A liquid absorbing device

Abstract

The utility model is suitable for medical instrument field provides a kind of liquid suction device, the liquid suction device includes: multi-cavity pipe body, its inside is equipped with mutually isolated liquid suction passage, camera channel and line control passage;Camera assembly is set in the camera channel;Line control silk is worn in the line control passage, and its distal end is fixed in multi-cavity pipe body distal end: bending mechanism is connected line control silk proximal end and is used to drive the line control silk relative to the line control passage moves.This application sets up liquid suction tube as multi-cavity pipe body, by setting line control silk and bending mechanism, the initiative bending function of liquid suction tube is realized, so that operator can accurate positioning, to improve the liquid suction efficiency, solve the technical problem that current liquid suction tube cannot realize controllable bending;Meanwhile, the camera assembly is set in the utility model, and the picture collected by the camera is transmitted to the display through the data interface, and the operator can accurately operate according to the real-time picture, greatly improve the accuracy of suction.

Description

Technical Field

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

[0002] With the continuous development of medical technology, suction devices, as commonly used medical instruments in clinical medicine, are widely used in various surgical and treatment processes. Especially in airway management, suctioning is an important means of maintaining a patient's airway patency.

[0003] Currently, the suction tubes used in clinical practice are usually single-lumen structures and lack active bending control. It is difficult for the suction tube to actively enter specific airways on the left and right sides, especially in complex anatomical structures. Medical staff need to rely on experience and feel to perform blind insertion during the operation, which results in low operation accuracy. Summary of the Invention

[0004] The purpose of this application is to provide a liquid suction device that can improve the above-mentioned problems.

[0005] One aspect of this application provides a liquid aspiration device, comprising:

[0006] The tube has a multi-lumen structure with internally isolated suction channels, camera channels, and wired control channels;

[0007] The camera assembly is located within the camera channel;

[0008] The wire is threaded through the wire control channel, and its distal end is fixed to the distal end of the multi-cavity tube.

[0009] A bending actuator is connected to the proximal end of the control wire and is used to drive the control wire to move relative to the control channel.

[0010] In some embodiments of this application, the wire control channel includes a first wire control channel and a second wire control channel, and the wire control wire includes a first wire control wire and a second wire control wire. The first wire control wire passes through the first wire control channel, and the second wire control wire passes through the second wire control channel. The first wire control channel and the second wire control channel are symmetrically distributed radially along the multi-cavity tube body. The bending control actuator is used to drive the first wire control wire and the second wire control wire to move relative to the first wire control channel and the second wire control channel, respectively.

[0011] In some embodiments of this application, the wired control channel and the camera channel are symmetrically distributed radially along the multi-cavity tube.

[0012] In some embodiments of this application, the center line connecting the wired control channel and the camera channel passes through the center of the cross-section of the multi-cavity tube, the liquid suction channel is located between the wired control channel and the camera channel, and the cross-sectional area of ​​the liquid suction channel is greater than the sum of the cross-sectional areas of the wired control channel and the camera channel.

[0013] In some embodiments of this application, the liquid aspiration device further includes an end connector fixed to the distal end of the multi-lumen tube, and the end of the end connector away from the multi-lumen tube is spherical.

[0014] In some embodiments of this application, the end connector is provided with a liquid suction port, the liquid suction port is connected to the liquid suction channel, and the distal end of the control wire is fixed to the end connector.

[0015] In some embodiments of this application, the end connector is provided with an axially extending receiving cavity, and the lens of the camera assembly is fixedly disposed in the receiving cavity.

[0016] In some embodiments of this application, the distal sidewall of the multi-lumen tube is provided with at least one lateral suction port, which is in communication with the liquid suction channel.

[0017] In some embodiments of this application, the liquid suction device further includes a handle, and the bending control actuator is movably disposed on the handle.

[0018] In some embodiments of this application, the proximal end of the multi-lumen tube is connected to a multi-port connector, which includes a first interface, a second interface, and a third interface. The first interface is connected to the liquid aspiration channel, the second interface is adapted to connect to a negative pressure source, and the third interface is connected to a negative pressure regulating port.

[0019] In some embodiments of this application, the multi-lumen tube is made of a flexible material, and the proximal stiffness of the multi-lumen tube is greater than its distal stiffness.

