CN111982667A - Heart valve clamp - Google Patents

Abstract

The present application discloses a heart valve clamp, comprising a mounting seat and three fixing seats, the mounting seat includes a through hole, the cross-section of the mounting seat is circular, and the side wall of the mounting seat is provided with three connecting seats that communicate with the through hole The three openings are evenly distributed along the circumference of the mounting seat, and the mounting seat is provided with a card slot; It is arc-shaped, and the diameter corresponding to the fixing block is equal to the diameter corresponding to the mounting seat, so that the inner wall of the fixing block fits the inner wall of the mounting seat, the first end of the clamping block is slidably connected with the fixing block, and the clamping block is along the mounting seat. The radial direction slides relative to the fixing block, the second end of the clamping block is clamped in the clamping groove, and when the clamping block is close to the inner side of the fixing block, the clamping block can leave the clamping groove. The heart valve clamp disclosed by the invention is simple in structure and low in cost, can realize rapid installation and disassembly of the heart valve, and can be used repeatedly.

Description

A heart valve clamp

technical field

The present application relates to the technical field of heart valves, in particular, to a heart valve clamp.

Background technique

The artificial heart valve is a medical device used to replace the human diseased valve, and its application has been increasing year by year in recent years. In the process of research and development of artificial heart valve materials and devices, it is necessary to carry out fatigue resistance tests to verify the fatigue times that they can withstand. Existing industry standards require that the artificial heart valve developed in vitro simulates more than 200 million fatigue times.

At present, scientific research institutions or enterprises perform fatigue tests on valve products, and generally need to artificially sew the valve leaflet material to the valve frame with special sutures. The cycle of manual sewing is long, and it usually takes several days to complete, which prolongs the cycle of product development and increases the labor cost and material cost of research and development.

SUMMARY OF THE INVENTION

The present application discloses a heart valve clamp to improve the problem of long installation period of the existing fixed structure.

The present invention is specifically as follows:

Based on the above purpose, the present invention discloses a heart valve clamp, comprising:

The mounting seat, the mounting seat includes a through hole, the cross section of the mounting seat is circular, the side wall of the mounting seat is provided with three openings that communicate with the through hole, and the three openings are along the The circumferential direction of the mounting seat is evenly distributed, and the mounting seat is provided with a slot at the opening;

Three fixing bases, the three fixing bases are installed in the three openings in a one-to-one correspondence, the fixing bases include a fixing block and a clamping block, the fixing blocks are arc-shaped, and the corresponding fixing blocks are The diameter is equal to the diameter corresponding to the mounting seat so that the inner wall of the fixing block fits with the inner wall of the mounting seat, the first end of the clamping block is slidably connected with the fixing block, and the clamping block is along the The radial direction of the mounting seat slides relative to the fixing block, the second end of the clamping block is clamped in the clamping slot, and when the clamping block is close to the inner side of the fixing block, the The snap block can leave the snap slot.

After the fixing seat of the heart valve clamp disclosed in the present invention is installed on the installation seat, the heart valve clamp will form a tubular structure. One end of the installation seat is the first end, and the other end of the installation seat is the second end. The valve can be directly installed between the mounting seat and the fixed seat, and after the installation is completed, the heart valve will bulge towards the first end of the mounting seat, the heart valve is installed like this, first place the heart valve in the opening, three Three heart valves can be placed in the opening respectively, and then the fixing seat is clamped down. When the fixing seat and the mounting seat are fixed, the heart valve is fixed. The three heart valves are evenly arranged along the circumference of the mounting seat. A heart-like structure is formed, and the heart valve can be subjected to fatigue testing at this time. The heart valve clamp has a simple structure and low cost, can realize rapid installation and disassembly of the heart valve, and can be used repeatedly.

In some implementations of this embodiment, the second end of the clamping block is provided with a first inclined surface, the first inclined surface is located outside the clamping block, and the first inclined surface faces along the fixing block. The direction of the mounting seat is inclined inward, and the mounting seat is provided with a second inclined surface matched with the first inclined surface.

The cooperation of the first inclined surface and the second inclined surface can make the installation easier and faster. When installing, align the clamping block with the slot, and then make the fixing seat close to the mounting seat. When the first inclined surface is in contact with the second inclined surface, The second inclined plane pushes the clamping block to move toward the inner side of the fixing block, and when the clamping block completely enters the clamping slot, the clamping block moves toward the outside of the fixing block, which can realize the clamping between the clamping block and the mounting seat. The fixing between the fixing base and the mounting base needs to be disassembled by pushing the clamping block to move the clamping block toward the inner side of the fixing block.

In some implementations of this embodiment, the fixing base further includes an elastic member, the elastic member is installed between the fixing block and the clamping block, and the elastic member causes the clamping block to have a direction The tendency of the outside of the fixed block to move.

One end of the elastic piece is in contact with the fixing block, and the other end of the elastic piece can be in contact with the center of the clamping block, which can make the force of the clamping block more uniform and avoid the shifting of the clamping block when sliding. In addition, in this embodiment, the elastic member may be a spring in a compressed state, which is easy to install and has a long service life. Of course, in other embodiments, the elastic member is provided with a rubber block or other elastic structures it is also fine.

In some implementations of this embodiment, the sidewall of the opening is inclined, the sidewall of the opening is inclined toward the outside, and the edge of the fixing block is arranged corresponding to the sidewall of the opening.

At this time, the side wall of the opening is higher on the side close to the through hole, and the side wall of the opening is in an everted structure. When the heart valve is installed, the heart valve will bulge toward the first end of the mounting seat, and the side wall of the opening is inclined. The setting can reduce the deformation of the heart valve during installation, thereby reducing the impact on the heart valve and improving the accuracy of the test. In addition, the side wall with the opening inclined can be matched with the clamping block. In the process of getting to the mounting seat, the elastic member causes the snap block to move toward the outside. When the first slope is in contact with the second slope, correspondingly, the second slope also causes the snap block and the fixing block to move toward the inside. The inclined side wall of the opening can limit the fixing block and prevent the fixing block from moving inward. Fix the position of the fixed seat and the mounting seat.

In some implementations of this embodiment: a button is provided on the snap block, the button is located at the center of the snap block, a first hole and a second hole are provided on the fixing block, the The first hole extends toward one end of the mounting seat to the end surface of the fixing block, the snap-on block and the elastic member are located in the first hole, and the second hole is located outside the fixing block The second hole communicates with the first hole, the button is located in the second hole, and the end face of the end of the button facing away from the clamping block is flush with the outer side wall of the fixing block.

Pressing the part of the button located in the second hole can push the clamping block to move towards the inner side of the fixed block. Setting the button in the center of the clamping block can make the clamping block more evenly stressed when it is pushed. Avoid tilting, and this setting allows the button to be located at the position of the fixing block close to the mounting seat, which is more convenient when disassembling; the heart valve clamp is mainly used for fatigue testing of the heart valve, so that the button part protrudes from the surface of the fixing block, which can make Heart valve clamps work better with other test structures.

In some implementations of this embodiment, the card slot is located at the bottom of the opening.

When the fixing seat is installed on the mounting seat, the fixing seat is directly clipped into the opening along the direction of the first end of the mounting seat toward the second end, and the slot is arranged at the bottom of the opening, which is more convenient to install.

In some implementations of this embodiment: the fixing block includes a fixing line and a transition line, the fixing line is arc-shaped, and the fixing line is coincident with the edge of the opening, and the two ends of the fixing line are respectively connected with the transition line.

The projection of the fixed line on the radial direction of the mounting seat is a curve, and in order to better install the heart valve and allow the heart valve to be tested better, the projection of the fixed line on the radial direction of the mounting seat can be half a half. The ellipse is the shape corresponding to the long axis of the half ellipse; the projection of the transition line on the radial direction of the mounting seat is a straight line, and its two ends are respectively connected with the two ends of the fixed line, and the transition line is in the axial direction of the mounting seat. The projection is a curve, and the diameter of the circle corresponding to the curve is equal to the diameter of the mounting seat, so that the mounting seat can just form a tubular structure after being mounted on the mounting seat.

In some implementations of this embodiment, the ends of the two adjacent fixing bases facing away from the mounting base are abutted against each other.

The projection of the transition line on the axial direction of the mounting seat can be a third of a circle. After the three fixing seats are respectively installed on the mounting seat, the abutment can be formed between the two adjacent fixing seats. Two adjacent heart valves can also touch each other without overlapping, which is convenient for testing.

In some implementations of this embodiment, a positioning column is provided in the fixing block, the positioning column is arranged along the radial direction of the mounting seat, and the positioning column is located at a position where the slot is away from the mounting seat. At one end, the clamping block is provided with a positioning hole, and the positioning post is clamped in the positioning hole.

The clamping block and the positioning column are slidably connected, and the clamping block can slide relative to the positioning column. When the fixing seat is installed, the interaction between the first inclined surface and the second inclined surface makes the end of the clamping block protruding from the fixing block to be received. force, and slide relative to the fixed block. At this time, due to its uneven force, it may tilt when moving, which will lead to weak connection. Setting the positioning column can limit the sliding path of the clamping block, which can effectively avoid The snap block is offset when moved.

In some implementations of this embodiment: the height of the fixing block is half of the height of the mounting seat.

After the heart valve is installed between the fixing seat and the mounting seat, one end of the heart valve can be completely located in the heart valve clamp, and the other end of the heart valve is just located in the middle position of the through hole.

Compared with the prior art, the beneficial effects realized by the present invention are:

After the fixing seat of the heart valve clamp disclosed in the present invention is installed on the installation seat, the heart valve clamp will form a tubular structure. One end of the installation seat is the first end, and the other end of the installation seat is the second end. The valve can be directly installed between the mounting seat and the fixed seat, and after the installation is completed, the heart valve will bulge towards the first end of the mounting seat, the heart valve is installed like this, first place the heart valve in the opening, three Three heart valves can be placed in the opening respectively, and then the fixing seat is clamped down. When the fixing seat and the mounting seat are fixed, the heart valve is fixed. The three heart valves are evenly arranged along the circumference of the mounting seat. A heart-like structure is formed, and the heart valve can be subjected to fatigue testing at this time. The heart valve clamp has a simple structure and low cost, can realize rapid installation and disassembly of the heart valve, and can be used repeatedly.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 shows a schematic diagram of the installation of the heart valve clamp disclosed in Embodiment 1 of the present invention;

2 shows a schematic diagram of the heart valve clamp disclosed in Embodiment 1 of the present invention;

3 shows an exploded view of the heart valve clamp disclosed in Embodiment 1 of the present invention;

FIG. 4 shows a schematic diagram of the mounting seat disclosed in Embodiment 1 of the present invention;

FIG. 5 shows a schematic diagram of the fixing base disclosed in Embodiment 1 of the present invention;

6 shows a cross-sectional view of the heart valve clamp disclosed in Embodiment 1 of the present invention;

7 shows a cross-sectional view of the mounting seat disclosed in Embodiment 1 of the present invention;

8 shows a cross-sectional view of the fixing base disclosed in Embodiment 1 of the present invention;

FIG. 9 shows a cross-sectional view of the fixing block disclosed in Embodiment 1 of the present invention;

FIG. 10 shows a cross-sectional view of the clamping block disclosed in Embodiment 1 of the present invention.

In the picture:

100-mounting seat; 110-through hole; 120-opening; 130-card slot; 140-side wall; 150-second slope; 200-fixed seat; 210-fixed block; 211-transition line; 212-fixed line; 213-first hole; 214-second hole; 215-positioning post; 220-clamping block; 221-button; 222-first bevel; 223-positioning hole; 300-heart valve.

Detailed ways

The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Thus, the following detailed description of the embodiments of the application disclosed in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the application is usually placed in use, or the Orientation or positional relationship that is commonly understood by those skilled in the art, or the orientation or positional relationship that the product of the application is commonly placed in use, is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must be It has a specific orientation, is constructed and operates in a specific orientation, and therefore should not be construed as a limitation of the present application. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "installation" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, or a It is a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood in specific situations.

Example:

Referring to FIGS. 1 to 10 , an embodiment of the present invention discloses a heart valve clamp, which includes a mounting seat 100 and three fixing seats 200 .

