CN211325372U - Ultrasonic balloon for cardiovascular lithotripsy and balloon catheter system - Google Patents
Ultrasonic balloon for cardiovascular lithotripsy and balloon catheter system Download PDFInfo
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- CN211325372U CN211325372U CN201921505251.XU CN201921505251U CN211325372U CN 211325372 U CN211325372 U CN 211325372U CN 201921505251 U CN201921505251 U CN 201921505251U CN 211325372 U CN211325372 U CN 211325372U
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Abstract
The utility model provides a pair of an ultrasonic wave sacculus and sacculus pipe system for cardiovascular rubble, include: the balloon treatment end is provided with an ultrasonic receiver and a plurality of single crystal ultrasonic transducers, and the single crystal ultrasonic transducers are connected with an ultrasonic generator and are powered by the ultrasonic generator to generate ultrasonic waves; and the medicine coating layer is arranged on the surface of the treatment end of the balloon. Because the ultrasonic generator is arranged in the balloon, the disintegration of the drug-loaded coating can be accelerated under the impact of ultrasonic waves, so that the selection range of the clear carrier can be wide, and the release of the drug can be completed in a short time even if the carrier which is not easy to disintegrate is selected.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to an ultrasonic wave sacculus and sacculus pipe system for cardiovascular rubble.
Background
With the aging of the population and the influence of factors such as environment, diet and living habits, the number of people suffering from vascular calcification and/or valvular calcification is increasing year by year. When a vessel becomes calcified and needs to be opened or a slightly calcified membrane needs to be repaired, it is conventional practice to pre-expand the vessel with an inflated balloon. This usually requires a significant amount of pressure, and the inflated balloon is gradually expanded under internal pressure until the pressure within the balloon causes the calcified lesion to rupture or burst, which may also cause damage to the vessel.
The foreign SHOCKWAVE MEDICAL company applies the technique of electro-hydraulic lithotripsy to angioplasty or valvular calcification. The basic principle is that certain voltage is utilized to generate bubbles in a balloon filled with liquid, the bubbles collapse in a very short time to generate shock waves, and therefore the purpose of crushing stones and calcifying lesion tissues is achieved. This co-pending patent application No. CN104519809A discloses an impact loblasty with multiple balloons. This patent describes a shock wave apparatus and method for calcified heart valve therapy. One variation of the shock wave device includes three balloons, each of which is sized and shaped to fit within a concave portion of the valve cusps when the balloon is inflated with a liquid. Each balloon is individually and/or independently controllable. A method of treating a calcified heart valve using a shock wave device includes advancing the shock wave device to contact the heart valve, wherein the shock wave device has one or more balloons and a shock wave source in each balloon, the method further including inflating the one or more balloons with a liquid such that the balloons are disposed within a concave portion of a valve cusp, and activating the shock wave source. One problem with this approach in treating valve calcification is that the direction of impact is uniform, resulting in a continuous impact in one direction and little or no impact in other directions; another problem is that once the balloon is ruptured, a high voltage is applied to the human body, causing the human body to get an electric shock. Another patent, CN104582621A, discloses a low profile electrode for use in an angioplasty shock waveguide, which also suffers from the above-mentioned problems.
Meanwhile, in the prior art, ultrasonic waves are adopted to carry out lithotripsy on other parts, such as urethra or biliary tract, an ultrasonic transducer is directly acted on pathological change tissues, the lithotripsy is broken when the lithotripsy reaches resonance frequency by utilizing the conduction of the ultrasonic waves, and the ultrasonic transducer cannot be directly introduced into the technical field of cardiovascular lithotripsy due to large volume. As cited directly, there are several problems: 1. the ultrasonic transducer is solid and cannot adapt to different blood vessels and different pathological tissues; 2, the ultrasonic waves directly act on the blood to enable the blood to generate a gasification phenomenon, so that air embolism is formed; 3. the ultrasonic transducer directly acts on the pathological tissue without buffer action, and is easy to damage blood vessels.
