摘要:
A suspension liner is adapted to provide an interface between a residual limb and a prosthetic socket. The liner includes an elongate, generally conical body portion, and a volume control pad located along the body portion. The volume control pad is arranged to distend outwardly from the body portion. A resilient seal element is connected to the body portion and protrudes radially from the body portion, and is located in correspondence with the volume control pad.
摘要:
An improved socket for a prosthesis uses a liner material providing fluid flow through a porous matrix whose local pressure is adjusted by a control system communicating with multiple valves and pressure sensors. Control of pressure in a viscoelastic material provides an improved trade-off between comfort and stability.
摘要:
Changes in the volume of residual limbs on which prosthetic sockets are worn can be measured based on bioimpedance measurements along one or more segments of the limb. A current at an appropriate frequency (e.g., in the range from 1 kHz to 1 MHz) is injected at two current electrodes that contact the skin of the residual limb. The voltage at the voltage electrodes disposed between the current electrodes is measured and using an appropriate model, the change in the segmented volume of the limb can be determined during periods of different activity and at different times during the day. This information can be used for assessing the fit of the socket and can also provide a feedback signal for automatically controlling volume management devices, to ensure a more comfortable fit when the volume of the limb is changing.
摘要:
The invention relates to a light prosthesis as a purely optical substitute for a missing limb, including a shaped body (1) for replacing the missing limb as naturally as possible and a socket (2) for connecting the prosthesis to the stump (3) of the missing limb. In order to provide such a prosthesis for temporary or permanent use without having to fulfill any functionality, thus being suitable also for elderly patients, it is contemplated that the shaped body (1) is made of a light synthetic material, and that the periphery of the socket (2) for connecting the prosthesis to the stump (3) is variable in a manner known per se. The shaped body (1) may, in particular, also be made of an elastic, air-tight synthetic material (9) and include at least one valve (10) for inflating the shaped body (1).
摘要:
An improved socket for a prosthesis uses a liner material providing fluid flow through a porous matrix whose local pressure is adjusted by a control system communicating with multiple valves and pressure sensors. Control of pressure in a viscoelastic material provides an improved trade-off between comfort and stability.
摘要:
A soft gelatinous elastomer composition and article useful as fishing bait, floss, liner and other uses formed from one or a mixture of two or more of a one or a mixture of two or more of a hydrogenated controlled distribution styrene block copolymer(s) and one or more plasticizers being in sufficient amounts to achieve a gel rigidity of from about 20 gram Bloom to about 1,800 gram BlooField of the Invention.
摘要:
Soft, tear resistant gel, gel composites and gel articles for various uses formed from one or a mixture of two or more block copolymers with or without one or more selected other polymers and additives in combination with one or more selected plasticizers being in sufficient amounts to achieve a gel rigidity of from about 20 gram Bloom to about 1,800 gram Bloom.
摘要:
Soft, tear resistant gel, gel composites and gel articles for various uses formed from one or a mixture of two or more block copolymers with or without one or more selected other polymers and additives in combination with one or more selected plasticizers being in sufficient amounts to achieve a gel rigidity of from about 20 gram Bloom to about 1,800 gram Bloom.
摘要:
Novel gelatinous compositions and articles are formed from an intimate melt blend admixture of one or more of a high viscosity poly(styrene-ethylene-butylene styrene), poly(styrene-ethylene-ethylene-propylene-styrene), poly(styrene-ethylene-butylene)n, and poly(styrene-ethylene-propylene)n triblock and branched copolymers and high levels of a plasticizing oil.
摘要:
A socket device of a prosthetic includes a liner with a variable viscosity fluid disposed between the socket and the user's stump. The variably viscosity fluid varies the softness or stiffness of socket. In addition, the variable viscosity fluid conforms to the contours of the user's stump for a more customized fit. The variable viscosity fluid can include a shear stiffening material that increases in viscosity as a load or strain, or rate of loading or rate of strain, applied, or a magneto or electro rheologic fluid responsive to a magnetic or electric field.