CN206350755U - Anti- microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna - Google Patents

Anti- microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna Download PDF

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CN206350755U
CN206350755U CN201620850875.5U CN201620850875U CN206350755U CN 206350755 U CN206350755 U CN 206350755U CN 201620850875 U CN201620850875 U CN 201620850875U CN 206350755 U CN206350755 U CN 206350755U
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microwave
ablation
radiation head
antenna
integral type
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杨兴瑞
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Baide Suzhou Medical Co ltd
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Abstract

The utility model, which is related to one kind, has anti-microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna, including:Radiation head, medium tube, half firm coaxial cable and thermocouple, it is characterised in that:Metallic shield is provided with outside radiation head, the inner surface of the metallic shield is fixed at the temperature survey end of thermocouple.The anti-microwave interference thermometric of the utility model and ablation integral type semi-rigid water-cooling microwave ablation antenna, use perfect antenna structure, reliably shield the effect and severe jamming of microwave energy and microwave electromagnetic field strength to temperature survey end, it is in intracavitary, enteron aisle or intravascular so as to solve half firm microwave ablation antenna, or even in heart, while implementing Microwave Coagulation Therapy, the true temperature to ablated tumor carries out the key technology of measurement in real time.This is that microwave clinical treatment obtains optimum curative effect and its application extension there is provided reliable guarantee, also for partly just microwave ablation or microwave heat therapeutic are intelligent, creates advantage.

Description

Anti- microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna
Technical field
The utility model is related to a kind of half firm water-cooled, and there is anti-microwave electromagnetic field to disturb, and be controlled implementing microwave ablation tumour While treatment, the one-piece medical instrument of tumor tissues temperature can be measured in real time, it is adaptable in such as intracavitary, enteron aisle or blood vessel It is interior, so in heart, such as clinical operation of varication focus belongs to medical microwave technical applications.
Background technology
With the fast development of modern high and new technology and bioengineering, medical microwave technology is able to more extensive use.Enter Since entering 21 century, microwave ablation is acknowledged as with minimally invasive, accurate, efficient, and the small significant advantage of toxic side effect, particularly To the oncotherapy after middle and advanced stage and recurrence after operation, with more programming rate is fast, in knurl, temperature is high, small by charing influence of blood flow, And extensive concern and the attention of the big outstanding feature of ablation range, extremely medical field expert, scholar and doctor, and patient.
The fuel factor and non-thermal effect that microwave action is produced in organism cause the heating of tumor cell tissue, temperature rise, fast Speed is killed, until coagulation necrosis.Clinical operation shows that microwave action forms the temperature of ablation thermal field in cell tissue, causes Make death of neoplastic cells, or survival, or the anatomical details such as the normal cell at tumour edge may be killed, be related to microwave ablation Success or failure and curative effect.Therefore, the real time temperature of microwave action cell tissue thermal field how is obtained in microwave ablation, into For the key technology of operative doctor and its apparatus development person concern the most.
However, be currently used in intracavitary, enteron aisle or it is intravascular implement micro-wave therapeutic " half just water cooling there is real time temperature measurement Microwave ablation single antenna ", there are problems that unsurmountable technological deficiency and:
During microwave ablation, because microwave antenna is the inside of getting involved in ablation tissue, i.e. antenna is in itself Among microwave electromagnetic field, thus thermometric and microwave ablation single antenna temperature survey end also just inevitably by microwave energy Effect and microwave electromagnetic field strength interference, cause it can not measure the real temperature data of ablated tumor cell tissue. The single antenna using existing thermometric and microwave ablation Pork liver ex vivo is carried out microwave ablation test result indicates that, its main frame Than actual temperature rise rate much faster, the temperature data of display is more much higher than the actual temperature of tissue for the temperature rise rate of display It is many, between the two in the presence of great error, and no regularity can be followed.
