CN110292437B - Targeted ablation needle control system - Google Patents
Targeted ablation needle control system Download PDFInfo
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- CN110292437B CN110292437B CN201910524155.8A CN201910524155A CN110292437B CN 110292437 B CN110292437 B CN 110292437B CN 201910524155 A CN201910524155 A CN 201910524155A CN 110292437 B CN110292437 B CN 110292437B
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- 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
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- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00023—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids closed, i.e. without wound contact by the fluid
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- 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
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- 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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Abstract
The invention discloses a targeted ablation needle control system, and relates to the technical field of medical equipment. The method comprises the following steps: a first needle shaft having an enlarged end connected to the ablation needle and an elongated end connected to the needle handle; a second needle rod which is sleeved on the long end of the first needle rod and is connected with the needle handle, a liquid inlet pipe and a liquid outlet pipe are spirally connected between the first needle rod and the second needle rod and are communicated with each other, and the liquid inlet pipe penetrates out of the needle handle and is communicated with a cooling water pump; the end of the liquid outlet pipe penetrating through the needle handle is provided with a water stop clamp and is communicated with a cooling water tank, and the cooling water tank is communicated with a cooling water pump; a microwave coaxial cable connected with the ablation needle head is arranged in the first needle rod, a microwave radiation antenna and a first controller which are electrically connected are arranged on the needle handle, and the microwave radiation antenna is also electrically connected with the microwave coaxial cable; the first control is electrically connected with the second controller and the control module of the cooling water pump respectively. The problem of when melting the needle, the temperature of melting the syringe needle is transmitted to the needle handle direction along the needle bar surface, burns the normal tissue around the needle bar is solved.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a targeted ablation needle control system.
Background
At present, in the microwave ablation equipment in the market, a cooling circulation channel is mainly arranged in a needle tube, water or gas is introduced into the cooling circulation channel, and the temperature of a rod is controlled in a forced convection heat exchange mode with the tube wall. While the cooling circulation channel inside the needle shaft can reduce the temperature of the needle shaft when the ablation needle is ablating, there is a risk that the temperature of the ablation needle head will be transferred along the outer surface of the needle shaft in the direction of the needle shaft, thereby burning normal tissue around the needle shaft.
Disclosure of Invention
Aiming at the prior art, the invention provides a targeted ablation needle control system, which solves the problem that when an ablation needle is ablated, the temperature of an ablation needle head is transferred to the needle handle direction along the outer surface of a needle rod, so that normal tissues around the needle rod are burnt.
The technical scheme of the invention is realized as follows:
a targeted ablation needle control system comprising: the device comprises an ablation needle head, a first needle rod, a microwave coaxial cable, a second needle rod, a liquid inlet pipe, a liquid outlet pipe, a needle handle, a microwave radiation antenna, a first controller, a second controller, a cooling water tank, a cooling water pump and a water stop clamp; the first end of the first needle rod is an expansion end and is connected with the ablation needle head; the second end of the first needle rod is an elongated end and is connected with the needle handle; the second needle rod is sleeved at the second end of the first needle rod, the liquid inlet pipe and the liquid outlet pipe are both in spiral connection with the outer periphery of the second end of the first needle rod and the inner periphery of the second needle rod, the first end of the liquid inlet pipe is communicated with the first end of the liquid outlet pipe, the second end of the liquid inlet pipe and the second end of the liquid outlet pipe penetrate out of the needle handle, a water stop clamp is arranged at the second end of the liquid outlet pipe, the second end of the liquid outlet pipe is communicated with the cooling water tank, the cooling water tank is further communicated with the cooling water pump, and the second end of the liquid inlet pipe is communicated with the cooling water pump; one end of the second needle rod is connected with the needle handle; wherein, during puncture, the first needle bar and the second needle bar are connected into a smooth needle bar; during ablation, the liquid inlet pipe and the liquid outlet pipe expand due to cooling water filled in by the cooling water pump, and the second needle rod is separated from the first needle rod; the first needle rod is internally provided with the microwave coaxial cable connected with the ablation needle head, the needle handle is provided with the microwave radiation antenna and the first controller which are electrically connected, and the microwave radiation antenna is also electrically connected with the microwave coaxial cable; the first controller is electrically connected with the second controller and the control module of the cooling water pump respectively.
Optionally, the second needle bar is provided with a first pipeline, a first opening is arranged at a first end of the first pipeline, which is opposite to the needle handle, a second end of the first pipeline is connected with the needle handle, a movable rod is arranged in the first pipeline, a first end of the movable rod is used for closing or opening the first opening, and a second end of the movable rod is connected with a connecting piece; correspondingly, a through groove is formed in the position, corresponding to the second end of the movable rod, of the needle handle, and the connecting piece penetrates out of the through groove; first pipeline with still be equipped with the second pipeline between the outer wall of second needle bar, the second pipeline is relative the first end of needle handle is provided with and is used for the intercommunication the second opening of first pipeline, the second end of second pipeline with the needle handle is connected, and is corresponding, the needle handle still is equipped with the injection interface, just the first end of injection interface with the second end intercommunication of second pipeline, the second end of injection interface is used for connecting external equipment.
Optionally, the second needle bar sequentially comprises from inside to outside: an outer wall of the second conduit, the first conduit, and the second needle shaft.
Optionally, the connecting piece is a rigid connecting wire, and the through groove is a wire groove matched with the diameter of the rigid connecting wire.
Optionally, the connecting piece is the movable rod, and the second end of the movable rod penetrates through the through groove.
Optionally, the external device includes: an injection pump; the injection port of the injector of the injection pump is connected with the injection port, and the control module of the injection pump is electrically connected with the second controller.
Optionally, the external device further includes: a medical three-way valve and a suction apparatus; the first end of the medical three-way valve is connected with the injection interface, the second end of the medical three-way valve is connected with the injection port of the injector of the injection pump, and the third end of the medical three-way valve is connected with the suction port of the suction hose of the suction apparatus; the control module of the aspirator is electrically connected with the second controller.
Optionally, an annular positioning groove is formed in the ablation needle head; still be equipped with the insulator in the first needle bar, the insulator with it connects to melt the syringe needle, just microwave coaxial cable runs through the insulator with it connects to melt the syringe needle.
Optionally, the insulator is a tetrafluoro insulator, the liquid inlet pipe and the liquid outlet pipe are made of polyamide polymer materials or modified polyamide polymer materials or polymer composite materials, and the first needle bar and the second needle bar are coated with polytetrafluoroethylene coatings or parylene coatings.
The invention has the beneficial effects that:
because the liquid inlet pipe and the liquid outlet pipe are spirally connected with the periphery of the first needle rod and the inner periphery of the second needle rod, when the liquid inlet pipe and the liquid outlet pipe are in an unexpanded state, the outer surfaces of the first needle rod and the second needle rod are connected into a complete and smooth outer surface, and the first needle rod and the second needle rod form the complete needle rod. When the targeted ablation needle is inserted for puncture, the structural strength of the complete needle rod is higher, and the condition of needle breakage can be avoided; when melting, cooling water pump fills the feed liquor pipe with the cooling water in the cooling water tank in, press from both sides the second end of pressing from both sides tight drain pipe through the stagnant water, the flow of control drain pipe, make feed liquor pipe and drain pipe inflation, prop the separation with second needle bar and first needle bar, thereby melt the temperature that syringe needle and first needle bar produced and can not directly transmit for the second needle bar along the surface of first needle bar, and then the temperature that the solution melts the syringe needle transmits to the needle handle direction along the needle bar surface, thereby the problem of the normal tissue around the needle bar of burning.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a block diagram of a targeted ablation needle control system according to an embodiment of the present invention.
Fig. 2 is a sectional structural view of a targeted ablation needle provided by an embodiment of the invention during ablation.
Fig. 3 is a sectional view of the second needle bar according to the embodiment of the present invention.
Fig. 4 is a schematic circuit connection diagram of a targeted ablation needle control system according to an embodiment of the present invention.
In the figure, 1-ablation needle; 11-annular positioning groove; 2-a first needle bar; 3-microwave coaxial cable; 4, an insulator; 5-a second needle bar; 52-a first conduit; 523-movable rod; 525-connecting piece; 54-a second conduit; 6-liquid inlet pipe; 7-a liquid outlet pipe; 8-needle handle; 83-an injection interface; 84-through slots; 9-a microwave radiating antenna; 100-a first controller; 110-a second controller; 120-a cooling water pump; 122-a cooling water tank; 124-water stop clip; 130-a syringe pump; 150-suction apparatus.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, fig. 1 is a structural diagram of a targeted ablation needle control system according to an embodiment of the present invention. Fig. 2 is a sectional structural view of a targeted ablation needle provided by an embodiment of the invention during ablation. Fig. 3 is a sectional view of the second needle bar 5 according to the embodiment of the present invention. Fig. 4 is a schematic circuit connection diagram of a targeted ablation needle control system according to an embodiment of the present invention.
A targeted ablation needle control system comprising: the device comprises an ablation needle head 1, a first needle rod 2, a microwave coaxial cable 3, a second needle rod 5, a liquid inlet pipe 6, a liquid outlet pipe 7, a needle handle 8, a microwave radiation antenna 9, a first controller 100, a second controller 110, a cooling water tank 122, a cooling water pump 120 and a water stop clamp 124; the first end of the first needle rod 2 is an expansion end and is connected with the ablation needle head 1; the second end of the first needle bar 2 is a slender end and is connected with the needle handle 8; the second needle bar 5 is sleeved at the second end of the first needle bar 2, the liquid inlet pipe 6 and the liquid outlet pipe 7 are both in spiral connection with the periphery of the second end of the first needle bar 2 and the inner periphery of the second needle bar 5, the first end of the liquid inlet pipe 6 is communicated with the first end of the liquid outlet pipe 7, the second end of the liquid inlet pipe 6 and the second end of the liquid outlet pipe 7 penetrate out of the needle handle 8, the second end of the liquid outlet pipe 7 is provided with a water stop clamp 124, the second end of the liquid outlet pipe 7 is communicated with a cooling water tank 122, the cooling water tank 122 is also communicated with a cooling water pump 120, and the second end of the liquid inlet pipe 6 is communicated with the; one end of the second needle rod 5 is connected with the needle handle 8; wherein, during puncture, the first needle bar 2 and the second needle bar 5 are connected into a smooth needle bar; during ablation, the liquid inlet pipe 6 and the liquid outlet pipe 7 expand due to the filled cooling water, and the second needle rod 5 is separated from the first needle rod 2; a microwave coaxial cable 3 connected with the ablation needle head 1 is arranged in the first needle rod 2, a microwave radiation antenna 9 and a first controller 100 which are electrically connected are arranged on the needle handle 8, and the microwave radiation antenna 9 is also electrically connected with the microwave coaxial cable 3; the first controller 100 is electrically connected to the second controller 110 and the control module of the cooling water pump 120, respectively.
It will be appreciated that the first controller 100 is an existing embedded controller, such as those of the STM 32 series or the STM 51 series, and those of the ARM architecture. The second controller 110 is an existing electronic device, such as a mobile phone, a tablet, a PDA (Personal Digital Assistant), a computer, and the like. The cooling water pump 120 can be the cooling water pump of current model, and the cooling water pump 120 includes the control module and the pump body, and cooling water tank's first input port and the second end intercommunication of drain pipe 7, cooling water tank's second input port are used for adding the cooling water from the outside, and cooling water tank's delivery outlet and the input port of the pump body intercommunication, the delivery outlet of the pump body and the second end intercommunication of feed liquor pipe 6 constitute cooling circulation system. The working principle of the cooling circulation system is as follows: add the cooling water through cooling water tank's second input port, the control module control pump body is in the feed liquor pipe 6 with the second end pump income feed liquor pipe of cooling water follow feed liquor pipe 6, and the cooling water flows to the first end of feed liquor pipe 6, then the first end that the cooling water flows through drain pipe 7 from feed liquor pipe 6 and drain pipe 7, then the second end outflow of drain pipe 7 is followed to the cooling water, gets into in the cooling water tank to 2 cooling to first needle bars. Then, a water stop clip 124 is disposed at the second end of the liquid outlet pipe 7, and the second end of the liquid outlet pipe 7 is clamped by the water stop clip 124 (which may be the second end of the liquid outlet pipe 7 clamped by the water stop clip 124 manually operated by the medical staff), so that the flow rate of the cooling water flowing out of the liquid outlet pipe 7 is less than that of the cooling water filled in the liquid inlet pipe 6, the liquid inlet pipe 6 and the liquid outlet pipe 7 are expanded, and the second needle bar 5 is separated from the first needle bar 2.
Optionally, an annular positioning groove 11 is arranged inside the first end of the ablation needle 1; still be equipped with insulator 4 in the first needle bar 2, insulator 4 is connected with ablation syringe needle 1, and microwave coaxial cable 3 runs through insulator 4 and is connected with ablation syringe needle 1. Specifically, when the ultrasonic beam is propagated to inside by the surface of target ablation needle, when ultrasonic detects the annular positioning groove 11 of ablation syringe needle 1, because annular positioning groove 11 can refract and reflect the ultrasonic wave for form the bright spot on the fluorescent screen of B ultrasonic, medical personnel can see the trend of target ablation needle in internal tissue clearly on the fluorescent screen of B ultrasonic, have improved the definition that the target ablation needle shows in the B ultrasonic. Understandably, because the material of the insulator 4 is different from that of the first needle bar 2, the position of the insulator 4 can be detected by the ultrasonic beam, and the position information of the insulator 4 is displayed on a fluorescent screen of the B-ultrasonic, so that the annular positioning groove 11 and the insulator 4 are positioned together by the ultrasonic beam, and medical staff can know the position of the targeted ablation needle in the internal tissue by observing the fluorescent screen of the B-ultrasonic, and then perform corresponding operations, such as adjusting the puncture position or ablating. The insulator 4 arranged in the first needle rod 2 can firmly support and fix the microwave coaxial cable 3, so that the microwave coaxial cable 3 is well contacted with the second end of the ablation needle head 1, and the condition that abnormal high temperature is generated or the preset ablation temperature cannot be generated when the microwave coaxial cable 3 is not contacted with the ablation needle head 1 in work is avoided. Optionally, the insulator 4 is a tetrafluoro insulator, the liquid inlet pipe 6 and the liquid outlet pipe 7 are made of a polyamide polymer material or a modified polyamide polymer material or a polymer composite material, and the first needle bar 2 and the second needle bar 5 are coated with a polytetrafluoroethylene coating or a parylene coating. Specifically, the first needle bar 2 and the second needle bar 5 are coated with coatings to prevent the targeted ablation needle from adhering to the tissues in the body.
Specifically, the first end of the ablation needle 1 is used for percutaneous puncture, and can be a conical puncture head or a three-blade puncture head. It will be appreciated that the first end of the first needle shaft 2 to which the ablation needle 1 is connected is an enlarged end, i.e. the first end of the first needle shaft 2 has a larger diameter than the second end of the first needle shaft 2. Because the equal spiral connection of feed liquor pipe 6 and drain pipe 7 is first needle bar 2 periphery and second needle bar 5 interior week, it absorbs heat to flow through the cooling water in feed liquor pipe 6 and the drain pipe 7, reduce the temperature of 2 second ends of first needle bar, then the temperature of 2 second ends of first needle bar reduces, there is the difference in temperature first needle bar 2 second ends and melts syringe needle 1 and 2 first ends of first needle bar, make the temperature of melting syringe needle 1 and 2 first ends of first needle bar to the transmission of 2 second ends of first needle bar, thereby reach and melt the needle bar of needle and carry out refrigerated effect to the target.
