Rigid-Dome Medical Device for Adjustable Pneumoperitoneum Control
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Solution Overview
Problem
Conventional medical devices for creating a temporary pneumoperitoneum are complex, costly, restrict movement and positional adjustment of medical apparatuses, and lack functionality to detect tissue interactions or handle adhesions, increasing user error and device failure risks.
Innovation Solution
A medical device with a separable rigid dome, vacuum pressure regulator, retention ring, and septum allows for adjustable positioning, vacuum control, and visual/ acoustic inspection, reducing complexity and cost while enhancing safety and maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional medical devices are used for creating pneumoperitoneum, then the device can perform the basic insufflation function, but the device complexity increases and cost increases
Solution Approach 1:
The device is divided into separate components: a reusable hub assembly and disposable needle assemblies. The hub contains the complex vacuum regulator and sealing mechanisms, while the needles are simpler replacement units. This segmentation allows the complex functional elements to be concentrated in one component while enabling easy replacement of consumable parts.
Solution Approach 2:
The hub assembly serves multiple functions: it provides the vacuum source, regulates vacuum pressure, seals around the needle, and allows for device inspection. By consolidating these functions into a single multi-functional hub, the overall system complexity is reduced compared to having separate components for each function.
2Reliability
If conventional medical devices are used for creating pneumoperitoneum, then the device can perform insufflation, but the cost increases
Solution Approach 1:
By separating the expensive reusable hub from the disposable needles, the manufacturing cost of each individual component is reduced. The complex vacuum regulation mechanism is manufactured once in the hub, while the simpler needle assemblies can be mass-produced at lower cost and replaced as needed.
Solution Approach 2:
The needle assemblies are designed as disposable components that are discarded after a single use. This eliminates the need for sterilization and maintenance infrastructure, reducing overall system cost. The inexpensive nature of the disposable needles allows for higher safety margins and reduced risk of contamination.
3Reliability
If conventional medical devices are used for creating pneumoperitoneum, then the device can establish pneumoperitoneum, but the movement and positional adjustment of medical apparatuses is restricted
Solution Approach 1:
The needle assembly is designed to be rotatable and adjustable in position relative to the hub. The flexible vacuum seal allows the needle to move and rotate while maintaining the vacuum connection, enabling dynamic adjustment of the surgical apparatus position during the procedure without compromising the pneumoperitoneum.
4Reliability
If conventional medical devices are used for creating pneumoperitoneum, then the device can perform insufflation, but functionality to detect tissue interactions or handle adhesions is lacking, increasing user error and device failure risks
Solution Approach 1:
The vacuum pressure regulator provides real-time feedback on the vacuum level, allowing the operator to detect tissue interactions or adhesions through changes in vacuum pressure. This feedback mechanism enables early detection of potential complications and allows for immediate adjustment of the procedure to prevent user errors or device failures.
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 device facilitates precise surgical site manipulation, reduces user error, and minimizes tissue interaction risks through adjustable vacuum control and real-time inspection, ensuring safer and more efficient surgical procedures.
Implementation Method 1
a vacuum pressure regulator configured to provide a vacuum pressure at an interior of the rigid dome to lift the surgical site into 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.