Tissue Clip Actuation via Nested Hydraulic Cylinder
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Solution Overview
Problem
Existing devices for connecting body tissues inside the body are complex and often limited to specific applications, making them unsuitable for simple and efficient use in endoscopic or laparoscopic interventions.
Innovation Solution
A compact device featuring a hydraulic cylinder and/or piston rod arranged between the intervention sections of tissue clips, with rotor elements that swivel to turn tissue clips from a storage position to a work position, allowing for efficient connection of body tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a compact device design is used to fit body openings, then the device can be inserted into body openings for internal tissue connection, but the device complexity increases due to space constraints
Solution Approach 1:
The hydraulic cylinder is positioned inside the space between engagement sections of tissue clamps in storage position, and the piston rod is firmly connected to the slide. This nesting arrangement allows the drive mechanism to be compact while maintaining full functionality, resolving the contradiction between small device size and operational complexity.
Solution Approach 2:
Rotor elements pivot tissue clamps from a storage position in one plane to a working position in a different plane perpendicular to the first plane. This dimensional transformation allows the device to achieve complex tissue manipulation functions within a compact footprint, addressing both size constraints and functional requirements.
2Reliability
If multiple components are used to manipulate tissue clamps, then the tissue connection function is reliable, but the device becomes more complex and less suitable for endoscopic use
Solution Approach 1:
The slider performs dual functions: it advances the tissue clamp in the working position and deforms it into a clamping position. This merging of advancement and deformation functions into a single component reduces the number of parts while maintaining reliable tissue connection, directly addressing the contradiction between reliability and simplicity.
Solution Approach 2:
The hydraulic cylinder serves multiple purposes: it provides the actuating force for advancing the slide and can be positioned within the engagement sections to enable compact storage. This multi-functionality reduces the need for separate components, enhancing reliability while simplifying the overall device structure.
3Volume of moving object
If the device is designed with minimal components for compactness, then it fits body openings, but the actuating force required for tissue connection may be insufficient
Solution Approach 1:
A hydraulic cylinder is used to generate and transmit actuating forces within the compact device. The hydraulic system provides sufficient force for tissue clamp advancement and deformation despite the limited space, resolving the contradiction between compact size and adequate actuating force capability.
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 enables a simple, efficient, and reliable connection of body tissues inside the body, even in confined spaces, with a high degree of compactness and minimal need for direct visual and tactile control.
Implementation Method 1
a hydraulic cylinder and/or a piston rod are arranged at least partially inside the space which lies between the engagement sections of the tissue clamps in the storage position
Data Source
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AI summary
The invention relates to an apparatus for connecting body tissues, having a head part (100) that can be inserted into a body opening and that has a longitudinal axis (6a), wherein a plurality of tissue clamps (1) are received in a storage position (7) in the head part (100), said tissue clamps consisting of a linear main portion (2) and two engaging portions (3) protruding perpendicularly therefrom, and respectively being aligned in a first plane (7a) that is substantially perpendicular to the longitudinal axis (6a). An ideal employability in the human body is achieved by virtue of a hydraulic cylinder (6) and/or a cylinder rod (10) being arranged at least in part in the interior of the space that is available between the engaging portions (3) of the tissue clamps (1) in the storage position (7) and, preferably, by virtue of the cylinder rod (10) being securely connected to a slider (17).