Research at Queen'sNovel image-guided biopsy capsule with optical tracking enables spatially registered tissue collection from brain tumor
Background
Brain tumor heterogeneity remains a critical challenge in neurosurgery and neuro-oncology. Current biopsy methods lack spatial precision, often resulting in inconsistent sampling across tumor regions and contamination between samples. This limitation directly impacts molecular characterization capabilities essential for personalized treatment planning.
The global neurosurgery market was valued at $3.45 billion in 2024 and is projected to reach approximately $3.6 billion in 2025. Within this market, precision medicine diagnostic applications represent $85.9 billion globally in 2024 and is projected to grow at a compound annual growth rate (CAGR) of 12.87% from 2025 to 2034, while the broader biobanking sector reaches $82 billion at 8.16-8.5% growth. Traditional biopsy tools, while functional, cannot simultaneously address the clinical need for spatially-defined sampling, minimal contamination, reproducible collection protocols, and integration with modern image guidance systems.
Current limitations include high variability in sample weight and collection time, risk of cross-contamination between sampling sites, inability to perform accurate molecular characterization of spatially heterogeneous tumors, and barriers to translational research requiring standardized tissue acquisition. These gaps directly impede advancement in neuro-oncology precision medicine and compromise the reliability of bio-banked specimens for research applications.
Technology Overview
The novel biopsy capsule represents a paradigm shift in intraoperative tissue sampling. This advanced biopsy tool integrates optical tracking technology with an innovative capsule design that enables precise, reproducible collection of spatially-defined tissue samples from brain tumors.
Key features include:
- Optically Tracked Capsule Design: A capsule that attaches to Fraizer suction. When suction is applied, the tissue sample is collected and secured within the capsule’s biopsy chamber, preventing cross-contamination with other samples or the surgical environment. Multiple distinct biopsies can be taken from different regions of the tumor/cavity using interchangeable capsules on the same Frazier suction. Facilitates high-throughput sampling.
- Optical Navigation Integration: The capsule operates with optical tracking systems standard in modern neurosurgical suites to precisely register sample locations relative to preoperative imaging data, enabling accurate spatial mapping of sampled regions.
- Quality Function Deployment Optimization: The device was engineered using QFD methodology to prioritize user requirements, addressing technical needs for minimal sample variability, contamination prevention, and ease of use across varying levels of surgical expertise.
- Modular Capsule System: Multiple interchangeable capsules allow sequential sampling, with each capsule maintaining sterility and sample integrity. Each biopsy can then undergo a variety of downstream processing steps (e.g., fixation in the capsule, later ejection into agarose molds, creation of tissue microarrays), which can support multiple molecular and histologic analyses from each biopsy sample.
- Ergonomic Integration: Designed for seamless integration into standard neurosurgical workflows using conventional instruments and imaging systems, enabling immediate clinical adoption.
Further Details:
Andrews K, et al. Using Quality Function Deployment to Design an Image-Guided, Multibiopsy Tool for Neurosurgical Applications. Oper Neurosurg. 2025 Jul 3. . Epub ahead of print. PMID: 40608297. PMID: 40608297.
Stage of Development
In prototype validation studies comparing the capsule method with traditional forceps-based sampling on cadaveric specimens, sample weight and collection time demonstrated significantly lower variance compared to manual forceps collection. Comparative testing showed results comparable to experienced surgeons’ performance, indicating reduced expertise-dependent variability. Collection of multiple intraoperative tissue samples was achieved using each device with no reported instrument failure. Integration with surgical navigation systems enabled precise location recording of all samples in three-dimensional tumor space.
Benefits
- Enables collection of spatially-defined tissue samples with consistent weight, volume, and collection timing independent of surgeon experience level
- Design reduces cross-sample contamination, a critical limitation of traditional multi-sample approaches
- Compatible with numerous downstream processing steps (e.g., fixation in the capsule, freezing sample, etc.)
- Consistent, high-quality samples enhance accuracy of genomic profiling, gene expression analysis, and tumor microenvironment assessment
- Optical tracking integration provides precise three-dimensional registration of sample locations, enabling comprehensive heterogeneity assessment
Applications
- Neurosurgical brain tumor biopsy collection with spatial heterogeneity assessment
- Reliable molecular profiling for improved treatment guidance
- Precision medicine and personalized oncology
- Translational neuro-oncology research
- Biobanking infrastructure for cancer research repositories
Opportunity
This technology addresses a substantial unmet need across multiple high-growth market segments. The combination of precision medicine expansion, increasing demand for standardized biobanking solutions, and advancement in intraoperative diagnostic capabilities creates a compelling market opportunity.
Commercialization pathways include direct licensing to established neurosurgical device manufacturers, partnership with biobanking and tissue repository service providers, collaboration with precision medicine diagnostic companies, joint development with pharmaceutical CNS research divisions, and hospital system integration programs for integrated oncology centers.
Patents
- U.S. Provisional Patent Application No. 63/889,866
- Canadian Patent Application No. 3,287,613
IP Status
Patent application submitted
Seeking
- Development partner
- Commercial partner
- Licensing
Posted
Jan 15, 2026