CN109363761A - A kind of fracture of lesser trochanter replacement and fixation guider - Google Patents
A kind of fracture of lesser trochanter replacement and fixation guider Download PDFInfo
- Publication number
- CN109363761A CN109363761A CN201811503117.6A CN201811503117A CN109363761A CN 109363761 A CN109363761 A CN 109363761A CN 201811503117 A CN201811503117 A CN 201811503117A CN 109363761 A CN109363761 A CN 109363761A
- Authority
- CN
- China
- Prior art keywords
- claw
- central part
- lesser trochanter
- connecting portion
- guide device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- A61B17/8866—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices for gripping or pushing bones, e.g. approximators
-
- 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
Abstract
The present invention relates to a kind of fracture of lesser trochanter replacement and fixation guiders, including the two pawl drag hooks for grasping lesser trochanter sclerite；Two pawl drag hooks include the first central part, two claws, first connecting portion；Mobile device；Mobile device includes the second central part, second connecting portion, a claw；Screw rod；Hollow guide device；Inside hollow guide device and both ends are sky, and outer wall is provided with screw thread, and screw hole is provided in a claw, and hollow guide device screws in the screw hole of a claw, after Kirschner wire is pierced by after penetrating from one end of hollow guide device from its other end, at the central indentation of two claws.The present invention is because less using component, and the reason of without precise processing technology, so at low cost；Connection relationship design between structure of the invention is rationally, easy to use；To the replacement and fixation of lesser trochanter sclerite suitable for intertrochanteric fracture.
Description
Technical field
The present invention relates to a kind of medical instrument more particularly to a kind of fracture of lesser trochanter replacement and fixation guiders.
Background technique
In clinical practice, intertrochanter fracture of femur be the middle-aged and the old it is most common one of Hip Fracture, in west quilt again
Referred to as the elderly's last time is fractured.Intertrochanter fracture of femur is fractured with lesser trochanter, i.e., has III type of defect on the inside of near end of thighbone
Familial combined hyperlipidemia fracture, lesser trochanter displacement person deal with just relative complex.It is pressure bone trabecula on the outside of lesser trochanter, remains normal
Collodiaphyseal angle, lesser trochanter fracture good replacement and fixation can obviously increase fracture end stability, to later period intertrochanteric fracture healing,
Coxa vara is avoided, the lower limb line of force is maintained, maintains the normal physiological function of hip joint particularly important.
Lesser trochanter anatomical position inside between tuberosity, notch tradition is in anterolateral thigh, art in intertrochanter fracture of femur art
Lesser trochanter exposes and is fixed with certain difficulty.To good fixation, it is necessary to accurately bore fixing screws from access point
To lesser trochanter and cortex is penetrated, position is pierced by and deviation occurs, it is most likely that damages the blood vessel adjoined, nerve, causes patient neural
The damage of function or big bleeding threat to life.
There are two types of the processing substantially fractured at present to lesser trochanter, one is because of difficult exposure in art, fractures to lesser trochanter
It does not deal with, this accounts for sizable ratio in clinic；Another kind is by patient's experience, from outside appropriate location pedicle screw.
One-time-reach-place is difficult to ensure only according to patient's experience, and inevitably will appear drill bit goes out point deviation, and needs repeated multiple times brill
Enter can be only achieved ideal point out, the consequence repeatedly pierced, which is just difficult to avoid that, occurs the fragmentation of lesser trochanter bone block, becomes operation more
Difficulty certainly will extend operating time if there is neurovascular damage.It is unfavorable for contracting instead to fix lesser trochanter sclerite
Short operating time reduces bleeding and complication, increases the risk of postoperative infection, aggravates the peri-operation period risk of patient.
For above-mentioned clinical problem, the purpose of the present invention is to provide a kind of lesser trochanter reduction of the fracture guiding fixing device,
The installation cost is low, and design is rationally, easy to use, to the replacement and fixation of lesser trochanter sclerite suitable for intertrochanteric fracture.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provides a kind of fracture of lesser trochanter replacement and fixation and leads
To device.
The purpose of the present invention is achieved through the following technical solutions:
A kind of fracture of lesser trochanter replacement and fixation guider, comprising:
For grasping two pawl drag hooks of lesser trochanter sclerite；Two pawl drag hooks include the first central part, and one end of the first central part is
Two claws being upturned, the other end of the first central part are the first connecting portion to raise upward, and the top of the first central part is set
It is equipped with sliding slot, two claw tops are deviated to first connecting portion；
Mobile device；Mobile device includes the second central part, and one end of the second central part is the second connecting portion to raise upward, the
The other end of two central parts is the claw being upturned, and the bottom of the second central part is provided with protrusion bar, and protrusion bar is in sliding slot
Interior sliding, a claw top are deviated to two claws；
Screw rod；It is provided with screw hole in first connecting portion, pushes against second connecting portion, screw rod after the screw hole of screw rod screw-in first connecting portion
Mobile device is pushed to the claw of two pawl drag hooks；
Hollow guide device；Inside hollow guide device and both ends are sky, and outer wall is provided with screw thread, is provided with screw hole in a claw,
Hollow guide device screws in the screw hole of a claw, after Kirschner wire is pierced by after penetrating from one end of hollow guide device from its other end,
At the central indentation of two claws.
Specifically, hollow protector is provided among hollow guide device, Kirschner wire passes through from the center of protector.
Preferably, guider is provided with close to one end of two claws for making whole device be fixed on multiple points on femur
Thorn.
The invention has the following advantages that
Because less using component, and the reason of without precise processing technology, so at low cost；Connection between structure of the invention is closed
System's design is rationally, easy to use；To the replacement and fixation of lesser trochanter sclerite suitable for intertrochanteric fracture.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention.
Fig. 2 is cross-sectional view of the invention.
In figure: two pawl drag hook of 1-；Two claw of 11-；The first central part of 12-；13- first connecting portion；14- sliding slot；2- is mobile
Device；Mono- claw of 21-；The second central part of 22-；23- second connecting portion；3- screw rod；4- hollow guide device.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
Embodiment 1, as depicted in figs. 1 and 2,
A kind of fracture of lesser trochanter replacement and fixation guider, comprising:
For grasping two pawl drag hooks 1 of lesser trochanter sclerite；Two pawl drag hooks 1 include the first central part 12, the first central part 12
One end is two claws 11 being upturned, and the other end of the first central part 12 is the first connecting portion 13 to raise upward, in first
The top of center portion 12 is provided with sliding slot 14, and two claws, 11 top is deviated to first connecting portion 13；
Mobile device 2；Mobile device 2 includes the second central part 22, and one end of the second central part 22 is that second to raise upward connects
Socket part 23, the other end of the second central part 22 are the claw 21 being upturned, and the bottom of the second central part 22 is provided with protrusion
Item, protrusion bar are slided in sliding slot 14, and 21 top of a claw is deviated to two claws 11；
Screw rod 3；It is provided with screw hole in first connecting portion 13, pushes against the second connection after the screw hole of the screw-in first connecting portion 13 of screw rod 3
Portion 23, screw rod 3 push mobile device 2 to the claw of two pawl drag hooks 1；
Hollow guide device 4；4 inside of hollow guide device and both ends are sky, and outer wall is provided with screw thread, is provided with spiral shell in a claw 21
Hole, hollow guide device 4 screw in the screw hole of a claw 21, Kirschner wire penetrated from one end of hollow guide device 4 after from its other end
After being pierced by, at the central indentation of two claws 11.
Screw rod is parallel with hollow guide device in the present invention；Mobile device is parallel with two pawl drag hooks.
Embodiment 2
The present embodiment the difference from embodiment 1 is that:
Hollow protector is provided among hollow guide device 4, Kirschner wire passes through from the center of protector.
Embodiment 3, as depicted in figs. 1 and 2:
The present embodiment the difference from embodiment 1 is that:
Guider is provided with close to one end of two claws 11 for making whole device be fixed on multiple spines on femur.
The diameter of hollow guide device 4 is 4.5 millimeters；Multiple spines of guider leading portion can make effectively to grasp bone and consolidate
Determine whole device, it is hollow convenient for guidance Kirschner wire implantation；3.5 millimeters of diameter of the centre suitable for hollow guide device 4 is hollow
Protector, be implanted into Kirschner wire after this hollow guide device 4 can unload, from protector can electric drill be implanted into Kirschner wire, back out hollow lead
To device 4, Hollow electric drill punching installs hollow lag screw, extracts Kirschner wire.
In the use of the present invention, making its anatomical reduction with two pawl drag hooks 1 grasping lesser trochanter sclerite；Gradually tensioning threaded rods 3,
Mobile device 2 is pushed to two claws 11 of two pawl drag hooks 1 by screw rod 3, and a claw 21 can be along sliding slot 14 close to femur, and grasping exists
Sclerite is fixed on femur；Threaded hollow guide device 4 is tightened again and plays fine tuning effect, and guider leading portion is thorn-like, is made
Whole device is fixedly secured on femur；Insertion protector uses electric drill to guarantee accurately to pierce Kirschner wire in hollow guide device 4
It is implanted into Kirschner wire；Backing out fine tuning hollow guide device 4(is preferably cored screw), it can be along from the hole in hollow guide device 4
The punching of Kirschner wire core drill, measures pedicle screw length, installs fixation hollow lag screw, removes device.
