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公开(公告)号：US5405407A
公开(公告)日：1995-04-11
申请号：US4765
申请日：1993-01-14
CPC分类号： A61F2/64 , F16F9/0236 , F16F9/342 , F16F9/44 , A61F2002/5003 , A61F2002/74
摘要： In an artificial leg for a person having an upper thigh cut and a knee joint lost, a cylinder disposed between upper and lower leg members, which are coupled through a pivotable joint, for controlling bending and straightening of the joint by an air cushion for convenience of walking. The cylinder includes a cylindrical sleeve closed at both ends and a piston having a piston rod and sliding in the sleeve, and has its structure improved by using as a cushion one of two inner cavities separated by the piston, which encloses the piston rod, thereby buffering butting between the upper and lower leg members to remove unpleasant shock resulting at the end of straightening the joint.
摘要翻译： 在具有上大腿切口和膝关节失去的人的人造腿中，设置在上腿部件和下腿部件之间的圆筒，其通过可枢转接头联接，以便于方便地通过气垫来控制接头的弯曲和矫直 的走路。 气缸包括在两端封闭的圆柱形套筒和具有活塞杆并在套筒中滑动的活塞，其结构通过使用包围活塞杆的活塞隔开的两个内腔内的缓冲垫来改善，由此 缓冲上下腿构件之间的对接，以消除在矫正关节结束时引起的不愉快的冲击。
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公开(公告)号：US5899943A
公开(公告)日：1999-05-04
申请号：US909960
申请日：1997-08-12
CPC分类号： A61F2/64 , A61F2/68 , A61F2002/30024 , A61F2002/30393 , A61F2002/5003 , A61F2002/5007 , A61F2002/503 , A61F2002/5039 , A61F2002/5072 , A61F2002/5087 , A61F2002/6818 , A61F2002/745 , A61F2002/747 , A61F2220/0025 , A61F2250/0021
摘要： Paying attention to the mechanical play between the first and second support members for supporting opposite end portions of a knee axis and a brake block located between the support members, the present invention chiefly aims at removing the play in the direction of an axis of the knee axis in an effective and a reliable manner. In order to achieve this object, according to the present invention, a plurality of spacer members are inserted between each support member and the brake block such that the spacer members may slide on the mutual abutment surface. Each spacer member is of a ring type. The spacer members are fitted to and supported by the knee axis in a state that the spacer members are overlaid one upon another in the axial direction of the knee axis. In order to enhance the smooth sliding on the abutment surface, the spacer members are preferably made of resin material. In order to enhance the smoother sliding, at least one spacer member having the abutment surface is more preferably made of resin of low friction, such as oil-contained resin or phenol resin. The remaining spacer member contacting the resin of low friction may be made of such resin as polyacetal, polyamide and tetraethylene fluoride. Most preferably, one spacer member is made of oil-contained polyacetal resin which is especially excellent in low friction, and the remaining spacer contacting the first-mentioned spacer member is made of non-oil contained polyacetal resin.
摘要翻译： 注意第一支撑构件和第二支撑构件之间的机械作用，用于支撑膝部轴线的相对端部和位于支撑构件之间的制动块，本发明主要旨在消除膝盖的轴线方向上的游隙 轴以有效和可靠的方式。 为了实现这一目的，根据本发明，在每个支撑构件和制动块之间插入多个间隔构件，使得间隔构件可以在相互邻接表面上滑动。 每个间隔件是环形的。 隔离构件在膝部轴线的轴向上彼此重叠的状态下装配并由膝部轴线支撑。 为了增强邻接表面上的平滑滑动，间隔件优选由树脂材料制成。 为了增强更平滑的滑动，至少一个具有邻接表面的间隔件更优选地由低摩擦的树脂制成，例如含油树脂或酚醛树脂。 与低摩擦树脂接触的剩余间隔件可以由聚缩醛，聚酰胺和四氟化乙烯等树脂制成。 最优选地，一个间隔件由具有特别优异的低摩擦性的含油聚缩醛树脂制成，并且与第一个间隔件接触的剩余间隔物由非油包含的聚缩醛树脂制成。
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公开(公告)号：US6086616A
公开(公告)日：2000-07-11
申请号：US271780
申请日：1999-03-18
CPC分类号： F16F1/12 , A61F2/644 , A61F2002/5003 , A61F2002/5018 , A61F2002/5043 , A61F2002/5073 , A61F2002/747
摘要： There is provided a prosthetic leg with an extension auxiliary mechanism 1100 capable of generating an extension torque only when an angle of bending of the knee is small. A knee joint 80 of a thigh prosthesis 170 is of a multi-axis structure, and a front and a rear link 130, 150 together with an upper thigh member 110 and a lower thigh member 120 constitutes a constrained chain. An extension auxiliary mechanism 1100 having a compression spring is supported between the lower thigh member 120 and the rear link 150. An extension torque generated by the extension auxiliary mechanism 1100 is determined by a product of a force caused by biasing of the compression spring and a distance from a line of action of the force to the center of rotation of the rear link 150. Here, at a stage where the bending angle of the knee exceeds, for example, 15 degrees, an axis of the compression spring is brought generally into alignment with a connecting portion 170O between the rear link 150 and the lower thigh member 120. By doing so, the distance related to the extension torque becomes approximately zero and the extension torque itself becomes approximately zero.
摘要翻译： 提供了一种具有延伸辅助机构1100的假腿，仅在膝盖的弯曲角度较小时才能产生延伸转矩。 大腿假体170的膝关节80具有多轴结构，并且前连杆130和后连杆130以及大腿部件110和下大腿部件120构成受约束的链条。 具有压缩弹簧的延伸辅助机构1100被支撑在下大腿构件120和后连杆150之间。由延伸辅助机构1100产生的延伸转矩由压缩弹簧的偏置力和 从力的作用线到后连杆150的旋转中心的距离。这里，在膝部的弯曲角超过例如15度的阶段，压缩弹簧的轴线通常进入 与后连杆150和下大腿构件120之间的连接部分170O对准。通过这样做，与延伸转矩相关的距离变为近似为零，并且延伸转矩本身变为近似为零。
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公开(公告)号：US5888237A
公开(公告)日：1999-03-30
申请号：US951781
申请日：1997-10-16
CPC分类号： A61F2/68 , A61F2/64 , A61F2002/30393 , A61F2002/5003 , A61F2002/5007 , A61F2002/503 , A61F2002/5039 , A61F2002/5058 , A61F2002/5072 , A61F2002/6818 , A61F2002/745 , A61F2002/747 , A61F2002/748 , A61F2220/0025
摘要： An artificial limb provides for positional relation between a first pin for rotatably connecting one end of an air cylinder device to a lower member and a second pin for rotatably connecting the other end of the air cylinder device to an upper member. The attaching position of the second pin is set to satisfy certain predetermined conditions when an artificial limb is in a completely extended state. The position of an air cylinder device (particularly, the attaching position of the second pin) is changed in conformity with a walking speed which is variable in phase such as normal walking, quick walking, and running with small steps. The artificial limb further comprises a pin position change capable of changing the position of a second pin rotatably connected to an upper member in conformity with variation of walking speed. A first example of the pin position change includes a plurality of attachment holes formed on the knee plate of the upper member and the position of the second pin is changed by attaching the second pin selectively to one of the attachment holes. If it is designed such that an elongate hole is formed along a circular arc so that the attaching position to the elongate hole can be changed, the position of the second pin can be changed steplessly or successively.
摘要翻译： 假肢提供用于将气缸装置的一端可旋转地连接到下部构件的第一销和用于将气缸装置的另一端可旋转地连接到上部构件的第二销之间的位置关系。 当假肢处于完全伸展状态时，第二销的安装位置被设定为满足一定的预定条件。 气缸装置的位置（特别是第二销的安装位置）根据正常步行，快速行走和小步进的相位可变的步行速度而变化。 假肢还包括能够根据步行速度的变化改变可旋转地连接到上部构件的第二销的位置的销位置变化。 销位置变化的第一示例包括形成在上部构件的膝盖板上的多个附接孔，并且通过将第二销选择性地附接到附接孔中的一个来改变第二销的位置。 如果设计成沿着圆弧形成细长的孔，使得能够改变与细长孔的连接位置，则可以无级地或相继地改变第二销的位置。
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