Catheter, a coupling component for coupling the catheter to tubes, an apparatus including the rectal catheter, and a method of manufacturing the catheter

An assembly comprising a catheter and a coupling component, which catheter is adapted for injection of a liquid into a body cavity, said catheter being coupled to the coupling component adapted to couple to tubes for establishing fluid communication to an injection liquid reservoir,

• said catheter has
• a main body comprising a funnel-shaped part delimited by an annular funnel wall and an elongate tubular catheter part delimited by an annular catheter wall, which funnel-shaped part has a flared part that, via a smooth transition, tapers into a tapering part, which extend into the elongate tubular catheter part,
• the main body accommodates a liquid flow channel, which is adapted to expel the liquid via at least one injection opening in a free end of the elongate tubular catheter part opposite the funnel-shaped part, and
• an expandable fixation member that surrounds an elongate fixation section of the elongate tubular catheter part a distance from the free end of said elongate tubular catheter part, and a fluid flow channel which is adapted to, via at least one delivery opening provided in the elongate fixation section of the elongate tubular catheter part, deliver a fluid to the expandable fixation member,
• wherein the assembly comprises a tube coupling adaptor, the coupling component is a tube connection component being part of the tube coupling adaptor, and which tube coupling adaptor further comprises a catheter connector component and a decoupling component, wherein the catheter connector component is configured to detachably couple with the catheter, wherein at least a lengthwise section of the fluid flow channel concentrically or eccentrically surrounds at least a lengthwise section of the liquid flow channel,
• wherein the liquid flow channel has a first tube connection piece, wherein between the first tube connection piece and the second connection piece tube is an annular gap that provides for at least a part of the fluid flow channel, wherein the fluid flow channel has a second tube connection piece, and wherein none of the first tube connection piece or the second tube connection piece protrude beyond the funnel-shaped part.

An assembly comprising a catheter and a coupling component, which catheter is adapted for injection of a liquid into a body cavity, said catheter being coupled to the coupling component adapted to couple to tubes for establishing fluid communication to an injection liquid reservoir,

• said catheter has
• a main body comprising a funnel-shaped part delimited by an annular funnel wall and an elongate tubular catheter part delimited by an annular catheter wall, which funnel-shaped part has a flared part that, via a smooth transition, tapers into a tapering part, which extend into the elongate tubular catheter part,
• the main body accommodates a liquid flow channel, which is adapted to expel the liquid via at least one injection opening in a free end of the elongate tubular catheter part opposite the funnel-shaped part, and
• an expandable fixation member that surrounds an elongate fixation section of the elongate tubular catheter part a distance from the free end of said elongate tubular catheter part, and a fluid flow channel which is adapted to, via at least one delivery opening provided in the elongate fixation section of the elongate tubular catheter part, deliver a fluid to the expandable fixation member,
• wherein the assembly comprises a tube coupling adaptor, the coupling component is a tube connection component being part of the tube coupling adaptor, and which tube coupling adaptor further comprises a catheter connector component and a decoupling component, wherein the catheter connector component is configured to detachably couple with the catheter, wherein at least a lengthwise section of the fluid flow channel concentrically or eccentrically surrounds at least a lengthwise section of the liquid flow channel,
• wherein the liquid flow channel has a first tube connection piece, wherein between the first tube connection piece and the second connection piece tube is an annular gap that provides for at least a part of the fluid flow channel, wherein the fluid flow channel has a second tube connection piece,
• wherein the coupling component is adapted for coupling
• at least the respective first tube connection piece of the catheter in liquid communication with the injection liquid reservoir via a respective first tube, and
• the second tube connection piece of the catheter in liquid communication with a fluid reservoir via a respective second tube, and
• wherein the fluid reservoir is the injection liquid reservoir.