Suturing Device Viewing Port for Minimally Invasive Visualization

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Solution Overview

Problem

Minimally invasive surgical suturing procedures face challenges with slow and difficult visualization of suture placement, leading to inefficiencies in minimally invasive surgeries like cardiac valve replacements.

Innovation Solution

A surgical suturing device with a guide tip featuring framing arms that define a viewing port and a tissue bite area, allowing for improved visualization of the needle's path and ferrule holder, enabling precise suture placement and ferrule management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If minimally invasive surgical procedures are performed through smaller access wounds, then patient outcomes are improved with less peri-operative pain and more rapid recovery, but suture placement becomes slow, tedious and difficult to visualize

Engineering Contradiction:
Improvepatient outcomesVSAvoidsuture placement speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces a viewing port that provides a third dimensional perspective (visual field) to the traditional linear surgical approach. The framing arms create a window through which the surgeon can directly observe the needle path and tissue bite area, transforming the surgical experience from blind manipulation to visual-guided precision, thereby maintaining high suture placement speed while achieving minimally invasive benefits

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If minimally invasive surgical procedures are performed through smaller access wounds, then patient outcomes are improved with less peri-operative pain and more rapid recovery, but visualization of suture placement becomes difficult

Engineering Contradiction:
Improvepatient outcomesVSAvoidvisualization of suture placement
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The viewing port acts as an intermediary optical window between the surgeon's eye and the deep tissue site. The framing arms create a structured aperture that mediates the visual information, allowing indirect observation of the needle path and tissue bite area without requiring direct line of sight through the minimally invasive access wound

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent introduces a viewing port that provides a third dimensional perspective (visual field) to the traditional linear surgical approach. The framing arms create a window through which the surgeon can directly observe the needle path and tissue bite area, transforming the surgical experience from blind manipulation to visual-guided precision

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Length of moving object

If specialized instruments are used for minimally invasive surgery, then access wound size is reduced, but suture placement remains slow and tedious

Engineering Contradiction:
Improveaccess wound sizeVSAvoidsuture placement speed
Core Design Contradiction:
Length of moving objectVSProductivity

Solution Approach 1:

The instrument incorporates a movable needle that can be dynamically positioned and advanced through the tissue along a controlled path. The needle can be reciprocated through the tissue bite area multiple times, allowing flexible adjustment of penetration depth and angle, thereby maintaining high suture placement speed while achieving minimally invasive benefits

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10799227B2Minimally invasive surgical suturing device with improved visualization
Publication Date: 2020.10.13 LSI SOLUTIONS INC
  • US10799227B2 patent drawing
  • US10799227B2 patent drawing
  • US10799227B2 patent drawing

AI summary

A suturing device is disclosed. The suturing device has a guide tip. The guide tip has first and second framing arms that define a viewing port from a first orientation. The guide tip also has proximal and distal ends of the guide tip which, with the first and second framing arms, define a tissue bite area from a second orientation. The suturing device also has a ferrule holder located in the distal end of the guide tip and centered relative to the first orientation. The suturing device further has a needle movable within the guide tip along a path through the tissue bite area and centrally viewable in the viewing port relative to the first orientation.