Storage device and transfer device for cardiac intervention valve

Abstract

The invention provides a storage device and a transfer device of a cardiac intervention valve. The storage device comprises a compression body (10) having a small end and a large end, a lumen for storing a valve (F); a compression base (20) capable of at least partially extending into the inner cavity of the compression body (10) and sliding between a first position and a second position in the axial direction, the compression base (20) being capable of abutting against a valve (F) housed in the inner cavity and preventing the valve (F) from falling out of the large end when the compression base (20) is in the first position, and the compression base (20) being capable of abutting against the valve (F) housed in the inner cavity and preventing the valve (F) from falling out of the large end when the compression base (20) is in the second position. The compression base (20) can partially push out the valve (F) from the small end; and a slide tube (50) having a tapered inner cavity, which can be fixed at the small end when the locking means are locked, and which can leave the inner cavity of the compression body (10) from the small end when the locking means are unlocked. The storage device and the transfer device are simple in structure and convenient to use.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a storage device and a transfer device for cardiac interventional valves involved in transcatheter valve replacement. Background Art

[0002] Transcatheter valve replacement can place a cardiac interventional valve (hereinafter referred to as the valve) through a minimally invasive interventional procedure, that is, the valve membrane is introduced into the patient's body through a catheter through very small surgical trauma.

[0003] Due to the structural complexity of cardiac intervention valves (such as retractable bioprostheses), the valves are usually placed on valve stents, and the valves are stored in a storage device together with the stents. During the operation, the operator takes the valve (usually together with the bioabsorbable stent) out of the storage device, loads it into a catheter via another transfer device, and further introduces it into the patient's body.

[0004] The valve storage device and valve transfer device in the above-mentioned prior art are two independent devices, and the transfer of the valve during surgery is a very complicated operation.

[0005] For example, Chinese patent publication CN114191143A discloses a valve loading tool (which can be compared to the transfer device of the present application). When using the tool to transfer the valve, the valve needs to be compressed in two steps, and the guide seat needs to be reversed in the two-step operation. In addition, before the valve is transferred, the loading tool is used to load the valve during the operation, that is, the valve needs to be loaded into the loading tool first, and then the valve is transferred in two steps. The device is costly and difficult to operate. Summary of the invention

[0006] The purpose of the present application is to overcome or at least alleviate the deficiencies of the above-mentioned prior art and to provide a storage device and transfer device for cardiac interventional valves that is simple in structure and easy to use.

[0007] According to a first aspect of the present application, a storage device for a cardiac intervention valve is provided, comprising:

[0008] The compression body is tubular and has a small end and a large end in the axial direction, and the inner cavity is used for storing the cardiac intervention valve;

[0009] a compression base, which can at least partially extend into the inner cavity of the compression body and slide between a first position and a second position in the axial direction, wherein when the compression base is in the first position, the compression base can abut against the cardiac intervention valve accommodated in the inner cavity and prevent the cardiac intervention valve from falling out of the large end, and when the compression base is in the second position, the compression base can partially push the cardiac intervention valve out of the small end; and

[0010] The sliding tube is tubular and has a tapered inner cavity. When the locking device is locked, it can be fixed at the small end of the inner cavity of the compression body, and when the locking device is unlocked, it can leave the inner cavity of the compression body from the small end.

[0011] In at least one embodiment, the compression body includes an outlet tube portion located at the small end, the outlet tube portion is formed with at least two first slits extending in the axial direction, and an inner clamp arm is formed between the two first slits.

[0012] The inner clamp arm can apply a radially inward force to the slide tube to clamp the slide tube, or

[0013] The inner clamping arms can be expanded radially outward to release the sliding tube.

[0014] In at least one embodiment, a tube fitting portion is formed on the inner peripheral wall of the inner clamp arm, and a tube matching portion is formed on the outer peripheral wall of the sliding tube, and the tube fitting portion is shape-locked with the tube matching portion.

[0015] In at least one embodiment, the storage device further comprises a fixing ring, which can be sleeved on the outer circumference of the outlet tube portion, so as to limit the inner clamping arm from being stretched outward in the radial direction.

