CN110037842A - Adjustable Thoracolumbar disk draws orthopedic fixator - Google Patents

Abstract

The invention belongs to the technical field of medical devices, and relates to an adjustable thoracolumbar traction orthopaedic fixer. The device comprises a left fixation part and a right fixation part, the left fixation part comprises a left thoracic spine fixation plate and a left lumbar spine fixation plate which are connected from top to bottom and are connected by an adjustable traction rod; The right thoracic vertebrae fixed plate and the right lumbar vertebrae fixed plate connected to the bottom and connected by an adjustable traction rod, the left and right thoracic vertebrae fixed plates and the left and right lumbar vertebrae fixed plates are all U-shaped plates, and their respective The curvature is adapted to the curve of the human body, and the openings of the left and right thoracic vertebrae fixing plates and the openings of the left and right lumbar vertebrae fixing plates are connected by adjustable fixing belts. The device can play a good role in traction, fixation and correction of thoracolumbar patients, prevent fractures or postoperative sequelae and complications, and can correct deformities such as scoliosis and help patients recover early.

Description

Adjustable thoracolumbar traction orthopaedic fixator

technical field

The invention belongs to the technical field of medical devices, and relates to an adjustable thoracolumbar traction orthopaedic fixer.

Background technique

Existing thoracolumbar fixation devices (such as braces, etc.) can basically only play a braking and protective role on the thoracolumbar spine for thoracolumbar compression fractures or post-operative recovery of the thoracolumbar spine, that is, only limit the front of the lumbar spine. The activities of flexion, extension and left and right scoliosis did not significantly reduce the pressure of the upper body on the fracture and the surgical site in the case of standing or sitting. Therefore, it would still cause the fracture site to continue to collapse and become flattened. Fixation loosening, fracture, etc. At the same time, for scoliosis, although there are scoliosis orthopedic braces, there is currently no orthopedic fixation device that combines traction and scoliosis correction.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an adjustable thoracolumbar traction orthopaedic fixator, which can prevent thoracolumbar fractures or related complications after surgery, and correct deformities such as scoliosis.

The technical scheme that the present invention solves the above-mentioned technical problem is:

An adjustable thoracolumbar traction orthopaedic fixator, comprising a left fixation part and a right fixation part; wherein the left fixation part comprises left thoracic vertebrae arranged in sequence from top to bottom and connected by two adjustable traction rods Fixation plate and left lumbar spine fixation plate; the right fixation part includes the right thoracic spine fixation plate and the right lumbar spine fixation plate which are arranged in order from top to bottom and connected by two adjustable traction rods; the left thoracic spine fixation plate, the left The structures of the lateral lumbar spine fixation plate, the right thoracic spine fixation plate and the right lumbar spine fixation plate are all U-shaped plates, and their respective curvatures are adapted to the curve of the human body; the opening of the left thoracic spine fixation plate is the same as the right one. The opening of the thoracic spine fixing plate, the opening of the left lumbar spine fixing plate and the opening of the right lumbar spine fixing plate are all connected by adjustable fixing belts.

Further, the middle of the upper edge of the left thoracic vertebrae fixed plate and the right thoracic vertebrae fixed plate are respectively provided with a downwardly concave first arc-shaped groove and a second arc-shaped groove, and the first arc-shaped groove and the second arc-shaped groove are respectively opened at the lower part of the human axilla. In the two arc-shaped grooves, the level near the front wall of the axilla and the back wall of the axilla were higher than the level of the bottom of the axilla.

Further, the width of the first arc-shaped groove body is greater than the thickness of the left thoracic spine fixing plate, and the width of the second arc-shaped groove body is greater than the thickness of the right thoracic spine fixing plate.

Further, the curvature of the lower part of the side wall of the left lumbar vertebrae fixation plate and the right lumbar vertebrae fixation plate at the ilium of the human body is adapted to the curve surrounding the ilium wings on both sides.

Further, the adjustable draw rod includes a hollow rod, a fully threaded rod, and a first nut and a second nut that are both matched with the threads of the fully threaded rod, the first nut is located at one end of the hollow rod and rotates freely, and the fully threaded rod One end passes through the first nut and is inserted into the cavity of the hollow rod, and the second nut is sleeved on the rod body of the fully threaded rod.

