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Home Obesity Surgery Method-and-device-for-gastric-line-insertion

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 Method and device for gastric line insertion

Details
Inventors: Demeter, Robert J.; Bock, Henry C.; Gao, Dayong;
Assignee: Methodist Hospital of Indiana, Inc. (Indianapolis, IN)
Primary Examiner: McDermott; Corrine M.
Assistant Examiner: Gring; N. Kent
Attorney, Agent or Firm: Barnes & Thornburg

The present invention provides a method and device for placement of a gastric line in the digestive tract of a patient. A guide element is either formed integrally with the end of a gastric line or it is formed separately to be fixed on the end segment of a gastric line to reduce the flexibility of the gastric line segment and facilitate the positioning of the gastric line in a patient's digestive tract. The guide element is provided with means for slideably engaging a previously positioned transepiglottal guide line so that the guide element when engaged with the guide line, can be pushed down the guide line to position the gastric line in an esophageal or post-esophageal position. An optional mouthpiece is provided to receive and guide the gastric tube toward the middle of the posterior oral pharynx during insertion and to protect the gastric line from the biting surfaces of the teeth and maintain its position in the mouth after insertion.

DETAILED DESCRIPTION In one embodiment of the present invention there is provided a guide element formed to be fixed in contact with a segment of a gastric line at or near the end of the line to be inserted into a patient's digestive tract.
When fixed on the gastric line, the guide element reduces the flexibility of at least a portion of the contacted gastric line segment to facilitate directing the inserted end of the line into the esophagus.
The guide element is provided with means for slideably engaging and tracking a previously positioned transepiglottal guide line.
The transepiglottal guide line is preferably positioned in a patient by having the patient swallow a bolus attached to the gastric end of the guide line with the other end extending from the patient's mouth.
The end of the gastric line with the affixed guide element in slideably engagement with the guide line can be easily pushed down the guide line to a predetermined esophageal or post-esophageal position in a patient's digestive tract.
Optionally in accordance with another embodiment of this invention, the guide line can be extended through the lumen of a gastric tube or the end of the gastric tube to be inserted can be modified to include an integrally formed guide element for slideable engagement with the guide line.
Gastric line insertion and retention can be further facilitated by use of a mouthpiece to be positioned in a patient's mouth for receiving the gastric tube, guiding it toward the middle of the posterior oral pharynx, and protecting it from the biting surfaces of the teeth.
This invention is also directed to a gastric line insertion kit including a guide line, means for positioning one end of the guide line in a patient's stomach, and means for slideably engaging the gastric end of a gastric line with the pre-positioned guideline.
Slideable engagement of a gastric tube with the guideline is accomplished by extending the guideline through the lumen of the gastric tube, forming the gastric end of the tube to include separate channel, bore or track for slideably receiving the guideline or by providing a separate guide element for positioning on the gastric end of the gastric tube


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