Endoscopic instrument system for implanting a device in the stomach

• US 7,483,754 B2
• Filed: 11/16/2005
• Issued: 01/27/2009
• Est. Priority Date: 05/01/2001
• Status: Expired due to Fees

• Current Assignee: IntraPace, Inc.
• Original Assignee: IntraPace, Inc.
• Inventors: Layman, Ted W., Lake, Sharon L., Colliou, Olivier K., Imran, Mir A.
• Primary Examiner(s): Sykes; Angela
• Assistant Examiner(s): STOKLOSA, JOSEPH A
• Application Number:
  US11/281,234
• Publication Number:
  US 20060069414A1
• Time in Patent Office: 1,168 Days
• Field of Search: 607/40, 607/133, 600/101
• US Class Current: 607/133
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61B 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00026 Conductivity or impedance, e.g. of tissue
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/306 holding by means of suction
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 5/4238 stomach
• CPC Class Codes: A61B 5/6882 Anchoring means
• CPC Class Codes: A61F 5/0003 Apparatus for the treatment of obesity; Anti-eating devices surgical instruments or methods for treatment of obesity, devices specially adapted therefor A61B17/00; hollow or tubular parts of organs A61F2/04
• CPC Class Codes: A61M 2025/0233 specifically adapted for attaching to a body wall by means which are on both sides of the wall, e.g. for attaching to an abdominal wall
• CPC Class Codes: A61M 2025/028 having a mainly rigid support structure
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body
• CPC Class Codes: A61N 1/0509 Stomach and intestinal electrodes
• CPC Class Codes: A61N 1/0517 Esophageal electrodes
• CPC Class Codes: A61N 1/36007 of urogenital or gastrointestinal organs, e.g. for incontinence control
• CPC Class Codes: A61N 1/372 Arrangements in connection with the implantation of stimulators
• CPC Class Codes: G01N 27/126 comprising organic polymers

Abstract

An endoscopic delivery system is provided to deliver a functional device through the esophagus and into the stomach where it is attached the stomach wall The endoscopic instruments attach or remove the attachment devices and functional devices from the stomach and may be used to assist in determining the optimal attachment location.

Claims

1. A method for delivery of a device to a stomach wall of a patient, the method comprising the steps of:

forming an opening through the stomach wall from a first side of the stomach wall to an opposite side of the stomach wall by advancing a distal tissue-penetrating tip distally into the stomach wall, and extending an elongate body through the opening;

advancing an expansion member into the opening in the stomach wall using the elongate body by moving the expansion member distally relative to the elongate body while the elongate body is slidably disposed in a lumen of the expansion member, and radially expanding the opening in the stomach wall with the expansion member; and

inserting the device through the expanded opening so that the device is implanted extending from the first side to the opposite side.

2. The method of claim 1 further comprising expanding the device on the opposite side of the stomach wall so that the device is anchored to the stomach wall.

3. The method of claim 2 wherein the step of inserting the device from the first side of the stomach wall to the opposite side of the stomach wall comprises inserting the device from the inside of the stomach to the outside of the stomach wall.

4. The method of claim 1 further comprises the step of inserting a hollow tubular member through the expanded opening and inserting at least a portion of the device through the hollow tubular member.

5. The method of claim 1 wherein the step of forming an opening comprises piercing the stomach wall with a piercing member disposed at a distal end of the elongate member.

6. The method of claim 1 wherein the step of inserting the device through the expanded opening comprises inserting the device over the expansion member.

7. The method of claim 1 wherein the tissue-penetrating tip is disposed at a distal end of the elongate body, the elongate body comprising a needle, wherein the expansion member comprises a dilator having a distal tip that radially expands the opening while the tip is advanced into the opening.

8. The method of claim 1 further comprising axially advancing an additional expansion member independently of the expansion member and into the expanded opening, and radially expanding the expanded opening in the wall with the additional expansion member, wherein the additional expansion member has an outer diameter that is larger than an outer diameter of the expansion member.

9. The method of claim 8 wherein the additional expansion member comprises a cannula having a distal tip that radially expands the opening while the tip is advanced into the opening.

10. The method of claim 2 wherein a proximally-oriented surface of the expanded devices engages the opposite side of the stomach wall, and further comprising engaging a distally oriented surface against the side of the stomach wall and coupling the proximally-oriented surface with the distally oriented surface so that the device remains implanted through the stomach wall.

11. The method of claim 10 wherein the device supports a sensor within an interior of the stomach, and wherein the sensor is coupled to circuitry implanted within the patient and a power source implanted within the patient, and wherein the circuitry communicates wirelessly with a processor outside the patient.

12. The method of claim 10 wherein an electrode is coupled to the device, wherein the electrode stimulates the stomach wall so as to alleviate obesity of the patient.