Claims (3)
1. a kind of fracture of lesser trochanter replacement and fixation guider characterized by comprising
For grasping two pawl drag hooks of lesser trochanter sclerite；Two pawl drag hooks include the first central part, and one end of the first central part is
Two claws being upturned, the other end of the first central part are the first connecting portion to raise upward, and the top of the first central part is set
It is equipped with sliding slot, two claw tops are deviated to first connecting portion；
Mobile device；Mobile device includes the second central part, and one end of the second central part is the second connecting portion to raise upward, the
The other end of two central parts is the claw being upturned, and the bottom of the second central part is provided with protrusion bar, and protrusion bar is in sliding slot
Interior sliding, a claw top are deviated to two claws；
Screw rod；It is provided with screw hole in first connecting portion, pushes against second connecting portion, screw rod after the screw hole of screw rod screw-in first connecting portion
Mobile device is pushed to the claw of two pawl drag hooks；
Hollow guide device；Inside hollow guide device and both ends are sky, and outer wall is provided with screw thread, is provided with screw hole in a claw,
Hollow guide device screws in the screw hole of a claw, after Kirschner wire is pierced by after penetrating from one end of hollow guide device from its other end,
At the central indentation of two claws.
2. a kind of fracture of lesser trochanter replacement and fixation guider according to claim 1, it is characterised in that: hollow guiding
Hollow protector is provided among device, Kirschner wire passes through from the center of protector.
3. a kind of fracture of lesser trochanter replacement and fixation guider according to claim 1, it is characterised in that: guider leans on
One end of nearly two claw is provided with for making whole device be fixed on multiple spines on femur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503117.6A CN109363761A (en) | 2018-12-10 | 2018-12-10 | A kind of fracture of lesser trochanter replacement and fixation guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811503117.6A CN109363761A (en) | 2018-12-10 | 2018-12-10 | A kind of fracture of lesser trochanter replacement and fixation guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109363761A true CN109363761A (en) | 2019-02-22 |
Family
ID=65372937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811503117.6A Pending CN109363761A (en) | 2018-12-10 | 2018-12-10 | A kind of fracture of lesser trochanter replacement and fixation guider |
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| Country | Link |
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| CN (1) | CN109363761A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109820591A (en) * | 2019-03-13 | 2019-05-31 | 华中科技大学同济医学院附属协和医院 | A kind of reduction of the fracture guiding fixator based on pelvis Minimally Invasive Surgery |
| CN111700723A (en) * | 2020-06-23 | 2020-09-25 | 秦伟光 | A fixed director that resets that is used for fracture usefulness between old person's trochanter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203400194U (en) * | 2013-07-08 | 2014-01-22 | 周军 | Thighbone lesser trochanter reposition fixer with guide device |
| CN205569058U (en) * | 2016-03-29 | 2016-09-14 | 福建康博医疗科技有限公司 | Novel three -jaw bone holding forceps |
| CN105943137A (en) * | 2016-01-11 | 2016-09-21 | 杨春 | Femoral intertrochanteric fracture lesser trochanter resetting guider |
| CN210019613U (en) * | 2018-12-10 | 2020-02-07 | 西安医学院附属宝鸡医院 | Femoral lesser trochanter fracture reduction fixing guider |
-
2018
- 2018-12-10 CN CN201811503117.6A patent/CN109363761A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203400194U (en) * | 2013-07-08 | 2014-01-22 | 周军 | Thighbone lesser trochanter reposition fixer with guide device |
| CN105943137A (en) * | 2016-01-11 | 2016-09-21 | 杨春 | Femoral intertrochanteric fracture lesser trochanter resetting guider |
| CN205569058U (en) * | 2016-03-29 | 2016-09-14 | 福建康博医疗科技有限公司 | Novel three -jaw bone holding forceps |
| CN210019613U (en) * | 2018-12-10 | 2020-02-07 | 西安医学院附属宝鸡医院 | Femoral lesser trochanter fracture reduction fixing guider |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109820591A (en) * | 2019-03-13 | 2019-05-31 | 华中科技大学同济医学院附属协和医院 | A kind of reduction of the fracture guiding fixator based on pelvis Minimally Invasive Surgery |
| CN111700723A (en) * | 2020-06-23 | 2020-09-25 | 秦伟光 | A fixed director that resets that is used for fracture usefulness between old person's trochanter |
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