Medical control device and use thereof

Abstract

The application discloses a medical control device and application thereof, which is used for controlling urethra and comprises a liquid bag, a connecting pipe, an expansion part and a support. The expansion part is arranged on the support, the support is used for being connected with a part to be controlled and making the expansion part contact with the part to be controlled. One end of the connecting pipe is communicated with the liquid bag, and the other end is communicated with the expansion part. Liquid outlet control parts and liquid return control parts are arranged on the liquid bag. The liquid outlet control parts and the liquid return control parts make liquid flow between the liquid bag and the connecting pipe. The medical control device is used as an artificial urethral sphincter. Urinary control and urinary excretion are realized through the liquid outlet control parts and the liquid return control parts respectively. Once operation can realize pressure increase or pressure release. The operation is simple, and urinary control and urinary excretion are more convenient. Meanwhile, the liquid bag can avoid being in an expanded state for a long time, and the service life of the liquid bag is prolonged.

Description

Technical Field

[0001] This invention relates to a medical control device and its application, belonging to the field of medical device technology. Background Technology

[0002] Currently, there are over 50 million prostate cancer patients worldwide. Even with the assistance of surgical robots, there is still about a 20% chance of damaging the parasympathetic nerves that control the urethra during radical prostatectomy, leading to sphincter relaxation, inability to completely close the urethra, and causing urinary incontinence, which causes great psychological distress to patients.

[0003] To address this complication, most products in this field currently employ a sleeve structure that surrounds the urethra (such as...). Figure 9 As shown in the image, the above-mentioned sleeve structure has a high product failure rate and exhibits the following problems during use:

[0004] (a) The sleeve 201 surrounds the urethra, causing poor blood flow in the urethra. The urethra cannot open quickly for urination, and in severe cases, it can cause urethral atrophy and narrowing.

[0005] (ii) The expansion of the sleeve 201 to control urination requires pressing the control pump 202 multiple times, which causes the one-way valve in the control pump 202 to wear and leak after frequent use, resulting in the sleeve 101 depressurizing and failing to control urination.

[0006] (iii) The pressure of the sleeve 201 on the urethra requires a large reservoir balloon 203, and it is often in an inflated state. Since the reservoir balloon is made of silicone, it is prone to aging and loosening in a long-term inflated state, which leads to the loss of pressure of the sleeve and failure of urinary control.

[0007] (iv) The reservoir balloon 203 is relatively large, and an incision needs to be made in the abdomen above the scrotum during implantation, which is quite painful for the patient. Summary of the Invention

[0008] This invention provides a medical control device that enables urinary control and urination through a liquid discharge control unit and a liquid return control unit, respectively. The device can pressurize or depressurize in a single operation, making it simple to operate and more convenient for urination control and urination. At the same time, it can prevent the liquid bladder from being in an inflated state for a long time, thus improving the service life of the liquid bladder.

[0009] This invention provides a medical control device for controlling the opening and closing of the urethra.

[0010] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0011] A medical control device includes a liquid sac, a connecting tube, an expansion section, and a support. The expansion section is disposed on the support, and the support is used to connect to a site to be controlled and to make the expansion section contact the site to be controlled. One end of the connecting tube is connected to the liquid sac, and the other end is connected to the expansion section.

[0012] The liquid bladder is provided with a liquid outlet control unit and a liquid return control unit, which allow liquid to flow between the liquid bladder and the connecting tube.

[0013] Preferably, the connecting pipe is connected to the liquid outlet control unit, the liquid outlet control unit and the liquid return control unit are connected to each other, and the liquid bladder is also provided with a pressure relief button to control the operation of the liquid return control unit.

[0014] Preferably, the surface of the expansion portion that contacts the area to be controlled is a non-closed surface in the circumferential direction.

[0015] Preferably, the volume of the cavity in the liquid bladder is larger than the volume of the inner cavity of the expansion portion.

