Abstract: An improved sealing member for use with a vacuum suspension prosthetic device, with the sealing member located along the top edge of a stump socket and made of a pliable material to provide an improved seal between the stump and the socket in order to maintain vacuum levels within the socket and to minimize cutting or tearing of the stump liner.

Abstract: A controlled-stretch prosthetic liner comprising a polymeric material covered with at least a stretch-controlling fabric. Certain liner types, such as below knee (BK) liners, may also include a panel of more stretchable fabric so as to prevent any interference with knee flexion. The polymeric material of the liner may also be used to control liner stretch, such as by adding Kevlar pulp or other materials that increase the strength and reduce the elasticity of the polymeric material and/or by reducing the amount of plasticizer(s) present therein. The stretch-controlling fabric, possibly in conjunction with the polymeric material, acts to limit the longitudinal stretch of the liner while not adversely affecting the radial stretch thereof.

Abstract: A suspension liner for a residual limb has a liner body with a plurality of anterior and posterior projections formed from a thickness of the liner body. Medial and lateral tendons are located between and correspond to profiles of the plurality of the anterior and posterior projections such that the medial and lateral tendons are located on opposed sides of the liner body relative to one another. The medial and lateral tendons flare circumferentially toward proximal and distal sections of the liner body.

Abstract: A gel liner made by starting initially with a one-piece knitted tubular sock-shaped fabric having a closed distal end section of gel impermeable knitted fabric, an open proximal end section of gel impermeable knitted fabric and at least one intermediate section being a gel permeable loosely knitted fabric. Molding the liner to have a gel cushion layer on its interior surface with the gel passing through and embedding the at least one intermediate fabric section therein to form at least one annular seal. The intermediate fabric section selected of meltable fibers and knit construction that may or may not be melted by the gel during the molding process whereby the at least one annular seal is not inhibited in compression and/or elongation by the presence or absence of fabric when the liner is worn thereby reducing or eliminating any discomfort of the liner during ambulation caused by the annular seal.

Abstract: An anatomical socket is fashioned to attach to an amputated limb, which can be a median between the amputated limb and the prosthesis device. The method produces, based on specific measurements of a user, an anatomical socket that provides the user with cosmesis, a greater range of motion, a better gait and comfort. The socket has a low upper rim to allow for the greatest mobility of the hip joint. The socket is produced of a durable and smooth plastic. The socket fits in a secure, yet removable manner to the prosthesis. The method disclosed herein takes precise measurements of the wearer's limb to provide for optimal fitting and comfort.

Abstract: A tubular liner has an open proximal end and a closed-end distal area, and a fabric layer continuously defining an exterior surface of the liner without interruption. A polymeric layer having first and second surfaces is bonded to an interior surface of the fabric layer. A seam is formed by opposed sides of the fabric layer joined together and forming an excess portion directed toward the cavity of the liner. The excess portion is embedded in the polymeric layer.

Abstract: An assembly may include a plurality of electrode contacts adapted to receive myoelectric signals from a body when placed into contact with the body. The assembly may also include a support structure adapted to support the electrode contacts. The assembly may also include a prosthetic liner, the support structure being embedded in the prosthetic liner. The electrode contacts may be positioned to be extending through openings in the prosthetic liner. The assembly may also include signal processing circuitry adapted to process the myoelectric signals from the body. Other embodiments are described and claimed.

