CN106618719A - Hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of thigh bone from rear side - Google Patents
Hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of thigh bone from rear side Download PDFInfo
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- CN106618719A CN106618719A CN201710019272.XA CN201710019272A CN106618719A CN 106618719 A CN106618719 A CN 106618719A CN 201710019272 A CN201710019272 A CN 201710019272A CN 106618719 A CN106618719 A CN 106618719A
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- reset
- fixator
- circular arc
- guide pin
- lag screw
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8897—Guide wires or guide pins
-
- 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
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/171—Guides or aligning means for drills, mills, pins or wires for external fixation
-
- 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
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
-
- 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
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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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
- A61B2017/922—Devices for impaction, impact element
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Neurology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of a thigh bone from a rear side. The hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of the thigh bone from the rear side comprises an arc guide frame, wherein a restoration rack is arranged at one end of the arc guide frame; a combined sleeve which moves along the arc guide frame is arranged at the other end of the arc guide frame; the tail end of the restoration rack is connected with the arc guide frame; a restoration hook is arranged at the front end of the restoration rack; a limiting groove is formed in the restoration rack; the combined sleeve comprises an outer barrel and an inner barrel; the inner barrel moves in the outer barrel coaxially; pointed claws are respectively arranged at an outlet end of the inner barrel and an outlet end of the outer barrel; and when the combined sleeve moves along the arc guide frame, the pointed claws are always pointed to the circle center of the arc guide frame. during surgery, the hollow lag screw guide pin aiming fixator for restoration of lesser trochanter of the thigh bone from the rear side is inserted from the rear side, muscles are pushed away by the front arc-shaped restoration rack, the restoration hook hooks a fracture block of the lesser trochanter and drags to the rear lower direction, sliding of the aiming fixator can be avoided by the square limiting groove, and therefore, the restoration effect is direct and reliable.
Description
Technical field
The present invention relates to bone surgery apparatus field, is related to a kind of guide pin sight, and in particular to a kind of Jing rear sides femur
Little tuberosity reset hollow lag screw guide pin aims at fixator.
Background technology
Intertrochanter fracture of femur is the common fracture of Orthopedic Clinical, the reset of little tuberosity sclerite and fixation it is bad caused by
The disappearance of the fracture collateral point of stress, be intertrochanter fracture of femur Unstable internal fixation (cause screw loosening to exit, steel plate fractures, again
Fracture, coxa vara deformity etc.) key reason.And because the special anatomical position of the little tuberosity of femur (is located in the rear of femur
Side, is the stop of iliopsoas), little tuberosity sclerite is shifted by the drawing forward upward of iliopsoas and position is deep in art after fracture
In cannot look at the little tuberosity sclerite that appears and reset straight；And little tuberosity is located at the rear inner side of near end of thighbone, therefore sclerite
Screw fixed-direction after reset, optimal should be from inner side after the front outside sensing of near end of thighbone.
Current clinical operation is mostly to use hamulus of hamate bone to reset from front, but reset effect is poor and cannot effectively fix
Little tuberosity；Additionally, existing little tuberosity homing device, same being previously inserted near end of thighbone in operation, to utilizing it
Tip hooks and resets little tuberosity sclerite, but the same reset effect of the equipment is not good and cannot insert by preferable direction and leads
Pin and fixing screws, not only because excessive drawing to soft tissue causes the damage of front and inner side tissue, and guide pin to pierce
Due to a lack of stopping, easily cause the iatrogenic injury of the rear structures such as sciatic nerve, therefore damage of the operation to surrounding tissue
Greatly.
Still lack at present near end of thighbone rear side insertion, reset and can be while little the special of tuberosity sclerite of fixation of pressurizeing sets
It is standby.
The content of the invention
It is an object of the invention to provide a kind of simple structure, it is esy to use, safe and reliable, operation when from rear insertion,
The little tuberosity reset hollow lag screw guide pin of Jing rear side femurs for being prevented effectively from the damage to surrounding tissue aims at fixator.
