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本发明属于医疗器械加工技术领域,具体涉及一种医疗可变径圆环连接方法及医疗可变径圆环。The invention belongs to the technical field of medical device processing, and in particular relates to a medical variable-diameter circular ring connection method and a medical variable-diameter circular ring.
背景技术Background technique
医疗领域可变径金属圆环广泛应用于瓣中瓣手术过程当中,针对可变径金属圆环的连接方式,现有技术多为通过铆钉连接或者焊接方式实现。In the medical field, variable-diameter metal rings are widely used in valve-in-valve surgery. For the connection method of variable-diameter metal rings, the prior art is mostly realized by rivet connection or welding.
如图1所示,一种医疗领域可变径金属圆环,其为环形封闭结构,且环体上设置有若干可变形部,如需实现变径功能,可通过金属圆环内内置球囊,通过球囊扩张使可变形部发生变形,达到最终扩径的目的。该种可变径金属圆环加工简单,通过焊接或铆接工艺将开口连接成环即可。As shown in Figure 1, a variable-diameter metal ring in the medical field is a ring-shaped closed structure, and the ring body is provided with several deformable parts. , the deformable part is deformed by expanding the balloon to achieve the purpose of final diameter expansion. The diameter-variable metal ring is easy to process, and the openings can be connected into a ring by welding or riveting.
但是,现有一种通过调节两个连接端层叠部分长度以实现变径的医疗领域可变径金属圆环,其尺寸极小,两层连接端层叠后的厚度在0.18mm左右。因其需要通过调节层叠长度实现圆环变径,无法采用激光直接将环体连接端焊接;若采用铆钉铆接工艺,并无标准件可直接选用,且该圆环尺寸极小,传统加工方案无法保证铆钉的尺寸精度及一致性,连接可靠性无法保证。However, there is an existing variable-diameter metal ring in the medical field that realizes diameter reduction by adjusting the length of the laminated parts of the two connecting ends. Because it is necessary to adjust the lamination length to realize the diameter reduction of the ring, it is impossible to directly weld the connecting end of the ring body by laser; if the rivet riveting process is used, there is no standard part that can be directly selected, and the size of the ring is extremely small, and the traditional processing scheme cannot The dimensional accuracy and consistency of the rivets are guaranteed, but the connection reliability cannot be guaranteed.
发明内容Contents of the invention
本发明的目的是提供一种医疗可变径圆环连接方法及医疗可变径圆环。The object of the present invention is to provide a medical variable-diameter circular ring connection method and a medical variable-diameter circular ring.
为了解决上述技术问题,本发明提供了一种医疗可变径圆环连接方法,包括:对丝材抛光;对丝材一端进行激光熔球形成扩大部;对丝材进行激光切割,以形成一端熔球另一端为熔球的固定杆;将固定杆未熔球的一端依次穿过分别位于环体两个连接端上的第一孔和第二孔,其中第一孔、第二孔中至少一个为沿环体周向延伸的条形孔;对固定杆未熔球的一端进行熔球形成扩大部,以将环体两个连接端连接。In order to solve the above technical problems, the present invention provides a medical variable-diameter ring connection method, including: polishing the wire; performing laser melting on one end of the wire to form an enlarged part; laser cutting the wire to form one end The other end of the melting ball is a fixing rod of the melting ball; the unmelted ball of the fixing rod passes through the first hole and the second hole respectively located at the two connection ends of the ring body in turn, wherein at least one of the first hole and the second hole One is a strip-shaped hole extending along the circumferential direction of the ring body; the unmelted ball is melted at one end of the fixing rod to form an enlarged part to connect the two connection ends of the ring body.
进一步的,所述环体的厚度为0.06~0.12mm。Further, the thickness of the ring body is 0.06-0.12mm.
进一步的,所述丝材为直径在0.4~0.6mm的镍钛丝材。Further, the wire is a nickel-titanium wire with a diameter of 0.4-0.6 mm.
进一步的,所述对丝材抛光采用电解抛光。Further, electrolytic polishing is used for the polishing of the wire material.
