Medical-technology valve device for suction and/or flushing lines of medical instruments

• US 20060229499A1
• Filed: 04/24/2006
• Published: 10/12/2006
• Est. Priority Date: 04/24/2004
• Status: Abandoned Application

• Current Assignee: Karl Storz Se & Co. Kg
• Original Assignee: Karl Storz Se & Co. Kg
• Inventors: Efinger, Andreas, Eisenkolb, Peter
• Application Number:
  US11/409,800
• Publication Number:
  US 20060229499A1
• Time in Patent Office: Days
• US Class Current: 600/159
• CPC Class Codes: A61M 1/7413 by changing the cross-section of the line
• CPC Class Codes: A61M 1/774 Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: A61M 5/16813 by controlling the degree of opening of the flow line

Abstract

The invention relates to a medical-technology valve device for suction and/or flushing lines of medical instruments, particularly instruments for endoscopic surgery, having a valve housing equipped with a through bore-hole and having a valve body, movably positioned in the valve housing, by which valve body the through bore-hole can be locked and opened again, and where the valve body is configured as a piston that can be displaced essentially perpendicularly to the through bore-hole by means of a servo drive, so that a rotary movement of the servo drive can be transformed into an axial movement of the piston. To produce a medical-technology valve device that makes possible a reproducible adjustment of the flow volume that is to be regulated, while allowing a reduction of turbulence, it is proposed with the invention that the servo drive is configured as a hand lever that can rotate around the longitudinal axis of the piston and can be displaced to move the piston from the position that frees the through bore-hole into the position that closes the through bore-hole by an angle of 90 degrees with respect to the longitudinal axis of the piston.

Claims

1. A medical-technology valve device for suction and/or flushing of medical instruments, in particular instruments for endoscopic surgery, having a valve housing provided with a through bore-hole as well as a valve body, movably positioned in the valve housing, by means of which valve body the through bore-hole can be closed and opened up again, whereby the valve body is configured by a piston that can be displaced essentially perpendicularly to the through bore-hole by means of a servo drive, so that a rotary motion of the servo drive can be converted into an axial motion of the piston, characterized in that the servo drive is configured as a hand lever that can rotate around the longitudinal axis of the piston and can be displaced to move the piston from the position that opens the through bore-hole into the position that closes the through bore-hole by a 90 degree angle with respect to the longitudinal axis of the piston.

2. A medical-technology valve device according to claim 1, characterized in that the servo drive and the piston are coupled to one another by means of a thread.

3. A medical-technology valve device according to claim 1, characterized in that the servo drive and the piston are coupled to one another by means of a gear.

4. A medical-technology valve device according to claim 3, characterized in that the servo drive is configured as a hand lever that can rotate perpendicularly to the longitudinal axis of the piston.

5. A medical-technology valve device according to claims 1, characterized in that on the valve housing and/or on the servo drive a scale is positioned that indicates the position of the piston with respect to the through bore-hole.

6. A medical-technology valve device according to claim 1, characterized in that the servo drive can be displaced in pre-established stepwise stops.

7. A medical-technology valve device according to claim 2, characterized in that the pitch of the thread is configured in such a way that the angle of rotation of the servo drive is porportional to the position of the piston to the through bore-hole.

8. A medical-technology valve device according to claim 7, characterized in that the thread is configured so that it is self-restricting.

9. A medical-technology valve device according to claim 1, characterized in that the motion of the piston can be controlled by a blocking element.

10. A medical-technology valve device according to claim 9, characterized in that the blocking element is configured as a rod that can be inserted into the valve housing.

11. A medical-technology valve device according to claim 9, characterized in that a longitudinal groove for the blocking element is configured in the piston.

12. A medical-technology valve device according to claim 1, characterized in that the angle of rotation of the servo drive can be restricted by a stop.