CN103536356A - Guiding catheter with anti-electromagnetic-interference function - Google Patents
Guiding catheter with anti-electromagnetic-interference function Download PDFInfo
- Publication number
- CN103536356A CN103536356A CN201310522732.2A CN201310522732A CN103536356A CN 103536356 A CN103536356 A CN 103536356A CN 201310522732 A CN201310522732 A CN 201310522732A CN 103536356 A CN103536356 A CN 103536356A
- Authority
- CN
- China
- Prior art keywords
- guiding catheter
- joint
- remote interface
- gauze screen
- ground connection
- 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
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a guiding catheter with an anti-electromagnetic-interference function. The guiding catheter comprises a cylindrical hollow tube body, a port is formed in the front end of the tube body, a remote interface is formed in the remote end of the tube body, the tube body and the remote interface comprise a shielding net woven through a conducting material, the conducting material is laid crosswise along the wall of the tube body to form a closed annular shielding net, and the shielding net is led out at the remote end interface to form a joint which can be grounded in different modes. According to the guiding catheter, the shielding net is arranged in the tube body and has an electromagnetic shielding effect on an internal ablation catheter, so that interference of the environment electromagnetic wave to the ablation catheter is reduced or eliminated. When the guiding catheter is applied to heart and renal artery ablation operations, effects of the environment electromagnetic field on monitoring signals of the ablation catheters can be resisted, and the accuracy and the sensibility for measuring of electrophysiological signals are improved.
Description
Technical field
The present invention relates to a kind of guiding catheter, more specifically relate to a kind of guiding catheter with anti-electromagnetic interference function, belong to technical field of medical instruments.
Background technology
In radio-frequency (RF) ablation operation, particularly in the neural ablative surgery of renal artery and heart electrocardio ablative surgery, and in neural intervene operation, all need in the preoperative, in art and the postoperative tissue to heart or renal artery zone of ablation, and nervous tissue carries out electrophysiologic monitoring.
Because electricity physiological signal is all very faint, difference is also very trickle, if be subject to the interference of environment of electric field field signal, can cause detecting instrument cannot monitor out these trickle change and fluctuations, therefore, the capacity of resisting disturbance of monitoring system is the accurate and responsive important guarantee of monitoring result.
When carrying out the neural ablative surgery of heart and renal artery, because the required ablation catheter of operation is long, during work, ablation catheter must enter in heart or renal artery along vascular access from external, and the circuit of monitoring is also long, and the degree being therefore disturbed is also further obvious.
Generally, by design gauze screen on the outer wall of ablation catheter, reduce environmental electromagnetic wave to detecting the interference of electricity physiological signal.But this way can increase the overall dimensions of ablation catheter, the enlarged meeting of ablation catheter external diameter increases patient's damage, and cannot implement ablative surgery for the less patient of blood vessel.
During ablation catheter work, need under the assistance of guiding catheter, set up from external to heart or arteriorenal passage, and the major part of ablation catheter is retained in guiding catheter inside,, in ablation, guiding catheter surrounds on the outer wall of ablation catheter, therefore, if a kind of guiding catheter with anti-electromagnetic interference function can be provided, to not only can eliminate or significantly reduce the interference of external electromagnetic waves to ablation catheter, and can reduce the external diameter of ablation catheter, reduce patient's misery, for the accuracy of monitoring result, also provide great assurance.
Summary of the invention
Technical problem to be solved by this invention is, for the needs of radio-frequency (RF) ablation operation, to provide a kind of guiding catheter with anti-electromagnetic interference function.
In order to realize above-mentioned goal of the invention, the present invention adopts following technical scheme:
A guiding catheter with anti-electromagnetic interference function, comprises columniform hollow body, the ports having of described body front end, and described body far-end is provided with remote interface,
Wherein, described body and described remote interface comprise the gauze screen being woven by conductive material, and described conductive material is laid and formed a closed ring shielding net along the tube wall intersection of described body, and, described gauze screen is drawn formation joint at remote interface place, described joint ground connection.
