CN209450651U

CN209450651U - A kind of radiofrequency ablation therapy puncture needle

Info

Publication number: CN209450651U
Application number: CN201821638789.3U
Authority: CN
Inventors: 林恩德; 吴国洋; 林福生; 陈卉品; 陈丽娟
Original assignee: Zhongshan Hospital Xiamen University
Current assignee: Zhongshan Hospital Xiamen University
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2019-10-01
Anticipated expiration: 2028-10-10

Abstract

The utility model discloses a kind of radiofrequency ablation therapy puncture needle, including hollow needle, hand holding handle and internal probe；Internal probe is provided with temperature sensor close to one end of the syringe needle of the hollow needle；Hand holding handle is also bonded the block for being provided with and preventing the internal probe abjection；Internal probe is additionally provided with spherical detection electrode close to one end of the syringe needle of the hollow needle；The first conducting wire and the second conducting wire are equipped in the internal probe, first conducting wire is connect with the temperature sensor；Second conducting wire is connect with the spherical detection electrode.The utility model its external health tissues percutaneous puncture is carried out monitoring temperature and had to carry out Neural monitoring when having the characteristics that radiofrequency ablation therapy.

Description

A kind of radiofrequency ablation therapy puncture needle

Technical field

The utility model relates to medical instruments fields, and in particular to be a kind of radiofrequency ablation therapy puncture needle.

Background technique

Radiofrequency ablation therapy is generated using the mutual collision of ion high speed oscillation, the friction in radio-frequency current excitation tissue High fever makes tumor tissue cell, tissue dewatering form a kind of physical therapy that locality coagulation necrosis treats tumour.RF ablation Treat the biological characteristics that tumour additionally depends on tumor tissues itself.Tumor tissues are deposited due to the defect on Histological anatomy The features such as in blood supply insufficiency, anoxic is partially warm, thermo-labile, provides theoretical basis for radiofrequency ablation therapy.When treatment, ablation electricity Pole under the guidance of images, is directly pierced into the tumor locus of patient, acts on tumor organism tissue.

Due to radiofrequency ablation therapy be using generate high fever to pathological tissues carry out RF ablation, ablating electrode be pierced into Inside tumor lacks and carries out effective temperature monitoring to surrounding health tissue, once misoperation is easy in radiofrequency ablation procedures Cause health tissues thermal damage.Lack the device that a kind of percutaneous puncture carries out temperature monitoring to surrounding health tissue currently on the market Tool.

Appear nerve due to can visually look at lower dissection when radiofrequency ablation therapy is without image of Buddha surgical operation straight, it is necessary to rely on shadow Neurological region is judged indirectly as guiding, and some comparatively fine neural such as recurrent nerves, being can not be from iconographies such as ultrasounds On judge, there are certain difficulty for Neural monitoring.At present radiofrequency ablation therapy can only blindness carry out locality protection, can not It is accurately positioned neural traveling, it is possible to causing neurotrosis, as the recurrent nerve injury in thyroid gland RF ablation causes The complication such as patient's sound is hoarse.

In view of this, the present inventor furthers investigate in view of the above-mentioned drawbacks in the prior art, there is this case generation then.

Utility model content

The main purpose of the utility model is to provide a kind of radiofrequency ablation therapy puncture needles, control with RF ablation Monitoring temperature is carried out to external health tissues percutaneous puncture when treatment and has the characteristics that carry out Neural monitoring.

In order to achieve the above objectives, the solution of the utility model is:

A kind of radiofrequency ablation therapy puncture needle, wherein including hollow needle, hand holding handle and internal probe；The internal probe leans on One end of the syringe needle of the nearly hollow needle is provided with temperature sensor；The hand holding handle, which is also bonded to be provided with, prevents the internal probe The block of abjection；The internal probe is additionally provided with spherical detection electrode close to one end of the syringe needle of the hollow needle；The interior spy The first conducting wire and the second conducting wire are equipped in needle, first conducting wire is connect with the temperature sensor；Second conducting wire with The spherical shape detection electrode connection.

Further, one end of the separate syringe needle of the hollow needle is fixedly connected with the hand holding handle, is set in the hand holding handle It is equipped with the receiving deep gouge communicated with the inner cavity of the hollow needle, the internal probe is slidably disposed on the inner cavity of the hollow needle In the receiving deep gouge.

Further, the hollow needle has inclined-plane piercing needle, and the hollow wire surface is provided with insulating coating.

Further, the hand holding handle and the block are made of medical grade PP plastics.

After adopting the above structure, the utility model relates to a kind of radiofrequency ablation therapy puncture needle, with prior art phase Than at least having the advantages that

One, when carrying out radiofrequency ablation therapy, by it is described puncture pin puncture to pathological tissues around health tissues in, temperature It spends sensor and temperature monitor is connected by the first conducting wire, temperature real-time monitoring is carried out to health tissues by temperature sensor, Once can turn ablation power or pause ablation down immediately it was found that temperature is more than limit value, be further continued for treating after adjustment, keep away Exempt to cause surrounding health tissue irreversible thermal damage.

Two, the hand holding handle is also bonded the block for being provided with and preventing the internal probe abjection, can not only be convenient for institute in this way The installation for stating internal probe after being installed, is bonded on the hand holding handle by block, and the internal probe can be prevented from described It accommodates and deviates from deep gouge.

Three, electro photoluminescence tissue around is discharged by spherical detection electrode, excitation nerve generates nerve impulse and conducts to branch Electromyography signal is generated with muscle, electromyography signal is passed Neural monitoring instrument back by second conducting wire, formed on a display screen specific Waveform and caution sound, to understand neural traveling and assess nervous function in tumour ablation treating, to avoid being possible to draw The neurotrosis risen.

Detailed description of the invention

Fig. 1 is structural schematic diagram of the temperature sensor in the hollow needle front.

Fig. 2 is the schematic diagram of the section structure of the internal probe.

Fig. 3 is structural schematic diagram of the temperature sensor in the hollow needle.

Fig. 4 is the decomposition diagram of the puncture needle.

In figure: hollow needle 1；Syringe needle 11；Hand holding handle 2；Accommodate deep gouge 21；First card slot 22；Second card slot 23；Block 24； Internal probe 3；Catch bar 31；Temperature sensor 4；First conducting wire 41；Spherical detection electrode 5；Second conducting wire 51.

Specific embodiment

In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into Row elaborates.

As shown in Figures 1 to 4, for the utility model relates to a kind of radiofrequency ablation therapy puncture needle, including hollow Needle 1, hand holding handle 2 and internal probe 3；The internal probe 3 is provided with temperature sensor close to one end of the syringe needle 11 of the hollow needle 1 4；The hand holding handle 2 is also bonded the block 24 for being provided with and preventing the internal probe 3 from deviating from；The internal probe 3 is close to the hollow One end of the syringe needle 11 of needle 1 is additionally provided with spherical detection electrode 5；The first conducting wire 41 and second is equipped in the internal probe 3 to lead Line 51, first conducting wire 41 are connect with the temperature sensor 4；Second conducting wire 51 connects with the spherical detection electrode 5 It connects.

When carrying out radiofrequency ablation therapy, by it is described puncture pin puncture to pathological tissues around health tissues in, temperature Sensor 4 connects temperature monitor by the first conducting wire 41, carries out temperature to health tissues by temperature sensor 4 and supervises in real time It surveys, once discovery temperature is more than limit value, ablation power or pause ablation can be turned down immediately, be further continued for controlling after adjustment It treats, avoids causing surrounding health tissue irreversible thermal damage.

Neural monitoring, needle of the internal probe 3 close to the hollow needle 1 can be carried out when in order to carry out temperature monitoring simultaneously First 11 one end is additionally provided with spherical detection electrode 5.Electro photoluminescence tissue around, excitation nerve are discharged by spherical detection electrode 5 It generates nerve impulse and conducts to muscle generation electromyography signal is dominated, electromyography signal passes neural prison back by second conducting wire 51 Instrument is surveyed, forms specific waveforms and caution sound on a display screen, to understand neural traveling and assess mind in tumour ablation treating Through function, to avoid neurotrosis caused by being possible to.

The spherical shape detection electrode 5 is spherical in shape, and spherical 5 diameter of detection electrode is 1mm, can be avoided sharp property in monitoring process Damage structures surrounding.

Preferably, one end of the separate syringe needle 11 of the hollow needle 1 is fixedly connected with the hand holding handle 2, the hand holding handle 2 It is inside provided with the receiving deep gouge 21 communicated with the inner cavity of the hollow needle 1, the internal probe 3 is slidably disposed on the hollow In the inner cavity of needle 1 and the receiving deep gouge 21.When puncture, the temperature sensor 4 and the spherical detection electrode 5 are contained in institute State the interior intracavitary of hollow needle 1；When needing to monitor, 3 forward slip of internal probe, temperature sensor 4 and spherical detection electrode 5 Component is monitored.

Preferably, the hollow needle 1 has inclined-plane piercing needle 11, and 1 surface of hollow needle is provided with insulating coating.Absolutely Edge coating can be avoided hollow needle 1 and cause adverse effect to Neural monitoring, guarantee effective progress of Neural monitoring.

The internal probe 3 is formed with the catch bar 31 of the vertical internal probe 3 close to one end of the hand holding handle 2； Be additionally provided in the hand holding handle 2 communicated with the receiving deep gouge 21 and respectively by the catch bar 31 be located in reception position and The first card slot 22 and the second card slot 23 of operating position.Preferably, insulating coating is provided on the catch bar 31；The promotion Also insulation sleeve (not shown) can be set on bar 31, avoided hand contact from influencing Neural monitoring, guarantee monitoring effect.

By accommodating deep gouge 21, the first card slot 22 and the cooperation of the second card slot 23, when puncture, the catch bar 31 is connected to the In one card slot 22, the temperature sensor 4 is located at the interior intracavitary of the hollow needle 1 at this time；When puncture finishes progress temperature monitoring, The catch bar 31 is connected in the second card slot 23, before the temperature sensor 4 is located at the syringe needle 11 of the hollow needle 1 at this time Side.Since there are the clamping structures of the first card slot 22 and the second card slot 23, the internal probe 3 is in puncture process and monitoring process It is able to maintain a stable state, avoiding stretching out in puncture process retracting when causing on tissue and damage and monitor influences monitoring effect Fruit.

The hand holding handle 2 is also bonded the block 24 for being provided with and preventing the internal probe 3 from deviating from, and can not only be convenient for institute in this way The installation for stating internal probe 3 after being installed, is bonded on the hand holding handle 2 by block 24, can prevent the internal probe 3 Deviate from from the receiving deep gouge 21.

Preferably, the hand holding handle 2 and the block 24 are made of medical grade PP plastics.Medical staff holds described hand-held Handle 2, is had the advantages that using PP plastics compared to metal materials such as stainless steels anti-skidding and thermally conductive slow, enables medical staff side Just puncture needle described in use can be avoided slippage and cause operation error because hand is ice-cold.

The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.

Claims

1. a kind of radiofrequency ablation therapy puncture needle, which is characterized in that including hollow needle, hand holding handle and internal probe；The interior spy Needle is provided with temperature sensor close to one end of the syringe needle of the hollow needle；The hand holding handle is also bonded to be provided with and prevent in described The block of probe abjection；The internal probe is additionally provided with spherical detection electrode close to one end of the syringe needle of the hollow needle；It is described The first conducting wire and the second conducting wire are equipped in internal probe, first conducting wire is connect with the temperature sensor；Described second leads Line is connect with the spherical detection electrode.

2. a kind of radiofrequency ablation therapy puncture needle as described in claim 1, which is characterized in that the separate needle of the hollow needle One end of head is fixedly connected with the hand holding handle, and it is heavy that the receiving communicated with the inner cavity of the hollow needle is provided in the hand holding handle Slot, the internal probe are slidably disposed in the inner cavity and the receiving deep gouge of the hollow needle.

3. a kind of radiofrequency ablation therapy puncture needle as described in claim 1, which is characterized in that the hollow needle has inclined-plane Piercing needle, the hollow wire surface are provided with insulating coating.

4. a kind of radiofrequency ablation therapy puncture needle as claimed in claim 2, which is characterized in that the hand holding handle and the gear Block is made of medical grade PP plastics.