Ventricle connecting assembly, medical clamp and ventricle connecting kit

Abstract

The invention relates to a ventricle connecting assembly, a medical clamp and a ventricle connecting kit. The ventricle connecting assembly comprises a suture ring and a clamping ring, the clamping ring is arranged on the suture ring, and the clamping ring comprises a ring body and a clamping convex lug; wherein the ring body is provided with a peripheral wall; the clamping lug is arranged on the peripheral wall and can be clamped by a medical clamp; and at least part of the clamping lug can be accommodated in the accommodating groove of the medical clamp so as to be clamped and fixed with the medical clamp. The clamping lug of the ventricle connecting assembly can be clamped by the medical clamp, and at least part of the clamping lug can be accommodated in the accommodating groove and is clamped and fixed with the medical clamp, so that the medical clamp is prevented from being separated from the clamping lug of the ventricle connecting assembly, and the connecting strength of the medical clamp and the ventricle connecting assembly is improved; and the probability that the medical clamp is loosened from the ventricle connecting assembly is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a ventricular connection component, a medical clamp and a ventricular connection kit. Background Art

[0002] In a blood pump implantation operation, a medical clamp is usually required to act on the ventricular connection assembly to support and position the ventricular connection assembly so as to facilitate the installation of the blood pump on the ventricular connection assembly. However, the existing ventricular connection assembly and the medical clamp are not firmly matched, which makes it easy for the ventricular connection assembly to loosen from the medical clamp. Summary of the invention

[0003] Based on this, it is necessary to provide a ventricular connection component, a medical clamp and a ventricular connection kit to address the problem that the current ventricular connection component and the medical clamp are not firmly matched and are easy to loosen, which can improve the connection strength with the ventricular connection component and reduce the chance of the medical clamp loosening from the ventricular connection component.

[0004] In a first aspect, the present application provides a ventricular connection assembly, comprising:

[0005] Suture ring; and

[0006] A clamping ring, wherein the clamping ring is arranged on the suture ring, and the clamping ring includes a ring body and a clamping lug; wherein the ring body has an outer peripheral wall; the clamping lug is arranged on the outer peripheral wall and can be clamped by a medical clamp; at least part of the clamping lug can be received in a receiving groove of the medical clamp to be engaged and fixed with the medical clamp, and the clamping lug has an anti-detachment structure, and when the clamping ring is clamped by the medical clamp, the anti-detachment structure can prevent the clamping lug from detaching from the receiving groove of the medical clamp.

[0007] In one embodiment of the present application, the anti-detachment structure includes a positioning ear, and the clamping lug also includes a connecting portion connected to the outer peripheral wall, the positioning ear is connected to an end of the connecting portion that is away from the outer peripheral wall, and the positioning ear extends from the side of the connecting portion in a direction away from the connecting portion, the positioning ear can be accommodated in the accommodating groove, and when the clamping ring is clamped by the medical clamp, at least a portion of the positioning ear can be confined in the accommodating groove.

[0008] In one embodiment of the present application, the connecting portion is connected to the outer peripheral wall, and the connecting portion has a first surface and a second surface spaced apart along the circumference of the ring body, and at least one of the first surface and the second surface is provided with the positioning ear protruding along the circumference of the ring body.

[0009] In one embodiment of the present application, the clamping ring further has at least one of the following features:

[0010] The first surface and the second surface are both connected to the outer peripheral wall, and a first fillet is provided at a connection between at least one of the first surface and the second surface and the outer peripheral wall;

[0011] The number of the positioning ears is two, and the two positioning ears are arranged on opposite sides of the connecting portion and are symmetrical;

[0012] The positioning ear has two first positioning side surfaces facing each other in the radial direction of the ring body, and the width between the two first positioning side surfaces gradually decreases along the circumference of the ring body and away from the connecting portion, so that at least one of the first positioning side surfaces forms a first guide surface.

[0013] In one embodiment of the present application, the positioning ear portion has two first positioning side surfaces facing each other in the radial direction of the ring body, wherein:

[0014] A first concave arc surface is provided at a connection between the first positioning side surface of the positioning ear portion facing the outer peripheral wall and the connecting portion, and the first concave arc surface can abut against an abutting portion of the medical clamp located at one side of the accommodating groove;

[0015] And / or, the positioning ear also has two second positioning side surfaces opposite to each other in the axial direction of the ring body; an arcuate surface is provided at the connection between the first positioning side surface and the second positioning side surface, and the thickness between the two second positioning side surfaces gradually decreases along the circumference of the ring body and in the direction away from the connecting portion, so that at least one of the second positioning side surfaces forms a second guide surface.

[0016] In one embodiment of the present application, the outer peripheral wall includes a cutting plane and an arc surface connected to the cutting plane, the clamping lug is protruded on the cutting plane along the radial direction of the ring body, the cutting plane can be abutted against the end face of the medical clamp, the ring body is provided with a mounting boss, the mounting boss protrudes in a direction away from the ring body along the radial direction of the ring body relative to the arc surface, and the cutting plane is arranged on the mounting boss; and / or the connection between the cutting plane and the arc surface is smoothly transitioned.

[0017] In one embodiment of the present application, the ring body further comprises a bottom wall and a top wall facing each other, the bottom wall is in contact with the sewing ring, the peripheral wall is connected between the bottom wall and the top wall, and the peripheral wall is a cylindrical surface;

[0018] And / or, the ring body is provided with an opening and two connecting ends located on both sides of the opening, the ventricular connection assembly also includes a locking assembly, the locking assembly includes a connecting member and a locking member rotatably connected to the connecting member, the connecting member is connected to one of the connecting ends, the locking member can be rotatably abutted against the other connecting end, and when the locking member rotates, the two connecting ends can be brought closer to each other to reduce the inner diameter of the ring body, and the clamping lugs and the connecting ends and the locking assembly are all spaced apart along the circumferential direction of the ring body.

[0019] In a second aspect, the present application further provides a medical clamp capable of clamping any of the above-mentioned ventricular connection components, the medical clamp comprising:

[0020] A pliers handle, the pliers handle comprising a first pliers body and a second pliers body, the first pliers body and the second pliers body being rotatably connected so that the first pliers body can be opened or clamped relative to the second pliers body; and

[0021] A clamping portion, the clamping portion includes a first clamping end and a second clamping end; the first clamping end is connected to the first clamp body; the second clamping end is connected to the second clamp body, and the second clamping end can cooperate with the first clamping end to clamp the clamping lug of the ventricular connecting component; at least one of the first clamping end and the second clamping end is provided with a receiving groove, and the receiving groove can accommodate at least a part of the clamping lug to engage and position with the clamping lug, and when the medical clamp clamps the clamping ring, the receiving groove can cooperate with the anti-detachment structure to prevent the clamping lug from detaching from the receiving groove.

[0022] In one embodiment of the present application, the accommodating groove includes a plurality of groove walls connected end to end, the groove walls can surround the anti-detachment structure accommodated in the accommodating groove and have an interference fit with the anti-detachment structure; and / or, the first clamping end includes a first inner side surface facing the second clamping end; the first clamping end is provided with the accommodating groove, and the accommodating groove is a blind hole recessed into the interior of the first clamping end from the first inner side surface in a direction away from the second clamping end; and / or, the first clamping end and the second clamping end are both provided with the accommodating groove, and the notches of the two accommodating grooves are arranged opposite to each other.

[0023] In one embodiment of the present application, the first clamping end includes a first inner side surface facing the second clamping end, a first outer side surface away from the second clamping end, and a first abutting surface, wherein the first abutting surface and the first inner side surface are located on the same side of the first clamping end and can abut against the connecting portion of the clamping lug; there is a first distance between the first abutting surface and the first outer side surface, and there is a second distance between the first inner side surface and the first outer side surface, and the first distance is smaller than the second distance.

[0024] In one embodiment of the present application, the pliers handle also includes a first handle segment and a second handle segment, the second handle segment is connected between the first handle segment and the clamping portion, and the clamping portion and the first handle segment are arranged on opposite sides of the second handle segment, the angle between the second handle segment and the clamping portion is θ1, and 80°≤θ1≤100°, the angle between the second handle segment and the first handle segment is θ2, and 90°<θ2<180°.

[0025] In a third aspect, the present application provides a ventricular connection kit, comprising a medical clamp as described in any of the above technical features and a ventricular connection assembly as described in the above technical features, wherein at least a portion of the clamping protrusions of the ventricular connection assembly can be received in the receiving groove of the medical clamp to be engaged and fixed with the medical clamp.

