CN211535003U - Valve compression device and valve loading system - Google Patents

Abstract

The utility model provides a valve compression device and valve loading system, valve compression device makes a plurality of briquettings switch between first state and second state through the antiport of first runner and second runner, and it encloses synthetic chamber diameter that holds and increases or reduces along with rotating. When holding the chamber diameter great, can put into the valve frame that loads the artificial valve, then change the direction of rotation of first runner and second runner, the diameter that makes the chamber of holding reduces gradually, thereby apply radial pressure to the valve frame that loads the artificial valve, make the artificial valve compression, in whole compression process, it can directly apply radial pressure to the valve frame that loads the artificial valve to hold the chamber, need not to implement to drag the removal to the valve frame, avoid the valve frame fracture, can not cause wearing and tearing to the suture department of valve frame yet, reduce the damage to the artificial valve.

Description

Valve compression device and valve loading system

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a valve compression device and valve loading system.

Background

The transcatheter valve intervention is generally to suture and fix pericardial tissue on a valve frame by using a suture, before intervention valve operation is performed, a valve is loaded and conveyed to a target position by using a specific catheter to release and deploy the valve, and in the process of loading and conveying, damage to a prosthetic valve needs to be reduced as much as possible.

In the prior art, during loading, a valve frame loaded with a prosthetic valve is connected through connecting structures such as claw pieces and the like, the prosthetic valve is dragged to enter a compression tube cavity with a taper inner diameter, the prosthetic valve enters a small port from a large port of the compression tube cavity and exits from the small port, and in the process that the prosthetic valve is dragged, the diameter of the tube is continuously reduced to compress the size of the prosthetic valve, so that the prosthetic valve is conveniently loaded on a conveying system by a prosthetic valve guide catheter. Because the valve frame has strong radial supporting force, the resistance is large in the dragging process of the valve, and the artificial valve, particularly the suture part, can be damaged or even broken.

It can be seen that the existing valve compression device has the problem of great damage to the artificial valve.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a valve compression device and valve loading system to solve current valve compression scheme and have the great problem of artifical valve damage.

In order to solve the technical problem, the embodiment of the utility model provides an adopted following technical scheme:

an embodiment of the utility model provides a valve compression device, valve compression device includes:

the transmission mechanism comprises a first rotating wheel and a second rotating wheel, and the first rotating wheel is embedded in the second rotating wheel and is coaxially arranged with the second rotating wheel;

the compression mechanism comprises a plurality of pressing blocks, the pressing blocks are arranged at intervals along the circumferential direction of the second rotating wheel, each pressing block comprises a first connecting mechanism close to the circle center and a second connecting mechanism far away from the circle center, the first connecting mechanism is connected with the first rotating wheel, and the second connecting mechanism is connected with the second rotating wheel;

the second rotating wheel and the first rotating wheel rotate reversely to drive the plurality of pressing blocks to change between a first state and a second state, and the diameter of an accommodating cavity formed by enclosing the plurality of pressing blocks when the plurality of pressing blocks are in the first state is larger than the diameter of an accommodating cavity formed by enclosing the plurality of pressing blocks when the plurality of pressing blocks are in the second state.

Optionally, a plurality of first upright posts are arranged on the first rotating wheel at intervals, a plurality of second upright posts are arranged on the second rotating wheel at intervals, the first connecting mechanism is a first through hole arranged on the pressing block, and the second connecting mechanism is a second through hole arranged on the pressing block; the first upright posts are inserted into the first through holes in a one-to-one corresponding mode, and the second upright posts are inserted into the second through holes in a one-to-one corresponding mode.

Further, the valve compression device further comprises a first screw and a second screw, the first screw is embedded in the first through hole and connected with the first upright, and the second screw is embedded in the second through hole and connected with the second upright.

Optionally, each of the compacts includes a first face and a second face that are adjacent to each other, the first face of the first compact is in contact with the second face of the second compact, and when the plurality of compacts are changed between the first state and the second state, the first face slides on the second face;

the first pressing block and the second pressing block are two pressing blocks which are arbitrarily adjacent to each other in the plurality of pressing blocks.

