CN103494637A - Clipping and locking bone fracture plate - Google Patents
Clipping and locking bone fracture plate Download PDFInfo
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- CN103494637A CN103494637A CN201310389284.3A CN201310389284A CN103494637A CN 103494637 A CN103494637 A CN 103494637A CN 201310389284 A CN201310389284 A CN 201310389284A CN 103494637 A CN103494637 A CN 103494637A
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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
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/82—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage
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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
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- Orthopedic Medicine & Surgery (AREA)
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Abstract
A clipping and locking bone fracture plate comprises a near-section plate corresponding to a fracture near section and a far-section plate corresponding to a fracture far section, and the connection position of the near-section plate and the far-section plate is in a four-degree arc shape to adapt to the physiological anterior arch with the femur shaft protruding forwards in an arc shape. Screw holes are formed in the front face of the far-section plate, and locking screws penetrate through the cortexes on the two sides of the thighbone through the screw holes to fix the fracture far section. Transverse grooves are formed in the front face of the near-section plate, and the cross sections of the grooves are in a super-semicircular shape. Clipping hooks are formed by connecting linear sections and bending hooks, the linear sections penetrate through the grooves, the free ends of the linear sections are provided with threads and connected with nuts, the nuts abut against the side face of the near-section plate, the bending hooks clip the fracture near section in a semi-ring state, and the tail ends of the bending hooks stride over the center line of the femur shaft and clamp the femur shaft.
Description
Technical field
The invention belongs to a kind of inner fixing device that is applied to the artificial hip joint femoral Periprosthetic fracture, be particularly useful for Vancouver B1 type fracture.
Background technology
Replacement of Hip Joint efficiently solves old people's hip joint illness in late period, but one of its common complication---Periprosthetic Fracture After Total Hip Arthroplasty is more and more common, for the Vancouver classification method of Periprosthetic Fracture After Total Hip Arthroplasty, is to apply in the world maximum sorting techniques at present.It is divided into A, B, C three types according to fracture and the position relationship of femoral prosthesis by fracture, and wherein A type and C type have the therapeutic scheme of standard, reliable results.Vancouver Type B fracture refers to around the shank that is positioned at femoral prosthesis or the fracture of shaft of femur at most advanced and sophisticated contiguous position.Situation according to prosthetic loosening and bone loss is divided again 3 types, all there are prosthetic loosening in Vancouver B2, B3 type, wherein Vancouver B3 type remains the situation at bone loss, Vancouver B2, B3 type fracture are processed without obviously having different views, and application lengthens prosthese and ties up and can obtain good solution in conjunction with the multiply wire rope.Vancouver B1 type fracture is usually located at the most advanced and sophisticated and contiguous level of femoral stem, is horizontal shape, short oblique or pulverizing shape, and becoming flexible does not appear in the femoral prosthesis of implantation, processes the most thorny.Because the nearly section of femoral bone cavitas medullaris has the prosthesis handle filling to be protected, the femoral stem tip,, suffers very easily at this, to form and fracture after external force so the most advanced and sophisticated position of femoral stem becomes both mechanics separations for filling part not with far.Therefore, Vancouver B1 type fracture incidence rate in all Periprosthetic Fracture After Total Hip Arthroplasties is the highest.Due to the prosthese non-loosening, firm with synosteosis, be difficult to take out.
Due to existence and the senile osteoporosis of prosthese in the nearly section of fracture pulp cavity, Vancouver-B1 type fracture is processed quite thorny clinically, there is no at present the therapeutic scheme of standard.Internal fixation method is a lot, as fixing in used in steel plate, screw, uses in fracture with memory alloy embrace fixator and fixes, and the column cortical bone supports in conjunction with steel wire wirerope cerclage.Clinical practice is used result poor, general in constant intensity inadequate, the patient can't early ambulation, refracture and the ratio of performing the operation again are very high.
1. steel plate screw method: because have prosthese to exist in the nearly section of fracture pulp cavity, screw can only be fixed a side cortex, and the constant intensity deficiency can improve its constant intensity if the associating wirerope is tied up, but still have higher mortality and complex operation.
