Disposable Circumcision Device with Irreversible Locking Mechanism
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Solution Overview
Problem
Current circumcision devices, such as the Gomco and Mogen clamps, are not suitable for mass circumcision programs due to reusability concerns, risk of glans damage, and the need for separate scalpels, which pose health risks and are costly and complex. Additionally, existing single-use devices often have multiple components that can be dislocated or reused, and require extended wear, leading to complications and infection risks.
Innovation Solution
A circumcision device with two jaws that crush the foreskin transversely, featuring a movable cutting assembly and a mechanism that locks irreversibly after use, eliminating the need for separate scalpels and ensuring single-use functionality through a hinged interconnection and over-center locking mechanism, along with a glans penis protector for safe adhesion release and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reusable clamps (Gomco, Mogen) are used, then hemostasis and circumcision function are achieved, but infection risk increases due to reusability
Solution Approach 1:
The patent implements a single-use circumcision device that is discarded after one use, eliminating infection risks associated with reusable devices. The entire device including jaws, cutting assembly, and locking mechanism is designed as a disposable unit that cannot be reused, directly addressing the WHO requirement for single-use devices in mass circumcision programs.
2Object-affected harmful factors
If separate scalpels are used for cutting, then circumcision function is achieved, but health risks and complexity increase
Solution Approach 1:
The patent combines the clamping function and cutting function into a single integrated device. The cutting assembly is mounted on one of the jaws and includes a blade that traverses the crushed foreskin to make the cut. This integration eliminates the need for separate scalpels and reduces the number of instruments required, directly addressing the background concerns about scalpel-related health risks and procedural complexity.
3Reliability
If clamping time is extended to 5 minutes for hemostasis, then bleeding control is improved, but procedure time increases
Solution Approach 1:
The device pre-positions the cutting assembly on the jaw and maintains the clamping force in optimal position throughout the procedure. The cutting blade is ready to traverse the crushed foreskin immediately when needed, eliminating delays associated with repositioning instruments. This allows the full 5-minute clamping period to be utilized for hemostasis without losing time to instrument manipulation.
4Adaptability or versatility
If single-use devices are made with multiple components, then functionality is improved, but reuse prevention becomes difficult
Solution Approach 1:
The device is divided into functional segments (jaws, cutting assembly, locking mechanism) that are interconnected in a way that maintains functionality while preventing reuse. The hinged interconnection with over-center locking allows proper operation during use, but the irreversible locking state prevents re-opening and reuse of the device, satisfying both functionality and single-use requirements.
5Productivity
If devices require extended wear (5-7 days), then circumcision function is achieved, but complication risks increase
Solution Approach 1:
The device is designed to be used immediately and discarded after a single use, eliminating the need for extended wear on the patient's body. The entire device is removed after the circumcision procedure is complete, avoiding the infection and decomposition risks associated with devices that remain in place for 5-7 days.
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 provides a safe, reliable, and cost-effective circumcision method that prevents reuse, reduces the risk of glans damage, and eliminates the need for separate scalpels, while ensuring single-use functionality and minimizing infection risks, making it suitable for large-scale HIV prevention efforts.
Implementation Method 1
two jaws (1, 2) configured to crush a foreskin between them along an elongated crush region... to promote hemostasis within the elongated crush region
Implementation Method 2
a cutting assembly movable from one end region of the jaws towards an opposite end region thereof... so as to be capable of traversing and severing a crushed foreskin
Data Source
AI summary
A circumcision device is provided by the present invention. The device comprises two jaws configured to crush a foreskin between them along a crush region transverse to a foreskin and transverse to a general direction in which a penis being circumcised extends. The jaws are movable between an open inoperative position and a closed operative position in which a clamping and crushing force may be exerted to promote hemostasis within the crush region. The device includes a cutting assembly capable of traversing and severing a crushed foreskin within or adjacent the crush region. The invention extends to a glans penis protector comprising a handle separable from a transverse glans penis engaging cover so that the handle can be separated from the glans penis engaging cover during a circumcision procedure.