CN115778526A - Microwave, radio frequency and temperature measurement integrated ablation needle - Google Patents
Microwave, radio frequency and temperature measurement integrated ablation needle Download PDFInfo
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- CN115778526A CN115778526A CN202210808477.7A CN202210808477A CN115778526A CN 115778526 A CN115778526 A CN 115778526A CN 202210808477 A CN202210808477 A CN 202210808477A CN 115778526 A CN115778526 A CN 115778526A
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Abstract
The invention relates to the technical field of medical instruments, in particular to a microwave, radio frequency and temperature measurement integrated ablation needle, which comprises a handle head, wherein an insulating tube is arranged at one end of the handle head, a radio frequency needle body is connected inside the insulating tube in a sliding manner, the ablation needle body is arranged inside the radio frequency needle body, the outer surface of the ablation needle body is connected with the inner surface of the radio frequency needle body in a sliding manner, an ablation needle head body is fixedly connected to one end, far away from the handle head, of the handle head, one end of a handle bin is fixedly connected with one end, far away from the insulating tube, of the handle head in a non-contact manner through a plurality of Contraband-shaped supports, and a transmission device is arranged at one end, located at the handle head, of the radio frequency needle body is extended or contracted relative to the handle head through the transmission device.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a microwave, radio frequency and temperature measurement integrated ablation needle.
Background
The tumor thermal ablation technology which is gradually developed in recent years is to utilize the biological effect of heat generation to enable ions to rub with each other and collide with other particles to generate heat aiming at one or more specific tumor focuses in a certain organ, and when the temperature of tissues exceeds 60 ℃, cells generate irreversible necrosis to achieve the purpose of ablation.
Most ablation technologies are divided into a microwave ablation technology and a radio frequency ablation technology, the ablation range of the microwave ablation is large, tumors with the diameters of 0-5 cm can be ablated generally, the ablation time is short, the tumor inactivation is good, a good ablation effect can be achieved within a short time, and the selected ablation modes are different according to different parts of visceral organs; the local control of the tumor by the radio frequency ablation is good, the tumor with the diameter of 0 to 3cm is ablated, and the relatively safe radio frequency ablation can be carried out on the tumors near the liver capsule, the gall bladder and the great vessel.
However, the microwave and radio frequency needles are operated separately in the ablation operation, and when a dangerous organ and an irregular tumor are clinically treated, the microwave and radio frequency needles are often used alternately to perform the ablation operation, and the puncture and the positioning are required for multiple times to find the focus position, so that the complexity of the operation is increased, and the multiple punctures also cause more pain to a patient.
Therefore, in order to improve the technical problems, the invention provides the microwave, radio frequency and temperature measurement integrated ablation needle, which improves the technical problems.
Disclosure of Invention
The technical problem to be improved by the invention is as follows: microwave and radio frequency needles work separately in an ablation operation, and when dangerous visceral organs and irregular tumors are clinically treated, the microwave and radio frequency needles are often required to be used alternately for the ablation operation, and the puncture and the positioning are required to be performed for multiple times to find the focus position, so that the complexity of the operation is increased, and more pain is also caused to a patient by the puncture for multiple times.
The invention provides a microwave, radio frequency and temperature measurement integrated ablation needle, which comprises a handle head, wherein an insulating tube is arranged at one end of the handle head, a radio frequency needle body is connected inside the insulating tube in a sliding manner, an ablation needle body is arranged inside the radio frequency needle body, the outer surface of the ablation needle body is connected with the inner surface of the radio frequency needle body in a sliding manner, one end far away from the handle head is fixedly connected with an ablation needle head body through an insulating sleeve in a non-permanent manner, a microwave cable is arranged inside the ablation needle body, and one end of the microwave cable is connected with the ablation needle head body;
one end of the handle bin is fixedly connected with one end, far away from the insulating tube, of the handle head in a non-contact mode through a plurality of Contraband-shaped supports, a radio frequency connector is fixedly installed at one end, far away from the handle head, of the outer portion of the handle bin, and the radio frequency connector is connected with one end, close to the handle bin, of the radio frequency needle body through a coaxial cable;
a plurality of limiting holes are formed in one side of each of the Contraband-shaped supports, and limiting blocks are connected inside the limiting holes in a sliding mode;
the transmission device is arranged at one end of the radio frequency needle body, which is positioned at the handle head, and is used for driving the radio frequency needle body to be telescopic relative to the handle head;
the temperature measuring piece is arranged in the insulating sleeve and used for detecting the temperature of the ablation tissue of the needle head part in real time;
and the clamping device is positioned on the outer surface of the handle bin and is used for clamping and rotating the handle bin and the handle head.
Preferably, a baffle is fixedly mounted at one end, close to the handle head, inside the handle bin, and one end, close to the handle bin, of the ablation needle body is fixedly connected with the baffle.
Preferably, the surface of the handle head close to one end of the handle bin and the surface of the handle bin close to one end of the handle head are both provided with annular grooves.
