Multifunctional intelligent radiography guide wire and control method thereof

Abstract

The invention relates to the technical field of medical equipment, and discloses a multifunctional intelligent radiography guide wire and a control method thereof.The multifunctional intelligent radiography guide wire comprises a guide wire body and an intervention guiding assembly, and the intervention guiding assembly comprises an intervention speed indicating part, a driving part and a control part which are connected in sequence. The intervention speed indicating part comprises a transparent tube and a one-way membrane arranged in the transparent tube, the one-way membrane divides the transparent tube into a first chamber and a second chamber, filler is stored in the first chamber, and the guide wire body penetrates through an opening of the one-way membrane; the driving part comprises an elastic body and a driving wheel set arranged in the elastic body, the guide wire body is arranged in the middle of the driving wheel set in a penetrating mode, and when control pressure is applied to the elastic body, the driving wheel set gets close to the middle and makes contact with the guide wire body; the control part is provided with a control panel and control keys, and the control panel is electrically connected with the driving wheel set and the control keys. According to the multifunctional intelligent radiography guide wire, medical risks caused by reduction of pushing stability due to hand fatigue of a doctor can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a multifunctional intelligent contrast guide wire and a control method thereof. BACKGROUND

[0002] In the field of interventional diagnosis and treatment, the contrast guide wire is a core tool for guiding the accurate arrival of instruments to the target lumen (such as blood vessels, bile ducts, ureters, etc.), and its operation safety and accuracy directly affect the operation effect.

[0003] The traditional contrast guide wire mainly relies on the doctor's hand feeling and experience for pushing or withdrawing, and in a long operation, the pushing stability may decrease due to the doctor's hand fatigue, resulting in high medical risk.

[0004] Although some contrast guide wires for assisting intervention have been developed in the industry, for example, Chinese patent application CN202310100542.5, the technical solution of the patent is that the doctor manually rotates the ring and adjusts to a position suitable for his own hand feeling, so that the doctor can better control the speed of the catheter entering the blood vessel of the human body, and avoid the blood vessel rupture caused by the too fast speed of the catheter in the blood vessel of the human body. However, this scheme still requires the doctor to operate for a long time, and cannot fundamentally solve the technical problem of pushing stability decrease caused by the doctor's hand fatigue. SUMMARY

[0005] The main purpose of the present application is to provide a multifunctional intelligent contrast guide wire and a control method thereof, which aims to solve the technical problem of medical risk caused by the pushing stability decrease due to the doctor's hand fatigue in the prior art.

[0006] To achieve the above-mentioned purpose, in the first aspect, the present application provides a multifunctional intelligent contrast guide wire, comprising a guide wire body and an interventional guide assembly, the interventional guide assembly comprising: an interventional speed indicating part, comprising a transparent tube and a one-way diaphragm arranged in the transparent tube, the one-way diaphragm divides the transparent tube into a first chamber and a second chamber, a filler is stored in the first chamber, and the guide wire body is arranged through the opening of the one-way diaphragm; a driving part, comprising an elastic body and a driving wheel set arranged in the elastic body, the guide wire body is arranged through the middle part of the driving wheel set, and when the elastic body is subjected to a control pressure, the driving wheel set is close to the middle and contacts the guide wire body; a control part, provided with a control panel and a control button, the control panel is electrically connected with the driving wheel set and the control button; When the guide wire body is in a sending state, the interventional speed indicating part is used to indicate whether the interventional speed of the guide wire is abnormal; when the guide wire body is in a withdrawing state, the interventional speed indicating part is used to generate frictional resistance to the guide wire to prevent the guide wire from being withdrawn too fast.

[0007] In a possible implementation, the opening of the one-way diaphragm is opened to allow the filler to enter the second chamber from the first chamber when the guide wire body is in a feeding state and the guide wire feeding speed is greater than or equal to a speed threshold.

[0008] In a possible implementation, the diameter of the interventional speed indicating part is 3 to 5 times the diameter of the guide wire body; and / or, The interventional speed indicating part is detachably connected with a driving part, and the driving part is fixedly connected with a control part.

[0009] In a possible implementation, the filler is a developing material; and / or, the filler is a barium-containing liquid material.

[0010] In a possible implementation, the driving part further comprises an upper limiting part and a lower limiting part, and the upper limiting part and the lower limiting part abut against each other to limit when the driving wheel set abuts against the guide wire body.

[0011] In a possible implementation, the driving wheel set comprises two driving wheels symmetrically arranged, and the driving wheels are provided with micro hub motors at the shaft centers.

[0012] In a possible implementation, the driving wheel set has a guide wire feeding rotation mode and a guide wire withdrawing rotation mode, the two driving wheels are in a first rotation state when the driving wheel set is in the guide wire feeding rotation mode, and the two driving wheels are in a second rotation state when the driving wheel set is in the guide wire withdrawing rotation mode, wherein the first rotation state is different from the second rotation state.

[0013] In a possible implementation, the driving part further comprises a pressure sensor arranged in the elastic body, and the pressure sensor is electrically connected with the control board.

[0014] In a second aspect, the application further provides a guide wire control method, which is applied to the multifunctional intelligent contrast guide wire as described above, and the method comprises the following steps: When it is necessary to feed the guide wire by using an auxiliary driving force for interventional operation, the elastic body of the driving part is pressed by a finger until a hard abutment is felt; A target rotation mode of the driving wheel set is selected by a control key, so that the driving wheel set is in a guide wire feeding rotation mode; During the guide wire feeding process, the diffusion state of the filler is observed, when the color in the second chamber gradually becomes deep, the finger is released to allow the elastic body to return to the original position and the guide wire feeding intervention is completed by using an artificial slow guide wire feeding mode; After the guide wire feeding intervention is completed, the interventional speed indicating part is pulled out of the driving part by using a medical instrument.

[0015] In a possible implementation, the method further comprises: In the case of needing to draw the wire by using auxiliary driving force, the intervention speed indicating part is connected with the driving part by using medical equipment; The elastic body of the driving part is pressed by fingers until the hard resistance is felt; The target rotating mode of the driving wheel set is selected by operating the key, so that the driving wheel set is in the wire drawing rotating mode until the wire drawing is completed.

[0016] Different from the prior art, the multifunctional intelligent contrast medium guide wire provided by the embodiment of the application includes a guide wire body and an intervention guide assembly, and the intervention guide assembly includes an intervention speed indicating part, a driving part and a control part which are connected in sequence. The intervention speed indicating part includes a transparent tube and a one-way diaphragm arranged in the transparent tube, the one-way diaphragm separates the transparent tube into a first chamber and a second chamber, the first chamber stores a filler, and the guide wire body is arranged in the opening of the one-way diaphragm. The driving part includes an elastic body and a driving wheel set arranged in the elastic body, the guide wire body is arranged in the middle part of the driving wheel set, and when the operating pressure is applied to the elastic body, the driving wheel set is close to the middle and contacts the guide wire body. The control part is provided with a control panel and an operating key, and the control panel is electrically connected with the driving wheel set and the operating key. When the auxiliary wire feeding needs to be started, the operating key is used to select the wire feeding mode of the driving wheel set. When the auxiliary wire drawing needs to be started, the operating key is used to select the wire drawing mode of the driving wheel set. When the guide wire body is in the feeding state, the intervention speed indicating part is used to indicate whether the guide wire intervention speed is abnormal. When the guide wire body is in the drawing state, the intervention speed indicating part is used to generate friction resistance on the guide wire to prevent the wire from being drawn too fast. The multifunctional intelligent contrast medium guide wire provided by the application can realize the wire feeding and wire drawing operations by providing auxiliary driving force, which can significantly reduce the medical risk caused by the decline of the pushing stability due to the fatigue of the doctor's hands. At the same time, the filler in the transparent tube can directly indicate whether the wire feeding speed is abnormal, which further improves the safety redundancy of the operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0018] Figure 1 It is a whole structure schematic diagram of the multifunctional intelligent contrast medium guide wire in some embodiments of the application. Figure 2 It is a structure schematic diagram of the driving part of the multifunctional intelligent contrast medium guide wire in some embodiments of the application. Figure 3State diagram of the multifunctional intelligent contrast guide wire in the state of pressing and sending the guide wire in some embodiments of the present application; Figure 4 State diagram of the multifunctional intelligent contrast guide wire in the state of pressing and withdrawing the guide wire in some embodiments of the present application; Figure 5 State diagram of the multifunctional intelligent contrast guide wire in some embodiments of the present application.