Further, the adjustable thoracolumbar traction orthopaedic fixator also includes an inner lining, and the inner linings are all provided on the left thoracic spine fixing plate, the right thoracic spine fixing plate, the left lumbar spine fixing plate and the right lumbar spine fixing plate. It also includes an inflatable air bag, and an inflatable air bag is arranged between the left thoracic vertebrae fixing plate, the right thoracic vertebrae fixing plate, the left lumbar vertebrae fixing plate and the right lumbar vertebrae fixing plate and their inner linings.

Further, connect the two adjustable traction rods of the left thoracic spine fixation plate and the left lumbar spine fixation plate, one of which is located at the scapular line of the human body in the vertical direction, and the other is located at the clavicle of the human body in the vertical direction. At the midline; 2 adjustable traction rods connecting the right thoracic spine fixation plate and the right lumbar spine fixation plate, one of which is located at the scapular line of the human body in the vertical direction, and the other is located at the clavicle of the human body in the vertical direction. at the midline.

Further, the left thoracic spine fixation plate, the right thoracic spine fixation plate, the left lumbar spine fixation plate and the right lumbar spine fixation plate are all processed from medical polypropylene.

The beneficial effect of the adjustable thoracolumbar traction orthopaedic fixator of the present invention is that, through the left and right side fixing parts, and the structure of the upper and lower thoracic and lumbar spine fixing plates, the upper body parts of the thoracic and lumbar spine patients can be effectively fixed, and at the same time , combined with adjustable traction rods and inflatable airbags, targeted adjustment according to the specific scoliosis of the patient, the orthopedic effect is better; the use of polypropylene material processing fixed plate, combined with lining, make the entire fixator and the human body The contact is more comfortable; the fixator can play a good role in traction, fixation and orthopaedics, and effectively prevent the occurrence of related complications such as thoracolumbar fractures or postoperative bedridden fractures, and postoperative internal fixation loosening and fracture. It can effectively correct deformities such as scoliosis and prevent its continued development, so that patients with thoracolumbar diseases can walk safely and reliably in the early stage.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the adjustable thoracolumbar traction orthopaedic fixator of the present invention;

Fig. 2 is the side view structure schematic diagram of the adjustable thoracolumbar traction orthopaedic fixator of the present invention;

Fig. 3 is the three-dimensional structure schematic diagram of the adjustable thoracolumbar traction orthopaedic fixator of the present invention;

FIG. 4 is a schematic structural diagram of the adjustable drawbar of the present invention.

The codes in the accompanying drawings are respectively: left fixation part 1, left thoracic spine fixation plate 1-1, left lumbar spine fixation plate 1-2, right fixation part 2, right thoracic spine fixation plate 2-1, right lumbar spine Fixed plate 2-2, adjustable draw rod 3, hollow rod 3-1, fully threaded rod 3-2, first nut 3-31, second nut 3-32, adjustable fixing belt 4, first arc groove 5-1. The second arc-shaped groove 5-2, the third arc-shaped groove 6-1, and the fourth arc-shaped groove 6-2.

Detailed ways

As shown in Figures 1 to 4, an adjustable thoracolumbar traction orthopaedic fixator includes a left fixation part 1, a right fixation part 2, an adjustable traction rod 3, an inner lining and an inflatable airbag, wherein the left The fixed part 1 and the right fixed part 2 are in a mirror-symmetrical structure.

The left fixation part 1 includes a left thoracic spine fixation plate 1-1 and a left lumbar spine fixation plate 1-2 arranged in sequence from top to bottom and connected by two adjustable traction rods 3; wherein, the left thoracic spine fixation plate 1 -1 and the left lumbar spine fixation plate 1-2 are U-shaped plate structures processed from medical polypropylene, and their respective curvatures are adapted to the curve of the human body; among the two adjustable traction rods 3, wherein One is located at the scapular line of the human body in the vertical direction, and the other is located at the midclavicular line of the human body in the vertical direction.

