CN204016470U - A kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter - Google Patents
A kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter Download PDFInfo
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- CN204016470U CN204016470U CN201420294139.7U CN201420294139U CN204016470U CN 204016470 U CN204016470 U CN 204016470U CN 201420294139 U CN201420294139 U CN 201420294139U CN 204016470 U CN204016470 U CN 204016470U
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Abstract
The utility model discloses a kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter, this ablation catheter comprises main pipe, electrode, hands handle, electric wire and electric connection, the two ends of described main pipe are connected with handle with electrode respectively, described main pipe has tube chamber and tube wall, described electric wire interts in the tube chamber of main pipe, one end of electric wire and Electrode connection, the other end is connected with electric connection electric wire through after handle, described main pipe is the far-end of main pipe near one end of electrode, along the interspersed intracanalicular type shape memory wire of main pipe's axial direction in the tube wall of far-end, described intracanalicular type shape memory wire has kink, the far-end making the far-end of main pipe define bending after described intracanalicular type shape memory wire plug-in mounting bends pipeline section in advance, described far-end bends the flexibility that pipeline section can provide reliably controlled in advance.This ablation catheter is simple to operate, be easy to manufacture, and can provide reliable degree of crook.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, specifically refer to a kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter.
Background technology
Renal artery sympathetic nerve art (RDN) is gone to cause pay close attention to widely as the non-drug therapy means for the treatment of refractory hypertension through conduit in recent years, due to the important pathophysiological basis that renal sympathetic nerve excessive activation is hypertension incidence and maintenance, and renal sympathetic nerve fiber enters the kidney overwhelming majority through main renal artery adventitia, and this anatomical features determines RDN alternative and melts most of renal sympathetic nerve fiber.The energy discharged by the radiofrequency catheter inserting renal artery blood vessel can through outside blood vessel, middle film, and selectivity damages the sympathetic fiber of adventitia, reaches and reduces renal sympathetic nerve activity thus the object reduced blood pressure.
Implement the renal artery Ink vessel transfusing that RDN operation needs first to be pushed to by ablation catheter by guiding catheter side, the electrode of distal end of catheter is close to renal artery tunica intima, determine whether to put in place by electrode induced impedance, after enough impedances being detected, start low-power radio frequency energy electrode is progressively heated up, reach when melting set temperature and start to melt.The renal artery sympathetic nerve ablation catheter that goes of current clinical practice mostly is the unipolar conduit of single head, usually the flexible body of application, uses operating grip to realize the bending of body.
Patent documentation ZL2011103212304 discloses one and removes 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 is controlled by joystick, 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, and bracing wire is at last straight section and can extend at not homonymy in curved segment.This conduit controls bracing wire by control operation handle, can make curved segment to bend.This ablation catheter mainly controls the degree of crook of 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 is complicated, accomplish that the pipe with small pipe diameter of such as 4F is very difficult.
Therefore, be necessary that development one reliably can control degree of crook, structure is simply easy to the renal artery ablation catheter of manufacture again.
Utility model content
The purpose of this utility model be to provide a kind of have bend body in advance remove renal artery sympathetic nerve ablation catheter, this ablation catheter is simple to operate, be easy to manufacture, and can provide reliable degree of crook.
Above-mentioned purpose of the present utility model realizes by following technical solution: a kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter, this ablation catheter comprises main pipe, electrode, hands handle, electric wire and electric connection, the two ends of described main pipe are connected with handle with electrode respectively, described main pipe has tube chamber and tube wall, described electric wire interts in the tube chamber of main pipe, one end of electric wire and Electrode connection, the other end is connected with electric connection electric wire through after handle, it is characterized in that: described main pipe is the far-end of main pipe near one end of electrode, along the interspersed intracanalicular type shape memory wire of main pipe's axial direction in the tube wall of far-end, described intracanalicular type shape memory wire has kink, the far-end making the far-end of main pipe define bending after described intracanalicular type shape memory wire plug-in mounting bends pipeline section in advance, described far-end bends the flexibility that pipeline section can provide reliably controlled in advance, described far-end bends pipeline section in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated under naturalness.
This utility model ablation catheter key far-end is bent pipeline section in advance make bending, to provide reliably controlled flexibility, 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 testing acquisition.
This utility model ablation catheter needs just can stretch under external force, body is stretched and can adopt the following two kinds parts to realize:
Described ablation catheter also comprises rigid metal silk in a body, in this body rigid metal silk when ablation catheter uses for inserting the tube chamber of main pipe or extracting out from the tube chamber of main pipe, make far-end bend pipeline section in advance and sentence straight configuration or bending state respectively, 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 when ablation catheter uses for being set with main pipe or detaching from main pipe, make far-end bend pipeline section in advance and sentence straight configuration or bending state respectively, to adapt to different needs.
In this utility model, intracanalicular type shape memory wire can adopt following various structures, thus makes far-end bend pipeline section in advance to have various structures shape, 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: one end of described intracanalicular type shape memory wire is the bending section of arc, the other end is straightway, this bending section has bending angle α, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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 straightway, middle part is the bending section of arc, the straightway at two ends is located on the same line, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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 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, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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 oblique line section that the two ends of described intracanalicular type shape memory wire are straightway, middle part is oblique setting, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define oblique line pipeline section, the angle of inclination that far-end bends pipeline section is in advance identical with the angle of inclination of intracanalicular type shape memory wire oblique line section.In this utility model, it is arc pipeline section that described far-end bends pipeline section in advance, and have bending angle α, 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, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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 this utility model, the material of described intracanalicular type shape memory wire is Ultimum Ti.
As improvement of the present utility model: described ablation catheter also has temperature sensor, described temperature sensor installation by adhering at the center of electrode, for sensing the temperature of renal artery tunica intima.
Compared with prior art, ablation catheter of the present utility model creatively bends pipeline section in advance far-end and makes bending, can provide reliable flexibility, again structure simple, be easy to manufacture.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, this utility model is described in further details.
Fig. 1 is the overall structure schematic diagram of this utility model ablation catheter embodiment one;
Fig. 2 is the partial structurtes schematic diagram of this utility model ablation catheter embodiment one;
Fig. 3 is the partial structurtes schematic diagram of this utility model ablation catheter embodiment one, and now conduit is in straight configuration;
Fig. 4 is the partial structurtes schematic diagram of this utility model ablation catheter embodiment one, and now conduit is in bending state;
Fig. 5 is the structure chart of intracanalicular type shape memory wire in this utility model ablation catheter embodiment one;
Fig. 6 is the structure chart of intracanalicular type shape memory wire in this utility model ablation catheter embodiment two;
Fig. 7 is the structure chart of intracanalicular type shape memory wire in this utility model ablation catheter embodiment three;
Fig. 8 is the structure chart of intracanalicular type shape memory wire in this utility model ablation catheter embodiment four;
Fig. 9 is the structure chart of intracanalicular type shape memory wire in this utility model ablation catheter embodiment five;
Figure 10 is the structure chart of intracanalicular type shape memory wire in this utility model ablation catheter embodiment six;
Figure 11 is the partial structurtes schematic diagram of this utility model ablation catheter embodiment seven;
Figure 12 is the using state reference diagram of this utility model ablation catheter embodiment seven.
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 one
This utility model is a kind of have bend body in advance go the embodiment one of 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3 of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3 is Ultimum Ti, intracanalicular type shape memory wire 3 has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3 plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, as Fig. 2, shown in Fig. 5, one end of intracanalicular type shape memory wire 3 is the bending section of arc, the other end is straightway, this bending section has bending angle α, this bending angle α is 30 °, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3 plug-in mounting and define 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 section, there is identical bending angle α.Electrode 2 bends pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 when ablation catheter uses for inserting the tube chamber 11 of main pipe 1 or extracting out from the tube chamber 11 of main pipe 1, make far-end bend pipeline section 13 in advance and sentence straight configuration or bending state respectively, to adapt to different needs.Far-end bends pipeline section 13 in advance and is in bending state in naturalness.As shown in Figure 3, when rigid metal silk 4 in body inserts the tube chamber 11 of main pipe 1, far-end bends pipeline section 13 in advance and stretches; As shown in Figure 4, when the tube chamber 11 of rigid metal silk 4 in body from main pipe 1 detaches, far-end bends pipeline section 13 in advance and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the bending angle α of intracanalicular type shape memory wire 3 bending section can within the scope of 15 ° ~ 45 ° value.The shape of intracanalicular type shape memory wire 3 can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment two
A kind of the go embodiment two of renal artery sympathetic nerve ablation catheter and difference of embodiment one with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3a of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3a is Ultimum Ti, intracanalicular type shape memory wire 3a has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3a plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, 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, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3a plug-in mounting and define 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 pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 when ablation catheter uses for inserting the tube chamber 11 of main pipe 1 or extracting out from the tube chamber 11 of main pipe 1, make far-end bend pipeline section 13 in advance and sentence straight configuration or bending state respectively, to adapt to different needs.Far-end bends pipeline section 13 in advance and is in bending state in naturalness.When rigid metal silk 4 in body inserts the tube chamber 11 of main pipe 1, far-end bends pipeline section 13 in advance and stretches; When the tube chamber 11 of rigid metal silk 4 in body from main pipe 1 detaches, far-end bends pipeline section 13 in advance and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3a can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment three
A kind of the go embodiment three of renal artery sympathetic nerve ablation catheter and difference of embodiment one with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3b of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3b is Ultimum Ti, intracanalicular type shape memory wire 3b has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3b plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, as shown in Figure 7, the termination of one end of intracanalicular type shape memory wire 3b is the bending section of arc, the other end is straightway, the curved shape of this bending section is slightly different from the curved shape in embodiment one, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3 plug-in mounting and define 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 section.Electrode 2 bends pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 when ablation catheter uses for inserting the tube chamber 11 of main pipe 1 or extracting out from the tube chamber 11 of main pipe 1, make far-end bend pipeline section 13 in advance and sentence straight configuration or bending state respectively, to adapt to different needs.Far-end bends pipeline section 13 in advance and is in bending state in naturalness.When rigid metal silk 4 in body inserts the tube chamber 11 of main pipe 1, far-end bends pipeline section 13 in advance and stretches; When the tube chamber 11 of rigid metal silk 4 in body from main pipe 1 detaches, far-end bends pipeline section 13 in advance and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3b can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment four
A kind of the go embodiment four of renal artery sympathetic nerve ablation catheter and difference of embodiment one with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3c of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3c is Ultimum Ti, intracanalicular type shape memory wire 3c has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3c plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, 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, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3c plug-in mounting and define 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 pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 when ablation catheter uses for inserting the tube chamber 11 of main pipe 1 or extracting out from the tube chamber 11 of main pipe 1, make far-end bend pipeline section 13 in advance and sentence straight configuration or bending state respectively, to adapt to different needs.Far-end bends pipeline section 13 in advance and is in bending state in naturalness.When rigid metal silk 4 in body inserts the tube chamber 11 of main pipe 1, far-end bends pipeline section 13 in advance and stretches; When the tube chamber 11 of rigid metal silk 4 in body from main pipe 1 detaches, far-end bends pipeline section 13 in advance and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3c can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment five
