CN219070293U - Connecting joint for pressure measuring device - Google Patents

Abstract

The present disclosure relates to medical devices, and more particularly, to a connection joint for a pressure measurement device. The connecting joint for the pressure measuring device comprises a three-way valve, a hose and a connecting pipe assembly; the three-way valve is provided with three ports, one of the three ports is detachably connected with one end of the hose and can be communicated with one end of the hose, and the other end of the hose is used for being detachably connected with the urine drainage bag; another one of the three ports is for detachable connection with the pressure measuring device and is communicable with the pressure measuring device; the connecting pipe assembly comprises a connecting pipe and a hollow connector which are sequentially connected and communicated, wherein the connecting pipe is detachably connected with the rest one of the three ports and can be communicated with the rest one of the three ports; the connector is used for being detachably connected with the catheter and can be communicated with the catheter. The pressure measuring device is with connecting joint practicality stronger.

Description

Connecting joint for pressure measuring device

Technical Field

The disclosure relates to the technical field of medical equipment, and in particular relates to a connecting joint for a pressure measuring device.

Background

Intra-abdominal pressure refers to intra-abdominal pressure that results from interactions between the abdominal wall and viscera. Sustained elevation of intra-abdominal pressure by various factors can lead to abdominal hypertension (Intraabdominal Hypertension, IAH) which can lead to hypoperfusion of tissues and organs and even progression to the abdominal compartment syndrome (abdominal compartment syndrome, ACS), resulting in multiple organ and system dysfunction, endangering the life of the patient. In recent years, intra-abdominal pressure monitoring is highly valued in monitoring of critical patients, and can provide diagnosis and treatment basis for patients, observe effects after operation treatment, discover disease changes in time and prevent occurrence of complications such as ACS, thereby improving the overall monitoring level of critical patients.

In general, measurement methods of intra-abdominal pressure include direct measurement and indirect measurement; the direct measurement method is that the abdominal cavity is accessed through an abdominal cavity drainage tube or a puncture needle, and the external end of the drainage tube or the puncture needle is connected with a pressure measuring device to measure pressure, but the operation is complex and the infection is easy to cause, so that the use is less; indirect measurements include transvesical, gastric, superior or inferior vena cava, rectal measurements or measurements using abdominal wall tension, etc. The most common method in clinical practice is cystometric, which is simple and inexpensive and has been recommended by the world ACS association as the gold standard for intra-abdominal pressure measurement.

In the practice of cystometric methods, a pressure measuring device needs to be connected to a catheter, but no special connecting joint exists at present, and the problem greatly limits the wide application of intra-abdominal pressure monitoring; in addition, the urinary catheter and the urine drainage bag need to be disconnected or disconnected repeatedly in the implementation process, which may induce urinary infection and air embolism, and urinary tract injury can be caused by dislocation of the urinary catheter, and complications such as urine leakage can be caused by loosening of the urinary catheter joint.

Disclosure of Invention

In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a connection joint for a pressure measuring device.

The present disclosure provides a connection joint for a pressure measuring device, comprising a three-way valve, a hose and a connection pipe assembly; the three-way valve is provided with three ports, one of the three ports is detachably connected with one end of the hose and can be communicated with one end of the hose, and the other end of the hose is used for being detachably connected with the urine drainage bag; another one of the three ports is for detachable connection with the pressure measuring device and is communicable with the pressure measuring device; the connecting pipe assembly comprises a connecting pipe and a hollow connector which are sequentially connected and communicated, wherein the connecting pipe is detachably connected with the rest one of the three ports and can be communicated with the rest one of the three ports; the connector is used for being detachably connected with the catheter and can be communicated with the catheter.

Optionally, the diameter of the hose gradually increases in a direction from approaching the three-way valve to separating from the three-way valve, so that the hose is sleeved outside the joint of the urine drainage bag.

Optionally, the hose is a cylindrical body with a first cavity, and an axial direction of the first cavity is consistent with an axial direction of the hose.

Optionally, the hose comprises a plurality of hose sections which are sequentially connected along the axial direction of the hose so as to increase the stability of the hose after being connected with the joint of the urine drainage bag; and the inner diameters of two adjacent hose sections are unequal, and the sizes of each hose section in the axial direction of the hose are equal, so that the hose can be connected with urine drainage bag connectors of different types.

