WO2019211732A1 - Évent d'échappement pour un système de thérapie de plaie par pression négative - Google Patents

Évent d'échappement pour un système de thérapie de plaie par pression négative Download PDF

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Publication number
WO2019211732A1
WO2019211732A1 PCT/IB2019/053509 IB2019053509W WO2019211732A1 WO 2019211732 A1 WO2019211732 A1 WO 2019211732A1 IB 2019053509 W IB2019053509 W IB 2019053509W WO 2019211732 A1 WO2019211732 A1 WO 2019211732A1
Authority
WO
WIPO (PCT)
Prior art keywords
canister
pump assembly
exhaust
negative pressure
pump
Prior art date
Application number
PCT/IB2019/053509
Other languages
English (en)
Inventor
Iain Michael Blackburn
Simon Francis Brereton
Tomas Alexander Ogg CORREA
Frederick Jethro HARRISON
Camilo Patrick MADRIZ
Robert SIMMONDS
Nicholas WARRINGTON
Original Assignee
Smith & Nephew Pte. Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith & Nephew Pte. Limited filed Critical Smith & Nephew Pte. Limited
Publication of WO2019211732A1 publication Critical patent/WO2019211732A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/80—Suction pumps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A61M1/98—Containers specifically adapted for negative pressure wound therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/42—Reducing noise
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2206/00—Characteristics of a physical parameter; associated device therefor
    • A61M2206/10—Flow characteristics
    • A61M2206/11—Laminar flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/084—Supporting bases, stands for equipment
    • A61M2209/086—Docking stations

