CN218391846U

CN218391846U - Conduit and seismic wave generation system

Info

Publication number: CN218391846U
Application number: CN202121415013.7U
Authority: CN
Inventors: 程增兵; 卜林鹏; 林林
Original assignee: Suzhou Zhonghui Medical Technology Co ltd
Current assignee: Suzhou Zhonghui Medical Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2023-01-31
Anticipated expiration: 2031-06-24

Abstract

The utility model relates to a catheter and a shock wave generation system, wherein the catheter comprises a catheter main body, a balloon and an automatic filling mechanism, the automatic filling mechanism comprises a shell, a filling unit and a pressure adjusting unit, and the shell is fixedly connected with the near end of the catheter main body; the filling unit is arranged in the shell and comprises a storage cavity and a driving assembly, wherein the storage cavity is used for storing a fluid medium and is communicated with the catheter main body; the driving assembly is used for pushing the fluid medium in the storage cavity into the balloon or sucking the fluid medium in the balloon back into the storage cavity; the pressure adjusting unit is used for adjusting the target pressure in the balloon and is connected with the driving assembly. The utility model has the advantages that the automatic filling mechanism and the balloon catheter are integrated, the material consumption is reduced, the structure is simplified, the cost is saved, and the use by an operator is convenient; the filling unit and the pressure adjusting unit cooperate to set the balloon target pressure, monitor the hydraulic pressure in the balloon in real time and supplement the fluid medium in the balloon in real time to maintain the target pressure.

Description

Conduit and seismic wave generation system

Technical Field

The utility model belongs to the technical field of medical equipment, concretely relates to pipe and shock wave generating system.

Background

Cardiovascular stenosis refers to the condition that lipid in blood is deposited on the originally smooth vascular intima due to abnormal lipid metabolism of human artery and vein vessels, wrapped coronary vessels, periphery, intracranial vessels and the like, lipid plaques of atheroma are gradually accumulated, and the plaques are increased and even calcified to cause the stenosis in the vascular cavity along with the time, so that the blood flow is blocked, the blood vessels and the human body at the downstream are ischemic, and the corresponding clinical manifestations are generated. If the stenosis occurs in coronary artery, palpitation, chest pain, dyspnea and angina can be caused, and serious patients can cause insufficient blood supply to cardiac muscle or cardiac muscle necrosis; if the disease occurs in the periphery, the skin epidermis temperature is reduced, the muscle is atrophied, intermittent claudication is generated, and even necrosis or amputation of the far-end limb occurs; if it occurs in the cranium, dizziness, syncope, brain tissue damage and brain dysfunction may occur.

High-pressure balloon expansion, drug balloon expansion, combination of a stent expansion technology after balloon expansion, stent release, rotational abrasion treatment and the like are used for treating cardiovascular stenosis, as long as the use of a balloon catheter is involved, a balloon inflation device (pressure pump) is required to be used for inflating and expanding the balloon, the pressure pump is not controllable, the matching between the pressure pump and the balloon catheter is poor, the situation of overlarge or undersize pressure is easy to occur, the target pressure cannot be maintained in the balloon, and the treatment effect is influenced.

Chinese patent CN112842460A discloses a shock wave generation system with hydraulic monitoring and supplying functions for cardiovascular stenosis, which includes a liquid medium, a hydraulic sensor, a liquid supplier, a catheter and a balloon, wherein the liquid medium is connected to the shock wave generator, the shock wave generator includes a first interface and a second interface, the first interface is connected to the liquid medium and a liquid medium supplying tube, the liquid supplier is located in the shock wave generator, the liquid medium 1 enters the balloon through a liquid source (i.e. the liquid medium indicated by 1), the liquid supplier and the liquid medium supplying tube to maintain the pressure in the balloon, the liquid source, the liquid supplier and the liquid medium supplying tube are consumables independent of the catheter, the balloon and a handle, in use, the liquid medium, the liquid supplier and the liquid medium supplying tube need to be connected first, and then a switch is clicked to deliver the liquid medium to the balloon, if the liquid source is insufficient, the liquid source needs to be supplied, and the system is not only complex in structure, but also complex in connection, time and labor are wasted, and operation is inconvenient in actual operation, and the pressure in the balloon cannot be automatically set.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pipe and seismic wave emergence system for angiostenosis pathological change for solve the complicated in use of pipe structure and need prepare fluid medium and force pump alone, and the uncontrollable problem of intraductal pressure.

In order to achieve the purpose, the utility model adopts the technical proposal that:

a catheter for cardiovascular stenosis, comprising a balloon catheter, said balloon catheter comprising a catheter body, a balloon attached to a distal end of said catheter body, said catheter body in communication with said balloon, said catheter further comprising an automatic filling mechanism, said automatic filling mechanism comprising:

a housing fixedly attached to the proximal end of the catheter body;

the filling unit is arranged in the shell and comprises a storage cavity and a driving assembly, wherein the storage cavity is used for storing fluid media and is communicated with the catheter main body; the driving assembly is used for pushing the fluid medium in the storage cavity into the balloon or sucking the fluid medium in the balloon back into the storage cavity;

a pressure regulating unit for regulating a target pressure within the balloon, the pressure regulating unit being coupled to the drive assembly.

Preferably, when the pressure in the balloon is lower than the target pressure, the pressure regulating unit controls the driving assembly to push the fluid medium in the storage cavity into the balloon; when the pressure adjusting unit adjusts the target pressure in the balloon to 0, the pressure adjusting unit controls the driving assembly to suck the fluid medium in the balloon back into the storage cavity.

Preferably, the pressure adjusting unit includes an adjusting operation member and a controller, the adjusting operation member is disposed on the surface of the housing, the controller is disposed in the housing, the adjusting operation member is connected to the controller, the controller is connected to the driving assembly, the adjusting operation member is used for inputting a target pressure to the controller, and the controller is used for sending a driving command to the driving assembly according to the target pressure.

Preferably, the pressure regulating unit further comprises a hydraulic sensor, the hydraulic sensor is connected with the controller, and the hydraulic sensor is used for detecting the pressure in the balloon and sending the detection result to the controller.

Preferably, the hydraulic sensor is arranged inside the catheter body and/or inside the balloon.

Preferably, the pressure regulating unit further comprises a pressure display screen, the pressure display screen is arranged on the surface of the shell, and the pressure display window is used for displaying target pressure or real-time pressure in the balloon.

Preferably, a fluid medium is stored in said reservoir.

Preferably, the driving assembly comprises a piston, a driving rod and a power component, the piston is located in the storage cavity, one end of the driving rod is connected with the piston, the other end of the driving rod penetrates through the storage cavity to be in transmission connection with the power component, and the power component is connected with the pressure adjusting unit.

Preferably, the catheter further comprises a stress sleeve, and the stress sleeve is sleeved between the shell and the catheter body.

Preferably, the balloon catheter further comprises an electrode device, and the electrode device is arranged on the catheter main body positioned in the balloon.

A seismic wave generation system comprises a catheter and an energy generator, wherein the catheter is provided with an electrode device, and the energy generator is electrically connected with the electrode device.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model integrates the filling unit and the pressure adjusting unit on the shell, so that the automatic filling mechanism and the balloon catheter are integrated into a whole, and a pressure pump does not need to be prepared separately in use, and fluid media do not need to be filled into the balloon through the liquid supply unit, thereby reducing consumables, simplifying the structure, saving the cost, simplifying the operation and being convenient and fast for an operator to use; through the synergistic effect of the filling unit and the pressure adjusting unit, the target pressure of the balloon catheter can be set, the hydraulic pressure in the balloon can be monitored in real time, and fluid media in the balloon can be supplemented in real time to maintain the target pressure, so that the controllable hydraulic pressure in the balloon is realized.

Drawings

Fig. 1 is a schematic structural view of the automatic filling mechanism of the present embodiment;

FIG. 2 is a schematic structural view of a pressure regulating unit of the present embodiment;

fig. 3 is a schematic structural diagram of the seismic wave generation system of the embodiment.

In the drawings above:

1-a catheter main body, 2-a balloon, 3-a shell, 31-a button, 4-a storage cavity, 5-an adjusting operation piece, 6-a controller, 7-a piston, 8-a driving rod, 9-a hydraulic sensor, 10-an energy generator, 101-a display screen, 102-a switch, 11-a connector, 12-a stress sleeve, 14-a pressure display screen, 15-a developing ring, 16-an electrode device, 17-a power part and 18-a connecting lead.

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 efforts all 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 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 as a specific case by those skilled in the art.

The catheter for cardiovascular stenosis shown in fig. 1 to 3 comprises a balloon catheter, the balloon catheter comprises a catheter main body 1 and a balloon 2 connected to the far end of the catheter main body 1, the catheter main body 1 is communicated with the balloon 2, the catheter further comprises an automatic filling mechanism, the automatic filling mechanism comprises a shell 3 and a filling unit, the shell 3 is fixedly connected to the near end of the catheter main body 1, namely the shell 3 and the catheter main body 1 are integrally arranged, and the shell 3 has a handle function and is convenient for handheld operation.

The filling unit has the following specific structure: the filling unit is arranged in the housing 3 and comprises a reservoir 4 and a driving assembly, wherein the reservoir 4 is used for storing fluid medium (saline, contrast medium or a mixture of the saline and the contrast medium) and is communicated with the catheter main body 1 to form circulation of the fluid medium in the reservoir 4 and the catheter main body 1. The drive assembly is used to push the fluid medium in the reservoir 4 into the balloon 2 or to draw the fluid medium in the balloon 2 back into the reservoir 4. The reservoir 4 is communicated with the catheter main body 1 through an L-shaped pipeline, the reservoir 4 is in a square body, a cylinder body and the like, and the axial direction of the reservoir 4 is preferably parallel to the axial direction of the catheter main body 1.

The casing 3 is bar, ellipsoid or pistol shape etc. and the near-end of pipe main part 1 passes casing 3 and stretches out to keeping away from 3 directions of sacculus, and pipe main part 1 still is provided with the silk guide chamber that supplies the guide part to pass, and the exit end in silk guide chamber is located the port department that pipe main part 1 stretches out casing 3, is convenient for locate to supply the guide part to pass along silk guide chamber at casing 3.

The pressure adjusting unit is used for adjusting the target pressure in the balloon 2 (including setting the target pressure in the balloon 2), is connected with the driving component, and controls the driving component to push the fluid medium in the storage cavity 4 into the balloon 2 when the pressure in the balloon 2 is smaller than the target pressure; when the pressure regulating unit regulates the target pressure in the balloon 2 to 0, the pressure regulating unit controls the driving assembly to suck the fluid medium in the balloon 2 back into the storage chamber 4.

The specific structure of the pressure regulating unit is as follows: the balloon pressure regulating and controlling device comprises a regulating and operating part 5 and a controller 6, wherein the regulating and operating part 5 is arranged on the surface of a shell 3, the controller 6 is arranged in the shell 3, the regulating and operating part 5 is connected with the controller 6, the controller 6 is connected with a driving assembly, the regulating and operating part 5 is used for inputting target pressure (namely setting the target pressure in the balloon 2) to the controller 6, and the controller 6 is used for sending a driving instruction to the driving assembly according to the target pressure.

The specific operation is as follows: when the target pressure is determined, and the target pressure is set by operating the adjustment operation member 5, the balloon 2 is automatically filled with the fluid medium to the target pressure, and the target pressure is maintained in use, and the specific embodiment of the automatic filling of the fluid in the balloon 2 is as follows: the controller 6 sends a driving instruction to the driving assembly according to the target pressure, and the controller 6 controls the driving assembly to push the fluid medium in the storage cavity 4 into the balloon 2.

If pressure loss occurs during use and the real-time pressure in the balloon 2 is lower than the target pressure, the filling unit automatically replenishes the fluid medium (i.e., timely replenishes the pressure) to the target pressure, and specifically, the controller 6 controls the driving assembly to push the fluid medium in the reservoir 4 into the balloon 2.

When the pressure adjusting unit adjusts the target pressure in the balloon 2 to 0 (i.e. the adjusting operation member 5 is operated to set the target pressure to 0) at the end of the treatment process, the controller 6 controls the driving assembly to pump the fluid medium in the balloon 2 back into the storage chamber 4 until the internal pressure of the balloon 2 is 0, and the treatment process is ended.

The filling unit is positioned in the shell 3, the fluid medium is always stored in the storage cavity 4, the filling unit and the pressure regulating unit are integrated on the shell 3, a pressure pump does not need to be prepared independently in use, the fluid medium is filled into the balloon through the liquid supply unit, consumable materials can be reduced, the structure is simplified, the cost is saved, and the operation is simplified. The automatic filling mechanism and the balloon catheter are of an integrated structure, an operator does not need to be connected in the using process, and the operation is convenient and fast.

One specific structure of the drive assembly is as follows: referring to fig. 1, the pressure regulating device comprises a piston 7, a driving rod 8 and a power component 17, wherein the piston 7 is positioned in the storage cavity 4, one end of the driving rod 8 is connected with the piston 7, the other end of the driving rod 8 penetrates through the storage cavity 4 to be in transmission connection with the power component 17, and the power component 17 is connected with the pressure regulating unit, namely the power component 17 is connected with a controller 6 of the pressure regulating unit.

The power part 17 has various structures, such as a motor, the controller 6 is connected with the motor, the driving rod 8 is connected with an output shaft of the motor, and the power part 17 drives the driving rod 8 to axially move along the storage cavity 4, so as to drive the piston 7 to axially move along the storage cavity 4 (such as to move left and right in fig. 1).

When the adjusting operation element 5 locks a target pressure, the controller 6 controls the power element 17 to drive the driving rod 8 to move so as to drive the piston 7 to extrude the fluid medium, so that the fluid medium is pushed into the balloon 2 to be filled with the fluid medium until the target pressure is reached; when the treatment process is finished, the adjusting operation part 5 is adjusted to enable the target pressure to be 0, the controller 6 controls the power part 17 to enable the driving rod 8 to retract so as to drive the piston 7 to retract, the fluid medium in the balloon 2 flows back to the storage cavity 4, the internal pressure of the balloon 2 is enabled to be 0, and the treatment process is finished.

The adjusting operation member 5 is a rotating wheel, a knob or a key, and when the adjusting operation member 5 is a rotating wheel, referring to fig. 2, a locking mechanism is further disposed in the housing 3, and when the pressure adjusting rotating wheel is rotated to a target pressure, the locking mechanism is operated to limit the rotation of the rotating wheel and maintain the target pressure, and the locking mechanism has various structures, and belongs to the general knowledge in the art, and the detailed description thereof is omitted here. When the adjusting and operating member 5 is a rotating wheel or a knob, the catheter further comprises a rotation amount recognizer, such as an encoder, the rotation amount recognizer is connected with the controller 6 to recognize the rotation variable of the adjusting and operating member 5, then the rotation variable is converted into an electric signal and fed back to the controller 6, and the controller 6 sends a driving instruction to the driving assembly according to the received electric signal.

When the adjusting operation piece 5 is a key, the key is connected with the controller 6, and the key is operated to input a target pressure value, so that the operation is simple. Or the adjusting operation piece 5 is a numerical control touch screen, and a target pressure value is input on the numerical control touch screen.

The pressure regulating unit further comprises a pressure display screen 14, the pressure display screen 14 is arranged on the surface of the shell 3, and the pressure display screen 14 is used for displaying the target pressure or the real-time pressure in the balloon 2. When the target pressure is set, the target pressure can be displayed on the pressure display screen 14 by operating the adjustment operation member 5; if the pressure loss occurs during use, the real-time pressure in the balloon 2 can be displayed on the pressure display screen 14, so that the operator can clearly know the pressure in the balloon 2.

In order to ensure that the hydraulic pressure inside the balloon 2 is stable and maintain the target pressure in use, the pressure regulating unit further comprises a hydraulic sensor 9, the hydraulic sensor 9 is arranged inside the catheter main body 1 and/or inside the balloon 2, the hydraulic sensor 9 is connected with the controller 6, the hydraulic sensor 9 is used for detecting the pressure inside the balloon 2 and sending the detection result to the controller 6, the controller 6 controls the action of the driving assembly according to the detection result, and when the pressure inside the balloon 2 is smaller than the target pressure, the controller 6 receives the detection result and controls the driving assembly to push the fluid medium in the storage cavity 4 into the balloon 2 so as to fill the fluid medium inside the balloon 2 until the target pressure inside the balloon 2 is reached. The hydraulic pressure inside the balloon 2 is stabilized by feedback from the hydraulic pressure sensor 9 and further by controlling the movement of the drive rod 8 and the piston 7.

The controller 6 is preferably a circuit board integrated in the housing 3, to which the hydraulic pressure sensor 9 is connected by means of wires, controlled by the circuit board.

The catheter also comprises a stress sleeve 12 and an electrode device 16, wherein the stress sleeve 12 is sleeved between the shell 3 and the catheter main body 1 and plays a role of transiting and connecting the catheter main body 1 and the shell 3, and the stress sleeve 12 is preferably in a cone-shaped structure. The electrode device 16 is arranged on the catheter main body 1 positioned in the sacculus 2, the electrode device 16 has various structures, the electrode device 16 comprises an inner electrode and an outer electrode, and the inner electrode and the outer electrode are both annularly sleeved on the catheter main body 1 positioned in the sacculus 2; or the electrode device 16 comprises an electrode tip disposed on the catheter body 1 within the balloon 2. The shock waveguide further comprises a developing ring 15, the developing ring 15 is arranged on the catheter body 1 in the balloon 2, the developing ring 15 is a marking ring for indicating the length, and the developing rings 15 are preferably arranged in two.

Another embodiment of the utility model provides a seismic wave generating system, see fig. 3, it includes the pipe, energy generator 10, the pipe includes the sacculus pipe, automatic sufficient mechanism, the sacculus pipe includes pipe main part 1, connect sacculus 2 and electrode device 16 at pipe main part 1 distal end, electrode device 16 sets up on being located sacculus 2 pipe main part 1, energy generator 10 is connected with electrode device 16 electricity, energy generator 10 can send and regulate and control the supersound of specific frequency and make electrode device 16 form the cavitation bubble and then produce the shock wave, the shock wave strikes the regional realization of calcification and breaks calcified pathological change.

The energy generator 10 includes a body and a display screen 101 and a switch 102 provided on the body. The shell 3 is connected with the energy generator 10 for controlling the operation of the energy generator 10, a button 31 for controlling the energy generator 10 is arranged on the shell 3, the button 31 is connected with the controller 6, the controller 6 is connected with the energy generator 10 through the connector 11, the controller 6 is connected with the connector 11 through the connecting wire 18, and the button 31 on the shell 3 is used for triggering the energy generator 10. Reservoir 4, button 31 set up respectively in the both sides of being located catheter body 1 in casing 3, and reservoir 4 preferably sets up the downside that is located catheter body 1 in casing 3, improves structural stability. The button 31 is preferably near the distal end of the housing 3 (the distal end of the housing 3 is near the balloon 2 and the proximal end is far from the balloon 2), and when the housing 3 is held by an operator, the fingers approach the button 31 to facilitate operation of the button 31.

The utility model discloses a sufficient unit, pressure regulating unit integration are on the casing for automatic sufficient mechanism and sacculus pipe structure as an organic whole, need not to prepare the force pump alone in use, also need not to fill fluid medium to the sacculus through the liquid supply unit again, and the operator need not to reconnect, need not worry fluid medium capacity not enough, only need operate the regulation operating parts can realize the automatic sufficient fluid medium in the sacculus, and easy operation is swift, reduces the consumptive material, simplifies the structure, practices thrift the cost; through the synergistic effect of the filling unit and the pressure adjusting unit, the target pressure of the balloon catheter can be set, the hydraulic pressure in the balloon can be monitored in real time, and fluid media in the balloon can be supplemented in real time to maintain the target pressure, so that the controllable hydraulic pressure in the balloon is realized.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A catheter comprising a balloon catheter, said balloon catheter comprising a catheter body, a balloon attached to a distal end of said catheter body, said catheter body in communication with said balloon, wherein: the catheter still include automatic filling mechanism, automatic filling mechanism include:

a housing fixedly attached to the proximal end of the catheter body;

2. The catheter of claim 1, wherein: when the pressure in the balloon is smaller than the target pressure, the pressure regulating unit controls the driving assembly to push the fluid medium in the storage cavity into the balloon; when the pressure adjusting unit adjusts the target pressure in the balloon to 0, the pressure adjusting unit controls the driving assembly to suck the fluid medium in the balloon back into the storage cavity.

3. The catheter of claim 1 or 2, wherein: the pressure adjusting unit comprises an adjusting operation piece and a controller, the adjusting operation piece is arranged on the surface of the shell, the controller is arranged in the shell, the adjusting operation piece is connected with the controller, the controller is connected with the driving assembly, the adjusting operation piece is used for inputting target pressure to the controller, and the controller is used for sending a driving instruction to the driving assembly according to the target pressure.

4. A catheter as recited in claim 3, wherein: the pressure adjusting unit also comprises a hydraulic sensor, the hydraulic sensor is connected with the controller, and the hydraulic sensor is used for detecting the pressure in the balloon and sending the detection result to the controller.

5. The catheter of claim 4, wherein: the hydraulic sensor is arranged in the catheter main body and/or the sacculus.

6. The catheter of claim 4, wherein: the pressure adjusting unit further comprises a pressure display screen, the pressure display screen is arranged on the surface of the shell, and the pressure display screen is used for displaying target pressure or real-time pressure in the saccule.

7. A catheter as recited in claim 3, wherein: the reservoir contains a fluid medium.

8. The catheter of claim 1, wherein: the driving assembly comprises a piston, a driving rod and a power part, the piston is located in the storage cavity, one end of the driving rod is connected with the piston, the other end of the driving rod penetrates out of the storage cavity to be connected with the power part in a transmission mode, and the power part is connected with the pressure adjusting unit.

9. The catheter of claim 1, wherein: the catheter also comprises a stress sleeve which is sleeved between the shell and the catheter main body.

10. The catheter of claim 1, wherein: the balloon catheter also comprises an electrode device, and the electrode device is arranged on a catheter main body positioned in the balloon.

11. A seismic wave generation system, which comprises a conduit and an energy generator, and is characterized in that: the catheter of any one of claims 1 to 10, comprising an electrode arrangement, the energy generator being electrically connected to the electrode arrangement.