A valve delivery device and its delivery system

Abstract

The present invention provides a valve delivery device and its delivery system, comprising: a catheter part, the catheter part is provided with a first end for being delivered into the human body and a second end for providing operations, and includes an inner tube and an intermediate tube sleeved outside the inner tube; a housing part, the housing part is provided with a first housing, an outer tube and a second housing, the first end of the outer tube is fixedly communicated with the first housing, and the second end of the outer tube is fixedly communicated with the second housing; an anchoring member, the anchoring member is fixed at the first end of the intermediate tube and fixedly carries a stent for an artificial heart valve; a first control structure arranged at the second end of the catheter part and used for controlling the relative sliding of the intermediate tube and the outer tube; the housing part is sleeved on the catheter part. The present invention is used to deliver an artificial heart valve to the position of the native valve and replace the diseased valve, and can perform circumferential control, thereby improving the delivery effect.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a valve delivery device and its delivery system. Background Art

[0002] Heart valve disease is a common heart disease, among which valve damage caused by rheumatic fever is the most common. With the aggravation of population aging, senile valve disease and valve lesions caused by coronary heart disease and myocardial infarction are also becoming more and more common.

[0003] In the prior art, a valve delivery device is generally used for artificial heart valve surgery, and an artificial heart valve is implanted into a patient's body to achieve a therapeutic effect. When using the existing valve delivery device for surgery, there is circumferential uncontrollability of the valve delivery device, so that the setting position of the artificial heart valve does not match the target position, and thus the delivery effect of the existing valve delivery device is poor. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a valve delivery device and its delivery system to solve the problem of poor delivery effect when the valve delivery device delivers an artificial heart valve.

[0005] According to one aspect of the present invention, an embodiment of the present invention provides a valve delivery device, which is characterized in that it includes: a catheter part, the catheter part is provided with a first end for being delivered into the human body and a second end for providing operation, and the catheter part includes an inner tube and an intermediate tube sleeved outside the inner tube; a housing part, the housing part is provided with a first housing, an outer tube and a second housing, the first end of the outer tube is fixedly communicated with the first housing, and the second end of the outer tube is fixedly communicated with the second housing; an anchoring member, the anchoring member is fixed at the first end of the intermediate tube, and a stent carrying the artificial heart valve is fixed to the anchoring member; a first control structure arranged at the second end of the catheter part and used for controlling the relative sliding of the intermediate tube and the outer tube; the first end of the catheter part enters from the second end of the housing part and passes through the housing part, and the first end of the catheter part passes out from the first end of the housing part, and the intermediate tube slides relative to the outer tube.

[0006] According to another aspect of the present invention, a valve delivery system is provided, which is characterized in that it includes the valve delivery device provided by the embodiments of the present application and an artificial heart valve.

[0007] According to the technical solution of the present invention, the valve delivery device includes: a catheter portion provided with a first end for delivery into the human body and a second end for providing operations, the catheter portion including an inner tube and an intermediate tube sleeved outside the inner tube; a housing portion provided with a first housing, an outer tube, and a second housing, the first end of the outer tube being fixedly communicated with the first housing, and the second end of the outer tube being fixedly communicated with the second housing; an anchor fixed at the first end of the intermediate tube, and a stent carrying the artificial heart valve being fixed to the anchor; a first control structure provided at the second end of the catheter portion and used to control the relative sliding of the intermediate tube and the outer tube; the first end of the catheter portion enters from the second end of the housing portion and passes through the housing portion, and the first end of the catheter portion exits from the first end of the housing portion, and the intermediate tube slides relative to the outer tube.

[0008] In the valve delivery device in a normal state, the anchor is within the inner cavity of the first housing in the housing portion, and is stuck near one end of the first control structure, and the stent carrying the artificial heart valve fixedly connected to the anchor is received within the first housing in the housing portion; when the valve delivery device reaches the site where valve replacement is required, the outer tube in the housing portion is moved through the first control structure, wherein the moving direction is away from the second housing in the housing portion, the movement of the outer tube in the housing portion drives the movement of the first housing, the anchor and the stent carrying the artificial valve fixed thereto are exposed from the above-mentioned first housing, the stent resumes its normal size in the human body, and the user continues to control the stent through the first control structure to complete the circumferential rotation and positioning adjustment of the valve, and after determining the position, the valve is implanted. By this means, the delivery effect of the valve delivery device is improved.

