CN211884302U

CN211884302U - Novel scoliosis traction wheelchair

Info

Publication number: CN211884302U
Application number: CN201922416102.2U
Authority: CN
Inventors: 汪飞; 唐凯; 林刚
Original assignee: Nanjing Childrens Hospital of Nanjing Medical University
Current assignee: Nanjing Childrens Hospital of Nanjing Medical University
Priority date: 2019-12-29
Filing date: 2019-12-29
Publication date: 2020-11-10
Anticipated expiration: 2029-12-29

Abstract

The invention relates to a novel scoliosis traction wheelchair, which consists of a foldable wheelchair, an adjustable support frame and a spring type gravity traction device. The foldable wheelchair part consists of pedals, front caster wheels, rear main wheels, a cushion, a back cushion and a foldable crossed steel frame; the adjustable support frame consists of a bottom connecting cross rod, an upper connecting cross rod, a longitudinal rod, a height adjusting nut, a ferrule, a top bend and a front fork; the spring type gravity traction device consists of a high-precision spring, a triangular connecting disc, a pulley block, a head ring and a traction rope. The scoliosis traction wheelchair is mainly used for the traction orthopedic treatment of severe scoliosis. The freedom of life of the patient can be expanded while traction treatment is carried out; the flexibility and stability can be realized on the traction force, and the safety of the traction process is greatly improved; meanwhile, the patient can adjust and remove the traction force by himself, and the convenience of traction treatment operation is improved. The invention has the advantages of ingenious design, convenient use and wide application prospect.

Description

Novel scoliosis traction wheelchair

Technical Field

The invention relates to a traction wheelchair, in particular to a novel scoliosis traction wheelchair, and belongs to the technical field of medical instruments.

Background

According to the Scoliosis Research Society (SRS) standard, the Scoliosis angle is more than 45-50 degrees to reach the standard of operation. However, for children before the age of 10 years, fusion surgery cannot be performed prematurely due to the developmental needs of the spine, pectoralis and lungs. In addition, for severe scoliosis deformities over 90 ° over 10 years of age, the surgical risk is extremely high. Therefore, the spinal halo gravity traction technology which can be used for prolonged surgery treatment of early-onset scoliosis and preoperative traction loosening of severe scoliosis is currently widely applied to clinical treatment. The main principle is that the gravity of a heavy object is utilized to draw a head ring fixed on the skull of a patient to realize the axial traction effect on the vertebra. Existing literature reports yield: for severe early scoliosis deformity, the traction treatment can play a role in delaying the progress of the deformity and prolonging the operation time; for patients with severe spinal deformity, halo traction for 2-3 weeks before the operation can improve the flexibility of the deformity and reduce the difficulty and risk of orthopedic operation.

The existing spinal halo gravity traction technology mainly comprises bed traction and wheelchair traction, wherein a patient needs to be continuously bedridden under the former condition, and the patient can be dragged while a certain living freedom degree is kept by the latter condition. The existing wheelchair traction technology has the following problems:

1) the traction process mainly uses a weight or a sand bag, the weight of a traction weight needs to be gradually increased by an assistant when the traction is started, and the traction gravity cannot be adjusted by a patient;

2) the weight or other heavy objects are improperly operated in the using process, so that the heavy objects can be injured by crashing, and potential safety hazards exist for people to be towed, assisting people and surrounding people.

3) When a patient sits on the traction wheelchair, the traction force can be obviously changed by small displacement action on the side of the head, and the flexible stability of the traction force cannot be realized. Therefore, the head can only do slight rotation action in order to keep the traction force stable.

4) When the traction wheelchair jolts through an obstacle or tilts backwards or turns over, the traction force of the traction weight on the head and the neck can change suddenly, and the head and the neck are easily seriously injured.

Therefore, a new solution to this technical problem is urgently needed.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides the novel scoliosis traction wheelchair, and the scheme can realize flexible stability in traction force and greatly improve the safety in the traction process; meanwhile, the patient can adjust and remove the traction force by himself, and the convenience of traction treatment operation is improved.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a novel scoliosis pulls wheelchair, its characterized in that, it includes collapsible wheelchair subassembly, adjustable support frame and spring gravity draw gear to pull the wheelchair, adjustable support frame and spring gravity draw gear all set up on collapsible wheelchair.

