Catheter type identification and state marking device and method

Abstract

The invention discloses a catheter type identification and state marking device and method, and the method comprises a type identification step and a state marking step, and the type identification step comprises the following steps: S1, enabling an equipment side interface to be in butt joint with a catheter side interface, and forming a loop; s2, the control module identifies the electrical characteristics of the conduit side interface to obtain a voltage code; s3, the control module analyzes the voltage code, identifies a marked channel and determines the state of the marked channel; and S4, the control module distinguishes catheter attributes according to the state of the marked channel. Whether the catheter is used or not can be marked, the effect that the catheter is reused after disposable use is avoided through an irreversible and permanent marking mode, and potential safety hazards are reduced; and the cost is greatly optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical catheters, and in particular to a catheter type identification and status marking device and method. Background Art

[0002] Intravascular shock wave therapy technology is a new and popular intravascular intervention method. In intravascular shock wave therapy technology, a catheter is an important device for converting high-voltage pulsed electrical energy into shock wave mechanical energy. Its treatment method is mainly to calcify plaques, causing them to undergo microcracks and fatigue damage, restoring vascular elasticity, and improving compliance.

[0003] Furthermore, the catheter is a disposable device, and there are safety hazards such as infection when reused. Also, due to the differences in blood vessel inner diameter and calcification length, there are various catheter types with similar appearances, making it difficult for medical staff to quickly identify them. Therefore, correct identification and management are crucial for equipment safety and operation efficiency. In addition, traditional management mostly relies on manual records and label markings, which are prone to problems such as identification errors and lagging status updates, and there is a risk of reuse. Existing technical means, such as the technology with the patent number CN113900971A, propose to use a resistor combination to identify the catheter, but there is a problem of being unable to mark the usage status of the catheter; or the technology with the patent number CN112083243A realizes type identification and status marking based on a readable and writable chip, but the circuit is complex and vulnerable to interference, and the chip has the characteristic that it can be repeatedly modified and rewritten, unable to achieve permanent marking, and may be exploited by lawbreakers to repeatedly use contaminated catheters, causing safety hazards.

[0004] Therefore, there is an urgent need for a device and method that can simultaneously achieve automatic identification of multiple catheter types and have a reliable and irreversible status marking ability to meet the needs of intelligent management.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The object of the present invention is to provide a catheter type identification and status marking device and method, which can solve the problems existing in the background art.

[0007] To achieve the above object, the present invention provides a method for catheter type identification and status marking, including type identification and status marking steps. The type identification step includes the following steps: S1: The device-side interface is docked with the catheter-side interface to form a loop; S2: The control module identifies the electrical characteristics of the catheter-side interface to obtain a voltage code; S3: The control module analyzes the voltage code, identifies the marking channel, and determines the status of the marking channel; S4: The control module differentiates the catheter attributes according to the status of the marking channel.

[0008] In one or more embodiments, the status marking step includes the following steps: AS1: The device-side interface is docked with the catheter-side interface to form a loop; AS2: The control module adjusts the function module to enter the marking mode; AS3: The control module executes the type identification step to identify the marking channel; AS4: The function module performs an irreversible marking on the marking channel; AS5: The control module identifies the status of the marking channel again, and performs subsequent operations according to the status of the marking channel.

[0009] In one or more embodiments, the catheter-side interface includes a plurality of characteristic channels, and the characteristic channels are arranged in parallel; the resistance characteristics of the characteristic channels are modulated so that significant differences in electrical characteristics can be exhibited after the loop is formed.

[0010] In one or more embodiments, S2 includes the following steps: S21: The control module identifies the electrical characteristics of the characteristic channels; S22: Matches the numbers of the characteristic channels with the voltages of the characteristic channels; S23: Generates a voltage code.

[0011] In one or more embodiments, S3 includes the following steps: S31: The control module extracts the voltage of the marking channel from the voltage code; S32: Compares the voltage of the marking channel with the operating voltage of the function module; S33: If the voltage of the marking channel is closer to the operating voltage of the function module, it is determined that the status of the marking channel is "marked"; S34: If the voltage of the marking channel is closer to 0V, it is determined that the status of the marking channel is "unmarked".

[0012] In one or more embodiments, S4 includes the following steps: S41: Reads the preset catheter type coding data; S42: The control module queries the catheter type coding data and determines the catheter type; S43: Combines the catheter type with the status of the marking channel to generate catheter attributes.

[0013] In one or more embodiments, S43 includes the following steps: S431: When the status of the marking channel is "marked", prompt the operator to dispose of the catheter as medical waste; S432: When the status of the marking channel is "unmarked", prompt the operator of the catheter type.

