WO2019007311A1 - 一种波纹管 - Google Patents

一种波纹管 Download PDF

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Publication number
WO2019007311A1
WO2019007311A1 PCT/CN2018/094196 CN2018094196W WO2019007311A1 WO 2019007311 A1 WO2019007311 A1 WO 2019007311A1 CN 2018094196 W CN2018094196 W CN 2018094196W WO 2019007311 A1 WO2019007311 A1 WO 2019007311A1
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WO
WIPO (PCT)
Prior art keywords
bellows
angle
corrugated tube
peak
air pressure
Prior art date
Application number
PCT/CN2018/094196
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English (en)
French (fr)
Inventor
杨克强
冒真炜
山本圭治郎
Original Assignee
北京恒通信佳科技发展有限公司
中山长曜医疗器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京恒通信佳科技发展有限公司, 中山长曜医疗器材有限公司 filed Critical 北京恒通信佳科技发展有限公司
Priority to US16/626,327 priority Critical patent/US10772784B2/en
Priority to ES18828100T priority patent/ES2921748T3/es
Priority to JP2019568398A priority patent/JP7011673B2/ja
Priority to EP18828100.0A priority patent/EP3628300B1/en
Publication of WO2019007311A1 publication Critical patent/WO2019007311A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
    • A61H1/0285—Hand
    • A61H1/0288—Fingers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
    • A61H1/024—Knee
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
    • A61H1/0266—Foot
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
    • A61H1/0277—Elbow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
    • A61H1/0266—Foot
    • A61H2001/027—Toes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0192—Specific means for adjusting dimensions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/12—Driving means
    • A61H2201/1238—Driving means with hydraulic or pneumatic drive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1635—Hand or arm, e.g. handle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1635—Hand or arm, e.g. handle
    • A61H2201/1638—Holding means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/164—Feet or leg, e.g. pedal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/164—Feet or leg, e.g. pedal
    • A61H2201/1642—Holding means therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/165—Wearable interfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/06—Arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/06—Arms
    • A61H2205/065—Hands
    • A61H2205/067—Fingers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/10—Leg
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/10—Leg
    • A61H2205/102—Knee

