CN2216823Y

CN2216823Y - Knee and elbow fixation bracket

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

A knee and elbow joint fixing bracket, the bracket includes at least one upper fixing ring (1) and at least one lower fixing ring (2), and upper connecting plates (3) and lower connecting plates located on both sides of the upper and lower fixing rings (4), the upper and lower fixing rings are an openable ring structure composed of two semicircular arc-shaped structures, and the opposite ends of the upper and lower connecting plates (3, 4) are connected by fixed rotating shafts. , The included angle of the lower connecting plate (3, 4) can be adjusted and fixed according to the needs of the disease. The fixation bracket can overcome the disadvantages of traditional fixation methods, such as pneumonia, cardiovascular disease, limb embolism, pressure ulcer, common peroneal nerve injury, joint stiffness, patient discomfort and unhygienic, etc., which are easily caused.

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, elbow joint fixation bracket is characterized in that: it comprises at least one upper fixation ring (1) that is made up of two semicircle-arc structures and at least one lower fixation ring (1) that is made up of two semicircle-arc structures 2), the two opposite ends of the two semicircular arc structures that make up the upper and lower fixing rings are respectively connected by a rotatable grain chain (6) and a buckle belt (5) that can be opened and fastened, and fixed on the upper The two sides of the ring (1) are connected with two strip-shaped upper connecting plates (3), and the two sides of the lower fixed ring (2) are connected with two strip-shaped lower connecting plates (4). The opposite ends of the lower connecting plate are connected by a fixed rotating shaft device

2. The knee and elbow joint fixation bracket according to claim 1, characterized in that the fixed rotating shaft device used to connect the upper and lower connecting plates (3, 4) on both sides is a fishtail screw (7) .

3. The knee and elbow joint fixing bracket according to claim 1, characterized in that said fixed rotating shaft device for connecting the upper and lower connecting plates (3, 4) on both sides is an internal gear self-locking rotating shaft ( 9).

4. The knee and elbow joint fixing bracket according to claim 1, 2 or 3, characterized in that: the upper and lower connecting plates (3, 2) located on both sides of the upper and lower fixing rings (1, 2) 4) There is a longitudinal through groove (8) for adjusting the relative position of the fixing ring and the connecting plate, and the fixing screw passes through the through groove (8) to connect with the fixing ring.

5. The knee and elbow joint fixing bracket according to claim 1, 2 or 3, characterized in that: the upper and lower connecting plates (3, 2) located on both sides of the upper and lower fixing rings (1, 2) 4) There are a plurality of longitudinally arranged round holes for adjusting the relative position of the fixing ring and the connecting plate, and the fixing screw passes through one of the plurality of longitudinally arranged round holes and is connected with the fixing ring.

6. The knee and elbow joint fixing bracket according to claim 1, 2 or 3, characterized in that it has two upper fixing rings (1) and two lower fixing rings (2).

7. The knee and elbow joint fixing bracket according to claim 4, characterized in that it has two upper fixing rings (6) and two lower fixing rings (2).

8. The knee and elbow joint fixing bracket according to claim 5, characterized in that it has two upper fixing rings 1 and two lower fixing rings (2).

9. The knee and elbow joint fixation bracket according to claim 1, 2 or 3, characterized in that there are cotton pads on the inner surfaces of the upper and lower fixation rings (1, 2).

10. The knee and elbow joint fixing bracket according to claim 1, 2 or 3, characterized in that: the fixing bracket is made of engineering plastics or alloy aluminum.