Built-in catheter device

Abstract

The invention aims at providing a built-in catheter device which comprises a built-in tube unit, the built-in tube unit comprises a catheter and a support assembly installed at the far end of the catheter, the support assembly comprises a first support and a second support, and the two supports both have an expansion state and a folded state, at least part of the magnetic area is included; the supporting rod unit comprises a supporting rod main body, an electromagnetic assembly arranged on the supporting rod main body and a control assembly connected with the electromagnetic assembly; when the built-in tube unit is implanted or taken out, the supporting rod unit is sleeved with the catheter, the electromagnetic assembly corresponds to the magnetic area, and the control assembly controls the form of the first support and / or the second support through the electromagnetic assembly. The urethral catheter is fixed in the urethra of the human body through the two supports, the urethral catheter is prevented from slipping off or sliding into the bladder, control is conducted through opening and closing of the supports of the supporting rod unit, and implantation and replacement of the built-in catheter unit are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an internal urinary catheter device. Background Art

[0002] Catheters are usually used for patients who cannot urinate on their own due to various reasons (such as post-surgery, urinary retention, urinary incontinence, neurological diseases, etc.). Urine is drained through the catheter to avoid overfilling of the bladder causing hydronephrosis and renal insufficiency. The catheters currently used in clinical practice are generally catheters with balloons. The balloon is inflated / injected with fluid to fix the catheter in the patient's bladder to prevent it from slipping. This type of catheter usually requires an additional channel for inflation / injection, and the operation of inserting a fixed catheter is more complicated. Summary of the invention

[0003] One object of the present application is to provide an internal urinary catheter device, so as to prevent the urinary catheter from slipping into or out of the bladder cavity, facilitate the implantation or removal of the urinary catheter, and facilitate the patient to control urination.

[0004] According to one aspect of the present application, an internal urinary catheter device is provided, the internal urinary catheter device comprising:

[0005] An internal tube unit, the internal tube unit comprising a urinary catheter and a bracket assembly, the urinary catheter having a proximal end and a distal end opposite to each other, the bracket assembly being mounted at the distal end of the urinary catheter, the bracket assembly comprising a first bracket and a second bracket, the first bracket being located at the distal end of the urinary catheter, the second bracket being a predetermined distance away from the distal end of the urinary catheter, the first bracket and the second bracket being both arranged to have an expanded state and a collapsed state and being constructed such that: when no external force is applied, the first bracket and / or the second bracket are in the expanded state, and when an external force is applied, the first bracket and / or the second bracket are in the collapsed state, and the first bracket and the second bracket both at least include a partial magnetic region;

[0006] A support rod unit, the support rod unit comprising a support rod body, an electromagnetic component and a control component, the electromagnetic component is arranged on the support rod body, and the control component is connected to the electromagnetic component;

[0007] When the internal tube unit is implanted or removed, the catheter is sleeved on the support rod unit, the electromagnetic component corresponds to the magnetic area, and the control component controls the shape of the first bracket and / or the second bracket by generating magnetic force or not generating magnetic force on the first bracket and / or the second bracket through the electromagnetic component.

[0008] In some embodiments, the support assembly further includes a support tube, the support tube is sleeved on the distal end of the catheter, and the first support and the second support are respectively connected to two ends of the support tube.

[0009] In some embodiments, the urinary catheter further comprises a catheter tip end, and the catheter tip end is connected to an end of the first bracket away from the distal end of the urinary catheter.

[0010] In some embodiments, the electromagnetic component includes a first electromagnetic component and a second electromagnetic component; when the catheter is mounted on the support rod unit, the first electromagnetic component and the second electromagnetic component correspond to the magnetic areas of the first bracket and the second bracket, respectively; the control component controls the magnetic force of the first electromagnetic component and / or the second electromagnetic component on the first bracket and / or the second bracket by controlling the on and off current of the first electromagnetic component and / or the second electromagnetic component, thereby controlling the shape of the first bracket and / or the second bracket.

[0011] In some embodiments, when the first stent is folded, the proximal end of the first stent remains stationary, and the distal end of the first stent moves toward the distal end of the urinary catheter.

[0012] In some embodiments, at least the portion of the first stent that can expand and contract is entirely configured as a magnetic region.

[0013] The magnetic force generated by the portion of the first electromagnetic component close to the distal end of the catheter is smaller than the magnetic force generated by the portion of the first electromagnetic component close to the proximal end of the catheter, or the first electromagnetic component includes at least two portions that generate magnetic forces respectively, and the portions of the first electromagnetic component gradually generate magnetic force in the order from close to the proximal end of the catheter to close to the distal end of the catheter.

[0014] In some embodiments, the internal tube unit further includes a urine control valve assembly, which is disposed at one end of the catheter away from the second bracket, and includes a magnetic assembly, and urination is controlled by opening and closing the magnetic assembly.

[0015] In some embodiments, the magnetic assembly includes a first magnetic tube and a second magnetic tube, the first magnetic tube and the second magnetic tube are both sleeved on the catheter, the first magnetic tube and the second magnetic tube are separated by a predetermined distance, one end of the first magnetic tube is an N pole and the other end is an S pole in the radial direction, one end of the second magnetic tube is an N pole and the other end is an S pole in the radial direction, and the catheter is made of elastic material at least between the first magnetic tube and the second magnetic tube.

[0016] When the urine control valve assembly is in a closed state, the catheter is in a twisted closed state, and without the effect of an external magnetic field, the N pole of the first magnetic tube and the S pole of the second magnetic tube attract each other and move closer together, and the S pole of the first magnetic tube and the N pole of the second magnetic tube attract each other and move closer together, and the first magnetic tube and the second magnetic tube exert a force on the catheter to keep the catheter twisted and closed.

[0017] When the urine control valve assembly is opened, the magnetic force between the first magnetic tube and the second magnetic tube is completely or partially offset by applying an external magnetic field, and the force applied by the first magnetic tube and the second magnetic tube to the catheter disappears or is smaller than the resilience of the catheter itself. The catheter recovers under the action of its own resilience and urination is started.

