CN103300956B - Non-invasive wrist trans-articular external fixator - Google Patents
Non-invasive wrist trans-articular external fixator Download PDFInfo
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- CN103300956B CN103300956B CN201310229150.5A CN201310229150A CN103300956B CN 103300956 B CN103300956 B CN 103300956B CN 201310229150 A CN201310229150 A CN 201310229150A CN 103300956 B CN103300956 B CN 103300956B
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- fixing head
- governor motion
- metacarpus
- adjusting rod
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Abstract
The invention provides a non-invasive wrist trans-articular external fixator which comprises an arm fixing plate, a palm fixing plate and a regulating mechanism, wherein the palm fixing plate is attached to a palm and enables fingers to be exposed out; the regulating mechanism is connected with the arm fixing plate and the palm fixing plate; the regulating mechanism comprises a first regulating mechanism and a second regulating mechanism; the first regulating mechanism is connected with the palm fixing plate and the arm fixing plate on one side of the palm back and the length and the angle of the first regulating mechanism can be regulated; and the second regulating mechanism is connected with the palm fixing plate and the arm fixing plate on the other sides and the length of the second regulating mechanism can be regulated.
Description
Technical field
The present invention relates to technical field of medical instruments, specifically a kind of non-invasive wrist trans-articular external fixator.
Background technology
Radius far-end fracture refers to the cancellous bone fracture be positioned at apart from radiocarpal joint face 2.5 ~ 3cm.Radial cortical bone divides a word with a hyphen at the end of a line portion with distal part to spongy bone, for dissecting weakness, once suffer external force, easily fractures.Radius far-end fracture is common, accounts for 1/6 of whole body fracture sum.Carpal joint is the joint that in human body, structure is the most complicated, is also the important joint that general activity frequency is the highest.Radius far-end fracture damage mechanisms is complicated, and classification of fracture is various, and Therapeutic Method is flexible.If malpractice, easily cause carpal joint chronic pain and stiff, have a strong impact on the function of hand, bring inconvenience to patient.After unstability radius far-end fracture is often referred to closed reduction fracture, the good para-position of distal radius and the fracture to line cannot be maintained with Gypsum Fibrosum or clamping plate, its index comprise distal radius dorsal part pulverize, multiple through ossa articularia folded block, the cripetura of radius length more than 2mm, distal aspect of the radius to dorsal part angulation more than 20, to merge ulnar fracture and distal radioulnar ioint unstable etc.Old people often merges serious osteoporosis, even low-yield damage also can cause distal radius unstable fracture; High energy trauma causes comminuted fracture of distal radius usually, and surrounding soft tissue is seriously impaired.Often can not maintain reset with plaster slab or Boards wall after this type fracture manual reduction, and occur radial shortening and fracture redisplacement, finally cause malunion of fracture, wrist joint function obstacle.Many doctors adopt the method for internal fixtion in recent years.Wrist is dissected complicated, and unstable fracture is many comparatively to be pulverized, and morbidity mostly is old people, osteoporosis, and general steel plate is many can not be effectively fixing, and locking steel plate is expensive, and technical operation is complicated, all very high to the requirement of the technology and equipment of doctor.There is scholar to think, after utilizing ligament reduction principle reseting fracture, maintain with exter-nal fixer the prefered method that countertraction is fixedly treatment unstability radius far-end fracture.But also for there being wound to operate, also higher requirement is had to equipment and technology, External fixation screw is inserted process and radial nerve,superficial damage is likely occurred or embedding folder and External fixation screw run through tendon or muscle, postoperatively occurs the complication such as pin track infection, the iatrogenic fracture of second metacarpal bone.
Due to the particularity of Wrist fracture on Pathophysiology and biomechanics, make it treat becomes a difficult problem of orthopaedics and tranmstology always, and the malunion of Wrist fracture, chronic pain, ankylosis are still ubiquitous complication.Seek a kind of noinvasive, holder effective, easy and simple to handle.
Summary of the invention
Technical assignment of the present invention solves the deficiencies in the prior art, provides a kind of non-invasive wrist trans-articular external fixator.
Technical scheme of the present invention realizes in the following manner, this a kind of non-invasive wrist trans-articular external fixator, comprise arm fixing head, be attached on palm and expose the governor motion of the metacarpus fixing head of finger, arm portions fixing head and metacarpus fixing head, described governor motion comprise connect palm back of the body side metacarpus fixing head with arm fixing head and the first governor motion of adjustable length and angle, the metacarpus fixing head being connected other side and arm fixing head and length-adjustable second governor motion.
The metacarpus fixing head on the arm fixing head be placed on arm, fixing palm is designed with in technique scheme, the two connects adjustment by governor motion, and then completing carpal fixing, the wherein governor motion adjustable length at the back of the hand place, ensures the needs of wrist fixed position; Other governor motion is then collaborative to carpal traction or pressurization, and then effectively fixes carpal joint.
As preferably, described first governor motion comprises length-adjustable adjusting rod, connecting rod, one end of this adjusting rod is provided with connecting rod by the lateral surface of universal joint arm portions fixing head, the other end by swivel socket, and described connecting rod is arranged on the lateral surface of metacarpus fixing head.In this technical scheme, universal joint ensure that the adjustable angle of adjusting rod, and the setting of swivel ensure that connecting rod regulates in certain angle, ensures regulating effect, and connecting rod can make length adjustment along swivel simultaneously, and then it is fixing to complete better traction.
Further, in described first governor motion, connecting rod can coordinate adjusting rod to form 90 ~ 180 degree of angles along swivel.This angle refers to the angle towards the back of the hand formed between connecting rod and adjusting rod, adopts this angle to be because when fracture appears in human body wrist, its best traction angle is above-mentioned angle.
As preferably, described second governor motion comprises length-adjustable adjusting rod, the lateral surface of two ends respectively by universal joint arm portions fixing head of this adjusting rod and the lateral surface of metacarpus fixing head.This second governor motion is mainly used in carrying out pressurization traction to wrist.
As preferably, the positive backward leading screw that described adjusting rod is referred to length-adjustable expansion link or is socketed by regulating sleeve, when adjusting rod is the positive backward leading screw of band regulating sleeve, regulating sleeve thread bush is connected on the relative inner end of positive backward leading screw.In general design, select positive backward leading screw in the majority, this is because positive backward leading screw is connected with regulating sleeve by screw thread, fixing comparatively firm, not easily occur loosening, consolidation effect and regulating effect are all relatively good.
As preferably, fixing head is anatomical form thermoplastic plate, and by binding strip elasticity constraint pressurization between fixing head, fixing head evenly offers air-vent, and fixing head here refers to above-mentioned arm fixing head and metacarpus fixing head.This technical scheme is adopted to be consider that different patient's arm thicknesses differs, and this arm fixing head just goes for various arm, practical, the air-vent that arm is offered is for the fixing situation of long-time wrist, avoids the position be fixed to occur the situations such as erythema, skin discomfort because of airtight for a long time.
As preferably, the medial surface of described arm fixing head is provided with breathable viscosity liner.Adopt this viscosity liner that arm fixing head can be made to stick on arm to be more prone to.
As preferably, the medial surface of described metacarpus fixing head is provided with breathable viscosity liner.Adopt this viscosity liner that metacarpus fixing head can be made to stick on palm to be more prone to.
The beneficial effect that the present invention is compared with prior art produced is:
A kind of non-invasive wrist trans-articular external fixator of the present invention has that structure is simple, easy to use, the feature such as be skillfully constructed, and by designing the thermoplastic plate of anatomical form, can make forearm and hand bump contact, uniform stressed; Add viscosity liner, further increase the power of being adhered fixed, the shearing that the distraction force that dispersion traction produces effectively produces with the fixing displacement fracture of antagonism; Fixing head is fixed with binding strip, can adjust elasticity at any time, and universal joint and adjusting rod all can hand operations, convenient adjustment pull strength and fixed angle, can fixedly changing power into by static(al) to fix simultaneously, when maintaining fracture stabilization, being convenient to exercise of joint function as early as possible; Fixing head there is air-vent, when can reduce long, fixes the sense of discomfort of skin, applied widely, be easy to promote.
Accompanying drawing explanation
Accompanying drawing 1 is the Facad structure schematic diagram of the present invention when using.
Accompanying drawing 2 is the present invention's structure schematic diagrams when using.
Accompanying drawing 3 is arm fixing head generalized sections of the present invention.
Accompanying drawing 4 is metacarpus fixing head generalized sections of the present invention.
Labelling in accompanying drawing represents respectively:
1, air-vent, 2, arm fixing head, 3, universal joint, 4, regulating sleeve, 5, positive backward leading screw, 6, connecting rod, 7, metacarpus fixing head, 8, swivel, 9, binding strip, 10, viscosity liner.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of non-invasive wrist trans-articular external fixator of the present invention is described in detail below.
As shown in accompanying drawing 1, Fig. 2, a kind of non-invasive wrist trans-articular external fixator is now provided, comprise arm fixing head 2, be attached on palm and expose the governor motion of the metacarpus fixing head 7 of finger, arm portions fixing head 2 and metacarpus fixing head 7, described governor motion comprise connect palm back of the body side metacarpus fixing head 7 with arm fixing head 2 and the first governor motion of adjustable length and angle, the metacarpus fixing head 7 being connected other side and arm fixing head 2 and length-adjustable second governor motion.
Described first governor motion comprises length-adjustable adjusting rod, connecting rod 6, one end of this adjusting rod is provided with connecting rod 6 by the lateral surface of universal joint 3 arm portions fixing head 2, the other end by swivel 8 socket, and described connecting rod 6 is arranged on the lateral surface of metacarpus fixing head 7.
In described first governor motion, connecting rod 6 can coordinate adjusting rod to form 90 ~ 180 degree of angles along swivel 8.
Described second governor motion comprises length-adjustable adjusting rod, the lateral surface of two ends respectively by universal joint 3 arm portions fixing head 2 of this adjusting rod and the lateral surface of metacarpus fixing head 7.
The positive backward leading screw 5 that described adjusting rod is referred to length-adjustable expansion link or is socketed by regulating sleeve 4, when adjusting rod is the positive backward leading screw 5 of band regulating sleeve 4, regulating sleeve 4 thread bush is connected on the relative inner end of positive backward leading screw 5.
Fixing head is anatomical form thermoplastic plate, and by binding strip 9 elasticity constraint pressurization between fixing head, fixing head evenly offers air-vent 1, fixing head here refers to above-mentioned arm fixing head 2 and metacarpus fixing head 7.
As shown in Figure 3, the medial surface of described arm fixing head 2 is provided with breathable viscosity liner 10.
As shown in Figure 4, the medial surface of described metacarpus fixing head 7 is provided with breathable viscosity liner 10.
Concrete use step: with the lignocaine Local hematoma extraction anesthesia of 2%, select arm fixing head 2 and the metacarpus fixing head 7 of size to fit forearm and metacarpus, throw off viscosity plastic lining pad pasting, carefully be attached to forearm and metacarpus relevant position, hair dryer thermoplastic can be used when attaching not good, make it dissect attaching, tie up fixing with binding strip 9, degree of tightness will be suitable for.Countertraction reduction is fractured, and traction lower universal-joint 3, telescopic adjusting rod and adjustable connecting rod 6, fluoroscopic examination reduction of the fracture situation, if malreduction, regulates by connecting rod 6.If occur local compression sense of discomfort in therapeutic process or loosen, correct by adjustment traction strength, local heat method that is moulding and degree of tightness binding strip 9.Initial fixing general fixing carpal joint is in the inclined palmar flexion position of chi, and three Zhou Houke change functional position into, and to continue traction fixing, or is replaced with power type extensible link and fixes, can more early movable carpal joint.
Also should illustrate at this, the present invention and above-described embodiment are only stated main improvement part of the present invention, obviously, the forcing screw hole that enforcement of the present invention also relates to metacarpus fixing head, metacarpus fixing head is offered and fixing screw hole etc., here the technology used belongs to prior art, just repeats no longer one by one at this.
In the above-described embodiments, preferred forms of the present invention is described, obviously; under inventive concept of the present invention, still can make a lot of change, at this; should illustrate, any change made under inventive concept of the present invention all will fall within the scope of protection of the present invention.
Claims (5)
1. a non-invasive wrist trans-articular external fixator, it is characterized in that: comprise arm fixing head, be attached on palm and expose the governor motion of the metacarpus fixing head of finger, arm portions fixing head and metacarpus fixing head, described governor motion comprise connect palm back of the body side metacarpus fixing head with arm fixing head and the first governor motion of adjustable length and angle, the metacarpus fixing head being connected other side and arm fixing head and length-adjustable second governor motion; Described first governor motion comprises length-adjustable adjusting rod, connecting rod, the lateral surface of universal joint arm portions fixing head is passed through in one end of this adjusting rod, the other end is socketed above-mentioned connecting rod by swivel, and described connecting rod is arranged on the lateral surface of metacarpus fixing head; Described second governor motion comprises length-adjustable adjusting rod, the lateral surface of two ends respectively by universal joint arm portions fixing head of this adjusting rod and the lateral surface of metacarpus fixing head; The positive backward leading screw that adjusting rod in above-mentioned first governor motion and the second governor motion is referred to length-adjustable expansion link or is socketed by regulating sleeve, when adjusting rod is the positive backward leading screw of band regulating sleeve, regulating sleeve thread bush is connected on the relative inner end of positive backward leading screw.
2. a kind of non-invasive wrist trans-articular external fixator according to claim 1, is characterized in that: in described first governor motion, and connecting rod can coordinate adjusting rod to form 90 ~ 180 degree of angles along swivel.
3. a kind of non-invasive wrist trans-articular external fixator according to claim 1, it is characterized in that: fixing head is anatomical form thermoplastic plate, by binding strip elasticity constraint pressurization between fixing head, fixing head evenly offers air-vent, and fixing head here refers to above-mentioned arm fixing head and metacarpus fixing head.
4. a kind of non-invasive wrist trans-articular external fixator according to claim 1, is characterized in that: the medial surface of described arm fixing head is provided with breathable viscosity liner.
5. a kind of non-invasive wrist trans-articular external fixator according to claim 1, is characterized in that: the medial surface of described metacarpus fixing head is provided with breathable viscosity liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229150.5A CN103300956B (en) | 2013-06-09 | 2013-06-09 | Non-invasive wrist trans-articular external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229150.5A CN103300956B (en) | 2013-06-09 | 2013-06-09 | Non-invasive wrist trans-articular external fixator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103300956A CN103300956A (en) | 2013-09-18 |
| CN103300956B true CN103300956B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310229150.5A Expired - Fee Related CN103300956B (en) | 2013-06-09 | 2013-06-09 | Non-invasive wrist trans-articular external fixator |
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| CN (1) | CN103300956B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104510552B (en) * | 2013-09-28 | 2017-01-18 | 沈阳新松机器人自动化股份有限公司 | Fracture traction device |
| CN104510553A (en) * | 2013-09-28 | 2015-04-15 | 沈阳新松机器人自动化股份有限公司 | Hand clamping mechanism and traction device |
| CN103565569B (en) * | 2013-10-14 | 2016-02-24 | 天津科技大学 | Boxer fracture reset-holder |
| CN105167897B (en) * | 2015-08-19 | 2017-08-01 | 李刚 | Wrist joint fixing device with spring |
| CN105748259B (en) * | 2016-04-25 | 2018-03-16 | 四川欣美瑞科技有限公司 | A kind of joints continue to be passive instrument |
| CN106821577A (en) * | 2017-02-17 | 2017-06-13 | 何诗跃 | A kind of arm fracture cradle |
| CN106943224B (en) * | 2017-04-11 | 2023-07-11 | 盐城卫生职业技术学院 | Finger fixing support |
| CN108543222B (en) * | 2018-05-14 | 2021-11-23 | 代明军 | Adjustable fixing device for wrist joint fracture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6179799B1 (en) * | 1999-02-01 | 2001-01-30 | Robert E. Doran | Orthosis for supination and pronation of the wrist |
| CN2766805Y (en) * | 2005-03-01 | 2006-03-29 | 中国振华集团华联无线电器材厂 | Functional plastic splint for joint |
| CN101716104A (en) * | 2009-12-10 | 2010-06-02 | 杨兆新 | Portable combined type fixing device for first aid of limb fracture |
| CN203315143U (en) * | 2013-06-09 | 2013-12-04 | 刘涛 | Noninvasive external fixator across wrist joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2467940A (en) * | 2009-02-20 | 2010-08-25 | Cambfix | Fixator |
-
2013
- 2013-06-09 CN CN201310229150.5A patent/CN103300956B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6179799B1 (en) * | 1999-02-01 | 2001-01-30 | Robert E. Doran | Orthosis for supination and pronation of the wrist |
| CN2766805Y (en) * | 2005-03-01 | 2006-03-29 | 中国振华集团华联无线电器材厂 | Functional plastic splint for joint |
| CN101716104A (en) * | 2009-12-10 | 2010-06-02 | 杨兆新 | Portable combined type fixing device for first aid of limb fracture |
| CN203315143U (en) * | 2013-06-09 | 2013-12-04 | 刘涛 | Noninvasive external fixator across wrist joint |
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| CN103300956A (en) | 2013-09-18 |
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Granted publication date: 20150415 Termination date: 20160609 |