To achieve these goals, the technical scheme is that：There is provided a kind of little tuberosity reset of Jing rear sides femur hollow
Lag screw guide pin aims at fixator, wherein, including circular arc leading truck, one end of the circular arc leading truck is provided with reset frame, circle
The other end of arc leading truck is provided with the combined sleeve along the movement of circular arc leading truck；The end of the reset frame and circular arc leading truck
Connection, the front end of reset frame is provided with reseting hook, stopper slot is opened up on reset frame；The combined sleeve includes outer tube and inner core, interior
Cylinder is coaxially active in outer tube, and the port of export of inner core and outer tube is equipped with point pawls；Combined sleeve is moved along circular arc leading truck
During point pawls point to the center of circle of circular arc leading truck all the time.
Further, the axial hole for placing Kirschner wire is provided with the inner core.
Further, the fore-end of the reset frame is bent to form arc release member.
Further, the end of the reset frame is connected by fixed block with circular arc leading truck, and fixed block is provided with and is available for
Reset frame inserts fixed groove, and reset frame can be moved along groove, and different directions regulation gram can be waited to inside and outside up and down with this
The outlet of family name's needle tip is positioned at the position of little tuberosity.
Further, the combined sleeve is connected by slide block with circular arc leading truck, and upper end of slide block is provided with and is available for circular arc to lead
To mounting into fixed groove, circular arc leading truck can be moved along groove；Slide block lower end is provided with and is available for combined sleeve to insert fixation
Sleeve groove, combined sleeve can move along sleeve groove.
Further, the circular arc leading truck is provided with scale.
Further, the sleeve-sliders upper end is provided with regulation locking device so as to which sleeve-sliders are fixed on circular arc guiding
On frame.
Further, it is provided with regulation locking device below the sleeve-sliders so as to which combined sleeve is fixed on sleeve cunning
On block.
Further, the fixed block is provided with regulation locking device so as to which reset frame is fixed on fixed block.
Further, the stopper slot is located between reseting hook and fixed block, and near reseting hook；Reseting hook is located at and resets
The inner side of frame front end.
The little tuberosity reset hollow lag screw guide pin aiming fixator of femur has following beneficial effect on rear side of Jing of the present invention
Really：
1st, the little tuberosity reset hollow lag screw guide pin of Jing of the present invention rear side femur aims at that fixer structure is simple, user
Just precisely pressurization is fixed on the basis of, safe and reliable, accurate reset, maintenance fracture block reset.
2nd, the little tuberosity reset hollow lag screw guide pin of Jing rear side femurs is aimed at when fixator is performed the operation from rear insertion, is used
Tip arc stripper push open muscle, reseting hook hook little tuberosity sclerite to the back lower place drawing, can plus square stopper slot
The slip of the aiming fixator is avoided, reset effect is directly reliable.
3rd, draw close reseting fracture block using between outer layer sleeve point pawls and reseting hook, it is convenient and swift effectively；
4th, after resetting, outer layer sleeve can be locked by regulation locking device, you can stablize little tuberosity sclerite；
5th, due to the stop of front reseting hook, Kirschner wire will not be long and cause Accessory injury, while easily measure needed for spiral shell
The length of nail；
6th, during mobile combined sleeve, combined sleeve points to all the time the center of circle (little tuberosity fracture) of circular arc leading truck,
It is precisely reliable；
7th, outer tube is fixed and maintained after fracture block reset, and Jing inner cores pierce Kirschner wire, pierce core drill, depth measurement and are screwed into screw
Implement in outer tube Deng operation, be prevented effectively from the damage to surrounding tissue.
Description of the drawings
Fig. 1 is the structural representation that the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur of the present invention aims at fixator
Figure；
In figure：1st, circular arc leading truck；2nd, clamping screw is adjusted；3rd, combined sleeve；4th, point pawls；5th, reseting hook；6th, stopper slot；
7th, reset frame；8th, fixed block；9th, clamping screw is adjusted；10th, sleeve groove；11st, clamping screw is adjusted；12nd, sleeve-sliders；13rd, arc
Shape release member.
Specific embodiment
In order to describe the skill that the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur of the present invention aims at fixator in detail
Art content, structural feature, below in conjunction with embodiment and accompanying drawing is coordinated to be described further.
As shown in figure 1, the little tuberosity reset hollow lag screw guide pin of femur aims at fixator, including circle on rear side of Jing of the present invention
Arc leading truck 1, one end of the circular arc leading truck 1 is provided with reset frame 7, the other end of circular arc leading truck 1 and is provided with along circular arc and leads
To the combined sleeve 3 of frame movement, concrete structure is as follows：
The end of the reset frame 7 is connected by fixed block 8 with circular arc leading truck 1, the fore-end bent of reset frame 7
Camber release member 13, and leading inside is provided with reseting hook 5, arc release member 13 is positioned at the front of reseting hook 5 and in opposite direction
(reseting hook 5 is located at reset frame inner side, and arc release member 13 is located at reset frame outside)；Square stopper slot 6 is opened up on reset frame 7,
Stopper slot 6 is located between reseting hook 5 and fixed block 8, and near reseting hook 5.Fixed block 8 is provided with and is available for reset frame 7 to insert admittedly
Fixed groove, reset frame can be moved along groove, after movement, by regulation locking device so as to which reset frame 7 is fixed on fixed block
On, regulation locking device is regulation clamping screw 9.
The combined sleeve 3 includes outer tube and inner core, and inner core is coaxially active in outer tube, and the port of export of inner core and outer tube is equal
It is provided with point pawls 4；Combined sleeve 3 points to all the time the center of circle of circular arc leading truck along point pawls during the movement of circular arc leading truck.It is interior
The axial hole for placing Kirschner wire is provided with cylinder.The inner core is at least two-layer (middle cylinder and little cylinder), the axial hole of the little cylinder of innermost layer
Fixation Kel's needle after matching with Kirschner wire external diameter, the internal diameter of middle cylinder is matched with the external diameter of core drill, and the guiding for playing core drill is made
With, it is ensured that the direction of core drill does not offset all the time, reaches the purpose that height is precisely pierced.
The combined sleeve 3 is connected by sleeve-sliders 12 with circular arc leading truck 1, and the upper end of slide block 12 is provided with and is available for circular arc to lead
To mounting into fixed groove, circular arc leading truck can be moved along groove, after movement, by regulation locking device so as to sleeve
Slide block is fixed on circular arc leading truck, and regulation locking device is regulation clamping screw 2.The lower end of slide block 12 is provided with and is available for combined sleeve
Fixed sleeve groove 10 is inserted, combined sleeve can be moved along sleeve groove 10, after movement, by regulation locking device so as to group
Trap cylinder is fixed on sleeve-sliders, and regulation locking device is regulation clamping screw 11.
The circular arc leading truck 1 is provided with scale.
The use process of the little tuberosity reset hollow lag screw guide pin aiming fixator of femur is as follows on rear side of Jing of the present invention：
From rear insertion when the 1st, performing the operation, push muscle, reseting hook open with the arc release member at tip and hook little tuberosity sclerite
To back lower place Retracting repositioning sclerite；
2nd, reseting fracture block is drawn close using between outer layer sleeve point pawls and reseting hook；
3rd, after resetting, outer layer sleeve can be locked by adjusting clamping screw；
5th, outer tube is fixed and maintained after fracture block reset, inner core is inserted in outer tube and the central axial aperture of Jing inner cores is pierced
Kirschner wire, Kirschner wire passes and little tuberosity is penetrated after inner core and femur；Due to the stop of front reseting hook and stopper slot, Kirschner wire is not
Understand long and cause Accessory injury.
6th, keep outer tube to fix and maintain fracture block reset, first take out the little cylinder of innermost layer, along Kirschner wire direction, by core drill edge
Cylinder internal diameter is pierced in, and after core drill is inserted, then middle cylinder is taken out.
7th, measure required screw length, be screwed into the operation such as screw enforcement in outer tube.
