Abstract: Disclosed is an integrated intracavity gas circulation treatment device for a laparoscopic surgery, includes a filtering unit and a driving pump unit. The filtering unit is provided with an air inlet channel, the driving pump unit is installed in the filtering unit, and communicated with the filtering unit; and the driving pump unit is provided with an air exhausting channel. The device is capable of realizing integrated installation of the filtering unit and the driving pump unit, skillful in design, compact in structure, the device is simply and conveniently used and operated by a medical worker. In the whole surgery process, stability of an air pressure in the abdominal cavity is high, an effect of gas circulation filtering is good, surgery efficiency and quality are improved, and it is guaranteed that a contaminated and non-sterilizable work piece may not be repeatedly used, so real zero infection is achieved.

Abstract: The present invention relates to the wireless transmission technology. Disclosed is a one-to-many 2.4G wireless computer peripheral communication device, which includes a 2.4G wireless USB transmit-receive adapter connected with a USB interface of an intelligent appliance and more than one 2.4G wireless computer peripheral cooperated with the USB transmit-receive adapter. Also disclosed is a transmission method of one-to-many 2.4G wireless computer peripheral communication device, which includes the following steps: (1) presetting an occupied time period of each 2.4G wireless computer peripheral; (2) selecting a channel; (3) establishing a channel; and (4) transmitting data. The present invention enables a USB transmit-receive adapter to communicate with more than one peripheral, and has the advantages that the wireless signal is steady, all the peripherals work at the same time without interfering with each other and it is convenient to add computer peripherals.

Abstract: The present invention relates to the wireless transmission technology. Disclosed is a one-to-many 2.4G wireless computer peripheral communication device, which includes a 2.4G wireless USB transmit-receive adapter connected with a USB interface of an intelligent appliance and more than one 2.4G wireless computer peripheral cooperated with the USB transmit-receive adapter. Also disclosed is a transmission method of one-to-many 2.4G wireless computer peripheral communication device, which includes the following steps: (1) presetting an occupied time period of each 2.4G wireless computer peripheral; (2) selecting a channel; (3) establishing a channel; and (4) transmitting data. The present invention enables a USB transmit-receive adapter to communicate with more than one peripheral, and has the advantages that the wireless signal is steady, all the peripherals work at the same time without interfering with each other and it is convenient to add computer peripherals.