Replaceable implantable medical device

Abstract

The invention relates to the technical field of medical instruments, and particularly discloses a replaceable implantable medical device which comprises a main body, a control unit is arranged on the lower side of the main body, protective frame parts are fixedly connected to the two ends of the main body, two deformation mechanisms are arranged between the two protective frame parts, and a bearing frame and a storage battery pack are fixedly connected into the main body. A positioning shaft is rotationally connected into the bearing frame, two winding rollers are fixedly connected to the circumferential surface of the positioning shaft, a deformation mechanism is arranged between the main body and each of the two wrapping sleeves, an electrifying mechanism is arranged between each of the two deformation mechanisms and the storage battery pack, and an adjusting mechanism for adjusting the deformation quantity of the deformation mechanisms is arranged in the main body. The two deformation alloy belts can deform simultaneously and asynchronously, physiological state changes of the bladder and the urethra can be sensed and responded more accurately, and therefore the urine control precision is improved, fine adjustment can be conducted according to actual conditions of different people, and a patient can obtain better urine control experience.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more particularly to a replaceable implantable medical device. Background Art

[0002] Urinary incontinence or even urinary incontinence caused by trauma, neurological dysfunction, surgical complications, and aging seriously affects the quality of life of patients and even leads to diseases such as urinary tract infection. To address this problem, people have developed a variety of technologies to solve this problem, such as implantable urinary continence devices. Artificial urinary sphincter implantation has a more definite therapeutic effect on patients with moderate to severe stress urinary incontinence.

[0003] Publication No. CN112089504A discloses an implantable urine control structure, which is mainly composed of a urine control component and a control component, wherein the control component is connected to the urine control component and is used to control the urine control component to switch between a restrained state and a released state. When the urine control component is in the restrained state, the urethra can be deformed for urine control; when the urine control component is in the released state, the urethra can be restored to its original shape for urination; Publication No. CN211243902U discloses an implantable urine control structure, which mainly includes a urine control piece and a control piece. The urine control piece is fixed on the patient's urethra and has a deformation unit that can shrink and deform in an energized state or restore its original shape in an unenergized state. The control piece is used to control the deformation unit to switch between an energized state or an unenergized state, so as to switch the urine control piece between a restrained state and a released state, thereby assisting the patient in urine control and urination, and improving the patient's usage experience.

[0004] Currently, urine control is generally achieved by squeezing or contracting the urethra. The direct squeezing method is simple and direct, but the force on the urethra is uneven, which affects the urination experience. By switching the deformation unit between the energized state and the de-energized state, the force is more uniform, but a single deformation mechanism is not stable enough and can only control the discharge of urine according to a preset pattern or a simple sensing mechanism. In addition, each person's growth and development are different, so the urethra diameter will also be different. The uniform contraction diameter cannot be adapted to different groups of people, which affects actual use and the urine control effect is unstable. For this reason, we propose a replaceable implantable medical device. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a replaceable implantable medical device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: a replaceable implantable medical device, comprising a main body; a control unit is arranged on the lower side of the main body, both ends of the main body are fixedly connected with a guard frame portion, two sets of deformation mechanisms are arranged between the two guard frame portions, a bearing frame and a battery pack are fixedly connected in the main body, a positioning shaft is rotatably connected in the bearing frame, two winding rollers are fixedly connected to the circumferential surface of the positioning shaft, a set of deformation mechanisms are arranged between the main body and two wrapping sleeves, a set of power connection mechanisms are arranged between the two sets of deformation mechanisms and the battery pack, and an adjustment mechanism for adjusting the deformation amount of the deformation mechanism is arranged in the main body;

[0007] Each group of the deformation mechanism includes a wrapping sleeve and a deformation alloy belt, one end of the wrapping sleeve is fixedly connected to one side edge of the main body, and the other end of the wrapping sleeve is detachably connected to the other side edge of the main body, one end of the deformation alloy belt is fixedly connected to the inner wall of the wrapping sleeve, and the other end of the deformation alloy belt is fixedly connected to an annular electrode sheet, and the annular electrode sheet is fixedly connected to the circumferential surface of the winding roller.

[0008] Furthermore, the adjustment mechanism includes a servo motor, a worm and a turbine, the servo motor is fixedly connected to the lower inner wall of the main body, the worm is fixedly connected to the output end of the servo motor, and the turbine is fixedly connected to the circumferential surface of the positioning shaft.

[0009] Furthermore, each group of the power connection mechanism includes a support frame and two groups of electrode assemblies, the support frame is fixedly connected to the lower inner wall of the main body, and each group of the electrode assemblies includes a conductive rod, an arc-shaped power connection sheet and a power connection head, the conductive rod is slidably connected in a slide groove of the support frame, the arc-shaped power connection sheet is fixedly connected to the upper end of the conductive rod, the upper side of the arc-shaped power connection sheet is in contact with the surface of the annular electrode sheet, the power connection head is fixedly connected to the lower end of the conductive rod, the power connection head is electrically connected to the battery pack, the spring is sleeved on the circumferential surface of the conductive rod, the baffle is fixedly connected to the circumferential surface of the conductive rod, and the baffle is located on the upper side of the spring.

[0010] Furthermore, the bottom of the main body is connected to the control unit through an extension tube, and a deformation control button is provided on the control unit. The deformation control button is electrically connected to the battery pack, and the deformation control button controls the deformation alloy belt to be in a powered or de-powered state, and can switch the deformation alloy belt to an open or contracted state to control urine.

[0011] Furthermore, the control unit is provided with an adjustment control button, which is electrically connected to the battery pack and the servo motor. The adjustment control button controls the output end of the servo motor to rotate forward and reverse to wind the deformed alloy strip into the winding roller, and then adjusts the deformation of the deformed alloy strip.

[0012] Furthermore, mounting grooves and through grooves are provided at both side edges of the main body, and the deformed alloy belt passes through the through grooves and is connected to the annular electrode sheet.

[0013] Furthermore, a positioning head is provided at one end of the wrapping sleeve close to the installation slot, and the positioning head is inserted into the installation slot and fixed by tightening screws, and the other end of the wrapping sleeve covers the upper side of the through slot.

[0014] The two groups of deformation mechanisms are centrally symmetrical, and the maximum deformation diameter of the deformation mechanism is the same as the diameter of the frame protection part.

[0015] Technical effects and advantages of the present invention:

[0016] 1. The present invention is provided with two sets of deformation mechanisms, which is conducive to the simultaneous and non-simultaneous deformation of two deformable alloy strips. The two deformable alloy strips are located between the two frame parts. The dual deformation mechanisms can achieve more precise shape changes to control the flow of urine. One deformation mechanism can be responsible for maintaining the appropriate closure of the urethra under normal conditions to prevent urine leakage; the other deformation mechanism can make corresponding shape adjustments according to changes in the pressure in the bladder, such as when the bladder is filled to a certain extent, to accurately open the urethra and allow urine to be discharged. This division of labor and cooperation can more accurately sense and respond to changes in the physiological state of the bladder and urethra than a single deformation mechanism, thereby improving the accuracy of urine control.

[0017] 2. The present invention is provided with an adjustment mechanism, which is conducive to driving the worm to rotate through the output end of the servo motor, and finally driving the two winding rollers to rotate synchronously, so that part of the deformed alloy strip is wound in the winding roller, thereby adjusting the overall length of the deformed alloy strip, and the deformation of the deformed alloy strip also changes accordingly. When implanting, the doctor can make subtle adjustments according to the actual conditions of different people to ensure that the deformation of the deformation mechanism is more in line with the actual conditions of the patients. There are great individual differences in the urinary system structure and function of different patients. A single deformation mechanism is often difficult to perform personalized adjustments to meet the special needs of each patient, ensuring that urine will not leak and the patient can get a better urine control experience.

[0018] 3. The present invention is provided with wireless control, which is beneficial for doctors and patients to adjust through wireless terminals. Patients can adjust the deformation mechanism according to their daily activities. When engaging in long-term outdoor activities, the deformation mechanism can be set to a stricter urine control mode to reduce the risk of urine leakage; while in a relatively relaxed home environment, the urine control mode can be appropriately relaxed to improve comfort. This adjustability enables patients to better control their own lives and improve patient satisfaction and overall quality of life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a structural diagram of the deformation mechanism of the present invention after disassembly.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the wrapping sleeve structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the deformed alloy strip of the present invention.

