Stopcock, plug for a stopcock, and method for producing a plug for a stopcock
AssigneeOlympus Winter & Ibe GmbH
InventorHannes Miersch
Life of this patent
Estimating the term…
Abstract
In order to flush away local bleeding during surgery with a medical instrument, the instruments are commonly provided with a flushing device. In order to be able to control an inflow and outflow of a flushing liquid, the instruments have a stopcock. In order to achieve the sealing action of the stopcock, the plugs of the stopcock have to be formed with a very high degree of precision. The known production processes for such plugs are very cumbersome and cost-intensive. This provides a plug for a stopcock and a stopcock and a method for producing a plug, by way of which the stated problem is eliminated. This is achieved in that a plug, with a grip part and a cone part, is formed in one part and can be produced in a single process step.
Claims8
A plug for a stopcock for producing and breaking a fluidic connection between at least two connection parts, the plug configured to be mounted in a rotatable manner in an interior space of a housing of the stopcock and includes:
- a cone part that has a cone surface, and a grip part that has a grip, wherein:
- the cone part has a cylindrical bore having a longitudinal axis that is perpendicular to an axis of rotation,
- the cone surface has horizontal webs and vertical webs which are configured to be brought into a sealing connection with an inner surface of the interior space of the housing, wherein the plug, with the cone part and the grip part, is formed in one part,
- the cone surface has at least two horizontal webs that extend annularly around the cone part,
- one horizontal web is arranged above the cylindrical bore and one horizontal web is arranged below the cylindrical bore,
- the cone surface has at least four vertical webs that extend adjacent to outlet openings of the cylindrical bore along the cone surface,
- the webs are straight or curved,
- the vertical webs have a width which corresponds at least to a diameter of the cylindrical bore,
- the vertical webs extend, in each case adjacent to the outlet openings of the cylindrical bore, along the cone surface, and the vertical webs are arranged in a semi-circle around the cylindrical bore,
- ends of the vertical webs each coincide with one of the at least two horizontal webs, and
- the cylindrical bore overlaps at least one of the horizontal webs along a direction parallel to the longitudinal axis of the cylindrical bore.
Dependencies are inferred from the claim text.