Suture Needle Crimping Pin Layout for Precise Attachment
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Solution Overview
Problem
The existing crimping devices for securing sutures to double-pointed medical suture needles lack precision and efficiency, particularly in industrial-scale applications, where precise alignment and deformation of the needle are crucial for secure attachment.
Innovation Solution
A crimping device comprising a lower block and an upper block with perpendicular grooves and crimping pins that deform the needle at the through-hole, allowing for precise alignment and secure bonding of the suture to the needle, utilizing springs for controlled deformation and adjustable calibration pins for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a simple block structure is used for crimping, then the device is easier to manufacture, but the precision of needle deformation and suture attachment is insufficient
Solution Approach 1:
The crimping device is divided into distinct functional components: a lower block with a lower crimping pin, an upper block with an upper crimping pin, and intermediate blocks that guide the pins. Each component has a specific function, allowing precise control of the crimping process while maintaining manufacturability through modular design.
Solution Approach 2:
The device introduces vertical positioning channels for the crimping pins, adding a dimensional control mechanism. The pins move vertically within confined channels to reach precise deformation positions, transforming a simple pressing action into a controlled multi-stage process with improved precision.
2Productivity
If manual threading of suture on needle is used, then flexibility in thread and needle combinations is maintained, but time-consuming operation increases
Solution Approach 1:
The suture is pre-threaded through the needle before the crimping operation begins. The crimping device then secures the pre-positioned suture through controlled deformation, eliminating time-consuming on-site threading while ensuring secure attachment through the precision crimping mechanism.
Solution Approach 2:
The manual threading operation is replaced by a mechanical crimping system that secures the suture through controlled deformation of the needle. This substitution transforms a time-consuming manual process into an automated, precise mechanical operation suitable for industrial-scale production.
3Reliability
If imprecise crimping is performed, then the device structure remains simple, but suture attachment security is compromised
Solution Approach 1:
The crimping pins are designed with specific local characteristics: pointed ends for precise needle deformation, confined movement within vertical channels, and controlled interaction with the needle at specific locations. This local specialization ensures reliable suture attachment without requiring complex overall device architecture.
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 provides a precise, efficient, and reliable method for attaching sutures to double-pointed medical suture needles, ensuring secure bonding and minimizing tissue trauma, suitable for industrial-scale production and use in surgical procedures.
Implementation Method 1
the lower crimping pin and the upper crimping pin are configured to be moved in the lower crimping pin channel and the upper crimping pin channel, respectively, towards the intercept of the first groove and second groove to secure the suture to the double-pointed medical suture needle
Implementation Method 2
a lower block and an upper block that can be pressed towards each other to secure the suture to the double-pointed medical suture needle
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present disclosure relates to a crimping device for securing a suture to a double-pointed medical suture needle, the crimping device comprising: a lower block and an upper block that can be pressed towards each other to secure the suture to the double-pointed medical suture needle, the lower block comprising: a first groove configured to accommodate the suture; a second groove configured to accommodate the double-pointed medical suture needle, the first and second grooves arranged substantially perpendicularly to each other, wherein the lower block comprises a lower crimping pin arranged in a lower crimping pin channel at an intercept of the first groove and the second groove; wherein the upper block comprises an upper crimping pin arranged in an upper crimping pin channel at the intercept of the first groove and the second groove; wherein the lower crimping pin and the upper crimping pin are configured to be moved in the lower crimping pin channel and the upper crimping pin channel, respectively, towards the intercept of the first groove and second groove to secure the suture to the double-pointed medical suture needle. The disclosure further relates to a method of securing at least one suture to at least one double-pointed medical suture needle.