Storage and transfer device for heart intervention valves

Abstract

The application provides a storage device and transfer device of a heart intervention valve. The storage device comprises a compression main body (10) having a small end and a large end, an inner cavity for storing a valve (F); a compression base (20) capable of at least partially extending into the inner cavity of the compression main body (10) and sliding between a first position and a second position in the axial direction, in the case that the compression base (20) is located at the first position, the compression base (20) can abut against the valve (F) accommodated in the inner cavity and prevent the valve (F) from falling out of the large end, in the case that the compression base (20) is located at the second position, the compression base (20) can partially push the valve (F) out from the small end; and a sliding tube (50) having a tapered inner cavity, capable of being fixed at the small end in the case that a locking device is locked and capable of leaving the inner cavity of the compression main body (10) from the small end in the case that the locking device is unlocked. The storage device and transfer device according to the application 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 a heart intervention valve involved in transcatheter valve replacement. BACKGROUND

[0002] Transcatheter valve replacement is a minimally invasive interventional surgery to place a heart intervention valve (hereinafter referred to as a valve) in a patient's body, i.e. to introduce a valve membrane into a patient's body through a very small surgical wound.

[0003] Due to the structural complexity of the heart intervention valve (such as a collapsible biological valve), it is usually necessary to apply the valve to a valve stent, and the valve together with the stent is stored in a storage device. 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 set of transfer device and further introduces it into the patient's body.

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

[0005] For example, Chinese patent publication CN114191143A discloses a loading tool for a valve (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 during the two-step operation. In addition, the loading of the valve by the loading tool is performed during the operation, i.e. the valve needs to be loaded into the loading tool during the operation, and then transferred in two steps. The device is costly and difficult to operate. SUMMARY

[0006] The purpose of the present application is to overcome or at least alleviate the deficiencies of the prior art described above, and to provide a storage device and a transfer device for a heart intervention valve which are simple in structure and easy to use.

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

[0008] a compression body in the shape of a tube having a small end and a large end in the axial direction, and an inner cavity for storing a heart intervention valve;

[0009] a compression base capable of at least partially extending into the inner cavity of the compression body and sliding between a first position and a second position in the axial direction, wherein, when the compression base is located at the first position, the compression base can abut against the heart intervention valve stored in the inner cavity and prevent the heart intervention valve from falling out of the large end, and when the compression base is located at the second position, the compression base can partially push the heart intervention valve out of the small end; and

[0010] a slide tube, which is tubular and has a tapered inner cavity, is capable of being fixed at a small end of the inner cavity of the compression body when the locking device is locked, and is capable of being separated from the inner cavity of the compression body from the small end when the locking device is unlocked.

[0011] In at least one embodiment, the compression body comprises an outlet cylinder portion at the small end, the outlet cylinder portion is formed with at least two first slits extending in the axial direction, an inner clamping arm is formed between the two first slits,

[0012] the inner clamping arm is capable of applying a force to the slide tube towards the radial inner side to clamp the slide tube, or

[0013] the inner clamping arm is capable of being expanded towards the radial outer side to release the slide tube.

[0014] In at least one embodiment, an inner peripheral wall of the inner clamping arm is formed with a tube matching portion, an outer peripheral wall of the slide tube is formed with a tube counter-matching portion, and the tube matching portion and the tube counter-matching portion are form-locked.

[0015] In at least one embodiment, the storage device further comprises a fixing ring, the fixing ring is capable of being sleeved on the outer periphery of the outlet cylinder portion, so as to limit the inner clamping arm from being expanded towards the radial outer side.

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

[0017] In at least one embodiment, an inner peripheral wall of the outer clamping arm is formed with a ring matching portion, an outer peripheral wall of the fixing ring is formed with a ring counter-matching portion, and the ring matching portion and the ring counter-matching portion are form-locked.

[0018] In at least one embodiment, at least part of the compression body is formed with at least one sliding groove extending in the axial direction, and an outer wall of the compression body is formed with at least one buckle first matching portion and at least one buckle second matching portion,

[0019] the compression base comprises a base body and at least one buckle, the base body is used for accommodating in the inner cavity of the compression body, and the buckle is capable of extending to the outside of the inner cavity through the sliding groove,

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

[0021] According to a second aspect of the present application, there is provided a transfer device for a heart intervention valve, characterized in that the transfer device comprises a storage device according to the first aspect of the present application, and the transfer device further comprises a sheathing tube,

[0022] The sheathing tube is connectable to the small end of the compression body and allows the transfer of the sliding tube to the inner lumen of the sheathing tube.

[0023] In at least one embodiment, the sheathing tube comprises 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, and the inner diameter of the second section is larger than the inner diameter of the third section,

[0024] The first section is configured to be sleeved to 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 tube 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 end of the push rod in the axial direction is formed into a docking end, the outer diameter of the docking end is smaller than the inner diameter of the sliding tube,

[0027] The peripheral wall of the push rod at the docking end is partially recessed to form a plurality of ear positioning grooves, the number and position of the ear positioning grooves are adapted to the ears of the heart intervention valve, and the ears can be positioned in the circumferential direction by extending into the ear positioning grooves.

[0028] An end wall of the docking end is formed with a positioning portion which can be docked with a delivery device of the heart intervention valve.

[0029] In at least one embodiment, the push rod is hollow in the region close to the docking end, and,

[0030] The docking end is formed into a bifurcated structure comprising a plurality of leaflets which can be expanded radially outwardly under force.

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

[0032] An end of the delivery device is formed with a counterpart portion which is paired with the positioning portion, and a top ring which can be connected to the ears of the heart intervention valve,

[0033] When the positioning portion is docked with the counterpart portion, the top ring is aligned with the ear positioning grooves in the circumferential direction.

[0034] The storage device according to the present application can simultaneously serve as a pre-storage device of the valve and a part of the transfer device of the valve, and has simple structure and convenient use. The transfer device according to the present application has simple operation and can provide very simple and accurate valve transfer. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic diagram of a transfer device of a heart intervention valve according to an embodiment of the present application.

[0036] Figure 2 is a sectional view of Figure 1 .

[0037] Figure 3 is an exploded schematic diagram of Figure 1 .

[0038] Figure 4 and Figure 5 is a schematic diagram of part of the structure in Figure 1 .

[0039] Figure 6 is a sectional view of part of the structure of a storage device of a heart intervention valve according to an embodiment of the present application.

[0040] Figure 7 is an exploded schematic diagram of a compression body and a compression base of a storage device of a heart intervention valve according to an embodiment of the present application.

[0041] Figure 8 is a structural schematic diagram of a storage device of a heart intervention valve according to an embodiment of the present application.

[0042] Figure 9 is a sectional view of a storage device of a heart intervention valve according to an embodiment of the present application in the case of pre-storing a valve.

[0043] Figure 10 is a schematic diagram of the compression base in Figure 9 being pushed to the second position.

[0044] Figure 11 is a schematic diagram of extending a push rod into a storage device of a heart intervention valve according to an embodiment of the present application.

[0045] Figure 12 is a schematic diagram of the push rod in Figure 11 .

[0046] Figure 13 and Figure 14 is a sectional view of a sheathing device and a compression body of a transfer device of a heart intervention valve according to an embodiment of the present application in the process of docking.

[0047] Figure 15 This is a schematic structural diagram of a sheath inserter of a cardiac interventional valve transfer device according to one embodiment of the present application.

[0048] Figure 16 yes Figure 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 portion; 12 outlet tube portion; 12g first gap; 120 inner clamp arm; 121 tube matching portion; 13 first buckle matching portion; 14 second buckle matching portion; 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 tube; 51 tube 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 following describes exemplary embodiments of the present application 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 embodiments 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 stated, refer to Figure 1 The axial, radial and circumferential directions referred to below are all based on the axial, radial and circumferential directions of the compression body.

[0060] Reference Figures 1 to 4According to the storage device of the heart intervention valve of the present embodiment (hereinafter referred to as the storage device), a compression main body 10, a compression base 20, a fixing ring 40 and a sliding tube 50 are included. According to the transfer device of the heart intervention valve of the present embodiment (hereinafter referred to as the transfer device), the above-mentioned storage device, an introducer 30 and a push rod 60 are included, or further a delivery device and a guide tube 70 can be included.

[0061] The storage device according to the present embodiment has both the functions of storage and transfer 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. In the operation, the special structure of the storage device can make the valve be conveniently taken out step by step and transferred to the guide tube 70 through the introducer 30.

[0062] Next, first referring to Figures 1 to 10 , the specific structure and use method of the storage device are introduced.

[0063] The compression main body 10 is in the shape of a tube with one end large and the other end small. The valve F can be pre-loaded into the inner cavity of the compression main body 10 through the large end of the compression main body 10. The small end of the compression main body 10 provides an outlet for the compression and transfer of the valve F in the operation.

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

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

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

[0067] The buckle 22 is connected to the outer periphery of the base main body 21 and is used to extend to the outside of the compression main body 10 through the sliding groove 15. Preferably, in the circumferential direction of the compression main body 10, the root of the buckle 22 contained in the sliding groove 15 is adapted to the sliding groove 15, so that the sliding groove 15 limits the buckle 22 and makes the compression base 20 only axially translate along the sliding groove 15.

[0068] The outer peripheral wall of the compression body 10 is further formed with a first snap-fit portion 13 and a second snap-fit portion 14 axially spaced apart. The tail portion of the snap 22 is formed with a hook-like structure capable of being engaged with the first snap-fit portion 13 or the second snap-fit portion 14, thereby defining the axial position of the compression base 20 on the compression body 10.

[0069] For example, with reference to Figure 9 In this state, the snap 22 is engaged with the first snap-fit portion 13, and at this time, the compression base 20 is also referred to as being located at a first position in the axial direction of the compression body 10. This position is a pre-arrangement 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] With reference to Figure 10 In this state, the snap 22 is engaged with the second snap-fit portion 14, and at this time, the compression base 20 is also referred to as being located at a second position in the axial direction of the compression body 10. This position is a position at which the valve F starts to be transferred, and the valve F partially protrudes from the small end of the compression body 10 under the pushing of the compression base 20.

[0071] The fixing ring 40 and the slide tube 50 help the radial compression and smooth transfer of the valve F.

[0072] The slide tube 50 is arranged at the small end of the inner cavity of the compression body 10. The inner wall of the slide tube 50 is formed in a conical shape, and the inner diameter of the slide tube 50 becomes smaller as it approaches the small end, thereby being capable of gradually compressing the valve F during the transfer of the valve F.

[0073] Specifically, the small end of the compression body 10 is formed with an outlet cylinder portion 12. The outlet cylinder portion 12 is formed with four first slits 12g extending in the axial direction, and an inner clamping arm 120 in the shape of a spring leaf is defined between two first slits 12g adjacent in the circumferential direction. The inner clamping arm 120 can be slightly pushed in the radial direction to achieve the clamping and releasing of the slide tube 50.

[0074] Preferably, the radial inner side of the inner clamping arm 120 is formed with a protrusion-like tube fitting portion 121. The outer periphery of the slide tube 50 is formed with an annular groove-like tube counter-fitting portion 51. In the case where the slide tube 50 is mounted on the outlet cylinder portion 12, the tube fitting portion 121 extends into the tube counter-fitting portion 51, or in other words, the tube fitting portion 121 and the tube counter-fitting portion 51 are shape-lockedly fitted, so that the slide tube 50 is axially positioned relative to the outlet cylinder portion 12.

[0075] The fixed ring 40 is used to be sleeved on the outer periphery of the outlet cylinder portion 12 to prevent the inner clamping arm 120 from being elastically deformed towards the radial outer side. 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 cylinder portion 12, and in the case where the fixed ring 40 is sleeved on the outer periphery of the outlet cylinder portion 12, the outer clamping arms 11 can embrace the fixed ring 40 to achieve positioning of the fixed ring 40. Optionally, the inner diameter of the fixed ring 40 is equal to or slightly smaller than the outer diameter of the outlet cylinder portion 12; the outer diameter of the fixed 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 fixed ring 40 is formed into a toothed annular ring matching portion 41, and the inner peripheral wall of the outer clamping arm 11 is formed into a recessed annular matching portion 110. In the case where the fixed ring 40 is sleeved on the outlet cylinder portion 12, the ring matching portion 41 extends into the annular matching portion 110, or in other words, the ring matching portion 41 is shape-lockedly matched with the annular matching portion 110, so that the fixed ring 40 is axially positioned relative to the outlet cylinder portion 12 or the outer clamping arm 11.

[0077] The matching of the fixed ring 40 and the outer clamping arm 11 forms a locking device for the sliding tube 50. When the outer clamping arm 11 holds the fixed ring 40, the locking device is locked, and the sliding tube 50 is fixed at the small end of the inner cavity of the compression body 10; when the fixed ring 40 is disengaged from the clamping of the outer clamping arm 11, the locking device is unlocked, and the sliding tube 50 can be extruded to deform the inner clamping arm 120 to open outward under the action of an axial force, and then the sliding tube 50 can exit the inner cavity of the compression body 10 from the small end, facilitating subsequent transfer of the valve F.

[0078] So far, the reader can understand how the storage device pre-stores the valve F, and how to gradually expose the valve F from the small end of the compression body 10 in a radial size-shrinking manner by pushing or pressing the compression base 20 when the valve F needs to be transferred.

[0079] Next, the transfer device according to the present application and its transfer process for the valve F are introduced.

[0080] After one end of the valve F is exposed from the compression main body 10, the valve F can be hung with the delivery device by means of the push rod 60.

[0081] The delivery device is not shown in the figure. It can be understood that the delivery device has a delivery guide wire and a top ring at the end, which can be connected to the ear of the valve F (not shown in the figure). The connection structure of the delivery device and the valve F here belongs to the prior art, for example, reference can be made to the utility model CN213641419U of the inventor's prior application. The entire content of the utility model is incorporated into the present application, and the relevant structure will not be described again.

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

[0083] Referring to Figure 11 and Figure 13 , one end of the push rod 60 is formed as a docking end 60a for docking with the end of the delivery device. The docking end 60a is a hollow structure, and the tip of the delivery device can extend into the inside of the docking end 60a.

[0084] In order to avoid the tip of the delivery device from accidentally coming out after entering the push rod 60, the inner cavity of the docking end 60a is formed as a tapered hole 65, which becomes smaller in diameter as it gets closer to the end. The inner diameter of the tapered hole 65 at the largest diameter is larger than the outer diameter of the tip of the delivery device, and the inner diameter of the tapered hole 65 at the smallest diameter is smaller than the outer diameter of the tip of the delivery device.

[0085] In order to facilitate the tip of the delivery device to enter the inner cavity of the push rod 60, the docking end 60a is formed as a bifurcated structure. In this embodiment, the docking end 60a includes three leaflets 62, and a gap 61 is formed between adjacent leaflets 62. In this way, the tip of the delivery device can open the tapered hole 65 by pressing the leaflets 62 radially outward, and after the tip completely enters the inner cavity of the push rod 60, the leaflets 62 reset to accommodate the tip in the inner cavity of the push rod 60.

[0086] The middle part of the push rod 60 in the axial direction is formed with an annular flange-shaped limiting part 66. In the process of extending the push rod 60 into the compression body 10 and making the docking end 60a extend out of the small end of the compression body 10, the limiting part 66 will abut against the part of the compression base 20 in the compression body 10 to prompt the operator that the push rod 60 has been extended in place, and in this state, the leaflets 62 are completely extended out of the compression body 10.

[0087] The outer peripheral wall of the push rod 60 at the docking end 60a is formed with a plurality of (3 in this embodiment) ear positioning grooves 63 extending in the axial direction. The width of the ear positioning groove 63 in the circumferential direction is matched with the width of the ear of the valve F, so that the ear of the valve F can be exactly accommodated in the ear positioning groove 63. The end wall of the push rod 60 at the docking end 60a is formed with a plurality of (3 in this embodiment) positioning parts 64 protruding in the axial direction.

[0088] Although not shown in the figures, it can be understood that the end of the delivery device is formed with a counterpart to the positioning portion 64. When the positioning portion 64 is in abutment with the counterpart, the ear positioning groove 63 is in alignment with the top ring at the end of the delivery device 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 be smoothly abutted into the top ring at the end of the delivery device.

[0089] The specific use method can refer to Figure 11 (not shown in the figures), after the ear end of the valve F is extended from the small end of the compression body 10, the push rod 60 is inserted through the compression body 10, and the abutment end 60a is also extended from the small end of the compression body 10.

[0090] Then the tip of the delivery device 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 ear of the valve F enters the ear positioning groove 63. And the positioning portion 64 is in abutment with the counterpart at the end of the delivery device.

[0091] Then the compression body 10 is displaced relative to the push rod 60 in the axial direction of the abutment end 60a, so that the ear of the valve F slides into the top ring at the end of the delivery device, and the valve F is loaded into the delivery device.

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

[0093] Next, the specific structure of the sheathing device 30 and its use method will be described with reference to Figures 13 to 19 .

[0094] The sheathing device 30 is a variable-diameter tube, including a first section 31, a second section 32 and a third section 33.

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

[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 periphery 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 cylinder portion 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 clamping arm 11.

[0098] The second section 32 is a transition section, also corresponding to the large diameter section as introduced above, for facilitating the transfer of the valve F from the compression body 10 to the sheathing device 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 for further shrinking of the valve F.

