Biomedical subjects
H Laufman
Publications and source records attributed to H Laufman.
Postoperative wound infections and surgical face masks: a controlled study.
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Operating room environment--the surgeon's obligation.
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Is laminar airflow necessary for prophylaxis against wound infection?
Abuse of an otherwise properly installed and maintained operating room system may result in rendering the environment unsatisfactory for critical types of surgery, especially when a patient's resistance is lowered by disease or drugs, or when a large foreign body is implanted. No type of special air-handling system will correct these abuses even though it may reduce ambient bioparticle counts. From all available valid evidence, the conclusion is drawn that laminar flow is less effective against wound infection than adherence to proper techniques and correction of abuses of the operating room environment by the surgical team and support personnel.
Design, devices, and discipline in operating room infection control.
The prevention of surgical infection in the operating theatre is a complex pursuit. Every facet of activity, whether it is part of the surgical act itself or a remote activity with indirect effects on the surgical operation, constitutes part of the whole realm of infection control. These many facets may be divided into four main components, all interdependent: (a) the surgeon and his team (surgical technique; adherence to surgical anatomic, physiologic, and aseptic principles; discipline); (b) education and communiction--a functioning infections committee, repeated tutorials for all prefessional and technical operating room personnel, constant review of methods and systems, effective reporting of offenses, enforcement of discipline; (c) dependable support services--sterilizing techniques, barrier materials, apparel, laundry methods; materials handling and processing methods; efficiency and personal hygiene of all techincal and support personnel; discipline; and (d) environmental factors--architecture, engineering, and air handling; electrical and mechanical requirements; communication; discipline).
How are changes in surgical technology affecting the management of hospitals?
Changes in surgical technology and in the modes of delivering surgical care affect hospital management profoundly. Lack of appreciation of these changes has cost hospitals dearly over the past two decades. To plan better for the decade ahead, hospital CEOs must increase their awareness of the changes in the nature of surgical procedures and practices, the advances in surgical technology to which their individual hospital can adapt, and the newer trends in surgical department design and management practices. Awareness of these developments can serve as a springboard to predicting many of these changes to come. But every new advance must be studied individually to see how it fits into the practice patterns of a given hospital. The goal for the CEO is to have a maximally efficient, safe and productive surgical suite, satisfied patients and surgical staff, and a dependable profit center in the hospital.
AAMI state of the union message.
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Editorial: Focus on operating room devices.
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Trends in operating room devices.
Although trends in the use of operating room devices have generally followed advances in technology, the trends are not always influenced as much by surgical need as they are by industrial expediency and commercial promotion. Nonetheless, a broad view of trends in OR devices definitely points to efforts at greater compatibility between devices made by different manufacturers. To mention a few examples, operating tables are being made more compatible with OR X-ray equipment; surgical lighting is being designed for greater compatibility with air-handling systems and video equipment; power consoles have reduced the clutter of tubes, hoses, and wires in complicated operations, and have become more functional in keeping with the trend away from electrical power and toward nitrogen power for driving surgical tools; cabinetry is being designed to employ clean-air principles; and surgical apparel and barrier materials are undergoing close scrutiny for their effectiveness against moist bacterial strike-through in lengthy wet operations. Operating room devices form an important segment of the devices classified by the FDA, and are expected to benefit by the application of standards in performance and safety. This trend will affect not only the devices themselves, but all other facets of operating room design and engineering.
Bioengineering in medical schools of the United States and Canada: a survey.
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Current status of special air-handling systems in operating rooms.
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Editorial: Bioengineering in medical schools of the United States and Canada: a survey.
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Architectural and engineering aspects of the operating room environment.
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Editorial: Message from the President of the Association for the Advancement of Medical Instrumentation.
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A plan for management of unexpected bleeding problems related to surgery.
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A new bedside emergency resuscitation cart.
Existing bedside emergency resuscitation carts all have certain shortcomings, which interfere with the rapid, efficient care of the hospitalized patient in a catastrophic episode. A systems study was made of the performance criteria of such a cart under conditions which require its use. The primary result of the study was a new design for a bedside emergency resuscitation cart and a suggested list of emergency medications and equipment, every item of which is visible and available without opening drawers to search for it. It is suggested that such a cart, fully equipped, be kept on every nursing station and in every special care department of a hospital.
A new disposable bowie-Dick-type test pack for prevacuum high-temperature sterilizers.
A new, smaller disposable test pack has been devised to replace the stack of folded linen towels still widely used to test for air leaks in prevacuum high-temperature sterilizers. The new disposable pack allows more consistent and reproducible results to be obtained and small air leaks to be detected more readily. A single-use prepackaged item with uniform physical properties and performance characteristics, the disposable test pack eliminates (a) operator error and hence inconsistent results, (b) cost of replacing, processing, folding, wrapping, and laundering towels, and (c) errors caused by variations in test materials.
Classification of medical devices and priorities in standards-setting in the United States.
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