance adjuster 7 can 360 ° of any rotation regulations, realize the determination of arbitrary orientation；Institute
Having stated offset distance joint 3 and femur milling cutter oversleeve 8 has four kinds of specifications, respectively 0mm, 2.5mm, 5mm and 7.5mm.
The combination of shin bone tool model and the combination of femur tool model of the present invention is accurate eccentric throw surgical work mould
Block, covered simultaneously in the bone for realizing prosthese Maximum Contact area, it is ensured that stability of joint and the standard of articular surface and Pulp chamber
Really matching.Can ensure that locating rod is the centre in pulp cavity, to rebuild the line of force；And can ensures that jointing repair prosthesis connects completely with bone
Touch, realize the optimal bone covering of prosthese, it is ensured that stability of joint, determine condyle of femur die trial and tibial plateau die trial with extending in marrow
Eccentric distance and direction between bar, it is ensured that the position of final prosthese installation is accurate.In addition, the four-in-one in femur tool model
Osteotomy module, it is convenient and swift, surgical quality and safety are ensure that to greatest extent, have saved operating time.
Embodiments of the invention are described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All equivalent changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (2)
- A kind of 1. accurate eccentricity knee joint tool model system, it is characterised in that：Including the combination of shin bone tool model and femur Tool model combines, and the shin bone tool model combination includes shin bone reamer, shin bone offset distance adjuster, offset distance joint, platform examination Mould and tibial plateau processor, the tibial plateau processor spiral-lock is in platform die trial, on the tibial plateau processor Connecting hole can be engaged with offset distance joint, and the shin bone offset distance adjuster is arranged on offset distance joint, and the shin bone reamer can be inserted In the adjusting hole for entering shin bone offset distance adjuster；The femur tool model combination includes femur milling cutter, femur offset distance adjuster, stock Bone milling cutter oversleeve and four-in-one osteotomy module, are provided with through hole in the four-in-one osteotomy module, the femur milling cutter oversleeve with Through hole is connected, and the femur offset distance adjuster includes handwheel, pilot sleeve, pin and handle, and the handwheel, which is coated on, leads On the outside of to sleeve, the pin is horizontally set at handwheel upper position, and the handle is articulated with pilot sleeve, the guide sleeve Pilot hole is provided with cylinder；The femur offset distance adjuster is engaged away from handle one end with femur milling cutter oversleeve；The femur Milling cutter inserts pilot hole, through femur offset distance adjuster, femur milling cutter oversleeve and four-in-one osteotomy module；The four-in-one osteotomy module throughbore left and right ends are provided with groove, are provided with two grooves close to lead to the hole site Steel ball, the steel ball touch with spring interface；The four-in-one osteotomy module both sides are symmetrically arranged with staggered form osteotomy groove and horizontal osteotomy groove；Shin bone offset distance adjuster and femur the offset distance adjuster can 360 ° of any rotation regulations, realize the determination of arbitrary orientation.
- 2. accurate eccentricity knee joint tool model system according to claim 1, it is characterised in that：The offset distance joint Be provided with tetra- kinds of specifications of 0mm, 2.5mm, 5mm, 7.5mm, meet in the first severe deformities of knee joint and knee joint revision procedure by The bone covering caused by Cranial defect is insufficient and selects different eccentric distances to meet the demand of optimal prosthese bone covering.
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 |
Applications Claiming Priority (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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| CN105342667A CN105342667A (en) | 2016-02-24 |
| CN105342667B true CN105342667B (en) | 2018-02-27 |
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Families Citing this family (5)
| 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 |
| CN107496015B (en) * | 2017-09-02 | 2024-02-09 | 潍坊钰鼎生物科技有限公司 | Fracture reduction mechanism |
| CN112043469B (en) * | 2020-08-27 | 2021-12-28 | 北京市春立正达医疗器械股份有限公司 | Special-shaped tibial forming device |
| CN113288329B (en) * | 2021-06-30 | 2024-06-14 | 天衍医疗器材有限公司 | Easy-to-operate adjustable femur osteotomy tool system |
| 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 |
Citations (5)
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| US5613970A (en) * | 1995-07-06 | 1997-03-25 | Zimmer, Inc. | Orthopaedic instrumentation assembly having an offset bushing |
| CN102113910A (en) * | 2011-03-12 | 2011-07-06 | 徐栋梁 | Positioning and bone-cutting system used for minimally invasive artificial knee joint replacement |
| 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 |
| CN104042369A (en) * | 2013-03-13 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Tibial Trial Instruments For Setting Offset |
| CN104042256A (en) * | 2013-03-15 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Femoral orthopaedic surgical instruments for setting offset |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7377924B2 (en) * | 2004-09-09 | 2008-05-27 | Howmedica Osteonics Corp. | Navigated drill guided resection block |
| US8491587B2 (en) * | 2006-12-21 | 2013-07-23 | Howmedica Osteonics Corp. | Adjustable offset bushing |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5613970A (en) * | 1995-07-06 | 1997-03-25 | Zimmer, Inc. | Orthopaedic instrumentation assembly having an offset bushing |
| CN102113910A (en) * | 2011-03-12 | 2011-07-06 | 徐栋梁 | Positioning and bone-cutting system used for minimally invasive artificial knee joint replacement |
| 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 |
| CN104042369A (en) * | 2013-03-13 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Tibial Trial Instruments For Setting Offset |
| CN104042256A (en) * | 2013-03-15 | 2014-09-17 | 德普伊(爱尔兰)有限公司 | Femoral orthopaedic surgical instruments for setting offset |
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| CN105342667A (en) | 2016-02-24 |
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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. |