[0026] After adopting the above technical solution, this application has at least the following technical effects:

[0027] The ventricular connection assembly, medical clamp and ventricular connection kit of the present application, the clamping lugs on the clamping ring of the ventricular connection assembly can be clamped by the medical clamp, at least part of the clamping lugs can be accommodated in the receiving groove to be fixed with the medical clamp, and when the clamping ring is clamped by the medical clamp, the anti-detachment structure can prevent the clamping lugs from detaching from the receiving groove of the medical clamp, so as to limit the separation of the clamping lugs of the medical clamp and the ventricular connection assembly, increase the connection strength between the medical clamp and the ventricular connection assembly, and reduce the probability of the medical clamp being loosened from the ventricular connection assembly. The clamping lugs are arranged on the peripheral wall, so that the medical clamp can be connected only to the clamping lugs of the peripheral wall of the clamping ring, without connecting to the peripheral wall of the entire clamping ring, thereby reducing the contact area between the medical clamp and the ventricular connection assembly, thereby reducing the size of the medical clamp to adapt to small incision surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the structure of the ventricular connection kit provided in this application.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of a ventricular connection component of a ventricular connection kit is shown.

[0030] Figure 3 for Figure 1 A partial enlarged view at P1.

[0031] Figure 4 for Figure 2 A local enlarged view at P2.

[0032] Figure 5 for Figure 2 A top view of the ventricular connection assembly is shown.

[0033] Figure 6 for Figure 5 A partial enlarged view at P3.

[0034] Figure 7 for Figure 2 A schematic structural diagram of the clamping ring of the ventricular connection assembly is shown.

[0035] Figure 8 for Figure 7 A partial enlarged view at point A.

[0036] Fig. 9 for Figure 1 A schematic diagram of the structure of the medical clamp of the ventricular connection kit is shown.

[0037] Fig.10 for Fig. 9 A partial enlarged view at P4.

[0038] Fig.11 It is a partial enlarged view of the first clamping end of the medical clamp shown.

[0039] Fig.12 for Fig. 9 A front view of the medical clamp is shown.

[0040] Fig.13 for Fig.12 Cross-sectional view along direction II.

[0041] Fig.14 for Fig.12 A partial enlarged view at P5.

[0042] Fig.15 for Figure 1 A stereoscopic view of a blood pump with the ventricular connection kit installed is shown.

[0043] Fig.16 for Fig.15 Side view of the blood pump with the ventricular connection kit installed is shown.

[0044] Fig.17 for Fig.16 A partial enlarged view at P6.

[0045] Fig.18 for Fig.17 A schematic diagram showing the clamping portion being separated from the clamping lug. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. Those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0047] During the blood pump implantation operation, it is usually necessary to use a medical clamp to support and position the ventricular connection assembly so as to install the blood pump on the ventricular connection assembly. However, the current medical clamp clamps the entire peripheral wall of the clamping ring of the ventricular connection assembly. When the blood pump is installed on the ventricular connection assembly, force is applied to the ventricular connection assembly, and the peripheral wall of the clamping ring is easily separated from the clamping end of the medical clamp, that is, the ventricular connection assembly and the medical clamp are not firmly matched, resulting in the medical clamp being easily loosened from the ventricular connection assembly.

[0048] See also Figures 1 to 3 To this end, the present application provides a ventricular connection assembly 30, which can cooperate with the medical clamp 10. Specifically, the medical clamp 10 can clamp the ventricular connection assembly 30 to support and position the ventricular connection assembly 30, so as to facilitate the subsequent blood pump 5 (such as Fig.15 ) is fixedly mounted on the ventricular connection assembly 30.

[0049] The specific structure of the ventricular connection assembly 30 of an embodiment is introduced below. Prior to this, the structure of the ventricular connection kit 1 is briefly introduced. The ventricular connection kit 1 includes a medical clamp 10 and a ventricular connection assembly 30. The medical clamp 10 clamps the ventricular connection assembly 30. Among them, the ventricular connection assembly 30 includes a suture ring 300 and a clamping ring 400. The suture ring 300 is fixed to the ventricular wall. The clamping ring 400 is arranged on the suture ring 300. For example, the clamping ring 400 and the suture ring 300 are connected by suture, and the clamping ring 400 is used to clamp the blood pump 5. The clamping ring 400 includes a ring body 401 and a clamping lug 420; wherein the ring body 401 has an outer peripheral wall 410; the clamping lug 420 is arranged on the outer peripheral wall 410 and can be clamped by the medical clamp 10; at least part of the clamping lug 420 can be accommodated in the receiving groove 210 of the medical clamp 10 to be engaged and fixed with the medical clamp 10, and the clamping lug 420 has an anti-detachment structure. When the clamping ring 400 is clamped by the medical clamp 10, the anti-detachment structure can prevent the clamping lug 420 from detaching from the receiving groove 210 of the medical clamp 10.

[0050] The clamping lug 420 of the above-mentioned ventricular connecting component 30 can be clamped by the medical clamp 10, and at least a part of the clamping lug 420 can be received in the receiving groove 210 to be engaged and fixed with the medical clamp 10, and when the clamping ring 400 is clamped by the medical clamp 10, the anti-detachment structure can prevent the clamping lug 420 from detaching from the receiving groove 210 of the medical clamp 10, so that during the installation process of the blood pump, even if force is applied to the ventricular connecting component, the separation of the clamping lug 420 of the medical clamp 10 and the ventricular connecting component 30 can be limited, thereby increasing the connection strength between the medical clamp 10 and the ventricular connecting component 30 and reducing the probability of the medical clamp 10 loosening from the ventricular connecting component 30.

[0051] The clamping lug 420 is arranged on the peripheral wall 410. For example, the clamping lug 420 extends in the radial direction of the ring body 401 in a direction away from the ring body 401, so that the medical clamp 10 can be connected only to the clamping lug 420 on the peripheral wall 410, without connecting to the entire peripheral wall 410, thereby reducing the contact area between the medical clamp 10 and the ventricular connection component 30, thereby reducing the size of the medical clamp 10 to adapt to small incision surgery. In addition, through the cooperation between the clamping lug 420 on the peripheral wall 410 and the medical clamp 10, when the medical clamp 10 clamps the ventricular connection component 30, the medical clamp 10 only needs to be opened to a width greater than the clamping lug 420, and does not need to be expanded to a diameter greater than the clamp ring 400. The medical clamp 10 requires a smaller operating space, which is conducive to operation in a narrow chest cavity, thereby helping to reduce the difficulty of blood pump implantation surgery.

[0052] Optionally, the sewing ring 300 is an annular structure. Optionally, the sewing ring 300 is fixed to the heart by suturing with sutures. The sewing ring 300 may include a sewing cloth and a soft material wrapped in the sewing cloth, such as silica gel or rubber, so that the sewing ring 300 can adapt to the curved surface shape of the outer wall of the heart and can be sutured to the outer wall of the heart.

[0053] Optionally, the ring body 401 is a substantially annular structure, and the ring body 401 is fixed to the sewing ring 300 by sutures, or connected to the sewing ring 300 by adhesives, etc. The ring body 401 is used to clamp the blood pump 5. Specifically, the blood pump 5 is accommodated in the ring body 401 through its inlet tube and is clamped by the ring body 401.

[0054] In one embodiment, the peripheral wall 410 includes a cutting plane 411 and an arc surface 412 connected to the cutting plane 411. In this embodiment, the connection between the cutting plane 411 and the arc surface 412 is smoothly transitioned to avoid the generation of sharp edges and scratches on medical staff or patients, which is conducive to suturing and fixing the clamping ring 400 to the sewing ring 300.

[0055] The ring body 401 further includes a bottom wall (not shown) and a top wall 403 facing each other, wherein the bottom wall is in contact with the sewing ring 300, the top wall 403 is the surface of the ring body 401 facing away from the sewing ring 300, and the outer peripheral wall 410 is connected between the bottom wall and the top wall 403. In this embodiment, the outer peripheral wall 410 is a cylindrical surface. Compared with setting the outer peripheral wall 410 as a step surface, the outer peripheral wall 410 as a cylindrical surface can provide a larger area for the clamping lug 420 to connect, thereby increasing the connection strength between the clamping lug 420 and the ring body 401, thereby reducing the probability of the clamping lug 420 breaking from the ring body 401. The outer peripheral wall 410 is a cylindrical surface, and no annular groove is set on the outer periphery of the ring body 401, which can increase the overall strength of the ring body 401 and reduce the probability of the ring body 401 being deformed under the action of external force as much as possible.

[0056] The ring body 401 is provided with an opening 404 and two connecting ends located on both sides of the opening 404, and the two connecting ends extend radially outwardly of the ring body 401; the two connecting ends can be selectively moved closer or farther away to change the width of the opening 404, thereby adjusting the inner diameter of the ring body 401. For ease of description, the two connecting ends are defined as a first connecting end 405a and a second connecting end 405b.

[0057] See also Figure 3 The medical clamp 10 has an end face 260, which can be opposite to the outer peripheral wall 410 when the medical clamp 10 clamps the clamping lug 420. The clamping lug 420 is clamped by the medical clamp 10 to clamp the clamping ring 400, thereby clamping the ventricular connection assembly 30, which is convenient for the implantation of the blood pump 5. The clamping lug 420 is convexly arranged on the cutting plane 411 along the radial direction of the ring body 401, and the cutting plane 411 can abut against the end face 260 of the medical clamp 10. After the clamping lug 420 is received and fixed in the accommodating groove 210, the cutting plane 411 can abut the end face 260 of the medical clamp 10, so that the medical clamp 10 and the clamping ring 400 are in contact with each other in two planes. Compared with the contact between the plane and the arc surface, the contact between the two planes can increase the contact area between the medical clamp 10 and the clamping ring 400, making it difficult for the medical clamp 10 to rotate relative to the clamping ring 400, thereby increasing the connection strength between the medical clamp 10 and the clamping ring 400.

[0058] See also Figures 4 to 6 The ring body 401 is provided with a mounting boss 413, and the mounting boss 413 protrudes in a direction away from the ring body 401 along the radial direction of the ring body 401 relative to the arc surface 412 to increase the radial width of the ring body 401, and the cutting plane 411 is arranged on the mounting boss 413, that is, the cutting plane 411 is arranged at a wider position of the ring body 401, so as to avoid as much as possible the width of the ring body 401 where the cutting plane 411 is located being too small, which leads to a reduction in the strength of the ring body 401, thereby increasing the overall strength and stability of the ring body 401.

[0059] In one embodiment, the anti-separation structure includes a positioning ear portion 422, and the clamping lug 420 also includes a connecting portion 421 connected to the outer peripheral wall 410, wherein the connecting portion 421 is protruding from the cutting plane 411, and the positioning ear portion 422 is connected to an end of the connecting portion 421 that is away from the outer peripheral wall 410. The positioning ear portion 422 extends from the side of the connecting portion 421 in a direction away from the connecting portion 421, so that the extending direction of the positioning ear portion 422 forms an angle with the extending direction of the connecting portion 421. The positioning ear portion 422 can be accommodated in the accommodating groove 210, so that when the clamping lug 420 of the clamping ring 400 is clamped by the medical clamp 10, the positioning ear portion 422 of the anti-separation structure can be wrapped by the medical clamp 10, that is, at least a portion of the positioning ear portion 422 can be restricted in the accommodating groove 210, so that the positioning ear portion 422 cannot move relative to the medical clamp 10 along the axial and radial directions of the ring body 401. The connecting portion 421 can stop the medical clamp 10 from moving circumferentially along the ring body 401, that is, the positioning ear portion 422 cannot move circumferentially relative to the medical clamp 10 along the ring body 401, so that the anti-detachment structure can prevent the clamping lug 420 from detaching from the accommodating groove 210 of the medical clamp 10, so as to limit the separation of the clamping lug 420 of the medical clamp 10 and the ventricular connecting assembly 30, increase the connection strength between the medical clamp 10 and the ventricular connecting assembly 30, and reduce the probability of the medical clamp 10 loosening from the ventricular connecting assembly 30.

[0060] In this embodiment, the positioning ear portion 422 protrudes from the connecting portion 421 along the circumferential direction of the ring body 401, that is, the extending direction of the positioning ear portion 422 is perpendicular to the axial direction of the ring body 401, so that the medical clamp 10 can provide a supporting force along the axial direction. In one embodiment, the positioning ear portion 422 can also protrude from the connecting portion 421 along the axial direction of the ring body 401. In this embodiment, the extending direction of the positioning ear portion 422 is substantially perpendicular to the extending direction of the connecting portion 421 to facilitate processing. In one embodiment, the extending direction of the positioning ear portion 422 and the extending direction of the connecting portion 421 can be an acute angle or an obtuse angle.

[0061] In this embodiment, the anti-separation structure only includes the positioning ear portion 422. In one embodiment, in addition to the clamping lug 420, for example, the anti-separation structure also includes a stopper plate disposed on the side of the connecting portion 421 away from the sewing ring 300, and the stopper plate can stop the medical clamp 10 from moving axially along the ring body 401. In other embodiments, the anti-separation structure may also include other structures to meet the purpose of preventing the clamping lug 420 from being separated from the receiving groove 210 of the medical clamp 10.

[0062] Optionally, the clamping ring 400 and the clamping lug 420 are an integral structure, and the connecting portion 421 and the positioning ear 422 are an integral structure, so as to improve the structural strength of the clamping lug 420, improve the reliability of the medical clamp 10 clamping the clamping lug 420, and improve the connection strength between the medical clamp 10 and the clamping ring 400.

[0063] In one embodiment, the connecting portion 421 has a first surface 4211 and a second surface 4212 spaced apart along the circumference of the ring body 401, the first surface 4211 and the second surface 4212 are two side surfaces of the connecting portion 421 in the circumferential direction, the first surface 4211 and the second surface 4212 are arranged back to back, and the first surface 4211 and the second surface 4212 are both connected to the outer peripheral wall 410. At least one of the first surface 4211 and the second surface 4212 is provided with a positioning ear 422 protruding along the circumference of the ring body 401, and the positioning ear 422 can be accommodated in the accommodating groove 210, so that the medical clamp 10 can clamp the clamping ring 400.

[0064] In one embodiment, a first fillet 423 is provided at a connection between at least one of the first surface 4211 and the second surface 4212 and the peripheral wall 410. Exemplarily, a first fillet 423 is provided at a connection between the first surface 4211 and the second surface 4212 and the peripheral wall 410. The first surface 4211 and the second surface 4212 are both smoothly transitioned to the tangent plane 411 through the first fillet 423.

[0065] The first fillet 423 can eliminate deformation or breakage caused by internal stress between the clamping lug 420 and the cutting plane 411, increase the connection strength between the clamping lug 420 and the cutting plane 411 of the clamping ring 400, and reduce the probability of the clamping lug 420 breaking from the cutting plane 411 of the ring body 401 when the medical clamp 10 applies force to the clamping lug 420.

[0066] Please continue reading Figures 4 to 6 In one embodiment, the positioning ear portion 422 has two first positioning side surfaces 4221 opposite to each other in the radial direction of the ring body 401, wherein one of the first positioning side surfaces 4221 is connected to the first surface 4211, and the other first positioning side surface 4221 is connected to the second surface 4212. The width between the two first positioning side surfaces 4221 gradually decreases along the circumference of the ring body 401 and in the direction away from the connecting portion 421, so that at least one of the first positioning side surfaces 4221 forms a first guide surface, wherein the first guide surface is an inclined surface, that is, there is a certain angle between the first guide surface and the tangent plane 411, so that the first guide surface can play a guiding role, and facilitates guiding the positioning ear portion 4222 into the receiving groove 210. In this embodiment, both first positioning side surfaces 4221 form the first guide surface. In other embodiments, one of the first positioning side surfaces 4221 forms the first guide surface, and the other can be a plane.

[0067] The positioning ear portion 422 also has two second positioning side surfaces 4222 facing each other along the axial direction of the ring body 401. The connection between the first positioning side surface 4221 and the second positioning side surface 4222 is provided with an arc surface to avoid the generation of corners or sharp edges at the connection between the first positioning side surface 4221 and the second positioning side surface 4222, thereby preventing medical staff or patients from being scratched. The thickness between the two second positioning side surfaces 4222 gradually decreases along the circumference of the ring body 401 and in the direction away from the connection portion 421, so that at least one of the second positioning side surfaces 4222 forms a second guide surface, wherein the second guide surface is an inclined surface, that is, there is a certain angle between the second guide surface and the upper surface of the sewing ring 300 (the surface for installing the clamping ring 400), so that the second guide surface can play a guiding role, further facilitating the positioning ear portion 422 to be guided into the receiving groove 210. In this embodiment, both second positioning side surfaces 4222 form second guide surfaces. In other embodiments, one of the second positioning side surfaces 4222 forms a second guide surface, and the other may be a plane, ie, parallel to the upper surface of the sewing ring 300 .

[0068] The positioning ear portion 422 further has a first positioning surface 4225 and a second positioning surface 4226, wherein the first positioning surface 4225 is a surface of the positioning ear portion 422 that faces away from the sewing ring 300, and the first positioning surface 4225 is connected to one of the second positioning side surfaces 4222. The second positioning surface 4226 is a surface of the positioning ear portion 422 that is close to the sewing ring 300, and is connected to the other second positioning side surface 4222. Both the first positioning surface 4225 and the second positioning surface 4226 can fit with the groove wall of the accommodating groove 210.

[0069] In one embodiment, there are two positioning ears 422. For ease of description, the two positioning ears 422 are respectively recorded as a first ear 4223 and a second ear 4224. The first ear 4223 and the second ear 4224 are both opposite to the cutting plane 411. The first ear 4223 and the second ear 4224 are disposed on opposite sides of the connecting portion 421 and are symmetrical, that is, the first ear 4223 and the second ear 4224 have the same structure.

[0070] In other embodiments, the number of the positioning ear 422 may be one, and accordingly, the number of the receiving groove 210 is also one, and the position of the receiving groove 210 on the medical clamp 10 corresponds to the position of the positioning ear 422 on the clamping lug 420, so that the positioning ear 422 can be accommodated in the receiving groove 210. The side of the clamping lug 420 where the positioning ear 422 is not provided may be provided as a plane, and accordingly, the corresponding position of the medical clamp 10 is also a plane, so that when the medical clamp 10 clamps the clamping ring 400, one side of the medical clamp 10 is the cooperation of the positioning ear 422 and the receiving groove 210, and the other side is the cooperation of two planes, which can also prevent the clamping lug 420 from detaching from the receiving groove 210 of the medical clamp 10.

[0071] The connection between the first positioning side surface 4221 of the positioning ear 422 facing the peripheral wall 410 and the connecting portion 421 has a first concave arc surface 425, that is, the connection between one of the first positioning side surfaces 4221 and the first surface 4211 has a first concave arc surface 425, and the first concave arc surface 425 can abut against the medical clamp 10. The connection between the first positioning side surface 4221 of the positioning ear 422 facing the peripheral wall 410 and the connecting portion 421 also has a second concave arc surface 426, that is, the connection between the other first positioning side surface 4221 and the second surface 4212 has a second concave arc surface 426, and the second concave arc surface 426 can also abut against the medical clamp 10. By abutting the first concave arc surface 425 and the second concave arc surface 426 against the medical clamp 10, the contact area between the clamping portion 200 and the clamping lug 420 can be increased, thereby increasing the connection strength between the medical clamp 10 and the clamping ring 400, thereby achieving reliable cooperation between the medical clamp 10 and the ventricular connection assembly 30.

[0072] See also Figure 2 The ventricular connection assembly 30 further includes a locking assembly 600, which has a locking state and a loose state. When the locking assembly 600 is in the locking state, the locking assembly 600 can drive the ring body 401 to retract radially inward, so that the ring body 401 clamps the blood pump 5 ( Fig.15 when the locking assembly 600 is in a released state, the retracted state of the ring body 401 can be released, so that the ring body 401 expands in its radial direction under its own elasticity to release the inlet tube.

[0073] See also Figure 2 and Figure 5The locking assembly 600 includes a connecting member 610 and a locking member 620 rotatably connected to the connecting member 610, and the connecting member 610 is connected to the second connecting end 405b. The locking member 620 includes a rotating portion 621, and the rotating portion 621 is rotatably connected to an end of the connecting member 610 away from the second connecting end 405b, and the rotating portion 621 can rotatably abut against the first connecting end 405a. When the locking member 620 rotates, the first connecting end 405a and the second connecting end 405b can be brought closer to each other to reduce the inner diameter of the ring body 401, so that the ring body 401 can clamp the inlet pipe.

[0074] In some embodiments, the rotating portion 621 is provided with a cam structure, and the cam structure can be rotatably abutted against the side of the first connection end 405a away from the second connection end 405b, so that when the rotating portion 621 rotates, the cam structure can push the first connection end 405a to move in a direction close to the second connection end 405b to reduce the inner diameter of the ring body 401. In other embodiments, the rotating portion 621 is configured to be cam-shaped, and the rotating portion 621 can be rotatably abutted against the side of the first connection end 405a away from the second connection end 405b, so that when the rotating portion 621 rotates, it can push the first connection end 405a to move in a direction close to the second connection end 405b to reduce the inner diameter of the ring body 401.

[0075] The locking member 620 further includes a locking protrusion 622, which is disposed at one end of the locking member 620 away from the rotating portion 621. A matching portion 4052 is disposed at one side of the second connecting end 405b away from the connecting member 610, and the locking protrusion 622 can be engaged with the matching portion 4052. The locking protrusion 622 is engaged with the matching portion 4052 to prevent the distance between the first connecting end 405a and the second connecting end 405b from increasing, so as to maintain the distance between the first connecting end 405a and the second connecting end 405b unchanged, so as to maintain the ring body 401 in a retracted state, thereby clamping and fixing the inlet pipe.

[0076] As an implementation mode, an independent rotating shaft 630 can be provided, and the rotating shaft 630 can be movably provided in the locking member 620 and the connecting member 610; or the rotating shaft 630 is fixedly connected to the locking member 620, and the connecting member 610 is rotatably connected to the rotating shaft 630; or the rotating shaft 630 is rotatably connected to the locking member 620 and fixedly connected to the connecting member 610. In this embodiment, the clamping lug 420, the connecting end 405, and the locking assembly 600 are all arranged at intervals along the circumferential direction of the ring body 401, so that the rotation of the connecting member 610 will not affect the clamping operation of the clamping lug 420, which is conducive to the cooperation between the clamping lug 420 and the medical clamp 10.

[0077] Conventional medical clamps are clamped on opposite sides of the outer peripheral wall of the clamp ring 400 by the clamping part, so a large-sized medical clamp is required, which requires a large incision in the chest cavity. In addition, when the medical clamp clamps the ventricular connection assembly, the medical clamp will expand to a diameter larger than the clamp ring 400, which requires a large operating space and is not easy to operate in a narrow chest cavity.

[0078] See also Figure 1 , Fig. 9 and Fig.10 To this end, the present application also provides a medical clamp 10, which can clamp the ventricular connection assembly 30 of any of the above embodiments. The medical clamp 10 includes a clamp handle 100 and a clamping portion 200. The clamp handle 100 includes a first clamp body 110 and a second clamp body 120. The first clamp body 110 and the second clamp body 120 are rotatably connected so that the first clamp body 110 can be opened or clamped relative to the second clamp body 120. The clamping portion 200 includes a first clamping end 220 and a second clamping end 230. The first clamping end 220 is connected to the first clamp body 110, and the second clamping end 230 is connected to the second clamp body 120. The second clamping end 230 can cooperate with the first clamping end 220 to clamp the clamping lug 420 of the ventricular connection assembly 30. At least one of the first clamping end 220 and the second clamping end 230 is provided with a receiving groove 210, and the receiving groove 210 can accommodate at least a portion of the clamping lug 420 to engage and position with the clamping lug 420. When the medical clamp 10 clamps the clamping ring 400, the receiving groove 210 can cooperate with the anti-detachment structure to prevent the clamping lug 420 from detaching from the receiving groove 210.

[0079] The clamp handle 100 is the main structure of the medical clamp 10, and the clamp handle 100 is for the operator to clamp. The clamping part 200 is arranged at the bottom of the clamp handle 100. Fig. 9 The direction shown is a reference, the upper part of the medical clamp 10 is the top, the lower part is the bottom, and the direction shown by the top and the bottom is the first direction Z. The top and the bottom will not be described in detail later.

[0080] The clamping part 200 is the main part for connecting the medical clamp 10 with the ventricular connection component 30. Specifically, the clamping part 200 can fix the clamping lug 420 in the receiving groove 210 when the first clamp body 110 is clamped relative to the second clamp body 120, so that the end surface 260 is opposite to the outer peripheral wall 410. In other words, when the medical clamp 10 clamps the ventricular connection component 30 through the clamping part 200, the clamping lug 420 of the clamping ring 400 can be fixedly received in the receiving groove 210 of the clamping part 200, so as to improve the reliability of the connection between the medical clamp 10 and the ventricular connection component 30.

[0081] When the first clamp body 110 is opened relative to the second clamp body 120, the clamping part 200 is opened, and the clamping lug 420 can be separated from the receiving groove 210. When the first clamp body 110 is clamped relative to the second clamp body 120, the clamping part 200 is closed, and the clamping lug 420 can be received and fixed in the receiving groove 210.

[0082] The medical clamp 10 of the above-mentioned embodiment has a receiving groove 210 provided on the clamping portion 200. When the first clamp body 110 of the clamp handle 100 is clamped relative to the second clamp body 120, the clamping portion 200 can clamp the clamping lug 420 of the outer peripheral wall 410 of the ventricular connecting component 30 to accommodate and fix the clamping lug 420 in the receiving groove 210. Compared with the conventional method of clamping the side wall of the ventricular connection assembly by the clamping part, the present application can limit the separation of the clamping lug 420 from the clamping part 200 as much as possible by fixing the clamping lug 420 in the receiving groove 210 of the clamping part 200, thereby limiting the separation of the clamping lug 420 of the medical clamp 10 from the ventricular connection assembly 30 to the maximum extent, increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30, achieving reliable matching between the medical clamp 10 and the ventricular connection assembly 30, and reducing the probability of the medical clamp 10 being loosened from the ventricular connection assembly 30. In addition, the clamping part 200 clamps the clamping lug 420 on the outer peripheral wall 410 of the clamping ring 400 instead of matching with the entire outer peripheral wall 410, so a large-sized medical clamp is not required, that is, the size of the medical clamp 10 can be reduced, so that the medical clamp 10 can be adapted to small incision surgery, expanding the scope of application of the medical clamp 10. When the medical clamp 10 clamps the ventricular connection assembly 30, the medical clamp 10 only needs to be opened to a width greater than the clamping lug 420, and does not need to be expanded to a diameter greater than the clamping ring 400. The medical clamp 10 requires a smaller operating space, which is conducive to operation in a narrow chest cavity, thereby helping to reduce the difficulty of the blood pump implantation surgery.

[0083] See also Figure 3 and Fig.10 In one embodiment, the receiving groove 210 includes a plurality of groove walls connected end to end, and the groove walls can surround the anti-separation structure received in the receiving groove 210 and have an interference fit with the anti-separation structure.

[0084] That is, the positioning ear 422 of the anti-detachment structure is received in the receiving groove 210, and the outer wall of the positioning ear 422 abuts against the groove wall of the receiving groove 210. In this way, the medical clamp 10 can reliably clamp the clamping lug 420, prevent the clamping lug 420 from shaking in the receiving groove 210, increase the connection strength between the medical clamp 10 and the ventricular connection component 30, improve the reliability of the medical clamp 10 clamping the ventricular connection component 30, and reduce the probability of the medical clamp 10 detaching from the ventricular connection component 30. In other embodiments, the clamping lug 420 can also be fixedly received in the receiving groove 210 by bonding or clamping.

[0085] Please also read Fig.11 In this embodiment, the plurality of groove walls include a first side wall 2101, a second side wall 2102, a third side wall 2103 and a fourth side wall 2104, wherein the first side wall 2101, the second side wall 2102, the third side wall 2103 and the fourth side wall 2104 are connected end to end, that is, the first side wall 2101 is opposite to the third side wall 2103, the second side wall 2102 is opposite to the fourth side wall 2104, and the second side wall 2102 is connected between the first side wall 2101 and the third side wall 2103, so that the accommodating groove 210 is substantially a rectangular groove. When the medical clamp 10 clamps the positioning ear 422, the first side wall 2101 can be opposite to one of the first positioning side surfaces 4221, and the third side wall 2103 can be opposite to the other first positioning side surface 4221, and the first side wall 2101 and the third side wall 2103 can limit the radial movement of the positioning ear 422 along the ring body 401. The second side wall 2102 is opposite to the first positioning surface 4225, and the fourth side wall 2104 is opposite to the second positioning surface 4226. The second side wall 2102 and the fourth side wall 2104 can limit the axial movement of the positioning ear portion 422 along the ring body 401. The connecting portion 421 can stop the medical clamp 10 from moving in the circumferential direction of the ring body 401, that is, the positioning ear portion 422 and the connecting portion 421 cannot move relative to the medical clamp 10 in the circumferential direction of the ring body 401, so that the anti-separation structure can prevent the clamping lug 420 from being separated from the receiving groove 210 of the medical clamp 10, so as to limit the separation of the clamping lug 420 of the ventricular connection assembly 30 from the medical clamp 10.

[0086] See also Figures 10 to 13In one embodiment, the end surface 260 includes a first end surface 224 provided at the first clamping end 220, and a second end surface 234 provided at the second clamping end 230, and both the first end surface 224 and the second end surface 234 can abut against the outer peripheral wall 410 of the clamping ring 400 of the ventricular connection component 30. In this embodiment, the first end surface 224 and the second end surface 234 are coplanar, which can increase the contact area between the end surface 260 and the outer peripheral wall 410. For example, after the clamping portion 200 clamps the clamping lug 420, the clamping portion 200 abuts against the tangent plane 411 of the ventricular connection component 30 through the first end surface 224 and the second end surface 234, so that the connection between the medical clamp 10 and the clamping ring 400 is more stable, and the connection strength between the medical clamp 10 and the ventricular connection component 30 is increased.

[0087] In one embodiment, the end surface 260 is provided with an anti-slip portion 261, and the anti-slip portion 261 can abut against the outer peripheral wall 410. When the clamping portion 200 clamps the clamping lug 420, the end surface 260 can abut against the outer peripheral wall 410 of the ventricular connection component 30 through the anti-slip portion 261, thereby increasing the friction between the medical clamp 10 and the clamping ring 400, and further reducing the probability of the medical clamp 10 and the ventricular connection component 30 being separated.

[0088] Optionally, at least one of the first end face 224 and the second end face 234 is provided with an anti-slip portion 261. In this embodiment, both the first end face 224 and the second end face 234 are provided with an anti-slip portion 261. Exemplarily, the anti-slip portion 261 is an anti-slip groove, and the anti-slip groove is recessed and arranged on the end face 260. The end face 260 abuts against the outer peripheral wall 410 through the recessed anti-slip groove, thereby increasing the friction between the medical clamp 10 and the clamping ring 400. Of course, in other embodiments of the present application, the anti-slip portion 261 may also be an anti-slip convex portion, an anti-slip coating, or other structural forms that can play an anti-slip role.

[0089] In one embodiment, the first clamping end 220 includes a first inner side surface 221 facing the second clamping end 230 and a first outer side surface 222 away from the second clamping end 230. The first clamping end 220 also includes a first abutting surface 223, and the first abutting surface 223 can abut against the connecting portion 421 of the clamping lug 420, specifically, the first abutting surface 223 can abut against the first surface 4211 of the connecting portion 421. The first abutting surface 223 and the first inner side surface 221 are located on the same side of the first clamping end 220, and the first end surface 224 is connected between the first abutting surface 223 and the first outer side surface 222.

[0090] See also Fig.13In one embodiment, the first inner side surface 221, the first outer side surface 222 and the first abutting surface 223 are parallel to each other. There is a first distance h1 between the first abutting surface 223 and the first outer side surface 222, and there is a second distance h2 between the first inner side surface 221 and the first outer side surface 222, wherein the first distance h1 is smaller than the second distance h2. In other words, the distance between the first inner side surface 221 and the second clamping end 230 is smaller than the distance between the first abutting surface 223 and the second clamping end 230, which can increase the depth of a portion of the accommodating groove 210 to better accommodate the clamping lug 420, reduce the probability of the medical clamp 10 and the clamping lug 420 being loosened, and facilitate the clamping portion 200 to clamp the clamping lug 420.

[0091] In one embodiment, the first clamping end 220 is provided with the receiving groove 210, and the receiving groove 210 is a blind hole recessed from the first inner side surface 221 to the direction away from the second clamping end 230 into the first clamping end 220, so that the groove wall of the receiving groove 210 can abut against the end of the positioning ear 422, further increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30. In other embodiments, the receiving groove 210 can also be a through hole recessed from the first inner side surface 221 to the direction away from the second clamping end 230 into the first clamping end 220.

[0092] See also Fig. 9 and Fig.10 In one embodiment, both the first clamping end 220 and the second clamping end 230 are provided with a receiving groove 210, and the notches of the two receiving grooves 210 are arranged opposite to each other, so that when the first clamp body 110 and the second clamp body 120 are clamped, the clamping lug 420 can be received and fixed in the receiving groove 210 of the clamping portion 200. For the convenience of description, the two receiving grooves 210 are respectively recorded as a first groove 211 and a second groove 212, wherein the first groove 211 is arranged at the first clamping end 220, and the second groove 212 is arranged at the second clamping end 230, and the notch of the first groove 211 is arranged opposite to the notch of the second groove 212.

[0093] In other embodiments, one of the first clamping end 220 and the second clamping end 230 is provided with a receiving groove 210, that is, the number of the receiving groove 210 is one, and accordingly, the number of the positioning ear 422 is also one, and the position of the receiving groove 210 on the medical clamp 10 corresponds to the position of the positioning ear 422 on the clamping lug 420. For example, when the positioning ear 422 only includes the first ear 4223, the receiving groove 210 can be provided on the first clamping end 220. When the medical clamp 10 clamps the clamping ring 400, the first ear 4223 cooperates with the receiving groove 210 to prevent the clamping lug 420 from detaching from the receiving groove 210 of the medical clamp 10.

[0094] The first clamping end 220 is disposed at the bottom of the first pliers body 110, and the second clamping end 230 is disposed at the bottom of the second pliers body 120, and the first clamping end 220 and the second clamping end 230 are disposed opposite to each other. When the first pliers body 110 is opened relative to the second pliers body 120, the first clamping end 220 and the second clamping end 230 are separated from each other, and when the first pliers body 110 is clamped relative to the second pliers body 120, the first clamping end 220 and the second clamping end 230 are close to each other, and at this time, the first clamping end 220 and the second clamping end 230 can clamp the clamping lug 420.

[0095] When the first clamp body 110 and the second clamp body 120 are clamped, part of the clamping lug 420 is located in the first groove 211, and the other part is located in the second groove 212. In this way, the inner walls of the first groove 211 and the second groove 212 can abut against the clamping lug 420, so that the clamping part 200 clamps the clamping lug 420.

[0096] Please continue reading Fig. 9 Optionally, the pliers handle 100 further includes a pin 150, and the first pliers body 110 and the second pliers body 120 are cross-arranged and hinged through the pin 150. That is, the first pliers body 110 and the second pliers body 120 are both rotatably connected to the pin 150, and the first pliers body 110 and the second pliers body 120 can both rotate around the pin 150. During the rotation of the first pliers body 110 and the second pliers body 120 around the pin 150, the first clamping end 220 and the second clamping end 230 can approach or move away from each other, thereby achieving the clamping or opening of the first pliers body 110 and the second pliers body 120.

