阅读说明：本技术 缓解腰椎间盘突出者腰痛症状的座椅 (Chair for relieving lumbago of lumbar disc herniation patient ) 是由 范玺 于 2020-07-22 设计创作，主要内容包括：本发明涉及座椅技术领域,具体涉及缓解腰椎间盘突出者腰痛症状的座椅,包括：支撑胸骨和前胸壁的由靠垫、第三销柱、靠背支架及套筒组成的靠背,以及支撑臀部和大腿的远离靠背支架的一端可向上翘起与水平面呈锐角夹角且角度可调节的底座和坐垫,所述底座由底座支撑杆和固定在底座托盘平行于水平面的底座支架支撑。本座椅靠背对胸骨和前胸壁有效支撑可减轻腰椎间盘承受的腰椎间盘以上身体的压力负荷,可使腰段脊柱自然伸直整个腰椎间盘均匀承受纵向压力,可消除肌肉收缩维持坐位前屈姿势对腰椎间盘产生的负荷,以上从多角度减轻腰椎间盘突承受的压力负荷,减轻腰椎间盘突出患者的腰痛症状。(The invention relates to the technical field of seats, in particular to a seat for relieving lumbago of a lumbar disc herniation person, which comprises the following components: the backrest consisting of the back cushion, the third pin, the backrest support and the sleeve for supporting the sternum and the front chest wall, and the base and the cushion which can be adjusted in angle and can upwards tilt and form an acute included angle with the horizontal plane at one end of the backrest support for supporting the hip and the thigh, wherein the base is supported by the base support rod and the base support fixed on the base tray and parallel to the horizontal plane. The backrest can effectively support the sternum and the anterior chest wall, can reduce the pressure load of the body above the lumbar intervertebral disc born by the lumbar intervertebral disc, can ensure that the whole lumbar intervertebral disc is naturally straightened to bear the longitudinal pressure, can eliminate the load generated by the muscle contraction to maintain the forward bending posture of the sitting position on the lumbar intervertebral disc, and can reduce the pressure load born by the lumbar intervertebral disc protrusion from multiple angles and relieve the lumbago symptom of the lumbar intervertebral disc protrusion patient.)

1. A chair for relieving lumbago of a lumbar disc herniation person, which is characterized by comprising: the backrest comprises a back cushion (1), a third pin column (2), a backrest support (4) and a sleeve (3) for supporting the sternum and the front chest wall, and a base (8) which can be tilted upwards to form an acute included angle with the horizontal plane and has an adjustable angle and supports the hip and the thigh, wherein one end of the base, which is far away from the backrest support (4), can tilt upwards.

2. The chair for relieving lumbago of lumbar disc herniation person in accordance with claim 1, characterized in that the base (8) is supported by a base bracket (22) and a base support rod (10);

the base bracket (22) is fixedly arranged on the base tray (15) and is parallel to the horizontal plane;

one end of the base (8) and one end of the base bracket (22) close to the backrest bracket (4) are movably connected through a pin by a first pin (14), so that an acute included angle is formed between the base (8) and the base bracket (22);

the base support rod (10) enables the base and the base support to be fixed at a preset angle.

3. The chair for relieving lumbago of lumbar disc herniation as claimed in claim 2, wherein the optimum angle of the preset angle between the base and the base bracket is the minimum angle at which lumbago is significantly relieved or disappeared without chest distress, generally corresponding to a height of about 4-6 cm of the base rising away from the end of the first pin (14).

4. The chair for relieving lumbago of lumbar disc herniation person in accordance with claim 2, characterized in that a pin boss (11) is fixedly provided on the other end of each base support rod (10);

more than two grooves (12) are respectively arranged on two sides of the base support (22);

on the base support (22), the shape of each groove (12) is matched with the pin column protrusion (11) of the base support rod (10) on the corresponding side;

when the pin projection (11) is positioned in the groove (12) on the corresponding side farthest from the first pin (14), the base (8) is parallel to the horizontal plane.

5. The chair for relieving lumbago of lumbar disc herniation person in accordance with claim 1, characterized in that the upper end of the backrest support (4) is provided with a cushion (1) contacting with the anterior chest wall of the patient;

a plurality of fixing grooves (6) are formed in the backrest support (4) along the length direction;

the back cushion (1) is arranged on the backrest support (4) through the sleeve (3), can move up and down along the backrest support (4) through the adjusting button (5), and is fixed on a preset fixing groove (6).

6. Seat for the relief of symptoms of lumbago in lumbar intervertebral disc as claimed in claim 5, characterized in that said back cushion (1) is mounted on said sleeve (3) by means of a third pin (2), the inclination angle of said back cushion (1) with respect to said backrest support (4) being adjustable by means of said third pin (2).

7. The seat for relieving lumbago of lumbar disc herniation person in accordance with claim 5, wherein the shape of the back cushion (1) is a rounded rectangle, the length is 15-20 cm, and the width is 15-20 cm; for women, the lower end of the rectangular back cushion (1) is cut off into a sector with two vertexes as circle centers, the radius of the sector is 5cm, and the angle of the sector is 90 degrees;

a soft protective layer is arranged on one surface of the back cushion (1) which is in contact with the chest wall of the patient.

8. The seat for relieving lumbago of lumbar intervertebral disc prolapse according to claim 5, wherein said backrest frame (4) comprises two parallel metal tubes;

the bottoms of the two metal pipes are fixedly connected through a metal clamp (17) and are fixed in a base tray (15) through a fixing bolt (16);

a sliding hole groove which is far away from the direction of the air pressure rod (18) and has the length of 10cm is arranged in the base tray (15);

the fixed bolt (16) for fixing the backrest support (4) moves along the sliding hole groove, so that the backrest support can move to a direction far away from the air pressure rod (18) by a distance of less than 10cm and is fixed by the fixed bolt (16).

9. The seat for relieving lumbago of lumbar intervertebral disc protrusion as claimed in claim 1, further comprising: five-star chair legs (19);

when the backrest support (4) moves to the position farthest from the air pressure rod (18), the droop line of the center of the back cushion (1) is positioned in the arc where the supporting point of the five-star chair leg (19) is positioned, and the nearest distance from the arc is more than or equal to 2 cm;

when the pin column protrusion (11) is positioned in the groove (12) which is farthest away from the first pin column (14) on the corresponding side, the down-plumb lines of the edge of the base (8) are all positioned in the arc where the supporting point of the five-star chair leg (19) is positioned, and the nearest distance from the arc is more than or equal to 2 cm.

10. The seat for relieving lumbago caused by lumbar intervertebral disc protrusion as claimed in claim 2, wherein the intersection point of the axis of the supporting pneumatic rod (18) of the base tray (15) and the plane of the base bracket (22) is one third of the length of the base bracket (22) from the first pin (14).

Technical Field

The invention relates to the technical field of seats, in particular to a seat for relieving lumbago of a lumbar disc herniation person.

Background

The intervertebral disc is composed of upper and lower cartilage plates, a central nucleus pulposus and peripheral fibrous rings. The nucleus pulposus is a jelly-like collagen material, has elasticity and expansibility, and can be deformed under pressure. The front and two sides of the fiber ring are thicker, so the fiber ring has stronger capability of bearing longitudinal pressure; the posterior-lateral aspect is weak and the nucleus is likely to protrude posteriorly and laterally when compressed.

The nucleus pulposus in the standing position bears the weight of the trunk above the plane of the intervertebral disc, and the whole intervertebral disc uniformly bears the longitudinal pressure.

Through lumbar disc manometry, the load of the nucleus pulposus on the standing position under pressure is calculated as 100%, the nucleus pulposus is perpendicular to the sitting position by 150%, and the forward bending of the sitting position (namely, the normal sitting position of working at desk) reaches 270%.

When the seat is bent forwards, the lumbar vertebra protrudes backwards in an arc shape (can be touched by hands), the front narrow part (inner ring) and the back wide part (outer ring) of the lumbar intervertebral space are formed, and the nucleus pulposus of the intervertebral disc deforms and protrudes backwards under the extrusion of the front part.

Lumbar intervertebral disc protrusion is a syndrome which is expressed by intervertebral disc degeneration, annulus fibrosus rupture, stimulation or compression of nucleus pulposus protrusion to nerve roots and cauda equina, and is the most common cause of lumbocrural pain. Patients often have stoop labor or long-term sitting work history. The diagnosis can be made clearly by examination such as CT and MRI.

The non-degenerated intervertebral disc can bear 6865kPa (70 kgf/cm)²) Pressure, but already degenerated discs only require 294kPa (3 kgf/cm)²) The pressure can break. Reducing the pressure born by the lumbar intervertebral disc is an important link for relieving the lumbago symptom of the lumbar intervertebral disc protrusion.

Disclosure of Invention

The invention aims to solve the technical problems that a chair is designed to reduce the pressure load of the nucleus pulposus of the lumbar intervertebral disc from multiple angles as much as possible and relieve the lumbago symptom of the lumbar intervertebral disc protrusion: the pressure load of the body above the intervertebral disc born by the lumbar intervertebral disc is reduced by reducing the backward deformation and the protrusion of the nucleus pulposus of the intervertebral disc under the forward extrusion, and the pressure load of the lumbar intervertebral disc generated by the muscle contraction to maintain the forward bending posture of the sitting position is eliminated.

In order to achieve the technical purpose, the invention provides a brand new seat scheme for relieving lumbago of a lumbar disc herniation person, which is characterized by comprising the following steps: a backrest (comprising a back cushion, a backrest bracket, a third pin and a sleeve) for supporting the sternum and the front chest wall, and a base which supports the buttocks and thighs and is far away from the backrest bracket and can be tilted upwards and form an acute included angle with the horizontal plane.

Further, still include: a base tray;

the base is supported by the base bracket and the base supporting rod;

the base bracket is fixedly arranged on the base tray and is parallel to the horizontal plane;

the base and one end of the base support close to the backrest support are movably connected through a first pin in a pin joint mode, so that an acute included angle is formed between the base and the base support.

The base supporting rod enables the base and the base support to be fixed at a preset angle.

Furthermore, two base support rods are arranged and are respectively and symmetrically arranged on two sides of the base and the base support;

one end of each base supporting rod is hinged to the corresponding side of the base, and the other end of each base supporting rod movably abuts against the corresponding side of the base support.

Still further, a pin boss is fixedly arranged at the other end of each base supporting rod;

more than two grooves are respectively formed in the two sides of the base support;

on the base support, the shape of each groove is matched with the pin column protrusion of the base support rod on the corresponding side.

Still further, one end of each base supporting rod is movably connected with the corresponding side of the base through a second pin in a pin joint mode.

Preferably, the base is parallel to the horizontal plane when each stud projection is located in the groove on the corresponding side furthest from the first stud.

In the technical scheme, a limiting piece is fixedly arranged at one end of the base, which is close to the backrest bracket;

the limiting piece and one end, close to the backrest support, of the cushion are abutted against each other, and the cushion is prevented from moving.

In the technical scheme, after one end of the base, which is far away from the backrest support, is tilted upwards, the minimum included angle between the base and the horizontal plane is formed when the lumbago is relieved or disappears. The height of the base corresponding to the preset angle between the base and the base support, which is far away from the end of the first pin column, is 4-6 cm, so that the lumbago symptom can be obviously relieved.

In the technical scheme, a back cushion which is contacted with the sternum and the front chest wall of the patient is arranged at the upper end of the backrest support;

a plurality of fixing grooves are formed in the backrest bracket along the length direction;

the back cushion is installed on the backrest support through the sleeve, can move up and down along the backrest support through the adjusting button, and is fixed on a preset fixing groove.

Further, the cushion is mounted on the sleeve through a third pin, and the inclination angle of the cushion relative to the backrest support can be adjusted through the third pin.

Preferably, a soft protective layer is arranged on one surface of the cushion, which is in contact with the sternum and the anterior chest wall of the patient;

the shape of the back cushion is a rounded rectangle, the length is 15-20 cm, and the width is 15-20 cm;

if the back cushion is used by women, the lower end of the rectangle is cut off into a sector with two vertexes as circle centers, the radius of the sector is 5cm, and the angle of the sector is 90 degrees.

Preferably, the backrest support comprises two metal tubes parallel to each other;

the bottoms of the two metal pipes are connected through a metal clamp and fixed in the base tray through a fixing bolt;

a sliding hole groove which is far away from the direction of the air pressure rod and has the length of less than 10cm is arranged in the base tray;

the bolt for fixing the backrest support moves along the sliding hole groove, so that the backrest support moves to a direction away from the air pressure bar by a distance of less than 10cm and is fixed by the fixing bolt 16.

Preferably, the method further comprises the following steps: five-star chair legs;

when the backrest support moves to the position farthest from the air pressure rod, the droop line at the center of the back cushion is positioned in the arc where the five-star chair leg supporting point is positioned, and the distance between the droop line and the arc is more than or equal to 2 cm.

In the technical scheme, when the pin column protrusion is positioned in the groove which is farthest away from the first pin column on the corresponding side, the vertical lines of the edge of the base are all positioned in the arc where the five-star chair leg supporting point is positioned, and the distance between the vertical lines and the arc is more than or equal to 2 cm.

In the technical scheme, a pneumatic rod is connected between the base tray and the five-star chair leg;

the air pressure rod lifts the height of the base tray through the deflector rod.

Preferably, the distance from the first pin to the intersection point of the axis of the air pressure rod and the plane of the base support is one third of the length of the base support.

In the invention, one end of the backrest support far away from the hip and thigh can be tilted upwards to form an acute included angle with the horizontal plane, and the angle of the base can be adjusted to keep the body fully leaning forward, the seat backrest can effectively support the sternum and the front chest wall (namely, lie over the seat backrest), and the combined action of the above structures can ensure that the lumbar disc herniation patient can realize the following effects after sitting on the seat:

1. the cushion and the base which support the buttocks and the thighs and are far away from one end of the backrest and are tilted upwards can increase the inclination of the upper body of the body to the seat backrest without increasing the length of the seat base, increase the bearing support of the seat backrest to the sternum and the front chest wall and reduce the weight load of the body above the lumbar intervertebral disc born by the lumbar intervertebral disc.

2. The base with one end tilted upwards and forming an acute angle with the horizontal plane supports the buttocks and the thighs to keep the body fully inclined forwards, the seat backrest effectively supports the sternum and the anterior chest wall, the lumbar segment of the spinal column naturally straightens the whole intervertebral disc to uniformly bear longitudinal pressure, and the phenomenon that when the seat is bent forwards, the lumbar intervertebral space is narrow in front and wide in back, and the nucleus pulposus of the intervertebral disc is extruded, deformed and protruded from the front to the side and the back is avoided.

3. The cushion and the base with one end tilting upwards and forming an acute angle with the horizontal plane support the buttocks and the thighs to keep the body fully leaning forward, the seat back fully and effectively supports the sternum and the front chest wall (equivalent to lying on the seat back), and the muscle contraction is not needed to maintain the sitting forward bending posture, so the load of the muscle contraction for maintaining the sitting forward bending posture on the lumbar intervertebral disc is eliminated. The nucleus pulposus bears pressure, the standing load is calculated as 100%, the forward flexion of the nucleus pulposus in the sitting position reaches 270%, and the muscle contraction load for maintaining the forward flexion of the nucleus pulposus in the sitting position is reduced or eliminated by 170% (270% -100%) at most.

Therefore, the invention fully relieves the pressure load born by the lumbar intervertebral disc and effectively relieves the lumbago symptom of the lumbar keyboard protrusion.

The prior chair technology for patients with lumbar intervertebral disc protrusion and the defects are as follows:

1. adding a waist cushion: the waist back cushion is forwards propped against the lumbar vertebra section protruding backwards in an arc shape, so that the intervertebral disc can evenly bear longitudinal pressure, and the nucleus pulposus of the intervertebral disc is prevented from being extruded forwards and then deforming and protruding backwards. The weight of the trunk above the intervertebral disc plane borne by the lumbar intervertebral disc is not reduced, and the load generated by the muscle contraction maintaining the anteflexion sitting position is not eliminated.

2. The pressure born by the lumbar intervertebral disc is reduced through the suspension device: the load of the weight of the trunk above the intervertebral disc plane born by the lumbar intervertebral disc is reduced by lifting the belt of the waist and the abdomen upwards. The device is similar to an orthopedic traction bed, reduces the load born by the lumbar intervertebral disc by traction of the lower limbs, but the abdominal bridle has no bony support structure, and can not realize the effect of the traction bed on traction of the lower limbs.

The prior similar technology is not suitable for patients with lumbar intervertebral disc protrusion:

1. the forward leaning sitting position correction body-building chair: when the upper half body is inclined forwards in a forward sitting position, if the front chest wall and the sternum are not effectively supported, stronger muscle contraction is needed to keep the upright position of the spine, so that the lumbar intervertebral disc bears larger muscle contraction load than in the upright sitting position; furthermore, the weight of the trunk above the disc plane to which the lumbar disc is subjected is not reduced, and therefore such chairs are not suitable for use by patients with herniated discs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic side view of an embodiment of the present invention;

fig. 2 is a schematic rear view of the embodiment of the present invention.

In the figure, 1 back cushion, 2 third pins, 3 sleeves, 4 back supports, 5 adjusting keys, 6 grooves, 7 cushion, 8 bases, 9 second pins, 10 base supporting rods, 11 pin protrusions, 12 grooves, 13 limiting parts, 14 first pins, 15 base trays, 16 fixing bolts, 17 metal clamps, 18 air pressure bars, 19 five-star chair legs, 20 pulleys, 21 deflector rods and 22 base supports.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the seat for relieving lumbago of lumbar disc herniation of the present embodiment comprises: the backrest (comprising a back cushion 1, a third pin column 2, a backrest bracket 4 and a sleeve 3) for supporting the sternum and the anterior chest wall, and a base 8 and a cushion 7 which can be tilted upwards to form an acute included angle with the horizontal plane and have an adjustable angle at one end far away from the backrest bracket 4 for supporting the buttocks and the thighs.

The seat, still include: a base tray 15;

a base 8 is fixedly arranged on the bottom surface of the seat cushion 7;

the base 8 is supported by a base bracket 22 and a base support rod 10;

the base support 22 is fixedly mounted on the base tray 15, parallel to the horizontal plane:

the base 8 and the base support 22 are movably connected by a pin through the first pin 14 at one end close to the backrest support 4, so that an acute included angle is formed between the base 8 and the base support 22.

The base support bar 10 fixes the base 8 and the base support 22 at a predetermined angle.

Two base support rods 10 are respectively and symmetrically arranged on two sides of the base 8 and the base support 22;

one end of each base support rod 10 is hinged on the corresponding side of the base 8, and the other end is movably abutted against the corresponding side of the base support 22.

A pin boss 11 is fixedly arranged at the other end of each base support rod 10;

more than two grooves 12 are respectively arranged on the two sides of the base bracket 22;

on the base bracket 22, each groove 12 is shaped to match the pin projection 11 of the base support rod 10 on the corresponding side.

In this embodiment, the base support 22 is provided with 5 grooves 12 on each side, and each groove is shaped to match the pin protrusion 11 of the corresponding side base support bar 10.

The backrest, comprising: the back cushion comprises a back cushion 1, a third pin column 2, a sleeve 3, a backrest support 4 and an adjusting button 5.

The optimal angle of the cushion 7 and the end of the base 8 far away from the backrest, which is tilted upwards, is the minimum angle at which the lumbago disappears or is obviously relieved without discomfort such as chest distress, suffocation and the like. The height of the base corresponding to the preset angle between the base and the base support, which is far away from the end of the first pin column (14), is 4-6 cm, so that the lumbago symptom can be obviously relieved.

One end of each base support rod 10 is movably pinned to the corresponding side of the base 8 through a second pin 9.

The base 8 is parallel to the horizontal plane when each stud bump 11 is located in the groove 12 on the corresponding side furthest from the first stud 14.

In this embodiment, since the patient sits on the seat cushion 7 for a long time, the seat cushion moves toward the backrest side relative to the base, and in order to keep the seat cushion 7 at a fixed position, the restricting member 13 is provided at the end of the base close to the backrest so as to abut against the seat cushion 7.

A limiting piece 13 is fixedly arranged at one end of the base 8 close to the backrest bracket 4;

the restricting member 13 abuts against an end of the seat cushion 7 close to the back bracket 4 to prevent the seat cushion 7 from moving.

The upper end of the backrest support 4 is provided with a back cushion 1 which is contacted with the sternum and the front chest wall of the patient;

a plurality of fixing grooves 6 are formed in the backrest support 4 along the length direction;

the back cushion 1 is arranged on the backrest support 4 through a sleeve 3, can move up and down along the backrest support 4 through an adjusting button 5, and is fixed on a preset fixing groove 6.

The back cushion 1 is arranged on the sleeve 3 through a third pin 2, and the inclination angle of the back cushion 1 relative to the backrest support 4 can be adjusted through the third pin 2.

A soft protective layer is arranged on one surface of the back cushion 1, which is in contact with the back of the patient;

the shape of the back cushion 1 is a rounded rectangle, the length is 15-20 cm, and the width is 15-20 cm;

if the back cushion 1 is used by a woman, the lower end of the rectangle is cut off to form a sector, the sector takes two vertexes as circle centers, the radius of the sector is 5cm, and the angle of the sector is 90 degrees.

The backrest support 4 comprises two metal tubes which are parallel to each other;

the bottoms of the two metal pipes are connected through a metal clamp 17 and fixed in a base tray 15 through a fixing bolt 16;

a sliding hole groove which is far away from the direction of the air pressure rod 18 and has the length of less than 10cm is arranged in the base tray 15;

the bolt 16 for fixing the back support 4 moves along the sliding hole groove, so that the back support 4 moves to a direction far away from the gas cylinder 18 by a distance less than 10cm and is fixed by the fixing bolt 16.

In the present embodiment, the backrest frame 4 is composed of two struts with identical shapes; the two supporting rods are arranged side by side; the upper part of each support rod of the backrest support 4 is an inclined rod, and the lower part of each support rod is an L-shaped bent rod; the bent part of the lower part is arc-shaped; the upper portion is inclined in an outward direction away from the seat cushion 7. The cushion 1 is fully attached and effectively supports the anteverted sternum and the anteverted chest wall of the patient by adjusting the outward pulling distance of the backrest support 4, adjusting the height of the sleeve 3 on the backrest support 4 and adjusting the inclination angle of the third pin 2.

The seat, still include: five-star chair legs 19;

when the backrest support 4 moves to the position farthest from the air pressure bar 18, the droop line of the center of the back cushion 1 is positioned in the arc where the edge of the five-star chair leg 19 is positioned, and the nearest distance from the arc is more than or equal to 2 cm.

When each pin boss 11 is positioned in the groove 12 which is farthest away from the first pin 14 on the corresponding side, the down-plumb lines of the edges of the bases 8 are all positioned in the arc where the edge of the five-star chair leg 19 is positioned, and the nearest distance from the arc is more than or equal to 2 cm.

In this embodiment, a pulley 20 is mounted on each of the five-star chair legs 19. The pulley 20 allows the seat to move freely.

In the embodiment, the radius of the arc where the five-star chair leg 19 is located is 30 cm; the cushion 7 is 30-40 cm long and 30-40 cm wide.

An air pressure rod 18 is connected between the base tray 15 and the five-star chair leg 19;

the pneumatic rod 18 raises and lowers the height of the base tray 15 through the shift lever 21.

The intersection point of the axis of the gas cylinder 18 and the plane of the base support 22 is a distance of one third of the length of the base support 22 from the first pin 14.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Clinical examples

Example 1 in X, male, age 49, lumbago, skelalgia 5 years, lumbar vertebra nuclear magnetic resonance examination of lumbar vertebra 1-2, lumbar vertebra 2-3, lumbar vertebra 3-4, lumbar vertebra 4-5, prolapse of intervertebral disc. Diagnosing protrusion of lumbar vertebral disc. When the chair is used, when the base is lifted up to form an included angle of about 15 degrees with the horizontal plane (the far end of the base is tilted by about 5 cm), the lumbago disappears without chest distress and discomfort, and the chair can be used for a long time.

Example 2 Zhu X, Male, age 44, lumbago, leg pain, lumbar disc herniation for 2 years, lumbar 5/sacral 1 disc herniation, lumbar 3/4, lumbar 4/5 disc bulging by lumbar nuclear magnetic examination. Diagnosing protrusion of lumbar vertebral disc. Non-operative treatment such as bed rest and traction. Sitting is often accompanied by continuous lumbago. When the chair is used, the lumbago disappears and the chest is not stuffy when the base is lifted to form an included angle of about 20 degrees with the horizontal plane (the far end of the base is tilted about 6 cm), and the chair can be used for sitting for a long time.

Example 3 DuX, Male, 59 years old, lumbago for years, lumbar nuclear magnetic exam lumbar 4/5, lumbar 5/sacral 1 herniated disc. The waist pain of the seat is usually treated by physical therapy, massage and the like, when the seat is used, the waist pain disappears and the seat can be used for long time when the base is lifted to form an included angle of about 15 degrees with the horizontal plane (the far end of the base is tilted by about 5 centimeters).