CN219594675U - Occlusion Devices and Ventricular Connection Components - Google Patents

Abstract

The utility model relates to a blocking device and a ventricle connection assembly. The blocking device can block the installation hole of a ventricle connecting piece. inserted into the mounting hole, and in sealing contact with the wall of the mounting hole; the limiting part is connected to the insertion part, and the limiting part can abut against the edge of the mounting hole to prevent The blocking device moves in the first direction. The above-mentioned blocking device can block the installation hole of the ventricle connector to ensure that the opening on the biological tissue is blocked, effectively avoiding the outflow of blood, and through the limiting part, it is beneficial to avoid excessive insertion of the plug into the soft The biological tissue improves the safety of the use of the blocking device.

Description

Occlusion Devices and Ventricular Connection Components

technical field

The utility model relates to the field of medical equipment, in particular to a blocking device and a ventricle connection assembly.

Background technique

Cardiovascular disease has become a major cause of human death, and heart transplantation is an effective means of treating critical heart disease patients. However, in reality, there are far more heart recipients than heart donors, resulting in the death of patients waiting for a heart transplant. The blood pump can assist the heart to pump blood and is a common device for assisting the treatment of cardiovascular diseases.

When using a blood pump such as an implanted pump to be implanted in a human body, a hole needs to be opened at the location of the biological tissue such as the heart for a part of the blood pump to pass through. In order to allow the blood pump to be fixed to biological tissues such as the heart, the structure of the ventricle connector is generally added, and the ventricle connector is provided with installation holes corresponding to the openings of the heart. When performing an operation, the ventricular connecting piece is first sewed and fixed with the heart, and then the blood pump is inserted through the mounting hole and the opening. After the blood pump is inserted in place, the blood pump and the ventricular connecting piece are fixed. However, when the blood pump is removed, the openings on the biological tissue and the installation holes on the ventricle connecting piece are no longer blocked by the blood pump, causing blood to flow out. In view of this, after the blood pump is removed, the installation hole is blocked by a blocking device. However, when the occluding device is inserted into the mounting hole, it is difficult to determine whether the occluding device is inserted in place, and it is easy to cause the problem that the occluding device is not inserted in place and the sealing effect is poor, or the occluding device is over-inserted and the heart is too large. squeeze problem.

Utility model content

Based on this, it is necessary to provide a blocking device to block the opening on the biological tissue after the blood pump is removed, to prevent blood from flowing out, and to avoid the occurrence of too deep insertion and improper insertion.

The embodiment of the utility model proposes a blocking device, which can block the installation hole of the ventricle connector, and the blocking device includes:

an insertion part, the insertion part can be inserted into the installation hole along a first direction, and is in sealing contact with a hole wall of the installation hole; and,

The limiting part is connected with the insertion part, and the limiting part can abut against the edge of the installation hole, so as to prevent the blocking device from moving along the first direction.

Optionally, the occluding device further includes a sealing ring, which is sheathed on the insertion part and can be in sealing contact with the ventricle connecting member to seal the installation hole.

Optionally, the insertion portion is provided with a sealing groove, and the sealing ring is embedded in the sealing groove and partially protrudes outside the sealing groove.

Optionally, the ventricle connecting member has a first surface and a second surface disposed away from each other, and the installation hole runs through the first surface and the second surface;

The sealing groove is at least partially located on one side of the second surface, so that the sealing ring can contact the second surface.

Optionally, the sealing groove is at least partially located in the mounting hole, so that the sealing ring can abut against a hole wall of the mounting hole.

Optionally, along the axial direction of the installation hole, the axial width of the overlapping part of the sealing groove and the installation hole is less than half of the width of the sealing groove.

Optionally, the blocking device further includes a pushing structure, a slot is provided on a side of the limiting part away from the insertion part, and the slot is plugged and fitted with the pushing structure.

Optionally, the slot includes a first slot section and a second slot section distributed along the opening direction of itself, and the second slot section constitutes the opening of the slot; the inner diameter of the second slot section is larger than the the inner diameter of the first groove segment, and a first stepped surface facing the opening is formed at the junction of the second groove segment and the first groove segment;

The pushing structure includes a matching section and an operating section, the matching section fits into the first slot section; the operating section fits into the second slot section, and the operating section is partially exposed outside the slot;

A second stepped surface is formed between the matching section and the operating section, and the second stepped surface abuts against the first stepped surface.

Optionally, radial cross-sections of the first slot segment and the matching segment are circular, and radial cross-sections of the second slot segment and the operating segment are non-circular.

The embodiment of the utility model also proposes a ventricle connection assembly, including:

a ventricular connector having mounting holes; and,

Blocking device.

In the embodiment of the present invention, after the blood pump is dismantled, the installation hole on the ventricle connector can be blocked by the blocking device to prevent blood from flowing out from the installation hole. At the same time, the setting of the upper limit portion of the occlusion device can determine whether the occlusion device is inserted in place in the installation hole along the first direction through the abutment of the limit portion and the ventricular connector, which can prevent the occlusion device from being excessively inserted into the installation hole And in the soft biological tissue, the blocking device is prevented from colliding with the biological tissue due to too deep insertion, thereby improving the safety in use of the blocking device. In addition, the abutment between the limiting part and the ventricle connector can also avoid the problem that the occluding device is not inserted in place in the installation hole, resulting in poor sealing effect.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the conventional technology, the accompanying drawings that need to be used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the accompanying drawings in the following description are only For some embodiments of the present utility model, for those skilled in the art, other drawings can also be obtained according to these drawings without creative work.

Fig. 1 is a schematic structural view of an embodiment of the blocking device of the present invention.

Fig. 2 is a schematic structural view of the plug of the embodiment shown in Fig. 1 .

Fig. 3 is a structural schematic diagram of another direction of the plug shown in Fig. 2 .

Fig. 4 is a schematic plan view of the plug shown in Fig. 2 .

Fig. 5 is a schematic cross-sectional view along A-A direction of the embodiment shown in Fig. 4 .

Fig. 6 is a schematic structural view of an embodiment of the ventricular connection assembly of the present invention.

FIG. 7 is a schematic diagram of another direction of the embodiment shown in FIG. 6 .

FIG. 8 is an exploded schematic diagram of the structure of the embodiment shown in FIG. 7 .

FIG. 9 is a schematic structural view of the ventricle connector of the embodiment shown in FIG. 8 .

FIG. 10 is a schematic plan view of the embodiment shown in FIG. 6 .

Fig. 11 is a schematic cross-sectional view along the B-B direction of the embodiment shown in Fig. 10 .

Fig. 12 is a schematic cross-sectional view along the B-B direction of the embodiment shown in Fig. 10, wherein the sealing ring is not shown.

Fig. 13 is a schematic structural view of an embodiment of the blocking device of the present invention.

Fig. 14 is a structural schematic diagram of the pushing structure of the embodiment shown in Fig. 13 .

Fig. 15 is a schematic structural view of an embodiment of the ventricle connection assembly of the present invention.

FIG. 16 is a schematic cross-sectional view of the embodiment shown in FIG. 15 .

Fig. 17 is a schematic structural view of the surgical forceps shown in Fig. 15 .

Reference signs:

Plug 100, sealing ring 200, ventricular connector 300, mounting hole 400, pushing structure 500, surgical forceps 600, occluding device 700, ventricular connecting component 800;

Inserting part 111, limiting part 112, sealing groove 120, first groove wall 121, second groove wall 122, slot 130, first groove section 131, second groove section 132, first stepped surface 133;

The first surface 301, the second surface 302, the sewing ring 310, the locking ring 320, the operating groove 340;

The matching section 510 , the first limiting surface 511 , the connecting hole 512 , the operating section 520 , the second stepped surface 530 , and the clamping portion 610 .

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below limit.

It should be noted that when a component is referred to as being “fixed on” or “set on” another component, it may be directly on the other component or there may also be an intervening component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be intervening components at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present utility model are for the purpose of illustration only and do not represent the only implementation.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise specified and limited, the first feature may be in direct contact with the second feature, or the first feature and the second feature may be indirect contact between the first feature and the second feature. contact through an intermediary. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature. "Below", "beneath" and "under" the first feature may mean that the first feature is directly below or obliquely below the second feature, or it just means that the level of the first feature is smaller than that of the second feature.

Unless otherwise defined, all technical and scientific terms used in the description of the utility model have the same meaning as commonly understood by those skilled in the technical field of the utility model. The terminology used in the description of the present utility model is only for the purpose of describing specific implementations, and is not intended to limit the present utility model. The term "and/or" used in the description of the present utility model includes any and all combinations of one or more related listed items.

