CN212816500U - Cryoablation device applied to cardiac surgery - Google Patents
Cryoablation device applied to cardiac surgery Download PDFInfo
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- CN212816500U CN212816500U CN202021823889.0U CN202021823889U CN212816500U CN 212816500 U CN212816500 U CN 212816500U CN 202021823889 U CN202021823889 U CN 202021823889U CN 212816500 U CN212816500 U CN 212816500U
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- Prior art keywords
- cryoablation
- cardiac surgery
- medium supply
- probe
- supply pipeline
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- 238000007675 cardiac surgery Methods 0.000 title claims abstract description 41
- 239000000523 sample Substances 0.000 claims abstract description 50
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 206010003658 Atrial Fibrillation Diseases 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002609 medium Substances 0.000 description 43
- 238000002679 ablation Methods 0.000 description 22
- 230000001681 protective effect Effects 0.000 description 9
- 210000001519 tissue Anatomy 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002107 myocardial effect Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000012595 freezing medium Substances 0.000 description 2
- 230000002757 inflammatory effect Effects 0.000 description 2
- 210000004165 myocardium Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 102000029749 Microtubule Human genes 0.000 description 1
- 108091022875 Microtubule Proteins 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000001508 eye Anatomy 0.000 description 1
- 208000018578 heart valve disease Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 210000004688 microtubule Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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Abstract
The utility model provides a be applied to cryoablation device of cardiac surgery operation, its characterized in that: comprises a cryoablation probe, a cryoablation device body, a medium supply pipeline and a connecting terminal; the cryoablation device body is of a through structure and comprises a handle part and a sheath part which are connected with each other; the medium supply pipeline penetrates through the whole cryoablation device body, the first end part of the medium supply pipeline penetrates out of the sheath part, and the second end part of the medium supply pipeline is formed into an extension section for the handle part; the tail end of the first end part is provided with a cryoablation probe; a connecting terminal is arranged at the tail end of the second end part; the cryoablation probe has a flat active surface. The equipment can be applied to a cryoablation device for cardiac surgery, further popularizes the application of atrial fibrillation cryoablation technology in the field of cardiac surgery in China, and improves the treatment effect of atrial fibrillation.
Description
Technical Field
The utility model relates to a medical instrument, in particular to a cryoablation device applied to cardiac surgery.
Background
Atrial fibrillation (atrial fibrillation) is one of the most common arrhythmia in clinic and one of the most frequently combined diseases of valvular heart diseases, and is extremely harmful. The cryoablation is a novel ablation mode for treating atrial fibrillation applied in recent years, has good curative effect and high safety factor, and is increasingly applied to the atrial fibrillation ablation operation of the cardiac surgery. However, the existing cryoablation devices applied to cardiac surgery are imported foreign devices and are expensive, most of the devices are not approved in China to be on the market, and the development of cardiac surgery atrial fibrillation in China is severely restricted. The prior domestic cryoablation device has the following problems:
1. domestic cryoablation devices are mainly used in surgery of eyes, lungs, liver and other organs. Cryoablation devices for the heart are also primarily limited to cryoballoon catheters, which are not suitable for use in cardiac surgery.
2. The existing cryoablation device has a relatively small ablation probe, low ablation efficiency and poor transmural, continuous and permanent properties of an ablation line.
3. The existing cryoablation device has a fixed ablation probe appearance, and is inconvenient to operate when tissues at different angles and different positions are ablated.
4. Most cryoablation devices cannot realize temperature measurement, safety is poor, and ablation effect is uncertain.
Disclosure of Invention
The utility model designs a domestic cryoablation device that can be applied to cardiac surgery, further promote the application of atrial fibrillation cryoablation technique in china's cardiac surgery, improve the therapeutic effect of atrial fibrillation.
The invention provides a cryoablation device applied to cardiac surgery, which is characterized in that: comprises a cryoablation probe, a cryoablation device body, a medium supply pipeline and a connecting terminal;
the cryoablation device body is of a through structure and comprises a handle part and a sheath part which are connected with each other;
the medium supply pipeline penetrates through the whole cryoablation device body, the first end part of the medium supply pipeline penetrates out of the sheath part, and the second end part of the medium supply pipeline is formed into an extension section for the handle part;
a cryoablation probe is arranged at the tail end of the first end part;
a connecting terminal is arranged at the tail end of the second end part;
the cryoablation probe has a flat active surface.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the cryoablation probe consists of an action surface and a branch pipe structure;
the branch pipe structure is provided with at least one input port and at least two output ports;
the output port is communicated with the acting surface;
the inlet is connected to a first end of the medium supply line.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the branch pipe structure further comprises at least two branch pipe channels;
the tail end of the branch pipe channel is an output port;
the first end of the medium supply pipeline is provided with at least two branch pipelines;
different branch channels pass through the input port and then enter different branch channels.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the first end of the medium supply pipeline is provided with at least two branch pipelines;
the branch pipelines are all connected with a cryoablation probe.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the angle between the action surface of the cryoablation probe and the opening plane of the sheath part can be adjusted.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the action surface of the cryoablation probe and the opening plane of the sheath part form an included angle of 0-90 degrees.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the action surface of the cryoablation probe and the opening plane of the sheath part form an included angle of 30 degrees or 60 degrees.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the cryoablation probe is internally provided with a temperature sensor.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the handle part is provided with a liquid crystal display screen;
the liquid crystal display screen is connected with the temperature sensor and displays the current temperature.
Further, the present invention provides a cryoablation apparatus for cardiac surgery, which is characterized in that: the outer surface of the second end part is nested with a sheath.
The utility model discloses an effect and effect:
the utility model discloses an equipment pioneering nature is applied to the heart surgery operation with domestic device that melts that freezes.
The utility model discloses in, provide a purpose-built cryoablation probe suitable for cardiac muscle tissue melts to it has insulating protective sheath through the stereoplasm medium supply line outside package of metal system, can prevent the effect of accidental injury surrounding tissue.
The utility model discloses in, the diameter of this cryoablation device's medium supply pipeline all is greater than other cryoablation devices, and the inside microtubule of pipeline is in large quantity, and the supply medium is efficient, and the event melts efficiently, and its transmural nature, continuity and integrality that melts the line are also better.
The utility model discloses in, through the temperature sensor that medium supply pipeline terminal (probe side) and ablation probe contact surface junction set up again, the temperature of measurable ablation probe helps improving the certainty of melting the effect, increases the operation security.
Drawings
Fig. 1 is a schematic structural diagram of a cryoablation apparatus applied to cardiac surgery according to the embodiment 1;
fig. 2 is a schematic front view of a probe of a cryoablation device for cardiac surgery according to an embodiment;
fig. 3 is a schematic side view of a probe of the cryoablation apparatus for cardiac surgery according to the present embodiment;
fig. 4 is a schematic view of a rear view of a probe of the cryoablation device for cardiac surgery according to the present embodiment;
fig. 5 is a schematic structural view of a cryoablation device applied to cardiac surgery according to a modification of the present embodiment;
fig. 6 is a front view structural diagram of a probe of a cryoablation device applied to cardiac surgery according to a modification of the present embodiment;
fig. 7 is a schematic structural diagram of a control system connection valve of the cryoablation device applied to cardiac surgery according to the modification of the embodiment;
fig. 8 is a schematic structural diagram of a valve cover of a control system connecting valve of a cryoablation device applied to cardiac surgery according to the embodiment.
Detailed Description
As shown in fig. 1, the present embodiment provides a cryoablation apparatus for cardiac surgery, comprising: a cryoablation probe 1 (a special probe suitable for myocardial ablation), an insulating protective sleeve 2, a handle 3, a medium supply pipeline 4 and a control system connecting valve 5.
The insulating protective sleeve 2 and the handle 3 are fixedly connected with each other and are of a through structure, and the diameter of a hollow pipe in the insulating protective sleeve can accommodate the medium supply pipeline 4 to pass through;
the medium supply pipeline 4 penetrates through the whole cryoablation device body, the first end part of the medium supply pipeline penetrates out of the insulating protective sleeve 2, and the second end part forms an extension section of the handle 3;
the cryoablation probe 1 is mounted at a first end position of a medium supply line 4;
as shown in fig. 2-4, the cryoablation probe 1 is composed of an ablation probe contact surface 6 and a medium supply line terminal 7;
the ablation probe contact surface 6 is made of metal, and the length and width thereof can be adjusted within the following ranges according to the use environment and occasion requirements:
length 2cm, 4cm, 6cm, width: 3mm, 5mm, 7 mm;
the medium supply pipeline terminal 7 is in a V-shaped shape, the opening end part of the medium supply pipeline terminal is jointed with the contact surface 6 of the ablation probe, and the other end part of the medium supply pipeline terminal can be in a shape extending into the insulating protective sleeve, can also be in a shape just connected with the opening of the insulating protective sleeve, and can also be in a shape dissociating from the opening position of the insulating protective sleeve;
generally speaking, the soft medium supply pipeline with the insulation protective sleeve is wrapped outside the medium supply pipeline, so that the soft medium supply pipeline can be adjusted at will and is convenient to use.
In the present embodiment, the end of the medium supply pipe 4 is a multi-branch structure having a bifurcated shape, i.e., capable of flowing out the medium therein through two or more branches;
in this embodiment, the branches are two branches, and each branch leads into a V-shaped medium supply pipeline terminal 7, so that the medium can be uniformly guided into the position of the contact surface 6 of the ablation probe from the end of the V-shaped opening in the use process.
Furthermore, in the present embodiment, the medium supply line terminal 7 is vertical, i.e. the angle between the ablation probe contact surface and the metal hard medium supply line is 90 °.
The angle between the contact surface of the ablation probe and the metal hard media supply line can be 30 degrees or 60 degrees as shown in fig. 5-6 according to the actual application requirement.
