Patent Description:
China has created cupping therapy using a principle of negative pressure since ancient times. NASA and the Fourth Military Medical University have also used negative pressure capsules and negative pressure pants for training and rehabilitation of astronauts and treatment of various vascular diseases. However, negative pressure therapy rehabilitation equipment has the following defects: <NUM>. The equipment is cumbersome, an excessive friction of a seal between a therapy cavity and a limb may cause an unbearable pain in the skin of the limb in a negative pressure therapy, and the therapy adherence cannot be achieved; or there may be catastrophic side effects such as bleeding caused by crushing the therapy cavity by a plantar ulcer surface. The equipment is not easily sealed and involves complex operations. Some sealing methods, such as airbag sealing, cause severe radial compression to blood vessels of a limb, thus obstructing the blood circulation of the limb and causing an unbearable pain; it runs counter to the purpose of the equipment and has great side effects. The equipment is costly and not portable and cannot be used at home. These are also the main reasons why such equipment has not entered medical institutions and families on a large scale to benefit the society. <CIT> discloses a pneumatic circulatory enhancer for diabetic leg therapy. The pneumatic circulatory enhancer includes a chamber around an affected foot. The affected foot can be inserted into and/or placed in the chamber. The chamber may be in any shape to surround the affected foot. The chamber may have a boot shape, a cube, or a tube that is made of, for example, rigid and, optionally, transparent materials. Other examples of a negative pressure therapy devices include <CIT>, <CIT>, <CIT>, <CIT>, <CIT>, <CIT>, <CIT>. <CIT> discloses a rigid vacuum chamber with sealing means which can be made in the angular shape for a permanently crooked arm or leg.

The invention provides a physiotherapy instrument for human body facet joint inflammation according to claim <NUM>.

An objective of the present invention is to overcome the deficiencies of the prior art and to provide a lightweight physiotherapy instrument for human body facet joint inflammation, which has a good therapeutic effect.

The objective of the present invention is achieved in the following manner: a physiotherapy instrument for human body facet joint inflammation includes a rigid therapy cavity and a negative pressure generation control system, where the therapy cavity is provided with at least one opening for a limb to enter and leave; the therapy cavity is connected to the negative pressure generation control system by means of an air passage; the therapy cavity is L-shaped, to allow a partial thigh above a knee of a limb and a partial or entire shank below the knee to be put in after bending, and allow a partial arm above an elbow of a limb and a partial or entire forearm below the elbow are allowed to be put in after bending; the L-shaped therapy cavity is composed of several parts fitted with each other to form a whole; and the opening of the therapy cavity and the limb are fixed by means of a sealed connecting component.

In the present invention, a conventional straight cylindrical therapy cavity is structurally changed into the L-shaped therapy cavity, so that upper and lower parts of a joint are put into the therapy cavity at the same time after a knee joint or an elbow joint of the limb bends, thus fundamentally changing the condition of mechanical instability between the straight cylindrical therapy cavity and the limb under a negative pressure. A frictional force between the limb and the therapy cavity under the negative pressure is converted into a pressure applied by the knee or the elbow joint on a cavity wall (turning), and the therapy cavity is designed to be L-shaped (the design allows the knee or the elbow to be in contact with the turning of the therapy cavity during bending to transmit a mutual pressure), so that the direction of an interaction force between the limb and the therapy cavity is changed, thereby completely avoiding a relative motion caused by the negative pressure between the straight cylindrical therapy cavity of the prior art and the limb. The design may fundamentally reduce the weight of the therapy cavity while maintaining the mechanical stability of the therapy cavity under the negative pressure. The relative motion between the therapy cavity and the limb no longer occurs in a negative pressure therapy, and mechanical crush on plantar ulcer of diabetic feet in the negative pressure therapy is also eliminated to prevent bleeding caused by ulcer crush. This is a revolutionary change as significant as developing a straight telescope into a periscope, developing a straighttube gun into a bendable shooting gun, changing a flight deck of an aircraft carrier from a deck with an elevation for ski-jump take-off to a flat plane for catapult-assisted take-off, and modifying the positions of needle holes of needles of a sewing machine from a tail to a head. Details are as follows:.

For example, a leg is treated by therapy cavity equipment with one open end. In the prior art, a straight cylindrical therapy cavity is adopted, that is, a limb (thigh and shank) is substantially straight in a therapy. When the limb (e.g., the leg, including a foot) enters the therapy cavity, since the foot is usually greater than the leg in diameter, the diameter of the therapy cavity must be greater than the length of the foot, resulting in a large volume of the therapy cavity. Even so, it is not easy to stretch into the therapy cavity. Especially for a diabetic foot patient, it is more difficult to stretch into the therapy cavity. After the foot of the patient enters the therapy cavity finally, if a sole of the foot is in physical contact with a bottom of the therapy cavity, under the negative pressure, there will be mechanical periodic crush (F=PS) between the sole of the foot and the bottom of the therapy cavity. The magnitude of the acting force is directly proportional to a cross sectional area S of the thigh at a leg seal and the negative pressure. According to an intermittent negative pressure (-<NUM> KPa to -<NUM> KPa) in a conventional therapy and the cross sectional area of the leg of <NUM><NUM>, the pressure F is calculated to be about <NUM> to <NUM>. The mechanical periodic crush will cause the diabetic foot patient to have ulcer bleeding, and the consequence will be catastrophic. If the sole of the foot is not in contact with the bottom of the therapy cavity (since the equipment is usually suitable for most people with different leg lengths, the sole of the foot is not in contact with the bottom of the therapy cavity generally), the therapy cavity is only in contact with the skin of the thigh at the thigh seal to generate a frictional force. The frictional force F is equivalent to an original crushing force between the sole of the foot and the bottom of the therapy cavity. According to the above calculation, F is about <NUM> to <NUM>. The long-term frictional force on the skin of the thigh will cause an unbearable pain in the skin of the thigh, and the therapy adherence cannot be achieved.

The above is not a fundamental problem. The therapy cavity and the limb must be relatively stable during a therapy. The weight of a human body is generally <NUM> or more, and a frictional force between the human body sitting or lying and a contact surface will be greater than <NUM>. However, since a frictional coefficient between the therapy cavity and the ground is small, a frictional force greater than <NUM> should be generated to maintain relative stability with the limb in a negative pressure therapy. Therefore, it is necessary to increase the frictional force with the ground by increasing the weight of the therapy cavity, thus fixing the therapy cavity. To generate a maximum static frictional force greater than <NUM> with the ground to maintain stability, the weight of the therapy cavity usually needs to be <NUM> or more, which is the lowest weight of all current straight cylindrical therapy cavity equipment. The weight of some therapy cavities such as a Vacusport equipment therapy cavity is even more than <NUM>, so the equipment is completely non-portable or cannot be used at home. For the above reasons, even if the weight is not considered, the resultant side effect of an unbearable limb pain caused by an excessive frictional force with the skin contact surface of the limb at the seal is fatal, and the equipment is difficult to promote. However, if the therapy cavity only acts on a partial shank below the knee, the affected blood supply range is limited and the therapeutic effect is not good due to a small acting area, and the side effect of bleeding caused by crushing the soles of the diabetic feet in the negative pressure therapy cannot be eliminated. If there is an ulcer in the shank, it will not be used, and it will not be promoted in a large area or used at home.

For the therapy cavity with two open ends, the mechanical principle is the same as that of the therapy cavity with one open end. When the straight cylindrical therapy cavity is adopted, since for a limb (e.g., a thigh and a shank), the cross sectional area of the thigh is greater than that of the shank by about <NUM><NUM>, the therapy cavity will move toward the base of the thigh from the shank in the negative pressure therapy. The pressure difference is about <NUM> to <NUM>. Just like the therapy cavity with one open end, the problem is solved only by increasing the frictional force with the contact surface or the ground by increasing the weight of the therapy cavity, which may also cause the equipment to be cumbersome and cause great side effects. In the early <NUM>,<CIT>titled Vacuum Negative Pressure Massage Therapy Instrument, and No.<CIT>titled Vacuum Therapy Instrument, both of which were applied by Professor Xiaolin Tong of the China-Japan Friendship Hospital. The second invention was applied because the inventor found that the therapy cavity of the first invention is mechanically instable. But the improved second invention is also wrong and does not solve the fundamental problem, and therefore the two inventions are not practical and cannot benefit the society.

Of course, in addition to the mechanical problems and various side effects, another reason why the above equipment cannot be used and promoted in a large area is that the existing sealing technology involves complex operations and the sealing is unreliable. As mentioned above, many of the existing technologies use an airbag seal, which directly makes it difficult for a limb to enter and exit from an airbag. The airbag inflation and deflation operations are complex. Moreover, the airbag also has severe radial compression on the limb. Consequently, blood vessels are compressed, the limb pain is unbearable, and the blood circulation is blocked, which is contrary to the purpose of the equipment. The equipment cannot be promoted. This is one of the reasons why the airbag seal patent No. <CIT> of the Fourth Military Medical University cannot be promoted. The airbag seal is subsequently improved to a sealing sleeve seal (the sealing sleeve seal belongs to the <CIT>). However, the above problems of mechanical instability between the therapy cavity and the limb in the negative pressure therapy and the various side effects and equipment cumbersomeness caused thereby are not resolved yet. Therefore, the equipment cannot be promoted though it has some therapeutic effects.

The fatal defects of all of the above equipment require revolutionary solutions, so that all mankind can be benefitted by such equipment.

The inventor has completely and thoroughly overcome the deficiencies of the prior art by the following methods:.

The inventor conducted a preliminary clinical trial of the product, which completely reached and exceeded an expected therapeutic effect, had an immediate effect on many diseases caused by poor circulation of lymphatic fluid, tissue fluid and blood, and also had an obvious rehabilitation effect on physical fitness. Although relevant healing and rehabilitation mechanisms are not completely clear, the results are obvious. In the future, the portable therapy instrument or physical rehabilitation equipment is expected to enter the vast field of sports and aerospace to achieve a good effect on physical rehabilitation of astronauts in space capsules and rapid physical rehabilitation of athletes who consume a lot of physical energy, such as football players.

For convenience of production, the L-shaped therapy cavity includes a first housing and a second housing that form an L shape; the opening of the therapy cavity for the limb to enter and leave is circular arc-shaped, and the circular arc-shaped opening is formed by fitting a semi-arc-shaped first opening on the first housing with a semi-arc-shaped second opening on the second housing; and the therapy cavity is provided with one open end or two open ends.

To ensure a sealing effect, the sealed connecting component includes an airtight winding tape for winding sealing made of a polymer material, so that air inside and air outside the therapy cavity are isolated in a negative pressure therapy.

The sealed connecting component of the present invention includes a first sealing bag with one open end, the L-shaped therapy cavity is completely sleeved in the first sealing bag, and the open end of the first sealing bag is sealed and fixed to the limb. If the therapy cavity is wrapped in a sealing bag as a whole, the sealing is extremely simple and convenient, but the appearance is slightly poor. However, the priority of the therapy equipment should be the therapeutic effect rather than the beautiful appearance. Integrated sealing based on a sealing bag is an innovative method in the field. The combination of the sealing bag and the therapy cavity is more convenient and practical. The sealing bag is made of an airtight polymer material. The sealing bag is required to be airtight instead of being elastic, and required to completely cover the therapy cavity with the open end fixedly sealed with the limb. For convenience of the connection to the negative pressure generation system, it is a common practice to provide a hole in the sealing bag or install an air nozzle to connect the therapy cavity to a negative pressure generation pipeline. The sealing bag is in conformity with configuration forms such as a common plastic packaging bag, and is composed of upper and lower layers with one open end or two open ends for covering the therapy cavity. If the therapy cavity is integrally wrapped and sealed by the sealing bag, a sealing strip between the first housing and the second housing may be removed, and the sealing is simpler and more convenient. Specifically, the first or second sealing bag may be provided with an air hole or an air nozzle. After the first or second sealing bag covers the therapy cavity, the sealing bag is connected to the air passage of the negative pressure generation system by means of the air hole or the air nozzle, and forms a seal herein. Meanwhile, the open end of the first or second sealing bag is fixedly sealed with the limb by a strap or the like, so as to generate a negative pressure during operation. For the purpose of simple and reliable operation, the therapy cavity may be provided with an air nozzle or an air hole which is butt-jointed with the air hole or the air nozzle of the first or second sealing bag and then is butt-jointed and sealed with a negative pressure generation air passage. The air passage of the negative pressure generation system may also be directly butt-jointed with the corresponding air hole or air nozzle of the therapy cavity and the negative pressure generation air passage. The other end of the air passage stretches out of the sealing bag from the inside via the open end of the first or second sealing bag, and then the open end of the sealing bag is fixed to the limb by using a strap to form a seal, so as to form a negative pressure during operation. The first or second sealing bag is not provided with an air hole or an air nozzle.

As above, the sealed connecting component includes a second sealing bag with two open ends, the L-shaped therapy cavity is completely sleeved in the second sealing bag, and the two open ends of the second sealing bag are sealed and fixed to the limb. The connection sealing method of the remaining air passage therapy cavities is the same as that described in the first sealing bag.

For convenience of the connection between the therapy cavity and the negative pressure generation control system, the first sealing bag or the second sealing bag may be provided with an air hole or an air nozzle according to different requirements. The air hole or the air nozzle is connected to the air passage of the negative pressure generation system with a seal formed at a junction, and the other end of the air passage is connected to the negative pressure generation control system. It is also possible to provide an air nozzle on the therapy cavity at the same time to facilitate the butt-jointed sealing of the air passage with the sealing bag and the therapy cavity.

The first sealing bag or the second sealing bag of the present invention is made of an airtight polymer material.

The sealed connecting component of the present invention is sealed by a sealing tape made of an elastic polymer material, and two ends of the sealing tape are connected and closed by a connecting zipper to form a sealing sleeve seal, so that air inside and air outside the therapy cavity are isolated in a negative pressure therapy. The sealing sleeve seal formed by connecting and closing the two ends by the connecting zipper may also completely replace the second sealing bag with two open ends. The sealing sleeve integrally wraps the therapy cavity during therapy. The sealing sleeve formed by connecting and closing the two ends by the connecting zipper is provided with an air hole or an air passage to be butt-jointed with the negative pressure generation air passage in a sealed manner, which is in conformity with the operating principle of the second sealing bag with two open ends.

The rigid therapy cavity of the present invention is formed by butt-jointing at least two parts fitted with each other, the therapy cavity is provided with a therapy cavity opening, and the therapy cavity opening is openable. The sealed component includes a sealing sleeve. The sealing sleeve is seamless and internally hollow, and has two open ends. The limb is allowed to enter or leave the internal hollow. One end of the sealing sleeve is connected to the limb by means of a strap, and the other end is connected to the therapy cavity opening. A method for splitting the therapy cavity from the opening thereof is adopted. During operation, the following method is adopted: the limb is wrapped by the therapy cavity composed of several parts and then the parts are butt-jointed. Then the therapy cavity is butt-jointed with the sealing sleeve sleeved on the limb in advance to form a seal. The sealing sleeve is used at each open end of the therapy cavity, and then the therapy cavity is connected to the positive-negative pressure generation control system to start working, which greatly reduces the inconvenience of an original operation and facilitates use. In order to ensure a better sealing effect, after the sealing sleeve is connected to the therapy cavity, in order to ensure, the sealing sleeve is fixed to the limb and the opening of the therapy cavity by using a fixing rope or a strap, to ensure that the sealing sleeve does not fall off during operation.

The therapy cavity of the present invention includes an upper therapy cavity and a lower therapy cavity, and a gap is formed between a lower end of the upper therapy cavity and an upper end of the lower therapy cavity. The upper therapy cavity is near a thigh or near a shoulder of an upper limb, and the lower therapy cavity is near a foot or near a hand of an upper limb. The two-segment composite therapy cavity is suitable for patients with different leg lengths (or different lower arm lengths). The two therapy cavity segments are combined into an entire therapy cavity with one open end, including a foot (or hand). As the therapy cavity bends, physical and mechanical results of limiting or not between the segments are different. For some people, such as diabetic foot patients with plantar ulcer, limiting is necessary. For some people, limiting is unnecessary. In the case without the limiting, under the negative pressure, there is room for height reduction between the therapy cavities. If the height is reduced, the bottom of the therapy cavity exerts pressure on the sole of the foot (or hand), thereby achieving the effect of physically massaging the sole of the foot (or hand), etc..

The therapy cavity of the present invention includes an upper therapy cavity and a lower therapy cavity. A lower end of the upper therapy cavity and an upper end of the lower therapy cavity are butt-jointed and partially overlapped, and overlapped portions are provided with corresponding pin holes and connected by means of a pin. Adjustment is performed based on different pin positions, so as to adapt to patients with different leg lengths (or lower arm lengths). Moreover, for some people, for example, people with plantar ulcer, limiting is necessary. If the therapy cavity at the thigh bends after limiting, the external pressure will not be directly exerted on the shank and the sole of the foot (or hand), but on the knee or the elbow. That is, the therapy cavity itself does not exert a physical pressure on the sole of the foot due to contact crushing. The sole of the foot may be suspended, that is, the sole of the foot may not be pressed. This is crucial for people with plantar ulcer; otherwise it may cause catastrophic hard-to-heal bleeding injuries to diabetic foot patients with plantar ulcer. This is one of the reasons why the straight cylindrical therapy cavity is not suitable for treating the diabetic foot patients with plantar ulcer. Therefore, in most cases, the bending therapy cavity drawn in the embodiments is more effective, and has small side effects.

The therapy cavity of the present invention includes an upper therapy cavity, an intermediate therapy cavity and a lower therapy cavity. An upper end of the intermediate therapy cavity and the upper therapy cavity are butt-jointed and partially overlapped, a lower end of the intermediate therapy cavity and the lower therapy cavity are butt-jointed and partially overlapped, and overlapped portions are provided with corresponding pin holes and connected by means of pins.

The therapy cavity of a following example embodiment, not forming part of the invention, but presented for illustration purposes, includes an upper therapy cavity and a lower therapy cavity. The upper therapy cavity and the lower therapy cavity are connected by means of two connecting frames. The two connecting frames are located on left and right sides of the therapy cavity and each include a first connecting rod and a second connecting rod. The upper therapy cavity, the first connecting rods, the second connecting rods, and the lower therapy cavity are hinged sequentially. A joint of the first connecting rod and the second connecting rod may be rotated to change an angle. The upper therapy cavity and the lower therapy cavity may change an angle by means of the connecting frames to facilitate free bending of the joint of the patient. Bending is necessary because some people have different degrees of joint bending, for example, some people are comfortable at <NUM> degrees while some people are comfortable at <NUM> degrees, the patient may move the joint from time to time during therapy without keeping a long-term fixed angle which is unbearable. Since the sealing bag is used for integrated sealing, the motion of the joint affects neither a sealing effect nor a therapeutic effect.

The rigid therapy cavity of an example embodiment, not forming part of the invention, but presented for illustration purposes, is an integrated therapy cavity formed by one or more portions. The integrated therapy cavity is provided with one open end or two open ends, gaps or holes are provided between various components or on materials of various portions, and the integrated therapy cavity is formed by butt-jointing the various components in any manner. The integrated therapy cavity is fixed and sealed to the limb by the first sealing bag or the second sealing bag.

A first physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>, and includes a rigid therapy cavity <NUM> and a negative pressure generation control system <NUM>. The therapy cavity <NUM> is made of a transparent material and is L-shaped, to allow a partial thigh above a knee of a limb and a partial or entire shank below the knee to be put in after bending, and allow a partial arm above an elbow of a limb and a partial or entire forearm below the elbow to be put in after bending. The L-shaped therapy cavity <NUM> is composed of two parts fitted with each other to form a whole. The two parts are sealed by a sealing strip at a seam. The therapy cavity <NUM> is connected to the negative pressure generation control system <NUM> by means of an air passage. The therapy cavity <NUM> is provided with an opening <NUM> for the limb to enter and leave. An easy-to-remove filling block <NUM> for filling a gap is provided between the opening <NUM> of the therapy cavity <NUM> and the limb. The filling block <NUM> is made of an elastic polymer material that may be crushed and deformed by the limb. The filling block <NUM> isolates air inside and outside the therapy cavity to form a seal independently in a negative pressure therapy. The opening <NUM> of the therapy cavity <NUM> and the limb are wound and sealed by an airtight winding tape <NUM> made of a polymer material, such that air inside and air outside the therapy cavity are isolated in the negative pressure therapy, and after winding and sealing by the winding tape <NUM>, a strap is additionally provided for fixing the winding tape.

The L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged left and right. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are fixed by a fastener <NUM>. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> may also be fixed by a buckle cord or the like instead of the fastener. A sealing strip is provided at a junction between the first housing <NUM>-<NUM> and the second housing <NUM>-<NUM>. The opening <NUM> for the limb to enter and leave is circular arc-shaped, and the circular arc-shaped opening <NUM> is formed by fitting a semi-arc-shaped first opening <NUM>-<NUM> on the first housing <NUM>-<NUM> with a semi-arc-shaped second opening <NUM>-<NUM> on the second housing <NUM>-<NUM>.

A second physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An opening <NUM> of a therapy cavity <NUM> and a limb are sealed by a sealing tape <NUM> made of an elastic polymer material. Two ends of the sealing tape <NUM> are connected and closed by a sealing zipper <NUM> to form a sealing sleeve seal, so that air inside and air outside the therapy cavity are isolated in a negative pressure therapy. The rest of the structure is the same as that in Embodiment <NUM>.

A third physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged front and back. The rest of the structure is the same as that in Embodiment <NUM> or <NUM>.

A fourth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> is provided with two openings <NUM> for a limb to enter and leave, which are located at two ends of the L-shaped therapy cavity <NUM>, respectively. The rest of the structure is the same as that in Embodiment <NUM> or <NUM> or <NUM>.

A fifth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> is provided with two openings <NUM> for a limb to enter and leave, which are located at two ends of the L-shaped therapy cavity <NUM>, respectively. The L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged front and back. The rest of the structure is the same as that in Embodiment <NUM> or <NUM> or <NUM>.

A sixth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>, and further includes a first sealing bag <NUM> with one open end. An L-shaped therapy cavity <NUM> is completely sleeved in the first sealing bag <NUM>. The open end of the first sealing bag <NUM> is sealed and fixed to a limb <NUM> by means of a first fixing rope <NUM>.

A seventh physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>, and further includes a second sealing bag <NUM> with two open ends. An L-shaped therapy cavity <NUM> is completely sleeved in the second sealing bag <NUM>. The two open ends of the second sealing bag <NUM> are sealed and fixed to a limb <NUM> by means of a second fixing rope <NUM>.

An eighth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>, and includes a rigid therapy cavity <NUM> and a negative pressure generation control system <NUM>. The therapy cavity <NUM> is made of a transparent material and is L-shaped, to allow a partial thigh above a knee of a limb and a partial or entire shank (i.e., including a foot) below the knee to be put in after the knee bends, and allow a partial arm above an elbow of a limb and a partial or entire forearm (i.e., including a hand) below the elbow to be put in after the elbow bends. In this embodiment, the therapy cavity has one open end, and the foot or hand of the limb is entirely contained in the therapy cavity. The L-shaped therapy cavity <NUM> is composed of left and right parts fitted into a whole. The therapy cavity <NUM> is provided with an opening <NUM> for the limb to enter and leave. An easy-to-remove filling block <NUM> for filling a gap is provided between the opening <NUM> of the therapy cavity <NUM> and the limb. The filling block <NUM> is composed of a first filling block <NUM>-<NUM> and a second filling block <NUM>-<NUM>.

The L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged left and right. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are fixed by a fastener <NUM>. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> may also be fixed by a buckle cord or the like instead of the fastener. In this embodiment, it is not necessary to provide a sealing strip at a junction between the first housing <NUM>-<NUM> and the second housing <NUM>-<NUM>. The opening <NUM> for the limb to enter and leave is circular arc-shaped, and the circular arc-shaped opening <NUM> is formed by fitting a semi-arc-shaped first opening <NUM>-<NUM> on the first housing <NUM>-<NUM> with a semi-arc-shaped second opening <NUM>-<NUM> on the second housing <NUM>-<NUM>.

After the limb is put in the therapy cavity <NUM>, a cavity body is sleeved by a first sealing bag <NUM> with one open end, the first sealing bag <NUM> being made of a flexible polymer material. The therapy cavity <NUM> is completely sleeved in the first sealing bag <NUM>. A first fixing rope <NUM> is provided between an opening <NUM>-<NUM> of the first sealing bag <NUM> and the limb <NUM> to fix and seal the opening <NUM>-<NUM> of the first sealing bag to the limb <NUM>. The first sealing bag <NUM> is provided with an air hole or air nozzle <NUM>. The therapy cavity is provided with an air nozzle <NUM> butt-jointed with the air hole or air nozzle <NUM> on the first sealing bag. After buttjoint, the therapy cavity is connected to an air passage <NUM>, and a seal is formed at the butt-jointed portion. The other end of the air passage <NUM> is connected to the negative pressure generation control system <NUM> to form a negative pressure during operation.

A ninth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged front and back. In this embodiment, both the therapy cavity and the first sealing bag have one open end, and the rest of the structure is the same as that in Embodiment <NUM>.

A tenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>, and includes a rigid therapy cavity <NUM> and a negative pressure generation control system <NUM>. The therapy cavity <NUM> is made of a transparent material and is L-shaped, to allow a partial thigh above a knee of a limb and a partial or entire shank (i.e., including a foot) below the knee to be put in after the knee bends, and allow a partial arm above an elbow of a limb and a partial or entire forearm (i.e., including a hand) below the elbow to be put in after the elbow bends. In this embodiment, the therapy cavity has one open end, and the foot or hand of the limb is entirely contained in the therapy cavity. The L-shaped therapy cavity <NUM> is composed of left and right parts fitted into a whole. The therapy cavity <NUM> is provided with an opening <NUM> for the limb to enter and leave. An easy-to-remove filling block <NUM> for filling a gap is provided between the opening <NUM> of the therapy cavity <NUM> and the limb. The filling block <NUM> is composed of a first filling block <NUM>-<NUM> and a second filling block <NUM>-<NUM>.

After the limb is put in the therapy cavity <NUM>, a cavity body is sleeved by a first sealing bag <NUM> with one open end, the first sealing bag <NUM> being made of a flexible polymer material. The therapy cavity <NUM> is completely sleeved in the first sealing bag <NUM>. A first fixing rope <NUM> is provided between an opening <NUM>-<NUM> of the first sealing bag <NUM> and the limb <NUM> to fix and seal the opening <NUM>-<NUM> of the first sealing bag to the limb <NUM>. The therapy cavity is provided with an air nozzle <NUM> connected to the other end of an air passage <NUM>. The other end of the air passage <NUM> stretches out of the opening <NUM>-<NUM> of the first sealing bag <NUM> and then is connected to the negative pressure generation control system <NUM>. The first sealing bag <NUM> is not provided with an air hole or air nozzle. The therapy cavity <NUM> is completely sleeved in the first sealing bag <NUM>. A first fixing rope <NUM> is provided between an opening <NUM>-<NUM> of the first sealing bag <NUM> and the limb <NUM> to fix and seal the opening <NUM>-<NUM> of the first sealing bag to the limb <NUM> to form a negative pressure during operation.

An eleventh physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged front and back. The therapy cavity has one open end, and the rest of the structure is the same as that in Embodiment <NUM>.

A twelfth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged left and right. The therapy cavity <NUM> is provided with two open ends for a partial limb to put in, and the rest of the structure is the same as that in Embodiment <NUM>.

A thirteenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged front and back. The therapy cavity <NUM> is provided with two open ends for a partial limb to put in, and the rest of the structure is the same as that in Embodiment <NUM>.

A fourteenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged left and right. In this embodiment, the therapy cavity has two open ends, a sealing bag is a second sealing bag <NUM> with two open ends, openings <NUM>-<NUM> at two ends of the sealing bag are fixed and sealed to two ends of a limb <NUM> by a second fixing rope <NUM> respectively, and the rest of the structure is the same as that in Embodiment <NUM>.

A fifteenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. An L-shaped therapy cavity <NUM> includes a first housing <NUM>-<NUM> and a second housing <NUM>-<NUM> forming an L shape. The first housing <NUM>-<NUM> and the second housing <NUM>-<NUM> are arranged front and back. In this embodiment, the therapy cavity has two open ends, a sealing bag is a second sealing bag <NUM> with two open ends, openings <NUM>-<NUM> at two ends of the sealing bag are fixed and sealed to a limb <NUM> by a second fixing rope <NUM>, and the rest of the structure is the same as that in Embodiment <NUM>.

A sixteenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>, and includes a rigid therapy cavity <NUM>, an air passage <NUM> and a positive-negative pressure generation control system <NUM>. The positive-negative pressure generation control system <NUM> is connected to the therapy cavity <NUM> by means of the air passage <NUM>. The therapy cavity <NUM> is provided with an air nozzle <NUM> butt-jointed with the air passage <NUM> of the positive-negative pressure generation control system <NUM>. The rigid therapy cavity <NUM> is formed by butt-jointing two parts fitted with each other, namely a first therapy cavity <NUM>-<NUM> and a second therapy cavity <NUM>-<NUM>. A seam is formed between the first therapy cavity <NUM>-<NUM> and the second therapy cavity <NUM>-<NUM>. A gap at the butt joint is sealed by a sealing strip. The first therapy cavity <NUM>-<NUM> and the second therapy cavity <NUM>-<NUM> are fixed by a fastener <NUM>. One end of the therapy cavity <NUM> is provided with a therapy cavity opening <NUM>, and the therapy cavity opening is openable. The therapy cavity <NUM> and a limb are sealed by a filling block <NUM> and a sealing sleeve <NUM>. The filling block <NUM> is configured to reduce the gap between the limb and the therapy cavity <NUM>. The sealing sleeve <NUM> is made of an airtight flexible polymer material. The sealing sleeve <NUM> is seamless and internally hollow. The sealing sleeve <NUM> has two open ends. The limb is allowed to stretch in or out of the internal hollow. One end of the sealing sleeve <NUM> is connected to the limb by means of a winding tape <NUM>, and the other end is connected to the therapy cavity opening <NUM>.

During operation, the seamless sealing sleeve (which is hollow-shaped like an armband or a kneecap) made of a polymer material is integrally sleeved over a limb, and then the therapy cavity is wrapped outside the limb (upper limb or lower limb) needing to be treated. Meanwhile, according to the size of a gap between the limb and the therapy cavity opening, the filling block that is easily replaceable and has a suitable size is used for filling to reduce the gap. The filling block is usually formed by two semicircular rings fitted around the limb to make the sealing more effective. A sealing strip is provided at a seam of various components of the therapy cavity. After installation is completed, various components of the therapy cavity are fixed by a buckle or a strap between the various components of the therapy cavity. Finally, one end of the sealing sleeve is sleeved into the therapy cavity opening while the other end is located on the limb. Thus, the outside atmosphere is isolated from the internal air of the therapy cavity to form a seal. In order to prevent the sealing sleeve from falling off under positive and negative pressures, the sealing sleeve may be fixed to the limb and the therapy cavity by the strap at two ends of the sealing sleeve. In order to ensure a better sealing effect, the sealing sleeve is made of an airtight polymer material having certain elasticity. After the sealing sleeve is connected to the therapy cavity, in order to ensure that the sealing sleeve is firm and does not fall off during operation, the sealing sleeve is fixed to the limb and the opening of the therapy cavity by a fixing rope or a strap.

A seventeenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A first therapy cavity <NUM>-<NUM> and a second therapy cavity <NUM>-<NUM> are fixed by means of a fixing tape <NUM>. The rest of the structure is the same as that in Embodiment <NUM>.

An eighteenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> is straight cylindrical. The therapy cavity has two openings <NUM> located at two ends of the therapy cavity <NUM> respectively. There are two sealing sleeves <NUM>, connected to two ends of the therapy cavity <NUM> respectively and fixed to a limb by means of a winding tape <NUM>. The rest of the structure is the same as that in Embodiment <NUM>.

A nineteenth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> is L-shaped. A first therapy cavity <NUM>-<NUM>, a second therapy cavity <NUM>-<NUM> and a seam <NUM> are all L-shaped. The therapy cavity has one opening <NUM> located at an upper end of the L-shaped therapy cavity <NUM>. The rest of the structure is the same as that in Embodiment <NUM>.

A twentieth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> is L-shaped. The therapy cavity has two openings <NUM> located at upper and lower ends of the L-shaped therapy cavity <NUM> respectively. There are two sealing sleeves <NUM>, connected to two ends of the therapy cavity <NUM> respectively and fixed to a limb by means of a winding tape <NUM>. The rest of the structure is the same as that in Embodiment <NUM>.

A twenty-first physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> includes an upper therapy cavity <NUM>-<NUM> and a lower therapy cavity <NUM>-<NUM>. A gap is formed between a lower end of the upper therapy cavity <NUM>-<NUM> and an upper end of the lower therapy cavity <NUM>-<NUM>. The upper therapy cavity <NUM>-<NUM> is composed of two parts fitted with each other, and the lower therapy cavity <NUM>-<NUM> is formed by a whole alone. The upper therapy cavity is near the thigh or near a shoulder of an upper limb, and the lower therapy cavity is near the foot or near a hand of the upper limb. The therapy cavity <NUM> is completely sleeved in a first sealing bag <NUM>. The first sealing bag <NUM> is sealed and fixed to a limb by means of a winding tape <NUM>. The therapy cavity <NUM> is connected to a negative pressure generation control system <NUM> by means of an air passage <NUM>.

A twenty-second physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> includes an upper therapy cavity <NUM>-<NUM> and a lower therapy cavity <NUM>-<NUM>. The upper therapy cavity <NUM>-<NUM> is composed of two parts fitted with each other, and the lower therapy cavity <NUM>-<NUM> is formed by a whole alone. A lower end of the upper therapy cavity <NUM>-<NUM> and an upper end of the lower therapy cavity <NUM>-<NUM> are butt-jointed and partially overlapped, and overlapped portions are provided with corresponding pin holes <NUM> and connected by means of a pin <NUM>. The rest is the same as that in Embodiment <NUM>.

A twenty-third physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A lower therapy cavity <NUM>-<NUM> is composed of two parts fitted with each other. The rest is the same as that in Embodiment <NUM>.

A twenty-fourth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A second sealing bag <NUM> has two open ends. One of the two open ends of the second sealing bag <NUM> is fixed and sealed with a limb by means of a winding tape <NUM>, and the other end is fixed to a lower therapy cavity <NUM>-<NUM> by means of the winding tape <NUM>. The rest is the same as that in Embodiment <NUM>.

A twenty-fifth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> includes an upper therapy cavity <NUM>-<NUM>, an intermediate therapy cavity <NUM>-<NUM> and a lower therapy cavity <NUM>-<NUM>. An upper end of the intermediate therapy cavity <NUM>-<NUM> and the upper therapy cavity <NUM>-<NUM> are butt-jointed and partially overlapped, a lower end of the intermediate therapy cavity <NUM>-<NUM> and the lower therapy cavity <NUM>-<NUM> are butt-jointed and partially overlapped, and overlapped portions are provided with corresponding pin holes <NUM> and connected by means of pins <NUM>. The rest is the same as that in Embodiment <NUM>.

A twenty-sixth physiotherapy instrument for human body facet joint inflammation is as shown in <FIG>. A therapy cavity <NUM> includes an upper therapy cavity <NUM>-<NUM> and a lower therapy cavity <NUM>-<NUM>. Each of the upper therapy cavity <NUM>-<NUM> and the lower therapy cavity <NUM>-<NUM> is a split structure, formed by connecting two half parts fitted with each other. The upper therapy cavity <NUM>-<NUM> and the lower therapy cavity <NUM>-<NUM> are connected by means of two connecting frames <NUM>-<NUM>. The two connecting frames <NUM>-<NUM> are located on left and right sides of the therapy cavity <NUM>. The connecting frames <NUM>-<NUM> each include a first connecting rod <NUM>-<NUM>-<NUM> and a second connecting rod <NUM>-<NUM>-<NUM>. The upper therapy cavity <NUM>-<NUM>, the first connecting rods <NUM>-<NUM>-<NUM>, the second connecting rods <NUM>-<NUM>-<NUM>, and the lower therapy cavity <NUM>-<NUM> are hinged sequentially. The therapy cavity <NUM> is completely sleeved in a first sealing bag <NUM>. The first sealing bag <NUM> is sealed and fixed to a limb by means of a winding tape <NUM>. The therapy cavity <NUM> is connected to a negative pressure generation control system <NUM> by means of an air passage <NUM>.

Claim 1:
A physiotherapy instrument for human body facet joint inflammation, comprising a rigid housing forming an L-shaped therapy cavity (<NUM>), a negative pressure generation control system (<NUM>), and a sealed connecting component,
wherein the housing is provided with at least one opening (<NUM>) for a limb (<NUM>) to enter and leave, and the therapy cavity is connected to the negative pressure generation control system by means of an air passage (<NUM>),
wherein the housing comprises a plurality of rigid parts structurally fitted, in use, to engage with each other to form a cavity wall of the therapy cavity after a bent limb of a user is received, and the housing is airtightly fixable to the limb at the at least one opening by means of the sealed connecting component,
whereby the housing is configured for receiving a user's knee joint or elbow joint that is bent before being placed in the housing.