Spacer for a medical instrument
AssigneeKarl Storz GmbH & Co. KG
InventorsDiethelm Wallwiener, Sara Brucker
Life of this patent
Estimating the term…
Abstract
The spacer serves for limiting the depth of insertion of a shaft of a medical instrument into a body of a patient. The spacer has a distal abutment for bearing on a body of a patient. The spacer has a spacer element extending along a length section of the shaft of the medical instrument. A device for releasably mounting the spacer on the shaft has an aperture via which the spacer can be mounted laterally to the shaft. For it the aperture is designed as a lateral slit aperture.
Claims18
A stackable spacer extending along a length section of the shaft of a medical instrument for limiting a depth of insertion of the shaft into a body of a patient, the spacer comprising:
- an even disk for bearing on a body of a patient, the even disk having a lateral slit, and
- a first annular flange which projects from said disk, and which merges via a shoulder into a second annular flange of greater diameter, the first flange and the second flange extending approximately perpendicular to said disk, the external diameter of the first annular flange matching a clear internal diameter of the second annular flange,
- wherein the clear inner diameter of the second flange is placed onto a corresponding projection projection distally on said medical instrument, and
- wherein the spacer is mounted from a side on to said shaft via the lateral, slit in said even disk.
A medical instrument comprising:
- a shaft;
- at least one stackable spacer extending along a length section of said shaft for limiting a depth of insertion of said shaft into a body of a patient, said at least one spacer comprising:
- a distal abutment in form of an even disk for bearing on a body of a patient, and
- first annular flange which projects from said disk, and which merges via a shoulder into a second annular flange of greater diameter, the external diameter of the first annual flange matching a clear internal diameter of the second annular flange, the first and second flange extending approximately perpendicular to said disk, the second annular flange of one spacer fitting onto the first annular flange of a second spacer when the one spacer is stacked on the second spacer, resulting in a firm sit of said one spacer stacked on the second spacer;
- a device for releasably mounting said at least one spacer on said medical instrument, said device having an aperture via which said spacer can be mounted on said shaft, said aperture being designed as a lateral slit in said disk aperture via which said spacer can be fitted from a side on to said shaft, and
- a projection projecting distally on said medical instrument, the clear inner diameter of the second annular flange of said spacer able to be placed onto said projection.
A spacer extending along a length section of the shaft of a medical instrument for limiting a depth of insertion of the shaft into a body of a patient, the spacer comprising:
- an even disk for bearing on a body of a patient, the even disk having a body with a slit aperture whose width corresponds to the external diameter of the shaft, and
- a locking screw that is screwed into the slit aperture to secure the disk on the shaft in a defined position of the shaft.
Dependencies are inferred from the claim text.