Intraabdominal pressure measuring ureter device and forming method thereof

Abstract

The invention discloses an intra-abdominal pressure measuring urinary catheter device and a forming method thereof. The method comprises the following steps: forming a connecting pipe which is used for connecting a urinary catheter and is provided with an on-off valve and a pressure measuring element; the digital display driving mechanism is detachably connected with the on-off valve and used for pushing the pressure measuring element to reciprocate in the axial direction of the vertical connecting pipe and displaying pressure data measured by the pressure measuring element. The intra-abdominal pressure measuring ureter device formed by the method can accurately obtain the intra-abdominal pressure of a patient, can be retained, is suitable for the patient needing to frequently detect the intra-abdominal pressure, is beneficial to infection prevention and control, is safer to use, and is beneficial to accurate judgment and subsequent treatment of a doctor.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and in particular to an intra-abdominal pressure measuring urinary catheter device and a forming method thereof. Background Art

[0002] Intra-abdominal pressure refers to the steady-state pressure in the abdominal cavity of the human body, and is one of the important physiological parameters for clinical diagnosis and treatment of diseases. Continuous increase in intra-abdominal pressure may endanger the patient's life. There are two methods for measuring intra-abdominal pressure: direct measurement (invasive) and indirect measurement (non-invasive). In 2013, the World Federation of Abdominal Compartment Syndrome issued the "Guidelines for the Diagnosis and Treatment of Intra-abdominal Hypertension and Abdominal Compartment Syndrome", which recommends that intra-bladder pressure measured by catheter be used as the preferred method for measuring intra-abdominal pressure in critically ill patients. The guidelines recommend measuring IAP once every 4-6 hours, where IAP is the abbreviation of intra-abdominal pressure. The "Best Evidence Summary of Intra-abdominal Pressure Monitoring and Management in Adult Critically Ill Patients" also recommends regular monitoring of high-risk patients or patients with abnormal measurement values ​​during screening, and it is recommended to measure IAP once every 4-6 hours. In order to control infection, the number of disconnections at the catheter connection should be reduced as much as possible. There is a contradiction between the measurement frequency and infection control, but if the catheter connection does not need to be disconnected, there will be no such contradiction. Nurses who measure intra-abdominal pressure must strictly follow the principles of aseptic operation.

[0003] In the existing method, the nurse needs to perform an intra-abdominal pressure measurement as follows: use sterile scissors to cut off the front end of the disposable sterile drainage bag and connect the broken end to a tee; use a 50ml syringe to aspirate 25ml of sterile saline and exhaust the air for later use; ask the patient to lie on his back and clamp the urinary catheter after the bladder is emptied; spread a sterile towel, separate the urine bag, and disinfect the front end of the urinary catheter; connect the urinary catheter to the pipe, open the clamp, inject saline into the bladder, and wait for 30-60s for the bladder muscle to relax; take the intersection of the iliac crest and the mid-axillary line as the zero point, place a ruler vertically next to the pressure measuring tube, separate the syringe, and connect the pressure measuring tube to the atmosphere; when the liquid level in the pressure measuring tube fluctuates slightly and no longer drops, the scale number corresponding to the concave surface of the liquid level in the pressure measuring tube at the end of the patient's exhalation is the intra-bladder pressure.

[0004] In the process of measuring intra-abdominal pressure, the aseptic operation principle should be strictly followed: strictly implement hand hygiene standards, prepare materials according to aseptic principles, lay out sterile trays, and change materials every 4 hours. When measuring bladder pressure, each connection port of the pipeline should be strictly disinfected when separating and reconnecting the pipeline, and use alcohol cotton pads to rub and disinfect for more than 15 seconds. After the pressure measurement is completed, the pressure measuring device should be removed in time. In the above operation process, it is necessary to prepare sterile materials and perform corresponding processing, prepare a sterile environment, and strictly implement aseptic operations to protect patients.

[0005] However, the above method has the following problems: the measurement value of intra-abdominal pressure should be the reading of the water column perpendicular to the ground. If the vertical angle is deviated, the reading may be inaccurate. In addition, the calibration of the reading zero point may have human errors. In addition, the liquid density is between urine and saline when reading, and the unit of the measurement result is centimeters of water column, which is only an estimate, and the result is inaccurate. The accumulation of errors caused by various reasons will affect the doctor's judgment and subsequent treatment. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problems and to provide an intra-abdominal pressure measuring catheter device and a method for forming the same, which can accurately obtain the patient's intra-abdominal pressure and can be left in place. It is suitable for patients who need to frequently test their intra-abdominal pressure, is beneficial for infection prevention and control, is safer to use, and is beneficial for doctors to make accurate judgments and subsequent treatments.

[0007] To achieve the above-mentioned object of the present invention, the present invention provides, on one hand, a method for forming an intra-abdominal pressure measuring urinary catheter device, comprising:

[0008] A connecting pipe is formed for connecting a urinary catheter and has an on-off valve and a pressure measuring element thereon;

[0009] A digital display driving mechanism is formed which is detachably connected to the on-off valve and is used to push the pressure measuring element to reciprocate along the axial direction of the vertical connecting pipe and display the pressure data measured by the pressure measuring element.

[0010] Preferably, the connecting tube for connecting the urinary catheter and having an on-off valve and a pressure measuring element thereon comprises:

[0011] forming a body for connecting a urinary catheter;

[0012] An on-off valve is formed on the body and has a central axis perpendicular to the central axis of the body, and is used to open or close the flow path in the body;

[0013] A pressure measuring element is formed in the on-off valve for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

[0014] Preferably, the body formed for connecting a urinary catheter comprises:

[0015] An anti-drop joint is formed at one end of the body to prevent the urinary catheter from slipping off when the urinary catheter is connected;

[0016] A water injection joint is formed near the anti-detachment joint of the main body, through which physiological saline can be injected into the main body as needed.

[0017] Preferably, the on-off valve formed on the body and having a central axis perpendicular to the central axis of the body for connecting or disconnecting the flow path in the body includes:

[0018] A valve seat is formed on the body, intersecting the body in a cross shape and seamlessly connected with the body;

[0019] A valve core is formed in the valve seat, the center axis of which is perpendicular to the center axis of the body and can move back and forth in the valve seat.

[0020] Preferably, a pressure measuring element formed in the on-off valve for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient includes:

[0021] A through hole extending in the radial direction is formed on the valve core of the on-off valve;

[0022] A pressure measuring element is installed at the through hole of the valve core for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

[0023] Preferably, the digital display driving mechanism detachably connected to the on-off valve and used for driving the pressure measuring element to reciprocate along the axial direction perpendicular to the body and displaying the pressure data measured by the pressure measuring element comprises:

[0024] A housing is formed with a lower connection seat detachably connected to the valve seat and an upper display screen for displaying pressure data measured by the pressure measuring element;

[0025] A driving structure is mounted on the housing, the extension direction of the output member of which is the same as the axial direction of the valve core.

[0026] Preferably, the connecting seat is threadedly connected or plugged with the valve seat.

[0027] In addition, the present invention also provides an intra-abdominal pressure measuring catheter device formed by the method as described above, comprising: a connecting tube for connecting a urinary catheter and having an on-off valve and a pressure measuring element thereon; a digital display drive mechanism detachably connected to the on-off valve and used to push the pressure measuring element to reciprocate along the axial direction perpendicular to the connecting tube and display the pressure data measured by the pressure measuring element.

[0028] Preferably, the connecting tube includes: a body for connecting a urinary catheter; an on-off valve arranged on the body and having a central axis perpendicular to the central axis of the connecting tube, and used to open or disconnect a flow path in the body; and a pressure measuring element arranged in the on-off valve and measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

[0029] Preferably, the digital display drive mechanism includes: a shell having a lower connecting seat detachably connected to the valve seat and an upper display screen for displaying pressure data measured by a pressure measuring element; and a drive structure installed on the shell and having an output member extending in the same direction as the axial direction of the valve core.

[0030] Compared with the prior art, the intra-abdominal pressure measuring urinary catheter device and the forming method thereof of the present invention have the following advantages:

[0031] 1. The intra-abdominal pressure measuring catheter device formed by the method of the present invention can accurately obtain the intra-abdominal pressure of the patient and can be left in place. It is suitable for patients who need to frequently test the intra-abdominal pressure and reduces the number of disconnections and connections with the catheter, which is beneficial to infection prevention and control. It is safer to use and is conducive to doctors' accurate judgment and subsequent treatment.

[0032] 2. The intra-abdominal pressure measuring urinary catheter device formed by the method of the present invention is provided with an on-off valve and a pressure measuring element on the connecting tube for connecting the urinary catheter. When the on-off valve disconnects the flow path in the connecting tube, the urine pressure in the connecting tube is detected by the pressure measuring element, and the pressure data measured by the pressure measuring element is displayed by the digital display driving mechanism, so that medical staff can accurately obtain the intra-abdominal pressure of the patient, which is beneficial for the doctor to accurately judge the patient's condition and implement a feasible follow-up treatment plan for the patient.

[0033] The present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the connecting tube and the digital display driving mechanism of the intra-abdominal pressure measuring urinary catheter device when they are not assembled;

[0035] Figure 2 It is a structural schematic diagram of the assembly of the connecting tube and the digital display drive mechanism of the intra-abdominal pressure measuring urinary catheter device;

[0036] Figure 3 It is a structural schematic diagram of the digital display driving mechanism of the intra-abdominal pressure measuring urinary catheter device pushing the valve core to the position where the pressure measuring element is in the disconnection position of the connecting pipe;

[0037] Figure 4 A structural schematic diagram of a connecting pipe;

[0038] Figure 5 Another structural schematic diagram of the connecting pipe;

[0039] Figure 6 This is the front view of the first structure of the valve core;

[0040] Figure 7 This is the left view of the first structure of the valve core;

[0041] Figure 8 This is the front view of the second structure of the valve core;

[0042] Fig. 9 This is a schematic diagram of the structure after the second valve core is installed in the valve seat;

[0043] Fig.10 This is the front view of the third structure of the valve core;

[0044] Fig.11 A structural schematic diagram of a valve seat;

[0045] Fig.12 It is a front view of a structure of a connecting seat;

[0046] Fig.13 A top view of a structure of a connecting seat;

[0047] Fig.14 This is a control block diagram of the intra-abdominal pressure measuring urinary catheter device of the present invention. DETAILED DESCRIPTION

[0048] The present invention provides a method for forming an intra-abdominal pressure measuring urinary catheter device, comprising:

[0049] A connecting pipe is formed for connecting a urinary catheter and has an on-off valve and a pressure measuring element thereon;

[0050] A digital display driving mechanism is formed which is detachably connected to the on-off valve and is used to push the pressure measuring element to reciprocate along the axial direction of the vertical connecting pipe and display the pressure data measured by the pressure measuring element.

[0051] Specifically, the method of the present invention comprises:

[0052] S01, forming a connecting pipe for connecting a urinary catheter and having an on-off valve and a pressure measuring element thereon;

[0053] The present invention forms a connecting pipe for connecting a urinary catheter and having an on-off valve and a pressure measuring element thereon, comprising:

[0054] forming a body for connecting a urinary catheter;

[0055] An on-off valve is formed on the body and has a central axis perpendicular to the central axis of the body, and is used to open or close the flow path in the body;

[0056] A pressure measuring element is formed in the on-off valve for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

[0057] Wherein, the body formed for connecting the urinary catheter comprises:

[0058] A tubular body 4 is formed with one end for connecting to a urinary catheter and the other end for connecting to a urine bag;

[0059] An anti-drop joint 1 is formed at one end of the body for connecting the urinary catheter, so as to prevent the urinary catheter from slipping off or falling off the body when the body is connected to the urinary catheter;

[0060] A water injection joint 2 is formed near the anti-detachment joint of the main body, which is vertically connected to the main body and communicated with the interior of the main body and can be used to inject physiological saline into the main body as needed.

[0061] The main body can be a tube with a constant diameter (such as Figure 5 As shown), a tube with a varying diameter may also be used, for example, Figure 1-Figure 4 As shown, it is formed by using tubes with different diameters, and each tube can be formed in one piece, or can be manufactured separately and then fixedly connected together.

[0062] The anti-slip joint on the main body can adopt a pagoda-shaped joint, and its outer wall is surrounded by multiple circles of ridges with diameters from small to large to prevent the pipeline from slipping. The water injection joint is used to inject physiological saline into the main body after disinfection. The anti-slip joint and the water injection joint can both adopt the structure of medical joints in the prior art. During manufacturing, the anti-slip joint, the water injection joint and the main body can be formed in an integral manner, or the water injection joint and the main body can be integrally formed, and the anti-slip joint is then formed with the main body by threaded connection or plug-in, or the anti-slip joint and the water injection joint are integrally formed, and then formed with the main body by threaded connection or plug-in, or the anti-slip joint, the water injection joint, and the main body can be formed separately and then assembled together.

