CN116236315A - Wireless artificial bladder system based on piezoelectric micropump and working method thereof - Google Patents
Wireless artificial bladder system based on piezoelectric micropump and working method thereof Download PDFInfo
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- CN116236315A CN116236315A CN202310270397.5A CN202310270397A CN116236315A CN 116236315 A CN116236315 A CN 116236315A CN 202310270397 A CN202310270397 A CN 202310270397A CN 116236315 A CN116236315 A CN 116236315A
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- 230000027939 micturition Effects 0.000 claims abstract description 76
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/042—Urinary bladders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention discloses a wireless artificial bladder system based on a piezoelectric micropump and a working method thereof; the system includes an in vivo portion and an in vitro control device. The internal part comprises an artificial bladder, internal control equipment, an auxiliary urination device, a piezoelectric pump and an air storage tank. The auxiliary urination device is provided with a concave containing area. The artificial bladder is disposed within the accommodation area of the auxiliary urination apparatus. The auxiliary urination device comprises an inner deformation layer and an outer deformation layer. The pressurizing cavity in the auxiliary urination device is connected with the air storage tank through a piezoelectric pump. The in-vivo control device comprises a magnetic induction coil; the magnetic induction coil is connected with the piezoelectric pump. The extracorporeal control apparatus comprises a wireless powered transmitting module capable of generating a varying magnetic field. The invention adopts the miniature piezoelectric pump to control the deformation of the flexible material, thereby realizing the control of the artificial bladder, and being difficult to cause damage and urinary system infection and other complications in the process of squeezing the artificial bladder due to the skin-friendly property and softness of the flexible material.
Description
Technical Field
The invention belongs to the technical field of artificial urination systems, and particularly relates to a wireless artificial bladder system based on a piezoelectric micropump and a working method thereof.
Background
The radical total bladder resection is matched with pelvic lymph cleaning and permanent urinary diversion, is a main operation mode for treating recurrent and multiple invasive bladder cancer at present, is a preferred method for treating myometrial invasive bladder cancer, and has the advantages of small operation damage, less bleeding, quick recovery, short hospitalization time and the like. However, the urethra becomes a clinical problem after the bladder of the patient is resected.
At present, the urine flow diversion operation mode used in China mainly comprises the following steps: in situ neocystology, ileocecum cystography and ureteral skin remodeling. The ileal bladder operation is a classical urinary diversion mode after radical bladder excision and is used as a basis for other diversion modes. The operation is relatively simple, the operation time is short, the postoperative re-operation rate is low, the hospitalization time is short, and the complication occurrence rate is low, which is very important for the old and the patients with other serious diseases such as hypertension, diabetes, heart disease, renal insufficiency and the like. The operation steps are that firstly, the bilateral ureter is cut off at the position 4cm away from the bladder, then, the ileum intestinal segment with the length of 15-20 cm is cut off at the position about 15cm away from the ileum blind part, and the release of the ileum shunt intestinal loop is completed. The continuity of the intestine was restored by end-to-end anastomosis. The proximal end of the shunt intestinal loop is paired with the connected ureter, and the end ends of the shunt intestinal loop are anastomosed to form a new bladder. However, ileostomy artificial bladders do not have all detrusor muscles and sensory and control nerves of a standing person, and patients cannot produce the urine meaning after the bladder is full, and cannot control the active urination of the bladder, so that self-timed urination is required. If the abdomen is pressed to assist the bladder to urinate, it is difficult to completely urinate, and the residual urine easily causes urinary system infection. Thus, the wireless artificial bladder system based on the piezoelectric micropump can be induced to grow.
Publication number "CN106580517a" provides an artificial bladder device; the artificial ureter comprises an artificial ureter body, an artificial urethra, an in-vivo implanted pressure sensor, a processing chip, a urethra closing module and a rechargeable battery. With this patent, an incision of about 7cm is made in the middle of the abdomen of a human body, an artificial bladder is placed in a lateral direction, a rechargeable battery in front of the artificial bladder is closely attached to the abdominal wall, and the artificial bladder is sutured and fixed with the nearby peritoneum, thereby fixing the artificial bladder. When urine enters and is gradually spread, the pressure sensor transmits a pressure signal to the processor chip, then the processor chip sends a wireless signal to an external wireless remote control, and when the wireless remote control end or the mobile phone control end receives the signal information, the control terminal sends out the information, so that the artificial bladder generates pressure, and the artificial bladder has the function similar to the bladder detrusor, and empties the urine.
