Rodent Intubation Fixing Device with Inclined Bed
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Solution Overview
Problem
Existing methods for endotracheal intubation of rodents face challenges in stabilizing the anesthesia state and maintaining a suitable angle for intubation, particularly for inexperienced operators due to the small diameter of the rodent's respiratory tract and movement during procedures.
Innovation Solution
A fixing device with a bed that can be angled between 45° to 90°, a support member for a gas supply pipe, and a fastening mechanism to secure the pipe near the rodent's nose, along with a head fixing member to stabilize the rodent's head, facilitating stable anesthesia and intubation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tube is inserted into the respiratory tract of a rodent while looking at the larynx and vocal cord using a laryngoscope, then the intubation can be performed, but it is difficult for inexperienced experimenters due to the small diameter of the respiratory tract and movement of the rodent
Solution Approach 1:
The rodent is pre-anesthetized and positioned on an inclined bed before intubation begins. The head is fixed in advance using a head holder, and the laryngoscope is prepared and positioned. This preliminary preparation stabilizes the rodent and provides optimal viewing angles, making the subsequent intubation procedure easier and faster for inexperienced operators.
Solution Approach 2:
A laryngoscope is introduced as an intermediary tool to visualize the larynx and vocal cords of the rodent. The inclined bed serves as another intermediary that provides the optimal angle for viewing the respiratory tract. These intermediary tools bridge the gap between the operator and the small, difficult-to-visualize respiratory structures.
2Productivity
If the rodent is not anesthetized nor in a stable anesthesia state, then the procedure may be simpler, but it is more difficult to insert a tube because the rodent moves
Solution Approach 1:
Anesthesia is administered in advance before the intubation procedure begins. The rodent is allowed to reach a stable anesthesia state with appropriate muscle relaxation before attempting intubation. This preliminary anesthesia ensures the rodent remains still throughout the procedure, enabling faster and more reliable tube insertion.
Solution Approach 2:
The physiological state of the rodent is changed through anesthesia administration, transitioning from an awake, moving state to an anesthetized, immobile state. This parameter change in the rodent's consciousness and muscle tone level enables stable positioning and facilitates the intubation procedure.
3Manufacturing precision
If the diameter of the respiratory tract is very narrow (1 mm to 1.5 mm), then the rodent is suitable for certain experiments, but it is difficult to see and insert a tube
Solution Approach 1:
A laryngoscope is introduced as an intermediary optical tool to visualize the narrow respiratory tract structures. The inclined bed serves as another intermediary that provides the optimal angle for viewing. These tools amplify the operator's ability to see and manipulate structures that are otherwise too small to visualize clearly.
Solution Approach 2:
The laryngoscope is prepared and positioned in advance to establish optimal viewing conditions before the actual intubation attempt. The inclined bed is set up beforehand to provide the correct angle of view. This preliminary setup ensures that when the operator needs to visualize the respiratory tract, the optimal viewing conditions are already in place.
Data Source
AI summary
A fixing device for endotracheal intubation of rodents is provided. The fixing device includes: a bed configured to place a rodent thereon; a support member attached to an upper end portion of the bed in a transversely movable manner and supporting a gas supply pipe through which an anesthetic gas is supplied to the nose of the rodent; and a fastening member configured to fix the support member to the upper end portion of the bed after an end portion of the gas supply pipe is aligned with the nose of the rodent.