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Expansion type cardiovascular piezometry catheter

A cardiovascular and inflatable technology, applied in the field of inflatable cardiovascular pressure measurement catheters, can solve the problems that pressure measurement methods and devices cannot be accurately positioned, affect measurement, and easily be blocked by blood flow, etc., and achieve excellent resistance to organic solvents, The effect of accurate pressure value, no increase in operation time and steps

Inactive Publication Date: 2013-09-11
陈绍良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application provides an expandable cardiovascular pressure measurement catheter, which solves the technical problems in the existing pressure measurement methods and devices that the blood vessels that need to be measured cannot be accurately positioned, are easily blocked, and the blood flow force will affect the measurement.

Method used

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  • Expansion type cardiovascular piezometry catheter
  • Expansion type cardiovascular piezometry catheter
  • Expansion type cardiovascular piezometry catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 2:

[0024] An expandable cardiovascular pressure measurement catheter, 90 cm long, the outer diameter of the catheter body 1 is 2 cm, the catheter body 1 is a hollow double-layer ribbed shell, wherein the outer layer is a polyurethane layer 5, and the inner layer is a Teflon layer 6. The center of the catheter body 1 is a continuous cavity. One end of the catheter body 1 is provided with a conical opening with a diameter of 1mm. The other end of the catheter body 1 is provided with an inflation interface 4, and the inflation interface 4 is provided with a valve 8. The inflation airbag 2 and the inflation interface 4 are arranged on the polyurethane layer 5, the inflation interface 4 and the inflation airbag 2 are connected between the polyurethane layer 5 and the Teflon layer 6, and the inflation airbag 2 is arranged on the catheter body 1 at a distance of 1.5mm from the tapered mouth At the tube body, the expansion air bag 2 adopts a single-layer thin-wall des...

Embodiment 2

[0026] Embodiment 3:

[0027] An expandable cardiovascular pressure measurement catheter, 90 cm long, the outer diameter of the catheter body 1 is 2 cm, a tapered mouth is provided at one end of the catheter body 1, the diameter of the tapered mouth is 1 mm, and an inflation interface 4 is provided on the other end of the catheter body 1 , the inflation interface 4 is provided with a valve 8, and the expansion air bag 2 is arranged on the tube body of the catheter body 1 at a distance of 1.5mm from the tapered mouth. The inflatable interface 4 is directly connected to the tube body, the inflatable air bag 2 adopts a single-layer thin-wall design, and the diameter is 0.5-5mm after injecting air, and the center of the catheter body 1 is a continuous cavity.

Embodiment 3

[0029] Embodiment 4:

[0030] An expandable cardiovascular pressure measurement catheter, 90 cm long, the outer diameter of the catheter body 1 is 2 cm, the center of the catheter body 1 is a continuous cavity, and a 0.018-inch guide wire is provided inside, and a tapered tube is provided at one end of the catheter body 1 The diameter of the tapered mouth is 1 mm. The other end of the catheter body 1 is provided with an inflation interface 4, and the inflation interface 4 is provided with a valve 8. The body of the catheter body 1 is provided with a storage space 7 for the expansion air bag 2, and the expansion air bag 2 is located on the Catheter body 1 is 1.5mm away from the tapered mouth of the tube body, and the cavity of the expansion air bag 2 is directly connected with the inflation interface 4 on the body of the catheter body 1. The expansion air bag 2 adopts a single-layer thin-wall design, and the diameter after injecting air is 0.5-5mm .

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Abstract

An expansion type cardiovascular piezometry catheter comprises a catheter body and an expansion sac, one end of the catheter body is provided with a conical port, and the other end of catheter body is provided with an inflating connector, the expansion sac is arranged on the body of one end of the catheter body close to the conical port, and the inflating connector is communicated with the expansion sac. No bubbles are generated in the catheter, resonance and attenuation are not caused during monitoring, and occlusion caused by blood clotting during monitoring can be well avoided. Monitoring results are accurate, and accurate pressure values can be obtained without time delay and extra steps. Besides, the expansion type cardiovascular piezometry catheter is resistant to alkali and acid corrosion, has the advantages of excellent organic solvent resistance, is non-toxic and pollution-free and can be widely used to substitute for existing materials on and on.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an inflatable cardiovascular pressure measuring catheter. Background technique [0002] In recent years, with the continuous improvement of the manufacturing, inspection methods and equipment of cardiac catheterization, this clinical application technology has gradually developed and improved, which has improved the diagnosis and treatment of cardiovascular diseases, promoted the development of cardiac surgery and heart surgery, and greatly Reduce the risk of cardiac catheterization and treatment. [0003] Cardiac catheterization will be a special X-ray-opaque catheter with a certain degree of toughness, which will be sent to the designated parts of the heart and great vessels through peripheral blood vessels. According to the route of the cardiac catheterization, the pressure and Blood oxygen content is used to calculate cardiac output, shunt flow and blood flow resistance, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0215
Inventor 陈绍良
Owner 陈绍良
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