CN108451675B - Distal end fixed prosthesis femur holder - Google Patents

Distal end fixed prosthesis femur holder Download PDF

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Publication number
CN108451675B
CN108451675B CN201810241688.0A CN201810241688A CN108451675B CN 108451675 B CN108451675 B CN 108451675B CN 201810241688 A CN201810241688 A CN 201810241688A CN 108451675 B CN108451675 B CN 108451675B
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CN
China
Prior art keywords
holding part
femur
positioning shaft
clamp part
holder
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Application number
CN201810241688.0A
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Chinese (zh)
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CN108451675A (en
Inventor
柴伟
陈继营
邓泰年
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Chinese PLA General Hospital
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Chinese PLA General Hospital
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Priority to CN201810241688.0A priority Critical patent/CN108451675B/en
Publication of CN108451675A publication Critical patent/CN108451675A/en
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Publication of CN108451675B publication Critical patent/CN108451675B/en
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Classifications

    • 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
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4607—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of hip femoral endoprostheses
    • 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
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • 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
    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof

Abstract

The application discloses a distal fixed prosthesis femur holder, which comprises a front holding part, a rear holding part and a positioning shaft, wherein the positioning shaft penetrates through a rotating shaft hole of the holding part and is vertically arranged with the front holding part and the rear holding part; the front end of the positioning shaft is provided with a positioning plate, and the positioning plate is positioned at the outer side of the front holding part; the front holding part and the rear holding part are composed of a left clamp part, a right clamp part, a ratchet bar and a spring piece, wherein the left clamp part is connected with the right clamp part through riveting, the spring piece is arranged on the inner sides of the left clamp part and the right clamp part, the ratchet bar is arranged at the tail end of the right clamp part, and the tail end of the left clamp part is clamped on the ratchet bar. The technical scheme provided by the application has reasonable structure and convenient operation, and the parallel clamping and fixing are carried out on the femur at two ends which need to be butted after the parallel osteotomy of the prior hip operation, so that the time of binding and disassembling the steel wire before and after the prosthesis implantation is saved, the two ends of the femoral medullary cavity are on the same straight line when the prosthesis implantation is ensured, the operation time is shortened, and the success rate of the operation is improved.

Description

Distal end fixed prosthesis femur holder
Technical Field
The application relates to the technical field of medical equipment, in particular to a distal fixed prosthesis femur holder.
Background
Congenital dislocation of hip joint is also called developmental dislocation of hip joint or dysplasia of hip joint. The femoral head loses its normal relationship with the acetabulum in the joint capsule, resulting in complications such as joint movement disorder, dermatoglyph, perineal changes, lameness gait, limb shortening deformity, etc. The symptoms can be treated by operation, the operation can adopt a femur rotation osteotomy and a femur shortening osteotomy to be in section butt joint, and then a repair prosthesis is penetrated into the proximal end of the femoral medullary cavity to form fixation.
In the existing operation, the body position of a patient is fixed at first, the operation treatment is usually carried out in a posterior way, and after the femur bone is cut in parallel, the femur bones at the two ends are needed to be butted, so that the prosthesis can be smoothly penetrated. In surgery, the femur needs to be held manually by a doctor, and in order to avoid cracking of the distal end after the prosthesis is implanted, the steel wire needs to be bound at the distal end of the femur. In the process of beating and implanting the prosthesis, vibration is difficult to avoid, and free hand clamping is difficult to ensure that the marrow cavities of two sections of femur are kept on a straight line in the beating process; during the process of striking the prosthesis, the proximal femur part is easy to rotate, resulting in deviation of the anteversion angle; binding and removing the steel wire during surgery can prolong the operation time and increase the risk of failure of the operation.
Rapid and precise penetration of the prosthesis during surgery has a decisive influence on the final effect of the surgery, and therefore there is a need to design a distal fixation prosthetic femoral holder that solves the problems of the prior art.
Disclosure of Invention
The application aims at solving the technical problems, and provides the distal fixed prosthesis femur holder which is reasonable in structure and convenient to operate, and is used for carrying out parallel clamping and fixing on femur at two ends which are required to be butted after parallel osteotomy in a hip operation, so that the time for binding and disassembling steel wires before and after prosthesis implantation is saved, the two ends of a femur medullary cavity are on the same straight line when prosthesis implantation is ensured, the operation time is shortened, and the success rate of the operation is improved.
The technical proposal of the application
In order to solve the technical problems, the application provides a distal fixed prosthesis femur holder, which specifically comprises a front holding part, a rear holding part and a positioning shaft, wherein the positioning shaft penetrates through a rotating shaft hole of the holding part and is arranged perpendicular to the front holding part and the rear holding part; the front end of the positioning shaft is provided with a positioning plate, and the positioning plate is positioned at the outer side of the front holding part; the front holding part and the rear holding part are composed of a left clamp part, a right clamp part, a ratchet bar and a spring piece, wherein the left clamp part is connected with the right clamp part through riveting, the spring piece is arranged on the inner sides of the left clamp part and the right clamp part, the ratchet bar is arranged at the tail end of the right clamp part, and the tail end of the left clamp part is clamped on the ratchet bar.
In the application, the front gripping part and the rear gripping part are vertically connected to the positioning shaft, so that the jaw planes of the front gripping part and the rear gripping part are always parallel, and the positioning shaft limits the swing of the front gripping part and the rear gripping part along the axial direction and can only translate left and right; the positioning plate at the front end of the positioning shaft can assist in marking the anteversion angle of the femoral head and assist a doctor in anteversion angle positioning when a prosthesis is implanted; after parallel osteotomy of the hip operation, the femur holder of the far-end fixed prosthesis clamps the femur in parallel, when the prosthesis is hit and implanted, the bone marrow cavities at the front end and the back end are on the same straight line, thereby effectively shortening the operation time and improving the success rate of the operation.
In some embodiments, the locating plate forms an included angle of 15 degrees with the coronal surface of the human body, and the locating plate can assist in marking the anteversion angle of the femoral head, so that the adjustment in the operation of doctors is facilitated.
In some embodiments, the front holding part and the rear holding part are parallel to each other, and can freely slide along the positioning shaft, so as to be suitable for flexible adjustment of medical staff in surgery.
In some embodiments, the front grip jaw has a width greater than the width of the rear grip jaw, and the front grip jaw is provided with a groove. The arrangement of the groove can avoid the position of the small tuberosity of the femur so as to facilitate the clamping of the femur.
In some embodiments, the inner sides of the left and right pincers are tooth-shaped structures. The contact surface between the jaw and the femur can be enhanced by the arrangement of the tooth-shaped structure, and the reliability of holding and fixing is ensured.
In some embodiments, threaded through holes are formed in the jaw parts of the left forceps part and the right forceps part, and the fastening screw is screwed in through the threaded through holes and is in contact with the femur of the patient. During operation, the fastening screw can penetrate through the threaded through hole, so that the top of the fastening screw is contacted with the femur, sliding and rotating friction are prevented, clamping strength is improved, and the reliability of holding and fixing is ensured.
In some embodiments, at least one pair of threaded through holes is provided at the jaws of the left and right pliers, respectively. The screw through holes are arranged in pairs, and the fastening screw penetrates through the screw through holes, so that the top of the fastening screw is contacted with the femur, and the reliability of holding and fixing is ensured.
The application has the beneficial effects that:
the application provides a distal fixed prosthesis femur holder, which has reasonable structure and the following technical effects:
(1) The front holding part and the rear holding part are vertically connected to the positioning shaft, the prosthesis femur holder is fixed at the far end to clamp femur in parallel, and when the prosthesis is hit and implanted, the bone marrow cavities at the front end and the rear end are on the same straight line, so that the operation time is effectively shortened, and the success rate of the operation is improved;
(2) The locating plate at the front end of the locating shaft can assist in marking the anteversion angle of the femoral head and assist doctors in locating the anteversion angle when the prosthesis is implanted.
Drawings
The above-described advantages of the present application will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative only and not limiting of the application, wherein:
FIG. 1 is a schematic view of a distal stationary prosthetic femoral holder according to the present application;
fig. 2 is a side view of the front or rear grip of the present application.
In the drawings, the components represented by the respective reference numerals are as follows:
1. a front grip; 2. a rear grip; 3. positioning a shaft; 4. a positioning plate; 5. a left clamp portion; 6. a right clamp portion; 7. a ratchet bar; 8. a spring piece; 9. a groove; 10. and (5) fastening a screw.
Detailed Description
Fig. 1 and 2 are related drawings of a distal fixation prosthetic femoral holder according to the present application, and the present application will be described in detail with reference to the specific embodiments and drawings.
The examples described herein are specific embodiments of the present application, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the application to the embodiments and scope of the application. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification, including those adopting any obvious substitutions and modifications to the embodiments described herein.
The drawings in the present specification are schematic views, which assist in explaining the concept of the present application, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structure of each component of the embodiment of the present application, the same reference numerals are used for the same parts.
The application relates to a structure schematic diagram of a distal fixed prosthesis femur holder, as shown in fig. 1, which comprises a front holding part 1, a rear holding part 2 and a positioning shaft 3, wherein the positioning shaft 3 passes through a rotation shaft hole of the holding part and is arranged vertically to the front holding part 1 and the rear holding part 2; the front end of the positioning shaft 3 is provided with a positioning plate 4, and the positioning plate 4 is positioned outside the front holding part 1.
In the present application, the front grip part 1 and the rear grip part 2 are vertically connected to the positioning shaft 3, and the front grip part 1 and the rear grip part 2 are parallel to each other and can slide freely along the positioning shaft 3. The positioning shaft 3 limits the swing of the front holding part 1 and the rear holding part 2 along the axial direction and can only translate left and right; after parallel osteotomy of the hip operation, the femur holder of the far-end fixed prosthesis clamps the femur in parallel, when the prosthesis is hit and implanted, the bone marrow cavities at the front end and the back end are on the same straight line, thereby effectively shortening the operation time and improving the success rate of the operation.
The locating plate 4 forms an included angle of 15 degrees with the coronal surface of a human body, the locating plate 4 at the front end of the locating shaft 3 can assist in marking the anteversion angle of the femoral head, assist doctors in carrying out anteversion angle locating when the prosthesis is implanted, shorten operation time and improve operation success rate.
Fig. 2 is a side view of a front grip portion or a rear grip portion of the present application, the front grip portion 1 and the rear grip portion 2 are composed of a left grip portion 5, a right grip portion 6, a ratchet bar 7 and a spring piece 8, the left grip portion 5 and the right grip portion 6 are connected by riveting, the spring piece 8 is disposed inside the left grip portion 5 and the right grip portion 6, the ratchet bar 7 is disposed at the tail end of the right grip portion 6, and the tail end of the left grip portion 5 is clamped on the ratchet bar 7.
In the application, the width of the jaw of the front gripping part 1 is larger than that of the jaw of the rear gripping part 2, and the jaw of the front gripping part 1 is provided with a groove 9. The grooves 9 can avoid the position of the small tuberosity of the femur so as to facilitate the clamping of the femur.
The inner sides of the jaws of the left forceps part 5 and the right forceps part 6 are of tooth-shaped structures, and the contact surface between the jaws and the femur can be enhanced by the arrangement of the tooth-shaped structures, so that the reliability of holding and fixing is ensured.
The jaws of the left forceps part 5 and the right forceps part 6 are provided with threaded through holes, and the fastening screw 10 is screwed in and contacted with the femur of the patient through the threaded through holes. At least one pair of threaded through holes are arranged at the jaw parts of the left clamp part 5 and the right clamp part 6. During operation, the fastening screw 10 can penetrate through the threaded through hole, so that the top of the fastening screw 10 is in contact with the femur, sliding and rotating friction are prevented, clamping strength is improved, and the reliability of holding and fixing is guaranteed.
Compared with the prior art, the distal fixed prosthesis femur holder provided by the application has the advantages that the structure is reasonable, the operation is convenient, the parallel clamping and fixing are carried out on the femur at the two ends which are needed to be butted after the parallel osteotomy of the prior hip operation, the time of binding and disassembling the steel wire before and after the prosthesis implantation is omitted, the two ends of the femur medullary cavity are on the same straight line when the prosthesis implantation is ensured, the operation time is shortened, and the success rate of the operation is improved.
The present application is not limited to the above embodiments, and any person can obtain other products in various forms under the teaching of the present application, however, any changes in shape or structure of the products are included in the scope of protection of the present application, and all the products having the same or similar technical solutions to the present application are included in the present application.

