GB2378392A - Wound irrigation/suction device - Google Patents

Wound irrigation/suction device Download PDF

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Publication number
GB2378392A
GB2378392A GB0214186A GB0214186A GB2378392A GB 2378392 A GB2378392 A GB 2378392A GB 0214186 A GB0214186 A GB 0214186A GB 0214186 A GB0214186 A GB 0214186A GB 2378392 A GB2378392 A GB 2378392A
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GB
United Kingdom
Prior art keywords
pouch
device
applicator
cavity
fluid
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB0214186A
Other versions
GB0214186D0 (en
GB2378392B (en
Inventor
Jason Carl Stonier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Recuperatio Ltd
Original Assignee
Recuperatio Ltd
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
Priority to GB0115054A priority Critical patent/GB0115054D0/en
Application filed by Recuperatio Ltd filed Critical Recuperatio Ltd
Publication of GB0214186D0 publication Critical patent/GB0214186D0/en
Publication of GB2378392A publication Critical patent/GB2378392A/en
Application granted granted Critical
Publication of GB2378392B publication Critical patent/GB2378392B/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/008Drainage tubes; Aspiration tips
    • A61M1/0088Drainage tubes; Aspiration tips with a seal, e.g. to stick around a wound for isolating the treatment area
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0058Suction-irrigation systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/008Drainage tubes; Aspiration tips
    • A61M1/0084With gas or fluid supply means, e.g. for supplying rinsing fluids, anticoagulants
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M27/00Drainage appliances for wounds or the like, i.e. wound drains, implanted drains

Abstract

A fluid transfer device 1 for effecting transfer of a fluid to or from the cavity (16) of a wound comprises<BR> ```a reduced pressure applicator 2 having a chamber 10 for location over the wound and being adapted to maintain a reduced pressure in the cavity (16) thereof, the applicator 2 having an aperture (40) by means of which the reduced pressure is applied to the chamber 10;<BR> ```an inflatable pouch 3 mounted on the applicator 2 and provided at least partly in said chamber 10; and<BR> ```at least one fluid transfer conduit 12 having an end region carried by the pouch 3 for transferring fluid to or from the cavity (16). The applicator may be in the form of a rigid cup, when a source of suction is applied the inflatable pouch will expand and fill the wound cavity. The fluid transfer conduits, once in contact with the wound surface will remove exudate or add disinfectant.

Description

<Desc/Clms Page number 1>

FLUID TRANSFER DEVICE The present invention relates to a fluid transfer device intended for use in the treatment of wounds, particularly but not exclusively dermal ulcers.

A dermal ulcer is an area of tissue that has cavitated due to the action of bacteria. Dermal ulcers can range from lesions to bottle-shaped wounds with a small opening and larger cavity or may even be a tunnelled-wound that transects a tissue member.

The internal surface of the cavity of a dermal ulcer is saturated with infected fluids and particulates. These combine with a reduced blood supply, due to collapse and blockage of capillaries, to promote fast necrosis of the tissue. This prevents natural healing of the ulcer and its size grows.

The most commonly used therapy for the treatment of dermal ulcers involves the use of compression bandages but these suffer from the disadvantage that they need to be worn for protracted periods of time during which they may significantly impair function and movement of the affected area to which the bandage has been applied.

A further treatment involves the use of surgery which aims to close the wound using skin grafting. In this case, a surgeon takes a graft from a donor site on the patient and transplants the normal tissue onto the site of the ulcer. This procedure aims to lessen internal infection allowing natural closure but rarely works well. Furthermore surgery is traumatic for the patient and costly in terms of the surgeons time.

It is also known to position a foam insert in the ulcer cavity for the purpose of absorbing exudate but such inserts require frequent replacement, provide a bed for infection, and are distressing for the patient.

<Desc/Clms Page number 2>

It is therefore an object of the present invention to obviate or mitigate the abovementioned disadvantages.

According to the present invention there is provided a fluid transfer device for effecting transfer of a fluid to or from the cavity of a wound, the device comprising a reduced pressure applicator having a chamber for location over the wound and being adapted to maintain an applied reduced pressure in the cavity thereof, said applicator having an aperture by means of which the reduced pressure is applied to the chamber, an inflatable pouch mounted in the applicator and provided at least partly in said chamber; and at least one fluid transfer conduit having an end carried by the pouch and communicating with said chamber for transferring fluid to or from the cavity.

In use of the device, the applicator is positioned over the wound, which may for example be a leg ulcer, and a reduced pressure is applied to the interior chamber of the applicator and thus also to the wound cavity. Additionally, the pouch is caused to inflate so as generally to adopt the same configuration as the wound cavity. The inflation of the pouch causes the (open) ends of the tubes to be positioned adjacent the interior wall of the wound cavity. Fluid (e. g. wound exudate) may be drained from the cavity by applying suction to the fluid transfer conduit (s). Alternatively a fluid (e. g. a disinfectant) may be supplied along the fluid transfer conduit (s) into the cavity for treatment of the wound. The application of reduced pressure to the interior of the cavity has a therapeutic benefit in that it assists in closure of the opening of the wound.

