Endoscopic Instrument And Endoscopic Instrument System

Patent metadata

Field	Value
Publication number	US-2016157701-A1
Application number	US-201514959123-A
Country	US
Kind code	A1
Filing date	Dec 4, 2015
Priority date	Dec 5, 2014
Publication date	Jun 9, 2016
Grant date	—

Abstract

An endoscopic instrument according to the invention includes an elongate tube, which has an axially continuous and substantially cylindrical main lumen for receiving a shaft of an endoscope lens system, and a tool, which is arranged at a distal end of the tube and can be controlled via an elongate transmission element from a proximal end of the tube, wherein the tube has an axially continuous secondary lumen which adjoins the main lumen in a transverse direction, is connected to the main lumen via a narrowed transition area and receives the transmission element. The invention also relates to an endoscopic instrument system.

First claim

1 . An endoscopic instrument with an elongate tube, which has an axially continuous and substantially cylindrical main lumen for receiving a shaft of an endoscope lens system, and with a tool, which is arranged at a distal end of the tube and can be controlled via an elongate transmission element from a proximal end of the tube, characterized in that the tube has an axially continuous secondary lumen which adjoins the main lumen in a transverse direction, is connected to the main lumen via a narrowed transition area and receives the transmission element.

2 . The endoscopic instrument according to claim 1 , characterized in that the tube is designed with a substantially uniform wall thickness.

3 . The endoscopic instrument according to claim 1 , characterized in that the narrowed transition area is axially continuous.

4 . The endoscopic instrument according to claim 1 , characterized in that the narrowed transition area is narrower than a corresponding transverse dimension of the transmission element.

5 . The endoscopic instrument according claim 1 , characterized in that the transmission element is guided at a distance from the shaft of an endoscope lens system inserted into the main lumen.

6 . The endoscopic instrument according to claim 1 , characterized in that the transmission element is guided in the secondary lumen with a clearance that is sufficient for irrigation.

7 . The endoscopic instrument according to claim 1 , characterized in that the transmission element is designed as a pull rod, and in that the tool comprises at least one movable tool element, which is movable by means of the pull rod.

8 . The endoscopic instrument according to claim 7 , characterized in that the tool is designed as forceps or scissors and comprises at least one forceps or scissor part which is pivotable about a transverse stub and which is connected to a distal end of the pull rod in an articulated manner.

9 . The endoscopic instrument according to claim 1 , characterized in that a proximal end area of the tube has an attachment piece for the introduction of a cleaning liquid.

10 . The endoscopic instrument system with an endoscopic instrument according to claim 1 and with a rigid endoscope lens system which can be inserted into the main lumen of the tube of the endoscopic instrument.

11 . The endoscopic instrument according to claim 2 , characterized in that the narrowed transition area is axially continuous.

Assignees

• Storz Karl Gmbh & Co Kg

Inventors

• Preis Fridolin

Classifications

• A61B1/0011

  Manufacturing of endoscope parts · CPC title

• A61B2017/00331

  with preformed bends · CPC title

• A61B2090/0813

  Accessories designed for easy sterilising, i.e. re-usable · CPC title

• A61B1/015

  Control of fluid supply or evacuation · CPC title

• A61B17/0218

  for minimally invasive surgery (A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title