CN108175498A - Cooling device of microwave ablation needle - Google Patents
Cooling device of microwave ablation needle Download PDFInfo
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- CN108175498A CN108175498A CN201810095297.2A CN201810095297A CN108175498A CN 108175498 A CN108175498 A CN 108175498A CN 201810095297 A CN201810095297 A CN 201810095297A CN 108175498 A CN108175498 A CN 108175498A
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- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 238000002679 ablation Methods 0.000 title abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000007789 sealing Methods 0.000 claims description 28
- 239000000498 cooling water Substances 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 238000003763 carbonization Methods 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 23
- 206010028980 Neoplasm Diseases 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 230000035807 sensation Effects 0.000 description 4
- 206010052428 Wound Diseases 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 231100000732 tissue residue Toxicity 0.000 description 2
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 206010061902 Pancreatic neoplasm Diseases 0.000 description 1
- 208000024770 Thyroid neoplasm Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 208000035269 cancer or benign tumor Diseases 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000003831 deregulation Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002651 drug therapy Methods 0.000 description 1
- 230000007831 electrophysiology Effects 0.000 description 1
- 238000002001 electrophysiology Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 201000010260 leiomyoma Diseases 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 208000015486 malignant pancreatic neoplasm Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008058 pain sensation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000037380 skin damage Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002626 targeted therapy Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 208000013076 thyroid tumor Diseases 0.000 description 1
- 210000004881 tumor cell Anatomy 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The invention discloses a cooling device of a microwave ablation needle, which comprises a needle head, a first needle rod, a second needle rod, a water inlet pipe and a water outlet pipe, wherein the first needle rod is sleeved in the second needle rod, the water inlet pipe and the water outlet pipe are both spirally connected in a cavity between the first needle rod and the second needle rod, a heat conduction layer is arranged in the cavity, the tail end of the water inlet pipe is communicated with the tail end of the water outlet pipe, the water outlet pipe and the water inlet pipe are communicated with an external water pipe, the needle head is connected with the second needle rod and is provided with a microwave emitter, the microwave emitter is connected with a microwave emission control module through a connecting wire, and the microwave emission control module is. The cooling effect is good, and the carbonization of the surrounding tissues of the ablation needle due to overhigh temperature is effectively avoided.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly to a kind of cooling device of microwave melt needle.
Background technology
With the rapid development of new and high technology, neoplasm targeted therapy (Minimally Interventional Therapy) has become to be developed the most in recent years
One of rapid oncotherapy means.It collects the one such as modern medicine image technology, drug therapy, biology, gene technology, represents
The latest development direction of 21 century oncotherapy.Wherein cold circulation microwave ablation needle therapeutic tumor complication occurs with side effect
The advantages of rate is very low is referred to as current most safe and efficient tumor micro-wound therapy.
Ablation needle is not needle, it is a very thin RF energy output electrode.Specific practice is：Draw in B ultrasound or CT
It leads down, ablation needle Direct perforantes to tumor locus, polar molecule in the tissue high-speed motion under the action of radiofrequency field, mutually
Friction generates heat, is brought rapidly up within the tumor, and when temperature is raised to 60 degree or so, cancer cell proteins qualitative change solidification causes
Irreversible necrosis.Influence simultaneously to its hetero-organization is very small, improves the immunity of patient's body, inhibits the expansion of tumour cell
It dissipates.Ablation needle is because with quick heating, penetration into tissue is strong, multiple spot ablation can be carried out at the same time, ablation range is big, can monitor temperature in real time
The advantages that spending, be curative for effect, and it is widely used in liver cancer, lung cancer, fibroid, osteocarcinoma, kidney, cancer of pancreas, thyroid tumors, spleen
The treatment of high grade.
Temperature control effect of the existing ablation needle in working position is undesirable, leads to ablation needle quick heating, it is not easy to control
, there is shank and syringe needle surrounding tissue carbonizes in system, and can also damage peripheral organs, in the easy Remained mass of tissue of charing, goes out
Existing reaction has slight cusalgia sense, postoperative low-heat, foreign body sensation etc. in art.
Invention content
For the above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of cooling dress of microwave melt needle
It puts, good cooling results, effectively avoids ablation needle surrounding tissue temperature excessively high and be carbonized.
A kind of cooling device of microwave melt needle, including syringe needle, the first shank, the second shank, water inlet pipe and outlet pipe, institute
It states the first shank to be sleeved in second shank, the water inlet pipe and the equal spiral of outlet pipe are connected to the first shank and the second shank
Between cavity in, heat-conducting layer is equipped in the cavity, the water inlet pipe end is connected with water outlet pipe end, the outlet pipe with
Water inlet pipe is connected with external water pipe, and the syringe needle connect with the second shank and equipped with microwave emitter, and the microwave emitter leads to
It crosses connecting line to connect with Microwave emission control module, the Microwave emission control module is connect with controller.
Further, handle is further included, first shank and the second shank are that one end is connect with handle, the other end connects
Syringe needle is connect, is equipped with cooling water tank in the handle, the water inlet pipe is connect with cooling water tank, the cooling water tank and the water outlet
Pipe is connect respectively with external water pipe, and the connecting line is equipped in first shank.
Further, the water inlet end of the water inlet pipe is equipped with the first temperature inductor, and the water outlet of the outlet pipe is equipped with
Second temperature inductor, first temperature inductor and the second temperature inductor are connect respectively with the controller, institute
Controller is stated to connect with display device.
Further, first shank, the second shank are detachably connected respectively with the handle, the connecting line connection
There are plug and interface, the socket is respectively arranged in first shank and the second shank, and the interface is set on the handle,
The water inlet pipe and the outlet pipe are connect by connector with the cold water storage cistern in the handle.
Further, the connector includes the socket, the bellmouth in handle that are respectively arranged on water inlet pipe and outlet pipe,
The socket is inserted into the bellmouth, and the socket is interference fitted with the bellmouth.
Further, the socket is equipped with heat expansion layer, and the heat expansion layer is the embedding outer wall with the socket of circular phase, institute
The air cavity that heat expansion layer is made of rubber material and is internally provided with several closings is stated, the air cavity is interior filled with gas.
Further, the end face of the socket is equipped with permanent magnet, and the bottom of the bellmouth is equipped with electromagnet, the electromagnet
It is connect with controller.
Further, the outer wall of the socket is equipped with semiconductor chilling plate, the semiconductor chilling plate cold end and socket
Outer wall contact, hot junction are contacted with heat expansion layer, and the semiconductor chilling plate is connect with controller.
Further, the shank end is equipped with condenser pipe, and the condenser pipe is embedded in the water inlet pipe and the outlet pipe
Between junction, the condenser pipe is sequentially connected Matheson and Dresser joint, circulating pump and condenser by pipeline, and the condenser pipe is built-in
There is refrigerating fluid.
Further, the Matheson and Dresser joint includes leakproof socket and leakproof bellmouth, and the leakproof socket is inserted into the leakproof
In bellmouth, the leakproof socket and leakproof bellmouth are equipped with sealing ring and T-shaped sealing cover, and the sealing ring centre position is equipped with logical
Hole, for the T-shaped sealing cover for sealing the through-hole, the sealing ring is equipped with is pressed on described lead to by the T-shaped sealing cover
Elastic element on hole.
The beneficial effects of the present invention are：
It is low by microwave ablation thermal efficiency height, the pain sensation.If tumour, beside blood vessel, blood flow can radiate quickly, i.e., " heat sink
Effect ".Microwave rises soon, and heat resistanceheat resistant is good into effect.Microwave ablation range is bigger, is suitble to that there are the China of many big tumours.No
Positive and negative anodes need to be used to generate electric current, avoid the influence to electro physiology, reduce skin damage.Water inlet pipe and the equal spiral winding of outlet pipe
On shank, the contact area of cold water and tissue is improved, the heat dissipation of tissue is effectively facilitated, prevents temperature is excessively high from causing
Tissue carbonizes, and shank is avoided to be adhered with tissue.It, can be by water inlet pipe since water inlet pipe and outlet pipe are screw types
It is fixed on the first shank with outlet pipe, improves the fixed effect of water inlet pipe and outlet pipe, the reasons such as Transport Vibration is avoided to cause
Water inlet pipe and outlet pipe loose phenomenon.Due to the presence of the second shank so that ablation needle smooth outer surface, convenient for being pierced into human body
Tissue, smooth ablation needle outer surface are not easy to adhesion organization, prevent the tissue after ablation from being sticked out, the tissue sticked out easily exists
It comes off when extracting ablation needle, causes that there are foreign body sensations after wound is not easy to heal and heal.Heat-conducting layer is equipped in the cavity,
It improves water inlet pipe and outlet pipe to exchange with extraneous, heat-conducting layer improves the cooling effect to ablation needle, avoids ablation procedure temperature
It is excessively high to cause the phenomenon that tissue charring.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the preferred embodiment of the present invention, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of cooling device part section structural representation of microwave melt needle of the embodiment of the present invention 1；
Fig. 2 is the a-quadrant enlarged drawing of Fig. 1；
Fig. 3 is a kind of cooling device principle schematic of microwave melt needle of the embodiment of the present invention 1；
Fig. 4 is a kind of cooling device part section structural representation of microwave melt needle of the embodiment of the present invention 2；
Fig. 5 is the B area schematic enlarged-scale view of Fig. 4；
Fig. 6 is 2 heat expansion layer part section structural representation of the embodiment of the present invention；
Fig. 7 is a kind of cooling device principle schematic of microwave melt needle of the embodiment of the present invention 2；
Fig. 8 is a kind of cooling device cross-sectional view of microwave melt needle of the embodiment of the present invention 3；
Fig. 9 is 3 Matheson and Dresser joint unaccessed state cross-sectional view of the embodiment of the present invention；
Figure 10 is 3 Matheson and Dresser joint on-state cross-sectional view of the embodiment of the present invention；
In figure, 1 syringe needle, 2 first shanks, 3 second shanks, 4 water inlet pipes, 5 outlet pipes, 6 heat-conducting layers, 7 handles, 8 cooling waters
Case, 9 connecting lines, 10 microwave emitters, 11 Microwave emission control modules, 12 controllers, 13 first temperature inductors, 14 second temperature
Inductor is spent, 15 display devices, 16 plugs, 17 interfaces, 18 connectors, 19 sockets, 20 bellmouths, 21 heat expansion layers, 22 air cavitys, 23 forever
Magnet, 24 electromagnets, 25 semiconductor chilling plates, 26 condenser pipes, 27 Matheson and Dresser joints, 28 leakproof sockets, 29 leakproof bellmouths, 30 sealings
Circle, 31T type sealing covers, 32 through-holes, 33 elastic elements.
Specific embodiment
In order to be best understood from the technology of the present invention content, specific embodiment is provided below, and with reference to attached drawing the present invention is done into
The explanation of one step.
Embodiment 1
Referring to Fig. 1 to 3, a kind of cooling device of microwave melt needle provided by the invention, including syringe needle 1, the first shank 2,
Second shank 3, water inlet pipe 4, outlet pipe 5 and handle 7, first shank 2 are sleeved in second shank 3, first needle
2 and second shank 3 of bar be one end connect with handle 7, other end connecting needle 1,5 equal spiral of the water inlet pipe 4 and outlet pipe
It is connected in the cavity between the first shank 2 and the second shank 3, water inlet pipe 4 and outlet pipe 5 are screw type, increase water inlet pipe
4th, outlet pipe 5 improves cooling effect, lowering temperature uniform due to extraneous heat exchange area.Due to the presence of the second shank 3 so that
Ablation needle smooth outer surface, convenient for being pierced into tissue, smooth ablation needle outer surface is not easy to adhesion organization, after preventing ablation
Tissue sticked out, the tissue sticked out easily comes off when extracting ablation needle, and wound is caused to be not easy to heal and be deposited after healing
In foreign body sensation.Heat-conducting layer 6 is equipped in the cavity, water inlet pipe 4 and outlet pipe 5 is improved and is exchanged with extraneous, the raising pair of heat-conducting layer 6
The cooling effect of ablation needle avoids ablation procedure temperature is excessively high from causing the phenomenon that tissue charring.4 end of water inlet pipe and water outlet
5 end of pipe connects, and forms a circulatory system, and cold water is entered by water inlet pipe 4 behind arrival end to be flowed out by outlet pipe 5, the hand
Cooling water tank 8 is equipped in handle 7, the water inlet pipe 4 is connect with cooling water tank 8, the cooling water tank 8 and the outlet pipe 5 with outside
Boundary's water pipe connection, cooling water tank 8 cache cold water, play the role of buffering hydraulic pressure, connecting line 9, institute are equipped in first shank 2
It states and microwave emitter 10 is equipped in syringe needle 1, the microwave emitter 10 is connected by connecting line 9 and Microwave emission control module 11
It connects, the Microwave emission control module 11 is connect with controller 12.
Further, the water inlet end of the water inlet pipe 4 be equipped with the first temperature inductor 14, the first temperature inductor 14 due to
The temperature of water inlet is detected, and by the signal transmission detected to controller 12, the water outlet of the outlet pipe 5 is equipped with second temperature
Inductor 14, second temperature inductor 14 is for detecting the temperature of water outlet, and by the signal transmission detected to controller 12, institute
State the first temperature inductor 14 and the second temperature inductor 14 connect respectively with the controller 12, controller 12 according into
The temperature of water and the temperature of water outlet calculate the heat of cold water absorption number, the controller 12 connect with display device 15,
The water flow velocity that should be controlled is included in display device 15.Further, be equipped with water pump in the cooling water tank 8, water pump to
Water inlet pipe 4 pumps, and water pump is connect with controller 12, and controller 12 adjusts the power of water pump according to cooling-down effect, accurately controls drop
Temp effect avoids the doctor in surgical procedure from needing de-regulation cooling-down effect of diverting one's attention.
Embodiment 2
Referring to Fig. 4 to 7, the present embodiment and embodiment 1 difference lies in, first shank 2, the second shank 3 respectively with
The handle 7 is detachably connected, and is convenient for changing shank, is after using removed shank, and handle 7 and reuse avoid wave
Take.The shank removed reuses after can also sterilizing, and dismantles shank in disinfection, only to shank and is connected on shank
Syringe needle 1 carry out disinfection, component is avoided causing in handle 7 to damage in disinfecting process.The connecting line 9 is connected with plug 16 and connects
Mouth 17, is seated rear connecting line 9 by shank and connects, and microwave control module can pass through connecting line 9 and microwave generator is controlled to work.It is described
Socket 19 is respectively arranged in 2 and second shank 3 of the first shank, and the interface 17 is set on the handle 7, the water inlet pipe
4 and the outlet pipe 5 connect by connector 18 with the cold water storage cistern in the handle 7.
Specifically, the connector 18 includes being respectively arranged on the socket 19 of water inlet pipe 4 and outlet pipe 5, in handle 7
Bellmouth 20, the socket 19 are inserted into the bellmouth 20, and the socket 19 is interference fitted with the bellmouth 20, and shank is inserted into hand
After handle 7, socket 19 is fitted close with bellmouth 20, and further, socket 19 and bellmouth 20 are respectively provided with certain taper, convenient for inserting
Mouth 19 is inserted into bellmouths 20, and further, 19 length of socket is 5~15cm, and the depth of the bellmouth 20 is 5~15cm,
Ensure that socket 19 can be firmly plugged in bellmouth 20, shank is avoided shaking phenomenon occur.
Specifically, the socket 19 is equipped with heat expansion layer 21, the heat expansion layer 21 is embedding with the socket 19 for circular phase
Outer wall expands after heat expansion layer 21 is heated, can be increased due to carrying out water temperature after cooling to tissue, raised water temperature is to heat expansion
Layer 21 heats, and the heat expansion layer 21 after being heated expands, and socket 19 and bellmouth 20 are completely embedded, cold water is avoided to leak, and improves shank
With the connectivity robustness of handle 7, the heat expansion layer 21 is made of rubber material and is internally provided with the air cavity 22 of several closings, described
Filled with gas in air cavity 22, the elasticity of heat expansion layer 21 is not only improved, is easily installed, be repeatedly less likely to be damaged after installation and removal.
The air cavity 22 of several closings simultaneously improves the thermal expansion factor of heat expansion layer 21, and 21 volume expansion of heat expansion layer after being heated is big, it is easier to
It will seal secured.Heat expansion layer 21 is set on socket 19 and is conveniently replaceable and installs, when the damage of heat expansion layer 21 can be by shank from handle 7
In remove, vise heat expansion layer 21 with hawkbill and can easily remove.
Specifically, the end face of the socket 19 is equipped with permanent magnet 23, the bottom of the bellmouth 20 is equipped with electromagnet 24, described
Electromagnet 24 is connect with controller 12.Controller 12 controls electromagnet 24 to be powered after socket 19 is inserted into bellmouth 20, electromagnet 24
The magnetism to attract each other with permanent magnet 23 is generated, by the suction of socket 19 tightly in bellmouth 20, prevents from coming off.It is needing to dismantle
When, controller 12 controls electromagnet 24 to generate the magnetism to attract each other with permanent magnet 23, convenient for shank is taken out.
Specifically, the outer wall of the socket 19 is equipped with semiconductor chilling plate 25, semiconductor chilling plate 25 can be by cold end
To hot junction, 25 cold end of semiconductor chilling plate contacts heat transmission with the outer wall of socket 19, hot junction is contacted with heat expansion layer 21, will
To heat expansion layer 21, the temperature that can either reduce water at socket 19 also is able to carry out heat expansion layer 21 simultaneously the heat transmission of socket 19
Heating, while reach the double effects for improving cooling-down effect and sealing effect, the semiconductor chilling plate 25 connects with controller 12
It connects.
Embodiment 3
Referring to Fig. 8 to 10, difference lies in the shank end is equipped with condensation to the present embodiment with embodiment 1, embodiment 2
Pipe 26, the condenser pipe 26 pass through pipe embedded in the junction between the water inlet pipe 4 and the outlet pipe 5, the condenser pipe 26
Road is sequentially connected Matheson and Dresser joint 27, circulating pump and condenser, and refrigerating fluid is housed in the condenser pipe 26.Condenser is by refrigerating fluid temperature
Degree reduces, and the refrigerating fluid of low temperature is recycled by acting between condenser pipe 26, condenser, pipeline for circulating pump, in the mistake of ablation
Close to the temperature highest of 1 position of syringe needle in journey, it is excessively high to be often susceptible to temperature at this position, tissue charring also usual hair
Life is at this position.Occur after misoperation it is tissue charring, for avoid charing tissue residue in vivo, after ablation lead to
It crosses condenser pipe 26 to cool down, makes syringe needle 1 and the tissue of shank distal portion down to apparent freezing point, position and syringe needle 1 and the shank of charing
Bonding is most close, is easiest to be cooled down, and is adhered closely with shank by reducing temperature charing position, when preventing from taking out shank
In human body, remaining charred tissue is not easy to be absorbed by the body the tissue residue of charing, easily generates foreign body sensation.By condenser pipe 26
Be conducive to be bonded on shank after the tissue that other is avoided not carbonize reduces temperature set on shank end.
Specifically, the Matheson and Dresser joint 27 includes leakproof socket 28 and leakproof bellmouth 29, the leakproof socket 28 is inserted into institute
It states in leakproof bellmouth 29, the leakproof socket 28 and leakproof bellmouth 29 are equipped with sealing ring 30 and T-shaped sealing cover 31, the sealing
30 centre positions are enclosed equipped with through-hole 32, for the T-shaped sealing cover 31 for sealing the through-hole 32, the sealing ring 30 is equipped with will
The T-shaped sealing cover 31 is pressed on the elastic element 33 on the through-hole 32.Socket 19 is seated rear 28 ability of leakproof socket with preventing
Leakage bellmouth 29 is connected, the T-shaped sealing cover 31 positioned at leakproof socket 28 after being seated and the T-shaped sealing cover 31 positioned at leakproof bellmouth 29
It mutually contradicts, the through-hole 32 of sealing ring 30 is opened, and refrigerating fluid being capable of circulation.When leakproof socket 28 is detached with leakproof bellmouth 29
When, T-shaped sealing cover 31 seals through-hole 32 under the action of elastic element 33, prevents refrigerating fluid from leaking.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of cooling device of microwave melt needle, which is characterized in that including syringe needle, the first shank, the second shank, water inlet pipe and
Outlet pipe, first shank are sleeved in second shank, and the water inlet pipe and the equal spiral of outlet pipe are connected to the first shank
And in the second cavity between shank, heat-conducting layer is equipped in the cavity, the water inlet pipe end is connected with being discharged pipe end, institute
It states outlet pipe and water inlet pipe is connected with external water pipe, the syringe needle connect with the second shank and equipped with microwave emitter, described micro-
Wave launcher is connect by connecting line with Microwave emission control module, and the Microwave emission control module is connect with controller.
2. a kind of cooling device of microwave melt needle according to claim 1, which is characterized in that handle is further included, it is described
First shank and the second shank be one end connect with handle, other end connecting needle, cooling water tank, institute are equipped in the handle
It states water inlet pipe to connect with cooling water tank, the cooling water tank and the outlet pipe are connect respectively with external water pipe, first needle
The connecting line is equipped in bar.
A kind of 3. cooling device of microwave melt needle according to claim 1, which is characterized in that the water inlet of the water inlet pipe
End is equipped with the first temperature inductor, and the water outlet of the outlet pipe is equipped with second temperature inductor, first temperature inductor
It is connect respectively with the controller with the second temperature inductor, the controller is connect with display device.
4. the cooling device of a kind of microwave melt needle according to claim 1, which is characterized in that first shank,
Two shanks are detachably connected respectively with the handle, and the connecting line is connected with plug and interface, and the socket is respectively arranged on institute
It states in the first shank and the second shank, the interface is set on the handle, and the water inlet pipe and the outlet pipe pass through connection
Head is connect with the cold water storage cistern in the handle.
5. the cooling device of a kind of microwave melt needle according to claim 4, which is characterized in that the connector includes dividing
Not She Yu water inlet pipe and outlet pipe socket, the bellmouth in handle, the socket is inserted into the bellmouth, the socket with
The bellmouth interference fit.
6. the cooling device of a kind of microwave melt needle according to claim 5, which is characterized in that the socket is equipped with heat
Swollen layer, the heat expansion layer are the embedding outer wall with the socket of circular phase, and the heat expansion layer is made and is internally provided with by rubber material
The air cavity of several closings, the air cavity are interior filled with gas.
7. the cooling device of a kind of microwave melt needle according to claim 5, which is characterized in that the end face of the socket is set
There is permanent magnet, the bottom of the bellmouth is equipped with electromagnet, and the electromagnet is connect with controller.
8. the cooling device of a kind of microwave melt needle according to claim 6, which is characterized in that the outer wall of the socket is set
There is semiconductor chilling plate, the semiconductor chilling plate cold end is contacted with the outer wall of socket, hot junction is contacted with heat expansion layer, described partly to lead
Body cooling piece is connect with controller.
9. the cooling device of a kind of microwave melt needle according to claim 4, which is characterized in that the shank end is equipped with
Condenser pipe, the condenser pipe embedded in junction between the water inlet pipe and the outlet pipe, the condenser pipe by pipeline according to
Secondary connecting anti-leak connector, circulating pump and condenser, the condenser pipe is interior to be equipped with refrigerating fluid.
A kind of 10. cooling device of microwave melt needle according to claim 9, which is characterized in that the Matheson and Dresser joint packet
Leakproof socket and leakproof bellmouth are included, the leakproof socket is inserted into the leakproof bellmouth, and the leakproof socket and leakproof bellmouth are equal
Equipped with sealing ring and T-shaped sealing cover, the sealing ring centre position is equipped with through-hole, and the T-shaped sealing cover is described logical for sealing
Hole, the sealing ring are equipped with the elastic element being pressed on the T-shaped sealing cover on the through-hole.
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| CN201810095297.2A CN108175498B (en) | 2018-01-31 | 2018-01-31 | Cooling device of microwave ablation needle |
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| CN108175498B CN108175498B (en) | 2024-02-02 |
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| CN109464191A (en) * | 2018-11-23 | 2019-03-15 | 山东大学 | It is a kind of to integrate the microwave melt needle repaired in art with cooling |
| CN109602490A (en) * | 2018-11-27 | 2019-04-12 | 南京维京九洲医疗器械研发中心 | A kind of microwave ablation electrode under bronchoscope |
| CN110292437A (en) * | 2019-06-18 | 2019-10-01 | 海南省妇幼保健院 | A kind of targeting ablation needle control system |
| CN110623726A (en) * | 2019-10-22 | 2019-12-31 | 南京桑迪医疗科技有限公司 | Radio frequency plasma knife electrode vaporization, heat congeals, cutting operation anti-inflammatory device |
| CN111839723B (en) * | 2020-08-19 | 2021-03-02 | 江苏普力优创科技有限公司 | Intelligent disposable microwave ablation needle and matching method thereof |
| WO2021239028A1 (en) * | 2020-05-27 | 2021-12-02 | 天津美电医疗科技有限公司 | Electric refrigeration-based ablation system employing flexible electric refrigeration probe and flexible electric refrigeration probe |
| CN115444541A (en) * | 2022-10-21 | 2022-12-09 | 复旦大学附属中山医院 | Sympathetic nerve ablation catheter and system |
| CN115590611A (en) * | 2022-12-13 | 2023-01-13 | 成都德倍佳医疗科技有限责任公司（Cn） | Water outlet electric coagulation forceps |
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| CN109464191A (en) * | 2018-11-23 | 2019-03-15 | 山东大学 | It is a kind of to integrate the microwave melt needle repaired in art with cooling |
| CN109602490A (en) * | 2018-11-27 | 2019-04-12 | 南京维京九洲医疗器械研发中心 | A kind of microwave ablation electrode under bronchoscope |
| CN110292437A (en) * | 2019-06-18 | 2019-10-01 | 海南省妇幼保健院 | A kind of targeting ablation needle control system |
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| CN115590611B (en) * | 2022-12-13 | 2023-04-07 | 成都德倍佳医疗科技有限责任公司 | Water outlet electric coagulation forceps |
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