It will thus be appreciated that the invention provides a simple and effective means for ensuring fluid transfer to or from a wound.

<Desc/Clms Page number 3>

In a preferred embodiment of the invention, inflation of the pouch is by means of the interior of the pouch being in communication with ambient air external to the chamber. In this case, the reduction in pressure (below atmospheric) in the wound cavity causes ambient air to be drawn into the pouch to equalise pressures, resulting in inflation of the pouch. This embodiment of the invention is particularly preferred because the reduced pressure within the applicator serves the dual role of inflating the pouch and providing the therapeutic benefit to which reference has been made above.

In this embodiment, the pouch is preferably in the form of a bag supported at its mouth on the applicator such that the mouth is"open"allowing the interior of the bag to be in communication with the ambient air so as to be inflatable as described above.

In an alternative embodiment, inflation of the pouch may be effected by a pressurised fluid (preferably air) supplied to the interior of the pouch. In this embodiment, the interior of the pouch may be in communication with a chamber which provided on the applicator and which is adapted to be connected to a source of elevated fluid pressure. A device relying on the use of pressurised fluid to inflate the pouch may be required in certain circumstances in which the differential pressure alone between the internal applicator pressure (usually a mild vacuum) and the ambient atmosphere is insufficient to inflate the pouch. However a device relying on pressurised fluid is less preferred due to the additional complexity of the device (e. g. the need to provide the additional chamber) and also the need to provide a source of pressurised fluid (e. g. compressed air).

Preferably the applicator is in the form of a rigid cup (e. g. generally hemispherical) which may for example be of polyethylene or other material capable of withstanding the reduced pressure to which the applicator is subjected without collapse. The applicator preferably has a conformable edge for ensuring a generally airtight seal between the applicator and the patient's skin (around the wound) to which it is applied. This conformable edge is preferably provided by a gel-filled skirt extending around the peripheral edge of the applicator.

<Desc/Clms Page number 4>

Preferably the pouch extends (in its uninflated condition) beyond but within the circumference of the edge of the applicator that is intended to contact the patients' skin.

Preferably a plurality of fluid transfer conduits are provided. Preferably the or each transfer conduit is a fine-bore tube and preferably also the or each fine-bore tube extends from externally of the applicator into the pouch and is fixed at its end to the interior wall of the pouch in register with a respective aperture provided therein. There may, for example, be 1 to 10 apertures per square centimetre over that region of the pouch in which the apertures are provided.

Preferably excess lengths of the fluid transfer tubes are provided (e. g. in coiled form) which may be"taken-up"during inflation of the pouch so as to prevent the tubes form"holding back"inflation of the pouch.

If desired, certain of the tubes may be used exclusively for drainage of fluid from the cavity and the other tubes used exclusively for purging or flushing operations.

The material of the pouch is preferably elastomeric and is conveniently latex although other materials can be used.

The invention will be further described, by way of example only, with reference to the accompanying drawings, in which: Fig 1 schematically illustrates a first embodiment of fluid transfer device in accordance with the invention for the treatment of ulcers; Fig 2 is a perspective view of the cup of the device shown in Fig 1; Fig 3 illustrates the inflatable pouch of the device shown in Fig 1; Fig 4 illustrates the device of Fig 1 located on an ulcer but prior to inflation of the pouch;

<Desc/Clms Page number 5>

Fig 5 illustrates the device of Fig 1 with the pouch inflated for the purposes of effecting drainage of the ulcer; Fig 6 illustrates treatment of an ulcer that has transected a tissue member; and Fig 7 illustrates a second embodiment of fluid transfer device in accordance with the invention Referring to Fig 1, the illustrated fluid transfer device 1 comprises a generally hemispherical cup 2 on which is supported an inflatable, somewhat pear-shaped pouch 3 and which is further provided with a port 4 to which is attached an air/suction line 5. Furthermore, the mouth of the cup 2 has a soft-walled, sealing skirt 6 filled with a gel (e. g. silicone gel) or comprising a similarly deformable material.

Referring now to Fig 3, it will be seen that the pouch 3 has a mouth 7 supported on the inner annular surface of a grommet 8 so that mouth 7 of the pouch is open to the atmosphere. In the assembled device the grommet 8 locates in an aperture 9 provided adjacent the crown of the cup 2 (see Fig 2) so that the pouch 3 extends downwardly through the interior chamber 10 of the cup 2 and beyond the sealing skirt 6. With the grommet located in the aperture 9, the mouth 7 of the pouch remains open to atmosphere.

