CN203915066U - A kind of medical catheter head end that can measuring pressure - Google Patents
A kind of medical catheter head end that can measuring pressure Download PDFInfo
- Publication number
- CN203915066U CN203915066U CN201420301029.9U CN201420301029U CN203915066U CN 203915066 U CN203915066 U CN 203915066U CN 201420301029 U CN201420301029 U CN 201420301029U CN 203915066 U CN203915066 U CN 203915066U
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- deformable body
- head end
- electrode tip
- medical catheter
- catheter head
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- 230000003287 optical effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229920000715 Mucilage Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000002679 ablation Methods 0.000 abstract description 11
- 238000001356 surgical procedure Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001053 orthosympathetic effect Effects 0.000 description 3
- 238000007674 radiofrequency ablation Methods 0.000 description 3
- 206010030113 Oedema Diseases 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010003658 Atrial Fibrillation Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 210000002321 radial artery Anatomy 0.000 description 1
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Surgical Instruments (AREA)
Abstract
This utility model relates to technical field of medical instruments, a kind of medical catheter head end that can measuring pressure is disclosed, it comprises the electrode tip of being located at end of conduit, and be connected with described electrode tip for calculating the device for measuring force of the stressed size and Orientation of described electrode tip, described device for measuring force comprises and can and be located at a plurality of strain transducers on described deformable body according to the deformable body of stressed variation generation deformation, a plurality of described strain transducers are arranged on the surrounding of described deformable body along the length direction of described deformable body, described deformable body and described electrode tip are fixed together.This utility model can improve the safety of radio-frequency (RF) ablation operation, for doctor provides the force data support that reclines reliably.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of medical catheter head end that can measuring pressure.
Background technology
In medical treatment intervene operation, radio frequency ablation catheter has had extensive use at present, and it is mainly used in the treatment of the diseases such as heart atrial fibrillation, arrhythmia, intractable hypertension.Its using method is by puncture on femoral artery or radial artery, radio frequency ablation catheter inserted to heart by blood vessel or be rich in orthosympathetic tremulous pulse under X-ray machine auxiliary, and lesions position is carried out to radio-frequency (RF) ablation.
Current this ablative surgery is completed by experienced doctor's manual operation, because staff is difficult to control accurately the recline power of conduit head end to tissue, so often there is the complication of perforation and edema to occur in heart and tremulous pulse ablative surgery.So can reduce in the urgent need to a kind of the conduit that has the complication of perforation and edema to occur in the market.
Utility model content
(1) technical problem that will solve
This utility model object is to provide a kind of medical catheter head end that can measuring pressure, and it can improve the safety of radio-frequency (RF) ablation operation, for doctor provides the force data support that reclines reliably.
(2) technical scheme
In order to solve the problems of the technologies described above, this utility model provides a kind of medical catheter head end that can measuring pressure, it comprises the electrode tip of being located at end of conduit, and be connected with described electrode tip for calculating the device for measuring force of the stressed size and Orientation of described electrode tip, described device for measuring force comprises and can and be located at a plurality of strain transducers on described deformable body according to the deformable body of stressed variation generation deformation, a plurality of described strain transducers are arranged on the surrounding of described deformable body along the length direction of described deformable body, and one end of described deformable body extends into the inside of described electrode tip, be fixed together with described electrode tip.
Wherein, described device for measuring force also comprises trocar sheath, and described deformable body and a plurality of strain transducer are sleeved in described trocar sheath, and one end of described trocar sheath and the sealing of the outer wall of described electrode tip are docking together.
Wherein, described deformable body comprises distortion main body and is located at the radially boss at described distortion main body two ends, described distortion main body is cylindric, described radially boss is in the form of annular discs, described in two, be radially upwards evenly equipped with respectively the through hole that a plurality of sizes are identical, position is relative in the card of boss week, described strain transducer respectively along the length direction of described deformable body through the through hole of correspondence on boss radially described in two.
Wherein, the external diameter size of the aperture of described through hole and described strain transducer adapts, and will after described strain transducer prestretching, by mucilage sealing, be contained in described through hole.
Wherein, the quantity of described strain transducer is a plurality of, radially also has the through hole of respective numbers on boss described in correspondingly.
Wherein, described strain transducer is optical strain sensor, the grating of described optical strain sensor be partly cemented in two described in radially between boss.
Wherein, in described electrode tip, be provided with the first temperature sensor.
Wherein, the length direction of described deformable body is provided with along described distortion body shaft to the cavity arranging, and is provided with the second temperature sensor in described cavity.
Wherein, be also welded with electrode wires in described electrode tip, the electrode wires of described electrode wires and the first temperature sensor and the electrode wires of the second temperature sensor are connected to the outside of trocar sheath by the cavity of described deformable body.
Wherein, described deformable body adopts and has elastic hard material and make.
(3) beneficial effect
Compared with prior art, the utlity model has following advantage:
This utility model provides a kind of medical catheter head end that can measuring pressure, by electrode tip is connected with device for measuring force, be applied on radio frequency ablation catheter, by measuring conductor housing end in contact heart or being rich in the force value of orthosympathetic arterial tissue and guaranteeing in the numerical range of safety, to be used for improving the safety of radio-frequency (RF) ablation operation;
In ablative surgery, can judge depth of ablation by measuring the force value of conduit head end and contact tissue, for selecting rational ablation power and time, doctor provides reliable Data support;
Described device for measuring force comprises and can and be located at a plurality of strain transducers on described deformable body according to the deformable body of stressed variation generation deformation, a plurality of described strain transducers are arranged on the surrounding of described deformable body along the length direction of described deformable body, described deformable body and described electrode tip are fixed together, when described electrode tip is stressed, will there is deformation in the described deformable body being fixed together with described electrode tip, now can change the stressed size and Orientation of determining electrode tip by the difference of a plurality of strain transducers, can greatly improve certainty of measurement.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of medical catheter head end that can measuring pressure of this utility model;
Fig. 2 is that a kind of medical catheter head end that can measuring pressure of this utility model is removed the structural representation of outer tube;
Fig. 3 is the whole cutaway view of a kind of medical catheter head end that can measuring pressure of this utility model;
Fig. 4 is the structural representation of the force cell of a kind of medical catheter head end that can measuring pressure of this utility model;
Fig. 5 is the structural representation of the deformable body of a kind of medical catheter head end that can measuring pressure of this utility model;
Fig. 6 is the left view of the deformable body in Fig. 5;
In Fig. 7, a and b are respectively the schematic diagram of contrast before and after the stress deformation of force cell of a kind of medical catheter head end that can measuring pressure of this utility model.
In figure: 1: electrode tip; 11: abutting edge; 2: trocar sheath; 3: strain transducer; 31: grating; 310: the first gratings; 311: the second gratings; 310 ': the first grating after distortion; 311 ': the second grating after distortion; 32: non-grating leading portion part; Temperature sensor in 33: the second; 34: non-grating back segment part; 4: device for measuring force; 41: deformable body; 410: cavity; 411: boss radially; 412: distortion main body; 413: through hole; Temperature sensor in 5: the first; 6: electrode wires.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following instance is used for illustrating this utility model, but is not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only this utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only for describing object, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in this utility model.
In addition,, in description of the present utility model, except as otherwise noted, the implication of " a plurality of ", " many ", " many groups " is two or more.
As depicted in figs. 1 and 2, a kind of medical catheter head end that can measuring pressure providing for this utility model, be mainly used in radio-frequency (RF) ablation operation, it comprises the electrode tip 1 of being located at end of conduit, and be connected with described electrode tip 1 for calculating the device for measuring force 4 of described electrode tip 1 stressed size and Orientation, described device for measuring force 4 comprises and can and be located at a plurality of strain transducers 3 on described deformable body 41 according to the deformable body 41 of stressed variation generation deformation, a plurality of described strain transducers 3 are arranged on the surrounding of described deformable body 41 along the length direction of described deformable body 41, and one end of one end of described deformable body 41 and a plurality of described strain transducers 3 extends into respectively the inside of described electrode tip 1, by the binding agents such as glue and described electrode tip 1, be fixed together, when described electrode tip 1 is stressed, will there is deformation in the described deformable body 41 being fixed together with described electrode tip 1, now can change the stressed size and Orientation of determining electrode tip 1 because of the difference of stressed generation by a plurality of strain transducers 3, and finally by demodulated equipment, strain signal is read out, make when intervene operation the accurately force value of measuring guide electrode tip 1 diverse location contact tissue, for instructing the doctor can be safer when the intervene operation, Data support is provided effectively, especially when ablative surgery, the pressure energy that reclines of conduit head end characterizes the contact area of conduit head end indirectly, and depth of ablation, melts wound surface size etc., makes the operation that completes that interposing catheter can be safer and more effective.
