Peristaltic Pump Mounting Member for Tube Attachment
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Solution Overview
Problem
Conventional peristaltic pumps require manual and labor-intensive processes for attaching and detaching flexible tubes, which hampers workability and efficiency in dialysis treatments.
Innovation Solution
An installation member with a main body attachable to the stator, featuring an upstream-side and downstream-side fixing portion, a notch portion, and a connection portion, which facilitates easy attachment and detachment of the flexible tube by positioning the fixing portions and allowing rotational movement, along with a press means for detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a retaining means is used to retain each of the upstream-side and downstream-side of the flexible tube, then the flexible tube can be firmly retained, but the work of retaining and fixing the flexible tube needs to be performed manually, reducing workability
Solution Approach 1:
The downstream-side fixing portion is designed to be automatically retained by the rotor's rotation, eliminating the need for manual retention operations. The rotor's rotational movement automatically engages with and secures the downstream-side fixing portion, making the system self-retaining without requiring additional manual intervention.
Solution Approach 2:
The fixing mechanism is divided into two independent portions: upstream-side fixing portion that requires manual retention, and downstream-side fixing portion that is automatically retained by rotor rotation. This segmentation allows different retention methods to be applied to different parts of the flexible tube, optimizing both reliability and ease of operation.
2Adaptability or versatility
If the flexible tube is detached from the stator, then the pump can be reused, but work of releasing the retention on each of the upstream-side and downstream-side is needed, reducing workability at detachment
Solution Approach 1:
The automatic retention mechanism means that during detachment, the downstream-side fixing portion releases automatically as the rotor rotates away, eliminating the need for manual release operations and simplifying the detachment process while maintaining reusability.
3Reliability
If only a small clearance is provided between the inner circumferential wall surface of the attachment recessed portion and the roller, then peristaltic motion can be effectively imparted, but the flexible tube is difficult to insert, requiring manual rotation of the rotor
Solution Approach 1:
The downstream-side fixing portion is positioned and prepared in advance within the attachment recessed portion, so that when the rotor rotates, the peristaltic motion is immediately effective without requiring additional manual insertion efforts. The preliminary positioning facilitates smoother attachment.
4Ease of operation
If the upstream-side of the flexible tube is fixed to regulate its movement, then attachment workability is improved, but the downstream-side still requires manual retention, limiting further improvement
Solution Approach 1:
The downstream-side fixing portion transitions from a static retention requirement to a dynamic automatic retention mechanism driven by rotor rotation. This dynamic approach reduces the need for complex static retention structures while improving overall attachment workability.
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
Enhances the ease and smoothness of attaching and detaching flexible tubes to and from the stator, reducing manual labor and improving workability, while allowing for collective disposal of the main body and flexible tube after treatment.
Implementation Method 1
a roller that is formed in the rotor and that causes the fluid to flow in the flexible tube to be peristaltic by imparting peristaltic motion to the flexible tube to be peristaltic attached to the attachment recessed portion in a longitudinal direction in association with rotation of the rotor while compressing the flexible tube to be peristaltic in a radial direction
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
An installation member and a peristaltic pump are provided that allow work of attachment and work of detachment of a flexible tube to be peristaltic to and from a stator to be performed more easily and smoothly. An installation member (12) that is to be detachably attached to a peristaltic pump including: a stator (6) including an attachment recessed portion (6a), in which a flexible tube (D) to be peristaltic, is attached; a rotor (7) that is rotatably driven in the attachment recessed portion (6a); and a roller (8) that causes the fluid to flow by imparting peristaltic motion to the flexible tube (D) to be peristaltic attached to the attachment recessed portion (6a) in a longitudinal direction in association with rotation of the rotor (7) while compressing the flexible tube (D) to be peristaltic in a radial direction. The installation member including: a main body (13) that is attachable to a predetermined portion of the stator, and that is formed integrally with a downstream-side fixing portion (Db) of the flexible tube (D) to be peristaltic; and a notch portion (13a) that allows an upstream-side fixing portion (Da) of the flexible tube (D) to be peristaltic to be positioned.