The pouch is provided with a fluid transfer assembly 11 comprising a plurality of fine-bore tubes 12 (see Fig 3) which are mounted, at one of their ends, on a manifold arrangement 13 provided externally of the pouch 3 and which extend therefrom downwardly through the open mouth 7 of the pouch 3 into the interior thereof. Within the pouch 3, the fine-bore tubes 12 extend to the lower or outer region thereof at which there are formed, in the walls of the pouch 3, a plurality of apertures 14 each having a diameter which is the same as that of the fine-bore tubes 12. At their lower ends, the fine-bore tubes each communicate with the exterior of the pouch via a respective aperture 14 and are located in position by virtue of being bonded to the pouch.

<Desc/Clms Page number 6>

The illustrated arrangement of pouch 3 and fine-bore tubes 13 can be prepared by a dipping process (or otherwise) using a former which has the same general size and shape as the uninflated pouch 3 and which further has projections for providing the fine apertures 11. Prior to dipping, the fine-bore tubes 12 each have one of their ends fitted over a projection. Subsequently the former is dipped in latex or other suitable material which is then allowed to dry/cure. The dried/cured latex is then stripped from the former and turned inside out so as to produce the arrangement of pouch 3 and fine-bore tubes 12 as illustrated in the drawings.

Within the manifold, the upper ends of the fine-bore tubes 12 are each in communication with a main fluid supply or discharge tube 15.

Reference is now made to Figs 4 and 5 which illustrate use of the device for effecting drainage of an ulcer. More specifically, Fig 4 schematically depicts ulcerated tissue in which the ulcer (e. g. a leg ulcer) is shown as a bottle-shaped cavity 16 in a patient's skin 17. To effect drainage of the ulcer, the device is positioned onto the patient's skin 16 with the soft sealing skirt 6 located around the"opening"of the ulcer and with the lower end of the pouch protruding into the top of the ulcer cavity 16. With the device so positioned, the gel filled skirt gives gentle contact on hypersensitive skin and ensures that the skirt 6 provides an air tight seal between itself and the patients skin, even if such skin is pitted or macerated, since the gel will flow from high to low points and pressures.

With the device positioned as shown in Fig 4, suction is applied to the tube 5 so as to reduce the pressure within the chamber 10 and the cavity 16 of the ulcer.

The effect of this pressure reduction is that ambient air enters the (open) mouth 7 of the pouch (as depicted by arrow 18 in Fig 3) thus causing the pouch to inflate so that its lower region conforms to, and contacts, the interior surface of the ulcer cavity, as depicted in Fig 5.

<Desc/Clms Page number 7>

It will be appreciated that the lower ends of the fine-bore tubes 12 which are carried by the pouch 3 are now in effect in contact with the interior wall of the ulcer cavity 16.

Suction is applied to the tube 15 so that exudate from the cavity 16 is drawn into the lower ends of the fine-bore tubes 12, upwardly therealong and then via the manifold 13 and tube 15 so to be drained from the ulcer cavity 16. Furthermore, not only is the cavity drained, but the reduced pressure within the cup 2 draws the edges of the ulcer closer together, promotes tissue migration to the inner surface and increases the blood supply. This achieves rapid wound closure.

As an alternative to drainage, treatment fluids may be supplied via the manifold 13 downwardly through the fine-bore tubes 12 so as to exit through the apertures 14. The fluid may for example be a disinfectant fluid applied for the purposes of back-flushing the wound.

Although the device has so far been described with reference to a bottleshaped wound, the device could equally be used for a shallow surface type ulcer, in which case the pouch 3 would simply inflate within the cup 2 whilst having the same effect as previously described.

The invention may also be applied to the rare case of a tunnelled wound such as depicted by reference numeral 19 in Fig 6. As shown in that Figure, the wound has two openings 20 and 21 to atmosphere. In this case, a device 1 as shown in, and described with reference to Fig 1, is positioned over opening 20. Over the other opening 21 is provided a cup 22 of the same type as illustrated in Fig 2, but having a blanking plug 23 over the aperture 9 and also a suction line 24 attached to the port 4.

In the case of the wound 19 shown in Fig 6, reduced pressure is applied to the interior of both the cup 2 of the device 1 and the cup 22 via their respective suction lines 5 and 24. The device 1 on the opening 20 may be operated in entirely the same manner as described with reference to Figs 4 and 5. The provision of the cups 2 and

<Desc/Clms Page number 8>

22 at each end of the wound 19 ensures that tissue migration is allowed at both ends of the wound.

It would be possible, but less ideal, to seal the opening 21 with a dressing (rather than with the cup 22) but this could impede tissue migration at that side.

Reference is now made to Fig 7 which illustrates a further embodiment of fluid transfer device in accordance with the invention.

The device 101 of Fig 7 is to a certain extent of similar construction to that illustrated in Figs 1-6 and comprises a cup 102 (of generally frusto-conical section) which is associated with an inflatable pouch 103 and which is further provided with a port 104 attached to a suction line 105. The cup 102 has a compliant skirt 106 and is associated with fine bone tubes 112 which extend within the pouch 103 and which open at the surface thereof.

The device 101 has facility for assisting inflation of the pouch 103 by means of air at elevated pressure for certain circumstances in which inflation of the pouch 103 by atmospheric pressure air may not be possible. To this end, the device 101 is provided (in the top of cup 102) with a chamber 130 connected via a port 131 source (not shown) air elevated pressure and the interior of pouch 103 is in communication with the chamber 130. In more detail, chamber 130 has upper and lower apertures provided with seal grommets 132 and 133 respectively and the exterior of the neck of pouch 103 is bonded to grommet 133, thus providing the aforementioned communication between chamber 130 and the interior pouch 103.

At the upper end of chamber 130, the tubes 112 are supported in a body 134 which is seemingly located in the upper seal grommet 132.

Externally of chamber 130 the tubes 112 are split into two"bundles"112a and 112b which are associated with respective manifold grommets 135 and 136. The

<Desc/Clms Page number 9>

bundle 112a serves for purging and flushing of the wound cavity Bundle 112b serves for extraction of fluid from the wound cavity.

Internally of chamber 130, excess lengths of the tubes 112 are provided (e. g. coiled or otherwise bundled) such that when the pouch 103 is inflated, the excess length of tubes 112 is taken-up to prevent the tubes 112 holding back inflation of the pouch 103.

Use of the device 101 is similar to that of device 1 described and illustrated in Figs 1-6 with the exception that, in the case of device 101, pressurised air may be supplied through fort 131 to effect inflation of the pouch 103.

Claims (15)

  1. CLAIMS 1. A fluid transfer device for effecting transfer of a fluid to or from the cavity of a wound, the device comprising a reduced pressure applicator having a chamber for location over the wound and being adapted to maintain an applied reduced pressure in the cavity thereof, said applicator having an aperture by means of which the reduced pressure is applied to the chamber, an inflatable pouch mounted in the applicator and provided at least partly in said chamber; and at least one fluid transfer conduit having an end region carried by the pouch for transferring fluid to or from the cavity.
  2. 2. A device as claimed in claim 1 wherein the interior of said pouch is in communication with ambient air external of the chamber permitting inflation of the pouch into the cavity.
  3. 3. A device as claimed in claim 2 wherein the pouch is in the form of a bag supported at its mouth on the applicator such that the interior of the pouch is in communication with ambient air.
  4. 4. A device as claimed in claim I wherein inflation of the pouch may be effected by a pressurised fluid supplied to the interior of the pouch.
  5. 5. A device as claimed in claim 4 wherein the interior of the pouch is in communication with a chamber which is provided on the applicator and which is adapted to be connected to a source of elevated fluid pressure.
  6. 6. A device as claimed in any one of claims 1 to 5 wherein a plurality of fluid transfer conduits are provided.
    <Desc/Clms Page number 11>
  7. 7. A device as claimed in any one of claims 1 to 6 wherein the or each fluid transfer conduit extends from externally of the applicator into the pouch and is fixed at its end to the interior wall of the pouch in register with a respective aperture provided therein.
  8. 8. A device as claimed in claim 3 wherein the or each fluid transfer tube extends from externally of the applicator into the pouch via the mouth thereof.
  9. 9. A device as claimed in any one of claims I to 8 wherein the or each fluid transfer conduit is a fine-bore tube.
  10. 10 A device as claimed in any one of claims 1 to 9 wherein the material of the pouch is elastomeric.
  11. 11. A device as claimed in claim 10 wherein the pouch is of latex.
  12. 12. A device as claimed in any one of claims 1 to 11 wherein the applicator is in the form of a rigid cup.
  13. 13. A device as claimed in any one of claims 1 to 12 wherein the applicator has a conformable edge for ensuring a generally airtight seal between the applicator and the patients skin.
  14. 14. A device as claimed in claim 13 wherein the conformable edge is provided by a gel-filled skirt extending around the peripheral edge of the applicator that is intended to contact the patient's skin.
  15. 15. A fluid transfer device substantially as hereinbefore described with reference to Figs 1 to 6 or Fig 7 of the accompanying drawings.
GB0214186A 2001-06-20 2002-06-20 Fluid transfer device Expired - Fee Related GB2378392B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0115054A GB0115054D0 (en) 2001-06-20 2001-06-20 Fluid transfer device

Publications (3)

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GB0214186D0 GB0214186D0 (en) 2002-07-31
GB2378392A true GB2378392A (en) 2003-02-12
GB2378392B GB2378392B (en) 2004-06-16

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GB0115054A Ceased GB0115054D0 (en) 2001-06-20 2001-06-20 Fluid transfer device
GB0214186A Expired - Fee Related GB2378392B (en) 2001-06-20 2002-06-20 Fluid transfer device

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Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005070480A1 (en) * 2004-01-27 2005-08-04 Ramot At Tel-Aviv University Ltd. Apparatus and methods for enzymatic debridement of skin lesions
WO2005082435A1 (en) 2004-02-24 2005-09-09 Huntleigh Technology Plc Tissue treatment device
WO2006005939A1 (en) * 2004-07-09 2006-01-19 Ethicon, Inc. Vacuum wound dressings
WO2006056408A1 (en) * 2004-11-23 2006-06-01 Malamutmann, Viktor Device for treating wounds
WO2006114637A2 (en) * 2005-04-27 2006-11-02 Smith & Nephew, Plc Wound treatment apparatus and method
WO2006122136A2 (en) * 2005-05-06 2006-11-16 Aesthera Apparatus and method to apply substances to tissue
CN1332636C (en) * 2005-03-16 2007-08-22 郭光华 Hydroject negative pressure suction wound-cleaning device
US7524315B2 (en) 2002-10-28 2009-04-28 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
WO2009071935A1 (en) 2007-12-06 2009-06-11 Smith & Nephew Plc Wound fillers
US7699830B2 (en) 2003-10-28 2010-04-20 Smith & Nephew Plc Wound cleansing apparatus with scaffold
US7753894B2 (en) 2004-04-27 2010-07-13 Smith & Nephew Plc Wound cleansing apparatus with stress
US7794450B2 (en) 2003-10-28 2010-09-14 Smith & Nephew Plc Wound cleansing apparatus with heat
US7842029B2 (en) 2004-05-07 2010-11-30 Aesthera Apparatus and method having a cooling material and reduced pressure to treat biological external tissue
US7883494B2 (en) 2004-10-29 2011-02-08 Smith & Nephew Plc Simultaneous aspirate and irrigate and scaffold
EP2293725A1 (en) * 2008-06-30 2011-03-16 Tyco Healthcare Group LP Apparatus for enhancing wound healing
US7964766B2 (en) 2003-10-28 2011-06-21 Smith & Nephew Plc Wound cleansing apparatus in-situ
US8062272B2 (en) 2004-05-21 2011-11-22 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US8105295B2 (en) 2004-04-28 2012-01-31 Smith & Nephew Plc Dressing and apparatus for cleansing the wounds
US8118794B2 (en) 2002-09-03 2012-02-21 Bluesky Medical Group, Inc. Reduced pressure treatment system
AU2006263650B2 (en) * 2005-06-29 2012-03-15 Applied Tissue Technologies, Llc Wound chamber for limb
US8162909B2 (en) 2005-09-15 2012-04-24 Smith & Nephew Plc Negative pressure wound treatment
US8257327B2 (en) 2003-10-28 2012-09-04 Smith & Nephew Plc Wound cleansing apparatus with actives
US8282611B2 (en) 2004-04-05 2012-10-09 Bluesky Medical Group, Inc. Reduced pressure wound treatment system
US8338402B2 (en) 2006-05-12 2012-12-25 Smith & Nephew Plc Scaffold
US8348910B2 (en) 2004-04-28 2013-01-08 Smith & Nephew Plc Apparatus for cleansing wounds with means for supply of thermal energy to the therapy fluid
US8366692B2 (en) 2008-01-08 2013-02-05 Richard Scott Weston Sustained variable negative pressure wound treatment and method of controlling same
US8449509B2 (en) 2004-04-05 2013-05-28 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US8460255B2 (en) 2006-05-11 2013-06-11 Kalypto Medical, Inc. Device and method for wound therapy
US8529548B2 (en) 2004-04-27 2013-09-10 Smith & Nephew Plc Wound treatment apparatus and method
US8551061B2 (en) 2007-07-02 2013-10-08 Smith & Nephew Plc Wound treatment apparatus with exudate volume reduction by heat
US8632523B2 (en) 2007-05-24 2014-01-21 Applied Tissue Technologies, Llc Wound treatment device employing negative pressure
US8663198B2 (en) 2009-04-17 2014-03-04 Kalypto Medical, Inc. Negative pressure wound therapy device
CN101208116B (en) 2005-04-27 2014-03-26 史密夫及内修公开有限公司 Wound treatment apparatus and method
US8758313B2 (en) 2003-10-28 2014-06-24 Smith & Nephew Plc Apparatus and method for wound cleansing with actives
US8808274B2 (en) 2007-11-21 2014-08-19 Smith & Nephew Plc Wound dressing
US8945074B2 (en) 2011-05-24 2015-02-03 Kalypto Medical, Inc. Device with controller and pump modules for providing negative pressure for wound therapy
EP2601984B1 (en) 2008-10-29 2015-04-01 KCI Licensing, Inc. Open-cavity, reduced-pressure treatment devices and systems
US9044579B2 (en) 2005-04-27 2015-06-02 Smith & Nephew Plc Wound treatment apparatus and method
US9058634B2 (en) 2011-05-24 2015-06-16 Kalypto Medical, Inc. Method for providing a negative pressure wound therapy pump device
US9061095B2 (en) 2010-04-27 2015-06-23 Smith & Nephew Plc Wound dressing and method of use
US9067003B2 (en) 2011-05-26 2015-06-30 Kalypto Medical, Inc. Method for providing negative pressure to a negative pressure wound therapy bandage
US9492326B2 (en) 2004-04-05 2016-11-15 Bluesky Medical Group Incorporated Reduced pressure wound treatment system
US9956121B2 (en) 2007-11-21 2018-05-01 Smith & Nephew Plc Wound dressing
US9962474B2 (en) 2007-11-21 2018-05-08 Smith & Nephew Plc Vacuum assisted wound dressing
US10010658B2 (en) 2013-05-10 2018-07-03 Smith & Nephew Plc Fluidic connector for irrigation and aspiration of wounds
US10058642B2 (en) 2004-04-05 2018-08-28 Bluesky Medical Group Incorporated Reduced pressure treatment system
US10080689B2 (en) 2007-12-06 2018-09-25 Smith & Nephew Plc Wound filling apparatuses and methods
US10201644B2 (en) 2005-09-07 2019-02-12 Smith & Nephew, Inc. Self contained wound dressing with micropump

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874387A (en) * 1972-07-05 1975-04-01 Pasquale P Barbieri Valved hemostatic pressure cap
US4250882A (en) * 1979-01-26 1981-02-17 Medical Dynamics, Inc. Wound drainage device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874387A (en) * 1972-07-05 1975-04-01 Pasquale P Barbieri Valved hemostatic pressure cap
US4250882A (en) * 1979-01-26 1981-02-17 Medical Dynamics, Inc. Wound drainage device

Cited By (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7364565B2 (en) 2001-07-27 2008-04-29 Ramot At Tel Aviv University Ltd. Controlled enzymatic removal and retrieval of cells
US8545464B2 (en) 2002-09-03 2013-10-01 Bluesky Medical Group Incorporated Reduced pressure treatment system
US8628505B2 (en) 2002-09-03 2014-01-14 Bluesky Medical Group Incorporated Reduced pressure treatment system
US10265445B2 (en) 2002-09-03 2019-04-23 Smith & Nephew, Inc. Reduced pressure treatment system
US9211365B2 (en) 2002-09-03 2015-12-15 Bluesky Medical Group, Inc. Reduced pressure treatment system
US8118794B2 (en) 2002-09-03 2012-02-21 Bluesky Medical Group, Inc. Reduced pressure treatment system
US9844474B2 (en) 2002-10-28 2017-12-19 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US10278869B2 (en) 2002-10-28 2019-05-07 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US9844473B2 (en) 2002-10-28 2017-12-19 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US7524315B2 (en) 2002-10-28 2009-04-28 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US9387126B2 (en) 2002-10-28 2016-07-12 Smith & Nephew Plc Apparatus for aspirating, irrigating and cleansing wounds
US7964766B2 (en) 2003-10-28 2011-06-21 Smith & Nephew Plc Wound cleansing apparatus in-situ
US9616208B2 (en) 2003-10-28 2017-04-11 Smith & Nephew Plc Wound cleansing apparatus
US8569566B2 (en) 2003-10-28 2013-10-29 Smith & Nephew, Plc Wound cleansing apparatus in-situ
US8128615B2 (en) 2003-10-28 2012-03-06 Smith & Nephew Plc Wound cleansing apparatus with scaffold
US7699830B2 (en) 2003-10-28 2010-04-20 Smith & Nephew Plc Wound cleansing apparatus with scaffold
US9446178B2 (en) 2003-10-28 2016-09-20 Smith & Nephew Plc Wound cleansing apparatus in-situ
US7794450B2 (en) 2003-10-28 2010-09-14 Smith & Nephew Plc Wound cleansing apparatus with heat
US8080702B2 (en) 2003-10-28 2011-12-20 Smith & Nephew Plc Wound cleansing apparatus in-situ
US8257327B2 (en) 2003-10-28 2012-09-04 Smith & Nephew Plc Wound cleansing apparatus with actives
US8882746B2 (en) 2003-10-28 2014-11-11 Smith & Nephew Plc Wound cleansing apparatus with scaffold
US8758313B2 (en) 2003-10-28 2014-06-24 Smith & Nephew Plc Apparatus and method for wound cleansing with actives
US9155828B2 (en) 2004-01-27 2015-10-13 Ramot At Tel-Aviv University Ltd. Apparatus and methods for enzymatic debridement of skin lesions
JP2007519465A (en) * 2004-01-27 2007-07-19 エンザイサージ リミテッド Apparatus and method for the enzymatic debridement of skin lesions
WO2005070480A1 (en) * 2004-01-27 2005-08-04 Ramot At Tel-Aviv University Ltd. Apparatus and methods for enzymatic debridement of skin lesions
US8128589B2 (en) 2004-01-27 2012-03-06 Ramot At Tel-Aviv University Ltd. Apparatus and methods for enzymatic debridement of skin lesions
WO2005082435A1 (en) 2004-02-24 2005-09-09 Huntleigh Technology Plc Tissue treatment device
JP2007522903A (en) * 2004-02-24 2007-08-16 ハントリー テクノロジー ピーエルシー Tissue processor
US10058642B2 (en) 2004-04-05 2018-08-28 Bluesky Medical Group Incorporated Reduced pressure treatment system
US10363346B2 (en) 2004-04-05 2019-07-30 Smith & Nephew, Inc. Flexible reduced pressure treatment appliance
US10350339B2 (en) 2004-04-05 2019-07-16 Smith & Nephew, Inc. Flexible reduced pressure treatment appliance
US9198801B2 (en) 2004-04-05 2015-12-01 Bluesky Medical Group, Inc. Flexible reduced pressure treatment appliance
US8282611B2 (en) 2004-04-05 2012-10-09 Bluesky Medical Group, Inc. Reduced pressure wound treatment system
US9492326B2 (en) 2004-04-05 2016-11-15 Bluesky Medical Group Incorporated Reduced pressure wound treatment system
US8303552B2 (en) 2004-04-05 2012-11-06 Bluesky Medical Group, Inc. Reduced pressure wound treatment system
US8449509B2 (en) 2004-04-05 2013-05-28 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US10105471B2 (en) 2004-04-05 2018-10-23 Smith & Nephew, Inc. Reduced pressure treatment system
US10413644B2 (en) 2004-04-27 2019-09-17 Smith & Nephew Plc Wound treatment apparatus and method
US10342729B2 (en) 2004-04-27 2019-07-09 Smith & Nephew Plc Wound cleansing apparatus with stress
US9452244B2 (en) 2004-04-27 2016-09-27 Smith & Nephew Plc Wound cleansing apparatus with stress
US8529548B2 (en) 2004-04-27 2013-09-10 Smith & Nephew Plc Wound treatment apparatus and method
US8845619B2 (en) 2004-04-27 2014-09-30 Smith & Nephew Plc Wound treatment apparatus and method
US7753894B2 (en) 2004-04-27 2010-07-13 Smith & Nephew Plc Wound cleansing apparatus with stress
US8348910B2 (en) 2004-04-28 2013-01-08 Smith & Nephew Plc Apparatus for cleansing wounds with means for supply of thermal energy to the therapy fluid
US9950100B2 (en) 2004-04-28 2018-04-24 Smith & Nephew Plc Negative pressure wound therapy dressing system
US9545463B2 (en) 2004-04-28 2017-01-17 Smith & Nephew Plc Wound treatment apparatus and method
US8105295B2 (en) 2004-04-28 2012-01-31 Smith & Nephew Plc Dressing and apparatus for cleansing the wounds
US10039868B2 (en) 2004-04-28 2018-08-07 Smith & Nephew Plc Dressing and apparatus for cleansing the wounds
US9044569B2 (en) 2004-04-28 2015-06-02 Smith & Nephew Plc Wound dressing apparatus and method of use
US7842029B2 (en) 2004-05-07 2010-11-30 Aesthera Apparatus and method having a cooling material and reduced pressure to treat biological external tissue
US8571648B2 (en) 2004-05-07 2013-10-29 Aesthera Apparatus and method to apply substances to tissue
US9272080B2 (en) 2004-05-21 2016-03-01 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US8795243B2 (en) 2004-05-21 2014-08-05 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US8062272B2 (en) 2004-05-21 2011-11-22 Bluesky Medical Group Incorporated Flexible reduced pressure treatment appliance
US9925313B2 (en) 2004-05-21 2018-03-27 Smith & Nephew, Inc. Flexible reduced pressure treatment appliance
US10207035B2 (en) 2004-05-21 2019-02-19 Smith & Nephew, Inc. Flexible reduced pressure treatment appliance
WO2006005939A1 (en) * 2004-07-09 2006-01-19 Ethicon, Inc. Vacuum wound dressings
US7883494B2 (en) 2004-10-29 2011-02-08 Smith & Nephew Plc Simultaneous aspirate and irrigate and scaffold
WO2006056408A1 (en) * 2004-11-23 2006-06-01 Malamutmann, Viktor Device for treating wounds
CN1332636C (en) * 2005-03-16 2007-08-22 郭光华 Hydroject negative pressure suction wound-cleaning device
US10035006B2 (en) 2005-04-27 2018-07-31 Smith & Nephew Plc Wound treatment apparatus and method
WO2006114637A2 (en) * 2005-04-27 2006-11-02 Smith & Nephew, Plc Wound treatment apparatus and method
AU2006238956B2 (en) * 2005-04-27 2012-08-30 Smith & Nephew, Plc Wound treatment apparatus and method
US9044579B2 (en) 2005-04-27 2015-06-02 Smith & Nephew Plc Wound treatment apparatus and method
WO2006114637A3 (en) * 2005-04-27 2007-03-15 Smith & Nephew Wound treatment apparatus and method
CN101208116B (en) 2005-04-27 2014-03-26 史密夫及内修公开有限公司 Wound treatment apparatus and method
JP2008539907A (en) * 2005-05-06 2008-11-20 エステラ Apparatus and method for applying a substance to a tissue
WO2006122136A3 (en) * 2005-05-06 2008-02-14 Aesthera Apparatus and method to apply substances to tissue
WO2006122136A2 (en) * 2005-05-06 2006-11-16 Aesthera Apparatus and method to apply substances to tissue
US8298197B2 (en) 2005-06-29 2012-10-30 Elof Eriksson Wound chamber for limb