Described device for measuring force 4 also comprises trocar sheath 2; described deformable body 41 and a plurality of strain transducer 3 are sleeved in described trocar sheath 2; described deformable body 41 and a plurality of strain transducer 3 that 2 pairs of described trocar sheaths are arranged on its inside play a protective role; the outer wall sealing of one end of described trocar sheath 2 and described electrode tip 1 is docking together; preferably adopt glue to bond together; make described trocar sheath 2 and electrode tip 1 form an integral body, to guarantee abutting edge 11 no leakages.
As shown in Fig. 3-Fig. 6, described deformable body 41 is preferably the hollow pipe of dumbbell shape, its material employing has elastic hard material and makes, the material of preferred elastomeric modulus between 4GPa～5GPa, and require it there is small creep compliance or there is no creep properties, described deformable body 41 comprises distortion main body 412 and is located at the radially boss 411 at described distortion main body 412 two ends, described distortion main body 412 is cylindric, described radially boss 411 is in the form of annular discs, described in two, be radially evenly equipped with respectively a plurality of sizes on the card circumferencial direction of boss 411 identical, the through hole 413 that position is relative, described strain transducer 3 respectively along the length direction of described deformable body 41 through corresponding through hole 413 on boss 411 radially described in two, the external diameter size of the aperture of described through hole 413 and described strain transducer 3 adapts, to after described strain transducer 3 prestretchings, by mucilage sealing, be contained in described through hole 413, to described strain transducer 3 is fixed in described through hole 413 better, by described strain transducer 3 prestretchings, to guarantee that itself and through hole 413 have certain internal stress after fixed.
The quantity of described strain transducer 3 is a plurality of, correspondingly, radially also there is the through hole 413 of respective numbers on boss 411, as depicted in figs. 1 and 2, adopting quantity is the described strain transducer 3 of four, and it can enough measure the distortion of described deformable body 41 surrounding all directions and stressed.
Preferably, described strain transducer 3 is optical strain sensor 3, grating 31 parts of described optical strain sensor 3 by glue, be cemented in two described in radially between boss 411, described non-grating leading portion part 32 extends into described electrode tip 1 inside, be fixedly connected with described electrode tip 1, described non-grating back segment part 34, through described through hole 413, is positioned at described trocar sheath 2, and this kind of structure can make grating 31 measurement deformation more accurate.
Wherein, be provided with the first temperature sensor 5 in described electrode tip 1, described the first temperature sensor 5 is for the temperature of measurement electrode 1.
Wherein, the length direction of described deformable body 41 is provided with the cavity 410 along the axial setting of described distortion main body 412, in described cavity 410, be provided with the second temperature sensor 33, described the second temperature sensor 33 is for the impact of calibration temperature pair of strain sensors 3, because 3 pairs of temperature of strain transducer are comparatively responsive, so must remove the impact of temperature pair of strain sensors 3, preferably adopt electricity temperature sensor, the precision of strain transducer 3 is promoted greatly.
As shown in Figure 3, in described electrode tip 1, be also welded with electrode wires 6, the electrode wires of described electrode wires 6 and the first temperature sensor 5 and the electrode wires of the second temperature sensor 33 are connected to the outside of trocar sheath 2 by the cavity 410 of described deformable body 41, be connected with adapter, for the temperature signal of sensing is transferred to adapter.
As shown in Figure 7, figure a is the schematic diagram before deformable body 41 distortion, can see that the first grating 310 is consistent with the second grating 311 length, and keeps straight line parallel; Figure b is the schematic diagram after the stressed F distortion of deformable body 41, can see that bending has all occurred for the first grating 310 ' after distortion and the second grating 311 ' after distortion, the first grating 310 ' after distortion is obviously elongated than the first grating 310, and the second grating 311 ' after otherwise deformed has obviously shortened than the second grating 311, there is different variations in the grating by diverse location, just can extrapolate the stressed size and Orientation of electrode tip 1.
