CN104000642B - The auxiliary universal osteotomy module of total knee replacement tibia of navigation - Google Patents

The auxiliary universal osteotomy module of total knee replacement tibia of navigation Download PDF

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Publication number
CN104000642B
CN104000642B CN201410279439.2A CN201410279439A CN104000642B CN 104000642 B CN104000642 B CN 104000642B CN 201410279439 A CN201410279439 A CN 201410279439A CN 104000642 B CN104000642 B CN 104000642B
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China
Prior art keywords
tibia
fixed block
osteotomy module
connecting rod
block
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Expired - Fee Related
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CN201410279439.2A
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Chinese (zh)
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CN104000642A (en
Inventor
王敏
姬彦辉
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Second Affiliated Hospital of TMMU
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Second Affiliated Hospital of TMMU
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14Surgical saws ; Accessories therefor
    • A61B17/142Surgical saws ; Accessories therefor with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14Surgical saws ; Accessories therefor
    • A61B17/15Guides therefor
    • A61B17/154Guides therefor for preparing bone for knee prosthesis
    • A61B17/157Cutting tibia
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564Methods for bone or joint treatment

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Dentistry (AREA)
  • Molecular Biology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Transplantation (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention discloses the auxiliary universal osteotomy module of total knee replacement tibia of a kind of navigation, comprise tibia fixed block (1), Tibial osteotomy module (2) and connecting rod (3), a spheroid (6) is installed with in the upper end of described connecting rod (3), described spheroid (6) is located in this connecting hole (13), the upper end curved surface of described spheroid (6) abuts fixed block (8), and described locking screw block (9) and Tibial osteotomy module (2) are spirally connected fixing; The lower end of this connecting rod (3) is connected with slide block (5), and described slide block (5) and tibia fixed block (1) are slidably matched.The present invention utilizes connecting rod to couple together tibia fixed block and Tibial osteotomy module, one end of connecting rod is provided with slide block, one end is connected with spheroid, spheroid can make universal rotational in tibia locating piece, and in conjunction with the slip of slide block, can in the auxiliary lower tram better regulating fixed tibial osteotomy module of navigation with this, convenience simple to operation, accuracy rate is high.

Description

The auxiliary universal osteotomy module of total knee replacement tibia of navigation
Technical field
The present invention relates to medical instruments field, particularly the auxiliary universal osteotomy module of total knee replacement tibia of one navigation.
Background technology
The auxiliary lower total knee arthroplasty of navigation has accurately, and the advantage of marrow outside fix, has invented a lot of year, but clinical application range is narrow and small, popularity rate is lower, and important reason does not have supporting instrument, if use common total knee replacement instrument, need to pinch its osteotomy module with hand steered, now osteotomy module is difficult to stable on tibia or femur, very easily rocks, needs ceaselessly to adjust, cause operating time to extend, osteotomy module easily conjugates again.How to play the advantage of the auxiliary lower total knee replacement of navigation, in the urgent need to a set of suitable specific purpose tool, shorten operating time, improve operation degree of accuracy.
Summary of the invention
The technical problem to be solved in the present invention there is provided one and is convenient to adjustment excision angle, and the universal osteotomy module of total knee replacement tibia is assisted in the navigation improving operation accuracy rate.
Technical scheme of the present invention is as follows:
The auxiliary universal osteotomy module of total knee replacement tibia of a kind of navigation, comprise tibia fixed block, Tibial osteotomy module and connecting rod, described tibia fixed block is cuboid, obtain upper surface at described tibia fixed block and be all provided with a upper and lower through fixing hole near corner place, the lower surface of this tibia fixed block is downward opening " U " connected in star, and its upper surface is provided with chute; A spheroid is provided with in the upper end of described connecting rod, the lower end of this connecting rod is connected with slide block, described slide block coordinates with slide, a tapped through hole is provided with in a side end face on described tibia fixed block length limit, be bolted with clamping screw in described tapped through hole, the end of thread of described clamping screw abuts slide block;
Described Tibial osteotomy module is inverted ingot-shaped, be provided with on one in the curved surface direction of the front end edge ingot-shaped of described Tibial osteotomy module, lower through grooving, to extend back first step along ingot-shaped curved surface level in the rear end of described Tibial osteotomy module, the second step of arc-shaped is also extended with backward at the middle part of described first step, be provided with at the middle part of described second step, lower through connecting hole, described spheroid is located in this connecting hole, also be provided with between described first step and grooving multiple on, lower through fixing hole, fixed block and locking screw block is provided with from the bottom up in described connecting hole, the lower surface of described fixed block is provided with downward opening hemispherical groove, the upper end curved surface of described spheroid is connected in described hemispherical groove, described locking screw block and connecting hole are spirally connected fixing.
Adopt above structure, the femoral surface near " U " connected in star of tibia fixed block lower surface laminating osteotomy site, the fixing hole on tibia locating piece is passed again with steel nail, steel nail is squeezed in tibia, tibia fixed block is made to be fixed on tibia, sliding slider again, makes Tibial osteotomy module move to the top of osteotomy site and clamping screw is locked; Because the spheroid on connecting rod and fixed block are curved face contact, the effect of universal rotary head can be realized, Tibial osteotomy module utilizes such effect under navigation is auxiliary, can make angle adjustment for osteotomy site, then the locking of locking screw block, then with steel nail through the fixing hole in Tibial osteotomy module, be fixed, finally through grooving, osteotomy operation is carried out to Tibial osteotomy position with the special goose saw of operation, novel structure, easy to operate, accuracy is high.
The rotation making Tibial osteotomy module in order to the frictional resistance reducing contact site is more flexible, alleviates the weight of Tibial osteotomy module simultaneously, simultaneously in order to Simplified flowsheet, reduces costs, and as preferably, described fixed block is made up of PPS material.
For the ease of the locking locking screw block when performing the operation, the angle of good fixed tibial locating piece, as preferably, the middle part of described locking screw block is provided with upper and lower through polygonal hole.
For the ease of changing spheroid or slide block, as preferably, the middle part of described connecting rod is provided with one section of flat structure, and the lower end of this connecting rod and slide block are spirally connected fixing.
In order to make spheroid position rotating, as preferably, described connecting hole is up big and down small shoulder hole.
Beneficial effect: the present invention utilizes connecting rod to couple together tibia fixed block and Tibial osteotomy module, one end of connecting rod is provided with slide block, one end is connected with spheroid, Tibial osteotomy module can make universal rotational by spheroid, and in conjunction with the slip of slide block, can in the auxiliary lower tram better regulating fixed tibial osteotomy of navigation with this, convenience simple to operation, accuracy rate is high.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention.
The structural representation of Fig. 2 spheroid, fixed block and locking screw block.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the present invention includes tibia fixed block 1, Tibial osteotomy module 2 and connecting rod 3, described tibia fixed block 1 is cuboid, all be provided with a upper and lower through fixing hole 12 near corner place in the upper surface of described tibia fixed block 1, the lower surface of this tibia fixed block 1 is downward opening " U " connected in star, and its upper surface is provided with chute 4; A spheroid 6 is installed with in the upper end of described connecting rod 3, the middle part of described connecting rod 3 is provided with one section of flat structure, lower end and the slide block 5 of this connecting rod 3 are spirally connected fixing, described slide block 5 is slidably matched with chute 4, a tapped through hole is provided with in a side end face on the described long limit of tibia fixed block 1, be bolted with clamping screw 11 in described tapped through hole, the end of thread of described clamping screw 11 abuts slide block 5;
Described Tibial osteotomy module 2 is inverted ingot-shaped, a forward and backward through grooving 10 is provided with in the curved surface direction of the front end edge ingot-shaped of described Tibial osteotomy module 2, to extend back first step 7 along ingot-shaped curved surface level in the rear end of described tibia locating piece 2, the second step 7 ' of arc-shaped is also extended with backward at the middle part of described first step 7, be provided with upper and lower through connecting hole 13 at the middle part of described second step 7 ', described connecting hole 13 is up big and down small shoulder hole.Described spheroid 6 is located in this connecting hole 13, also multiple upper and lower through fixing hole 12 is provided with between described first step 7 and grooving 10, fixed block 8 and locking screw block 9 is provided with from the bottom up in described connecting hole 13, described fixed block 8 is made up of PPS material, the lower surface injection moulding integrated molding of this fixed block 8 has downward opening hemispherical groove, the upper end curved surface of described spheroid 6 is connected in described hemispherical groove, described locking screw block 9 is spirally connected fixing with connecting hole 13, and the middle part of described locking screw block 9 is provided with upper and lower through polygonal hole.
Using method of the present invention is as follows:
As depicted in figs. 1 and 2, the femoral surface near " U " connected in star of tibia fixed block 1 lower surface laminating osteotomy site, the fixing hole 12 in Tibial osteotomy module 2 is passed again with steel nail, steel nail is squeezed in tibia, tibia fixed block 1 is made to be fixed on tibia, sliding slider 5 again, makes Tibial osteotomy module 2 move to the top of osteotomy site and clamping screw 11 is locked; Because the spheroid 6 on connecting rod 3 and fixed block 8 are curved face contact, spheroid 6 can realize the effect of universal rotary head in connecting hole 13, Tibial osteotomy module 2 utilizes such effect under navigation, can make angle adjustment for excision position, locking screw block 9 is by fixed block 8 squeeze body 6 downwards, and the spheroid 6 that is locked, it is made no longer to rotate, the fixing hole 12 in Tibial osteotomy module 2 is passed again with steel nail, Tibial osteotomy module 2 is fixed, and special goose saw of finally performing the operation carries out osteotomy operation through grooving 10 pairs of Tibial osteotomy location platform.
It is consistent with prior art that the present invention does not describe part, and therefore not to repeat here.
These are only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to do, is directly or indirectly used in the technical field that other are relevant, all in like manner within scope of patent protection of the present invention.

Claims (5)

1. the auxiliary universal osteotomy module of total knee replacement tibia of navigation, it is characterized in that: comprise tibia fixed block (1), Tibial osteotomy module (2) and connecting rod (3), described tibia fixed block (1) is cuboid, obtain upper surface described tibia fixed block (1) and be all provided with a upper and lower through fixing hole (12) near corner place, the lower surface of this tibia fixed block (1) is downward opening " U " connected in star, and its upper surface is provided with chute (4); A spheroid (6) is installed with in the upper end of described connecting rod (3), the lower end of this connecting rod (3) is connected with slide block (5), described slide block (5) and chute (4) are slidably matched, a tapped through hole is provided with in a side end face on the long limit of described tibia fixed block (1), be bolted with clamping screw (11) in described tapped through hole, the end of thread of described clamping screw (11) abuts slide block (5);
Described Tibial osteotomy module (2) is inverted ingot-shaped, be provided with on one in the curved surface direction of the front end edge ingot-shaped of described Tibial osteotomy module (2), lower through grooving (10), to extend back first step (7) along ingot-shaped curved surface level in the rear end of described Tibial osteotomy module (2), the second step (7 ') of arc-shaped is also extended with backward at the middle part of described first step (7), be provided with at the middle part of described second step (7 '), lower through connecting hole (13), described spheroid (6) is located in this connecting hole (13), also be provided with between described first step (7) and grooving (10) multiple on, lower through fixing hole (12), fixed block (8) and locking screw block (9) is provided with from the bottom up in described connecting hole (13), the lower surface of described fixed block (8) is provided with downward opening hemispherical groove, the upper end curved surface of described spheroid (6) is connected in described hemispherical groove, described locking screw block (9) and connecting hole (13) are spirally connected fixing.
2. the universal osteotomy module of total knee replacement tibia is assisted in navigation according to claim 1, it is characterized in that: described fixed block (8) is made up of PPS material.
3. the universal osteotomy module of total knee replacement tibia is assisted in navigation according to claim 1, it is characterized in that: the middle part of described locking screw block (9) is provided with upper and lower through polygonal hole.
4. the universal osteotomy module of total knee replacement tibia is assisted in navigation according to claim 1, it is characterized in that: the middle part of described connecting rod (3) is provided with one section of flat structure, lower end and the slide block (5) of this connecting rod (3) are spirally connected fixing.
5. the universal osteotomy module of total knee replacement tibia is assisted in navigation according to claim 1, it is characterized in that: described connecting hole (13) is up big and down small shoulder hole.
CN201410279439.2A 2014-06-20 2014-06-20 The auxiliary universal osteotomy module of total knee replacement tibia of navigation Expired - Fee Related CN104000642B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104783861B (en) * 2015-04-10 2017-08-01 北京大学第三医院 Total knee arthroplasty distal femur Multifunction cutting bone conduction panel assembly and preparation method
CN104825215B (en) * 2015-05-22 2017-03-15 北京爱康宜诚医疗器材股份有限公司 Osteotomy guide plate
CN106691536B (en) * 2015-07-29 2019-05-10 北京纳通科技集团有限公司 Locator in shin bone marrow

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US6423061B1 (en) * 2000-03-14 2002-07-23 Amei Technologies Inc. High tibial osteotomy method and apparatus
EP2032046B1 (en) * 2006-06-12 2015-11-04 Smith & Nephew, Inc. Systems and devices for tibial resection
US8118815B2 (en) * 2009-07-24 2012-02-21 OrthAlign, Inc. Systems and methods for joint replacement
CA2831840C (en) * 2011-02-22 2017-08-22 Knee Creations, Llc Navigation and positioning systems and guide instruments for joint repair
US20130030443A1 (en) * 2011-06-30 2013-01-31 Wright Abraham P Patella drill guide and clamp assembly
US8795284B2 (en) * 2011-10-13 2014-08-05 Musculoskeletal Transplant Foundation Instrumentation for repair of meniscus tissue
CN103654924A (en) * 2013-12-13 2014-03-26 中国人民解放军第三军医大学第二附属医院 Tibia cutting device based on ankle joint planar ultrasonic guidance positioning
CN203619685U (en) * 2013-12-18 2014-06-04 宁波市全灵医疗设备股份有限公司 Orthopedic navigation device

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