2. fracture with memory alloy embrace fixator method: the range of exposure of 1. fracturing is wider, and operation wound is larger; 2. the constant intensity of memorial alloy does not reach the fixing required intensity of Fracture of femur; 3. the periosteum stripping scope is wide, easily causes nonunion; 4. the anatomic form of fracture with memory alloy embrace fixator and fracture not necessarily mates.
3. the column cortical bone supports in conjunction with steel wire wirerope cerclage: the constant intensity deficiency, bed rest time is longer.
Summary of the invention
For overcoming prior art constant intensity deficiency, operating difficulties, the large shortcoming of tissue injury, the present invention proposes a kind of mechanical fixation principle that adopts the far away section nearly section of locking associating to encircle, nearly section is encircled the method that adopts combination type hook plate padlock, the prosthese that can obtain in enough interior constant intensities, the nearly section of fracture pulp cavity exists fixing without prejudice, can reduce again the periosteum stripping scope, alleviate the blade plate of operation wound, meet the requirement of patient's out-of-bed activity.
Technical scheme of the present invention is:
Encircle locking bone fracture plate, it is characterized in that: comprise that the junction of described near section plate and section plate far away is the physiology anterior arch that 4 ° of arcs protrude to front arc to adapt to femoral shaft corresponding near section plate of the nearly section of fracture with corresponding to far away section plate of fracture section far away;
The front of described far away section plate is provided with screw hole, and lock screw runs through femur both sides cortex by described screw hole the section far away of fracturing is fixed;
The front of described near section plate has horizontal groove, and the cross section of described groove is super semicircle; Clip hook connects crotch by straightway and forms, described straightway is located in described groove, the free end of described straightway is provided with screw thread and connects a nut, described nut is resisted against the side of described near section plate, described crotch is encircled the nearly section of fracture with the semi-ring form, and the end of described crotch is crossed over the femoral shaft center line and blocked the backbone.
Further, adjacent clip hook oppositely arranges.
Further, described screw hole departs from described Duan Ban far away center.
Preferably, described clip hook has 7 pieces, and described screw hole has 4.
Advantage of the present invention is
1, interior constant intensity is high;
2, simple to operate;
The individual variation that 3, can adapt to the femur anatomic form;
4, reduce the periosteum stripping scope, alleviate operation wound.
The accompanying drawing explanation
Fig. 1 a is the side view of using state of the present invention
Fig. 1 b is the front view of using state of the present invention
Fig. 1 c is the side view of using state of the present invention, a side relative with Fig. 1 a
Fig. 2 a is assembling schematic diagram of the present invention
Fig. 2 b is the another side of assembling schematic diagram of the present invention
Fig. 2 c is the schematic diagram after assembling of the present invention completes
Fig. 2 d is the opposite side of the schematic diagram after assembling of the present invention completes
Fig. 3 is the generalized section of clip hook locking.
Fig. 4 is the generalized section of lock screw locking.
The specific embodiment
With reference to accompanying drawing:
Encircle locking bone fracture plate 1, it is characterized in that: comprise that the junction of described near section plate 11 and section plate 12 far away is the physiology anterior arch that 4 ° of arcs protrude to front arc to adapt to femoral shaft corresponding near section plate 11 of the nearly section of fracture with corresponding to far away section plate 12 of fracture section far away;
The front of described far away section plate 12 is provided with screw hole 14, and lock screw 3 runs through femur both sides cortex by described screw hole 14 section far away of fracturing is fixed;
The front of described near section plate 11 has horizontal groove 13, and the cross section of described groove 13 is super semicircle; Clip hook 2 connects crotch 22 by straightway 21 and forms, described straightway 21 is located in described groove 13, the free end 211 of described straightway 21 is provided with screw thread and connects a nut 4, described nut 4 is resisted against the side of described near section plate 11, described crotch 22 is encircled the nearly section of fracture with the semi-ring form, and the end of described crotch 22 is crossed over the femoral shaft center line and blocked the backbone.
Adjacent clip hook oppositely arranges.Described screw hole 14 departs from described far away section Ban12 center.
Preferably, described clip hook 2 has 7 pieces, and described screw hole 14 has 4.
The present invention includes a zone line and be the blade plate of 4 ° of arcs to adapt to the physiology anterior arch of femoral shaft to front arc, its distally arranges 4 screw hole that are equally spaced, screw hole is partial center and distributes, with 4 pieces of lock screw, match, running through femur both sides cortex is fixed the section far away of fracturing, nearside arranges the horizontal groove that 7 roads are parallel to each other and equidistantly arrange, and it is super semicircle that the cross section shapes of groove is, and partially lists in the upper surface of blade plate.7 pieces of clip hooks can pass through tunnel, and appear in the blade plate upper surface portion, but can not deviate to escape from the blade plate upper surface.Clip hook is designed to " umbrella handle " shape, with the groove of walking crosswise of blade plate upper surface, matches, and an end is encircled the nearly section of fracture with the semi-ring form, inserts the groove of walking crosswise of blade plate, and the other end has screw thread, can take out and hug hook, uses nut check.Because of the femoral shaft diameter of varying level variant, by measure trench bottom to the femoral shaft of respective horizontal to lateral extent, select the clip hook (height of clip hook refers to the vertical dimension of its cross bar and arc tail end) of proper height, the arc tail end design of clip hook upwarps slightly, can cross over the femoral shaft center line and block the backbone, 7 pieces of clip hooks are the crossed loops holding-solid nearly section of surely fracturing mutually successively, the interior prosthesis handle of nearly section pulp cavity of not fractured affects, if the latch hook of recent side can't mate with femur, can use wirerope instead and tie up fixing through groove.The blade plate upper face center has the baby elephant nostril of 2 spacing 15mm, is convenient to cross fixedly bone-grafting material of steel wire bundle.
The artificial hip joint femoral shaft length of Primary replacement is comparatively constant, generally in 12～15cm scope, Vancouver B1 type fracture is usually located at the most advanced and sophisticated and contiguous level of femoral stem, therefore the blade plate Design of length is easily determined, can prepare the blade plate of different length for you to choose, groove on it and the number of screw hole also can correspondingly increase, and the height of clip hook increases progressively with the differential of 1mm, for selection of clinical.
Orientation of the present invention statement adopts the medically direction statement of human body.Take cardia as mark, is " nearside " near the heart side, away from the heart side, is " distally ".Take the human body median line as mark, minute left and right sides.It is " inboard " that the same side be take near median line, away from median line, is " outside ".Health veutro direction is " front side ", and health dorsal part direction is " rear side ".Blade plate is " upper surface " away from the surface of bone side, near the surface of bone side, is " lower surface ".
Technical conceive of the present invention is: the femoral prosthesis handle Length Ratio of artificial hip joint Primary replacement is more constant, the position that Vancouver B1 type fracture occurs relatively fixing (femoral stem is most advanced and sophisticated contiguous), and the cross section of femoral shaft approaches circular, in the nearly section of Fracture of femur pulp cavity, there is prosthesis handle to exist, can't run through fixing with screw, the mode that adopts intersection to encircle locking can obtain good constant intensity.Fracture of femur section far away still adopts traditional locking bone fracture plate, screw methods of internal fixation.By adjusting concrete size, the clip hook number of blade plate, can make the present invention be applicable to different crowds and femur form, form " serial blade plate ".
Claims (4)
1. encircle locking bone fracture plate, it is characterized in that: comprise that the junction of described near section plate and section plate far away is the physiology anterior arch that 4 ° of arcs protrude to front arc to adapt to femoral shaft corresponding near section plate of the nearly section of fracture with corresponding to far away section plate of fracture section far away;
The front of described far away section plate is provided with screw hole, and lock screw runs through femur both sides cortex by described screw hole the section far away of fracturing is fixed;
The front of described near section plate has horizontal groove, and the cross section of described groove is super semicircle; Clip hook connects crotch by straightway and forms, described straightway is located in described groove, the free end of described straightway is provided with screw thread and connects a nut, described nut is resisted against the side of described near section plate, described crotch is encircled the nearly section of fracture with the semi-ring form, and the end of described crotch is crossed over the femoral shaft center line and blocked the backbone.
2. blade plate as claimed in claim 1, it is characterized in that: adjacent clip hook oppositely arranges.
3. blade plate as claimed in claim 1 or 2, it is characterized in that: described screw hole departs from described Duan Ban far away center.
4. blade plate as claimed in claim 3, it is characterized in that: described clip hook has 7 pieces, and described screw hole has 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310389284.3A CN103494637B (en) | 2013-08-30 | 2013-08-30 | Encircle locking bone fracture plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310389284.3A CN103494637B (en) | 2013-08-30 | 2013-08-30 | Encircle locking bone fracture plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103494637A true CN103494637A (en) | 2014-01-08 |
| CN103494637B CN103494637B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310389284.3A Active CN103494637B (en) | 2013-08-30 | 2013-08-30 | Encircle locking bone fracture plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758038A (en) * | 2015-04-08 | 2015-07-08 | 赵全明 | Assembled type memory alloy bone fracture fixation plate |
| CN104783882A (en) * | 2015-04-08 | 2015-07-22 | 赵全明 | Assembled type memory alloy bone plate |
| CN106937882A (en) * | 2017-04-21 | 2017-07-11 | 董巍 | A kind of bone plate and auxiliary locator with titanium cable |
| CN108042193A (en) * | 2018-01-25 | 2018-05-18 | 宁波市第六医院 | Femur bilateral fixing steel plate |
| CN108186098A (en) * | 2018-01-25 | 2018-06-22 | 宁波市第六医院 | A kind of femur bilateral fixing steel plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317822Y (en) * | 1997-12-15 | 1999-05-12 | 兰州记忆合金有限公司 | Split device for setting of fracture |
| US20060276896A1 (en) * | 2005-06-02 | 2006-12-07 | Medicinelodge, Inc. | Bone implants with integrated line locks |
| CN102100579A (en) * | 2011-04-01 | 2011-06-22 | 苏州奥芮济医疗科技有限公司 | In vivo degradable and absorbable metal encirclement device for bone fracture internal fixation |
| CN102415913A (en) * | 2011-06-09 | 2012-04-18 | 马丽昕 | Femoral shaft fracture internally fixing instrument |
| CN102940522A (en) * | 2012-11-07 | 2013-02-27 | 江苏百得医疗器械有限公司 | Encircling bone fracture plate |
-
2013
- 2013-08-30 CN CN201310389284.3A patent/CN103494637B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317822Y (en) * | 1997-12-15 | 1999-05-12 | 兰州记忆合金有限公司 | Split device for setting of fracture |
| US20060276896A1 (en) * | 2005-06-02 | 2006-12-07 | Medicinelodge, Inc. | Bone implants with integrated line locks |
| CN102100579A (en) * | 2011-04-01 | 2011-06-22 | 苏州奥芮济医疗科技有限公司 | In vivo degradable and absorbable metal encirclement device for bone fracture internal fixation |
| CN102415913A (en) * | 2011-06-09 | 2012-04-18 | 马丽昕 | Femoral shaft fracture internally fixing instrument |
| CN102940522A (en) * | 2012-11-07 | 2013-02-27 | 江苏百得医疗器械有限公司 | Encircling bone fracture plate |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758038A (en) * | 2015-04-08 | 2015-07-08 | 赵全明 | Assembled type memory alloy bone fracture fixation plate |
| CN104783882A (en) * | 2015-04-08 | 2015-07-22 | 赵全明 | Assembled type memory alloy bone plate |
| CN104758038B (en) * | 2015-04-08 | 2017-09-26 | 赵全明 | A kind of assembly type memory alloy plate osteosynthesis |
| CN106937882A (en) * | 2017-04-21 | 2017-07-11 | 董巍 | A kind of bone plate and auxiliary locator with titanium cable |
| CN106937882B (en) * | 2017-04-21 | 2023-11-24 | 廊坊市人民医院 | Bone fracture plate with titanium cable and auxiliary positioning device |
| CN108042193A (en) * | 2018-01-25 | 2018-05-18 | 宁波市第六医院 | Femur bilateral fixing steel plate |
| CN108186098A (en) * | 2018-01-25 | 2018-06-22 | 宁波市第六医院 | A kind of femur bilateral fixing steel plate |
| CN108186098B (en) * | 2018-01-25 | 2024-03-15 | 宁波市第六医院 | Femur double-side positioning steel plate |
| CN108042193B (en) * | 2018-01-25 | 2024-03-15 | 宁波市第六医院 | Femur double-side positioning steel plate |
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| Publication number | Publication date |
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| CN103494637B (en) | 2015-09-02 |
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