HYPODERMIC SYRINGE HOLDER AND APPLICATOR

• US 3,811,442 A
• Filed: 03/23/1972
• Issued: 05/21/1974
• Est. Priority Date: 03/23/1972
• Status: Expired due to Term

• Current Assignee: Arthur M. Maroth
• Original Assignee: Arthur M. Maroth
• Inventors: Maroth, Arthur M.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): McGowan, J. C.
• Application Number:
  US05/237,440
• Time in Patent Office: 789 Days
• Field of Search: 128/2B,218R,218A,DIG.1,305,310,347,221 32/26-31 310/DIG.8,59,50 30/133,500,240
• US Class Current: 604/188
• CPC Class Codes: A61M 2005/3289 with rotation of the needle, e.g. to ease penetration
• CPC Class Codes: A61M 5/20 Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically A61M5/142 , A61M5/46 take precedence; hypodermic projectiles F42B12/54
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings
• CPC Class Codes: Y10S 128/01 Motorized syringe

Abstract

A holder-applicator device for a needle-carrying hypodermic syringe by which there is greatly facilitated the introduction of the hypodermic needle into animal tissue or flesh. The device has a motor for rotatably mounting the syringe body in such a way that the needle thereof projects at a forward location and can be conveniently applied to the desired area. The motor includes a battery supply for the same, by which a turning, driving force is supplied to the syringe and needle to effect a rapid turning of the same about their common axis. Such turning of the needle enables it to penetrate into animal tissue or flesh much more effectively than heretofore and with a minimum of axial force being required, thereby greatly reducing discomfort or pain. Upon penetration of the needle being effected, the motor is made inoperative. Thereafter the injection is effected by the usual operation of depressing the plunger of the syringe. Further, the hypodermic needle differs from existing needles in that it has a sharp, conical solid point, and in that the discharge openings of the needle are in the side walls thereof disposed immediately behind the solid conical point.

Claims

1. Means for facilitating the introduction of a hypodermic needle into animal tissue, comprising in combination:

a. a carrier device, b. a hollow hypodermic needle having a sharp, imperforate pointed and conical tip portion and having a side opening spaced back of said conical tip portion and constituting a discharge orifice, c. means for rotatably mounting said needle on said carrier device with the conical tip thereof disposed in a projecting position, d. second mounting means on said carrier device, for applying a turning, driving force to said needle to effect a rapid turning thereof about its axis, thereby enabling a penetration of the needle into said animal tissue to be effected with a minimum of axial force and discomfort, and e. a hypodermic syringe supported by said second mounting means and carrying said needle, f. said carrier comprising a casing having bearing means receiving and turnably supporting the syringe and the needle carried thereby, g. powering means connected to said second mounting mEans to activate the latter.

2. A device as set forth in claim 1, wherein:

a. the powering means comprises an electric motor and a battery supply for energizing the same, and b. gearing connected with said motor, to transfer force therefrom to the needle.

3. A device as set forth in claim 2, wherein:

a. said gearing comprises a worm secured to the motor shaft, and comprises a set of cooperable spur gears one of which is connected to the needle to turn the latter, and b. a worm gear engaged with said worm and connected to drive the other of said spur gears.

4. A device as set forth in claim 2, wherein:

a. the battery supply comprises a single dry-cell battery disposed alongside and closely juxtaposed to the electric motor, b. said battery and motor having their axes substantially parallel, c. said battery having a diameter on the order of approximately one-half the diameter of the motor, d. a casing enclosing said motor and battery, e. a pushbutton switch carried by the casing at that side of the motor which is opposite from the side adjacent to the battery, f. said casing having a large-diameter body portion surrounding the motor and having a small-diameter body portion surrounding the battery, g. said small diameter portion of the casing being engageable with the user'"'"''"'"'s hand between the thumb and forefinger thereof when the casing is held in the manner of a pistol grip, with the middle finger arranged to actuate said electric switch.

5. A device as in claim 1, wherein:

a. the second mounting means for applying a turning force to the needle comprises a spur gear having a relatively large bore adapted to receive the syringe body, and b. an O-ring being carried in the bore of the spur gear.

6. Means for facilitating the introduction of a hypodermic needle into animal tissue, comprising in combination:

a. a carrier device, b. a hollow hypodermic needle having a sharp, imperforate pointed and conical tip portion and having a side opening spaced back of said conical tip portion and constituting a discharge orifice, c. means for rotatably mounting said needle on said carrier device with the conical tip thereof disposed in a projecting position, and d. powering means on said carrier device for applying a turning, driving force to said mounting means to effect a rapid turning of the needle about its axis, thereby enabling a penetration of the needle into said animal tissue to be effected with a minimum of axial force and discomfort, e. said mounting means comprising a syringe mounting the needle and an O-ring turnable in the carrier about an axis in alignment with the axis of the syringe, f. said O-ring slidably receiving and frictionally gripping the barrel of the syringe to impart turning force thereto.