However, the artificial bladder system disclosed in the above patent has a large volume, a complex structure, difficulty in installation, and a possibility of infection and damage to the peritoneum, although it can realize the auxiliary urination.
Disclosure of Invention
The invention aims to provide a wireless artificial bladder system based on a piezoelectric micropump and a working method thereof.
The invention provides a wireless artificial bladder system based on a piezoelectric micropump, which comprises an in-vivo part and in-vitro control equipment. The internal part comprises an artificial bladder, internal control equipment, an auxiliary urination device, a piezoelectric pump and an air storage tank. The auxiliary urination device is provided with a concave accommodating area. The artificial bladder is disposed within the accommodation area of the auxiliary urination apparatus. The auxiliary urination device comprises an inner deformation layer positioned on the inner side and an outer deformation layer positioned on the outer side. A pressurizing cavity is formed between the inner deformation layer and the outer deformation layer. The inner deformation layer has a coefficient of expansion that is greater than the existing coefficient of expansion of the outer deformation layer. The pressurizing cavity is connected with the air storage tank through a piezoelectric pump. The in-vivo control device comprises a magnetic induction coil; the magnetic induction coil is connected with the piezoelectric pump. The extracorporeal control apparatus comprises a wireless energy-supply transmitting module capable of generating a changing magnetic field.
Preferably, a first pressure sensor is arranged in the pressurizing cavity. The air storage tank is internally provided with a second pressure sensor. The air storage tank is made of titanium alloy.
Preferably, the in-vivo control device further comprises a third pressure sensor for detecting the abdominal pressure of the human body. The abdominal pressure of the human body measured by the third pressure sensor is used for reflecting the volume of the artificial bladder, and then judging whether urination is needed or not.
Preferably, the in-vivo control device further comprises a power supply module and an energy storage element. The magnetic induction coil charges the energy storage element through the power supply module. The power supply module supplies power to the electronic elements in the body part through the electric energy provided by the magnetic induction coil or the energy storage element.
Preferably, the in-vivo control device further comprises a signal processing module and a wireless communication module. The external control equipment also comprises a control terminal; the signal processing module is communicated with the control terminal through the wireless communication module.
Preferably, the external control device is mounted on an annular waistband.
Preferably, the extracorporeal control apparatus further comprises a display screen. The display screen can display the current urine volume and frequency of urination.
Preferably, the material of the inner deformation layer is poly alpha-hydroxy acid material; the material of the outer deformation layer is titanium alloy.
Preferably, the external control device is provided with a button for controlling the start and stop of urination.
The working method of the wireless artificial bladder system based on the piezoelectric micropump comprises the following steps:
step one, the third pressure sensor periodically detects the abdominal pressure of the human body. The artificial bladder gradually expands in the process of continuously storing urine, and the abdominal pressure is increased. And when the intra-abdominal pressure of the human body is larger than or equal to a preset value, entering a step two.
And step two, the in-vivo control equipment sends a urination prompt to a user.
Step three, controlling the external control equipment to execute the urination process by a user; the urination flow is as follows: the wireless energy supply transmitting module generates a variable magnetic field; the magnetic induction coil generates current in the changed magnetic field, so that the piezoelectric pump fills gas into the auxiliary urination device; the auxiliary urination device expands after being inflated with gas to squeeze the artificial bladder, so that urine in the artificial bladder is extruded outwards to finish the discharge of the urine.
Step four, the wireless energy supply transmitting module generates a changed magnetic field; the magnetic induction coil generates current in the changed magnetic field, so that the piezoelectric pump pumps the gas in the auxiliary urination device back to the gas storage tank, and the auxiliary urination device returns to the original form; the third pressure sensor continues to detect the abdominal pressure of the human body and waits for the next urination.
Preferably, in the third step, if the number of times or time that the in-vivo control device sends the urination prompt reaches the preset value, the user still does not actively control the in-vitro control device to execute the urination process, and the in-vitro control device automatically executes the urination process.
