US 12,329,623 B2
Artificial urethral sphincter
Pourya Shokri, Tehran (IR)
Filed by BIOMAGTEC, INC., Dover, DE (US)
Filed on Feb. 22, 2021, as Appl. No. 17/181,108.
Claims priority of provisional application 62/980,155, filed on Feb. 22, 2020.
Prior Publication US 2021/0177566 A1, Jun. 17, 2021
Int. Cl. A61F 2/00 (2006.01)
CPC A61F 2/0018 (2013.01) [A61F 2210/009 (2013.01); A61F 2220/0033 (2013.01); A61F 2230/0069 (2013.01); A61F 2250/0007 (2013.01)] 35 Claims
OG exemplary drawing
 
1. An artificial sphincter, comprising:
a cuff member configured to encircle a body lumen of a patient;
an electromotor;
an interconnection between the electromotor and the cuff member, the interconnection including a first cable connected to the electromotor and a second cable connected to the cuff member;
a solenoid in connection with the electromotor;
a hollow cylinder; and
a spring disposed inside the hollow cylinder,
wherein:
the solenoid is configured to provide an induction current for the electromotor,
the electromotor is configured to rotate in a first rotational direction or in a second rotational direction in response to the induction current,
the rotation of the electromotor in the first rotational direction causes, through the first cable, a loosening of the second cable and a decrease in a gripping force applied from the cuff member to the body lumen of the patient,
the rotation of the electromotor in the second rotational direction causes, through the first cable, a tightening of the second cable and an increase in the gripping force applied from the cuff member to the body lumen of the patient,
the hollow cylinder has a first end and a second end;
the spring has a first end attached to the first end of the hollow cylinder,
the spring has a second end attached to the second cable,
the interconnection further comprises a moveable part disposed slidably inside the hollow cylinder,
the first cable is interconnected between the electromotor and the moveable part,
the moveable part is attached to the second end of the spring, and
the rotation of the electromotor in the first rotational direction causes, through the first cable, a motion of the moveable part and the second end of the spring inside the hollow cylinder moving toward the first end of the hollow cylinder, causing the loosening of the second cable and the decrease in the gripping force applied from the cuff member to the body lumen of the patient.