It can be understood that the first needle rod 2 and the second needle rod 5 of the targeted ablation needle have different structures according to the states of the liquid inlet pipe 6 and the liquid outlet pipe 7. Liquid inlet pipe 6 and drain pipe 7 are in when not inflation state, the surface of first needle bar 2 and second needle bar 5 connects into a complete, level and smooth surface, constitute complete needle bar, make the target melt the needle when the needle penetration, the puncture power not only through transmitting for first needle bar 2 second end from needle handle 8, liquid inlet pipe 6 and drain pipe 7, transmit again for first needle bar 2 first end and melt this route transmission of syringe needle 1, still transmit for second needle bar 5 from needle handle 8, transmit again for first needle bar 2 first end and melt this route transmission of syringe needle 1, thereby can avoid appearing the condition of disconnected needle. When melting, feed liquor pipe 6 and drain pipe 7 expand because the cooling water that fills, feed liquor pipe 6 and drain pipe 7 strut separation with second needle bar 5 and first needle bar 2 to the surface of first needle bar 2 and the surface of second needle bar 5 are two surfaces that do not contact each other respectively, melt the temperature that syringe needle 1 and first needle bar 2 produced and can not directly transmit for second needle bar 5 along the surface of first needle bar 2, and then solve the temperature that melts syringe needle 1 and transmit to 8 directions of needle bar outside surface, thereby burn the problem of the normal tissue around the needle bar. And the second needle rod 5 is spread, so that the targeted ablation needle and the surrounding tissues in the body can be tightly attached together, the fastening effect of the targeted ablation needle and the surrounding tissues is increased, and the ablation effect is prevented from having larger deviation from the expected effect due to the movement of the targeted ablation needle during ablation.
Understandably, after the ablation of the targeted ablation needle is finished, when the needle withdrawing operation is required, the cooling water in the liquid inlet pipe 6 and the liquid outlet pipe 7 is pumped out through the cooling water pump 120, so that the liquid inlet pipe 6 and the liquid outlet pipe 7 are restored to the unexpanded state; accordingly, the second needle bar 5 is connected to the first needle bar 2 as a complete, smooth needle bar. Thereby make things convenient for medical personnel to move back the needle operation, avoid appearing the condition of disconnected needle when moving back the needle to and avoid moving back the condition that second needle bar 5 can strut human tissue, expansion wound when the needle.
Optionally, the second needle bar 5 is provided with a first conduit 52, a first end of the first conduit 52 opposite to the needle handle 8 is provided with a first opening, a second end of the first conduit 52 is connected with the needle handle 8, a movable rod 523 is arranged in the first conduit 52, a first end of the movable rod 523 is used for closing or opening the first opening, and a second end of the movable rod 523 is connected with a connecting piece 525; correspondingly, a through groove 84 is further formed in the position, corresponding to the second end of the movable rod 523, of the needle handle 8, and the connecting element 525 penetrates through the through groove 84; a second pipeline 54 is further arranged between the first pipeline 52 and the outer wall of the second needle rod 5, a second opening used for communicating the first pipeline 52 is arranged at the first end, opposite to the needle handle 8, of the second pipeline 54, the second end of the second pipeline 54 is connected with the needle handle 8, correspondingly, the needle handle 8 is further provided with an injection interface 83, the first end of the injection interface 83 is communicated with the second end of the second pipeline 54, and the second end of the injection interface 83 is used for connecting external equipment.
Specifically, because the ablation needle among the prior art realizes that the injection function has seted up injection channel on the needle bar of ablation needle, can inject normal saline or other liquid medicines to the internal body through injection channel, however injection channel is inside empty when not injecting, has the condition of injection channel intercepting internal tissue during the puncture to and can inject the air in the injection channel into the internal body when injecting. A first opening provided at a first end of the first duct 52 for communicating the first duct 52 with an external space corresponds to an opening of an injection passage, and the first opening can be closed or opened depending on the position of the movable lever 523 in the first duct 52. The medical staff can control the position of the movable rod 523 in the first conduit 52 through the connecting member 525. The second conduit 54 communicates with the first conduit 52 through the second opening and communicates with the external space through the first opening, which is equivalent to an injection channel, so that the injection channel of the targeted ablation needle cannot intercept the body tissue during puncturing. It will be appreciated that when the movable bar 523 closes the first opening, the second conduit 54 can be filled with sterile fluid (e.g., saline), thereby avoiding the injection of air into the body during injection. Understandably, the temperature of the first end of the ablation needle head 1 and the first needle bar 2 is transmitted to the second end of the first needle bar 2, the temperature of the second end of the first needle bar 2 can be reduced through the liquid inlet pipe 6 and the liquid outlet pipe 7 which are spirally connected on the first needle bar 2, if the temperature of the second end of the first needle bar 2 is transmitted to the second needle bar 5, the temperature of the second needle bar 5 can be reduced through the sterile liquid in the second pipeline 54, thereby achieving better cooling effect, and enabling the second needle bar 5 not to burn the surrounding normal tissues. Alternatively, another structure of the second shank 5 is designed such that the second shank 5 comprises, in sequence from inside to outside: the second conduit 54, the first conduit 52 and the outer wall of the second needle shaft 5.
Optionally, the connecting member 525 is a rigid connecting wire, and the through groove 84 is a wire groove matched with the diameter of the rigid connecting wire. Specifically, the rigid connection line means that the connection line has a certain bending resistance, and the medical staff can not only pull the movable rod 523 to move in the first pipeline 52 through the rigid connection line, so that the movable rod 523 opens the first opening; the movable rod 523 can also be pushed to move in the first pipeline 52, so that the movable rod 523 closes the first opening, and the rigid connecting line can be a metal wire such as a copper wire. It can be understood that the rigid connection line and the flexible connection line are two concepts of opposition, however, the flexible connection line (e.g., nylon line, polyester fiber line) can only pull the movable rod 523 to move in the first duct 52 and open the first opening, and can not push the movable rod 523 to move in the first duct 52 and close the first opening. It will be appreciated that to prevent the movable bar 523 from sliding out through the through slot 84 at the needle shaft 8, the diameter of the rigid connecting wire is smaller than the diameter of the movable bar 523, the diameter of the first end of the through slot 84 near the first duct 52 or the movable bar 523 is equal to the diameter of the movable bar 523, and the diameter of the second end of the through slot 84 opposite to the first end of the through slot 84 is equal to the diameter of the rigid connecting wire, i.e. the cross section of the through slot 84 is trapezoidal. Optionally, the connecting element 525 is a movable rod 523, and a second end of the movable rod 523 passes through the through slot 84. Specifically, the medical staff closes or opens the first opening by moving the second end of the movable lever 523.
Optionally, the external device includes: a syringe pump 130; the injection port of the injector of the syringe pump 130 is connected to the injection interface 83, and the control module of the syringe pump 130 is electrically connected to the second controller 110. Specifically, syringe pump 130 is a syringe pump of a conventional type and second controller 110 is capable of controlling an operating state of syringe pump 130, such as controlling an injection speed of syringe pump 130. The syringe of the syringe pump 130 contains the sterile liquid therein, and the syringe pump 130 can achieve high-precision, smooth, pulsation-free liquid transfer, thereby injecting the sterile liquid into the second tube 54.
Optionally, the external device further includes: a medical three-way valve and aspirator 150; a first end of the medical three-way valve is connected with the injection port 83, a second end of the medical three-way valve is connected with an injection port of an injector of the injection pump 130, and a third end of the medical three-way valve is connected with a suction port of a suction hose of the suction apparatus 150; the control module of the suction apparatus 150 is electrically connected to the second controller 110. Specifically, the first end and the second end of the medical three-way valve are communicated during injection, so that the syringe of the syringe pump 130 can inject sterile liquid into the injection port 83, when the injected sterile liquid is too much and needs to be sucked out or pus in the body needs to be sucked out, the first end and the third end of the medical three-way valve are communicated, so that the suction port of the suction hose of the aspirator 150 is communicated with the injection port 83, and the second controller 110 controls the aspirator 150 to suck out the redundant sterile liquid and the pus.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A targeted ablation needle control system, comprising: the device comprises an ablation needle head, a first needle rod, a microwave coaxial cable, a second needle rod, a liquid inlet pipe, a liquid outlet pipe, a needle handle, a microwave radiation antenna, a first controller, a second controller, a cooling water tank, a cooling water pump and a water stop clamp;
the first end of the first needle rod is an expansion end and is connected with the ablation needle head; the second end of the first needle rod is an elongated end and is connected with the needle handle; the second needle rod is sleeved at the second end of the first needle rod, the liquid inlet pipe and the liquid outlet pipe are both in spiral connection with the outer periphery of the second end of the first needle rod and the inner periphery of the second needle rod, the first end of the liquid inlet pipe is communicated with the first end of the liquid outlet pipe, the second end of the liquid inlet pipe and the second end of the liquid outlet pipe penetrate out of the needle handle, a water stop clamp is arranged at the second end of the liquid outlet pipe, the second end of the liquid outlet pipe is communicated with the cooling water tank, the cooling water tank is further communicated with the cooling water pump, and the second end of the liquid inlet pipe is communicated with the cooling water pump; one end of the second needle rod is connected with the needle handle; wherein, during puncture, the first needle bar and the second needle bar are connected into a smooth needle bar; during ablation, the liquid inlet pipe and the liquid outlet pipe expand due to the filled cooling water, and the liquid inlet pipe and the liquid outlet pipe separate the second needle rod from the first needle rod;
the first needle rod is internally provided with the microwave coaxial cable connected with the ablation needle head, the needle handle is provided with the microwave radiation antenna and the first controller which are electrically connected, and the microwave radiation antenna is also electrically connected with the microwave coaxial cable; the first controller is electrically connected with the second controller and the control module of the cooling water pump respectively.
2. The targeted ablation needle control system of claim 1, wherein the second needle shaft is provided with a first conduit, the first conduit is provided with a first opening opposite to the first end of the needle handle, the second end of the first conduit is connected with the needle handle, the first conduit is provided with a movable rod, the first end of the movable rod is used for closing or opening the first opening, and the second end of the movable rod is connected with a connecting piece; correspondingly, a through groove is formed in the position, corresponding to the second end of the movable rod, of the needle handle, and the connecting piece penetrates out of the through groove;
first pipeline with still be equipped with the second pipeline between the outer wall of second needle bar, the second pipeline is relative the first end of needle handle is provided with and is used for the intercommunication the second opening of first pipeline, the second end of second pipeline with the needle handle is connected, and is corresponding, the needle handle still is equipped with the injection interface, just the first end of injection interface with the second end intercommunication of second pipeline, the second end of injection interface is used for connecting external equipment.
3. The targeted ablation needle control system of claim 2, wherein the second needle shaft comprises, in order from the inside to the outside: an outer wall of the second conduit, the first conduit, and the second needle shaft.
4. The targeted ablation needle control system of claim 2, wherein the connector is a rigid connecting wire and the through slot is a wire slot matching a diameter of the rigid connecting wire.
5. The targeted ablation needle control system of claim 2, wherein the connector is the movable rod, and the second end of the movable rod passes out through the through slot.
6. The targeted ablation needle control system of claim 2, wherein the external device comprises: an injection pump; the injection port of the injector of the injection pump is connected with the injection port, and the control module of the injection pump is electrically connected with the second controller.
7. The targeted ablation needle control system of claim 6, wherein the external device further comprises: a medical three-way valve and a suction apparatus;
the first end of the medical three-way valve is connected with the injection interface, the second end of the medical three-way valve is connected with the injection port of the injector of the injection pump, and the third end of the medical three-way valve is connected with the suction port of the suction hose of the suction apparatus; the control module of the aspirator is electrically connected with the second controller.
8. The targeted ablation needle control system of claim 1, wherein the ablation needle head is provided with an annular positioning groove therein; still be equipped with the insulator in the first needle bar, the insulator with it connects to melt the syringe needle, just microwave coaxial cable runs through the insulator with it connects to melt the syringe needle.
9. The system of claim 8, wherein the insulator is a tetrafluoro insulator, the liquid inlet pipe and the liquid outlet pipe are made of a polyamide polymer material or a modified polyamide polymer material or a polymer composite material, and the first needle bar and the second needle bar are coated with a teflon coating or a parylene coating.
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