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1. (WO2001012102) APPARATUS FOR FORMING IMPLANTS IN GASTROINTESTINAL TRACT AND KIT FOR USE THEREWITH
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WHAT IS CLAIMED IS

1 An apparatus for use with a suction source to treat a portion of a wall formmg a cavity m a body havmg a natural body openmg for accessmg the cavity compπsmg an elongate probe member havmg proximal and distal extremities, the elongate probe member havmg a length so that when the distal extremity is m the vicinity of the portion of the wall the proximal extremity is outside of the body, the distal extremity of the elongate probe member having an outer surface and bemg provided with at least one recess openmg onto the outer surface and an internal passageway communicating with the recess whereby when the suction source is coupled to the apparatus a suction is created in the recess by means of the passageway to draw the portion of the wall mto the recess, a hollow needle shdably disposed m the elongate probe member and havmg a distal end portion, the needle bemg actuatable from outside the body for movement from a retracted position to an extended position in which the distal end portion of the needle extends mto the recess whereby the needle can be extended mto the portion of the wall drawn mto the recess so as to mtroduce a mateπal into the portion of the wall and form an implant m the portion of the wall

2 The apparatus of Claim 1 wherem the elongate probe member has a lumen extendmg from the proximal extremity to the distal extremity whereby the suction source is coupled to the lumen in the vicinity of the proximal extremity of the elongate probe member

3 The apparatus of Claim 1 wherem the material is a fluid that includes at least one nonaqueous solution capable of forming a nonbiodegradable solid m the body, further compπsmg a supply of the at least one nonaqueous solution coupled to the needle for introducing the nonaqueous solution through the needle into the portion of the wall whereby the nonbiodegradable solid forms from the nonaqueous solution m the wall to create the implant

4 The apparatus of Claim 1 wherein the distal extremity has an outer cylindrical surface and is provided with a recess extendmg circumferentially around the outer cylindrical surface

5 The apparatus of Claim 1 wherem the distal extremity has an outer cylindncal surface and is provided with a plurality of circumferentially spaced-apart recesses in the outer cylindrical surface

6 The apparatus of Claim 1 wherem the elongate probe member has a lumen extending from the proximal extremity to the distal extremity, the hollow needle being shdably disposed in the lumen

7 The apparatus of Claim 1 wherem the elongate probe member includes an elongate first member and a second member removably mounted on the elongate first member, the second member including the distal extremity provided with the at least one recess therem 8 The apparatus of Claim 7 wherem the elongate first member has a lumen extendmg longitudinally therethrough for shdably carrying the hollow needle and the second member has guide means for directing the distal end portion of the needle mto the at least one recess.

9 The apparatus of Claim 7 wherem the second member has a longitudinally-extending lumen commumcatmg with the at least one recess, the hollow needle bemg shdably disposed m the lumen of the second member.

10 The apparatus of Claim 7 further compπsmg sealmg means forming a fluid-tight seal between the second member and the elongate first member

11 The apparatus of Claim 10 wherem the second member has an internal chamber for receiving at least a portion of the elongate first member, the internal chamber bemg in fluid communication with the passageway and the sealing means being disposed between the second member and the elongate first member for permitting a reduced pressure to be created in the chamber.

12 The apparatus of Claim 11 wherein the second member has a recessed wall which serves as a base for the at least one recess, the recessed wall having a plurality of spaced-apart openings fluidly communicating with respective passageways

13 The apparatus of Claim 10 wherein the second member is an end piece, the sealing means including a flexible sleeve caπied by the end piece and extendable over at least a portion of the elongate first member

14 The apparatus of Claim 7 wherem the elongate first member extends along a longitudinal axis and wherein the elongate first member and the second member are rotatable relative to each other about the longitudmal

15 The apparatus of Claim 7 further compπsmg an optical viewing device caπied withm the elongate first member, the optical viewing device havmg a field of view and the second member havmg a wmdow for permitting the optical viewmg device to view forwardly of the second member

16 The apparatus of Claim 7 wherem the second member is an overtube concentrically disposable about at least a portion of the elongate first member, the overtube havmg an internal chamber for receiving the portion of the elongate first member, the overtube havmg proximal and distal portions and having a length so that when the distal portion is m the vicinity of the portion of the wall the proximal portion is outside of the body, a seal disposed between the elongate probe member and the overtube for permitting a reduced pressure to be created m the chamber

17. The apparatus of Claim 7 wherem the elongate first member is flexible

18 The apparatus of Claim 7 wherein the second member is an end piece, further compπsmg an overtube member rotatably mounted about the end piece and at least a portion of the elongate first member, the overtube member having proximal and distal end portions and havmg a length so that when the distal end portion is m the vicinity of the portion of the wall the proximal end portion is outside of the body, the distal end portion of the overtube member being provided with a plurality of circumferentially disposed side openings whereby the end piece and the overtube member can be rotated relative to each other to selectively register the at least one recess m the end piece with one of the openmgs in the overtube member.

19 The apparatus of Claim 18 wherem the overtube member has a distal opening for permitting viewing distal of the overtube member

20. The apparatus of Claim 1 further comprising an additional hollow needle shdably disposed in the elongate probe member and having a distal end portion, the additional needle being actuatable from outside the body for movement from a retracted position in which the distal end portion of the additional needle is out of the at least one recess and an extended position in which the distal end portion of the additional needle extends into the recess

21 The apparatus of Claim 1 further comprising a balloon caπied by the distal extremity for urging the at least one recess against the portion of the wall

22 An apparatus for treating a portion of a wall forming a cavity in a body having a natural body openmg for accessing the cavity with a suction source and an elongate member extending along a longitudinal axis and having proximal and distal extremities and with a hollow needle shdably disposed in the elongate member and actuatable from the proximal extremity of the elongate member compπsmg an end piece and means adapted to mount the end piece on the distal extremity of the elongate member, the end piece havmg an outer surface and being provided with at least one recess openmg onto the outer surface and an internal passageway communicating with the recess whereby when the suction source is coupled to the apparatus so as to communicate with the passageway a suction is created m the recess to draw the portion of the wall into the recess, the end piece havmg guide means for directing the needle into the recess whereby the needle can be extended into the portion of the wall drawn mto the recess so as to introduce a fluid into the portion of the wall and form an implant in the portion of the wall from the fluid

23. The apparatus of Claim 22 wherein the end piece has a diameter approximating the diameter of the elongate member and wherein the end piece extends forwardly of the elongate member.

24. The apparatus of Claim 23 further comprising a tube extendable alongside the elongate member and secured to the end piece for providing suction to the passageway.

25. The apparatus of Claim 24 further comprising a sleeve for removably securing the tube to the elongate member.

26. The apparatus of Claim 22 further comprising a balloon caπied by the end piece for urging the at least one recess against the portion of the wall.

27. The apparatus of Claim 26 further comprising a tube extendable alongside the elongate member and secured to the end piece for providing a fluid to inflate the balloon.

28. The apparatus of Claim 22 wherein the elongate member has a lumen extending from the proximal extremity to the distal extremity for providing suction to the passageway.