CN203122600U - High-performance water-cooling microwave ablation antenna - Google Patents
High-performance water-cooling microwave ablation antenna Download PDFInfo
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- CN203122600U CN203122600U CN 201320144929 CN201320144929U CN203122600U CN 203122600 U CN203122600 U CN 203122600U CN 201320144929 CN201320144929 CN 201320144929 CN 201320144929 U CN201320144929 U CN 201320144929U CN 203122600 U CN203122600 U CN 203122600U
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Abstract
A high-property water-cooling microwave ablation antenna comprises a radiating head, a medium pipe, a semi-steel coaxial cable, a needle bar and a metal outer guide sleeve mounted and sleeved at the tail part of the medium pipe; the semi-steel coaxial cable is connected with the radiating head after penetrating through the axial hole of the metal outer guide sleeve, the front end of the metal outer guide sleeve is sleeved and mounted on the medium pipe, the front end of the needle bar is sleeved and mounted at the excircle of the tail part of the outer guide sleeve, and the outer guide sleeve, an outer conductor of the semi-steel coaxial cable and the needle bar are in ohmic contact. The accuracy of the structure of the microwave ablation antenna is improved and the boundary conditions of a space electromagnetic source are enabled not to be unstable and unknown any more as the needle and the medium pipe are connected together by the metal outer guide sleeve and the outer guide sleeve, the outer conductor of the semi-steel coaxial cable and the needle bar are in ohmic contact. The properties and the main characteristic parameters of the high-performance water-cooling microwave ablation antenna tend to be consistent and have certainty, thus improving the stability, efficiency and the reliability of the ablation antenna.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments of microwave ablation tumor, belong to the medical microwave technical field.
Background technology
Entered since 21 century, the microwave ablation tumor has developed a kind of main means that become in the clinical cancer therapy rapidly, it can implement the original position deactivation to tumor under the guiding of modern images such as B ultrasonic or CT, and has Wicresoft, accurate, the efficient and little distinguishing feature that has no side effect.Because temperature height in fast, the tumor of microwave ablation tumor programming rate, ablation range are big, be subjected to carbonization and blood flow to influence outstanding advantages such as little, particularly to bringing into play more and more important effect in the entity tumor treatment greatly, the popularity rate of clinical practice is also more and more higher at entity tumor.
Along with constantly popularizing of microwave ablation tumor, clinical medicine is also more and more higher to the requirement of the performance of microwave ablation apparatus and quality.In existing microwave ablation operating theater instruments, exposed defective and the deficiency of some properties of product and quality aspect at present:
1 works as microwave source adopting under output high-power and the working condition of long period, exists head to come off and drainage.
The microwave ablation operating theater instruments that 2 same producers are same batch, under the microwave source output microwave power condition identical with the working time, the scale of construction size of ablated tumor is not quite similar.In other words, the shape of their microwave heating effect is not the same with size.
The existence of above-mentioned technical problem, the formulation that certainly will give therapeutic scheme, and the microwave ablation clinical operation causes puzzlement, and the curative effect of microwave ablation tumor is had a greatly reduced quality.Its analysis of causes is as follows:
When the different tumor of microwave ablation different organs, because the structure of its tissue, aspect and cell and the distribution situation etc. of blood flow is relatively more complicated on every side, make it reflection, refraction to microwave, and absorption of microwave etc. existed very big difference, particularly when serious carbonization or coking take place tissue, above-mentioned defective will be particularly outstanding.Wherein some situation also is the common problem that adopts the physical means ablation to run into clinically.
For the microwave ablation operating theater instruments, because it is the needle-like microwave antenna of a medical intervener soma, so it must at first possess structure and the characteristic of excellent microwave antenna, could reach the purpose of ablated tumor safely effectively.From objective angle, discuss and analyze its characteristic and be:
1 medical and clinical intervene operation, require the radially physical dimension of its apparatus should be as much as possible little, this makes the microwave ablation operating theater instruments be subjected to certain restriction at aspects such as structural design, mechanical strength and rigidity, brings certain degree of difficulty also for simultaneously processing and the manufacturing of its part and product.But as long as reasonable in design and technology is reliable, its product is can satisfy its clinical instructions for use fully, and the head that can solve its operating theater instruments fully comes off and solves the problem of leaking.
2 needle-like microwave ablation operating theater instruments are to belong to typical monopole antenna type.Be the terminal of microwave transmission line at the front end position of microwave ablation apparatus, be the opening position of coaxial cable inner and outer conductor, electromagnetic wave breaks away from field source from here, propagates in tissue (medium) with form of electromagnetic wave, also be referred to as radiation, the electromagnetic wave of common antenna is at spatial transmission.The rate of change that its electric field and magnetic field alternately excite (frequency) is very high, and the medical microwave operating frequency is that 2450MHz, 915MHz and 433.92MHz (annotate: 1MHz=1 * 10
6Cycle per second).So, melt the residing position of each part and the state at antenna front end position, planform and physical dimension etc., all will become the boundary condition that melts the aerial radiation field source, the power flux-density of irradiation of electromagnetic waves and radiation all directions will directly be influenced, influence electromagnetic wave propagation conditions and state in the tumor tissues medium, affect microwave energy effect tumor tissues medium and be transformed into heat and the intensification result, namely show as form and the scale of construction of ablated tumor.Therefore, when in the structural design and manufacturing process at microwave ablation antenna front end position, the details of having ignored above-mentioned accuracy has been ignored issuable variables, or inconsiderate close, will make and melt the antenna performance instability, cause strong uncertain of its external electromagnetic field, make the electromagnetic field distribution parameter at its front end position inconsistent, its result will cause microwave ablation kitchen range (heat effect scope) inconsistent, be the inconsistent of the form of ablated tumor and the scale of construction, will differ greatly.
Summary of the invention
The technical problem to be solved in the present invention is: overcome key technical problem and the mass defect of above-mentioned existing product, propose a kind of high-performance water-cooled microwave ablation antenna.
High-performance water-cooled microwave ablation antenna of the present invention, comprise: radiation head, medium tube, half firm coaxial cable, shank, described medium tube is assemblied on the afterbody cylinder of radiation head, described half firm inner conductor has been packed into, and radiation head afterbody cylinder blind hole is interior also fixes, it is characterized in that: comprise that also encapsulation is at the metal outer bush of medium tube afterbody, described half just coaxial cable pass the back in the axle center hole of metal outer bush and be connected with radiation head, metal outer bush front end sleeve is contained on the medium tube, the shank front end sleeve is contained on the outer bush afterbody cylindrical, and described outer bush and half is the outer conductor of coaxial cable just, shank is Ohmic contact.
The present invention is connected by metal outer bush ohm with the outer conductor of half firm coaxial cable, make that originally melting dwi hastasana becomes relatively uniform and accurate structure, in other words, make that originally melting antenna has possessed the boundary condition that geometry is determined relatively, then be conducive to find the solution the electromagnetic field distribution that field source produces at its surrounding space on the antenna, and then be conducive to find the solution the problem of radiation field of aerial, namely be conducive to solve the problem of microwave ablation kitchen range (heat effect scope).Simultaneously, be connected with the outer conductor of half firm coaxial cable, ohm of shank by the metal outer bush, namely high-temperature soldering has solved the problem that the antenna front end leaks that melts.And by being fastenedly connected of metal outer bush and medium tube, also solved the problem that the head that melts the antenna front end comes off.
The present invention further improves and is:
1, the medium tube cylindrical is provided with annular groove, and the corresponding position of metal outer bush is out of shape by riveting realizes being fastenedly connected of metal outer bush and medium tube in the groove that is pressed into described medium tube cylindrical.
2, shank is fixed by welding in the metal outer bush.
3, be filled with high temperature adhesive between the cylinder of described medium tube dress and radiation head afterbody.
4, shank and half just has been provided with inner conduit between the coaxial cable, and described inner conduit links to each other with water inlet tap, forms backwater channel between the inwall of inner conduit and shank, and described backwater channel links to each other with faucet.
5, the end section of antenna comprises: shank positioning sleeve, spacer shell, radio frequency contact pin connector and water inlet tap, faucet, Hough formula handle body, pommel and handle tail, described radio frequency contact pin connector, spacer shell and shank positioning sleeve assembly welding are one.
6, the end section of antenna comprises: described shank positioning sleeve is assemblied in the shank afterbody, and fixing to weld.
Among the present invention, radiation head is copper or the T type cylinder of rustless steel material, it is characterized by: front end is that cone connects cylinder or multiple edge body connects cylinder, make it to have the sharpness that directly thrusts tissue, its afterbody is cylinder, the axle center is provided with blind hole, and is processed with radial hole and gets through with blind hole at the afterbody cylinder.The technology purpose of two upright openings is to make the high-temperature soldering of inner conductor and radiation head blind hole to have enough bonding strengths.And after the inner wire of coaxial cable is packed the afterbody blind hole of radiation head into, again it is radially applied mechanical force, being aided with the distortion that presses fastening it.In addition, recommend to adopt the resistor pressure solder technology, make it have more reliable bonding strength.
Among the present invention, medium tube is electron ceramic material, cylindrical is step-like tubular cylinder, it is characterized by: be provided with the bipassage ring connected in star at the shoulder cylindrical, one annular groove is for increasing its adhesive strength, one annular groove is that mechanical riveting connects usefulness, to make it having sufficiently high bonding strength with the outer bush assembling
Among the present invention, outer bush is copper or the rustless steel material, its inside and outside circle is step-like tubular cylinder, it is characterized by: front end is the thin-walled tubulose, on the shoulder cylindrical that is assembled to medium tube, with respect to the annular groove position on the shoulder cylindrical of medium tube, impose the multiple spot mechanical pressure, make light-wall pipe produce the convex distortion, with the axial float that prevents both with radially wobble, in the cylindrical shoulder face of cylinder of the inner surface of outer bush and medium tube and annular groove, be coated with high temperature adhesive in addition in advance, further be aided with and be fastenedly connected.Root at its shoulder cylindrical is provided with annular groove, and when shank is assemblied in its surface, when adopting high-temperature soldering fixedly, an amount of stannum material can be deposited in the interior space of groove, to make it having enough weld strengths and air-tightness.Its axle center hole is assemblied on the outer conductor of half firm coaxial cable, the employing high-temperature soldering is fixed, be provided with chamfering at the axle center hole tail end, water conservancy diversion when being used as solder fusing, further make to have reliable mechanical connection between outer bush and the coaxial cable outer conductor and be electrically connected, and have good heat conductivity and air-tightness.
Among the present invention, shank is stainless steel thin-wall seamless steel pipe, it is characterized by: its front end encapsulation adopts high-temperature soldering to fix it on the afterbody shoulder cylindrical of outer bush.Because high-temperature soldering is shoulder cylindrical matching surface to shank inwall and outer bush, then utilize the annular groove that is located at outer bush, firm welding degree, tensile strength and the air-tightness that can further strengthen can keep simultaneously the smoothness, smooth of the butting surface of shank and outer bush in appearance.In addition, to being connected of outer bush and shank, can adopt laser welding technology.
Among the present invention, be communicated with water inlet tap by two inner conduits, cooling water can directly inject and melt antenna foremost, utilize shank inwall and half cavity that has just formed between coaxial cable, the inner conduit to make backwater channel, realize melting antenna hyperpyrexia front end and the half best single cycle cooling effect of coaxial cable just.
The technology of high-temperature soldering described in the present invention recommends to select for use the lead-free high-temperature solder stick, uses constant temperature electric iron, or semi-automatic welding, have enough weld strengths and favorable conductive, heat conductivility to guarantee it, and do not have the rosin joint phenomenon, air-tightness is good, and is water-tight, do not seep water.
High temperature adhesive of the present invention recommend to adopt the single-component epoxy resin glue, as selects homemade 6133C one-component thermostable epoxide-resin glue for use, and its characteristics are that dielectric constant is low, moistureproof and waterproof, and adhesive strength is high and resistance to elevated temperatures is good etc.
The distinctive feature of high-performance water-cooled microwave ablation antenna of the present invention, most critical is: this microwave ablation antenna position structure, involving in of outer bush part particularly wherein, utilize the position of this part, state, the uniformity of planform and physical dimension and accuracy, and the reliability of assembly technology and quality, make the boundary condition of the external electromagnetic field of this microwave ablation antenna, no longer be unsettled, no longer be unknown, thereby the performance that originally melts antenna and key property parameter are reached unanimity and have definitiveness, and then improved the degree of stability that originally melts antenna, high efficiency and reliability.
High-performance water-cooled microwave ablation antenna of the present invention namely melts the kitchen range scope to the scale of construction of clinical ablation tumor, reaches concordance and regular Expected Results, has established the technical foundation of hardware aspect simultaneously for the intellectuality that advances the microwave ablation tumor.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the front-end architecture sketch map of the embodiment of the invention one.
Fig. 2 is the tail structure sketch map of the embodiment of the invention one.
Fig. 3 is the front-end architecture sketch map of the embodiment of the invention two.
Fig. 4 is the tail structure sketch map of the embodiment of the invention two.
Label among the figure is schematically as follows: the 1-radiation head, and the 2-medium tube, 3-half is coaxial cable just, 4-outer bush, 5-shank, the 6-inner conduit, 7-shank positioning sleeve, 8-spacer shell, 9-radio frequency contact pin connector, 10-handle tail, the 11-water inlet tap, 12-faucet, 13-Hough formula handle body, 14-pommel, 15-water proof cover.
The specific embodiment
Embodiment one
As shown in Figure 1 and Figure 2, present embodiment high-performance water-cooled microwave ablation antenna, its composition comprises: radiation head 1, medium tube 2, half firm coaxial cable 3, outer bush 4, shank 5, inner conduit 6, shank positioning sleeve 7, spacer shell 8, radio frequency contact pin connector 9, handle tail 10, water inlet tap 11, faucet 12, Hough formula handle body 13, pommel 14.
As shown in Figure 1, half just pack into the cylindrical blind hole of afterbody of radiation head 1 of the inner wire of coaxial cable 3 adopt welding and be aided with and get riveting ready, fixed.Medium tube 2 is assemblied on the afterbody cylinder of radiation head 1, is coated with adhesive securement.Outer bush 4 encapsulations press and are aided with adhesive securement with the multiple spot mechanical force on the shoulder cylindrical of medium tube 2, and the axle center hole of outer bush 4 is assemblied in half just on the outer conductor of coaxial cable 3 simultaneously, and fixing to weld.Two inner conduits 6 are for being deep into the water inlet pipe of the front end that melts antenna.The front end encapsulation of shank 5 is connected fasteningly on the cylindrical of outer bush with the shoulder cylindrical of outer bush 4 to the endoporus of shank 5, adopt the high-temperature soldering technology.
Be illustrated in figure 2 as the tail structure of microwave ablation antenna.Half tail end and 9 welding of radio frequency contact pin connector of coaxial cable 3 just.Spacer shell 6 passes through its port assemblies on the cylindrical of the end of radio frequency contact pin connector 9, welded fixing, be welded with water inlet tap 11 and faucet 12 at spacer shell 6, two inner conduits 6 on water inlet tap 11 directly reach the front end that melts antenna, shank positioning sleeve 7 is by its end face rim of the mouth and spacer shell 8 end cylindricals assemble and welding is fixed, the axle center hole of positioning sleeve 7 and the welding of shank 5 outer surfaces.So far, consist of the link of the cooling water channel that melts antenna and microwave energy input.
Present embodiment high-performance water-cooled microwave ablation antenna, assembling process is as follows:
Earlier outer bush 4 is assemblied on the shoulder cylindrical of medium tube 2, smear bonding agent on both composition surfaces in advance, re-use the special tool anchor clamps, imposing the multiple spot mechanical force with respect to the annular groove position of the shoulder cylindrical of medium tube 2 presses, so that outer bush 4 inwalls produce the convex distortion, constitute " the medium tube assembly " that be fastenedly connected.
By two inner conduits 6 of technology length intercepting, the one end is welded in the port of water inlet tap 11, again with water inlet tap 11 together with two inner conduits 6 and faucet 12 respectively para-position be welded on the spacer shell 8, form by " water route assembly ".
With half just the inner wire of coaxial cable 3 pack in the cylindrical blind hole of afterbody of radiation head 1, adopt high-temperature soldering and be aided with and get riveting ready, fixed." medium tube assembly " outer conductor surface along half firm coaxial cable 3 is pushed away on the afterbody cylinder that installs to radiation head 1, should be coated with bonding agent at the afterbody periphery of irradiator 1 in advance, to the outer conductor junction of axle center hole tail end and the coaxial cable 3 of outer bush 4, adopt high-temperature soldering to fix.Be pushed into shank 5 on the shoulder cylindrical of outer bush 4 along coaxial cable 3 surfaces, adopt the high temperature soldering, emphasis guarantees the welding quality of the matching part of shank 5 front end endoporus and outer bush 4, i.e. enough tensile strength and air-tightness, and both joints must not have tin solder to be spilled over to both butting surfaces.
The assembling of present embodiment afterbody is followed successively by: the stomidium of the radio frequency contact pin connector 9 of earlier tail end of half firm coaxial cable 3 being packed into, utilize the fabrication hole of radio frequency contact pin connector, with both inner wire firm welding, again with the stomidium firm welding of outer conductor and the radio frequency contact pin connector 9 of coaxial cable 3.The port cover of spacer shell 8 that then will " water route assembly " installs on the end cylindrical of radio frequency contact pin connector 9, and the employing soldering connects firmly.Shift shank positioning sleeve 7 onto " water route assembly " front end along shank 5 again, the port and the cylindrical that utilize both to dock adopt welding to fix it.
In above-mentioned assembling process, all employing solder technology parts must not have the rosin joint phenomenon, and weld seam must not leak or seep water.Finish after the assembling of above-mentioned " melting antenna module ", namely carry out the check of properties of product and technical specification, carry out the requirement of national pharmaceuticals industry standard.
At last, the para-position of will " melting antenna module " is played glue and is fixed after packing in the Hough formula handle body 13, closing second half Hough formula handle body 13, glues together pommel 14 and handle tail 10 then.So far, finish present embodiment one assembling, carry out the GB2828 sampling inspection, or carry out all events and examine entirely.
Embodiment two
As shown in Figure 3, Figure 4, present embodiment high-performance water-cooled microwave ablation antenna, its composition comprises: radiation head 1, medium tube 2, half firm coaxial cable 3, outer bush 4, shank 5, inner conduit 6, shank positioning sleeve 7, water proof cover 15, radio frequency contact pin connector 9, handle tail 10, water inlet tap 11, faucet 12, Hough formula handle body 13, pommel 14.
Present embodiment is with the difference of embodiment one: the cooling water turnover structure of two embodiment is different.As shown in Figure 3, Figure 4, cooling water of the present invention is to be introduced in the cavity of water proof cover 15 and radio frequency contact pin connector 9 compositions from water inlet tap 11, again through half just space between the outer wall of the surface of coaxial cable 3 and inner conduit 6, be injected into the front end that melts antenna, flow back in the cavitys that shank positioning sleeve 7 and water proof cover 15 form from space between the inwall of the outer wall of inner conduit 6 and shank 4 then, flow out finally by faucet 12.
Present embodiment high-performance water-cooled microwave ablation antenna, assembling process is as follows:
Be same as embodiment one assemble flow earlier, on request, earlier outer bush 4 and medium tube 2 be assembled into " medium tube assembly ", again water inlet tap 11 is overlapped 15 para-position assembly weldings with water proof respectively with faucet 12 and become " water route assembly ".
Then, successively will half firm pack into the cylindrical blind hole of afterbody of radiation head 1 of the inner wire of coaxial cable 3, adopt welding and be aided with and get riveting ready and fixed.With " medium tube assembly " along half just outer conductor surface of coaxial cable 3 push away on the afterbody cylinder that is contained in radiation head 1, should be coated with bonding agent at the medium tube outer surface in advance, to the junction of tail end and the coaxial cable 3 of outer bush 4, the employing high-temperature soldering is fixed.Again with inner conduit 6 joint welding on the little cylindrical of afterbody of outer bush.Then, shank 5 is pushed into along coaxial cable 3 surfaces on the shoulder cylindrical of outer bush 4 of " medium tube assembly ", adopt the high temperature soldering technology, emphasis guarantees the welding quality of the matching part of shank 5 front end endoporus and outer bush 4, be enough tensile strength and air-tightness, its outer surface must not have the scolding tin material to overflow.
Present embodiment afterbody assembling is followed successively by, earlier will half firm pack into the stomidium of radio frequency contact pin connector 9 of the tail end inner wire of coaxial cable 3, good both inner wire of welding welds the outer conductor of coaxial cable 3 and the stomidium of radio frequency contact pin connector 9 again.Then, " water route assembly " is pushed into along shank 5 on the end cylindrical of radio frequency contact pin connector 9, adopts the soldering firm welding.Shift shank positioning sleeve 7 onto " water route assembly " front end along shank 5 again, the port and the cylindrical that utilize both to dock adopt welding to fix it.
Half tail end and 9 welding of radio frequency contact pin connector of coaxial cable 3 were just welded inner wire respectively before this, the outer conductor of coaxial cable 3 and the stomidium of adapter 9 were welded again.Then " water route assembly " pushed to radio frequency contact pin connector 9 along shank 5, when with after the end cylindrical of adapter 9 docks, adopt soldering to connect firmly, then to the endoporus of " water route assembly " water proof cover 15 and the fit clearance position of inner conduit 6, it is fixing to adopt soldering to connect equally.Shift shank positioning sleeve 7 onto " water route assembly " front end along shank 5 at last, in end face rim of the mouth and the cylindrical cooperation place of both butt joints, adopt soldering to connect fixing.
In above-mentioned assembling process, all employing solder technology must not have the rosin joint phenomenon, and weld seam must not leak or seep water.Finish after the assembling of above-mentioned " melting antenna module ", namely carry out the check of properties of product and technical specification, carry out the requirement of national pharmaceuticals industry standard.
At last, the para-position of will " melting antenna module " is played glue and is fixed after packing in the Hough formula handle body 13, covering second half Hough formula handle body 13, glues together pommel 14 and handle tail 10 then.So far, finish present embodiment one assembling, can carry out the GB2828 sampling inspection, or carry out all events and examine entirely.
Show that from exemplar assembling and the test result of embodiment high-performance water-cooled microwave ablation antenna of the present invention has more stable characteristics aspect its performance and key property parameter.Show by the load experiment to the Hepar Sus domestica that exsomatizes, reach the effect of the scale of construction basically identical that melts kitchen range.
Believe that by further experiment with to the adjustment of antenna structure parameter high-performance water-cooled microwave ablation antenna of the present invention is bound to realize its best degree of stability, high efficiency and reliability on its quantitative data and regular basis.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (7)
1. high-performance water-cooled microwave ablation antenna, comprise: radiation head, medium tube, half firm coaxial cable, shank, described medium tube is assemblied on the afterbody cylinder of radiation head, described half firm inner conductor has been packed into, and radiation head afterbody cylinder blind hole is interior also fixes, it is characterized in that: comprise that also encapsulation is at the metal outer bush of medium tube afterbody, described half just coaxial cable pass the back in the axle center hole of metal outer bush and be connected with radiation head, metal outer bush front end sleeve is contained on the medium tube, the shank front end sleeve is contained on the outer bush, and described outer bush and half is the outer conductor of coaxial cable just, shank is Ohmic contact.
2. high-performance water-cooled microwave ablation antenna according to claim 1, it is characterized in that: the medium tube cylindrical is provided with annular groove, and the corresponding position of metal outer bush is out of shape by riveting realizes being fastenedly connected of metal outer bush and medium tube in the groove that is pressed into described medium tube cylindrical.
3. high-performance water-cooled microwave ablation antenna according to claim 1, it is characterized in that: shank is fixed by welding in the metal outer bush.
4. high-performance water-cooled microwave ablation antenna according to claim 2 is characterized in that: be filled with high temperature adhesive between the cylinder of described medium tube dress and radiation head afterbody.
5. high-performance water-cooled microwave ablation antenna according to claim 1, it is characterized in that: shank and half just has been provided with inner conduit between the coaxial cable, described inner conduit links to each other with water inlet tap, is backwater channel between the outer surface of inner conduit and the inwall of shank, and described backwater channel links to each other with faucet.
6. according to each described high-performance water-cooled microwave ablation antenna of claim 1-5, it is characterized in that: the end section of antenna comprises: shank positioning sleeve, spacer shell, radio frequency contact pin connector and water inlet tap, faucet, Hough formula handle body, pommel and handle tail, described radio frequency contact pin connector, spacer shell and shank positioning sleeve assembly welding are one.
7. high-performance water-cooled microwave ablation antenna according to claim 6, it is characterized in that: the end section of antenna comprises: described shank positioning sleeve is assemblied in the shank afterbody, and fixing to weld.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320144929 CN203122600U (en) | 2013-03-27 | 2013-03-27 | High-performance water-cooling microwave ablation antenna |
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| CN 201320144929 CN203122600U (en) | 2013-03-27 | 2013-03-27 | High-performance water-cooling microwave ablation antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142307A (en) * | 2013-03-27 | 2013-06-12 | 杨兴瑞 | High-performance water-cooled microwave ablation antenna |
| CN106109011A (en) * | 2016-08-30 | 2016-11-16 | 北京天助畅运医疗技术股份有限公司 | A kind of blood vessel Microwave Coagulation water-cooled conduit |
-
2013
- 2013-03-27 CN CN 201320144929 patent/CN203122600U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142307A (en) * | 2013-03-27 | 2013-06-12 | 杨兴瑞 | High-performance water-cooled microwave ablation antenna |
| CN106109011A (en) * | 2016-08-30 | 2016-11-16 | 北京天助畅运医疗技术股份有限公司 | A kind of blood vessel Microwave Coagulation water-cooled conduit |
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Effective date of registration: 20190604 Address after: 211100 Dongshan Industrial Concentrated Area, 811 Hushan Road, Jiangning District, Nanjing City, Jiangsu Province, 4 buildings and 3 floors Patentee after: NANJING CHANGCHENG MEDICAL EQUIPMENT Co.,Ltd. Address before: 210019 Room 1501, Building 8, 76 Xin'anjiang Street, Jianye District, Nanjing City, Jiangsu Province Patentee before: Yang Xingrui |
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