Means and method for forming syringe
AssigneesSunstar Inc., Yoshino Kogyosho Co., Ltd.
InventorsTakeshi Hattori, Kuniyuki Onzuka, Yoshiyuki Ichizawa
Life of this patent
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Abstract
In a first forming stage, the bottom portion of a mono-molded plastic syringe (a type wherein the whole portion, i.e., a main syringe body and a needle portion, is molded unitedly in a cast) is heated and then stretched to a certain length, forming the edge portion like a needle, while the syringe is intermittently moved. Then the sryinge is carried to a second forming stage, where the syringe is moved intermittently and the needle portion is heated, then it is bent at a certain angle and is cut in a certain length, forming a completed syringe.
Claims4
A means for forming a syringe, comprising:
- a first forming means being arranged to heat the bottom portion of a mono-molded plastic syringe, stretch said bottom portion to a certain length, form a needle and cut it in a certain length;
- and a second forming means being arranged to heat said needle of said syringe conveyed from said first forming means, bend said needle at a certain angle and cut it in a certain length.
Method for forming a syringe, comprising the steps of:
- a first heating step, wherein a bottom portion of a syringe is heated and softened;
- a stretching step, wherein said bottom portion of said syringe is stretched a certain amount along a longitudinal axis of said syringe, said bottom portion being formed as a needle portion of said syringe and said needle portion being cut to a certain length;
- a second heating step, wherein the base portion of said needle portion is heated and softened;
- a bending step, wherein said softened needle portion is bent at a certain angle;
- a cutting step, wherein said bent needle portion is cut to a certain length;
- and a reading step, wherein an angle reader and an outside diameter reader are arranged to read an angle and an outside diameter of said needle portion of said syringe, respectively.
Dependencies are inferred from the claim text.