WO2009068666A2 - Attachment device for wound drainage system - Google Patents

Attachment device for wound drainage system Download PDF

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Publication number
WO2009068666A2
WO2009068666A2 PCT/EP2008/066466 EP2008066466W WO2009068666A2 WO 2009068666 A2 WO2009068666 A2 WO 2009068666A2 EP 2008066466 W EP2008066466 W EP 2008066466W WO 2009068666 A2 WO2009068666 A2 WO 2009068666A2
Authority
WO
WIPO (PCT)
Prior art keywords
attachment device
stationary part
wound
film
rotary part
Prior art date
Application number
PCT/EP2008/066466
Other languages
French (fr)
Other versions
WO2009068666A3 (en
Inventor
Truels Sterm Larsen
Klaus Budig
Brian Nielsen
Jesper Mads Bartroff Frederiksen
Jens Høg TRUELSEN
Original Assignee
Coloplast A/S
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 Coloplast A/S filed Critical Coloplast A/S
Publication of WO2009068666A2 publication Critical patent/WO2009068666A2/en
Publication of WO2009068666A3 publication Critical patent/WO2009068666A3/en

Links

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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/10—Tube connectors; Tube couplings
    • A61M39/1055—Rotating or swivel joints
    • 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
    • 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
    • A61M1/91—Suction aspects of the dressing
    • A61M1/912—Connectors between dressing and drainage tube

Definitions

  • the present invention generally relates to wound drainage systems, in which wound exudate is conveyed away from a wound by application of a suction force.
  • Such systems may comprise a wound enclosure which is attachable to a wound circumference of a living being to form an enclosure, and a suction source in fluid communication with the enclosure through a drainage tube to provide a pressure difference between a negative pressure in the enclosure and an air pressure of an ambient space.
  • the invention provides an improved attachment device for attaching the drainage tube at the wound site.
  • US 6,814,079 discloses a wound therapy combination comprising a suction head and a surgical drape.
  • the suction head comprises a tubular connector with a planar flange portion with projections that define flow channels for facilitating flow of liquids to an aperture.
  • WO 2006/052338 discloses a vacuum tube connection device for vacuum assisted wound dressings.
  • the attachment device includes a patch with an adhesive around its perimeter for attaching the patch.
  • the patch has a parted vacuum tube fixed to it such that the patch can be oriented on the primary wound cover to locate the tube near an opening in the cover to allow vacuum pressure to be communicated to the wound.
  • the known attachment devices cause patient discomfort and imply a risk of blockage of the drainage tube, because they are secured in a fixed relationship to the patient's body. Moreover, it is often burdensome to physicians to achieve sufficient sealing around the wound site due to handling difficulties.
  • the invention provides a system for draining fluid from a wound site at a skin surface of a living being, comprising
  • a suction source for conveying wound exudate away from a wound at the wound site, the drainage tube being in fluid communication with the suction source at one end thereof and with the wound site at the other end thereof;
  • attachment device for connecting the drainage tube to the wound site, the attachment device forming or being part of a sealing enclosure at the wound site; wherein the attachment device comprises:
  • the stationary part is preferably a centre part surrounded by the rotary part, which hence presents an outer part.
  • the invention provides an attachment device for use in a system according to the first aspect of the invention, the attachment device comprising :
  • a stationary part which is securable relative to the body of a living being; and - a rotary part for interconnecting a drainage tube and the stationary part, the rotary part being rotatable relative to the stationary part.
  • the invention provides a kit comprising an attachment device according to the second aspect of the invention and a film having an adhesive side for attachment of the film to the skin surface of a living being, and an opposite side, to which the attachment device is attached.
  • the direction or orientation of the drainage tube may be varied during wound drainage, i.e. without disconnecting the suction source from the wound site and without interrupting the applied suction. This increases patient comfort.
  • the attachment device may include an easily operable connecting device, e.g. a luer lock or bayonet coupling, for conveniently coupling the drainage tube to the attachment device to thereby provide fluid communication from the suction source to the wound site.
  • an easily operable connecting device e.g. a luer lock or bayonet coupling
  • the rotary part forms the sealing enclosure around the stationary part, so that the drainage tube may be disconnected without opening or removing the wound bandage.
  • the rotary part is preferably rotatable around an axis, which extends away from the patient's body.
  • the stationary part has a lower surface for co-extending with a body surface of the living being
  • the rotary part may be rotatable relative to the stationary part around an axis, which is transverse, preferably essentially perpendicular, to said lower surface.
  • the rotary part is preferably rotatable through an angle of at least 180 degrees with respect to the stationary part around the aforementioned axis, most preferably through an angle of 360 degrees.
  • the wound site may be sealed by a film having an adhesive side for attachment of the film to the skin surface, and an opposite side, to which the attachment device is attached.
  • One or more passages may be provided in the film in the area of the attachment device to allow wound exudate to pass from the wound into said sealing enclosure.
  • the film is preferably permeable to gasses and impermeable to liquids.
  • the film is preferably reinforced in the area of abutment of the attachment device.
  • the film may be reinforced by means of an annular element (ring) providing an abutment support for the rotary part.
  • flow passages may be formed through and/or around the stationary part.
  • horizontally oriented bores may be provided through the stationary part.
  • the stationary part may also or alternatively comprise a peripherally extending groove for facilitating fluid flow around the stationary part.
  • the stationary part may include a vertically oriented passage through which wound exudate may be sucked under the action of vacuum drawn through the drainage tube.
  • attachment device and kit is not limited to wound drainage systems.
  • the attachment device is applicable in an access port as disclosed in WO 2007/006306, which is hereby incorporated by reference.
  • the attachment device and kit of the present invention may further be applicable for the connection of urine leg bags to night bags.
  • Fig. 1 shows an attachment device 100 comprising a stationary inner part 102 and a rotary outer part 104.
  • the rotary part 104 is attached to the upper surface of a semipermeable film 106, the lower surface of which is adhered to the skin surface around the wound site (not shown).
  • a vertically extending passage 108 extends from an interior volume 110 in the stationary part 102 to a lower surface thereof, where the passage 108 connects to a passage 109 through the permeable film.
  • a drainage tube 112 connects the attachment device to a suction source (not shown).
  • Passages 114 extend transversely through the stationary part 102 to allow wound exudate sucked from the wound to travel through the stationary part.
  • a peripheral groove 116 in the stationary part allows exudate to travel along the outer surface of the stationary part.
  • the rotary part 104 is allowed to rotate 360 degrees relative to the stationary part. It may for example be made from styrene ethylene butadiene styrene (SEBS) or from silicone.
  • SEBS styrene ethylene butadiene styrene
  • the rotary part 104 forms a lower collar portion 118, which engages a lower surface of the stationary part 102.
  • a reinforcing ring 120 At the area of abutment between the rotary part 104 and the film 106, there is provided a reinforcing ring 120.
  • the reinforcing ring is more rigid than the film 106.
  • the ring 120 may be provided as an integrated element in the film, or as a separate element, see Fig. 2.
  • Fig. 3 shows the attachment device 100 when attached to a wound site, which in the example shown is on a leg portion of a human being.

Landscapes

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

Abstract

System for draining fluid from a wound site at a skin surface of a living being. The system comprises a suction source, a drainage tube for conveying wound exudate away from a wound at the wound site, the drainage tube being in fluid communication with the suction source at one end thereof and with the wound site at the other end thereof, and an attachment device for connecting the drainage tube to the wound site, the attachment device forming or being part of a sealing enclosure at the wound site. The attachment device comprises a stationary part arranged to be fixed to the living being's body, a rotary part interconnecting the tube and the stationary part, the rotary part being rotatable relative to the stationary part.

Description

ATTACHMENT DEVICE FOR WOUND DRAINAGE SYSTEM
Technical field
The present invention generally relates to wound drainage systems, in which wound exudate is conveyed away from a wound by application of a suction force. Such systems may comprise a wound enclosure which is attachable to a wound circumference of a living being to form an enclosure, and a suction source in fluid communication with the enclosure through a drainage tube to provide a pressure difference between a negative pressure in the enclosure and an air pressure of an ambient space. The invention provides an improved attachment device for attaching the drainage tube at the wound site.
Background of the invention
It has been found that fluid drainage of wounds promotes tissue growth and thereby facilitates a reduced healing time. The treatment has been exercised for many years, and various therapeutic apparatus for providing suction to a wound have been developed.
US 6,814,079 discloses a wound therapy combination comprising a suction head and a surgical drape. The suction head comprises a tubular connector with a planar flange portion with projections that define flow channels for facilitating flow of liquids to an aperture.
WO 2006/052338 discloses a vacuum tube connection device for vacuum assisted wound dressings. The attachment device includes a patch with an adhesive around its perimeter for attaching the patch. The patch has a parted vacuum tube fixed to it such that the patch can be oriented on the primary wound cover to locate the tube near an opening in the cover to allow vacuum pressure to be communicated to the wound.
The known attachment devices cause patient discomfort and imply a risk of blockage of the drainage tube, because they are secured in a fixed relationship to the patient's body. Moreover, it is often burdensome to physicians to achieve sufficient sealing around the wound site due to handling difficulties.
Summary of the invention
It is an object of preferred embodiments of the present invention to provide a system for draining fluid from a wound site a skin surface of a living being, which at least partially overcomes the above disadvantages.
In a first aspect, the invention provides a system for draining fluid from a wound site at a skin surface of a living being, comprising
- a suction source; - a drainage tube for conveying wound exudate away from a wound at the wound site, the drainage tube being in fluid communication with the suction source at one end thereof and with the wound site at the other end thereof;
- an attachment device for connecting the drainage tube to the wound site, the attachment device forming or being part of a sealing enclosure at the wound site; wherein the attachment device comprises:
- a stationary part arranged to be fixed to the living being's body;
- a rotary part interconnecting the tube and the stationary part, the rotary part being rotatable relative to the stationary part. The stationary part is preferably a centre part surrounded by the rotary part, which hence presents an outer part.
In a second aspect, the invention provides an attachment device for use in a system according to the first aspect of the invention, the attachment device comprising :
- a stationary part, which is securable relative to the body of a living being; and - a rotary part for interconnecting a drainage tube and the stationary part, the rotary part being rotatable relative to the stationary part.
In a third aspect, the invention provides a kit comprising an attachment device according to the second aspect of the invention and a film having an adhesive side for attachment of the film to the skin surface of a living being, and an opposite side, to which the attachment device is attached.
Due to the provision of the stationary part and the rotary part of the attachment device, the direction or orientation of the drainage tube may be varied during wound drainage, i.e. without disconnecting the suction source from the wound site and without interrupting the applied suction. This increases patient comfort.
Further, the attachment device may include an easily operable connecting device, e.g. a luer lock or bayonet coupling, for conveniently coupling the drainage tube to the attachment device to thereby provide fluid communication from the suction source to the wound site. Preferably, the rotary part forms the sealing enclosure around the stationary part, so that the drainage tube may be disconnected without opening or removing the wound bandage.
The rotary part is preferably rotatable around an axis, which extends away from the patient's body. Hence, in embodiments, in which the stationary part has a lower surface for co-extending with a body surface of the living being, the rotary part may be rotatable relative to the stationary part around an axis, which is transverse, preferably essentially perpendicular, to said lower surface. The rotary part is preferably rotatable through an angle of at least 180 degrees with respect to the stationary part around the aforementioned axis, most preferably through an angle of 360 degrees.
The wound site may be sealed by a film having an adhesive side for attachment of the film to the skin surface, and an opposite side, to which the attachment device is attached. One or more passages may be provided in the film in the area of the attachment device to allow wound exudate to pass from the wound into said sealing enclosure. The film is preferably permeable to gasses and impermeable to liquids.
The film is preferably reinforced in the area of abutment of the attachment device. For example, the film may be reinforced by means of an annular element (ring) providing an abutment support for the rotary part. In order to facilitate the flow of wound exudate within the sealing enclosure in the attachment device, flow passages may be formed through and/or around the stationary part. For example, horizontally oriented bores may be provided through the stationary part. The stationary part may also or alternatively comprise a peripherally extending groove for facilitating fluid flow around the stationary part. Further, the stationary part may include a vertically oriented passage through which wound exudate may be sucked under the action of vacuum drawn through the drainage tube.
The use of the attachment device and kit according to the second and third aspects of the invention is not limited to wound drainage systems. For example, the attachment device is applicable in an access port as disclosed in WO 2007/006306, which is hereby incorporated by reference. The attachment device and kit of the present invention may further be applicable for the connection of urine leg bags to night bags.
Description of the drawings
Preferred embodiments of the invention will now be described with reference to the accompanying drawings.
Fig. 1 shows an attachment device 100 comprising a stationary inner part 102 and a rotary outer part 104. The rotary part 104 is attached to the upper surface of a semipermeable film 106, the lower surface of which is adhered to the skin surface around the wound site (not shown). A vertically extending passage 108 extends from an interior volume 110 in the stationary part 102 to a lower surface thereof, where the passage 108 connects to a passage 109 through the permeable film. A drainage tube 112 connects the attachment device to a suction source (not shown). Passages 114 extend transversely through the stationary part 102 to allow wound exudate sucked from the wound to travel through the stationary part. A peripheral groove 116 in the stationary part allows exudate to travel along the outer surface of the stationary part. The rotary part 104 is allowed to rotate 360 degrees relative to the stationary part. It may for example be made from styrene ethylene butadiene styrene (SEBS) or from silicone. The rotary part 104 forms a lower collar portion 118, which engages a lower surface of the stationary part 102. At the area of abutment between the rotary part 104 and the film 106, there is provided a reinforcing ring 120. The reinforcing ring is more rigid than the film 106. The ring 120 may be provided as an integrated element in the film, or as a separate element, see Fig. 2.
Fig. 3 shows the attachment device 100 when attached to a wound site, which in the example shown is on a leg portion of a human being.

Claims

1. A system for draining fluid from a wound site at a skin surface of a living being, comprising
- a suction source; - a drainage tube for conveying wound exudate away from a wound at the wound site, the drainage tube being in fluid communication with the suction source at one end thereof and with the wound site at the other end thereof;
- an attachment device for connecting the drainage tube to the wound site, the attachment device forming or being part of a sealing enclosure at the wound site; wherein the attachment device comprises:
- a stationary part arranged to be fixed to the living being's body;
- a rotary part interconnecting the tube and the stationary part, the rotary part being rotatable relative to the stationary part.
2. A system according to claim 1, wherein the stationary part has a lower surface for co-extending with a body surface of the living being, and wherein the rotary part is rotatable relative to the stationary part around an axis, which is transverse to said lower surface.
3. A system according to claim 1 or 2, wherein the rotary part is rotatable through an angle of at least 180 degrees with respect to the stationary part.
4. A system according to any of the preceding claims, further comprising a film having an adhesive side for attachment of the film to the skin surface, and an opposite side, to which the attachment device is attached.
5. A system according to claim 4, wherein a passage is provided in the film in the area of the attachment device to allow wound exudate to pass from the wound into said sealing enclosure.
6. A system according to claim 4 or 5, wherein the film is reinforced in the area of abutment of the attachment device.
7. A system according to any of claims 4-6, wherein the film is permeable to gasses and impermeable to liquids.
8. A system according to any of the preceding claims, wherein the rotary part forms said sealing enclosure around the stationary part.
9. A system according claim 8, wherein flow passages are formed through and/or around the stationary part.
10. An attachment device for use in a system according to any of the preceding claims, the attachment device comprising :
- a stationary part, which is securable relative to the body of a living being; and - a rotary part for interconnecting a drainage tube and the stationary part, the rotary part being rotatable relative to the stationary part.
11. An attachment device according to claim 10, wherein the stationary part has a lower surface, and wherein the rotary part is rotatable relative to the stationary part around an axis, which is transverse to said lower surface.
12. An attachment device according to claim 10 or 11, wherein the rotary part is rotatable through an angle of at least 180 degrees with respect to the stationary part.
13. An attachment device according to any of claims 10-12, wherein the rotary part forms said sealing enclosure around the stationary part.
14. An attachment device according claim 13, wherein flow passages are formed through and/or around the stationary part.
15. A kit comprising an attachment device according to any of claims 10-14 and a film having an adhesive side for attachment of the film to the skin surface of a living being, and an opposite side, to which the attachment device is attached.
16. A kit according to claim 15, wherein a passage is provided in the film in the area of the attachment device to allow wound exudate to pass from the wound into said sealing enclosure.
17. A kit according to claim 15 or 16, wherein the film is reinforced in the area of abutment of the attachment device.
18. A kit according to any of claims 15-17, wherein the film is permeable to gasses and impermeable to liquids.
PCT/EP2008/066466 2007-11-30 2008-11-28 Attachment device for wound drainage system WO2009068666A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US476607P 2007-11-30 2007-11-30
US61/004,766 2007-11-30

Publications (2)

Publication Number Publication Date
WO2009068666A2 true WO2009068666A2 (en) 2009-06-04
WO2009068666A3 WO2009068666A3 (en) 2009-11-12

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009071932A3 (en) * 2007-12-06 2009-10-15 Smith & Nephew Plc Dressing
GB2531554A (en) * 2014-10-21 2016-04-27 Gavin Robert A device to drain a stoma or wound
US10080689B2 (en) 2007-12-06 2018-09-25 Smith & Nephew Plc Wound filling apparatuses and methods
EP3517147A1 (en) * 2010-01-20 2019-07-31 KCI Licensing, Inc. Wound-connection pads for fluid instillation and negative pressure wound therapy, and systems and methods
CN110573057A (en) * 2017-05-02 2019-12-13 安布股份有限公司 Sampling device for use with an endoscope
US11253399B2 (en) 2007-12-06 2022-02-22 Smith & Nephew Plc Wound filling apparatuses and methods

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6428514B1 (en) * 1997-11-14 2002-08-06 B. Braun Melsungen Ag Device for administering liquids to a patient
US20060100586A1 (en) * 2004-11-08 2006-05-11 Boehringer Laboratories, Inc. Tube attachment device for wound treatment
WO2006062680A1 (en) * 2004-12-03 2006-06-15 Medtronic Minimed, Inc. Multi-position infusion set device and process
WO2007092397A2 (en) * 2006-02-06 2007-08-16 Kci Licensing, Inc. Systems and methods for improved connection to wound dressings in conjunction with reduced pressure wound treatment systems
US20080011368A1 (en) * 2006-04-25 2008-01-17 Singh Vinay K Inline swivel connection for multi-lumen tubing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6428514B1 (en) * 1997-11-14 2002-08-06 B. Braun Melsungen Ag Device for administering liquids to a patient
US20060100586A1 (en) * 2004-11-08 2006-05-11 Boehringer Laboratories, Inc. Tube attachment device for wound treatment
WO2006062680A1 (en) * 2004-12-03 2006-06-15 Medtronic Minimed, Inc. Multi-position infusion set device and process
WO2007092397A2 (en) * 2006-02-06 2007-08-16 Kci Licensing, Inc. Systems and methods for improved connection to wound dressings in conjunction with reduced pressure wound treatment systems
US20080011368A1 (en) * 2006-04-25 2008-01-17 Singh Vinay K Inline swivel connection for multi-lumen tubing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009071932A3 (en) * 2007-12-06 2009-10-15 Smith & Nephew Plc Dressing
US10080689B2 (en) 2007-12-06 2018-09-25 Smith & Nephew Plc Wound filling apparatuses and methods
US11253399B2 (en) 2007-12-06 2022-02-22 Smith & Nephew Plc Wound filling apparatuses and methods
EP3517147A1 (en) * 2010-01-20 2019-07-31 KCI Licensing, Inc. Wound-connection pads for fluid instillation and negative pressure wound therapy, and systems and methods
US11026845B2 (en) 2010-01-20 2021-06-08 Kci Licensing, Inc. Wound-connection pads for fluid instillation and negative pressure wound therapy, and systems and methods
GB2531554A (en) * 2014-10-21 2016-04-27 Gavin Robert A device to drain a stoma or wound
CN110573057A (en) * 2017-05-02 2019-12-13 安布股份有限公司 Sampling device for use with an endoscope

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