CN210077651U - Deformable high-precision balloon heart cavity mapping catheter - Google Patents
Deformable high-precision balloon heart cavity mapping catheter Download PDFInfo
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- CN210077651U CN210077651U CN201821836853.9U CN201821836853U CN210077651U CN 210077651 U CN210077651 U CN 210077651U CN 201821836853 U CN201821836853 U CN 201821836853U CN 210077651 U CN210077651 U CN 210077651U
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Abstract
The utility model belongs to the technical field of the medical equipment technique and specifically relates to a flexible high-precision sacculus heart chamber mapping pipe, including the pipe, install the electrode head end in pipe one end and install the handle at the pipe other end, turn right from a left side and set gradually head end electrode pair, middle inflation body and rear end inflation body in the electrode head end, the surface of handle is provided with liquid storage device, and liquid storage device includes the liquid reserve pipe, and the one end of liquid reserve pipe is provided with the drain head, the beneficial effects of the utility model: the deformable high-precision balloon heart cavity mapping catheter is characterized in that a liquid storage device is arranged to inject liquid into the electrode head end, the shape of the whole electrode head end is changed by the expansion of the head end electrode pair, the middle expansion body and the rear end expansion body, the catheter is perfectly attached to each part of the heart, the heart cannot be pushed, repeated bending in the heart cavity is not needed, and high-precision mapping is facilitated.
Description
Technical Field
The utility model relates to the technical field of medical equipment, specifically be a transformable high-precision sacculus heart chamber mapping catheter.
Background
A cardiac chamber mapping catheter is used to construct a cardiac chamber three-dimensional electro-anatomical model. For various kinds of arrhythmia, especially complex arrhythmia, it is important to know the electrical conduction information and anatomical information of each part in the heart cavity to determine the generation mechanism of arrhythmia. For example, in the pulmonary vein electrical isolation operation for treating atrial fibrillation, a left atrial electroanatomic model is required to be constructed, for example, the running direction and the length of a pulmonary vein fasciculus can be mastered by constructing an accurate pulmonary vein vestibular electroanatomic model, and the efficiency of the pulmonary vein electrical isolation operation can be improved.
The existing contact mapping catheters for mapping the heart cavity mainly have 4-10 polar linearity, 10-12 polar annular, 16 polar grid shape and 64 polar blue shape, the number of the contact electrodes between the catheters and the heart cavity is limited, the contact is not good sometimes, and even the heart is pushed, so that the obtained electrical information and anatomical positioning of the heart cavity are not accurate, and the built three-dimensional heart cavity model is not accurate. In view of this, we propose a deformable high-precision balloon heart cavity mapping catheter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a but deformation high accuracy sacculus heart chamber mark survey pipe to the mark survey pipe who provides in solving above-mentioned background art connects angle contact electrode figure with the heart limited, and sometimes contacts not good problem.
In order to achieve the above object, the utility model provides a following technical scheme:
the deformable high-precision balloon heart cavity mapping catheter comprises a catheter, an electrode head end arranged at one end of the catheter and a handle arranged at the other end of the catheter, wherein a tail wire interface is arranged at the bottom of the handle, a head end electrode pair, a middle expansion body and a rear end expansion body are sequentially arranged at the electrode head end from left to right, a plurality of first electrode pairs are arranged on one side, close to the middle expansion body and the rear end expansion body, of the electrode head end, a magnetic sensor is arranged at the surface center position of the head end electrode pair, and a plurality of second electrode pairs are arranged on an annular array on the outer side of the magnetic sensor.
Preferably, each of the first electrode pair and each of the second electrode pair is composed of two microelectrodes, and each of the microelectrodes is connected to one side of the tail interface through a wire.
Preferably, the head electrode pair and the intermediate expansion body are of an integrally formed structure.
Preferably, the interior of the electrode tip is a hollow structure, and the electrode tip is communicated with the conduit.
Preferably, the surface of the handle is provided with a liquid storage device, the liquid storage device comprises a liquid storage pipe, one end of the liquid storage pipe is provided with a liquid outlet head, the other end of the liquid outlet head is provided with a sealing pipe in plug-in fit with the liquid storage pipe, the other end of the liquid storage pipe is provided with a push rod, one end of the push rod is provided with a plug plate in sliding connection with the liquid storage pipe, and the other end of the push rod is provided with a push plate.
