Wireless Capsule Endoscope Colonic Propulsion 2026
Wireless Capsule Endoscope Colonic Propulsion 2026
Passive peristalsis-dependent capsules are giving way to magnetically actuated, inchworm, fluid-jet, and screw-drive platforms. This dataset snapshot maps four propulsion clusters, key assignees, and emerging autonomous navigation signals from 2002 to 2025.
From Passive Transit to Active Robotic Propulsion in Colonic Capsule Endoscopy
Standard wireless capsule endoscopy leaves capsules entirely subject to intestinal peristalsis, resulting in incomplete colonic examination, inability to revisit suspicious lesions, and variable transit times. Multiple literature reviews from 2012 through 2023 in this dataset cite passive bowel movement as the defining barrier to routine colorectal cancer screening.
Four distinct propulsion paradigms are documented in this dataset: external magnetic actuation (SMAL frameworks), inchworm and legged mechanical locomotion driven by onboard microactuators, fluid-jet hydro-propulsion creating thrust via expelled water jets, and tethered screw-drive mechanisms using a rotating helical thread for bidirectional colonic traversal.
The dataset spans filings and publications from 2002 to 2025 across three recognizable waves: a foundational phase (2002–2010) establishing fluid-jet and mechanical self-propulsion concepts; a development phase (2010–2020) producing ex-vivo validated platforms; and a convergence phase (2020–2025) integrating AI-driven autonomous navigation and retrograde helical-thread capsules.
In this dataset, US jurisdiction records number 10 or more, followed by CN with 2 active recent patents, WO with 3 records, and CA, AU, EP, IT, and IN each contributing smaller counts. The General Hospital Corporation is the most prolific single assignee in retrieved records, with at least 5 active patents across US and WO jurisdictions from 2019 to 2025.
Propulsion Cluster Distribution and Filing Timeline
The dataset reveals four propulsion clusters with unequal patent and literature density. Magnetic actuation carries the greatest publication depth and the only published human clinical trial data (2021), while tethered screw-drive and CN rotational drive patents represent the most recent filings (2024–2025).
Records per Propulsion Cluster — Dataset Snapshot
Magnetic actuation accounts for the largest share of records in this dataset, followed by tethered screw-drive, with fluid-jet and inchworm locomotion represented by fewer but foundational entries.
↗ Click bars to exploreFiling Activity by Phase — Dataset Timeline
The convergence phase (2020–2025) contains the highest number of recent patent filings in this dataset, with CN and WO records concentrated in 2024, while the foundational phase (2002–2010) established the earliest prior art.
↗ Click bars to exploreKey Clinical and Procedural Application Domains for Colonic Capsule Propulsion
Propulsion-enabled colonic capsule endoscopy is being developed for four distinct clinical and procedural contexts, each placing different demands on actuation architecture, miniaturization, and autonomous control.
Colorectal Cancer Screening
The dominant application domain in the dataset, CRC screening drives development of pain-minimizing, autonomously guided capsules as an alternative to sedation-dependent optical colonoscopy. The Endoo magnetically-actuated soft-tethered capsule achieved 100% target approach success in ex-vivo colon testing (2020). A clinical trial in five healthy human subjects (2021) reported no adverse magnetic field effects and no mucosal damage.
Diagnostic EndoscopyInflammatory Bowel Disease Monitoring
The dataset references second-generation colon capsule endoscopy providing higher accuracy for ulcerative colitis inflammation assessment (2020). Active propulsion extends this application to longitudinal monitoring in patients who cannot tolerate optical colonoscopy. The dataset identifies this as an area where propulsion-enabled repeated examination adds direct clinical value over passive transit devices.
IBD SurveillanceMouth-to-Anus GI Examination
Multiple sources in the dataset describe the M2A capsule concept — a single swallowable device traversing the entire GI tract — as an ultimate goal (2021). The colon’s diameter, length, and tortuous anatomy are identified as the most mechanically demanding segment requiring dedicated propulsion. Tethered screw-drive and magnetic actuation platforms are both described as candidate architectures for enabling complete GI traversal.
Full GI EndoscopyTherapeutic and Interventional Capsule Use
The dataset documents convergence of propulsion with drug delivery, biopsy, and surgical platform integration. An inductive wireless recharging system (2015) was designed for a multi-use colonoscopy capsule with extended lifecycle for therapeutic interventions. Covidien LP’s 2024 US and EP patents describe wireless power transfer from a laparoscopic instrument to a co-deployed capsule endoscope, combining diagnostic imaging with surgical robotic workflows.
Therapeutic EndoscopyKey Patent Assignees in Colonic Capsule Propulsion (Retrieved Records)
In retrieved records, The General Hospital Corporation holds at least 5 active US and WO patents (2019–2025) on tethered capsule microendoscope advancement, making it the most prolific single assignee in this dataset. Chinese assignees Yuanhua Intelligent Technology and Ankon Technologies together account for 4 active CN and US filings in retrieved records, representing the most recent propulsion-specific innovations from China.
Top Assignees by Filing Count — Colonic Capsule Propulsion (Dataset Snapshot)
↗ Click bars to exploreThe General Hospital Corporation
The most prolific assignee in retrieved records, holding at least 5 active patents across US and WO jurisdictions filed between 2019 and 2025. Core technology covers tethered capsule microendoscope advancement and positioning, including a 2024 WO patent on retrograde tethered capsule endomicroscopy with outwardly-facing helical threads enabling retrograde colonic traversal with circumferential OCT-quality imaging. The 2025 US filing confirms the portfolio remains under active development with no signs of expiry.
United StatesYuanhua Intelligent Technology (Shenzhen)
Holds 2 active CN patents filed in January 2024 and September 2024 covering a drive apparatus and method for wireless capsule endoscopes in the intestine. The technology uses pitch, yaw, and composite rotation modes to dilate the intestinal lumen and reduce travel resistance — a biomechanics-informed design approach. These are among the most recently filed propulsion-specific patents in this dataset, suggesting an accelerating CN innovation posture.
China — CNFour Forward-Looking Signals in Colonic Capsule Propulsion (2022–2025)
The most recent filings and publications in this dataset (2022–2025) reveal four identifiable forward-looking signals: retrograde helical-thread traversal, multi-mode CN rotational dilation, autonomous AI-guided navigation, and hybrid laparoscopic-capsule integration.
Retrograde Colonic Traversal via Helical Thread Capsules
The General Hospital Corporation’s WO 2024 patent on retrograde tethered capsule endomicroscopy claims a capsule with at least one outwardly-facing helical thread, a drive shaft for rotation, and an optical system for circumferential imaging. This enables ascending the colon against peristaltic direction — a capability absent from all prior propulsion paradigms in this dataset. Combined with OCT-quality circumferential imaging, this approach could enable precise lesion re-examination without reinsertion.
Autonomous AI-Guided Navigation Without Operator Input
The SMAL-based autonomous navigation framework (2022) and the fuzzy logic digital twin locomotion system (2023) both target full procedural autonomy. The 2022 framework proposes automatic propulsion and trajectory-following algorithms enabling repeated inspection of suspicious lesions with minimal user intervention. The 2023 five-electromagnet platform uses interval type-2 fuzzy logic digital twin modeling on a 2D translational stage beneath the patient bed — mirroring the trajectory toward supervised autonomy seen in surgical robotics.
Magnetic Actuation vs. Tethered Screw-Drive: Technical and IP Comparison
Click any row to explore further.
| Dimension | External Magnetic Actuation (SMAL) | Tethered Screw-Drive (Helical Thread) |
|---|---|---|
| Propulsion Principle | External robotic arm with permanent or programmable electromagnet steers embedded internal magnet via closed-loop feedback | Rotating helical thread on capsule exterior converts rotational motor energy via drive shaft into axial propulsion |
| Directionality | Antegrade; retrograde requires reversal of external field orientation | Both antegrade and retrograde navigation explicitly enabled; retrograde colonic traversal claimed in WO 2024 |
| Tether Requirement | Soft-tethered variant (Endoo platform, 2020); untethered magnetic variants also documented | Requires physical drive shaft tether connecting capsule to external motor |
| Clinical Validation | Human clinical trial in 5 healthy subjects (2021); no adverse magnetic effects, no mucosal damage reported | No human clinical trial data present in this dataset; ex-vivo and phantom testing only |
| AI Integration | CNN lumen detection trained on 9,080 endoscopic images (mAP 0.961); SMAL autonomous navigation framework (2022); fuzzy logic digital twin (2023) | No AI navigation integration documented in this dataset for screw-drive cluster |
| Key Assignee (Dataset) | Multiple academic institutions (anonymous); no single dominant commercial assignee in magnetic actuation cluster in this dataset | The General Hospital Corporation — 5+ active US and WO patents (2019–2025) |
| IP Status | Active literature; some patent activity from Ankon Technologies (CN/US 2020) on power control for magnetically-assisted capsules | Active — most recent filing 2025 (US); WO 2024 retrograde endomicroscopy patent active |
| Dataset Record Density | Highest record density in this dataset — approximately 14 records including both patents and literature | 7 records in this dataset — concentrated in The General Hospital Corporation portfolio |
Frequently Asked Questions: Wireless Capsule Endoscope Colonic Propulsion
The dataset identifies four distinct paradigms: (1) external magnetic actuation, where a field from outside the body steers an internal magnet; (2) inchworm and legged mechanical locomotion, where onboard microactuators extend anchor legs for a peristaltic crawl; (3) fluid-jet hydro-propulsion, where expelled water jets generate thrust; and (4) tethered screw-drive mechanisms, where a rotating helical thread drives bidirectional axial propulsion.
In retrieved records, The General Hospital Corporation is the most prolific assignee, holding at least 5 active patents across US and WO jurisdictions filed between 2019 and 2025, covering tethered capsule microendoscope advancement, positioning, and retrograde helical-thread colonic traversal.
Yes. A 2021 publication in the dataset reports a clinical trial of a self-propelled capsule endoscope in five healthy human subjects, with no adverse magnetic field effects and no mucosal damage recorded, marking an important clinical validation milestone in this dataset.
UCL Biomedica PLC holds the foundational fluid-jet propulsion patent filings in CA (2005) and AU (2006), both of which are now listed as inactive in this dataset. The 2020 hydro-jet phantom colon proof-of-concept demonstrated successful navigation through three of four anatomical configurations, but the field appears commercially underexplored relative to magnetic actuation.
In retrieved records, Yuanhua Intelligent Technology (Shenzhen) holds 2 active CN patents from 2024 on multi-mode rotational intestinal dilation drives. Ankon Technologies holds 2 active US patents (2020) on wireless capsule endoscope power supply control. The 2024 CN filings are among the most recent in this dataset, suggesting an accelerating innovation posture from Chinese assignees in propulsion-specific technology.
The 2022 autonomous magnetic navigation framework proposes automatic propulsion and trajectory-following algorithms for repeated lesion inspection with minimal user intervention. The 2023 fuzzy logic locomotion system uses a five-electromagnet external platform and interval type-2 fuzzy logic digital twin modeling. A CNN lumen detection system trained on 9,080 endoscopic images achieved an mAP of 0.961 for automatic lumen alignment.
Data and insights on this page are based on a limited patent and literature dataset and are for reference only. Figures may not represent the complete technology landscape.