A manually-actuated, constant reduced-pressure apparatus for use with a reduced-pressure system for treating tissue at a tissue site includes a flexible, collapsible member that is operable to move between a compressed position and an extended position. The collapsible member may be disposed between a carrier member and a slider member that move between a compressed position and an extended position. The carrier member and slider member are urged away from each other by a constant-force biasing member, e.g., a constant force coil spring. As the apparatus moves from the compressed position to the extended position, a constant reduced-pressure is generated and delivered to a reduced-pressure port. Methods of manufacturing a manually-actuated, constant reduced-pressure apparatus and methods of treating a tissue site are also provided.

The present invention provides skin grafting and devices that comprise a systematic approach to the process of skin grafting, i.e., harvesting, post-excision processing and application of donor skin and pre and post-graft treatment of the recipient site.

The present disclosure relates generally to the field of medical treatment and therapy of mammalian tissue. More specifically, it relates to coverings and/or dressings that provide negative pressure at mammalian tissue sites, such as at one or more sites of surgical, non-surgical, and/or traumatic wounds, to promote closure and healing of the wounds. A key embodiment of the disclosed invention entails the use of a dressing that comprises a sponge that is shaped so as to create a vector force inward bringing wound edges together to promote healing, especially upon application of negative pressure. Other key features of the disclosed invention are its simplicity, its low cost, and that it is completely mechanical and lacks the need for any electronic components. The disclosure also relates to devices, systems, kits and methods for providing said negative pressure at said mammalian tissue sites and promote healing.

A bodily fluid collection system includes a reduced pressure treatment unit for providing reduced pressure to a fluid collection system through a canister having a container with an inlet adapted to be fluidly coupled to the fluid collection system, an outlet adapted to be connected to a source of reduced pressure, and an absorptive lamination disposed within the container. The absorptive lamination may be formed from a plurality of absorptive layers and wicking layers interleaved between the absorptive layers that collectively manifold bodily fluids from a tissue site into and throughout the absorptive lamination to trap and collect the bodily fluids. The container expands as the absorptive lamination swells with the bodily fluid being collected.

Disclosed is a canister for a mobile negative pressure wound therapy (NPWT) device, specifically adapted for ensuring prolonged uninterrupted use of the NPWT device. Also disclosed is a corresponding NPWT device that includes the canister.

An apparatus for applying negative pressure to a wound is disclosed. The apparatus can include a housing, a pressure source, a canister, and a controller. The pressure source can be supported by the housing and provide negative pressure via a fluid flow path to a wound dressing positioned over a wound. The canister can collect exudate from the wound. The controller can monitor a parameter indicative of providing negative pressure to the wound dressing with the pressure source, determine from the parameter that the wound is treatable with a canisterless wound therapy apparatus, and output for presentation to a user a notification indicating that the wound is treatable with the canisterless wound therapy apparatus.

A wound treatment appliance is provided for treating all or a portion of a wound. In some embodiments, the appliance comprises an impermeable flexible overlay that covers all or a portion of the wound for purposes of applying a reduced pressure to the covered portion of the wound. In other embodiments, the impermeable flexible overlay comprises suction assistance means, such as channels, which assist in the application of reduced pressure to the area of the wound and removal of exudate from the wound. In other embodiments, the wound treatment appliance also includes a vacuum system to supply reduced pressure to the wound in the area under the flexible overlay. In yet other embodiments, the wound treatment appliance also includes wound packing means to prevent overgrowth of the wound or to encourage growth of the wound tissue into an absorbable matrix comprising the wound packing means. In still other embodiments, the appliance may include a suction drain. In other embodiments, the appliance may include a collection chamber to collect and store exudate from the wound. In yet other embodiments, a suction bulb may be used to provide a source of reduced pressure to an impermeable overlay that covers all or a portion of the wound. Finally, methods are provided for using various embodiments of the wound treatment appliance.

The illustrative embodiments described herein are directed to an apparatus, system, and method for storing liquid from a tissue site. The apparatus may include a drape having an aperture, and a fluid pouch coupled to the drape such that the fluid pouch is in fluid communication with the aperture. In one embodiment, the fluid pouch is operable to transfer reduced pressure to the aperture such that the liquid from the tissue site is drawn into the fluid pouch. The fluid pouch may have a cavity that stores the liquid that is drawn from the tissue site. In another embodiment, the fluid pouch may include at least one baffle. The fluid pouch may also include a fluid channel at least partially defined by the at least one baffle. The fluid channel may be operable to store liquid from the tissue site when reduced pressure is applied through the fluid channel.

A wound-dressing conditioning device (12) for conditioning a wound dressing (14). The device (12) comprises a treatment-fluid flow path (20) and a waste-fluid flow path (22). A pumping means (24) is at the treatment-fluid flow path (20) and the waste-fluid flow path (22). The pumping means (24) can pump treatment fluid along the treatment-fluid flow path (20) pump waste fluid along the waste-fluid flow path (22), and apply negative-pressure condition to the wound dressing (14). The pumping means (24) has a controller to control the treatment fluid pumping, and a monitoring means for monitoring a volume of treatment fluid pumped to the wound dressing (14).

A method for calculating range of motion of a patient's jointed limb includes providing one or more locators at an upper limb of the jointed limb, and one or more of the locators at a lower limb of the jointed limb. A first image of the patient's joint in a fully extended position a second image of the patient's joint in a fully flexed position are captured with an imaging device. The method includes identifying positions of the locators of both the first image and the second image, and determining an extended angle of the patient's joint based on the identified positions of the locators of the first image. The method includes determining a flexed angle of the patient's joint based on the identified positions of the locators of the second image. The method includes determining a range of motion angle based on the extended angle and the flexed angle.