# US 11,026,793 B2 · Systems and methods for magnetic induction of a penile prosthesis > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,026,793 B2 - Document ID: US11026793B2 - Status: Granted - Kind: B2 - Application number: 16/230,905 - Filed: 2018-12-21 - Published: 2019-05-09 - Granted: 2021-06-08 - Earliest claimed: 2015-11-20 - Assignees: Board of Trustees of Southern Illinois University - Applicants: Board of Trustees of Southern Illinois University - Inventors: Alberto Colombo; Kevin McVary; Brian Le - Web page: https://patentgrep.com/patent/US11026793B2 ## CPC - A61F 2/26: Penis implants - H05B 6/10: Induction heating apparatus, other than furnaces, for specific applications - A61B 5/14551: {for measuring blood gases} - A61L 27/50: Materials characterised by their function or physical properties {, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) ## Abstract Systems and methods for magnetic induction of a penile prosthesis are disclosed. The magnetic induction system includes a wand that has a coil arrangement covered with a thermal and electrical insulator sheath operable to generate an alternating magnetic field. The coil arrangement of the sheath is configured to receive the length of the penile prosthesis therein. The penile prosthesis may be made from a shape memory material such that application of alternating magnetic fields generated by the magnetic induction system induces eddy currents that raise the temperature of the penile prosthesis to a temperature above the austenitic transformation temperature that allows the penile prosthesis to achieve an erect state. ## Claims ### Claim 1 A magnetic induction apparatus for generating heat in a shape memory alloy penile prosthesis, the apparatus comprising: a power source for generating a current; a sheath having a length extending from a first end to a second end and including a bore configured to receive an entire length of the penile prosthesis, the bore extending the length of the sheath; and a coil operatively connected to the power source for receiving the current, wherein the current in the coil generates an alternating magnetic field which induces eddy currents and generates heat in the penile prosthesis to change the penile prosthesis from a flaccid state to a rigid state. ### Claim 2 (depends on 1) The magnetic induction apparatus of claim 1, wherein the coil is selected from the group consisting of a split helical coil, a pancake coil, and a flexible coil. ### Claim 3 (depends on 1) The magnetic induction apparatus of claim 1, wherein the magnetic induction apparatus is configured to heat the penile prosthesis such that the penile prosthesis reaches a critical temperature. ### Claim 4 (depends on 3) The magnetic induction apparatus of claim 3, wherein the critical temperature is between 34° C. to 46° C. ### Claim 5 (depends on 1) The magnetic induction apparatus of claim 1, further comprising a rectifier connected to the power source and a frequency inverter connected to the rectifier. ### Claim 6 (depends on 1) The magnetic induction apparatus of claim 1, wherein the current is selected from a low frequency AC current and an RF current. ### Claim 7 (depends on 1) The magnetic induction apparatus of claim 1, further comprising a thermal and electrical insulation that covers the coil selected from the group consisting of silicon rubber, fiber glass, PTFE, and combinations thereof. ### Claim 8 (depends on 1) The magnetic induction apparatus of claim 1, further comprising a temperature sensor or a power sensor operatively connected to the coil. ### Claim 9 A magnetic induction system comprising: a penile prosthesis comprising a shape memory alloy and having a penile prosthesis length; and a magnetic induction apparatus comprising: a power source for generating a current; a sheath having a length extending from a first end to a second end and including a bore configured to receive the entire length of the penile prosthesis; and a coil operatively connected to the power source for receiving the current, wherein the current in the coil generates an alternating magnetic field which induces eddy currents and generates heat in the shape memory alloy of the penile prosthesis to change the penile prosthesis from a flaccid state to a rigid state. ### Claim 10 (depends on 9) The magnetic induction system of claim 9, wherein the coil is selected from the group consisting of a split helical coil, a pancake coil, and a flexible coil. ### Claim 11 (depends on 9) The magnetic induction system of claim 9, wherein the penile prosthesis further comprises a conductive material selected from the group consisting of gold, silver, graphene, graphite, high conductive non-ferromagnetic materials, and combinations thereof. ### Claim 12 A method for activating a penile prosthesis, the method comprising: providing a penile prosthesis comprising a shape memory alloy and having a penile prosthesis length; providing a magnetic induction apparatus comprising: a power source for generating a current; a sheath having a length extending from a first end to a second end and including a bore configured to receive the entire length of the penile prosthesis, the bore extending the length of the sheath; and a coil operatively connected to the power source for receiving the current; positioning the penile prosthesis within the bore of the sheath; inducing eddy currents in the penile prosthesis using the magnetic induction apparatus; and generating heat in the penile prosthesis to change the penile prosthesis from a flaccid state to a rigid state. ### Claim 13 (depends on 12) The method of claim 12, wherein the magnetic induction apparatus heats the penile prosthesis to a critical temperature ranging from 34° C. to 46° C. ### Claim 14 (depends on 12) The method of claim 12, wherein the current is selected from a low frequency AC current and an RF current.