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Morpheus™ robot-assisted system is shaping intraoperative radiotherapy

Empyrean Medical Systems is on the way to revolutionizing cancer therapy with the Morpheus™ medical device. Morpheus™ can be used to carry out pinpoint irradiation of tumors in the body and thus protect surrounding healthy tissue. The integrated KUKA LBR Med robot for medical technology plays a decisive role here.


Unique robotic application enables intraoperative radiation therapy

Empyrean Medical Systems specializes in the development of highly effective, non-invasive, minimally invasive and cost-effective treatments for oncological and non-oncological conditions. Based in Boca Raton, Florida, the company has developed the Morpheus™, which is a system for directional anisotropic (meaning irregular) radiation therapy (ART) and a product that is both exceptional and unique in many respects. It enables the targeted treatment of cancer patients in an intraoperative manner. “It is also the first system that enables doctors to shape the beams into specific geometries, execute a three-dimensional alignment, and effectively and intensively irradiate a tumor or tumor areas. That minimizes the impact on surrounding organs and tissue,” explains Kal Fishman, co-founder of Empyrean Medical Systems.

Precision and flexibility thanks to robot-assisted radiation system

Fishman also stresses that there would be no Morpheus™ in this form without the LBR Med. “The robot allows us to achieve anatomically exact positioning of the beam source. No one else on the market offers this kind of precision and flexibility,” explains the co-founder of Empyrean Medical Systems. The cooperation between Empyrean Medical Systems and KUKA has become closer over the years. A partnership has developed that goes well beyond the development of the ART system. “KUKA was very patient with us and provided us with a lot of support during development – particularly when it came to the integration of the robot and the collaboration,” notes a contented Fishman.
The integrated LBR Med gives Morpheus™ unique precision to protect healthy tissue.

Protect the surrounding tissue with robot-assisted intraoperative radiotherapy

Other systems work with a linear beam that is directed at the tumor from outside and radiates through the tissue. This makes it hard to focus the maximum dose precisely at the tumor. The system from Empyrean Medical Systems, however, aligns the radiation three-dimensionally so that the maximum dose reaches the tumor and does not affect the surrounding tissue. Empyrean Medical Systems calls this “triple modulation”. Within the 3D cone, the dose can be individually adjusted in any desired area. Tumors in the spinal column, brain and female breast can thus be treated.

The three-dimensional alignment of the radiation allows for optimal radiotherapy.

Successfully passed the complicated approval process for robot-assisted systems for medical applications

The uniqueness of Morpheus™, however, proved to be an obstacle in gaining approval from the U.S. Food and Drug Administration (FDA). “Since our approach and the technology differed greatly from the conventional, we really had to work hard at convincing people,” Fishman recalls. The LBR Med’s CB certification, which is the certification for use in medical products, was very helpful in this process. “That saved us a lot of time and headaches. Throughout the process, KUKA was a big help to us and always had an open ear for our needs,” the Empyrean Medical Systems co-founder notes.

User-friendliness thanks to robot for medical applications 

The tracking of breathing motions was also a challenge. Usually when a patient moves, the beam has to stop, the body must brought back to the original position, and the beam is switched on again. The LBR Med allows Morpheus™ to follow the breathing motion while the patient breathes under anesthesia. Treatment can be carried out without interruption. The beam follows the anatomy and remains aligned with the tumor, without endangering the surrounding tissue. This allows the system to always execute the treatment plan exactly.
The adaptation to breathing motion allows for pinpoint irradiation of tumors in the body.

Simple start-up thanks to the integrated lightweight robot

The integrated LBR Med has assisted in automating many tasks – such as the introduction of the radiation source into the calibration chamber. Morpheus™ also carries out the calibration of a phantom. “We guide the system into the starting position. From there, Morpheus™ takes over and the dance begins. The beam source is controlled by software as well as by sensors on the phantom. No one has to intervene manually. That is an important factor for the hospital,” notes Fishman in explaining the procedure.
Many intraoperative radiotherapy tasks can be automated as a result of the integration of the LBR Med.

Clinical trial of the robot-assisted system for intraoperative radiotherapy

The patients’ safety is ensured with Morpheus™. The planned beam can be activated in a closed chamber, allowing for a check of the geometry. Empyrean Medical Systems, however, has established a more innovative method of inspection: augmented reality. Using special glasses, the doctor looks through the patient’s body and sees the shape and distribution of the radiation cloud in the anatomy directly in front of him on a small display – if necessary, from different perspectives

The KUKA technicians were a big help to us with everything related to the collaboration between humans and machines as well as controlling the robot as part of the medical product. Without them, we would not have made it this far.

Kal Fishman, co-founder of Empyrean Medical Systems
In the next step, Empyrean Medical Systems will enter clinical trials with experienced Morpheus™ users. The system has already been delivered to three institutes in the U.S. The experiences are to be presented at next year’s meeting of the American Society for Radiation Oncology.

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