CN104068930A - Renal denervation ablation catheter with pre-bent catheter body - Google Patents
Renal denervation ablation catheter with pre-bent catheter body Download PDFInfo
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- CN104068930A CN104068930A CN201410244704.3A CN201410244704A CN104068930A CN 104068930 A CN104068930 A CN 104068930A CN 201410244704 A CN201410244704 A CN 201410244704A CN 104068930 A CN104068930 A CN 104068930A
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Abstract
The invention discloses a renal denervation ablation catheter with a pre-bent catheter body. The ablation catheter comprises a main catheter body, an electrode, a handle, an electric wire and an electric terminal; the two ends of the main catheter body are connected with the electrode and the handle, respectively; the main catheter body is provided with a tubular cavity and a tubular wall; the electric wire goes through the tubular cavity of the catheter body, and one end of the electric wire is electrically connected with the electrode, while the other end of the electric wire is electrically connected with the electric wire of the electric terminal after going through the handle; one end, close to the electrode, of the main catheter body is a far end of the main catheter body, and an in-catheter shape memory metal wire is inserted in the tubular wall of the far end in the axial direction of the main catheter body and provided with a bent part; after the in-catheter shape memory metal wire is inserted in the tubular wall so that the far end of the main catheter body is provided with a bent far-end pre-bent catheter section, and the bent far-end pre-bent catheter section is capable of providing reliable and controllable curvature. The ablation catheter is simple to operate, easy to manufacture, and capable of providing reliable curvature.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically refer to a kind of have bend in advance body remove renal artery sympathetic nerve ablation catheter.
Background technology
Go renal artery sympathetic nerve art (RDN) to cause widely and paid close attention to as the non-drug therapy means for the treatment of refractory hypertension through conduit in recent years, because kidney sympathetic nerve excessive activation is hypertension incidence and the important pathophysiological basis maintaining, and kidney sympathetic fiber enters the kidney overwhelming majority through main renal artery adventitia, this anatomical features has determined that RDN alternative melts most of kidney sympathetic fiber.The energy discharging by the radiofrequency catheter of insertion renal artery blood vessel can be through outside blood vessel, middle film, and selectivity damages the sympathetic fiber of adventitia, reduces thereby reach the object that kidney sympathetic activity reduces blood pressure.
Implementing RDN operation needs first ablation catheter to be pushed in the renal artery blood vessel of a side by guiding catheter, the electrode of distal end of catheter is close to renal artery tunica intima, determine whether to put in place by electrode induced impedance, when detecting that starting low-power radio frequency energy after enough impedances progressively heats up electrode, reaches while melting the temperature setting and starts to melt.The renal artery sympathetic nerve ablation catheter that goes of clinical practice mostly at present is the unipolar conduit of single head, conventionally applies flexible body, uses operating grip to realize the bending of body.
Patent documentation ZL2011103212304 discloses one and has removed renal artery sympathetic nerve radio frequency ablation catheter, comprise joystick 1, main paragraph 2, can curved segment 3 and electrode 4, wherein bracing wire extends through catheter interior and by joystick control, this conduit also comprises last straight section, electrode 4 is fixed on last straight section, the far-end of last straight section is at one end fixed in bracing wire, and bracing wire is arranged to the axis along described conduit, bracing wire last straight section and can curved segment in extend at homonymy not.This conduit is controlled bracing wire by control operation handle, and can make can curved segment bending.This ablation catheter is mainly the degree of crook of controlling body with bracing wire and handle, can clearly find out from Fig. 3 A, Fig. 3 B, and electrode 4 is hemispherical, can not ensure to have enough contacts area between electrode 4 and renal artery tunica intima.
Following two shortcomings of existing flexible ablation catheter ubiquity:
1, doctor controls degree of crook certain randomness.
2, this conduit utilizes wire drawing to carry out bending body, so guide-tube structure complexity will be accomplished such as the pipe with small pipe diameter of 4F very difficult.
Therefore, be necessary to develop one and can reliably control degree of crook, again the renal artery ablation catheter that is easy to manufacture simple in structure.
Summary of the invention
The object of this invention is to provide a kind of have bend in advance body remove renal artery sympathetic nerve ablation catheter, this ablation catheter is simple to operate, be easy to manufacture, and reliable degree of crook can be provided.
