Gastrostomy catheter, insertion jig set, insertion jig and gastrostomy catheter set
AssigneesSumitomo Bakelite Co., Ltd., Yutaka Suzuki
InventorsHiroyuki Fukuda, Kiyotaka Arikawa, Minoru Suzuki, Yutaka Suzuki
Life of this patent
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Abstract
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.
Claims20
A gastrostomy catheter, comprising:
- a shaft having a lumen;
- a flexible bumper positioned at a tip of the shaft;
- and
- a linear member having elasticity and having at least a portion positioned along an inner peripheral surface of the flexible bumper inside the flexible bumper such that the linear member is elastically deformed and bent along the inner peripheral surface of the flexible bumper inside the flexible bumper and biases the flexible bumper from inside the flexible bumper in a diameter-increasing direction by the elasticity of the linear member,
- wherein the flexible bumper has a communication hole configured to allow an inside and an outside of the flexible bumper to communicate with each other, the linear member has a tip portion configured to be moved in the flexible bumper and put in and out of the flexible bumper through the communication hole, and the flexible bumper has a surface having a concave portion which is depressed in a radial direction of the flexible bumper and extends along an axial direction of the flexible bumper.
A gastrostomy catheter, comprising:
- a shaft having a lumen;
- a flexible bumper positioned at a tip of the shaft;
- and
- a linear member having elasticity and having at least a portion positioned along an inner peripheral surface of the flexible bumper inside the flexible bumper such that the linear member is elastically deformed and bent along the inner peripheral surface of the flexible bumper inside the flexible bumper and biases the flexible bumper from inside the flexible bumper in a diameter-increasing direction by the elasticity of the linear member,
- wherein the flexible bumper has a communication hole configured to allow an inside and an outside of the flexible bumper to communicate with each other, and the linear member has a tip portion configured to be moved in the flexible bumper and put in and out of the flexible bumper through the communication hole.
Dependencies are inferred from the claim text.