The mounting seat 100 includes a through hole 110 , the cross section of the mounting seat 100 is circular, and three openings 120 communicate with the through hole 110 are provided on the side wall of the mounting seat 100 , and the three openings 120 are along the circumferential direction of the mounting seat 100 . Evenly distributed, the mounting base 100 is provided with a slot 130 at the opening 120; the three fixing bases 200 are installed in the three openings 120 in a one-to-one correspondence, the fixing base 200 includes a fixing block 210 and a clamping block 220, and the fixing block 210 is an arc and the diameter corresponding to the fixing block 210 is equal to the diameter corresponding to the mounting seat 100 so that the inner wall of the fixing block 210 fits with the inner wall of the mounting seat 100, the first end of the clamping block 220 is slidably connected with the fixing block 210, and the clamping block 220 slides relative to the fixing block 210 along the radial direction of the mounting seat 100, the second end of the clamping block 220 is clamped in the clamping slot 130, and when the clamping block 220 is close to the inner side of the fixing block 210, the clamping block 220 can leave Card slot 130 .

After the fixing base 200 of the heart valve clamp disclosed in this embodiment is installed on the installation base 100, the heart valve clamp forms a tubular structure. For the second end, the heart valve 300 can be directly installed between the mounting seat 100 and the fixing seat 200, and after the installation is completed, the heart valve 300 will bulge toward the first end of the mounting seat 100, and the heart valve 300 is installed in this way , first place the heart valve 300 in the opening 120, three heart valves 300 can be placed in the three openings 120 respectively, and then the fixing seat 200 is clamped down, when the fixing seat 200 and the mounting seat 100 are fixed, it is realized. For the fixation of the heart valve 300, the three heart valves 300 are evenly arranged along the circumference of the mounting seat 100 to form a structure similar to the heart. At this time, the heart valve 300 can be subjected to a fatigue test. The heart valve clamp has a simple structure and low cost. , the heart valve 300 can be quickly installed and removed, and can be used repeatedly.

The heart valve fixture disclosed in this embodiment can be used for fatigue performance testing of various valve leaflet materials, including animal pericardium, animal heart valve 300 leaflets, and synthetic polymer valve leaflet materials. Can be used for fatigue test validation of interventional or open surgical valves.

It should be noted that, in this embodiment, after the fixing seat 200 is mounted on the mounting seat 100 and the heart valve clamp forms a tubular structure, the direction toward the inner side of the tubular structure is the inner wall of the mounting seat 100 and the fixing seat 200 , while the inner walls of the mounting seat 100 and the fixing seat 200 are located The outer side is the outer wall of the mounting seat 100 and the fixing seat 200 .

In some implementations of this embodiment, the second end of the clamping block 220 is provided with a first inclined surface 222 , the first inclined surface 222 is located on the outer side of the clamping block 220 , and the first inclined surface 222 faces the mounting seat 100 along the fixing block 210 . The direction is inclined inward, and the mounting seat 100 is provided with a second inclined surface 150 which is matched with the first inclined surface 222 . The cooperation of the first inclined surface 222 and the second inclined surface 150 can make the installation easier and faster. During installation, align the clamping block 220 with the clamping slot 130, and then make the fixing base 200 approach the installation base 100. When the first inclined surface 222 When in contact with the second inclined surface 150 , the second inclined surface 150 pushes the clamping block 220 to move toward the inner side of the fixing block 210 , and when the clamping block 220 completely enters the clamping slot 130 , the clamping block 220 moves toward the outer side of the fixing block 210 . The clamping between the clamping block 220 and the mounting base 100 can be realized, and the fixing between the fixing base 200 and the mounting base 100 can be completed. Just move.

In some implementations of this embodiment, the fixing base 200 further includes an elastic member, the elastic member is installed between the fixing block 210 and the clamping block 220 , and the elastic member causes the clamping block 220 to have a tendency to move toward the outside of the fixing block 210 . .

One end of the elastic piece abuts against the fixing block 210 , and the other end of the elastic piece can abut against the center of the clamping block 220 , so that the force of the clamping block 220 can be more uniform and prevent the clamping block 220 from sliding when In addition, in this embodiment, the elastic member may be a spring in a compressed state, which is easy to install and has a long service life. Of course, in other embodiments, the elastic member is provided with a rubber block or other Structures with elasticity are also possible.

In some implementations of this embodiment, the side wall 140 of the opening 120 is inclined, the side wall 140 of the opening 120 is inclined toward the outside, and the edge of the fixing block 210 is arranged correspondingly to the side wall 140 of the opening 120 .

