Shanghai Microport Cardioflow Medtech Co., Ltd.

Baozhu Gui

Yu Meng Li

Ming Liu

Guoming Chen

Xiang Liu

Zhixiu He

Mingming Wu

Haishan Wang

Xuwen Wu

Jie Mei

Qiyi Luo

Yu Li

Jing Zhao

Shaohui Chen

Yunlei Wang

Shihong Liu

Longfei Li

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

An implant delivery tube fitting () and an implant delivery system. The implant delivery tube fitting () is used for loading and delivering an implant, and the implant delivery tube fitting () comprises, sequentially from a proximal end to a distal end, an outer tube () and a capsule (). The inner lumen of the capsule () is adapted to receive an implant, and the capsule () is provided at the distal end of the outer tube (). The capsule () has a telescopic structure, and the outer tube () can drive the capsule () to make a telescopic movement so that the capsule () is lengthened or shortened.

Implant delivery tube fitting and implant delivery system

A guide cap and a loading system for loading an implant into a delivery system are disclosed which are capable of simplifying operations required in interventional surgery using the implant. The guide cap has a lumen passing therethrough and includes: a conical section; a straight or conical tube in communication with a small open end of the conical section; and a flange, wherein a large open end of the conical section flares outward and thereby forms the flange. The loading system includes a guider and the guide cap. During the process of loading the implant into the delivery system, the guide cap enables the valve prosthesis to be coupled to the connector of the delivery system and allows the valve prosthesis to be compressed so as to be entirely capsuled in the delivery system with relatively easy and quick operations, thereby reducing surgery time during its clinical use.

Guide cap and loading system for loading implant into delivery system

An implant delivery device () includes a casing (); and inner and outer tube driving members (), an inner tube (), an intermediate tube (), an outer tube () and an air-evacuation locking assembly (), each at least partially accommodated in the casing (). The three tubes are sequentially nested in one another, and first, second and third spaces are formed between neighbouring tubes. The inner tube driving member () has a proximal end that is sealingly fixed to a proximal end of the inner tube (), and the outer tube driving member () is sealingly fixed to a proximal end of the outer tube (). The intermediate tube () has a proximal end that is sealingly fixed to the inner tube driving member (), and the intermediate tube extends through and is sealingly connected to the outer tube driving member (). The air-evacuation locking assembly () is detachably coupled to the inner tube driving member (). The inner tube driving member () and the air-evacuation locking assembly () are provided with first and second air-evacuation channels (A, B), respectively. When the air-evacuation locking assembly () is coupled to the inner tube driving member (), the second air-evacuation channel (B) is brought into communication with the second and third spaces via the first air-evacuation channel (A) and the first space. The inner tube driving member () is coupled to the casing () by the air-evacuation locking assembly (). When the air-evacuation locking assembly () is disconnected from the inner tube driving member (), the inner tube driving member () remains in slidable connection with the casing ().

Implant delivery apparatus

A drive handle and system for delivering an implant are disclosed. The drive handle includes a manual control unit, an electrical control unit and a transmission mechanism. The manual control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive a delivery catheter for delivering the implant. The electrical control unit is connected to the transmission mechanism to actuate the transmission mechanism to drive the delivery catheter. The drive handle is switchable between a manual drive/control mode and an electrical drive/control mode to drive the delivery catheter to deliver the implant. The operation is simple, and the operating physician can take full advantage of the two modes to perform the surgical procedure based on his/her own operational preferences. This can result in higher surgical accuracy. Further, by providing these two modes, the apparatus has an increased the security and a reduced surgical risk.

Driving handle for delivering implant, and delivery system

An implant capsule () and an implant delivery system are disclosed. The implant capsule () includes, sequentially from a proximal end to a distal end, a flexural section (-), a reinforcement section (-) and a radiopaque reinforcement ring (-). The reinforcement section (-) has higher strength than the flexural section (-). The implant delivery system includes the implant capsule (). The implant capsule () can ensure the implant to be deployed in a coaxial condition and prevent over-expansion due to large expansion forces exerted by a stent of the implant.

Implant capsule and implant delivery system

A device and method for loading an implant into a delivery system are disclose which are capable of simplifying operations required in interventional surgery using the implant. The device includes a guide cap (), a guider () and a guiding tube (). The guide cap () has a conical section () and a straight or conical tube () in communication with a small open end () of the conical section, and the conical section has a large open end () that flares outward, thereby forming a flange () facing the tube (). The guider () has tapered sections () that are tapered along an axis of the guider and thus form large and small open ends (). The small open end () has a diameter greater than a diameter of the small open end () of the conical section of the guide cap (). The guide cap () and the guider () are so sized that the flange () can cover and be locked to the guider (), with an end portion of the straight or conical tube () protruding from the small open end () of the guider (). The guiding tube () is a round tube with two open ends, in which the first open end has a diameter greater than the diameter of the small open end () of the conical section of the guide cap and smaller than the diameter of the small open end () of the guider.

Device and method for loading implant into delivery system

An electric handle for delivering an implant is disclosed. The electric handle () includes an electric control unit (), a power-driven transmission mechanism (), a handle housing (), an outer tube anchor () and an inner tube anchor (), wherein: the electric control unit () is operatively coupled to the power-driven transmission mechanism () to actuate the power-driven transmission mechanism (); the power-driven transmission mechanism () is supported within the handle housing () and moveable together with the outer tube anchor (); the inner tube anchor () is disposed within the handle housing () and is configured to hold an inner tube () of a delivery system; and the outer tube anchor () is configured to hold an outer tube () of the delivery system and is fixed to an end of the outer tube (). A delivery system used especially for delivery of prosthetic valves is also disclosed, including an outer tube (), an inner tube (), an expandable implant () and the electric handle ().

Growing community of inventors

Shanghai, China

Baozhu Gui