Further, the first surface is a smooth surface, and the second surface is a frosted surface.

Optionally, the compressing mechanism further comprises a spring ring, and the spring ring is sleeved on the plurality of pressing blocks.

Optionally, the transmission mechanism is connected to a motor, and the motor drives the first rotating wheel and the second rotating wheel to rotate in opposite directions.

The embodiment of the utility model provides a valve loading system is still provided, valve loading system includes the valve compression device that the embodiment of the utility model provides.

Optionally, the valve loading system further comprises a pushing rod for pushing the valve into the delivery catheter when the valve is accommodated in the accommodating cavity.

Furthermore, the valve loading system further comprises a handle, a groove is formed in the handle, and the conveying conduit is clamped in the groove.

Further, the conveying conduit comprises a first connecting part close to the accommodating cavity and a second connecting part far away from the accommodating cavity, and the diameter of the first connecting part is larger than that of the second connecting part;

the groove comprises a first groove and a second groove which are communicated, the first connecting portion is clamped in the first groove, and the second connecting portion is clamped in the second groove.

Further, the valve loading system further comprises an adapter connected to one end of the delivery catheter and embedded in the receiving cavity, wherein the interior of the adapter is tapered.

The embodiment of the utility model provides a valve compression device and valve loading system, valve compression device makes a plurality of briquettings switch between first state and second state through the antiport of first runner and second runner, and it encloses synthetic chamber diameter that holds and increases or reduces along with rotating. When holding the chamber diameter great, can put into the valve frame that loads the artificial valve, then change the direction of rotation of first runner and second runner, the diameter that makes the chamber of holding reduces gradually, thereby apply radial pressure to the valve frame that loads the artificial valve, make the artificial valve compression, in whole compression process, it can directly apply radial pressure to the valve frame that loads the artificial valve to hold the chamber, need not to implement to drag the removal to the valve frame, avoid the valve frame fracture, can not cause wearing and tearing to the suture department of valve frame yet, reduce the damage to the artificial valve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is an exploded view of a valve compression device according to an embodiment of the present invention;

fig. 2 is a front view of a valve compression device according to an embodiment of the present invention;

fig. 3 is a perspective view of a valve compression device provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of a pressing block of a valve compressing device according to an embodiment of the present invention;

FIG. 5 is a plan view of a plurality of compacts in a valve compression device according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a valve loading system according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a push rod in a valve loading system according to an embodiment of the present invention;

fig. 8 is a cross-sectional view of a delivery catheter in a valve loading system according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a handle of a valve loading system according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of a handle of a valve loading system according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of an adapter assembly in a valve loading system according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Embodiments of the present invention provide a valve compression device 100, as shown in fig. 1-5.

The valve compression device 100 includes:

the transmission mechanism 110, the transmission mechanism 110 includes a first rotating wheel 111 and a second rotating wheel 112, the first rotating wheel 111 is embedded in the second rotating wheel 112 and is coaxially arranged with the second rotating wheel 112;

the compressing mechanism 120 comprises a plurality of pressing blocks 121, the pressing blocks 121 are arranged at intervals along the circumferential direction of the first rotating wheel 111, each pressing block 121 comprises a first connecting mechanism close to the circle center and a second connecting mechanism far away from the circle center, the first connecting mechanism is connected with the first rotating wheel 111, and the second connecting mechanism is connected with the second rotating wheel 112;

the second rotating wheel 121 and the first rotating wheel 111 rotate in opposite directions to drive the plurality of pressing blocks 121 to change between the first state and the second state, and the diameter of the accommodating cavity 130 formed by enclosing the plurality of pressing blocks 121 in the first state is larger than the diameter of the accommodating cavity 130 formed by enclosing the plurality of pressing blocks 121 in the second state.

The first connecting mechanism and the second connecting mechanism may be threaded connecting mechanisms, and two ends of each pressing block 121 may be connected to the first rotating wheel 111 and the second rotating wheel 112 through fixing members such as screws, respectively; the first connecting mechanism and the second connecting mechanism may also be buckle connecting mechanisms, and two ends of each pressing block 121 may be connected to the first rotating wheel 111 and the second rotating wheel 112 through the cooperation of a buckle and a clamping groove, and may be specifically set according to actual needs, which is not limited herein.