Definitions

  • Embodiments or arrangements disclosed herein relate to methods and apparatuses for dressing and treating a wound with topical negative pressure (TNP) therapy.
  • TNP topical negative pressure
  • any embodiments disclosed herein may relate to treating a wound with reduced pressure provided from a pump kit.
  • TNP therapy sometimes referred to as vacuum assisted closure, negative pressure wound therapy, or reduced pressure wound therapy, is widely recognized as a beneficial mechanism for improving the healing rate of a wound.
  • Such therapy is applicable to a broad range of wounds such as incisional wounds, open wounds and abdominal wounds or the like.
  • TNP therapy assists in the closure and healing of wounds by reducing tissue edema; encouraging blood flow; stimulating the formation of granulation tissue; removing excess exudates, and may reduce bacterial load and thus reduce the potential for infection of the wound. Furthermore, TNP therapy permits less outside disturbance of the wound and promotes more rapid healing.
  • Embodiments of the present disclosure relate to apparatuses and methods for wound treatment.
  • Some of the wound treatment apparatuses described herein comprise a pump system or assembly for providing negative pressure to a wound site.
  • Wound treatment apparatuses may also comprise wound dressings that may be used in combination with the pump assemblies described herein, and connectors for connecting the wound dressings to the pump assemblies.
  • a negative pressure wound therapy apparatus is disclosed.
  • the negative pressure wound therapy apparatus comprises a pump assembly comprising a negative pressure source that is configured to provide, via a fluid flow path, negative pressure to a wound.
  • the pump assembly may be releasably connectable to a canister configured to store fluid aspirated from the wound.
  • the canister may be fluidically connected to a connector port on the pump assembly that is in fluid communication with an inlet of the negative pressure source such that the negative pressure source provides negative pressure to the wound through a fluid flow path that passes through the canister.
  • the canister may be fluidically connected to a wound dressing positioned over the wound.
  • the negative pressure source may also be configured to provide negative pressure to a wound dressing positioned over the wound without a canister between the wound dressing and the inlet of the negative pressure source.
  • the negative pressure source can be enclosed within a casing of the pump assembly.
  • the pump assembly is adapted to vent the exhaust of the negative pressure source outside of the casing of the pump assembly.
  • the exhaust of the negative pressure source is routed through an exhaust vent that opens to the air space outside of the casing of the pump assembly.
  • the exhaust vent can be arranged to reduce or eliminate the exhaust of the negative pressure source from disrupting a user of the pump assembly.
  • the exhaust vent is adapted to direct the exhaust stream toward a bottom or base surface of the pump assembly so that the air current of the exhaust stream is not felt by a user of the pump.
  • the exhaust vent is positioned on a canister-facing surface of the pump assembly such that when the pump assembly and canister are releasbly connected, the exhaust vent is covered by a pump-facing surface of the canister.
  • the exhaust vent is arranged to minimize moisture accumulation in the exhaust piping that directs the exhaust from the negative pressure source to the air space outside of the pump casing.
  • the shape of the exhaust vent is adapted to minimize the sound produced by the negative pressure source or the exhaust being emitted therefrom.
  • a negative pressure wound therapy apparatus may comprise a pump assembly and a canister configured to be releasably connected to the pump assembly.
  • the pump assembly comprises a negative pressure source enclosed within a casing, wherein the negative pressure source is configured to exhaust fluid to outside of the casing through an exhaust vent.
  • a canister-facing surface of the casing is at least partially covered by a pump-facing surface of the canister.
  • the exhaust vent comprises an exhaust feed opening into a recessed channel on the canister-facing surface of the casing.
  • the recessed channel may extend from the exhaust feed to a side surface of the casing.
  • the recessed channel may have a proximal portion including the exhaust feed and a distal portion extending away from the exhaust feed to the side surface of the casing.
  • the proximal portion has a smaller width than that of the distal portion.
  • the pump assembly may comprise a pump inlet on a front side of the casing, wherein the exhaust vent is located on a back side of the casing.
  • the canister facing surface of the casing and the pump-facing surface of the canister are substantially flat.
  • the recessed channel has a planar shape.
  • Figure 1 illustrates an embodiment of a reduced pressure wound therapy system having a pump assembly assembled with a canister.
  • Figure 2 illustrates the reduced pressure wound therapy system of Figure 1 with the pump assembly disengaged from the canister.
  • Figure 3 is a bottom perspective view the pump assembly of Figure 2.
  • Figure 4 is a side perspective view the pump assembly of Figure 3 with the top housing removed to show the internal components of the pump assembly.
  • Figure 5 is a backside view of the pump assembly of Figure 4.
  • Figure 6 is a top view of the negative pressure source and bottom housing of the pump assembly of Figure 5.
  • Figure 7 is a side cross-sectional view of the bottom housing of Figure 6.
  • Figure 8 is a bottom view of the bottom housing of Figure 5.
  • Figure 9 is backside perspective view of the bottom of the housing of Figure 8.
  • FIG. 1 illustrates an embodiment of a negative or reduced pressure wound treatment (or TNP) system 100 comprising a pump assembly 150 and a canister 160.
  • the pump assembly 150 can be releasably connected to the canister
  • the pump assembly 150 When connected to the canister 160, the pump assembly 150 can be adapted to create a negative pressure within the canister 160 to draw wound exudate from a wound into the canister 160.
  • the wound exudate can be drawn into the canister 160 through a canister inlet
  • the canister inlet 161 can be connected to the wound by a flow path (e.g., tubing) that extends from the canister inlet 161 to a wound dressing (not shown) positioned over a wound.
  • the pump assembly 150 can be disconnected from the canister 160 and can operate in a cansiterless mode in which the pump assembly draws wound exudate into an absorbent dressing positioned over the wound and in fluid communication with the pump assembly 150 without having a separate canister positioned there between.