Claims (5)

1. A distal fixed prosthesis femur holder, which is characterized by comprising a front holding part (1), a rear holding part (2) and a positioning shaft (3), wherein the positioning shaft (3) passes through a rotating shaft hole of the holding part and is arranged vertically to the front holding part (1) and the rear holding part (2); the front end of the positioning shaft (3) is provided with a positioning plate (4), and the positioning plate (4) is positioned at the outer side of the front holding part (1); the front holding part (1) and the rear holding part (2) are composed of a left clamping part (5), a right clamping part (6), a ratchet bar (7) and a spring piece (8), wherein the left clamping part (5) is connected with the right clamping part (6) through riveting, the spring piece (8) is arranged on the inner sides of the left clamping part (5) and the right clamping part (6), the ratchet bar (7) is arranged at the tail end of the right clamping part (6), and the tail end of the left clamping part (5) is clamped on the ratchet bar (7);
the locating plate (4) forms an included angle of 15 degrees with the coronal surface of the human body;
the width of the jaw of the front holding part (1) is larger than that of the jaw of the rear holding part (2), and a groove (9) is formed in the jaw of the front holding part (1).
2. The distally fixed prosthetic femoral holder according to claim 1, characterized in that the front grip (1) and the rear grip (2) are mutually parallel, which are free to slide along a positioning shaft (3).
3. The distal fixation prosthetic femoral holder of claim 1, wherein the left (5) and right (6) jaws are internally toothed.
4. The distal fixation prosthesis femur holder according to claim 1, characterized in that the jaws of the left (5) and right (6) jaws are provided with threaded through holes through which fastening screws (10) are screwed and in contact with the patient's femur.
5. The distal fixation prosthetic femoral holder of claim 4, wherein at least one pair of threaded through holes is provided at the jaws of the left and right jaws (5, 6), respectively.
CN201810241688.0A 2018-03-22 2018-03-22 Distal end fixed prosthesis femur holder Active CN108451675B (en)

