CN113081246A - Ablation catheter and radio frequency catheter system - Google Patents
Ablation catheter and radio frequency catheter system Download PDFInfo
- Publication number
- CN113081246A CN113081246A CN202110345631.7A CN202110345631A CN113081246A CN 113081246 A CN113081246 A CN 113081246A CN 202110345631 A CN202110345631 A CN 202110345631A CN 113081246 A CN113081246 A CN 113081246A
- Authority
- CN
- China
- Prior art keywords
- balloon
- ablation catheter
- radio frequency
- catheter
- ablation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
-
- 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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00404—Blood vessels other than those in or around the heart
- A61B2018/0041—Removal of thrombosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
- A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Child & Adolescent Psychology (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the technical field of medical instruments, in particular to an ablation catheter and a radio frequency catheter system. An ablation catheter comprises a catheter body, a first balloon, a second balloon and an electrode group; the first balloon and the second balloon are connected with the tube body and are distributed at intervals; the electrode group is connected with the first balloon or the second balloon; when the first balloon and the second balloon are both in an expanded state and are in contact with the inner wall of the blood vessel, the first balloon, the second balloon and the inner wall of the blood vessel form an ablation area containing calcified tissues together. The ablation catheter is simple in structure and convenient to use, and can avoid the fact that calcified tissues in a free state in blood vessels threaten the health of people.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an ablation catheter and a radio frequency catheter system.
Background
Vascular calcification can lead to problems of reduced vessel wall compliance, increased stiffness, increased risk of plaque rupture, and thrombosis, which ultimately contribute to a range of cardiovascular diseases. If the calcium deposits in the blood vessels cannot be taken out of the blood vessels of the human body, the calcium deposits in the blood vessels are caused to flow to the heart and other parts of the human body along with the blood, and finally the health of the human body is threatened.
In recent years, for calcium deposition in blood vessels, it is common to insert a catheter provided with a balloon into a blood vessel by means of a small procedure, inflate the balloon when it reaches the calcium deposition site, and work with electrodes disposed in the balloon to release a high voltage pulse, thereby forming a shock wave that propagates through the fluid and strikes the balloon wall and calcified areas to destroy the calcium deposition with the repeated pulse. However, under the shock wave, the calcified tissues are broken and dissociated in the blood vessels in the high-voltage pulse mode, and cannot be removed, so that the risk is easily brought to the health of people.
Disclosure of Invention
The object of the present invention includes, for example, providing an ablation catheter and a radio frequency catheter system, which are simple in structure and convenient to use, and can be used for guiding the calcified tissue in a free state in a blood vessel to move in the blood vessel, so as to facilitate the collection of the calcified tissue in a free state in the blood vessel, and further, can avoid the calcified tissue in a free state in the blood vessel from bringing threat to the human health.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides an ablation catheter, which includes a catheter body, a first balloon, a second balloon and an electrode assembly;
the first balloon and the second balloon are connected with the tube body and are distributed at intervals; the electrode group is connected with the first balloon or the second balloon;
when the first balloon and the second balloon are both in an expanded state and are in contact with the inner wall of the blood vessel, the first balloon, the second balloon and the inner wall of the blood vessel form an ablation area containing calcified tissues together.
In an alternative embodiment, the first balloon and the second balloon are sequentially disposed along a direction from the distal end to the proximal end of the tube.
In an alternative embodiment, the electrode set is coupled to the second balloon.
In an alternative embodiment, the ablation catheter further comprises a guidewire containment tube for electrically connecting the electrode assembly to an external radiofrequency meter.
In an alternative embodiment, the wire containment tube includes a first section and a second section, the first section being electrically connected to the second section;
the first segment is used for being electrically connected with the electrode group and is coated on the tube body; the second section is used for being electrically connected with a radio frequency instrument.
In an alternative embodiment, the electrode set comprises a plurality of radio frequency electrodes;
the radio-frequency electrodes are uniformly distributed on the peripheral surface of the first balloon or the second balloon at intervals in the axial direction of the tube body.
In an alternative embodiment, the electrode set includes four radio frequency electrodes.
In alternative embodiments, the radio frequency electrode is a copper wire electrode, a gold wire electrode, or a copper-coated gold wire electrode.
In an alternative embodiment, the tube includes first and second air passages in communication with the first and second balloons, respectively.
In a second aspect, the present invention provides a radio frequency catheter system, which includes a radio frequency instrument, a guide tube and the ablation catheter;
the radio frequency instrument is electrically connected with the electrode group and is used for emitting radio frequency to peel off the calcified tissues in the ablation area from the inner wall of the blood vessel;
the first balloon or the second balloon is used for guiding the calcified tissue in a free state to move to the guide tube under the action of external force; the guide tube is used to collect calcified tissue.
