CN200963183Y - Sight for marrow nail - Google Patents
Sight for marrow nail Download PDFInfo
- Publication number
- CN200963183Y CN200963183Y CNU2006202005068U CN200620200506U CN200963183Y CN 200963183 Y CN200963183 Y CN 200963183Y CN U2006202005068 U CNU2006202005068 U CN U2006202005068U CN 200620200506 U CN200620200506 U CN 200620200506U CN 200963183 Y CN200963183 Y CN 200963183Y
- Authority
- CN
- China
- Prior art keywords
- intramedullary pin
- guide rod
- rod
- telescopic arm
- arm
- 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.)
- Expired - Fee Related
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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
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1725—Guides or aligning means for drills, mills, pins or wires for applying transverse screws or pins through intramedullary nails or pins
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (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)
- Surgical Instruments (AREA)
Abstract
The utility model relates to the treatment equipment medical technical field for orthopedic surgery, which comprises a conductive rod, a proximal positioning rod that is provided with an aiguille hole and connected through a connection bolt, a positioning bracket connected with the conductive rod, and a positioning rod connected with the positioning bracket, additionally, an intersection acute angle form between the axial direction of the bolt and that of the aiguille hole is less than 10 degrees, wherein an adjustment bolt is arranged between the proximal positioning rod and the conductive rod to adjust the intersection angle, at least one strip-style angle-adjustment bolt hole is arranged on either proximal end positioning rod or the conductive rod. Compared with the prior art, the utility model used to help level with the aiguille hole on the bone when a intra-marrow nail is implanted in the orthopedic surgery in the hospital solves the shortcomings of the prior art, increases accuracy of bone aiguille, decreases the surgical difficulty and ensures the successful operation.
Description
Technical field
This utility model relates to the bone surgery therapeutic device technical field in the medical science, especially a kind ofly be used to assist aiming boring on bone when in bone surgery, implanting intramedullary pin, make lock screw can pass the instrument of the screw hole locking on this bone hole and the intramedullary pin.
Background technology
After fracturing, need fracture site is fixed, a kind of treatment means wherein is exactly to implant intramedullary pin at fracture site, when implanting intramedullary pin, the far-end of intramedullary pin is because stressed meeting departs under the original position curved, therefore need the implantation position of intramedullary pin be positioned, at this moment will be with the position of screw hole on the intramedullary pin sight aiming intramedullary pin, so that on bone, get out and the co-axial bone of screw hole hole.Proximally-located bar in the existing intramedullary pin sight generally is to stack up and down to be connected with guide rod, its connecting screw rod axially be located at proximally-located bar and guide rod on the axial line of drill bit bore vertical, this structure is when implanting intramedullary pin, if the far-end of intramedullary pin is owing to stressed having departed under the preposition bends, guide rod just can't move up and down the intramedullary pin of aiming at out of position, thereby make drill bit bore can't aim at the screw hole on the intramedullary pin, cause borehole throw.In addition, existing locating rod is a slick round bar, intramedullary pin is stress deformation when implanting, in the time of out of position, can't compare the numerical value of measuring the intramedullary pin position in advance and the numerical value of actual measurement intramedullary pin, and calculate the amount of skew, thereby can't proofread and correct accurately bore position.Locating rack on the existing besides intramedullary pin sight is a cantilever design that is contained in the guide rod far-end, the end installing locating rod that dangles at locating rack, occurred level departed from when the locating rack of this structure was implanted in the marrow at intramedullary pin, when promptly the drill bit bore in the intramedullary pin sight axially departs from, during locating rod just can't touch from top to bottom, aim at intramedullary pin, thereby also can cause the aiming failure.
Summary of the invention
The purpose of this utility model is to provide a kind of intramedullary pin sight, and it mainly solves, and to be existing intramedullary pin sight can not aim at the problem of the locking nail hole of intramedullary pin out of position the time at intramedullary pin.