Abstract: The present invention relates to a coupling device (100) for connecting a residual limb liner (10) to a residual limb socket (20) of a limb prosthesis, characterised by: a magnet assembly (120) comprising a permanent magnet (122) sandwiched by a pair of iron bars (124) for creating a magnetic field; a housing (110) comprising a protrusion (112) for intensifying magnetic field and a cavity (114) for receiving the magnet assembly (120), wherein said housing (110) is embedded at a distal end of the residual limb socket (20); a controlling means (130) coupled to the housing (110) and the magnet assembly (120) for controlling the magnetic field by rotating the magnet assembly (120); and a mounting plate (140) coupled to the residual limb liner (10); wherein the mounting plate (140) is attracted to the protrusion (112) of the housing (110) when the permanent magnet (122) is vertically aligned, thereby attaching the residual limb liner (10) to the residual limb socket (20); and wherein the mounting plate (140) is re

Abstract: A lever-actuated distal lock connects a limb liner to a prosthetic leg or arm hard socket. In some versions, air-sealing capability may limit/prevent air flow through the distal lock, even with vacuum inside the socket. To unlatch the lock, a lever is swung to pull a sliding shaft outward in the lock housing. Swung in the opposite direction, the lever releases the sliding shaft to be biased to a latched position wherein slanted surfaces of the shaft inner end and a liner pin cooperate to allow the pin to slide down into, but not up out of, the lock. In some versions, the shaft inner end slides relative to, but is biased away from, the shaft opposite end, so that the inner end moves out of the way of the downwardly-sliding pin, without moving the entire lock shaft and without disrupting the optional air seal.

Abstract: A lock connects the distal end of a liner to the distal end of the hard socket of a prosthetic leg, and limits or prevents air flow into the hard socket through the distal lock mechanism, even when vacuum is established inside the socket. The distal lock normally is latched, but can be conveniently unlatched by swinging a cammed latch handle. The liner pin may be inserted and locked into the distal lock, without the distal lock being unlatched and without losing the internal air seal preventing air flow through passages of the lock. A slidable, biased lock blade, and interaction between slanted surfaces of the blade and the liner pin, allow the pin to slide down, but not up, past the blade. The latch handle does protrude radially outward a significant distance, when the lock is unlatched, but, as soon as the lock is latched, the handle resides against and/or near the outer surface of the lock housing.

Abstract: A prosthetic sock for a patient to wear over a residual limb is provided. The prosthetic sock includes an inner layer configured to fit over at least a portion of the residual limb of the patient. A foam layer is disposed on an outer surface of the inner layer. The foam layer compensates for changes in shape or volume of the residual limb within the prosthetic sock by changing shape in a manner effective to maintain a secure fit between the residual limb and a prosthetic socket of a prosthetic limb.

Abstract: A prosthetic liner having a base elastic fabric layer impregnated with cushioning material on an interior surface of the base fabric layer and having one or more additional elastic fabric layers secured to and overlapping the base fabric layer to form pockets for introducing and retaining various types of padding selected by the user.

Abstract: A removable liner used in conjunction with a socket for a prosthetic device, in which a vacuum is wicked across the entire area of a porous fabric of the liner, is disclosed. The liner preferably includes a shaped-layer made from one of either a silicone or a urethane and has an exterior surface, an interior surface and a passage therein which opens at each of the two surfaces and connects to a valve of the socket. The liner further includes a first porous fabric covering at least a portion of the exterior surface of the shaped-layer including the corresponding opening of the passage, and a second porous fabric covering at least a portion of the interior surface of the shaped-layer including the corresponding opening of the passage. A vacuum source coupled to the liner, via the valve on the socket, draws a vacuum which is wicked across the entire surface of the first and second porous fabrics which interface with the socket and the user's residual limb, respectively.

Abstract: A tube-sock shaped polymeric covering for wearing over an amputation stump. The covering has an open end for receiving the amputation stump and a closed end opposite the open end. The covering includes a docking means for attachment of an external device to the covering. The covering may also include one or more areas of reinforcing material that can be present in the form of a strip or rod, for example. The reinforcing material is comprised of a material that is less stretchable than the polymeric material forming the covering, and acts to reduce stretching and/or movement of the covering.

