Angled Grip Needle Holder for Stability
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Solution Overview
Problem
Conventional needle holders are prone to unwanted movement during use, causing discomfort to patients and increasing the risk of needle displacement during blood drawing, which can lead to inaccurate positioning and safety hazards for phlebotomists.
Innovation Solution
A needle holder with a grip portion angularly offset from the needle axis, providing improved manual support and stability, combined with a guard member and control formations on the body to minimize axial movement and facilitate secure fluid receptacle connection without pushing against the needle axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional tubular needle holder is used, then the structure is simple, but the holder is prone to unwanted movement during use
Solution Approach 1:
The patent introduces a grip portion that extends from the tubular body at an angular offset, adding a dimensional element perpendicular to the needle axis. This allows the phlebotomist to hold the device with fingers wrapped around the grip portion, providing stabilizing force in a direction perpendicular to the needle axis and preventing unwanted movement during blood collection.
2Ease of operation
If the phlebotomist swaps hands to support the needle holder, then the other hand can pick up and insert blood collection tubes, but the needle positioning is disturbed
Solution Approach 1:
The needle holder is segmented into distinct functional portions: a tubular body for needle reception and a separate grip portion for manual support. This segmentation allows the phlebotomist to maintain a firm grip on the grip portion with one hand, stabilizing the needle, while the other hand can freely insert and remove blood collection tubes from the open end of the tubular body without disturbing needle positioning.
3Ease of operation
If force is applied to push the tube against the needle axis to puncture the seal, then the tube can be connected, but the needle may move and be removed from the blood vessel
Solution Approach 1:
The grip portion extends from the tubular body at an angular offset from the needle axis, providing a leverage point that allows the phlebotomist to apply stabilizing force perpendicular to the needle axis. This enables the user to push the tube against the needle to puncture the seal while maintaining control and preventing excessive axial movement that could dislodge the needle from the blood vessel.
Data Source
AI summary
A medical needle holder (10) having a generally hollow body (18) which extends in the direction of an axis (62) from a first end (20) to a second end (22). The first end is shaped for reception of a needle (50) therein and the second end is open to allow for insertion of a fluid receptacle (16). The first axis is substantially aligned in use with a needle positioned in the first end of the body. The needle holder comprises a grip portion (28) which extends outwardly from the body in a direction which is angularly offset from the first axis. The grip portion may be actuable between an in-use condition and a disposal condition in which the grip portion covers a needle in the needle holder. The body (18) may comprise control formations on its inner surface to allow for control over the insertion of a fluid receptacle (16) into the body.