Disclosure of Invention
In view of the above, there is a need for an atrial appendage clip that addresses the above problems.
An atrial appendage clip for holding an atrial appendage, comprising:
one end of the first clamping arm is connected with a first clamping piece;
one end of the second clamping arm is connected with a second clamping piece;
the other end of the first clamping arm is rotatably connected with the other end of the second clamping arm through the damping piece;
the first clamping arm and the second clamping arm relatively rotate and drive the first clamping piece and the second clamping piece to move along the directions close to or far away from each other so as to clamp or loosen the auricle.
Above-mentioned auricle presss from both sides, during the use, the user can operate first arm lock and the relative rotation of second arm lock in order to adjust the contained angle of first arm lock and second arm lock according to the not equidimension of auricle to utilize first holder and second holder to carry the auricle, thereby make the auricle closed in order to prevent that the blood from flowing into auricle and forming the thrombus, also can prevent simultaneously that the existing thrombus in the auricle from droing and getting into in the circulation blood system. Because the first clamping arm and the second clamping arm are rotatably connected through the damping piece, when the first clamping piece and the second clamping piece are clamped on the auricle, the rotating damping force can be generated between the first clamping arm and the second clamping arm so as to keep the included angle between the first clamping arm and the second clamping arm fixed. On the one hand, the damping force can prevent the first clamping piece and the second clamping piece from opening to ensure that the auricle is in a closed state; on the other hand, when the auricle progressively atrophied under the closed condition, the damping force can prevent that the contained angle of first arm lock and second arm lock from further reducing and producing too big clamping-force to the auricle to avoid the auricle further atrophied to drop. In other words, the auricle clamp of this application is making the auricle closure and atrophy to a certain degree after, and the auricle clamp can not produce too big clamping-force to the auricle, has avoided the auricle to be pinched absolutely the risk that drops.
In one embodiment, the first clamping arm is provided with a rotating groove, the second clamping arm is provided with a rotating part, the second clamping arm extends into the rotating groove through the rotating part so as to be rotatably connected with the first clamping arm, and the damping part is arranged on the groove wall of the rotating groove in a penetrating manner so that the rotating part and the groove wall are mutually pressed to generate a rotating damping force.
In one embodiment, the damping member is screwed to the rotation groove to adjust a rotational damping force between the rotation portion and the rotation groove. The user can be according to actual need, adjusts the interact power between rotation portion and the groove wall through adjusting the elasticity degree that damping piece and rotation groove are connected, and then adjusts the size of the rotation damping force between first arm lock and the second arm lock.
In one embodiment, the first clamping arm is provided with a first damping hole, the second clamping arm is fixed to the damping member, the first clamping arm is sleeved on the damping member through the first damping hole to be rotatably connected with the second clamping arm, and the damping member is in interference fit with the first damping hole to enable the hole wall of the first damping hole and the outer peripheral surface of the damping member to be mutually extruded to generate a rotary damping force.
In one embodiment, the second clamping arm is provided with a second damping hole, and the second clamping arm is sleeved at one end of the damping piece through the second damping hole in an interference fit manner so as to be fixed with the damping piece; through the interference fit of the second damping hole and the damping piece, the connection of the second clamping arm and the damping piece can be provided with a certain elastic piece instead of a hard connection, and the mode is favorable for better controlling the torsion value and providing more stable damping force.
Or, the second clamping arm and the damping piece are integrally formed.
In one embodiment, the damping member is a knurled pin.
In one embodiment, the damping member is a rivet, the other end of the first clamping arm is overlapped with the other end of the second clamping arm, and the other end of the first clamping arm is riveted with the other end of the second clamping arm through the damping member, so that two opposite surfaces at the overlapped part of the first clamping arm and the second clamping arm are pressed against each other to generate a rotational damping force. The user can compress tightly the overlapping place of first arm and second arm through the riveting mode in order to produce the rotational damping force to can also adjust the size of moment of torsion through the depth of controlling the upset rivet, provide stable suitable damping force.
