GEMA Technology

The GEMA device is the only therapeutic apheresis platform in Latin America developed and operated by the same medical organization that created it. Developed by Apheresis Technology, a company co-founded by NexusMed's Medical Director.

40–50 min
per session
~70 ml
extracorporeal vol.
850+
centers in the network
The device

A technology designed from clinical practice, not the other way around.

Conventional therapeutic apheresis requires large equipment, a central venous catheter, and sessions of 3 to 4 hours. GEMA was designed to remove these limitations without compromising the clinical efficacy of the procedure.

The result is a compact system that operates with peripheral venous access, reduces extracorporeal volume to ~70 ml, and completes each session in 40 to 50 minutes. Every GEMA unit is operated directly by the NexusMed medical team, with no technical-service intermediaries.

GEMA therapeutic apheresis device
GEMA · Apheresis Technology
GEMA device
40–50 min · Peripheral venous access · ~70 ml extracorporeal
GEMA in the medical team's words
Dr. Cristina Zumbana explains everything the GEMA platform makes possible.
Modular platform · With audio
NexusMed medical team operating the GEMA device
Operated by the same team that developed it
The device manufacturer is the medical team.
From Hemofenix to GEMA · Technical lineage
Two decades operating single-needle apheresis led to our own platform: optimized plasma exchange.
Plasma exchange · With audio
Measurable output
Every session ends with plasma removed, measured and recorded.

Cleared volume, session time and hemodynamic parameters are documented in the patient's clinical record.

Dr. Gerardo Zumbana holding plasma bags after an apheresis session
Apheresis session with the Hemofenix system, historical base of the NexusMed program
Program origin · Thousands of sessions
Clinical experience preceded the device.
The treatment room

One device, one physician, one protocol written in real time.

Every GEMA apheresis session is run with the physician at the patient's side. There are no outsourced technicians, no rotating operators. The clinician who designed the protocol is the one who adjusts the machine — flow, pressure, volume — based on the patient's response.

GEMA plasmapheresis session at NexusMed Clinical Center
Clinical session · Cumbayá
Detail of the GEMA panel during an active procedure
Control panel
Pressure · flow · volume, live
Clinical training around the GEMA device
Clinical demo
Training on setup and live flow
Peripheral access
No central catheter in most indications.
Extracorporeal volume
~70 ml compared to 400–500 ml in conventional systems.
Duration
40–50 minutes compared to the 3–4 hour international standard.
Clinical training of the NexusMed team around the GEMA device
Ongoing training · Ecuador
Every clinical operator undergoes an internal certification before touching the device with a patient.
40–50 min
Duration per session

Compared to 3–4 hours with conventional systems.

~70 ml
Extracorporeal volume

Compared to 400–500 ml with standard equipment.

Peripheral
Venous access

No central venous catheter in most indications.

550,000+
Procedures across the network

Data accumulated across more than 850 centers in a dozen countries.

Detail of the GEMA device during a clinical procedure
GEMA · in operation
Technical detail

Control panel and extracorporeal flow.

Every session monitors pressure, flow, and volume in real time. The operator — always a physician from our team — adjusts the parameters based on each patient's individual clinical response. No generic protocols.

Why it matters

Controlling the device changes the quality of the procedure.

No third-party dependence

Most apheresis centers depend on rented equipment or outside maintenance. When the equipment fails, treatment is delayed. NexusMed operates with its own technology: maintenance, calibration, and technical support are handled in-house.

Protocols refined with real data

The medical team that designed GEMA is the same one that operates it in every session. That creates a unique clinical feedback loop: data from every procedure directly informs the device's development. Few institutions in the world have that level of integration.

Lower burden for the patient

40–50 minutes versus 3–4 hours. Peripheral access versus central catheter. Extracorporeal volume of ~70 ml versus 400–500 ml. Each of these factors reduces the physiological stress of the procedure and improves tolerance, especially in multi-session protocols.

Clinical advantages

What GEMA changes in practice.

Session duration
GEMA40–50 min
Conventional3–4 hours
Venous access
GEMAPeripheral
ConventionalCentral catheter
Extracorporeal volume
GEMA~70 ml
Conventional400–500 ml
Patient comfort
GEMAHigh
ConventionalModerate
Operator control
GEMANexusMed team
ConventionalOutside provider
Maintenance
GEMAIn-house
ConventionalDependent on third parties
The company behind the device

Apheresis Technology · 850+ clinical centers.

GEMA is developed by Apheresis Technology, a company founded by the same medical team that leads NexusMed. With an operational presence in more than 850 clinical centers across a dozen countries, Apheresis Technology combines technology development with clinical experience accumulated over more than two decades.

This integration between the device manufacturer and the clinical center that operates it is unusual in the medical field. It allows NexusMed to maintain direct control over the quality of every procedure, refine protocols using real clinical data, and offer a technical continuity that other centers cannot replicate.

850+
Clinical centers
Active network
10+
Countries
Operational presence
25+
Years of development
Accumulated experience
Integration protocol

GEMA within the clinical protocol.

Apheresis is not the only element of a NexusMed protocol. GEMA is integrated into an individualized therapeutic plan that may include regenerative medicine, cell therapy, biomarker evaluation, and subsequent clinical follow-up.

Clinical note

GEMA does not replace conventional medical treatments. Its clinical indication is determined in consultation with the specialist physician based on each patient's medical history, biomarkers, and therapeutic goals.

Initial consultation

Is apheresis part of your protocol?

Only a clinical evaluation can determine that. The first step is a consultation with our Medical Director.

Book an evaluation
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