SYSTEMS, DEVICES AND METHODS FOR DRAINING AND ANALYZING BODILY FLUIDS

• US 20190321588A1
• Filed: 06/03/2019
• Published: 10/24/2019
• Est. Priority Date: 11/17/2015
• Status: Active Grant

• Current Assignee: Potrero Medical, Inc
• Original Assignee: Potrero Medical, Inc
• Inventors: BURNETT, Daniel R., KEENAN, Rich, SOKOLOV, Dimitri, BOYD, Stephen, WILLIAMS, Martin, VENKATESWARA-RAO, Kondapavulur, ARNEY, Michelle
• Granted Patent: US 11,357,951 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/02055 Simultaneously evaluating both cardiovascular condition and temperature
• CPC Class Codes: A61B 5/036 by means introduced into body tracts A61B5/032 and A61B5/035 take precedence
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/205 Determining bladder or urethral pressure
• CPC Class Codes: A61B 5/208 adapted to determine urine quantity, e.g. flow, volume
• CPC Class Codes: A61B 5/6853 with a balloon
• CPC Class Codes: A61M 1/60 Containers for suction drainage, adapted to be used with an external suction source containers not adapted for subjection to vacuum A61M1/69
• CPC Class Codes: A61M 1/73 comprising sensors or indicators for physical values
• CPC Class Codes: A61M 1/74 Suction control underwater drainage A61M1/61
• CPC Class Codes: A61M 1/742 by changing the size of a vent A61M1/7411 takes precedence
• CPC Class Codes: A61M 1/743 by changing the cross-section of the line, e.g. flow regulating valves A61M1/7413 takes precedence
• 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 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 2202/0496 Urine
• CPC Class Codes: A61M 2210/1021 Abdominal cavity
• CPC Class Codes: A61M 2210/1085 Bladder
• CPC Class Codes: A61M 2230/005 Parameter used as control input for the apparatus
• CPC Class Codes: A61M 25/0017 specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections
• CPC Class Codes: A61M 27/00 : Drainage appliance for wounds or the like , i.e. wound drains, implanted drains negative pressure wound therapy devices A61M1/90; implements for holding wound open A61B17/02 ; middle ear drainage A61F11/202
• CPC Class Codes: A61M 27/002 : Implant devices for drainage of body fluids from one part of the body to another intraocular A61F9/00781; middle ear A61F11/202
• CPC Class Codes: A61M 27/008 : pre-shaped, for use in the urethral or ureteral tract

Abstract

Systems, devices and methods for draining and analyzing bodily fluids are disclosed in which a drainage assembly is configured to prevent negative pressure build-up. The drainage assembly generally includes a catheter which may include a drainage lumen, a reservoir, a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen, and a controller. The venting mechanism may further include a valve which is configured to maintain a closed position, as well as a vent in fluid communication with the valve, where the venting mechanism is configured to inhibit wetting of the vent from fluid within the drainage lumen

Claims

1. A drainage assembly configured to prevent negative pressure build-up, comprising:

an elongate catheter having a first end configured for insertion within a body lumen, the catheter having at least one opening near or at the first end in fluid communication with a catheter lumen defined therethrough;

a drainage lumen in fluid communication with a second end of the catheter;

a reservoir in fluid communication with the drainage lumen;

a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen;

a valve positioned within the venting mechanism and configured to maintain a closed position until a first pressure level within the drainage lumen drops to a second pressure level such that the valve moves to an open position;

a vent positioned in fluid communication with the valve, wherein the venting mechanism is configured to inhibit wetting of the vent from fluid within the drainage lumen; and

a controller in communication with the reservoir, wherein the controller is configured to determine a fluid volume collected within the reservoir.

2. A drainage assembly configured to prevent negative pressure build-up, comprising:

an elongate catheter having a first end configured for insertion within a body lumen, the catheter having at least one opening near or at the first end in fluid communication with a catheter lumen defined therethrough;

a drainage lumen in fluid communication with a second end of the catheter;

a positive pressure lumen in fluid communication with the drainage lumen;

a reservoir in fluid communication with the drainage lumen;

a venting mechanism coupled to the drainage lumen, wherein the venting mechanism is configured to inhibit wetting of a vent from a fluid within the drainage lumen;

a controller in communication with the reservoir, wherein the controller is configured to determine a fluid volume collected within the reservoir; and

a valve configurable between a closed position and an open position, wherein the valve moves from the closed position to the open position when a first pressure level imparted upon the valve drops to a second pressure level.