Prostatic Haemostasis Catheter With Tensioned Balloon Compression
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Solution Overview
Problem
In urological surgery for benign prostatic hyperplasia, existing catheters fail to provide effective haemostasis, leading to prolonged hospital stays due to uncontrollable bleeding and clot formation, as they lack standardized balloon shape and pulling techniques, resulting in unpredictable and inefficient haemostasis.
Innovation Solution
A catheter system with a tensioning tube and inflatable balloons configured to conform to the prostatic cavity, featuring a blocking and pulling mechanism to standardize the tension and position of the catheter, ensuring immediate haemostasis by mechanically occluding bleeding vessels and reducing cavity volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a catheter with balloon is used for bladder drainage and irrigation, then the drainage function is maintained, but effective haemostasis of the prostatic cavity is not achieved
Solution Approach 1:
The catheter is divided into distinct functional segments: an inflatable balloon for prostatic cavity compression, a tensioning tube for standardized pulling force, and drainage channels. This segmentation allows each component to perform its specific function effectively, with the balloon providing mechanical compression for haemostasis while the tensioning mechanism ensures consistent positioning.
Solution Approach 2:
The invention introduces standardized parameters for balloon inflation pressure and tensioning force to optimize haemostasis. By controlling the inflation pressure of the balloon and the tension applied through the tensioning tube, the system achieves reliable vessel occlusion and cavity compression, directly improving haemostasis effectiveness.
2Object-affected harmful factors
If bladder irrigation is used to dilute bleeding, then clot formation is prevented, but bleeding continues and hospital stay is prolonged
Solution Approach 1:
The catheter with inflatable balloon is positioned and inflated before significant clot formation occurs, creating mechanical compression on bleeding vessels and the prostatic cavity. This preliminary mechanical control of bleeding prevents the need for prolonged irrigation therapy, as haemostasis is achieved through direct compression rather than dilution.
3Ease of operation
If non-standardized catheter tension is applied, then insertion is simple, but haemostasis effectiveness becomes unpredictable
Solution Approach 1:
The tensioning tube incorporates a self-regulating mechanism where the balloon's inflation pressure and the tube's tensioning force automatically adjust to maintain optimal positioning. The system self-adjusts to standardize the pulling force on the catheter, ensuring consistent haemostasis effectiveness without requiring complex external control mechanisms.
4Ease of operation
If the balloon does not conform to prostatic cavity irregularities, then insertion is easier, but mechanical occlusion of bleeding vessels is insufficient
Solution Approach 1:
The balloon is designed with dynamic compliance, allowing it to deform and conform to the irregular geometry of the prostatic cavity after insertion. The balloon material and inflation mechanism enable it to adapt its shape to the cavity's contours, ensuring complete contact and effective mechanical compression of bleeding vessels throughout the cavity.
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 system enables immediate haemostasis post-surgery, allowing patients to be discharged sooner, reducing bleeding complications and clot formation by standardizing the pulling force and maintaining catheter position, thus minimizing hospital stay.
Implementation Method 1
exert a determined pressure in the inflated state on the prostatic cavity so as to seal and isolate the prostatic cavity, to reduce the volume of the prostatic cavity and to occlude the vessels
Implementation Method 2
the second balloon being configured to, in the inflated state, extending into the prostatic cavity conforming to the irregularities of said prostatic cavity
Implementation Method 3
a blocking means for blocking the position of said catheter under tension and a pulling means for pulling the catheter to tension said catheter
Data Source
AI summary
A haemostatic device for treating post-operative bleeding of the prostatic cavity, having a body or catheter having a first canal in fluidic communication with a first inflatable balloon formed on the body. The balloon and canal are positionable inside the bladder against the back of the bladder and configured to apply a determined pressure, in the inflated state, on the prostatic cavity to block off and isolate the prostatic cavity, to reduce its volume and to occlude the blood vessels in its cavity wall. The body includes a second canal fluidically connected to a second balloon, to extend in the prostatic cavity while conforming to the irregularities of the prostatic cavity. The device has a tensioning tube for easy insertion of the penis in the flaccid state, without compressing the walls of the penis or the glans, having a longitudinal slot extending between two ends of the tensioning tube.