CN104771162A - Heart electricity information mapping electrode - Google Patents

Abstract

The present invention relates to the field of surgical instruments, in particular to a cardiac electrical information mapping electrode, which is mainly used in the detection of electrical signals of the His bundle and the right ventricle, comprising: a catheter; one end of the catheter is provided with an electrode, The electrode is coaxial with the catheter; the other end of the catheter is provided with a connector; there are multiple electrodes, and the multiple electrodes are used to obtain electrical signals at different positions of the heart. In the cardiac electrical information mapping electrode provided in this application, a plurality of electrodes are set on the catheter, which can contact different positions of the heart, so it is possible to obtain electrical signals from different positions of the heart, and through a catheter, respectively detect hope The electrodes of the bundle and the right ventricle reduce the amount of catheters, reduce inspection costs, and reduce operation time, thereby reducing the exposure time of people under X-rays, thereby reducing the impact of X-rays on the human body.

Description

Cardiac Electrical Information Mapping Electrodes

technical field

The invention relates to the field of surgical instruments, in particular to a cardiac electrical information mapping electrode.

Background technique

At present, during electrophysiological examination of the heart, it is necessary to place the mapping electrode at a specific position of the heart. passed to the corresponding inspection equipment. For general electrophysiological examination, different electrodes are placed in different positions of the heart during the examination, so it is necessary to place different mapping electrodes in different positions of the heart, such as the high right atrial electrode and the His bundle electrode. 4-pole electrodes, right ventricular electrodes are generally 2-pole or 4-pole electrodes, coronary sinus electrodes are 10-pole electrodes, etc.

However, each electrode will generate cost, the more electrodes are placed, the higher the cost of electrophysiological examination; at the same time, because different electrodes will be placed in different positions of the heart, during the placement operation, Since the blood vessels of the human body are connected to the heart, the mapping electrodes pass through the arteries or meridians in different positions of the human body to reach the position of the heart. Therefore, the more electrodes to be placed, the longer the operation will take, and the operation is carried out under X-ray This is equivalent to increasing the exposure time of X-rays, thereby increasing the impact of X-rays on the human body.

Contents of the invention

In view of this, the purpose of the embodiments of the present invention is to provide a heart electrical information mapping electrode, which can complete the same detection with fewer mapping electrodes, save the cost of examination, and reduce the time of operation.

In the first embodiment of the present invention, the power measurement and control device provided by the embodiment of the present invention is applied to the detection of electrical signals of the His bundle and the right ventricle, comprising: a catheter; one end of the catheter is provided with an electrode, the electrodes are coaxial with the catheter;

The other end of the conduit is provided with a connector;

There are multiple electrodes, and the multiple electrodes are used to obtain electrical signals at different positions of the heart.

In combination with the above-mentioned embodiments, the embodiments of the present invention provide a first possible implementation manner of the above-mentioned embodiments, wherein multiple conducting wires that are not connected to each other are arranged in the catheter;

Each of the electrodes is respectively connected with a different wire.

In combination with the foregoing embodiments, the embodiments of the present invention provide a second possible implementation manner of the foregoing embodiments, wherein a cavity is provided in the catheter, and the guide wire is disposed in the cavity.

In combination with the above embodiment, the embodiment of the present invention provides a third possible implementation manner of the above embodiment, the catheter includes: a marking tube and an insertion tube;

The two ends of the marking tube are respectively connected to the connecting head and the in-depth tube;

The electrodes are arranged at the end of the deep-in tube away from the marking tube.

In combination with the above embodiment, the embodiment of the present invention provides a fourth possible implementation manner of the above embodiment, the marking tube is a rigid catheter;

The in-depth tube is a flexible catheter with a smooth outer surface; the flexible catheter can be bent along the path of the blood vessel in the human blood vessel.