[0009] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are used to better understand the present solution and do not constitute a limitation to the present disclosure. Among them:

[0011] Figure 1 is a structural diagram of the valve delivery device provided by the present disclosure;

[0012] Figure 2 is another structural diagram of the valve delivery device provided by the present disclosure;

[0013] Figure 3 is another structural diagram of the valve delivery device provided by the present disclosure;

[0014] Figure 4 It is another structural diagram of the valve delivery device provided by the present disclosure;

[0015] Figure 5 It is another structural diagram of the valve delivery device provided by the present disclosure;

[0016] Figure 6 It is another structural diagram of the valve delivery device provided by the present disclosure;

[0017] Figure 7 It is another structural diagram of the valve delivery device provided by the present disclosure;

[0018] Figure 8 It is a structural diagram of the artificial heart valve stent carried in the valve delivery device provided by the present disclosure;

[0019] Figure 9 It is another structural diagram of the valve delivery device provided by the present disclosure;

[0020] Figure 10 It is a flow chart of the valve delivery device provided by the present disclosure entering the human body;

[0021] Figure 11 It is another flow chart of the valve delivery device provided by the present disclosure entering the human body;

[0022] Figure 12 It is another flow chart of the valve delivery device provided by the present disclosure entering the human body;

[0023] Figure 13 It is a structural diagram of the stent during the implantation of the artificial heart valve in the valve delivery device provided by the present disclosure. Detailed implementation manners

[0024] The following makes an explanation of the exemplary embodiments of the present application in conjunction with the accompanying drawings. Various details of the embodiments of the present application are included to assist understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted below.

[0025] Please refer to Figure 1 , Figure 1 which is a structural diagram of a valve delivery device provided by the present disclosure, as shown in Figure 1As shown in the figure, the valve delivery device includes: a catheter portion 11, the catheter portion 11 having a first end for delivery into the human body and a second end for providing operation, the catheter portion 11 including an inner tube and an intermediate tube sleeved outside the inner tube; a housing portion 12, the housing portion 12 having a first housing, an outer tube, and a second housing, a first end of the outer tube being fixedly communicated with the first housing, and a second end of the outer tube being fixedly communicated with the second housing; an anchor 13, the anchor 13 being fixed at a first end of the intermediate tube, and a stent carrying the artificial heart valve being fixed to the anchor 13; a first control structure 14 provided at the second end of the catheter portion 11 and for controlling the relative sliding of the intermediate tube and the outer tube; the first end of the catheter portion 11 entering from the second end of the housing portion 12 and passing through the housing portion 12, the first end of the catheter portion 11 passing out from the first end of the housing portion 12, and the intermediate tube sliding relative to the outer tube.

[0026] Among them, the lengths of the catheter portion 11 and the housing portion 12 can be set according to medical needs, that is, the lengths of the inner tube and the intermediate tube in the catheter portion 11 and the lengths of the outer tube and the second housing in the housing portion 12 are not limited in the embodiments of the present invention.

[0027] In addition, the diameters of the inner tube, the intermediate tube, and the outer tube match each other, that is, the diameter of the outer tube is large enough for the intermediate tube to pass through without affecting the normal operation of the outer tube and the intermediate tube in the working state, and the diameter of the intermediate tube is large enough for the inner tube to pass through without affecting the normal operation of the intermediate tube and the inner tube in the working state.

[0028] Among them, the connection manner between the anchor 13 and the intermediate tube can be by laser welding.

[0029] In this embodiment, the above-mentioned valve delivery device is composed of the above-mentioned catheter portion 11, the above-mentioned housing portion 12, the above-mentioned anchor 13, and the above-mentioned first control structure 14. Among them, the above-mentioned housing portion 12 is sleeved outside the above-mentioned catheter portion 11, the above-mentioned anchor 13 is fixed to one end of the intermediate tube in the above-mentioned catheter portion 11, and the above-mentioned anchor 13 is used for fixedly connecting the stent for carrying the above-mentioned artificial heart valve. In addition, the above-mentioned first control structure 14 is fixedly arranged at one end of the above-mentioned catheter portion 11, and the above-mentioned first control structure 14 is used to control the movement of the outer tube in the above-mentioned catheter portion 11. In addition, the above-mentioned housing portion 12 is connected to the above-mentioned first control structure 14. Through the operation of the above-mentioned first control structure 14, the movement of the outer tube in the above-mentioned housing portion 12 is controlled, which can drive the relative sliding of the above-mentioned intermediate tube and the above-mentioned outer tube, so as to complete the release of the artificial heart valve, and then the circumferential position of the artificial heart valve is controlled by the above-mentioned first control structure 14. The setting of this structure improves the delivery effect of the above-mentioned valve delivery device.

[0030] Among them, in the above-mentioned valve delivery device in the normal state, the above-mentioned anchor 13 is in the inner cavity of the above-mentioned first housing in the above-mentioned housing portion 12, and is stuck near one end close to the above-mentioned first control structure 14. The stent carrying the above-mentioned artificial heart valve fixedly connected to the above-mentioned anchor 13 is stored in the above-mentioned first housing in the above-mentioned housing portion 12; when the above-mentioned valve delivery device reaches the part where valve replacement is required, the above-mentioned outer tube in the above-mentioned catheter portion 11 is moved through the above-mentioned first control structure 14. Among them, the moving direction is away from the second housing in the above-mentioned housing portion 12. The movement of the outer tube in the above-mentioned catheter portion 11 drives the movement of the above-mentioned first housing, and the above-mentioned anchor 13 and the stent carrying the artificial valve fixed thereto are exposed from the above-mentioned first housing. The stent resumes its normal size in the human body, and the user continues to control the stent through the above-mentioned first control structure 14. In this way, the circumferential rotation and positioning adjustment of the valve are realized, and after the position is determined, the implantation of the valve is completed.

[0031] In addition, the above-mentioned stent carrying the artificial heart valve can be made of a radiopaque material, and the user can observe the position of the above-mentioned stent and its artificial heart valve through rays. For example: when the above-mentioned anchor 13 in the above-mentioned valve delivery device is close to the junction of the native leaflets, the above-mentioned first control structure 14 can be operated to expose the stent carrying the artificial heart valve from the above-mentioned first housing and perform the implantation of the valve.

[0032] In addition, a tip structure is provided at the first end of the above-mentioned inner tube in the above-mentioned valve delivery device, that is, the end that first enters the human body during use. The setting of this structure improves the delivery effect of the above-mentioned valve delivery device in the human body.

[0033] It should be noted that the stent carrying the artificial heart valve in the above-mentioned valve delivery device can be made of nitinol. After the artificial heart valve is exposed from the above-mentioned first outer shell, the stent supported by nitinol expands actively at body temperature and returns to the preset size, such as Figure 2 shown, where the outer shell part 12 and the anchor 13 are arranged as shown.

[0034] In addition, the above-mentioned catheter part 11, the anchor 13 and the above-mentioned first control structure 14 are as Figure 3 shown. The above-mentioned catheter part 11 includes an inner tube 111 and an intermediate tube 112. The above-mentioned inner tube 111 extends through the entire above-mentioned valve delivery device and is fixed to the bottom of the above-mentioned first control structure 14.

[0035] In addition, the above-mentioned outer shell part is as Figure 4 shown. The above-mentioned outer shell part 12 includes a first outer shell 121, an outer tube 122 and a second outer shell 123. Among them, the above-mentioned first outer shell 121 is fixedly communicated with the above-mentioned outer tube 122, and the above-mentioned second outer shell 123 is fixedly communicated with the above-mentioned outer tube 122.

[0036] As an alternative embodiment, as Figure 5 shown, the second outer shell 123 includes: an outer handle 1231, an outer cover 1232, an outer tube fixing member 1233 and a handle insert 1234. Among them, the outer handle 1231 is sleeved on the outer tube fixing member 1233, and a through hole is provided at one end of the outer handle 1231 away from the outer tube fixing member 1233; the outer tube fixing member 53 is provided with a first inner cavity; the handle insert 1234 is fixed to the outer appearance fixing member 1233, and the handle insert 1234 is provided with a second inner cavity; the outer cover 1232 is fixedly connected to the outer handle 1231 and is provided with a first opening; the outer tube passes through the first opening and is communicated with the first inner cavity and the second inner cavity.

[0037] In this embodiment, the above-mentioned outer handle 1231 is a shell structure and is sleeved on the above-mentioned outer tube fixing member 1233. Among them, the above-mentioned outer tube fixing member 1233 is used to fix the above-mentioned outer tube, and the above-mentioned outer tube fixing member 1233 is bonded to the above-mentioned outer tube with medical glue. The outer tube fixing member 1233 is assembled with the handle insert 1234 by threads, and the outer cover 1232 is assembled with the outer handle 1231 by threads or bonded with medical glue. After the overall assembly is completed, the outer tube fixing member 1233 is closely attached and fixed to the inside of the above-mentioned second outer shell 123. Among them, the above-mentioned outer tube can pass through the above-mentioned outer cover 1232, the above-mentioned outer tube fixing member 1233 and the above-mentioned handle insert 1234 in sequence. The setting of this structure improves the connection stability between the above-mentioned second outer shell 123 and the above-mentioned outer tube, and further improves the delivery effect of the above-mentioned valve delivery device.

[0038] In addition, the second outer shell 123 and the outer tube described above can be an integral structure, that is, the second outer shell 123 and the outer tube can be regarded as an integral stepped tube, or the second outer shell 123 and the outer tube can be fixedly connected by butt welding.

[0039] It should be noted that the outer handle 1231 described above can be tubular, and the outer handle 1231 can be made of materials suitable for medical use. For example, the outer handle 1231 can be made of polymer materials or thin-walled metal materials, etc. In addition, the outer cover 1232, the outer tube fixing member 1233 and the handle insert 1234 can be made of polymer materials suitable for medical use, and the embodiments of the present invention are not limited thereto.

[0040] As an alternative embodiment, as Figure 6 shown, the first control structure 14 includes: a connecting member 141, a fixing member 142 and a rotating handle 143. Among them, the connecting member 141 is threadedly connected to the second outer shell of the housing portion, and the connecting member 141 is provided with an inner cavity for the inner tube and the intermediate tube to pass through; the fixing member 142 fixedly connects the connecting member 141 and the rotating handle 143, and the fixing member 142 is provided with an inner cavity for the inner tube to pass through; the rotating handle 143 is provided with an inner cavity for the inner tube to pass through, and the inner tube is fixed to the bottom of the rotating handle 143.

[0041] Among them, when the above-mentioned valve delivery device reaches the native valve, the intermediate tube can be twisted by rotating the fixing member 142 and the rotating handle 143. The twisting of the intermediate tube drives the rotation of the above-mentioned anchoring member, and the above-mentioned anchoring member realizes the rotation of the artificial heart valve through the matching relationship with the above-mentioned stent.

[0042] In this embodiment, the surface of the connecting member 141 is provided with threads matching the second outer shell. The connecting member 14 can be threadedly connected to the second outer shell through the threads. The inner tube and the intermediate tube can pass through the connecting member 141 through the inner cavity provided by the connecting member 141. In addition, the fixing member 142 fixedly connects the connecting member 141 and the rotating handle 143, and the fixing member 142 is provided with an inner cavity. The inner tube and the intermediate tube pass through the fixing member 142 through the inner cavity of the fixing member 142. In addition, the rotating handle 143 is provided with an inner cavity, and the inner tube is fixed to the bottom of the rotating handle 143 through the inner cavity provided by the rotating handle 143. The setting of this structure improves the connection stability between the components of the first control structure 141, thereby improving the feasibility of the operation of the first control structure 141 for the valve delivery device, and further improving the delivery effect of the valve delivery device.

[0043] Among them, the way the fixing member 142 fixes the connecting member 141 and the rotating handle 143 can be to fix the connecting member 141 and the rotating handle 143 through hole-shaft assembly connection.

[0044] In addition, the connection between the middle tube and the fixing member 142 can be through bonding with medical glue. For example, the middle tube is bonded to the fixing member 142 by using medical glue. Among them, the outer wall of the middle tube is bonded to the outer wall of the fixing member 142.

[0045] In addition, the connection between the inner tube and the rotating handle 143 can be through bonding with medical glue. For example, the inner tube is bonded to the rotating handle 143 by using medical glue. Among them, the outer wall of the inner tube is bonded to the outer wall of the rotating handle 143.

[0046] It should be noted that the rotating handle 143 can be made of polycarbonate or polyoxymethylene material, and the connecting member 141 can be made of materials such as polycarbonate or polyoxymethylene.

[0047] As an alternative embodiment, the connecting member has an internal thread structure that cooperates with the external thread structure. Rotating the rotating handle causes the connecting member fixed to the rotating handle to move axially.

[0048] In this embodiment, a matching thread structure is provided inside the connecting member and the second housing. The user rotates the rotating handle, and the connecting member fixedly connected to the rotating handle moves axially. The rotating handle pulls the outer tube to move away from the end of the anchoring member, and the outer tube pulls the housing to move away from the end of the anchoring member, exposing the stent carrying the artificial heart valve out of the housing, thereby controlling the circumferential direction of the stent. The setting of this structure improves the convenience of use of the valve delivery device by the user, and also improves the feasibility of the operation of the valve delivery device, thereby improving the delivery effect of the valve delivery device.

[0049] As an alternative embodiment, as Figure 7 shown, the anchoring member is columnar, and the anchoring member is provided with three groove structures for fixing and loading the stent of the artificial heart valve; the bottom of the anchoring member is matched with the end of the first housing and the outer tube connected thereto.

[0050] In this embodiment, the anchoring member is provided with three grooves for the stent feet of the stent to be embedded and fixed. The three grooves are provided with three stent feet, and one of the stent feet is symmetrically separated in the middle, and the three-leaf stent formed places a three-leaf artificial heart valve. As Figure 8As shown, when the above-mentioned valve delivery device is in the delivery state, the stent loaded with the above-mentioned artificial heart valve is locked with the above-mentioned anchor. The protruding structure above the stent can be embedded in the groove of the anchor and always maintain the same axial and circumferential positions therewith. The setting of this structure improves the stability of the above-mentioned valve delivery device for fixing the artificial heart valve, and thus improves the delivery effect of the above-mentioned valve delivery device.

[0051] As an alternative embodiment, as Figure 9 shown, the valve delivery device further includes: an expansion member 91 for positioning the artificial heart valve, the first end of the expansion member 91 being fixed to the first end of the catheter portion; the second end of the expansion member being fixed to the outer surface of the anchor; the expansion member communicating with the region formed by the outer surface of the inner tube and the inner surface of the intermediate tube; the expansion member having an expanded state and a non-expanded state.

[0052] In this embodiment, the above-mentioned valve delivery system further includes the above-mentioned expansion member 91. The above-mentioned expansion member 91 is used for positioning the above-mentioned artificial heart valve. The above-mentioned expansion member 91 is a sealed capsule. Among them, the first end, i.e., the first port, of the above-mentioned expansion member 91 is hermetically fixed to the first end of the catheter portion, that is, the end that first enters the human blood vessel. The second end, i.e., the second port, of the above-mentioned expansion member 91 is hermetically fixed to the outer surface of the anchor. The region between the above-mentioned inner tube and the above-mentioned intermediate tube communicates with the inside of the above-mentioned expansion member 91, and the above-mentioned expansion member 91 has an expanded state and a non-expanded state. In addition, the stent carrying the artificial heart valve is wrapped around the above-mentioned expansion member 91. The setting of this structure increases the method for circumferential control of the artificial heart valve, and thus improves the delivery effect of the above-mentioned valve delivery device.

[0053] It should be noted that the valve provided with the expansion member 91 can be circumferentially adjusted after exposing the above-mentioned outer shell. When adjusted to the position where the artificial valve can be implanted, the expansion member 91 is pressurized and expanded. The pressurization and expansion of the above-mentioned expansion member 91 can open the stent carrying the artificial valve. In addition, when pressurizing the above-mentioned expansion member 91, high-pressure liquid can be injected from the region between the above-mentioned inner tube and the above-mentioned intermediate tube and finally left in the above-mentioned expansion member 91.

[0054] In addition, the material of the above-mentioned stent carrying the artificial valve provided with the above-mentioned expansion member 91 can be a non-shape memory alloy, and the above-mentioned stent is supported by the above-mentioned expansion member 91 to complete the subsequent positioning operation.

[0055] It should be noted that when the stent in the above valve delivery device is made of a shape memory alloy material, the stent exposed from the first outer shell can, due to the characteristics of the shape memory alloy, restore its original size at the body temperature and fully expand the stent. At this time, the above-mentioned expansion component 91 is not assembled in the above valve delivery device. When the above-mentioned expansion component 91 is assembled in the above valve delivery device, the stent in the above valve delivery device is made of a non-shape memory alloy, for example: the stent in the above valve delivery device is made of cobalt-chromium alloy. The stent in the above valve delivery device is expanded and positioned by the expansion component 91. That is, the above two methods are separate implementation schemes and do not interfere with each other.

[0056] As an alternative implementation manner, the expansion state includes a first expansion state and a second expansion state; in the first expansion state, the expansion component has a first expansion size; in the second expansion state, the expansion component has a second expansion size; in the non-expansion state, the expansion component has a third expansion size; the first expansion size is greater than the second expansion size, and the second expansion size is greater than or equal to the third expansion size.

[0057] In this implementation scheme, the above-mentioned expansion component has an expansion state and a non-expansion state. Among them, the above-mentioned expansion state includes a first expansion state and a second expansion state. The above-mentioned first expansion state has a first expansion size, the above-mentioned second expansion state has a second expansion size, and the above-mentioned non-expansion state has a third expansion size. Among them, the above-mentioned first expansion size is greater than the second expansion size, and the second expansion size is greater than or equal to the third expansion size. When the above valve delivery device reaches the position where the diseased valve needs to be replaced, the above stent is exposed by the operation of the above first control structure, and the above expansion component is pressurized for the first time. At this time, the above expansion component is in the second expansion state, where the second expansion state is a transition state from the non-expansion state to the first expansion state. Wait until the above stent is completely exposed and the position for implanting the artificial heart valve is further accurate, and then pressurize the above expansion component for the second time. At this time, the above expansion component is in the first expansion state, and the above stent carrying the artificial heart valve is fully expanded. When the above stent carrying the artificial heart valve is located in the above first outer shell, at this time, the above expansion component is in the non-expansion state and has a third expansion size. The setting in this scheme improves the delivery effect of the above valve delivery device.

[0058] As an alternative implementation manner, the expansion component is balloon-shaped, and the expansion component is controlled to switch between the first expansion state, the second expansion state, and the non-expansion state by inputting high-pressure liquid.

[0059] In this embodiment, the above-mentioned expansion component is balloon-shaped, and the switching between the above-mentioned first expansion state, the above-mentioned second expansion state and the above-mentioned non-expansion state is controlled by inputting high-pressure liquid. Among them, the high-pressure liquid is input from the above-mentioned inner tube and the above-mentioned intermediate tube, and the area between the above-mentioned inner tube and the above-mentioned intermediate tube communicates with the above-mentioned expansion component. When high-pressure liquid is filled into the above-mentioned inner tube and the above-mentioned intermediate tube, the high-pressure liquid can enter the above-mentioned expansion component along with the area inside the pipeline. The setting of this structure improves the delivery effect of the above-mentioned valve delivery device.

[0060] As an alternative embodiment, the housing part is made of polycarbonate and polyoxymethylene materials; the catheter part is made of polyether block polyamide, polycarbonate and polyoxymethylene materials.

[0061] In this embodiment, the above-mentioned housing part is made of materials suitable for medical use such as polycarbonate and polyoxymethylene, and the above-mentioned catheter part is made of materials suitable for medical use such as polyether block polyamide, polycarbonate and polyoxymethylene. The setting in this solution improves the operating stability of the above-mentioned valve delivery device and the sustainability during operation of the above-mentioned valve delivery device, thereby improving the delivery effect of the above-mentioned valve delivery device.

[0062] The embodiment of the present invention also provides a valve delivery system, including the valve delivery device and the artificial heart valve described in any one of the embodiments of the present invention.

[0063] The following combines Figures 10 to 12 to describe the operation method of the above-mentioned valve delivery device in combination with the above-mentioned artificial heart valve. Before implanting the artificial heart valve into the human body, the artificial heart valve can be installed on the stent and carried in the above-mentioned first housing. Among them, through the fixing effect of the above-mentioned anchoring member, the above-mentioned stent is clamped in the above-mentioned first housing, and in addition, the above-mentioned expansion component is used for connection. As Figure 10 shown, with the help of angiography, the stent equipped with the above-mentioned artificial heart valve and the top of the entire above-mentioned valve delivery device can be pushed into the target lesion site of the human body.

