CN201492502U - Control handle and omnidirectional controllable bending radio frequency ablation guide tube - Google Patents
Control handle and omnidirectional controllable bending radio frequency ablation guide tube Download PDFInfo
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- CN201492502U CN201492502U CN200920222411XU CN200920222411U CN201492502U CN 201492502 U CN201492502 U CN 201492502U CN 200920222411X U CN200920222411X U CN 200920222411XU CN 200920222411 U CN200920222411 U CN 200920222411U CN 201492502 U CN201492502 U CN 201492502U
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Abstract
The utility model discloses a control handle, which comprises a far-end handle body, a near-end handle body, a center cavity which stretches from the far end to the near end, and a bending control mechanism arranged on the hand bodies, wherein the bending control mechanism consists of a control base and a control rod arranged on the control base, an oblique holes is arranged on the control base, and the control rod is provided with a vertical hole corresponding to the oblique hole. The control handle can control a guide tube to bend toward any direction without turning the tube body, improves the control effect and bending control precision of the guide tube, avoids the torsion of the tube body, and further improves the safety. The utility model further provides an omnidirectional controllable bending radio frequency ablation guide tube adopting same.
Description
Technical field
This utility model relates to a kind of electric physiological electrode conduit, relates to the controlled curved radio-frequency (RF) ablation conduit of a kind of omnidirectional concretely.
Background technology
Electricity physiological electrode conduit (hereinafter to be referred as electrode catheter) has been widely used in the medical practice at present, and the electricity physiological signal that it is mainly used in inner each position of record heart carries out electricity irritation to heart, thereby reaches the purpose to heart disease mapping and treatment.Its using method is at first puncture femoral vein blood vessel or internal jugular vein blood vessel, under radioscopy, along lumen of vessels electrode catheter is delivered to diverse location in the heart, and heart is carried out electrophysiologic study, mapping or radio-frequency (RF) ablation.
In clinical practice, can be sent to different parts in the heart for making electrode catheter, it preferably can be handled.Steerable electrode catheter is well known at present, and it generally comprises the joystick of being located at the electrode catheter near-end, is used to control the deflection of melting part.A kind of steerable electrode catheter is disclosed as U.S. Pat RE34502, the part that melts that it comprises elongated catheter body, is located at the joystick of catheter body near-end and is located at the catheter body far-end, wherein catheter body comprises a single central lumen, draught line extends axially the central lumen of catheter body, enters then in the off-axis chamber that melts part; Draught line vertically moves with respect to catheter body can cause the deflection of melting part.
U.S. Pat 6123699 discloses a kind of electrode catheter of improved omnidirectional, the part that melts that comprises elongated catheter body, is located at the joystick of catheter body near-end and is located at the catheter body far-end, wherein catheter body comprises central lumen and 4 symmetrically arranged off-axis chambers; Draught line extends in described off-axis chamber, the near-end of draught line is connected with 4 pistons respectively, each piston is connected with button slidably respectively, different buttons can be handled draught line respectively by sliding, make draught line vertically move, thereby realize omnidirectional's deflection of electrode catheter with respect to catheter body.
At present, need still that clinical manipulation is easy, simple in structure, the curved high radio-frequency (RF) ablation conduit of precision of control.
Summary of the invention
This utility model provides a kind of joystick, and it can control conduit to any direction bending.
This utility model also provides a kind of controlled curved radio-frequency (RF) ablation conduit of omnidirectional that adopts above-mentioned joystick.
A kind of joystick, comprise handle main body with far-end and near-end, by far-end to the central lumen of proximal extension and be located at control bender structure on the handle main body, wherein, described control bender structure comprises controlling base and is located at control lever on the controlling base, be provided with inclined hole on described controlling base; Described control lever is provided with and the corresponding vertical core of described inclined hole.
The quantity of described inclined hole and set-up mode thereof, those skilled in the art can set as required, and it is at least three, can be four, five or more, and preferred, described inclined hole is three, is the uniform setting of 120 degree.
Preferably, described controlling base bottom is provided with groove, and it is connected with described inclined hole; Described central chamber is provided with guide pipe, and the proximal extension of described guide pipe is connected with described inclined hole to described groove.
Preferably, the top of described control lever is provided with the control lever head.
Preferably, the near-end of described handle main body is provided with plug, is used to connect electric connector, so that be connected between the electrode with electronic control unit and conduit.
