CN105943159B - A kind of adjustable water filling ablating electrode needle - Google Patents
A kind of adjustable water filling ablating electrode needle Download PDFInfo
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- CN105943159B CN105943159B CN201610324284.9A CN201610324284A CN105943159B CN 105943159 B CN105943159 B CN 105943159B CN 201610324284 A CN201610324284 A CN 201610324284A CN 105943159 B CN105943159 B CN 105943159B
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- shank
- fixing seat
- water pipe
- handle
- adjusting knob
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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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- 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
-
- 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
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00107—Coatings on the energy applicator
- A61B2018/0013—Coatings on the energy applicator non-sticking
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
Abstract
A kind of adjustable water filling ablating electrode needle of the invention, belongs to Electrosurgical instrument field, belongs to minimally invasive ablative surgery instrument scope.Comprising: which shank, handle, adjusting knob, adjusting sleeve pipe, scale sliding block, shank fixing seat, water pipe fixing seat, water pipe, radio frequency line form.The shank tip is the triangular edge composition for being easy to puncture, and is provided with a pore on shank；One of annular groove is provided on the handle, annular groove edge has length adjustment graduated scale；The adjusting knob has an external screw thread, is made of on adjusting knob several seamed edges with rounded corners；The adjusting sleeve pipe and scale sliding block are bonded together by glue, are had the internal screw thread of one and adjusting knob cooperation on scale sliding block, are printed with a scale index line on scale sliding block；The shank fixing seat is connected with shank by glue；The water pipe fixing seat is connected with water pipe by glue；The radio frequency line is welded on shank.Adjustable water injection type ablation needle of the invention is easy to operate, clear scales, convenient for observing when surgical.
Description
Technical field
The present invention relates to a kind of disposable RF ablation instrument more particularly to a kind of radio frequencies for tumour and pathological tissues
The adjustable water filling ablating electrode needle of the temperature controlled radio frequency of ablation.
Background technique
With the progress of present science and technology and oncology, radio-frequency ablation procedure increasingly becomes a kind of effective side for the treatment of cancer
Formula.Radio-frequency ablation procedure generally uses local anaesthesia, positions through CT or B ultrasound scanning to lesion, electrode is needled into lesion
Behind center, by the variation of the parameters such as impedance, the temperature of monitoring lesion tissue, the output power of RF ablation is automatically adjusted, is opened
Begin to carry out RF ablation, lesion tissue is made quickly to generate the process of large-scale coagulation necrosis.Radio-frequency ablation procedure has 2 kinds at present
Mode, one kind are that internally cooled melts, i.e., lead to cooling circulating water inside shank in the course of surgery, so that shank temperature is kept for one
Under lower temperature (usually 25-35 DEG C), the adhesion of shank tip is prevented；Another kind is that water injection type melts, i.e., is melted on one side
Operation injects 0.05-0.5ml/min physiological saline toward lesion tissue by peristaltic pump on one side, and physiological saline penetrates into tissue,
The impedance for changing lesion tissue, so that RF ablation range is bigger.
Structurally, adjustable water injection type ablation needle traditional at present is adjusted, the visual field is unintelligible, and adjustable feel is poor, handle
It is relatively thick cumbersome, during CT and B ultrasound are to lesion localization, need to increase a fixator and ablation needle is fixed to guarantee to disappear
Lesion tissue can be melted perpendicular to lesions position by melting needle；Secondly traditional adjustable water injection type ablation needle water injection pipe is thinner,
Tube wall is relatively thin, and water pipe and radio frequency line separation, the pulling force that can be born is smaller, and it is more that water pipe phenomenon of rupture occurs.From performance, pass
The adjustable water injection type ablation needle of system was since needle tip position had not only cooled down needle point heating region without no-cooling-water, but also nothing
Effectively prevent from leading to tissue adhesion treatment measures because of high temperature exothermic, cause in the course of surgery needle point adhesion phenomenon it is serious, lead
Cause operation unexpected.
Summary of the invention
It is an object of the invention to be directed to the deficiency of existing adjustable water injection type ablation needle, a kind of adjusting view is designed in structure
Wild clear, handle is small and exquisite, and water pipe is not susceptible to phenomenon of rupture, can improve again in performance or solve to lead to group because of high temperature exothermic
Knit the adjustable water filling ablating electrode needle of adhesion.