The right fixation part 2 includes a right thoracic spine fixation plate 2-1 and a right lumbar spine fixation plate 2-2, which are arranged in order from top to bottom and connected by two adjustable traction rods 3; wherein, the right thoracic spine fixation plate 2 -1 and the right lumbar spine fixation plate 2-2 are U-shaped plate structures processed from medical polypropylene, and their respective curvatures are adapted to the curve of the human body; among the two adjustable traction rods 3, wherein One is located at the scapular line of the human body in the vertical direction, and the other is located at the midclavicular line of the human body in the vertical direction.

The opening of the left thoracic spine fixation plate 1-1 is connected with the opening of the right thoracic spine fixation plate 2-1 by adjusting the fixation belt 4, and the opening of the left lumbar spine fixation plate 1-2 is connected with the right lumbar spine fixation plate 2-2 At the opening, it is connected by an adjustable fixing strap 4.

The inflatable airbags are respectively arranged on the inner side of the left thoracic vertebrae fixing plate 1-1, the right thoracic vertebrae fixing plate 2-1, the left lumbar vertebrae fixing plate 1-2 and the right lumbar vertebrae fixing plate 2-2, and the inner linings are respectively arranged on the inner side of each The inner side of the inflatable bladder on the inner side of the fixed plate.

The middle part of the upper edge of the left thoracic vertebrae fixation plate 1-1 is provided with a downwardly concave first arc groove 5-1 at the lower part of the human axilla; There is a downwardly concave second arc-shaped groove 5-2 at the place, and in the first arc-shaped groove 5-1 and the second arc-shaped groove 5-2, the levels near the front wall of the armpit and the rear wall of the armpit are all higher than The horizontal height of the axillary bottom forms a shape with high sides and a low middle, so as not to compress the patient's brachial plexus and blood vessels; the width of the first arc groove 5-1 is greater than the thickness of the left thoracic spine plate 1-1, The width of the groove body of the second arc groove 5-2 is larger than the thickness of the right thoracic vertebrae fixation plate 2-1, so that the arc groove under the armpit is appropriately widened to increase the comfort of the patient; the left lumbar spine plate 1- 2 and the lower part of the side wall of the right lumbar spine fixation plate 2-2 and the curvature of the ilium of the human body are all adapted to the curve surrounding the ilium wings on both sides, reducing the compression of the patient's ilium by the fixation plate, and at the same time. The iliac wings on both sides can be used to better entrust the fixed plate.

The adjustable draw rod 3 includes a hollow rod 3-1, a fully threaded rod 3-2, and a first nut 3-31 and a second nut 3-32 that are all matched with the threads of the fully threaded rod 3-2. The first nut 3-31 is located at one end of the hollow rod 3-1 and can be freely rotated at this end. One end of the fully threaded rod 3-2 passes through the first nut 3-31 and is inserted into the cavity of the hollow rod 3-1. Two nuts 3-32 are sleeved on the rod body of the fully threaded rod 3-2.

The method of using the adjustable thoracolumbar traction orthopaedic fixator of the present invention is to place the left fixation part 1 and the right fixation part 2 on both sides of the patient's upper body respectively, so that the first part of the upper edge of the left thoracic spine fixation plate 1-1 An arc-shaped groove 5-1 and a second arc-shaped groove 5-2 on the upper edge of the right thoracic vertebrae fixation plate 2-1 are just stuck under the patient's axilla, respectively, and the third arc on the lower edge of the left lumbar vertebrae fixation plate 1-2 The groove 6-1 and the fourth arc groove 6-2 on the lower edge of the right lumbar vertebrae fixation plate 2-2 are just above the patient's ilium respectively; Adjust the positions between the left thoracic vertebrae and lumbar vertebrae fixation plates, and between the right thoracic and lumbar vertebrae fixation plates, and fix the left and right fixed parts through the adjustable fixing belt 4.

The left and right thoracic spine fixation plates and the left and right lumbar spine fixation plates are all U-shaped plate structures, so that the device can fix the upper body of the patient through both sides of the human body, which is different from the existing two-piece chest and back. Fixed mode, the structure of the present application can better correct scoliosis. At the same time, the curvature of each fixed plate is adapted to the curve of the human body, that is, the anterior sides of the left and right thoracic vertebrae fixed plates are shaped in the approximate shape of the human thorax, and the rear sides are shaped in the approximate shape of the human back. The axilla is appropriately widened, similar in structure to the axillary part of the axillary crutches, and the brachial plexus and blood vessels near the axilla are properly suspended so that they are fully in contact with the lateral chest wall and the front and rear walls of the axilla. And then reduce the compression on the brachial plexus and blood vessels; the main structures of the left and right lumbar vertebrae fixation plates are shaped in the general shape of the human pelvis and lower abdomen, and the lower edge is shaped in the shape of the ilium, so that the upper edge of the pelvis and the lower abdomen are shaped. The iliac spine is fully matched with the lumbar spine fixation plate, so that the human body has a better supporting effect on the lumbar spine fixation plate. In addition, the left and right thoracic spine fixation plates and the left and right lumbar spine fixation plates are all made of medical polypropylene plastic, which is more comfortable in contact with the human body and has a higher degree of fit; It is mainly composed of sticky cloth, sponge, nylon belt, etc. The part in contact with the skin is made of sweat-absorbing and breathable material, which can effectively buffer the direct contact between the fixing plate and the human body, and is more conducive to the patient's perspiration and increase the comfort of the patient. .

By placing an adjustable inflatable air bag between the fixation plate and the inner lining, the correction of scoliosis is more comprehensive and effective; specifically, for those who do not need spinal correction (eg, patients with thoracolumbar fractures or thoracolumbar surgery) , the inflatable air bag is a uniform, wide and flat air bag, so that the entire fixator can be fully and effectively contacted with the body; for patients whose spine is involved in orthopedics, the inflatable air bag can be designed into various shapes according to needs, and is specifically adhered to the thoracic and lumbar vertebrae. The inside of the corresponding fixation plate on the convex side, at the same time, inflates and reshapes the spine as needed.

The adjustable traction rod 3 makes a proper gap between the thoracic and lumbar vertebrae fixed plates, leaving room and space for the adjustment of the distance between the thoracic and lumbar vertebrae, and the gap is not too wide, otherwise it is easy to cause leakage of the inflatable air bag and reduce the fixation. Reliability flaws. Two adjustable traction rods 3 are connected to the upper and lower thoracic and lumbar vertebrae fixation plates, and the adjustable traction rods 3 roughly correspond to the midline of the clavicle and the scapular line of the human body, which can further enhance the functions of traction, fixation, and correction. Specifically, the height of the adjustable traction rod 3 is adjusted according to the patient's tolerance, so as to realize traction adjustment, reduce the load-bearing of the spinal fracture site and the operation area, and have a good traction effect for patients with scoliosis; For scoliosis, adjust the traction rods in different directions according to the situation of scoliosis, so that the entire fixator is opposed to the patient's spine and traction correction.

In addition, the structure of the adjustable drawbar 3 is mainly composed of a hollow rod 3-1 inserted into a fully threaded rod 3-2, and at the same time, a first nut 3-31 is fixedly connected to one end of the hollow rod 3-1, and the A nut 3-31 matches the thread of the fully threaded rod 3-2, so that by rotating the first nut 3-31, the hollow rod 3-1 can be freely lifted up and down along the body of the fully threaded rod 3-2, and then the adjustable Adjust the overall length of the drawbar 3; when it is adjusted to the proper position, connect it with the first nut 3-31 on the hollow rod 3-1 by rotating the second nut 3-32 installed on the rod body of the fully threaded rod 3-2 Tighten each other to prevent the hollow rod 3-1 from loosening or sliding.

Claims (9)

1. a kind of adjustable Thoracolumbar disk draws orthopedic fixator, which is characterized in that fixed including left side fixed part (1) and right side Portion (2)；

The left side fixed part (1) includes from top to bottom being arranged successively and by the left side of 2 adjustable draw bar (3) connections Thoracic vertebrae fixed plate (1-1) and left side lumbar vertebrae fixed plate (1-2)；

The right side fixed part (2) includes from top to bottom being arranged successively and by the right side of 2 adjustable draw bar (3) connections Thoracic vertebrae fixed plate (2-1) and right side lumbar vertebrae fixed plate (2-2)；

The left side thoracic vertebrae fixed plate (1-1), left side lumbar vertebrae fixed plate (1-2), right side thoracic vertebrae fixed plate (2-1) and right side lumbar vertebrae Fixed plate (2-2) is U-shaped board structure and its respective curvature is adapted with the curve of human body；

The opening of the left side thoracic vertebrae fixed plate (1-1) and the opening and left side lumbar vertebrae of right side thoracic vertebrae fixed plate (2-1) The opening of fixed plate (1-2) and the opening of right side lumbar vertebrae fixed plate (2-2) pass through adjustable fixing belt (4) connection.