Above-mentioned purpose of the present invention realizes by following technical solution: a kind of have bend in advance body remove renal artery sympathetic nerve ablation catheter, this ablation catheter comprises main pipe, electrode, hands handle, electric wire and electric connection, described main pipe's two ends are connected with handle with electrode respectively, described main pipe has tube chamber and tube wall, described electric wire interts in main pipe's tube chamber, one end of electric wire is connected with electrode, the other end is connected with electric connection electric wire through after handle, it is characterized in that: the far-end that described main pipe is main pipe near one end of electrode, the tube wall of far-end is interior along the interspersed intracanalicular type shape memory wire of main pipe's axial direction, described intracanalicular type shape memory wire has kink, the far-end that makes main pipe's far-end form bending after described intracanalicular type shape memory wire plug-in mounting bends pipeline section in advance, described far-end bends pipeline section in advance can provide reliable controlled flexibility, described far-end bend in advance pipeline section under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
Ablation catheter key of the present invention is far-end to be bent to pipeline section in advance make bending, so that reliable controlled flexibility to be provided, the curved shape that far-end bends pipeline section in advance according to the rigidity of arteriorenal shape, size and intracanalicular type shape memory wire by calculating and test acquisition.
Ablation catheter of the present invention needs just can stretch under external force, body is stretched and can adopt following two kinds of parts to realize:
Described ablation catheter also comprises rigid metal silk in a body, in this body, rigid metal silk is used for inserting main pipe's tube chamber or extracts out from main pipe's tube chamber in the time that ablation catheter uses, make far-end bend in advance pipeline section and sentence respectively straight configuration or bending state, to adapt to different needs.
Described ablation catheter also comprises the outer rigidity sheath pipe of a body, the outer rigidity sheath pipe of this body is used for being set with main pipe or detaches from main pipe in the time that ablation catheter uses, make far-end bend in advance pipeline section and sentence respectively straight configuration or bending state, to adapt to different needs.
In the present invention, intracanalicular type shape memory wire can adopt following various structures, has various structures shape thereby make far-end bend in advance pipeline section, and it is consistent with the shape of intracanalicular type shape memory wire that far-end bends the shape that pipeline section presents in advance.
Structure one: the bending section that one end of described intracanalicular type shape memory wire is arc, the other end is straightway, this bending section has bending angle α, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed arc pipeline section, the crooked radian that far-end bends pipeline section is in advance identical with the crooked radian of intracanalicular type shape memory wire bending section.Described bending angle α is within the scope of 15 °～45 °.
Structure two: the two ends of described intracanalicular type shape memory wire are the bending section that straightway, middle part are arc, the straightway at two ends is located on the same line, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed arc pipeline section, the crooked radian that far-end bends pipeline section is in advance identical with the crooked radian of intracanalicular type shape memory wire bending section.
Structure three: the two ends of described intracanalicular type shape memory wire are the bending section that straightway, middle part are arc, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed arc pipeline section, the crooked radian that far-end bends pipeline section is in advance identical with the crooked radian of intracanalicular type shape memory wire bending section.
Structure four: the two ends of described intracanalicular type shape memory wire are the oblique line section that straightway, middle part are oblique setting, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed oblique line pipeline section, it is identical with the angle of inclination of intracanalicular type shape memory wire oblique line section that far-end bends the angle of inclination of pipeline section in advance.In the present invention, it is arc pipeline section that described far-end bends pipeline section in advance, has bending angle α, and this bending angle α is within the scope of 15 °～45 °.
Structure five: described intracanalicular type shape memory wire one end is straightway, the other end is the spiral section of waveform, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed pigtail, far-end bends the spiral-shaped identical of the spiral-shaped of pipeline section and intracanalicular type shape memory wire spiral section in advance.
In the present invention, the material of described intracanalicular type shape memory wire is Ultimum Ti.
As improvement of the present invention: described ablation catheter also has temperature sensor, and the embedded center that is arranged on electrode of described temperature sensor, for the temperature of sensing renal artery tunica intima.
Compared with prior art, ablation catheter of the present invention creatively bends in advance pipeline section far-end and makes bending, and reliable flexibility can be provided, again simple in structure, be easy to manufacture.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
Fig. 1 is the overall structure schematic diagram of ablation catheter embodiment mono-of the present invention;
Fig. 2 is the partial structurtes schematic diagram of ablation catheter embodiment mono-of the present invention;
Fig. 3 is the partial structurtes schematic diagram of ablation catheter embodiment mono-of the present invention, and now conduit is in straight configuration;
Fig. 4 is the partial structurtes schematic diagram of ablation catheter embodiment mono-of the present invention, and now conduit is in bending state;
Fig. 5 is the structure chart of intracanalicular type shape memory wire in ablation catheter embodiment mono-of the present invention;
Fig. 6 is the structure chart of intracanalicular type shape memory wire in ablation catheter embodiment bis-of the present invention;
Fig. 7 is the structure chart of intracanalicular type shape memory wire in ablation catheter embodiment tri-of the present invention;
Fig. 8 is the structure chart of intracanalicular type shape memory wire in ablation catheter embodiment tetra-of the present invention;
Fig. 9 is the structure chart of intracanalicular type shape memory wire in ablation catheter embodiment five of the present invention;
Figure 10 is the structure chart of intracanalicular type shape memory wire in ablation catheter embodiment six of the present invention;
Figure 11 is the partial structurtes schematic diagram of ablation catheter embodiment seven of the present invention;
Figure 12 is the using state reference diagram of ablation catheter embodiment seven of the present invention.
Description of reference numerals
1 main pipe; 11, tube chamber; 12, tube wall; 13, far-end bends pipeline section in advance; 2, electrode;
3, intracanalicular type shape memory wire; 3a, intracanalicular type shape memory wire;
3b, intracanalicular type shape memory wire; 3c, intracanalicular type shape memory wire;
3d, intracanalicular type shape memory wire; 3e, intracanalicular type shape memory wire;
4, rigid metal silk in body; 5, hands handle; 6, electric wire;
7, electric connection; 8, the outer rigidity sheath pipe of body; 100, renal artery; 200, aorta
Detailed description of the invention
Embodiment mono-
The present invention is a kind of have bend in advance body the embodiment mono-that removes renal artery sympathetic nerve ablation catheter as shown in Figures 1 to 5, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3 of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3 is Ultimum Ti, intracanalicular type shape memory wire 3 has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3 plug-in mountings bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3 is by calculating and test acquisition, as a kind of structure wherein, as Fig. 2, shown in Fig. 5, the bending section that one end of intracanalicular type shape memory wire 3 is arc, the other end is straightway, this bending section has bending angle α, this bending angle α is 30 °, after intracanalicular type shape memory wire 3 plug-in mountings, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3 bending sections, there is identical bending angle α.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, ablation catheter also comprises rigid metal silk 4 in a body, in this body, rigid metal silk 4 is used for inserting main pipe 1 tube chamber 11 or extracting out from main pipe 1 tube chamber 11 in the time that ablation catheter uses, make far-end bend in advance pipeline section 13 and sentence respectively straight configuration or bending state, to adapt to different needs.Far-end bend in advance pipeline section 13 in naturalness in bending state.As shown in Figure 3, when rigid metal silk 4 in body inserts main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and stretches; As shown in Figure 4, when rigid metal silk 4 in body detaches from main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the bending angle α of intracanalicular type shape memory wire 3 bending sections can be within the scope of 15 °～45 ° value.The shape of intracanalicular type shape memory wire 3 can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment bis-
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter bis-that bends in advance body and the difference of embodiment mono-and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3a of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3a is Ultimum Ti, intracanalicular type shape memory wire 3a has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3a plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3a is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 6, the two ends of intracanalicular type shape memory wire 3a are straightway, middle part is the bending section of arc, the straightway at two ends is located on the same line, after intracanalicular type shape memory wire 3a plug-in mounting, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3a bending section.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, ablation catheter also comprises rigid metal silk 4 in a body, in this body, rigid metal silk 4 is used for inserting main pipe 1 tube chamber 11 or extracting out from main pipe 1 tube chamber 11 in the time that ablation catheter uses, make far-end bend in advance pipeline section 13 and sentence respectively straight configuration or bending state, to adapt to different needs.Far-end bend in advance pipeline section 13 in naturalness in bending state.When rigid metal silk 4 in body inserts main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and stretches; When rigid metal silk 4 in body detaches from main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3a can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment tri-
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter tri-that bends in advance body and the difference of embodiment mono-and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3b of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3b is Ultimum Ti, intracanalicular type shape memory wire 3b has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3b plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3b is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 7, the bending section that the termination of one end of intracanalicular type shape memory wire 3b is arc, the other end is straightway, the curved shape of this bending section is slightly different from the curved shape in embodiment mono-, after intracanalicular type shape memory wire 3 plug-in mountings, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3 bending sections.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, ablation catheter also comprises rigid metal silk 4 in a body, in this body, rigid metal silk 4 is used for inserting main pipe 1 tube chamber 11 or extracting out from main pipe 1 tube chamber 11 in the time that ablation catheter uses, make far-end bend in advance pipeline section 13 and sentence respectively straight configuration or bending state, to adapt to different needs.Far-end bend in advance pipeline section 13 in naturalness in bending state.When rigid metal silk 4 in body inserts main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and stretches; When rigid metal silk 4 in body detaches from main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3b can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment tetra-
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter tetra-that bends in advance body and the difference of embodiment mono-and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3c of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3c is Ultimum Ti, intracanalicular type shape memory wire 3c has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3c plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3c is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 8, the two ends of intracanalicular type shape memory wire 3c are straightway, middle part is the bending section of arc, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after intracanalicular type shape memory wire 3c plug-in mounting, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3c bending section.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, ablation catheter also comprises rigid metal silk 4 in a body, in this body, rigid metal silk 4 is used for inserting main pipe 1 tube chamber 11 or extracting out from main pipe 1 tube chamber 11 in the time that ablation catheter uses, make far-end bend in advance pipeline section 13 and sentence respectively straight configuration or bending state, to adapt to different needs.Far-end bend in advance pipeline section 13 in naturalness in bending state.When rigid metal silk 4 in body inserts main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and stretches; When rigid metal silk 4 in body detaches from main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3c can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment five
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter five that bends in advance body and the difference of embodiment mono-and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3d of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3d is Ultimum Ti, intracanalicular type shape memory wire 3d has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3d plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3d is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 9, the two ends of intracanalicular type shape memory wire 3d are straightway, middle part is the oblique line section of oblique setting, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after intracanalicular type shape memory wire 3d plug-in mounting, make far-end bend in advance pipeline section 13 and formed oblique line pipeline section, it is identical with the angle of inclination of intracanalicular type shape memory wire 3d oblique line section that far-end bends the angle of inclination of pipeline section 13 in advance.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, ablation catheter also comprises rigid metal silk 4 in a body, in this body, rigid metal silk 4 is used for inserting main pipe 1 tube chamber 11 or extracting out from main pipe 1 tube chamber 11 in the time that ablation catheter uses, make far-end bend in advance pipeline section 13 and sentence respectively straight configuration or bending state, to adapt to different needs.Far-end bend in advance pipeline section 13 in naturalness in bending state.When rigid metal silk 4 in body inserts main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and stretches; When rigid metal silk 4 in body detaches from main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3d can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment six
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter six that bends in advance body and the difference of embodiment mono-and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3e of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3e is Ultimum Ti, intracanalicular type shape memory wire 3e has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3e plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, the curved shape that far-end bends pipeline section 13 in advance according to the rigidity of arteriorenal shape, size and intracanalicular type shape memory wire 3e by calculating and test acquisition, as a kind of structure wherein, as shown in figure 10, intracanalicular type shape memory wire 3e one end is straightway, the other end is the spiral section of waveform, after intracanalicular type shape memory wire 3e plug-in mounting, make far-end bend in advance pipeline section 13 and formed pigtail, far-end bends the spiral-shaped identical of the spiral-shaped of pipeline section 13 and intracanalicular type shape memory wire spiral section 3e in advance.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, ablation catheter also comprises rigid metal silk 4 in a body, in this body, rigid metal silk 4 is used for inserting main pipe 1 tube chamber 11 or extracting out from main pipe 1 tube chamber 11 in the time that ablation catheter uses, make far-end bend in advance pipeline section 13 and sentence respectively straight configuration or bending state, to adapt to different needs.Far-end bend in advance pipeline section 13 in naturalness in bending state.When rigid metal silk 4 in body inserts main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and stretches; When rigid metal silk 4 in body detaches from main pipe 1 tube chamber 11, far-end bends in advance pipeline section 13 and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3e can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment seven
The present invention is a kind of has the embodiment seven that removes renal artery sympathetic nerve ablation catheter that bends in advance body as shown in Figure 11, Figure 12, different with embodiment mono-, in this embodiment with rigid metal silk 4 in the body in outer rigidity sheath pipe 8 alternate embodiments one of body.
This ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3 of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3 is Ultimum Ti, intracanalicular type shape memory wire 3 has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3 plug-in mountings bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3 is by calculating and test acquisition, as a kind of structure wherein, as Fig. 2, shown in Fig. 5, the bending section that one end of intracanalicular type shape memory wire 3 is arc, the other end is straightway, this bending section has bending angle α, this bending angle α is 30 °, after intracanalicular type shape memory wire 3 plug-in mountings, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3 bending sections, there is identical bending angle α.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, described ablation catheter comprises the outer rigidity sheath pipe 8 of a body, the outer rigidity sheath pipe 8 of this body is used for being set with main pipe 1 or detaches from main pipe 1 in the time that ablation catheter uses, and makes far-end bend in advance pipeline section 13 and sentences respectively straight configuration or bending state, to adapt to different needs.The outer rigidity sheath pipe 8 of body can add tinsel netting with nylon composite materials and strengthen structure.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the bending angle α of intracanalicular type shape memory wire 3 bending sections can be within the scope of 15 °～45 ° value.The shape of intracanalicular type shape memory wire 3 can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment eight
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter eight that bends in advance body and the difference of embodiment seven and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3a of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3a is Ultimum Ti, intracanalicular type shape memory wire 3a has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3a plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3a is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 6, the two ends of intracanalicular type shape memory wire 3a are straightway, middle part is the bending section of arc, the straightway at two ends is located on the same line, after intracanalicular type shape memory wire 3a plug-in mounting, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3a bending section.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, described ablation catheter comprises the outer rigidity sheath pipe 8 of a body, the outer rigidity sheath pipe 8 of this body is used for being set with main pipe 1 or detaches from main pipe 1 in the time that ablation catheter uses, and makes far-end bend in advance pipeline section 13 and sentences respectively straight configuration or bending state, to adapt to different needs.The outer rigidity sheath pipe 8 of body can add tinsel netting with nylon composite materials and strengthen structure.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3a can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment nine
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter nine that bends in advance body and the difference of embodiment seven and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3b of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3b is Ultimum Ti, intracanalicular type shape memory wire 3b has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3b plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3b is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 7, the bending section that the termination of one end of intracanalicular type shape memory wire 3b is arc, the other end is straightway, the curved shape of this bending section is slightly different from the curved shape in embodiment six, after intracanalicular type shape memory wire 3 plug-in mountings, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3 bending sections.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, described ablation catheter comprises the outer rigidity sheath pipe 8 of a body, the outer rigidity sheath pipe 8 of this body is used for being set with main pipe 1 or detaches from main pipe 1 in the time that ablation catheter uses, and makes far-end bend in advance pipeline section 13 and sentences respectively straight configuration or bending state, to adapt to different needs.The outer rigidity sheath pipe 8 of body can add tinsel netting with nylon composite materials and strengthen structure.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3b can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment ten
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter ten that bends in advance body and the difference of embodiment seven and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3c of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3c is Ultimum Ti, intracanalicular type shape memory wire 3c has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3c plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3c is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 8, the two ends of intracanalicular type shape memory wire 3c are straightway, middle part is the bending section of arc, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after intracanalicular type shape memory wire 3c plug-in mounting, make far-end bend in advance pipeline section 13 and formed arc pipeline section, the crooked radian that far-end bends pipeline section 13 is in advance identical with the crooked radian of intracanalicular type shape memory wire 3c bending section.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, described ablation catheter comprises the outer rigidity sheath pipe 8 of a body, the outer rigidity sheath pipe 8 of this body is used for being set with main pipe 1 or detaches from main pipe 1 in the time that ablation catheter uses, and makes far-end bend in advance pipeline section 13 and sentences respectively straight configuration or bending state, to adapt to different needs.The outer rigidity sheath pipe 8 of body can add tinsel netting with nylon composite materials and strengthen structure.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3c can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment 11
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter 11 that bends in advance body and the difference of embodiment seven and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3d of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3d is Ultimum Ti, intracanalicular type shape memory wire 3d has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3d plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, far-end bends the curved shape of pipeline section 13 in advance according to arteriorenal shape, the rigidity of size and intracanalicular type shape memory wire 3d is by calculating and test acquisition, as a kind of structure wherein, as shown in Figure 9, the two ends of intracanalicular type shape memory wire 3d are straightway, middle part is the oblique line section of oblique setting, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after intracanalicular type shape memory wire 3d plug-in mounting, make far-end bend in advance pipeline section 13 and formed oblique line pipeline section, it is identical with the angle of inclination of intracanalicular type shape memory wire 3d oblique line section that far-end bends the angle of inclination of pipeline section 13 in advance.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, described ablation catheter comprises the outer rigidity sheath pipe 8 of a body, the outer rigidity sheath pipe 8 of this body is used for being set with main pipe 1 or detaches from main pipe 1 in the time that ablation catheter uses, and makes far-end bend in advance pipeline section 13 and sentences respectively straight configuration or bending state, to adapt to different needs.The outer rigidity sheath pipe 8 of body can add tinsel netting with nylon composite materials and strengthen structure.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3d can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
Embodiment 12
The present invention is a kind of has the embodiment that removes renal artery sympathetic nerve ablation catheter 12 that bends in advance body and the difference of embodiment seven and is only the structure of intracanalicular type shape memory wire, this ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, main pipe 1 two ends are connected with handle 5 with electrode 2 respectively, main pipe 1 has tube chamber 11 and tube wall 12, electric wire 6 interts in main pipe 1 tube chamber 11, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wires through handle 5 is rear, main pipe 1 is main pipe 1 far-end near one end of electrode 2, the tube wall 12 of far-end is interior along the interspersed intracanalicular type shape memory wire 3d of main pipe's 1 axial direction, the material of intracanalicular type shape memory wire 3d is Ultimum Ti, intracanalicular type shape memory wire 3d has kink, the far-end that makes main pipe 1 far-end form bending after intracanalicular type shape memory wire 3d plug-in mounting bends pipeline section 13 in advance, far-end bends pipeline section 13 in advance can provide reliable controlled flexibility, far-end bend in advance pipeline section 13 under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
In the present embodiment, the curved shape that far-end bends pipeline section 13 in advance according to the rigidity of arteriorenal shape, size and intracanalicular type shape memory wire 3d by calculating and test acquisition, as a kind of structure wherein, as shown in figure 10, intracanalicular type shape memory wire 3e one end is straightway, the other end is the spiral section of waveform, after intracanalicular type shape memory wire 3e plug-in mounting, make far-end bend in advance pipeline section 13 and formed pigtail, far-end bends the spiral-shaped identical of the spiral-shaped of pipeline section 13 and intracanalicular type shape memory wire spiral section 3e in advance.Electrode 2 bends in advance pipeline section 13 with main pipe 1 far-end and is connected, linkage section is soft bendable, make electrode 2 contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent that electrode 2 excessive contact renal artery tunica intimaes from causing blood vessel wall twelve punch, or excessively melts and cause other organ accidental injuries.
In the present embodiment, described ablation catheter comprises the outer rigidity sheath pipe 8 of a body, the outer rigidity sheath pipe 8 of this body is used for being set with main pipe 1 or detaches from main pipe 1 in the time that ablation catheter uses, and makes far-end bend in advance pipeline section 13 and sentences respectively straight configuration or bending state, to adapt to different needs.The outer rigidity sheath pipe 8 of body can add tinsel netting with nylon composite materials and strengthen structure.
Ablation catheter in the present embodiment also has temperature sensor (not shown), and the embedded center that is arranged on electrode 2 of temperature sensor, for the temperature of sensing renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3d can be set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also can be designed to various shape and size and meet multiple different needs.
The various embodiments described above ablation catheter of the present invention external power supply and cool brine in use, can melt patient's renal artery tunica intima, easy to use and operation.
The above embodiment of the present invention is not limiting the scope of the present invention; embodiments of the present invention are not limited to this; all this kind is according to foregoing of the present invention; according to ordinary skill knowledge and the customary means of this area; do not departing under the above-mentioned basic fundamental thought of the present invention prerequisite; amendment, replacement or the change of other various ways that said structure of the present invention is made, within all should dropping on protection scope of the present invention.
Claims (10)
- One kind have bend in advance body remove renal artery sympathetic nerve ablation catheter, this ablation catheter comprises main pipe, electrode, hands handle, electric wire and electric connection, described main pipe's two ends are connected with handle with electrode respectively, described main pipe has tube chamber and tube wall, described electric wire interts in main pipe's tube chamber, one end of electric wire is connected with electrode, the other end is connected with electric connection electric wire through after handle, it is characterized in that: the far-end that described main pipe is main pipe near one end of electrode, the tube wall of far-end is interior along the interspersed intracanalicular type shape memory wire of main pipe's axial direction, described intracanalicular type shape memory wire has kink, the far-end that makes main pipe's far-end form bending after described intracanalicular type shape memory wire plug-in mounting bends pipeline section in advance, described far-end bends pipeline section in advance can provide reliable controlled flexibility, described far-end bend in advance pipeline section under the naturalness that is not subject to External Force Acting in bending state, under External Force Acting, can stretch being subject to, and after eliminating, external force can return to the bending state under naturalness.
- According to claim 1 have bend in advance body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: described ablation catheter also comprises rigid metal silk in a body, in this body, rigid metal silk is used for inserting main pipe's tube chamber or extracts out from main pipe's tube chamber in the time that ablation catheter uses, make far-end bend in advance pipeline section and sentence respectively straight configuration or bending state, to adapt to different needs.
- According to claim 1 have bend in advance body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: described ablation catheter also comprises the outer rigidity sheath pipe of a body, the outer rigidity sheath pipe of this body is used for being set with main pipe or detaches from main pipe in the time that ablation catheter uses, make far-end bend in advance pipeline section and sentence respectively straight configuration or bending state, to adapt to different needs.
- 4. what bend in advance body according to having described in claims 1 to 3 any one removes renal artery sympathetic nerve ablation catheter, it is characterized in that: the bending section that one end of described intracanalicular type shape memory wire is arc, the other end is straightway, this bending section has bending angle α, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed arc pipeline section, the crooked radian that far-end bends pipeline section is in advance identical with the crooked radian of intracanalicular type shape memory wire bending section.
- According to claim 4 have bend in advance body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: described bending angle α is within the scope of 15 °～45 °.
- 6. what bend in advance body according to having described in claims 1 to 3 any one removes renal artery sympathetic nerve ablation catheter, it is characterized in that: the two ends of described intracanalicular type shape memory wire are the bending section that straightway, middle part are arc, the straightway at two ends is located on the same line, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed arc pipeline section, the crooked radian that far-end bends pipeline section is in advance identical with the crooked radian of intracanalicular type shape memory wire bending section.
- 7. what bend in advance body according to having described in claims 1 to 3 any one removes renal artery sympathetic nerve ablation catheter, it is characterized in that: the two ends of described intracanalicular type shape memory wire are the bending section that straightway, middle part are arc, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed arc pipeline section, the crooked radian that far-end bends pipeline section is in advance identical with the crooked radian of intracanalicular type shape memory wire bending section.
- 8. what bend in advance body according to having described in claims 1 to 3 any one removes renal artery sympathetic nerve ablation catheter, it is characterized in that: the two ends of described intracanalicular type shape memory wire are the oblique line section that straightway, middle part are oblique setting, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed oblique line pipeline section, it is identical with the angle of inclination of intracanalicular type shape memory wire oblique line section that far-end bends the angle of inclination of pipeline section in advance.
- 9. what bend in advance body according to having described in claims 1 to 3 any one removes renal artery sympathetic nerve ablation catheter, it is characterized in that: described intracanalicular type shape memory wire one end is straightway, the other end is the spiral section of waveform, after described intracanalicular type shape memory wire plug-in mounting, make far-end bend in advance pipeline section and formed pigtail, far-end bends the spiral-shaped identical of the spiral-shaped of pipeline section and intracanalicular type shape memory wire spiral section in advance.
- 10. what bend in advance body according to having described in claims 1 to 3 any one removes renal artery sympathetic nerve ablation catheter, it is characterized in that: the material of described intracanalicular type shape memory wire is Ultimum Ti; Described ablation catheter also has temperature sensor, and the embedded center that is arranged on electrode of described temperature sensor, for the temperature of sensing renal artery tunica intima.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434296A (en) * | 2014-12-10 | 2015-03-25 | 江苏仁鸿医疗科技有限公司 | In-vivo lithotripter positioning device |
| CN109224247A (en) * | 2018-10-26 | 2019-01-18 | 大连科万维医疗科技有限公司 | A kind of venous cannula of band bending and distortion angle |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001037723A2 (en) * | 1999-11-22 | 2001-05-31 | Boston Scientific Limited | Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue |
| WO2004039273A2 (en) * | 2002-10-31 | 2004-05-13 | C.R. Bard, Inc. | Electrophysiology catheter with biased tip |
| WO2006055534A1 (en) * | 2004-11-15 | 2006-05-26 | Biosense Webster, Inc. | Soft linear mapping catheter with stabilizing tip |
| CN101304778A (en) * | 2005-09-16 | 2008-11-12 | 韦伯斯特生物官能公司 | Catheter with flexible pre-shaped tip section |
| CN201223445Y (en) * | 2008-06-23 | 2009-04-22 | 北京有色金属研究总院 | Radio frequency ablation catheter |
| CN102551874A (en) * | 2011-10-20 | 2012-07-11 | 上海微创电生理医疗科技有限公司 | Renal artery radiofrequency ablation catheter |
| CN202654228U (en) * | 2010-10-25 | 2013-01-09 | 美敦力Af卢森堡有限责任公司 | Catheter device for treating human being patient through renal denervation |
| CN102908191A (en) * | 2012-11-13 | 2013-02-06 | 陈绍良 | Multipolar synchronous pulmonary artery radiofrequency ablation catheter |
| CN102946935A (en) * | 2010-05-12 | 2013-02-27 | 瑟克科学有限责任公司 | Apparatus for manually manipulating hollow organs |
| CN103417290A (en) * | 2012-05-14 | 2013-12-04 | 韦伯斯特生物官能(以色列)有限公司 | Catheter with helical end section for vessel ablation |
| CN103442659A (en) * | 2011-01-28 | 2013-12-11 | 美敦力阿迪安卢森堡有限公司 | Ablation catheter equipped with shape memory material |
| CN204016470U (en) * | 2014-06-04 | 2014-12-17 | 远见企业有限公司 | A kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter |
-
2014
- 2014-06-04 CN CN201410244704.3A patent/CN104068930A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001037723A2 (en) * | 1999-11-22 | 2001-05-31 | Boston Scientific Limited | Loop structures for supporting diagnostic and therapeutic elements in contact with body tissue |
| WO2004039273A2 (en) * | 2002-10-31 | 2004-05-13 | C.R. Bard, Inc. | Electrophysiology catheter with biased tip |
| WO2006055534A1 (en) * | 2004-11-15 | 2006-05-26 | Biosense Webster, Inc. | Soft linear mapping catheter with stabilizing tip |
| CN101304778A (en) * | 2005-09-16 | 2008-11-12 | 韦伯斯特生物官能公司 | Catheter with flexible pre-shaped tip section |
| CN201223445Y (en) * | 2008-06-23 | 2009-04-22 | 北京有色金属研究总院 | Radio frequency ablation catheter |
| CN102946935A (en) * | 2010-05-12 | 2013-02-27 | 瑟克科学有限责任公司 | Apparatus for manually manipulating hollow organs |
| CN202654228U (en) * | 2010-10-25 | 2013-01-09 | 美敦力Af卢森堡有限责任公司 | Catheter device for treating human being patient through renal denervation |
| CN103442659A (en) * | 2011-01-28 | 2013-12-11 | 美敦力阿迪安卢森堡有限公司 | Ablation catheter equipped with shape memory material |
| CN102551874A (en) * | 2011-10-20 | 2012-07-11 | 上海微创电生理医疗科技有限公司 | Renal artery radiofrequency ablation catheter |
| CN103417290A (en) * | 2012-05-14 | 2013-12-04 | 韦伯斯特生物官能(以色列)有限公司 | Catheter with helical end section for vessel ablation |
| CN102908191A (en) * | 2012-11-13 | 2013-02-06 | 陈绍良 | Multipolar synchronous pulmonary artery radiofrequency ablation catheter |
| CN204016470U (en) * | 2014-06-04 | 2014-12-17 | 远见企业有限公司 | A kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104434296A (en) * | 2014-12-10 | 2015-03-25 | 江苏仁鸿医疗科技有限公司 | In-vivo lithotripter positioning device |
| CN109224247A (en) * | 2018-10-26 | 2019-01-18 | 大连科万维医疗科技有限公司 | A kind of venous cannula of band bending and distortion angle |
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