US 12,357,747 B2
Enema device
Amit Kumar Sharma, New Delhi (IN); Nishith Chasmawala, Surat (IN); John Everett Martin, Gainesville, FL (US); Abhinav Ramani, Herndon, VA (US); and Paul Thomas Hichwa, Mountain View, CA (US)
Assigned to CM Technologies, Inc., San Diego, CA (US)
Appl. No. 17/425,034
Filed by CM Technologies, Inc., San Diego, CA (US)
PCT Filed Jan. 22, 2020, PCT No. PCT/IB2020/050489
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2020/152597, PCT Pub. Date Jul. 30, 2020.
Claims priority of provisional application 62/795,031, filed on Jan. 22, 2019.
Prior Publication US 2022/0118171 A1, Apr. 21, 2022
Int. Cl. A61M 3/02 (2006.01)
CPC A61M 3/0279 (2013.01) [A61M 3/0245 (2013.01); A61M 2205/0238 (2013.01); A61M 2205/3331 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A device for collection of fecal discharge, comprising:
a retaining component configured for deployment within a subject's rectum and having an annular cross-section;
a collection component comprising a flexible sheath defining a receptacle for collection of discharge from a subject's rectum, and an open first end and a second end, wherein the open first end of said collection component is coupled with the retaining component such that the annular cross-section of the retaining component defines a fluid passageway leading into the open first end of the collection component affixed or integrated with said retaining component; and
at least one pressure sensitive fluid flow control component disposed between the retaining component and the second end of the collection component, wherein:
the pressure sensitive fluid flow control component is a pressure actuatable seal that:
prevents fluid flow from the subject's rectum into the collection component, at fluid
pressure less than defecation response pressure; and
permits fluid flow from the subject's rectum into the collection component, at fluid
pressure above defecation response pressure;
the pressure actuatable seal prevents fluid flow out from the subject's rectum into the collection component at fluid pressure less than defecation response pressure by holding together inner surfaces of the collection component;
fluid pressure above defecation response pressure separates the inner surfaces of the collection component and creates a fluid passage that allows fluid flow out from the subject's rectum into the collection component; and
wherein the pressure sensitive fluid flow control component comprises an adherent coating having adhering characteristics and that is applied to one or more regions on the inner surfaces of the collection component, such that:
the adherent coating holds together the inner surfaces of the collection component at fluid pressure below defecation response pressure; and
the adherent coating permits the inner surfaces of the collection component to separate at fluid pressure above defecation response pressure.