It should be noted that, as shown in fig. 1, in the embodiment of the present invention, the number of the pressing blocks 121 is 7, and in practical application, the number of the pressing blocks can be specifically set as required, and can be 6 to 12, which is not limited herein.

In the embodiment of the present invention, the transmission mechanism 110 includes a first rotating wheel 111 and a second rotating wheel 112 coaxially disposed, a plurality of pressing blocks 121 are disposed along the circumferential direction of the second rotating wheel 112 at intervals, and one end of the pressing blocks, which is close to the center of the circle, can be enclosed into a containing cavity 130, as shown in fig. 2. Because the end of each pressing block 121 close to the center of the circle is connected to the first rotating wheel 111 through the first connecting mechanism, and the end far away from the center of the circle is connected to the second rotating wheel 112 through the second connecting mechanism, when the first rotating wheel 111 and the second rotating wheel 112 rotate in opposite directions, the two ends of the pressing blocks 121 will rotate in opposite directions, the relative position between the pressing blocks 121 will change, switching between the first state and the second state, and the diameter of the accommodating cavity 130 formed by enclosing the pressing blocks 121 when in the first state is larger than the diameter of the accommodating cavity 130 formed by enclosing the pressing blocks 121 when in the second state, that is, the diameter of the accommodating cavity 130 will gradually increase or decrease.

In practical application, the first rotating wheel 111 and the second rotating wheel 112 are controlled to rotate reversely, so that when the diameter of the accommodating cavity 130 is gradually increased to accommodate a valve frame loaded with a prosthetic valve, the valve frame can be placed in the accommodating cavity, then the rotating directions of the first rotating wheel 111 and the second rotating wheel 112 are respectively changed to gradually reduce the diameter of the accommodating cavity 130, and in the process, the accommodating cavity 130 applies radial pressure to the valve frame to compress the prosthetic valve until the prosthetic valve is compressed to a size suitable for loading, so that the prosthetic valve can be stopped.

The embodiment of the present invention provides a valve compression device 100, which switches a plurality of pressing blocks 121 between a first state and a second state through the reverse rotation of the first rotating wheel 111 and the second rotating wheel 112, and the diameter of the enclosed accommodating cavity 130 increases or decreases along with the rotation. When holding chamber 130 diameter great, can put into the valve frame that loads with prosthetic valve, then change first runner 111 and second runner 112's direction of rotation, the diameter that makes and hold chamber 130 reduces gradually, thereby apply radial pressure to the valve frame that loads with prosthetic valve, make the prosthetic valve compression, in whole compression process, it can directly apply radial pressure to the valve frame that loads with prosthetic valve to hold chamber 130, need not to implement to drag the removal to the valve frame, avoid the valve frame fracture, can not cause wearing and tearing to the suture department of valve frame yet, reduce the damage to prosthetic valve.

Optionally, a plurality of first upright posts 113 are arranged on the first rotating wheel 111 at intervals, a plurality of second upright posts 114 are arranged on the second rotating wheel 112 at intervals, the first connecting mechanism is a first through hole 122 arranged on the pressing block 121, and the second connecting mechanism is a second through hole 123 arranged on the pressing block 121; the first posts 113 are inserted into the first through holes 122 in a one-to-one correspondence, and the second posts 114 are inserted into the second through holes 123 in a one-to-one correspondence.

In this embodiment, the first connecting mechanism is a first through hole 122 disposed on the pressing block 121, the second connecting mechanism is a second through hole 123 disposed on the pressing block 121, the first upright posts 113 may be inserted into the first through holes 122 in a one-to-one correspondence, and the second upright posts 114 may be inserted into the second through holes 123 in a one-to-one correspondence, so that two ends of the pressing blocks 121 are respectively and fixedly connected to the first rotating wheel 111 and the second rotating wheel 112, and simultaneously can respectively rotate around the first upright posts 113 and the second upright posts 114, based on which the first rotating wheel 111 and the second rotating wheel 112 can drive the pressing blocks 121 to switch between the first state and the second state.

Further, the valve compressing device 100 further includes a first screw 124 and a second screw 125, the first screw 124 is inserted into the first through hole 122 and connected to the first post 113, and the second screw 125 is inserted into the second through hole 123 and connected to the second post 114.

In this embodiment, the first screw 124 may be embedded into the first through hole 122 to be connected to the first column 113, so as to limit the first column 113 from moving relatively in the first through hole 122, the second screw 125 may be embedded into the second through hole 123 to be connected to the second column 114, so as to limit the second column 114 from moving relatively in the second through hole 123, so as to ensure that the pressing block 121 maintains a tight fit during the rotation process with the first and second rotating wheels 111 and 112, so as to prevent the accommodating cavity 130 from deforming, and only reduce the diameter or increase the diameter in the same proportion, so that the artificial valve is stressed more uniformly during the compression process.

Optionally, as shown in fig. 4, each compact 121 includes a first face 1211 and a second face 1212 that are adjacent, the first face 1211 of the first compact contacts the second face 1212 of the second compact, and the first face 1211 slides on the second face 1212 when the plurality of compacts 121 are shifted between the first state and the second state; the first pressing block and the second pressing block are any two adjacent pressing blocks in the plurality of pressing blocks 121.

In this embodiment, the pressing blocks 121 form a first surface 1211 at an end near the center of the circle, the first surface 1211 is inclined to form an acute angle with the second surface 1212, and the first surface 1211 of each pressing block contacts with the second surface 1212 of its adjacent pressing block, so that the accommodating cavity 130 is a regular polygon (as shown in fig. 5). The shorter the side length of the regular polygon is, the larger the number of the pressing blocks 121 is, and the accommodating chamber 130 may approach to a circular shape. When the pressing blocks 121 are changed between the first state and the second state, the first face 1211 can slide on the second face 1212, that is, the first face 1211 and the second face 1212 are always kept in a contact state, so that the accommodating cavity 130 does not have a gap, and the artificial valve is not pulled or scratched in the compression process, thereby further reducing the damage to the artificial valve.

It should be noted that, due to the space limitation of the first rotating wheel 111 and the second rotating wheel 112, as described in the above embodiment, the number of the pressing blocks 121 may be selected from 6 to 12.

Further, the first surface 1211 is a smooth surface, and the second surface 1212 is a frosted surface.

In this embodiment, the smooth first surface 1211 and the frosted second surface 1212 have a suitable friction force, so as to avoid the damage of the prosthetic valve caused by excessive compression due to a small resistance force during the rotation of the first rotating wheel 111 and the second rotating wheel 112 caused by a small friction force, or avoid the damage of the prosthetic valve caused by a large resistance force during the rotation of the first rotating wheel 111 and the second rotating wheel 112 caused by an excessive friction force, which makes the compression process inflexible.

Optionally, the compressing mechanism 120 further includes a spring ring 126, and the spring ring 126 is sleeved on the pressing blocks 121.

In this embodiment, the plurality of pressing blocks 121 are sleeved with the spring ring 126, and in the process of the reverse rotation of the first rotating wheel 111 and the second rotating wheel 112, the plurality of pressing blocks 121 are limited by the elastic potential energy of the spring ring 126, so that the plurality of pressing blocks 121 are kept close to the center of a circle all the time under the action of the elastic force, and the holding cavity 130 is not separated from each other to generate a gap. The press blocks 121 can be provided with clamping grooves 1213, as shown in fig. 4, the spring ring 126 can be clamped in the clamping grooves 1213, and the spring ring 126 can be prevented from moving during the rotation process.

Optionally, the transmission mechanism 110 is connected to a motor, and the motor drives the first rotating wheel 111 and the second rotating wheel 112 to rotate in opposite directions.

In this embodiment, the transmission mechanism 110 may be connected to a motor, and the motor drives the first rotating wheel 111 and the second rotating wheel 112 to rotate in opposite directions, further, the transmission mechanism 110 may be connected to a servo motor, and it should be noted that the transmission mechanism 110 may also be controlled by a hand to realize the opposite rotation of the first rotating wheel 111 and the second rotating wheel 112, which is not limited herein.

In summary, the valve compression device 100 provided by the embodiment of the present invention switches the plurality of pressing blocks 121 between the first state and the second state through the reverse rotation of the first rotating wheel 111 and the second rotating wheel 112, and the diameter of the enclosed accommodating cavity 130 increases or decreases along with the rotation. When holding chamber 130 diameter great, can put into the valve frame that loads with prosthetic valve, then change first runner 111 and second runner 112's direction of rotation, the diameter that makes and hold chamber 130 reduces gradually, thereby apply radial pressure to the valve frame that loads with prosthetic valve, make the prosthetic valve compression, in whole compression process, it can directly apply radial pressure to the valve frame that loads with prosthetic valve to hold chamber 130, need not to implement to drag the removal to the valve frame, avoid the valve frame fracture, can not cause wearing and tearing to the suture department of valve frame yet, reduce the damage to prosthetic valve.

Embodiments of the present invention also provide a valve loading system, as shown in fig. 6.

The valve loading system includes a valve compression device 100 provided by embodiments of the present invention.

The embodiment of the utility model provides an in, can directly exert radial pressure to the valve frame that loads the artificial valve through valve compression device 100, need not to implement to pull the removal to the valve frame, avoid the valve frame fracture, can not cause wearing and tearing to the suture department of valve frame yet, reduce the damage to the artificial valve.

Optionally, the valve loading system further comprises a delivery catheter 200, the delivery catheter 200 being embedded in the receiving lumen 130.

In this embodiment, the delivery catheter 200 is inserted into the receiving cavity 130, and when the valve compression device 100 compresses the prosthetic valve to a size suitable for loading, the valve compression device 100 can be loaded into the delivery catheter 200 from the receiving cavity 130, and the prosthetic valve is delivered to the target site through the delivery catheter 200 for release deployment of the valve, it being understood that the diameter of the last compression of the prosthetic valve is smaller than the inner diameter of the delivery catheter 200.

Further, the valve loading system further comprises a pushing rod 300, and in the case that the valve is accommodated in the accommodating cavity 130, the pushing rod 300 is used for pushing the valve into the delivery catheter 200.

In this embodiment, after the valve compressing device 100 compresses the prosthetic valve to a size suitable for loading, the pushing rod 300 can be used to push the prosthetic valve into the delivery catheter 200 along the axial direction, which is convenient for the operator to operate. As shown in fig. 7, the push rod 300 may include a first rod portion 310 with a larger diameter and a second rod portion 320 with a smaller diameter, the outer diameter of the second rod portion 320 is smaller than the diameter of the accommodating cavity 130 after final compression, and is smaller than the inner diameter of the delivery catheter 200, so as to facilitate the insertion into the accommodating cavity 130 and the delivery catheter 200 for delivery of the prosthetic valve, and the diameter of the first rod portion 310 is larger so as to facilitate the handling by the operator.

Optionally, the valve loading system further comprises a handle 400, a groove 410 is formed on the handle 400, and the delivery catheter 200 is clamped in the groove 410.

In this embodiment, for the convenience of personnel operation, can set up a handle 400 on conveying pipe 200 and supply the operating personnel to hand, in operation process, the handheld handle 400 of staff keeps conveying pipe 200 fixed, guarantees conveying pipe 200 and holds the chamber 130 coaxial, recycles push rod 300 and pushes away conveying pipe 200 with the prosthetic valve, avoids the prosthetic valve to take place radial movement at the in-process of being pushed into conveying pipe 200, causes unnecessary damage.

Further, as shown in fig. 6 and 8, the delivery catheter 200 includes a first connecting portion 210 close to the accommodating chamber 130 and a second connecting portion 220 far from the accommodating chamber 130, the first connecting portion 210 having a larger diameter than the second connecting portion 220;

as shown in fig. 9 and 10, the recess 410 includes a first recess 411 and a second recess 412 that are connected to each other, the first connecting portion 210 is clamped in the first recess 411, and the second connecting portion 220 is clamped in the second recess 412.

In this embodiment, the diameter of the first connecting portion 210 of the delivery catheter 200 close to the accommodating cavity 130 is larger than the diameter of the second connecting portion 220, and when the prosthetic valve is delivered in the delivery catheter 200, the second connecting portion 220 can further compress the prosthetic valve, as shown in fig. 7, the two portions can smoothly transition through a tapered connecting portion, so as to reduce the resistance of the prosthetic valve when passing through the tapered connecting portion, and reduce the damage to the prosthetic valve. In addition, in order to match the above structure of the delivery catheter 200, in the embodiment, as shown in fig. 8 and 9, the groove 410 formed on the handle 400 also includes a first groove 411 and a second groove 412 which are communicated with each other, so that the delivery catheter 200 is clamped in the groove 410 without radial deflection, and the artificial valve is prevented from moving radially in the process of being pushed into the delivery catheter 200, which causes unnecessary damage.

Optionally, as shown in fig. 8, the valve loading system further comprises an adapter 500, the adapter 500 is connected to one end of the delivery catheter 200, the adapter 500 is embedded in the accommodating cavity 130, and the inside of the adapter 500 is tapered.

In this embodiment, a straight-tube type adapter 500 is used to connect the accommodating cavity 130 and one end of the delivery catheter 200, and the interior of the adapter 500 is tapered, as shown in fig. 11, the tapered slope design is convenient for assisting the prosthetic valve to be smoothly loaded into the delivery catheter 200 from the accommodating cavity 130.

With reference to fig. 1 to 11, the following describes the process of compressing and loading the artificial valve in the embodiment of the present invention specifically:

in this embodiment, the number of the pressing blocks 121 is 7, the number of the corresponding first upright post 113 and the number of the corresponding second upright post 114 are also 7, and the accommodating cavity 130 formed by enclosing the pressing blocks 121 is a regular heptagon.

Firstly, when the first rotating wheel 111 rotates counterclockwise and the second rotating wheel 112 rotates clockwise, one end of the pressing blocks 121 close to the center of the circle rotates counterclockwise along with the first rotating wheel 111, one end of the pressing blocks 121 far from the center of the circle rotates clockwise along with the second rotating wheel 112, the pressing blocks 121 gradually change from the second state to the first state, and the diameter of the accommodating cavity 130 increases. At this point, the valve frame loaded with the prosthetic valve may be placed.

Then, when the first rotating wheel 111 rotates clockwise and the second rotating wheel 112 rotates counterclockwise, one end of the pressing blocks 121 close to the center of the circle rotates clockwise along with the first rotating wheel 111, one end of the pressing blocks 121 far away from the center of the circle rotates counterclockwise along with the second rotating wheel 112, the pressing blocks 121 gradually change from the first state to the second state, the diameter of the accommodating cavity 130 decreases, in the process, the accommodating cavity 130 compresses the artificial valve loaded in the valve frame, and the artificial valve is compressed to a size suitable for loading and can be stopped.

In this embodiment, when the prosthetic valve is compressed to half the size of the original state, the head end of the second rod part 320 of the push rod 300 can be embedded into the accommodating cavity 130 to limit the minimum diameter of the accommodating cavity 130, so as to prevent the prosthetic valve from being compressed excessively.

After the prosthetic valve is compressed to a size suitable for loading, the handle 400 can be installed, and the delivery catheter 200 can be inserted into the groove 410 of the handle 400, so that the operator can conveniently grip the prosthetic valve to complete the subsequent delivery of the prosthetic valve, and meanwhile, the delivery catheter 200 and the accommodating cavity 130 are kept coaxial and do not generate radial deflection. The push rod 300 is then used to push the prosthetic valve axially into the delivery catheter 200, and during the pushing process, the coaxiality of the push rod 300, the accommodating cavity 130 and the delivery catheter 200 is maintained. After the prosthetic valve is advanced into the delivery catheter 200, the push rod 300 is withdrawn and the handle 400 is removed. Completing the process of compressing and loading the artificial valve.

To sum up, the embodiment of the utility model provides a valve loading system, include the utility model provides a valve compression device 100 can directly exert radial pressure to the valve frame that loads the artificial valve through valve compression device 100, need not to implement to the valve frame and pull the removal, avoids the valve frame fracture, can not cause wearing and tearing to the suture department of valve frame yet, reduces the damage to the artificial valve.

It should be noted that various optional embodiments described in the embodiments of the present invention may be implemented by combining with each other or by implementing them separately, and the embodiments of the present invention are not limited thereto.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiments described above are described with reference to the drawings, and various other forms and embodiments are possible without departing from the principles of the present invention, and therefore, the present invention should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of components may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. The terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, components, and/or components, but do not preclude the presence or addition of one or more other features, integers, components, and/or groups thereof. Unless otherwise indicated, a range of values, when stated, includes the upper and lower limits of the range and any subranges therebetween.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims (13)

1. A valve compression device, comprising:

the transmission mechanism comprises a first rotating wheel and a second rotating wheel, and the first rotating wheel is embedded in the second rotating wheel and is coaxially arranged with the second rotating wheel;

the compression mechanism comprises a plurality of pressing blocks, the pressing blocks are arranged at intervals along the circumferential direction of the second rotating wheel, each pressing block comprises a first connecting mechanism close to the circle center and a second connecting mechanism far away from the circle center, the first connecting mechanism is connected with the first rotating wheel, and the second connecting mechanism is connected with the second rotating wheel;

the second rotating wheel and the first rotating wheel rotate reversely to drive the plurality of pressing blocks to change between a first state and a second state, and the diameter of an accommodating cavity formed by enclosing the plurality of pressing blocks when the plurality of pressing blocks are in the first state is larger than the diameter of an accommodating cavity formed by enclosing the plurality of pressing blocks when the plurality of pressing blocks are in the second state.

2. The valve compression device of claim 1, wherein the first rotating wheel is provided with a plurality of first posts at intervals, the second rotating wheel is provided with a plurality of second posts at intervals, the first connecting mechanism is a first through hole arranged on the pressing block, and the second connecting mechanism is a second through hole arranged on the pressing block; the first upright posts are inserted into the first through holes in a one-to-one corresponding mode, and the second upright posts are inserted into the second through holes in a one-to-one corresponding mode.

3. The valve compression device of claim 2, further comprising a first screw embedded in the first through-hole and coupled to the first post and a second screw embedded in the second through-hole and coupled to the second post.

4. The valve compression device of claim 1, wherein each of the compacts includes first and second faces that are adjacent, the first face of a first compact being in contact with the second face of a second compact, and the first face sliding over the second face as the compacts transition between the first and second states;

the first pressing block and the second pressing block are two pressing blocks which are arbitrarily adjacent to each other in the plurality of pressing blocks.

5. The valve compression device of claim 4, wherein the first face is a smooth face and the second face is a frosted face.

6. The valve compression device of claim 1, wherein the compression mechanism further comprises a spring ring disposed over the plurality of compression blocks.

7. The valve compression device of claim 1, wherein the transmission mechanism is coupled to a motor that drives the first and second wheels in opposite directions.

8. A valve loading system comprising the valve compression device of any one of claims 1-7.

9. The valve loading system of claim 8, further comprising a delivery catheter embedded in the receiving lumen.

10. The valve loading system of claim 9, further comprising a push rod for pushing a valve into the delivery catheter with the valve received in the receiving lumen.

11. The valve loading system of claim 9, further comprising a handle having a recess defined therein, wherein the delivery catheter is captured within the recess.

12. The valve loading system of claim 11, wherein the delivery catheter includes a first connection portion proximal to the receiving lumen and a second connection portion distal to the receiving lumen, the first connection portion having a larger diameter than the second connection portion;

the groove comprises a first groove and a second groove which are communicated, the first connecting portion is clamped in the first groove, and the second connecting portion is clamped in the second groove.

13. The valve loading system of claim 9, further comprising an adapter connected to an end of the delivery catheter and embedded in the receiving cavity, an interior of the adapter being tapered.

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