CN205031362U - Plasma radio frequency melts puncture trocar composite set - Google Patents

Abstract

The utility model provides a plasma radio frequency melts puncture trocar composite set. The utility model relates to a medical instrument field. Including external puncture trocar and built -in radio frequency pjncture needle, external puncture trocar comprises needle point, needle body and the needle wing, and needle point and needle body are the stainless steel structure, and the outside has teflon coating, has insulating effect, built -in radio frequency pjncture needle comprises needle point, needle body, needle file and nook closing member, and needle point and needle body are the stainless steel structure, and the outside no teflon coating of needle point has conductive effect, and length is 2mm, and the needle body outside has teflon coating, has insulating effect, built -in radio frequency pjncture needle needle point pointed end surpasss the most advanced 5mm of external puncture trocar needle point, built -in radio frequency pjncture needle needle file bottom and external puncture trocar needle wing upper portion in close contact with prevent that built -in radio frequency pjncture needle is not hard up in puncture in -process and external puncture trocar position, external puncture trocar internal diameter is corresponding with built -in radio frequency pjncture needle external diameter, but external puncture trocar and built -in radio frequency pjncture needle are the split structures. The utility model discloses simple structure, low cost, facilitate the use, go low temperature plasma radio frequency and melt the art and establish the service aisle to provide the technique convenient for peripheral neuropathy aches the patient.

Description

A kind of plasma radiofrequency melts paracentesis trocar combination unit

Technical field

This utility model relates to medical instruments field, and particularly a kind of plasma radiofrequency melts paracentesis trocar combination unit.

Background technology

Peripheral neuralgia refers to the pain at the positions such as neuroganglion, nerve trunk, plexus nervorum and teleneuron except nervus centralis, clinical common trigeminal neuralgia, sphenopalatine neuralgia, neuralgia of greater occipital nerve, thoracic nerves pain, brachial plexus neuralgia, ulnar nerve pain, radial nerve pain, median nerve pain, sciatica, femoral neuralgia etc.

At present, peripheral nervous Radio frequency thermoset has been used successfully to peripheral neuralgia patient, and curative effect is better.

Radio frequency thermoset accurately exports ultra-high frequency wireless electric wave by particular radio-frequency heat setting puncture needle, target nerve tissue is made to produce localized hyperthermia, play thermocoagulation and damage neural effect, but its heat setting temperature up to 90-100 °, can have the medical-risk of the contiguous nervous tissue of damage.

RF coagulation puncture needle needle point has the naked end of 5mm, while guaranteeing that its heat setting scope of damaging reaches 5mm deeply, may cause latent lesion to contiguous nervous tissue.

Low-temperature plasma radio-frequency technique produces plasma with 100 ~ 120kHz ULF radio-frequency (RF) energy exciting media (NaCl), and the energy produced by radio-frequency technique interrupts molecular link, and protein and other By Direct Pyrolysis is become O ₂, CO ₂, N ₂deng gas, realize melting damage to nervous tissue.

Low-temperature plasma radio-frequency technique is compared with RF coagulation technology, and operating temperature is between 40-70 °, and hot injury's scope is little.Research shows, the temperature outside distance low-temperature plasma cutter head 1mm can drop to less than 20 °, and outside 5mm, temperature can be reduced to 0 °, therefore extremely low to the thermal injury risk of contiguous nervous tissue.

At present, RF coagulation electrode completes peripheral nervous Radio frequency thermoset by RF coagulation puncture needle.RF coagulation puncture needle has puncture and therapeutical effect simultaneously.In Trigeminal Semilunar Ganglion Radio frequency thermoset, after RF coagulation electrode puts into puncture needle, the position of two kinds of pattern determination puncture needle distance between two tips target nerves is stimulated by sensory nerve stimulation and nervus motorius, because the naked end of puncture needle needle point is exactly working end, once after puncture needle tip position determines, heat setting pattern row peripheral nervous joint Radio frequency thermoset can be opened.

But in peripheral nervous plasma radiofrequency ablation at low temperature, low-temperature plasma cutter head does not have puncture function, first must puncture and successfully set up service aisle, by puncture needle is inner, plasma cutter head be placed the neural position of target, complete operative treatment.After service aisle establishes, need further low-temperature plasma cutter head to be stretched out outer at least about the 5mm of puncture needle needle point, guarantee that low-temperature plasma cutter head is exposed to outside service aisle completely and is placed in the neural position of target, but because low-temperature plasma cutter head does not have nerve electric stimulation function, cannot by sensory nerve stimulation and nervus motorius stimulus modelity localize neural position, cause target nerve positioning difficulty, limit its clinical practice.