[0014] In one or more embodiments, AS4 includes the following steps: AS41: Record the electrical characteristics of the marking channel; AS42: The control module closes the loop of the marking channel for a unit of marking time.

[0015] In one or more embodiments, AS5 includes the following steps: AS51: After the marking time ends, the control module obtains the electrical characteristics of the marking channel; AS52: The control module compares the electrical characteristics of the marking channel in steps AS41 and AS51; AS53: When the electrical characteristics of the marking channel in step AS43 reach the fusing standard, determine that the status of the marking channel is "marked", and end step AS5; AS54: When the rated marking time is exceeded, determine that the status of the marking channel is "marking failed", and end step AS5; AS55: When the electrical characteristics of the marking channel in steps AS41 and AS51 are the same, return to step AS4.

[0016] In a second aspect, the present invention provides a catheter type identification and status marking device for implementing the catheter type identification and status marking method as described above, including: 1. The device body, which includes a control module, a function module, and a device-side interface; wherein, the control module is used to control the working mode of the function module; and has a voltage acquisition function, capable of obtaining electrical characteristics from the catheter-side interface; the working modes of the function module include: a type identification function for identifying catheter attributes; a status marking function for changing the status of the marking channel; 2. The catheter body, which includes a catheter-side interface; wherein, the catheter-side interface includes one or more feature channels, and the feature channels include at least one marking channel; the device-side interface includes one or more channels that match the positions, quantities, and interface characteristics of the feature channels.

[0017] Compared with the prior art, the multiple technical solutions and embodiments provided by the present invention at least include the following technical effects or advantages:

[0018] (1) High identification efficiency: Through the unique code composed of the combination of feature channels, quickly and accurately identify the catheter type, avoiding the inefficiency and errors of manual identification.

[0019] (2) Strong and irreversible marking reliability: Realize permanent use status marking by changing the electrical characteristics of the marking channel, avoiding the accidental or intentional reuse of single-use medical catheters, which may cause medical hazards.

[0020] (3) System intelligence: The control module and the function module automatically cooperate to complete the whole process of identification and marking, reduce manual operations, and improve management efficiency.

[0021] (4) Structural optimization: The feature module is simply designed, the electrical characteristics are significantly distinguishable, the equipment runs stably, and it adapts to different catheter management requirements. Description of the Drawings

[0022] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and can be considered as a schematic result of various combinations of preferred embodiments, and do not constitute an improper limitation to the present invention. In the drawings:

[0023] Figure 1 It is a schematic flowchart of a method for identifying catheter types and marking states provided by the present invention;

[0024] Figure 2 It is a schematic diagram of the function modules of a device for identifying catheter types and marking states provided by the present invention;

[0025] Figure 3 It is a schematic circuit diagram of a device for identifying catheter types and marking states provided by the present invention;

[0026] Figure 4 It is a schematic diagram of the electrical characteristics of the marking channel of a method for identifying catheter types and marking states provided by the present invention;

[0027] Figure 5 It is a schematic diagram of the electrical characteristics of the feature channel of a method for identifying catheter types and marking states provided by the present invention;

[0028] The reference numerals in the drawings respectively represent: 1 - equipment body, 11 - control module, 12 - function module, 121 - type identification, 122 - status marking, 13 - equipment - side interface, 2 - catheter body, 21 - feature module, 22 - catheter - side interface, Vp - working voltage. Detailed Embodiments

[0029] Unless otherwise clearly stated, throughout the specification and claims, the term "comprise" or its variations such as "comprises" or "including" or "made of..." etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0030] The purpose of the present invention is to provide a device and method for identifying catheter types 121 and marking states 122, achieving the effect of being able to mark whether a catheter has been used and avoiding the reuse of the catheter after one - time use in an irreversible manner, reducing potential safety hazards.

[0031] Example 1:

[0032] This embodiment provides a method for catheter type identification 121 and status marking 122, including steps of type identification 121 and status marking 122. The type identification 121 step includes the following steps:

[0033] S1: The device-side interface 13 docks with the catheter-side interface 22 to form a loop;

[0034] S2: The control module 11 identifies the electrical characteristics of the catheter-side interface 22 to obtain a voltage code;

[0035] S3: The control module 11 analyzes the voltage code, identifies the marking channel, and determines the status of the marking channel;

[0036] S4: The control module 11 differentiates the catheter attributes according to the status of the marking channel.

