Manual central venous pressure measuring device

Abstract

The utility model discloses a manual central venous pressure measuring device which is divided into two channels, one channel is an infusion bottle connector used for being connected with an infusion bottle, the other channel is a normal saline bottle connector used for being connected with normal saline for measuring pressure, and the channels on the two sides exhaust air. And the other end of the device is a positive pressure connector connected with a central venous catheter. In the device, an infusion bottle joint and a normal saline bottle joint form a Y-shaped connecting structure, and a monitoring channel exhaust pipe is arranged at the lower end of the Y-shaped structure; the lower end of the exhaust pipe of the monitoring channel is a pressure measuring pipe with scales, and the lower end of the pressure measuring pipe is provided with a pre-charging interface; an infusion dripping speed adjusting switch is arranged at the lower end of the infusion bottle connector; a water stop clamp A is arranged at the lower end of the normal saline bottle joint; a water stop clamp B is arranged at the lower end of the monitoring channel exhaust pipe. The device has the advantages that the operation of measuring the central venous pressure and the infusion treatment function are achieved at the same time, the device is economical and easy and convenient to operate, and the device can be used for measuring the central venous pressure as long as the central venous catheterization technology is adopted.

Description

Technical Field

[0001] This utility model relates to the field of central venous pressure measurement, specifically a manual central venous pressure measurement device. Background Technology

[0002] The shortcomings and deficiencies of existing methods for measuring central venous pressure are as follows:

[0003] There are currently two methods for measuring central venous pressure:

[0004] The first pressure measurement method involves connecting a pressure sensor to an electrocardiogram (ECG) monitor with invasive monitoring capabilities via a lead wire. The pressure sensor transmits the pressure to the monitor via the lead wire to read the central venous pressure monitoring data. Its drawbacks are: (1) It requires both a sensor and an ECG monitor with invasive monitoring capabilities; (2) The sensor is a special consumable and is relatively expensive, which is wasteful for patients with low measurement frequency; (3) The pressure measurement port can only be used for pressure measurement, which has a certain impact on patients who need multi-channel infusion therapy. If the pressure measurement channel is used for infusion, the monitoring process is affected by the infusion rate, which has a certain impact on the pressure data; (4) Adding a sensor and monitor lead wire to the central venous catheter results in too many wires, affecting patient comfort. Due to gravity, the central venous catheter may dislodge, leading to unplanned extubation.

[0005] The second method of pressure measurement involves disconnecting the infusion line connected to the central venous catheter and observing the fluid level fall freely until it stabilizes. The central venous pressure is then measured using a ruler above the right atrium. However, this method compromises the airtightness of the infusion system and the continuity of medication administration, potentially increasing the risk of infection and fluctuations in the patient's condition. Utility Model Content

[0006] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a manual central venous pressure measurement device that simultaneously performs central venous pressure measurement and intravenous infusion therapy. It is economical and easy to operate, and anyone with central venous catheterization skills can use this device to measure central venous pressure.

[0007] This invention is implemented by constructing a manual central venous pressure measuring device. The device has two channels: one is an infusion bottle connector for connecting to an infusion bottle, and the other is a saline bottle connector for connecting to the saline solution used for pressure measurement. Both channels are vented. The other end of the device is a positive pressure connection connector for connecting to a central venous catheter.

[0008] According to the present invention, a manual central venous pressure measuring device is provided; the infusion bottle connector and the saline bottle connector form a Y-shaped connection structure.

[0009] According to the present invention, a manual central venous pressure measuring device is provided; the lower end of the Y-shaped structure is provided with a monitoring channel exhaust pipe.

[0010] According to the present invention, a manual central venous pressure measuring device is provided; the lower end of the exhaust pipe of the monitoring channel is a pressure measuring tube with a scale, and the lower end of the pressure measuring tube is provided with a pre-charge interface.

[0011] According to the present invention, a manual central venous pressure measuring device is provided; an infusion drip rate adjustment switch is provided at the lower end of the infusion bottle connector; and a water-stop clamp A is provided at the lower end of the saline bottle connector.

[0012] According to the present invention, a manual central venous pressure measuring device is provided; a water-stop clamp B is provided at the lower end of the exhaust pipe of the monitoring channel.

[0013] This utility model has the following advantages:

[0014] 1. This device combines the functions of measuring central venous pressure and intravenous infusion therapy. It is economical and easy to operate. Anyone with central venous catheterization skills can use this device to measure central venous pressure.

[0015] 2. The entire process of measuring central venous pressure fully considers the needs of treatment and monitoring, while also taking into account hospital infection control requirements. There are no operations that would damage the airtightness of the infusion and monitoring system, and there is no pollution, reducing or avoiding the occurrence of bloodstream infections related to vascular catheters.

[0016] 3. Compared with traditional sensor monitoring methods, this device reduces the number of tubes on the patient, improving patient comfort; the device is lightweight, reducing traction on the central venous catheter, thereby reducing the risk of unplanned extubation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the implementation structure of this application.

