CN111973267B - Microwave ablation needle capable of controlling injection metering - Google Patents
Microwave ablation needle capable of controlling injection metering Download PDFInfo
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- CN111973267B CN111973267B CN202011029363.XA CN202011029363A CN111973267B CN 111973267 B CN111973267 B CN 111973267B CN 202011029363 A CN202011029363 A CN 202011029363A CN 111973267 B CN111973267 B CN 111973267B
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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
- A61B2018/00571—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
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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 relates to the technical field of medical equipment and discloses a microwave ablation needle capable of controlling injection metering, which comprises a shell, wherein a water channel is formed in the shell, a microwave channel is formed in the shell, a water wheel is rotatably connected in the water channel, rotating shafts are fixedly connected to two ends of the water wheel, one end, far away from the water wheel, of each rotating shaft is fixedly connected with a turntable, a push rod is rotatably connected to the centrifugal position on the surface of the turntable, one end, far away from the turntable, of each push rod is fixedly connected with a piston, and a first air chamber is slidably connected to the outer side of the piston. The water channel is communicated with the injection equipment, the rotating wheel adjusts the resistance connected into the electromagnetic column, so that the pressure required by the movement of the pressing plate is changed, the contact time of the pressing plate and the pressure switch is changed, the pressure switch is connected with the electromagnetic valve, the inflow can be automatically controlled, the injection equipment does not need to be additionally added, and the operation time is saved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a microwave ablation needle capable of controlling injection metering.
Background
The microwave ablation needle can be used for ablating tumors, other liquid medicines can be injected into a patient through the ablation needle in the ablation process of the existing ablation needle, the injection amount cannot be freely adjusted, equipment needs to be additionally added to adjust the injection amount, the manufacturing cost of the equipment is improved, the time of an operation process is prolonged, and the space of an operation room is occupied by the additional equipment.
In order to solve the problems, the inventor provides a microwave ablation needle capable of controlling injection metering, the microwave ablation needle is communicated with injection equipment through a water channel, a rotating wheel adjusts resistance connected to an electromagnetic column, pressure required by movement of a pressing plate is changed, contact time of the pressing plate and a pressure switch is changed, and the pressure switch is connected with an electromagnetic valve, so that inflow can be automatically controlled, additional injection equipment is not needed, and operation time is saved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a microwave ablation needle capable of controlling injection metering, which has the advantages that the injection dosage can be freely adjusted, a stop mechanism can be automatically triggered, additional equipment is not required, the operation time and the equipment manufacturing cost are saved, the equipment is highly integrated, the use space of an operating room is saved, and the problems that the ablation needle can inject other liquid medicines to a patient through the ablation needle in the ablation process, but the injection dosage can not be freely adjusted, the injection dosage needs to be adjusted by additionally adding equipment, the equipment manufacturing cost is improved, the time of the operation process is increased, and the additional equipment occupies the space of the operating room are solved.
(II) technical scheme
In order to realize the purposes that the injection dosage can be freely adjusted, the stop mechanism can be automatically triggered, additional equipment is not needed, the operation time and the manufacturing cost of the equipment are saved, the equipment has a high integration effect, and the use space of an operating room is saved, the invention provides the following technical scheme: a microwave ablation needle capable of controlling injection metering comprises a shell, wherein a water channel is formed in the shell, a microwave channel is formed in the shell, a water wheel is connected in the water channel in a rotating mode, rotating shafts are fixedly connected to two ends of the water wheel, one end, far away from the water wheel, of each rotating shaft is fixedly connected with a rotating disc, a push rod is connected in a rotating mode at the centrifugal position on the surface of the rotating disc, one end, far away from the rotating disc, of each push rod is fixedly connected with a piston, a first air bin is connected to the outer side of the piston in a sliding mode, an air inlet hole is formed in the upper end of the first air bin, an air outlet hole is formed in the lower end of the first air bin, one end, far away from the first air bin, of each air outlet hole is fixedly connected with a second air bin, a pressing plate is connected to the inner portion of the second air bin in a sliding mode, a magnetic block is fixedly connected to the inner portion of the pressing plate, and a reset spring is fixedly connected to the surface of the pressing plate, the utility model discloses a microwave oven, including No. two gas storehouses, the lateral wall fixedly connected with electromagnetism post of No. two gas storehouses, the middle fixedly connected with pressure switch of No. two gas storehouse lateral walls, the surface of casing is rotated and is connected with and rotates the wheel, the internal surface fixedly connected with resistance strip that rotates the wheel, the inside fixedly connected with metal pole of casing, the tip fixedly connected with microwave head of microwave channel, the tip of water course is rotated and is connected with the syringe needle, the inside fixedly connected with solenoid valve of water course.
