CN106308915A - Jacking device for restoring collapse fracture block - Google Patents
Jacking device for restoring collapse fracture block Download PDFInfo
- Publication number
- CN106308915A CN106308915A CN201610954950.7A CN201610954950A CN106308915A CN 106308915 A CN106308915 A CN 106308915A CN 201610954950 A CN201610954950 A CN 201610954950A CN 106308915 A CN106308915 A CN 106308915A
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- sleeve
- jacking
- block
- face
- jacking block
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B2017/681—Alignment, compression, or distraction mechanisms
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Neurology (AREA)
- Prostheses (AREA)
Abstract
The invention provides a jacking device for restoring a collapse fracture block and belongs to the technical field of orthopedic medical devices. The jacking device is used for jacking and restoring the collapse fracture block in a tibial plateau joint. According to the technical scheme, a sleeve is made of a metal sheet, jacking blocks are a plurality of identical pentahedrons, the top surface of each jacking block is rectangular, two side surfaces are trapezoid, the other two side surfaces of the jacking block are triangular, midpoints of two trapezoid side surfaces of the top block are connected with the top end edge of the sleeve, and a plurality of jacking blocks are connected around the top end of the sleeve sequentially; a jacking rod is located in a cavity of the sleeve, and the outer diameter of the jacking rod is matched with the diameter of the cavity of the sleeve. The jacking device solves the problem of insufficient jacking area caused by the fact that the tebia collapse area is remarkably larger than the bone tunnel diameter, can remarkably increase the jacking area during jacking and guarantees the jacking effect; meanwhile, the angle of the front end of the jacking device can be changed according to the position and the shape of the fracture block, damage to the collapse position structure due to mutual displacement and diastasis between the fracture blocks is avoided, and shaping recovery can be better realized after surgery.
Description
Technical field
The present invention relates to a kind of in operation in tibial plateau intraarticular collapsed fracture block is carried out osseous tunnel jack-up
The operating theater instruments resetted, belongs to orthopedic medical device technical field.
Background technology
Fracture of the tibial plateau is common intra-articular fracture in clinic, common damaged by high-energy in, adolescence.
Owing to fracture complex shape is changeable, clinical treatment is the most thorny.Treatment for tibial plateau fracture purpose be recover articular surface smooth and
The lower limb line of force, strong fixing sclerite, avoid the occurrence of the long term complications such as postoperative traumatic arthritis, ankylosis.Operation is controlled
The committed step treating fracture of the tibial plateau is the sclerite shifted that resets.Traditional incision resetting technique is to obtain good operation to regard
Wild, it is often necessary to expose knee joint peripheral soft tissue on a large scale.For fracturing outside Schatzker II and type III, there is scholar
Propose to cut fully to expose articular surface lateral meniscus first half；For merging the tibial plateau bone of outside back displacement
Folding, Pires proposes the excision of fibula near-end with outside sclerite after aspect reset.Although these operations can bring just for reset
Profit, but postoperative soft tissue adhesion, infection of incisional wound and nerve injury equivalent risk are greatly improved.The development trend of intra-articular fracture at present
It is that Wicresoft resets, effectively protection fracture surrounding soft tissue.
The maximum problem that Minimally Invasive Surgery method exists at present is that Wicresoft's reset intra-articular fracture can only be led to too far away from bone
Holing in position, folding part, the tunnel formed by boring is arrived and carries out jack-up reset below sclerite, but currently used jack-up
The front end of device is all in the same size with osseous tunnel exit orifice, and fracture subside area often be significantly greater than osseous tunnel exit orifice sectional area, therefore
The problems such as jack-up area is not enough often occur, thus causes jack-up insufficient, have impact on the effect of jack-up.It addition, before jack-up device
End tends not to the position according to sclerite and shape and changes angle, and sclerite may be made to be mutually displaced and depart from,
The consequence causing the portion structure that subsides to destroy, is extremely unfavorable for that postoperative molding recovers.The most currently used jack-up device can not be expired
The requirement of foot Minimally Invasive Surgery, it is quite necessary to improved.
