Safety syringe

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A safety syringe is a syringe with a built-in safety mechanism to reduce the risk of needlestick injuries to healthcare workers and others. The needle on a safety syringe can be detachable or permanently attached. On some models, a sheath is placed over the needle, whereas in others the needle retracts into the barrel. Safety needles [1] serve the same functions as safety syringes, but the protective mechanism is a part of the needle rather than the syringe. Legislation requiring safety syringes or equivalents has been introduced in many nations since needlestick injuries and re-use prevention became the focus of governments and safety bodies.

Contents

In this model of safety syringe, the needle retracts into the barrel of the syringe after use. Sicherheitsspritze 010.JPG
In this model of safety syringe, the needle retracts into the barrel of the syringe after use.

Types

There are many types of safety syringes available on the market. [2] Auto Disable (AD) syringes are designed as a single use syringe, with an internal mechanism blocking the barrel once depressed so it cannot be depressed again. The other type of syringe with a re-use prevention feature is the breaking plunger syringe. An internal mechanism cracks the syringe when the plunger is fully depressed to prevent further use. These syringes are only effectively disabled with a full depression of the plunger; users can avoid activating the re-use prevention feature and re-use the syringe.

This syringe has a sliding needle guard Intradermal injection.jpg
This syringe has a sliding needle guard

The more effective safety syringes have reuse and needlestick prevention features. A sheath or hood slides over the needle after the injection is completed with a Needlestick Prevention Syringe, which also has a re-use prevention feature (either an auto disable mechanism or breaking plunger). Retractable syringes use either manual or spring-loaded retraction to withdraw the needle into the barrel of the syringe. Some brands of spring-loaded syringes can have a splatter effect, where blood and fluids are sprayed off the cannula from the force of the retraction. Manual retraction syringes are generally easier to depress because there is no resistance from a spring.

One model of safety syringe with deployable needle guard Needle safety demo.gif
One model of safety syringe with deployable needle guard

Alternatives

Traditional glass syringes can be re-used once disinfected. Plastic body syringes have become more popular in recent years because they are disposable. Unfortunately, improper disposal methods and re-use are responsible for transferring blood borne diseases. This issue arises often by accident due to medications being mixed or switched out with others. Data is collected through "Patient Notification" events whereby organizations inform patients of possible exposure. These organizations then offer bloodborne pathogen testing to affected individuals. [3]

Importance

Of the 55 cases documented by the CDC of (non-sex work) occupational transmission of HIV, 90% were from contaminated needles that pierced the skin. [4] The direct cost of needlestick injuries was calculated in a recent study to be between $539 and $672 million US dollars.[ clarification needed ] [5] That includes only lab tests, treatment, service and "other";[ clarification needed ] it does not take into account lost time and wages for employers and individuals.

Legislation

United States

Two lawyers, Mike Weiss and Paul Danzinger, were approached in 1998 by an inventor, Thomas Shaw, who was having trouble selling a safety syringe developed to protect health care workers from accidentally being infected by dirty needles. The problems were due to monopolistic actions of a major industry needle maker and hospital group purchasing organizations. The case was settled before trial for $150 million. [7] This was portrayed by the 2011 movie Puncture . [8] Shaw's attempts to get his retractable needle accepted by health care facilities were covered in a 2010 Washington Monthly article. [9]

Canada

Australia

Europe

Sharps Containers

An image of a sharps container. Improperly Discarded 'Sharps' Can Be Dangerous (6322401410).jpg
An image of a sharps container.

Sharps containers are devices used to collect small, sharp objects safely. The purpose of this is to properly dispose of contaminated items to limit exposure to workers nearby. These items often include needles, lancets, suture needles, and scalpels. These containers can collect broken glass for general disposal. However, general broken glass and needles potentially containing bloodborne pathogens should not be mixed and must be disposed of separately. [22]

The Occupational Safety and Health Administration requires that sharps containers be placed "Easily accessible to personnel and located as close as is feasible to the immediate area where sharps are used or can be reasonably anticipated to be found." (1910.1030(d)(4)(iii)(A)(2)(i) [23] This ensures that the containers are kept close to where syringes, needles, and other (often medical) sharps devices are used. By doing this, proper and safe disposal practices are adhered to.