[0016] In a preferred embodiment, the liquid discharge control unit includes a liquid discharge valve body communicating with the connecting pipe; a liquid discharge valve core is movably disposed inside the liquid discharge valve body, and a liquid discharge elastic part is sleeved on the liquid discharge valve core to control the opening and closing of the liquid discharge control unit.

[0017] Preferably, when the liquid outlet valve core moves from a first position to a second position along a first direction within the liquid outlet valve body, the liquid bladder and the connecting pipe are in communication; the first direction is parallel to the axial direction of the liquid outlet valve core and extends from the liquid bladder to the connecting pipe; the first position is the position where the liquid outlet valve core blocks the liquid bladder and the connecting pipe; the second position is the position where the liquid outlet valve core is when the liquid bladder and the connecting pipe are in communication.

[0018] Preferably, the liquid outlet valve core has a first cylindrical section and a first conical head, and both the first end and the second end of the liquid outlet valve body have openings, wherein the first end communicates with the cavity of the liquid bladder, and the second end communicates with the connecting pipe, the first cylindrical section passes through the opening at the second end of the liquid outlet valve body, and the shape of the first conical head matches the opening at the first end of the liquid outlet valve body.

[0019] In a preferred embodiment, the return liquid control unit includes a return liquid valve body communicating with the outlet valve body; a return liquid valve core is movably disposed inside the return liquid valve body, and a return liquid elastic part is sleeved on the return liquid valve core; the return liquid valve core cooperates with the pressure relief button to control the opening and closing of the return liquid control unit.

[0020] Preferably, when the return valve core moves from the third position to the fourth position in the opposite direction of the first direction within the return valve body, the liquid bladder and the connecting pipe are in communication; the opposite direction of the first direction is parallel to the axial direction of the return valve core and points from the connecting pipe to the liquid bladder; the third position is the position where the return valve core blocks the liquid bladder and the connecting pipe; the fourth position is the position where the return valve core is when the liquid bladder and the connecting pipe are in communication.

[0021] Preferably, the return valve core has a second cylindrical section and a second conical head. The first end and the second end of the return valve body both have openings, wherein the first end communicates with the cavity of the liquid bladder, and the second end faces the pressure relief button. The second cylindrical section passes through the opening at the second end of the return valve body. The second conical head is located in the hollow inner cavity of the return valve body and its shape matches the opening at the second end of the return valve body.

[0022] Preferably, the preset pressure of the return fluid elastic part is the pressure of 40-80 cm water column.

[0023] In a preferred embodiment, the bracket includes a bracket body and at least one crossbeam connected to the bracket body, each crossbeam forming a sleeve portion with the bracket body for connection to the control point.

[0024] In a preferred embodiment, the number of crossbeams is 2 to 7.

[0025] In a preferred embodiment, the support body is provided with a support portion, and the expansion portion is supported on the support portion.

[0026] Preferably, the expansion portion is a balloon.

[0027] The aforementioned medical control device is used to control the opening and closing of the urethra.

[0028] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0029] (i) By using a support and dilator, the urethral atrophy caused by circumferential encirclement is avoided, and the opening and closing of the urethra is achieved with less contact, while the volume of the dilator can also be reduced.

[0030] (ii) By cleverly utilizing the liquid balloon to both allow the patient to press to control urination and store the liquid, a large liquid balloon is not required, thus reducing the product volume, the incision during implantation is reduced, and the cost is lowered.

[0031] (iii) The liquid in the liquid bladder can be precisely controlled through the independently controllable liquid discharge control unit and liquid return control unit; its control structure is reliable and conducive to long-term effective control.

[0032] (iv) Only one connecting pipe is needed to connect to the liquid outlet control unit, eliminating the need for two connecting pipes to connect the liquid outlet control unit and the liquid return control unit respectively, which simplifies the overall structure and reduces volume and cost. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the medical control device provided in an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of the liquid bladder in the medical control device provided in an embodiment of the present invention;

[0035] Figure 3 This diagram illustrates the working principle of the medical control device of the present invention in a pressurized state.

[0036] Figure 4 This diagram illustrates the working principle of the medical control device in the depressurization state according to an embodiment of the present invention.