Abstract: A multi-piece therapeutic cover that assembles to warm, cushion and stabilize the thigh of a below-knee amputee. A thigh piece contains a resiliently rigid channel piece and several laterally extending, wings including sizing tabs that overlap and cooperate with associated straps. A stump contact piece, end cap piece and knee cover piece contain foam pads to cushion the stump end and knee. Strips of hook and loop fastener material arrayed about the surfaces of the protector pieces judiciously overlap to contain the protector pieces to each other and the limb. Buckled straps further support the protector assembly to the limb.

Abstract: A sleeve has interior and exterior surfaces, a proximal opening in a proximal area, and a distal area, and is adapted to be worn on a residual limb and at least partially over a definitive socket. The sleeve includes a fabric layer continuously forming the exterior surface of the sleeve. A polymeric layer is bonded to the fabric layer and forms the interior surface of the sleeve. A reinforcement layer is arranged in a localized area of the sleeve between the proximal and distal areas of the sleeve.

Abstract: A modular prosthesis system that can be inexpensively manufactured using modern technology and advanced polymer materials. The modular prosthesis system will be immediately fit on the residual limb and aligned for optimal gait without specialized tools or labs, alleviating the many steps involved with conventional labor-intensive and costly prosthesis construction. The modular prosthesis system also accommodates the changing in size and shape of the limb, eliminating the need for multiple prostheses and adjustments to an existing prosthesis during the lifetime of an amputee.

Abstract: A suspension liner sleeve adapted to provide an interface between a residual limb and a prosthetic socket, and having outer and inner surfaces. The liner sleeve includes an elongate, generally conical body portion formed from at least one material segment defining the liner outer surface. The at least one material segment being at least radially elastically extensible from a relaxed non-extended condition and including proximal and distal end areas. The liner sleeve includes a layer of polymeric material disposed on the at least one material segment and defining the liner sleeve inner surface, and a plurality of resilient seal elements protruding radially from the liner sleeve outer surface. The plurality of seal elements extend around at least one peripheral portion of the liner body portion. A pair of opposed annular recesses may be adjacently located above and below each of the at least one seal element.

Abstract: A prosthesis system includes a reconfigurable socket. The socket changes configurations to adjust the socket fit. The socket includes a socket main body with a window and a panel positioned in the window. The panel and the socket main body cooperate to define a cavity for receiving a residual limb. A lacing system is coupled to both the socket main body and the panel and moves the panel with respect to the socket main body to adjust a volume of the cavity. A tensioning mechanism holds the lacing system to position the adjustment panel. The prosthesis system also allows for the escape of moisture from within the cavity.

Abstract: The airflow regulation system is to be attached to a residual limb of an amputee. The device includes an airflow liner to define a regulated environment between the residual limb and the airflow liner. The liner has a plurality of airflow passageways defining inflow air channels and an outflow air channel in fluid communication with the defined regulated environment. An airflow control system is connected inline with the outflow and inflow air channels. The airflow control system includes an airflow regulation device, such as a vacuum pump, and an airflow initiating device, such as a solenoid.

Abstract: A Rapid Fit Modular Prosthetic Device that can be inexpensively manufactured using modern technology and advanced polymer materials. The Rapid Fit Modular Prosthetic Device will be immediately fit on the residual limb and aligned for optimal gait without specialized tools or labs, alleviating the many steps involved with conventional labor-intensive and costly prosthesis construction. The Rapid Fit Modular Prosthetic Device also accommodates the changing in size and shape of the limb, eliminating the need for multiple prostheses and adjustments to an existing prosthesis during the lifetime of an amputee.

Abstract: The sealing sheath is for use with a prosthetic socket and associated liner. The sealing sheath includes a textile tube for surrounding at least a portion of a liner that is configured to wear on a residual limb. An annular seal, e.g. an elastomeric or silicone seal, is positioned adjacent a proximal end of the textile tube and continuously extends from an inside of the textile tube configured to be adjacent the liner, through the textile tube to an outside thereof configured to be adjacent an inside of the prosthetic socket. The annular seal may include a first wing on an inside of the textile tube configured to be adjacent the liner, a second wing on an outside of the textile tube configured to be adjacent an inside of the prosthetic socket, and a base connecting lower ends of the first and second wings to define a v-shaped cross-section of the annular seal.

