CN-121987388-A - Valve conveying device and valve conveying system

CN121987388ACN 121987388 ACN121987388 ACN 121987388ACN-121987388-A

Abstract

The application discloses a valve conveying device and a valve conveying system. The valve conveying device comprises a loading part, a core tube, an operating handle, a handle shell and a first operating piece, wherein the loading part comprises a tip end head and a loading rod connected to the tip end head, a fixing part is arranged on the loading rod, the fixing part is spaced from the tip end head and jointly defines a loading area for loading a valve support, a movable locking piece is arranged at the tail end of the loading rod, the core tube is sleeved outside the loading rod, an accommodating tube is arranged at one end of the core tube, facing the tip end head, and is used for accommodating the fixing part, the operating handle comprises the handle shell and the first operating piece, the first operating piece is rotatably sleeved on the handle shell and is in transmission connection with the core tube, and when the locking piece is in a first posture, the locking piece is connected with the first operating piece to lock the first operating piece. Through the mode, the valve conveying device provided by the application can effectively prevent the valve stent from being released in advance due to the fact that the valve stent is touched by an operator by mistake in the release process, and the operation safety is obviously improved.

Inventors

LI ZHIWEI
ZHANG XIAOWU
DONG WEN

Assignees

唯柯启源(无锡)医疗科技有限公司
武汉唯柯医疗科技有限公司

Dates

Publication Date: 20260508
Application Date: 20251231

Claims (10)

1. A valve delivery device, the valve delivery device comprising: The loading part comprises a tip end and a loading rod connected to the tip end, a fixing part is arranged on the loading rod, the fixing part and the tip end are spaced and jointly define a loading area for loading the valve bracket, and a movable locking part is arranged at the tail end of the loading rod; The core tube is sleeved outside the loading rod, one end of the core tube, facing the tip end, is provided with a containing tube, and the containing tube is used for containing the fixing part and is matched with the fixing part so as to lock one end of the valve support between the fixing part and the containing tube; the operating handle comprises a handle shell and a first operating piece, wherein the first operating piece is rotatably sleeved on the handle shell and is in transmission connection with the core tube, so that the core tube is driven to move relative to the loading rod by rotating the first operating piece, and the opening and closing between the accommodating tube and the fixing part are controlled, so that the valve bracket is released or locked; The locking piece is connected with the first operating piece to lock the first operating piece when in a first posture, and is disconnected with the first operating piece when in a second posture, so that the first operating piece is allowed to adjust the core tube.
2. The valve delivery device of claim 1, wherein the locking member comprises a fixed seat and a locking tongue movably disposed on the fixed seat, the fixed seat is fixedly connected with the tail end of the loading rod, and the locking tongue is movable relative to the fixed seat and can be clamped in or separated from a locking position and an unlocking position of the first operating member; When the lock tongue is in a first posture, the lock tongue is arranged at a locking position of the first operating piece, and when the lock tongue is in a second posture, the lock tongue is arranged at an unlocking position of the first operating piece, so that the first operating piece is allowed to adjust the core tube.
3. The valve delivery device of claim 2, wherein the locking tongue comprises a guide rod and a locking tongue portion connected to the guide rod, the guide rod being disposed through the fixed seat, the locking tongue portion being configured to mate with a locking groove on the first operating member; the first operating member is limited to rotate when the locking tongue portion is clamped into the locking groove, and the first operating member is allowed to rotate when the locking tongue portion is separated from the locking groove.
4. The valve delivery device of claim 3, wherein the locking member further comprises an elastic member sleeved outside the guide rod, the elastic member being elastically compressed between the fixing base and the retaining ring of the guide rod to provide a pre-tightening force to the locking tongue.
5. The valve delivery device of claim 1, further comprising an inner sheath tube surrounding the core tube; The operating handle further comprises a second operating piece which is rotatably arranged on the handle shell, and the second operating piece is in transmission connection with the inner sheath tube so as to drive the inner sheath tube to move relative to the core tube by rotating the second operating piece.
6. The valve delivery device of claim 5, further comprising a traction member coupled to the inner sheath; The operating handle further comprises a third operating piece which is rotatably arranged on the handle shell and is in transmission connection with the traction piece, and the traction piece is driven by rotating the third operating piece so as to adjust the bending degree of the inner sheath tube.
7. The valve delivery device of claim 5, further comprising an outer sheath adjustment handle and an outer sheath that is sleeved outside the inner sheath, the outer sheath adjustment handle being configured to adjust the outer sheath so that the outer sheath can move along the loading rod to abut the tip head and cover the loading zone or to disengage from the loading zone to progressively release the valve stent within the loading zone.
8. The valve delivery device of claim 1, wherein the fixed portion comprises a cylinder and a plurality of limiting protrusions arranged on the periphery of the cylinder, the plurality of limiting protrusions being distributed at intervals along the circumferential direction of the cylinder, the limiting protrusions being used for hooking a connecting piece on a valve support; when the fixing part is positioned in the accommodating tube, the connecting piece of the valve bracket can be limited to be separated from the limiting protrusion.
9. The valve delivery device of claim 1, wherein the tip head is provided with a fluid injection passage, and the loading rod is a hollow tube and communicates with the fluid injection passage such that cleaning fluid can flow through the loading rod and the fluid injection passage to a target location.
10. A valve delivery system comprising a valve stent and a valve delivery device according to any one of claims 1 to 9 for loading and delivering the valve stent.

