Guiding apparatus for loading implant into delivery system

Abstract

The present application relates to the technical field of medical instruments, and discloses a guiding apparatus for loading an implant into a delivery system. The apparatus comprises a body (1). The body (1) is a conical body. The body (1) is provided with a first cavity (21) penetrating through the body in the central axis direction. A channel (11) is arranged at the end of the body (1) that has a smaller opening, and a side edge (12) extending outwards in an arc-shaped manner is arranged at the other end of the body that has a larger opening. Fixing apparatuses (3) are arranged on the side edge (12). The fixing apparatuses (3) are located on the outer side of the body (1).

Description

The guide that loads the implant into the delivery system Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a guiding device for loading an implant into a delivery system. Background Art

[0002] Heart failure (HF) is a very serious clinical syndrome. It is a clinical syndrome caused by myocardial damage, which leads to changes in myocardial structure and function, and ultimately leads to poor ventricular pumping and (or) filling function. HF is a "malignant tumor" among cardiovascular diseases. Existing treatments may only help patients prolong their lives, but cannot achieve a cure.

[0003] Valvular heart disease is also one of the most common heart diseases in my country, the main type of which is valve damage caused by rheumatic fever. In recent years, with the development of an aging population, valve degeneration (including calcification and myxoid degeneration, etc.) and metabolic valve damage have also increased in my country.

[0004] Minimally invasive interventional treatments offer advantages such as the lack of thoracotomy, minimal trauma, and rapid patient recovery. Over the past decade, interventional therapy has demonstrated that interventional procedures can address cases that can be treated by both internal and external medicine, as well as cases that cannot be treated by surgery. In the new century, research into interventional treatments for valvular disease has significantly accelerated, with percutaneous valve implantation progressing from experimental research to small-scale clinical parallel research. Valvular disease interventions may overcome technical bottlenecks and rapidly achieve widespread clinical application, once again becoming a focus of attention in the field of interventional cardiology.

[0005] However, in the related technologies, there is a need to press the interventional valve stent into the vertebral body, which requires reducing the size of some stents and causes complicated operation steps. Currently, no effective solution has been proposed.

[0006] Utility Model Content

[0007] The main purpose of the present application is to provide a guiding device for loading an implant into a delivery system, so as to solve the problem in the related art that the interventional valve stent needs to be pressed into the vertebral body, which requires reducing the size of part of the stent and has complicated operation steps.

[0008] In order to achieve the above-mentioned purpose, the present application provides a guide device for loading an implant into a conveying system, comprising: a main body, the main body being a conical body, the main body being provided with a first cavity running through its central axis direction, the end of the main body with a smaller opening being provided with a pipe, the other end with a larger opening being provided with a side extending outward in an arc, the side being provided with a fixing device, and the fixing device being located on the outside of the main body.

[0009] Furthermore, the fixing device includes a plurality of slide grooves, and the plurality of slide grooves are located at the side positions, and snap holes are provided on the inner sides of the slide grooves.

[0010] Furthermore, the pipeline is provided with a second cavity, and the first cavity and the second cavity are communicated with each other.

[0011] Furthermore, the volume of the first cavity is greater than the volume of the second cavity.

[0012] Furthermore, the inner wall of the second cavity is provided with a frosted layer.

[0013] Furthermore, a hollow tube is provided at one end close to the second cavity, a guide head is provided in the hollow tube, and a valve stent is wrapped on the surface of the guide head.

[0014] Furthermore, the hollow tube is covered with a guide.

[0015] Furthermore, the seeker is made of polymer material.

[0016] This solves the technical problem in related technologies that the interventional valve stent needs to be pressed into the vertebral body, which requires reducing the size of some stents and has complicated operation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0018] FIG1 is a schematic diagram of the overall structure of a guide device for loading an implant into a delivery system according to an embodiment of the present application;

[0019] FIG2 is a partial structural schematic diagram of a guide device for loading an implant into a delivery system according to an embodiment of the present application.

