US 12,239,806 B2
Peritoneal cavity-bladder connecting catheter for ascites drainage
Il Hwan Kim, Busan (KR); Myeong Ju Kang, Busan (KR); Bong Su Park, Busan (KR); Si Hyung Park, Busan (KR); Yu Jin Lee, Busan (KR); Jin Han Park, Busan (KR); Jae Ha Lee, Busan (KR); Kang Min Park, Busan (KR); Seong Cheol Kim, Busan (KR); Jae Seung Jung, Busan (KR); and So Yeong Jung, Busan (KR)
Assigned to INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Gimhae-si (KR)
Appl. No. 17/289,723
Filed by INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Gimhae-si (KR)
PCT Filed Oct. 24, 2019, PCT No. PCT/KR2019/014049
§ 371(c)(1), (2) Date Apr. 28, 2021,
PCT Pub. No. WO2020/091306, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10-2018-0129719 (KR), filed on Oct. 29, 2018.
Prior Publication US 2022/0001156 A1, Jan. 6, 2022
Int. Cl. A61M 27/00 (2006.01); A61M 25/10 (2013.01)
CPC A61M 27/002 (2013.01) [A61M 25/10182 (2013.11); A61M 2027/004 (2013.01); A61M 2210/1017 (2013.01); A61M 2210/1085 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A peritoneal cavity-bladder catheter, configured to be positioned at a bladder wall, the peritoneal cavity-bladder catheter comprising:
a peritoneal cavity part having a plurality of inlets,
wherein the peritoneal cavity part defines a first space on a side of a peritoneal cavity when configured to be positioned at the bladder wall, and wherein the first space is configured to receive ascites flowed through the plurality of inlets;
a bladder part integrally coupled with the peritoneal cavity part,
wherein the bladder part has a plurality of outlets and defines a second space on a side of a bladder when configured to be positioned at the bladder wall which divides the peritoneal cavity part and the bladder part,
and
wherein the plurality of outlets are configured to discharge the ascites from the second space to outside;
a through-hole penetrating both the peritoneal cavity part and the bladder part, and configured to allow a guide wire to pass there-through,
wherein the through-hole is structurally separated from both the first and the second space formed by the peritoneal cavity part and the bladder part, wherein a first end of the through hole on the side of the peritoneal cavity and a distal end of the peritoneal cavity part are configured to be equally distant to the bladder wall, and a second end of the through hole 2 on the side of the bladder and a distal end of the bladder part are configured to be equally distant to the bladder wall, and
wherein both the peritoneal cavity part and the bladder part have a tapered structure from the bladder wall to the respective distal ends of the peritoneal cavity part and the bladder part; and
wherein when taken in a cross-sectional view perpendicular to a longitudinal direction of both the peritoneal cavity part and the bladder part, a diameter of the cross-sectional view consistently decreases towards the respective distal ends from the bladder wall;
a backflow-prevention part interposed between the peritoneal cavity part and the bladder part, and configured to prevent the ascites flowing from the second space back to the first space;
a backflow-prevention-check valve disposed in the through-hole and configured to prevent the ascites from flowing back into the peritoneal cavity part through the through-hole; and
a balloon part positioned on an outer circumferential surface of both the peritoneal cavity part and the bladder part, and configured to elastically support both the peritoneal cavity part and the bladder part.