Adhesive- and solvent-free medical transmission cable for laser beam welding

Abstract

Adhesive- and solvent-free medical transmission cable for laser beam welding, characterized in that it comprises the following: a connector, wherein the connector comprises a connector body and a connector connecting section which are firmly connected to each other, wherein the connector connecting section is provided with a snap groove on an outer wall facing one end of the connector body; a transmission pipe, wherein the transmission pipe comprises a transmission pipe body and a transmission pipe connection section, wherein the transmission pipe connection section is provided with a snap element on an inner wall facing away from one end of the transmission pipe body; wherein the transmission pipe connection section is attached to an outside of the connector connection section, wherein the snap element is connected to the snap groove in a snap connection, wherein the inner wall of the transmission pipe connection section is in close contact with the outer wall of the connector connection section and is laser welded for a tight fit.

Description

TECHNICAL AREA

[0001] The present utility model relates to the technical field of medical devices, in particular an adhesive- and solvent-free medical transmission cable for laser beam welding. STATE OF THE ART

[0002] The connector assemblies of the transmission tube are used in conjunction with medical devices. Existing assembly methods for medical transmission tubes and connectors typically use adhesives (e.g., UV adhesives, fast-drying adhesives, etc.) for bonding. However, the adhesive curing process used has the problem of VOCs evaporating after assembly, posing a safety risk. Furthermore, the adhesive curing process requires a certain amount of time for drying and hardening, which is not conducive to rapid product production. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The purpose of the present utility model is to provide an adhesive- and solvent-free medical transmission line for laser beam welding in order to solve the technical problems of long air drying time and volatilization of VOC substances caused by the use of adhesive curing in the medical transmission tube and the connections in the prior art.

[0004] To achieve the above purpose, the present utility model uses the following technical solution: The present utility model provides an adhesive- and solvent-free medical transmission cable for laser beam welding, comprising the following: a connector, wherein the connector comprises a connector body and a connector connecting section which are firmly connected to each other, wherein the connector connecting section is provided with a snap groove on an outer wall facing one end of the connector body; a transmission pipe, wherein the transmission pipe comprises a transmission pipe body and a transmission pipe connection section, wherein the transmission pipe connection section is provided with a snap element on an inner wall of the transmission pipe connection section facing away from one end of the transmission pipe body; wherein the transmission pipe connection section is attached to an outside of the connector connection section, wherein the snap element is connected to the snap groove in a snap connection, wherein the inner wall of the transmission pipe connection section is in close contact with the outer wall of the connector connection section and is laser welded for a tight fit.

[0005] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the snap groove is a recessed groove that is provided in an annular shape on the outer wall of the connector-connecting section; wherein the snap element is an annular projection formed by bending the transmission pipe connecting section inwards, forming a corresponding notch on the outer wall of the transmission pipe connecting section, and wherein the annular projection has a wedge-shaped cut.

[0006] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, an end of the transmission tube connection section facing away from one end of the transmission tube body and the snap element are provided within the snap groove.

[0007] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the connector-connecting section is provided with a guide section at an end facing away from the connector body.

[0008] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the connector body is provided with a variety of anti-slip strips on the outer wall.

[0009] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the transmission tube connection section is a transparent or semi-transparent plastic element.

[0010] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the connector-connecting section is a transparent or non-transparent plastic element.

[0011] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the wall thickness of the transmission tube connection section is not greater than 4 mm.

[0012] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, the wavelength of the laser light source for laser welding is 800 nm to 1000 nm.

[0013] According to the above adhesive- and solvent-free medical transmission line for laser beam welding, a laser light source with a wavelength of 808 nm is used for laser welding, or a laser light source with a wavelength of 980 nm is used for laser welding.

[0014] An adhesive- and solvent-free medical transmission cable for laser beam welding, provided in the present utility model, has the following advantageous effects: In the adhesive- and solvent-free medical transmission cable for laser beam welding of the present utility model, a snap element and A snap-fit ​​connection is created, and laser welding replaces the conventional curing process with adhesive, thus avoiding the volatilization of VOCs from adhesives and improving safety in the use of medical devices. Furthermore, this utility model utilizes laser welding without an air-drying curing time, reducing product production time, thereby improving production capacity, reducing manual operation, and achieving automated production. This utility model employs the laser welding process, which ensures a strong and aesthetically pleasing weld seam and offers the advantages of sealing, preventing air and water leaks, etc. It also strengthens the bond between the two components. It meets the requirements for sealing and tensile strength of the transmission pipe and the connecting piece. BRIEF DESCRIPTION OF THE DRAWING

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings, which are to be used in the embodiments of this utility model or in the prior art, are briefly described below. Of course, the accompanying drawings described below are some of the embodiments of this utility model, and other accompanying drawings can be derived from the accompanying drawings by a person with normal technical knowledge without any creative work. Fig. Figure 1 shows a schematic representation of the three-dimensional structure of an adhesive- and solvent-free medical transmission line for laser beam welding of the present utility model; Fig. Figure 2 shows a schematic representation of the exploded substructure of the adhesive- and solvent-free medical transmission line for laser beam welding of the present utility model; Fig. Figure 3 shows a schematic representation of the cut section structure of the adhesive- and solvent-free medical transmission line for laser beam welding of the present utility model; Reference symbol list:

[0016] 100. Adhesive- and solvent-free medical transmission line for laser beam welding; 10. Connector; 11. Connector body; 12. Connector connection section; 13. Snap groove; 14. Guide section; 15. Anti-slip strip; 20. Transmission tube; 21. Transmission tube body; 22. Transmission tube connection section; 23. Snap element; 24. Notch; 30a. First weld; 30b. Second weld. DETAILED DESCRIPTION

[0017] To clarify and make more understandable the technical problems, technical solutions, and advantageous effects of this utility model, it is described in more detail below in conjunction with drawings and embodiments. It is understood that the specific embodiments described here serve only to illustrate this utility model and not to limit its scope.

[0018] It should be noted that a component described as being "attached" or "provided" to another component may be located directly or indirectly on that other component. Similarly, when a component is described as being "connected to" another component, it may be connected to that other component directly or indirectly. Terms such as "above," "below," "left," "right," "front," "rear," "vertical," "horizontal," "above," "below," "within," and "outside," which indicate orientation or positional relationship, are based on the orientation or positional relationship shown in the attached drawings. They are used only for the sake of simplicity and to simplify the description of the present application and are therefore not to be understood as limiting the present application. Terms such as "first," "second," etc., are not to be construed as limiting the present application.These terms serve only to facilitate the description of the purpose and are not to be understood as indicating their relative importance or implicitly defining the number of technical characteristics specified. "A multitude of" means two or more unless explicitly defined otherwise.

[0019] As in Fig. As shown in Figure 1, this embodiment provides an adhesive- and solvent-free medical transmission line 100 for laser beam welding, which can be connected to a medical device and comprises a connector 10 and a transmission tube 20. As shown in the Fig. 2 and Fig. As shown in Figure 3, the connecting piece 10 comprises a connecting piece body 11 and a connecting piece connecting section 12, which are firmly connected to each other, wherein the connecting piece connecting section 12 is provided with a snap groove 13 on an outer wall facing one end of the connecting piece body 11; and wherein the transmission tube 20 comprises a transmission tube body 21 and a transmission tube connecting section 22, wherein the transmission tube connecting section 22 is provided with a snap element 23 on an inner wall facing away from one end of the transmission tube body 21, wherein the transmission tube connecting section 22 is fitted onto an outer surface of the connecting piece connecting section 12, and wherein the snap element 23 is connected to the snap groove 13 in a snap connection.wherein the inner wall of the transmission pipe connection section 22 is in close contact with the outer wall of the connector connection section 12 and is laser-welded for a tight fit. Optionally, the laser welding can weld one turn. Optionally, the laser welding can weld at least two turns, comprising at least one first weld point 30a and one second weld point 30b. In this way, a more reliable sealing connection can be achieved.

[0020] The transmission tube connection section 22 is pushed onto the outside of the connector connection section 12 until the snap element 23 engages with the snap groove 13 to create a tight fit, preventing both from loosening and ensuring the required tensile force of the transmission tube 20 and the connector 10. The laser welding process is then performed using a laser on the part where the inner wall of the transmission tube connection section 22 is in close contact with the outer wall of the connector connection section 12. This close contact ensures effective energy transfer between the components.In this embodiment, a snap element 23 and a snap groove 13 interact, and laser welding replaces the conventional curing process with adhesive. This avoids the volatilization of VOCs through adhesives and improves the safety of medical devices. Furthermore, this utility model utilizes laser welding without an air-drying curing time, reducing product production time, thereby improving production capacity, reducing manual operation, and achieving automated production. This utility model employs the laser welding process, which ensures a strong and aesthetically pleasing weld seam and offers the advantages of sealing, preventing air and water leaks, and so on.It also strengthens the connection between the two and meets the requirements for sealing and tensile strength of the transmission pipe 20 and the connecting piece 10.

[0021] In one embodiment, as described in the Fig. 2 and Fig. As shown in Figure 3, the snap groove 13 is a recessed groove provided in an annular shape on the outer wall of the connector connecting section 12, and the snap element 23 is an annular projection formed by bending the transmission pipe connecting section 22 inwards, forming a corresponding notch 24 on the outer wall of the transmission pipe connecting section 22, which simplifies the manufacture of the snap element 23, and wherein the annular projection has a wedge-shaped cut, which allows for quick assembly of the snap element 23 in the snap groove 13 as well as easy and labor-saving disassembly.

[0022] In one embodiment, as described in the Fig. 2 and Fig. As shown in Figure 3, an end of the transmission pipe connection section facing away from one end of the transmission pipe body and the snap element are provided within the snap groove, so that, after the snap element 23 is attached and connected to the snap groove 13, the connection between the transmission pipe connection section 22 and the connector connection section 12 has a precise structure and is aesthetically pleasing.

[0023] In one embodiment, the connecting piece section 12 is provided with a guide section 14 at an end facing away from the connecting piece body 11. The guide section 14 facilitates quick and precise insertion of the connecting piece section 12 into the transmission pipe section 22.

[0024] In one embodiment, the wall thickness of the transmission pipe connection section 22 is not greater than 4 mm, and the wall thickness of the connector connection section 12 is not limited.

[0025] Optionally, the wall thickness of the transmission pipe connection section 22 is 4 mm. Optionally, the wall thickness of the transmission pipe connection section 22 is 3 mm. Optionally, the wall thickness of the transmission pipe connection section 22 is 2 mm. It goes without saying that the wall thickness of the transmission pipe connection section 22 is not limited to the above case, but can also assume other cases, which are not limited here. In an embodiment, as in Fig. As shown in Figure 2, the connector body 11 is provided with a multitude of anti-slip strips 15 on its outer wall. The anti-slip strip 15 increases the friction of the connector 10, which in turn improves the stability of the connector 10.

[0026] In one embodiment, a laser light source with a wavelength of 800 nm to 1000 nm, a power of 100 W, and instantaneous time shift is used for laser welding. Optionally, a laser light source with a wavelength of 808 nm is used for laser welding. Optionally, a laser light source with a wavelength of 980 nm is used for laser welding.

[0027] In one embodiment, the transmission pipe connection section 22 is a transparent or semi-transparent plastic element, and the connector connection section 12 is a transparent or non-transparent plastic element.

[0028] Since the transmission tube connection section 22 is attached to the outside of the connector connection section 12, the transmission tube connection section 22 is located in the surface layer, and the transmission tube connection section 22 in its surface layer is designed as a transparent or semi-transparent plastic element to facilitate the penetration of the laser beam into the weld layer. Similarly, the connector connection section 12 is located inside the transmission tube connection section 22, i.e., the connector connection section 12 is located in the inner layer, and the connector connection section 12 in the inner layer is designed as a semi-transparent or opaque plastic element to facilitate the absorption of the laser energy and its subsequent conversion into heat energy, thus melting the components to be joined.

[0029] The laser light penetrates the transparent or semi-transparent surface layer of the transmission pipe connector 22 and enters the weld layer between the transmission pipe connector 22 and the connector section 12. The semi-transparent or opaque connector section 12 in the inner layer absorbs the energy and converts it into heat energy. Sufficient volume is absorbed to heat and plasticize the polymer throughout the component, causing the closely spaced outer wall of the connector section 12 and the inner wall of the transmission pipe connector section 22 to fuse together. The outer wall of the connector section 12 and the inner wall of the transmission pipe connector section 22 are welded to form a complete coil, thus completing the sealed assembly.

[0030] Optionally, the material of the transmission pipe connection section 22 is the same as the material of the connector connection section 12. Optionally, the material of the transmission pipe connection section 22 is different from the material of the connector connection section 12, and if the materials of the two are different, an overlapping melting temperature of the two materials must be taken into account.

[0031] Optionally, the material of the connector-connection section 12 PC or PE or ABS or PPUS or PET or PMMA or PCTG or POM or PA6 or PA66 or PA or PP or silicone or PVC or PS or HDPE or LDPE or K-Resin or PETG or TPE or LLDPE or HIPS or PBT or PA+GF30% or PP+GF30% or POM+GF30% or ABS+GF30% or PC+GF30%.

[0032] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present utility model, and to ensure that all modifications, equivalent replacements, improvements, etc., made within the spirit and principles of the present utility model are included in the scope of protection of the present utility model.

Claims

[1] Adhesive and solvent-free medical transmission cable for laser beam welding, characterized by that it includes the following: a connecting piece, wherein the connecting piece comprises a connecting piece body and a connecting piece connecting section which are firmly connected to each other, wherein the connecting piece connecting section is provided with a snap groove on an outer wall facing one end of the connecting piece body; a transmission pipe, wherein the transmission pipe comprises a transmission pipe body and a transmission pipe connection section, wherein the transmission pipe connection section is provided with a snap element on an inner wall facing away from one end of the transmission pipe body; wherein the transmission pipe connection section is attached to an outside of the connector connection section, wherein the snap element is connected to the snap groove in a snap connection, wherein the inner wall of the transmission pipe connection section is in close contact with the outer wall of the connector connection section and is laser welded for a tight fit. [2] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by, that the snap groove is a recessed groove provided in an annular shape on the outer wall of the connector-connecting section; wherein the snap element is an annular projection formed by bending the transmission pipe-connecting section inwards, forming a corresponding notch on the outer wall of the transmission pipe-connecting section, and wherein the annular projection has a wedge-shaped cut. [3] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by , that an end of the transmission pipe connection section facing away from one end of the transmission pipe body and the snap element are provided within the snap groove. [4] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized bythat the connecting piece connecting section is provided with a guide section at an end facing away from the connecting piece body. [5] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by that the connector body is provided with a large number of anti-slip strips on the outer wall. [6] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by that the transmission pipe connection section is a transparent or semi-transparent plastic element. [7] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 6, characterized by that the connector-connecting section is a transparent or non-transparent plastic element. [8] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by that the wall thickness of the transmission pipe connection section is not greater than 4 mm. [9] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by , that the wavelength of the laser light source for laser welding is 800 nm to 1000 nm. [10] Adhesive and solvent-free medical transmission cable for laser beam welding according to claim 1, characterized by , that a laser light source with a wavelength of 808 nm is used for laser welding, or that a laser light source with a wavelength of 980 nm is used for laser welding.

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