JP7271233B2 - Positioning device for processing location of multi-lumen tube and manufacturing method of processed multi-lumen tube using same - Google Patents

Description

The present invention relates to a device for determining the position of a multi-lumen tube in processing a multi-lumen tube, and a method for manufacturing a processed multi-lumen tube using this device for positioning the processing location of the multi-lumen tube.

Some catheters, such as catheters with electrodes, use multi-lumen tubes with multiple lumens. In the processing of this multi-lumen tube, a part of the multi-lumen tube is scraped off to allow access to the lumen from the outer surface of the tube in order to use it as an injection port for the adhesive or to secure a sterile flow path. be.

For example, in Patent Document 1, a cut is made in the outer peripheral surface of a material tube to form a guide wire port communicating with the lumen, and a metal core inserted into the lumen protrudes from the guide wire port to heat the material tube. A method for manufacturing a medical tube is disclosed by processing a material tube. Patent Document 2 discloses forming a wire insertion hole in the middle of a catheter tube, inserting a core material through the wire insertion hole, and inserting a filler into the lumen. and removing the core material. Patent Document 3 discloses a method of manufacturing an endoscopic treatment instrument in which a cut surface is formed by cutting from the outer peripheral surface of the multi-lumen sheath to the inside of the guide wire lumen. A method for manufacturing a surgical instrument for a scope is disclosed in which a metal core is inserted into a guidewire lumen to regulate the depth of cut of a guidewire sheath.

JP 2018-130313 A JP 2017-18209 A JP 2016-202231 A

However, in the manufacturing methods such as Patent Documents 1 to 3, it is difficult to always determine the position from the end of the multi-lumen tube and the position in the rotational direction. There was a problem that the position of the processed part such as the catheter was different for each catheter. In the mass production of catheters, efficient and stable processing of multi-lumen tubes is required.

The present invention has been made in view of the above circumstances, and an object of the present invention is to improve productivity by easily and stably performing positioning in processing of a multi-lumen tube. An object of the present invention is to provide a location positioning device and a method for manufacturing a processed multi-lumen tube using this location positioning device for a multi-lumen tube.

A multi-lumen tube processing location positioning device that can solve the above problems is a multi-lumen tube processing location positioning device that includes a first lumen and a second lumen, and is arranged in the first lumen. a first core member arranged in the second lumen; and an abutting portion with which one end of the multi-lumen tube contacts.

It is preferable that the apparatus for positioning a processed portion of the multi-lumen tube of the present invention has a core material holding portion that holds at least one of the first core material and the second core material.

In the device for positioning the processed portion of the multi-lumen tube of the present invention, it is preferable that the abutting portion and the core material holding portion have an integral structure.

It is preferable that the apparatus for positioning the processed portion of the multi-lumen tube of the present invention further includes a processing section for processing the multi-lumen tube.

The apparatus for positioning the processed portion of the multi-lumen tube of the present invention further includes a processing section including a knife for cutting the multi-lumen tube, and the core material holding section has the first core material and the second core material inserted therein. The extension direction of the core material insertion part in the direction perpendicular to the axial direction of the multi-lumen tube is perpendicular to the axial direction of the multi-lumen tube and the direction in which the cutting tool advances. is preferably perpendicular to the

The apparatus for positioning the processed portion of the multi-lumen tube of the present invention further includes a processing section including a knife for cutting the multi-lumen tube, and the core material holding section has the first core material and the second core material inserted therein. It is preferable that the multi-lumen tube has a core material insertion portion that extends in a direction perpendicular to the axial direction of the multi-lumen tube, and that the extension direction of the core material insertion portion is parallel to the traveling direction of the cutting tool.

The apparatus for positioning a machined portion of the multi-lumen tube of the present invention has a core material holding part that holds at least one of the first core material and the second core material, and the core material holding part is an axis of the multi-lumen tube. It is preferably rotatable in any direction.

The multi-lumen tube processing location positioning apparatus of the present invention has a multi-lumen tube mounting table on which the multi-lumen tube is mounted, and the multi-lumen tube mounting table has an insertion portion into which a component having an abutting portion is inserted. It is preferable to have more than one.

In the multi-lumen tube positioning device of the present invention, it is preferable that the plurality of insertion portions have different shapes.

In the multi-lumen tube processing location positioning device of the present invention, it is preferable that the multi-lumen tube mounting table has a hole through which the multi-lumen tube is inserted, and that the hole communicates with the insertion portion. .

In the multi-lumen tube processing location positioning device of the present invention, the multi-lumen tube mounting table has a rail arranged along the axial direction of the multi-lumen tube, and the component having the abutting portion is a rail It is preferably movable on top.

A first method for manufacturing a processed multi-lumen tube that can solve the above-described problems is a method for manufacturing a processed multi-lumen tube using a positioning device for a processed portion of a multi-lumen tube of the present invention, comprising: inserting the first core material into the multi-lumen tube, inserting the second core material into the lumen farthest from the first lumen in a cross section perpendicular to the axial direction of the multi-lumen tube, and processing the multi-lumen tube and a step.

A second method for manufacturing a processed multi-lumen tube that can solve the above-mentioned problems is a method for manufacturing a processed multi-lumen tube using the apparatus for positioning a processed portion of a multi-lumen tube according to the present invention, comprising: further has a third lumen, the first lumen having a first core, the second lumen having a second core, and the third lumen having no core; and a step of processing the tube.

According to the apparatus for positioning the processed part of the multi-lumen tube of the present invention, the first core material is arranged in the first lumen, the second core material is arranged in the second lumen, and one end of the multi-lumen tube is placed in the abutting part. By bringing the two into contact with each other, it is possible to quickly determine the position to be processed in the multi-lumen tube so that it is always the same, and it is possible to increase the productivity of the processed multi-lumen tube. Moreover, by inserting the first core material and the second core material into the multi-lumen tube, the rigidity of the multi-lumen tube can be increased, and the processing stability can be enhanced. Furthermore, according to the first and second manufacturing methods of the processed multi-lumen tube of the present invention, it is possible to quickly and stably determine the processing position of the multi-lumen tube, thereby improving the productivity of the processed multi-lumen tube. can be made

FIG. 2 shows a front view of a device for positioning a processed portion of a multi-lumen tube according to an embodiment of the present invention; 2 shows a II-II cross-sectional view of the multi-lumen tube shown in FIG. 1; FIG. FIG. 2 shows a perspective view of a positioning part of the device for positioning the processing location of the multi-lumen tube shown in FIG. 1 ; FIG. 2 shows a front view of a positioning part of the device for positioning the processing location of the multi-lumen tube shown in FIG. 1 ; FIG. 2 shows a VV cross-sectional view of the device for positioning the processing location of the multi-lumen tube shown in FIG. 1; FIG. 10 illustrates a cross-sectional view of a multi-lumen tube processing location positioning device in another embodiment of the present invention;

Hereinafter, the present invention will be described in more detail based on the following embodiments, but the present invention is not limited by the following embodiments, and can be modified appropriately within the scope of the above and later descriptions. It is of course possible to carry out in addition, and all of them are included in the technical scope of the present invention. In each drawing, for the sake of convenience, hatching, member numbers, etc. may be omitted. In such cases, the specification and other drawings shall be referred to. In addition, the dimensions of various members in the drawings may differ from the actual dimensions, since priority is given to helping to understand the features of the present invention.

A multi-lumen tube processing location positioning device 1 according to an embodiment of the present invention is a multi-lumen tube 100 positioning device 1 having a first lumen 110 and a second lumen 120, and is arranged in the first lumen 110. the second core member 12 arranged in the second lumen 120; and the abutting portion 20 with which one end of the multi-lumen tube 100 contacts. In addition, hereinafter, the "positioning device for the processing location of the multi-lumen tube" may be simply referred to as the "positioning device".

FIG. 1 is a front view of a positioning device 1 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view perpendicular to the axial direction of a multi-lumen tube 100. FIG. The positioning device 1 is a device for determining the position of the multi-lumen tube 100 when processing the multi-lumen tube 100 including the first lumen 110 and the second lumen 120 .

As shown in FIGS. 1 and 2, the positioning device 1 includes a first core member 11 arranged in the first lumen 110 of the multi-lumen tube 100 and a second core member 12 arranged in the second lumen 120. have. The first core material 11 is arranged in the first lumen 110 of the multi-lumen tube 100, the second core material 12 is arranged in the second lumen 120 of the multi-lumen tube 100, and the first core material 11 and the second core material 12 are arranged. By fixing the two points, it is possible to prevent the multi-lumen tube 100 from rotating in the axial direction during processing of the multi-lumen tube 100 . By controlling the positions of the first core member 11 arranged in the first lumen 110 and the second core member 12 arranged in the second lumen 120, the position of the multi-lumen tube 100 in the rotational direction with respect to the axial direction can be easily adjusted. can be defined in Furthermore, by arranging the first core member 11 and the second core member 12 in the first lumen 110 and the second lumen 120 of the multi-lumen tube 100, respectively, the rigidity of the multi-lumen tube 100 is increased, and the multi-lumen tube 100 It also has the effect of making processing easier.

It is preferable that the first core member 11 is formed in a rod shape. Examples of the cross-sectional shape of the first core material 11 perpendicular to the axial direction include circular, elliptical, semicircular, and polygonal shapes. Above all, the cross-sectional shape of the first core member 11 perpendicular to the axial direction is preferably the same as the cross-sectional shape of the first lumen 110 perpendicular to the axial direction of the multi-lumen tube 100 . That is, when the cross-sectional shape of the first lumen 110 is circular, it is preferable that the cross-sectional shape of the first core member 11 is also circular. By configuring the first core member 11 in this way, the contact area between the first lumen 110 of the multi-lumen tube 100 and the first core member 11 can be increased, and deformation of the multi-lumen tube 100 can be prevented.