The controlled curved radio-frequency (RF) ablation conduit of a kind of omnidirectional comprises catheter body, and it has far-end and near-end, is provided with at the far-end of described catheter body and melts part, is provided with described joystick at the near-end of described catheter body; Described catheter body comprises first central lumen and the first planet chamber, and wherein, draught line extends in the described first planet chamber, and lead extends in described first central chamber; The near-end of described draught line and lead is fixed on the described joystick, and far-end is fixed on and melts part.
Described catheter body comprises reinforced pipe and is placed in its outside main body pipe, described main body pipe can be made by any suitable biocompatible polymer material, preferably, make by polyether block amide, polyurethane or nylon material, its inwall comprises one deck wire braid at least, can be the rustless steel braid; Described catheter body is preferably elongated, flexible, but incompressible on its length direction.
Described first central lumen and the first planet chamber extending axially in catheter body; The axle center of the described first planet chamber and is circularly and evenly distributed around the axle center of first central lumen on the concentric circle of one and first central lumen.Those skilled in the art also can deviate from and the concentric circle of first central lumen axle center of the described first planet chamber as required on a small quantity, make the axle of the described first planet chamber
The heart on the concentric circle of one and first central lumen, also can reach same technique effect basically, and does not depart from spirit of the present utility model.
Preferably, the described part that melts comprises elasticity head end pipe, it has far-end, near-end, the second planet chamber and second central lumen, the far-end of described elasticity head end pipe is provided with ablating electrode, and be provided with at least one ring electrode on the length direction of elasticity head end pipe, the far-end of wherein said lead is connected with ablating electrode and ring electrode respectively.
Preferably, the quantity of the described first planet chamber and the second planet chamber, those skilled in the art can set as required, it is at least three, can be four, five or more, preferred, the described first planet chamber and the second planet chamber be three, its cross section can be any suitable shape, is preferably circle.
Preferably, described ablating electrode comprises endoporus, and its quantity is at least four, can be five, six or more, is preferably four endoporus, and it is connected with the second planet chamber and second central lumen respectively.
Preferably, described draught line is made by rustless steel or Nitinol, and its far-end extends in the endoporus of described ablating electrode by the first planet chamber and the second planet chamber, is fixed by welding in the described endoporus.
Preferably, the near-end of described draught line extends out from described inclined hole by guide pipe, and its end is fixed on the vertical core of described control lever.
Preferably, the one section draught line that in described joystick and catheter body, extends, its outside is with incompressible bourdon tube, and the outside of described bourdon tube is with second protective casing, and it can be made by any suitable material, is preferably made by polyamide material; The one section draught line that in described elasticity head end pipe, extends, its outside is with first protective casing, and it can be made by any suitable material, is preferably made by polytetrafluoroethylmaterial material.
Preferably, comprise also that in described first central lumen and second central chamber heat sensor extends within it, it can be an occasionally critesistor of thermoelectricity, and the far-end of described heat sensor is fixed on the ablating electrode, and its near-end extends to joystick by described central lumen.
Joystick of the present utility model is controlled the displacement of three draught lines by the action bars that is connected with universal joint, when the described control lever of operation, can be so that three draught lines be subjected to displacement respectively, the angle of inclination of stick and direction vector are converted into displacement difference between the draught line; Because three second planet chambers of described elasticity head end pipe are the circumference uniform distribution structure, therefore, the displacement difference of three draught lines can be converted into the decrement of the different directions of described elasticity head end pipe, thereby feasible melting partly can be to the direction vector bending of three draught line displacement difference; It is crooked and need not reverse body to any direction that it can control conduit, improved the manipulation effect and the curved precision of control of conduit, avoided reversing of body, improved safety; Further make and adopt the controlled curved radio-frequency (RF) ablation conduit of omnidirectional of above-mentioned joystick to realize that omnidirectional is controlled.
Description of drawings
Fig. 1 is the structural representation according to the controlled curved radio-frequency (RF) ablation conduit of omnidirectional of the present utility model;
Fig. 2 is according to the left view of the controlled curved radio-frequency (RF) ablation conduit of omnidirectional of the present utility model;
Fig. 3 is the cutaway view along A-A line shown in Figure 2, represents the controlled curved radio-frequency (RF) ablation guide-tube structure sketch map of omnidirectional of the present utility model;
Fig. 4 is the cutaway view along E-E line shown in Figure 3, the cross-sectional view of expression catheter body;
Fig. 5 is the cutaway view along D-D line shown in Figure 3, and the cross-sectional view of part is melted in expression;
Fig. 6 is the enlarged drawing at C place shown in Figure 3, expression catheter body and the annexation that melts part;
Fig. 7 is the enlarged drawing at B place shown in Figure 3, and the structural representation of part is melted in expression.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail, but this utility model is not limited only to the following examples.
In this utility model, described " central lumen " is meant the central lumen in the handle main body, described " first central lumen " is meant the central lumen of catheter body, described " second central lumen " is meant the central lumen of elasticity head end pipe, described " the first planet chamber " is meant the planet chamber of catheter body, and described " the second planet chamber " is meant the planet chamber of elasticity head end pipe.
Fig. 1 is the structural representation according to the controlled curved radio-frequency (RF) ablation conduit 10 of a kind of preferred omnidirectional of the present utility model, comprise catheter body 11, it has far-end and near-end, is provided with at the far-end of described catheter body 11 and melts part 12, is provided with joystick 13 at the near-end of described catheter body 11.
Fig. 2 is the left view according to the controlled curved radio-frequency (RF) ablation conduit 10 of a kind of preferred omnidirectional of the present utility model, shows the structure of joystick 13, comprises handle main body 32, and is located at the control bender structure 31 on the handle main body 32.
Fig. 3 is the cutaway view along A-A line shown in Figure 2, and described handle main body 32 has far-end and near-end, and preferred, it comprises by the central lumen 34 of far-end to proximal extension, is provided with guide pipe 46 in the described central lumen 34.
Described control bender structure 31 comprises controlling base 44 and is located at control lever 40 on the controlling base 44.Preferably, the top of described control lever 40 is provided with control lever 41, as shown in Figure 3; Preferably, on described controlling base 44, also be provided with inclined hole 43, the quantity of described inclined hole 43 and set-up mode thereof, those skilled in the art can set as required, its be at least three, can four, five or more, this utility model is preferably three inclined holes 43, is the uniform setting of 120 degree, as shown in Figure 3; Preferably be provided with on the described control lever 40 and described inclined hole 43 corresponding vertical cores 42.
Preferably, the bottom of described controlling base 44 is provided with groove 47, and it is connected with described inclined hole 43; The proximal extension of described guide pipe 10 is connected with described inclined hole 43 to described groove 47; The far-end of described guide pipe 10 is fixed in the central lumen 34 of described handle main body 32 by bonding, welding or other suitable manner, preferably fixes by glue bond.
Preferably, the far-end of described handle main body 32 is provided with plug 14.
Fig. 4 is the cutaway view along E-E line shown in Figure 3, the cross-sectional view of expression catheter body 11; Described catheter body 11 comprises reinforced pipe 16 and is placed in its outside main body pipe 15, preferably, described main body pipe 15 is made by the macromolecular material of biocompatibility, preferably, make by polyether block amide, polyurethane or nylon material, its inwall comprises one deck wire braid (not shown) at least, can be the rustless steel braid; Described reinforced pipe 16 comprises first central lumen 19 and at least one first planet chamber 17, and its macromolecular material by biocompatibility is made, and is preferred, by polyether block amide, polyurethane or the extrusion modling of nylon material one; The quantity of the described first planet chamber 17 can be at least three, can be four, five or more, and those skilled in the art can be provided with as required, and this utility model is preferably and comprises three described first planet chambers 17; Described catheter body is preferably elongated, flexible, but incompressible on its length direction.
The axle center of described at least one first planet chamber 17 and is circularly and evenly distributed around the axle center of first central lumen 19 on one and first central lumen, 19 concentric circles; Those skilled in the art also can be as required, the axle center of the described first planet chamber 17 is deviated from and first central lumen, 19 concentric circles on a small quantity, the axle center that makes the described first planet chamber 17 is basically on one and first central lumen, 19 concentric circles, also can reach same technique effect, and not depart from spirit of the present utility model.The cross section of the described first planet chamber 17 can be any suitable shape, is preferably circle.
Described first central lumen 19 and the first planet chamber 17 extending axially in catheter body 11.
Draught line 18 extends in described first central lumen 19, and its outside preferably is with bourdon tube 14; Lead 27 extends in the described first planet chamber 17.