[0020] This application transforms the traditional suction tube into a multi-lumen tube body. By incorporating a wire-controlled wire and a bending control actuator, it achieves active bending control of the suction tube, enabling operators to accurately locate the fluid accumulation point, thereby improving suction efficiency and solving the technical problem that existing suction tubes cannot truly achieve controllable bending. Simultaneously, this application incorporates a camera component; the image captured by the camera at the far end of the multi-lumen tube body is transmitted to a display via a data interface, enabling real-time display of the suction process. Operators can perform precise operations based on the real-time image, no longer relying solely on experience and feel, significantly improving the accuracy of suctioning. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the liquid suction device shown in some embodiments of this application;

[0023] Figure 2 This is a structural schematic diagram of the cross-section of the multi-cavity tube in some embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the distal end of the multi-lumen tube in some embodiments of this application;

[0025] Figure 4 This is another structural schematic diagram of the distal end of the multi-lumen tube in some embodiments of this application;

[0026] Figure 5 This is a schematic diagram of the end connector structure in some embodiments of this application;

[0027] Figure 6 This is a schematic diagram of the handle portion of the liquid suction device shown in some embodiments of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the multi-port connector in some embodiments of this application.

[0029] Multi-lumen tube body, 101-liquid aspiration channel, 102-wired control channel, 103-camera channel, 104-lateral aspiration port;

[0030] 2-Wire control wire, 3-Camera assembly, 4-End connector, 5-Handle, 6-Control actuator, 7-Negative pressure interface, 701-Negative pressure port connector, 8-Negative pressure regulating port, 9-Data interface, 10-Multi-port connector, 1001 First interface, 1002 Second interface, 1003 Third interface. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] 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 one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0034] With the continuous development of medical technology, suction devices, as commonly used medical instruments in clinical medicine, are widely used in various surgical and treatment processes. Especially in airway management, suctioning is an important means of maintaining a patient's airway patency.

[0035] Currently, the suction tubes used in clinical practice are usually single-lumen structures. Most suction tubes cannot achieve truly controllable bending, and it is difficult for the suction tube to actively enter specific airways on the left and right sides. Medical staff need to rely on experience and feel to perform blind insertion during the operation, which makes it difficult to accurately locate the sputum position, resulting in low suction efficiency and often requiring multiple attempts to complete the suction process. During the operation, the tracheal wall is easily damaged, increasing the patient's discomfort and the risk of complications.

[0036] The aforementioned problems seriously affect the effectiveness and safety of sputum suctioning procedures. There is an urgent need for a suctioning device with controllable bending function that can accurately locate and efficiently remove sputum in order to improve the accuracy and safety of clinical sputum suctioning procedures.

[0037] Therefore, some embodiments of this application provide a liquid aspiration device, which includes: a multi-lumen tube 1, which has a liquid aspiration channel 101, a camera channel 103 and a wired control channel 102 that are isolated from each other; a camera assembly 3, which is disposed in the camera channel 103; a wired control wire 2, which is inserted into the wired control channel 102 and whose distal end is fixed to the distal end of the multi-lumen tube 1; and a bending control actuator 6, which is connected to the proximal end of the wired control wire 2 and is used to drive the wired control wire 2 to move relative to the wired control channel 102.

[0038] The multi-lumen tube 1 can be made of biocompatible polymer materials such as TPU, PVC, and silicone, or it can be a composite tube with variable stiffness distribution along the axial direction. In some embodiments of this application, the outer diameter of the multi-lumen tube 1 is 3mm to 7mm, and the inner diameter of the camera channel 103 is 0.6mm to 2.8mm.

[0039] Optionally, the multi-lumen tube 1 is made of medical-grade silicone material, which has good flexibility and biocompatibility. For example, the outer diameter of the multi-lumen tube 1 is 5 mm and the length is 300 mm; the outer diameter and length of the multi-lumen tube 1 can be adjusted according to actual usage requirements. The liquid aspiration channel 101, the camera channel 103, and the wired control channel 102 inside the multi-lumen tube 1 are isolated from each other by internal partitions to ensure that the functions of each channel do not interfere with each other. The liquid aspiration channel 101 is used to aspirate liquid, the camera channel 103 is used to accommodate the camera assembly 3, and the wired control channel 102 is used to accommodate the wired control wire 2.

[0040] Optionally, the multi-lumen tube 1 is made of a multi-layer composite material, with an inner layer of polytetrafluoroethylene, a middle layer of nylon, and an outer layer of medical-grade silicone. This multi-layered structure gives the multi-lumen tube 1 good chemical stability, mechanical strength, and biocompatibility.

[0041] Optionally, the outer surface of the multi-lumen tube 1 is coated with a hydrophilic coating to reduce friction with tissues and facilitate insertion and movement. The hydrophilic coating is 0.01 mm thick and does not affect the flexibility and bending performance of the multi-lumen tube 1.