The standard additionally references secondary containers, which are devices used to contain leakage or spillage. Oftentimes sharps placed in these containers still have small amounts of chemicals and medicines stored within them, posing a health and safety risk to workers if exposed. This leftover material is often known as "Dead Space". [24]

Disinfection/Decontamination

The decontamination process varies depending on the products and processes used. Many products, particularly sprays and aerosols, have a "contact time". The contact time is "...the time the product must be applied to the surface for it to be effective." [25] This ensures that the chemicals has adequately removed or killed the contaminant. These chemicals are often designed to protect against HIV, Hepatitis B, and Hepatitis C. The EPA has a list of approved safe chemicals that can be used, each with different bloodborne pathogens they protect against. The efficacy of these chemicals is verified by OCSPP 810.2200. [26]

See also

References

  1. "HMD Launches Single-Use Dispojekt Safety Needle to Prevent Injuries". Businesswireindia.com. Retrieved 30 June 2021.
  2. "Safe syringes for injection safety". World Health Organization. 2010-11-30. Archived from the original on December 14, 2007. Retrieved 2012-02-07.
  3. Schaefer, Melissa K.; Perkins, Kiran M.; Perz, Joseph F. (February 2020). "Patient Notification Events Due to Syringe Reuse and Mishandling of Injectable Medications by Health Care Personnel-United States, 2012-2018: Summary and Recommended Actions for Prevention and Response". Mayo Clinic Proceedings. 95 (2): 243–254. doi:10.1016/j.mayocp.2019.08.024. ISSN   1942-5546. PMC   7864048 . PMID   31883694.
  4. International Council of Nurses. "Health Care Worker Health and Safety: Preventing Needlestick Injury and Occupational Exposure to Bloodborne Pathogens" (PDF). World Health Organization.
  5. Jagger, Janine (1998). "Healthcare Direct Cost of Follow-up for Percutaneous and Mucocutaneous Exposures to At-Risk Body Fluids: Data From Two Hospitals" (PDF). Advances in Exposure Prevention. 3 (3). International Healthcare Worker Safety Center.
  6. "Needlestick Safety and Prevention Act". 106th Congress. Retrieved 25 February 2012 via U.S. Government Printing Office.
  7. "Syringe Manufacturer Settles Claim of Market Manipulation". The New York Times. 2004-07-03. Retrieved 25 November 2011.
  8. "Puncture (2011)". IMDb. Retrieved 25 February 2012.
  9. Blake, Mariah (July–August 2010). "Dirty Medicine". Washington Monthly. Retrieved 19 January 2020.
  10. "Laboratory Biosafety Guidelines 3rd Edition 2004 – Pathogen Regulation Directorate". Public Health Agency of Canada. 2011-02-18. Retrieved 2012-02-07.
  11. "OHS Guidelines Part 6 Substance Specific Requirements". Archived from the original on 2016-06-22. Retrieved 2012-02-07.
  12. "Occupational Health and Safety Code | Alberta.ca". www.alberta.ca. 2025-03-31. Retrieved 2025-04-03.
  13. "The Workplace Safety and Health Amendment Act (Needles in Medical Workplaces)". 2005-06-09. Retrieved 2012-02-07.
  14. "Labour Standards Information for the Restaurant and Foodservices Industry" (PDF). Saskatchewan Ministry of Labour Relations and Workplace Safety. Archived from the original (PDF) on 2012-03-28. Retrieved 2011-07-21.
  15. "Occupational Health and Safety Act – O. Reg. 474/07". 2010-07-01. Retrieved 2012-02-07.
  16. "Regulations – Safer Needles in Healthcare Workplaces" . Retrieved 2012-02-07.
  17. "Details Page". www1.health.nsw.gov.au. Retrieved 2025-04-03.
  18. "Managing exposures to blood and body fluids or substances". www.health.vic.gov.au. Retrieved 2025-04-03.
  19. "Management of occupational exposure to blood and body fluids – Infection prevention and control" (PDF). health.qld.gov. December 2024. Retrieved April 3, 2025.
  20. "Council Directive implementing the Framework Agreement on prevention from sharp injuries in the hospital and healthcare sector concluded by HOSPEEM and EPSU" (PDF). Council of the European Union.
  21. "Medical devices | European Medicines Agency (EMA)". www.ema.europa.eu. 2019-02-28. Retrieved 2025-03-25.
  22. "Sharps Disposal Containers". U.S. Food and Drug Administration. Center for Devices and Radiological Health. 2023-08-18. Archived from the original on April 30, 2019.
  23. "1910.1030 - Bloodborne pathogens. | Occupational Safety and Health Administration". www.osha.gov. Archived from the original on 2025-03-09. Retrieved 2025-03-13.
  24. Vassiliadis, Kim (2016-06-06). "Syringes are a surprising source of wasted medication". UNC News Archives. Retrieved 2025-03-13.
  25. "EPA's Registered Antimicrobial Products Effective Against Bloodborne Pathogens: Human immunodeficiency virus (HIV), Hepatitis B and Hepatitis C [List S]". www.epa.gov. 2024-02-21. Retrieved 2025-03-13.
  26. "Product Performance Test Guideline, OCSPP 810.2200, Disinfectants for Use on Environmental Surfaces, Guidance for Efficacy Testing". Regulations.gov. Feb 28, 2018. Retrieved 2025-03-13.

• Washington Monthly, Jul/Aug 2010, "Dirty Medicine"