The content of the invention
Key technology to be solved in the utility model is:In microwave in intracavitary, enteron aisle or intravascular implementation ablation While, microwave action reliably can be inerrably measured in the real time temperature of tissue, propose a kind of anti-microwave interference thermometric with disappearing Melt integral type semi-rigid water-cooling microwave ablation antenna.
The anti-microwave interference thermometric of the utility model and ablation integral type semi-rigid water-cooling microwave ablation antenna, including:Radiation head, Medium tube, half firm coaxial cable and thermocouple, it is characterised in that:Metallic shield, the heat are provided with outside the radiation head The inner surface of the metallic shield is fixed at the temperature survey end of galvanic couple.
The anti-microwave interference thermometric of the utility model and ablation integral type semi-rigid water-cooling microwave ablation antenna, also with following spy Levy:
1st, between the metallic shield and radiation head it is sealed full weld seam welding.
2nd, the temperature survey end of thermocouple is fitted with the inner surface of metallic shield.
3rd, the metallic shield is arranged at the front end of radiation head, metallic shield hood shape and radiation head front end geometry kissing Close.
4th, coated between the temperature survey end of thermocouple and the inner surface of metallic shield and filled with heat-conducting glue.
5th, the metallic shield presses is welded and fixed in radiation head front end and sealed full weld seam.
6th, the medium tube is assemblied on the afterbody cylinder of radiation head, and the inner wire of the half firm coaxial cable loads simultaneously In the axle center blind hole for being fixed on radiation head-tail cylinder.
7th, this anti-microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna, also with outer bush and outer shield Sleeve pipe, two temperature measuring wires are sequentially passed through between hole, the exterior circular column of radiation head-tail and medium pipe orifice in radiation head Gap, outer sheath tube endoporus between gap, outer bush endoporus and half firm coaxial cable outer conductor outside half just coaxial cable with leading Space between body, extends to the afterbody of antenna.
The anti-microwave interference thermometric of the utility model and ablation integral type semi-rigid water-cooling microwave ablation antenna, also with following spy Levy:The anti-microwave interference thermometric of the utility model and ablation integral type semi-rigid water-cooling microwave ablation antenna, use perfect antenna structure, The effect and severe jamming of microwave energy and microwave electromagnetic field strength to temperature survey end are reliably shielded, so as to solve in chamber It is in interior, enteron aisle or intravascular, so in heart, while implementing Microwave Coagulation Therapy, ablated tumor true temperature is carried out real When the key technology that measures.This is that microwave clinical treatment obtains optimum curative effect and its application extension there is provided reliable guarantee, Advantage is created for half just Microwave Coagulation Therapy intellectuality.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is the antenna front ends structure schematic cross-sectional view of the utility model embodiment one.
Fig. 2 is Fig. 1 B-B sectional views.
Fig. 3 is Fig. 1 C-C sectional views.
Fig. 4 is the antenna tail structure schematic cross-sectional view of the utility model embodiment one.
Fig. 5 is Fig. 4 D-D sectional views.
Fig. 6 is the antenna tail structure schematic diagram of the utility model embodiment two.
Label and signal title in Fig. 1-Fig. 6 is as follows:1- radiation heads, 2- medium tubes, the firm coaxial cables of 3- half, 4- fastenings Ring, 5- outer bush, 6- water cavity sets, 7- water inlet pipes, 8- outlet pipes, 9- centering collars, 10- thermoplastic tubes, 11- outer sheath tubes, 12- is pure Copper wire temperature measuring wire, 13- Contra wire temperature measuring wires, 14- metallic shields, 15- handle tails, 16- faucets, 17- water inlet taps, 18- Hafu-type shank bodies, 19- pommels, 20-T shape spacers, 21- supports, the special switching line terminals of 22-, the connection of 23- radio frequencies contact pin Device.
Embodiment
Embodiment one
As Figure 1-Figure 4, the anti-microwave interference thermometric of the present embodiment and ablation integral type semi-rigid water-cooling microwave ablation antenna, Its composition includes:Radiation head 1, medium tube 2, half firm coaxial cable 3, dead ring 4, outer bush 5, water cavity set 6, water inlet pipe 7, water outlet Pipe 8, collar 9 of feeling relieved, thermoplastic tube 10, outer sheath tube 11, T fine copper silk temperature measuring wire 12, Contra wire temperature measuring wire 13, metal Radome 14, handle tail 15, faucet 16, water inlet tap 17, Hafu-type shank body 18, pommel 19, shape spacer 20, the support of circular plate type 21, special line terminals 22 and the radio frequency contact pin connector 23 of transferring of thermometric.
As shown in figure 1, in the front cone of radiation head 1 and the axial inclined hole of big cylinder, being respectively provided with fine copper silk Temperature measuring wire 12 and Contra wire temperature measuring wire 13, in the junction of two temperature measuring wires 12,13, are welded into using special technology For spherical fusion points, as the temperature survey end of T-shaped thermocouple, the convex front-end surface in radiation head 1 of preceding hemisphere face of fusion points, The later half sphere of fusion points falls into and is fit in the front end hemispherical dimples of radiation head 1.Two temperature measuring wires 12,13 pass through medium Gap between the endoporus of pipe 2 and the afterbody exterior circular column of radiation head 1, through the endoporus of outer bush 5 with half just the outer conductor of coaxial cable 3 it Between gap, then navigate within outer sheath tube 11, extend to ablation antenna afterbody.In the circular cone of the radiation head 1 Preceding hemisphere surface at the top of body with the spherical fusion points (temperature survey end) coats enough extraordinary heat-conducting glues, then by circular cone Shape anaerobic is copper or the encapsulation of brassiness metallic shield 14 and tightly fits in the conical surface of radiation head 1 and described spherical molten The preceding hemisphere surface of chalaza (temperature survey end), then using special fixture, metallic shield 14 is pressed in the son of radiation head 1 Oral area position, then to the riveting position of the two use sealed full weld seam firm welding, be applied to therebetween without rosin joint with Without solder skip.Load the inner wire of half firm coaxial cable 3 in the afterbody cylinder blind hole of the radiation head 1, and to press and weld The mode of connecing is fixed.The encapsulation of medium tube 2 on the afterbody cylinder of radiation head 1, and both contact surfaces be coated with appropriate bonding agent consolidate It is fixed.The encapsulation outer bush 5 on the cylindrical afterbody shoulder of medium tube 2 is cylindrical, and pressed fixation with mechanical force, it is aided with bonding agent and consolidates Fixed, the axle center hole assembling of outer bush 5 is enclosed on the outer conductor of half firm coaxial cable 3, to be welded and fixed.Water cavity set 6 is assembled and welded Be connected on the shoulder of the rear end of outer bush 5 it is cylindrical on, constitute " hydrothermal exchange cavity ".Three apertures that the end face of water cavity set 6 is opened up, point Three capillaries are not welded, wherein a capillary is water inlet pipe 7, two are outlet pipe 8.In half elongated firm coaxial cable 3 Outer conductor on, encapsulation centering collar 9, to keep water inlet pipe 7 and outlet pipe 8 to be distributed in half just around coaxial cable 3, so Encapsulation and thermoplastic tube 10 is sealed afterwards, to keep water inlet pipe 7 and outlet pipe 8 uniform and be wrapped in half just coaxial cable 3, and be allowed to have There is good contact condition, then, some centering collars 9 and thermoplastic tube 10 are assembled successively.
Fig. 2 show Fig. 1 B-B sectional views.The just coaxial cable 3 of centering collar 9, thermoplastic tube 10, half is illustrated in figure, with And two temperature measuring wires 12,13 matching requirements with the location of relation.
Fig. 3 show Fig. 1 C-C sectional views.The just coaxial cable 3 of water inlet pipe 7, outlet pipe 8, half is illustrated in figure, and Two temperature measuring wires 12,13 matching requirements with the location of relation.
