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US 12,672,848 B2Granted
Dialysis catheters with integrated fluid status sensing and related systems and methods
AssigneeFoundry Innovation & Research 1, Ltd.
InventorFiachra Sweeney
Life of this patent
Estimating the term…
Abstract
A dialysis catheter with an elongate body has a distal end defining blood removal and return ports communicating with internal blood removal and return lumens extending through the elongate body. A sensing pathway is disposed in or on the elongate body. A vascular dimension sensor is provided to dynamically measure changes in dimension of the SVC or IVC during dialysis. The sensor communicates with a control system and may be controlled or positioned via the communication pathway of the catheter body. Systems disclosed included integrated closed-loop treatment based on monitored vascular dimension input. Methods included patient optimized treatments incorporating treatment modulation based on dynamic vascular dimension monitoring.
Claims12
A dialysis catheter system, comprising:
- an elongate body with a proximal end configured to be manipulated outside a patient's body and a distal end configured to extend into the patient's vasculature, the distal end defining blood removal and return ports communicating with internal blood removal and return lumens extending through the elongate body to the proximal end;
- a sensing pathway disposed in or on the elongate body;
- a sensor configured to dynamically measure changes in a diameter or area of the vessel, the sensor supported by the elongate body so as to be positioned in the SVC or IVC with the distal end blood removal and return ports positioned at a treatment location in the patient's vasculature, wherein the sensing pathway is configured to provide communication between the sensor and the proximal end of the elongate body;
- a dialyzer communicating with the blood removal and return lumens;
- at least one pressure gauge and at least one pump to control blood flow through the dialyzer;
- and
- at least one processor and memory containing instructions for control of the dialyzer based on signals from the sensor received through the sensing pathway, and wherein the at least one processor communicates with the at least one pressure gauge and at least one pump to control a rate of dialysis treatment delivered by the dialyzer;
- and
- one or more anchor means for anchoring at least one of the distal end of the elongate body or the sensor at a desired location in the SVC or IVC, the anchor means comprising a catheter hub at the proximal end of the elongate body configured to be positioned outside the patient's body and fixed relative to the patient's body, and a predetermined length and stiffness of the elongate body configured and dimensioned to position and maintain the distal end at the desired location in the SVC or IVC with the catheter hub.
6 more elements
A diagnostic and dialysis catheter system, comprising:
- a dialysis catheter comprising:
- an elongate body with a proximal end configured to be manipulated outside a patient's body and a distal end configured to extend into the patient's vasculature, the distal end defining blood removal and return ports communicating with internal blood removal and return lumens extending through the elongate body to the proximal end,
- a sensing pathway disposed in or on the elongate body,
- a sensor configured to dynamically measure changes in a diameter or area of the vessel, the sensor supported by the elongate body so as to be positioned in the SVC or IVC with the distal end blood removal and return ports positioned at a treatment location in the patient's vasculature, wherein the sensing pathway is configured to provide communication between the sensor and the proximal end of the elongate body,
- a catheter hub disposed at the proximal end of the elongate body, the catheter hub configured to provide connection and communication for the blood removal and return lumens and the sensing pathway with a therapy system, and
- a sheath hub disposed at the proximal end of the retractable deployment sheath, the sheath hub configured for actuation and manipulation of said sheath;
- a system-side connector configured to mate with the catheter hub to form a hub assembly and provide fluid and electronic communication with the dialysis catheter;
- a dialyzer communicating with the blood removal and return lumens through the hub assembly and at least one pressure gauge and pump to control blood flow through the dialyzer;
- and
- at least one processor and memory containing instructions for control of the dialyzer based on signals from the sensor received through the sensing pathway and hub assembly indicative of patient fluid volume state, and wherein the at least one processor communicates with the at least one pressure gauge and pump to control a rate of dialysis treatment delivered by the system.
7 more elements
Dependencies are inferred from the claim text.