A kind of combined type ablation puncture memberTechnical field
The present invention relates to ablation device field, especially a kind of combined type melts puncture member.
Background technique
Under electric field action, the particle of the difference electrical property inside substance will receive contrary electric field force, when electric field footWhen enough strong, positive and negative particle can not just gather together, and ionic state can be transformed into the ion of free movement, substance eventually by becoming, thisKind conversion can convert at normal temperature, become low-temperature plasma
The working principle of Collation surgery art, i.e., with the production of specific 100kHz ultra low frequency electric energy exciting media (Nacl)Raw plasma, within the temperature range of 40~70 DEG C, the sound wave generated by " plasma " interrupts target tissue molecular link, willProtein and other Direct Pyrolysis is at O2, CO2, N2Equal gases, to complete in the form of " minimally invasive " to ablation of tissue.
Under 100kHz low frequency consistent electric field, particle can then obtain the longer acceleration time, ultimately form with bigger kinetic energyHigh speed charged particle (plasma), directly interrupt molecular link, this external cause frequency is low, greatly reduces compared with high frequency intermolecularFriction heat production, make ablation completed at low temperature (the unlikely temperature for making cell degeneration), to realize Mild wound.
Under usual 100KHz low frequency consistent electric field, excitation one molecule Nacl (plasma generation medium) can generate 8 electronicsThe kinetic energy of volt, and kinetic energy needed for interrupting a peptide bond is 4 electron-volts, and target tissue cell is made to disintegrate as unit of molecule,The Tissue Lysis such as protein are made to be vaporized into H2、O2、CO2、N2With the low-molecular-weight gas such as methane, cutting is formed at low temperature and is disappearedMelt effect, it is completely different that the surgical devices such as this and electric knife and laser, which carry out the working method of vaporising tissue by the high temperature of several Baidu,'s.
Currently, the position that Collation surgery art is used in this inclined human externals such as nasal cavity, tonsillotome is more, this feelingsTarget tissue under condition is generally positioned in a part in the inner wall of the relatively large cavity in human body, using Collation surgery art,Then target tissue is contacted with the part of the surface for the electrode tip for realizing Collation surgery.
But when handling supraspinal illness, especially in the lesion (such as hyperplasia etc.) of spinal cord, not yetA kind of more satisfactory ablation mode, traditional RF ablation or cryoablation, since spinal cord is very fragile, temperature all Tai Gao orIt is too low, it is impossible to be used in the ablation of spinal cord can cause irreversible massive losses to patient, moreover, the lesion of spinal cord be all with" section " is unit, for example, lesion occurs in a certain piece of corresponding spinal cord in the lumbar vertebrae in vertebra, then substantially this block vertebra pairThe spinal cord answered can all generate lesion, such as myeloproliferative, then this when, is very difficult to treatment, generally drug therapy,It is extremely difficult to therapeutic effect, and treatment time is longer.
Summary of the invention
In view of the problems of the existing technology, goal of the invention of the invention is that providing one kind can safely and efficiently be directed toThe combined type that human lesion spinal cord is treated melts puncture member.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of combined type ablation puncture member comprising:
Lining core, the head end of the lining core are provided with head end electrode；
Puncture needle, the cavity that plasma generates medium, institute can be exported from puncture needle head end by being provided in the puncture needleState that lining core is removably engaged in the puncture needle and the head end electrode is stretched out from the head end of puncture needle, the piercing needleEnd is provided with the ring electrode to match with the head end electrode.
It when treating myeleterosis, is punctured in spinal cord by the puncture needle, the head of puncture needle reaches target tissue positionIt sets, after reaching target tissue site, the cavity starts to export plasma generation medium from the head end of puncture needle, when plasma generatesIt is all target tissue (spinal cord of lesion) around puncture needle head end due to narrow space, plasma generates medium very after medium outputIt can be filled into around puncture needle head end fastly, stretch out the head end of lining core from puncture needle head end, head end electrode and ring electricityPole is discharged together, and electric current is formed in target tissue, ultimately forms the electric field of stable frequency, and separation plasma generates medium, generatesPlasma, plasma generate sound wave, and target tissue (such as spinal cord of hyperplasia) cracking is made to be vaporized into H2、O2、CO2、N2And methaneEqual low-molecular-weight gas realize that Inferior turbinate hypertrophy, the spinal cord of lesion are decomposed, and rapidly and efficiently reach therapeutic effect, and entire etc.Ion ablation procedure temperature will not the temperature as RF ablation it is high, will not the temperature as cryoablation it is low, to normal ridgeThe damage of marrow is smaller, protects the health of patient as far as possible.
As a preferred solution of the present invention, the head end electrode can individually discharge, some target tissues (spinal cord)Disease is not to fall ill always, and the single head end electrode can individually discharge, and provides stimulation voltage, can exciteTarget tissue induces an illness, convenient for more accurately looking for target tissue.
As a preferred solution of the present invention, the ring electrode can individually discharge, and principle is for example above-mentioned, make stimulation voltageRelease range it is wider, it is more adaptable.
As a preferred solution of the present invention, it is Nacl solution (i.e. institute that the plasma of the cavity output, which generates medium,State plasma and generate medium), Nacl solution is smaller to the injury of human body, such as there are many more microelement in human body, such as K andMg etc., if excessively will cause adverse effect in these elements injection human body, and Nacl is comparatively, amount human-acceptableThreshold value is larger, and it is also all i.e. our so-called physiological saline with Nacl solution that we, which are usually infused, so, our plasmaIt generates medium and uses Nacl solution, us can not only be met and carry out the condition of Collation surgery, also reduced to the greatest extent pairThe injury of human body, while cost is relatively low, economic performance is more preferable.
As a preferred solution of the present invention, the lining core with the cavity by cooperating, so that cooperation is in the puncture needleInterior, structure is simpler, reduces manufacturing cost, meanwhile, lining core can also be inserted into puncture process in puncture needle, first is that appropriate increaseRigidity blocks the outlet of the cavity of the head end of puncture needle convenient for puncturing, and prevents the tissue fluid of human body from flowing back to and wearsFollow-up work is influenced in pricker, and after puncturing in place, then extract lining core out, plasma, which is carried out, using the channel generates the defeated of mediumOut, it is then inserted into lining core, carries out Inferior turbinate hypertrophy.
As a preferred solution of the present invention, the ring electrode outer surface is helical form, since lining core is out of described cavityIt passes through, is finally pierced by from puncture needle head end, so the position that head end potential is forward in the center of the ring electrode, with regard to ring electricityFor the cyclic structure of pole itself, it can cooperate with head end electrode, form multiple electric currents from multiple directions, to be formed multipleThe electric field for Inferior turbinate hypertrophy of stable frequency, puncture needle can more efficiently melt after being punctured to the target tissue site of spinal cordThere is extraordinary ablation effect at the aura spinal cord that puncture needle head one is enclosed, sectional aura position this for spinal cord,Efficiency is also very high simultaneously, and spiral helicine setting, so that contact of the ring electrode with spinal cord has been become spiral contact path, spiralThe tooth top of structure can cooperate the electric field for Inferior turbinate hypertrophy for being respectively formed multiple stable frequencies, and electric field with head end electrodeThe other end uniformly is extended to from ring electrode one end, more comprehensively to the covering of aura spinal cord, is melted more efficient.
As a preferred solution of the present invention, the lining core end is provided with lining core handle, convenient for operation.
As a preferred solution of the present invention, the puncture needle end is provided with puncture needle handle, convenient for operation.
As a preferred solution of the present invention, it is provided with temperature sensor on the head end electrode and/or ring electrode, to examineThe temperature organized when ablation is surveyed, keeps ablation controllable, improves safety.
The beneficial effects of the present invention are:
It when treating myeleterosis, is punctured in spinal cord by the puncture needle, the head of puncture needle reaches target tissue positionIt sets, after reaching target tissue site, the cavity starts to export plasma generation medium from the head end of puncture needle, when plasma generatesIt is all target tissue (spinal cord of lesion) around puncture needle head end due to narrow space, plasma generates medium very after medium outputIt can be filled into around puncture needle head end fastly, stretch out the head end of lining core from puncture needle head end, head end electrode and ring electricityPole is discharged together, and electric current is formed in target tissue, ultimately forms the electric field of stable frequency, and separation plasma generates medium, generatesPlasma, plasma generate sound wave, and target tissue (such as spinal cord of hyperplasia) cracking is made to be vaporized into H2、O2、CO2、N2And methaneEqual low-molecular-weight gas realize that Inferior turbinate hypertrophy, the spinal cord of lesion are decomposed, and rapidly and efficiently reach therapeutic effect, and entire etc.Ion ablation procedure temperature will not the temperature as RF ablation it is high, will not the temperature as cryoablation it is low, to normal ridgeThe damage of marrow is smaller, protects the health of patient as far as possible.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the head end structural schematic diagram of puncture member of the invention；
Fig. 3 is the structural schematic diagram of puncture needle of the invention；
Fig. 4 is the structural schematic diagram of lining core of the invention；
Marked in the figure: 1. puncture needle, 2. lining core, 11. ring electrode, 111. temperature sensor A, 12. cavity, 13. puncture needle14. puncture needle handle 15. of tube body punctures 21. head end electrode of needle connector, 211. temperature sensor B, 22. lining core tube body23. 24. lining core connector of lining core handle.
Specific embodiment
Below with reference to embodiment and specific embodiment, the present invention is described in further detail.But this should not be understoodFor the scope of the above subject matter of the present invention is limited to the following embodiments, all technologies realized based on summary of the invention of the invention are equalBelong to the scope of the present invention.
Embodiment 1
Picture 1-4, a kind of combined type melts puncture member comprising:
Lining core 2, the head end of the lining core 2 are provided with head end electrode 21, and the head end electrode 21 can individually discharge；
Puncture needle 1, the cavity that plasma generates medium can be exported from 1 head end of puncture needle by being provided in the puncture needle 112 (it is Nacl solution that the plasma that the cavity 12 exports, which generates medium), the lining core 2 is removably engaged in describedIn puncture needle 1 and the head end electrode 21 is stretched out from the head end of puncture needle 1, and 1 head end of puncture needle is provided with and the head endThe ring electrode 11 that electrode 21 matches, the ring electrode 11 can individually discharge, and 11 outer surface of ring electrode is spiralShape.
In the present embodiment, the lining core 2 with the cavity 12 by cooperating, so that cooperation is in the puncture needle 1.
2 end of lining core is provided with lining core handle 23, and lining core connector 24 is provided on lining core handle 23, and lining core 2 hasStandby lining core tube body 22, the lining core tube body 22 and the lining core handle 23 combination form lining core 2, and (lining core tube body 22 is for being inserted intoIn the cavity 12), be connected with corresponding conducting wire on the head end electrode 21, the conducting wire along the lining core tube body 22 inner wall orSetting inside person's pipe shaft, is ultimately connected to the lining core connector 24, and lining core connector 24 is connected to ablatograph, correct termination electrode 21It is controlled.
1 end of puncture needle is provided with puncture needle handle 14, is provided on puncture needle handle 14 and punctures needle connector 15,Puncture needle 1, which has, punctures needle tube body 13, and the puncture needle tube body 13 and the combination of the puncture needle handle 14 form puncture needle 1, instituteIt states and is connected with corresponding conducting wire on ring electrode 11, conducting wire setting inside the inner wall or pipe shaft for puncturing needle tube body 13,It is ultimately connected to the puncture needle connector 15, needle connector 15 is punctured and is connected to ablatograph, ring electrode 11 is controlled.
Such as Fig. 3,4, it is provided with temperature sensor on the head end electrode 21 and ring electrode 11, is arranged on puncture needle 1It is temperature sensor A111, the position such as position that 11 surface of ring electrode is irised out in Fig. 2,3, i.e. Fig. 2, label 111 in 3 is setAt meaning, positioned at the middle position of ring electrode 11,11 outer surface of ring electrode may be provided at, it is also embeddable in ring electrode 11Portion's (being the enlarged drawing of puncture needle 1 in the big ellipse of the dotted line in Fig. 3), being arranged in is temperature sensor B211 in lining core 2, ifThe seated position such as position that 21 surface of head end electrode is irised out in Fig. 4, i.e., at label 211, may be provided at 21 appearance of head end electrodeFace, the also embeddable inside in head end electrode 21, meanwhile, puncture needle handle 14 and 23 surface of lining core handle are both provided with anti-skiddingStrip bulge.