High voltage pulse generator for identification of a catheter, catheter identification device and shock wave device
Patent Information
- Application Number
- CN202211164021.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-23
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2042-09-23
Smart Images
Figure CN115389852B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of high-voltage generators, and more particularly to a high-voltage pulse generator for identifying conduits, a conduit identification device, and a shock wave device. Background Technology
[0002] Existing shockwave therapy systems for treating calcification or high-voltage pulse systems for treating atrial fibrillation all use disposable catheters. Before treatment, the expiration date and model of the catheter must be determined. This is to allow for the setting of different treatment parameters based on the catheter model in clinical practice to achieve the best treatment effect, and also to avoid medical accidents caused by the use of expired products in surgery.
[0003] The current practice is to store the catheter's model and expiration date information in the memory inside the catheter handle. When the catheter handle is connected to the generator via the tail wire, the generator reads the data stored in the handle to determine the catheter information.
[0004] The above background information is provided only to assist in understanding the inventive concept and technical solution of this invention. It does not necessarily belong to the prior art of this patent application, nor does it necessarily provide technical teaching. In the absence of clear evidence that the above information was disclosed before the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention
[0005] The purpose of this invention is to provide a high-voltage pulse generator, a catheter identification device, and a shock wave device for identifying catheters, which can identify the model information of the connected catheters.
[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0007] A high-voltage pulse generator for identifying catheter type includes a high-voltage pulse generating circuit, and the high-voltage pulse generator further includes a processor, a memory, a sampling circuit, and an identification circuit for identifying the electrical connection between the generator and the catheter.
[0008] The sampling circuit is configured to sample the electrical signal between the identification circuit and the catheter when the identification circuit is electrically connected to the catheter, and send the sampled signal to the processor.
[0009] The memory stores one or more catheter models and their corresponding electrical data;
[0010] The processor is configured to match the sampled signal from the sampling circuit with electrical data pre-stored in the memory to determine the corresponding catheter model information.
[0011] Furthermore, the identification circuit includes a first power module, a second power module, and a first multi-point control switch, wherein the first power module is connected to the first contact of the first multi-point control switch through a first resistor, the second power module is connected to the second contact of the first multi-point control switch through a second resistor, the first power module is configured to output a positive voltage, and the second power module is configured to output a negative voltage.
[0012] The sampling circuit is connected to the control terminal of the first multi-point control switch;
[0013] The conduit configured to be electrically connected to the identification circuit contains an identification circuit, wherein the identification circuit includes a first diode, a second diode, a ground terminal, and an input interface, wherein the input interface is configured to be connected to the control terminal of the first multi-point control switch, and the positive terminal of the first diode and the negative terminal of the second diode are both connected to the input interface;
[0014] The negative terminal of the first diode is grounded through a fuse, and the positive terminal of the second diode is grounded through a fuse.
[0015] Continuing with any one or a combination of the aforementioned technical solutions, further, the first power supply module is an amplitude-adjustable positive power supply, and the second power supply module is an amplitude-adjustable negative power supply; or,
[0016] The first power module includes a first positive power supply, a second positive power supply, and a second multi-point control switch. The second power module includes a first negative power supply, a second negative power supply, and a third multi-point control switch. The first positive power supply and the second positive power supply have different amplitudes, and the first negative power supply and the second negative power supply also have different amplitudes. There are multiple first and second resistors. The first positive power supply is connected to a first contact of the second multi-point control switch through one of the first resistors, and the second positive power supply is connected to a second contact of the second multi-point control switch through another of the first resistors. The first negative power supply is connected to a first contact of the third multi-point control switch through one of the second resistors, and the second negative power supply is connected to a second contact of the third multi-point control switch through another of the second resistors. The control terminal of the second multi-point control switch is connected to the first contact of the first multi-point control switch, and the control terminal of the third multi-point control switch is connected to the second contact of the first multi-point control switch.
[0017] Furthermore, in accordance with any or a combination of the aforementioned technical solutions, each catheter's catheter model information includes a unique identification code, and the memory also stores the service life information corresponding to the catheter's unique identification code;
[0018] The first power module and the second power module are turned on in a time-division manner by the first multi-point control switch. The first power module and the second power module output a lower amplitude voltage or current respectively. If the sampling circuit samples the electrical signal, one of the first power module and the second power module is switched to a higher amplitude voltage or current, thereby blowing the fuse connected to the corresponding power module. The processor associates the current time as the first connection time with the unique identification code of the currently connected conduit and stores the association information in the memory, and determines the service life information corresponding to the unique identification code of the current conduit.
[0019] If the sampling circuit fails to sample an electrical signal when the first power module or the second power module outputs a low amplitude voltage or current, the processor determines the service life information corresponding to the unique identification code of the current conduit and the associated first connection time.
