CN105708529A - Posterior cruciate ligament protection device for total knee replacement - Google Patents
Posterior cruciate ligament protection device for total knee replacement Download PDFInfo
- Publication number
- CN105708529A CN105708529A CN201610037625.4A CN201610037625A CN105708529A CN 105708529 A CN105708529 A CN 105708529A CN 201610037625 A CN201610037625 A CN 201610037625A CN 105708529 A CN105708529 A CN 105708529A
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- cruciate ligament
- posterior cruciate
- handle
- total knee
- accessory plate
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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
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
Abstract
The invention relates to a posterior cruciate ligament protection device for total knee replacement. The posterior cruciate ligament protection device is characterized by comprising a handle, wherein one end of the handle is fastened and connected with an auxiliary plate; the inner surface of the auxiliary plate is of an arc-shaped structure; one end, far away from the handle, of the auxiliary plate is fastened and connected with a fixed protection plate; the inner surface of the fixed protection plate is provided with a groove structure; and the end part, far away from the auxiliary plate, of the fixed protection plate is provided with a cutting edge. One end of the handle is fastened and connected with the auxiliary plate for covering a thighbone trochlear groove, and the fixed protection plate inserted into the tibial plateau sclerotin is fastened and connected into a position, far away from the handle, of the auxiliary plate, so that in the use process, the tibial plateau can be forwards pushed out relative to the thighbone by using the lever principle; and the convenience is brought to osteotomy. The inner surface of the fixed protection plate is provided with the groove structure, so that the posterior cruciate ligament and the posterior cruciate ligament bottom dead center can be covered and protected, and the posterior cruciate ligament tibial lateral bottom dead center avulsion fracture in and after the operation can be prevented.
Description
Technical field
The present invention relates to a kind of posterior cruciate ligament for total knee arthroplasty and protect device, belong to medical instruments field.
Background technology
Knee joint is one of most important joint of human body, along with the rising of fat, social senilization and athletic injury sickness rate, suffers from the middle-aged and elderly people quantity cumulative year after year of knee joint degenerative disorders.Total knee arthroplasty is the Main Means of the treatment serious knee joint degenerative osteoarthritis of middle and advanced stage, it is possible to effectively alleviate the gonalgia, rebuilds function of joint and mobility, obtains clinical practice widely.2010, U.S.'s total knee replacement whole year amount for surgical reached 600,000 examples, it is contemplated that to the year two thousand thirty, and the U.S. will have 3,480,000 example total knee replacement operations every year.Compared with western countries, China suffers from the patient numbers of osteoarthritis up to 65,000,000, the prevalence of more than 30 years old crowds is 10%～17%, over-65s crowd is 60%, within more than 75 years old, crowd is 80%, wherein disability rate is up to 53%, this shows that the needs of patients of more than half carries out total knee replacement operation.The purpose of total knee arthroplasty is to recover the motion of Normal Knee, retains normal Range of motion of knee joint and stability, keeps the somesthetic sensibility that knee joint is good.And the complete reservation of posterior cruciate ligament plays vital effect for recovery and the walking step state of kneed stability and postoperative knee joint somesthetic sensibility when operation.
Posterior cruciate ligament be in knee joint cavity very important front and back to spin stabilization structure.It is that two ends are thick, the round rope bar shaped of intermediate elongated, and surface-coated one layer of synovial membrane, posterior cruciate ligament average length is 34～38mm, and mean breadth is 10～13mm.The attachment region of posterior cruciate ligament femur is positioned at the lateral surface sclerotin of femur condyle, it is shaped as semi-circular, width is 19～21mm, downward rear is to traveling, terminating in the rear portion sclerotin of facies malleolaris lateralis in tibia, in irregular tetragon, interior outside width is 10～12mm, and extend rearward to the about 1cm place, lower section of tibial plateau, the stop place of lateral meniscus relief angle in the next-door neighbour of its front.Posterior cruciate ligament moves after having restriction tibia, stretch after knee joint, rotates and the physiological function of knee joint side activity.