In one embodiment, the first clamping piece and the second clamping piece are both linear or arc-shaped. Because the auricle is attached to the atrium, when clamping the auricle, first holder and second holder are the arc structure and can laminate the atrium radian better, reduce the damage to the atrium tissue.
In one embodiment, the first clamping member includes a first inner tube and a first outer tube sleeved on the first inner tube, the first inner tube is connected to the first clamping arm, and the first outer tube is an elastic tube. When the auricle is clamped and closed, the first outer tube with elasticity can play a role in buffering, and damage to the auricle is reduced.
In one embodiment, the number of the first clamping arm and the number of the second clamping arm are two, one of the first clamping arms corresponds to one of the second clamping arms, one of the first clamping arms is connected to one end of the first clamping member, one of the second clamping arms is connected to one end of the second clamping member, the other one of the first clamping arms is connected to the other end of the first clamping member, and the other one of the second clamping arms is connected to the other end of the second clamping member. Such structure setting can make first holder and second holder more stable and the distribution of centre gripping dynamics more even when centre gripping auricle.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 and 2, in one embodiment, an atrial appendage clip 10 for holding an atrial appendage is provided, which includes a first clip arm 110, a second clip arm 120, and a damping member 300. One end of the first clamping arm 110 is connected to a first clamping member 210, one end of the second clamping arm 120 is connected to a second clamping member 220, and the other end of the first clamping arm 110 is rotatably connected to the other end of the second clamping arm 120 through a damping member 300. The damping member 300 is configured to generate a rotational damping force between the first clamping arm 110 and the second clamping arm 120, and the rotational damping force can be considered to limit the opening and closing of the first clamping arm 110 and the second clamping arm 120. The first clamping arm 110 and the second clamping arm 120 clamp or release the auricle by rotating relatively and driving the first clamping member 210 and the second clamping member 220 to move in a direction approaching or separating from each other.
Optionally, the material of the first clip arm 110 and the second clip arm 120 includes, but is not limited to, a titanium alloy, a stainless steel, an aluminum alloy, pure titanium, a nickel-titanium alloy, and other metal materials.
Optionally, the connection manner of the first clamping arm 110 and the first clamping member 210 and the connection manner of the second clamping arm 120 and the second clamping member 220 include, but are not limited to, a threaded connection, a snap connection, a welding connection, a riveting connection, a crimping connection, an adhesion connection, an integral molding connection, and the like. For example, in the embodiment shown in fig. 6, the second clamping member 220 is connected to the second clamping arm 120 by a screw connection.
When the auricle clamp 10 is used, a user can operate the first clamping arm 110 and the second clamping arm 120 to rotate relatively according to different sizes of the auricle so as to adjust the included angle between the first clamping arm 110 and the second clamping arm 120, and the auricle clamp 10 is clamped by the first clamping piece 210 and the second clamping piece 220, so that the auricle is closed to prevent blood from flowing into the auricle to form thrombus, and meanwhile, the existing thrombus in the auricle can be prevented from falling into a circulating blood system. Since the first clamping arm 110 and the second clamping arm 120 are rotatably connected through the damping member 300, the damping member 300 can generate a rotational damping force between the first clamping arm 110 and the second clamping arm 120, and when the first clamping member 210 and the second clamping member 220 are clamped on the auricle, the damping force can keep the included angle between the first clamping arm 110 and the second clamping arm 120 fixed. On the one hand, the damping force may prevent the first clamping member 210 and the second clamping member 220 from opening to ensure that the auricle is in a closed state; on the other hand, when the auricle gradually atrophies under the closed state, the damping force can prevent that the contained angle of first arm lock 110 and second arm lock 120 from further dwindling and producing too big clamping-force to the auricle to avoid the auricle further atrophies to drop. In other words, after the auricle clamp 10 of the present application closes and shrinks to a certain extent, the auricle clamp 10 does not generate an excessive clamping force on the auricle, and the risk that the auricle is broken and falls off is avoided.
Referring to fig. 3, a rotation slot 111 is formed at the other end of the first clamping arm 110, i.e., the end of the first clamping arm 110 close to the second clamping arm 120 and rotatably connected to the second clamping arm 120, a rotation portion 121 is formed at the other end of the second clamping arm 120, i.e., the end of the second clamping arm 120 close to the first clamping arm 110 and rotatably connected to the first clamping arm 110, and the second clamping arm 120 extends into the rotation slot 111 through the rotation portion 121 to rotatably connect to the first clamping arm 110. The damping member 300 is inserted into a groove wall of the rotation groove 111 and fixed to the rotation groove 111, and the damping member 300 is fixed to the rotation groove 111 such that the rotation part 121 and the groove wall are pressed against each other to generate a rotational damping force.
For example, in the embodiment shown in fig. 3, the rotation slot 111 may be considered as a cut-out formed in the first clamp arm 110, through holes are formed in opposite sides of the rotation slot 111, and a thread is formed on an inner wall of one of the through holes. The rotating portion 121 of the second clamping arm 120 is shaped like a boss, and a through hole is formed thereon. The damper 300 may be a bolt, and the through hole is adapted to the damper 300 in shape and size. During installation, a user can firstly extend the rotating part 121 of the second clamping arm 120 into the rotating groove 111 of the first clamping arm 110, align the through holes one by one, and then pass bolts through a plurality of through holes along the side of the through hole without threads and be in threaded connection with the threaded through hole on the other side of the rotating groove 111, so that the groove walls on the two sides of the rotating groove 111 are pressed on the surface of the rotating part 121 by using the pulling force of the bolts. In other words, in this embodiment, the damping member 300 is simultaneously inserted into the two side walls of the rotating portion 121 and the rotating slot 111, so that the user can adjust the interaction force between the rotating portion 121 and the slot walls by adjusting the tightness degree of the connection between the damping member 300 and the rotating slot 111 according to the actual requirement, and further adjust the magnitude of the rotational damping force between the first clamping arm 110 and the second clamping arm 120.
For example, in the embodiment shown in fig. 7 and 8, the pivot portion 121 of the second clamp arm 120 has a cylindrical shape, and the pivot slot 111 of the first clamp arm 110 may be considered to be formed by folding the end of the first clamp arm 110 in half and to have a substantially question mark shape. The rotation groove 111 and the rotation portion 121 are adapted in shape and size so that the cylindrical rotation portion 121 can be inserted into the rotation groove 111 and rotated in the circumferential direction of the rotation groove 111. Similarly, through holes are formed at both opposite sides of the rotation groove 111, and a screw thread is provided at an inner wall of one of the through holes. When the damping member 300 is installed, the damping member is only inserted into the two side walls of the rotation groove 111 and is in threaded connection with one of the two side walls, so that the two side walls of the rotation groove 111 can be drawn close to compress the rotation part 121, thereby achieving the rotation connection between the rotation part 121 and the rotation groove 111 and simultaneously enabling the rotation part 121 and the wall of the rotation groove 111 to be mutually extruded to generate the rotation damping force. The rotation damping force can limit the opening and closing of the first and second clamp arms 110 and 120, and can provide a certain friction force for the connection of the rotating part 121 and the rotating slot 111 to prevent the rotating part 121 from being separated from the rotating slot 111. In addition, the structural arrangement can reduce the precision of part machining and improve the manufacturability of the part.
It should be emphasized that, when the damping force between the first clip arm 110 and the second clip arm 120 is adjusted by the damping member 300, the damping force between the first clip arm 110 and the second clip arm 120 can be considered to be constant, so that the user can intuitively feel the clamping force of the auricle clip 10 on the auricle in the process of clamping the auricle clip 10 on the auricle, that is, the auricle clip 10 of the present application has a better operation hand feeling, which is beneficial for the user to accurately adjust the auricle clip 10.
