Assessment of Residual Moisture and Maintenance of Sterility in Surgical Instrument Sets after Sterilization

2015 ◽  
Vol 36 (8) ◽  
pp. 990-992 ◽  
Author(s):  
Camille Fayard ◽  
Christophe Lambert ◽  
Catherine Guimier-Pingault ◽  
Marion Levast ◽  
Raphaelle Germi
Keyword(s):  
Laboratory Study ◽  
Infect Control Hosp ◽  
Surgical Instruments ◽  
Residual Water ◽  
Small Laboratory ◽  
Surgical Instrument ◽  
Steam Sterilization ◽  
Residual Moisture

AbstractGood sterilization practices include discarding items containing residual moisture after steam sterilization. In this small laboratory study, however, the presence of residual water did not appear to compromise the sterility of surgical instruments in 2 commonly used types of packaging during routine storage after steam sterilization.Infect Control Hosp Epidemiol 2015;36(8):990–992

scholarly journals Does Blood on “Dirty” Instruments Interfere With the Effectiveness of Sterilization Technologies?

2020 ◽  
Vol 41 (S1) ◽  
pp. s194-s195
Author(s):  
William Rutala ◽  
Maria Gergen ◽  
David Jay Weber
Keyword(s):  
Disease Transmission ◽  
Surgical Instruments ◽  
Healthcare Personnel ◽  
Geobacillus Stearothermophilus ◽  
Surgical Instrument ◽  
Steam Sterilization ◽  
Bacillus Atrophaeus ◽  
Gas Plasma ◽  
Test Organisms ◽  
Sterilization Process

Background: Surgical instruments that enter sterile tissue should be sterile because microbial contamination could result in disease transmission. Despite careful surgical instrument reprocessing, surgeons and other healthcare personnel (HCP) describe cases in which surgical instruments have been contaminated with organic material (eg, blood). Although most of these cases are observed before the instrument reaches the patient, in some cases the contaminated instrument contaminates the sterile field, or rarely, the patient. In this study, we evaluated the robustness of sterilization technologies when spores and bacteria mixed with blood were placed on dirty (uncleaned) instruments. Methods: Dirty surgical instruments were inoculated with 1.5105 to 4.1107 spores or vegetative bacteria (MRSA, VRE or Mycobacterium terrae) in the presence or absence of blood. The spores used were most resistant to the sterilization process tested (eg, Geobacillus stearothermophilus for steam and HPGP and Bacillus atrophaeus for ETO). Once the inoculum dried, the instruments were placed in a peel pouch and sterilized by steam sterilization, ethylene oxide (ETO), or hydrogen peroxide gas plasma (HPGP). These experiments are not representative of practice or manufacturer’s recommendations because cleaning must always precede sterilization. Results: Steam sterilization killed all the G. stearothermophilus spores and M. terrae when inoculated onto dirty instruments in the presence or absence of blood (Table 1). ETO failed to inactivate all test spores (B. atrophaeus) when inoculated onto dirty instruments (60% failure) and dirty instruments with blood (90% failure). ETO did kill the vegetative bacteria (MRSA, VRE) under the same 2 test conditions (ie, dirty instruments with and without blood). The failure rates for HPGP for G. stearothermophilus spores and MRSA were 60% and 40%, respectively, when mixed with blood on a dirty instrument. Conclusions:This investigation demonstrated that steam sterilization is the most robust sterilization process and is effective even when instruments were not cleaned and the test organisms (G. stearothermophilus spores and MRSA) were mixed with blood. The low-temperature sterilization technologies tested (ie, ETO, HPGP) failed to inactivate the test spores but ETO did kill the test bacteria (ie, MRSA, VRE). These findings should assist HCP to assess the risk of infection to patients when potentially contaminated surgical instruments enter the sterile field or are unintentionally used on patients during surgery. Our data also demonstrate the importance of thorough cleaning prior to sterilization.Funding: NoneDisclosures: Dr. Rutala was a consultant to ASP (Advanced Sterilization Products)

scholarly journals Sensors in the Autoclave-Modelling and Implementation of the IoT Steam Sterilization Procedure Counter

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 510
Author(s):  
Lukas Boehler ◽  
Mateusz Daniol ◽  
Ryszard Sroka ◽  
Dominik Osinski ◽  
Anton Keller
Keyword(s):  
The Body ◽  
Surgical Instruments ◽  
Sensor System ◽  
Temperature Profiles ◽  
Measured Temperature ◽  
Steam Sterilization ◽  
Automated Evaluation ◽  
Normative Requirements ◽  
Thermal Simulations ◽  
The Relationship