[0018] The components include: 1. Infusion bottle connector; 2. Saline bottle connector; 3. Stop clamp A; 4. Infusion set vent pipe; 5. Monitoring channel vent pipe; 6. Stop clamp B; 7. Pressure measuring tube; 8. Scale; 9. Central venous catheter positive pressure connection connector; 10. Pre-filling interface; 11. Central venous catheter stop clamp; 12. Central venous catheter; 13. Infusion drip rate adjustment switch. Detailed Implementation

[0019] The following will be combined with the appendix Figure 1 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] This utility model provides a device for manually measuring central venous pressure, such as... Figure 1 As shown, the device can be implemented as follows: The device has two channels: one is an infusion bottle connector 1 for connecting to an infusion bottle, and the other is a saline bottle connector 2 for connecting to a pressure-measuring saline solution. Both channels are vented. The other end of the device is a positive pressure connection connector 9 connected to a central venous catheter 12. In this device, the infusion bottle connector 1 and the saline bottle connector 2 form a Y-shaped connection structure. The lower end of the Y-shaped structure is equipped with a monitoring channel vent pipe 5. The lower end of the monitoring channel vent pipe 5 is a graduated pressure measuring tube 7, and the lower end of the pressure measuring tube 7 is equipped with a pre-filling interface 10. The lower end of the infusion bottle connector 1 is equipped with an infusion drip rate adjustment switch 13. The lower end of the saline bottle connector 2 is equipped with a water-stop clamp A3. The lower end of the monitoring channel vent pipe 5 is equipped with a water-stop clamp B6.

[0021] The operating procedure of this device is described below:

[0022] 1) This device has two channels, one for connecting to the infusion bottle and the other for connecting to the saline solution for pressure measurement. Both channels are vented. After successful venting, connect the infusion set to the positive pressure connector 9 of the central venous catheter and ensure that all channel clamps are closed.

[0023] 2) When the pressure measuring channel water stop clamp A3 is closed during infusion, open the infusion channel water stop clamp 4 and turn on the infusion drip rate adjustment switch 13 to adjust to the required number of drops.

[0024] 3) When pressure measurement is required, close the infusion channel switch 4, open the pressure measurement channel stop clamp A3, put in saline solution, flush the pipeline, and then close the stop clamp A3.

[0025] 4) Fix the "0" mark of the pressure measuring tube at the level of the right atrium, open the stopcock B6, keep the pressure measuring tube in a vertical position, allow air to enter the pressure measuring tube through the exhaust pipe 5 of the monitoring channel, and let the fluid level in the pressure measuring tube 7 fall freely until the fluid level is relatively stable. Read the scale to get the central venous pressure data.

[0026] 5) Clamp the central venous catheter stopper clip 11, connect the pre-filled interface 10 with a 10-20 ml syringe, close the stopper clip B6, open the stopper clip A3, aspirate normal saline with the syringe until all air is expelled, and close the stopper clip A3.

[0027] 6) Close the pre-charge interface 10, remove the empty needle, open the stop clamp 4, and adjust the infusion drip rate adjustment switch 13.

[0028] 7) Operation complete.

[0029] 8) This device must be replaced every 24 hours in accordance with the management requirements of infusion devices.

[0030] Advantages of this patent application:

[0031] 1. This device combines the functions of measuring central venous pressure and intravenous infusion therapy. It is economical and easy to operate. Anyone with central venous catheterization skills can use this device to measure central venous pressure.

[0032] 2. The entire process of measuring central venous pressure fully considers the needs of treatment and monitoring, while also taking into account hospital infection control requirements. There are no operations that would damage the airtightness of the infusion and monitoring system, and there is no pollution, reducing or avoiding the occurrence of bloodstream infections related to vascular catheters.

[0033] 3. Compared with traditional sensor monitoring methods, this device reduces the number of tubes on the patient, improving patient comfort; the device is lightweight, reducing traction on the central venous catheter, thereby reducing the risk of unplanned extubation.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A manual central venous pressure measuring device, characterized by; The manual measuring central venous pressure device is divided into two channels, one side is a infusion bottle connector (1) for connecting an infusion bottle, and the other side is a physiological saline bottle connector (2) for connecting physiological saline for pressure measurement, and both sides of the channels are exhausted; the other end of the device is a positive pressure connector (9) connected with a central venous catheter (12), the infusion bottle connector (1) and the physiological saline bottle connector (2) form a Y-shaped connection structure, the lower end of the Y-shaped connection structure is provided with a monitoring channel exhaust pipe (5), the lower end of the monitoring channel exhaust pipe (5) is provided with a water stop clamp B (6), the lower end of the monitoring channel exhaust pipe (5) is a pressure measuring tube (7) with a scale, and a pre-charging interface (10) is arranged at the lower end of the pressure measuring tube (7), and the lower end of the infusion bottle connector (1) is provided with an infusion drop speed adjusting switch (13); the lower end of the physiological saline bottle connector (2) is provided with a water stop clamp A (3).

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