Curved Nozzle Sprayer with Tip Light for Laparoscopic Surgery
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Solution Overview
Problem
In laparoscopic surgeries, it is challenging to accurately apply anti-adhesive materials to incisional wounds due to the difficulty in visualizing the direction and distance of the nozzle from the target site, leading to uneven spraying and increased drug usage.
Innovation Solution
A sprayer with a nozzle featuring a curved elongated body and an irradiation unit at the leading end that emits light, allowing for precise alignment and application of the drug by matching the diffusion diameter of the light with the spray range, ensuring accurate targeting and reduced drug wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a nozzle is inserted through an opening in the incisional wound to apply anti-adhesive material, then the drug can be delivered to the target site, but the direction and distance of the nozzle cannot be visualized, causing uneven spraying and increased drug usage
Solution Approach 1:
A light source is introduced as an intermediary element at the nozzle tip to illuminate the target site and provide visual feedback on the nozzle's position and orientation. This allows the surgeon to see through the abdominal wall to the incisional wound, enabling precise control of drug application while preventing material waste from uneven spraying.
2Reliability
If the nozzle is inserted deep into the abdominal cavity, then the anti-adhesive material can be applied to the incisional wound, but the surgeon cannot directly view the nozzle position and direction
Solution Approach 1:
The light source acts as a mediator that transmits visual information from the deep abdominal cavity to the surgeon's view. By illuminating the incisional wound and surrounding tissues, it creates a visible reference frame that allows the surgeon to accurately determine the nozzle's position and orientation without direct line-of-sight access.
Solution Approach 2:
The light source emits illumination that allows the surgeon to perceive changes in color, brightness, or contrast at the target site, providing visual feedback about the nozzle's proximity and orientation to the incisional wound. This enables real-time adjustment of the nozzle position for accurate drug delivery.
3Manufacturing precision
If the nozzle is positioned close to the incisional wound, then the anti-adhesive material can be applied precisely, but the surgeon cannot see the nozzle tip and its orientation
Solution Approach 1:
The light source serves as an intermediary that bridges the visual gap between the surgeon and the nozzle tip. By illuminating the immediate vicinity of the nozzle and the incisional wound, it provides optical information about the nozzle's orientation and position, enabling precise drug application without loss of visual feedback.
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 sprayer enables precise application of anti-adhesive materials to incisional wounds by predicting the nozzle's direction and distance based on the light's irradiation pattern, improving accuracy and reducing material usage during surgeries.
Implementation Method 1
an irradiation unit disposed at a leading end of the nozzle and emitting light that is oriented and diffuses in a leading end direction of the nozzle
Data Source
AI summary
A sprayer includes: a sprayer body; a nozzle extending from the sprayer body; and an irradiation unit disposed on a leading end of the nozzle and emitting light that is oriented and diffuses in a leading end direction of the nozzle. The nozzle includes: an elongated nozzle body extending from the sprayer body and having a curved portion on a leading end side; and a nozzle head disposed on a leading end of the nozzle body. The irradiation unit is arranged inside a curve shape of the curved portion.