Abstract: A below knee amputee prosthesis liner including a molded polymer-like liner body for receiving a below knee amputation limb of a person. The liner body has a closed distal end and an open proximal end. The liner includes at least one thickening in a first region and/or in a second region. The first region is adapted to cover a head of the fibula of the amputation limb and the second region is adapted to cover a shinbone of the amputation limb, once the amputation limb is received in the liner body.

Abstract: An antimicrobial containment cap is provided for use in a bone anchored prosthesis mounting system of the type having an externally protruding fixator pin carried by all implanted bone anchored mounting post, wherein the fixator pin accommodates removable attachment to an exoskeletal prosthesis such as a prosthetic limb or the like for an amputee. The containment cap, when mounted onto the fixator pin, is interposed between the prosthesis and soft tissue covering the end or stump of an amputated residual limb or the like. The containment cap carries and supports a selected antimicrobial or antibacterial agent in substantial contact with the soft stump tissue in a position closely overlying and substantially circumscribing the tissue interface with the externally protruding fixator pin to safeguard against infection. The containment cap is adapted for quick and easy periodic removal for cleaning and/or replenishment of the antimicrobial agent.

Abstract: Prosthetic attachment techniques, systems, and apparatus are described including those having so called Chinese Finger Trap features.

Abstract: A silicone liner unit used for prosthetic limbs includes a silicone liner portion, a smooth outer layer, an inner layer and an innermost layer. The silicone liner portion is made of silicone elastomer liner and has an open end. The smooth outer layer is made of Hl a-methyl-Disilane or a compound containing poly-p-xylene and may have a slightly protrusive pattern on its outer surface. The inner layer is made of fibrous tissue and is flexible. The innermost layer is disposed on top of the inner layer and is made of silicone elastomer liner to enhance the strength of the improved silicone liner unit. The smooth outer layer allows the improved silicone liner unit to be put on and taken off easily.

Abstract: An attachment system secures a residual limb to an artificial limb in a comfortable and substantially non-rotational manner. The attachment system offers proximal anchoring of the residual limb in a hard socket, by connecting a side surface of a residual limb liner to the side surface of the socket. Preferably, this connection is accomplished using an extension member extending from the liner through a portion of the socket interior, through the socket wall, and attaching to a latch mechanism. The preferred attachment system requires no clearance in the bottom of the socket well because neither the extension member nor the latch mechanism is located between the distal end of the residual limb/liner and the bottom of the well. The attachment system is preferably disposed entirely along the side of the limb and the side of the socket.

Abstract: Prosthesis tube adapter, comprising a tube and an adapter head, connected thereto, with a connecting sleeve which is fitted on the tube and in a connecting region is connected to this via an adhesive joint, wherein the connecting sleeve (8) and the tube (9) have complementarity inter-engaging, axially and radially abutting connection geometries in the connecting region in such a way that the prosthesis tube adapter (4) has a constant outside diameter right up to the region of the adapter head (7).

Abstract: A device for heating and/or controlling the temperature of the socket of an orthopaedic appliance, which receives the distal end of an amputation stump, the device including a heating element arranged in the prosthetic appliance such that the parts of the socket in contact with the distal end of the amputation stump are heated and/or maintained at a predetermined temperature. A method is also disclosed for improving the wearing comfort of an orthopaedic appliance, and to an orthopaedic appliance.

Abstract: A suspension liner is provided for use as an interface between a residual limb and a prosthetic socket. The liner has an elongate, generally conical liner body formed from at least one material segment that is at least radially elastically extensible from a relaxed non-extended condition and including proximal and distal end areas, and a seal component connected to the liner body and having an exterior surface defining at least one exterior seal protruding from the exterior surface and extending radially outwardly from the seal component relative to a longitudinal axis of the liner body. The at least one interior seal is located along an interior surface of the seal component and defines at least one blade extending obliquely toward the liner body. A portion of the seal component carrying the interior seal extends freely and is movable relative to the liner body.

