Drainage and instrument duct for the arthroscopy
First Claim
1. Drainage and instrument duct for the arthroscopy, characterized in that the drainage and instrument duct (10) is formed by the hollow cylinder (20) and a sleeve (30) disposed on the hollow cylinder (20) and displaceable in the longitudinal direction of the hollow cylinder, the length of which, in comparison with the length of the hollow cylinder (20), is dimensioned so as to be shorter, the hollow cylinder and the sleeve being interconnected at their ends (21, 31) so as to be flush and in that the sleeve (30) is provided with a wall section (35) which, when the sleeve (30) is longitudinally displaced towards the end (21) of the hollow cylinder (20), is outwardly expandable and, after the fashion at a basket, enlarges the external diameter of the sleeve and is provided with a number of perforations (135) which are so disposed as to be distributed over the circumference and in side-by-side arrangement the sleeve (30) being provided with means (40) for arresting the sleeve on the wall (20a) of the hollow cylinder (20), which arresting means interacts with the hollow cylinder (20).
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Accused Products
Abstract
The luxation-proof drainage and instrument duct for the arthroscopy comprises a hollow cylinder (20) and a sleeve (30) longitudinally displaceable thereupon which are interconnected at the one end, while the sleeve (30), within the area of its connecting end, is constructed in such a way that, when the sleeve (30) is displaced towards the connection plane, a terminal area of the sleeve is outwardly expanded in a basket-like manner over the circumference of the sleeve, the basket-like expanded sleeve end being provided with a plurality of perforations (135'"'"') disposed so as to be distributed over the circumference and in side-by-side arrangement. The sleeve (30) is arrested on the hollow cylinder (20) in the expanded state of the terminal section of the sleeve (FIG. 1).
106 Citations
24 Claims
- 1. Drainage and instrument duct for the arthroscopy, characterized in that the drainage and instrument duct (10) is formed by the hollow cylinder (20) and a sleeve (30) disposed on the hollow cylinder (20) and displaceable in the longitudinal direction of the hollow cylinder, the length of which, in comparison with the length of the hollow cylinder (20), is dimensioned so as to be shorter, the hollow cylinder and the sleeve being interconnected at their ends (21, 31) so as to be flush and in that the sleeve (30) is provided with a wall section (35) which, when the sleeve (30) is longitudinally displaced towards the end (21) of the hollow cylinder (20), is outwardly expandable and, after the fashion at a basket, enlarges the external diameter of the sleeve and is provided with a number of perforations (135) which are so disposed as to be distributed over the circumference and in side-by-side arrangement the sleeve (30) being provided with means (40) for arresting the sleeve on the wall (20a) of the hollow cylinder (20), which arresting means interacts with the hollow cylinder (20).
Specification