[0063] After the main body is formed, an on-off valve is formed on the main body, the central axis of which is perpendicular to the central axis of the main body and is used to open or disconnect the flow path in the main body. A pressure measuring element 5 is formed in the on-off valve to measure the urine pressure in the main body when the flow path in the main body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

[0064] When forming an on-off valve on the body, a valve seat 3 which intersects the body in a cross shape and is seamlessly connected to the body needs to be formed on the body, and a valve core 6 whose central axis is perpendicular to the central axis of the body and can move back and forth in the valve seat needs to be formed in the valve seat.

[0065] The valve seat adopts a sleeve which is arranged outside the connecting pipe body and sealed at one end (such as the lower end) that crosses with the body, and the central axis is perpendicular to the central axis of the body. A valve core whose central axis coincides with the central axis of the valve seat is arranged in the valve seat through the unsealed end (such as the upper end), that is, the central axis of the valve core is also perpendicular to the central axis of the body, the height of the valve core is less than the height of the valve seat, and the outer diameter of the valve core is equivalent to the inner diameter of the valve seat, so that after the valve core is arranged in the valve seat, it can reciprocate from the unsealed end to the sealed end (such as from top to bottom) in the valve seat under the action of external force, and the reciprocating stroke is equal to or slightly larger than the inner diameter of the connecting pipe.

[0066] The valve core 6 of the present invention can be used as follows: Figure 6 , Figure 7 The first structure shown includes a columnar body 61 and a placement hole 62 opened at the lower part of the columnar body and arranged radially. The placement hole can be a through hole or a countersunk hole. The shape and size of the placement hole are equal to the shape and size of the inner hole of the connecting pipe or the size is larger than the size of the inner hole, so that the position of the placement hole can be aligned with the inner hole of the connecting pipe when the valve core moves.

[0067] In order to detect the intra-abdominal pressure of patients with urinary catheters, a pressure measuring element 5 for detecting the pressure of urine flowing in the connecting tube is placed at the placement hole of the valve core. The pressure measuring element can be a component including a pressure sensor, such as a thin film pressure sensor, whose shape and size are equivalent to the placement hole. After being placed at the placement hole of the valve core, it can be seamlessly connected to the placement hole. In this way, when the inner hole of the connecting tube is aligned with the placement hole, the passage in the connecting tube is blocked by the pressure sensor component, so that the urine in the connecting tube directly acts on the pressure sensor component, and the intra-abdominal pressure of the patient is obtained by the detected urine pressure. The pressure sensor component adopts a pressure sensor component with its own power supply in the prior art and can communicate with the outside in a wireless manner.

[0068] In order to prevent the urine flowing in the connecting tube from overflowing from the gap between the valve core and the valve seat after the valve core moves up and returns to its original position in the valve seat to put the connecting tube in the conducting state, an elastic plug made of elastic material, such as a rubber plug, which is interference-fitted with the inner hole of the valve seat can be fixed at the bottom of the columnar body during design. The elastic plug is fixed to the bottom of the columnar body by gluing or other means, and the diameter can be equal to the diameter of the columnar body, or slightly larger than the diameter of the columnar body, and has an interference fit with the inner hole of the valve seat. Alternatively, the valve core is made of elastic material as a whole, such as a rubber valve core.

[0069] Furthermore, in order to reduce the impact on the columnar body when an external force is applied to the columnar body of the valve core, a vibration damping pad 63 can be set at the top of the columnar body. The vibration damping pad can be made of rubber and fixed to the top of the columnar body by gluing or other means. The diameter can be equal to the diameter of the columnar body or slightly larger than the diameter of the columnar body, and has a gap or interference fit with the inner hole of the valve seat.

[0070] Alternatively, the valve core of the present invention may also adopt a second structure, which includes the columnar body of the first structure, but does not have a placement hole in the lower part of the columnar body, and the pressure measuring element is directly fixed to the outer wall of the columnar body at a position corresponding to the position of the placement hole by gluing or other means. In this way, when the valve core moves downward in the valve seat to align the pressure measuring element with the inner hole of the connecting pipe, the urinary tract in the connecting pipe can be directly blocked, and urine can directly act on the pressure measuring element.

[0071] Alternatively, the valve core of the present invention can also be used as follows Figure 8 The third structure shown in FIG. 1 is based on the first structure, and a spring 11 is arranged at the bottom of the valve core. After the valve core is placed in the valve seat, as shown in FIG. Fig. 9 As shown in the figure, the bottom of the spring is against the inner wall of the valve seat, and the upper part of the spring is against the bottom of the valve core. When the spring is in the initial state, the valve core is in the original position, that is, the bottom of the valve core can be flush with the upper end of the inner hole of the connecting pipe (refer to Figure 2 , Fig. 9), at this time, the urine flowing in the connecting tube can flow freely through the spring; and when the valve core is moved downward by external force to block the flow path of the connecting tube, the spring will be in a compressed state. When the external force acting on the valve core is removed, the valve core will move up under the action of the spring restoring force until it returns to its original position.

[0072] Alternatively, the valve core of the present invention can also be used as follows Fig.10 The fourth structure shown in the figure increases the height of the columnar body on the basis of the first structure, and a through hole 64 is provided at the bottom of the columnar body which penetrates the columnar body in the radial direction. When the valve core is in the initial state without external force, the through hole can be aligned with the inner hole of the connecting pipe, so that the flow path in the connecting pipe is in a conducting state; and when the valve core moves down under the action of external force until the pressure measuring element placed on it is aligned with the inner hole of the connecting pipe, the valve core at the position corresponding to the through hole will also move down in the valve seat. Accordingly, the height of the valve seat adapted to this structure also needs to be increased accordingly. Of course, a spring which can automatically return the valve core to its original position can also be provided at the bottom of the valve core of this structure.

[0073] In addition, the valve core of the present invention may also adopt the structure of a valve core used to block or conduct the inner pipeline of a urinary catheter in the prior art, such as the structure of a valve core of a cross valve used in traditional Chinese medicine in the prior art.

[0074] S02, forming a digital display driving mechanism detachably connected to the on-off valve for driving the pressure measuring element to reciprocate along the axial direction of the vertical connecting pipe and displaying the pressure data measured by the pressure measuring element.

[0075] In order to enable the valve core on the connecting pipe to move relative to the valve seat, so as to detect the pressure of the flow path in the connecting pipe through the pressure measuring element, and display the pressure data detected by the pressure measuring element, so that medical staff can obtain the intra-abdominal pressure of the patient, the present invention also forms a digital display drive mechanism detachably connected to the on-off valve, including:

[0076] A housing is formed in which a lower connection seat is detachably connected to a valve seat and an upper display screen is used to display pressure data measured by a pressure measuring element;

[0077] A driving structure is mounted on the housing, the extension direction of the output member of which coincides with the axial direction of the valve core.

[0078] Specifically, the housing that forms the lower connection seat and the valve seat detachably connected and the upper display screen for displaying the pressure data measured by the pressure measuring element includes:

[0079] Formed as Figure 1-Figure 3 The cylindrical connection seat 7 shown in the figure can be connected to the valve seat in a detachable manner when the flow path in the connecting pipe needs to be blocked by an automatic blocking method. The connection can be made by plugging or screwing. During manufacturing, an internal thread can be set on the inner wall of the connection seat, or a threaded connection can be set on the inner wall of the connection seat. Fig.12 , Fig.13The slot 72 shown in the figure extends in parallel to the axial direction of the connection seat, and the bottom of the slot is provided with a circumferential groove 71 which is connected with the slot and extends in the circumferential direction of the connection seat, so that the connection seat and the valve seat can be rotated relative to the valve seat by a certain angle after being plugged in the vertical direction to prevent the connection seat and the valve seat from loosening. Correspondingly, when manufacturing the valve seat, a structure for detachable connection with the connection seat is formed on the outer wall of the upper part of the valve seat (i.e., the part corresponding to the opening end), such as providing an external thread on the outer wall of the valve seat that matches the internal thread of the connection seat; or providing a convex ridge 31 (such as a protruding ridge 31 extending in the axial direction) on the outer wall of the valve seat. Fig.11 As shown in FIG. 1 , a locking tongue 32 is provided at the bottom of the convex ridge, which is vertically connected to the convex ridge and extends along the circumference of the valve seat and is used to be inserted into the circumferential groove of the connecting seat. The locking tongue can be made of elastic material or non-elastic material. In addition, a structure in the prior art that can detachably connect the two together and will not loosen in the axial direction after connection can also be adopted.

[0080] A hollow rectangular display seat 8 is formed which is seamlessly connected to the top of the connection seat. The display seat can be integrally formed with the connection seat, or can be formed in two parts and then assembled together. No matter which method is adopted, the inner cavity of the display seat must be connected to the inner cavity of the connection seat. A display screen is installed on the display seat to display the pressure data measured by the pressure measuring element or the intra-abdominal pressure of the patient.

[0081] When forming the display seat, a driving structure 9 is also installed on the display seat, the extension direction of the output member 10 of which can coincide with the axial direction of the valve core to drive the valve core to move. During design, the driving structure can adopt an electric structure, such as a linear motor driving structure, and its output shaft can be extended and retracted along the axial direction of the valve core. Alternatively, the driving structure can also adopt a pneumatic cylinder or a hydraulic cylinder, and the piston of the pneumatic cylinder or the hydraulic cylinder can be extended and retracted along the center axis of the valve core.

[0082] When the display base is formed, a power module for providing electric energy and a control module electrically connected to the power module are also installed in the display base, wherein the display screen and the driving structure are electrically connected to the power module respectively.

[0083] The control module is used to control the overall working process, and can use chips with analysis, processing and control functions such as MCU and CPU in the prior art. The control module is wirelessly connected to the pressure measuring element, can receive the pressure detection data transmitted by the pressure measuring element, analyze and process the data and display it on the display screen for medical staff to view.

[0084] The control module is connected to the display screen and is electrically connected to the drive structure. The user can input instructions for carrying the pressure measuring element to periodically measure the intra-abdominal pressure and instructions for the drive structure to act for a predetermined time in each cycle through the display screen. It is also possible to input instructions for carrying the pressure measuring element to measure the intra-abdominal pressure once and instructions for the drive structure to act for a predetermined time during a single measurement through the display screen. Among them, the input instruction for periodic intra-abdominal pressure measurement is the time required for intra-abdominal pressure measurement at a certain number of times within a certain period of time, such as 12 times within 12 hours, then the measurement is performed once every 1 hour, if the intra-abdominal pressure is measured 6 times within 12 hours, then the measurement is performed once every 2 hours, and so on; the input instruction for the driving structure to act according to the predetermined duration in each cycle is the duration of the driving structure performing the corresponding action in each cycle, which duration includes the total duration of the output member extending into position and retracting into position, such as, when an electric driving structure is used, the total time from the first start of the driving structure to move the output member to the preset position, the first stop after reaching the preset position, the second start after the first stop for a preset time to retract the output member to the original position and then the second stop, which can be 1 minute or 2 minutes, etc., wherein the start and stop time of each driving structure can be determined in advance through experiments according to experimental requirements. When applied, the display screen can be a touch display screen or a non-touch display screen, preferably a touch display screen.

[0085] The control module controls the driving structure to act periodically according to the instruction of periodic intra-abdominal pressure measurement of the pressure measuring element inputted from the display screen, so as to periodically block the flow path in the connecting tube, and obtain the intra-abdominal pressure in each cycle by measuring the flow path pressure in the process of blocking the flow path in the connecting tube. Among them, the control module controls the driving structure to start, drive the valve core and the pressure measuring element through the output part until the flow path of the connecting tube is completely blocked, maintain the current position of the output part so that the pressure measuring element measures the flow path pressure in the connecting tube according to the preset time, and stops in each cycle of the driving structure to perform corresponding actions.

[0086] Alternatively, the control module controls the driving structure to act once, blocks the flow path in the connecting tube, and obtains the intra-abdominal pressure measured this time by measuring the flow path pressure during the blocking process, according to the instruction of carrying the pressure measuring element for single intra-abdominal pressure measurement inputted from the display screen and the instruction of the driving structure to act for a predetermined time during the single measurement. The action process of the driving structure controlled by the control module is the same as the action process of the driving structure in each cycle mentioned above.

[0087] When the control module controls the action of the driving structure, the output member of the driving structure is extended and returned according to the preset requirements, so that the valve core in contact with the output member moves downward and returns, so as to block or conduct the flow path in the connecting pipe according to the preset time, so as to achieve the purpose of detecting the flow path pressure through the pressure measuring element when the flow path of the connecting pipe is blocked to obtain the patient's intra-abdominal pressure. When designed, the output member of the driving structure extends downward from the inner cavity of the display seat to the inner cavity of the connecting seat, and moves along the inner cavity of the connecting seat, and can abut against the upper surface of the valve core, so that the valve core moves up and down.

[0088] Furthermore, when the display base is formed, an alarm module electrically connected to the power module and the control module can be installed on the display base. After the control module receives the pressure data transmitted by the pressure measuring element, it compares the pressure data with the preset high value and preset low value of the pressure pre-stored therein. If the intra-abdominal pressure detected by the pressure measuring element exceeds the preset high value or is lower than the preset low value, the control module controls the alarm module to emit an alarm sound prompt. The alarm module can adopt the sound or sound and light alarm module of the prior art.

[0089] In addition, when the display base is formed, a data output interface such as a USB interface electrically connected to the control module can be provided on the display base to export data through a USB data cable, etc., so as to facilitate the issuance of reports. In addition, the control module can also output data in real time by wireless transmission, such as transmitting it to a nurse station, so that medical staff can receive or view it at any time.

[0090] In addition to providing the above-mentioned method for forming an intra-abdominal pressure measuring urinary catheter device, the present invention also provides an intra-abdominal pressure measuring urinary catheter device formed by the above-mentioned method, which includes: a connecting tube 4 for connecting a urinary catheter (not shown in the figure) and having an on-off valve and a pressure measuring element 5 thereon; a digital display drive mechanism detachably connected to the on-off valve and used to push the pressure measuring element to reciprocate along the axial direction perpendicular to the connecting tube and display the pressure data measured by the pressure measuring element.

[0091] Specifically, the connecting tube includes: a main body for connecting a urinary catheter; an on-off valve arranged on the main body and having a central axis perpendicular to the central axis of the connecting tube, and used to open or disconnect a flow path in the main body; and a pressure measuring element arranged in the on-off valve, which measures the urine pressure in the main body when the flow path in the main body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

[0092] The body 4 is tubular, one end of which is used to connect to the catheter and the other end is used to connect to the urine bag. An anti-drop joint 1 is provided at the end of the body used to connect to the catheter to prevent the catheter from slipping off or falling off the body when the body is connected to the catheter. A water injection joint 2 is provided near the anti-drop joint and is vertically connected to the body and communicated with the inside of the body. The water injection joint 2 can be used to inject physiological saline into the body as needed.

[0093] The main body can be a tube with a constant diameter (such as Figure 5 As shown), a tube with a varying diameter may also be used, for example, Figure 1-Figure 4 As shown, it is formed by using tubes with different diameters, and each tube can be formed in one piece, or can be manufactured separately and then fixedly connected together.

[0094] The anti-slip joint on the main body can adopt a pagoda-shaped joint, and its outer wall is surrounded by multiple circles of ridges with diameters from small to large to prevent the pipeline from slipping. The water injection joint is used to inject physiological saline into the main body after disinfection. The anti-slip joint and the water injection joint can both adopt the structure of medical joints in the prior art. During manufacturing, the anti-slip joint, the water injection joint and the main body can be formed in an integral manner, or the water injection joint and the main body can be integrally formed, and the anti-slip joint is then formed with the main body by threaded connection or plug-in, or the anti-slip joint and the water injection joint are integrally formed, and then formed with the main body by threaded connection or plug-in, or the anti-slip joint, the water injection joint, and the main body can be formed separately and then assembled together.

[0095] The on-off valve comprises a valve seat 3 which intersects with the body in a cross shape and is seamlessly connected to the body, and a valve core 6 which is arranged in the valve seat and has a central axis which is perpendicular to the central axis of the body and can move back and forth in the valve seat.

[0096] The valve seat adopts a sleeve which is arranged outside the connecting pipe body and sealed at one end (such as the lower end sealed) which crosses with the body, and the central axis is perpendicular to the central axis of the body. A valve core 6 whose central axis coincides with the central axis of the valve seat is arranged in the valve seat through the unsealed end (such as the upper end), that is, the central axis of the valve core is also perpendicular to the central axis of the body, the height of the valve core is less than the height of the valve seat, and the outer diameter of the valve core is equivalent to the inner diameter of the valve seat, so that after the valve core is arranged in the valve seat, it can reciprocate from the unsealed end to the sealed end (such as from top to bottom) in the valve seat under the action of external force, and the reciprocating stroke is equal to or slightly larger than the inner diameter of the connecting pipe.

[0097] The valve core 6 of the present invention can be used as follows Figure 6 , Figure 7 The first structure shown includes a columnar body 61 and a placement hole 62 opened at the lower part of the columnar body and arranged radially. The placement hole can be a through hole or a countersunk hole. The shape and size of the placement hole are equal to the shape and size of the inner hole of the connecting pipe or the size is larger than the size of the inner hole, so that the position of the placement hole can be aligned with the inner hole of the connecting pipe when the valve core moves.

[0098] In order to detect the intra-abdominal pressure of patients with urinary catheters, a pressure measuring element 5 for detecting the pressure of urine flowing in the connecting tube is placed at the placement hole of the valve core. The pressure measuring element can be a component including a pressure sensor, such as a thin film pressure sensor, whose shape and size are equivalent to the placement hole. After being placed at the placement hole of the valve core, it can be seamlessly connected to the placement hole. In this way, when the inner hole of the connecting tube is aligned with the placement hole, the passage in the connecting tube is blocked by the pressure sensor component, so that the urine in the connecting tube directly acts on the pressure sensor component, and the patient's intra-abdominal pressure is obtained by the detected urine pressure. The pressure sensor component adopts a pressure sensor component with its own power supply in the prior art and can communicate with the outside in a wireless manner, which can transmit the detected pressure information to the corresponding device or remote user. When used, it is assumed that the pressure of urine in the connecting tube is the same in all directions along the flow direction. The pressure (Pascal) measured on the force-bearing area of ​​the pressure sensor is used to obtain the pressure received by the pressure sensor = the urine pressure in the connecting tube × the intra-abdominal pressure. After unit conversion of 1 Pascal (Pa) = 0.0102 centimeters of water column (cmH2O), the patient's intra-abdominal pressure can be obtained.

[0099] In order to prevent the urine flowing in the connecting tube from overflowing from the gap between the valve core and the valve seat after the valve core moves up and returns to its original position in the valve seat to put the connecting tube in the conducting state, an elastic plug made of elastic material, such as a rubber plug, which is interference-fitted with the inner hole of the valve seat can be fixed at the bottom of the columnar body during design. The elastic plug is fixed to the bottom of the columnar body by gluing or other means, and the diameter can be equal to the diameter of the columnar body, or slightly larger than the diameter of the columnar body, and has an interference fit with the inner hole of the valve seat. Alternatively, the valve core is made of elastic material as a whole, such as a rubber valve core.

[0100] Furthermore, in order to reduce the impact on the columnar body when an external force is applied to the columnar body of the valve core, a vibration damping pad 63 can be set at the top of the columnar body. The vibration damping pad can be made of rubber and fixed to the top of the columnar body by gluing or other means. The diameter can be equal to the diameter of the columnar body or slightly larger than the diameter of the columnar body, and has a gap or interference fit with the inner hole of the valve seat.

[0101] Alternatively, the valve core of the present invention may also adopt a second structure, which includes the columnar body of the first structure, but does not have a placement hole in the lower part of the columnar body, and the pressure measuring element is directly fixed to the outer wall of the columnar body at a position corresponding to the position of the placement hole by gluing or other means. In this way, when the valve core moves downward in the valve seat to align the pressure measuring element with the inner hole of the connecting pipe, the urinary tract in the connecting pipe can be directly blocked, and urine can directly act on the pressure measuring element.

[0102] Alternatively, the valve core of the present invention can also be used as follows Figure 8 The third structure shown in FIG. 1 is based on the first structure, and a spring 11 is arranged at the bottom of the valve core. After the valve core is placed in the valve seat, as shown in FIG. Fig. 9As shown in the figure, the bottom of the spring is against the inner wall of the valve seat, and the upper part of the spring is against the bottom of the valve core. When the spring is in the initial state, the valve core is in the original position, that is, the bottom of the valve core can be flush with the upper end of the inner hole of the connecting pipe (refer to Figure 2 , Fig. 9 ), at this time, the urine flowing in the connecting tube can flow freely through the spring; and when the valve core is moved downward by external force to block the flow path of the connecting tube, the spring will be in a compressed state. When the external force acting on the valve core is removed, the valve core will move up under the action of the spring restoring force until it returns to its original position.

[0103] Alternatively, the valve core of the present invention can also be used as follows Fig.10 The fourth structure shown in the figure increases the height of the columnar body on the basis of the first structure, and a through hole 64 is provided at the bottom of the columnar body which penetrates the columnar body in the radial direction. When the valve core is in the initial state without external force, the through hole can be aligned with the inner hole of the connecting pipe, so that the flow path in the connecting pipe is in a conducting state; and when the valve core moves down under the action of external force until the pressure measuring element placed on it is aligned with the inner hole of the connecting pipe, the valve core at the position corresponding to the through hole will also move down in the valve seat. Accordingly, the height of the valve seat adapted to this structure also needs to be increased accordingly. Of course, a spring which can automatically return the valve core to its original position can also be provided at the bottom of the valve core of this structure.

[0104] In addition, the valve core of the present invention may also adopt the structure of a valve core used to block or conduct the inner pipeline of a urinary catheter in the prior art, such as the structure of a valve core of a cross valve used in traditional Chinese medicine in the prior art.

[0105] The digital display drive mechanism of the present invention comprises: a housing with a lower connection seat detachably connected to a valve seat and an upper display screen for displaying pressure data measured by a pressure measuring element; and a drive structure installed on the housing and having an output member extending in a direction that coincides with the axial direction of the valve core. The digital display drive mechanism detachably connected to the on-off valve can move the valve core on the connecting pipe relative to the valve seat, detect the pressure of the flow path in the connecting pipe through the pressure measuring element, and display the pressure data detected by the pressure measuring element, so that medical staff can obtain the intra-abdominal pressure of the patient.

[0106] The housing of the present invention includes a connecting seat 7 and a hollow rectangular display seat 8 seamlessly connected to the top of the connecting seat. Figure 1-Figure 3 As shown, the connection seat is a cylindrical connection seat. When the flow path in the connecting pipe needs to be blocked by an automatic blocking method, the connection seat can be connected to the valve seat by a detachable connection. The connection can be made by plugging or screwing. During manufacturing, an internal thread can be set on the inner wall of the connection seat, or a threaded connection can be set on the inner wall of the connection seat. Fig.12 , Fig.13The slot 72 shown extends axially parallel to the connecting seat, and the bottom of the slot is provided with a circumferential groove 71 connected thereto and extending circumferentially along the connecting seat, so that the connecting seat and the valve seat can be rotated relative to the valve seat by a certain angle after being plugged in the vertical direction to prevent the connecting seat and the valve seat from loosening.

[0107] Correspondingly, when manufacturing the valve seat, a structure for detachably connecting with the connecting seat is formed on the outer wall of the upper part of the valve seat (i.e., the part corresponding to the opening end), such as providing an external thread on the outer wall of the valve seat that matches the internal thread of the connecting seat; or providing a convex ridge 31 extending in the axial direction on the outer wall of the valve seat, and providing a locking tongue 32 at the bottom of the convex ridge that is vertically connected to the convex ridge and extends in the circumferential direction of the valve seat and is used to be inserted into the circumferential groove of the connecting seat, and the locking tongue can be made of elastic material or non-elastic material. In addition, a structure in the prior art that can detachably connect the two together and will not loosen in the axial direction after connection can also be used.

[0108] During design, the height of the upper portion of the valve seat is adapted to the height of the connecting seat, so that after the two are connected, the lower surface of the connecting seat can be against the upper surface of the connecting pipe, and the connecting seat is supported by the connecting pipe and the valve seat to maintain stability. The length of the output member of the drive mechanism is equivalent to the distance between the upper end of the pressure measuring element and the inner hole of the connecting pipe, so that after the valve seat and the connecting seat are connected, the lower end of the output member just abuts against the top of the valve core (such as Figure 2 When the output member is extended, it moves downward against the valve core. When the output member is extended to the right position, the valve core moves downward to enable the pressure measuring element to reach a position that can completely block the flow path in the connecting pipe (such as Figure 3 Of course, when designing, after the connecting seat and the valve seat are connected in place, the output member of the driving structure may not contact the upper surface of the valve core, and the telescopic stroke of the output member can be pre-set by the displacement required when the valve core moves to completely block the flow path in the connecting pipe.

[0109] The display seat of the present invention can be integrally formed with the connecting seat, or can be formed separately and then assembled together. No matter which method is adopted, the inner cavity of the display seat must be connected with the inner cavity of the connecting seat. A display screen is installed on the display seat to display the pressure data measured by the pressure measuring element or the intra-abdominal pressure of the patient.