Further, in some embodiments, taking the damping member 300 as a bolt as an example, before the first clamping arm 110 and the second clamping arm 120 are locked by the bolt, a user may put a relatively soft gasket on the connection portion of the first clamping arm 110 and the second clamping arm 120, i.e., at least one groove wall of the rotation groove 111. The reason for so setting up is mainly that, in the actual operation in-process, if the material of the surface of first arm lock 110 and second arm lock 120 is relatively harder, directly screw up or unscrew first arm lock 110 and second arm lock 120 with the bolt and make the relative effort between first arm lock 110 and second arm lock 120 rise or descend rapidly, be unfavorable for between them rotational damping power. In this embodiment, after the relatively soft gasket is added into the rotating slot 111, since the first clamping arm 110 does not directly make hard contact with the second clamping arm 120, when a user screws a bolt, the variation range of the rotational damping force between the first clamping arm 110 and the second clamping arm 120 is small, which is convenient for the user to perform accurate adjustment.
Further, in some embodiments, the groove width of the rotation groove 111 may be slightly larger than the thickness of the rotation part 121 in a boss shape. Therefore, when the first and second clamp arms 110 and 120 are tightened using bolts, at least one groove wall of the rotation groove 111 is elastically deformed to press the rotation part 121 in the thickness direction of the rotation part 121, thereby gradually increasing the damping force.
Further, in some embodiments, a damping coating may be applied to the surface of the rotation slot 111 and/or the rotation portion 121, which may reduce vibration and may also function like a gasket, so that the rotation damping force between the first clamping arm 110 and the second clamping arm 120 may be changed to a smaller extent when a user screws a bolt.
Referring to fig. 4, a first damping hole 101 is formed at the other end of the first clamping arm 110, that is, the end of the first clamping arm 110 close to the second clamping arm 120 and rotatably connected to the second clamping arm 120, the other end of the second clamping arm 120, that is, the end of the second clamping arm 120 close to the first clamping arm 110 and rotatably connected to the first clamping arm 110, is fixed to the damping member 300, the first clamping arm 110 is sleeved on the damping member 300 through the first damping hole 101 to rotatably connected to the second clamping arm 120, and the damping member 300 is in interference fit with the first damping hole 101 so that the hole wall of the first damping hole 101 and the outer peripheral surface of the damping member 300 are mutually extruded to generate a rotational damping force.
Further, in the embodiment shown in fig. 4, the damping member 300 may be a knurled pin having a knurl at one end and a smooth-surfaced cylindrical rod at the other end. The other end of the second clamping arm 120 is provided with a second damping hole 102, and the second clamping arm 120 is sleeved on the smooth end of the damping member 300 through the second damping hole 102 in an interference fit manner so as to be fixed with the damping member 300. The joint of the first clamping arm 110 and the second clamping arm 120 is matched in structure, which is beneficial to improving the stability of the first clamping arm 110 after being connected with the second clamping arm 120. By providing an interference fit between the second damping hole 102 and the smooth end of the damping member 300, the second clamping arm 120 may be connected to the damping member 300 with a certain elasticity, rather than a hard connection, which helps to control the torque force and provide a more stable damping force.
In other embodiments, the second clamping arm 120 and the damping member 300 may be integrally formed. Such an arrangement may make the second clamp arm 120 and the damping member 300 more structurally stable and reliable.
Referring to fig. 5, in one embodiment, the damping element 300 is a rivet, the other end of the first clamping arm 110 is overlapped with the other end of the second clamping arm 120, that is, the rotating connection position of the first clamping arm 110 and the second clamping arm 120 is overlapped, and the overlapping position of the first clamping arm 110 and the second clamping arm 120 is provided with a through hole. The other end of the first clamping arm 110 is riveted with the other end of the second clamping arm 120 through a damping member 300, so that two opposite surfaces at the overlapping position of the first clamping arm 110 and the second clamping arm 120 are pressed against each other to generate a rotational damping force. The joint of the first clamping arm 110 and the second clamping arm 120 is matched in structure, which is beneficial to improving the stability of the first clamping arm 110 after being connected with the second clamping arm 120. The user can press the overlapped part of the first clamping arm 110 and the second clamping arm 120 by riveting to generate a rotation damping force, and can adjust the torque by controlling the depth of the rivet turnover to provide a stable and proper damping force.
