Vacuum therapy (VAC / NPWT) is a therapeutic procedure for the treatment of acute and chronic wounds. Specially adapted NPWT pumps from Schwarzer Precision ensure fast and comfortable wound healing.
Wound treatment by vacuum - a well-known procedure
The vacuum treatment of wounds was already known in classical Greece. However, the "cupping therapy" of that time was still quite painful. The negative pressure was created by heat, the hot cupping vessels left swellings and bruises on the skin.
Today, the well-being of the patient is in the foreground. Modern medical technology has developed the VAC method into a painless and technically sophisticated wound treatment. VAC treatment ("Vacuum Assisted Closure", also called "NPWT / Negative Pressure Wound Therapy") was first used in the USA and Germany at the end of the 1980s. By using electronically regulated NPWT pumps, the wound secretion is drained from the sealed wound and the healing process is accelerated.
In modern VAC therapy, a drain is applied to the acute or chronically moist wound. This drainage consists of an open-pored polyurethane sponge which is sealed airtight, but permeable to water vapour, with an adhesive foil. Through a small hole in the foil, a tube leads to the NPWT pump, which is mounted in a compact VAC control unit.
The electronically regulated vacuum pump creates precisely controlled, periodically changing negative pressures that draw the wound secretions out of the drainage and clean the wound of blood and bacteria. The outer seal prevents ambient air from being drawn in and keeps the wound environment moist in a controlled manner - ideal conditions for rapid wound healing.
The suction effect of the vacuum reduces the wound edges (wound retraction) and thus accelerates the healing process. At the same time, the changing negative pressure stimulates the blood circulation of the tissue and promotes the sprouting of new vessels. Frequent dressing changes are no longer necessary, so that the patient can go about his or her daily life undisturbed.
Technical requirements for NPWT pumps
Mobile VAC units are worn directly on the patient's body. Therefore, the pump should only create minimal operating sound and vibrations so as not to disturb the patient's daily routine. Our particularly quiet NPWT pumps ensure maximum patient comfort. Thanks to their low power consumption, our pumps are ideal for battery-powered VAC units.
Typically, NPWT pumps not only work at a specific operating point, but also supply the wound with waxing and waning vacuum. In the therapy plan, the attending physician determines which alternating negative pressures are applied to the wound dressing. The NPWT vacuum pump must therefore be able to reliably provide intermittent vacuums over a defined period of time.
Our NPWT pumps are characterised by particularly precise controllability and an almost linear control characteristic - across their entire performance range.
The NPWT pump SP 240 EC-LC-SO proves successful in mobile VAC therapy
The miniature diaphragm pump SP 240 EC-LC-SO ("sound optimised") was specially developed for mobile NPWT/VAC treatment. The strict target was to reduce all operating noise and vibrations to an absolute minimum. With its patented noise reduction, this NPWT pump achieves a whisper-quiet running sound of only <35 dB(A) at a distance of 50cm. This is roughly equivalent to the silence of a bedroom at night - an important prerequisite to enable the patient both a healthy sleep and a high level of comfort in everyday life.
With a housing width of only 13 mm, this pump fits into even the smallest VAC control units. Its particularly low current consumption of 45 to max. 80 mA enables long battery runtimes as well as a reduction in the required battery size. The pump operates completely maintenance-free during its entire service life.
Even in stationary operation, this NPWT pump is ideally suited for use in sound-sensitive environments (e.g. sleep apnoea, mobile breathing gas monitoring, etc.).
In addition to our miniature pumps for mobile VAC units, we offer a comprehensive range of particularly powerful NPWT pumps for stationary VAC treatment. The pumps are characterised by a particularly long service life, perfect controllability, high reliability and complete freedom from maintenance.
Our vacuum pumps of the EC 600 series can be adapted exactly to the technical requirements of stationary VAC units. We supply you with single- and double-head diaphragm pumps in any desired performance range. For the motorisation of your NPWT pump, you have the choice between iron-core motors with ball bearings (e.g. SP 620 EC-DUp-VD) and particularly high-quality brushless motors (e.g. SP 622 EC-BL).
Depending on the control electronics used, the brushless pumps can be controlled either by PWM (pulse width modulation) or via a linear voltage. Built-in speed sensors ensure perfect controllability of the NPWT pump.
Particularly robust and quiet running: NPWT pump SP 622 EC-BL for stationary VAC treatment
Leading medical technology companies rely on NPWT pumps from Schwarzer Precision
The development of a new VAC device often takes a long time. Schwarzer Precision accompanies you continuously during your entire development phase with technically mature solutions, alternative suggestions and all-round high service quality - even over years.
Benefit from our decades of experience in the design of special medical pumps!
Perfect customer service and the highest product quality are our top priorities. Within a very short time, we provide our customers with various pump prototypes for initial tests. For extensive testing, we supply you with alternative pump types and specific modifications at short notice.
All parameters of our diaphragm pumps can be adapted exactly to your individual requirements. Our tried-and-tested modular system allows the rapid construction of countless pump variants with individually adapted performance data as well as a multitude of motorisations, installation variants and hose connections. We also adapt the materials for valves, diaphragms and seals individually to the required application.
We advise you specifically on all technical modifications, installation variants and hose connections. We also supply a comprehensive range of accessories. Up to series production, you will receive an ideally adapted NPWT pump that optimally and uncompromisingly fulfils your final requirements.
Schwarzer Precision is your reliable partner who accompanies your medical technology projects competently and with foresight - from the initial enquiry to the market launch of your product.
Our outstanding product and service quality will convince you - contact us!