Preferably, the transmission means comprises:
the circular plate is positioned between the handle head and the handle bin, and annular convex blocks are arranged on two sides of the circular plate and are respectively and rotatably connected with the annular groove in the surface at one end of the handle head and the annular groove in the surface at one end of the handle bin;
a threaded hole is formed in the circle center of the circular plate;
the circumferential surface of the circular plate is provided with a plurality of anti-skidding grooves;
the rubber pipe sleeve is internally communicated, and the surface of the rubber pipe sleeve is provided with thread teeth and is in threaded connection with the threaded hole.
Preferably, one end of the radio frequency needle body, which is positioned inside the handle head, is non-permanently fixedly connected with the inside of the rubber pipe sleeve.
Preferably, a plurality of the annular grooves are provided with sliding rings made of polytetrafluoroethylene on the inner surfaces, elastic rubber rings are arranged on the outer surfaces of the annular lugs, and the elastic rubber rings are rotatably connected with the inside of the sliding rings.
Preferably, a heat dissipation assembly is arranged inside the handle bin;
the heat dissipation assembly includes: the water tank is fixedly connected with the inner wall of the handle bin, the water inlet pipe and the water outlet pipe are fixedly arranged below the water tank, and the condensation pipe is wound on the outer surface of the microwave cable;
a control valve is arranged in the drainage pipe;
the other end of the microwave cable is positioned in the water tank and is electrically connected with the microwave connector;
the water inlet of the condensation pipe is positioned in the water inlet pipe;
the water outlet of the condensation pipe is positioned in the water tank.
Preferably, a check valve is fixedly installed inside the water outlet of the condensation pipe.
Preferably, the clamping device includes:
the inner surface of the frame is fixedly connected with the outer surface of the handle bin in a non-permanent mode, and a plurality of brackets are fixedly arranged on one side of the frame;
the other ends of the plurality of brackets are fixedly connected to the movable ball;
one end of the soft rod is arranged on the operating bed, and the other end of the soft rod is provided with a spherical limiting shell.
Preferably, the movable ball is rotatably connected inside the spherical limiting shell.
The invention has the following beneficial effects:
1. the invention provides a microwave, radio frequency and temperature measurement integrated ablation needle, which is characterized in that a radio frequency needle body is extended or contracted relative to a handle head through a transmission device, when the radio frequency needle body is extended, radio frequency ablation can be carried out on a focus, and when the radio frequency needle body is contracted, the ablation needle body can carry out microwave ablation on the focus, so that the integrated design of the ablation needle body and the radio frequency needle body is realized, the operation and the control are convenient, the raw materials can be reduced, and the cost is reduced.
2. The invention provides a microwave, radio frequency and temperature measurement integrated ablation needle, which can enable a radio frequency needle body to extend or contract in a patient body through a transmission device, further can perform microwave ablation and radio frequency ablation on a focus in the patient body under the condition of one-time puncture, reduces puncture times, reduces the risk of an operation, reduces the complexity of the operation, and reduces the pain of the patient caused by multiple punctures.
3. The invention provides a microwave, radio frequency and temperature measurement integrated ablation needle, which detects the temperature of an ablation tissue in real time through a temperature measurement piece, transmits the detected temperature to a CPU (central processing unit), and determines the ablation ending time after the CPU judges the ablation effect.
4. The invention provides a microwave, radio frequency and temperature measurement integrated ablation needle, which is characterized in that a handle bin and a handle head are clamped and fixed through a clamping device, and the angle and the position of the handle bin and the handle head are adjusted, so that an ablation needle body and a radio frequency needle body do not deviate from a focus, medical staff do not need to hold the ablation needle body by hands or carry out clamping and fixing through operation forceps, and the operation burden is reduced for doctors.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a perspective cross-sectional view of the present invention;
FIG. 4 is a cross-sectional view of a Contraband glyph stent of the present invention;
FIG. 5 is an enlarged view of the invention at A;
FIG. 6 is an enlarged view of the invention at B;
FIG. 7 is an enlarged view of the invention at C;
FIG. 8 is an enlarged view of the invention at D;
in the figure: the temperature measuring device comprises a handle head 1, an insulating tube 11, a radio frequency needle body 12, an ablation needle body 13, an insulating sleeve 14, an ablation needle body 15, a microwave cable 16, a handle bin 2, a Contraband-shaped bracket 21, a limiting hole 211, a limiting block 212, a radio frequency connector 22, a coaxial cable 23, a temperature measuring piece 3, a baffle 4, an annular groove 51, a circular plate 61, an annular bump 611, a threaded hole 62, an anti-slip groove 63, a rubber tube sleeve 64, a water tank 71, a water inlet pipe 72, a water outlet pipe 73, a condensation pipe 74, a water inlet 741, a water outlet 742, a frame 81, a bracket 82, a movable ball 83, a soft rod 84 and a spherical limiting shell 85.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be understood that the terms "mounted" and "phase" are used herein unless otherwise specifically defined or limited
