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US 2024/0148370 A1Published application
Full Core Biopsy Device
AssigneePave, LLC
InventorsDeborah R. Beck, Dan C. Ireland
Life of this patent
Estimating the term…
Abstract
A biopsy device includes coaxially disposed inner and outer needles in which the outer needle tip is configured for obtaining a tissue sample. The inner surface of the outer needle includes a tissue retention feature which may include a countersink and/or a feature formed in the inner surface. The device may be introduced to a biopsy site through an introducer in which the introducer is vented and/or a certain ratio of introducer inner diameter and biopsy device outer diameter is maintained.
Claims15
A biopsy device comprising:
- an outer needle hub;
- an outer needle coupled at a proximal end to the outer needle hub, the outer needle including:
- an outer needle tip at an opposite distal end;
- a tissue slicing feature defined at said tip configured for cutting tissue;
- an inner surface defining a lumen through said outer needle for receiving tissue therein, said inner surface including a countersink formed at said tip;
- and
- at least one opening defined in said outer needle between said countersink and said proximal end;
- an inner needle hub;
- and
- an inner needle coupled at a proximal end to said inner needle hub, the inner needle including an inner needle tip at an opposite distal end, said inner needle coaxially disposed within the outer needle.
7 more elements
A biopsy device comprising:
- an outer needle hub;
- an outer needle coupled at a proximal end to the outer needle hub, the outer needle including:
- an outer needle tip at an opposite distal end;
- a tissue slicing feature defined at said tip configured for cutting tissue;
- and
- an inner surface defining a lumen through said outer needle for receiving tissue therein, said lumen having an inner diameter;
- and
- an inner needle hub;
- an inner needle coupled at a proximal end to said inner needle hub, the inner needle including an inner needle tip at an opposite distal end, said inner needle coaxially disposed within said outer needle;
- and
- a mechanism coupled to said outer needle hub and said inner needle hub for charging and firing said outer needle relative to said inner needle to capture a tissue sample within said outer needle tip, said mechanism operable to retract said outer needle into said housing in a charged position, and said mechanism is further configured and operable to propel said outer needle distally through a throw length,
- wherein said throw length is at least 18 times greater than said inner diameter of said outer needle.
9 more elements
A biopsy assembly comprising:
- a biopsy device including;
- an outer needle hub;
- an outer needle coupled at a proximal end to the outer needle hub, the outer needle including an outer needle tip at an opposite distal end, a tissue slicing feature formed at a distalmost end of said outer needle tip and an inner lumen for receiving tissue therein extending from said distalmost end to the proximal end of the outer needle;
- an inner needle hub;
- an inner needle coupled at a proximal end to the inner needle hub, the inner needle including an inner needle tip at an opposite distal end, the inner needle being coaxially disposed within the lumen of said outer needle;
- and
- a mechanism coupled to said outer needle hub and said inner needle hub for charging and firing said outer needle relative to said inner needle to capture a tissue sample within the lumen of said outer needle,
- an introducer cannula having a length less than the length of said outer needle and defining a lumen sized to receive the outer needle of said biopsy device,
- wherein said outer needle has an outer diameter and said lumen of said introducer cannula has an inner diameter that is at least 1.20 times greater than said outer diameter.
6 more elements
A biopsy device comprising:
- an outer needle hub;
- an outer needle coupled at a proximal end to the outer needle hub, the outer needle defining an outer diameter and an inner diameter and including:
- an outer needle tip at an opposite distal end;
- a tissue slicing feature defined at said tip configured for cutting tissue;
- an inner surface defining a lumen through said outer needle for receiving tissue therein, said inner surface including a countersink formed at said tip and extending proximally from said tip to said inner diameter at a depth from said tip;
- and
- an inner needle hub;
- and
- an inner needle coupled at a proximal end to said inner needle hub, the inner needle including an inner needle tip at an opposite distal end, said inner needle coaxially disposed within the outer needle,
- wherein said outer diameter has a dimension from 0.035-0.065 inches, said inner diameter has a dimension from 0.535-0.295 inches, and said depth of said countersink has a dimension of 0.08-0.10 inches.
7 more elements
Dependencies are inferred from the claim text.