Abstract: The present invention relates to a negative pressure wound therapy device, system and method. The negative pressure wound therapy device is connected with a dressing, and comprises a housing, a control circuit board, a pump, and an aspiration conduit. The pump generates negative pressure. The pump may comprise a voltage-actuated deformation element (such as piezoelectric vibration element) to push fluid from an aspiration end to a discharge end. The aspiration conduit has a pump end and a dressing end. The pump end is fluidly connected to the aspiration end of the pump, and the dressing end is fluidly connected to the dressing used for covering a wound. The control circuit board is disposed in the housing, controls the pump to generate the negative pressure in the aspiration conduit, and applies negative pressure to the wound covered by the dressing via the aspiration conduit.

Abstract: The present invention relates to a negative pressure wound therapy device, system and method. The negative pressure wound therapy device is connected with a dressing, and comprises a housing, a control circuit board, a pump, and an aspiration conduit. The pump generates negative pressure. The pump may comprise a voltage-actuated deformation element (such as piezoelectric vibration element) to push fluid from an aspiration end to a discharge end. The aspiration conduit has a pump end and a dressing end. The pump end is fluidly connected to the aspiration end of the pump, and the dressing end is fluidly connected to the dressing used for covering a wound. The control circuit board is disposed in the housing, controls the pump to generate the negative pressure in the aspiration conduit, and applies negative pressure to the wound covered by the dressing via the aspiration conduit.

Abstract: A suction disc is configured for abutting against a dressing covering over a wound. The suction disc includes a base plate, a case, a negative pressure, a first sensing device and a second sensing device. The base plate has a first surface and a second surface opposite to each other. The first surface abuts against the dressing. The base plate has a first opening and a second opening respectively communicating with the first surface. The case has a first chamber and a second chamber. The case communicates with the second surface. The first chamber communicates with the first opening. The second chamber communicates with the second opening. The negative pressure device communicates with the second chamber. The negative pressure device provides a negative pressure to the second chamber. The first sensing device communicates with the first chamber. The second sensing device communicates with the second chamber.

Abstract: The present invention relates to a negative pressure wound therapy device, system and method. The negative pressure wound therapy device is connected with a dressing, and comprises a housing, a control circuit board, a pump, and an aspiration conduit. The pump generates negative pressure. The pump may comprise a voltage-actuated deformation element (such as piezoelectric vibration element) to push fluid from an aspiration end to a discharge end. The aspiration conduit has a pump end and a dressing end. The pump end is fluidly connected to the aspiration end of the pump, and the dressing end is fluidly connected to the dressing used for covering a wound. The control circuit board is disposed in the housing, controls the pump to generate the negative pressure in the aspiration conduit, and applies negative pressure to the wound covered by the dressing via the aspiration conduit.

Abstract: A suction disc is configured for abutting against a dressing covering over a wound. The suction disc includes a base plate, a case, a negative pressure, sensing device and a second sensing d evice. The base plate has a first surface and a second surface opposite to each other. The first surface abuts against the dressing. The base plate has a first opening and a second opening respectively communicating with the first surface. The case has a first chamber and a second chamber. The case communicates with the second surface. The firs chamber communicates with the first opening. The second chamber communicates with the second opening. The negative pressure device communicates with the second chamber. The negative pressure device provides a negative pressure to the second chamber. The first sensing device communicates with the first chamber. The second sensing device communicates with the second chamber.

Abstract: An oxide semiconductor thin-film transistor, comprising: a source electrode and a drain electrode formed on a substrate; a composite semiconductor active layer formed between the source electrode and the drain electrode; a gate dielectric layer formed on the source electrode, the composite semiconductor active layer and the drain electrode; and a gate electrode formed on the gate dielectric layer and corresponding to the composite semiconductor active layer; wherein the composite semiconductor active layer comprises a low carrier-concentration first oxide semiconductor layer and a high carrier-concentration second oxide semiconductor layer.

Abstract: An oxide semiconductor thin-film transistor, comprising: a source electrode and a drain electrode formed on a substrate; a composite semiconductor active layer formed between the source electrode and the drain electrode; a gate dielectric layer formed on the source electrode, the composite semiconductor active layer and the drain electrode; and a gate electrode formed on the gate dielectric layer and corresponding to the composite semiconductor active layer; wherein the composite semiconductor active layer comprises a low carrier-concentration first oxide semiconductor layer and a high carrier-concentration second oxide semiconductor layer.