In addition, in the prior art, the selection of the drug carrier is a more critical step in the use process of the drug-loaded balloon. In the cardiovascular field, the easily disintegrated carrier is beneficial to the release of the drug, but the easily disintegrated carrier gradually disintegrates in the drug delivery process to release the drug, so that the dosage reaching the treatment part is less, and the treatment effect cannot be achieved. And the use of a viscous carrier which is not easy to disintegrate reduces the loss of the drug in the balloon conveying process, but after the balloon reaches the part to be treated, the drug release time is longer, so that the operation time is prolonged, and the risk of the operation is increased.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to overcome the problems that in the prior art, in the cardiovascular lithotripsy field, the impact is uneven and the electric leakage risk exists, and the drug release of the drug-loaded balloon is not easy to control, the ultrasonic balloon and the balloon catheter system for the cardiovascular lithotripsy can reduce the drug loss in the balloon conveying process and quickly release the drug after the balloon is in place.
The design scheme of the utility model is as follows:
an ultrasound balloon for cardiovascular lithotripsy, comprising: the balloon treatment end is provided with an ultrasonic receiver and a plurality of single crystal ultrasonic transducers, and the single crystal ultrasonic transducers are connected with an ultrasonic generator and are powered by the ultrasonic generator to generate ultrasonic waves; and the medicine coating layer is arranged on the surface of the treatment end of the balloon.
Preferably, the medicine coating layer comprises a therapeutic medicine layer and a protective medicine layer arranged outside the therapeutic medicine layer.
Preferably, the therapeutic agent layer is attached to the surface of the balloon treatment end in the expanded state of the balloon treatment end, and the protective agent layer is attached to the surface of the therapeutic agent layer in the contracted state of the balloon treatment end.
Preferably, each single crystal ultrasonic transducer is circumferentially arranged along the axial direction of the balloon treatment end.
Preferably, the single crystal ultrasonic transducer comprises a vibrating piece, a ceramic crystal and a shell, the ceramic crystal is fixedly connected with the shell, and the vibrating piece is in contact with the ceramic crystal in a bonding manner.
An ultrasonic balloon catheter system for cardiovascular lithotripsy, comprising: an ultrasonic generator; a balloon treatment end; one end of the catheter tube body is connected with the ultrasonic generator, and the other end of the catheter tube body is connected with the balloon treatment end.
Preferably, the method further comprises a terminal, and the terminal comprises: a human-computer interaction module; a control module; the ultrasonic transmitting module comprises the ultrasonic generator and is connected with the balloon treatment end, and the control module receives the instruction of the human-computer interaction module and controls the ultrasonic transmitting module to work; and the ultrasonic receiving module is connected with the balloon treatment end, receives the signal of the ultrasonic receiver and transmits the signal to the control module.
Preferably, a pressure sensor and a temperature sensor are arranged in the balloon treatment end, the pressure sensor and the temperature sensor are respectively used for detecting the liquid pressure and the temperature in the balloon treatment end, and the pressure sensor and the temperature sensor are connected with the control module.
Preferably, the terminal further comprises an imaging module, and the imaging module receives the signal of the ultrasonic receiving module, converts the signal into an image and outputs the image through the human-computer interaction module.
Preferably, the catheter tube body comprises an injection cavity, the injection cavity is communicated with the balloon treatment end, and the balloon treatment end is hermetically connected with the catheter tube body; the catheter body comprises a guide wire cavity, and the treatment end of the balloon is hermetically connected with the guide wire cavity; a catheter handle is further arranged at one end of the catheter tube body, which is far away from the balloon treatment end, and a liquid injection interface communicated with the liquid injection cavity and a guide wire interface communicated with the guide wire cavity are arranged on the catheter handle; the catheter handle is detachably connected with the terminal through a flexible connecting pipe, the catheter body comprises a wire cavity, the wire cavity is connected with the flexible connecting pipe, and a wire connected with the terminal and the balloon treatment end is arranged in the flexible connecting pipe.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a pair of an ultrasonic wave sacculus for cardiovascular rubble, include: the balloon treatment end is provided with an ultrasonic receiver and a plurality of single crystal ultrasonic transducers, and the single crystal ultrasonic transducers are connected with an ultrasonic generator and are powered by the ultrasonic generator to generate ultrasonic waves; and the medicine coating layer is arranged on the surface of the treatment end of the balloon. Because the ultrasonic generator is arranged in the balloon, the disintegration of the drug-loaded coating can be accelerated under the impact of ultrasonic waves, so that the selection range of the clear carrier can be wide, and the release of the drug can be completed in a short time even if the carrier which is not easy to disintegrate is selected.
2. The utility model provides a pair of an ultrasonic wave sacculus for cardiovascular rubble, scribble the medicine layer including treatment medicine layer and locate the outer protection medicine layer of treatment medicine layer. The drug-loaded coating is of a double-layer structure. The therapeutic drug layer is attached to the surface of the balloon treatment end in the state that the balloon treatment end is expanded, and the protective drug layer is attached to the surface of the therapeutic drug layer in the state that the balloon treatment end is contracted. The drug is attached to the balloon in the forms of spraying, dip-coating and the like under the condition of balloon expansion, then the balloon is contracted, a layer of drug is attached to the surface of the contracted balloon, and the drug delivery amount of the drug coating is ensured by the double-layer structure. In the treatment process, the surface layer medicine plays a role in protection, and in the conveying process, the surface layer medicine can prevent the disintegration of the inner layer medicine playing a role in treatment. After reaching the target part, the saccule is filled with liquid and expanded, the surface drug coating is torn while contacting with the blood vessel, the surface drug is disintegrated after the ultrasonic generator is started, and the inner drug starts to treat the blood vessel. Because the inner layer medicine is not lost during the conveying process of the balloon, the medicine quantity is sufficient when the blood vessel is treated, and the best treatment effect can be achieved.
3. The utility model provides a pair of an ultrasonic wave sacculus for cardiovascular rubble, each single crystal ultrasonic transducer follows the axial of sacculus treatment end is the circumference and arranges, compares with the electrode that is linear distribution among the current shock wave rubble technique, and the transducer that is the periphery and distributes has ensured that the ultrasonic wave is relatively even on producing and propagating, and it is inhomogeneous to have avoided the linear transmission of electrode to lead to the rubble, and it is more even that the medicine spreads simultaneously.
4. The utility model provides a pair of an ultrasonic wave sacculus pipe system for cardiovascular rubble, include: an ultrasonic generator; a balloon treatment end; one end of the catheter tube body is connected with the ultrasonic generator, and the other end of the catheter tube body is connected with the balloon treatment end. The utility model discloses an ultrasonic generator sends the electric energy for single crystal ultrasonic transducer and sends the ultrasonic wave again, compares through the high-tension electricity direct action in liquid gassing shock wave with prior art, the utility model discloses ensured that the impact force is even relatively, reduced remaining after the rubble when guaranteeing efficiency. Under the scheme of ultrasonic manufacturing impact, the danger possibly existing due to the high voltage in the balloon is avoided, and further the harm of the internal high voltage to a human body under the condition that the balloon is accidentally damaged can be avoided. The utility model discloses utilize ultrasonic transducer to change the electric energy into the ultrasonic wave, the ultrasonic wave acts on the liquid in the sacculus, and "cavitation" phenomenon appears in liquid under the effect of ultrasonic wave, and this phenomenon produces the impact force and acts on the sacculus, and sacculus elastic shock conducts the shaking force to calcified tissue again in, makes calcified tissue break. The balloon can adapt to different blood vessels and pathological tissues; the cavitation phenomenon appears in the saccule and can not appear in blood; the elastic vibration of the balloon acts on the calcified tissues, so that the injury to blood vessels cannot be caused, and the problems in the prior art are successfully overcome.
5. The utility model provides an ultrasonic balloon catheter system for cardiovascular lithotripsy, the catheter tube body comprises an injection cavity, the injection cavity is communicated with the balloon treatment end, and the balloon treatment end is hermetically connected with the catheter tube body; the catheter body comprises a guide wire cavity, and the treatment end of the balloon is hermetically connected with the guide wire cavity; a catheter handle is further arranged at one end of the catheter tube body, which is far away from the balloon treatment end, and a liquid injection interface communicated with the liquid injection cavity and a guide wire interface communicated with the guide wire cavity are arranged on the catheter handle; the catheter handle is detachably connected with the terminal through a flexible connecting pipe, the catheter body comprises a wire cavity, the wire cavity is connected with the flexible connecting pipe, and a wire connected with the terminal and the balloon treatment end is arranged in the flexible connecting pipe. The balloon catheter is injected with a liquid through the injection lumen, and the liquid in the balloon does not flow into the blood vessel due to the presence of the balloon, and therefore, the balloon catheter may be used with other liquids as well as physiological saline. Different from other parts, the cardiovascular system needs to advance through the guide wire and then follow the guide wire by the catheter tube body.
6. The utility model provides a pair of an ultrasonic wave sacculus pipe system for cardiovascular rubble, single crystal ultrasonic transducer includes trembler, ceramic crystal and shell, ceramic crystal with shell fixed connection, the trembler with the laminating contact of ceramic crystal. The ultrasonic transducer made of the ceramic crystal has small volume, is suitable for the saccule of the cardiovascular lithotripsy, and the vibrating piece is in contact with the ceramic crystal in a bonding way, so that the efficiency of ultrasonic vibration is improved.
7. The utility model provides a pair of an ultrasonic wave sacculus pipe system for cardiovascular rubble still includes the terminal, the terminal includes: a human-computer interaction module; a control module; the ultrasonic transmitting module comprises the ultrasonic generator and is connected with the balloon treatment end, and the control module receives the instruction of the human-computer interaction module and controls the ultrasonic transmitting module to work; and the ultrasonic receiving module is connected with the balloon treatment end, receives the signal of the ultrasonic receiver, transmits the signal to the control module, and can control the ultrasonic balloon catheter and receive feedback through the terminal.
8. The utility model provides a pair of an ultrasonic wave sacculus pipe system for cardiovascular rubble, the pipe handle pass through the flexonics pipe with the connection can be dismantled at the terminal, the pipe body includes the wire chamber, the wire chamber with the flexonics pipe links to each other the wire chamber with be equipped with the connection in the flexonics pipe the terminal with the wire of sacculus treatment end. The terminal and the guide pipe are detachably connected, so that the consumable material of the guide pipe is convenient to replace.
9. The utility model provides a pair of an ultrasonic wave sacculus pipe system for cardiovascular rubble, be equipped with pressure sensor and temperature sensor in the sacculus treatment end, pressure sensor with temperature sensor is used for detecting respectively liquid pressure and temperature in the sacculus treatment end, pressure sensor with temperature sensor with control module connects. During treatment, the pressure sensor monitors the pressure inside the balloon, and the temperature sensor records the temperature and transmits the data to the control module. After the ultrasonic generator is started, the temperature in the balloon is gradually increased, and the information is fed back to the control module and is confirmed to start treatment. When the calculus in the target area is crushed, the compression force applied to the balloon can be changed, the pressure in the balloon detected by the pressure sensor can be changed accordingly, and the information is fed back to the control module and then confirmed to be crushed. The real-time progress monitoring function of the working state and the crushed stone state of the ultrasonic generator is achieved through the combination of the pressure sensor and the temperature sensor.
10. The utility model provides a pair of an ultrasonic wave sacculus pipe system for cardiovascular rubble, the terminal still includes imaging module, imaging module receives ultrasonic receiving module's signal converts into the image and passes through human-computer interaction module output. Present shock wave rubble technical center when needs observe calcification position and form, adopts the form of external supersound, and the image is fuzzy, influences the operation effect, the utility model discloses an ultrasonic wave sacculus pipe system is provided with ultrasonic wave receiving module and ultrasonic receiver, can receive and handle ultrasonic signal, and imaging module carries out treatments such as filtering to received signal at the later stage, acquires the ultrasonic image. Since the signal is obtained from the inside of the blood vessel, the image in the blood vessel can be clearly seen, the position and the form of calcification can be accurately judged, and the lithotripsy can be accurately performed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a partial structure of a balloon treatment end of the present invention;
fig. 2 is a schematic structural view of the ultrasonic balloon catheter system of the present invention;
FIG. 3 is a schematic structural diagram of a single crystal ultrasonic transducer of the present invention;
fig. 4 is a schematic view of the cross-sectional structure of the catheter tube of the present invention.
Description of reference numerals:
1-an ultrasonic generator; 2-a catheter tube; 3-balloon treatment end; 4-single crystal ultrasonic transducer; 5-an ultrasonic receiver; 6-catheter handle; 7-flexible connecting pipe; 8, a terminal; 9-ceramic crystals; 10-a vibrating piece; 11-a guidewire lumen; 12-a guidewire lumen; 13-liquid injection chamber; 14-coating a medicine layer.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
Fig. 1 shows an ultrasonic balloon for cardiovascular lithotripsy provided by the present invention, including: the balloon treatment end 3 is provided with an ultrasonic receiver 5 and a plurality of single-crystal ultrasonic transducers 4, each single-crystal ultrasonic transducer 4 comprises a vibrating piece 10, a ceramic crystal 9 and a shell, the ceramic crystal 9 is fixedly connected with the shell, the vibrating piece 10 is in contact with the ceramic crystal 9 in an attaching mode, each single-crystal ultrasonic transducer 4 is circumferentially arranged along the axial direction of the balloon treatment end 3, and the single-crystal ultrasonic transducers 4 are connected with an ultrasonic generator 1 and generate ultrasonic waves through the energy supply of the ultrasonic generator 1; the drug coating layer 14 is arranged on the surface of the balloon treatment end 3, the drug coating layer 14 comprises a treatment drug layer and a protective drug layer arranged outside the treatment drug layer, the treatment drug layer is attached to the surface of the balloon treatment end 3 in the expansion state of the balloon treatment end 3, and the protective drug layer is attached to the surface of the treatment drug layer in the contraction state of the balloon treatment end 3.
Because the ultrasonic generator 1 is arranged in the balloon, the disintegration of the drug-loaded coating can be accelerated under the impact of ultrasonic waves, so that the selection range of the clear carrier can be wide, and the release of the drug can be completed in a short time even if the carrier which is not easy to disintegrate is selected. The drug is attached to the balloon in the forms of spraying, dip-coating and the like under the condition of balloon expansion, then the balloon is contracted, a layer of drug is attached to the surface of the contracted balloon, and the drug delivery amount of the drug coating is ensured by the double-layer structure. In the treatment process, the surface layer medicine plays a role in protection, and in the conveying process, the surface layer medicine can prevent the disintegration of the inner layer medicine playing a role in treatment. After reaching the target part, the saccule is filled with liquid and expanded, the surface drug coating is torn while contacting with the blood vessel, the surface drug is disintegrated after the ultrasonic generator 1 is started, and the inner drug starts to treat the blood vessel. Because the inner layer medicine is not lost during the conveying process of the balloon, the medicine quantity is sufficient when the blood vessel is treated, and the best treatment effect can be achieved.
Example 2
Fig. 2 shows an ultrasonic balloon catheter system for cardiovascular lithotripsy provided by the present invention, comprising: an ultrasonic generator 1; one end of the catheter tube body 2 is connected with the ultrasonic generator 1; sacculus treatment end 3 is located pipe body 2 is kept away from supersonic generator 1's one end, as shown in fig. 1, be equipped with a plurality of single crystal ultrasonic transducer 4 and ultrasonic receiver 5 in the sacculus treatment end 3, 3 surfaces of sacculus treatment end are equipped with medicine coating 14, medicine coating 14 includes treatment medicine layer and locates the outer protective medicine layer of treatment medicine layer, treatment medicine layer is in under 3 expansion of sacculus treatment end adhere to 3 surfaces of sacculus treatment end, protective medicine layer is in under 3 contraction states of sacculus treatment end adhere to in treatment medicine layer surface. As shown in fig. 3, the single crystal ultrasonic transducer 4 includes a vibrating piece 10, a ceramic crystal 9, and a case, the ceramic crystal 9 is fixedly connected to the case, and the vibrating piece 10 is in contact with the ceramic crystal 9. The single crystal ultrasonic transducers 4 are electrically connected with the ultrasonic generator 1 through the catheter tube body 2, and the single crystal ultrasonic transducers 4 are circumferentially arranged along the axial direction of the balloon treatment end 3; supersonic generator 1 be used for to ultrasonic transducer carries the electric energy, single crystal ultrasonic transducer 4 is used for carrying out the rubble with electric energy conversion ultrasonic vibration, ultrasonic receiver 5 is used for receiving the ultrasonic wave and converts the signal of telecommunication into.
The catheter tube body 2 comprises an injection cavity 13, the injection cavity 13 is communicated with the balloon treatment end 3, and the balloon treatment end 3 is connected with the catheter tube body 2 in a sealing mode. The catheter tube body 2 comprises a guide wire cavity 11, and the balloon treatment end 3 is hermetically connected with the guide wire cavity 11. The catheter body 2 is far away from one end of the balloon treatment end 3 is further provided with a catheter handle 6, and the catheter handle 6 is provided with a liquid injection interface communicated with the liquid injection cavity 13 and a guide wire interface communicated with the guide wire cavity 11.
Still include terminal 8, terminal 8 includes: a human-computer interaction module; a control module; the ultrasonic wave sending module comprises the ultrasonic generator 1 and is connected with the balloon treatment end 3, and the control module receives the instruction of the human-computer interaction module and controls the ultrasonic wave sending module to work; and the ultrasonic receiving module is connected with the balloon treatment end 3, receives the signal of the ultrasonic receiver 5 and transmits the signal to the control module. The catheter handle 6 is detachably connected with the terminal 8 through a flexible connecting pipe 7, the catheter body 2 comprises a guide wire cavity 12, the guide wire cavity 12 is connected with the flexible connecting pipe 7, and a guide wire connected with the terminal 8 and the balloon treatment end is arranged in the flexible connecting pipe 7. Be equipped with pressure sensor and temperature sensor in the sacculus treatment end 3, pressure sensor with temperature sensor is used for detecting respectively the liquid pressure and the temperature in the sacculus treatment end 3, pressure sensor with temperature sensor with control module connects. After the ultrasonic generator 1 is started, the temperature inside the balloon gradually rises, and the information is fed back to the control module and is confirmed as the start of treatment. When the calculus in the target area is crushed, the compression force applied to the balloon can be changed, the pressure in the balloon detected by the pressure sensor can be changed accordingly, and the information is fed back to the control module and then confirmed to be crushed. The real-time progress monitoring function of the working state and the crushed stone state of the ultrasonic generator 1 is achieved through the combination of the pressure sensor and the temperature sensor. The terminal 8 further comprises an imaging module, and the imaging module receives the signal of the ultrasonic receiving module, converts the signal into an image and outputs the image through the human-computer interaction module. Present shock wave rubble technical center when needs observe calcification position and form, adopts the form of external supersound, and the image is fuzzy, influences the operation effect, the utility model discloses an ultrasonic wave sacculus pipe system is provided with ultrasonic wave receiving module and ultrasonic receiver 5, can receive and handle ultrasonic signal, and imaging module carries out treatments such as filtering to received signal at the later stage, acquires the ultrasonic image. Since the signal is obtained from the inside of the blood vessel, the image in the blood vessel can be clearly seen, the position and the form of calcification can be accurately judged, and the lithotripsy can be accurately performed.
As shown in fig. 3, the transducer of the present invention comprises a vibrating reed 10, a ceramic crystal 9, a housing and an electric wire, wherein the ceramic crystal 9 is disposed in the housing, and is fixedly connected to the housing, the vibrating reed 10 is in close contact with the ceramic crystal 9, one end of the electric wire is electrically connected to the ceramic crystal 9, the other end of the electric wire is connected to the wire, and the electric wire is fixedly connected to the housing through glue.
The utility model discloses an ultrasonic generator 1 carries the electric energy for 4 reemission ultrasonic waves of single crystal ultrasonic transducer, compares through the high-tension electricity direct action in liquid gassing shock wave with prior art, the utility model discloses ensured that the impact force is even relatively, reduced remaining after the rubble when guaranteeing efficiency. Under the scheme of ultrasonic manufacturing impact, the danger possibly existing due to the high voltage in the balloon is avoided, and further the harm of the internal high voltage to a human body under the condition that the balloon is accidentally damaged can be avoided. Use 4 small in size of single crystal ultrasonic transducer, can deal with 3 small in size of sacculus treatment end, be difficult to hold ultrasonic transducer's problem, the ultrasonic wave passes through the sacculus and acts on the rubble position simultaneously, has reduced the damage to blood vessel.
During the treatment process, the saccule is filled with liquid through the liquid filling interface. The ultrasonic generator 1 is started to start the treatment. The ultrasonic generator 1 transmits ultrasonic waves to perform stone breaking. In addition, the ultrasonic waves generate reflection after contacting the blood vessel, the ultrasonic receiver 5 receives the reflected ultrasonic waves and feeds the reflected ultrasonic waves back to the control module, and after operation, the intravascular ultrasonic images are displayed on the human-computer interaction module. Through the cooperation of the ultrasonic generator 1 and the ultrasonic receiver 5, the collection of the ultrasonic data in the blood vessel is completed, and the blood vessel ultrasonic image is displayed through the calculation of the control module, so that the observation is more visual. Thereby realizing the dual purposes of intravascular imaging examination and treatment. The dosage of surgical instruments is reduced, and the medical burden of a patient is further lightened. The transducers distributed in the circumferential surface can uniformly break stones and greatly improve the definition of ultrasonic images.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. An ultrasound balloon for cardiovascular lithotripsy, comprising:
the balloon treatment end (3) is provided with an ultrasonic receiver (5) and a plurality of single crystal ultrasonic transducers (4), and the single crystal ultrasonic transducers (4) are connected with the ultrasonic generator (1) and are powered by the ultrasonic generator (1) to generate ultrasonic waves;
the medicine coating layer (14) is arranged on the surface of the balloon treatment end (3).
2. The ultrasound balloon of claim 1, wherein the drug-coated layer (14) comprises a therapeutic drug layer and a protective drug layer disposed over the therapeutic drug layer.
3. The ultrasonic balloon according to claim 2, wherein the therapeutic agent layer is attached to the surface of the balloon treatment end (3) in the expanded state of the balloon treatment end (3), and the protective agent layer is attached to the surface of the therapeutic agent layer in the contracted state of the balloon treatment end (3).
4. An ultrasound balloon according to claim 3, characterized in that each of the single crystal ultrasound transducers (4) is arranged circumferentially in the axial direction of the balloon treatment end (3).
5. An ultrasonic balloon according to claim 4, wherein the single crystal ultrasonic transducer (4) comprises a vibrating plate (10), a ceramic crystal (9) and a housing, the ceramic crystal (9) is fixedly connected with the housing, and the vibrating plate (10) is in contact with the ceramic crystal (9).
6. An ultrasonic balloon catheter system for cardiovascular lithotripsy, comprising:
an ultrasonic generator (1);
a balloon treatment tip (3) for cardiovascular lithotripsy according to any one of claims 1-5;
one end of the catheter tube body (2) is connected with the ultrasonic generator (1), and the other end of the catheter tube body is connected with the balloon treatment end (3).
7. The ultrasonic balloon catheter system according to claim 6, further comprising a terminal end (8), the terminal end (8) comprising:
a human-computer interaction module;
a control module;
the ultrasonic transmitting module comprises the ultrasonic generator (1) and is connected with the balloon treatment end (3), and the control module receives the instruction of the human-computer interaction module and controls the ultrasonic transmitting module to work;
and the ultrasonic receiving module is connected with the balloon treatment end (3), receives the signal of the ultrasonic receiver (5) and transmits the signal to the control module.
8. The ultrasonic balloon catheter system according to claim 7, wherein a pressure sensor and a temperature sensor are arranged in the balloon treatment end (3), the pressure sensor and the temperature sensor are respectively used for detecting the liquid pressure and the liquid temperature in the balloon treatment end (3), and the pressure sensor and the temperature sensor are connected with the control module.
9. The ultrasonic balloon catheter system according to claim 7, wherein the terminal (8) further comprises an imaging module, and the imaging module receives signals of the ultrasonic receiving module, converts the signals into images and outputs the images through the human-computer interaction module.
10. An ultrasonic balloon catheter system according to claim 7, wherein the catheter tube (2) comprises an infusion lumen (13), the infusion lumen (13) communicating with the balloon treatment end (3), the balloon treatment end (3) being sealingly connected with the catheter tube (2); the catheter tube body (2) comprises a guide wire cavity (11), and the balloon treatment end (3) is hermetically connected with the guide wire cavity (11); a catheter handle (6) is further arranged at one end, far away from the balloon treatment end (3), of the catheter tube body (2), and a liquid injection interface communicated with the liquid injection cavity (13) and a guide wire interface communicated with the guide wire cavity (11) are arranged on the catheter handle (6); the catheter handle (6) is detachably connected with the terminal (8) through a flexible connecting pipe (7), the catheter body (2) comprises a wire cavity (12), the wire cavity (12) is connected with the flexible connecting pipe (7), the wire cavity (12) is connected with a wire in the flexible connecting pipe (7), and the terminal (8) and a wire of the balloon treatment end (3) are connected.
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| CN201921505251.XU CN211325372U (en) | 2019-09-10 | 2019-09-10 | Ultrasonic balloon for cardiovascular lithotripsy and balloon catheter system |
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| CN201921505251.XU CN211325372U (en) | 2019-09-10 | 2019-09-10 | Ultrasonic balloon for cardiovascular lithotripsy and balloon catheter system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110623703A (en) * | 2019-09-10 | 2019-12-31 | 丁·奥利弗 | Ultrasonic balloon for cardiovascular lithotripsy and balloon catheter system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110623703A (en) * | 2019-09-10 | 2019-12-31 | 丁·奥利弗 | Ultrasonic balloon for cardiovascular lithotripsy and balloon catheter system |
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