[0064] As Figure 11 shown, the above-mentioned first control structure can be operated. The rotation of the above-mentioned rotary handle drives the axial movement of the above-mentioned outer tube. The above-mentioned rotary handle pulls the above-mentioned first housing towards the end close to the above-mentioned rotary handle through the above-mentioned outer tube, gradually exposing the stent carrying the artificial heart valve, and then injecting high-pressure liquid into the above-mentioned expansion component through the above-mentioned inner tube and the above-mentioned intermediate tube. At this time, the above-mentioned expansion component is in the second expansion state and fits to the valve annulus to position the release position of the artificial heart valve.

[0065] As Figure 12As shown, high-pressure liquid can be injected into the expansion member again through the area between the inner tube and the middle tube. At this time, the expansion member has a first expansion state, and the expansion member can limit the artificial heart valve. The artificial heart valve can expand and fit to the target lesion site to be delivered.

[0066] In addition, Figure 13 is the target direction that the artificial heart valve ring needs to be adjusted to reach finally.

[0067] It should be understood that various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and no limitation is imposed herein.

[0068] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A valve delivery device for implanting an artificial heart valve into a human body, characterized in that, Comprising: a catheter portion having a first end for delivery into a human body and a second end for providing an operation, the catheter portion including an inner tube and an intermediate tube sleeved outside the inner tube; A housing portion having a first housing, an outer tube, and a second housing, a first end of the outer tube being fixedly communicated with the first housing, and a second end of the outer tube being fixedly communicated with the second housing; An anchor fixed at the first end of the intermediate tube, and a stent carrying the artificial heart valve being fixed to the anchor; A first control structure disposed at the second end of the catheter portion and configured to control the relative sliding of the intermediate tube and the outer tube; The first end of the catheter portion enters from the second end of the housing portion and passes through the housing portion, and the first end of the catheter portion exits from the first end of the housing portion, and the intermediate tube slides relative to the outer tube; The second housing includes: an outer handle, an outer cover, an outer tube fixing member, and a handle insert, wherein the outer handle is sleeved on the outer tube fixing member, and a through hole is formed at one end of the outer handle away from the outer tube fixing member; The outer tube fixing member is provided with a first inner cavity; The handle insert is fixed to the outer tube fixing member, and the handle insert is provided with a second inner cavity; The outer cover is fixedly connected to the outer handle and is provided with a first opening; The outer tube passes through the first opening and is communicated with the first inner cavity and the second inner cavity; The first control structure includes: a connecting member, a fixing member, and a rotating handle, wherein the connecting member is threadedly connected to the second housing of the housing portion, and the connecting member is provided with an inner cavity for the inner tube and the intermediate tube to pass through; The fixing member included in the first control structure fixedly connects the connecting member and the rotating handle, and the fixing member is provided with an inner cavity for the inner tube to pass through; The rotating handle is provided with an inner cavity for the inner tube to pass through, and the inner tube is fixed to the bottom of the rotating handle.

2. The valve delivery device according to claim 1, characterized in that, The anchor is columnar, and the anchor is provided with three groove structures for fixing and loading the stent of the artificial heart valve; The bottom of the anchor matches with one end of the first housing and the outer tube in the housing portion.

3. The valve delivery device according to claim 1, characterized in that, The valve delivery device further includes: an expansion member for positioning the artificial heart valve, a first end of the expansion member being fixed to the first end of the catheter portion; A second end of the expansion member is fixed to an outer surface of the anchor; The expansion member is communicated with a region formed by an outer surface of the inner tube and an inner surface of the intermediate tube; The expansion member has an expanded state and a non-expanded state.

4. The valve delivery device according to claim 3, characterized in that, The expanded state includes a first expanded state and a second expanded state; In the first expanded state, the expansion member has a first expanded size; In the second expanded state, the expansion member has a second expanded size; In the non-expanded state, the expansion member has a third expanded size; The first expanded size is greater than the second expanded size, and the second expanded size is greater than or equal to the third expanded size.

5. The valve delivery device according to claim 4, wherein the expansion member is balloon-shaped, and the expansion member is controlled to switch between the first expansion state, the second expansion state and the non-expansion state by inputting high-pressure liquid.

6. For the valve delivery device according to claim 1, the housing part is made of polycarbonate and polyoxymethylene materials; The catheter part is made of polyether block polyamide, polycarbonate and polyoxymethylene materials.

7. A valve delivery system, characterized in that, Comprising the valve delivery device according to any one of claims 1 to 6 and an artificial heart valve.

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