[0018] In some embodiments, the magnetic assembly includes: a first magnetic member, a second magnetic member, a first elastic member, and a second elastic member, the first elastic member and the second elastic member each include a concave surface and the two concave surfaces correspond to each other, the first magnetic member and the second magnetic member are respectively arranged on the concave surfaces of the first elastic member and the second elastic member, the first magnetic member and the second magnetic member have opposite polarities, the urinary catheter is located between the first magnetic member and the second magnetic member, and the urinary catheter is at least an elastic material between the first magnetic member and the second magnetic member,

[0019] When the urine control valve assembly is in a closed state, there is no external force acting on it, and the first magnetic member and the second magnetic member are attracted to each other, squeezing the catheter to close it; when the urine control valve assembly is opened, the first elastic member and the second elastic member are deformed by applying an external force, driving the first magnetic member to separate from the second magnetic member, and the squeezed and closed part of the catheter recovers under the action of its own resilience, so that the catheter is conducted and urination is started.

[0020] In some embodiments, a plurality of ridges and a plurality of grooves are arranged at intervals on opposite sides of the first magnetic member and the second magnetic member, the plurality of ridges of the first magnetic member correspond to the plurality of grooves of the second magnetic member, and the plurality of grooves of the first magnetic member correspond to the plurality of ridges of the second magnetic member. After the first magnetic member and the second magnetic member are in attraction contact, the plurality of ridges of the first magnetic member cooperate with the plurality of grooves of the second magnetic member, and the plurality of grooves of the first magnetic member cooperate with the plurality of ridges of the second magnetic member.

[0021] In some embodiments, the electromagnetic component also includes a third electromagnetic component. When the catheter is mounted on the support rod body, the third electromagnetic component corresponds to the urine control valve component. The control component controls the magnetic force of the third electromagnetic component on the first magnetic tube and the second magnetic tube by controlling the on / off current of the third electromagnetic component, thereby controlling the opening / closing state of the urine control valve assembly.

[0022] In some embodiments, the control component includes a first control switch, a second control switch, a third control switch and a power supply, the first electromagnetic component is connected to the first control switch and the power supply through a wire, the second electromagnetic component is connected to the second control switch and the power supply through a wire, and the third electromagnetic component is connected to the third control switch and the power supply through a wire.

[0023] In some embodiments, the control assembly further includes a housing for accommodating the first control switch, the second control switch, the third control switch, and the power supply.

[0024] In some embodiments, the urine control valve assembly further comprises an outer shell wrapped around the magnetic assembly.

[0025] In some embodiments, the first bracket includes a head end and a tail end and a plurality of first ridges connecting the head end and the tail end, wherein the plurality of first ridges extend from the tail end to the head end and converge at the head end; wherein a gap is provided between two adjacent first ridges to allow liquid to pass through the gap and enter the catheter, and when the first bracket is in an expanded state, the plurality of first ridges are bent outwardly away from the central axis of the catheter to form a cage shape; when the first bracket is in the collapsed state, the plurality of first ridges extend generally along the support rod body to form a columnar shape.

[0026] In some embodiments, the second bracket includes a mounting end and a plurality of second ridges with one end mounted on the mounting end, the other ends of the plurality of second ridges are suspended and facing away from the first bracket, when the second bracket is in an expanded state, the plurality of second ridges are bent outwardly away from the central axis of the catheter, and when the second bracket is in a collapsed state, the plurality of second ridges extend generally along the support rod body.

[0027] Compared with the prior art, the internal urinary catheter device provided by the present application comprises: an internal tube unit, the internal tube unit comprises a urinary catheter and a bracket assembly, the urinary catheter has a relative proximal end and a distal end, the bracket assembly is installed at the distal end of the urinary catheter, the bracket assembly comprises a first bracket and a second bracket, the first bracket is located at the distal end of the urinary catheter, the second bracket is a predetermined distance from the distal end of the urinary catheter, the first bracket and the second bracket are both arranged to have an expanded state and a collapsed state and are constructed as follows: when no external force is applied, the first bracket and / or the second bracket are in the expanded state, and when an external force is applied, the first bracket and / or the second bracket are in the collapsed state. The first bracket and / or the second bracket are in the retracted state, and the first bracket and the second bracket both include at least part of the magnetic area; the support rod unit, the support rod unit includes a support rod body, an electromagnetic component and a control component, the electromagnetic component is arranged on the support rod body, and the control component is connected to the electromagnetic component; when the built-in tube unit is implanted or removed, the catheter is sleeved on the support rod unit, the electromagnetic component corresponds to the magnetic area, and the control component generates or does not generate magnetic force on the first bracket and / or the second bracket through the electromagnetic component to control the shape of the first bracket and / or the second bracket. The first bracket is located in the bladder cavity to prevent the catheter from slipping out of the bladder cavity, and the second bracket is located in the urethral bulb to prevent the catheter from slipping into the bladder cavity. Both are used to fix the catheter inside the human urethra. The opening and closing of the first bracket and the second bracket can be controlled by the support rod unit, which is convenient for the implantation and replacement of the built-in tube unit. Furthermore, the catheter is also provided with a urine control valve, and autonomous urination is achieved by opening the urine control valve outside the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 A schematic structural diagram of an internal urinary catheter device according to an embodiment of the present application is shown, wherein the support assembly is in a folded state;

[0030] Figure 2 A cross-sectional view of the structure of an internal urinary catheter device according to an embodiment of the present application is shown, wherein the support assembly is in a folded state;

[0031] Figure 3 A schematic diagram of an internal tube unit structure according to an embodiment of the present application is shown, wherein the stent assembly is in an expanded state;

[0032] Figure 4 A cross-sectional view of an internal tube unit structure according to an embodiment of the present application is shown, wherein the stent assembly is in an expanded state;

[0033] Figure 5 An exploded view of a built-in pipe unit structure according to an embodiment of the present application is shown;

[0034] Figure 6 A schematic diagram of the structure of a first electromagnetic component according to an embodiment of the present application is shown;

[0035] Figure 7 A schematic diagram of a magnetic component structure according to an embodiment of the present application is shown, wherein the magnetic component is in an open state;

[0036] Figure 8 A schematic diagram of a magnetic assembly structure according to an embodiment of the present application is shown, wherein the magnetic assembly is in a closed state;

[0037] Fig. 9 A cross-sectional view of a magnetic assembly structure according to an embodiment of the present application is shown, wherein the magnetic assembly is in a closed state;

[0038] Fig.10 A schematic diagram of a magnetic assembly structure according to an embodiment of the present application is shown, wherein the magnetic assembly is in a closed state;

[0039] Fig.11 A cross-sectional view of a magnetic assembly structure according to an embodiment of the present application is shown, wherein the magnetic assembly is in a closed state;

[0040] Fig.12 A schematic diagram of a magnetic component structure according to an embodiment of the present application is shown, wherein the magnetic component is in an open state;

[0041] Fig.13 A cross-sectional view of a magnetic component structure according to an embodiment of the present application is shown, wherein the magnetic component is in an open state;

[0042] Fig.14 An exploded view of a support rod unit structure according to an embodiment of the present application is shown;

[0043] Fig.15 A control principle diagram of an electromagnetic component according to an embodiment of the present application is shown.

