Transcutaneous Implant Tool Fin and Injection Rod Design
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Solution Overview
Problem
Existing transcutaneous medical implant tools lack ergonomic design and positional stability when inserting medical elements into subcutaneous tissue, leading to potential instability and discomfort during the implantation process.
Innovation Solution
A transcutaneous implant tool with a fin engaged beneath the skin and an injection rod that pushes a medical element through a bore, featuring a distal surface coplanar with the fin's surface, providing stability and a snug fit within the tissue, along with a design that matches the medical element's perimeter profile for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a needle-tipped injection syringe tool is used to insert medical elements transcutaneously, then the medical element can be inserted into subcutaneous tissue, but the tool lacks ergonomic design and positional stability during implantation
Solution Approach 1:
The tool is divided into distinct functional segments: a body portion for housing the medical element, an injection rod for delivery, and a fin for stabilization. This segmentation allows each component to be optimized for its specific function while working together as an integrated system, resolving the contradiction between ease of operation and positional stability.
Solution Approach 2:
The fin extends laterally from the body in a direction perpendicular to the injection axis, adding a stabilizing dimension to the tool. This lateral extension provides ergonomic handling and positional stability during implantation without interfering with the primary injection function, simultaneously improving ease of operation and reliability.
2Volume of moving object
If the medical element is miniaturized for transcutaneous insertion, then it can be inserted through the skin, but the tool requires precise control for stable implantation
Solution Approach 1:
The fin acts as an intermediary between the operator and the miniaturized medical element, providing leverage and control precision. By engaging the fin against the skin surface, the operator can precisely control the insertion depth and angle of the small medical element, making miniaturization practical and controllable.
Solution Approach 2:
The fin is positioned and engaged against the skin surface before the actual injection occurs. This preliminary positioning establishes a stable reference point and control mechanism that enables precise delivery of the miniaturized medical element, resolving the control precision challenge associated with small implant sizes.
3Productivity
If the injection rod pushes the medical element through the bore, then the medical element is delivered into subcutaneous tissue, but the distal surfaces must be coplanar to maintain stability
Solution Approach 1:
The distal surface of the injection rod is shaped to be asymmetric relative to the bore axis, with a coplanar portion that aligns with the fin's distal-facing surface. This asymmetric design ensures proper orientation and stable implantation while maintaining manufacturing feasibility, balancing productivity and manufacturing precision requirements.
Data Source
AI summary
A transcutaneous implant tool is used to push a medical element through an incision and into a patient's subcutaneous tissue, while a fin of the tool is engaged beneath the patient's skin at the incision site. The tool preferably includes an injection rod for moving the medical element out through an opening of a bore of the tool. The fin, which is located in proximity to the opening, preferably includes a distal-facing surface that extends proximally from the opening at an acute angle with respect to a longitudinal axis of the bore; and the injection rod preferably includes a distal surface that is approximately coplanar with the distal-facing surface of the fin, when the distal surface of the rod is located in proximity to the opening of the bore.