US 12,290,647 B2
Puncture device for accessing the vascular system
Hernán Rebolledo Berríos, Punta Arenas (CL)
Assigned to South 53 LLC, San Juan Capistrano, CA (US)
Appl. No. 17/259,441
Filed by South 53 LLC, San Juan Capistrano, CA (US)
PCT Filed Jul. 12, 2018, PCT No. PCT/CL2018/050055
§ 371(c)(1), (2) Date Jan. 11, 2021,
PCT Pub. No. WO2020/010478, PCT Pub. Date Jan. 16, 2020.
Prior Publication US 2021/0275781 A1, Sep. 9, 2021
Int. Cl. A61M 25/06 (2006.01); A61M 25/00 (2006.01)
CPC A61M 25/06 (2013.01) [A61M 25/0023 (2013.01); A61M 2025/0008 (2013.01); A61M 2025/0024 (2013.01); A61M 2025/0042 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A puncture device for accessing a vessel within the vascular system, comprising:
a needle with a tubular body, the needle having an angled cutting edge at a distal end of the tubular body for puncturing the vessel within the vascular system, the tubular body having an external diameter;
the angled cutting edge extending distally from a proximal end of the angled cutting edge at a first side of the needle to a distal end of the angled cutting edge at a second side of the needle opposite the first side, the tubular body having an outer surface with its longest longitudinal length extending along the second side of the needle and terminating at the distal end of the angled cutting edge, wherein the angled cutting edge forms an acute angle with respect to the outer surface of the needle along the second side of the needle;
the puncture device including an echogenic bulb-shaped portion having an external diameter greater than the external diameter of the tubular body, the echogenic bulb-shaped portion having greater echogenicity relative to the tubular body, a distal end of the bulb-shaped portion providing a stop configured to rest against and deform an exterior surface of the vessel that has been punctured by the cutting edge while permitting rotation of the needle while the bulb-shaped portions rest against the exterior surface, the bulb-shaped portion curtailing further progress of the cutting edge into the vessel; and
a visible mark on the outer surface along the second side of the needle and extending parallel to a longitudinal axis of the tubular body to enable a user to identify the longest portion of the tubular body when accessing a vessel within the vascular system.