Catheter pump and mold
JP2026517586APending Publication Date: 2026-06-02MAGASSIST CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- MAGASSIST CO LTD
- Filing Date
- 2024-05-22
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Foldable catheter pumps face instability in maintaining clearance between the pump and impeller due to lateral forces, leading to radial deformation and potential collisions, which can cause impeller failure.
Method used
A catheter pump with a stand that includes preforms at the connectors, allowing for prestress when unfolded, enhancing lateral rigidity and maintaining stable pump clearance by twisting inward upon assembly, using a mold to shape the stand with tapered and outward-expanding portions.
Benefits of technology
The improved stand structure resists lateral forces effectively, preventing radial deformation and impeller collisions, ensuring continuous blood pumping functionality.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026517586000001_ABST
Abstract
This application discloses a catheter pump and a mold, the catheter pump comprising a catheter and a pump head for delivering blood to a desired location in the heart via the catheter and pumping blood. The pump head comprises a pump housing having a blood inlet and a blood outlet, and an impeller housed within the pump housing. The pump housing includes a stand that can be operated to switch between a radially folded state and a radially unfolded state, and in the radially unfolded state, the stand comprises a body portion, an inlet portion located at the distal axial end of the body portion, and an outlet portion located at the proximal axial end of the body portion, both of which are connected to and supported by the body portion. A proximal end connector is connected to the proximal end of the outlet portion, and a distal end connector is connected to the distal end of the inlet portion. At least one of the proximal end connector and the distal end connector includes a preform. In the natural state when the stand is not assembled to the catheter pump, the radial distance from the inner end of the preform to the central axis of the stand is less than the radial distance from the outer end of the preform to the central axis of the stand.
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