Enemata administering device

Claim 2

An enemata administering device comprising: a hollow stem having exit ports at a distal end thereof, an inlet at the proximal end thereof for receiving a fluid, a smooth expandable resilient cylindircal sleeve of substantially constant diameter and substantially constant wall thickness mounted on the exterior surface of said stem near said distal end of said stem, said sleeve being hermetically sealed to said stem at both ends of said sleeve, said sleeve having an unsealed section between said sealed ends, said ends of said sleeve being sealed to said stem a distance apart along said stem substantially less than the unsealed length of said sleeve when said sleeve is deflated, only the proximal end of said sleeve having a reentrant section to take up the resultant extra length of sleeve material, only a portion of said reentrant section being sealed to said stem, a substantial portion of said reentrant section being free to expand away from said stem, said sleeve conforming to said stem when deflated, and means for inflating said sleeve.

Claim 3

The enemata administering device of claim 1 wherein said stem has an aperture therethrough communicating with the interior surface of said sleeve and wherein said means for inflating comprises a conduit located inside said stem in communication with the interior of said sleeve through said aperture.

Claim 4

An enemata administering device comprising: a hollow stem having a forward end adapted to be inserted through the anal canal into a patient''s bowel, said forward end having exit ports therethrough, the back end of said stem adapted for fluid communication with a Fluid source, a smooth expandable, resilient, single wall cylindrical sleeve of substantially constant diameter and substantially constant wall thickness mounted on the exterior surface of said stem near said forward end at a position adapted to being located within the patient''s bowel when said device is in use, said sleeve being hermetically sealed to said stem at both ends of said sleeve, said sleeve having an unsealed section between said sealed ends, said ends of said sleeve being sealed to said stem a distance apart along said stem substantially less than the unsealed length of said sleeve when said sleeve is deflated, only the proximal end of said sleeve having a reentrant section to take up the resultant extra length of sleeve material, only a portion of said reentrant section being sealed to said stem, a substantial portion of said reentrant section being free to expand away from said stem, said sleeve conforming to said stem when deflated, a conduit within said stem communicating at one end with the interior of said sleeve and at the other end with a second fluid source to permit selective inflation and deflation of said sleeve.

Claim 5

An enemata administering device comprising: a hollow stem having a forward end adapted to be inserted through the anal canal into a patient''s bowel, said forward end having exit ports therethrough, the back end of said stem adapted for fluid communication with a Fluid source, a smooth expandable, resilient, single wall cylindrical sleeve of substantially constant diameter and substantially constant wall thickness mounted on the exterior surface of said stem near said forward end at a position adapted to being located within the patient''s bowel when said device is in use, said sleeve being hermetically sealed to said stem at both ends of said sleeve, said sleeve having an unsealed section between said sealed ends, said ends of said sleeve being sealed to said stem a distance apart along said stem substantially less than the unsealed length of said sleeve when said sleeve is deflated, only the proximal end of said sleeve having a reentrant section to take up the resultant extra length of sleeve material, only a portion of said reentrant section being sealed to said stem, a substantial portion of said reentrant section being free to expand away from said stem, said sleeve conforming to said stem when deflated, a conduit within said stem communicating at one end with the interior of said sleeve and at the other end with a second fluid source to permit selective inflation and deflation of said sleeve.

Claim 6

An enemata administering device comprising a hollow stem having a forward end adapted to be inserted through the anal canal into a patient''s bowel, said forward end having exit ports therethrough, the back end of said stem adapted for fluid communication with a fluid source, an expandable, resilient, single wall cylindrical sleeve of substantially constant diameter and substantially constant wall thickness mounted on the exterior surface of said stem near said forward end at a position adapted to being located within the patient''s bowel when said device is in use, both ends of said sleeve being hermetically sealed to said stem a distance apart along said stem substantially less than the length of said sleeve when said sleeve is deflated, said sleeve having a reentrant section adjacent to one end of said sleeve to take up the resultant excess sleeve material, only a portion of said reentrant section being sealed to said stem, a substantial portion of said reentrant section being free to expand away from said stem, said sleeve lying flat on said stem when deflated, a conduit within said stem communicating at one end with the interior of said sleeve and at the other end with a second fluid source to permit selective inflation and deflation of said sleeve, said reentrant section of said sleeve being only at the end of said sleeve furthest from the forward end of said stem during insertion of the device into the patient''s anal canal and at the end of said stem closest to the forward end of said stem during retraction of the device from the patient''s anal canal.

Claim 7

An enemata administering device comprising a hollow stem having a forward end adapted to be inserted through the anal canal into a patient''s bowel, said forward end having exit ports therethrough, the back end of said stem adapted for fluid communication with a fluid source, an expandable, resilient, single wall cylindrical sleeve of substantially constant diameter and substantially constant wall thickness mounted on the exterior surface of said stem near said forward end at a position adapted to being located within the patient''s bowel when said device is in use, both ends of said sleeve being hermetically sealed to said stem a distance apart along said stem substantially less than the length of said sleeve when said sleeve is deflated, said sleeve having a reentrant section adjacent to one end of said sleeve to take up the resultant excess sleeve material, only a portion of said reentrant section being sealed to said stem, a substantial portion of said reentrant section being free to expand away from said stem, said sleeve lying flat on said stem when deflated, a conduit within said stem communicating at one end with the interior of said sleeve and at the other end with a second fluid source to permit selective inflation and deflation of said sleeve, said reentrant section of said sleeve being only at the end of said sleeve furthest from the forward end of said stem during insertion of the device into the patient''s anal canal and at the end of said stem closest to the forward end of said stem during retraction of the device from the patient''s anal canal.