[0097] In one embodiment, a rotation axis L is provided at the connection between the first clamp body 110 and the second clamp body 120, wherein the rotation axis L is the central axis of the pin 150. One of the planes passing through the rotation axis L is recorded as a reference plane S, and the first clamp end 220 and the second clamp end 230 are located on both sides of the reference plane S. The first clamp end 220 and the second clamp end 230 are symmetrically arranged about the reference plane S, that is, the first clamp end 220 and the second clamp end 230 have the same structure, so that the force applied by the operator can be uniformly applied to the first clamp end 220 and the second clamp end 230, further facilitating the medical clamp 10 to reliably clamp the clamping lug 420, thereby further improving the reliability of the medical clamp 10 clamping the ventricular connection assembly 30. The first clamp end 220 and the second clamp end 230 have the same structure, and the first clamp end 220 and the second clamp end 230 can also be manufactured through the same process, reducing the difficulty of processing and manufacturing the medical clamp 10. Of course, in other embodiments of the present application, the structures of the first clamping end 220 and the second clamping end 230 may be different.

[0098] Optionally, the first clamp body 110 and the first clamp end 220 are an integral structure, and the second clamp body 120 and the second clamp end 230 are an integral structure. In this way, the structural strength of the first clamp body 110 and the first clamp end 220 can be improved, and the structural strength of the second clamp body 120 and the second clamp end 230 can be improved, thereby improving the stability of the medical clamp 10 during use.

[0099] See also Figures 10 to 13 The second clamping end 230 further includes a second inner side surface 231 and a second outer side surface 232. The second inner side surface 231 and the second outer side surface 232 are disposed opposite to each other at the second clamping end 230, and the first inner side surface 221 and the second inner side surface 231 are two opposite surfaces of the first clamping end 220 and the second clamping end 230. It is worth noting that the first clamping end 220 and the second clamping end 230 have the same structure, and the following description will only focus on the structure of the first clamping end 220.

[0100] In one embodiment, the second clamping end 230 further includes a second abutting surface 233, the first abutting surface 223 and the second abutting surface 233 are parallel and oppositely arranged, and the second abutting surface 233 is arranged close to the second end 250, and the second abutting surface 233 is also parallel to the second outer side surface 232. When the medical clamp 10 clamps the clamping lug 420, the first abutting surface 223 and the second abutting surface 233 can abut the clamping lug 420, wherein the first abutting surface 223 can abut against the first surface 4211 of the connecting portion 421, and the second abutting surface 233 can abut against the second surface 4212 of the connecting portion 421, and the inner walls of the first groove 211 and the second groove 212 can also abut against the clamping lug 420, so as to fix the clamping lug 420 in the receiving groove 210.

[0101] See also Fig. 9 , Fig.12 and Fig.13 In one embodiment, the clamp handle 100 further includes a first handle section 130 and a second handle section 140, the second handle section 140 is connected between the first handle section 130 and the clamping portion 200, and the clamping portion 200 and the first handle section 130 are arranged on opposite sides of the second handle section 140. The top of the second handle section 140 is connected to the first handle section 130, and the bottom of the second handle section 140 is connected to the clamping portion 200. The first handle section 130 and the second handle section 140 are arranged to facilitate the operator to operate the medical clamp 10.

[0102] It is worth noting that the handle 100 includes the first clamp body 110 and the second clamp body 120, and the handle 100 includes the first handle section 130 and the second handle section 140, which are descriptions of the structure of the handle 100 from different dimensions. The handle 100 includes the first handle section 130 and the second handle section 140 to describe the structure of the medical clamp 10 from a first direction Z, and the handle 100 includes the first clamp body 110 and the second clamp body 120 to describe the structure of the medical clamp 10 from a second direction Y. The first direction Z is as follows: Fig. 9 and Fig.12 As shown, the first direction Z is the direction of the top and the bottom, and the second direction Y is as shown Fig. 9 As shown, the second direction Y is Fig. 9 The left and right directions shown, that is, Fig.12 The front-to-back direction. With the clamping portion 200 as a reference, the first direction Z is the thickness direction of the clamping portion 200, and the second direction Y is the width direction of the clamping portion 200. That is, the first pliers body 110 and the second pliers body 120 both include a first handle segment 130 and a second handle segment 140, and the first pliers body 110 and the second pliers body 120 are rotatably connected at their respective second handle segments 140, and the first pliers body 110 and the second pliers body 120 are clamped or opened by the first handle segment 130 approaching or moving away from each other to realize the first clamping end 220 and the second clamping end 230.

[0103] In one embodiment, the clamping portion 200 and the first handle section 130 extend in opposite directions. Fig.12 In the figure, the clamping portion 200 extends to the left in a direction away from the second handle segment 140, and the first handle segment 130 extends to the right in a direction away from the second handle segment 140. That is, the clamping portion 200 and the first handle segment 130 are located on both sides of the second handle segment 140 in the third direction X. In this way, the operating position of the medical clamp 10 by the operator and the surgical position of the medical clamp 10 on the patient are located on both sides of the second handle segment 140, which is convenient for the operator to operate the medical clamp 10 and can prevent the operator from accidentally touching the patient when clamping the first handle segment 130.

[0104] See also Fig. 9 and Fig.12 In one embodiment, the angle between the second handle section 140 and the clamping portion 200 is θ1, and 80°≤θ1≤100°. With this design, the overall height of the handle 100 along the first direction Z can be increased while the overall length of the handle 100 remains unchanged, so that the operator has a larger operating space and is more convenient for the operator to operate the medical clamp 10.

[0105] Exemplarily, the second handle section 140 is perpendicular to the clamping portion 200. After being arranged in this manner, the operator's operating space can be larger, and the operator can operate the medical clamp 10 more conveniently.

[0106] In one embodiment, the angle between the second handle segment 140 and the first handle segment 130 is θ2, and 90°<θ2<180°. In other words, the angle between the second handle segment 140 and the first handle segment 130 is an obtuse angle. In this way, the first handle segment 130 can extend toward the operator, further increasing the operable space and facilitating the operator to operate the medical clamp 10.

[0107] Optionally, the first handle section 130, the second handle section 140 and the clamping portion 200 are an integrated structure, which can improve the structural strength of the medical clamp 10, and at the same time facilitate the molding and processing of the medical clamp 10, thereby reducing the processing difficulty.

[0108] See also Fig. 9 , Fig.12 and Fig.13 In one embodiment, the clamping portion 200 further has a first end 240 and a second end 250 opposite to each other, the second end 250 is connected to the clamp handle 100, the first end 240 is a free end, the first end surface 224 is disposed at the first end 240, and the second end surface 234 is disposed at the second end 250. In other words, the two opposite ends of the clamping portion 200 are the first end 240 and the second end 250, respectively, the clamping portion 200 is connected to the clamp handle 100 via the second end 250, and the first end 240 of the clamping portion 200 extends in a direction away from the clamp handle 100. The connecting line direction of the first end 240 and the second end 250 is the third direction X, the third direction X is the length direction of the clamping portion 200, and the extending direction of the first end 240 and the second end 250 is also the extending direction of the clamping portion 200. The definitions of the first direction Z, the second direction Y, and the third direction X will not be repeated in the following text.

[0109] See also Fig.10 and Fig.13 In one embodiment, the first clamping end 220 further includes a second fillet 225, which connects the first abutting surface 223 and the first end surface 224, that is, the second fillet 225 is provided at the connection between the first abutting surface 223 and the first end surface 224. The second clamping end 230 further includes a third fillet 235, which connects the second abutting surface 233 and the second end surface 234. That is, the third fillet 235 is provided at the connection between the second abutting surface 233 and the second end surface 234.

[0110] That is, the first abutting surface 223 and the first end surface 224 are smoothly transitioned through the second fillet 225, and the second abutting surface 233 and the second end surface 234 are smoothly transitioned through the third fillet 235. When the clamping lug 420 is fixedly received in the accommodating groove 210, the first positioning side surface 4221 of the clamping lug 420 abuts against the second fillet 225, and the second positioning side surface 4222 abuts against the third fillet 235. Through the guidance of the second fillet 225 on the first positioning side surface 4221, and the guidance of the third fillet 235 on the second guide surface, it is convenient for the positioning ear 422 to move into the first groove 211 and the second groove 212, so as to facilitate the cooperation between the accommodating groove 210 and the clamping lug 420.

[0111] In one embodiment, the accommodating groove 210 further includes a first groove section 213 and a second groove section 214 distributed along the extending direction of the clamping portion 200, the first groove section 213 penetrates the first abutting surface 223, the first groove section 213 is connected to the second groove section 214, and the second groove section penetrates the first inner side surface 221. The width of the first groove section 213 is smaller than the width of the second groove section 214. The accommodating groove 210 is divided into the first groove section 213 and the second groove section 214 along the third direction X, the first groove section 213 penetrates part of the first abutting surface 223, the second groove section 214 is located on a side of the first groove section 213 away from the first abutting surface 223, and penetrates part of the first inner side surface 221, and the first groove section 213 is connected to the second groove section 214.

[0112] Moreover, the dimension of the first groove section 213 along the second direction Y is smaller than the dimension of the second groove section 214 along the second direction Y, that is, the width of the first groove section 213 is smaller than the width of the second groove section 214. That is, in the direction from the first end 240 to the second end 250, the accommodating groove 210 is a structural form that is narrow at first and then wide. In this way, after the clamping lug 420 is fixedly accommodated in the accommodating groove 210, the narrower part of the accommodating groove 210 can block the clamping lug 420 therein, so that the clamping lug 420 is not easy to slip out of the accommodating groove 210, thereby reducing the probability of the medical clamp 10 and the ventricular connection assembly 30 being separated.

[0113] Please continue reading Fig.13In one embodiment, the first clamping end 220 also includes a first abutting portion 226, and the second clamping end 230 also includes a second abutting portion 236. The first abutting portion 226 is arranged at the connection between the first abutting surface 223 and the first end surface 224, and is close to the first groove 211. The second abutting portion 236 is arranged at the connection between the second abutting surface 233 and the second end surface 234, and is close to the second groove 212. The first abutting portion 226 and the second abutting portion 236 both abut against the clamping lug 420. Specifically, when the clamping lug 420 is fixedly received in the accommodating groove 210, the first abutting portion 226 can abut against the first concave arc surface 425 of the clamping lug 420, so that the first abutting portion 226 is not easily separated from the groove formed by the first concave arc surface 425, and the second abutting portion 236 can abut against the second concave arc surface 426 of the clamping lug 420, so that the second abutting portion 236 is not easily separated from the groove formed by the second concave arc surface 426, thereby increasing the connection strength between the medical clamp 10 and the ventricular connecting assembly 30.

[0114] Please continue reading Figure 1 and Fig. 9 In one embodiment, the first clamp body 110 has a first clamp hole 111, and the first clamp hole 111 is located at an end of the first clamp body 110 away from the first clamp end 220. The second clamp body 120 has a second clamp hole 121, and the second clamp hole 121 is located at an end of the second clamp body 120 away from the second clamp end 230. The first clamp hole 111 and the second clamp hole 121 can be inserted by the operator's fingers to achieve clamping of the medical clamp 10.

[0115] In one embodiment, the side of the first caliper body 110 has a first rack 112, and the first rack 112 extends toward the second caliper body 120. The side of the second caliper body 120 has a second rack 122, and the second rack 122 extends toward the first caliper body 110. The teeth of the first rack 112 and the teeth of the second rack 122 can engage or separate.

[0116] When the first rack 112 is separated from the second rack 122, at least one of the first clamp body 110 and the second clamp body 120 can rotate relative to the other to achieve the clamping or opening of the medical clamp 10. After the first clamp body 110 and the second clamp body 120 complete the clamping or opening action, the first rack 112 and the second rack 122 are engaged, so that the relative position of the first clamp body 110 and the second clamp body 120 is fixed. At this time, the first clamp body 110 and the second clamp body 120 can maintain the current clamping or opening state, so as to facilitate further operation by the operator.

[0117] Optionally, the first rack 112 is located at one end of the first pliers body 110 away from the first clamping end 220, and the second rack 122 is located at one end of the second pliers body 120 away from the second clamping end 230. In other words, the first rack 112 is located at one end of the first pliers body 110 close to the first clamping hole 111, and the second rack 122 is located at one end of the second pliers body 120 close to the second clamping hole 121.

[0118] The medical clamp 10 of the present application, by providing a receiving groove 210 on the clamping portion 200 to accommodate the clamping lug 420 that fixes the outer peripheral wall 410 of the ventricular connecting component 30, the medical clamp 10 can clamp the clamping lug 420, limit the separation of the clamping lug 420 and the clamping portion 200, and thus maximally limit the separation of the clamping lug 420 of the medical clamp 10 and the ventricular connecting component 30, increase the connection strength between the medical clamp 10 and the ventricular connecting component 30, achieve reliable cooperation between the medical clamp 10 and the ventricular connecting component 30, and reduce the probability of the medical clamp 10 loosening from the ventricular connecting component 30.

[0119] Please continue reading Figure 1 and Fig. 9 The present application also provides a ventricular connection kit 1, comprising the ventricular connection component 30 in the above-mentioned embodiment and the medical clamp 10 as in any of the above-mentioned embodiments, at least part of the clamping lug 420 of the ventricular connection component 30 can be received in the receiving groove 210 of the medical clamp 10 to be engaged and fixed with the medical clamp 10.

[0120] The ventricular connection assembly 30 includes a sewing ring 300 and a clamping ring 400, and the clamping ring 400 is arranged on the sewing ring 300. The outer peripheral wall 410 has a clamping lug 420, and the clamping part 200 can clamp the clamping lug 420. After the medical clamp 10 clamps the clamping lug 420, the clamping part 200 receives and fixes the clamping lug 420 through the accommodating groove 210. At this time, the medical clamp 10 can clamp the clamping lug 420 on the side of the clamping ring 400 to achieve a clamping connection with the clamping ring 400, thereby improving the reliability of the connection between the medical clamp 10 and the ventricular connection assembly 30.

[0121] The ventricular connection kit 1 of the present application adopts the receiving groove 210 of the medical clamp 10 to accommodate the clamping lug 420 of the outer peripheral wall 410 of the fixed ventricular connection component 30, so that the medical clamp 10 can clamp the clamping ring 400, increase the connection strength between the medical clamp 10 and the ventricular connection component 30, and reduce the probability of the medical clamp 10 being loosened from the ventricular connection component 30. Moreover, after the medical clamp 10 is clamped and matched with the clamping lug 420, the size of the clamping part 200 can be reduced, so that the medical clamp 10 can adapt to small incision surgery, expanding the scope of application of the medical clamp 10.

[0122] When the ventricular connection component 30 is sutured to the ventricular wall, the medical clamp 10 clamps the clamping lug 420 of the peripheral wall 410, and the ventricular connection component 30 is supported and positioned by the medical clamp 10, so that the ventricular connection component 30 is conveniently sutured to the heart, and the installation difficulty of the ventricular connection component 30 is reduced. After the ventricular connection kit 1 of the present application uses the medical clamp 10 of the above embodiment to install the ventricular connection component 30, the ventricular connection component 30 can be reliably clamped, and the probability of the medical clamp 10 being loosened from the ventricular connection component 30 is reduced.

[0123] See also Fig.10 , Figures 14 to 17 In one embodiment, the clamping ring 400 of the ventricular connection assembly 30 is used to clamp the blood pump 5 to fix the blood pump 5 to the heart. The inlet tube 501 of the blood pump 5 can pass through the clamping ring 400, and the clamping ring 400 can clamp the inlet tube 501, so that the blood pump 5 is fixed to the ventricular connection assembly 30. The medical clamp 10 clamps the clamping lug 420 of the clamping ring 400, so as to facilitate fixing the blood pump 5 to the heart.

[0124] In one embodiment, there is a first predetermined gap 310 between the upper surface of the sewing ring 300 and the lower surface 427 of the clamping lug 420. After the ventricular connection assembly 30 is sutured to the ventricular wall, the sewing ring 300 fits the ventricular wall so that the sewing ring 300 is roughly arc-shaped, so that the first predetermined gap 310 between the upper surface of the sewing ring 300 and the lower surface 427 of the clamping lug 420 is roughly narrow on the left and wide on the right (e.g., Fig.17 as shown).

[0125] Please also read Fig.18 In one embodiment, there is a second predetermined gap 503 between the pump housing side 502 of the blood pump 5 and the upper surface 428 of the clamping lug 420. The blood pump 5 is buckled onto the clamping ring 400 of the ventricular connection assembly 30, so that the second predetermined gap 503 between the pump housing side 502 of the blood pump 5 and the upper surface 428 of the clamping lug 420 is also substantially narrow on the left and wide on the right (e.g., Fig.18 as shown).

[0126] In one embodiment, the thickness of the clamping portion 200 gradually decreases. In other words, the size of the clamping portion 200 along the third direction X gradually decreases. In this way, after the clamping portion 200 clamps the clamping lug 420, the clamping portion 200 can be inserted into the first predetermined gap 310 and the second predetermined gap 503 without interfering with the blood pump 5, so that the blood pump 5 can be accurately installed on the clamping ring 400 of the ventricular connection assembly 30.

[0127] Optionally, the thickness of the clamping portion 200 gradually decreases from the second end 250 to the first end 240. In other words, the thickness of the entire clamping portion 200 gradually decreases in the direction away from the clamp handle 100. Of course, in other embodiments of the present application, the thickness of the clamping portion 200 may also gradually decrease near the first end 240, that is, the thickness of part of the clamping portion 200 gradually decreases.

