CN218651995U - Ablation probe - Google Patents
Ablation probe Download PDFInfo
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- CN218651995U CN218651995U CN202221940380.3U CN202221940380U CN218651995U CN 218651995 U CN218651995 U CN 218651995U CN 202221940380 U CN202221940380 U CN 202221940380U CN 218651995 U CN218651995 U CN 218651995U
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Abstract
The utility model relates to the technical field of medical instruments, and provides an ablation probe, which comprises a probe body, a camera shooting mechanism and a thermocouple; a cavity is arranged in the probe body; one end of the probe body is used for extending into biological tissues to be ablated; one end of the probe body is provided with a transparent window; the camera of the camera mechanism is arranged in the cavity and faces the transparent window; the camera shooting mechanism is used for collecting image information of biological tissues outside the probe body through the transparent window; the thermocouple is provided with a measuring end and a cold end, the measuring end is arranged close to one end of the probe body, and the measuring end extends out of the probe body from the cavity; the measuring end is respectively connected with the cold end and a first electrical interface of the measuring instrument, the cold end is connected with a second electrical interface of the measuring instrument, and the measuring end, the cold end and the measuring instrument form a closed loop; the utility model discloses can accurately will melt the probe puncture to the biological tissue of treating to melt to can detect the temperature of biological tissue at the ablation in-process, guarantee to melt the treatment of treatment.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to an ablation probe.
Background
The tumor ablation therapy has the advantages of minimal invasion, safety, high operability, good repeatability and the like, and is widely applied to clinical therapy of tumors.
The ablation treatment method comprises the steps of puncturing an ablation probe to a designated ablation area, transmitting radio frequency energy or microwave energy to biological tissues of the ablation area through the ablation probe, and raising the temperature of the biological tissues so as to achieve the purpose of ablating the biological tissues at high temperature; the existing ablation probe needs to be guided to a designated ablation region by means of CT, color Doppler ultrasound, ultrasound or computed tomography imaging in the process of puncturing, the method for guiding the ablation probe to puncture is complex in operation and low in accuracy, and the ablation probe cannot accurately reach the designated ablation region; in the process of heating and ablation, the ablation probe has the problems that the temperature of biological tissues is too low and the biological tissues cannot be ablated, and the temperature of the biological tissues is too high and the biological tissues are carbonized and damaged, so that the ablation treatment effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ablation probe, which is used for solving or improving the problem that the existing ablation probe has poor ablation treatment effect due to low puncture precision and low biological tissue temperature control precision in the process of ablation treatment.
The utility model provides an ablation probe, include: the probe comprises a probe body, a camera shooting mechanism and a thermocouple; a cavity is arranged in the probe body; one end of the probe body is used for extending into biological tissues to be ablated; one end of the probe body is provided with a transparent window; the camera of the camera mechanism is arranged in the cavity and faces the transparent window; the camera shooting mechanism is used for collecting image information of biological tissues outside the probe body through the transparent window; the thermocouple is provided with a measuring end and a cold end, the measuring end is arranged close to one end of the probe body, and the measuring end extends out of the probe body from the cavity; the measuring end is respectively connected with the cold end and a first electrical interface of the measuring instrument, the cold end is electrically connected with a second electrical interface of the measuring instrument, and the measuring end, the cold end and the measuring instrument form a closed loop.
According to the ablation probe provided by the utility model, one end of the probe body is provided with a camera hole, the camera hole is communicated with the cavity, and one side of the camera hole, which is far away from the cavity, is hermetically connected with the transparent cover; the camera faces the camera hole.
According to the utility model provides a pair of melt probe, the one end of probe body is equipped with the temperature measurement hole, the temperature measurement hole with the cavity intercommunication, the measuring end passes through the temperature measurement hole stretches out the probe is originally external.
According to the utility model provides a pair of ablation probe, the hole of making a video recording is perpendicular to projection on the plane of the axis of probe body is first projection, the hole of measuring temperature is perpendicular to projection on the plane of the axis of probe body is the second projection, first projection with the second projection for the central angle that the axis of probe body formed equals 180 degrees.
According to the utility model provides a pair of ablation probe, the hole of making a video recording is perpendicular to projection on the plane of the axis of probe body is first projection, the hole of measuring temperature is perpendicular to projection on the plane of the axis of probe body is the second projection, first projection with the second projection for the central angle that the axis of probe body formed is less than or equal to 90 degrees.
According to the utility model provides a pair of melt probe, the hole of making a video recording with distance between the needle point of the one end of probe body is first distance, the temperature measurement hole with distance between the needle point is the second distance, first distance equals the second distance.
According to the utility model provides a pair of melt probe, the hole of making a video recording with distance between the needle point of the one end of probe body is first distance, the temperature measurement hole with distance between the needle point is the second distance, first distance is greater than the second distance.
According to the utility model provides a pair of ablation probe, the hole of making a video recording with distance between the needle point of the one end of probe body is first distance, the temperature measurement hole with distance between the needle point is the second distance, first distance is less than the second distance.
According to the ablation probe provided by the utility model, one end of the probe body is provided with a camera hole, the camera hole is communicated with the cavity, a transparent body is arranged in the camera hole, and the transparent body is connected with the inner side wall of the camera hole; the camera faces the camera hole.
According to the utility model provides a pair of ablation probe, the probe body includes: a first segment, a transparent segment, and a second segment; one end of the first segment is connected with one end of the transparent segment, and the other end of the transparent segment is connected with one end of the second segment; the camera is directed towards the transparent segment. The utility model provides an ablation probe, through setting up camera shooting mechanism and thermocouple on the probe body, thus can guide the probe body to the biological tissue that treats to melt accurately, and in the course of melting, monitor the temperature of the biological tissue in real time, avoid the biological tissue because the phenomenon of carbonization appears in the high temperature; in the process of extending the ablation probe into the biological tissue, the camera shooting mechanism is started, the camera of the camera shooting mechanism collects image information of the biological tissue outside the probe body in real time through the transparent window, and an operator can conveniently judge whether the probe body reaches the biological tissue to be ablated according to the image information so as to realize accurate puncture of the probe body; after the probe body stretches into the biological tissue to be ablated, an electric generator electrically connected with the probe body is started, radio frequency current is introduced into the probe body through the electric generator, under the action of the radio frequency current, a rapidly-changing microwave electromagnetic field is generated around the probe body, the rapidly-changing microwave electromagnetic field enables water molecules, protein molecules and various ions in the biological tissue to generate high-speed vibration and mutual friction, so that the temperature of the biological tissue around the probe body is increased, the temperature of the biological tissue is transmitted to the measuring end of the thermocouple, so that a temperature difference is formed between the measuring end and the cold end of the thermocouple, the larger the temperature difference is, the larger the electromotive force is, under the condition that the temperature of the cold end is unchanged, the temperature of the measuring end can be read by an operator through a measuring instrument, the temperature of the biological tissue can be monitored in real time, when the temperature is too low, the power of the electric generator is increased, so that the ablation effect of ablation is ensured, when the temperature is too high, the power of the electric generator is reduced, so that the high-temperature carbonization of the biological tissue is avoided, the probe body can be accurately guided to the biological tissue to be ablated through the imaging mechanism, and the treatment effect of the biological tissue is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is one of the schematic structural views of an ablation probe provided by the present invention;
fig. 2 is a second schematic structural view of an ablation probe according to the present invention;
fig. 3 is a schematic structural diagram of the transparent cover provided by the present invention;
fig. 4 is a third schematic view of an ablation probe according to the present invention;
fig. 5 is a fourth schematic structural view of an ablation probe provided by the present invention;
fig. 6 is a fifth schematic structural view of an ablation probe provided by the present invention;
fig. 7 is a sixth schematic structural view of an ablation probe provided by the present invention;
fig. 8 is a seventh schematic structural view of an ablation probe provided by the present invention;
reference numerals:
1: a probe body; 11: a camera hole; 12: a temperature measuring hole; 2: a thermocouple; 3: a camera; 4: a transparent cover.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.
An ablation probe according to the present invention is described below with reference to fig. 1 to 8.
As shown in fig. 1, the ablation probe of the present embodiment includes: probe body 1, camera shooting mechanism and thermocouple 2.
One end of the probe body 1 is used for extending into a biological tissue to be ablated; one end of the probe body 1 is provided with a transparent window, namely, one end of the probe body 1, which is used for extending into the biological tissue with ablation, is provided with a transparent window; a cavity is arranged in the probe body 1, a camera 3 of the camera mechanism is arranged in the cavity, the camera 3 faces the transparent window, light rays outside the probe body 1 can be incident to the camera 3 through the transparent window, and therefore the camera mechanism collects image information of biological tissues outside the probe body 1 through the transparent window; the thermocouple 2 is provided with a measuring end and a cold end, the measuring end is arranged close to one end of the probe body 1, the measuring end extends out of the probe body 1 from the cavity, namely, the measuring end penetrates through the probe body 1, and the cold end can be arranged in the cavity or outside the cavity; the measuring terminal respectively with the cold junction and measuring instrument's first electrical interface connection, the second electrical interface connection of cold junction and measuring instrument, measuring terminal, cold junction and measuring instrument form closed loop.
Specifically, the ablation probe shown in this embodiment is provided with the camera mechanism and the thermocouple 2 on the probe body 1, so that the probe body 1 can be accurately guided to the biological tissue to be ablated, and the temperature of the biological tissue is monitored in real time during the ablation process, thereby avoiding the phenomenon that the biological tissue is carbonized due to over-high temperature; in the process of extending the ablation probe into the biological tissue, the camera mechanism is started, the camera 3 of the camera mechanism collects image information of the biological tissue outside the probe body 1 in real time through the transparent window, and an operator can conveniently judge whether the probe body 1 reaches the biological tissue to be ablated according to the image information so as to realize accurate puncture of the probe body 1; after the probe body 1 extends into a biological tissue to be ablated, an electric generator electrically connected with the probe body 1 is started, radio frequency current is introduced to the probe body 1 through the electric generator, under the action of the radio frequency current, a rapidly-changing microwave electromagnetic field is generated around the probe body 1, water molecules, protein molecules and various ions in the biological tissue generate high-speed vibration and rub with each other through the rapidly-changing microwave electromagnetic field, so that the temperature of the biological tissue around the probe body 1 is increased, the temperature of the biological tissue is transmitted to a measuring end of a thermocouple 2, so that a temperature difference is formed between the measuring end and a cold end of the thermocouple 2, electromotive force is generated in a closed loop, the larger the electromotive force is, under the condition that the temperature of the cold end is unchanged, an operator can read the temperature of the measuring end through a measuring instrument, the temperature of the biological tissue is monitored in real time, when the temperature is too low, the power of the electric generator is increased to ensure the ablation effect, when the temperature is too high, the power of the electric generator is reduced to avoid high-temperature carbonization of the biological tissue, the ablation probe shown in the embodiment can accurately guide the ablation probe body 1 to the biological tissue to be ablated through a camera mechanism, and meanwhile, the treatment effect of the biological tissue can be detected.
It should be noted that the camera mechanism can be a nerve nano camera manufactured by philips sea (Felix Heide) team of princeton university or a micro camera such as a mobile phone; the thermocouple 2 may be a platinum wire thermocouple; the material of the probe body can be 304 stainless steel.
In some embodiments, as shown in fig. 1 to 3, one end of the probe body 1 shown in this embodiment is provided with a camera hole 11, the camera hole 11 is communicated with the cavity, and one end of the camera hole 11 departing from the cavity is hermetically connected with the transparent cover 4; the camera 3 faces the camera hole 11.
Specifically, the transparent cover 4 is hemispherical, the camera shooting hole 11 and the transparent cover 4 jointly form a transparent window, the transparent cover 4 can be bonded with the camera shooting hole 11 through thermal gel, and the transparent cover 4 can protect the camera 3 in the cavity.
The transparent window may be formed in the following two ways, in addition to the above-described imaging hole 11 and transparent cover 4.
