FLUID MANAGEMENT SYSTEM

• US 20170000957A1
• Filed: 09/15/2016
• Published: 01/05/2017
• Est. Priority Date: 03/09/2009
• Status: Abandoned Application

• Current Assignee: Thermedx, LLC (Stryker Corporation)
• Original Assignee: Thermedx, LLC (Stryker Corporation)
• Inventors: Carr, Douglas L., Williams, Jeffrey B.
• Application Number:
  US15/266,389
• Publication Number:
  US 20170000957A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61M 1/72 Cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/777 Determination of loss or gain of body fluids due to suction-irrigation, e.g. during surgery
• CPC Class Codes: A61M 1/785 by heat
• CPC Class Codes: A61M 2205/123 with incorporated reservoirs
• CPC Class Codes: A61M 2205/127 with provisions for heating or cooling
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3327 Measuring
• CPC Class Codes: A61M 2205/3334 Measuring or controlling the flow rate
• CPC Class Codes: A61M 2205/3337 Controlling, regulating pressure or flow by means of a valve by-passing a pump
• CPC Class Codes: A61M 2205/3344 Measuring or controlling pressure at the body treatment site
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 2205/3393 by weighing the reservoir
• CPC Class Codes: A61M 2205/368 by electromagnetic radiation, e.g. IR waves
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/583 by visual feedback
• CPC Class Codes: A61M 2205/7536 allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
• CPC Class Codes: A61M 3/0201 Cassettes therefor
• CPC Class Codes: A61M 3/0229 : Devices operating in a closed circuit, i.e. recycling the irrigating fluid
• CPC Class Codes: A61M 3/0258 : by means of electric pumps
• CPC Class Codes: A61M 5/142 : Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/172 : electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: A61M 5/36 : with means for eliminating or preventing injection or infusion of air into body dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; automatic tube cut-off A61M39/281
• CPC Class Codes: A61M 5/365 : Air detectors A61M5/1684 takes precedence; in extracorporeal blood circuits A61M1/3626
• CPC Class Codes: A61M 5/44 : having means for cooling or heating the devices or media
• CPC Class Codes: A61M 5/445 : the media being heated in the reservoir, e.g. warming bloodbags

Abstract

Fluid management system and method of operating a fluid management system which may provide one or more functions associated with suction, irrigation, distention, deficit monitoring, infusion, fluid warming, and the like. The fluid management system may be selectable between pressure control and flow control modes.

Claims

1. A fluid management system comprising:

a pump configured to deliver a fluid from at least one fluid supply container to a body cavity;

a remote pressure sensor configured for placement in or proximate to a body cavity; and

a control system operatively connected to the pump and the remote pressure sensor, the control system receiving from the remote pressure sensor a signal associated with a pressure of the fluid at the location of the remote pressure sensor, and adjusting a speed of the pump to maintain a desired fluid pressure based at least in part upon the signal received from the remote pressure sensor.

2. The fluid management system of claim 1, wherein the control system receives at least one of a pneumatic signal and an electrical signal from the remote pressure sensor.

3. The fluid management system of claim 1, wherein said fluid distends the body cavity.

4. A method for operating a fluid management system, the method comprising:

delivering fluid from a fluid supply container to a body cavity via a tubing set;

sensing a system fluid pressure in the tubing set at a location between the fluid supply container and the body cavity;

sensing a site fluid pressure using a remote pressure sensor disposed in or proximate to a body cavity; and

controlling a pressure of the fluid delivered to the body cavity based at least in part upon at least one of (i) the sensed system fluid pressure and (ii) the sensed site fluid pressure.

5. The method of claim 4, wherein controlling the pressure of the fluid delivered to the body cavity is based at least in part upon both (i) the sensed system fluid pressure and (ii) the sensed site fluid pressure.

6. The method of claim 4, wherein said fluid delivered to the site via the tubing set distends the body cavity.

7. The method of claim 4, wherein the tubing set comprises a disposable tubing set including a pressure relief valve.