In existing total knee replacement is performed the operation; owing to there is no special operating theater instruments or unit protection posterior cruciate ligament; only by estimating or using long steel nail to determine position and the size of posterior cruciate ligament lower dead center bone piece, not only waste time and energy, and posterior cruciate ligament protected effect is not good enough.When carrying out tibial plateau osteotomy with motor pendulum saw blade, very easily there is posterior cruciate ligament tibial side lower dead center bone piece part avulsion or completely avulsion, cause posterior cruciate ligament to relax, and then affect postoperative curative effect and knee-joint prosthesis service life, cause operative failure.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of special posterior cruciate ligament for total knee arthroplasty and protect device.
For achieving the above object; the present invention takes techniques below scheme: a kind of posterior cruciate ligament for total knee arthroplasty protects device; it is characterized in that: it includes one handle, be fastenedly connected an accessory plate in one end of described handle, described accessory plate inner surface is arc；Being fastenedly connected a fixing backplate at described accessory plate away from one end of described handle, the inner surface of described fixing backplate is provided with groove structure；At described fixing backplate, one end of described accessory plate is provided with cutting edge.
On the outer surface of described fixing backplate, the position near described accessory plate is fastenedly connected a spacing preiection.
Described groove structure is circular groove or rectangular recess.
Described cutting edge is laciniation.
Described handle, described accessory plate and described fixing backplate all adopt stainless steel material to make.
Described handle is provided with antiskid thread.
Due to the fact that and take above technical scheme, it has the advantage that 1, due to the fact that the accessory plate being fastenedly connected a parcel femoral bone pulley ditch in one end of handle, it is fastenedly connected the fixing backplate of an insertion tibial plateau sclerotin away from the position of handle at accessory plate, therefore lever principle can be utilized in use to be released forward by relative for tibial plateau femur, it is simple to osteotomy.2, the accessory plate of the present invention is set to arc due to inner surface, therefore can adapt to the bone shape of femoral bone pulley ditch in use and is easy to fix, and can also play the effect of parcel protection posterior cruciate ligament simultaneously.3, the fixing backplate of the present invention is provided with groove structure due to inner surface, therefore, it is possible to wrap up and protect posterior cruciate ligament and posterior cruciate ligament lower dead center, it is prevented that posterior cruciate ligament tibial side lower dead center avulsion fracture in operation.4, apparatus of the present invention simple in construction, easy to use and low cost of manufacture, highly shortened the operating time of medical personnel.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the side-looking structural representation of Fig. 1；
Fig. 3 is the structural representation of the fixing backplate of the present invention；
Fig. 4 is the schematic cross-section of the fixing backplate of the present invention；
Fig. 5 is the operating diagram of apparatus of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figures 1 to 3, the present invention includes one handle 1, is fastenedly connected an accessory plate 2 in one end of handle 1, and the inner surface of accessory plate 2 is set to circular arc, is used for mating femoral bone pulley ditch profile and wrapping up protection posterior cruciate ligament.Being fastenedly connected a fixing backplate 3 at accessory plate 2 away from handle 1 one end, the inner surface of fixing backplate 3 is provided with groove structure 32 (as shown in Figure 4), is used for wrapping up and protect posterior cruciate ligament and posterior cruciate ligament lower dead center.At fixing backplate 3, the end of accessory plate 2 is provided with the cutting edge 31 facilitating insertion into tibial plateau sclerotin.
In above-described embodiment, groove structure 32 can be circular groove or rectangular recess.
In above-described embodiment, on the outer surface of fixing backplate 3, the position near accessory plate 2 is fastenedly connected a spacing preiection 4, inserts the distance of tibial plateau sclerotin for limiting backplate 3.
In above-described embodiment, cutting edge 31 can be laciniation.
In above-described embodiment, handle 1 is provided with antiskid thread.
In above-described embodiment, handle 1, accessory plate 2 and fixing backplate 3 all adopt stainless steel material to make.