Preferably, the left end of the shell is fixedly connected to the equipment main body, the surface of the shell is covered with anti-slip glue, and the inside of the microwave channel is fixedly connected with a reflective heat-insulating material, so that the microwave energy is not lost.
Preferably, the surface of the water wheel is fixedly connected with a baffle plate, and the diameter of the water wheel is smaller than that of the water channel, so that the water wheel can rotate when the water flows.
Preferably, the through-hole has been seted up to the inside of piston, and the through-hole divide into about two sections, and the diameter of left side section is greater than the right section, and left side section through-hole and a gas storehouse intercommunication, the left end fixedly connected with spring of left side section through-hole, the other end fixedly connected with bobble of spring, the diameter of bobble is greater than right section through-hole for the air that a gas storehouse got into can not flow backwards away.
Preferably, the air inlet is divided into an upper section and a lower section, the diameter of the lower section is larger than that of the upper section, the bottom of the lower section is fixedly connected with a spring, the other end of the spring is fixedly connected with a small ball, the diameter of the small ball is larger than that of the upper section through hole, and the inside of the air inlet is rotatably connected with a one-way air valve, so that air in the air inlet cannot flow backwards.
Preferably, the inside of the air outlet is rotatably connected with a one-way air valve, the magnetic block and the electromagnetic column are positioned on the same horizontal plane, and one end of the magnetic block close to the electromagnetic column is a same-name magnetic pole, so that a certain thrust is formed between the magnetic block and the electromagnetic column.
Preferably, the electromagnetic column is connected with the lower end of the resistor strip through a wire, the end part of the metal rod is fixedly connected with a metal contact, the metal contact is connected to the surface of the resistor strip in a sliding mode, and the metal rod is connected with an internal circuit through a wire, so that the resistance connected into the electromagnetic column changes due to the rotation of the rotating wheel.
Preferably, the pressure switch is connected with the electromagnetic valve through an electric wire, and the pressure switch is connected with the internal circuit.
(III) advantageous effects
Compared with the prior art, the invention provides a microwave ablation needle capable of controlling injection metering, which has the following beneficial effects:
1. this microwave ablation needle that can control injection measurement is connected with microwave equipment through the casing, and the water course is linked together with injection equipment, rotates the resistance that the wheel adjustment electromagnetism post inserts, and the change of magnetic force between electromagnetism post and the magnetic path for the required pressure of clamp plate motion changes, and the time of clamp plate and pressure switch contact changes, and pressure switch is connected with the solenoid valve, thereby has reached can automatic control inflow, need not additionally to add injection equipment, has saved the effect of operation time.
2. This can control microwave ablation needle of injection measurement, rotate through water wheels, it rotates to drive the carousel, the surface rotation of carousel is connected with the push rod, the other end fixedly connected with piston of push rod, the piston slides in a gas storehouse is inside, pass into No. two gas storehouses with the inside air of inlet port through the venthole inside, No. two inside sliding connection in gas storehouse has the clamp plate, thereby reached and to have triggered the solenoid valve stop work voluntarily, need not to add extra control element of frame, the manufacturing cost is saved, high integration, practice thrift the effect in operating room space.
Drawings
FIG. 1 is a cross-sectional structural view of a rotating wheel according to the present invention;
FIG. 2 is a cross-sectional structural schematic view of the housing of the present invention;
FIG. 3 is a schematic structural view of the microwave ablation needle in front cross section;
FIG. 4 is a schematic structural view of a flow control mechanism according to the present invention;
FIG. 5 is an enlarged view of the structure at A of FIG. 4 according to the present invention;
FIG. 6 is an enlarged view of the structure at B of FIG. 4 according to the present invention.