Referring to fig. 1, in one embodiment, the first clamping member 210 and the second clamping member 220 are both arc-shaped. Because the auricle is attached to the atrium, when the auricle is clamped, the first clamping piece 210 and the second clamping piece 220 are arc-shaped structures and can better fit with the radian of the atrium, and the damage to atrial tissues is reduced.
In other embodiments, the first clamping member 210 and the second clamping member 220 may be linear. The straight line shape and the arc shape provided by the present application are only a part of the shapes of the first clamping member 210 and the second clamping member 220, and it can be understood that, in order to obtain better treatment effect, the proper deformation of the shapes of the first clamping member 210 and the second clamping member 220 can be obtained by the user according to actual needs.
Referring to fig. 6, in one embodiment, the first clamping member 210 includes a first inner tube 211 and a first outer tube 212 sleeved on the first inner tube 211, and the first inner tube 211 is connected to the first clamping arm 110.
The connection mode of the first inner tube 211 and the first clamping arm 110 includes, but is not limited to, threaded connection, welding, clamping, integral forming, and the like. As shown in fig. 6, the first inner tube 211 is fixed to the first clamping arm 110 by a fixing member 400 through a screw, and the fixing member 400 may be a screw connector such as a bolt.
Optionally, the material of the first inner tube 211 includes, but is not limited to, a metal material such as titanium alloy, stainless steel, aluminum alloy, pure titanium, and nitinol.
Alternatively, the first outer tube 212 may be an elastic tube, which includes but is not limited to polyurethane, silicone, polyvinyl chloride, polyethylene, polypropylene, etc. When the auricle is clamped and closed, the elastic first outer tube 212 can play a role in buffering, and damage to the auricle is reduced.
Similarly, the second clamping arm 120 may also include a second inner tube 221 and a second outer tube 222 sleeved on the second inner tube 221. The second inner tube 221 is connected to the second clamping arm 120, and the second outer tube 222 is an elastic tube. The connection between the second inner tube 221 and the second clamping arm 120 can refer to the connection between the first inner tube 211 and the first clamping arm 110, and the materials of the second inner tube 221 and the second outer tube 222 can refer to the materials of the first inner tube 211 and the first outer tube 212, which are not described herein again.
In one embodiment, the first and second clamping arms 110 and 120 are provided in two, and one first clamping arm 110 corresponds to one second clamping arm 120. A first clamping arm 110 is connected to one end of the first clamping member 210, and a second clamping arm 120 is connected to one end of the second clamping member 220; the other first clamp arm 110 is connected to the other end of the first clamp 210, and the other second clamp arm 120 is connected to the other end of the second clamp 220. Such a structure can make the first clamping member 210 and the second clamping member 220 more stable and the distribution of clamping force more uniform when clamping the auricle.
In one embodiment, the outer portion of the clip 10 may be integrally wrapped with a fibrous layer (not shown), which may be a relatively soft polyester fabric. The fiber layer can play a role in buffering and reduce damage to the auricle on one hand; on the other hand, the auricle clamp 10 has good biocompatibility, so that cell tissues can be favorably attached to the auricle clamp 10.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Where clearly defined and limited, the terms "fixed", "mounted", "connected", and the like are to be construed broadly and may include, for example, mechanical and electrical connections; can be fixedly connected, can also be detachably connected or integrated; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood that when an element is referred to as being "on," "disposed on" or "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "length", "width", "thickness", "axial", "radial", "circumferential", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
In the description herein, references to the description of "an embodiment," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.