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公开(公告)号：US20180140814A1
公开(公告)日：2018-05-24
申请号：US15874749
申请日：2018-01-18
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Christopher Brian LOCKE
CPC classification number: A61M37/00 , A61F13/00068 , A61M1/0062 , A61M1/0084 , A61M1/0088 , A61M3/022 , A61M3/0258 , A61M3/0283 , A61M35/00 , A61M39/22 , A61M2037/0007 , A61M2039/226 , A61M2205/3334 , A61M2205/3344
Abstract: A system and method for providing fluid to a tissue site is described. The method fluidly couples an instillation therapy system to the tissue site and monitors a pressure supplied to the tissue site by a reduced-pressure source with the instillation therapy system for a time period. The method provides fluid to the tissue site with the instillation therapy system in response to the pressure at the tissue site during the time period. The system includes a pressure sensor fluidly coupled to the tissue site to measure a pressure proximate the tissue site. A valve and a flow meter are fluidly between a fluid reservoir and the tissue site. A controller is communicatively coupled to the pressure sensor and the valve and configured to monitor the pressure at the tissue site and a volume of fluid flow to the tissue and, in response, operate the valve.
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公开(公告)号：US20220152370A1
公开(公告)日：2022-05-19
申请号：US17587395
申请日：2022-01-28
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Christopher Brian LOCKE
Abstract: A system and method for providing fluid to a tissue site is described. The method fluidly couples an instillation therapy system to the tissue site and monitors a pressure supplied to the tissue site by a reduced-pressure source with the instillation therapy system for a time period. The method provides fluid to the tissue site with the instillation therapy system in response to the pressure at the tissue site during the time period. The system includes a pressure sensor fluidly coupled to the tissue site to measure a pressure proximate the tissue site. A valve and a flow meter are fluidly between a fluid reservoir and the tissue site. A controller is communicatively coupled to the pressure sensor and the valve and configured to monitor the pressure at the tissue site and a volume of fluid flow to the tissue and, in response, operate the valve.
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公开(公告)号：US20220001094A1
公开(公告)日：2022-01-06
申请号：US17398671
申请日：2021-08-10
Applicant: KCI Licensing, Inc.
Abstract: New and useful systems, apparatuses, and methods for providing negative-pressure therapy with instillation of topical treatment solutions are described. An apparatus may comprise an exudate container, a solution source, and a pneumatically-actuated instillation regulator. The instillation regulator may be coupled to the exudate container and to the solution source, and negative pressure from a negative-pressure source can actuate the instillation regulator. In some embodiments, a negative-pressure source may be configured for a negative-pressure interval and a venting interval, and the instillation regulator can be configured to draw instillation solution from the solution source during a negative-pressure interval and to instill the solution to a dressing during a venting interval.
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公开(公告)号：US20210154377A1
公开(公告)日：2021-05-27
申请号：US17254654
申请日：2019-03-11
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Christopher Brian LOCKE
IPC: A61M1/00
Abstract: An apparatus for managing fluid buildup in an internal cavity that may allow automated or semi-automated management of fluid at the treatment site. The apparatus may include a drain fluidly coupled to a negative-pressure source and a vent valve. The may further include a control system configured to operate the negative-pressure source to manage fluid buildup at the treatment site. The apparatus may be particularly advantageous for management of fluid buildup in serous cavities, such as pleural effusion or ascites.
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公开(公告)号：US20210128186A1
公开(公告)日：2021-05-06
申请号：US17124138
申请日：2020-12-16
Applicant: KCI Licensing, Inc.
Inventor： 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
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.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20190167861A1
公开(公告)日：2019-06-06
申请号：US16212366
申请日：2018-12-06
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Christopher Brian LOCKE
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.
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公开(公告)号：US20190030221A1
公开(公告)日：2019-01-31
申请号：US16073226
申请日：2017-01-25
Applicant: KCI Licensing, Inc.
IPC: A61M1/00
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.
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公开(公告)号：US20190022289A1
公开(公告)日：2019-01-24
申请号：US16036357
申请日：2018-07-16
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Christopher Brian LOCKE
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.
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公开(公告)号：US20180280597A1
公开(公告)日：2018-10-04
申请号：US16002736
申请日：2018-06-07
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Christopher Brian LOCKE
IPC: A61M1/00 , F16K17/08 , F16K31/385 , G05D16/06
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.
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20.发明申请公开(公告)号：US20180280202A1
公开(公告)日：2018-10-04
申请号：US15766576
申请日：2016-11-01
Applicant: KCI Licensing, Inc.
Inventor： Benjamin Andrew PRATT , Michael Bernard BEASLEY , Christopher Brian LOCKE , James Killingworth SEDDON
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. This pressure switch further comprises a switching element coupled to the diaphragm to turn on the negative pressure in the relaxed position and turn off the negative pressure in the compressed position. In another example, a method for controlling application of negative pressure to dressing disposed adjacent a tissue site using a pressure switch is disclosed. In another example, a system for applying negative pressure to a tissue site using a pressure switch is disclosed.
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