The cross-sectional shape of the first core member 11 perpendicular to the axial direction is preferably the same as the cross-sectional shape of the first lumen 110 perpendicular to the axial direction of the multi-lumen tube 100. The longitudinal length of the vertical cross-sectional shape is preferably less than 1 time the longitudinal length of the cross-sectional shape of the first lumen 110 perpendicular to the axial direction of the multi-lumen tube 100, and is 0.95. It is more preferably 0.9 times or less, more preferably 0.9 times or less. By setting the upper limit of the ratio of the cross-sectional size of the first core material 11 and the cross-sectional size of the first lumen 110 in this way, the gap between the first lumen 110 and the first core material 11 is slightly increased. , the first core member 11 can be easily inserted into the first lumen 110 . In addition, the longitudinal length of the cross-sectional shape perpendicular to the axial direction of the first core member 11 is 0 of the longitudinal length of the cross-sectional shape of the first lumen 110 perpendicular to the axial direction of the multi-lumen tube 100. It is preferably 0.5 times or more, more preferably 0.6 times or more, and even more preferably 0.7 times or more. By setting the lower limit of the ratio of the size of the cross-sectional shape of the first core material 11 and the size of the cross-sectional shape of the first lumen 110 in this way, between the first lumen 110 and the first core material 11, Since there is no excessive gap that causes misalignment in the rotational direction with respect to the axial direction of the multi-lumen tube 100, the effect of preventing misalignment in the rotational direction with respect to the axial direction of the multi-lumen tube 100 can be enhanced.

Materials constituting the first core material 11 include, for example, metals such as stainless steel and Ni—Ti alloys, polyolefin resins such as polyethylene and polypropylene, polyamide resins such as nylon, polyester resins such as PET, and PEEK. Synthetic resins such as aromatic polyether ketone-based resins, polyether polyamide-based resins, polyurethane-based resins, polyimide-based resins, and fluorine-based resins such as PTFE, PFA, and ETFE can be used. Among them, the material constituting the first core member 11 is preferably metal, and more preferably stainless steel. By configuring the first core member 11 in this manner, the first core member 11 is highly durable, can be used repeatedly, and has high slidability with respect to the first lumen 110. can be done. Also, the first core material 11 can be coated to provide desired surface properties. For example, by applying a fluorine-based coating to the first core material 11, the slidability of the first core material 11 within the first lumen 110 can be further enhanced.

The shape of the second core material 12 can be the same as the shape of the first core material 11 . Further, as the material for forming the second core member 12, the materials listed as the material for forming the first core member 11 can be used. The second core material 12 may have a different shape from the first core material 11 , but preferably has the same shape as the first core material 11 . Since the second core member 12 has the same shape as the first core member 11, there is no need to distinguish between the first core member 11 and the second core member 12, and the positioning device 1 becomes easy to handle.

As shown in FIG. 1 , the positioning device 1 has a positioning section 2 that is a mechanism for determining the position of the processed portion of the multi-lumen tube 100 . 3 is a perspective view of the positioning portion 2, and FIG. 4 is a front view of the positioning portion 2. FIG.

As shown in FIGS. 1 to 4, the positioning device 1 has an abutting portion 20 with which one end of the multi-lumen tube 100 contacts. The abutting portion 20 is a member having a portion that contacts one end of the multi-lumen tube 100 . Examples of the shape of the abutting portion 20 include a plate shape having a surface with which one end of the multi-lumen tube 100 contacts, a projection shape having a point with which one end of the multi-lumen tube 100 contacts, and the like. mentioned. By bringing one end of the multi-lumen tube 100 into contact with the abutting portion 20 during processing of the multi-lumen tube 100, movement of the multi-lumen tube 100 to one side in the axial direction can be restricted.

The area of contact between the abutting portion 20 and one end of the multi-lumen tube 100 is preferably 30% or more, more preferably 50% or more, more preferably 70% of the area of the one end of the multi-lumen tube 100. It is more preferable that it is above. By setting the lower limit of the contact area between the abutting portion 20 and the one end of the multi-lumen tube 100 in this manner, a sufficient contact area between the abutting portion 20 and the multi-lumen tube 100 can be secured. Even if a strong force is applied to the multi-lumen tube 100 to one side in the axial direction, the abutting portion 20 can restrict the movement of the multi-lumen tube 100 to one side in the axial direction. The upper limit of the contact area between the abutting portion 20 and the one end of the multi-lumen tube 100 is preferably a large percentage of the area of the one end of the multi-lumen tube 100, and is 100%. is more preferred.

