Indwelling catheterization monitoring device and application method thereof

Abstract

The invention relates to the technical field of medical equipment, in particular to an indwelling catheterization monitoring device and an application method thereof. The device comprises a catheter and a urine pressure monitoring assembly, the catheter comprises an in-vivo section and an in-vitro section, the in-vivo section comprises a catheterization channel, an injection channel and a pressure measuring channel which are mutually independent, and the in-vitro section comprises a catheterization connecting pipe, an injection connecting pipe and a pressure measuring connecting pipe which are mutually independent; one end of the catheterization channel is hermetically connected with the catheterization connecting pipe, and the other end is positioned inside the bladder of a patient during use; one end of the injection channel is connected with a balloon, and the other end is hermetically connected with the injection adapter; the pressure measuring channel is used for transmitting pressure information in the bladder of the patient; the urine pressure monitoring assembly comprises a pressure sensor and a first processor, and the pressure sensor is used for detecting the urine pressure value of a patient. The device can monitor the urine pressure value in the bladder of a patient in real time, a urine pressure value change curve is formed in combination with time, the autonomous urination capacity recovery condition of the patient can be analyzed, and then the removal time of the indwelling catheter can be determined conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an indwelling urinary catheterization monitoring device and an application method thereof. Background Art

[0002] Patients with urinary dysfunction after pelvic surgery such as gynecology, anorectal surgery, and urology surgery need to have an indwelling urinary catheter placed. After the patient regains the ability to urinate independently, the indwelling urinary catheter needs to be removed in a timely manner.

[0003] However, in the existing clinical nursing practice, it is difficult to directly grasp the recovery of the patient's autonomous urination ability, and the timing of removing the indwelling catheter depends on clinical experience. This usually leads to the removal of the indwelling catheter too early or too late. In the case of premature removal of the indwelling catheter, the patient has not yet recovered the ability to urinate autonomously, and a second indwelling catheter needs to be placed, which increases the patient's pain and the workload of medical staff; in the case of late removal of the indwelling catheter, the patient has already recovered the ability to urinate autonomously, and the indwelling catheter may be blocked by the switch during autonomous urination, causing the pain of passive urine retention and increasing the risk of urinary tract infection. Summary of the invention

[0004] The purpose of the present invention is to provide an indwelling urinary catheter monitoring device and an application method thereof. Relying on an indwelling urinary catheter, the urine pressure in the patient's bladder can be monitored in real time through the indwelling urinary catheter, and the urine pressure change curve in the process of draining the urine in the patient's bladder can be combined to analyze the patient's autonomous urination ability recovery, thereby providing objective data support for the removal timing of the indwelling urinary catheter, so that medical staff can remove the indwelling urinary catheter for the patient at a more accurate time, which has important clinical significance.

[0005] On one hand, the present invention provides an indwelling urinary catheter monitoring device, which includes a urinary catheter and a urine pressure monitoring component, wherein the urinary catheter includes an internal section and an external section, wherein the internal section at least includes a urinary catheterization channel, an injection channel and a pressure measuring channel which are independent of each other, and the external section at least includes a urinary catheterization pipe, an injection pipe and a pressure measuring pipe which are independent of each other; one end of the urinary catheterization channel is sealedly connected to the urinary catheterization pipe, and the other end is located inside the patient's bladder when in use, and the urinary catheterization channel can guide urine in the patient's bladder to the urinary catheterization pipe; one end of the injection channel is connected to a balloon, and the other end of the injection channel is sealedly connected to the injection pipe, and the injection channel can guide fluid from the injection pipe to the balloon; the pressure measuring channel is used to transmit pressure information in the patient's bladder; The urine pressure monitoring component includes a pressure sensor and a first processor. The pressure sensor is used to detect the urine pressure value of the patient. The first processor is used to process the urine pressure value and is arranged outside the urinary catheter.

[0006] Furthermore, the pressure sensor is arranged on one end of the in-vivo section away from the pressure measuring tube, and the pressure sensor is electrically connected to the first processor via a pressure measuring data line arranged in the pressure measuring channel; when in use, the pressure detection port of the pressure sensor is exposed to the patient's bladder.

[0007] In order to reduce the requirements on the size, electrical insulation performance, waterproof performance, etc. of the pressure sensor. Optionally, the pressure sensor is arranged on the end of the external section away from the pressure measuring channel, and a head is also arranged on the end of the internal section of the catheter away from the external section, and the end surface of the head connected to the internal section extends two protrusions facing the internal section, and the two protrusions are respectively inserted into and block the end of the urinary catheter channel and the end of the injection channel; the head and the internal section are fixedly sealed; an elastic diaphragm is sealed and connected at one end of the pressure measuring channel away from the pressure measuring pipe, and the end of the pressure measuring pipe away from the pressure measuring channel is connected to the pressure detection port of the pressure sensor; the head is provided with an annular groove at the corresponding section of the elastic diaphragm; the sealed cavity formed by the head, the elastic diaphragm, the pressure measuring channel, the pressure measuring pipe and the pressure detection port is filled with a fluid with a preset pressure; the pressure sensor is electrically connected to the first processor; when in use, one side of the elastic diaphragm is exposed to the patient's bladder.

[0008] Furthermore, a clamp switch is provided on the catheter tube, and the clamp switch is used to block or connect the catheter tube. When a first preset time has passed and / or the urine pressure value exceeds a first preset threshold value, the clamp switch is turned on to urinate, and the clamp switch is turned off when the urine pressure value is lower than a second preset threshold value.