[0037] Figure 5 A schematic diagram of the expansion section in the medical control device according to an embodiment of the present invention is shown;

[0038] Figure 6 A schematic diagram of the structure of the stent in the medical control device according to an embodiment of the present invention is shown;

[0039] Figure 7 This diagram shows a cross-sectional view of the connection between the stent and the expansion portion in a medical control device according to an embodiment of the present invention.

[0040] Figure 8 A schematic diagram illustrating the application of the medical control device according to an embodiment of the present invention is shown;

[0041] Figure 9 A prior art urine control device with a sleeve structure is shown.

[0042] In the accompanying drawings, the reference numerals indicate:

[0043] 1. Liquid capsule; 101. Receptacle; 102. Through groove;

[0044] 2. Dispensing control unit; 21. Dispensing valve body; 22. Dispensing valve core; 23. Dispensing elastic part; 221. Dispensing channel; 220. First cylindrical section; 222. First conical head;

[0045] 3. Return liquid control unit; 31. Return liquid valve body; 32. Return liquid valve core; 33. Return liquid elastic part; 34. Pressure relief button; 321. Return liquid channel; 320. Second cylindrical section; 322. Second conical head;

[0046] 4. Connecting tube; 5. Dilation section; 51. Balloon body; 52. Fittings; 6. Urethra;

[0047] 7. Frame; 71. Frame body; 72. Crossbeam; 73. Sleeve part; 74. Through part; 711. Support part. Detailed Implementation

[0048] The technical content of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0049] Please refer to Figures 1 to 2 As shown, this embodiment of the invention provides a medical control device, which includes a liquid sac 1, a connecting tube 4, an expansion portion 5, and a support 7. The expansion portion 5 is supported on the support 7, and the support 7 is used to bring the expansion portion 5 into contact with the area to be controlled. This invention can be used for artificial urethral sphincter muscles, in which case the area to be controlled refers to a section of the urethra used for mounting the support. However, this invention is not limited to this and can also be used for applications such as artificial anal sphincter muscles, in which case the area to be controlled refers to a section of the anal canal used for mounting the support.

[0050] The liquid sac 1 is provided with an outflow control section 2 and an inflow control section 3 that are interconnected, as well as a pressure relief button 34. One end of the connecting tube 4 is connected to the outflow control section 2, and the other end is connected to the dilation section 5. The pressure relief button 34 controls the inflow control section 3, allowing the connecting tube 4 to communicate with the inflow control section 3. In this embodiment, the stent 7 can be fitted onto the urethra 6, thereby positioning the dilation section 5 on one side of the urethra 6 (i.e., Figure 1 Located below the middle urethra 6, the dilator 5 is used to squeeze or release the urethra 6 from one side. When the dilator 5 is fully expanded, it compresses the urethra 6 with the assistance of the support 7, thereby achieving urinary control. When the dilator 5 contracts to release fluid, the urethra 6 is released, allowing the user to urinate. Thus, by using the support 7 and the dilator 5, circumferential encirclement that could cause urethral atrophy is avoided, and the opening and closing of the urethra is achieved with less contact, while also reducing the volume of the dilator. The medical control device of this embodiment can be used as an artificial urethral sphincter to solve the problem of urinary incontinence.

[0051] In the above embodiments, preferably, the liquid sac 1 is made of an elastic material and is installed inside the scrotum. For example... Figure 2As shown, the liquid bladder 1 has a cavity 101 for containing liquid. Pressing the liquid bladder 1 can squeeze the liquid within the cavity 101. In this embodiment, the liquid in the liquid bladder 1 is preferably hydraulic oil. The volume of the cavity of the liquid bladder is slightly larger than the inner cavity of the expansion section 5, preferably 1.5–4 cc and 0.5–2 cc, respectively, and more preferably 2 cc and 1 cc, respectively. Since manually squeezing the liquid bladder generally cannot completely expel the liquid, this design ensures that the expansion section 5 can be fully expanded. Simultaneously, the hydraulic oil can be adaptively replaced with other liquids as needed.