As shown in fig. 4, as an upgrade product, a temperature sensor 10 is disposed at the connection between the medium supply line terminal 7 and the ablation probe contact surface 6, so as to measure the temperature of the ablation probe, and the temperature sensor 10 may be a wifi, bluetooth, or other remote data transmission scheme, and may also transmit data through a signal line.
As shown in figure 1, the handle is a triangular prism metal handle, the hand-holding direction can be adjusted by 360 degrees according to requirements, and the handle has good stability.
As shown in fig. 7, the control system connection valve 5 has a connection valve plug 8 having a general structure and capable of being directly connected to a commercial refrigeration control system main unit during use, and as shown in fig. 8, has a medium supply micro-hole 9 penetrating the entire connection valve inside, and through which a medium can be introduced.
The working principle of the device is as follows:
in the using process, the freezing control system is connected with a freezing control system host through a control system connecting valve, freezing media enter a medium supply pipeline through a medium supply micro-pipe hole, respectively pass through micro-pipes in a soft medium supply pipeline and a hard medium supply pipeline, reach the terminal of the medium supply pipeline at the side of the cryoablation probe, are rapidly cooled to below 70 ℃, and act on myocardial tissues through the contact surface of the cryoablation probe to cause non-inflammatory tissue transmural injury with clear boundary.
The specific application method of the device is as follows:
(1) and inserting the connecting valve plug into the main machine of the refrigeration control system, and opening the main machine and the refrigeration medium storage tank.
(2) The handle is held by hand, and the cryoablation probe is attached to the surface of the myocardial tissue to be ablated.
(3) And (3) turning on the ablation switch, enabling the freezing medium to enter the medium supply pipeline through the medium supply micro-tube hole, respectively pass through the micro-tubes in the soft medium supply pipeline and the hard medium supply pipeline, reach the medium supply pipeline terminal at the side of the cryoablation probe, rapidly cool to below-70 ℃, and act on the myocardial tissue through the contact surface of the cryoablation probe to cause non-inflammatory tissue transmural injury with clear boundary.
(4) After the ablation is finished, the ablation switch is closed, the temperature of the cryoablation probe is gradually increased, the cryoablation probe is separated from the cryoablation cardiac muscle tissue, and the ablation is finished.
Claims (10)
1. A cryoablation device for use in cardiac surgery, comprising: comprises a cryoablation probe, a cryoablation device body, a medium supply pipeline and a connecting terminal;
the cryoablation device body is of a through structure and comprises a handle part and a sheath part which are connected with each other;
the medium supply pipeline penetrates through the whole cryoablation device body, the first end part of the medium supply pipeline penetrates out of the sheath part, and the second end part of the medium supply pipeline is formed into an extension section for the handle part;
the tail end of the first end part is provided with a cryoablation probe;
a connecting terminal is arranged at the tail end of the second end part;
the cryoablation probe has a flat active surface.
2. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the cryoablation probe consists of an action surface and a branch pipe structure;
the branch pipe structure is provided with at least one input port and at least two output ports;
the output port is communicated with the acting surface;
the inlet is connected to a first end of the medium supply line.
3. A cryoablation apparatus for use in cardiac surgery as defined in claim 2 wherein: the branch pipe structure further comprises at least two branch pipe channels;
the tail end of the branch pipe channel is provided with an output port;
the first end of the medium supply line has at least two branch lines;
different branch channels pass through the input port and then enter different branch channels.
4. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the first end of the medium supply line has at least two branch lines;
the branch pipelines are all connected with a cryoablation probe.
5. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the angle between the action surface of the cryoablation probe and the opening plane of the sheath part can be adjusted.
6. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the action surface of the cryoablation probe and the opening plane of the sheath part form an included angle of 0-90 degrees.
7. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the action surface of the cryoablation probe and the opening plane of the sheath part form an included angle of 30 degrees or 60 degrees.
8. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: a temperature sensor is arranged in the cryoablation probe.
9. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the handle part is provided with a liquid crystal display screen;
the liquid crystal display screen is connected with the temperature sensor and displays the current temperature.
10. A cryoablation apparatus for use in cardiac surgery as defined in claim 1 wherein: the outer surface of the second end part is nested with a sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021823889.0U CN212816500U (en) | 2020-08-27 | 2020-08-27 | Cryoablation device applied to cardiac surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021823889.0U CN212816500U (en) | 2020-08-27 | 2020-08-27 | Cryoablation device applied to cardiac surgery |
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| Publication Number | Publication Date |
|---|---|
| CN212816500U true CN212816500U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021823889.0U Expired - Fee Related CN212816500U (en) | 2020-08-27 | 2020-08-27 | Cryoablation device applied to cardiac surgery |
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| Country | Link |
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| CN (1) | CN212816500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137711A (en) * | 2020-08-27 | 2020-12-29 | 上海交通大学医学院附属新华医院 | Cryoablation device applied to cardiac surgery |
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2020
- 2020-08-27 CN CN202021823889.0U patent/CN212816500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112137711A (en) * | 2020-08-27 | 2020-12-29 | 上海交通大学医学院附属新华医院 | Cryoablation device applied to cardiac surgery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210330 |