2. adjustable Thoracolumbar disk as described in claim 1 draws orthopedic fixator, which is characterized in that the left side thoracic vertebrae is solid It is offered respectively in the middle part of fixed board (1-1) and the upper limb of right side thoracic vertebrae fixed plate (2-1), at human body armpit lower section to recessed The first arc groove (5-1) and the second arc groove (5-2), in first arc groove (5-1) and the second arc groove (5-2), lean on Level height at nearly armpit antetheca, armpit rear wall is above the level height at armpit bottom.

3. adjustable Thoracolumbar disk as claimed in claim 2 draws orthopedic fixator, which is characterized in that first arc groove The width of (5-1) groove body is greater than the thickness of left side thoracic vertebrae fixed plate (1-1), and the width of the second arc groove (5-2) groove body is big In the thickness of right side thoracic vertebrae fixed plate (2-1).

4. adjustable Thoracolumbar disk as described in claim 1 draws orthopedic fixator, which is characterized in that the left side lumbar vertebrae is solid The lower sidewall of fixed board (1-2) and right side lumbar vertebrae fixed plate (2-2), the curvature at human body ilium with wrapping two sides The curve of alaossisilii is adapted.

5. adjustable Thoracolumbar disk as described in claim 1 draws orthopedic fixator, which is characterized in that the adjustable traction Bar (3) includes hollow stem (3-1), Full threaded rod (3-2), and the first spiral shell to match with the screw thread of Full threaded rod (3-2) Female (3-31) and the second nut (3-32), first nut (3-31) are located at one end of hollow stem (3-1) and rotate freely, institute The one end for stating Full threaded rod (3-2) passes through the first nut (3-31) and is plugged in the cavity of hollow stem (3-1), second spiral shell Female (3-32) is set on the body of rod of Full threaded rod (3-2).

6. adjustable Thoracolumbar disk as described in claim 1 draws orthopedic fixator, which is characterized in that it further include liner, institute Left side thoracic vertebrae fixed plate (1-1), right side thoracic vertebrae fixed plate (2-1), left side lumbar vertebrae fixed plate (1-2) and right side lumbar vertebrae is stated to fix Liner is provided on the inside of plate (2-2).

7. adjustable Thoracolumbar disk as claimed in claim 6 draws orthopedic fixator, which is characterized in that further include inflating air Capsule, the left side thoracic vertebrae fixed plate (1-1), right side thoracic vertebrae fixed plate (2-1), left side lumbar vertebrae fixed plate (1-2) and right side waist Air bag is provided between vertebra fixed plate (2-2) and the respectively liner of inside.

8. adjustable Thoracolumbar disk as described in claim 1 draws orthopedic fixator, which is characterized in that connection left side thoracic vertebrae is solid 2 adjustable draw bars (3) of fixed board (1-1) and left side lumbar vertebrae fixed plate (1-2), wherein 1 is located at people in the vertical direction At the scapular line of body, another 1 in the vertical direction at the linea medioclavicularis of human body；Connection right side thoracic vertebrae fixed plate (2-1) and The adjustable draw bar (3) of 2 of right side lumbar vertebrae fixed plate (2-2), wherein 1 is located at the scapular line of human body in the vertical direction Place, another 1 in the vertical direction at the linea medioclavicularis of human body.

9. adjustable Thoracolumbar disk as described in claim 1 draws orthopedic fixator, which is characterized in that the left side thoracic vertebrae is solid Fixed board (1-1), right side thoracic vertebrae fixed plate (2-1), left side lumbar vertebrae fixed plate (1-2) and right side lumbar vertebrae fixed plate (2-2) by Polypropylene for medical article is process.