Biliary tract drainage pressure measuring device for T-shaped tube and integrated T-shaped tube device

Abstract

The utility model discloses a biliary tract drainage pressure measuring device for a T-shaped tube. The biliary tract drainage pressure measuring device comprises a pipeline fixing plate, a pressure measuring device and a pressure measuring device, wherein the pipeline fixing plate is used for fixing a pressure measuring infusion pipeline and is detachably connected with an infusion support; the laser calibrator is arranged on the pipeline fixing plate and is used for positioning a relative pressure zero point; the pressure measuring graduated scale is arranged on the pipeline fixing plate and is used for marking pressure scales; a first port of the three-way valve is used for being connected with the tail end of the pressure measuring infusion pipeline, a second port of the three-way valve is used for being connected with a longitudinal pipeline of the T-shaped pipe, and a third port of the three-way valve is used for being connected with a drainage pipe or a drainage bag with the drainage pipe. The biliary tract drainage pressure measuring device is simple in structure and convenient to use, is connected with the T-shaped tube indwelling in the common bile duct, can conduct radiography and drainage on the common bile duct, can quickly and accurately monitor biliary tract pressure change conditions during the period of indwelling the T-shaped tube, saves time of medical staff, and improves work efficiency. In addition, the utility model further provides an integrated T-shaped tube device with the biliary tract drainage pressure measuring device.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a bile duct drainage pressure measuring device for a T-tube and an integrated T-tube device. Background Art

[0002] In recent years, with the changes in people's diet and the increasing obesity rate, the incidence of cholelithiasis has increased year by year. Among them, some patients with common bile duct stones use laparoscopic common bile duct exploration (LCBDE). During the operation, a T-tube will be placed in the common bile duct. After the operation, T-tube angiography is required before the T-tube is removed. At the same time, during the retention of the T-tube, the changes in bile duct pressure are monitored to determine whether there are residual lesions such as residual bile duct stones, inflammatory stenosis at the end of the bile duct, and edema at the end of the bile duct.

[0003] The T-tube currently used in hospitals is often a T-shaped latex tube, and the end is connected to the drainage tube and drainage bag after surgery. When performing T-tube angiography or bile duct pressure measurement, it is necessary to remove the drainage tube first, and then inject contrast agent or saline through the end of the T-tube to operate, which is extremely inconvenient and easily increases the risk of infection. When performing bile duct pressure measurement through a T-tube, a doctor or nurse is usually required to operate manually. At present, in clinical practice, a bag of 100ml saline, an infusion set, and a scale are generally used to directly measure the bile duct pressure. However, using such a measurement method, the curvature and elasticity of the infusion line of the infusion set pressure measurement will affect the reading, and the selection of the measurement zero point requires naked eye proofreading, thereby affecting the final interpretation of the bile duct pressure. Therefore, it is currently urgent to develop a device that can conveniently provide accurate measurement numerical basis. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and to provide a biliary drainage pressure measuring device for a T-tube, which has a simple structure and is easy to use. By connecting with a T-tube indwelling in the common bile duct, the common bile duct can be imaged and drained, and the changes in bile duct pressure during the indwelling of the T-tube can be quickly and accurately monitored, thereby saving time for medical staff and improving work efficiency. In addition, an integrated T-tube device with the above-mentioned biliary drainage pressure measuring device is also provided.

[0005] In order to achieve the above-mentioned purpose of the utility model, on the one hand, the utility model provides a biliary drainage pressure measuring device for a T-tube, comprising: a pipeline fixing plate for fixing a pressure measuring infusion pipeline and detachably connected to an infusion stand; a laser calibrator for locating a relative pressure zero point arranged on the pipeline fixing plate; a pressure measuring scale for marking pressure scales arranged on the pipeline fixing plate; a three-way valve whose first port is used to be connected to the end of the pressure measuring infusion pipeline, whose second port is used to be connected to the longitudinal pipeline of the T-tube, and whose third port is used to be connected to a drainage tube or a drainage bag with a drainage tube.

[0006] Preferably, the pipeline fixing plate is a long strip fixing plate.

[0007] Preferably, the pipeline fixing plate is provided with a groove extending along its length direction for clamping the pressure measuring infusion pipeline.

[0008] Preferably, the pipeline fixing plate is provided with an arc-shaped sleeve extending along its length direction and used for clamping the pressure measuring infusion pipeline.

[0009] Preferably, the laser calibrator is arranged at the lower part of the pipeline fixing plate.

[0010] In addition, the utility model also provides an integrated T-tube device, which includes the biliary drainage pressure measuring device and the T-tube as described above.

[0011] Compared with the prior art, the bile duct drainage pressure measuring device and the integrated T-tube device for T-tube of the utility model have the following advantages:

[0012] 1. The utility model is a biliary drainage pressure measuring device for a T-tube, which has a simple structure and is easy to use. By connecting with a T-tube indwelling in the common bile duct, the common bile duct can be imaged and drained, and the biliary pressure changes during the T-tube indwelling period can be quickly and accurately monitored, thereby saving time for medical staff and improving work efficiency.

[0013] 2. The utility model is a biliary drainage pressure measuring device for a T-tube. The T-tube is connected to a three-way valve, and pressure measurement or angiography can be performed without removing the T-tube, thereby increasing the convenience of operation and reducing the risk of infection. The pipeline fixing plate can be conveniently fixed on the infusion stand, and the pressure measuring infusion pipeline can be detachably fixed on the pipeline fixing plate. The laser calibrator can emit a laser to fall on the patient's mid-axillary line to locate the pressure zero point with laser, and the pressure reading is performed through the pressure measuring scale on the pipeline fixing plate. Compared with the prior art that requires visual observation to calibrate the pressure, the pressure zero point can be quickly adjusted, the measurement and reading errors can be reduced, the accuracy of bile duct pressure assessment is improved, and clinical treatment can be better guided.

[0014] The utility model is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the first structure of the bile duct drainage pressure measuring device for a T-tube of the utility model without showing the three-way valve;

[0016] Figure 2 This is a second structural schematic diagram of the bile duct drainage pressure measuring device of the utility model, in which the three-way valve is not shown;

[0017] Figure 3 yes Figure 1 A schematic diagram of the structure in which the middle structure is placed on an infusion stand and a pressure-measuring infusion pipeline is fixed;

[0018] Figure 4 It is a schematic diagram of the connection between the drainage bag, three-way valve and T-tube;

[0019] Figure 5 It is a schematic diagram of the integrated T-tube device of the utility model being applied to a patient. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 3 As shown, they are two structural schematic diagrams of the utility model for the bile duct drainage pressure measuring device of the T-tube when the three-way valve is not shown and a structural schematic diagram of placing the first structure on the infusion stand and fixing the pressure measuring infusion pipeline, as shown in FIG. Figure 4 As shown in FIG. 1 , it is a schematic diagram of connecting the drainage bag, the three-way valve and the T-shaped tube. Figure 5 FIG. 2 is a schematic diagram of the integrated T-shaped pipe device of the utility model during use.

[0021] Depend on Figure 1-Figure 5 It can be seen that the biliary drainage pressure measuring device for a T-tube of the utility model includes: a pipeline fixing plate 1 for fixing the pressure measuring infusion pipeline 7a and detachably connected to the infusion stand 6; a laser calibrator 4 for locating the relative pressure zero point arranged on the pipeline fixing plate; a pressure measuring scale 3 for marking the pressure scale arranged on the pipeline fixing plate; a three-way valve 9 whose first port is used to be connected to the end of the pressure measuring infusion pipeline, and whose second port is used to be connected to the longitudinal pipeline of the T-tube 10.

[0022] Specifically, Figure 1 As shown, the pipeline fixing plate of the utility model is a long strip fixing plate. In order to facilitate the fixing of the pressure measuring infusion pipeline 7a, a fixing structure for clamping the pressure measuring infusion pipeline can be provided in front of the pipeline fixing plate and extends along its length direction. The fixing structure can be a nearly semicircular groove 5a (see Figure 2 ), the pipeline fixing plate may also be fixedly installed with an arc-shaped sleeve 5 extending along its length direction for clamping the pressure measuring infusion pipeline (see Figure 1), when an arc-shaped sleeve is used, the opening of the arc-shaped sleeve is located on the side away from the pipeline fixing plate. In order to conveniently connect the pipeline fixing plate with the infusion stand, a clamping structure is fixedly installed on the back of the pipeline fixing plate. The clamping structure can be an elastic clamping claw, or a magnet with magnetic properties that can be adsorbed on the infusion stand, or an element in the prior art that can conveniently and quickly connect two objects together.

[0023] During design, the length of the fixed structure can be slightly smaller than the length of the pipeline fixing plate, so that a laser calibrator capable of emitting laser light can be installed at the bottom of the pipeline fixing plate. During application, the laser calibrator can adopt the laser calibrator capable of emitting laser beam in the prior art.

[0024] In order to mark the pressure, a pressure measuring scale for marking the pressure scale is provided on the pipeline fixing plate and located on one side of the fixing structure. The scale can be formed by scale lines printed on the pipeline fixing plate, or can be a separate scale, which is then fixed to the pipeline fixing plate by gluing or other means. During assembly, the zero point of the scale should coincide with the center point of the laser beam that can be emitted by the laser calibrator.

[0025] In addition to the above-mentioned components, the bile duct drainage pressure measuring device of the utility model also includes a three-way valve, and its three ports are all equipped with threaded caps. When used, the three-way valve can be a medical three-way valve. When any port is used, the threaded cap at the port needs to be removed and the port needs to be disinfected. Among them, the first port of the three-way valve is used to connect with the end of the pressure measuring infusion pipeline, the second port is used to connect with the longitudinal pipeline of the T-tube, and the third port is used to connect with the drainage tube or the drainage bag 8 with the drainage tube.

[0026] In addition, the utility model also provides an integrated T-tube device, which includes the above-mentioned bile duct drainage pressure measuring device and a T-tube, and the three-way valve of the bile duct drainage measuring device is connected to the transverse pipeline for the T-tube placed in the bile duct of the patient 11 (see Figure 5 ).

[0027] The following describes the application process of the bile duct drainage pressure measuring device and its integrated T-tube device according to the present invention in combination with the figures.

[0028] When performing biliary surgery on a patient, the doctor uses the existing technology to place and fix the transverse pipeline of the T-tube in the bile duct, and lead the longitudinal pipeline of the T-tube out of the abdominal cavity with the end exposed to the skin; then, by rotating the three-way valve, the passage from the second port to the third port of the three-way valve is connected and the first port is closed (the structure of the three-way valve and the principle of connecting or closing each port are the same as those of the medical three-way valve in the existing technology, which will not be described in detail here), remove the threaded caps at the second port and the third port and disinfect the ports, and connect the second port of the three-way valve that matches it to the end of the longitudinal pipeline (such as Figure 5As shown in FIG. 1 , a drainage tube and a drainage bag are connected to the third port of the three-way valve. In this way, the bile in the patient's bile duct drained by the T-tube can be drained into the drainage bag.

[0029] When the doctor needs to monitor the pressure in the patient's bile duct through a T-tube after biliary surgery to guide clinical decision-making, remove the threaded cap at the first port of the three-way valve and disinfect the port, then adjust the three-way valve knob to connect the passage between the second port and the first port and close the third port. Then connect the first port to the pressure-measuring infusion pipeline (disposable infusion tubes commonly used in clinical practice are connected to 100ml saline bags), and the bile drained through the T-tube will automatically flow into the pressure-measuring infusion pipeline. In this process, there is no need to remove the drainage tube at the third port, thereby reducing the risk of infection in patients. Then the doctor fixes the infusion pressure-measuring pipeline in the fixed structure (groove or arc-shaped sleeve) of the pipeline fixing plate, fixes the pipeline fixing plate to the infusion stand through the rear fixed structure, and adjusts the height of the pipeline fixing plate on the infusion stand through the laser calibrator in front of the pipeline fixing plate until the point where the laser beam emitted by the laser calibrator falls on the patient's mid-axillary line is located, and the pressure measurement is zeroed (also known as positioning the relative pressure zero point). Compared with the prior art, which requires visual observation to check whether the pressure is zero, the present invention uses the laser beam emitted by the laser calibrator to locate the patient's mid-axillary line, which is more accurate and quick. After that, remove the 100ml saline bag, wait for the liquid level in the pressure-measuring infusion line to gradually drop to a stable level, and read the reading at the stable liquid level corresponding to the pressure-measuring scale on the fixed plate of the line. The corresponding value of the reading at this time can be regarded as the pressure in the bile duct.

[0030] The utility model uses a laser calibrator to measure pressure and return to zero, so that the liquid level in the pressure-measuring infusion pipeline is adjusted to the same level as the patient's bile duct system, reducing the error caused by different pressure-measuring planes during each measurement, and limiting the vertical descent of the pressure-measuring infusion pipeline through a fixed structure, avoiding the situation in the prior art where the infusion pipeline is bent and affects the reading due to the manual lifting of the infusion device. After removing the physiological saline bag, the liquid level (referred to as the liquid level) in the pressure-measuring infusion pipeline will continue to decline under the action of the liquid column pressure, and the liquid level tends to stabilize when it is close to the bile duct pressure, thereby indirectly reflecting the bile duct pressure and directly reading it through the pressure measuring scale, so that a more accurate bile duct pressure value can be obtained, reducing the doctor's misjudgment of the bile duct pressure.

[0031] Although the utility model is described in detail above, the utility model is not limited thereto, and technicians in this technical field can make modifications based on the principles of the utility model. Therefore, all kinds of modifications made according to the principles of the utility model should be understood to fall within the protection scope of the utility model.

Claims

1. A biliary drainage pressure measuring device for a T-tube, characterized in that: include: A pipeline fixing plate used for fixing the pressure measuring infusion pipeline and detachably connected to the infusion stand; A laser calibrator disposed on the pipeline fixing plate for locating the relative pressure zero point; A pressure measuring scale for marking pressure scales arranged on the pipeline fixing plate; The first port is used to connect to the three-way valve at the end of the pressure measuring infusion pipeline, the second port is used to connect to the longitudinal pipeline of the T-tube, and the third port is used to connect to the drainage tube or the drainage bag with the drainage tube.

2. The biliary drainage pressure measuring device according to claim 1, characterized in that: The pipeline fixing plate is a long strip fixing plate.

3. The biliary drainage pressure measuring device according to claim 1 or 2, characterized in that: The pipeline fixing plate is provided with a groove extending along the length direction thereof for clamping the pressure measuring infusion pipeline.

4. The biliary drainage pressure measuring device according to claim 1 or 2, characterized in that: The pipeline fixing plate is provided with an arc-shaped sleeve extending along its length direction and used for clamping the pressure measuring and infusion pipeline.

5. The biliary drainage pressure measuring device according to any one of claims 1 to 4, characterized in that: The laser calibrator is arranged at the lower part of the pipeline fixing plate.

6. An integrated T-tube device, characterized in that: It comprises the biliary drainage pressure measuring device as described in any one of claims 1 to 5.

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