[0052] Reference Figure 2 As shown, the liquid dispensing control unit 2 includes a liquid dispensing valve body 21 disposed between the accommodating cavity 101 and the connecting pipe 4. Preferably, the liquid dispensing valve body 21 has a hollow inner cavity with openings at both ends, wherein the first end communicates with the accommodating cavity 101 and the second end communicates with the connecting pipe 4. Figure 2 From this perspective, the first end is the lower end of the liquid outlet valve body 21, and the second end is the upper end of the liquid outlet valve body 21. The liquid outlet control unit 2 also includes a liquid outlet valve core 22 movably disposed in the hollow inner cavity, as shown in the figure. Figure 2 As shown in the diagram, the dispensing valve core 22 can move up and down inside the dispensing valve body 21. The dispensing valve core 22 has a first cylindrical section 220 and a first conical head 222. The first cylindrical section 220 passes through an opening at the second end of the dispensing valve body 21, and the shape of the first conical head 222 matches the opening at the first end of the dispensing valve body 21. Preferably, a dispensing channel 221 is provided between the first conical head 222 and the inner wall of the hollow cavity of the dispensing valve body 21. The liquid outlet channel 221 can be a narrow slit between the first conical head 222 and the aforementioned inner wall, but it is not limited to this structural form. In principle, its structural form can satisfy the function of the liquid outlet control unit 2. That is, when the first conical head 222 moves downward, the opening at the first end of the liquid outlet valve body 21 is blocked, so no liquid flows into the liquid outlet channel 221. When the first conical head 222 moves upward, away from the opening at the first end of the liquid outlet valve body 21, it becomes open, and liquid can pass through the liquid outlet channel 221. The liquid outlet control unit 2 also includes a liquid outlet elastic part 23 sleeved on the outer periphery of the first cylindrical section 220, with one end of the liquid outlet elastic part 23 abutting against the first conical head 222 and the other end abutting against the second end of the liquid outlet valve body 21. Preferably, the liquid outlet elastic part 23 is a compression spring.

[0053] Continue to refer to Figure 2 The return fluid control unit 3 includes a return fluid valve body 31 disposed between the accommodating cavity 101 and the pressure relief button 34. Preferably, the return fluid valve body 31 has a hollow inner cavity with openings at both ends, one end communicating with the accommodating cavity 101 and the other end facing the pressure relief button 34. Figure 2From this perspective, one end of the aforementioned return valve body is the lower end of the return valve body 31, and the other end is the upper end of the return valve body 31. The return control unit 3 also includes a return valve core 32 movably disposed inside the return valve body 31, as shown in the reference section. Figure 2 As shown, the return valve core 32 can move up and down inside the return valve body 31. The return valve core 32 has a second cylindrical section 320 and a second conical head 322. The second cylindrical section 320 passes through the opening at the other end of the return valve body 31; the second conical head 322 is located in the hollow inner cavity of the return valve body 31, and its shape matches the opening at the other end of the return valve body 31. Preferably, a return channel 321 is provided between the second conical head 322 and the inner wall of the hollow inner cavity of the return valve body 31. The return channel 321 can be a narrow slit between the second conical head 322 and the aforementioned inner wall, but it is not limited to this structural form. In principle, its structural form can satisfy the function of the return control unit 3, that is, when the second conical head 322 and the opening at the other end are in a blocked state, no liquid passes through the return channel 321, and when the second conical head 322 is away from the opening at the other end and is in a conducting state, liquid can pass through the return channel 321. The return fluid control unit 3 further includes a return fluid elastic part 33 disposed between the second conical head 322 and the end of the return fluid valve body 31 that communicates with the accommodating cavity 101. Preferably, the return fluid elastic part 33 is a compression spring. Preferably, the preset pressure of the return fluid elastic part 33 is 50-70 cm water column pressure, and more preferably, the preset pressure is 60 cm water column pressure.

[0054] Combination Figure 2-4 The liquid discharge control unit 2 and the liquid return control unit 3 ensure that the input and output of the liquid are unidirectional. That is, in this embodiment, the liquid discharge control unit 2 is used to control the flow of liquid from the liquid bladder 1 to the connecting pipe 4; the liquid return control unit 3 is used to control the flow of liquid from the connecting pipe 4 to the liquid bladder 1.

[0055] Figure 2 This is the initial state of the liquid discharge control unit and the liquid return control unit 3, that is, the liquid discharge valve core 22 and the liquid return valve core 32 respectively block the first end of the liquid discharge valve body 21 and the other end of the liquid return valve body 31.

[0056] like Figure 3 As shown, when urinary incontinence is required, squeezing the liquid bladder 1 causes the liquid to push the dispensing valve core 22, moving it from a first position to a second position within the dispensing valve body 21 along a first direction. The receiving cavity 101 and the connecting tube 4 are interconnected, and the liquid enters the connecting tube 4 through the dispensing channel 221 from the receiving cavity 101. The aforementioned first direction is parallel to the axial direction of the dispensing valve core 22 and points from the receiving cavity 101 towards the connecting tube 4. Figure 3From this perspective, the first direction is vertically upward. The aforementioned first position is the position where the discharge valve core 22 blocks the accommodating cavity 101 and the connecting pipe 4. The aforementioned second position refers to the position of the discharge valve core 22 when the liquid pushes it, causing the accommodating cavity 101 and the connecting pipe 4 to be in a conductive state. Therefore, it should be understood that although... Figure 3 The discharge valve core 22 is shown in a specific position, but the second position described herein is not limited to this. Figure 3 As shown in the image.

[0057] After squeezing the liquid bladder 1 to fill the expansion section 5 with liquid, releasing the liquid bladder 1 causes the outlet valve core 22 to move to the first position in the opposite direction of the first direction under the action of the outlet elastic section 23 (it should be understood that during the process of the outlet valve core 22 falling back to the first position, a small amount of liquid may flow into the receiving cavity 101 through the outlet channel 221), sealing the receiving cavity 101 and the connecting pipe 4, preventing liquid from flowing back through the outlet control section 2. The aforementioned opposite direction of the first direction is parallel to the axial direction of the outlet valve core 22 and points from the connecting pipe 4 to the receiving cavity 101. Figure 3 From this perspective, the opposite direction of the first direction is the vertical downward direction.

[0058] Reference Figure 4 As shown, after the expansion section 5 expands by squeezing the liquid bladder 1, the liquid outlet control section 2 closes. When the pressure inside the connecting pipe 4 is greater than the preset pressure of the return elastic section 33, the return valve core 32 moves from the third position to the fourth position in the opposite direction of the first direction under the action of the pressure difference. The accommodating cavity 101 and the connecting pipe 4 are interconnected, and the liquid flows back to the accommodating cavity 101 through the return channel 321. The aforementioned third position is the position where the return valve core 32 blocks the accommodating cavity 101 and the connecting pipe 4. The aforementioned fourth position refers to the position of the return valve core 32 when the liquid pushes the return valve core 32, making the accommodating cavity 101 and the connecting pipe 4 in a conductive state. Therefore, it should be understood that although... Figure 4 The return valve core 32 is shown in a specific position, but the fourth position described herein is not limited to this. Figure 4 As shown in the image.

[0059] As the pressure inside the connecting tube 4 and the pressure in the return fluid elastic part 33 gradually cancel each other out, the return fluid valve core 32 moves to the third position in the first direction within the return fluid valve body 31, sealing the receiving cavity 101 and the connecting tube 4, and preventing liquid from flowing back through the return fluid control part 3. Due to the specific preset pressure design of the return fluid elastic part 33, the pressure in the expansion part 5 connected to the connecting tube 4 is controllable. Appropriate expansion ensures urinary control while greatly improving the safety of the device during use.

