Invasive blood pressure monitoring catheter capable of being exchanged quickly

An invasive blood pressure and catheter technology, applied in the direction of catheters, cardiac catheters, etc., can solve the problems of inconvenient repeated operations, poor hydrophilic effect of catheters, complicated operation, etc., and achieve the effect of preventing scratches on blood vessels and excellent hydrophilic performance

Inactive Publication Date: 2021-04-09
THE FIRST PEOPLES HOSPITAL OF CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the guide wire channel is abandoned, and the catheter loses the guide wire guidance. During the monitoring process, the catheter can only be withdrawn to measure the blood pressure at different points. To re-enter the catheter, the guide wire needs to be taken again to guide the designated site.
Or after entering the dual guide wires in the catheter, withdraw the catheter, and then select one of the guide wires to enter, and perform pressure measurement in the same way, but still need to lose one guide wire, the operation is more complicated, and it is not easy to repeat the operation
Moreover, the traditional catheter has poor hydrophilic effect, which is not conducive to distorting the lumen of the diseased blood vessel, and the stimulated blood vessel is likely to cause spasm and stenosis

Method used

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  • Invasive blood pressure monitoring catheter capable of being exchanged quickly
  • Invasive blood pressure monitoring catheter capable of being exchanged quickly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 with figure 2 Shown, a rapidly exchangeable invasive blood pressure monitoring catheter comprising:

[0050] Catheter body 1, the bottom of the catheter body 1 is provided with a guide wire channel 11, the bottom of the catheter body 1 is provided with a guide wire side hole 13 communicating with the guide wire channel 11, the top of the catheter body 1 A pressure measuring side hole 12 is provided, and the guide wire side hole 13 is nine to ten centimeters away from the left end of the catheter main body 1. The right end of the catheter main body 1 is integrally formed with a connecting pipe 14, and one side of the connecting pipe 14 A branch pipe 141 is installed through the control valve 142, the branch pipe 141, the connecting pipe 14 and the conduit main body 1 form a Y-shaped structure, and the inner wall of the connecting pipe 14 is provided with an internal thread;

[0051] A reinforcing rod core 2 is plugged into the inside of the catheter m...

Embodiment 2

[0064] The difference from Example 1 is that the outer wall of the catheter body 1 is provided with a hydrophilic coating, and the hydrophilic coating is prepared by the following method:

[0065] Take the following raw materials and weigh them by weight: 2 parts of chitosan, 2 parts of polyvinyl alcohol, 2 parts of polyacrylamide, 3 parts of polyacrylic acid, 2 parts of 2-methacryloyloxyethyltrimethylammonium chloride , 2 parts of polyethylene glycol dimethacrylate, 2 parts of water-based acrylic emulsion, 2 parts of sodium methyl silicate, 2 parts of butyl glycol ether, 10 parts of silicone defoamer, 20 parts of bentonite binder, 100 parts of deionized water;

[0066] S1. Prepare materials: first weigh the above raw materials;

[0067] S2. Primary mixing: first add deionized water into the digital constant temperature magnetic stirrer, then pour chitosan, polyvinyl alcohol, polyacrylamide, polyacrylic acid, 2-methacryloyloxyethyl trimethyl ammonium chloride, the stirrer ro...

Embodiment 3

[0075] The difference with embodiment 2 is the preparation of hydrophilic coating, and its specific preparation method is as follows:

[0076] Take the following raw materials and weigh them by weight: 6 parts of chitosan, 6 parts of polyvinyl alcohol, 6 parts of polyacrylamide, 7 parts of polyacrylic acid, 6 parts of 2-methacryloyloxyethyltrimethylammonium chloride , 6 parts of polyethylene glycol dimethacrylate, 6 parts of water-based acrylic emulsion, 6 parts of sodium methyl silicate, 7 parts of ethylene glycol butyl ether, 10 parts of silicone defoamer, 20 parts of bentonite binder, 100 parts of deionized water;

[0077] S1. Prepare materials: first weigh the above raw materials;

[0078] S2. Primary mixing: first add deionized water into the digital constant temperature magnetic stirrer, then pour chitosan, polyvinyl alcohol, polyacrylamide, polyacrylic acid, 2-methacryloyloxyethyl trimethyl ammonium chloride, the stirrer rotating speed was at 135r / min, and the tempera...

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Abstract

The invention discloses an invasive blood pressure monitoring catheter capable of being exchanged quickly. The invasive blood pressure monitoring catheter comprises a catheter main body, and a pressure extension pipe, wherein a guide wire channel is formed in the bottom of the catheter main body, a guide wire side hole communicating with the guide wire channel is formed in the bottom of the catheter main body, and a pressure measuring side hole is formed in the top of the catheter main body; a reinforcing rod core is inserted into the catheter main body; and a first tee joint and a second tee joint are respectively mounted at the left end and the right end of the pressure extension pipe. According to the invention, the pressure extension pipe, a transducer and an electrocardiogram monitoring and pressure measuring device can be connected without withdrawing a guide wire, and the pushing and supporting force of the catheter main body is increased by the reinforcing rod core. The hard pressure extension pipe reduces influence of an elastic pipe wall on pressure measurement, and facilitates separate operation of a sterile area and a bacterial area in an operation. A Y-shaped side opening in the tail part of the catheter can be used for real-time radiography and knowing the form of a blood vessel. The catheter main body is excellent in hydrophilic performance, catheter friction force can be remarkably reduced, and stimulation and damage of the catheter main body to blood vessels are reduced.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a rapidly exchangeable invasive blood pressure monitoring catheter. Background technique [0002] 1. About the application of invasive blood pressure monitoring catheter: [0003] Place the catheter in the target blood vessel at the measured site, and the outer end of the catheter is directly connected to the pressure sensor. The fluid has the function of pressure transmission, and the pressure in the blood vessel is transmitted to the external pressure sensor through the liquid in the catheter to obtain real-time pressure in the blood vessel. The changing dynamic waveform, through calculation, obtains the systolic pressure, diastolic pressure and mean pressure of the measured arterial blood vessel, or the venous pressure. [0004] This design is mainly used for real-time monitoring of the pressure of the target artery or vein during endovascular interventional therapy...

Claims

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Application Information

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IPC IPC(8): A61B5/0215
CPCA61B5/0215
Inventor 顾黎军
Owner THE FIRST PEOPLES HOSPITAL OF CHANGZHOU
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