Prosthesis Implantation Device with Feedback Control and Sealing
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Solution Overview
Problem
Existing devices for implanting liquid-absorbing prostheses in human tissues face challenges in precise positioning, risk of incomplete or partial prosthesis release, lack of isolation during insertion, and difficulty in inserting the tubular element due to conformation issues, leading to complications and increased surgical complexity.
Innovation Solution
A device comprising an applicator pistol and a cartridge with a tubular element and pressure element, featuring a pointed end to prevent tissue fragments and liquids from entering, and a locking mechanism to ensure precise alignment and controlled movement of the prosthesis, allowing for precise positioning and isolation during insertion, and a Teflon or ceramic coating for easy tissue penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the hollow member is retreated with respect to the pusher element to allow prosthesis exit, then the prosthesis can be positioned at the desired point, but the hollow member may not be retreated enough causing incomplete prosthesis release or may be retreated too much causing partial release of successive prosthesis
Solution Approach 1:
The device incorporates a controlled retreat mechanism with feedback control that monitors the retreat distance of the hollow member relative to the pusher element. The system automatically stops the retreat when the prosthesis is fully expelled, preventing both incomplete release and partial release of successive prosthesis. This feedback mechanism ensures precise positioning while maintaining reliability of prosthesis release.
2Ease of operation
If the hollow member is used to insert prosthesis into body tissue, then the prosthesis can be delivered, but body liquids and tissue fragments may enter the hollow member and contact the prosthesis causing swelling and occlusion
Solution Approach 1:
The device introduces a barrier or seal mechanism that acts as an intermediary between the hollow member interior and the external body environment. This seal prevents body liquids and tissue fragments from entering the hollow member and contacting the prosthesis during insertion, while still allowing the prosthesis to be delivered intact to the target site.
Solution Approach 2:
The device performs preliminary isolation of the prosthesis within the hollow member before insertion into the body. The sealing mechanism is activated beforehand to create a protected environment, preventing contamination during the entire insertion process until the prosthesis is ready for deployment.
3Adaptability or versatility
If the tubular element has a hollow conformation to allow prosthesis passage, then the prosthesis can be inserted, but the hollow conformation does not facilitate easy insertion and allows liquid entry
Solution Approach 1:
The tubular element incorporates dynamic sealing mechanisms that adapt during insertion. The seal is configured to remain closed during insertion to prevent liquid entry and facilitate easy passage through tissue, then opens automatically or upon actuation to allow prosthesis delivery while maintaining the hollow conformation for prosthesis passage.
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
The device enables precise and controlled placement of prostheses, reducing the risk of incomplete or partial release, minimizing contact with body liquids, and facilitating easy insertion, thereby simplifying the surgical process and reducing complications.
Implementation Method 1
the material constituting it absorbs the body liquids, causing a swelling of the prosthesis itself
Data Source
AI summary
A device for implanting a prosthesis 12 in a body tissue that comprises a tubular element 7, having an open end 18, through which the prosthesis 12 can exit outward and a pressure element 16 acting on a rear end 20 of the prosthesis 12 in order to facilitate the outward exit of the prosthesis 12 from the tubular element 7. The device also comprises first movement means 21 programmed for advancing the pressure element 16 inside the tubular element 7 so as to bring a front end 19 of the prosthesis 12 closer to the open end and second movement means 25 programmed for moving the tubular element 7 back with respect to the pressure element 16 a pre-established calculated amount, in a manner such that the rear end 20 of the prosthesis 12 exits outward from the open end 18.