CN202263049U - Locking plate for therapy of femoral neck fracture - Google Patents
Locking plate for therapy of femoral neck fracture Download PDFInfo
- Publication number
- CN202263049U CN202263049U CN2011203563556U CN201120356355U CN202263049U CN 202263049 U CN202263049 U CN 202263049U CN 2011203563556 U CN2011203563556 U CN 2011203563556U CN 201120356355 U CN201120356355 U CN 201120356355U CN 202263049 U CN202263049 U CN 202263049U
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- screw hole
- supporting plate
- lockplate
- hole
- tuberosity
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Abstract
The utility model provides a locking plate for therapy of femoral neck fracture. The locking plate comprises a locking plate main body and a locking bolt, wherein, the locking plate main body comprises a tuberosity supporting plate positioned at the upper part and a supporting plate positioned at the lower part; a locking guiding hole is formed at the middle part of the tuberosity supporting plate; three locking bolt holes are formed around the locking guiding hole; the three locking bolt holes are formed on the tuberosity supporting plate in a triangular manner; a longitudinal slipping long hole is formed at the upper part of the supporting plate positioned at the lower part of the locking plate main body; a fourth locking bolt hole is formed at the lower part of the supporting plate; arc-shaped transition is adopted between the tuberosity supporting plate positioned at the upper part and the supporting plate positioned at the lower part; in addition, a bend with an angle Theta ranging from 10 to 26 degrees is formed between the tuberosity supporting plate and the supporting plate. The axes of the four holes formed on the tuberosity supporting plate are parallel, and an included angle Phi formed between the axial direction of the four holes and the longitudinal direction of the plane in which the supporting plate is positioned ranges from 120 to 135 degrees. Plate faces between the tuberosity supporting plate positioned at the upper part and the supporting plate positioned at the lower part adopt arc-shaped transitional surfaces, and a bend with the angle Theta ranging from 10 to 26 degrees is formed between the plate face of the tuberosity supporting plate and the plate face of the supporting plate.
Description
Technical field
This utility model relates to a kind of fracture of femoral neck treatment lockplate, is used to treat fracture of femoral neck, belongs to medical orthopedic instrument.
Background technology
The Therapeutic Method of fracture of femoral neck is divided into expectant treatment and operative treatment, for labile fracture of femoral neck, generally all adopts operative treatment, for 60 to the patient below 65 years old, adopts open reduction to add internal fixation treatment more.Three pieces of hollow screw technique for fixing of the many employings of fracture of femoral neck internal fixation treatment at present.Inserting needle under the femoral bone tuberosity to femoral head, reaches fixedly fracture site effect through femoral trochanteric, femoral neck.Though this technology difficulty is fracture site fixedly; But because three pieces of hollow screws do not interrelate, do not have other supports and fixing yet, exist significantly not enough: 1, in the agglutination of neck of femur; Be easy to generate the shortening of neck of femur, cause locking pin to withdraw from and shorten with lower limb; 2, stable type is poor, is easy to generate to receive displacement in the femoral head, causes receiving in the hip joint deformity; 3, need lying up of long period not take exercise by early loading.
Summary of the invention
The purpose of this utility model is a kind of stability of design fracture of femoral neck treatment preferably lockplate, improves the stable type and the reliability of neck of femur internal fixation.
The technical scheme of this utility model: the fracture of femoral neck treatment lockplate of this utility model comprises lockplate main body and lock screw; Its lockplate main body comprises the tuberosity supporting plate part on top and the gripper shoe part of bottom; There is a locking pilot hole at the middle part of tuberosity supporting plate part; Around the locking pilot hole, three screw hole are arranged, first screw hole, second screw hole, the 3rd screw hole, three screw hole distributions triangular in shape on tuberosity supporting plate part; One straight skidding slotted hole is arranged at the top of the gripper shoe part of bottom, and the 4th screw hole is arranged at the bottom of gripper shoe.
Described locking pilot hole is about the longitudinal midline O of lockplate main body in each 2mm scope.
Described first screw hole is in the longitudinal midline O of lockplate main body scope, and first screw hole is in locking pilot hole bottom, with the distance R 1=8～11mm of locking pilot hole; Second screw hole above center line O rear side, first screw hole, angle=65～85 of second screw hole and line and the center line O of locking pilot hole °; Second screw hole and the distance R 2=5～7mm that locks pilot hole; The 3rd screw hole above center line O front side, first screw hole, line and angle β=17～37 between the center line O of the 3rd screw hole and locking pilot hole °, the 3rd screw hole and the distance R 3=8～11mm that locks pilot hole.
It is parallel that four holes on tuberosity supporting plate part promptly lock the axle of pilot hole, first screw hole, second screw hole, the 3rd screw hole, four holes axially and supporting board divide longitudinal angle Φ=120～135 ° of place face.
Described lockplate body peripheral edge is the camber line combination, constitutes sole-shaped, and the tuberosity supporting plate partly is the sole part, and supporting board is divided into sole with the lower part, lockplate main body the widest part H=22～28mm.
The bending of angled θ=10～26 ° between the gripper shoe plate face partly of the plate face of the tuberosity supporting plate on described top part and bottom, the plate face of bending place is an arc transiting surface.
The advantage of this utility model: adopt this utility model; Be an integral body after lock screw and lockplate main body are tightened; Femoral head and neck there is stable supporting role; The healing that helps fracturing and prevent neck of femur shortening, move back interior the receipts deformity of nail and lower limb, the while can early functional exercise, accelerating bone healing.
1, three positions that connect capital screw hole are designed according to anatomical structure and biomechanical principle, and are more reasonable, more accurate.
2, the locking pilot hole at the middle part of tuberosity supporting plate points to the neck of femur vertical central axis, and other three pieces of lock screw of being more convenient for are squeezed into appointed positions exactly, and anti-rotation effect is arranged.
3, the straight skidding slotted hole cooperates with pilot hole, can adjust about the pilot hole, front and back position and angle of inclination, and the guide pin in the more convenient pilot hole is squeezed into neck of femur longitudinal center, can make the more docile and obedient lateral side of femur of lockplate main body; The straight skidding slotted hole plays the stable and supporting role to locking steel plate simultaneously.
Description of drawings
Fig. 1 is the main TV structure sketch map of this utility model.
Fig. 2 is that the B-B of Fig. 1 is to structural representation.
Fig. 3 is that the A-A of Fig. 1 is to structure user mode structural representation.
Fig. 4 is the right TV structure sketch map of Fig. 2.
Fig. 5 is the user mode sketch map of this utility model.
The specific embodiment
Below in conjunction with description of drawings this utility model embodiment:
Like Fig. 1, Fig. 3, Fig. 4: the fracture of femoral neck treatment location of this utility model; Comprise lockplate main body and lock screw; It is characterized in that: the lockplate main body comprises the tuberosity supporting plate part 1 on top and the gripper shoe part 2 of bottom; There is a locking pilot hole 1a at the middle part of tuberosity supporting plate part 1; Around locking pilot hole 1a, three screw hole are arranged, the first screw hole 1b, the second screw hole 1c, the 3rd screw hole 1d, three screw hole distributions triangular in shape on tuberosity supporting plate part 1; One straight skidding slotted hole 2a is arranged at the top of the gripper shoe part 2 of bottom, and the 4th screw hole 2b is arranged at the bottom of gripper shoe 2; The bending of angled θ=10～26 ° between the plate face of the plate face of the tuberosity supporting plate part 1 on top and the gripper shoe part 2 of bottom, the plate face of bending place is an arc transiting surface.
Described locking pilot hole 1a in each 2mm scope, promptly is no more than 2mm apart from longitudinal midline O about the longitudinal midline O of lockplate main body.
The described first screw hole 1b is in the longitudinal midline O of lockplate main body scope, and the first screw hole 1b is in locking pilot hole 1a bottom, with distance R 1=8～11mm of locking pilot hole 1a; The second screw hole 1c above center line O rear side, the first screw hole 1b, the line of the second screw hole 1c and locking pilot hole 1a and angle=65～85 of center line O °; The second screw hole 1c and the distance R 2=5～7mm that locks pilot hole 1a; The 3rd screw hole 1d is above center line O front side, the first screw hole 1b; The line of the 3rd screw hole 1d and locking pilot hole 1a and angle β=17～37 between the center line O °, the 3rd screw hole 1d and the distance R 3=8～11mm that locks pilot hole 1a.
The lockplate body peripheral edge is camber line combination, constitutes sole-shaped, and tuberosity supporting plate part 1 is the sole part, gripper shoe part 2 be sole with the lower part, lockplate main body the widest part H=22～28mm.Length L 1=32～the 40mm of tuberosity supporting plate part 1; The length L 2=22 of gripper shoe 2～30mm.
Mostly the lockplate main body is steel plate or titanium alloy sheet.
Fig. 3 be the A-A of Fig. 1 to structure user mode structural representation:
The bending of angled θ=10～26 ° between the plate face of the plate face of the tuberosity supporting plate part 1 on described top and the gripper shoe part 2 of bottom, the plate face of bending place is an arc transiting surface.
The axle in the locking pilot hole 1a on tuberosity supporting plate part 1, the first screw hole 1b, the second screw hole 1c, four holes of the 3rd screw hole 1d is parallel.Angle Φ=120～135 ° of the faces that axially belong in four holes with gripper shoe 2.
Preferably, the described locking pilot hole 1a and the first screw hole 1b are on the longitudinal midline O of lockplate main body.
Fig. 2 is that Figure 1B-B is to structural representation.
The inboard of lockplate main body, a side of promptly pasting bone are to think adaptive arcwall face with the bone surface shape.Adapt to the physiological curve of skeleton, radius R 4 is generally 15～30mm.
Fig. 5 is the user mode sketch map of this utility model, like Fig. 4, Fig. 5:
During use, under fluoroscopic machine, fracture site is resetted earlier; Comprising that normotopia resets resets with the side position, with the lockplate main body be positioned over femoral greater trochanter 6 below, under fluoroscopic machine, make the locking pilot hole 1a (tape guide device) on the lockplate main body point to femoral head and neck 4 vertical middle positions; In slip hole 2a, squeeze into one piece of screw 2a1, confirmed the position of lockplate main body, pin the lockplate main body then; On guider, pierce one piece of Kirschner wire; Make it in femoral head and neck longitudinal axis central authorities, perspective can be seen from positive side position, if there is deviation the position; Can through slip hole 2a regulate Kirschner wire about, front and back and top rake, make Kirschner wire be positioned at incidence longitudinal axis middle position in the positive side of neck of femur position.Then, connect the guider of screwing on the capital screw hole at three, be screwed into three pieces of lock screw 1b1,1c1,1d1, its direction is parallel with the Kirschner wire of locking pilot hole 1a.On screw hole 2b, be screwed into lock screw 2b1 at last.
The fracture of femoral neck treatment lockplate of this utility model comprises lockplate main body, four pieces of lock screw 1b1,1c1,1d1 and 2b1, one piece of plain screw 2a1.Lock hole all can be placed the lockplate guider with locking on the pilot hole; The three pieces of lock screw 1b1 in lockplate main body top, 1c1,1d1 are connected with the lockplate body, lock; Nail bar part plays fixedly fracture site effect in femoral bone tuberosity 6, neck of femur 4 and femoral head 5.One piece following lock screw 2b1 is fixed on the femoral shaft 3, plays the effect of support locking plate main body.The screw 2a1 of slip hole 2a combines to be adjusting lockplate body position with locking pilot hole 1a; Make the interior Kirschner wire of guider that is screwed into locking pilot hole 1a can be positioned over the longitudinal axis central part of neck of femur 4 and femoral head 5; Thereby can connect in the capital screw hole at three and be screwed into three pieces of neck of femur lock screw; Parallel with the Kirschner wire in the guider, make it on the corresponding position in neck of femur.
One, the locating hole of this utility model be strict be the shape of an irregular triangle knuckle and definite according to the neck of femur cross section; Be to go up knuckle, bottom knuckle, rear portion knuckle before the neck of femur cross section has; Three knuckle edges are circular arc type, the shape that is connected with long arc shape between knuckle and the knuckle.Select three screw holes promptly the position of the first screw hole 1b, the second screw hole 1c, the 3rd screw hole 1d be very crucial; This utility model has carried out the distance of the locking pilot hole 1a at screw hole and center preferably; (being confirmed by angle [alpha] and β) carried out preferably in the position; Make the position of the screw hole 1b that wins, the second screw hole 1c, the 3rd screw hole 1d lay respectively at the circular arc type scope district of three knuckles; Three screw hole resected femur cervical regions, heads through after preferred can reach Stabilization more, can prevent the displacement of fracture site.
Because the bottom knuckle of neck of femur links to each other with the femur square, be the dense area of femoral neck bone density, be the stress side of neck of femur.The top preceding upward knuckle and the rear portion knuckle of neck of femur also are the higher districts of bone density, are the tension side of neck of femur.Three pieces of lock screw are fixed on the biomethanics structure that three knuckle positions meet neck of femur, play stable femoral neck, head effect.
Two, longitudinal angle Φ=120～135 ° of the faces that axially belong in four holes with gripper shoe part 2; After making whole lockplate be attached under the femoral greater trochanter with anatomical shape, the locking pilot hole 1a at center almost overlaps with the axis of neck of femur, three pieces of lock screw through tuberosity supporting plate 1 part of lockplate main body pass under the tuberosity, neck of femur arrives femoral head exactly; Form an integral body with the gripper shoe part 2 of lockplate main body; The stronger support and the strength of stable femoral head and neck are arranged, make it fixing more stable, the probability of distortion and displacement is less; Can not cause to move back and receive the displacement deformity in nail, neck of femur shortening and the neck of femur, more help the healing of fracturing.
Simultaneously, as long as guide pin is squeezed into the neck of femur central axis, other three pieces of lock screw get final product parallel three knuckle parts squeezing into neck of femur, squeeze into conveniently.
Three, particularly slip hole 2a and locking pilot hole 1a match; Can make the interior guide pin of locking pilot hole throw the central part of the neck of femur longitudinal axis more accurately into, can make the more docile and obedient surface of bone of steel plate simultaneously, play Stabilization; In fixation process, nail also is not easy to get outside the neck of femur.
Claims (10)
1. a fracture of femoral neck is treated lockplate; Comprise lockplate main body and lock screw; It is characterized in that: the lockplate main body comprises the tuberosity supporting plate part (1) on top and the gripper shoe part (2) of bottom; There is a locking pilot hole (1a) at the middle part of tuberosity supporting plate part (1); Around locking pilot hole (1a), three screw hole are arranged, first screw hole (1b), second screw hole (1c), the 3rd screw hole (1d), three screw hole go up distribution triangular in shape in tuberosity supporting plate part (1); One straight skidding slotted hole (2a) is arranged at the top of the gripper shoe part (2) of bottom, and the 4th screw hole (2b) is arranged at the bottom of gripper shoe (2).
2. fracture of femoral neck according to claim 1 treatment lockplate is characterized in that: described locking pilot hole (1a) is about the longitudinal midline O of lockplate main body in each 2mm scope.
3. fracture of femoral neck treatment lockplate according to claim 1 and 2; It is characterized in that: first screw hole (1b) is in the longitudinal midline O of lockplate main body scope; First screw hole (1b) is in locking pilot hole (1a) bottom, with the distance R 1=8～11mm of locking pilot hole (1a); Second screw hole (1c) is in the top of center line O rear side, first screw hole (1b), the line of second screw hole (1c) and locking pilot hole (1a) and angle=65～85 of center line O °; Second screw hole (1c) and the distance R 2=5～7mm that locks pilot hole (1a); The 3rd screw hole (1d) in center line O front side, the top of first screw hole (1b); Line and angle β=17～37 between the center line O of the 3rd screw hole (1d) and locking pilot hole (1a) °, the 3rd screw hole (1d) and the distance R 3=8～11mm that locks pilot hole (1a).
4. fracture of femoral neck treatment lockplate according to claim 1 and 2; It is characterized in that: it is parallel that four holes on tuberosity supporting plate part (1) promptly lock the axle of pilot hole (1a), first screw hole (1b), second screw hole (1c), the 3rd screw hole (1d), longitudinal angle Φ=120～135 ° of the face that axially belongs to gripper shoe part (2) in four holes.
5. fracture of femoral neck treatment lockplate according to claim 1 and 2 is characterized in that: the length L 1=32～40mm of tuberosity supporting plate part (1); Length L 2=22～the 30mm of gripper shoe (2).
6. fracture of femoral neck treatment lockplate according to claim 1 and 2; It is characterized in that: the lockplate body peripheral edge is the camber line combination, constitutes sole-shaped, and tuberosity supporting plate part (1) is the sole part; Gripper shoe part (2) be sole with the lower part, lockplate main body the widest part H=22～28mm.
7. fracture of femoral neck treatment lockplate according to claim 3; It is characterized in that: it is parallel that four holes on tuberosity supporting plate part (1) promptly lock the axle of pilot hole (1a), first screw hole (1b), second screw hole (1c), the 3rd screw hole (1d), longitudinal angle Φ=120～135 ° of the face that axially belongs to gripper shoe part (2) in four holes.
8. fracture of femoral neck treatment lockplate according to claim 3; It is characterized in that: the lockplate body peripheral edge is the camber line combination, constitutes sole-shaped, and tuberosity supporting plate part (1) is the sole part; Gripper shoe part (2) be sole with the lower part, lockplate main body the widest part H=22～28mm.
9. fracture of femoral neck treatment lockplate according to claim 1 and 2; It is characterized in that: the partly bending of angled θ=10～26 ° between the plate face of (2) of the plate face of the tuberosity supporting plate on top part (1) and the gripper shoe of bottom, the plate face of bending place is an arc transiting surface.
10. fracture of femoral neck treatment lockplate according to claim 1 and 2; It is characterized in that: the partly bending of angled θ=10～26 ° between the plate face of (2) of the plate face of the tuberosity supporting plate on top part (1) and the gripper shoe of bottom, the plate face of bending place is an arc transiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203563556U CN202263049U (en) | 2011-09-22 | 2011-09-22 | Locking plate for therapy of femoral neck fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203563556U CN202263049U (en) | 2011-09-22 | 2011-09-22 | Locking plate for therapy of femoral neck fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263049U true CN202263049U (en) | 2012-06-06 |
Family
ID=46153861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203563556U Withdrawn - After Issue CN202263049U (en) | 2011-09-22 | 2011-09-22 | Locking plate for therapy of femoral neck fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429715A (en) * | 2011-09-22 | 2012-05-02 | 武汉市鹏来科技发展有限公司 | Positioning board for treating fracture of femur neck |
-
2011
- 2011-09-22 CN CN2011203563556U patent/CN202263049U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429715A (en) * | 2011-09-22 | 2012-05-02 | 武汉市鹏来科技发展有限公司 | Positioning board for treating fracture of femur neck |
| CN102429715B (en) * | 2011-09-22 | 2013-11-13 | 武汉市鹏来科技发展有限公司 | Positioning board for treating fracture of femur neck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120606 Effective date of abandoning: 20131113 |
|
| RGAV | Abandon patent right to avoid regrant |