Surgical Puncture Locator Device for Cardiac Tissue Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current medical procedures for accessing internal anatomy through biological tissue face challenges in accurately locating and executing punctures, particularly in cardiac procedures, which can lead to tissue damage and inefficiencies due to suboptimal access paths.
Innovation Solution
A puncture locator device with a handle, tissue depressor form, and needle channel is used to facilitate precise puncture site location and orientation, stabilizing the device against the heart wall and guiding the needle through an angled path to minimize tissue stress and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a needle is inserted directly through the heart wall to access internal anatomy, then the access path is simple, but tissue stress and damage increase due to suboptimal access paths
Solution Approach 1:
The puncture locator device serves as an intermediary tool between the operator and the heart wall. It includes a stabilizer structure that contacts and stabilizes against the heart wall, a tissue depressor form that depresses the tissue, and a needle channel that guides the needle. This intermediary device enables precise control of needle insertion angle and path, reducing tissue stress while maintaining procedural simplicity
Solution Approach 2:
The device performs preliminary actions before needle insertion: the stabilizer structure first contacts and stabilizes against the heart wall, then the tissue depressor form depresses the tissue to create an optimal access path. These preliminary actions prepare the tissue and establish the correct geometry before the needle is inserted through the needle channel, preventing suboptimal access paths that cause tissue damage
2Productivity
If the puncture site is not accurately located, then the procedure is faster to initiate, but the suture path becomes curved and tissue damage increases
Solution Approach 1:
The puncture locator device combines multiple functions in a single tool: stabilization (stabilizer structure), tissue depression (tissue depressor form), and needle guidance (needle channel). This multi-functional design allows accurate puncture site location and proper needle angulation to be achieved in one setup action, maintaining procedural efficiency while ensuring precision
Solution Approach 2:
The device changes the geometric parameters of the access path by controlling the needle insertion angle through the needle channel and creating tissue depression with the tissue depressor form. These parameter changes ensure the needle follows an optimal path through the tissue, achieving both accuracy in puncture site location and minimal tissue stress
3Device complexity
If no stabilization is provided during needle insertion, then the device structure is simpler, but the needle path accuracy and tissue stress control deteriorate
Solution Approach 1:
The device is segmented into distinct functional components: a stabilizer structure for stabilization, a tissue depressor form for tissue depression, and a needle channel for needle guidance. This segmentation allows each component to perform its specific function effectively while keeping the overall device relatively simple. The stabilizer structure contacts the heart wall to prevent movement, ensuring needle path accuracy without requiring complex mechanisms
Data Source
AI summary
A puncture locator device for use in locating a desired tissue puncture site and executing a puncture therethrough includes a handle, a tissue depressor form, and a needle channel that passes through at least a portion of the tissue depressor form.