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EP-4440523-B1 - WOUND CLOSURE SYSTEM HAVING MICROCANNULAIC PATHWAYS

EP4440523B1EP 4440523 B1EP4440523 B1EP 4440523B1EP-4440523-B1

Inventors

  • QUINTERO, JULIAN
  • KRIKSUNOV, LEO
  • TANNHAUSER, ROBERT J.

Dates

Publication Date
20260506
Application Date
20231121

Claims (12)

  1. An apparatus (100), comprising: (a) a cannula (142) configured to establish fluid communication with a suction source (140); and (b) a wound closure patch (102) dimensioned to cover a wound (W) in skin, wherein the wound closure patch (102) is configured to receive a topical adhesive (54) to thereby adhere to the skin and form a microbial barrier over the wound (W), wherein the wound closure patch (102) defines a channel (108), wherein the wound closure patch (102) comprises: (i) a top surface (104), (ii) a bottom surface (106) defining at least one opening (110) in fluid communication with the channel (108), wherein the channel (108) is interposed between the top surface (104) and the bottom surface (106), and (iii) a fluid coupling section (114) in fluid communication with the channel (108), wherein the fluid coupling section (114) is configured to couple with the cannula (142) to thereby establish fluid communication between the cannula (142), the channel (108), and the at least one opening (110) defined by the bottom surface (106); and wherein the wound closure patch (102) further defines at least one topical adhesive receiving pore (112) that extends from the top surface (104) to the bottom surface (106).
  2. The apparatus (100) of claim 1, wherein the fluid coupling section (114) further comprises a sealed fluid coupling section.
  3. The apparatus (100) of any preceding claim, wherein the wound closure patch (102) extends from a proximal end toward a distal end.
  4. The apparatus (100) of claim 3, wherein the fluid coupling section (114) is located at the proximal end of the wound closure patch (102).
  5. The apparatus (100) of claims 3 or 4, wherein the channel (108) extends longitudinally from the proximal end toward the distal end.
  6. The apparatus (100) of any preceding claim, wherein the top surface (104) comprises a blister pack (230) filled with an agent (232).
  7. The apparatus (100) of claim 6, wherein the blister pack (230) is configured to rupture to thereby distribute the agent (232) into the channel (108).
  8. The apparatus (100) of claim 7, wherein the agent (232) comprises a therapeutic fluid.
  9. The apparatus (100) of any preceding claim, further comprising a second cannula (144) wherein the wound closure patch (102) comprises a second fluid coupling section (614) in fluid communication with the channel (108) and the second cannula.
  10. The apparatus of claim 9, wherein the second cannula is configured to establish fluid communication with a fluid reservoir (146).
  11. The apparatus of any preceding claim, further comprising a suctions distribution member (120) configured to abut against the bottom surface (106) of the wound closure patch such that the suction distribution member (106) is interposed between the skin and the wound closure patch (102).
  12. The apparatus (100) of claim 11, wherein the bottom surface (106) of the wound closure patch defines a plurality of openings (110) and wherein the suction distribution member (120) comprises an open cell sponge material.

Description

BACKGROUND A wound closure system (also referred to as a skin closure system) may be used at the conclusion of a surgical procedure on a patient to close a wound (e.g., a surgical incision) that was formed in the patient's skin for accessing a target anatomical structure. By way of example, wound closure systems may include components such as sutures, substrates, and/or liquid topical skin adhesives that are applied by a surgeon to approximate the edges of the wound and, in some cases, form a stable and protective layer over the wound that promotes efficient healing. In some instances, one or more components of the applied wound closure system may be absorbed by the patient during the healing process. Following healing of the wound, remaining components of the wound closure system may be removed from the skin by a surgeon, and/or they may automatically separate from the skin such that they may be discarded by the patient. While various wound closure systems and associated components and methods have been made and used, it is believed that no one prior to the inventors has made or used the invention described in the appended claims. US 2018/0010025 A1 provides a curable composition for use in wound care wherein, when dispensed into a location about a wound dressing, said wound dressing overlying a wound site and skin thereabout, said dispensing being so as to intimately contact and overlie an edge of said dressing and skin about said edge, the composition cures in contact with said edge and skin at 32° C. to an elastomer exhibiting zero or low tack at a time in the range from 0.5 to less than 30 minutes. US 2021/0137746 A1 provides a multi-action wound dressing for accelerated wound healing by means of multi-therapeutic action which comprises a porous sheet (101); two flexible sheets (102) having a first sheet (103) and a second sheet (104) attached to each other; multichannel conduits (105) or a plurality of single channel conduits; multichannel tubes (106), side adhesive tapes (107) and an optional wound contact layer (108). US 2014/0031735 A1 provides occlusive tissue dressings and methods including an elastomeric drape and a liquid component, at least partially crosslinked at least after one of drying and curing, suitable for application at a dressing-to-skin interface in order to create a substantially air-tight seal. US 2016/0000611 A1 provides devices, systems and methods related to advanced wound therapy dressings. Specific embodiments in the document are optimized for use with mobile continuous diffusion of oxygen therapy systems for the localized delivery of oxygen to damaged and healing tissues. Exemplary embodiments in the document may utilize a conduit to deliver therapeutic fluids, including for example oxygen, whereby the conduit comprises a plurality of apertures or perforations. US 2002/0161346 A1 provides wound dressing member for use in a vacuum bandage connected to a vacuum source. The wound dressing member is also provided for use with a wound having a wound surface. The wound dressing member includes a wound facing surface adapted to be in contact with and generally conform to the wound surface and a plurality of discrete holes formed in the wound facing surface. The member further includes a port configured to communicate with the vacuum source and with each hole formed in the wound facing surface. WO 2021/069290 A1 provides a drape for use in a negative pressure wound therapy (NPWT). The drape comprises a cover layer, a spacer layer, and a wound contact layer. The drape further comprises a support layer and a reinforcement member. A negative pressure wound therapy (NPWT) apparatus, such as a suction adapter or a wound dressing may be coupled to the drape applied on a wound. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and, together with the description given below, serve to explain the principles of the present invention. Figures 1 to 3F depict wound closures without cannula and are therefore not part of the claimed invention. FIG. 1 depicts a perspective view of an example of a wound closure system that includes a wound closure device, an adhesive applicator, and an adhesive spreader;FIG. 2 depicts a disassembled perspective view of the wound closure device of FIG. 1, showing a mesh layer, a pressure sensitive adhesive layer, and a removable backing layer;FIG. 3A depicts a perspective view of the wound closure device of FIG. 1 aligned longitudinally with a wound in the skin of a patient, showing a central section of the backing layer having been removed;FIG. 3B depicts a perspective view of the wound closure device of FIG. 1 applied to the patient's skin over the wound to approximate the edges of the wound;FIG. 3C depicts a perspective view of the wound closure device of FIG. 1 applied to the patient's skin over the wound, showing remaining sections of the b