105 results about "Negative-pressure wound therapy" patented technology

A biocompatible wound dressing comprised of a pad for insertion substantially into a wound site and a wound drape for sealing enclosure of the foam pad at the wound site. The pad, comprised of a foam or other like material having relatively few open cells in contact with the areas upon which cell growth is to be encouraged so as to avoid unwanted adhesions, but having sufficiently numerous open cells so that drainage and negative pressure therapy may continue unimpaired, is placed in fluid communication with a vacuum source for promotion of fluid drainage, as known in the art. The pad is further comprised of an ultra-low density fused-fibrous ceramic, or a bioabsorbable branched polymer, or cell growth enhancing matrix or scaffolding.

A biocompatible wound dressing comprised of a pad for insertion substantially into a wound site and a wound drape for sealing enclosure of the foam pad at the wound site. The pad, comprised of a foam or other like material having relatively few open cells in contact with the areas upon which cell growth is to be encouraged so as to avoid unwanted adhesions, but having sufficiently numerous open cells so that drainage and negative pressure therapy may continue unimpaired, is placed in fluid communication with a vacuum source for promotion of fluid drainage, as known in the art. The pad is further comprised of an ultra-low density fused-fibrous ceramic, or a bioabsorbable branched polymer, or cell growth enhancing matrix or scaffolding.

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.

Embodiments disclosed within herein relate to a wound dressing, suitable for use in negative pressure wound therapy, comprising a body of porous material, the body of porous material comprising a plurality of cuts which provide regions of flexibility within the body. Further embodiments relate to methods of manufacturing and method of use of such wound dressings. In addition, the wound dressing can comprise a retaining mechanism removably coupled to the material and configured to retain the material in the expanded conformation.

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.

Disclosed herein are systems and methods for providing reduced or negative pressure, and more particularly cyclical reduced pressure, to treat a wound. The system can include a wound dressing, a fluid collection container, a suction source, filters, and conduits. In addition, the system can include a control device and sensors. The sensors may be configured to monitor certain physiological conditions of a patient such as temperature, pressure, blood flow, blood oxygen saturation, pulse, cardiac cycle, and the like. Application of cyclical reduced pressure between two or more values below atmospheric pressure may be synchronized with the physiological conditions monitored by the sensors. Certain embodiments of the system utilize an air reservoir and one or more valves and pressure sensors or gauges to allow for rapid cycling of the level of reduced pressure within the wound dressing between two or more reduced pressure values.

An integrated negative pressure bandage is constructed with a non-woven polyurethane matrix pad secured on the outside surface to a sheet of polyurethane film formed with an outer adhesive boundary to establish a seal against the skin of the patient around the wound site. The inner surface of the non-woven matrix pad is covered with a silver nitrate mesh to promote healing of the wound site when the bandage is placed on top of the wound. A drain tube is contained within the non-woven matrix pad for connection with a source of negative pressure to draw the fluids and exudates from the wound for removal to a canister that is located remotely from the bandage. Contoured versions of the integrated bandage are provided for use on portions of the human body that present difficult locations for applications of negative pressure therapy, including the toes, heel, limbs, and sacral region.

The invention discloses a medical vacuum negative-pressure therapeutic system based on cloud management. The medical vacuum negative-pressure therapeutic system comprises a negative-pressure wound therapeutic system, patient home terminals, a server cloud system and other terminal devices such as different levels of medical institutions, insurance companies and service providers, wherein the patient home terminals, the server cloud system and the other terminal devices conducts data communication with the negative-pressure wound therapeutic system. According to the medical vacuum negative-pressure therapeutic system, cloud management and interconnection and communication based on the cloud management are adopted, patient home care and remote medical operation can be realized, so an outpatient with a wound needing to be subjected to negative-pressure therapy can receive wound treatment conveniently at home, and medical workers and the service providers can remotely monitor the clinical condition of the patient and the running condition of equipment in real time; meanwhile, the patient can receive treatment and diagnosis at a high-grade hospital and receive general dressing change treatment at a low-grade hospital, and grading medical therapy is achieved; accordingly, the medical care efficiency is improved, the use and maintenance efficiency of the equipment is improved, the living quality of the patient is improved, and the therapeutic effect is improved.

Disclosed herein are systems and methods for safe operation of a wound treatment apparatus with electronic components integrated on or within a wound dressing. In some embodiments, the electronic components include a power source, an isolation circuit, a controller, a capacitor, and a negative pressure source. The isolation circuit provides multiple activation states with at least one state preventing application of power to the other electronic components capable of storing electrical energy, thereby providing a safe operation of the apparatus. For example, sterilization of the apparatus can be performed safely.

Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a wound dressing apparatus can comprise a wound contact layer, a first area and a second area over the wound contact layer, and a cover layer configured to cover the wound contact layer, the first area, and the second area. The first area can comprise a spacer layer and an absorbent layer over the spacer layer. The second area can comprise an electronics cassette or cradle comprising a negative pressure source and/or electronic components.

Disclosed embodiments relate to apparatuses and methods for wound treatment. A wound dressing apparatus can comprises a wound contact layer, at least one absorbent layer, an electronics unit comprising a negative pressure source unit, and a cover layer. The electronics unit can comprise a plurality of sensors positioned on a printed circuit board and an inlet protection mechanism of the negative pressure source unit comprises a first recess in fluid communication with a first sensor and the outlet or exhaust mechanism negative pressure source unit comprises a second recess in fluid communication with a second sensor.

Disclosed are methods for using open-celled polymeric foam wound dressings made from high internal phase emulsions (HIPEs). The wound dressings have a high capillary pressure and may reduce or obviate the need for treatments like negative pressure wound treatment (NPWT). Also disclosed are structures for HIPE foam wound dressings. The HIPE foam wound dressings typically include at least two layers of HIPE foam with different, but homogeneous, average cell sizes. The average cell sizes form a cell size gradient, with cell size typically decreasing from the front or face layer of foam toward the back layer of foam. The back layer of foam may be a collapsed layer, while the front layer or layers may be expanded. Compared with HIPE foams for other absorbent applications, the wound dressing foams may be higher in hydratable salts and higher in initial moisture levels.

Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound contact layer, an absorbent layer over the wound contact layer, the absorbent layer comprising one or more apertures, a cover layer configured to cover and form a seal over the wound contact layer and the absorbent layer, and an electronics assembly comprising a negative pressure source. A portion of the cover layer overlying the one or more apertures in the absorbent layer can be configured to be compressed within the aperture in the absorbent layer when negative pressure is applied to the wound dressing apparatus. The compressed cover layer can indicate a level of negative pressure below the cover layer. In some embodiments, the wound dressing apparatus can comprise an indicator material layer and a cover layer configured to cover and form a seal over the wound contact layer and the indicator material layer. The indicator material layer can be configured to protrude relative to a surrounding surface of an upper surface of the wound dressing apparatus when negative pressure is applied to the wound dressing apparatus and the protruding indicator material layer indicates a level of negative pressure below the cover layer.

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.

The invention discloses a negative-pressure wound treatment system. The negative-pressure wound treatment system is characterized by further comprising a data collection unit, a data processing unit, a data storage unit and a user interaction unit. The data collection unit is used for collecting treatment data, and the treatment data comprise data of patient or data of medical staff. The data processing unit is used for processing the treatment data. The data storage unit is used for storing the treatment data or data processed by the data processing unit. The user interaction unit is used for providing an interactive interface allowing operators to use. The negative-pressure wound treatment system can store various data in the wound treatment process of a patient so that the medical staff can examine the healing process of a wound at any time, and bodily injury, caused by incorrect treatment or incorrect treatment execution methods, to the patient can be avoided.

The system of the present invention uses inputs from EKG and PPG signals of blood flow at the end of the limb. To maximizes the PPG signal the system opens a series of valves in sequence, to inflate corresponding sequentially located cells wrapped circumferentially around the limb so that the most proximal cell inflates first, and its neighbor is inflated next. Fluid under pressure is supplied to the valves so that when opened, fluid enters the air cells and inflates them, compressing the underlying limb sequentially, from proximal to distal, to push blood downstream. Negative pressure wound treatment is used in combination with compression or separately therefrom.