Blood bag sterile connection method and device used in the method
Inventors
Assignees
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Publication Number
US-10029088-B2
Publication Date
2018-07-24
Expiration Date
Abstract
A blood bag sterile connection method includes the following steps: 1) placing blood bag tubes above the wire box, clamping positions to be cut by using the vascular clamps, and simultaneously moving the two vascular clamps in opposite directions; 2) heating the composite metal wire, and cutting the blood bag tubes by using the composite metal wire; 3) after cutting the blood bag tubes, aligning the blood bag tubes to be connected; 4) moving the two vascular clamps towards each other, rolling away the used composite metal wire, and rolling out a new composite metal wire; 5) connecting the blood bag tubes by heating the composite metal wire, and simultaneously moving the two vascular clamps towards each other; and 6) returning the wire box to the initial position, taking out the connected blood bag tubes, and returning the vascular clamps to the initial positions.
Core Innovation
The disclosed invention relates to a blood bag sterile connection method using a blood bag sterile connection device with a composite metal wire and a wire box. The method places blood bag tubes above the wire box, clamps positions to be cut by using two vascular clamps, and simultaneously moves the two vascular clamps in opposite directions while the composite metal wire is electrified for heating and the wire box is raised so that the composite metal wire cuts the blood bag tubes.
After cutting, the wire box is raised and retained, and the blood bag tubes to be connected are aligned. The composite metal wire is electrified again for heating while the wire box is moved downwards and the two vascular clamps are moved towards each other, and the used composite metal wire is rolled away under the action of a bobbin while a new composite metal wire is rolled out.
The method connects the blood bag tubes via the composite metal wire while continuing to move the two vascular clamps towards each other. Finally, the wire box is returned to the initial position, the vascular clamps are opened to take out the connected blood bag tubes, and a reset key is clicked to return the vascular clamps to the initial positions to complete the cutting and connecting process.
The invention addresses blade-based sterile connection systems associated with heat-driven chemical change and hot-melt issues by using heated composite metal wire controlled together with coordinated clamp movement and wire-box motion, and by rolling away used wire and rolling out a new wire segment for the subsequent connection.
Claims Coverage
The consolidated content provides one independent claim for a blood bag sterile connection method using a composite metal wire and a wire box with coordinated vascular clamp movement. Additional referenced claim features refine this core method with device structure and control components, yielding six inventive features in total.
Composite metal wire heating and wire box cutting with opposing vascular clamp movement
A method placing blood bag tubes above a wire box, clamping positions to be cut by using two vascular clamps, and simultaneously moving the two vascular clamps in opposite directions; electrifying the composite metal wire for heating while raising the wire box to cut the blood bag tubes.
Wire box retention, tube alignment, and renewed heating while rolling away used wire and rolling out new wire
After cutting, continuing to raise the wire box and retaining, aligning the blood bag tubes to be connected; electrifying the composite metal wire for heating while moving the wire box downwards and moving the two vascular clamps towards each other, rolling away the used composite metal wire under a bobbin action, and rolling out a new composite metal wire.
Tube connection via composite metal wire with clamp closing and system reset to initial positions
Connecting the blood bag tubes via the composite metal wire while simultaneously moving the two vascular clamps towards each other; returning the wire box to the initial position, opening the vascular clamps to take out the connected blood bag tubes, then clicking a reset key to return the vascular clamps to the initial positions.
Coordinated PLC-controlled device architecture with motors, drivers, and touch screen
A blood bag sterile connection device comprising two power supplies, five motors with five motor drivers, a PLC controller, two vascular clamps, a wire box, and a touch screen, where the motors control clamp horizontal movement, wire-box scroll rolling, wire-box up-and-down movement, and additional clamp back-and-forth movement, with motor power distributed by the two power supplies and PLC controller connected to the touch screen.
Wire box groove/chute with left and right scroll routing for the composite metal wire
A wire box with a groove on the upper part and a chute on the lower part, where a left scroll and right scroll are arranged so that the composite metal wire from the left scroll passes through side holes in the groove and is connected to the right scroll.
Wire-box housing structure with left/right box bodies, buckle, semicircular-hole geometry, and guide bars
A device including a box body with left and right box bodies connected by a buckle, containing a left scroll and a right scroll, with a hole formed by two semicircular holes, and having guide bars on both sides of the upper part of the left box body.
Across the independent method and the referenced dependent refinements, the core claim coverage centers on heating a composite metal wire within a wire box to cut and connect blood bag tubes, coordinated with opposing and closing movement of two vascular clamps, and using a bobbin to roll away used wire and roll out new wire. Additional covered aspects include PLC-based control with motors/drivers and a touch screen, and structural wire-box features such as groove/chute and left/right scroll routing, plus left/right box-body housing with semicircular-hole geometry and guide bars.
Stated Advantages
Reduces heat-driven chemical change/hot-melt issues compared with blade-based systems.
Improves wire utilization rate and reduces waste.
Enables quick sterile connections with improved reliability and maintainability via PLC and remote monitoring.
Documented Applications
Blood bag sterile connection using blood bag tubes and a blood bag sterile connection device with a wire box and composite metal wire.
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