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US 2014/0276579 A1Published application
Devices and methods for securing an anti-leak feeding tube for gastric and/or intestinal use
AssigneesMedical Tool & Technology, LLC, University of Florida Research Foundation, Inc.
InventorsLUKE G. GUTWEIN, RICHARD D. HELMIG
Life of this patent
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Abstract
Medical device designs for enteral nutrition that inhibit the relative motion of one device member to another device member are herein disclosed. The gastric and/or intestinal feeding tube shaft is disposed of teeth, furrows, ridges, indentions, tabs, or corrugations that operate with an external retaining member. Alternative embodiments utilize an external retaining member with a collet fitting that applies pressure against the gastric and/or intestinal feeding tube shaft. The assemblies prevent the relative motion of the internal retention member relative to the external retaining member and assist in maintaining the internal retention member against the gastric wall.
Claims21
A gastric feeding tube comprising:
- a tube shaft with a proximal end and a distal end;
- one or more encircling teeth and furrows between the proximal end and the distal end;
- and
- an external retaining member having a channel therethrough in which the tube shaft is disposed, wherein the channel has a contiguous cavity that cooperatively engages with at least one of said teeth when the external retaining member is moved between the proximal end and distal end of the tube shaft.
1 more element
A gastric feeding tube comprising:
- a tube shaft with a proximal end and a distal end;
- a sleeve having at least one integral tooth wherein the at least one tooth encircles the tube shaft when the sleeve is affixed to the tube shaft;
- and
- an external retaining member having a channel therethrough in which the tube shaft and sleeve are disposed, wherein the channel has a contiguous cavity that cooperatively engages at least one tooth when the external retaining member is moved between the proximal end and distal end of the tube shaft.
1 more element
A gastric feeding tube comprising:
- a tube shaft with a proximal end and a distal end;
- a colletted external retaining member comprising:
- a plate member with a proximal side and a distal side and a channel therethrough,
- a column, with one or more securing elements, circumscribing the channel on the distal side of the plate member,
- a collet having at least two arm sections with slots therebetween and fixedly attached to a distal end of the threaded column, wherein at least a portion of the collet comprises a wedge-shape,
- wherein the column and collet form a contiguous passage with the channel for movably receiving the tube shaft therein;
- and
- a union nut comprising:
- a sleeve body with a bore therethrough that communicates a proximal end of
- the union nut with a distal end of the union nut and moveably receives the tube shaft such that the union nut is distal to the colletted external retaining member,
- an internal inclined plane at or near the distal end of the bore, and
- one or more cooperating features within the proximal end of the bore, which are compatible with the one or more securing elements;
- such that when the union nut is cooperatively engaged with the colletted external retaining member, the inclined plane within the union nut seats or presses against at least a portion of the wedge-shaped collet as the securing elements on the column engage with the cooperating features in the union nut, which causes the arm sections of the collet to press against the tube shaft in the contiguous passage and secure the position of the colletted external retaining member on the tube shaft.
10 more elements
A method for installing a gastric feeding tube in a patient comprising:
- obtaining a gastric feeding tube comprising:
- a tube shaft with a proximal end having a retention member thereon and a distal end;
- a colletted external retaining member comprising:
- a plate member with a proximal side and a distal side and a channel therethrough,
- a column, with one or more securing elements, circumscribing the channel on the distal side of the plate member,
- a collet having at least two arm sections with slots therebetween and fixedly attached to a distal end of the threaded column, wherein at least a portion of the collet comprises a wedge-shape,
- wherein the threaded column and collet form a contiguous passage with the channel for movably receiving the tube shaft therein;
- and
- a union nut comprising:
- a sleeve body with a bore therethrough that communicates a proximal end of
- the union nut with a distal end of the union nut and moveably receives the tube shaft such that the union nut is distal to the colletted external retaining member,
- an internal inclined plane at or near the distal end of the bore, and
- one or more cooperating features within the proximal end of the bore, which are compatible with the one or more securing elements;
- the method comprising,
- installing the gastric feeding tube with the tube shaft disposed through a fistula in a patient and the proximal end located in the gastric lumen of a patient;
- adjusting the tube shaft in the fistula until the retention member is against the fistula;
- advancing the external colletted retaining member on the tube shaft towards the patient until the proximal side of the plate member is pressed against the patient;
- advancing the union nut towards the colletted external retaining member so that it engages with the column and the at least two arm sections of the collet are pressed against the tube shaft to secure the position of the colletted external retaining member with the plate member against the patient.
15 more elements
Dependencies are inferred from the claim text.