WO2021035542A1

WO2021035542A1 - Manufacturing method of fluid delivery pipeline for medical device

Info

Publication number: WO2021035542A1
Application number: PCT/CN2019/102875
Authority: WO
Inventors: 乔志华; 杨战孝; 罗建成; 陈培涛
Original assignee: 深圳迈瑞生物医疗电子股份有限公司; 深圳迈瑞科技有限公司
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2021-03-04
Also published as: CN114126696A; CN114126696B

Abstract

Provided are a manufacturing method of a fluid delivery pipeline (300) for medical device and a fluid delivery pipeline (300), the manufacturing method can manufacture a fluid delivery pipeline (300) through a relatively simple process, the fluid delivery pipeline (300) is completely sealed between the pipe bodies (310), the tightness of the pipe bodies (310) can be ensured, and the reliability of the fluid transport pipeline is improved. Further, the manufacturing method has lower processing difficulty than the prior method, which can reduce production costs and improve manufacturing efficiency.

Description

Manufacturing method of fluid conveying pipeline for medical equipment

Technical field

This application relates to the field of medical equipment, and in particular to a method for manufacturing a fluid delivery pipeline for medical equipment.

Background technique

The anesthesia machine is one of the most commonly used equipment in the operating room. The traditional anesthesia machine implements gas delivery through a bellows. The gas flow control accuracy is not high, and the bellows structure is difficult to clean and disinfect, and there is a risk of infection. In recent years, a new type of gas delivery pipeline has emerged, which greatly improves the accuracy of gas flow control, has a simple structure, is convenient to disassemble and assemble, and is easy to clean and disinfect. However, this kind of gas conveying pipeline has higher requirements on the structural sealability and reliability of the gas conveying pipeline itself, and its special tubular structure and airtightness requirements make the forming process very difficult.

Summary of the invention

technical problem

The solution to the problem

Technical solutions

This application mainly provides a novel method for manufacturing a fluid delivery pipeline for medical equipment and a fluid delivery pipeline.

An embodiment of the present application provides a method for manufacturing a fluid delivery pipeline for medical equipment, including:

Preparation step: providing a blank for processing into a fluid conveying pipe, the blank having a bottom wall, a top wall and a side wall arranged between the top wall and the bottom wall, the bottom wall, the top wall and the side wall surrounding Into a cavity, the side wall is reserved with an inlet and an outlet used as a fluid conveying pipe, or the bottom wall, the top wall and the side wall enclose a sealed cavity;

And the extrusion step: using a convex die to extrude the top wall and/or bottom wall of the blank, so that a part of the top wall and the bottom wall are fused into one body to form a partition, and the partition divides the cavity into Connected pipe channel for fluid transportation.

In an embodiment, in the extrusion step, the convex mold has two extrusion parts that spirally protrude from the middle of the convex mold to the outside, and the inner ends of the two extrusion parts have a gap and Relative settings.

In an embodiment, in the extrusion step, before and/or during the extrusion of the billet, the entire billet is heated so that a part of the top wall and the bottom wall Is squeezed and fused into the partition.

In an embodiment, in the pressing step, when the top wall and/or the bottom wall are pressed to fit each other, ultrasonic waves are applied to the fusion point of the top wall and the bottom wall for welding, so that A part of the top wall and the bottom wall are squeezed and fused to form the partition.

In an embodiment, the blank has a sealed cavity, and after the extrusion step is completed, the top wall, side wall or bottom wall is processed by a cutting process to form the inlet and the outlet of the fluid conveying pipeline.

In an embodiment, the shortest linear distance a between the outlet and the inlet takes a value of 50mm≤a≤200mm.

In an embodiment, the direction of the outlet and the inlet are the same.

In an embodiment, the total volume of the tube passage is in the range of 800±100 milliliters, and the total length of the tube passage is in the range of 3±0.8 meters.

In an embodiment, the inlet and the outlet are arranged side by side or stacked on top of each other.

