CN219846553U - Probe for monitoring esophagus temperature and esophagus temperature monitoring system - Google Patents
Probe for monitoring esophagus temperature and esophagus temperature monitoring system Download PDFInfo
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- CN219846553U CN219846553U CN202320235945.6U CN202320235945U CN219846553U CN 219846553 U CN219846553 U CN 219846553U CN 202320235945 U CN202320235945 U CN 202320235945U CN 219846553 U CN219846553 U CN 219846553U
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- 210000003238 esophagus Anatomy 0.000 title claims abstract description 67
- 239000000523 sample Substances 0.000 title claims abstract description 60
- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims 1
- 238000007674 radiofrequency ablation Methods 0.000 description 16
- 230000006378 damage Effects 0.000 description 11
- 238000002679 ablation Methods 0.000 description 10
- 210000005246 left atrium Anatomy 0.000 description 10
- 210000003492 pulmonary vein Anatomy 0.000 description 7
- 238000002955 isolation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 206010003658 Atrial Fibrillation Diseases 0.000 description 4
- 230000001746 atrial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000021302 gastroesophageal reflux disease Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002107 myocardial effect Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000006687 Esophageal Fistula Diseases 0.000 description 1
- 206010065835 Oesophageal fistula Diseases 0.000 description 1
- 229920002614 Polyether block amide Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000013153 catheter ablation Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000013152 interventional procedure Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
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- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a probe for monitoring esophagus temperature and an esophagus temperature monitoring system, comprising: a catheter, the front end of which is capable of being placed in the esophagus of a patient; the temperature sensor is fixedly arranged in the front end of the catheter and is used for measuring the temperature of the esophagus of a patient; a position sensor fixedly arranged in the front end of the catheter. Compared with the prior art, the probe for monitoring the esophagus temperature and the esophagus temperature monitoring system provided by the utility model are mainly used for interventional operation, and can be used for determining the position of the probe in the esophagus of a patient and monitoring the temperature of the esophagus.
Description
Technical Field
The utility model relates to the technical field of esophagus detection, in particular to a probe for esophagus temperature monitoring and an esophagus temperature monitoring system.
Background
In atrial fibrillation treatment surgery, an operator usually adopts radio frequency ablation to perform point-by-point ablation on pulmonary veins to form a completed closed loop, so that the treatment effect of pulmonary vein electrical conduction isolation is achieved. Thus, the ability of the lesion to achieve penetration through the myocardial wall of the left atrium is a necessary requirement for achieving electrically conductive isolation, and often the operator is concerned about adjacent tissue around the linear region of the left atrial internal circumferential pulmonary vein isolation to avoid damaging important adjacent tissue as much as possible.
The esophagus is located behind the left atrium and results in a variable path relative to the left atrium adjacent to the right or left pulmonary vein or the back wall of the heart. Thus, when ablation is performed anywhere in the posterior left atrium, there is a risk of esophageal damage due to high temperature occurrence, after which the esophagus is perforated with the left atrium, a serious complication of extremely high mortality.
To prevent such damage, a special esophageal temperature probe is often used in the prior art to detect the temperature of the esophagus, and the operator knows the ablation parameters based on the esophageal head temperature detection result. However, the temperature detection result is fed back by the esophageal temperature probe.
Therefore, there is a need for a probe for esophageal temperature monitoring and esophageal temperature monitoring system, which are mainly used in interventional procedures, and can monitor the temperature of the esophagus while determining the position of the probe in the esophagus of a patient.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a probe for monitoring the temperature of an esophagus and an esophagus temperature monitoring system, which are mainly used for interventional operations, and can monitor the temperature of the esophagus while determining the position of the probe in the esophagus of a patient.
The technical scheme provided by the utility model is as follows:
a probe for esophageal temperature monitoring, comprising:
a catheter, the front end of which is capable of being placed in the esophagus of a patient;
the temperature sensor is fixedly arranged in the front end of the catheter and is used for measuring the temperature of the esophagus of a patient;
a position sensor fixedly arranged in the front end of the catheter.
Preferably, at least three temperature sensors are provided, and the temperature sensors are uniformly spaced around the circumference of the center line of the catheter.
Preferably, the position sensor is provided with one, and the position sensor is provided coaxially with the center line of the catheter.
Preferably, the position sensors are provided in at least two, and the position sensors are provided at uniform intervals around the circumference of the center line of the catheter.
Preferably, at least two temperature sensors are provided, and the temperature sensors are uniformly spaced along the length direction of the central line of the catheter.
Preferably, the position sensor is in a spiral shape, and the position sensor is sleeved outside the temperature sensor.
Preferably, the position sensor is in particular a magnetic positioning sensor.
Preferably, the conduit is made of a high molecular weight polymeric material that is resistant to acid corrosion.
Preferably, the method further comprises:
and the plug is arranged at the rear end of the catheter and used for being matched with the three-dimensional navigation system.
An esophageal temperature monitoring system comprising a three-dimensional navigation system, a radio frequency catheter, and the probe for esophageal temperature monitoring of any of the above;
wherein the probe is electrically connected with the radio frequency catheter.
The probe for monitoring the esophagus temperature is provided with the catheter and the temperature sensor, wherein the front end of the catheter can be placed in the esophagus of a patient, the temperature sensor is arranged in the front end of the catheter, the temperature of the esophagus of the patient is measured through the temperature sensor, the change of the temperature of the esophagus is monitored in real time, ablation guidance is provided for radio frequency ablation of interventional operation, the damage of the esophagus caused by the radio frequency ablation operation is prevented, and the probe is integrated into a three-dimensional navigation system, and the position of the probe for monitoring the esophagus temperature is identified and positioned under non-perspective through the position sensor and the three-dimensional navigation system. Compared with the prior art, the probe for monitoring the esophagus temperature is mainly used in interventional operations, and can monitor the temperature of the esophagus while determining the position of the probe in the esophagus of a patient. The embodiment of the utility model also provides an esophagus temperature monitoring system, which comprises the probe for esophagus temperature monitoring, and the technical effects can be achieved as well, and further description is omitted here.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first structure of a probe for esophageal temperature monitoring according to an embodiment of the utility model;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of a second structure of a probe for esophageal temperature monitoring according to an embodiment of the utility model;
FIG. 4 is a schematic view of a third configuration of a probe for esophageal temperature monitoring according to an embodiment of the utility model;
fig. 5 is a schematic structural diagram of a plug according to an embodiment of the present utility model;
fig. 6 is a left side view of fig. 5.
Reference numerals: 1. a conduit; 2. a temperature sensor; 3. position sensor, 4 plugs.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof.
The embodiment of the utility model is written in a progressive manner.
As shown in fig. 1 to 6, an embodiment of the present utility model provides a probe for esophageal temperature monitoring, including: a catheter 1, the front end of the catheter 1 being capable of being placed in the esophagus of a patient; a temperature sensor 2 fixedly arranged in the front end of the catheter 1 and used for measuring the temperature of the esophagus of a patient; a position sensor 3 fixedly provided in the interior of the distal end of the catheter 1.
In atrial fibrillation treatment surgery, an operator usually adopts radio frequency ablation to perform point-by-point ablation on pulmonary veins to form a completed closed loop, so that the treatment effect of pulmonary vein electrical conduction isolation is achieved. The ability of the lesion of the radiofrequency ablation to penetrate the myocardial wall of the left atrium is a necessary requirement to achieve an electrically conductive isolation effect, and often the operator is concerned about adjacent tissue around the linear region of the left atrial internal circumferential pulmonary vein isolation, avoiding as much as possible the lesion of important adjacent tissue. How to complete the transmural injury to the left atrial myocardium without transmural injury to surrounding adjacent critical tissue is an important concern in atrial fibrillation rf ablation procedures.
It should be noted that radio frequency ablation is an energy mode of generating heat by electric current, and can heat target tissue, and finally achieve tissue necrosis, thereby achieving the purpose of treatment.
In order to avoid the damage to the esophagus caused by ablation, a temperature monitoring probe is implanted at the position of the esophagus close to the rear wall of the left atrium to monitor the temperature change of the esophagus in real time, if the temperature of the esophagus is found to be increased in the atrial fibrillation ablation process, the temperature is too high, the damage to the esophagus caused by radiofrequency ablation is prompted to possibly damage the esophagus, the operator is reminded of paying attention in time, and the occurrence of atrial esophageal fistula can be obviously reduced or even avoided.
When the existing esophageal temperature monitoring probe monitors the esophageal temperature of a patient, an operator is required to implant the esophageal temperature monitoring probe from the oral cavity of the patient in an X-ray perspective mode, under the perspective condition, whether the esophageal temperature of the patient reaches the height of the rear wall of the left atrium or not is primarily judged, and the temperature of the esophagus of the patient is monitored through data fed back by the temperature monitoring probe. When a user performs radio frequency ablation operation, the left atrium is required to be modeled through a three-dimensional navigation system, under the guidance of the three-dimensional navigation system, the user performs radio frequency ablation on a focus through the ablation catheter 1, and the user is required to pay attention to the three-dimensional navigation system, and is also required to pay attention to an X-ray perspective system and temperature monitoring equipment, so that inconvenience is brought to the operation in the process.
The probe for esophageal temperature monitoring provided by the utility model is provided with the catheter 1 and the temperature sensor 2, wherein the front end of the catheter 1 can be placed in the esophagus of a patient, the temperature sensor 2 is arranged in the front end of the catheter 1, the temperature of the esophagus of the patient is measured through the temperature sensor 2, the change of the temperature of the esophagus is monitored in real time, ablation guidance is provided for radiofrequency ablation of interventional operation, the damage of the esophagus caused by radiofrequency ablation operation is prevented, and the probe for esophageal temperature monitoring is further provided with the position sensor 3 which is arranged in the front end of the catheter, and can realize three-dimensional navigation of the probe for esophageal temperature monitoring by matching the position sensor 3 with a three-dimensional navigation system, so that the identification and the positioning of a position space under non-perspective can be realized, and the position of the probe in the esophagus of the patient can be determined. Compared with the prior art, the probe for monitoring the esophagus temperature is mainly used in interventional operations, can be integrated into a three-dimensional navigation system, can monitor the temperature of the esophagus while determining the position of the probe in the esophagus of a patient, and is used for guiding radio frequency ablation of interventional operations.
In the above-described structure, as a first embodiment, as shown in fig. 1 and 2, at least three temperature sensors 2 are provided in the example of the present utility model, and the temperature sensors 2 are uniformly spaced around the circumference of the center line of the catheter 1. This placement of the temperature sensors 2 ensures that at least one of the temperature sensors 2 will fit against the back wall side of the esophagus adjacent the left atrium, regardless of the angle at which the catheter 1 is placed into the patient's esophagus.
Furthermore, in the embodiment of the utility model, the position sensor 3 is provided with one, the position sensor 3 and the catheter 1 are coaxially arranged, the position of the probe can be positioned by adopting the least interfaces of the position sensor 3, the cost is saved, the shape and the position of the catheter 1 can be changed when the catheter 1 is placed into the esophagus of a patient, the position sensor 3 and the catheter 1 are concentrically arranged, and the positioning of the position is more accurate.
In order to prevent inaccurate positioning of the position sensors 3, the position sensors 3 in the embodiment of the present utility model are uniformly spaced around the circumference of the center of the catheter 1, and the relative positions between the catheter 1 and the radio frequency catheter are conveniently determined by the operator through the plurality of position sensors 3.
As a second embodiment, as shown in fig. 3, at least two temperature sensors 2 are provided in the embodiment of the present utility model, and the temperature sensors 2 are uniformly spaced along the axial direction of the catheter 1. By arranging the temperature sensors 2 at intervals in the axial direction of the catheter 1, the length of the esophagus to be monitored is longer.
More specifically, the position sensors 3 in the drawings of the present utility model are provided one, and the position sensors 3 are provided concentrically with the catheter 1, and the temperature sensors 2 are provided three, which are provided at regular intervals in the axial direction of the catheter.
As a third embodiment, as shown in fig. 4, in order to facilitate the placement of the distal end of the catheter 1 in the esophagus of the patient, the catheter 1 is made of a flexible material, and the hardness of the portion where the position sensor 3 and the temperature sensor 2 are placed is large, for example, the placement length is too long, which may cause the deformation of the positions where the position sensor 3 and the temperature sensor 2 are placed to be large, resulting in damage to the position sensor 3 or the temperature sensor 2, and in order to prevent the placement position of the position sensor 3 and the temperature sensor 2 from being too long. The position sensor 3 in the embodiment of the utility model is specifically in a spiral structure, and the position sensor 3 is sleeved outside the temperature sensor 2. The position sensor 3 is arranged in a spiral structure and is placed along the inner wall of the catheter 1, the middle of the position sensor 3 is of a hollow structure, the temperature sensor 2 is placed in the middle of the position sensor 3, and the length of the position sensor 3 placed in the catheter 1 is shortened by arranging the position sensor 3 in the spiral structure.
In the above structure, as one of the implementation manners, the three-dimensional navigation adopted in the embodiment of the present utility model is specifically a magneto-electric fusion HT9000 three-dimensional navigation system, and the HT9000 three-dimensional navigation system is used in a radio frequency catheter ablation procedure of a patient, so that in order to facilitate the position information acquired by the position sensor 3 to be better integrated with the HT9000 three-dimensional navigation system, as one of the implementation manners, the position sensor 3 in the embodiment of the present utility model is specifically a magnetic positioning sensor.
In the above structure, as one implementation, as shown in fig. 5 and 6, the catheter 1 in the embodiment of the present utility model further includes a plug 4, where the plug 4 is disposed at the rear end of the catheter 1 and is used for connecting with a three-dimensional navigation system, and transmitting the data collected by the position sensor 3 and the temperature sensor 2 to the three-dimensional navigation system.
In the above-described structure, as one of the embodiments, the guide pipe 1 in the example of the utility model is made of an acid corrosion-resistant material. Avoiding gastric acid reflux corrosion of the probe in some patients with gastroesophageal reflux. In addition, to avoid placement of the catheter 1 into the patient's esophagus to reduce damage and scratching of the esophageal lining, the catheter 1 is often made of a flexible material. More specifically, the catheter 1 in the embodiment of the present utility model is made of any one of PU polyurethane, pebax polyether block polyamide, PA polyamide.
In the above structure, as one implementation mode, the utility model also provides an esophagus temperature monitoring system, which comprises a three-dimensional navigation system and the probe for esophagus temperature monitoring. By integrating the data monitored by the probe into the three-dimensional navigation system, the problem that a worker needs to consider the real-time information of the visual navigation system and the temperature monitor in the radio frequency ablation operation is avoided, and the information integration level of the worker is improved.
As a more preferable implementation mode, in the prior art, an operator guides the radio frequency catheter to perform radio frequency ablation based on the temperature detected by the temperature sensor 2, at present, early warning of the temperature is often judged by the operator, but feedback and display of the temperature sensor 2 are delayed, if the operator does not notice the change of the temperature of the esophagus during radio frequency ablation, the esophagus is easily damaged, as one implementation mode, the esophagus temperature monitoring system in the embodiment of the utility model further comprises the radio frequency catheter connected with the three-dimensional navigation system, wherein the temperature sensor 2 is electrically connected with the radio frequency catheter, when the temperature detected by the temperature sensor 2 is higher than a preset value, the radio frequency catheter stops working, the feedback time of the experience of the operator is reduced, the safety of radio frequency ablation of the radio frequency catheter is ensured, and the occurrence rate of complications is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A probe for esophageal temperature monitoring, comprising:
a catheter (1), the front end of the catheter (1) being capable of being placed in the esophagus of a patient;
a temperature sensor (2) fixedly arranged in the front end of the catheter (1) and used for measuring the temperature of the esophagus of a patient;
a position sensor (3) fixedly arranged in the front end of the catheter (1).
2. The probe for esophageal temperature monitoring of claim 1, wherein the probe comprises a probe body,
the temperature sensors (2) are at least three, and the temperature sensors (2) are uniformly arranged at intervals around the circumference of the central line of the catheter (1).
3. The probe for esophageal temperature monitoring of claim 2, wherein the probe comprises a probe body,
the position sensor (3) is provided with one, and the position sensor (3) is coaxially arranged with the central line of the catheter (1).
4. The probe for esophageal temperature monitoring of claim 2, wherein the probe comprises a probe body,
the position sensors (3) are at least two, and the position sensors (3) are uniformly arranged at intervals around the circumference of the central line of the catheter (1).
5. The probe for esophageal temperature monitoring of claim 1, wherein the probe comprises a probe body,
at least two temperature sensors (2) are arranged, and the temperature sensors (2) are uniformly arranged at intervals along the length direction of the central line of the catheter (1).
6. The probe for esophageal temperature monitoring of claim 1, wherein the probe comprises a probe body,
the position sensor (3) is particularly spiral, and the position sensor (3) is sleeved on the outer side of the temperature sensor (2).
7. The probe for esophageal temperature monitoring as claimed in any of claims 1-6, wherein,
the position sensor (3) is in particular a magnetic positioning sensor.
8. The probe for esophageal temperature monitoring as claimed in any of claims 1-6, wherein,
the conduit (1) is made of an acid corrosion resistant high molecular polymer material.
9. The probe for esophageal temperature monitoring as claimed in any of claims 1-6, wherein,
further comprises:
and the plug (4) is arranged at the rear end of the catheter (1) and is used for being matched with a three-dimensional navigation system.
10. An oesophageal temperature monitoring system comprising a three dimensional navigation system, a radio frequency catheter and a probe for oesophageal temperature monitoring as claimed in any one of claims 1 to 9;
wherein the probe is electrically connected with the radio frequency catheter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320235945.6U CN219846553U (en) | 2023-02-16 | 2023-02-16 | Probe for monitoring esophagus temperature and esophagus temperature monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320235945.6U CN219846553U (en) | 2023-02-16 | 2023-02-16 | Probe for monitoring esophagus temperature and esophagus temperature monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN219846553U true CN219846553U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320235945.6U Active CN219846553U (en) | 2023-02-16 | 2023-02-16 | Probe for monitoring esophagus temperature and esophagus temperature monitoring system |
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| Country | Link |
|---|---|
| CN (1) | CN219846553U (en) |
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- 2023-02-16 CN CN202320235945.6U patent/CN219846553U/en active Active
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