Adjustable holding apparatus for an endoscope

1. An adjustable holding apparatus comprising:

a proximal end;

a distal end, the distal end having a device for holding an endoscope or a medical device;

a plurality of arm segments between the proximal end and the distal end of the holding apparatus;

a plurality of lockable joints, each lockable joint connects two of the plurality of arm segments with one another in a jointed fashion, each lockable joint having an axle disposed therein, each axle being fixed relative to its associated lockable joint when the lockable joint is in a locked position, each axle being rotatable relative to its associated lockable joint when the lockable joint is in a released position;

a compensation device for at least partial compensation of the weight impact of the holding apparatus in a manual pivoting or sliding motion of at least one arm segment in a vertical direction;

a plurality of locking devices each associated with a lockable joint for locking the joint;

a plurality of pneumatically controlled power drive devices each associated with a lockable joint and configured to actuate the locking device between a locked position corresponding to the locked position of the lockable joint and a released position corresponding to the released position of the lockable joint; and

a control valve in communication with each pneumatically controlled power drive device so that an actuation of the control valve simultaneously biases each of the locking devices between a locked position and a released position;

wherein each lockable joint comprises a gear that transmits a smaller force and a greater path on the power drive device into a greater force and a smaller path on the locking device.

2. The adjustable holding apparatus of claim 1 , wherein the compensation device includes no mechanical power drive.

3. The adjustable holding apparatus of claim 1 , wherein the gear is a locking mechanism.

4. The adjustable holding apparatus of claim 1 , wherein each lockable joint further includes a spring or other elastic element that is coupled with the locking device in such a way that a force exerted by the spring or other elastic element causes a locking of the joint.

5. The adjustable holding apparatus of claim 1 , wherein the gear includes a sliding surface on the locking device, a sliding surface on the power drive device, a guide and a sliding piece that is contiguous with the sliding surface of the locking device and with the sliding surface of the power drive device and is led by the guide.

6. The adjustable holding apparatus of claim 5 , wherein an arm segment of the plurality of arm segments is in the shape of a parallelogram link.

7. The adjustable holding apparatus of Claim 6 , wherein the compensation device includes a spring or other elastic element.

8. The adjustable holding apparatus of claim 1 , wherein one or more arm segments of the plurality of arm segments are configured to pivot only around vertical or essentially vertical axes.

9. The adjustable holding apparatus of claim 1 , wherein a joint is configured on a predetermined arm segment to make possible a pivoting around a horizontal axis and wherein additional joints are each configured for pivoting around an axis that is perpendicular to the horizontal axis.

10. The adjustable holding apparatus of claim 1 further comprising an unlocking device with a push-button that is associated with a single lockable joint to release the locking of the associated lockable joint by manual pressure on the push-button.

11. The adjustable holding apparatus of claim 10 further comprising a plurality of unlocking devices, each unlocking device is associated with a lockable joint.