US3563373A — Hypodermic syringe assembly

Claim 1

Independent Claim 186 words

A hypodermic needle assembly comprising a first cartridge including a first-necked vial having a dosage sealed therein, said seal being effected by a rupturable diaphragm and an outer sealing band closing the vial neck and a stem-operated plunger within said vial; a stem member and a coupler comprising a barrel fitting over the necked end of said vial, an integral shank extending beyond said barrel, a hypodermic needle carried by said shank and having an end extending into said barrel, and detent means within said barrel, said detent means normally engaging said sealing band to space the end of said needle from said diaphragm but to lock said coupler onto said cartridge by engaging said band when the vial is forced past said detent means further into said barrel, including a longitudinal cylindrical plunger stem member having a bore extending throughout its length and receiving said shank and a protruding end of said needle, and means to normally restrain said stem member on said shank and space the same from said barrel while the protruding end of said needle is located substantially entirely in said bore.

Claim 2

Dependent Claim 186 words

A hypodermic needle assembly comprising a first cartridge including a first-necked vial having a dosage sealed therein, said seal being effected by a rupturable diaphragm and an outer sealing band closing the vial neck and a stem-operated plunger within said vial; a stem member and a coupler comprising a barrel fitting over the necked end of said vial, an integral shank extending beyond said barrel, a hypodermic needle carried by said shank and having an end extending into said barrel, and detent means within said barrel, said detent means normally engaging said sealing band to space the end of said needle from said diaphragm but to lock said coupler onto said cartridge by engaging said band when the vial is forced past said detent means further into said barrel, including a longitudinal cylindrical plunger stem member having a bore extending throughout its length and receiving said shank and a protruding end of said needle, and means to normally restrain said stem member on said shank and space the same from said barrel while the protruding end of said needle is located substantially entirely in said bore.

Claim 3

Dependent Claim 101 words

A hypodermic needle assembly as defined in claim 1 including a secondary cartridge comprised of a vial and containing a dosage sealed in said vial by a plunger connected to said cylindrical stem member, whereby said needle may be forced into communication between the dosages of said first and second cartridges by telescoping said coupler on the vial of said first cartridge and said stem member onto said shank to pierce the diaphragm of the seal and of said first cartridge with one end of said needle and the plunger of said second cartridge with the protruding end of said needle.

Claim 4

Dependent Claim 53 words

A hypodermic needle assembly as defined in claim 2 including a stem connected to the plunger of said first cartridge, a flange on the vial of said first cartridge, and removable clip means to engage said stem and said flange simultaneously in order to fix the position of said plunger in said vial.

Claim 5

Dependent Claim 57 words

A hypodermic needle assembly as defined in claim 3 including a cap on said plunger stem of said first cartridge and a rigid packaging member surrounding said assembly as defined in claim 4 and closed by said cap, whereby the said assembly may be supported for shipping and stored in a sterile condition with said packaging member.

Claim 6

Dependent Claim 86 words

A packaged hypodermic needle assembly as defined in claim 5 in which said plunger stem member of said second cartridge is provided with a flange whose radius is substantially equal to the radius of said clip means and but slightly less than the radius of said cap, whereby said packaging means may be a tube closed at one end and adapted to be closed by said cap at its other end and said flange on said plunger stem member will support said assembly within said tube.

Claim 7

Dependent Claim 109 words

A spacer-plunger stem for hypodermic needle assemblies comprising a tubular member flanged at one end and provided at its other end with means connected to a plunger in a hypodermic dosage vial, the external surface of said stem having a sliding fit within said vial, and detent means on the interior of the bore of said tubular stem engaging a ferrule portion of means carrying a hypodermic needle having an overall length greater than the length of said bore but restrained by said detent means, when inserted into saiD bore at the flanged end of said stem, from penetrating through the plunger on said other end of said stem.

Claim 8

Dependent Claim 109 words

A spacer-plunger stem for hypodermic needle assemblies comprising a tubular member flanged at one end and provided at its other end with means connected to a plunger in a hypodermic dosage vial, the external surface of said stem having a sliding fit within said vial, and detent means on the interior of the bore of said tubular stem engaging a ferrule portion of means carrying a hypodermic needle having an overall length greater than the length of said bore but restrained by said detent means, when inserted into saiD bore at the flanged end of said stem, from penetrating through the plunger on said other end of said stem.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-02-15	1974-08-17	1975-02-16	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-02-15	1978-08-17	1979-02-16	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-02-15	1982-08-17	1983-02-16	$7700.00	Window Closed / Lapsed

Hypodermic syringe assembly

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