Wherein more preferably, described gauze screen is arranged at the intermediate layer of described body, and described gauze screen is divided into conduit internal layer and catheter outer by described body; The continuous cross winding of the horizontal line of described conductive material and ordinate forms the gauze screen of a ring-type in the outside of described conduit internal layer.
Wherein more preferably, described conductive material is selected from stainless steel material, niti material or carbon fiber.
Wherein more preferably, the count of described gauze screen is between 30pic～200pic, and wherein, pic represents the quantity in the mesh grid cross point in per inch length.
Wherein more preferably, described joint is by the direct ground connection of lead-in wire.
Wherein more preferably, described joint is by the skin electrode ground connection being connected with described remote interface.
Wherein more preferably, described joint is connected with composite cable, and by composite cable ground connection.
Wherein more preferably, described joint is arranged to pulling bayonet joint, and is connected with composite cable by pulling bayonet joint; Described composite cable carries out ground connection through arriving composite cable joint after joystick.
Wherein more preferably, in described remote interface, be provided with haemostatic valve.
Or, wherein more preferably, haemostatic valve is not set in described remote interface.
Wherein more preferably, at the far-end of described guiding catheter, be connected with Y-valve, the body inside of described Y-valve is provided with the gauze screen being woven by conductive material, and described gauze screen is by the joint ground connection of drawing.
Compared with prior art, the guiding catheter with anti-electromagnetic interference function provided by the present invention, in the body of guiding catheter, design the gauze screen of anti-electromagnetic interference, inner ablation catheter is played to electromagnetic shielding action, reduce or eliminate the interference of environmental electromagnetic wave to ablation catheter.In the time of in this guiding catheter is applied to heart and arteriorenal ablative surgery, ambient electromagnetic field be can resist on melting the impact of catheter monitoring signal, accuracy and the sensitivity of measuring electricity physiological signal improved.And this guiding catheter, when effectively utilizing body, has effectively reduced the size of radio frequency ablation catheter.In addition, netted shielding construction can also be strengthened the intensity of guiding catheter body.
Accompanying drawing explanation
Fig. 1 is the structural representation with the guiding catheter of anti-electromagnetic interference function provided by the invention;
Fig. 2 is the cross-sectional schematic of guiding catheter shown in Fig. 1;
Fig. 3 is the schematic cross-section of guiding catheter shown in Fig. 1;
Fig. 4 is shown in Fig. 1 in guiding catheter, the expansion schematic diagram of gauze screen;
Fig. 5 is the principle of electromagnetic shield-ing schematic diagram of guiding catheter shown in Fig. 1;
Fig. 6 is in the 1st embodiment, and gauze screen carries out the schematic diagram of ground connection by composite cable;
Fig. 7 is in the 2nd embodiment, and gauze screen carries out the schematic diagram of ground connection by skin electrode;
Fig. 8 is in the 3rd embodiment, and gauze screen is by the directly grounded schematic diagram of lead-in wire;
Fig. 9 is in the 4th embodiment, not containing the structural representation of the gauze screen of the guiding catheter of haemostatic valve.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As shown in Figure 1, the guiding catheter with anti-electromagnetic interference function provided by the invention comprises columniform hollow body 3, body 3 front end ports havings, the far-end of body 3 is provided with remote interface 2, and the far-end of body 3 refers to that body 3 is away from the end of human body, wherein, remote interface 2 is connected with three-way valve 1 by conduit 7, remote interface 2 inside are provided with haemostatic valve 8, and meanwhile, remote interface 2 is connected with skin electrode 4 by wire 6.In addition, guiding catheter is provided with the gauze screen 12 being woven by conductive material in body 3 and remote interface 2, and conductive material is laid and formed a closed ring shielding net along the tube wall intersection of body 3, and, gauze screen 12 is drawn at remote interface 2 places and is formed joint 5, and joint 5 carries out ground connection.
