Ventricular connection assembly, medical forceps and ventricular connection kit

Abstract

The application relates to a ventricular connection assembly, a medical clamp and a ventricular connection kit. The ventricular connection assembly comprises a suture ring and a clamping ring, the clamping ring is arranged on the suture ring, the clamping ring comprises 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 the medical clamp; and the clamping lug can be at least partially accommodated in a containing groove of the medical clamp and is fixedly combined with the medical clamp. The clamping lug of the ventricular connection assembly can be clamped by the medical clamp, and the clamping lug can be at least partially accommodated in the containing groove and is fixedly combined with the medical clamp, so that the medical clamp and the clamping lug of the ventricular connection assembly are prevented from being separated, the connection strength of the medical clamp and the ventricular connection assembly is increased, and the probability of the medical clamp being loosened from the ventricular connection assembly is reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a ventricular connection component, medical clamp, and ventricular connection kit. Background Technology

[0002] During blood pump implantation surgery, medical clamps are typically used to support and position the ventricular connector to facilitate the installation of the blood pump. However, the current fit between the ventricular connector and the medical clamps is not secure, making it easy for the ventricular connector to detach from the clamps. Summary of the Invention

[0003] Therefore, it is necessary to address the current problem of weak connection between ventricular connection components and medical clamps, which makes them prone to loosening. A ventricular connection component, medical clamp, and ventricular connection kit should be provided to improve the connection strength with the ventricular connection component and reduce the probability of the medical clamp loosening from the ventricular connection component.

[0004] In a first aspect, this application provides a ventricular connection component, comprising:

[0005] Suture ring; and

[0006] A clamping ring is disposed on the suture ring. The clamping ring includes a ring body and a clamping lug. The ring body has an outer peripheral wall. The clamping lug is disposed on the outer peripheral wall and can be clamped by a medical clamp. At least a portion of the clamping lug can be received in the receiving groove of the medical clamp to engage and fix it with the medical clamp. The clamping lug has an anti-disengagement structure. When the clamping ring is clamped by the medical clamp, the anti-disengagement structure can prevent the clamping lug from disengaging from the receiving groove of the medical clamp.

[0007] In one embodiment of this application, the anti-detachment structure includes a positioning ear, and the clamping lug further includes a connecting portion connected to the outer peripheral wall. The positioning ear is connected to one end of the connecting portion 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 receiving groove, and when the clamping ring is clamped by the medical clamp, at least a portion of the positioning ear can be restricted in the receiving groove.

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

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

[0010] Both the first surface and the second surface are connected to the outer peripheral wall, and at least one of the first surface and the second surface is provided with a first rounded corner at the connection with the outer peripheral wall;

[0011] The number of positioning ears is two, and the two positioning ears are disposed on opposite sides of the connecting part and are symmetrical.

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

[0013] In one embodiment of this application, the positioning ear has two first positioning sides facing away from each other along the radial direction of the ring body, wherein:

[0014] The first positioning side facing the outer peripheral wall of the positioning ear has a first concave arc surface at the connection with the connecting part, and the first concave arc surface can abut against the abutting part of the medical clamp located on one side of the receiving groove.

[0015] And / or, the positioning ear also has two second positioning sides facing away from each other along the axial direction of the ring body; the connection between the first positioning side and the second positioning side is provided with an arc-shaped surface, and the thickness between the two second positioning sides gradually decreases along the circumferential direction of the ring body and away from the connection, such that at least one of the second positioning sides forms a second guide surface.

[0016] In one embodiment of this application, the outer peripheral wall includes a tangent plane and an arcuate surface connected to the tangent plane. The clamping lug protrudes radially from the tangent plane along the ring body. The tangent plane can abut against the end face of the medical clamp. The ring body is provided with a mounting boss. The mounting boss protrudes radially from the ring body relative to the arcuate surface in a direction away from the ring body. The tangent plane is disposed on the mounting boss. And / or, the connection between the tangent plane and the arcuate surface is smoothly transitioned.

[0017] In one embodiment of this application, the ring body further includes a bottom wall and a top wall facing away from each other, the bottom wall being fitted to the stitching ring, and the outer peripheral wall being connected between the bottom wall and the top wall, the outer peripheral wall being a cylindrical surface;

[0018] And / or, the annulus has an opening and two connecting ends located on both sides of the opening, the ventricular connection assembly further includes a locking assembly, the locking assembly includes a connector and a locking member rotatably connected to the connector, the connector is connected to one of the connecting ends, the locking member is rotatably abutting against the other connecting end, and when the locking member rotates, it can bring the two connecting ends closer to each other to reduce the inner diameter of the annulus, the clamping lugs are spaced apart from the connecting ends and the locking assembly along the circumferential direction of the annulus.

[0019] Secondly, this application also provides a medical clamp capable of clamping any of the above-mentioned ventricular connection components, the medical clamp comprising:

[0020] A clamp handle, the clamp handle comprising a first clamping body and a second clamping body, the first clamping body and the second clamping body being rotatably connected such that the first clamping body can open or clamp relative to the second clamping body; and

[0021] The clamping part includes a first clamping end and a second clamping end; the first clamping end is connected to the first clamping body; the second clamping end is connected to the second clamping body, and the second clamping end can cooperate with the first clamping end to clamp the clamping lug of the ventricular connection assembly; at least one of the first clamping end and the second clamping end is provided with a receiving groove, the receiving groove can accommodate at least a portion 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-disengagement structure to prevent the clamping lug from disengaging from the receiving groove.

[0022] In one embodiment of this application, the receiving groove includes a plurality of groove walls connected end to end, the groove walls being able to surround an anti-detachment structure housed within the receiving groove and being interference-fitted with the anti-detachment structure; and / or, the first clamping end includes a first inner side facing the second clamping end; the first clamping end is provided with the receiving groove, and the receiving groove is a blind hole recessed into the interior of the first clamping end from the first inner side in a direction away from the second clamping end; and / or, both the first clamping end and the second clamping end are provided with the receiving groove, and the openings of the two receiving grooves are arranged opposite to each other.

[0023] In one embodiment of this application, the first clamping end includes a first inner side facing the second clamping end, a first outer side away from the second clamping end, and a first abutting surface. The first abutting surface and the first inner side 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, and there is a second distance between the first inner side and the first outer side. The first distance is less than the second distance.

[0024] In one embodiment of this application, the clamp handle further includes a first handle segment and a second handle segment, the second handle segment being connected between the first handle segment and the clamping part, and the clamping part and the first handle segment being disposed on opposite sides of the second handle segment, the included angle between the second handle segment and the clamping part being θ1, and 80°≤θ1≤100°, and the included angle between the second handle segment and the first handle segment being θ2, and 90°<θ2<180°.

[0025] Thirdly, this application provides a ventricular connection kit, including 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 lugs of the ventricular connection assembly can be received in the receiving groove of the medical clamp to engage and fix with the medical clamp.

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

[0027] This application discloses a ventricular connection assembly, a medical clamp, and a ventricular connection kit. The ventricular connection assembly features clamping lugs on its clamping ring that can be gripped by the medical clamp. At least a portion of the clamping lugs can be received within a receiving groove for engagement and fixation with the medical clamp. When the clamping ring is gripped by the medical clamp, an anti-disengagement structure prevents the clamping lugs from detaching from the receiving groove of the medical clamp, thus limiting separation between the medical clamp and the clamping lugs of the ventricular connection assembly, increasing the connection strength between the medical clamp and the ventricular connection assembly, and reducing the probability of the medical clamp detaching from the ventricular connection assembly. The clamping lugs are located on the outer peripheral wall, allowing the medical clamp to connect only to the clamping lugs on the outer peripheral wall of the clamping ring, without needing to connect to the entire outer peripheral wall of the clamping ring. This reduces the contact area between the medical clamp and the ventricular connection assembly, thereby reducing the size of the medical clamp to accommodate surgeries with small incisions. Attached Figure Description

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

[0029] Figure 2 for Figure 1 The diagram shows the structural schematic of the ventricular connection component of the ventricular connection kit.

[0030] Figure 3 for Figure 1 A magnified view of a portion of P1.

[0031] Figure 4 for Figure 2 A magnified view of a portion of P2.

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

[0033] Figure 6 for Figure 5 A magnified view of a portion of P3.

[0034] Figure 7 for Figure 2 The diagram shows the structure of the clamping ring of the ventricular connection assembly.

[0035] Figure 8 for Figure 7 A magnified view of a portion at point A.

[0036] Figure 9 for Figure 1 The diagram shows the structure of the medical clamp of the ventricular connection kit.

[0037] Figure 10 for Figure 9 A magnified view at point P4.

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

[0039] Figure 12 for Figure 9 The front view of the medical clamp shown.

[0040] Figure 13 for Figure 12 A sectional view along direction II.

[0041] Figure 14 for Figure 12 A magnified view of a section at point P5.

[0042] Figure 15 for Figure 1 The diagram shows a 3D view of the ventricular connection kit with the blood pump installed.

[0043] Figure 16 for Figure 15 The image shows a side view of the ventricular connection kit with the blood pump installed.

[0044] Figure 17 for Figure 16 A magnified view at point P6.

[0045] Figure 18 for Figure 17 The diagram shows the clamping part separated from the clamping lug. Detailed Implementation

[0046] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. Those skilled in the art can make similar modifications without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0047] During blood pump implantation surgery, medical clamps are typically used to support and position the ventricular connector assembly (VFA) to install the blood pump. However, current medical clamps hold the entire outer peripheral wall of the clamping ring of the VFA. When the blood pump is installed, it applies force to the VFA, making it easy for the outer peripheral wall of the clamping ring to separate from the clamping end of the medical clamp. In other words, the fit between the VFA and the medical clamp is not secure, causing the medical clamp to easily detach from the VFA.

[0048] Please see Figures 1 to 3 Therefore, this application provides a ventricular connection assembly 30, which can cooperate with a medical clamp 10. Specifically, the medical clamp 10 can clamp the ventricular connection assembly 30 to support and position it, facilitating the subsequent connection of the blood pump 5 (such as...) Figure 15 It is fixedly installed on the ventricular connection assembly 30.

[0049] The following describes the specific structure of a ventricular connection assembly 30 according to one embodiment. Before proceeding, 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, with the medical clamp 10 clamping the ventricular connection assembly 30. 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, and the clamping ring 400 is disposed on the suture ring 300. For example, the clamping ring 400 and the suture ring 300 are connected by sutures, 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 disposed on the outer peripheral wall 410 and can be clamped by the medical clamp 10; at least a portion of the clamping lug 420 can be received in the receiving groove 210 of the medical clamp 10 to engage and fix with the medical clamp 10, and the clamping lug 420 has an anti-disengagement structure, which prevents the clamping lug 420 from disengaging from the receiving groove 210 of the medical clamp 10 when the clamping ring 400 is clamped by the medical clamp 10.

[0050] The clamping lug 420 of the aforementioned ventricular connection assembly 30 can be clamped by the medical clamp 10. At least part of the clamping lug 420 can be received in the receiving groove 210 to engage and fix with the medical clamp 10. When the clamping ring 400 is clamped by the medical clamp 10, the anti-disengagement structure can prevent the clamping lug 420 from disengaging from the receiving groove 210 of the medical clamp 10. Thus, during the installation of the blood pump, even if force is applied to the ventricular connection assembly, the separation of the medical clamp 10 from the clamping lug 420 of the ventricular connection assembly 30 can be limited, increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30 and reducing the probability of the medical clamp 10 loosening from the ventricular connection assembly 30.

[0051] Clamping lugs 420 are disposed on the peripheral wall 410. For example, clamping lugs 420 extend radially away from the ring 401, allowing the medical clamp 10 to connect only with the clamping lugs 420 on the peripheral wall 410, without needing to connect with the entire peripheral wall 410. This reduces the contact area between the medical clamp 10 and the ventricular connection assembly 30, thereby reducing the size of the medical clamp 10 to accommodate small incision surgeries. Furthermore, through the cooperation of the clamping lugs 420 on the peripheral wall 410 and the medical clamp 10, during the clamping of the ventricular connection assembly 30, the medical clamp 10 only needs to open to a width greater than the clamping lugs 420, without needing to expand to a diameter greater than the clamping ring 400. This reduces the operating space required by the medical clamp 10, facilitating operation in narrow thoracic cavities and thus reducing the difficulty of blood pump implantation surgery.

[0052] Optionally, the suture ring 300 has a ring-shaped structure. Optionally, the suture ring 300 is sutured and fixed to the heart using suture thread. The suture ring 300 may include a sewing cloth and a soft material covered within the sewing cloth, such as silicone or rubber, so that the suture ring 300 can adapt to the curved shape of the outer wall of the heart and can be sutured to the outer wall of the heart.

[0053] Optionally, the ring 401 is generally a ring-shaped structure. The ring 401 is fixed to the suture ring 300 by sutures, or it can be connected to the suture ring 300 by adhesives or the like. The ring 401 is used to hold the blood pump 5. Specifically, the blood pump 5 is housed in the ring 401 through its inlet tube and is held by the ring 401.

[0054] In one embodiment, the outer peripheral wall 410 includes a tangent plane 411 and an arcuate surface 412 connected to the tangent plane 411. In this embodiment, the connection between the tangent plane 411 and the arcuate surface 412 is smoothly transitioned to avoid sharp edges that could scratch medical staff or patients, and to facilitate the suturing and fixing of the clamping ring 400 to the suture ring 300.

[0055] The ring 401 also includes a bottom wall (not shown) and a top wall 403 facing away from each other. The bottom wall fits against the suture ring 300, and the top wall 403 is the surface of the ring 401 facing away from the suture ring 300. An outer peripheral wall 410 connects the bottom wall and the top wall 403. In this embodiment, the outer peripheral wall 410 is a cylindrical surface. Compared to making the outer peripheral wall 410 a stepped surface, a cylindrical surface provides a larger area for the clamping lug 420 to connect, increasing the connection strength between the clamping lug 420 and the ring 401, thereby reducing the probability of the clamping lug 420 breaking off from the ring 401. The cylindrical surface of the outer peripheral wall 410 also means that no annular groove is provided on the outer periphery of the ring 401, which can increase the overall strength of the ring 401 and minimize the probability of deformation of the ring 401 under external force.

[0056] The ring body 401 has an opening 404 and two connecting ends located on both sides of the opening 404. The two connecting ends extend radially outward along the ring body 401. The two connecting ends can be selectively moved closer or further apart 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 the first connecting end 405a and the second connecting end 405b.

[0057] Please see Figure 3 The medical clamp 10 has an end face 260, which is positioned opposite the outer peripheral wall 410 when the clamp 10 holds the clamping lug 420. By clamping the clamping lug 420 with the medical clamp 10, the clamping ring 400 is held, thereby holding the ventricular connection assembly 30, which facilitates the implantation of the blood pump 5. The clamping lug 420 protrudes radially from the tangential plane 411 of the ring body 401, and the tangential plane 411 abuts against the end face 260 of the medical clamp 10. After the clamping lug 420 is received and fixed in the receiving groove 210, the cutting plane 411 can abut against the end face 260 of the medical clamp 10, so that the medical clamp 10 and the clamping ring 400 are in contact with two planes. Compared with the contact between a plane and an arc surface, the contact between 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, and increasing the connection strength between the medical clamp 10 and the clamping ring 400.

[0058] Please see Figures 4 to 6 The ring body 401 is provided with a mounting boss 413. The mounting boss 413 protrudes radially away from the ring body 401 relative to the arc surface 412 to increase the radial width of the ring body 401. The tangent plane 411 is provided on the mounting boss 413, that is, the tangent plane 411 is provided at a wider position of the ring body 401, so as to avoid the ring body 401 being too narrow in width, which would reduce the strength of the ring body 401 and increase the overall strength and stability of the ring body 401.

[0059] In one embodiment, the anti-disengagement structure includes a positioning ear 422, and the clamping lug 420 further includes a connecting portion 421 connected to the outer peripheral wall 410. The connecting portion 421 protrudes from the tangent plane 411, and the positioning ear 422 is connected to the end of the connecting portion 421 facing away from the outer peripheral wall 410. The positioning ear 422 extends from the side of the connecting portion 421 in a direction away from the connecting portion 421, such that the extension direction of the positioning ear 422 forms an angle with the extension direction of the connecting portion 421. The positioning ear 422 can be accommodated within the receiving groove 210, so that when the clamping lug 420 of the clamping ring 400 is clamped by the medical clamp 10, the positioning ear 422 of the anti-disengagement structure can be wrapped by the medical clamp 10, that is, at least a portion of the positioning ear 422 can be restricted within the receiving groove 210, preventing the positioning ear 422 from moving relative to the medical clamp 10 along the axial and radial directions of the ring body 401. The connecting part 421 can prevent the medical clamp 10 from moving circumferentially along the ring body 401. That is, the positioning ear 422 cannot move relative to the medical clamp 10 circumferentially along the ring body 401. Thus, the anti-disengagement structure can prevent the clamping lug 420 from disengaging from the receiving groove 210 of the medical clamp 10, thereby limiting the separation of the clamping lug 420 of the medical clamp 10 from the ventricular connection assembly 30, increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30, and reducing the probability of the medical clamp 10 disengaging from the ventricular connection assembly 30.

[0060] In this embodiment, the positioning ear 422 protrudes circumferentially from the connecting portion 421 along the ring body 401, that is, the extending direction of the positioning ear 422 is perpendicular to the axial direction of the ring body 401, which facilitates the medical clamp 10 in providing axial support force. In one embodiment, the positioning ear 422 may also protrude axially from the connecting portion 421 along the axial direction of the ring body 401. In this embodiment, the extending direction of the positioning ear 422 is approximately perpendicular to the extending direction of the connecting portion 421 to facilitate processing. In one embodiment, the extending direction of the positioning ear 422 and the extending direction of the connecting portion 421 may be an acute angle or an obtuse angle.

[0061] In this embodiment, the anti-disengagement structure only includes the positioning ear 422. In one embodiment, in addition to the clamping lug 420, the anti-disengagement structure also includes, for example, a stop plate disposed on the side of the connecting portion 421 opposite to the suture ring 300, which can prevent the medical clamp 10 from moving axially along the ring body 401. In other embodiments, the anti-disengagement structure may also include other structures that can prevent the clamping lug 420 from disengaging from the receiving groove 210 of the medical clamp 10.

[0062] Optionally, the clamping ring 400 and the clamping lug 420 are integrated, and the connecting part 421 and the positioning lug 422 are integrated, so as to improve the structural strength of the clamping lug 420, improve the reliability of the medical clamp 10 in 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 circumferentially along the ring body 401. The first surface 4211 and the second surface 4212 are the two circumferentially side surfaces of the connecting portion 421, and the first surface 4211 and the second surface 4212 are arranged back to back. Both the first surface 4211 and the second surface 4212 are 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 circumferentially along the ring body 401. The positioning ear 422 can be accommodated in the receiving groove 210, so that the medical clamp 10 can clamp the clamping ring 400.

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

[0065] The first rounded corner 423 can eliminate the deformation or breakage caused by the 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 that the clamping lug 420 will break 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 422 has two opposing first positioning sides 4221 along the radial direction of the ring 401. One first positioning side 4221 is connected to a first surface 4211, and the other first positioning side 4221 is connected to a second surface 4212. The width between the two first positioning sides 4221 gradually decreases along the circumference of the ring 401 and away from the connecting portion 421, such that at least one of the first positioning sides 4221 forms a first guide surface. The first guide surface is an inclined surface, meaning there is an angle between the first guide surface and the tangent plane 411, allowing the first guide surface to guide the positioning ear 422 into the receiving groove 210. In this embodiment, both first positioning sides 4221 form first guide surfaces. In other embodiments, one first positioning side 4221 forms a first guide surface, and the other can be a plane.

[0067] The positioning ear 422 also has two opposing second positioning sides 4222 along the axial direction of the ring 401. The connection between the first positioning side 4221 and the second positioning side 4222 has an arc-shaped surface to prevent sharp edges or corners from forming at the connection, which could scratch medical personnel or patients. The thickness between the two second positioning sides 4222 gradually decreases along the circumference of the ring 401 and away from the connecting portion 421, such that at least one of the second positioning sides 4222 forms a second guide surface. This second guide surface is inclined, meaning there is a certain angle between the second guide surface and the upper surface of the suture ring 300 (the surface used to install the clamping ring 400), allowing the second guide surface to act as a guide, further facilitating the guidance of the positioning ear 422 into the receiving groove 210. In this embodiment, both second positioning sides 4222 form second guide surfaces. In other embodiments, one of the second positioning sides 4222 forms a second guide surface, and the other can be a plane, i.e., parallel to the upper surface of the suture ring 300.

[0068] The positioning ear 422 also has a first positioning surface 4225 and a second positioning surface 4226. The first positioning surface 4225 is the surface of the positioning ear 422 facing away from the suture ring 300, and is connected to one of the second positioning side surfaces 4222. The second positioning surface 4226 is the surface of the positioning ear 422 near the suture 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 conform to the groove wall of the receiving groove 210.

[0069] In one embodiment, there are two positioning ears 422. For ease of description, the two positioning ears 422 are referred to as the first ear 4223 and the second ear 4224, respectively. Both the first ear 4223 and the second ear 4224 are opposite to the tangent 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, there may be one positioning ear 422, and correspondingly, there may also be one receiving groove 210. 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 received in the receiving groove 210. The side of the clamping lug 420 without the positioning ear 422 can be set as a plane. Correspondingly, 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 engagement of the positioning ear 422 and the receiving groove 210, and the other side is the engagement of two planes, which can also prevent the clamping lug 420 from disengaging from the receiving groove 210 of the medical clamp 10.

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

[0072] Please see Figure 2 The ventricular connection assembly 30 also includes a locking assembly 600, which has a locked state and an unlocked state. When the locking assembly 600 is in the locked state, it can drive the annulus 401 to retract radially, so that the annulus 401 clamps the blood pump 5 inserted therein. Figure 15 The inlet pipe is opened; when the locking assembly 600 is in the loosened state, the inward state of the ring 401 can be released, and the ring 401 can expand radially under its own elasticity to loosen the inlet pipe.

[0073] Please see Figure 2 and Figure 5The locking assembly 600 includes a connector 610 and a locking member 620 rotatably connected to the connector 610. The connector 610 is connected to the second connecting end 405b. The locking member 620 includes a rotating part 621, which is rotatably connected to the end of the connector 610 away from the second connecting end 405b, and the rotating part 621 is rotatably abutting against the first connecting end 405a. When the locking member 620 rotates, it can bring the first connecting end 405a and the second connecting end 405b closer together, thereby reducing the inner diameter of the ring body 401 and enabling the ring body 401 to clamp the inlet pipe.

[0074] In some embodiments, the rotating part 621 is provided with a cam structure, which rotatably abuts against the side of the first connecting end 405a opposite to the second connecting end 405b. When the rotating part 621 rotates, the cam structure pushes the first connecting end 405a toward the second connecting end 405b, thereby reducing the inner diameter of the ring body 401. In other embodiments, the rotating part 621 is cam-shaped, rotatably abutting against the side of the first connecting end 405a opposite to the second connecting end 405b. When the rotating part 621 rotates, it pushes the first connecting end 405a toward the second connecting end 405b, thereby reducing the inner diameter of the ring body 401.

[0075] The locking member 620 also includes an engaging protrusion 622, which is located at one end of the locking member 620 away from the rotating part 621. A mating part 4052 is provided on the side of the second connecting end 405b away from the connecting member 610, and the engaging protrusion 622 can engage with the mating part 4052. The engaging protrusion 622 engages with the mating part 4052 to prevent the distance between the first connecting end 405a and the second connecting end 405b from increasing, thereby maintaining a constant distance between the first connecting end 405a and the second connecting end 405b, so that the ring body 401 remains in an inwardly retracted state, thus clamping and fixing the inlet pipe.

[0076] In one implementation, an independent rotating shaft 630 can be provided, which can be movably inserted through the locking member 620 and the connecting member 610; or the rotating shaft 630 can be fixedly connected to the locking member 620, and the connecting member 610 can be rotatably connected to the rotating shaft 630; or the rotating shaft 630 can be rotatably connected to the locking member 620, while being 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 spaced apart 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 beneficial to the cooperation between the clamping lug 420 and the medical clamp 10.

[0077] Traditional medical clamps hold the clamps on opposite sides of the outer peripheral wall of the clamping ring 400 via their clamping parts. This requires the use of large-sized medical clamps, which in turn necessitates a large incision in the chest cavity. In addition, when the medical clamps are used to hold the ventricular connection assembly, they expand to a diameter greater than that of the clamping ring 400, which requires a large operating space and is difficult to operate in the narrow chest cavity.

[0078] Please see Figure 1 , Figure 9 and Figure 10 Therefore, this application also provides a medical clamp 10 capable of clamping the ventricular connection assembly 30 of any of the above embodiments. The medical clamp 10 includes a handle 100 and a clamping portion 200. The handle 100 includes a first clamp body 110 and a second clamp body 120, which are rotatably connected so that the first clamp body 110 can open or clamp 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. 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-disengagement structure to prevent the clamping lug 420 from disengaging from the receiving groove 210.

[0079] The handle 100 is the main structure of the medical clamp 10, and is used by the operator to grip it. The gripping part 200 is located at the bottom of the handle 100; for ease of description, it is referred to as... Figure 9 The directions shown are the reference. The area above the medical clamp 10 is the top, and the area below it is the bottom. The directions shown for the top and bottom are the first direction Z. The top and bottom will not be discussed further in the following text.

[0080] The clamping part 200 is the main component connecting the medical clamp 10 and the ventricular connection assembly 30. Specifically, when the first clamp body 110 clamps relative to the second clamp body 120, the clamping part 200 can fix the clamping lug 420 within the receiving groove 210, so that the end face 260 faces the outer peripheral wall 410. That is, when the medical clamp 10 clamps the ventricular connection assembly 30 through the clamping part 200, the clamping lug 420 of the clamping ring 400 can be fixedly received within the receiving groove 210 of the clamping part 200, thereby improving the reliability of the connection between the medical clamp 10 and the ventricular connection assembly 30.

[0081] When the first clamp 110 opens relative to the second clamp 120, the clamping part 200 opens, and the clamping lug 420 can disengage from the receiving groove 210. When the first clamp 110 clamps relative to the second clamp 120, the clamping part 200 closes, and the clamping lug 420 can be received and fixed in the receiving groove 210.

[0082] The medical clamp 10 of the above embodiment, by providing a receiving groove 210 in the clamping part 200, when the first clamping body 110 of the clamping handle 100 clamps relative to the second clamping body 120, the clamping part 200 can clamp the clamping lug 420 of the outer peripheral wall 410 of the ventricular connection assembly 30, so as to receive and fix the clamping lug 420 in the receiving groove 210. Compared to the traditional method of clamping the sidewall of the ventricular connection assembly with a clamping part, this application, by fixing the clamping lug 420 within the receiving groove 210 of the clamping part 200, can minimize the separation of the clamping lug 420 from the clamping part 200, thereby maximizing the restriction of separation between the medical clamp 10 and the clamping lug 420 of the ventricular connection assembly 30. This increases the connection strength between the medical clamp 10 and the ventricular connection assembly 30, ensuring a reliable fit between the medical clamp 10 and the ventricular connection assembly 30, and reducing the probability of the medical clamp 10 detaching from the ventricular connection assembly 30. Furthermore, the clamping part 200 clamps the clamping lug 420 on the outer peripheral wall 410 of the clamping ring 400, rather than fitting with the entire outer peripheral wall 410. Therefore, a large-sized medical clamp is not required, which reduces the size of the medical clamp 10, making it suitable for surgeries with small incisions and expanding the applicability of the medical clamp 10. During the process of clamping the ventricular connection assembly 30 with the medical clamp 10, 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 less operating space, which is beneficial for operation in narrow chest cavities, and thus helps to reduce the difficulty of blood pump implantation surgery.

[0083] Please see Figure 3 and Figure 10 In one embodiment, the receiving groove 210 includes a plurality of groove walls connected end to end, the groove walls being able to surround the anti-detachment structure housed within the receiving groove 210 and to be interference-fitted with the anti-detachment structure.

[0084] In other words, 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. Thus, the medical clamp 10 can reliably clamp the clamping lug 420, preventing the clamping lug 420 from wobbling in the receiving groove 210, increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30, improving the reliability of the medical clamp 10 clamping the ventricular connection assembly 30, and reducing the probability of the medical clamp 10 detaching from the ventricular connection assembly 30. In other embodiments, the clamping lug 420 can also be fixedly received in the receiving groove 210 by means of adhesive bonding or snap-fitting.

[0085] Please refer to the following: Figure 11 In this embodiment, the multiple groove walls include a first sidewall 2101, a second sidewall 2102, a third sidewall 2103, and a fourth sidewall 2104. The first sidewall 2101, second sidewall 2102, third sidewall 2103, and fourth sidewall 2104 are connected end-to-end; that is, the first sidewall 2101 is opposite to the third sidewall 2103, the second sidewall 2102 is opposite to the fourth sidewall 2104, and the second sidewall 2102 is connected between the first sidewall 2101 and the third sidewall 2103, making the receiving groove 210 approximately rectangular. When the medical clamp 10 clamps the positioning ear 422, the first sidewall 2101 can be opposite to one of the first positioning sidewalls 4221, and the third sidewall 2103 can be opposite to the other first positioning sidewall 4221. The first sidewall 2101 and the third sidewall 2103 can restrict the radial movement of the positioning ear 422 along the ring body 401. The second sidewall 2102 is opposite to the first positioning surface 4225, and the fourth sidewall 2104 is opposite to the second positioning surface 4226. The second sidewall 2102 and the fourth sidewall 2104 can restrict the axial movement of the positioning ear 422 along the ring body 401. The connecting part 421 can stop the medical clamp 10 from moving circumferentially along the ring body 401. That is, the connecting part 421 of the positioning ear 422 cannot move relative to the medical clamp 10 along the circumferential direction of the ring body 401. Thus, the anti-disengagement structure can prevent the clamping lug 420 from disengaging from the receiving groove 210 of the medical clamp 10, thereby restricting the separation of the clamping lug 420 of the medical clamp 10 from the ventricular connection assembly 30.

[0086] Please see Figures 10 to 13In one embodiment, the end face 260 includes a first end face 224 disposed on the first clamping end 220 and a second end face 234 disposed on the second clamping end 230. Both the first end face 224 and the second end face 234 can abut against the outer peripheral wall 410 of the clamping ring 400 of the ventricular connection assembly 30. In this embodiment, the first end face 224 and the second end face 234 are coplanar, which can increase the contact area between the end face 260 and the outer peripheral wall 410. For example, after the clamping part 200 clamps the clamping lug 420, the clamping part 200 abuts against the tangential plane 411 of the ventricular connection assembly 30 through the first end face 224 and the second end face 234, making the connection between the medical clamp 10 and the clamping ring 400 more stable and increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30.

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

[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 anti-slip portions 261. Exemplarily, the anti-slip portion 261 is an anti-slip groove, which is recessed in the end face 260. The end face 260 abuts against the outer peripheral wall 410 through the recessed anti-slip groove, increasing the friction between the medical clamp 10 and the clamping ring 400. Of course, in other embodiments of this application, the anti-slip portion 261 may also be an anti-slip protrusion, 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 surface 221 facing the second clamping end 230 and a first outer surface 222 away from the second clamping end 230. The first clamping end 220 also includes a first abutting surface 223, which 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 surface 221 are located on the same side of the first clamping end 220, and a first end face 224 is connected between the first abutting surface 223 and the first outer surface 222.

[0090] Please see Figure 13In one embodiment, the first inner surface 221, the first outer surface 222, and the first abutting surface 223 are parallel to each other. A first distance h1 exists between the first abutting surface 223 and the first outer surface 222, and a second distance h2 exists between the first inner surface 221 and the first outer surface 222, wherein the first distance h1 is less than the second distance h2. That is, the distance between the first inner surface 221 and the second clamping end 230 is less than the distance between the first abutting surface 223 and the second clamping end 230, which increases the depth of a portion of the receiving groove 210 to better accommodate the clamping lug 420, reducing the probability of the medical clamp 10 loosening from the clamping lug 420, and facilitating the clamping part 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 into the interior of the first clamping end 220 from the first inner side surface 221 in a direction away from the second clamping end 230, 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 may also be a through hole recessed into the interior of the first clamping end 220 from the first inner side surface 221 in a direction away from the second clamping end 230.

[0092] Please see Figure 9 and Figure 10 In one embodiment, both the first clamping end 220 and the second clamping end 230 are provided with receiving grooves 210, and the openings of the two receiving grooves 210 are arranged opposite to each other, so that when the first clamping body 110 and the second clamping body 120 are clamped, the clamping lug 420 can be received and fixed in the receiving groove 210 of the clamping part 200. For ease of description, the two receiving grooves 210 are respectively referred to as the first groove 211 and the second groove 212, wherein the first groove 211 is provided in the first clamping end 220, the second groove 212 is provided in the second clamping end 230, and the opening of the first groove 211 and the opening of the second groove 212 are arranged opposite to each other.

[0093] In some embodiments, one of the first clamping end 220 and the second clamping end 230 is provided with a receiving groove 210, that is, there is one receiving groove 210. Correspondingly, there is also one positioning ear 422. 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 disengaging from the receiving groove 210 of the medical clamp 10.

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

[0095] When the first clamping body 110 and the second clamping 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, thereby realizing that the clamping part 200 clamps the clamping lug 420.

[0096] Please continue reading. Figure 9 Optionally, the clamp handle 100 further includes a pin 150. The first clamp body 110 and the second clamp body 120 are arranged crosswise and hinged by the pin 150. That is, both the first clamp body 110 and the second clamp body 120 are rotatably connected to the pin 150, and both the first clamp body 110 and the second clamp body 120 can rotate around the pin 150. During the rotation of the first clamp body 110 and the second clamp body 120 around the pin 150, the first clamping end 220 and the second clamping end 230 can move closer to each other or further away from each other, thereby clamping or opening the first clamp body 110 and the second clamp 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 plane passing through the rotation axis L is designated as the reference plane S. The first clamping end 220 and the second clamping end 230 are located on opposite sides of the reference plane S, and are symmetrically arranged about the reference plane S. That is, the first clamping end 220 and the second clamping end 230 have identical structures, allowing the force applied by the operator to be evenly distributed between the first clamping end 220 and the second clamping end 230. This further facilitates the reliable clamping of the clamping lug 420 by the medical clamp 10, thereby further improving the reliability of the medical clamp 10 in clamping the ventricular connection assembly 30. The identical structure of the first clamping end 220 and the second clamping end 230 also allows them to be manufactured through the same process, reducing the manufacturing difficulty of the medical clamp 10. Of course, in other embodiments of this application, the structures of the first clamping end 220 and the second clamping end 230 may not be the same.

[0098] Optionally, the first clamp body 110 and the first clamping end 220 are integral structures, and the second clamp body 120 and the second clamping end 230 are integral structures. This can improve the structural strength of the first clamp body 110 and the first clamping end 220, and improve the structural strength of the second clamp body 120 and the second clamping end 230, thereby improving the stability of the medical clamp 10 during use.

[0099] Please see Figures 10 to 13 The second clamping end 230 also includes a second inner surface 231 and a second outer surface 232. The second inner surface 231 and the second outer surface 232 are disposed opposite to each other on the second clamping end 230, and the first inner surface 221 and the second inner surface 231 are two surfaces opposite to 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 opposite to each other, and the second abutting surface 233 is disposed near the second end 250. The second abutting surface 233 is also parallel to the second outer 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. 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. In addition, the inner walls of the first groove 211 and the second groove 212 can also abut against the clamping lug 420 to fix the clamping lug 420 in the receiving groove 210.

[0101] Please see Figure 9 , Figure 12 and Figure 13 In one embodiment, the forceps handle 100 further includes a first handle segment 130 and a second handle segment 140. The second handle segment 140 is connected between the first handle segment 130 and the clamping portion 200, and the clamping portion 200 and the first handle segment 130 are disposed on opposite sides of the second handle segment 140. The top of the second handle segment 140 is connected to the first handle segment 130, and the bottom of the second handle segment 140 is connected to the clamping portion 200. The first handle segment 130 and the second handle segment 140 facilitate the operation of the medical forceps 10 by the operator.

[0102] It is worth noting that the clamp handle 100 includes a first clamp body 110 and a second clamp body 120, and the clamp handle 100 includes a first handle segment 130 and a second handle segment 140, which describe the structure of the clamp handle 100 from different dimensions. The clamp handle 100 including the first handle segment 130 and the second handle segment 140 describes the structure of the medical clamp 10 from the first direction Z, while the clamp handle 100 including the first clamp body 110 and the second clamp body 120 describes the structure of the medical clamp 10 from the second direction Y. Wherein, the first direction Z is as follows... Figure 9 and Figure 12 As shown, the first direction Z is the direction between the top and bottom, and the second direction Y is as follows: Figure 9 As shown, the second direction Y is Figure 9 The left and right directions shown are... Figure 12 The front-back direction. Taking the clamping part 200 as a reference, the first direction Z is the thickness direction of the clamping part 200, and the second direction Y is the width direction of the clamping part 200. That is, both the first clamping body 110 and the second clamping body 120 include a first handle segment 130 and a second handle segment 140. The first clamping body 110 and the second clamping body 120 are rotatably connected at their respective second handle segments 140. The first clamping body 110 and the second clamping body 120 achieve clamping or opening of the first clamping end 220 and the second clamping end 230 by moving closer or further away from each other through the first handle segments 130.

[0103] In one embodiment, the clamping portion 200 and the first handle segment 130 extend in opposite directions. Figure 12 In this configuration, the clamping part 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 part 200 and the first handle segment 130 are located on either side of the second handle segment 140 in the third direction X. This arrangement allows the operator's position on the medical clamp 10 and the surgical position of the medical clamp 10 on the patient to be located on either side of the second handle segment 140, facilitating the operator's operation of the medical clamp 10 and preventing accidental contact with the patient when the operator is clamping the first handle segment 130.

[0104] Please see Figure 9 and Figure 12 In one embodiment, the included angle between the second handle segment 140 and the clamping part 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 without changing the overall length of the handle 100, thus providing a larger operating space for the operator and making it easier for the operator to operate the medical clamp 10.

[0105] For example, the second handle segment 140 is perpendicular to the clamping portion 200. This configuration provides the operator with more operating space, making it easier for the operator to operate the medical clamp 10.

[0106] In one embodiment, the included angle between the second handle segment 140 and the first handle segment 130 is θ2, and 90° < θ2 < 180°. That is, the included 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 towards the operator, further increasing the operable space and facilitating the operator's operation of the medical clamp 10.

[0107] Optionally, the first handle section 130, the second handle section 140, and the clamping part 200 are integrated into one structure. This improves the structural strength of the medical clamp 10 and facilitates its forming and processing, reducing the difficulty of manufacturing.

[0108] Please see Figure 9 , Figure 12 and Figure 13 In one embodiment, the clamping portion 200 further has a first end portion 240 and a second end portion 250, the second end portion 250 being connected to the clamp handle 100. The first end portion 240 is a free end, a first end face 224 is disposed on the first end portion 240, and a second end face 234 is disposed on the second end portion 250. That is, the two opposite ends of the clamping portion 200 are the first end portion 240 and the second end portion 250, respectively. The clamping portion 200 is connected to the clamp handle 100 through the second end portion 250, and the first end portion 240 of the clamping portion 200 extends in a direction away from the clamp handle 100. The direction of the line connecting the first end portion 240 and the second end portion 250 is a third direction X, which is the length direction of the clamping portion 200, and the extension directions of the first end portion 240 and the second end portion 250 are also the extension directions 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 below.

[0109] Please see Figure 10 and Figure 13 In one embodiment, the first clamping end 220 further includes a second rounded corner 225, which connects the first abutting surface 223 and the first end face 224. That is, the connection between the first abutting surface 223 and the first end face 224 is provided with a second rounded corner 225. The second clamping end 230 further includes a third rounded corner 235, which connects the second abutting surface 233 and the second end face 234. That is, the connection between the second abutting surface 233 and the second end face 234 is provided with a third rounded corner 235.

[0110] In other words, the first abutment surface 223 and the first end face 224 are smoothly transitioned by the second rounded corner 225, and the second abutment surface 233 and the second end face 234 are smoothly transitioned by the third rounded corner 235. When the clamping lug 420 is fixedly received in the receiving groove 210, the first positioning side 4221 of the clamping lug 420 abuts against the second rounded corner 225, and the second positioning side 4222 abuts against the third rounded corner 235. Through the guidance of the first positioning side 4221 by the second rounded corner 225 and the guidance of the second guiding surface by the third rounded corner 235, it is convenient for the positioning lug 422 to move into the first groove 211 and the second groove 212, thereby facilitating the cooperation between the receiving groove 210 and the clamping lug 420.

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

[0112] Furthermore, the dimension of the first groove segment 213 along the second direction Y is smaller than the dimension of the second groove segment 214 along the second direction Y, that is, the width of the first groove segment 213 is smaller than the width of the second groove segment 214. In other words, from the first end 240 to the second end 250, the receiving groove 210 has a structure that is narrower at first and then wider. In this way, after the clamping lug 420 is fixedly received in the receiving groove 210, the narrower part of the receiving groove 210 can block the clamping lug 420, making it less likely for the clamping lug 420 to slip out of the receiving groove 210, thus reducing the probability of the medical clamp 10 separating from the ventricular connection assembly 30.

[0113] Please continue reading. Figure 13In one embodiment, the first clamping end 220 further includes a first abutting portion 226, and the second clamping end 230 further includes a second abutting portion 236. The first abutting portion 226 is disposed 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 disposed at the connection between the second abutting surface 233 and the second end surface 234 and is close to the second groove 212. Both the first abutting portion 226 and the second abutting portion 236 abut against the clamping lug 420. Specifically, after the clamping lug 420 is fixedly received in the receiving groove 210, the first abutting part 226 can abut against the first concave arc surface 425 of the clamping lug 420, making it difficult for the first abutting part 226 to detach from the groove formed by the first concave arc surface 425. The second abutting part 236 can abut against the second concave arc surface 426 of the clamping lug 420, making it difficult for the second abutting part 236 to detach from the groove formed by the second concave arc surface 426, thereby increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30.

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

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

[0116] When the first rack 112 and the second rack 122 separate, at least one of the first clamping body 110 and the second clamping body 120 can rotate relative to the other to clamp or open the medical clamp 10. After the first clamping body 110 and the second clamping body 120 complete the clamping or opening action, the first rack 112 and the second rack 122 engage, fixing the relative position of the first clamping body 110 and the second clamping body 120. At this time, the first clamping body 110 and the second clamping body 120 can maintain the current clamping or opening state to facilitate further operation by the operator.

[0117] Optionally, the first rack 112 is located at the end of the first clamping body 110 away from the first clamping end 220, and the second rack 122 is located at the end of the second clamping body 120 away from the second clamping end 230. That is, the first rack 112 is located at the end of the first clamping body 110 near the first clamping hole 111, and the second rack 122 is located at the end of the second clamping body 120 near the second clamping hole 121.

[0118] The medical clamp 10 of this application, by providing a receiving groove 210 in the clamping part 200 to receive the clamping lug 420 of the outer peripheral wall 410 of the fixed ventricular connection assembly 30, can clamp the clamping lug 420 tightly, restricting the separation of the clamping lug 420 from the clamping part 200, thereby maximizing the restriction of the separation between the medical clamp 10 and the clamping lug 420 of the ventricular connection assembly 30, increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30, realizing reliable cooperation between the medical clamp 10 and the ventricular connection assembly 30, and reducing the probability of the medical clamp 10 loosening from the ventricular connection assembly 30.

[0119] Please continue reading. Figure 1 and Figure 9 This application also provides a ventricular connection kit 1, including a ventricular connection component 30 as described in the above embodiments and a medical clamp 10 as described in any of the above embodiments. At least a portion 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 engage and fix it with the medical clamp 10.

[0120] The ventricular connection assembly 30 includes a suture ring 300 and a clamping ring 400, with the clamping ring 400 disposed on the suture ring 300. The outer peripheral wall 410 has a clamping lug 420, and the clamping portion 200 can clamp the clamping lug 420. After the medical clamp 10 clamps the clamping lug 420, the clamping portion 200 receives and fixes the clamping lug 420 through the receiving groove 210. At this time, the medical clamp 10 can clamp the clamping lug 420 from the side of the clamping ring 400, achieving a clamping connection with the clamping ring 400 and improving the reliability of the connection between the medical clamp 10 and the ventricular connection assembly 30.

[0121] The ventricular connection kit 1 of this application uses a receiving groove 210 of a medical clamp 10 to receive and fix the clamping lug 420 of the outer peripheral wall 410 of the ventricular connection assembly 30, thereby enabling the medical clamp 10 to clamp the clamping ring 400, increasing the connection strength between the medical clamp 10 and the ventricular connection assembly 30, and reducing the probability of the medical clamp 10 detaching from the ventricular connection assembly 30. Moreover, after the medical clamp 10 and the clamping lug 420 are clamped together, the size of the clamping part 200 can be reduced, making the medical clamp 10 suitable for small incision surgeries and expanding the applicability of the medical clamp 10.

[0122] When the ventricular connection assembly 30 is sutured to the ventricular wall, the medical clamp 10 clamps the clamping lug 420 of the outer peripheral wall 410. The medical clamp 10 supports and positions the ventricular connection assembly 30, facilitating its suturing to the heart and reducing the installation difficulty. The ventricular connection kit 1 of this application, using the medical clamp 10 of the above embodiment, can reliably clamp the ventricular connection assembly 30 after installation, reducing the likelihood of the medical clamp 10 detaching from the ventricular connection assembly 30.

[0123] Please see Figure 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 secure it to the heart. The inlet tube 501 of the blood pump 5 can pass through the clamping ring 400, which clamps the inlet tube 501, thereby securing the blood pump 5 to the ventricular connection assembly 30. Medical clamps 10 clamp the clamping lugs 420 of the clamping ring 400, facilitating the securing of the blood pump 5 to the heart.

[0124] In one embodiment, a first predetermined gap 310 exists between the upper surface of the suture 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 suture ring 300 fits against the ventricular wall such that the suture ring 300 is approximately arc-shaped, thus the first predetermined gap 310 between the upper surface of the suture ring 300 and the lower surface 427 of the clamping lug 420 is approximately narrower on the left and wider on the right (e.g., ...). Figure 17 (As shown).

[0125] Please refer to the following: Figure 18 In one embodiment, a second predetermined gap 503 exists 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 inverted and fastened to the clamping ring 400 of the ventricular connection assembly 30, such 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 approximately narrower on the left and wider on the right (e.g., ...). Figure 18 (As shown).

[0126] In one embodiment, the thickness of the clamping portion 200 gradually decreases. That is, the dimension of the clamping portion 200 gradually decreases along the third direction X. In this way, after the clamping portion 200 clamps the clamping lug 420, the clamping portion 200 can fit into the first predetermined gap 310 and the second predetermined gap 503 without interfering with the blood pump 5, thereby allowing the blood pump 5 to be accurately installed into 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. That is, the thickness of the entire clamping portion 200 gradually decreases in the direction away from the shank 100. Of course, in other embodiments of this application, the thickness of the clamping portion 200 may also gradually decrease near the first end 240, that is, the thickness dimension of a portion of the clamping portion 200 gradually decreases.

[0128] Please see Figure 10 and Figure 14 In one embodiment, the clamping portion 200 further includes a top surface 227 and a bottom surface 228 disposed opposite to each other, and a 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 along the 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 part 200 will be embedded in the second predetermined gap 503, and the clamping part 200 will not interfere with the blood pump 5, thereby improving the reliability of the blood pump 5 being installed in the ventricular connection assembly 30.

[0130] In this embodiment, the bottom surface 228 is also an inclined surface, and the bottom surface 228 gradually slopes 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. This allows the first end 240 of the clamping part 200 to extend into the first predetermined gap 310, avoiding obstruction by the suture ring 300, thereby enabling the medical clamp 10 to engage with the clamping lug 420. In other embodiments, the top surface 227 is an inclined surface and the bottom surface 228 is a flat surface, or the top surface 227 is a flat surface and the bottom surface 228 is an inclined surface, which also enables the medical clamp 10 to engage with the clamping lug 420.

[0131] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. Those skilled in the art can make various modifications and improvements, all of which fall within the protection scope of this application.

Claims

1. A ventricular connection assembly, characterized in that, The ventricular connection assembly includes: Suture ring; and A clamping ring is disposed on the suture ring. The clamping ring includes a ring body and a clamping lug. The ring body has an outer peripheral wall. The clamping lug is disposed on the outer peripheral wall and can be clamped by a medical clamp. At least a portion of the clamping lug can be received in the receiving groove of the medical clamp to engage and fix it with the medical clamp. The clamping lug has an anti-disengagement structure. When the clamping ring is clamped by the medical clamp, the anti-disengagement structure can prevent the clamping lug from disengaging from the receiving groove of the medical clamp. 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 one end of the connecting portion 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 receiving groove, and when the clamping ring is clamped by the medical clamp, at least a portion of the positioning ear can be restricted in the receiving groove.

2. The ventricular connection assembly according to claim 1, characterized in that, The connecting portion is connected to the outer peripheral wall, and the connecting portion has a first surface and a second surface spaced circumferentially along the ring body. At least one of the first surface and the second surface is provided with a positioning ear that protrudes circumferentially along the ring body.

3. The ventricular connection assembly according to claim 2, characterized in that, The clamping ring also has at least one of the following features: Both the first surface and the second surface are connected to the outer peripheral wall, and at least one of the first surface and the second surface is provided with a first rounded corner at the connection with the outer peripheral wall; The number of positioning ears is two, and the two positioning ears are disposed on opposite sides of the connecting part and are symmetrical. The positioning ear has two first positioning sides facing away from each other along the radial direction of the ring body. The width between the two first positioning sides gradually decreases along the circumference of the ring body and away from the connecting portion, such that at least one of the first positioning sides forms a first guide surface.

4. The ventricular connection assembly according to claim 2, characterized in that, The positioning ear has two first positioning sides facing away from each other along the radial direction of the ring body, wherein: The first positioning side facing the outer peripheral wall of the positioning ear has a first concave arc surface at the connection with the connecting part, and the first concave arc surface can abut against the abutting part of the medical clamp located on one side of the receiving groove. And / or, the positioning ear also has two second positioning sides facing away from each other along the axial direction of the ring body, the connection between the first positioning side and the second positioning side is provided with an arc-shaped surface, and the thickness between the two second positioning sides gradually decreases along the circumferential direction of the ring body and away from the connection, such that at least one of the second positioning sides forms a second guide surface.

5. The ventricular connection assembly according to claim 1, characterized in that, The outer peripheral wall includes a tangent plane and an arc surface connected to the tangent plane. The clamping lug protrudes radially from the tangent plane of the ring body. The tangent plane can abut against the end face of the medical clamp. The ring body is provided with a mounting boss. The mounting boss protrudes radially from the ring body relative to the arc surface in a direction away from the ring body. The tangent plane is disposed on the mounting boss. And / or, the connection between the tangent plane and the arc surface is smoothly transitioned.

6. The ventricular connection assembly according to claim 1, characterized in that, The ring body also includes a bottom wall and a top wall facing away from each other. The bottom wall fits into the stitching ring, and the outer peripheral wall is connected between the bottom wall and the top wall. The outer peripheral wall is a cylindrical surface. And / or, the annulus has an opening and two connecting ends located on both sides of the opening, the ventricular connection assembly further includes a locking assembly, the locking assembly includes a connector and a locking member rotatably connected to the connector, the connector is connected to one of the connecting ends, the locking member is rotatably abutting against the other connecting end, and when the locking member rotates, it can bring the two connecting ends closer to each other to reduce the inner diameter of the annulus, the clamping lugs are spaced apart from the connecting ends and the locking assembly along the circumferential direction of the annulus.

7. A medical clamp capable of clamping the ventricular connection assembly as described in any one of claims 1-6, characterized in that, The medical clamp includes: A clamp handle, the clamp handle comprising a first clamping body and a second clamping body, the first clamping body and the second clamping body being rotatably connected such that the first clamping body can open or clamp relative to the second clamping body; and The clamping part includes a first clamping end and a second clamping end; the first clamping end is connected to the first clamping body; the second clamping end is connected to the second clamping body, and the second clamping end can cooperate with the first clamping end to clamp the clamping lug of the ventricular connection assembly; at least one of the first clamping end and the second clamping end is provided with a receiving groove, the receiving groove can accommodate at least a portion 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-disengagement structure to prevent the clamping lug from disengaging from the receiving groove.

8. The medical clamp according to claim 7, characterized in that, The receiving groove includes multiple groove walls connected end to end, the groove walls being able to surround the anti-detachment structure housed within the receiving groove and having an interference fit with the anti-detachment structure; and / or, the first clamping end includes a first inner side facing the second clamping end; the first clamping end is provided with the receiving groove, and the receiving groove is a blind hole recessed into the interior of the first clamping end from the first inner side in a direction away from the second clamping end; and / or, both the first clamping end and the second clamping end are provided with the receiving groove, and the openings of the two receiving grooves are arranged opposite to each other.

9. The medical clamp according to claim 7, characterized in that, The first clamping end includes a first inner side facing the second clamping end, a first outer side away from the second clamping end, and a first abutting surface. The first abutting surface and the first inner side 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, and there is a second distance between the first inner side and the first outer side. The first distance is less than the second distance.

10. The medical clamp according to claim 7, characterized in that, The pliers handle further includes a first handle segment and a second handle segment. The second handle segment is connected between the first handle segment and the clamping part, and the clamping part and the first handle segment are disposed on opposite sides of the second handle segment. The included angle between the second handle segment and the clamping part is θ1, and 80°≤θ1≤100°. The included angle between the second handle segment and the first handle segment is θ2, and 90°<θ2<180°.

11. A ventricular connection kit, characterized in that, The device includes a ventricular connection assembly as described in any one of claims 1 to 6 and a medical clamp as described in any one of claims 7 to 10, wherein at least a portion of the clamping lugs of the ventricular connection assembly can be received within the receiving groove of the medical clamp to engage and secure with the medical clamp.

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