Optionally, the diameter of the end of the connector, which is close to the connecting tube, is larger than the diameter of the end of the connector, which is far away from the connecting tube, so that the catheter is sleeved outside the connector.

Optionally, the connector is a column body with a cavity, and the axial direction of the cavity is consistent with the axial direction of the connecting pipe.

Optionally, the connector comprises a plurality of connecting sections which are sequentially connected along the axial direction of the connector; the dimension of each connecting section in the axial direction of the connector is equal, and the outer diameter of each connecting section gradually decreases in the direction from approaching the connecting pipe to departing from the connecting pipe.

Optionally, at the junction of two adjacent connection sections, the outer diameter of the end of the connection section close to the connection pipe is smaller than the outer diameter of the end of the connection section far away from the connection pipe.

Optionally, the hose and the connecting tube are transparent tubes.

Alternatively, the hose is threaded with one of the three ports and the connecting tube is threaded with the remaining one of the three ports.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the connecting joint for the pressure measuring device comprises a three-way valve, a hose and a connecting pipe assembly; the three-way valve is provided with three ports, one of the three ports is detachably connected with one end of the hose and can be communicated with one end of the hose, and the other end of the hose is used for being detachably connected with the urine drainage bag; another one of the three ports is for detachable connection with the pressure measuring device and is communicable with the pressure measuring device; the connecting pipe assembly comprises a connecting pipe and a hollow connector which are sequentially connected and communicated, wherein the connecting pipe is detachably connected with the rest one of the three ports and can be communicated with the rest one of the three ports; the connector is used for being detachably connected with the catheter and can be communicated with the catheter. The connecting joint for the pressure measuring device can be connected between catheters with different types and the pressure measuring device, is simple to assemble, firm in connection and good in sealing performance, and therefore the possibility of widely developing intra-abdominal pressure monitoring can be improved; in addition, when the connection joint provided by the embodiment of the disclosure is used for intra-abdominal pressure monitoring, the urinary catheter and the urine drainage bag do not need to be disconnected repeatedly during pressure measurement, under the condition that urine drainage is not affected, dynamic monitoring of intra-abdominal pressure can be achieved, urinary infection and air embolism can be avoided to a certain extent, urethral damage caused by repeated dragging of the urinary catheter can be avoided, complications such as urine leakage caused by looseness of the urinary catheter can be avoided, and accordingly the connection joint for the pressure measuring device provided by the embodiment of the disclosure has strong practicability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for use in the embodiments or the description of the prior art will be briefly described below, it being obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1a is a schematic view of a connection joint for a pressure measuring device according to an embodiment of the disclosure;

FIG. 1b is an exploded view of FIG. 1 a;

FIG. 2 is a view showing a state of use of the connection joint for the pressure measuring device corresponding to FIG. 1 a;

fig. 3 is another schematic structural view of a connection joint for a pressure measurement device according to an embodiment of the present disclosure;

fig. 4 is a view showing a state of use of the connection joint for the pressure measuring device corresponding to fig. 3.

Wherein, the liquid crystal display device comprises a liquid crystal display device,

1. a three-way valve; 2. a hose; 3. a connecting tube assembly;

11. 411, 431, first port; 12. 412, 432, a second port; 13. 413, 433, third port;

10. the pressure measuring device is connected with the joint; 20. a urine drainage bag; 30. a urinary catheter; 40. a pressure measuring device; 50. a syringe; 60. an abdominal cavity drainage tube; 21. a hose section; 31. a connecting pipe; 32. a connector; 33. a transition section; 41. a first three-way valve; 42. a first connection pipe; 43. a second three-way valve; 44. a second connection pipe; 45. a pressure gauge;

321. and a connecting section.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that the embodiments of the present disclosure and features in the embodiments can be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure can be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

Intra-abdominal pressure refers to intra-abdominal pressure that results from interactions between the abdominal wall and viscera. Sustained elevation of intra-abdominal pressure by various factors can lead to abdominal hypertension (Intraabdominal Hypertension, IAH) which can lead to hypoperfusion of tissues and organs and even progression to the abdominal compartment syndrome (abdominal compartment syndrome, ACS), resulting in multiple organ and system dysfunction, endangering the life of the patient. In recent years, intra-abdominal pressure monitoring is highly valued in monitoring of critical patients, and can provide diagnosis and treatment basis for patients, observe effects after operation treatment, discover disease changes in time and prevent occurrence of complications such as ACS (advanced syndrome), thereby improving the overall monitoring level of critical patients.

In general, measurement methods of intra-abdominal pressure include direct measurement and indirect measurement; the direct measurement method is that the abdominal cavity is accessed through an abdominal cavity drainage tube or a puncture needle, and the external end of the drainage tube or the puncture needle is connected with a pressure measuring device to measure pressure, but the operation is complex and the infection is easy to cause, so that the use is less; indirect measurements include transvesical, gastric, superior or inferior vena cava, rectal measurements or measurements using abdominal wall tension, etc. The most common method in clinical practice is cystometric, which is simple and inexpensive and has been recommended by the world ACS association as the gold standard for intra-abdominal pressure measurement. In the practice of cystometric methods, a pressure measuring device needs to be connected to a catheter, but no special connecting joint exists at present, and the problem greatly limits the wide application of intra-abdominal pressure monitoring; in addition, the urinary catheter and the urine drainage bag are required to be disconnected or disconnected repeatedly in the implementation process, which may induce urinary infection and air embolism, urinary tract injury can be caused by dislocation of the urinary catheter, and complications such as urine leakage can be caused by loosening of the urinary catheter interface; although the catheter and the urine drainage bag do not need to be disassembled in the pressure measuring process of the three-cavity catheter, the three-cavity catheter is high in price, and the catheter is not arranged in the clinical department in a conventional way.

Thus, embodiments of the present disclosure provide a connection joint for a pressure measuring device, including a three-way valve, a hose, and a connection pipe assembly; the three-way valve is provided with three ports, one of the three ports is detachably connected with one end of the hose and can be communicated with one end of the hose, and the other end of the hose is used for being detachably connected with the urine drainage bag; another one of the three ports is for detachable connection with the pressure measuring device and is communicable with the pressure measuring device; the connecting pipe assembly comprises a connecting pipe and a hollow connector which are sequentially connected and communicated, wherein the connecting pipe is detachably connected with the rest one of the three ports and can be communicated with the rest one of the three ports; the connector is used for being detachably connected with the catheter and can be communicated with the catheter. The connecting joint for the pressure measuring device can be connected between catheters with different types and the pressure measuring device, is simple to assemble, firm in connection and good in sealing performance, and therefore the possibility of widely developing intra-abdominal pressure monitoring can be improved; in addition, when the connection joint provided by the embodiment of the disclosure is used for intra-abdominal pressure monitoring, if urine is required to be blocked to prevent urine from flowing back, the three-way valve is only required to be rotated to enable the port leading to the direction of the urine drainage bag to be closed, so that the urinary catheter and the urine drainage bag do not need to be repeatedly disconnected every time for pressure measurement, under the condition that urine drainage is not affected, dynamic monitoring of intra-abdominal pressure can be realized, urinary infection and air embolism induced by repeatedly disconnecting the urinary catheter and the urine drainage bag can be avoided to a certain extent, urethral damage caused by repeatedly dragging the urinary catheter can be avoided, and complications such as urine leakage caused by loosening of the urinary catheter can be avoided, so that the connection joint for the pressure measuring device provided by the embodiment of the disclosure has stronger practicability.

In addition, the connection joint for the pressure measuring device provided by the embodiment of the disclosure can be connected among the abdominal cavity drainage tube, the pressure measuring device and the drainage bag, and also can be sleeved on the stomach tube, and in some cases, the intra-abdominal pressure is measured by a direct method under the condition that the abdominal cavity drainage tube and the drainage bag are not disconnected, or the intra-abdominal pressure is estimated by measuring the intra-gastric pressure. Therefore, the practicability of the connecting joint for the pressure measuring device provided by the embodiment of the disclosure can be further improved.

The embodiments of the present disclosure will be described in detail below with reference to the attached drawings and detailed description.

Referring to fig. 1a to 2, fig. 1a is a schematic structural diagram of a connection joint for a pressure measuring device according to the disclosed embodiment, fig. 1b is an exploded view of fig. 1a, and fig. 2 is a usage state diagram of the connection joint for the pressure measuring device corresponding to fig. 1 a. As shown in fig. 1a to 2, the embodiment of the present disclosure provides a connection joint 10 for a pressure measuring device, including a three-way valve 1, a hose 2, and a connection pipe assembly 3, the three-way valve 1 having a first port 11, a second port 12, and a third port 13 sequentially distributed in a counterclockwise direction of the three-way valve 1; one end of the hose 2 is connected with the second port 12 in a threaded manner and can be communicated with the second port 12, and the other end of the hose 2 is used for being connected with the urine drainage bag 20; the connecting pipe assembly 3 comprises a connecting pipe 31 and a hollow connector 32 which are sequentially connected and communicated, the connecting pipe 31 is in threaded connection with the first port 11 and can be communicated with the first port 11, and the catheter 30 can be sleeved outside the connector 32; the third port 13 is for connection to the pressure measuring device 40 and may be in communication with the pressure measuring device 40.

The connection joint 10 for the pressure measuring device provided by the embodiment can be connected between the catheter 30 and the pressure measuring device 40, is convenient to assemble, firm in connection and good in sealing performance, so that the possibility of widely developing intra-abdominal pressure monitoring can be improved; in addition, when the pressure measuring device provided by the embodiment is used for intra-abdominal pressure monitoring, the catheter 30 and the urine drainage bag 20 do not need to be detached, if urine is required to be blocked so as to prevent urine from flowing back, the three-way valve 1 is only required to be rotated to seal the second port 12 leading to the direction of the urine drainage bag 20, so that urinary infection and air embolism are avoided to a certain extent, urethral damage caused by dislocation of the catheter 30 can be avoided, and complications such as urine leakage caused by looseness of the interface of the catheter 30 can be avoided.

In this embodiment, in order to achieve the transitional connection between the connection pipe 31 and the connection head 32, the connection pipe assembly 3 further includes a transitional section 33 connected between the connection pipe 31 and the connection head 32, and the specific shape of the transitional section 33 is not limited as long as the transitional connection between the connection pipe 31 and the connection head 32 can be achieved.

Because the hose 2 may be made of silica gel, in order to increase the friction between the hose 2 and the joint of the urine drainage bag 20, the hose 2 may be more firmly sleeved on the joint of the urine drainage bag 20, and in the specific implementation manner of this embodiment, the diameter of the hose 2 gradually increases in the direction from the direction close to the three-way valve 1 to the direction far away from the three-way valve 1, so that the hose 2 is sleeved outside the joint of the urine drainage bag 20.

Because the catheter 30 is made of rubber, in order to realize reliable connection between the catheter 30 and the connector 32, the diameter of the end of the connector 32, which is close to the connecting pipe 31, is larger than the diameter of the end of the connector 32, which is far away from the connecting pipe 31, so that the catheter 30 is sleeved outside the connector 32. In this way, a reliable connection of the urinary catheter 30 with the connector 32 can be achieved when the urinary catheter 30 is made of a soft material and the connector 32 is made of a hard material.

For ease of viewing, for example, for ease of viewing the urine color or the presence of air within the passageway, in some alternative embodiments, both hose 2 and connecting tube 31 are transparent tubes.

Further, the hose 2 is a cylindrical body with a first cavity, the axial direction of the first cavity is consistent with the axial direction of the hose 2, and the hose 2 comprises a plurality of hose sections 21 which are sequentially connected along the axial direction of the hose so as to increase the stability of the hose 2 after being connected with the joint of the urine drainage bag 20; and the inner diameters of two adjacent hose segments 21 are not equal, and the size of each hose segment 21 in the axial direction of the hose 2 is equal, so that the hose 2 can be connected with the connectors of urine drainage bags 20 of different types.

In some alternative embodiments, the connector 32 is a cylindrical body with a second cavity, and the axial direction of the second cavity is consistent with the axial direction of the connecting tube 31, specifically, the connector 32 includes a plurality of connecting segments 321 connected in sequence along the axial direction of the connector 32; each of the connecting sections 321 is equal in size in the axial direction of the connection head 32, and the outer diameter of each of the connecting sections 321 gradually decreases in the direction from approaching the connection pipe 31 to departing from the connection pipe 31.