Summary of the invention
The technical problem to be solved is to provide a kind of jack-up device for the collapsed fracture block that resets, this jack-up
Device can carry out abundant jack-up to the sclerite subsided, it is ensured that subside position can full recovery in situ, and make all fracture
Block can arrive reset position.
The technical scheme solving above-mentioned technical problem is:
A kind of jack-up device for the collapsed fracture block that resets, it includes sleeve, jacking block, push rod, and sleeve is that sheet metal is constituted, set
The length of cylinder is more than the length of osseous tunnel, and jacking block is multiple identical pentahedrons, and the end face of each jacking block is rectangle, jacking block
Two sides are trapezoidal, and the long limit of two trapezoidal sides is circular arc, and the radian of circular arc matches with its circumference radian, ladder
The length of the minor face of shape side is equal with the length of the minor face of rectangle end face, and respectively with two minor faces pair of rectangle end face
Should connect, the long limit of circular arc of two trapezoidal sides is connected, and two other side of jacking block is respectively triangle, triangle side
Face is made up of the side of rectangle end face and the side of two trapezoidal sides, in the long limit of circular arc of two trapezoidal sides of jacking block
Point is connected with sleeve tip edge, and multiple jacking blocks are linked in sequence around the top of sleeve, the rectangle end face face of multiple jacking blocks
To the center of sleeve relatively, push rod is positioned in barrel bore, and the external diameter of push rod matches with the diameter of barrel bore, the length of push rod
Degree is more than the length of sleeve.
The above-mentioned jack-up device for the collapsed fracture block that resets, described jacking block is connected with sleeve tip edge by connecting sheet
Connecing, connecting sheet is resilient steel disc, and the upper end of steel disc plane connects with the middle means of spot welds on the long limit of the two of jacking block trapezoidal sides
Connecing, the lower end of steel disc plane is welded to connect with sleeve tip edge.
The above-mentioned jack-up device for the collapsed fracture block that resets, described sleeve is two body structures, and sleeve is by two same diameter
Metal canula composition, be connected by multiple springs between the tube wall of two sleeve pipes, the two ends of multiple springs respectively with two sets
Sealing of tube connects, and multiple springs are along the circumference uniform distribution of two sleeve pipes, and the compression direction of spring is parallel with the length direction of sleeve.
The above-mentioned jack-up device for the collapsed fracture block that resets, described spring is helical spring, or is zigzag plane bullet
Spring, the upper end of spring is welded to connect with the lower limb of upper sleeve, and the lower end of spring is welded to connect with the top edge of lower parts casing pipe.
The invention has the beneficial effects as follows:
The sleeve of the present invention is placed in osseous tunnel, and sleeve upper end is relative with tibial plateau collapsed fracture block position, and push rod is placed
In sleeve, upwards tapping push rod, push rod upper end is by multiple jacking blocks upwards jack-up of sleeve upper end, and multiple jacking blocks can be along set
Cylinder upper end-face edge carries out circumference upset, is significantly expanded by the jack-up area of sleeve upper end after jacking block upset, can be with jack-up
Bone piece more than the position that subsides of osseous tunnel diameter；Use spring connecting structure that the jack-up of sleeve upper end can be made to put down in the middle of sleeve
Face pressure according to bone piece when jack-up tilts, and bone piece of subsiding inclination fits type, is conducive to avoiding damage to bone piece of subsiding
Attachment structure.
The present invention solves tibia and subsides the not enough problem of the area jack-up area that significantly greater than osseous tunnel diameter causes,
Jack-up can dramatically increase jack-up area, it is ensured that jack-up effect；Jack-up device front end can be according to the position shape of sclerite simultaneously
And change angle, it is to avoid sclerite be mutually displaced and depart from cause subside portion structure destroy, in order to postoperative preferably
Molding recovers.
The present invention is that in bone surgery, tibia subsides the pioneering of bone piece jacking system, and the development for orthopaedics Minimally Invasive Surgery provides
Provide powerful support for, may be used for the bone piece of various bone surgery and subside jack-up operation, bone surgery field has fabulous pushing away
Wide prospect of the application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of jacking block；
Fig. 4 is the use view of the present invention；
Fig. 5 is the A-A sectional view of Fig. 4.
