CN203447342U - Clavicle external fixing device with locking joint - Google Patents
Clavicle external fixing device with locking joint Download PDFInfo
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- CN203447342U CN203447342U CN201320551275.5U CN201320551275U CN203447342U CN 203447342 U CN203447342 U CN 203447342U CN 201320551275 U CN201320551275 U CN 201320551275U CN 203447342 U CN203447342 U CN 203447342U
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- locking joint
- draw point
- locking
- joint
- clavicle
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Abstract
A clavicle external fixing device with a locking joint is composed of an external fixing device frame body, a steel needle fixing clamp and a threaded half needle, wherein the steel needle fixing clamp is connected to the external fixing device frame body, and the threaded half needle is clamped in the steel needle fixing clamp. The external fixing device frame body is composed of two threaded connecting rods and the locking joint, wherein the two threaded connecting rods are hinged and connected together through the locking joint. The locking joint is composed of a locking joint portion A, a locking joint portion B and an adjusting bolt, wherein one end of the locking joint portion A is provided with an internal threaded pipe which is used for being connected with the threaded connecting rod, the other end of the locking joint portion A is provided with a hinge hole, one end of the locking joint portion B is provided with an internal threaded pipe which is used for being connected with the threaded connecting rod, the other end of the locking joint portion B is provided with a threaded hole, and the adjusting bolt is connected into the threaded hole in the locking joint portion B in a threaded mode after penetrating through the hinge hole in the locking joint portion A. According to the clavicle external fixing device with the locking joint, the structure form of the two threaded connecting rods and the locking joint is adopted and conforms to the characteristics of the clavicle anatomy and the characteristics of the mechanics, and therefore the overall structure can better meet the requirements of the clavicle anatomy.
Description
Technical field
This utility model relates to a kind of bone external fixator that clavicular fracture is used for the treatment of.
Background technology
Clavicle crane span structure, between breastbone and acromion, is the support of unique connection pectoral girdle and trunk, key compared with thin and crooked, easily suffers external force and fractures.Clavicular fracture can be divided into for transverse fracture, oblique fracture or comminuted fracture, and the fracture incidence rate of clavicle accounts for 5%～10% of whole body fracture.
Clavicle is a long S shape tubular bone, is fine and close alveolate texture, there is no obvious pulp cavity.External extremity of clavicle backward bending is spill, inner side is semi-convex to front side, outer 1/3 cross section is flat, interior 1/3 approximate prismatic, in 1/3 be the handing-over position of dividing a word with a hyphen at the end of a line at inside and outside two ends, diameter is minimum, only having subclavius and thin layer pectoralis major aponeurosis (aponeuroses) to adhere to, and be in the intersection of two contrary arc convex, is the mechanics weak spot of clavicle, when axial load acts on crooked clavicle, can form a scissors stress, in 1/3 place easily cause fracture.
The bone anchor that existing treatment clavicular fracture is used is generally to adopt the one-sided single pole configuration of AO, this bone anchor does not meet clavicle anatomy and mechanics feature, lack fit, often cause puncture needle resetting difficulty, time and cause operative failure or fixing unstable, even cause the damage of nervus vasculairs under clavicle.
Utility model content
The purpose of this utility model is to provide the clavicle external fixator in a kind of locking joint, solve bone anchor puncture needle resetting difficulty that traditional treatment clavicular fracture uses, the fixing unstable and technical problem that easily causes blood vessel nerve injury under clavicle.
For achieving the above object, this utility model adopts following technical scheme: the clavicle external fixator in a kind of locking joint, by external fixator support body, be connected to the steel needle fixing clamp on external fixator support body and screw thread half pin that is clipped in steel needle fixing clamp forms, it is characterized in that: by two whorl brace rods, the locking joint together with two whorl brace rods are hingedly connected to forms described external fixator support body.
Described locking joint forms by locking joint A portion, locking joint B portion and adjusting bolt, one end of described locking joint A portion is that riffled tube, the other end that is connected use with whorl brace rod is provided with hinge hole, one end of described locking joint B portion is that riffled tube, the other end that is connected use with whorl brace rod is provided with screwed hole, and described adjusting bolt is passed after the hinge hole in locking joint A portion, is threaded in the screwed hole in locking joint B portion.