Preparation step: providing the upper blank and the lower blank for processing into the fluid conveying pipeline, the upper blank and the lower blank are disc-shaped;

And the extrusion step: placing the upper billet and the lower billet in such a way that the inner surfaces face each other, and use a punch to squeeze the upper billet and/or the lower billet so that the upper billet and the lower billet are surrounded by Closed, and a part of the upper billet and the lower billet is squeezed and fused into one body to form a partition, and the partition separates the cavity enclosed by the upper billet and the lower billet into a communicating tube channel, Used for fluid transportation.

In an embodiment, the inner surface of at least one of the upper billet and the lower billet has a concave groove and a convex portion located on both sides of the concave groove; in the extrusion step, the convex portion and the corresponding The inner surface of the upper billet or the lower billet is fused into one body to form a partition, and the recessed groove is enclosed with the inner surface of the corresponding upper billet or the lower billet to form a tube body channel.

In an embodiment, there are two convex portions of the upper blank and/or lower blank, and the two convex portions spiral outward from the middle of the corresponding upper blank or lower blank. The inner ends of the two protrusions have a gap and are arranged oppositely.

In an embodiment, the middle part of the inner surface of at least one of the upper blank and the lower blank is a flat surface or a spherical surface.

In one embodiment, in the extrusion step, before and/or during the extrusion process of the upper billet and/or the lower billet, the upper billet and the lower billet are integrally processed Heating, so that the upper billet and the lower billet are squeezed and fused to form the partition.

In an embodiment, in the extrusion step, when the upper billet and the lower billet are squeezed to fit each other, ultrasonic waves are applied to the fusion point of the upper billet and the lower billet for welding , So that the upper billet and the lower billet are squeezed and fused to form the partition.

In an embodiment, the upper billet and/or the lower billet has a gap for forming an inlet and an outlet, and the inlet and the outlet are arranged side by side or stacked.

Preparation steps: providing a tube body with a tube body channel, the tube body having an inlet end and an outlet end, the inlet end having an inlet, and the outlet end having an outlet;

Pipeline arranging step: arranging the inlet end and outlet end of the pipe side by side or stacked, folding the part of the pipe body at the inlet end and the outlet end in half and arranging in a spiral shape;

And the fixing step: fixing the adjacent parts of the pipe body into a whole.

In an embodiment, in the fixing step, glue is poured and cured between adjacent parts of the tube body.

In an embodiment, in the fixing step, the tube body is placed in a fixed container as a whole, and the container wall of the fixed container forms a limit on the circumference of the tube body.

Preparation steps: providing an investment mold and a soluble mold core, the investment mold having a cavity matching the soluble mold core, the soluble mold core is installed in the cavity, the mold core is tubular, and It has an inlet end and an outlet end, the inlet end has an inlet, the outlet end has an outlet, the inlet end and the outlet end of the mold core are arranged side by side or stacked, and the mold core is partially folded in half at the inlet end and the outlet end And arranged in a spiral shape;

The step of welding the mold core: assembling the investment mold, welding the soluble mold core in the investment mold, and discharging the soluble mold core after welding;

The casting step: pouring the liquid preparation material into the cavity to form the fluid conveying pipeline.

An embodiment of the present application provides a method for manufacturing a fluid delivery pipeline for medical equipment, including: using a 3D printing process to make the fluid delivery pipeline, the fluid delivery pipeline has an inlet end and an outlet end, so The inlet end has an inlet, and the outlet end has an outlet; the inlet end and the outlet end are arranged side by side or stacked, and the parts of the fluid conveying pipe at the inlet end and the outlet end are folded in half and arranged in a spiral shape.

An embodiment of the present application provides a fluid delivery pipeline for medical equipment. The fluid delivery pipeline is manufactured by the manufacturing method described in any one of the above. The fluid delivery pipeline includes a pipe body and a pipe located in the pipe. The partition of adjacent parts of the body, the pipe body and the partition are an integral structure.

In an embodiment, the pipe body has an inlet end and an outlet end, the inlet end has an inlet, the outlet end has an outlet, the inlet end and the outlet end of the pipe body are arranged side by side or stacked, and the pipe body The parts at the inlet end and the outlet end are folded in half and arranged in a spiral shape, and the partition is integrated with the outer wall of the tube.