A kind of the go embodiment five of renal artery sympathetic nerve ablation catheter and difference of embodiment one with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3d of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3d is Ultimum Ti, intracanalicular type shape memory wire 3d has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3d plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, 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, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3d plug-in mounting and define oblique line pipeline section, the angle of inclination that far-end bends pipeline section 13 is in advance identical with the angle of inclination of intracanalicular type shape memory wire 3d oblique line section.Electrode 2 bends pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 when ablation catheter uses for inserting the tube chamber 11 of main pipe 1 or extracting out from the tube chamber 11 of main pipe 1, make far-end bend pipeline section 13 in advance and sentence straight configuration or bending state respectively, to adapt to different needs.Far-end bends pipeline section 13 in advance and is in bending state in naturalness.When rigid metal silk 4 in body inserts the tube chamber 11 of main pipe 1, far-end bends pipeline section 13 in advance and stretches; When the tube chamber 11 of rigid metal silk 4 in body from main pipe 1 detaches, far-end bends pipeline section 13 in advance and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3d can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment six
A kind of the go embodiment six of renal artery sympathetic nerve ablation catheter and difference of embodiment one with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3e of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3e is Ultimum Ti, intracanalicular type shape memory wire 3e has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3e plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, as shown in Figure 10, intracanalicular type shape memory wire 3e one end is straightway, the other end is the spiral section of waveform, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3e plug-in mounting and define 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 pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 when ablation catheter uses for inserting the tube chamber 11 of main pipe 1 or extracting out from the tube chamber 11 of main pipe 1, make far-end bend pipeline section 13 in advance and sentence straight configuration or bending state respectively, to adapt to different needs.Far-end bends pipeline section 13 in advance and is in bending state in naturalness.When rigid metal silk 4 in body inserts the tube chamber 11 of main pipe 1, far-end bends pipeline section 13 in advance and stretches; When the tube chamber 11 of rigid metal silk 4 in body from main pipe 1 detaches, far-end bends pipeline section 13 in advance and returns to nature bending state.
Ablation catheter in the present embodiment also has temperature sensor (not shown), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3e can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment seven
This utility model is a kind of have bend body in advance go the embodiment seven of renal artery sympathetic nerve ablation catheter as shown in Figure 11, Figure 12, with embodiment one unlike, with rigid metal silk 4 in the body in outer rigidity sheath pipe 8 alternate embodiment one of body in this embodiment.
This ablation catheter comprises main pipe 1, electrode 2, handle 5, electric wire 6 and electric connection 7, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3 of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3 is Ultimum Ti, intracanalicular type shape memory wire 3 has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3 plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, as Fig. 2, shown in Fig. 5, one end of intracanalicular type shape memory wire 3 is the bending section of arc, the other end is straightway, this bending section has bending angle α, this bending angle α is 30 °, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3 plug-in mounting and define 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 section, there is identical bending angle α.Electrode 2 bends pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 for being set with main pipe 1 or detaching from main pipe 1 when ablation catheter uses, makes far-end bend pipeline section 13 in advance and sentences straight configuration or bending state respectively, 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), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the bending angle α of intracanalicular type shape memory wire 3 bending section can within the scope of 15 ° ~ 45 ° value.The shape of intracanalicular type shape memory wire 3 can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment eight
A kind of the go embodiment eight of renal artery sympathetic nerve ablation catheter and difference of embodiment seven with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3a of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3a is Ultimum Ti, intracanalicular type shape memory wire 3a has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3a plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, 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, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3a plug-in mounting and define 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 pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 for being set with main pipe 1 or detaching from main pipe 1 when ablation catheter uses, makes far-end bend pipeline section 13 in advance and sentences straight configuration or bending state respectively, 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), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3a can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment nine
A kind of the go embodiment nine of renal artery sympathetic nerve ablation catheter and difference of embodiment seven with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3b of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3b is Ultimum Ti, intracanalicular type shape memory wire 3b has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3b plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, as shown in Figure 7, the termination of one end of intracanalicular type shape memory wire 3b is the bending section of arc, the other end is straightway, the curved shape of this bending section is slightly different from the curved shape in embodiment six, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3 plug-in mounting and define 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 section.Electrode 2 bends pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 for being set with main pipe 1 or detaching from main pipe 1 when ablation catheter uses, makes far-end bend pipeline section 13 in advance and sentences straight configuration or bending state respectively, 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), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3b can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment ten
A kind of the go embodiment ten of renal artery sympathetic nerve ablation catheter and difference of embodiment seven with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3c of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3c is Ultimum Ti, intracanalicular type shape memory wire 3c has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3c plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, 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, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3c plug-in mounting and define 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 pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 for being set with main pipe 1 or detaching from main pipe 1 when ablation catheter uses, makes far-end bend pipeline section 13 in advance and sentences straight configuration or bending state respectively, 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), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3c can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment 11
A kind of the go embodiment 11 of renal artery sympathetic nerve ablation catheter and difference of embodiment seven with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3d of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3d is Ultimum Ti, intracanalicular type shape memory wire 3d has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3d plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, 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, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3d plug-in mounting and define oblique line pipeline section, the angle of inclination that far-end bends pipeline section 13 is in advance identical with the angle of inclination of intracanalicular type shape memory wire 3d oblique line section.Electrode 2 bends pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 for being set with main pipe 1 or detaching from main pipe 1 when ablation catheter uses, makes far-end bend pipeline section 13 in advance and sentences straight configuration or bending state respectively, 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), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3d can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
Embodiment 12
A kind of the go embodiment 12 of renal artery sympathetic nerve ablation catheter and difference of embodiment seven with bending body in advance of this utility model 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, the two ends of main pipe 1 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 the tube chamber 11 of main pipe 1, one end of electric wire 6 is connected with electrode 2, the other end is connected with electric connection 7 electric wire through after handle 5, main pipe 1 is the far-end of main pipe 1 near one end of electrode 2, along the interspersed intracanalicular type shape memory wire 3d of main pipe 1 axial direction in the tube wall 12 of far-end, the material of intracanalicular type shape memory wire 3d is Ultimum Ti, intracanalicular type shape memory wire 3d has kink, the far-end making the far-end of main pipe 1 define bending after intracanalicular type shape memory wire 3d plug-in mounting bends pipeline section 13 in advance, far-end bends the flexibility that pipeline section 13 can provide reliably controlled in advance, far-end bends pipeline section 13 in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated 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 testing acquisition, as wherein a kind of structure, as shown in Figure 10, intracanalicular type shape memory wire 3e one end is straightway, the other end is the spiral section of waveform, make far-end bend pipeline section 13 in advance after intracanalicular type shape memory wire 3e plug-in mounting and define 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 pipeline section 13 in advance with the far-end of main pipe 1 and is connected, linkage section is soft bendable, make electrode 2 can contacts side surfaces renal artery tunica intima abreast, such contacts side surfaces can prevent electrode 2 excessive contact renal artery tunica intima 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 for being set with main pipe 1 or detaching from main pipe 1 when ablation catheter uses, makes far-end bend pipeline section 13 in advance and sentences straight configuration or bending state respectively, 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), temperature sensor installation by adhering at the center of electrode 2, for sensing the temperature of renal artery tunica intima.
As the conversion of the present embodiment, the shape of intracanalicular type shape memory wire 3d can set by calculating and testing according to the rigidity of arteriorenal shape and size and memory wire.Also various shape and size can be designed to meet multiple different needs.
The various embodiments described above ablation catheter of the present utility model external power supply and cool brine in use, can melt patient's renal artery tunica intima, easy to use and operation.
Above-described embodiment of the present utility model is not the restriction to this utility model protection domain; embodiment of the present utility model is not limited thereto; all this kind is according to foregoing of the present utility model; according to ordinary technical knowledge and the customary means of this area; do not departing under this utility model above-mentioned basic fundamental thought prerequisite; to the amendment of other various ways that this utility model said structure is made, replacement or change, all should drop within protection domain of the present utility model.
Claims (10)
1. one kind have in advance bend body remove renal artery sympathetic nerve ablation catheter, this ablation catheter comprises main pipe, electrode, hands handle, electric wire and electric connection, the two ends of described main pipe are connected with handle with electrode respectively, described main pipe has tube chamber and tube wall, described electric wire interts in the tube chamber of main pipe, one end of electric wire and Electrode connection, the other end is connected with electric connection electric wire through after handle, it is characterized in that: described main pipe is the far-end of main pipe near one end of electrode, along the interspersed intracanalicular type shape memory wire of main pipe's axial direction in the tube wall of far-end, described intracanalicular type shape memory wire has kink, the far-end making the far-end of main pipe define bending after described intracanalicular type shape memory wire plug-in mounting bends pipeline section in advance, described far-end bends the flexibility that pipeline section can provide reliably controlled in advance, described far-end bends pipeline section in advance and be in bending state under not by the naturalness of External Force Acting, be subject to can stretching under External Force Acting, and the bending state that can return to after external force is eliminated under naturalness.
2. according to claim 1 have in advance bend 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 when ablation catheter uses for inserting the tube chamber of main pipe or extracting out from the tube chamber of main pipe, make far-end bend pipeline section in advance and sentence straight configuration or bending state respectively, to adapt to different needs.
3. according to claim 1 have in advance bend 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 when ablation catheter uses for being set with main pipe or detaching from main pipe, make far-end bend pipeline section in advance and sentence straight configuration or bending state respectively, to adapt to different needs.
4. according to any one of claims 1 to 3 having in advance bend body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: one end of described intracanalicular type shape memory wire is the bending section of arc, the other end is straightway, this bending section has bending angle α, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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.
5. according to claim 4 have in advance bend 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. according to any one of claims 1 to 3 having in advance bend body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: the two ends of described intracanalicular type shape memory wire are straightway, middle part is the bending section of arc, the straightway at two ends is located on the same line, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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. according to any one of claims 1 to 3 having in advance bend body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: the two ends of described intracanalicular type shape memory wire 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, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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. according to any one of claims 1 to 3 having in advance bend body remove renal artery sympathetic nerve ablation catheter, it is characterized in that: the oblique line section that the two ends of described intracanalicular type shape memory wire are straightway, middle part is oblique setting, the straightway at two ends be arranged in parallel, the straightway at two ends has difference in height, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define oblique line pipeline section, the angle of inclination that far-end bends pipeline section is in advance identical with the angle of inclination of intracanalicular type shape memory wire oblique line section.
9. according to any one of claims 1 to 3 having in advance bend body remove 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, make far-end bend pipeline section in advance after described intracanalicular type shape memory wire plug-in mounting and define 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. according to any one of claims 1 to 3 having in advance bend body remove 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, described temperature sensor installation by adhering at the center of electrode, for sensing the temperature of renal artery tunica intima.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420294139.7U CN204016470U (en) | 2014-06-04 | 2014-06-04 | A kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter |
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| CN201420294139.7U CN204016470U (en) | 2014-06-04 | 2014-06-04 | A kind of have in advance bend body remove renal artery sympathetic nerve ablation catheter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068930A (en) * | 2014-06-04 | 2014-10-01 | 远见企业有限公司 | Renal denervation ablation catheter with pre-bent catheter body |
| CN108339194A (en) * | 2018-04-03 | 2018-07-31 | 广州迈普再生医学科技有限公司 | A kind of sheath, syringe nozzle and its application of bent moulding |
-
2014
- 2014-06-04 CN CN201420294139.7U patent/CN204016470U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104068930A (en) * | 2014-06-04 | 2014-10-01 | 远见企业有限公司 | Renal denervation ablation catheter with pre-bent catheter body |
| CN108339194A (en) * | 2018-04-03 | 2018-07-31 | 广州迈普再生医学科技有限公司 | A kind of sheath, syringe nozzle and its application of bent moulding |
| CN108339194B (en) * | 2018-04-03 | 2023-12-26 | 广州迈普再生医学科技股份有限公司 | Bendable sheath tube, injector nozzle and application thereof |
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