A parison for being blow molded into a medical balloon for a catheter includes a first tubular layer having a functional modification and a second tubular layer adapted for bonding with the first tubular layer to form the blow molded balloon. Related methods are also disclosed.

A parison for being blow molded into a medical balloon for a catheter includes a first tubular layer having a functional modification and a second tubular layer adapted for bonding with the first tubular layer to form the blow molded balloon. Related methods are also disclosed.

A multi-layer bladder includes: a first bladder layer; a mask including a plurality of apertures; a second bladder layer bonded to the first bladder layer within the apertures in the mask and where the mask is not present between the first and second bladder layers, where the mask is configured to prevent bonding of the second bladder layer to the first bladder layer where the mask is present; and a fluid channel that is located between the first and second bladder layers and that extends to the mask from an outer edge of the multi-layer bladder.

The invention relates to a non-crosslinked natural rubber latex composition for an inflatable stopper comprising a homogeneous mixture of: a) natural rubber latex; b) a surfactant; c) an amine based chemical antiozonant; d) possibly ammonia and preferably e) single or double wall electrically conductive nanotubes. The invention furthermore relates to an ozone resistant inflatable stopper comprising non-crosslinked natural rubber latex and fiber reinforcement, the rubber having an ozone resistance according to ISO 1431/1 at 50 pphm concentration ozone at 23±2° C., for the time frame of 48 hours, atmospheric humidity of 55% and strain static exposure of 20% and preferably a surface resistivity lower than 100 GΩ according to DIN EN 60079-32-2 and DVGW G 5621-3 (VP) measured at 1000 V and a maximum relative humidity of 30%.

The invention relates to a non-crosslinked natural rubber latex composition for an inflatable stopper comprising a homogeneous mixture of: a) natural rubber latex; b) a surfactant; c) an amine based chemical antiozonant; d) possibly ammonia and preferably e) single or double wall electrically conductive nanotubes. The invention furthermore relates to an ozone resistant inflatable stopper comprising non-crosslinked natural rubber latex and fiber reinforcement, the rubber having an ozone resistance according to ISO 1431/1 at 50 pphm concentration ozone at 23±2° C., for the time frame of 48 hours, atmospheric humidity of 55% and strain static exposure of 20% and preferably a surface resistivity lower than 100 GΩ according to DIN EN 60079-32-2 and DVGW G 5621-3 (VP) measured at 1000 V and a maximum relative humidity of 30%.

A sport ball including a bladder enclosing a volume of gas. The sport ball further includes a casing including a casted material, wherein the casing encloses the bladder.

Introduced here are pressure-mitigation apparatuses for mitigating the pressure applied to a human body by the support surface of an object. The pressure-mitigation apparatus can include a series of chambers that can be individually controlled to vary the pressure therein. By varying the chamber pressure, the main point of pressure applied by the support surface to the human body may be moved across the surface of the human body. An attachment apparatus may be used to securely adhere the pressure-mitigation apparatus to the support surface.

Introduced here are pressure-mitigation apparatuses for mitigating the pressure applied to a human body by the support surface of an object. The pressure-mitigation apparatus can include a series of chambers that can be individually controlled to vary the pressure therein. By varying the chamber pressure, the main point of pressure applied by the support surface to the human body may be moved across the surface of the human body. An attachment apparatus may be used to securely adhere the pressure-mitigation apparatus to the support surface.

The disclosed technology includes an internal support structure for providing structural stability to an inflated air mattress. The internal support structure can include a loop of material and attachment strips to attach the loop to the top and bottom panels. The internal support structure can also include attachment strips to attach the ends of the loop of material together to complete the loop. The air mattress can include a plurality of internal support structures.

The present disclosure provides a luminous ball and relates to the technical field of ball products. The luminous ball includes a bladder and an outer cover. The bladder is provided with a plurality of first fixing blocks therein. A side of each of the plurality of first fixing blocks is hinged with a telescopic device. Output ends of the telescopic devices are hinged with a gravity ball. The gravity ball is provided with a first rectangular slot therein. According to the present disclosure, one side of the first fixing block is hinged with a telescopic device, such that during the movement of the ball, the gravity ball can expand and retract, and the movement of the gravity ball is facilitated. Through the hinging the telescopic device with the first fixing block and the gravity ball, the movement of the gravity ball in any direction inside the bladder is facilitated. A stopper between a first rectangular slot and a retaining block can buffer a first circular opening to a certain extent during the movement of the gravity ball. The structure of this product greatly improves the water resistance, and the battery can be replaced.