Improved catheter
AssigneeShelverton Holdings Pty Ltd
InventorCaroline Luise Shelverton
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Abstract
The present disclosure relates to a catheter for insertion into a vessel of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion towards the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow into and out of the second portion of the body.
Claims24
A catheter for insertion into a vessel of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion to the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow into and out of the second portion of the body, wherein the tip tapers to a narrower distal end and wherein the catheter is a peripheral catheter that is configured to be peripherally inserted into a peripheral vessel of a patient.
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A catheter for insertion into a vessel of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion to the tip portion and defines an at least partially open section of the wall having a plurality of openings arranged to permit outflow of fluid from the body into the vessel such that in use, when the catheter is inserted into the vessel and fluid outflow is at a constant rate, forces acting on the body are such that a spacing is maintained between the body and an internal wall of the vessel.
A catheter assembly, including:
- a) a catheter tube for insertion into a vessel of a patient, the catheter tube having an elongate body extending between a proximal end and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion to the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow into and out of the second portion of the body at multiple positions around a circumference, wherein the tip tapers to a narrower distal end and wherein the catheter is a peripheral catheter that is configured to be peripherally inserted into a vessel of a patient;
- b) a hub attached to the proximal end of the catheter tube;
- and,
- c) an introducer needle inserted through the catheter tube having an edge that projects beyond the distal end of the tube for penetrating a wall of the vessel.
A catheter for insertion into a vessel of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion to the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow out of the second portion of the body, wherein the tip tapers to a narrower distal end, the catheter is a peripheral venous catheter that is configured to be peripherally inserted into a peripheral vein of a patient and wherein the catheter is inserted into the vessel and fluid outflow is at a constant rate, forces acting on the body are such that a spacing is maintained between the body and an internal wall of the vein.
A catheter for insertion into an artery of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion to the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow into the second portion of the body, wherein the tip tapers to a narrower distal end, the catheter is a peripheral arterial catheter that is configured to be peripherally inserted into a peripheral artery of a patient and when the catheter is inserted into the vessel fluid inflow can occur through holes along the second portion.
A catheter for insertion into a vessel of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion towards the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow into and out of the second portion of the body and wherein a ratio of the first length to the second length is approximately in the range 0.5 to 2.
A catheter for insertion into a vessel of a patient, the catheter including an elongate body extending between a proximal end for attachment to a hub and a distal end at a tip portion thereof, the body having a circumferential wall and including a first portion that extends a first length from the proximal end and defines an enclosed section of the wall and a second portion that extends a second length from an end of the first portion towards the tip portion, the second portion defining an at least partially open section of the wall having a plurality of openings arranged to permit fluid flow into and out of the second portion of the body and wherein the circumferential wall defines an inner surface and an outer surface and wherein at least a portion of at least one of the inner and outer surface is textured or roughened so as to reduce biofilm adhesion to the body in use.
Dependencies are inferred from the claim text.