In combination with the above embodiments, the embodiment of the present invention provides a fifth possible implementation manner of the above embodiments, the electrodes include: a His beam electrode for detecting a His beam current signal and a right ventricle electrode for detecting a right ventricle electrode. Ventricular electrodes;

There are at least two His bundle electrodes and the right ventricle electrodes;

The distance between the adjacent His beam electrodes is equal;

The distances between the adjacent right ventricle electrodes are equal.

In combination with the above embodiments, the embodiments of the present invention provide a sixth possible implementation manner of the above embodiments, the width of the His beam electrode is 0.95-1.05 mm;

The width of the right ventricle electrode is 0.95-1.05mm, and/or, the width of the right ventricle electrode is 1.8-2.2mm;

And/or, the distance between adjacent His beam electrodes is: 4.5-5.5mm;

And/or, the shortest distance between the His bundle electrode and the right ventricle electrode is: 37-39mm;

And/or, the distance between the electrodes of the right ventricle is: 9.5-10.5mm;

And/or, the diameter of the catheter is 1.8-2.2mm;

And/or, the length of the catheter is: 1150-1250mm.

With reference to the foregoing embodiments, the embodiments of the present invention provide a seventh possible implementation manner of the foregoing embodiments, wherein the catheter is detachably connected to the connecting head.

In combination with the above embodiment, the embodiment of the present invention provides an eighth possible implementation manner of the above embodiment, wherein a plurality of grooves communicating with the conduit are provided inside the connector;

Each groove is provided with connecting pins;

Each of the wires extends into one of the grooves, and is detachably connected with the connecting pins in the grooves.

In combination with the above-mentioned embodiment, the embodiment of the present invention provides a ninth possible implementation manner of the above-mentioned embodiment. The end of the wire extending into the groove is also connected with a connector, and the connection pin can be inserted into the in the connector.

The heart electrical information mapping electrode provided by the embodiment of the present invention, when the heart electrical information mapping electrode is placed in the human body through surgery, since the heart of the human body communicates with the blood vessels, it is necessary to make the end of the catheter Multiple electrodes arrive at predetermined installation positions along the blood vessels (arteries or meridians) of the human body. In order to effectively reduce the number of mapping electrodes, the positions that multiple electrodes can reach can generally be reached through a branch of a blood vessel. In the structure of the human heart and vascular circuit, the His bundle and the right ventricle can be reached through a blood vessel. Therefore, the cardiac electrical information mapping electrode provided by this application is mainly used to detect the electrical signals of the His bundle and the right ventricle. In the detection of the heart electrical information provided by the application, since multiple electrodes are set on the catheter, the positions of the multiple electrodes are different, so different positions of the heart can be contacted, so It can obtain electrical signals from different positions of the heart. In this way, as long as the distance between different electrodes is controlled, the His bundle and the electrodes of the right ventricle can be detected respectively through a catheter. In this way, the amount of catheters is reduced. One is to reduce the cost of the operation, which in turn can reduce the inspection cost. The second is that there are fewer catheters installed, and the time used for the operation is also reduced accordingly, thereby reducing the exposure time of people in the X-ray offline, thereby reducing the impact of X-rays on the human body. Impact.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 shows a schematic structural diagram of a cardiac electrical information mapping electrode provided by an embodiment of the present invention;

Fig. 2 shows a cross-sectional view of the position of the connector in the cardiac electrical information mapping electrode provided by the embodiment of the present invention;

Reference signs:

101-catheter; 103-electrode; 104-connector; 105-wire;

106-groove; 107-connecting pin; 108-socket; 109-sign tube; 110-limiting platform; 111-connecting sleeve;

1031-His bundle electrode; 1032-right ventricle electrode.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the current cardiac electrophysiological examination, a large number of cardiac electrical information mapping electrodes are used, resulting in high operation cost and long operation time, which increases the exposure time of X-rays, thereby increasing the impact of X-rays on the human body. Based on this, the present application provides a cardiac electrical information mapping electrode, which is mainly used in the detection of electrical signals of the His bundle and the right ventricle, which can reduce the number of mapping electrodes used in cardiac electrophysiological examination, reduce the Examination costs, while reducing operation time, reducing the exposure time of X-rays, thereby reducing the impact of X-rays on the human body.

Referring to FIG. 1 , the heart electrical information mapping electrode provided by the embodiment of the present invention includes: a catheter 101; an electrode 103 is provided at one end of the catheter 101, and the electrode 103 is coaxial with the catheter 101;

The other end of the conduit 101 is provided with a connector 104;

There are multiple electrodes 103; the multiple electrodes 103 are used to obtain electrical signals from different positions of the heart.

In actual implementation, when the cardiac electrical information mapping electrodes are placed in the human body through surgery, since the heart of the human body communicates with the blood vessels, the electrodes 103 at the end of the catheter 101 should be placed along the blood vessels of the human body. (arteries or veins), to reach a predetermined installation position, in order to effectively reduce the number of mapping electrodes, the positions that can be reached by multiple electrodes 103 can generally be reached through one blood vessel. In the structure of the human heart and vascular circuit, the His bundle and the right ventricle can be reached through a blood vessel. Therefore, the cardiac electrical information mapping electrode provided by this application is mainly used to detect the electrical signals of the His bundle and the right ventricle. In the detection of cardiac electrical information provided in this application, since multiple electrodes 103 are set on the catheter, the positions of different electrodes 103 are different, so different positions of the heart can be contacted , so it is possible to acquire electrical signals at different positions of the heart. In this way, as long as the distance between the electrodes 103 is controlled, one catheter can be used to detect the electrodes of the His bundle and the right ventricle respectively. In this way, the amount of the catheter is reduced. One is to reduce the cost of the operation, which in turn can reduce the inspection cost. The other is to install fewer catheters, and the time used for the operation is correspondingly reduced, reducing the exposure time of people in the X-ray offline, thereby reducing the impact of X-rays. Effects on the human body.

Considering that the electrodes 103 can detect electrical signals at different positions of the heart, and it can be ensured that the electrodes 103 can transmit the detected electrical signals to corresponding detection equipment, such as an electrocardiogram measuring instrument, therefore, mutually different devices are set in the catheter. There are a plurality of conducting wires 105 , and each electrode 103 is connected to a different wire 105 .

In actual implementation, a cavity may be provided in the catheter, and a wire may be placed in the cavity, and one end of the wire passes through the side wall of the catheter and is connected to the electrode 103 . The other end of the wire is inside the catheter 101 and reaches the connector along the cavity. It should be noted that since the electrode 103 is to be inserted into the blood vessel, the connection between the electrode 103 and the catheter 101 is sealed in order to prevent the blood inside the blood vessel from entering the cavity of the catheter 101 .

In addition to placing the wire 105 through the cavity provided in the catheter, it is also possible to directly use the material for making the catheter to cast outside the multiple wires to make the whole catheter, so that the wire 105 and the catheter 101 are connected as one, which is beneficial The doctor's control of the entire catheter during the operation.

The connector serves two purposes:

One is to transmit the electrical signal transmitted by the wire connected to it to the relevant detection equipment;

The second is that during the operation, the doctor can hold the connecting head and adjust the direction and path of the catheter 101 entering the blood vessel by rotating the catheter connected with the connecting head, so that the electrode 103 is finally attached to the specific position to be measured in the heart .

In general, the catheter and the connector are fixedly connected, that is, when the overall mapping electrode is manufactured, the catheter and the connector are made as a whole, and the end of the connector far away from the catheter can be used to connect to the relevant detection equipment. The electrical information transmitted by the wire to the connector is transmitted to the relevant detection equipment. For each patient, the used mapping electrodes are disposable.

In addition, except for children and some people with special heart diseases, the size of the hearts of other people is similar, but there are still certain differences. Therefore, when examining different people, the specific standard used The measurement electrode should be based on the final X-ray imaging of the human body, and the doctor will make a specific judgment based on the imaging results. Therefore, in order to increase the selectivity of the cardiac electrical information mapping electrode (that is, different people, the cardiac electrical information used On the electrodes, the position of the electrodes 103 or the distance between the electrodes 103 may be different), and in order to make the connectors reusable, that is, to further reduce the cost of inspection, different patients only need to replace the catheter 101, so In the cardiac electrical information mapping electrode provided in this application, the catheter 101 and the connector 104 are detachably connected.

In actual implementation, a limiter 110 is provided on the end of the catheter away from the electrode 103; a connecting sleeve 111 is sleeved on the catheter; the connecting sleeve 111 can be blocked by the limiter 110, so that the connecting sleeve 111 The end of the catheter 101 remote from the electrode 103 cannot be slid out of the catheter 101 . An internal thread is provided in the connecting sleeve, and an external thread cooperating with the internal thread is provided on the connecting head 104 , and the connecting sleeve can be detachably connected to the connecting head 104 through the internal thread and the external thread.

At the same time, after the doctor puts the catheter into the blood vessel of the human body, it is necessary to turn the catheter to adjust the position of the catheter. Since the catheter 101 itself is detachably connected with the connector 104, it may cause the catheter 101 to Rotate between the catheter and the connector 104, the rotation between the catheter and the connector will have a certain impact on the doctor's operation, in order to eliminate this effect, a limited clip is also formed on the catheter, the limit clip can make the catheter 101 Rotation occurs between the connection head 104 and the connection head 104.

In addition, an external thread can also be provided on the connecting sleeve, and an internal thread cooperating with the external thread can be provided on the connecting head 104. Similarly, the connecting sleeve can be detachably connected through the internal thread and the external thread. on connector 104.

In addition, considering that the wire 105 is set in the catheter 101 and the catheter 101 is detachably connected to the connector 104 , it is also necessary to detachably connect the wire 105 to the connector 104 . Specifically, when realizing, a plurality of grooves 106 communicating with the conduit 101 are arranged inside the connector 104; connecting pins 107 are arranged in each groove 106; each lead 105 extends Insert one of the grooves 106, and detachably connect with the connecting pins 107 in the groove 106.

Generally, the direction of the groove 106 is set toward the direction where the catheter 101 is located, so that the connection between the wire 105 in the catheter and the connecting pin 107 can be facilitated. At the same time, the number of grooves 106 and connection pins 107 is generally more than the number of wires 105, for example, the number of connection pins is set to 14, and generally speaking, the number of wires is within 10. Not only the catheter 101 and the connector provided in the present application can be installed on the connector 104 but also a catheter for mapping electrodes used to measure electrical information at other locations. No matter how many wires 105 are in the conduit 101 , it is guaranteed that each wire can be connected to the connector 104 .

When connecting the connecting pin 107 and the wire 105, in order to facilitate the connection of the two, the end of the wire 105 extending into the groove 106 is also connected with a connector 108, and the connecting pin 107 can be inserted into the plug. Connector 108.

In addition, the connector 108 can also be arranged in the groove 106, and the connecting pin 107 can be set on the wire 105 at the same time, or the wire 105 can be directly used as the connecting pin 107, and the connection between the wire 105 and the connector 104 can also be realized. detachable connection between.

In addition, during the operation, the doctor needs to constantly rotate the catheter to adjust the direction of the catheter and the position of the electrode 103, and the blood vessels of the human body are not a single tube, but have various forks and curvatures. Therefore, the catheter must be It is a flexible catheter with a certain degree of flexibility. The flexible catheter can be bent along the path of the blood vessel in the human blood vessel under the control of the doctor. In this way, the doctor can continuously rotate the catheter or adjust the position of the catheter to put the catheter on the The electrodes 103 are sent to the preset inspection position.

The surface of the flexible catheter is smooth, that is, the surface of the catheter does not have any protrusions, threads, barbs, rust spots, etc. Only in this way can it be ensured that when the catheter advances in the blood vessel of the human body, the damage of the catheter to the blood vessel of the human body can be reduced.

In addition, when the flexible conduit is relatively soft, it may be bent from the position of the conduit 101 and the connector 104 when rotating. At the same time, since the flexible conduit is prone to deformation, in order to ensure that the conduit can be easily installed on the 104, also for the flexible catheter to be better controlled by the doctor, between the catheter 101 and the connector 104, there is also a marker tube 109; Therefore, it can be better connected with the connection head 104 and can be manipulated by doctors more easily. The electrode is disposed at the end of the catheter away from the marker tube. In addition, since the catheter itself is to be inserted into the blood vessel, the surface should be kept smooth, and in order to allow doctors to identify different types of catheters, the marking tube 109 can also be engraved or printed with the model identification of the catheter etc., for doctors to better identify catheters.

Considering that the size of the heart of different people will be different, and in addition, although the structure of the human heart is roughly the same, there will be subtle differences. Therefore, in order to ensure the accuracy of the measurement, there are generally multiple electrodes 103, among which A part of the electrodes 103 can be used to measure the current signal of the right ventricle, while another part of the electrodes 103 can be used to measure the current signal of the His bundle. Therefore, the electrodes 103 include: a His beam electrode 1031 for detecting a His beam current signal and a right ventricle electrode 1032 for detecting a right ventricle electrode; the His beam electrode 1031 and the right ventricle electrode 1032 both have at least Two; the distance between adjacent His beam electrodes 1031 is equal; the distance between adjacent right ventricle electrodes 1032 is equal (when there are multiple right ventricle electrodes).

In actual implementation, when the electrode 103 is specifically arranged, one end electrode can be arranged at the end of the catheter, and then multiple ring electrodes can be arranged on the tube body of the catheter. The terminal electrode can be in contact with the inner wall of the heart. While performing the measurement function, it also plays a role in stabilizing the catheter, so that during the measurement, the catheter will not move due to the impact of the blood in the heart, resulting in inaccurate measurement results. The ring electrode is pasted on the part to be measured to play the role of measurement. The electrode 103 located at the farthest end (i.e., the terminal electrode) itself is to be affixed on the ventricular wall of the right ventricle. In order to ensure the accuracy of the measurement, a ring electrode is additionally set, which together with the terminal electrode is called the right ventricular electrode, and is used to measure the right ventricle. Electrical signals of the ventricle. And because there are small differences in the human heart structure itself, this difference may be reflected in the distance between the His bundle and the right ventricle. Therefore, there are multiple His bundle electrodes 1031, for example, the His bundle electrode 1031 Set to 3, 4, 5 or 6, when the catheter is placed in the human body, only a part of the multiple His bundle electrodes 1031 may be attached to the His bundle, thus ensuring the The provided cardiac electrical information mapping electrode can have a wider range of applications. At the same time, the more the number of His beam electrodes 1031 that can perform the measurement function, the more the measurement accuracy can be improved and the measurement error can be reduced.

In addition, in order to make the cardiac electrical information mapping electrodes have a wider range of applications, the electrodes 103 can be detachably connected to the catheter, or the specific position of the electrodes 103 on the catheter 101 can be adjusted.

In actual implementation, installation grooves for installing the electrodes 103 can be provided at different positions of the conduit; when the installation groove is not in use, it is filled with a clip similar in structure to the electrode to ensure that the surface of the conduit is smooth. When in use, the clip is removed, and the electrode 103 is installed on it. At the same time, the electrode 103 is also detachably connected to the lead 105. The lead 105 and the electrode 103 are provided with slots and pins that cooperate with each other. When the electrode 103 is installed in the installation groove, the pins are inserted into the slot. , to ensure that the wire 105 and the electrode 103 are connected to each other.

Generally, the width of the His beam electrode is 0.95-1.05mm;

The width of the right ventricle electrode is 0.95-1.05mm, and/or, the width of the right ventricle electrode is 1.8-2.2mm;

And/or, the distance between adjacent His beam electrodes is: 4.5-5.5 mm; preferably, the distance between the His beam electrodes is 5 mm.

And/or, the shortest distance between the His bundle electrode and the right ventricle electrode is: 37-39mm;

And/or, the distance between the electrodes of the right ventricle is: 9.5-10.5mm;

And/or, the diameter of the catheter is 1.8-2.2mm;

And/or, the length of the catheter is: 1150-1250mm.

The cardiac electrical information mapping device of this specification can be applied to most people except children and patients with certain special diseases that cause the heart to become enlarged.

Beneficial effect:

1. Use fewer catheters, reduce the cost of surgery, and then reduce the cost of examination for patients.

2. The same inspection reduces the number of catheters, thereby reducing the difficulty and time of the operation, and the patient suffers less pain.

3. Fewer catheters make the operation less time-consuming, so that the patient's exposure time under X-ray is less, thereby reducing the impact of X-ray on the human body.

4. The catheter is detachable, and the same connector 104 can be connected with various types of catheters, which further reduces the cost.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A cardiac electrical information mapping electrode, which is used in the detection of His bundle and right ventricular electrical signals, is characterized in that it comprises: a catheter; one end of the catheter is provided with an electrode, and the electrode is connected to the catheter coaxial; The other end of the conduit is provided with a connector; There are multiple electrodes, and the multiple electrodes are used to obtain electrical signals at different positions of the heart. 2. The cardiac electrical information mapping electrode according to claim 1, wherein a plurality of wires that are not connected to each other are arranged in the catheter; Each of the electrodes is respectively connected with a different wire. 3 . The cardiac electrical information mapping electrode according to claim 2 , wherein a cavity is provided in the catheter, and the wire is arranged in the cavity. 4 . 4. The cardiac electrical information mapping electrode according to any one of claims 1-3, wherein the catheter is a smooth flexible catheter; The flexible catheter can be bent along the path of the blood vessel in the blood vessel of the human body. 5. The cardiac electrical information mapping electrode according to claim 4, characterized in that, a marker tube is also arranged between the catheter and the connector; A plurality of the electrodes are arranged on the end of the catheter away from the marking tube; The marker tube is a rigid conduit. 6. The cardiac electrical information mapping electrode according to any one of claims 1-3, wherein the electrodes include: a His beam electrode for detecting a His beam current signal and an electrode for detecting a right ventricle the right ventricular electrode; There are at least two His bundle electrodes and the right ventricle electrodes; The distance between the adjacent His beam electrodes is equal; The distances between the adjacent right ventricle electrodes are equal. 7. The cardiac electrical information mapping electrode according to claim 6, characterized in that, the width of the His beam electrode is 0.95-1.05mm; The width of the right ventricle electrode is 0.95-1.05mm, and/or, the width of the right ventricle electrode is 1.8-2.2mm; And/or, the distance between adjacent His beam electrodes is: 4.5-5.5mm; And/or, the shortest distance between the His bundle electrode and the right ventricle electrode is: 37-39mm; And/or, the distance between the electrodes of the right ventricle is: 9.5-10.5mm; And/or, the diameter of the catheter is 1.8-2.2mm; And/or, the length of the catheter is: 1150-1250mm. 8. The cardiac electrical information mapping electrode according to any one of claims 1-3, wherein the catheter is detachably connected to the connector. 9. The cardiac electrical information mapping electrode according to claim 8, wherein a plurality of grooves communicating with the catheter are arranged inside the connector; Each groove is provided with connecting pins; Each of the wires extends into one of the grooves, and is detachably connected with the connecting pins in the grooves. 10. The cardiac electrical information mapping electrode according to claim 9, characterized in that, one end of the wire extending into the groove is also connected with a connector, and the connecting pin can be inserted into the connector middle.