[0020] If the usage period or the initial connection time expires, the other of the first power module and the second power module will be switched to a higher amplitude voltage or current, thereby blowing the fuse connected to that power module.
[0021] In accordance with any or a combination of the aforementioned technical solutions, the identification circuit further includes at least one positive power supply, at least one negative power supply, and a first interface electrically connected to the conduit. A resistor or capacitor is provided between the positive power supply and the first interface, and a resistor or capacitor is provided between the negative power supply and the first interface.
[0022] The conduit configured to be electrically connected to the identification circuit contains an identification circuit, wherein the identification circuit includes a first diode, a second diode, and a second interface that can be plugged into and cooperate with the first interface, wherein the positive terminal of the first diode is connected to the second interface, and the negative terminal of the second diode is connected to the second interface;
[0023] If a capacitor is provided between the positive power supply and the first interface, the negative terminal of the first diode is grounded through a resistor. If a capacitor is provided between the negative power supply and the first interface, the positive terminal of the second diode is grounded through a resistor. If a resistor is provided between the positive power supply and the first interface, the negative terminal of the first diode is grounded through a resistor, capacitor, or fuse. If a resistor is provided between the negative power supply and the first interface, the positive terminal of the second diode is grounded through a resistor, capacitor, or fuse.
[0024] Continuing with any one or a combination of the aforementioned technical solutions, further, the first interface has wiring corresponding one-to-one with the positive power supply and the negative power supply, and the second interface has multiple corresponding wiring; or,
[0025] The first interface is the output control terminal of one or more multi-point control switches, and the positive power supply and negative power supply are respectively connected to different contacts of one of the multi-point control switches.
[0026] In accordance with any or a combination of the aforementioned technical solutions, the identification circuit further includes one or more power supplies of the same polarity, a first interface electrically connected to the conduit, and a resistor or capacitor is provided between the power supply and the first interface;
[0027] The conduit configured to be electrically connected to the identification circuit contains an identification circuit, wherein the identification circuit includes a ground terminal and a second interface that can be plugged into the first interface. If a capacitor is provided between the power supply and the first interface, the second interface is grounded through a resistor; if a resistor is provided between the power supply and the first interface, the second interface is grounded through a resistor or a capacitor.
[0028] Continuing with any one or a combination of the foregoing technical solutions, further, the first interface has wiring corresponding to the power supply, and the second interface has wiring corresponding to the first interface; or,
[0029] The first interface is the output control terminal of one or more multi-point control switches, and the power supply is connected to the contact of one of the multi-point control switches in a corresponding manner.
[0030] Continuing with any one or a combination of the aforementioned technical solutions, further, if capacitors are provided in both the identification circuit and the identified circuit, then...
[0031] If the identified circuit has a capacitor, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; and in response to the sampling circuit sampling the voltage signal between the identified circuit and the conduit, the processor starts timing, and when the increase value of the voltage signal sampled by the sampling circuit is less than a preset voltage threshold, the processor stops timing and calculates the actual time required for capacitor charging.
[0032] If the identification circuit is equipped with a capacitor, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; and in response to the sampling circuit sampling the current signal between the identification circuit and the conduit, the processor starts timing, and when the amplitude of the current signal sampled by the sampling circuit decreases to less than a preset current threshold, the processor stops timing and calculates the actual time required for capacitor charging.
[0033] According to another aspect of the present invention, a catheter identification device is provided for identifying the model information of a catheter when electrically connected to it, the catheter identification device comprising a processor, a memory, a sampling circuit, and an identification circuit having a power supply;
[0034] The sampling circuit is configured to sample the electrical signal between the identification circuit and the catheter when the identification circuit is electrically connected to the catheter, and send the sampled signal to the processor.
[0035] The memory stores one or more catheter models and their corresponding electrical data;
[0036] The processor is configured to match the sampled signal from the sampling circuit with electrical data pre-stored in the memory to determine the corresponding catheter model information.
[0037] Furthermore, the identification circuit includes at least one positive power supply, at least one negative power supply, and a first interface electrically connected to the conduit. A resistor or capacitor is provided between the positive power supply and the first interface, and a resistor or capacitor is provided between the negative power supply and the first interface.
[0038] The identified circuit includes a first diode, a second diode, and a second interface that can be plugged into and cooperate with the first interface, wherein the positive terminal of the first diode is connected to the second interface, and the negative terminal of the second diode is connected to the second interface.
[0039] If a capacitor is provided between the positive power supply and the first interface, the negative terminal of the first diode is grounded through a resistor; if a capacitor is provided between the negative power supply and the first interface, the positive terminal of the second diode is grounded through a resistor; if a resistor is provided between the positive power supply and the first interface, the negative terminal of the first diode is grounded through a resistor or a capacitor; if a resistor is provided between the negative power supply and the first interface, the positive terminal of the second diode is grounded through a resistor or a capacitor.
[0040] Optionally, the first interface has wiring corresponding one-to-one with the positive and negative power supplies, and the second interface has multiple corresponding wirings; or,
[0041] The first interface is the output control terminal of one or more multi-point control switches, and the positive power supply and negative power supply are respectively connected to different contacts of one of the multi-point control switches.
[0042] Furthermore, the identification circuit includes one or more power sources with the same polarity, a first interface electrically connected to the conduit, and a resistor or capacitor is provided between the power source and the first interface;
[0043] The identified circuit includes a ground terminal and a second interface that can be plugged into the first interface. If a capacitor is provided between the power supply and the first interface, the second interface is grounded through a resistor; if a resistor is provided between the power supply and the first interface, the second interface is grounded through a resistor or a capacitor.
[0044] Optionally, the first interface has wiring corresponding to the power supply, and the second interface has wiring corresponding to the first interface; or,
[0045] The first interface is the output control terminal of one or more multi-point control switches, and the power supply is connected to the contact of one of the multi-point control switches in a corresponding manner.
[0046] Furthermore, if the identified circuit has a capacitor, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; and in response to the sampling circuit sampling the voltage signal between the identified circuit and the conduit, the processor starts timing, and when the increase value of the voltage signal sampled by the sampling circuit is less than a preset voltage threshold, the processor stops timing and calculates the actual time required for capacitor charging.
[0047] If the identification circuit is equipped with a capacitor, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; and in response to the sampling circuit sampling the current signal between the identification circuit and the conduit, the processor starts timing, and when the amplitude of the current signal sampled by the sampling circuit decreases to less than a preset current threshold, the processor stops timing and calculates the actual time required for capacitor charging.
[0048] According to another aspect of the present invention, a shock wave device is provided, comprising a conduit and a high-voltage pulse generator as described above, wherein the conduit includes a tube body and a conduit handle, and the conduit handle is provided with an identification circuit that can be connected to the identification circuit.
[0049] The beneficial effects of the technical solution provided by this invention are as follows:
[0050] a. The identification circuit for identifying the catheter and the memory for storing basic data are placed inside the generator, so as not to affect the sterilization and disinfection of the catheter;
[0051] b. To prevent data transmission failure or errors due to communication interference during the transmission of stored data from the conduit end to the generator via the tail wire. Attached Figure Description
[0052] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0053] Figure 1 A circuit diagram for identifying the expiration date and model information of a conduit using a high-voltage pulse generator, provided as an exemplary embodiment of the present invention;
[0054] Figure 2 To utilize Figure 1 A schematic diagram of the circuit identification process for the conduit model and expiration date;
[0055] Figure 3 To and Figure 2 This is another workflow diagram that adjusts the order in which catheter models are identified;
[0056] Figure 4 For replacement Figure 1 A schematic diagram of another identification circuit in the implementation method;
[0057] Figure 5 A circuit diagram of a high-voltage pulse generator for identifying conduit type is provided as an exemplary embodiment of the present invention.
[0058] Figure 6 For based on Figure 5 A circuit diagram to reduce the number of wires;
[0059] Figure 7 To be Figure 5 A circuit diagram for identifying a catheter by replacing the resistor inside the catheter with a capacitor.
[0060] Figure 8 For based on Figure 7 A circuit diagram to reduce the number of wires;
[0061] Figure 9 To be Figure 5 A circuit diagram showing the identification conduit where the resistor inside the generator is replaced with a capacitor.
[0062] Figure 10 For based on Figure 9 A circuit diagram to reduce the number of wires. Detailed Implementation
[0063] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0064] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, apparatus, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.
[0065] As mentioned in the background art, storing catheter information in a memory within the catheter handle has at least the following drawbacks in determining the catheter model: First, when using this memory method to store catheter model and expiration date, the sterilization method of the catheter cannot be arbitrarily selected due to the need to protect the memory from damage, which may lead to incomplete sterilization; second, the catheter and generator are usually connected by a long tail wire, and communication is easily interfered with when using the memory.
[0066] In one embodiment of the present invention, a high-voltage pulse generator for identifying catheter type is provided, including a high-voltage pulse generating circuit. The high-voltage pulse generator further includes a processor, a memory, a sampling circuit, and an identification circuit for identifying the electrical connection between the generator and the catheter.
[0067] The sampling circuit is configured to sample the electrical signal between the identification circuit and the catheter when the identification circuit is electrically connected to the catheter, and send the sampled signal to the processor.
[0068] The memory stores one or more catheter models and their corresponding electrical data;
[0069] The processor is configured to match the sampled signal from the sampling circuit with electrical data pre-stored in the memory to determine the corresponding catheter model information.
[0070] There are various circuits that can implement the above embodiments, which will be described in detail below:
[0071] like Figure 1 The circuit shown, in conjunction with, as Figure 2 The flowchart shown can determine not only the catheter model information, but also the catheter's expiration date. Figure 1 Power supply 11 is an adjustable positive power supply, and power supply 12 is an adjustable negative power supply. Power supply 11 is connected through the first resistor ( Figure 1 R11 in the middle) and the first multi-point control switch (i.e. Figure 1 The first contact of the single-pole double-throw switch 1) is connected, and the power supply 12 is connected through the second resistor ( Figure 1 R12) is connected to the second contact of the first multi-point control switch;
[0072] The sampling circuit is connected to the control terminal of the first multi-point control switch;
[0073] The conduit, configured to be electrically connected to the identification circuit, contains an identification circuit. The conduit includes a body and a handle. The identification circuit is disposed within the handle, which can be connected to the generator's identification circuit via a tail cable. Specifically, the identification circuit includes a first diode (…). Figure 1 D12 in the middle), the second diode ( Figure 1 The first diode has a D11 terminal, a ground terminal, and an input interface, wherein the input interface is configured to be connected to the control terminal of the first multi-point control switch, and the positive terminal of the first diode and the negative terminal of the second diode are both connected to the input interface.
[0074] The negative terminal of the first diode is grounded through a fuse, and the positive terminal of the second diode is grounded through a fuse.
[0075] Each catheter's catheter model information includes a unique identification code, and the memory also stores the service life information corresponding to the catheter's unique identification code;
[0076] Power supplies 11 and 12 are switched on in a time-division manner by the first multi-point control switch. When the generator is connected to the conduit, power supply 11 first outputs a lower amplitude voltage or current. If the sampling circuit samples an electrical signal, power supply 12 is switched to output a lower amplitude voltage or current. If the sampling circuit samples an electrical signal, it indicates that the current conduit is a new conduit. Power supply 12 is then controlled to output a higher amplitude voltage or current, thereby blowing the corresponding fuse F11. The processor associates the current time as the first connection time with the unique identification code of the currently connected conduit and stores the association information in the memory. It also determines the usage period information corresponding to the unique identification code of the current conduit. If the current date has exceeded the usage period information, power supply 11 is controlled to output a higher amplitude voltage or current, thereby blowing the corresponding fuse F12. In this way, the generator cannot be connected to the conduit, forcibly preventing the expired conduit from being put into use.
[0077] If the sampling circuit does not sample an electrical signal (i.e., the voltage signal is 0) when the power supply 12 outputs a low amplitude voltage or current, it indicates that the fuse F11 has blown, meaning that the conduit has been connected before. The processor then queries the conduit's corresponding usage period information and the associated first connection time. For example, if the validity period after activation is specified as 5*24 hours after the first connection, the processor must not only determine whether the current date exceeds the usage period, but also determine which day after the first connection the current date is. As long as one of the overdue conditions is met, the power supply 11 will output a higher amplitude voltage or current, thereby blowing the corresponding fuse F12.
[0078] Here, fuse F11 is blown when the first connection is detected, and fuse F12 is blown when the expiration date is detected. Obviously, in another embodiment, the two are switched. That is, when the first connection is detected, the control power supply 11 outputs a higher amplitude voltage or current, thereby blowing the corresponding fuse F12. When the expiration date is detected, the control power supply 12 outputs a higher amplitude voltage or current, thereby blowing the corresponding fuse F11. This is a simple substitution.
[0079] Power sources 11 and 12 can be either voltage sources or current sources. In this embodiment, the range of "lower amplitude" is limited to a range insufficient to melt the fuse, and the range of "higher amplitude" is limited to a range sufficient to melt the fuse.
[0080] Unlike the embodiments described above, as Figure 4 As shown, the first power module includes a first positive power supply ( Figure 4 Power supply 11), second positive power supply ( Figure 4 The power supply 12), the second multi-point control switch ( Figure 4 The second power module includes a first negative power supply (switch 1). Figure 4 Power supply 13), second negative power supply ( Figure 4 The power supply 14), the third multi-point control switch ( Figure 4 Switch 2 in the middle, where, Figure 4 Power supplies 11 and 12 have different amplitudes, and power supplies 13 and 14 have different amplitudes. The first positive power supply passes through... Figure 4 Resistor R11 is connected to the first contact of the second multi-point control switch, and the second positive power supply is connected through... Figure 4 Resistor R12 is connected to the second contact of the second multi-point control switch; the first negative power supply is connected through... Figure 4 Resistor R13 is connected to the first contact of the third multi-point control switch, and the second negative power supply is connected through... Figure 4 Resistor R14 is connected to the second contact of the third multi-point control switch; the control terminal of the second multi-point control switch is connected to the first multi-point control switch. Figure 4 The first contact of switch 3) is connected, and the control terminal of the third multi-point control switch is connected to the second contact of the first multi-point control switch.
[0081] In this embodiment, different power supplies are used to achieve different output voltage amplitudes, for example... Figure 4 Power supply 11 outputs a "lower amplitude" positive voltage or positive current as described in the above embodiment, power supply 12 outputs a "higher amplitude" positive voltage or positive current as described in the above embodiment, power supply 13 outputs a "lower amplitude" negative voltage or negative current as described in the above embodiment, and power supply 14 outputs a "higher amplitude" negative voltage or negative current as described in the above embodiment.
[0082] This embodiment has four power supplies, from power supply 11 to power supply 14, which can be configured as follows: Figure 4 The three single-pole double-throw switches shown can also be configured as a four-point control switch, i.e. Figure 4 Switches 1, 2, and 3 can be three independent switches or a multi-way switch.
[0083] The method and steps for identifying new catheter connections and catheter expiration dates can be the same as in the above embodiments, or the step of identifying the catheter model can be changed from occurring after identifying whether it is a new catheter to occurring before identifying whether it is a new catheter, such as... Figure 3 The flowchart shown.
[0084] In one embodiment of the present invention, the service life of the catheter is not identified; only the catheter model information is identified to set the treatment parameters of the generator, thereby achieving a better treatment effect. Correspondingly, the circuit structure is compared to... Figure 1 It's simpler, such as Figure 5As shown, the identification circuit includes one or more power sources with the same polarity (the two power sources in this figure are only for illustration), a first interface electrically connected to the conduit, and a resistor is provided between the power source and the first interface;
[0085] The conduit configured to be electrically connected to the identification circuit contains an identification circuit, wherein the identification circuit includes a ground terminal and a second interface that can be plugged into the first interface, and the second interface is grounded through a resistor.
[0086] Both the first and second interfaces have wiring corresponding to the number of power supplies, which can be as follows: Figure 5 The two shown can also be three, four, or more than five. The more power sources there are, the more combinations of voltage information can be sampled, which can be used to identify more types of conduit models.
[0087] The power supply can be a voltage source or a current source; it can be an AC power supply or a DC power supply. The sampling circuit sends the sampled voltage signal to the processor; the processor matches the sampled voltage value with the voltage data pre-stored in the memory, and then determines the conduit model information associated with the matched voltage data.
[0088] In one embodiment of the present invention, with Figure 5 The corresponding implementation differs in that it uses a multi-point control switch to reduce the number of wires, specifically as follows: Figure 6 As shown: The identification circuit includes at least one positive power supply and at least one negative power supply. The other end of the resistors connected to the power supplies is connected to different contacts of the multi-point control switch. The output control terminal of the switch serves as the first interface for electrical connection with the conduit.
[0089] Accordingly, a first diode is added to the circuit being identified. Figure 6 D2 in the middle) and the second diode ( Figure 6 In the first interface, the connection point between the positive terminal of the first diode and the negative terminal of the second diode (D1) serves as the second interface connected to the first interface.
[0090] The negative terminal of the first diode is grounded through a resistor, and the positive terminal of the second diode is grounded through a resistor.
[0091] The method of using a multi-point control switch to control the positive and negative power supplies to be turned on in a time-sharing manner, and sampling circuit to sample the voltage at the output control terminal of the multi-point control switch, and then identifying the conduit type by sampling the voltage value, is the same as in the above embodiment.
[0092] In one embodiment of the present invention, with Figure 5 The difference in the corresponding embodiment is that the grounding resistor in the identified circuit is adjusted to a capacitor, with a capacitance value ranging from 10pF to 1000uf. Figure 7As shown, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; in response to the sampling circuit sampling the voltage signal between the identification circuit and the conduit, the processor starts timing, and when the increase value of the voltage signal sampled by the sampling circuit is less than a preset voltage threshold, for example, the voltage difference between two consecutive samples is less than 0.1V or equal to 0V, the processor stops timing and calculates the actual time required for capacitor charging;
[0093] The calculated actual time is used to match the time required for the capacitor in the memory to complete charging, which in turn relates to the type of conduit.
[0094] In one embodiment of the present invention, with Figure 7 The corresponding implementation differs in that it uses a multi-point control switch to reduce the number of wires, specifically as follows: Figure 8 As shown: The identification circuit includes at least one positive power supply and at least one negative power supply. The other end of the resistors connected to the power supplies is connected to different contacts of the multi-point control switch. The output control terminal of the switch serves as the first interface for electrical connection with the conduit.
[0095] Accordingly, a first diode is added to the circuit being identified. Figure 8 D2 in the middle) and the second diode ( Figure 8 In the first interface, the connection point between the positive terminal of the first diode and the negative terminal of the second diode (D1) serves as the second interface connected to the first interface.
