Tissue tract lancet

• US 20060116704A1
• Filed: 07/14/2005
• Published: 06/01/2006
• Est. Priority Date: 07/15/2004
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Sing, Eduardo Chi, Ashby, Mark
• Granted Patent: US 9,808,278 B2
• Time in Patent Office: Days
• US Class Current: 606/167
• CPC Class Codes: A61B 17/32093 for skin incisions
• CPC Class Codes: A61B 17/3211 Surgical scalpels, knives; Accessories therefor
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• CPC Class Codes: A61B 2017/320044 Blunt dissectors blunt suture needles A61B2017/06085
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395

Abstract

The present disclosure is a method and apparatus to prepare a tissue tract having a handle member with a centerline, and a scalpel member fixedly attached to the handle member having a blunt tip, wherein the handle member has a first side positioned at a first positive angel relative to the centerline, and a second side opposite the first side positioned at a second positive angle relative to the centerline.

Claims

1. An apparatus to prepare a tissue tract, comprising:

a handle lying in a first plane; and

a scalpel blade extending from the handle, the handle being non-coplanar with the first plane of the handle.

2. The apparatus of claim 1, wherein the handle includes first and second sections, the first and second sections being non-coplanar to one another.

3. The apparatus of claim 2, wherein the handle includes a centerline, the handle first section being positioned at a first positive angle relative to the centerline, the handle second section being positioned at a second positive angel to the centerline.

4. The apparatus of claim 1, wherein the scalpel blade includes a blunt tip.

5. The apparatus of claim 2, wherein the scalpel blade further includes a first side apex and a second side apex opposite to the first side apex.

6. The apparatus of claim 5, wherein the first and second side apices are blunt.

7. The apparatus of claim 5, wherein the first and second side apices are sharp.

8. The apparatus of claim 1, wherein the handle and scalpel blade are integrally formed.

9. The apparatus of claim 1, wherein the handle and scalpel blade are punched from sheet material.

10. The apparatus of claim 5, wherein the scalpel blade includes forward and rearward facing cutting surfaces laterally flanking each apex.

11. The apparatus of claim 1, further including a depth marker.

12. The apparatus of claim 11, wherein the depth marker is a shoulder of the handle.

13. The apparatus of claim 11, wherein the depth marker is a dimension of the apparatus selected from the group of dimensions consisting of a width of the scalpel blade, a length of the scalpel blade, a width of the handle, and a length of the handle.

14. The apparatus of claim 1, further including first and second guide tabs.

15. The apparatus of claim 14, wherein the first guide tab is provided in the scalpel blade and the second guide tab is provided in the handle.

16. The apparatus of claim 1, further including a dilator.

17. The apparatus of claim 16, wherein the dilator includes a bleed back entrance port and a bleed back exit port.

18. The apparatus of claim 16, wherein the bleed back entrance and exit ports are positioned a distance apart equal to a desired tract depth.

19. The apparatus of claim 18, wherein the dilator further includes an indicia spaced from the bleed back entrance port a distance equal to a desired tract depth.

20. An apparatus for preparing a tissue tract, comprising:

a guide member; and

a tissue tract lancet mounted over the guide member, the tissue tract lancet including a handle and scalpel blade extending from the handle.

21. The apparatus of claim 20, further including a dilator mounted over the guide member, the tissue tract lancet being mounted over the dilator.

22. The apparatus of claim 20, wherein the tissue tract handle is non-coplanar to the scalpel blade.

23. The apparatus of claim 22, wherein the handle includes first and second sections that are non-coplanar to each other.

24. The apparatus of claim 23, wherein the handle includes a centerline, the handle first section being positioned at a first positive angle relative to the centerline, the handle second section being positioned at a second positive angle to the centerline.

25. The apparatus of claim 20, wherein the scalpel blade includes a blunt tip.

26. The apparatus of claim 25, wherein the scalpel blade further includes a first side apex and a second side apex opposite to the first side apex.

27. The apparatus of claim 26, wherein the first and second side apices are sharp.

28. The apparatus of claim 27, wherein forward and rearward facing cutting surfaces laterally flank the first and second side apices.

29. The apparatus of claim 20, wherein the guide member is one of a guide wire, needle, access sheath and guide catheter.

30. The apparatus of claim 29, wherein the tissue tract lancet includes first and second guide tabs for receipt of the guide member.

31. The apparatus of claim 21, wherein the dilator includes a bleed back entrance port and a bleed back exit port.

32. The apparatus of claim 31, wherein the bleed back entrance and exit ports are spaced a distance apart equal to a desired tract depth.

33. The apparatus of claim 32, wherein the dilator further includes an indicia spaced from the bleed back entrance port a distance equal to a desired tract depth.