AU2006263650B2 (en) * 2005-06-29 2012-03-15 Applied Tissue Technologies, Llc Wound chamber for limb
US10201644B2 (en) 2005-09-07 2019-02-12 Smith & Nephew, Inc. Self contained wound dressing with micropump
US8162909B2 (en) 2005-09-15 2012-04-24 Smith & Nephew Plc Negative pressure wound treatment
US8460255B2 (en) 2006-05-11 2013-06-11 Kalypto Medical, Inc. Device and method for wound therapy
US8338402B2 (en) 2006-05-12 2012-12-25 Smith & Nephew Plc Scaffold
US9693908B2 (en) 2007-05-24 2017-07-04 Applied Tissue Technologies Llc Wound treatment device employing negative pressure
US8632523B2 (en) 2007-05-24 2014-01-21 Applied Tissue Technologies, Llc Wound treatment device employing negative pressure
US9717829B2 (en) 2007-05-24 2017-08-01 Applied Tissue Technologies Llc Wound treatment device employing negative pressure
US8551061B2 (en) 2007-07-02 2013-10-08 Smith & Nephew Plc Wound treatment apparatus with exudate volume reduction by heat
US9956327B2 (en) 2007-07-02 2018-05-01 Smith & Nephew Plc Wound treatment apparatus with exudate volume reduction by heat
US10016309B2 (en) 2007-11-21 2018-07-10 Smith & Nephew Plc Wound dressing
US9844475B2 (en) 2007-11-21 2017-12-19 Smith & Nephew Plc Wound dressing
US9956121B2 (en) 2007-11-21 2018-05-01 Smith & Nephew Plc Wound dressing
US9962474B2 (en) 2007-11-21 2018-05-08 Smith & Nephew Plc Vacuum assisted wound dressing
US10123909B2 (en) 2007-11-21 2018-11-13 Smith & Nephew Plc Wound dressing
US10231875B2 (en) 2007-11-21 2019-03-19 Smith & Nephew Plc Wound dressing
US8808274B2 (en) 2007-11-21 2014-08-19 Smith & Nephew Plc Wound dressing
WO2009071935A1 (en) 2007-12-06 2009-06-11 Smith & Nephew Plc Wound fillers
US10080689B2 (en) 2007-12-06 2018-09-25 Smith & Nephew Plc Wound filling apparatuses and methods
US9999711B2 (en) 2008-01-08 2018-06-19 Bluesky Medical Group Inc. Sustained variable negative pressure wound treatment and method of controlling same
US8366692B2 (en) 2008-01-08 2013-02-05 Richard Scott Weston Sustained variable negative pressure wound treatment and method of controlling same
US9192700B2 (en) 2008-01-08 2015-11-24 Bluesky Medical Group, Inc. Sustained variable negative pressure wound treatment and method of controlling same
EP2293725A1 (en) * 2008-06-30 2011-03-16 Tyco Healthcare Group LP Apparatus for enhancing wound healing
EP2293725A4 (en) * 2008-06-30 2013-07-31 Covidien Lp Apparatus for enhancing wound healing
EP2601984B1 (en) 2008-10-29 2015-04-01 KCI Licensing, Inc. Open-cavity, reduced-pressure treatment devices and systems
US10111991B2 (en) 2009-04-17 2018-10-30 Smith & Nephew, Inc. Negative pressure wound therapy device
US8663198B2 (en) 2009-04-17 2014-03-04 Kalypto Medical, Inc. Negative pressure wound therapy device
US9061095B2 (en) 2010-04-27 2015-06-23 Smith & Nephew Plc Wound dressing and method of use
US10159604B2 (en) 2010-04-27 2018-12-25 Smith & Nephew Plc Wound dressing and method of use
US9808561B2 (en) 2010-04-27 2017-11-07 Smith & Nephew Plc Wound dressing and method of use
US9058634B2 (en) 2011-05-24 2015-06-16 Kalypto Medical, Inc. Method for providing a negative pressure wound therapy pump device
US8945074B2 (en) 2011-05-24 2015-02-03 Kalypto Medical, Inc. Device with controller and pump modules for providing negative pressure for wound therapy
US10300178B2 (en) 2011-05-26 2019-05-28 Smith & Nephew, Inc. Method for providing negative pressure to a negative pressure wound therapy bandage
US9067003B2 (en) 2011-05-26 2015-06-30 Kalypto Medical, Inc. Method for providing negative pressure to a negative pressure wound therapy bandage
US10010658B2 (en) 2013-05-10 2018-07-03 Smith & Nephew Plc Fluidic connector for irrigation and aspiration of wounds

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GB0214186D0 (en) 2002-07-31
GB2378392B (en) 2004-06-16

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