Catheter manufacturing system and catheter manufacturing method

Abstract

The present invention provides a catheter manufacturing system and a catheter manufacturing method. The catheter manufacturing system may comprise: a support jig in which a catheter body is placed; a drive unit connected to the support jig and transmitting a driving force to the catheter body; a processing unit having an optical module that irradiates a laser onto the catheter body, and forming a groove on an outer circumferential surface of the catheter body; and a controller controlling at least one of the drive unit and the processing unit so that the optical module irradiates the laser onto the catheter body in a preset pattern.

Description

Catheter manufacturing system and catheter manufacturing method

[0001] The present invention relates to a catheter manufacturing system and a catheter manufacturing method.

[0002] Urine excreted from the kidneys is transported through the ureters to the bladder and then expelled from the body through the urethra. However, if a patient has difficulty urinating voluntarily, a flexible tube, such as a catheter, is inserted through the urethra into the bladder to facilitate drainage.

[0003] Additionally, to prevent bacterial contamination due to catheter insertion or when local anesthesia is required, antibiotics or local anesthetics can be injected externally through the catheter and supplied to the bladder or urethra.

[0004] The purpose of the present invention is to provide a catheter manufacturing system and a catheter manufacturing method that form a groove by irradiating a laser on the surface of a catheter.

[0005] One aspect of the present invention provides a catheter manufacturing system, comprising: a support jig on which a catheter body is placed; a driving unit connected to the support jig to transmit a driving force to the catheter body; an optical module that irradiates a laser to the catheter body; a processing unit that forms a groove on an outer surface of the catheter body; and a controller that controls at least one of the driving unit and the processing unit so that the optical module irradiates the laser to the catheter body in a preset pattern.

[0006] A catheter manufacturing system and a catheter manufacturing method according to one embodiment of the present invention can precisely process a groove in which a drug solution is dispersed by irradiating a laser on the surface of a catheter body in a preset pattern.

[0007] Figure 1 is a conceptual drawing showing a state of use of a poly catheter according to one embodiment of the present invention.

[0008] Fig. 2 is a perspective view illustrating the poly catheter of Fig. 1.

[0009] Figure 3 is a drawing showing a modified example of the poly catheter of Figure 2.

[0010] Figure 4 is a drawing showing an enlarged cross-section of a portion of the poly catheter of Figure 2.

[0011] Figure 5 is an enlarged view of one end of the poly catheter of Figure 2.

[0012] Figure 6 is a drawing showing the fluid flowing in the poly catheter of Figure 2.

[0013] FIG. 7 is a drawing showing a flow path provided by a poly catheter according to another embodiment of the present invention.

[0014] Figure 8 is an enlarged view of the cross-section of the poly catheter shown in Figure 4.

[0015] Figure 9 is a drawing showing another embodiment of a drug solution groove provided in the poly catheter of the present invention.

[0016] FIG. 10 is a schematic diagram illustrating a catheter manufacturing system according to one embodiment of the present invention.

[0017] Fig. 11 is a conceptual diagram showing the detailed configuration of the catheter manufacturing system of Fig. 10.

[0018] Figure 12 is a drawing showing the path of the laser irradiated on the catheter body of Figure 11.

[0019] Figures 13 and 14 are drawings showing examples of laser patterns irradiated onto a catheter body in the processing unit of Figure 11.

[0020] Figure 15 is a conceptual diagram showing a state in which a laser is irradiated to a catheter body in a processing unit according to another embodiment of the present invention.

[0021] Figure 16 is a drawing showing a state in which the fixed pin of Figure 11 is coupled to the catheter body.

[0022] Figure 17 is an enlarged view of one end of the catheter body and a part of the fixing pin of Figure 16.

[0023] Figure 18 is a drawing showing a state in which expansion gas is injected into the catheter body of Figure 16.

[0024] Figures 19 to 21 are flowcharts showing a catheter manufacturing method according to one embodiment of the present invention.

[0025] One aspect of the present invention provides a catheter manufacturing system, comprising: a support jig on which a catheter body is placed; a driving unit connected to the support jig to transmit a driving force to the catheter body; an optical module that irradiates a laser to the catheter body; a processing unit that forms a groove on an outer surface of the catheter body; and a controller that controls at least one of the driving unit and the processing unit so that the optical module irradiates the laser to the catheter body in a preset pattern.

[0026] Additionally, the controller can control the driving unit so that the catheter body rotates and moves linearly in one direction when the optical module irradiates the catheter body with the laser.

[0027] Additionally, the controller can control the processing unit to irradiate the laser in a ring pattern onto the catheter body.

[0028] Additionally, the controller can control the processing unit so that the laser passing through the optical module is irradiated onto the outer surface of the catheter body at a predetermined interval.

[0029] Additionally, the optical module may include a lens unit that guides the laser to be irradiated in a ring pattern onto the outer surface of the catheter body.

[0030] Another aspect of the present invention may include a step of placing a catheter body on a support jig, and a step of irradiating a laser from a light source unit to the catheter body in a preset pattern to form a groove on an outer surface of the catheter body.

[0031] In addition, the step of forming the groove may include a step of aligning the position of the light source unit adjacent to the support jig, a step of linearly moving the catheter body placed on the support jig in one direction while rotating it, and a step of irradiating the catheter body with the laser from the light source unit through an optical module.

[0032] In addition, the step of linearly moving the catheter body may determine the rotational speed and linear movement speed of the catheter body by considering at least one of the intensity of the laser irradiated to the catheter body and the irradiation cycle of the laser.

[0033] The configuration and operation of the present invention will be described in detail with reference to embodiments of the present invention illustrated in the attached drawings below.

[0034] The present invention is capable of various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, as well as the methods for achieving them, will become clearer with reference to the embodiments described in detail below, along with the drawings. However, the present invention is not limited to the embodiments disclosed below and can be implemented in various forms.

[0035] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same drawing reference numerals, and redundant descriptions thereof will be omitted.

[0036] In the examples below, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0037] In the examples below, terms such as “include” or “have” mean that a feature or component described in the specification is present, and do not preclude the possibility that one or more other features or components may be added.

[0038] In some embodiments, where implementations are otherwise feasible, specific process sequences may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously, or in a reverse order from the described order.

[0039] For convenience of explanation, the sizes of components in the drawings may be exaggerated or reduced. For example, the sizes and thicknesses of each component shown in the drawings are arbitrarily indicated for convenience of explanation, and thus the following embodiments are not necessarily limited to those shown.

[0040] In the drawing of the present invention, the first direction (DR1) of the three-axis coordinate system corresponds to the longitudinal direction in which the poly catheter extends, and the second direction (DR2) and the third direction (DR3) intersecting the second direction (DR2) may correspond to the radial direction of the poly catheter orthogonal to the first direction (DR1).

[0041] Fig. 1 is a conceptual diagram illustrating a state of use of a poly catheter (10) according to one embodiment of the present invention. Fig. 2 is a perspective view illustrating the poly catheter (10) of Fig. 1 as an example, and Fig. 3 is a diagram illustrating a modified example of the poly catheter (10) of Fig. 2.

[0042] Referring to FIGS. 1 to 3, a poly catheter (10) can be inserted into the bladder (BD) and urethra (UR). Urine (UL), medication (ML), and air (AG) can flow through the poly catheter (10).

[0043] In detail, urine (UL) can be discharged outside the patient's body through the poly catheter (10). In addition, a drug solution (ML) can be injected into the patient's bladder (BD) and / or urethra (UR) through the poly catheter (10). At this time, the drug solution (ML) can be any type of substance that can be injected into the patient's body, such as a local anesthetic, a bladder (BD) cleanser, etc. In addition, air (AG) can be introduced through the poly catheter (10), thereby inflating and fixing the inflation balloon (200) inside the bladder (BD).

[0044] A poly catheter (10) may be provided with a catheter body (100) and an inflation balloon (200).

[0045] The catheter body (100) may be provided in a tube shape by extending in one direction. The catheter body (100) may extend in a first direction (DR1) and may have a hollow interior.

[0046] The catheter body (100) may be made of a flexible material. For example, the catheter body (100) may include silicone. The catheter body (100) is provided with flexibility, so that it can be smoothly inserted into the body.

[0047] The catheter body (100) may have one or more hollow spaces (not shown) within it. For example, the catheter body (100) may have three hollow spaces, through which urine (UL), a drug solution (ML), and air (AG) may flow. The three hollow spaces provided in the catheter body (100) may be defined as the first to third flow paths, respectively, as described below.

[0048] Urine (UL) can be discharged from the patient's body through the catheter body (100). Furthermore, a drug solution (ML) can be injected through the catheter body (100) and delivered to the patient's bladder and urethra. Furthermore, air (AG) can be introduced through the catheter body (100) to inflate and secure the inflation balloon (200) within the bladder (BD).

[0049] The catheter body (100) may have a drug dispersing portion (110). The drug dispersing portion (110) is defined as an area in which a drug (ML) can be dispersed externally from the catheter body (100). A drug groove (MG) for drug dispersing may be arranged in the drug dispersing portion (110).

[0050] The drug dispersing unit (110) can be positioned adjacent to the expansion balloon (200). The drug dispersing unit (110) is positioned relatively adjacent to one end (101) of the catheter body (100), so that when the poly catheter (10) is inserted into the patient's body, the drug dispersing unit (110) can be positioned inside the urethra (UR).

[0051] In one embodiment, the length of the drug dispersing portion (110) may be selected in consideration of the length of the urethra (UR). For example, the length of the drug dispersing portion (110) may be formed to be shorter than the length of the urethra (UR), so that the drug can be efficiently dispersed within the urethra (UR).

[0052] The drug dispersing portion (110) is positioned adjacent to one end (101) of the catheter body (100), and may be formed relatively long, as in FIG. 2. Alternatively, as in FIG. 3, the poly catheter (10A) may have a relatively short drug dispersing portion (110A).

[0053] The length of a patient's urethra (UR) varies, and especially considering the anatomy of men and women, the length of a woman's urethra (UR) is generally shorter than that of a man's. Therefore, in the embodiment in which the length of the drug dispersing portion (110A) is relatively short, as shown in FIG. 3, the poly catheter (10A) can be effectively used in female patients with relatively short urethra (UR).

[0054] In this way, the catheter body (100) is provided with a drug dispersing section (110) considering the length of the urethra (UR), so that the drug (ML) can be stably and economically distributed into the patient's urethra (UR).

[0055] An inflation balloon (200) may be placed at one end of the catheter body (100). The inflation balloon (200) may be placed a predetermined distance from one end (101) of the catheter body (100). When the poly catheter (10) is inserted into the patient's body, the inflation balloon (200) may be placed inside the bladder (BD).

[0056] The poly catheter (10) may further include a urination port (300), a drug injection port (400), and an air injection port (500).

[0057] The urinary port (300) can provide a passage for draining urine (UL) from the patient's bladder (BD).

[0058] The drug injection port (400) can provide a passage for injecting a drug (ML) such as a local anesthetic, bladder (BD) cleanser, etc. into the bladder (BD) and / or urethra (UR). The drug injection port (400) can be connected to a drug supply unit (not shown) to receive the drug (ML).

[0059] For example, although not shown in the drawing, the drug injection port (400) can receive the drug (ML) from the drug (ML) supply tank. In addition, the drug (ML) can be injected into the interior of the poly catheter (10) at a preset flow rate under pressure from the drug supply pump.

[0060] The air injection port (500) may provide a passage through which air (AG) is introduced to inflate the inflation balloon (200). The air injection port (500) may be connected to an air supply unit (not shown) to receive air (AG). For example, the air injection port (500) may be connected to an air pump of the air supply unit to receive air (AG) at a predetermined pressure.

[0061] The urination port (300), the liquid injection port (400), and the air injection port (500) are connected to the other end of the catheter body (100) and can provide a connection passage through which fluid flows into or out of the catheter body (100).

[0062] FIGS. 2 and 3 illustrate an embodiment in which a urination port (300), a liquid injection port (400), and an air injection port (500) are each provided, but the present invention is not limited thereto, and each port may be provided in multiple numbers depending on the number of hollow ports provided in the catheter body (100), etc.

[0063] Fig. 4 is a drawing showing an enlarged portion of a section of the poly catheter (10) of Fig. 2, and Fig. 5 is a drawing showing an enlarged portion of one end of the poly catheter (10) of Fig. 2. In addition, Fig. 6 is a drawing showing a fluid flowing in the poly catheter (10) of Fig. 2.

[0064] Referring to FIGS. 4 to 6, the poly catheter (10) may have a first flow path (FP1), a second flow path (FP2), and a third flow path (FP3).

[0065] The first flow path (FP1) penetrates the catheter body (100) and allows urine (UL) to flow. Urine (UL) can be discharged outside the patient's body through the first flow path (FP1).

[0066] The first flow path (FP1) may be connected to the first opening (FH1) of the catheter body (100). In addition, the first flow path (FP1) may be connected to a third opening (FH3) in the catheter body (100) that is open in a different direction from the first opening (FH1). That is, urine (UL) flows into the first flow path (FP1) from two or more directions at one end (101) of the catheter body (100), thereby allowing urine inside the bladder (BD) to be discharged quickly and effectively.

[0067] The first flow path (FP1) may be positioned at the center of the catheter body (100). As shown in FIG. 4, the first flow path (FP1) may penetrate the center of the catheter body (100) and may have a relatively large cross-sectional area compared to the second flow path (FP2) and the third flow path (FP3). This allows the poly catheter (10) to discharge a relatively large amount of urine (UL) to the outside.

[0068] The second flow path (FP2) penetrates the catheter body (100) and allows the drug solution (ML) to flow. The drug solution (ML) can be injected into the patient's body through the second flow path (FP2).

[0069] In one embodiment, the second flow path (FP2) may be connected to the second opening (FH2) of the catheter body (100). The drug solution (ML) may flow along the second flow path (FP2) and flow out into the bladder (BD) through the second opening (FH2) of one end (101) of the catheter body (100). Also, although not shown in the drawing, similar to the first flow path (FP1), the second flow path (FP2) may be connected to a separate opening that opens in a different direction from the second opening (FH2).

[0070] In another embodiment, unlike FIG. 5, the second flow path (FP2) may be provided in a form that extends in the first direction (DR1) but has a closed end. That is, the catheter body (100) may only have a first opening (FH1) and / or a third opening (FH3) through which urine (UL) flows at one end (101). In this case, the drug (ML) flowing through the second flow path (FP2) can only flow out to the urethra (UR).

[0071] The second flow path (FP2) may be positioned on one side of the first flow path (FP1). When the first flow path (FP1) is positioned in the center of the catheter body (100) as in Fig. 4, the second flow path (FP2) may penetrate the catheter body (100) from one side of the first flow path (FP1).

[0072] That is, the second flow path (FP2) can be placed relatively at the edge region on the cross-section of the catheter body (100). As a result, the drug solution (ML) can be quickly dispersed outside the catheter body (100) as the drug solution groove (MG) described later is relatively short connected to the second flow path (FP2).

[0073] The third flow path (FP3) penetrates the catheter body (100) and allows air (AG) to flow. Air (AG) is injected into the inflation balloon (200) through the third flow path (FP3), allowing the inflation balloon (200) to expand.

[0074] The third flow path (FP3) may be positioned on the other side of the first flow path (FP1). As shown in FIG. 4, when the first flow path (FP1) is positioned in the center of the catheter body (100), the third flow path (FP3) may penetrate the catheter body (100) from the other side of the first flow path (FP1). That is, the first flow path (FP1) may be positioned between the second flow path (FP2) and the third flow path (FP3). In addition, the third flow path (FP3) may be positioned relatively in the edge region on the cross-section of the catheter body (100).

[0075] In other words, a first flow path (FP1) having a relatively large cross-sectional area may be placed in the center of the catheter body (100), and a second flow path (FP2) and a third flow path (FP3) may be placed on one side and the other side of the first flow path (FP1), respectively. Through this, three flow paths may be efficiently placed in a catheter body (100) having a small cross-sectional area.

[0076] The arrangement, number, cross-sectional shape, cross-sectional area, etc. of the first flow path (FP1) to the third flow path (FP3) of the poly catheter (10) can be selected in various ways.

[0077] Since the catheter body (100) has a small cross-sectional area for insertion into the urethra (UR), the arrangement, shape, etc. of the first flow path (FP1) to the third flow path (FP3) provided within the catheter body (100) can be selected in consideration of this. In addition, the arrangement, shape, etc. of the first flow path (FP1) to the third flow path (FP3) can be determined according to the amount, speed, etc. of the fluid flowing through the poly catheter (10).

[0078] FIG. 7 is a drawing showing a flow path provided by a poly catheter (10') according to another embodiment of the present invention.

[0079] Referring to Fig. 7, the poly catheter (10') may be provided with two third flow paths (FP3'). Also, although not shown in the drawing, a first flow path (FP1') and a second flow path (FP2') may be provided in multiple numbers, depending on the flow rate and speed of urine (UL) and drug solution (ML), respectively.

[0080] Also, Fig. 7 shows an embodiment in which the first flow path (FP1') has a rectangular cross-section and the second flow path (FP2') is arranged on one side of the first flow path (FP1') but has a roughly elliptical cross-section.

[0081] Meanwhile, for convenience of explanation, the following description focuses on an embodiment in which the first euro (FP1) to the third euro (FP3) are provided in the arrangement and form shown in Fig. 4.

[0082] Referring again to FIG. 4, the poly catheter (10) may further include a drug solution groove (MG) and a drug solution outlet (MH).

[0083] The liquid groove (MG) may be arranged on the outer surface of the catheter body (100). The liquid groove (MG) is formed in a concave groove shape on the outer surface of the catheter body (100), thereby providing a path for the fluid to flow.

[0084] The liquid medicine groove (MG) is connected to the second flow path (FP2) so that the liquid medicine (ML) can flow. The liquid medicine groove (MG) is connected to the second flow path (FP2) through the liquid medicine outlet (MH), and the liquid medicine (ML) flowing within the second flow path (FP2) can flow out into the liquid medicine groove (MG) through the liquid medicine outlet (MH). Therefore, the liquid medicine groove (MG) can function as a separate flow path through which the liquid medicine (ML) flows on the surface of the catheter body (100).

[0085] The drug solution groove (MG) may be positioned in the drug solution dispersing portion (110) of the catheter body (100). As described above, the drug solution dispersing portion (110) of the catheter body (100) may be inserted into the urethra (UR) connected to the bladder (BD) adjacent to the inflation balloon (200). The drug solution groove (MG) is formed in the drug solution dispersing portion (110) of the catheter body (100), so that the drug solution (ML) flowing along the drug solution groove (MG) may be dispersed within the urethra (UR).

[0086] The liquid groove (MG) may extend in a spiral shape from the outer surface of the catheter body (100). The liquid groove (MG) may be formed in a spiral shape and may be provided as a single flow path extending from the catheter body (100) toward the expansion balloon (200). Through this, the liquid (ML) may flow from the liquid groove (MG) toward the expansion balloon (200) and be distributed within the urethra (UR).

[0087] The liquid outlet (MH) extends from the second flow path (FP2) and is connected to the liquid groove (MG), through which the liquid (ML) can flow. The liquid outlet (MH) is formed as a hole connecting the second flow path (FP2) and the liquid groove (MG), through which the liquid (ML) can flow. In particular, when the liquid (ML) flows at a predetermined flow rate in the second flow path (FP2), the liquid (ML) can flow out through the liquid outlet (MH) due to pressure.

[0088] In one embodiment, the poly catheter (10) may be provided with a plurality of drug outlets (MH). The plurality of drug outlets (MH) are spaced apart from each other so that the drug (ML) can be evenly distributed throughout the entire area of ​​the urethra (UR).

[0089] For example, multiple drug outlets (MH) may be spaced apart along an imaginary straight line. Alternatively, multiple drug outlets (MH) may be spaced apart along an imaginary spiral. Furthermore, the spacing (HL) between adjacent drug outlets (MH) may be constant or different.

[0090] That is, the arrangement of the liquid outlet (MH) can be varied depending on the purpose of injection of the liquid (ML), the target area for distribution, etc.

[0091] In one embodiment, the drug outlet (MH) may be positioned so as to form a predetermined angle with respect to the flow direction of the drug (ML) within the second flow path (FP2). For example, as shown in FIG. 6, when the drug (ML) moves in the first direction (DR1) within the second flow path (FP2), the drug outlet (MH) may be formed to extend in a third direction (DR3) perpendicular to the first direction (DR1). This allows the drug (ML) to effectively flow out to the outer surface of the catheter body (100).

[0092] Hereinafter, the specific shapes, sizes, etc. of the first flow path (FP1) to the third flow path (FP3), the drug groove (MG) and the drug outlet (MH) of the poly catheter (10) of the present invention, and the distribution principle of the drug (ML) according to these, will be described in detail.

[0093] Figure 8 is an enlarged view of the cross-section of the poly catheter (10) shown in Figure 4.

[0094] Referring to FIG. 8, the first euro (FP1) may have a first bend (IC) and a second bend (OC).

[0095] The first bend (IC) is defined as an area that is bent inward from the first flow path (FP1), i.e., toward the center of the catheter body (100). The first flow path (FP1) may have a pair of first bends (IC), and the first bends (IC) may be bent inward between the second flow path (FP2) and the third flow path (FP3).

[0096] In one embodiment, the radius of curvature of the first bend (IC) may be substantially equal to or greater than the radius of curvature of the second flow path (FP2). Similarly, the radius of curvature of the first bend (IC) may be substantially equal to or greater than the radius of curvature of the third flow path (FP3). Furthermore, the first bend (IC) may have a constant radius of curvature, or the radius of curvature may vary.

[0097] The second bend (OC) is defined as an area that curves outward from the first flow path (FP1), i.e., toward the edge of the catheter body (100). The first flow path (FP1) may have a pair of second bends (OC) connecting a pair of first bends (IC).

[0098] In one embodiment, the curvature of the second bend (OC) may be substantially equal to or greater than the radius of curvature of the catheter body (100). Additionally, the second bend (OC) may have a constant radius of curvature or may have a variable radius of curvature.

[0099] As described above, the first flow path (FP1) is arranged between the second flow path (FP2) and the third flow path (FP3), and urine (UL) can flow. The amount of urine (UL) flowing through the poly catheter (10) of the present invention may be relatively large compared to the amount of liquid (ML) or air (AG). Therefore, the first flow path (FP1) can be provided in an optimal shape that can be efficiently arranged together with the second flow path (FP2) and the third flow path (FP3) in a small-sized catheter body (100) while effectively urinating a large amount of urine (UL).

[0100] The liquid groove (MG) may have a groove surface (GW) and a side wall portion (SW). The groove surface (GW) may be defined as the bottom surface of the liquid groove (MG) that is concave on the outer surface of the catheter body (100). In addition, the side wall portion (SW) may be defined as the side surface of the groove surface (GW) and the area connecting the groove surface (GW) and the outer surface of the catheter body (100).

[0101] In one embodiment, the side wall portion (SW) may be formed to be inclined. The liquid groove (MG) has a side wall portion (SW) having a predetermined inclination angle (GA), so that the liquid (ML) can effectively flow out to the outside.

[0102] In one embodiment, the inclination angle (GA) of the side wall portion (SW) may be less than 90 degrees.

[0103] When the side wall (SW) is formed perpendicular to the groove surface (GW) and the outer surface, the drug (ML) may not be smoothly distributed to the outside of the drug groove (MG). In addition, when the boundary between the side wall (SW) and the outer surface is defined as the boundary (BA), the boundary (BA) may be formed sharply, which may damage the urethra (UR).

[0104] Meanwhile, the poly catheter (10) of the present invention has a side wall (SW) with an inclination angle (GA) of 90 degrees or less, thereby preventing damage to the urethra (UR) and allowing the drug solution (ML) to be effectively distributed.

[0105] Figure 9 is a drawing showing another embodiment of a liquid groove (MG) provided in a poly catheter (10) of the present invention.

[0106] Referring to Fig. 9, the liquid groove (MG) may have a depression (DP). The depression (DP) may be formed by a portion of the groove surface (GW) of the liquid groove (MG) being depressed.

[0107] The poly catheter (10) has a depression (DP) in the drug solution groove (MG), so that the speed and amount of drug solution (ML) dispersion within the urethra (UR) can be controlled. Fig. 9 shows an example in which a depression (DP) is formed in the area where the groove surface (GW) and the side wall portion (SW) are connected.

[0108] In one embodiment, the depression (DP) may have a curvature. As shown in FIG. 9, the depression (DP) is formed as a curved surface, so that the drug (ML) can be smoothly distributed to the outside of the drug groove (MG).

[0109] In one embodiment, the depression depth (DH) of the depression (DP) may be within 1.3 times the depth (GH) of the groove surface (GW). If the depression depth (DH) of the depression (DP) is excessively large, some of the drug (ML) that is required to be dispersed within the urethra (UR) may not be dispersed and may remain in the depression (DP). Therefore, the depression depth (DH) of the depression (DP) is selected within a predetermined range depending on the physical properties of the drug (ML), particularly the density, viscosity, etc., so that the degree of dispersion of the drug (ML) can be effectively controlled.

[0110] The liquid outlet (MH) can connect the second flow path (FP2) and the liquid groove (MG). The liquid outlet (MH) extends from the second flow path (FP2) and can have various cross-sectional shapes. For example, the liquid outlet (MH) can have a circular cross-section.

[0111] The size of the liquid outlet (MH) can be determined within a range in which the liquid (ML) can flow out through the liquid outlet (MH).

[0112] In one embodiment, the diameter (HD) of the liquid outlet (MH) can be determined by at least one of the extended length (HH) of the liquid outlet (MH), the supply pressure of the liquid (ML), and the cross-sectional area of ​​the second flow path (FP2).

[0113] The drug solution outlet (MH) can function as a path for discharging the drug solution (ML) to the outside of the catheter body (100). Whether the drug solution (ML) flows out of the drug solution outlet (MH) can vary depending on the balance of forces applied to the drug solution (ML) flowing into the drug solution outlet (MH).

[0114] In detail, when the chemical liquid (ML) flows into the chemical liquid outlet (MH), if the force pushing the chemical liquid (ML) from the second flow path (FP2) to the chemical liquid outlet (MH) is greater than the surface tension of the chemical liquid (ML) at the chemical liquid outlet (MH), the chemical liquid (ML) can flow out of the chemical liquid outlet (MH).

[0115] In a natural state where the drug liquid (ML) does not flow in the second flow path (FP2), the force pushing the drug liquid (ML) out of the second flow path (FP2) and the drug liquid outlet (MH) may be equal to the sum of the pressure (e.g., hydrostatic pressure) of the drug liquid (ML) inside the drug liquid outlet (MH), the surface tension of the drug liquid (ML) at the drug liquid outlet (MH), and the external pressure (e.g., atmospheric pressure).

[0116] At this time, the pressure of the chemical liquid (ML) can be determined according to the extension length (HH) of the chemical liquid outlet (MH). In addition, the surface tension of the chemical liquid (ML) at the chemical liquid outlet (MH) can be determined according to the diameter (HD) of the chemical liquid outlet (MH).

[0117] Therefore, whether or not the drug solution (ML) flows out in a natural state can be determined by the diameter (HD) and extension length (HH) of the drug solution outlet (MH). Additionally, whether or not the drug solution (ML) flows out can also be determined by the density, viscosity, friction, etc. of the drug solution (ML).

[0118] Meanwhile, as described above, when the chemical liquid (ML) flows through the second flow path (FP2) at a predetermined flow rate by the chemical liquid supply pump (not shown), the force pushing the chemical liquid (ML) from the second flow path (FP2) to the chemical liquid outlet (MH) may vary based on the natural state. The flow rate of the chemical liquid (ML) may be determined by the supply pressure applied to the chemical liquid (ML) by the chemical liquid supply pump, the cross-sectional area of ​​the second flow path (FP2), etc.

[0119] In summary, whether or not the drug solution (ML) flows out can vary depending on the diameter (HD) of the drug solution outlet (MH), the extended length (HH) of the drug solution outlet (MH), the supply pressure of the drug solution (ML), the cross-sectional area of ​​the second flow path (FP2), etc. Accordingly, the diameter (HD) of the drug solution outlet (MH) of the poly catheter (10) of the present invention can be determined by comprehensively considering the extended length (HH) of the drug solution outlet (MH), the supply pressure of the drug solution (ML), the cross-sectional shape of the second flow path (FP2), the cross-sectional area, etc.

[0120] In one embodiment, the diameter (HD) of the liquid outlet (MH) may have a predetermined ratio to the diameter of the second flow path (FP2).

[0121] In detail, when the drug outlet (MH) connects the second flow path (FP2) and the drug groove (MG), the extension length (HH) can be determined as a fixed value. At this time, for a typical range of supply pressure of the drug (ML) injected through the poly catheter (10), the diameter (HD) of the drug outlet (MH) can be selected within a predetermined range depending on the cross-sectional area of ​​the second flow path (FP2).

[0122] For example, if the second flow path (FP2) has a circular cross-section with a diameter of 1 mm, the diameter (HD) of the liquid outlet (MH) may be 0.03 mm to 0.3 mm. On the other hand, if the cross-section of the second flow path (FP2) is not circular but polygonal, the diameter (HD) of the liquid outlet (MH) may be 0.03 to 0.3 times the effective diameter of the second flow path (FP2).

[0123] In this way, the poly catheter (10) can be provided with the first flow path (FP1) to the third flow path (FP3) in a shape, arrangement, and size that can smoothly discharge urine (UL) and inject a medicinal solution (ML). In addition, the depth (GH) and shape of the medicinal solution groove (MG), the diameter (HD) of the medicinal solution outlet (MH), etc. can be determined within an optimal range that allows the medicinal solution (ML) to be effectively distributed to the outside of the catheter body (100).

[0124] According to one embodiment of the present invention, a poly catheter has a concave groove formed on the outer surface of the drug solution, which is connected to an internal flow path for the drug solution and a drug solution outlet, so that the drug solution can be effectively distributed into the urethra along the drug solution groove. According to one embodiment of the present invention, the poly catheter has a slanted side wall portion of the drug solution groove, so that damage during urethral insertion can be minimized. In addition, according to one embodiment of the present invention, a drug solution outlet having a predetermined size range can be provided, so that the drug solution can be effectively distributed into the urethra.

[0125] Hereinafter, a catheter manufacturing system and a catheter manufacturing method according to one embodiment of the present invention will be described.

[0126] In particular, a poly catheter manufactured using a catheter manufacturing system and a catheter manufacturing method according to an embodiment of the present invention may have a groove on the outer surface of the catheter body through which a drug solution can flow. The detailed configuration, shape, function, etc. of a poly catheter manufactured using a catheter manufacturing system and a catheter manufacturing method according to an embodiment of the present invention will be described with reference to the above-described contents with reference to FIGS. 1 to 9.

[0127] FIG. 10 is a schematic diagram showing a catheter manufacturing system (1000) according to one embodiment of the present invention, and FIG. 11 is a conceptual diagram showing a detailed configuration of the catheter manufacturing system (1000) of FIG. 10.

[0128] Referring to FIGS. 10 and 11, the catheter manufacturing system (1000) may include a support jig (1100), a driving unit (1200), a processing unit (1300), and a controller (1400).

[0129] The support jig (1100) can support the catheter body (100). The catheter body (100) can be positioned on the support jig (1100) to be rotatable or linearly movable.

[0130] Although not specifically shown in FIG. 11, the support jig (1100) may be provided in any structure or shape capable of supporting the catheter body (100), and the support jig (1100) may be provided with various parts such as a clamp and a rotating shaft.

[0131] For example, the support jig (1100) may hold both sides of the catheter body (100), but the support jig (1100) and the catheter body (100) may rotate or move linearly together. Alternatively, the support jig (1100) may be connected to the catheter body (100) while its position is fixed, so that only the catheter body (100) may rotate or move linearly.

[0132] In one embodiment, the support jig (1100) can support a catheter body (100) to which a fixing pin (CP) is coupled. The fixing pin (CP) can be coupled to the catheter body (100) by a coupling unit (1500) to be described later, and the catheter body (100) can be placed on the support jig (1100) while coupled to the fixing pin (CP) and can rotate or move linearly.

[0133] The driving unit (1200) is connected to the support jig (1100) and can transmit driving force to the catheter body (100).

[0134] When a laser (LA) is irradiated onto the catheter body (100), the catheter body (100) can rotate and / or move linearly, resulting in the formation of a spiral groove (MG) on the surface. At this time, the driving unit (1200) can provide a driving force for the catheter body (100) to rotate and move linearly.

[0135] The driving unit (1200) can directly transmit driving force to the catheter body (100) to rotate and linearly move the catheter body (100). Alternatively, when the catheter body (100) is coupled to a fixed pin (CP) and placed on a support jig (1100), the driving unit (1200) can also rotate and linearly move the catheter body (100) by providing driving force to the fixed pin (CP).

[0136] Although not shown in the drawing, the drive unit (1200) may include a motor, an actuator, a cylinder, etc. That is, the method by which the drive unit (1200) provides driving force to the catheter body (100) is not particularly limited. In addition, the drive unit (1200) may have all the components necessary to control the driving force provided to the catheter body (100), such as a shaft, a pulley, a bearing, etc.

[0137] The processing unit (1300) can form a groove (MG) on the outer surface of the catheter body (100). The processing unit (1300) can process a concave groove (MG) on the outer surface of the catheter body (100) by irradiating the catheter body (100) with a laser (LA). The groove (MG) corresponds to the liquid medicine groove (MG) described above in FIG. 2 and the like, and the liquid medicine flowing inside the catheter body (100) can flow out and be dispersed through the groove (MG).

[0138] The processing unit (1300) may be equipped with an optical module (1310) and a light source unit (SC).

[0139] The optical module (1310) can process the surface of the catheter body (100) by irradiating the catheter body (100) with a laser (LA). The laser (LA) can pass through the optical module (1310) and be irradiated onto the catheter body (100).

[0140] In detail, a poly catheter is inserted into the body and is designed to be flexible, and may be made of a relatively soft material such as silicone.

[0141] In addition, since the groove (MG) of the poly catheter has a microscopic size, it can be processed more precisely by a cutting method using a laser (LA) compared to a cutting method that applies mechanical force such as milling or drilling.

[0142] Accordingly, the processing unit (1300) can precisely form a fine groove (MG) by irradiating the outer surface of the catheter body (100) with a laser (LA) through the optical module (1310).

[0143] The light source unit (SC) can function as a light source for a laser (LA) that passes through the optical module (1310).

[0144] In one embodiment, the pulse width of the laser (LA) irradiated from the light source unit (SC) to the catheter body (100) may be smaller than a reference value. For example, the light source unit (SC) may irradiate the catheter body (100) with a laser (LA) having a pulse width of 10 ns or less.

[0145] When cutting a soft catheter body (100) by irradiating it with a laser (LA), unnecessary deformation of the catheter body (100) may occur due to heat. Therefore, the light source unit (SC) irradiates the catheter body (100) with a laser (LA) having a pulse width below a reference value, thereby effectively forming a fine groove (MG) while maintaining the shape of the catheter body (100).

[0146] The wavelength of the laser (LA) irradiated by the light source (SC) can also be appropriately selected. For example, the light source (SC) can select the wavelength of the laser (LA) as 1064 nm, 532 nm, 355 nm, 343 nm, 266 nm, etc.

[0147] In one embodiment, the processing unit (1300) may further include a rotation module (not shown). The rotation module (not shown) is connected to the light source unit (SC) and can control the rotation of the laser (LA) irradiated from the light source unit (SC). The laser (LA) passes through the optical module (1310) by the rotation module (not shown) and can have a predetermined pattern, and as a result, the laser (LA) is uniformly irradiated to the target area so that a groove (MG) can be processed.

[0148] The controller (1400) can control at least one of the driving unit (1200) and the processing unit (1300).

[0149] The controller (1400) is connected to the driving unit (1200) and can control the catheter body (100) to rotate and move linearly. As the catheter body (100) is driven, a laser pattern (LP) can be extended and formed on the outer surface of the catheter body (100).

[0150] Fig. 12 is a drawing showing the path of a laser (LA) irradiated on the catheter body (100) of Fig. 11.

[0151] Referring to FIG. 12, as the controller (1400) controls the driving unit (1200) to rotate and linearly move the catheter body (100), a laser (LA) can be irradiated along a spiral path to the catheter body (100).

[0152] In detail, the groove (MG) may extend in a spiral shape on the outer surface of the catheter body (100). When the optical module (1310) irradiates the catheter body (100) with a laser (LA) at a preset position, the surface of the catheter body (100) may be processed.

[0153] At the same time, when the catheter body (100) rotates and moves linearly, the path of the laser irradiated on the outer surface of the catheter body (100) extends in a spiral shape, so that a spiral groove (MG) can be processed.

[0154] The controller (1400) can control the rotational speed and linear movement speed of the catheter body (100).

[0155] Specifically, the controller (1400) can determine the rotational speed and linear movement speed of the catheter body (100) by considering the width, spacing, etc. of the groove (MG) formed in the catheter body (100). In addition, the controller (1400) can determine the rotational speed and linear movement speed of the catheter body (100) by considering the spot spacing of the laser (LA) irradiated on the catheter body (100) and the pulse width of the laser (LA).

[0156] The specific method by which the controller (1400) controls the operation of the catheter body (100) will be described in detail below.

[0157] The controller (1400) is connected to the processing unit (1300) and can control the optical module (1310) to irradiate a laser (LA) to the catheter body (100) in a preset pattern.

[0158] Specifically, the processing unit (1300) can process the surface of the catheter body (100) by irradiating the catheter body (100) with a laser (LA) from the optical module (1310). At this time, the controller (1400) controls the laser (LA) to be irradiated in a preset pattern through the optical module (1310), so that a fine groove (MG) can be processed with uniform quality, and other unnecessary deformations of the catheter body (100) can be prevented.

[0159] The controller (1400) can control the laser (LA) irradiated from the light source (SC). Specifically, the controller (1400) can determine the pulse width and wavelength of the laser (LA) by considering the material of the catheter body (100), the width of the groove (MG), the inclination angle of the side wall (SW), etc.

[0160] Additionally, the controller (1400) can determine the spot spacing of the laser (LA) irradiated from the light source (SC). The specific principle by which the controller (1400) controls the laser (LA) irradiated from the light source (SC) will be described in detail below.

[0161] Below, the spot, pattern, and groove (MG) formation principle of the laser (LA) irradiated on the catheter body (100) are described in detail.

[0162] FIG. 13 and FIG. 14 are drawings showing an example of a laser pattern (LP) irradiated onto a catheter body (100) in the processing unit (1300) of FIG. 11.

[0163] Referring to FIGS. 13 and 14, the laser (LA) irradiated to the catheter body (100) through the optical module (1310) may have a preset pattern.

[0164] As described above, since the catheter body (100) is made of a soft material that is easily deformed by heat, the light source unit (SC) can form a groove (MG) by irradiating the catheter body (100) with a laser (LA) below a reference value. At this time, the light source unit (SC) and the optical module (1310) can irradiate the laser (LA) in a preset pattern on the surface of the catheter body (100), thereby minimizing unnecessary deformation of the catheter body (100) and uniformly and precisely processing the groove (MG).

[0165] In one embodiment, the optical module (1310) can irradiate a laser (LA) in a circular laser pattern (LP) on the outer surface of the catheter body (100). When the laser pattern (LP) has a circular shape, the pattern radius (PR) can be set to be substantially 0.5 times the width of the groove (MG) formed on the catheter body (100).

[0166] For example, the laser pattern (LP) may be formed by a set of multiple laser spots (LS) as shown in Fig. 12. The light source unit (SC) can irradiate the laser (LA) at a predetermined interval, and as a result, the laser (LA) can be irradiated to the laser spots (LS) at a predetermined interval (SL) on the outer surface of the catheter body (100).

[0167] At this time, the spacing (SL) of the laser spot (LS) and the radius (SR) of the laser spot (LS) may vary depending on the irradiation cycle and intensity of the laser (LA) irradiated from the light source (SC). The controller (1400) can simultaneously improve the processing precision and processing economy of the groove (MG) by adjusting the spacing and size of the laser spot (LS).

[0168] In one embodiment, the optical module (1310) irradiates a laser (LA) in a preset pattern to the catheter body (100), and the light source (SC) can irradiate the laser (LA) at a predetermined angle (SA) with respect to the outer surface of the catheter body (100).

[0169] As described above, the laser (LA) can be rotated and irradiated by a rotating module (not shown), and at this time, the angle (SA) at which the laser (LA) is irradiated can be less than 90 degrees.

[0170] In detail, before the groove (MG) is formed in the catheter body (100), i.e., in the initial state, the laser (LA) can be irradiated as a point source on the surface of the catheter body (100). As the catheter body (100) is processed by the laser (LA) irradiated in a circular pattern, a groove (MG) having a predetermined depth and width can be formed. At this time, as the laser (LA) is irradiated from the light source (SC) at a predetermined angle (SA), as shown in FIG. 14, a groove (MG) having an inclined side wall portion (SW) can be formed as the catheter body (100) is processed by the laser (LA).

[0171] FIG. 15 is a conceptual diagram showing a state in which a laser (LA) is irradiated to a catheter body (100) in a processing unit (1300A) according to another embodiment of the present invention.

[0172] Referring to FIG. 15, the laser pattern (LP) may be formed by being controlled into a ring shape by one or more lenses.

[0173] Fig. 15 shows an embodiment in which an optical module (1310A) has a lens unit having a pair of adjusting lenses (AL1, AL2) and a condenser lens (CL).

[0174] A pair of control lenses (AL1, AL2) are opposed to each other, and a condenser lens (CL) can control the radius of a laser pattern (LP) formed by passing through the control lenses (AL1, AL2). A laser (LA) irradiated from a light source (not shown) can be controlled into a circular pattern by passing through the first control lens (AL1) and the second control lens (AL2), and the radius of the circular pattern can be controlled by passing through the condenser lens (CL) to reach the catheter body (100).

[0175] At this time, the pulse energy of the laser (LA) irradiated from the light source (not shown) can be selected to be greater than a predetermined size. As a result, the laser (LA) passing through the lens unit can cut the catheter body (100).

[0176] The detailed configuration, arrangement, type, etc. of the lens unit provided in the optical module (1310A) are not particularly limited, and can be provided in any structure that allows a laser (LA) of appropriate intensity to effectively reach the surface of the catheter body (100) to form a pattern.

[0177] As another example, the processing unit (1300) may include a scanner (not shown) to form a circular laser pattern (LP). In this way, the method by which the processing unit (1300) irradiates the laser (LA) in a preset pattern may be selected in various ways depending on the processing purpose and conditions.

[0178] Next, a detailed description will be given of a specific method for attaching a fixing pin (CP) to a catheter body (100).

[0179] Fig. 16 is a drawing showing a state in which the fixed pin (CP) of Fig. 11 is coupled to the catheter body (100).

[0180] Referring to FIG. 16, the catheter manufacturing system (1000) may further include a coupling unit (1500). The coupling unit (1500) may couple the catheter body (100) and the fixing pin (CP) before the catheter body (100) is placed on the support jig (1100) and processed.

[0181] A poly catheter is inserted into the body and is provided with flexibility, so that the catheter body (100) can be made of a soft material. The catheter manufacturing system (1000) processes a groove (MG) by irradiating the surface of the catheter body (100) with a laser (LA) without applying a separate external force to the catheter body (100). During this process, the catheter body (100) needs to be stably supported.

[0182] The coupling unit (1500) is coupled by inserting a fixing pin (CP) into the catheter body (100), and the catheter body (100) coupled with the fixing pin (CP) can be stably supported on the support jig (1100) during the laser (LA) processing process.

[0183] The fixing pin (CP) may be made of a relatively hard material compared to the catheter body (100). For example, the fixing pin (CP) may include a metal such as SUS or aluminum, or polyethylene, polypropylene, PVC, etc.

[0184] Fig. 17 is an enlarged view of one end of the catheter body (100) and a part of the fixing pin (CP) of Fig. 16.

[0185] Referring to FIG. 17, a fixing pin (CP) can be inserted into one end of the catheter body (100).

[0186] In one embodiment, the cross-sectional shape of the fixed pin (CP) may substantially correspond to the cross-sectional shape of the first flow path (FP1) of the catheter body (100).

[0187] The fixed pin (CP) is tightly coupled to the first flow path (FP1) having the largest cross-sectional area in the catheter body (100), and can rotate and move linearly together with the catheter body (100). Therefore, the cross-section of the fixed pin (CP) has a shape substantially identical to the cross-section of the first flow path (FP1) of the catheter body (100), thereby stably supporting the catheter body (100).

[0188] In one embodiment, the cross-sectional area of ​​the fixing pin (CP) may be equal to or smaller than the cross-sectional area of ​​the first flow path (FP1). For example, the cross-sectional area of ​​the fixing pin (CP) may be 0.8 to 1 times the cross-sectional area of ​​the first flow path (FP1). This allows the fixing pin (CP) to be smoothly inserted into the first flow path (FP1) to support the catheter body (100).

[0189] The combination unit (1500) may include an insertion module (1510) and a gas injection module (1520).

[0190] The insertion module (1510) can insert a fixing pin (CP) into the catheter body (100). The insertion module (1510) can insert the fixing pin (CP) positioned at one end of the catheter body (100) to the other end of the catheter body (100). At this time, the insertion module (1510) can insert the fixing pin (CP) into the catheter body (100) by linearly moving it as shown in FIG. 16, or conversely, can linearly move the catheter body (100) to be coupled with the fixing pin (CP).

[0191] The gas injection module (1520) can inject expansion gas (EG) into the first flow path (FP1) of the catheter body (100).

[0192] In order to stably support the catheter body (100) by tightly connecting the fixing pin (CP) and the catheter body (100), the fixing pin (CP) may have a cross-section that substantially corresponds to the first flow path (FP1) of the catheter body (100). Accordingly, when the fixing pin (CP) is inserted into the catheter body (100), the insertion may not be performed smoothly or the catheter body (100) may be damaged by friction.

[0193] The coupling unit (1500) can be smoothly inserted into the catheter body (100) by the insertion module (1510) while the gas injection module (1520) injects expansion gas (EG) into the first flow path (FP1) of the catheter body (100).

[0194] Figure 18 is a drawing showing a state in which expansion gas is injected into the catheter body of Figure 16.

[0195] Referring to FIG. 18, the first euro (FP1) can be expanded by injecting expansion gas (EG) therein.

[0196] The gas injection module (1520) can inject expansion gas (EG) into the interior of the first flow path (FP1). For example, the expansion gas (EG) can be air.

[0197] The first flow path (FP1) can be expanded by expansion gas (EG). The gas injection module (1520) can temporarily expand the first flow path (FP1) by injecting expansion gas (EG) at a predetermined pressure into the first flow path (FP1). The fixing pin (CP) can be inserted through the expanded first flow path (FP1) to be smoothly connected to the catheter body (100).

[0198] In one embodiment, the gas injection module (1520) can inject expansion gas (EG) from the other end of the catheter body (100). When the fixing pin (CP) is inserted from one end of the catheter body (100), the gas injection module (1520) injects expansion gas (EG) from the other end of the catheter body (100) into the first flow path (FP1), so that the fixing pin (CP) can be quickly and easily inserted into the catheter body (100).

[0199] Figures 19 to 21 are flowcharts showing a catheter manufacturing method according to one embodiment of the present invention.

[0200] Referring to FIGS. 19 to 21, a catheter manufacturing method may include a step (S100) of placing a catheter body on a support jig, and a step (S200) of irradiating a laser from a light source unit to the catheter body in a preset pattern to form a groove on the outer surface of the catheter body.

[0201] The step (S100) of placing a catheter body on a support jig may support the catheter body on the support jig. The catheter body may be placed on the support jig so as to be rotatable and linearly movable.

[0202] In one embodiment, the step (S100) of placing a catheter body on a support jig may include placing a catheter body with a fixed pin coupled to the support jig.

[0203] Specifically, the step (S100) of placing a catheter body on a support jig may include the step (S110) of aligning the position of a fixing pin at one end of the catheter body, the step (S120) of injecting air into a first flow path at the other end of the catheter body to expand the first flow path, the step (S130) of inserting a fixing pin from one end of the catheter body to the other end and connecting it to the first flow path, and the step (S140) of placing the catheter body connected to the fixing pin on the support jig.

[0204] The step (S110) of aligning the position of the fixing pin at one end of the catheter body can align the fixing pin at a position corresponding to the first flow path at one end of the catheter body. The fixing pin can be inserted into the first flow path and connected to the catheter body. Therefore, the step (S110) of aligning the position of the fixing pin at one end of the catheter body can align the position of the fixing pin before inserting the fixing pin into the first flow path.

[0205] The step (S120) of expanding the first flow path by injecting air into the first flow path from the other end of the catheter body may include injecting air into the first flow path from the other end of the catheter body. Since the cross-sectional shape of the fixing pin may substantially correspond to the cross-sectional shape of the first flow path, the first flow path may be expanded by injecting air into the first flow path from the other end of the catheter body before and during the insertion of the fixing pin into the first flow path. This allows the fixing pin to be smoothly inserted into the first flow path.

[0206] The step (S130) of inserting a fixing pin from one end of the catheter body to the other end and connecting it to the first flow path may be performed by inserting the fixing pin from one end of the first flow path of the catheter body to the other end. At this time, the fixing pin may move in one direction and be inserted into the catheter body, or the catheter body may move toward the fixing pin and connect with the fixing pin.

[0207] The step (S140) of placing the catheter body coupled with the fixing pin on the support jig may involve placing the catheter body on the support jig. At this time, the fixing pin may be tightly coupled to the first flow path formed inside the catheter body. Through this, the catheter body can be stably supported on the support jig and can stably rotate and move linearly by receiving a driving force from the outside.

[0208] The step (S200) of forming a groove on the outer surface of the catheter body by irradiating a laser from the light source unit to the catheter body in a preset pattern can form a groove on the outer surface of the catheter body by cutting the surface of the catheter body by irradiating a laser from the light source unit.

[0209] The step (S200) of forming a groove on the outer surface of the catheter body by irradiating a laser from a light source unit to the catheter body in a preset pattern may include a step (S210) of aligning the position of the light source unit adjacent to the support jig, a step (S220) of linearly moving the catheter body placed on the support jig in one direction while rotating it, and a step (S230) of irradiating the catheter body with a laser from the light source unit by passing through an optical module.

[0210] The step (S210) of aligning the position of the light source unit adjacent to the support jig can align the position of the light source unit to the end of the groove to be processed, that is, the point where the groove starts from one end of the catheter body.

[0211] The step (S220) of linearly moving the catheter body placed on the support jig in one direction while rotating the catheter body can be linearly moved while rotating the catheter body. At this time, the rotational speed and linear movement speed of the catheter body can be comprehensively determined by considering the width and spacing of the groove to be processed, the intensity of the laser irradiated from the light source, the laser irradiation cycle, etc.

[0212] The step (S230) in which a laser is irradiated from a light source unit through an optical module onto a catheter body, the laser irradiated from the light source unit can pass through the optical module and be irradiated onto the catheter body in a preset pattern.

[0213] The light source unit can irradiate a laser having an intensity lower than a reference value onto the catheter body, and at this time, the laser can pass through the optical module and be irradiated onto the outer surface of the catheter body in a preset pattern. This allows for precise processing of the groove while minimizing deformation of the catheter body. At this time, the laser can be irradiated at a predetermined angle with respect to the surface of the catheter body, so that the side walls of the groove can be formed to be inclined.

[0214] Additionally, as the light source unit irradiates the catheter body with laser light, the catheter body rotates and moves linearly in one direction, so that the laser path can extend spirally along the catheter body. As a result, a spiral groove can be formed on the outer surface of the catheter body.

[0215] Meanwhile, the order of each step of the catheter manufacturing method shown in FIGS. 19 to 21 is exemplary, and each step may be performed simultaneously or the order may be changed as needed.

[0216] In particular, the step (S120) of expanding the first flow path by injecting air into the first flow path from the other end of the catheter body in FIG. 20 is illustrated before the step (S130) of inserting a fixing pin from one end of the catheter body to the other end and connecting it to the first flow path, but this is not limited thereto, and both steps may be performed simultaneously.

[0217] Similarly, the step (S220) of linearly moving in one direction while rotating the catheter body placed on the support jig in FIG. 21 and the step (S230) of irradiating the catheter body with a laser from the light source unit through the optical module can be performed simultaneously.

[0218] A catheter manufacturing system and a catheter manufacturing method according to one embodiment of the present invention can form a concave groove by irradiating a laser onto the surface of a catheter body and cutting it. A catheter manufacturing system and a catheter manufacturing method according to one embodiment of the present invention can uniformly process a groove by irradiating a laser of a preset pattern onto the catheter body, and in the process, the catheter body can be rotated and linearly moved to form a groove extending in a spiral shape.

[0219] While the present invention has been described with reference to the embodiments illustrated in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the appended claims.

[0220] The specific implementations described in the examples are exemplary and do not limit the scope of the examples in any way. Furthermore, unless specifically stated as "essential," "important," or the like, an element may not be absolutely necessary for the application of the present invention.

[0221] The use of the term "above" and similar referential terms in the specification of embodiments (especially the claims) may refer to both singular and plural. Furthermore, if a range is described in the embodiments, it is intended that the invention includes individual values ​​within the range (unless otherwise stated), and is equivalent to describing each individual value constituting the range in the detailed description. Finally, unless the order of steps constituting a method according to an embodiment is explicitly stated or otherwise stated to the contrary, the steps may be performed in any suitable order. The embodiments are not necessarily limited by the order in which the steps are described. The use of all examples or exemplary terms (e.g., "etc.") in the embodiments is merely intended to describe the embodiments in detail, and the scope of the embodiments is not limited by the examples or exemplary terms, unless otherwise defined by the claims. Furthermore, those skilled in the art will recognize that various modifications, combinations, and variations may be made within the scope of the appended claims or their equivalents, depending on design conditions and factors.

Claims

1. Support jig on which the catheter body is placed; A driving unit connected to the above support jig and transmitting driving force to the catheter body; A processing unit having an optical module that irradiates a laser onto the catheter body and forms a groove on the outer surface of the catheter body; and A catheter manufacturing system, comprising: a controller for controlling at least one of the driving unit and the processing unit so that the optical module irradiates the laser in a preset pattern onto the catheter body.

2. In paragraph 1, The above controller, A catheter manufacturing system, wherein the driving unit is controlled so that the catheter body rotates and moves linearly in one direction when the laser is irradiated onto the catheter body from the optical module.

3. In paragraph 1, The above controller, A catheter manufacturing system that controls the processing unit to irradiate the laser in a ring pattern onto the catheter body.

4. In paragraph 3, The above controller, A catheter manufacturing system that controls the processing unit so that the laser passing through the optical module is irradiated onto the outer surface of the catheter body at a predetermined interval.

5. In paragraph 3, The above optical module, A catheter manufacturing system having a lens unit that guides the laser to be irradiated in a ring pattern onto the outer surface of the catheter body.

6. Step of placing the catheter body on the support jig; and A method for manufacturing a catheter, comprising: a step of irradiating a laser from a light source unit to the catheter body in a preset pattern to form a groove on the outer surface of the catheter body.

7. In paragraph 6, The step of forming the above groove is: A step of aligning the position of the light source unit adjacent to the support jig; A step of linearly moving the catheter body placed on the support jig in one direction while rotating it; and A method for manufacturing a catheter, comprising: a step of irradiating the catheter body with the laser from the light source unit through an optical module.

8. In paragraph 7, The step of linearly moving the above catheter body is: A catheter manufacturing method, wherein the rotational speed and linear movement speed of the catheter body are determined by considering at least one of the intensity of the laser irradiated to the catheter body and the irradiation cycle of the laser.

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