[0019] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0021] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0022] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" throughout the text includes three solutions, for example, A and / or B includes A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0023] In the field of interventional diagnosis and treatment, the contrast guide wire is a core tool for guiding the instrument to accurately reach the target lumen (such as blood vessels, bile ducts, ureters, etc.), and its operation safety and accuracy directly affect the operation effect.

[0024] The traditional contrast guide wire mainly relies on the doctor's sense of touch and experience to push or withdraw, and in a long time operation, the pushing stability may be reduced due to the fatigue of the doctor's hands, resulting in high medical risk.

[0025] In view of the above problems, such as Figure 1As shown, the present application proposes a multifunctional intelligent contrast guide wire, which comprises a guide wire body 100 and an interventional guide assembly 200. The guide wire body 100 is used for the precise arrival of interventional guide instruments to target cavities such as blood vessels, bile ducts, ureters, etc.; and the interventional guide assembly 200 is used for assisting the guide wire body 100 to intervene in target cavities such as blood vessels.

[0026] The interventional guide assembly 200 comprises an interventional speed indication part 210, a driving part 220 and a control part 230 connected in sequence.

[0027] The interventional speed indication part 210 comprises a transparent tube 211 and a one-way diaphragm 212 arranged in the transparent tube 211, the one-way diaphragm 212 separates the transparent tube 211 into a first chamber 2111 and a second chamber 2112, the first chamber 2111 stores a filler 213, and the guide wire body 100 is arranged in the opening of the one-way diaphragm 212; the driving part 220 comprises an elastic body 221 and a driving wheel set 222 arranged in the elastic body 221, and the guide wire body 100 is arranged in the middle part of the driving wheel set 222; when the elastic body 221 is subjected to a control pressure, the driving wheel set 222 is close to the middle and contacts the guide wire body 100; the control part 230 is provided with a control plate 231 and a control button 232, and the control plate 231 is electrically connected with the driving wheel set 222 and the control button 232.

[0028] In actual use, when the guide wire body 100 is in a sent-in state, the interventional speed indication part 210 is used to indicate whether the guide wire interventional speed is abnormal.

[0029] Specifically, the one-way diaphragm 212 in the transparent tube 211 is always kept in a closed state, and the space in the tube is separated into independent first chamber 2111 containing filler and second chamber 2112. When the guide wire is sent in at too high a speed and exceeds a preset threshold, the rapid movement of the guide wire body 100 will generate sufficient pushing force to drive the one-way diaphragm 212 to open, so that the communication port between the two chambers is completely opened or largely opened. At this time, the filler in the first chamber 2111 will flow into the second chamber 2112 through the communication port with the advancing action of the guide wire, and the doctor can directly observe the movement of the filler through the transparent tube, so as to intuitively judge that the guide wire is sent in at an excessively high speed. When the guide wire is sent in at a slow speed and does not exceed the preset threshold, the slow movement of the guide wire body 100 will not generate sufficient pushing force to open the one-way diaphragm 212, at this time, the communication port between the two chambers is completely closed or less opened, at this time, the filler in the first chamber 2111 will not enter the second chamber 2112 with the advancing action of the guide wire, or only a small amount of filler enters the second chamber 2112, at this time, it can be judged that the guide wire is sent in at a normal speed through the non-movement of the pigment.

[0030] In actual use, the intervention speed indicating part 210 is used to generate friction resistance to the guide wire to prevent the guide wire from being pulled out too fast when the guide wire body 100 is in the pulled-out state.

[0031] Specifically, the one-way membrane is designed as a one-way opening structure, which only allows the guide wire to be pushed open when the guide wire is inserted, and maintains a closing tendency when the guide wire is pulled out. When the guide wire is pulled out, the one-way membrane 212 closely adheres to the surface of the guide wire, forming a friction resistance. This resistance increases with the increase of the pulling speed, which provides a "buffer brake" effect for the guide wire, avoiding the sudden withdrawal of the guide wire due to too fast operation, thereby ensuring the safety of the operation.

[0032] In an embodiment, the diameter of the intervention speed indicating part 210 is 3 to 5 times the diameter of the guide wire body 100; and the intervention speed indicating part 210 and the driving part 220 are detachably connected, and the driving part 220 and the control part 230 are fixed as a whole. In this way, after completing the auxiliary driving of the guide wire, the driving part 220 and the control part 230 can be detached from the intervention speed indicating part 210 as a whole, and only the intervention speed indicating part 210 remains on the guide wire body 100. Due to the small diameter design of the intervention speed indicating part (only 3 to 5 times the diameter of the guide wire body 100), the speed indicating part 210 does not need to be detached to guide the instrument to accurately reach the target lumen. In addition, the intervention speed indicating part remains on the guide wire body 100, which can be used as a direct reference for whether the guide wire body 100 moves or not, which simplifies the operation process and ensures the accuracy and safety of the instrument delivery.

[0033] It should be noted that the filler 213 used in the present application can be two types of developing materials or non-developing materials. Among them, the developing material can be selected as a barium-containing liquid, and the non-developing material can be selected as a common pigment such as red pigment. If the developing material is used as the filler, during the operation, the doctor can clearly observe the flow state of the developing filler between the first chamber and the second chamber by means of X-ray imaging equipment. This feature enables accurate judgment of the intervention speed of the guide wire even in a complex in-vivo environment or limited visual field, providing a more reliable dynamic reference for the operation, and further improving the safety and accuracy of the operation.

[0034] To further improve the auxiliary driving effect of the driving part 220, the driving part 220 can be provided with a plurality of driving units 221, and the driving units 221 are arranged in a staggered manner. Figure 2As shown, the driving part 220 is also provided with an upper limiting part 223 and a lower limiting part 224. The working principle is as follows: when the elastic body 221 of the driving part is pressed, the driving wheel set 222 will move towards the middle and gradually contact the guide wire body 100. With the increase of the pressing force, the upper limiting part 223 and the lower limiting part 224 will gradually approach until they touch each other. At this time, the touching state of the two forms accurate limiting, which can ensure that the driving wheel set 222 and the guide wire body 100 reach the best touching state, so as to avoid the insufficient driving force caused by loose contact, affect the wire feeding or wire pulling effect, or increase the wear of the guide wire body or hinder its normal movement caused by tight contact, thereby stably guaranteeing the reliability and safety of auxiliary driving.

[0035] In an embodiment, the driving wheel set 222 adopts a symmetrical two-wheel structure, and a micro hub motor is arranged at the axis of each driving wheel. In this way, when the elastic body 221 is pressed to move the two driving wheels towards the middle, with the increase of the pressing force, the upper limiting part 223 and the lower limiting part 224 gradually approach and finally touch each other, at which time the two driving wheels form the best touching state with the guide wire body 100. Due to the independent driving characteristics of the micro hub motor, the two driving wheels can realize the first rotating state (wire feeding mode, the upper driving wheel rotates clockwise and the lower driving wheel rotates counterclockwise) or the second rotating state (wire pulling mode, the upper driving wheel rotates counterclockwise and the lower driving wheel rotates clockwise) according to the instruction of the control part 230, thereby providing stable and controllable driving force for the guide wire body 100. At the same time, since the upper and lower limiting parts have been mechanically limited to ensure that the driving wheel and the guide wire have moderate contact force, it can avoid the problem of slipping caused by loose contact and ensure efficient transmission of driving force, and it can also prevent the guide wire from being worn or the motor from being overloaded caused by tight contact, thereby significantly improving the response accuracy and operation stability of auxiliary driving. In addition, the symmetrical two-wheel driving design can also reduce the risk of deviation of the guide wire during force transmission, further guaranteeing the linearity and accuracy of wire feeding and wire pulling operation, and providing strong support for fine control during the operation process.

