Shanghai Microport Cardioflow Medtech Co., Ltd.

Opple Lighting Co., Ltd.

Suzhou Opple Lighting Co., Ltd.

Jie Mei

Guoming Chen

Baozhu Gui

Xuwen Wu

Yu Li

Yu Meng Li

Yueping Wang

Dun Chen

Meichen Liu

The present invention provides a delivery device for medical implants. The delivery device has a detachable structure and includes a handle () and a catheter assembly () that are separated from each other. The handle () and the catheter assembly () are connected by a transmission shaft (). By configuring the handle () and the catheter assembly () to be separated from each other, the catheter assembly () has less weight than that of a traditional delivery assembly, so that the operator can position the medical implant and adjust the position of the medical implant by moving only the catheter assembly (). The catheter assembly () is lighter in weight and smaller in size, which improves the stability, precision and accuracy of the operation. Moreover, the impact of vibration and/or movement of the handle () on the catheter assembly () are avoided, which further improves the stability and thus the quality of the operation.

Medical implant conveying device

A delivery device (') for loading, delivering and deploying an implant () includes a handle (), an inner tubular core (), a sheath tube () and a guide tip (). The inner tubular core () is coupled, at a proximal end thereof, to an inner tubular core actuation member arranged in the handle (), and the guide tip () is disposed at a distal end of the inner tubular core () and fixedly connected to a distal end of the sheath tube (). The sheath tube is () sleeved over the inner tubular core (). Here, the proximal end of each component refers to the end thereof closer to the handle (), while the distal end thereof is the end farther away from the handle (). As the sheath tube () is fixedly connected, at the distal end thereof, to the guide tip (), the implant () is loaded at the proximal end of the sheath tube () in the delivery device (′). During deployment of the implant (), the sheath tube () is caused to move toward distal end, that is, the sheath tube () continues moving toward a target site for the implant (), rather than moves backward to the handle (). This can effectively avoid the problems that may arise from retraction of the sheath tube () through a three-dimensionally curved path, such as unstable or even faulty deployment of the implant (), thus allowing deployment of the implant () with enhanced quality.

Delivery device

A prosthetic valve delivery catheter and device. The delivery catheter includes an outer sheath assembly and an inner sheath assembly. The outer sheath assembly includes a capsule in which a prosthetic valve can be received and an outer sheath fixedly connected at one end to the capsule. The inner sheath assembly includes an inner sheath and an anchor fixedly connected to the inner sheath. The inner sheath assembly is arranged within a lumen of the outer sheath assembly, and the capsule and the anchor form a circumferentially indexed fit therebetween. With this design, the anchor and the capsule can be driven to rotate under the action of circumferential rotation of the inner sheath, thus the matching between the prosthetic valve and a native valve annulus can be adjusted. Moreover, the capsule can be driven to move axially under actuation of the outer sheath to allow release of the prosthetic valve.

Delivery catheter and delivery device for artificial valve

The present disclosure discloses a thread transmission structure, and an optical system and a spotlight using the transmission structure. The thread transmission structure includes a sliding element and a rotation adjustment ring sleeved on an outer ring of the sliding element, the rotation adjustment ring being sleeved on an outer side of the sliding element and coupled to the sliding element, the rotation adjustment ring includes an internal thread, the sliding element includes an external thread, the sliding element includes a plurality of thread segments spaced along a circumferential direction, the plurality of thread segments forming at least one round of interrupted external thread, a thread form of the internal thread and the external thread being trapezoidal or rectangular, and the rotation adjustment ring being rotatable relative to the sliding element to push the sliding element to slide in an axial direction.

Thread transmission structure, optical system and spotlight using the thread transmission structure

Growing community of inventors

Shanghai, China

Jie Mei