[0096] The negative terminal of the first diode is grounded through a capacitor, and the positive terminal of the second diode is grounded through a capacitor.
[0097] The multi-point control switch controls the positive and negative power supplies to be turned on in a time-sharing manner. The sampling circuit samples the voltage at the output control terminal of the multi-point control switch, and then uses the sampled voltage value to determine whether the capacitor has finished charging. The method of identifying the conduit model by the capacitor charging completion time is the same as in the above embodiment.
[0098] In one embodiment of the present invention, with Figure 5 The corresponding embodiment differs in that the resistor connected to the power supply in the identification circuit is changed to a capacitor, such as... Figure 9 As shown, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging;
[0099] The sampling circuit is configured to sample the current signal at the end of the capacitor away from the power supply.
[0100] In response to the sampling circuit sampling the current signal between the identification circuit and the conduit, the processor starts timing, and when the amplitude of the current signal sampled by the sampling circuit decreases to less than a preset current threshold, for example, the difference between two consecutive current samples is less than 10mA or equal to 0mA, the processor stops timing and calculates the actual charging time of the capacitor.
[0101] The calculated actual time is used to match the time required for the capacitor in the memory to complete charging, and then the model of the conduit is associated with it, just like in the above embodiment.
[0102] In one embodiment of the present invention, with Figure 9 The corresponding implementation differs in that it uses a multi-point control switch to reduce the number of wires, specifically as follows: Figure 10 As shown: The identification circuit includes at least one positive power supply and at least one negative power supply. The other plates of the capacitors connected to the power supplies are connected to different contacts of the multi-point control switch in a corresponding manner. The output control terminal of the switch serves as the first interface for electrical connection with the conduit.
[0103] Accordingly, a first diode is added to the circuit being identified. Figure 10 D2 in the middle) and the second diode ( Figure 10 In the first interface, the connection point between the positive terminal of the first diode and the negative terminal of the second diode (D1) serves as the second interface connected to the first interface.
[0104] The negative terminal of the first diode is grounded through a resistor, and the positive terminal of the second diode is grounded through a resistor.
[0105] The multi-point control switch controls the positive and negative power supplies to be turned on in a time-sharing manner. The sampling circuit samples the current at the output control terminal of the multi-point control switch, and then uses the sampled current value to determine whether the capacitor has finished charging. The method of identifying the conduit model by the capacitor charging completion time is the same as in the above embodiment.
[0106] This embodiment and Figure 8 , Figure 6 The diagram shows a positive power supply and a negative power supply, with a two-point control switch as the integrated output interface. However, this invention does not limit the number of positive and negative power supplies. The number of points or switches of the multi-point control switch can be adjusted according to the total number of power supplies.
[0107] In an embodiment not shown, the above embodiments can be adjusted to obtain new identification circuits and identified circuits, for example, by... Figure 7 , Figure 8 The positions of resistor R1 and capacitor C1 in the circuit are swapped.
[0108] In one embodiment of the present invention, a catheter identification device is provided for identifying the model information of a catheter when electrically connected to it. The catheter identification device is external to the high-voltage pulse generator of the shock wave device. After identifying the catheter information, if the identification is appropriate, such as a model match, the catheter is transferred from the identification device to the generator, and the generator is optimized according to the catheter model. If the identification result is inappropriate, such as a model mismatch or an expired catheter, the catheter is not put into use.
[0109] Specifically, the identification device includes a processor, a memory, a sampling circuit, and an identification circuit with a power supply;
[0110] The sampling circuit is configured to sample the electrical signal between the identification circuit and the catheter when the identification circuit is electrically connected to the catheter, and send the sampled signal to the processor.
[0111] The memory stores one or more catheter models and their corresponding electrical data;
[0112] The processor is configured to match the sampled signal from the sampling circuit with electrical data pre-stored in the memory to determine the corresponding catheter model information.
[0113] The identification device in this embodiment differs from the previous embodiment in that the identification circuit is located inside the generator. The structure and principle of other identification circuits can be similar. Figure 1 , Figure 3-10 The corresponding embodiments are the same, or combinations of multiple embodiments.
