Gastrostomy feeding apparatus for providing enteral nutrition to a patient via a gastrostomy tract formed in the patient, said apparatus comprising: - a tube defining a feeding lumen having an axis, said tube having first and second opposite ends (30, 34) and being adapted to be positioned in said gastrostomy tract for delivering enteral nutrition to the patient; - an internal bolster connected to the tube generally adjacent the first end of the tube, said internal bolster being adapted to be positioned inside the stomach of the patient; - an external bolster connected to the tube generally adjacent the second end of the tube, said external bolster being adapted to be disposed outside the patient; and characterized by a force-generating device comprising a pair of spring members connected to said external bolster adjacent a periphery of the bolster and generally on opposite sides of the axis, each spring member having a first end connected to the external bolster and an opposite second end adapted to react against the patient for exerting said force, wherein each spring member comprises an axially expansible and contractible spring portion, and a foot portion connected to said spring portion at said second end of the spring member for contact with the patient, each spring member being operable when the internal bolster is positioned against a wall of the stomach to exert a force in an axial direction with respect to the tube tending to hold the internal bolster in pressure contact with the stomach wall, each spring member having a length in said axial direction which varies automatically in response to a change in the length of the gastrostomy tract to maintain said pressure contact without manual adjustment of the apparatus. - a tube defining a feeding lumen having an axis, said tube having first and second opposite ends (30, 34) and being adapted to be positioned in said gastrostomy tract for delivering enteral nutrition to the patient; - an internal bolster connected to the tube generally adjacent the first end of the tube, said internal bolster being adapted to be positioned inside the stomach of the patient; - an external bolster connected to the tube generally adjacent the second end of the tube, said external bolster being adapted to be disposed outside the patient; and characterized by a force-generating device comprising a pair of spring members connected to said external bolster adjacent a periphery of the bolster and generally on opposite sides of the axis, each spring member having a first end connected to the external bolster and an opposite second end adapted to react against the patient for exerting said force, wherein each spring member comprises an axially expansible and contractible spring portion, and a foot portion connected to said spring portion at said second end of the spring member for contact with the patient, each spring member being operable when the internal bolster is positioned against a wall of the stomach to exert a force in an axial direction with respect to the tube tending to hold the internal bolster in pressure contact with the stomach wall, each spring member having a length in said axial direction which varies automatically in response to a change in the length of the gastrostomy tract to maintain said pressure contact without manual adjustment of the apparatus.