The embodiment of the invention has the beneficial effects that:
the ablation catheter comprises a catheter body, a first balloon, a second balloon and an electrode group; the first balloon and the second balloon are connected with the tube body and are distributed at intervals; the electrode group is connected with the first balloon or the second balloon; since the first balloon and the second balloon are spaced apart from each other, when the first balloon and the second balloon are both in the inflated state and are in contact with the inner wall of the blood vessel, the first balloon, the second balloon and the inner wall of the blood vessel can jointly form an ablation region for accommodating calcified tissues at the space between the first balloon and the second balloon.
Therefore, the ablation area can hold the calcified tissue, when the calcified tissue in the ablation area is separated from the inside of the blood vessel under the action of radio frequency and is in a free state in the blood vessel, the first balloon and the second balloon can play a role in limiting the motion of the calcified tissue in the free state, so that the calcified tissue can be limited in the ablation area, and the calcified tissue in the free state in the ablation area is driven to move in the process of moving the ablation catheter relative to the blood vessel, so that the calcified tissue in the free state is guided to move to the guide pipe for collecting the calcified tissue.
In conclusion, the ablation catheter is simple in structure and convenient to use, and can be used for guiding the calcified tissues in the free state in the blood vessel to move in the blood vessel, so that the calcified tissues in the free state in the blood vessel can be collected conveniently, and further the fact that the calcified tissues in the free state in the blood vessel pose a threat to the health of people can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of an RF catheter system in accordance with an embodiment of the present invention;
fig. 2 is a schematic structural view of a second balloon in an embodiment of the invention.
Icon: 100-a radio frequency catheter system; 110-a radio frequency instrument; 120-an ablation catheter; 121-a tube body; 122-a first balloon; 123-a second balloon; 124-electrode group; 125-wire closed tube; 126-first segment; 127-a second section; 128-radio frequency electrodes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 shows a structure of a radio frequency catheter system in an embodiment of the invention, and fig. 2 shows a structure of a second balloon in an embodiment of the invention; it is noted that both the first balloon and the second balloon are shown in fig. 1 in an inflated state;
the present embodiment provides a radio frequency catheter system 100, the radio frequency catheter system 100 includes a radiofrequency instrument 110, a guide catheter, and an ablation catheter 120;
the ablation catheter 120 includes a tube 121, a first balloon 122, a second balloon 123, and an electrode set 124; the first balloon 122 and the second balloon 123 are connected with the tube body 121 and are distributed at intervals; the electrode group 124 is connected with the first balloon 122 or the second balloon 123; when the first balloon 122 and the second balloon 123 are both in an inflated state and are in contact with the inner wall of the blood vessel, the first balloon 122, the second balloon 123 and the inner wall of the blood vessel together form an ablation region for accommodating calcified tissues.
The radiofrequency instrument 110 is electrically connected with the electrode set 124 and is used for emitting radiofrequency to peel off the calcified tissue in the ablation area from the inner wall of the blood vessel;
the first balloon 122 or the second balloon 123 is used for guiding the calcified tissue in a free state to move towards the guide tube under the action of external force; the guide tube is used to collect calcified tissue.
Referring to fig. 1 and 2, the working principle of the rf catheter system 100 is:
the radiofrequency catheter system 100 includes a radiofrequency meter 110, a guide catheter, and an ablation catheter 120; since the first balloon 122 and the second balloon 123 have a gap therebetween, when the first balloon 122 and the second balloon 123 are both in an inflated state and are in contact with the inner wall of the blood vessel, an ablation region containing calcified tissue can be formed at the gap between the first balloon 122 and the second balloon 123 by the first balloon 122, the second balloon 123 and the inner wall of the blood vessel;
the radiofrequency instrument 110 is electrically connected with the electrode group 124, so that when the radiofrequency instrument 110 works and emits radiofrequency through the electrode group 124, calcified tissues in the ablation area can be peeled off from the inner wall of the blood vessel;
therefore, the ablation region can accommodate the calcified tissue, and when the calcified tissue in the ablation region is separated from the inside of the blood vessel under the action of radio frequency and is in a free state in the blood vessel, the first balloon 122 and the second balloon 123 can play a role in limiting the movement of the calcified tissue in the free state, so that the calcified tissue can be limited in the ablation region, and in the process that the ablation catheter 120 moves relative to the blood vessel, the calcified tissue in the free state in the ablation region is driven to move, so that the calcified tissue in the free state is guided to move to the guide pipe for collecting the calcified tissue.
In summary, the radiofrequency catheter system 100 has a simple structure and is convenient to use, and can guide the calcified tissue in a free state in the blood vessel to move in the blood vessel through the ablation catheter 120, and collect the calcified tissue in a free state in the blood vessel through the guide tube, so that the calcified tissue in a free state in the blood vessel can be prevented from threatening the health of people.
