US 6,981,964 B2
Draining bodily fluids with a stent
Robert F. Rioux, Ashland, Mass. (US); and Christopher R. O'Keefe, Holliston, Mass. (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, Minn. (US)
Filed on May 22, 2001, as Appl. No. 9/862,270.
Prior Publication US 2002/0177902 A1, Nov. 28, 2002
Int. Cl. A61M 29/00 (2006.01)
U.S. Cl. 604—107 13 Claims
OG exemplary drawing
 
1. A stent for use in the body of a patient, comprising:
(a) a first segment locatable on the proximal side of the external sphincter of the patient and including a proximal portion, a distal end, and a lumen extending within the first segment, the proximal portion including at least one opening in communication with the lumen and a multi-winged malecot, the multi-winged malecot comprising two or more wings that are expandable and collapsible, the distal end terminating on the proximal side of the external sphincter when the stent is placed in the body of the patient;
(b) a second segment locatable on the distal side of the external sphincter of the patient and including a proximal end, a distal end, and a lumen extending within the second segment, the proximal end terminating on the distal side of the external sphincter when the stent is placed in the body of the patient; and
(c) a connecting member disposed between the first and second segments and coupling together the first and second segments, the connecting member extending from the distal end of the first segment to the proximal end of the second segment with a smooth transition at the distal and proximal ends, the connecting member being sized to extend through the external sphincter and to allow normal operation of the external sphincter by the patient when the stent is placed in the body of the patient.