[0016] In at least one embodiment, the compression body further comprises at least two outer clamping arms located at the periphery of the outlet cylinder portion, and when the fixing ring is sleeved on the periphery of the outlet cylinder portion, the fixing ring is located at the inner periphery of the outer clamping arms and clamped by the outer clamping arms.

[0017] In at least one embodiment, a ring fitting portion is formed on the inner peripheral wall of the outer clamp arm, and a ring matching portion is formed on the outer peripheral wall of the fixing ring, and the ring fitting portion is shape-locked with the ring matching portion.

[0018] In at least one embodiment, at least a portion of the compression body is formed with at least one slide groove extending in the axial direction, and an outer wall of the compression body is formed with at least one snap-fit ​​first fitting portion and at least one snap-fit ​​second fitting portion,

[0019] The compression base comprises a base body and at least one buckle, wherein the base body is used to be accommodated in the inner cavity of the compression body, and the buckle can pass through the slide groove and extend to the outside of the inner cavity.

[0020] When the compression base is located at the first position, the buckle is engaged with the first buckle matching portion, and when the compression base is located at the second position, the buckle is engaged with the second buckle matching portion.

[0021] According to a second aspect of the present application, a transfer device for a cardiac interventional valve is provided, characterized in that the transfer device comprises the storage device according to the first aspect of the present application, and the transfer device also comprises a tubular sheath feeder,

[0022] The sheath introducer can be connected to the small end of the compression body and allow the slide tube to be transferred to the inner cavity of the sheath introducer.

[0023] In at least one embodiment, the sheath feeder includes a first section, a second section, and a third section, the inner diameter of the first section is larger than the inner diameter of the second section, the inner diameter of the second section is larger than the inner diameter of the third section,

[0024] The first section is used for being sleeved on the small end of the compression body, and the inner diameter of the second section is equal to the outer diameter of the sliding tube.

[0025] In at least one embodiment, the minimum inner diameter of the sliding pipe is not greater than the inner diameter of the third section.

[0026] In at least one embodiment, the transfer device further comprises a push rod, one axial end of the push rod is formed as a butt end, and the outer diameter of the butt end is smaller than the inner diameter of the slide tube.

[0027] The peripheral wall of the push rod at the butt end is partially recessed to form a plurality of ear-hanging positioning grooves, the number and position of which are adapted to the ears of the cardiac intervention valve, and the ears can be inserted into the ear-hanging positioning grooves to be positioned in the circumferential direction.

[0028] A positioning portion capable of docking with the conveyor of the cardiac intervention valve is formed at the end wall of the docking end.

[0029] In at least one embodiment, the push rod is hollow in a region near the butt end, and

[0030] The butt end is formed into a bifurcated structure including a plurality of lobes, and the plurality of lobes can be stretched radially outward after being subjected to force.

[0031] In at least one embodiment, the transfer device further comprises a conveyor,

[0032] The end of the conveyor is formed with a matching portion that matches the positioning portion, and a top ring that can be connected to the ear of the cardiac intervention valve.

[0033] When the positioning portion is docked with the matching portion, the top ring is aligned with the ear-hanging positioning groove in the circumferential direction.

[0034] The storage device according to the present application can be used as a pre-storage device of the valve and a part of the transfer device at the same time, and has a simple structure and is easy to use. The transfer device according to the present application is easy to operate and can provide a very simple and accurate valve transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of a transfer device for a cardiac interventional valve according to one embodiment of the present application.

[0036] Figure 2 yes Figure 1 sectional view of .

[0037] Figure 3 yes Figure 1 Schematic diagram of the decomposition.

[0038] Figure 4 and Figure 5 yes Figure 1 Schematic diagram of the exploded structure of the middle part.

[0039] Figure 6 It is a cross-sectional view of a partial structure of a storage device for a cardiac interventional valve according to one embodiment of the present application.

[0040] Figure 7 It is a schematic exploded view of a compression body and a compression base of a storage device for a cardiac interventional valve according to one embodiment of the present application.

[0041] Figure 8 It is a schematic structural diagram of a storage device for an interventional cardiac valve according to one embodiment of the present application.

[0042] Fig. 9 It is a cross-sectional view of a storage device for a cardiac interventional valve according to one embodiment of the present application in a state where a valve is pre-installed.

[0043] Fig.10 yes Fig. 9 Schematic diagram of the compression base being pushed to the second position.

[0044] Fig.11 It is a schematic diagram of extending a push rod into a storage device of a cardiac intervention valve according to one embodiment of the present application.

[0045] Fig.12 yes Fig.11 Schematic diagram of the push rod in .

[0046] Fig.13 and Fig.14 It is a schematic cross-sectional view of the process of docking the sheath introducer and the compression body of a transfer device for a cardiac interventional valve according to one embodiment of the present application.

[0047] Fig.15 It is a schematic structural diagram of a sheath introducer of a transfer device for a cardiac interventional valve according to one embodiment of the present application.

[0048] Fig.16 yes Fig.15 sectional view of .

[0049] Figures 17 to 19 This is a schematic diagram of a process of transferring a valve from a storage device to a sheath introducer using a transfer device for a cardiac interventional valve according to one embodiment of the present application.

[0050] Description of reference numerals:

[0051] 10 compression body; 11 outer clamp arm; 110 ring matching part; 12 outlet tube part; 12g first gap; 120 inner clamp arm; 121 tube matching part; 13 buckle first matching part; 14 buckle second matching part; 15 slide groove;

[0052] 20 compression base; 21 base body; 22 buckle;

[0053] 30 sheath feeder; 31 first section; 311 first section large area; 312 first section small area; 313 first step surface; 32 second section; 33 third section; 34 slot; 35 hook;

[0054] 40: fixing ring; 41: ring matching portion;

[0055] 50 sliding pipe; 51 pipe matching portion;

[0056] 60 push rod; 60a docking end; 61 gap; 62 leaf petal; 63 ear-hanging positioning groove; 64 positioning portion; 65 tapered hole; 66 limiting portion; 70 guide tube. DETAILED DESCRIPTION

[0057] The exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, and are not intended to exhaust all possible methods of the present application, nor to limit the scope of the present application.

[0058] Reference Figures 1 to 19 , introduces a storage device and a transfer device for a cardiac interventional valve according to one embodiment of the present application.

[0059] Unless otherwise specified, refer to Figure 1 The axial direction, radial direction and circumferential direction referred to below are all based on the axial direction, radial direction and circumferential direction of the compression body.

[0060] Reference Figures 1 to 4The storage device for the cardiac intervention valve according to the present embodiment (hereinafter referred to as the storage device) includes a compression body 10, a compression base 20, a fixing ring 40 and a slide tube 50. The transfer device for the cardiac intervention valve according to the present embodiment (hereinafter referred to as the transfer device) includes the above storage device, a sheath feeder 30 and a push rod 60, or may further include a conveyor and a guide tube 70.

[0061] The storage device according to this embodiment has both the storage and transfer functions of the valve. Before the operation, the valve can be pre-stored in the storage device, for example, the valve is loaded into the storage device in a sterile production workshop. During the operation, the special structure of the storage device can make it easy to gradually remove the valve and transfer it to the guide tube 70 via the sheath inserter 30.

[0062] Next, first refer to Figures 1 to 10 , introducing the specific structure and usage of the storage device.

[0063] The compression body 10 is in the shape of a tube with one end being large and the other end being small. The valve F can enter the inner cavity of the compression body 10 through the large end of the compression body 10 to achieve preloading. The small end of the compression body 10 provides an outlet for the compression transfer of the valve F during surgery.

[0064] Reference Figure 7 A slide groove 15 extending in the axial direction is formed on the wall of the compression body 10. In the axial direction, one end of the slide groove 15 is closed, and the closed end is close to the small end of the compression body 10. The slide groove 15 extends from the closed end to the large end of the compression body 10 and forms an open opening at the large end. The slide groove 15 provides a motion guide for the compression base 20, or a motion limit.

[0065] The compression base 20 is used to be arranged at the large end of the compression body 10 to fix and / or push the valve F. The compression base 20 includes a base body 21 and a buckle 22 .

[0066] The base body 21 is used to extend into the inner cavity of the compression body 10 and abut against the valve F. Optionally, the base body 21 forms a clearance fit or a transition fit with the compression body 10. Optionally, the outer peripheral surface of the end of the base body 21 facing the small end of the compression body 10 is generally conical, so that the compression base 20 will not interfere with the inner wall of the compression body 10 at the small end during the subsequent movement process.

[0067] The buckle 22 is connected to the outer circumference of the base body 21, and the buckle 22 is used to pass through the slide groove 15 and extend to the outside of the compression body 10. Preferably, in the circumferential direction of the compression body 10, the root of the buckle 22 accommodated in the slide groove 15 is adapted to the slide groove 15, so that the slide groove 15 serves to limit the buckle 22, so that the compression base 20 can only perform axial translation along the slide groove 15.

[0068] A first buckle fitting portion 13 and a second buckle fitting portion 14 spaced apart in the axial direction are also formed on the outer peripheral wall of the compression body 10. The tail of the buckle 22 has a hook-shaped structure, which can be engaged with the first buckle fitting portion 13 or the second buckle fitting portion 14, thereby limiting the axial position of the compression base 20 on the compression body 10.

[0069] For example, refer to Fig. 9 In this state, the buckle 22 is engaged with the buckle first matching portion 13, and the compression base 20 is located at the first position in the axial direction of the compression body 10. This position is the pre-installation position of the valve F, and the valve F can be fixed in the inner cavity of the compression body 10 in a suitable form.

[0070] Reference Fig.10 In this state, the buckle 22 is engaged with the buckle second matching portion 14, and the compression base 20 is located at the second position in the axial direction of the compression body 10. This position is where the valve F begins to be transferred, and the valve F partially extends out of the small end of the compression body 10 under the push of the compression base 20.

[0071] The fixing ring 40 and the sliding tube 50 assist in radial compression and smooth transfer of the valve F.

[0072] The slide tube 50 is used to be arranged at the small end of the inner cavity of the compression body 10. The inner wall of the slide tube 50 is formed into a conical surface, and the inner diameter of the slide tube 50 is smaller as it approaches the small end, so that the valve F can be gradually compressed during the transfer process of the valve F.

[0073] Specifically, an outlet tube portion 12 is formed at the small end of the compression body 10. The outlet tube portion 12 is formed with four first slits 12g extending in the axial direction, and a spring-shaped inner clamp arm 120 is defined between two adjacent first slits 12g in the circumferential direction. The inner clamp arm 120 can be slightly moved in the radial direction to play a role in holding and releasing the slide tube 50.

[0074] Preferably, a convex tube matching portion 121 is formed on the radial inner side of the inner clamp arm 120. An annular groove-shaped tube matching portion 51 is formed on the outer periphery of the slide tube 50. When the slide tube 50 is installed in the outlet tube portion 12, the tube matching portion 121 extends into the tube matching portion 51, or the tube matching portion 121 is matched with the tube matching portion 51 in a form-locking manner, so that the slide tube 50 is limited in the axial direction relative to the outlet tube portion 12.

[0075] The fixing ring 40 is used to be sleeved on the outer periphery of the outlet tube portion 12 to prevent the inner clamping arm 120 from elastically deforming radially outward. Specifically, the small end of the compression body 10 is further formed with two cantilevered outer clamping arms 11 on the outer periphery of the outlet tube portion 12. When the fixing ring 40 is sleeved on the outer periphery of the outlet tube portion 12, the outer clamping arms 11 can embrace the fixing ring 40 to achieve positioning of the fixing ring 40. Optionally, the inner diameter of the fixing ring 40 is equal to or slightly smaller than the outer diameter of the outlet tube portion 12; the outer diameter of the fixing ring 40 is equal to or slightly larger than the inner diameter of the area defined by the outer clamping arms 11.

[0076] In this embodiment, the outer periphery of the fixing ring 40 is formed into a convex tooth-shaped annular ring matching portion 41, and the inner peripheral wall of the outer clamp arm 11 is formed into a concave ring matching portion 110. When the fixing ring 40 is sleeved on the outlet tube portion 12, the ring matching portion 41 extends into the ring matching portion 110, or the ring matching portion 41 and the ring matching portion 110 are matched in a shape-locking manner, so that the fixing ring 40 is limited in the axial direction relative to the outlet tube portion 12 or the outer clamp arm 11.

[0077] The cooperation between the fixing ring 40 and the outer clamp arm 11 forms a locking device for the slide tube 50. When the outer clamp arm 11 holds the fixing ring 40, the locking device is locked, and the slide tube 50 is fixed at the small end of the inner cavity of the compression body 10; when the fixing ring 40 is separated from the clamping of the outer clamp arm 11, the locking device is unlocked, and the slide tube 50 can squeeze the inner clamp arm 120 under the axial force to deform and open outward, and then the slide tube 50 can leave the inner cavity of the compression body 10 from the small end, which is convenient for the subsequent transfer of the valve F.

[0078] At this point, the reader can understand how the storage device pre-stores the valve F, and how, when the valve F needs to be transferred, the valve F is gradually exposed from the small end of the compression body 10 in a radially contracted manner by pushing or pressing the compression base 20. In the process of the valve F gradually being exposed, the slide tube 50 is locked at the outlet of the small end, which helps the valve F to contract.

[0079] Next, the transfer device according to the present application and the process of transferring the valve F thereof are introduced.

[0080] After the compression main entity 10 is exposed at one end of the valve F, the valve F can be connected to the conveyor with the help of the push rod 60.

[0081] The conveyor is not shown in the figure. It can be understood that the conveyor has a conveying guide wire and a top ring at the end, and the top ring can be connected to the lug (not shown in the figure) located at the valve F. The connection structure of the conveyor and the valve F here belongs to the prior art, for example, the utility model CN213641419U previously applied by the inventor can be referred to. The entire content of the utility model is introduced into this application, and the relevant structure is not repeated.

[0082] The push rod 60 can provide a guide for the process of connecting the ear of the valve F to the top ring of the delivery device.

[0083] Reference Fig.11 and Fig.13 One end of the push rod 60 is formed as a butt end 60a for butting with the end of the conveyor. The butt end 60a is a hollow structure, and the tip of the conveyor can extend into the butt end 60a.

[0084] To prevent the tip of the conveyor from accidentally falling out after entering the push rod 60, the inner cavity of the butt end 60a is formed into a tapered hole 65, and the diameter of the tapered hole 65 becomes smaller as it approaches the end. The inner diameter of the tapered hole 65 at the maximum diameter is larger than the outer diameter of the tip of the conveyor, and the inner diameter of the tapered hole 65 at the minimum diameter is smaller than the outer diameter of the tip of the conveyor.

[0085] In order to facilitate the conveyor tip to enter the inner cavity of the push rod 60, the butt end 60a is formed into a bifurcated structure. In this embodiment, the butt end 60a includes three lobes 62, and a gap 61 is formed between adjacent lobes 62. Therefore, the tapered hole 65 can be opened by squeezing the lobes 62 radially outward at the conveyor tip, and after the tip completely enters the inner cavity of the push rod 60, the lobes 62 are reset to store the tip in the inner cavity of the push rod 60.

[0086] An annular flange-shaped stopper 66 is formed in the axial middle region of the push rod 60. When the push rod 60 is inserted into the compression body 10 and the butt end 60a is extended from the small end of the compression body 10, the stopper 66 will abut against the part of the compression base seat 20 in the compression body 10 to remind the operator that the push rod 60 has been inserted into place. In this state, the leaf 62 is completely extended out of the compression body 10.

[0087] The outer peripheral wall of the push rod 60 is formed with a plurality of (three in this embodiment) axially extending ear positioning grooves 63 at the butt end 60a. The width of the ear positioning groove 63 in the circumferential direction matches the width of the ear of the valve F, so that the ear of the valve F can be just accommodated in the ear positioning groove 63. The push rod 60 is formed with a plurality of (three in this embodiment) axially protruding positioning portions 64 at the end wall located at the butt end 60a.

[0088] Although not shown in the figure, it can be understood that the end of the conveyor is formed with a matching portion that docks with the positioning portion 64. When the positioning portion 64 docks with the matching portion, the ear positioning groove 63 and the top ring at the end of the conveyor are aligned in the circumferential direction. In this case, after the ear of the valve F is pushed into the ear positioning groove 63, the valve F is continuously pushed axially, and the ear can smoothly enter the top ring at the end of the conveyor to achieve docking.

