Fujian Medical University Union Hospital to Transfer Patent for Improved Ultrasound-Guided Cyst Intervention Device at RMB 500,000
Recently, the First Affiliated Hospital of Fujian Medical University released a public notice on the conversion of scientific and technological achievements. The hospital intends to transfer its intellectual property through listed trading on an equity exchange.“An Improved Device for Ultrasound-Guided Interventional Treatment of Cysts”The relevant patents were transferred to industry partners, with a total transaction amount of RMB500,000 yuan. The inventor of this patented technology is the First Affiliated Hospital of Fujian Medical UniversityZeng Jinshu。
Zeng Jinshu:Currently serves as an Associate Chief Physician in the Department of Ultrasound Imaging at the First Affiliated Hospital of Fujian Medical University. Holds positions as a Committee Member of the Interventional Ultrasound Committee of the Chinese Society of Ultrasound in Medicine and Engineering; a Committee Member of the Interventional Ultrasound Committee of the Cross-Strait Medical and Health Exchange Association; a Committee Member of the Thyroid and Hepatobiliary-Pancreatic Group under the Interventional Ultrasound Committee of the Interventional Physicians Branch of the Chinese Medical Doctor Association; a Committee Member of the Ultrasound Branch of the Fujian Medical Association; and a Standing Committee Member of the Thyroid Society and the Interventional Branch, as well as Deputy Leader of the Interventional Group within the Imaging Branch of the Fujian Association of Integrative Traditional Chinese and Western Medicine. Since graduating in 2000, has been engaged in professional work in ultrasound medical imaging, and has conducted interventional ultrasound diagnosis and treatment since 2014, achieving a leading level within the province. During his tenure, has presided over and completed one young researcher project funded by the Fujian Provincial Health Department, and has published more than ten papers in SCI-indexed and national-level journals.
This utility model patent disclosesAn Improved Device for Ultrasound-Guided Interventional Treatment of Cysts, relating to the technical field of medical devices, wherein the puncture needle can be angularly adjusted after passing through an annular silicone protective pad, and its position can be adjusted under the action of a slide rail, thereby facilitating use by medical personnel; wherein the annular silicone protective pad prevents abrasion to the outer wall of the puncture needle during positional adjustment, thus avoiding adverse effects on subsequent puncture and treatment.
Cysts are common clinical lesions, encompassing various types such as hepatic cysts, renal cysts, and ganglion cysts. The core therapeutic requirement isPrecise Cyst Fluid Aspiration to Reduce the Risk of Recurrence, particularly for patients requiring preservation of organ function, minimally invasive and safe treatment modalities are especially critical.
Clinically, traditional open surgery for cysts requires a 5–10 cm incision and layered dissection of tissues to expose the cyst. This approach is highly invasive, damages surrounding healthy tissue, and carries the risk of vascular or nerve injury. Postoperative pain can persist for several weeks, with a recovery period lasting 1–3 months. Furthermore, it is prone to complications such as surgical site infections and tissue adhesions.
Currently, ultrasound-guided interventional therapy, despite its minimally invasive advantages, still presents significant clinical challenges:
First, the positioning accuracy of the biopsy needle is suboptimal.When managing cysts that are deeply located or have complex relationships with surrounding tissues, needle deviation is prone to occur, thereby increasing the risk of vascular and nerve injury. This poses particular safety concerns for special populations, such as elderly and pediatric patients.
Second, the aspiration of cyst fluid was insufficiently thorough.Conventional puncture devices lack an effective auxiliary aspiration structure, making it difficult to completely drain viscous cyst fluid. Residual fluid can stimulate the cyst wall to continue secreting, leading to a high recurrence rate of treatment. For patients with hereditary conditions such as polycystic liver disease and polycystic kidney disease, the risk of recurrence is even more pronounced.
Third, the injection efficiency of sclerosing agents is relatively low.Aspiration of cyst fluid and injection of sclerosing agent require separate procedural steps. During the transition between these steps, leakage along the needle tract is prone to occur, thereby compromising the efficacy of the sclerosing agent. Furthermore, the cumbersome operational workflow prolongs treatment duration.
Furthermore, most existing interventional devices adopt a generic design, making it difficult to meet the therapeutic needs of cysts varying in size and location. For complex cyst types, such as those with calcified walls or intracystic hemorrhage, ideal therapeutic outcomes are often unattainable due to the limited functionality of these devices.
Meanwhile, certain procedures rely on physicians’ experience and lack standardized supportive frameworks, leading to inter-individual variability in treatment outcomes and making it difficult to ensure consistency and stability in clinical practice.
Therefore, existing cyst treatment techniques suffer from drawbacks in clinical practice, including the risk of trauma, high recurrence rates, operational complexity, and inadequate adaptability. There is an urgent need for a refined device that offers precision, efficiency, and low risk to meet the clinical demand for upgraded minimally invasive therapies.
