Method of and apparatus for restricting the passage of food through the stomach
First Claim
1. An extended duration implantation apparatus for restricting the passage of food through a stomach comprising:
- first and second cooperating jaws having opposed stomach wall engaging surface for clamping a stomach therebetween, the jaws being connected for co-planar pivotal movement with respect to each other;
said opposed stomach wall engaging surfaces of the jaws defining at least one relatively open area for permitting the passage of food through the portion of the stomach received therein and at least one relatively closed area for preventing the passage of food through the portion of the stomach received therein, the relatively closed area of the opposed stomach wall engaging surfaces of the jaws further characterized by a plurality of matingly engagable contours for gripping a portion of the stomach therebetween whereby said jaws are prevented from movement relative to the stomach;
means for preventing movement of the jaws relative to a stomach clamped therebetween;
the first jaw being of a one-piece construction and having and an integral latching member extending from the unhinged end thereof towards the second jaw, a portion of the latching member including a locking mechanism;
the second jaw having a receptacle for receiving the latching member of the first jaw and for engaging the locking mechanism of the latching member when the latching member is fully inserted therein; and
wherein the latching member, when fully inserted in the receptacle of the second jaw, maintains a predetermined distance of separation between the stomach engaging surfaces of the jaws throughout the relatively closed area defined thereby sufficient to substantially prevent traumatizing stomach tissue secured between the jaws.
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Accused Products
Abstract
The passage of food through a stomach (S) is restricted by clamping an apparatus (10) around the stomach (S). The apparatus (10) comprises cooperating jaws (12, 14) having stomach engaging surfaces (22, 24). The stomach engaging surfaces (22, 24) define a relatively open area (26) which permits the passage of food therethrough at a restricted rate. The stomach engaging surfaces (22, 24) further define relatively closed areas (28, 30) which prevent the passage of food therethrough. The apparatus (10) is secured in place on the stomach (S) by cooperating teeth (36) which engage the stomach wall, and by sutures formed between the stomach wall and apertures (38, 40, 42) formed in the jaws (12, 14).
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Citations
18 Claims
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1. An extended duration implantation apparatus for restricting the passage of food through a stomach comprising:
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first and second cooperating jaws having opposed stomach wall engaging surface for clamping a stomach therebetween, the jaws being connected for co-planar pivotal movement with respect to each other; said opposed stomach wall engaging surfaces of the jaws defining at least one relatively open area for permitting the passage of food through the portion of the stomach received therein and at least one relatively closed area for preventing the passage of food through the portion of the stomach received therein, the relatively closed area of the opposed stomach wall engaging surfaces of the jaws further characterized by a plurality of matingly engagable contours for gripping a portion of the stomach therebetween whereby said jaws are prevented from movement relative to the stomach; means for preventing movement of the jaws relative to a stomach clamped therebetween; the first jaw being of a one-piece construction and having and an integral latching member extending from the unhinged end thereof towards the second jaw, a portion of the latching member including a locking mechanism; the second jaw having a receptacle for receiving the latching member of the first jaw and for engaging the locking mechanism of the latching member when the latching member is fully inserted therein; and wherein the latching member, when fully inserted in the receptacle of the second jaw, maintains a predetermined distance of separation between the stomach engaging surfaces of the jaws throughout the relatively closed area defined thereby sufficient to substantially prevent traumatizing stomach tissue secured between the jaws. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Apparatus for an extended duration implantation around a human stomach for restricting the passage of food through the stomach and thereby effecting weight loss in an obese patient comprising:
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first and second cooperating jaws having opposed stomach wall engaging surfaces for clamping a stomach therebetween, the jaws being connected for pivotal movement with respect to each other; said opposed stomach wall engaging surfaces defining a centrally located relatively open area having a substantially circular shape and a diameter of about 1.25 centimeters for permitting the passage of food through the portion of the stomach received therein and two relatively closed areas extending in opposite directions from the open area for preventing the passage of food through the portion of the stomach received therein, the relatively closed area of the opposed stomach wall engaging surfaces of the jaws further characterized by a plurality of matingly engagable contours for gripping a portion of the stomach therebetween whereby said jaws are prevented from movement relative to the stomach; means situated at first ends of the cooperating jaws for supporting the jaws for co-planar pivotal movement relative to one another; the first jaw being of a one-piece construction and having an integral latching member extending from the free end thereof toward the second jaw, a portion of the latching member including a locking mechanism; the second jaw having a receptacle for receiving the latching member of the first jaw and for engaging the locking mechanism of the latching member when the latching member is fully inserted therein; wherein the latching member, when fully inserted in the receptacle of the second jaw, maintains a predetermined distance of separation between the stomach engaging surfaces of the jaws throughout the relatively closed areas defined thereby sufficient to substantially prevent traumatizing stomach tissue secured between the jaws; and means for preventing movement of the jaws relative to a stomach clamped therebetween. - View Dependent Claims (11, 12)
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13. A method of restricting the passage of food through a stomach and thereby effecting weight loss in an obese patient comprising:
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providing first and second cooperating jaws with opposed matingly engagable contoured stomach engaging surfaces, the jaws being connected for co-planar pivotal movement with respect to each other, at least the first jaw having a one-piece construction; clamping the cooperating jaws around the outside of a stomach with the stomach engaging jaws thereof positioned in engagement with the opposite sides of the stomach and located to substantially restrict the passage of food through the stomach; securing the cooperating jaws against movement relative to the stomach clamped therebetween; providing the first jaw with an integral latching member extending from the free end thereof towards the second jaw, a portion of the latching member including a locking mechanism; providing the second jaw with a receptacle for receiving the latching member of the first jaw and for engaging the locking mechanism of the latching member when the latching member is fully inserted therein; maintaining a predetermined distance of separation, by means of the latching member, between the stomach engaging surfaces of the jaws sufficient to substantially prevent traumatizing stomach tissue clamped therebetween; and maintaining the first and second cooperating jaws engaged around the stomach for an extended period of time. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification