CN201533841U - Multi-cavity electrophysiology electrode catheter - Google Patents
Multi-cavity electrophysiology electrode catheter Download PDFInfo
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- CN201533841U CN201533841U CN2009202224124U CN200920222412U CN201533841U CN 201533841 U CN201533841 U CN 201533841U CN 2009202224124 U CN2009202224124 U CN 2009202224124U CN 200920222412 U CN200920222412 U CN 200920222412U CN 201533841 U CN201533841 U CN 201533841U
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- cavity
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- central lumen
- catheter body
- electricity physiological
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Abstract
The utility model discloses a multi-cavity electrophysiology electrode catheter, which includes a catheter body with a far end and a near end. An ablation part is arranged at the far end of the catheter body, a control handle is arranged at the near end of the catheter body, and the catheter body includes a center cavity chamber and at least one planet cavity chamber, wherein a drawn line extends in the center cavity chamber, and a guide line extends in the planet cavity chamber; and the near ends of the drawn line and the guide line are fixed on the control handle, and the far ends are fixed at the ablation part. The multi-cavity electrophysiology electrode catheter of the utility model reduces the deflection torque of the drawn line, and improves the pushing performance.
Description
Technical field
This utility model relates to a kind of electric physiological electrode conduit, relates to a kind of multi-cavity electricity physiological electrode conduit concretely.
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.
In clinical practice, can be sent to different parts in the heart for making electrode catheter, it preferably can be handled.Steerable electrode catheter is well known at present, and it generally comprises the joystick of being located at the electrode catheter near-end, is used to control the deflection of melting part.A kind of steerable electrode catheter is disclosed as U.S. Pat RE34502, the part that melts that it comprises elongated catheter body, is located at the joystick of catheter body near-end and is located at the catheter body far-end, wherein catheter body comprises a single central lumen, draught line extends axially the central lumen of catheter body, enters then in the off-axis chamber that melts part; Draught line vertically moves with respect to catheter body can cause the deflection of melting part.
But existing steering electrode conduit, its catheter body is generally single chamber structure, and draught line and lead extend in same chamber, with respect to catheter body tractive draught line the time, the excessive phenomenon of deflection moment of torsion can occur.
The utility model content
This utility model provides a kind of multi-cavity electricity physiological electrode conduit, comprise catheter body, it has far-end and near-end, be provided with at the far-end of described catheter body and melt part, near-end in described catheter body is provided with joystick, and described catheter body comprises central lumen and at least one planet chamber, wherein, draught line extends in described central chamber, and lead extends in described planet chamber; The near-end of described draught line and lead is fixed on the joystick, and far-end is fixed on and melts part.
In a preferred implementation of the present utility model, the catheter body of multi-cavity electricity physiological electrode conduit adopts multi-cavity structure, draught line extends in the central chamber of catheter body, lead extends in the planet chamber of catheter body, conduit deflection moment of torsion in use reduces, bending resistance is improved, and pushes performance thereby improved it.
Description of drawings
Fig. 1 is according to multi-cavity electricity physiological electrode guide-tube structure sketch map of the present utility model;
Fig. 2 is the cross-sectional view according to the multi-cavity electricity physiological electrode catheter body of preferred embodiment of the present utility model;
Fig. 3 is an A place structure for amplifying sketch map among Fig. 1;
Fig. 4 is the cutaway view along D-D line shown in Figure 2, expression catheter body and the annexation that melts part;
Fig. 5 is the cutaway view along E-E line shown in Figure 3, and the structural representation of part is melted in expression;
Fig. 6-Figure 11 is the cross-sectional view according to the multi-cavity electricity physiological electrode catheter body of other preferred embodiment of the present utility model.
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 a kind of preferred multi-cavity electricity physiological electrode guide-tube structure sketch map of the present utility model, comprise catheter body 2, it has far-end and near-end, is provided with at the far-end of described catheter body 2 and melts part 3, is provided with joystick 1 at the near-end of described catheter body 2.
Shown in Figure 2 is the cross-sectional view of preferred multi-cavity electricity physiological electrode catheter body among Fig. 1, described catheter body 2 comprises reinforced pipe 6 and is placed in its outside main body pipe 11, described main body pipe 11 is made by the macromolecular material of biocompatibility, preferably, make by polyether block amide, polyurethane or nylon material, its inwall preferably 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 6 comprises central lumen 14 and at least one planet chamber 13, and it 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.
Draught line 7 is preferably made by rustless steel or Nitinol, extends in described central lumen 14, and lead 5 extends in described planet chamber 13.
Described central lumen 14 extends axially catheter body 2, and its diameter can be according to the size of described draught line 7 and difference is preferably 0.2-0.4mm.Preferably, described central lumen 14 is used for the extension of draught line 7.
Described planet chamber 13 is used for the extension of lead 5, described planet chamber 13 be distributed in described central lumen 14 around, its distribution mode those skilled in the art can be provided with as required, it can distribute in any suitable manner around the axle center of central lumen 14, as random distribution or uniform distribution, the present invention is preferred, and described planet chamber 13 is circularly and evenly distributed around the axle center of central lumen 14; The axle center of described planet chamber 13 can one with central lumen 14 concentric circles on, also can deviate from and central lumen 14 concentric circles, preferred, described planet chamber 13 axle center one with central lumen 14 concentric circles on; Those skilled in the art also can be as required, the axle center of described planet chamber 13 is deviated from and central lumen 14 concentric circles on a small quantity, the axle center that makes described planet chamber 13 basically one with central lumen 14 concentric circles on, also can reach same technique effect, and not depart from spirit of the present invention.
The size of described planet chamber 13 can be according to the quantity of lead 5 with thickness and different, the cross section of described planet chamber 13 can be circular, also can be other shape, fan-shaped as the band fillet.When its cross section was circle, its diameter was preferably 0.25-0.8mm, when its cross section for the band fillet fan-shaped the time, it highly is preferably 0.25-0.8mm, the segmental height of described band fillet is meant the spacing between the lower edge.
The quantity of described planet chamber 13 is can be as required different and change, and described planet chamber 13 is at least one, also can be two, three, four, five, six or more.
Shown in Figure 3 is A place structure for amplifying sketch map among Fig. 1; The cutaway view that shown in Figure 4 is along D-D line shown in Figure 2, Fig. 3 and Fig. 4 all show catheter body 2 and melt annexation between the part 3.The far-end of draught line 7 extends to by central lumen 14 and melts in the part 3, the one section draught line 7 that in catheter body 2, extends, preferably, its outside is with incompressible bourdon tube 12, as shown in Figure 4, the outside of described bourdon tube 12 is with the second protective casing (not shown), and it can be made by any suitable material, preferably make, be used for described bourdon tube 12 and extend within it by polyamide material; The far-end of described second protective casing and near-end can be fixed on the described bourdon tube 12 by bonding, welding or other suitable manner, and be preferred, is bonded on the described bourdon tube 12 by ultraviolet curing glue; The one section draught line 7 that in described elasticity head end pipe 10, extends, preferred, its outside is with first protective casing 16; it can be made by any suitable material; preferably made by polytetrafluoroethylmaterial material, it is located in the described elasticity head end pipe 10, is used for described draught line 7 and extends within it.
Preferably, the near-end of described elasticity head end pipe 10 is levigate end 9, as shown in Figure 3 and Figure 4, its external diameter matches with the internal diameter of catheter body 2, described levigate end 9 is inserted in the catheter body 2, it can be fixed by bonding, welding or other suitable manner, and is preferred, by ultraviolet curing glue that itself and catheter body 2 bondings is fixing.
Preferably, be provided with one section connection tube 15 at described elasticity head end pipe 10 with described main body pipe 11 junctions, as shown in Figure 4, it can be made by any suitable material, is preferably made by polytetrafluoroethylmaterial material; Described connection tube 15 is used for being connected between described main body pipe 11 and the described elasticity head end pipe 10, and its hardness is between described main body pipe 11 and described elasticity head end pipe 10; Described draught line 7 and lead 5 extend in described connection tube 15, and preferred, the outside of described lead 5 is provided with thread-protected tube 8.
The cutaway view that shown in Figure 5 is along E-E line shown in Figure 2, the structural representation of part is melted in expression; Preferably, the described part 3 that melts comprises elasticity head end pipe 10, it can be made by biocompatible materials, comprise far-end, near-end, the first eccentric chamber 22 and the second eccentric chamber 23, the far-end of described elasticity head end pipe 10 is provided with ablating electrode 18, and is being provided with ring electrode 4 on the length direction of elasticity head end pipe 10, and its quantity can be according to actual needs and different, at least comprising one, also can be two, three, four or more.
Preferably, described ablating electrode 18 comprises endoporus 24, and the far-end of its near-end and elasticity head end pipe 10 can be fixed by bonding, welding or other suitable manner, and is preferred, fixes by the ultraviolet curing glue bond.
Preferably, in the eccentric chamber 23 of the remote extension to the second of described draught line 7, its far-end is fixed on the elasticity head end pipe 10, fixing means as shown in Figure 5, at first, groove is set, will hook pipe 20 be crimped on the far-end of draught line 7 at the far-end of elasticity head end pipe 10, be welded with hook 19 on the described hook pipe 10, described hook 19 also can be integrally formed with hook pipe 20; The far-end that will be crimped with the draught line 7 of hook pipe 20 and hook 19 then places in the groove of elasticity head end pipe 10 far-ends, and by inject ultraviolet curing glue in groove it is fixed.
Preferably, the remote extension of lead 5 as shown in Figure 4 and Figure 5, is electrically connected with ablating electrode 18 and ring electrode 4 respectively to the first eccentric chamber 22 of elasticity head end pipe 10.
Preferably, comprise also that in described at least one planet chamber 13 at least one heat sensor 17 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, it can adopt any suitable manner to be arranged at least one described planet chamber 13, and at least one heat sensor 17 is separately positioned on and also can be arranged at least one described planet chamber 13 at least one described planet chamber 13 simultaneously as described; As shown in Figure 4 and Figure 5, in a preferred embodiment, on ablating electrode 18, be fixed with heat sensor 17, the far-end of described heat sensor 17 can be fixed by bonding, welding or other suitable manner, preferably be bonded in the endoporus 24 of ablating electrode 18 by heat-conducting glue, the near-end of described heat sensor 17 extends in one of them planet chamber 13 of reinforced pipe 6 by the first eccentric chamber 22 of elasticity head end pipe 10, extend out by joystick at last, (not shown) links to each other with device for detecting temperature.
Shown in Figure 6 is the embodiment of the preferred catheter body of another kind of the present utility model, described reinforced pipe 6 comprises two planet chambers 13 and a central lumen 14, preferably, the axle center of described two planet chambers 13 one with central lumen 14 concentric circles on, and be circularly and evenly distributed around the axle center of central lumen 14.
Described draught line 7 extends in described central lumen 14, and described lead 5 extends in planet chamber 13.
Shown in Figure 7 is the embodiment of another preferred catheter body of the present utility model, described reinforced pipe 6 comprises three planet chambers 13 and a central lumen 14, preferably, the axle center of described three planet chambers 13 one with central lumen 14 concentric circles on, and be circularly and evenly distributed around the axle center of central lumen 14.
Described draught line 7 extends in described central lumen 14, and described lead 5 extends in planet chamber 13, and described heat sensor 17 extends in a planet chamber 13 therein.
Shown in Figure 8 is the embodiment of another preferred catheter body of the present utility model, described reinforced pipe 6 comprises four planet chambers 13 and a central lumen 14, preferably, the axle center of described four planet chambers 13 one with central lumen 14 concentric circles on, and be circularly and evenly distributed around the axle center of central lumen 14.
Described draught line 7 extends in described central lumen 14, and described lead 5 extends in planet chamber 13, and is preferred, and described heat sensor 17 extends in a planet chamber 13 therein.
Shown in Figure 9 is the embodiment of another preferred catheter body of the present utility model, described reinforced pipe 6 comprises six planet chambers 13 and a central lumen 14, the axle center of described six planet chambers 13 one with central lumen 14 concentric circles on, and be circularly and evenly distributed around the axle center of central lumen 14.
Described draught line 7 extends in described central lumen 14, and described lead 5 extends in planet chamber 13, and is preferred, and described heat sensor 17 extends in a planet chamber 13 therein.
Shown in Figure 10 is the embodiment of another preferred catheter body of the present utility model, and described reinforced pipe 6 comprises eight planet chambers 13 and a central lumen 14, preferred, described eight planet chambers 13
The axle center one with central lumen 14 concentric circles on, and be circularly and evenly distributed around the axle center of central lumen 14.
Described draught line 7 extends in described central lumen 14, and described lead 5 extends in planet chamber 13, and is preferred, and described heat sensor 17 extends in a planet chamber 13 therein.
Shown in Figure 11 is the embodiment of another preferred catheter body of the present utility model, described reinforced pipe 6 comprises 3 planet chambers 13 and a central lumen 14, preferably, the axle center of described 3 planet chambers 13 one with central lumen 14 concentric circles on, and the axle center around central lumen 14 is circularly and evenly distributed, preferably, the cross section of described planet chamber 13 is for being with the fan-shaped of fillet.
Described draught line 7 extends in described central lumen 14, and described lead 5 extends in planet chamber 13, and is preferred, and described heat sensor 17 extends in a planet chamber 13 therein.
The structure of joystick 1 described in the utility model can adopt any suitable structure well known to those skilled in the art, as laid-open U.S. Patents US6221070, and the structure of the joystick that discloses among US7300438 and the US6571131.
The near-end of described draught line 7 is fixed on the described joystick 1, and its fixing means can adopt any suitable method well known to those skilled in the art to fix.The fixing means of the draught line that has disclosed among laid-open U.S. Patents US7300438 and the US6571131 for example.
The near-end of described lead 5 is fixed on the described joystick 1, and its fixing means can adopt any suitable method well known to those skilled in the art to fix.For example be fixed by welding on the corresponding plug.
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. multi-cavity electricity physiological electrode conduit, it is characterized in that, comprise catheter body, it has far-end and near-end, be provided with at the far-end of described catheter body and melt part, be provided with joystick at the near-end of described catheter body, described catheter body comprises central lumen and at least one planet chamber, wherein, draught line extends in described central chamber; Lead extends in described planet chamber; The near-end of described draught line and lead is fixed on the joystick, and far-end is fixed on and melts part.
2. multi-cavity electricity physiological electrode conduit according to claim 1 is characterized in that the quantity of described planet chamber is two, three, four, five, six or more.
3. multi-cavity according to claim 1 and 2 electricity physiological electrode conduit is characterized in that described central lumen extends axially catheter body, described at least one planet chamber be distributed in described central lumen around.
4. multi-cavity according to claim 1 and 2 electricity physiological electrode conduit is characterized in that, the axle center of described at least two planet chambers one with the concentric circle of central lumen on, and be circularly and evenly distributed around the axle center of central lumen.
5. multi-cavity according to claim 3 electricity physiological electrode conduit is characterized in that, the axle center of described at least two planet chambers one with the concentric circle of central lumen on, and be circularly and evenly distributed around the axle center of central lumen.
6. multi-cavity electricity physiological electrode conduit according to claim 1 and 2 is characterized in that the cross section of described planet chamber is circular or is with the fan-shaped of fillet.
7. multi-cavity electricity physiological electrode conduit according to claim 6 is characterized in that the diameter of described central lumen is 0.2-0.4mm; When the cross section of described planet chamber was circular, its diameter was 0.25-0.8mm, and when its cross section during for band fillet fan-shaped, it highly is 0.25-0.8mm.
8. multi-cavity electricity physiological electrode conduit according to claim 1 and 2 is characterized in that, comprises that also at least one heat sensor extends in described at least one planet chamber.
9. multi-cavity electricity physiological electrode conduit according to claim 8 is characterized in that the quantity of described heat sensor is two, three, four or more.
10. multi-cavity electricity physiological electrode conduit according to claim 3 is characterized in that, comprises that also at least one heat sensor extends in described at least one planet chamber.
11. multi-cavity electricity physiological electrode conduit according to claim 1 and 2, it is characterized in that, described catheter body comprises main body pipe and reinforced pipe, wherein said main body pipe box is in the outside of described reinforced pipe, described main body pipe and reinforced pipe are made by the macromolecular material of biocompatibility, and the inwall of described main body pipe comprises one deck wire braid at least.
12. multi-cavity electricity physiological electrode conduit according to claim 1 and 2, it is characterized in that, the described part that melts comprises elasticity head end pipe, be provided with one section connection tube at described elasticity head end pipe and described main body pipe junction, described draught line and lead extend within it, and described lead outside is provided with thread-protected tube.
13. multi-cavity electricity physiological electrode conduit according to claim 12, it is characterized in that, the one section draught line that in joystick and catheter body, extends, its outside is with bourdon tube, the one section draught line that in elasticity head end pipe, extends, its outside is with first protective casing; And the outside of described bourdon tube is with second protective casing, and its end is fixed on the described bourdon tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202224124U CN201533841U (en) | 2009-09-08 | 2009-09-08 | Multi-cavity electrophysiology electrode catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202224124U CN201533841U (en) | 2009-09-08 | 2009-09-08 | Multi-cavity electrophysiology electrode catheter |
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| Publication Number | Publication Date |
|---|---|
| CN201533841U true CN201533841U (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202224124U Expired - Lifetime CN201533841U (en) | 2009-09-08 | 2009-09-08 | Multi-cavity electrophysiology electrode catheter |
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| CN (1) | CN201533841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008301B (en) * | 2009-09-08 | 2014-07-02 | 心诺普医疗技术（北京）有限公司 | Multicavity electrophysiological electrode catheter |
| CN105361943A (en) * | 2014-08-27 | 2016-03-02 | 上海安通医疗科技有限公司 | Catheter device for adjusting nerves |
-
2009
- 2009-09-08 CN CN2009202224124U patent/CN201533841U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008301B (en) * | 2009-09-08 | 2014-07-02 | 心诺普医疗技术（北京）有限公司 | Multicavity electrophysiological electrode catheter |
| CN105361943A (en) * | 2014-08-27 | 2016-03-02 | 上海安通医疗科技有限公司 | Catheter device for adjusting nerves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multicavity electrophysiological electrode catheter Effective date of registration: 20101222 Granted publication date: 20100728 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2010990001019 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20111223 Granted publication date: 20100728 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2010990001019 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multicavity electrophysiological electrode catheter Effective date of registration: 20120105 Granted publication date: 20100728 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2012990000008 |
|
| 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, 2 floor, building 1, No. four, 3 Street, Beijing, Haidian District Patentee before: Synpatic Medical Technology (Beijing) Co., Ltd. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140905 Granted publication date: 20100728 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2012990000008 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20140905 Registration number: 2012990000008 Pledgee after: Zhongguancun Beijing technology financing Company limited by guarantee Pledgee before: Zhongguancun Beijing science and technology Company limited by guarantee |
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| CX01 | Expiry of patent term |
Granted publication date: 20100728 |
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| CX01 | Expiry of patent term |