According to the manufacturing method of the above-mentioned embodiment, it is possible to manufacture a fluid conveying pipe through a relatively simple process. The pipe bodies of the fluid conveying pipe are completely sealed, which can ensure the tightness of the pipe body and improve the reliability of the fluid conveying pipe. Sex. Moreover, the manufacturing method has lower processing difficulty than existing methods, can reduce production costs and improve manufacturing efficiency.

The beneficial effects of the invention

Brief description of the drawings

Description of the drawings

Figure 1 is a schematic diagram of the blank used in the preparation step in an embodiment of the application;

Fig. 2 is a schematic diagram of extruding blanks in an extrusion step in an embodiment of the application;

3 is a schematic diagram of the structure of the extrusion part of the punch in an embodiment of the application;

4 is a schematic diagram of a fluid conveying pipe formed in an embodiment of the application;

Figure 5 is a partial cross-sectional view of a fluid delivery pipeline in an embodiment of the application;

Fig. 6 is an enlarged schematic diagram of the partitioned part in the cross-sectional view shown in Fig. 5;

7 and 8 are schematic diagrams of the upper billet and the lower billet used in the preparation step in an embodiment of the application.

Invention embodiment

Embodiments of the present invention

Hereinafter, the present invention will be further described in detail through specific embodiments in conjunction with the drawings. Among them, similar elements in different embodiments use related similar element numbers. In the following embodiments, many detailed descriptions are used to make this application better understood. However, those skilled in the art can easily realize that some of the features can be omitted under different circumstances, or can be replaced by other elements, materials, and methods. In some cases, some operations related to this application are not shown or described in the specification. This is to avoid the core part of this application being overwhelmed by excessive descriptions. For those skilled in the art, these are described in detail. Related operations are not necessary, they can fully understand the related operations based on the description in the manual and the general technical knowledge in the field.

In addition, the features, operations, or features described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be sequentially exchanged or adjusted in a manner obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment, and are not meant to be a necessary sequence, unless it is specified that a certain sequence must be followed.

The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application include direct and indirect connection (connection) unless otherwise specified.

This embodiment provides a method for manufacturing a fluid delivery pipeline for medical equipment. The fluid delivery pipeline manufactured by the manufacturing method can be applied to various medical equipment, especially anesthesia machines and ventilators. Among them, the fluid transportation pipeline can be used to transport various types of fluids such as gas and liquid, and is not limited to the transportation of gas.

In one embodiment, an extrusion method is used to form the required fluid conveying pipe. The manufacturing method includes:

Preparation steps: As shown in Figure 1, a blank 100 for processing into a fluid conveying pipe is provided. The blank 100 has a bottom wall 110, a top wall 120, and a side wall 130 arranged between the top wall 120 and the bottom wall 110, The bottom wall 110, the top wall 120 and the side wall 130 enclose a cavity, and the side wall 130 is reserved with an inlet 311 and an outlet 312 of the fluid conveying pipe, or the bottom wall 110, the top wall 120 and the side wall 130 enclose a sealed cavity ；

And the extrusion step: as shown in Figures 2-6, the top wall 120 and/or the bottom wall 110 of the blank 100 is extruded by a convex die, so that a part of the top wall 120 and the bottom wall 110 are integrated to form a partition 320. As shown in Figures 5 and 6, the partition 320 divides the cavity into a communicating tube channel 313 for fluid transportation.

Wherein, the extrusion process can be implemented by various existing extrusion processing equipment, and these extrusion processing equipment will not be described in detail here.

As shown in FIG. 1, the blank 100 may be a flat structure. The blank 100 can be made of metal, plastic or other materials that can be squeezed and deformed. Considering that the fluid delivery pipeline is mainly used in an anesthesia machine system, in one embodiment, the blank 100 can also be made of a material with anti-anesthetic corrosion function.

The blank 100 may be formed by injection molding or the like, for example, blow molding. In this embodiment, the blank 100 is a sealed cavity structure. After the extrusion step is formed, the top wall 120, the side wall 130 or the bottom wall 110 can be processed by a cutting process to form the inlet 311 and the outlet of the fluid conveying pipe. 312. As shown in FIG. 4, in an embodiment, the inlet 311 and the outlet 312 are opened on the side wall 130. Of course, in some embodiments, the inlet 311 and the outlet 312 themselves can be arranged on the blank 100. For example, the inlet 311 and the outlet 312 can be made when the blank 100 is manufactured, or a large opening can be made, and then In the squeezing step, this large opening is squeezed and merged from the middle to form an inlet 311 and an outlet 312.

Wherein, the inlet 311 and the outlet 312 are close to each other, and can be arranged side by side or stacked on top of each other. In an embodiment, the shortest linear distance a between the inlet 311 and the outlet 312 is 50mm≤a≤200mm. Or, in an embodiment, the orientation of the inlet 311 and the outlet 312 are the same.

In the fluid conveying pipe manufactured by this manufacturing method, the partition 320 is formed by the fusion of the top wall 120 and the bottom wall 110 of the blank 100. After the cavity is partitioned, the partition 320 has no gaps and has good air-tightness. The space can be completely sealed, which can ensure the tightness of the pipe body and improve the reliability of the fluid transmission pipeline.

Wherein, in the extrusion step, the extrusion portion 211 of the punch 210 for extruding the blank 100 can be selected according to the desired shape of the fluid conveying pipe. For example, in order to form a fluid conveying pipe of the shape shown in FIG. 4, in an embodiment, please refer to FIG. 3. In the extrusion step, the convex mold 210 has two spiral convexes from the middle of the convex mold 210 to the outside. The inner ends 211a, 211b of the two squeezing portions 211 have a gap and are opposite to each other. The two squeezing portions 211 cross each other from the inner ends 211a, 211b and are distributed in a spiral shape, similar to common The structure of the disc-shaped mosquito coil is such a distributed structure formed by the partition 320 (the partition 320 is extruded by the extruded portion 211) in FIG. 4. The squeezing portion 211 is used to squeeze the blank 100 with a sharp corner or a smooth rounded corner at one end, so that after the blank 100 is squeezed, a corresponding sharp corner or a smooth rounded corner is also formed at the corner.

The fluid delivery pipe 300 formed by the extrusion part 211 of the above-mentioned embodiment is shown in FIG. 4. This structure can reuse space, and a longer fluid delivery pipe 300 can be arranged in a smaller space. Of course, the fluid delivery pipe 300 manufactured by the manufacturing method shown in the present application is not limited to the shape shown in FIG. 4.

Further, in order to make the top wall 120 and the bottom wall 110 of the billet 100 better fuse during the extrusion process, in an embodiment, in the extrusion step, the billet 100 is extruded and/or is During the extrusion process, the entire billet 100 is heated, for example, the billet 100 is heated in a mold containing the billet 100, so that a part of the top wall 120 and the bottom wall 110 are extruded and merged into a partition 320.

Of course, in other embodiments, ultrasonic welding can also be used to promote the fusion of the blank 100. For example, in the squeezing step, when the top wall 120 and/or the bottom wall 110 are squeezed to fit each other, ultrasonic waves are applied to the fusion point of the top wall 120 and the bottom wall 110 for welding, so that the top wall 120 and the bottom wall A part of 110 is squeezed and fused into a partition 320. The ultrasonic welding can be performed at room temperature, so there is no need to heat the blank 100 separately.

In an embodiment, the total volume of the tube passage is in the range of 800±100 ml, preferably, for example, the total volume of the tube passage is in the range of 750±50 ml.

In an embodiment, the total length of the tube passage is 3±0.8 meters. Preferably, for example, the total length of the pipe passage is in the range of 2.65±0.5 meters.

In another embodiment, another method for manufacturing a fluid delivery pipe 300 for medical equipment is also provided.

