CN2678582Y

CN2678582Y - Multiporous double-arm pressuring external fixer

Info

Publication number: CN2678582Y
Application number: CN 200420033131
Authority: CN
Inventors: 张云光
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-05
Filing date: 2004-03-05
Publication date: 2005-02-16
Anticipated expiration: 2014-03-05

Abstract

The utility model relates to a multiporous double-arm pressuring external fixer. Two multiple pinhole aluminum alloy sleeve pipes 1 with the same structure, a stainless steel pressurizer 2, a metal steel needle 3, socket head cap screws 4, etc. are connected to form the multiporous double-arm pressuring external fixer. Each sleeve pipe is composed of front and back blocks which are connected to form a whole by a quickset 5 and the stainless steel pressurizer 2. The stainless steel pressurizer can put mutual close force to the two steel blocks to adjust the relative distance, and then the two steel blocks are fixed by socket head cap screws. The multiporous double-arm pressuring external fixer has the advantages of skillful structure, convenient operation, firm fracture fixation, good stability and large transfixation range. The multiporous double-arm pressuring external fixer can correct the angulation deformity of the fracture and can resist rotation and shearing force. The multiporous double-arm pressuring external fixer can fix broken bone chips, the damage is small, and the pinholes are not easy to infect.

Description

Porous both arms pressurization external fixator

Technical field: this utility model belongs to the orthopedic medical device field, particularly a kind of porous both arms pressurization external fixator.

Background technology: fracture is a kind of common damage, has a strong impact on people's live and work, fixing after the key of fracture displacement treatment is to reset.Effectively the orthopaedics external fixator helps the agglutination that quickens to fracture, reduces complication, improves the recovery capability of allomeric function.Existing orthopaedics external fixator is as monoplane half pin type, semi-ring slot type, loopful formula, trigonometric expression, bilateral formula, four limit formulas, frame, combination type, telescopic or the like.They respectively have weak point: the structure that has is too complicated, heavy, operation inconvenience; The fixedly fracture that has is insecure, and draw point fixation clamp and connecting rod are easily loosening, and poor stability makes fracture displacement and influence healing; The pin hole that has is few, and on a plane, threading a needle fixedly is restricted; Nothing pressurization that has and prolongation function; Angulation deformity, rotation and the front and back of not correcting fracture that have, separate the effect of displacement and overlapping displacement up and down; The fixedly bone cips that has; The fixedly damage that has is big, the pin hole easy infection.

Summary of the invention: at the deficiency of above-mentioned prior art existence, this utility model provides a kind of structure dexterity, easy to operate, fixing fracture firmly, good stability, the fixed range of threading a needle is big, pressurization is arranged and prolong function, and can correct the angulation deformity of fracture, anti-rotation and shearing, fixedly bone cips, damage little, not susceptible porous both arms of the pin hole external fixator that pressurizes.

The porous both arms pressurization external fixator that this utility model provides, comprise spininess hole aluminium alloy sleeve pipe, parts such as many metal draw points and screw, it is characterized in that: two spininess hole aluminium alloy sleeve pipes that structure is identical are arranged, the metal draw point is anchored between two telescopic opposite ends with screw after passing pin hole on the sleeve pipe, each sleeve pipe is formed with the back piece by preceding, before, be connected with between the back piece and transplant a cutting and prelum, prelum by two rotation directions on the contrary and respectively with preceding, the screw mandrel of back piece thread connection constitutes, the other end of two rhizoid bars is being fixedly connected simultaneously one and is accepting head, when rotation is accepted forward or backwards, piece and the back piece is drawn close thereupon mutually or separately to adjust its relative distance before driving by the opposite screw mandrel of rotation direction; Transplanting a cutting an end and preceding piece or back piece is connected as a single entity, and the other end is inserted in vertical hole of back piece or preceding, and it inserts partly the relative distance of adjusting forward and backward interblock along with prelum and is vertically moving forward and backward in the hole.