In figure, labelling is as follows: sleeve 1, jacking block 2, push rod 3, spring 4, connection sheet 5, tibia 6, tibial plateau collapsed fracture block
7, osseous tunnel 8, rectangle end face 9, trapezoidal side 10, triangle side 11.
Detailed description of the invention
The present invention is made up of sleeve 1, jacking block 2, push rod 3.
Showing in figure, sleeve 1 is constituted for sheet metal, and the external diameter of sleeve 1 matches with the diameter of osseous tunnel 8, sleeve 1
Length is more than the length of osseous tunnel 8.Sleeve 1 is placed in osseous tunnel 8, is the agent structure of jack-up device.
Showing in figure, jacking block 2 is the actuating mechanism of jack-up device.Jacking block 2 is multiple identical pentahedrons, each jacking block 2
End face is rectangle, and two sides are trapezoidal, and the long limit of two trapezoidal sides 10 is circular arc, the radian of circular arc and sleeve 1
Circumference arc matches, and the length of the minor face of trapezoidal side 10 is equal with the length of the minor face of rectangle end face 9, and respectively with length
Two minor face correspondences of square end face 9 connect, and the long limit of circular arc of two trapezoidal sides 10 is connected, two other of jacking block 2
Side is respectively triangle, and triangle side 11 is made up of the side of rectangle end face 9 and the side of two trapezoidal sides 10, top
The midpoint on the long limit of circular arc of the trapezoidal side 10 of block 2 two is connected with sleeve 1 tip edge.
Showing in figure, the long limit of the trapezoidal side 10 of jacking block 2 two overlaps after connecting and is connected with the midpoint of sleeve 1 tip edge
Connect.Connecting through connection sheet 5 to realize, connecting sheet 5 is resilient steel disc, and the upper end of steel disc plane is trapezoidal with the two of jacking block 2
The midpoint on the long limit of side 10 is welded to connect, and the lower end of steel disc plane is welded to connect with sleeve 1 tip edge.Under normal condition,
Connecting sheet 5 to be horizontal, during jacking block 2 jack-up, connect sheet upwards, jacking block 2 is positioned at the top connecting sheet 5.Owing to connecting sheet
For elastic steel sheet, therefore can bend, will not fracture.
In figure show, multiple jacking blocks 2 are linked in sequence around the top of sleeve 1, the rectangle end face 9 of multiple jacking blocks 2 towards
The center of sleeve 1 is relative.Under normal circumstances, multiple jacking blocks 2 close up to the center of sleeve 1, and jacking block 2 is positioned at the inner chamber of sleeve 1
In, a trapezoidal side 10 of jacking block 2 is positioned at the above horizontal plane of sleeve 1.
Showing in figure, push rod 3 is positioned in sleeve 1 inner chamber, and the external diameter of push rod 3 matches with the diameter of sleeve 1 inner chamber, push rod
The length of 3 is more than the length of sleeve 1.The effect of push rod 3 is upwards jack-up jacking block 2, increases the jack-up area of sleeve 1 upper end.
Showing in figure, sleeve 1 is two body structures, and sleeve 1 is made up of the metal canula of two same diameter, two sleeve pipes
Being connected by multiple springs 4 between tube wall, the two ends of multiple springs 4 are welded to connect with two sleeve pipes respectively, multiple springs 4 along
The circumference uniform distribution of two sleeve pipes, the compression direction of spring 4 is parallel with the length direction of sleeve 1.Spring 4 is used even in the middle of sleeve 1
Access node structure can make the jack-up plane of the sleeve 1 upper end pressure when jack-up according to bone piece tilt, and subside bone to inclination
Block fits type, the attachment structure of the bone piece that is conducive to avoiding damage to subsiding.
Showing in figure, spring 4 is helical spring, or is zigzag plane spring, the upper end of spring 4 and upper sleeve
Lower limb is welded to connect, and the lower end of spring 4 is welded to connect with the top edge of lower parts casing pipe.
The using method of the present invention is as follows:
Patient performs the operation under intravertebral anesthesia, takes dorsal position after anaesthetic effect is satisfied.Under perspective under tibial tubercle at 3cm
Penetrate Φ 2.5mm guide pin with suitable direction, stop at guide pin top to 7 times about 1cm of tibial plateau collapsed fracture block.
Holing along guide pin direction by the osseous tunnel shaper (another patent) that can retain sclerotin, boring arrives again
Below tibial plateau collapsed fracture block 7, exiting osseous tunnel shaper from osseous tunnel 8, the bone piece under cutting is formed by osseous tunnel
It is outside that osseous tunnel 8 taken out of by device.
The sleeve 1 of the present invention is inserted in osseous tunnel, taps gently with hand hammer, arrive tibial plateau collapsed fracture block 7 times
Side, sleeve 1 top and sclerite are fitted type by spring 4.Tapping push rod 3 with hand hammer to be opened up by jacking block 2, jacking block 2 is by sclerite
Jack-up.
Take out jack-up device, measure osseous tunnel 8 length, adsorbable bone defect filler (another patent) is inserted osseous tunnel
Fill in 8, finally fracture with plate fixation.
Claims (4)
1. the jack-up device for the collapsed fracture block that resets, it is characterised in that: it includes sleeve (1), jacking block (2), push rod
(3), sleeve (1) is that resilient sheet metal is constituted, and the length of sleeve (1) is more than the length of osseous tunnel (8), and jacking block (2) is
Multiple identical pentahedrons, the end face of each jacking block (2) is rectangle, and two sides of jacking block (2) are trapezoidal, two trapezoidal laterals
The long limit in face (10) is circular arc, and the radian of circular arc matches with sleeve (1) circumference arc, the minor face of trapezoidal side (10)
Length is equal with the length of the minor face of rectangle end face (9), and connection corresponding with two minor faces of rectangle end face (9) respectively,
The long limit of circular arc of two trapezoidal sides (10) is connected, and two other side of jacking block (2) is respectively triangle, triangle side
Face (11) is made up of the side of rectangle end face (9) and the side of two trapezoidal sides (10), (2) two trapezoidal sides of jacking block
(10) midpoint on the long limit of circular arc is connected with sleeve (1) tip edge, and multiple jacking blocks (2) are suitable around the top of sleeve (1)
Sequence connects, and the rectangle end face (9) of multiple jacking blocks (2) is relative towards the center of sleeve (1), and push rod (3) is positioned at sleeve (1) inner chamber
In, the external diameter of push rod (3) matches with the diameter of sleeve (1) inner chamber, and the length of push rod (3) is more than the length of sleeve (1).
Jack-up device for the collapsed fracture block that resets the most according to claim 1, it is characterised in that: described jacking block (2) leads to
Crossing connection sheet to be connected with sleeve (1) tip edge, connecting sheet is resilient steel disc, the upper end of steel disc plane and jacking block (2)
The midpoint on long limit of two trapezoidal sides (10) be welded to connect, the lower end of steel disc plane is welded with sleeve (1) tip edge even
Connect.
Jack-up device for the collapsed fracture block that resets the most according to claim 2, it is characterised in that: described sleeve (1) is
Two body structures, sleeve (1) is made up of the metal canula of two same diameter, by multiple springs (4) between the tube wall of two sleeve pipes
Being connected, the two ends of multiple springs (4) are welded to connect with two sleeve pipes respectively, and multiple springs (4) are along the circumference of two sleeve pipes
Uniform, the compression direction of spring (4) is parallel with the length direction of sleeve (1).