[0044] The same or similar reference numerals in the drawings represent the same or similar components.

[0045] Reference numerals

[0046] 100 internal tube unit, 110 urinary catheter, 111 catheter head, 120 bracket assembly, 121 first bracket, 122 second bracket, 123 support tube, 130 urine control valve assembly, 131 magnetic assembly, 1311 first magnetic tube, 1312 second magnetic tube, 1313 first magnetic member, 1314 second magnetic member, 1315 first elastic member, 1316 second elastic member, 132 outer shell;

[0047] 200 support rod unit, 210 support rod body, 220 electromagnetic assembly, 221 first electromagnetic component, 222 second electromagnetic component, 223 third electromagnetic component, 230 control assembly, 231 first control switch, 232 second control switch, 233 third control switch, 234 power supply, 235 shell. DETAILED DESCRIPTION

[0048] The present application is described in further detail below in conjunction with the accompanying drawings.

[0049] In the description of the present application, 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", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0050] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0053] In the description of the present application, “plurality” means two or more, unless otherwise clearly and specifically defined.

[0054] refer to Figure 1 , Figure 2 The structure diagram of the internal urinary catheter device is shown, and the internal urinary catheter device includes: an internal tube unit 100 and a support rod unit 200.

[0055] The internal tube unit 100 includes a urinary catheter 110 and a bracket assembly 120. The urinary catheter 110 has a relative proximal end and a distal end. The bracket assembly 120 is installed at the distal end of the urinary catheter 110. The bracket assembly 120 includes a first bracket 121 and a second bracket 122. The first bracket 121 is located at the distal end of the urinary catheter 110, and the second bracket 122 is a predetermined distance away from the distal end of the urinary catheter 110. The first bracket 121 and the second bracket 122 are both configured to have an expanded state and a collapsed state and are constructed as follows: when no external force is applied, the first bracket 121 and / or the second bracket 122 are in the expanded state, and when an external force is applied, the first bracket 121 and / or the second bracket 122 are in the collapsed state. The first bracket 121 and the second bracket 122 both include at least a partial magnetic area.

[0056] The support rod unit 200 includes a support rod body 210 , an electromagnetic component 220 and a control component 230 . The electromagnetic component 220 is disposed on the support rod body 210 , and the control component 230 is connected to the electromagnetic component 220 .

[0057] When the internal tube unit 100 is implanted or removed, the catheter 110 is sleeved on the support rod unit 200, the electromagnetic component 220 corresponds to the magnetic area, and the control component 230 controls the shape of the first bracket 121 and / or the second bracket 122 by generating magnetic force or not generating magnetic force on the first bracket 121 and / or the second bracket 122 through the electromagnetic component 220.

[0058] In some embodiments, the support rod unit 200 is used to implant the built-in tube unit 100 into the patient's bladder or urethra, and fix the built-in tube unit 100 in a suitable position in the patient's bladder or urethra, or remove the built-in tube unit 100 from the patient's bladder or urethra. When the built-in tube unit 100 is implanted, the control component 230 controls the electromagnetic component 220 to generate magnetic force. The magnetic force attracts the magnetic regions of the first bracket 121 and the second bracket 122, so that the first bracket 121 and the second bracket 122 are in a retracted state (refer to Figure 1 After the distal end of the catheter 110 including the first bracket 121 has entered the bladder, the control component 230 can first control the electromagnetic component 220 to stop generating magnetic force on the first bracket 121, so that the first bracket 121 returns to the expanded state (refer to Figure 3 The first bracket 121 in the expanded state can be stuck in the urethral opening of the bladder to prevent the catheter 110 from slipping out of the bladder cavity. At this time, the second bracket 122 of the built-in tube unit 100 is in the proper position of the urethral bulb. Then, the control component 230 controls the electromagnetic component 220 to stop generating magnetic force on the first bracket 121, so that the second bracket 122 returns to the expanded state (refer to Figure 3 In the expanded state, the second bracket 122 can be fixed to the bulbar urethra of the patient, thereby preventing the catheter 110 from sliding into the bladder cavity and fixing the catheter 110 in a suitable position. In some embodiments, the predetermined distance between the second bracket 122 and the distal end of the catheter 110 can be set based on the size of the patient's prostate, so that the second bracket 122 can be located in the bulbar urethra of the patient. Finally, the support rod unit 200 is taken out to complete the implantation of the built-in tube unit 100. When it is necessary to take out the built-in tube unit 100, the support rod unit 200 can be inserted into the catheter 110. The electromagnetic component 220 is controlled by the control component 230 to generate magnetic force on the first bracket 121 and the second bracket 122, so that the first bracket 121 and the second bracket 122 are changed to a retracted state, thereby taking out the support rod unit 200 and the built-in tube unit 100 together.

[0059] In some embodiments, reference Figure 3-5, the support assembly 120 also includes a support tube 123, the support tube 123 is sleeved at the distal end of the catheter 110, and the first support 121 and the second support 122 are respectively connected to the two ends of the support tube 123. In some embodiments, the length of the support tube 123 can be set based on the size of the patient's prostate, so that the second support 122 is a predetermined distance away from the distal end of the catheter 110, so that the second support 122 can be fixed at a suitable position of the urethral bulb. The diameter of the support tube 123 can be set based on the outer diameter of the selected catheter 110. The outer diameter of the catheter 110 can be selected based on the patient's urethra condition (for example, the patient's urethra diameter, whether the urethra is damaged, etc.). In some embodiments, the urethral tube 110 can be made of silica gel or other anti-stone materials, and the support tube 123 can be made of a polymer material that is harder than the urethral tube 110. The wall of the support tube 123 has sufficient radial tension, so that it will not be squeezed and deformed by the patient's excessively enlarged prostate to ensure that the urethral catheter 110 is unobstructed.

[0060] In some embodiments, the first bracket 121 , the second bracket 122 and the support tube 123 are integrally formed.

