Umbilical Cord Channel With Hand Shield for Safe Blood Puncture
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Solution Overview
Problem
Existing devices for collecting umbilical cord blood samples pose risks of puncture injuries to medical personnel due to unpredictable movements of the mother and/or child, and can obstruct blood flow or lead to falsified results.
Innovation Solution
A protective device with an umbilical cord channel, lateral wings, and handle strips that secure the device in the hand, allowing stable grip and protection from puncture injuries, while enabling blood sampling without obstructing blood flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the umbilical cord is fixed with clamps before puncture, then the medical personnel are protected from puncture injuries, but the clamps obstruct blood flow and can lead to falsified blood results
Solution Approach 1:
The harmful clamps are completely removed from the device. Instead of using clamps to fix the umbilical cord, the patent uses a channel-shaped protective device where the cord is held in place without compression, eliminating blood flow obstruction while maintaining protection against puncture injuries
Solution Approach 2:
The channel-shaped protective device acts as an intermediary structure that holds the umbilical cord in place during puncture without requiring direct contact or compression by clamps. The channel provides structural support and protection while allowing free blood flow through the umbilical cord
2Ease of operation
If the finger is positioned in the immediate vicinity of the puncture site for fixation, then the umbilical cord can be securely held, but puncture injuries from unexpected movements are not reliably prevented
Solution Approach 1:
The channel-shaped protective device serves as an intermediary between the medical personnel's finger and the umbilical cord. The finger holds the protective device rather than directly touching the cord, and the channel structure provides the actual fixation and protection, creating a safe distance that prevents puncture injuries even during unexpected movements
Solution Approach 2:
The protection mechanism transitions from direct linear contact (finger touching cord) to a three-dimensional channel structure that encloses and protects the umbilical cord. This spatial reconfiguration allows secure fixation while maintaining safety distance
3Reliability
If the clamp covers the puncture site, then protection from puncture injuries is provided, but it becomes difficult to check whether the puncture needle has been properly inserted
Solution Approach 1:
The protective device is designed with differentiated zones: the channel provides protection while the open top area allows visual access to the puncture site. This local differentiation enables simultaneous protection and verification without compromising either function
Data Source
AI summary
Disclosed is a protective device for the hand of a medical personnel when puncturing an umbilical cord of neonates, comprising: an umbilical cord channel for receiving the umbilical cord of the neonate, two wings arranged at the upper edge of the umbilical channel as hand protection, the wings each extending laterally away from the umbilical channel, and two handle strips, the handle strips being arranged on the two wings and one handle strip in each case extending from the lateral wings in the depth direction of the umbilical cord channel, the height of the respective handle strips corresponding at least to the depth of the umbilical cord channel, so that the umbilical cord channel is arranged between the two handle strips.