Disposable self-shielding hypodermic syringe
First Claim
Patent Images
1. An intravenous catheter needle fixture, including a needle, a body, and a protector case, wherein:
- I. said body and said protector case have;
A. a first end and a second end;
B. a needle mounted on said first end of said body; and
C. a fluid container on said second end of said body;
II. said protector case slidably containing said body, THE IMPROVEMENT COMPRISING;
a. said body and said protector case mutually incorporating first and second detent means for holding said body within said protector case in first and second positions, respectively, whereby;
1. said needle is;
A. removably wholly contained within said protector case in said first position; and
B. extended for use in said second position;
b. said body having thereon extensions with extremities defining an external first rectangular cross-section thereto;
c. said protector case having;
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Accused Products
Abstract
The disclosure relates to a hypodermic syringe which is stackable, disposable and non-reusable with features to prevent users from accidentally stabbing themselves before or after use; insert the needle with preferred orientation; render is unusable after use; measure precise amounts of injected or withdrawn fluid and retract the needle with one finger after use.
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Citations
16 Claims
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1. An intravenous catheter needle fixture, including a needle, a body, and a protector case, wherein:
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I. said body and said protector case have; A. a first end and a second end; B. a needle mounted on said first end of said body; and C. a fluid container on said second end of said body; II. said protector case slidably containing said body, THE IMPROVEMENT COMPRISING; a. said body and said protector case mutually incorporating first and second detent means for holding said body within said protector case in first and second positions, respectively, whereby; 1. said needle is; A. removably wholly contained within said protector case in said first position; and B. extended for use in said second position; b. said body having thereon extensions with extremities defining an external first rectangular cross-section thereto; c. said protector case having; - View Dependent Claims (3, 7, 9, 11, 12)
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2. an external second rectangular cross-section;
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2. an internal third rectangular cross-section, complementary to said external first rectangular cross-section; and 3. said first end A. having an aperture therein through which said needle extends when said body is in said second position; and B. being shaped to promote optimum orientation of said needle for insertion in a patient, when said body is in said second position.
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4. An intravenous catheter needle fixture, including a needle, a body, and a protector case, wherein:
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I. said body and said protector case have; A. a first end and a second end; B. a needle mounted on said first end of said body; and C. a fluid container on said second end of said body; II. said protector case slidably containing said body, THE IMPROVEMENT COMPRISING; a. said body and said protector case mutually incorporating first and second detent means for holding said body, within said protector case in first and second positions, respectively, whereby; - View Dependent Claims (8)
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5. said detent means comprise a set of notches on said body, with corresponding inwardly extending fingers on said protector case that lock into said notches;
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2. said notches being shaped so as to allow extension from said second position to said first position with slight force applied by human fingertip and not readily allowing movement from said first position to said second position;
said needle is;A. removably wholly contained within said protector case in said first position; and B. extended for use in said second position; b. said body having thereon extensions with extremities defining an external first rectangular cross-section thereto; c. said protector case having; 1. an external second rectangular cross-section;
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6. an internal third rectangular cross-section, complementary to said external first rectangular cross-section;
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3. said first end; A. having an aperture therein through which said needle extends when said body is in said second position; and B. being shaped to promote optimum orientation of said needle for insertion in a patient, when said body is in said second position. - View Dependent Claims (10, 14, 15)
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13. A fixture for use with a needle including a body and a protector case and wherein the needle can be wholly contained within the protector case in a first position and extended and uncovered for use in a second position comprising
a body having first and second ends, the first end being adapted to have a needle mounted thereon for communication of fluid between the needle and body, the body having a finger boss near the first end thereof, said body further including extensions extending outward from the body with extremities defining an external first rectangular cross-section thereto, at least some of said extensions having grooves therein near the first end of said body forming a first detent for holding said case in the first position with respect to the body to contain a needle, and the body having further grooves toward the second end thereof forming a second detent for holding the case in the second position extended with respect to the body, and said protector case having an internal rectangular cross-section complimentary to said external first rectangular cross-section of the body and being slidably disposed with respect to said body and including a plurality of inwardly extending fingers near the second end thereof for engaging the detents of the body, and the case further having an elongated opening through which the finger boss of the body extends for allowing contact with a finger of a user for facilitating moving the case to the first position with respect to the body for containing a needle, and the case having a member at an end of the elongated opening engagable by the finger boss to function as a stop for the finger boss.
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16. A fixture for use with a needle including a body and a protector case and wherein the needle can be wholly contained within the protector case in a first position and extended and uncovered for use in a second position comprising
a body having first and second ends, the first end being adapted to have a needle mounted thereon for communication of fluid between the needle and body, the body having a finger boss near the first end thereof, said body having an external first rectangular cross-section thereto, and having grooves therein near the first end of said body forming a first detent for holding said case in the first position with respect to the body to contain a needle, and the body having further grooves toward the second end thereof forming a second detent for holding the case in the second position extended with respect to the body, said protector case having an internal rectangular cross-section complimentary to said external first rectangular cross-section of the body and being slidably disposed with respect to said body and including a plurality of inwardly extending fingers near the second end thereof for engaging the detents of the body, the case further having an elongated opening through which the finger boss of the body extends for allowing contact with a finger of a user for facilitating moving the case to the first position with respect to the body for containing a needle, and an end of the elongated opening of the case being engagable by the finger boss to function as a stop for the finger boss, and the grooves at the second end of the body having edges inclined toward the first end of the body to facilitate release of the fingers of the case therefrom when moving the case to the first position to contain a needle.
Specification