In the figure: 1. a housing; 2. a water channel; 3. a microwave channel; 4. a water wheel; 5. a rotating shaft; 6. a turntable; 7. a push rod; 8. a piston; 9. a first gas cabin; 10. an air inlet; 11. an air outlet; 12. a second gas cabin; 13. pressing a plate; 14. a magnetic block; 15. a return spring; 16. an electromagnetic column; 17. a pressure switch; 18. a rotating wheel; 19. a resistor strip; 20. a metal rod; 21. a microwave head; 22. a needle head; 23. an electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a microwave ablation needle capable of controlling injection metering comprises a housing 1, wherein the left end of the housing 1 is fixedly connected to a main body of the device, and the surface of the housing 1 is covered with an anti-slip adhesive. Water course 2 has been seted up to the inside of casing 1, and microwave channel 3's inside fixedly connected with reflection of light thermal insulation material for microwave energy can not lose, and the inside rotation of water course 2 is connected with water wheels 4, and water wheels 4's fixed surface is connected with the baffle, and water wheels 4's diameter is less than the diameter of water course 2, makes water wheels 4 can rotate when flowing. Both ends fixedly connected with pivot 5 of water wheels 4, pivot 5 keeps away from one end fixed connection carousel 6 of water wheels 4, the centrifugation department on carousel 6 surface rotates and is connected with push rod 7, the one end fixedly connected with piston 8 of carousel 6 is kept away from to push rod 7, the through-hole has been seted up to piston 8's inside, the through-hole divide into about two sections, the diameter of left side section is greater than the right side section, left side section through-hole and air chamber 9 intercommunication No. one, the left end fixedly connected with spring of left side section through-hole, the other end fixedly connected with bobble of spring, the diameter of bobble is greater than right side section through-hole, make the air that air chamber 9 got into can not flow backwards away. No. 9 gas storehouse of outside sliding connection of piston 8, inlet port 10 has been seted up to the upper end of a gas storehouse 9, inlet port 10 divide into two sections from top to bottom, the diameter of hypomere is greater than the upper segment, the bottom fixedly connected with spring of hypomere, the other end fixedly connected with bobble of spring, the diameter of bobble is greater than the upper segment through-hole, the inside rotation of inlet port 10 is connected with one-way pneumatic valve, make the inside air of inlet port 10 can not flow backwards away, venthole 11 has been seted up to the lower extreme of a gas storehouse 9, the inside rotation of venthole 11 is connected with one-way pneumatic valve.
One end fixedly connected with No. two gas silos 12 of a gas silo 9 are kept away from to venthole 11, the inside sliding connection of No. two gas silos 12 has clamp plate 13, the inside fixedly connected with magnetic path 14 of clamp plate 13, magnetic path 14 is located same horizontal plane with electromagnetism post 16, the one end that magnetic path 14 is close with electromagnetism post 16 is the magnetic pole of the same name, make to form certain thrust between magnetic path 14 and the electromagnetism post 16, the fixed surface of clamp plate 13 is connected with reset spring 15, the lateral wall fixedly connected with electromagnetism post 16 of No. two gas silos 12, electromagnetism post 16 passes through the electric wire and is connected with 19 lower extremes of resistance strip. The middle of the side wall of the second air chamber 12 is fixedly connected with a pressure switch 17, the pressure switch 17 is connected with an electromagnetic valve 23 through an electric wire, and the pressure switch 17 is connected with an internal circuit. The surface of casing 1 rotates and is connected with and rotates wheel 18, the internal surface fixedly connected with resistance strip 19 that rotates wheel 18, the inside fixedly connected with metal pole 20 of casing 1, the tip fixedly connected with metal contact of metal pole 20, metal contact sliding connection is on the surface of resistance strip 19, metal pole 20 passes through the electric wire and is connected with internal circuit, the resistance that makes electromagnetic column 16 insert changes because of the rotation that rotates wheel 18, the tip fixedly connected with microwave head 21 of microwave channel 3, the tip of water course 2 rotates and is connected with syringe needle 22, the inside fixedly connected with solenoid valve 23 of water course 2.
The working principle is as follows: in the process of using the microwave ablation needle to perform surgery, the rotating wheel 18 is rotated, the resistor strip 19 is fixedly connected inside the rotating wheel 18, scales are engraved below the rotating wheel 18 and adjusted to be suitable for the scales, the resistor strip 19 rotates to a certain position, the surface of the resistor strip 19 is connected with the metal rod 20 in a sliding mode, the metal rod 20 is connected with an internal circuit, the lower end of the resistor strip 19 is connected with the electromagnetic column 16, so that the resistance connected with the electromagnetic column 16 changes, the electromagnetic column 16 and the magnetic block 14 are located on the same horizontal plane, the positions of the electromagnetic column 16 and the magnetic block 14 are close to each other and are like magnetic poles, the magnetic block 14 is fixedly connected inside the pressing plate 13, so that the air pressure pushed by the pressing plate 13 changes, and the effect of adjusting the liquid flow is achieved;
drive water wheels 4 and rotate when liquid flows, water wheels 4 rotates and drives carousel 6 and rotate, the surface rotation of carousel 6 is connected with push rod 7, push rod 7 can reciprocating motion, the other end fixedly connected with piston 8 of push rod 7, piston 8 slides in the inside of a gas storehouse 9, bring the air of inlet port 10 into the inside of a gas storehouse 9, and discharge the air of a gas storehouse 9 inside No. two gas storehouses 12 through venthole 11, the inside sliding connection of No. two gas storehouses 12 has clamp plate 13, clamp plate 13 overcomes magnetic force and pressure switch 17 contact, pressure switch 17 is connected with solenoid valve 23, so solenoid valve 23 can be closed, stop the flow of liquid, the effect of control injection volume has been realized.
In summary, the microwave ablation needle capable of controlling injection metering is connected with microwave equipment through the shell 1, the water channel 2 is communicated with the injection equipment, the rotating wheel 18 adjusts the resistance connected with the electromagnetic column 16, the magnetic force between the electromagnetic column 16 and the magnetic block 14 changes, so that the pressure required by the movement of the pressing plate 13 changes, the contact time of the pressing plate 13 and the pressure switch 17 changes, and the pressure switch 17 is connected with the electromagnetic valve 23, so that the effect of automatically controlling the inflow amount, needing no additional injection equipment and saving the operation time is achieved.
This can control microwave ablation needle of injection measurement, rotate through water wheels 4, it rotates to drive carousel 6, the surface rotation of carousel 6 is connected with push rod 7, the other end fixedly connected with piston 8 of push rod 7, piston 8 slides in an air chamber 9 is inside, pass through venthole 11 with the inside air of inlet port 10 and discharge into No. two air chambers 12 inside, No. two air chambers 12 inside sliding connection has clamp plate 13, thereby reached and to have triggered solenoid valve 23 stop work voluntarily, need not to add extra control element of frame, manufacturing cost has been practiced thrift, high integration, practice thrift the effect in operating room space.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A microwave ablation needle capable of controlling injection metering, comprising a housing (1), characterized in that: a water channel (2) is formed in the shell (1), a microwave channel (3) is formed in the shell (1), a water wheel (4) is connected to the inside of the water channel (2) in a rotating mode, rotating shafts (5) are fixedly connected to two ends of the water wheel (4), one end, far away from the water wheel (4), of each rotating shaft (5) is fixedly connected with a rotating disc (6), a push rod (7) is rotatably connected to the centrifugal position of the surface of each rotating disc (6), one end, far away from the rotating disc (6), of each push rod (7) is fixedly connected with a piston (8), a first air chamber (9) is slidably connected to the outer side of each piston (8), an air inlet hole (10) is formed in the upper end of the first air chamber (9), an air outlet hole (11) is formed in the lower end of the first air chamber (9), and a second air chamber (12) is fixedly connected to one end, far away from the first air chamber (9), of each air outlet hole (11), a pressing plate (13) is connected to the inside of the second gas bin (12) in a sliding manner, a magnetic block (14) is fixedly connected to the inside of the pressing plate (13), a reset spring (15) is fixedly connected to the surface of the pressing plate (13), an electromagnetic column (16) is fixedly connected to the side wall of the second gas bin (12), a pressure switch (17) is fixedly connected to the middle of the side wall of the second gas bin (12), a rotating wheel (18) is rotatably connected to the surface of the shell (1), a resistor strip (19) is fixedly connected to the inner surface of the rotating wheel (18), a metal rod (20) is fixedly connected to the inside of the shell (1), a microwave head (21) is fixedly connected to the end of the microwave channel (3), a needle head (22) is rotatably connected to the end of the water channel (2), and an electromagnetic valve (23) is fixedly connected to the inside of the water channel (2);
the electromagnetic column (16) is connected with the lower end of the resistor strip (19) through a wire, the end part of the metal rod (20) is fixedly connected with a metal contact, the metal contact is connected to the surface of the resistor strip (19) in a sliding manner, and the metal rod (20) is connected with an internal circuit through a wire;
the pressure switch (17) is connected with the electromagnetic valve (23) through an electric wire, and the pressure switch (17) is connected with an internal circuit.
2. A microwave ablation needle capable of controlled injection metering according to claim 1, wherein: the left end fixed connection of casing (1) is on the equipment main part, and the surface covering of casing (1) has the non-slip rubber, the inside fixedly connected with reflection of light thermal insulation material of microwave channel (3).
3. A microwave ablation needle capable of controlled injection metering according to claim 1, wherein: the surface of the water wheel (4) is fixedly connected with a baffle, and the diameter of the water wheel (4) is smaller than that of the water channel (2).
4. A microwave ablation needle capable of controlled injection metering according to claim 1, wherein: the piston (8) is internally provided with a through hole which is divided into a left section and a right section, the diameter of the left section is larger than that of the right section, the left section through hole is communicated with the first air bin (9), the left end of the left section through hole is fixedly connected with a spring, the other end of the spring is fixedly connected with a small ball, and the diameter of the small ball is larger than that of the right section through hole.
5. A microwave ablation needle capable of controlled injection metering according to claim 1, wherein: the air inlet hole (10) is divided into an upper section and a lower section, the diameter of the lower section is larger than that of the upper section, the bottom of the lower section is fixedly connected with a spring, the other end of the spring is fixedly connected with a small ball, the diameter of the small ball is larger than that of the through hole of the upper section, and the inside of the air inlet hole (10) is rotatably connected with a one-way air valve.
6. A microwave ablation needle capable of controlled injection metering according to claim 1, wherein: the air outlet (11) is internally and rotatably connected with a one-way air valve, the magnetic block (14) and the electromagnetic column (16) are positioned on the same horizontal plane, and one end of the magnetic block (14) close to the electromagnetic column (16) is a same-name magnetic pole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011029363.XA CN111973267B (en) | 2020-09-27 | 2020-09-27 | Microwave ablation needle capable of controlling injection metering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011029363.XA CN111973267B (en) | 2020-09-27 | 2020-09-27 | Microwave ablation needle capable of controlling injection metering |
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| CN111973267A CN111973267A (en) | 2020-11-24 |
| CN111973267B true CN111973267B (en) | 2021-09-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101678169A (en) * | 2007-03-19 | 2010-03-24 | 茵苏莱恩医药有限公司 | Drug delivery device |
| CN201631819U (en) * | 2009-04-21 | 2010-11-17 | 张文芳 | Magnetostrictive strain displacement type injector without needle head |
| US20200179027A9 (en) * | 2012-03-31 | 2020-06-11 | Microcube, Llc | Methods and devices for energy delivery and therapy |
| US9743984B1 (en) * | 2016-08-11 | 2017-08-29 | Thermedical, Inc. | Devices and methods for delivering fluid to tissue during ablation therapy |
| IL305187A (en) * | 2016-09-09 | 2023-10-01 | Biora Therapeutics Inc | Electromechanical ingestible device for delivery of a dispensable substance |
| CN208519275U (en) * | 2018-07-11 | 2019-02-19 | 厦门迈斯磁电有限公司 | A kind of delicate flow control pump solenoid valve |
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Inventor after: Zhang Haimin Inventor after: Li Hui Inventor after: Hu Lijuan Inventor before: Hu Lijuan |
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Effective date of registration: 20210903 Address after: 261500 Gaomi City Hospital of traditional Chinese medicine, 588 Fenghuang street, Gaomi City, Weifang, Shandong Applicant after: Zhang Haimin Applicant after: Li Hui Address before: Room 705, 197 Shihua Road, Huangpu District, Guangzhou, Guangdong 510500 Applicant before: Guangzhou hulijuan Technology Co.,Ltd. |
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