又一方面,本发明还提供了一种医疗可变径圆环,包括:重叠的第一连接端和第二连接端,所述第一连接端上设置有第一孔,所述第二连接端上设置有第二孔,且第一孔、第二孔中至少一个为沿环体周向延伸的条形孔;固定杆,其杆身依次穿过第一孔和第二孔,且固定杆的两端分别设置有扩大部,相应扩大部的直径分别大于第一孔、第二孔的孔径,以将第一连接端和第二连接端连接;其中所述固定杆的两端扩大部通过激光熔球成型。In yet another aspect, the present invention also provides a medical variable-diameter ring, comprising: a first connecting end and a second connecting end that overlap, the first connecting end is provided with a first hole, and the second connecting end The end is provided with a second hole, and at least one of the first hole and the second hole is a strip-shaped hole extending along the circumferential direction of the ring body; The two ends of the rod are respectively provided with enlarged parts, and the diameters of the corresponding enlarged parts are respectively larger than the diameters of the first hole and the second hole, so as to connect the first connection end and the second connection end; wherein the enlarged parts at both ends of the fixed rod Molded by laser melting ball.
进一步的,所述第一连接端上也设置有第二孔,所述第二连接端上也设置有第一孔,且该两孔之间穿设有另一固定杆连接。Further, the first connection end is also provided with a second hole, the second connection end is also provided with a first hole, and another fixing rod is connected between the two holes.
进一步的,所述第一孔为圆形孔,所述第二孔为条形孔;以及所述圆形孔位于条形孔的外侧。Further, the first hole is a circular hole, the second hole is a strip-shaped hole; and the circular hole is located outside the strip-shaped hole.
进一步的,所述医疗可变径圆环的环体展开后的长度为55~65mm。Further, the expanded length of the ring body of the medical adjustable diameter ring is 55-65 mm.
进一步的,所述医疗可变径圆环的环体厚度为0.06~0.12mm。Further, the thickness of the ring body of the medical adjustable diameter ring is 0.06-0.12mm.
本发明的有益效果是,本发明的医疗可变径圆环连接方法通过采用激光熔球工艺代替传统铆钉连接或者焊接工艺,可满足极小尺寸的环体连接,解决了采用铆接工艺时无标准件可直接选用,且该圆环尺寸极小,传统工方案无法保证铆钉的尺寸精度及一致性,连接可靠性无法保证的问题。The beneficial effect of the present invention is that the medical variable-diameter circular ring connection method of the present invention replaces the traditional rivet connection or welding process with the laser melting ball process, which can meet the ring body connection of an extremely small size, and solves the problem that there is no standard when using the riveting process. The parts can be directly selected, and the size of the ring is extremely small. The traditional engineering scheme cannot guarantee the dimensional accuracy and consistency of the rivet, and the connection reliability cannot be guaranteed.
本发明的其他特征和优点将在随后的说明书中阐述,并且,部分地从说明书中变得显而易见,或者通过实施本发明而了解。本发明的目的和其他优点在说明书以及附图中所特别指出的结构来实现和获得。Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and appended drawings.
为使本发明的上述目的、特征和优点能更明显易懂,下文特举较佳实施例,并配合所附附图,作详细说明如下。In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.
附图说明Description of drawings
为了更清楚地说明本发明具体实施方式或现有技术中的技术方案,下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施方式,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.
图1是现有技术中一种医疗领域可变径金属圆环的示意图;Fig. 1 is a schematic diagram of a variable-diameter metal ring in the medical field in the prior art;
图2是本发明的医疗可变径圆环的优选实施例的连接示意图;Fig. 2 is the connection schematic diagram of the preferred embodiment of the medical variable diameter ring of the present invention;
图3是本发明的医疗可变径圆环的优选实施例的环体展开后的示意图;Fig. 3 is the schematic diagram after the ring body of the preferred embodiment of the medical adjustable diameter ring of the present invention is expanded;
图4是本发明的医疗可变径圆环的优选实施例的激光熔球示意图;Fig. 4 is the schematic diagram of the laser melting ball of the preferred embodiment of the medical variable diameter ring of the present invention;
图5是本发明的优选实施例的一端熔球后的固定杆的示意图;Fig. 5 is a schematic diagram of a fixed rod behind a melting ball at one end of a preferred embodiment of the present invention;
图6是本发明的医疗可变径圆环连接方法的优选实施例的流程图;Fig. 6 is the flowchart of the preferred embodiment of the medical variable-diameter circular ring connection method of the present invention;
图7是本发明的优选实施例中激光熔球后拉力测试结果示意图。Fig. 7 is a schematic diagram of the tensile test results after melting the ball by laser in the preferred embodiment of the present invention.
图中:In the picture:
第一连接端1、第二连接端2、第一孔31、第二孔32、固定杆4、扩大部41。The first connection end 1 , the second connection end 2 , the
具体实施方式Detailed ways
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合附图对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
如图2、图3和图4所示,本发明涉及一种医疗可变径圆环,环体展开时如图3所示,其两端为连接端,设置有用于供固定杆穿过的若干孔,其中具有条形孔,可以在环体变径时供固定杆在条形孔中移动。两层连接端层叠后厚度在0.18mm左右。因其需要通过调节两个连接端层叠部分的长度以实现圆环变径,无法采用激光直接将环体连接端焊接;采用铆钉铆接工艺,并无标准件可直接选用,且该圆环尺寸极小,传统加工方案无法保证铆钉的尺寸精度及一致性,连接可靠性无法保证。As shown in Fig. 2, Fig. 3 and Fig. 4, the present invention relates to a medical variable-diameter ring. A plurality of holes have bar-shaped holes, which can be used for the fixed rod to move in the bar-shaped holes when the diameter of the ring body is reduced. The thickness of the two-layer connection ends is about 0.18mm after lamination. Because it is necessary to adjust the length of the stacked part of the two connecting ends to realize the diameter reduction of the ring, it is impossible to directly weld the connecting ends of the ring with a laser; the rivet riveting process is used, and there is no standard part that can be directly selected, and the size of the ring is extremely large. Small, the traditional processing scheme cannot guarantee the dimensional accuracy and consistency of the rivet, and the connection reliability cannot be guaranteed.
实施例1Example 1
如图6所示,为了解决上述问题,本实施例提供了一种医疗可变径圆环连接方法,包括:对丝材抛光;对丝材一端进行激光熔球形成扩大部;对丝材进行激光切割,以形成一端熔球另一端为熔球的固定杆;将固定杆未熔球的一端依次穿过分别位于环体两个连接端上的第一孔和第二孔,其中第一孔、第二孔中至少一个为沿环体周向延伸的条形孔;对固定杆未熔球的一端进行熔球形成扩大部,以将环体两个连接端连接。As shown in Figure 6, in order to solve the above problems, this embodiment provides a medical variable-diameter ring connection method, including: polishing the wire; performing laser melting on one end of the wire to form an enlarged part; Laser cutting to form a fixed rod with a molten ball at one end and a molten ball at the other end; the unmelted ball at one end of the fixed rod passes through the first hole and the second hole respectively located at the two connecting ends of the ring body, wherein the
在本实施例中,可选的,所述环体的厚度为0.06~0.12mm,可以是0.06mm,0.07mm,0.08mm,0.09mm,0.10mm,0.11mm,0.12mm。In this embodiment, optionally, the ring body has a thickness of 0.06-0.12mm, which may be 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.10mm, 0.11mm, or 0.12mm.
在本实施例中,可选的,所述丝材可以为直径在0.4~0.6mm的镍钛丝材;可以是0.4mm,0.5mm,0.6mm;当然,也可以根据第一孔、第二孔的大小选用合适尺寸的丝材。In this embodiment, optionally, the wire can be a nickel-titanium wire with a diameter of 0.4-0.6mm; it can be 0.4mm, 0.5mm, 0.6mm; The size of the hole is selected from the appropriate size of the wire.
在本实施例中,可选的,所述对丝材抛光采用电解抛光。In this embodiment, optionally, electrolytic polishing is used for polishing the wire.
在本实施例中,丝材抛光后直径尺寸偏差可控制在±0.01mm,熔球后熔球直径偏差可控制在±0.05mm,完全满足产品尺寸要求,相较于传统机加铆钉方案可明显提高加工的一致性及加工精度。In this embodiment, the diameter deviation of the wire material after polishing can be controlled within ±0.01mm, and the diameter deviation of the molten ball after melting can be controlled within ±0.05mm, which fully meets the product size requirements. Improve the consistency and precision of processing.
在一种具体应用场景中,可以采用如下步骤进行实施:In a specific application scenario, the following steps can be adopted for implementation:
选取一种医疗领域可变径金属圆环,选取对应丝径为0.5mm的镍钛丝材备用;Select a variable-diameter metal ring in the medical field, and select a nickel-titanium wire with a corresponding wire diameter of 0.5mm for use;
通过抛光机采用电解抛光方式,抛光参数可以为:抛光电压10V、电流0.2A、占空比4:6、抛光时间3min,电解液体系为高氯酸+草酸、将镍钛丝材表面做亮化处理,备用;The electrolytic polishing method is adopted by the polishing machine. The polishing parameters can be: polishing voltage 10V, current 0.2A, duty ratio 4:6, polishing time 3min, the electrolyte system is perchloric acid + oxalic acid, and the surface of the nickel-titanium wire is brightened. chemical treatment, standby;
将抛光后镍钛丝材一端激光熔球形成扩大部,具体的熔球尺寸根据产品孔径的实际尺寸通过调节激光熔球工艺实现;The laser melting ball at one end of the polished nickel-titanium wire forms an enlarged part, and the specific size of the melting ball is realized by adjusting the laser melting ball process according to the actual size of the product aperture;
待连接金属圆环产品两层连接端层叠后的尺寸为0.18mm,通过激光切割设备,将一端激光熔球后的镍钛丝材切割为固定杆,如图5所示,长度可以为0.3mm,备用;The size of the two-layer connection end of the metal ring product to be connected is 0.18mm. Through laser cutting equipment, the nickel-titanium wire after one end of the laser melting ball is cut into a fixing rod, as shown in Figure 5, and the length can be 0.3mm. ,spare;
将一端激光熔球后镍钛丝材另一端穿过产品连接端的相应孔,另一端同样进行激光熔球处理,具体的熔球尺寸根据产品实际尺寸通过调节激光熔球工艺实现,如图4所示;Pass one end of the nickel-titanium wire through the corresponding hole at the connecting end of the product after laser melting, and the other end is also treated with laser melting. The specific size of the melting ball is realized by adjusting the laser melting process according to the actual size of the product, as shown in Figure 4. Show;
通过万能实验机对环体连接强度进行测试,测试结果参见图7所示。The connection strength of the ring body was tested by a universal testing machine, and the test results are shown in Figure 7.
在本实施例中,对于医疗可变径圆环,激光焊接直接连接方法无法实现变径要求,铆钉连接工艺由于铆钉尺寸的限制,或可行性较低或成本较高,激光熔球工艺代替传统铆钉连接或者焊接工艺,可有效避免铆接和焊接方法带来的弊端,此方法可行性较高,另鉴于激光切割(切割精度0.01mm)、电解抛光(尺寸控制精度0.01mm)、激光熔球(熔球直径尺寸精度0.05)等设备的加工精度,熔球后的成品尺寸精度可完全满足使用要求,保证了连接方式的一致性;采用激光熔球连接工艺后产品的连接强度(约100N)远大于客户要求(30N),保证了连接方式的可靠性;鉴于铆钉尺寸的限制,传统机加工艺无法满足精度和尺寸一致性需求,激光熔球工艺可在满足功能性的同时降低生产成本,提升可靠性。In this embodiment, for medical variable-diameter rings, the direct connection method of laser welding cannot meet the requirements for diameter reduction. Due to the limitation of rivet size, the rivet connection process is either less feasible or more costly. The laser melting ball process replaces the traditional Rivet connection or welding process can effectively avoid the disadvantages caused by riveting and welding methods. This method is more feasible. In addition, in view of laser cutting (cutting accuracy 0.01mm), electrolytic polishing (size control accuracy 0.01mm), laser melting ball ( The processing accuracy of the equipment such as the diameter and size accuracy of the melting ball is 0.05), and the dimensional accuracy of the finished product after melting the ball can fully meet the requirements of use, ensuring the consistency of the connection method; the connection strength of the product after the laser melting ball connection process (about 100N) is huge According to customer requirements (30N), the reliability of the connection method is guaranteed; in view of the limitation of rivet size, the traditional machining process cannot meet the requirements of accuracy and dimensional consistency, and the laser melting ball process can reduce production costs and improve reliability.
实施例2Example 2
如图2所示,在实施例1的基础上,本实施例提供了一种医疗可变径圆环,包括:重叠的第一连接端1和第二连接端2,所述第一连接端1上设置有第一孔31,所述第二连接端2上设置有第二孔32,且第一孔31、第二孔32中至少一个为沿环体周向延伸的条形孔;固定杆4,其杆身依次穿过第一孔31和第二孔32,且固定杆4的两端分别设置有扩大部41,相应扩大部41的直径分别大于第一孔31、第二孔32的孔径,以将第一连接端1和第二连接端2连接;其中所述固定杆4的两端扩大部41通过激光熔球成型。As shown in Figure 2, on the basis of
在本实施例中,为了移动时的稳定性,可选的,所述第一连接端1上也设置有第二孔32,所述第二连接端2上也设置有第一孔31,且该两孔之间穿设有另一固定杆4连接。In this embodiment, for stability when moving, optionally, the
在本实施例中,可选的,所述第一孔31为圆形孔,所述第二孔32为条形孔;以及所述圆形孔位于条形孔的外侧。In this embodiment, optionally, the
参见图2所示,第一连接端1上设置有第一孔31、第二孔32,第一孔31为圆孔,设置在端部的外侧,第二孔32为条形孔,设置在端部的内侧;第二连接端2上设置有第一孔31、第二孔32,第一孔31为圆孔,设置在端部的外侧,第二孔32为条形孔,设置在端部的内侧;即,一连接端上的第一孔31对应另一连接端上的第二孔32,一固定杆4固定在第一孔31中,但可以在第二孔32中移动,第一连接端1和第二连接端2可以发生周向移动,即环体直径可以扩大。Referring to shown in Figure 2, the
在本实施例中,可选的,所述医疗可变径圆环的环体展开后的长度为55~65mm。In this embodiment, optionally, the length of the ring body of the medical variable-diameter ring after expansion is 55-65 mm.
在本实施例中,可选的,所述医疗可变径圆环的环体厚度为0.06~0.12mm。In this embodiment, optionally, the thickness of the ring body of the medical variable-diameter ring is 0.06-0.12 mm.
综上所述,本发明的医疗可变径圆环连接方法通过采用激光熔球工艺代替传统铆钉连接或者焊接工艺,可有效避免铆接和焊接方法带来的弊端,此方法可行性较高,另鉴于激光切割(切割精度0.01mm)、电解抛光(尺寸控制精度0.01mm)、激光熔球(熔球直径尺寸精度0.05)等设备的加工精度,熔球后的成品尺寸精度可完全满足使用要求,保证了连接方式的一致性;采用激光熔球连接工艺后产品的连接强度(约100N)远大于客户要求(30N),保证了连接方式的可靠性;鉴于铆钉尺寸的限制,传统机加工艺无法满足精度和尺寸一致性需求,激光熔球工艺可在满足功能性的同时降低生产成本,提升可靠性。In summary, the medical variable-diameter circular ring connection method of the present invention can effectively avoid the disadvantages caused by riveting and welding methods by using laser melting ball technology instead of traditional rivet connection or welding technology. This method has high feasibility. In view of the processing accuracy of equipment such as laser cutting (cutting accuracy 0.01mm), electrolytic polishing (size control accuracy 0.01mm), laser melting ball (melting ball diameter and dimension accuracy 0.05), the dimensional accuracy of the finished product after melting the ball can fully meet the use requirements, The consistency of the connection method is guaranteed; the connection strength (about 100N) of the product after the laser melting ball connection process is much greater than the customer's requirement (30N), which ensures the reliability of the connection method; in view of the limitation of the size of the rivet, the traditional machining process cannot To meet the requirements of precision and dimensional consistency, the laser melting ball process can reduce production costs and improve reliability while meeting functionality.
本申请中选用的各个器件(未说明具体结构的部件)均为通用标准件或本领域技术人员知晓的部件,其结构和原理都为本技术人员均可通过技术手册得知或通过常规实验方法获知。Each device selected in this application (not specifying the parts of specific structure) is a general standard part or a part known to those skilled in the art, and its structure and principle are all known to those skilled in the art through technical manuals or through conventional experimental methods informed.
在本发明实施例的描述中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接。In the description of the embodiments of the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or connected integrally.
在本发明的描述中,需要说明的是,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.
以上述依据本发明的理想实施例为启示,通过上述的说明内容,相关工作人员完全可以在不偏离本项发明技术思想的范围内,进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310094731.6ACN116021238A (en) | 2023-02-09 | 2023-02-09 | Medical variable-diameter ring connecting method and medical variable-diameter ring |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310094731.6ACN116021238A (en) | 2023-02-09 | 2023-02-09 | Medical variable-diameter ring connecting method and medical variable-diameter ring |
| Publication Number | Publication Date |
|---|---|
| CN116021238Atrue CN116021238A (en) | 2023-04-28 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310094731.6APendingCN116021238A (en) | 2023-02-09 | 2023-02-09 | Medical variable-diameter ring connecting method and medical variable-diameter ring |
| Country | Link |
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| CN (1) | CN116021238A (en) |
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| CN104690424A (en)* | 2013-12-05 | 2015-06-10 | 大族激光科技产业集团股份有限公司 | Laser welding device and method for melting ball on filament end face |
| CN108135699A (en)* | 2015-09-10 | 2018-06-08 | 爱德华兹生命科学公司 | Constrained expandable heart valve |
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| TA01 | Transfer of patent application right | Effective date of registration:20231101 Address after:Building A1, No. 9-2, Changyang Road, West the Taihu Lake Science and Technology Industrial Park, Changzhou City, Jiangsu Province, 213000 Applicant after:Paisheng Technology (Changzhou) Co.,Ltd. Address before:3 / F, yingnuo laser building, Changzhou science and Education City, no.18-69, middle Changwu Road, Wujin District, Changzhou City, Jiangsu Province, 213000 Applicant before:CHANGZHOU INNO MACHINING Co.,Ltd. |