Electric flexible bronchoscope

Abstract

The present invention discloses an electric flexible bronchoscope, comprising a flexible mirror, the end of which is bendable, and the head end of which is provided with a first rotating body and a second rotating body connected coaxially; a motion control mechanism, which comprises a first motion control mechanism and a second motion control mechanism coaxially and spaced apart, the first motion control mechanism is sleeved on the outer periphery of the first rotating body and forms a group of transmission structures with the first rotating body, and the second motion control mechanism is sleeved on the outer periphery of the second rotating body and forms a group of transmission structures with the second rotating body; one end of two steel wires are respectively connected to the opposite sides of the second rotating body, and the other ends are inserted into the first rotating body close to each other and extend in parallel to connect with the end of the flexible mirror. Automatic control is realized, the difficulty of doctor's operation is reduced, and the doctor does not need to hold the mirror to operate like using a handheld mirror, which greatly reduces the doctor's physical consumption. At the same time, automatic control has higher accuracy, and more complex bronchoscopic examinations and operations can be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an electric flexible bronchoscope. Background Art

[0002] A bronchoscope is a medical device that is inserted into the patient's lower respiratory tract through the mouth or nose and is used for observation, biopsy sampling, bacteriological and cytological examinations of lobar, segmental and subsegmental bronchial lesions. It can be used with a CT system for photography, sensitivity and dynamic recording. The connected biopsy sampling accessories can assist in the discovery of early lesions and can be used for internal surgical operations such as polypectomy. It is suitable for bronchial and lung disease research and postoperative examinations. With the rapid development of endoscopic technology, there are more and more treatment techniques under respiratory endoscopy. Most of the treatments under respiratory endoscopy require the doctor to hold the bronchoscope in one hand to manually operate the swing and rotation movements, and the other hand is responsible for the feeding movement. This form of operation has relatively high requirements for doctors, especially for high-precision movement requirements, manual operation cannot achieve such good results. Summary of the invention

[0003] In view of the above existing technical problems, the purpose of the present invention is to provide an electric flexible bronchoscope, which realizes automatic control, reduces the difficulty of doctors using the bronchoscope, and does not require doctors to hold the bronchoscope for operation like using a handheld scope, which greatly reduces the physical consumption of doctors. At the same time, the automatic control has higher accuracy and can complete more complex bronchoscopic examinations and operations.

[0004] The technical solution of the present invention is:

[0005] The object of the present invention is to provide an electric flexible bronchoscope, comprising:

[0006] A soft mirror, the end of which is bendable, and the head end of which is provided with a first rotating body and a second rotating body which are coaxially connected;

[0007] A motion control mechanism, comprising a first motion control mechanism and a second motion control mechanism coaxially and spaced apart, wherein the first motion control mechanism is sleeved on the outer periphery of the first rotating body and forms a transmission structure with the first rotating body, and the second motion control mechanism is sleeved on the outer periphery of the second rotating body and forms a transmission structure with the second rotating body;

[0008] Two steel wires, one end of each of which is connected to two opposite sides of the second rotating body, and the other end of each of which is inserted into the first rotating body close to each other and extends in parallel to be connected to the end of the soft lens;

[0009] When the first rotating body and the second rotating body rotate in opposite directions at a constant speed, one of the two steel wires is stretched outwards and the other is contracted inwards, so that the end of the soft mirror performs a bending and swinging motion;

[0010] When the first rotating body and the second rotating body rotate in the same direction and at the same speed, the soft mirror performs a rotational motion;

[0011] When the first rotating body and the second rotating body rotate in the same direction at unequal speeds, the soft mirror performs a rotational motion and a bending and swinging motion at the end simultaneously.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The electric flexible bronchoscope of the present invention has two sets of transmission structures formed by two sets of motion control mechanisms and two coaxially connected rotating bodies on the flexible bronchoscope. By changing the motion mode of the two sets of transmission structures, automatic control is realized, which reduces the difficulty of doctors using the bronchoscope. Doctors do not need to hold the bronchoscope for operation like using a handheld bronchoscope, which greatly reduces the physical consumption of doctors. At the same time, automatic control has higher accuracy and can complete more complex bronchoscope examinations and operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of a partial cross-section structure (only the first transmission gear and the second transmission gear are cross-sectioned) of the electric flexible bronchoscope when the flexible end of the flexible bronchoscope is not bent according to an embodiment of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the motion control mechanism of the electric flexible bronchoscope according to an embodiment of the present invention;

[0017] Figure 3 It is a schematic structural diagram of a flexible endoscope of an electric flexible bronchoscope according to an embodiment of the present invention;

[0018] Figure 4 It is a schematic structural diagram of a part of the electric flexible bronchoscope before bending of the flexible end of the bronchoscope (the first driving mechanism and the second driving mechanism rotate in opposite directions) (only the first transmission gear and the second transmission gear are cut);

[0019] Figure 5 It is a schematic structural diagram of a portion of a bent end of an electric flexible bronchoscope (only the first transmission gear and the second transmission gear are cut apart) of the flexible end of the electric flexible bronchoscope according to an embodiment of the present invention;

[0020] Figure 6It is a schematic structural diagram of a part of a section (only the first transmission gear and the second transmission gear are sectioned) of the flexible end of the electric flexible bronchoscope according to an embodiment of the present invention before bending (the first driving mechanism and the second driving mechanism rotate in the same direction);

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of an electric flexible bronchoscope according to an embodiment of the present invention.

[0022] Wherein: 1. soft lens; 11. first rotating body; 110. convex column structure; 12. second rotating body; 2. motion control mechanism; 21. first motion control mechanism; 211. first driving mechanism; 212. first driving gear; 213. first transmission gear; 22. second motion control mechanism; 221. second driving mechanism; 222. second driving gear; 223. second transmission gear; 3. steel wire. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0024] Example:

[0025] See also Figures 1 to 7 The embodiment of the present invention is an electric flexible bronchoscope, comprising a flexible mirror 1, a motion control mechanism 2 and two steel wires 3. The flexible mirror 1 comprises a hose-shaped mirror body, the head end of which is also as shown in FIG. Figure 1 The upper end shown is provided with a first rotating body 11 and a second rotating body 12 which are coaxially connected. Figure 1 As shown, the first rotating body 11 is close to the head end of the soft lens 1, that is, Figure 1 The second rotating body 12 is a rotating body at the upper end of the soft lens 1, and the second rotating body 12 is a rotating body away from the head end of the soft lens 1. Figure 1 The lower end shown is bendable, i.e., a bendable portion is formed. The first rotating body 11 and the second rotating body 12 may or may not rotate relative to each other. The motion control mechanism 2 includes a first motion control mechanism 21 and a second motion control mechanism 22 that are coaxially and spaced apart, wherein the first motion control mechanism 21 is sleeved on the outer periphery of the first rotating body 11 and forms a transmission structure with the first rotating body 11, and the second motion control mechanism 22 is sleeved on the outer periphery of the second rotating body 12 and forms a transmission structure with the second rotating body 12. One end of the two steel wires 3 is also as shown Figure 1 The upper ends are respectively fixed on the left and right sides of the second rotating body 12, and the other ends are close to each other, that is, Figure 1The two steel wires shown in the figure are inclined downward through the through hole opened on the first rotating body 11 and extend to the end of the soft mirror 1 and are connected to the opposite sides of the inner wall of the bendable part. It should be noted that the two steel wires are parallel inside the hose and are not close together. By changing the movement mode of the two sets of transmission structures, the swing rotation and swing and rotation movement of the soft mirror 1 can be controlled. Figure 4 and Figure 5 As shown, when the first rotating body 11 and the second rotating body 12 rotate in opposite directions at the same speed, one of the two steel wires 3 stretches outwards and the other contracts inwards, so that the end of the soft lens 1 performs a bending and swinging motion. Figure 6 As shown, when the first rotating body 11 and the second rotating body 12 rotate in the same direction at the same speed, the soft lens 1 performs a rotational motion. When the first rotating body 11 and the second rotating body 12 rotate in the same direction at different speeds, the soft lens 1 performs a rotational motion and a bending and swaying motion at the end, that is, a swaying and rotational motion.

[0026] For details, see Figure 4 The first driving mechanism 211 rotates counterclockwise, driving the first driving gear 212 to rotate counterclockwise, causing the first transmission gear 213 to rotate clockwise, and the first rotating body 11 rotates clockwise along with the first transmission gear 213. The second driving mechanism 221 rotates clockwise, driving the second driving gear 222 to rotate clockwise, causing the second transmission gear 223 to rotate counterclockwise, and the second rotating body 12 rotates counterclockwise along with the second transmission gear 223. In this way, the rotation directions of the first rotating body 11 and the second rotating body 12 are different, causing one of the two steel wires 3 to stretch outwards and the other to shrink inwards, resulting in a Figure 5 The phenomenon that the end of the soft mirror 1 bends is the deflection of the soft bronchoscope. Similarly, the first driving mechanism 211 rotates clockwise and the second driving mechanism 221 rotates counterclockwise, which will also cause the soft bronchoscope to deflect. As long as the first rotating body 11 and the second rotating body 12 are controlled to rotate relative to each other, the end of the soft mirror 1 will bend and deflect.

[0027] See also Figure 6 , the first driving mechanism 211 and the second driving mechanism 221 rotate in the same direction at the same speed, which will cause the first rotating body 11 and the second rotating body 12 to rotate in the same direction at the same speed, that is, the first rotating body 11 and the second rotating body 12 do not rotate relative to each other, so the end of the soft endoscope 1 does not perform a yaw motion, and because the first rotating body 11 and the second rotating body 12 rotate in the same direction at the same speed, the first rotating body 11, the second rotating body 12, the steel wire 3 and the soft endoscope 1 perform an integral rotational motion. That is, the rotational motion of the soft bronchoscope. In addition, when the first driving mechanism 211 and the second driving mechanism 221 rotate in the same direction at different speeds, the first rotating body 11 and the second rotating body 12 will also rotate in the same direction at different speeds through their respective transmission mechanisms. This motion combines yaw and rotational motion, that is, it can achieve yaw and rotation at the same time.

[0028] The electric flexible bronchoscope of the embodiment of the present invention respectively forms two sets of transmission structures through two sets of motion control mechanisms and two coaxially connected rotating bodies on the flexible mirror 1. Automatic control is achieved by changing the motion mode of the two sets of transmission structures, which reduces the difficulty of doctors using the bronchoscope. Doctors do not need to hold the bronchoscope to operate it like using a handheld mirror, which greatly reduces the physical consumption of doctors. At the same time, automatic control has higher accuracy and can complete more complex bronchoscope examinations and operations.

[0029] According to some embodiments of the present invention, the first driving gear 212 and the second driving gear 222 have the same diameter. The first transmission gear 213 and the second transmission gear 223 have the same diameter.

[0030] According to some embodiments of the present invention, Figure 3 As shown, a protruding column structure 110 extending outward is respectively provided on the left and right sides of the second rotating body 12, and two steel wires 3 are respectively fixed on the corresponding protruding column structure 110. The protruding column structure 110 can be a winding wheel or a bolt, etc., and is not particularly limited.

[0031] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. An electric flexible bronchoscope, characterized in that: include: A soft mirror, the end of which is bendable, and the head end of which is provided with a first rotating body and a second rotating body which are coaxially connected; A motion control mechanism, comprising a first motion control mechanism and a second motion control mechanism coaxially and spaced apart, wherein the first motion control mechanism is sleeved on the outer periphery of the first rotating body and forms a transmission structure with the first rotating body, and the second motion control mechanism is sleeved on the outer periphery of the second rotating body and forms a transmission structure with the second rotating body; Two steel wires, one end of each of which is connected to two opposite sides of the second rotating body, and the other end of each of which is inserted into the first rotating body close to each other and extends in parallel to be connected to the end of the soft lens; When the first rotating body and the second rotating body rotate in opposite directions at a constant speed, one of the two steel wires is stretched outwards and the other is contracted inwards, so that the end of the soft mirror performs a bending and swinging motion; Control the rotation direction and speed of the first rotating body and the second rotating body by two sets of the transmission structures; When the first rotating body and the second rotating body rotate in the same direction and at the same speed, the first rotating body, the second rotating body, the steel wire and the soft lens rotate as a whole, and the soft lens rotates; When the first rotating body and the second rotating body rotate in the same direction at unequal speeds, the soft mirror performs a rotational motion and a bending and swinging motion at the end simultaneously.

2. The electric flexible bronchoscope according to claim 1, characterized in that: The first motion control mechanism comprises: a first driving mechanism; A first driving gear, disposed on a first driving shaft of the first driving mechanism and rotatable around the first driving shaft; The first transmission gear is coaxially sleeved on the outer periphery of the first rotating body and meshes with the first driving gear.

3. The electric flexible bronchoscope according to claim 2, characterized in that: The second motion control mechanism comprises: a second driving mechanism; A second driving gear, disposed on a second driving shaft of the second driving mechanism and rotatable around the second driving shaft; A second transmission gear, coaxially sleeved on the outer periphery of the second rotating body and meshing with the second driving gear; The second transmission gear and the first transmission gear are arranged along the same axis with an interval therebetween.

4. The electric flexible bronchoscope according to claim 3, characterized in that: The first driving mechanism and the second driving mechanism are motors.

5. The electric flexible bronchoscope according to claim 3, characterized in that: The first driving gear and the second driving gear have the same diameter, and the first transmission gear and the second transmission gear have the same diameter.

6. The electric flexible bronchoscope according to claim 1, characterized in that: The two opposite side walls of the second rotating body are respectively provided with convex column structures protruding outwards, and one ends of the two steel wires are respectively wound and fixed on the corresponding convex column structures.

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