CN105769316A - Computer-assisted interlocking intramedullary nail distal locking system - Google Patents
Computer-assisted interlocking intramedullary nail distal locking system Download PDFInfo
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- CN105769316A CN105769316A CN201610185767.5A CN201610185767A CN105769316A CN 105769316 A CN105769316 A CN 105769316A CN 201610185767 A CN201610185767 A CN 201610185767A CN 105769316 A CN105769316 A CN 105769316A
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- guide rod
- positioning needle
- mounting seat
- locking system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/7241—Intramedullary pins, nails or other devices with special means of locking the nail to the bone the nail having separate elements through which screws pass
-
- 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
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- 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
- A61B17/921—Impactors or extractors, e.g. for removing intramedullary devices for 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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- 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)
- Surgical Instruments (AREA)
Abstract
The invention discloses a computer-assisted interlocking intramedullary nail distal locking system. The system comprises a handle, an intramedullary nail and a guide bar, wherein locking holes are formed in the intramedullary nail; a sleeve mounting seat is arranged on the guide bar; sleeve guiding holes are formed in the sleeve mounting seat; a positioning device is arranged on the guide bar and comprises a positioning pin or a positioning plate, and marks which are arranged at fixed distance and can be used for calibrating and measuring images are arranged on the positioning pin or the positioning plate; after the positioning pin or the positioning plate is mounted, a distal standard side image is acquired by a C-arm X-ray machine, the image is guided into a computer and then is calibrated by image measuring software according to the fixed distance on the positioning device, a plane-coordinate system is established by taking a mark point closest to the intramedullary nail as an original point and a vertical direction as a Y axis, coordinates of the two distal locking holes of the intramedullary nail in the plane-coordinate system are measured, positions of a horizontal vernier main scale and a vertical vernier main scale are adjusted, distal locking of the intramedullary nail can be completed with a conventional method, precise control is realized, and the precision can reach 0.02 mm.
Description
Technical field
The invention belongs to the device in treatment bone or joint or method；The technical field of its special equipment, is specifically related to a kind of area of computer aided intramedullary interlocking nail distal end locking system.
Background technology
With Interlocking intramedullary fixation, there is Wicresoft after Long bone fracture, fixing reliable, can the advantage such as early ambulant, but far-end locking difficulty often occurs in Clinical practice process.Existing far-end locking method is: the methods such as free-hand pinning, mechanical aiming device, magnetic navigation, computer assisted navigation, but these methods fundamentally do not solve this difficult problem: free-hand pinning patient and doctor to accept a large amount of x line and irradiate, and doctors and patients' actual bodily harm is big；If mechanical aiming device intramedullary pin positions bar and cannot position when coronalplane deforms, accuracy is not high；Magnetic navigation is only applicable to hollow intramedullary pin, expensive；And the existing computer assisted navigation system such as structure such as patent No. CN02158691.8, CN200410013630.9 is complicated, complex operation, precision also has much room for improvement.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of area of computer aided intramedullary interlocking nail distal end locking system, this area of computer aided intramedullary interlocking nail distal end locking system is provided by fixed range and can be used for the labelling of image calibration and measurement, and C arm X-ray machine obtains far-end true lateral positionImageAfter image is imported computer, image measurement software is used to be calibrated by fixed range on positioner, with the labelling point nearest from intramedullary pin for initial point, vertical direction is that Y-axis sets up plane coordinate system, measures two lock holes of intra medullary nail far-end coordinate in this plane coordinate system, adjust horizontal cursor and vertical vernier main scale position, completing intra medullary nail far-end locking, reach to be precisely controlled, precision is up to 0.02mm.
In order to solve above-mentioned technical problem, one area of computer aided intramedullary interlocking nail distal end locking system of the present invention, including hands handle, fix the intramedullary pin being connected with handle one end and fix, with the handle other end, the guide rod being connected, described intramedullary pin is provided with lock hole away from the far-end of handle, described guide rod is provided with sleeve mounting seat, described sleeve mounting seat is provided with for overlapping sleeved and drill bit cage guiding hole, described guide rod is provided with positioner, described positioner includes being vertically arranged in the positioning needle above lock hole or location-plate, described positioning needle or location-plate sidepiece are provided with the labelling that distance is fixed and be can be used for image calibration and measurement.
