Laparoscopic Stapler with Lever Mechanism for Tissue Suturing
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Solution Overview
Problem
Conventional laparoscopic suturing methods are time-consuming and burdensome, increasing the risk of secondary infections and requiring longer anesthesia times due to the need for manual suturing with bio-absorptive materials that require removal.
Innovation Solution
A laparoscopic stapler that uses a lever mechanism to fire an implant binding pin into the body tissue, reducing the need for manual suturing by allowing the pin to be discharged with a touch operation, thereby minimizing tissue damage and shortening surgery time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual suturing with bio-absorptive materials is used, then the suture can be absorbed by the body without removal surgery, but the surgery time becomes longer and patient burden increases
Solution Approach 1:
The patent replaces manual mechanical suturing operations with an automated stapling device that uses a motor-driven mechanism to insert binding pins. The control unit automatically controls the stapling operation based on image recognition results, eliminating the need for time-consuming manual suturing while maintaining the use of bio-absorptive materials that don't require removal surgery.
Solution Approach 2:
The stapling device incorporates automatic control capabilities where the control unit autonomously manages the stapling process based on pre-acquired images and recognition results. The system self-regulates the timing and positioning of stapling operations without requiring continuous manual intervention, thereby reducing surgery time while ensuring proper placement of absorbable sutures.
2Measurement precision
If manual suturing is performed, then precise control over suture placement is possible, but the surgery time increases and anesthesia time increases
Solution Approach 1:
The system performs preliminary actions by acquiring images of the surgical site before the actual stapling operation. The control unit analyzes these pre-acquired images to determine optimal suture placement positions, allowing for precise planning and execution of stapling operations that maintain precision while reducing overall surgery and anesthesia time.
Solution Approach 2:
The patent replaces manual visual assessment and positioning with an automated image recognition system. The control unit processes images to automatically determine precise suture placement locations, maintaining the precision of manual methods while eliminating the time-consuming nature of manual suturing operations.
3Reliability
If conventional suturing methods are used, then the suture can be securely placed, but the risk of secondary infection increases due to longer surgery time
Solution Approach 1:
The automated stapling device maintains secure suture placement through motor-driven precision mechanisms that consistently deliver binding pins to predetermined locations. This automation reduces surgery time significantly compared to manual methods, thereby minimizing the window for potential contamination and reducing secondary infection risk while maintaining suture security.
Solution Approach 2:
The stapling device enables continuous, uninterrupted stapling operations without the pauses and adjustments required in manual suturing. This continuous operation reduces the overall surgery time, minimizing exposure to potential contaminants and reducing secondary infection risk while maintaining consistent suture placement quality.
4Productivity
If automated stapling is implemented, then surgery time is reduced, but the device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it manages image acquisition, processes recognition results, controls motor-driven stapling operations, and regulates overall device operation. By consolidating these functions into a single multi-functional control unit, the device achieves automated stapling capability without proportionally increasing overall system complexity.
Solution Approach 2:
The patent introduces motor-driven mechanisms to replace manual operations, which does increase mechanical complexity. However, this complexity is offset by the elimination of manual dexterity requirements and the standardization of operations, making the device more productive while the complexity is managed through modular design and integrated control systems.
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 laparoscopic stapler efficiently sutures body tissue with reduced tissue damage and shorter surgery times, minimizing patient burden and the risk of secondary infections by automating the suturing process.
Implementation Method 1
a body that fires an inserted implant toward a target portion by using a lever rule to suture the target portion
Data Source
AI summary
The present invention relates to a laparoscopic stapler for suturing body tissue cut during laparoscopic surgery, and more particularly, to a laparoscopic stapler in which implant binding pins to be continuously fired can be correctly positioned using an implant alignment unit for aligning an implant assembly, and an implant assembly pressing member. Therefore, malfunctioning is prevented, and implant loading, transport, and discharge can proceed smoothly.