Further, referring to fig. 1 and 2, in the present embodiment, when the first balloon 122 and the second balloon 123 are disposed, since the ablation catheter 120 needs to guide the calcified tissue in a free state in the blood vessel to move in the blood vessel, when the first balloon 122 and the second balloon 123 are disposed, the first balloon 122 and the second balloon 123 can be sequentially disposed along the direction from the distal end to the proximal end of the tube 121. And the electrode set 124 is connected to the second balloon 123.
Further, referring to fig. 1 and fig. 2, in the present embodiment, in order to enable the electrode set 124 to be electrically connected to the radiofrequency meter 110, the ablation catheter 120 further includes a wire attaching tube 125, and the wire attaching tube 125 is used to electrically connect the electrode set 124 to the external radiofrequency meter 110. Specifically, when the guide wire closing tube 125 is disposed, since the radiofrequency device 110 is located outside the human body and the ablation catheter 120 needs to be inserted into a blood vessel of the human body, the guide wire closing tube 125 includes a first section 126 and a second section 127, and the first section 126 is electrically connected to the second section 127; the first segment 126 is electrically connected to the electrode set 124 and covers the tube 121; the second section 127 is for electrical connection with the radiofrequency meter 110. Thus, the intravascular electrode set 124 can be readily electrically connected to the radio frequency meter 110 located outside the human body.
In this embodiment, when configuring the electrode set 124, the electrode set 124 may include a plurality of rf electrodes 128, and the rf electrodes 128 may be copper wires, gold wires, or copper-clad gold wires; and the plurality of rf electrodes 128 are uniformly distributed around the outer circumferential surface of the first balloon 122 or the second balloon 123 at intervals in the axial direction of the tube body 121, so that the rf capacity is uniform in the axial direction of the tube body 121. It should be noted that, in the present embodiment, the electrode set 124 includes four rf electrodes 128.
Further, referring to fig. 1 and 2, in the present embodiment, in order to control the inflation states of the first balloon 122 and the second balloon 123, the tube 121 may include a first air passage and a second air passage, and the first air passage and the second air passage are respectively communicated with the first balloon 122 and the second balloon 123. Accordingly, the intake state of the first balloon 122 and the second balloon 123 can be adjusted by the first air passage and the second air passage, respectively, and the first balloon 122 and the second balloon 123 can be brought into a deflated state or an inflated state.
When guiding the calcified tissue in a free state in the blood vessel, the ablation catheter 120 may guide the calcified tissue to move in the blood vessel by abutting the calcified tissue against one or more of the first balloon 122 and the second balloon 123. As can be seen from the above, when the first balloon 122 and the second balloon 123 are disposed, the first balloon 122 and the second balloon 123 are sequentially disposed along the direction from the distal end to the proximal end of the tube 121, the electrode group 124 is connected to the second balloon 123, and the guide tube is relatively located at the proximal end of the ablation catheter 120; therefore, when guiding the movement of the calcified tissue in a free state in the blood vessel, the air intake state of the second balloon 123 can be adjusted through the second air passage to be in a contracted state, and when the ablation catheter 120 moves to the proximal end of the ablation catheter itself along the blood vessel, the movement of the calcified tissue in a free state in the blood vessel can be guided through the first balloon 122.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An ablation catheter, characterized by:
the ablation catheter comprises a catheter body, a first balloon, a second balloon and an electrode group;
the first balloon and the second balloon are connected with the tube body and are distributed at intervals; the electrode set is connected with the first balloon or the second balloon;
wherein when the first balloon and the second balloon are both in an inflated state and are in contact with the inner wall of the blood vessel, the first balloon, the second balloon and the inner wall of the blood vessel together form an ablation region containing calcified tissue.
2. The ablation catheter of claim 1, wherein:
the first balloon and the second balloon are sequentially arranged along the direction from the far end to the near end of the tube body.
3. The ablation catheter of claim 2, wherein:
the electrode set is connected with the second balloon.
4. The ablation catheter of claim 1, wherein:
the ablation catheter further comprises a lead-sealing tube for electrically connecting the electrode assembly with an external radiofrequency meter.
5. The ablation catheter of claim 4, wherein:
the lead closing tube comprises a first section and a second section, and the first section is electrically connected with the second section;
the first segment is used for being electrically connected with the electrode group and is wrapped on the tube body; the second section is used for being electrically connected with the radio frequency instrument.
6. The ablation catheter of any of claims 1-5, wherein:
the electrode set comprises a plurality of radio frequency electrodes;
the radio-frequency electrodes are uniformly distributed on the outer peripheral surface of the first balloon or the second balloon at intervals around the axis direction of the tube body.