The invention has the beneficial effects that:
1. the invention adopts the miniature piezoelectric pump to control the deformation of the flexible material, thereby realizing the control of the artificial bladder, and being difficult to cause damage and urinary system infection and other complications in the process of squeezing the artificial bladder due to the skin-friendly property and softness of the flexible material.
2. According to the invention, urine volume induction of the artificial bladder is realized by detecting abdominal pressure, so that a user can be actively reminded of urination according to the urine volume in the artificial bladder, and the wireless artificial bladder system based on the piezoelectric micropump provided by the invention has all complete functions of the natural bladder, and the life quality of a patient is improved.
According to the invention, by providing a changing magnetic field outside the body, the current for driving the piezoelectric pump to operate is directly generated in the electromagnetic coil in the body, so that the control system is greatly simplified, the compactness of the wireless artificial bladder system based on the piezoelectric micropump is further improved, and the damage to the human body caused by the implantation of the wireless artificial bladder system based on the piezoelectric micropump is reduced.
Drawings
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is a schematic structural view of an in-vivo control device in the present invention.
Fig. 3 is a schematic diagram of the operation of the present invention.
Fig. 4 is a schematic structural diagram of an extracorporeal control apparatus according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, a wireless artificial bladder system based on a piezoelectric micropump includes an artificial bladder 10, an in-vivo control device 20 installed outside the artificial bladder 10, an in-vitro control device 30 in communication with the in-vivo control device 20, an auxiliary urination device 40, a micro piezoelectric pump 50, and an air reservoir 60.
The auxiliary urination apparatus 40 has a V-shaped structure. The artificial bladder 10 is disposed in a concave position of the auxiliary urination apparatus 40. The auxiliary urination apparatus 40 comprises an inner deformation layer 41 located at the inner side, an outer deformation layer 42 located at the outer side, and a first pressure sensor 43 located between the inner deformation layer 41 and the outer deformation layer 42. The inner deformation layer 41 faces the artificial bladder 10; the outer deformation layer 42 faces away from the artificial bladder 10. A closed plenum is formed between the inner deformation layer 41 and the outer deformation layer 42. When the air pressure is injected into the pressurizing cavity, the auxiliary urination device 40 expands to squeeze the artificial bladder 10, so as to realize urination control.
The inner deformation layer 41 is made of a flexible material, specifically a poly-alpha-hydroxy acid material, and can be well attached to the outer side of the artificial bladder. The outer deformation layer 42 is made of titanium alloy. The titanium alloy has excellent corrosion resistance and human body affinity, is nontoxic, does not cause heat source reaction, does not cause anaphylactic reaction, and has good physical and chemical stability; the poly alpha-hydroxy acid material has good biocompatibility and biodegradability, so that the damage to in vivo tissues is minimized. The expansion coefficient of the inner deformation layer 41 is larger than the expansion coefficient of the outer deformation layer 42; when the pressurizing cavity in the auxiliary urination apparatus 40 is pressurized, the inner deformation layer 41 deforms first to compress the artificial bladder 10 in time to discharge urine, and the outer deformation layer 42 does not deform or has extremely small deformation amplitude, so that the outer deformation degree of the auxiliary urination apparatus during internal pressurization is effectively reduced. When the pressure in the pressurizing chamber of the auxiliary urination apparatus 40 is reduced, the inner deformation layer 41 automatically returns to the original state to wait for the next urination cycle.
The bottom of the auxiliary urination device 40 is provided with a vent communicating with the pressurizing chamber. The vent of the auxiliary urination device 40 is connected with the air storage tank 60 through the micro piezoelectric pump 50. The micro piezoelectric pump 50 controls the deformation of the auxiliary urination device 40 by pressing in and sucking out air stored in the air storage tank 60.
The first pressure sensor 43 is used for monitoring the pressure of the pressurizing cavity in the auxiliary urination apparatus 40 at any time, so as to avoid damage to the internal organs caused by overlarge expansion volume due to overlarge internal pressure of the auxiliary urination apparatus 40. When the first pressure sensor 43 detects that the pressure is too high, a signal is sent to the internal control device 20 in time, and the signal processing module 23 stops the micro piezoelectric pump 50 in time through the magnetic induction coil 24 after receiving the signal.