[0037] Specifically, this application realizes a readable code by using the electrical characteristics of the circuit. The catheter is provided with a relatively simple circuit structure. Compared with the prior art that uses a chip to read and store, this solution significantly saves costs, and the circuit structure is simple and expandable. By docking the device-side interface 13 with the catheter-side interface 22 to form a loop, the control module 11 can read the electrical characteristics (such as current and voltage) of the device-side interface 13. The electrical characteristics are preferably set as the code of the catheter model. The catheter-side interfaces 22 of the same catheter model have the same initial electrical characteristics, and the catheter-side interfaces 22 of different catheter models are set differently. Furthermore, the control module 11 can read the catheter model according to the electrical characteristics. Among them, the side interface of this solution includes a specially set marking channel. Before and after the catheter is used, through the status marking 122, the electrical characteristics of the marking channel change, and thus it can be distinguished whether the catheter has been used.

[0038] As a preferred implementation manner of this embodiment, the status marking 122 step includes the following steps:

[0039] AS1: The device-side interface 13 docks with the catheter-side interface 22 to form a loop;

[0040] AS2: The control module 11 adjusts the function module 12 to enter the marking mode;

[0041] AS3: The control module 11 executes the type identification 121 step to identify the marking channel;

[0042] [[ID=3�]]AS4: The function module 12 performs an irreversible marking on the marking channel;

[0043] AS5: The control module 11 identifies the status of the marked channel again and performs subsequent operations according to the status of the marked channel.

[0044] Specifically, to provide a solution for marking the usage status of the catheter and avoid malicious repeated use of the catheter, which may cause medical hazards, the control module 11 queries the marked channel in the catheter side interface 22 and performs an irreversible marking on the inside of the marked channel externally to eliminate the possibility of reusing the used catheter. Among them, the irreversible marking means performing a specific marking step, and this marking step causes the characteristics of the marked channel to change irreparably; preferably, through creative design, breaking the common circuit design idea based on protecting the circuit, in this embodiment, the irreversible marking is achieved by destroying the electrical characteristics of the circuit, and a permanent marking is realized by utilizing the asymmetry of physical-level destruction and repair, which has significant advantages.

[0045] As a preferred embodiment of this embodiment, the catheter side interface 22 includes multiple characteristic channels, and the characteristic channels are arranged in parallel; the resistance characteristics of the characteristic channels are modulated so that significant different electrical characteristics can be shown after a loop is formed.

[0046] Specifically, the characteristic channels in the catheter side interface 22 are arranged in parallel. The parallel structure can ensure that after the electrical characteristics of one of the marked channels change (such as open circuit, approximate short circuit), the other characteristic channels can still show electrical characteristics after being powered on.

[0047] As a preferred embodiment of this embodiment, S2 includes the following steps:

[0048] S21: The control module 11 identifies the electrical characteristics of the characteristic channel;

[0049] S22: Match the number of the characteristic channel with the voltage of the characteristic channel;

[0050] S23: Generate a voltage code.

[0051] Specifically, the functional module 12 provides voltage for the catheter side interface 22, which is called the working voltage Vp of the functional module 12; preferably, the resistances corresponding to the channels of the characteristic channel and the device side interface 13 are mutually voltage-divided. Since the multiple characteristic channels are arranged in parallel, the voltages at both ends of different parallel branches are equal, and the resistance characteristics of the characteristic channels are manifested, specifically as a certain voltage value within the range between 0V and the working voltage Vp.

[0052] Preferably, by changing the number system, more catheter model numbers can be adapted. When producing catheters, the voltage encodings for different models of catheters are coordinated to obtain an encoding comparison table, and the read voltage encoding is used to look up the corresponding catheter model in the encoding comparison table; the so-called change of number system means that the levels between 0V and the working voltage Vp are more finely divided to achieve an expansion of the upper limit of the number of encodings; specifically, for example, when the number of feature channels is 2 and the number of levels is 2, the high level represents the encoded digit 1, and the low level represents the encoded digit 0. Through the binary combination of 0 and 1 in 2 feature channels, 2-bit binary can be formed, with a total of four encodings: 00, 01, 10, and 11. When the number of catheter types is more than 4, increasing the number of feature channels can increase the total number of encodings; however, increasing the number of feature channels will also increase the cost. What is not easily thought of is to divide the levels into 3 types, namely high level, medium level, and low level, which is equivalent to changing binary to ternary, resulting in a total of 9 encodings: 00, 01, 02, 10, 11, 12, 20, 21, and 22. On the one hand, by changing the number system, at least two feature channels can be used to increase the number of encodings, maximizing cost savings; on the other hand, the combination of changing the number system and increasing the number of feature channels can achieve an exponential increase in the number of encodings, solving the problem of the number of encodings.

[0053] Catheter type Channel 1 Channel 2 Channel 3 Catheter type Channel 1 Channel 2 Channel 3 A 0 2 2 K 2 0 2 B 0 2 1 L 2 0 1 C 0 1 1 M 1 0 2 D 0 1 2 N 1 0 1 E 2 2 0 O 0 0 2 F 2 1 0 P 0 0 1 G 1 2 0 Q 0 2 0 H 1 1 0 R 0 1 0 I 2 0 0 S 0 0 0 J 1 0 0

[0054] Table 1 Schematic diagram of the number of encodings when setting three levels and the number of feature channels is 3

[0055] As a preferred implementation manner of this embodiment, S3 includes the following steps:

[0056] S31: The control module 11 extracts the voltage of the marked channel from the voltage encoding.

[0057] S32: Compare the voltage of the marked channel with the working voltage Vp of the function module 12.

[0058] S33: If the voltage of the marked channel is closer to the working voltage Vp of the function module 12, it is determined that the state of the marked channel is "marked".

[0059] S34: If the voltage of the marked channel is closer to 0V, it is determined that the state of the marked channel is "unmarked".

[0060] Specifically, as a preferred embodiment, the marking channel includes a fuse body structure that can be fused after passing a certain amount of current and maintaining it for a certain period of time, resulting in an irreversible and permanent change in electrical characteristics. Before marking, due to resistor voltage division, the voltage of the marking channel is much lower than the operating voltage Vp of the functional module 12. After marking, the fuse body is fused, the circuit is permanently cut off, and both sides of the fuse body are equivalent to capacitors, and their voltage is close to the operating voltage Vp. Therefore, the state of the marking channel can be identified by judging the voltage level.

[0061] As a preferred embodiment of this embodiment, S4 includes the following steps:

[0062] S41: Read the preset catheter type coding data;

[0063] S42: The control module 11 queries the catheter type coding data and determines the catheter type;

[0064] S43: Combine the catheter type and the state of the marking channel to generate catheter attributes.

[0065] Specifically, the catheter type refers to the model of the catheter, and the catheter attributes include the catheter type and the state of the marking channel, that is, it represents the model of the catheter and whether it has been used.

[0066] As a preferred embodiment of this embodiment, S43 includes the following steps:

[0067] S431: When the state of the marking channel is "marked", prompt the operator to dispose of the catheter as medical waste;

[0068] S432: When the state of the marking channel is "unmarked", prompt the operator of the catheter type.

[0069] As a preferred embodiment of this embodiment, AS4 includes the following steps:

[0070] AS41: Record the electrical characteristics of the marking channel;

[0071] AS42: The control module 11 closes the circuit of the marking channel and lasts for one unit of marking time.

[0072] As a preferred embodiment of this embodiment, AS5 includes the following steps:

[0073] AS51: After the marking time ends, the control module 11 acquires the electrical characteristics of the marking channel;

[0074] AS52: The control module 11 compares the electrical characteristics of the marking channel in steps AS41 and AS51;

[0075] AS53: When the electrical characteristics of the marked channel in step AS43 reach the fusing standard, determine that the status of the marked channel is "marked" and end step AS5.

[0076] AS54: When the rated marking time is exceeded, determine that the status of the marked channel is "marking failed" and end step AS5.

[0077] AS55: When the electrical characteristics of the marked channel in steps AS41 and AS51 are the same, return to step AS4.

[0078] Specifically, in the status marking 122 step, the fuse body of the marked channel is powered on for a preset marking time. The marking time is the fastest time expected for fusing. There are differences in the actual fusing time. Therefore, a detection is performed after one unit of marking time to check whether the marked channel is fused. If it is fused, the marking is successful; if not, repeat step AS4 and continue to apply current for one unit of marking time until it is fused; when the cumulative marking time reaches the maximum possible fusing time, i.e., the rated marking time, the marking fails.

[0079] Embodiment 2:

[0080] This embodiment provides a catheter type identification 121 and status marking 122 device. Based on the same concept, this embodiment is used to implement a catheter type identification 121 and status marking 122 method as described in Embodiment 1, including:

[0081] 1. Device body 1, the device body 1 includes a control module 11, a function module 12, and a device-side interface 13;

[0082] Among them, the control module 11 is used to control the working mode of the function module 12; and has a voltage acquisition function, and can obtain electrical characteristics from the catheter-side interface 22; the working modes of the function module 12 include: a type identification 121 function for identifying catheter attributes; a status marking 122 function for changing the status of the marked channel.

