Method for manufacturing a connection device

Abstract

The application discloses a manufacturing method of a connecting device, which comprises the following steps of blanking, cutting on a raw material to form a plurality of first connecting pieces with first fixing parts and second connecting pieces with second fixing parts; assembling, putting end parts of implants between the first connecting pieces and the second connecting pieces, and then pressing the first connecting pieces and the second connecting pieces after alignment so that the end parts of the implants are clamped between the first fixing parts and the second fixing parts; and welding, welding the end parts of the first connecting pieces with the end parts of the second connecting pieces so that the end parts of the implants are fixedly connected between the first fixing parts and the second fixing parts. In this way, the second connecting pieces are connected with the first connecting pieces in cooperation, the end parts of the implants are fixed, welding of the end parts of the implants and welding of the implants on the connecting device are not needed, and the influence on the material of the implants is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a manufacturing method of a connecting device. BACKGROUND

[0002] In the field of medical devices, the clinical implantation of implants into the human body through percutaneous catheter minimally invasive surgery is mostly to load the implant on a push rod, and then transport it to the predetermined target position through the established catheter cavity for release.

[0003] In the prior art, a matching connecting device is generally required to load the implant on the push rod. The process of equipping the connecting device on the implant is complex, which requires first bundling the implant into an end portion and accommodating it in a fixed part for welding fixation, and then welding the welded and fixed implant with other connecting devices. The forced bundling of the multi-strand three-dimensional complex structure of the implant is easy to cause misplacement and superposition deformation of the structure, and the high temperature generated by welding is easy to cause denaturation of the welding material, affecting the stability of the material. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a manufacturing method of a connecting device, which fixes the end portion of the implant by cooperating the first connecting piece and the second connecting piece, and then welds the first connecting piece and the second connecting piece together, avoiding direct welding of the end portion of the implant while fixing the implant.

[0005] A manufacturing method of a connecting device according to an embodiment of the present application, comprising:

[0006] blanking, cutting on the raw material to form a plurality of first connecting pieces with first fixing parts and second connecting pieces with second fixing parts;

[0007] assembly, placing the end portion of the implant between the first connecting piece and the second connecting piece, and then aligning and pressing the first connecting piece and the second connecting piece to make the end portion of the implant clamped between the first fixing part and the second fixing part;

[0008] welding, welding the end portion of the first connecting piece with the end portion of the second connecting piece to fix the end portion of the implant between the first fixing part and the second fixing part.

[0009] The manufacturing method of the connecting device according to the embodiments of the present application has at least the following beneficial effects: the first fixing part is arranged on the first connecting piece, the second fixing part is arranged on the second connecting piece, and the second connecting piece is connected with the first connecting piece in a matching mode, so that the second fixing part and the first fixing part are matched to fix the end of the implant, and welding of the end of the implant and welding of the implant on the connecting device are not needed, thereby avoiding influence on the material of the implant.

[0010] According to some embodiments of the present application, in the blanking step, the pipe material is cut in a staggered pattern by laser cutting

[0011] According to some embodiments of the present application, in the blanking step, the second connecting piece is further provided with a connecting part, and the connecting part is used to connect a pushing device.

[0012] According to some embodiments of the present application, in the assembling step, the first fixing part is arranged as a first tooth slot or a flat surface, and the second fixing part is arranged as a second tooth rod.

[0013] According to some embodiments of the present application, in the assembling step, the first fixing part is arranged as a first tooth rod, and the second fixing part is arranged as a second tooth slot.

[0014] According to some embodiments of the present application, the first fixing part is arranged as a plurality of concave pits, and the second fixing part is arranged as a plurality of convex parts matched with the concave pits.

[0015] According to some embodiments of the present application, the connecting part is arranged as an internal thread structure on the second connecting piece or an external thread structure on the second connecting piece.

[0016] According to some embodiments of the present application, a third connecting piece is further included, in the welding step, the first connecting piece and the second connecting piece and the second connecting piece and the third connecting piece are connected in a contact mode, one end of the third connecting piece is welded with the first connecting piece, and the third connecting piece is used to connect a pushing device.

[0017] According to some embodiments of the present application, a third connecting piece is further included, and the first connecting piece is threadedly connected with the third connecting piece.

[0018] According to some embodiments of the present application, the second connecting piece is arranged between the first connecting piece and the third connecting piece, and the second connecting piece is provided with a retreat-preventing part for preventing loosening of threads.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, wherein:

[0021] Figure 1 Structure diagram (exploded view) of a first connecting device according to an embodiment of the present application;

[0022] Figure 2 Sectional view of the first connecting device according to an embodiment of the present application (with implant);

[0023] Figure 3 Structure diagram of a second connecting device according to an embodiment of the present application;

[0024] Figure 4 Structure diagram of a third connecting device according to an embodiment of the present application;

[0025] Figure 5 Structure diagram of a fourth connecting device according to an embodiment of the present application;

[0026] Figure 6 Structure diagram of a fifth connecting device according to an embodiment of the present application;

[0027] Figure 7 Sectional view of the fifth connecting device according to an embodiment of the present application;

[0028] Figure 8 Structure diagram (exploded view) of a sixth connecting device according to an embodiment of the present application;

[0029] Figure 9 Structure diagram (exploded view) of a seventh connecting device according to an embodiment of the present application;

[0030] Figure 10 Diagram of a cutting raw material according to an embodiment of the present application.

[0031] First connecting member 100, first tooth gap 110, first tooth 120, flat surface 130, recess 140;

[0032] Second connecting member 200, second tooth 210, second tooth gap 220, protrusion 230;

[0033] Third connecting member 300;

[0034] Implant 400. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are intended only for the purpose of explaining the present application, and should not be understood as limiting the present application.

[0036] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0037] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is several or more, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0038] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] Referring to Figures 1 to 10 , a manufacturing method of a connecting device according to an embodiment of the present application includes the following steps:

[0040] Cutting, cutting on the raw material to form a plurality of first connecting pieces 100 having a first fixing part and a plurality of second connecting pieces 200 having a second fixing part;

[0041] Assembling, placing the end of the implant 400 between the first connecting piece 100 and the second connecting piece 200, and then aligning and pressing the first connecting piece 100 and the second connecting piece 200, so that the end of the implant 400 is clamped between the first fixing part and the second fixing part;

[0042] Welding, welding the end of the first connecting piece 100 with the end of the second connecting piece 200, so that the end of the implant 400 is fixedly connected between the first fixing part and the second fixing part.

[0043] In the above steps, the first fixing part can be a first tooth gap 110 as shown in Figure 1 , or a first tooth 120 as shown in Figure 3 , or a first tooth 120 as shown in Figure 7The curved tooth shown, Figure 8 The plane 130 shown can also be Figure 9 The recess 140 shown, the second fixing part cooperates with the first fixing part to fix the implant 400, corresponding to the first fixing part described above, such as Figure 1 And Figure 2 As shown, the second fixing part is provided as the second tooth 210, and the implant 400 is occluded in the first tooth slot 110 through the second tooth 210; as Figure 3 As shown, the second fixing part is provided as the second tooth slot 220, and the implant 400 is occluded in the second tooth slot 220 through the first tooth 120; as Figure 7 As shown, the second fixing part is provided as a stepped surface on the peripheral wall of the second connecting piece 200, and the implant 400 is fixed by pressing the end of the curved tooth against the stepped surface; as Figure 8 And Figure 9 As shown, the second fixing part is provided as a convex part 230, and the implant is pressed against the plane 130 or the recess 140 through the convex part 230, so as to fix the end of the implant 400.

[0044] It should be noted that the first tooth slot 110 and the second tooth slot 220 described above can be understood as the gap formed between every two first teeth 120 or the second tooth 210 as shown, and the welding of the end of the first connecting piece 100 and the end of the second connecting piece 200 refers to the welding connection of the end of the tooth of the first connecting piece 100 and the contact position of the end surface of the second connecting piece 200. Figure 1 And Figure 3 As shown, the welding of the end of the first connecting piece 100 and the end of the second connecting piece 200 refers to the welding connection of the end of the tooth of the first connecting piece 100 and the contact position of the end surface of the second connecting piece 200.

[0045] According to the manufacturing method of the connecting device of the embodiment of the present application, at least the following beneficial effects are obtained: the first fixing part is arranged on the first connecting piece 100, the second fixing part is arranged on the second connecting piece 200, and the second connecting piece 200 is connected with the first connecting piece 100, so that the second fixing part cooperates with the first fixing part to fix the end of the implant 400, without the need for welding the end of the implant 400 and welding the implant 400 on the connecting device, thereby avoiding the influence on the material of the implant.

[0046] According to some embodiments of the present application, in the blanking step, the cutting of the pipe material is performed in a staggered line laser cutting mode. The laser cutting can improve the cutting precision and ensure the quality after cutting. In addition, the staggered line cutting mode as shown in Figure 10 can improve the effective utilization rate of the material and save production cost.

[0047] According to some embodiments of the present application, in the blanking step, the second connecting piece 200 is provided with a connecting part for connecting a pushing device, and Figures 1 to 7In the figure, the third connecting member 300 is used to represent it, that is, it can be understood that the third connecting member 300 and the second connecting member 200 are integrally formed, and the third connecting member 300 is the connecting portion of the second connecting member 200. At this time, the second connecting member 200 plays the role of fixing the implant 400 and also plays the role of connecting the pushing device. At this time, the third connecting member 300 can be set as follows Figure 1 、 Figure 4 or Figure 6 The internal thread structure shown can also be set as Figure 3 The external thread structure shown can also be set as Figure 5 The buckle structure shown, the corresponding connection part of the pushing device is set to an external thread structure, an internal thread structure or a buckle structure. When set to the above structure, the connecting device can be easily installed into the pushing device, and it is also easy to release the connecting device after being pushed into place by the pushing device.

[0048] According to some embodiments of the present invention, a third connecting member 300 is further included, such as Figure 8 and Figure 9 As shown, the second connector 200 and the third connector 300 are two parts. In the welding step, the first connector 100, the second connector 200 and the third connector 300 are connected in sequence, all of which are contact connections. The first connector 100 and the third connector 300 are welded, and the welding method is as described above. The implant 400 is fixed between the first connector 100 and the second connector 200, and is fixed by the above-mentioned bite method, which will not have a direct impact on the material and shape of the implant 400. At the same time, the fixing method of teeth and tooth gaps, protrusions and pits can effectively prevent the implant 400 from falling off.

[0049] In the above embodiment, the first connecting member 100 and the third connecting member 300 can also be connected by a threaded connection to facilitate replacement. If a threaded connection is adopted, the thread option should be opposite to the direction of rotation of the thread used to connect the pushing device, so as not to affect the release of the implant 400 by the pushing device, thereby avoiding the disintegration of the connecting device when it releases the implant 400.

[0050] In the above embodiment, referring to Figure 8 and Figure 9 The second connecting member 200 is arranged between the first connecting member 100 and the third connecting member 300. The second connecting member 200 is provided with a stop portion for increasing friction and preventing thread reversal, which is used to prevent the threads between the first connecting member 100 and the third connecting member 300 from loosening, resulting in disintegration of the connecting device.

[0051] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A method for manufacturing a connecting device, characterized in that: include: Cutting the raw material to form a plurality of first connecting pieces having a first fixing portion and a second connecting piece having a second fixing portion; Assembling, placing the end portion of the implant between the first connecting member and the second connecting member, and then aligning the first connecting member and the second connecting member and pressing them together so that the end portion of the implant is engaged between the first fixing portion and the second fixing portion; Welding: welding the end of the first connecting member to the end of the second connecting member so that the end of the implant is fixedly connected between the first fixing portion and the second fixing portion; It also includes a third connecting member. In the welding step, the first connecting member, the second connecting member and the third connecting member are connected in sequence. The first connecting member and the second connecting member, as well as the second connecting member and the third connecting member, are all contact-connected. One end of the third connecting member is welded to the first connecting member. The third connecting member is used to connect the pushing device.

2. The method for manufacturing a connecting device according to claim 1, wherein: In the blanking step, the tube is cut by laser cutting with staggered patterns.

3. The method for manufacturing a connecting device according to claim 2, wherein: In the blanking step, the second connecting member is further provided with a connecting portion, and the connecting portion is used to connect to the pushing device.

4. The method for manufacturing a connection device according to claim 3, wherein: In the assembling step, the first fixing portion is configured as a first tooth gap or a plane, and the second fixing portion is configured as a second gear rod.

5. The method for manufacturing a connection device according to claim 3, wherein: In the assembling step, the first fixing portion is configured as a first gear rod, and the second fixing portion is configured as a second gear gap.

6. The method for manufacturing a connection device according to claim 3, wherein: The first fixing portion is configured as a plurality of recesses, and the second fixing portion is configured as a plurality of protrusions matching the recesses.

7. The method for manufacturing a connection device according to any one of claims 3 to 6, characterized in that: The connecting portion is configured as an internal thread structure on the second connecting member or an external thread structure on the second connecting member.

8. The method for manufacturing a connection device according to claim 1, wherein: A third connecting member is also included, and the first connecting member is threadedly connected to the third connecting member.

9. The method for manufacturing a connection device according to claim 8, characterized in that: The second connecting member is disposed between the first connecting member and the third connecting member, and is used to prevent the first connecting member and the third connecting member from becoming loose.

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