[0060] Continue to refer to Figure 4When urination is needed, pressing the pressure relief button 34 causes the return valve core 32 to move in the opposite direction to the fourth position. Under pressure, the liquid in the expansion section 5 flows from the connecting pipe 4 through the outlet control section 2 and the return control section 3 into the receiving cavity 101, thereby relieving the pressure of the expansion section 5 on the urethra 6 and achieving the purpose of urination. Releasing the pressure relief button 34 pushes the return valve core 32 to the third position under the action of the return elastic section 33, and the outlet control section 2 and the return control section 3 return to their original positions. Figure 2 The initial state is shown.

[0061] Therefore, this medical control device cleverly utilizes a liquid bladder, which serves two purposes: firstly, it allows the patient to press the bladder to achieve urinary control or urination; secondly, it stores the fluid, thus reducing the product's size, consequently minimizing the implantation incision, and lowering costs. Furthermore, during urinary control, pressure is temporarily applied to the dilation area by manual pressing of the liquid bladder. After the fluid is expelled, the bladder is in a contracted state, eliminating the need for continuous pressure application and preventing decompression due to aging and loosening, thus ensuring long-term reliability and stability.

[0062] In the above embodiment, preferably, a through groove 102 is provided between the liquid outlet valve body 21 and the liquid return valve body 31, allowing liquid to enter the liquid return control unit 3 from the liquid outlet control unit 2. This through groove 102 enables communication between the liquid outlet control unit 2 and the liquid return control unit 3, thus requiring only one connecting pipe 4 to connect to the liquid outlet control unit 2, eliminating the need for two separate connecting pipes to the liquid outlet control unit and the liquid return control unit, simplifying the overall structure. Furthermore, the use of two independent movable valve cores results in a simple and reliable design, facilitating long-term effective control and avoiding control failure caused by frequent wear and tear of a single valve.

[0063] In the above embodiments, preferably, the outlet valve body 21 and the return valve body 31 are integrally formed, the through groove 102 is arranged along the second direction, and the two ends of the through groove 102 are respectively connected to the second end of the outlet valve body 21 and the fourth end of the return valve body 31. Figure 2-4 From this perspective, the second direction is the horizontal direction.

[0064] The above design ensures the sealing performance of the valve body and the reliability of liquid flow. Furthermore, it is easy to understand that the larger the size of the through-channel 102, the easier the liquid flow. Simultaneously, different shapes of the through-channel 102 will result in differences in the time and speed of liquid flow through it (for example, with the same length, the flow time of liquid in a spiral through-channel 102 is greater than that in a straight through-channel 102). Therefore, the shape and size of the through-channel 102 can be adaptively designed as needed. However, it should be understood that in other embodiments, the outlet valve body 21 and the return valve body 31 can also be designed as two independent valve body structures, connected by a pipe. In this case, the pipe is equivalent to the through-channel 102. Designing a split structure improves assembly flexibility, and the specific design can be adapted according to actual needs.

[0065] In the above embodiments, preferably, the connecting tube 4 is made of an elastic material. In the medical control device described in the embodiments of the present invention, the connecting tube 4 may be made of rubber material. The volume of the connecting tube 4 is preferably 0.2-0.5 cc, more preferably 0.3 cc. Please refer to [reference needed]. Figure 8 The connecting tube 4 is installed from the scrotum to the back of the perineum to facilitate the delivery of liquid. A certain amount of liquid is pre-stored inside the connecting tube 4 to ensure that the expansion part 5 has a certain pressure.

[0066] Reference Figure 5 As shown, the expansion section 5 is made of an elastic material. In this embodiment, the expansion section 5 is preferably made of rubber material, and its volume is 0.5-1 cc, more preferably 1 cc. The expansion section 5 is detachably connected to the connecting tube 4. Preferably, the expansion section 5 includes a balloon body 51 and a tube 52 connected to the balloon body 51. The tube 52 has a through hole along the axial direction to allow liquid to enter the interior of the balloon body 51. Preferably, after the medical control device is implanted into the patient's body, the expansion section 5 is located on one side of the urethra 6 behind the perineal sphincter. By inflating the expansion section 5 and compressing the urethra 6, the squeezing and relaxation of the urethra can be controlled.

