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Surgical Assist Robot (under development) Toward a Truly Intuitive Robotic Surgery

Surgical Assist Robot (under development)

ABOUT

The world's first surgical assist robot that reproduces the "sense of force"

Riverfield is currently developing a surgical assist robot with a force feedback function.

CONCEPT

The ideal surgery is completed when not only the primary surgeon but also the assistant physicians perform at their best.
Reproducing the sense of force is expected to improve operability.
In addition, the design of a compact structure makes it easier for assistant physicians.


Some of the products introduced here include ones that have not yet been approved under the Pharmaceuticals and Medical Devices Act.
Such products may not be sold or granted in any form. The information contained herein is subject to change as it contains information that is still under development.

FEATURE

Force Feedback

Estimation of three force senses applied to forceps

Conventional surgical assist robots rely solely on visual information obtained from camera images. This product, however, is equipped with a system that estimates the three forces of forceps, “gripping force = grasping force,” “touching force = tactile force,” and “pulling force = traction force,” from control information and feeds them back to the remote control interface.

Gripping force = Grasping force Touching force = Tactile force Pulling force = Traction force
Gripping force = Grasping force Touching force = Tactile force Pulling force = Traction force

Direct feedback to forceps operating handle

This product converts the “three force senses” obtained from forceps into electrical signals.
Based on the signal, the sense of force is fed back directly to the operating handle, allowing the surgeon to perform surgery while feeling the sense of force.

Forceps operating handle that directly conveys the sense of gripping
Forceps operating handle that directly conveys the sense of gripping

Two Monitors

The control unit of this product has two monitors: a Main monitor that displays images from the endoscope and a Navigation monitor that displays the sense of force and other information.

Main monitor capable of stereoscopic viewing

The Main monitor also supports 3D display, and stereoscopic viewing is possible by wearing special 3D glasses.
We strive to provide a more realistic view during the procedure by seeing the endoscopic images in stereoscopic viewing.

It is also possible to switch between 2D and 3D displays by changing settings.

Information displayed on the navigation monitor

In addition to the Main monitor that displays images from the endoscope, the control unit of this product is equipped with a Navigation monitor that displays the sense of force obtained from the forceps and other information.

The Navigation monitor displays force senses intuitively using gauges and bar graphs as well as quantitative values (Newton number) to support the procedure from both a numerical and sensory perspective, making it possible to provide operating information to physicians and nurses other than the primary surgeon.

Displaying force sense with numbers, gauges, etc.
Displaying force sense with numbers, gauges, etc.

Lightweight and Compact

Pneumatic drive is more compact than conventional electric drive, which made this product lightweight and compact, with a height of approximately 150 cm and weight of approximately 450 kg. This allows it to be used in smaller, non-specialized operating rooms and to be moved between operating rooms and within a facility for more flexible operation.

The compact size provides more working space for the assistant.
The compact size provides more working space for the assistant.