Capsule Medical Apparatus Tissue Drawing and Drug Injection Mechanism
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Solution Overview
Problem
Current capsule endoscope technologies primarily focus on imaging and do not have the capability to inject drugs into living tissues effectively, lacking a mechanism for targeted drug delivery within the body.
Innovation Solution
A capsule medical apparatus with a living tissue drawing portion, a movable unit with an engaging mechanism, an injection needle, and an injection needle driver that allows for the precise drawing of tissue and injection of drugs into the body, utilizing rollers, solenoids, and balloons for controlled tissue engagement and drug delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a capsule endoscope is used for imaging, then in-vivo images can be captured and transmitted, but the capability to inject drugs into living tissues is lacking
Solution Approach 1:
The capsule endoscope is designed to perform multiple functions: imaging (capturing in-vivo images) and drug injection (delivering medications to targeted tissues). The capsule body integrates both an imaging unit with antenna for image transmission and an injection mechanism with needle and drug reservoir, allowing a single device to accomplish both diagnostic and therapeutic tasks without requiring separate procedures
Solution Approach 2:
The imaging system and injection system are merged into a single capsule device. The imaging unit (camera, light source, antenna) and injection unit (needle, drug reservoir, injection mechanism) are integrated within the same capsule body, enabling coordinated operation where images guide injection timing and location, and the injection mechanism is positioned based on imaging feedback
2Reliability
If a retainment pin is used to retain the capsule in the body, then the capsule can be held in position, but the mechanism for precise tissue engagement and drug delivery is insufficient
Solution Approach 1:
The injection needle is designed with dynamic positioning capability, allowing it to protrude from and retract into the capsule body as needed. The needle can be extended to engage with living tissue and deliver drugs, then retracted to minimize invasiveness and prepare for the next injection cycle, providing controlled and repeatable tissue engagement
Solution Approach 2:
The capsule apparatus uses its own imaging unit to identify and target the living tissue for injection, eliminating the need for external guidance systems. The device autonomously positions itself based on imaging feedback and automatically controls the injection timing and location, performing the targeting function itself
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the precise and controlled injection of drugs into targeted living tissues, enhancing the capability for localized treatment and diagnosis within the body, while maintaining the imaging functionality of existing capsule endoscopes.
Implementation Method 1
a decompression device that draws the living tissue into the living tissue drawing portion by decompression
Implementation Method 2
an injection needle driver that includes a solenoid which drives the injection needle to protrude
Data Source
AI summary
A capsule medical apparatus includes a living tissue drawing portion in which a space for drawing the living tissue into a body of the capsule medical apparatus is formed; a movable unit that includes an engaging unit, which can be engaged with the living tissue of the subject, and that moves on a surface of the body of the capsule medical apparatus and in the living tissue drawing portion; an injection needle that has an ejection port for a drug and that protrudes such that the ejection port is positioned in the living tissue drawing portion; and an injection needle driver that drives the injection needle such that the injection needle protrudes.