JP-2022513793-A5 -

Dates

Publication Date

20221215

Application Date

20191211

Description

1. An intravascular deployment catheter for supplying an implantable device,A long, slender, and flexible tubular body having a proximal end, a distal end, and a central internal passage,A sheath provided at the distal end of the tubular body, having a side wall defining a cavity for removably receiving the embedded device,A first engaging element, which is provided on the side wall and extends radially and is exposed in the cavity, is provided to engage with a complementary second engaging element in the embedded device.An intravascular deployment catheter characterized by comprising the following features.2. The intravascular deployment catheter according to claim 1, characterized in that the sheath is deformable between a radially expanded form for housing the implantable device and a radially contracted form after the implantable device has been deployed.3. The intravascular deployment catheter according to claim 1 or 2, characterized in that the first engaging element includes a helical thread.4. The intravascular deployment catheter according to any one of claims 1 to 3, further comprising an implantable device within the sheath.5. The intravascular deployment catheter according to claim 4, characterized in that the implantable device advances axially in accordance with the rotation of the implantable device relative to the sheath.6. The intravascular deployment catheter according to claim 5, characterized in that the implantable device includes a tissue anchor.7. The intravascular deployment catheter according to 6, characterized in that the tissue anchor has a helical engaging anchor and a hub that rotatably engage with the first engaging element.8. A long, slender, and flexible tubular body having a proximal end, a distal end, and a central internal passage,A sheath at the distal end of the tubular body, comprising a sheath having side walls defining a cavity,A ventricular tissue anchor, which is removably disposed within the cavity, comprising a ventricular tissue anchor having a hub and a helical tissue anchor,A first engaging element provided on the side wall and exposed to the cavity for engaging the helical structure anchor, which extends radially to at least one sideEquipped with,A ventricular tissue anchor delivery system characterized in that the rotation of the helical tissue anchor relative to the tubular body advances the helical tissue anchor distally from the cavity.9. The ventricular tissue anchor delivery system according to claim 8, further comprising an anchor driver extending along the entire length of the tubular body.10. The ventricular tissue anchoring delivery system according to 8 or 9, characterized in that the first engaging element comprises a helical channel formed on the inner surface of the sheath.11. The ventricular tissue anchor delivery system according to any one of 8 to 10, characterized in that the sheath is deformable between a radially expanded form for accommodating the helical tissue anchor and a radially contracted form after the helical tissue anchor has been deployed.12. The ventricular tissue anchor delivery system according to 11, characterized in that the sheath is deformable from a radially expanded form to a radially contracted form in response to proximal retraction toward the delivery catheter.13. A method for deploying an implant through a delivery catheter from a deployment catheter,The outer diameter of the implant is larger than the outer diameter of the delivery catheter.The aforementioned method,The steps include deploying the implant from a foldable sheath at the distal end of the deployment catheter,The steps include: retracting the deployment catheter proximal to the delivery catheter;The steps include folding the sheath in response to the retraction of the deployment catheter proximal to the delivery catheter,A method characterized by including14. The method according to 13, characterized in that the implant includes a tissue anchor.15. The method according to 14, characterized in that the step of deploying the implant includes rotating the tissue anchor relative to the sheath.16. An intravascular suture cutter for cutting sutures,A cutter housing that defines the suture path passing through the interior,A cutter head having a cutting edge is rotatably disposed within the cutter housing,Equipped with,An intravascular suture cutter characterized in that, by the rotation of the cutter head within the cutter housing, the cutting edge traverses the suture path and cuts the suture extending along the suture path.17. The intravascular suture cutter according to 16, characterized in that the suture route is provided between an opening at the distal end of the cutter housing and a window formed on the side of the cutter housing.18. The intravascular suture cutter according to claim 16 or 17, characterized in that the cutter housing defines a barrel that forms a cylindrical inner surface.19. Further comprising an outer sheath coupled to the cutter h