Utility model content

The purpose of this utility model is to make up the deficiencies in the prior art, utilize the radio frequency puncture needle and the work characteristics in conjunction with low-temperature plasma cutter head with nerve electric stimulation function, design a kind of plasma radiofrequency and melt paracentesis trocar combination unit, structure is simple, with low cost, easy to use, and setting up service aisle for peripheral neuralgia patient row plasma radiofrequency ablation at low temperature provides technology convenient.

The technical solution of the utility model is: a kind of plasma radiofrequency melts paracentesis trocar combination unit, structure comprises external paracentesis trocar and built-in radio frequency puncture needle, described external paracentesis trocar is by needle point, needle body and the pin wing are formed, needle point and needle body are stainless steel structure, outside has teflon coatings, there is insulating effect, described built-in radio frequency puncture needle is by needle point, needle body, needle stand and nook closing member are formed, needle point and needle body are stainless steel structure, needle point is outside without teflon coatings, there is electric action, length is 2mm, needle body outside has teflon coatings, there is insulating effect, described built-in radio frequency puncture needle needle point tip exceeds the most advanced and sophisticated 5mm of external paracentesis trocar needle point, with external paracentesis trocar pin wing top close contact bottom described built-in radio frequency puncture needle needle stand, prevent built-in radio frequency puncture needle from loosening with external paracentesis trocar position in piercing process, described external paracentesis trocar internal diameter is corresponding with built-in radio frequency puncture needle external diameter, external paracentesis trocar and built-in radio frequency puncture needle are detachable structures.

During use, patient locates peripheral nervous puncture direction and skin penetrating point under X-ray or CT guides, after labelling skin penetrating point, first built-in radio frequency puncture needle needle point is retreated to external paracentesis trocar inner, then external paracentesis trocar needle point is entered skin inside through puncture pricking method, after external paracentesis trocar being continued to advance 1-2cm along puncture direction, built-in radio frequency puncture needle is pushed into foremost along external paracentesis trocar inside, until contact with each other with external paracentesis trocar pin wing top bottom built-in radio frequency puncture needle needle stand, now built-in radio frequency puncture needle needle point tip exceeds the most advanced and sophisticated 5mm of external paracentesis trocar needle point, external paracentesis trocar and built-in radio frequency puncture needle are advanced along puncture direction afterwards simultaneously, in piercing process, along puncture direction, pressure is applied to built-in radio frequency puncture needle base, ensure bottom built-in radio frequency puncture needle needle stand with external paracentesis trocar pin wing top close contact, built-in radio frequency puncture needle in piercing process is prevented to be separated with external paracentesis trocar, after built-in radio frequency puncture needle needle point is close to the neural position of target, stop inserting needle, extract built-in radio frequency puncture needle nook closing member, put into radio-frequency electrode, connect radio frequency instrument, open sensory nerve stimulation and nervus motorius stimulus modelity, after determining built-in radio frequency puncture needle needle point to target nerve, built-in radio frequency puncture needle is extracted together with radio-frequency electrode, the external paracentesis trocar inside of tailing edge insert low-temperature plasma cutter head, placed-depth is the total length of built-in radio frequency puncture needle needle point and needle body, now low-temperature plasma cutter head tip exceeds the most advanced and sophisticated 5mm of external trocar needle point, can ensure that low-temperature plasma cutter head is exposed to external paracentesis trocar needle point outside completely and is positioned at the neural position of target, after low-temperature plasma cutter head connects radiofrequency ablation system afterwards, open ablation mode to treat.

This utility model compared with prior art tool has the following advantages:

This utility model structure is simple, with low cost, convenient and practical, setting up service aisle for peripheral neuralgia patient row plasma radiofrequency ablation at low temperature provides technology convenient, in enforcement peripheral nervous plasma radiofrequency ablation at low temperature process, can effectively avoid, to the thermal injury risk of contiguous nervous tissue, improving patient satisfaction.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model:

In figure, Reference numeral is: the external paracentesis trocar of 1-, the built-in radio frequency puncture needle of 2-, 11-needle point, 12-needle body, the 13-pin wing, 21-needle point, 22-needle body, 23-needle stand, and 24-nook closing member, 241-nook closing member body, bottom 242-nook closing member