Preferably, the push plate and the push rod are of an integrally formed structure.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the deformable high-precision balloon heart cavity mapping catheter is characterized in that a liquid storage device is arranged to inject liquid into the head end of an electrode, the electrode head end is made to form a rod shape, a cone shape or a sphere shape through the expansion of a head end electrode pair and an intermediate expansion body, the length and the diameter of the rod shape and the cone shape are adjustable, and the rod shape and the cone shape can enter coronary veins, superior and inferior vena cava, pulmonary veins, left and right ventricular outflow tracts and other positions, so that the positions can be subjected to quick and accurate electrodissection mapping.
2. According to the deformable high-precision balloon heart cavity mapping catheter, the end parts of rod-shaped and conical electrode tips can be bent in a bending mode to form an arc shape, the catheter connected with the catheter can be bent in a two-way bending mode, the end parts of the electrode tips can move in a heart cavity and can be attached to an endocardium, and heart cavity electrodissection mapping is achieved.
3. According to the deformable high-precision balloon heart cavity mapping catheter, the head end of the catheter is an inflatable or liquid balloon, so that the heart cannot be extruded and pushed to cause heart cavity deformation, the surface of the catheter is fully covered with electrodes, the catheter can be perfectly attached to each part of the heart, and the electrode pair of the head end of the mapping catheter can be quickly and accurately subjected to heart cavity electrodissection.
Drawings
Fig. 1 is a schematic view of the balloon electrode head of the present invention when not expanded;
FIG. 2 is a schematic view of the balloon electrode tip end portion of the present invention as it is expanded;
FIG. 3 is a schematic view of the structure of the electrode tip of the present invention;
fig. 4 is a schematic view of the structure of the head electrode pair of the present invention;
FIG. 5 is an exploded view of the liquid storage device of the present invention;
fig. 6 is a schematic structural view of an electrode tip in embodiment 4 of the present invention;
fig. 7 is a schematic structural diagram of an electrode tip in embodiment 5 of the present invention.
In the figure: 1. a conduit; 2. an electrode tip; 21. a pair of tip electrodes; 22. an intermediate expansion body; 23. a rear end expansion body; 24. a first electrode pair; 25. a second electrode pair; 26. a magnetic sensor; 3. a handle; 31. a tail interface; 4. a liquid storage device; 41. a liquid storage pipe; 42. a liquid outlet head; 43. a sealing tube; 44. a push rod; 45. a plug plate; 46. a push plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1
A deformable high-precision balloon heart cavity mapping catheter comprises a catheter 1, an electrode head end 2 installed at one end of the catheter 1 and a handle 3 installed at the other end of the catheter 1, wherein a tail line interface 31 is arranged at the bottom of the handle 3, a head end electrode pair 21, a middle expansion body 22 and a rear end expansion body 23 are sequentially arranged at the electrode head end 2 from left to right, a plurality of first electrode pairs 24 are arranged on the electrode head end 2 close to the middle expansion body 22 and the rear end expansion body 23, a magnetic sensor 26 is arranged at the surface center position of the head end electrode pair 21, a plurality of second electrode pairs 25 are annularly arrayed on the outer side of the magnetic sensor 26, each first electrode pair 24 and each second electrode pair 25 are composed of two microelectrodes, each microelectrode is connected to one side of the tail line interface 31 through a lead, the head end electrode pair 21 and the middle expansion body 22 are of an integrally formed structure, the interior of the electrode head end 2 is of a hollow structure, and the electrode head end 2 is communicated with the catheter 1.
In this embodiment, two electrodes form an electrode pair through the adhesion of insulating rubber, and two adjacent electrode pairs adopt elasticity rubber adhesion fixed for when the electrode head end is swelling, the interval is unchangeable between the electrode, and the interval is changeable between the electrode pair.
Specifically, the head electrode pair 21, the intermediate expansion body 22 and the rear expansion body 23 are all made of elastic rubber materials, the thickness of the head electrode pair 21 is larger than that of the intermediate expansion body 22, the thickness of the intermediate expansion body 22 is larger than that of the rear expansion body 23, and the deformation effects of the head electrode pair 21, the intermediate expansion body 22 and the rear expansion body 23 are controlled by using the difference in thickness of the head electrode pair 21, the intermediate expansion body 22 and the rear expansion body 23.
In addition, the catheter 1 is a PP folded tube, so that the catheter 1 can be folded in two directions, and the use of the catheter 1 is convenient.
In addition, pipe 1 and electrode head end 2 pass through the glue adhesion fixed, conveniently install the electrode head end on pipe 1 surface.
It is noted that the magnetic sensor 26 is a magnetic coil, and a magnetic field generator is disposed outside the magnetic sensor 26, and the magnetic field generator emits a plurality of magnetic fields, so that each magnetic field can generate an induced current on the magnetic sensor 26.
In this embodiment, 81 electrodes are arranged on the outer surfaces of the intermediate expansion body 22 and the rear end expansion body 23.
Example 2
As shown in fig. 5, the liquid storage device 4 is disposed on the surface of the handle 3, the liquid storage device 4 includes a liquid storage tube 41, one end of the liquid storage tube 41 is provided with a liquid outlet 42, the other end of the liquid outlet 42 is provided with a sealing tube 43 which is inserted into and matched with the liquid storage tube 41, the other end of the liquid storage tube 41 is provided with a push rod 44, one end of the push rod 44 is provided with a plug 45 which is slidably connected with the liquid storage tube 41, the other end of the push rod 44 is provided with a push plate 46, and the push plate 46 and the push rod 44.
In this embodiment, the liquid outlet head 42 penetrates the surface of the handle 3, and is adhered to the joint of the liquid outlet head 42 and the handle 3 through the sealing glue, so that the liquid can conveniently enter the handle 3 from the liquid outlet head 42.
Specifically, one end of the sealing tube 43 should be provided with an annular sealing ring, so that the sealing tube 43 and the liquid storage tube 41 are tightly connected.
In addition, the cock 45 is made of rubber materials, so that the cock 45 is tightly attached to the inner wall of the liquid storage pipe 41, and liquid inside the liquid storage pipe 41 is extruded out by the cock 45.
Example 3
The rear end expansion body 23 of the electrode head end 2 is plugged into the catheter 1, the push plate 46 is extruded to enable the push rod 44 to slide in the liquid storage tube 41, part of liquid inside the liquid storage tube 41 is pressed into the catheter 1 and enters the electrode head end 2, the rear end expansion body 23 is located in the catheter 1 and cannot expand, the middle expansion body 22 is extruded by the liquid to expand to form the shape as shown in figure 2, the catheter 1 is inserted into the heart at the moment, the electrode head end 2 is bent, the electrode head end 2 is rotated to enable the first electrode pair 24 and the second electrode pair 25 to be fully contacted with the wall of the heart, and meanwhile, the electrode head can enter positions such as pulmonary veins, superior vena cava, ventricular outflow tracts and the like to quickly build an accurate model of the positions.
Example 4
The electrode head end 2 is completely positioned outside the catheter 1, the push plate 46 is extruded to enable the push rod 44 to slide in the liquid storage tube 41, part of liquid inside the liquid storage tube 41 is pressed into the catheter 1 and enters the electrode head end 2, the rear end expansion body 23 is enabled to be not expanded completely, at the moment, due to the fact that the thickness of the middle expansion body 22 is larger than that of the rear end expansion body 23, the expansion effect of the middle expansion body 22 is weaker than that of the rear end expansion body 23, and the shape of the figure 6 is formed.
Example 5
The electrode tip 2 is completely positioned outside the catheter 1, the push plate 46 is pressed to enable the push rod 44 to slide in the liquid storage tube 41, all liquid inside the liquid storage tube 41 is pressed into the catheter 1 and enters the electrode tip 2, and the middle expansion body 22 and the rear end expansion body 23 are completely expanded to form the shape of the figure 7.
In the above embodiment, the liquid storage device 4 is arranged to inject liquid into the electrode tip 2, and the shape of the whole electrode tip 2 is changed by the expansion of the tip electrode pair 21, the intermediate expansion body 22 and the rear end expansion body 23, and the electrode tip is perfectly attached to each part of the heart, so that the heart is not pushed, repeated bending in the heart cavity is not needed, and high-precision mapping is facilitated.
The wall thickness of the middle expansion body 22 and the wall thickness of the rear end expansion body 23 gradually change, and during actual preparation, a small gap can be formed first, then after the electrode pair is inserted, the head end electrode pair 21 is sealed with the middle expansion body 22, and the electrode wire is connected to the signal acquisition end from the inside of the middle expansion body 22 through routing.
The balloon can be inflated and filled with liquid, the device for controlling inflation and deflation is not protected by the patent, the inflation and deflation can be realized by adopting the prior art, the size of the balloon can be better controlled by the liquid for inflation and deflation, and the balloon can be compressed by gas and protected. The size of the saccule is controlled and the liquid storage tank is manually operated. The liquid storage tank is only 30 to 50 milliliters, needs not to be too large, but needs to be matched with a valve for practical use to prevent liquid from flowing back.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A deformable high-precision balloon heart cavity mapping catheter comprises a catheter (1), an electrode head end (2) installed at one end of the catheter (1) and a handle (3) installed at the other end of the catheter (1), and is characterized in that: the bottom of handle (3) is provided with tail line interface (31), turn right from a left side electrode head (2) and set gradually head end electrode pair (21), middle inflation body (22) and rear end inflation body (23), electrode head end (2) are close to middle inflation body (22) with rear end inflation body (23) one side is provided with a plurality of first electrode pair (24), the surperficial central point of head end electrode pair (21) puts and is provided with magnetic sensor (26), magnetic sensor (26) outside annular array has a plurality of second electrode pair (25).
2. The transformable high-precision balloon heart cavity mapping catheter of claim 1, wherein: each first electrode pair (24) and each second electrode pair (25) are composed of two microelectrodes, and each microelectrode is connected to one side of the tail interface (31) through a lead.
3. The transformable high-precision balloon heart cavity mapping catheter of claim 1, wherein: the head electrode pair (21) and the middle expansion body (22) are of an integrally formed structure.
4. The transformable high-precision balloon heart cavity mapping catheter of claim 1, wherein: the electrode head end (2) is internally of a hollow structure, and the electrode head end (2) is communicated with the catheter (1).
5. The transformable high-precision balloon heart cavity mapping catheter of claim 1, wherein: the liquid storage device (4) is arranged on the surface of the handle (3), the liquid storage device (4) comprises a liquid storage tube (41), a liquid outlet head (42) is arranged at one end of the liquid storage tube (41), a sealing tube (43) which is in plug-in fit with the liquid storage tube (41) is arranged at the other end of the liquid outlet head (42), a push rod (44) is arranged at the other end of the liquid storage tube (41), a plug plate (45) which is in sliding connection with the liquid storage tube (41) is arranged at one end of the push rod (44), and a push plate (46) is arranged at the other end of the push rod (44).
6. The transformable high-precision balloon heart cavity mapping catheter of claim 5, wherein: the push plate (46) and the push rod (44) are of an integrally formed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821836853.9U CN210077651U (en) | 2018-11-08 | 2018-11-08 | Deformable high-precision balloon heart cavity mapping catheter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821836853.9U CN210077651U (en) | 2018-11-08 | 2018-11-08 | Deformable high-precision balloon heart cavity mapping catheter |
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| CN210077651U true CN210077651U (en) | 2020-02-18 |
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| CN201821836853.9U Active CN210077651U (en) | 2018-11-08 | 2018-11-08 | Deformable high-precision balloon heart cavity mapping catheter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350049A (en) * | 2018-11-08 | 2019-02-19 | 无锡市人民医院 | A kind of deformable high precision sacculus chambers of the heart mapping catheter |
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- 2018-11-08 CN CN201821836853.9U patent/CN210077651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350049A (en) * | 2018-11-08 | 2019-02-19 | 无锡市人民医院 | A kind of deformable high precision sacculus chambers of the heart mapping catheter |
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