In order to address the above problem, this intramedullary pin sight of the present utility model, it includes by connecting bolt and connects, which is provided with the proximally-located bar and the guide rod of drill bit bore, be connected locating rack and the locating rod that is contained on this locating rack on the guide rod, in addition, the axially parallel or the almost parallel of the axial and described drill bit bore of described bolt, its acute angle that differs formation is to make described proximally-located bar and described guide rod by rotating the drill bit bore that allows on the guide rod around connecting bolt along axially moving up and down that the proximally-located bar stretches out forward less than 10 ° of its effects, so that aiming out of position the lock(ing) bolt hole of intramedullary pin up or down.The angle adjustable bolt of regulating the two crossing angle is housed between described proximally-located bar and the guide rod, is provided with microscler angle adjustable bolt hole on one of the two in described proximally-located bar and guide rod at least.
As a kind of improvement of the present utility model, can be provided with the concave point or the groove that are recessed shape on the surface of described locating rod, or be the salient point or the raised line scale of convex shape.Can also be at least described proximally-located bar and described guide rod the two one of, be provided with a plurality of connecting bolts and a plurality of described angle adjustable bolt hole.
As another kind of improvement the of the present utility model, described locating rack can include an end and be fixed on fixed arm and the telescopic arm that is connected with this fixed arm on the described guide rod, be provided with the locking parts of the two relative position of locking at the junction surface of described fixed arm and described telescopic arm, described locating rod is contained in an end of described telescopic arm, is provided with on the telescopic arm of this end along the axial laterally projecting sight bead of described locating rod.Connecting portion structure between described fixed arm and the described telescopic arm can be cylindrical shell and be threaded onto this intravital bar; Described locking parts are the screws that are installed on the described barrel wall.
Owing to adopted such scheme, this utility model compared with prior art has following beneficial effect:
1, the angle adjustable bolt of regulating the two crossing angle is housed between its proximally-located bar and the guide rod, the axially parallel or the almost parallel of the axial and described drill bit bore of this connecting bolt, and be provided with microscler angle adjustable bolt hole on one of the two in described proximally-located bar and guide rod at least, make that guide rod can be that the axle center turns an angle with the connecting bolt, can make guide rod measure numerical value and rotate adjustment according to locating rod, in the process of implanting intramedullary pin, depart from or descend the intramedullary pin in precalculated position with tracking aiming, thereby realize bone is located exactly, boring.
2, the surface of its locating rod is provided with the scale of recessed shape or convex shape, can be in the intramedullary pin implantation process stress deformation and out of position the time, conveniently read and calculate the numerical value that departs from, thereby deviation position is aimed at accurately.
3, the locating rack setting has the structure of fixed arm and telescopic arm, and tracking aiming is carried out in the offset that takes place in the time of can implanting in the marrow to intramedullary pin.
Description of drawings
Fig. 1 is this utility model structural representation.
The left view of Fig. 2 accompanying drawing 1.
Fig. 3 is that the A of Fig. 1 is to view.
The specific embodiment
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and cooperate Figure of description, be described in detail below:
In Fig. 1, Fig. 2, structure shown in Figure 3, have connecting bolt hole and angle adjustable bolt hole on the proximally-located bar 1 of the present utility model.Have 5 pairs of connecting bolt holes 10 and microscler angle adjustable bolt hole 11 on the guide rod 2, connecting bolt hole of being opened on the axial distance in the every pair of connecting bolt hole 10 and angle adjustable bolt hole 11 and the proximally-located bar 1 and the axial distance of regulating between the bolt hole equate, select use for the intramedullary pin of different model.Proximally-located bar 1 is connected by connecting bolt 6 by the connecting bolt hole with guide rod 2.Connecting bolt 6 axially with the axially parallel of drill bit bore 5, the angle adjustable bolt 9 of the two crossing angle of adjusting is housed on the angle adjustable bolt hole between proximally-located bar 1 and the guide rod 2.On proximally-located bar 1 and guide rod 2, be provided with drill bit bore 5,12, drill bit fairlead 13,14 also is housed in these holes.The bottom of the fixed arm 3 of locating rack is connected on the guide rod 2, its top is tubular construction, the telescopic arm 15 of locating rack is housed in the tube of the fixed arm 3 of locating rack, locating rod 4 is contained on the telescopic arm 15 of this locating rack, the outstanding end of telescopic arm 15 is equipped with locating rod 4, on the telescopic arm 15 of this end, be provided with along locating rod 4 axial laterally projecting sight beads 15.1, the screw 16 that is used to lock fixed arm 3 and telescopic arm 15 relative positions is housed on the fixed arm 3 of locating rack, on the surface of locating rod 4, is provided with the scale of groove shapes.
