A stoma dilation device that includes a tubular support defining a continuous pathway through the device; an inflatable dilation balloon located on the tubular support, the inflatable dilation balloon including a dilation region forming a first portion of the device and a retention region forming a second portion of the device; and a balloon inflation lumen. The retention region of the balloon is configured to have a diameter upon full, unrestrained inflation that is greater than the diameter of the dilation region.

An internal bolster for use securing a medical device, such as a feeding tube, within a body of a patient is disclosed. In one embodiment, a feeding tube includes an internal bolster, comprising one or more bolster arms that each include a first end hingedly connected to a distal end of the medical device and a free second end. The bolster arms are selectively deployable between a first position wherein the bolster arms are substantially in-line with an axis of feeding tube, and a second position wherein the bolster arms are substantially deflected from the axis of the feeding tube to enable securement of the feeding tube within a stoma or other opening defined in the body. Various means for selectively moving the bolster arms between the first and second positions are disclosed. Related methods of use are also disclosed.

The gastrostomy catheter includes a shaft in which a lumen is provided, a flexible bumper which is provided at a tip of the shaft, and a wire which has elasticity and can bias the bumper in a diameter-increasing direction and restricts deformation of the bumper in a diameter-decreasing direction. At least a portion on a tip side of the wire biases the bumper in the diameter-increasing direction or restricts the deformation of the bumper in the diameter-decreasing direction by the elasticity of the wire in a state in which the wire is disposed in the bumper.