CN203447343U - Proximal humerus T type external fixator - Google Patents
Proximal humerus T type external fixator Download PDFInfo
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- CN203447343U CN203447343U CN201320551284.4U CN201320551284U CN203447343U CN 203447343 U CN203447343 U CN 203447343U CN 201320551284 U CN201320551284 U CN 201320551284U CN 203447343 U CN203447343 U CN 203447343U
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- draw point
- external fixator
- connecting plate
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- connecting rod
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Abstract
A proximal humerus T type external fixator is composed of an external fixator frame, steel needle fixing clamps connected to the external fixator frame, and semi-needles clamped into the steel needle fixing clamps. The external fixator frame is composed of a vertical tubular connecting rod, a transverse arc-shaped multi-hole connecting plate and a locking joint which allows the arc-shaped multi-hole connecting plate to be connected to the upper end of the tubular connecting rod. Each steel needle fixing clamp is composed of a steel needle fixing clamp body A connected to the tubular connecting rod, and a steel needle fixing clamp body B connected to the arc-shaped multi-hole connecting plate, and the number of holes in the arc-shaped multi-hole connecting plate is more than three and is an odd number. The proximal humerus T type external fixator is simple in structure, firm in fixation, beneficial to movement of a wound limb, suitable for simple fracture and complex fracture in proximal humerus fracture, and particularly suitable for treating humerus surgical neck fracture, open facture and infective fracture, and reset and fixiation of proximal humerus fracture can be rapidly achieved.
Description
Technical field
This utility model relates to a kind of bone external fixator that proximal humeral fracture is used for the treatment of.
Background technology
Proximal humeral fracture refers to the fracture that greater tubercle basilar part (surgical neck) is above.The conduction violence of the direct violence of shoulder and humerus all can cause proximal humeral fracture, old and middle-aged patients is because of osteoporosis, slight or moderate external force just can cause proximal humeral fracture, while being more common in walking, fall down, suffering limb abduction lands, external force is common avulsion fracture and the fracture of the humeral head such as conduction upwards, relevant with osteoporosis; Prime of life person patient Duo Yin is subject to high-octane direct violence damage, mostly is comminuted fracture of the humeral head; Child mostly is fracture of surgical neck, and taking second place is epiphyseolisthesis.
During proximal humeral fracture, triangular muscle, biceps brachii m., anconeus longus, coracobrachialis that can cause crossing over joint etc. causes shortened deformity, the strength that the upper and lower flesh of teres minor and ridge of rotation sleeve is greater than subscapularis causes the slight outward turning of near-end, and without muscle, adhere to inside head of humerus, the upper and lower flesh in ridge causes near-end abduction.Because the blood of head of humerus ships from tuberosity place, fracture of the humeral head easily causes head of humerus ischemic necrosis.
Bone is fixed blood fortune destruction little outward, is conducive to the blood fortune of the rear head of humerus of protection fracture.Therefore Ilizarov ring type external fixator, Bastiani unilateral external fixator and AO block form external fixator have successively been developed both at home and abroad.These external fixators, can be for the treatment of proximal humeral fracture, also make some progress, but Ilizarov ring type external fixator has the shortcoming of complex structure, large, the inconvenient suffering limb activity of operation easier, Bastiani unilateral external fixator and AO block form external fixator have one-sided configuration heaviness, it is limited to thread a needle, the reduction of the fracture is difficult and be unfavorable for the shortcoming of suffering limb activity.
Utility model content
The purpose of this utility model is to provide the T-shaped external fixator of a kind of proximal humerus, solve that the bone anchor complex structure that traditional treatment humeral fracture uses is heavy, operation easier is large, thread a needle easily limited, the reduction of the fracture is difficult, the technical problem of inconvenient suffering limb activity.
For achieving the above object, this utility model adopts following technical scheme: the T-shaped external fixator of a kind of proximal humerus, by external fixator support body, be connected to the steel needle fixing clamp on external fixator support body, and half pin being clipped in steel needle fixing clamp forms, it is characterized in that: described external fixator support body is by a vertical tubulose connecting rod, a horizontal arcuated porous connecting plate, and the locking joint device composition that arcuated porous connecting plate is connected to tubulose connecting rod upper end, described steel needle fixing clamp is comprised of the steel needle fixing clamp B that is connected to the steel needle fixing clamp A on tubulose connecting rod and be connected on arcuated porous connecting plate, the number of openings on described arcuated porous connecting plate is more than three, and be odd number.
The bearing pin that described locking joint device is hingedly connected together shangguan section header and ShiShimonoseki section header by a shangguan section header, ShiShimonoseki section header, two locking nuts and one forms, one of described two locking nut be arranged on arcuated porous connecting plate top, another is arranged on the below of arcuated porous connecting plate, described shangguan section header is from the bottom to top through the hole in centre position on arcuated porous connecting plate and be threaded with two locking nuts, and described ShiShimonoseki section header is inserted in the upper end of tubulose connecting rod from top to bottom and is threaded with tubulose connecting rod.
Described steel needle fixing clamp A can be comprised of base, draw point pad, draw point pressure pad and bolt, wherein after screw bolt passes draw point pressure pad and draw point pad, be threaded on base, described tubulose connecting rod is clipped in the connecting rod groove between base and draw point pad, and described half pin is clipped in half pin placing trough A between draw point pad and draw point pressure pad.
Described connecting rod groove can be arranged on base, and described half pin placing trough A can be arranged on draw point pressure pad.
On described base, the side that contacts with draw point pad of base can be provided with anti-slop serrations, or on draw point pad, the side that contacts with base of draw point pad is provided with anti-slop serrations; 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.
Described steel needle fixing clamp B can be comprised of fixed block and attaching nut, described fixed block is provided with threaded connector and half pin placing trough B, threaded connector is by the hole on arcuated porous connecting plate, worn to opposite side and with the attaching nut who is positioned at opposite side and be threaded by a wherein side of arcuated porous connecting plate, and described half pin is clipped between fixed block and arcuated porous connecting plate by half pin placing trough B.
Described half pin placing trough B can each side arrange one at threaded connector.
Compared with prior art the utlity model has following characteristics and beneficial effect:
1, this utility model structure is simplified, fixing stable, be convenient to suffering limb activity, be applicable to Fracture Simple and complicated fracture (according to the outer fixing principle of classification of XHT bone, fracture can be divided into the serious comminuted fracture of Fracture Simple, complicated fracture and dislocation), especially be applicable to treatment fracture of the surgical neek of the humerus, open fracture and infected fracture, can realize fast the reset of proximal humeral fracture with fixing.
2, the overall structure of external fixator support body layout in T shape in this utility model, meets topology requirement, and has increased the safety of operation.
3, this utility model has adopted three dimensional structure, the multidirectional layout of threading a needle of multiple spot, thus fixing stable, more meet the Mechanobiology requirement of the fractures at this position, be more conducive to union of fracture;
4, this utility model has been optimized structure, operates more simple and convenient, and fracture line plane is provided with locking joint device, loosens locking nut, can after the reduction of the fracture, can implement stable fixing to reduction, so convenient, reduction is fixed.
5, after this utility model is threaded a needle and fixed, by attaching nut and bolt, can allow appropriateness to adjust the angle of half pin, to correct a deviation, realize good reset.
5, this utility model is selected half card clothing office, when increasing processing safety, makes again operation more simple and effective.
6, under this utility model Ke Wicresoft condition, implement the reduction of the fracture and fix, the medical treatment damage of avoid to greatest extent fracturing local soft tissue and blood fortune, is conducive to promote knitting and reconstruction, facilitates reduction.
7, this utility model features simple structure is exquisite, has avoided unnecessary connection, and apparatus is placed in upper arm outside, is beneficial to suffering limb activity, is convenient to suffering limb early functional training.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is schematic perspective view of the present utility model.
Fig. 2 is decomposing schematic representation of the present utility model.
Fig. 3 is using state schematic diagram of the present utility model.
Reference numeral: 1-tubulose connecting rod, 2-arcuated porous connecting plate, 3-half pin, 4-shangguan section header, 5-ShiShimonoseki section header, 6-locking nut, 7-bearing pin, 8-fixed block, 9-threaded connector, 10-attaching nut, 11-half pin placing trough A, 12-half pin placing trough B, 13-base, 14-draw point pad, 15-draw point pressure pad, 16-bolt, 17-connecting rod groove.
The specific embodiment
Embodiment is referring to shown in Fig. 1-3, and the T-shaped external fixator of this proximal humerus, by external fixator support body, be connected to the steel needle fixing clamp on external fixator support body and half pin 3 that is clipped in steel needle fixing clamp forms.
Described external fixator support body forms by a vertical tubulose connecting rod 1, horizontal arcuated porous connecting plate 2 and by the locking joint device that arcuated porous connecting plate 2 is connected to tubulose connecting rod 1 upper end.The overall structure of external fixator support body is in T shape.During use, locking joint device is located at fracture line plan-position.
Described steel needle fixing clamp is comprised of the steel needle fixing clamp B that is connected to the steel needle fixing clamp A on tubulose connecting rod 1 and be connected on arcuated porous connecting plate 2.
The number of openings on described arcuated porous connecting plate 2 is more than three, and is odd number, and in the present embodiment, arcuated porous connecting plate 2 is five hole connecting plates.
Described locking joint device is by a shangguan section header 4, ShiShimonoseki section header 5, two locking nuts 6, and a bearing pin that shangguan section header and ShiShimonoseki section header are hingedly connected together 7 forms, 6 one tops that are arranged on arcuated porous connecting plate 2 of described two locking nuts, another is arranged on the below of arcuated porous connecting plate 2, described shangguan section header 4 is from the bottom to top through the hole in centre position on arcuated porous connecting plate 2, and be threaded with two locking nuts 6, described ShiShimonoseki section header 5 is from top to bottom inserted in the upper end of tubulose connecting rod 1, and be threaded with tubulose connecting rod 1.During use, by controlling two locking nuts 6, just can lock or finely tune locking joint device, thus connection angle locked or fine setting tubulose connecting rod 1 and arcuated porous connecting plate 2.
In the present embodiment, steel needle fixing clamp A is comprised of base 13, draw point pad 14, draw point pressure pad 15 and bolt 16, wherein bolt 16 passes successively after draw point pressure pad 15 and draw point pad 14, is threaded on base 13, described tubulose connecting rod 1 is clipped in the connecting rod groove 17 between base 13 and draw point pad 14, and described half pin 3 is clipped in half pin placing trough A11 between draw point pad 14 and draw point pressure pad 15.
In other embodiments, described bolt 16 also can add two nuts with a screw rod and replace, now, base 13, draw point pad 14, draw point pressure pad 15 and two nuts are all enclosed within on screw rod, draw point pad 14 and two nut threads are connected on screw rod simultaneously, described base 13 is clipped between one of them nut and draw point pad 14, and described draw point pressure pad 15 is clipped between another nut and draw point pad 14.During use, by adjustment, clamp the nut of base 13 use, just can control the degree of base 13 and draw point pad 14 clamping tubular connecting rods 1, just can make steel needle fixing clamp A axially carry out the fine setting of position along tubulose connecting rod 1; In addition, by adjustment, clamp the nut of draw point pressure pad 15 use, just can control the degree of draw point pressure pad 15 and draw point pad 14 clamping half pins 3, thus can make half pin 3 along with draw point pressure pad 15 is rotated along tubulose connecting rod 1, thus finely tune the angle of half pin 3.
In the present embodiment, connecting rod groove 17 is arranged on base 13, and described half pin placing trough A11 is arranged on draw point pressure pad 15.
On described base 13, the side that contacts with draw point pad 14 of base 13 is provided with anti-slop serrations, or on draw point pad 14, the side that contacts with base 13 of draw point pad 14 is provided with anti-slop serrations; On described draw point pressure pad 15, the side that contacts with draw point pad 14 of draw point pressure pad 15 is provided with anti-slop serrations, or on draw point pad 14, the side that contacts with draw point pressure pad 15 of draw point pad 14 is provided with anti-slop serrations.The object that anti-slop serrations is set be can be more favourable locking steel needle fixing clamp A.
In the present embodiment, steel needle fixing clamp B is comprised of fixed block 8 and attaching nut 10, described fixed block 8 is provided with threaded connector 9 and half pin placing trough B12, threaded connector 9 is by the hole on arcuated porous connecting plate 2, worn to opposite side and with the attaching nut 9 who is positioned at opposite side and be threaded by a wherein side of arcuated porous connecting plate 2, and described half pin 3 is clipped between fixed block 8 and arcuated porous connecting plate 2 by half pin placing trough B12.Described half pin placing trough B12 is each side provided with one at threaded connector 9, and the fixed block 8 that is provided with two and half pin placing trough B12 is named again partially large.In other embodiments, also can adopt the fixed block 8 that is only provided with one and half pin placing trough B12, the fixed block 8 that is only provided with one and half pin placing trough B12 is named again little partially.
When fracture near-end is threaded a needle, half pin adopts without screw thread half pin, and diameter 3mm, can directly penetrate humerus.Near-end entry point is position before the outer lateral deviation of greater tubercle and partially, as bad in fracture end plane contact, has cripetura tendency, do not want parallel inserting needle, but thread a needle and 65 ° of left and right of humeral shaft angulation, and with after elbow joint X direction, become 20 °～40 °, deeply reach 5～10mm under head of humerus cartilage.Because of when operation positions that adopt upper limb to be put in front more, upper arm 90 ° of inward turnings now, so should be backward 110 ° while threading a needle～120 °.
When fracture far-end is threaded a needle, half pin adopts screw thread half pin.In the time of outside humerus, about triangular muscle stop below first penetrates one piece of screw thread half pin, temporary fixed with steel needle fixing clamp and tubulose connecting rod.When humeral shaft astragalus broken line 2cm place, near tubulose connecting rod, penetrate second piece of screw thread half pin of far-end, and temporary fixed with tubulose connecting rod.
Referring to Fig. 3, the work process of the present embodiment is as follows:
1, after the basic reset of fracture, on the edge hole at five connecting plate two ends, hole, insert greatly partially respectively, with attaching nut, will greatly partially be fixed on five hole connecting plates.Half cushion, in large half inclined to one side pin placing trough B12, is tightened to attaching nut after determining the angle of half pin, will partially be locked on five hole connecting plates with half pin greatly.
2, utilize locking joint device to connect five hole connecting plates and tubulose connecting rod.
3, on tubulose connecting rod, penetrate respectively base, with bolt series winding draw point pressure pad and draw point pad, and be screwed on the base of single cavity.Half pin is penetrated in half pin placing trough A11 on steel needle fixing clamp A, make half pin become 90 degree vertical angles with tubulose connecting rod, tight a bolt afterwards, half pin and steel needle fixing clamp A are locked on tubulose connecting rod.
After whole fixing, X-ray examination is confirmed to reset after satisfaction, locking locking nut, attaching nut and bolt.Dissatisfied locking nut, attaching nut or the bolt that also can loosen region of interest if reset, retightens after reduction is satisfied again.
Claims (8)
1. the T-shaped external fixator of proximal humerus, by external fixator support body, be connected to the steel needle fixing clamp on external fixator support body, and half pin (3) being clipped in steel needle fixing clamp forms, it is characterized in that: described external fixator support body is by a vertical tubulose connecting rod (1), a horizontal arcuated porous connecting plate (2), and the locking joint device composition that arcuated porous connecting plate (2) is connected to tubulose connecting rod (1) upper end, described steel needle fixing clamp is comprised of the steel needle fixing clamp B that is connected to the steel needle fixing clamp A on tubulose connecting rod (1) and be connected on arcuated porous connecting plate (2), the number of openings on described arcuated porous connecting plate (2) is more than three, and be odd number.
2. the T-shaped external fixator of proximal humerus according to claim 1, it is characterized in that: described locking joint device is by a shangguan section header (4), ShiShimonoseki section header (5), two locking nuts (6), and a bearing pin (7) that shangguan section header and ShiShimonoseki section header are hingedly connected together forms, (6) tops that are arranged on arcuated porous connecting plate (2) of described two locking nuts, another is arranged on the below of arcuated porous connecting plate (2), described shangguan section header (4) is from the bottom to top through the hole in centre position on arcuated porous connecting plate (2), and be threaded with two locking nuts (6), described ShiShimonoseki section header (5) is from top to bottom inserted in the upper end of tubulose connecting rod (1), and be threaded with tubulose connecting rod (1).
3. the T-shaped external fixator of proximal humerus according to claim 1, it is characterized in that: described steel needle fixing clamp A is by base (13), draw point pad (14), draw point pressure pad (15) and bolt (16) form, wherein bolt (16) is successively through after draw point pressure pad (15) and draw point pad (14), be threaded on base (13), described tubulose connecting rod (1) is clipped in the connecting rod groove (17) between base (13) and draw point pad (14), described half pin (3) is clipped in half pin placing trough A(11 between draw point pad (14) and draw point pressure pad (15)) in.
4. the T-shaped external fixator of proximal humerus according to claim 3, is characterized in that: it is upper that described connecting rod groove (17) is arranged on base (13), described half pin placing trough A(11) be arranged on draw point pressure pad (15).
5. the T-shaped external fixator of proximal humerus according to claim 3, it is characterized in that: described base (13) is upper, base (13) is provided with anti-slop serrations with the side that draw point pad (14) contacts, or draw point pad (14) is upper, draw point pad (14) is provided with anti-slop serrations with the side that base (13) contacts.
6. the T-shaped external fixator of proximal humerus according to claim 3, it is characterized in that: described draw point pressure pad (15) is upper, draw point pressure pad (15) is provided with anti-slop serrations with the side that draw point pad (14) contacts, or draw point pad (14) is upper, draw point pad (14) is provided with anti-slop serrations with the side that draw point pressure pad (15) contacts.
7. the T-shaped external fixator of proximal humerus according to claim 1, it is characterized in that: described steel needle fixing clamp B is comprised of fixed block (8) and attaching nut (10), described fixed block (8) is provided with threaded connector (9) and half pin placing trough B(12), threaded connector (9) is by the hole on arcuated porous connecting plate (2), a wherein side by arcuated porous connecting plate (2) is worn to opposite side, and be threaded with the attaching nut (9) who is positioned at opposite side, described half pin (3) is by half pin placing trough B(12) be clipped between fixed block (8) and arcuated porous connecting plate (2).
8. the T-shaped external fixator of proximal humerus according to claim 7, is characterized in that: described half pin placing trough B(12) at threaded connector (9), be each side provided with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551284.4U CN203447343U (en) | 2013-09-06 | 2013-09-06 | Proximal humerus T type external fixator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551284.4U CN203447343U (en) | 2013-09-06 | 2013-09-06 | Proximal humerus T type external fixator |
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| CN203447343U true CN203447343U (en) | 2014-02-26 |
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| CN201320551284.4U Expired - Fee Related CN203447343U (en) | 2013-09-06 | 2013-09-06 | Proximal humerus T type external fixator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417278A (en) * | 2013-09-06 | 2013-12-04 | 江苏广济医疗科技有限公司 | Proximal humerus T-shaped outer fixator |
| CN104382643A (en) * | 2014-12-12 | 2015-03-04 | 陈伟 | Kirschner wire positioner for minimally invasive fixation for fracture |
| CN108542458A (en) * | 2018-05-25 | 2018-09-18 | 山东航维骨科医疗器械股份有限公司 | It disputes over trifles frame |
| CN111803195A (en) * | 2020-08-10 | 2020-10-23 | 武汉苓桂医疗科技有限公司 | Non-straddle type external fixator for treating distal radius fracture |
-
2013
- 2013-09-06 CN CN201320551284.4U patent/CN203447343U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103417278A (en) * | 2013-09-06 | 2013-12-04 | 江苏广济医疗科技有限公司 | Proximal humerus T-shaped outer fixator |
| CN103417278B (en) * | 2013-09-06 | 2015-06-03 | 江苏广济医疗科技有限公司 | Proximal humerus T-shaped outer fixator |
| CN104382643A (en) * | 2014-12-12 | 2015-03-04 | 陈伟 | Kirschner wire positioner for minimally invasive fixation for fracture |
| CN108542458A (en) * | 2018-05-25 | 2018-09-18 | 山东航维骨科医疗器械股份有限公司 | It disputes over trifles frame |
| CN111803195A (en) * | 2020-08-10 | 2020-10-23 | 武汉苓桂医疗科技有限公司 | Non-straddle type external fixator for treating distal radius fracture |
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| 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 |
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| EXPY | Termination of patent right or utility model |