Abstract: A prosthetic elastomeric liner, which can be used without lanyards or straps, in which, upon ambulation, perspiration is voided simultaneously with the reestablishment of a vacuum-aided seal without a vacuum pump. The liner's distal tip comprises a buttress anchored sweat port containing a one way valve continuous with a channel passing through the buttress and liner from its inner surface to its outer surface. The sweat port is connected, optionally integrally, to a prosthetic pin which is inserted into a prosthetic limb.

Abstract: The sealing sheath is for use with a prosthetic socket and associated liner. The sealing sheath includes a textile tube for surrounding at least a portion of a liner that is configured to wear on a residual limb. An annular seal, e.g. an elastomeric or silicone seal, is positioned adjacent a proximal end of the textile tube and continuously extends from an inside of the textile tube configured to be adjacent the liner, through the textile tube to an outside thereof configured to be adjacent an inside of the prosthetic socket. The annular seal may include a first wing on an inside of the textile tube configured to be adjacent the liner, a second wing on an outside of the textile tube configured to be adjacent an inside of the prosthetic socket, and a base connecting lower ends of the first and second wings to define a v-shaped cross-section of the annular seal.

Abstract: A liner is arranged for use in prosthetic and orthopedic devices. The liner defines first and second end portions, and inner and outer surfaces. The liner includes an inner layer having a frictional component and forms at least part of the periphery of the inner liner surface. The inner layer defines a plurality of apertures. A porous element is in communication with the inner liner surface and is connected to the inner layer such that the apertures permit a transfer of air from the inner surface to the porous element. A base layer adjoins the porous element and extends between the first and second end portions of the liner.

Abstract: A prosthesis comprising an elastomeric locking liner sized and configured to surround a limb of a patient about a knee joint, the liner having an inner surface for facing the limb of the patient and an outer surface defining an anterior region and a posterior region which are demarcated by an imaginary plane extending midway between the front most portion and rear most portion of the limb along the length of the limb, wherein the anterior region has an anterior material secured thereto and the posterior region has a posterior material secured thereto and the anterior and posterior materials having equal transverse elongation, and the anterior material having a longitudinal elongation greater than the longitudinal elongation of said posterior material, whereby when said prosthesis is donned onto a limb of a patient over the knee and the limb is flexed about the knee, buckling of the prosthesis about the knee is substantially reduced or eliminated and wherein the distal end of the liner includes an insert membe

Abstract: A controlled-stretch prosthetic liner comprising a polymeric material covered with at least a stretch-controlling fabric. Certain liner types, such as below knee (BK) liners, may also include a panel of more stretchable fabric so as to prevent any interference with knee flexion. The polymeric material of the liner may also be used to control liner stretch, such as by adding Kevlar pulp or other materials that increase the strength and reduce the elasticity of the polymeric material and/or by reducing the amount of plasticizer(s) present therein. The stretch-controlling fabric, possibly in conjunction with the polymeric material, acts to limit the longitudinal stretch of the liner while not adversely affecting the radial stretch thereof.

Abstract: A vacuum-assisted liner system for the socket of a limb prosthesis secures the prosthesis to a residual body portion. A vacuum is created directly between the residual body portion and the socket (8) to hold them together and minimize relative movement between them. The system includes a flexible liner (4) made of an impermeable material, at least a distal part (4D) of the liner being porous to allow the transport of air and fluid directly away from the residual body portion to the outer surface of the liner. A fabric distribution layer (6) is located over the liner (4) and between the liner and the socket (8) to allow transmission of such extracted air and fluid laterally over the liner to an evacuation port (10) in the socket.

