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Chest Drainage System

Developed and manufactured in South Africa, the SINAPI CHEST DRAIN range aids recovery by improving drainage efficiency and promoting patient mobility

 SINAPI biomedical

Currently the devices are used in State and Private hospitals nation-wide and international interest has been expressed by countries such as Venezuela, Israel, Turkey, the Philippines and Japan.
The SINAPI CHEST DRAIN has numerous advantages over traditional Underwater Drainage bottles and existing 3-chamber systems. For more information on the SINAPI product range (Post Surgery, Trauma, Pediatric and Out-patient), visit:

SINAPI biomedical Chest Drainage Systems

What was the problem ? Providing greater patient mobility during chest drainage. Conventional ways of draining fluids from the chest is using an Under Water Drain (UWD). An UWD consists of a bottle filled with 500ml of water with tubing from the patient exiting beneath the water level. This provides a water seal, preventing fluids to flow back to the patient and maintaining a closed system. The disadvantage of this is that the bottle needs to be kept upright, lower than the patient and needs to be monitored frequently to ensure the tubing stays beneath the water level. It is also heavy to carry.
What was our idea ? Replacing the water seal Sinapi developed a state of the art one-way flutter valve to safely drain fluids and air from the thoracic space.
What did we need to know ? The characteristics of the fluids being drained through the valve (blood, air and other exudates) as well as identifying the essential functions of a chest drain unit was required.
How did we develop it ? More than 1000 flutter valve prototypes were built before achieving the required functionality (maintaining a positive seal at all times, maintaining an opening pressure of less than 2cm H2O pressure, swinging sideways as indication of negative pressure). Through market research and feedback six essential functions were identified for a chest drain and through further prototyping incorporated into the device.
How do we earn money from it ? First sales took place in the local market namely Western Cape Provincial hospitals. Thereafter PrivateHospital group Medi-Clinic accepted the product on their formulary list. The other two private hospital groups and national state hospitals followed suit and currently discussions are taking place in the US, Mexico, Philippines, Venezuela, Turkey and Japan.