Visual flushing attraction device

Abstract

The application relates to a visual flushing and suction device, which comprises a handle, a straight pipe connected with the handle, an axial guide channel arranged in the straight pipe, a visual camera module arranged at the front end of the straight pipe, a flushing and suction pipeline arranged in the axial guide channel, the front end of the flushing and suction pipeline being capable of extending out of the front end of the straight pipe along the axial guide channel or being capable of retracting into the straight pipe, and a telescopic control mechanism arranged on the handle and comprising a holding movable piece connected with the flushing and suction pipeline and a reset piece. When external force is applied on the holding movable piece, the holding movable piece drives the flushing and suction pipeline to extend out of the front end of the straight pipe against the reset force of the reset piece. When the external force is removed, the reset piece releases the reset force to drive the flushing and suction pipeline to retract into the straight pipe. Thus, the problems that the flushing and suction device is not compatible with water medium and air medium, the cost is high, the suction pipe cannot be telescopically adjusted, the operation needs to be assisted by multiple hands, the operation field is easily shielded, and the like are solved, and the convenience and efficiency of flushing, suction and visualization during operation are improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a visual suction device. Background Technology

[0002] Irrigation and suction devices are commonly used surgical instruments in clinical surgery and are widely used in various surgical procedures. However, in routine surgical procedures, the irrigation and suction devices used by clinicians generally lack real-time camera functionality. Once the device is inserted into the tissue, the surgeon cannot observe the real-time tissue condition at the operating end, operating in a blind spot. This not only increases the difficulty of the surgical procedure but also increases the risk of accidental trauma to the patient's tissues.

[0003] Currently, integrated devices that combine cameras with irrigation and suction devices exist, featuring image display capabilities that allow doctors to observe the field of view on a monitor while performing the procedure. However, such integrated devices still have several shortcomings. Firstly, endoscopic systems operate in two environments: water-based and air-based. Water-based endoscopes (such as spinal endoscopes and arthroscopes) require continuous irrigation to maintain a clear field of view, while air-based endoscopes (such as neuroendoscopes and ENT endoscopes) rely on intermittent irrigation in a vaporized environment to clean the lens. The irrigation requirements for these two modes are diametrically opposed, requiring medical units to equip themselves with different endoscopic instruments for each surgical mode, resulting in high procurement costs and poor convenience.

[0004] Secondly, when operating with an air medium, blood, tissue debris, and irrigation fluid in the surgical area need to be promptly aspirated and removed. However, aspiration in these techniques often relies on assistants or the surgeon holding the endoscope in one hand and the aspirator in the other, making the operation difficult and increasing the risk of error. Although some attempts have been made to integrate the endoscope with the aspirator, the aspiration tube is mostly fixed, making it impossible to flexibly adjust its extension length according to the intraoperative field of vision. This easily leads to problems such as the aspiration tube obstructing the lens's field of vision or insufficient aspiration distance.

[0005] Thirdly, in the related technologies, the integrated camera in the rinsing and suction device is usually located on the same plane as the camera and the rinsing and suction tube. When rinsing and suctioning, the end face needs to be close to the tissue, which can easily lead to the imaging distance being too close and affect the clarity of the acquired image.

[0006] Therefore, there is an urgent need for a visual flushing and suction device that is compatible with different surgical media, easy to operate, and avoids obstruction of the field of vision by the suction tube. Summary of the Invention

[0007] This application provides a visual flushing and suction device to solve the problems of high cost due to incompatibility between water and air media in flushing and suction instruments, the inability of the suction tube to extend and adjust, the need for multiple hands to assist in operation, and the easy obstruction of the surgical field.

[0008] The first aspect of this application provides a visual suction device, comprising: handle; A straight tube, connected to the handle, has an axial guide channel inside; A visual camera module is disposed at the front end of the straight tube; The flushing and suction pipe is installed in the axial guide channel, and the front end of the flushing and suction pipe can extend out of the front end of the straight tube or retract into the straight tube along the axial guide channel; A telescopic control mechanism is provided on the handle, and the telescopic control mechanism includes a gripping movable part and a reset part that are linked to the flushing and suction pipe; When an external force is applied to the gripping component, the gripping component drives the suction pipe to extend outward to the front end of the straight tube against the resetting force of the resetting component; when the external force is removed, the resetting component releases the resetting force and drives the suction pipe to retract into the straight tube.

[0009] Optionally, in some embodiments, the handle is provided with a flushing control component, which is used to control the flushing and suction pipeline to switch between intermittent flushing mode and continuous flushing mode.