[0083] 2. Catheter body 2, the catheter body 2 includes a catheter-side interface 22;

[0084] Among them, the catheter-side interface 22 includes one or more characteristic channels, and the characteristic channels include at least one marked channel; the device-side interface 13 includes one or more channels that match the positions, quantities, and interface characteristics of the characteristic channels.

[0085] The foregoing description of specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the invention, as well as various different selections and modifications. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A method for catheter type identification and status marking, characterized in that, It includes a type recognition and status marking step, and the type recognition step includes the following steps: S1: The device-side interface docks with the catheter-side interface to form a loop; S2: The control module recognizes the electrical characteristics of the catheter-side interface to obtain a voltage code; S3: The control module analyzes the voltage code, recognizes the marking channel, and determines the status of the marking channel; S4: The control module distinguishes the catheter attributes according to the status of the marking channel.

2. The catheter type identification and status marking method according to claim 1, characterized in that, The status marking step includes the following steps: AS1: The device-side interface docks with the catheter-side interface to form a loop; AS2: The control module adjusts the function module to enter the marking mode; AS3: The control module executes the type recognition step to recognize the marking channel; AS4: The function module irreversibly marks the marking channel; AS5: The control module recognizes the status of the marking channel again and performs subsequent operations according to the status of the marking channel.

3. A method for catheter type identification and status marking according to claim 2, characterized in that, The catheter-side interface includes a plurality of characteristic channels, and the characteristic channels are arranged in parallel; the resistance characteristics of the characteristic channels are modulated so that significant different electrical characteristics can be exhibited after the loop is formed.

4. The method for catheter type identification and status marking according to claim 3, wherein The S2 includes the following steps: S21: The control module recognizes the electrical characteristics of the characteristic channel; S22: Match the number of the characteristic channel with the voltage of the characteristic channel; S23: Generate a voltage code.

5. A method for catheter type identification and status marking according to claim 4, characterized in that The S3 includes the following steps: S31: The control module extracts the voltage of the marking channel from the voltage code; S32: Compare the voltage of the marking channel with the working voltage of the function module; S33: If the voltage of the marking channel is closer to the working voltage of the function module, it is determined that the status of the marking channel is "marked"; S34: If the voltage of the marking channel is closer to 0V, it is determined that the status of the marking channel is "unmarked".

6. A method for catheter type identification and status marking according to claim 3, characterized in that, The S4 includes the following steps: S41: Read the preset catheter type coding data; S42: The control module queries the catheter type coding data and determines the catheter type; S43: Combine the catheter type and the status of the marking channel to generate catheter attributes.

7. A catheter type identification and status marking method according to claim 6, characterized in that The S43 includes the following steps: S431: When the status of the marking channel is "marked", prompt the operator to dispose of the catheter as medical waste; S432: When the status of the marking channel is "unmarked", prompt the operator of the catheter type.

8. The catheter type identification and status marking method according to claim 3, characterized in that, The AS4 includes the following steps: AS41: Record the electrical characteristics of the marking channel; AS42: The control module closes the loop of the marking channel and lasts for one unit of marking time.

9. A method for catheter type identification and status marking according to claim 3, characterized in that The AS5 includes the following steps: AS51: After the marking time ends, the control module obtains the electrical characteristics of the marking channel; AS52: The control module compares the electrical characteristics of the marking channel in steps AS41 and AS51; AS53: When the electrical characteristics of the marking channel in step AS43 reach the fusing standard, it is determined that the status of the marking channel is "marked", and step AS5 ends; AS54: When the rated marking time is exceeded, determine that the status of the marking channel is "marking failure", and end step AS5; AS55: When the electrical characteristics of the marking channel in steps AS41 and AS51 are the same, return to step AS4.

10. A catheter type identification and status marking device for implementing a catheter type identification and status marking method according to any one of claims 1-9, characterized in that, Including:

1. The device body, which includes a control module, a function module, and a device-side interface; Among them, the control module is used to control the working mode of the function module; and has a voltage acquisition function, capable of obtaining electrical characteristics from the catheter-side interface; the working modes of the function module include: a type recognition function for recognizing catheter attributes; a status marking function for changing the status of the marking channel; 2. The catheter body, which includes a catheter-side interface; Among them, the catheter-side interface includes one or more characteristic channels, and the characteristic channels include at least one marking channel; the device-side interface includes one or more channels that match the position, quantity, and interface characteristics of the characteristic channels.

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