CN2035228U - Fixator for reduction of fracture - Google Patents

Abstract

The utility model relates to a resetting fixer used in fracture surgical operations. The resetting fixer adopts two bone needles with screw threads to penetrate into the far and the near bone sections of a fractured limb, a set of supporting racks fix the resetting fixer on the fractured limb. The bone needles are fixed by a resetting device which is installed on the supporting racks, the advance and retreat and the back-and-forth and rotation movement of the bone needles are adjusted by a set of adjusting mechanisms, and an upper supporting rod of the adjusting mechanisms can adjust the relative distance between the two bone needles. The utility model can simultaneously complete traction, resetting, pressurizing and fixation once, and is used for fresh, old, closed, open, and infected limb long bone unstable fractures. The resetting fixer has small volume, light weight, simple structure, convenient generalization, and good clinical applying effect.

Description

Fixator for reduction of fracture

This utility model belongs to the apparatus of surgery fracture operation.

The traditional method of treatment extremity fracture is to use a cover complex apparatus such as an extension table, holder Ma Shi frame, (the bedside X-ray machine carries out gravity traction to braun's splint, use plaster fixation then, patient bed is tens weeks at most in 5～6 weeks at least, patient's spirit physiological load is extremely heavy, cause on the function and lack of proper care, and the equipment complexity, expensive inconvenience is promoted.

Adopt a kind of fracture reduction fixator both at home and abroad recently, by supporting plate and support bar are formed up and down, garden shape slide rail is arranged on the support bar, the fixed screw rod of diverse location end is connected with arc pressuring plate on the slide rail, the Kirschner wire fixed socket is arranged on the supporting plate, during treatment with Kirschner wire by socket penetrate insert after the fractured bones section after the respective socket fixing, regulate strut two end nuts and can carry out between centers traction and pressurization, utilize on the slide rail radial thrust of each arc pressuring plate to reset and fix, this reduction fixture device range of application is narrow, fracture to different parts will be used different reduction fixture devices, use many Kirschner wires, and Kirschner wire will penetrate the trouble lower limb, Kirschner wire requires orthogonal on parallel plane mutually, to handle a plurality of arcs when resetting and push the operation sequence complexity.

It is a kind of simple in structure that the purpose of this utility model is to provide, and volume is little, and is in light weight, the reduction fixture device of wide adaptability, this reduction fixture device is few with pin, and is simple to operate, can once finish traction simultaneously, pressurize, resets, fixes, is convenient to the patient and carry out functional exercise.

This utility model is finished as follows, and reduction fixture device has supporting plate, support bar and and spicule up and down.Spicule all has one section screw thread by the needle point place with by afterbody, after spicule penetrates the cortical bone of bone segment offside, the needle point screw thread also enters bone segment, regulate support bar two end nuts, regulating two sections trouble of insertion bone spicules can draw and pressurize, the spicule socket can about adjust spicule, also can make spicule swing certain angle, also the between centers of may command spicule is advanced and retreat, so this utility model is only used this two spicules, add that guiding mechanism can carry out front and back to the fractured bones section according to the requirement that resets, about, the push-and-pull action of rotation, and after resetting, fix, this utility model is applicable fresh, outmoded, closed, open and infect extremity long bone unstable fracture can once be finished traction simultaneously, pressurization, reset, fixing, and volume is little, in light weight, simple in structure.

Below in conjunction with accompanying drawing this utility model is further described,

Fig. 1 is body figure of the present utility model,

Fig. 2 is the front view of main utility model

Fig. 3 is that the B of Fig. 2 is to view

Fig. 4 is the A-A profile of Fig. 2

Fig. 5 is the front view of spicule in this utility model

As shown in Figure 1, this utility model is by the frame that resets, supporting and mounting bracket and spicule (13) are formed, Fig. 2-Fig. 4 is the frame that resets, by two blocks of fixing supporting plates (2) and insert in the supporting plate (2) two studdles (6) and form body frame, every studdle (6) two ends are located supporting plate (2) by adjusting nut (7), and can regulate this nut (7) when needed, to change the distance of two supporting plates (2), respectively there is a boss on supporting plate (2) both sides, can be on boss with connecting plate (1) hinge joint, supporting plate 2) two boss is arranged in addition, small screw (3) inserts in this boss hole, vertical with studdle (6), locate small screw (3) middle part in small screw (3) end cover top nut (4) back with split pin again and screw in a sliding shoe (11), spicule socket (12) is housed on sliding shoe (11), spicule socket (12) is the garden cylindricality, one end has a hole can insert spicule, the other end is directly through less, pass supporting plate (2) and go up the groove parallel with small screw, after inserting sliding shoe, rotate the turret head of small screw (3) one ends with the split pin location, the spicule (13) that sliding shoe (11) is driven on the spicule socket (12) moves horizontally along groove, on the supporting plate (2), be positioned at small screw top one groove that is parallel to small screw (3) is arranged in addition, spicule fastening block (10) one ends are porose, in be with spicule regulating sleeve (19) cover an end stretch out outside fastening block (10), be turret head, riveting was lived after the other end added the cover packing ring, make spicule regulating sleeve (9) upward rotate and can not drop out at spicule fastening block (10) along axis, the other end of spicule fastening block (10) is a bolt, can insert behind the groove of supporting plate (2) with clamp nut (8) spicule fastening block (10) is fastened on arbitrary position in supporting plate (2) chute, spicule (13) as shown in Figure 5, integral body is the garden cylindricality, needle point is flattened the back sharpening, one section screw thread is arranged at needle point top, afterbody mills out the other side also has one section screw thread by the afterbody below, the middle part is smooth Cylinder, after during use spicule (13) being passed spicule socket (12), insert spicule again and regulate (9), see that female thread is consistent with spicule (13) tailing screw flight, spire regulating sleeve (9) is about to spicule (13) and is installed on the frame that resets, when unclamping clamp nut (8), stir spicule (13) afterbody, can make spicule is garden heart swing with the post center, garden of spicule fastening block (10), rotating small screw (3) can make spicule (13) move horizontally at the chute of spicule fastening block (10) upper edge supporting plate (2), spire regulating sleeve (9) can make spicule advance and retreat along the spicule axis, supporting and mounting bracket as shown in Figure 1, each one is bent claw type plate (15) liner flexible material up and down, belt (15) respectively is equipped with at two ends, and belt fastener (14), the two bow pawl punishment utmost points (16), be connected with screw with lower connecting plate (18) by upper junction plate (17), the distance that has some grooves can regulate two bow claw type plates (15) on the connecting plate when connecting is connected and fixed again.

During installation as shown in Figure 1, at first thread a needle, after choosing entry point, two bone segment in fracture respectively penetrate a pin, the cortical bone that spicule (13) needle point penetrates the bone segment offside gets final product, needn't penetrate the trouble lower limb, adorning the frame that resets then puts, spicule (13) is inserted in spicule socket (12) and the spicule regulating sleeve (9) mix up the distance that supporting and mounting bracket is bent claw type plate (16) up and down by correspondence position again, per two supporting and mounting bracket are as one pair, to bend claw type plate (16) and embrace trouble limb two parts up and down, use the belt fastening, use bolting after again the hole of the last connecting hole (17) of supporting and mounting bracket being aimed at the groove of lower connecting plate (17), whole reduction fixture device installs on the trouble limb.

Rotate the adjusting nut (7) at studdle (6) two ends during operation with spanner, make spicule (13) stir knochenbruch, after traction is drawn back, unclamp the frame that resets and tighten nut (8), rotation small screw 3) can correct and move forward and backward, also can promote spicule (13) afterbody along the spicule vertical direction, spicule (13) is rotated with the axis of bone heart, spire regulating sleeve (9), outside dislocation in can correcting, reset when reaching the anatomy para-position through perspective, rotation studdle (6) two ends adjusting nuts (7), pressurizeed, made two knochenbruch face intercalations, maintain static, reset to fix and promptly come to an end.

The utility model is through 50 many cases clinical practices, and is respond well, and displacement is in 1/5, joint function recovery can adapt to Limb tubular bones unstable fracture fresh, outmoded, closed, open and that infect, and volume is little to suffering from front level, in light weight, be convenient to functional training, shorten healing stage, femoral fracture can be left the bed in 10 days the earliest, only penetrate with two spicules, the patient suffering is little, and the utility model is simple in structure, and easy operating is convenient to make and promote.

Claims (5)

1, the fracture reduction fixator used of a kind of surgery fracture operation comprises the frame of being made up of spicule socket on supporting plate, the supporting plate up and down and support bar that resets; Supporting and mounting bracket, and spicule, it is characterized in that spicule only an end be fixed on the socket, each fracture reduction fixator has only two spicules; There is a cover to regulate the governor motion of spicule motion on the spicule socket.

2, fracture reduction fixator according to claim 1 is characterized in that spicule, and the needle point upper end has one section screw thread that can screw in the bone section, backshank to have one section for the screw thread of regulating the spicule advance and retreat.

3, fracture reduction fixator according to claim 1, displacement is mounted in the small screw on the supporting plate and is connected on the small screw with female thread before and after it is characterized in that when spicule penetrates from the side adjusting, can drive along the supporting plate chute by screw rod and slide the spicule fixed block of other end fixed bone spicule.

4, fracture reduction fixator according to claim 1, what it is characterized in that adjusting the spicule advance and retreat is to be enclosed within the spicule hole of spicule fixed block, one has the turret head of adjusting other end to rivet with packing ring, has the spicule regulating sleeve of female thread.

5, the fracture reduction fixator according to claim 1 back fixed mechanism that it is characterized in that resetting is the hold-down nut and the spicule fixed block of support bar and fixed block can be fastened on clamp nut on the supporting plate.

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