CN110974411A - Hollow organ radio frequency ablation catheter probe - Google Patents
Hollow organ radio frequency ablation catheter probe Download PDFInfo
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- CN110974411A CN110974411A CN201911330001.1A CN201911330001A CN110974411A CN 110974411 A CN110974411 A CN 110974411A CN 201911330001 A CN201911330001 A CN 201911330001A CN 110974411 A CN110974411 A CN 110974411A
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- ablation catheter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1482—Probes or electrodes therefor having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
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Abstract
The invention provides a hollow organ radio frequency ablation catheter probe, comprising: the far end of the radio frequency ablation catheter is provided with an energy application device; the proximal end of the radiofrequency ablation catheter is provided with a shaft for transmitting the energy application device into the hollow organ; the shaft rod is provided with a tube drawing length mark which is arranged alternatively with different colors according to the length of the energy application device. The scale interval of the extubation length mark is consistent with the length of the energy application device. The invention is helpful for improving the operation accuracy of ablation treatment, thereby improving the treatment effect.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a hollow organ radio frequency ablation catheter probe.
Background
The radio frequency ablation technology is a minimally invasive technology which is widely applied to various focus tissues such as hearts, cancer tumors and the like in recent years, in the prior art, a radio frequency ablation treatment device with a heating function is generally adopted to directly act energy on the inner wall of a hollow organ, and the application of the energy causes collagen denaturation and contraction to reduce the diameter of the hollow organ and finally cause the hollow organ structure to be filled with fibrin, so that the closure of the hollow organ is achieved; the whole radio frequency ablation treatment device generally comprises two parts of a radio frequency generator and a radio frequency ablation catheter.
When the treatment device utilizes the radio frequency generator to generate and control radio frequency energy and the radio frequency energy acts on a hollow organ of a human body through the radio frequency ablation probe to treat, the radio frequency ablation catheter is generally delivered to the far end of the hollow organ to be treated, and the treatment purpose is achieved through ablation in specific time. Typically, the length of the hollow organ is greater than the length of the energy application device at the distal end of the catheter, thus requiring one treatment session, and the length of catheter pull needs to be less than the length of the energy application device when the catheter is pulled outward into the next treatment session. However, in the prior art, the length of the energy application device pulled each time is completely based on the experience and subjective feeling of doctors, so that the treatment effect cannot be guaranteed.
Disclosure of Invention
In view of the above problems, the present invention is directed to a hollow organ radiofrequency ablation catheter probe.
The purpose of the invention is realized by adopting the following technical scheme:
there is provided a hollow organ radiofrequency ablation catheter probe comprising: the far end of the radio frequency ablation catheter is provided with an energy application device; the proximal end of the radiofrequency ablation catheter is provided with a shaft for transmitting the energy application device into the hollow organ;
the shaft rod is provided with a tube drawing length mark which is arranged with alternate colors according to the length of the energy application device.
In one embodiment, the pitch of the scale of the extubation length indicator coincides with the length of the energy application device.
In one embodiment, the shaft rod is also provided with a positioning block; the positioning block is movable along the shaft for marking the starting position of each ablation.
In one embodiment, the proximal end of the radiofrequency ablation catheter is connected to a radiofrequency generation device.
In one embodiment, the shaft is further provided with a safety zone of action marker proximate the distal end of the energy application device, wherein the safety zone of action marker is spaced from the energy application device by a distance greater than or equal to a length of a sheath used to assist the energy application device in accessing the hollow organ.
In one embodiment, the energy application device comprises a radio frequency ablation probe formed from a wound wire.
The invention has the beneficial effects that: 1) the radio frequency catheter is provided with the tube drawing length mark, the length of which corresponds to that of the energy application device, of the shaft rod, so that after the radio frequency ablation catheter enters a hollow organ to finish treatment of a section of treatment area, a doctor can be helped to accurately grasp the distance for drawing the radio frequency ablation catheter, and the distance for drawing is accurately controlled to be equal to the length of the energy application device, so that no missing space exists between two adjacent sections of treatment areas, the operation precision is improved, and the treatment effect is improved; meanwhile, the overlapping position between two sections of treatment areas can be reduced, and the treatment efficiency can be improved.
2) The positioning block is arranged on the shaft rod and used for marking the initial position of each ablation, so that a doctor can be further helped to position the ablation treatment area and the distance of the drawing radio frequency ablation catheter, and the operation precision can be further improved.
3) When the radiofrequency ablation catheter enters a hollow organ, the radiofrequency ablation catheter is usually assisted to enter the hollow organ of a human body by virtue of the sheath, but in the drawing process, the energy application device is prevented from acting in the sheath due to drawing transition, so that adverse effects are brought; therefore, according to the length of the sheath, the safety action area identifier is arranged at the position which is away from the near-end edge of the energy application device and the length of the sheath, so that the condition that the radiofrequency ablation catheter acts on the inside of the sheath due to drawing transition can be reminded, and a doctor can accurately master the proper working length area of the radiofrequency ablation catheter.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a schematic structural view of a radio frequency ablation catheter of the present invention;
fig. 2 is a schematic structural view of a radiofrequency ablation catheter in accordance with another embodiment of the invention.
