Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-pressurizing cryoablation system

A self-pressurization and ablation catheter technology, which is applied in the direction of cooling surgical instruments, can solve the problems of large space and increase the difficulty of installation and operation of the cryoablation system, achieve long-lasting storage performance, avoid pressurization and adjustment difficulties, and have high controllability Effect

Pending Publication Date: 2019-06-21
CRYOFOCUS MEDTECH (SHANGHAI) CO LTD
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refrigerant in this patent comes from an external gas tank, and the installation of the external gas tank requires a large space, which increases the difficulty of installation and operation of the cryoablation system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-pressurizing cryoablation system
  • Self-pressurizing cryoablation system
  • Self-pressurizing cryoablation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , 2 As shown in and 3, the self-pressurized cryoablation system of the present invention includes a cryoablation device 1 and a cryoablation catheter 2, the cryoablation device 1 includes a housing 11, a control unit 12, a vacuum unit 13 and a delivery unit 14, the The conveying unit 14 includes a gas source manufacturing device 141, a gas path control device 142, a low temperature conversion device 143 and an equipment connection 144 connected in sequence, and the gas outlet of the equipment connection 144 and the vacuum unit 13 are respectively connected to the freezer. The ablation catheter 2 is in fluid communication, the low temperature conversion device 143 includes a Dewar bottle 1431 and a heat exchanger 1432, the gas source manufacturing device 141 is arranged in the Dewar bottle 1431, and the gas outlet of the gas source manufacturing device 141 end is in fluid communication with the intake end 1421 of the gas circuit control device 142, the ...

Embodiment 2

[0035] Such as Figure 4 , 5 As shown in and 6, this embodiment is based on the first embodiment, the difference of the first embodiment is only that the structure of the heat exchanger 1432 is different. Such as Figure 4 As shown, the heat exchanger 1432 is a spiral tube structure, which increases the heat exchange area between the gaseous coolant and the coolant in the Dewar 1431, and the spiral tube structure can effectively reduce the flow of the coolant in the heat exchanger 1432. flow resistance within; Figure 5 As shown, the heat exchanger 1432 is a horizontal serpentine tube structure, which increases the heat exchange area for energy exchange between the gaseous coolant and the liquid coolant in the Dewar bottle 1431, and can reduce the heat exchange rate of the heat exchanger in the Dewar bottle 1431 as much as possible. Inner space consumption, improve system compactness; such as Image 6 As shown, the heat exchanger 1432 is a vertical serpentine tube structur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a self-pressurizing cryoablation system, which comprises cryoablation equipment and a cryoablation catheter, wherein the cryoablation equipment comprises a control unit, a vacuum unit and a delivery unit; the delivery unit comprises an air source manufacturing device, an air path control device, a low-temperature conversion device and an equipment connecting piece which are sequentially connected; the air outlet end and the vacuum unit of the equipment connecting piece are communicated with the cryoablation catheter; the low-temperature conversion device comprises a dewar bottle and a heat exchanger; the air source manufacturing device is arranged in the dewar bottle; the air outlet end of the air source manufacturing device is communicated with the air inlet end of the air path control device; the air source manufacturing device comprises a coolant storage tank, a pressure relief valve communicated with the coolant storage tank, a coolant supplement joint communicated with the coolant storage tank and a heating device arranged in the coolant storage tank; and the control unit is electrically connected with the vacuum unit, the heating device and the air path control device. The large and heavy pressurized air tank without external connector is helpful to save the space of cryoablation equipment.

Description

technical field [0001] The invention relates to the field of cryoablation, in particular to a self-pressurized cryoablation system. Background technique [0002] Cryosurgical treatment is the use of extremely low temperatures and a complex system designed to properly freeze the target biological tissue to be treated. Many of these systems use working fluid from external high-pressure gas tanks connected to the cryoablation catheter through long flexible delivery tubing. These tanks usually have a large internal volume to hold enough working fluid to ensure a typical Cryosurgery procedure. Gas tanks are usually made of steel with very thick walls, which can meet the requirements of high pressure resistance, but at the same time make the gas tanks very bulky. Due to the large size and high pressure required, pressurized gas tanks are generally placed in the freezer The exterior of the ablation unit complicates installation and operation of the system. [0003] The Chinese p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61B18/02
Inventor 刁月鹏赵奎文姚佳陈陈熙
Owner CRYOFOCUS MEDTECH (SHANGHAI) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com