CN201840518U - Melting system - Google Patents
Melting system Download PDFInfo
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- CN201840518U CN201840518U CN2010205512817U CN201020551281U CN201840518U CN 201840518 U CN201840518 U CN 201840518U CN 2010205512817 U CN2010205512817 U CN 2010205512817U CN 201020551281 U CN201020551281 U CN 201020551281U CN 201840518 U CN201840518 U CN 201840518U
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- far
- expanding stent
- expansion element
- central lumen
- ablation
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Abstract
The utility model discloses a melting system, which comprises a sheath tube with a central chamber. A melting duct is arranged in the central chamber; the duct including a duct body is provided with a far end, a near end and a second central chamber; a melting portion fixed to the far end of the duct body includes an elastic head end tube; the elastic head end tube is further provided with a pore; a guide wire and a lead are arranged in the second central chamber and extend into the elastic head end tube through the second central chamber; the guide wire extends to the outside of the duct through the pore; a far end of the guide wire is provided with an expansion support; and the expansion support consists of an expansion element by means of screw rotation. When the rotating direction of the duct is the same as the screw direction of the expansion element, the expansion element cannot rotate so as to stably support the guide wire.
Description
Technical field
This utility model relates to a kind of ablation system, concretely, relates to a kind of ablation system that is used for the tubulose port area.
Background technology
Electricity physiological electrode conduit (hereinafter to be referred as electrode catheter) has been widely used in the medical practice at present, and the electricity physiological signal that it is mainly used in inner each position of record heart carries out electricity irritation to heart, thereby reaches the purpose to heart disease mapping and treatment.Its using method is at first puncture femoral vein blood vessel or internal jugular vein blood vessel, under radioscopy, along lumen of vessels electrode catheter is delivered to diverse location in the heart, and heart is carried out electrophysiologic study, mapping or radio-frequency (RF) ablation.
Conduit in the market in use, generally enters part to be melted by the seal wire traction, withdraws from seal wire then in body, then melts.And the far-end of conduit mostly is vertical structure, and when being used for linear ablation, the described part that melts is waited to melt part with the linearity in the atrium and contacted with each other, and supported and fixes for the described part that melts, thereby reach good ablation effect.But for tubular area, as pulmonary vein, when adopting the conduit of this structure to melt, its effect is very undesirable.Because when adopting this conduit when tubular areas such as pulmonary vein melt, except ablating electrode, the other parts of conduit all do not support the location, make described conduit be difficult to find target position in ablation procedure, are difficult for handling.
Therefore, need be a kind of for the tubulose port area, as melting of orifices of pulmonary veins, can provide better support localized ablation system.
Summary of the invention
This utility model provides a kind of ablation system, comprises the sheath pipe with a central lumen, and described central chamber is provided with ablation catheter;
Described conduit comprises catheter body, and it has far-end, near-end and second central lumen, is fixed with at the far-end of described catheter body and melts part, is fixed with joystick at the near-end of described catheter body;
The described part that melts comprises elasticity head end pipe, and it comprises at least one chamber, is provided with shape-memory wire at least one chamber of described elasticity head end pipe, also is provided with an aperture on the described elasticity head end pipe;
Also comprise seal wire and lead in described second central chamber, it extends in the chamber of described elasticity head end pipe by second central lumen, described seal wire extends to the conduit outside by described aperture, the far-end of described seal wire is provided with expanding stent, and described expanding stent is made of the rotation of expansion element spiral.
Preferably, described expanding stent can constitute by described expansion element one-way spiral rotation, also can constitute by described expansion element bidirectional screw rotation.
Preferably, after described expansion element is shaped in advance, on the described expanding stent that is adhesively fixed.
Preferably, described expansion element is made by shape-memory material, and is more preferred, and described expansion element is by nickel-titanium alloy material.
In the embodiment of the present utility model, the described part that melts comprises a bending section, and preferred, described bending section is a helical structure.
Described bending section supports by described shape-memory wire and constitutes.
Preferably, the left side projection view of described bending section is circular, and its diameter is 20-25mm.
In the orthographic projection view of described bending section, preferred, its length is 20-30mm.
Preferably, also be provided with ring electrode on described elasticity head end pipe, it is electrically connected with described lead respectively.
Of the present utility model one preferred embodiment in, described ablation system comprises the seal wire that has expanding stent, described expanding stent is made of the rotation of expansion element spiral, when the hand of spiral of direction and the expansion element of the described conduit of rotation is identical, this expansion element can not rotate, thereby provides stable support to seal wire.
Description of drawings
Shown in Figure 1 is the structural representation of a kind of preferred ablation system 10 of the present utility model;
The postrotational view that shown in Figure 2 is according to ablation system among Fig. 1 10;
The cutaway view that shown in Figure 3 is along A-A line among Fig. 2;
The cutaway view that shown in Figure 4 is along B-B line among Fig. 1;
The cutaway view that melts part 31 that shown in Figure 5 is according to this utility model preferred embodiment, the annexation between part 31 and the catheter body 33 is melted in expression;
The left view that shown in Figure 6 is according to ablation system among Fig. 1 10.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail, but this utility model is not limited only to the following examples.
Shown in Figure 1 is the structural representation of a kind of preferred ablation system 10 of the present utility model, comprises sheath
Pipe 12 is located at the conduit 13 in the described sheath pipe 12, and is located at the seal wire 14 in the described conduit 13.Described seal wire 14 comprises far-end and near-end, and its far-end is provided with expanding stent 15.
The postrotational view that shown in Figure 2 is according to ablation system among Fig. 1 10.Described conduit 13 comprises catheter body 33, and described catheter body 33 comprises far-end and near-end, and the far-end of described catheter body 33 is connected with and melts part 31, and the near-end of described catheter body 33 is connected with described joystick 17.
The cutaway view that shown in Figure 3 is along A-A line among Fig. 2.Described sheath pipe 12 comprises single central lumen 21, and described conduit 13 extends in described central lumen 21, and described sheath pipe 12 can be made by the macromolecular material of biocompatibility, and is preferred, made by polyethylene or makrolon material.
The cutaway view that shown in Figure 4 is along B-B line among Fig. 1.The cutaway view that melts part 31 that shown in Figure 5 is according to this utility model preferred embodiment, the annexation between part 31 and the catheter body 33 is melted in expression.Described catheter body 33 comprises reinforced pipe and is placed in its outside main body pipe (not shown).Described main body pipe can be made by the macromolecular material of biocompatibility, and is preferred, made by polyether block amide, polyurethane or nylon material.Preferably, the inwall of described main body pipe comprises one deck wire braid (not shown) at least, can be the rustless steel braid, and described wire braid can be one deck, two-layer or more.Described reinforced pipe comprises single second central lumen 331, as shown in Figure 5.Described reinforced pipe can be made by any proper polymer material, and is preferred, by polyether block amide, polyurethane or the extrusion modling of nylon material one.Described catheter body is preferably elongated, flexible, but incompressible on its length direction, described central lumen 331 extending axially in catheter body 33.
As shown in Figure 5, the described part 31 that melts comprises elasticity head end pipe 311, and it can be made by biocompatible materials, is preferably made by elastomeric biomaterial, as the block polyetheramides resin.Preferably, the inwall of described elasticity head end pipe 31 comprises one deck wire braid (not shown) at least, can be the rustless steel braid, and described wire braid can be one deck, two-layer or more.
As shown in Figure 5, described elasticity head end pipe 311 comprises far-end and near-end, and it can be single chamber structure or multi-cavity structure, is preferably three chamber structures, comprises first chamber, 35, the second chambers 36 and the 3rd chamber 37.Described first chamber 35, second chamber 36 and the 3rd chamber 37 can all be eccentric chambers, also can be that a central lumen and two eccentric chambers constitute, and it is connected with the central lumen 331 of described catheter body 33 respectively.The near-end of described elasticity head end pipe 311 is connected with described catheter body 33, and the far-end of described elasticity head end pipe 311 is provided with ablating electrode 16.Be provided with ring electrode 11 on the length direction of elasticity head end pipe 311, its quantity can be according to actual needs and different, can not have ring electrode, also can be one, two, three, four or more.
Preferably, the near-end of described elasticity head end pipe 311 is levigate end 315, as shown in Figure 5, its external diameter matches with the internal diameter of catheter body 33, described levigate end 315 is inserted in the catheter body 33, it can be fixed by bonding, welding or other suitable manner, and is preferred, by ultraviolet curing glue that itself and catheter body 33 bondings is fixing.
As shown in Figure 5, also be provided with shape-memory wire 34 in the described elasticity head end pipe 311, it can be made by any suitable material, is preferably made by Nitinol.Described shape-memory wire 34 extends in second chamber 36 of described elasticity head end pipe 311, and its remote extension is fixed on the elasticity head end pipe 311 by glue or other suitable material to the far-end of described elasticity head end pipe 311.The far-end of described shape-memory wire 34 can not fixed yet, and directly is placed on the far-end of elasticity head end pipe 311.The near-end of described shape-memory wire 34 is bonded and fixed at the near-end of described elasticity head end pipe 311 by glue or other suitable material, promptly is fixed on the end of described levigate end 315.
As shown in Figure 3, the described part 31 that melts comprises a bending section 313, and it is by described shape-memory wire 34 crooked formations.The bending of described bending section 313 and size, those skilled in the art can determine according to the shape and size of pulmonary vein or pulmonary vein chamber, can be any suitable structure.In this utility model, preferred, described bending section 313 is a helical structure, and its bending can be supported by described shape-memory wire 34 and constitute.
The left view that shown in Figure 6 is according to ablation system among Fig. 1 10.The left side projection view of described expanding stent 15 is circular, and its diameter is 20-25mm.In the front projection view of described expanding stent 15, as Fig. 1, Fig. 2 and shown in Figure 3, its length is 20-30mm.
As Fig. 2, Fig. 3, Fig. 5 and shown in Figure 6, the proximal end of described elasticity head end pipe 311 is provided with aperture 32, and described aperture 32 is used for the extension of seal wire 14.Described seal wire 14 can be made by Nitinol or other suitable material, is used for guide support and enters pulmonary vein.The far-end of described seal wire 14 extends in first chamber 35 of described elasticity head end pipe 311 by the central lumen 331 of described catheter body 33, and extends out by described aperture 32.The near-end of described seal wire 14 extends to joystick 17 by second central lumen 331 of described catheter body 33, and extends to the outside of described conduit 10 by joystick 17.
The far-end of described seal wire 14 is provided with expanding stent 15, and described expanding stent 15 comprises far-end, near-end and expansion element 51.The structure of described expanding stent 15 is the parts that are suitable for expanding into from foldable structure expansion structure, is used to put into body cavity, as the pulmonary vein place, plays the effect of support, thereby makes melting that conduit 13 can be stable.Described expanding stent 15 can constitute by described expansion element 51 one-way spirals rotation, also can constitute by described expansion element 51 bidirectional screws rotation.Described one-way spiral rotation is meant described swollen
Described expansion element 51 can be any suitable shape-memory material, and this utility model is preferably nickel-titanium alloy material, and it has shape memory function, makes described expanding stent 15 can return to reservation shape when folding and expansion.According to those skilled in the art's needs, described expansion element 51 can be shaped in advance, this utility model is preferably spiral type, then some preformed expansion elements 51 is fixed to the far-end and the near-end of described expanding stent 15, and its outside can also be with thread-protected tube 52 and 53.This utility model is preferred, and described expansion element 51 can be fixed by bonding or welding.Described thread-protected tube 52 and 53 is enclosed within the end of described some expansion elements 51 respectively, by being adhesively fixed.
When described expanding stent 15 all was positioned at described conduit 13, it was a foldable structure; When pushing described seal wire 14 forward by described joystick 17 when, described expanding stent 15 slowly launches, and when it all launches, the surface of described expanding stent 15 is propped up the pulmonary vein place, thereby can whole ablation system 10 is fixing.By described joystick 17 conduit is delivered to suitable position, orifices of pulmonary veins place again, by rotating described conduit 13, make the described part 31 that melts, and tightly recline, thereby realize melting the pulmonary vein place with described orifices of pulmonary veins in the rotation of pulmonary vein place.
As shown in Figure 1, described joystick 17 comprises handle main body 71, and it has far-end, near-end and one
Single central lumen (not shown).The far-end of described handle main body 71 is connected with joint 72, is used for connecting utricle pipe 14 and joystick 17; The near-end of described joystick 17 is connected with guider 74, is used to guide seal wire 14 to enter joystick 17.Described seal wire 14 extends in the described catheter body by the central lumen of described handle body 71.The near-end of described handle main body 71 also comprises a side opening 75, and the near-end of described lead 38 extends out by described side opening 75, is connected with plug 73.
Preferably, can also comprise that in the central lumen 331 of described catheter body 33 at least one heat sensor 312 extends within it, it can be an occasionally critesistor of thermoelectricity; The quantity of described heat sensor can also be two, three, four or more.As shown in Figure 5, in a preferred embodiment, the far-end of described heat sensor 312 is fixed on the described ablating electrode 16 by bonding, welding or other suitable manner, preferably be bonded in the ablating electrode 16 by heat-conducting glue, the near-end of described heat sensor 312 extends in the central lumen 331 of described catheter body 33 by described the 3rd chamber 37, extend out by described joystick 17 at last, (not shown) links to each other with device for detecting temperature.
According to a preferred implementation of the present utility model, described ablation system 10 before use, described conduit 13 and described seal wire 14 and expanding stent 15 are positioned at described sheath pipe 12.In the use, earlier described sheath pipe 12 is sent into the suitable position of orifices of pulmonary veins, then operate described joystick 17 and push described seal wire 14 forward, described expanding stent 15 and described conduit 13 slowly leave described sheath pipe 12.Described expanding stent 15 slowly launches, and during to its whole expansion, the surface with described expanding stent 15 props up the pulmonary vein place earlier, thereby whole ablation system 10 can be fixed.By described joystick 17 conduit 13 is pushed to suitable position, orifices of pulmonary veins place again, by rotating described conduit 13, make the described part 31 that melts, and tightly recline, thereby realize melting the pulmonary vein place with described orifices of pulmonary veins in the rotation of pulmonary vein place.Melt finish after, operate described joystick 17, described expanding stent 15 slowly is folded into folded state, continue to handle joystick to described conduit 13 and described expanding stent 15 and is retracted to fully in the described sheath pipe 12, and described system 10 is withdrawn from body.
It is described that embodiment of the present utility model is not limited to the foregoing description; under the situation that does not depart from spirit and scope of the present utility model; those of ordinary skills can make various changes and improvements to this utility model in form and details, and these all are considered to fall into protection domain of the present utility model.
Claims (13)
1. an ablation system is characterized in that comprising the sheath pipe with a central lumen, and described central chamber is provided with conduit;
Described conduit comprises catheter body, and it has far-end, near-end and second central lumen, is fixed with at the far-end of described catheter body and melts part, is fixed with joystick at the near-end of described catheter body;
The described part that melts comprises elasticity head end pipe, and it comprises at least one chamber, is provided with shape-memory wire in described at least one chamber, also is provided with an aperture on the described elasticity head end pipe;
Also comprise seal wire and lead in described second central chamber, it extends in the chamber of described elasticity head end pipe by second central lumen, and described seal wire extends to the conduit outside by described aperture; The far-end of described seal wire is provided with expanding stent, and described expanding stent is made of the rotation of expansion element spiral.
2. ablation system according to claim 1 is characterized in that described expanding stent is made of described expansion element one-way spiral rotation.
3. ablation system according to claim 1 is characterized in that described expanding stent is made of described expansion element bidirectional screw rotation.
4. according to claim 1 or 2 or 3 described ablation systems, it is characterized in that described expansion element made by shape-memory material.
5. according to claim 1 or 2 or 3 described ablation systems, it is characterized in that described expansion element is shaped in advance after, by being fixed on the described expanding stent.
6. according to claim 1 or 2 or 3 described ablation systems, the left side projection view that it is characterized in that described expanding stent is for circular, and its diameter is 20-25mm.
7. according to claim 1 or 2 or 3 described ablation systems, it is characterized in that in the orthographic projection view of described expanding stent that its length is 20-30mm.