[0009] Further, the clamping switch comprises a box body and a driving motor, wherein a first sliding groove and a second sliding groove are arranged in a collinear manner in the box body, and a first sliding block and a second sliding block are slidably installed in the first sliding groove and the second sliding groove respectively; A first abutting portion and a second abutting portion are respectively provided on the end surfaces of the first slider and the second slider facing each other, and a first pressing portion and a second pressing portion are also respectively provided on the end surfaces of the first slider and the second slider facing each other; One end of the first slider away from the second slider is connected to the box body via a first compression spring, and one end of the second slider away from the first slider is connected to the box body via a second compression spring, and the release direction of the elastic potential energy of the first compression spring and the second compression spring is parallel to the sliding direction of the first slider; When in use, the urinary catheter tube is inserted between the first squeezing part and the second squeezing part, and the first compression spring and the second compression spring enable the first squeezing part and the second squeezing part to clamp the urinary catheter tube and block the flow of fluid in the urinary catheter tube; The output shaft of the driving motor is perpendicular to the sliding direction of the first slider, and a cam is installed on the output shaft. When the motor rotates, the circumferential surface of the cam can abut against the first abutting portion and the second abutting portion and push the first slider and the second slider to slide, so that the first pressing portion and the second pressing portion are away from each other; The driving motor is electrically connected to the first processor.

[0010] Furthermore, the indwelling urinary catheterization monitoring device also includes a urine volume monitoring component, which includes a weighing sensor and a urine collection bag. One end of the weighing sensor is fixedly arranged, and the other end is connected to the urine collection bag; the weighing sensor is electrically connected to the first processor.

[0011] Furthermore, one end of the urinary catheterization pipe away from the urinary catheterization channel is fixedly connected to the urine collecting bag.

[0012] For patients who use an indwelling urinary catheter for a long time, the above-mentioned "integrated" indwelling urinary catheter monitoring device with the urinary catheter tube and the urine collection bag fixedly connected has the following problems: the urine collection bag usually needs to be replaced every 3-7 days, and the integrated structure means that the urinary catheter needs to be reinserted every time the urine bag is replaced, which brings unnecessary pain to the patient. To this end, optionally, the end of the urinary catheter tube away from the urinary catheter channel and the access tube of the urine collection bag are detachably connected; A flexible sheath is sealed and connected to the outside of the urinary catheter tube, and the sheath can be folded along the length direction of the urinary catheter tube; An elastic clamping ring is also arranged on the outer wall of the opening side of the sleeve, and the clamping ring can tighten the sleeve to the outer wall of the access pipe.

[0013] Furthermore, the indwelling urinary catheterization monitoring device further comprises a wireless communication module, and a plurality of the indwelling urinary catheterization monitoring devices are connected to a host computer via the wireless communication module; The host computer can record in real time the urine pressure value and urine volume value monitored by each of the indwelling urinary catheterization monitoring devices.

[0014] Another aspect of the present invention provides an application method of an indwelling urinary catheterization monitoring device. Based on the aforementioned indwelling urinary catheterization monitoring device, the application method comprises: Determining whether the patient's autonomous urination ability has been restored by the indwelling urinary catheterization monitoring device includes: The indwelling urinary catheterization monitoring device is applied to a patient, and the urinary catheter tube is blocked, and the urine pressure value of the patient is monitored in real time through the urine pressure monitoring component. When a first preset time has passed and / or the urine pressure value exceeds a first preset threshold, the urinary catheter tube is connected to drain the urine in the patient's bladder; During the process of draining urine from the patient's bladder, if the change in the urine pressure value in the bladder is greater than a preset change and / or the duration of the urine pressure value above the urine pressure value when draining urine from the patient's bladder is greater than a second preset duration, it is determined that the patient's autonomous urination ability has been restored.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. An indwelling urinary catheterization monitoring device and an application method thereof provided by an embodiment of the present disclosure can automatically open a clamping switch to start urination when a first preset time has passed and / or the urine pressure value exceeds a first preset threshold, and close the clamping switch to store urine when the urine pressure value is lower than a second preset threshold, thereby reducing the labor intensity of medical staff by automatically adjusting the opening and closing of the clamping switch; 2. An indwelling urinary catheterization monitoring device and an application method thereof provided by the embodiment of the present disclosure, on the one hand, the provision of the sheath can greatly increase the contact area between the urinary catheter tube and the access tube, thereby increasing the static friction between the two, and can prevent loosening; on the other hand, the tie ring can tighten the sheath to the outer wall of the access tube, thereby enhancing the sealing of the connection between the urinary catheter tube and the access tube, and can avoid leakage at the connection between the two and infection caused by leakage; in addition, the eversion of the sheath can facilitate the disinfection of the inner side of the sheath and the part of the urinary catheter tube covered by the sheath, and can greatly reduce the risk of infection caused by exposure of the tube position during the replacement of the urine collection bag; 3. An indwelling urinary catheter monitoring device and an application method thereof provided in the embodiments of the present disclosure can draw a urine pressure change curve by combining the monitored urine pressure value with time, and by analyzing the urine pressure change curve during the patient's urination process, it can be determined whether the patient's autonomous urination ability has recovered (the indwelling urinary catheter can be removed when the autonomous urination ability has recovered), thereby providing objective measurement data basis for the timing of removing the indwelling urinary catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of a urinary catheter according to an embodiment of the present invention, wherein the left side of the figure shows the state of the urinary catheter before the balloon is inflated, and the right side of the figure shows the state of the urinary catheter after the balloon is inflated; Figure 2The sectional view of the urinary catheter according to the embodiment of the present invention is shown in the figure on the left, wherein the longitudinal sectional view of the urinary catheter is shown in the figure on the left. a The image is a partial enlarged view of area A on the left. b The figure is a schematic diagram of the area when the balloon is in an expanded state; Figure 3 This is a cross-sectional view of a urinary catheter according to an embodiment of the present invention, wherein: c The picture shows a cross-sectional view of the location of the urinary catheter. d The picture shows a cross-sectional view of the balloon's location and the balloon is in a deflated state. e The image size is d A partial enlarged view of area B in the image. f The figure is a cross-sectional view of the balloon at its location and the balloon is in an expanded state at this time; Figure 4 It is a cross-sectional view of another structure of a urinary catheter according to an embodiment of the present invention, wherein the left side of the figure shows a longitudinal cross-sectional view of the urinary catheter. h The picture shows a cross-sectional view of the position where the end of the urinary catheterization channel and the end of the injection channel are blocked by the head. i The image sheet is a partial enlarged view of area C in the left image sheet; Figure 5 Based on Figure 4 The left side of the figure shows a cross-sectional view of the elastic membrane of the urinary catheter, wherein the left side of the figure shows a case where the cross section of the annular groove is in a circular ring shape, and the right side of the figure shows a case where the cross section of the annular groove is in a semicircular ring shape; Figure 6 It is a schematic diagram of a urinary catheter connected to a urine volume monitoring component according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of a clamping switch according to an embodiment of the present invention, wherein the urinary catheter tube is squeezed and blocked by the first slider and the second slider; Figure 8 is a cross-sectional view of a clamp switch according to an embodiment of the present invention; Fig. 9 It is a cross-sectional view of a detachable connection structure of a urinary catheter tube and an access tube of a urine collection bag according to an embodiment of the present invention, wherein: j The figure is a longitudinal section view of the catheter tube and the access tube after the sheath is wrapped around the access tube. k The figure is a longitudinal sectional view of the sheath flipped up along the length direction of the urinary catheter tube toward the internal body section after the urinary catheter tube and the access tube are connected; Fig.10 This is another cross-sectional view of the detachable connection structure of the urinary catheter tube and the access tube of the urine collection bag according to an embodiment of the present invention, wherein: lThe figure is a longitudinal section view of the catheter tube and the access tube after the sheath is wrapped around the access tube. m The figure is a longitudinal sectional view of the sheath flipped up along the length direction of the urinary catheter tube toward the internal body section after the urinary catheter tube and the access tube are connected; Fig.11 The figure is a urine pressure value variation curve diagram according to an embodiment of the present invention.

