CN204636529U - A kind of modular catheter and adopt the radio frequency ablation catheter of this handle - Google Patents
A kind of modular catheter and adopt the radio frequency ablation catheter of this handle Download PDFInfo
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- CN204636529U CN204636529U CN201520186063.0U CN201520186063U CN204636529U CN 204636529 U CN204636529 U CN 204636529U CN 201520186063 U CN201520186063 U CN 201520186063U CN 204636529 U CN204636529 U CN 204636529U
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- tumbler
- driving member
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- base plate
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Abstract
The utility model discloses a kind of modular catheter and adopt the radio frequency ablation catheter of this handle, described radio frequency ablation catheter comprises the conduit be connected successively can curved segment, catheter main body section and modular catheter, described conduit the top of curved segment can be provided with tip electrode, be provided with bracing wire in described conduit, in described modular catheter, be provided with handle casing; Be arranged at the control base plate in described handle casing, the first tumbler, the second tumbler and the 3rd driving member, wherein said first tumbler is fixed on described control base plate, described second tumbler is fixed on described 3rd driving member, and described first tumbler coordinates with described second tumbler transmission; And bracing wire, be arranged at movably in described handle casing under the effect of described 3rd driving member.Controlling base plate drives the first driving member to rotate, and then drives the 3rd driving member to rotate, and realizes catheter proximal end deflection; The lower house of handle casing arranges stop screw, can adjustment cam effective travel, and then realize asymmetric two curved.
Description
Technical field
This utility model relates to a kind of medical electrode conduit and handle thereof, particularly relates to a kind of modular catheter and adopts the radio frequency ablation catheter of this handle.
Background technology
Cardiovascular catheters, has been widely used in medical practice at present, and it is mainly used in the electricity physiological signal recording each position of cardiovascular, carries out electricity irritation and melts pathogenic tissue, thus reach the object to cardiovascular disease mapping and treatment to cardiovascular.First its using method punctures femoral vein blood vessel or internal jugular vein blood vessel, under radioscopy, along lumen of vessels, cardiovascular catheters is delivered to cardiovascular diverse location, carries out electrophysiologic study, mapping or radio-frequency (RF) ablation to cardiovascular.
In clinical practice, more easily can arrive for making cardiovascular catheters and organize different parts, and do not need to manipulate adjustment position continually, its preferred bicoudate catheter, bicoudate catheter can two-way control curved, without the need to rotary guide pipe repeatedly, asymmetric two curvedly have the curved of two kinds of different sizes on a conduit, more can tackle complex anatomy, and a conduit can work as two uses, more economical; But for some position of the chambers of the heart, need large curved conductor, its corresponding cable travel should be very large; This opponent proposes higher requirement design, on content with funtion basis, should hands suitable for the curved power of control, stroke is as far as possible large again.By two-way control bending of the hand two bracing wires of control head electrode, conduit is made to reach two curved effect.
Therefore, be necessary very much to provide suitable, that structure is simple, control accuracy the is high Long Distances of the curved power of a kind of clinical control two-way asymmetric adjustable bending handle.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of modular catheter and adopts the radio frequency ablation catheter of this handle, can the two-way asymmetric adjustment conduit of Long Distances can curved segment, and the curved power of clinical control is suitable, structure is simple, control accuracy is high.
This utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of modular catheter, comprising: handle casing; Be arranged at the control base plate in described handle casing, the first tumbler, the second tumbler and the 3rd driving member, wherein said first tumbler is fixed on described control base plate, described second tumbler is fixed on described 3rd driving member, and described first tumbler coordinates with described second tumbler transmission; And bracing wire, be arranged at movably in described handle casing under the effect of described 3rd driving member.
Further, described control base plate is plectrum, and described first tumbler is the first gear, and described second tumbler is the second gear, and described 3rd driving member is cam.
Further, described control base plate is driver plate, and described first tumbler is the first friction pulley, and described second tumbler is the second friction pulley, and described 3rd driving member is cam.
Further, the center of rotation of described control base plate, described first tumbler, described second tumbler and described 3rd driving member is located on the same line.
Further, described control base plate is in the form of annular discs, and the both sides of described control base plate are provided with handle, operate for user.
Further, also comprise surely curved knob and hold-down screw, the center of rotation of described control base plate and described first tumbler is provided with through hole, described fixed curved knob is arranged at the upper shell of described handle casing, the lower house of described handle casing is fixed in one end of described hold-down screw, the other end, through described through hole, coordinates with described fixed curved knob thread.
Further, also comprise at least one pair of stop screw, described control base plate is provided with a pair spacing slotted eye, described spacing slotted eye is arranged at the both sides of the center of rotation of described control base plate symmetrically, and described stop screw is removable installed in described spacing slotted eye respectively.
Further, described control base plate and described first driving member are formed in one.
Further, described second driving member and described 3rd driving member are formed in one.
Further, also comprise a pair bracing wire shelves post, be arranged on described handle casing, lay respectively at the both sides of described 3rd driving member.
Further, also comprise the first prompting portion, described first prompting portion is arranged at the both sides of described 3rd driving member, and in the rotation process of described 3rd driving member, described 3rd driving member and described first prompting portion come in contact.
Further, described first prompting portion is shell fragment.
Further, described handle casing also offers a pair bracing wire protector.
Further, also comprise the second prompting portion, described second prompting portion is arranged at the dead ahead of described cam, and when described cam is positioned at initial position, described second prompting portion contacts with described cam.
Further, described second prompting portion is contact wheel, is arranged at the dead ahead of cam by elastic component.
Further, also comprise shunting disk and smooth grommet, be set in turn in the distal portions of described modular catheter.
This utility model is solve the problems of the technologies described above another technical scheme adopted to be to provide a kind of radio frequency ablation catheter, comprising the conduit be connected successively can curved segment, catheter main body section and modular catheter, described conduit the top of curved segment can be provided with tip electrode, described bracing wire is provided with in described conduit, wherein, described modular catheter is above-mentioned modular catheter, and one end of described bracing wire is fixed on described cam side, and the other end of described bracing wire is fixed on described tip electrode.
Further, the one end be connected with described tip electrode in described bracing wire is provided with stainless steel tube, and described bracing wire is connected with stainless steel tube, and described stainless steel tube is connected with tip electrode.
Further, have at least four chambeies in described conduit, wherein the first intracavity and the 4th intracavity are equipped with described bracing wire; Second intracavity is provided with Brine Pipe, and for pouring into saline, the 3rd intracavity is provided with wire and temp.-sensing wire.
Further, described conduit can be provided with spring in curved segment, and the outside of described spring is coated with pogo barrel.
Further, described conduit the inner surface of multi-lumen tube of curved segment can be provided with double braid silk.
This utility model contrast prior art has following beneficial effect: the modular catheter that this utility model provides and adopt the radio frequency ablation catheter of this handle, a bracing wire is fixed by each in the 3rd tumbler both sides, first driving member and the second driving member transmission coordinate, second driving member and the 3rd driving member are integrated, wherein controlling base plate drives the first driving member to rotate, and then drive the 3rd driving member to rotate, realize catheter proximal end deflection; Particularly hands is the lower house of shell being arranged four stop screws, and by regulating stop screw position, restriction controls the base plate anglec of rotation, can regulate the 3rd driving member effective travel, and then realizes asymmetric two curved; Hands the upper shell of shell being arranged surely curved knob, by surely curved knob can regulable control base plate and hands frictional force size between shell, realize the different elasticities that bracing wire is fixed curved, doctor's choice for use can be provided; Hands is equipped with sound the curved special bit of control and reminds, and facilitates conduit to manipulate conduit, is designed with the object being easier in the operative catheter process of this handle enter cardiovascular target site, reach better radio-frequency (RF) ablation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the radio frequency ablation catheter in this utility model embodiment;
Fig. 2 (a) is the generalized section along A-A in Fig. 1; Fig. 2 (b) is B place enlarged diagram in Fig. 1;
Fig. 3 is the modular catheter structural representation in this utility model embodiment;
Fig. 4 is the generalized section along C-C in Fig. 3;
Fig. 5 is the structural representation of modular catheter lower casing in this utility model embodiment;
Fig. 6 is the structural representation controlling bender structure in this utility model embodiment.
In figure:
1 modular catheter 2 catheter main body section 3 conduit can curved segment
4 ring electrode 5 tip electrode 6 stainless steel tubes
7 Brine Pipe 8 bracing wire 9 temp.-sensing wires
10 tip electrode wire 11 ring electrode wire 12 multi-lumen tube
13 outer tube 14 spring 15 pogo barrels
The smooth grommet 18 of 16 shunting disk 17 controls base plate
19 fixed curved knob 20 buttock line socket 21 gear wheels
22 hold-down screw 23 pinion 24 cams
The spacing slotted eye of 25 cam 26 stop screw 27
28 bracing wire shelves post 29 bracing wire protector 30 shell fragments
31 chamber, handle 32 first chambeies 33 second
34 the 3rd chamber 36, chamber 35 the 4th through holes
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the structural representation of the radio frequency ablation catheter in this utility model embodiment.
Refer to Fig. 1, the radio frequency ablation catheter that this utility model provides comprises modular catheter 1, catheter main body section 2, conduit can curved segment 3, ring electrode 4 and tip electrode 5, modular catheter 1, catheter main body section 2 and conduit can curved segment 3 be connected successively, tip electrode 5 is arranged at conduit can the top of curved segment 3, also the distalmost end of i.e. whole radio frequency ablation catheter, multiple ring electrode 4 is set in turn in conduit can in curved segment 3.
Fig. 2 (a) is the generalized section along A-A in Fig. 1; Fig. 2 (b) is B place enlarged diagram in Fig. 1.
Refer to Fig. 2 (a), the radio frequency ablation catheter that this utility model provides is multi-lumen tube, has four chambeies, is wherein equipped with bracing wire 8 in the first chamber 32 and the 4th chamber 35; Be provided with Brine Pipe 7 in second chamber 33, Brine Pipe 7, for pouring into saline, can reach the effect cooled to tip electrode 5; Tip electrode wire 10, ring electrode wire 11 and temp.-sensing wire 9 is provided with in 3rd chamber 34; Temp.-sensing wire 9 is connected with the temperature sensor below tip electrode 5, can accurate detecting electrode temperature; Tip electrode wire 10 is connected with tip electrode 5, and ring electrode wire 11 is connected with ring electrode 4, can extract electricity physiological signal; In the present embodiment, one end that bracing wire 8 is connected with electrode is provided with stainless steel tube 6, bracing wire 8 and both stainless steel tubes 6 matched in clearance, be connected by electric resistance welding, stainless steel tube 6 and tip electrode 5 are welded by solder stick in addition, thus realize one end union joint electrode 5 of bracing wire 8 and other end connecting duct handle 1, by the control bender structure on joystick 1, realize the bilateral deflection of the adjustable curved segment of conduit.
Refer to Fig. 2 (b), conduit curved segment 3 can comprise multi-lumen tube 12, spring 14 and pogo barrel 15; Wherein spring 14 be arranged on conduit can curved segment 3 place; bracing wire 8 is by spring 14; stress spread effect is played in spring 14 pairs of bracing wires 8, and pogo barrel 15 is coated on the outer surface of spring 14 in addition, plays protection spring 14 and reduces the effect that rubs between spring 14 and multi-lumen tube 12, outer tube 13.In addition, conduit the multi-lumen tube inner surface of curved segment can imbed double braid silk (not shown), thus effectively improve the recovery of the adjustable curved segment of conduit and control curved handling.Catheter main body section 2 comprises outer tube 13, and multi-lumen tube is connected with outer tube 13, thus conduit can curved segment 3 be connected with catheter main body section 2.
Fig. 3 is the modular catheter structural representation in this utility model embodiment; Fig. 4 is the generalized section along C-C in Fig. 3; Fig. 5 is the structural representation of modular catheter lower casing in this utility model embodiment.
Below introduce the control bender structure on the joystick 1 in the present embodiment.Refer to Fig. 3 to Fig. 5, in the present embodiment, modular catheter 1 comprises shunting disk 16, smooth grommet 17, plectrum 18 and fixed curved knob 19; Preferably, control base plate 18 in the form of annular discs, the both sides controlling base plate 18 are provided with handle 31, operate for user.The center of rotation controlling base plate 18 is provided with through hole 36, hold-down screw 22 is provided with in through hole 36, fixed curved knob 19 corresponds to through hole 36, be arranged in the groove of the upper shell of modular catheter 1, the lower house of modular catheter is fixed in hold-down screw 22 one end, the other end is through controlling base plate 18 and being connected with surely curved knob 19 threaded engagement, namely the head end external screw thread of hold-down screw 22 is connected with the female thread (not shown) coupling of fixed curved knob 19, therefore, by rotating surely curved knob 19, the degree of depth that hold-down screw 22 enters surely curved knob 19 can be changed, regulable control base plate 18 and lower casing frictional force size on handle, realize bracing wire fixed curved.
Shunting disk 16 pairs of Brine Pipes 7, bracing wire 8, wire 10 enter hands front shunting, play protection be not wound around effect to it; Smooth grommet 17 is arranged on the far-end of modular catheter 1, and smooth grommet 17 is arranged on the below of shunting disk 16, and smooth grommet 17 has smooth material characteristic, has protection Brine Pipe 7 and acts on.
Refer to Fig. 4, gear wheel 21, pinion 23 and cam 24 is provided with in modular catheter 1, one end of bracing wire 8 is fixed on cam 24 or cam 24 rear, as long as can be driven by cam 24 in cam 24 rotary course, the other end of bracing wire 8 is fixed on tip electrode 5.Gear wheel 21 is fixed on and controls on base plate 18, and gear wheel 21 is connected with pinion 23 engagement, and pinion 23 is fixed on cam 24, and preferably, gear wheel 21 is one with controlling base plate 18, and pinion 23 and cam 24 are in one.The dead ahead of cam 24 is provided with contact wheel 25.Contact wheel 25 is arranged at the dead ahead of cam 24 by elastic link or flexure strip, and when cam 24 is in rotation, when returning to initial middle position, cam 24 contacts with contact wheel 25, sends the sound, reminds and recovers initial position to patient's bracing wire.
Shell fragment 30 is also provided with in modular catheter 1, preferably, two shell fragments 30 are arranged at the both sides of cam 24 respectively, in cam 24 rotation process, when cam 24 forwards two side positions to, cam 24 can contact with shell fragment, along with shell fragment 30 deformation quantity increases, shell fragment 30 sends sound, reminds to the curved near extreme position of patient's bracing wire control, to improve the safety of operation.The tail end of modular catheter 1 is provided with buttock line socket 20.Stirring plectrum 18 drives gear wheel 21 to rotate, gear wheel 21 engages with pinion 23, increase gear ratio, pinion 23 and cam 24 are integrated, thus realize cam 24 and deflect, and then the bracing wire deflection of band moving cam both sides, by size gears meshing and cam control bender structure, increase effectively bracing wire effective travel, facilitate doctor to the selection of large curved conductor.
Refer to Fig. 5, the lateral symmetry controlling intermediate throughholes 36 on base plate 18 is provided with spacing slotted eye 27, is provided with stop screw 26 in spacing slotted eye 27.Wherein stop screw 26 is removably through lower house or the lower house of hands handle, be arranged in spacing slotted eye 27, by changing the position of stop screw 26 in spacing slotted eye 27, the position of base plate 18 can be controlled by the restriction of this constructive interference, change the anglec of rotation controlling base plate 18, thus reach the curved object of two-way asymmetric control.
Fig. 6 is the structural representation controlling bender structure in this utility model embodiment.
Refer to Fig. 6, handle control bender structure comprises bracing wire 8, gear wheel 21, pinion 23, cam 24, bracing wire shelves post 28, bracing wire protector 29 and shell fragment 30; Wherein bracing wire shelves post 28 is arranged on handle casing, is positioned at the front of cam 24, and bracing wire protector 29 is arranged on handle casing, is positioned at the both sides of cam 24.When controlling curved, bracing wire shelves post 28 forms suitable angle cornerite by bracing wire both sides, and angle cornerite ranges preferably from 45 ° ~ 75 °, and a part of bracing wire is got back in bracing wire protector 29, prevents bracing wire from giving a discount.
In sum, the radio frequency ablation catheter that the present embodiment provides, fixes a bracing wire 8 by each in cam 24 both sides, gear wheel 21 and pinion 23 engage, and pinion 23 and cam 24 are integrated, and wherein plectrum 18 drives gear wheel 21 to rotate, and then band moving cam 24 rotates, realize catheter proximal end deflection; Hands is lower casing there being four stop screws 26, and by regulating the position of stop screw 26, the restriction plectrum anglec of rotation, can adjustment cam effective travel, and then realizes asymmetric two curved; Hands arranges surely curved knob 19 upper casing, by regulating surely curved knob 19 that plectrum 18 and hands can be regulated frictional force size between shell, realizing the different elasticities that bracing wire is fixed curved, can provide doctor's choice for use; In addition, hands has sound to remind the curved initial position of control and left and right terminal location, facilitates conduit to manipulate conduit, is designed with the object being easier in the operative catheter process of this handle enter cardiovascular target site, reach better radio-frequency (RF) ablation.In other embodiments, also can carry out alternative gear wheel by other the first driving members, other second driving members carry out alternative pinion, such as, first driving member and the second driving member are friction pulley, first driving member is pinion, second driving member is gear wheel, and all can realize the purpose of this utility model, this utility model does not limit this.
Although this utility model discloses as above with preferred embodiment; so itself and be not used to limit this utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (21)
1. a modular catheter, is characterized in that, comprising: handle casing; Be arranged at the control base plate in described handle casing, the first tumbler, the second tumbler and the 3rd driving member, wherein said first tumbler is fixed on described control base plate, described second tumbler is fixed on described 3rd driving member, and described first tumbler coordinates with described second tumbler transmission; And bracing wire, be arranged at movably in described handle casing under the effect of described 3rd driving member.
2. modular catheter as claimed in claim 1, it is characterized in that, described control base plate is plectrum, and described first tumbler is the first gear, and described second tumbler is the second gear, and described 3rd driving member is cam.
3. modular catheter as claimed in claim 1, it is characterized in that, described control base plate is driver plate, and described first tumbler is the first friction pulley, and described second tumbler is the second friction pulley, and described 3rd driving member is cam.
4. modular catheter as claimed in claim 1, it is characterized in that, the center of rotation of described control base plate, described first tumbler, described second tumbler and described 3rd driving member is located on the same line.
5. modular catheter as claimed in claim 1, it is characterized in that, described control base plate is in the form of annular discs, and the both sides of described control base plate are provided with handle, operate for user.
6. modular catheter as claimed in claim 1, it is characterized in that, also comprise surely curved knob and hold-down screw, the center of rotation of described control base plate and described first tumbler is provided with through hole, described fixed curved knob is arranged at the upper shell of described handle casing, the lower house of described handle casing is fixed in one end of described hold-down screw, and the other end, through described through hole, coordinates with described fixed curved knob thread.
7. modular catheter as claimed in claim 1, it is characterized in that, also comprise at least one pair of stop screw, described control base plate is provided with a pair spacing slotted eye, described spacing slotted eye is arranged at the both sides of the center of rotation of described control base plate symmetrically, and described stop screw is removable installed in described spacing slotted eye respectively.
8. modular catheter as claimed in claim 1, it is characterized in that, described control base plate and described first driving member are formed in one.
9. modular catheter as claimed in claim 1, it is characterized in that, described second driving member and described 3rd driving member are formed in one.
10. modular catheter as claimed in claim 1, is characterized in that, also comprise a pair bracing wire shelves post, be arranged on described handle casing, lay respectively at the both sides of described 3rd driving member.
11. modular catheters as claimed in claim 1, it is characterized in that, also comprise the first prompting portion, described first prompting portion is arranged at the both sides of described 3rd driving member, in the rotation process of described 3rd driving member, described 3rd driving member and described first prompting portion come in contact.
12. modular catheters as claimed in claim 11, is characterized in that, described first prompting portion is shell fragment.
13. modular catheters as claimed in claim 1, is characterized in that, described handle casing also offers a pair bracing wire protector.
14. modular catheters as claimed in claim 2 or claim 3, is characterized in that, also comprise the second prompting portion, described second prompting portion is arranged at the dead ahead of described cam, and when described cam is positioned at initial position, described second prompting portion contacts with described cam.
15. modular catheters as claimed in claim 1, is characterized in that, described second prompting portion is contact wheel, is arranged at the dead ahead of cam by elastic component.
16. modular catheters according to claim 1, is characterized in that, also comprise shunting disk and smooth grommet, are set in turn in the distal portions of described modular catheter.
17. 1 kinds of radio frequency ablation catheters, comprising the conduit be connected successively can curved segment, catheter main body section and modular catheter, described conduit the top of curved segment can be provided with tip electrode, bracing wire is provided with in described conduit, it is characterized in that, described modular catheter is the modular catheter described in any one of claim 1-16, and one end of described bracing wire is fixed on described cam side, and the other end of described bracing wire is fixed on described tip electrode.
18. radio frequency ablation catheters as claimed in claim 17, it is characterized in that, the one end be connected with described tip electrode in described bracing wire is provided with stainless steel tube, and described bracing wire is connected with stainless steel tube, and described stainless steel tube is connected with tip electrode.
19. radio frequency ablation catheters as claimed in claim 17, is characterized in that having at least four chambeies in described conduit, and wherein the first intracavity and the 4th intracavity are equipped with described bracing wire; Second intracavity is provided with Brine Pipe, and for pouring into saline, the 3rd intracavity is provided with wire and temp.-sensing wire.
20. radio frequency ablation catheters as claimed in claim 17, it is characterized in that, described conduit can be provided with spring in curved segment, and the outside of described spring is coated with pogo barrel.
21. radio frequency ablation catheters as claimed in claim 17, is characterized in that, described conduit the inner surface of multi-lumen tube of curved segment can be provided with double braid silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186063.0U CN204636529U (en) | 2015-03-30 | 2015-03-30 | A kind of modular catheter and adopt the radio frequency ablation catheter of this handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186063.0U CN204636529U (en) | 2015-03-30 | 2015-03-30 | A kind of modular catheter and adopt the radio frequency ablation catheter of this handle |
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|---|---|
| CN204636529U true CN204636529U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520186063.0U Active CN204636529U (en) | 2015-03-30 | 2015-03-30 | A kind of modular catheter and adopt the radio frequency ablation catheter of this handle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137380A (en) * | 2015-03-30 | 2016-11-23 | 上海微创电生理医疗科技有限公司 | A kind of modular catheter and use the radio frequency ablation catheter of this handle |
-
2015
- 2015-03-30 CN CN201520186063.0U patent/CN204636529U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106137380A (en) * | 2015-03-30 | 2016-11-23 | 上海微创电生理医疗科技有限公司 | A kind of modular catheter and use the radio frequency ablation catheter of this handle |
| CN106137380B (en) * | 2015-03-30 | 2019-03-08 | 上海微创电生理医疗科技有限公司 | A kind of modular catheter and the radio frequency ablation catheter using the handle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201318 Shanghai city Pudong New Area zhouputown Tianxiong road 588 Lane No. twenty-eighth 1-28 Patentee after: SHANGHAI MICROPORT EP MEDTECH Co.,Ltd. Address before: 201318 Shanghai city Pudong New Area zhouputown Tianxiong road 588 Lane No. twenty-eighth 1-28 Patentee before: SHANGHAI MICROPORT EP MEDTECH Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |