# US 11,998,461 B2 · Modular prosthetics devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,461 B2 - Document ID: US11998461B2 - Status: Granted - Kind: B2 - Application number: 17/745,382 - Filed: 2022-05-16 - Published: 2022-11-03 - Granted: 2024-06-04 - Earliest claimed: 2017-09-01 - Assignees: University of Florida Research Foundation, Inc. - Applicants: University of Florida Research Foundation, Inc.; Brian P. Bartlett - Inventors: Wallace Gregory Sawyer; Brian P. Bartlett; Derek L. Hood - Web page: https://patentgrep.com/patent/US11998461B2 ## CPC - A61F 2/50: Prostheses not implantable in the body {(closure means for urethra or rectum or for artificial body openings therefor A61F2/0004)} - A61F 2/78: Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps or stockings for the limb stump - A61F 2/54: Artificial arms or hands or parts thereof - A61F 2/582: {Elbow joints} - A61F 2/60: Artificial legs or feet or parts thereof - A61F 2/64: Knee joints - A61F 2/76: Means for assembling, fitting or testing prostheses, e.g. for measuring or balancing - A61F 2002/5003: {having damping means, e.g. shock absorbers} - A61F 2002/5006: {Dampers, e.g. hydraulic damper} - A61F 2002/5033: {for adjusting damping} - A61F 2002/5083: {modular} - A61F 2002/543: {Lower arms or forearms} - A61F 2002/607: {Lower legs} - A61F 2002/7875: {with releasable ratchets or pegs} - A61F 2002/7887: {for connecting limb exoprostheses to the stump bone} - 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) ## Abstract Various examples are provided for modular prosthetic devices and their use. In one example, a device includes a chassis assembly including a joint portion; and an interchangeable module that can be removably attached to the chassis assembly. The interchangeable modules can be configured for use in a wide variety of applications. The interchangeable modules can be quickly exchanged for different activities. ## Claims ### Claim 1 An interchangeable prosthetic module for removable attachment to a prosthetic device, comprising: a first end configured to engage with a mounting base of a chassis assembly of the prosthetic device; and a second end opposite the first end, the second end configured to engage with a joint portion of the chassis assembly, the second end comprising a locking mechanism including a pair of flanges configured to engage with a cavity of the joint portion, where the pair of flanges rest in a disengaged position to facilitate insertion in the cavity and flex outward to engage with the cavity to secure the locking mechanism to the joint portion, wherein the pair of flanges is engaged with the cavity via rotation of a lever. ### Claim 2 (depends on 1) The interchangeable prosthetic module of claim 1, wherein the pair of flanges tilt inward towards each other in the disengaged position to facilitate insertion in the cavity and flex outward to engage with a surface of the cavity. ### Claim 3 (depends on 1) The interchangeable prosthetic module of claim 1, wherein the pair of flanges is engaged with the cavity via the lever and a locking wedge. ### Claim 4 (depends on 3) The interchangeable prosthetic module of claim 3, wherein the lever forces the locking wedge between the pair of flanges when rotated from an extend position to a locked position. ### Claim 5 (depends on 1) The interchangeable prosthetic module of claim 1, wherein the joint portion comprises the lever. ### Claim 6 (depends on 1) The interchangeable prosthetic module of claim 1, wherein the joint portion comprises a rotatable mounting plate including the cavity. ### Claim 7 (depends on 6) The interchangeable prosthetic module of claim 6, wherein the locking mechanism engages the cavity to secure the rotatable mounting plate in a load bearing position. ### Claim 8 An interchangeable prosthetic module for removable attachment to a prosthetic device, comprising: a first end configured to engage with a mounting base of a chassis assembly of the prosthetic device; and a second end opposite the first end, the second end configured to engage with a joint portion of the chassis assembly, the second end comprising a locking mechanism including a pair of flanges configured to engage with a cavity of the joint portion, where the pair of flanges rest in a disengaged position to facilitate insertion in the cavity and flex outward to engage with the cavity to secure the locking mechanism to the joint portion, wherein the interchangeable prosthetic module is secured to the chassis assembly via at least one mating slot and complementary tab. ### Claim 9 (depends on 8) The interchangeable prosthetic module of claim 8, wherein the at least one mating slot comprises a groove configured to secure the interchangeable prosthetic module in the chassis assembly via the complementary tab. ### Claim 10 (depends on 9) The interchangeable prosthetic module of claim 9, wherein the second end of the chassis assembly and the mounting base of the chassis assembly comprise the groove and the complementary tab. ### Claim 11 (depends on 10) The interchangeable prosthetic module of claim 10, wherein the second end of the interchangeable prosthetic module comprises the groove and the mounting base comprises the complementary tab. ### Claim 12 (depends on 10) The interchangeable prosthetic module of claim 10, wherein the mounting base comprises the groove and the second end of the interchangeable prosthetic module comprises the complementary tab. ### Claim 13 (depends on 9) The interchangeable prosthetic module of claim 9, wherein the interchangeable prosthetic module and a structural frame of the chassis assembly comprise mounting ridges and mounting grooves configured to secure the interchangeable prosthetic module in the structural frame. ### Claim 14 (depends on 13) The interchangeable prosthetic module of claim 13, wherein the structural frame comprises the mounting base. ### Claim 15 An interchangeable prosthetic module for removable attachment to a prosthetic device, comprising: a first end configured to engage with a mounting base of a chassis assembly of the prosthetic device; and a second end opposite the first end, the second end configured to engage with a joint portion of the chassis assembly, the second end comprising a locking mechanism including a pair of flanges configured to engage with a cavity of the joint portion, where the pair of flanges rest in a disengaged position to facilitate insertion in the cavity and flex outward to engage with the cavity to secure the locking mechanism to the joint portion, wherein a prosthetic attachment is attached to the chassis assembly via a mounting portion. ### Claim 16 (depends on 15) The interchangeable prosthetic module of claim 15, comprising a damper driven mechanism. ### Claim 17 (depends on 16) The interchangeable prosthetic module of claim 16, wherein the pair of flanges is coupled to the damper driven mechanism. ### Claim 18 (depends on 17) The interchangeable prosthetic module of claim 17, wherein the damper driven mechanism comprises a piston assembly coupled to the pair of flanges. ### Claim 19 (depends on 15) The interchangeable prosthetic module of claim 15, wherein the joint portion is configured to be secured to an osseous implant or prosthetic socket.