CN220344479U - Electrode needle for ablation of cardiomyopathy - Google Patents
Electrode needle for ablation of cardiomyopathy Download PDFInfo
- Publication number
- CN220344479U CN220344479U CN202321373756.1U CN202321373756U CN220344479U CN 220344479 U CN220344479 U CN 220344479U CN 202321373756 U CN202321373756 U CN 202321373756U CN 220344479 U CN220344479 U CN 220344479U
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- cardiomyopathy
- handle
- electrode
- chamber
- ablation
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- 238000002679 ablation Methods 0.000 title claims abstract description 55
- 208000031229 Cardiomyopathies Diseases 0.000 title claims abstract description 25
- 230000002107 myocardial effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 210000000596 ventricular septum Anatomy 0.000 abstract description 8
- 210000001519 tissue Anatomy 0.000 abstract description 6
- 230000002861 ventricular Effects 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 5
- 230000001969 hypertrophic effect Effects 0.000 abstract description 5
- 230000006907 apoptotic process Effects 0.000 abstract description 3
- 230000002427 irreversible effect Effects 0.000 abstract description 3
- 210000000944 nerve tissue Anatomy 0.000 abstract description 3
- 230000001338 necrotic effect Effects 0.000 abstract description 2
- 230000002792 vascular Effects 0.000 abstract description 2
- 206010020871 hypertrophic cardiomyopathy Diseases 0.000 description 6
- 230000000414 obstructive effect Effects 0.000 description 4
- 206010003671 Atrioventricular Block Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010006578 Bundle-Branch Block Diseases 0.000 description 2
- 206010003119 arrhythmia Diseases 0.000 description 2
- 230000006793 arrhythmia Effects 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003211 malignant effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007674 radiofrequency ablation Methods 0.000 description 2
- 206010006580 Bundle branch block left Diseases 0.000 description 1
- 206010006582 Bundle branch block right Diseases 0.000 description 1
- 206010016654 Fibrosis Diseases 0.000 description 1
- 208000021908 Myocardial disease Diseases 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 230000004761 fibrosis Effects 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 201000001715 left bundle branch hemiblock Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000010125 myocardial infarction Diseases 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 201000007916 right bundle branch block Diseases 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000035488 systolic blood pressure Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Abstract
The application relates to a cardiomyopathy ablation electrode needle, a user can hold a handle, an electrode head of an ablation electrode needle assembly pierces into the bottom of a ventricular septum, a guide core and a catheter transmit current to the electrode head and an electrode ring, the electrode head and the electrode ring discharge, nanosecond pulse electric field energy is deeply and deeply transmitted into hypertrophic ventricular septum tissues, and local irreversible myocardial necrotic apoptosis is formed so as to be fibrosed, so that the pressure level difference of left ventricular outflow tracts is remarkably reduced, outflow tract obstruction is reduced, and no influence is exerted on ventricular vascular and conduction system nerve tissues.
Description
Technical Field
The application relates to the field of medical equipment, in particular to an ablation electrode needle for cardiomyopathy.
Background
Hypertrophic Cardiomyopathy (HCM) is one of the most common hereditary heart diseases, and thickening of the ventricular septum base causes mechanical obstruction of the left ventricular outflow tract, increases left ventricular systolic pressure, aggravates myocardial ischemia, and is a main cause of symptoms of obstructive HCM patients.
Current invasive treatments for symptomatic obstructive HCM patients include surgical inter-ventricular cardiotomy, inter-ventricular myocardial ablation, and dual-chamber pacemaker implantation, which are highly traumatic and risky to the patient by ablation, and have a high incidence of left bundle branch block after inter-ventricular cardiotomy, which is prone to three-degree atrioventricular block for the patient who has right bundle branch block before surgery, requiring implantation of a permanent cardiac pacemaker; the radio frequency ablation of the ventricular septum myocardial ablation is treated by the heat energy of a radio frequency needle head, but the range and the depth are difficult to control, the curative effect is limited, and complications such as atrioventricular block, malignant arrhythmia and the like are easy to cause; the dual-chamber pacemaker (right atrium-right ventricle sequential pacing) has few applications for treating obstructive HCM patients, the long-term curative effect is not definite, and the pulse electric field spectrum of millisecond and microsecond waves of the pacemaker also limits the application of the pacemaker in the cardiovascular field.
Disclosure of Invention
Based on the above, it is necessary to control the radio frequency ablation area and depth of the existing ventricular septum myocardial ablation technique, which is easy to induce complications such as atrioventricular block, malignant arrhythmia and the like; the double-cavity pacemaker (right atrium-right ventricle sequential pacing) is used for treating the problems of little application and inaccurate long-term curative effect of an obstructive HCM patient, and provides the myocardial disease ablation electrode needle.
The present application provides a cardiomyopathy ablation electrode needle, comprising:
the handle is used for fixing the ablation electrode needle and is a hollow handle-shaped combination body consisting of a left half chamber and a right half chamber;
the tail wire plug-in is fixedly connected to the handle;
an ablation electrode needle assembly having one end extending into the interior of the handle, the ablation electrode needle assembly comprising:
the guide core is used for conducting electricity, and one end of the guide core extends into the handle;
the catheter is of a tubular structure and is wrapped outside the guide core;
the tail end of the electrode head is fixedly connected to the other end of the guide core;
the electrode ring is fixedly connected to one end of the catheter;
the insulating sleeve is arranged between the electrode head and the electrode ring;
and the outer tube is used for protecting the guide core and the catheter, and the outer tube is wrapped outside the catheter.
Further, the horizontal end of the handle is provided with an inlet, the holding end of the handle is provided with an outlet, and the interior of the handle is sequentially provided with a sleeve chamber, a front buckle chamber and a rear buckle chamber.
Further, a sleeve is fixedly connected in the sleeve chamber, the sleeve is I-shaped, a first through hole is formed in the middle of the sleeve, and the outer tube is inserted into the first through hole.
Further, the front buckle is fixedly connected with a front buckle in the front buckle chamber, a second through hole is formed in the middle of the front buckle, and one end of the catheter is inserted into the second through hole.
Further, the rear buckle is fixedly connected with a rear buckle in the rear buckle chamber, a third through hole is formed in the middle of the rear buckle, one end of the guide core is inserted into the third through hole, and the circle centers of the first through hole, the second through hole and the third through hole are located on the same straight line.
Further, the conducting core is coated with insulating glue except the top surface and the bottom surface, the insulating sleeve is fixedly connected to the insulating part of the conducting core, and the head of the electrode head is in a needle shape.
Further, the electrode tip is electrically connected with the tail wire plug-in through a wire, the electrode ring is electrically connected with the tail wire plug-in through a wire, and the electrical property of the electrode tip is opposite to that of the electrode ring.
Further, the outer tube is an insulating tube, and the outer tube extends into the handle through the inlet.
Further, the left half chamber is provided with a fixed buckle, the right half chamber is provided with a fixed clamping groove, and the left half chamber is clamped in the right half chamber.
The application relates to a cardiomyopathy ablation electrode needle, a user can hold a handle, an electrode head of an ablation electrode needle assembly pierces into the bottom of a ventricular septum, a guide core and a catheter transmit current to the electrode head and an electrode ring, the electrode head and the electrode ring discharge, nanosecond pulse electric field energy is deeply and deeply transmitted into hypertrophic ventricular septum tissues, and local irreversible myocardial necrotic apoptosis is formed so as to be fibrosed, so that the pressure level difference of left ventricular outflow tracts is remarkably reduced, outflow tract obstruction is reduced, and no influence is exerted on ventricular vascular and conduction system nerve tissues.
Drawings
Fig. 1 is a perspective view of a cardiomyopathy ablation electrode needle provided in an embodiment of the present application.
Fig. 2 is a perspective view of the left half chamber of the handle of a cardiomyopathy ablation electrode needle provided in an embodiment of the present application.
Fig. 3 is a perspective view of a guide core of a cardiomyopathy ablation electrode needle provided in an embodiment of the present application.
Fig. 4 is a perspective view of the right half chamber of the handle of a cardiomyopathy ablation electrode needle provided in an embodiment of the present application.
Fig. 5 is an enlarged view of an ablation electrode needle assembly of a cardiomyopathy ablation electrode needle provided in an embodiment of the present application.
Reference numerals:
100. a handle; 100a, left half chamber; 100b, right half chamber; 101. a sleeve chamber;
102. a front buckle chamber; 103. a rear snap chamber; 104. a sleeve; 105. a front buckle;
106. a rear buckle; 107. a first through hole; 108. a second through hole;
109. a third through hole; 110. an inlet; 111. an outlet; 112. a fixing buckle;
113. a fixing slot; 200. a tail wire plug-in; 300. an ablation electrode needle assembly; 301. a guide core;
302. a conduit; 303. an electrode head; 304. an electrode ring; 305. an insulating sleeve; 306. an outer tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The application provides a cardiomyopathy ablation electrode needle. It should be noted that the cardiomyopathy ablation electrode needle provided in the present application is applied to any kind of ablation electrode needle.
As shown in fig. 1, in one embodiment of the present application, the cardiomyopathy ablation electrode needle comprises a handle 100, a tail insert 200, and an ablation electrode needle assembly 300.
The handle 100 is used for fixing an ablation electrode needle, and the handle 100 is a hollow handle 100-shaped combination consisting of a left half chamber 100a and a right half chamber 100b. The tail insert 200 is fixedly attached to the handle 100.
One end of the ablation electrode needle assembly 300 extends into the handle 100, and the ablation electrode needle assembly 300 comprises a guide core 301, a catheter 302, an electrode tip 303, an electrode ring 304, an insulating sleeve 305 and an outer tube 306.
The guide core 301 is used for conducting electricity, and one end of the guide core 301 extends into the handle 100. The catheter 302 is a tubular structure, and the catheter 302 is wrapped outside the guide core 301. The tail end of the electrode head 303 is fixedly connected to the other end of the guide core 301. The electrode ring 304 is fixedly attached to one end of the catheter 302. The insulating sleeve 305 is disposed between the electrode head 303 and the electrode ring 304. The outer tube 306 is used for protecting the guide core 301 and the catheter 302, and the outer tube 306 is wrapped outside the catheter 302.
In this embodiment, the user can hold the handle 100 to pierce the electrode tip 303 of the ablation electrode needle assembly 300 into the compartment space base, the guide core 301 and the catheter 302 transmit current to the electrode tip 303 and the electrode ring 304, the electrode tip 303 and the electrode ring 304 discharge, nanosecond pulse electric field energy is deeply transmitted into the hypertrophic compartment space tissue, and local irreversible myocardial necrosis apoptosis is formed and then fibrosis is formed, so that the left compartment outflow channel pressure step is remarkably reduced, the outflow channel obstruction is reduced, and meanwhile, no influence is exerted on compartment space blood vessels and conduction system nerve tissues.
As shown in fig. 2, the horizontal end of the handle 100 is provided with an inlet 110, the gripping end of the handle 100 is provided with an outlet 111, and the interior of the handle 100 is provided with a sleeve chamber 101, a front latch chamber 102 and a rear latch chamber 103 in sequence.
Specifically, the diameter of the inlet 110 is equal to the diameter of the outer tube 306, and the outer tube 306 is inserted into the handle 100 through the inlet 110.
In this embodiment, one end of the outer tube 306 is inserted into the handle 100 through the inlet 110 and then extends to the sleeve chamber 101, the front buckle chamber 102 is provided with the front buckle 105, the rear buckle chamber 103 is provided with the rear buckle 106, and the sleeve chamber 101, the front buckle chamber 102 and the rear buckle chamber 103 jointly fix one end of the ablation electrode needle assembly 300 inside the handle 100 so as to maintain the stability of the ablation electrode needle assembly 300 and avoid the deviation of the position of the electrode head 303 during penetration.
As shown in fig. 3, a sleeve 104 is fixedly connected in the chamber 101 of the sleeve 104, the sleeve 104 is i-shaped, a first through hole 107 is formed in the middle of the sleeve 104, and the outer tube 306 is inserted into the first through hole 107.
Specifically, the sleeve 104 is open at both ends, and the conduit 302 inside the outer tube 306 extends through the sleeve 104 and out.
In this embodiment, the outer tube 306 is inserted into the first through hole 107 of the sleeve 104, the sleeve 104 secures the outer tube 306 within the sleeve chamber 101, and the conduit 302 extends through the first through hole 107 to the front buckle chamber 102.
As shown in fig. 3, a front buckle 105 is fixedly connected to the front buckle chamber 102, a second through hole 108 is formed in the middle of the front buckle 105, and one end of the conduit 302 is inserted into the second through hole 108.
Specifically, one end of the conduit 302 is inserted into the forward catch 105 and connected to the tail insert 200.
In this embodiment, one end of the conduit 302 extends to the front buckle chamber 102 after passing through the first through hole 107 and is fixedly connected in the front buckle 105, the front buckle 105 connects one end of the conduit 302 with the tail wire plug-in 200, and the tail wire plug-in 200 supplies power to the conduit 302, so as to supply power to the electrode ring 304 at the other end of the conduit 302, so that the electrode ring 304 can discharge.
As shown in fig. 3, in an embodiment of the present application, a rear buckle 106 is fixedly connected to the rear buckle chamber 103, a third through hole 109 is provided in the middle of the rear buckle 106, one end of the guide core 301 is inserted into the third through hole 109, and the centers of the first through hole 107, the second through hole 108 and the third through hole 109 are located on the same straight line.
Specifically, one end of the guide core 301 passes through the second through hole 108 to extend to the rear buckle chamber 103 and is fixedly connected with the rear buckle 106.
In this embodiment, the rear buckle 106 connects one end of the guide core 301 with the tail wire plug-in 200, and the tail wire plug-in 200 supplies power to the guide core 301, so as to supply power to the electrode tip 303 at the other end of the guide core 301, so that the electrode tip 303 can discharge.
As shown in fig. 5, in an embodiment of the present application, the conductive core 301 is coated with insulating glue except for the top surface and the bottom surface, the insulating sleeve 305 is fixedly connected to the insulating portion of the conductive core 301, and the head of the electrode tip 303 is in a needle shape.
Specifically, since the tail wire plug-in 200 is electrically connected with the guide core 301 and the guide tube 302 at the same time, and the guide tube 302 is wrapped outside the guide core 301, the contact surface between the guide tube 302 and the guide core 301 cannot conduct electricity, so that the short circuit between the guide core 301 and the guide tube 302 is avoided.
In this embodiment, since the electrical properties of the electrode tip 303 and the electrode ring 304 are opposite when discharging, the electrode tip 303 and the electrode ring 304 need to be separated by the insulating sleeve 305, so as to prevent the ablation electrode needle assembly 300 from being damaged due to short circuit, and also protect the patient, and the needle-shaped electrode tip 303 makes the electrode tip 303 easier to puncture the ablation tissue.
As shown in fig. 1, in an embodiment of the present application, the electrode tip 303 is electrically connected to the tail insert 200 through a wire, the electrode ring 304 is electrically connected to the tail insert 200 through a wire, and the electrical properties of the electrode tip 303 and the electrode ring 304 are opposite.
Specifically, the electrical characteristics of the electrode tip 303 and the electrode ring 304 are opposite when they are discharged, that is, there are two cases in which the electrode tip 303 is positively charged and the electrode ring 304 is negatively charged.
In this embodiment, the electrode tip 303 and the electrode ring 304 are powered by the tail wire plug 200, so that the electrode tip 303 and the electrode ring 304 can penetrate nanosecond pulse electric field energy into hypertrophic ventricular septum tissue to complete ablation of hypertrophic myocardial tissue.
As shown in fig. 1, one end of the tail wire insert 200 is fixedly connected with the guide core 301 and the catheter 302, and the other end of the tail wire insert 200 extends to the outside through the outlet 111 and is connected with the ablation system.
Specifically, the diameter of the outlet 111 is equal to the diameter of the tail insert 200.
In this embodiment, the tail wire insert 200 connects the guide core 301, the catheter 302, and the ablation system.
As shown in fig. 1, the outer tube 306 is an insulating tube, and the outer tube 306 extends into the handle 100 through the inlet 110.
In particular, the outer tube 306 may be a braided tube.
In this embodiment, the outer tube 306 is insulated to avoid the electricity of the guide core 301 and the catheter 302 covered in the outer tube 306 from being transmitted to the outside, so that the ablation electrode needle assembly 300 only discharges to the outside through the electrode head 303 and the electrode ring 304, and the safety of the user is protected.
As shown in fig. 4, in an embodiment of the present application, the left half chamber 100a is provided with a fixing buckle 112, the right half chamber 100b is provided with a fixing slot 113, and the left half chamber 100a is clamped to the right half chamber 100b.
