Drainage devices and methods
AssigneeSciMed Life Systems, Inc.
InventorBarry N. Gellman
Life of this patent
Estimating the term…
Abstract
A ureteral drainage stent is designed to be placed in a patient's ureter and extend into a patient's bladder. An elongated tubular segment includes a distal retention structure for placement in the renal cavity, and a proximal retention structure constructed at least partly from a foam material and for placement in a urinary bladder. A central lumen connects at least one opening in the distal retention structure to the foam proximal retention structure. The foam proximal retention structure typically extends along at least a lower part of the ureter, across the ureteral-vesical junction, and into the bladder, to provide drainage through multiple networked channels.
Claims23
A ureteral stent comprising:
- an elongated member defining a lumen extending therethrough;
- a distal retention structure defined by a distal region of the elongated member;
- and
- a foam segment extending from a proximal end of the elongated member, and in fluid communication with the lumen.
A method for draining urine from a kidney, the method comprising the steps of:
- a) providing a ureteral stent comprising:
- an elongated member defining a lumen extending therethrough;
- a distal retention structure defined by a distal region of the elongated member;
- and
- a foam segment extending from a proximal end of the elongated member, and in fluid communication with the lumen;
- and
- b) inserting said ureteral stent into a ureter of a patient.
A method of positioning a ureteral stent within a patient, comprising the steps of:
- a) providing a ureteral stent comprising:
- an elongated member defining a lumen extending therethrough;
- a distal retention structure defined by a distal region of the elongated member;
- and
- a foam segment extending from a proximal end of the elongated member, and in fluid communication with the lumen;
- and
- b) mounting the stent over a guide wire;
- c) locating the ureteral stent within the ureter of a patient utilizing a pusher, wherein a shape of the pusher conforms to a shape of a proximal end of the ureteral stent;
- and
- d) removing the guide wire.
Dependencies are inferred from the claim text.