[0100] The first section 31 further comprises a first section large zone 311 and a first section small zone 312, the inner diameter of the first section large zone 311 is larger than that of the first section small zone 312, and a first step surface 313 is formed between the first section large zone 311 and the first section small zone 312. The inner diameter of the first section large zone 311 is not less than the outer diameter of the fixing ring 40, and the inner diameter of the first section small zone 312 is less than the outer diameter of the fixing ring 40. Thus, during the process of the first section 31 being sleeved to the small end of the compression body 10, the first step surface 313 will axially press the fixing ring 40, so as to release the fixing ring 40 from the constraint of the outer clamping arm 11. Once the fixing ring 40 is released from the constraint of the outer clamping arm 11, it means that the locking of the slide tube 50 is released.

[0101] Optionally, the peripheral wall of the first section 31 is formed with a notch 34, which is just capable of accommodating the outer clamping arm 11. The bottom of the notch 34 is formed with a hook portion 35, which is capable of being buckled with the end of the outer clamping arm 11. Referring to Figure 14 After the fixing ring 40 is released from the constraint of the outer clamping arm 11 by the sheathing device 30, the sheathing device 30 is pushed to the bottom, and the hook portion 35 is just buckled with the end of the outer clamping arm 11, so as to realize the firm connection between the sheathing device 30 and the compression body 10.

[0102] After that, referring to Figures 17 to 19 If the delivery device (not shown in the figure) connected with the valve F is further dragged, the valve F will first drag the slide tube 50 away from the outlet cylinder 12. This is because the unshrunk part of the valve F will exert an axial force on the slide tube 50, so that the slide tube 50 has a tendency to move in the direction of the second step surface 36 of the sheathing device 30, and in this process, the inner clamping arm 120 will be subjected to a pressure towards the radial outside. Since the inner diameter of the first section 31 is slightly larger than the outer diameter of the outlet cylinder 12, the stressed inner clamping arm 120 will be elastically deformed towards the radial outside, so as to release the slide tube 50. The released slide tube 50 will eventually abut against the second step surface 36 along with the movement of the valve F.

[0103] In this process, the slide tube 50 leaves the outlet cylinder 12, releasing the radial space of the outlet cylinder 12, so that the process of the valve F entering the sheathing device 30 is more smooth. In addition, the slide tube 50 abutting against the second step surface 36 can also play a secondary guiding role at this position, providing guidance for the shrinking of the valve F in the third section 33.

[0104] Afterwards, further dragging the delivery device connected with the valve F, the valve F can be further contracted in the third section 33 and finally folded into the guide tube 70.

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

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

[0107] (i) The storage device according to the present application can both pre-store the valve and serve as a part of the transfer device during the transfer of the valve.

[0108] (ii) In the case of the need for the transfer of the valve, the storage device can make the valve partially extend by a very simple operation, i.e. pushing the base from the first position to the second position.

[0109] (iii) The ingenious cooperation of the fixing ring and the sliding tube makes the transfer of the valve simple and smooth. The sliding tube can both guide the valve when the valve is initially extended from the compression body and enter the sheathing device when the sheathing device is connected with the compression body; it can both open the passage at the outlet of the compression body at the right time and be used twice in the sheathing device.

[0110] (iv) The hanging ear positioning groove and the positioning part of the push rod can realize the automatic alignment of the valve and the top ring of the delivery device, so that the loading of the valve and the delivery device 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 teaching 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 shape of all the positioning or limiting parts, for example, the ring matching part 41 can also be a concave ring structure, and the corresponding ring matching part 110 can also be a convex structure.

Claims

1. A storage device for a heart intervention valve, characterized in that, The storage device comprises: a compression body (10) in a tubular shape, having a small end and a large end in an axial direction, and an inner cavity for storing a heart intervention 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 the heart intervention valve (F) stored in the inner cavity and preventing the heart intervention valve (F) from falling out of the large end when the compression base (20) is located at the first position, and the compression base (20) being capable of partially pushing the heart intervention valve (F) out of the small end when the compression base (20) is located at the second position; and a slide tube (50) in a tubular shape and having a tapered inner cavity, capable of being fixed at the small end of the inner cavity of the compression body (10) when the locking device is locked, and capable of leaving the inner cavity of the compression body (10) from the small end when the locking device is unlocked. The compression body (10) comprises an outlet cylinder portion (12) located at the small end, the outlet cylinder portion (12) being formed with at least two first slits (12g) extending in the axial direction, and an inner clamping arm (120) being formed between the two first slits (12g), the inner clamping arm (120) applies a force to the slide tube (50) towards the radially inner side to clamp the slide tube (50); the inner clamping arm (120) is expanded towards the radially outer side to release the slide tube (50).

2. The storage device for a heart intervention valve according to claim 1, characterized in that An inner peripheral wall of the inner clamping arm (120) is formed with a tube matching portion (121), an outer peripheral wall of the slide tube (50) is formed with a tube counter-matching portion (51), and the tube matching portion (121) and the tube counter-matching portion (51) are shape-locked.

3. The storage device for a heart intervention valve according to claim 1, characterized in that, The storage device further comprises a fixing ring (40) capable of being sleeved on the outer periphery of the outlet cylinder portion (12) to limit the inner clamping arm (120) from being expanded towards the radially outer side.

4. The storage device for a heart intervention valve according to claim 3, characterized in that The compression body (10) further comprises at least two outer clamping arms (11) located at the outer periphery of the outlet cylinder portion (12), and when the fixing ring (40) is sleeved on the outer periphery of the outlet cylinder portion (12), the fixing ring (40) is located at the inner periphery of the outer clamping arms (11) and is clamped by the outer clamping arms (11).

5. The storage device for a heart intervention valve according to claim 4, characterized in that An inner peripheral wall of the outer clamping arm (11) is formed with a ring matching portion (110), an outer peripheral wall of the fixing ring (40) is formed with a ring counter-matching portion (41), and the ring matching portion (110) and the ring counter-matching portion (41) are shape-locked.

6. The storage device for a heart intervention valve of claim 1, wherein, At least part of the compression body (10) is formed with at least one sliding groove (15) extending in the axial direction, and an outer wall of the compression body (10) is formed with at least one buckle first matching portion (13) and at least one buckle second matching portion (14), The compression base (20) comprises a base body (21) for being accommodated in the inner cavity of the compression body (10) and at least one buckle (22) capable of extending to the outside of the inner cavity through the sliding slot (15), The buckle (22) is engaged with the buckle first matching part (13) when the compression base (20) is in the first position, and the buckle (22) is engaged with the buckle second matching part (14) when the compression base (20) is in the second position.

7. A transfer device for a heart intervention valve, characterized in that, The transfer device comprises the storage device according to any one of claims 1 to 6, and further comprises a tubular sheathing device (30), The sheathing device (30) is connectable to the small end of the compression body (10) and allows the sliding tube (50) to be transferred to the inner cavity of the sheathing device (30).

8. The transfer device of a heart intervention valve according to claim 7, characterized in that, The sheathing device (30) comprises a first section (31), a second section (32) and a third section (33), the inner diameter of the first section (31) is greater than that of the second section (32), and the inner diameter of the second section (32) is greater than that of the third section (33), The first section (31) is used for sleeving 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).

9. The transfer device of a heart intervention valve according to claim 8, characterized in that, The minimum inner diameter of the sliding tube (50) is not greater than the inner diameter of the third section (33).

10. The transfer device of a heart intervention valve according to claim 7, characterized in that, The transfer device further comprises a push rod (60), one end of the push rod (60) in the axial direction is formed into a docking end (60a), and the outer diameter of the docking end (60a) is smaller than the inner diameter of the sliding tube (50), The peripheral wall of the push rod (60) at the docking end (60a) is partially recessed to form a plurality of ear positioning grooves (63), the number and position of the ear positioning grooves (63) are adapted to the ears of the heart interventional valve (F), and the ears can be positioned in the circumferential direction by extending into the ear positioning grooves (63), An end wall of the docking end (60a) is formed with a positioning part (64) capable of being docked with a delivery device of the heart interventional valve.

11. The transfer device of a heart intervention valve according to claim 10, characterized in that, The push rod (60) is hollow in the region close to the docking end (60a), and The docking end (60a) is formed into a bifurcated structure comprising a plurality of leaflets (62), and the plurality of leaflets (62) can be expanded outward in the radial direction under stress.

12. The transfer device of a heart intervention valve according to claim 10, characterized in that, The transfer device further comprises a delivery device, An end of the delivery device is formed with a counterpart of the positioning part (64) and a top ring capable of connecting the ears of the heart interventional valve (F), When the positioning part (64) is docked with the counterpart, the top ring is aligned with the ear positioning grooves (63) in the circumferential direction.

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