[0020] Description of the drawings: 1. Main body; 11. Pipe; 12. Side; 21. First cavity; 22. Second cavity; 23. Frosted layer; 24. Hollow tube; 25. Guide head; 26. Valve bracket; 27. Introducer; 28. Fastener; 3. Fixing device; 31. Slide groove; 32. Fastener hole. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0024] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0025] Additionally, the term "plurality" shall mean two or more.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] A guide device for loading an implant into a delivery system, as shown in FIG1 , comprises a body 1, the body 1 being a conical body, a first cavity 21 being set in the direction of the central axis of the body 1, a valve stent 26 passing through the first cavity 21, a pipe 11 being set at the end with a smaller opening of the body 1, and a side 12 extending outward in an arc being set at the end with a larger opening, the pipe (11) being provided with a second cavity 22; the valve stent 26 passes through the second cavity 22 of the pipe 11, enters the first cavity 21 from the end with a smaller opening, and directly reaches the end with a larger opening for use, a fixing device 3 being set on the side 12, the fixing device 3 being located outside the body 1, and being used in conjunction with an introducer, the introducer and the guide device being fixed by the fixing device 3, thereby solving the problem in the prior art that the valve stent 26 is pressed into the vertebral body, the stent size needs to be manually reduced, and the operation steps are complicated.

[0028] As shown in FIG2 , the fixing device 3 includes a plurality of slide grooves 31 located on the side 12, with snap holes 32 provided inside the slide grooves 31. A guide 27 is sleeved on the hollow tube 24, and a snap member 28 on the guide 27 is engaged with the snap holes 32 for fixation. Before and during surgery, the guide 27 can be quickly connected together with simple operation, thereby improving work efficiency.

[0029] As shown in FIG2 , the first cavity 21 and the second cavity 22 are connected, and the valve stent 26 enters the first cavity 21 through the second cavity 22, and the valve stent 26 is orderly expanded in the first cavity 21. Conversely, the valve stent 26 can also enter the first and second cavities 22 from the first cavity 21 to be stored.

[0030] As shown in FIG2 , a frosted layer 23 is provided on the inner wall of the second cavity 22 . During the operation, the valve stent 26 needs to be precisely controlled to reduce misoperation of the valve stent 26 .

[0031] As shown in Figure 2, a hollow tube 24 is provided at one end near the second cavity 22. A guide head 25 is provided within the hollow tube 24. A valve stent 26 is wrapped around the guide head 25. The guide head 25 is made of a polymer material and serves as a guide. The hollow tube 24 is sleeved on the pipe 11, and the guide head 25 is located within the hollow tube. During movement, the guide head 25, carrying the valve stent 26 wrapped on its surface, first passes through the second cavity 22 into the first cavity 21. Since the first cavity 21 is conical, the stent is deployed along the conical inner wall of the first cavity 21, and the guide 27 as a whole approaches the body 1. The snap member 28 is snapped into the snap hole 32 for fixation.

[0032] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A guide device for loading an implant into a delivery system, characterized in that include: The body (1) is a conical body, and is provided with a first cavity (21) extending through the central axis thereof. The end of the body (1) with a smaller opening is provided with a pipe (11), and the end with a larger opening is provided with a side edge (12) extending outward in an arc. The side edge (12) is provided with a fixing device (3), and the fixing device (3) is located outside the body (1).

2. A guide device for loading an implant into a delivery system according to claim 1, characterized in that: The fixing device (3) comprises a plurality of slide grooves (31), wherein the plurality of slide grooves (31) are located at the side edge (12), and snap holes (32) are provided on the inner sides of the slide grooves (31).

3. A guide device for loading an implant into a delivery system according to claim 2, characterized in that: The pipe (11) is provided with a second cavity (22), and the first cavity (21) and the second cavity (22) are connected.

4. A guide device for loading an implant into a delivery system according to claim 3, characterized in that: The volume of the first cavity (21) is greater than the volume of the second cavity (22).

5. A guide device for loading an implant into a delivery system according to claim 4, characterized in that: The inner wall of the second cavity (22) is provided with a frosted layer (23).

6. A guide device for loading an implant into a delivery system according to claim 5, characterized in that: A hollow tube (24) is provided at one end close to the second cavity (22), a guide head (25) is provided in the hollow tube (24), and a valve support (26) is wrapped on the surface of the guide head (25).

7. A guide device for loading an implant into a delivery system according to claim 6, characterized in that: The hollow tube (24) is sleeved with a guide (27), and the guide (27) is provided with a buckle piece (28) used in conjunction with the buckle hole (32).

8. A guide device for loading an implant into a delivery system according to claim 6, characterized in that: The guide head (25) is made of polymer material.

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