[0036] In other embodiments, as shown in Figure 3 and Figure 4 the driving part 220 is also provided with a pressure sensor 225, and the pressure sensor 225 is installed inside the elastic body 221 and electrically connected with the control board 231 of the control part 230. The pressure sensor 225 can realize accurate monitoring and intelligent control of the contact state of the driving wheel set 222 and the guide wire body 100. Specifically, when the physician presses the elastomer 221, the pressure sensor 225 will capture the change in pressing force in real time and convert it into an electrical signal transmitted to the control board 231. The control board can determine the contact state of the driving wheel and the guide wire according to the preset pressure threshold value: if the pressure value is below the threshold value, it means that the two are in contact too loosely, which may pose a risk of slipping, at which time the control board can remind the physician to increase the pressing force through a prompt sound, an indicator light, or the like; if the pressure value exceeds the threshold value, it means that the contact is too tight, which may cause the guide wire to wear or the motor to overload, and the control board will also issue a warning to avoid excessive pressing. In addition, the feedback data of the pressure sensor can also be linked with the motor control of the driving wheel group. When it is detected that the pressure is in the optimal range, the control board can automatically optimize the motor output power to ensure that the driving force matches the contact state, further improving the stability and safety of the auxiliary driving. This intelligent pressure monitoring mechanism not only compensates for the passivity of the upper and lower limit parts of the simple mechanical limit, but also provides a quantitative reference for the physician's operation, making the operation of the driving part more in line with the actual surgical needs.

[0037] Based on this, the multifunctional intelligent contrast guide wire provided by the embodiments of the present application includes a guide wire body and an interventional guide assembly, and the interventional guide assembly includes an interventional speed indication part, a driving part, and a control part connected in sequence. The interventional speed indication part includes a transparent tube and a one-way diaphragm arranged in the transparent tube, the one-way diaphragm separates the transparent tube into a first chamber and a second chamber, and the first chamber stores a filler, and the guide wire body is arranged in the opening of the one-way diaphragm; the driving part includes an elastomer and a driving wheel group arranged in the elastomer, and the guide wire body is arranged in the middle part of the driving wheel group, and when a control pressure is applied to the elastomer, the driving wheel group moves towards the middle and contacts the guide wire body; the control part is provided with a control board and a control button, and the control board is electrically connected with the driving wheel group and the control button. When it is necessary to start the auxiliary wire feeding, the driving wheel group is selected to be in the wire feeding mode through the control button; when it is necessary to start the auxiliary wire pulling, the driving wheel group is selected to be in the wire pulling mode through the control button, and when the guide wire body is in the feeding state, the interventional speed indication part is used to indicate whether the interventional speed of the guide wire is abnormal; when the guide wire body is in the pulling-out state, the interventional speed indication part is used to generate a frictional resistance to the guide wire to prevent the wire from being pulled out too fast. The multifunctional intelligent contrast guide wire provided by the present application can realize the wire feeding and wire pulling operations by providing an auxiliary driving force, which can significantly reduce the medical risks caused by the decline in pushing stability due to the fatigue of the physician's hands; at the same time, the filler in the transparent tube can directly indicate whether the wire feeding speed is abnormal, further improving the safety redundancy of the operation.

[0038] To achieve the same purpose of the invention, as shown in Figure 3 and Figure 5 the embodiments of the present application also provide a guide wire control method, which includes the following steps: S100, when the auxiliary driving force is needed to send the wire intervention, the elastic body of the finger pressing driving part is pressed until the hard resistance is felt; Specifically, when the auxiliary driving force is needed to send the wire intervention, the elastic body of the driving part is pressed by the doctor's finger. This operation will cause the driving wheel set to move closer to the middle and gradually contact the guide wire body. As the pressing force increases, the upper and lower limit pieces gradually approach each other until they touch each other, at which time the doctor will feel a clear "hard resistance" feedback, which indicates that the driving wheel set and the guide wire body have reached the best resistance state, neither too loose to cause slipping nor too tight to cause wear, providing a stable basis for subsequent auxiliary driving.

[0039] S200, the target rotation mode of the driving wheel set is selected by operating the key to make the driving wheel set in the wire sending rotation mode; Specifically, the target rotation mode of the driving wheel set is set to the wire sending mode by the control key of the control part. At this time, the micro-hub motor of the driving wheel set starts and rotates in the first rotation state (wire sending mode, upper driving wheel rotates clockwise and lower driving wheel rotates counterclockwise), providing forward driving force for the guide wire body, achieving auxiliary wire sending, reducing the burden of the doctor's hand pushing, and avoiding the influence of fatigue on the stability of wire sending.

[0040] S300, during the wire sending process, the diffusion state of the filler is observed, and when the color in the second chamber gradually deepens, the finger is released to make the elastic body return to its original position and complete the wire intervention in the way of artificial slow wire sending; Specifically, during the auxiliary wire sending process, the filler state in the intervention speed indicating part is closely observed. When the color in the second chamber gradually deepens, it means that the guide wire sending speed is too fast to exceed the threshold value, the one-way diaphragm is driven to open, and the filler in the first chamber flows into the second chamber. At this time, the doctor should release the finger pressing the elastic body, and after the elastic body returns to its original position, the driving wheel set and the guide wire body are separated, the auxiliary driving stops, and at this time the artificial slow wire sending is switched to ensure that the guide wire accurately and safely reaches the target position.

[0041] S400, after the wire intervention is completed, the intervention speed indicating part is pulled out of the driving part by using a medical instrument.

[0042] Specifically, after the wire intervention is completed, the intervention speed indicating part is pulled out of the driving part by using a medical instrument such as a medical forceps. At this time, the intervention speed indicating part can be retained on the guide wire body, which not only serves as a guide mark for subsequent instruments to help accurately reach the target lumen, but also serves as a reference for whether the guide wire is moving, simplifying the subsequent operation process.

[0043] Thus, the whole operation method of the present application cooperates with the mechanical structure and the manual operation, which not only has the high efficiency of the auxiliary driving, but also realizes the timely regulation of the abnormal speed by the state feedback of the filler, and takes into account the operation convenience and the surgical safety.

[0044] In an embodiment, as shown in Figure 4 The guide wire operation method further includes the following steps: S500, when the auxiliary driving force is needed to draw the wire, the intervention speed indicating part is connected with the driving part by using the medical instrument; Specifically, when the auxiliary driving force is needed to draw the wire, the previously detached intervention speed indicating part is reconnected with the driving part by using the medical instrument (such as a medical forceps). This operation ensures that the intervention speed indicating part can play a role in the wire drawing process, and by virtue of the characteristics of the internal one-way diaphragm, provides a moderate frictional resistance for the guide wire drawing, prevents the wire from being drawn too fast, and also provides stable structural support for the auxiliary wire drawing action of the driving part.

[0045] S600, the elastic body of the driving part is pressed by the finger until the hard resistance is felt; Specifically, this step is similar to the wire feeding operation, the doctor presses the elastic body of the driving part with the finger, so that the driving wheel set moves towards the middle and contacts the guide wire body. As the pressing force increases, the upper and lower limit parts resist each other, and the doctor feels the “hard resistance” feedback. At this time, the driving wheel set and the guide wire body are in the best contact state, which can not only ensure the effective transmission of the driving force during the wire drawing, but also avoid damaging the guide wire or increasing the motor load due to too tight contact, and lay a foundation for stable auxiliary wire drawing.

[0046] S700, the target rotation mode of the driving wheel set is selected by the operation key to make the driving wheel set in the wire drawing rotation mode until the wire drawing is completed.

[0047] The target rotation mode of the driving wheel set is switched to the wire drawing mode by the operation key of the control part. At this time, the micro hub motor of the driving wheel set starts and rotates in the second rotation state (wire drawing mode, the upper driving wheel rotates counterclockwise and the lower driving wheel rotates clockwise), which provides a backward driving force for the guide wire body and realizes the auxiliary wire drawing. In this process, the one-way diaphragm of the intervention speed indicating part will closely adhere to the surface of the guide wire, forming a frictional resistance that increases with the increase of the wire drawing speed, which balances the driving force of the driving wheel set and further prevents the wire from being drawn too fast. Until the wire drawing operation is completed, the motor can be stopped and the pressing on the elastic body can be released.

[0048] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation within the concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A multifunctional intelligent angiography guidewire, characterized in that: It comprises a guide wire body (100) and an interventional guide assembly (200), wherein the interventional guide assembly (200) comprises: The intervention speed indicator (210) comprises a transparent tube (211) and a one-way membrane (212) disposed in the transparent tube (211), wherein the one-way membrane (212) separates the transparent tube (211) into a first chamber (2111) and a second chamber (2112), wherein a filler (213) is stored in the first chamber (2111), and the guide wire body (100) is passed through an opening of the one-way membrane (212); The driving portion (220) comprises an elastic body (221) and a driving wheel group (222) disposed in the elastic body (221), wherein the guide wire body (100) is disposed through the middle of the driving wheel group (222), and when a control pressure is applied to the elastic body (221), the driving wheel group (222) moves toward the middle and contacts the guide wire body (100); The control unit (230) is provided with a control panel (231) and a control button (232), wherein the control panel (231) is electrically connected to the driving wheel set (222) and the control button (232); Wherein, when the guide wire body (100) is in the insertion state, the intervention speed indicator (210) is used to indicate whether the guide wire intervention speed is abnormal; when the guide wire body (100) is in the withdrawal state, the intervention speed indicator (210) is used to generate friction resistance to the guide wire to prevent the wire from being withdrawn too quickly.

2. The multifunctional intelligent angiography guidewire according to claim 1, characterized in that: When the guide wire body (100) is in a feeding state and the wire feeding speed is greater than or equal to a speed threshold, the opening of the one-way diaphragm (212) opens to allow the filler (213) to enter the second chamber (2112) from the first chamber (2111).

3. The multifunctional intelligent angiography guidewire according to claim 1, characterized in that: The diameter of the intervention speed indicator (210) is 3 to 5 times the diameter of the guide wire body (100); and / or, The intervention speed indicating unit (210) is detachably connected to the driving unit (220), and the driving unit (220) is fixedly connected to the control unit (230).

4. The multifunctional intelligent angiography guidewire according to claim 1, characterized in that: The filler (213) is a developing material; and / or the filler (213) is a barium-containing liquid material.

5. The multifunctional intelligent angiography guidewire according to claim 1, characterized in that: The driving portion (220) further comprises an upper limit member (223) and a lower limit member (224). When the driving wheel assembly (222) contacts the guide wire body (100), the upper limit member (223) and the lower limit member (224) contact each other to limit the position.

6. The multifunctional intelligent angiography guidewire according to claim 1, characterized in that: The driving wheel set (222) comprises two symmetrically arranged driving wheels, and a micro hub motor is provided on the axis of the driving wheel.

7. The multifunctional intelligent angiography guidewire according to claim 6, characterized in that: The driving wheel assembly (222) has a wire feeding rotation mode and a wire drawing rotation mode. When the driving wheel assembly (222) is in the wire feeding rotation mode, the two driving wheels are in a first rotation state. When the driving wheel set (222) is in the spinning rotation mode, the two driving wheels are in a second rotation state, wherein the first rotation state is different from the second rotation state.

8. The multifunctional intelligent angiography guidewire according to claim 1, characterized in that: The driving unit (220) further includes a pressure sensor (225) disposed in the elastic body (221), and the pressure sensor (225) is electrically connected to the control board (231).

9. A guidewire manipulation method, applied to the multifunctional intelligent angiography guidewire according to any one of claims 1 to 8, characterized in that: The method comprises: When auxiliary driving force is needed to intervene in wire feeding, press the elastic body of the driving part with your fingers until you feel a hard resistance; Select the target rotation mode of the driving wheel assembly by operating the button so that the driving wheel assembly is in the wire feeding rotation mode; During the wire feeding process, observe the diffusion state of the filler. When the color in the second chamber gradually darkens, release your fingers to allow the elastomer to return to its original position and manually feed the wire slowly to complete the wire feeding intervention. After the wire feeding intervention is completed, the intervention speed indicator is pulled out from the driving part using a medical instrument.

10. The guidewire manipulation method according to claim 9, wherein: The method further comprises: When auxiliary driving force is required for wire drawing, the intervention speed indicator is connected to the driving part using a medical device; Use your fingers to press the elastic body of the driving part until you feel a hard resistance; The target rotation mode of the driving wheel assembly is selected by operating the button so that the driving wheel assembly is in the spinning rotation mode until the spinning is completed.

Images