Description

Valve conveying device and valve conveying system Technical Field The application relates to the technical field of valve conveying devices, in particular to a valve conveying device and a valve conveying system. Background Valve delivery devices are one of the key instruments for interventional treatment of heart valve diseases, and the performance of the valve delivery devices directly affects the loading, delivery and release accuracy of valve stents, so that the safety and success rate of the operation are related. The valve conveying device in the prior art still has a plurality of defects in clinical application, namely, on one hand, part of the device lacks an effective locking mechanism for an operation piece, valve brackets are easily released in advance in the conveying process due to misoperation of the operation piece, so that serious operation risks are caused, on the other hand, the valve brackets are unreasonably designed in locking structure in a loading area, the problem that fixation is unstable or release resistance is overlarge often occurs, position deviation or tissue damage is caused during release, and in addition, the release/locking control precision of the part of the device is insufficient, the accurate positioning and stable release of the valve brackets are difficult to realize, and the treatment effect is influenced. These problems limit the clinical experience of valve delivery devices and there is a need for a valve delivery device that is more stable in construction, safer to operate, and more accurate to control to address the pain. Disclosure of Invention The application mainly provides a valve conveying device and a valve conveying system, which are used for solving the problems that the operation of the existing valve conveying device is unstable and the release is easy to be out of control in the process of releasing a valve bracket. In order to solve the technical problems, the application adopts a technical scheme that a valve conveying device is provided. The valve conveying device comprises a loading element, a core tube, an accommodating tube and an operating handle, wherein the loading element comprises a sharp end head and a loading rod connected to the sharp end head, a fixing part is arranged on the loading rod, the fixing part is spaced from the sharp end head and is jointly used for limiting a loading area for loading a valve support, a movable locking element is arranged at the tail end of the loading rod, the core tube is sleeved outside the loading rod, an accommodating tube is arranged at one end of the core tube, which faces the sharp end head, is used for accommodating the fixing part and is matched with the fixing part so as to lock one end of the valve support between the fixing part and the accommodating tube, the operating handle comprises a handle shell and a first operating element, the first operating element is rotatably sleeved on the handle shell and is in transmission connection with the core tube, the core tube is driven to move relative to the loading rod, accordingly opening and closing between the accommodating tube and the fixing part are controlled, release or locking of the valve support is achieved, when the locking element is in a first posture, the locking element is connected with the first operating element, and when the first operating element is in a first posture, the first operating element is connected with the first operating element, and the first operating element is allowed to be in a first posture. In some embodiments, the locking piece comprises a fixed seat and a lock tongue movably arranged on the fixed seat, the fixed seat is fixedly connected with the tail end of the loading rod, and the lock tongue can move relative to the fixed seat and can be clamped in or separated from a locking position and an unlocking position of the first operating piece; When the lock tongue is in a first posture, the lock tongue is arranged at a locking position of the first operating piece, and when the lock tongue is in a second posture, the lock tongue is arranged at an unlocking position of the first operating piece, so that the first operating piece is allowed to adjust the core tube. In some embodiments, the lock tongue comprises a guide rod and a lock tongue part connected with the guide rod, the guide rod is arranged on the fixed seat in a penetrating way, and the lock tongue part is used for being matched with a locking groove on the first operating piece; the first operating member is limited to rotate when the locking tongue portion is clamped into the locking groove, and the first operating member is allowed to rotate when the locking tongue portion is separated from the locking groove. In some embodiments, the locking member further includes an elastic member sleeved outside the guide rod, where the elastic member is elastically compressed between the fixing seat and the stop ring of the guide rod, so as to provide a pretigh