As an improvement of the present invention, the foldable wheelchair assembly comprises pedals, front caster wheels, rear main wheels, a seat cushion, a back cushion and a foldable cross wheelchair steel frame; the foldable crossed wheelchair steel frame is used for supporting the whole wheelchair assembly, a cushion and a back cushion are arranged on the foldable crossed wheelchair steel frame, and the pedals are arranged on the left side and the right side of the front lower part of the wheelchair; the front caster wheels are arranged on two sides of the front part of the wheelchair, the diameter of the rear main wheel is larger than that of the front caster wheels, and the rear caster wheels are arranged on the rear part of the front caster wheels and are positioned on two sides of the wheelchair main body.

As an improvement of the invention, the adjustable support frame is composed of a bottom connecting cross rod, an upper connecting cross rod, a longitudinal rod, a height adjusting nut, a top bending rod and a front fork. The longitudinal rods are main force supporting rods and are fixedly connected with the rear steel frame part of the wheelchair through the bottom and upper connecting cross rods; the height adjusting nut is arranged on the longitudinal rod and used for adjusting the height of the longitudinal rod, one end of the top bending rod is connected with the longitudinal rod, and the other end of the top bending rod is connected with the front fork.

As an improvement of the invention, the spring type gravity traction device consists of a high-precision spring, a triangular connecting disc, a pulley block, a head ring and a traction rope; the number of the high-precision springs is 3, the high-precision springs are respectively connected with the top of the support frame and the front of the support frame in a forked mode and then connected through a triangular connecting disc on the lower portion, the upper end of the pulley block is connected with the triangular connecting disc, and the lower end of the pulley block is connected with a joint ring.

As an improvement of the invention, the spring center shaft is provided with a safety steel wire which is connected with the top of the support frame and the connecting disc, so that the spring is prevented from sliding and splashing after being broken in the using process.

As an improvement of the invention, the center of the triangular connecting disc is connected with a pulley block by penetrating a longitudinal hole, a rope is arranged below the pulley block and then tied on a traction head ring, and the pulley block is controlled by the traction rope. When in use, the rope is pulled downwards to a proper position and then clamped upwards into the clamping seam at the edge of the pulley block, so that the pulley block can be locked, and then the rope is pulled downwards, so that the pulley block can be unlocked and continuously controlled. The extra pulling rope can be fastened to a ferrule on the rear longitudinal bar.

As a modification of the present invention, the top bent rod is provided in an L-shape.

Compared with the prior art, the invention has the following advantages: 1) according to the technical scheme, a traction weight is not additionally used in the traction process, the self weight of a patient is utilized for traction, and the safety threat to the patient and surrounding personnel is avoided; 2) the traction force of the scheme can be adjusted by the towed person according to the self condition, and other people are not required to assist in operation. 3) This scheme is owing to used 3 spring equilateral combinations, when the activity space of drawing in-process patient's head increases, can keep the relative flexibility of traction force stable. 4) According to the scheme, when backward tilting or side turning occurs, the traction force is automatically reduced or even disappears, instantaneous violent pulling on the neck of a patient cannot be caused, and the recovery of the traction force in the position recovery process also has time for buffering; in special cases, the traction force can be removed when the patient stands up, so that the safety of the head and the neck is guaranteed; the invention has the advantages of ingenious design and convenient use, overcomes the defects of the existing device and has wide application prospect.

Drawings

FIG. 1 is a schematic perspective view of the right oblique side provided by the present invention;

FIG. 2 is a schematic diagram of the right side structure provided by the present invention;

FIG. 3 is a schematic view of a backside structure provided by the present invention;

FIG. 4 is a schematic diagram of a front structure provided by the present invention;

in the figure: 1. pedaling; 2. a front caster; 3. a rear main wheel; 4. a cushion; 5. back cushion; 6. a foldable cross wheelchair steel frame; 7. the bottom is connected with a cross bar; 8. the upper part is connected with a cross bar; 9. a longitudinal rod; 10. a height adjustment nut; 11. a top flexure bar; 12. front bifurcation; 13. a high precision spring; 14. a triangular connecting plate; 15. a pulley block; 16. a head ring; 17. a hauling rope; 18. and (4) looping.

Detailed Description

For the purposes of promoting an understanding and appreciation of the invention, reference will now be made to the following detailed description of the invention taken in conjunction with the accompanying drawings.