7. The ablation catheter of claim 6, wherein:
the electrode group comprises four radio frequency electrodes.
8. The ablation catheter of claim 6, wherein:
the radio frequency electrode is a copper electrode wire, a gold electrode wire or a copper-coated gold electrode wire.
9. The ablation catheter of any of claims 1-5, wherein:
the tube body comprises a first air passage and a second air passage, and the first air passage and the second air passage are respectively communicated with the first balloon and the second balloon.
10. A radio frequency catheter system, characterized by:
the radiofrequency catheter system comprises a radiofrequency instrument, a guide tube and an ablation catheter according to any one of claims 1-9;
the radio frequency instrument is electrically connected with the electrode group and is used for emitting radio frequency to peel off calcified tissues in the ablation area from the inner wall of the blood vessel;
the first balloon or the second balloon is used for guiding the calcified tissue in a free state to move towards the guide tube under the action of external force; the guide tube is used for collecting calcified tissues.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345631.7A CN113081246B (en) | 2021-03-31 | 2021-03-31 | Radio frequency catheter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345631.7A CN113081246B (en) | 2021-03-31 | 2021-03-31 | Radio frequency catheter system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113081246A true CN113081246A (en) | 2021-07-09 |
| CN113081246B CN113081246B (en) | 2022-05-10 |
Family
ID=76671345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110345631.7A Active CN113081246B (en) | 2021-03-31 | 2021-03-31 | Radio frequency catheter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113081246B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100016862A1 (en) * | 2008-07-16 | 2010-01-21 | Daniel Hawkins | Method of providing embolic protection and shockwave angioplasty therapy to a vessel |
| CN102940524A (en) * | 2012-10-17 | 2013-02-27 | 上海安通医疗科技有限公司 | Balloon dilation-type multi-electrode radio-frequency ablation catheter |
| CN106725838A (en) * | 2016-02-11 | 2017-05-31 | 上海魅丽纬叶医疗科技有限公司 | Have the conduit and its ablation method of balloon expandable and RF ablation function concurrently |
| CN109925049A (en) * | 2017-12-19 | 2019-06-25 | 上海微创医疗器械（集团）有限公司 | Radio frequency ablation catheter and radio frequency ablation system |
| US20200129742A1 (en) * | 2018-10-25 | 2020-04-30 | Medtronic Vascular, Inc. | Cavitation catheter |
-
2021
- 2021-03-31 CN CN202110345631.7A patent/CN113081246B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100016862A1 (en) * | 2008-07-16 | 2010-01-21 | Daniel Hawkins | Method of providing embolic protection and shockwave angioplasty therapy to a vessel |
| CN102940524A (en) * | 2012-10-17 | 2013-02-27 | 上海安通医疗科技有限公司 | Balloon dilation-type multi-electrode radio-frequency ablation catheter |
| CN106725838A (en) * | 2016-02-11 | 2017-05-31 | 上海魅丽纬叶医疗科技有限公司 | Have the conduit and its ablation method of balloon expandable and RF ablation function concurrently |
| CN109925049A (en) * | 2017-12-19 | 2019-06-25 | 上海微创医疗器械（集团）有限公司 | Radio frequency ablation catheter and radio frequency ablation system |
| US20200129742A1 (en) * | 2018-10-25 | 2020-04-30 | Medtronic Vascular, Inc. | Cavitation catheter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113081246B (en) | 2022-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7461332B2 (en) | Catheter Sensing and Irrigation | |
| US11878095B2 (en) | Balloon catheter with high articulation | |
| EP3378427B1 (en) | Catheter with deformable distal electrode | |
| EP1737371B1 (en) | Ablation devices with sensor structures | |
| US5891027A (en) | Cardiovascular catheter system with an inflatable soft tip | |
| CN108209986B (en) | Expandable catheter assembly with flexible printed circuit board | |
| JP3370093B2 (en) | Multiple intravascular electrical activity detector | |
| JP4503254B2 (en) | Catheter and method for mapping Purkinje fibers | |
| CN113853175A (en) | Electrode configuration for arrhythmia diagnosis | |
| CN213030820U (en) | Electrophysiology mapping equipment | |
| CN115530923A (en) | Lumen opening instrument and lumen opening system | |
| CN113081246B (en) | Radio frequency catheter system | |
| CN114831723A (en) | Medical catheter | |
| WO2014179471A2 (en) | Reverse loop ablation device | |
| US20230405268A1 (en) | Intravascular lithotripsy catheter | |
| CN215651494U (en) | Medical catheter | |
| US20230218309A1 (en) | Adapter for an electrical modular catheter system | |
| CN116392199A (en) | Shock wave balloon catheter and feedback system thereof | |
| CN113081233A (en) | Lasso catheter with balloon | |
| JPH06315537A (en) | Catheter with shape deforming mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |