Patents by Inventor Edward Hartwell
Edward Hartwell 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).
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Publication number: 20140100538Abstract: Apparatus (130) for use in wound therapy of mammals is described, the apparatus (130) comprising: a dressing covering the wound, the dressing being substantially sealed to prevent ingress of ambient atmospheric air to the wound; aspiration means (132) operably connected to a space between the dressing and the wound by an aspiration conduit (142) sealed to the point of entry between wound and dressing against ingress of ambient atmosphere, said conduit (142) being for aspiration of said wound and for removal of fluid from said space between said wound and said dressing; a waste container (148) for receiving aspirated fluid to be discarded operably connected to said aspiration conduit; and heating means (144) for heating said fluid in order to increase the vapour pressure thereof and to cause evaporation to reduce the volume of the fluid in the waste container (148). In a preferred embodiment of the present invention the waste fluid is also provided with a sparge gas.Type: ApplicationFiled: September 6, 2013Publication date: April 10, 2014Applicant: Smith & Nephew PLCInventor: Edward Hartwell
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Publication number: 20140088528Abstract: Apparatus and a method for the provision of topical negative pressure therapy to a wound site are described, the apparatus comprising: vacuum generating means for generating a negative pressure at said wound site said vacuum generating means being operably connected to a dressing at said wound site by aspiration conduit means; pressure sensing conduit means in fluid communication with said aspiration conduit means at a junction adjacent said dressing; first pressure sensing means between said junction and said vacuum generating means; second pressure sensing means operably associated with said pressure sensing conduit means; diagnostic means in communication with said first and second pressure sensing means; and control means in communication with said diagnostic means for controlling pressure in said aspiration and said pressure sensing conduit means.Type: ApplicationFiled: December 4, 2013Publication date: March 27, 2014Applicant: Smith & Nephew PLCInventor: EDWARD HARTWELL
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Patent number: 8622981Abstract: Apparatus (200) for the application of topical negative pressure therapy to a user of the apparatus (200) is described together with a method for protecting said apparatus (200) when subjected to abnormal stresses, the apparatus (200) comprising a device (202) and a waste canister (204) releasably connected thereto wherein the device (202) and waste canister (204) are connected together by clip means (222), said clip means (222) being subject to failure upon application of abnormal stresses thereby permitting separation of the device (202) and waste canister (204).Type: GrantFiled: June 27, 2008Date of Patent: January 7, 2014Assignee: Smith & Nephew PLCInventors: Edward Hartwell, Carl Saxby
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Patent number: 8617129Abstract: Apparatus and a method for the provision of topical negative pressure therapy to a wound site are described, the apparatus comprising: vacuum generating means for generating a negative pressure at said wound site said vacuum generating means being operably connected to a dressing at said wound site by aspiration conduit means; pressure sensing conduit means in fluid communication with said aspiration conduit means at a junction adjacent said dressing; first pressure sensing means between said junction and said vacuum generating means; second pressure sensing means operably associated with said pressure sensing conduit means; diagnostic means in communication with said first and second pressure sensing means; and control means in communication with said diagnostic means for controlling pressure in said aspiration and said pressure sensing conduit means.Type: GrantFiled: November 11, 2008Date of Patent: December 31, 2013Assignee: Smith & Nephew PLCInventor: Edward Hartwell
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Patent number: 8551061Abstract: Apparatus (130) for use in wound therapy of mammals is described, the apparatus (130) comprising: a dressing covering the wound, the dressing being substantially sealed to prevent ingress of ambient atmospheric air to the wound; aspiration means (132) operably connected to a space between the dressing and the wound by an aspiration conduit (142) sealed to the point of entry between wound and dressing against ingress of ambient atmosphere, said conduit (142) being for aspiration of said wound and for removal of fluid from said space between said wound and said dressing; a waste container (148) for receiving aspirated fluid to be discarded operably connected to said aspiration conduit; and heating means (144) for heating said fluid in order to increase the vapor pressure thereof and to cause evaporation to reduce the volume of the fluid in the waste container (148). In a preferred embodiment of the present invention the waste fluid is also provided with a sparge gas.Type: GrantFiled: June 27, 2008Date of Patent: October 8, 2013Assignee: Smith & Nephew PLCInventor: Edward Hartwell
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Patent number: 8480698Abstract: Liquid jet surgical cutting apparatus (10) and a method of use thereof are described, the apparatus including a fluid reservoir (12) containing a supply of cutting fluid (14), a pump (16) to supply the cutting fluid to a liquid jet surgical cutting instrument, a liquid jet surgical cutting instrument (20), and a drain conduit (22) to receive and drain waste cutting fluid (14) and entrained debris wherein the drain conduit is operably connected to a waste canister (24), the waste canister having a vacuum generator (26) operably connected thereto to apply a vacuum to an interior of the waste canister and to the drain conduit.Type: GrantFiled: November 12, 2008Date of Patent: July 9, 2013Assignee: Smith & Nephew, Inc.Inventor: Edward Hartwell
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Publication number: 20130150813Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.Type: ApplicationFiled: August 17, 2012Publication date: June 13, 2013Applicant: SMITH & NEPHEW PLCInventors: Benjamin Gordon, Jake Turner, Edward Hartwell, Stephen Jacob, Nathan Wrench, Edward Vernon-Harcourt, David Harris
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Publication number: 20130096518Abstract: Many embodiments of wound filling devices and methods of their use in systems for the application of negative pressure therapy are described herein. In one embodiment, a wound filling device comprises: an inflatable bag member having at least one fluid carrying conduit operably connected thereto to inflate/deflate said bag member; a separate textured covering sock member at least partially covering the inflatable bag member. Another embodiment comprises a three-dimensional wound packing member, and may optionally comprise a plurality of such members linked together. Certain embodiments of wound packing members may comprise a porous bag member adapted to be non-adherent to the wound. Yet other embodiments may comprise a non-porous bag member provided with means to connect a fluid supply to the interior.Type: ApplicationFiled: July 10, 2012Publication date: April 18, 2013Applicant: SMITH & NEPHEW PLCInventors: Kristian Hall, Edward Hartwell, Derek Nicolini
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Patent number: 8333744Abstract: Apparatus for the provision of topical negative pressure therapy to a user is described, the apparatus comprising a device and a waste canister connected thereto, the waste 5 canister being operably connected for receiving wound exudate to a wound dressing by an aspiration conduit which is releasably connected to the dressing, wherein the waste canister has a blank connector portion thereon for sealably receiving a disconnected dressing end of the aspiration conduit.Type: GrantFiled: July 18, 2008Date of Patent: December 18, 2012Inventors: Edward Hartwell, Carl Saxby
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Publication number: 20120004631Abstract: A method of making a three-dimensional wound packing member is described, the method comprising the steps of: taking material selected from at least one of the following forms comprising perforated sheet, net, woven, non-woven and knitted material; subjecting the at least one material to at least one forming process selected from the processes comprising rolling into tubes, braiding, knotting and knitting to form a three-dimensional and resilient structural unit member for packing into a wound.Type: ApplicationFiled: November 17, 2008Publication date: January 5, 2012Applicant: Smith & Nephew PlcInventor: Edward Hartwell
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Publication number: 20110251569Abstract: Apparatus and methods for alerting a user of topical negative pressure therapy apparatus to a non-flow condition of aspirant fluid in the apparatus are described, the apparatus comprising: a device having vacuum pump means and a waste canister connected to the device; the waste canister being operably connected to a wound dressing by aspiration conduit means for aspirating fluid from the wound; the aspiration conduit means, the waste canister and the device providing a fluid flow path therethrough and the vacuum pump means providing for fluid flow therethrough; the device having first pressure sensing means at an upstream position between an outlet port for aspirated fluid from said waste canister and said pump means; said waste canister having further provision selected from one of, selectable vent means for admission of ambient air to said waste canister and selectable second pressure sensing means for sensing pressure in said waste canister; and, a control system for receiving signals from said sensors andType: ApplicationFiled: June 27, 2008Publication date: October 13, 2011Applicant: SMITH & NEPHEW PLCInventors: Jake Turner, Edward Hartwell, Stephen Jacob
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Publication number: 20110130730Abstract: Apparatus for the provision of topical negative pressure therapy to a user is described, the apparatus comprising a device and a waste canister connected thereto, the waste 5 canister being operably connected for receiving wound exudate to a wound dressing by an aspiration conduit which is releasably connected to the dressing, wherein the waste canister has a blank connector portion thereon for sealably receiving a disconnected dressing end of the aspiration conduit.Type: ApplicationFiled: July 18, 2008Publication date: June 2, 2011Inventors: Edward Hartwell, Carl Saxby
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Publication number: 20110087176Abstract: An apparatus for cleansing wounds in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing. The cleansing means (which may be a single-phase, e.g. microfiltration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The dressing and a method of treatment using the apparatus.Type: ApplicationFiled: April 1, 2009Publication date: April 14, 2011Applicant: SMITH & NEPHEW PLCInventors: Patrick Blott, Bryan Greener, Edward Hartwell, Tina Walker
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Publication number: 20110087179Abstract: An apparatus for cleansing wounds, in which wound exudate is removed from a wound bed and selectively cleansed and returned to the wound. The cleansing means removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The associated wound dressing and cleansing means are conformable to the wound, and may have irrigant fluid circulated from a reservoir by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing.Type: ApplicationFiled: August 2, 2010Publication date: April 14, 2011Inventors: Patrick Blott, Bryan Greener, Edward Hartwell, Julian Lee-Webb, Derek Nicolini
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Publication number: 20110006520Abstract: A connector for the connection of a plurality of conduits is described, the connector comprising: a male connector portion (10) and a female connector (12) portion; the male connector portion having a plurality of male conduit connection spigot members (26, 28. 30, 34) sealingly engageable with a plurality of female conduit connection socket members in the female connector portion; the spigot members and socket members (152, 154, 156, 158) having conduit receiving means; a conduit clamp member (38) in each of the male and female connector portions; mutual engagement means in the connector portions for holding the male and female connector portions together or for allowing separation of the connector portions, the engagement means being responsive to fluid flow stemming and fluid flow permitting positions of the clamp members.Type: ApplicationFiled: December 18, 2008Publication date: January 13, 2011Applicant: Smith & Nephew PlcInventors: Kristian Hall, Edward Hartwell, Martin Richardson
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Publication number: 20100318069Abstract: A connector (10) for connecting two conduits having a plurality of lumens therethrough is described, the connector for comprising a male connector portion (12) and a female connector portion (14), the male and female connector portions having mutually engageable retention means, the male and female connector portions defining a plurality of flow passages commensurate with those of the conduits to be connected, the male and female connector portions having co-operating male and female fluid flow passage connecting portions wherein axes of fluid flow passages in a connector portion are offset at an entry point from an exit point in that portion.Type: ApplicationFiled: November 18, 2008Publication date: December 16, 2010Applicant: Smith & Nephew PlcInventors: Kristian Hall, Edward Hartwell, Martin Richardson
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Publication number: 20100318039Abstract: A connector for joining ends of two conduits is described, the connector comprising: a male connector portion and a female connector portion, both portions having conduit connection means for the connection of a conduit to each portion; engagement means to hold the male and female connector portions in fluid flow establishing connection when connected together and valve means associated with said female portion.Type: ApplicationFiled: December 1, 2008Publication date: December 16, 2010Applicant: Smith & Nephew PlcInventors: Kristian Hall, Edward Hartwell, Martin Richardson
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Publication number: 20100286489Abstract: A method and apparatus for measuring a volume of a wound are described, the method comprising the steps of: applying a dressing over a wound, the volume of which is to be measured, the dressing including at least a sealing drape over the wound so as to create a sealed wound cavity; creating a vacuum in said wound cavity by vacuum pump means so as to produce a predetermined vacuum in the wound cavity; measuring a volume of air extracted from said wound cavity in producing said predetermined vacuum; and, calculating a volume of said wound.Type: ApplicationFiled: October 7, 2008Publication date: November 11, 2010Applicant: SMITH & NEPHEW PLCInventor: Edward Hartwell
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Patent number: D679404Type: GrantFiled: September 14, 2012Date of Patent: April 2, 2013Assignee: Smith & Nephew, Inc.Inventors: James D. Lattimore, Michael B. Mosholder, Edward Hartwell, Michael Paul Boggs
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Patent number: D692565Type: GrantFiled: June 3, 2010Date of Patent: October 29, 2013Assignee: Smith & Nephew, Inc.Inventors: James D. Lattimore, Michael B. Mosholder, Edward Hartwell, Michael Paul Boggs