Surgical Triangulation Platform for Single Incision Access
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Solution Overview
Problem
There is a continuing need for determining the relative positions of end effectors of articulating surgical instruments used through a single incision or orifice during minimally invasive surgical procedures, as existing solutions do not effectively provide knowable and repeatable starting locations for multiple instruments.
Innovation Solution
A surgical triangulation device with an elongate member and a pivotable platform that transitions between two positions, allowing for secure insertion and deployment through a surgical access portal, enabling precise triangulation of surgical objects by creating separation between instruments and maintaining a fluid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If multiple surgical instruments are inserted through a single incision access device, then the trauma to the patient is reduced and recovery time is shortened, but it becomes difficult to determine the relative positions of the end effectors
Solution Approach 1:
A triangulation device with a platform and multiple lumens is introduced as an intermediary tool. The platform defines lumens at known angular relationships (e.g., 90 degrees) that guide surgical instruments, allowing the surgeon to determine relative positions of end effectors through the geometry of the platform rather than direct visualization
Solution Approach 2:
The triangulation device adds a spatial dimension reference system by creating a platform orthogonal to the longitudinal axis of the access device. This establishes a known geometric framework (first position with ends at specific angles, second position orthogonal) that provides spatial reference for instrument placement
2Adaptability or versatility
If articulating surgical instruments are used to provide flexible access, then the ability to reach target sites is improved, but the complexity of determining end effector positions increases
Solution Approach 1:
The triangulation device is deployed and positioned in advance to establish the geometric framework before surgical instruments are inserted. The platform is positioned in either the first position (with ends at specific angles) or second position (orthogonal to longitudinal axis), pre-defining the spatial relationships that will guide subsequent instrument placement
3Measurement precision
If a pivotable platform is used to enable triangulation, then precise starting locations for instruments are achieved, but the device complexity increases
Solution Approach 1:
The platform is made pivotable relative to the longitudinal axis, allowing dynamic repositioning between at least two distinct positions: a first position where the platform's ends are at specific angles, and a second position where the platform is orthogonal to the longitudinal axis. This dynamic capability provides multiple triangulation configurations while maintaining a relatively simple overall device structure
Data Source
AI summary
A surgical triangulation device and method of use is disclosed. The surgical triangulation device includes an elongate member, the elongate member defining a longitudinal axis and being adapted for insertion through a surgical access portal. The surgical triangulation device also includes a platform pivotably attached near a distal end of the elongate member, the platform defining a plurality of lumens and a central opening therethrough. The platform has a first position, where a first end of the platform is positioned proximate to the elongate member and a second end of the platform extends distally past a distal end of the elongate member, and a second position, where the platform is nearly orthogonal to the longitudinal axis.