Removable volume indicator for syringe
AssigneeEdwards Lifesciences Corporation
InventorsIlan Tamir, Michael R. Bialas
Life of this patent
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Abstract
A volume indicator for a syringe can include an indicator body configured to removably clip onto a syringe body and a window portion extending through a thickness of the indicator body. The volume indicator can include inflation indicia corresponding to a range of expanded diameters for a prosthetic heart valve. The volume indicator can include one or more first engagement elements that correspond to one or more second engagement elements on a syringe.
Claims21
A method comprising:
- placing a volume indicator on a syringe comprising a syringe body by seating an engagement element on the syringe body within a corresponding engagement element that extends from an inner surface of the volume indicator laterally outwardly into a wall of the volume indicator, the syringe comprising the syringe body and a plunger received in the syringe body and the volume indicator comprising an indicator body and volume indicia on the indicator body, wherein the engagement element on the syringe body comprises a protrusion extending from a surface of the syringe body;
- filling the syringe body with an amount of fluid corresponding to one of the volume indicia on the indicator body;
- and
- fluidly connecting the syringe to a delivery apparatus for a prosthetic valve.
A method for using a volume indicator with a syringe for inflating a balloon to expand a prosthetic heart valve, the method comprising:
- placing a volume indicator on a syringe by engaging first and second engagement elements of a syringe body with first and second corresponding engagement elements of the volume indicator, the syringe comprising a syringe body and a plunger received in the syringe body and the volume indicator comprising an indicator body and volume indicia on the indicator body, wherein the first corresponding engagement element is disposed at a first end portion of the indicator body and wherein the second corresponding engagement element is disposed at a second end portion of the indicator body;
- filling the syringe body with an amount of fluid corresponding to one of the volume indicia on the indicator body;
- and
- fluidly connecting the syringe to a delivery apparatus for a prosthetic valve.
A method for using a volume indicator with a syringe for inflating a balloon to expand a prosthetic heart valve, the method comprising:
- placing a volume indicator on a syringe by engaging first and second engagement elements of a syringe body with first and second corresponding engagement elements of the volume indicator, the syringe comprising a syringe body and a plunger received in the syringe body and the volume indicator comprising an indicator body and volume indicia on the indicator body, wherein the first corresponding engagement element is disposed at a first end portion of the indicator body and wherein the second corresponding engagement element is disposed at a second end portion of the indicator body;
- filling the syringe body with an amount of fluid corresponding to one of the volume indicia on the indicator body;
- fluidly connecting the syringe to a delivery apparatus for a prosthetic valve;
- and
- wherein the volume indicator is a first volume indicator selected from a kit of volume indicators, the first volume indicator corresponding to a prosthetic heart valve having a nominal size of 20 mm, and wherein the kit comprises a second volume indicator corresponding to a prosthetic heart valve having a nominal size of 23 mm, a third volume indicator corresponding to a prosthetic heart valve having a nominal size of 26 mm, and a fourth volume indicator corresponding to a prosthetic heart valve having a nominal size of 29 mm.
Dependencies are inferred from the claim text.