[0042] Optionally, the camera component 3 includes a miniature camera and a transmission cable. The transmission cable connects the miniature camera and an external display device via a data interface 9 to achieve real-time image transmission.

[0043] Optionally, the wire control wire 2 is made of stainless steel, which has good toughness and strength. The distal end of the wire control wire 2 is fixed to the distal end of the multi-cavity tube 1, and the proximal end is connected to the bending control actuator 6. The wire control wire 2 can slide within the wire control channel 102, and the bending control of the distal end of the multi-cavity tube 1 is achieved by driving the bending control actuator 6.

[0044] This application transforms the traditional suction tube into a multi-lumen tube body 1. By incorporating a wire control wire 2 and a bending control actuator 6, it achieves active bending control of the suction tube, enabling operators to accurately locate the fluid accumulation point, thereby improving suction efficiency and solving the technical problem that existing suction tubes cannot truly achieve controllable bending. Simultaneously, this application incorporates a camera component 3. The image captured by the camera at the far end of the multi-lumen tube body 1 is transmitted to the display via a data interface 9, enabling real-time display of the suction process. Operators can perform precise operations based on the real-time image, no longer relying solely on experience and feel, greatly improving the accuracy of sputum suction.

[0045] In some embodiments of this application, the wire control channel 102 includes a first wire control channel and a second wire control channel, and the wire control wire 2 includes a first wire control wire and a second wire control wire. The first wire control wire passes through the first wire control channel, and the second wire control wire passes through the second wire control channel. The first wire control channel and the second wire control channel are radially symmetrically distributed along the multi-cavity tube body 1, and the included angle between them is 180 degrees. The bending control actuator 6 is used to drive the first wire control wire and the second wire control wire to move relative to the first wire control channel and the second wire control channel, respectively.

[0046] When the bending control actuator 6 pulls the first control wire, the distal end of the multi-lumen tube 1 bends in the direction of the first control wire; when the bending control actuator 6 pulls the second control wire, the distal end of the multi-lumen tube 1 bends in the direction of the second control wire. By controlling the magnitude and direction of the pulling force of the two control wires 2, bending of the distal end of the multi-lumen tube 1 in different planes can be achieved, improving the flexibility and adaptability of the liquid suction device.

[0047] In some embodiments of this application, the wire control channel 102 includes a first wire control channel, a second wire control channel, and a third wire control channel 102, and the wire control wire 2 includes a first wire control wire, a second wire control wire, and a third wire control wire 2. The first wire control wire passes through the first wire control channel, the second wire control wire passes through the second wire control channel, and the third wire control wire 2 passes through the third wire control channel 102. The first, second, and third wire control channels 102 are evenly distributed radially along the multi-lumen tube body 1, and the included angle between them is 120 degrees. The bending control actuator 6 is used to drive the first, second, and third wire control wires 2 to move relative to the first, second, and third wire control channels 102, respectively. Through the synergistic action of the three wire control wires 2, flexible bending of the distal end of the multi-lumen tube body 1 in three-dimensional space can be achieved, further improving the control accuracy and adaptability of the liquid aspiration device.

[0048] In some embodiments of this application, the wire control channel 102 and the camera channel 103 are radially symmetrically distributed along the multi-cavity tube 1. The included angle between the wire control channel 102 and the camera channel 103 is 180 degrees. By symmetrically setting them at 180 degrees, the bending lever arm of the wire control wire 2 is maximized, and the bending response speed is improved. This symmetrical distribution design makes the multi-cavity tube 1 more stable when bending, reduces the shaking of the camera assembly 3, and improves image quality.

[0049] In some embodiments of this application, the center line connecting the wired control channel 102 and the camera channel 103 passes through the center of the cross-section of the multi-lumen tube 1. The liquid suction channel 101 is located between the wired control channel 102 and the camera channel 103, which can avoid eccentric deformation of the tube body during negative pressure suction. The cross-sectional area of ​​the liquid suction channel 101 is greater than the sum of the cross-sectional areas of the wired control channel 102 and the camera channel 103. Optionally, the cross-sectional area of ​​the liquid suction channel 101 is 4.9 square millimeters, while the sum of the cross-sectional areas of the wired control channel 102 and the camera channel 103 is 2.25 square millimeters. This design ensures that the liquid suction channel 101 has a sufficiently large cross-sectional area, improving liquid suction efficiency.

[0050] In some embodiments of this application, the aspiration device further includes an end connector 4, which is fixed to the distal end of the multi-lumen tube 1, and the end of the end connector 4 away from the multi-lumen tube 1 is spherical. This design can reduce damage to tissues and improve operational safety.

[0051] In some embodiments of this application, the end connector 4 is made of a transparent material to facilitate observation of the liquid flow inside the end connector 4. A filter screen is provided inside the end connector 4, located at the connection between the liquid suction port and the liquid suction channel 101, to filter impurities in the liquid and prevent blockage of the liquid suction channel 101.

[0052] In some embodiments of this application, the end of the end connector 4 furthest from the multi-lumen tube 1 is not only spherical but also has a soft silicone protective layer to further reduce damage to tissues. A sealing ring is provided at the connection between the end connector 4 and the multi-lumen tube 1 to ensure a reliable seal and prevent liquid leakage.

[0053] In some embodiments of this application, the end connector 4 is provided with a liquid suction port, which communicates with the liquid suction channel 101, and the distal end of the control wire 2 is fixed to the end connector 4. Optionally, the diameter of the liquid suction port is the same as the diameter of the liquid suction channel 101 to ensure smooth liquid flow. The distal end of the control wire 2 is fixed to the end connector 4 and is firmly connected by welding or bonding to ensure the reliability of the bending control operation.

[0054] In some embodiments of this application, the end connector 4 is provided with an axially extending receiving cavity, and the lens of the camera assembly 3 is fixedly disposed within the receiving cavity. The lens of the camera assembly 3 can be fixed within the receiving cavity by means of snap-fit ​​or adhesive, ensuring that the lens position is stable and will not move during use.

[0055] In some embodiments of this application, the distal sidewall of the multi-lumen tube 1 is provided with at least one lateral suction port 104, which communicates with the liquid suction channel 101. By providing the lateral suction port 104 and communicating with the liquid suction channel 101, the liquid suction area can be increased and the liquid suction efficiency can be improved. Optionally, the distal sidewall of the multi-lumen tube 1 is provided with eight lateral suction ports 104, which are divided into two groups of four lateral suction ports 104 each. The two groups of lateral suction ports 104 are symmetrically distributed with respect to the liquid suction channel 101, and the four lateral suction ports 104 in each group are staggered on the tube wall of the multi-lumen tube 1.

[0056] In some embodiments of this application, the aspiration device further includes a handle 5, and the bending control actuator 6 is slidably disposed on the handle 5. The operator can operate the bending control actuator 6 to make the bending control actuator 6 slide along the handle 5 groove, and complete the bending control operation with one hand, freeing up the other hand to fix the patient's position, which is suitable for emergency scenarios.

[0057] The handle 5 is made of engineering plastic material, and the surface of the handle 5 has anti-slip texture. The bending control mechanism 6 is movably mounted on the handle 5. The operator can move the bending control mechanism 6 on the handle 5 to control the bending of the wire 2.

[0058] Optionally, the negative pressure regulating port 8 is located on one side of the handle 5 in the radial direction, and the bending control actuator 6 is located on the other side of the handle 5 in the radial direction. During use, the operator holds the handle 5 with one hand, and places the thumb of that hand on the negative pressure regulating port 8. The negative pressure is adjusted by the force and tightness of the finger pressing the negative pressure regulating port 8. The other hand can operate the bending control actuator 6, causing the bending control actuator 6 to move relative to the handle 5, thereby realizing the active adjustment of the distal angle of the multi-cavity tube 1.

[0059] In some embodiments of this application, the bending control actuator 6 may further include a control knob. By manually controlling the knob to rotate left or right, the operator can move the pull wire 2 within the control channel 102, thereby changing the bending direction and angle of the distal end of the multi-lumen tube 1. The bending control actuator 6 can achieve a bending angle of 0-180 degrees at the distal end of the multi-lumen tube 1, meeting the liquid suction needs in different environments.

[0060] In some embodiments of this application, a multi-lumen tube 1 is connected to a multi-port connector 10 at its proximal end. The multi-port connector 10 is made of medical-grade plastic material and includes a first interface 1001, a second interface 1002, and a third interface 1003. The first interface 1001 communicates with the aspiration channel 101 and is used to connect to the aspiration tubing. The second interface 1002 is adapted to connect to the negative pressure interface 7 via a negative pressure port pipe 701, and further connect to a negative pressure source, such as a negative pressure pump or negative pressure tank, to provide the negative pressure required for aspiration. The third interface 1003 connects to a negative pressure regulating port 8, and the negative pressure is controlled by adjusting the valve to adapt to different aspiration needs. Optionally, the multi-port connector can be fixed to the multi-lumen tube 1, the negative pressure interface pipe 7, and the negative pressure regulating port 8 by adhesive bonding.

[0061] In some embodiments of this application, the multi-lumen tube 1 is made of a flexible material, with the proximal end of the multi-lumen tube 1 having greater stiffness than its distal end. This design provides sufficient stiffness at the proximal end of the multi-lumen tube 1 for easy operator control, while the distal end exhibits good flexibility, reducing damage to tissues. Optionally, the stiffness of the multi-lumen tube 1 gradually transitions along its length.

[0062] In some embodiments of this application, the camera assembly 3 includes a miniature camera, a light source, and a transmission cable. The light source is a ring-shaped LED light surrounding the miniature camera to provide illumination and enhance image clarity. The transmission cable is made of optical fiber, which offers high transmission speed and strong anti-interference capabilities.

[0063] In some embodiments of this application, the camera component 3 further includes an image processing module for real-time processing of the images captured by the camera, such as noise reduction and contrast enhancement, to improve image quality. The image processing module wirelessly transmits the processed image to an external display device, facilitating observation of the aspiration process by medical personnel.

[0064] In some embodiments of this application, the liquid aspiration device further includes a negative pressure control system, which includes a negative pressure pump, a pressure sensor, and a controller. The negative pressure pump provides the negative pressure required for liquid aspiration, the pressure sensor monitors the pressure changes within the liquid aspiration channel 101 in real time, and the controller adjusts the output of the negative pressure pump based on the feedback information from the pressure sensor, thereby achieving intelligent negative pressure control.

[0065] The negative pressure control system can provide negative pressure within the range of 0-100 kPa to meet different liquid suction needs. The controller also has an overpressure protection function, which automatically stops the negative pressure pump when the pressure in the liquid suction channel 101 is abnormal, ensuring safe operation.

[0066] Those skilled in the art will understand that the above embodiments are specific implementations of the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A liquid suction device, characterized in that, include: The tube has a multi-lumen structure with internally isolated suction channels, camera channels, and wired control channels; The camera assembly is located within the camera channel; The wire is threaded through the wire control channel, and its distal end is fixed to the distal end of the multi-cavity tube. A bending actuator is connected to the proximal end of the control wire and is used to drive the control wire to move relative to the control channel.

2. The liquid suction device according to claim 1, characterized in that, The wire control channel includes a first wire control channel and a second wire control channel, and the wire control wire includes a first wire control wire and a second wire control wire. The first wire control wire passes through the first wire control channel, and the second wire control wire passes through the second wire control channel. The first wire control channel and the second wire control channel are symmetrically distributed radially along the multi-cavity tube body. The bending control actuator is used to drive the first wire control wire and the second wire control wire to move relative to the first wire control channel and the second wire control channel, respectively.

3. The liquid suction device according to claim 1, characterized in that, The wired control channel and the camera channel are symmetrically distributed radially along the multi-cavity tube.

4. The liquid suction device according to claim 3, characterized in that, The center line connecting the wired control channel and the camera channel passes through the center of the cross-section of the multi-cavity tube. The liquid suction channel is located between the wired control channel and the camera channel, and the cross-sectional area of ​​the liquid suction channel is greater than the sum of the cross-sectional areas of the wired control channel and the camera channel.

5. The liquid suction device according to claim 1, characterized in that, It also includes an end connector, which is fixed to the distal end of the multi-lumen tube body, and the end of the end connector away from the multi-lumen tube body is spherical.

6. The liquid suction device according to claim 5, characterized in that, The end connector is provided with a liquid suction port, which is connected to the liquid suction channel, and the distal end of the control wire is fixed to the end connector.

7. The liquid suction device according to claim 6, characterized in that, The end connector has an axially extending receiving cavity, and the lens of the camera assembly is fixedly installed in the receiving cavity.

8. The liquid suction device according to claim 1, characterized in that at least one lateral suction port is provided on the distal sidewall of the multi-lumen tube, and the lateral suction port is in communication with the liquid suction channel.

9. The liquid suction device according to claim 1, characterized in that, It also includes a handle, on which the bending control actuator is movably mounted.

10. The liquid suction device according to claim 1, characterized in that, The proximal end of the multi-lumen tube is connected to a multi-port connector, which includes a first interface, a second interface, and a third interface. The first interface is connected to the liquid aspiration channel, the second interface is adapted to connect to a negative pressure source, and the third interface is connected to a negative pressure regulating port.

11. The liquid suction device according to claim 1, characterized in that, The multi-lumen tube is made of a flexible material, and the stiffness of the proximal end of the multi-lumen tube is greater than that of the distal end.

Images