Further, in order to increase the friction between the catheter 30 and the connector 32, so that the catheter 30 can be more firmly sleeved on the connector 32, in this embodiment, at the junction of two adjacent connecting sections 321, the outer diameter of the end of the connecting section 321 close to the connecting pipe 31 is smaller than the outer diameter of the end of the connecting section 321 far away from the connecting pipe 31, more specifically, a step surface exists between the two adjacent connecting sections 321, and thus, the friction between the catheter 30 and the connector 32 can be increased, so that the catheter 30 can be more firmly sleeved on the connector 32. It should be noted that the unequal outer diameters of the connecting sections 321 also allow the connector 32 to be connected to different types of catheters 30.

Since the joint structure of the urine drainage bag 20 is the same as that of the connector 32, the flexible tube 2 is made of a soft material, and the material of which the flexible tube 2 is made is not limited.

It should be noted that, in this embodiment, the gastric tube may be sleeved outside the connector 32, and the gastric tube may be used to assist the patient incapable of swallowing to deliver necessary moisture and food under special circumstances, and since in some circumstances, such as cases of acute cystitis, bladder tumor, neurogenic bladder, etc., the pressure in the abdominal cavity is estimated by using the pressure of the bladder to be less reliable, the abdominal pressure may be measured at various positions of the abdomen according to pascal's law because the abdomen and its content have relatively incompressible and flowable characteristics, and at this time, the connector 32 may be directly connected to the gastric tube, and the intra-abdominal pressure may be estimated by measuring the intra-gastric pressure.

As shown in fig. 2, in some alternative embodiments, the pressure measuring device 40 includes a first three-way valve 41, a first connection pipe 42, a second three-way valve 43, a second connection pipe 44, and a pressure measuring meter 45, the first three-way valve 41 having a first port 411, a second port 412, and a third port 413 sequentially distributed in a counterclockwise direction, the first port 411 being connected to the third port 13 and communicable with the third port 13; the second port 412 may be connected to the syringe 50; the third port 413 is connected to one end of the first connection pipe 42, and may communicate with one end of the first connection pipe 42; the second three-way valve 43 has a first port 431, a second port 432, and a third port 433 sequentially distributed in a clockwise direction, the first port 431 being connected to the other end of the first connection pipe 42 and communicable with the other end of the first connection pipe 42; the third port 433 is connected to one end of the second connection pipe 44, and may communicate with one end of the second connection pipe 44, and the other end of the second connection pipe 44 is connected to the pressure gauge 45.

When the connector 32 is connected to the catheter 30 and the pressure measuring device 40 is adopted, the following description is given to the use principle of the connector 10 for a pressure measuring device according to the present embodiment:

firstly, preparation is needed before pressure measurement, specifically, a standby clip is used for clamping the urinary catheter 30 or the urinary catheter 30 is reversely folded, a clip carried by the urine drainage bag 20 is used for clamping the urine drainage bag 20, and the urinary catheter 30 and the urine drainage bag 20 are disconnected;

the connector 32 is connected with the catheter 30, the hose 2 is connected with the urine drainage bag 20, the first port 11 is connected with the connecting pipe 31, and the second port 12 is connected with the hose 2, wherein when the connector of the urine drainage bag 20 is a screw connector, the urine drainage bag 20 can be directly connected with the second port 12;

the three-way valve 1 is rotated to open the first port 11 and the second port 12, the third port 13 is closed, the clamps of the catheter 30 and the urine drainage bag 20 are loosened, at the moment, the catheter 30, the connecting pipe 31, the first port 11, the second port 12, the hose 2 and the urine drainage bag 20 are communicated, and here, whether urine smoothly flows out or not needs to be noted, whether urine leaks or not can be noted, a flushing test can be carried out by connecting a syringe through the third port 13, and the smooth and parallel air leakage of a pipeline is ensured;

the bladder is then emptied. Here, the bladder being emptied is understood to be that the patient has drained urine, and whether the patient has drained urine is determined by observing whether the urine in the urine drainage bag 20 changes.

Preparing a pressure measuring device 40, checking the air tightness of the pressure measuring device 40 and the performance of a pressure measuring meter 45 by using a 50ml syringe 50, and finally, zeroing the pressure measuring meter 45, which is not specifically described herein;

then, the first three-way valve 41 is rotated to open the first port 411 and the second port 412, the third port 413 is closed, the 50ml syringe 50 is filled with physiological saline at a temperature not less than 25 ℃ and then connected with the second port 412, and the first port 411 is connected with the third port 13;

then, the three-way valve 1 is turned to open the second port 12 and the third port 13 and close the first port 11, and at this time, the syringe 50, the second port 412, the first port 411, the third port 13, the second port 12, the hose 2, and the urine drainage bag 20 are communicated, and at this time, physiological saline at 25 ℃ or more is injected into the passage by the syringe 50 to discharge air and check for leakage.

Then, a pressure measuring process is carried out, in particular, the patient is in a completely supine position without buckling double lower limbs, the abdominal muscles are ensured to have no contraction state, cough, twitch and dysphoria of the patient are avoided, after the bladder is emptied, the three-way valve 1 is rotated to close the second port 12 and open the first port 11 and the third port 13, at the moment, the catheter 30, the connecting pipe 31, the first port 11 and the third port 13 are communicated with the first port 411, the second port 412 and the syringe 50;

then, the syringe 50 injects 25ml of physiological saline with the temperature of more than or equal to 25 ℃ into the channel and keeps the syringe 50 at the second port 412;

after that, after waiting for 30 seconds of the above-mentioned normal saline injection, the first three-way valve 41 is turned to open the first port 411 and the third port 413, the second port 412 is closed, the second three-way valve 43 is turned to close the second port 432, and the first port 431 and the third port 433 are opened, and at this time, the catheter 30, the connection tube 31, the first port 11, the third port 13, the first port 411, the third port 413, the first connection tube 42, the first port 431, the third port 433, and the second connection tube 44 are communicated with the pressure meter 45; finally, at the end of calm breath of the patient, the reading of the manometer 45 is taken, and the unit is converted from cmH2O (centimeter water column) to mmHg (millimeter mercury column), which is the measurement of intra-abdominal pressure.

Referring to fig. 3 and 4, fig. 3 is another schematic structural diagram of a connection joint for a pressure measuring device according to an embodiment of the disclosure, and fig. 4 is a use state diagram of the connection joint for the pressure measuring device corresponding to fig. 3. As shown in fig. 3 and 4, for a patient having an abdominal drainage tube 60, the connection tube assembly 3 is removed, the external end of the abdominal drainage tube 60 is directly connected to and communicates with the third port 13, at this time, the first port 11 is connected to the urine drainage bag 20, and the second port 12 is connected to the pressure measuring device 40, at this time, the pressure measuring device 40 may include only the first connection tube 42, the second three-way valve 43, the second connection tube 44, and the pressure measuring meter 45, and the first connection tube 42 is connected to the second port 12.

When in use, the three-way valve 1 is rotated to close the first port 11, and the second port 12 and the third port 13 are opened; the second three-way valve 43 is turned to close the second port 432 and the first and third ports 431 and 433 are opened, and then the reading on the manometer 45 is read.

The abdominal cavity drainage tube 60 is a tube for draining fluid in the abdominal cavity or injecting medicine.

The connecting joint for the pressure measuring device comprises a three-way valve, a hose and a connecting pipe assembly; the three-way valve is provided with three ports, one of the three ports is detachably connected with one end of the hose and can be communicated with one end of the hose, and the other end of the hose is used for being detachably connected with the urine drainage bag; another one of the three ports is for detachable connection with the pressure measuring device and is communicable with the pressure measuring device; the connecting pipe assembly comprises a connecting pipe and a hollow connector which are sequentially connected and communicated, wherein the connecting pipe is detachably connected with the rest one of the three ports and can be communicated with the rest one of the three ports; the connector is used for being detachably connected with the catheter and can be communicated with the catheter, wherein. The connecting joint for the pressure measuring device can be connected between catheters with different types and the pressure measuring device, is convenient to assemble, firm in connection and good in sealing performance, and therefore the possibility of widely developing intra-abdominal pressure monitoring can be improved; in addition, when the connection joint provided by the embodiment of the disclosure is used for intra-abdominal pressure monitoring, if urine is required to be blocked to prevent urine from flowing back, the three-way valve is only required to be rotated to seal the port leading to the direction of the urine drainage bag, so that the urinary catheter and the urine drainage bag do not need to be disconnected repeatedly during each pressure measurement, under the condition that urine drainage is not influenced, not only can the intra-abdominal pressure be dynamically monitored, but also urinary tract infection and air embolism can be avoided to a certain extent, urethral damage caused by dislocation of the urinary catheter can be avoided, and complications such as urine leakage caused by looseness of the urinary catheter can be avoided, so that the connection joint for the pressure measuring device provided by the embodiment of the disclosure has strong practicability; in addition, the connection joint for the pressure measuring device provided by the embodiment can be connected among the abdominal cavity drainage tube, the pressure measuring device and the drainage bag, and also can be sleeved on the stomach tube, and in some cases, the intra-abdominal pressure is measured by a direct method under the condition that the abdominal cavity drainage tube and the drainage bag are not disconnected, or the intra-abdominal pressure is estimated by measuring the intra-gastric pressure. Therefore, the practicability of the connecting joint for the pressure measuring device provided by the embodiment can be further improved.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A connecting joint (10) for a pressure measuring device is characterized by comprising a three-way valve (1), a hose (2) and a connecting pipe assembly (3);

the three-way valve (1) is provided with three ports, one of the three ports is detachably connected with one end of the hose (2) and can be communicated with one end of the hose (2), and the other end of the hose (2) is used for being detachably connected with the urine drainage bag (20);

another of the three ports is for detachable connection with a pressure measuring device (40) and is communicable with the pressure measuring device (40);

the connecting pipe assembly (3) comprises a connecting pipe (31) and a hollow connecting head (32) which are sequentially connected and communicated, wherein the connecting pipe (31) is detachably connected with the rest of the three ports and can be communicated with the rest of the three ports; the connector (32) is used for being detachably connected with the catheter (30) and can be communicated with the catheter (30).

2. The connection joint (10) for a pressure measuring device according to claim 1, wherein the diameter of the hose (2) gradually increases in a direction from approaching the three-way valve (1) to separating from the three-way valve (1) so that the hose (2) is fitted over the joint of the urine drainage bag (20).

3. The connection joint (10) for a pressure measuring device according to claim 1, wherein the hose (2) is a columnar body having a first cavity, and an axial direction of the first cavity coincides with an axial direction of the hose (2).

4. A connection joint (10) for a pressure measuring device according to claim 3, characterized in that the hose (2) comprises a plurality of hose segments (21) connected in sequence in the axial direction of the hose (2);

the inner diameters of two adjacent hose sections (21) are not equal, and the dimensions of each hose section (21) in the axial direction of the hose (2) are equal.

5. The connection joint (10) for a pressure measuring device according to claim 1, wherein the diameter of the end of the connection joint (32) close to the connection tube (31) is larger than the diameter of the end of the connection tube (31) away from the connection tube (31) so that the catheter (30) is sleeved outside the connection joint (32).

6. The connection joint (10) for a pressure measuring device according to claim 1, wherein the connection joint (32) is a columnar body having a second cavity, and an axial direction of the second cavity coincides with an axial direction of the connection pipe (31).

7. The connection joint (10) for a pressure measuring device according to claim 6, wherein the connection joint (32) includes a plurality of connection segments (321) connected in sequence in an axial direction of the connection joint (32);

the dimension of each connecting section (321) in the axial direction of the connecting head (32) is equal, and the outer diameter of each connecting section (321) gradually decreases in the direction from approaching the connecting pipe (31) to separating from the connecting pipe (31).

8. The connection joint (10) for a pressure measuring device according to claim 7, wherein an outer diameter of an end portion of the connection section (321) close to the connection pipe (31) is smaller than an outer diameter of an end portion of the connection section (321) away from the connection pipe (31) at a junction of two adjacent connection sections (321).

9. The connection joint (10) for a pressure measuring device according to any one of claims 1 to 8, wherein the hose (2) and the connection tube (31) are both transparent tubes.

10. A connection joint (10) for a pressure measuring device according to any one of claims 1-8, characterized in that the hose (2) is screwed with one of the three ports, and the connection tube (31) is screwed with the remaining one of the three ports.

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