Jack-up device for the collapsed fracture block that resets the most according to claim 3, it is characterised in that: described spring (4) is
Helical spring, or be zigzag plane spring, the upper end of spring (4) is welded to connect with the lower limb of upper sleeve, spring (4)
The top edge of lower end and lower parts casing pipe be welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954950.7A CN106308915B (en) | 2016-11-03 | 2016-11-03 | A kind of jack-up device for resetting collapsed fracture block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954950.7A CN106308915B (en) | 2016-11-03 | 2016-11-03 | A kind of jack-up device for resetting collapsed fracture block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106308915A true CN106308915A (en) | 2017-01-11 |
| CN106308915B CN106308915B (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610954950.7A Active CN106308915B (en) | 2016-11-03 | 2016-11-03 | A kind of jack-up device for resetting collapsed fracture block |
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| Country | Link |
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| CN (1) | CN106308915B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106983554A (en) * | 2017-04-27 | 2017-07-28 | 上海市同济医院 | A kind of tibial plateau fracture repositor |
| CN109925044A (en) * | 2019-04-29 | 2019-06-25 | 新乡市中心医院(新乡中原医院管理中心) | Automatic expansion type bone grafting instrument |
| CN110403687A (en) * | 2019-07-30 | 2019-11-05 | 河北医科大学第三医院 | A kind of minimally invasive fixed device of tibial eminence fracture |
| CN111012465A (en) * | 2019-12-30 | 2020-04-17 | 衢州市中医医院 | Combined ejector rod for restoration of collapsed bone block |
| CN114366277A (en) * | 2022-01-29 | 2022-04-19 | 中国人民解放军中部战区总医院 | Quantitative telescopic tibial plateau collapse fracture block resetting device |
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| US4632101A (en) * | 1985-01-31 | 1986-12-30 | Yosef Freedland | Orthopedic fastener |
| US20040098017A1 (en) * | 2002-09-30 | 2004-05-20 | Advanced Polymers, Incorporated | Apparatus and methods for bone, tissue and duct dilatation |
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| CN1830399A (en) * | 2006-03-16 | 2006-09-13 | 刘小勇 | Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device |
| CN1883409A (en) * | 2006-07-11 | 2006-12-27 | 张祖仁 | Expander for vertebroplasty |
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| CN101385658A (en) * | 2008-09-17 | 2009-03-18 | 布金鹏 | Cave-in fracture restorer |
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| US20150335370A1 (en) * | 2007-12-14 | 2015-11-26 | Gmedelaware 2 Llc | Balloon expandable cement director and related methods |
| CN206443745U (en) * | 2016-11-03 | 2017-08-29 | 河北医科大学第三医院 | A kind of jack-up device for being used to reset collapsed fracture block |
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| US4632101A (en) * | 1985-01-31 | 1986-12-30 | Yosef Freedland | Orthopedic fastener |
| US20040098017A1 (en) * | 2002-09-30 | 2004-05-20 | Advanced Polymers, Incorporated | Apparatus and methods for bone, tissue and duct dilatation |
| CN1709206A (en) * | 2005-07-06 | 2005-12-21 | 四川大学华西医院 | Femoral head inner support device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106983554A (en) * | 2017-04-27 | 2017-07-28 | 上海市同济医院 | A kind of tibial plateau fracture repositor |
| CN106983554B (en) * | 2017-04-27 | 2019-05-21 | 上海市同济医院 | A kind of tibial plateau fracture repositor |
| CN109925044A (en) * | 2019-04-29 | 2019-06-25 | 新乡市中心医院(新乡中原医院管理中心) | Automatic expansion type bone grafting instrument |
| CN110403687A (en) * | 2019-07-30 | 2019-11-05 | 河北医科大学第三医院 | A kind of minimally invasive fixed device of tibial eminence fracture |
| CN111012465A (en) * | 2019-12-30 | 2020-04-17 | 衢州市中医医院 | Combined ejector rod for restoration of collapsed bone block |
| CN114366277A (en) * | 2022-01-29 | 2022-04-19 | 中国人民解放军中部战区总医院 | Quantitative telescopic tibial plateau collapse fracture block resetting device |
| CN114366277B (en) * | 2022-01-29 | 2024-01-16 | 中国人民解放军中部战区总医院 | Quantitative telescopic tibia platform collapse fracture block resetting device |
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|---|---|
| CN106308915B (en) | 2018-11-13 |
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