US 11,986,403 B2
Modular adjustable prosthetic volume compensation system
Gary Joseph Ballas, Redmond, WA (US); and Michael Thomas Ballas, Snohomish, WA (US)
Appl. No. 17/422,158
Filed by Gary Joseph Ballas, Redmond, WA (US); and Michael Thomas Ballas, Snohomish, WA (US)
PCT Filed Jan. 23, 2020, PCT No. PCT/US2020/014759
§ 371(c)(1), (2) Date Jul. 9, 2021,
PCT Pub. No. WO2020/154485, PCT Pub. Date Jul. 30, 2020.
Claims priority of provisional application 62/796,731, filed on Jan. 25, 2019.
Prior Publication US 2022/0110768 A1, Apr. 14, 2022
Int. Cl. A61F 2/74 (2006.01); A61F 2/78 (2006.01); A61F 2/80 (2006.01); A61F 2/50 (2006.01)
CPC A61F 2/7843 (2013.01) [A61F 2/748 (2021.08); A61F 2/80 (2013.01); A61F 2002/5083 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A system for adjusting fit of a prosthetic device, the system comprising:
a pump having a bleed actuator, a plunger and a pressure bulb; and
a bladder fluidically coupled to the pump, wherein the bladder lines a posterior section of an interior of the prosthetic device, wherein a volume of the bladder is changeable by a pumping action of the pump, wherein the volume of the bladder at least partially determines a space available inside the prosthetic device, wherein the bleed actuator is configured to decrease the volume of the bladder, wherein the plunger in operation squeezes the pressure bulb of the pump, wherein a barb of the pump is directly connected to a bladder port of the bladder, and wherein the plunger comprises a rotating wheel that rotates when in contact with the pressure bulb.