As shown in Figure 5, the present invention is used for total knee arthroplasty, in use first flexing knee joint to 90 °～110 °, remove anterior cruciate ligament, appear posterior cruciate ligament and be positioned at slightly biased outer stop on rear side of tibial plateau 5, then accessory plate 2 is wrapped in coaster ditch and posterior cruciate ligament 7 front of femur 6, fixing backplate 3 is surrounded the sclerotin place around the tibial side stop of posterior cruciate ligament 7 completely, and it is perpendicular to tibial plateau 5 by cutting edge 31 by fixing backplate 3 hammer driven tibial plateau 5 sclerotin, until spacing preiection 4 contacts with tibial plateau 5.Then lever principle is utilized; hands gripping handle 1 is exerted oneself backward; and then drive accessory plate 2 to be released forward by relative for tibial plateau 5 femur 6; make tibial plateau 5 fully appear and utilize goose saw sheet 8 that tibial plateau 5 is carried out osteotomy; with fixing backplate 3, posterior cruciate ligament lower dead center is protected; therefore it is possible to prevent during goose saw sheet 8 osteotomy and posterior cruciate ligament 7 is caused damage, completely remain posterior cruciate ligament tibial plateau stop sclerotin, it is prevented that posterior cruciate ligament tibial side lower dead center avulsion fracture in operation.
The various embodiments described above are merely to illustrate the present invention, and wherein the structure of each parts, connected mode etc. all can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. the posterior cruciate ligament protection device for total knee arthroplasty, it is characterised in that: it includes one handle, is fastenedly connected an accessory plate in one end of described handle, and described accessory plate inner surface is arc；Being fastenedly connected a fixing backplate at described accessory plate away from one end of described handle, the inner surface of described fixing backplate is provided with groove structure；At described fixing backplate, one end of described accessory plate is provided with cutting edge.
2. a kind of posterior cruciate ligament for total knee arthroplasty protects device as claimed in claim 1, it is characterised in that: on the outer surface of described fixing backplate, the position near described accessory plate is fastenedly connected a spacing preiection.
3. a kind of posterior cruciate ligament for total knee arthroplasty protects device as claimed in claim 1, it is characterised in that: described groove structure is circular groove or rectangular recess.
4. a kind of posterior cruciate ligament for total knee arthroplasty protects device as claimed in claim 2, it is characterised in that: described groove structure is circular groove or rectangular recess.
5. a kind of posterior cruciate ligament for total knee arthroplasty as claimed in claim 1 or 2 or 3 or 4 protects device, it is characterised in that: described cutting edge is laciniation.
6. a kind of posterior cruciate ligament for total knee arthroplasty as claimed in claim 1 or 2 or 3 or 4 protects device, it is characterised in that: described handle, described accessory plate and described fixing backplate all adopt stainless steel material to make.
7. a kind of posterior cruciate ligament for total knee arthroplasty protects device as claimed in claim 5, it is characterised in that: described handle, described accessory plate and described fixing backplate all adopt stainless steel material to make.
8. a kind of posterior cruciate ligament for total knee arthroplasty as claimed in claim 1 or 2 or 3 or 4 protects device, it is characterised in that: described handle is provided with antiskid thread.
9. a kind of posterior cruciate ligament for total knee arthroplasty protects device as claimed in claim 5, it is characterised in that: described handle is provided with antiskid thread.
10. a kind of posterior cruciate ligament for total knee arthroplasty protects device as claimed in claim 6, it is characterised in that: described handle is provided with antiskid thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037625.4A CN105708529B (en) | 2016-01-20 | 2016-01-20 | A kind of posterior cruciate ligament of knee protective device for total knee arthroplasty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610037625.4A CN105708529B (en) | 2016-01-20 | 2016-01-20 | A kind of posterior cruciate ligament of knee protective device for total knee arthroplasty |
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| Publication Number | Publication Date |
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| CN105708529A true CN105708529A (en) | 2016-06-29 |
| CN105708529B CN105708529B (en) | 2018-05-08 |
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| CN201610037625.4A Active CN105708529B (en) | 2016-01-20 | 2016-01-20 | A kind of posterior cruciate ligament of knee protective device for total knee arthroplasty |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725716A (en) * | 2017-01-04 | 2017-05-31 | 中国人民解放军第三军医大学第二附属医院 | Tibial plateau inner edge osteotomy orienting locator |
| CN108125715A (en) * | 2017-12-29 | 2018-06-08 | 西热尼江·依克木 | Tibial insertion of posterior cruciate ligament tunnel guider |
| CN109730744A (en) * | 2019-01-30 | 2019-05-10 | 首都医科大学附属北京康复医院（北京工人疗养院） | Osteotomy tool |
| CN113081094A (en) * | 2021-04-02 | 2021-07-09 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Single condyle replacement osteotomy protector |
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| US5217463A (en) * | 1990-04-11 | 1993-06-08 | Mikhail W F Michael | Method for performing knee surgery and retractors for use therein |
| US20040039395A1 (en) * | 2002-05-24 | 2004-02-26 | Coon Thomas M. | Instruments for knee surgery and method of use |
| US20060095042A1 (en) * | 2004-10-29 | 2006-05-04 | Howmedica Osteonics Corp. | Ligament protection instruments |
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| CN204683699U (en) * | 2015-05-19 | 2015-10-07 | 中国人民解放军第四军医大学 | The vertical osteotomy guiding protector of tibia |
| CN204744360U (en) * | 2015-05-26 | 2015-11-11 | 邬波 | Outside knee joint tenaculum leads out sled board |
| CN205379349U (en) * | 2016-01-20 | 2016-07-13 | 首都医科大学附属北京朝阳医院 | A posterior cruciate ligament protection device for making perfect knee joint displacement technique |
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2016
- 2016-01-20 CN CN201610037625.4A patent/CN105708529B/en active Active
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| US5217463A (en) * | 1990-04-11 | 1993-06-08 | Mikhail W F Michael | Method for performing knee surgery and retractors for use therein |
| US20040039395A1 (en) * | 2002-05-24 | 2004-02-26 | Coon Thomas M. | Instruments for knee surgery and method of use |
| US20060095042A1 (en) * | 2004-10-29 | 2006-05-04 | Howmedica Osteonics Corp. | Ligament protection instruments |
| CN202104981U (en) * | 2011-04-19 | 2012-01-11 | 徐苗 | Drill limiter |
| CN103190946A (en) * | 2013-04-27 | 2013-07-10 | 上海市杨浦区中心医院 | Tibia osteotomic protective device for unicompartmental arthroplasty |
| CN204683699U (en) * | 2015-05-19 | 2015-10-07 | 中国人民解放军第四军医大学 | The vertical osteotomy guiding protector of tibia |
| CN204744360U (en) * | 2015-05-26 | 2015-11-11 | 邬波 | Outside knee joint tenaculum leads out sled board |
| CN205379349U (en) * | 2016-01-20 | 2016-07-13 | 首都医科大学附属北京朝阳医院 | A posterior cruciate ligament protection device for making perfect knee joint displacement technique |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725716A (en) * | 2017-01-04 | 2017-05-31 | 中国人民解放军第三军医大学第二附属医院 | Tibial plateau inner edge osteotomy orienting locator |
| CN108125715A (en) * | 2017-12-29 | 2018-06-08 | 西热尼江·依克木 | Tibial insertion of posterior cruciate ligament tunnel guider |
| CN109730744A (en) * | 2019-01-30 | 2019-05-10 | 首都医科大学附属北京康复医院（北京工人疗养院） | Osteotomy tool |
| CN113081094A (en) * | 2021-04-02 | 2021-07-09 | 上海市杨浦区中心医院(同济大学附属杨浦医院) | Single condyle replacement osteotomy protector |
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| Publication number | Publication date |
|---|---|
| CN105708529B (en) | 2018-05-08 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20161201 Address after: 100020 Beijing City, Chaoyang District Road No. 8 Applicant after: Zhou Lei Address before: 100020 Chaoyang District Workers Stadium South Road, No. 8, Beijing Applicant before: Beijing Chaoyang Hospital Attached to Capital Medical Univ. |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Lei Inventor after: Qu Tiebing Inventor after: Lin Yuan Inventor after: Pan Jiang Inventor after: Wang Zhiwei Inventor after: Ren Shixiang Inventor after: Chen Tong Inventor before: Zhou Lei Inventor before: Qu Tiebing Inventor before: Lin Yuan Inventor before: Pan Jiang Inventor before: Wang Zhiwei |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180409 Address after: 100020 Chaoyang District Workers Stadium South Road, No. 8, Beijing Applicant after: Beijing Chaoyang Hospital Attached to Capital Medical Univ. Address before: 100020 Beijing City, Chaoyang District Road No. 8 Applicant before: Zhou Lei |
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