[0010] Optionally, in some embodiments, the flushing control component includes a push-button switch and a continuous flushing valve disposed on the handle, and the flushing and suction pipe is provided with a flushing flow path inside; In the intermittent flushing mode, the push-button switch is used to open or close the flushing flow path; In the continuous flushing mode, the continuous flushing valve keeps the flushing flow path in a normally open state.

[0011] Optionally, in some embodiments, the gripping mechanism is a gripping trigger, and the resetting mechanism is a resetting spring; The grip trigger is connected to the suction pipe via a linkage mechanism; The return spring abuts between the grip trigger and the handle, providing an elastic force to retract the suction line into the straight tube.

[0012] Optionally, in some embodiments, the axial guide channel includes independent flushing and suction pipe channels and signal line channels; The flushing and suction pipe is installed inside the flushing and suction pipe channel; The visual camera module is connected to a signal line that runs through the signal line channel.

[0013] Optionally, in some embodiments, the tail end of the flushing and suction line is connected to a Y-shaped diverter provided in the handle, the Y-shaped diverter being provided with a suction port and a flushing port; The suction port is used to connect to an external negative pressure suction source, and the rinsing port is used to connect to an external rinsing source.

[0014] Optionally, in some embodiments, the portion of the flushing and suction pipe extending beyond the front end of the straight pipe is a flexible pipe body; The visual camera module includes a camera and LED (Light Emitting Diode) lights, with the LED lights distributed on both sides of the camera.

[0015] Optionally, in some embodiments, the front end of the visual camera module is fitted with a transparent waterproof sealing cover.

[0016] Optionally, in some embodiments, a fixed included angle between the optical axis of the visual camera module and the axis of the straight tube is provided in the range of 0° to 70°; The handle and the straight tube are integrally molded medical plastic structures.

[0017] A second aspect of this application provides a driving method for a visual suction device, wherein the visual suction device is the visual suction device described in any of the above embodiments, and the visual suction device includes a gripping movable member, a suction pipe, a reset member, an axial guide channel, and a straight tube. The driving method includes the following steps: Step S1: Apply an external force to the gripping movable part, and drive the suction pipe through the gripping movable part to overcome the reset force of the reset part and extend it outward from the front end of the straight tube along the axial guide channel; Step S2: Remove the external force applied to the gripping movable part, release the reset force through the reset part, and drive the flushing and suction pipeline to retract into the straight tube along the axial guide channel.

[0018] Therefore, this application integrates a telescopic control mechanism and a flushing control component on the handle of the device. Through the coordinated operation of the push-button switch and the continuous flushing valve in the flushing control component, the device can be compatible with two different endoscopic operating environments: water and air media. It can flexibly switch between intermittent and continuous flushing, effectively reducing the equipment procurement and maintenance costs of medical institutions. Through the telescopic control mechanism composed of the gripping movable part (grip trigger) and the return spring, the operator only needs to apply force with one hand to control the forward extension and automatic retraction of the flushing and suction tube, effectively avoiding the problem of fixed suction tubes obstructing the lens view, making the surgical operation more precise and convenient. At the same time, the independent dual channels and the front waterproof sealing cover ensure the safety of signal transmission and the clarity of deep cavity imaging in the water media environment, which has good clinical application value.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a visual suction device according to an embodiment of this application; Figure 2 This is a schematic diagram of the internal flow path according to a specific embodiment of this application; Figure 3 This is a schematic diagram of the front end cross-section of a straight tube according to a specific embodiment of this application; Figure 4 This is a flowchart of a driving method for a visual suction device according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures: 1-Straight tube; 11-Suction / flushing pipe; 121-Camera; 122-LED lighting; 123-Signal cable channel; 13-Transparent waterproof sealing cover; 2-Handle; 3-Trigger grip; 4-Push-button switch; 5-Continuous flushing valve; 6-Suction interface; 7-Flushing interface; 81-First Y-type diverter; 82-Second Y-type diverter; 83-Third Y-type diverter; 91-Negative pressure valve; 92-Negative pressure regulating component. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0023] The following description, with reference to the accompanying drawings, illustrates a visual flushing and suction device according to an embodiment of this application. Addressing the problems mentioned in the background art, such as high cost due to incompatibility between water and air media in flushing and suction instruments, the inability to extend or adjust the suction tube leading to multi-handed operation, and the potential obstruction of the surgical field, this application first provides a visual flushing and suction device, such as… Figure 1 As shown, the visual suction device includes: a handle 2, a straight tube 1, a visual camera module, and a suction pipe 11.

[0024] The handle 2 has a gun-like structure, making it easy for the operator to hold with one hand. The straight tube 1 is fixedly connected to the front end of the handle 2 and is used to insert into the internal tissue cavities of the human body. The visual camera module is located at the front end of the straight tube 1 and is used to acquire real-time images inside the cavity. The images are led out through the inside of the straight tube 1 via a signal cable to the tail end of the handle 2, and finally connected to an external image processing and display device.

[0025] like Figure 1 and Figure 2 As shown, the handle 2 is equipped with a telescopic control mechanism for controlling the extension and retraction of the suction / flush tube 11. This telescopic control mechanism includes a grip trigger 3 and a return spring. The grip trigger 3 is located at the front grip position of the handle 2, and the return spring is located inside the handle 2. The grip trigger 3 is connected to the suction / flush tube 11, which passes through the straight tube 1, via a linkage mechanism. The two ends of the return spring abut against the grip trigger 3 and the housing of the handle 2, respectively.

[0026] In actual operation, when the operator grips handle 2 and squeezes trigger 3, an external force is applied to trigger 3. This external force is converted into an axial thrust or pull force through the linkage mechanism, overcoming the elastic force of the return spring and driving the suction / purge pipe 11 to extend outward from the front end of the straight tube 1 along the axial guide channel inside the straight tube 1, so that its front end can reach the position where suction or rinsing is required. When the operator releases trigger 3, the external force applied to trigger 3 is removed, the return spring releases the elastic return force accumulated when it is compressed or stretched, and drives the linkage mechanism and suction / purge pipe 11 to retract into the straight tube 1, preventing the suction / purge pipe 11 from obstructing the field of view of the visual camera module when not in operation.

[0027] Specifically, the linkage mechanism in this embodiment can be a push-pull linkage hinged between the grip trigger 3 and the tail end of the suction pipe 11, or a linkage slider structure with a guide block with a sliding groove. Through the swinging or sliding engagement of this linkage mechanism, the operator's pinching action on the grip trigger 3 is smoothly converted into linear movement of the suction pipe 11 along the axial direction of the straight tube 1.

[0028] Furthermore, to accommodate the irrigation needs of two different surgical environments—water-based (e.g., spinal endoscopes, arthroscopy) and air-based (e.g., neuroendoscopy, ENT endoscopes)—the handle 2 is equipped with a irrigation control component. This component controls the switching of the irrigation and suction line 11 between intermittent and continuous irrigation modes.

[0029] like Figure 1 and Figure 2 As shown, the flushing control assembly specifically includes a push-button switch 4 and a continuous flushing valve 5 mounted on the handle 2. The flushing and suction pipe 11 has a flushing flow path inside.

[0030] When the surgery is performed in an aqueous environment, switch the mode to continuous flushing mode. At this time, open the continuous flushing valve 5, and the external flushing fluid source continuously enters the operating cavity through the flushing and suction pipe 11, so that the cavity is in a continuous state of full circulation and maintains a clear field of vision.

[0031] When the surgery is performed in an air-medium environment, switch the mode to intermittent flushing mode. At this time, the operator can press the push-button switch 4 on the handle 2 according to the actual clarity of the field of vision. The push-button switch 4 is configured as a push-to-open reset switch. Pressing it opens the flushing flow path and completes a quantitative release of flushing fluid to clean the lens field of vision; releasing it automatically resets and cuts off the flushing flow path, stopping the flushing.

[0032] In the pipeline connection topology, such as Figure 2 As shown, the end of the flushing / suction pipe 11 is connected to a first Y-type diverter 81 located inside the handle 2. The first Y-type diverter 81 divides the pipe into a suction branch and a flushing branch.

[0033] The suction branch (suction interface 6) passes sequentially through the negative pressure valve 91 and the negative pressure regulating component 92, ultimately forming the suction interface 6 for connecting an external negative pressure suction source. The operator can control the start and stop of the negative pressure by switching the negative pressure valve 91, and can control the suction intensity in real time by adjusting the negative pressure regulating component 92 (such as a side hole or knob).

