CN106420049B - A kind of water-cooled cooling type microwave melt needle - Google Patents
A kind of water-cooled cooling type microwave melt needle Download PDFInfo
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- CN106420049B CN106420049B CN201611104832.3A CN201611104832A CN106420049B CN 106420049 B CN106420049 B CN 106420049B CN 201611104832 A CN201611104832 A CN 201611104832A CN 106420049 B CN106420049 B CN 106420049B
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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
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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
- 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
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
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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
- 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
- A61B2018/00595—Cauterization
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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
- 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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Abstract
The invention discloses a kind of water-cooled cooling type microwave melt needles, it shields and is formed with first annular cavity between needle tubing and microwave coaxial cable, the second toroidal cavity is formed between the cylindric rear end of ablation syringe needle and insulator and shielding needle tubing, sealing ring opens first annular cavity and the isolation of the second toroidal cavity, lead to recirculated cooling water in the present invention in first annular cavity for reducing the temperature around microwave coaxial cable, bimetallic temperature sensing element and logical cooling water capillary are provided in second toroidal cavity, spiral wound bimetallic temperature sensing element is rolled or is unclamped with the variation for experiencing temperature, drive rod is driven to rotate in through-holes, cover board is set to remove or cover conjunction from the opening of capillary, to make cooling water water flow in capillary increase or reduce, under the premise of not influencing ablation range, tissue is avoided to carbonize because temperature is excessively high.
Description
Technical field
The present invention relates to a kind of medical instrument, more particularly to a kind of water-cooled cooling type microwave melt needle.
Background technique
Microwave ablation has been rapidly developed as one of clinical cancer therapy main means, it being capable of or CT super in B
Under guidance Deng modern image, microwave needle Direct perforantes to tumor locus, the effect of polar molecule in tissue in microwave field
Lower high-speed motion, rubs mutually generates heat, is brought rapidly up in tumour, when temperature is raised to 60 degree or so, cancer cell proteins
Qualitative change solidification, leads to irreversible necrosis, implements hatching in situ to tumour, and have minimally invasive, accurate, efficient and toxic side effect
Small distinguishing feature.
During microwave transmission, due to the effect of high-frequency electric field, polarization is generated in insulating medium layer and is imitated with conductive
It answers, causes the loss of microwave energy, referred to as dielectric loss, microwave energy is transformed into heat by taking the form of for dielectric loss
Energy.This physical phenomenon can feel its temperature when coaxial wire of the personnel close to microwave ablation equipment connection
Degree.In the state of microwave transmission, be in indoor coaxial wire, the heat of dielectric loss can by with room air
Generate convection current, discharged, generally when heat production and heat dissipation tend to balance, the temperature of cable epidermis can reach 45-50 DEG C with
On, the height of surface temperature is related with the performance of coaxial cable, material and its production quality, big with transmission microwave power
Small, the time length is related.In addition also, it can be seen that coaxial wire and microwave power source connecting portion and coaxial wire
It is some higher with the temperature of the connecting portion of surgical instrument, this is because the voltage standing wave(VSW) at two positions is bigger, contact resistance compared with
Big reason.Similarly, the semi-rigid coaxial cable contained in microwave ablation surgical instrument into the human body, dielectric loss are intervened
Heat, and with the continuous transmission of microwave energy, and the heat accumulated, very high temperature will be formed, perhaps product
Equipped with thermal insulation layer, but inevitably, this heat can only be conducted to the normal tissue that ablating device is contacted, and there is tight
The risk of burning of weight, this brings puzzlement to operative doctor, while when exceeding voluntarily regulative mechanism of patient's physiology to temperature, must
It will cause accident surgery.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of water-cooled cooling type microwave melt needle,
It solves microwave melt needle in the prior art or does not have refrigerating function, the area of microwave action is caused to be unable to control, it may
The good tissue on diseased region periphery is also influenced or cooling effect is bad, makes microwave transmission power loss, to reduce
Ablation range.
To achieve the above object, the present invention provides the following technical scheme that a kind of water-cooled cooling type microwave melt needle, including
It melts syringe needle, shield needle tubing, insulator, sealing ring, microwave coaxial cable, high-frequency joint and mounting plate, before the ablation syringe needle
In coniform, rear end is cylindrical at end, the front end of the microwave coaxial cable sequentially pass through after sealing ring and insulator with ablation
The connection of syringe needle rear end, the cylindric rear end of the ablation syringe needle, insulator, sealing ring and microwave coaxial cable, which are located at, shields needle tubing
In, be formed with first annular cavity between shielding needle tubing and the microwave coaxial cable, the cylindric rear end of the ablation syringe needle and
The second toroidal cavity is formed between insulator and shielding needle tubing, and the sealing ring is by first annular cavity and the second toroidal cavity
Isolation is opened；The microwave coaxial cable rear end is connected after running through mounting plate with high-frequency joint, is provided on the mounting plate into water
Mouth and water outlet are filled the water by the first water inlet pipe being connected on water inlet, and cooling water enters in first annular cavity, cooling water
From the first outlet pipe outflow on water outlet, the front end of first water inlet pipe is extend near sealing ring, first water outlet
The front end and mounting plate upper water-out mouth edge of pipe connect；It is provided with capillary inlet, capillary outlet on the sealing ring and leads to
Hole is provided with bimetallic temperature sensing element in second toroidal cavity, and the bimetallic temperature sensing element helical coil is melting
On the cylindric rear end of syringe needle and insulator, the bimetallic temperature sensing element front end is fixed on ablation syringe needle rear end, and rear end is connected with
Drive rod, the drive rod extend into first annular cavity through through-hole on sealing ring, between the drive rod and through-hole edge
Waterproof film is provided with by the gap seals between drive rod and through-hole edge, the area of the waterproof film is greater than transmission
The area in gap between bar and through-hole edge；Logical cooling water capillary, the capillary are distributed in second toroidal cavity
Pipe spiral wound is coiled on the cylindric rear end of ablation syringe needle and insulator, the capillary Single port pass through capillary inlet into
Enter first annular cavity and be located at the underface of the first water inlet pipe front end, another port sequentially passes through capillary outlet, the first ring
Water outlet upper edge is fixed on after shape cavity and mounting plate upper water-out mouth, in first ring cavity cooling water along capillary and
Annular spaces enter the first outlet pipe between water outlet；One end that the drive rod is located at first annular cavity is connected with cover board,
The cover plate lid is on the capillary apertures at capillary inlet, as spiral wound bimetallic temperature sensing element experiences temperature
It increases and rolls, drive drive rod to rotate in through-holes, the cover board is removed from the opening of capillary, cold in the capillary
But water water flow increases, and unclamps as spiral wound bimetallic temperature sensing element experiences the reduction of temperature, drives drive rod logical
It is rotated backward in hole, the cover board covers capillary again, and cooling water water flow reduces in the capillary.
As a further improvement of the present invention, the casing of upper and lower opening is provided on the sealing ring, described sleeve pipe covers
Extracapillary at capillary inlet, the cover board cover ferrule openings.
As a further improvement of the present invention, described sleeve pipe is cylindrical shape, and the cover board is disc-shaped, the cover board side
It is hinged on cannula tip edge, is connected between the drive rod and cover board by rope, as temperature increases, bimetallic temperature-sensitive member
Part drives drive rod rotation, and rope is gradually wrapped on drive rod, cover board is gradually removed from from the opening of capillary；With
Temperature reduces, and the bimetallic temperature sensing element drives drive rod to rotate backward, and rope is gradually unclamped from drive rod, the cover board
Again lid closes the opening in capillary.
As a further improvement of the present invention, described sleeve pipe section is rectangular, and described sleeve pipe is provided on adjacent two sidewalls
Strip shaped opening, remaining adjacent two sidewalls inside are provided with strip card slot, and the cover board is square piece shape, cover board two sides edge
It is stuck in card slot, the drive rod is connected by connecting rod with cover board, and as temperature increases, bimetallic temperature sensing element is driven
Drive rod rotation gradually removes at cover board edge from card slot, is moved outside casing along being open, thus make capillary opening and
First ring cavity communicates；As temperature reduces, the bimetallic temperature sensing element drives drive rod to rotate backward, the cover board edge
It is open to set in-pipe, edge is gradually caught in card slot, so that the opening for covering conjunction in capillary is sealed in casing.
As a further improvement of the present invention, cooling water cavity shell, the cooling water cavity are arranged with outside the high-frequency joint
The second water inlet pipe and the second outlet pipe are provided on shell.
As a further improvement of the present invention, protecting crust, first water inlet pipe are arranged with outside the cooling water cavity shell
It is connected by triple valve with water inlet manifold with the second water inlet pipe, first outlet pipe and the second outlet pipe are by triple valve and always
Outlet pipe is connected, and the water inlet manifold and total outlet pipe are communicated through protecting crust and the external world.
It is formed with first annular cavity between the shielding needle tubing and microwave coaxial cable of microwave melt needle of the invention, melts
Be formed with the second toroidal cavity between the cylindric rear end of syringe needle and insulator and shielding needle tubing, sealing ring by first annular cavity and
The isolation of second toroidal cavity is opened, and the microwave melt needle with refrigerating function only carries out microwave coaxial cable cold in the prior art
But, in order to avoid cooling water generates absorption to microwave, syringe needle is not cooled down, insulation will be passed through between syringe needle and cooling water cavity
Washer isolation is opened, when syringe needle spot temperature is excessively high,
Microwave energy concentrates near field, generates excessive thermal energy on ablation needle periphery, enables tissue characteristics change and even carbonize, closely
Tissue characteristics, which change, generates screen effect, and another microwave energy is unable to reach far field, ablation range is caused to reduce, the in the present invention
Lead to recirculated cooling water in one toroidal cavity for reducing the temperature around microwave coaxial cable,
It is also provided with the second toroidal cavity, bimetallic temperature sensing element and logical cooling water hair are provided in the second toroidal cavity
Tubule, spiral wound bimetallic temperature sensing element are rolled or are unclamped with the variation for experiencing temperature, drive drive rod in through-hole
Middle rotation makes cover board remove or cover conjunction from the opening of capillary, so that cooling water water flow in capillary is increased or reduced,
Under the premise of not influencing ablation range, tissue is avoided to carbonize because temperature is excessively high.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural representation of syringe needle, insulator, sealing ring that present invention coiling has capillary and bimetallic temperature sensing element
Figure；
The partial structural diagram of Fig. 3 is middle sleeve of the present invention when being cylindrical shape microwave melt needle front end；
The partial structural diagram of Fig. 4 is middle sleeve section of the present invention when being rectangular microwave melt needle front end；
Fig. 5 is the structural schematic diagram of mounting plate of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with embodiment given by attached drawing.
Referring to Fig.1 shown in -5, a kind of water-cooled cooling type microwave melt needle of the present embodiment, including ablation syringe needle 1, shielding needle
Pipe 2, insulator 3, sealing ring 4, microwave coaxial cable 5, high-frequency joint 6 and mounting plate 7, ablation 1 front end of syringe needle in coniform, after
To hold cylindrical, the front end of microwave coaxial cable 5 sequentially passes through and is connect after sealing ring 4 and insulator 3 with ablation 1 rear end of syringe needle,
Melt the cylindric rear end of syringe needle 1, insulator 3, sealing ring 4 and microwave coaxial cable 5 are located in shielding needle tubing 2, shielding needle tubing 2 with
It is formed with first annular cavity 8 between microwave coaxial cable 5, melts the cylindric rear end of syringe needle 1 and insulator 3 and shielding needle tubing 2
Between be formed with the second toroidal cavity 9, sealing ring 4 opens first annular cavity 8 and the isolation of the second toroidal cavity 9；Microwave coaxial
5 rear end of cable is connected after running through mounting plate 7 with high-frequency joint 6, and water inlet 71 and water outlet 72 are provided on mounting plate 7, is passed through
The first water inlet pipe 73 water filling being connected on water inlet 71, cooling water enter in first annular cavity 8, main right
Microwave coaxial cable 5 cools down, and cooling water is flowed out from the first outlet pipe 74 on water outlet 72, the first water inlet pipe
73 front end is extend near sealing ring 4, and the front end and 7 upper water-out mouth of mounting plate, 72 edge of the first outlet pipe 74 connect, and first
Outlet pipe 74 is not passed through 7 upper water-out mouth 72 of mounting plate and enters in first annular cavity 8；Capillary is provided on sealing ring 4 to enter
Mouthfuls 41, capillary outlet 42 and through-hole 43 are provided with bimetallic temperature sensing element 10, bimetallic temperature-sensitive member in second toroidal cavity 9