Above disclosed is only presently preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, therefore the equivalent variations made according to the claims in the present invention, still fall within the scope that the present invention is covered.
Claims (10)
1. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur aims at fixator, it is characterised in that：It is oriented to including circular arc
Frame, one end of the circular arc leading truck is provided with reset frame, the other end of circular arc leading truck and is provided with along the movement of circular arc leading truck
Combined sleeve；The end of the reset frame is connected with circular arc leading truck, and the front end of reset frame is provided with reseting hook, opens up on reset frame
Stopper slot；The combined sleeve includes outer tube and inner core, and inner core is coaxially active in outer tube, and the port of export of inner core and outer tube is all provided with
There are point pawls；Combined sleeve points to all the time the center of circle of circular arc leading truck along point pawls during the movement of circular arc leading truck.
2. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The axial hole for placing Kirschner wire is provided with the inner core.
3. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The fore-end of the reset frame is bent to form arc release member.
4. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The end of the reset frame is connected by fixed block with circular arc leading truck, and fixed block is provided with and is available for reset frame to insert admittedly
Fixed groove, reset frame can be moved along groove.
5. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The combined sleeve is connected by slide block with circular arc leading truck, and upper end of slide block is provided with and is available for circular arc leading truck to insert fixation
Groove, circular arc leading truck can move along groove；Slide block lower end is provided with and is available for combined sleeve to insert fixed sleeve groove, combination
Sleeve can be moved along sleeve groove.
6. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The circular arc leading truck is provided with scale.
7. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The sleeve-sliders upper end is provided with regulation locking device so as to which sleeve-sliders are fixed on circular arc leading truck.
8. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：Regulation locking device is provided with below the sleeve-sliders so as to which combined sleeve is fixed on sleeve-sliders.
9. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The fixed block is provided with regulation locking device so as to which reset frame is fixed on fixed block.
10. the little tuberosity reset hollow lag screw guide pin of Jing rear sides femur as claimed in claim 1 aims at fixator, its feature
It is：The stopper slot is located between reseting hook and fixed block, and near reseting hook；Reseting hook is located at the interior of reset frame front end
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019272.XA CN106618719B (en) | 2017-01-11 | 2017-01-11 | Hollow lag screw guide pin aiming fixer for reduction through posterior femoral lesser tuberosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019272.XA CN106618719B (en) | 2017-01-11 | 2017-01-11 | Hollow lag screw guide pin aiming fixer for reduction through posterior femoral lesser tuberosity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106618719A true CN106618719A (en) | 2017-05-10 |
| CN106618719B CN106618719B (en) | 2023-04-18 |
Family
ID=58843653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710019272.XA Active CN106618719B (en) | 2017-01-11 | 2017-01-11 | Hollow lag screw guide pin aiming fixer for reduction through posterior femoral lesser tuberosity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106618719B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730756A (en) * | 2018-12-24 | 2019-05-10 | 宁波市第六医院 | Fracture removing aims at locator |
| CN112089475A (en) * | 2020-08-28 | 2020-12-18 | 中南大学湘雅医院 | Femoral head marrow external fixation type drilling support |
| CN112168279A (en) * | 2020-08-28 | 2021-01-05 | 中南大学湘雅医院 | Intramedullary fixed drilling support for femoral head |
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Cited By (5)
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| CN109730756A (en) * | 2018-12-24 | 2019-05-10 | 宁波市第六医院 | Fracture removing aims at locator |
| CN112089475A (en) * | 2020-08-28 | 2020-12-18 | 中南大学湘雅医院 | Femoral head marrow external fixation type drilling support |
| CN112168279A (en) * | 2020-08-28 | 2021-01-05 | 中南大学湘雅医院 | Intramedullary fixed drilling support for femoral head |
| CN112089475B (en) * | 2020-08-28 | 2021-07-13 | 中南大学湘雅医院 | Femoral head marrow external fixation type drilling support |
| CN112168279B (en) * | 2020-08-28 | 2021-07-13 | 中南大学湘雅医院 | Intramedullary fixed drilling support for femoral head |
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