On two described whorl brace rods, can respectively be connected with two steel needle fixing clamps.
Described steel needle fixing clamp is comprised of locking nut, draw point pressure pad and draw point pad, wherein locking nut and draw point pressure pad are threaded on whorl brace rod, draw point pad be enclosed within on whorl brace rod and be clipped in locking nut and draw point pressure pad between, described screw thread half pin is clipped in the screw thread half pin placing trough between draw point pressure pad and draw point pad.
Described screw thread half pin placing trough can be arranged on draw point pressure pad.
On described draw point pressure pad, the side that contacts with draw point pad of draw point pressure pad can be provided with anti-slop serrations, or on draw point pad, the side that contacts with draw point pressure pad of draw point pad is provided with anti-slop serrations.
Compared with prior art the utlity model has following characteristics and beneficial effect:
1, the reset that this utility model can be realized clavicular fracture position fast, with fixing, is particularly useful for 1/3 fracture in clavicle.
2, this utility model adopts two whorl brace rods to add the version of locking joint, meets clavicle anatomy and mechanics feature, can make overall structure more meet the anatomy requirement of clavicle; The draw point diameter of overall structure of the present utility model, draw point layout and appropriateness, all meets the environmental requirement of union of fracture mechanics.
3, this utility model has been optimized the structure of steel needle fixing clamp, adopted and be with female steel needle fixing clamp, be threaded with whorl brace rod, by regulating steel needle fixing clamp, can control very easily setting position and the use angle of half pin, so increased by half pin dexterity, made clavicle external fixator more simple and effective.
4, the locking joint in this utility model can regulate the connection angle of two whorl brace rods, conveniently reduction is fixed.
5, this utility model is convenient to accurately locate when threading a needle, reduce and the blood avoiding causing because threading a needle for and nerve injury, thread a needle fixing after, locking joint can allow appropriateness adjustment, to realize optimal reset.
6, this utility model structure is portable and smart, facilitates clinical manipulation, and the treatment phase is convenient to the incidence activity of suffering limb, can be convenient to carry out in early days functional exercise.
7, this utility model configuration is reasonable, convenient operation while using in operation, realize the fixing requirement of enforcement fracture closed reduction under Liao Wicresoft condition, avoided to greatest extent the damage once again of fracture local soft tissue and blood fortune, be conducive to promote that bone is rebuild, healing, can meet clavicular fracture reduction and fix.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is using state schematic diagram of the present utility model.
Fig. 2 is decomposing schematic representation of the present utility model.
Fig. 3 is the schematic diagram in locking joint.
Reference numeral: 1-whorl brace rod, 2-locking joint, 3-screw thread half pin, 4-locking joint A portion, 5-locking joint B portion, 6-adjusting bolt, 7-hinge hole, 8-screwed hole, 9-locking nut, 10-draw point pressure pad, 11-draw point pad, 12-screw thread half pin placing trough.
The specific embodiment
Embodiment is referring to shown in Fig. 1-3, and the clavicle external fixator in this locking joint, by external fixator support body, be connected to the steel needle fixing clamp on external fixator support body and screw thread half pin 3 that is clipped in steel needle fixing clamp forms.
By two whorl brace rods 1, the locking joint 2 together with two whorl brace rods are hingedly connected to forms described external fixator support body.In two described whorl brace rods, near heart be interior (closely) side whorl brace rod, away from (far) side joint whorl brace rod outward that cries of heart.Described locking joint 2 is comprised of locking joint A portion 4, locking joint B portion 5 and adjusting bolt 6, one end of described locking joint A portion 4 is that riffled tube, the other end that is connected use with whorl brace rod is provided with hinge hole 7, one end of described locking joint B portion 5 is that riffled tube, the other end that is connected use with whorl brace rod is provided with screwed hole 8, and described adjusting bolt 6 is passed after the hinge hole 7 in locking joint A portion 4, is threaded in the screwed hole 8 in locking joint B portion 5.
The reduction of the fracture, under relaxation state, can be carried out in locking joint 2, after the reduction of the fracture, and locking locking joint, this utility model can carry out stable fixingly to the clavicle of having fractured.
In the present embodiment, on two whorl brace rods, be respectively connected with two steel needle fixing clamps.Steel needle fixing clamp is comprised of locking nut 9, draw point pressure pad 10 and draw point pad 11, wherein locking nut 9 and draw point pressure pad 10 are threaded on whorl brace rod 1, draw point pad 11 be enclosed within on whorl brace rod 1 and be clipped in locking nut 9 and draw point pressure pad 10 between, described screw thread half pin is clipped in the screw thread half pin placing trough 12 between draw point pressure pad 10 and draw point pad 11.In the present embodiment, screw thread half pin placing trough 12 is arranged on draw point pressure pad 10.
In other embodiments, also can adopt the steel needle fixing clamp of other version, so long as be threaded in that whorl brace rod (can regulate like this fixed position of steel needle fixing clamp) is upper, the angle that can regulate screw thread half pin 3 simultaneously all right.
On described draw point pressure pad 10, the side that contacts with draw point pad 11 of draw point pressure pad 10 is provided with anti-slop serrations, or on draw point pad 11, the side that contacts with draw point pressure pad 10 of draw point pad 11 is provided with anti-slop serrations.The object that anti-slop serrations is set be can be more favourable locking steel needle fixing clamp.
During use, draw point pressure pad is screwed on whorl brace rod, half pin is put into the screw thread half pin placing trough to steel needle fixing clamp, keep half pin to become 90 degree vertical with whorl brace rod.Again draw point pad is pierced into whorl brace rod, clamp screw thread half pin, be screwed into afterwards locking nut, screw thread half pin is clamped between draw point pad and draw point pressure pad.
One end of a whorl brace rod is screwed in the riffled tube of locking joint A portion, one end of another root whorl brace rod is screwed in the riffled tube of locking joint B portion.
The hinge hole 7 of locking joint A portion is overlapping with the screwed hole 8 of locking joint B portion, insert adjusting bolt and tighten fixing.Adjusting bolt will become 90 degree vertical with whorl brace rod, and parallel with screw thread half pin.
Use the present embodiment to treat: 1, at the outboard end of clavicle, be 90 °, at 45 ° with the side of limbs with the whole axis of clavicle, wear screw thread half pin of one piece of diameter 3mm, in clavicle proximal end, be 90 °, at 45 ° with the side of limbs with the whole axis of clavicle, then wear screw thread half pin of one piece of diameter 3mm, simultaneously, steel needle fixing clamp is arranged on whorl brace rod, and by locking joint, inside thread connecting rod, outside screw connecting rod is coupled together.2, put on screw thread half pin of far-end and near-end, with steel needle fixing clamp, screw thread half pin is fixed on whorl brace rod, and utilize screw thread half pin to make fracture reduction satisfied, if need to carry out anatomical reduction, can implement after anatomical reduction, to tighten under little otch the locking nut on steel needle fixing clamp.3,, after the reduction of the fracture, at the far and near section of clavicular fracture, close fracture line 1cm place, respectively wear screw thread half pin of one piece of diameter 3mm, and be fixed on whorl brace rod.4, thread a needle fixing completely, suitably adjust locking joint, determine the best angle of the reduction of the fracture, tighten the adjusting bolt on locking joint.
The step of threading a needle of the present embodiment is replacing and the continuous process of threading a needle of " resetting-thread a needle-fixing-reset ", and basic operational steps is as follows.
1. tentatively reset.Patient gets dorsal position, and a side direction is good for side, pads the foam-rubber cushion of a high about 10cm between two scapulas of back, and shirtfront projection, the two shoulder back ofs the body are stretched, and makes clavicular fracture reach basic and naturally resets.
2. clavicle is threaded a needle.(1) external extremity of clavicle is threaded a needle: at the outboard end of clavicle, be 90 °, at 45 ° with the side of limbs with the whole axis of clavicle, respectively wear screw thread half pin of one piece of diameter 3mm.(2) clavicle proximal end is threaded a needle: with external extremity of clavicle, thread a needle.
3. reset and thread a needle.(1) reset and fix: put on after proximal threads half pin far away, with steel needle fixing clamp, screw thread half pin is fixed on whorl brace rod substantially, and utilize screw thread half pin to make fracture reduction satisfied.If need to carry out anatomical reduction, can implement after anatomical reduction, to lock under little otch the set bolt on steel needle fixing clamp.(2) thread a needle fixing: after the reduction of the fracture, in the far and near section of fracture, respectively wear screw thread half pin of one piece of diameter 3mm near fracture line 1cm place, and be fixed on whorl brace rod.
4. whole fixing.(1) satisfaction of the lower confirmation of the perspective reduction of the fracture how, as dissatisfied, should again reset, fixing after satisfaction.(2) check that whether position of the present utility model oppresses skin or affect head movement, should readjust fixing if influential.(3) how activity shoulder joint, observe fixing stability, if particularly will confirm, whether screw thread half pin runs through offside cortex, finds to have unstable key element, adjust in time, retightens.(4) check and have or not screw thread half pin compressing skin, if there is skin compressing, should subtracts and open, and sew up the incision.(5) carry out comprehensive assessment, confirm errorless rear wrapping pin hole, application triangular bandage suspension forearm.
5. when fracture reaches after bony union standard, the broken ends of fractured bone is without tenderness and abnormal movement, i.e. dismountable this utility model.
Claims (6)
1. the clavicle external fixator in a locking joint, by external fixator support body, be connected to the steel needle fixing clamp on external fixator support body and screw thread half pin (3) that is clipped in steel needle fixing clamp forms, it is characterized in that: described external fixator support body is comprised of two whorl brace rods (1) and locking joint (2) that two whorl brace rods are hingedly connected to together.
2. the clavicle external fixator in locking according to claim 1 joint, it is characterized in that: described locking joint (2) is by locking joint A portion (4), locking joint B portion (5) and adjusting bolt (6) form, one end of described locking joint A portion (4) is to be connected the riffled tube of use with whorl brace rod, the other end is provided with hinge hole (7), one end of described locking joint B portion (5) is to be connected the riffled tube of use with whorl brace rod, the other end is provided with screwed hole (8), described adjusting bolt (6) is passed after the hinge hole (7) in locking joint A portion (4), be threaded in the screwed hole (8) in locking joint B portion (5).
3. the clavicle external fixator in locking according to claim 1 joint, is characterized in that: on described two whorl brace rods (1), be respectively connected with two steel needle fixing clamps.
4. the clavicle external fixator in locking according to claim 1 joint, it is characterized in that: described steel needle fixing clamp is comprised of locking nut (9), draw point pressure pad (10) and draw point pad (11), wherein locking nut (9) and draw point pressure pad (10) are threaded on whorl brace rod (1), draw point pad (11) is enclosed within whorl brace rod (1) above and is clipped between locking nut (9) and draw point pressure pad (10), and described screw thread half pin is clipped in the screw thread half pin placing trough (12) between draw point pressure pad (10) and draw point pad (11).
5. the clavicle external fixator in locking according to claim 4 joint, is characterized in that: described screw thread half pin placing trough (12) is arranged on draw point pressure pad (10).
6. the clavicle external fixator in locking according to claim 4 joint, it is characterized in that: described draw point pressure pad (10) is upper, draw point pressure pad (10) is provided with anti-slop serrations with the side that draw point pad (11) contacts, or draw point pad (11) is upper, draw point pad (11) is provided with anti-slop serrations with the side that draw point pressure pad (10) contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551275.5U CN203447342U (en) | 2013-09-06 | 2013-09-06 | Clavicle external fixing device with locking joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551275.5U CN203447342U (en) | 2013-09-06 | 2013-09-06 | Clavicle external fixing device with locking joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203447342U true CN203447342U (en) | 2014-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320551275.5U Expired - Fee Related CN203447342U (en) | 2013-09-06 | 2013-09-06 | Clavicle external fixing device with locking joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203447342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445836A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Outer collarbone fixator with locking joint |
-
2013
- 2013-09-06 CN CN201320551275.5U patent/CN203447342U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445836A (en) * | 2013-09-06 | 2013-12-18 | 江苏广济医疗科技有限公司 | Outer collarbone fixator with locking joint |
| CN103445836B (en) * | 2013-09-06 | 2015-09-23 | 江苏广济医疗科技有限公司 | The clavicle external fixator in locking joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20150906 |
|
| EXPY | Termination of patent right or utility model |