Single Port Access Rail and Carrier for Laparoscopic Instrument Triangulation
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Solution Overview
Problem
Traditional laparoscopic procedures require multiple puncture sites and ports, leading to multiple scars and potential complications, as the natural elasticity of tissue tends to close the openings, necessitating the use of multiple ports for instrument access and triangulation.
Innovation Solution
A medical device system comprising a port, connection member, rail, and carrier that allows multiple medical instruments to be used through a single port, with a rail extending through the port opening and into the bodily cavity, enabling the carrier and instruments to slide along the rail for access, while the connection member attaches to the port and includes a latch for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple puncture sites and ports are used for laparoscopic procedures, then multiple instruments can access the bodily cavity and triangulation can be achieved, but multiple scars are created and tissue damage increases
Solution Approach 1:
The patent combines multiple instrument access functions into a single port system. The port assembly integrates a hub structure that can accommodate multiple instrument shafts, allowing triangulation and multiple instrument manipulation through one puncture site rather than requiring separate puncture sites for each instrument
Solution Approach 2:
The patent introduces angular positioning of instrument shafts relative to each other and to the port axis. By arranging instruments at different angles (e.g., 30-60 degrees apart) within the single port, the system achieves triangulation capability in a three-dimensional configuration space, eliminating the need for multiple separate access points
2Stability of the object's composition
If the natural elasticity of tissue is allowed to close the opening, then tissue integrity is maintained, but access to the bodily cavity is lost
Solution Approach 1:
The port assembly acts as a counterbalancing element that resists the natural elastic closure force of the tissue. The port's structural rigidity and engagement mechanism provide an opposing force that maintains the opening against tissue elasticity, allowing sustained access without compromising the surrounding tissue integrity
Solution Approach 2:
The port assembly serves as an intermediary device between the external environment and the bodily cavity. It provides a stable interface that maintains the opening while minimizing direct tissue manipulation, allowing instruments to pass through without requiring the tissue itself to remain open
Data Source
AI summary
Medical devices, systems and methods are disclosed that serve to guide one or more medical devices through a port formed in bodily tissue to access a bodily cavity. One embodiment of the medical device includes a connection member, a rail, and a carrier. The connection member is structured for attachment to the port. The rail is attached to the connection member, and has a first portion extending distally through the port opening, and a second portion extending at an angle relative to the first portion. The carrier is structured to selectively connect to the first portion of the rail, and is slidable along the first and second portions of the rail.