  • the pump assembly 150 can include a strap anchor 159. The pump assembly 150 can be suspended from a strap (not shown) attached to the strap anchor 159, for example, when the pump assembly is utilized without the canister 160.
  • FIG. 2 shows the pump assembly 150 slid back to disengage the pump assembly 150 from the canister 160.
  • the pump assembly 150 can include a pump connector 152 located at a front or forward side of the pump assembly.
  • the pump connector 152 can be adapted to form a fluidic connection with a canister connector 162.
  • the pump connector 152 can also be adapted to form a fluidic seal with a connector that is coupled directly to an absorbent wound dressing (not shown), allowing the TNP system 100 to operate in a canister or canisterless mode.
  • the pump assembly 150 creates a negative pressure within the canister 160 by drawing air out of the canister 160 through the canister connector 162 and into the pump assembly 150 through the pump connector 152. As described below, the pump assembly 150 vents to the air space surrounding the pump assembly 150 the air that has been drawn from the canister 160.
  • Figure 3 is a bottom view of the pump assembly 150.
  • a lower surface of the pump assembly has flat or substantially flat portions so that the pump assembly can be placed on a flat surface such as a table.
  • the pump assembly 150 can have an exhaust vent 170 provided on the lower surface of the pump assembly.
  • the exhaust vent 170 can be adapted to provide a flow path for a negative pressure source (e.g., pump) within the casing of the pump assembly 150 to vent the pump exhaust outside of the casing of the pump assembly 150, as described more fully below.
  • the casing of the pump assembly 150 can have an upper housing 182 and a lower housing 184. As shown in Figure 2, when the pump assembly 150 is assembled onto the canister 160, the lower housing 184 is disposed between the upper housing 182 and the canister 160.
  • the exhaust vent 170 can include a channel 172 that is recessed relative to the surrounding portions of the bottom surface of the lower housing 184.
  • the exhaust vent 170 has an exhaust feed 174 that opens downward to the channel 172.
  • the exhaust feed 174 conducts pump exhaust from inside the pump casing to the channel 172.
  • the channel 172 can extend from the exhaust feed 174 rearwardly to a backside surface 153 of the pump assembly 150, providing a flow path for pump exhaust to flow from the exhaust feed 174 to the airspace that surrounds the pump assembly 150.
  • the pump assembly 150 can include one or more housing anchors 155 that secure together the upper housing 182 and the lower housing 184.
  • the pump assembly 150 can have a housing anchor 155 disposed in the channel 172 of the exhaust vent 170. In some arrangements, the pump assembly 150 does not have a housing anchor 155 disposed in the channel 172.
  • Figure 4 is a side view of the pump assembly 150 with the upper housing 182 disassembled from the lower housing 184 in order to show the internal components of the pump assembly 150.
  • the pump assembly 150 can have a negative pressure source 190 that is fluidically connected to the pump connector 152.
  • the negative pressure source 190 can draw air through the connector 152 and into the negative pressure source 190.
  • the pump assembly 150 can be arranged so that the negative pressure source 190 vents to the airspace outside of the casing of the pump assembly 150. In some embodiments, the pump assembly 150 is arranged so that the negative pressure source 190 does not release any pump exhaust into the internal space of the pump assembly 150, i.e., the space enclosed by upper housing 182 and lower housing 184 when the pump assembly 150 is assembled.
  • Figure 5 is a backside view of the pump assembly 150, i.e., a view of the surface that is opposite of the pump connector 152 (shown in Figure 2), when the pump assembly is releasably connected to the canister 160.
  • the pump assembly 150 and the canister 160 can form a seam 165 between one another when the pump assembly 150 is mounted onto the canister 160.
  • the exhaust vent 170 is located on a canister facing surface of the pump assembly, such that a pump-facing surface of the canister 160 at least partially covers the exhaust vent 170.
  • the pump-facing surface of the canister 160 that at least partially covers the exhaust vent 170 is preferably flat, thereby giving the channel 172 a planar shape with a flat lower surface when the pump assembly 150 is connected to the canister 160.
  • the channel 172 will have a similar planar shape with a flat lower surface.
  • the exhaust vent 170 because the channel 172 is recessed relative to surrounding portions of the bottom surface of the lower housing, the exhaust vent 170 includes an exit opening 171 disposed at the seam 165 that opens to the backside surface 153 of the pump assembly 150. As illustrated, the exit opening 171 may have a rectangular shape.
  • FIG 6 is a top view of the negative pressure source 190 and lower housing 184 of the pump assembly 150.
  • the negative pressure source 190 can have a spigot 192.
  • the negative pressure source 190 can discharge pump exhaust through the spigot 192.
  • the negative pressure source 190 can exhaust through the spigot 192 the air that has been drawn into the negative pressure source 190 to establish a negative pressure at the wound site, as discussed above.
  • the exhaust feed 174 can include a hollow tube portion that extends from the top surface of the lower housing 184 toward the spigot 192 of the negative pressure source 190.
  • the pump outlet 192 can be connected to the exhaust feed 174 by a conduit (e.g., silicone tubing).
  • conduit is not shown.
  • a non-limiting, illustrative example of a suitable conduit is a short piece of silicone tubing that has one end fitted over the spigot 192 and the other end fit over the exhaust feed 174.
  • Figure 6 also shows that the lower housing 184 can include a plurality of housing anchors 155 that extend from the top surface of the lower housing 184.
  • the housing anchors 155 can be adapted to secure together the upper housing 182 (shown in Figure 4) and the lower housing 184, as discussed previously.
  • Figure 7 is a side cross-sectional view of the lower housing 184 of the pump assembly 150.
  • the lower housing 184 can have a connector port opening 186 through which the pump connector 152 (shown in Figure 4) extends.
  • Figure 7 illustrates that the exhaust feed 174 can be arranged as a hollow tube that provides a flow path across the lower housing 184.
  • the exhaust feed 174 can provide a flow path from the internal space of the pump assembly 150 to the channel 172 of the exhaust vent 170.
  • the channel 172 can extend from the vent outlet 174 to a backside surface 153 of the lower housing 184.
  • Figure 8 is a canister-side view of the lower housing 184 of the pump assembly 150.
  • the channel 172 can have an elongate shape that extends generally from the exhaust feed 174 rearwardly to a back surface of the casing.
