US5112310A — Apparatus and methods for percutaneous endoscopic…

Claim 1

Independent Claim 170 words

A method for percutaneous endoscopic gastrostomy using a guide wire, a sleeve having a tapered end and a gastrostomy tube having a retention device adjacent one end, comprising the steps of: (a) passing an endoscope through a patient's mouth and esophagus and into the patient's stomach; (b) introducing the guide wire through the patient's abdominal and gastric walls and into the patient's stomach; (c) grasping a portion of the guide wire within the stomach; (d) pulling the endoscope and guide wire from the stomach out the patient's mouth; (e) passing the sleeve, tapered end first, over the wire through the patient's mouth, esophagus and stomach and out through the abdominal and gastric walls, leaving terminal portions of the sleeve on opposite sides of the abdominal and gastric walls; (f) withdrawing the guide wire from the sleeve; (g) inserting the gastrostomy tube through the sleeve to locate the end thereof carrying the retention device within the stomach; and (h) activating the retention device to retain the gastrostomy tube within the stomach.

Claim 2

Independent Claim 170 words

A method for percutaneous endoscopic gastrostomy using a guide wire, a sleeve having a tapered end and a gastrostomy tube having a retention device adjacent one end, comprising the steps of: (a) passing an endoscope through a patient's mouth and esophagus and into the patient's stomach; (b) introducing the guide wire through the patient's abdominal and gastric walls and into the patient's stomach; (c) grasping a portion of the guide wire within the stomach; (d) pulling the endoscope and guide wire from the stomach out the patient's mouth; (e) passing the sleeve, tapered end first, over the wire through the patient's mouth, esophagus and stomach and out through the abdominal and gastric walls, leaving terminal portions of the sleeve on opposite sides of the abdominal and gastric walls; (f) withdrawing the guide wire from the sleeve; (g) inserting the gastrostomy tube through the sleeve to locate the end thereof carrying the retention device within the stomach; and (h) activating the retention device to retain the gastrostomy tube within the stomach.

Claim 3

Dependent Claim 18 words

The method according to claim 1 including the step of withdrawing the sleeve from about the gastrostomy tube.

Claim 4

Dependent Claim 51 words

The method according to claim 1 wherein the retention device adjacent the end of the gastrostomy tube includes an expansion element, the step of activating the retention device, including laterally expanding the retention device after insertion of the gastrostomy tube through the sleeve to retain the gastrostomy tube in the stomach.

Claim 5

Dependent Claim 33 words

The method according to claim 3 wherein the retention device includes an inflatable element and the step of activating the retention device includes inflating the inflatable element for lateral expansion within the stomach.

Claim 6

Dependent Claim 49 words

The method according to claim 1 including the steps of withdrawing the sleeve, leaving the end of the gastrostomy sleeve retained in the stomach and applying a retention device about the gastrostomy tube externally of the abdominal wall to clamp the gastrostomy tube to the abdominal and gastric walls.

Claim 7

Dependent Claim 44 words

The method according to claim 1 including clamping the gastrostomy tube to the abdominal and gastric walls using the retention device at one end thereof in the stomach to preclude withdrawal of the gastrostomy tube from the stomach through the abdominal and gastric walls.

Claim 8

Dependent Claim 122 words

Apparatus for performing percutaneous endoscopic gastrostomy comprising: an elongated flexible guide wire having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; an elongated sleeve having a tapered end portion and an internal diameter sized to enable slidable movement thereof along said guide wire, said sleeve having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; and a gastrostomy tube for reception within said sleeve and having a retention device adjacent an end portion thereof for retaining the gastrostomy tube within the patient's stomach in position for feeding.

Claim 9

Dependent Claim 122 words

Apparatus for performing percutaneous endoscopic gastrostomy comprising: an elongated flexible guide wire having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; an elongated sleeve having a tapered end portion and an internal diameter sized to enable slidable movement thereof along said guide wire, said sleeve having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; and a gastrostomy tube for reception within said sleeve and having a retention device adjacent an end portion thereof for retaining the gastrostomy tube within the patient's stomach in position for feeding.

Claim 10

Dependent Claim 19 words

Apparatus according to claim 7 wherein said sleeve has graduations along an end thereof opposite the tapered end portion.

Claim 11

Dependent Claim 19 words

Apparatus according to claim 7 wherein said sleeve is tapered a distance at least about substantially one-half its length.

Claim 12

Dependent Claim 21 words

Apparatus according to claim 7 wherein said sleeve has a catch adjacent the end thereof remote from the tapered end portion.

Claim 13

Dependent Claim 11 words

Apparatus according to claim 10 wherein said catch comprises a loop.

Claim 14

Dependent Claim 34 words

Apparatus according to claim 7 wherein said sleeve is tapered a distance at least about substantially one-half its length, said sleeve having a catch adjacent the end thereof remote from the tapered end portion.

Claim 15

Dependent Claim 21 words

Apparatus according to claim 8 wherein said sleeve has a catch adjacent the end thereof remote from the tapered end portion.

Claim 16

Dependent Claim 43 words

Apparatus according to claim 7 wherein said retention device includes an inflatable member and means carried by said gastrostomy tube at a location remote from said inflatable member for inflating said member and laterally enlarge said gastrostomy tube adjacent said end portion thereof.

Claim 17

Dependent Claim 66 words

Apparatus according to claim 7 wherein said retention device includes a member movable between a first position wherein said member has a diameter substantially corresponding to the diameter of said gastrostomy adjacent said end portion thereof and a second position wherein said member extends laterally outwardly of said gastrostomy tube thereby to preclude passage of the gastrostomy tube through an opening corresponding to the diameter thereof.

Claim 18

Dependent Claim 71 words

Apparatus according to claim 15 wherein said retention member includes an element slidable along said gastrostomy tube between first and second locations along said gastrostomy tube corresponding to said first and second positions of said member, respectively, and means carried by said gastrostomy tube engageable with said element and movable from a location along said gastrostomy tube remote from said member for moving said element between said first and second locations.

Claim 19

Dependent Claim 23 words

Apparatus according to claim 16 wherein said element includes a connecting tube for slidable movement along said gastrostomy tube for engaging said element.

Claim 20

Dependent Claim 28 words

Apparatus according to claim 17 wherein said element and said connecting tube have cooperable screw threads for connecting said element and said connecting tube one to the other.

Claim 21

Dependent Claim 31 words

Apparatus according to claim 17 wherein said element and said connecting tube have cooperable hook and abutment portions for releasably coupling said element and said connecting tube one to the other.

Claim 22

Dependent Claim 149 words

A percutaneous endoscopic kit comprising: a container; a needle cannula with stylette in said container; an elongated flexible guide wire in said container, said wire having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; an elongated sleeve in said container and having a tapered end portion and an internal diameter sized to enable slidable movement thereof along said guide wire, said sleeve having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; one of a gastrostomy tube or jejunostomy tube in said container for reception within said sleeve; and a retention device in said container for location adjacent an end portion of said one tube for retaining said one tube in position for feeding.

Claim 23

Dependent Claim 149 words

A percutaneous endoscopic kit comprising: a container; a needle cannula with stylette in said container; an elongated flexible guide wire in said container, said wire having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; an elongated sleeve in said container and having a tapered end portion and an internal diameter sized to enable slidable movement thereof along said guide wire, said sleeve having a length sufficient to extend from a location outside the abdominal wall of a patient through the patient's stomach and esophagus and out the patient's mouth; one of a gastrostomy tube or jejunostomy tube in said container for reception within said sleeve; and a retention device in said container for location adjacent an end portion of said one tube for retaining said one tube in position for feeding.

Claim 24

Dependent Claim 33 words

A kit according to claim 20 including one or more of a scalpel, a local anesthetic, a syringe and needle for applying local anesthetic, gauze, a sterile drape, a cleansing solution and scissors.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-05-12	1995-11-11	1996-05-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-05-12	1999-11-11	2000-05-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-05-12	2003-11-11	2004-05-12	$7700.00	Window Closed / Lapsed

Apparatus and methods for percutaneous endoscopic gastrostomy

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag