Clamp holder

Abstract

The invention relates to a gripper. The first clamping body comprises a first main body, a first clamping part and a first handle part, and the first clamping part and the first handle part are arranged at the two ends of the first main body; the second clamping body comprises a second main body, a second clamping part and a second handle part, the second clamping part and the second handle part are arranged at the two ends of the second main body, and the first clamping body and the second clamping body are rotationally connected around an axis; the first clamping part and the second clamping part jointly define a clamping end of the clamp holder, and the first handle and the second handle jointly define a holding end of the clamp holder; the first handle part is obliquely arranged relative to the first main body, the second handle part is obliquely arranged relative to the second main body, and the inclination directions of the first handle part and the second handle part are the same.

Description

Technical Field

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

[0002] An implantable left ventricular assist device, or blood pump, includes an inlet tube and an outlet tube. When implanted in the human body, the outlet tube is connected to the aorta through an artificial blood vessel, and the inlet tube is inserted into the left ventricle through an opening on the apex of the heart. In order to fix the inlet tube relative to the heart, the blood pump is usually connected to the heart through a ventricular connector. At present, the implantation process of the blood pump requires the use of tools to clamp and position the blood pump and the ventricular connector. For example, after the ventricular connector is connected to the human heart by suturing, the blood pump needs to be mounted on the ventricular connector by operating the clamp, so that the blood pump is finally installed in the human heart.

[0003] A clamp is a device used to clamp and manipulate a target object. It can clamp and release the target object while performing certain actions. A ventricular assist device, or blood pump, includes an inlet tube and an outlet tube. When implanted in the human body, the outlet tube is connected to the aorta through an artificial blood vessel, and the inlet tube is inserted into the ventricle through the opening on the apex of the heart. In order to fix the inlet tube relative to the heart, the blood pump is usually connected to the heart through a ventricular connector.

[0004] During the implantation of the blood pump, the sternum needs to be split, the chest cavity needs to be opened, and the patient's heart needs to be implanted. During this process, the blood pump or ventricular connector needs to be clamped by a clamp to facilitate the operation. In view of the fact that this surgical method will cause great trauma to the patient, minimally invasive surgery by opening a small incision on the patient's chest is currently gaining more and more attention. People hope to be able to deliver the blood pump and ventricular connector into the patient's body through the small chest incision. However, the current ordinary clamps take up a large space, making it difficult to deliver the ventricular connector or blood pump into the patient's body through the small incision, and are not suitable for minimally invasive surgery. Summary of the invention

[0005] Based on this, it is necessary to provide a clamp that can be suitable for minimally invasive surgery.

[0006] The clamp is used for implantation or removal of a ventricular assist device and has a clamping end and a holding end. The clamp includes:

[0007] A first clamping body, comprising a first main body, and a first clamping portion and a first handle portion provided at two ends of the first main body; and

[0008] The second clamping body comprises a second main body, and a second clamping portion and a second handle portion provided at two ends of the second main body, and the first clamping body and the second clamping body are connected to rotate around an axis;

[0009] The first clamping portion and the second clamping portion together define a clamping end of the clamp, and the first handle portion and the second handle portion together define a gripping end of the clamp;

[0010] The first handle portion is arranged obliquely relative to the first body, the second handle portion is arranged obliquely relative to the second body, and the first handle portion and the second handle portion have the same oblique direction.

[0011] In one embodiment, the first body and the second body both extend along the first direction, and at least one of the angle between the extension direction of the first handle portion and the first direction and the angle between the extension direction of the second handle portion and the first direction is 104° to 135°.

[0012] In one embodiment, the first body and the second body are both configured as long strips.

[0013] In one embodiment, the clamp further comprises a first hinge shaft and a second hinge shaft, the first hinge shaft and the second hinge shaft are arranged at intervals, and the first clamping body and the second clamping body are hinged to each other through the first hinge shaft and the second hinge shaft;

[0014] The first hinge axis and the second hinge axis are coaxially arranged.

[0015] In one embodiment, the first clamping portion includes a first end portion connected to the first body, the second clamping portion includes a second end portion connected to the second body, and the first end portion and the second end portion are hingedly connected via a first hinge axis.

[0016] In one embodiment, the first end portion and the second end portion are at least partially overlapped with each other along the first direction, and the first hinge axis is located on the overlapped portion of the first end portion and the second end portion.

[0017] In one embodiment, the first handle portion includes a third end portion connected to the first body, the second handle portion includes a fourth end portion connected to the second body, and the third end portion and the fourth end portion are hingedly connected via a second hinge shaft.

[0018] In one embodiment, the first handle portion further includes a third protrusion protruding from the third end portion, the second handle portion further includes a fourth protrusion protruding from the fourth end portion, and the second hinge axis is disposed on the third protrusion and passes through the fourth protrusion.

[0019] In one embodiment, the first clamping portion includes a first clamping surface, the second clamping portion includes a second clamping surface, and the first clamping surface and the second clamping surface are arranged opposite to each other;

[0020] The first clamping surface and the second clamping surface are both provided with meshing teeth, and the meshing teeth are used for meshing with the clamping target.

[0021] In one embodiment, the meshing teeth on the first clamping surface are located in a local area of ​​the first clamping surface away from the first body;

[0022] The meshing teeth on the second clamping surface are located in a local area of ​​the second clamping surface away from the second body.

[0023] In one embodiment, the first clamping surface and the second clamping surface are both configured as concave surfaces;

[0024] A local area of ​​the first clamping surface close to the first main body is provided with a first protrusion; a local area of ​​the second clamping surface close to the second main body is provided with a second protrusion.

[0025] In one embodiment, the thickness of the first clamping portion and the second clamping portion gradually decreases and increases along opposite directions.

[0026] In one embodiment, the clamp further includes a first locking assembly, and the first locking assembly is used to lock the first clamping body at a preset position relative to the second clamping body.

[0027] In one embodiment, the first locking assembly includes:

[0028] a locking rod connected to the first handle portion and passing through the second handle portion; and

[0029] The first locking piece is connected to the end of the locking rod passing through the second handle portion. The position of the first locking piece on the locking rod is adjustable to adjust the interval between the first handle portion and the second handle portion.

[0030] In one embodiment, the first locking member and the locking rod are threadably matched.

[0031] In one embodiment, the first locking assembly includes:

[0032] A first swing rod, one end of which is hinged to the second handle portion, and the other end of which passes through the first handle portion, and the first swing rod is engaged with the first handle portion;

[0033] The first elastic member is connected to the second handle portion and is configured to apply an elastic force to the first handle portion away from the second handle portion.

[0034] In one embodiment, a plurality of first clamping grooves are provided on one side of the first swing arm facing the first handle portion, and each first clamping groove is for the first handle portion to be clamped.

[0035] In one embodiment, the clamp further includes a third hinge axis, and the first clamp body and the second clamp body are hingedly connected via the third hinge axis.

[0036] In one embodiment, the first handle portion includes a third end portion connected to the first body, the second handle portion includes a fourth end portion connected to the second body, and the third end portion and the fourth end portion are hingedly connected via a third hinge axis.

[0037] In one embodiment, the third hinge axis is perpendicular to the extension direction of the first body and the second body.

[0038] In one embodiment, the fourth end of the second handle portion passes through the third end of the first handle portion and is connected to the second body;

[0039] The third hinge shaft is hinged to the overlapping portion of the third end portion and the fourth end portion.

[0040] In one embodiment, the first clamping portion extends from the first body along an extension direction of the first body toward a direction away from the first body;

[0041] The second clamping portion extends from the second body along the extension direction of the second body toward a direction away from the second body;

[0042] The first clamping portion and the second clamping portion are both configured as bent structures bent in directions away from each other.

[0043] In one embodiment, the first clamping portion includes a first clamping surface, the second clamping portion includes a second clamping surface, and the first clamping surface and the second clamping surface are arranged opposite to each other;

[0044] The first clamping surface extends along an extension direction of the first body;

[0045] The second clamping surface extends along an extension direction of the second body.

[0046] In one embodiment, both the first clamping surface and the second clamping surface are provided with buffer pads.

[0047] In one embodiment, the clamp further includes a second locking assembly, and the second locking assembly is used to lock the first clamping body at a preset position relative to the second clamping body.

[0048] In one embodiment, the second locking assembly includes:

[0049] a second elastic member connected to the first handle portion and configured to apply an elastic force to the second handle portion away from the first handle portion; and

[0050] The second locking piece is hinged to the first handle portion, and is used for engaging with the end portion of the second handle portion.

[0051] In one embodiment, a plurality of second slots are provided on a side of the second locking member facing the second handle portion, and each second slot is for the second handle portion to be hooked.

[0052] The details of one or more embodiments of the present application are set forth in the following drawings and description. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application, and ordinary technicians in this field can obtain other drawings based on the disclosed drawings without paying any creative work.

[0054] FIG1 is a schematic diagram of the structure of a clamp provided in Example 1 of the present application;

[0055] FIG2 is a schematic diagram of the clamp provided in Example 1 of the present application from another angle;

[0056] FIG3 is a schematic diagram of the exploded structure of the clamp provided in Example 1 of the present application;

[0057] FIG4 is a schematic diagram of the structure of a clamp provided in Example 2 of the present application;

[0058] FIG5 is a schematic cross-sectional view of the structure of the clamp provided in Example 2 of the present application;

[0059] FIG6 is a schematic diagram of the structure of a clamp provided in Example 3 of the present application;

[0060] FIG7 is a schematic diagram of the exploded structure of the clamp provided in Example 3 of the present application;

[0061] FIG8 is a schematic diagram of a partial structure of a clamp provided in Example 3 of the present application;

[0062] FIG9 is a schematic diagram of the structure of a clamp provided in Example 4 of the present application;

[0063] FIG10 is a schematic diagram of the exploded structure of the clamp provided in Example 4 of the present application;

[0064] FIG11 is a schematic diagram of the connection structure between the ventricular connector and the blood pump;

[0065] FIG12 is a schematic diagram of the structure of the cooperation between the clamp and the ventricular connector provided in an embodiment of the present application;

[0066] FIG. 13 is a schematic structural diagram of the cooperation between the clamp, the ventricular connector and the blood pump provided in an embodiment of the present application.

[0067] Description of reference numerals:

[0068] 100, 200, clamp; 101, clamping end; 102, holding end;

[0069] 10. first clamping body; 20. first main body; 30. first clamping portion; 31. first end portion; 32. first clamping surface; 321. first protruding portion; 33. meshing teeth; 40. first handle portion; 41. third end portion; 411. third protruding portion;

[0070] 50, second clamping body; 60, second main body; 70, second clamping portion; 71, second end portion; 72, second clamping surface; 721, second protruding portion; 80, second handle portion; 81, fourth end portion; 811, fourth protruding portion;

[0071] 91. first hinge axis; 92. second hinge axis; 93. third hinge axis; 94. buffer pad;

[0072] 110. A first locking assembly;

[0073] 121. locking rod; 122. first locking member;

[0074] 131, first swing rod; 132, first elastic member; 133, first slot; 134, first through hole;

[0075] 140. A second locking assembly;

[0076] 141, second elastic member; 142, second locking member; 143, second slot;

[0077] F, first direction; S, second direction; S1, extension direction of the first handle portion; S2, extension direction of the second handle portion; S3, extension direction of the third handle portion; S4, extension direction of the fourth handle portion; O, axis;

[0078] 210, third clamping body; 211, third main body; 212, third clamping portion; 213, third handle portion;

[0079] 220, fourth clamping body; 221, fourth main body; 222, fourth clamping portion; 223, fourth handle portion;

[0080] 230, fourth hinge axis; 240, fourth through hole;

[0081] 250, third locking assembly;

[0082] 251, first locking arm; 252, second locking arm; 253, third meshing tooth;

[0083] 310, ventricular connector; 311, fixing portion; 312, skirt; 320, blood pump; 321, outlet tube; 322, inlet tube;

[0084] 400. Heart; 420. First blood vessel; 410. Aorta; 430. Apex; 440. Target; 450. Opening. DETAILED DESCRIPTION

[0085] 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. However, the present application can be implemented in many other ways different from those described herein, and 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.

[0086] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0088] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0090] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0091] The clamp of the embodiment of the present application is described below with reference to the accompanying drawings.

[0092] Embodiment 1

[0093] 1 is a schematic diagram of the structure of the clamp 100 provided in the first embodiment of the present application, FIG. 2 is a schematic diagram of the clamp 100 provided in the first embodiment of the present application from another angle, and FIG. 3 is a schematic diagram of the exploded structure of the clamp 100 provided in the first embodiment of the present application.

[0094] 1 , a clamp 100 provided in an embodiment of the present application is applied to the implantation or removal of a ventricular assist device, and comprises a clamping end 101 and a holding end 102. The holding end 102 is for an operator to hold, and the clamping end 101 can hold a target object.

[0095] The clamp 100 includes a first clamp body 10 and a second clamp body 50. The first clamp body 10 includes a first main body 20, and a first clamping portion 30 and a first handle portion 40 provided at both ends of the first main body 20. The second clamp body 50 includes a second main body 60, and a second clamping portion 70 and a second handle portion 80 provided at both ends of the second main body 60. The first clamp body 10 and the second clamp body 50 are rotatably connected around an axis O. The first clamping portion 30 and the second clamping portion 70 jointly define a clamping end 101 of the clamp 100, and the first handle portion 40 and the second handle portion 80 jointly define a gripping end 102 of the clamp 100. The first handle portion 40 is tilted relative to the first main body 20, and the second handle portion 80 is tilted relative to the second main body 60, and the first handle portion 40 and the second handle portion 80 have the same tilting direction. That is, the first handle portion 40 and the second handle portion 80 are tilted toward the same side of the clamp 100.

[0096] The first clamping part 30 is arranged at the end of the first body 20, and the second clamping part 70 is arranged at the end of the second body 60, so that the clamping end 101 defined by the first clamping part 30 and the second clamping part 70 is located at the end of the first body 20 and the second body 60. Since the first handle part 40 is tilted relative to the first body 20, the second handle part 80 is tilted relative to the second body 60, and the first handle part 40 and the second handle part 80 have the same tilting direction, during use, the operator can hold the gripping end 102, and use the first clamping part 30 and the second clamping part 70 at the ends of the first body 20 and the second body 60 to clamp the target object, and can hold the target object through the opening on the target object and extend it into the inside of the target object while keeping the first body 20 and the second body 60 perpendicular to the target object. In this way, the target object can be sent to the target position inside the target object when the opening on the target object is small, which can be suitable for minimally invasive surgery. Of course, when the first body 20 and the second body 60 are perpendicular to the object of action, the first handle portion 40 and the second handle portion 80 are bent toward the direction of the object of action to facilitate operation, and the first handle portion 40 and the second handle portion 80 will not block the operator's line of sight.

[0097] In the embodiment of the present application, the first body 20 and the second body 60 both extend in the first direction F, and at least one of the angles between the extension direction S1 of the first handle portion and the first direction F and the angle between the extension direction S2 of the second handle portion and the first direction F is 104° to 135°, and further, the angle may be 109°. Such a configuration can form an avoidance space to prevent the operator's hand from contacting the object of action.

[0098] In the embodiment of the present application, the first body 20 and the second body 60 are both configured as long strips, so that the occupied space can be minimized and the opening can be avoided from being touched when entering the interior of the object through the opening on the object.

[0099] In the embodiment of the present application, referring to FIG. 2 and FIG. 3 , the clamp 100 further includes a first hinge shaft 91 and a second hinge shaft 92, the first hinge shaft 91 and the second hinge shaft 92 are arranged at intervals, and the first clamp body 10 and the second clamp body 50 are hinged to each other through the first hinge shaft 91 and the second hinge shaft 92. And the first hinge shaft 91 and the second hinge shaft 92 are coaxially arranged. The straight line where the axis of the first hinge shaft 91 and the axis of the second hinge shaft 92 are located is also the axis O of the relative rotation of the first clamp body 10 and the second clamp body 50. The axis O is outside the first body 20 and the second body 60, so that the first body 20 and the second body 60 rotate around the rotation axis outside themselves when they rotate relative to each other, so that when the first handle part 40 and the second handle part 80 are close to or away from each other, the first clamp part 30 and the second clamp part 70 are close to or away from each other.

[0100] Further, in combination with Figures 1, 2 and 3, the first clamping portion 30 includes a first end portion 31 connected to the first body 20, the second clamping portion 70 includes a second end portion 71 connected to the second body 60, and the first end portion 31 and the second end portion 71 are hinged via a first hinge shaft 91.

[0101] In a specific implementation, the first end portion 31 and the second end portion 71 are at least partially overlapped with each other along the first direction F, and the first hinge axis 91 is located on the overlapping portion of the first end portion 31 and the second end portion 71 .

[0102] Further, the first handle portion 40 includes a third end portion 41 connected to the first body 20, the second handle portion 80 includes a fourth end portion 81 connected to the second body 60, and the third end portion 41 and the fourth end portion 81 are hinged via a second hinge shaft 92. In specific implementation, the first handle portion 40 further includes a third protruding portion 411, which is protrudingly disposed on the third end portion 41, the second handle portion 80 further includes a fourth protruding portion 811, which is protrudingly disposed on the fourth end portion 81, and the second hinge shaft 92 is disposed on the third protruding portion 411 and passes through the fourth protruding portion 811. The second hinge shaft 92 can be integrally formed with the third protruding portion 411.

[0103] 1 , the first clamping portion 30 includes a first clamping surface 32, and the second clamping portion 70 includes a second clamping surface 72. The first clamping surface 32 and the second clamping surface 72 are arranged opposite to each other. Thus, when the first clamping portion 30 and the second clamping portion 70 are close to each other, the first clamping surface 32 and the second clamping surface 72 clamp the target object together.

[0104] The first clamping surface 32 and the second clamping surface 72 are both provided with meshing teeth 33 , and the meshing teeth 33 are used for meshing with the target object.

[0105] 1 and 2, the meshing teeth 33 on the first clamping surface 32 are located in a local area of ​​the first clamping surface 32 away from the first body 20, and the meshing teeth 33 on the second clamping surface 72 are located in a local area of ​​the second clamping surface 72 away from the second body 60. In this way, when the first clamping portion 30 and the second clamping portion 70 just contact the target object, the meshing teeth 33 do not contact the target object, so as to avoid being stuck by the matching structure of the outer peripheral surface of the target object.

[0106] Furthermore, the first clamping surface 32 and the second clamping surface 72 are both configured as concave surfaces. A local area of ​​the first clamping surface 32 close to the first body 20 is provided with a first protrusion 321; a local area of ​​the second clamping surface 72 close to the second body 60 is provided with a second protrusion 721. In this way, when the first clamping portion 30 and the second clamping portion 70 just contact the target object, the first protrusion 321 and the second protrusion 721 contact the target object before the first clamping surface 32 and the second clamping surface 72, playing a role of pre-positioning, so that when the operator's vision is blocked (in the case of blind clamping), the first clamping portion 30 and the second clamping portion 70 can contact the target object, and the target object can be quickly clamped.

[0107] In the embodiment of the present application, the first clamping portion 30 and the second clamping portion 70 gradually increase in thickness along the directions away from each other, so that the configuration can better adapt to the outer contour of the target object and avoid interference with the target object.

[0108] In the embodiment of the present application, the clamp 100 further includes a first locking assembly 110, which is used to lock the first clamping body 10 at a preset position relative to the second clamping body 50. In this way, after the first clamping body 10 is rotated to the preset position relative to the second clamping body 50, the first locking assembly 110 can be used to lock it to prevent the target object from escaping.

[0109] In a specific implementation, the first locking assembly 110 includes a locking rod 121 and a first locking member 122. The locking rod 121 is connected to the first handle portion 40 and passes through the second handle portion 80. The locking rod 121 can be connected to the first handle portion 40, for example, by a screw or the like. The first locking member 122 is connected to the end of the locking rod 121 that passes through the second handle portion 80, and the position of the first locking member 122 on the locking rod 121 is adjustable to adjust the spacing between the first handle portion 40 and the second handle portion 80. Exemplarily, the first locking member 122 and the locking rod 121 are threadedly matched.

[0110] The clamp 100 of this embodiment is used in situations where the opening on the target is small. In this embodiment, the target may be, for example, a ventricular connector.

[0111] Embodiment 2

[0112] FIG. 4 is a schematic diagram of the structure of the clamp 100 provided in the second embodiment of the present application, and FIG. 5 is a schematic diagram of the cross-sectional structure of the clamp 100 provided in the second embodiment of the present application.

[0113] This embodiment improves the structure of the first locking assembly 110 on the basis of the clamp 100 of the first embodiment. The remaining parts of the clamp 100 are the same as those of the first embodiment and will not be described again.

[0114] 4 and 5 , the first locking assembly 110 includes a first swing rod 131 and a first elastic member 132 .

[0115] One end of the first swing rod 131 is hinged to the second handle portion 80, and the other end passes through the first handle portion 40, and the first swing rod 131 is engaged with the first handle portion 40. The first elastic member 132 is connected to the second handle portion 80, and is configured to apply an elastic force to the first handle portion 40 to move away from the second handle portion 80. Due to the provision of the first elastic member 132, the first handle portion 40 and the second handle portion 80 always tend to move away from each other and will not approach each other. At the same time, the first swing rod 131 is engaged with the first handle portion 40, so that the first handle portion 40 and the second handle portion 80 are locked with each other.

[0116] Furthermore, a plurality of first slots 133 are provided on one side of the first swing arm 131 facing the first handle portion 40, and each first slot 133 is for the first handle portion 40 to be hooked. In specific implementation, a first through hole 134 is provided on the first handle portion 40, and when the first swing arm 131 passes through the first through hole 134, the first slot 133 is hooked with the edge of the opening of the first through hole 134.

[0117] The clamp 100 of this embodiment is used in situations where the opening on the target is small. In this embodiment, the target may be, for example, a ventricular connector.

[0118] Embodiment 3

[0119] Figure 6 is a schematic diagram of the structure of the clamp 100 provided in the third embodiment of the present application, Figure 7 is a schematic diagram of the decomposed structure of the clamp 100 provided in the third embodiment of the present application, and Figure 8 is a schematic diagram of the partial structure of the clamp 100 provided in the third embodiment of the present application.

[0120] This embodiment improves the first clamping portion 30, the second clamping portion 70, the first handle portion 40, the second handle portion 80, the first locking assembly 110, etc. on the basis of the clamp 100 of the first embodiment. The remaining structures in the clamp 100 are similar to those of the first embodiment and will not be repeated here.

[0121] 6 and 7 , the clamper 100 further includes a third hinge shaft 93 , and the first clamping body 10 and the second clamping body 50 are hingedly connected via the third hinge shaft 93 .

[0122] In addition, as before, the first handle portion 40 includes a third end portion 41 connected to the first body 20 , and the second handle portion 80 includes a fourth end portion 81 connected to the second body 60 , and the third end portion 41 and the fourth end portion 81 are hingedly connected via a third hinge shaft 93 .

[0123] Furthermore, the third hinge axis 93 is perpendicular to the extension direction of the first body 20 and the second body 60 , that is, the first direction F. Thus, when the first body 20 rotates relative to the second body 60 around the third hinge axis 93 , the first clamping portion 30 and the second clamping portion 70 move closer to or farther from each other.

[0124] Furthermore, the fourth end 81 of the second handle portion 80 passes through the third end 41 of the first handle portion 40 and is connected to the second body 60. The third hinge shaft 93 is hinged to the overlapping portion of the third end 41 and the fourth end 81.

[0125] In this embodiment, the first clamping portion 30 extends from the first body 20 along the extension direction of the first body 20 in a direction away from the first body 20, and the second clamping portion 70 extends from the second body 60 along the extension direction of the second body 60 in a direction away from the second body 60. The first clamping portion 30 and the second clamping portion 70 are both configured as a bending structure that bends in directions away from each other. In this way, when the clamp 100 is used, when the first body 20 rotates relative to the second body 60 around the third hinge shaft 93, the first clamping portion 30 opens or closes relative to the second clamping portion 70.

[0126] Further, the first clamping portion 30 includes a first clamping surface 32, the second clamping portion 70 has a second clamping surface 72, and the first clamping surface 32 and the second clamping surface 72 are arranged opposite to each other. The first clamping surface 32 extends along the extension direction of the first body 20, and the second clamping surface 72 extends along the extension direction of the second body 60. In some embodiments, the extension direction of the first clamping surface 32 and the extension direction of the second clamping surface 72 are both perpendicular to the third hinge axis 93.

[0127] In the embodiment of the present application, a buffer pad 94 is disposed on both the first clamping surface 32 and the second clamping surface 72 .

[0128] Regarding the locking of the first clamping body 10 and the second clamping body 50 , the clamp 100 further includes a second locking assembly 140 , and the second locking assembly 140 is used to lock the first clamping body 10 at a preset position relative to the second clamping body 50 .

[0129] In a specific implementation, the second locking assembly 140 includes a second elastic member 141 and a second locking member 142 .

[0130] The second elastic member 141 is connected to the first handle portion 40 and is configured to apply an elastic force to the second handle portion 80 away from the first handle portion 40. The second locking member 142 is hinged to the first handle portion 40 and is used to engage with the end of the second handle portion 80.

[0131] Furthermore, a plurality of second locking grooves 143 are provided on one side of the second locking member 142 facing the second handle portion 80 , and each second locking groove 143 is for the second handle portion 80 to be hooked.

[0132] 8 , the second slot 143 is formed in a barb shape so that the end of the second handle portion 80 can be hung in the second slot 143. In addition, the second elastic member 141 also applies an elastic force to the second handle portion 80 away from the first handle portion 40, thereby locking the first handle portion 40 and the second handle portion 80 with each other.

[0133] The clamp 100 of this embodiment is used in situations where the opening on the target is small. In this embodiment, the target may be, for example, a blood pump.

[0134] Embodiment 4

[0135] FIG9 is a schematic diagram of the structure of the clamp 200 provided in the fourth embodiment of the present application, and FIG10 is a schematic diagram of the exploded structure of the clamp 200 provided in the fourth embodiment of the present application.

[0136] 9 and 10 , the clamper 200 of this embodiment includes a third clamping body 210 and a fourth clamping body 220 .

[0137] The third clamping body 210 includes a third main body 211, and a third clamping portion 212 and a third handle portion 213 provided at both ends of the third main body 211. The fourth clamping body 220 includes a fourth main body 221, and a fourth clamping portion 222 and a fourth handle portion 223 provided at both ends of the fourth main body 221. The third clamping body 210 and the fourth clamping body 220 are rotatably connected around a fourth hinge shaft 230. The third clamping portion 212 and the fourth clamping portion 222 cooperate with each other to clamp the target object. The third handle portion 213 and the fourth handle portion 223 cooperate with each other to be held by a human hand.

[0138] The third handle portion 213 is tilted relative to the third body 211 toward a direction away from the target object, the fourth handle portion 223 is tilted relative to the fourth body 221 toward a direction away from the target object, and the extension direction of the third clamping portion 212 and the fourth clamping portion 222 is the same as the extension direction of the third body 211 and the fourth body 221.

[0139] During use, the operator can hold the gripping end 102, and use the third clamping portion 212 and the fourth clamping portion 222 at the ends of the third body 211 and the fourth body 221 to clamp the target object. While keeping the third body 211 and the fourth body 221 parallel to the target object, the operator can hold the target object through the opening on the target object and extend it into the target object. In this way, the third body 211 and the fourth body 221 can be prevented from blocking the operator's sight, and the third body 211 and the fourth body 221 can be prevented from interfering with the cables, pipes, etc. on the target object. Of course, during specific operations, the third handle portion 213 and the fourth handle portion 223 are bent upwards so that the operator's hands do not interfere with the target object.

[0140] Furthermore, the third body 211 and the fourth body 221 both extend along the second direction S, and at least one of the angles between the extension direction S3 of the third handle portion and the second direction S and the angle between the extension direction S4 of the fourth handle portion and the second direction S is 135°~145°, preferably 140°.

[0141] In addition, the third body 211 and the fourth body 221 are both configured as long strips.