The connection and the connection are to be understood in a broad sense, and for example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the drawings and the specific embodiments;
the invention provides a microwave, radio frequency and temperature measurement integrated ablation needle, which is characterized by comprising the following components in parts by weight:
the radio frequency ablation device comprises a handle head 1, wherein an insulating tube 11 is fixedly mounted at one end of the handle head 1, a radio frequency needle body 12 is connected inside the insulating tube 11 in a sliding manner, an ablation needle body 13 is placed inside the radio frequency needle body 12, the outer surface of the ablation needle body 13 is connected with the inner surface of the radio frequency needle body 12 in a sliding manner, an ablation needle body 15 is fixedly connected to one end, far away from the handle head 1, of the ablation needle body through an insulating sleeve 14 in a non-permanent manner, a microwave cable 16 is placed inside the ablation needle body 13, and one end of the microwave cable 16 is electrically connected with the ablation needle body 15;
one end of the handle bin 2 is fixedly connected with one end, far away from the insulating tube 11, of the handle head 1 in a non-contact mode through a plurality of Contraband-shaped supports 8221, one end, far away from the handle head 1, of the outer portion of the handle bin 2 is fixedly provided with a radio frequency connector 22, and the radio frequency connector 22 is connected with one end, close to the handle bin 2, of the radio frequency needle body 12 through a coaxial cable 23;
a plurality of limiting holes 211 are formed in one side of each of the Contraband-shaped supports 8221, and limiting blocks 212 are slidably connected inside the limiting holes 211;
the transmission device is arranged at one end of the radio frequency needle body 12, which is positioned at the handle head 1, and is used for transmitting the radio frequency needle body 12 to be telescopic relative to the handle head 1;
the temperature measuring piece 3 is fixedly arranged in the insulating sleeve 14 and is used for detecting the temperature of the ablation tissue of the needle head part in real time;
the clamping device is positioned on the outer surface of the handle bin 2 and is used for clamping and rotating the handle bin 2 and the handle head 1;
as shown in fig. 3, when an ablation operation needs to be performed at a dangerous part (such as a dangerous focus, i.e. a focus near a liver capsule, a gallbladder and a large blood vessel), a doctor can drive the radio frequency needle body 12 to extend outwards relative to the handle head 1 through the driving device, so that the needle point part of the radio frequency needle body 12 extends from the inside of the insulating tube 11 to the outside of the insulating tube 11;
when the radio frequency needle body 12 extends to the position that the ablation needle head body 15 is completely wrapped in the radio frequency needle body 12, a doctor inserts the limiting block 212 into the limiting groove, so that the limiting block 212 can limit the transmission device, the radio frequency needle body 12 can be fixed, and the radio frequency needle body 12 is prevented from retracting into the handle bin 2 during puncture;
after the puncture is finished, the radio frequency connector 22 is electrically connected with the existing radio frequency ablation instrument, so that the radio frequency needle body 12 can perform radio frequency ablation on the focus position, then a doctor can adjust the position of the radio frequency needle body 12 according to the size of a focus under B-ultrasonic or CT radiography, and as the ablation needle head body 15 is positioned inside the adjusted radio frequency needle body 12, the temperature measuring piece 3 fixedly arranged in the insulating sleeve 14 is also positioned inside the radio frequency needle body 12, so that the temperature measuring piece 3 detects the temperature of ablation tissues in real time at the edge position of the focus, transmits the detected temperature to a CPU (central processing unit), and then the CPU determines the end time of the radio frequency ablation after judging the ablation effect;
when the microwave function is needed to be used at a relatively safe position for an ablation operation, a doctor pulls out the limit block 212 from the limit groove, and then drives the radio frequency needle body 12 to retract inwards relative to the handle head 1 through the transmission device, so that the needle point position of the radio frequency needle body 12 retracts from the outside of the insulating tube 11 to the inside of the insulating tube 11, and further the ablation needle head body 15 is exposed outside the radio frequency needle body 12 and the insulating tube 11;
when the needle head part of the radio frequency needle body 12 is completely retracted into the insulating tube 11, a doctor inserts the limit block 212 into the limit groove, so that the limit block 212 can limit the transmission device, the radio frequency needle body 12 can be fixed, and the needle head part of the radio frequency needle body 12 is prevented from extending to the outside of the insulating tube 11 during puncture;
after puncture is finished, the microwave ablation instrument can provide a microwave energy source for the ablation needle body 13 through the microwave cable 16, the ablation needle body 13 carries out microwave ablation on the focus position, then a doctor can adjust the position of the ablation needle body 13 according to the size of the focus under B-mode ultrasonography or CT radiography, the temperature of ablation tissues is detected in real time through the temperature measuring piece 3 in the insulating sleeve 14, the detected temperature is transmitted to the CPU, and the CPU determines the microwave ablation ending time after judging the ablation effect;
when the focus is subjected to microwave ablation firstly and then radio frequency ablation, before puncture, the needle head part of the radio frequency needle body 12 is retracted into the insulating tube 11, so that the ablation needle head body 15 is exposed outside the radio frequency needle body 12 and the insulating tube 11, then the ablation needle body 13 is used for puncture, and after puncture is finished, the microwave ablation instrument can provide a microwave energy source for the ablation needle body 13 through the microwave cable 16, so that the ablation needle body 13 performs microwave ablation on the focus position; after the microwave ablation is completed, stopping providing the microwave energy source for the ablation needle body 13, so that the ablation needle stops the microwave ablation; then, the doctor enables the radio frequency needle body 12 to directly extend in the patient body through the transmission device, the ablation needle head body 15 is wrapped in the radio frequency needle body 12, and then the needle head part of the radio frequency needle body 12 can be contacted with the focus in the patient body and carries out radio frequency ablation, so that once puncture is carried out, microwave ablation and radio frequency ablation can be realized, puncture times are reduced, and the pain of the patient is relieved;
when the focus is subjected to radio frequency ablation firstly and then microwave ablation, at the moment, before puncture, the needle head part of the radio frequency needle body 12 is extended to completely wrap the ablation needle head body 15 inside the radio frequency needle body 12, then the radio frequency needle body 12 is used for puncture, after puncture is completed, the radio frequency connector 22 is electrically connected with the existing radio frequency ablation instrument, so that the radio frequency needle body 12 can perform radio frequency ablation on the focus position, and after the radio frequency ablation is completed, the radio frequency energy source is stopped being provided for the radio frequency needle body 12, so that the radio frequency ablation of the radio frequency needle body 12 is stopped; then, a doctor enables the radio frequency needle body 12 to be directly contracted in a patient through a transmission device, and after the needle head part of the radio frequency needle body 12 is contracted into the insulating tube 11, the ablation needle head body 15 is exposed outside the radio frequency needle body 12 and the insulating tube 11, so that the ablation needle head body 15 can be in contact with a focus in the patient and perform microwave ablation, and therefore once puncture is performed, radio frequency ablation and microwave ablation can be achieved, puncture times are reduced, and pain of the patient is relieved;
microwave ablation or radiofrequency ablation, typically with thermal ablation durations varying between 10-45 minutes, in order to ensure ablation
The needle body or the radio frequency needle body 12 does not deviate from a focus, and needs to be held by a medical worker or clamped and fixed by operating forceps, so that the medical worker clamps and fixes the handle bin 2 and the handle head 1 with an operating bed through the clamping device, and further ensures that the ablation needle body 13 or the radio frequency needle body 12 is fixed at the focus for ablation, when the angle and the position of the ablation needle body 13 or the radio frequency needle body 12 need to be adjusted, the medical worker can directly utilize the clamping device to adjust the angle and the position of the handle bin 2 and the handle head 1, and further can complete the adjustment of the angle and the position of the ablation needle body 13 or the radio frequency needle body 12;
compared with the existing microwave ablation needle:
firstly, the radio frequency needle body 12 is extended or contracted relative to the handle head 1 through the transmission device, when the radio frequency needle body 12 is extended, radio frequency ablation can be carried out on a focus, and when the radio frequency needle body 12 is contracted, the ablation needle body 13 can carry out microwave ablation on the focus, so that the integrated design of the ablation needle body 13 and the radio frequency needle body 12 is realized, the operation and the control are convenient, the raw materials can be reduced, and the cost is reduced;
secondly, the radio frequency needle body 12 can extend or contract in the body of a patient through the transmission device, so that microwave ablation and radio frequency ablation can be carried out on a focus in the body of the patient under the condition of one-time puncture, the puncture frequency is reduced, the risk of an operation is reduced, the complexity of the operation is reduced, and the pain of the patient caused by multiple punctures is reduced;
thirdly, the temperature of the ablation tissue is detected in real time through the temperature measuring part 3, the detected temperature is transmitted to the CPU, and then the CPU determines the ablation ending time after judging the ablation effect;
fourthly, the invention clamps and fixes the handle bin 2 and the handle head 1 and adjusts the angle and the position through the clamping device, so that the ablation needle body 13 and the radio frequency needle body 12 do not deviate from the focus, and medical personnel do not need to hold the ablation needle body by hands or clamp and fix the ablation needle body by operation forceps, thereby reducing the operation burden for doctors.
As an embodiment of the invention, a baffle 4 is fixedly installed at one end of the interior of the handle bin 2 close to the handle head 1, and one end of the ablation needle body 13 close to the handle bin 2 is fixedly connected with the baffle 4;
make ablation needle body 13 fix inside handle storehouse 2 through baffle 4, avoid when using ablation needle body 13 to puncture, ablation needle body 13 takes place the displacement or moves partially, leads to the puncture point to take place the dislocation to guarantee the normal clear of operation.
