Computerized tool for designing a positive cast to be used in fabricating a prosthetic limb socket
First Claim
1. A computerized tool for designing a positive cast to be used in fabricating a prosthetic limb socket, the computerized tool comprising:
- a memory for storing dimensions of a representation of a patient'"'"'s residual limb;
a means for obtaining a desired thickness of the socket;
a means for obtaining dimensions of a preform cone;
a memory containing software instructions programmed to calculate the dimensions of a proximate extension to be added to a positive representation of the patient'"'"'s residual limb based upon the dimensions of the representation of the patient'"'"'s residual limb, the dimensions of the preform cone and the desired thickness of the socket; and
a processing circuit, having access to the dimensions of the representation of the patient'"'"'s residual limb, the dimensions of the preform cone and the desired thickness of the socket, for executing the software program.
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Accused Products
Abstract
A system and method for fabricating a thermoplastic prosthetic limb socket from a thermoplastic preform cone involves the steps of: obtaining a digital or physical positive representation of a patient'"'"'s residual limb; determining a desired thickness for the thermoplastic socket; selecting a thermoplastic preform cone; calculating the dimensions of a proximate extension to be added to the proximate end of the digital or physical representation of the patient'"'"'s residual limb based upon the dimensions of the patient'"'"'s residual limb, the dimensions of the preform cone, and the desired thickness of the thermoplastic socket; forming a positive socket mold based upon the combined dimensions of the patient'"'"'s residual limb and the extension; heating the preform cone; and stretching the preform cone over the positive cast. Preferably the method is performed on a CAD tool. The processing unit in the CAD tool has access to the dimensions of the residual limb, the desired thickness of the socket and the dimensions of the preform cone; and is thus able to compute the dimensions of the proximate extension based upon a set of algorithms stored in the form of a software package (or program) accessible and executable by the CAD'"'"'s processing unit.
179 Citations
9 Claims
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1. A computerized tool for designing a positive cast to be used in fabricating a prosthetic limb socket, the computerized tool comprising:
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a memory for storing dimensions of a representation of a patient'"'"'s residual limb; a means for obtaining a desired thickness of the socket; a means for obtaining dimensions of a preform cone; a memory containing software instructions programmed to calculate the dimensions of a proximate extension to be added to a positive representation of the patient'"'"'s residual limb based upon the dimensions of the representation of the patient'"'"'s residual limb, the dimensions of the preform cone and the desired thickness of the socket; and a processing circuit, having access to the dimensions of the representation of the patient'"'"'s residual limb, the dimensions of the preform cone and the desired thickness of the socket, for executing the software program. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A memory device containing software instructions programmed to calculate dimensions of a proximate extension to be added to a positive representation of a patient'"'"'s residual limb, the software instructions being configured to perform the steps of:
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computing a first volume of a portion of a preform cone, having a predetermined thickness, molded over the positive representation of the patient'"'"'s residual limb; subtracting the first volume from an initial volume of the preform cone, to produce a remaining volume of the preform cone; and computing the dimensions of the extension sufficient to mold a remaining portion of the preform cone, having the predetermined thickness, over a circumferential surface of a positive representation of the extension.
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8. A computerized tool for designing a positive cast to be used in fabricating a prosthetic limb socket, the computerized tool comprising:
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a memory containing software instructions programmed to calculate dimensions of a proximal extension to be added to a positive representation of the patient'"'"'s residual limb based upon dimensions of a representation of the patient'"'"'s residual limb, dimensions of a preform cone and a desired thickness of the prosthetic limb socket; and a processing circuit operatively coupled to the memory, having access to the dimensions of the representation of the patient'"'"'s residual limb, the dimensions of the preform cone and the desired thickness of the socket, the processing circuit being configured to execute the software instructions. - View Dependent Claims (9)
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Specification