Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising a bridge portion connecting two or more portions of an absorbent layer that facilitates trimming of the wound dressing to suitable sizes. Some embodiments provide for trimming the dressing in a gap between two or more portions of an absorbent layer and sealing the exposed portion of dressing after trimming when the dressing is applied to skin surrounding a wound.

A pressure sensing clip (1) and a system including a bandage (19) for detecting and displaying the pressure applied by a (compression) bandage (19) to a human or animal body in which the pressure sensing clip (1) has an inner bandage penetrating arm (2) and an outer arm (3) hingedly attached to the inner arm (2) at a hinge (4) so that the outer arm (3) is movable between a hingedly closed position with respect to the inner arm (2) and a hingedly open position. The device can be operatively attached to an applied compression bandage, or it can be placed beneath or between the bandage during bandage application so that the bandage covers the sensing part of the device. In the latter application, the ability of the arms of the device to adapt an open configuration allows the bandage to be applied over the inner arm leaving the outer arm to close once the bandage has been applied. The device can receive, store and transmit data to a user.

An improved syndesmosis reduction device has a wrap of elastic material extending a length L from a first end to a second end with an open window or slot positioned in an intermediate portion of the wrap spaced from the ends. The wrap is configured to achieve a reduction of an injured ankle and is facilitated by the elastic nature of the ankle wrap. The reduction is facilitated by circumferentially wrapping the wrap from a leg to a foot or vice versa in a compressive fashion by securing the first end by wrapping and stretching the wrap to the second end. The window or slot is to permit an incision at the ankle for hardware placement without the need to remove the wrap and without loss of the reduction achieved.

An improved syndesmosis reduction device has a wrap of elastic material extending a length L from a first end to a second end with an open window or slot positioned in an intermediate portion of the wrap spaced from the ends. The wrap is configured to achieve a reduction of an injured ankle and is facilitated by the elastic nature of the ankle wrap. The reduction is facilitated by circumferentially wrapping the wrap from a leg to a foot or vice versa in a compressive fashion by securing the first end by wrapping and stretching the wrap to the second end. The window or slot is to permit an incision at the ankle for hardware placement without the need to remove the wrap and without loss of the reduction achieved.

A dressing for treating a wound on a digit includes a digit contact layer configured to substantially prevent adherence of the dressing to the wound and an antimicrobial layer coupled to a wound-facing side of the digit contact layer. The antimicrobial layer includes an antimicrobial substance. A first roll is coupled to a non-wound-facing side of the digit contact layer and unrollable to cover the digit, the digit contact layer, and the antimicrobial layer and a second roll is coupled to the first roll and unrollable to cover the first roll, the digit, the digit contact layer, and the antimicrobial layer.

This invention relates to a multi-layer wound site dressing specifically designed to treat chronic wounds and simultaneously block external pathogens from infecting the wound site from the environment. The said wound dressing comprises five layers; each layer performs a specific functionality in healing and protecting the wound site. The said layers of wound care dressing comprise (i) a permeable non-adherent woven or non-woven membrane in contact with wound site, (ii) a nanofibrous composite layer made of superabsorbent, activated carbon and a polymer (iii) a hydrophobic insulating membrane which is permeable to air with an adhesive edge, (iv) a nanofibrous membrane made of polymer and activated carbon hosting functional germicidal ions, and (v) an air permeable non-woven membrane with adhesive edge. The said layers are compounded by pressing and coating to make a comprehensive multi-layer wound care dressing product.

The present invention relates to a bioink for 3D printing, the preparation method, and the usage. Such bioink is a gel made of -zein, porogen by 0-10% of the weight of zein, ethanol and water. The preparation method consists of: 10-50% zein is dissolved into an aqueous solution containing 40-90% (v/v) of ethanol, then, the porogen by 0-10% of the weight of zein is added, and then, this solution is allowed to stand at 5-95 C. for 1-10 days, or stirred for 30 min-24 hours, and thus, the bioink for 3D printing can be obtained. The conditions applied to prepare such bioink are mild and the method adopted is easy to operate, in addition, the said bioink for 3D printing has good mechanical properties and biocompatibility, which can be applied in the field of biomedicine for preparing tissue engineered substitutes and hemostatic materials by 3D printing at room temperature.

The present invention relates to a sponge dressing for treating wounds comprised of a polymer sponge containing a plurality of antimicrobial dyes with at least one dye being gram positive and at least one other dye being gram negative and a silicon adhesive secured to a sponge surface. The sponge dressing can be exposed initially to gamma radiation and later sterilized by ethylene oxide or alternatively it can be sterilized by ethylene oxide and later irradiated by gamma radiation. The sponge dressing has a morphology characterized by an average pore throat diameter of 0.5-500 m and a porosity ranging from about 60% to about 99.5%. The sponge dressing can also contain at least one biofilm reducing agent, at least one chelating agent and an ionic and non-ionic surfactant.

A first-aid device for controlling a bleeding injury of a limb, said first-aid device comprising, at least in use: an emergency bandage having a blood absorbing portion with a central point, configured for absorbing blood from the injury, and at least one bandage strap connected at least indirectly to the blood absorbing portion and configured for securely mounting the blood absorbing portion to the limb with said blood absorbing portion being positioned over the injury; and a tourniquet having a tourniquet longitudinal axis and attached to the emergency bandage so that, in a plan view of the device, said tourniquet longitudinal axis is spaced from said central point of the emergency bandage to a distance required for limiting blood flow to the injury, said tourniquet having at least one tourniquet strap extending along the tourniquet longitudinal axis and configured for securely mounting the tourniquet to the limb.

Snap band dressing devices and methods are disclosed. The snap band dressing device serves to protect a point of entry from bacteria and other elements found outside the body. For example, the snap band in dressing devices may include a snap band having an elongated open shape and a coiled closed shape, and a layer integral with or coupled to the snap band and configured to elute a fluid to a wound site when the snap band is positioned around the circumferential wound site in the coiled closed shape. Methods are also provided including snapping a snap band in a coiled closed shape about a circumferential wound site and eluting an antimicrobial substance to a wound site when the snap band is positioned around the circumferential wound site in the coiled closed shape.