Orientation Adapter for Injection Tube in Flexible Endoscope

• US 20080114203A1
• Filed: 11/09/2007
• Published: 05/15/2008
• Est. Priority Date: 11/09/2006
• Status: Active Grant

• Current Assignee: Ams Research Corporation (Endo International PLC)
• Original Assignee: Ams Research Corporation (Endo International PLC)
• Inventors: Crank, Justin M.
• Granted Patent: US 7,993,264 B2
• Time in Patent Office: Days
• US Class Current: 600/104
• CPC Class Codes: A61B 1/00091 Nozzles
• CPC Class Codes: A61B 1/00101 the distal tip features being detachable
• CPC Class Codes: A61B 1/00131 Accessories for endoscopes
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 1/307 for the urinary organs, e.g. urethroscopes, cystoscopes
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

An endoscope adapter ring for a needleless fluid delivery system for delivering therapeutic fluids to treatment sites within a patient. The needless fluid delivery system can include an automated injector source and a needleless access device. The access device can include a delivery scope and a treatment specific applicator. The adapter ring is operably attached to the endoscope to keep the injector lumen in a known orientation for the use of a side injector.

Claims

1. A needleless fluid delivery system, comprising:

an endoscope having a flexible body between a proximal end and a distal end, the flexible body defining a work lumen and an optical viewing feature;

a needle injector device having a pressurized fluid source and an injector tube, the injector tube defining a non-circular cross-section and including at least one injection orifice proximate an injection end; and

an adapter ring removably fixed at the distal end of the flexible body, the adapter ring including a non-circular injector ring corresponding to the non-circular cross-section of the injector tube such that the non-circular injector ring slidably receives the injector tube so as to fix the position of the injection orifice relative to the endoscope.

2. The needleless fluid delivery system of claim 1, wherein the adapter ring is fixed within the work lumen proximate the distal end of the flexible body.

3. The needleless fluid delivery system of claim 2, wherein the adapter ring is press fit within the work lumen.

4. The needleless fluid delivery system of claim 1, wherein the adapter ring includes a sleeve body positionable over the distal end of the flexible body.

5. The needleless fluid delivery system of claim 1, wherein the non-circular cross-section of the injector tube is selected from the group consisting of:

an oval, a square and a triangle.

6. The needleless fluid delivery system of claim 1, wherein the injection orifice comprises a side orifice configuration proximate the injection end of the injector tube.

7. The needleless fluid delivery system of claim 1, wherein the optical viewing feature includes at least one lighting fiber optic and at least one viewing fiber optic.

8. The needleless fluid delivery system of claim 1, wherein the non-circular injector ring is attached to an inner perimeter of the adapter ring with a plurality of spokes such that the non-circular injector ring, the inner perimeter and the plurality of spoke define at least two additional ring channels.

9. A method for fixing a needleless injection orifice relative to a flexible endoscope comprising:

providing a endoscope having a flexible body between a proximal end and a distal end, the flexible body defining a work lumen and an optical viewing feature;

attaching an adapter ring at the distal end of the flexible body, wherein the adapter ring includes a non-circular injector ring; and

providing an injector tube having a cross-section corresponding to the non-circular injector ring, the injector ring including at least one injection orifice proximate an injection end; and

advancing the injection end of the injector tube into the non-circular injector ring.

10. The method of claim 9, wherein attaching the adapter ring at the distal end of the flexible body comprises press-fitting the adapter ring within a working lumen defined in the flexible body.

11. The method of claim 9, wherein attaching the adapter ring at the distal end of the flexible body comprises placing an adapter sleeve over the distal end of the flexible body.

12. A method for treating urinary tract tissue with a fluid comprising:

providing an endoscope having a flexible body between a proximal end and a distal end, the flexible body defining a work lumen and an optical viewing feature;

attaching an adapter ring at the distal end of the flexible body, wherein the adapter ring includes a non-circular injector ring; and

providing an injector tube having a cross-section corresponding to the non-circular injector ring, the injector ring including at least one injection orifice proximate an injection end;

selecting an administration orientation for the at least one injection orifice relative to the flexible body;

advancing the injection end of the injector tube into the non-circular injector ring such that the injection orifice corresponds to the administration orientation; and

positioning the injection orifice proximate a treatment site.

13. The method of claim 12, wherein positioning the injection orifice proximate the treatment site comprises viewing the treatment site with the optical viewing feature.

14. The method of claim 12, wherein attaching the adapter ring at the distal end of the flexible body comprises press-fitting the adapter ring within a working lumen defined in the flexible body.

15. The method of claim 12, wherein attaching the adapter ring at the distal end of the flexible body comprises placing an adapter sleeve over the distal end of the flexible body.

16. The method of claim 12, further comprising:

dispersing a pressurized treatment fluid at the treatment site.