Definitions

  • the invention relates to the technical field of joint motion assistance, and in particular to a bellows.
  • the technical solution adopted by the present invention is to provide a bellows which is an inner hollow tube which is connected by a plurality of peaks and a plurality of troughs, and an end surface of the end of the bellows is disposed in the middle.
  • a boss having a thickness greater than a thickness of the bellows, a last section of the first end and the end of the bellows being a peak, a first peak of the head end and a last peak of the end
  • the width is greater than the thickness of the bellows, and the end of the bellows and the head end are invaded when the air pressure in the bellows is prevented from decreasing.
  • the end surface of the end of the bellows is provided with a chamfer to prevent the end of the bellows and the head end from being collapsed when the air pressure in the bellows is lowered.
  • the end surface of the first end of the bellows is provided with a circular arc surface, and when the air pressure in the bellows is lowered, the end and the first end of the bellows are invaded.
  • the apex angle of the bellows peak is equal to the bottom angle of the trough.
  • the compression performance of the bellows is greater than the tensile property.
  • the compression performance of the bellows is less than the tensile property.
  • the beneficial effects of the present invention are that the bellows cooperates with other joint rehabilitation exercise aids, and controls the air pressure in the bellows to force the bellows to perform compression or stretching motion, thereby driving the joints of the patient to move. Help patients with rehabilitation training.
  • Figure 1 is a structural view of a bellows
  • Figure 2 is a cross-sectional view of a bellows
  • Figure 3 is a structural view of the bellows worn on the finger joint rehabilitation exercise aid.
  • FIG. 1 is a structural view of a bellows which is matched with a mechanism for assisting rehabilitation exercise such as a finger, a toe, a leg or an arm, and the inside of the bellows is hollow, and the bellows is forced to be controlled by controlling the air pressure in the bellows.
  • the stretching and compression movements cause the joints requiring rehabilitation to be forced to move under the stretching and compression movement of the bellows; the bellows is made of high pressure polyethylene (HDPE) or ethylene (EVA).
  • HDPE high pressure polyethylene
  • EVA ethylene
  • the bellows is a hose composed of peaks and troughs.
  • the vertex angle e of each peak is equal to the bottom angle f of the trough, so the adjacent two peaks are in the same direction.
  • the upper edges g and h are parallel, and when the angle e and the angle f are equal to 90 degrees, the compression performance and the tensile performance of the bellows are equal; when the angle e and the angle f are both acute angles, the angle e and the angle f are pulled by the acute angle until The flat angle has a large stretching space, but the tensile resistance is also large.
  • the bellows may not return to the original state when the angle e and the angle f become a flat angle.
  • Phenomenon on the contrary, if the bellows is compressed, since the angle e and the angle f are changed from an acute angle to a 0 degree angle, it is relatively easy, a triangle surrounded by one peak and two troughs, because the apex angle is an acute angle, this triangle The apex angle stiffness is small, and the two troughs are relatively easy to compress when the compression performance is greater than the tensile performance; when the angle e and the angle f are obtuse angles, it is relatively easy to change the angle e and the angle f from an obtuse angle to a flat angle.
  • the working state of the bellows is from the original state of compression to the state of compression, and the compression performance of the bellows is required to be greater than the tensile performance; if the limb of the patient is in a straight state and cannot be bent, the initial state of the bellows is required to correspond to When the patient's limb is stretched, the bellows needs to be stretched when the patient's limb is bent.
  • the angle e and the angle f are obtuse angles, and the angle e and the angle f are less resistant from the obtuse angle to the flat angle (straightened state). Easier to implement;
  • the angle e and the angle f are both acute angles, and the compression performance of the bellows is greater than the tensile performance. It is suitable for the case where the limb of the patient is in a curved state and needs to be straightened; the height difference between the peak and the trough, that is, the peak height i is larger.
  • Tensile and compressive properties, thickness t is related to the gas pressure of the bellows. The greater the gas pressure, the greater the thickness t.
  • the thickness of the bellows used to assist finger movement in Figure 2 is 0.5 mm.
  • the bellows In order to prevent the bellows from compressing, that is, when the gas pressure in the bellows becomes lower, the bellows are indented at both ends, and the strength is strengthened at both ends of the bellows, and a boss having a thickness l is added in the middle of the end bottom, and the last one
  • the peak width increases from t to k, and the chamfer m is added to the end face, which increases the strength of the end of the bellows.
  • the peak width of the first section is also increased from t to k, and the arc surface is added to the end surface. This causes the first end of the bellows to not collapse when the air pressure in the bellows is lowered.
  • FIG. 3 is a structural view of a finger assisting member for a bellows, wherein 3 is a bellows in FIG. 3, and 2 is a finger joint rehabilitation exercise aid, which includes a rubber member 21, a small bracket 22, a middle bracket 23, and a large bracket 24; 22.
  • the middle bracket 23 and the large bracket 24 are both fixed on the rubber member 21, and the bellows 3 is fixed by the small bracket 22, the middle bracket 23 and the large bracket 24.
  • the bellows can also be applied in other situations, such as assisting the patient to perform bending training from a stiff state, joint rehabilitation of the waist, legs and arms.
  • the diameter, thickness and length of the bellows may vary depending on the application. Different.
  • the equipment for controlling the gas pressure in the bellows is any equipment capable of performing suction, compression and exhaust, such as an electric air pump, a manual air pump, a foot air pump, and the like.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Tools (AREA)

Abstract

一种波纹管（3），波纹管（3）是由若干波峰和若干波谷相间连接成的内部中空的管，波纹管（3）的末端的端面中间设置有凸台，波纹管（3）首端的第一节和末端的最后一节均是波峰，首端的第一节波峰和末端的最后一节波峰的宽度均大于波纹管（3）的厚度，防止波纹管（3）内的气压降低时，波纹管（3）的末端和首端内陷。这样，波纹管（3）与其他关节康复运动辅助件相配合，通过控制波纹管（3）内的气压，迫使波纹管（3）进行压缩或拉伸运动的同时，带动患者关节进行运动，帮助患者进行康复训练。

Description

一种波纹管 技术领域
本发明涉及关节运动辅助技术领域，具体涉及一种波纹管。
背景技术
临床证实,在患者肢体手术后或脑神经损伤的早期康复及自发恢复期间,实施连续被动运动可以补偿患者主动运动的不足,增大其肢体活动度,同时减少相应的并发症。另外，目前的患者中存在由于脑梗塞等中枢神经损伤造成手指麻痹而挛缩的情况下等，这种情况下，如果可以辅助患者的手指进行运动，则可以增加患者手指的恢复速度。
鉴于上述缺陷，本发明创作者经过长时间的研究和实践终于获得了本发明。
发明内容
为解决上述技术缺陷，本发明采用的技术方案是：提供一种波纹管，所述波纹管是由若干波峰和若干波谷相间连接成的内部中空的管，所述波纹管的末端的端面中间设置有凸台，所述凸台厚度大于所述波纹管的厚度，所述波纹管首端的第一节和末端的最后一节均是波峰，首端的第一节波峰和末端的最后一节波峰的宽度均大于所述波纹管的厚度，防止所述波纹管内的气压降低时，所述波纹管的末端和首端内陷。
较佳的，所述波纹管的末端的端面上设置有倒角，防止所述波纹管内的气压降低时，所述波纹管的末端和首端内陷。
较佳的，所述波纹管的首端的端面上设置有圆弧面，防止所述波纹管内的气压降低时，所述波纹管的末端和首端内陷。
较佳的，所述波纹管波峰的顶角和波谷的底角相等。
较佳的，所述波纹管波峰的顶角为锐角时，所述波纹管的压缩性能大于拉伸性能。
较佳的，所述波纹管波峰的顶角为钝角时，所述波纹管的压缩性能小于拉伸性能。
与现有技术比较本发明的有益效果在于：该波纹管与其他关节康复运动辅助件想配合，通过控制波纹管内的气压，迫使波纹管进行压缩或拉伸运动的同时，带动患者关节进行运动，帮助患者进行康复训练。
附图说明
为了更清楚地说明本发明各实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍。
图1是一种波纹管的结构图；
图2是一种波纹管的剖面图；
图3是波纹管在佩戴在手指关节康复运动辅助件的上的结构图。
具体实施方式
以下结合附图1～图3对本发明上述的和另外的技术特征和优点作更详细的说明。
图1是一种波纹管的结构图，该波纹管与用在手指、脚趾、腿或胳膊等需要辅助康复运动的机构相配合，波纹管内部中空，通过控制波纹管内的气压，迫使波纹管做拉伸和压缩运动，从而使需要康复运动的关节在波纹管的拉伸和压缩运动的带动下进行被迫运动；波纹管材质是高压聚乙烯(HDPE)或乙烯 (EVA)。
图2是波纹管的剖面图，由图可知，波纹管是由波峰和波谷相间组成的软管，每个波峰的顶角e和波谷的底角f相等，所以相邻的两个波峰同一方向上的边g和h平行，角e和角f等于90度时，波纹管的压缩性能和拉伸性能相等；角e和角f都是锐角时，角e和角f如果由锐角被拉直到平角，其拉伸空间较大，但拉伸阻力也会很大，由于受到波纹管材质和拉伸角度过大的影响，在角e和角f变成平角时波纹管会出现不能回复原状的现象，相反，如果对波纹管进行压缩，因为角e和角f由锐角压缩变成0度角，相对容易，由一个波峰、两个波谷围成的三角形，因为顶角波峰为锐角，这个三角形的顶角刚度较小，两个波谷被压缩时就相对容易，此时压缩性能大于拉伸性能；角e和角f都是钝角时，角e和角f由钝角变成平角相对容易，由一个波峰、两个波谷围成的三角形，因为顶角波峰为钝角，这个三角形的顶角刚度较大，两个波谷被压缩时就不容易被压缩，此时波纹管的拉伸性能大于压缩性能；对于本专利，如果患者骨骼弯曲变形，不能伸直，需要由弯曲变伸直，波纹管工作状态是由弯曲原始状态到压缩状态，要求波纹管压缩性能大于拉伸性能；如果患者肢体处于伸直状态，不能弯曲，那需要波纹管初始状态对应于患者肢体伸直状态，患者肢体弯曲时，波纹管需要被拉伸，这时角e和角f都是钝角，角e和角f由钝角到平角(拉直状态)遇到的阻力较小，比较容易实现；
图2中角e和角f都是锐角，波纹管压缩性能大于拉伸性能，适用于患者肢体处于弯曲状态，需要伸直的情况；波峰和波谷之间的高度差，即峰高i越大，波纹管的压缩性能越好，但在波纹管外径D固定不变时，峰高i越大，内径d越小，会影响波纹管的充气量；波纹管的厚度t数值太大会影响其拉伸和压缩性能，厚度t与波纹管承受的气体压力有关，气体压力越大，厚度t也越大，图2 中用于辅助手指运动的波纹管的厚度为0.5毫米。
为了防止波纹管在压缩时，即波纹管内的气体压力变低时，波纹管两端内陷，在波纹管两端进行强度加强处理，在末端底部中间增加了厚度为l的凸台，最后一节波峰宽度由t增加为k，在端面上增加了倒角m，这使得波纹管末端的强度增加，在波纹管内的气压降低时，波纹管末端不会内陷，影响使用效果；波纹管首端第一节波峰宽度也由t增加为k，端面上增加了圆弧面，这使得波纹管内的气压降低时，波纹管首端不会内陷。
图3是波纹管用手指辅助件上的结构图，图3中3为波纹管，2为手指关节康复运动辅助件，其包括橡胶件21、小支架22、中支架23和大支架24；小支架22、中支架23和大支架24均固定在橡胶件21上，波纹管3用小支架22、中支架23和大支架24加以固定。如果患者手指是弯曲的，在波纹管里充入平压气体时，将图3中的手指辅助件佩戴在患者手指上，此时使波纹管内的气压降低，波纹管进行压缩变成伸直状态，带动着患者手指由弯曲逐渐伸直，重复进行这个动作，患者手指就可以被动进行康复训练。
当然波纹管还可以应用在其他情况下，如辅助患者由僵直状态进行弯曲训练、腰部、腿和胳膊的关节康复训练，这时的波纹管的直径、厚度、长度可能根据应用情况的不同而有所不同。
控制波纹管内气体压力的设备是一切能够完成吸气、压缩和排气的设备，如电动气泵、手动气泵、脚动气泵等。
以上所述仅为本发明的较佳实施例，对本发明而言仅仅是说明性的，而非限制性的。本专业技术人员理解，在本发明权利要求所限定的精神和范围内可对其进行许多改变，修改，甚至等效，但都将落入本发明的保护范围内。

Claims (6)

  1. 一种波纹管，其特征在于，所述波纹管是由若干波峰和若干波谷相间连接成的内部中空的管，所述波纹管的末端的端面中间设置有凸台，所述凸台的厚度大于所述波纹管的厚度，所述波纹管首端的第一节和末端的最后一节均是波峰，首端的第一节波峰和末端的最后一节波峰的宽度均大于所述波纹管的厚度，防止所述波纹管内的气压降低时，所述波纹管的末端和首端内陷。
  2. 根据权利要求1所述的波纹管，其特征在于，所述波纹管的末端的端面上设置有倒角，防止所述波纹管内的气压降低时，所述波纹管的末端和首端内陷。
  3. 根据权利要求2所述的波纹管，其特征在于，所述波纹管的首端的端面上设置有圆弧面，防止所述波纹管内的气压降低时，所述波纹管的末端和首端内陷。
  4. 根据权利要求1至3中任一所述的波纹管，其特征在于，所述波纹管波峰的顶角和波谷的底角相等。
  5. 根据权利要求4所述的波纹管，其特征在于，所述波纹管波峰的顶角为锐角时，所述波纹管的压缩性能大于拉伸性能。
  6. 根据权利要求4所述的波纹管，其特征在于，所述波纹管波峰的顶角为钝角时，所述波纹管的压缩性能小于拉伸性能。
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