Hooked Surgical Device With Rotating Notch for Deep Suturing
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Solution Overview
Problem
Minimally invasive surgery often results in damage to adjacent tissues and other surgical instruments due to the dense and complex distribution of tissues, making it difficult for surgeons to perform deep sutures without causing injuries.
Innovation Solution
A surgical device with a housing, hook portion, and grasping structure featuring a rotating member and actuator mechanism that allows for precise manipulation of sutures without damaging adjacent tissues, utilizing a rotating notch and opening connection system for secure grasp and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a long, thin surgical clamp or hemostatic forceps is used to perform deep sutures, then the surgeon can reach deeper areas, but the risk of damaging or pulling adjacent tissues and other surgical instruments increases
Solution Approach 1:
The surgical device is segmented into a housing and a separately rotatable grasping structure with a hook portion. This segmentation allows the hook to be independently positioned and manipulated, enabling deep suturing while reducing the risk of damaging adjacent tissues through controlled, localized motion rather than whole-device manipulation.
Solution Approach 2:
The grasping structure is designed to be dynamically rotatable relative to the housing through a rotation space and actuator mechanism. This dynamic capability allows the surgeon to adjust the hook's orientation and position in real-time, facilitating precise suturing in deep areas while minimizing interference with surrounding tissues and instruments.
2Length of moving object
If a long, thin surgical clamp or hemostatic forceps is used to perform deep sutures, then the surgeon can reach deeper areas, but the risk of interfering with other surgical instruments increases
Solution Approach 1:
The rotatable grasping structure provides dynamic adaptability, allowing the hook portion to be oriented at different angles and positions independent of the housing orientation. This enables the surgical device to navigate around other instruments in the surgical field, reducing interference while maintaining access to deep areas.
Solution Approach 2:
The grasping structure with its rotation space and notched rotating member is nested within the housing structure. This nested design allows the hook to be stored in a compact configuration when not in use, minimizing interference with other instruments, and deployed to a working position when needed for deep suturing.
3Ease of operation
If the surgical clamp or hemostat is moved back and forth to clamp the stitch, then the suture can be manipulated, but the risk of damaging adjacent tissues and other surgical instruments increases
Solution Approach 1:
Instead of moving the entire surgical device back and forth, only the grasping structure rotates within the rotation space. This localized dynamic motion allows easy suture manipulation through simple rotation of the hook, while the housing remains relatively stationary, minimizing disturbance to adjacent tissues and other instruments.
Solution Approach 2:
The hook portion is pre-positioned and oriented using the actuator mechanism before engaging the suture. This preliminary positioning ensures that once the suture is clamped, minimal back-and-forth movement is needed, reducing the risk of tissue damage while maintaining ease of operation.
Data Source
AI summary
A surgical device has a housing having a hook portion at a distal end of the housing, an opening radially penetrating between the hook portion and the housing; a grasping structure comprising a rotating member rotatably positioned within the hook portion, having a notch radially recessed on a periphery of the rotating member, at least a portion of the notch corresponding to at least a portion of the opening; and reciprocating motion of an actuator along the axis for rotating the rotating member such that the open end of the notch is selectively connected to or misaligned with the open end of the opening.