Controlled Expansion Bone Anchor Technology (CEBAT)

Stronger Fixation.
Better Outcomes.

Ossentia Medical is developing a novel class of orthopedic bone anchors that deliver superior fixation in low-density bone — addressing a critical unmet need for the millions of patients with osteoporosis and osteopenia undergoing orthopedic surgery.

32% Greater pull-out force vs. leading suture anchor in low-density bone
About Ossentia Medical

Solving One of Orthopedic Surgery's Most Persistent Problems

Ossentia Medical is a medical technology startup developing a novel class of orthopedic surgical devices based on Controlled Expansion Bone Anchor Technology (CEBAT) — a platform commercializing 30+ years of biomechanical research from Drexel University.

Our technology is built for the growing population of patients with osteoporosis and low bone density — a group for whom conventional bone anchors routinely fail. By combining immediate mechanical fixation with long-term biological osteointegration, we give surgeons a more reliable solution and patients a better chance at a full recovery.

Founded 2024
Drexel University Spin-out
FDA 510(k)  ·  Class II Medical Device
12 peer-reviewed journal publications
Applications

Bone Anchors in Orthopedic Surgery

Bone anchors are essential across many orthopedic surgical applications

Soft Tissue Repair
Rotator cuff repair
Primary Device Suture Anchor
Soft Tissue Reconstruction
ACL reconstruction
Primary Device Interference Screw
Fractures
Distal radius fracture
Primary Device Plates, Cortical & Cancellous Screws
The Challenge

Bone Anchors Fail When Patients Need Them Most

Conventional bone anchors are made from non-expanding materials. In low-density bone — common in osteoporotic and elderly patients — they suffer from loosening and pull-out at dramatically higher rates.

Normal bone density
4.5%
anchor pull-out failure
Low-density bone (osteoporosis)
64%
anchor pull-out failure in rotator cuff repair1,2

1 Li et al. (2022). Journal of Clinical Medicine, 11(22), 6870  |  2 Tingart et al. (2004). American Journal of Sports Medicine, 32, 1466–1473

Bone anchors are essential across rotator cuff repair, ACL reconstruction, and fracture fixation — with millions of procedures performed annually in the U.S.

Over 54 million Americans are affected by osteoporosis or low bone density — the highest-risk population for anchor failure.

Anchor failures lead to poor patient outcomes and an estimated $300M in unnecessary U.S. healthcare costs annually from avoidable revision surgeries.

Bone anchor pullout failure
Conventional bone anchor loosening — a common failure mode in osteoporotic patients
The Solution

Controlled Expansion Bone Anchor Technology

Ossentia Medical's CEBAT addresses the critical deficiencies of conventional bone anchors through dual-mode fixation — delivering both immediate mechanical strength and long-term biological integration.

CEBAT device diagram

Immediate Mechanical Fixation

Compression of the sleeve produces controlled lateral expansion, pressing firmly against the surrounding bone wall for strong, immediate fixation — even in compromised, low-density bone where conventional anchors fail.

Long-Term Biological Integration

The engineered porosity of the expansion sleeve promotes bone remodeling and osteointegration — bone actively grows into the implant, creating biological fixation that strengthens over time and densifies the surrounding bone.

Versatile Platform Technology

The CEBAT platform is applicable across multiple orthopedic procedures — including rotator cuff repair, ACL reconstruction, fracture fixation, and osteochondral repair — addressing a broad and growing market opportunity.

32%
Greater pull-out force in low-density bone compared to one of the leading suture anchors on the market — validated by an independent third-party testing laboratory.
Why It Matters

A Better Anchor Creates a Chain of Better Outcomes

Improved Fixation

Superior anchor hold in low-density bone through mechanical expansion and promotion of osteointegration and bone densification.

Better Patient Outcomes

Reduced surgical failures during and post-surgery — enabling patients to regain function and avoid the physical and emotional burden of revision surgery.

Reduced Revision Surgeries

Eliminating an estimated $300M in unnecessary U.S. healthcare costs per year — with impact likely 2–3× higher when considering all bone fixation procedures.*

* Based on failure rates and revision surgery costs for rotator cuff repair and ACL reconstruction in the U.S.

News

Funding & Recognition

Ossentia Medical's technology has earned recognition and support from leading research institutions and innovation funds.

Investment
$150k

Drexel Innovation Fund

Seed investment from Drexel University's Innovation Fund in support of early-stage commercialization of the CEBAT platform technology.

Grant
$180k

Whitaker Foundation Grant

Research grant to develop new controlled expansion composite materials for orthopedic implant applications.

Grant
$363k

Coulter Foundation Grant

Research grant to investigate controlled fluid-induced expansion properties, advancing the biological fixation mechanism of the CEBAT system.

Grant
$70k

Pennsylvania Manufacturing Innovation Grant

Funding for prototype development and testing of the controlled expansion bone anchor, supporting the path toward clinical-grade manufacturing.

Publications
12

Peer-Reviewed Journal Publications

Research underlying the CEBAT technology has been published in 12 leading peer-reviewed journals, establishing a strong scientific foundation for the platform.

The Team

Decades of combined experience in medical device innovation, biomechanical research, clinical practice, and technology commercialization.

Core Team

SS

Sorin Siegler, Ph.D.

Founder & CEO
  • Biomechanics and engineering expert with 40+ years of experience
  • Professor Emeritus, Drexel University
  • Previously commercialized Total Ankle Replacement technology ($1.8M raised over 3 years) as a Drexel spin-out
LinkedIn
JS

Jordan Stolle, Ph.D.

Director of Product Engineering & Development
  • Studied under Dr. Siegler and Dr. Najafi at Drexel University
  • Deep expertise in biomechanical device development, characterization, and testing
LinkedIn
MT

Mehrangiz Taheri

Associate R&D Engineer (Ph.D. Candidate)
  • Ph.D. candidate studying under Dr. Siegler at Drexel University
  • Active contributor to ongoing research and device characterization
LinkedIn

Advisors

SM

Dr. Sean McMillan

Scientific Advisor
  • Nationally recognized orthopedic surgeon and innovator in sports medicine
  • Chief of Orthopedics at Virtua Health
  • Deep expertise in shoulder, hip, and knee surgery
LinkedIn
YH

Yair Harel

Strategic Advisor
  • Extensive experience in university startup creation and support
  • Specialist in technology licensing, commercialization, and business development
LinkedIn
ST

Seth Tropper

Strategic Advisor
  • Entrepreneur and innovator with 20+ year portfolio of success
  • Expertise in technology commercialization, startups, healthcare, and medical devices
LinkedIn
Get in Touch

Partner with Ossentia Medical

Whether you're a potential investor, strategic partner, clinical collaborator, or simply want to learn more about our technology, we'd love to hear from you.