CN2579359Y - Cyclic seam throttling refrigerating probe for cooling human local tissue - Google Patents
Cyclic seam throttling refrigerating probe for cooling human local tissue Download PDFInfo
- Publication number
- CN2579359Y CN2579359Y CN 02285407 CN02285407U CN2579359Y CN 2579359 Y CN2579359 Y CN 2579359Y CN 02285407 CN02285407 CN 02285407 CN 02285407 U CN02285407 U CN 02285407U CN 2579359 Y CN2579359 Y CN 2579359Y
- Authority
- CN
- China
- Prior art keywords
- probe
- local tissue
- cool
- return duct
- circumferential weld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000523 sample Substances 0.000 title claims abstract description 82
- 125000004122 cyclic group Chemical group 0.000 title abstract 2
- 238000001816 cooling Methods 0.000 title description 5
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims description 33
- 238000009413 insulation Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- 239000004952 Polyamide Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims 1
- 208000014674 injury Diseases 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000001225 therapeutic effect Effects 0.000 abstract 1
- 230000008733 trauma Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 45
- 229910052757 nitrogen Inorganic materials 0.000 description 22
- 239000007788 liquid Substances 0.000 description 20
- 210000001519 tissue Anatomy 0.000 description 13
- 210000004027 cell Anatomy 0.000 description 11
- 230000008014 freezing Effects 0.000 description 9
- 238000007710 freezing Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000002681 cryosurgery Methods 0.000 description 4
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 210000004881 tumor cell Anatomy 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000030833 cell death Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000002324 minimally invasive surgery Methods 0.000 description 2
- 230000017074 necrotic cell death Effects 0.000 description 2
- 230000001537 neural effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000002874 Acne Vulgaris Diseases 0.000 description 1
- 208000009084 Cold Injury Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000009161 Espostoa lanata Nutrition 0.000 description 1
- 240000001624 Espostoa lanata Species 0.000 description 1
- 206010027145 Melanocytic naevus Diseases 0.000 description 1
- 208000003351 Melanosis Diseases 0.000 description 1
- 208000007256 Nevus Diseases 0.000 description 1
- 206010067268 Post procedural infection Diseases 0.000 description 1
- 208000000260 Warts Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000000589 cicatrix Anatomy 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 201000010153 skin papilloma Diseases 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model relates to a cyclic seam throttling refrigerating probe. A connecting joint communicated with a high-pressure air source is led out from a main frame of a refrigerating operation therapeutic machine, enters an inner chamber of a handle through a connecting duct, and is communicated with a probe which is communicated with the handle. The probe comprises a probe rod, a return pipe and a heat insulating sleeve pipe which are positioned in the probe rod and are orderly arranged outwards from a shaft center. The length of the heat insulating sleeve pipe is shorter than the return pipe; an annular seam playing the double action of high-pressure air throttling and air heat return is formed between the return pipe and the heat insulating sleeve pipe. A heat exchanging annular seam increasing heat exchanging effects by fast flow of air currents is formed between the front end of the return pipe and the probe rod. A cylinder II is formed between the head of the probe and the front end of the return pipe. The front end of the return pipe can also be provided with a galvanic couple type temperature sensor connected with a temperature meter. The front end of the cylinder II is provided with a finned heat regenerator. The head of the probe forms a conic needle point shape, a bevelling needle point shape or a round head needle point shape. The utility model has the advantages of small diameter and trauma, simple structure, easy manufacture, low price, etc.
Description
Invention field
This utility model belongs to and is used to cool off the body local tissue in the surgical operation, to reach the surgical operating instrument of destruction cancerous cell or benign tumor cells, neural temporary interruption, be used to destroy the circumferential weld throttle type cryoprobe that is used to cool off the body local tissue of cancerous cell or benign tumor cells in particularly a kind of surgical operation.
Background technology
By frozen cell active mass's structure is carried out destructive surgical operation and be normally used for destroying cancerous cell and benign tumor cells.Cryosurgery also is used to neural temporary interruption and operates on operation back aim of alleviating pain in the regular hour to reach.With respect to operating on operation, the cryosurgery operation has many advantages: quick, almost painless, need not local anesthesia, and the risk of no postoperative infection stays cicatrix hardly.
Cause the mechanism of cytoclasis to be by cryosurgery:
If 1 tissue is slowly cooled, cell can lose moisture content in a large number, makes harmful electrolyte concentration raising in the cell, causes tissue necrosis;
2, fruit tissue is cooled off fast, will form many and small ice crystal, makes the ice crystal refinement, and this moment, cell was not fragile.But in melting process, if ice to the phase transformation of water too soon, all ice crystals are by brief melting.If thawing speed lowers, the ice crystal that takes place to have melted will be cooled off its tissue on every side, thereby make some water form ice once more, recrystallization process will make some ice crystals be lengthened out and form the ice cutting edge of a knife or a sword, ice cutting edge of a knife or a sword thorn breaking cell wall causes cell death, thereby makes tissue necrosis.
When 3, metabolism continues, the supply of ice block cell nutrition and the processing of metabolite, cell death just takes place.
Surgical operation can use refrigerated source such as dry ice, liquid nitrogen to directly apply to pending tissue.The simplest method is to dip in liquid refrigerant with cotton swab, directly contacts into treatment sites with the cotton balls that soaks into cold-producing medium then, perhaps cold-producing medium is imported the metal catheter of a sealing, implements cryosurgery by metal catheter ejector refrigeration agent to application site.Yet, this method has many places of not complying with one's wishes: (1) is directly used cold-producing medium to cause and is organized quick freezing with the method for dipping in or spraying, and causes the ice crystal refinement rather than forms big ice crystal, cell is not easy dehydration, has reduced to destroy by high electrolysis concentration the generation of cell.After cold-producing medium left, heat froze organized delivery to quilt again in health, caused melting relatively fast, should not form the ice cutting edge of a knife or a sword, thereby had reduced the cell degree that wrecks that makes.Directly using cold-producing medium is the size of uncontrollable freezing area in the greatest problem of local organization, uncontrollable freezing degree, cooling time and heating-up time.
Cooper at first used liquid nitrogen as low-temperature receiver in 1961, adopted the metallic conduit of liquid nitrogen by sealing, flow to the tip of pipe under certain pressure, by the vaporization cooling effect of liquid nitrogen the local temperature of enduring cold was fallen and reach about-190 ℃.He has treated 100 routine parkinson with this device.
The operating theater instruments of using liquid nitrogen to make as low-temperature receiver is widely used.Particularly in the department of dermatologry for the treatment of nevus class, acne, freckle, wart etc.Yet the liquid nitrogen hypothermy unit tool in many aspects can not be satisfactory.At first, because the liquid nitrogen freezing probe is made of three concentric tubees, the center is that liquid nitrogen is input into pipe, and the centre is the gas concentric pipe ring clevis layer that backflows, and most external is a vacuum heat-preserving concentric tube annular gap.Like this, liquid nitrogen is only applicable to big cryoprobe, and for less freezing head, liquid nitrogen serious problems can occur in the most advanced and sophisticated evaporation of freezing head: owing to return from the tip, discharge nitrogen all around makes the part liquid nitrogen heating, can make the liquid nitrogen vaporization in the supply pipe.This is that liquid nitrogen partly evaporates formation gas in the supply pipe and make because the nitrogen of discharging than the liquid nitrogen temperature height in the supply pipe, has formed counter current heat exchange, hinders the nitrogen bubble that liquid nitrogen flows to the tip and form.Increasing liquid nitrogen pressure or reduction liquid nitrogen temperature can make liquid nitrogen supercool, thereby address this problem.But this makes system more complicated again; Secondly, liquid nitrogen uses inconvenient, the equipment complicated operation.
As coolant, rely on Jiao Er-refrigerating method of Thomson throttle effect to be subject to people's attention and to welcome with gas.Can produce refrigeration effect after gases such as high pressure oxygen, nitrogen and carbon dioxide under the room temperature throttling pore of flowing through, gas expansion and be called Jiao Er-Thomson throttle effect.Patent GB-2,337,000 utilizes this principle and the cold therapy machine invented, its structure is that gases at high pressure flow through from the tubule of innermost layer, head at probe has a throttling pore, gas reduces by throttle temperature, yet the shank of this cryoprobe is at low temperature state all, can not satisfy the requirement of some operation, particularly for the percutaneous cold therapy, except the needle point of cryoprobe, other parts of probe must the temperature remains within the normal range, otherwise, will cause the normal structure cold injury outside the operation application site.Longsworth has designed a serpentine pipe recuperative heat exchanger in cryoprobe in 1994, patent US-5,452,582, its structure is for as shown in Figure 6, one serpentine pipe is arranged in probe, and gases at high pressure are passed by in the pipe of serpentine pipe, become low-pressure low-temperature gas at end of probe gas after orifice restriction.Low-temp low-pressure gas skims over from the outside of serpentine pipe, thereby serpentine pipe becomes a recuperative heat exchanger, make reflux gas constantly heat up, and charge air flow can obtain pre-cooling effectively, thereby, make the temperature of probe along shank direction formation temperature gradient, the needle tip temperature at of probe is minimum, and probe is almost room temperature near the position of handle.Mikus etc. have further developed this invention, patent US-58000487, its structure is for as shown in Figure 7, they not only adopt finned serpentine pipe to increase heat exchange efficiency, and, also designed the heat-insulation layer of adiabator in the outside of heat exchanger, thereby make probe shank outside near room temperature, but this finned helix tube type probe, because built-in spiral tube exchanger, probe diameter can not be done very for a short time, does not satisfy the demand (freezing minimally invasive surgery needs diameter is 2mm or littler probe) of freezing minimally invasive surgery.
Summary of the invention
The purpose of this utility model is to overcome the existing defective of restriction of said structure complexity and serpentine pipe diameter, and the diameter that provides a kind of cooling to freeze operation usefulness is littler, the circumferential weld throttle type cryoprobe that the cryoinstrument one of effect is used to cool off the body local tissue is hindered by the Wicresoft that has that wound is littler, hinder cryosurgical requirement thereby satisfy Wicresoft, and its structure simple more, make easily, price is cheaper.
The technical solution of the utility model is as follows:
The circumferential weld throttle type cryoprobe that is used to cool off the body local tissue that this utility model provides, comprise jointing 111, connecting duct 222, handle 333 and probe 444, the jointing 111 that is communicated with high-pressure air source is drawn from the main frame of cryosurgical treatment machine, enter inner chamber in the handle 333 by connecting duct 222, and be connected with the probe 444 that is connected with handle 333, it is characterized in that, described probe 444 comprises probe rod 777, be positioned within the probe rod 777 and and locate outwards concentric successively return duct 999 and the insulation casing of placing 888 by the axle center of probe rod 777, the length that is shorter in length than return duct 999 of insulation casing 888, between insulation casing 888 and return duct 999, form the narrow annular channel 771 of the dual function that plays gases at high pressure throttling and gas backheat, form between return duct 999 leading sections and the probe rod 777 air-flow is flowed therein fast to strengthen the heat exchange narrow annular channel 772 of heat exchange effect, formation cylinder II in probe 444 heads and between return duct 999 leading sections; Also can further comprise the galvanic couple formula temperature sensor 122 that is installed on return duct 999 front end side wall, the lead 123 of galvanic couple formula temperature sensor 122 passes the inner chamber of return duct 999 and links to each other with thermometric instrument 125 through handle 333, connecting duct 222 and a threeway 124 successively; The front end of described cylinder II is equipped with finned regenerator 121, and its fin shape is thread-shaped or profile of tooth; Described probe 444 nose shapes are the taper tip-like, the shape tip-like of cutting sth. askew or knob shape tip-like; The probe rod 777 of described probe 444 is flexible reinforcement polyamide hose, and its diameter is between 1.2-5mm, and length is between 100-1500mm; The material of described insulation casing 888 is the low nonmetallic materials of thermal conductivity, plastics or the fiberglass low as thermal conductivity; The length of described heat exchange narrow annular channel 772 is between 3～30mm, and the gap is between 0.05-0.3mm; The length of described narrow annular channel 771 is that the gap is between 0.01-0.02mm between 100～1450mm; The material of described return duct 999 is the high metal material of thermal conductivity, as red copper or rustless steel.
During use, high-pressure air source is drawn from the main frame of cryosurgical treatment machine by jointing 111.Enter in the handle 333 through connecting duct 222 then, carry out in handle 333 after the source of the gas distribution, source of the gas flows to probe 444; In handle 333, distribute later source of the gas, flow to the narrow annular channel 771 that forms by insulation casing 888 and return duct 999; Because there is viscosity in gas, gas will form pressure differential when flowing between the import of slit and outlet, thereby the specific volume of gas will increase suddenly before and after slit, realize joule-Thomson throttle effect, reach the purpose that gas refrigeration is lowered the temperature.The space that cryogenic gas after expanding is surrounded between by probe rod 777, probe rod head 110 and return duct 999 is in the cylinder II cold to be passed to the probe rod head, return handle 333 from return duct 999 at last, with tailing edge connecting duct 222, return the main frame of cryosurgical treatment machine through distribution of air flow by jointing 111.
The heat transfer of slit recuperative heat exchanger is that the tube wall thermal conductance by return duct realizes.High temperature side: the incoming flow gas in the slit passes through the tube wall of the mode of gaseous exchange with the heat transferred return duct; Low temperature is surveyed: tube wall will pass to the interior reflux gas of pipe by the mode of convection current again by the heat that high temperature side passes over.The temperature of high temperature side reduces like this, and the temperature of low temperature side improves, thereby has realized backheat;
The effect of backheat mainly contains 3 points: the first reduces the temperature of incoming flow gas, thereby makes that the later temperature of expansion is lower; It two is to improve refrigerating capacity, reduces air consumption; It three is axial direction formation temperature gradients along shank: far away more from needle point, the temperature of shank is high more, and this will be very beneficial for the cryosurgical enforcement of percutaneous;
So the cryoprobe that this utility model provides has simple in structure, be easy to make, the diameter of probe can be done littler and also only end of probe be in low temperature state below 0 ℃, other positions of shank all are higher than 0 ℃, thereby realize that really probe is little, and operation Wicresoft hinders.
Description of drawings
Accompanying drawing 1 and accompanying drawing 2 are respectively structural representation of the present utility model;
Accompanying drawing 3 and accompanying drawing 4 are respectively the structural representation of probe 444;
Accompanying drawing 5-1, accompanying drawing 5-2 and accompanying drawing 5-3 are respectively the structural representation of difformity end of probe 110;
Accompanying drawing 6 is the structural representation of US 5,452,582 in the prior art;
Accompanying drawing 7 is the structural representation of US 5,800,488 in the prior art;
Wherein: jointing 111 connecting ducts 222 handles 333
Cylinder II galvanic couple formula temperature sensor 122
Finned regenerator 122 galvanic couple formula temperature sensor wires 123
The label of each parts is as follows in the accompanying drawing 6:
Cryogenic probe 10 thin metallic tubds 12 cold heads 14
Room temperature end 16 long plastic tube 18 heat exchangers 20
Gases at high pressure air inlet pipe 22 cold head territories 26 capillary tubies 28
Heat exchanger 33 temperature sensors 34 finned tubes 35
The label of each parts is as follows in the accompanying drawing 7:
High-pressure pipe 14 drainage tubes 19 heat exchangers 20
21 joules-Thomson of cooling fluid port of export nozzle, 22 expansion chambers 23
End plug 24 axles 25 gaps 26
Thermocouple 29
The specific embodiment
Further describe this utility model below in conjunction with drawings and Examples:
By Fig. 1-4 as can be known, the circumferential weld throttle type cryoprobe that is used to cool off the body local tissue that this utility model provides, comprise jointing 111, connecting duct 222, handle 333 and probe 444, the jointing 111 that is communicated with high-pressure air source is drawn from the main frame of cryosurgical treatment machine, enter inner chamber in the handle 333 by connecting duct 222, and be connected with the probe 444 that is connected with handle 333, it is characterized in that, described probe 444 comprises probe rod 777, be positioned within the probe rod 777 and and locate outwards concentric successively return duct 999 and the insulation casing of placing 888 by the axle center of probe rod 777, the length that is shorter in length than return duct 999 of insulation casing 888, between insulation casing 888 and return duct 999, form the narrow annular channel 771 of the dual function that plays gases at high pressure throttling and gas backheat, form between return duct 999 leading sections and the probe rod 777 air-flow is flowed therein fast to strengthen the heat exchange narrow annular channel 772 of heat exchange effect, formation cylinder II in probe 444 heads and between return duct 999 leading sections; Also can further comprise the galvanic couple formula temperature sensor 122 that is installed on return duct 999 front end side wall, the lead 123 of galvanic couple formula temperature sensor 122 passes the inner chamber of return duct 999 and links to each other with thermometric instrument 125 through handle 333, connecting duct 222 and a threeway 124 successively; The front end of described cylinder II is equipped with finned regenerator 121, and its fin shape is thread-shaped or profile of tooth; Described probe 444 nose shapes are the taper tip-like, the shape tip-like of cutting sth. askew or knob shape tip-like; The probe rod 777 of described probe 444 is flexible reinforcement polyamide hose, and its diameter is between 1.2-5mm, and length is between 100-1500mm; The material of described insulation casing 888 is the low nonmetallic materials of thermal conductivity, plastics or the fiberglass low as thermal conductivity; The length of described heat exchange narrow annular channel 772 is between 3～30mm, and the gap is between 0.05-0.3mm; The length of described narrow annular channel 771 is that the gap is between 0.01-0.02mm between 100～1450mm; The material of described return duct 999 is the high metal material of thermal conductivity, as red copper or rustless steel.
Shown in Fig. 5-1, Fig. 5-2, Fig. 5-3, the shape of end of probe 110 can be according to the tapered tip-like of purposes different designs, the shape tip-like of cutting sth. askew or knob shape tip-like.
As shown in Figure 4,, a finned heat exchanger 121 can be installed in cylinder II, to increase heat exchange area and increase degree of disturbing, to strengthen heat exchange for increasing the heat exchange effect.
As shown in Figure 4, can be in return duct a prefabricated thermocouple temperature sensor 122, the lead-in wire 123 of thermocouple temperature sensor 122 passes and links to each other with thermometric instrument 125 on the cold therapy machine through handle 333, connecting duct 222 and threeway 124 successively from the inner chamber of return duct 999.Temperature with gas in the measuring probe head 110.
As shown in Figure 2, cryoprobe bar 777 can be made flexible, for example adopts and strengthens polyamide hose as probe shank material.
At a probe rod diameter is among the embodiment of 2mm or 5mm, probe length 400mm (can do to such an extent that grow " can grow to 1500mm " as required, also can do shortly " can be as short as 100mm), probe rod is selected the 1Cr18Ni9Ti material for use; Insulation casing is selected the polytetrafluoroethylmaterial material of excellent heat insulating performance for use, wall thickness 0.3mm.The probe rod head 110 of cryoprobe is made the shape of the syringe needle of cutting sth. askew.
In another embodiment, the probe rod diameter is 1.2mm, probe length 260mm.Probe rod is selected the 1Cr18Ni9Ti material for use; Insulation casing is selected polytetrafluoroethylmaterial material for use, wall thickness 0.2mm; The probe rod head of cryoprobe is made the shape of tapered needle.
In one embodiment, the cryosurgical treatment machine adopts the high pressure argon as cold coal, by joule-Thomson throttling refrigeration, by the mode of slit backheat of the present utility model heat exchange, on the head of cryoprobe, can obtain-120 ℃ low temperature, and the temperature on the probe rod is higher than 0 ℃.
In another embodiment, the cryosurgical treatment machine adopts saturated carbon dioxide as cold coal, by joule-Thomson throttling refrigeration, can obtain-75 ℃ low temperature on the head of cryoprobe, and the temperature on the probe rod is higher than 0 ℃.
Claims (10)
1, a kind of circumferential weld throttle type cryoprobe that is used to cool off the body local tissue, comprise jointing (111), connecting duct (222), handle (333) and probe (444), the jointing (111) that is communicated with high-pressure air source is drawn from the main frame of cryosurgical treatment machine, enter the interior inner chamber of handle (333) by connecting duct (222), and with and the probe (444) that is connected of handle (333) be connected, it is characterized in that, described probe (444) comprises probe rod (777), be positioned within the probe rod (777) and and locate outwards concentric successively return duct (999) and the insulation casing of placing (888) by the axle center of probe rod (777), the length that is shorter in length than return duct (999) of insulation casing (888), between insulation casing (888) and return duct (999), form the narrow annular channel (771) of the dual function that plays gases at high pressure throttling and gas backheat, form between return duct (999) leading section and the probe rod (777) and make mobile fast therein the heat exchange narrow annular channel (772) of air-flow, in probe (444) head and between return duct (999) leading section, form cylinder (II) with enhancing heat exchange effect.
2, by the described circumferential weld throttle type cryoprobe that is used to cool off the body local tissue of claim 1, it is characterized in that, also comprise the galvanic couple formula temperature sensor (122) that is installed on return duct (999) front end side wall, its lead (123) passes the inner chamber of return duct (999) and passes through handle (333), connecting duct (222) and a threeway (124) successively and links to each other with thermometric instrument (125).
3, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that the front end of described cylinder (II) is equipped with finned regenerator (121), its fin shape is thread-shaped or profile of tooth.
By claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that 4, described probe (444) nose shape is the taper tip-like, the shape tip-like of cutting sth. askew or knob shape tip-like.
5, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that, the probe rod (777) of described probe (444) is flexible reinforcement polyamide hose, and its diameter is between 1.2-5mm, and length is between 100-1500mm.
6, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that the material of described insulation casing (888) is the low nonmetallic materials of thermal conductivity.
7, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that the material of described insulation casing (888) is low plastics of thermal conductivity or fiberglass.
8, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that the length of described heat exchange narrow annular channel (772) is that the gap is between 0.05-0.3mm between 3～30mm.
9, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that the material of described return duct (999) is the high metal material of thermal conductivity.
10, by claim 1 or the 2 described circumferential weld throttle type cryoprobes that are used to cool off the body local tissue, it is characterized in that the length of described narrow annular channel (771) is that the gap is between 0.01-0.2mm between 100～1450mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02285407 CN2579359Y (en) | 2002-09-03 | 2002-11-13 | Cyclic seam throttling refrigerating probe for cooling human local tissue |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02253445 | 2002-09-03 | ||
| CN022534458 | 2002-09-03 | ||
| CN 02285407 CN2579359Y (en) | 2002-09-03 | 2002-11-13 | Cyclic seam throttling refrigerating probe for cooling human local tissue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2579359Y true CN2579359Y (en) | 2003-10-15 |
Family
ID=34065112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02285407 Expired - Lifetime CN2579359Y (en) | 2002-09-03 | 2002-11-13 | Cyclic seam throttling refrigerating probe for cooling human local tissue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2579359Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408001C (en) * | 2005-04-14 | 2008-08-06 | 北京库蓝医疗设备有限公司 | Disposable freezing probe |
| CN101330880B (en) * | 2005-12-16 | 2011-04-20 | 爱尔伯电子医疗设备公司 | Cryosurgical device with a probe coupling formed from the socket and the plug of cryoprobes |
| CN102083381A (en) * | 2008-05-23 | 2011-06-01 | 爱尔伯电子医疗设备有限公司 | Cryosurgical instrument for obtaining a tissue sample, method for chilling a probe head of a cryosurgical probe |
| CN102151172A (en) * | 2011-04-13 | 2011-08-17 | 中国人民解放军第三○九医院 | Hyperelastic hose cryoprobe |
| CN109846543A (en) * | 2013-09-24 | 2019-06-07 | 艾达吉欧医疗公司 | Cryoablation conduit and correlation technique based on intravascular near critical fluids |
-
2002
- 2002-11-13 CN CN 02285407 patent/CN2579359Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408001C (en) * | 2005-04-14 | 2008-08-06 | 北京库蓝医疗设备有限公司 | Disposable freezing probe |
| CN101330880B (en) * | 2005-12-16 | 2011-04-20 | 爱尔伯电子医疗设备公司 | Cryosurgical device with a probe coupling formed from the socket and the plug of cryoprobes |
| CN102083381A (en) * | 2008-05-23 | 2011-06-01 | 爱尔伯电子医疗设备有限公司 | Cryosurgical instrument for obtaining a tissue sample, method for chilling a probe head of a cryosurgical probe |
| CN102151172A (en) * | 2011-04-13 | 2011-08-17 | 中国人民解放军第三○九医院 | Hyperelastic hose cryoprobe |
| CN109846543A (en) * | 2013-09-24 | 2019-06-07 | 艾达吉欧医疗公司 | Cryoablation conduit and correlation technique based on intravascular near critical fluids |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1212103C (en) | Circumferentia weld throttling type cryoprobe | |
| US5254116A (en) | Cryosurgical instrument with vent holes and method using same | |
| US5520682A (en) | Cryosurgical instrument with vent means and method using same | |
| US5452582A (en) | Cryo-probe | |
| CN203122580U (en) | Ultra-low temperature freezing probe head | |
| US9050072B2 (en) | Cryoprobe for low pressure systems | |
| CN101732090B (en) | Cryoablation system with precooling device and control method thereof | |
| US20080051776A1 (en) | Thin uninsulated cryoprobe and insulating probe introducer | |
| US20100256620A1 (en) | Thin flexible cryoprobe operated by krypton | |
| CN103189011A (en) | Cryoablation apparatus with enhanced heat exchange area and related method | |
| CN101522106A (en) | Cryogenic probe for treating enlarged volume of tissue | |
| CN209032618U (en) | A kind of tumour ablation needle and the Cryobiopsy probe with the ablation needle | |
| CN101292897A (en) | Cold and hot probe treatment system | |
| CN101396299A (en) | Dewar integrated low-temperature operation device coupled with celioscope | |
| CN1935096A (en) | Nitrogen precooled throttling tumour ultra low temperature therapeutical system | |
| WO2023083048A1 (en) | Cryoablation needle having j-t double-channel | |
| CN2579359Y (en) | Cyclic seam throttling refrigerating probe for cooling human local tissue | |
| CN1935097A (en) | Nitrogen precooled throttling tumour ultra low temperature therapeutical system | |
| WO2023083047A1 (en) | Cryoablation needle having j-t slot sleeve | |
| CN206044717U (en) | A kind of cryoprobe | |
| CN100361635C (en) | Pre cooling type refrigeration method and pre cooling type treatment device for curing tumour | |
| CN2726546Y (en) | Cryoprobe for target treatment for human tumor | |
| CN201085682Y (en) | Low-temperature precooling device of cold therapy instrument | |
| CN201631375U (en) | Precooling device for ultralow temperature cryotherapy system | |
| CN2734163Y (en) | Pre-cooling type device for treating tumor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING KULAN MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: KE GANG Effective date: 20040820 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040820 Address after: 100085, Beijing, Haidian District on the road No. 26, Zhongguancun venture building, room 318 Patentee after: Kulan Medical Appliances Co., Ltd., Beijing Address before: 100080, Beijing, Zhongguancun, Haidian District, north two, 11, building 204 Patentee before: Ke Gang |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20050727 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |