Unique low temperature plasma real-time tissue ablation technology
The new generation plasma surgery system adopts exclusive patented technology to form a low-temperature plasma thin layer visible to the naked eye at the front end of the cutter head. The charged particles in this thin layer have enough kinetic energy to break the peptide bonds of macromolecules in tissues, so that they can be decomposed into low molecular weight molecules and atoms (such as oxygen and nitrogen) and discharged from the body through puncture channels, thus producing real-time, efficient and accurate cutting and ablation effects, and only generating a temperature of 53C in the process.
When hemostasis and tissue contraction are needed, the host computer accurately generates an appropriate amount of heat energy according to the needs of doctors, so as to achieve the effects of hemostasis and tissue contraction and ensure that the activity of surrounding tissues is not destroyed.
Low temperature RF plasma surgery has been approved by FDA for spinal surgery, otolaryngology, arthroscopy, general surgery, cosmetic surgery, neurosurgery, anesthesia and pain, and its excellent characteristics have been well received by experts and patients at home and abroad.
Advantages of plasma surgery system:
One,
Use patented bipolar radio frequency (RF) technology;
Forming an ion rarefied gas layer-plasma through electrolyte;
After ions are accelerated by an electric field, they transfer energy to tissues.
At low temperature, the molecular bonds on the tissue surface are opened, and the tissue decomposes to form a cutting effect.
The electric field accelerated plasma decomposes basic molecules and low-molecular-weight gases before charged particles decompose tissues—typical macro-molecular (protein) and after charged particles decompose tissues.
The tissue surface in contact with the cutter head decomposes into simple carbohydrates and oxides at the molecular level and falls off;
Different from other electrosurgical effects, the tissue volume decreases immediately.
The cut temperature is 40-70 DEG C.
The drilling temperature is about 52 C. The hemostasis temperature is similar to that during cutting.
The wound surface is healthy.
Deep tissue health
Postoperative pain is mild.
Recover quickly
Unilite adopts bipolar plasma technology, and no electric field returns to the electrode plate.
The electric field only exists between the electrodes and does not enter the patient's body, and the energy indirectly acts on the tissue surface.
The electric field is completely under the supervision of the doctor.
Second, the safety of the nervous system:
. The intensity of molecular lipid bonds in nervous system: 8 ev;
Molecular bond strength of connective tissue: 3-4 eV.
At low temperature, the working energy of charged particles in the ionic layer is 3-4 eV, which does not damage the nervous system.
Cryogenic hemostasis:
The hemostatic temperature is low;
Sub-plasma is formed at low energy level to stop bleeding.
It can automatically switch to hemostasis mode.
Composition of combined plasma surgery system
control system
. control pedal
Surgical electrode
1, host
The energy control system is used to generate 100K Hz RF energy and control the plasma electrode.
2. Control steps
Cutting hemostasis to regulate energy
3, electricity for surgery
Punching electrode scraping electrode cutting electrode
4.E 102-55 Punching is used for
Snoring; Obstructive sleep apnea syndrome (soft palate, tongue root and tonsil)
5.E 10 1-45 Punching electricity
Can be used for treating hyperosteogeny, turbinate hypertrophy, snoring and obstructive sleep apnea syndrome (soft palate and tonsils).
6. Tunnel forming (stamping) electrode junction
7. Cutting electrodes are used to:
Head and neck surgery for snoring tonsil hypertrophy UPPP tumor resection
8, plasma cutting knife knot
9, scraping pulp
10, application of plasma surgery
Submucosal perforation
-Soft palate, for snoring.
The turbinate, turbinate hypertrophy.
—Tongue root, treating obstructive sleep apnea syndrome.
Tissue excision
—UPPP
-tonsil-tumor, polyp and hyperplasia tissue resection, etc.
Unit plasma surgery system
1, hand surgery room hand
2. Outpatient surgery
Examples of surgery include tissue volume reduction, excision, stripping and plastic surgery.
Plasma tissue volume reduction-rhinoplasty
Punching method
No scab
—Reduce the volume immediately.
-No risk of damage to the turbinate.
-We can do it in the clinic.
Local anesthesia can be used.
Surface excision
—— Reduce heat damage >> Relieve pain
Plasma volume reduction drilling
Excision stab wound
Radiofrequency volume elimination ablation …
Pull out the knife in the circle by stopping bleeding.
After punching ...
Plasma volume reduction drilling
Plasma tissue volume reduction-plasma channel soft palate plasty
Advantages of treating snoring
Punching method
-Fast (10 second instead of a few minutes)
—Reduce the volume immediately.
PAUP
Simple and painless
* Local anesthesia was used.
Play according to the marks on the soft palate
The circle was placed first.
The hole edge is neat and the tissue is healthy.
After surgery
Plasma tissue resection -UPPP uvulopalatopharyngoplasty
Advantages of UPPP
Improve operation efficiency and reduce mucosal burn.
Relieve edema
The wound is healthy and there is no burn.
Plasma tissue resection-tonsillectomy
Cutting electrode for tonsillectomy
Branching arteries with cutting electrodes
High cutting efficiency, no damage to the lower tissue.
Excised wound
Plasma tissue resection-tonsillectomy
Partial tonsillectomy
Plasma resection
anesthetize
Use EVacTM to "brush" tonsil tissue layer by layer.
The detached tissue will be sucked out from the suction port of EVacTM.
Plasma ablation junction
No bleeding, no pain, quick recovery, and no influence on normal diet.
Used in otorhinolaryngology head and neck surgery;
Nasal concha reduction, soft palate incision, soft palate window closing and contraction: soft palate drilling, uvula straight and short drilling, velopharyngeal arch drilling to reduce volume: tonsil drilling to reduce volume, tongue root drilling to reduce volume, nasal polyps ablation, hypertrophy turbinate reduction, auricle cyst radical operation, soft palate volume reduction and tension, tongue root reduction and hypertrophy turbinate reduction.
Used in spinal surgery:
1. Safe and minimally invasive plasma disc nucleus pulposus ablation.
This is an accurate and controllable method for decompression of intervertebral disc by plasma low temperature ablation and precise thermal contraction technology. This new minimally invasive technique is used to treat the symptoms of nerve stimulation caused by the increase of intervertebral disc pressure. In the process of plasma nucleoplasty, low temperature plasma ablation technology is used to vaporize part of nucleus pulposus tissue of intervertebral disc in real time to reduce the volume of nucleus pulposus. Then, the precise thermal shrinkage technology is used to heat the nucleus pulposus tissue contacted by the cutter head to about 70℃, so as to reduce its volume to achieve the therapeutic purpose. Plasma nucleoplasty enters the annulus fibrosus through a puncture needle with a diameter of about 1mm, which affects the annulus fibrosus and its surroundings.
There is no adverse effect on the stability of the organization; The traditional technology needs to cut the fiber ring, which will inevitably cause further damage to the existing defects. Therefore, plasma nucleoplasty has the characteristics of safety, minimally invasive and extremely simple operation, which is incomparable to traditional technology.
Compared with traditional microscopic nucleus pulposus removal, plasma minimally invasive nucleus pulposus ablation has the following advantages:
1, less trauma, maximum protection of the fiber ring wall.
2. Tissue can be effectively removed.
3. The change of intervertebral disc recession after operation is small.
4. It has little effect on the stability of spine.
5. The rate of disc herniation is low.
6. Little interference to nerve roots.
7. Short operation time
8. Less complications
Single channel ablation of human specimens
1, tissue ablation was obvious.
2. The thermal damage of surrounding tissues is minimal.
3, fiber ring integrity
Disc-derived diseases are common and frequently-occurring diseases, such as common disc herniation and disc degenerative diseases. The traditional treatment of disc herniation is discectomy or nucleus pulposus removal or decompression, and the current curative effect is only 60 ~ 70%; Scholars at home and abroad have found that the biomechanical dysfunction of spine caused by intervertebral disc destruction is an important reason affecting the curative effect. The similarity of the above treatment methods is at the expense of the destruction of intervertebral disc, but the intervertebral disc plays a decisive role in the stability and normal physiological activities of the spine. Therefore, how to reconstruct the function of lumbar intervertebral disc after pathological changes is a difficult problem in the medical field and a new trend in the treatment of intervertebral disc diseases.
Intervertebral disc consists of nucleus pulposus in the middle and fibrous ring in the periphery. Optical fiber ring passing through
Sharpsky fibers are connected with the vertebral nuclei at both ends of the vertebral body, and each fiber ring is formed by concentric arrangement of 10- 12 layers of collagen fibers. There are fewer layers of collagen fibers in the posterior part of intervertebral disc, and the fibrous ring is relatively thin (Bogduk,1997; Moore, 1992), the annulus fibrosus, especially the outer side of the annulus fibrosus 1/3, has abundant innervation. With the increase of age, tiny cracks (Haughton, 1997) can appear in the fiber ring. Under the sudden external force, it can lead to the tearing of the annulus fibrosus, chronic injury of the annulus fibrosus, chemical inflammatory stimulation, proliferation of nerve endings in the annulus fibrosus, increased sensitivity of nociceptors and chronic pain (Coppes, 1997). Histochemical studies showed that the number of nerve endings containing substance P in the intervertebral disc of patients with chronic low back pain was significantly higher than that of normal people (Siddall, 1997).
Plasma cryoablation is an effective method for minimally invasive interventional treatment of the above pain. Doctors use temperature-controlled low-temperature radio frequency heat waves to treat the damaged annulus fibrosus, so that the cracks in the annulus fibrosus wall are narrowed and closed, and the protrusion and bulging of the intervertebral disc are reduced.
The mechanism of low temperature ablation is that heating changes the structure of collagen fibers. Hydrogen bonds in collagen fibers are very sensitive to heat. When heated, hydrogen bonds break, which leads to the contraction of collagen fibers. When the temperature in the intervertebral disc reaches 65 degrees, collagen fibers can be collected to 35%. The contraction of annulus fibrosus can strengthen the degenerated intervertebral disc structure and repair the torn intervertebral disc. Another mechanism of IDET is that heating destroys highly sensitive nerve receptors in intervertebral discs. Heating denervation has been widely used to treat various central and peripheral pains. After heating the intervertebral disc, the number of harmful nerve endings decreases, which can achieve the purpose of relieving pain.
Principle of low temperature radiofrequency thermocoagulation for pain treatment
The low-temperature plasma RF instrument emits high-frequency RF ion flow, which makes the ion movement in the target tissue generate heat through friction and damage the target tissue and nerve through thermal coagulation. Highly selective destruction of the conduction branches of pain nerve fibers, blocking the conduction of pain signals to the upper nerve, and destroying the pain conduction pathway, so that it can not be introduced into the brain and can not produce pain feelings and experiences, thus achieving the purpose of controlling pain.
Nerve fibers that manage pain conduction in human body belong to unmyelinated fine fibers (Aδ, C) with a fine diameter (2 ~ 4 microns), which usually denature at 70℃ ~ 75℃. The nerve fibers that manage motor and tactile conduction belong to myelinated crude fibers (Aβ), which have a large diameter (8 ~ 14μ m) and can tolerate high temperatures.
Radio frequency thermocoagulation technology skillfully uses the temperature tolerance difference of different nerve fibers to selectively block Aδ and C fibers that transmit pain, thus achieving the purpose of relieving pain and preserving local touch.
The main advantage of pulsed RF is that it uses pulsed current and its control voltage.