Endoscope for removal of thrombi from pulmonary arterial vessels

• US 4,862,874 A
• Filed: 06/09/1988
• Issued: 09/05/1989
• Est. Priority Date: 06/10/1987
• Status: Expired due to Fees

• Current Assignee: Hans-Jorg Kellner
• Original Assignee: Hans-Jorg Kellner
• Inventors: Kellner, Hans-Jorg
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US07/204,359
• Time in Patent Office: 453 Days
• Field of Search: 128/3, 128/4, 128/5, 128/6, 128/7, 128/328, 604/96, 604/97, 604/98, 604/99, 604/100, 604/101, 604/102, 604/103
• US Class Current: 600/116
• CPC Class Codes: A61B 1/00082 Balloons
• CPC Class Codes: A61B 1/015 Control of fluid supply or evacuation
• CPC Class Codes: A61B 1/018 for receiving instruments
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/22072 with an instrument channel, e.g. for replacing one instrument by the other in cannulas A61B17/3417
• CPC Class Codes: A61B 2017/22084 stone- or thrombus-dissolving
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system

Abstract

An endoscope having at least one light conductor, an image conductor and a rinsing channel, whereby the light and the image conductor as well as the rinsing channel open at a tip of an end part at the patient end of the endoscope, the end part of the endoscope tube being bilaterally turnable via Bowden wires, the end part being surrounded by a first dilatable ballon, a suction channel for connection to a suction pump having a diameter which is greater than the diameter of the rinsing channel extending in the endoscope tube, the suction channel also extending to the tip, and a catheter which extends beyond the tip extending in the endoscope tube, the catheter having a second dilatable balloon at its end.

Claims

1. An endoscope having at least one light conductor, one image conductor, a rinsing channel, a suction channel and a working channel, the light and the image conductor as well as the rinsing, the suction and the working channel being open at a tip of an end part at the patient end of the endoscope tube, the suction channel for connection to a suction pump having a diameter which is greater than the diameter of the rinsing channel, the end part of the endoscope tube being bilaterally turnable via Bowden wires, the end part being surrounded by a first dilatable balloon, a catheter being guided in a sliding manner in the working channel, said catheter extending beyond the tip and having a second dilatable balloon at its end, the endoscope tube having a bifurcation at its end opposite the end part at the patient end, the light and image conductor as well as the Bowden wires extending in one branch of the bifurcation, and the other branch of the bifurcation containing the remaining channels.

2. An endoscope according to claim 1, in which said other branch ends in a coupler which is common for the channel contained in said other branch.

3. An endoscope according to claim 2, in which the endoscope tube has a circular cross section, the suction channel being disposed eccentrically therein and the light and image conductor as well as the other channels extend in the thicker part of the tubing wall.

4. An endoscope according to claim 1, in which the light and image carrying conductors are guided in a common channel of the endoscope tube.

5. An endoscope according to claim 1, in which the one branch, together with the light and image conductors, are removable from the endoscope tube.

6. An endoscope according claim 1, in which the endoscope tube has a circular cross section, the suction channel being disposed eccentrically therein and the light and image conductor as well as the other channels extend in the thicker part of the tubing wall.