Bronchial sputum thrombus cleaning device

Abstract

The invention relates to the technical field of medical instruments, in particular to a bronchial sputum plug cleaning device which comprises a catheter and a guide wire movably arranged in the catheter and further comprises a cleaning part arranged at the end of the guide wire and capable of being connected with a sputum plug through pulling and winding and moving out of the catheter along with the guide wire; the control part is arranged on the outer side of the tail end of the guide wire and can control the guide wire to be pulled and rotated, according to the bronchial sputum embolism cleaning device, the conical spiral winding wire is designed to serve as the cleaning part and can be flexibly bent in the bronchial tube and effectively make contact with the sputum embolism, and the outermost ring of the large end of the winding wire is a smooth section; the sputum suppository is simple in structure and convenient to use, damage to the bronchus wall when the sputum suppository passes through the bronchus is avoided, operation safety is guaranteed, meanwhile, the sputum suppository grabbing effect is enhanced through the cilia design on the winding wire, and the sputum suppository can be wound more effectively and moved out of the catheter along with the guide wire.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a bronchial sputum plug clearing device. Background Art

[0002] During bronchoscopy of children with respiratory infections, doctors often find that the tiny bronchial openings are blocked by sputum plugs. This phenomenon seriously hinders the ventilation function of the children and is one of the key factors leading to the persistence of their respiratory diseases. In addition, the continued presence of sputum plugs may also cause a series of serious complications, such as atelectasis, lung abscesses, etc., further aggravating the children's condition.

[0003] To solve the problem of sputum plug removal, the current clinical practice mainly relies on the technical means of alveolar lavage. However, in actual operation, some sputum plugs are difficult to be effectively removed by simple lavage due to their viscous texture or special location. In order to meet this challenge, doctors usually take more active measures, such as using a brush to wrap and drag the sputum plug, or using biopsy forceps to directly clamp the sputum plug. These methods have a relatively high probability of success and can solve the problem of sputum plug blockage to a certain extent.

[0004] However, it is worth noting that the above operation process is often time-consuming, and because the tracheal mucosa of children is relatively fragile and easily damaged, the tracheal bleeding rate of children is high after the sputum plug is cleared, which may not only lead to bronchial congestion and edema, but also may have an adverse effect on the mucosal repair of children. More seriously, continuous mucosal damage and inflammatory response may increase the risk of bronchial adhesion and closure, thereby further prolonging the course of the disease and increasing the difficulty of treatment. For this reason, we propose a bronchial sputum plug clearing device. Summary of the invention

[0005] In order to solve the above technical problems, the embodiment of the present application provides a bronchial sputum plug clearing device, including a catheter and a guide wire movably arranged in the catheter, and also includes:

[0006] The cleaning part is arranged at the end of the guide wire, and can be connected with the sputum plug by pulling and winding and moved out of the catheter along with the guide wire;

[0007] The control part is arranged outside the end of the guide wire and can control the pulling and rotation of the guide wire.

[0008] In some embodiments, the cleaning portion is a conical spiral winding wire, the tip of the winding wire faces the advancing direction of the guide wire, the winding wire is integrally formed of a medical flexible material, and cilia are arranged on the outside of the winding wire.

[0009] In some embodiments, the outer diameter of the wrapping wire is larger than the inner diameter of the catheter and smaller than the outer diameter of the catheter.

[0010] In some embodiments, the guide wire is hollow, and a top strip is movably provided inside the front end of the guide wire, the end of the top strip is fixedly connected to the tip of the winding wire, and the outer end of the winding wire is fixedly connected to the guide wire.

[0011] In some embodiments, the outermost circle of the large end of the winding wire is a smooth section, and the rest of the section is provided with cilia.

[0012] In some embodiments, the control part includes a handle connected to the guide wire, a control shell is provided on the handle, an airbag is provided in the control shell, the airbag is connected to the hollow part of the guide wire, a knob is movably provided in the control shell, connecting shafts are provided on both sides of the knob, a slide groove is opened on the inner side of the control shell, and the connecting shaft is movably provided in the slide groove.

[0013] In some embodiments, a socket is provided at the end of the guide wire, and a cannula connected to the socket is provided on the control shell, and the cannula is communicated with the airbag.

[0014] In some embodiments, the control unit includes a second handle connected to the guide wire, the end of the guide wire is connected to a second airbag, and the second airbag is connected to the hollow part of the guide wire.

[0015] In some embodiments, the distal end of the catheter is also connected to a negative pressure device.

[0016] In some embodiments, the cleaning portion is a cleaning rod with cilia on the outside, and the cilia on the outside of the cleaning rod are arranged obliquely and the inclination direction is toward the advancing direction of the guide wire.

[0017] The present invention has at least the following beneficial effects:

[0018] 1. Efficient cleaning and safety: The device uses a conical spiral winding wire as the cleaning part, which can be flexibly bent in the bronchus and effectively contact the sputum plug. The outermost circle of the large end of the winding wire is a smooth section, which avoids damage to the bronchial wall when passing through the bronchus and ensures the safety of operation. At the same time, the cilia design on the winding wire enhances the grasping effect of the sputum plug, so that the sputum plug can be more effectively wrapped and moved out of the catheter along with the guide wire;

[0019] 2. Innovative top strip design: A movable top strip is set inside the guide wire, and the airbag or similar structure in the control unit drives the top strip to move, thereby driving the winding wire to stretch and reset. This design not only increases the gripping force of the sputum plug, but also enables the winding wire to better fit and clamp the sputum plug, further improving the cleaning effect;

[0020] 3. Negative pressure-assisted cleaning: The negative pressure device connected to the end of the catheter, such as a micro negative pressure pump or syringe, can control the suction force as needed to assist in the cleaning and removal of sputum plugs. This design not only improves the cleaning efficiency, but also makes the operation more flexible and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of local structure;

[0023] Figure 3 For the present invention Figure 2 Another structural diagram;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the control housing of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the guide wire of the present invention;

[0026] Figure 6 It is a schematic diagram of the winding wire structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0029] Fig. 9 This is a schematic diagram of the cleaning rod structure in Example 3 of the present invention.

[0030] In the figure: 1-catheter; 2-guide wire; 3-cleaning part; 4-control part; 5-winding wire; 6-top bar; 7-control shell; 8-airbag one; 9-knob; 10-connecting shaft; 11-slide groove; 12-airbag two; 13-cleaning rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1-Figure 6The present invention provides a technical solution: a bronchial sputum plug cleaning device, comprising a catheter 1 and a guide wire 2 movably arranged in the catheter 1, wherein the catheter 1 is a hollow sheath tube, and both the catheter 1 and the guide wire 2 are made of medical flexible materials and can be bent at will in the bronchus, and further comprising a cleaning portion 3 arranged at the front end of the guide wire 2, wherein the cleaning portion 3 is a conical spiral winding wire 5, wherein the tip of the winding wire 5 faces the advancing direction of the guide wire 2, the outermost circle of the large end of the winding wire 5 is a smooth section, and the rest of the parts are provided with cilia, the winding wire 5 is integrally formed of medical flexible materials, and the outer diameter of the winding wire 5 is larger than the inner diameter of the catheter 1 and smaller than the outer diameter of the catheter 1;

[0033] When the guide wire 2 is located in the catheter 1, the winding wire 5 can be deformed at will to pass through the catheter 1. When the guide wire 2 moves through the catheter 1 into the bronchus, the winding wire 5 unfolds into a conical spiral shape. Since the outermost portion of the large end of the winding wire 5 is a smooth section without cilia, when the winding wire 5 passes, its outer side contacts the bronchial wall and does not damage it. When cleaning the sputum plug, the guide wire 2 can be controlled to be pulled and rotated, so that the winding wire 5 is connected to the sputum plug, which is convenient for removing it:

[0034] The control unit 4 is disposed outside the distal end of the guide wire 2 and can control the guide wire 2 to pull and rotate.

[0035] The guide wire 2 is hollow, and a top strip 6 is movably provided inside the front end of the guide wire 2. The end of the top strip 6 is fixedly connected to the tip of the winding wire 5, and the outer end of the winding wire 5 is fixedly connected to the guide wire 2. In order to increase the gripping effect of the winding wire 5 on the sputum plug, a top strip 6 is provided inside the front end of the guide wire 2. When the top strip 6 moves out of the guide wire 2, it can drive the small end of the winding wire 5 to move, and then drive the winding wire 5 to stretch, and when the winding wire 5 is reset, its spiral body can clamp the part of the sputum plug embedded therein, and the cilia on its outer side are staggered and close to each other to also have a clamping effect, thereby increasing the gripping effect on the sputum plug.

[0036] The control part 4 includes a handle 1 connected to the guide wire 2, a control shell 7 is arranged on the handle 1, an air bag 18 is arranged in the control shell 7, the air bag 18 is connected to the hollow part of the guide wire 2, a knob 9 is movably arranged in the control shell 7, connecting shafts 10 are arranged on both sides of the knob 9, a slide groove 11 is opened on the inner side of the control shell 7, and the connecting shaft 10 is movably arranged in the slide groove 11.

[0037] In order to control the movement of the top strip 6, a driving structure is provided at a place of the handle, and the knob 9 is driven by the finger to move in the control shell 7. The knob 9 squeezes the air bag 8 during the movement, so that the air inside it is squeezed into the guide wire 2, and then the top strip 6 is driven to move by the air pressure.

[0038] A socket is provided at the end of the guide wire 2, and a cannula connected to the socket is provided on the control shell 7. The cannula is communicated with the airbag 8. Through the detachable connection mode of plugging, the control part 4 can be reused after disinfection, thereby reducing the use cost.

[0039] The end of the catheter 1 is also connected to a negative pressure device, which can be a micro negative pressure pump. In order to facilitate the control of the suction force, the negative pressure device can also use a syringe, which can better control the suction force.

[0040] In summary, the device consists of a flexible catheter 1, a movable guide wire 2 and a conical spiral cleaning part 3 at its front end, and a control part 4. The catheter 1 is hollow, and the guide wire 2 is also flexible and can be freely bent in the catheter 1. The cleaning part 3 at the front end of the guide wire 2, that is, the winding wire 5, is designed to be conical and spiral, with the tip facing forward, and the outermost circle of the large end is smooth to avoid damaging the bronchial wall. The rest of the part is covered with cilia to enhance the sputum plug grabbing effect. When the guide wire 2 and the winding wire 5 enter the bronchus through the catheter 1, the winding wire 5 is unfolded, and the guide wire 2 is operated by the control part 4 to be pulled and rotated, so that the winding wire 5 contacts the sputum plug and is wound and fixed. In particular, the inside of the guide wire 2 A movable top strip 6 is provided, which is fixed to the tip of the winding wire 5. The air is squeezed into the guide wire 2 by the air bag 8 in the control part 4 to push the top strip 6, so that the winding wire 5 is stretched and better fits and clamps the sputum plug. The control part 4 includes a handle 1, an air bag 8 and a knob 9. The knob 9 moves and squeezes the air bag 8 to realize the driving of the top strip 6. The end of the guide wire 2 is connected to the control part 4 through a detachable cannula, which is convenient for disinfection and reuse. In addition, the end of the catheter 1 is connected to a negative pressure device, such as a micro negative pressure pump or a syringe, which is used to control the suction force and assist in the cleaning and removal of the sputum plug. The whole process realizes flexible, effective and safe cleaning of the sputum plug in the bronchus.

[0041] Example 2: Please refer to Figure 5-Figure 7 The present invention provides a technical solution: a bronchial sputum plug cleaning device, comprising a bronchial sputum plug cleaning device, comprising a catheter 1 and a guide wire 2 movably arranged in the catheter 1, the catheter 1 is a hollow sheath tube, the catheter 1 and the guide wire 2 are both made of medical flexible materials, and can be bent arbitrarily in the bronchus, and also includes a cleaning part 3 arranged at the front end of the guide wire 2, the cleaning part 3 is a conical spiral winding wire 5, the tip of the winding wire 5 faces the forward direction of the guide wire 2, the outermost circle of the large end of the winding wire 5 is a smooth section, and the rest of the parts are provided with cilia, the winding wire 5 is integrally formed by medical flexible materials, and the outer diameter of the winding wire 5 is larger than the inner diameter of the catheter 1 and smaller than the outer diameter of the catheter 1;

[0042] When the guide wire 2 is located in the catheter 1, the winding wire 5 can be deformed at will to pass through the catheter 1. When the guide wire 2 moves through the catheter 1 into the bronchus, the winding wire 5 unfolds into a conical spiral shape. Since the outermost portion of the large end of the winding wire 5 is a smooth section without cilia, when the winding wire 5 passes, its outer side contacts the bronchial wall and does not damage it. When cleaning the sputum plug, the guide wire 2 can be controlled to be pulled and rotated, so that the winding wire 5 is connected to the sputum plug, which is convenient for removing it:

[0043] The control unit 4 is disposed outside the distal end of the guide wire 2 and can control the guide wire 2 to pull and rotate.

[0044] The guide wire 2 is hollow, and a top strip 6 is movably provided inside the front end of the guide wire 2. The end of the top strip 6 is fixedly connected to the tip of the winding wire 5, and the outer end of the winding wire 5 is fixedly connected to the guide wire 2. In order to increase the gripping effect of the winding wire 5 on the sputum plug, a top strip 6 is provided inside the front end of the guide wire 2. When the top strip 6 moves out of the guide wire 2, it can drive the small end of the winding wire 5 to move, thereby driving the winding wire 5 to stretch, and when the winding wire 5 is reset, its spiral body can clamp the part of the sputum plug embedded therein, and the cilia on its outer side are staggered and close to each other to also have a clamping effect, thereby increasing the gripping effect on the sputum plug.

[0045] The control unit 4 includes a handle 2 connected to the guide wire 2. The end of the guide wire 2 is connected to an airbag 2 12. The airbag 2 12 is connected to the hollow part of the guide wire 2. By pressing the airbag 2 12, air is squeezed into the inside of the guide wire 2, thereby driving the top strip 6 to move and drive the winding wire 5 to deform.

[0046] The end of the catheter 1 is also connected to a negative pressure device, which can be a micro negative pressure pump. In order to facilitate the control of the suction force, the negative pressure device can also use a syringe, which can better control the suction force.

[0047] Example 3: Please refer to Figure 8-Figure 9 The present invention provides a technical solution: a bronchial sputum plug clearing device, comprising a catheter 1 and a guide wire 2 movably arranged in the catheter 1, and also comprising:

[0048] The cleaning part 3 is arranged at the end of the guide wire 2, and can be connected with the sputum plug by pulling and winding and moved out of the catheter 1 along with the guide wire 2;

[0049] The control unit 4 is disposed outside the distal end of the guide wire 2 and can control the guide wire 2 to pull and rotate.

[0050] The control unit 4 includes a handle 3 connected to the guide wire 2, and the guide wire 2 is controlled by the handle to be pulled and rotated.

[0051] The end of the catheter 1 is also connected to a negative pressure device, which can be a micro negative pressure pump. In order to facilitate the control of the suction force, the negative pressure device can also use a syringe, which can better control the suction force.

[0052] The cleaning portion 3 is a cleaning rod 13 with cilia on the outside. The cilia on the outside of the cleaning rod 13 are inclined and the inclination direction is toward the advancing direction of the guide wire 2. Through such a setting, when the guide wire 2 advances, due to the inclined setting of the cilia, it can reduce the friction damage to the bronchial wall, and can also be more easily inserted into the sputum plug, and when pulling back, its inclined cilia can also better fix the sputum plug. On the other hand, when pulling back, since it grabs the sputum plug, the sputum plug is wrapped around the outside of the cleaning rod 13 during this process, and the friction between the cilia and the bronchial wall during the pulling back process is also avoided.