8. according to claim 1 or 2 or 3 described ablation systems, it is characterized in that the described part that melts comprises a bending section.
9. ablation system according to claim 8 is characterized in that described bending section is a helical structure.
10. ablation system according to claim 9 is characterized in that described bending section supports formation by described shape-memory wire.
11. according to claim 1 or 2 or 3 described ablation systems, it is characterized in that described joystick comprises handle main body, it has far-end, near-end and a single central lumen, the far-end of described handle main body is connected with joint, the near-end of described handle main body is connected with guider, and described seal wire extends in the described catheter body by the central lumen of described handle body.
12. ablation system according to claim 9, it is characterized in that described joystick comprises handle main body, it has far-end, near-end and a single central lumen, the far-end of described handle main body is connected with joint, the near-end of described handle main body is connected with guider, and described seal wire extends in the described catheter body by the central lumen of described handle body.
13. according to claim 1 or 2 or 3 described ablation systems, it is characterized in that the near-end of described handle main body also comprises a side opening, the near-end of described lead extends out by described side opening, is connected with plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205512817U CN201840518U (en) | 2010-09-29 | 2010-09-29 | Melting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205512817U CN201840518U (en) | 2010-09-29 | 2010-09-29 | Melting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201840518U true CN201840518U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205512817U Expired - Lifetime CN201840518U (en) | 2010-09-29 | 2010-09-29 | Melting system |
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| CN (1) | CN201840518U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429721A (en) * | 2010-09-29 | 2012-05-02 | 心诺普医疗技术（北京）有限公司 | Ablation system |
| CN103519882A (en) * | 2012-07-07 | 2014-01-22 | 李莉 | Multi-electrode renal artery ablation catheter |
| CN103860258A (en) * | 2012-12-12 | 2014-06-18 | 北京中孵友信医药科技股份有限公司 | Self-adaptive annular positioning endovascular catheter |
| CN104812297A (en) * | 2012-08-31 | 2015-07-29 | 阿库图森医疗有限公司 | Catheter system and methods of medical uses of same, including diagnostic and treatment uses for heart |
| CN107157576A (en) * | 2012-05-11 | 2017-09-15 | 美敦力Af卢森堡有限责任公司 | Renal nerve conditioning system for the processing of human patientses |
| WO2021143832A1 (en) * | 2019-02-03 | 2021-07-22 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation catheter having function of moving guide wire |
-
2010
- 2010-09-29 CN CN2010205512817U patent/CN201840518U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102429721A (en) * | 2010-09-29 | 2012-05-02 | 心诺普医疗技术（北京）有限公司 | Ablation system |
| CN102429721B (en) * | 2010-09-29 | 2015-08-26 | 心诺普医疗技术（北京）有限公司 | A kind of ablation system |
| CN107157576A (en) * | 2012-05-11 | 2017-09-15 | 美敦力Af卢森堡有限责任公司 | Renal nerve conditioning system for the processing of human patientses |
| CN107157576B (en) * | 2012-05-11 | 2019-11-26 | 美敦力Af卢森堡有限责任公司 | The renal nerve conditioning system of processing for human patients |
| CN103519882A (en) * | 2012-07-07 | 2014-01-22 | 李莉 | Multi-electrode renal artery ablation catheter |
| CN104812297A (en) * | 2012-08-31 | 2015-07-29 | 阿库图森医疗有限公司 | Catheter system and methods of medical uses of same, including diagnostic and treatment uses for heart |
| CN103860258A (en) * | 2012-12-12 | 2014-06-18 | 北京中孵友信医药科技股份有限公司 | Self-adaptive annular positioning endovascular catheter |
| WO2021143832A1 (en) * | 2019-02-03 | 2021-07-22 | 上海魅丽纬叶医疗科技有限公司 | Radio frequency ablation catheter having function of moving guide wire |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 101111 Beijing branch of Beijing economic and Technological Development Zone Street No. 100 block C Patentee after: Synpatic Medical Technology (Beijing) Co., Ltd. Address before: 100085, 1 floor, building 1, No. four, 3 Street, Beijing, Haidian District Patentee before: Synpatic Medical Technology (Beijing) Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110525 |
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| CX01 | Expiry of patent term |