Visual Embryo Transfer Catheter with Integrated Camera
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Solution Overview
Problem
Current embryo transfer methods face challenges such as insufficient image resolution due to ultrasound limitations, difficulty navigating atypical anatomies, and reliance on operator skill and experience, leading to reduced success rates, especially in cases of difficult transfers.
Innovation Solution
The Visual Embryo Transfer (VET) System, which includes a steerable, multi-lumen Visualization Sheath with an integrated camera system and a soft Embryo Transfer Catheter, provides real-time visualization and steerability to accurately position the embryo within the uterine cavity, minimizing operator dependence and anatomical obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ultrasound guidance is used to position the catheter tip, then the transfer procedure can be performed, but the image resolution is insufficient and the operator still relies on skill and experience
Solution Approach 1:
The patent replaces the mechanical/ultrasound-based guidance system with a direct visual inspection system. A camera is integrated into the catheter assembly to provide real-time visual feedback of the uterine cavity and catheter tip position, eliminating the need for operator skill and experience in interpreting ultrasound images and manually positioning the catheter.
Solution Approach 2:
The patent introduces a camera as an intermediary device between the catheter and the operator. This camera captures images of the uterine cavity and transmits them to a display device, allowing the operator to directly observe the catheter tip position and make precise adjustments without relying on ultrasound interpretation or personal experience.
2Reliability
If conventional catheter methods are used, then the procedure can be performed, but difficulty navigating atypical anatomies reduces success rates
Solution Approach 1:
The patent implements a feedback mechanism where the camera continuously captures images of the catheter tip position within the uterine cavity and transmits them to a display device. This real-time visual feedback allows the operator to immediately see the effect of their maneuvers and adjust the catheter position accordingly, making it easier to navigate atypical anatomies and ensuring reliable embryo transfer success.
Solution Approach 2:
The patent replaces the mechanical reliance on operator skill and anatomical knowledge with a visual inspection system. The camera provides direct visual information about the catheter tip position and uterine anatomy, enabling operators to navigate complex anatomical structures with confidence and achieve higher transfer success rates.
3Reliability
If operator skill and experience are relied upon, then the procedure can be performed, but variability in outcomes increases
Solution Approach 1:
The patent enables the system to serve itself by automatically capturing and displaying real-time images of the catheter tip position. The visual feedback system operates autonomously, providing consistent guidance regardless of operator experience level. This self-service capability ensures transfer consistency by eliminating variability introduced by operator skill and experience.
Solution Approach 2:
The patent replaces the mechanical dependency on operator skill with an automated visual inspection system. The camera and display device work together to provide objective, consistent guidance for catheter positioning, reducing the variability in outcomes that arises from differences in operator experience and skill levels.
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 VET System significantly improves embryo transfer precision and success rates by enabling direct visualization and navigation through complex uterine anatomies, potentially increasing pregnancy rates and reducing the complexity and discomfort of the procedure for both patients and operators.
Implementation Method 1
a scope assembly comprising a camera and an illumination source
Implementation Method 2
a handle including a Video Display for displaying the interior of a uterus upon imaging of the uterus with a camera
Data Source
AI summary
A visual embryo transfer catheter system includes a handle and a visualization sheath which is configured to be coupled to the handle and to be inserted into the uterus of a patient. The visualization sheath includes at least three lumens, including a first lumen for a scope assembly including a camera and an illumination source, a second lumen to permit passage of an embryo transfer catheter which is configured to deliver an embryo to the uterus upon imaging of the uterus with the camera when the uterus is illuminated by the illumination source, and a third fluid supply lumen for inflow and outflow of fluid to and from the uterus. Further embodiments include methods for transferring an embryo into a uterus of a patient under visual guidance, and kits for performing a visualized embryo transfer.