Penetration instrument
OwnerSiegfried Riek, Karl-Heinz Bachmann +1inventors
InventorsSiegfried Riek, Karl-Heinz Bachmann, Thomas Gaiselmann
Life of this patent
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Abstract
An instrument is described for the penetration of body tissue with a hollow shaft, the point of which is formed as a conical, beveled, or tapered window. An optic with a lighting unit is brought into the point through the hollow shaft. The optic ends at an axial distance behind the summit of the point. The instrument can be inserted within view. In so doing, the entry of the point can be observed over the entire surface area thereof. Preferably, a second optic is run to the summit of the point, which in addition enables improved observation of the area lying directly in front of the point.
Claims14
An instrument for the direct penetration of body tissue comprising:
- a hollow shaft,
- a transparent, pointed conical window at the distal end of said shaft having an apex in advance of said hollow shaft,
- said hollow shaft and said pointed conical window comprising means for penetrating body tissue to create an artificial access to a body cavity,
- an optical element within said hollow shaft having a distal end formed as a wide angle lens spaced from said conical window and positioned to receive the image of at least a part of a body adjoining the exterior of said conical window, and
- a light conductor within said hollow shaft for conducting light from a light source and directing light to said conical window.
An instrument for the direct penetration of body tissue comprising:
- a hollow shaft,
- a transparent pointed conical window at the distal end of said shaft having an apex in advance of said hollow shaft,
- said hollow shaft and said pointed conical window comprising means for penetrating body tissue to create an artificial access to a body cavity,
- an optical element within said hollow shaft having a distal end positioned to receive the image of at least a part of a body adjoining the exterior of said conical window,
- a light conductor within said hollow shaft for conducting light from a light source and directing light to said conical window, and
- a rotatable, axially stationary externally screw threaded sleeve in surrounding relation to said hollow shaft, said sleeve being annular and separable from said hollow shaft.
Dependencies are inferred from the claim text.