Detailed description of the invention

As shown in Figure 1, a kind of plasma radiofrequency melts paracentesis trocar combination unit, comprise external paracentesis trocar 1 and built-in radio frequency puncture needle 2, described external paracentesis trocar 1 is by needle point 11, needle body 12 and the pin wing 13 are formed, needle point 11 and needle body 12 are stainless steel structure, outside has teflon coatings, there is insulating effect, described built-in radio frequency puncture needle 2 is by needle point 21, needle body 22, needle stand 23 and nook closing member 24 are formed, needle point 21 and needle body 22 are stainless steel structure, needle point 21 is outside without teflon coatings, there is electric action, length is 2mm, needle body 22 outside has teflon coatings, there is insulating effect, described built-in radio frequency puncture needle 2 needle point 21 tip exceeds the most advanced and sophisticated 5mm of external paracentesis trocar 1 needle point 11, with the external paracentesis trocar 1 pin wing 13 top close contact bottom described built-in radio frequency puncture needle 2 needle stand 23, prevent built-in radio frequency puncture needle 2 from loosening with external paracentesis trocar 1 position in piercing process, described external paracentesis trocar 1 internal diameter is corresponding with built-in radio frequency puncture needle 2 external diameter, external paracentesis trocar 1 and built-in radio frequency puncture needle 2 are detachable structures.

During use, patient locates peripheral nervous puncture direction and skin penetrating point under X-ray or CT guides, after labelling skin penetrating point, first built-in radio frequency puncture needle 2 needle point 21 is retreated to external paracentesis trocar 1 inner, then external paracentesis trocar 1 needle point 11 is entered skin inside through puncture pricking method, after continuing to advance 1-2cm along the external paracentesis trocar 1 of puncture steering handle, built-in radio frequency puncture needle 2 is pushed into foremost along external paracentesis trocar 1 inside, until contact with each other with the external paracentesis trocar 1 pin wing 13 top bottom built-in radio frequency puncture needle 2 needle stand 23, now built-in radio frequency puncture needle 2 needle point 21 tip exceeds the most advanced and sophisticated 5mm of external paracentesis trocar 1 needle point 11, external paracentesis trocar 1 and built-in radio frequency puncture needle 2 are advanced along puncture direction afterwards simultaneously, in piercing process, along puncture direction, pressure is applied to built-in radio frequency puncture needle 2 base 23, ensure bottom built-in radio frequency puncture needle 2 needle stand 23 with the external paracentesis trocar 1 pin wing 13 top close contact, built-in radio frequency puncture needle 2 in piercing process is prevented to be separated with external paracentesis trocar 1, after built-in radio frequency puncture needle 2 needle point 21 is close to the neural position of target, stop inserting needle, extract built-in radio frequency puncture needle 2 nook closing member 24, put into radio-frequency electrode, connect radio frequency instrument, open sensory nerve stimulation and nervus motorius stimulus modelity, after determining built-in radio frequency puncture needle 2 needle point 21 to target nerve, built-in radio frequency puncture needle 2 is extracted together with radio-frequency electrode, tailing edge external paracentesis trocar 1 inside insert low-temperature plasma cutter head, placed-depth is the total length of built-in radio frequency puncture needle 2 needle point 21 and needle body 22, now low-temperature plasma cutter head tip exceeds the most advanced and sophisticated 5mm of the external trocar 1 needle point 11, can ensure that low-temperature plasma cutter head is exposed to external paracentesis trocar 1 needle point 11 outside completely and is positioned at the neural position of target, after low-temperature plasma cutter head connects radiofrequency ablation system afterwards, open ablation mode to treat.

Be noted that for those skilled in the art, under the prerequisite not departing from this utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (1)

1. a plasma radiofrequency melts paracentesis trocar combination unit, it is characterized in that: comprise external paracentesis trocar and built-in radio frequency puncture needle, described external paracentesis trocar is by needle point, needle body and the pin wing are formed, needle point and needle body are stainless steel structure, outside has teflon coatings, there is insulating effect, described built-in radio frequency puncture needle is by needle point, needle body, needle stand and nook closing member are formed, needle point and needle body are stainless steel structure, needle point is outside without teflon coatings, there is electric action, length is 2mm, needle body outside has teflon coatings, there is insulating effect, described built-in radio frequency puncture needle needle point tip exceeds the most advanced and sophisticated 5mm of external paracentesis trocar needle point, with external paracentesis trocar pin wing top close contact bottom described built-in radio frequency puncture needle needle stand, prevent built-in radio frequency puncture needle from loosening with external paracentesis trocar position in piercing process, described external paracentesis trocar internal diameter is corresponding with built-in radio frequency puncture needle external diameter, external paracentesis trocar and built-in radio frequency puncture needle are detachable structures.