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EP0286415A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Tissue disintegrator

Assignee: Individual
•
Filing: 1988-04-08
•
Granted: —
•
Expires: 2008-04-08
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Abstract

Abstract A tissue disintegrator is described and is adapted for use with an endoscope for the surgical removal of tissue. The disintegrator comprises a cutter blade (20) mounted at the end of an elongated drive shaft (16) the other end of which is connected to means for rotating the drive shaft (16). The drive shaft (16) is supported for rotation in a hollow sheath (18) and a suction path parallel to the drive shaft leads from the cutter blade to an attachment (22) for connection to a source of suction, so that disintegrated tissue can be removed by suction from the region in which the cutter blade (20) operates. In order to prevent the cutter blade (20) from binding on the tissue, the region in which the cutter blade operates may be flushed with a physiologically acceptable irrigation liquid or a reciprocating motion may be imparted to the drive shaft (16).

Inventors

  • 👤 John Ewart Alfred Wickham
  • 👤 Malcolm John Coptcoat

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 15:48
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1482; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B2017/320028; A61B17/3205; A61B17/3207; A61B17/320758; A61B2017/320775; A61B2018/00315; A61B2018/00452; A61B2018/00476; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 118 words
A tissue disintegrator comprising a cutter blade and means for rotating the latter, characterised in that the cutter blade is mounted at one end of an elongated drive shaft, the other end of which is connected to the means for rotating the drive shaft, which is supported for rotation in an elongated hollow sheath, and in that the disintegrator is provided with an attachment for connection to a source of suction and with means defining a suction path parallel to said drive shaft and leading from said cutter blade to said attachment, whereby disintegrated tissue can be removed by suction from the region in which the cutter blade operates, the disintegrator being adapted for use with an endoscope.
Claim 2
Dependent Claim 118 words
A tissue disintegrator comprising a cutter blade and means for rotating the latter, characterised in that the cutter blade is mounted at one end of an elongated drive shaft, the other end of which is connected to the means for rotating the drive shaft, which is supported for rotation in an elongated hollow sheath, and in that the disintegrator is provided with an attachment for connection to a source of suction and with means defining a suction path parallel to said drive shaft and leading from said cutter blade to said attachment, whereby disintegrated tissue can be removed by suction from the region in which the cutter blade operates, the disintegrator being adapted for use with an endoscope.
Claim 3
Dependent Claim 27 words
A tissue disintegrator as claimed in Claim 1, wherein means is provided for imparting a reciprocating motion to the drive shaft and thus to the cutter blade.
Claim 4
Dependent Claim 21 words
A tissue disintegrator as claimed in Claim 1 or 2, wherein the drive shaft is hollow and defines said suction path.
Claim 5
Dependent Claim 34 words
A tissue disintegrator as claimed in any one of Claims 1 to 3, wherein the disintegrator is provided with means for leading an irrigation liquid to the region in which the cutter blade operates.
Claim 6
Dependent Claim 50 words
A tissue disintegrator as claimed in Claim 1, wherein the hollow supporting sheath for the drive shaft is surrounded by an outer hollow sheath which is longitudinally divided to form said suction path and a path for leading an irrigation liquid to the region in which the cutter blade operates.
Claim 7
Dependent Claim 16 words
A tissue disintegrator as claimed in any preceding claim, wherein the cutter blade is detachably mounted.

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