infection prevention and workplace safety ... - event managers · solution: surgical smoke...
TRANSCRIPT
![Page 1: Infection Prevention and Workplace Safety ... - Event Managers · Solution: Surgical Smoke Extraction implemented in an a Laminar Flow Canopy Benefit: • Optimum protection of surgeons](https://reader035.vdocuments.site/reader035/viewer/2022071022/5fd6da06ac381825df487f2f/html5/thumbnails/1.jpg)
#HFMC17
Rupert Mack
Infection Prevention and Workplace Safety in Operating Theatres-
Airborne Particles and Bacteria Need a Re-evaluation in Existing Standards
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#HFMC17
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ISO 14644-3 (Class 5) ISO 14644-3 (Class 7)
Worldwide we differentiate two types of airflow
Unidirectional Airflow Turbulent Mixing Ventilation
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(German DIN 1946-4 Class Ib, Dilution Mixing System)- No protected zone/area- 20-25 ACH or > 60 m3/m2xh- Recovery-Time < 25 min (Particles 100:1 recovery)
Turbulent Mixing Ventilation (ISO 14644-3 Class 7)
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(German DIN 1946-4 Class Ib, Dilution Mixing System)- No protected zone/area- 20-25 ACH or > 60 m3/m2xh- Recovery-Time < 25 min. (Particles 100:1 recovery)
Turbulent Mixing Ventilation (ISO 14644-3 Class 7)
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(German DIN 1946-4 Class Ia, Laminar Flow, Low Turbulent Displacement Flow)- Protected Zone System- 300-400 ACH in protected zone- Recovery-Time < 0,5 min (Particles 100:1 recovery)
Unidirectional Airflow (ISO 14644-3 class 5)
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(German DIN 1946-4 Class Ia, Unidirectional Airflow, Laminar Flow, Low Turbulent Displacement Flow)- Protected Zone System- 300-400 ACH in protected zone- Recovery-Time < 0,5 min (Particles 100:1 recovery)
Unidirectional Airflow (ISO 14644-3 class 5)
Size of Protected Zone signed on the floor
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Video shows the Unidirectional Downflow:- the segregation of the protected
zone from the periphery area by preventing entrainment of ambient room air.
- Washing out within half a minute (downflow)
Tasks of a Unidirectional Airflow Protection of wound area, instruments and sterile clothed personnel(Size of protected zone: acc. Positioning Analyses, min. 3 x 3 m)
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Benefit:
• Reduction of energy consumption by
recirculation
• Reduction of the duct profile coming
from the air-conditioning unit
• Air f low rate adjustment possible
independently of air -conditioning unit
and duct system
• For retrofitt ing of existing installations
Diagram of a modern protected zone system (Unidirectional Airflow)
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Issue Workplace Safety: Health risks for surgeons due to surgical smoke
Surgical Smoke:- Arises from High Frequency (HF) Surgery- Emerging health risks of surgeons due to increasing numbers of HF-surgeries
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Study:Tjeerd de Boorder et. al. Netherlands
Health risks for surgeons due to surgical smoke. Study Netherlands
The consistence of surgical smoke is more harmful than cigarette smoke !!
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Health risks for surgeons due to surgical smoke. Study China
Breathing in of surgical smoke half a minute is equivalent of smoking one cigarette !!!
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Benefit:• Laminar flow pushes the surgical smoke down to the origin
(Turbulent Mixing Flow can not!)
• Odors, aerosols nanoparticles and other hazardous particles are
transported into the open (no recirculating)
• Low noise emission as pump is outside the operating theatre
Solution: Surgical Smoke Extraction implemented in an a Laminar Flow Canopy
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Solution: Surgical Smoke Extraction implemented in an a Laminar Flow Canopy
Benefit:• Optimum protection of surgeons against particles,
aerosols, nanoparticles and other hazardous substances
• Clear view thanks to direct extraction and possibility to
work independently without additional staff (nurse)
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Unidirectional Airflow Turbulent Mixing Ventilation
Issue Infection Prevention:Comparison in terms of Airborne Bacteria!
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Study: Turbulent Mixing Ventilation compared with Unidirectional Displacement Flow
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Study: “Reduction of Airborne Bacterial Burden in the OR by Installation of Unidirectional Airflow “
Result: “Protected Zone Systems“ (Unidirectional Airflow) reduces the bacterial burden by more than 90 %.
Unidirectional Airflow
Turbulent Mixing Ventilation
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Lay-up preparation room/area (for instruments)
„Rooms/areas where sterile packed instruments are opened, stored, checked and arranged on the trollies must have the same air cleanliness as they have during surgery“
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Innovation: Continuous Particle Monitoring
Keep an eyeon instruments
Show the cleanliness
Quality control andrisk management
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Benefit:• Prevention of infection through the continual
monitoring of the air quality
• Light-screen display to show the current air quality
• Increasing awareness among the surgical staff and
protection of the sterile chain
• Clean air supply adapted to suit requirements
• Quality management possible for every operationthanks to documentation
Diagram of a contiuous particle monitoring system (CPM)
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Video shows how Continuous Particle Monitoring works
Video CPM
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Glass Flow Stabilizer
Air Curtain System Complenate and Screenless
Innovation avoids the risk of collision
The longer the glass pane the larger the protection zoneThe longer the glass pane the bigger the risk of collision (lights pendants)
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Modern Design of an Operating Theater
UnidirectionalAirflowCanopy
Protected Zone
Continuous ParticleMonitoring
Air curtainsystem
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Summery:
- Unidirectional Airflow (Laminar Airflow) only assures a Protected Zone/Area
- Protected Zone/Area has to cover wound (situs), personnel as well as instruments (min. 3m x 3m)
- Protection Zone/Area only meets the requirements referring to nowadays issues Infection Prevention and Workplace Safety (Surgical Smoke)
- Existing Standards are behind and have to be re-evaluated (… as long lasting we can not wait !!)
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Thank you for yourAttention
Rupert Mack