Abstract: A liner is arranged for use in prosthetic and orthopedic devices. The liner defines first and second end portions, and inner and outer surfaces. The liner includes an inner layer having a frictional component and forms at least part of the periphery of the inner liner surface. The inner layer defines a plurality of apertures. A porous element is in communication with the inner liner surface and is connected to the inner layer such that the apertures permit a transfer of air from the inner surface to the porous element. A base layer adjoins the porous element and extends between the first and second end portions of the liner.

Abstract: A conformable material for an orthotic device including a plurality of fibers each including a plurality of filaments encapsulated by a first thermoplastic material. A second thermoplastic material is configured to bind the plurality of fibers and form the conformable material.

Abstract: An above-the-knee modular prosthetic system contains an outer housing and connector assembly which may both be adjusted to create a custom-like fit for a residual limb. The outer housing contains an inner liner which provides circumference and volume adjustability, while an outer shell adjusts for circumference of a residual limb only. A plurality of additional adjustment components may provide additional customization for the volume, circumference, shape, angle and other physical properties of a residual limb. A connector assembly connects the outer housing to a knee, shank and foot known in the art. The connector assembly contains an upper plate and a lower plate which are adjustably connected to provide adjustments for the angle and position at which a residual limb is connected to a prosthetic limb.

Abstract: A Rapid Fit Modular Prosthetic Device that can be inexpensively manufactured using modern technology and advanced polymer materials. The Rapid Fit Modular Prosthetic Device will be immediately fit on the residual limb and aligned for optimal gait without specialized tools or labs, alleviating the many steps involved with conventional labor-intensive and costly prosthesis construction. The Rapid Fit Modular Prosthetic Device also accommodates the changing in size and shape of the limb, eliminating the need for multiple prostheses and adjustments to an existing prosthesis during the lifetime of an amputee.

Abstract: A modular prosthesis system that can be inexpensively manufactured using modern technology and advanced polymer materials. The modular prosthesis system will be immediately fit on the residual limb and aligned for optimal gait without specialized tools or labs, alleviating the many steps involved with conventional labor-intensive and costly prosthesis construction. The modular prosthesis system also accommodates the changing in size and shape of the limb, eliminating the need for multiple prostheses and adjustments to an existing prosthesis during the lifetime of an amputee.

Abstract: A socket assembly for use with a prosthetic device. The socket assembly receives at least a portion of a residual limb on which the prosthetic device is attached. The socket assembly includes an airtight outer shell adapted and constructed to receive a portion of the residual limb of an amputee, the shell having an interior and an exterior. A vacuum-permeable skin interface is secured to at least a portion of the interior of the outer shell. A high-vacuum valve communicates between the interior of the socket and the exterior of the socket, the valve being adapted and constructed to be attached to a vacuum source. When the residual limb is positioned in the socket assembly and the high-vacuum valve is connected to a vacuum source, the vacuum force exerted by the source is evenly distributed to the residual limb through the skin interface.

Abstract: A prosthetic cushion liner and cushion locking liner for use as a standalone interface between an amputee's residual limb and the interior of a prosthetic socket. The liners include a fabric covering having an open end for introduction of a residual limb and a closed end opposite said open end, and a cushioning block copolymer and plasticizing oil gel composition residing on only an interior surface of the fabric covering. The gel composition includes some amount of a Septon J-Series thermoplastic elastomer material. The cushion locking liner further includes a distally-located docking element for coupling the liner to the socket of a prosthesis.

Abstract: A prosthetic sock monitoring system is disclosed. The sock monitoring system includes a storage device and a data collection unit. The data collection unit is operable to receive data from at least one sensor coupled to a prosthetic sock that is wearable by a patient, and store the received data in the storage device. A prosthetic sock is also disclosed. The sock comprises material shaped to fit over at least a portion of the residual limb of the patient and a thickness adapted for inserting the residual limb into the socket of the prosthesis while the sock is fitted over the residual limb. The sock also comprises one or more of a sock identification unit and a force sensing device.

