Pre-assembled syringe
First Claim
1. A syringe assembly for dispensing a fluid comprising:
- a hollow barrel having opposed open ends defining a fluid-containing chamber therebetween;
a manually operable plunger insertable in one end of said barrel for movement within said chamber;
an injection holder attached to said other end of said barrel;
an injection member through which said fluid is dispensed in response to said movement of said plunger, said injection member being removably secured over a portion of said injection holder; and
a cover for accommodating said injection member and being removably attachable to said injection holder, said cover being movable with respect to said injection holder from a first position where said cover is retained on said injection holder to a second position where said cover is removed from said injection holder and wherein movement of said cover from said first position to said second position assures said removable securement of said injection member to said injection holder,wherein said cover and said injection holder include interfitting key and keyway structure for guiding movement of said cover between said first and second positions.
1 Assignment
0 Petitions
Accused Products
Abstract
A prefilled syringe provides for secure assembly of the components prior to use. The syringe includes a hollow barrel having opposed open ends and a plunger manually operable within one of the ends of the barrel. An injection holder is attached to the other end of the barrel. An injection member such as a hypodermic needle assembly or an IV access device is removably secured to the injection holder. The cover accommodates the injection member and is removably attached to the injection holder. The cover is movable with respect to the injection holder from a first position where the cover is retained on the injection holder to a second position where the cover is removed from the injection holder. Movement of the cover from the first position to the second position assures the removable securement of the injection member to the injection holder.
58 Citations
28 Claims
-
1. A syringe assembly for dispensing a fluid comprising:
-
a hollow barrel having opposed open ends defining a fluid-containing chamber therebetween; a manually operable plunger insertable in one end of said barrel for movement within said chamber; an injection holder attached to said other end of said barrel; an injection member through which said fluid is dispensed in response to said movement of said plunger, said injection member being removably secured over a portion of said injection holder; and a cover for accommodating said injection member and being removably attachable to said injection holder, said cover being movable with respect to said injection holder from a first position where said cover is retained on said injection holder to a second position where said cover is removed from said injection holder and wherein movement of said cover from said first position to said second position assures said removable securement of said injection member to said injection holder, wherein said cover and said injection holder include interfitting key and keyway structure for guiding movement of said cover between said first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A fluid dispensing medical syringe comprising:
-
an elongate fluid containing barrel defining a longitudinal axis and opposed open ends; a plunger movably supported in one end of said barrel for effecting said fluid dispensing; an injection holder attached to the other of said open ends; an injection member fictionally seatable on said injection holder; a cover releasably supporting said injection member therein, said cover being movable with respect to said injection holder in relative rotative and axial directions so as to attach and remove said cover to said injection holder; and guide means for guiding said movement of said cover with respect to said injection holder such that selective said rotative movement of said cover causes said axial movement of said cover towards said injection holder prior to removal of said cover from said injection holder so as to assure said frictional seating of said injection member on said injection holder. - View Dependent Claims (24, 25, 26, 27)
-
-
28. A syringe assembly for dispensing a fluid comprising:
-
a hollow barrel having opposed open ends defining a fluid-containing chamber therebetween; a manually operable plunger insertable in one end of said barrel for movement within said chamber; an injection holder attached to said other end of said barrel; an injection member through which said fluid is dispensed in response to said movement of said plunger, said injection member being removably secured over a portion of said injection holder; and a cover for accommodating said injection member and being removably attachable to said injection holder, said cover being movable with respect to said injection holder from a first position where said cover is retained on said injection holder to a second position where said cover is removed from said injection holder and wherein movement of said cover from said first position to said second position assures said removable securement of said injection member to said injection holder, wherein said cover and said injection member include interfitting key and keyway structure for guiding movement of said cover between said first and second positions.
-
Specification