Priority Applications (1)

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CN201810241688.0A CN108451675B (en) 2018-03-22 2018-03-22 Distal end fixed prosthesis femur holder

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Application Number Priority Date Filing Date Title
CN201810241688.0A CN108451675B (en) 2018-03-22 2018-03-22 Distal end fixed prosthesis femur holder

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CN108451675A CN108451675A (en) 2018-08-28
CN108451675B true CN108451675B (en) 2023-10-13

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110916857B (en) * 2019-12-25 2022-06-07 保定向阳航空精密机械有限公司 Condyle holding device convenient for prosthesis implantation

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EP0408109A1 (en) * 1989-07-10 1991-01-16 Biotecnic Societe Anonyme Device to assist the implantation, and allow the removel of, a hip prosthesis shaft
CN2347550Y (en) * 1998-12-08 1999-11-10 温巨平 Holder for fracture of femoral neck and intertrochanter fracture of femur
CN201701337U (en) * 2010-05-18 2011-01-12 创生医疗器械(江苏)有限公司 Hip joint replacement director
JP2012040150A (en) * 2010-08-18 2012-03-01 Wright Medical Japan Kk Osteotomy pretreatment tool before artificial knee joint replacement
CN204192702U (en) * 2014-10-27 2015-03-11 泸州市中医医院 Femoral bone tuberosity reduction forceps
CN104799920A (en) * 2014-01-26 2015-07-29 张国强 General and personalized total knee prosthesis distal femur osteotomy appliance
CN204618491U (en) * 2015-01-30 2015-09-09 中国人民解放军总医院 Implanted justice refers to system
JP2015192873A (en) * 2014-03-28 2015-11-05 アルスロデザイン株式会社 joint replacement surgical instrument
CN107184260A (en) * 2017-07-07 2017-09-22 遵义医学院附属医院 A kind of long bone osteotomy device
CN208598589U (en) * 2018-03-22 2019-03-15 中国人民解放军总医院 A kind of distal end fixed fae body femur holder

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US20080255574A1 (en) * 2007-04-13 2008-10-16 Zimmer Technology, Inc. Instrument for insertion of prosthetic components
US8398686B2 (en) * 2009-11-27 2013-03-19 Rahul Vaidya Method and apparatus for minimally invasive subcutaneous treatment of long bone fractures
US9364245B2 (en) * 2012-06-15 2016-06-14 Microport Orthopedics Holdings Inc. Patellar clamping instrument
US10028751B2 (en) * 2014-08-18 2018-07-24 Medevice Solutions, LLC Positioning and template system for preparing a femur for knee replacement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408109A1 (en) * 1989-07-10 1991-01-16 Biotecnic Societe Anonyme Device to assist the implantation, and allow the removel of, a hip prosthesis shaft
CN2347550Y (en) * 1998-12-08 1999-11-10 温巨平 Holder for fracture of femoral neck and intertrochanter fracture of femur
CN201701337U (en) * 2010-05-18 2011-01-12 创生医疗器械(江苏)有限公司 Hip joint replacement director
JP2012040150A (en) * 2010-08-18 2012-03-01 Wright Medical Japan Kk Osteotomy pretreatment tool before artificial knee joint replacement
CN104799920A (en) * 2014-01-26 2015-07-29 张国强 General and personalized total knee prosthesis distal femur osteotomy appliance
JP2015192873A (en) * 2014-03-28 2015-11-05 アルスロデザイン株式会社 joint replacement surgical instrument
CN204192702U (en) * 2014-10-27 2015-03-11 泸州市中医医院 Femoral bone tuberosity reduction forceps
CN204618491U (en) * 2015-01-30 2015-09-09 中国人民解放军总医院 Implanted justice refers to system
CN107184260A (en) * 2017-07-07 2017-09-22 遵义医学院附属医院 A kind of long bone osteotomy device
CN208598589U (en) * 2018-03-22 2019-03-15 中国人民解放军总医院 A kind of distal end fixed fae body femur holder

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