The air tank 60 includes a tank body 61 and a second pressure sensor 62. The tank 61 is a miniature air tank. The second pressure sensor 62 is provided inside the tank 61; the material of the can 61 is titanium alloy. When air is pressed into or extracted from the tank 61, the second pressure sensor 62 monitors the air pressure in the tank 61 at any time, so as to avoid the reduction of the service life of the air storage tank 60 and the damage to internal organs of a human body caused by the excessive or insufficient pressure in the tank 61.
Preferably, the air tank 60 is made of titanium alloy.
As shown in fig. 2, the in-vivo control device 20 includes a third pressure sensor 21, a wireless communication module 22, a signal processing module 23, a magnetic induction coil 24, a power supply module 25, and an energy storage element 26. The magnetic induction coil 24 is connected to the micro piezoelectric pump 50 to form a closed loop. The magnetic induction coil 24 is connected to a power supply module 25. The power supply module 25 is connected to the energy storage element 26.
The third pressure sensor 21 is used to monitor abdominal pressure.
The wireless communication module 22 is configured to wirelessly communicate with the extracorporeal control apparatus 30.
The signal processing module 23 is configured to receive the signals from the wireless communication module 22 and the magnetic induction coil 24, and control the start and stop of the micro piezoelectric pump 50 after processing the signals.
The magnetic induction coil 24 is used for cutting magnetic lines of force to generate current and controlling the start and stop of the micro piezoelectric pump 50.
The power supply module 25 is used for supplying power to the first pressure sensor 43, the second pressure sensor 62, the third pressure sensor 21, the wireless communication module 22 and the signal processing module 23.
The energy storage element 26 is used for converting the surplus energy generated by the magnetic induction coil 24 into other energy for storage, and is used as a backup power source when the in-vivo control device 20 is in a power failure.
The in-vivo control device 20 has a third pressure sensor 21 therein, which will read abdominal pressure once at regular time intervals for monitoring urine storage in the artificial bladder 10. Since the abdominal pressure is positively correlated with the volume of the artificial bladder 10, the in-vivo control device 20 monitors the urine reserve in the artificial bladder 10 through the third pressure sensor 21.
The tank of the in-vivo control device 20 is made of titanium metal.
The wireless communication module 22 communicates with the external control device 30 using a bluetooth or Zigbee communication protocol.
As shown in fig. 3, the wireless artificial bladder system based on the micro piezoelectric pump works as follows:
the artificial bladder 10 expands in volume during the gradual filling of urine, thereby changing abdominal pressure. When urination is not needed, the micro pressure sensor does not receive signals of the change of the abdominal pressure, the micro piezoelectric pump is in a silent state, and the flexible material is attached to the outer side of the artificial bladder and does not deform.
When the artificial bladder 10 is full of urine, the abdominal pressure is continuously increased, the third pressure sensor 21 in the in-vivo control device 20 continuously reads the pressure until the pressure enters the preset urination pressure range, at this time, the in-vivo control device 20 can send a urine full-storage signal to the in-vitro control device 30 to inform a user that the urine in the artificial bladder 10 is close to full storage, the in-vitro control device 30 is reminded to press a start button in the in-vitro control device 30, the in-vitro control device 30 can send a signal for starting the micro piezoelectric pump 50 to the in-vivo control device 20, and the signal processing module 23 in the in-vivo control device 20 sends a signal for starting the micro piezoelectric pump 50 through the magnetic induction coil 24 to press the air in the air storage tank 60 into the auxiliary urination device 40, and the inside of the auxiliary urination device 40 is pressurized.
Because the inner side and the outer side of the auxiliary urination device are made of two materials with different expansion coefficients, when the micro piezoelectric pump presses the air in the air storage tank into the auxiliary urination device, the inner deformation layer 41 with large expansion coefficient is deformed firstly, and the artificial bladder is extruded to discharge urine. When the artificial bladder 10 empties, the abdominal pressure is reduced to the preset value of the in-vivo control device 20, and at this time, the in-vivo control device 20 activates the micro piezoelectric pump 50 again through the magnetic induction coil 24 to pump out the air in the auxiliary urination device 40 and store the air in the air storage tank 60. If the user has discomfort during urination, the inhalation of the micro piezoelectric pump 50 can be terminated in advance by the stop button on the external control device 30. In the above process, the magnetic induction coil 24 generates an electric current under the action of the alternating magnetic field provided by the external control device 30.
As shown in fig. 4, the extracorporeal control apparatus 30 comprises an annular waistband 31, and a low power display screen 32, a control terminal 33 and a wireless power supply transmitting module 34 mounted on the annular waistband 31.
The annular waistband 31 is worn at the waist and abdomen. The annular waistband is made of Modal material, and the material has excellent moisture absorption capacity, air permeability and excellent skin-friendly property.
The low power display 32 is used to display the current urine volume and frequency of urination.
The control terminal 33 is used for controlling the low-power consumption display screen 32 to display, generating a changing magnetic field through the wireless energy supply transmitting module 34 and communicating with the wireless communication module 22. The control terminal 33 is provided with a key for controlling the start and stop of urination.
The wireless energy-supplying transmitting module 34 is used for transmitting an alternating electromagnetic field and performing wireless communication.
In particular use, a user wears the external control device 30 at the waist such that the wireless energy-providing transmitting module 34 in the external control device 30 is aligned with the magnetic induction coil 24 in the internal control device 20, facilitating control and charging of the internal control device. When the current urine volume in the low power display 32 exceeds a certain value, the control terminal 33 slightly vibrates a button for reminding the user to start urination in time. When the control terminal 33 slightly vibrates for 3 times continuously, the user still does not press the button for starting urination in time, the control terminal 33 sends a signal for starting urination to the in-vivo control device 20 through the wireless energy supply transmitting module 34 under the condition that the button for starting urination is not pressed, and the urine is emptied in time to ensure the body health of the user. The control terminal 33 will turn on and off the wireless power transmission module 34 at regular time to ensure that the in-vivo control device 20 implanted in the body can operate continuously.
In this embodiment, the size of supplementary urination apparatus and the size of gas holder are rationally set up according to the size of artifical bladder and the size of human to guarantee that supplementary urination apparatus can empty the urine in the artifical bladder smoothly after taking place deformation, can the at utmost reduce the damage to artifical bladder again.
Claims (10)
1. A wireless artificial bladder system based on a piezoelectric micropump, comprising an in vivo part and an in vitro control device (30); the internal part comprises an artificial bladder (10), an internal control device (20) and an auxiliary urination device (40); the method is characterized in that: the internal part also comprises a piezoelectric pump (50) and an air storage tank (60); the auxiliary urination device (40) is provided with a concave accommodating area; the artificial bladder (10) is arranged in the accommodating area of the auxiliary urination device (40); the auxiliary urination device (40) comprises an inner deformation layer (41) and an outer deformation layer (42); a pressurizing cavity is formed between the inner deformation layer (41) and the outer deformation layer (42); the expansion coefficient of the inner deformation layer (41) is larger than that of the outer deformation layer (42); the pressurizing cavity is connected with the air storage tank (60) through a piezoelectric pump (50); the in-vivo control device (20) comprises a magnetic induction coil (24); the magnetic induction coil (24) is connected with the piezoelectric pump; the extracorporeal control apparatus (30) includes a wireless powered transmitting module (34) capable of generating a varying magnetic field.
2. A wireless artificial bladder system based on a piezoelectric micropump according to claim 1, wherein: a first pressure sensor (43) is arranged in the pressurizing cavity; the air storage tank (60) is internally provided with a second pressure sensor (62).
3. A wireless artificial bladder system based on a piezoelectric micropump according to claim 1, wherein: the in-vivo control device (20) also comprises a power supply module (25) and an energy storage element (26); the magnetic induction coil (24) charges the energy storage element (26) through the power supply module (25); the power supply module (25) supplies power to the electronic components in the body part through the electric energy provided by the magnetic induction coil (24) or the energy storage element (26).
4. A wireless artificial bladder system based on a piezoelectric micropump according to claim 1, wherein: the in-vivo control device (20) also comprises a signal processing module (23) and a wireless communication module (22); the external control equipment (30) also comprises a control terminal (33); the signal processing module (23) communicates with the control terminal (33) through the wireless communication module (22).
5. A wireless artificial bladder system based on a piezoelectric micropump according to claim 1, wherein: the external control device (30) is arranged on the annular waistband (31).
6. A wireless artificial bladder system based on a piezoelectric micropump according to claim 1, wherein: the extracorporeal control apparatus (30) further comprises a display screen (32) for displaying the current urine volume and frequency of urination, and keys for controlling the start and stop of urination.
7. A wireless artificial bladder system based on a piezoelectric micropump according to claim 1, wherein: the inner deformation layer (41) is made of poly alpha-hydroxy acid materials; the material of the outer deformation layer (42) is titanium alloy.
8. A wireless artificial bladder system based on a piezoelectric micropump according to any one of claims 1-7, wherein: the in-vivo control device (20) also comprises a third pressure sensor (21) for detecting the abdominal pressure of the human body.
9. The method of operating a wireless artificial bladder system based on a piezoelectric micropump of claim 8, wherein: the method comprises the following steps:
step one, a third pressure sensor (21) periodically detects the abdominal pressure of a human body; the artificial bladder (10) gradually expands in the continuous urine storage process, and the abdominal pressure is increased; when the intra-abdominal pressure of the human body is greater than or equal to a preset value, entering a step two;
step two, the in-vivo control device (20) sends a urination prompt to a user;
step three, a user controls the external control equipment (30) to execute a urination process; the urination flow is as follows: a wireless powered transmitting module (34) generates a varying magnetic field; the magnetic induction coil (24) generates current in the changed magnetic field, so that the piezoelectric pump (50) charges gas into the auxiliary urination device (40); the auxiliary urination device (40) expands after being inflated to squeeze the artificial bladder (10), so that urine in the artificial bladder (10) is squeezed outwards to finish the discharge of the urine;
step four, the wireless energy supply transmitting module (34) generates a variable magnetic field; the magnetic induction coil (24) generates current in the changed magnetic field, so that the piezoelectric pump (50) pumps the gas in the auxiliary urination device (40) back to the gas storage tank (60), and the auxiliary urination device (40) returns to the original shape; the third pressure sensor (21) continues to detect the abdominal pressure of the human body and waits for the next urination.
10. The method for operating a wireless artificial bladder system based on a piezoelectric micropump according to claim 9, wherein: in the third step, if the number of times or time of the in-vivo control device (20) sending out the urination prompt reaches the preset value, the user still does not actively control the in-vitro control device (30) to execute the urination process, and the in-vitro control device (30) automatically executes the urination process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310270397.5A CN116236315A (en) | 2023-03-20 | 2023-03-20 | Wireless artificial bladder system based on piezoelectric micropump and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310270397.5A CN116236315A (en) | 2023-03-20 | 2023-03-20 | Wireless artificial bladder system based on piezoelectric micropump and working method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577172A (en) * | 2023-07-14 | 2023-08-11 | 广州兰泰胜科技有限公司 | Urine sample pretreatment device based on coprecipitation-separation oxidation method |
| CN117017567A (en) * | 2023-08-12 | 2023-11-10 | 上海市第一人民医院 | Implantable bladder contraction system, working method and artificial bladder |
-
2023
- 2023-03-20 CN CN202310270397.5A patent/CN116236315A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116577172A (en) * | 2023-07-14 | 2023-08-11 | 广州兰泰胜科技有限公司 | Urine sample pretreatment device based on coprecipitation-separation oxidation method |
| CN116577172B (en) * | 2023-07-14 | 2023-10-27 | 广州兰泰胜科技有限公司 | Urine sample pretreatment device based on coprecipitation-separation oxidation method |
| CN117017567A (en) * | 2023-08-12 | 2023-11-10 | 上海市第一人民医院 | Implantable bladder contraction system, working method and artificial bladder |
| CN117017567B (en) * | 2023-08-12 | 2024-04-09 | 上海市第一人民医院 | Implantable bladder contraction system, working method and artificial bladder |
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