Further, described labelling is set to hole, location, anchor point or location line.
Further, it is 4 or 5 that hole, described location or anchor point are set to no less than 1 row and every number of columns, and adjacent hole, location or the distance of anchor point are set to 4mm or 5mm.
Further, described location line includes no less than about 2 horizontal lines be arrangeding in parallel, and adjacent horizontal distance is set to 4mm or 5mm.
Further, described guide rod is provided with the horizontal cursor frame parallel with intramedullary pin, it is provided with horizontal cursor main scale in described horizontal cursor frame, described horizontal cursor main scale is provided with vertical cursor frame near one end of lock hole, being provided with vertical vernier main scale in described vertical cursor frame, described sleeve mounting seat is fixed on the sidewall of vertical vernier main scale lower end.
Further, described positioner also includes the location-plate mounting seat or the positioning needle mounting seat that are arranged on horizontal cursor arch, described location-plate mounting seat or positioning needle mounting seat are provided with location-plate guide rod or positioning needle guide rod, described location-plate guide rod or positioning needle guide rod are provided with the location-plate holder for stationary positioned plate or positioning needle or positioning needle holder.
Further, described location-plate mounting seat or positioning needle mounting seat are provided with 2 pairs of screwed holes be arrangeding in parallel, described location-plate guide rod or positioning needle guide rod be fixedly connected on diagonal angle screwed hole by fixing screw I.
Further, described horizontal cursor frame bottom is provided with the vernier main scale parallel with vertical vernier main scale, and described guide rod is provided with the cursor frame for being set with vernier main scale.
Further, it is provided with bottom described location-plate or positioning needle and is arranged on the needle point of same straight line with 1 row hole, location or anchor point.
Effective effect of the present invention is in that:
Area of computer aided intramedullary interlocking nail distal end locking system of the present invention is provided by fixed range and the labelling for image calibration and measurement, C arm X-ray machine obtains far-end true lateral position image, after image is imported computer, image measurement software is used to be calibrated by the hole, location of fixed range in positioning needle, with the labelling point nearest from intramedullary pin for initial point, vertical direction is that Y-axis sets up plane coordinate system, measure two lock holes of intra medullary nail far-end coordinate in plane coordinate system, adjust horizontal cursor and vertical vernier main scale position, complete intra medullary nail far-end locking, reach to be precisely controlled, precision is up to 0.02mm.
Accompanying drawing explanation
Fig. 1 is the structural representation of area of computer aided intramedullary interlocking nail distal end locking system of the present invention；
Fig. 2 is the area of computer aided intramedullary interlocking nail distal end locking system of the present invention true lateral position image in C arm X-ray machine；
Fig. 3 is the plane coordinate system that area of computer aided intramedullary interlocking nail distal end locking system of the present invention builds in image measurement software；
Fig. 4 is the structural representation of another way in area of computer aided intramedullary interlocking nail distal end locking system of the present invention.
Accompanying drawing labelling: 1-handle；2-intramedullary pin；3-guide rod；4-horizontal cursor frame；5-lock hole；6-horizontal cursor main scale；7-positioning needle mounting seat；8-positioning needle guide rod；9-positioning needle holder；10-positioning needle；10a-location-plate；11-positions hole；11a-positions line；12-needle point；13-fixes screw；The vertical cursor frame of 14-；The vertical vernier main scale of 15-；16-sleeve mounting seat；17-cage guiding hole；18-cursor frame；19-vernier main scale；20-lock-screw I；21-lock-screw II；22-lock-screw III；23-fixes screw I.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, invention is described in further detail.
Embodiment one
It is illustrated in figure 1 the structural representation of area of computer aided intramedullary interlocking nail distal end locking system of the present invention；It is illustrated in figure 2 the area of computer aided intramedullary interlocking nail distal end locking system of the present invention true lateral position sheet in C arm X-ray machine；It is illustrated in figure 3 the plane coordinate system that area of computer aided intramedullary interlocking nail distal end locking system of the present invention builds in image measurement software；One area of computer aided intramedullary interlocking nail distal end locking system of the present invention, including handle 1, fix the intramedullary pin 2 being connected with handle 1 one end and fix, with handle 1 other end, the guide rod 3 being connected, described intramedullary pin 2 is provided with lock hole 5 away from the far-end of handle, described guide rod 3 is provided with sleeve mounting seat 16, described sleeve mounting seat 16 is provided with for overlapping sleeved and drill bit cage guiding hole 17, described guide rod 3 is provided with positioner, described positioner includes the positioning needle 10 being vertically arranged in above lock hole 5, described positioning needle 10 sidepiece is provided with apart from fixing and for image calibration and measurement labelling.
The present embodiment is provided by fixed range and can be used for the labelling of image calibration and measurement, C arm X-ray machine obtains far-end true lateral position image, after image is imported computer, image measurement software is used to be calibrated by the fixed range on positioner, with the labelling point nearest from intramedullary pin for initial point, vertical direction is that Y-axis sets up plane coordinate system, measure two lock holes of intra medullary nail far-end coordinate in plane coordinate system, adjust horizontal cursor and vertical vernier main scale position, complete intra medullary nail far-end locking, reaching to be precisely controlled, precision is up to 0.02mm
Further, described labelling is set to hole 11, location or anchor point, it is 4 or 5 that hole, described location 11 or anchor point are set to no less than 1 row and every number of columns, adjacent hole 11, location or the distance of anchor point are set to 4mm or 5mm, this structure of the present embodiment is provided by the setting of positioning needle 10, hole 11, location and quantity, distance, one is facilitate positioning needle 10 end near bone parts, and two is the accurate plane coordinate system of convenient formation, reaches the purpose being precisely controlled.
nullFurther，Described guide rod 3 is provided with the horizontal cursor frame 4 parallel with intramedullary pin 2，It is provided with horizontal cursor main scale 6 in described horizontal cursor frame 4，Described horizontal cursor main scale 6 is provided with vertical cursor frame 14 near one end of lock hole 5，Vertical vernier main scale 15 it is provided with in described vertical cursor frame 14，Described sleeve mounting seat 16 is fixed on the sidewall of vertical vernier main scale 15 lower end，Horizontal cursor main scale in the present embodiment、The certainty of measurement of vertical vernier main scale is up to 0.02mm,Horizontal cursor main scale 6 is fixed on horizontal cursor frame 4 by lock-screw II，Vertical cursor frame 14 is fixed on vertical vernier main scale 15 by lock-screw I 20，This structure is calibrated by the hole, location of fixed range in positioning needle by image measurement software，Kong Kongxin is positioned for initial point (0 with positioning needle,0)，Measure two lock holes of intra medullary nail far-end coordinate (a in plane coordinate system,b),By mobile and horizontal vernier main scale 6 and vertical vernier main scale 15，Horizontal range x1=a,Vertically distance y1=preset height+b,Just can complete intra medullary nail far-end locking.
Further, described horizontal cursor frame 4 top is provided with positioning needle mounting seat 7, described positioning needle mounting seat 7 is provided with positioning needle guide rod 8, described positioning needle guide rod 8 is provided with the positioning needle holder 9 for stationary positioned pin 10, in the present embodiment, positioning needle 10 is fixed on positioning needle holder 9 by fixing screw, the convenient skeleton intramedullary pin to different parts carries out far-end locking, is conveniently adjusted the position of positioning needle.
Further, described positioning needle mounting seat 7 is provided with 2 pairs of screwed holes be arrangeding in parallel, described positioning needle guide rod 8 is fixedly connected on diagonal angle screwed hole by fixing screw I 23, the convenient fixed position by changing positioning needle guide rod 8 of this structure, conveniently carries out intra medullary nail far-end locking to position, human body both sides respectively.
Further, the vernier main scale 19 parallel with vertical vernier main scale it is provided with bottom described horizontal cursor frame 6, described guide rod 3 is provided with the cursor frame 18 for being set with vernier main scale 19, this structure vernier main scale 19 is fixed on cursor frame 18 by lock-screw III22, by adjusting vernier main scale 19, being conveniently adjusted the height of horizontal cursor frame 6, the convenient skeleton intramedullary pin to different parts carries out far-end locking.
Further, it is provided with bottom preferred described positioning needle 10 and is arranged on the needle point 12 of same straight line with 1 row hole 11, location or anchor point, it is provided by needle point 12 end near bone parts, two is the accurate plane coordinate system of convenient formation, reach the purpose being precisely controlled, improving locking rate of accuracy reached to 99.9%, in the present embodiment, anchor point can adopt the round dot facilitating C arm X-ray machine to have an X-rayed.
Embodiment two
nullThe present embodiment and embodiment one are distinctive in that: described positioner includes the location-plate 10a being vertically arranged in above lock hole 5，Described location-plate 10a sidepiece is provided with apart from fixing and for image calibration and measurement labelling，Described labelling is set to location line 11a，Described location line 11a includes no less than about 2 horizontal lines be arrangeding in parallel，Adjacent horizontal distance is set to 4mm or 5mm，This structure of the present embodiment is provided by no less than about 2 horizontal lines be arrangeding in parallel，Image measurement software is facilitated to calculate accurately and set up coordinate system，When particularly intramedullary pin carries out front and back displacement in skeleton，Needle point on location-plate is with intramedullary pin not at grade，Visual angle error will be there is during imaging，By no less than about 2 horizontal lines be arrangeding in parallel，Measure two lock holes of intra medullary nail far-end coordinate in plane coordinate system，Visual angle error is there is when reducing imaging，Improve the accuracy rate of far-end locking.
Other structure is similar with embodiment one, and the present embodiment does not just describe one by one.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (9)
1. an area of computer aided intramedullary interlocking nail distal end locking system, including handle, fix the intramedullary pin being connected with handle one end and fix, with the handle other end, the guide rod being connected, described intramedullary pin is provided with lock hole away from the far-end of handle, described guide rod is provided with sleeve mounting seat, described sleeve mounting seat is provided with for overlapping sleeved and drill bit cage guiding hole, it is characterized in that: described guide rod is provided with positioner, described positioner includes being vertically arranged in the positioning needle above lock hole or location-plate, described positioning needle or location-plateOnIt is provided with apart from fixing and for image calibration and measurement labelling.
2. area of computer aided intramedullary interlocking nail distal end locking system according to claim 1, it is characterised in that: described labelling is set to hole, location, anchor point or location line.
3. area of computer aided intramedullary interlocking nail distal end locking system according to claim 2, it is characterized in that: it is 4 or 5 that hole, described location or anchor point are set to no less than 1 row and every number of columns, and adjacent hole, location or the distance of anchor point are set to 4mm or 5mm.
4. area of computer aided intramedullary interlocking nail distal end locking system according to claim 2, it is characterised in that: described location line includes no less than about 2 horizontal lines be arrangeding in parallel, and adjacent horizontal distance is set to 4mm or 5mm.
5. area of computer aided intramedullary interlocking nail distal end locking system according to claim 1, it is characterized in that: described guide rod is provided with the horizontal cursor frame parallel with intramedullary pin, it is provided with horizontal cursor main scale in described horizontal cursor frame, described horizontal cursor main scale is provided with vertical cursor frame near one end of lock hole, being provided with vertical vernier main scale in described vertical cursor frame, described sleeve mounting seat is fixed on the sidewall of vertical vernier main scale lower end.
6. area of computer aided intramedullary interlocking nail distal end locking system according to claim 5, it is characterized in that: described positioner also includes being arranged on location-plate mounting seat or the positioning needle mounting seat of horizontal cursor arch, described location-plate mounting seat or positioning needle mounting seat are provided with location-plate guide rod or positioning needle guide rod, described location-plate guide rod or positioning needle guide rod are provided with the location-plate holder for stationary positioned plate or positioning needle or positioning needle holder.
7. area of computer aided intramedullary interlocking nail distal end locking system according to claim 6, it is characterized in that: described location-plate mounting seat or positioning needle mounting seat are provided with 2 pairs of screwed holes be arrangeding in parallel, described location-plate guide rod or positioning needle guide rod and are fixedly connected on diagonal angle screwed hole by fixing screw I.
8. area of computer aided intramedullary interlocking nail distal end locking system according to claim 6, it is characterised in that: described horizontal cursor frame bottom is provided with the vernier main scale parallel with vertical vernier main scale, and described guide rod is provided with the cursor frame for being set with vernier main scale.
9. area of computer aided intramedullary interlocking nail distal end locking system according to claim 2, it is characterised in that: it is provided with bottom described location-plate or positioning needle and is arranged on the needle point of same straight line with 1 row hole, location or anchor point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185767.5A CN105769316B (en) | 2016-03-29 | 2016-03-29 | Area of computer aided intramedullary interlocking nail distal end locking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185767.5A CN105769316B (en) | 2016-03-29 | 2016-03-29 | Area of computer aided intramedullary interlocking nail distal end locking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105769316A true CN105769316A (en) | 2016-07-20 |
| CN105769316B CN105769316B (en) | 2018-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610185767.5A Expired - Fee Related CN105769316B (en) | 2016-03-29 | 2016-03-29 | Area of computer aided intramedullary interlocking nail distal end locking system |
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| CN (1) | CN105769316B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164986A (en) * | 2019-05-23 | 2019-08-23 | 晶澳（扬州）太阳能科技有限公司 | The preparation method of cell piece and its cell piece obtained |
| CN111067613A (en) * | 2019-12-25 | 2020-04-28 | 岳攀 | Rotary femoral intramedullary needle extractor |
| CN112515730A (en) * | 2020-12-17 | 2021-03-19 | 郝晓艳 | Drilling guide for intramedullary nail |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547286Y (en) * | 2002-07-02 | 2003-04-30 | 孙德修 | Far-end nail-hole positioning device of intramedullary-nail |
| DE202004014226U1 (en) * | 2004-09-07 | 2004-12-02 | Merete Medical Gmbh | Apparatus for inserting and fixing a bone marrow pin using an impact tool and a drill whereby the bore hole can be adapted to the bend of the nail |
| CN1919155A (en) * | 2006-09-27 | 2007-02-28 | 周志坚 | Mounting tools with vernier arrangement for interlocking intramedullary nail and using method thereof |
| US20140364859A1 (en) * | 2013-06-07 | 2014-12-11 | Stryker Trauma Gmbh | Targeting adjustment |
| CN205458991U (en) * | 2016-03-29 | 2016-08-17 | 王光明 | Computer -aided interlocking intramedullary nail distal end locking system |
-
2016
- 2016-03-29 CN CN201610185767.5A patent/CN105769316B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2547286Y (en) * | 2002-07-02 | 2003-04-30 | 孙德修 | Far-end nail-hole positioning device of intramedullary-nail |
| DE202004014226U1 (en) * | 2004-09-07 | 2004-12-02 | Merete Medical Gmbh | Apparatus for inserting and fixing a bone marrow pin using an impact tool and a drill whereby the bore hole can be adapted to the bend of the nail |
| CN1919155A (en) * | 2006-09-27 | 2007-02-28 | 周志坚 | Mounting tools with vernier arrangement for interlocking intramedullary nail and using method thereof |
| US20140364859A1 (en) * | 2013-06-07 | 2014-12-11 | Stryker Trauma Gmbh | Targeting adjustment |
| CN205458991U (en) * | 2016-03-29 | 2016-08-17 | 王光明 | Computer -aided interlocking intramedullary nail distal end locking system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110164986A (en) * | 2019-05-23 | 2019-08-23 | 晶澳（扬州）太阳能科技有限公司 | The preparation method of cell piece and its cell piece obtained |
| CN111067613A (en) * | 2019-12-25 | 2020-04-28 | 岳攀 | Rotary femoral intramedullary needle extractor |
| CN111067613B (en) * | 2019-12-25 | 2022-09-16 | 宿州微腾企业管理咨询服务有限公司 | Rotary femoral intramedullary needle extractor |
| CN112515730A (en) * | 2020-12-17 | 2021-03-19 | 郝晓艳 | Drilling guide for intramedullary nail |
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| Publication number | Publication date |
|---|---|
| CN105769316B (en) | 2018-07-31 |
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