Technical proposal that the invention solves the above-mentioned problems is:
A kind of adjustable water filling ablating electrode needle, comprising: shank 1, handle 4, adjusting knob 3, adjusting sleeve pipe 10, scale are sliding
Block 5, shank fixing seat 6, water pipe fixing seat 7, water pipe 80, RF cable assembly 8；The handle 4 is hollow round tubular, handle
It is provided with waist-shaped hole 401 on 4, length adjustment graduated scale 402 is printed on 401 side of waist-shaped hole, 4 inner wall of handle has an annular groove 403,
For cooperating the cylinder step 303 of adjusting knob 3 to move to limit adjusting knob 3 along decreased food direction；Adjusting knob 3 is set
It sets in 4 front end of handle, external screw thread 301 partially protrudes into 4 front end of handle, and 4 end of handle is equipped with plug 404, and plug 404 is for sealing
Fill water pipe 80 and RF cable assembly 8；There is an external screw thread 301 in described 3 one end of adjusting knob, and the other end has several with fillet
Seamed edge 302, be additionally provided with cylinder step 303 on adjusting knob 3, the annular groove 403 of cylinder step 303 and 4 inner wall of handle rotates
It is cooperatively connected；10 outer wall of adjusting sleeve pipe is equipped with scale sliding block 5, and shank 1 passes through 10 inside of adjusting sleeve pipe and is secured to, when
When adjusting knob 3 rotation of rotation, adjusting sleeve pipe 10 drives scale sliding block 5 to move along 4 length direction of handle, to realize shank 10
The adjustment of exposed length, shank fixing seat 6 and water pipe fixing seat 7 are tightly connected, between shank fixing seat 6 and water pipe fixing seat 7
Cavity is formed, which is connected to the hollow structure inside shank 1, and 80 one end of water pipe connection water pipe fixing seat 7 makes water pipe 80
It is connected to inside shank 1, shank fixing seat 6 and water pipe fixing seat 7 are arranged in handle 4.
It is printed on graduation indication line 501 on the scale sliding block 5, with 402 phase of length adjustment graduated scale being printed on handle 4
It is corresponding, the exposed length of shank 1 can be seen that by comparison between the two.
The shank 1 and shank fixing seat 6, water pipe 80 and water pipe fixing seat 7, water pipe fixing seat 7 and shank fixing seat 6 it
Between respectively by glue be bonded, to guarantee its leakproofness and bonding strength；
The RF cable assembly 8 includes compenzine: wherein one is the radio frequency line 802 being made of more thin copper wires,
Remaining the compensating wire 801 that two strands are T-type temperature sensing, wherein radio frequency line 802 is connected by welding and the conduction of shank 1, two strands of T-types
Temperature-compensating conducting wire 801 is linked together by welding riveting, passed through water pipe fixing seat 7 and shank fixing seat 6 refills and is fitted on shank 1
Inside of the inside until 1 front end of shank.
The radio frequency line 802 and water pipe 80 is integrated injection moulding, and 802 end of radio frequency line connects radio frequency host, water pipe
80 ends connect female Luer 800, and the separation distance between RF cable assembly 8 and water pipe 80, which can according to need, voluntarily to be torn
It opens.
The tip of the shank 1 is that the triangular edge 101 for being easy to puncture forms, and is provided with one or more pores on shank 1
102, the infiltration for physiological saline in the course of surgery；
1 front end of shank is with adhesion coating 9 is prevented, for preventing lesion tissue from adhering to during ablative surgery
On shank.
The shape of the handle 4 is cylindrical type, is linked together for 2 semicolumns by ultrasonic welding, is had inside handle 4
Multiple muscle detents, for limiting regulation handle 3, scale casing 10, shank fixing seat 6 along handle axial direction and moving left and right.
The water pipe 80 is internal diameter 0.5mm, the hollow tube of outer diameter 1.5mm.
102 diameter of pore is 0.3-0.4mm aperture.
Handle is provided with a symmetrical waist type annular groove, and edge silk-screen has graduation indication line.
Regulation handle front end is one with star-like knob handle, for rotating the length for adjusting the stretching shank of adjusting sleeve pipe
Degree, tail end are one with externally threaded structure, are screwed on for carrying out screw thread with scale sliding block, scale sliding block is driven to do along handle
It is axially moved.It is provided with an aperture inside regulation handle, for passing through adjusting sleeve pipe, and guarantees adjusting sleeve pipe along handle axial direction
It moves smooth.