As shown in Figure 4, Figure 5, it is the tail structure of the antenna of the utility model embodiment one, its handle contours is characterized as straight It is circular.Its internal structure is that copper T-shaped spacer 20 is assembled into the afterbody in three capillaries 7,8 and half firm coaxial cable 3, To be welded and fixed it, while containing outer sheath tube 11 using the shoulder hole of the front end of T-shaped spacer 20, to prevent its excessive axle To moving and radially wobbling.Water inlet pipe 7 is welded with water inlet tap 17 and connected, two outlet pipes 8 are welded with faucet 16 and connected, By half just coaxial cable 3 inner and outer conductor respectively with the inner and outer conductor firm welding of radio frequency contact pin connector 23, inner and outer conductor it Between must not short circuit.Water inlet tap 17, faucet 16 and radio frequency contact pin connector 23, and special 22 points of the line terminals of switching of two thermometrics Other wielding neck is on circular plate type support 21.Finally, outside by the large cylindrical of T-shaped spacer 20 and the big of circular plate type support 21 Circle, clamping is in the axial inside groove of Hafu-type shank body 18, and handle tail is closed in heat seal or second half glued Hafu-type shank body 18, finally assembling 15 and pommel 19.
The present embodiment primary antibody microwave interference thermometric and the assembling of ablation integral type semi-rigid water-cooling microwave ablation antenna, process is such as Under:
First, component assembling is carried out.
Using Special Welding Technique, the connection end of fine copper silk temperature measuring wire 12 and Contra wire temperature measuring wire 13 is melted Weld as spherical fusion points, answer smooth mellow and full, impulse- free robustness, or professional factory customization.Again by the tail end of two temperature measuring wires from radiation First 1 front end passes two axial inclined holes in the body of radiation head 1 respectively, then the later half sphere of spherical fusion points is pushed into and coincide In the hemispherical dimples of the front end of radiation head 1, its contact surface is coated with appropriate bonding agent, performs technique for sticking requirement.Examine:Fusion The preceding hemisphere face of point protrudes from the front-end surface of radiation head 1, and its line is highly 0.2-0.3 millimeters.
Preceding hemisphere surface with spherical fusion points (temperature survey end) at the top of the cone of radiation head 1 coats enough spies Kind of heat-conducting glue, it is then that conical anaerobic is copper or the tight fit encapsulation of brassiness metallic shield 14 is in the circular cone body surface of radiation head 1 Face and the preceding hemisphere surface of spherical fusion points, then using special fixture, by the tail end spinning riveting of metallic shield 14 in radiation head 1 Groove in, finally the riveting position of the two is welded and fixed using sealed full weld seam again.Examine:Therebetween full weld seam Welding, should be without rosin joint, without solder skip.
By water cavity set 6 assemble and be welded in the shoulder of outer bush 5 it is cylindrical on, constitute " hydrothermal exchange cavity ", then by one Water outlet capillary 7, two difference of outlet pipe 8 wielding necks firmly on the aperture of end face three that water cavity covers 6, constitute " water route group Part ".
By radio frequency contact pin connector 23, water inlet tap 17, faucet 16 and the special switching line terminals 22 of two thermometrics etc. respectively Wielding neck is constituted " bracket component " on (circular plate type) support 21.
Hereafter it is the general assembly of the present embodiment, flow is as follows:
The inner wire of half firm coaxial cable 3 is fitted into the blind hole of the afterbody cylinder of radiation head 1, imposed using specific purpose tool Press, then using high-temperature soldering, molten tin should inject from the radial hole of the afterbody outside cylinder of radiation head 1, to reach the mesh of firm welding 's.Again by the encapsulation of medium tube 2 on the afterbody cylinder of radiation head 1, while taking advantage of a situation two temperature measuring wires 12,13 from medium tube 2 With being passed in the gap of the afterbody cylinder of radiation head 1, it is coated with each contact surface of the medium tube 2 with radiation head 1 appropriate bonding Agent.
Assembling to " water route component ", the outer conductor by the endoporus of outer bush 5 along half firm coaxial cable 3 axially loads, simultaneously Take advantage of a situation two temperature measuring wires 12,13 from the endoporus of outer bush 5 with being passed in the half just gap of the outer conductor of coaxial cable 3, led when outside Cover after 5 encapsulations are that the shoulder of medium tube 2 is cylindrical upper and are pushed into place, corresponded to using special riveting point instrument in outer bush 5 Medium tube 2 it is cylindrical on groove position impose mechanical pressure, to constrain both relative motion, form a fixed connection, and in Both are coated with appropriate bonding agent by contact surface, to endoporus and the half firm outer conductor contact site of coaxial cable 3 of outer bush 5, it is necessary to adopt With low-temperature welding, both ensured not destroying the high insulation paint film of temperature measuring wire, both firm weldings are made again.
Assembling to elongated " wire body " position, first by half firm coaxial cable 3, water inlet pipe 7, two outlet pipes 8 and two Temperature measuring wire 20,21 is made in order and straightening vertically, hereafter by some centering collars 9 and some thermoplastic tubes 10 successively encapsulation half On the outer conductor of firm coaxial cable 3, the plastic packaging in encapsulation, last and then encapsulation outer sheath tube 11 refills clamping on outer bush 5 Gu ring 4 etc..It should be noted that in above-mentioned assembling process:Half just coaxial cable 3, water inlet pipe 7, two outlet pipes 8 and two temperature measuring wires 12, The position of 13 assemblings and its state, as shown in Figure 2,3, each operation assembling can be according to semi-rigid water-cooling microwave ablation antenna patent (the patent No.:ZL201310102228.7 relevant content and requirement) is carried out.
Can be according to the semi-rigid water-cooling microwave ablation antenna patent (patent No. to each operation assembling in handle: ZL201310102228.7 relevant content and requirement) is carried out.It is again noted that:Two temperature measuring wires 12,13 are from outer sheath tube After inside passing, must not be wound with other parts, by its tail end be respectively welded in two thermometrics it is special switching line terminals 22 on, such as Fig. 4, shown in 5, and it should weld reliable, no rosin joint.
Before handle assembling is implemented, semi-finished product should be carried out with full performance pharmaceuticals industry standardized product relevant with country and dispatched from the factory The full inspection of index.In addition, in above-mentioned assembling process, all use welding techniques answer firm welding reliable, no rosin joint phenomenon, especially Be related to water circuit system position, should must not leak, must not seep water.All use adhesive technologys are high from the one-component of normal temperature cure Warm bonding agent, and strict implement technique for sticking.
It is finally the heat seal of the present embodiment general assembly or glued plastic handle process, this process still can be micro- according to half firm water cooling Ripple melts the antenna patent (patent No.:ZL201310102228.7 relevant content and requirement) is carried out.Product inspection afterwards, can Perform GB2828 sampling inspection.
Embodiment two
The antenna structure of the present embodiment and the difference of embodiment one are, employ the preferable L-type pistol grip of feel, The difference of its internal structure is that the special switching line terminals 22 of two thermometrics are integrally fixed on (L-type) support 20, as shown in Figure 6. Label signal refers to embodiment one in Fig. 6.
The present embodiment and the same section of embodiment one, are described again here.
It is with regard to different assemble flows:Water inlet tap 17, faucet 16 and the special switching line terminals 22 of two thermometrics are welded in advance Constitute " bracket component ", then the platform for L-type radio frequency contact pin connector 23 being welded and being fixed on using the tubular rim of the mouth of L-type support 21 On shoulder is cylindrical, then successively by water inlet pipe 7, two outlet pipes 8 and with temperature measuring wire 12,13 and water inlet tap 17, faucet 16 and The special switching line terminals 22 of two thermometrics carry out position and are welded and fixed.Note:Half just coaxial cable 3 inner and outer conductor respectively with Must not short circuit between the internal and external conductor firm welding of radio frequency contact pin connector 23, inner and outer conductor.
Before the assembling of L-type handle is implemented, semi-finished product should be carried out with full performance pharmaceuticals industry standardized product relevant with country The full inspection for index of dispatching from the factory.In addition, in above-mentioned assembling process, all use welding techniques answer firm welding reliable, no rosin joint phenomenon, More particularly to water circuit system position, should must not leak, must not seep water.All use adhesive technologys, the single group from normal temperature cure Part high temperature adhesive, and strict implement technique for sticking.
It is finally the heat seal of the present embodiment general assembly or glued plastic handle process, this process still can be micro- according to half firm water cooling Ripple melts the antenna patent (patent No.:ZL201310102228.7 relevant content and requirement) is carried out.Product inspection afterwards, can Perform the sampling inspection of GB 2828.
The anti-microwave interference thermometric of the utility model and ablation integral type semi-rigid water-cooling microwave ablation antenna, our experiments show that, The effect of the anti-interference measurement true temperature in microwave field is realized, while being reached in terms of its performance with technical indicator Country《Microwave Coagulation equipment》With《Microwave heat therapeutic equipment》Professional standard regulation, including to microwave heat therapeutic, ablation and thermometric Relevant specification with require.
In addition to the implementation, the utility model can also have other embodiment.All use equivalent substitutions or equivalent change The technical scheme to be formed is changed, the protection domain of the utility model requirement is all fallen within.

Claims (8)

1. a kind of anti-microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna, including:Radiation head, medium tube, Half firm coaxial cable and thermocouple, it is characterised in that:Metallic shield, the temperature of the thermocouple are provided with outside the radiation head Degree measurement end is fixed on the inner surface of the metallic shield.
2. anti-microwave interference thermometric according to claim 1 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:It is sealed full weld seam welding between the metallic shield and radiation head.
3. anti-microwave interference thermometric according to claim 1 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:Fitted with the inner surface of metallic shield at the temperature survey end of thermocouple.
4. anti-microwave interference thermometric according to claim 1 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:The metallic shield is arranged at the front end of radiation head, and metallic shield hood shape matches with radiation head front end geometry.
5. anti-microwave interference thermometric according to claim 1 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:Coated between the temperature survey end of thermocouple and the inner surface of metallic shield and filled with heat-conducting glue.
6. anti-microwave interference thermometric according to claim 3 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:The metallic shield presses to be welded and fixed in radiation head front end and sealed full weld seam.
7. anti-microwave interference thermometric according to claim 1 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:The medium tube is assemblied on the afterbody cylinder of radiation head, and the inner wire of the half firm coaxial cable loads and consolidated In the axle center blind hole for being scheduled on radiation head-tail cylinder.
8. anti-microwave interference thermometric according to claim 1 and ablation integral type semi-rigid water-cooling microwave ablation antenna, it is special Levy and be:Also there is outer bush and outer sheath tube, two temperature measuring wires sequentially pass through hole in radiation head, radiation head-tail it is outer The gap between the firm coaxial cable outer conductor in gap, outer bush endoporus and half between cylinder and medium pipe orifice, oversheath Space between pipe orifice and half firm coaxial cable outer conductor, extends to the afterbody of antenna.
CN201620850875.5U 2016-08-08 2016-08-08 Anti- microwave interference thermometric and ablation integral type semi-rigid water-cooling microwave ablation antenna Active CN206350755U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106214252A (en) * 2016-08-08 2016-12-14 杨兴瑞 Anti-microwave interference thermometric with melt integral type semi-rigid water-cooling microwave ablation antenna
WO2020051802A1 (en) * 2018-09-12 2020-03-19 Covidien Lp Retractable sheath

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106214252A (en) * 2016-08-08 2016-12-14 杨兴瑞 Anti-microwave interference thermometric with melt integral type semi-rigid water-cooling microwave ablation antenna
WO2020051802A1 (en) * 2018-09-12 2020-03-19 Covidien Lp Retractable sheath

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Co-patentee before: Yang Xingrui

Patentee before: Zheng Jiasheng