CN208989094U

CN208989094U - Clavicle elastic internal fixation device

Info

Publication number: CN208989094U
Application number: CN201721519459.8U
Authority: CN
Inventors: 谢志进
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-01-23
Filing date: 2017-11-14
Publication date: 2019-06-18
Anticipated expiration: 2027-11-14

Abstract

The utility model discloses a kind of clavicle elastic internal fixation devices, by steel plate main body and elasticity arm, and attached bouncing plate collectively constitutes on steel plate, after elasticity arm hook end insertion acromion lower section, clavicle can be made to reset downwards by the proximal end of lower laminated steel main body, then decided whether to restore clavicle length by sliding vent according to fracture segment cripetura situation, the bone block at distance folding end passes through far-end locking hole respectively and proximal end lock hole carries out locking fixation, make an entirety, in this way, the stress at folding end is transferred at acromion by elasticity arm, and bouncing plate can then play the role of lifting on control clavicle distal end, stress can be absorbed by the deformation of itself again or stress is dispersed to elasticity arm full section, prevent stress concentration, to finally realize flexible fastening, also the various drawbacks of traditional clavicular hook plate are avoided that.

Description

Clavicle elastic internal fixation device

Technical field

The utility model relates to medical instruments field more particularly to a kind of clavicle elastic internal fixation devices.

Background technique

Distal clavicle fracture dislocation is relatively conventional in clinic, and wherein there are difficult points for the treatment of extremitas acromialis fracture, uses clavicle Common acromion hits pain when Usingclavicular Hook Plate, shoulder mobility is limited, the complication such as sclerotin abrasion under disconnected hook, disconnected plate, acromion, and Then the small bone block in common distal end is not fixed firmly when being treated using clavicle far-end locking steel plate, postoperative folding end cripetura and cannot early stage function The drawbacks such as energy exercise；The fixing means of dislocation of acromioclavicular joint is more, such as uses clavicular hook plate, belt loop steel plate, holdfast system, beak Prominent the methods of screw and Pin fixation, wherein clavicular hook plate is because of the advantages that its technical difficulty is lower, fixation It is the most commonly used, but there are still similar latter problem, and then to there is operating difficulty bigger than normal for other treatment method, be easy to cause secondary damage The problems such as wound, surgical procedure is complicated, and learning curve is long, acromioclavicular joint fine motion function loss and solid failure.

Utility model content

It is easy to cause acromion shock to cause shoulder pain for the prior art, shoulder mobility is limited, the hook that breaks, disconnected plate, under acromion The defects of sclerotin abrasion, acromioclavicular joint fine motion function is lost and fracture surgery rolls over end cripetura, the utility model provides one kind Novel clavicle elastic internal fixation device, the flexible fastening of clavicle is realized by elasticity arm and bouncing plate, is avoided or reduced above-mentioned The appearance of complication, so that shoulder joint function rehabilitation be better achieved.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of clavicle elastic internal fixation device, Including bouncing plate attached in steel plate main body and elasticity arm and steel plate, there are multiple remote locks in the remote area of steel plate main body Determine hole, the nearside in far-end locking hole successively has lag screw hole, sliding vent and proximal end lock hole, has on rear side of steel plate main body Two pieces of bouncing plates, for bouncing plate by bouncing plate fixing screws and Interal fixation, it is bullet that steel plate, which migrates section transition proximally by plate arm, The arm of force.

Described its shape of steel plate main body meets distal section anatomic form in clavicle, and distal end is expanded and protruded to front side, number A far-end locking hole is uniformly distributed in it, and the fixation of distal end folded block is carried out with the use of the lock screw of diameter 2.5mm~3mm.

The lag screw hole is located at the nearside in far-end locking hole, and lag screw ailhead can completely be sunk in hole.

The sliding vent is located at the nearside in lag screw hole, and there is sliding slot in top surface, at this using diameter 3.5mm~ The plain screw of 4mm is fixed, Gu timing screw ailhead can be sunken in sliding slot down.

The proximal end lock hole is located at the nearside of sliding vent, there is 2~3 pieces, and diameter 3.5mm~4mm is used at this Lock screw locked.

The plate arm migrates the proximal end that section is located at steel plate main body, is C-shaped, becomes narrow gradually thicken from the front to the back, and becomes In column.

The elasticity arm migrates section by plate arm and extends, and is integrally located on rear side of steel plate, elasticity arm the initial segment has set Sink, lift and steel plain are in 8 °~15 ° angles on distal end, and the middle section of elasticity arm is cylindrical, and distal end exceeds steel plate main body Outer rim after there are two bending, the skeletal form of acromion is adapted to like " Z " font, the distal end of elasticity arm gradually becomes flat, end circle Profit forms hook end.

The bouncing plate is located at the rear side of distal section in steel plate main body, and two pieces are designed side by side, rearward stretches out, passes through bullet Power piece fixing screws and Interal fixation, bouncing plate are that arc is recessed beyond steel plate upper edge portion, recessed radian and elasticity arm middle section Radian matching.

The utility model has the beneficial effects that firstly, since clavicle distal end occur dislocation of acromioclavicular joint or fracture after, Clavicle distal end or the nearly folding end of fracture upper lift under the action of can be in trapezius muscle, at this moment, when hook end is inserted under acromion and makes steel When plate main body docile clavicle, the stress lifted on clavicle distal end is obtained confrontation by the initial angulation of elasticity arm, interior at this time fixed The stress of device concentrates on elasticity arm the initial segment, and then concentrates below acromion in the intracorporal stress of people, if lower pressure initial at this time The upper lift stress of clavicle can't be fought completely, remaining stress can continue to by bouncing plate to steel plate be fought, this When, bouncing plate absorbs part stress by self-deformation, and the subtle arc that can also cause part upward after elasticity arm stress becomes, This variation tendency can be such that hook end moves in the stress point of acromion, avoid stress and concentrate on sclerotin under acromion, also just can avoid The excessive wear of sclerotin under acromion；Secondly, for distal clavicle fracture, especially comminuted fracture can first pass through sliding and subtract The centrifugation in hole is pressed to avoid the compression trend between folding end bone block, is then consolidated using lock screw technology is this relatively firm Determining mode makes fracture segment become an entirety, to guarantee the stability after the reduction of the fracture, thus can avoid the hair of folding end cripetura It is raw, it can also accomplish postoperative early functional exercise；Furthermore elasticity arm is then passed through by the separation strength that sliding vent generates It is conducted to acromion, the stress of internal fixation device concentrates on the proximal end of elasticity arm Z-shaped bending at this time, passes through this flexible fastening machine System is evenly dispersed the stress of lift and cripetura on clavicle to the full section of elasticity arm, and this addresses the problem traditional hook plates to be easy The problem of disconnected hook, disconnected plate；In addition, acromioclavicular joint is not since elasticity arm and bouncing plate can absorb stress by deformation Can be completely locked by internal fixation device, the fine motion function of acromioclavicular joint is retained, and is also solved the postoperative shoulder lock of traditional hook plate and is closed Save the problem of fine motion function is lost；In addition, being relatively independent of steel plate by the hook end that elasticity arm extends compared with traditional hook plate The insertion position of main body, hook end can avoid occupying Subacromial Space than traditional hook plate more posteriorly, so that postoperative because of acromion Shock causes the problem of shoulder pain to be also resolved.

The utility model is applicable to the various types fracture of clavicle distal end, has to prevent from resetting and loses and retain shoulder lock The effect of joint fine motion function is also applied for the interior fixation of dislocation of acromioclavicular joint.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the top view of the utility model.

Fig. 2 is the side view of the utility model.

Fig. 3 is the oblique top view of the utility model.

Description of symbols

1. steel plate main body；2. proximal end lock hole；3. sliding vent；4. lag screw hole；5. elasticity arm；6. bouncing plate； 7. the bending of elasticity arm distal end；8. bouncing plate fixing screws；9. far-end locking hole；10. elasticity arm the initial segment；11. plate arm migrates section； 12. hook end.

Specific embodiment

As shown in the picture, the present embodiment is a kind of clavicle elastic internal fixation device, and material is with the higher stainless steel of elasticity modulus It is advisable, distinguishes left and right design, including bouncing plate 6 attached on integrally formed steel plate main body 1 and elasticity arm 5 and steel plate, steel 1 shape of plate main body meets distal section anatomic form in clavicle, and distal end is expanded and protruded to front side, and several far-end locking holes 9 are uniformly It is distributed in it, the fixation of distal end folded block is carried out with the use of the lock screw of diameter 2.5mm~3mm；The design of its nearside has pulling force Screw hole 4 can be carried out independently fixing perpendicular to the lag screw of fracture line in it when there are clavicle distal end oblique fracture, be drawn Power screw ailhead can completely be sunk in hole；Sliding vent 3 is located at the nearside in lag screw hole 4, and there is sliding slot in top surface, makes at this It is fixed with the plain screw of diameter 3.5mm~4mm, Gu timing screw ailhead can be sunken in sliding slot down, is carried out in its nearside The existing length of clavicle can be restored and maintain by sliding after depressurizing, the pressure between reduction distal end folded block and in acromioclavicular joint；Proximal end locking Hole 2 is located at the nearside of sliding vent 3, has 2~3 pieces, is locked at this using the lock screw of diameter 3.5mm~4mm；Plate Arm migrates the proximal end that section 11 is located at steel plate main body, is C-shaped, becomes narrow gradually thicken from the front to the back, and tends to column；Elasticity arm 5 Section 11 is migrated by plate arm to extend, is integrally located on rear side of steel plate, and elasticity arm the initial segment 10 has set sinking, lift and steel on distal end Plate plane is in 8 °~15 ° angles, and the middle section of elasticity arm 5 is cylindrical, can reduce the soft tissue irritation of implants, and distal end exceeds There are two bendings 7 after 1 outer rim of steel plate main body, the skeletal form of acromion are adapted to like " Z " font, the distal end of elasticity arm 5 gradually becomes Flat, end is mellow and full, forms hook end 12；Bouncing plate 6 is located at the rear side of distal section in steel plate main body 1, and two pieces are designed side by side, rearward It stretches out, fixed by bouncing plate fixing screws 8 and steel plate main body 1, bouncing plate 6 is arc-shaped recessed beyond steel plate upper edge portion, under Concave arc degree is matched with 5 middle section radian of elasticity arm.

First elasticity arm hook end 12 is slightly tilted below insertion acromion when use, then presses laminated steel proximal end, pass through elasticity arm 5 The initial lower pressure provided can enable clavicle distal end reset downwards, and (lower surging can be by the elasticity arm 5 of different size diameter Realize), the upward displacement of clavicle distal end is fixed temporarily with Allis pincers in sagittal axis direction after being resetted, after merging Ideal position with elasticity arm 5 gently patch bouncing plate 6 be advisable, two pieces of bouncing plates 6 design side by side, can play limitation steel plate on lift become Gesture can be absorbed by the self-deformation of bouncing plate 6 when if there is additional upper lift stress, and can uniformly be divided by elasticity arm 5 It is dissipated to the distal end of steel plate proximal end and elasticity arm 5, stress concentration is avoided, also achieves flexible fastening.If the bone of clavicle distal end End fracture there are cripetura, can be rested the head on by shoulder underlay and carry out sliding decompression to restore clavicle length, thereafter in sliding vent 3 Interior fixing step and traditional hook plate it is almost the same.

Above-described embodiment only is used to further illustrate a kind of clavicle elastic internal fixation device of the utility model, but this is practical new Type is not limited to embodiment, made by the above technical examples according to the technical essence of the present invention any simply to repair Change, equivalent variations and modification, each falls in the protection scope of technical solutions of the utility model.

Claims

1. a kind of clavicle elastic internal fixation device, it is characterised in that: including attached in steel plate main body (1) and elasticity arm (5) and steel plate The bouncing plate (6) of category has multiple far-end locking holes (9), the nearside of far-end locking hole (9) in the remote area of steel plate main body (1) Successively there are lag screw hole (4), sliding vent (3) and proximal end lock hole (2), there are two pieces of elastic force on rear side of steel plate main body (1) Piece (6), bouncing plate (6) migrate section (11) transition proximally by plate arm by bouncing plate fixing screws (8) and Interal fixation, steel plate For elasticity arm (5).

2. clavicle elastic internal fixation device according to claim 1, it is characterised in that: described steel plate main body (1) its shape Meeting distal section anatomic form in clavicle, distal end is expanded and is protruded to front side, and several far-end locking holes (9) are uniformly distributed in it, The fixation of distal end folded block is carried out with the use of the lock screw of diameter 2.5mm~3mm.

3. clavicle elastic internal fixation device according to claim 1, it is characterised in that: the lag screw hole (4) is located at The nearside in far-end locking hole (9), lag screw ailhead can completely be sunk in hole.

4. clavicle elastic internal fixation device according to claim 1, it is characterised in that: the sliding vent (3) is located at There are sliding slot in the nearside in lag screw hole (4), top surface, are fixed at this using the plain screw of diameter 3.5mm~4mm, Gu Timing screw ailhead can be sunken in sliding slot down.

5. clavicle elastic internal fixation device according to claim 1, it is characterised in that: the proximal end lock hole (2) is located at The nearside for sliding vent (3), is had 2~3 pieces, is locked at this using the lock screw of diameter 3.5mm~4mm.

6. clavicle elastic internal fixation device according to claim 1, it is characterised in that: the plate arm migrates section (11) and is located at The proximal end of steel plate main body (1), is C-shaped, becomes narrow gradually thicken from the front to the back, tend to column.

7. clavicle elastic internal fixation device according to claim 1, it is characterised in that: the elasticity arm (5) is moved by plate arm Row section (11) is extended, and is integrally located on rear side of steel plate, and elasticity arm the initial segment (10) has set sinking, and lift and steel plate are flat on distal end Face is in 8 °~15 ° angles, and the middle section of elasticity arm (5) is cylindrical, and distal end is beyond there are two elastic force after the outer rim of steel plate main body Arm distal end bending (7) is adapted to the skeletal form of acromion like " Z " font, and the distal end of elasticity arm gradually becomes flat, and end is mellow and full, shape At hook end (12).

8. clavicle elastic internal fixation device according to claim 1, it is characterised in that: the bouncing plate (6) is located at steel plate The rear side of distal section in main body (1), two pieces are designed side by side, are rearward stretched out, solid by bouncing plate fixing screws (8) and steel plate Fixed, bouncing plate (6) is that arc is recessed beyond steel plate upper edge portion, and recessed radian is matched with elasticity arm (5) middle section radian.