Robotic Biopsy System With U-Shaped Head
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Solution Overview
Problem
Current needle biopsy methods are invasive, rely heavily on human expertise, and can be risky due to the need for general anesthesia and manual operation, leading to potential damage to critical organs and prolonged recovery times.
Innovation Solution
A fully automated robotic system for minimally invasive needle biopsy that uses a robotic arm with a U-shaped head for precise needle placement, incorporating pressurized anesthesia and antiseptic delivery, and computer-controlled servo drives to navigate biopsy needles with CT scanner guidance, minimizing human intervention and ensuring accurate tissue sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual needle biopsy is performed without anesthesia, then the procedure is simpler and faster, but the patient experiences severe pain and risk of unconsciousness
Solution Approach 1:
The robotic system performs preliminary actions by automatically administering surface anesthesia and intratissular anesthesia before the biopsy procedure. The anesthesia needle is inserted and anesthetic is delivered to numb the puncture site, eliminating patient pain and preventing unconsciousness while maintaining procedural efficiency
Solution Approach 2:
The robotic system acts as an intermediary between the biopsy needle and the patient tissue. It controls the needle insertion depth, trajectory, and timing, while separately managing anesthesia delivery. This intermediary control allows the procedure to proceed quickly while simultaneously protecting the patient from pain and harm through automated anesthesia administration
2Device complexity
If sternotomic biopsy is performed without preliminary anesthesia, then the procedure is simpler, but the patient may experience pain shock and body shift causing organ damage
Solution Approach 1:
The robotic system performs preliminary anesthesia administration before needle insertion. Surface anesthesia is applied first, followed by intratissular anesthesia at the puncture site. This preliminary numbing prevents pain shock and body shift that could cause organ damage, while the robotic control maintains procedural simplicity through automated sequencing
Solution Approach 2:
The robotic system uses feedback from CT scanning to monitor patient position and needle trajectory in real-time. This feedback loop ensures the patient remains stable and the needle stays on the safe trajectory, preventing organ damage while maintaining procedural efficiency through automated adjustments
3Manufacturing precision
If automated robotic system is used with CT guidance and anesthesia delivery, then biopsy accuracy is improved, but device complexity increases
Solution Approach 1:
The robotic system integrates multiple functions into a single platform: CT scanning, image processing, automated anesthesia delivery, and precise needle biopsy. This multi-functionality achieves high biopsy accuracy while managing complexity by consolidating functions under unified robotic control rather than requiring separate devices for each function
Solution Approach 2:
The robotic system serves as an intermediary that coordinates between the CT scanner, anesthesia delivery mechanism, and biopsy needle. This intermediary control layer manages the complexity by centralizing decision-making and execution, achieving high precision through integrated control while keeping the overall system manageable through standardized interfaces and automated sequencing
Data Source
AI summary
An automatic robotic apparatus for conducting a minimally invasive surgical procedure includes a robotic arm having a movable member made as the multilink active actuator. The end portion of the multilink active actuator is provided with the connector to which the hollow head for a needle biopsy is attached. The operation of the U-shaped head is under full control of the robotic apparatus computer system. Results of pre-procedure studies of a site of interest and the progression of the surgical procedure are displayed on a monitor of the computer system.