Abstract:
The present invention relates to joint simulators, and in particular, to methods and systems for controlling joint simulators by using a haptic mapping technique. A joint simulator is used to closely approximate the conditions within the body, particularly with respect to human and animal joints, and can be used to test and evaluate prosthetics for use in various parts of a human or animal body. The haptic mapping technique improves the rate of convergence of the actual testing forces to the prescribed forces during repetitive performance and life testing. The method is used in conjunction with an impedance-mode servo controller.
Abstract:
The present invention relates to a system (100, 200) for neuromuscular rehabilitation of a patient (102, 202) having an affected limb (104, 204) comprising: a feedback member arranged to give real-time visual feedback; a plurality of electrodes (110, 210) arranged to acquire an electric signal corresponding to an intent to move said affected limb (104, 204); a control unit (108, 208) configured to: perform pattern recognition of said electric signals, wherein at least one feature in said electric signal is used to predict motion intent of said affected limb (104, 204) adjacent to at least one joint, such aggregated motions of said affected limb (104, 204) are predicted; based on output signals from said performed pattern recognition, control said feedback member to perform actions corresponding to said motions, whereby said actions of said feedback member are individually and simultaneously controlled by said patient (102, 202) via said intended motions.
Abstract:
A robotic prosthesis alignment device is disclosed that may automatically move the alignment of a prosthesis socket in relation to a prosthesis shank. The robotic prosthesis alignment device provides automatic translation in two axes. The robotic prosthesis alignment device includes angulation mechanics that automatically provide for plantarflexion, dorsiflexion, inversion, and eversion of the foot and shank with respect to the prosthesis socket. A surrogate device is also disclosed that can replicate the alignment achieved with the robotic prosthesis alignment device.
Abstract:
Systems and methods are disclosed for sensing forces, moments, temperature, inclination, acceleration and other parameters associated with prosthetic limbs. The system is capable of measuring forces in three designated axes, and moments about the same designated axes, for a total of six possible degrees of freedom. The system can be readily fitted onto a conventional prosthetic limb with no, or relatively minor, modification thereto. A plurality of sensor arrays are disposed on a support member, each array including a plurality of strain gauge sensors, each sensor outputting an electrical signal responsive to loading imposed on the support member through the prosthetic limb. Electronic circuitry in communication with the gauges is operative to receive the electrical signals from the strain gauges and provide a signal useful in the form, fit or function of the prosthetic limb.
Abstract:
A computerized prosthesis alignment system includes a transducer that can measure socket reactions in the anterior/posterior plane and the right/left planes, while canceling or reducing the transverse forces on the measurements of these socket reactions. In addition, the transducer is also capable of determining the axial load or weight experienced by the prosthesis. The computerized prosthesis alignment system is in communication with a host computer. The moment data from the transducer is interpreted by the user via a computer interface. The host computer includes memory for storing one or more applications. These applications receive data from the transducer, interpret the data with discrete algebraic or fuzzy logic algorithms, and display the output numerically and graphically. Applications may also interpret the data to provide analyses to the user for aligning the prosthesis.
Abstract:
A temporary diagnostic prosthetic socket mounting system and kit including a generally circular test mounting block defined by an annular groove and four axial cutouts extending from the lower surface of the block to the upper surface. The axial cutouts are at least as deep as the annular groove. A band extending around the perimeter of the block is provided which spans the axial cutouts, thereby forming a void in the cutouts beneath the tape. The block is secured to a prosthetic diagnostic socket by adhesive with the band extending up over the upper edge of the block and onto the outer surface of the socket. Casting tape is applied over the socket/block joint extending into the groove. After diagnostic fitting and transfer of the alignment, a cast saw can be passed around the joint through the casting tape and into the adhesive between the upper surface of the block and the rounded distal end of the socket. The gap behind the band in the cutouts provides a void space for the saw that avoids damage to the block, and the casting tape is severed and easily removed.
Abstract:
Systems and method for monitoring gait dynamics are disclosed. The performance of an orthotic or prosthetic device or other device associated with a limb may be measured based on the resistance of a bending sensor. Data from the sensors is gathered or processed, particularly for purposes of alignment, safety, failure, usage, selection, and artificial proprioception. Information relating to the device may be outputted visually or auditorily to an individual.
Abstract:
A computerized prosthesis alignment system includes a transducer that can measure socket reactions in the anterior/posterior plane and the right/left planes, while canceling or reducing the transverse forces on the measurements of these socket reactions. In addition, the transducer is also capable of determining the axial load or weight experienced by the prosthesis. The computerized prosthesis alignment system is in communication with a host computer. The moment data from the transducer is interpreted by the user via a computer interface. The host computer includes memory for storing one or more applications. These applications receive data from the transducer, interpret the data with discrete algebraic or fuzzy logic algorithms, and display the output numerically and graphically. Applications may also interpret the data to provide analyses to the user for aligning the prosthesis.
Abstract:
The invention relates to a device and a method for producing a orthopaedic aid. In order to precisely adapt an orthopaedic aid, it is necessary, on the body part intended to correspond to the orthopaedic aid, to take into account, during preparation of the orthopaedic aid, the displacements of muscle and other tissue that occur when the finished aid is used under loading. To avoid the hitherto lengthy adaptation procedure, a device is proposed that has a plurality of interconnected shaped parts connected to a main frame via holders that can be fixed in their position. By means of these shaped parts, it is possible to generate a spatial supporting surface and to alter it as required in order to support a body part with realistic loading an accordingly realistic tissue displacement. The resulting shape can be utilized to produce a corresponding orthopaedic aid.
Abstract:
An apparatus for restoring the alignment of the support socket with other structural components during the fabrication of a leg prosthesis comprising a stand with base, a means to secure the lower aspect of the leg prosthesis to the stand base, and a laser source attached to the top of the stand that emits visible cross-beams downward onto the leg prosthesis when the prosthesis is mounted on the stand base. The method of the invention uses the described apparatus with leg prosthesis mounted thereon to mark points on the inside of a check or test socket that coincide with the laser cross-beams; transferring these marks from the check socket to the permanent support socket; and re-aligning the permanent support socket with the lower aspect prosthetic components by mounting the leg prosthesis with permanent support socket on the alignment apparatus and matching the marks to the laser cross-beams. A removable base plate allows for a number of leg prostheses to be fabricated concurrently, using the same alignment apparatus. The method and apparatus of the present invention reduces the time and expense of orthotic fabrication while increasing the accuracy of alignment of the finished prosthetic product.