Patent EP0623317A1 successfully refreshed from Google Patents.
EP0623317A1
Expired / Lapsed
EP
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Rotatable endoscopic shaver with polymeric blades
Assignee: Linvatec Corp
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Filing: 1994-05-05
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Granted: —
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Expires: 2014-05-05
Abstract
Abstract A rotatable shaver having inner (60) and/or outer (32) non-metallic elongated blades for use in endoscopic surgical procedures. In one embodiment a rotatable, elongated non-metallic inner tubular member (60) is disclosed for use with a non-rotatable elongated metallic outer tubular member (32), the inner member having a flexible, non-metallic tubular body (64), a proximal hub and a distal tip provided with a cutting edge (66). The elongated tubular body (64) of the inner member (60) may be extruded or molded from a polymeric or composite material and may be bonded to or integrally formed with either the hub, the distal cutting tip of both. In one embodiment, the entirety of the rotatable inner tubular member (60, 80) (i.e. hub, tubular body and cutting tip) may be integrally formed as a single unit. In another embodiment, the outer tubular member (82) is formed with a non-metallic tubular sheath within which a metallic or non-metallic inner member (60) may rotate.
Inventors
- 👤 William F. Mazurek
- 👤 William Barrett
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 01:45
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
86 words
A rotatable elongated inner shaver blade (60) for use with a non-rotatable elongated outer tubular shaver blade (32) characterised in that said inner blade (60) comprises: a non-metallic elongated tubular body (64) having a proximal end and a distal end; engagement means (62) provided at the proximal end of said tubular body (64) for attaching said tubular body (64) to a means for rotating it relative to the outer blade (32); and a cutting means (66) provided at the distal end of said tubular body (64).
Claim 2
Dependent Claim
28 words
A rotatable elongated inner shaver blade (60) according to claim 1 characterised in that said non-metallic tubular body (64) and said engagement means (62) are integrally formed together.
Claim 3
Dependent Claim
31 words
A rotatable elongated inner shaver blade (60) according to claim 1 or claim 2 characterised in that said non-metallic tubular body (64) and said cutting means (66) are integrally formed together.
Claim 4
Dependent Claim
25 words
A rotatable elongated inner shaver blade (60) according to any proceeding claim characterised in that said tubular body (64) is made from a polymeric material.
Claim 5
Dependent Claim
25 words
A rotatable elongated inner shaver blade (60) according to any preceding claim characterised in that said tubular body (64) is made from a ceramic material.
Claim 6
Dependent Claim
25 words
A rotatable elongated inner shaver blade (60) according to any preceding claim characterised in that said tubular body (64) is made from a composite material.
Claim 7
Dependent Claim
21 words
A rotatable elongated inner shaver blade (60) according to any preceding claim characterised in that said tubular (64) body is extruded.
Claim 8
Dependent Claim
22 words
A rotatable elongated inner shaver blade (60) according to any preceding claim characterised in that said tubular body (64) is injection molded.
Claim 9
Dependent Claim
35 words
A rotatable elongated inner shaver blade (60) according to any preceding claim characterised in that said tubular body (64) is made from a material selected from the group consisting of polycarbonate, polyetherimide, polyalphaetherketone and polyetheretherketone.
Claim 10
Dependent Claim
172 words
A rotating shaver system comprising a handpiece; an outer elongated tubular member (32) having a proximal end and a distal end, said outer elongated tubular member (32) provided with an opening adjacent its distal end; means for non-rotatably mounting the proximal end of said outer elongated tubular member (32) to said handpiece; an inner elongated tubular member (60) rotatably received within said outer elongated tubular member (32), said inner tubular member (60) having a proximal end and a distal end, said distal end provided with a cutting means (66) for cutting, shaving or abrading tissue; and means for rotating said inner elongated tubular member relative to said outer elongated tubular member (32), characterised in that said inner tubular member (60) comprises an engagement means portion at said proximal end thereof for attaching said inner tubular member (60) to said means for rotating; a distal end portion provided with a cutting means (66); a tubular body (64) formed from a non-metallic material interposed between said engagement means portion and said distal end portion.
Claim 11
Dependent Claim
17 words
The shaver according to claim 10 characterised in that said inner elongated tubular member (64) is transparent.
Claim 12
Dependent Claim
94 words
The shaver according to claim 10 or claim 11 characterised in that the distal end of said outer elongated tubular member (32) is obliquely oriented relative to the proximal end of said outer elongated tubular member (32) and characterised in that said tubular body (64) of said inner elongated tubular member (60) is sufficiently flexible to maintain the distal end portion of said inner member (60) within said outer elongated tubular member (32) while simultaneously transmitting the rotational motion of said means for rotating to the distal end portion of said inner member (60).
Claim 13
Dependent Claim
32 words
The shaver according to claim 12 characterised in that said tubular body (64) has a solid, non-perforated tubular wall extending between the proximal and distal ends of said inner tubular member (60).
Claim 14
Dependent Claim
26 words
The shaver according to claim 12 characterised in that said inner elongated tubular member (60) is selectively removable from engagement with said outer tubular member (32).
Claim 15
Dependent Claim
75 words
A non-rotatable elongated outer tubular shaver blade (32) for use with a rotatable elongated inner tubular shaver blade (60) comprising: a non-metallic elongated tubular sheath having a proximal end and a distal end; an engagement means provided at the proximal end of said tubular sheath for attaching said tubular sheath to a means for holding it fixed relative to the inner blade; and a window means provided at the distal end of said tubular sheath.
Claim 16
Independent Claim
72 words
A method of producing a rotatable elongated inner shaver blade (80) comprising the steps of: providing a polymeric or composite material; forming said polymeric or composite material into an elongated tubular body (88) having a proximal end and a distal end; providing an engagement means (84) at said proximal end, said engagement means (84) adapted to attach said blade to a means for rotation; providing a cutting means at said distal end.
Claim 17
Independent Claim
70 words
A method of producing a rotatable elongated outer shaver blade (82) comprising the steps of: providing a polymeric or composite material; forming said polymeric or composite material into an elongated tubular body (90) having a proximal end and a distal end; providing an engagement means (86) at said proximal end, said engagement means (86) adapted to attach said blade to a holding means; providing an opening at said distal end.
Claim 18
Dependent Claim
19 words
The method according to claim 17 further comprising the steps of bending said outer tube (90) a predetermined amount.
Claim 19
Dependent Claim
46 words
The method according to claim 16 characterised in that said polymeric or composite material forms a tubular body (88) which is sufficiently flexible to enable said inner shaver blade (80) to be inserted into an angled outer elongated tubular member (86) and be rotatably received therein.
Claim 20
Dependent Claim
28 words
A method according to claim 16 characterised in that the step of providing an engagement means (86) comprises molding an engagement means (86) integrally with said tubular body.
Claim 21
Dependent Claim
25 words
A method according to claim 20 characterised in that said engagement means (86) has a rectilinear cross-section at the proximal end of said tubular body.
Claim 22
Dependent Claim
29 words
A method according to claim 17 characterised in that the step of providing an engagement means (84) comprises molding an engagement means (84) integrally with said tubular body (88).
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