The positioning device 1 preferably has a core material holding portion 30 that holds at least one of the first core material 11 and the second core material 12 . At least one of the first core material 11 and the second core material 12 is effectively prevented from rotating by the core material holding part 30 holding at least one of the first core material 11 and the second core material 12 . This makes it easier to determine the position of the multi-lumen tube 100 in the rotational direction with respect to the axial direction. Note that the core material holding portion 30 may have, for example, a hole-shaped portion through which at least one of the first core material 11 and the second core material 12 is inserted. One having a cap-like structure covering at least one end is mentioned.

Core material holding portion 30 may hold at least one of first core material 11 and second core material 12 , but preferably holds first core material 11 and second core material 12 . By holding both the first core material 11 and the second core material 12 by the core material holding part 30, the relative positions of the first core material 11 and the second core material 12 can be reliably fixed. As a result, rotation of the multi-lumen tube 100 in the axial direction during processing of the multi-lumen tube 100 can be effectively prevented.

When the positioning device 1 has the abutting portion 20 and the core material holding portion 30, it is preferable that the abutting portion 20 and the core material holding portion 30 have an integral structure. Since the abutting portion 20 and the core material holding portion 30 are integrally structured, the portion having the function of restricting the movement of the multi-lumen tube 100 to one side in the axial direction to determine the position in the axial direction, and the multi-lumen The position of the portion having the function of limiting the axial rotation of the tube 100 in the axial direction and determining the position in the rotational direction is close, making it easier to determine the position of the multi-lumen tube 100, and the abutting portion 20 and the core material holding portion 30. By installing one member having the The time required to prepare the positioning device 1 can be shortened compared to installing it in the positioning device 1, and the production efficiency of the processed multi-lumen tube 100 can be improved.

In order to make the abutting portion 20 and the core holding portion 30 integrally structured, for example, as shown in FIGS. A configuration having a part having a hole having a size larger than the outer diameter of the second core member 12 may be employed. By inserting at least one of the first core material 11 and the second core material 12 into the hole of the part in which the abutting part 20 and the core material holding part 30 are integrally structured, the core material holding part 30 functions. , the multi-lumen tube 100 cannot pass through a hole in a part in which the abutment part 20 and the core material holding part 30 are integrally structured, One end of the multi-lumen tube 100 abuts and can function as the abutting part 20 .

The processing unit 40 that processes the multi-lumen tube 100 will be described below. The processing unit 40 is a part of the positioning device 1 that processes the processed portion of the multi-lumen tube. The processing unit 40 makes holes in the multi-lumen tube 100, makes cuts in the multi-lumen tube 100, prints characters, symbols, etc. on the outer surface of the multi-lumen tube 100, and partially changes the physical properties of the multi-lumen tube 100. For this purpose, the multi-lumen tube 100 is processed, such as by heating. Specific examples of the processing unit 40 that punches or cuts the multi-lumen tube 100 include punches and dies, cutting tools 41 such as cutter knives, scissors, and razors, laser processing machines, and the like. Specific examples of the processing unit 40 that prints on the outer surface of the multi-lumen tube 100 include a printing machine, a seal, and the like. Specific examples of the processing unit 40 that heats the multi-lumen tube 100 include a heater, a burner, and the like. As an example of the form of the processing portion 40 in the positioning device 1, a processing portion (1), a processing portion (2-1), and a processing portion (2-2) will be mentioned and explained in detail.

processing unit (1)
As shown in FIG. 1 , the positioning device 1 preferably further has a processing section 40 that processes the multi-lumen tube 100 . Since the positioning device 1 has the processing portion 40, the relative positional relationship between the abutting portion 20 and the processing portion 40 can be maintained, and the multi-lumen tube 100 can be mass-produced. It is possible to make the position to be processed constant.

Processing unit (2-1)
5 is a VV cross-sectional view of the positioning device 1 shown in FIG. 1, and FIG. 6 is a cross-sectional view of the positioning device 1 according to another embodiment of the present invention. As shown in FIG. 1, the positioning device 1 further has a processing section 40 including a blade 41 for cutting the multi-lumen tube 100. As shown in FIGS. It is preferable to have a core member insertion portion 31 through which the first core member 11 and the second core member 12 are inserted. Note that the positioning device 1 shown in FIG. 1 is an example of a device for processing a hole or a notch in the multi-lumen tube 100 by moving the cutter 41 of the processing unit 40 vertically, which is the direction of gravity of the positioning device 1 . be.

As shown in FIGS. 5 and 6, the core material insertion portion 31 is a hole-shaped portion provided in the core material holding portion 30 and through which the first core material 11 and the second core material 12 are inserted. The core material insertion portion 31 may be a hole that communicates with the outside of the core material holding portion 30 . An example of the core material insertion portion 31, which is a hole that communicates with the outside of the core material holding portion 30, has a configuration as shown in FIG. The core material insertion part 31 is preferably a hole that communicates with the outside of the core material holding part 30 . Since the core material insertion part 31 communicates with the outside of the core material holding part 30 , the core material holding part 30 can be moved to the positioning device 1 after the first core material 11 and the second core material 12 are inserted into the multi-lumen tube 100 . The first core material 11 and the second core material 12 can be inserted into the core material insertion part 31 from the part of the core material insertion part 31 that communicates with the outside of the core material holding part 30 even when installed in the can be done.

As shown in FIGS. 1 and 5, the extending direction of the core material insertion portion 31 in the direction perpendicular to the axial direction of the multi-lumen tube 100 is perpendicular to the axial direction of the multi-lumen tube 100, and It is preferably perpendicular to the traveling direction of the blade 41 . Since the extending direction of the core material insertion portion 31 is perpendicular to the axial direction of the multi-lumen tube 100 and perpendicular to the direction in which the blade 41 advances, the blade 41 and the first core member 11 are aligned when the blade 41 advances. and the second core member 12, and the traveling direction of the blade 41 is deflected outward in the radial direction of the multi-lumen tube 100, so that the surface of the multi-lumen tube 100 can be cut by scraping it off. Become.

Processing unit (2-2)
Moreover, as shown in FIG. 6 , it is also preferable that the extension direction of the core material insertion portion 31 in the direction perpendicular to the axial direction of the multi-lumen tube 100 is parallel to the traveling direction of the blade 41 . Since the extension direction of the core material insertion part 31 is parallel to the direction in which the blade 41 advances, the blade 41 does not come into contact with the first core 11 and the second core 12 when the blade 41 advances. 100 can be cut deeply.

Although not shown, the core inserting portion 31 may have a tapered portion that widens toward the opening that is the entrance and exit of the first core 11 and the second core 12 . By configuring the core material insertion portion 31 in this manner, the first core material 11 and the second core material 12 can be easily inserted into the core material insertion portion 31, and the positioning device 1 can be made easy to use. can.

The length in the major axis direction of the cross-sectional shape perpendicular to the axial direction of the first core member 11 may be constant in the axial direction of the first core member 11, but is preferably different. When the length of the longitudinal direction of the cross-sectional shape perpendicular to the axial direction of the first core member 11 differs in the axial direction, for example, the first core member of the portion of the positioning device 1 located at the processed portion 40 A configuration in which the longitudinal length of the cross-sectional shape of the first core member 11 is shorter than the longitudinal length of the cross-sectional shape of the first core member 11 in the portion positioned in the positioning portion 2 is exemplified. Since the longitudinal length of the cross-sectional shape of the first core member 11 perpendicular to the axial direction of the first core member 11 differs in the axial direction of the first core member 11 , in the positioning part 2 , the first core member 11 and the first Since it is difficult for a gap to occur between the lumen 110 and the multi-lumen tube 100 , displacement in the rotational direction with respect to the axial direction is sufficiently prevented. Since there is a gap between the first core member 11 and the blade 41 , the first core member 11 is less likely to interfere with processing such as cutting the multi-lumen tube 100 . Further, by making the first core material 11 sufficiently softer than the blade 41 , the multi-lumen tube 100 can be cut together with the first core material 11 . With such a configuration, it is possible to process the first core member 11 regardless of its cross-sectional shape and thickness.

The positioning device 1 has a core material holding part 30 that holds at least one of the first core material 11 and the second core material 12 , and the core material holding part 30 is rotatable in the axial direction of the multi-lumen tube 100 . is preferably Since the core material holding part 30 is configured in this way, it is possible to freely arrange the position of the multi-lumen tube 100 in the rotational direction with respect to the axial direction of the multi-lumen tube 100, and various locations of the multi-lumen tube 100. It is possible to continuously process the multi-lumen tube 100 using the positioning device 1, and to automate and speed up the processing of the multi-lumen tube 100 using the positioning device 1.

The positioning device 1 has a multi-lumen tube mounting table 50 on which the multi-lumen tube 100 is mounted. preferably. In addition, below, a "multi-lumen tube mounting base" may be simply called a "mounting base." Since the positioning device 1 has the mounting table 50 having a plurality of insertion portions 51, the components having the abutting portions 20 on the mounting table 50 can be arranged at a plurality of predetermined positions. , a plurality of predetermined positions of the multi-lumen tube 100 can be determined accurately, and the productivity of the multi-lumen tube 100 processed at a plurality of locations can be improved.

As shown in FIG. 3, the mounting table 50 has a plurality of insertion portions 51 in the axial direction of the multi-lumen tube 100 when viewed from above. Preferably, the directions have only one receptacle 51 each. Since the mounting table 50 has only one insertion portion 51 in the direction perpendicular to the axial direction of the multi-lumen tube 100, the mounting table 50 is viewed from above and is perpendicular to the axial direction of the multi-lumen tube 100. When a plurality of core material holding parts 30 and processing parts 40 are provided in different directions, the positions of the core material holding parts 30 and processing parts 40 installed in the positioning device 1 do not match the positions of the erroneous insertion parts 51. It is possible to insert a component having the abutting portion 20 and prevent incorrect positioning and processing of the processing location of the multi-lumen tube 100 .