Its part of inserting among vertical hole has groove in the cutting between described forward and backward, this groove can with fastening connection of screw one end of screwing in after the relative distance adjustment.

Two sides have that to walk crosswise 3 rows, stringer 10～30 row, its diameter be 20～90 ducts of threading a needle of 2.2～5.2 millimeters on the aluminium alloy sleeve pipe of described spininess hole; Spininess hole aluminium alloy sleeve pipe upper and lower surface is useful on a plurality of screws of fastening metal draw point, cutting and threaded screw rod.

Description of drawings: Fig. 1 is a structural representation of the present utility model.

The specific embodiment: reach embodiment in conjunction with the accompanying drawings and describe, but protection domain of the present utility model is not limited to accompanying drawing and embodiment.

As shown in the figure, porous both arms that this utility model provides pressurization external fixator is connected by parts such as the identical spininess hole aluminium alloy sleeve pipe 1 of two structures, rustless steel prelum 2, metal draw point 3, soket head cap screws 4 and to constitute.Each spininess hole aluminium alloy sleeve pipe is made up of two of front and back, between them by transplant a cutting 5 and prelum 2 be connected as a body, relative distance between the two can be by after transplant a cutting adjusting, the reuse screw is fixed.Be provided with the rustless steel prelum that can apply the power of drawing close mutually between two blocks of aluminium alloys to two Al alloy blocks, transplanting a cutting an end and preceding Al alloy block is connected as a single entity, the other end inserts among vertical hole of back Al alloy block, can in vertical hole of Al alloy block, stretch thereby transplant a cutting, be shaped on groove in the cutting, screw soket head cap screw and can compress the part of cutting in the vertical hole of Al alloy block.Said rustless steel prelum is made of two middle being fixedly connected with a cylinder handwheel of the dextral screw mandrels in a left side; about also being divided into, screwed hole on the front and back Al alloy block corresponding with it revolves screw thread; like this when the rotating cylindrical body handwheel; just can make and draw close mutually simultaneously between two Al alloy blocks or draw close mutually simultaneously separately, flexible is pressurizeed and is prolonged 0～100 millimeter.Two blocks of aluminium alloys in front and back of forming porous road aluminum alloy sleeve, 3 rows, stringer 1～30 row, 20～90 ducts of threading a needle are walked crosswise in both sides, its diameter is 2.2～5.2 millimeters, can select 2.5～5 millimeters metal draw points of diameter from a plurality of ducts, 3 planes, directly thread a needle and fix fracture, thread a needle not only steadily but also convenient with duct guiding, have flexible, the stable characteristics of threading a needle.There are 3～6 parallel ducts of threading a needle in the aluminium alloy stage casing, and can run through or the side extruding fixedly bone cips of threading a needle, and can increase and fix the stability of fracturing.

Use of the present utility model: the reduction of the fracture and thread a needle and fixing all in operating room or therapeutic room, operate, and under the monitoring of x ray machine, carry out.Will choose operative indication before the art, be ready to this utility model porous both arms pressurization external fixator that length is fit to, the sick and wounded are behind antibiotics injection and local anaesthesia or lumbar anesthesia for fracture, and the horizontal position upper and lower extremities stretches.Setting-out location: before for example tibia was threaded a needle, interior side entered, promptly the tibia knot connect with tibia internal malleolus on line on; Femur is threaded a needle and is entered with the side, and promptly on greater trochanter and the femur external malleolus mid point on line, high degree of care is to avoid injured blood vessel or nerve when threading a needle.

Operating principle is: the reduction of the fracture, lay external fixator, and it is fixing to thread a needle, and the para-position of check fracture is to line.

Must carry out reduction to the fracture of displacement before threading a needle, according to different fracture sites and treatment require to determine to thread a needle layout and select suitable full pin or half pin to fix, regulate suitable external fixator length, tighten the rustless steel prelum, thread a needle then, lay external fixator and fix.If long oblique, spiral type, comminuted fracture external fixator are fixed with when insecure, select stage casing pin hole, monolateral pin or full pin fixation for treatment for use.

Line: select the correct position of threading a needle, the fracture of lower leg outside is on the line of tuberosity of bitia,external and external malleolus, and inboard dot-dash line among tibial plate center and tibia internal malleolus line, locking pin all are main threading a needle on line.

Thread a needle: determine that the reduction of the fracture is kept, the duct of threading a needle in the fracture two ends with the external fixator position is guiding, directly penetrates 4～6 pieces of draw points.Two pieces of intermediary asseous pins (this formula pin) are advisable for 20～30 millimeters near fracture end.Bone cips or spiral type, oblique fracture instability person are arranged, thread a needle fixing with a side or the full pin of bilateral or half pin.And tighten the fixedly screw of draw point.

Fixing: after checking that the fracture end para-position is to line satisfaction, adjust the external fixator position, behind the loosening firm screw, interior receipts rotation prelum makes the fracture end pressurization, and it is tight to connect the angle, fixedly secures.

Check: it is satisfied to line that the para-position of x mating plate inspection fracture is had an X-rayed or taken the photograph to operating room TV x ray machine, the fixing fracture of hypozygal inspection firmly in the activity, no blood vessel nerve injury, asseous pin (this formula pin) nothing penetrates articular cavity, do not have to depart from and wrap up otch and pinprick after sclerotin and the place of threading a needle skin do not have tension force, external fixator is placed in be and 10～15 millimeters away from limb skin is advisable, and wipes out the unnecessary draw point in the outside energetically, adhesive plaster or plastic cap parcel.

Post surgery treatment: patient's postoperative gives the preventive antibiotic treatment, early stage swelling pain, and pinprick has when oozing out, and is put on Blang's formula frame, raises trouble limb or pinprick and embrocates 1 time with alcohol cotton stick every day, keeps dry dressing change.The cane of leaving the bed gradually after 1～2 week is taken exercise, and regularly takes the photograph the check of x mating plate, observes the union of fracture situation, and generally external fixator is removed in postoperative callus in 3～June growth healing back, protects for 1～February with tablet or plaster slab in case of necessity.

Claims

1, a kind of porous both arms pressurization external fixator, comprise spininess hole aluminium alloy sleeve pipe, parts such as many metal draw points and screw, it is characterized in that: two spininess hole aluminium alloy sleeve pipes that structure is identical are arranged, the metal draw point is anchored between two sleeve pipes with screw after passing pin hole on the sleeve pipe, each sleeve pipe is formed with the back piece by preceding, before, be connected with between the back piece and transplant a cutting and prelum, prelum by two rotation directions on the contrary and respectively with preceding, the screw mandrel of back piece thread connection constitutes, the other end of two rhizoid bars is being fixedly connected simultaneously one and is accepting head, when rotation is accepted forward or backwards, piece and the back piece is drawn close thereupon mutually or separately to adjust its relative distance before driving by the opposite screw mandrel of rotation direction; Transplanting a cutting an end and preceding piece or back piece is connected as a single entity, and the other end is inserted in vertical hole of back piece or preceding, and it inserts partly the relative distance of adjusting forward and backward interblock along with prelum and is vertically moving forward and backward in the hole.

2, holder as claimed in claim 1 is characterized in that: its part of inserting among vertical hole has groove in the cutting between forward and backward, this groove can with fastening connection of screw one end of screwing in after the relative distance adjustment.

3, holder as claimed in claim 1 is characterized in that: both sides have that to walk crosswise 3 rows, stringer 10～30 row, its diameter be 20～90 ducts of threading a needle of 2.2～5.2 millimeters on the aluminium alloy sleeve pipe of spininess hole.

4, holder as claimed in claim 1 is characterized in that: spininess hole aluminium alloy sleeve pipe upper and lower surface is useful on a plurality of screws of fastening metal draw point, cutting and threaded screw rod.