CN104983454B - Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation - Google Patents
Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation Download PDFInfo
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- CN104983454B CN104983454B CN201510437270.3A CN201510437270A CN104983454B CN 104983454 B CN104983454 B CN 104983454B CN 201510437270 A CN201510437270 A CN 201510437270A CN 104983454 B CN104983454 B CN 104983454B
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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
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Abstract
The invention relates to a measuring and controlling tool used in the field of orthopaedics, and particularly to an extracorporeal measuring and controlling device for closed reduction in human femur fracture operation. The device comprises a cannula I, a cannula II, a connecting sleeve I, a connecting sleeve II, an angle pointer, an angle reading assembly and a length scale tube. The cannula I penetrates the connecting sleeve I and is perpendicular to the connecting sleeve I, and the cannula II penetrates the connecting sleeve II and is perpendicular to the connecting sleeve II. The angle reading assembly comprises an angle reading disc, an angle reading disc scale tube and a storage chamber, and one end of the angle reading disc scale tube is connected with the connecting sleeve II. One end of the length scale tube is connected with the connecting sleeve I, and the other end stretches into the storage chamber. The length scale tube is provided with a pointer guide groove, and the angle pointer is located in the pointer guide groove. The extracorporeal measuring and controlling device for closed reduction in the human femur fracture operation is simple in structure, convenient to operate, high in position precision and low in manufacturing cost. The device can accurately control the rotational angle and the moving length of the femur at the extracorporeal, wound on a patient can be reduced, the precision of minimally invasive operation can be effectively raised, and the effect of reduction of fracture can be improved.
Description
Technical field
Instrument is controlled the present invention relates to a kind of measurement for Medical orthopaedic field, is closed in more particularly to a kind of fracture operation
Reset external measurement and control instrument.
Background technology
Simultaneously Interlocking intramedullary fixation treats fracture of femoral shaft most common method to closed reduction as one kind.Closed reduction
Interlocking intramedullary fixation can reduce the wound in operation, with advantages such as few, the early ambulant functional training of minimally invasive, bleeding, can be with
Improve the healing rate of fracture.This treatment method is increasingly widely used in clinic, for the patient of femoral fracture, when using
When closed reduction fracture end and embedded with minimal invasion femoral interlocking nail, the accurate control in vitro in the case of reseting fracture under not looking at straight
The anglec of rotation and length at femoral fracture end are even more important, but femoral rotation angle and movable length are accurately controlled in operation
Always individual intractable problem.
Current preferable solution is that the reset of auxiliary control fracture is carried out using medical computer navigation system,
But a set of operation guiding system is expensive, tens million of RMB are about needed, be also required to external import, the doctor of the domestic overwhelming majority
Institute cannot popularize.So, major part orthopedist still controls the bone after closed reduction using the method for fluoroscopy during operation at present
Whether folding end controls the anglec of rotation and length completely, and neither one survey tool is controlled more accurately measure, only
Can be judged according to the clinical experience of operator doctor, often application condition is big, according to domestic report, error rate is more than 50%.
The content of the invention
It is an object of the invention to provide the external measurement and control instrument of closed reduction in a kind of human femur under loading fracture operation, the measurement and control instrument has
The features such as simple structure, easy to operate, positioning precision high, low manufacture cost, it can in vitro be accurately controlled femoral rotation
Angle and movable length, effectively solve the problems, such as above-mentioned background technology.
The technical scheme that uses to achieve the above object of the present invention is：Closed reduction is external in a kind of human femur under loading fracture operation
Measurement and control instrument, including sleeve pipe I, sleeve pipe II, branch sleeve I, branch sleeve II, angle indicator, angular readings component and length scale
Pipe, described sleeve pipe I and sleeve pipe II be respectively arranged with through its each upper and lower surface be used to position the pin hole I and pin hole of Kirschner wire
II, sleeve pipe I through branch sleeve I and axially vertical with branch sleeve I, sleeve pipe II through branch sleeve II and with branch sleeve II
It is axially vertical；The angular readings component includes rounded angular readings disk and is extended vertically by the rear end face of angular readings disk
The angular readings dial scale pipe of formation, angular readings dial scale pipe connects away from angular readings disk one end is coaxial with branch sleeve II
Connect, angular readings component also includes the host cavity extended rearwardly to form by angular readings disk front end face；Length scale pipe one end with
Branch sleeve I is coaxially connected, and the length scale pipe other end is extended in the host cavity of angular readings component, and length scale pipe can
It is axially moveable in host cavity and radial rotating；The pointer that the length scale pipe is additionally provided with for orientation angle pointer is led
To groove, angle indicator is positioned in pointer gathering sill and can be movable along pointer gathering sill.
Further technical scheme of the invention is：The angle indicator includes sliding block and the finger being vertically connected on sliding block
Pin, the pointer gathering sill is extended rearwardly to form by the front end face of length scale pipe, and pointer gathering sill includes being used for positioning sliding block
Locating slot and the narrow slit for passing through for pointer, the sliding block is positioned in the locating slot of pointer gathering sill, and pointer is passed through
Narrow slit is simultaneously protruded in the outside of length scale pipe.
Further technical scheme of the invention is：The branch sleeve I is provided with the trip bolt I for locking sleeve I,
Branch sleeve II is provided with the trip bolt II for locking sleeve II.
Further technical scheme of the invention is：It is additionally provided with the angular readings component for locking positioned at host cavity
The lock-screw of interior length scale pipe.
The external measurement and control instrument of closed reduction has the advantages that in human body femoral fracture art of the present invention：
1. corrective therapy is carried out to fracture using the external measurement and control instrument of closed reduction in human body femoral fracture art of the present invention,
It is i.e. preoperative by labeled in vitro, CT scan and Computerized three-dimensional software be simulated perform the operation, will CT data pass through computer three
Software processing is tieed up, and carries out sham operated and femoral fracture end completely resets, obtain the anglec of rotation number of degrees after accurate reset
According to and length data, mark point vertically squeezes into Kirschner wire to femoral bone cavitas medullaris center in vitro in art, by human femur under loading of the present invention
The external measurement and control instrument of closed reduction draws suffering limb and measures two Kirschner wire distances of control and reaches preoperative sham operated survey in fracture operation
The length value of amount, realizes accurately femur length control, then control rotation Kirschner wire to reach preoperative mould by this observing and controlling instrument
Intend the angular values of operation measurement, so as to realize accurately femoral rotation angle control, finally reach the hand with pre-operative simulation
The identical preferable reset effect for resetting completely of art scheme.Measurement and control instrument of the invention has simple structure, easy to operate, fixed
The advantages of position high precision, low manufacture cost, it can in vitro be accurately controlled femoral rotation angle and movable length, and it is right to reduce
The wound of patient, the control that more accurately resets can be also reached without expensive equipment.Fracture patient is entered using this observing and controlling instrument
Row treatment, will effectively improve the precision and reduction of the fracture effect of closure Minimally Invasive Surgery, will also improve the operation mark of orthopaedics industry
Standard, recovers after being conducive to corrective surgery, and greatly promotes the technology development in orthopaedic trauma Minimally Invasive Surgery field, to osteology
Art development is very helpful, and also will benefit from the patient of vast orthopaedic trauma, allows patient is happier to get well and carrying
Quality of life high.
2. the external measurement and control instrument of closed reduction is provided with lock-screw and is located at for locking in human body femoral fracture art of the present invention
Length scale pipe in host cavity, by lock-screw by length scale pipe locking positioning after the completion of length and angle adjustment,
Reading can very easily be read；And angle indicator is positioned in pointer gathering sill, angle can be referred to after the completion of positioning
Pin is moved near angular readings disk along pointer gathering sill, and reading is more accurate, effectively raises positioning precision of the invention.
The external measurement and control instrument of closed reduction in human body femoral fracture art of the present invention is made into one with reference to the accompanying drawings and examples
The explanation of step.
Brief description of the drawings
Fig. 1 is the structural representation of the external measurement and control instrument of closed reduction in human body femoral fracture art of the present invention；
Fig. 2 is the sectional view at B-B shown in Fig. 1；
Fig. 3 is the sectional view of length scale pipe shown in Fig. 1 and angle indicator；
Fig. 4 be the A of length scale pipe shown in Fig. 3 to side view；
Fig. 5 is the sectional view of angle indicator shown in Fig. 3；
Drawing reference numeral explanation：1- sleeve pipes I, 11- pin holes I, 2- branch sleeves I, 21- trip bolts I, 3- length scales pipe,
31- pointers gathering sill, 311- locating slots, 312- narrow slits, 4- angle indicators, 41- sliding blocks, 42- pointers, 5- angular readings component,
51- angular readings disk, 52- lock-screws, 53- host cavities, 54- angular readings dial scales pipe, the fastening of 6- branch sleeves II, 61-
Screw II, 7- sleeve pipes II, 71- pin holes II, 8- Kirschner wires II, 9- Kirschner wires I.
Specific embodiment
As shown in figure 1, the external measurement and control instrument of closed reduction in human body femoral fracture art of the present invention, including sleeve pipe I 1, sleeve pipe II
7th, branch sleeve I 2, branch sleeve II 6, angle indicator 4, angular readings component 5 and length scale pipe 3.
Described sleeve pipe I 1 and sleeve pipe II 7 be respectively arranged with through its each upper and lower surface be used for guide-localization Kirschner wire pin
Hole I 11 and pin hole II 71；During operation, Kirschner wire I 9 and Kirschner wire II 8 are each passed through pin hole I 11 and pin hole II 71 and are positioned at pin
In hole I and pin hole II.The branch sleeve I 2 is provided with the trip bolt I 21 for locking sleeve I 1, is set on branch sleeve II 6
There is the trip bolt II 61 for locking sleeve II 7, sleeve pipe I 1 passes through branch sleeve I 2 and, set axially vertical with branch sleeve I 2
Pipe II 7 passes through trip bolt I respectively through branch sleeve II 6 and axially vertical with branch sleeve II 6, sleeve pipe I 1 and sleeve pipe II 7
Positioned with trip bolt II and fastened.
The angular readings component 5 includes rounded angular readings disk 51 and vertical by the rear end face of angular readings disk 51
Extend the angular readings dial scale pipe 54 for being formed, angular readings dial scale pipe 54 is away from the one end of angular readings disk 51 and branch sleeve
II 6 is coaxially connected, and angular readings component 5 also includes the host cavity 53 extended rearwardly to form by the front end face of angular readings disk 51.It is long
Degree one end of graded tube 3 is coaxially connected with branch sleeve I 2, and the other end is extended in the host cavity 53 of angular readings component 5, length
Graded tube 3 is coordinated with host cavity 53 using gap, and it can be axially moveable and radial rotating in host cavity 53.
In the present embodiment, it is additionally provided with angular readings component 5 for locking the length scale in host cavity 53
The lock-screw 52 of pipe 3, after the completion of the distance and angle adjustment of Kirschner wire I 9 and Kirschner wire II 8, can twist lock-screw 52
Tightly length scale pipe 3 is fixed in host cavity 53, realize that the Kirschner wire I 9 and the distance of Kirschner wire II 8 and angle at two ends keep not
Become, follow-up operation can be facilitated.
As shown in figure 3, the length scale pipe 3 is additionally provided with the pointer gathering sill 31 for orientation angle pointer 4, pointer
Gathering sill 31 is extended rearwardly to form by the front end face of length scale pipe 3.Angle indicator 4 includes sliding block 41 and is vertically connected on sliding block
Pointer 42 on 41（As shown in Figure 5）, the pointer gathering sill 31 is including the locating slot 311 for positioning sliding block 41 and for supplying
The narrow slit 312 that pointer 42 is passed through（As shown in Figure 4）, narrow slit 312 is through the total length of locating slot 311.The sliding block 41 is matched somebody with somebody using gap
The mode of conjunction is positioned in the locating slot 311 of pointer gathering sill 31, and pointer 42 is through narrow slit 312 and protrudes in length scale pipe 3
Outside.The sliding block 41 being positioned in locating slot 311 can be movable along locating slot 311 and drives pointer 42 in narrow slit 312
It is mobile.Angle indicator 4 is positioned in pointer gathering sill 31, angle indicator 4 angle can be moved to along pointer gathering sill 31
Near reading dial 51, make reading more accurate, effectively raise positioning precision of the invention.
Angle index is provided with the angular readings disk 51, is divided on angular readings dial scale pipe 54 and length scale pipe 3
Length scale is not provided with it.
Distance between the Kirschner wire I 9 and Kirschner wire II 8 that are positioned in sleeve pipe I 1 and sleeve pipe II 7 can be carved by angular readings disk
Degree pipe 54 and the combination of length scale pipe 3 read, i.e. L=L1+L2, wherein L between Kirschner wire I 9 and Kirschner wire II 8 away from
From；L1 is distance of the Kirschner wire I 9 to the front end face of angular readings disk 51, the i.e. reading of length scale pipe 3；L2 is angular readings disk
To the distance of Kirschner wire II 8, L2 is fixed value to 51 front end faces in the present embodiment.
Kirschner wire I 9 and Kirschner wire II 8 in sleeve pipe I 1 and sleeve pipe II 7 is positioned at are in keeping parallelism in same plane
When, 0 degree of the orientation angle reading dial 51 of angle indicator 4 being positioned in pointer gathering sill 31；When Kirschner wire I 9 and Kirschner wire II 8
When producing relative rotation, the synchronous axial system of the meeting relative angle of length scale pipe 3 reading dial 51 is positioned at the angle in pointer gathering sill 31
Degree pointer 4 is also together rotated；The relative rotation angle that Kirschner wire I 9 and Kirschner wire II 8 are produced can be read by angle indicator 4 in angle
The corresponding angle value in position on number disk 51 reads.
Specifically used side of the external measurement and control instrument of closed reduction in bone fracture bonesetting operation in human body femoral fracture art of the present invention
Method is：
First, the thigh skin before surgery to injured fracture is adhered to as external anchor point with metal marker thing（Two
Point, positions fractured femur proximally and distally respectively）, CT scan is then carried out, CT scan data is soft by Computerized three-dimensional
Part treatment, is simulated operation and fracture end completely resets, and obtains the pivoting angle data and length number after accurate reset
According to it is determined that the relative length and relative angle of adjustment needed for fracture resets completely.
Second, the proximally and distally femur centre drill of fractured femur is respectively perpendicular in operation at 2 individual outside fix points
Enter Kirschner wire I 9 and Kirschner wire II 8, so that the proximally and distally femur position for determining to fracture in thigh deep by this two pieces of Kirschner wires
Put, now this two pieces of Kirschner wires I 9 are parallel in the same plane with Kirschner wire II 8.
3rd, in the case where lock-screw 52 unclamps, adjustment length graded tube 3 arrives suitable position, then by the present invention
Two sleeve pipes I 1 and sleeve pipe II 7 of external measurement and control instrument cover penetrate two pieces of Kirschner wires I 9 and Kirschner wire II 8 respectively, tighten trip bolt
I 21 and trip bolt II 61, Kirschner wire and sleeve pipe are fixed；By drawing the distal end of fractured femur, can on length scale pipe 3
To read the relative movement distance between two pieces of Kirschner wires I 9 and Kirschner wire II 8, if this relative movement length and preoperative mould
The relative length for intending determining in operation is consistent, also can be achieved with the length control of fractured femur reset.
4th, the angle indicator 4 that will be located into pointer gathering sill 31 slides angular readings along pointer gathering sill 31
Disk 51, by rotating the distal end of fractured femur in art, now length scale pipe 3 can drive angle indicator 4 to rotate simultaneously and at angle
The angle for rotating against is read on degree reading dial 51, if the phase determined in this angle for rotating against and preoperative sham operated
It is consistent to angle, also can be achieved with the anglec of rotation control of fractured femur.
In the present embodiment, length scale pipe 3 and branch sleeve I 2, angular readings dial scale pipe 54 and branch sleeve II 66
Shaping is respectively integrally machined, as the conversion of the present embodiment, interference fit, bonding, pin connection, spiral shell can be also used between them
Line connection or the combination connecting mode of above-mentioned connection；Angular readings disk 51 can make monoblock type with angular readings dial scale pipe 54
, separate type can be also fabricated to, it is combined into one by modes such as interference fit, bonding, threaded connection, pin connections.
Above example is only presently preferred embodiments of the present invention, and structure of the invention is not limited to what above-described embodiment was enumerated
Form, all any modification, equivalents made within the spirit and principles in the present invention etc., should be included in guarantor of the invention
Within the scope of shield.
Claims (4)
1. the external measurement and control instrument of closed reduction in a kind of human femur under loading fracture operation, it is characterised in that including sleeve pipe I（1）, sleeve pipe II
（7）, branch sleeve I（2）, branch sleeve II（6）, angle indicator（4）, angular readings component（5）With length scale pipe（3）, institute
State sleeve pipe I（1）With sleeve pipe II（7）Be respectively arranged with through its each upper and lower surface be used to position the pin hole I of Kirschner wire（11）With
Pin hole II（71）, sleeve pipe I（1）Through branch sleeve I（2）And with branch sleeve I（2）It is axially vertical, sleeve pipe II（7）Through connection
Sleeve II（6）And with branch sleeve II（6）It is axially vertical；The angular readings component（5）Including rounded angular readings disk
（51）And by angular readings disk（51）Rear end face extend vertically the angular readings dial scale pipe to be formed（54）, angular readings disk quarter
Degree pipe（54）Away from angular readings disk（51）One end and branch sleeve II（6）It is coaxially connected, angular readings component（5）Also include by
Angular readings disk（51）The host cavity that front end face is extended rearwardly to form（53）；Length scale pipe（3）One end and branch sleeve I（2）
It is coaxially connected, length scale pipe（3）The other end extends to angular readings component（5）Host cavity（53）It is interior, and length scale pipe
（3）Can be in host cavity（53）Inside it is axially moveable and radial rotating；The length scale pipe（3）It is additionally provided with for orientation angle
Pointer（4）Pointer gathering sill（31）, angle indicator（4）It is positioned at pointer gathering sill（31）In and can be along pointer gathering sill（31）
It is movable.
2. the external measurement and control instrument of closed reduction in human femur under loading fracture operation as claimed in claim 1, it is characterised in that the angle
Pointer（4）Including sliding block（41）Be vertically connected on sliding block（41）On pointer（42）, the pointer gathering sill（31）By length
Graded tube（3）Front end face extend rearwardly to form, pointer gathering sill（31）Including for positioning sliding block（41）Locating slot（311）
With for supplying pointer（42）The narrow slit for passing through（312）, the sliding block（41）It is positioned at pointer gathering sill（31）Locating slot（311）
It is interior, and pointer（42）Through narrow slit（312）And protrude in length scale pipe（3）Outside.
3. the external measurement and control instrument of closed reduction in human femur under loading fracture operation as claimed in claim 1, it is characterised in that the connection
Sleeve I（2）It is provided with for locking sleeve I（1）Trip bolt I（21）, branch sleeve II（6）It is provided with for locking sleeve
Ⅱ（7）Trip bolt II（61）.
4. the external measurement and control instrument of closed reduction in human femur under loading fracture operation as claimed in claim 1, it is characterised in that the angle
Reading component（5）On be additionally provided with for lock be located at host cavity（53）Interior length scale pipe（3）Lock-screw（52）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437270.3A CN104983454B (en) | 2015-07-23 | 2015-07-23 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437270.3A CN104983454B (en) | 2015-07-23 | 2015-07-23 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
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| Publication Number | Publication Date |
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| CN104983454A CN104983454A (en) | 2015-10-21 |
| CN104983454B true CN104983454B (en) | 2017-05-24 |
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| CN201510437270.3A Active CN104983454B (en) | 2015-07-23 | 2015-07-23 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584762B (en) * | 2018-06-12 | 2024-04-26 | 颉强 | Osteotomy reduction device for femur and tibia |
| CN109223160A (en) * | 2018-09-18 | 2019-01-18 | 牛云飞 | Adjustable minimally invasive pressurization fixed guider and its application method of fracturing |
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|---|---|---|---|---|
| EP0256984A2 (en) * | 1986-08-11 | 1988-02-24 | Jaquet Orthopedie S.A. | External bone fixation device with biocompression |
| CN101828951A (en) * | 2010-04-26 | 2010-09-15 | 奚华高 | In vitro fracture fixer |
| CN103083092A (en) * | 2013-03-01 | 2013-05-08 | 张忠荣 | Three-dimensional positioning and guiding device for penetrating vertebral pedicle through skin |
| CN104138293A (en) * | 2013-05-08 | 2014-11-12 | 刘瑾 | Lumbosacral vertebrae percutaneous pedicle screw placement positioner |
| CN104644254A (en) * | 2015-02-13 | 2015-05-27 | 四川大学华西医院 | Cervical vertebrae fracture dislocation anterior approach resetting inner fixing system |
| CN204890140U (en) * | 2015-07-23 | 2015-12-23 | 柳州铁道职业技术学院 | External observing and controlling appearance of closed reduction in human femoral fracture art |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2823093B1 (en) * | 2001-04-04 | 2003-12-19 | Newdeal Sa | GUIDE FOR ANGULAR POSITIONING OF THE BONES OF A JOINT WITH A VIEW TO ACHIEVING AN ARTHRODESIS |
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2015
- 2015-07-23 CN CN201510437270.3A patent/CN104983454B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256984A2 (en) * | 1986-08-11 | 1988-02-24 | Jaquet Orthopedie S.A. | External bone fixation device with biocompression |
| CN101828951A (en) * | 2010-04-26 | 2010-09-15 | 奚华高 | In vitro fracture fixer |
| CN103083092A (en) * | 2013-03-01 | 2013-05-08 | 张忠荣 | Three-dimensional positioning and guiding device for penetrating vertebral pedicle through skin |
| CN104138293A (en) * | 2013-05-08 | 2014-11-12 | 刘瑾 | Lumbosacral vertebrae percutaneous pedicle screw placement positioner |
| CN104644254A (en) * | 2015-02-13 | 2015-05-27 | 四川大学华西医院 | Cervical vertebrae fracture dislocation anterior approach resetting inner fixing system |
| CN204890140U (en) * | 2015-07-23 | 2015-12-23 | 柳州铁道职业技术学院 | External observing and controlling appearance of closed reduction in human femoral fracture art |
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