Luer tip cap having reduced removal force

A removable tip cap for a luer of a polymeric medical solution container, comprising:

• an integral body having an outer portion and a cavity extending to an inner portion, the cavity having a frustoconical inner surface and an annular ring extending from the inner surface radially toward a centerline of the tip cap.

A removable tip cap for an elongated luer tip projecting from a distal end of a fluid chamber, wherein the luer tip has a narrow passage that extends therethrough and which communicates with the fluid chamber, the tip cap comprising:

• an integral body having an outer surface, a proximal end, a distal end, and a cavity extending into the body at the proximal end thereof, wherein an inner surface of the body defines the cavity and has a plurality of adjacent annular ridges extending radially toward a centerline of the body, the annular ridges defining contact areas adapted to engage the luer tip, the contact areas decreasing the area of contact area between the tip cap and the luer tip, and the annular ridges creating annular seals with the luer tip.

A removable tip cap for a luer of a polymeric medical solution container, comprising:

• an integral body having an outer portion and a cavity extending adjacent a proximal end of the body to an inner portion thereof, the cavity having a frustoconical inner surface and a plurality of annular rings extending from the inner surface radially toward a centerline of the tip cap, wherein the tip cap is adapted to removably engage the luer of the solution container, and wherein the frustoconical inner surface of the tip cap has a surface area less than a surface area of the luer.

A removable tip cap for a luer of a syringe, comprising:

• an integral body having an outer portion and a cavity extending to an inner portion, the cavity having a frustoconical inner surface and a plurality of annular ridges extending into the cavity and defining annular contact areas engaging the luer of the syringe, the annular contact areas corresponding to annular areas having increased contact pressures, wherein the contact pressures at the annular contact areas decreases the contact pressure between the tip cap and the luer adjacent the distal portion of the tip cap.

An syringe assembly comprising:

• a syringe having a syringe barrel defining a fluid chamber and an elongated tip projecting from a distal end of the syringe barrel, wherein the tip has a narrow passage that extends therethrough and which communicates with the fluid chamber of the syringe barrel;
• and,
• a removable tip cap for the syringe, the tip cap having an integral body having an outer surface, a proximal end, a distal end, and a cavity extending into the body at the proximal end thereof, the cavity having a frustoconical inner surface and at least one annular ridge extending from the inner surface radially toward a centerline of the tip cap, the annular ridge defining a contact area adapted to engage the tip of the syringe, the contact area decreasing a surface area of contact between the tip cap and the tip of the syringe, and the annular ridge providing an annular seal with the tip.