One end of the probe body 1 can be provided with a camera hole 11, and the camera 3 faces the camera hole 11; the hole of making a video recording 11 and cavity intercommunication are equipped with the transparent body in the hole of making a video recording 11, and the transparent body is connected with the inside wall of hole of making a video recording 11, makes a video recording hole 11 and transparent body form transparent window jointly promptly, and the light outside probe body 1 can be through the transparent body incident to the camera, and simultaneously, the transparent body can prevent that the tissue fluid of biological tissue from getting into the cavity through the hole of making a video recording.
In addition, the probe body can be arranged into three sections, namely a first section, a transparent section and a second section; one end of the first section is connected with one end of the transparent section, the other end of the transparent section is connected with one end of the second section, and the needle tip of the probe body is formed at the other end of the second section; the camera faces the transparent segment; i.e. the transparent window is formed in the transparent segment.
In some embodiments, as shown in fig. 1 and fig. 2, one end of the probe body 1 shown in this embodiment is provided with a temperature measuring hole 12, the temperature measuring hole 12 is communicated with the cavity, and the measuring end of the thermocouple 2 extends out of the probe body 1 through the temperature measuring hole 12.
Specifically, the measuring terminal is used for stretching out probe body 1 and contacts with biological tissue outward, and biological tissue's temperature transmits to the measuring terminal to form the difference in temperature between measuring terminal and cold junction, and then survey the temperature of measuring terminal through the electromotive force that the difference in temperature formed.
In some embodiments, a projection of the imaging hole 11 shown in the present embodiment on a plane perpendicular to the axis of the probe body 1 is a first projection, a projection of the temperature measurement hole 12 on a plane perpendicular to the axis of the probe body 1 is a second projection, and a central angle formed by the first projection and the second projection with respect to the axis of the probe body 1 is equal to 180 degrees.
Specifically, the camera hole 11 and the temperature measurement hole 12 are arranged oppositely, that is, a connecting line between the camera hole 11 and the temperature measurement hole 12 intersects with an axis of the probe body 1.
In some embodiments, a projection of the imaging hole 11 shown in the present embodiment on a plane perpendicular to the axis of the probe body 1 is a first projection, a projection of the temperature measurement hole 12 on a plane perpendicular to the axis of the probe body 1 is a second projection, and a central angle formed by the first projection and the second projection with respect to the axis of the probe body 1 is equal to or less than 90 degrees.
Specifically, the camera hole 11 and the temperature measurement hole 12 are located on the same side of the axis of the probe body 1, that is, the camera hole 11 is closer to the temperature measurement hole 12.
Further, as shown in fig. 1 and 4 to 8, on the basis that the central angle between the first projection and the second projection is 180 degrees or less and 90 degrees, the distance between the imaging hole 11 and the tip of the one end of the probe body 1 is a first distance, and the distance between the temperature measuring hole 12 and the tip is a second distance; the first distance is equal to the second distance, or the first distance is greater than the second distance, or the first distance is smaller than the second distance.
In one embodiment, as shown in fig. 1, the central angle between the first projection and the second projection is 180 degrees, and the first distance is equal to the second distance, i.e. the camera hole 11 and the temperature measuring hole 12 are located on the same plane perpendicular to the axis of the probe body 1.
In one embodiment, as shown in fig. 4, the central angle between the first projection and the second projection is 180 degrees, and the first distance is greater than the second distance, i.e. the temperature measurement hole 12 is closer to the needle tip than the camera hole 11.
In one embodiment, as shown in fig. 5, the central angle between the first projection and the second projection is 180 degrees, and the first distance is smaller than the second distance, i.e. the camera hole 11 is closer to the needle tip than the temperature measurement hole 12.
In one embodiment, as shown in fig. 6, the central angle between the first projection and the second projection is less than or equal to 90 degrees, and the first distance is equal to the second distance, i.e. the camera hole 11 and the temperature measurement hole 12 are located on the same plane perpendicular to the axis of the probe body.
In one embodiment, as shown in fig. 7, the central angle between the first projection and the second projection is less than or equal to 90 degrees, and the first distance is greater than the second distance, i.e. the temperature measurement hole 12 is closer to the needle tip than the camera hole 11.
In one embodiment, as shown in fig. 8, the central angle between the first projection and the second projection is less than or equal to 90 degrees, and the first distance is less than the second distance, i.e. the camera hole 11 is closer to the needle tip than the temperature measuring hole 12.
In the research and development process of the applicant, the change of the arrangement relationship between the camera holes 11 and the temperature measuring holes 12 in the above embodiment does not affect the shooting effect of the camera mechanism, the temperature measuring effect of the thermocouple 2, and the ablation effect of the biological tissue, so that the positions of the camera holes 11 and the temperature measuring holes 12 can be flexibly set according to the actual arrangement space in the cavity.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An ablation probe, comprising:
the probe comprises a probe body, wherein a cavity is arranged in the probe body; one end of the probe body is used for extending into biological tissues to be ablated; one end of the probe body is provided with a transparent window;
the camera of the camera shooting mechanism is arranged in the cavity and faces the transparent window; the camera shooting mechanism is used for collecting image information of biological tissues outside the probe body through the transparent window;
the thermocouple is provided with a measuring end and a cold end, the measuring end is close to one end of the probe body, and the measuring end extends out of the probe body from the cavity; the measuring end is respectively connected with the cold end and a first electrical interface of the measuring instrument, the cold end is electrically connected with a second electrical interface of the measuring instrument, and the measuring end, the cold end and the measuring instrument form a closed loop.
2. The ablation probe of claim 1,
one end of the probe body is provided with a camera hole, the camera hole is communicated with the cavity, and one side of the camera hole, which is far away from the cavity, is hermetically connected with the transparent cover; the camera faces the camera hole.
3. The ablation probe of claim 2,
one end of the probe body is provided with a temperature measuring hole, the temperature measuring hole is communicated with the cavity, and the measuring end extends out of the probe body through the temperature measuring hole.
4. The ablation probe of claim 3,
the projection of the camera shooting hole on a plane perpendicular to the axis of the probe body is a first projection, the projection of the temperature measuring hole on the plane perpendicular to the axis of the probe body is a second projection, and a central angle formed by the first projection and the second projection relative to the axis of the probe body is equal to 180 degrees.
5. The ablation probe of claim 3,
the projection of the camera shooting hole on a plane vertical to the axis of the probe body is a first projection, the projection of the temperature measuring hole on the plane vertical to the axis of the probe body is a second projection, and a central angle formed by the first projection and the second projection relative to the axis of the probe body is smaller than or equal to 90 degrees.
6. The ablation probe of claim 4 or 5,
the distance between the camera shooting hole and the needle tip at one end of the probe body is a first distance, the distance between the temperature measuring hole and the needle tip is a second distance, and the first distance is equal to the second distance.
7. The ablation probe of claim 4 or 5,
the distance between the camera shooting hole and the needle tip at one end of the probe body is a first distance, the distance between the temperature measuring hole and the needle tip is a second distance, and the first distance is larger than the second distance.
8. The ablation probe of claim 4 or 5,
the distance between the camera shooting hole and the needle tip at one end of the probe body is a first distance, the distance between the temperature measuring hole and the needle tip is a second distance, and the first distance is smaller than the second distance.
9. The ablation probe of claim 1,
one end of the probe body is provided with a camera hole, the camera hole is communicated with the cavity, a transparent body is arranged in the camera hole, and the transparent body is connected with the inner side wall of the camera hole; the camera faces the camera hole.
10. The ablation probe of claim 1,
the probe body includes: a first segment, a transparent segment, and a second segment;
one end of the first section is connected with one end of the transparent section, and the other end of the transparent section is connected with one end of the second section;
the camera is directed towards the transparent segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221940380.3U CN218651995U (en) | 2022-07-26 | 2022-07-26 | Ablation probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221940380.3U CN218651995U (en) | 2022-07-26 | 2022-07-26 | Ablation probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218651995U true CN218651995U (en) | 2023-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221940380.3U Active CN218651995U (en) | 2022-07-26 | 2022-07-26 | Ablation probe |
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| Country | Link |
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| CN (1) | CN218651995U (en) |
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2022
- 2022-07-26 CN CN202221940380.3U patent/CN218651995U/en active Active
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