For 10 helical coil of part on the ablation cylindric rear end of syringe needle 1 and insulator 3,10 front end of bimetallic temperature sensing element is fixed on ablation
1 rear end of syringe needle, when ablation 1 temperature change of syringe needle, bimetallic temperature sensing element 10 can be experienced in time, and rear end is connected with drive rod
11, drive rod 11 extend into first annular cavity 8 through through-hole 43 on sealing ring 4, and drive rod 11 and through-hole are set between 43 edge
Waterproof film is equipped with by the gap seals between 43 edge of drive rod 11 and through-hole, avoids cooling water in first annular cavity 8
Enter the second toroidal cavity 9 along gap, the area of waterproof film is greater than the face in gap between 43 edge of drive rod 11 and through-hole
Product, avoids drive rod 11 when movement in through-holes by more resistances；Logical cooling water is distributed in second toroidal cavity 9 to use
Capillary 12,12 spiral wound of capillary are coiled on the ablation cylindric rear end of syringe needle 1 and insulator 3,12 Single port of capillary
Enter first annular cavity 8 across capillary inlet 41 and be located at the underface of 73 front end of the first water inlet pipe, another port is successively
It is fixed on 72 upper edge of water outlet after 7 upper water-out mouth 72 of capillary outlet 42, first annular cavity 8 and mounting plate, first
Cooling water annular spaces between capillary 12 and water outlet 72 enter the first outlet pipe 74 in ring cavity 8；Drive rod 11
It is connected with cover board 13 in one end of first annular cavity 8, cover board 13 covers in the opening of the capillary 12 at capillary inlet 41, with
Spiral wound bimetallic temperature sensing element 10 experience the raising of temperature and roll, drive drive rod 11 rotated in through-hole 43,
Cover board 13 is removed from the opening of capillary 12, and cooling water in first annular cavity 8 is made to be easier to pour into capillary 12, capillary
Cooling water water flow increases in 12, unclamps as spiral wound bimetallic temperature sensing element 10 experiences the reduction of temperature, drives and passes
Lever 11 rotates backward in through-hole 43, and cover board 13 covers capillary 12 again, and cooling water in first annular cavity 8 is made to be more difficult to fill
Enter capillary 12, cooling water water flow reduces in capillary 12.
As a kind of improved specific embodiment, it is provided with the casing 44 of upper and lower opening on sealing ring 4,44 sets of casing exists
At capillary inlet 41 outside capillary 12, cover board 13 covers the opening of casing 44.The bore of capillary 12 is too small, is less susceptible to pass through
Cover board 13 is covered casing 44 and is open, to cover hair by cover board 13 to control the size of cooling water water flow by the way that casing 44 is arranged
The opening of tubule 12 makes cooling water in first annular cavity 8 be less susceptible to pour into capillary 12, by controlling 13 part of cover board
Or all removed from 44 opening of casing, complexity in capillary 12 is poured into control cooling water in first annular cavity 8,
To adjust the flowing velocity of cooling water in capillary 12.
As a kind of improved specific embodiment, casing 44 is cylindrical shape, and cover board 13 is disc-shaped, 13 side of cover board hinge
It connects at 44 top edge of casing, is connected between drive rod 11 and cover board 13 by rope, as temperature increases, bimetallic temperature-sensitive member
Part 10 drives drive rod 11 to rotate, and rope is gradually wrapped on drive rod 11, and the side that cover board 13 is connected with rope gradually tilts,
Cover board 13 is gradually removed from from the opening of capillary 12, cooling water in first annular cavity 8 is made to be easier to pour into capillary
12, so that cooling water flow velocity in capillary 12 be made to increase, more heats can be taken away；As temperature reduces, bimetallic temperature-sensitive member
Part 10 drives drive rod to rotate backward, and rope is gradually unclamped from drive rod 11, and cover board 13 covers again closes opening in capillary 12
At mouthful, cooling water in first annular cavity 8 is made to be more difficult to pour into capillary 12, thus reduce cooling water flow velocity in capillary 12,
The heat taken away becomes smaller, and this structure designs so that the motion track repeatability of cover board 13 is more preferable, as a result more precisely.
As a kind of improved specific embodiment, 44 section of casing be it is rectangular, casing 44 is provided on adjacent two sidewalls
Strip shaped opening 45, remaining adjacent two sidewalls inside are provided with strip card slot 46, and cover board 13 is square piece shape, 13 two sides edge of cover board
It being stuck in card slot 46, drive rod 11 is connected by connecting rod with cover board 13, as temperature increases, bimetallic temperature sensing element 10
It drives drive rod 11 to rotate, 13 edge of cover board is gradually removed from card slot 46, moved outside casing 44 along being open, to make hair
The opening of tubule 12 and the first ring cavity 8 communicate, and cooling water in first annular cavity 8 is made to be easier to pour into capillary 12, from
And increase cooling water flow velocity in capillary 12, more heats can be taken away；As temperature reduces, 10 band of bimetallic temperature sensing element
Dynamic drive rod 11 rotates backward, and cover board 13 is moved along opening into casing 44, and edge is gradually caught in card slot 46, to cover conjunction in hair
The opening of tubule 12 is sealed in casing 44, makes cooling water in first annular cavity 8 be more difficult to pour into capillary 12, to make capillary
Cooling water flow velocity reduces in pipe 12, and the heat taken away becomes smaller, and this structure design makes cover board 13 close effect to the vent cover of casing 44
Fruit is more preferable, and when melting 1 proper temperature of syringe needle, cooling water does not flow in capillary 12.
As a kind of improved specific embodiment, cooling water cavity shell 14, cooling water cavity shell are arranged with outside high-frequency joint 6
The second water inlet pipe 15 and the second outlet pipe 16 are provided on body 14.In actual use, high-frequency joint part will appear by force
When system increases conduction output power, cause electric current excessive and generate heat, causes transmission power loss, and fever will cause hand
Handle, which constantly heats up and then influences operative doctor, holds ablation needle handle, so the present invention is arranged with cooling outside high-frequency joint 6
Water cavity shell 14 cools down high-frequency joint 6, is to make cooling more timely, cooling effect using individual cooling water cavity
More preferably.
As a kind of improved specific embodiment, protecting crust 17, the first water inlet pipe are arranged with outside cooling water cavity shell 14
73 are connected by triple valve with water inlet manifold 18 with the second water inlet pipe 15, and the first outlet pipe 74 and the second outlet pipe 16 pass through threeway
Valve is connected with total outlet pipe 19, and water inlet manifold 18 and total outlet pipe 19 are communicated through protecting crust 17 and the external world.Protecting crust 17 is set
Set the more compact structure for making microwave melt needle.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of water-cooled cooling type microwave melt needle, including ablation syringe needle (1), shielding needle tubing (2), insulator (3), sealing ring
(4), microwave coaxial cable (5), high-frequency joint (6) and mounting plate (7), it is characterised in that: the ablation syringe needle (1) front end is in circle
Cone cell, rear end is cylindrical, the front end of the microwave coaxial cable (5) sequentially pass through sealing ring (4) and insulator (3) afterwards with disappear
Melt the connection of syringe needle (1) rear end, the cylindric rear end of the ablation syringe needle (1), insulator (3), sealing ring (4) and microwave coaxial cable
(5) it is located in shielding needle tubing (2), is formed with first annular cavity between the shielding needle tubing (2) and microwave coaxial cable (5)
(8), the second toroidal cavity is formed between the cylindric rear end of the ablation syringe needle (1) and insulator (3) and shielding needle tubing (2)
(9), the sealing ring (4) opens first annular cavity (8) and the second toroidal cavity (9) isolation；The microwave coaxial cable (5)
Rear end is connected with high-frequency joint (6) afterwards through mounting plate (7), is provided with water inlet (71) and water outlet on the mounting plate (7)
(72), it being filled the water by the first water inlet pipe (73) being connected on water inlet (71), cooling water enters in first annular cavity (8),
For cooling water from the first outlet pipe (74) outflow on water outlet (72), the front end of first water inlet pipe (73) extend into sealing ring
(4) near, the front end and mounting plate (7) upper water-out mouth (72) edge of first outlet pipe (74) connect；The sealing ring (4)
On be provided with capillary inlet (41), capillary outlet (42) and through-hole (43), be provided in second toroidal cavity (9) double
Metal temperature-sensing element (10), bimetallic temperature sensing element (10) helical coil is in ablation syringe needle (1) cylindric rear end and absolutely
On edge (3), bimetallic temperature sensing element (10) front end is fixed on ablation syringe needle (1) rear end, and rear end is connected with drive rod
(11), the drive rod (11) extend into first annular cavity (8), the drive rod through through-hole (43) on sealing ring (4)
(11) waterproof film is provided between through-hole (43) edge the gap between drive rod (11) and through-hole (43) edge is close
Envelope, the area of the waterproof film are greater than the area in gap between drive rod (11) and through-hole (43) edge；Second ring
Logical cooling water capillary (12) is distributed in shape cavity (9), capillary (12) spiral wound is coiled in ablation syringe needle (1)
On cylindric rear end and insulator (3), capillary (12) Single port passes through capillary inlet (41) and enters first annular sky
Chamber (8) and the underface for being located at the first water inlet pipe (73) front end, another port sequentially pass through capillary outlet (42), first annular
Water outlet (72) upper edge is fixed on after cavity (8) and mounting plate (7) upper water-out mouth (72), in first ring cavity (8)
Cooling water annular spaces between capillary (12) and water outlet (72) enter the first outlet pipe (74)；Drive rod (11) position
It is connected with cover board (13) in one end of first annular cavity (8), the cover board (13) covers the capillary at capillary inlet (41)
It manages in (12) opening, as spiral wound bimetallic temperature sensing element (10) experiences the raising of temperature and rolls, drive drive rod
(11) rotation in through-hole (43), the cover board (13) is removed from the opening of capillary (12), cold in the capillary (12)
But water water flow increases, and as spiral wound bimetallic temperature sensing element (10) experiences the reduction of temperature and unclamps, and drives drive rod
(11) it is rotated backward in through-hole (43), the cover board (13) covers capillary (12) again, cooling in the capillary (12)
Water water flow reduces.
2. a kind of water-cooled cooling type microwave melt needle according to claim 1, it is characterised in that: on the sealing ring (4)
It is provided with the casing (44) of upper and lower opening, described sleeve pipe (44) covers at capillary inlet (41) capillary (12) outside, the lid
Plate (13) covers casing (44) opening.
3. a kind of water-cooled cooling type microwave melt needle according to claim 2, it is characterised in that: described sleeve pipe (44) is circle
Tubular, the cover board (13) are disc-shaped, and cover board (13) side is hinged on casing (44) top edge, the drive rod
(11) it is connected between cover board (13) by rope, as temperature increases, bimetallic temperature sensing element (10) drives drive rod (11)
Rotation, rope are gradually wrapped on drive rod (11), cover board (13) are gradually removed from from the opening of capillary (12)；With
Temperature reduces, and the bimetallic temperature sensing element (10) drives drive rod to rotate backward, and rope is gradually unclamped from drive rod (11),
The cover board (13) covers the opening closed in capillary (12) again.
4. a kind of water-cooled cooling type microwave melt needle according to claim 2, it is characterised in that: described sleeve pipe (44) section
To be rectangular, described sleeve pipe (44) is provided with strip shaped opening (45) on adjacent two sidewalls, is provided on the inside of remaining adjacent two sidewalls
Strip card slot (46), the cover board (13) are square piece shape, and cover board (13) the two sides edge is stuck in card slot (46), described
Drive rod (11) is connected by connecting rod with cover board (13), and as temperature increases, bimetallic temperature sensing element (10) drives drive rod
(11) it rotates, cover board (13) edge is gradually removed from card slot (46), is moved outside along being open to casing (44), to make capillary
The opening and the first ring cavity (8) for managing (12) communicate；As temperature reduces, the bimetallic temperature sensing element (10) drives transmission
Bar (11) rotates backward, and the cover board (13) is moved in casing (44) along being open, and edge is gradually caught in card slot (46), to cover
The opening closed in capillary (12) is sealed in casing (44).
5. a kind of water-cooled cooling type microwave melt needle according to claim 1-4, it is characterised in that: the high frequency
Be arranged with cooling water cavity shell (14) outside connector (6), be provided on the cooling water cavity shell (14) the second water inlet pipe (15) and
Second outlet pipe (16).
6. a kind of water-cooled cooling type microwave melt needle according to claim 5, it is characterised in that: the cooling water cavity shell
(14) it is arranged with protecting crust (17) outside, first water inlet pipe (73) and the second water inlet pipe (15) pass through triple valve and water inlet manifold
(18) it is connected, first outlet pipe (74) is connected by triple valve with total outlet pipe (19) with the second outlet pipe (16), described
Water inlet manifold (18) and total outlet pipe (19) are communicated through protecting crust (17) and the external world.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611104832.3A CN106420049B (en) | 2016-12-05 | 2016-12-05 | A kind of water-cooled cooling type microwave melt needle |
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| CN201611104832.3A CN106420049B (en) | 2016-12-05 | 2016-12-05 | A kind of water-cooled cooling type microwave melt needle |
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| CN106420049B true CN106420049B (en) | 2019-08-09 |
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