The manufacturing method includes:

Preparation steps: As shown in FIGS. 7 and 8, an upper blank 411 and a lower blank 412 for processing into the fluid conveying pipe 300 are provided, and at least one of the upper blank 411 and the lower blank 412 has a recessed groove 413 on the inner surface And the protrusions 414 located on both sides of the recessed groove 413 (Figure 8 shows the position of the recessed groove 413 and the protrusion 414 from the outer surface of the upper blank 411, which shows the uneven state and the position on the inner surface The recessed groove 413 is opposite to the raised portion 414, and the structure of the inner surface of the upper blank 411 can refer to the inner surface of the lower blank 412).

And the extrusion step: as shown in Figures 7 and 8, the upper billet 411 and the lower billet 412 are placed with their inner surfaces facing each other, and the upper billet 411 is squeezed using a punch 210 (refer to Figures 2 and 3) And/or the lower billet 412, the raised portion 414 is fused with the inner surface of the corresponding upper billet 411 or the lower billet 412 to form a partition 320 (as shown in FIG. 6), and the recessed groove 413 is connected to the corresponding upper billet 411 or the inner surface of the lower billet 412. The inner surface of the blank 411 or the under blank 412 is enclosed to form a tube channel 313 (as shown in FIG. 6) for fluid transportation.

Wherein, in the embodiment shown in FIGS. 7 and 8, the inner surfaces of the upper blank 411 and the lower blank 412 both have protrusions 414 and recessed grooves 413. In the extrusion step, the protrusions 414 of the upper billet 411 and the lower billet 412 are butted and fused to form a partition 320, and the concave groove 413 is butted to form a pipe channel 313.

When only one of the upper billet 411 and the lower billet 412 has a raised portion 414 and a recessed groove 413, the other can be configured to be able to cooperate with the raised portion 414 and the recessed groove 413, for example, can be configured as one In a plane, the raised portion 414 merges with a part of the plane to form a partition 320, and the recessed groove 413 and the inner surface of the plane form a pipe channel 313 together.

The upper billet 411 and the lower billet 412 can be prepared in advance, and they can be formed into the aforementioned desired shape and structure by extrusion or other methods.

In order to form the fluid conveying pipe 300 as shown in FIG. 4, in an embodiment, the upper blank 411 and/or the lower blank 412 have two protrusions 414, and the two protrusions 414 are from the corresponding upper The middle part of the blank 411 or the under blank 412 is arranged in a spiral shape to the outside, the inner ends 4141 of the two protrusions 414 have a gap and are arranged oppositely, and the two protrusions 414 are wound around each other from the inner end 4141 to form a disc shape The structure is similar to the structure of the disc-shaped mosquito coil, such as the distribution structure formed by the partition 320 (the partition 320 is formed by the protrusion 414) in FIG. 4.

When it is necessary to form the fluid conveying pipe 300 in other shapes, it can be realized by changing the shape and structure of the concave groove 413 and the convex portion 414 of the upper blank 411 and/or the lower blank 412.

Of course, in some embodiments, the upper billet 411 and the lower billet 412 may not be provided with protrusions 414 and recessed grooves 413. For example, in one embodiment, the upper billet 411 and the lower billet 412 are The middle of the inner surface is flat or spherical.

In the extrusion step, the upper billet 411 and the lower billet 412 are placed with their inner surfaces facing each other, and the upper billet 411 and/or the lower billet 412 are extruded with a punch to make the upper billet 411 and the lower billet 412 The four sides are closed, and a part of the upper billet 411 and the lower billet 412 are squeezed and fused to form a partition 320 (as shown in Figure 6), which separates the cavity enclosed by the upper billet 411 and the lower billet 412 The pipe body channel 313 is connected (as shown in FIG. 6). That is, the protruding parts 414 and the recessed grooves 413 are formed on the upper blank 411 and the lower blank 412 by pressing with a punch, instead of being processed on the upper blank 411 and the lower blank 412 in advance. For the extrusion part on the punch, refer to the structure of the extrusion part 211 shown in FIG. 3.

Further, in the extrusion step, before the upper billet 411 and/or the lower billet 412 are extruded and/or during the extrusion process, the upper billet 411 and the lower billet 412 may be heated as a whole, so as to The upper billet 411 and the lower billet 412 are squeezed and fused into a partition 320. Or, when the upper billet 411 and the lower billet 412 are squeezed to fit each other, the fusion point of the upper billet 411 and the lower billet 412 can also be ultrasonically welded, so that the upper billet 411 and the lower billet 412 can be welded together. The material 412 is squeezed and fused into a partition 320.

