In various embodiments, a device is provided comprising a balloon configured to expand to an expanded state in response to introduction of a fluid at a first pressure, wherein the fluid perfuses through the balloon above a second pressure, the second pressure being the same or greater than the first pressure. In various embodiments, a method comprising fabricating a balloon configured to expand to an expanded state in response to introduction of a fluid at a first pressure, wherein the fluid perfuses through the balloon above a second pressure, the second pressure being at or greater than the first pressure, disposing the balloon on an elongate member having a lumen, placing the lumen in fluid communication with an interior volume of the balloon.

The present application discloses a polyvinyl alcohol composition, as well as a preparation method and polyvinyl alcohol medical catheter containing thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment.

The present application discloses a polyvinyl alcohol composition, as well as a preparation method and polyvinyl alcohol medical catheter containing thereof, wherein raw materials include the following components: 60-90 parts of polyvinyl alcohol; 0.1-3 parts of glutaraldehyde; and the polyvinyl alcohol composition is made by mixing the polyvinyl alcohol in molten state with the glutaraldehyde in an acidic environment.

The invention provides an intermittent catheter comprising a hollow polymeric tubular body comprising a base polymer and a layer comprising a lubricious additive on or comprising a surface of the body, wherein the lubricious additive comprises an amphiphilic molecule.

To reinforce a layer that is configured to contain fluororesin while suppressing the thickness of the entire medical tube. A medical tube includes a first resin layer that is configured to contain fluororesin, and a second resin layer that is configured to coat an outer peripheral surface of the first resin layer and containing polyimide resin. The thickness of the second resin layer is larger than 0 μm but not exceeding 15 μm.

To reinforce a layer that is configured to contain fluororesin while suppressing the thickness of the entire medical tube. A medical tube includes a first resin layer that is configured to contain fluororesin, and a second resin layer that is configured to coat an outer peripheral surface of the first resin layer and containing polyimide resin. The thickness of the second resin layer is larger than 0 μm but not exceeding 15 μm.

A medical tube is provided. The medical tube includes a hollow body and a gas conduit formed inside the hollow body for transporting gases. A material of the hollow body is a thermoplastic polyester elastomer. Based on a total weight of the thermoplastic polyester elastomer being 100 wt %, the thermoplastic polyester elastomer includes 50 wt % to 70 wt % of hard segments and 30 wt % to 50 wt % of soft segments.

A multi-sensor system may include a catheter that has lumen, is flexible, is made of a polymer, and has a circular cross section that has an outer diameter of no more than 0.5 cm; and one or more sensors that sense multiple characteristics of material flowing within the lumen, including at least two of the following: flow rate, pressure, and composition of the material. A multi-sensor system may include a catheter that has lumen, is flexible, is made of a polymer, and has a circular cross section that has an outer diameter of no more than 0.5 cm; and one or more sensors that sense multiple characteristics of material flowing within the lumen, including at least two of the following: flow rate, pressure, and composition of the material.

The invention relates to a composition comprising: (A) a propylene-based polymer which is a propylene homopolymer or a propylene copolymer consisting of at least 90 wt % of propylene monomer units and at most 10 wt % of ethylene monomer units and/or an α-olefin monomer units having 4 to 10 carbon atoms, (B) a terpolymer of propylene, an α-olefin having 4 to 10 carbon atoms and ethylene and (C) a copolymer of ethylene and an α-olefin having 4 to 10 carbon atoms, wherein the copolymer (C) has a density of at least 0.880 g/cm.sup.3, wherein the amount of the propylene-based polymer (A) is at least 60 wt % with respect to the total composition.

A medical shaft includes a shaft including at least one lumen extending in a longitudinal direction; a core member disposed in the lumen, the core member extending along the longitudinal direction; and a tubular member disposed on an outer side of the core member in a same lumen as a lumen in which the core member is disposed, the tubular member having a length, in the longitudinal direction, which is less than a length of the core member, wherein in the lumen, an area of a cross-section of the lumen on a plane perpendicular to the longitudinal direction in a portion in which the tubular member is disposed is greater than an area of a cross section of the lumen on a plane perpendicular to the longitudinal direction in a portion in which the tubular member is not disposed.