[0110] The present invention installs a driving structure 9 on the display seat, the extension direction of which output member 10 can coincide with the axial direction of the valve core to drive the valve core to move. During design, the driving structure can adopt an electric structure, such as a linear motor driving structure in the prior art, and its output shaft can be extended and retracted along the axial direction of the valve core. Alternatively, the driving structure can also adopt a pneumatic cylinder or a hydraulic cylinder, and the piston of the pneumatic cylinder or the hydraulic cylinder can be extended and retracted along the direction of the center axis of the valve core. The fixing parts in the driving structure, such as a motor or a cylinder body, can be fixed to the display seat by bolts, welding, or bonding, and its structure is not described in detail here.

[0111] In addition to the above components, the digital display drive mechanism of the present invention also includes a power module installed in the display base for providing electric energy and a control module (such as Fig.14 Wherein, the display screen and the driving structure are electrically connected to the power module respectively.

[0112] The control module is used to control the overall working process, and can use chips such as MCU and CPU in the prior art that have analysis, processing, communication and control functions. The control module is wirelessly connected to the pressure measuring element, can receive the pressure detection data transmitted by the pressure measuring element, analyze and process the data and display it on the display screen for medical staff to view, and can also output the processed data by wired or wireless means.

[0113] The control module is connected to the display screen and is electrically connected to the drive structure. The user can input instructions for carrying the pressure measuring element to periodically measure the intra-abdominal pressure and instructions for the drive structure to act for a predetermined time in each cycle through the display screen, and can also input instructions for carrying the pressure measuring element to measure the intra-abdominal pressure once and instructions for the drive structure to act for a predetermined time during a single measurement through the display screen. Among them, the input instruction for periodic intra-abdominal pressure measurement is the time required for intra-abdominal pressure measurement at a certain number of times within a certain period of time, such as 12 times within 12 hours, then the measurement is performed once every 1 hour, if the intra-abdominal pressure is measured 6 times within 12 hours, then the measurement is performed once every 2 hours, and so on; the input instruction for the driving structure to act according to the predetermined duration in each cycle is the duration of the driving structure performing the corresponding action in each cycle, which duration includes the total duration of the output member extending into position and retracting into position, such as, when an electric driving structure is used, the total time from the first start of the driving structure to move the output member to the preset position, the first stop after reaching the preset position, the second start after the first stop for a preset time to retract the output member to the original position and then the second stop, which can be 1 minute or 2 minutes, etc., wherein the start and stop time of each driving structure can be determined in advance through experiments according to experimental requirements. When applied, the display screen can be a touch display screen or a non-touch display screen, preferably a touch display screen.

[0114] The control module controls the drive structure to act periodically according to the instruction of periodic intra-abdominal pressure measurement of the pressure measuring element inputted from the display screen, so as to periodically block the flow path in the connecting tube, and obtain the intra-abdominal pressure in each cycle by measuring the flow path pressure in the process of blocking the flow path in the connecting tube. Among them, the control module controls the drive structure to start in each cycle of controlling the drive structure, drives the valve core and the pressure measuring element through the output part until the flow path of the connecting tube is completely blocked, stops the drive structure to make the output part maintain the current position so that the pressure measuring element measures the flow path pressure in the connecting tube according to the preset time, starts the drive structure again to make the output part return to its position (valve core returns to its position), and stops the drive structure to perform corresponding actions.

[0115] Alternatively, the control module controls the driving structure to act once, blocks the flow path in the connecting tube, and obtains the intra-abdominal pressure measured this time by measuring the flow path pressure during the blocking process, according to the instruction of carrying the pressure measuring element for single intra-abdominal pressure measurement inputted from the display screen and the instruction of the driving structure to act for a predetermined time during the single measurement. The action process of the driving structure controlled by the control module is the same as the action process of the driving structure in each cycle mentioned above.

[0116] When the control module controls the action of the driving structure, the output member of the driving structure is extended and returned according to the preset requirements, so that the valve core in contact with the output member moves downward and returns, so as to block or conduct the flow path in the connecting pipe according to the preset time, so as to achieve the purpose of detecting the flow path pressure through the pressure measuring element when the flow path of the connecting pipe is blocked to obtain the patient's intra-abdominal pressure. When designed, the output member of the driving structure extends downward from the inner cavity of the display seat to the inner cavity of the connecting seat, and moves along the inner cavity of the connecting seat, and can abut against the upper surface of the valve core, so that the valve core moves up and down.

[0117] Furthermore, the present invention may also include an alarm module, which is installed on the display base and is electrically connected to the power module and the control module. After the control module receives the pressure data transmitted by the pressure measuring element, it compares the pressure data with the preset high value and preset low value of the pressure pre-stored therein. If the intra-abdominal pressure detected by the pressure measuring element exceeds the preset high value or is lower than the preset low value, the control module controls the alarm module to emit an alarm sound prompt. The alarm module can adopt the sound or sound and light alarm module of the prior art.

[0118] In addition, the present invention can also set a data output interface electrically connected to the control module on the display base, such as a USB interface, so as to export data through a USB data cable, etc., to facilitate the issuance of reports. In addition, the control module can also output data in real time by wireless transmission, such as transmitting it to a nurse station, so that medical staff can receive or view it at any time.

[0119] It should be noted that the connecting pipe, valve seat, valve core, etc. of the present invention can be made of transparent materials so that the flow path in the connecting pipe and the position of the valve core and pressure measuring element can be directly checked.

[0120] The working process of the intra-abdominal pressure measuring urinary catheter device of the present invention is described below:

[0121] Before measuring the intra-abdominal pressure, the operator (medical staff or patient or family member) installs the connection seat of the display drive mechanism on the valve seat, so that the output member of the drive structure is in an unactivated initial state. The urinary catheter is put on the anti-detachment joint of the connecting tube, and the drainage bag is connected to the other end of the connecting tube (the connection method adopts the existing drainage bag connection method), and the flow path in the connecting tube is in a conducting state, that is, the patient's urine is drained through the connecting tube.

[0122] The operator determines whether to measure the intra-abdominal pressure manually or automatically based on the actual situation.

[0123] When it is determined that the intra-abdominal pressure needs to be measured manually, the instruction for a single intra-abdominal pressure measurement with a pressure measuring element and the predetermined total duration of the two starts and stops of the driving structure during a single measurement, such as 1.5 minutes, are input through the display screen to make the driving structure work, and the output member will extend downward to push the valve core downward until the valve core and the pressure measuring element completely block the urine flow path in the connecting tube. The operator disinfects the water injection joint and injects about 25 ml of saline with a syringe, and observes the changes in the pressure value detected by the pressure measuring element on the display screen. After waiting for a period of time, such as 1 minute, the pressure value is stable, and the measured value displayed on the display screen is observed again. This value can be considered as the intra-abdominal pressure value of the patient. The detected intra-abdominal pressure value can be transmitted to the monitoring instrument at the nurse station, and a nursing record is automatically generated, etc. After the driving structure stops according to the predetermined duration, the valve core returns to its original position, the flow path in the connecting tube is in a conducting state again, and the entire urinary tract is unobstructed. After the measurement is completed, the connecting seat of the display driving mechanism can be removed from the valve seat.

[0124] When it is determined that an automatic method of measuring intra-abdominal pressure is required, the instruction to carry out periodic intra-abdominal pressure measurement with the pressure measuring element and the instruction to drive the structure to act for a predetermined time in each cycle are input through the display screen. For example, the periodic detection time is once every hour, the time span is 12 hours, and the predetermined total duration of the drive structure action in each cycle is 1.5 minutes. The drive structure will execute the first intra-abdominal pressure measurement instruction, so that the pressure measuring element performs the above-mentioned single measurement, and displays the measurement result through the display screen or sends the measurement result to the remote user. At the same time, the flow path in the connecting tube will be in a conducting state. After the preset time is reached (i.e. 1 hour), the drive structure will execute the second intra-abdominal pressure measurement instruction, so that the pressure measuring element performs intra-abdominal pressure detection again, and so on, until the instruction is executed. In addition to being displayed in real time on the display screen, all pressure data during the detection process can also be transmitted to the monitoring instrument of the nurse station to automatically generate nursing records for the entire cycle, etc. In addition, when used in a hospital, an alarm wirelessly connected to the control module can be set up at the nurse station. If the pressure data exceeds the high pressure alarm threshold or is lower than the low pressure alarm threshold, the nurse station alarm will alarm to indicate abnormal pressure, and the nurse can perform manual measurement again.

[0125] In summary, the intra-abdominal pressure measuring urinary catheter device formed by the method of the present invention is provided with an on-off valve and a pressure measuring element on the connecting tube for connecting the urinary catheter. When the on-off valve disconnects the flow path in the connecting tube, the urine pressure in the connecting tube is detected by the pressure measuring element, and the pressure data measured by the pressure measuring element is displayed by the digital display drive mechanism, so that medical staff can accurately obtain the intra-abdominal pressure of the patient, which is beneficial for doctors to accurately judge the patient's condition and implement feasible follow-up treatment plans for the patient. In addition, the device can be left in place and can be used for patients who need to frequently detect intra-abdominal pressure, reducing the number of disconnections and connections with the urinary catheter, which is beneficial for infection prevention and control and safer to use.

[0126] Although the present invention has been described in detail above, the present invention is not limited thereto. Those skilled in the art may make modifications based on the principles of the present invention. Therefore, all modifications made based on the principles of the present invention should be understood to fall within the protection scope of the present invention.

Claims

1. A method for forming an intra-abdominal pressure measuring urinary catheter device, comprising: A connecting pipe is formed for connecting a urinary catheter and has an on-off valve and a pressure measuring element thereon; A digital display driving mechanism is formed which is detachably connected to the on-off valve and is used to push the pressure measuring element to move back and forth along the axial direction of the vertical connecting pipe and to display the pressure data measured by the pressure measuring element.

2. The method according to claim 1, forming a connecting tube for connecting a urinary catheter and having an on-off valve and a pressure measuring element thereon comprises: forming a body for connecting a urinary catheter; An on-off valve is formed on the body and has a central axis perpendicular to the central axis of the body, and is used to open or close the flow path in the body; A pressure measuring element is formed in the on-off valve for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

3. The method according to claim 2, forming a body for connecting a urinary catheter comprises: An anti-drop joint is formed at one end of the body to prevent the urinary catheter from slipping off when the urinary catheter is connected; A water injection joint is formed on the main body near the anti-detachment joint, which can be used to inject physiological saline into the main body as needed.

4. According to the method of claim 2 or 3, forming an on-off valve on the body with a central axis perpendicular to the central axis of the body for connecting or disconnecting the flow path in the body comprises: A valve seat is formed on the body, intersecting the body in a cross shape and seamlessly connected with the body; A valve core is formed in the valve seat, the center axis of which is perpendicular to the center axis of the body and can move back and forth in the valve seat.

5. The method according to claim 4, wherein forming a pressure measuring element in the on-off valve for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient comprises: A through hole extending in the radial direction is formed on the valve core of the on-off valve; A pressure measuring element is installed at the through hole of the valve core for measuring the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

6. According to the method of claim 4, the digital display driving mechanism detachably connected to the on-off valve for driving the pressure measuring element to reciprocate along the axial direction perpendicular to the body and displaying the pressure data measured by the pressure measuring element comprises: A housing is formed with a lower connection seat detachably connected to the valve seat and an upper display screen for displaying pressure data measured by the pressure measuring element; A driving structure is mounted on the housing, the extension direction of the output member of which is the same as the axial direction of the valve core.

7. According to the method of claim 6, the connecting seat is threadedly connected or plugged with the valve seat.

8. A urinary catheter device for measuring intra-abdominal pressure formed by the method according to any one of claims 1 to 7, comprising: A connecting tube used for connecting a urinary catheter and having an on-off valve and a pressure measuring element thereon; A digital display driving mechanism is detachably connected to the on-off valve and is used to push the pressure measuring element to reciprocate along the axial direction of the vertical connecting pipe and display the pressure data measured by the pressure measuring element.

9. The intra-abdominal pressure measuring urinary catheter device according to claim 8, wherein the connecting tube comprises: A body for connecting a urinary catheter; An on-off valve disposed on the body and having a central axis perpendicular to the central axis of the connecting pipe, and used to open or close the flow path in the body; A pressure measuring element arranged in the on-off valve measures the urine pressure in the body when the flow path in the body is disconnected to obtain the corresponding intra-abdominal pressure of the patient.

10. The intra-abdominal pressure measuring urinary catheter device according to claim 8 or 9, wherein the digital display drive mechanism comprises: A housing having a lower connection seat detachably connected to the valve seat and an upper display screen for displaying pressure data measured by a pressure measuring element; A driving structure is installed on the housing and the extension direction of its output member is the same as the axial direction of the valve core.

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