US 12,290,646 B2
Deflection indicator for deflectable vascular catheter
Thomas P. Osypka, Palm Harbor, FL (US); Andrew J. Enerson, New Port Richey, FL (US); Michael John Gelineau, Lutz, FL (US); and Chet Michael, Tampa, FL (US)
Assigned to Oscor Inc., Palm Harbor, FL (US)
Filed by Oscor Inc., Palm Harbor, FL (US)
Filed on Jul. 15, 2021, as Appl. No. 17/376,798.
Application 17/376,798 is a continuation in part of application No. 29/737,784, filed on Jun. 11, 2020, granted, now D940307.
Application 17/376,798 is a continuation in part of application No. 29/737,782, filed on Jun. 11, 2020, granted, now D940306.
Claims priority of provisional application 63/052,200, filed on Jul. 15, 2020.
Prior Publication US 2021/0386971 A1, Dec. 16, 2021
Int. Cl. A61M 25/01 (2006.01); A61B 18/14 (2006.01); A61B 17/34 (2006.01); A61B 18/00 (2006.01)
CPC A61M 25/0136 (2013.01) [A61B 18/1492 (2013.01); A61B 17/3421 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00577 (2013.01); A61M 2205/583 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A deflectable vascular catheter, comprising:
a) an elongated sheath comprising a sheath lumen extending along a longitudinal axis from a proximal sheath portion to a deflectable distal sheath portion;
b) a proximal handle assembly comprising:
i) catheter support having a sidewall defining a catheter support lumen, wherein the proximal portion of the elongated sheath resides in the catheter support lumen;
ii) a catheter support sleeve contacting the sidewall of the catheter support so that the catheter support resides inside the catheter support sleeve;
iii) an internally threaded sleeve extending from a proximal open end to a distal open end, wherein a proximal portion of the internally threaded sleeve has internal threads that extend distally from the proximal open end to a distal portion of the threaded sleeve that is devoid of internal threads but surrounds a proximal portion of the catheter support sleeve in turn supporting the catheter support supporting the proximal portion of the elongated sheath;
iv) a drive gear housed inside and threadingly engaged with the internal threads of the threaded sleeve, wherein the drive gear comprises a drive gear central opening positioned between opposed drive gear first and second secondary openings;
v) at least one steering wire extending distally v) from the drive gear to the distal end portion of the elongated sheath;
vi) a proximal sheath hub abutting the internally threaded sleeve at the proximal open end thereof, wherein the proximal sheath hub comprises a distally extending sheath hub sleeve having a sheath hub lumen, the sheath hub sleeve extending distally through the central opening in the drive gear, and wherein the proximal portion of the elongated sheath is received in the sheath hub sleeve so that the sheath hub lumen is in open communication with the sheath lumen;
vii) a proximal seal retainer supporting first and second guide rods, wherein the first guide rod extends to first guide rod proximal and distal ends and the second guide rod extends to second guide rod proximal and distal ends, and wherein the first and second guide rods extend distally from the proximal seal retainer and through the opposed first and second secondary openings in the drive gear in a parallel side-by-side relationship with their respective distal ends being connected to the sheath support housed inside the sheath sleeve; and
viii) a deflection knob connected to an outer surface of the internally threaded sleeve,
c) wherein manipulation about the longitudinal axis of the deflection knob connected to the internally threaded sleeve threadingly engaged with the drive gear selectively moves the drive gear in a distal or a proximal axial direction along the sheath hub sleeve extending through the drive gear central opening and along the side-by-side first and second guide rods extending through the opposed first and second secondary openings in the drive gear to thereby selectively actuate the at least one steering wire to deflect the distal end portion of the elongated sheath between a first position aligned with the longitudinal axis of the elongated sheath and a second position deflected angularly away from the longitudinal axis.