Artificial Chordae Tendineae Implantation via Segmented Fixing Member
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for treating lesions in the chordae tendineae, such as ruptured chordae tendineae, require invasive surgical procedures with high costs, risks, and long recovery times, and existing medical devices for implanting artificial chordae tendineae have low success rates and long surgery times due to unreliable connections between the needle and the artificial chordae tendineae.
Innovation Solution
An artificial chordae tendineae system with a flexible main body and a fixing member that connects to a puncture needle via a secure mechanism, such as threads, adhesive, rough surface, or grooves, and an anti-slip member to prevent detachment, along with a clamping and puncturing device for precise implantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a needle with a hook-shaped end is used to pick the artificial chordae tendineae, then the device can be implanted in a minimally invasive manner, but the probability of the needle picking the artificial chordae tendineae is low and the success rate of surgery is low
Solution Approach 1:
The artificial chordae tendineae is divided into a flexible main body and a separate fixing member. The fixing member includes a puncture connection member that can be reliably connected to the puncture needle, while the flexible main body provides the chordae function. This segmentation allows the needle to connect to the fixing member rather than trying to pick up the entire chordae structure, significantly improving connection reliability.
Solution Approach 2:
The puncture connection member acts as an intermediary between the puncture needle and the flexible main body. It provides a dedicated connection interface that includes features like threads, adhesive layers, rough surfaces, or grooves that can reliably engage with the needle, solving the problem of low picking probability while maintaining minimally invasive implantation.
2Reliability
If traditional surgical methods are used to implant artificial chordae tendineae, then reliable connection can be achieved, but the surgical procedures are complicated, costs are high, and patient trauma is severe
Solution Approach 1:
The invention changes the key parameter of connection reliability by introducing a specialized fixing member with various connection mechanisms (threads, adhesive, rough surfaces, grooves) rather than relying on simple hook-pick geometry. This allows reliable connection to be achieved through the puncture connection member's design features rather than through complex surgical techniques.
Solution Approach 2:
The fixing member may incorporate multiple material properties and connection mechanisms (e.g., threaded portions for mechanical engagement, adhesive layers for bonding, rough surfaces for friction) to achieve reliable connection. This composite approach to the fixing member design provides robust connection while simplifying the overall surgical procedure.
3Ease of operation
If a simple needle design is used for implantation, then the device is easy to operate, but the connection between the needle and artificial chordae tendineae is unstable
Solution Approach 1:
By separating the artificial chordae tendineae into a flexible main body and a fixing member with a puncture connection member, the design allows the needle to interact with a simple, dedicated connection interface rather than trying to manipulate the entire chordae structure. This segmentation maintains operational simplicity while ensuring connection stability through the specialized connection features.
Solution Approach 2:
The puncture connection member is designed with specific local qualities (threads, adhesive layers, rough surfaces, or grooves) at the connection point to ensure stable engagement with the needle. The rest of the artificial chordae tendineae maintains its flexible, simple structure for easy implantation. This localized enhancement of connection features provides stability without compromising overall simplicity.
Data Source
AI summary
An artificial chordae tendineae includes a chordae tendineae main body with at least one end connected to a fixing member. A side of the fixing member facing away from the chordae tendineae main body is provided with a puncturing connection member. An artificial chordae tendineae implantion system includes a clamping device, a puncturing device including a puncture needle, the artificial chordae tendineae, and a pushing device including a pushing shaft. The puncturing device and the clamping device are received in the pushing shaft. A proximal clamp of the clamping device is provided at a distal end of the pushing shaft. A distal clamp of the clamping device is provided at a distal end of the clamping push rod. A distal end of the puncture needle is provided with a tapped straight tip. The artificial chordae tendineae is received in the clamping device. The fixing member corresponds to the puncture needle.