Artificial sphincter
First Claim
1. An artificial sphincter for closure of a channel in a patient'"'"'s body communicating with an opening adjacent the outside of the patient'"'"'s body, comprising:
- a generally annular member containing a first material for placement at least partially around the channel of the patient'"'"'s body;
a plug having elongated flexible sidewalls of an elastic material for placement within said annular member in the body channel with the plug sidewalls flexing toward walls of said channel in a closure position of the plug, said plug containing a particulate second material positioned in a region within the annular member when said plug is located in said closure position, at least one of said first and second materials comprising a permanent magnetic material, and the other of said first and second materials comprising a material substantially susceptible to said one magnetic material; and
applicator means for selectively placing said plug in said closure position and for selectively removing the plug from the body channel comprising means for modifying the transverse dimensions of the plug sidewalls relative to the body channel.
1 Assignment
0 Petitions
Accused Products
Abstract
An artificial sphincter for closure of a channel in a patient'"'"'s body communicating with an opening adjacent the outside of the patient'"'"'s body. The sphincter comprises, a generally annular member containing a first material for placement around the channel of the patient'"'"'s body, and a plug having elongated flexible sidewalls of an elastic material for placement within the annular member in the body channel. The plug contains a particulate second material positioned in a region within the annular member when the plug is located in the patient'"'"'s body. At least one of the first and second materials comprises a permanent magnetic material, while the other of the first and second materials comprises a material substantially susceptible to the one magnetic material. The sphincter has an applicator for selective placement and removal of the plug relative the channel in the patient'"'"'s body.
154 Citations
36 Claims
-
1. An artificial sphincter for closure of a channel in a patient'"'"'s body communicating with an opening adjacent the outside of the patient'"'"'s body, comprising:
-
a generally annular member containing a first material for placement at least partially around the channel of the patient'"'"'s body; a plug having elongated flexible sidewalls of an elastic material for placement within said annular member in the body channel with the plug sidewalls flexing toward walls of said channel in a closure position of the plug, said plug containing a particulate second material positioned in a region within the annular member when said plug is located in said closure position, at least one of said first and second materials comprising a permanent magnetic material, and the other of said first and second materials comprising a material substantially susceptible to said one magnetic material; and applicator means for selectively placing said plug in said closure position and for selectively removing the plug from the body channel comprising means for modifying the transverse dimensions of the plug sidewalls relative to the body channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. An artificial sphincter for closure of a channel in a patient'"'"'s body communicating with an opening adjacent the outside of the patient'"'"'s body, comprising:
-
a generally annular member containing a first material for placement at least partially around the channel of the patient'"'"'s body; a plug of elastic material having an elongated flexible annular outer wall for facing walls of the body channel, a closed distal end, and an annular inner wall defining an elongated central passageway extending between an opening adjacent a proximal end of the plug and said distal end, said inner and outer walls at least partially defining an elongated chamber in the plug having a length greater than the length of said annular member, said plug containing a fluid and a particulate second material in said chamber, with at least one of said first and second materials comprising a permanent magnetic material, and with the other of said first and second materials comprising a material substantially susceptible to said one magnetic material, said first and second materials causing flexation of said outer wall toward the walls of the body channel in a first closure configuration of the plug; and applicator means for selective placement and removal of the plug comprising means for placing the outer wall of the plug in a second configuration with said outer wall in reduced transverse dimensions relative to the walls of said channel. - View Dependent Claims (28, 29, 30, 31, 32)
-
-
33. An artificial sphincter for closure of a channel in a patient'"'"'s body communicating with an opening adjacent the outside of the patient'"'"'s body, comprising:
-
a generally annular member containing a first material for placement at least partially around the channel of the patient'"'"'s body; a plug of elastic material having a flexible annular outer wall for facing walls of the body channel, a closed distal end, and a chamber with a length greater than the length of said annular member, and valve means communicating with said chamber; and pump means for selectively filling the chamber through the valve means with a medium and for selectively withdrawing the medium from the chamber, said medium comprising a liquid and a particulate second material, with at least one of said first and second materials comprising a permanent magnetic material, and with the other of said first and second materials comprising a material substantially susceptible to said one magnetic material.
-
-
34. An artificial sphincter for closure of a channel in a patient'"'"'s body communicating with an opening adjacent the outside of the patient'"'"'s body, comprising:
-
a generally annular member containing a first material for placement at least partially around the channel of the patient'"'"'s body; a plug of elastic material having an elongated outer wall for facing the walls of the body channel, said outer wall having a length greater than the length of said annular member and defining a central passageway communicating with an opening adjacent a proximal end of the plug, said plug having a distal wall extending from said outer wall and closing a distal end of the passageway, and a particulate second material dispersed in a region of said outer wall having a length greater than the length of said annular member, at least one of said first and second materials comprising a permanent magnetic material, and the other of said first and second materials comprising a material substantially susceptible to said one magnetic material; and applicator means for reducing the transverse dimensions of the outer wall to permit placement and removal of said plug. - View Dependent Claims (35, 36)
-
Specification