Adjusting sleeve pipe and scale sliding block are bonded together by glue, and adjusting sleeve pipe is the medical insulating materials of high temperature resistant, can
Think Teflon material or polyimides material.
Shank fixing seat and shank are bonded together by glue, and shank fixing seat inner wall has a step, are used for and water pipe
Fixing seat positioning.It is provided with an aperture in shank fixing seat, is used to form the channel of physiological saline.
It is provided with an aperture in water pipe fixing seat, passes through water pipe fixing seat, shank fixing seat to needle for T-type temperature thermocouple
Bar front end position.Water pipe fixing seat and shank fixing seat are led between water pipe fixing seat and T-type sensor by glue adhering and sealing
Glue is crossed to be adhesively fixed sealing.Water pipe one end connect with water pipe fixing seat by glue, and the other end is is used for and peristaltic pump tube
Connected public female Luer.
Shank be divided into two parts composition, shank front end be needle point position, needle point be in triangular pyramidal, material be medical rigid not
Become rusty steel material SUS630, and to guarantee the sharpness and hardness requirement in puncture process, rear end is round tube position, and material is not medical
Stainless steel material SUS304, round tube is 0.3-0.4mm aperture being provided with a diameter close to needle point position, so as in the course of surgery
Physiological saline penetrates into lesion tissue, and needle point and round tube are linked together by laser welding and constitute shank.
Under normal conditions, shank surface requirements are smooth, impulse- free robustness miscellaneous spot, and these requirements coat posterior synechia to subsequent coating
Influential effect is very big.Shank, which is coated with one, prevents adhesion coating, and the material of coating is the material of a conductive corrosion-resistant low-friction coefficient
Matter can be chromium nitride or titanium nitride, or be conductive diamond DLC material, these Antiblock coatings are in certain journey
It prevents from leading to tissue adhesion phenomenon because of high temperature exothermic on degree, avoids operation meaning caused by needle point adhesion in the course of surgery
Outside.
It is built-in with a T-type temperature thermocouple close to needle tip in round tube, for measuring lesion tissue in the course of surgery
Temperature, so that host adjusts power output value according to temperature accordingly.T-type thermocouple by cable copper and constantan pass through welding
It is formed.
Cable is made of compenzine, and wherein one end is connected by socket with host, and the radio frequency line in the other end passes through welding
Be connected with shank, other two line be thermocouple wire, T-type thermocouple by cable copper and constantan by welding formed.
The beneficial effects of the present invention are:
Present invention adjusting gets a clear view, and shank collapsing length can freely be adjusted by adjusting knob and length can be shown,
Handle is small and exquisite, and water pipe and radio frequency line integrate and be not susceptible to phenomenon of rupture, prevents to improve or solving again on adhesion coating
Certainly because high temperature exothermic leads to tissue adhesion.
Detailed description of the invention
Fig. 1 is adjustable water injection type ablation needle overall structure diagram.
Fig. 2 is the structural schematic diagram at adjustable water injection type ablation needle forward tip position.
Fig. 3 is the structural schematic diagram of the shank expansion adjusting system of adjustable water injection type ablation needle.
Fig. 4 is the installation signal of adjustable water injection type ablation needle radio frequency wire bonding and shank fixing seat, water pipe fixing seat, water pipe
Figure.
Fig. 5 is the structural schematic diagram of adjusting knob of the invention.
Fig. 6 is the structural schematic diagram of adjusting sleeve pipe of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Such as Fig. 1 to Fig. 6, a kind of adjustable water filling ablating electrode needle, comprising: shank 1, handle 4, adjusting knob 3, adjusting set
Pipe 10, scale sliding block 5, shank fixing seat 6, water pipe fixing seat 7, water pipe 80, RF cable assembly 8；The handle 4 is hollow
Circular tube shaped is provided with waist-shaped hole 401 on handle 4, length adjustment graduated scale 402 is printed on 401 side of waist-shaped hole, 4 inner wall of handle has
One annular groove 403 is moved for cooperating the cylinder step 303 of adjusting knob 3 with limiting adjusting knob 3 along decreased food direction
It is dynamic；Adjusting knob 3 is arranged in 4 front end of handle, and external screw thread 301 partially protrudes into 4 front end of handle, and 4 end of handle is equipped with plug
404, plug 404 is for encapsulating water pipe 80 and RF cable assembly 8；There is an external screw thread 301 in described 3 one end of adjusting knob, another
End has several to have seamed edges 302 of fillet, is additionally provided with cylinder step 303 on adjusting knob 3, in cylinder step 303 and handle 4
The annular groove 403 of wall is rotatably assorted connection；10 outer wall of adjusting sleeve pipe is equipped with scale sliding block 5, and shank 1 passes through adjusting sleeve pipe 10
Inside is simultaneously secured to, and when adjusting knob 3 rotation of rotation, adjusting sleeve pipe 10 drives scale sliding block 5 to move along 4 length direction of handle
Dynamic, to realize the adjustment of the exposed length of shank 10, shank fixing seat 6 and water pipe fixing seat 7 are tightly connected, shank fixing seat 6
Cavity is formed between water pipe fixing seat 7, which is connected to the hollow structure inside shank 1, and 80 one end of water pipe connects water pipe
Fixing seat 7 to be connected to inside water pipe 80 and shank 1, and shank fixing seat 6 and water pipe fixing seat 7 are arranged in handle 4.
It is printed on graduation indication line 501 on the scale sliding block 5, with 402 phase of length adjustment graduated scale being printed on handle 4
It is corresponding, the exposed length of shank 1 can be seen that by comparison between the two.
The shank 1 and shank fixing seat 6, water pipe 80 and water pipe fixing seat 7, water pipe fixing seat 7 and shank fixing seat 6 it
Between respectively by glue be bonded, to guarantee its leakproofness and bonding strength；
The RF cable assembly 8 includes compenzine: wherein one is the radio frequency line 802 being made of more thin copper wires,
Remaining the compensating wire 801 that two strands are T-type temperature sensing, wherein radio frequency line 802 is connected by welding and the conduction of shank 1, two strands of T-types
Temperature-compensating conducting wire 801 is linked together by welding riveting, passed through water pipe fixing seat 7 and shank fixing seat 6 refills and is fitted on shank 1
Inside of the inside until 1 front end of shank.
The radio frequency line 802 and water pipe 80 is integrated injection moulding, and 802 end of radio frequency line connects radio frequency host, water pipe
80 ends connect female Luer 800, and the separation distance between RF cable assembly 8 and water pipe 80, which can according to need, voluntarily to be torn
It opens.
The tip of the shank 1 is that the triangular edge 101 for being easy to puncture forms, and is provided with one or more pores on shank 1
102, the infiltration for physiological saline in the course of surgery；
1 front end of shank is with adhesion coating 9 is prevented, for preventing lesion tissue from adhering to during ablative surgery
On shank.
The shape of the handle 4 is cylindrical type, is linked together for 2 semicolumns by ultrasonic welding, is had inside handle 4
Multiple muscle detents, for limiting regulation handle 3, scale casing 10, shank fixing seat 6 along handle axial direction and moving left and right.
The water pipe 80 is internal diameter 0.5mm, the hollow tube of outer diameter 1.5mm.
102 diameter of pore is 0.3-0.4mm aperture.
6 inner wall of shank fixing seat has a step 601, for positioning with water pipe fixing seat 7.
A logical liquid aperture is provided in the shank fixing seat 6, which is connected to 1 hollow structure inside of shank, uses
In the channel of physiology salt water.
A logical line aperture is provided in the water pipe fixing seat 7, which is used for the compensating wire of T-type temperature sensing
801 arrive 1 interior forward end of shank by water pipe fixing seat 7 and shank fixing seat 6.
Fig. 1 is the overall schematic of the adjustable water injection type ablation needle of the present invention: rotation regulation handle 3, scale sliding block 5 drive viscous
The insulating sleeve 2 to connect together moves together, to realize the adjusting of shank 1 and insulating sleeve 2 with respect to exposed length, passes through quarter
The scale sliding block ruler of the mark and handle 4 of spending sliding block 5 compares, to clearly find out that 1 metal tip of shank exposes adjusting sleeve pipe 2
Length, adjustment get a clear view it is bright and clear.
Fig. 2 is the 1 forward tip portion structure schematic diagram of shank of the adjustable water injection type ablation needle of the present invention, and needle point is in pyrometric cone
Shape, material is medical rigid stainless steel material SUS630, to guarantee sharpness and hardness requirement of the doctor in puncture process；Needle
1 rear end of bar is round tube position, and round tube is 0.3-0.4mm aperture being provided with a diameter close to needle point position, so as in surgical procedure
Middle physiological saline penetrates into lesion tissue, and needle point and round tube are linked together by laser welding and constitute shank.Close to needle
There is a T-type thermocouple 8-1 in tip position, T-type thermocouple by cable copper and constantan is formed by welding, be used in surgical procedure
In to the thermometric of lesion tissue.Shank surface is coated with the conductive coating 9 that prevents adhesion, and the material of coating can be chromium nitride or nitridation
Titanium matter or conductive diamond material, in preventing surgical procedure because high temperature cabonization prevents lesion tissue from adhering to shank
On, so that lesion tissue and normal tissue are taken out of during extracting shank, to guarantee the safety of operation.
Fig. 3 is the schematic diagram for adjusting part: 3 front end of regulation handle is one with star-like knob handle, and tail end is with outer
Helicitic texture has a stepped cylindrical between star-like knob handle and external screw thread, for the axial restraint with handle 4, prevents it
In handle axial float.Internal screw thread is had inside scale sliding block 5, is screwed on for carrying out screw thread with regulation handle 3, in scale sliding block
5 have 2 symmetrical protrusions close to regulation handle end, and silk-screen has the mark of line-styled, for adjusting scale after cooperating with handle
Identification, meanwhile, this protrusion also can resistance value scale sliding block 5 along handle carry out axial rotation.Scale sliding block 5 and adjusting sleeve pipe
2 are bonded in 5 tail end of scale sliding block by glue.A long U-shaped annular groove is provided on handle 4, annulus groove edge silk-screen has quarter
Degree, for comparing with the line-styled of scale sliding block mark, what is be apparent finds out that shank 1 exposes the length of adjusting sleeve pipe 2.Work as rotation
Turn regulation handle 3, spiral drives scale sliding block 5 and moves together with the insulating sleeve 2 of 5 gluing of scale sliding block together, thus real
The relative motion of existing insulating sleeve 2 and handle 4.
Fig. 4 is shank 1, shank fixing seat 6, water pipe fixing seat 7, the radio frequency line part 8-2 in water pipe cable, is water pipeline
The scheme of installation of water pipe sections 8-3 in cable in handle 4.By shown in figure: shank 1 and shank fixing seat are bonded with glue, needle
With on handle 4, radio frequency line part 8-2's installation of bar fixing seat 6 and shank in water pipe cable are welded together by scolding tin,
T-type thermocouple 8-1 in water pipe cable fixes 7 by water pipe and arrives inside shank fixing seat 6, reaches the needle of shank 1 always
Tip position, water pipe sections 8-3 and water pipe fixing seat in water pipe cable are bonded by glue, and blend compounds water seal dress guarantees that its is sealed
It is water-tight.
During ablative surgery, doctor first passes through in advance according to the size for the tumour tested in CT or B ultrasound observation
The rotation of regulation handle 3 adjusts the length that shank 1 exposes adjusting sleeve pipe 2, and adjustable water injection type ablation needle is then inserted into lesion group
It knits, opens host and melted, adjustable water injection type ablation needle is then directly extracted in end to be ablated, operation is completed, due to adjustable note
Ability of swimming ablation needle has applied Antiblock coating at needle point position, it is ensured that adhesion after the completion of operation ensure that the safety of operation.
The above-described embodiments are merely illustrative of preferred embodiments of the present invention, not to structure of the invention
Think and range is defined, under the premise of not departing from design concept of the present invention, ordinary engineering and technical personnel is to this hair in this field
The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, the claimed skill of the present invention
Art content is all described in the claims.
Claims (10)
1. a kind of adjustable water filling ablating electrode needle, it is characterized in that including: shank (1), handle (4), adjusting knob (3), adjusting
Casing (10), scale sliding block (5), shank fixing seat (6), water pipe fixing seat (7), water pipe (80), RF cable assembly (8)；Institute
The handle (4) stated is hollow round tubular, is provided with waist-shaped hole (401) on handle (4), is printed with length tune on waist-shaped hole (401) side
Save graduated scale (402), handle (4) inner wall has an annular groove (403), for cooperate the cylinder step (303) of adjusting knob (3) with
Limitation adjusting knob (3) is moved along decreased food direction；Adjusting knob (3) is arranged in handle (4) front end, external screw thread
(301) partially protrude into handle (4) front end, handle (4) end is equipped with plug (404), plug (404) for encapsulate water pipe (80) and
RF cable assembly (8)；Described adjusting knob (3) one end has an external screw thread (301), and the other end has several to have the rib of fillet
Side (302) is additionally provided with cylinder step (303) on adjusting knob (3), the annular groove of cylinder step (303) and handle (4) inner wall
(403) be rotatably assorted connection；Adjusting sleeve pipe (10) outer wall is equipped with scale sliding block (5), and shank (1) passes through adjusting sleeve pipe (10)
Inside is simultaneously secured to, and when adjusting knob rotation (3) rotation, adjusting sleeve pipe (10) drives scale sliding block (5) long along handle (4)
It is mobile to spend direction, to realize the adjustment of shank (10) exposed length, shank fixing seat (6) and water pipe fixing seat (7) sealing connect
It connects, forms cavity between shank fixing seat (6) and water pipe fixing seat (7), the hollow structure of the cavity and shank (1) inside connects
Logical, water pipe (80) one end connection water pipe fixing seat (7) is connected to water pipe (80) with shank (1) inside, shank fixing seat (6) and
Water pipe fixing seat (7) setting is in handle (4).
2. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: be printed on the scale sliding block (5)
Graduation indication line (501), it is corresponding with length adjustment graduated scale (402) being printed on handle (4), pass through ratio between the two
To can be seen that the exposed length of shank (1).
3. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: the shank (1) and shank are fixed
Pass through glue respectively between seat (6), water pipe (80) and water pipe fixing seat (7), water pipe fixing seat (7) and shank fixing seat (6)
Bonding, to guarantee its leakproofness and bonding strength.
4. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: RF cable assembly (8) packet
Include compenzine: wherein one is the radio frequency line (802) being made of more thin copper wires, remaining the two bursts compensation for T-type temperature sensing
Conducting wire (801), wherein radio frequency line (802) is connected by welding with shank (1) conduction, and two bursts of T-type temperature-compensating conducting wires (801) are logical
It crosses weldering riveting to link together, is refilled by water pipe fixing seat (7) and shank fixing seat (6) and be fitted on shank (1) inside until shank
(1) inside of front end.
5. adjustable water filling ablating electrode needle as claimed in claim 4, it is characterised in that: the radio frequency line (802) and water
Pipe (80) is integrated injection moulding, and radio frequency line (802) end connects radio frequency host, and water pipe (80) end connects female Luer
(800), the separation distance between RF cable assembly (8) and water pipe (80), which can according to need, voluntarily tears.
6. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: the tip of the shank (1) is easy
In being provided with one or more pores (102) on the triangular edge (101) of puncture, shank (1), for physiological saline in the course of surgery
Infiltration.
7. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: shank (1) front end is with anti-
Only adhesion coating (9), for preventing lesion tissue from adhering to shank during ablative surgery.
8. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: the shape of the handle (4) is circle
Column type is linked together for 2 semicolumns by ultrasonic welding, has multiple muscle detents inside handle (4), adjusts hand for limiting
Handle (3), scale casing (10), shank fixing seat (6) along handle axial direction and move left and right.
9. adjustable water filling ablating electrode needle as described in claim 1, it is characterised in that: the water pipe (80) is internal diameter
0.5mm, the hollow tube of outer diameter 1.5mm.
10. adjustable water filling ablating electrode needle as claimed in claim 6, it is characterised in that: the pore (102) is diameter
The aperture of 0.3-0.4mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324284.9A CN105943159B (en) | 2016-05-16 | 2016-05-16 | A kind of adjustable water filling ablating electrode needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324284.9A CN105943159B (en) | 2016-05-16 | 2016-05-16 | A kind of adjustable water filling ablating electrode needle |
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| CN105943159A CN105943159A (en) | 2016-09-21 |
| CN105943159B true CN105943159B (en) | 2019-07-23 |
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| CN107374726B (en) * | 2017-08-31 | 2023-10-20 | 绵阳立德电子股份有限公司 | Radio frequency ablation electrode needle with adjustable working length and mounting method |
| CN109464186B (en) | 2017-09-08 | 2023-12-22 | 泽丹医疗股份有限公司 | Device and method for treating lung tumors |
| CN109833091A (en) * | 2017-11-28 | 2019-06-04 | 杭州诺诚医疗器械有限公司 | Melt needle assemblies and ablation system |
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| CN105943159A (en) | 2016-09-21 |
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