Abstract: Disclosed is a dilating incision device, which relates to a surgical tool and includes an outer shell, a dilating element and an incision assembly. The dilating element that is arranged at one end of the outer shell and communicated with the inside of the outer shell is used to drill into and expand a stenosis segment of the pancreatic or biliary duct or a puncture path between lumens of the digestive tract. A sliding groove is formed in a side wall of the outer shell, by which the inner cavity of the outer shell is communicated with the outside. The incision assembly includes an incision knife arranged in the outer shell and a sliding handle housing the outer shell. An intercommunicating hole is formed in one end of the dilating element, by which the inner cavity of the dilating element is communicated. with the outside.

Abstract: An air bag packaging arrangement includes an air bag and an air valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a check sealing film overlapped between proximal portions of the first and second sealing films to define an air inflating channel between the first sealing film and the check sealing film, and a backflow prevention channel between the check sealing film and the second sealing film. In case of air leakage, the air is guided to flow to the backflow prevention channel for creating a supplemental air pressure to further seal and close the air inflating channel, so as to make up a deficient sealing effect of the first and second sealing films.

Abstract: An air bag packaging arrangement adapted to have a self-adhesive checking valve includes an air bag and an air valve which is the self-adhesive checking valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a check sealing film overlapped between proximal portions of the first and second sealing films to define an air inflating channel between the first sealing film and the check sealing film, and a backflow prevention channel between the check sealing film and the second sealing film. In case of air leakage, the air is guided to flow to the backflow prevention channel for creating a supplemental air pressure to further seal and close the air inflating channel, so as to make up a deficient sealing effect of the first and second sealing films.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air bag packaging arrangement adapted to have a self-adhesive checking valve includes an air bag and an air valve which is the self-adhesive checking valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a check sealing film overlapped between proximal portions of the first and second sealing films to define an air inflating channel between the first sealing film and the check sealing film, and a backflow prevention channel between the check sealing film and the second sealing film. In case of air leakage, the air is guided to flow to the backflow prevention channel for creating a supplemental air pressure to further seal and close the air inflating channel, so as to make up a deficient sealing effect of the first and second sealing films.

Abstract: An air bag packaging arrangement includes an air bag and an air valve. The air bag includes first and second cell overlapped layers to form an air chamber and a valve opening. The air valve includes first and second sealing films overlapped between the first and second cell layers, and a check sealing film overlapped between proximal portions of the first and second sealing films to define an air inflating channel between the first sealing film and the check sealing film, and a backflow prevention channel between the check sealing film and the second sealing film. In case of air leakage, the air is guided to flow to the backflow prevention channel for creating a supplemental air pressure to further seal and close the air inflating channel, so as to make up a deficient sealing effect of the first and second sealing films.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each consisting of at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air packaging device includes two layers of thermoplastic films, which form a sealable space where air is filled after first and second steps of heat-sealing process. The sealable space includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one one-way valve each including at least two layers of plastic films. At least two one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at less important locations in order to reduce the volumetric size and, hence, reduce the shipping cost.

Abstract: An air packaging device comprises two layers of thermoplastic films, which form a sealable space where air is fulfilled after a 1st and a 2nd steps of heat-sealing process, includes a number of independent sealed air chambers and a main air passage channel. The main channel has an air inlet. Each sealed air chamber is connected with the main channel by at least one of one-way valves each consists of at least two layers of plastic films. At least two of one-way valves are installed inside of the air chambers. This air packaging device increases the cushioning protection where the protection is most needed, but can reduce air chamber dimension at the less important location in order to reduce the volumetric size and hence reduce the shipping cost.