[0053] In summary, the device integrates a catheter 1, a movable guide wire 2 and a cleaning part 3 and a control part 4 at its end. The cleaning part 3 is designed as a cleaning rod 13 with inclined cilia. The cilia are inclined toward the advancing direction of the guide wire 2, which can not only reduce the friction with the bronchial wall when the guide wire 2 is advanced, but also facilitate insertion into the sputum plug. The guide wire 2 is pulled and rotated by controlling handle three so that the cleaning rod 13 is wrapped around and fixes the sputum plug. During the pulling back process, the inclined cilia effectively fix the sputum plug and avoid direct friction between the cilia and the bronchial wall because the sputum plug is wrapped on the outside of the cleaning rod 13. In addition, the negative pressure device connected to the end of the catheter 1, such as a micro negative pressure pump or a syringe, can control the suction force as needed to assist in the cleaning and removal of the sputum plug. The entire device achieves safe and effective cleaning of bronchial sputum plugs.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A bronchial sputum plug clearing device, comprising a catheter (1) and a guide wire (2) movably arranged in the catheter (1), characterized in that: Also included are: A cleaning portion (3) is arranged at the end of the guide wire (2), and can be connected to the sputum plug by pulling and winding, and can be moved out of the catheter (1) along with the guide wire (2); The control unit (4) is arranged outside the end of the guide wire (2) and can control the guide wire (2) to pull and rotate.

2. The bronchial sputum plug clearing device according to claim 1, characterized in that: The cleaning portion (3) is a conical spiral winding wire (5), the tip of the winding wire (5) faces the advancing direction of the guide wire (2), the winding wire (5) is integrally formed from a medical flexible material, and cilia are arranged on the outside of the winding wire (5).

3. The bronchial sputum plug clearing device according to claim 2, characterized in that: The outer diameter of the winding wire (5) is larger than the inner diameter of the catheter (1) and smaller than the outer diameter of the catheter (1).

4. The bronchial sputum plug clearing device according to claim 2, characterized in that: The guide wire (2) is hollow, and a top strip (6) is movably provided inside the front end of the guide wire (2), the end of the top strip (6) is fixedly connected to the tip of the winding wire (5), and the outer end of the winding wire (5) is fixedly connected to the guide wire (2).

5. The bronchial sputum plug clearing device according to claim 2, characterized in that: The outermost circle of the large end of the winding wire (5) is a smooth section, and the remaining parts are provided with cilia.

6. The bronchial sputum plug clearing device according to claim 1, characterized in that: The control part (4) comprises a handle connected to the guide wire (2), a control shell (7) being arranged on the handle, an air bag (8) being arranged inside the control shell (7), the air bag (8) being communicated with the hollow part of the guide wire (2), a knob (9) being movably arranged inside the control shell (7), connecting shafts (10) being arranged on both sides of the knob (9), a slide groove (11) being provided on the inner side of the control shell (7), and the connecting shaft (10) being movably arranged in the slide groove (11).

7. The bronchial sputum plug clearing device according to claim 6, characterized in that: The end of the guide wire (2) is provided with a socket, and the control shell (7) is provided with a cannula connected to the socket, and the cannula is communicated with the air bag (8).

8. The bronchial sputum plug clearing device according to claim 1, characterized in that: The control unit (4) comprises a second handle connected to the guide wire (2); the end of the guide wire (2) is connected to a second airbag (12); and the second airbag (12) is in communication with the hollow portion of the guide wire (2).

9. The bronchial sputum plug clearing device according to claim 1, characterized in that: The end of the catheter (1) is also connected to a negative pressure device.

10. The bronchial sputum plug clearing device according to claim 1, characterized in that: The cleaning portion (3) is a cleaning rod (13) with cilia on the outside, and the cilia on the outside of the cleaning rod (13) are arranged obliquely and the oblique direction faces the advancing direction of the guide wire (2).

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