Zinon C Possis

US Patent:

40782689, Mar 14, 1978

Filed:

Sep 7, 1976

Appl. No.:

5/720776

Inventors:

Zinon C. Possis - Edina MN

Assignee:

St. Jude Medical, Inc. - St. Paul MN

International Classification:

A61F 122

US Classification:

3 15

Abstract:

A heart valve prosthesis having an annular base carrying two pivoting valving members for use in a heart to control the flow of blood. The valving members are pivotally mounted on the annular base for pivotal movement about separate axes spaced from the center of the base. In one form of the prosthesis the base is removably attached to a suturing assembly adapted to be connected to heart tissue.

US Patent:

45464995, Oct 15, 1985

Filed:

Dec 13, 1982

Appl. No.:

6/448955

Inventors:

Zinon C. Possis - Edina MN
Demetre M. Nicoloff - Edina MN

Assignee:

Possis Medical, Inc. - Minneapolis MN

International Classification:

A61F 124

US Classification:

623 1

Abstract:

A graft is used to supply blood to one or more coronary artery branches. The graft has an elongated U-shaped tubular body providing a continuous passage for carrying blood from a high pressure blood supply to a blood receiver. One or more openings in the body allow blood to flow into the coronary artery branches. The flow and pressure of the blood in the passage is controlled by a restriction located remote from the inlet end of the tubular body. The pressure differential between the blood supply and blood receiver maintains continuous and adequate blood flow at a desired pressure in the body passage and provides a continual supply of blood for the coronary artery branches.

US Patent:

45625972, Jan 7, 1986

Filed:

Apr 29, 1983

Appl. No.:

6/489798

Inventors:

Zinon C. Possis - Edina MN
Demetre M. Nicoloff - Edina MN

Assignee:

Possis Medical, Inc. - Minneapolis MN

International Classification:

A61F 124
A61F 100

US Classification:

623 1

Abstract:

A vascular graft is used to supply blood to one or more coronary artery branches. The vascular graft has an elongated U-shaped tubular body providing a continuous passage for carrying blood from a high pressure blood supply to a blood receiver. One or more openings in the body allow blood to flow into the coronary artery branches. The flow and pressure of the blood in the passage is controlled by a restriction providing a Venturi passage located remote from the inlet end of the tubular body. The restriction is reinforced with an annular sleeve to maintain a desired cross sectional area and length of the Venturi passage. The pressure differential between the blood supply and blood receiver maintains continuous and adequate blood flow at a desired pressure in the body passage and provides a continual supply of blood for the coronary artery branches.

US Patent:

RE310409, Sep 28, 1982

Filed:

Feb 15, 1980

Appl. No.:

6/121674

Inventors:

Zinon C. Possis - Edina MN

Assignee:

St. Jude Medical, Inc. - St. Paul MN

International Classification:

A61F 122

US Classification:

3 15

Abstract:

A heart valve prosthesis having an annular base carrying two pivoting valving members for use in a heart to control the flow of blood. The valving members are pivotally mounted on the annular base for pivotal movement about separate axes spaced from the center of the base. In one form of the prosthesis the base is removably attached to a suturing assembly adapted to be connected to heart tissue.

US Patent:

44875673, Dec 11, 1984

Filed:

Mar 24, 1983

Appl. No.:

6/478338

Inventors:

Zinon C. Possis - Edina MN
Demetre M. Nicoloff - Edina MN

Assignee:

Possis Medical, Inc. - Minneapolis MN

International Classification:

B29C 2700

US Classification:

425403

Abstract:

A mandrel assembly supports an umbilical cord during the shaping and curing of the cord for use as a vascular graft. The mandrel assembly has a pair of mandrel members adapted to be releasably connected in end-to-end relation. Adjacent end sections of the mandrel members have reduced cross sectional shapes to provide the graft with a Venturi throat. Each mandrel member has a low friction outer surface to facilitate the insertion and withdrawal of the mandrel member from the lumen of the umbilical cord.

US Patent:

46017186, Jul 22, 1986

Filed:

Jul 13, 1984

Appl. No.:

6/630838

Inventors:

Zinon C. Possis - Edina MN
Demetre M. Nicoloff - Edina MN

Assignee:

Possis Medical, Inc. - Minneapolis MN

International Classification:

A61F 206

US Classification:

623 1

Abstract:

A graft is used to supply blood to one or more coronary artery branches. The graft is also usable as a peripheral revascularization and inter position prosthesis to supply blood to desired blood vessels. The graft has an elongated U-shaped tubular body providing a continuous passage for carrying blood from a high pressure blood supply to a blood receiver. One or more openings in the body allow blood to flow into the coronary artery branches. The flow and pressure of the blood in the passage is controlled by a restriction providing a restricted passage located remote from the inlet end of the tubular body. In one embodiment, the restriction is reinforced with a sleeve to maintain a desired cross sectional area and length of the restricted passage. The pressure differential between the blood supply and blood receiver maintains continuous and adequate blood flow at a desired pressure in the continuous passage and provides a continual supply of blood for the coronary artery branches.

US Patent:

49099795, Mar 20, 1990

Filed:

Dec 6, 1984

Appl. No.:

6/678993

Inventors:

Zinon C. Possis - Edina MN
Demetre M. Nicoloff - Edina MN

Assignee:

Possis Medical, Inc. - Minneapolis MN

International Classification:

B29C 5700

US Classification:

264571

Abstract:

A mandrel assembly supports an umbilical cord during the shaping and curing of the cord for use as a vascular graft. The mandrel assembly has a pair of mandrel members adapted to be releasably connected in end-to-end relation. Adjacent end sections of the mandrel members have reduced cross sectional shapes to provide the graft with a throat to restrict the flow of blood through the vascular graft. Each mandrel member has a low friction outer surface to facilitate the insertion and withdrawal of the mandrel member from the lumen of the umbilical cord. In one embodiment, the adjacent ends and neck portions of the mandrel members have small holes. A vacuum pump draws air from within the mandrel members to withdraw moisture from the tissue of the umbilical cord and hold the umbilical cord in conforming relationship with the joined mandrel members during the forming and curing of the umbilical cord.

US Patent:

48890774, Dec 26, 1989

Filed:

Jul 14, 1988

Appl. No.:

7/218974

Inventors:

Zinon C. Possis - Edina MN

International Classification:

H01K 507

US Classification:

119 5111

Abstract:

An animal feeder having a base mountable on a support containing an electric motor operable to rotate a shaft at a relatively slow speed. A food dispensing wheel having pockets for holding food is releasably mounted on the shaft. Rotation of the wheel by operation of the motor periodically dispenses food to a feeding location.