[0114] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0115] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A high-voltage pulse generator for identifying catheter type, comprising a high-voltage pulse generating circuit, characterized in that, The high-voltage pulse generator also includes a processor, a memory, a sampling circuit, and an identification circuit for identifying the electrical connection between the generator and the conduit; The identification circuit includes a first power module, a second power module, and a first multi-point control switch. The first power module is connected to a first contact of the first multi-point control switch via a first resistor, and the second power module is connected to a second contact of the first multi-point control switch via a second resistor. The first power module is configured to output a positive voltage, and the second power module is configured to output a negative voltage. The sampling circuit is connected to the control terminal of the first multi-point control switch. A conduit configured to be electrically connected to the identification circuit contains an identification circuit, which includes a first diode, a second diode, a ground terminal, and an input interface. The input interface is configured to be connected to the control terminal of the first multi-point control switch, and the anode of the first diode and the cathode of the second diode are both connected to the input interface. The cathode of the first diode is grounded via a fuse, and the anode of the second diode is grounded via a fuse. The first power supply module is an amplitude-adjustable positive power supply, and the second power supply module is an amplitude-adjustable negative power supply; or, the first power supply module includes a first positive power supply, a second positive power supply, and a second multi-point control switch, and the second power supply module includes a first negative power supply, a second negative power supply, and a third multi-point control switch, wherein the amplitude of the first positive power supply is lower than that of the second positive power supply, the amplitude of the first negative power supply is lower than that of the second negative power supply, and there are multiple first and second resistors. The first positive power supply is connected to a first contact of the second multi-point control switch through one of the first resistors, and the second positive power supply is connected to a second contact of the second multi-point control switch through another of the first resistors; the first negative power supply is connected to a first contact of the third multi-point control switch through one of the second resistors, and the second negative power supply is connected to a second contact of the third multi-point control switch through another of the second resistors; the control terminal of the second multi-point control switch is connected to the first contact of the first multi-point control switch, and the control terminal of the third multi-point control switch is connected to the second contact of the first multi-point control switch; The first power module and the second power module are turned on in a time-division manner by the first multi-point control switch. The first power module and the second power module output a low amplitude voltage or current respectively. The range of the low amplitude is limited to a range that is insufficient to blow the fuse. If the sampling circuit samples the electrical signal, one of the first power module and the second power module is switched to a higher amplitude voltage or current. The range of the higher amplitude is limited to a range that is sufficient to blow the fuse, thereby blowing the fuse corresponding to the power module. The processor associates the current time as the first connection time with the unique identification code of the currently connected conduit and stores the association information in the memory. It also determines the service life information corresponding to the unique identification code of the current conduit. The sampling circuit is configured to sample the electrical signal between the identification circuit and the catheter when the identification circuit is electrically connected to the catheter, and send the sampled signal to the processor; the memory stores one or more catheter models and their corresponding electrical data. The processor is configured to match the sampled signal from the sampling circuit with electrical data pre-stored in the memory to determine the corresponding catheter model information; If the sampling circuit does not sample an electrical signal, the processor determines the usage period information corresponding to the unique identification code of the current conduit and the associated first connection time; if the usage period expires or the first connection time expires, the other of the first power module and the second power module is switched to a higher amplitude voltage or current, thereby blowing the fuse connected to the corresponding power module.
2. The high-voltage pulse generator according to claim 1, characterized in that, The identification circuit includes at least one positive power supply, at least one negative power supply, and a first interface electrically connected to the conduit. A resistor or capacitor is provided between the positive power supply and the first interface, and a resistor or capacitor is provided between the negative power supply and the first interface. The conduit configured to be electrically connected to the identification circuit contains an identification circuit, wherein the identification circuit includes a first diode, a second diode, and a second interface that can be plugged into and cooperate with the first interface, wherein the positive terminal of the first diode is connected to the second interface, and the negative terminal of the second diode is connected to the second interface; If a capacitor is provided between the positive power supply and the first interface, the negative terminal of the first diode is grounded through a resistor. If a capacitor is provided between the negative power supply and the first interface, the positive terminal of the second diode is grounded through a resistor. If a resistor is provided between the positive power supply and the first interface, the negative terminal of the first diode is grounded through a resistor, capacitor, or fuse. If a resistor is provided between the negative power supply and the first interface, the positive terminal of the second diode is grounded through a resistor, capacitor, or fuse.
3. The high-voltage pulse generator according to claim 2, characterized in that, The first interface has wiring that corresponds one-to-one with the positive power supply and the negative power supply, and the second interface has multiple corresponding wiring.
4. The high-voltage pulse generator according to claim 2, characterized in that, The first interface is the output control terminal of one or more multi-point control switches, and the positive power supply and negative power supply are respectively connected to different contacts of one of the multi-point control switches.
5. The high-voltage pulse generator according to claim 1, characterized in that, The identification circuit includes one or more power sources with the same polarity, a first interface electrically connected to the conduit, and a resistor or capacitor is provided between the power source and the first interface. The conduit configured to be electrically connected to the identification circuit contains an identification circuit, wherein the identification circuit includes a ground terminal and a second interface that can be plugged into the first interface. If a capacitor is provided between the power supply and the first interface, the second interface is grounded through a resistor; if a resistor is provided between the power supply and the first interface, the second interface is grounded through a resistor or a capacitor.
6. The high-voltage pulse generator according to claim 5, characterized in that, The first interface has wiring corresponding to the power supply, and the second interface has wiring corresponding to the first interface.
7. The high-voltage pulse generator according to claim 5, characterized in that, The first interface is the output control terminal of one or more multi-point control switches, and the power supply is connected to the contact of one of the multi-point control switches in a corresponding manner.
8. The high-voltage pulse generator according to claim 2 or 5, characterized in that, If the identified circuit has a capacitor, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; and in response to the sampling circuit sampling the voltage signal between the identified circuit and the conduit, the processor starts timing, and when the increase value of the voltage signal sampled by the sampling circuit is less than a preset voltage threshold, the processor stops timing and calculates the actual time required for capacitor charging. If the identification circuit is equipped with a capacitor, the electrical data pre-stored in the memory includes the time required for the capacitor to complete charging; and in response to the sampling circuit sampling the current signal between the identification circuit and the conduit, the processor starts timing, and when the amplitude of the current signal sampled by the sampling circuit decreases to less than a preset current threshold, the processor stops timing and calculates the actual time required for capacitor charging.
9. A catheter identification device, characterized in that, The catheter identification device is used to identify the model information of a catheter when it is electrically connected to the catheter to be identified. The catheter identification device includes a processor, a memory, a sampling circuit, and an identification circuit with a power supply. The identification circuit includes a first power module, a second power module, and a first multi-point control switch. The first power module is connected to a first contact of the first multi-point control switch via a first resistor, and the second power module is connected to a second contact of the first multi-point control switch via a second resistor. The first power module is configured to output a positive voltage, and the second power module is configured to output a negative voltage. The sampling circuit is connected to the control terminal of the first multi-point control switch. A conduit configured to be electrically connected to the identification circuit contains an identification circuit, which includes a first diode, a second diode, a ground terminal, and an input interface. The input interface is configured to be connected to the control terminal of the first multi-point control switch, and the anode of the first diode and the cathode of the second diode are both connected to the input interface. The cathode of the first diode is grounded via a fuse, and the anode of the second diode is grounded via a fuse. The first power supply module is an amplitude-adjustable positive power supply, and the second power supply module is an amplitude-adjustable negative power supply; or, the first power supply module includes a first positive power supply, a second positive power supply, and a second multi-point control switch, and the second power supply module includes a first negative power supply, a second negative power supply, and a third multi-point control switch, wherein the amplitude of the first positive power supply is lower than that of the second positive power supply, the amplitude of the first negative power supply is lower than that of the second negative power supply, and there are multiple first and second resistors. The first positive power supply is connected to a first contact of the second multi-point control switch through one of the first resistors, and the second positive power supply is connected to a second contact of the second multi-point control switch through another of the first resistors; the first negative power supply is connected to a first contact of the third multi-point control switch through one of the second resistors, and the second negative power supply is connected to a second contact of the third multi-point control switch through another of the second resistors; the control terminal of the second multi-point control switch is connected to the first contact of the first multi-point control switch, and the control terminal of the third multi-point control switch is connected to the second contact of the first multi-point control switch; The first power module and the second power module are turned on in a time-division manner by the first multi-point control switch. The first power module and the second power module output a low amplitude voltage or current respectively. The range of the low amplitude is limited to a range that is insufficient to blow the fuse. If the sampling circuit samples the electrical signal, one of the first power module and the second power module is switched to a higher amplitude voltage or current. The range of the higher amplitude is limited to a range that is sufficient to blow the fuse, thereby blowing the fuse corresponding to the power module. The processor associates the current time as the first connection time with the unique identification code of the currently connected conduit and stores the association information in the memory. It also determines the service life information corresponding to the unique identification code of the current conduit. The sampling circuit is configured to sample the electrical signal between the identification circuit and the catheter when the identification circuit is electrically connected to the catheter, and send the sampled signal to the processor. The memory stores one or more catheter models and their corresponding electrical data; The processor is configured to match the sampled signal from the sampling circuit with electrical data pre-stored in the memory to determine the corresponding catheter model information; If the sampling circuit does not sample an electrical signal, the processor determines the usage period information corresponding to the unique identification code of the current conduit and the associated first connection time; if the usage period expires or the first connection time expires, the other of the first power module and the second power module is switched to a higher amplitude voltage or current, thereby blowing the fuse connected to the corresponding power module.
10. A shock wave device, characterized in that, The device includes a conduit and a high-voltage pulse generator as described in any one of claims 1 to 8, wherein the conduit includes a tube body and a conduit handle, and the conduit handle contains an identification circuit that can be connected to the identification circuit.
Citation Information
Patent Citations
Consumable management system, consumable management method and vascular calcification treatment equipment
CN114010269A
Passive Catheter Identification And Self-Configuration System
US20160184025A1