[0142] 10 , a fourth through hole 240 is formed on the third body 211 , and a portion of the fourth body 221 passes through the fourth through hole 240 . The third body 211 and the fourth body 221 are hingedly connected by a fourth hinge shaft 230 at an overlapping position of the third body 211 and the fourth body 221 .

[0143] In addition, the structure of the third clamping portion 212 is the same as that of the first clamping portion 30 , and the structure of the fourth clamping portion 222 is the same as that of the second clamping portion 70 , which will not be described in detail herein.

[0144] In addition, the clamp 200 further includes a third locking assembly 250, which is used to lock the third clamping body 210 at a preset position relative to the fourth clamping body 220. In specific implementation, the third locking assembly 250 includes a first locking arm 251 and a second locking arm 252. The first locking arm 251 is connected to the third handle portion 213 and extends toward the fourth handle portion 223, and the second locking arm 252 is connected to the fourth handle portion 223 and extends toward the third handle portion 213. The facing surfaces of the first locking arm 251 and the second locking arm 252 are respectively provided with matching third meshing teeth 253. The first locking arm 251 and the second locking arm 252 are pressed against each other, and the third meshing teeth 253 on the first locking arm 251 and the second locking arm 252 can be pressed against each other to achieve the locking of the third clamping body 210 and the fourth clamping body 220.

[0145] The clamp 100 of this embodiment is used in situations where the opening on the target is relatively large. In this embodiment, the target may be, for example, a ventricular connector.

[0146] Figure 11 is a schematic diagram of the connection structure between the ventricular connector and the blood pump, Figure 12 is a schematic diagram of the structure in which the clamp provided in an embodiment of the present application cooperates with the ventricular connector, and Figure 13 is a schematic diagram of the structure in which the clamp provided in an embodiment of the present application cooperates with the ventricular connector and the blood pump.

[0147] 11, 12 and 13, the process of using the clamps provided in the first and third embodiments will be described below.

[0148] Referring to FIG. 11 , FIG. 11 shows the effect of blood pump 320 implanted in heart 400, where one end of first blood vessel 420 (e.g., an artificial blood vessel or a natural blood vessel) is connected to aorta 410 of heart 400, and the other end is connected to outlet tube 321 of blood pump 320. A hole (not shown) is provided at the apex 430 of heart 400, and inlet tube 322 of blood pump 320 is inserted into the ventricle of heart 400 through the hole.

[0149] The ventricular connector 310 may include a fixing portion 311 and a skirt 312 connected to each other, the skirt 312 is sutured to the apex 430 , and the blood pump 320 is connected to the fixing portion 311 to be fixed to the heart 400 through the ventricular connector 310 .

[0150] 12 , the first clamping portion 30 and the second clamping portion 70 of the clamper 100 are clamped on the outer circumferential side of the fixing portion 311 , respectively.

[0151] 13 , when the opening 450 on the object 440 is small, the clamp of the first embodiment and the clamp of the second embodiment can be used to perform minimally invasive surgery. Specifically, the clamp of the first embodiment clamps the ventricular connector 310, and the clamp of the third embodiment clamps the blood pump 320, and the two cooperate with each other to implement the implantation process of the blood pump 320, and will not interfere with the object, as shown in FIG13 .

[0152] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0153] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0154] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A clamp, used for implantation or removal of a ventricular assist device, having a clamping end and a gripping end, characterized in that: The holder comprises: A first clamping body, comprising a first main body, and a first clamping portion and a first handle portion provided at two ends of the first main body; and A second clamping body, comprising a second main body, and a second clamping portion and a second handle portion provided at two ends of the second main body, wherein the first clamping body and the second clamping body are rotatably connected around an axis; The first clamping portion and the second clamping portion jointly define a clamping end of the clamp, and the first handle portion and the second handle portion jointly define a gripping end of the clamp; The first handle portion is arranged obliquely relative to the first main body, the second handle portion is arranged obliquely relative to the second main body, and the first handle portion and the second handle portion have the same oblique direction.

2. The clamp according to claim 1, characterized in that The first body and the second body both extend along a first direction, and at least one of an angle between an extending direction of the first handle portion and the first direction and an angle between an extending direction of the second handle portion and the first direction is 104° to 135°.

3. The clamp according to claim 1, characterized in that The first body and the second body are both configured as long strips.

4. The holder according to claim 1, characterized in that The clamp further comprises a first hinge shaft and a second hinge shaft, the first hinge shaft and the second hinge shaft are arranged at intervals, and the first clamping body and the second clamping body are hinged to each other through the first hinge shaft and the second hinge shaft; The first hinge axis and the second hinge axis are coaxially arranged.

5. The holder according to claim 4, characterized in that The first clamping portion includes a first end portion connected to the first body, the second clamping portion includes a second end portion connected to the second body, and the first end portion and the second end portion are hingedly connected via the first hinge shaft.

6. The holder according to claim 5, characterized in that The first end portion and the second end portion are at least partially overlapped with each other along a first direction, and the first hinge axis is located on the overlapped portion of the first end portion and the second end portion.

7. The holder according to claim 4, characterized in that The first handle portion includes a third end portion connected to the first body, the second handle portion includes a fourth end portion connected to the second body, and the third end portion and the fourth end portion are hingedly connected via the second hinge shaft.

8. The holder according to claim 7, characterized in that The first handle portion further includes a third protrusion, which is protruding from the third end portion. The second handle portion further includes a fourth protrusion, which is protruding from the fourth end portion. The second hinge axis is arranged on the third protrusion and passes through the fourth protrusion.

9. The holder according to any one of claims 4 to 8, characterized in that: The first clamping portion includes a first clamping surface, the second clamping portion includes a second clamping surface, and the first clamping surface and the second clamping surface are arranged opposite to each other; The first clamping surface and the second clamping surface are both provided with meshing teeth, and the meshing teeth are used to mesh with the clamping target.

10. The holder according to claim 9, characterized in that The meshing teeth on the first clamping surface are located in a local area of ​​the first clamping surface away from the first body; The meshing teeth on the second clamping surface are located in a local area of ​​the second clamping surface away from the second body.

11. The holder according to claim 9, characterized in that The first clamping surface and the second clamping surface are both configured as concave surfaces; A local area of ​​the first clamping surface close to the first main body is provided with a first protrusion; a local area of ​​the second clamping surface close to the second main body is provided with a second protrusion.

12. The holder according to any one of claims 4 to 8, characterized in that The thickness of the first clamping portion and the second clamping portion gradually decreases and increases along directions away from each other.

13. The holder according to any one of claims 4 to 8, characterized in that: The clamp further comprises a first locking assembly, wherein the first locking assembly is used to lock the first clamping body at a preset position relative to the second clamping body.

14. The holder according to claim 13, characterized in that The first locking assembly comprises: a locking rod connected to the first handle portion and passing through the second handle portion; and The first locking piece is connected to the end of the locking rod passing through the second handle portion, and the position of the first locking piece on the locking rod is adjustable to adjust the interval between the first handle portion and the second handle portion.

15. The holder according to claim 14, characterized in that The first locking piece and the locking rod are threadably matched.

16. The holder according to claim 13, characterized in that The first locking assembly comprises: a first swing rod, one end of which is hinged to the second handle portion, and the other end of which passes through the first handle portion, and the first swing rod is engaged with the first handle portion; The first elastic member is connected to the second handle portion and is configured to apply an elastic force to the first handle portion away from the second handle portion.

17. The holder according to claim 16, characterized in that A plurality of first clamping grooves are provided on one side of the first swing rod facing the first handle portion, and each of the first clamping grooves is used for the first handle portion to be clamped.

18. The holder according to claim 1, characterized in that The clamper further includes a third hinge shaft, and the first clamping body and the second clamping body are hingedly connected via the third hinge shaft.

19. The holder according to claim 18, characterized in that The first handle portion includes a third end portion connected to the first body, the second handle portion includes a fourth end portion connected to the second body, and the third end portion and the fourth end portion are hingedly connected via the third hinge shaft.

20. The holder according to claim 19, characterized in that The third hinge axis is perpendicular to an extending direction of the first body and the second body.

21. The holder according to claim 19, characterized in that The fourth end of the second handle portion passes through the third end of the first handle portion and is connected to the second body; The third hinge shaft is hinged to the overlapping portion of the third end portion and the fourth end portion.

22. The holder according to any one of claims 18 to 21, characterized in that The first clamping portion extends from the first body along an extension direction of the first body toward a direction away from the first body; The second clamping portion extends from the second body along an extension direction of the second body toward a direction away from the second body; The first clamping portion and the second clamping portion are both configured as bent structures bent in directions away from each other.

23. The holder according to claim 22, characterized in that The first clamping portion includes a first clamping surface, the second clamping portion includes a second clamping surface, and the first clamping surface and the second clamping surface are arranged opposite to each other; The first clamping surface extends along an extension direction of the first body; The second clamping surface extends along an extension direction of the second body.

24. The holder according to claim 23, characterized in that Buffer pads are provided on the first clamping surface and the second clamping surface.

25. The holder according to any one of claims 18 to 21, characterized in that The clamp further includes a second locking assembly, and the second locking assembly is used to lock the first clamping body at a preset position relative to the second clamping body.

26. The holder according to claim 25, characterized in that The second locking assembly comprises: a second elastic member connected to the first handle portion and configured to apply an elastic force to the second handle portion away from the first handle portion; and The second locking piece is hinged to the first handle portion, and the second locking piece is used for engaging with the end portion of the second handle portion.

27. The holder according to claim 26, characterized in that A plurality of second clamping grooves are provided on one side of the second locking member facing the second handle portion, and each of the second clamping grooves is for the second handle portion to be clamped.

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