CN2675084Y

CN2675084Y - External fixation for rectifying joint deformity

Info

Publication number: CN2675084Y
Application number: CN 200420001942
Authority: CN
Inventors: 郑学建; 秦泗河; 王兆年
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-09
Filing date: 2004-01-09
Publication date: 2005-02-02
Anticipated expiration: 2014-01-09

Abstract

The utility model relates to an external fixer for rectifying joint deformity, which is used for treating joint deformity. The utility model is mainly composed of clamping needle connecting rings, joint connecting rods, coupling rods, a rotary block, a T-shaped plate, screw rods, a handwheel, etc. The utility model is characterized in that the screw rod is connected with a ring having a hole and a clamping needle block. Screw rods having a hole are connected to form the clamping needle connecting ring. A concavity block and a convexity block form a rivet connection with rivets having a hole. One end having a screw nut is respectively connected with the screw rod to form the joint connecting rod. The coupling rod is composed of the T-shaped plate, the rotary block, the screw rod, screw nuts, springs, the handwheel, the concavity block, the convexity block and a plate having a hole. A plurality of screw rods, screw nuts are connected with a plurality of clamping needle connecting rings, joint connecting rods and coupling rods to form the external fixer for rectifying joint deformity to rectify joint deformity.

Description

Joint deformity is corrected external fixator

This utility model is to be used for the treatment of joint deformity bone external fixation medical apparatus and instruments.

Treat extremities joint deformity method now: surgical incision arthrogryposis ligament, peel off joint sticking connection soft tissue, operate on and bring misery to patient.Existing external fixator multifunctional lock opens combination bone external fixator patent No. ZL98210954.7 lock and opens the articulation structure complexity, 2 parallel slots are arranged one end plate of L cylindrarthrosis frid and to be fixed on the fixation clamp Bolt Connection dumb, weak effect in the wrong is stretched in the treatment joint, therefore inapplicable.

The purpose of this utility model is to design a kind of treatment joint flexing, stiff odd-shaped external fixator, easy to install, the energy closed reduction, the handwheel that turns on the screw rod promotes spring tractive prolongation soft tissue of joint and ligament gradually, make the flexing joint recover to stretch function gradually, can make stiff joint flexing gradually again, recover the flexing function and reach therapeutic purposes.

This utility model is by T shape plate 1, switch block 2, spring 3, handwheel 4, screw rod 5, concavity piece 6, rivet 7, convex piece 8, perforated plate 9, ring 10 with holes, folder pin piece 11, rivet 12 with holes, screw rod 13 with holes is formed as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, it is characterized in that: screw rod 5, nut connects several rings with holes 10, ring 10 with holes is tabular rings, endless belt hole and folder pin piece 11, screw rod 13 with holes connect forms folder pin connection ring, and an end of folder pin piece 11 is square shapes, one side has two grooves, in the middle of two grooves screw rod is arranged, screw rod 13 with holes is screw shaped, and newel post's shape is with holes; One end of concavity piece 6 has female thread to connect with screw rod 5, and the other end is hole on the concavity end convex plate with convex piece 8 with holes with tubular rivet 12 riveted joints, and convex piece 8 other end band female threads connect with screw rod 5, and screw rod 5 connects composition joint link rod with nut; T shape plate 1 is a T shape plate, a two ends wherein stomidium with holes connects with a screw rod of switch block 2, switch block 2 other ends are cylindric has a hole to connect with screw rod 5, screw rod 5 and spring 3, handwheel 4 connects, handwheel 4 is 6 grooves of zona columnaris, the axle center is that screw connects with screw rod 5, screw rod 5 other ends connect with an end screw of nut and concavity piece 6, one stomidium of concavity connects with rivet with a stomidium of convex piece 8, convex piece 8 other ends connect with perforated plate 9 with soket head cap screw and form coupling bar, screw rod 5 coupling nuts on the perforated plate 9 two ends other end with holes and the ring with holes 10 are fixed, and a stomidium of coupling bar other end T shape plate connects with the screw rod 5 on the ring 10 with holes forms joint deformity rectification external fixator.

This utility model is compared following advantage with existing bone external fixator: do not operate on and twist flexing position, joint by the handwheel of putting on coupling bar with even speed every day, positive hour hands or counterclockwise shearing, promote spring and make it the intra-articular adhesion soft tissue that stretches gradually, every day, even speed prolonged, easy to use, reduce misery, can reach closed reduction and prolong soft tissue, the stiff deformity of orthotic joint flexion deformity and orthotic joint.

Description of drawings:

Fig. 1 is this utility model population structure sketch map;

Fig. 2 is this utility model folder pin connection ring structure sketch map;

Fig. 3 is this utility model joint linkage structure sketch map;

Fig. 4 is this utility model T shape plate side view;

Fig. 5 is this utility model T shape plate front view;

Fig. 6 is this utility model T shape plate vertical view;

Fig. 7 is this utility model switch block front view;

Fig. 8 is this utility model switch block side view;

Fig. 9 is this utility model coupling bar structural representation;

Figure 10 is this utility model orthotic knee flexion joint deformity begin treatment sketch map;

Figure 11 is that this utility model orthotic knee flexion joint deformity makes the joint stretch the healing sketch map;

Figure 12 is this utility model orthotic knee joint stiffness deformity begin treatment sketch map;

Figure 13 is this utility model orthotic knee joint stiffness deformity, makes the joint flexing cure sketch map;

Embodiment of the present utility model:

Joint deformity is corrected external fixator by T shape plate 1, switch block 2, spring 3, handwheel 4, screw rod 5, concavity piece 6, rivet 7, convex piece 8, perforated plate 9, ring 10 with holes, folder pin piece 11, tubular rivet 12, screw rod 13 with holes is formed as shown in Figure 1: its medi-spring 3, nut, screw rod 5, rivet 7, tubular rivet 12, soket head cap screw are standard components, and other part of joint deformity rectification external fixator belongs to material by titanium alloy and manufactures, screw rod 5, nut connects several rings with holes 10, and ring 10 with holes is tabular rings, endless belt hole and folder pin piece 11, screw rod 13 with holes connects forms folder pin connection ring, one end of folder pin piece 11 is square shapes, and one side has two grooves, and screw rod is arranged in the middle of two grooves, screw rod 13 with holes is screw shaped, and newel post's shape is as shown in Figure 2 with holes; One end of concavity piece 6 has female thread to connect with screw rod 5, the other end is hole on the concavity end convex piece plate with convex piece 8 with holes with tubular rivet 12 riveted joints, convex piece 8 other end band female threads connect with screw rod 5, and screw rod 5 connects with nut forms the joint link rod as shown in Figure 3; T shape plate is a T shape plate, two ends are with holes as Fig. 4, Fig. 5, shown in Figure 6, wherein a stomidium connects with a screw rod of switch block 2, switch block 2 other ends are cylindric has a hole to connect with screw rod 5, as Fig. 1, Fig. 7, shown in Figure 8, screw rod 5 connects with spring 3 handwheels 4, handwheel 4 is 6 grooves of zona columnaris, the axle center is that screw connects with screw rod 5, screw rod 5 other ends connect with an end screw of nut and concavity piece 6, concavity one stomidium connects with rivet with convex piece 8 one stomidiums, convex piece 8 other ends connect with perforated plate 9 with soket head cap screw and form coupling bar as shown in Figure 9, perforated plate 9 two ends are with holes, and screw rod 5 coupling nuts on another stomidium and the ring with holes 10 are fixed, and a stomidium of coupling bar other end T shape plate 1 connects with the screw rod 5 on the ring 10 with holes forms joint deformity rectification external fixator as shown in Figure 1.

This utility model using method:

Example 1 treatment knee sprung deformity, joint malformation correction external fixator, by putting on the lower limb that are enclosed within flexing, the condyle of femur center is aimed in tubular rivet hole on the link rod of joint, use draw point at femur then respectively, the tibia intersection penetrates the draw point two ends and inserts in the folder pin piece groove, one end screw rod is inserted ring with holes nut bone fixation external fixation, spring and handwheel are by putting at the nearly joint position of screw rod, clockwise direction twisting every day handwheel prolongs that 1mm prolongs knee joint contracture ligament gradually and the intra-articular adhesion soft tissue stretches healing as shown in figure 11 up to knee joint every day as shown in figure 10 then;

Example 2: treatment stiff knee deformity, joint malformation correction external fixator, be enclosed within on the stiff lower limb by putting, hollow rivet hole is aimed at the condyle of femur center on the link rod of joint, wear draw point in femur, tibia intersection respectively with draw point, screw rod with holes is inserted at the draw point two ends, be fixed on the ring with holes with nut, the bone external fixation, spring and handwheel are by putting away from the joint at the switch block opposite side as shown in figure 12, the twisting handwheel makes knee joint move to the flexing direction, and every day, flexing 1mm cured as shown in figure 13 to the normal position up to knee sprung.

Claims

1, a kind of joint deformity is corrected external fixator, comprises T shape plate, switch block, spring, handwheel, screw rod, concavity piece, rivet, convex piece, perforated plate, ring with holes, folder pin piece, rivet with holes, screw rod with holes, it is characterized in that:

A. screw rod (5) nut connects several rings with holes (10), ring with holes (10) is tabular ring, the endless belt hole connects with folder pin piece (11), screw rod with holes (13) forms folder pin connection ring, one end of folder pin piece (11) is the square shape, one side has two grooves, in the middle of two grooves screw rod is arranged, screw rod with holes (13) is screw shaped, and newel post's shape is with holes;

B. an end of concavity piece (6) has female thread to connect with screw rod (5), the other end is hole on the concavity end convex plate with convex piece (8) with holes with tubular rivet (12) riveted joint, convex piece (8) other end band female thread connects with screw rod (5), and screw rod (5) connects with nut forms the joint link rod;

C.T shape plate (1) is a T shape plate, a two ends wherein stomidium with holes connects with a screw rod of switch block (2), switch block (2) other end is cylindric, there is a hole to connect with screw rod (5), screw rod (5) connects with spring (3) handwheel (4), handwheel (4) is 6 grooves of zona columnaris, the axle center is that screw connects with screw rod (5), screw rod (5) other end connects with an end screw of nut and concavity piece (6), one stomidium of concavity connects with rivet with a stomidium of convex piece (8), and convex piece (8) other end connects with perforated plate (9) with soket head cap screw and forms coupling bar;

D. perforated plate (9) two ends are with holes, and screw rod (5) coupling nut on another stomidium and the ring with holes (10) is fixed, and a stomidium of coupling bar other end T shape plate (1) connects with screw rod (5) on the ring with holes (10) to be formed joint deformity and correct external fixator.