BIOPSY EXTRACTION UNIT

• US 20130041285A1
• Filed: 04/18/2011
• Published: 02/14/2013
• Est. Priority Date: 04/27/2010
• Status: Abandoned Application

• Current Assignee: Apriomed, AB (Halma PLC)
• Original Assignee: Apriomed, AB (Halma PLC)
• Inventors: Akerfeldt, Dan, Astrm, Gunnar
• Application Number:
  US13/642,979
• Publication Number:
  US 20130041285A1
• Time in Patent Office: Days
• US Class Current: 600/567
• CPC Class Codes: A61B 10/0266 means for severing sample
• CPC Class Codes: A61B 2017/00738 part of the tool being offset with respect to a main axis, e.g. for better view for the surgeon

Abstract

Biopsy extraction unit for use in relation to a biopsy device provided with an outer cannula. The biopsy extraction unit is provided with a unit handle, an intermediate part and an elongated sample rod, the rod being offset and essentially parallel to the longitudinal central axis of the biopsy extraction unit, wherein the sample rod is adapted to essentially be positioned along an inner wall of the outer cannula when inserted into said biopsy device.

Claims

1. Biopsy extraction unit for use in relation to a biopsy device provided with an outer cannula,

characterized in that the biopsy extraction unit is provided with a unit handle, an intermediate part and an elongated sample rod, the rod being offset and essentially parallel to a longitudinal central axis of the biopsy extraction unit, wherein the sample rod is adapted to essentially be positioned along an inner wall of the outer cannula when inserted into said biopsy device.

2. Biopsy extraction unit according to claim 1, wherein the sample rod has an essentially circular cross-section.

3. Biopsy extraction unit according to claim 1, wherein the sample rod has an essentially triangular cross-section having one side facing outwards in relation to the central axis of the unit.

4. Biopsy extraction unit according to claim 1, wherein the sample rod has an essentially rectangular cross-section having one side facing outwards in relation to the central axis of the unit.

5. Biopsy extraction unit according to claim 1, wherein the distal tip of the sample rod is sharpened such that the sharpened edge is located furthest away from the central axis in the radial direction.

6. Biopsy extraction unit according to claim 1, wherein the sample rod is parallel to the central axis along its entire length.

7. Biopsy extraction unit according to claim 1, wherein the distal part of the sample rod is bent outwards.

8. Biopsy extraction unit according to claim 1, wherein at least the sample rod is made from metal.

9. Biopsy extraction unit according to claim 1, wherein at least the sample rod is made from plastic.

10. Biopsy device comprising a biopsy extraction unit according to claim 1, wherein the length of the sample rod is such that when the biopsy extraction unit is fully inserted the distal tip of the sample rod is located within the outer cannula.

11. Method of biopsy tissue sampling, comprising:

inserting an outer cannula into tissue where a tissue sample is to be taken,

inserting a sample rod of a biopsy extraction unit according to claim 1, into the outer cannula,

withdrawing the outer cannula and the sample rod, where the cannula encloses a tissue sample.