Catheter expansion equipment

Abstract

The utility model provides a catheter expanding device, including an operating platform and an expanding die, a clamping and pushing unit, a heating unit and a cooling unit installed on the operating platform; the expanding die and the clamping and pushing unit are arranged relative to each other, and the two are on the same axis on the operating platform, and the clamping and pushing unit is movably connected to the operating platform relative to the expanding die, and is used to clamp the catheter close to or away from the expanding die; the expanding die includes a main body and an expanding cone section, the expanding cone section is arranged close to one end of the clamping and pushing unit, and the main body is arranged at one end away from the clamping and pushing unit, and is connected to the expanding cone section; the diameter of the expanding cone section gradually decreases along the direction close to the clamping and pushing unit; the heating unit is arranged around the main body of the expanding die, and is used to heat the expanding die. The utility model can solve the problem that the traditional catheter expanding device needs artificial positioning and force application throughout the whole process, resulting in a smaller shape of the bell mouth after forming, and is very prone to obvious tilting, and the production efficiency is also low.

Description

Technical Field

[0001] The utility model relates to the technical field of medical consumables processing, in particular to a catheter expanding device. Background Art

[0002] The catheter expansion equipment is used in the expansion process of the suction catheter of the egg retrieval needle. The end of the suction catheter of the egg retrieval needle is heated and formed by the expansion mold, and then cooled and formed into a trumpet mouth, which provides a safe suction channel for collecting oocytes and ensures that the oocytes are not damaged by squeezing when they are taken out.

[0003] Traditional catheter expansion equipment consists of a heating device and an expansion mold. A person holds the suction catheter and inserts it into the cone section of the expansion mold. After starting the equipment heating program, a certain amount of force is manually applied for a certain period of time so that the part of the suction catheter end that contacts the cone section area is heated and softened. Under the action of the thrust, the catheter end is stretched open by the mold to form a bell mouth, which is then fixed after natural cooling. However, this equipment requires manual positioning and force application throughout the process. The shape of the bell mouth after forming is small, and it is very easy to tilt significantly, and the production efficiency is also low. In addition, when the operator performs manual expansion, since it is necessary to manually apply force for a certain period of time to make the suction catheter end contact the cone section area of ​​the expansion mold, the high temperature during the heating process may also cause damage to the operator's skin.

[0004] It should be noted that the information disclosed in the background technology section of the utility model is only intended to deepen the understanding of the general background technology of the utility model, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Utility Model Content

[0005] The utility model aims to provide a catheter expanding device, which can solve the problem that the traditional catheter expanding device needs manual positioning and force application throughout the whole process, resulting in a smaller shape of the bell mouth after forming, which is very prone to obvious tilting and has low production efficiency.

[0006] In order to solve the above technical problems, the utility model provides a catheter expansion device, including an operating platform and an expansion die, a clamping and pushing unit, a heating unit and a cooling unit installed on the operating platform;

[0007] The flaring die and the clamping and pushing unit are arranged opposite to each other, and the two are on the same axis on the operating platform. The clamping and pushing unit is movably connected to the operating platform relative to the flaring die, and is used to clamp the catheter close to or away from the flaring die.

[0008] The flaring die comprises a main body and a flaring cone section, wherein the flaring cone section is arranged at one end close to the clamping and propulsion unit, and the main body is arranged at one end away from the clamping and propulsion unit and connected to the flaring cone section; the diameter of the flaring cone section gradually decreases in a direction close to the clamping and propulsion unit;

[0009] The heating unit is arranged around the main body of the expanding die and is used to heat the expanding die;

[0010] The cooling unit is arranged near the heating unit and is used for cooling the expanding die.

[0011] Optionally, the expanding mold also includes a lining core, which is arranged at one end close to the clamping propulsion unit, and the end of the lining core away from the clamping propulsion unit is connected to the end of the expanding cone section close to the clamping propulsion unit, the diameter of the lining core is smaller than the inner diameter of the catheter, and the lining core, the expanding cone section and the main body are coaxially arranged.

[0012] Optionally, the expanding mold further includes a limit block, which is disposed between the main body and the expanding cone section, and has a diameter greater than a maximum diameter of the expanding cone section, and the limit block is coaxially disposed with the expanding cone section.

[0013] Optionally, the main body of the expansion mold is made of heat-conductive material, the main body includes a heat-conductive column and a conductive column, the diameter of the heat-conductive column is larger than the diameter of the conductive column, and the conductive column is located between the heat-conductive column and the expansion cone section.

[0014] Optionally, the heating unit is arranged around the heat-conducting column, and the cooling unit is arranged around the heat-conducting column and / or the conductive column.

[0015] Optionally, the diameter of the heat-conducting column is greater than the maximum diameter of the flared cone section, and the diameter of the heat-conducting column is less than or equal to the minimum diameter of the flared cone section; and / or the diameter of the heat-conducting column is equal to the diameter of the limit block.

[0016] Optionally, a fixed seat is provided on the operating platform, and the fixed seat includes two oppositely arranged side panels and a connecting plate for connecting the two side panels, the connecting plate is connected to one end of the side panel away from the clamping propulsion unit, and forms a C-shaped accommodating space with the two side panels, the expanding mold and the heating unit are both located in the accommodating space, and the end of the expanding mold away from the clamping propulsion unit is connected to the connecting plate.

[0017] Optionally, a track conveying device cooperating with the clamping and propulsion unit is provided on the operating platform, and the extension direction of the track conveying device is parallel to the axial direction of the expanding mold. The clamping and propulsion unit can reciprocate along the track conveying device to approach or move away from the expanding mold.

[0018] Optionally, the cooling unit includes a plurality of cooling air outlets, and the plurality of cooling air outlets are evenly arranged on one side of the two side plates close to the expansion mold.

[0019] Optionally, the operating platform is provided with a pneumatic parameter adjustment knob and a stroke parameter adjustment knob connected to the clamping propulsion unit, the pneumatic parameter adjustment knob is used for the user to adjust the clamping air pressure and propulsion air pressure of the clamping propulsion unit, and the stroke parameter adjustment knob is used for the user to adjust the propulsion stroke of the clamping propulsion unit.

[0020] Optionally, a control panel is provided on the operating platform, and the clamping propulsion unit, the heating unit and the cooling unit are all communicatively connected to the control panel, and the control panel is used for the user to adjust at least one of the heating temperature, heating duration, cooling temperature, cooling duration and propulsion duration.

[0021] Compared with the prior art, the catheter expanding device provided by the utility model has the following beneficial effects: the catheter expanding device provided by the utility model comprises an operating platform and a expanding mold, a clamping propulsion unit, a heating unit and a cooling unit installed on the operating platform; the expanding mold and the clamping propulsion unit are arranged opposite to each other, and the two are on the same axis on the operating platform, and the clamping propulsion unit is movably connected to the operating platform relative to the expanding mold, and is used to clamp the catheter close to or away from the expanding mold; the expanding mold comprises a main body and a expanding cone section, the expanding cone section is arranged close to one end of the clamping propulsion unit, and the main body is arranged at one end away from the clamping propulsion unit and is connected to the expanding cone section; the diameter of the expanding cone section gradually decreases in the direction close to the clamping propulsion unit; the heating unit is arranged around the main body of the expanding mold, and is used to heat the expanding mold. Therefore, the catheter expanding device provided by the utility model integrates the expanding mold, the clamping and pushing unit, the heating unit and the cooling unit on the operating platform, so that the expanding device can automatically complete the cycle of the catheter expanding operation, solving the problem that the traditional catheter expanding device needs manual positioning and force application throughout the process, resulting in a smaller shape of the bell mouth after forming, and is prone to obvious tilting, and the production efficiency is also low, which greatly improves the processing efficiency and stability of the catheter expanding. In addition, when the catheter expanding device provided by the utility model expands the catheter, the end of the catheter to be expanded is brought into contact with the expanding cone section of the expanding mold through the clamping and pushing unit, so that the high temperature during the heating process can effectively avoid damage to the operator's skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of a catheter expansion device provided in one embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the structure of a flaring die in a catheter flaring device provided in one embodiment of the utility model;

[0024] Figure 3 A partial top view of a catheter expanding device provided in one embodiment of the utility model.

[0025] The reference numerals are as follows:

[0026] Operating platform-100; track conveying device-110; fixing seat-120; side plate-121; connecting plate-122; accommodating space-123; pneumatic parameter adjustment knob-130; stroke parameter adjustment knob-140; control panel-150; operation button-160; flaring die-200; flaring cone section-210; lining core-220; limit block-230; main body-240; heat conduction column-241; conduction column-242; clamping and propulsion unit-300; heating unit-400; cooling unit-500; cooling air outlet-510; fastener-600;

[0027] Conduit-10; Bell mouth-11. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the catheter expansion device proposed by the utility model in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will be clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation of the utility model. In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model. Any modification of the structure, change of the proportional relationship or adjustment of the size, in the case of the same or similar effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. The specific design features of the utility model disclosed herein include, for example, specific dimensions, directions, positions and shapes, which will be determined in part by the specific environment to be applied and used. Also, in the embodiments described below, sometimes the same reference numerals are used in common between different figures to represent the same parts or parts with the same functions, and their repeated descriptions are omitted. In this specification, similar reference numerals and letters are used to represent similar items, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures. In addition, if the method described herein includes a series of steps, the order of these steps presented herein is not necessarily the only order in which these steps can be performed, and some of the steps described may be omitted and / or some other steps not described herein may be added to the method.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. The singular forms "a", "an" and "the" include plural referents, the term "or" is generally used in a sense including "and / or", the term "several" is generally used in a sense including "at least one", the term "at least two" is generally used in a sense including "two or more", and the term "plurality" is generally used in a sense including "at least two".

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 utility model. In the description of the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be a connection between the inside of two elements or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the present utility model, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] The core idea of ​​the utility model is to provide a catheter expansion device that can solve one or more of the following technical problems:

[0032] (1) Ordinary stainless steel expansion molds have poor thermal conductivity, resulting in slower and smaller appearance of the catheter (such as the suction catheter bell mouth);

[0033] (2) Traditional catheter expansion equipment only has a heating function, but no catheter clamping, positioning, pushing and cooling functions. When the operator expands the catheter manually, he needs to manually apply force for a certain period of time to make the expanded end of the catheter (such as the suction catheter) contact the tapered area of ​​the expansion mold. Therefore, the production efficiency is low, and the high temperature generated during the heating process will also cause burns to the operator's skin.

[0034] (3) The traditional expansion mold has an unlimited position structure, which causes the catheter with higher hardness (such as the suction catheter) to be obviously skewed after the bell mouth is formed, resulting in poor product consistency.

[0035] It should be noted that, as can be understood by those skilled in the art, the catheter expansion device provided by the present invention can not only expand the suction catheter of the egg retrieval needle, but also expand other catheters except the suction catheter of the egg retrieval needle, and the present invention is not limited to this.

[0036] In order to realize the above idea, the utility model provides a catheter expansion device, please refer to Figures 1 to 3 ,in, Figure 1 A schematic diagram of the overall structure of a catheter expansion device provided in one embodiment of the utility model; Figure 2 A schematic diagram of the structure of a flaring die in a catheter flaring device provided in one embodiment of the utility model; Figure 3 This is a partial top view of a catheter expansion device provided by one embodiment of the utility model. Figures 1 to 3 As shown, the catheter expansion device provided by the utility model includes an operating platform 100 and an expansion die 200, a clamping and pushing unit 300, a heating unit 400 and a cooling unit 500 installed on the operating platform 100; the expansion die 200 and the clamping and pushing unit 300 are arranged opposite to each other, and the two are on the same axis on the operating platform 100, and the clamping and pushing unit 300 is movably connected to the operating platform 100 relative to the expansion die 200, and is used to clamp the catheter 10 close to or away from the expansion die 200, and the expansion die 200 includes a main body 24 0 and a flaring cone section 210, the flaring cone section 210 is arranged near one end of the clamping propulsion unit 300, the main body 240 is arranged at an end away from the clamping propulsion unit 300 and is connected to the flaring cone section 210; the diameter of the flaring cone section 210 gradually decreases along the direction approaching the clamping propulsion unit 300; the heating unit is arranged around the main body of the flaring mold 200, for heating the flaring mold 200; the cooling unit 500 is arranged near the heating unit 400, for cooling the flaring mold 200.

[0037] In the present application, the clamping and pushing unit 300 is used to clamp the catheter 10 and drive the catheter 10 to approach or move away from the flaring die 200, so that the end of the catheter 10 to be flared approaches or moves away from the flaring cone section 210. The heating unit 400 is used to heat the flaring die 200 after the end of the catheter 10 to be flared reaches the position of the flaring cone section 210, so that the end of the catheter 10 to be flared becomes soft due to the heat, so that the bell mouth 11 can be formed under the action of the flaring cone section 210. The cooling unit 500 is used to cool the flaring die 200 after the bell mouth 11 is formed at the end of the catheter 10 to be flared, so that the bell mouth 11 of the catheter 10 is cooled and shaped.

[0038] Therefore, the catheter expanding device provided by the utility model integrates the expanding mold 200, the clamping and pushing unit 300, the heating unit 400 and the cooling unit 500 on the operating platform 100, so that the expanding device can automatically complete the cycle of the expanding operation of the catheter 10, solving the problem that the traditional catheter expanding device needs manual positioning and force application throughout the process, resulting in the bell mouth 11 having a smaller shape after forming, and is prone to obvious tilting, and the problem of low production efficiency, greatly improving the processing efficiency and stability of the expansion of the catheter 10. In addition, when the catheter expanding device provided by the utility model expands the catheter 10, the end of the catheter 10 to be expanded is brought into contact with the expanding cone section 210 of the expanding mold 200 through the clamping and pushing unit 300, so that the high temperature during the heating process can effectively avoid damage to the skin of the operator.

[0039] Please continue to refer to Figure 2 ,like Figure 2 As shown, in some exemplary embodiments, the flaring die 200 further includes a liner core 220, the liner core 220 is connected to the flaring cone section 210, and the liner core 220, the main body 240 and the flaring cone section 210 are coaxially arranged. Specifically, the liner core 220 is arranged at an end close to the clamping and propulsion unit 300, and the end of the liner core 220 away from the clamping and propulsion unit 300 is connected to the end of the flaring cone section 210 close to the clamping and propulsion unit 300. The diameter of the liner core 220 is smaller than the inner diameter of the catheter 10, so that the end of the catheter 10 to be flared can pass through, thereby reaching the position of the flaring cone section 210. Therefore, by setting a liner core 220 at one end of the expanding mold 200, the liner core 220 can play a certain supporting role on the catheter 10 to ensure that the catheter 10 and the expanding mold 200 are coaxially arranged, thereby not only ensuring that the end of the catheter 10 to be expanded can be smoothly opened by the expanding cone section 210 of the expanding mold 200 to form the bell mouth 11 under the action of the thrust generated by the clamping propulsion unit 300, but also effectively preventing the catheter 10 with higher hardness from tilting after the bell mouth 11 is formed.

[0040] Please continue to refer to Figure 2 ,like Figure 2As shown, in some exemplary embodiments, the expansion mold 200 also includes a limit block 230, which is arranged between the main body 240 and the expansion cone section 210, and the diameter of the limit block 230 is larger than the maximum diameter of the expansion cone section 210, and the limit block 230 is coaxially arranged with the expansion cone section 210. Therefore, by setting a limit block 230 between the main body 240 and the flared cone section 210, the catheter 10 can be limited, so that after the end of the catheter 10 to be expanded is opened by the flared cone section 210 to form the bell mouth 11 and expands to the end face of the limit block 230 close to one end of the flared cone section 210, the large end face (i.e. the end face with the largest diameter) of the bell mouth 11 of the catheter 10 is supported by the end face of the limit block 230 and stops expanding, thereby effectively preventing the catheter 10 with higher hardness from being obviously skewed after the bell mouth 11 is formed, thereby ensuring the consistency of the bell mouth 11 of the catheter 10.

[0041] In some exemplary embodiments, the material of the flaring die 200 is S136 die steel, and the surface of the flaring die 200 is polished. Therefore, the catheter flaring equipment provided by the utility model uses the flaring die 200 made of S316 die steel with relatively excellent thermal conductivity, which not only allows the flaring die 200 to have good wear resistance and machining performance, but also allows the end of the catheter 10 to be fully heated, thereby making the forming speed of the bell mouth 11 of the catheter 10 faster. In addition, by polishing the surface of the flaring die 200, the surface of the flaring die 200 can be made smoother and flatter, thereby effectively avoiding the flaring die 200 from causing damage to the inner surface of the catheter 10 during the flaring process, further ensuring the surface quality of the bell mouth 11 after forming and the consistency of the catheter 10 product.

[0042] Furthermore, the main body 240 of the expansion die 200 is made of a heat-conducting material. Figure 2 The main body includes a heat-conducting column 241 and a conducting column 242. The diameter of the heat-conducting column 241 is larger than the diameter of the conducting column 242. The conducting column 242 is located between the heat-conducting column 241 and the flared cone section 210. Further, the diameter of the heat-conducting column 241 is larger than the maximum diameter of the flared cone section 210, and / or the diameter of the heat-conducting column 241 is equal to the diameter of the stop block 230. By providing the heat-conducting column 241, the heat received can be transferred to the flared cone section 210, and the end of the conduit 10 to be flared is heated to soften it.

[0043] In some exemplary embodiments, the heating unit 400 is arranged around the heat-conducting column 241, for example, the heating unit 400 is a heating coil (not shown in the figure), and the heating coil is arranged around the heat-conducting column 241. Thus, by setting the diameter of the heat-conducting column 241 of the flaring die 200 to the maximum diameter of the flaring cone section 210, and arranging the heating coil of the heating unit 400 around the heat-conducting column 241, it can be ensured that the heat generated during the operation of the heating coil can be smoothly transferred to the flaring cone section 210 through the heat-conducting column 241, so that the end to be flared of the catheter 10 can be softened by high temperature. It should be noted that, as can be understood by those skilled in the art, the heating unit 400 also includes a shell for wrapping the heating coil, and the shell of the heating unit 400 is fixed on the operating platform 100. In addition, it should be noted that, as can be understood by those skilled in the art, the heating unit 400 can also be other heating devices known to those skilled in the art that can achieve a heating effect.

[0044] In some exemplary embodiments, the cooling unit 500 is disposed around the heat-conducting column 241 and / or the conducting column 242. Thus, by disposing the cooling unit 500 around the heat-conducting column 241 and / or the conducting column 242, it is possible to ensure that the temperature of the expanding die 200 can be rapidly and evenly reduced, and thus the temperature of the bell mouth 11 of the conduit 10 can be rapidly and evenly reduced, thereby further ensuring the expanding effect, processing efficiency and stability of the conduit 10.

[0045] Please continue to refer to Figure 3 ,like Figure 3 As shown, in some exemplary embodiments, the operating platform 100 is provided with a track conveying device 110 that cooperates with the clamping and propulsion unit 300, and the extension direction of the track conveying device 110 is parallel to the axial direction of the expanding mold 200. The clamping and propulsion unit 300 can clamp the catheter 10 so that the catheter 10 reciprocates along the track conveying device 110 to approach or move away from the expanding mold 200. Therefore, by setting a track conveying device 110 parallel to the expanding mold 200 on the operating platform 100, it can be ensured that the clamping and propulsion unit 300 can drive the catheter 10 to reciprocate along the axial direction of the expanding mold 200, and further ensure that the clamping and propulsion unit 300 can smoothly propel the end of the catheter 10 to be expanded to the expanding cone section 210 of the expanding mold 200 and generate a thrust distributed along the axial direction of the expanding mold 200 on the catheter 10, thereby ensuring that the end of the catheter 10 to be expanded can be softened by heat and can be expanded by the expanding cone section 210 under the action of the thrust of the clamping and propulsion unit 300 to form a bell mouth 11.

[0046] Please continue to refer to Figure 1 and Figure 3 ,like Figure 1 and Figure 3 As shown, in some exemplary embodiments, a fixing seat 120 is provided on the operating platform 100, and the fixing seat 120 includes two oppositely arranged side plates 121 and a connecting plate 122 for connecting the two side plates 121, wherein the side plates 121 are arranged parallel to the flaring die 200, the connecting plate 122 is arranged perpendicular to the flaring die 200, and the connecting plate 122 is connected to one end of the side plate 121 away from the clamping and propulsion unit 300, and forms a C-shaped accommodation space 123 with the two side plates 121. The flaring die 200 and the heating unit 400 are both located in the accommodation space 123, and one end of the flaring die 200 away from the clamping and propulsion unit 300 is connected to the connecting plate 122. Therefore, by arranging the expanding mold 200 and the heating unit 400 in the accommodating space 123 defined by the fixing seat 120, it can not only ensure that the heat generated during the operation of the heating unit 400 can be smoothly transferred to the expanding cone section 210 through the heat conductive column 241, but also effectively prevent the heat generated during the operation of the heating unit 400 from causing burns to the skin of the operator.

[0047] Please continue to refer to Figure 3 ,like Figure 3 As shown, in some exemplary embodiments, the cooling unit 500 includes a plurality of cooling air outlets 510, and the plurality of cooling air outlets 510 are evenly arranged on one side of the two side plates 121 close to the expansion mold 200. Thus, by setting the cooling unit 500 to include a structure including a plurality of evenly arranged cooling air outlets 510, cold air can be evenly blown toward the expansion mold 200 through the cooling unit 500 to ensure that the temperature of the expansion mold 200 can be quickly and evenly reduced, thereby enabling the temperature of the bell mouth 11 of the conduit 10 to be quickly and evenly reduced, thereby further ensuring the expansion effect, processing efficiency and stability of the conduit 10. It should be noted that, as can be understood by those skilled in the art, the cooling unit 500 also includes a cold air source (not shown in the figure) for providing cold air to the plurality of cooling air outlets 510, and the cold air source can be but is not limited to an air compression device. In addition, it should be noted that, as can be understood by those skilled in the art, the cooling unit 500 can also be other cooling devices known to those skilled in the art that can have a cooling effect.

[0048] In some exemplary embodiments, the expanding die 200 is detachably mounted on the operating platform 100. Thus, the distance between the expanding die 200 and the clamping and pushing unit 300 can be adjusted according to the length of the catheter 10 to be expanded, so that the expanded end of the catheter 10 can smoothly abut against the expanding cone section 210 of the expanding die 200, so that the catheter expanding device provided by the utility model can be applicable to the expansion of catheters 10 of various lengths, thereby improving the scope of use of the catheter expanding device provided by the utility model. Specifically, as Figure 3 As shown, the expansion die 200 can be detachably mounted on the operating platform 100 via a fastener 600 , and the fastener 600 includes but is not limited to a bolt.

[0049] Please continue to refer to Figure 1 ,like Figure 1 As shown, in some exemplary embodiments, the operating platform 100 is provided with a pneumatic parameter adjustment knob 130 and a stroke parameter adjustment knob 140 connected to the clamping and propulsion unit 300, the pneumatic parameter adjustment knob 130 is used for the user to adjust the clamping air pressure and propulsion air pressure of the clamping and propulsion unit 300, and the stroke parameter adjustment knob 140 is used for the user to adjust the propulsion stroke of the clamping and propulsion unit 300. Thus, the user can adjust the clamping and propulsion air pressure of the clamping and propulsion unit 300 through the pneumatic parameter adjustment knob 130 according to the specific conditions of the catheter 10 to be expanded, and then adjust the clamping force (determined by the clamping air pressure) and thrust (determined by the propulsion air pressure) of the clamping and propulsion unit 300 on the catheter 10 according to the clamping parameters, and adjust the propulsion stroke of the clamping and propulsion unit 300 according to the stroke parameter adjustment knob 140, so as to ensure the expansion effect, processing efficiency and stability of the catheter 10.

[0050] Please continue to refer to Figure 1 ,like Figure 1As shown, in some exemplary embodiments, the operating platform 100 is provided with a control panel 150, and the clamping and propulsion unit 300, the heating unit 400 and the cooling unit 500 are all connected to the control panel 150 for communication, and the control panel 150 is used for the user to adjust at least one of the heating temperature, the heating duration, the cooling temperature, the cooling duration and the propulsion duration. Thus, the user can adjust the heating temperature and the heating duration of the heating unit 400, the cooling temperature and the cooling duration of the cooling unit 500 and the propulsion duration of the clamping and propulsion unit 300 through the control panel 150, so that the user can input appropriate parameters according to the specific conditions of the catheter 10 to be expanded, so as to further ensure the expansion effect, processing efficiency and stability of the catheter 10. It should be noted that, as can be understood by those skilled in the art, the control panel 150 can be, but is not limited to, a PLC (programmable logic controller) liquid crystal control panel.

[0051] In some exemplary embodiments, the control panel 150 is further used to store at least one of the heating temperature, heating duration, cooling temperature, cooling duration, and pushing duration adjusted by the user. Thus, by storing the heating temperature, heating duration, cooling temperature, cooling duration, and pushing duration adjusted by the user, the catheter expanding device provided by the utility model can automatically complete the expanding operation cycle directly according to the stored heating temperature, heating duration, cooling temperature, cooling duration, and pushing duration when expanding the same type of catheter 10, thereby further improving the processing efficiency and stability of the expanding of the catheter 10.

[0052] The specific working principle of the catheter expanding device provided by the utility model is briefly described below: first, the end of the catheter 10 (for example, the suction catheter) to be expanded passes through the liner core 220 of the expanding mold 200 and reaches the smallest end surface of the expanding cone section 210 of the expanding mold 200; after selecting the operation program suitable for the catheter 10, the operation button 160 is started to start working, and the clamping and pushing unit 300 clamps the catheter 10 (for example, the suction catheter) and pushes the end of the catheter 10 to be expanded to the expanding cone section 210, and the heating unit 400 starts to work, and the temperature is transferred to the expanding cone section 210 through the heat conducting column 241. The end of the catheter 10 (for example, the suction catheter) to be expanded will be heated and softened by the high temperature, and the thrust caused by the clamping and pushing unit 300 Next, after the end of the catheter 10 (for example, the suction catheter) to be expanded is formed into a bell mouth 11 by the expanding cone section 210 and expanded to the end face of the limit block 230 close to one end of the expanding cone section 210, the large end face (i.e., the end face with the largest diameter) of the bell mouth 11 of the catheter 10 (for example, the suction catheter) is supported by the end face of the limit block 230 and stops expanding. At this time, the heating unit 400 stops working, and the cooling unit 500 starts cooling. After waiting for the cooling to be completed and the shaping, the clamping and pushing unit 300 drives the catheter 10 (for example, the suction catheter) to return to its position and releases the catheter 10 (for example, the suction catheter). After taking out the catheter 10 (for example, the suction catheter), check the forming effect of the bell mouth 11. After confirming that it is correct, expand the next catheter 10.

[0053] In summary, compared with the prior art, the catheter expansion device provided by the utility model has the following beneficial effects:

[0054] (1) The catheter expanding device provided by the utility model integrates the expanding mold 200, the clamping and pushing unit 300, the heating unit 400 and the cooling unit 500 on the operating platform 100, so that the expanding device can automatically complete the cycle of the catheter 10 expanding operation, thereby solving the problem that the traditional catheter expanding device needs manual positioning and force application throughout the process, resulting in a smaller shape of the bell mouth 11 after forming, which is very prone to obvious tilting and low production efficiency, thereby greatly improving the processing efficiency and stability of the catheter 10 expanding.

[0055] (2) When the catheter 10 is expanded, the catheter expanding device provided by the utility model clamps the propulsion unit 300 to make the end of the catheter 10 to be expanded contact with the expanding cone section 210 of the expanding mold 200, thereby effectively avoiding the high temperature during the heating process from damaging the operator's skin.

[0056] (3) The catheter expanding device provided by the utility model uses the expanding die 200 made of S316 die steel with relatively excellent thermal conductivity, which not only allows the expanding die 200 to have good wear resistance and machining performance, but also allows the end of the catheter 10 to be fully heated, thereby making the forming speed of the bell mouth 11 of the catheter 10 faster.

[0057] (4) The catheter expanding device provided by the utility model can limit the catheter 10 by setting a limit block 230 on the expanding mold 200, thereby effectively preventing the catheter 10 with higher hardness from being obviously skewed after the bell mouth 11 is formed, thereby ensuring the consistency of the bell mouth 11 of the catheter 10.

[0058] It should be noted that, in the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0059] It should also be noted that the above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure content belong to the protection scope of the utility model. Obviously, technicians in this field can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations fall within the scope of the utility model and its equivalent technology, the utility model is also intended to include these modifications and variations.

Claims

1. A catheter expansion device, characterized in that: It includes an operating platform and a flaring die, a clamping and pushing unit, a heating unit and a cooling unit installed on the operating platform; The flaring die and the clamping and pushing unit are arranged opposite to each other, and the two are on the same axis on the operating platform. The clamping and pushing unit is movably connected to the operating platform relative to the flaring die, and is used to clamp the catheter close to or away from the flaring die. The flaring die comprises a main body and a flaring cone section, wherein the flaring cone section is arranged at one end close to the clamping and propulsion unit, and the main body is arranged at one end away from the clamping and propulsion unit and connected to the flaring cone section; the diameter of the flaring cone section gradually decreases in a direction close to the clamping and propulsion unit; The heating unit is arranged around the main body of the expanding die and is used to heat the expanding die; The cooling unit is arranged near the heating unit and is used for cooling the expanding die.

2. The catheter expansion device according to claim 1, characterized in that: The expanding mold also includes a lining core, which is arranged at one end close to the clamping propulsion unit, and the end of the lining core away from the clamping propulsion unit is connected to the end of the expanding cone section close to the clamping propulsion unit. The diameter of the lining core is smaller than the inner diameter of the catheter, and the lining core, the expanding cone section and the main body are coaxially arranged.

3. The catheter expansion device according to claim 1, characterized in that: The flaring die further comprises a limit block, which is arranged between the main body and the flaring cone section, and the diameter of the limit block is greater than the maximum diameter of the flaring cone section, and the limit block is coaxially arranged with the flaring cone section.

4. The catheter expansion device according to claim 3, characterized in that: The main body of the expansion mold is made of heat-conducting material, and the main body includes a heat-conducting column and a conductive column. The diameter of the heat-conducting column is larger than the diameter of the conductive column. The conductive column is located between the heat-conducting column and the expansion cone section.

5. The catheter expansion device according to claim 4, characterized in that: The heating unit is arranged around the heat-conducting column, and the cooling unit is arranged around the heat-conducting column and / or the conductive column.

6. The catheter expansion device according to claim 4, characterized in that: The diameter of the heat-conducting column is greater than the maximum diameter of the flared cone section, and the diameter of the heat-conducting column is less than or equal to the minimum diameter of the flared cone section; and / or the diameter of the heat-conducting column is equal to the diameter of the limit block.

7. The catheter expansion device according to claim 1, characterized in that: A fixed seat is provided on the operating platform, and the fixed seat includes two oppositely arranged side panels and a connecting plate for connecting the two side panels. The connecting plate is connected to one end of the side panel away from the clamping and propulsion unit, and forms a C-shaped accommodating space with the two side panels. The expanding mold and the heating unit are both located in the accommodating space, and the end of the expanding mold away from the clamping and propulsion unit is connected to the connecting plate.

8. The catheter expansion device according to claim 7, characterized in that: The cooling unit comprises a plurality of cooling air outlets, and the plurality of cooling air outlets are evenly arranged on one side of the two side plates close to the expansion mold.

9. The catheter expansion device according to claim 1, characterized in that: The operating platform is provided with a track conveying device matched with the clamping and propulsion unit, the extension direction of the track conveying device is parallel to the axial direction of the expansion mold, and the clamping and propulsion unit can reciprocate along the track conveying device to approach or move away from the expansion mold.

10. The catheter expansion device according to claim 1, characterized in that: The operating platform is provided with a pneumatic parameter adjustment knob and a stroke parameter adjustment knob connected to the clamping and propulsion unit, the pneumatic parameter adjustment knob is used for the user to adjust the clamping air pressure and propulsion air pressure of the clamping and propulsion unit, and the stroke parameter adjustment knob is used for the user to adjust the propulsion stroke of the clamping and propulsion unit; and / or, A control panel is provided on the operating platform, and the clamping propulsion unit, the heating unit and the cooling unit are all communicatively connected to the control panel, and the control panel is used for allowing a user to adjust at least one of the heating temperature, heating duration, cooling temperature, cooling duration and propulsion duration.

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