Specifically, there may be multiple groups of the fixing buckle 112 and the fixing slot 113, the fixing buckle 112 may also be configured as a tenon rod, and the fixing slot 113 may also be configured as a mortise.
In this embodiment, the left half chamber 100a of the handle 100 and the right half chamber 100b of the handle 100 are combined together by the engagement of the fixing buckle 112 and the fixing slot 113, so that the handle 100 is easier to assemble and disassemble.
The technical features of the above embodiments may be combined arbitrarily, and the steps of the method are not limited to the execution sequence, so that all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description of the present specification.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A cardiomyopathy ablation electrode needle, characterized in that the cardiomyopathy ablation electrode needle comprises:
the handle is used for fixing the ablation electrode needle and is a hollow handle-shaped combination body consisting of a left half chamber and a right half chamber;
the tail wire plug-in is fixedly connected to the handle;
an ablation electrode needle assembly having one end extending into the interior of the handle, the ablation electrode needle assembly comprising:
the guide core is used for conducting electricity, and one end of the guide core extends into the handle;
the catheter is of a tubular structure and is wrapped outside the guide core;
the tail end of the electrode head is fixedly connected to the other end of the guide core;
the electrode ring is fixedly connected to one end of the catheter;
the insulating sleeve is arranged between the electrode head and the electrode ring;
and the outer tube is used for protecting the guide core and the catheter, and the outer tube is wrapped outside the catheter.
2. The cardiomyopathy ablation electrode needle of claim 1, wherein the horizontal end of the handle is provided with an inlet, the gripping end of the handle is provided with an outlet, and the interior of the handle is provided with a sleeve chamber, a front buckle chamber and a rear buckle chamber in sequence.
3. The cardiomyopathy ablation electrode needle of claim 2, wherein a sleeve is fixedly connected in the sleeve chamber, the sleeve is i-shaped, a first through hole is formed in the middle of the sleeve, and the outer tube is inserted into the first through hole.
4. The cardiomyopathy ablation electrode needle of claim 3, wherein a front buckle is fixedly connected in the front buckle chamber, a second through hole is formed in the middle of the front buckle, and one end of the catheter is inserted into the second through hole.
5. The cardiomyopathy ablation electrode needle of claim 4, wherein a rear buckle is fixedly connected in the rear buckle chamber, a third through hole is formed in the middle of the rear buckle, one end of the guide core is inserted into the third through hole, and the centers of the first through hole, the second through hole and the third through hole are positioned on the same straight line.
6. The myocardial ablation electrode needle of claim 5, wherein the guide core is coated with insulating glue except the top surface and the bottom surface, the insulating sleeve is fixedly connected to the insulating part of the guide core, and the head of the electrode head is in a needle shape.
7. The cardiomyopathy ablation electrode pin of claim 6, wherein the electrode tip is electrically connected to the tail insert by a wire, the electrode ring is electrically connected to the tail insert by a wire, and the electrode tip is electrically opposite to the electrode ring.
8. The cardiomyopathy ablation electrode needle of claim 1, wherein one end of the tail insert is fixedly connected to the guide core and the catheter, and the other end of the tail insert extends to the outside through the outlet and is connected to the ablation system.
9. The cardiomyopathy ablation electrode needle of claim 8, wherein the outer tube is an insulated tube that extends into the handle through the inlet.
10. The cardiomyopathy ablation electrode needle of claim 9, wherein the left half chamber is provided with a fixed buckle, the right half chamber is provided with a fixed slot, and the left half chamber is clamped to the right half chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321373756.1U CN220344479U (en) | 2023-06-01 | 2023-06-01 | Electrode needle for ablation of cardiomyopathy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321373756.1U CN220344479U (en) | 2023-06-01 | 2023-06-01 | Electrode needle for ablation of cardiomyopathy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220344479U true CN220344479U (en) | 2024-01-16 |
Family
ID=89476044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321373756.1U Active CN220344479U (en) | 2023-06-01 | 2023-06-01 | Electrode needle for ablation of cardiomyopathy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220344479U (en) |
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2023
- 2023-06-01 CN CN202321373756.1U patent/CN220344479U/en active Active
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