During the blood pump implantation operation, in order to fix the blood pump relative to the biological tissue, a ventricle connector is added to realize the fixation of the blood pump. Taking the process of implanting the blood pump into the heart as an example, the heart is provided with a surgical opening, and the ventricle connector is provided with installation holes. The ventricular connector is positioned outside the heart and fixed to the heart, while the mounting holes on the ventricular connector are aligned with the surgical opening on the heart. Then insert the blood inlet part of the blood pump into the ventricle or atrium from the installation hole and the operation opening, so that the blood in the ventricle or atrium flows to the artery through the blood pump, and realizes the function of assisting blood pumping.

When the blood pump is removed, the ventricular connections are left on biological tissue. However, when the blockage of the blood pump is lost, the surgical opening and the mounting hole are directly opened. In order to prevent blood from flowing out from the surgical opening and the installation hole, in the embodiment of the present invention, a blocking device is provided to block the installation hole.

As shown in Fig. 1, Fig. 2, Fig. 6 to Fig. 9, in the embodiment of the present invention, the ventricle connector 300 includes a first surface 301 and a second surface 302 which are arranged away from each other, and the second surface 302 can be in contact with biological tissue Fittingly, the ventricular connector 300 also has a mounting hole 400 extending through the first surface 301 and the second surface 302 . The blocking device 700 includes a plug 100, and the plug 100 includes an interlocking insertion part 111 and a limiting part 112. The insertion part 111 is inserted into the The mounting hole 400 is in sealing contact with the wall of the mounting hole 400 ; the limiting portion 112 is located outside the mounting hole 400 and can abut against the edge of the mounting hole 400 to prevent the blocking device 700 from moving in the first direction. In some specific embodiments, the limiting portion 112 can abut against the first surface 301 of the ventricle connecting member 300 .

In the embodiment of the present invention, by adding the blocking device 700, when the blood pump is removed, the blocking device 700 can be used to block the installation hole 400 on the ventricle connector 300, preventing blood from flowing out from the installation hole 400. At the same time, the limit portion 112 of the occlusion device 700 abuts against the edge of the installation hole 400 of the ventricular connector 300, which can prevent the occlusion device 700 from being excessively inserted into the installation hole 400 and soft biological tissue along the first direction, and at the same time This prevents the occlusion device 700 from colliding with biological tissues due to too deep insertion, thereby improving the safety of the occlusion device 700 in use. In addition, the setting of the limiting part 112, after the limiting part 112 abuts against the hole edge of the mounting hole 400 of the ventricle connector 300, can also avoid the occurrence that the occluding device 700 is not inserted into the mounting hole 400 in place, resulting in poor sealing effect. bad question.

Further, the occlusion device 700 further includes a sealing ring 200 , which is sheathed on the plug 100 , and the sealing ring 200 can be in sealing contact with the ventricle connecting member 300 to seal the installation hole 400 . In this embodiment, the arrangement of the sealing ring 200 can enhance the sealing effect between the plug 100 and the installation hole 400 and prevent blood from flowing out from the installation hole 400 .

Please refer to Fig. 3 to Fig. 5 in combination. In this embodiment, the insertion part 111 of the plug 100 is provided with a sealing groove 120, the sealing groove 120 is an annular groove, and the sealing ring 200 is embedded in the sealing groove 120 and partially protrudes. Outside the sealing groove 120 , the part of the sealing ring 200 protruding outside the sealing groove 120 can be in sealing contact with the ventricle connector 300 , for example, can be in sealing contact with the hole wall of the installation hole 400 to realize the sealing of the installation hole 400 . Such a design is beneficial for sealing the installation hole 400 and at the same time limiting the sealing ring 200 to a certain extent. In other embodiments, the sealing ring 200 can also be sleeved on the insertion portion 111 by means of interference fit, adhesive or buckle installation.

Please refer to FIG. 10 to FIG. 12 . In some embodiments, the sealing groove 120 is at least partially located on the side where the second surface 302 is located, so that the sealing ring 200 can contact the second surface 302 . Specifically, the sealing groove 120 includes a first groove wall 121 and a second groove wall 122 oppositely arranged, and the first groove wall 121 and the second groove wall 122 are distributed along the axial direction of the installation hole 400 at intervals, and the first groove wall 121 is opposite to the second groove wall. The second groove wall 122 is disposed closer to the limiting portion 112 . Wherein, at least, the second groove wall 122 is located outside the installation hole 400, and the second groove wall 122 is located on the side where the second surface 302 is located, so that the sealing ring 200 adapted to the sealing groove 120 is also at least partially located in the installation hole 400 , the sealing ring 200 can be in contact with the second surface 302 , and can be sealed at the edge of the mounting hole 400 , completely preventing blood from entering the mounting hole 400 and avoiding thrombus in the mounting hole 400 .

In some embodiments, the sealing groove 120 is at least partially located in the mounting hole 400, so that the sealing ring 200 can abut against the wall of the mounting hole 400, and the sealing ring 200 is squeezed in the radial direction by the wall of the mounting hole 400 , the sealing ring 200 can be clamped between the hole wall of the installation hole 400 and the insertion part 111 of the plug 100, preventing the sealing ring 200 from moving along the axial direction of the installation hole 400, and avoiding the risk of the sealing ring 200 coming off. Improved safe use performance.

Specifically, when only a part of the sealing groove 120 is located in the installation hole 400 , the first groove wall 121 is located in the installation hole 400 , and the second groove wall 122 is located outside the installation hole 400 . When the sealing groove 120 is all located in the installation hole 400 , the first groove wall 121 and the second groove wall 122 are all located in the installation hole 400 . Certainly, in other embodiments, the sealing groove 120 may be all located outside the installation hole 400, that is, the first groove wall 121 and the second groove wall 122 are all located outside the installation hole 400 and all are located on the side where the second surface 302 is located, thus All the sealing rings 200 are located outside the installation hole 400 , and the sealing of the installation hole 400 can also be achieved by being in sealing contact with the second surface 302 .

In the embodiment where part of the sealing groove 120 is located in the installation hole 400 and the other part is located outside the installation hole 400 , on the one hand, a part of the sealing ring 200 can be clamped at the insertion part between the hole wall of the installation hole 400 and the plug 100 111 prevents the sealing ring 200 from moving along the axial direction of the installation hole 400, avoids the risk of the sealing ring 200 detaching, and improves the safe use performance. On the other hand, another part of the sealing ring 200 can seal against the second surface 302 and directly seal the installation hole 400 at the opening of the installation hole 400 , completely preventing blood from entering the installation hole 400 to form a thrombus.

Optionally, the axial width D1 of the overlapping portion of the sealing groove 120 and the installation hole 400 is less than half of the groove width D2 of the sealing groove 120 . The axial width D1 of the overlapping portion of the sealing groove 120 and the mounting hole 400 refers to the axial distance between the first groove wall 121 and the second surface 302 along the axial direction of the mounting hole 400, and the groove width D2 of the sealing groove 120 refers to the first The distance between the first groove wall 121 and the second groove wall 122 . In this embodiment, a small part of the sealing ring 200 is located in the installation hole 400 , and most of the sealing ring 200 is located outside the installation hole 400 . Taking the circular sealing ring 200 as an example, the highest protruding position of the sealing ring 200 on the peripheral surface of the insertion portion 111 is located outside the installation hole 400 , so that the sealing ring 200 can also abut against the second surface 302 . In this embodiment, the sealing ring 200 directly seals against the wall of the installation hole 400 and the second surface 302 close to the edge of the installation hole 400 , which has a larger sealing area and thus better sealing effect. Moreover, such a design is beneficial to ensure the sealing effect on the installation hole 400 while maintaining the position stability of the sealing ring 200 .

Further, titanium powder is provided on the surface of the insertion portion 111 exposed on the side where the second surface 302 is located, and the titanium powder is used for antibacterial and avoiding biological rejection. That is, at least the part where the insertion part 111 is inserted into the heart is provided with titanium powder. Of course, titanium powder can be provided on each surface of the entire insertion portion 111 .

Furthermore, in order to facilitate the insertion of the insertion part 111 into the installation hole 400 and reduce the obstruction during the assembly process, the edge of the end of the insertion part 111 away from the limit part 112 is chamfered to form a guiding slope or a guiding arc , the guide inclined surface or the guide arc surface makes the end of the insertion part 111 away from the limit part 112 similar to tapered, and has a smaller end, so as to play a guiding role, and can be more easily inserted into the installation hole 400, Reduce or even avoid the collision with the edge of the mounting hole 400 .

Since the sealing ring 200 will be in contact with blood, in order to avoid infection, the sealing ring 200 can be made of liquid silicone.

Please refer to FIG. 5 , FIG. 13 and FIG. 14 , further, a slot 130 is provided on the side of the limiting part 112 away from the insertion part 111 , and the blocking device 700 also includes a pushing structure 500 ; the pushing structure 500 and the slot 130 Mating. Since the blocking device 700 needs to be set on biological tissue, for example, it may be hidden in the chest cavity, so the size of the blocking device 700 should be set as small as possible to reduce the impact on the patient. However, the smaller-sized occlusion device 700 is inconvenient to operate when pushed into the ventricle connecting member 300 . Therefore, the setting of the pushing structure 500 is equivalent to extending the size of the occluding device 700 , which is convenient for doctors to hold and improves the convenience of operation. When the pushing structure 500 is pushed toward the side where the biological tissue is located, the pushing structure 500 drives the blocking device 700 to move and be inserted into the installation hole 400 . After the blocking device 700 is inserted into the mounting hole 400 in place, the pushing structure 500 can be pulled out from the blocking device 700, the pushing structure 500 is separated from the blocking device 700, and the blocking device 700 is left in the biological tissue to prevent the operation. The hole is blocked.

In the embodiment of the present utility model, the pushing structure 500 may be generally in the shape of a cylinder, a prism, a square column or other shapes. The shape of the slot 130 is adapted to the pushing structure 500, and the shape of the slot 130 can be circular, prismatic or square. The fitting of the slot 130 and the pushing structure 500 means that the shape of the radial cross-section of the slot 130 is substantially the same as that of the pushing structure 500, and the pushing structure 500 can substantially fill the slot 130 to achieve a relatively tight fit. cooperation, so that the pushing structure 500 can push the occlusion device 700 to move toward the heart, and also can drive the occlusion device 700 to rotate.

In some embodiments, the slot 130 includes a first slot section 131 and a second slot section 132 distributed along the opening direction of itself, and the second slot section 132 constitutes the opening of the slot 130; the inner diameter of the second slot section 132 is larger than that of the first slot section 132 The inner diameter of the slot section 131 is formed at the junction of the second slot section 132 and the first slot section 131 to form a first stepped surface 133 facing the opening. In this embodiment, when a non-circular structure is adopted, the inner diameter of the second slot segment 132 is greater than the inner diameter of the first slot segment 131 means that the radial cross-sectional area of the second slot segment 132 is larger than that of the first slot segment 131 Radial cross-sectional area.

The pushing structure 500 includes a connected matching section 520 and an operating section 510, the matching section 520 fits and fits with the first slot section 131 of the slot 130 of the blocking device 700; the operating section 510 and the second slot section 132 of the slot 130 Fitted and inserted, and the operating section 510 is partially exposed outside the slot 130 . Further, a second stepped surface 530 is formed between the matching section 520 and the operating section 510 , and the second stepped surface 530 abuts against the first stepped surface 133 of the slot 130 .

The setting of the first stepped surface 133 and the second stepped surface 530 makes the force of the pushing structure 500 on the plug 100 disperse partly from the groove bottom wall of the slot 130 to the first stepped surface 133, and the first stepped surface 133 The inner diameter is larger than the inner diameter of the first groove section 131, that is, the force will be dispersed from the center of the slot 130 to the surroundings, and the plug 100 will be squeezed in the direction close to the surroundings, so that the force on the plug 100 is more uniform, and the limit of the plug 100 The bit 112 can better abut against the ventricular connector 300 .

In one embodiment, the radial cross-section of the first groove segment 131 is circular, and the radial cross-section of the second groove segment 132 is non-circular. Correspondingly, the radial section of the matching section 520 is circular, and the radial section of the operating section 510 is non-circular.

Since a part of the slot 130 is configured as a non-circular hole, and a part of the pushing structure 500 is configured as a non-circular column matching the non-circular hole, the pushing structure 500 can be prevented from rotating relative to the slot 130 . During the process of squeezing the plug 100 into the installation hole 400, the plug 100 is held by the ventricular connector 300 with a relatively large clamping force, so that the plug 100 is not easy to be pushed and easily stuck. At this time, the pushing structure 500 can be rotated , to drive the plug 100 to rotate, so that the plug 100 is equivalent to being rotated and pushed through the installation hole 400 , so that the plug 100 can be assembled into the installation hole 400 more smoothly, and the extrusion on biological tissues can be reduced.

Of course, in other embodiments, the entire slot 130 is non-circular, and all of the pushing structure 500 located in the slot 130 is set to be non-circular.

Further, the operation section 510 is provided with a connection hole 512, the connection hole 512 is used for installing a handle for easy operation, and the handle and the operation section 510 are detachably connected, such as direct plugging or clamping, or screw connection. The handle can be L-shaped, straight-lined, etc.

A column can be connected to the connection hole 512 of the push structure 500, similar to forming a handle, which is convenient for the user to apply force to push and rotate the push structure 500 on the handle to prevent slipping.

For ease of understanding, one specific structure of the ventricle connector 300 is introduced below, but not limited thereto. In some embodiments, the ventricular connector 300 includes a sewing ring 310 and a locking ring 320, the mounting hole 400 runs through the sewing ring 310 and the locking ring 320, the sewing ring 310 is used for suturing on biological tissue, and the locking ring 320 connects the suture ring 310 to adjust the size of the mounting hole 400 . The side of the locking ring 320 facing away from the sewing ring 310 is the first surface 301 , and the side of the sewing ring 310 facing away from the locking ring 320 is the second surface 302 .

Since the ventricular connector 300 is directly sutured on the biological tissue, and the biological tissue is a soft tissue, when the plug 100 is pushed inward and squeezed through the ventricular connector 300, it will directly squeeze the biological tissue, causing the plug 100 to be unable to bear. The effect of force or force is poor, so it is difficult to penetrate the ventricle connector 300, and excessive extrusion of biological tissue can easily lead to bleeding. Therefore, further, please refer to FIG. 15 to FIG. 17 , a surgical forceps 600 can be provided during the operation, and the clamping portion 610 of the surgical forceps 600 extends into the operation groove 340 between the sewing ring 310 and the locking ring 320 , And pull the surgical forceps 600 outward, so that the locking ring 320 is basically fixed in one position, and then the plug 100 is pushed into the installation hole 400. At this time, even if the locking ring 320 is axially pushed by the plug 100 Squeezing will also be basically fixed in one position under the action of the surgical forceps 600, so on the one hand, the plug 100 can be stressed better, and the plug 100 can pass through the locking ring 320 conveniently, and at the same time, the plug 100 can be avoided. Excessive compression of biological tissue.

The embodiment of the present utility model also proposes a ventricular connection assembly 800, including a ventricular connection 300 and an occlusion device 700. For the structures of the ventricular connection 300 and the occlusion device 700, please refer to the above-mentioned embodiments, which will not be repeated here.

The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above examples only express several implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the patent protection scope of the utility model should be based on the appended claims.

Claims (10)

1. A blocking device, which can block the installation hole of the ventricle connector, is characterized in that, the blocking device comprises: an insertion part, the insertion part can be inserted into the installation hole along a first direction, and is in sealing contact with a hole wall of the installation hole; and, The limiting part is connected with the insertion part, and the limiting part can abut against the edge of the installation hole, so as to prevent the blocking device from moving along the first direction. 2. The occlusion device according to claim 1, characterized in that, the occlusion device further comprises a sealing ring, the sealing ring is sleeved on the insertion part and can be in sealing contact with the ventricle connector, to seal the mounting hole. 3. The sealing device according to claim 2, characterized in that, the insertion part is provided with a sealing groove, and the sealing ring is embedded in the sealing groove and partially protrudes outside the sealing groove . 4. The occlusion device according to claim 3, wherein the ventricular connector has a first surface and a second surface opposite to each other, and the installation hole runs through the first surface and the second surface. surface; The sealing groove is at least partially located on one side of the second surface, so that the sealing ring can contact the second surface. 5 . The blocking device according to claim 4 , wherein the sealing groove is at least partially located in the installation hole, so that the sealing ring can abut against a wall of the installation hole. 5 . 6 . The sealing device according to claim 5 , wherein the axial width of the overlapping part of the sealing groove and the installation hole is less than half of the groove width of the sealing groove. 7 . 7. The occlusion device according to any one of claims 1 to 6, characterized in that the occlusion device further comprises a push structure, and a slot is provided on the side of the limiting part away from the insertion part , the slot is mated with the pushing structure. 8. The blocking device according to claim 7, characterized in that, the slot comprises a first slot section and a second slot section distributed along the opening direction of itself, and the second slot section constitutes the opening of the slot. Opening; the inner diameter of the second groove segment is larger than the inner diameter of the first groove segment, and a first stepped surface facing the opening is formed at the junction of the second groove segment and the first groove segment; The pushing structure includes a matching section and an operating section, the matching section fits into the first slot section; the operating section fits into the second slot section, and the operating section is partially exposed outside the slot; A second stepped surface is formed between the matching section and the operating section, and the second stepped surface abuts against the first stepped surface. 9. The blocking device according to claim 8, characterized in that, the radial section of the first groove section and the matching section is circular, and the radial section of the second groove section and the operation section is circular. The cross-section is non-circular. 10. A ventricular connection assembly, comprising: a ventricular connector having mounting holes; and, An occlusion device as claimed in any one of claims 1 to 9.