[0017] Marks and corresponding parts names in the attached drawings: 111-urinary catheterization channel; 1111-urinary catheterization port; 112-injection channel; 1121-balloon; 113-pressure measuring channel; 1131-elastic diaphragm; 121-urinary catheterization tube; 1211-wrapping sleeve; 1212-clamp ring; 1213-pull ring; 1214-pressing plate; 12141-hook part; 1215-third abutment part; 1216-fourth abutment part; 1217-sliding sleeve; 122-injection tube; 123-pressure measuring tube; 13-head; 131-pit; 132-ring groove; 2 1-pressure sensor; 22-first processor; 23-pressure measurement data line; 3-clamp switch; 31-box body; 311-first slide slot; 312-second slide slot; 32-drive motor; 33-first slider; 331-first abutment portion; 332-first extrusion portion; 34-second slider; 341-second abutment portion; 342-second extrusion portion; 35-first compression spring; 36-second compression spring; 37-cam; 38-locking buckle; 41-weighing sensor; 42-urine collection bag; 421-access tube. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0019] In order to overcome the technical problem that it is difficult to directly grasp the recovery of the patient's autonomous urination ability in the existing clinical nursing practice, and thus it is necessary to rely on clinical experience to determine the timing of removing the indwelling catheter. Avoid the secondary placement of the indwelling catheter caused by premature removal of the indwelling catheter, thereby avoiding unnecessary pain for the patient and adding extra workload to the medical staff; or avoid the patient's passive urine retention caused by the indwelling catheter being in a closed state when the patient urinates autonomously due to the indwelling catheter being removed too late, and avoid the risk of urinary tract infection caused by the unnecessary and prolonged retention of the indwelling catheter.

[0020] To this end, the present invention provides an indwelling urinary catheter monitoring device and an application method thereof. Relying on an indwelling urinary catheter, the urine pressure in the patient's bladder can be monitored in real time through the indwelling urinary catheter, and the urine pressure change curve in the process of draining the urine in the patient's bladder can be combined to analyze the patient's autonomous urination ability recovery, thereby providing objective data support for the removal timing of the indwelling urinary catheter, so that medical staff can remove the indwelling urinary catheter for the patient at a more accurate time, which has important clinical significance.

[0021] Embodiment 1: like Figures 1 to 8 As shown, this embodiment provides an indwelling urinary catheter monitoring device, which includes a urinary catheter and a urine pressure monitoring component; The urinary catheter comprises an in-vivo section and an out-vivo section, wherein the in-vivo section at least comprises a mutually independent urinary catheterization channel 111, an injection channel 112 and a pressure measuring channel 113, and the out-vivo section at least comprises a mutually independent urinary catheterization pipe 121, an injection pipe 122 and a pressure measuring pipe 123; one end of the urinary catheterization channel 111 is sealedly connected to the urinary catheterization pipe 121, and the other end is located inside the patient's bladder when in use, and the urinary catheterization channel 111 can guide urine in the patient's bladder to the urinary catheterization pipe 121; one end of the injection channel 112 is connected to a balloon 1121, and the other end of the injection channel 112 is sealedly connected to the injection pipe 122, and the injection channel 112 can guide fluid from the injection pipe 122 to the balloon 1121; the pressure measuring channel 113 is used to transmit pressure information in the patient's bladder; The urine pressure monitoring component includes a pressure sensor 21 and a first processor 22. The pressure sensor 21 is used to detect the urine pressure value of the patient. The first processor 22 is used to process the urine pressure value and is arranged outside the urinary catheter.

[0022] When in use, the in-body section is inserted along the patient's urethra so that the balloon 1121 is located in the patient's bladder; a preset amount of fluid is filled into the balloon 1121 through the injection connecting pipe 122 to expand and fill the balloon 1121, thereby preventing the catheter from falling out of the patient's urethra during the retention process through the expanded balloon 1121; the injected fluid can be gas or liquid, and preferably, the injected fluid is physiological saline.

[0023] Specifically, Figure 2 As shown, the pressure sensor 21 is arranged at one end of the in-vivo section away from the pressure measuring pipe 123 (i.e., arranged in the patient's body), and the pressure sensor 21 is electrically connected to the first processor 22 via a pressure measuring data line 23 arranged in the pressure measuring channel 113; when in use, the pressure detection port of the pressure sensor 21 is exposed to the patient's bladder. Preferably, as Figure 2As shown in the middle left figure, in this embodiment, a head 13 is further provided at one end of the in-vivo section of the catheter away from the extracorporeal section, and a pit 131 is further provided at the front end of the head 13. The pressure sensor 21 is arranged in the head 13 and the pressure detection port of the pressure sensor 21 is exposed to the position of the pit 131. Therefore, the pressure detection port can directly contact the urine in the patient's bladder to facilitate the measurement of an accurate urine pressure value. At the same time, the pressure sensor 21 can be prevented from directly contacting the inner wall of the patient's bladder, thereby preventing damage to the inner wall of the patient's bladder.

[0024] It should be understood that the first processor 22 has a corresponding packaging shell for packaging protection, and the indwelling urinary catheterization monitoring device can be directly plugged into a power interface or powered by a battery module.

[0025] like Figure 4 , Figure 5As shown, in another specific practice of this embodiment, the pressure sensor 21 is arranged on the end of the external section away from the pressure measuring channel 113 (that is, arranged outside the patient's body), and a head 13 is also arranged on the end of the internal section of the catheter away from the external section, and the end surface of the head 13 connected to the internal section extends toward the internal section. Two protrusions are inserted into and block the end of the urinary catheter channel 111 and the end of the injection channel 112 respectively; the head 13 is fixedly sealed and connected to the internal section; the pressure measuring channel 113 is away from the pressure measuring pipe 12 3 is sealed with an elastic diaphragm 1131, and one end of the pressure measuring pipe 123 away from the pressure measuring channel 113 is connected to the pressure detection port of the pressure sensor 21; the corresponding section of the head 13 located inside the elastic diaphragm 1131 is provided with an annular groove 132; the sealed cavity formed by the head 13, the elastic diaphragm 1131, the pressure measuring channel 113, the pressure measuring pipe 123 and the pressure detection port is filled with a fluid with a preset pressure; the pressure sensor 21 and the first processor 22 are electrically connected; when in use, one side of the elastic diaphragm 1131 is exposed to the patient's bladder. The fluid with a preset pressure filled in the sealed cavity can be gas or liquid. Preferably, the fluid with a preset pressure filled in the sealed cavity is gas. Based on this, the patient's urine pressure acts on the fluid with a preset pressure in the sealed cavity through the elastic diaphragm 1131, thereby changing the pressure of the fluid, and detecting the pressure changes of these fluids through the pressure sensor 21, thereby detecting the changes in the urine pressure value in the patient's bladder. Compared to the aforementioned method of setting the pressure sensor 21 on the end of the in-vivo section away from the pressure measuring tube 123, the pressure sensor 21 is prevented from directly contacting the urine, thereby preventing the problem of urine crystals deposited at the pressure detection port causing detection errors; in addition, compared to the pressure sensor 21 being built into the head 13 of the catheter, it is less restricted by size, and a relatively large pressure sensor 21 can be used, which can reduce costs. In addition, when the fluid filled in the sealed cavity is gas, the pressure sensor 21 does not contact the liquid, and the requirements for the waterproof performance and electrical insulation performance of the pressure sensor 21 are low. It should be understood that the outer diameter of the section where the elastic diaphragm 1131 is located is comparable to the outer diameter of the in-vivo section. In addition, if Figure 4 middle i As shown in the figure, the head 13 is provided with an annular groove 132 (such as Figure 5 As shown, the cross section of the annular groove 132 can be a circular ring or a sector ring, wherein: Figure 5The right side of the figure shows that the cross section of the annular groove 132 is semicircular), thereby providing deformation space for the elastic diaphragm 1131; the fluid with a preset pressure filled in the sealed cavity is pre-filled and does not need to be filled on site. When in use, the catheter can be directly inserted along the patient's urethra. In this embodiment, the pressure sensor 21 can be separately packaged at the end of the pressure measuring tube 123 away from the pressure measuring channel 113, and then electrically connected to the first processor 22 through a data transmission line, or the pressure measuring tube 123 can be longer, so that the pressure sensor 21 and the first processor 22 are packaged in the same housing.

[0026] In addition, the indwelling urinary catheterization monitoring device also includes a wireless communication module, a display module and an alarm module electrically connected to the first processor 22. Accordingly, for the medical care site using the indwelling urinary catheterization monitoring device, each indwelling urinary catheterization monitoring device can be connected to the same host computer through the wireless communication module of each indwelling urinary catheterization monitoring device, and then the host computer is used for unified management (real-time recording and storage of urine pressure values ​​monitored by each indwelling urinary catheterization monitoring device and urine pressure-time curve generated by the first processor 22) and generation and archiving of urine pressure monitoring reports; the display module (the display module can be a separate display, or it can be set in the same housing as the first processor) can be used to display the urine pressure value in real time, and display the urine pressure-time curve generated by the first processor 22; when urination has not been performed for a preset period of time and / or the urine pressure value exceeds the first preset threshold, the first processor 22 controls the alarm module to send an alarm signal, and the alarm signal includes at least one of an acoustic signal alarm, an optical signal alarm and a voice signal alarm. It should be understood that the above-mentioned warning signal can distinguish between time warning (i.e., the preset time has not been exceeded without urination) and overpressure warning (i.e., the urine pressure value in the bladder exceeds the first preset threshold value); in addition, when the indwelling catheterization monitoring device is powered by a battery module, the warning module can also warn for insufficient battery power. It should be understood that when the warning module sends a warning signal, the first processor 22 controls the display module to display the corresponding warning type information. Obviously, the indwelling catheterization monitoring device can also be equipped with a storage module electrically connected to the first processor 22 (for real-time recording and storage of urine pressure values ​​monitored by the indwelling catheterization monitoring device and urine pressure-time curves generated by the first processor 22). Therefore, in medical care places where a small number of indwelling catheterization monitoring devices are used, each indwelling catheterization monitoring device can be managed separately without setting up a host computer.

[0027] Preferably, Figure 6As shown, a clamp switch 3 is provided on the urinary catheterization tube 121, and the clamp switch 3 is used to block or connect the urinary catheterization tube 121. When a first preset time has passed and / or the urine pressure value exceeds a first preset threshold value, the clamp switch 3 is turned on to urinate, and when the urine pressure value is lower than a second preset threshold value, the clamp switch 3 is turned off.

[0028] Specifically, if Figure 7 , Figure 8 As shown, the clamping switch 3 includes a box body 31 and a driving motor 32. A first sliding groove 311 and a second sliding groove 312 are provided in the box body 31. A first sliding block 33 and a second sliding block 34 are slidably installed in the first sliding groove 311 and the second sliding groove 312 respectively. A first abutting portion 331 and a second abutting portion 341 are respectively disposed on the facing end surfaces of the first slider 33 and the second slider 34, and a first pressing portion 332 and a second pressing portion 342 are also respectively disposed on the facing end surfaces of the first slider 33 and the second slider 34; One end of the first slider 33 away from the second slider 34 is connected to the box body 31 via a first compression spring 35, and one end of the second slider 34 away from the first slider 33 is connected to the box body 31 via a second compression spring 36, and the release direction of the elastic potential energy of the first compression spring 35 and the second compression spring 36 is parallel to the sliding direction of the first slider 33; When in use, the urinary catheter tube 121 is inserted between the first squeezing portion 332 and the second squeezing portion 342, and the first compression spring 35 and the second compression spring 36 enable the first squeezing portion 332 and the second squeezing portion 342 to clamp the urinary catheter tube 121 and block the flow of fluid in the urinary catheter tube 121; The output shaft of the driving motor 32 is perpendicular to the sliding direction of the first slider 33. A cam 37 is mounted on the output shaft. When the motor rotates, the circumferential surface of the cam 37 can abut against the first abutting portion 331 and the second abutting portion 341 and push the first slider 33 and the second slider 34 to slide, so that the first pressing portion 332 and the second pressing portion 342 are away from each other. The driving motor 32 is electrically connected to the first processor 22 .

[0029] Based on this, when the first preset time has passed and / or the urine pressure value exceeds the first preset threshold, the first processor 22 controls the output shaft of the drive motor 32 to rotate, so that the cam 37 abuts against the first abutment portion 331 and the second abutment portion 341, so that the first slider 33 and the second slider 34 move away from each other, and then the first squeezing portion 332 and the second squeezing portion 342 release the squeezing of the urinary catheterization tube 121, so that the urinary catheterization tube 121 is connected and the urine in the patient's bladder is discharged. Thereafter, when the urine pressure value is lower than the second preset threshold, the first processor 22 controls the output shaft of the drive motor 32 to rotate in the opposite direction, so that the cam 37 no longer abuts against the first abutment portion 331 and the second abutment portion 341, and under the action of the first compression spring 35 and the second compression spring 36, the first slider 33 and the second slider 34 approach each other, and then the first squeezing portion 332 and the second squeezing portion 342 squeeze the urinary catheterization tube 121 again, so that the urinary catheterization tube 121 is blocked, and the patient's bladder starts to store urine again. Thus, the opening and closing of the clamp switch 3 can be automatically adjusted, thereby reducing the labor intensity of medical staff.

[0030] Preferably, Figure 7 As shown, a locking buckle 38 is also provided on the box body 31 , and the locking buckle 38 is hinged to the box body 31 . The urinary catheter tube 121 can be fixed on the box body 31 by rotating the locking buckle 38 .

[0031] In another specific practice of this embodiment, the internal section also includes a flushing channel, and the external section also includes a flushing pipe; one end of the flushing channel is sealed and connected to the flushing pipe, and the other end is located inside the patient's bladder when in use. Then, normal saline can be injected into the patient's bladder from the other end of the flushing pipe for flushing. On the one hand, flushing can prevent urine crystals from being deposited on the inner wall of the bladder and the surface of the catheter due to long-term bed rest. On the other hand, in the case of insufficient urine production of the patient, simulated urine retention is injected through the flushing pipe, and discharged through the catheter pipe 121 after a period of time, thereby simulating the patient's urine storage-urination function, exercising the patient's bladder contraction, and helping the bladder of patients with insufficient urine production to maintain contraction ability.

[0032] Embodiment 2: like Figure 6As shown, this embodiment is based on the embodiment 1, and the difference is that the indwelling urinary catheterization monitoring device provided in this embodiment also includes a urine volume monitoring component, the urine volume monitoring component includes a weighing sensor 41 and a urine collection bag 42, one end of the weighing sensor 41 is fixedly arranged, and the other end is connected to the urine collection bag 42; the weighing sensor 41 is electrically connected to the first processor 22. Correspondingly, the urine volume of the patient monitored by the urine volume monitoring component is also uploaded to the host computer through the wireless communication module, and the host computer records and stores the urine volume values ​​monitored by each indwelling urinary catheterization monitoring device, the urine volume-time curve generated by the first processor 22, and generates and archives the urine volume monitoring report in real time; the display module can be used to display the urine volume value in real time, and display the urine volume-time curve generated by the first processor; when the weighing sensor 41 monitors that the urine volume value in the urine collection bag 42 exceeds the preset weight, the first processor 22 controls the warning module to send a warning signal, and the warning signal includes at least one of an acoustic signal warning, a light signal warning, and a voice signal warning. It should be understood that the above-mentioned warning signal can distinguish the overweight warning representing that the amount of urine in the urine collection bag 42 exceeds the preset weight from the aforementioned time warning and overpressure warning; when the warning module sends out the warning signal, the first processor 22 controls the display module to display the corresponding warning type information. Obviously, in a medical care setting where a small number of the indwelling urinary catheterization monitoring device is used, the indwelling urinary catheterization monitoring device is independently equipped with a storage module electrically connected to the first processor 22, and the storage module can be used to record and store the urine pressure value, urine volume value, urine pressure-time curve and urine volume-time curve monitored by the indwelling urinary catheterization monitoring device in real time; in addition, the wireless communication module can realize the communication between the urine pressure monitoring component and the urine volume monitoring component in the same indwelling urinary catheterization monitoring device.

[0033] Therefore, by setting up a urine volume monitoring component, the patient's urine output can be monitored, and the patient's renal metabolic capacity can be analyzed through the urine output and urine storage time, thereby evaluating whether the patient's renal metabolic capacity is affected by the current treatment plan. Specifically, after the urinary catheter tube 121 is connected to drain the urine in the patient's bladder, if the ratio of the single urine output to the urine storage time corresponding to the urine output is less than the preset ratio, it is determined that the current treatment plan is not conducive to the patient's renal metabolism, and the treatment plan needs to be adjusted for the patient.

[0034] In addition, when it is not necessary to monitor the patient's urine pressure, the indwelling urinary catheterization monitoring device may not have a urine pressure monitoring component. In this case, the urine volume monitoring component also includes a second processor. Accordingly, the weighing sensor 41, the drive motor 32, the wireless communication module, the display module and the warning module are all electrically connected to the second processor. Obviously, when the indwelling urinary catheterization monitoring device is equipped with a storage module alone, the storage module is electrically connected to the second processor.

[0035] More specifically, one end of the urinary catheter tube 121 away from the urinary catheter channel 111 is fixedly connected to the urine collection bag 42. That is to say, in a specific practice of this embodiment, the urinary catheter tube 121 and the urine collection bag are "integrated", thereby avoiding the infection, leakage and other problems caused by the detachment of the connection between the urinary catheter tube 121 and the urine collection bag 42, and also reducing the connection and disinfection procedures when using an indwelling urinary catheter.

[0036] However, generally speaking, the replacement cycle of an indwelling urinary catheter can be as long as 4 weeks, while the replacement cycle of the urine collection bag 42 is usually 3-7 days. For patients who use an indwelling urinary catheter for a long time, once the urine bag of the above-mentioned "integrated" indwelling urinary catheter monitoring device is replaced, the urinary catheter needs to be reinserted for the patient, which undoubtedly brings unnecessary pain and infection risks to the patient.

[0037] To this end, in another specific practice of this embodiment, Fig. 9 As shown, one end of the urinary catheterization pipe 121 away from the urinary catheterization channel 111 is detachably connected to the access pipe 421 of the urine collection bag 42; A flexible sheath 1211 is sealed and connected to the outside of the urinary catheter tube 121, and the sheath 1211 can be folded along the length direction of the urinary catheter tube 121; An elastic clamping ring 1212 is further provided on the outer wall of the opening side of the sheath 1211 , and the clamping ring 1212 can tighten the sheath 1211 to the outer wall of the access tube 421 .

[0038] Therefore, when the urinary catheter tube 121 and the urine collection bag 42 need to be connected, the cover 1211 is first turned up along the length direction of the urinary catheter tube 121 toward the body section side (such as Fig. 9 middle k The exposed inner side of the sheath 1211 and the outer side of the urinary catheter tube 121 are then disinfected, and the exposed urinary catheter tube 121 is then connected to the access tube 421 of the newly unsealed urine collection bag 42; thereafter, the sheath 1211 is turned back along the length direction of the urinary catheter tube 121 toward the side of the urine collection bag 42 (as shown in the figure). Fig. 9 middle jAs shown in the figure, the connection between the two is completed. Based on this, on the one hand, the setting of the sleeve 1211 can greatly increase the contact area between the urinary catheter tube 121 and the access tube 421, thereby increasing the static friction between the two, which can prevent loosening; on the other hand, the tie ring 1212 can tighten the sleeve 1211 on the outer wall of the access tube 421, thereby enhancing the sealing of the connection between the urinary catheter tube 121 and the access tube 421, and can avoid leakage at the connection between the two and infection caused by leakage; in addition, the eversion of the sleeve 1211 can facilitate the disinfection of the inner side of the sleeve 1211 and the part of the urinary catheter tube 121 covered by the sleeve 1211, which can greatly reduce the risk of infection caused by exposure of the tube position during the replacement of the urine collection bag 42.

[0039] Preferably, a pull ring 1213 is connected to the outside of the tie ring 1212, and the pull ring 1213 can facilitate the medical staff to fold the bag 1211. It should be understood that if Fig. 9 As shown, in this embodiment, the section on the urinary catheter tube 121 for connecting with the access tube 421 is a hard section ( Fig. 9 In j The catheter tube 121 in the figure is a section covered by the sheath 1211), whereby, after the hard section is inserted into the access tube 421, the cinch ring 1212 can tighten the sheath 1211 to the outer wall of the access tube 421; obviously, the section on the access tube 421 used for connecting with the catheter tube 121 may also be a hard section, and the hard section of the access tube 421 may be inserted into the catheter tube 121, and the cinch ring 1212 tightens the catheter tube 121 and the sheath 1211 to the outer wall of the access tube 421; the cinch ring 1212 may also be inside the sheath 1211.

[0040] In another specific practice of this embodiment, the clamping ring 1212 is not used to press the sheath 1211, but the pressing plate 1214 is used to press the sheath 1211. Specifically, Fig.10 As shown, a sliding sleeve 1217 is slidably provided at a position outside the urinary catheter tube 121 away from the access tube 421, and the pressing plate 1214 is hinged to the outside of the sliding sleeve 1217; a torsion spring (not shown in the figure) is provided on the hinge axis where the pressing plate 1214 and the sliding sleeve 1217 are hinged, and the torsion spring is in a compressed state and can enable the pressing plate 1214 to press the sleeve 1211 tightly; One end of the pressing plate 1214 is fixedly connected to the opening side of the sheath 1211, and the other end is provided with a hook portion 12141 facing the outer wall of the urinary catheter tube 121; a fourth abutment portion 1216 and a third abutment portion 1215 are sequentially provided at one end of the urinary catheter tube 121 away from the access tube 421.

[0041] Accordingly, when the urine collecting bag 42 needs to be replaced, the cover 1211 is first turned up along the length direction of the urinary catheter tube 121 toward the inner body section (such as Fig.10 middle m As shown in the figure, specifically, the medical staff presses the position of the hook portion 12141 so that the pressure plate 1214 no longer presses the cover 1211, and then slides the pressure plate 1214 toward the position of the third abutting portion 1215, flips the cover 1211, and makes the hook portion 12141 between the third abutting portion 1215 and the fourth abutting portion 1216), and then continues to push in the direction away from the access tube 421, and the hook portion 12141 abuts against the third abutting portion 1215, thereby pulling the urinary catheterization tube 121 and the access tube 421 of the current urine collection bag 42 apart; then, the exposed inner side of the cover 1211 and the part of the urinary catheterization tube 121 used to connect to the access tube 421 are subjected to the pressure. Disinfection treatment; then press the position of the hook portion 12141 so that the hook portion 12141 hooks the fourth abutting portion 1216, push the pressing plate 1214 toward the access tube 421 of the new urine collection bag 42, and then insert the urinary catheter tube 121 into the access tube 421 of the new urine collection bag 42; then slightly loosen the hook portion 12141 so that the hook portion 12141 no longer abuts against the fourth abutting portion 1216, and then press the hook portion 12141 again to push the pressing plate 1214 toward the access tube 421 until the sleeve 1211 covers the outside of the new access tube 421, and then release the hook portion 12141, and the pressing plate 1214 presses the sleeve 1211 (such as Fig.10 middle l as shown in the figure).

[0042] In the above specific practice, a sliding pressure plate 1214 is used to compress the cover 1211. Compared with the compression of the strap ring 1212, when the medical staff replaces the urine collection bag 42, they only need to operate the hook part 12141 with one hand, and operate the old access tube 421, disinfection measures and the new access tube 421 with the other hand to complete the replacement. It is easy to operate by one person and the operation is simpler.

[0043] Embodiment 3: This embodiment provides an application method of an indwelling urinary catheterization monitoring device. Based on the aforementioned indwelling urinary catheterization monitoring device, the application method includes: Determining whether the patient's autonomous urination ability has been restored by the indwelling urinary catheterization monitoring device includes: The indwelling urinary catheterization monitoring device is used on a patient, and the urinary catheterization tube 121 is blocked, and the urine pressure value of the patient is monitored in real time through the urine pressure monitoring component. When a first preset time has passed and / or the urine pressure value exceeds a first preset threshold, the urinary catheterization tube 121 is connected to drain the urine in the patient's bladder; During the process of draining urine from the patient's bladder, if the change in the urine pressure value in the bladder is greater than a preset change and / or the duration of the urine pressure value above the urine pressure value when draining urine from the patient's bladder is greater than a second preset duration, it is determined that the patient's autonomous urination ability has been restored.

[0044] Based on this, by setting a preset duration and / or a preset threshold, a reasonable urination and urine holding process can be achieved, which is equivalent to exercising the contraction-relaxation ability of the bladder, thereby being beneficial for the patient's bladder to maintain autonomous urination ability after surgery. The urine pressure value change curve during the patient's urination process (urine pressure-time curve, such as Fig.11 As shown in the figure, the change of urine pressure value in a storage-urination cycle of the patient is shown, wherein Pmax is the maximum urine pressure value during urination, Ps is the first preset threshold value, △Pa is the change of urine pressure value in the bladder during a storage-urination cycle, △Pd is the pressure difference between the maximum urine pressure value during urination and the urine pressure value before urination, △Td is the duration of urine pressure value during urination higher than the urine pressure value when the urine in the patient's bladder is started to be drained out, and the time axis of the urine storage period is shortened proportionally), which can analyze whether the patient's autonomous urination ability is restored (the indwelling catheter can be removed when the autonomous urination ability is restored), thereby providing objective measurement data basis for the timing of removing the indwelling catheter.

[0045] It should be understood that the indwelling urinary catheterization monitoring device can also be used to determine whether the treatment plan used for the patient is not conducive to the patient's renal metabolism, including: after the urine in the patient's bladder is drained, if the ratio of the single urine volume drained to the urine storage time corresponding to the urine volume is less than the preset ratio, it is determined that the current treatment plan is not conducive to the patient's renal metabolism. Based on this, the ratio can provide objective and reliable data support for medical staff in evaluating the impact of the current treatment plan on the patient's renal metabolic capacity. It is convenient to adjust the treatment plan for the patient in a timely manner when the patient's renal metabolic capacity is affected.

[0046] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An indwelling urinary catheter monitoring device, comprising a urinary catheter and a urine pressure monitoring component, characterized in that: The urinary catheter comprises an in-vivo section and an out-vivo section, the in-vivo section at least comprising a mutually independent urinary catheterization channel (111), an injection channel (112) and a pressure measuring channel (113), and the out-vivo section at least comprising a mutually independent urinary catheterization pipe (121), an injection pipe (122) and a pressure measuring pipe (123); one end of the urinary catheterization channel (111) is sealedly connected to the urinary catheterization pipe (121), and the other end is located inside the patient's bladder when in use, and the urinary catheterization channel (111) is capable of guiding urine in the patient's bladder to the urinary catheterization pipe (121); one end of the injection channel (112) is connected to a balloon (1121), and the other end of the injection channel (112) is sealedly connected to the injection pipe (122), and the injection channel (112) is capable of guiding fluid from the injection pipe (122) to the balloon (1121); the pressure measuring channel (113) is used to transmit pressure information in the patient's bladder; The urine pressure monitoring component comprises a pressure sensor (21) and a first processor (22); the pressure sensor (21) is used to detect the urine pressure value of the patient; the first processor (22) is used to process the urine pressure value and is arranged outside the urinary catheter.

2. The indwelling urinary catheterization monitoring device according to claim 1, characterized in that: The pressure sensor (21) is arranged at one end of the in-vivo section away from the pressure measuring pipe (123), and the pressure sensor (21) is electrically connected to the first processor (22) via a pressure measuring data line (23) arranged in the pressure measuring channel (113); when in use, the pressure detection port of the pressure sensor (21) is exposed to the patient's bladder.

3. The indwelling urinary catheter monitoring device according to claim 1, characterized in that: The pressure sensor (21) is arranged on an end of the external section away from the pressure measuring channel (113); a head (13) is also arranged on an end of the internal section of the catheter away from the external section; the end surface of the head (13) connected to the internal section has two protrusions extending toward the internal section; the two protrusions are respectively inserted into and block the end of the urinary catheter channel (111) and the end of the injection channel (112); the head (13) and the internal section are fixedly sealed and connected; An elastic diaphragm (1131) is sealedly connected to one end of the pressure measuring channel (113) away from the pressure measuring pipe (123), and one end of the pressure measuring pipe (123) away from the pressure measuring channel (113) is connected to the pressure detection port of the pressure sensor (21); a corresponding section of the head (13) located inside the elastic diaphragm (1131) is provided with an annular groove (132); A sealed cavity formed by the head (13), the elastic diaphragm (1131), the pressure measuring channel (113), the pressure measuring pipe (123) and the pressure detection port is filled with a fluid with a preset pressure; the pressure sensor (21) and the first processor (22) are electrically connected; when in use, one side of the elastic diaphragm (1131) is exposed to the patient's bladder.

4. The indwelling urinary catheterization monitoring device according to claim 2 or 3, characterized in that: A clamping switch (3) is provided on the urinary catheter tube (121), and the clamping switch (3) is used to block or connect the urinary catheter tube (121). When a first preset time has passed and / or the urine pressure value exceeds a first preset threshold value, the clamping switch (3) is turned on to allow urination, and when the urine pressure value is lower than a second preset threshold value, the clamping switch (3) is turned off.

5. The indwelling urinary catheterization monitoring device according to claim 4, characterized in that: The clamping switch (3) comprises a box body (31) and a driving motor (32), wherein a first sliding groove (311) and a second sliding groove (312) which are collinear are arranged in the box body (31), and a first sliding block (33) and a second sliding block (34) are slidably mounted in the first sliding groove (311) and the second sliding groove (312), respectively; A first abutting portion (331) and a second abutting portion (341) are respectively provided on the end surfaces of the first slider (33) and the second slider (34) facing each other, and a first extrusion portion (332) and a second extrusion portion (342) are also respectively provided on the end surfaces of the first slider (33) and the second slider (34) facing each other; One end of the first slider (33) away from the second slider (34) is connected to the box body (31) via a first compression spring (35), and one end of the second slider (34) away from the first slider (33) is connected to the box body (31) via a second compression spring (36), and the release direction of the elastic potential energy of the first compression spring (35) and the second compression spring (36) is parallel to the sliding direction of the first slider (33); When in use, the urinary catheter tube (121) is inserted between the first squeezing portion (332) and the second squeezing portion (342), and the first compression spring (35) and the second compression spring (36) enable the first squeezing portion (332) and the second squeezing portion (342) to clamp the urinary catheter tube (121) and block the flow of fluid in the urinary catheter tube (121); The output shaft of the driving motor (32) is perpendicular to the sliding direction of the first sliding block (33), and a cam (37) is mounted on the output shaft. When the motor rotates, the circumferential surface of the cam (37) can abut against the first abutting portion (331) and the second abutting portion (341) and push the first sliding block (33) and the second sliding block (34) to slide, so that the first pressing portion (332) and the second pressing portion (342) move away from each other. The drive motor (32) is electrically connected to the first processor (22).

6. The indwelling urinary catheterization monitoring device according to claim 1, characterized in that: The indwelling urinary catheterization monitoring device further comprises a urine volume monitoring component, the urine volume monitoring component comprising a weighing sensor (41) and a urine collection bag (42), one end of the weighing sensor (41) being fixedly arranged and the other end being connected to the urine collection bag (42); the weighing sensor (41) being electrically connected to the first processor (22).

7. The indwelling urinary catheterization monitoring device according to claim 6, characterized in that: One end of the urinary catheterization pipe (121) away from the urinary catheterization channel (111) is fixedly connected to the urine collecting bag (42).

8. The indwelling urinary catheterization monitoring device according to claim 6, characterized in that: One end of the urinary catheterization tube (121) away from the urinary catheterization channel (111) is detachably connected to the access tube (421) of the urine collection bag (42); A flexible sheath (1211) is sealed and connected to the outside of the urinary catheter tube (121), and the sheath (1211) can be folded along the length direction of the urinary catheter tube (121); An elastic restraining ring (1212) is also provided on the outer wall of the opening side of the sleeve (1211), and the restraining ring (1212) can tighten the sleeve (1211) onto the outer wall of the access tube (421).

9. The indwelling urinary catheterization monitoring device according to claim 6, characterized in that: The indwelling urinary catheterization monitoring device further comprises a wireless communication module, and a plurality of the indwelling urinary catheterization monitoring devices are connected to a host computer via the wireless communication module; The host computer can record in real time the urine pressure value and urine volume value monitored by each of the indwelling urinary catheterization monitoring devices.

10. An application method of an indwelling urinary catheterization monitoring device, based on the indwelling urinary catheterization monitoring device according to any one of claims 6 to 9, the application method comprising: Determining whether the patient's autonomous urination ability has been restored by the indwelling urinary catheterization monitoring device includes: The indwelling urinary catheterization monitoring device is applied to a patient, and the urinary catheter connecting pipe (121) is blocked, and the urine pressure value of the patient is monitored in real time through the urine pressure monitoring component; when a first preset time period has passed and / or the urine pressure value exceeds a first preset threshold value, the urinary catheter connecting pipe (121) is connected to drain urine from the patient's bladder; During the process of draining urine from the patient's bladder, if the change in the urine pressure value in the bladder is greater than a preset change and / or the duration of the urine pressure value above the urine pressure value when draining urine from the patient's bladder is greater than a second preset duration, it is determined that the patient's autonomous urination ability has been restored.

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