[0089] For specific usage, please refer to Fig.11 (The valve F and the conveyor are not shown in the figure), after the ear end of the valve F extends out from the small end of the compression body 10, the push rod 60 passes through the compression body 10 so that the docking end 60a also extends out from the small end of the compression body 10.

[0090] Then, the tip of the conveyor is inserted into the inner cavity of the push rod 60. The relative position between the valve F and the push rod 60 is adjusted so that the lug of the valve F enters the lug positioning groove 63. The positioning portion 64 is docked with the matching portion at the end of the conveyor.

[0091] Then, the compression body 10 is displaced axially upward in the direction of the docking portion 60a relative to the push rod 60, driving the hanging ear of the valve F to slide into the top ring at the end of the conveyor, and the valve F is loaded on the conveyor.

[0092] After that, the valve F needs to be further contracted by the sheathing device 30 to enter the inside of the guide tube 70. The sheathing device 30 has a large diameter section and a small diameter section. The valve F will first enter the large diameter section, and then gradually be dragged into the small diameter section to achieve radial contraction. The transfer device according to the present application cleverly utilizes the connection structure between the sheathing device 30 and the compression body 10 to achieve the transfer of the slide tube 50 to the inside of the sheathing device 30 following the movement of the valve F.

[0093] Next, refer to Figures 13 to 19 , introduces the specific structure of the sheath feeder 30 and its usage.

[0094] The sheath feeder 30 is in the shape of a tube with a variable diameter, and includes a first section 31 , a second section 32 and a third section 33 .

[0095] The first section 31 has the largest inner diameter, the second section 32 has the second largest inner diameter, and the third section 33 has the smallest inner diameter.

[0096] A second step surface 36 is defined between the second section 32 and the third section 33 .

[0097] The first section 31 is used to be sleeved on the outer circumference of the small end of the compression body 10 , the maximum inner diameter of the first section 31 is not less than the outer diameter of the outlet tube 12 , and the minimum outer diameter of the first section 31 is not greater than the minimum inner diameter of the inscribed circle of the inner clamp arm 11 .

[0098] The second section 32 is a transition zone, which also corresponds to the large diameter section described above, and is used to smoothly transfer the valve F from the compression body 10 to the sheath inserter 30 . The outer diameter of the second section 32 is not less than the outer diameter of the slide tube 50 .

[0099] The third section 33 is a small diameter section, which is used to make the valve F further contract.

[0100] The first section 31 also includes a first section large area 311 and a first section small area 312. The inner diameter of the first section large area 311 is larger than the inner diameter of the first section small area 312, and a first step surface 313 is formed between the first section large area 311 and the first section small area 312. The inner diameter of the first section large area 311 is not less than the outer diameter of the fixing ring 40, and the inner diameter of the first section small area 312 is less than the outer diameter of the fixing ring 40. Therefore, when the first section 31 is sleeved onto the small end of the compression body 10, the first step surface 313 will squeeze the fixing ring 40 in the axial direction, so that the fixing ring 40 is freed from the restraint of the outer clamp arm 11. Once the fixing ring 40 is freed from the restraint of the outer clamp arm 11, it means that the locking of the sliding tube 50 is released.

[0101] Optionally, a notch 34 is formed on the peripheral wall of the first section 31, and the notch 34 can just accommodate the outer clamp arm 11. A hook 35 is formed at the bottom of the notch 34, and the hook 35 can be engaged with the end of the outer clamp arm 11. Fig.14 After the fixing ring 40 is pushed by the sheath feeder 30 and freed from the restraint of the outer clamp arm 11, the sheath feeder 30 is pushed to the bottom, and the hook 35 can be just caught by the end of the outer clamp arm 11, thereby realizing a firm connection between the sheath feeder 30 and the compression body 10.

[0102] After this, refer to Figures 17 to 19 If the conveyor (not shown) connected to the valve F is further dragged, the valve F will first drag the slide tube 50 away from the outlet tube 12. This is because the uncontracted part of the valve F will exert an axial force on the slide tube 50, causing the slide tube 50 to tend to move in the direction of the second step surface 36 of the sheath feeder 30. During this process, the inner clamp arm 120 will be subjected to pressure toward the radial outside. Since the inner diameter of the first section 31 is slightly larger than the outer diameter of the outlet tube 12, the inner clamp arm 120 subjected to force will undergo elastic deformation toward the radial outside, thereby releasing the slide tube 50. The released slide tube 50 will eventually abut against the second step surface 36 as the valve F moves.

[0103] During this process, the slide tube 50 leaves the outlet tube 12, releasing the radial space of the outlet tube 12, so that the valve F can enter the sheath inserter 30 more smoothly. In addition, the slide tube 50 abutting against the second step surface 36 can also play a secondary guiding role there, providing guidance for the contraction of the valve F in the third section 33.

[0104] Afterwards, the conveyor connected to the valve F is further dragged to further contract the valve F in the third section 33 and finally collapse it into the guide tube 70 .

[0105] It should be understood that the above-mentioned embodiments and some aspects or features thereof may be appropriately combined.

[0106] This application has at least one of the following advantages:

[0107] (i) The storage device according to the present application can be used to pre-install a valve and can also be used as a part of a transfer device during the transfer of the valve.

[0108] (ii) In case the valve needs to be transferred, the storage device can be moved by a very simple operation, that is, the base is pushed from the first position to the second position to partially extend the valve.

[0109] (iii) The clever cooperation between the fixing ring and the sliding tube makes the transfer of the valve simple and smooth. The sliding tube can not only guide the valve when it first extends out of the compression body, but also enter the sheath inserter when the sheath inserter and the compression body are docked; it can not only open the channel at the outlet of the compression body at the appropriate time, but also be reused in the sheath inserter.

[0110] (iv) The ear-hanging positioning groove and the positioning portion located on the push rod can realize automatic alignment of the valve and the top ring of the conveyor, so that the loading of the valve and the conveyor is accurate and convenient.

[0111] Of course, the present application is not limited to the above-mentioned embodiments, and those skilled in the art can make various modifications to the above-mentioned embodiments of the present application under the guidance of the present application without departing from the scope of the present application. For example:

[0112] (i) The present application does not limit the number of the outer clamping arms 11 , the inner clamping arms 120 , and the leaflets 62 .

[0113] (ii) The present application does not limit the specific shapes of all positioning or limiting components. For example, the ring matching portion 41 may also be a recessed annular structure, and the corresponding ring matching portion 110 may also be a raised structure.

Claims

1. A storage device for cardiac interventional valves, characterized in that: include: The compression body (10) is tubular and has a small end and a large end in the axial direction, and the inner cavity is used to store the cardiac intervention valve (F); The compression base (20) is capable of at least partially extending into the inner cavity of the compression body (10) and sliding between a first position and a second position in the axial direction. When the compression base (20) is located at the first position, the compression base (20) can abut against the cardiac intervention valve (F) accommodated in the inner cavity and prevent the cardiac intervention valve (F) from falling out of the large end. When the compression base (20) is located at the second position, the compression base (20) can partially push the cardiac intervention valve (F) out of the small end. as well as The sliding tube (50) is tubular and has a tapered inner cavity. When the locking device is locked, it can be fixed at the small end of the inner cavity of the compression body (10), and when the locking device is unlocked, it can leave the inner cavity of the compression body (10) from the small end.

2. The storage device for cardiac interventional valves according to claim 1, characterized in that: The compression body (10) comprises an outlet tube portion (12) located at the small end, the outlet tube portion (12) is formed with at least two first slits (12g) extending in the axial direction, an inner clamp arm (120) is formed between the two first slits (12g), The inner clamp arm (120) can apply a radially inward force to the slide tube (50) to clamp the slide tube (50), or The inner clamp arm (120) can be expanded radially outward to release the sliding tube (50).

3. The storage device for cardiac intervention valves according to claim 2, characterized in that: A tube fitting portion (121) is formed on the inner peripheral wall of the inner clamp arm (120), and a tube matching portion (51) is formed on the outer peripheral wall of the sliding tube (50), and the tube fitting portion (121) is shape-locked with the tube matching portion (51).