Example 1: referring to fig. 1-4, the novel scoliosis traction wheelchair comprises a foldable wheelchair, an adjustable support frame and a spring type gravity traction device, wherein the adjustable support frame and the spring type gravity traction device are arranged on the foldable wheelchair. Realize the flexible stability of the longitudinal traction force of the spine under the premise of certain living freedom of the patient, be convenient for the self-regulation of the person being drawn, and improve the safety of the traction process. In the scheme, the foldable wheelchair component comprises pedals 1, front caster wheels 2, rear main wheels 3, a cushion 4, a back cushion 5 and a foldable cross wheelchair steel frame 6; the foldable cross wheelchair steel frame 6 is used for supporting the whole wheelchair component, a cushion 4 and a back cushion 5 are arranged on the foldable cross wheelchair steel frame, and the pedals 1 are arranged on the left side and the right side of the front lower part of the wheelchair; the front caster wheels 2 are arranged on two sides of the front part of the wheelchair, the rear main wheel 3 is larger in diameter than the front caster wheels, is arranged on the rear part of the front caster wheels and is positioned on two sides of the wheelchair main body, and the adjustable support frame consists of a bottom connecting cross rod 7, an upper connecting cross rod 8, a longitudinal rod 9, a height adjusting nut 10, a top bending rod 11 and a front fork 12; the longitudinal rod 9 is a main force support rod and is fixedly connected with the rear steel frame 6 of the wheelchair through the bottom and upper connecting cross rods 7 and 8; the height adjusting nut 10 is arranged on the longitudinal rod 9 and used for adjusting the height of the longitudinal rod, the top bending rod 11 is L-shaped, one end of the top bending rod 11 is connected with the longitudinal rod, the other end of the top bending rod is connected with the front fork, and the spring type gravity traction device consists of a high-precision spring 13, a triangular connecting disc 14, a pulley block 15, a head ring 16 and a traction rope 17; the high-precision spring 13 is provided with 3 springs which are respectively connected with the top of the support frame and a front fork 12 and then connected with a triangular connecting disc 14 below, the upper end of the pulley block is connected with the triangular connecting disc 14, the lower end of the pulley block is connected with a connecting ring 16, a safety steel wire penetrates through a middle shaft of the spring and is connected with the top of the support frame and the connecting disc so as to prevent the spring from sliding and splashing after being broken in the using process, the center of the triangular connecting disc 14 penetrates through a longitudinal hole to be connected with a pulley block 15, a rope is arranged below the pulley block and then ties a traction head ring, and the pulley block is controlled by. When in use, the rope is pulled downwards to a proper position and then clamped upwards into the clamping seam at the edge of the pulley block, so that the pulley block can be locked, and then the rope is pulled downwards, so that the pulley block can be unlocked and continuously controlled. The extra pulling rope can be fastened to a loop 18 on the rear longitudinal bar 9. In the scheme, as shown in figure 1, an adjustable support frame and a spring type gravity traction device are arranged at the rear of the foldable wheelchair, so that traction treatment is realized, and a certain degree of freedom of life is guaranteed. The towed person can sit on the towing wheelchair to control the wheelchair to do activities in a room or outdoors. A divergent branch 12 is formed at the top end of the adjustable support frame, a high-precision spring 13 is arranged below the adjustable support frame, and the adjustable support frame is connected with a pulley block 15 and a traction head ring 16 below the adjustable support frame through a triangular connecting disc 14. The traction can be carried out by utilizing the gravity of the patient when the patient sits down after the patient is fixed to the cranium of the person to be dragged, extra traction weights such as a weight and a sand bag are not needed, and the use is simple and convenient. The high-precision spring 13 can buffer the pulling force through the deformation of the high-precision spring when being pulled, and the flexibility and stability of the pulling force can be still realized even if the head posture of a patient is changed. Because the traction force is the self gravity of the person to be towed, when the wheelchair tilts backwards or turns on the side, the traction force is automatically reduced or even disappears, the neck of the patient cannot be instantly and violently dragged, and the recovery of the traction force in the position recovery process also has time for buffering; the traction force can be removed when the patient stands up, and the safety of the head and the neck is ensured.

The working process is as follows: for severe early scoliosis deformity, the traction treatment can play a role in delaying the progress of the deformity and prolonging the operation time; for patients with severe spinal deformity requiring surgical treatment, halo traction for 2-3 weeks before surgery can improve flexibility of deformity and reduce difficulty and risk of orthopedic surgery. The principle is as follows: the infant patient uses the screw to fix the traction head ring on the skull of the person to be dragged under the state of general anesthesia or local anesthesia. The traction device is then used for longitudinal traction of the spine by lying in bed or sitting in a wheelchair. The invention belongs to a traction wheelchair, which can keep a certain degree of freedom of life while carrying out traction treatment. The specific using process is as follows:

referring to fig. 1-4, after the rope is pulled under general or local anesthesia and the head ring 16 is pulled up, the rope on the head ring can be automatically hooked under the pulley block 15 of the invention; simultaneously, pulling a traction rope 17 on the pulley block by hand; the towed person then sits down and then pulls the towing rope to adjust the pulley block by oneself, feel the change of the towing force, mark the position of the towing rope when the suitable force that can be accepted; then the traction rope is lifted and clamped in an outlet gap of the pulley block after standing up, and the suspended rope tail is put into a ferrule 18 of a rear longitudinal rod. Then sitting down and carrying out traction. When the traction treatment is suspended, the rope on the head ring can be untied from the bottom of the pulley block 15 by directly standing. And (5) carrying out traction treatment again, and directly hooking the rope on the head ring at the bottom of the pulley block.

It should be noted that the above-mentioned embodiments do not limit the scope of the present invention, and equivalents and substitutions made on the basis of the above-mentioned embodiments are included in the scope of the present invention.

Claims

1. The utility model provides a novel scoliosis pulls wheelchair, its characterized in that, it includes collapsible wheelchair subassembly, adjustable support frame and spring gravity draw gear to pull the wheelchair, adjustable support frame and spring gravity draw gear all set up on collapsible wheelchair.

2. The novel scoliosis traction wheelchair according to claim 1, characterized in that said foldable wheelchair components comprise pedals (1), front caster (2), rear main wheels (3), seat cushions (4), back cushions (5) and foldable cross-wheelchair steel frames (6); the foldable cross wheelchair steel frame (6) is used for supporting the whole wheelchair component, a cushion (4) and a back cushion (5) are arranged on the foldable cross wheelchair steel frame, and the pedals (1) are arranged on the left side and the right side of the front lower part of the wheelchair; the front caster wheels (2) are arranged on two sides of the front part of the wheelchair, and the rear main wheels (3) are larger in diameter than the front caster wheels, arranged on the rear parts of the front caster wheels and positioned on two sides of the wheelchair.

3. The new scoliosis traction wheelchair according to claim 1, characterized in that said adjustable support frame is composed of a bottom connecting crossbar (7), an upper connecting crossbar (8), longitudinal rods (9), height adjusting nuts (10), top bending rods (11) and front forks (12);

the longitudinal rods (9) are main force supporting rods and are fixedly connected with a rear steel frame (6) of the wheelchair through a bottom connecting cross rod (7) and an upper connecting cross rod (8);

the height adjusting nut (10) is arranged on the longitudinal rod (9) and used for adjusting the height of the longitudinal rod,

one end of the top bending rod (11) is connected with the longitudinal rod (9), and the other end is connected with the front fork (12).

4. The new scoliosis traction wheelchair according to claim 1, characterized in that said spring-type gravity traction means consist of high precision springs (13), triangular connection plates (14), pulley blocks (15), head rings (16), traction ropes (17); the high-precision spring assembly is characterized in that 3 high-precision springs (13) are respectively connected with the top of the support frame and a front fork (12) and then connected through a triangular connecting disc (14) below, the upper end of the pulley block is connected with the triangular connecting disc (14), and the lower end of the pulley block is connected with a joint ring (16).

5. The scoliosis traction wheelchair as claimed in claim 4, wherein the spring middle shaft is penetrated with a safety steel wire and connected with the top of the support frame and the connecting disc.

6. The scoliosis traction wheelchair as claimed in claim 4, wherein the triangular connecting plate (14) is connected with a pulley block (15) through a central longitudinal hole, a rope is arranged below the pulley block to tie the traction head ring, and the pulley block is controlled by a traction rope (17).

7. The new scoliosis traction wheelchair according to claim 3, characterized in that said top curved bar (11) is provided with an L-shape.