In an embodiment, please refer to FIG. 8, the upper blank 411 and/or the lower blank 412 has a gap 415 for forming an inlet 311 and an outlet 312 (as shown in FIG. 4), the inlet 311 and the outlet 312 are side by side or Set up and down stacked.

In some other embodiments, another method for manufacturing the fluid delivery pipe 300 for medical equipment is also provided. The manufacturing method includes:

Preparation steps: Please refer to Figures 4-6 to provide a pipe body 310 with a pipe body channel 313. The pipe has an inlet end and an outlet end. The inlet end has an inlet 311 and the outlet end has an outlet 312;

Pipeline arrangement steps: Please refer to Figure 4-6, set the inlet end and outlet end of the pipe side by side or stack, and fold the part of the pipe body 310 at the inlet and outlet ends in half and arrange them in a spiral shape, as shown in Figure 4 . In an embodiment, the inlet 311 and the outlet 312 are close, and the shortest linear distance a between the two is 50mm≤a≤200mm. Or, in an embodiment, the orientation of the inlet 311 and the outlet 312 are the same;

And the fixing step: fixing the adjacent parts of the tube body 310 into a whole.

Wherein, in the fixing step, the glue between adjacent parts of the tube body 310 is poured and cured. Alternatively, in the fixing step, the tube body 310 is placed in a fixed container as a whole, and the container wall of the fixed container forms a limit on the circumference of the tube body 310.

Of course, in this fixing step, the way of fixing the tube body 310 is not limited to the way of pouring glue and setting the fixing container mentioned above, and can also be realized by other ways, such as welding.

In some other embodiments, another method for manufacturing a fluid delivery pipe for medical equipment is also provided. The manufacturing method includes:

Preparation steps: Provide investment mold and soluble mold core. The investment mold has a cavity matching the soluble mold core. The soluble mold core is installed in the cavity. The mold core is tubular and has an inlet end and an outlet end. The inlet end has Import and export have an export. The inlet and the outlet are close, and the shortest linear distance a between the two is 50mm≤a≤200mm. Or, in an embodiment, the orientation of the inlet and the outlet are the same, for example, the inlet end and the outlet end of the mold core are arranged side by side or stacked one above the other, and the parts of the mold core at the inlet end and the outlet end are folded in half and arranged in a spiral shape;

Fusion mold core step: assemble the investment mold, weld the soluble mold core in the investment mold, and discharge the soluble mold core after welding;

Casting step: pour the liquid preparation material into the cavity to form a fluid conveying pipeline.

Among them, the investment mold and the soluble mold core used in this embodiment can be realized by existing investment processing equipment, and these extrusion processing equipment will not be described in detail here.

Please refer to FIG. 4, the fluid conveying pipe 300 is made by using a 3D printing process. The fluid conveying pipe 300 has an inlet end and an outlet end, the inlet end has an inlet 311, and the outlet end has an outlet 312. In an embodiment, the inlet 311 and the outlet 312 are close, and the shortest linear distance a between the two is 50mm≤a≤200mm. Or, in an embodiment, the orientation of the inlet 311 and the outlet 312 are the same, for example, the inlet end and the outlet end are arranged side by side or stacked on top of each other. The parts of the fluid conveying pipe 300 at the inlet end and the outlet end are folded in half and arranged in a spiral shape.

The above-mentioned various manufacturing methods can manufacture a fluid conveying pipe 300 through a relatively simple process, and the pipe bodies of the fluid conveying pipe 300 are completely sealed, which can ensure the tightness of the pipe body and improve the reliability of the fluid conveying pipe. Moreover, the manufacturing method has lower processing difficulty than existing methods, can reduce production costs and improve manufacturing efficiency. Based on the foregoing various manufacturing methods, in one embodiment of the present application, a fluid delivery pipe 300 for medical equipment is also provided. The fluid delivery pipe 300 is manufactured by using the manufacturing method shown in any of the foregoing embodiments.