Abstract: A residual limb model may be a model of a residual limb. A residual limb model may include a residual limb portion and a bladder complementary in shape to the residual limb portion. A prosthesis donning and doffing training system may include a check socket and a residual limb model complementary in shape to the check socket. A method of training in the care of a residual limb may include providing a residual limb model and training in the care of a residual limb using the residual limb model. A method of training in the donning and doffing of a prosthesis may include providing a prosthesis training system and training in the donning and doffing of a prosthesis using the prosthesis training system.

Abstract: A prosthesis comprising an elastomeric locking liner sized and configured to surround a limb of a patient about a knee joint, the liner having an inner surface for facing the limb of the patient and an outer surface defining an anterior region and a posterior region which are demarcated by an imaginary plane extending midway between the front most portion and rear most portion of the limb along the length of the limb, wherein the anterior region has an anterior material secured thereto and the posterior region has a posterior material secured thereto and the anterior and posterior materials having equal transverse elongation, and the anterior material having a longitudinal elongation greater than the longitudinal elongation of said posterior material, whereby when said prosthesis is donned onto a limb of a patient over the knee and the limb is flexed about the knee, buckling of the prosthesis about the knee is substantially reduced or eliminated and wherein the distal end of the liner includes an insert membe

Abstract: The socket system includes a socket and a vacuum liner. A one-way valve is positioned within the closed distal end of the socket and provides controlled fluid communication between the interior socket space and an external environment. The closed distal end of the vacuum liner includes a distal portion formed of a higher durometer elastomeric material than the surrounding portions of the liner, and including a concave section extending from an external surface thereof towards the interior liner space. The socket, on the interior of the closed distal end thereof, includes a receiving portion that corresponds to and receives the distal portion of the vacuum liner 20 (e.g. matching the perimeter and depth of the distal portion). The receiving portion includes a bottom surface (e.g. a flat surface) opposite to the concave section of the vacuum liner when received therein, and defining an exterior liner space therewith.

Abstract: A prosthesis comprising an elastomeric liner sized and configured to surround a limb of a patient about a knee joint, the liner having an inner surface for facing the limb of the patient and an outer surface defining an anterior region and a posterior region which are demarcated by an imaginary plane extending midway between the front most portion and rear most portion of the limb along the length of the limb, wherein the anterior region has an anterior material secured thereto and the posterior region has a posterior material secured thereto and the anterior and posterior materials having equal transverse elongation, and the anterior material having a longitudinal elongation greater than the longitudinal elongation of said posterior material, whereby when said prosthesis is donned onto a limb of a patient over the knee and the limb is flexed about the knee, buckling of the prosthesis about the knee is substantially reduced or eliminated.

Abstract: A tubular casting liner for forming a definitive prosthetic socket includes an outer layer defining first and second surfaces and at least one polymeric layer having first and second surfaces. The first outer layer surface continuously defines at least a portion of the exterior surface of the casting liner, and the at least one polymeric layer first surface is secured to the second surface of the outer layer. A ratio of thickness of the at least one polymeric layer at the distal end area relative to the proximal end area is at least 3:1. The casting liner has a substantially straight profile, wherein a diameter d1 of the liner whereat the distal end area begins to transition to close-ended form is the same or substantially the same as a diameter d2 at the proximal end area. A method and kit for forming a definitive prosthetic socket may use the casting liner.

Abstract: A prosthetic assembly for a residual limb that includes a sleeve for attachment to a distal portion of the residual limb, where the attachment member has a diametrically oriented magnetic field, and a prosthesis with a socket for receiving the sleeve, where the prosthesis socket has a distal end with an attachment member having a corresponding diametrically oriented magnetic field. The diametrically oriented magnetic fields of the sleeve and prosthetic attachment members may be oriented on the prosthesis and the residual limb to achieve a predetermined rotational orientation between the prosthesis and the residual limb and will facilitate removal of the prosthesis with a twisting action.