Surgical method and device for reducing the food intake of patient
First Claim
1. A food intake restriction device for forming a food intake restriction above the bursa omentalis of a patient, comprising:
- a band having an elongated, bendable supporting outer wall having a longitudinal length and which is substantially non-expansible in its longitudinal direction, and an elongated flexible inner wall joined to said outer supporting wall to form a closed expansible cavity, said flexible inner wall having a longitudinal length and forming a tubular balloon, said supporting outer wall abutting the outer surface of said tubular balloon,means for forming a loop of the band defining a restriction opening,the length of the flexible inner wall being substantially greater than the length of the supporting outer wall, andfluid supply means for adding fluid to and withdrawing fluid from said cavity to expand the flexible inner wall to decrease the size of said restriction opening and to deflate the flexible inner wall to increase the size of said restriction opening.
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Accused Products
Abstract
A surgical method for reducing the food intake of a patient includes the steps of dissecting the lower part of the Esophagus, applying a band to form a loop around the Esophagus, displacing an upper part of the stomach through the loop, so as to form a small pouch above said band in connection with the Esophagus, and suturing the upper part to the stomach portion situated below the band loop, thereby tunnelating said band. A device useful in performing this method includes an elongated band having a flexible substantially non-expansible outer wall and a flexible and expansible inner wall joined to the outer wall to form an expansible closed cavity. The band has a length such that, when its ends are joined to each other, it forms a loop around the Esophagus, while permitting an upper part of the stomach to be introduced through the opening of the loop. A conduit extends between the band'"'"'s cavity and an injection port. By injecting fluid through the port, the inner wall in the band loop may be inwardly expanded from adjacent to the outer wall to substantially completely obstruct the loop opening. The band further has a wider portion intended to bear against the posterior side of the Esophagus.
552 Citations
46 Claims
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1. A food intake restriction device for forming a food intake restriction above the bursa omentalis of a patient, comprising:
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a band having an elongated, bendable supporting outer wall having a longitudinal length and which is substantially non-expansible in its longitudinal direction, and an elongated flexible inner wall joined to said outer supporting wall to form a closed expansible cavity, said flexible inner wall having a longitudinal length and forming a tubular balloon, said supporting outer wall abutting the outer surface of said tubular balloon, means for forming a loop of the band defining a restriction opening, the length of the flexible inner wall being substantially greater than the length of the supporting outer wall, and fluid supply means for adding fluid to and withdrawing fluid from said cavity to expand the flexible inner wall to decrease the size of said restriction opening and to deflate the flexible inner wall to increase the size of said restriction opening. - View Dependent Claims (2, 3, 4, 5, 6, 33, 34)
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7. A food intake restriction device for forming a stoma opening in the stomach or esophagus of a patient, comprising:
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a band consisting essentially of an elongated tubing having a pliable circumferential wall of a homogeneous material, said tubing forming a closed cavity, means for forming a loop of the band defining a restriction opening, and fluid distribution means for adding fluid to and withdrawing fluid from said cavity to adjust the volume of said cavity and the size of said restriction opening. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A food intake restriction device for forming a stoma opening in the stomach or esophagus of a patient, comprising:
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a longitudinally extensible-band consisting essentially of an elongated tubing having a circumferential wall of an elastic material, said tubing forming a closed cavity, means for forming a loop of the band defining a restriction opening, and fluid distribution means for adding fluid to and withdrawing fluid from said cavity to adjust the volume of said cavity and the size of said restriction opening. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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21. A surgical method for reducing the food intake of a patient by the use of a food intake restriction device, which includes a flexible band having a closed expansible cavity, and fluid supply means for adding fluid to and withdrawing fluid from said cavity, the method comprising the steps of:
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dissecting at least a part of a region of the cardia of the patient, said region selected from the group consisting of the cardia and a proximate part of the uppermost portion of the stomach that is adherent to the underlying tissue, so that a distal part of said uppermost portion of the stomach remains adherent to the underlying tissue; applying said band to form a loop around said dissected part of a region of the cardia; and displacing an anterior upper part of the stomach wall through said loop, thereby forming a small pouch of the stomach above said band. - View Dependent Claims (22, 23, 24, 25)
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26. A method for laparascopically implanting a food intake restriction device including a band, comprising:
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insufflating the abdomen of a patient to form a pneumoperitoneum; introducing at least one laparascopic trocar into the abdomen; dissecting by means of a dissection tool inserted through the laparascopic trocar at least a part of a region of the cardia of the patient, said region selected from the group consisting of the lower part of the esophagus, the cardia, and a proximate part of the uppermost portion of the stomach that is adherent to the underlying tissue, so that a distal part of said uppermost portion of the stomach remains adherent to the underlying tissue; introducing said band into the abdomen; operating a tool through the laparascopic trocar to pull said band around said dissected part of a region of the cardia so that said band extends in a loop; fixing said band to permanently extend in said loop; and displacing an anterior upper part of the stomach wall through said loop of said band, thereby forming a small pouch of the stomach above said band. - View Dependent Claims (27, 28, 29, 30, 31)
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32. A method for laparascopically implanting a food intake restriction device including a band, comprising:
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insufflating the abdomen of the patient to form a pneumoperitoneum; introducing at least one laparascopic trocar into the abdomen; dissecting by means of a dissection tool inserted through the laparascopic trocar the lower part of the esophagus and at least a part of a region of the cardia of the patient, said region consisting of the cardia and a proximate part of the uppermost portion of the stomach that is adherent to the underlying tissue, so that a distal part of said uppermost portion of the stomach remains adherent to the underlying tissue; introducing said band into the abdomen; operating a tool through the trocar to pull said band around said dissected lower part of the esophagus so that said band extends in a loop; fixing said band to permanently extend in said loop; and displacing an anterior upper part of the stomach wall through said loop of said band, thereby forming a small pouch of the stomach above the band, wherein the final position of said band is above the bursa omentalis.
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Specification