Known in conjunction with Fig. 1 to Fig. 4, in order to guarantee the safety of guiding catheter and to avoid gauze screen 12 in use to damage, gauze screen 12 is arranged to the intermediate layer of body 3, gauze screen 12 is divided into conduit internal layer 13 and catheter outer 11 by body 3.Known referring to Fig. 2, gauze screen 12 is formed by conductive material braiding, and conductive material is laid and formed closed ring shielding net 12 along the tube wall intersection of body 3.Expanded view from the gauze screen shown in Fig. 4, horizontal line and the ordinate braiding that has a certain degree after gauze screen 12 launches, when gauze screen 12 is arranged in body 3, horizontal line is wherein oblique around 13 windings of conduit internal layer, ordinate and horizontal line are oblique in the other direction and are wound around around conduit internal layer 13, and the continuous cross winding of horizontal line and ordinate forms the gauze screen of a ring-type in the outside of conduit internal layer 13.Gauze screen is formed by conductive material braiding, and wherein, conductive material can be selected from the conductive materials such as rustless steel Steel material, niti material and carbon fiber.The count of gauze screen can be different, for example, can between 30pic～200pic, select, and wherein, pic represents the quantity in the mesh grid cross point in per inch length.
Principle of electromagnetic shield-ing figure shown in Figure 5, conductive material forms a closed ring shielding net along the tube wall interlacing of body 3.When electromagnetic interference 14 radiation direction guiding catheter 3, electromagnetic interference 14 arrives gauze screen 12 through catheter outer 11, only have few electromagnetic wave 15 to be absorbed through gauze screen 12, and most electromagnetic waves 16 is all reflected away, thereby greatly reduced ambient electromagnetic field to being arranged in the electromagnetic interference of the ablation catheter of guiding catheter inside.
Above the set-up mode of gauze screen in guiding catheter 12 and shielding principle are introduced, below in conjunction with Fig. 6 to Fig. 8, the earthing mode of gauze screen 12 is illustrated.
As shown in Figure 6 to 8, ablation catheter 24 enters guiding catheter 3 inside by remote interface 2, and the radio-frequency electrode 25 of ablation catheter 24 passes and acts on human body from the port of guiding catheter 3 front ends; The far-end of ablation catheter 24 is connected with joystick 22; Ablation catheter 24 inside are provided with composite cable, and the front end of composite cable extends to radio-frequency electrode 25, and far-end is connected with composite cable joint 21 through joystick 22.
In guiding catheter provided by the present invention, gauze screen 12 is ground connection in different ways.For example, in the 1st embodiment shown in Fig. 6, the joint of gauze screen 12 5 is arranged to pulling bayonet joint 23, and is connected with composite cable by pulling bayonet joint 23; Composite cable carries out ground connection through the rear arrival composite cable of joystick 22 joint 21 places.Or in the 2nd embodiment shown in Fig. 7, gauze screen 12 can be by skin electrode 4 ground connection that are connected with remote interface 2, wherein, joint 5 is connected with skin electrode 4, and skin electrode 4 is carried out ground connection setting; Or in the 3rd embodiment shown in Fig. 8, the joint 5 of gauze screen 12 can be by the direct ground connection of lead-in wire.
In the above embodiments, in the remote interface 2 of guiding catheter, be provided with haemostatic valve 8, but it does not get rid of the structure that haemostatic valve is not set in remote interface 2.For example, do not containing in the guiding catheter of haemostatic valve, can by conductive material, be woven the gauze screen forming at body 3 and the interior setting of remote interface 2 equally, and, gauze screen is drawn at remote interface 2 places and is formed joint 5, joint 5 is direct ground connection as shown in Figure 9, also can be by the skin electrode 4 or the composite cable ground connection that are connected with joint 5.
In three embodiment shown in Fig. 6 to Fig. 8, in remote interface 2 inside of guiding catheter, be provided with haemostatic valve 8, remote interface 2 is connected with three-way valve 1 by conduit 7.In order to meet in ablative surgery, radiography, lavation, the requirements such as anticoagulant, can by three-way valve 1 to the interior injection of contrast medium of body 3 of guiding catheter carry out radiography, saline injection carries out lavation and injects heparin and carry out anticoagulant.
In the 4th embodiment shown in Fig. 9, remote interface 2 inside of guiding catheter do not arrange haemostatic valve, and, on remote interface 2, there is no connecting tee valve yet.For the ease of the interior injection of contrast medium of body 3 to guiding catheter, carrying out radiography, saline injection carries out lavation and injects heparin and carry out anticoagulant, can connect Y-valve 9 at remote interface 2 places of guiding catheter, Y-valve 9 can be spirally connected with remote interface 3, realizes sealing effectiveness.Meanwhile, in order to guarantee the anti-electromagnetic interference function of guiding catheter, be also provided with the gauze screen 30 being woven by conductive material in the body inside of Y-valve 9, gauze screen 30 is by the joint ground connection of drawing.
In sum, the guiding catheter with anti-electromagnetic interference function provided by the invention designs the gauze screen of anti-electromagnetic interference in body, and inner ablation catheter is played to electromagnetic shielding action, reduces or eliminates the interference of environmental electromagnetic wave to ablation catheter.In the time of in this guiding catheter is applied to heart and arteriorenal ablative surgery, ambient electromagnetic field be can resist on melting the impact of catheter monitoring signal, accuracy and the sensitivity of measuring electricity physiological signal improved.And this guiding catheter, when effectively utilizing body, has reduced the size of radio frequency ablation catheter, and netted gauze screen structure can also be strengthened the intensity of guiding catheter body.
Above the guiding catheter with anti-electromagnetic interference function provided by the present invention is had been described in detail.To those skilled in the art, any apparent change of under the prerequisite that does not deviate from connotation of the present invention, it being done, all will form infringement of patent right of the present invention, will bear corresponding legal responsibility.
Claims (10)
1. a guiding catheter with anti-electromagnetic interference function, comprises columniform hollow body, the ports having of described body front end, and described body far-end is provided with remote interface, it is characterized in that:
Described body and remote interface comprise the gauze screen being woven by conductive material, described conductive material is laid and is formed a closed ring shielding net along the tube wall intersection of described body, and described gauze screen is drawn formation joint at remote interface place, described joint ground connection.
2. guiding catheter as claimed in claim 1, is characterized in that:
Described conductive material is selected from stainless steel material, niti material or carbon fiber.
3. guiding catheter as claimed in claim 1, is characterized in that:
The count of described gauze screen is between 30pic～200pic, and wherein, pic represents the quantity in the mesh grid cross point in per inch length.
4. the guiding catheter as described in any one in claims 1 to 3, is characterized in that:
Described joint is by the direct ground connection of lead-in wire.
5. the guiding catheter as described in any one in claims 1 to 3, is characterized in that:
Described joint is by the skin electrode ground connection being connected with described remote interface.
6. the guiding catheter as described in any one in claims 1 to 3, is characterized in that:
Described joint is connected with composite cable, and by composite cable ground connection.
7. guiding catheter as claimed in claim 6, is characterized in that:
Described joint is arranged to pulling bayonet joint, and is connected with composite cable by pulling bayonet joint; Described composite cable carries out ground connection through arriving composite cable joint after joystick.
8. guiding catheter as claimed in claim 1, is characterized in that:
In described remote interface, be provided with haemostatic valve.
9. guiding catheter as claimed in claim 1, is characterized in that:
Haemostatic valve is not set in described remote interface.
10. guiding catheter as claimed in claim 9, is characterized in that:
Far-end at described guiding catheter is connected with Y-valve, and the body inside of described Y-valve is provided with the gauze screen being woven by conductive material, and described gauze screen is by the joint ground connection of drawing.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522732.2A CN103536356B (en) | 2013-10-29 | 2013-10-29 | There is the guiding catheter of anti-electromagnetic interference function |
| PCT/CN2014/000143 WO2014121664A1 (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| MYPI2015702559A MY179432A (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| EP14748628.6A EP2954865B1 (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| JP2015556380A JP6453769B2 (en) | 2013-02-07 | 2014-02-07 | Induction cauterization method, system and induction cautery equipment |
| US14/766,637 US9993291B2 (en) | 2013-02-07 | 2014-02-07 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN201490000298.XU CN205215353U (en) | 2013-02-07 | 2014-02-07 | Radio frequency melts system and radio frequency melts equipment thereof |
| ES14748628T ES2921176T3 (en) | 2013-02-07 | 2014-02-07 | Method, radiofrequency ablation system and radiofrequency ablation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310522732.2A CN103536356B (en) | 2013-10-29 | 2013-10-29 | There is the guiding catheter of anti-electromagnetic interference function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103536356A true CN103536356A (en) | 2014-01-29 |
| CN103536356B CN103536356B (en) | 2016-04-20 |
Family
ID=49960483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310522732.2A Active CN103536356B (en) | 2013-02-07 | 2013-10-29 | There is the guiding catheter of anti-electromagnetic interference function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103536356B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121664A1 (en) * | 2013-02-07 | 2014-08-14 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN104825156A (en) * | 2014-02-07 | 2015-08-12 | 韦伯斯特生物官能(以色列)有限公司 | Dynamic cancellation of mri sequencing noise appearing in an ecg signal |
| CN105726022A (en) * | 2014-12-31 | 2016-07-06 | 韦伯斯特生物官能(以色列)有限公司 | Electrocardiogram noise reduction |
| CN106730245A (en) * | 2017-01-11 | 2017-05-31 | 心诺普医疗技术（北京）有限公司 | A kind of medical tube and its preparation technology and the sheath using the body |
| CN107822708A (en) * | 2017-11-30 | 2018-03-23 | 中国科学技术大学 | A kind of radio frequency ablation needle |
| CN108472074A (en) * | 2015-12-31 | 2018-08-31 | 圣犹达医疗用品国际控股有限公司 | Connector shield for the Medical Devices that sensor enables |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108596132B (en) * | 2018-04-28 | 2022-07-29 | 上海微创电生理医疗科技股份有限公司 | Ablation focus evaluation method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5476495A (en) * | 1993-03-16 | 1995-12-19 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
| US5588432A (en) * | 1988-03-21 | 1996-12-31 | Boston Scientific Corporation | Catheters for imaging, sensing electrical potentials, and ablating tissue |
| US5636634A (en) * | 1993-03-16 | 1997-06-10 | Ep Technologies, Inc. | Systems using guide sheaths for introducing, deploying, and stabilizing cardiac mapping and ablation probes |
| CN102596081A (en) * | 2009-11-02 | 2012-07-18 | 皇家飞利浦电子股份有限公司 | Radio frequency ablation catheter and magnetic resonance imaging system |
| CN102781338A (en) * | 2010-01-07 | 2012-11-14 | 戈尔企业控股股份有限公司 | Improved Catheter |
| US20130245413A1 (en) * | 2001-04-13 | 2013-09-19 | Greatbatch Ltd. | Electromagnetic shield for a passive electronic component in an active medical device implantable lead |
-
2013
- 2013-10-29 CN CN201310522732.2A patent/CN103536356B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5588432A (en) * | 1988-03-21 | 1996-12-31 | Boston Scientific Corporation | Catheters for imaging, sensing electrical potentials, and ablating tissue |
| US5476495A (en) * | 1993-03-16 | 1995-12-19 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
| US5636634A (en) * | 1993-03-16 | 1997-06-10 | Ep Technologies, Inc. | Systems using guide sheaths for introducing, deploying, and stabilizing cardiac mapping and ablation probes |
| US20130245413A1 (en) * | 2001-04-13 | 2013-09-19 | Greatbatch Ltd. | Electromagnetic shield for a passive electronic component in an active medical device implantable lead |
| CN102596081A (en) * | 2009-11-02 | 2012-07-18 | 皇家飞利浦电子股份有限公司 | Radio frequency ablation catheter and magnetic resonance imaging system |
| CN102781338A (en) * | 2010-01-07 | 2012-11-14 | 戈尔企业控股股份有限公司 | Improved Catheter |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014121664A1 (en) * | 2013-02-07 | 2014-08-14 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation method, system and radio frequency ablation device thereof |
| US9993291B2 (en) | 2013-02-07 | 2018-06-12 | Shanghai Golden Leaf Med Tec Co., Ltd | Radio frequency ablation method, system and radio frequency ablation device thereof |
| CN104825156A (en) * | 2014-02-07 | 2015-08-12 | 韦伯斯特生物官能(以色列)有限公司 | Dynamic cancellation of mri sequencing noise appearing in an ecg signal |
| CN104825156B (en) * | 2014-02-07 | 2019-08-09 | 韦伯斯特生物官能(以色列)有限公司 | The dynamic for appearing in the magnetic resonance imaging sequencing noise in ECG signal is eliminated |
| CN105726022A (en) * | 2014-12-31 | 2016-07-06 | 韦伯斯特生物官能(以色列)有限公司 | Electrocardiogram noise reduction |
| CN108472074A (en) * | 2015-12-31 | 2018-08-31 | 圣犹达医疗用品国际控股有限公司 | Connector shield for the Medical Devices that sensor enables |
| CN108472074B (en) * | 2015-12-31 | 2021-06-29 | 圣犹达医疗用品国际控股有限公司 | Connector shield for sensor-enabled medical devices |
| CN106730245A (en) * | 2017-01-11 | 2017-05-31 | 心诺普医疗技术（北京）有限公司 | A kind of medical tube and its preparation technology and the sheath using the body |
| CN106730245B (en) * | 2017-01-11 | 2024-06-11 | 心诺普医疗技术（北京）有限公司 | Medical tube body and preparation process thereof and sheath tube adopting same |
| CN107822708A (en) * | 2017-11-30 | 2018-03-23 | 中国科学技术大学 | A kind of radio frequency ablation needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103536356B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103536356B (en) | There is the guiding catheter of anti-electromagnetic interference function | |
| CN205215353U (en) | Radio frequency melts system and radio frequency melts equipment thereof | |
| CN102488552B (en) | Manageable spiral electrophysiology catheter | |
| AU2016228986B2 (en) | Surgical system, device and methods of use thereof for the percutaneous creation of an arteriovenous fistula (AVF) | |
| JP2021041201A (en) | Expandable catheter assembly with flexible printed circuit board | |
| US7725161B2 (en) | Active MRI intramyocardial injeciton catheter with a deflectable distal section | |
| CN103919606B (en) | Magnetic navigation cold brine perfusion radio frequency ablation catheter | |
| US20060106303A1 (en) | Interventional devices for chronic total occlusion recanalization under MRI guidance | |
| CN106264715A (en) | There is the conduit of closed loop array with plane internal linear electrode part | |
| CN107405104B (en) | Field-concentrating antenna for a magnetic position sensor | |
| CN105796090A (en) | Basket catheter with improved spine flexibility | |
| CN103356281A (en) | Catheter with composite construction | |
| CN102711648A (en) | Radio frequency ablation system with tracking sensor | |
| CN103816606A (en) | Irrigated catheter with fluid evacuation | |
| WO2010011820A4 (en) | Ablation and monitoring system including a fiber optic imaging catheter and an optical coherence tomography system | |
| CN107693089A (en) | Three-dimensional atrial septal puncture system | |
| CN107149511B (en) | Intravascular filter device and intravascular protector | |
| CN104883945A (en) | MRI compatible handle and steerable sheath | |
| CN210277954U (en) | Blood vessel expansion sacculus with interception net | |
| EP2410922A1 (en) | Apparatus for carrying out diagnostic and/or therapeutic procedures | |
| CN105813553A (en) | Device, system, and method for assessing intravascular pressure | |
| CN110430808A (en) | Intravascular sensing device with flexible tip structure | |
| US20220142695A1 (en) | Cryoablation catheter | |
| CN102525698A (en) | Interposed medical appliance delivery and release device | |
| CN203598333U (en) | Mapping sheathing tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |