Syringe with actinic ray blocking stripe
First Claim
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1. A hypodermic syringe comprising:
- (a) a transparent barrel adapted to contain a liquid medication adversely affected by actinic rays, the barrel having two open ends, one of said two ends capable of having a hypodermic needle attached thereto;
(b) a plunger slidably insertable into the other open end of the barrel, said plunger having a bottom end with a reading means proximate thereto, and a top manipulative handle projecting beyond said one end of said barrel;
(c) visual indicia means on the barrel;
(d) non-removable, rectilinear means integral with the barrel for blocking actinic rays, said means extending generally the full length of the indicia marked portion of the barrel and between 150° and
270°
circumferentially of the barrel,whereby the medication in the syringe is permanently protected from the destructive effects of actinic rays as long as said rectilinear means is uppermost, and(c) means for constantly orienting the means for blocking actinic rays upwardly from a surface upon which the syringe rests.
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Accused Products
Abstract
A hypodermic syringe which in one form has a barrel transparent to actinic rays, plus an imperforate rectilinear strip for selectively blocking actinic rays in order to protect labile liquid medication in the syringe. The syringe plunger has an arrangement that provides tactile and audible indications of different positions of the plunger in the barrel. In another form, a similar arrangement assists persons with failing vision.
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Citations
21 Claims
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1. A hypodermic syringe comprising:
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(a) a transparent barrel adapted to contain a liquid medication adversely affected by actinic rays, the barrel having two open ends, one of said two ends capable of having a hypodermic needle attached thereto; (b) a plunger slidably insertable into the other open end of the barrel, said plunger having a bottom end with a reading means proximate thereto, and a top manipulative handle projecting beyond said one end of said barrel; (c) visual indicia means on the barrel; (d) non-removable, rectilinear means integral with the barrel for blocking actinic rays, said means extending generally the full length of the indicia marked portion of the barrel and between 150° and
270°
circumferentially of the barrel,whereby the medication in the syringe is permanently protected from the destructive effects of actinic rays as long as said rectilinear means is uppermost, and (c) means for constantly orienting the means for blocking actinic rays upwardly from a surface upon which the syringe rests. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 20)
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13. In combination:
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(a) a hypodermic syringe barrel having two open ends, one of said ends capable of receiving a sterile hypodermic needle, said barrel having a flange portion integral therewith; (b) visual indicia means on the barrel; (c) a group of plungers, each plunger of the group insertable into the other open end of the barrel, each plunger of the group having a bottom end with a plunger reading means proximate thereto, and a top manipulative handle, each plunger of the group also having one annular circumferential groove corresponding to a predetermined volume of medication between the bottom end of the plunger and the bottom end of the barrel; (d) fine adjustment means on the barrel, said fine adjustment means being situated generally proximate said flange, said fine adjustment means comprising a series of divisional lines and annular divisional grooves, said lines formed by the edges of said grooves; and (e) a clip portion firmly attached to the barrel proximate the flange portion and having a detent portion resiliently engageable with the groove of each of the plungers of the group to provide an auditory and tactile indication of the position of the plunger in the barrel, said clip portion having a locking means for allowing the clip portion to be in an unlocked state in which it is movable lengthwise of the barrel or a locked state in which it is fixed in a pre-set position on the barrel, said clip portion also having clip reading means thereon, the reading means in combination with the divisional lines of the fine adjustment means capable of indicating the position of the detent portion on the barrel. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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21. A hypodermic syringe comprising:
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(a) a transparent barrel adapted to contain a liquid medicament, the barrel having two open ends, one of said two ends capable of having a hypodermic needle attached thereto; (b) a plunger insertable into the other open end of the barrel, said plunger having a bottom end and a top manipulative handle; (c) visual indicia means on the barrel; (d) the plunger having at least one annular circumferential measuring groove, the measuring groove indicating a predetermined volume of medication between the bottom end of the plunger and the bottom end of the barrel; (e) a clip firmly fixed to the barrel proximate the other open end; (f) a detent carried by the clip and resiliently engageable with the measuring groove of the plunger to provide an auditory and tactile indication of the position of the plunger when the plunger reaches a position such that the detent is in the measuring groove; (g) wherein the needle can be flame sterilized; and (h) the measuring groove has associated therewith stop/start groove for allowing ejection of a minute amount of medication as the plunger travels the distance between said measuring groove and said stop/start grooves.
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Specification