This utility model is by measuring conductor housing end in contact heart or being rich in the pressure of orthosympathetic arterial tissue, to guarantee in the scope of safety, to be used for improving the safety of radio-frequency (RF) ablation operation; In ablative surgery, can judge depth of ablation by measuring the pressure of conduit head end and contact tissue, for selecting rational ablation power and time, doctor provides reliable Data support.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
- One kind can measuring pressure medical catheter head end, it is characterized in that, comprise the electrode tip of being located at end of conduit, and be connected with described electrode tip for calculating the device for measuring force of the stressed size and Orientation of described electrode tip, described device for measuring force comprises and can and be located at a plurality of strain transducers on described deformable body according to the deformable body of stressed variation generation deformation, a plurality of described strain transducers are arranged on the surrounding of described deformable body along the length direction of described deformable body, described deformable body and described electrode tip are fixed together.
- 2. medical catheter head end that can measuring pressure as claimed in claim 1, it is characterized in that, described device for measuring force also comprises trocar sheath, and described deformable body and a plurality of strain transducer are sleeved in described trocar sheath, and one end of described trocar sheath and the sealing of the outer wall of described electrode tip are docking together.
- 3. medical catheter head end that can measuring pressure as claimed in claim 2, it is characterized in that, described deformable body comprises distortion main body and is located at the radially boss at described distortion main body two ends, described distortion main body is cylindric, described radially boss is in the form of annular discs, described in two, be radially upwards evenly equipped with respectively the through hole that a plurality of sizes are identical, position is relative in the card of boss week, described strain transducer respectively along the length direction of described deformable body through the through hole of correspondence on boss radially described in two.
- 4. medical catheter head end that can measuring pressure as claimed in claim 3, is characterized in that, the external diameter size of the aperture of described through hole and described strain transducer adapts, and will after described strain transducer prestretching, by mucilage sealing, be contained in described through hole.
- 5. medical catheter head end that can measuring pressure as claimed in claim 4, is characterized in that, the quantity of described strain transducer is a plurality of, radially also has the through hole of respective numbers on boss described in correspondingly.
- 6. medical catheter head end that can measuring pressure as claimed in claim 5, is characterized in that, described strain transducer is optical strain sensor, the grating of described optical strain sensor be partly cemented in two described in radially between boss.
- 7. medical catheter head end that can measuring pressure as claimed in claim 6, is characterized in that, is provided with the first temperature sensor in described electrode tip.
- 8. medical catheter head end that can measuring pressure as claimed in claim 7, is characterized in that, the length direction of described deformable body is provided with along described distortion body shaft to the cavity arranging, and is provided with the second temperature sensor in described cavity.
- 9. medical catheter head end that can measuring pressure as claimed in claim 8, it is characterized in that, in described electrode tip, be also welded with electrode wires, the electrode wires of described electrode wires and the first temperature sensor and the electrode wires of the second temperature sensor are connected to the outside of trocar sheath by the cavity of described deformable body.
- 10. medical catheter head end that can measuring pressure as claimed in claim 1, is characterized in that, described deformable body adopts to be had elastic hard material and make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301029.9U CN203915066U (en) | 2014-06-06 | 2014-06-06 | A kind of medical catheter head end that can measuring pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301029.9U CN203915066U (en) | 2014-06-06 | 2014-06-06 | A kind of medical catheter head end that can measuring pressure |
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| CN203915066U true CN203915066U (en) | 2014-11-05 |
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|---|---|---|---|
| CN201420301029.9U Expired - Lifetime CN203915066U (en) | 2014-06-06 | 2014-06-06 | A kind of medical catheter head end that can measuring pressure |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825234A (en) * | 2015-05-15 | 2015-08-12 | 四川锦江电子科技有限公司 | Detecting method and device for attaching of multi-electrode ablation catheter to heart tissue |
| CN105147388A (en) * | 2015-09-30 | 2015-12-16 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
| CN105167839A (en) * | 2014-06-06 | 2015-12-23 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring pressure |
| CN105232141A (en) * | 2015-09-30 | 2016-01-13 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
| CN106264708A (en) * | 2015-05-27 | 2017-01-04 | 乐普（北京）医疗器械股份有限公司 | A kind of catheter pressure strained detection device |
| CN106308921A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having pressure detection function |
| CN106606373A (en) * | 2016-08-30 | 2017-05-03 | 四川锦江电子科技有限公司 | Ablation catheter capable of accurate pressure measurement |
| CN106768500A (en) * | 2017-01-23 | 2017-05-31 | 湖南埃普特医疗器械有限公司 | A kind of medical catheter device for pressure measurement |
| CN106806016A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of ablating device |
| CN106806017A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of accurate measurement power and the conduit in direction |
| CN106806018A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of ablation catheter |
| WO2017097200A1 (en) * | 2015-12-11 | 2017-06-15 | 上海微创电生理医疗科技股份有限公司 | Electrophysiology catheter |
| CN109431595A (en) * | 2019-01-28 | 2019-03-08 | 上海导向医疗系统有限公司 | The flexible freezing ablation needle device of low temperature resistant high pressure |
| CN111973860A (en) * | 2019-05-21 | 2020-11-24 | 上海微创医疗器械（集团）有限公司 | Medical device and medical catheter thereof |
| CN117257438A (en) * | 2023-11-21 | 2023-12-22 | 梅奥心磁(杭州)医疗科技有限公司 | Dual-energy mapping ablation catheter |
-
2014
- 2014-06-06 CN CN201420301029.9U patent/CN203915066U/en not_active Expired - Lifetime
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| CN105167839A (en) * | 2014-06-06 | 2015-12-23 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring pressure |
| CN104825234A (en) * | 2015-05-15 | 2015-08-12 | 四川锦江电子科技有限公司 | Detecting method and device for attaching of multi-electrode ablation catheter to heart tissue |
| CN106264708A (en) * | 2015-05-27 | 2017-01-04 | 乐普（北京）医疗器械股份有限公司 | A kind of catheter pressure strained detection device |
| CN106308921A (en) * | 2015-06-30 | 2017-01-11 | 四川锦江电子科技有限公司 | Ablation device having pressure detection function |
| CN105147388A (en) * | 2015-09-30 | 2015-12-16 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
| CN105232141A (en) * | 2015-09-30 | 2016-01-13 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
| CN105232141B (en) * | 2015-09-30 | 2018-03-13 | 乐普（北京）医疗器械股份有限公司 | A kind of medical catheter head end for surveying contact force |
| CN105147388B (en) * | 2015-09-30 | 2018-02-23 | 乐普（北京）医疗器械股份有限公司 | Medical catheter head end capable of measuring contact force |
| CN106806017B (en) * | 2015-12-01 | 2019-08-27 | 四川锦江电子科技有限公司 | A kind of conduit of precise measurement power and direction |
| CN106806016A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of ablating device |
| CN106806017A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of accurate measurement power and the conduit in direction |
| CN106806018A (en) * | 2015-12-01 | 2017-06-09 | 四川锦江电子科技有限公司 | A kind of ablation catheter |
| CN106859762A (en) * | 2015-12-11 | 2017-06-20 | 上海微创电生理医疗科技有限公司 | Electrophysiologicalcatheter catheter |
| WO2017097200A1 (en) * | 2015-12-11 | 2017-06-15 | 上海微创电生理医疗科技股份有限公司 | Electrophysiology catheter |
| CN106859762B (en) * | 2015-12-11 | 2020-01-24 | 上海微创电生理医疗科技有限公司 | Electrophysiology catheter |
| CN106606373B (en) * | 2016-08-30 | 2019-02-12 | 四川锦江电子科技有限公司 | A kind of ablation catheter of accurate dynamometry |
| CN106606373A (en) * | 2016-08-30 | 2017-05-03 | 四川锦江电子科技有限公司 | Ablation catheter capable of accurate pressure measurement |
| CN106768500A (en) * | 2017-01-23 | 2017-05-31 | 湖南埃普特医疗器械有限公司 | A kind of medical catheter device for pressure measurement |
| CN109431595A (en) * | 2019-01-28 | 2019-03-08 | 上海导向医疗系统有限公司 | The flexible freezing ablation needle device of low temperature resistant high pressure |
| CN109431595B (en) * | 2019-01-28 | 2019-04-26 | 上海导向医疗系统有限公司 | The flexible freezing ablation needle device of low temperature resistant high pressure |
| CN111973860A (en) * | 2019-05-21 | 2020-11-24 | 上海微创医疗器械（集团）有限公司 | Medical device and medical catheter thereof |
| WO2020233672A1 (en) * | 2019-05-21 | 2020-11-26 | 上海佐心医疗科技有限公司 | Medical device and medical catheter thereof |
| CN117257438A (en) * | 2023-11-21 | 2023-12-22 | 梅奥心磁(杭州)医疗科技有限公司 | Dual-energy mapping ablation catheter |
| CN117257438B (en) * | 2023-11-21 | 2024-02-06 | 梅奥心磁(杭州)医疗科技有限公司 | Dual-energy mapping ablation catheter |
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