Rigid Dome Pneumoperitoneum Access for Vacuum-Sealed Instrument Motion
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Solution Overview
Problem
Conventional devices for creating a temporary pneumoperitoneum in laparoscopic surgery are limited by restricted movement, high manufacturing costs, complexity leading to increased user error and device failure, and lack of functionality for detecting tissue interactions or adhesions.
Innovation Solution
A medical device with a rigid dome, vacuum pressure regulator, retention ring, and septum that allows for positional adjustment, vacuum control, and detection of surgical site parameters, reducing complexity and cost while minimizing user error and device failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional devices are used for creating pneumoperitoneum, then the basic function of insufflating gas is achieved, but the movement of the medical apparatus is restricted and positional adjustment is limited
Solution Approach 1:
The device is divided into separate functional components: a Veress needle for gas insufflation, a trocar for apparatus insertion, and a rigid dome structure. This segmentation allows each component to be optimized independently while maintaining overall functionality, enabling better movement and positioning capabilities.
Solution Approach 2:
The medical apparatus is designed to be movable within the rigid dome rather than fixed, allowing dynamic adjustment of position and orientation during surgery. The apparatus can be maneuvered freely within the confined space created by the dome, improving ease of operation.
2Ease of manufacture
If conventional devices with complex construction are used, then certain functions are achieved, but manufacturing cost increases
Solution Approach 1:
The device is designed as a disposable single-use system, eliminating the need for complex sterilization and cleaning mechanisms. This reduces manufacturing complexity and cost while ensuring reliability through fresh, unused components for each procedure. The disposable nature also prevents cross-contamination and device failure from previous use.
3Adaptability or versatility
If conventional devices are used, then basic pneumoperitoneum creation is achieved, but functionality to detect tissue interactions or adhesions is lacking
Solution Approach 1:
The rigid dome structure serves multiple functions: it creates a confined working space, provides a seal for vacuum application, and acts as a platform for detecting tissue interactions. The vacuum port enables additional functionality for adhesion detection and tissue manipulation without requiring separate complex detection devices.
Solution Approach 2:
The rigid dome acts as an intermediary between the external vacuum source and the surgical site, translating vacuum pressure into controlled tissue manipulation and enabling detection of tissue interactions through the dome structure itself, which can transmit mechanical signals from the abdominal cavity.
4Ease of operation
If conventional devices are used, then the procedure can be performed, but user error increases due to complexity
Solution Approach 1:
The device is designed with intuitive self-aligning features and automatic sealing mechanisms that reduce the need for complex user manipulation. The rigid dome automatically seals around the medical apparatus, and the vacuum system self-regulates, minimizing user error while maintaining simplicity.
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
Enables precise manipulation and inspection of the surgical site, reduces manufacturing costs, and enhances safety by detecting tissue interactions, thereby improving surgical outcomes and device reliability.
Implementation Method 1
coupling a vacuum source to a vacuum port of the rigid dome to supply a reduced pressure to an interior of the rigid dome
Data Source
AI summary
Medical devices include a rigid dome, a viewing window, a vacuum port, a vacuum pressure regulator, an aperture, and a septum. The rigid dome is hemispherical and includes a first dome stage, a second dome stage distal on the first dome stage, and a transition between the first dome stage and the second dome stage. The viewing window is acoustically and\or optically transparent to allow for inspection of the surgical site. The vacuum port allows for a reduction of a pressure on the interior of the rigid dome. The vacuum pressure regulator regulates the pressure on the interior of the rigid dome. The aperture provides access to the interior of the rigid dome and the surgical site. The septum engages with the second dome stage to allow for insertion of a surgical instrument with resistance to loss of the pressure on the interior of the rigid dome.