CN2216823Y

CN2216823Y - Fixation supporting frame for joint of knee or elbow

Info

Publication number: CN2216823Y
Application number: CN 94222102
Authority: CN
Inventors: 杨述华; 彭胜钢; 夏南平
Original assignee: Tongji Medical College of Huazhong University of Science and Technology
Current assignee: Tongji Medical College of Huazhong University of Science and Technology
Priority date: 1994-09-13
Filing date: 1994-09-13
Publication date: 1996-01-10
Anticipated expiration: 2004-09-13

Abstract

The utility model relates to a fixation supporting frame for joint of knee or elbow which comprises at least an upper fixed ring (1), at least a lower fixed ring (2), an upper connecting plate (3) and a lower connecting plate (4) which are arranged on both sides of the upper fixed ring and the lower fixed ring, wherein, the upper fixed ring and the lower fixed ring are a switching-on cyclic structure jointed by two semicircular arc-shaped structures; the relative end of the upper connecting plate (3) and the lower connecting plate (4) are connected by the way of a rotating shaft which can be fixed, and the included angle can be regulated and fixed according to the condition of patients. The fixation supporting frame solves the problem that pneumonia, cardiovascular disease, limb thrombosis, pressure ulcer, common peroneal nerve injury, joint stiffness, discomfort in patients and insalubrity are easily caused in traditional fixed mode.

Description

Knee joint, elbow joint fixed support

This utility model relates to medical arthrodesis apparatus.

Surgical operation therapy knee joint, elbow joint disease need be fixed the joint, in order to its rehabilitation.The fixing means that adopts has plaster fixation, skin traction to fix and the bone traction and fixation at present, these fixing means weak points are the necessary long-term bed of patient, not only easily cause pneumonia and cardiovascular disease, also can cause suffering from limb generation blood vessel embolism, severe patient can cause amputation.Often the danger of complication such as pressure ulcer, common peroneal nerve injury takes place, and might cause ankylosis in plaster fixation method in addition that adopt, and part patient can not cause lifelong obstacle by restore funcitons because of stiff joint.The big shortcoming of another of plaster fixation is that patient's sense of discomfort is obvious, can not be cleaned for a long time by the position of plaster fixation, and is extremely unhygienic.

The purpose of this utility model is to provide a kind of new knee joint, elbow joint fixed support, make it to have the fixedly function of knee joint, elbow joint, can overcome the conventional fixed mode again needs long-term bed easily to cause pneumonia, cardiovascular disease, limbs thromboembolism, pressure ulcer, common peroneal nerve injury, ankylosis, patient not to accommodate shortcomings such as unhygienic.

Specific embodiments of the present utility model is: the knee joint that is provided by this utility model, the elbow joint fixed support, it comprises last retainer ring and at least one following retainer ring of being made up of two semicircular arc structures that at least one is made up of two semicircular arc structures, on the composition, two opposite ends of two semicircular arc structures of following retainer ring connect in rotary hinge mode respectively and are connected in the cingulum mode that can open and fasten, both sides at last retainer ring, be connected with the upper junction plate of two strips, the both sides of infra retainer ring are connected with the lower connecting plate of two strips, on the both sides, the opposite end of lower connecting plate is connecting by fixed rotating shaft device.

The connected mode of upper and lower connecting plate and upper and lower retainer ring, it can be fixed connection, as with screw connection, welding etc., it also can be movable connection method, it is the scalable relative position, flexible connection can have two kinds of forms, the first has the circular screwhole of vertical arrangement on upper and lower connecting plate, on the position that is connected with upper and lower connecting plate on the upper and lower retainer ring, circular screwhole is arranged, adjust the relative position of connecting plate and retainer ring, pass screw on the retainer ring and the screw on the corresponding connecting plate with screw, can realize the flexible connection of the two.It two is that break-through groove is longitudinally arranged on upper and lower connecting plate, passes this groove with fixed screw and is connected with retainer ring, and retainer ring can be adjusted relative position along the upper and lower slip of break-through groove.This support bracket fastened upper and lower retainer ring and upper and lower connecting plate can be made by the engineering plastics with certain intensity, also can make by alloy aluminum, little retainer ring can be slightly less than retainer ring, and its internal diameter adapts with the shank of human body lower limbs, the external diameter of thigh or forearm, the upper arm external diameter of upper limb respectively.

Advantage of the present utility model is: because it has adopted ventilated support structure, so the patient has tangible comfort, carry out the part cleaning because this fixed support can take off at any time, so than conventional fixed mode sanitation and hygiene.Use still ground activity down easily of this support bracket fastened patient, thereby reduced the generation of cardiovascular and pulmonary complication, also do not had a probability of suffering from limb generation thrombosis, because this support bracket fastened elasticity is adjustable at any time, and adjust very convenient, the area and the plaster fixation of its contact trouble limb are smaller in addition again, so pressure ulcer or nerve injury complication can not take place.This fixed support belongs to external fixation character, can carry out exercise of joint function simultaneously at external fixation, therefore, the joint function disturbance because of fixedly causing can not take place.

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Fig. 1 is the structure chart of first embodiment of this utility model.

Fig. 2 is the structure chart of another embodiment of the present utility model.

Fig. 3 is the connector of upper and lower connecting plate among Fig. 2---the longitudinal section of internal gear self-locking rotating shaft (9).

Fig. 4 is the cutaway view of A--A line among Fig. 3.

In knee joint that Fig. 1 provides, elbow joint fixed support, two upper junction plates 3 that have vertical break-through groove 8 pass the both sides that break-through groove 8 is connected in two last retainer rings 1 by CONTEN STEEL OVAL NECK TRACK BOLTS, last retainer ring 1 is by two involutory compositions of semicircular arc structure end end that can open relatively, two opposite ends of two semicircular arc structures link to each other with nylon cingulum 5 with hinge 6 respectively, an end that connects with hinge 6 is a round end, but an end that links to each other with nylon cingulum 5 is an opening end, open this end, can be on human body limb with Fixing shrink ring.Nylon cingulum 5 passes two strip holes of the opening end that is positioned at two semicircular arc structures and fastens, thereby makes retainer ring become a close ring.The structure and the connected mode of two lower connecting plates 4 and two following retainer rings 2 are identical with the structure and the connected mode of above-mentioned upper junction plate 3 and last retainer ring 1.The opposite end of the upper and lower connecting plate in both sides connects with CONTEN STEEL OVAL NECK TRACK BOLTS 7, and making upper and lower connecting plate can serve as that axle relatively rotates with this CONTEN STEEL OVAL NECK TRACK BOLTS 7, and can be fixed in a certain angle by this CONTEN STEEL OVAL NECK TRACK BOLTS 7.

Embodiment that Fig. 2 provides and last embodiment difference are: on it, lower connecting

plate

3,4 opposite end connects with internal gear self-locking rotating shaft (9), this internal gear self-locking rotating shaft is by the outer rotary table (10) that links to each other with upper junction plate and be embedded in mutually in the outer rotary table (10), and the internal gear rotating disk (11) that links to each other with lower connecting plate is formed, but the ferrum bayonet lock (12) of a break-through to internal gear rotating disk teeth groove place arranged on outer rotary table, on the edge of the lateral surface of outer rotary table (10) with on ferrum bayonet lock (12) relevant position magnet piece (13) of a root of Dahurian angelica in outer rotary table (10) wall arranged, its effect is by the fixing bayonet lock (12) that lacks of its magnetic force.The centre of inside and outside rotating disk connects with axle, and inside and outside rotating disk relatively rotates the angle that then can change upper and lower connecting plate, and ferrum bayonet lock (12) then can make its fixed angle.

During use, to go up the cingulum of retainer ring unties, open its opening end, with the last Fixing shrink ring opened behind patient's thigh or upper arm with the opening end closure, tighten up and fasten cingulum, same method can be fixed for making retainer ring preferably with descending retainer ring to be fixed on patient's the shank or forearm, can place one or more layers cotton pad or other fabric between retainer ring inner face and limbs.According to the conditions of patients difference, adjust the angle of upper and lower connecting plate, clutch CONTEN STEEL OVAL NECK TRACK BOLTS 7 or inject ferrum bayonet lock 12 and make it fixing.

Claims

1, a kind of knee joint, the elbow joint fixed support, it is characterized in that: it comprises last retainer ring (1) that at least one is made up of two semicircular arc structures and the following retainer ring (2) that at least one is made up of two semicircular arc structures, on the composition, two opposite ends of two semicircular arc structures of following retainer ring are connected with the cingulum (5) that can open and can fasten with rotary card chain (6) respectively, be connected with the upper junction plate (3) of two strips in the both sides of last retainer ring (1), the both sides of infra retainer ring (2) are connected with the lower connecting plate (4) of two strips, on the both sides, but the opposite end of lower connecting plate is connected with the fixed bias circuit device

2, knee joint according to claim 1, elbow joint fixed support, it is characterized in that said be used to connect the upper and lower connecting plate in both sides (3,4) but the fixed bias circuit device be CONTEN STEEL OVAL NECK TRACK BOLTS (7).

3, knee joint according to claim 1, elbow joint fixed support, it is characterized in that said be used to connect the upper and lower connecting plate in both sides (3,4) but the fixed bias circuit device be internal gear self-locking rotating shaft (9).

4, according to claim 1,2 or 3 described knee joints, elbow joint fixed support, it is characterized in that: be useful on vertical break-through groove (8) of regulating retainer ring and connecting plate relative position on the said upper and lower connecting plate (3,4) that is positioned at upper and lower retainer ring (1,2) both sides, fixed screw passes this break-through groove (8) and is connected with retainer ring.

5, according to claim 1,2 or 3 described knee joints, elbow joint fixed support, it is characterized in that: be useful on a plurality of circular holes of regulating retainer ring and vertical arrangement of connecting plate relative position on the said upper and lower connecting plate (3,4) that is positioned at upper and lower retainer ring (1,2) both sides, fixed screw passes one of these a plurality of circular holes that become vertically arrangement and is connected with retainer ring.

6,, it is characterized in that it has two to go up retainer ring (1) and two following retainer rings (2) according to claim 1,2 or 3 said knee joints, elbow joint fixed support.

7, knee joint according to claim 4, elbow joint fixed support is characterized in that it has two to go up retainer ring (6) and two following retainer rings (2).

8, knee joint according to claim 5, elbow joint fixed support is characterized in that it has two to go up retainer ring 1 and two following retainer rings (2).

9, according to claim 1,2 or 3 described knee joints, elbow joint fixed support, it is characterized in that: the medial surface at upper and lower retainer ring (1,2) has cotton pad.

10, according to claim 1,2 or 3 described knee joints, elbow joint fixed support, it is characterized in that: this fixed support is to be made by engineering plastics or alloy aluminum.