Reference numerals:
1-radiofrequency ablation catheter, 11-energy application device, 12-shaft rod, 13-positioning block, 14-safety action area identification.
Detailed Description
The invention is further described in connection with the following application scenarios.
Referring to fig. 1, there is shown a hollow organ radio frequency ablation catheter probe comprising: the radio frequency ablation catheter 1 is characterized in that the distal end of the radio frequency ablation catheter 1 is provided with an energy application device 11; the proximal end of the radiofrequency ablation catheter 1 is provided with a shaft 12 for transmitting the energy application device 11 into the hollow organ;
the shaft rod 12 is provided with a tube drawing length mark which is arranged according to the length of the energy application device 11 and has different colors, wherein the scale interval of the tube drawing length mark is consistent with the length of the energy application device 11.
In one embodiment, the distance between the two adjacent sections of the pipe drawing length identification scales is filled with different colors, wherein the length of one section of uniform color identification is equal to that of the energy application device, and the identification effect is good.
In one embodiment, the tube drawing length indicator is arranged in a black and white alternating mode.
According to the embodiment of the invention, the shaft lever is provided with the tube drawing length mark corresponding to the length of the energy application device, so that after the radiofrequency ablation catheter enters a hollow organ to complete treatment of a section of treatment area, a doctor can be helped to accurately grasp the distance for drawing the radiofrequency ablation catheter, and the drawn distance is accurately controlled to be equal to the length of the energy application device, so that no missing space exists between two adjacent sections of treatment areas, the operation precision is improved, and the treatment effect is improved; meanwhile, the overlapping position between two sections of treatment areas can be reduced, and the treatment efficiency can be improved.
In one embodiment, the shaft 12 is further mounted with a positioning block 13; positioning block 13 is movable along shaft 12 for marking the starting position of each ablation. The positioning block 13 is arranged on the shaft rod 12 and used for marking the starting position of each ablation, so that the doctor can be further helped to position the ablation treatment area and the distance for drawing the radio frequency ablation catheter 1, and the operation precision can be further improved.
In one embodiment, the proximal end of the radiofrequency ablation catheter 1 is provided with a connector for connection to a radiofrequency generation device, the distal end of the radiofrequency ablation catheter 1 is provided with an energy application device 11, and the shaft 12 is disposed proximally between the energy application device 11 and the radiofrequency generation device connector.
Referring to fig. 2, the shaft 12 is further provided with a safety-action-area indicator 14 near the distal end of the energy application device 11, wherein the safety-action-area indicator 14 is located at a distance from the energy application device 11 that is greater than or equal to the length of the sheath used to assist in the entry of the energy application device 11 into the hollow organ.
In one scenario, the safety action area indicator 14 is provided in a different color (e.g., blue) than the extubation length indicator.
When the radiofrequency ablation catheter enters a hollow organ, the radiofrequency ablation catheter is usually assisted to enter the hollow organ of a human body by virtue of the sheath, but in the drawing process, the energy application device is prevented from acting in the sheath due to drawing transition, so that adverse effects are brought; therefore, according to the length of the sheath, the safety action area identifier is arranged at the position which is away from the near-end edge of the energy application device and the length of the sheath, so that the condition that the radiofrequency ablation catheter acts on the inside of the sheath due to drawing transition can be reminded, and a doctor can accurately master the proper working length area of the radiofrequency ablation catheter.
In one embodiment, energy application device 11 comprises a radio frequency ablation probe formed from a wound wire.
Also, the energy application device 11 may be used with other configurations of the RF ablation probe that include a working region along the length thereof.
The hollow organ radio frequency ablation catheter probe provided by the invention has the following working process:
the energy application device end of the radiofrequency ablation catheter 1 is extended into the hollow organ, the radiofrequency ablation catheter is delivered to the far end of the hollow organ, ablation treatment is started, and after the radiofrequency ablation catheter reaches the designated far end, the positioning block is moved to the position abutting against the sheath tube to be marked on the radiofrequency ablation catheter in the external part of the body. The ablation is carried out at the far end for a specific time to achieve the purpose of treatment, after the treatment of the treatment area is finished, the radio frequency ablation catheter is pulled outwards for a distance of one grid (namely the length of the energy application device) according to the identification of the marking pole on the radio frequency ablation catheter, and the treatment is carried out in the next treatment area; the operations are repeated in sequence to finish the treatment of the hollow organ.
When the radiofrequency ablation catheter is pulled outwards, when a safety action area mark appears at an external entrance, namely the position of the sheath close to the energy application device is indicated, the energy application device is prevented from acting in the sheath, and further pulling and ablation are stopped.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be analyzed by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A hollow organ radiofrequency ablation catheter probe, comprising: a radiofrequency ablation catheter, the distal end of which is provided with an energy application device; the proximal end of the radiofrequency ablation catheter is provided with a shaft for transmitting the energy application device into a hollow organ;
the shaft rod is provided with a tube drawing length mark which is arranged at intervals with different colors according to the length of the energy application device.
2. The hollow organ radiofrequency ablation catheter probe of claim 1, wherein the scale pitch of the extubation length indicator is consistent with the length of the energy application device.
3. The hollow organ radiofrequency ablation catheter probe of claim 1, wherein a locating block is further mounted on the post; the positioning block can move along the mark post and is used for marking the starting position of each ablation.
4. The hollow organ radiofrequency ablation catheter probe of claim 1, wherein the proximal end of the radiofrequency ablation catheter is connected to a radiofrequency generation device.
5. The hollow organ radiofrequency ablation catheter probe of claim 1, wherein the post is further provided with a safety action area marker proximate to a distal end of an energy application device, wherein the safety action area marker is spaced from the energy application device by a distance greater than or equal to a length of a sheath used to assist the energy application device in entering the hollow organ.
6. The hollow organ radiofrequency ablation catheter probe of claim 1, wherein the energy application device comprises a radiofrequency ablation probe formed from a wire wrap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911330001.1A CN110974411B (en) | 2019-12-20 | 2019-12-20 | Hollow organ radio frequency ablation catheter probe |
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| CN201911330001.1A CN110974411B (en) | 2019-12-20 | 2019-12-20 | Hollow organ radio frequency ablation catheter probe |
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| CN110974411A true CN110974411A (en) | 2020-04-10 |
| CN110974411B CN110974411B (en) | 2021-11-30 |
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Citations (10)
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| US20050222557A1 (en) * | 1999-07-14 | 2005-10-06 | Cardiofocus, Inc. | Deflectable sheath catheters |
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| US20130204096A1 (en) * | 2012-02-03 | 2013-08-08 | Rui Xing Limited | Medical Device with a Deflectable Shaft Section and Tension Control |
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| CN204797987U (en) * | 2015-02-04 | 2015-11-25 | 黄冰生 | Can get into arrhythmia radio frequency that goes on treating in ventricle wall melts pipe |
| CN204890169U (en) * | 2015-06-28 | 2015-12-23 | 南京康友医疗科技有限公司 | Microwave or radio frequency of taking scale melt needle |
| CN107260297A (en) * | 2017-06-30 | 2017-10-20 | 上海微创电生理医疗科技股份有限公司 | A kind of radio frequency ablation catheter and radio frequency ablation system |
| CN107349010A (en) * | 2017-07-07 | 2017-11-17 | 昆山雷盛医疗科技有限公司 | Radio frequency ablation probe and preparation method thereof |
| CN110151305A (en) * | 2019-04-30 | 2019-08-23 | 昆山雷盛医疗科技有限公司 | Without scale hollow lumen radio frequency ablation probe |
| CN110169814A (en) * | 2019-06-28 | 2019-08-27 | 南京康友医疗科技有限公司 | Pilot pin, positioning device, positioning device and localization method |
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2019
- 2019-12-20 CN CN201911330001.1A patent/CN110974411B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050222557A1 (en) * | 1999-07-14 | 2005-10-06 | Cardiofocus, Inc. | Deflectable sheath catheters |
| CN202015255U (en) * | 2011-03-24 | 2011-10-26 | 孔凡瑚 | Cardiological radio-frequency ablation probe |
| US20130204096A1 (en) * | 2012-02-03 | 2013-08-08 | Rui Xing Limited | Medical Device with a Deflectable Shaft Section and Tension Control |
| CN103989521A (en) * | 2014-05-16 | 2014-08-20 | 上海微创电生理医疗科技有限公司 | Catheter ablation device and radiofrequency ablation catheter of catheter ablation device |
| CN204797987U (en) * | 2015-02-04 | 2015-11-25 | 黄冰生 | Can get into arrhythmia radio frequency that goes on treating in ventricle wall melts pipe |
| CN204890169U (en) * | 2015-06-28 | 2015-12-23 | 南京康友医疗科技有限公司 | Microwave or radio frequency of taking scale melt needle |
| CN107260297A (en) * | 2017-06-30 | 2017-10-20 | 上海微创电生理医疗科技股份有限公司 | A kind of radio frequency ablation catheter and radio frequency ablation system |
| CN107349010A (en) * | 2017-07-07 | 2017-11-17 | 昆山雷盛医疗科技有限公司 | Radio frequency ablation probe and preparation method thereof |
| CN110151305A (en) * | 2019-04-30 | 2019-08-23 | 昆山雷盛医疗科技有限公司 | Without scale hollow lumen radio frequency ablation probe |
| CN110169814A (en) * | 2019-06-28 | 2019-08-27 | 南京康友医疗科技有限公司 | Pilot pin, positioning device, positioning device and localization method |
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