Specific operation process:
When installing and using, the near-end and the connecting screw rod 7 of intramedullary pin 8 to be tightened, connecting bolt hole and angle adjustable bolt hole according to the model of intramedullary pin selects length with it to adapt link together near-end locating rod and guide rod by connecting bolt.And measure in advance with the position of 4 pairs of intramedullary pins of locating rod, read predetermined value.After intramedullary pin 8 implanted bone cavity, can use X-ray machine to observe intramedullary pin whether occurred level skew in bone cavity, i.e. departing from along the axis direction of the drill bit bore of guide rod 2.If horizontal-shift has taken place, can unclamp screw 16, adjust telescopic arm 15, make the sight bead on it aim at intramedullary pin, screw screw 16 then, along axially bone being holed of locating rod 4, locating rod 4 is inserted the inner touching of bone cavity intramedullary pin, the physical location of intramedullary pin is measured, according to the predetermined numerical value of the contrast of the reading on the locating rod 4, if deviation is arranged between the two, can calculate the amount of deflection earlier, regulate deviation by angle adjustable bolt again.Finish the aiming of bone hole this moment.After this promptly bone is spudded in along the drill bit bore on the guide rod 2, bored the bone hole after, be screwed into lock screw far-end bone be connected with intramedullary pin in it, can finish the distal locking of intramedullary pin; And then from the drill bit bore of proximally-located bar 1 near-end bone is holed, subsequently and be screwed into lock screw near-end bone is connected with intramedullary pin in it, can finish the fixed operation technique of nail in the bone.
Description according to the technical solution of the utility model and preferred embodiment thereof; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; can make various possible being equal to and change or replacement, and all these changes or replacement all should belong to the protection domain of claim of the present utility model.
Claims (10)
1. intramedullary pin sight, it includes proximally-located bar and the guide rod that is connected, be which is provided with drill bit bore by connecting bolt, be connected locating rack and the locating rod that is contained on this locating rack on the guide rod, it is characterized in that: the acute angle that axially differs formation of the axial and described drill bit bore of described bolt is less than 10 °, the angle adjustable bolt of regulating the two crossing angle is housed between described proximally-located bar and the guide rod, is provided with microscler angle adjustable bolt hole on one of the two in described proximally-located bar and guide rod at least.
2. intramedullary pin sight according to claim 1 is characterized in that: be provided with scale on the surface of described locating rod.
3. intramedullary pin sight according to claim 2 is characterized in that: described graduated shape is a concave point.
4. intramedullary pin sight according to claim 2 is characterized in that: described graduated shape is a groove.
5. intramedullary pin sight according to claim 2 is characterized in that: described graduated shape is a salient point.
6. intramedullary pin sight according to claim 2 is characterized in that: described graduated shape is a raised line.
7. according to claim 1,2,3,4,5 or 6 described intramedullary pin sights, it is characterized in that: at least described proximally-located bar and described guide rod the two one of, be provided with a plurality of connection screws and a plurality of described angle adjustable bolt hole.
8. intramedullary pin sight according to claim 1, it is characterized in that: described locating rack includes an end and is fixed on fixed arm and the telescopic arm that is connected with this fixed arm on the described guide rod, be provided with the locking parts of the two relative position of locking at the junction surface of described fixed arm and described telescopic arm, described locating rod is contained in an end of described telescopic arm, is provided with on the telescopic arm of this end along the axial laterally projecting sight bead of described locating rod.
9. intramedullary pin sight according to claim 7 is characterized in that: described locating rack includes an end and is fixed on fixed arm and the telescopic arm that is connected with this fixed arm on the described guide rod, described fixed arm and described stretching
The contract junction surface of arm is provided with the locking parts of the two relative position of locking, and described locating rod is contained in an end of described telescopic arm, is provided with on the telescopic arm of this end along the axial laterally projecting sight bead of described locating rod.
10. intramedullary pin sight according to claim 9 is characterized in that: the connecting portion structure between described fixed arm and the described telescopic arm is cylindrical shell and is threaded onto this intravital bar; Described locking parts are the screws that are installed on the described barrel wall.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006202005068U CN200963183Y (en) | 2005-06-20 | 2006-06-13 | Sight for marrow nail |
| PCT/CN2006/001321 WO2006136086A1 (en) | 2005-06-20 | 2006-06-14 | An intramedullary nail collimator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200441 CN2812857Y (en) | 2005-06-20 | 2005-06-20 | Intramedullary nail aiming device |
| CN200520200441.2 | 2005-06-20 | ||
| CNU2006202005068U CN200963183Y (en) | 2005-06-20 | 2006-06-13 | Sight for marrow nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200963183Y true CN200963183Y (en) | 2007-10-24 |
Family
ID=37570099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006202005068U Expired - Fee Related CN200963183Y (en) | 2005-06-20 | 2006-06-13 | Sight for marrow nail |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN200963183Y (en) |
| WO (1) | WO2006136086A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2495331A (en) * | 2011-10-07 | 2013-04-10 | Levant Orthopaedics Ltd | Mechanical locator and positioning device for locking intramedullary nails |
| CN108904034A (en) * | 2018-06-04 | 2018-11-30 | 江苏嘉斯康医疗科技有限公司 | One kind is convenient for fixed and firm humerus sighting device |
| CN112331054A (en) * | 2020-10-23 | 2021-02-05 | 国网山东省电力公司微山县供电公司 | Power line control model |
| CN114617625A (en) * | 2020-12-14 | 2022-06-14 | 钟乐意 | Intramedullary nail mechanical aiming device based on cross locking screw positioning |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104095678B (en) * | 2014-01-16 | 2016-07-13 | 无锡市闻泰百得医疗器械有限公司 | A kind of layer-stepping spinal column nail seat |
| CN107802337B (en) * | 2017-11-24 | 2024-04-09 | 苏州市康力骨科器械有限公司 | Limiting adjustable pre-tightening positioning device |
| CN114557760A (en) * | 2022-03-01 | 2022-05-31 | 戴建辉 | Guider for spinous process vertebral lamina articular process screw and using method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2391562Y (en) * | 1999-10-26 | 2000-08-16 | 蒋谊康 | Femoral locking intramedullary nail alignment device |
| ITBO20020200A1 (en) * | 2002-04-15 | 2003-10-15 | Hit Medica Srl | DEVICE FOR THE POSITIONING OF A SCREW TO BE ASSOCIATED AND AN ENDOMIDULAR NAIL FIXED IN THE FEMORE MEDILLARY CHANNEL |
| CN2662844Y (en) * | 2003-08-27 | 2004-12-15 | 王庆贤 | Improved femoral intramedullary nail aiming instrument |
| CN2681693Y (en) * | 2004-03-06 | 2005-03-02 | 孙德修 | Automatic indicator for aiming far end pinhole of intramedullary nail with block |
| CN2704325Y (en) * | 2004-06-18 | 2005-06-15 | 汤勇智 | Locked intramedullary nail and its positioner |
-
2006
- 2006-06-13 CN CNU2006202005068U patent/CN200963183Y/en not_active Expired - Fee Related
- 2006-06-14 WO PCT/CN2006/001321 patent/WO2006136086A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2495331A (en) * | 2011-10-07 | 2013-04-10 | Levant Orthopaedics Ltd | Mechanical locator and positioning device for locking intramedullary nails |
| CN108904034A (en) * | 2018-06-04 | 2018-11-30 | 江苏嘉斯康医疗科技有限公司 | One kind is convenient for fixed and firm humerus sighting device |
| CN112331054A (en) * | 2020-10-23 | 2021-02-05 | 国网山东省电力公司微山县供电公司 | Power line control model |
| CN112331054B (en) * | 2020-10-23 | 2022-06-03 | 国网山东省电力公司微山县供电公司 | Power line control model |
| CN114617625A (en) * | 2020-12-14 | 2022-06-14 | 钟乐意 | Intramedullary nail mechanical aiming device based on cross locking screw positioning |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006136086A1 (en) | 2006-12-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 Termination date: 20120613 |