This invention relates to sterilization appliances for use by end-users of syringes and, more particularly, to an appliance that utilizes a UV-C radiation in between syringe use to aid in sanitization prior to reuse.
The invention generally relates to sterilization appliances for use by end-users of syringes. Specifically the invention is involved with utilizing a UV-C radiation with a wavelength between 255 and 300 nm, and preferably about 280 nm, in between syringe use to aid in their sanitization prior to reuse.
When a person uses a syringe, a small quantity of blood is drawn into the syringe to determine if the needle has been properly located in the vein. Even when person then injects all of the needle's contents, a small residue of blood remains in the needle and syringe, which may not be visible. If a second person then uses this same needle and syringe for an injection, any residue in the syringe and needle may be transferred into the second user.
The goal of the present invention is to provide an inexpensive route for sanitizing syringes between uses with the goal of preventing cross contamination of blood. While current practices of utilizing bleach and filters aid in deactivating viruses, they are still unable to reach all the locations that blood is being deposited within the syringe and may not be readily available. Without making a radical change in the construction of a syringe, which undoubtedly would increase their cost, an active route must be found. The inventive sanitizer incorporates a germicidal UV-C light to aid in deactivating viruses found on the plunger and needle of the syringe. Inventors of the past have utilized UV-C light in various forms of utensils, however they were not designed for the personal syringe user to aid in virus/disease prevention.
The electromagnetic wave spectrum ranges from cosmic to radio. The UV region of the electromagnetic spectrum is situated between visible light and x-rays. The full UV radiation spectrum ranges from wavelengths of approximately 100 nanometers (nm) to 400 nm with the UV radiation spectrum being divided into 4 sections; vacuum UV radiation (100 nm to about 200 nm), UV-C radiation (called germicide or short-wave UV, 200 to 280 nm), UV-B radiation (called mid-wave, 280 nm to 320 nm), and UV-A radiation (black-light, or long wave UV, 320 nm to 400 nm).
UV radiation can be produced by sources such as light emitting diodes (LEDs), lasers, electric arcs, xenon bulbs, halogen bulbs, excimer bulbs, and mercury vapor lamps/tubes of low, medium and high pressures. UV-C radiation is used extensively for sterilization, purifying, and deodorizing applications in food, air, fluid, and general surface sterilization processes because the UV-C radiation deactivates micro-organisms such as: bacteria, molds, spores, fungi, and viruses.
Hepatitis C virus (HCV) is a small enveloped, positive-stranded RNA virus classified within the family Flaviviridae, genus Hepacivirus. HCV affects an estimated 170 million people worldwide and is a global health problem. Unlike most RNA viruses which usually cause acute diseases, HCV establishes life-long, persistent, intrahepatic infections in a majority of infected individuals, leading frequently to the development of cirrhosis and hepatocellular carcinoma. HCV is transmitted primarily via percutaneous exposure to infectious blood. HCV is capable of person-to-person transmission of via blood-contaminated objects and medical devices. UV light irradiation is a commonly used physical method for viral inactivation. UV-C with a wavelength range of 200-280 nm prevents viral replication by inducing formation of pyrimidine dimers in the viral genome.
Currently, injection of illicit drugs represents a major risk and a growing epidemic. It has been determined that HCVcc in culture medium (2.5×104 FFU/ml, volume depth of 0.2 cm) could be inactivated completely by UV-C irradiation at a dose of 2.7×10−2 J/cm2 within 1 min. Therefore, UVC light irradiation represents a highly effective means for inactivating HCV.
Certain patents and published patent applications teach similar design to the subject invention, but their use is not for the individual syringe user, contained in a non-stigma forming case and/or battery powered.
U.S. Patent Application No. 2010/0320405 filed by Gardner III and published on Dec. 23, 2010 for HANDHELD PORTABLE MULTI PURPOSE STERILIZING WAVELENGTH TRANSFORMING CONVERTER, describes a handheld portable multi-purpose device, for producing multiple and variable wavelength distributions of UV radiation, or visible radiation, comprising a primary UV radiation source and a system of wavelength transforming (WT) materials that allows selecting between UV A, UV B, and UV C radiation (individual selections or various combinations) and visible radiation.
U.S. Pat. No. 6,787,782 describes a system that utilizes UV radiation emitting LEDs as one source of UV radiation for sterilizing air in a vehicle. Similarly, U.S. Pat. No. 6,333,748 describes the use of UV radiation emitting LEDs in combination with a reactive surface to sanitize air for breathing inside a helmet.
U.S. Pat. No. 6,172,657 issued to Kamakura, et al. for BODY MOUNT-TYPE INFORMATION DISPLAY APPARATUS AND DISPLAY METHOD USING THE SAME issued on Jan. 9, 2001, describes a display unit attached to the head of a user and a control circuit unit attached to the waist or the shoulder. The display unit enables a light beam from the outside to enter the eyes of the user. Another light beam represents an image produced by the control circuit unit. The user can accordingly observe the image including required pieces of information for working together with the outside view. Available input means include magnetic and optical pointing devices and a CCD camera for reading a bar code. The control circuit unit that is not attached to the body may be connected with peripheral equipment and used as a desktop computer.
U.S. Pat. No. 4,952,369 issued to Belilos for ULTRAVIOLET DEVICE AND ITS USE issued on Aug. 28, 1990 describes an ultra-violet flashlight comprising a housing containing an ultra-violet light source, a power source, an on/off switch and a gravity switch, and a method for instantly sterilizing objects with which a person comes in contact comprising passing over said objects ultra-violet radiation from said flashlight.
World Patent Publication No. WO/2016/001776 by Messina, et al. for DEVICE FOR THE STERILISATION OF STETHOSCOPES published Jan. 7, 2016 describes a device for sanitizing medical instruments, in particular stethoscopes. The device comprises a case, a command and control unit, and a battery. The device comprising means for coupling to a stethoscope to be sanitized or sanitized, the coupling means being magnetic or electromagnetic or a mechanical coupling means. The outside of the case has a recess which forms an inverted cone, the base of which is open and substantially at the level of the outer surface of the case.
In accordance with one aspect of this invention, a plastic housing is attached to an “eyeglass case” using glue or other suitable adhesive. The plastic housing contains electronic circuitry, a UV-C bulb, batteries, and syringe supports. A UV-C bulb producing a wave length of approximately 275 nm is utilized along with commonly found batteries for power. The syringe rests in a holder with the plunger and needle thereof being inserted into a sanitization unit, which is covered with a clear window for safe inspection. The UV-C bulb is powered on by the press of a power button and operates via a timer for a set time interval.
A complete understanding of the present invention may be obtained by reference to the accompanying drawings, when considered in conjunction with the subsequent detailed description, in which:
FIG. A is a schematic view of a syringe, showing the parts thereof;
Like reference numerals refer to like parts throughout the several views of the drawings.
Although the following detailed description contains specific details for the purposes of illustration, those of ordinary skill in the art will appreciate that variations and alterations to the following details are within the scope of the invention. Accordingly, the exemplary embodiments of the invention described below are set forth without any loss of generality to, and without imposing limitations upon, the claimed invention.
Referring now to FIG. A, a conventional syringe 5 is shown. Syringe 5 has a body 6, a needle 7 extending therefrom, and a plunger 9 surrounded by a barrel 8.
Referring to
Parallel to syringe holder 14 and spaced apart therefrom is space for a plunger 18 to be secured to housing 10 by guides 20. The distal end of plunger 18 has a flat, circular plate 22 attached thereto. Parallel to syringe holder 14 is a battery compartment 26 and cover 28 associated therewith.
The proximal ends of syringe holder 14 and plunger 18 are inserted into a sterilization unit 24 having apertures formed therein to retain the respective proximal ends of syringe holder 14 and plunger 18. Sterilization unit 24, fabricated from translucent plastic in the preferred embodiment, allows a user to see if a “working light” 23 (
A power button 30 is disposed in an indention 32 of housing 10. Power button 30 is operatively connected to batteries 33 (
Referring now to
In operation, a user separates a syringe 5 into its needle/barrel portion 8 and its plunger portion 9. Batteries 33 are placed into battery compartment 26 to provide power to the electrical components. In the preferred embodiment, three size AAA 1.5 v batteries 33 are used to power the unit, but it should be noted the invention is not limited to the number, size, or quantity of batteries.
Needle/barrel 7, 8 slides snugly into the sheath portion of syringe holder 14. Plunger 9 snaps into the place for plunger 18 in housing 10 after plunger portion 9 enters sterilization unit 24.
When power button 30 is pressed, electrical circuitry 27 and components connected thereto are powered from batteries 33 and remain on for a predetermined interval, five minutes in the preferred embodiment. During this interval, syringe 5 is sanitized by UV-C light. The light from UV-C bulb 25 is green because it is a sign of “working/going” but also is able to be seen under black light which is important for drug users in countries that utilize black lights to prevent syringe use.
While only a few exemplary embodiments are hereinabove described, those knowledgeable in this science will easily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel and unique advantages of this disclosure. Accordingly, all such modifications and alternative are intended to be included within the scope of the invention as defined in the following claims. Those skilled in this science should recognize that such modifications and equivalent constructions or methods do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions, and alterations herein without departing from the spirit and scope of the present disclosure.
Since other modifications and changes varied to fit particular operating requirements and environments will be apparent to those skilled in the art, the invention is not considered limited to the example chosen for purposes of disclosure and covers all changes and modifications which do not constitute departures from the true spirit and scope of this invention.
Having thus described the invention, what is desired to be protected by Letters Patent is presented in the subsequently appended claims.
The present application is related to copending provisional patent application No. 62/339,984, for PORTABLE UV-C SYRINGE STERILIZER filed May 23, 2016, and hereby incorporates the teaching therein by reference.
Number | Date | Country | |
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62339984 | May 2016 | US |