The core advantages and advanced nature of this patented technology lie inFundamentally revolutionized the operational model of ultrasound-guided interventional therapy for cysts.Passed“Flexible Guidance + Secure Fixation”The seamless synergy of these two core components establishes a precise, safe, and efficient closed-loop therapeutic system, thoroughly overcoming the industry-wide challenges of cumbersome operation and inaccurate positioning associated with traditional devices.
This solution is the first to overcome the technical bottleneck of needle-guided puncture.In traditional interventional therapy, puncture needles lack effective auxiliary adjustment structures; the control of their angle and position relies entirely on the physician’s experience, which can easily lead to deviations and may also cause wear of the needle body.
The Team's Innovatively DesignedAuxiliary Stent Assembly, this challenge was successfully addressed through a multi-dimensional adjustable structure: the auxiliary frame is rotatably connected to the inner wall of the fixation frame, allowing the puncture needle to flexibly adjust its angle over a wide range after passing through the annular silicone protective pad, thereby meeting the requirements for cyst puncture at various locations and depths; meanwhile, the sliding mechanism comprising guide rails on the left and right sides of the fixation frame’s inner wall and annular sliders enables precise horizontal translation of the puncture needle, achieving dual flexible adaptation in both “angle and position.”
More critically, the annular silicone protective pad on the inner wall of the annular slider is selectedHigh-Elasticity Medical-Grade Silicone Material, which can closely adhere to the outer wall of the puncture needle. During adjustment, it not only serves to fix and guide the needle but also prevents direct friction between the needle body and the instrument, thereby effectively preserving the sharpness of the puncture needle and preventing compromised therapeutic efficacy or complications due to needle wear.
Meanwhile, the arc-shaped silicone anti-collision pads on the front and rear inner walls of the auxiliary frame can prevent collisions between the ring slider and the frame body during movement, thereby reducing vibration and further ensuring the stability of the puncture process.
Building on the foundation of precise guidance, another core breakthrough of this proposal lies inProbe Fixation Assemblyinnovative design. Traditional devices have insecure fixation between the guide bracket and the probe, making them prone to loosening and displacement; thus, multiple operators are required to ensure treatment accuracy.
The fixed components of the system achieve a secure fit through an elastic adaptive structure:The arc-shaped moving bracket can rotate around the connecting block to adjust the angle, thereby adapting to the contours of ultrasound probes of different models. The U-shaped frames and arc-shaped fixing plates symmetrically arranged inside automatically clamp the probe under the elastic force of telescopic rods and springs. Combined with the arc-shaped rubber pads on the inner wall of the arc-shaped fixing plate, this design not only enhances frictional stability but also prevents damage to the probe caused by hard contact, achieving the convenient operation of “fixation upon placement.”
Furthermore, the sealing ring on the outer wall of the telescopic rod provides a sealed barrier for the inner chamber housing the spring, preventing liquid ingress during sterilization that could compromise component service life; meanwhile, the limit protection rubber plate on the U-shaped frame prevents collisions during component movement, thereby enhancing the device’s durability.
In the field of ultrasound-guided interventional devices for cyst treatment, driven by the growing clinical demand for precision and minimally invasive therapies, multiple medical device companies have undertaken R&D and product iterations targeting core pain points such as “puncture guidance” and “probe compatibility,” thereby establishing a diversified competitive landscape. Below are representative industry players and their product advancements:
Medis MedicalDeeply cultivated in the field of ultrasound interventional navigation, its core products"Ultrasound-Guided Electromagnetic Tracking Needle Puncture Device"Has obtained NMPA Class III medical device registration certification. This device is suitable for navigation support in interventional puncture procedures involving parenchymal organs, blood vessels, and nerves, covering treatment scenarios for lesions such as hepatic cysts and renal cysts.
This device innovatively integrates electromagnetic positioning technology with ultrasound imaging, enabling real-time visualization of the puncture site status, planned puncture trajectory, and needle tip position throughout the procedure, with a navigation accuracy of up to1.5mm. In clinical trials, the success rate of first-attempt needle insertion is as high as98.86%Compared with the traditional puncture mode that relies on physicians’ experience, this device not only lowers the learning curve for high-difficulty interventional procedures but also avoids radiation injury associated with fluoroscopic navigation, while its core components have been independently developed.
Hakko's "S-Type Drainage Cannula (Model: PTC-DT1)"YesInterventional Treatment of Cystsa classic product. Designed specifically for cyst and abscess drainage, this device is made from highly biocompatible materials with smooth cannula walls to minimize irritation to surrounding tissues during insertion. It enables precise puncture into the cyst cavity under ultrasound guidance, achieving efficient drainage of cyst fluid.