4. The storage device for cardiac interventional valves according to claim 2, characterized in that: The storage device further comprises a fixing ring (40), which can be sleeved on the outer circumference of the outlet tube portion (12), thereby limiting the inner clamping arm (120) from being stretched outward in the radial direction.

5. The storage device for cardiac interventional valves according to claim 4, characterized in that: The compression body (10) further comprises at least two outer clamping arms (11) located on the outer periphery of the outlet tube portion (12); when the fixing ring (40) is sleeved on the outer periphery of the outlet tube portion (12), the fixing ring (40) is located on the inner periphery of the outer clamping arms (11) and is clamped by the outer clamping arms (11).

6. The storage device for cardiac interventional valves according to claim 4, characterized in that: A ring matching portion (110) is formed on the inner peripheral wall of the outer clamp arm (11), and a ring matching portion (41) is formed on the outer peripheral wall of the fixing ring (40), and the ring matching portion (110) is shape-locked with the ring matching portion (41).

7. The storage device for cardiac interventional valves according to claim 1, characterized in that: At least a portion of the compression body (10) is formed with at least one slide groove (15) extending in the axial direction, and an outer wall of the compression body (10) is formed with at least one first snap-fitting portion (13) and at least one second snap-fitting portion (14), The compression base (20) comprises a base body (21) and at least one buckle (22), wherein the base body (21) is used to be accommodated in the inner cavity of the compression body (10), and the buckle (22) can pass through the slide groove (15) and extend to the outside of the inner cavity. When the compression base (20) is located at the first position, the buckle (22) is engaged with the first buckle matching portion (13), and when the compression base (20) is located at the second position, the buckle (22) is engaged with the second buckle matching portion (14).

8. A transfer device for cardiac interventional valves, characterized in that: The transfer device comprises a storage device according to any one of claims 1 to 7, and the transfer device further comprises a tubular sheath feeder (30), The sheath introducer (30) can be connected to the small end of the compression body (10) and allows the slide tube (50) to be transferred to the inner cavity of the sheath introducer (30).

9. The cardiac intervention valve transfer device according to claim 8, characterized in that: The sheath feeder (30) comprises a first section (31), a second section (32) and a third section (33), the inner diameter of the first section (31) is larger than the inner diameter of the second section (32), the inner diameter of the second section (32) is larger than the inner diameter of the third section (33), The first section (31) is used to be sleeved onto the small end of the compression body (10), and the inner diameter of the second section (32) is equal to the outer diameter of the sliding tube (50).

10. The cardiac intervention valve transfer device according to claim 9, characterized in that: The minimum inner diameter of the sliding tube (50) is not greater than the inner diameter of the third section (33).

11. The cardiac intervention valve transfer device according to claim 8, characterized in that: The transfer device further comprises a push rod (60), one axial end of the push rod (60) is formed as a butt end (60a), and the outer diameter of the butt end (60a) is smaller than the inner diameter of the slide tube (50). The peripheral wall of the push rod (60) at the butt end (60a) is partially recessed to form a plurality of ear-hanging positioning grooves (63). The number and positions of the ear-hanging positioning grooves (63) are adapted to the ears of the cardiac intervention valve (F). The ears can be inserted into the ear-hanging positioning grooves (63) to be positioned in the circumferential direction. A positioning portion (64) capable of docking with the conveyor of the cardiac intervention valve is formed at the end wall of the docking end (60a).

12. The cardiac intervention valve transfer device according to claim 11, characterized in that: The push rod (60) is hollow in a region close to the butt end (60a), and The butt end (60a) is formed into a bifurcated structure including a plurality of lobes (62), and the plurality of lobes (62) can be expanded radially outward after being subjected to force.

13. The cardiac intervention valve transfer device according to claim 11, characterized in that: The transfer device also includes a conveyor, The end of the conveyor is formed with a matching portion that matches the positioning portion (64) and a top ring that can be connected to the ear of the cardiac intervention valve (F). When the positioning portion (64) is docked with the matching portion, the top ring and the ear-hanging positioning groove (63) are aligned in the circumferential direction.

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