[0128] See also Fig.10 and Fig.14 In one embodiment, the clamping portion 200 further includes a top surface 227 and a bottom surface 228 disposed opposite to each other, the receiving groove 210 is disposed between the top surface 227 and the bottom surface 228, at least one of the top surface 227 and the bottom surface 228 is an inclined surface, and the distance between the top surface 227 and the bottom surface 228 gradually decreases in a direction away from the clamp handle 100. The top surface 227 connects the first inner side surface 221 and the first outer side surface 222 at the top, and the bottom surface 228 connects the first inner side surface 221 and the first outer side surface 222 at the bottom.

[0129] In this embodiment, the top surface 227 is an inclined surface, and the top surface 227 gradually slopes downward from the second end 250 to the first end 240, so that the distance between the top surface 227 and the bottom surface 228 gradually decreases in the direction away from the clamp handle 100. When the medical clamp 10 clamps the clamping lug 420 of the clamping ring 400, the top surface 227 of the clamping portion 200 will be embedded in the second predetermined gap 503, and the clamping portion 200 will not interfere with the blood pump 5, thereby improving the reliability of the blood pump 5 being installed on the ventricular connection assembly 30.

[0130] In this embodiment, the bottom surface 228 is also an inclined surface, and the bottom surface 228 gradually tilts upward from the second end 250 to the first end 240, so that the distance between the top surface 227 and the bottom surface 228 gradually decreases in the direction away from the clamp handle 100, so that the first end 240 of the clamping portion 200 can extend into the first predetermined gap 310 to avoid being stopped by the sewing ring 300, so that the medical clamp 10 can be properly matched with the clamping lug 420. In other embodiments, the top surface 227 is an inclined surface and the bottom surface 228 is a plane, or the top surface 227 is a plane and the bottom surface 228 is an inclined surface, which can also achieve that the medical clamp 10 can be properly matched with the clamping lug 420.

[0131] The above-mentioned embodiments only express several implementation methods of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. For ordinary technicians in this field, several modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A ventricular connection assembly, characterized in that: The ventricular connection assembly comprises: Suture ring; and A clamping ring, wherein the clamping ring is arranged on the suture ring, and the clamping ring comprises a ring body and a clamping lug; the ring body has an outer peripheral wall; the clamping lug is arranged on the outer peripheral wall and can be clamped by a medical clamp; at least part of the clamping lug can be received in a receiving groove of the medical clamp to be engaged and fixed with the medical clamp, and the clamping lug has an anti-detachment structure, and when the clamping ring is clamped by the medical clamp, the anti-detachment structure can prevent the clamping lug from detaching from the receiving groove of the medical clamp.

2. The ventricular connection assembly according to claim 1, characterized in that: The anti-detachment structure includes a positioning ear, and the clamping lug also includes a connecting portion connected to the outer peripheral wall, the positioning ear is connected to an end of the connecting portion that faces away from the outer peripheral wall, and the positioning ear extends from the side of the connecting portion in a direction away from the connecting portion, the positioning ear can be accommodated in the accommodating groove, and when the clamping ring is clamped by the medical clamp, at least a portion of the positioning ear can be confined in the accommodating groove.

3. The ventricular connection assembly according to claim 2, characterized in that: The connecting portion is connected to the outer peripheral wall, and has a first surface and a second surface spaced apart along the circumference of the ring body, and at least one of the first surface and the second surface is provided with the positioning ear portion protruding along the circumference of the ring body.

4. The ventricular connection assembly according to claim 3, characterized in that: The clamping ring also has at least one of the following features: The first surface and the second surface are both connected to the outer peripheral wall, and a first fillet is provided at a connection between at least one of the first surface and the second surface and the outer peripheral wall; The number of the positioning ears is two, and the two positioning ears are arranged on opposite sides of the connecting portion and are symmetrical; The positioning ear has two first positioning side surfaces facing each other in the radial direction of the ring body, and the width between the two first positioning side surfaces gradually decreases along the circumference of the ring body and away from the connecting portion, so that at least one of the first positioning side surfaces forms a first guide surface.

5. The ventricular connection assembly according to claim 3, characterized in that: The positioning ear portion has two first positioning side surfaces facing each other in the radial direction of the ring body, wherein: A first concave arc surface is provided at a connection between the first positioning side surface of the positioning ear portion facing the outer peripheral wall and the connecting portion, and the first concave arc surface can abut against an abutting portion of the medical clamp located at one side of the accommodating groove; And / or, the positioning ear also has two second positioning side surfaces opposite to each other in the axial direction of the ring body, and an arc surface is provided at the connection between the first positioning side surface and the second positioning side surface, and the thickness between the two second positioning side surfaces gradually decreases along the circumference of the ring body and in the direction away from the connecting portion, so that at least one of the second positioning side surfaces forms a second guide surface.

6. The ventricular connection assembly according to claim 1, characterized in that: The outer peripheral wall includes a cutting plane and an arc surface connected to the cutting plane, the clamping lug is protruded on the cutting plane along the radial direction of the ring body, the cutting plane can be abutted against the end face of the medical clamp, the ring body is provided with a mounting boss, the mounting boss protrudes in the direction away from the ring body along the radial direction of the ring body relative to the arc surface, and the cutting plane is arranged on the mounting boss; and / or the connection between the cutting plane and the arc surface is smoothly transitioned.

7. The ventricular connection assembly according to claim 1, characterized in that: The ring body further comprises a bottom wall and a top wall facing each other, the bottom wall is in contact with the sewing ring, the outer peripheral wall is connected between the bottom wall and the top wall, and the outer peripheral wall is a cylindrical surface; And / or, the ring body is provided with an opening and two connecting ends located on both sides of the opening, the ventricular connection assembly also includes a locking assembly, the locking assembly includes a connecting member and a locking member rotatably connected to the connecting member, the connecting member is connected to one of the connecting ends, the locking member can be rotatably abutted against the other connecting end, and when the locking member rotates, the two connecting ends can be brought closer to each other to reduce the inner diameter of the ring body, and the clamping lugs and the connecting ends and the locking assembly are all spaced apart along the circumferential direction of the ring body.

8. A medical clamp capable of clamping the ventricular connection assembly according to any one of claims 1 to 7, characterized in that: The medical clamp comprises: A pliers handle, the pliers handle comprising a first pliers body and a second pliers body, the first pliers body and the second pliers body being rotatably connected so that the first pliers body can be opened or clamped relative to the second pliers body; and A clamping portion, the clamping portion includes a first clamping end and a second clamping end; the first clamping end is connected to the first clamp body; the second clamping end is connected to the second clamp body, and the second clamping end can cooperate with the first clamping end to clamp the clamping lug of the ventricular connecting component; at least one of the first clamping end and the second clamping end is provided with a receiving groove, and the receiving groove can accommodate at least a part of the clamping lug to engage and position with the clamping lug, and when the medical clamp clamps the clamping ring, the receiving groove can cooperate with the anti-detachment structure to prevent the clamping lug from detaching from the receiving groove.

9. The medical clamp according to claim 8, characterized in that: The accommodating groove includes a plurality of groove walls connected end to end, and the groove walls can surround the anti-separation structure accommodated in the accommodating groove and have an interference fit with the anti-separation structure; and / or, the first clamping end includes a first inner side surface facing the second clamping end; the first clamping end is provided with the accommodating groove, and the accommodating groove is a blind hole recessed into the interior of the first clamping end from the first inner side surface in a direction away from the second clamping end; and / or, the first clamping end and the second clamping end are both provided with the accommodating groove, and the notches of the two accommodating grooves are arranged opposite to each other.

10. The medical clamp according to claim 8, characterized in that: The first clamping end includes a first inner side surface facing the second clamping end, a first outer side surface away from the second clamping end, and a first abutting surface, wherein the first abutting surface and the first inner side surface are located on the same side of the first clamping end and can abut against the connecting portion of the clamping lug; there is a first distance between the first abutting surface and the first outer side surface, and there is a second distance between the first inner side surface and the first outer side surface, and the first distance is smaller than the second distance.

11. The medical clamp according to claim 8, characterized in that: The pliers handle also includes a first handle segment and a second handle segment, the second handle segment is connected between the first handle segment and the clamping portion, and the clamping portion and the first handle segment are arranged on opposite sides of the second handle segment, the angle between the second handle segment and the clamping portion is θ1, and 80°≤θ1≤100°, and the angle between the second handle segment and the first handle segment is θ2, and 90°<θ2<180°.

12. A ventricular connection kit, characterized in that: It comprises a ventricular connection component as described in any one of claims 1 to 7 and a medical clamp as described in any one of claims 8 to 11, wherein at least a portion of the clamping lugs of the ventricular connection component can be received in the receiving groove of the medical clamp to be engaged and fixed with the medical clamp.

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