As an embodiment of the invention, the surface of the handle head 1 near one end of the handle bin 2 and the surface of the handle bin 2 near one end of the handle head 1 are both provided with an annular groove 51;
as an embodiment of the present invention, the transmission device includes: the circular plate 61 is positioned between the handle head 1 and the handle bin 2, annular convex blocks 611 are arranged on two sides of the circular plate 61, and the annular convex blocks 611 are respectively and rotatably connected with the annular groove 51 on the surface at one end of the handle head 1 and the annular groove 51 on the surface at one end of the handle bin 2;
a threaded hole 62 is formed in the center of the circular plate 61;
the circumferential surface of the circular plate 61 is provided with a plurality of anti-slip grooves 63;
the rubber sleeve 64 is arranged in a penetrating manner inside the rubber sleeve 64, and the surface of the rubber sleeve is provided with thread teeth and is in threaded connection with the threaded hole 62;
as an embodiment of the invention, one end of the radio frequency needle body 12 positioned inside the handle head 1 is non-permanently fixed with the inside of the rubber sleeve 64;
as shown in fig. 6, the circular plate 61 can rotate relative to the handle head 1 and the handle bin 2 by the rotary connection of the annular protrusions 611 at the two sides of the circular plate 61 with the annular groove 51 at one end of the handle head 1 and the annular groove 51 at one end of the handle bin 2, so when the radio frequency needle main body needs to extend outwards relative to the handle bin 2, a doctor rotates the circular plate 61 to make the threaded hole 62 rotate synchronously with the circular plate 61, the circular plate 61 is rotatably connected with the handle head 1 and the handle bin 2, the position of the circular plate 61 is fixed, and the surface of the rubber sleeve 64 is provided with thread teeth and is in threaded connection with the threaded hole 62, so when the circular plate 61 rotates, the rubber sleeve 64 moves left and right in the threaded hole 62, the rubber sleeve 64 is arranged in a penetrating manner inside the rubber sleeve 64, the end of the radio frequency needle main body 12 inside the handle head 1 is inserted inside the rubber sleeve 64, the rubber sleeve 12 inserted inside the rubber sleeve 64 is pressed by the rubber sleeve 64, and the rubber sleeve 64 moves left and right, so that the rubber sleeve 12 inside the radio frequency needle main body 12 is permanently fixed with the rubber sleeve 64;
when the radio frequency needle body 12 needs to be extended, the circular plate 61 is rotated forward, so that the rubber sleeve 64 synchronously drives the radio frequency needle body 12 to move leftward, the radio frequency needle body 12 moving leftward can gradually extend out of the insulating tube 11, and the radio frequency needle body 12 is extended, then a doctor uses the plurality of anti-slip grooves 63 formed on the circumferential surface of the circular plate 61, and inserts the plurality of limiting blocks 212 into the corresponding limiting holes 211 through the corresponding anti-slip grooves 63, so that the limiting blocks 212 can limit the rotation of the circular plate 61, the circular plate 61 is fixed, and the radio frequency needle body 12 is prevented from retracting into the insulating tube 11;
when the radio frequency needle body 12 needs to be retracted, the circular plate 61 is reversed, so that the rubber sleeve 64 synchronously drives the radio frequency needle body 12 to move rightwards, the radio frequency needle body 12 moving rightwards can be gradually retracted into the insulating tube 11 from the outside of the insulating tube 11, the retraction of the radio frequency needle body 12 is completed, then a doctor utilizes the plurality of anti-skidding grooves 63 formed in the circumferential surface of the circular plate 61, and inserts the plurality of limiting blocks 212 into the corresponding limiting holes 211 through the corresponding anti-skidding grooves 63 respectively, so that the limiting blocks 212 can limit the rotation of the circular plate 61, the fixation of the circular plate 61 is completed, and the radio frequency needle body 12 is prevented from extending out of the insulating tube 11; meanwhile, the anti-slip groove 63 is convenient for the doctor to rotate the circular plate 61;
as an embodiment of the invention, the inner surfaces of the annular grooves 51 are respectively provided with a slip ring made of polytetrafluoroethylene, the outer surfaces of the annular protrusions 611 are respectively provided with an elastic rubber ring, and the elastic rubber rings are rotatably connected with the inner part of the slip ring, so that the annular protrusions 611 can rotate in the annular grooves 51, the sealing performance of the rotary connection between the annular protrusions 611 and the annular grooves 51 is ensured while the annular protrusions are rotated, the sealing performance between the connection between the circular plate 61 and the handle head 1 and the handle bin 2 is further ensured, a sealed cavity is formed between the handle head 1 and the handle bin 2, and dust is prevented from entering the handle head 1 and the handle bin 2.
As an embodiment of the present invention, a heat dissipation assembly is disposed inside the handle bin 2;
the heat dissipation assembly includes: a water tank 71 fixedly connected with the inner wall of the handle bin 2, a water inlet pipe 72 and a water outlet pipe 73 fixedly arranged below the water tank 71, and a condensation pipe 74 wound on the outer surface of the microwave cable 16;
a control valve is arranged in the drain pipe 73;
the other end of the microwave cable 16 is positioned in the water tank 71 and is electrically connected with the microwave connector;
the water inlet 741 of the condensation duct 74 is positioned inside the water inlet pipe 72;
the drain port 742 of the condensation duct 74 is positioned inside the water tank 71;
in one embodiment of the present invention, a check valve is fixedly installed in the drain port 742 of the condenser tube 74;
when the microwave cable 16 needs to be radiated, a medical worker closes the water outlet 742 by using the control valve, then injects cooling liquid into the water inlet pipe 72, the cooling liquid entering the water inlet pipe 72 can enter the condenser pipe 74 from the water inlet 741 of the condenser pipe 74, and wraps the outer surface of the microwave cable 16 by using the condenser pipe 74, so that the cooling liquid inside the condenser pipe 74 radiates the microwave cable 16, and after the cooling liquid inside the condenser pipe 74 radiates heat, the cooling liquid is discharged from the condenser pipe 74 into the water tank 71 through the water outlet 742 of the condenser pipe 74, and the cooling liquid discharged into the water tank 71 can radiate the microwave cable 16 for the second time, and meanwhile, the coaxial cable 23 can be radiated, so that the radiating efficiency is improved;
when the cooling liquid in the water tank 71 is too much, the cooling liquid in the water tank 71 does not flow back to the condenser pipe 74 through the one-way valve fixedly installed in the drain port 742 of the condenser pipe 74, so as to ensure the normal heat dissipation of the microwave cable 16;
when it is necessary to take out the coolant inside the water tank 71, the medical staff opens the drain port 742 by controlling the valve, so that the coolant inside the water tank 71 is discharged from the inside of the water tank 71 through the drain pipe 73.
As an embodiment of the present invention, the clamping device includes:
the inner surface of the frame 81 is fixedly connected with the outer surface of the handle bin 2 in a non-permanent way, and a plurality of brackets 82 are fixedly arranged on one side of the frame 81;
the other ends of the brackets 82 are fixedly connected to the movable ball 83;
one end of the soft rod 84 is fixedly arranged on the operating bed, and the other end of the soft rod 84 is provided with a spherical limiting shell 85;
as an embodiment of the present invention, the movable ball 83 is rotatably connected inside the spherical limit shell 85;
the inner surface of the frame 81 is in non-permanent fixed connection with the outer surface of the handle bin 2, the frame 81 can be connected with the outer surface of the handle bin 2 in a magic tape mode, namely, one surface of the magic tape with fine soft fibers is fixed with the outer surface of the handle bin 2, and the other surface of the magic tape with hook and thorn hair is fixed with the inner surface of the frame 81, so that when the novel multifunctional electric toothbrush is used, the inner surface of the frame 81 can be in non-permanent fixed connection with the outer surface of the handle bin 2 through the magic tape, and similarly, other modes can also be used for connection;
the internal surface of frame 81 and the non-permanent rigid coupling of handle storehouse 2 external surface, a plurality of supports 82 are in the same place movable ball 83 and frame 81 fixed connection, movable ball 83 rotates and connects inside spherical spacing shell 85, spherical spacing shell 85 fixed mounting is in soft pole 84 one end, the soft pole 84 other end is installed on the operation table, consequently can fix the centre gripping on the operation table with handle storehouse 2, because movable ball 83 rotates and connects inside spherical spacing shell 85, so can frame 81 carry out angular rotation equivalent to the operation table, thereby can adjust the angle of ablating needle and radio frequency needle according to the angle that needs, because soft pole 84 can change by the form, so can adjust the position of ablating needle and radio frequency needle according to the position of focus.
The working principle is as follows: when a radio frequency function is needed to perform ablation operation at dangerous positions (such as dangerous focuses, i.e. focuses near the liver capsule, gallbladder and great vessel positions) the doctor can drive the radio frequency needle body 12 to extend outwards relative to the handle head 1 through the transmission device, so that the needle point position of the radio frequency needle body 12 extends from the inside of the insulating tube 11 to the outside of the insulating tube 11;
when the radio frequency needle body 12 extends to the position that the ablation needle head body 15 is completely wrapped in the radio frequency needle body 12, a doctor inserts the limiting block 212 into the limiting groove, so that the limiting block 212 can limit the transmission device, the radio frequency needle body 12 can be fixed, and the radio frequency needle body 12 is prevented from retracting into the handle bin 2 during puncture;
after the puncture is finished, the radio frequency connector 22 is electrically connected with the existing radio frequency ablation instrument, so that the radio frequency needle body 12 can perform radio frequency ablation on the focus position, then a doctor can adjust the position of the radio frequency needle body 12 according to the size of a focus under B-ultrasonic or CT radiography, and as the ablation needle head body 15 is positioned inside the adjusted radio frequency needle body 12, the temperature measuring piece 3 fixedly arranged in the insulating sleeve 14 is also positioned inside the radio frequency needle body 12, so that the temperature measuring piece 3 detects the temperature of ablation tissues in real time at the edge position of the focus, transmits the detected temperature to a CPU (central processing unit), and then the CPU determines the end time of the radio frequency ablation after judging the ablation effect;
when the microwave function is needed to be used at a relatively safe position for an ablation operation, a doctor pulls out the limit block 212 from the limit groove, and then drives the radio frequency needle body 12 to retract inwards relative to the handle head 1 through the transmission device, so that the needle point position of the radio frequency needle body 12 retracts from the outside of the insulating tube 11 to the inside of the insulating tube 11, and further the ablation needle head body 15 is exposed outside the radio frequency needle body 12 and the insulating tube 11;
when the needle head part of the radio frequency needle body 12 is completely retracted into the insulating tube 11, a doctor inserts the limit block 212 into the limit groove, so that the limit block 212 can limit the transmission device, the radio frequency needle body 12 can be fixed, and the needle head part of the radio frequency needle body 12 is prevented from extending to the outside of the insulating tube 11 during puncture;
after puncture is finished, the microwave ablation instrument can provide a microwave energy source for the ablation needle body 13 through the microwave cable 16, the ablation needle body 13 carries out microwave ablation on the focus position, then a doctor can adjust the position of the ablation needle body 13 according to the size of the focus under B-mode ultrasonography or CT radiography, the temperature of ablation tissues is detected in real time through the temperature measuring piece 3 in the insulating sleeve 14, the detected temperature is transmitted to the CPU, and the CPU determines the microwave ablation ending time after judging the ablation effect;
when the focus is subjected to microwave ablation firstly and then radio frequency ablation, before puncture, the needle head part of the radio frequency needle body 12 is retracted into the insulating tube 11, so that the ablation needle head body 15 is exposed outside the radio frequency needle body 12 and the insulating tube 11, then the ablation needle body 13 is used for puncture, and after puncture is finished, the microwave ablation instrument can provide a microwave energy source for the ablation needle body 13 through the microwave cable 16, so that the ablation needle body 13 performs microwave ablation on the focus position; after the microwave ablation is completed, stopping providing the microwave energy source for the ablation needle body 13, so that the ablation needle stops the microwave ablation; then, the doctor enables the radio frequency needle body 12 to directly extend in the patient body through the transmission device, the ablation needle head body 15 is wrapped in the radio frequency needle body 12, and then the needle head part of the radio frequency needle body 12 can be contacted with the focus in the patient body and carries out radio frequency ablation, so that once puncture is carried out, microwave ablation and radio frequency ablation can be realized, puncture times are reduced, and the pain of the patient is relieved;
when the focus is subjected to radio frequency ablation firstly and then microwave ablation, at the moment, before puncture, the needle head part of the radio frequency needle body 12 is extended to completely wrap the ablation needle head body 15 inside the radio frequency needle body 12, then the radio frequency needle body 12 is used for puncture, after puncture is completed, the radio frequency connector 22 is electrically connected with the existing radio frequency ablation instrument, so that the radio frequency needle body 12 can perform radio frequency ablation on the focus position, and after the radio frequency ablation is completed, the radio frequency energy source is stopped being provided for the radio frequency needle body 12, so that the radio frequency ablation of the radio frequency needle body 12 is stopped; then, the doctor directly contracts the radio frequency needle body 12 in the patient through the transmission device, after the needle head part of the radio frequency needle body 12 is contracted into the insulating tube 11, the ablation needle head body 15 is exposed outside the radio frequency needle body 12 and the insulating tube 11, and then the ablation needle head body 15 can be contacted with the focus in the patient and carries out microwave ablation, so that once puncture is carried out, radio frequency ablation and microwave ablation can be realized, puncture times are reduced, and pain of the patient is relieved;
microwave ablation or radiofrequency ablation, typically with thermal ablation durations varying between 10-45 minutes, in order to ensure ablation
Needle body or radio frequency needle body 12 do not deviate the focus, it is fixed to need medical personnel to hand or carry out the centre gripping by the operating forceps, therefore, medical personnel pass through clamping device with handle storehouse 2 and handle head 1 fixed with the operation table centre gripping, and then guarantee to melt needle body 13 or radio frequency needle body 12 and melt in the focus is fixed, when the angle and the position of needle body 13 or radio frequency needle body 12 are ablated in needs adjustment, medical personnel can directly utilize clamping device to carry out the adjustment of angle and position to handle storehouse 2 and handle head 1, and then can accomplish the angle and the position adjustment who melts needle body 13 or radio frequency needle body 12.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A microwave, radio frequency and temperature measurement integrated ablation needle is characterized by comprising:
the radio frequency ablation device comprises a handle head (1), wherein an insulating tube (11) is installed at one end of the handle head (1), a radio frequency needle body (12) is connected to the inside of the insulating tube (11) in a sliding mode, an ablation needle body (13) is placed inside the radio frequency needle body (12), the outer surface of the ablation needle body (13) is connected to the inner surface of the radio frequency needle body (12) in a sliding mode, an ablation needle head body (15) is fixedly connected to one end, far away from the handle head (1), of the ablation needle head body in a non-permanent mode through an insulating sleeve (14), a microwave cable (16) is placed inside the ablation needle body (13), and one end of the microwave cable (16) is connected with the ablation needle head body (15);
the radio frequency connector is fixedly connected with one end, far away from the insulating tube (11), of the handle head (1) at one end of the handle bin (2) through a plurality of Contraband-shaped supports (82) (21), the radio frequency connector (22) is fixedly installed at one end, far away from the handle head (1), of the outer portion of the handle bin (2), and the radio frequency connector (22) is connected with one end, close to the handle bin (2), of the radio frequency needle body (12) through a coaxial cable (23);
a plurality of limiting holes (211) are formed in one side of each of the Contraband-shaped supports (82) (21), and limiting blocks (212) are connected inside the limiting holes (211) in a sliding mode;
the transmission device is arranged at one end, located on the handle head (1), of the radio frequency needle body (12) and used for transmitting the radio frequency needle body (12) to be capable of extending and contracting relative to the handle head (1);
the temperature measuring piece (3) is arranged in the insulating sleeve (14) and is used for detecting the temperature of the ablation tissue of the needle head part in real time;
the clamping device is positioned on the outer surface of the handle bin (2) and used for clamping and rotating the handle bin (2) and the handle head (1).
2. The microwave, radio frequency and thermometry integrated ablation needle as claimed in claim 1, wherein: the handle is characterized in that a baffle (4) is fixedly arranged at one end, close to the handle head (1), of the interior of the handle bin (2), and one end, close to the handle bin (2), of the ablation needle body (13) is fixedly connected with the baffle (4).
3. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 1, characterized in that: annular grooves (51) are formed in the surface, close to one end of the handle bin (2), of the handle head (1) and the surface, close to one end of the handle bin (1), of the handle bin (2).
4. The microwave, radio frequency and thermometry integrated ablation needle as claimed in claim 1, wherein: the transmission device includes:
the handle comprises a circular plate (61), wherein the circular plate (61) is positioned between a handle head (1) and a handle bin (2), annular convex blocks (611) are arranged on two sides of the circular plate, and the annular convex blocks (611) are respectively in rotary connection with a surface annular groove (51) at one end of the handle head (1) and a surface annular groove (51) at one end of the handle bin (2);
a threaded hole (62) is formed in the circle center of the circular plate (61);
the circumferential surface of the circular plate (61) is provided with a plurality of anti-skidding grooves (63);
the rubber pipe sleeve (64) is arranged in a penetrating mode inside the rubber pipe sleeve (64), and the surface of the rubber pipe sleeve is provided with thread teeth and is in threaded connection with the threaded hole (62).
5. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 4, wherein: one end of the radio frequency needle body (12) positioned in the handle head (1) is non-permanently fixedly connected with the inside of the rubber pipe sleeve (64).
6. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 3 or 4, wherein: a plurality of the inner surfaces of the annular grooves (51) are provided with slip rings made of polytetrafluoroethylene, the outer surfaces of the annular convex blocks (611) are provided with rubber rings, and the rubber rings are rotatably connected with the inside of the slip rings.
7. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 1, characterized in that: the handle bin (2) is internally provided with a heat dissipation assembly:
the heat dissipation assembly includes: a water tank (71) fixedly connected with the inner wall of the handle bin (2), a water inlet pipe (72) and a water outlet pipe (73) fixedly arranged below the water tank (71), and a condensation pipe (74) wound on the outer surface of the microwave cable (16);
a control valve is arranged in the drain pipe (73);
the other end of the microwave cable (16) is positioned inside the water tank (71) and is electrically connected with the microwave connector;
the water inlet (741) of the condensation pipe (74) is positioned inside the water inlet pipe (72);
the drain port 742 of the condensation duct 74 is positioned inside the water tank 71.
8. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 7, wherein: a one-way valve is fixedly arranged in the water outlet (742) of the condensation pipe (74).
9. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 1, characterized in that: the clamping device includes:
the inner surface of the frame (81) is in non-permanent fixed connection with the outer surface of the handle bin (2), and a plurality of brackets (82) are fixedly arranged on one side of the frame (81);
the other ends of the brackets (82) are fixedly connected to the movable ball (83);
one end of the soft rod (84) is arranged on the operating bed, and the other end of the soft rod (84) is provided with a spherical limiting shell (85).
10. The integrated microwave, radio frequency and temperature measurement ablation needle as claimed in claim 9, wherein: the movable ball (83) is rotatably connected inside the spherical limiting shell (85).
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| CN202210808477.7A CN115778526B (en) | 2022-07-11 | 2022-07-11 | Microwave, radio frequency and temperature measurement integrated ablation needle |
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| CN202210808477.7A CN115778526B (en) | 2022-07-11 | 2022-07-11 | Microwave, radio frequency and temperature measurement integrated ablation needle |
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| CN115778526B CN115778526B (en) | 2023-08-29 |
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|---|---|
| CN115778526B (en) | 2023-08-29 |
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