Catheter Insertion Position Sensing and Balloon Adjustment
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Solution Overview
Problem
Current catheter apparatuses lack confirmation of correct insertion into the bladder and fail to adjust balloon size according to patient posture, leading to discomfort and inefficient urine discharge.
Innovation Solution
A catheter apparatus with a sensing module to confirm correct insertion and an adjustable elastic unit that changes size based on patient posture, using a control unit and indicating unit to provide feedback and adjust balloon size automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the catheter apparatus is inserted into the bladder without position confirmation, then the operation is simple and fast, but the operator cannot know whether the catheter is in the correct position leading to potential complications
Solution Approach 1:
The patent incorporates a sensing module that detects the catheter's position within the bladder and provides feedback through an indicating unit. This feedback mechanism allows the operator to confirm correct insertion without adding significant complexity to the overall operation, resolving the contradiction between ease of operation and position accuracy reliability.
Solution Approach 2:
The patent replaces manual mechanical position checking with an automated sensing module that uses electrical or optical detection methods. This substitution maintains operational simplicity while significantly improving position confirmation reliability through automated detection rather than manual verification.
2Device complexity
If the balloon size is fixed, then the device structure is simple, but the patient experiences discomfort in different postures
Solution Approach 1:
The patent implements a dynamic balloon size adjustment mechanism that can change the balloon volume based on patient posture detection. The system transitions from a static fixed-size balloon to a dynamic adjustable balloon, reducing patient discomfort while accepting increased device complexity through automated control mechanisms.
Solution Approach 2:
The patent changes the physical parameter of balloon size according to detected patient posture conditions. By adjusting the balloon volume parameter dynamically rather than maintaining a fixed size, the system adapts to different patient positions and reduces discomfort, accepting the trade-off of increased device complexity.
3Ease of operation
If the operator manually operates the aspirator pump without position confirmation, then the operation is straightforward, but the urine discharge effect is poor due to early or incorrect operation
Solution Approach 1:
The sensing module provides real-time feedback on catheter position to the control unit, which automatically controls the aspirator pump only when correct insertion is confirmed. This feedback-based control ensures optimal urine discharge efficiency by preventing premature or incorrect pump operation, while the automation maintains ease of use for the operator.
Solution Approach 2:
The system performs self-verification of catheter position and automatic initiation of urine discharge through the aspirator pump without requiring manual verification or initiation by the operator. This self-service capability improves discharge efficiency while keeping the operator's role simple and straightforward.
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
Ensures correct insertion confirmation and reduces patient discomfort by adjusting balloon size according to posture, enhancing urine discharge efficiency and operator convenience.
Implementation Method 1
the elastic unit is disposed at the second terminal of the tube and coupled to the control unit... if the sensing result is that the second terminal of the tube is inserted to the correct position in the bladder, the control unit automatically controls the elastic unit to swell in the bladder
Implementation Method 2
The sensing module is coupled to the control unit and used to sense whether the second terminal of the tube is inserted to the correct position in the bladder and transmit the sensing result to the control unit
Implementation Method 3
the elastic unit and the indicating unit are disposed in the same air flow passage and an air flows through the elastic unit at first, when the second terminal of the tube is not inserted into the correct position in the bladder, the elastic unit fails to swell and the air flowing through the elastic unit flows to the indicating unit to move the indicator of the indicating unit from a first position to a second position
Data Source
AI summary
A catheter apparatus includes a replaceable module, a main body portion and a sensing module. The main body portion includes a tube, a urine guide opening and an elastic unit. The replaceable module includes a control unit. A first terminal of the tube is coupled to the replaceable module and a second terminal of the tube is inserted into the bladder. The urine guide opening is disposed at the second terminal of the tube and used to guide urine into the tube when the second terminal of the tube is inserted into the bladder. The elastic unit is disposed at the second terminal of the tube and coupled to the control unit. The sensing module is coupled to the control unit and used to sense whether the second terminal of the tube is inserted to the correct position in the bladder and transmit sensing result to the control unit.