Patents by Inventor Benjamin Andrew Pratt

Benjamin Andrew Pratt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190091451
    Abstract: A reduced pressure treatment system includes a liquid-collection canister for collecting liquid from a tissue site to which reduced pressure treatment is applied. The canister includes a first space configured to collect the liquid from the tissue site and a filter having a frame and a non-planar filter element. The filter defines a second space within the canister separated from the first space by the filter element. The filter element substantially prevents liquid from passing from the first space into the second space. The filter element substantially allows gaseous communication between the first space and the second space when the second space is exposed to a reduced pressure.
    Type: Application
    Filed: November 1, 2018
    Publication date: March 28, 2019
    Inventors: Christopher Brian Locke, Aidan Marcus Tout, Benjamin Andrew Pratt
  • Publication number: 20190091388
    Abstract: A treatment system for applying negative pressure to a tissue site in conjunction with a venting or purging capability. In some embodiments, the treatment system may include a reduced-pressure source, an inline storage pouch, a purge chamber, and a dressing. Reduced-pressure may be supplied to the inline storage pouch and the dressing, while the purge chamber may provide a ventilation opening to the atmosphere.
    Type: Application
    Filed: April 7, 2017
    Publication date: March 28, 2019
    Inventors: Christopher Brian LOCKE, James Killingworth SEDDON, Benjamin Andrew PRATT
  • Publication number: 20190060536
    Abstract: A reduced-pressure system for delivering reduced pressure for medical purposes to a desired site and to receive fluids in one instance includes a reservoir having an interior space operable to contain the fluids. A reduced-pressure delivery conduit is placed in fluid communication with the interior space for delivering the reduced pressure to the desired site. A source conduit and a pressure sensor conduit are placed in fluid communication with the interior space. A pressure sensor is placed in fluid communication with the pressure sensor conduit. A reduced-pressure source is placed in fluid communication with the source conduit. A reduced-pressure control unit is associated with the pressure sensor and the reduced-pressure source and is operable to receive pressure data from the pressure sensor and supply data from the reduced-pressure source and to determine when a reservoir-full/blockage condition exists. Other systems and methods are presented.
    Type: Application
    Filed: October 11, 2018
    Publication date: February 28, 2019
    Inventors: Benjamin Andrew PRATT, Christopher Brian LOCKE, Aidan Marcus TOUT
  • Publication number: 20190046697
    Abstract: Systems and methods for treating a plurality of tissue sites include a multi-port therapy unit. The multi-port therapy unit includes a plurality of patient-side ports each fluidly coupled to a plurality of conduits and a fluid reservoir fluidly coupled to the plurality of ports. A plurality of pressure sensors are associated with the plurality of patient-side ports to determining a pressure associated with each conduit. A controller is operatively coupled to the plurality of pressure sensors to receive treatment pressure data, monitor pressure for each pressure sensor of the plurality of pressure sensors, and signal an alarm condition if the pressure is outside of a pre-selected range. The system includes a reduced-pressure source fluidly coupled to a dressing at each tissue site through the multi-port therapy unit.
    Type: Application
    Filed: September 11, 2018
    Publication date: February 14, 2019
    Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, James A. Luckemeyer, Richard Marvin Kazala, JR., Benjamin Andrew Pratt, Timothy Mark Robinson
  • Publication number: 20190030221
    Abstract: A system or apparatus may include a container configured to collect fluid from a tissue site and regulate negative-pressure from a negative-pressure source. In some embodiments, the container may include a regulator that receives negative pressure directly from an unregulated negative-pressure source, such as a wall-suction outlet. The regulator may regulate down the pressure delivered to a collection chamber in the container, which may in turn be connected to a tissue site.
    Type: Application
    Filed: January 25, 2017
    Publication date: January 31, 2019
    Inventors: Christopher Brian LOCKE, Benjamin Andrew PRATT, Richard Daniel John COULTHARD
  • Publication number: 20190022289
    Abstract: Systems, apparatuses, and methods for instilling fluid to a tissue site in a negative-pressure therapy environment are described. Illustrative embodiments may include a pneumatically-actuated instillation pump that can draw a solution from a solution source during a negative-pressure interval, and instill the solution to a dressing during a venting interval. A pneumatic actuator may be mechanically coupled to a disposable distribution system that can provide a fluid path between the solution source and a distribution component. A bacterial filter may be disposed in the fluid path between the actuator and the distribution component to prevent contamination of the actuator during operation. The distribution system may be separated from the actuator and disposed of after operation, and the actuator may be re-used.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 24, 2019
    Inventors: Benjamin Andrew PRATT, Christopher Brian LOCKE
  • Patent number: 10179196
    Abstract: Wound dressings, systems, and methods are presented for treating a wound on a patient's limb, such as a venous leg ulcer. The dressings, systems, and methods involve creating airflow within the dressing to vaporize and remove liquid. The airflow may begin when the dressing becomes saturated. The dressings may be used to provide compression and reduced pressure to the wound. Other systems, methods, and dressings are presented herein.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: January 15, 2019
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Christopher Brian Locke
  • Publication number: 20180361037
    Abstract: Fluid supply systems and methods for therapeutic fluid delivery systems, including those used for negative pressure wound therapy (NPWT) systems and methods.
    Type: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Inventors: Benjamin Andrew PRATT, Daniel EVANS, Christopher Brian LOCKE, Kenneth Mitchel KNOWLES
  • Patent number: 10149966
    Abstract: A reduced pressure treatment system includes a liquid-collection canister for collecting liquid from a tissue site to which reduced pressure treatment is applied. The canister includes a first space configured to collect the liquid from the tissue site and a filter having a frame and a non-planar filter element. The filter defines a second space within the canister separated from the first space by the filter element. The filter element substantially prevents liquid from passing from the first space into the second space. The filter element substantially allows gaseous communication between the first space and the second space when the second space is exposed to a reduced pressure.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: December 11, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Aidan Marcus Tout, Benjamin Andrew Pratt
  • Publication number: 20180333522
    Abstract: Some illustrative embodiments of a dressing for treating a tissue site may include a fluid hub, a plurality of elongate fluid members, and a separable joint. The plurality of elongate fluid members may be positioned in fluid communication with the fluid hub. Each of the plurality of elongate fluid members may include a proximal end, a distal end, and an elongate side between the proximal end and the distal end. The elongate side of the elongate fluid members may extend longitudinally outward from the fluid hub. The separable joint may be coupled between the elongate side of one of the plurality of elongate fluid members and the elongate side of another of the plurality of elongate fluid members. Other dressings, systems, and methods are disclosed.
    Type: Application
    Filed: January 23, 2016
    Publication date: November 22, 2018
    Inventors: Benjamin Andrew PRATT, Colin John HALL
  • Publication number: 20180311419
    Abstract: Systems, methods, and apparatuses for regulating the delivery of negative-pressure therapy are described. The system includes a negative-pressure source, an energy source, and a switch. The switch can include a first conductor electrically coupled to the negative-pressure source, a second conductor electrically coupled to the energy source, and a diaphragm having a first position electrically coupling the first conductor to the second conductor and a second position separated from the first conductor and the second conductor. The diaphragm is configured to move between the first position and the second position in response to a differential between a control pressure and a therapy pressure.
    Type: Application
    Filed: January 29, 2016
    Publication date: November 1, 2018
    Applicants: KCI Licensing, Inc., KCI Licensing, Inc.
    Inventors: Christopher Brian LOCKE, Benjamin Andrew PRATT
  • Patent number: 10105472
    Abstract: Systems, methods, and apparatuses for providing feedback for reduced-pressure treatment of a tissue site are described. A regulator may include a supply chamber fluidly coupled to the dressing, a control chamber fluidly coupled to the dressing, a charging chamber fluidly coupled to the supply chamber through a port, and a regulator valve operable to control fluid communication through the port based on a pressure differential between the control chamber and a therapy pressure. The feedback system may include one or more mechanical feedback interfaces fluidly coupled to the regulator to provide a signal of at least one of an application of reduced-pressure therapy, a leak condition, a blockage condition, and a canister full condition.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: October 23, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Richard Daniel John Coulthard, Christopher Brian Locke
  • Publication number: 20180280597
    Abstract: Systems, methods, and apparatuses for providing feedback for reduced-pressure therapy are described. A regulator can include a supply chamber fluidly coupled to a dressing, a control chamber fluidly coupled to the dressing, a charging chamber fluidly coupled to the supply chamber through a port, and a regulator valve operable to control fluid communication through the port based on a pressure differential between the control chamber and a target pressure. The feedback system can include a printed circuit board, a pressure sensor and a signal interface communicatively coupled to the printed circuit board. The pressure sensor can be fluidly coupled to the control chamber to determine the pressure in the control chamber. The signal interface can indicate a state of the reduced-pressure therapy. A potential source can be communicatively coupled to the printed circuit board, the pressure sensor, and the indicator.
    Type: Application
    Filed: June 7, 2018
    Publication date: October 4, 2018
    Inventors: Benjamin Andrew PRATT, Christopher Brian LOCKE
  • Publication number: 20180280202
    Abstract: A pressure switch for controlling application of negative pressure to dressing disposed adjacent a tissue site is disclosed. The pressure switch comprises a body having a base, sidewalls extending from the base to an open end, and an inlet coupled to the dressing and forming a passage through the body. The pressure switch further comprises a diaphragm closing the open end of the sidewalls and forming a vacuum chamber with the body, wherein the inlet fluidly couples the vacuum chamber and the dressing. The pressure switch further comprises a valve disposed in the passage and configured to restrict the flow of gas through the passage so that a switch pressure developed in the vacuum chamber as a result of the application of negative pressure to the dressing lags a wound pressure at the tissue site to delay, wherein the diaphragm is adapted to be operatively responsive to the switch pressure to move between a relaxed position and a compressed position as the negative pressure increases and decreases.
    Type: Application
    Filed: November 1, 2016
    Publication date: October 4, 2018
    Applicant: KCI Licensing, Inc.
    Inventors: Benjamin Andrew PRATT, Michael Bernard BEASLEY, Christopher Brian LOCKE, James Killingworth SEDDON
  • Patent number: 10086119
    Abstract: Fluid supply systems and methods for therapeutic fluid delivery systems, including those used for negative pressure wound therapy (NPWT) systems and methods.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 2, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Daniel Evans, Christopher Brian Locke, Kenneth Mitchel Knowles
  • Publication number: 20180235646
    Abstract: In one example embodiment, an apparatus for treating a tissue site may include a contact layer formed from a compressible material. The contact layer may include a plurality of apertures extending at least partially through the contact layer. The contact layer may be configurable such that at least a portion of the apertures include a first plurality of orifices having a diameter in a first diameter range and such that at least a portion of the apertures include a second plurality of orifices having a diameter in a second diameter range. The first diameter range may be from about 2 mm to about 6 mm. The second diameter range may be from about 8 mm to about 15 mm. The apparatus may include a cover configured to form a sealed space including the contact layer and the tissue site.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Christopher Brian LOCKE, Timothy Mark ROBINSON, Diwi L. ALLEN, Prathamesh KHARKAR, Marisa SCHMIDT, Justin RICE, Shannon C. INGRAM, Kenneth R. SMITH, Benjamin Andrew PRATT, Christopher A. CARROLL
  • Publication number: 20180214313
    Abstract: In some embodiments, a dressing assembly may include a dressing bolster, an interface seal, and a base layer. The dressing bolster may include a first side, a second side, and a periphery. The interface seal may be coupled at the periphery of the dressing bolster. The base layer may include a base layer flange configured to be coupled to the dressing and to extend beyond the periphery of the dressing bolster. The dressing assembly may be suitable for treating a tissue site with reduced pressure and for creating an apposition force between a first portion of the tissue site and a second portion of the tissue site. Other systems, apparatus, and methods are disclosed.
    Type: Application
    Filed: August 17, 2016
    Publication date: August 2, 2018
    Inventors: BENJAMIN ANDREW PRATT, Christopher Brian LOCKE, Timothy Mark ROBINSON
  • Publication number: 20180214315
    Abstract: A treatment system for applying negative pressure therapy and fluid instillation treatment to a tissue site, particularly an abdominal tissue site, is disclosed. In some embodiments, the treatment system may include a dressing member, a plurality of fluid removal pathways, a fluid instillation matrix, a drape, a negative-pressure source, and a fluid instillation source. Instillation fluid may be delivered from the fluid instillation source to the tissue site through the fluid instillation matrix, and negative pressure may be communicated and fluid withdrawn from the tissue site through the plurality of fluid removal pathways.
    Type: Application
    Filed: January 23, 2018
    Publication date: August 2, 2018
    Inventors: David Richard MERCER, James Killingworth SEDDON, Braden King-fung LEUNG, Thomas EDWARDS, Colin John HALL, Benjamin Andrew PRATT, Tyler H. SIMMONS
  • Patent number: 10016543
    Abstract: Systems, methods, and apparatuses for providing feedback for reduced-pressure therapy are described. A regulator can include a supply chamber fluidly coupled to a dressing, a control chamber fluidly coupled to the dressing, a charging chamber fluidly coupled to the supply chamber through a port, and a regulator valve operable to control fluid communication through the port based on a pressure differential between the control chamber and a target pressure. The feedback system can include a printed circuit board, a pressure sensor and a signal interface communicatively coupled to the printed circuit board. The pressure sensor can be fluidly coupled to the control chamber to determine the pressure in the control chamber. The signal interface can indicate a state of the reduced-pressure therapy. A potential source can be communicatively coupled to the printed circuit board, the pressure sensor, and the indicator.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 10, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Christopher Brian Locke
  • Publication number: 20180177930
    Abstract: A system and apparatus for treating a tissue site with reduced pressure and collecting fluids from the tissue site is disclosed. The system may include a reduced-pressure source, a pouch in fluid communication with the reduced pressure source, and a dressing in fluid communication with the pouch. The pouch may include a first wall, a second wall having a periphery coupled to the first wall to form an interior, and a third wall extending through the interior to form a first chamber in fluid communication with the dressing and a second chamber in fluid communication with the reduced pressure source. A plurality of filters are positioned in the third wall. The filters permit fluid communication between the first chamber and the second chamber.
    Type: Application
    Filed: February 22, 2018
    Publication date: June 28, 2018
    Inventors: Benjamin Andrew Pratt, Colin John Hall, Christopher Brian Locke, Elliott James Rider, Gareth Stephenson