[0034] The flushing branch (flushing interface 7) is connected to the second Y-type diverter 82, which divides the flushing flow into an intermittent flushing branch and a continuous flushing branch. After passing through the push-button switch 4 and the continuous flushing valve 5 respectively, they rejoin through the third Y-type diverter 83, ultimately forming the flushing interface 7 at the end for connecting to an external flushing source. After the external flushing fluid enters the flushing interface 7, it is diverted by the third Y-type diverter 83 to supply the intermittent flushing branch and the continuous flushing branch.

[0035] Furthermore, the straight tube 1 in this embodiment of the application is provided with an axial guide channel inside. This axial guide channel itself adopts an independent spatial structure design, divided into a flushing and suction pipe channel and a signal line channel 123. The flushing and suction pipe 11 passes through the flushing and suction pipe channel, and the signal line passes through the signal line channel 123. The flushing and suction pipe channel and the signal line channel 123 are physically isolated by a partition inside the straight tube 1 to prevent pressure fluctuations or leakage caused by the flushing fluid flowing in the pipe from interfering with the image signal transmission of the signal line.

[0036] like Figure 3 As shown, the front end cross-section of the straight tube 1 contains a visual camera module, which mainly includes a camera 121 and an LED light 122. The LED lights 122 are distributed on both sides of the camera 121, providing a clear illumination source for the deep cavity.

[0037] The portion of the suction and irrigation tubing 11 extending beyond the front end of the straight tube 1 is a flexible tube body. This flexible tube body is made of medical-grade TPU (Polyurethane) or silicone. When the suction and irrigation tubing 11 extends to the tissue surface, its flexibility effectively avoids mechanical scratches or compression damage to the tissue caused by the rigid tube body.

[0038] In addition, a transparent waterproof sealing cover 13 is fitted onto the front end of the visual camera module. The transparent waterproof sealing cover 13 is injection molded from medical-grade PC (Polycarbonate) or medical-grade transparent silicone. The edges of the transparent waterproof sealing cover 13 are fixed to the base of the camera module by potting compound or ultrasonic welding process, completely isolating the internal electronic components of the camera 121 and LED lighting 122 from the external rinsing fluid, so as to ensure electrical safety and clear imaging under water-medium operation.

[0039] Furthermore, the visual suction device of this application embodiment can be designed with various diameters and lengths to meet the clinical needs of different surgical departments (such as neurosurgery, spinal surgery, otolaryngology, urology, etc.). In this embodiment, the optical axis of the visual camera module and the axis of the straight tube 1 can be provided with an angle ranging from 0° to 70°, which can adapt to straight tubes or oblique tubes with different viewing angles. It should be noted that the size of the angle can be set according to the usage scenario of the device, and is not specifically limited here.

[0040] In addition, the handle 2 and the straight tube 1 are integrally molded medical plastic structures. Specifically, they can be integrally injection molded using medical-grade injection molding materials such as PPSU (Polyphenylene sulfone resins) or PC. The structure is stable, which not only meets the biocompatibility requirements of medical devices, but also has a low manufacturing cost, and can adapt to both single-use and multiple-use market demands.

[0041] According to the embodiments of this application, a visual flushing and suction device is provided. A telescopic control mechanism consisting of a grip trigger 3 and a return spring is installed on the handle 2, forming a mechanical linkage with the flushing and suction line 11 passing through the straight tube 1. This enables the extension and automatic retraction of the flushing and suction line 11, solving the problem of fixed suction tubes and easy obstruction of the field of vision in traditional endoscopic instruments. Simultaneously, by providing a flushing control component and flow path topology on the handle 2, including a push-button switch 4, a continuous flushing valve 5, and first Y-type diverter 81, second Y-type diverter 82, and third Y-type diverter 83, the device is compatible with both water and air media endoscopic operating environments, enabling flexible switching between intermittent and continuous flushing, reducing the procurement costs for different endoscopic instruments in medical institutions. Furthermore, the independent dual-channel design at the front end and the transparent waterproof sealing cover 13 ensure signal transmission stability and electrical safety in deep water media operating environments; the flexible tube body at the extended end of the flushing and suction line 11 effectively avoids tissue damage. This device is highly integrated, easy to operate, and has a reliable structure, which can significantly improve the convenience and efficiency of irrigation, suction, and visualization in surgical procedures.

[0042] Next, referring to the accompanying drawings, a driving method for a visual punch attraction device according to an embodiment of this application is described, wherein the visual punch attraction device is the aforementioned visual punch attraction device.

[0043] Figure 4 This is a flowchart of a driving method for a visual suction device according to an embodiment of this application.

[0044] like Figure 4 As shown, the driving method includes the following steps: First, step S1 is performed: the operator applies external force to the grip trigger 3 on the handle 2. After the grip trigger 3 is subjected to force, the linkage mechanism drives the suction pipe 11 to overcome the return force of the return spring, causing the suction pipe 11 to extend along the axial guide channel toward the outer side of the front end of the straight tube 1 until it extends to the predetermined working position.

[0045] Subsequently, step S2 is executed: when suction or rinsing is no longer required, the operator removes the external force applied to the trigger 3. At this time, the previously compressed return spring releases its return force, driving the suction / rinsing tube 11 to automatically retract along the axial guide channel toward the interior of the straight tube 1, so that the front end of the suction / rinsing tube 11 retracts to a position inside or flush with the end face of the straight tube 1, avoiding obstruction of the field of view of the visual camera module, and effectively preventing foreign objects or tissues from accidentally touching the operating tube.

[0046] It should be noted that the foregoing explanation of an embodiment of a visual suction device also applies to the driving method of the visual suction device in this embodiment, and will not be repeated here.

[0047] In the description of this specification, the terms "an embodiment," "some embodiments," "example," "specific example," and "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0050] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0051] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0052] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A visual suction device, characterized in that, include: handle; A straight tube, connected to the handle, has an axial guide channel inside; A visual camera module is disposed at the front end of the straight tube; The flushing and suction pipe is installed in the axial guide channel, and the front end of the flushing and suction pipe can extend out of the front end of the straight tube or retract into the straight tube along the axial guide channel; A telescopic control mechanism is provided on the handle, and the telescopic control mechanism includes a gripping movable part and a reset part that are linked to the flushing and suction pipe; When an external force is applied to the gripping component, the gripping component drives the suction pipe to extend outward to the front end of the straight tube against the resetting force of the resetting component; when the external force is removed, the resetting component releases the resetting force and drives the suction pipe to retract into the straight tube.

2. The visual suction device according to claim 1, characterized in that, The handle is equipped with a flushing control component, which is used to control the flushing and suction pipe to switch between intermittent flushing mode and continuous flushing mode.

3. The visual suction device according to claim 2, characterized in that, The flushing control component includes a push-button switch and a continuous flushing valve on the handle, and the flushing and suction pipe has a flushing flow path inside; In the intermittent flushing mode, the push-button switch is used to open or close the flushing flow path; In the continuous flushing mode, the continuous flushing valve keeps the flushing flow path in a normally open state.

4. The visual suction device according to claim 1, characterized in that, The gripping component is a gripping trigger, and the reset component is a reset spring; The grip trigger is connected to the suction pipe via a linkage mechanism; The return spring abuts between the grip trigger and the handle, providing an elastic force to retract the suction line into the straight tube.

5. The visual suction device according to claim 1, characterized in that, The axial guide channel includes independent flushing and suction pipe channels and signal line channels; The flushing and suction pipe is installed inside the flushing and suction pipe channel; The visual camera module is connected to a signal line that runs through the signal line channel.

6. The visual suction device according to claim 1, characterized in that, The tail end of the flushing and suction pipe is connected to a Y-shaped diverter located inside the handle. The Y-shaped diverter is provided with a suction port and a flushing port. The suction port is used to connect to an external negative pressure suction source, and the rinsing port is used to connect to an external rinsing source.

7. The visual suction device according to claim 1, characterized in that, The portion of the flushing and suction pipe extending beyond the front end of the straight pipe is a flexible tube. The visual camera module includes a camera and LED lights, with the LED lights distributed on both sides of the camera.

8. The visual suction device according to claim 7, characterized in that, The front end of the visual camera module is fitted with a transparent waterproof sealing cover.

9. The visual suction device according to claim 1, characterized in that, The optical axis of the visual camera module and the axis of the straight tube are provided with a fixed included angle in the range of 0° to 70°; The handle and the straight tube are integrally molded medical plastic structures.

10. A driving method for a visual suction device, wherein the visual suction device is the visual suction device according to any one of claims 1 to 9, the visual suction device comprising a gripping movable member, a suction conduit, a resetting member, an axial guide channel, and a straight tube, characterized in that, The driving method includes the following steps: Step S1: Apply an external force to the gripping movable part, and drive the suction pipe through the gripping movable part to overcome the reset force of the reset part and extend it outward from the front end of the straight tube along the axial guide channel; Step S2: Remove the external force applied to the gripping movable part, release the reset force through the reset part, and drive the flushing and suction pipeline to retract into the straight tube along the axial guide channel.

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