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US 2007/0185411 A1Published application
Biopsy needle and method
AssigneeEthicon Endo-Surgery, Inc.
InventorJohn Hibner
Life of this patent
Estimating the term…
Abstract
A biopsy needle, where at least a portion thereof is configured from a non-ferrous and/or non-conductive material that reduces or eliminates MRI artifact while retaining desirable levels of strength and the ability to resist significant bending loads.
Claims20
A biopsy device comprising:
- (a) a handle;
- and
- (b) a needle assembly attached to said handle, wherein said needle assembly comprises;
- (i) an exterior surface configured from a non-ferrous and non-conductive material having a tissue-receiving aperture therein;
- (ii) an insert constructed from a non-ferrous and non-conductive material and attached to said exterior surface, wherein said insert is configured to divide at least a portion of the lumen defined by said exterior surface into a vacuum lumen and a cutter lumen;
- and
- (iii) a cutter, wherein said cutter is operably configured to translate within said cutter lumen to sever tissue retained within said tissue receiving aperture.
4 more elements
A biopsy device comprising:
- (a) a handle;
- and
- (b) a needle assembly attached to said handle, wherein said needle assembly comprises;
- (i) an exterior surface configured from a non-ferrous and non-conductive material selected from the group consisting of a carbon composite, Vectra, and Ultem, where said exterior surface further includes a tissue-receiving aperture located at the distal end thereof;
- (ii) an insert constructed from a non-ferrous and non-conductive material and attached to said exterior surface, wherein said insert includes a divider configured to divide at least a portion of the lumen defined by said exterior surface into a vacuum lumen and a cutter lumen, where said insert is coupled with said exterior surface by pushing said insert into the distal end of said exterior surface, where said insert further comprises longitudinally extending arms having detents thereon operably configured to engage holes located on said exterior surface such that engaging said detents and said holes permanently couples said insert and said exterior surface;
- and
- (iii) a cutter, wherein said cutter is operably configured to translate within said cutter lumen to sever tissue retained within said tissue receiving aperture.
4 more elements
A method for assembling a biopsy device comprising:
- (a) providing a handle having a longitudinally extendable cutter tube;
- (b) molding an exterior surface of a needle assembly from a non-ferrous and non-conductive material;
- (c) molding an insert from a non-ferrous and non-conductive material;
- (d) coupling said needle assembly to said handle;
- (e) pushing said insert into the distal end of said exterior surface;
- (f) coupling said insert into said exterior surface of said needle assembly;
- and
- (g) inserting a cutter.
5 more elements
Dependencies are inferred from the claim text.