[0061] In some embodiments, reference Figure 3-5 , the catheter 110 also includes a catheter head 111, and the catheter head 111 is connected to an end of the first bracket 121 that is far away from the distal end of the catheter 110. During the process of inserting the support rod unit 200 into the catheter 110, the catheter head 111 can be used to locate the insertion position of the support rod unit 200. When the support rod unit 200 contacts the catheter head 111 and can no longer be inserted, the electromagnetic component 220 on the support rod body 210 corresponds exactly to the magnetic area included in the first bracket 121 and the second bracket 122. The catheter head 111 can be made of a polymer material that is harder than the urethral tube 110, and its hardness is equivalent to that of the support tube 123. Reference Figure 5 The catheter tip 111 may be designed as a bullet-shaped catheter, which is wrapped around the tip of the first stent 121 to better implant or remove the internal tube unit 100 and avoid causing harm to the patient.

[0062] In some embodiments, reference Figure 2As shown in the structural diagram, the electromagnetic component 220 includes a first electromagnetic component 221 and a second electromagnetic component 222; when the catheter 110 is sleeved on the support rod unit 200, the first electromagnetic component 221 and the second electromagnetic component 222 correspond to the magnetic regions of the first bracket 121 and the second bracket 122 respectively; the control component 230 controls the magnetic force of the first electromagnetic component 221 and / or the second electromagnetic component 222 on the first bracket 121 and / or the second bracket 122 by controlling the current on and off of the first electromagnetic component 221 and / or the second electromagnetic component 222, thereby controlling the shape of the first bracket 121 and / or the second bracket 122. For example, referring to Figure 6 As shown in the structural diagram, the first electromagnetic component 221 and the second electromagnetic component 222 include but are not limited to coils (for example, air-core coils, iron-core coils or copper-core coils, etc.), which generate electromagnetic fields when energized. The control component can control the current to pass through the first electromagnetic component 221 and the second electromagnetic component 222 respectively. When current passes through the first electromagnetic component 221 and / or the second electromagnetic component 222, a magnetic field will be generated around the first electromagnetic component 221 and / or the second electromagnetic component 222, generating a magnetic attraction force on the corresponding first bracket 121 and / or the second bracket 122 having a magnetic area, so that the first bracket 121 and / or the second bracket 122 in an expanded state are sucked around the support rod body 210 and are in a retracted state (refer to Figure 2 When the current of the first electromagnetic member 221 and / or the second electromagnetic member 222 is disconnected, the magnetic field of the first electromagnetic member 221 and / or the second electromagnetic member 222 disappears, the first electromagnetic member 221 and / or the second electromagnetic member 222 lose the attraction to the first bracket 121 and / or the second bracket 122, and the first bracket 121 and / or the second bracket 122 with resilience will return to its natural expansion state (refer to Figure 3 bracket status shown).

[0063] In some embodiments, the first bracket 121 includes a head end and a tail end and a plurality of first ridges connecting the head end and the tail end, wherein the plurality of first ridges extend from the tail end to the head end and converge at the head end; wherein a gap is provided between two adjacent first ridges to allow liquid to pass through the gap and enter the catheter 110; when the first bracket is in an expanded state, the plurality of first ridges bend outwardly away from the central axis of the catheter 110 to form a cage shape; when the first bracket is in the collapsed state, the plurality of first ridges extend substantially along the support rod body to form a column shape. For example, referring to Figure 5As shown in the structural diagram, the head end of the first bracket 121 is connected to the catheter head end 111, and the tail end of the first bracket 121 is connected to one end of the support tube 123. The head end and the tail end of the first bracket 121 can be designed as a circular ring. In some embodiments, there are 4 to 6 first ridges. The multiple first ridges in the first bracket 121 are made of bonded magnetic material. The bonded magnetic material can be a mixture of magnetic powder or magnetic granular material and silicone, plastic or rubber material, so that the multiple first ridges have good magnetism and elasticity. Of course, the magnetic area in the first bracket 121 can also be only the middle part of the multiple first ridges. For example, magnetic material is only provided in the middle part of the multiple first ridges, or only the middle part of the multiple first ridges is made of bonded magnetic material, so that the first electromagnetic member 221 can attract the first ridges to be straight when generating magnetic force on the magnetic area in the first bracket 121. Reference Figure 5 , the initial state of the first bracket 121 is an expanded state. Figure 1 , 2 As shown in the structural diagram, when the first electromagnetic member 221 is energized, it generates a centripetal magnetic attraction force on the plurality of first ridges, and the outwardly bent portions of the plurality of first ridges are attracted by the first electromagnetic member 221 to be straight, and the plurality of first ridges are columnar around the first electromagnetic member 221, which facilitates the implantation or removal of the internal tube unit 100. After the magnetic attraction force is removed, the plurality of first ridges will return to their original state.

[0064] In some embodiments, when the first bracket 121 is collapsed, the proximal end of the first bracket 121 remains stationary, and the distal end of the first bracket 121 moves toward the distal end of the urinary catheter 110. This ensures that after the urinary catheter 110 is placed in the patient's bladder and urethra and the first bracket 121 expands, the position of the urinary catheter 110 does not move.

[0065] In some embodiments, at least the part of the first bracket 121 that can expand and contract is entirely set as a magnetic area, that is, the first ridge portion of the first bracket 121 is made of a bonded magnetic material, and the magnetic force generated by the first electromagnetic member 221 near the distal end of the catheter 110 is smaller than the magnetic force generated by the first electromagnetic member 221 near the proximal end of the catheter 110. Figure 2 As shown, after the first electromagnetic member 221 is powered on to generate a magnetic field, the magnetic field strength at the left end of the first electromagnetic member 221 is smaller than the magnetic field strength at the right end, so that the proximal end (i.e. Figure 2 The right end of the first bracket 121 is firstly adsorbed by the first electromagnetic member 221, so that when the first bracket 121 is folded, the proximal end of the first bracket 121 remains unchanged, and the distal end of the first bracket 121 (i.e. Figure 2 The distal end (left end) of the urinary catheter 110 is Figure 2For example, Figure 6 As shown, the first electromagnetic member 221 is a spiral coil, which generates a magnetic field after being energized, and the winding density of the coil on the right side of the first electromagnetic member 221 is greater than the winding density of the coil on the left side. Specifically, the winding density of the coil can be gradually reduced from right to left, or it can be non-gradual.