[0067] Reference Figure 1 , Figure 6 and Figure 7 As shown, in the above embodiment, preferably, the stent 7 includes a stent body 71 and at least one crossbeam 72 connected to the stent body 71. A fitting portion 73 is formed between the crossbeam 72 and the stent body 71. The fitting portion 73 is fitted onto a portion of the urethra 6 to cooperate with the dilator 5 to compress or loosen the urethra 6. Specifically, in this embodiment, there are two crossbeams 72, which are positioned above the stent body 71. Figure 6 (From the perspective of the center), thus forming an annular sleeve portion 73 with the support body 71. Combined Figure 1 As shown, the urethra is surrounded in three places by two crossbeams 72 and the expansion part 5, rather than in a circular manner. The expansion part 5 is located between the two crossbeams 72. Under the premise of ensuring that the expansion part 5 is firmly placed in the urethra, the three-point bend increases the deformation of the urethra in one direction, avoids urethral atrophy, and can also achieve urinary control with a smaller expansion part.

[0068] Additionally, the two crossbeams 72 can be opened or closed to facilitate the fitting of the urethra 6, and also to facilitate the separation of the urethra 6 from the stent 7 when the medical control device needs to be removed. In this embodiment, the stent body 71 is preferably made of TPU material (Thermoplastic polyurethanes), which gives the stent body 71 a certain degree of elasticity to reduce damage to the urethra 6.

[0069] In the above embodiment, preferably, the support body 71 is provided with a support portion 711, the expansion portion 5 is supported on the support portion 711, and the support portion 711 has a through portion 74 for communicating between the expansion portion 5 and the connecting pipe 4 (e.g., Figure 7 (As shown). Specifically, in this embodiment, the shape of the support portion 711 matches that of the expansion portion 5. See preferred embodiment. Figure 7 The expansion part 5 is a balloon, and the support part 711 is spherical, so that the expansion part 5 can fit perfectly with the support part 711 to provide stable support for the expansion part 5.

[0070] The implantation method of the above-mentioned medical control device is described below:

[0071] A1: First, cut open the perineum to expose the urethra 6, and then make a blunt incision in the direction of the scrotum.

[0072] A2: Place the dilator 5 and the support 7 onto the exposed urethra 6 and fix them in place, and point the first connecting tube toward the scrotum.

[0073] A3: Insert the liquid-filled sac 1 through the scrotal incision, then point the second connecting tube towards the perineum. Connect the first and second connecting tubes together using a connector to form the connecting tube 4. In the initial implantation stage, the dilation section 5 is empty and will not apply pressure to the urethra 6. It can be used after the perineum has completely healed 3-6 months after implantation.

[0074] Therefore, the medical control device of the present invention has the use as an artificial urethral sphincter, which can be used to open or close the urethra.

[0075] This invention utilizes a stent and an expansion unit to achieve urethral opening and closing with minimal contact, while also reducing the volume of the expansion unit. It cleverly utilizes a liquid-filled balloon for both manipulation and fluid storage, thus reducing product size, consequently minimizing the implantation incision and lowering costs. Precise control of the fluid in the balloon is achieved through independently controllable outflow and return fluid control units, ensuring reliable and long-term effective control. Only a single connecting tube is needed to connect to the outflow control unit, further simplifying the overall structure and reducing size and cost.

[0076] Furthermore, it should be noted that, unless otherwise specified or indicated, the terms "first," "second," and "third" in the specification are used only to distinguish the various components, elements, and steps in the specification, and are not used to indicate the logical or sequential relationships between the various components, elements, and steps.

[0077] It is understood that although the present invention has been disclosed above with reference to preferred embodiments, these embodiments are not intended to limit the present invention. For any person skilled in the art, many possible variations and modifications can be made to the technical solutions of the present invention based on the disclosed technical content, or equivalent embodiments can be modified accordingly, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A medical control device, characterized in that: It includes a liquid bladder, a connecting tube, an expansion section, and a support. The expansion section is disposed on the support, and the support is used to connect to the area to be controlled and to make the expansion section contact the area to be controlled. One end of the connecting tube is connected to the liquid bladder, and the other end is connected to the expansion section. The liquid bladder is provided with a liquid outlet control section and a liquid return control section, which allow liquid to flow between the liquid bladder and the connecting tube. The connecting pipe is connected to the liquid outlet control unit, and the liquid outlet control unit and the liquid return control unit are connected to each other; The liquid discharge control unit includes a liquid discharge valve body communicating with the connecting pipe; a liquid discharge valve core is movably disposed inside the liquid discharge valve body, and a liquid discharge elastic part is sleeved on the liquid discharge valve core to control the opening and closing of the liquid discharge control unit; the liquid return control unit includes a liquid return valve body communicating with the liquid discharge valve body; a liquid return valve core is movably disposed inside the liquid return valve body, and a liquid return elastic part is sleeved on the liquid return valve core, and the liquid return valve core cooperates with a pressure relief button to control the opening and closing of the liquid return control unit.

2. The medical control device according to claim 1, characterized in that, Furthermore, the liquid bladder is equipped with a pressure relief button to control the operation of the return liquid control unit.

3. The medical control device according to claim 1, characterized in that, The surface of the expansion portion that contacts the area to be controlled is a non-closed surface in the circumferential direction.

4. The medical control device according to claim 1, characterized in that, The volume of the cavity in the liquid capsule is greater than the volume of the inner cavity of the expansion section.

5. The medical control device according to claim 1, characterized in that, When the liquid outlet valve core moves from a first position to a second position along a first direction within the liquid outlet valve body, the liquid bladder and the connecting pipe are in communication with each other; the first direction is parallel to the axial direction of the liquid outlet valve core and extends from the liquid bladder to the connecting pipe; the first position is the position where the liquid outlet valve core is when it blocks the liquid bladder and the connecting pipe; the second position is the position where the liquid outlet valve core is when it is in communication with the connecting pipe.

6. The medical control device according to claim 5, characterized in that, The liquid outlet valve core has a first cylindrical section and a first conical head. The first end and the second end of the liquid outlet valve body both have openings, wherein the first end is connected to the cavity of the liquid bladder and the second end is connected to the connecting pipe. The first cylindrical section passes through the opening at the second end of the liquid outlet valve body, and the shape of the first conical head matches the opening at the first end of the liquid outlet valve body.

7. The medical control device according to claim 1, characterized in that, When the return valve core moves from the third position to the fourth position in the opposite direction of the first direction within the return valve body, the liquid bladder and the connecting pipe are in communication with each other; the opposite direction of the first direction is parallel to the axial direction of the return valve core and points from the connecting pipe to the liquid bladder; the third position is the position where the return valve core is when it blocks the liquid bladder and the connecting pipe; the fourth position is the position where the return valve core is when the liquid bladder and the connecting pipe are in communication.

8. The medical control device according to claim 7, characterized in that, The return valve core has a second cylindrical section and a second conical head. The first end and the second end of the return valve body both have openings, wherein the first end is connected to the cavity of the liquid bladder, and the second end faces the pressure relief button. The second cylindrical section passes through the opening at the second end of the return valve body. The second conical head is located in the hollow inner cavity of the return valve body and its shape matches the opening at the second end of the return valve body.

9. The medical control device according to claim 1, characterized in that, The preset pressure of the return fluid elastic part is 40-80 cm water column pressure.

10. The medical control device according to claim 1, characterized in that, The support includes a support body and at least one crossbeam connected to the support body, each crossbeam forming a sleeve portion with the support body for connection to the control point.

11. The medical control device according to claim 10, characterized in that, The number of crossbeams is 2 to 7.

12. The medical control device according to claim 10, characterized in that, The bracket body is provided with a support part, and the expansion part is supported on the support part.

13. The medical control device according to claim 10, characterized in that, The expansion portion is a balloon.

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