It is preferable that the plurality of insertion portions 51 have different shapes. In particular, it is more preferable that the opening shapes of the insertion portions 51 when viewed from above the mounting table 50 are different. Since the opening shapes of the insertion portions 51 when viewed from above the mounting table 50 are different from each other, the parts having the abutment portions 20 may be inserted into the wrong insertion portions 51 and may be misaligned in the axial direction of the multi-lumen tube 100. It is possible to prevent the processing from being performed on a position where the cutting edge is not located.

In order to make the shapes of the plurality of insertion portions 51 different, for example, at least one of the vertical and horizontal lengths of the opening shape of the insertion portions 51 viewed from above the mounting table 50 may be changed. For example, the shape of the opening 51 may be selected from convex polygons such as quadrilaterals and pentagons, concave polygons, regular polygons such as squares, circles, ellipses, and the like. In particular, it is preferable that the plurality of insertion portions 51 have different lengths in at least one of the length and width of the opening shape of the insertion portion 51 . Since at least one of the vertical and horizontal lengths of the opening shapes of the plurality of insertion portions 51 is different, all the insertion portions 51 can have different shapes while being simple.

The plurality of insertion portions 51 have different shapes, and there are a plurality of parts provided with the abutment portions 20 , and the shape of the part provided with each abutment portion 20 corresponds to the shape of each insertion portion 51 . preferably. Specifically, for example, as shown in FIG. 3 , the mounting table 50 has one rectangular insertion portion 51 and another rectangular insertion portion 51 narrower than the one insertion portion 51 . A part having one abutment part 20 having a shape that can be inserted into one insertion part 51 and another abutment part having a shape that can be inserted into the other insertion part 51 20, and the like. The positioning device 1 includes a plurality of insertion portions 51 having different shapes and a component having a plurality of abutment portions 20 corresponding to the respective insertion portions 51, so that the plurality of abutment portions 20 are provided. It is possible to prevent the parts from being inserted into the wrong insertion parts 51 respectively.

The mounting table 50 may be mounted by placing the multi-lumen tube 100 on the upper surface of the mounting table 50. However, the mounting table 50 is provided with a core member insertion space for inserting the first core member 11 and the second core member 12. It is preferable to mount the multi-lumen tube 100 by providing a space and inserting the multi-lumen tube 100 into this space. The mounting table 50 has a core material insertion space, and the multi-lumen tube 100 is stably mounted on the mounting table 50 by inserting the first core material 11 and the second core material 12 into the core material insertion space. Therefore, it is possible to prevent the multi-lumen tube 100 from being displaced from the mounting table 50 and the multi-lumen tube 100 from being removed from the mounting table 50 during processing of the multi-lumen tube 100 .

The core material insertion space is preferably a through hole provided in the mounting table 50 and extending along the axial direction of the multi-lumen tube 100 . That is, as shown in FIG. 3, the mounting table 50 preferably has a hole 52 through which the multi-lumen tube 100 is inserted. Moreover, it is preferable that the hole 52 and the insertion portion 51 communicate with each other. Since the mounting table 50 has a hole 52 through which the multi-lumen tube 100 is inserted, the mounting table 50 can easily mount the multi-lumen tube 100 without bending or meandering. It becomes possible to accurately determine the position to be processed.

The maximum inner diameter of the hole 52 is preferably 1.1 times or more the maximum outer diameter of the multi-lumen tube 100, more preferably 1.3 times or more, further preferably 1.5 times or more. . By setting the lower limit of the ratio between the maximum inner diameter of the hole 52 and the maximum outer diameter of the multi-lumen tube 100 as described above, the multi-lumen tube 100 can be easily inserted through the hole 52 . The maximum inner diameter of the hole 52 is preferably 3 times or less, more preferably 2.5 times or less, and even more preferably 2 times or less the maximum outer diameter of the multi-lumen tube 100 . By setting the upper limit of the ratio of the maximum inner diameter of the hole 52 and the maximum outer diameter of the multi-lumen tube 100 in this way, when the multi-lumen tube 100 is inserted through the hole 52, the hole 52 and the multi-lumen tube 100 will not be in contact with each other. The radial position of the multi-lumen tube 100 to be machined can be determined accurately without the gap occurring between them becoming too large.

The maximum inner diameters of the holes 52 may be constant in the extending direction of the holes 52, but are preferably different. That the maximum inner diameter of the hole 52 is different in the extending direction of the hole 52 means, for example, that the maximum inner diameter of the opening of the hole 52 is larger than the maximum inner diameter of the central portion of the hole 52 in the extending direction. mentioned. If the maximum inner diameter of the opening of the hole 52 is larger than the maximum inner diameter of the central portion in the extending direction of the hole 52, the multi-lumen tube 100 can be easily inserted into the hole 52 and the central portion in the extending direction of the hole 52 can be easily inserted. Since the gap between the multi-lumen tube 100 and the hole 52 is small in , it is possible to restrict the movement of the multi-lumen tube 100 in the radial direction.

As shown in FIG. 3, the holes 52 may have an outwardly widening taper at the opening. Since the hole 52 has a tapered portion at the opening, it becomes easier to insert the multi-lumen tube 100 into the hole 52 .

Although not shown, the mounting table 50 has rails arranged along the axial direction of the multi-lumen tube 100, and the component including the abutting portion 20 can be moved on the rails. preferable. Since the positioning device 1 has a rail on which the part including the abutting portion 20 can move, the axial position of the multi-lumen tube 100 can be accurately determined to various locations, and the abutment can be performed. It becomes possible to quickly change the position of the part comprising the part 20 .

A first method for manufacturing the processed multi-lumen tube 100 according to the embodiment of the present invention is a method for manufacturing the processed multi-lumen tube 100 using the positioning device 1. As shown in FIG. inserting the first core material 11; inserting the second core material 12 into the lumen farthest from the first lumen 110 in the cross section perpendicular to the axial direction of the multi-lumen tube 100; and a step of processing.

In the first manufacturing method of the processed multi-lumen tube 100 , first, the first core member 11 is inserted through the first lumen 110 of the multi-lumen tube 100 .

Next, the second core member 12 is inserted through the lumen farthest from the first lumen 110 in the cross section perpendicular to the axial direction of the multi-lumen tube 100 . By inserting the first core material 11 through the first lumen 110 and inserting the second core material 12 through the lumen farthest from the first lumen 110, the first core material 11 inserted through the multi-lumen tube 100 and the The distance from the second core member 12 can be increased. By separating the distance between the first core member 11 and the second core member 12, the movable range in the circumferential direction of the multi-lumen tube 100 arranged in the positioning device 1 can be restricted to be small, thereby effectively preventing misalignment. can.

To determine the lumen farthest from the first lumen 110, the distance between the outer edge of the first lumen 110 and the outer edges of the other lumens in a cross section perpendicular to the axial direction of the multi-lumen tube 100 can be measured. . In the multi-lumen tube 100 shown in FIG. 2, the second lumen 120 is the lumen farthest from the first lumen 110 .

Then, the multi-lumen tube 100 is processed. The processing applied to the multi-lumen tube 100 includes, for example, making holes, making cuts, printing on the outer surface of the multi-lumen tube 100, and changing the physical properties of a part of the multi-lumen tube 100 by heating. mentioned.

A second method for manufacturing the processed multi-lumen tube 100 according to the embodiment of the present invention is a method for manufacturing the processed multi-lumen tube 100 using the positioning device 1. As shown in FIG. , further has a third lumen 130, the first core 11 is arranged in the first lumen 110, the second core 12 is arranged in the second lumen 120, and no core is arranged in the third lumen 130. and a step of processing the multi-lumen tube 100 . In the description of the second manufacturing method of the processed multi-lumen tube 100 of the present invention, the description of the portions overlapping with the description of the first manufacturing method of the processed multi-lumen tube 100 of the present invention will be omitted.

As shown in FIG. 2, in the second manufacturing method of the processed multi-lumen tube 100, the multi-lumen tube 100 has at least a first lumen 110, a second lumen 120 and a third lumen . Note that the multi-lumen tube 100 may further have lumens different from the first lumen 110 , the second lumen 120 and the third lumen 130 .

In the second manufacturing method of the processed multi-lumen tube 100 of the present invention, the first core material 11 is arranged in the first lumen 110, the second core material 12 is arranged in the second lumen 120, and the core material is arranged in the third lumen 130. Do not place materials. That is, of the at least three lumens of the multi-lumen tube 100, two lumens are provided with core materials, but the remaining lumens are not provided with core materials. By disposing the first core material 11 in the first lumen 110 of the multi-lumen tube 100, disposing the second core material 12 in the second lumen 120, and not disposing the core material in the third lumen 130, the multi-lumen tube 100 The first and second cores 11 and 12 placed in the first and second lumens 110 and 120 of the multi-lumen tube 100 pierce the multi-lumen tube 100 while sufficiently restricting the axial rotation of the It exerts an effect that it becomes less likely to interfere with processing such as cutting and cutting.

As described above, the positioning device is a positioning device for a processing location of a multi-lumen tube having a first lumen and a second lumen, and includes a first core material arranged in the first lumen and a and a butting portion with which one end of the multi-lumen tube contacts. The positioning device has a first core member arranged in the first lumen, a second core member arranged in the second lumen, and an abutting portion with which one end of the multi-lumen tube contacts, so that the multi-lumen tube It is possible to quickly determine the position to be processed so that it is always the same, and increase the rigidity of the multi-lumen tube to improve the stability of processing, so the productivity of the processed multi-lumen tube can be improved. It becomes possible.

A first manufacturing method for a processed multi-lumen tube is a manufacturing method using a positioning device, comprising: inserting a first core material into a first lumen; , inserting the second core material into the lumen farthest from the first lumen, and processing the multi-lumen tube. A second manufacturing method of the processed multi-lumen tube is a manufacturing method using a positioning device, the multi-lumen tube further having a third lumen, disposing the first core material in the first lumen, A step of disposing a second core material in the second lumen and not disposing a core material in the third lumen, and a step of processing the multi-lumen tube. A method for manufacturing a processed multi-lumen tube includes the steps of inserting a first core material into a first lumen, inserting a second core material into a lumen farthest from the first lumen, and processing the multi-lumen tube. or placing the first core in the first lumen, placing the second core in the second lumen, and not placing the core in the third lumen, and processing the multi-lumen tube With this, it is possible to quickly and stably determine the processing position of the multi-lumen tube, so that the productivity of the processed multi-lumen tube can be improved.

1: Positioning device 2: Positioning part 11: First core material 12: Second core material 20: Abutment part 30: Core material holding part 31: Core material insertion part 40: Processing part 41: Cutlery 50: Mounted on multi-lumen tube Table 51: Insertion part 52: Hole 100: Multi-lumen tube 110: First lumen 120: Second lumen 130: Third lumen

Claims (11)

A processing location positioning device for a multi-lumen tube comprising a first lumen and a second lumen,
a first core material disposed within the first lumen;
a second core disposed within the second lumen;
an abutting portion with which one end of the multi-lumen tube contacts;
a core material holding part that holds at least one of the first core material and the second core material;
a processing unit including a blade for cutting the multi-lumen tube ,
The core material holding part has a core material insertion part through which the first core material and the second core material are inserted,
The extension direction of the core material insertion portion in the direction perpendicular to the axial direction of the multi-lumen tube is perpendicular to the axial direction of the multi-lumen tube and perpendicular to the traveling direction of the cutting tool. A positioning device for a processing location of a multi-lumen tube, characterized by: A processing location positioning device for a multi-lumen tube comprising a first lumen and a second lumen,
a first core material disposed within the first lumen;
a second core disposed within the second lumen;
an abutting portion with which one end of the multi-lumen tube contacts;
a core material holding part that holds at least one of the first core material and the second core material;
a processing unit including a blade for cutting the multi-lumen tube,
The core material holding part has a core material insertion part through which the first core material and the second core material are inserted,
A positioning device for a processing location of a multi-lumen tube, wherein a direction in which the core material insertion portion extends in a direction perpendicular to an axial direction of the multi-lumen tube is parallel to a moving direction of the cutting tool. 3. The device for positioning a processed portion of a multi-lumen tube according to claim 1, wherein the abutting portion and the core holding portion are integrally constructed. The multi-lumen tube positioning device according to any one of claims 1 to 3, further comprising a processing section for processing the multi-lumen tube. a core material holding part that holds at least one of the first core material and the second core material,
The multi-lumen tube positioning device according to any one of claims 1 to 4 , wherein the core holding part is rotatable in the axial direction of the multi-lumen tube. Having a multi-lumen tube mounting table on which the multi-lumen tube is mounted,
The multi-lumen tube processing location positioning device according to any one of claims 1 to 5 , wherein the multi-lumen tube mounting table has a plurality of insertion portions into which the component having the abutting portion is inserted. 7. The apparatus for positioning a processed portion of a multi-lumen tube according to claim 6 , wherein the plurality of insertion portions have different shapes. The multi-lumen tube mounting table has a hole through which the multi-lumen tube is inserted,
8. The apparatus for positioning a processed portion of a multi-lumen tube according to claim 6 or 7 , wherein said hole and said insertion portion communicate with each other. The multi-lumen tube mounting table has rails arranged along the axial direction of the multi-lumen tube,
The multi-lumen tube positioning device according to any one of claims 6 to 8 , wherein the part having the abutting portion is movable on the rail. A method for manufacturing a processed multi-lumen tube using the device for positioning a processed portion of a multi-lumen tube according to any one of claims 1 to 9 ,
inserting the first core material through the first lumen;
a step of inserting the second core material through a lumen farthest from the first lumen in a cross section perpendicular to the axial direction of the multi-lumen tube;
and a step of processing the multi-lumen tube. A method for manufacturing a processed multi-lumen tube using the device for positioning a processed portion of a multi-lumen tube according to any one of claims 1 to 9 ,
The multi-lumen tube further has a third lumen,
disposing the first core material in the first lumen, disposing the second core material in the second lumen, and not disposing the core material in the third lumen;
and a step of processing the multi-lumen tube.

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