1
Ronald K Grooters, James A Coil Jr: Disposable surgical scope guide. Zarley McKee Thomte Voorhees & Sease, October 25, 1988: US04779611 (307 worldwide citation)

A medical scope guide allows internal body tissues to be viewed. The scope guide includes an elongated hollow tube having opposite inner and outer ends, and a transparent inflatable balloon secured to the inner end of the tube. The outer end of the tube is sealable and is adapted to slidably receive ...


2
Ronald K Grooters: Method of replacing a defective atrio-ventricular valve with a total atrio-ventricular valve bioprosthesis. Zarley McKee Thomte Voorhees & Sease, October 2, 1990: US04960424 (300 worldwide citation)

The method of replacing a defective atrio-ventricular valve in a patient's heart with a tissue atrio-ventricular valve bioprosthesis is provided. The replacement atrio-ventricular valve from the donor heart includes an annulus, a plurality of chordae, and papillary muscles attached thereto. The surg ...


3
Ronald K Grooters: External cardiac assist device. Zarley McKee Thomte Voorhees & Sease, July 21, 1992: US05131905 (297 worldwide citation)

An external cardiac assistance device is provided for augmenting cardiac contractions. The device includes a flexible, non-distensible shell adapted to be positioned over the base of the heart. A distensible membrane is mounted within the shell to define an inflatable space so that the device can be ...


4
Ronald K Grooters: Method and apparatus for sampling aortic plaque. Pilling Co, Howson & Howson, March 30, 1993: US05197485 (32 worldwide citation)

Apparatus and method for detecting the presence of friable atheromatous deposits in or near the aortic arch of a patient. Fluid aspirated from the aorta in the region of the inner curvature of the transverse arch and the descending aorta through a cannula attached to a handle is drawn by suction thr ...


5
Ronald K Grooters: Aortic cannula. McKee Voorhees & Sease, May 14, 2002: US06387087 (15 worldwide citation)

An improved aortic cannula for use in heart bypass surgery comprises an elongated tube with a terminal end. The improvement relates to the provision of two large openings adjacent the terminal end of the cannula, and an inverted cup at the terminal end to redirect the flow of blood as the blood exit ...


6
Ronald K Grooters, Robert J Todd: Aortic cannula with tapered tip. Zarley McKee Thomte Voorhees & Seas, July 3, 2001: US06254578 (10 worldwide citation)

An improved aortic cannula is provided for use in heart by-pass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge opening. The ramped surface terminates in a lip having a tapered leading edge with a point for insertion ...


7
Ronald K Grooters: Aortic cannula with spoon-shaped lip. McKee Voorhees & Sease, July 6, 2004: US06758834 (8 worldwide citation)

An improved aortic cannula is provided for use in heart by-pass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge opening. The ramped surface terminates in a spoon-shaped lip. The spoon-shaped lip directs blood out of ...


8
Ronald K Grooters: Aortic cannula with spoon-shaped lip. Zarley McKee Thomte Voorhees & Sease, February 13, 2001: US06186987 (5 worldwide citation)

An improved aortic cannula is provided for use in heart by-pass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge opening. The ramped surface terminates in a spoon-shaped lip. The spoon-shaped lip directs blood out of ...


9
Ronald K Grooters: Aortic cannula with spoon-shaped lip. Zarley Mckee Thomte Voorhees & Sease, March 29, 2001: US20010000082-A1

An improved aortic cannula is provided for use in heart by-pass surgery. The cannula includes an elongated tube with a terminal end. The terminal end has a ramped surface leading to the discharge opening. The ramped surface terminates in a spoon-shaped lip. The spoon-shaped lip directs blood out of ...