Surgical procedures involve major risks, as pathogens can enter the body unhindered. To prevent this, most surgical instruments and implants are sterilized. However, ensuring that this process is carried out safely and according to the normative requirements is not a trivial task. This study aims to develop a sensor system that can automatically detect successful steam sterilization on the basis of the measured temperature profiles. This can be achieved only when the relationship between the temperature on the surface of the tool and the temperature at the measurement point inside the tool is known. To find this relationship, the thermodynamic model of the system has been developed. Simulated results of thermal simulations were compared with the acquired temperature profiles to verify the correctness of the model. Simulated temperature profiles are in accordance with the measured temperature profiles, thus the developed model can be used in the process of further development of the system as well as for the development of algorithms for automated evaluation of the sterilization process. Although the developed sensor system proved that the detection of sterilization cycles can be automated, further studies that address the possibility of optimization of the system in terms of geometrical dimensions, used materials, and processing algorithms will be of significant importance for the potential commercialization of the presented solution.

Management of surgical instruments with radio frequency identification tags

2016 ◽  
Vol 29 (2) ◽  
pp. 236-247 ◽  
Author(s):  
Kaori Kusuda ◽  
Kazuhiko Yamashita ◽  
Akiko Ohnishi ◽  
Kiyohito Tanaka ◽  
Masaru Komino ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Management System ◽  
Surgical Instruments ◽  
Rfid Tags ◽  
Surgical Instrument ◽  
Content Type ◽  
History Of ◽  
Frequency Identification ◽  
Identification Tags

Purpose – To prevent malpractices, medical staff has adopted inventory time-outs and/or checklists. Accurate inventory and maintenance of surgical instruments decreases the risk of operating room miscounting and malfunction. In our previous study, an individual management of surgical instruments was accomplished using Radio Frequency Identification (RFID) tags. The purpose of this paper is to evaluate a new management method of RFID-tagged instruments. Design/methodology/approach – The management system of RFID-tagged surgical instruments was used for 27 months in clinical areas. In total, 13 study participants assembled surgical trays in the central sterile supply department. Findings – While using the management system, trays were assembled 94 times. During this period, no assembly errors occurred. An instrument malfunction had occurred after the 19th, 56th, and 73th uses, no malfunction caused by the RFID tags, and usage history had been recorded. Additionally, the time it took to assemble surgical trays was recorded, and the long-term usability of the management system was evaluated. Originality/value – The system could record the number of uses and the defective history of each surgical instrument. In addition, the history of the frequency of instruments being transferred from one tray to another was recorded. The results suggest that our system can be used to manage instruments safely. Additionally, the management system was acquired of the learning effect and the usability on daily maintenance. This finding suggests that the management system examined here ensures surgical instrument and tray assembly quality.

Sharp and telling

2018 ◽  
Vol 31 (3) ◽  
pp. 547-562
Author(s):  
Karin Tybjerg
Keyword(s):  
Surgical Instruments ◽  
First Century ◽  
Surgical Instrument ◽  
The Public ◽  
Public Displays ◽  
Historical Collections ◽  
Teaching Aids ◽  
Early Twenty ◽  
History Of ◽  
The University

Abstract Surgical instrument collections have been used in a multitude of ways – as tools, taxonomies, teaching aids, representation, historical highlights and public displays – and they provide a key to understanding the shifting relations between surgery, medical museums and medical history. Tracing the uses of the surgical instrument collections from the Royal Danish Academy of Surgery and the Medical Historical Museum at the University of Copenhagen reveals a network of disciplinary and institutional changes from the late nineteenth to early twenty-first century. The history of the collections maps relations between scientific and cultural historical collections and between medicine and history. In the same way as surgical instruments have connected the surgeon’s hand to the patients’ body, the surgical instrument collections connect together the public, medical practice and history.

Toward a Knowledge-Driven Context-Aware System for Surgical Assistance

2017 ◽  
Vol 02 (03) ◽  
pp. 1740007 ◽  
Author(s):  
Hirenkumar Nakawala ◽  
Giancarlo Ferrigno ◽  
Elena De Momi
Keyword(s):  
Image Processing ◽  
Surgical Training ◽  
Contextual Information ◽  
Surgical Instruments ◽  
Context Aware ◽  
Semantic Technologies ◽  
Surgical Instrument ◽  
Test Scenario ◽  
Surgical Assistance ◽  
Context Aware System

Complex surgeries complications are increasing, thus making an efficient surgical assistance is a real need. In this work, an ontology-based context-aware system was developed for surgical training/assistance during Thoracentesis by using image processing and semantic technologies. We evaluated the Thoracentesis ontology and implemented a paradigmatic test scenario to check the efficacy of the system by recognizing contextual information, e.g. the presence of surgical instruments on the table. The framework was able to retrieve contextual information about current surgical activity along with information on the need or presence of a surgical instrument.

scholarly journals Design of a Surgical Port for Minimally Invasive Beating-Heart Intracardial Procedures

2011 ◽  
Vol 5 (4) ◽  
Author(s):  
Christopher M. DiBiasio ◽  
Keith V. Durand ◽  
Jonathan Hopkins ◽  
Zach Traina ◽  
Alexander H. Slocum ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Surgical Procedures ◽  
Beating Heart ◽  
Surgical Instruments ◽  
Direct Access ◽  
Surgical Instrument ◽  
System A ◽  
Pulmonary Bypass ◽  
Heart Wall ◽  
Rapid Tool

Direct-access, minimally invasive, beating-heart intracardial procedures have the potential to replace many traditional surgical procedures requiring cardio-pulmonary bypass as long as micro-emboli are prevented from entering the cardiovascular system. A new surgical port was developed to introduce surgical instruments into chambers of the beating heart during minimally invasive, intracardial surgical procedures without allowing the introduction of micro-emboli 0.1 mm or larger in size. The design consists of an outer port body that is secured to the heart wall using a purse string suture and a series of inner tubular sleeves that form the interface between the port and the transecting instrument. The design enables rapid tool changes and accommodates a wide variety of instruments. The port uses a fluid purging system to dislodge and remove emboli from a surgical instrument. Laboratory and clinical tests show that the port adequately seals around a surgical instrument and prevents the introduction of emboli with diameters greater than 0.1 mm into the heart while minimizing hemorrhage.

scholarly journals Polyp and Surgical Instrument Segmentation with Double Encoder-Decoder Networks

2021 ◽  
Vol 1 (1) ◽  
pp. 5-7
Author(s):  
Adrian Galdran
Keyword(s):  
Neural Network ◽  
Optimization Procedure ◽  
Experimental Results ◽  
Surgical Instruments ◽  
Surgical Instrument ◽  
Post Processing ◽  
Endoscopic Images ◽  
Good Agreement

This paper describes a solution for the MedAI competition, in which participants were required to segment both polyps and surgical instruments from endoscopic images. Our approach relies on a double encoder-decoder neural network which we have previously applied for polyp segmentation, but with a series of enhancements: a more powerful encoder architecture, an improved optimization procedure, and the post-processing of segmentations, based on tempered model ensembling. Experimental results show that our method produces segmentations that show a good agreement with manual delineations provided by medical experts.

Assessment of surgical instrument bioburden after steam sterilization: A pilot study

2020 ◽  
Vol 48 (2) ◽  
pp. 219-221 ◽  
Author(s):  
Marisol Resendiz ◽  
Timothy S. Horseman ◽  
Andrew J. Hover ◽  
David F. Bradley ◽  
Michael B. Lustik ◽  
...  
Keyword(s):  
Pilot Study ◽  
Surgical Instrument ◽  
Steam Sterilization

scholarly journals Prediction of the service life of surgical instruments from the surgical instrument management system log using radio frequency identification

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Takeki Yoshikawa ◽  
Eizen Kimura ◽  
Emi Akama ◽  
Hiromi Nakao ◽  
Toshihiro Yorozuya ◽  
...  
Keyword(s):  
Service Life ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Surgical Instruments ◽  
Management Systems ◽  
Rfid Tags ◽  
Distribution Analysis ◽  
Surgical Instrument ◽  
History Of ◽  
Frequency Identification

Abstract Background Bar code- or radio frequency identification (RFID)-based medical instrument management systems have gradually been introduced in the field of surgical medicine for the individual management and identification of instruments. We hypothesized that individual management of instruments using RFID tags can provide previously unavailable information, particularly the precise service life of an instrument. Such information can be used to prevent medical accidents caused by surgical instrument failure. This study aimed to predict the precise service life of instruments by analyzing the data available in instrument management systems. Methods We evaluated the repair history of instruments and the usage count until failure and then analyzed the data by the following three methods: the distribution of the instrument usage count was determined, an instrument failure probability model was generated through logistic regression analysis, and survival analysis was performed to predict instrument failure. Results The usage count followed a normal distribution. Analysis showed that instruments were not used uniformly during surgery. In addition, the Kaplan–Meier curves plotted for five types of instruments showed significant differences in the cumulative survival rate of different instruments. Conclusions The usage history of instruments obtained with RFID tags or bar codes can be used to predict the probability of instrument failure. This prediction is significant for determining the service life of an instrument. Implementation of the developed model in instrument management systems can help prevent accidents due to instrument failure. Knowledge of the instrument service life will also help in developing a purchase plan for instruments to minimize wastage.

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