  • the channel 172 can have a width 176 that extends from a lateral side of the channel 172 to a medial side of the channel 172.
  • the width 176 of the channel 172 expands as the channel 172 extends from the exhaust feed 174 to the backside edge 183 of the lower housing 184.
  • the channel 172 can have a proximal portion 173 and a distal portion 175.
  • the proximal portion 173 has a width 176 that is smaller than the width 176 of the distal portion 175.
  • FIG 9 is a backside view of the canister-facing surface of the lower housing 184.
  • the pump assembly 150 can have a central rail portion 156 that is positioned over a bed portion 166 of the canister 160 when the pump assembly 150 is connected to the canister 160.
  • the rail portion 156 of the pump assembly is disposed between a pair of wing portions 158, as shown in Figure 5.
  • the bed portion 166 of the canister 160 is disposed between a pair of rail portions 168.
  • the lower housing 184 can be contoured to form the rail portion 156 and the wing portions 158 of the pump assembly 150.
  • the channel 172 can be disposed on the canister-facing surface 188 of the lower housing 184. As shown in Figure 9, the channel 172 can be disposed entirely within the rail portion 156 of the lower housing 184.
  • the channel 172 can sit on top of the pump-facing surface of the bed portion 166 (see, e.g., Figure 5) of the canister 160.
  • the channel 172 can form a planar chamber as a sort of plenum chamber through which the pump exhaust is conveyed from the exhaust feed 174 to the exit opening 171 (shown in Figure 5).
  • the channel 172 and the pump-facing surface of the canister 160 can form an enclosed airflow passageway or duct that extends from the exhaust feed 174 to the backside edge 153 of the pump assembly 150.
  • the channel 172 can form an enclosed airflow passageway or duct with a surface that supports the lower housing 184 of the pump assembly 150.
  • the lower housing 184 of the pump assembly 150 can rest on a horizontal surface (e.g., table) when the pump assembly 150 is used without a canister 160, thereby forming an enclosed airflow passageway or duct between the channel 172 and the horizontal surface upon which the lower housing 184 rests.
  • the exhaust vent 170 can be arranged to minimize the noise of the pump exhaust and to avoid the pump exhaust contacting a user of the pump assembly 150.
  • the exhaust feed 174 is directed toward an opposing surface (e.g., top surface of the canister 160 when the pump assembly 150 is attached to the canister 160).
  • an opposing surface e.g., top surface of the canister 160 when the pump assembly 150 is attached to the canister 160.
  • the exhaust vent 170 is adapted to dissipate jets of air and sound waves that are created by the pump assembly 150.
  • the channel 172 of the exhaust vent 170 forms a planar, plenum-like structure with the opposing surface, creating a rectangular duct.
  • the channel 172 can be designed to promote laminar flow through the plenum-like structure of the exhaust vent 170, thereby reducing sound and jet forces produced by the pump exhaust.
  • the channel 172 will form a substantially rectangular duct with the opposing surface that overlays the channel 172, with the proximal portion near the exhaust feed 174 having a smaller cross-sectional area than the distal portion near the exit opening 171 (shown in Figure 5).
  • Increasing the cross-sectional area of the plenum-like structure of the exhaust vent 170 can reduce the flow velocity of the pump exhaust and thereby reduce sound and jet forces produced by the pump exhaust.
  • the pump exhaust can include moisture that is drawn from the wound along with the air that the negative pressure source 190 aspirates from underneath the wound dressing to create a negative pressure under the wound dressing.
  • the internal components of the pump assembly 150 e.g., electronics, sensors, valves, etc.
  • the internal components of the pump assembly 150 can be protected from fouling due to moisture and aerosol debris that can be drawn into pump assembly by the negative pressure source 190.
  • the exhaust vent 170 can be adapted to blow the pump exhaust in a direction that avoids the pump exhaust contacting the user. In this way, the exhaust vent 170 can avoid a user feeling the force of the pump exhaust or being contacted by moisture drawn from the wound.
  • the exhaust vent 170 can further be adapted to minimize the audible level of the pump assembly 150 that is detected by the user. For example, the exhaust vent 170 can direct the sound produced by the pump assembly away from the user. As shown in Figure 5, the exhaust vent 170 can be directed to blow the pump exhaust out of a backside surface 153 of the pump assembly 150. Blowing the pump exhaust out the backside surface 153 can direct moisture, exhaust forces, and pump sounds away from the user.
  • the exhaust vent 170 can be arranged so that moisture from the pump exhaust drains out of the pump assembly 150.
  • the conduit that connects the pump outlet 192 to the vent outlet 174 can be arranged so that moisture within the conduit flows in a direction from the pump outlet 192 to the vent outlet 174 when the pump assembly 150 is in a horizontal orientation (i.e., supported by lower housing 184) or in suspended orientation (i.e, suspended from the strap anchor 159).
  • Conditional language such as“can,”“could,”“might,” or“may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain embodiments include, while other embodiments do not include, certain features, elements, or steps. Thus, such conditional language is not generally intended to imply that features, elements, or steps are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without user input or prompting, whether these features, elements, or steps are included or are to be performed in any particular embodiment.
  • the terms “comprising,” “including,” “having,” and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations, and so forth.
  • the term “or” is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term“or” means one, some, or all of the elements in the list.
  • the term“and/or” in reference to a list of two or more items covers all of the following interpretations of the word: any one of the items in the list, all of the items in the list, and any combination of the items in the list.
  • the term“each,” as used herein, in addition to having its ordinary meaning, can mean any subset of a set of elements to which the term“each” is applied.
  • the words“herein,”“above,” “below,” and words of similar import when used in this application, refer to this application as a whole and not to any particular portions of this application.
  • the terms “generally parallel” and“substantially parallel” refer to a value, amount, or characteristic that departs from exactly parallel by less than or equal to 15 degrees, 10 degrees, 5 degrees, 3 degrees, 1 degree, or 0.1 degree.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

La présente invention concerne, selon des modes de réalisation, des systèmes et des appareils de thérapie de plaie par pression négative, ainsi que les procédés d'utilisation des systèmes et des appareils. Dans certains modes de réalisation, l'appareil comprend un ensemble pompe ayant une source de pression négative enfermée dans un boîtier. Une surface faisant face à la cartouche du boîtier est conçue pour relier de manière amovible l'ensemble pompe à une cartouche. La source de pression négative est configurée pour évacuer le fluide vers l'extérieur du boîtier par l'intermédiaire d'un évent d'échappement. L'évent d'échappement comporte une ouverture d'alimentation en gaz d'échappement qui est disposée sur un canal évidé sur la surface faisant face à la cartouche du boîtier.
PCT/IB2019/053509 2018-04-30 2019-04-29 Évent d'échappement pour un système de thérapie de plaie par pression négative WO2019211732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1806992.2A GB201806992D0 (en) 2018-04-30 2018-04-30 Exhaust vent for a negative pressure wound therapy system
GB1806992.2 2018-04-30

Publications (1)

Publication Number Publication Date
WO2019211732A1 true WO2019211732A1 (fr) 2019-11-07

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GB (1) GB201806992D0 (fr)
WO (1) WO2019211732A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB202104021D0 (en) 2021-03-23 2021-05-05 Smith & Nephew Negative pressure wound therapy devices
EP3915601A1 (fr) * 2020-05-25 2021-12-01 Mölnlycke Health Care AB Dispositif mobile de traitement de plaies par pression négative avec réduction du bruit de pompe
GB202117771D0 (en) 2021-12-09 2022-01-26 Smith & Nephew User-friendly negative pressure wound therapy devices and methods of operating such devices
US11389582B2 (en) 2017-09-29 2022-07-19 T.J. Smith And Nephew, Limited Negative pressure wound therapy apparatus with removable panels
WO2022200453A1 (fr) 2021-03-23 2022-09-29 T.J.Smith And Nephew, Limited Dispositifs de traitement de plaies par pression négative
US11559619B2 (en) 2018-04-30 2023-01-24 Smith & Nephew Asia Pacific Pte. Limited Systems and methods for controlling dual mode negative pressure wound therapy apparatus
WO2023072704A2 (fr) 2021-10-26 2023-05-04 T.J. Smith And Nephew, Limited Dispositifs conviviaux de traitement des plaies par pression négative et procédés pour faire fonctionner de tels dispositifs
US11642450B2 (en) 2017-12-29 2023-05-09 T.J. Smith And Nephew, Limited Negative pressure wound therapy apparatuses and methods for using the same
US11744932B2 (en) 2018-05-23 2023-09-05 T.J.Smith And Nephew, Limited Systems and methods for determining blockages in a negative pressure wound therapy system
US11806468B2 (en) 2018-03-19 2023-11-07 T.J.Smith And Nephew, Limited Securing control of settings of wound therapy apparatuses
US11955829B2 (en) 2018-04-30 2024-04-09 Smith & Nephew Asia Pacific Pte. Limited Power source charging for negative pressure wound therapy apparatus