[0066] In some embodiments, at least the part of the first bracket 121 that can expand and contract is entirely configured as a magnetic region, that is, the first ridge portion of the first bracket 121 is made of a bonded magnetic material. The first electromagnetic member 221 includes at least two parts that generate magnetic force respectively. The parts of the first electromagnetic member 221 are arranged in a manner close to the proximal end ( Figure 6 right end shown) to the distal end ( Figure 6 The magnetic force is gradually generated in the order of Figure 6 From the middle direction, the parts of the first electromagnetic member 221 generate magnetic force in sequence from right to left. In this way, the first bracket 121 can be gradually adsorbed from the proximal end to the distal end, so that when the first bracket 121 is folded, the proximal end (i.e. Figure 2 The position of the first bracket 121 (i.e. the right end) remains unchanged. Figure 2 The distal end (left end) of the urinary catheter 110 is Figure 2 For example, the first electromagnetic member 221 includes multiple solenoids, each of which can be individually controlled to be energized. When the first bracket 121 is retracted, the first electromagnetic member 221 is first energized to the proximal end ( Figure 6 The solenoid coil at the right end (shown in FIG. 1 ) is energized, and the proximal end (i.e., Figure 2 After the right end (shown in the figure) is adsorbed, the next adjacent spiral coil is energized, until all the spiral coils are energized, and the first bracket 121 is adsorbed and retracted in sequence from the proximal end to the distal end. The multi-segment spiral coil can be 2, 3, 4, etc.

[0067] In some embodiments, the second bracket 122 includes a mounting end and a plurality of second ridges mounted at one end of the mounting end, the other ends of the plurality of second ridges are suspended and facing away from the first bracket, when the second bracket is in an expanded state, the plurality of second ridges are bent outward away from the central axis of the catheter, and when the second bracket is in a collapsed state, the plurality of second ridges extend substantially along the support rod body. Figure 5As shown in the structural diagram, the mounting end of the second bracket 122 is connected to the other end of the support tube 123. The mounting end can be designed to be annular so as to be mounted on the catheter 110. In some embodiments, there are 4 to 6 second ridges, and at least the plurality of second ridges in the second bracket 122 are made of bonded magnetic material. The bonded magnetic material can be a mixture of magnetic powder or magnetic granular material and silicone, plastic or rubber-like material, so that the plurality of second ridges have good magnetism and elasticity. Of course, the magnetic area in the second bracket 122 can also be only the middle part and / or the two end parts of the plurality of second ridges. For example, magnetic material is only provided in the middle part and / or the two end parts of the plurality of second ridges, or only the middle part and / or the two end parts of the plurality of second ridges are made of bonded magnetic material, so that when the second electromagnetic member 222 generates magnetic force on the magnetic area in the second bracket 122, the second ridges are attracted to form straight strips. Reference Figure 5 , the initial state of the second bracket 122 is an expanded state, and the plurality of second ridge-shaped portions are spread outward. Figure 1 , 2 As shown in the structural diagram, when the second electromagnetic member 222 is energized, it generates a centripetal magnetic attraction force on the plurality of second ridges, and the outwardly bent portions of the plurality of second ridges are attracted by the second electromagnetic member 222 to become straight strips, which facilitates the implantation or removal of the internal tube unit 100. After the magnetic attraction force is removed, the plurality of second ridges will return to their original state.

[0068] In some embodiments, the internal tube unit 100 further includes a urine control valve assembly 130, which is disposed at one end of the catheter 110 away from the second bracket 122, and includes a magnetic assembly 131, and urination is controlled by opening and closing the magnetic assembly 131. In some embodiments, the position of the urine control valve assembly 130 on the catheter 110 can be determined based on the elasticity of the catheter 110. If the elasticity and extensibility of the catheter 110 are relatively small, the original position of the urine control valve assembly 130 can be set at a position far from the second bracket 122, so that the urine control valve assembly can be located in the anterior urethra near the fossa navicularis to facilitate urination control. If the elasticity and extensibility of the catheter 110 are relatively good, the original position of the urine control valve assembly 130 can be set at a position close to the second bracket 122. When the bladder is empty and the urine volume is small, the catheter 110 is at or close to its original length, and the urine control valve assembly 130 is also at or close to its original position, located near the bulbar urethra. When the bladder is full and the bladder pressure is high, the end of the catheter 110 away from the second bracket 122 will extend forward under the action of pressure and gravity, and the urine control valve assembly will come to the vicinity of the urethral fossa navicularis as the catheter 110 extends to control urination. Furthermore, the patient can confirm the urination time based on the position of the urine control valve assembly 130, which is convenient for the patient to control urination. When urination is not required, the magnetic assembly 131 is in a closed state, and the force applied to the catheter 110 causes the catheter 110 to be in a closed state, thereby stopping urination. When urination is required, the magnetic assembly 131 is opened by the external action of the patient, and the force applied by the magnetic assembly 131 to the catheter 110 is weakened or disappears, and the catheter 110 resumes the conductive state, which is convenient for urine discharge. The urine control valve assembly 130 can be used by patients to independently control urination, thereby avoiding the hazards or complications that may be caused by continuous drainage through a urinary catheter (for example, a patient's bladder may not be filled for a long time, which may cause adhesion of the bladder wall or affect the bladder's ability to sense urine filling, etc.).

[0069] In some embodiments, the magnetic assembly 131 includes a first magnetic tube 1311 and a second magnetic tube 1312, the first magnetic tube 1311 and the second magnetic tube 1312 are both sleeved on the catheter 110, the first magnetic tube 1311 and the second magnetic tube 1312 are separated by a predetermined distance, one end of the first magnetic tube 1311 is an N pole and the other end is an S pole in the radial direction, one end of the second magnetic tube 1312 is an N pole and the other end is an S pole in the radial direction, and the catheter 110 is made of elastic material at least between the first magnetic tube 1311 and the second magnetic tube 1312; when the urine control valve assembly 130 is in a closed state, the catheter 110 is in a twisted closed state, there is no external magnetic field, and the first magnetic tube 1 The N pole of the first magnetic tube 1311 and the S pole of the second magnetic tube 1312 attract each other and move closer to each other, the S pole of the first magnetic tube 1311 and the N pole of the second magnetic tube 1312 attract each other and move closer to each other, the first magnetic tube 1311 and the second magnetic tube 1312 apply force to the catheter 110 so that the catheter remains twisted and closed; when the urine control valve assembly 130 is opened, the magnetic force between the first magnetic tube 1311 and the second magnetic tube 1312 is completely or partially offset by applying an external magnetic field, the force applied by the first magnetic tube 1311 and the second magnetic tube 1312 to the catheter 110 disappears or is less than the resilience of the catheter 110 itself, the catheter 110 recovers under the action of its own resilience and starts to urinate.

[0070] For example, refer to Figure 7 , when the urine control valve assembly 130 is in the open state, the catheter 110 is in the conducting state, the first magnetic tube 1311 and the second magnetic tube 1312 are separated by a predetermined distance, and the parts of the first magnetic tube 1311 and the second magnetic tube 1312 with the same polarity correspond to each other. In the absence of external action, the parts of the first magnetic tube 1311 and the second magnetic tube 1312 with different polarities attract each other. The first magnetic tube 1311 and the second magnetic tube 1312 attract each other and the force applied to the catheter 110 is greater than the elastic force of the catheter 110, so that the catheter 110 is twisted, thereby allowing the parts of the first magnetic tube 1311 and the second magnetic tube 1312 with different polarities to be attracted together. Reference Figure 8 , 9, at this time, the urinary catheter 110 is in a twisted and closed state. When urinating is required, the patient can use the handheld electromagnetic accessory (for example, a portable device such as an electromagnetic coil that can generate a magnetic field of a specific strength or characteristic) to generate a magnetic field to act on the urine control valve assembly 130, so that the magnetic force between the first magnetic tube 1311 and the second magnetic tube 1312 is completely or partially offset. At this time, the force applied by the first magnetic tube 1311 and the second magnetic tube 1312 to the urinary catheter 110 disappears or is less than the resilience of the urinary catheter itself, and the urinary catheter 110 is reopened under the action of its own resilience, and the patient can start urinating.

[0071] In some embodiments, reference Figure 2 The electromagnetic assembly 220 further includes a third electromagnetic component 223, which includes but is not limited to a coil (e.g., an air-core coil, an iron-core coil, or a copper-core coil, etc.), and generates an electromagnetic field when energized. When the catheter 110 is sleeved on the support rod body 210, the third electromagnetic component 223 corresponds to the urine control valve assembly 130, and the control assembly 230 controls the magnetic force of the third electromagnetic component 223 on the first magnetic tube 1311 and the second magnetic tube 1312 by controlling the current on and off of the third electromagnetic component 223, thereby controlling the opening / closing state of the urine control valve assembly 130.

[0072] When implanting or removing the internal tube unit 100, before the support rod body 210 is inserted into the urinary catheter 110, a magnetic field is first generated by a handheld electromagnetic accessory (for example, a portable device such as an electromagnetic coil that can generate a magnetic field of a specific strength or characteristic) to act on the urine control valve assembly 130, so that the magnetic force between the first magnetic tube 1311 and the second magnetic tube 1312 is completely or partially offset, and the urinary catheter 110 is restored to conduction under the action of its own resilience, and then the support rod body 210 is inserted into the urinary catheter 110, and the handheld electromagnetic accessory is withdrawn. At this time, the N pole of the first magnetic tube 1311 corresponds to the N pole of the second magnetic tube 1312. If there is no external magnetic field, the first magnetic tube 1311 and the second magnetic tube 1312 will rotate relative to each other under the action of their own magnetic attraction, thereby being fixed on the support rod body 210 and closing the urinary catheter 110. When implanting or removing the internal tube unit 100, it is best to keep the urinary catheter 110 in an open state, which will reduce the patient's discomfort and improve the patient's experience. At this time, the control component 230 controls the third electromagnetic component 223 to generate a magnetic field, which completely or partially offsets the magnetic force between the first magnetic tube 1311 and the second magnetic tube 1312, and the catheter 110 is restored to conduction under the action of its own resilience. After the internal tube unit 100 is implanted or removed, the support rod body 210 is removed from the catheter 110, and the control component 230 controls the third electromagnetic component 223 not to generate a magnetic field. Therefore, when the internal tube unit 100 is implanted or removed, the catheter 110 will always be in a conducting state.

[0073] In some embodiments, reference Fig.14 The control component 230 includes a first control switch 231, a second control switch 232, a third control switch 233 and a power source 234. The first electromagnetic member 221 is connected to the first control switch 231 and the power source 234 through a wire, the second electromagnetic member 222 is connected to the second control switch 232 and the power source 234 through a wire, and the third electromagnetic member 223 is connected to the third control switch 233 and the power source 234 through a wire. Here, Fig.14 The above is only an example of the arrangement of the control component 230, and is not intended to limit the arrangement of the switches, power supplies, etc. in the control component. Fig.15As shown in the control principle diagram, K1, K2, K3 correspond to the first control switch 231, the second control switch 232, and the third control switch 233, respectively; L1, L2, L3 correspond to the first electromagnetic component 221, the second electromagnetic component 222, and the third electromagnetic component 223, respectively; BT1 corresponds to the power supply 234; D1, D2, D3, D4, C1, C2, and L4 are circuit protection and filtering components. The user can control the current on / off of the first electromagnetic component 221, the second electromagnetic component 222, and the third electromagnetic component 223 through the first control switch 231, the second control switch 232, and the third control switch 233, respectively, and then control the state of the first bracket 121, the second bracket 122, and the urine control valve assembly 130. During the process of implanting the internal tube unit 100 into the patient's body, the first control switch 231, the second control switch 232, and the third control switch 233 can be controlled to be turned on, so that the first bracket 121 and the second bracket 122 are retracted or closed, and the urine control valve assembly 130 is opened. After the first bracket 121 of the internal tube unit 100 is moved into the bladder, the first control switch 231 is first controlled to be turned off, so that the first bracket 121 is restored to the expanded state, and then the second control switch 232 is controlled to be turned off, so that the second bracket 122 is restored to the expanded state, so that the internal tube unit 100 is fixed in a suitable position in the patient's body. During the process of removing the internal tube unit 100 from the patient's body, the first control switch 231, the second control switch 232, and the third control switch 233 can be controlled to be turned on, so that the first bracket 121 and the second bracket 122 are retracted or closed, and the urine control valve assembly 130 is opened, so as to remove the internal tube 100.

[0074] In some embodiments, the control assembly 230 further includes a housing 235 for accommodating the first control switch 231, the second control switch 232, the third control switch 233 and the power supply 234. Fig.14 The housing 235 includes an upper housing and a lower housing. The first control switch 231, the second control switch 232, the third control switch 233 and the power supply 234 can be stored in a cavity formed by the upper and lower housings being connected and closed. The upper housing includes three buttons, which correspond to the first control switch 231, the second control switch 232 and the third control switch 233 respectively. The user can control the on and off of different control switches by pressing different buttons. Here, those skilled in the art should understand that Fig.14 The identification of different buttons by numbers is only an example. Other button identification methods (for example, identification by color, shape, etc.) should also be included in the scope of protection of this application if they are applicable to this application and are included here by reference.

[0075] In some embodiments, reference Figure 10-13The magnetic assembly 131 includes: a first magnetic member 1313, a second magnetic member 1314, a first elastic member 1315 and a second elastic member 1316, the first elastic member 1315 and the second elastic member 1316 each include a concave surface and the two concave surfaces correspond to each other, the first magnetic member 1313 and the second magnetic member 1314 are respectively arranged on the concave surfaces of the first elastic member 1315 and the second elastic member 1316, the first magnetic member 1313 and the second magnetic member 1314 have opposite polarities, the urinary catheter 110 is located between the first magnetic member 1313 and the second magnetic member 1314, and the urinary catheter 110 is at least The first magnetic member 1313 and the second magnetic member 1314 are made of elastic material; when the urine control valve assembly 130 is in a closed state, there is no external force acting on them, and the first magnetic member 1313 and the second magnetic member 1314 are attracted to squeeze the catheter 110, so that the catheter 110 is closed; when the urine control valve assembly 130 is opened, the first elastic member 1315 and the second elastic member 1316 are deformed by applying an external force, driving the first magnetic member 1313 and the second magnetic member 1314 to separate, and the squeezed and closed part of the catheter 110 recovers under the action of its own resilience, so that the catheter 110 is turned on and urination is started. In some embodiments, the areas of the first magnetic member 1313, the second magnetic member 1314, the first elastic member 1315, and the second elastic member 1316 are equivalent. The first magnetic member 1313 and the second magnetic member 1314 have curved surfaces facing each other, so that they can be respectively embedded in the concave surfaces of the first elastic member 1315 and the second elastic member 1316. The first magnetic member 1313 and the second magnetic member 1314 have flat surfaces facing each other, so that when there is no external force, the two can fit tightly together (refer to Fig.10 ), so that the urinary catheter 110 is squeezed and closed. When urination is needed, the urine control valve assembly 130 is located near the urethral fossa navicularis, and it is very convenient for the patient to squeeze the urine control valve assembly 130. When the urine control valve assembly 130 is squeezed, the first elastic member 1315 and the second elastic member 1316 are deformed, driving the first magnetic member 1313 and the second magnetic member 1314 to also deform and separate (refer to Fig.12 The catheter 110 returns to the conducting state under the action of its own resilience, facilitating urine discharge. After urination, the patient stops squeezing the urine control valve assembly 130, and the first elastic member 1315 and the second elastic member 1316 drive the first magnetic member 1313 and the second magnetic member 1314 to return to the initial closed state under the action of the resilience.

[0076] In some embodiments, reference Fig.11 , 13In order to enhance the closing effect of the urinary catheter 110, the first magnetic member 1313 and the second magnetic member 1314 are provided with multiple ridges and multiple grooves at intervals on the opposite sides. The multiple ridges of the first magnetic member 1313 correspond to the multiple grooves of the second magnetic member 1314, and the multiple grooves of the first magnetic member 1313 correspond to the multiple ridges of the second magnetic member 1314. After the first magnetic member 1313 and the second magnetic member 1314 are attracted and contacted, the multiple ridges of the first magnetic member 1313 are matched with the multiple grooves of the second magnetic member 1314, and the multiple grooves of the first magnetic member 1313 are matched with the multiple ridges of the second magnetic member 1314. Therefore, when the urine control valve assembly 130 is closed, the first magnetic member 1313 and the second magnetic member 1314 are matched and clamped with each other to prevent the first magnetic member 1313 and the second magnetic member 1314 from accidentally opening due to pressure when there is a lot of urine.

[0077] In some embodiments, the urine control valve assembly 130 further includes an outer shell 132 wrapped around the magnetic assembly 131. Fig.12 , 13 Taking the magnetic component 131 shown as an example, the outer shell is wrapped around the outer periphery of the magnetic component 131. The thickness of the outer shell 132 can be designed to be about 1 mm. The outer shell 132 can be made of silicone with a soft texture and a highly smooth surface. A plurality of shallow grooves extending along the axial direction of the catheter 110 can also be provided on the surface of the outer shell 132 to reduce the friction resistance between the urine control valve component 130 and the urethral mucosa when moving forward and backward. Similarly, the outer shell 132 can also be wrapped around the first magnetic tube 1311 and the second magnetic tube 1312.

[0078] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the device claim can also be implemented by one unit or device through software or hardware. "First", "second" and other words are used to indicate names, and do not indicate any particular order.

Claims

1. An internal urinary catheter device, characterized in that: The internal urinary catheter device comprises: An internal tube unit, the internal tube unit comprising a urinary catheter and a bracket assembly, the urinary catheter having a proximal end and a distal end opposite to each other, the bracket assembly being mounted at the distal end of the urinary catheter, the bracket assembly comprising a first bracket and a second bracket, the first bracket being located at the distal end of the urinary catheter, the second bracket being a predetermined distance away from the distal end of the urinary catheter, the first bracket and the second bracket being both arranged to have an expanded state and a collapsed state and being constructed such that: when no external force is applied, the first bracket and / or the second bracket are in the expanded state, and when an external force is applied, the first bracket and / or the second bracket are in the collapsed state, and the first bracket and the second bracket both at least include a partial magnetic region; A support rod unit, the support rod unit comprising a support rod body, an electromagnetic component and a control component, the electromagnetic component is arranged on the support rod body, and the control component is connected to the electromagnetic component; When the internal tube unit is implanted or removed, the catheter is sleeved on the support rod unit, the electromagnetic component corresponds to the magnetic area, and the control component controls the shape of the first bracket and / or the second bracket by generating magnetic force or not generating magnetic force on the first bracket and / or the second bracket through the electromagnetic component.

2. The internal urinary catheter device according to claim 1, characterized in that: The support assembly further comprises a support tube, wherein the support tube is sleeved on the distal end of the urinary catheter, and the first support and the second support are respectively connected to two ends of the support tube.

3. The internal urinary catheter device according to claim 1, characterized in that: The urinary catheter further comprises a catheter head end, and the catheter head end is connected to an end of the first bracket away from the distal end of the urinary catheter.

4. The internal urinary catheter device according to claim 1, characterized in that: The electromagnetic assembly includes a first electromagnetic component and a second electromagnetic component; When the catheter is arranged on the support rod unit, the first electromagnetic component and the second electromagnetic component correspond to the magnetic areas of the first bracket and the second bracket respectively; the control component controls the magnetic force of the first electromagnetic component and / or the second electromagnetic component on the first bracket and / or the second bracket by controlling the on and off of the current of the first electromagnetic component and / or the second electromagnetic component, thereby controlling the shape of the first bracket and / or the second bracket.

5. The internal urinary catheter device according to claim 4, characterized in that: When the first bracket is folded, the proximal end of the first bracket remains stationary, and the distal end of the first bracket moves toward the distal end of the urinary catheter.

6. The internal urinary catheter device according to claim 5, characterized in that: At least the part of the first bracket that can expand and contract is entirely configured as a magnetic area, The magnetic force generated by the portion of the first electromagnetic component close to the distal end of the catheter is smaller than the magnetic force generated by the portion of the first electromagnetic component close to the proximal end of the catheter, or the first electromagnetic component includes at least two portions that generate magnetic forces respectively, and the portions of the first electromagnetic component gradually generate magnetic force in the order from close to the proximal end of the catheter to close to the distal end of the catheter.

7. The internal urinary catheter device according to claim 1, characterized in that: The built-in tube unit further comprises a urine control valve assembly, which is arranged at one end of the urinary catheter away from the second bracket, and comprises a magnetic assembly, and urination is controlled by opening and closing the magnetic assembly.

8. The internal urinary catheter device according to claim 7, characterized in that: The magnetic assembly comprises a first magnetic tube and a second magnetic tube, the first magnetic tube and the second magnetic tube are both sleeved on the urinary catheter, the first magnetic tube and the second magnetic tube are separated by a predetermined distance, one end of the first magnetic tube is an N pole and the other end is an S pole in the radial direction, one end of the second magnetic tube is an N pole and the other end is an S pole in the radial direction, and the urinary catheter is made of elastic material at least between the first magnetic tube and the second magnetic tube, When the urine control valve assembly is in a closed state, the catheter is in a twisted closed state, and without the effect of an external magnetic field, the N pole of the first magnetic tube and the S pole of the second magnetic tube attract each other and move closer together, and the S pole of the first magnetic tube and the N pole of the second magnetic tube attract each other and move closer together, and the first magnetic tube and the second magnetic tube exert a force on the catheter to keep the catheter twisted and closed. When the urine control valve assembly is opened, the magnetic force between the first magnetic tube and the second magnetic tube is completely or partially offset by applying an external magnetic field, and the force applied by the first magnetic tube and the second magnetic tube to the catheter disappears or is smaller than the resilience of the catheter itself. The catheter recovers under the action of its own resilience and urination is started.

9. The internal urinary catheter device according to claim 8, characterized in that: The electromagnetic component also includes a third electromagnetic component. When the catheter is sleeved on the support rod body, the third electromagnetic component corresponds to the urine control valve component. The control component controls the magnetic force of the third electromagnetic component on the first magnetic tube and the second magnetic tube by controlling the on / off current of the third electromagnetic component, thereby controlling the opening / closing state of the urine control valve component.

10. The internal urinary catheter device according to claim 9, characterized in that: The control component includes a first control switch, a second control switch, a third control switch and a power supply. The first electromagnetic component is connected to the first control switch and the power supply through a wire, the second electromagnetic component is connected to the second control switch and the power supply through a wire, and the third electromagnetic component is connected to the third control switch and the power supply through a wire.

11. The internal urinary catheter device according to claim 7, characterized in that: The magnetic assembly includes: a first magnetic member, a second magnetic member, a first elastic member and a second elastic member, the first elastic member and the second elastic member each include a concave surface and the two concave surfaces correspond to each other, the first magnetic member and the second magnetic member are respectively arranged on the concave surfaces of the first elastic member and the second elastic member, the first magnetic member and the second magnetic member have opposite polarities, the urinary catheter is located between the first magnetic member and the second magnetic member, and the urinary catheter is at least made of elastic material between the first magnetic member and the second magnetic member, When the urine control valve assembly is in a closed state, there is no external force acting on it, and the first magnetic member and the second magnetic member are attracted to each other, squeezing the catheter to close it; when the urine control valve assembly is opened, the first elastic member and the second elastic member are deformed by applying an external force, driving the first magnetic member to separate from the second magnetic member, and the squeezed and closed part of the catheter recovers under the action of its own resilience, so that the catheter is conducted and urination is started.

12. The internal urinary catheter device according to claim 11, characterized in that: A plurality of ridges and a plurality of grooves are arranged at intervals on opposite sides of the first magnetic member and the second magnetic member. The plurality of ridges of the first magnetic member correspond to the plurality of grooves of the second magnetic member, and the plurality of grooves of the first magnetic member correspond to the plurality of ridges of the second magnetic member. After the first magnetic member and the second magnetic member are in attraction contact, the plurality of ridges of the first magnetic member cooperate with the plurality of grooves of the second magnetic member, and the plurality of grooves of the first magnetic member cooperate with the plurality of ridges of the second magnetic member.

13. The internal urinary catheter device according to claim 1, characterized in that: The first bracket includes a head end and a tail end and a plurality of first ridges connecting the head end and the tail end, wherein the plurality of first ridges extend from the tail end to the head end and converge at the head end; wherein a gap is provided between two adjacent first ridges to allow liquid to pass through the gap and enter the catheter; when the first bracket is in an expanded state, the plurality of first ridges bend outwardly away from the central axis of the catheter to form a cage shape; when the first bracket is in the collapsed state, the plurality of first ridges extend generally along the support rod body to form a columnar shape.

14. The internal urinary catheter device according to claim 1, characterized in that: The second bracket includes a mounting end and a plurality of second ridge portions with one end mounted on the mounting end, the other ends of the plurality of second ridge portions are suspended and facing away from the first bracket, when the second bracket is in an expanded state, the plurality of second ridge portions are bent outwardly away from the central axis of the catheter, and when the second bracket is in a collapsed state, the plurality of second ridge portions extend generally along the support rod body.

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