Please refer to FIG. 4, the fluid conveying pipe 300 includes a pipe body 310 and a partition 320 located at an adjacent part of the pipe body, and the pipe body 310 and the partition 320 are an integral structure.

In an embodiment, the tube body 310 has an inlet end and an outlet end, the inlet end has an inlet 311 and the outlet end has an outlet 312. In an embodiment, the inlet 311 and the outlet 312 are close, and the shortest linear distance a between the two is 50mm≤a≤200mm. Or, in an embodiment, the orientation of the inlet 311 and the outlet 312 are the same, for example, the inlet end and the outlet end are arranged side by side or stacked on top of each other, the part of the pipe body at the inlet end and the outlet end is folded in half and arranged in a spiral shape, and the pipe body is separated from 320 and the pipe body. The outer wall merges into one.

The above uses specific examples to illustrate the application, which are only used to help understand the application, and are not used to limit the application. For those of ordinary skill in the art, according to the idea of the present application, the above-mentioned specific implementation manners can be changed.

Claims

A method for manufacturing a fluid delivery pipeline for medical equipment, which is characterized in that it comprises:

Preparation step: providing a blank for processing into a fluid conveying pipe, the blank having a bottom wall, a top wall and a side wall arranged between the top wall and the bottom wall, the bottom wall, the top wall and the side wall surrounding Into a cavity, the side wall is reserved with an inlet and an outlet for a fluid conveying pipe, or the bottom wall, top wall and side wall form a sealed cavity;

And the extrusion step: using a convex die to extrude the top wall and/or bottom wall of the blank, so that a part of the top wall and the bottom wall are fused into one body to form a partition, and the partition divides the cavity into Connected pipe channel for fluid transportation.
The manufacturing method according to claim 1, characterized in that, in the extrusion step, the convex mold has two extrusion parts that spirally protrude from the middle of the convex mold to the outside, and the two extrusions The inner end of the pressing part has a gap and is arranged oppositely.
The manufacturing method according to claim 1 or 2, wherein in the extrusion step, the entire billet is heated before and/or during the extrusion process. So that a part of the top wall and the bottom wall are squeezed and fused to form the partition.
The manufacturing method according to claim 1 or 2, characterized in that, in the pressing step, when the top wall and/or the bottom wall are pressed to fit each other, the top wall and the bottom wall The fusion point is ultrasonically welded so that a part of the top wall and the bottom wall are squeezed and fused to form the partition.
The manufacturing method of claim 1, wherein the blank has a sealed cavity, and after the extrusion step is completed, the top wall, the side wall or the bottom wall are processed by a cutting process to form a fluid The inlet and outlet of the pipeline.
The manufacturing method according to claim 1 or 5, wherein the shortest linear distance a between the outlet and the inlet takes a value of 50mm≤a≤200mm.
The manufacturing method according to claim 1 or 5, wherein the direction of the outlet and the inlet are the same.
The manufacturing method according to any one of claims 1-7, wherein the total volume of the pipe passage is in the range of 800 ± 100 ml, or the total length of the pipe passage is in the range of 3 ± 0.8 m .
8. The manufacturing method according to any one of claims 1-8, wherein the inlet and the outlet are arranged side by side or stacked on top of each other.
A method for manufacturing a fluid delivery pipeline for medical equipment, which is characterized in that it comprises:

Preparation step: providing the upper blank and the lower blank for processing into the fluid conveying pipeline, the upper blank and the lower blank are disc-shaped;