At this time, the side wall 140 of the opening 120 close to the through hole 110 is higher, and the side wall 140 of the opening 120 has an everted structure. When the heart valve 300 is installed, the heart valve 300 will protrude toward the first end of the mounting seat 100 From the beginning, the side wall 140 of the opening 120 is inclined to be arranged to reduce the deformation amount of the heart valve 300 during installation, thereby reducing the influence on the heart valve 300 and improving the accuracy of the test. In addition, the side wall of the opening 120 is inclined and arranged 140 can cooperate with the snap block 220. During the process of installing the fixing base 200 on the mounting base 100, the elastic member causes the snap block 220 to move toward the outside. When the first inclined surface 222 is in contact with the second inclined surface 150 , Correspondingly, the second inclined surface 150 also makes the clamping block 220 and the fixing block 210 have a tendency to move toward the inside, and the side wall 140 of the opening 120 arranged obliquely can limit the fixing block 210 to prevent the fixing block 210 from moving toward the inside. After the clamping block 220 is fully clamped into the clamping slot 130 , the side wall 140 of the opening 120 cooperates with the side wall 140 of the fixing block 210 to fix the positions of the fixing base 200 and the mounting base 100 .

In some implementations of this embodiment, a button 221 is provided on the clamping block 220, the button 221 is located at the center of the clamping block 220, and a first hole 213 and a second hole 214 are provided on the fixing block 210. The first hole One end of 213 facing the mounting seat 100 extends to the end face of the fixing block 210 , the clamping block 220 and the elastic member are located in the first hole 213 , the second hole 214 is located on the outer side wall of the fixing block 210 , and the second hole 214 is connected to the first hole 213 . The holes 213 communicate with each other, the button 221 is located in the second hole 214 , and the end face of the end of the button 221 facing away from the clamping block 220 is flush with the outer side wall of the fixing block 210 .

Pressing the part of the button 221 located in the second hole 214 can push the snap block 220 to move toward the inner side of the fixing block 210 , and arranging the button 221 at the center of the snap block 220 allows the snap block 220 to move when pushed , the force is more uniform, and the inclination is avoided, and the button 221 can be located at the position of the fixing block 210 close to the mounting seat 100, which is more convenient when disassembling; the heart valve clamp is mainly used for the heart valve 300. The part of the button 221 protrudes from the surface of the fixing block 210, so that the heart valve clamp can be better matched with other test structures.

In some implementations of this embodiment, the card slot 130 is located at the bottom of the opening 120 . When the mounting seat 200 is installed on the mounting seat 100, the mounting seat 200 is directly clipped into the opening 120 along the direction from the first end of the mounting seat 100 toward the second end, and the slot 130 is arranged at the bottom of the opening 120, which makes it easier to install. convenience.

In some implementations of this embodiment, the fixing block 210 includes a fixing line 212 and a transition line 211 , the fixing line 212 is arc-shaped, and the fixing line 212 coincides with the edge of the opening 120 , and two ends of the fixing line 212 are respectively connected with the transition line 211 to connect. The projection of the fixing wire 212 on the radial direction of the mounting seat 100 is a curve, and in order to better install the heart valve 300 and allow the heart valve 300 to be tested better, the fixing wire 212 can be placed in the diameter of the mounting seat 100. The upward projection is a half ellipse, and is the shape corresponding to the long axis of the half ellipse; the projection of the transition line 211 on the radial direction of the mounting seat 100 is a straight line, and its two ends are respectively connected with the two ends of the fixing line 212, and the transition line 211 is a straight line. The projection of the line 211 on the axial direction of the mounting seat 100 is a curve, and the diameter of the circle corresponding to the curve is equal to the diameter of the mounting seat 100 .

In some implementations of this embodiment, the ends of two adjacent fixing bases 200 facing away from the mounting base 100 abut each other. The projection of the transition line 211 on the axial direction of the mounting base 100 may be a third of a circle. After the three fixing bases 200 are respectively installed on the mounting base 100 , the space between the two adjacent fixing bases 200 may also be formed. Abutting, and two adjacent heart valves 300 can also be in contact with each other without overlapping, which is convenient for testing.

In some implementations of this embodiment, the fixing block 210 is provided with a positioning column 215, the positioning column 215 is arranged along the radial direction of the mounting seat 100, and the positioning column 215 is located at the end of the clamping slot 130 away from the mounting seat 100, and the clamping block 220 is provided with a positioning hole, and the positioning post 215 is clamped in the positioning hole. The clamping block 220 and the positioning post 215 are slidably connected, and the clamping block 220 can slide relative to the positioning post 215. When the fixing base 200 is installed, the first inclined surface 222 and the second inclined surface 150 interact with each other, so that the clamping block The end of the 220 protruding from the fixing block 210 is stressed and slides relative to the fixing block 210. At this time, due to its uneven force, it may be inclined when moving, which will lead to an insecure connection. The sliding path of the connecting block 220 forms a restriction, which can effectively prevent the clamping block 220 from shifting during movement.

In some implementations of this embodiment, the height of the fixing block 210 is half of the height of the mounting seat 100 . After the heart valve 300 is installed between the fixing seat 200 and the mounting seat 100 , one end of the heart valve 300 can be completely located in the heart valve clamp, and the other end of the heart valve 300 is located in the middle position of the through hole 110 .

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (10)

1. a heart valve clamp, is characterized in that, comprises: The mounting seat, the mounting seat includes a through hole, the cross section of the mounting seat is circular, the side wall of the mounting seat is provided with three openings that communicate with the through hole, and the three openings are along the The circumferential direction of the mounting seat is evenly distributed, and the mounting seat is provided with a slot at the opening; Three fixing bases, the three fixing bases are installed in the three openings in a one-to-one correspondence, the fixing bases include a fixing block and a clamping block, the fixing blocks are arc-shaped, and the corresponding fixing blocks are The diameter is equal to the diameter corresponding to the mounting seat so that the inner wall of the fixing block fits with the inner wall of the mounting seat, the first end of the clamping block is slidably connected with the fixing block, and the clamping block is along the The radial direction of the mounting seat slides relative to the fixing block, the second end of the clamping block is clamped in the clamping slot, and when the clamping block is close to the inner side of the fixing block, the The snap block can leave the snap slot. 2 . The heart valve clamp according to claim 1 , wherein the second end of the clamping block is provided with a first inclined surface, the first inclined surface is located outside the clamping block, and the first inclined surface is located at the outer side of the clamping block. The inclined surface is inclined inward along the direction of the fixing block toward the mounting seat, and the mounting seat is provided with a second inclined surface matched with the first inclined surface. 3 . The heart valve clamp according to claim 2 , wherein the fixing seat further comprises an elastic member, the elastic member is installed between the fixing block and the clamping block, and the elastic member makes the The engaging block has a tendency to move toward the outside of the fixing block. 4 . The heart valve clamp according to claim 3 , wherein the side wall of the opening is inclined, the side wall of the opening is inclined toward the outside, and the edge of the fixing block corresponds to the side wall of the opening. 5 . set up. 5 . The heart valve clamp according to claim 3 , wherein a button is provided on the clamping block, the button is located at the center of the clamping block, and the fixing block is provided with a first hole. 6 . and a second hole, the first hole extends toward the end of the mounting seat to the end face of the fixing block, the snap block and the elastic member are located in the first hole, the second hole is located on the outer side wall of the fixing block, and the second hole communicates with the first hole, the button is located in the second hole, and the end face of the end of the button facing away from the clamping block is connected to the fixing The outer side walls of the blocks are flat. 6 . The heart valve clamp according to claim 2 , wherein the clamping groove is located at the bottom of the opening. 7 . 7. The heart valve clamp according to claim 2, wherein the fixing block comprises a fixing line and a transition line, the fixing line is arc-shaped, and the fixing line is coincident with the edge of the opening, so Both ends of the fixed line are respectively connected with the transition line. 8 . The heart valve clamp according to claim 7 , wherein the ends of the two adjacent fixing bases facing away from the mounting base are abutted against each other. 9 . 9. The heart valve clamp according to any one of claims 1 to 8, wherein a positioning column is provided in the fixing block, the positioning column is arranged along the radial direction of the mounting seat, and the positioning column is The post is located at one end of the clamping slot away from the mounting seat, the clamping block is provided with a positioning hole, and the positioning post is clamped in the positioning hole. 10 . The heart valve clamp according to claim 1 , wherein the height of the fixing block is half of the height of the mounting seat. 11 .

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