Negative pressure wound closure device
First Claim
Patent Images
1. A negative pressure wound closure device, comprising:
- a wound filler material that is configured to be positioned within a wound opening such that the wound filler material preferentially contracts along at least a first direction relative to a second direction upon application of a negative pressure to the wound filler material; and
a pad configured to be positioned beneath the wound filler material, the pad configured to extend outward beyond an outer perimeter of the wound filler material and configured to be positioned beneath a fascia layer.
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Abstract
The present invention relates to a negative pressure wound closure system and methods for using such a system. Preferred embodiments of the invention facilitate closure of the wound by preferentially contracting to provide for movement of the tissue. Preferred embodiments can utilize tissue grasping elements to apply a wound closing force to the tissue.
345 Citations
23 Claims
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1. A negative pressure wound closure device, comprising:
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a wound filler material that is configured to be positioned within a wound opening such that the wound filler material preferentially contracts along at least a first direction relative to a second direction upon application of a negative pressure to the wound filler material; and a pad configured to be positioned beneath the wound filler material, the pad configured to extend outward beyond an outer perimeter of the wound filler material and configured to be positioned beneath a fascia layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of closing a wound, comprising:
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inserting a wound closure device relative to a wound opening, the wound closure device comprising a collapsible filler material; extending a pad outward beyond an outer perimeter of the collapsible wound filler, the pad positioned beneath a fascia layer; and applying a negative pressure to the wound closure device to collapse the filler material and displace the tissue at a wound margin to facilitate closure of the wound. - View Dependent Claims (18, 19, 20)
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21. A negative pressure wound closure device, comprising:
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a wound filler material that is configured to be positioned within a wound opening such that the wound filler material preferentially contracts along at least a first direction relative to a second direction upon application of a negative pressure to the wound filler material; a sensor system mounted to the wound filler material configured to measure an amount of force exerted on a tissue; and wherein the sensor system is configured to measure an amount of force on tissue located around the peripheral wall of the wound opening.
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22. A negative pressure wound closure device, comprising:
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a wound filler material that is configured to be positioned within a wound opening such that the wound filler material preferentially contracts along at least a first direction relative to a second direction upon application of a negative pressure to the wound filler material; a sensor system mounted to the wound filler material configured to measure an amount of force exerted on a tissue; and wherein the sensor system is configured to measure the amount of lateral force exerted on the tissue.
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23. A negative pressure wound closure device, comprising:
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a wound filler material that is configured to be positioned within a wound opening such that the wound filler material preferentially contracts along at least a first direction relative to a second direction upon application of a negative pressure to the wound filler material; a sensor system mounted to the wound filler material configured to measure an amount of force exerted on a tissue; a tissue anchor configured to attach the wound filler material to a wound margin of the wound opening; and wherein the sensor system comprises a sensor that measures lateral force applied to tissue by the tissue anchor.
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Specification