Fig. 5 is the cutaway view along D-D line shown in Figure 3, and the cross-sectional view of part 12 is melted in expression; Preferably, the described part 12 that melts comprises elasticity head end pipe 28, and it is made by biocompatible materials, comprises far-end, near-end, second central lumen 24 and at least three second planet chambers 22; Described second central lumen 24 and the second planet chamber 22 are connected with described first central lumen 19 and the first planet chamber 17 respectively.
Preferably, draught line 18 extends in described second central lumen 24, and its outside is with first protective casing 23, and it can be made by any suitable material, is preferably made by polytetrafluoroethylmaterial material; Lead 27 extends in the described second planet chamber 22.
Fig. 6 is the enlarged drawing at C place shown in Figure 3, expression catheter body 11 and melt annexation between the part 12; Preferably, the near-end of described elasticity head end pipe 28 is levigate end 29, and its external diameter matches with the internal diameter of main body pipe 15, and described levigate end 29 is inserted in the main body pipe 15, by bonding, welding or other suitable manner that itself and catheter body 11 is fixing, preferably fix by the ultraviolet curing glue bond.
Preferably, draught line 18 extends in the second planet chamber 22 of described elasticity head end pipe 28 in the first planet chamber 17 of joystick 13 by described reinforced pipe 16, the one section draught line 18 that in described catheter body 11, extends, its outside preferably is with incompressible bourdon tube 14, the outside of described bourdon tube 14 preferably is with the second protective casing (not shown), it can be made by any suitable material, preferably make by polyamide material, its far-end and near-end can be by bondings, welding or other suitable manner are fixed on the described bourdon tube 14, preferably fix by the ultraviolet curing glue bond; The one section draught line 18 that in described elasticity head end pipe 28, extends, its outside preferably is with first protective casing 23, and it can be made by any suitable material, is preferably made by polytetrafluoroethylmaterial material.
Fig. 7 is the enlarged drawing at B place shown in Figure 3, and the structural representation of part 12 is melted in expression.Preferably, the far-end of described elasticity head end pipe 28 is provided with ablating electrode 21, is being provided with ring electrode 25 on the length direction of elasticity head end pipe 28, and its quantity can be according to actual needs and different, at least comprising one, also can be two, three, four or more.
Preferably, described ablating electrode 21 comprises at least four endoporus 20, it can be five, six or more, preferably include four endoporus 20, it is connected with second central lumen 24 and the second planet chamber 22 respectively, its near-end is fixed to the far-end of elasticity head end pipe 28 by bonding, welding or other suitable manner, preferably fixes by the ultraviolet curing glue bond.
Preferably, the far-end of draught line 18 extends in the endoporus 24 of ablating electrode 21 by the described second planet chamber 22 respectively, is fixed by welding in the endoporus 24.
As shown in Figure 6 and Figure 7, preferred, the far-end of lead 27 extends to by first central lumen 19 in second central lumen 21 of elasticity head end pipe 28, and its far-end is electrically connected with ablating electrode 21 and ring electrode 25 respectively; Lead 27 is fixed by welding in the endoporus 24 of ablating electrode 21; Also fixing between lead and the ring electrode 4 by welding.
Preferably, the near-end of lead 27 extends out by the hole 45 on the described guide pipe 10, and its end is welded on the plug 14, as shown in Figure 3.
Preferably, on ablating electrode 21, also be fixed with at least one heat sensor 26, it can be an occasionally critesistor of thermoelectricity, and the far-end of described heat sensor 26 is fixed in the endoporus 24 of ablating electrode 21 by bonding, welding or other suitable manner, and is preferably fixing by the heat-conducting glue bonding; Its near-end extends in first central lumen 19 of reinforced pipe 16 by second central lumen 24 of elasticity head end pipe 28, extends out by the hole on the guide pipe 10 45 at last, links to each other with device for detecting temperature.
It is described that embodiment of the present utility model is not limited to the foregoing description; under the situation that does not depart from spirit and scope of the present utility model; those of ordinary skills can make various changes and improvements to this utility model in form and details, and these all are considered to fall into protection domain of the present utility model.
Claims (10)
1. joystick, it is characterized in that, comprise handle main body with far-end and near-end, by far-end to the central lumen of proximal extension and be located at control bender structure on the handle main body, described control bender structure comprises controlling base and is located at control lever on the controlling base, be provided with inclined hole on described controlling base; Described control lever is provided with and the corresponding vertical core of described inclined hole.
2. joystick according to claim 1 is characterized in that, the quantity of described inclined hole is three, four, five or more.
3. joystick according to claim 2 is characterized in that, the quantity of described inclined hole is three, and it is the uniform setting of 120 degree.
4. according to claim 1 or 2 or 3 described joysticks, it is characterized in that described controlling base bottom is provided with groove, it is connected with described inclined hole.
5. joystick according to claim 4 is characterized in that described central chamber is provided with guide pipe, and the proximal extension of described guide pipe is connected with described inclined hole to described groove.
6. according to claim 1 or 2 or 3 described joysticks, it is characterized in that the top of described control lever is provided with the control lever head.
7. controlled curved radio-frequency (RF) ablation conduit of omnidirectional that adopts the described joystick of claim 1, it is characterized in that, comprise catheter body, it has far-end and near-end, be provided with at the far-end of described catheter body and melt part, be provided with described joystick at the near-end of described catheter body; Described catheter body comprises first central lumen and at least two first planet chambers, and wherein, draught line extends in the described first planet chamber, and lead extends in described first central chamber; The near-end of described draught line and lead is fixed on the described joystick, and far-end is fixed on and melts part.
8. the controlled curved radio-frequency (RF) ablation conduit of omnidirectional according to claim 7 is characterized in that, described first central lumen and the first planet chamber extending axially in catheter body; The axle center of the described first planet chamber and is circularly and evenly distributed around the axle center of first central lumen on the concentric circle of one and first central lumen.
9. according to the controlled curved radio-frequency (RF) ablation conduit of claim 7 or 8 described omnidirectionals, it is characterized in that, the described part that melts comprises elasticity head end pipe, the far-end of described elasticity head end pipe is provided with ablating electrode, described ablating electrode comprises at least four endoporus, and it is connected with the second planet chamber and second central lumen respectively.
10. the controlled curved radio-frequency (RF) ablation conduit of omnidirectional according to claim 9 is characterized in that the far-end of described draught line extends in the endoporus of ablating electrode by the first planet chamber and the second planet chamber; The near-end of described draught line extends out from described inclined hole by guide pipe, and its end is fixed on the vertical core of described control lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920222411XU CN201492502U (en) | 2009-09-08 | 2009-09-08 | Control handle and omnidirectional controllable bending radio frequency ablation guide tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920222411XU CN201492502U (en) | 2009-09-08 | 2009-09-08 | Control handle and omnidirectional controllable bending radio frequency ablation guide tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201492502U true CN201492502U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920222411XU Expired - Lifetime CN201492502U (en) | 2009-09-08 | 2009-09-08 | Control handle and omnidirectional controllable bending radio frequency ablation guide tube |
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| CN (1) | CN201492502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519885A (en) * | 2013-09-18 | 2014-01-22 | 上海慧达医疗器械有限公司 | Multifunctional catheter with height selectivity in renal artery |
-
2009
- 2009-09-08 CN CN200920222411XU patent/CN201492502U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103519885A (en) * | 2013-09-18 | 2014-01-22 | 上海慧达医疗器械有限公司 | Multifunctional catheter with height selectivity in renal artery |
| CN103519885B (en) * | 2013-09-18 | 2016-03-30 | 上海慧达医疗器械有限公司 | A kind of renal artery inner height optionally Multifunctional catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Control handle and omnidirectional controllable bending radio frequency ablation guide tube Effective date of registration: 20101222 Granted publication date: 20100602 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2010990001019 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20111223 Granted publication date: 20100602 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2010990001019 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Control handle and omnidirectional controllable bending radio frequency ablation guide tube Effective date of registration: 20120105 Granted publication date: 20100602 Pledgee: Zhongguancun Beijing science and technology Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2012990000008 |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 101111 Beijing branch of Beijing economic and Technological Development Zone Street No. 100 block C Patentee after: Synpatic Medical Technology (Beijing) Co., Ltd. Address before: 100085, 2 floor, building 1, No. four, 3 Street, Beijing, Haidian District Patentee before: Synpatic Medical Technology (Beijing) Co., Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20140905 Granted publication date: 20100602 Pledgee: Zhongguancun Beijing technology financing Company limited by guarantee Pledgor: Synpatic Medical Technology (Beijing) Co., Ltd. Registration number: 2012990000008 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20140905 Registration number: 2012990000008 Pledgee after: Zhongguancun Beijing technology financing Company limited by guarantee Pledgee before: Zhongguancun Beijing science and technology Company limited by guarantee |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |