CN202437322U

CN202437322U - Clinical multi-dimensional intramedullary fixator capable of vertically and horizontally locking

Info

Publication number: CN202437322U
Application number: CN2011205650737U
Authority: CN
Inventors: 李新军; 亓兰珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-09-19
Anticipated expiration: 2021-12-30

Abstract

The utility model relates to a clinical multi-dimensional intramedullary fixator capable of vertically and horizontally locking, in particular to an internal fixation appliance/equipment for long tubal bone fracture treatment or orthodontic treatment. Two sides inside the intramedullary fixator are provided with vertical sliding chutes; the vertical sliding chutes are internally provided with vertical lock pins with a certain elasticity; two ends of the intramedullary fixator are respectively a head end and a tail end; the head end is provided with a groove, a supporting lock pin and a vertical lock pin, and the groove is internally provided with the supporting lock pin; the tail end is provided with a cover wire, a tail end band, a tail end screw, a U-shaped groove and a six prismatic groove; a cortical bone lock pin, a cancellous bone lock pin and four femoral neck lock pins are respectively penetrated in lock pin holes; the tail end of the intramedullary fixator is sleeved with the tail end band; and the cover wire is connected with the screw thread of the tail end screw. The clinical multi-dimensional intramedullary fixator is simple in structure, convenient and flexible in operation, capable of realizing closed reduction installation, shortening the operating time and reducing the operative wound area, beneficial to the recovery of patients and the pain relief of the patients and widely used as an appliance/equipment for long tubal bone fracture treatment or orthodontic treatment.

Description

Clinical usefulness is locked multi-C stereo holder in the marrow in length and breadth

Technical field

This utility model relates to a kind of clinical usefulness and locks multi-C stereo holder in the marrow in length and breadth, especially for the internal fixation device equipment of treatment long tubular bone fracture or malformation correction treatment.

Background technology

At present, intramedullary nail with lock is not provided with vertical lock and can not fixes by multi-C stereo in the prior art, and the spongy bone pinning is not set yet; Need be long with operating time, the fixing difficulty of first inserting end pinning, wound area is big; Need after the operation to take out an end pinning, otherwise height takes place in the disunion rate, causes the phenomenon of broken nail with secondary; Increased the patient suffering, brought many inconvenience to operator; The pre-bending position of intramedullary pin is constant in addition, has than big-difference with bone physiology camber, the fixing of inapplicable and intercondylar fracture of the femur and fracture of femoral neck and intertrochanteric fracture of the femur.

Summary of the invention

The clinical usefulness of this utility model is locked the purpose of multi-C stereo holder in the marrow in length and breadth; Be to overcome above-mentioned defective and a kind of clinical usefulness that designs is locked multi-C stereo holder in the marrow in length and breadth; It is to adopt cross locking nail and the stringer chute of willfully pressing spongy bone pinning or neck of femur pinning and marrow inner fixer; Vertical pinning slides in the stringer chute and has certain elasticity; Cross locking nail with willfully press spongy bone pinning or neck of femur pinning in medullary cavity, to form multi-C stereo to fixedly secure, after go into end and fixedly be easy to squeeze into the cross locking nail with sight, realize the interior fixed purpose of multi-C stereo of the marrow of lock in length and breadth that treatment long tubular bone fracture or malformation correction are treated.

The clinical usefulness of this utility model is locked the interior multi-C stereo holder of marrow in length and breadth and is taked following technical scheme to realize; It is to be made up of sight, spongy bone pinning, cortical bone pinning, marrow inner fixer, vertical pinning, neck of femur pinning and support pinning, and the place, both sides is provided with the stringer chute in the marrow inner fixer, and device is indulged pinning in the stringer chute; Vertical pinning has certain elasticity; The two ends of marrow inner fixer are respectively head end and tail end, Baltimore groove is set on the head end and supports pinning and vertical pinning, and device supports pinning in the Baltimore groove; Lid silk, tail end hoop, tail end leading screw, locking nail hole, U-lag and six rib grooves are set on the tail end; Penetrate cortical bone pinning, spongy bone pinning and four neck of femur pinnings in the locking nail hole respectively, be nested with the tail end hoop on the tail end of marrow inner fixer, the lid silk is connected with tail end leading screw screw thread; On the tail end of stringer chute U-lag is set, device sight in the U-lag; The head end that the marrow internal fixation is clamored is after the end pulp cavity of fracturing gets into other end pulp cavity; Squeeze into from the tail end head-end along the stringer chute of marrow inner fixer by vertical pinning and to be fixed on the cortical bone; The stringer chute mouth of head end can guarantee vertical pinning to two tilt, and the head end of when the head end outlet of stringer chute is gone out, indulging pinning points to cortical bone and fixes; Again with spongy bone pinning or cortical bone pinning through a side seam spongiosa or cortical bone is passed the offside spongy bone or cortical bone is fixed; Intertrochanteric fracture of the femur or fracture of femoral neck person lock on the marrow inner fixer setting of neck of femur locking nail hole not in one plane in length and breadth, can three-dimensional locking in neck of femur with the neck of femur pinning; The support pinning of head end will support pinning through sight and walk crosswise and squeeze into the medullary cavity center and can block in the Baltimore groove of head end; To cover silk after wiping out by the outstanding tail end hoop redundance of vertical pinning and be screwed in the tail end leading screw, reach the interior fixed effect of multi-C stereo of the marrow of lock in length and breadth of treatment long tubular bone fracture or malformation correction treatment.

The effect that the clinical usefulness of this utility model is locked multi-C stereo holder in the marrow in length and breadth is simple in structure, and is flexible to operation, but closed reduction is installed; Shortened operating time; Reduce the operation wound area, need not take out an end pinning, help patients ' recovery as second operation; Alleviate less patient suffering, be widely used in the training equipment of long tubular bone fracture or malformation correction.

Description of drawings

The clinical usefulness of this utility model is locked the interior multi-C stereo holder of marrow in length and breadth and will be combined accompanying drawing to describe in further detail.

Fig. 1 is the structural representation that the clinical usefulness of this utility model is locked multi-C stereo holder in the marrow in length and breadth.

1-lid silk, 2-tail end hoop, 3-tail end leading screw, 4-spongy bone pinning, 5-tail end, 6-cortical bone pinning, 7-locking nail hole, 8-marrow inner fixer, 9-head end, 10-vertical pinning 11-Baltimore groove 12-stringer chute 13-U-lag 14-six rib grooves 15-neck of femur pinning 16-support pinning.

The specific embodiment

With reference to Fig. 1, the clinical usefulness of this utility model is locked multi-C stereo holder in the marrow in length and breadth, and it is to be made up of sight, spongy bone pinning 4, cortical bone pinning 6, marrow inner fixer 8, vertical pinning 10, neck of femur pinning 15 and support pinning 16; The place, both sides is provided with stringer chute 12 in the marrow inner fixer 8; The vertical pinning 10 of device in the stringer chute 12, vertical pinning 10 has certain elasticity, and the two ends of marrow inner fixer 8 are respectively head end 9 and tail end 5; Baltimore groove 11 is set on the head end 9 and supports pinning 16 and vertical pinning 10; Device supports pinning 16 in the Baltimore groove 11, and lid silk l, tail end hoop 2, tail end leading screw 3, locking nail hole 7, U-lag 13 and six rib grooves 14 are set on the tail end 5, penetrates cortical bone pinning 6, spongy bone pinning 4 and four neck of femur pinnings 15 in the locking nail hole 7 respectively; Be nested with tail end hoop 2 on the tail end 5 of marrow inner fixer 8; Lid silk l is connected with tail end leading screw 3 screw threads, on the tail end 5 of stringer chute 12 U-lag 13 is set, device sight in the U-lag 13; The marrow internal fixation is clamored 8 head end 9 after fracture one end pulp cavity gets into other end pulp cavity; Squeeze into from tail end 5 head-end 9 along the stringer chute 12 of marrow inner fixer 8 by vertical pinning 10 and to be fixed on the cortical bone; 12 mouthfuls of the stringer chutes of head end 9 can guarantee vertical pinning 10 to two tilt, and the head end 9 of vertical pinning 10 points to cortical bone and fixes when head end 9 outlets of stringer chute 12 are gone out; Again with spongy bone pinning 4 or cortical bone pinning 6 through side seam spongiosas or cortical bone is passed the offside spongy bone or cortical bone is fixed; Intertrochanteric fracture of the femur or fracture of femoral neck person lock on the marrow inner fixer 8 neck of femur locking nail hole 7 in length and breadth and are provided with not in one plane, can three-dimensionally lock in neck of femur with neck of femur pinning 15; The support pinning 16 of head end 9 will support pinning 16 through sight and walk crosswise and squeeze into the medullary cavity center and can block in the Baltimore groove 11 of head end 9; To cover a silk l after wiping out by vertical pinning 10 outstanding tail end hoop 2 redundances and be screwed in the tail end leading screw 3, reach the interior fixed effect of multi-C stereo of the marrow of lock in length and breadth of treatment long tubular bone fracture or malformation correction treatment.

The clinical usefulness of this utility model is locked the enforcement of multi-C stereo holder in the marrow in length and breadth; It is to be got into again after fracture site gets into other end pulp cavity through fracture one end pulp cavity by head end 9; By vertical pinning 10 along stringer chute 12 from tail end 5 dozens of head-end 9 and expose head end 9 and be fixed on the cortical bone; Vertical pinning 10 has part to expose to outside the stringer chute 12 on the way; And fix with medullary cavity medial wall on the way, be fixed on the opposite side cortical bone through locking nail hole 7 through a side seam cortex through the spongy bone pinning 4 or the cortical bone pinning 6 of sight again tail end 5; Intertrochanteric fracture of the femur or fracture of femoral neck can three-dimensionally lock in neck of femur with neck of femur pinning 15; The fracture pulverizing is provided with the support pinning 16 of head end 9 when serious; Put tail end hoop 2 after wiping out tail end 5 unnecessary vertical pinnings 10, will cover silk l and be screwed in the tail end leading screw 3, prevent that vertical pinning 10 from withdrawing from along stringer chute 12; Lock marrow inner fixer 8 in length and breadth and be through vertical pinning 10 evagination parts, sclerotin is fixed in marrow inner fixer 8 exposed parts of and head end 9 fixing with the medullary cavity inwall along stringer chute 12 and the pulp cavity; Spongy bone pinning 4 or cortical bone pinning 6 reach after fixing through sight to be locked in the pulp cavity multi-C stereo in length and breadth and fixes; Can prevent that rotation from can prevent again to shrink back; Vertical pinning 10 is provided with certain spring function and is provided with certain flexible fastening function again; Marrow inner fixer 8 cambers are formulated with the normal camber of bone, meet the bone physiologic radian.

Claims

1. a clinical usefulness is locked multi-C stereo holder in the marrow in length and breadth; It is by sight, spongy bone pinning (4), cortical bone pinning (6), marrow inner fixer (8), vertical pinning (10), neck of femur pinning (15) and supports pinning (16) formation; It is characterized in that place, the interior both sides of marrow inner fixer (8) is provided with stringer chute (12); The vertical pinning (10) of device in the stringer chute (12); Vertical pinning (10) has certain elasticity; The two ends of marrow inner fixer (8) are respectively head end (9) and tail end (5), Baltimore groove (11) is set on the head end (9) and supports pinning (16) and vertical pinning (10), and device supports pinning (16) in the Baltimore groove (11); Lid silk (l), tail end hoop (2), tail end leading screw (3), locking nail hole (7), U-lag (13) and six rib grooves (14) are set on the tail end (5); Penetrate cortical bone pinning (6), spongy bone pinning (4) and four neck of femur pinnings (15) in the locking nail hole (7) respectively, be nested with tail end hoop (2) on the tail end (5) of marrow inner fixer (8), lid silk (l) is connected with tail end leading screw (3) screw thread; On the tail end (5) of stringer chute (12) U-lag (13) is set, device sight in the U-lag (13).