[0024] Figure 6 It is a schematic diagram of the deformation mechanism and the power connection mechanism of the present invention.

[0025] Figure 7 It is a schematic diagram of the structure of the regulating mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the structure of the power connection mechanism of the present invention.

[0027] The accompanying drawings are marked as follows: 1. main body; 101. extension tube; 102. mounting slot; 103. through slot; 2. frame portion; 3. wrapping sleeve; 301. positioning head; 302. screw; 4. control unit; 401. deformation control button; 402. adjustment control button; 5. deformation alloy belt; 501. annular electrode sheet; 6. power connection mechanism; 601. support frame; 602. conductive rod; 603. arc-shaped power connection sheet; 604. spring; 605. power connection head; 606. baffle; 7. bearing frame; 701. positioning shaft; 702. winding roller; 8. servo motor; 801. worm; 802. turbine; 10. battery pack. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The replaceable implantable medical device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0029] Reference Figure 1 and Figure 8The present invention provides a replaceable implantable medical device, comprising a main body 1, a control unit 4 is arranged on the lower side of the main body 1, both ends of the main body 1 are fixedly connected with a protective frame 2, two sets of deformation mechanisms are arranged between the two protective frame parts 2, a bearing frame 7 and a battery pack 10 are fixedly connected in the main body 1, a positioning shaft 701 is rotatably connected in the bearing frame 7, two winding rollers 702 are fixedly connected to the circumferential surface of the positioning shaft 701, a set of deformation mechanisms are arranged between the main body 1 and the two wrapping sleeves 3, a set of power connection mechanisms 6 are arranged between the two sets of deformation mechanisms and the battery pack 10, and an adjustment mechanism for adjusting the deformation amount of the deformation mechanism is arranged in the main body 1;

[0030] Each group of deformation mechanisms includes a wrapping sleeve 3 and a deformation alloy belt 5, one end of the wrapping sleeve 3 is fixedly connected to one side edge of the main body 1, and the other end of the wrapping sleeve 3 is detachably connected to the other side edge of the main body 1, one end of the deformation alloy belt 5 is fixedly connected to the inner wall of the wrapping sleeve 3, and the other end of the deformation alloy belt 5 is fixedly connected to an annular electrode sheet 501, and the annular electrode sheet 501 is fixedly connected to the circumferential surface of the winding roller 702.

[0031] In this embodiment, it is necessary to specifically explain: Figure 1 It is a schematic diagram of the deformation mechanism in a relaxed state. The main body 1 can be implanted in the patient's body. The protective frame 2 is located on both sides of the main body 1 and is used to be installed around the patient's urethra. The overall position of the main body 1 is fixed by the protective frame 2. The control unit 4 is located on the lower side of the main body 1 and can be installed at the patient's scrotum position. The deformation control button 401 and the adjustment control button 402 on the control unit 4 provide urine control, urination and adjustment functions. The deformation alloy belt 5 is installed inside the wrapping sleeve 3, and the wrapping sleeve 3 is wrapped around the surface of the deformation alloy belt 5. The deformation alloy belt 5 is composed of a medical silicone composite material, has good deformation performance, and can be deformed synchronously with the deformation alloy belt 5. The deformation alloy belt 5 is a carbon nanotube fiber composite. Shape memory alloy, this composite material combines the shape memory function of shape memory alloy and the electrical, thermal and other functions of carbon nanotube fibers. Carbon nanotube fibers have good electrical conductivity, so that the composite material can be used to manufacture intelligent sensors. When the shape of the material changes, its electrical properties will also change accordingly. By detecting the change of the electrical signal, the shape change of the material can be monitored to achieve a self-sensing function. The battery pack 10 is used to supply power to the deformable alloy belt 5. In the initial state, the deformable alloy belt 5 is in a contracted state (not shown in the figure). When urination is needed, the deformable alloy belt 5 is powered on by pressing the deformation control button 401. After the deformation alloy belt 5 is powered on, it expands and deforms, such as Figure 1 The shape after deformation is shown. At this time, the urethra is in an open state, and the patient can urinate. After urination is completed, the deformation control button 401 is pressed again to control the power off of the deformable alloy belt 5. After the power is off, the deformable alloy belt 5 contracts, thereby driving the wrapping sleeve 3 to tighten the urethra, and the patient can control urine. The operation is simple and easy to use;

[0032] What is important is that: the present invention designs two sets of deformation mechanisms, namely, two deformation alloy belts 5 that can be deformed simultaneously and at different times, and the two deformation alloy belts 5 are located between the two protective frame parts 2. The dual deformation mechanisms can realize more precise shape changes to control the flow of urine. One deformation mechanism can be responsible for maintaining the proper closure of the urethra under normal conditions to prevent urine leakage; the other deformation mechanism can make corresponding shape adjustments according to the changes in the pressure in the bladder, such as when the bladder is filled to a certain extent, to accurately open the urethra and allow urine to be discharged. This division of labor and cooperation can more accurately sense and respond to changes in the physiological state of the bladder and urethra than a single deformation mechanism, thereby improving the accuracy of urine control. For human medicine, the human body has different requirements for urine control under different physiological states, such as exercise, sleep, drinking too much water, etc., and the dual deformation mechanism can be more In order to better adapt to these changes, when in motion, one of the deformation mechanisms can dynamically adjust the shape and pressure of the urethra according to the vibration and pressure changes of the body to ensure that urine does not accidentally flow out; in the sleep state, the other deformation mechanism can switch to a low-power, high-stability mode to maintain the basic closure of the urethra, while being able to respond quickly to sudden changes in bladder pressure. This adaptability and flexibility help to improve the comfort and safety of patients using implanted deformation mechanisms, and the dual deformation mechanisms can work alternately or collaboratively to reduce the working frequency of each mechanism, thereby extending the service life of the entire deformation mechanism. At the same time, when a deformation mechanism has a minor fault, the other deformation mechanism can compensate to a certain extent to maintain the basic function of the deformation mechanism and improve the reliability of the mechanism.

[0033] The main difference between the present embodiment and the prior art is that an adjustable deformation mechanism is adopted in the present embodiment. Specifically, two sets of deformation mechanisms are both arranged on the positioning shaft 701, and the worm 801 can be driven to rotate by the output end of the servo motor 8, and finally the two winding rollers 702 are driven to rotate synchronously, so that part of the deformed alloy strip 5 is wound in the winding roller 702, thereby adjusting the overall length of the deformed alloy strip 5, and the deformation amount of the deformed alloy strip 5 also changes accordingly. When implanting, the doctor can make subtle adjustments according to the actual conditions of different people to ensure that the deformation amount of the deformation mechanism is more in line with the actual conditions of the patients. There are great individual differences in the structure and function of the urinary system of different patients. It is often difficult to perform personalized adjustments with a single deformation mechanism to meet the special needs of each patient. For example, some patients may have a shorter or wider urethra, and the shape and pressure control requirements of the deformation mechanism are different from those of other patients. Due to the limitations of its structure and working mode, it is difficult to make fine adjustments to a single deformation mechanism according to the specific situation of each patient, which reduces its applicability in different patient groups. This solution designs an adjustable deformation mechanism that can appropriately adjust the deformation amount of the deformation mechanism, that is, adjust the closing force of urine control to ensure that urine does not leak, so that patients can get a better urine control experience.

[0034] The above structure is the main structure of this embodiment, which solves the problems of unstable urination control and inability to adjust the deformation amount. The deformable alloy belt 5 is an existing structure. The specific structure and connection method of the deformation control button 401 controlling the conductivity of the deformable alloy belt 5 and the adjustment control button 402 controlling the servo motor 8 are not described in detail in this embodiment. In addition, the deformation control button 401 and the adjustment control button 402 are not fixed to a single button, and the deformation of the deformable alloy belt 5 after conductivity also belongs to the existing technology. Therefore, this application does not make detailed limitations.

[0035] Reference Figure 7 The adjustment mechanism includes a servo motor 8, a worm 801 and a turbine 802. The servo motor 8 is fixedly connected to the lower inner wall of the main body 1, the worm 801 is fixedly connected to the output end of the servo motor 8, and the turbine 802 is fixedly connected to the circumferential surface of the positioning shaft 701.

[0036] In this embodiment, it is necessary to specifically explain that: the output end of the servo motor 8 can rotate forward and reversely. Since the annular electrode sheets 501 are respectively fixed in the winding rollers 702, when working, the worm 801 is driven to rotate by the output end of the servo motor 8, and the worm 801 drives the turbine 802 to rotate slowly, and the turbine 802 drives the positioning shaft 701 to rotate slowly, and finally drives the two winding rollers 702 to rotate synchronously. At this time, the deformed alloy belt 5 is gradually moved inside the winding roller 702 due to the rotation of the winding roller 702, thereby adjusting the overall length of the deformed alloy belt 5, causing the deformation amount of the deformed alloy belt 5 to change, and then adjusting the contraction range during deformation, and the urethra force is also changed. When it can be flexibly adjusted according to the needs and physical conditions of the patient, the patient can get a better urine control experience;

[0037] Preferably, a Bluetooth control unit can be designed in the control unit 4, and doctors and patients can adjust it through a wireless terminal. For example, the patient can adjust the deformation mechanism according to his or her daily activities. When engaging in long-term outdoor activities, the deformation mechanism can be set to a stricter urine control mode to reduce the risk of urine leakage; while in a relatively relaxed home environment, the urine control mode can be appropriately relaxed to improve comfort. This adjustability enables patients to better control their lives and improve patient satisfaction and overall quality of life.

[0038] Reference Figure 8 Each group of power connection mechanism 6 includes a support frame 601 and two groups of electrode assemblies. The support frame 601 is fixedly connected to the lower inner wall of the main body 1. Each group of electrode assemblies includes a conductive rod 602, an arc-shaped power connection piece 603 and a power connection head 605. The conductive rod 602 is slidably connected in the slide groove of the support frame 601. The arc-shaped power connection piece 603 is fixedly connected to the upper end of the conductive rod 602. The upper side of the arc-shaped power connection piece 603 contacts the surface of the annular electrode sheet 501. The power connection head 605 is fixedly connected to the lower end of the conductive rod 602. The power connection head 605 is electrically connected to the battery pack 10. The spring 604 is sleeved on the circumferential surface of the conductive rod 602. The baffle 606 is fixedly connected to the circumferential surface of the conductive rod 602. The baffle 606 is located on the upper side of the spring 604.

[0039] In this embodiment, it is necessary to specifically explain that: the power connection mechanism 6 is used to conduct electricity to the two groups of deformed alloy strips 5, and each group of power connection mechanisms 6 is designed with two groups of electrode assemblies, which are respectively connected to the positive and negative electrodes of the annular electrode sheet 501. The arc-shaped power connection sheet 603 has an arc-shaped structure and can fit the two end surfaces of the annular electrode sheet 501. The power connection head 605 is energized with the battery pack 10 through the line. The current flows into the annular electrode sheet 501 through the power connection head 605, the conductive rod 602, and the arc-shaped power connection sheet 603 to complete the conduction process. In addition, a spring 604 and a baffle 606 are designed, such as Figure 8As shown, under the elastic action of the spring 604, the conductive rod 602 is pushed upward, so that the arc-shaped contact piece 603 is always in contact with the surface of the annular electrode piece 501, ensuring that power failure will not occur and ensuring the stability of the operation of the controlled deformation alloy strip 5.

[0040] Reference Figure 2-7 The bottom of the main body 1 is connected to the control unit 4 through an extension tube 101. The control unit 4 is provided with a deformation control button 401, which is electrically connected to the battery pack 10. The deformation control button 401 controls the deformable alloy belt 5 to be in a powered or de-powered state, and can switch the deformable alloy belt 5 to be in an open or contracted state to control urine; the control unit 4 is provided with an adjustment control button 402, which is electrically connected to the battery pack 10 and the servo motor 8. The adjustment control button 402 controls the output end of the servo motor 8 to rotate forward and reverse to rewind the deformable alloy belt 5 into the rewinding roller 702, and then adjusts the deformation amount of the deformable alloy belt 5.

[0041] In this embodiment, it should be specifically explained that: the deformation control button 401 is used to control the deformation of the deformable alloy strip 5 when it is powered on. The deformation control button 401 can be designed as a commonly used push-button. This solution designs two deformation mechanisms, which can provide a variety of urine control methods. A more complex control process can be controlled by a wireless terminal. The deformation control button 401 can also be designed with multiple buttons. The specific use can be designed according to the needs of the patient. During the treatment process, the doctor can adjust the deformation mechanism according to the patient's recovery process. For example, for patients who have undergone urinary system surgery, their urine control function will gradually improve as the wound heals and the tissue recovers. The doctor can adjust the parameters of the deformation mechanism in a timely manner, such as reducing the intensity of auxiliary urine control, and gradually allowing the patient's own urinary system to recover. This dynamic adjustment helps to optimize the treatment effect, avoid over-reliance on the deformation mechanism, and promote the recovery of the patient's own urine control ability.

[0042] Reference Figure 4 , mounting grooves 102 and through grooves 103 are provided at both side edges of the main body 1, the deformed alloy belt 5 passes through the through groove 103 and is connected to the annular electrode sheet 501, and a positioning head 301 is provided at one end of the wrapping sleeve 3 close to the mounting groove 102. The positioning head 301 is inserted into the mounting groove 102 and fixed by tightening the screws 302, and the other end of the wrapping sleeve 3 covers the upper side of the through groove 103.

[0043] In this embodiment, it should be specifically explained that: the mounting groove 102 is used to install the positioning head 301, the screw hole is opened on the side of the main body 1, the positioning head 301 is inserted into the mounting groove 102, and then the screw 302 is tightened to fix the positioning head 301, and then the position of the wrapping sleeve 3 is fixed. The wrapping sleeve 3 is located on the upper side of the through groove 103 to ensure that the interior of the main body 1 is in a sealed state to prevent the internal tissue fluid of the human body from entering.

[0044] Reference Figure 4 The two sets of deformation mechanisms are centrally symmetrical, and the maximum deformation diameter of the deformation mechanism is the same as the diameter of the frame portion 2.

[0045] In this embodiment, it should be specifically explained that: compared with the asymmetric deformation mode, the two sets of centrally symmetrical deformation mechanisms can fit the human urethra more closely, so that the pressure provided by the deformable alloy belt 5 after deformation is more uniform, which can provide a better urine control effect, and the deformation range of the wrapping sleeve 3 will not exceed the protective frame part 2, so as to ensure that the deformation of the wrapping sleeve 3 is within a safe range and will not harm the internal tissues of the human body.

[0046] Working principle of the present invention:

[0047] The main problem solved by this embodiment is: the use of two sets of deformation mechanisms is conducive to the simultaneous and non-simultaneous deformation of the two deformable alloy belts 5, which solves the problem that the current urine control mechanism is not precise and stable enough, thereby improving the accuracy of urine control and the reliability of the mechanism. The use of adjustable deformation mechanisms solves the problem that there are great individual differences in the structure and function of the urinary system of different patients. The deformation amount of the deformation mechanism can be appropriately adjusted, that is, the closing force of the urine control can be adjusted to ensure that urine will not leak, and the patient can get a better urine control experience.

[0048] The specific steps are as follows: first, the device is implanted in the patient's body, the main body 1 is installed around the patient's urethra, and the control unit 4 is installed at the patient's scrotum. When urine control is required, the deformation control button 401 is pressed to energize the deformation alloy belt 5, and the current flows to the deformation alloy belt 5 through the power receiving mechanism 6 and the annular electrode sheet 501. After the deformation alloy belt 5 is energized, it expands and deforms. At this time, the urethra is in an open state, and the patient can urinate. After urination is completed, the deformation control button 401 is pressed again to control the deformation alloy belt 5 to be powered off, and the deformation alloy belt 5 It contracts after power is cut off, thereby driving the wrapping sleeve 3 to tighten the urethra, and the patient can control urine. When the deformation mechanism needs to be adjusted, the servo motor 8 is started by adjusting the control button 402, and the output end of the servo motor 8 drives the worm 801 to rotate, and finally drives the two winding rollers 702 to rotate synchronously, so that part of the deformed alloy strip 5 is wound in the winding roller 702, thereby adjusting the overall length of the deformed alloy strip 5, and the deformation amount of the deformed alloy strip 5 also changes accordingly, that is, adjusting the closing force of urine control to ensure that urine will not leak, and the patient can get a better urine control experience.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A replaceable implantable medical device, comprising a main body (1), characterized in that: A control unit (4) is provided on the lower side of the main body (1); both ends of the main body (1) are fixedly connected to a guard frame portion (2); two groups of deformation mechanisms are provided between the two guard frame portions (2); a bearing frame (7) and a battery pack (10) are fixedly connected inside the main body (1); a positioning shaft (701) is rotatably connected inside the bearing frame (7); two winding rollers (702) are fixedly connected to the circumferential surface of the positioning shaft (701); a group of deformation mechanisms are provided between the main body (1) and the two wrapping sleeves (3); a group of power connection mechanisms (6) are provided between the two groups of deformation mechanisms and the battery pack (10); and an adjustment mechanism for adjusting the deformation mechanism is provided inside the main body (1); Each group of the deformation mechanisms comprises a wrapping sleeve (3) and a deformation alloy belt (5), one end of the wrapping sleeve (3) is fixedly connected to one side edge of the main body (1), the other end of the wrapping sleeve (3) is detachably connected to the other side edge of the main body (1), one end of the deformation alloy belt (5) is fixedly connected to the inner wall of the wrapping sleeve (3), the other end of the deformation alloy belt (5) is fixedly connected to an annular electrode sheet (501), and the annular electrode sheet (501) is fixedly connected to the circumferential surface of the winding roller (702).

2. A replaceable implantable medical device according to claim 1, characterized in that: The adjustment mechanism comprises a servo motor (8), a worm (801) and a turbine (802); the servo motor (8) is fixedly connected to the lower inner wall of the main body (1); the worm (801) is fixedly connected to the output end of the servo motor (8); and the turbine (802) is fixedly connected to the circumferential surface of the positioning shaft (701).

3. A replaceable implantable medical device according to claim 1, characterized in that: Each group of the power connection mechanism (6) comprises a support frame (601) and two groups of electrode assemblies, wherein the support frame (601) is fixedly connected to the lower inner wall of the main body (1), and each group of the electrode assemblies comprises a conductive rod (602), an arc-shaped power connection sheet (603) and a power connection head (605), wherein the conductive rod (602) is slidably connected to a slide groove of the support frame (601), the arc-shaped power connection sheet (603) is fixedly connected to the upper end of the conductive rod (602), and the arc-shaped power connection sheet (603) is fixedly connected to the upper end of the conductive rod (602). The upper side of the electrical connection sheet (603) contacts the surface of the annular electrode sheet (501); the electrical connection head (605) is fixedly connected to the lower end of the conductive rod (602); the electrical connection head (605) is electrically connected to the battery pack (10); the spring (604) is sleeved on the circumferential surface of the conductive rod (602); the baffle (606) is fixedly connected to the circumferential surface of the conductive rod (602); and the baffle (606) is located on the upper side of the spring (604).

4. The replaceable implantable medical device according to claim 1, characterized in that: The bottom of the main body (1) is connected to the control unit (4) via an extension tube (101); the control unit (4) is provided with a deformation control button (401); the deformation control button (401) is electrically connected to the battery pack (10); the deformation control button (401) controls the deformation alloy belt (5) to be in an energized or de-energized state, and can switch the deformation alloy belt (5) to be in an open or contracted state to control urine.

5. The replaceable implantable medical device according to claim 1, characterized in that: The control unit (4) is provided with an adjustment control button (402), the adjustment control button (402) being electrically connected to the battery pack (10) and the servo motor (8), and the adjustment control button (402) controlling the output end of the servo motor (8) to rotate forward and reverse to reel the deformed alloy strip (5) into the reeling roller (702), thereby adjusting the deformation amount of the deformed alloy strip (5).

6. The replaceable implantable medical device according to claim 1, characterized in that: The main body (1) is provided with mounting grooves (102) and through grooves (103) on both side edges, and the deformed alloy strip (5) passes through the through grooves (103) and is connected to the annular electrode sheet (501).

7. The replaceable implantable medical device according to claim 1, characterized in that: A positioning head (301) is provided at one end of the wrapping sleeve (3) close to the installation groove (102); the positioning head (301) is inserted into the installation groove (102) and fixedly installed by tightening the screw (302); the other end of the wrapping sleeve (3) covers the upper side of the through groove (103).

8. The replaceable implantable medical device according to claim 1, characterized in that: The two groups of deformation mechanisms are centrally symmetrical, and the maximum deformation diameter of the deformation mechanism is the same as the diameter of the protection frame part (2).

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