CN102119869B - Drilling locator special for collum femoris - Google Patents
Drilling locator special for collum femoris Download PDFInfo
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- CN102119869B CN102119869B CN 201110075814 CN201110075814A CN102119869B CN 102119869 B CN102119869 B CN 102119869B CN 201110075814 CN201110075814 CN 201110075814 CN 201110075814 A CN201110075814 A CN 201110075814A CN 102119869 B CN102119869 B CN 102119869B
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- hole
- positioning needle
- femur
- needle
- neck
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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
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1742—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip
- A61B17/175—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the hip for preparing the femur for hip prosthesis insertion
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- 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)
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a drilling locator special for collum femoris. The drilling locator comprises a base body, a drill sleeve slidably installed in a central through hole of the base body, a bent first locating pin and a second locating pin, wherein the pin point of the first locating pin is bent downward and is positioned over the axial extension line of the central through hole and the distance between the pin point of the first locating pin and the axial extension line of the central through hole is half of the anteroposterior diameter of collum femoris; and the second locating pin and the first locating pin are in parallel arrangement or vertical arrangement, the second locating pin is longer than the first locating pin, the pin point of the second locating pin is lower than that of the first locating pin, and the distance between the pin point of the first locating pin and the second locating pin is half of the axial diameter of collum femoris. The drilling locator ensures accurate location and successful drilling at one time and avoids drilling deflection or failure.
Description
Technical field
The present invention relates to the orthopedic medical device technical field, specifically, relate to a kind of neck of femur special jewel hole locator.
Background technology
When fracture takes place owing to a variety of causes in the positions such as greater trochanter of human femur under loading, just need to pass through bone surgery with drill bit neck of femur boring through the proximal femur lateral, fix again afterwards.
Be a global difficult problem how with the disposable neck of femur of squeezing into of drill bit.Existing neck of femur boring positioner is various, like the localizer that Switzerland " AO " produces, is on matrix, to be processed with the through hole that is used for the plug-in mounting drill bushing; During boring, the head of drill bushing leans on greater trochanter, and drill bit creeps into greater trochanter and neck of femur after the pilot hole of drill bushing stretches out; Whole boring procedure carries out with surgical experience basically, and boring has certain blindness, and boring is bored partially or the phenomenon of boring failure happens occasionally; Prolonged operating time; Increase operating difficulty, increased the weight of patient trauma, influenced the operation quality.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can accurately locate, prevent to hole partially or the neck of femur special jewel hole locator of holing and failing.
For solving the problems of the technologies described above, technical scheme of the present invention is: neck of femur special jewel hole locator, comprise matrix, and said matrix is provided with central through hole; Drill bushing, said drill bushing are slidingly mounted in the said central through hole, and said drill bushing is provided with the through hole that supplies drill bit guiding usefulness; First positioning needle; Said first positioning needle is bending; The needle point of said first positioning needle bends downwards; The needle point of said first positioning needle be positioned at said central through hole the axis extended line directly over, the distance between the axis extended line of the needle point of said first positioning needle and said central through hole is anteroposterior diameter half the of neck of femur; The tail end of said first positioning needle is fixed in the upper surface of said matrix; Second positioning needle, said second positioning needle laterally arranges or vertical setting with said first positioning needle, and said second positioning needle is longer than said first positioning needle, and the needle point of said second positioning needle is lower than the needle point of said first positioning needle; Distance between the needle point of said first positioning needle and said second positioning needle is the radius size in footpath up and down of neck of femur.
As optimized technical scheme, two sides that said matrix is relative are respectively equipped with the chute perpendicular to said central through hole; The tail end of said second positioning needle is provided with installation portion; Said installation portion is provided with and the suitable lobe of said chute shape; Said installation portion is provided with the installation portion through hole perpendicular to said central through hole, is provided with the fastening bolt on the matrix shown in being used for said second positioning needle is fixed in the said installation portion through hole.
As optimized technical scheme, the installation portion of the said second positioning needle tail end is provided with an above mounting points, and the tail end of said second positioning needle is installed on one of them mounting points.
As optimized technical scheme, said chute is " U " connected in star or dovetail groove.
As optimized technical scheme; Said localizer also comprises the drill bushing locking device; Said drill bushing locking device comprises handle; One end of said handle is provided with external screw thread, and said matrix is provided with the internal thread through hole that is connected with said central through hole, and the male end of said handle is installed in the said internal thread through hole.
Owing to adopted technique scheme, the invention has the beneficial effects as follows: when using neck of femur special jewel hole locator of the present invention to position boring, the needle point of first positioning needle is pricked the front at neck of femur; The needle point of second positioning needle is pricked on neck of femur, regulates the position of drill bushing, and the head of drill bushing is leaned in the proximal femur outside; Can hole, because the needle point of first positioning needle is pricked in the front of neck of femur, second positioning needle is kept off on neck of femur; Locate; Simultaneously second positioning needle also plays position-limiting action, and when the head of adjustment drill bushing leaned the position in the proximal femur outside, the direction of drill bit and collodiaphyseal angle can be different; And drill bit is bound to be in the position that presets in the neck of femur, drill bit can not occur and get out outside the neck of femur and cause the boring failure.
Owing to be respectively equipped with chute in two relative sides of matrix; Second positioning needle is through the removable side that is fixedly connected on matrix of the installation portion of its tail end.During use; Can be according to patient's concrete fracture site; Only need to carry out the location drilling of left lower limb femur or right lower limb femur, no matter promptly carry out left lower limb femur or the operation of the location drilling of right lower limb femur through second positioning needle being installed in matrix left side or right side; Only need a neck of femur special jewel hole locator to get final product, very easy to use.
Because the installation portion of the second positioning needle tail end is provided with an above mounting points; The tail end of second positioning needle is installed on one of them mounting points; Make the distance of winning between the positioning needle and second positioning needle adjustable; Make a neck of femur special jewel hole locator of the present invention possess the function of large, medium and small model, can adapt to different neck of femur sizes and different requirements of boring the nail position.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 be the present invention in use, the position on the femur between each anchor point concerns sketch map;
Fig. 3 be the present invention in use, each anchor point and the drill bit position on the neck of femur cross section concerns sketch map;
Among the figure: the 1-matrix; The 11-chute; The 2-drill bushing; 3-first positioning needle; 4-second positioning needle; The 5-fastening bolt; The 6-installation portion; The 61-mounting points; 7-hands handle; The 8-neck of femur; The 9-greater trochanter; The 10-proximal femur outside.
The specific embodiment
Embodiment one
As shown in Figure 1, neck of femur special jewel hole locator comprises matrix 1, and said matrix 1 is provided with central through hole; Drill bushing 2, said drill bushing 2 is slidingly mounted in the said central through hole, and said drill bushing 2 is provided with the through hole that supplies the guiding usefulness that drill bit creeps into or withdraw from; First positioning needle 3; Said first positioning needle 3 is bending; The needle point of said first positioning needle 3 bends downwards; The needle point of said first positioning needle 3 be positioned at said central through hole the axis extended line directly over, the distance between the axis extended line of the needle point of said first positioning needle 3 and said central through hole is anteroposterior diameter half the of neck of femur; The tail end of said first positioning needle 3 is fixed in the upper surface of said matrix 1; Second positioning needle 4, the plane parallel at the plane at said second positioning needle 4 places and said first positioning needle 3 places, said second positioning needle 4 is longer than said first positioning needle 3, and the needle point of said second positioning needle 4 is lower than the needle point of said first positioning needle 3; Distance between the needle point of said first positioning needle 3 and said second positioning needle 4 is the radius size in footpath up and down of neck of femur.
In the present embodiment, said matrix 1 two relative sides are respectively equipped with the chute 11 perpendicular to said central through hole; The tail end of said second positioning needle 4 is provided with installation portion 6; Said installation portion 6 is provided with and the suitable lobe of said chute 11 shapes; Said installation portion 6 is provided with the installation portion through hole perpendicular to said central through hole, is provided with the fastening bolt 5 on the matrix 1 shown in being used for said second positioning needle 4 is fixed in the said installation portion through hole.Owing to be respectively equipped with chute 11 in matrix 1 two relative sides; Second positioning needle 4 is through installation portion 6 removable sides that are fixedly connected on matrix 1 of its tail end; During use, can only need through second positioning needle 4 being installed in the left side or the right side of matrix 1 according to patient's concrete fracture site; Can carry out the location drilling of left lower limb femur or right lower limb femur; No matter promptly carry out the operation of the left lower limb femur or the location drilling of right lower limb femur, only need a neck of femur special jewel hole locator to get final product, very easy to use.
In the present embodiment; The installation portion 6 of said second positioning needle, 4 tail ends is provided with more than one mounting points 61; The tail end of said second positioning needle 4 is installed on one of them mounting points 61, and said mounting points 61 is an installing hole, and the tail end of second positioning needle 4 and installing hole tight fit are installed.Through a plurality of mounting points 61 are set; Make the distance of winning between the positioning needle 3 and second positioning needle 4 adjustable; Make a neck of femur special jewel hole locator of the present invention possess the function of large, medium and small model, can adapt to different neck of femur sizes and different requirements of boring the nail position.
In the present embodiment, said chute 11 is " U " connected in star, certainly, also can select dovetail groove for use.
In the present embodiment; Said localizer also comprises the drill bushing locking device; Said drill bushing locking device comprises handle 7; One end of said handle 7 is provided with external screw thread, and said matrix 1 is provided with the internal thread through hole that is connected with said central through hole, and the male end of said handle 7 is installed in the said internal thread through hole.
As shown in Figures 2 and 3, when using neck of femur special jewel hole locator of the present invention to position boring, the needle point of first positioning needle 3 is pricked the front at neck of femur 8; Be the A point, the needle point of second positioning needle 4 is pricked on neck of femur 8, i.e. the B point; Regulate the position of drill bushing 2, make the head of drill bushing 2 lean D point, can hole in the proximal femur outside 10; Because the needle point of first positioning needle 3 is pricked in the front of neck of femur 8, the needle point of second positioning needle 4 is pricked on neck of femur 8, locatees; Simultaneously second positioning needle 4 also plays position-limiting action, and when the head of adjustment drill bushing 2 leaned the position in the proximal femur outside 10, the direction of drill bit and collodiaphyseal angle can be different; And drill bit is bound to be in the position that presets in the neck of femur 8; Promptly shown in Figure 3, drill bit C necessarily is in the zone shown in the broken circle, drill bit can not occur and get out outside the neck of femur 8 and cause the boring failure.This neck of femur special jewel hole locator has been guaranteed localized accuracy, guarantees disposable boring success.
Embodiment two
Embodiment two and embodiment one are basic identical, and difference is: the plane at said second positioning needle 4 places is vertical with the plane at said first positioning needle 3 places.
Embodiment three
Embodiment three and embodiment one are basic identical, and difference is that said installation portion 6 is symmetricly set on the both sides of said matrix 1, and with said matrix 1 non-removable being fixed as one.
The above only is giving an example of best mode for carrying out the invention.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the present invention's spirit and principle, can also make some distortion and improvement.Protection scope of the present invention is as the criterion with the content of claim, and any equivalent transformation that carries out based on teachings of the present invention is also within protection scope of the present invention.
Claims (4)
1. neck of femur special jewel hole locator is characterized in that: comprise
Matrix (1), said matrix (1) is provided with central through hole;
Drill bushing (2), said drill bushing (2) is slidingly mounted in the said central through hole, and said drill bushing (2) is provided with the through hole that supplies drill bit guiding usefulness;
First positioning needle (3); Said first positioning needle (3) is bending; The needle point of said first positioning needle (3) be positioned at said central through hole the axis extended line directly over, the distance between the needle point of said first positioning needle (3) and the axis extended line of said central through hole is anteroposterior diameter half the of neck of femur; The tail end of said first positioning needle (3) is fixed in the upper surface of said matrix (1);
Second positioning needle (4); Said second positioning needle (4) laterally arranges or vertical setting with said first positioning needle (3); Said second positioning needle (4) is longer than said first positioning needle (3), and the needle point of said second positioning needle (4) is lower than the needle point of said first positioning needle (3); Distance between the needle point of said first positioning needle (3) and said second positioning needle (4) is the radius size in footpath up and down of neck of femur;
Two sides that said matrix (1) is relative are respectively equipped with the chute (11) perpendicular to said central through hole; The tail end of said second positioning needle (4) is provided with installation portion (6); Said installation portion (6) is provided with and the suitable lobe of said chute (11) shape; Said installation portion (6) is provided with the installation portion through hole perpendicular to said central through hole, is provided with the fastening bolt (5) on the matrix (1) shown in being used for said second positioning needle (4) is fixed in the said installation portion through hole.
2. neck of femur special jewel hole locator as claimed in claim 1; It is characterized in that: the installation portion (6) of said second positioning needle (4) tail end is provided with an above mounting points (61), and the tail end of said second positioning needle (4) is installed on one of them mounting points (61).
3. neck of femur special jewel hole locator as claimed in claim 1 is characterized in that: said chute (11) is " U " connected in star or dovetail groove.
4. like each described neck of femur special jewel hole locator of claim 1 to 3; It is characterized in that: said localizer also comprises the drill bushing locking device; Said drill bushing locking device comprises handle (7); One end of said handle (7) is provided with external screw thread, and said matrix (1) is provided with the internal thread through hole that is connected with said central through hole, and the male end of said handle (7) is installed in the said internal thread through hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110075814 CN102119869B (en) | 2011-03-21 | 2011-03-21 | Drilling locator special for collum femoris |
| PCT/CN2011/082920 WO2012126253A1 (en) | 2011-03-21 | 2011-11-25 | Positioning device specifically for drilling femur neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110075814 CN102119869B (en) | 2011-03-21 | 2011-03-21 | Drilling locator special for collum femoris |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102119869A CN102119869A (en) | 2011-07-13 |
| CN102119869B true CN102119869B (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110075814 Active CN102119869B (en) | 2011-03-21 | 2011-03-21 | Drilling locator special for collum femoris |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102119869B (en) |
| WO (1) | WO2012126253A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102119869B (en) * | 2011-03-21 | 2012-11-14 | 潍坊航维医疗器械有限公司 | Drilling locator special for collum femoris |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091696B1 (en) * | 1998-06-29 | 2004-09-08 | Plus Endoprothetik Ag | Device for inserting a prosthetic knee |
| US7588577B2 (en) * | 2004-07-15 | 2009-09-15 | Wright Medical Technology, Inc. | Guide assembly for intramedullary fixation and method of using the same |
| CN202027655U (en) * | 2011-03-21 | 2011-11-09 | 潍坊航维医疗器械有限公司 | Special drilling locator for femoral neck |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0416213B8 (en) * | 2003-11-20 | 2021-06-22 | Microport Orthopedics Holdings Inc | guide loop for guiding the placement of the guidewire in the femur |
| ATE371410T1 (en) * | 2004-04-20 | 2007-09-15 | Finsbury Dev Ltd | ALIGNMENT GUIDANCE |
| US8083746B2 (en) * | 2004-05-07 | 2011-12-27 | Arthrex, Inc. | Open wedge osteotomy system and surgical method |
| CN201135491Y (en) * | 2008-01-12 | 2008-10-22 | 孟令国 | Intertrochanteric fracture dynamichipscrew internal fixing locater |
| GB0822078D0 (en) * | 2008-12-03 | 2009-01-07 | Finsbury Dev Ltd | Tool |
| CN201631355U (en) * | 2010-03-18 | 2010-11-17 | 李福如 | Reduction, aiming and fixing apparatus for femoral lesser trochanter |
| CN102119869B (en) * | 2011-03-21 | 2012-11-14 | 潍坊航维医疗器械有限公司 | Drilling locator special for collum femoris |
-
2011
- 2011-03-21 CN CN 201110075814 patent/CN102119869B/en active Active
- 2011-11-25 WO PCT/CN2011/082920 patent/WO2012126253A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1091696B1 (en) * | 1998-06-29 | 2004-09-08 | Plus Endoprothetik Ag | Device for inserting a prosthetic knee |
| US7588577B2 (en) * | 2004-07-15 | 2009-09-15 | Wright Medical Technology, Inc. | Guide assembly for intramedullary fixation and method of using the same |
| CN202027655U (en) * | 2011-03-21 | 2011-11-09 | 潍坊航维医疗器械有限公司 | Special drilling locator for femoral neck |
Non-Patent Citations (1)
| Title |
|---|
| JP特表2007-536011A 2007.12.13 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012126253A1 (en) | 2012-09-27 |
| CN102119869A (en) | 2011-07-13 |
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Address after: 261061 No. 419 Dongfang Road, hi tech Development Zone, Shandong, Weifang Patentee after: SHANDONG HANGWEI ORTHOPAEDICS MEDICAL INSTRUMENT Co.,Ltd. Address before: 261061 No. 419 Dongfang Road, hi tech Development Zone, Shandong, Weifang Patentee before: Weifang Hangwei Medical Instrument Co.,Ltd. |