NZ762849B2 - Fluid drainage or delivery device for treatment site - Google Patents

Fluid drainage or delivery device for treatment site

Info

Publication number
NZ762849B2
NZ762849B2 NZ762849A NZ76284918A NZ762849B2 NZ 762849 B2 NZ762849 B2 NZ 762849B2 NZ 762849 A NZ762849 A NZ 762849A NZ 76284918 A NZ76284918 A NZ 76284918A NZ 762849 B2 NZ762849 B2 NZ 762849B2
Authority
NZ
New Zealand
Prior art keywords
fluid
treatment site
channels
truss
flexible
Prior art date
Application number
NZ762849A
Other versions
NZ762849A (en
Inventor
Dorrin Asefi
Samuel Cutajar
Alister Todd Jowsey
Isaac Tristram Tane Mason
Russell Leith Speiden
Bean Elliot Graham Thompson
William Andrew Walbran
Brian Roderick Ward
Original Assignee
Aroa Biosurgery Limited
Filing date
Publication date
Application filed by Aroa Biosurgery Limited filed Critical Aroa Biosurgery Limited
Priority claimed from PCT/NZ2018/050134 external-priority patent/WO2019070133A1/en
Publication of NZ762849A publication Critical patent/NZ762849A/en
Publication of NZ762849B2 publication Critical patent/NZ762849B2/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/412—Tissue-regenerating or healing or proliferative agents
    • A61L2300/414—Growth factors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/40—Preparation and treatment of biological tissue for implantation, e.g. decellularisation, cross-linking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/005—Ingredients of undetermined constitution or reaction products thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/148—Materials at least partially resorbable by the body
    • A—HUMAN NECESSITIES
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    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/16—Biologically active materials, e.g. therapeutic substances
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    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
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    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
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    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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    • A61M1/92—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing with liquid supply means
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Abstract

bioresorbable device (2901) for implantation at a treatment site in the body of a patient, for draining fluid from the treatment site or delivering fluid to the treatment site. The device has a bioresorbable resilient truss (2915, 2916) for holding two tissue surfaces spaced apart, thereby defining one or more channels into which fluid from the treatment site can drain or from which fluid can be delivered to the treatment site, and a port in fluid communication with the one or more channels. The port is connectable to a source of negative pressure or positive pressure.

Claims (26)

1. A bioresorbable device for implantation at a treatment site in the body of a patient for draining fluid from the treatment site or delivering fluid to the treatment site, the device comprising: a bioresorbable resilient truss structure comprising first and second flexible elongate truss members joined together at discrete points to form a framework for holding two tissue surfaces spaced apart, thereby defining one or more channels between the tissue surfaces into which fluid from the treatment site can drain or from which fluid can be delivered to the treatment site; and a port in fluid communication with the one or more channels and being connectable to a source of negative pressure or positive pressure.
2. A device as claimed in claim 1, wherein at least one truss member is curved and located along a wall of the one or more channels.
3. A device as claimed in claim 2, wherein at least one truss member is substantially helical.
4. A device as claimed in any one of claims 1 to 3, wherein the truss forms a flexible tube defining the one or more channels.
5. A device as claimed in any proceeding claim, wherein the first truss member is substantially helical with a first pitch length, and the second truss member is substantially helical with a second pitch length that is different to the first pitch length.
6. A device as claimed in claim 5, wherein the first pitch length is between about three to about five times the second pitch length.
7. A device as claimed in claim 5, wherein the second pitch length is equal to the first pitch length, the first and second truss members being oppositely wound.
8. A device as claimed in any one of claims 5 to 7, further comprising two flexible elongate side truss members, each extending longitudinally along a side of one or more of the channels and joined at discrete points to the first and/or second truss members.
9. A device as claimed in any proceeding claim, further comprising a flexible bioresorbable sheet, the sheet forming at least a portion of a wall of the one or more channels.
10. A device as claimed in claim 9, wherein the flexible sheet is wrapped around the truss structure.
11. A device as claimed in claim 9 or 10, comprising a plurality of apertures in the flexible sheet along a wall of the one or more channels to permit fluid flow into the one or more channels.
12. A device as claimed in any preceding claim comprising two flexible bioresorbable sheets, wherein the one or more channels is formed between facing surfaces of the two flexible sheets.
13. A device as claimed in any one of claims 9 to 12, comprising a plurality of apertures in one or both flexible sheets along a wall of the one or more channels to permit fluid flow into the one or more channels.
14. A device as claimed in any one of claims 9 to 13, wherein at least one truss member comprises a length of thread or tape woven or sewn into or through at least one flexible sheet.
15. A device as claimed in claim 14, wherein the truss member(s) comprise suture.
16. A device as claimed in any one of claims 9 to 15, wherein the or when present each flexible sheet comprises one or more layers of extracellular matrix (ECM) or polymeric material.
17. A device as claimed in claim 16, wherein the ECM is formed from decellularised propria-submucosa of a ruminant forestomach.
18. A device as claimed in claim 17, wherein the ECM contains a bioactive agent selected from the group comprising doxycycline, tetracyclines, silver, FGF-2, TGF-B, TGF- B2, BMR7, BMP-12, PDGF, IGF, collagen, elastin, fibronectin, and hyaluronan.
19. A device as claimed in any preceding claim, wherein the truss forms an elongate flexible tube defining one or more of the one or more channels, and the device comprising one or more joiners holding at least a length of the flexible tube in a sinuous shape.
20. A device as claimed in any one of claims 1 to 19, wherein the truss structure defines a plurality of channels into which fluid from the treatment site can drain or from which fluid can be delivered to the treatment site.
21. A device as claimed in claim 20, comprising a primary channel and a plurality of secondary channels branching off the primary channel.
22. A device as claimed in any preceding claim, wherein the treatment site is a space between surfaces of muscle tissue, connective tissue or skin tissue that have been separated during surgery or as a result of trauma.
23. A system for draining fluid from a treatment site or delivering fluid to a treatment site in the body of a patient comprising: (i) a device as claimed in any preceding claim; (ii) a conduit releasably coupled to either the port of the device or to a fluid impermeable dressing such that it is in fluid communication with the port of the device; (iii) a reservoir located external to the body of the patient, the reservoir in fluid communication with the conduit for receiving fluid from the conduit or delivering fluid to the conduit; and (iv) a source of pressure coupled to the conduit for delivering positive pressure or negative pressure to the device.
24. A system as claimed in claim 23, wherein the source of pressure is capable of delivering negative pressure to the device so that fluid is drained from the treatment site into the device and transferred through the conduit to the reservoir.
25. A system as claimed in claim 24, wherein the reservoir is a waste reservoir for receiving fluid from the device; and further comprising a treatment fluid reservoir located external to the body of the patient arranged to deliver fluid to the device; wherein the source of pressure is configured deliver negative pressure to the device to draw fluids from the treatment reservoir to the treatment site and from the treatment site to the waste reservoir.
26. A system as claimed in claim 23, wherein the source of pressure is capable of delivering positive pressure to the device so that fluid in the reservoir is transferred through the conduit into the device and to the treatment site.
NZ762849A 2018-10-03 Fluid drainage or delivery device for treatment site NZ762849B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762568914P 2017-10-06 2017-10-06
US201862679207P 2018-06-01 2018-06-01
PCT/NZ2018/050134 WO2019070133A1 (en) 2017-10-06 2018-10-03 Fluid drainage or delivery device for treatment site

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Publication Number Publication Date
NZ762849A NZ762849A (en) 2025-07-25
NZ762849B2 true NZ762849B2 (en) 2025-10-29

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