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WO2013171585A2 (fr) * 2012-05-15 2013-11-21 Smith & Nephew Plc Appareil de thérapie pour plaies à pression négative
US8641693B2 (en) * 2010-05-18 2014-02-04 Kci Licensing, Inc. Reduced-pressure canisters and methods for recycling
WO2016103033A2 (fr) * 2014-12-22 2016-06-30 Smith & Nephew Plc Appareil et procédés de traitement des plaies par pression négative
WO2017027850A1 (fr) 2015-08-13 2017-02-16 Smith & Nephew, Inc. Systèmes et procédés pour la mise en oeuvre d'une thérapie par pression réduite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8641693B2 (en) * 2010-05-18 2014-02-04 Kci Licensing, Inc. Reduced-pressure canisters and methods for recycling
WO2013171585A2 (fr) * 2012-05-15 2013-11-21 Smith & Nephew Plc Appareil de thérapie pour plaies à pression négative
WO2016103033A2 (fr) * 2014-12-22 2016-06-30 Smith & Nephew Plc Appareil et procédés de traitement des plaies par pression négative
WO2017027850A1 (fr) 2015-08-13 2017-02-16 Smith & Nephew, Inc. Systèmes et procédés pour la mise en oeuvre d'une thérapie par pression réduite

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11389582B2 (en) 2017-09-29 2022-07-19 T.J. Smith And Nephew, Limited Negative pressure wound therapy apparatus with removable panels
US11642450B2 (en) 2017-12-29 2023-05-09 T.J. Smith And Nephew, Limited Negative pressure wound therapy apparatuses and methods for using the same
US11806468B2 (en) 2018-03-19 2023-11-07 T.J.Smith And Nephew, Limited Securing control of settings of wound therapy apparatuses
US11559619B2 (en) 2018-04-30 2023-01-24 Smith & Nephew Asia Pacific Pte. Limited Systems and methods for controlling dual mode negative pressure wound therapy apparatus
US11955829B2 (en) 2018-04-30 2024-04-09 Smith & Nephew Asia Pacific Pte. Limited Power source charging for negative pressure wound therapy apparatus
US11744932B2 (en) 2018-05-23 2023-09-05 T.J.Smith And Nephew, Limited Systems and methods for determining blockages in a negative pressure wound therapy system
US12029842B2 (en) 2018-05-23 2024-07-09 T.J.Smith And Nephew, Limited Systems and methods for determining blockages in a negative pressure wound therapy system
WO2021239654A1 (fr) * 2020-05-25 2021-12-02 Mölnlycke Health Care Ab Dispositif de thérapie de plaie par pression négative mobile avec réduction de bruit de pompe
US11931503B2 (en) 2020-05-25 2024-03-19 Mölnlycke Health Care Ab Mobile negative pressure wound therapy device with reduced pump noise
EP3915601A1 (fr) * 2020-05-25 2021-12-01 Mölnlycke Health Care AB Dispositif mobile de traitement de plaies par pression négative avec réduction du bruit de pompe
WO2022200453A1 (fr) 2021-03-23 2022-09-29 T.J.Smith And Nephew, Limited Dispositifs de traitement de plaies par pression négative
GB202104021D0 (en) 2021-03-23 2021-05-05 Smith & Nephew Negative pressure wound therapy devices
GB2620320A (en) * 2021-03-23 2024-01-03 Smith & Nephew Negative pressure wound therapy devices
WO2023072704A2 (fr) 2021-10-26 2023-05-04 T.J. Smith And Nephew, Limited Dispositifs conviviaux de traitement des plaies par pression négative et procédés pour faire fonctionner de tels dispositifs
GB202117771D0 (en) 2021-12-09 2022-01-26 Smith & Nephew User-friendly negative pressure wound therapy devices and methods of operating such devices

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