Molding device, catheter molding equipment and catheter molding method

Abstract

The embodiment of the invention provides a molding device, catheter molding equipment and a catheter molding method, and relates to the technical field of catheter molding. The molding device comprises a first mounting plate and a plurality of first molding wheels, and the plurality of first molding wheels are arranged on the first mounting plate; wherein the at least one first molding wheel is used for limiting the universal molding lining shaft of the catheter, so that the universal molding lining shaft of the catheter is bent, and the universal molding lining shaft of the catheter is inserted between the adjacent first molding wheels and bypasses the at least one first molding wheel, so that the universal molding lining shaft of the catheter can be molded in various bent shapes; the method also comprises the molding of the complex bent shape of the universal molding lining shaft of the catheter, and the molded universal molding lining shaft of the catheter penetrates into the catheter to support the head end of the catheter, so that the end of the catheter can be molded into the complex bent shape so as to be suitable for more blood vessels with complex bent shapes.

Description

Technical Field

[0001] The present invention relates to the technical field of catheter shaping, and in particular to a shaping device, a catheter shaping equipment and a catheter shaping method. Background Art

[0002] Medical catheters are mainly used clinically to pass through the human arteries through an incision in the femoral artery outside the body to reach the distal end of the carotid artery or intracranial artery for the delivery of guidewires, stents, balloons and other devices.

[0003] However, due to various factors such as the tortuosity of human arterial vessels, the location of lesions and the size of blood vessels, the tip of the medical catheter needs to be able to adapt to different vascular configurations in order to reach different vascular depths and lesion locations; at the same time, the passing performance of the medical catheter cannot change during the entire process; this is crucial to whether the medical catheter can successfully pass through the tortuosity of the blood vessel and fully exert the catheter capacity.

[0004] In the prior art, the shaping effect of the catheter tip is not ideal. There is a problem that the catheter tip has a single shaping shape and is difficult to be applied to blood vessels with more complex curved shapes. Summary of the invention

[0005] The present invention provides a shaping device, a catheter shaping equipment and a catheter shaping method, which can shape the catheter tip into a complex curved shape to be suitable for blood vessels with more complex curved shapes.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] In a first aspect, the present invention provides a shaping device, comprising:

[0008] a first mounting plate; and

[0009] A plurality of first molding wheels, wherein the plurality of first molding wheels are disposed on the first mounting plate;

[0010] Among them, at least one of the first molding wheels is used to limit the universal molding liner shaft of the catheter so that the universal molding liner shaft of the catheter can bend.

[0011] In an optional embodiment, the first molding wheel is provided with a groove, and the groove surrounds the peripheral wall of the first molding wheel.

[0012] In an optional embodiment, the plurality of first molding wheels are distributed in an array, and the plurality of first molding wheels are located on the same side wall of the first mounting plate.

[0013] In an optional embodiment, the molding device further includes a second mounting plate and a plurality of second molding wheels, the first mounting plate is rotatably connected to the second mounting plate, and the plurality of second molding wheels are disposed on the second mounting plate.

[0014] In an optional embodiment, the shaping device further comprises a catheter universal shaping liner shaft, and the catheter universal shaping liner shaft is used to be inserted into the catheter;

[0015] Among them, the catheter universal plastic liner shaft includes a plastic core rod and a spiral member wound around the plastic core rod, and the spiral member is used to support the inner wall of the catheter.

[0016] In an optional embodiment, the spacing between adjacent first molding wheels is greater than or equal to the outer diameter of the spiral member.

[0017] In an optional embodiment, at least one end of the plastic core rod is in a hemispherical structure.

[0018] In an optional embodiment, the shaping device further comprises a spiral shaper, the spiral shaper comprises a shaping rod, the shaping rod comprises a plurality of column structures connected in sequence, and the diameters of two adjacent column structures are different.

[0019] In an optional embodiment, the spiral shaper further comprises a handle, and the handle is connected to one of the column structures of the shaping rod.

[0020] In a second aspect, the present invention provides a catheter molding device, comprising a constant temperature heating device, a rapid cooling device, a device housing, and the molding device described in the aforementioned embodiment, wherein the device housing has a molding chamber, and the molding device also includes a catheter universal molding liner shaft, which is used to be inserted into the catheter and is arranged in the molding chamber, wherein the constant temperature heating device is used to heat the molding chamber, and the rapid cooling device is used to cool the molding chamber.

[0021] In an optional embodiment, the constant temperature heating device includes a hot air circulation pipeline, a circulation fan and a heating element, the inlet of the hot air circulation pipeline and the outlet of the hot air circulation pipeline are both connected to the molding chamber, and the circulation fan and the heating element are arranged in the hot air circulation pipeline.

[0022] In an optional embodiment, the rapid cooling device includes a cooling pipeline, a refrigerant tank, a heat sink and a compressor, and the heat sink, the refrigerant tank and the compressor are sequentially arranged on the cooling pipeline;

[0023] Part of the cooling pipeline is arranged in the molding chamber to cool the molding chamber.

[0024] In an optional embodiment, the rapid cooling device includes a carbon dioxide storage bottle, a pressure reducing valve and an evaporator which are connected in sequence, and the evaporator is connected to the molding chamber.

[0025] In an optional embodiment, a slot is provided in the molding chamber, and the slot is used to limit the position of the universal molding liner shaft of the catheter.

[0026] In an optional embodiment, the device housing includes a shell and an opening and closing door, the shell has the molding chamber, the opening and closing door is installed on the shell, and the opening and closing door is used to open or close the molding chamber; wherein the opening and closing door is provided with a duct opening.

[0027] In an optional embodiment, the catheter shaping device further includes a human-machine interaction screen, and the human-machine interaction screen is disposed on the device housing.

[0028] In a third aspect, the present invention provides a catheter shaping method, which uses a catheter universal shaping liner shaft and a shaping device to shape the catheter, wherein the shaping device includes a first mounting plate and a plurality of first shaping wheels, wherein the plurality of first shaping wheels are arranged on the first mounting plate, wherein at least one of the first shaping wheels is used to limit the catheter universal shaping liner shaft so that the catheter universal shaping liner shaft is bent;

[0029] The catheter shaping method comprises:

[0030] The step of shaping the catheter universal shaping inner liner shaft comprises:

[0031] Insert the catheter universal molding liner shaft between adjacent first molding wheels and bypass at least one of the first molding wheels;

[0032] Insert the shaped catheter universal shaping liner shaft into the catheter;

[0033] heating a catheter universal plastic liner shaft sleeved with a catheter;

[0034] The heated catheter universal plastic liner shaft with the catheter sleeve is cooled down.

[0035] In a fourth aspect, the present invention provides a catheter shaping method, which uses a catheter universal shaping liner shaft and a spiral shaper, wherein the spiral shaper includes a shaping rod, and the shaping rod includes a plurality of column structures connected in sequence, and the diameters of two adjacent column structures are different;

[0036] The catheter shaping method comprises:

[0037] The step of shaping the catheter universal shaping inner liner shaft comprises:

[0038] Helically winding the catheter universal shaping liner shaft around the outer wall of at least one cylindrical structure;

[0039] Insert the shaped catheter universal shaping liner shaft into the catheter;

[0040] heating a catheter universal plastic liner shaft sleeved with a catheter;

[0041] The heated catheter universal plastic liner shaft with the catheter sleeve is cooled down.

[0042] The beneficial effects of the shaping device, catheter shaping equipment and catheter shaping method of the embodiments of the present invention include, for example:

[0043] The present invention provides a shaping device, which includes a first mounting plate and a plurality of first shaping wheels, wherein the plurality of first shaping wheels are arranged on the first mounting plate; wherein, at least one first shaping wheel is used to limit the position of the catheter universal shaping liner shaft so that the catheter universal shaping liner shaft can be bent, and the catheter universal shaping liner shaft is inserted between adjacent first shaping wheels and bypasses at least one first shaping wheel, thereby realizing shaping of the catheter universal shaping liner shaft into a variety of curved shapes, and also including shaping of some complex curved shapes of the catheter universal shaping liner shaft, and the catheter universal shaping liner shaft that has been shaped is inserted into the catheter to realize support for the catheter head end, thereby realizing shaping of the catheter tip into a complex curved shape to be suitable for more blood vessels with complex curved shapes.

[0044] The present invention provides a catheter molding device, which includes a constant temperature heating device, a rapid cooling device, a device housing and the above-mentioned molding device, wherein the device housing has a molding chamber, and the molding device also includes a catheter universal molding liner shaft, which is used to pass through the catheter and is arranged in the molding chamber, wherein the constant temperature heating device is used to heat the molding chamber, and the rapid cooling device is used to cool the molding chamber, and the catheter molding device has all the functions of the above-mentioned molding device.

[0045] The present invention provides a catheter shaping method, which uses a catheter universal shaping liner shaft and a shaping device to shape the catheter, the shaping device includes a first mounting plate and a plurality of first shaping wheels, the plurality of first shaping wheels are arranged on the first mounting plate, wherein at least one first shaping wheel is used to limit the catheter universal shaping liner shaft so as to bend the catheter universal shaping liner shaft; the catheter shaping method includes: shaping the catheter universal shaping liner shaft; the steps of shaping the catheter universal shaping liner shaft include: inserting the catheter universal shaping liner shaft between adjacent first shaping wheels and bypassing at least one first shaping wheel; inserting the shaped catheter universal shaping liner shaft into the catheter; sleeve device The catheter universal shaping liner shaft with a catheter is heated; the catheter universal shaping liner shaft with a catheter that has been heated is cooled, and the catheter universal shaping liner shaft is inserted between adjacent first shaping wheels and bypasses at least one first shaping wheel, so as to realize a variety of bending shapes of the catheter universal shaping liner shaft, and also includes some complex bending shapes of the catheter universal shaping liner shaft. The catheter universal shaping liner shaft that has been shaped is inserted into the catheter to support the catheter head end, and then the catheter is heated and cooled, so that the catheter end can be shaped into a complex bending shape to be suitable for more blood vessels with complex bending shapes.

[0046] The present invention provides a catheter shaping method, which adopts a catheter universal shaping liner shaft and a spiral shaping device, wherein the spiral shaping device comprises a shaping rod, and the shaping rod comprises a plurality of column structures connected in sequence, and the diameters of two adjacent column structures are different; the catheter shaping method comprises: shaping the catheter universal shaping liner shaft; the steps of shaping the catheter universal shaping liner shaft comprise: spirally winding the catheter universal shaping liner shaft around the outer wall of at least one column structure; inserting the shaped catheter universal shaping liner shaft into the catheter; and The catheter universal shaping liner shaft is heated; the catheter universal shaping liner shaft which is covered with a catheter and the heated shaft is cooled; the catheter universal shaping liner shaft is spirally wound around the outer wall of at least one column structure to shape the catheter universal shaping liner shaft into a variety of complex curved shapes; the catheter universal shaping liner shaft which has been shaped is inserted into the catheter to support the catheter head end; and the catheter is heated and cooled to shape the catheter tip into a complex curved shape to be suitable for blood vessels with more complex curved shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A schematic diagram of a catheter shaping device provided in an embodiment of the present invention;

[0049] Figure 2 A schematic diagram of the internal structure of a catheter shaping device provided in an embodiment of the present invention;

[0050] Figure 3 A schematic diagram of a molding plate provided in an embodiment of the present invention;

[0051] Figure 4 A schematic diagram of a universal molded liner shaft for a catheter provided in an embodiment of the present invention;

[0052] Figure 5 A cross-sectional view of a catheter universal molded liner shaft provided in an embodiment of the present invention;

[0053] Figure 6 It is a schematic diagram of a molding plate provided in an embodiment of the present invention molding a catheter universal molding liner shaft into a first shape;

[0054] Figure 7 It is a schematic diagram of the molding plate provided in an embodiment of the present invention molding the catheter universal molding liner shaft into a second shape;

[0055] Figure 8 It is a schematic diagram of the molding plate provided in an embodiment of the present invention molding the catheter universal molding liner shaft into a third shape;

[0056] Fig. 9 It is a schematic diagram of the molding plate provided in an embodiment of the present invention molding the catheter universal molding liner shaft into a fourth shape;

[0057] Fig.10 It is a schematic diagram of the molding plate provided in the embodiment of the present invention molding the catheter universal molding liner shaft into a fifth shape;

[0058] Fig.11 A schematic diagram of a spiral shaping device provided in an embodiment of the present invention;

[0059] Fig.12 It is a schematic diagram of the spiral shaper provided in an embodiment of the present invention shaping the catheter universal shaping liner shaft into a first spiral state;

[0060] Fig.13 It is a schematic diagram of the spiral shaper provided in an embodiment of the present invention shaping the catheter universal shaping liner shaft into a second spiral state.

[0061] Icons: 100-molding plate; 110-first mounting plate; 120-first molding wheel; 121-groove; 130-second mounting plate; 140-second molding wheel; 200-universal molding liner shaft of catheter; 210-molding axis rod; 220-screw; 300-screw molding device; 310-column structure; 320-handle; 1101-molding chamber; 1102-slot; 1110-housing; 1111-upper shell; 1112-lower shell; 1120-opening and closing door; 1121-first opening; 1122-second opening; 1200-constant temperature heating device; 1211-heating pipe; 1212-gas reflux pipe; 1220-circulating fan; 1230-heating element; 1300-rapid cooling device; 1311-condensing agent supply pipe; 1312-condensing agent reflux pipe; 1320-condensing agent box; 1330-heating element; 1340-compressor; 1400-human-computer interaction screen; 1500-button; 1600-temperature sensor. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0063] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0065] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0066] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0067] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0068] As mentioned in the background art, medical catheters are mainly used clinically to deliver guidewires, stents, balloons and other devices through an extracorporeal femoral artery incision, through human arterial vessels, to the distal end of the carotid artery or intracranial artery.