And the extrusion step: placing the upper billet and the lower billet in such a way that the inner surfaces face each other, and use a punch to squeeze the upper billet and/or the lower billet so that the upper billet and the lower billet are surrounded by Closed, and a part of the upper billet and the lower billet is squeezed and fused into one body to form a partition, and the partition separates the cavity enclosed by the upper billet and the lower billet into a communicating tube channel, Used for fluid transportation.
The manufacturing method according to claim 10, wherein the inner surface of at least one of the upper blank and the lower blank has a concave groove and protrusions located on both sides of the concave groove; in the pressing step The protruding portion is fused with the inner surface of the corresponding upper blank or lower blank to form a partition, and the recessed groove is enclosed with the inner surface of the corresponding upper blank or lower blank to form a tube passage.
The manufacturing method according to claim 11, wherein there are two convex portions of the upper blank and/or lower blank, and the two convex portions are derived from the corresponding upper blank or lower blank. The middle part of the blank is arranged in a spiral shape to the outside, and the inner ends of the two convex parts are arranged oppositely with a gap.
The manufacturing method according to claim 10, wherein the middle part of the inner surface of at least one of the upper blank and the lower blank is a flat surface or a spherical surface.
The manufacturing method according to any one of claims 10-13, wherein in the extrusion step, before and/or during the extrusion of the upper billet and/or the lower billet , Heating the upper billet and the lower billet as a whole, so that the upper billet and the lower billet are squeezed and fused to form the partition.
The manufacturing method according to any one of claims 10-13, wherein in the extrusion step, when the upper billet and the lower billet are squeezed to fit each other, the upper billet is Ultrasonic welding is applied to the fusion place of the raw material and the lower billet, so that the upper billet and the lower billet are squeezed and fused to form the partition.
The manufacturing method according to any one of claims 10-15, wherein the upper blank and/or the lower blank has a gap for forming an inlet and an outlet, and the inlet and the outlet are arranged side by side or stacked.
A method for manufacturing a fluid delivery pipeline for medical equipment, which is characterized in that it comprises:

Preparation steps: providing a tube body with a tube body channel, the tube body having an inlet end and an outlet end, the inlet end having an inlet, and the outlet end having an outlet;

Pipeline arranging step: arranging the inlet end and outlet end of the pipe body side by side or stacked, folding the part of the pipe body at the inlet end and the outlet end in half and arranging in a spiral shape;

And the fixing step: fixing the adjacent parts of the pipe body into a whole.
17. The manufacturing method according to claim 17, wherein in the fixing step, glue is poured and cured between adjacent parts of the tube body.
18. The manufacturing method according to claim 17, wherein in the fixing step, the tube body is placed in a fixed container as a whole, and the container wall of the fixed container forms a limit on the circumference of the tube body.
A method for manufacturing a fluid delivery pipeline for medical equipment, which is characterized in that it comprises:

Preparation steps: providing an investment mold and a soluble mold core, the investment mold having a cavity matching the soluble mold core, the soluble mold core is installed in the cavity, the mold core is tubular, and It has an inlet end and an outlet end, the inlet end has an inlet, the outlet end has an outlet, the inlet end and the outlet end are arranged side by side or stacked, and the part of the mold core at the inlet end and the outlet end is folded in half and spirals形Layout;

The step of welding the mold core: assembling the investment mold, welding the soluble mold core in the investment mold, and discharging the soluble mold core after welding;

The casting step: pouring the liquid preparation material into the cavity to form the fluid conveying pipeline.
A method for manufacturing a fluid delivery pipeline for medical equipment, which is characterized in that it comprises: using a 3D printing process to make the fluid delivery pipeline, the fluid delivery pipeline has an inlet end and an outlet end, and the inlet end has an inlet The outlet end has an outlet; the inlet end and the outlet end are arranged side by side or stacked, and the parts of the fluid conveying pipe at the inlet end and the outlet end are folded in half and arranged in a spiral shape.
A fluid delivery pipeline for medical equipment, wherein the fluid delivery pipeline is manufactured by the manufacturing method according to any one of claims 1-21, and the fluid delivery pipeline includes a pipe body and a pipe body located on the pipe body. For the partition of adjacent parts, the pipe body and the partition are an integral structure.
The fluid delivery pipeline according to claim 22, wherein the pipe body has an inlet end and an outlet end, the inlet end has an inlet, the outlet end has an outlet, and the pipe body has an inlet end and an outlet end. They are arranged side by side or stacked, the part of the pipe body at the inlet end and the outlet end is folded in half and arranged in a spiral shape, and the partition is integrated with the outer wall of the pipe body.