We care about your safety.

Our miniature pumps
in medical devices


With a reputation for being highly reliable, quiet and durable, Schwarzer Precision miniature pumps are used world-wide in sophisticated medical devices.

Our partners trust in the absolute precision and uncompromising quality of our work and products for use in this highly sensitive technology and every miniature pump that leaves our factory is fully tested and documented.

No matter how complex your requirements are, we will find the perfect pump solution for your application.


Application Stories

Capnometry: the medical technology specialist, Corscience, relies on miniature pumps from Schwarzer Precision

Our customer, Corscience develops medical systems and devices for national and international medical technology companies. They were looking for a pump that could provide a precise air flow for their capnometer.

Capnometers measure the CO2 levels in exhaled air. They are used to detect breathing problems in a patient during an operation or in intensive care. Therefore, capnometers are an essential part of the systems used to monitor the condition of patients.

Capnometers are also used in ambulances, where, in addition to maximum precision, their weight and energy consumption are also very important. Thanks to our close cooperation with Corscience, we were able to quickly customise our SP 100 EC diaphragm pump exactly to their requirements just when they needed it.

Furthermore, the particularly durable bearings and elastomers used in the SP 100 EC diaphragm pump as well as its robust design ensure that it is always a highly reliable component.

The eccentric diaphragm pump SP 100 EC is perfect for sidestream capnometry, where our miniature pump feeds breath samples to a sensor that measures the CO2 content.
© Corscience GmbH & Co. KG, Erlangen (www.corscience.com)

Small pump, complex requirements: the SP 270 EC in Negative Pressure Wound Therapy (NPWT)

Our SP 270 EC miniature diaphragm pump is used successfully in NPWT (Negative Pressure Vacuum Therapy)

NPWT / Negative Pressure Wound Therapy is a therapeutic treatment method that uses a vacuum pump to help wounds heal faster and more effectively.

A drainage is applied to the acute or chronically moist wound and sealed airtight with an adhesive film. The connected vacuum pump creates a controlled, localized negative pressure and evacuates wound secretion through the drainage. This cleans the wound, improves blood circulation and stimulates the growth of new blood vessels.

As the vacuum devices are often battery-operated and worn directly on the patient, the pumps used must meet high requirements. Only small precision pumps that are as light as possible come into consideration. In order to build up an intermittent negative pressure, the pump must be regulated precisely and reliably, and it must also have minimal power consumption. Due to the close-to-the-body operation, a pump that runs with very little noise and vibration is required at the same time.

A leading medical technology company therefore relies on miniature vacuum pumps from Schwarzer Precision. During the three-year development phase of the NPWT device, we continuously accompanied our customers and provided pump prototypes for initial tests within a very short time. For extensive testing of different device variants, we promptly delivered alternative pump types with specific modifications. Our customer went into series production with a specially adapted SP 270 EC eccentric diaphragm pump. This pump meets all final requirements in terms of performance and smoothness.

Schwarzer Precision is your competent partner who accompanies your medical technology projects over the long term - from the initial inquiry to market launch.

Endotracheal Intubation: Hamilton Medical relies on precision pumps from Schwarzer Precision

Reliable patient ventilation is a vital requirement in intensive care medicine, in anesthesia and when transporting patients. Even in critical situations, our eccentric diaphragm pumps ensure that the endotracheal tube fits perfectly in the trachea by precisely regulating the internal pressure of the cuff.

Endotracheal intubation requires a thin tube to be inserted into the patient's windpipe. To reduce the risk of secretions entering from the mouth, an inflatable silicone cuff at the bottom of the tube ensures that the trachea is completely sealed.

The Swiss company Hamilton Medical has developed the IntelliCuff®, a compact mobile device that can be used immediately without the need for prior calibration. Covering a wide range of cuff pressures for different endotracheal tubes, the IntelliCuff® monitors and maintains cuff pressure continuously to protect patients from ventilator associated pneumonia (VAP) and tracheal injuries.

To regulate the internal cuff pressure, Hamilton Medical required a compact, precision pump that could be accommodated in the small space available in the hand-held device, while also ensuring low-noise and an energy-efficient operation. Our eccentric diaphragm pump SP 270 EC-LC was chosen. In close cooperation with Hamilton Medical, we developed a special variant with reduced speed and stroke, that was perfectly adapted to all desired customer requirements.

(IntelliCuff® product page: www.hamilton-medical.com)

The IntelliCuff® from Hamilton Medical: inside, our SP 270 EC-LC miniature pump ensures precise cuff pressure. (Image source: Hamilton Medical, Switzerland)


Here are some of the medical technology applications in which Schwarzer Precision miniature pumps are used successfully:

  • Anaesthesiology
  • Anti-bedsore mattresses
  • Aspirator / surgical suction devices
  • Biopsy
  • Blood pressure measurement (inflation of arm cuffs)
  • Cellulitis therapy
  • Chiropody / podiatry / medical pedicure devices
  • Cleaning devices for hearing aids
  • Compression therapy (e.g. for lymphedema)
  • Cryotherapy (cold therapy)
  • Dialysis machines
  • Disinfection (hands, surfaces, equipment)
  • Endoscopy
  • Eye surgery (e.g. fixation of the lens or eyeball during surgery)
  • Incubators
  • Inhaled NO therapy
  • Irrigation pumps (irrigation for colostomy)
  • Nebuliser / inhaler
  • Operating theatre mannequins (circulation simulation)
  • Pneumatic scalpels
  • Pressure and suction supply for portable surgical devices
  • Prosthetics (e.g. vacuum fixing of limbs)
  • Respiratory gas analysis / spiroergometry / capnometry
  • Sleep disorders / sleep apnoea (respiratory arrest)
  • Thoracic drainage
  • Vacuum assisted closure (VAC) / negative pressure wound therapy (NPWT)
  • Vacuum technology (e.g. suction of ECG electrodes)
  • Ventilators / home ventilators
  • Wound drainage