[0069] However, due to various factors such as the tortuosity of human arterial vessels, the location of lesions and the size of blood vessels, the tip of the medical catheter needs to be able to adapt to different vascular configurations in order to reach different vascular depths and lesion locations; at the same time, the passing performance of the medical catheter cannot change during the entire process; this is crucial to whether the medical catheter can successfully pass through the tortuosity of the blood vessel and fully exert the catheter capacity.

[0070] In the prior art, the shaping effect of the catheter tip is not ideal. There is a problem that the catheter tip has a single shaping shape and is difficult to be applied to blood vessels with more complex curved shapes.

[0071] Specifically, the tip of existing medical catheters is mainly straight. When in use, doctors need to manually bend the catheter tip into the desired approximate shape by bending the shaping needle, and use hot steam for heating and shaping. However, once the shaping needle is removed, the curved shape will rebound significantly. This method is suitable for situations where the blood vessel has a small curvature. Because the shaping needle is too small, if the curvature is large, the tip of the medical catheter will bend, affecting its passability.

[0072] When some medical catheters are manufactured, certain elbow designs are made based on experience. The elbow range is generally 90°-130°, and the angle is relatively fixed. Although it will not rebound, the model structure is single and has no flexibility when facing blood vessels in different situations. In other words, it is difficult to apply to blood vessels with more complex curved shapes.

[0073] The complex curved shape here can be understood as a situation where the degree of curvature is large or there are multiple curved areas. Of course, it also includes some situations where the shape is curved in different planes.

[0074] In view of this, please refer to Figure 1-Figure 13 The shaping device, catheter shaping equipment and catheter shaping method provided in the embodiments of the present invention can solve this problem, which will be described in detail below.

[0075] Please refer to Figure 1 and Figure 2In an embodiment of the present invention, a catheter shaping device is provided, which includes a constant temperature heating device 1200, a rapid cooling device 1300, a device housing and a shaping device (described in detail below). The catheter shaping device can improve the timeliness of the shaping of medical catheters (which can be understood as playing a role in the timely shaping and use of medical catheters during surgery), shaping accuracy and efficiency.

[0076] Among them, the equipment shell has a molding chamber 1101, and the molding device also includes a catheter universal molding liner shaft 200, which is used to be inserted into the catheter and arranged in the molding chamber 1101, wherein the constant temperature heating device 1200 is used to heat the molding chamber 1101, and the rapid cooling device 1300 is used to cool the molding chamber 1101.

[0077] The molding device can perform preliminary molding of the catheter tip, and place the preliminary molded catheter into the molding chamber 1101 of the device housing, and then heat the catheter tip in the molding chamber 1101 through the constant temperature heating device 1200, so that the polymer material on the surface of the catheter tip is heated and softened, and then the polymer material of the catheter tip in the heat-softened state is subjected to a hot and cold shock through the rapid cooling device 1300, so that the polymer material of the catheter tip is rapidly cooled and molded, thereby fixing the catheter tip into a set shape. It should be noted that the catheter here can be understood as a medical catheter.

[0078] The process from softening by heat to cooling to setting state can be understood as follows: for example, during the heat setting cooling process, the microstructure of polymer materials such as nylon undergoes molecular chain rearrangement and orientation during heating, as well as structural stabilization during cooling. These changes ultimately affect the physical properties of nylon and the performance of the material.

[0079] Specifically, please refer to Figure 3-Figure 5 In this embodiment, the molding device includes a molding plate 100 and a catheter universal molding liner shaft 200. The molding plate 100 includes a first mounting plate 110 and a plurality of first molding wheels 120. The plurality of first molding wheels 120 are disposed on the first mounting plate 110.

[0080] The catheter universal molded liner shaft 200 is used to be inserted into the catheter. Specifically, the catheter universal molded liner shaft 200 can be inserted into the catheter head end. The catheter universal molded liner shaft 200 can support the catheter and prevent the catheter head end from being bent during the bending process.

[0081] The catheter universal plastic lining shaft 200 includes a plastic axis rod 210 and a spiral member 220 wound on the plastic axis rod 210, the spiral member 220 is used to support the inner wall of the catheter, the spiral member 220 can be made of a stainless steel microspring, the spacing between the turns of the spiral member 220 can be zero, that is, the turns of the spiral member 220 are attached to each other, and the plastic axis rod 210 can be made of a plastic metal wire, which is used to fix the shape of the catheter universal plastic lining shaft 200. When the catheter universal plastic lining shaft 200 is inserted into the catheter, the catheter is molded into a corresponding shape following the shape of the catheter universal plastic lining shaft 200.

[0082] It is easy to understand that the outer diameter of the spiral part 220 of the catheter universal plastic liner shaft 200 can be equal to the inner diameter of the catheter. Of course, in some embodiments, the outer diameter of the spiral part 220 of the catheter universal plastic liner shaft 200 can also be slightly smaller than the inner diameter of the catheter.

[0083] Among them, at least one end of the plastic shaft 210 is a hemispherical structure. Specifically, in this embodiment, both ends of the plastic shaft 210 are hemispherical structures to prevent the catheter universal plastic liner shaft 200 from scratching the inner wall of the catheter when inserting into the catheter.

[0084] The hemispherical structure at the end of the plastic shaft 210 can be formed by grinding after the laser spot welding process. Specifically, after the plastic shaft 210 and the spiral member 220 are assembled, the plastic shaft 210 and the spiral member 220 are connected together by laser spot welding, and then a grinding tool is used to grind the welding points (i.e., the two ends of the catheter universal plastic liner shaft 200) to be rounded so that the catheter is not damaged during shaping.

[0085] Of course, in other embodiments, the plastic shaft rod 210 and the spiral member 220 may be connected together by bonding, and then polished so that both ends of the plastic shaft rod 210 have a hemispherical structure, or other processes that can connect the plastic shaft rod 210 and the spiral member 220 together are adopted, and then polished so that both ends of the plastic shaft rod 210 have a hemispherical structure. The process for connecting the plastic shaft rod 210 and the spiral member 220 together is not limited here.

[0086] Among them, at least one first molding wheel 120 is used to limit the catheter universal molding liner shaft 200 so that the catheter universal molding liner shaft 200 can be bent. Specifically, the catheter universal molding liner shaft 200 is inserted between adjacent first molding wheels 120 and bypasses at least one first molding wheel 120. This can achieve a variety of bending shapes of the catheter universal molding liner shaft 200, and also includes some complex bending shapes of the catheter universal molding liner shaft 200.

[0087] The catheter universal shaping liner shaft 200 that has been shaped is inserted into the catheter to support the catheter tip, thereby enabling the catheter tip to be shaped into a complex curved shape to be suitable for blood vessels with more complex curved shapes.

[0088] It is easy to understand that the first molding wheel 120 of the molding plate 100 can mold the plastic shaft 210 into different shapes as needed, and at the same time, the spiral member 220 will also change into a corresponding shape in accordance with the plastic shaft 210.

[0089] In this embodiment, the outer diameter of the spiral 220 can be 0.054 inches or 0.064 inches or 0.070 inches or 0.086 inches. Of course, in other embodiments, the outer diameter of the spiral 220 can also be other sizes. The outer diameter size of the spiral 220 is not limited here. The catheter universal molded liner shaft 200 can be sterilized in disposable sterile packaging before use.

[0090] In order to facilitate the shaping of the catheter universal molding liner shaft 200, the first molding wheel 120 is provided with a groove 121, and the groove 121 surrounds the peripheral wall of the first molding wheel 120. The groove 121 has a limiting effect on the catheter universal molding liner shaft 200 in the radial direction of the catheter universal molding liner shaft 200. In this way, when the catheter universal molding liner shaft 200 bypasses part of the first molding wheel 120 or passes through the adjacent first molding wheel 120, the catheter universal molding liner shaft 200 is not easy to separate from the first molding wheel 120, thereby ensuring that the catheter universal molding liner shaft 200 is easier to shape into the required shape.

[0091] Multiple first molding wheels 120 are distributed in an array, and multiple first molding wheels 120 are located on the same side wall of the first mounting plate 110. Specifically, all first molding wheels 120 located on the same side wall of the first mounting plate 110 are distributed in rows and columns, and the spacing L between the edges of adjacent first molding wheels 120 is greater than or equal to the outer diameter D of the spiral member 220, so as to facilitate the catheter universal molding liner shaft 200 to penetrate into the molding plate 100 or be taken out from the molding plate 100.

[0092] Specifically, the spacing L between adjacent first molding wheels 120 can be in the range of 2D≥L≥D. In this way, on the one hand, it is convenient for the catheter universal molding liner shaft 200 to penetrate into the molding plate 100 or be taken out from the molding plate 100. On the other hand, the spacing L between adjacent first molding wheels 120 will not be too large to affect the molding effect of the catheter universal molding liner shaft 200.

[0093] In addition, it should be noted that the groove 121 of the first shaping wheel 120 has an annular bottom wall. Since the diameter of the tortuous part in the blood vessel is relatively small, the diameter of the annular bottom wall can be 3-6 mm, which has a good shaping effect on the catheter universal shaping liner shaft 200. For example, the diameter of the annular bottom wall can be 3 mm or 4 mm or 5 mm or 6 mm, and the shaped catheter can quickly (for example, 2 to 3 seconds) smoothly enter the internal carotid artery.

[0094] In order to facilitate the bending of the catheter universal molding liner shaft 200 into a more complex curved shape, the molding device also includes a second mounting plate 130 and a plurality of second molding wheels 140. The first mounting plate 110 is rotatably connected to the second mounting plate 130, and the plurality of second molding wheels 140 are arranged on the second mounting plate 130.

[0095] The second mounting plate 130 and the first mounting plate 110 can be rotatably connected to the first mounting plate 110 via a hinge structure, that is, the first mounting plate 110 and the second mounting plate 130 are simultaneously connected to the hinge structure, so that the catheter universal shaping liner shaft 200 can be shaped into a tortuous effect like the cerebrovascular siphon segment.

[0096] Among them, the structure of the second molding wheel 140 can refer to the above-mentioned first molding wheel 120, and the distribution status of all the second molding wheels 140 can also refer to the distribution status of all the above-mentioned first molding wheels 120, which will not be repeated here.

[0097] It is easy to understand that in this embodiment, during the rotation of the first mounting plate 110 relative to the second mounting plate 130, the first molding wheel 120 and the second molding wheel 140 can be close to or away from each other. Fig. 9 As shown in FIG. 1 , the first mounting plate 110 and the second mounting plate 130 are located in the same plane. When the first mounting plate 110 and the second mounting plate 130 rotate relative to each other (as shown in FIG. 1 ), the first mounting plate 110 and the second mounting plate 130 are located in the same plane. Figure 3 As shown, the first mounting plate 110 and the second mounting plate 130 are distributed at an acute angle), and the first mounting plate 110 and the second mounting plate 130 jointly define a space for accommodating the first molding wheel 120 and the second molding wheel 140.

[0098] Please refer to Figure 6-Figure 10 The catheter universal shaping liner shaft 200 can be shaped into different bending states according to actual needs, such as Figure 6 As shown, the catheter universal molding liner shaft 200 can pass through two pairs of adjacent first molding wheels 120 and then bend into a semicircle around one of the first molding wheels 120 with a large bending amplitude.

[0099] like Figure 7As shown, the catheter universal molding liner shaft 200 passes through three pairs of adjacent first molding wheels 120, bends around one of the first molding wheels 120, and then passes through another pair of adjacent first molding wheels 120, forming a catheter universal molding liner shaft 200 with a straight bend.

[0100] like Figure 8 As shown, the catheter universal molding liner shaft 200 passes through two pairs of adjacent first molding wheels 120 and then bends around the two first molding wheels 120 in sequence to form a catheter universal molding liner shaft 200 with multiple bending parts.

[0101] like Fig. 9 As shown, the catheter universal molding liner shaft 200 passes through three pairs of adjacent first molding wheels 120, bends around one first molding wheel 120, penetrates into the position area of ​​the second mounting plate 130 and bypasses two second molding wheels 140, forming a catheter universal molding liner shaft 200 with multiple bending parts.

[0102] like Fig.10 As shown, the first mounting plate 110 and the second mounting plate 130 are distributed at an acute angle. After the catheter universal molding liner shaft 200 passes through two pairs of adjacent second molding wheels 140, it bypasses one of the second molding wheels 140, and then passes into the position area of ​​the first mounting plate 110 and bypasses a first molding wheel 120, forming a catheter universal molding liner shaft 200 with two bending portions. The two bending portions are not located in the same plane, so that the catheter head end can shape blood vessels suitable for more complex curved shapes.

[0103] In addition, in order to allow the catheter tip to be molded into other complex curved shapes, such as those suitable for continuous tortuosity or more curved locations in the C5, C6, and C7 segments of the cerebral blood vessels, please refer to Figure 11-13 In this embodiment, the shaping device further includes a spiral shaper 300, the spiral shaper 300 includes a shaping rod, the shaping rod includes a plurality of column structures 310 connected in sequence, and the diameters of two adjacent column structures 310 are different.

[0104] In this embodiment, there are four columnar structures 310 , the diameters of the four columnar structures 310 are 3 mm, 4 mm, 5 mm, and 6 mm respectively, and the length of each columnar structure 310 is 5-6 mm. For example, the length of the columnar structure 310 can be 5 mm, 5.5 mm, or 6 mm.

[0105] Along the axial direction of the column structure 310 , the diameters of the four column structures 310 increase gradually in sequence.

[0106] In addition, it should be noted that in this embodiment, adjacent column structures 310 of the molding rod can be slidably connected to each other, which can facilitate the contraction or extension of the molding rod. When the molding rod is in the extended state, the molding rod can have four column structures 310 with different diameters.

[0107] The catheter universal shaping lining shaft 200 can be wound on the column structure 310 of the spiral shaper 300 with reference to the corresponding tortuous path of the blood vessel. For example, it is first wound on the column structure 310 with a diameter of 4 mm, and then wound on the column structure 310 with a diameter of 3 mm. When winding, the column structure 310 with a large diameter is wound first and then the column structure 310 with a small diameter is wound.

[0108] Of course, it is also possible to only perform winding on a single column structure 310, for example, a 4 mm column structure 310 or a 3 mm column structure 310 is selected for winding.

[0109] The specific winding can be carried out according to different blood vessels.

[0110] In addition, in order to facilitate the winding of the catheter universal shaping liner shaft 200 on the column structure 310, the spiral shaper 300 also includes a handle 320, and the handle 320 is connected to one of the column structures 310 of the shaping rod. Specifically, in this embodiment, the handle 320 is connected to the column structure 310 with the largest diameter.

[0111] Please refer again Figure 1 and Figure 2 , wherein the housing 1110 of the device housing (described in detail below) includes an upper housing 1111 and a lower housing 1112 connected to the upper housing 1111, Figure 2 It can be understood as a schematic diagram that the constant temperature heating device 1200 and the rapid cooling device 1300 are distributed in the lower shell 1112.

[0112] The device housing includes a shell 1110 and an opening and closing door 1120 . The opening and closing door 1120 is installed on the shell 1110 . The shell 1110 has a molding chamber 1101 . The opening and closing door 1120 is used to open or close the molding chamber 1101 .

[0113] The shell 1110 includes an upper shell 1111 and a lower shell 1112 connected to each other. The opening and closing door 1120 can be set on the upper shell 1111. The upper shell 1111 and the lower shell 1112 jointly define a molding chamber 1101. In some embodiments, the upper shell 1111 may have a molding chamber 1101, or the lower shell 1112 may have a molding chamber 1101. In this embodiment, the constant temperature heating device 1200 includes a hot air circulation pipeline, a circulating fan 1220 and a heating element 1230 (for example, a heating device using a high-frequency heating principle in the prior art may be selected). The inlet and the outlet of the hot air circulation pipeline are both connected to the molding chamber 1101, and the circulating fan 1220 and the heating element 1230 are arranged in the hot air circulation pipeline. The hot air circulation pipeline includes a heating pipe 1211 and a gas return pipe 1212. The outlet of the heating pipe 1211 is connected to the molding chamber 1101, and the inlet of the heating pipe 1211 is connected to the circulating fan 1220. The heating pipe 1211 is provided with a heating element 1230 to heat the gas in the heating pipe 1211. The inlet of the gas return pipe 1212 is connected to the molding chamber 1101, and the outlet of the gas return pipe 1212 is connected to the circulating fan 1220.

[0114] In this embodiment, the heat supply pipe 1211 , the gas return pipe 1212 , the circulation fan 1220 and the heating element 1230 may all be arranged in the lower shell 1112 .

[0115] When the circulating fan 1220 and the heating element 1230 are working, the heated air flow enters the molding chamber 1101 through the hot air circulation pipeline, so that the temperature of the molding chamber 1101 reaches the set temperature (for example, 120-160°C), and then the catheter is placed in the molding chamber 1101 and continuously heated (generally the heating time can be a few seconds), so that the catheter enters the heat-softened state and softens.

[0116] Alternatively, the catheter may be placed in the molding chamber 1101 first, and then the temperature of the molding chamber 1101 is made to reach a set temperature to achieve the thermal softening process of the catheter.

[0117] Of course, the set temperature here is not limited to 120-160° C., and can be set specifically according to the actual needs of the shaped catheter. For example, different set temperatures can be set according to different materials of the catheter.

[0118] It should be noted that the catheter molding device also includes a temperature sensor 1600, which is arranged in the molding chamber 1101. Of course, it should be noted that the catheter molding device also includes a controller, which has a temperature control module. The temperature sensor 1600 can be connected to the temperature control module. At the same time, the temperature control module can be connected to the heating element 1230 and the circulating fan 1220 at the same time, so as to control the working state of the heating element 1230 according to the temperature feedback of the temperature sensor 1600 (such as a thermocouple with higher sensitivity). For example, when the temperature of the molding chamber 1101 is too low, the temperature control module controls the heating element 1230 to increase the power (generally speaking, the set temperature can be reached in a few tenths of a second) and increase the speed of the circulating fan 1220. When the temperature of the molding chamber 1101 is too high, the temperature control module controls the heating element 1230 to reduce the power and reduce the speed of the circulating fan 1220, so that the temperature of the molding chamber 1101 during the heating process is constant, and the temperature control module is used to keep the temperature of the catheter stable and controllable when it is heated and softened.

[0119] Generally speaking, the molding temperature of medical catheters is between 120℃-160℃. The catheter molding equipment is designed to control the temperature between 0℃-300℃, with a control accuracy of ±2℃.

[0120] In addition, it should be noted that in order to achieve rapid cooling of the molding chamber 1101, in the present embodiment, the rapid cooling device 1300 includes a cooling pipeline, a refrigerant tank 1320, a heat sink 1330 (for example, an existing radiator (using a structure combining an existing fan and a heat dissipation capillary), similar to a computer CPU radiator) and a compressor 1340 (for example, a micro compressor 1340 is selected). The heat sink 1330, the refrigerant tank 1320 and the compressor 1340 are sequentially arranged in the cooling pipeline, wherein part of the cooling pipeline is arranged in the molding chamber 1101 to cool the molding chamber 1101. The cooling pipeline includes a refrigerant supply pipe 1311 and a refrigerant return pipe 1312, the compressor 1340 is arranged in the refrigerant supply pipe 1311, and the heat sink 1330 is arranged in the refrigerant return pipe 1312.

[0121] According to the flow direction of the condenser, the section of the pipeline from the outlet of the condenser tank 1320 to the end of the partial cooling pipeline passing through the molding chamber 1101 can be understood as the condenser supply pipe 1311, and the pipeline between the end of the partial cooling pipeline passing through the molding chamber 1101 and the inlet of the condenser can be understood as the condenser return pipe 1312. Part of the condenser return pipe 1312 is arranged on the surrounding walls of the molding chamber 1101 (the molding chamber 1101 can be understood as a structure with a cubic structure space) to cool the molding chamber 1101.

[0122] Specifically, the refrigerant in the condenser tank 1320 can be transported to the compressor 1340 through the condenser supply pipe 1311, and then transported to the molding chamber 1101 through the compressor 1340 and the condenser return pipe 1312, so that the temperature of the molding chamber 1101 drops sharply to room temperature (for example, 25°C) or low temperature (0°C~20°C), and the heat dissipated out of the molding chamber 1101 is dissipated into the air by the heat sink 1330, and finally the refrigerant flows back to the condenser tank 1320 to participate in the circulation again.

[0123] That is to say, the compressor 1340 can extract the refrigerant in the refrigerant tank 1320 and transport it to the surrounding of the molding chamber 1101 through the refrigerant supply pipe 1311 to perform a heat exchange process to cool the molding chamber 1101. The heat sink 1330 is used to dissipate the heat of the condenser in the condenser return pipe 1312 into the air.

[0124] In this embodiment, the condenser supply pipe 1311 , the condenser return pipe 1312 , the condenser tank 1320 , the heat sink 1330 , and the compressor 1340 may all be disposed in the lower case 1112 .

[0125] It should be noted that in order to facilitate the control of the catheter cooling process, the controller also has a rapid cooling module, which is used to control the opening or closing of the rapid cooling of the catheter shaping equipment, so as to control the rapid cooling and shaping of the catheter in the heat-softened state.

[0126] For example, the quick cooling module can be connected to the compressor 1340 and the heat sink 1330 at the same time. The quick cooling module can control the start or stop of the compressor 1340. At the same time, the quick cooling module can also control the start or stop of the heat sink 1330. When the molding chamber 1101 needs to be cooled down, the quick cooling module controls the compressor 1340 and the heat sink 1330 to start at the same time, or, when the molding chamber 1101 needs to stop cooling down, the quick cooling module controls the compressor 1340 and the heat sink 1330 to stop at the same time.

[0127] In other embodiments, the rapid cooling device 1300 can also be other types of devices. For example, through carbon dioxide refrigeration, the rapid cooling device 1300 includes a carbon dioxide storage bottle, a pressure reducing valve (for example, an electromagnetic pressure reducing valve can be selected) and an evaporator connected in sequence. The rapid cooling device 1300 also includes a transmission insulation pipe, and the evaporator is connected to the molding chamber 1101 through the transmission insulation pipe.

[0128] The carbon dioxide storage bottle stores the cooling medium, and outputs a certain flow of carbon dioxide through the electromagnetic pressure reducing valve. The carbon dioxide passes through the evaporator to convert the liquid carbon dioxide in the carbon dioxide storage bottle into gaseous carbon dioxide, which is then transmitted to the molding chamber 1101 through the transmission insulation pipe, and the molding chamber 1101 is quickly cooled, so that the catheter can complete rapid cooling and molding.

[0129] The carbon dioxide storage bottle, the pressure reducing valve, the evaporator and the transmission insulation pipe can all be arranged in the lower shell 1112.

[0130] Among them, the transmission insulation pipe has a condensing agent injection port, and the condensing agent injection port is distributed on the four walls of the molding chamber 1101. Carbon dioxide is injected into the molding chamber 1101 through the condensing agent injection port to realize the cooling process of the catheter.

[0131] It should be noted that, in some embodiments, the catheter shaping device can simultaneously have the above-mentioned rapid cooling device 1300 using a cooling pipeline, a refrigerant tank 1320, a heat sink 1330 and a compressor 1340, as well as a rapid cooling device 1300 using carbon dioxide refrigeration, so that one of the rapid cooling devices 1300 can be used as an emergency.

[0132] For example, when one of the rapid cooling devices 1300 fails, another rapid cooling device 1300 can be selected to cool the catheter, or, according to actual needs, one of the rapid cooling devices 1300 can be selected to cool the catheter, or, both rapid cooling devices 1300 can be used to cool the catheter at the same time.

[0133] In addition, it should be noted that in the present embodiment, a slot 1102 is provided in the molding chamber 1101 , and the slot 1102 is used to limit the catheter universal molding liner shaft 200 . Specifically, the catheter universal molding liner shaft 200 of the catheter can be inserted into the slot 1102 .

[0134] Among them, the opening and closing door 1120 installed on the upper shell 1111 is provided with a duct opening. Specifically, in this embodiment, the opening and closing door 1120 includes a first opening and closing part and a second opening and closing part. The first opening and closing part and the second opening and closing part can be slidably arranged on the upper shell 1111. The first opening and closing part and the second opening and closing part realize the opening or closing of the opening and closing door 1120 during the up and down opening and closing process. The duct opening includes a first opening part 1121 and a second opening part 1122. The first opening part 1121 and the second opening part 1122 are respectively arranged in the first opening and closing part and the second opening and closing part. When the first opening and closing part and the second opening and closing part are close to each other to make the opening and closing door 1120 closed, the first opening part 1121 and the second opening part 1122 are combined to form a circular duct opening, which can prevent the temperature loss in the molding chamber 1101.

[0135] At the same time, when the first opening 1121 and the second opening 1122 are combined to form a circular catheter opening, the catheter can pass through the catheter opening so that the catheter head end stands upright in the center of the molding chamber 1101. In this way, in some cases, the coating on the outside of the catheter will not contact the inner wall of the molding chamber to avoid damage to the coating. Alternatively, when the first opening and closing portion and the second opening and closing portion are separated from each other so that the opening and closing door 1120 is open, the first opening 1121 and the second opening 1122 are separated from each other, which can facilitate the catheter to be taken out of or put into the molding chamber 1101.

[0136] In addition, the catheter shaping device also includes a human-computer interaction screen 1400 and multiple buttons 1500. In this embodiment, the number of buttons 1500 is four, and the four buttons 1500 can be a start button 1500, a pause button 1500, a door opening and closing button 1500 and a temperature adjustment knob, respectively. The human-computer interaction screen is arranged on the upper shell 1111 of the device housing.

[0137] The control module also has an operation module, which can be connected to the temperature control module and the rapid cooling module at the same time. The human-machine exchange screen and all buttons 1500 are connected to the operation module. In this way, the human-machine exchange screen can be used to monitor the status of the molding room 1101 and the status of the program running steps in real time.

[0138] At the same time, the human-computer exchange screen can also realize the temperature setting of the molding chamber 1101, the catheter heating time setting or the catheter cooling time setting and the program selection (for example, selecting the catheter heating program, that is, starting the constant temperature heating device 1200 to heat the molding chamber 1101, or, for example, selecting the catheter cooling program, that is, starting the rapid cooling device 1300 to cool the molding chamber 1101).

[0139] The operation module can also be connected to the opening and closing door 1120. The start button 1500, the pause button 1500, the door opening and closing button 1500 and the temperature adjustment knob can respectively control the start, pause, opening or closing of the opening and closing door 1120 and temperature adjustment of the catheter shaping device.

[0140] A catheter shaping method is also provided in an embodiment of the present invention, which uses a catheter universal shaping liner shaft 200 and a shaping device to shape the catheter (for specific details about the structure and principle of the catheter universal shaping liner shaft 200 and the shaping device, please refer to the above-mentioned related content and will not be repeated here).

[0141] Specifically, the catheter shaping method can use the catheter shaping device mentioned above to shape the catheter tip.

[0142] Among them, the catheter shaping methods include:

[0143] Shaping the catheter universal shaping liner shaft 200; the steps of shaping the catheter universal shaping liner shaft 200 include: inserting the catheter universal shaping liner shaft 200 between adjacent first shaping wheels 120 and bypassing at least one first shaping wheel 120.

[0144] Specifically, first unpack the sterile packaging of the catheter universal molding inner liner shaft 200, take out the inner liner of the catheter universal molding inner liner shaft 200, pass the universal molding inner liner through the molding wheel (which can be understood as a general term for the first molding wheel 120 and the second molding wheel 140) on the molding plate 100, and bend it into a desired shape. After the bending is completed, take out the molded catheter universal molding inner liner shaft 200.

[0145] Insert the catheter universal shaping liner shaft 200 that has been shaped into the catheter; specifically, insert the catheter universal shaping liner shaft 200 into the catheter from the head end of the medical catheter.

[0146] The catheter universal molding liner shaft 200 with the catheter is heated (i.e., thermoplastic process). Specifically, the catheter universal molding liner shaft 200 with the medical catheter is placed upright in the slot 1102 in the molding chamber 1101, the opening and closing door 1120 of the molding chamber 1101 is closed, and the heating temperature, cooling temperature and switching time required for molding are input on the human-computer interaction screen 1400 of the catheter molding device (the switching time here can be understood as the time required to switch to cooling the catheter after the heating of the catheter is completed, and can be understood as the time to switch to other states (such as issuing an alarm) after the catheter molding is completed after cooling the catheter for a certain period of time), and then the catheter molding device is started.

[0147] The circulating fan 1220 of the constant temperature heating device 1200 is started first, and the heating element 1230 starts to heat up after a delay period. The temperature sensor constantly monitors and feeds back the temperature in the molding chamber 1101 to keep the temperature stable during molding.

[0148] The catheter universal molding liner shaft 200 with a catheter that has been heated is cooled. Specifically, when the heating molding time is over, the rapid cooling device 1300 receives feedback, and the micro compressor 1340 starts to pump the condenser into the condenser return pipe 1312 surrounding the molding chamber 1101, and returns to the condenser tank 1320 through the heat dissipation element 1330, thereby completing the rapid cooling of the molding chamber 1101. When the temperature in the molding chamber 1101 reaches the set temperature (for example, 10 degrees Celsius), the cooling is stopped to maintain the set temperature. After setting the temperature for a certain time (the set temperature can be set according to actual conditions), the cooling and molding process of the catheter is completed, and an alarm is issued (it can be understood here that when the temperature sensor 1600 obtains a temperature of 10 degrees Celsius, the temperature sensor 1600 feeds back data to the human-machine exchange screen, and the human-machine interaction screen 1400 issues a warning), the molded medical catheter and the catheter universal molding liner shaft 200 are taken out, and the catheter universal molding liner shaft 200 in the medical catheter is taken out to obtain the finished product.

[0149] If carbon dioxide is used for cooling, after the hot molding is completed, the electromagnetic pressure reducing valve is opened, and the liquid carbon dioxide is converted into gas through the action of the evaporator, and the carbon dioxide is brought to the molding chamber 1101 through the transmission insulation tube to quickly cool the catheter. After the molding is completed, the electromagnetic pressure reducing valve is closed, the molding is completed, and the molded medical catheter and the catheter universal molding liner shaft 200 are taken out, and the catheter universal molding liner shaft 200 in the medical catheter is taken out to obtain the finished product.

[0150] In some embodiments, the catheter shaping method may also be to use a catheter universal shaping liner shaft 200 and a spiral shaper 300, wherein the spiral shaper 300 includes a shaping rod, and the shaping rod includes a plurality of column structures 310 connected in sequence, and the diameters of two adjacent column structures 310 are different.

[0151] Specifically, the catheter shaping method can use the catheter shaping device mentioned above to shape the catheter tip.

[0152] Catheter shaping methods include:

[0153] Shaping the catheter universal shaping liner shaft 200; the steps of shaping the catheter universal shaping liner shaft 200 include: spirally winding the catheter universal shaping liner shaft 200 around the outer wall of at least one column structure 310. Specifically, a spiral catheter tip (which can be understood as a catheter tip with continuous tortuosity or more bends) can be shaped using a shaper. Taking the C5, C6, and C7 segments of the cerebral blood vessels as an example, a shaper is used to select a 4mm column structure 310 and a 3mm column structure 310 for winding (the winding sizes need to be wound in order from large to small).

[0154] During the actual operation, the hand can be clenched into a fist with the fist facing oneself and winding can be performed in the direction of the thumb. The direction indicated by the other four fingers when clenched can be understood as the spiral winding direction of the catheter universal molded liner shaft 200. For example, the thumb of the left hand points to the left, and the thumb of the right hand points to the right, so as to facilitate the winding of the catheter universal molded liner shaft 200 with different spiral directions.

[0155] At this time, the direction of the left hand winding is the shaping structure of the left cerebral blood vessels (such as Fig.12 The right-hand winding direction is the shaping structure of the right cerebral vascular catheter (as shown in Fig.13 shown).

[0156] Insert the catheter universal molding liner shaft 200 that has been molded into the catheter.

[0157] The catheter universal molding liner shaft 200 which is sleeved with a catheter is heated. The specific heating molding process can refer to the above-mentioned thermoplastic process and will not be repeated here.

[0158] The heating-completed catheter universal plastic liner shaft 200 with a catheter is cooled down. The specific cooling process can refer to the above-mentioned cooling-down process of the heating-completed catheter universal plastic liner shaft 200 with a catheter, which will not be repeated here.

[0159] To summarize, the molding device includes a first mounting plate 110 and a plurality of first molding wheels 120, wherein the plurality of first molding wheels 120 are arranged on the first mounting plate 110; wherein, at least one first molding wheel 120 is used to limit the catheter universal molding liner shaft 200 so as to allow the catheter universal molding liner shaft 200 to bend.

[0160] By inserting the catheter universal shaping liner shaft 200 between adjacent first shaping wheels 120 and bypassing at least one first shaping wheel 120, a variety of curved shapes of the catheter universal shaping liner shaft 200 can be shaped, including some complex curved shapes of the catheter universal shaping liner shaft 200. The shaped catheter universal shaping liner shaft 200 is inserted into the catheter to support the catheter head end, thereby shaping the catheter tip into a complex curved shape to be suitable for blood vessels with more complex curved shapes.

[0161] The catheter molding device includes a constant temperature heating device 1200, a rapid cooling device 1300, a device housing and the above-mentioned molding device, the device housing has a molding chamber 1101, the molding device also includes a catheter universal molding liner shaft 200, the catheter universal molding liner shaft 200 is used to be inserted into the catheter and is arranged in the molding chamber 1101, wherein the constant temperature heating device 1200 is used to heat the molding chamber 1101, and the rapid cooling device 1300 is used to cool the molding chamber 1101, and the catheter molding device has all the functions of the above-mentioned molding device.

[0162] The catheter shaping method adopts a catheter universal shaping liner shaft 200 and a shaping device to shape the catheter, the shaping device includes a first mounting plate 110 and a plurality of first shaping wheels 120, the plurality of first shaping wheels 120 are arranged on the first mounting plate 110, wherein at least one first shaping wheel 120 is used to limit the catheter universal shaping liner shaft 200 so as to bend the catheter universal shaping liner shaft 200; the catheter shaping method includes: shaping the catheter universal shaping liner shaft 200; the steps of shaping the catheter universal shaping liner shaft 200 include: inserting the catheter universal shaping liner shaft 200 between adjacent first shaping wheels 120 and bypassing at least one first shaping wheel 120; inserting the shaped catheter universal shaping liner shaft 200 into the catheter; heating the catheter universal shaping liner shaft 200 sleeved with the catheter; cooling the heated catheter universal shaping liner shaft 200 sleeved with the catheter.

[0163] By inserting the catheter universal shaping liner shaft 200 between adjacent first shaping wheels 120 and bypassing at least one first shaping wheel 120, a variety of curved shapes of the catheter universal shaping liner shaft 200 can be shaped, including some complex curved shapes of the catheter universal shaping liner shaft 200. The shaped catheter universal shaping liner shaft 200 is inserted into the catheter to support the catheter head end, and then the catheter is heated and cooled to shape the catheter tip into a complex curved shape, so as to be suitable for blood vessels with more complex curved shapes.

[0164] The catheter shaping method adopts a catheter universal shaping liner shaft 200 and a spiral shaper 300, wherein the spiral shaper 300 includes a shaping rod, and the shaping rod includes a plurality of column structures 310 connected in sequence, wherein the diameters of two adjacent column structures 310 are different; the catheter shaping method includes: shaping the catheter universal shaping liner shaft 200; the steps of shaping the catheter universal shaping liner shaft 200 include: spirally winding the catheter universal shaping liner shaft 200 around the outer wall of at least one column structure 310; inserting the shaped catheter universal shaping liner shaft 200 into the catheter; heating the catheter universal shaping liner shaft 200 sleeved with the catheter; and cooling the heated catheter universal shaping liner shaft 200 sleeved with the catheter.

[0165] By spirally winding the catheter universal molding inner liner shaft 200 around the outer wall of at least one column structure 310, the catheter universal molding inner liner shaft 200 can be molded into a variety of complex curved shapes. The molded catheter universal molding inner liner shaft 200 is inserted into the catheter to support the catheter head end. Then, by heating and cooling the catheter, the catheter tip can be molded into a complex curved shape to be suitable for more blood vessels with complex curved shapes.

[0166] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A shaping device, characterized in that: include: a first mounting plate; as well as A plurality of first molding wheels, wherein the plurality of first molding wheels are disposed on the first mounting plate; Among them, at least one of the first molding wheels is used to limit the universal molding liner shaft of the catheter so that the universal molding liner shaft of the catheter can bend.

2. The shaping device according to claim 1, characterized in that: The first molding wheel is provided with a groove, and the groove surrounds the peripheral wall of the first molding wheel.

3. The shaping device according to claim 1, characterized in that: The plurality of first molding wheels are distributed in an array, and the plurality of first molding wheels are located on the same side wall of the first mounting plate.

4. The shaping device according to claim 1, characterized in that: The molding device also includes a second mounting plate and a plurality of second molding wheels. The first mounting plate is rotatably connected to the second mounting plate, and the plurality of second molding wheels are arranged on the second mounting plate.

5. The shaping device according to claim 1, characterized in that: The shaping device also includes a catheter universal shaping liner shaft, and the catheter universal shaping liner shaft is used to be inserted into the catheter; Among them, the catheter universal plastic liner shaft includes a plastic core rod and a spiral member wound around the plastic core rod, and the spiral member is used to support the inner wall of the catheter.

6. The shaping device according to claim 5, characterized in that: The spacing between adjacent first molding wheels is greater than or equal to the outer diameter of the spiral member.

7. The shaping device according to claim 5, characterized in that: At least one end of the plastic core rod is in a hemispherical structure.

8. The shaping device according to claim 1, characterized in that: The shaping device also includes a spiral shaper, and the spiral shaper includes a shaping rod. The shaping rod includes a plurality of column structures connected in sequence, and the diameters of two adjacent column structures are different.

9. The shaping device according to claim 8, characterized in that: The spiral shaping device also includes a handle, which is connected to one of the column structures of the shaping rod.

10. A catheter shaping device, characterized in that: It includes a constant temperature heating device, a rapid cooling device, an equipment housing and the molding device according to claim 1, wherein the equipment housing has a molding chamber, and the molding device also includes a catheter universal molding liner shaft, which is used to be inserted into the catheter and is arranged in the molding chamber, wherein the constant temperature heating device is used to heat the molding chamber, and the rapid cooling device is used to cool the molding chamber.

11. The catheter shaping device according to claim 10, characterized in that The constant temperature heating device includes a hot air circulation pipeline, a circulation fan and a heating element. The inlet and the outlet of the hot air circulation pipeline are both connected to the molding chamber. The circulation fan and the heating element are arranged in the hot air circulation pipeline.

12. The catheter shaping device according to claim 10, characterized in that The rapid cooling device comprises a cooling pipeline, a refrigerant tank, a heat sink and a compressor, wherein the heat sink, the refrigerant tank and the compressor are sequentially arranged on the cooling pipeline; Part of the cooling pipeline is arranged in the molding chamber to cool the molding chamber.

13. The catheter shaping device according to claim 10, characterized in that The rapid cooling device comprises a carbon dioxide storage bottle, a pressure reducing valve and an evaporator which are connected in sequence, and the evaporator is connected to the molding chamber.

14. The catheter shaping device according to claim 10, characterized in that A slot is provided in the molding chamber, and the slot is used to limit the universal molding liner shaft of the catheter.

15. The catheter shaping device according to claim 10, characterized in that The device housing includes a shell and an opening and closing door, wherein the shell has the molding chamber, and the opening and closing door is installed in the shell, and the opening and closing door is used to open or close the molding chamber; wherein the opening and closing door is provided with a conduit opening.

16. The catheter shaping device according to claim 10, characterized in that The catheter shaping device also includes a human-machine interaction screen, and the human-machine interaction screen is arranged on the device housing.

17. A catheter shaping method, characterized in that: The catheter is shaped by using a catheter universal shaping liner shaft and a shaping device, wherein the shaping device comprises a first mounting plate and a plurality of first shaping wheels, wherein the plurality of first shaping wheels are arranged on the first mounting plate, wherein at least one of the first shaping wheels is used for limiting the position of the catheter universal shaping liner shaft so as to bend the catheter universal shaping liner shaft; The catheter shaping method comprises: The step of shaping the catheter universal shaping inner liner shaft comprises: Insert the catheter universal molding liner shaft between adjacent first molding wheels and bypass at least one of the first molding wheels; Insert the shaped catheter universal shaping liner shaft into the catheter; heating a catheter universal plastic liner shaft sleeved with a catheter; The heated catheter universal plastic liner shaft with the catheter sleeve is cooled down.

18. A catheter shaping method, characterized in that: A catheter universal shaping liner shaft and a spiral shaping device are used, wherein the spiral shaping device comprises a shaping rod, and the shaping rod comprises a plurality of column structures connected in sequence, and the diameters of two adjacent column structures are different; The catheter shaping method comprises: The step of shaping the catheter universal shaping inner liner shaft comprises: Helically winding the catheter universal shaping liner shaft around the outer wall of at least one cylindrical structure; Insert the shaped catheter universal shaping liner shaft into the catheter; heating a catheter universal plastic liner shaft sleeved with a catheter; The heated catheter universal plastic liner shaft with the catheter sleeve is cooled down.

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