Self-adaptive throat examination device for otolaryngology department

Abstract

The invention relates to the technical field of examination equipment for the otolaryngology department, in particular to a self-adaptive throat examination device for the otolaryngology department, which comprises a device main body, and a grab handle, a display screen and a probe are arranged on the device main body; the device is characterized in that the device main body is provided with a telescopic mechanism and a resistance-encountering triggering assembly; the telescopic mechanism comprises a telescopic rod and a linear driving assembly used for driving the telescopic rod to stretch out and draw back. The probe is arranged at the end, away from the grab handle, of the telescopic rod. And the resistance-encountering triggering assembly is arranged on the telescopic rod. The function of automatically controlling the probe to contract when the probe is pressed is achieved, the extension length of the probe is adjusted according to the condition of a patient through the telescopic capacity of the probe when the patient is examined, and then the probe adapts to patients of different age groups. In addition, through the arrangement of the resistance triggering assembly, the situation that the throat of the patient is injured due to shaking or other conditions of the probe in the examination process can be avoided, and the problem that the patient is injured due to the fact that the probe makes contact with the throat of the patient in the examination process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of otorhinolaryngology examination equipment, and specifically relates to a laryngeal adaptive examination device for otorhinolaryngology. Background Art

[0002] In the clinical practice of otorhinolaryngology, laryngeal examination techniques have evolved from the primary optical examination stage, that is, the traditional method of using a tongue depressor in combination with an indirect laryngoscope, with the limitations of the traditional laryngeal examination technology system, to the current electronic endoscopy stage, that is, an electronic laryngoscope system with a micro CMOS / CCD camera is introduced to observe the morphology of mucosal microvessels through high-definition imaging. However, clinical data shows that in cases of hyper secretion of mucus such as chronic pharyngitis and reflux laryngitis, during the continuous contact with mucus during the examination process, the lens contamination rate is relatively high, resulting in the need for repeated wiping and an extended examination time. And according to clinical trials, the incidence of nausea reflex in patients during the examination has also been consistently high, and it is also easy to cause mucosal damage.

[0003] In response to this, in the advanced designs, a micro electromagnetic suspension system is adopted, combined with real-time regulation by a distance sensor to ensure non-contact between the probe and the mucosa. However, the technical implementation is difficult, and there have been many related studies in the prior art. For example, the throat inflammation examination device and its examination method disclosed in Chinese invention patent CN117357051A spray drugs or disinfectants into the patient's throat through an atomizing nozzle to clean the throat mucus and prevent the mucus in the throat from adhering to the throat examination camera, so as to solve the problem of unclear images caused by oral mucus.

[0004] Another example is a transparent anti-adhesion liquid injection coating applied to the distal end of an endoscope disclosed in US patent US20190136070A1. This coating can prevent the field of view from being blurred and reduce the attachment of contaminants. At the same time, a detachable endoscope window assembly coated with the transparent anti-adhesion liquid injection coating is proposed, which can be installed at the distal end or the distal window of the endoscope to eliminate the problem of field of view occlusion. In addition, an endoscope system equipped with a micro camera is also disclosed, and the surface of its camera is also coated with this transparent anti-adhesion liquid injection coating, which can also solve the problem of relatively high lens contamination rate to a certain extent. At the same time, during the examination process of the existing examination device, due to jitter or misoperation by the operator, the probe may still come into contact with the patient's throat, causing discomfort to the patient and generating a nausea reflex. Especially when the patient's throat has inflammation or other diseases, it may be easier to cause mucosal damage when the patient has a nausea reflex. Summary of the Invention

[0005] I. Technical Problems to be Solved

[0006] The present invention is aimed at the above-mentioned defects in the prior art and specifically proposes an adaptive throat examination device for otolaryngology. The device body, telescopic mechanism and resistance trigger component solve the problem of patient injury caused by contact between the probe and the patient's throat during the examination.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, in a first aspect, the present invention provides an adaptive laryngeal examination device for otolaryngology, comprising a device body, on which a handle, a display screen and a probe are provided;

[0009] The device body is also provided with a telescopic mechanism and an obstruction triggering component;

[0010] The telescopic mechanism includes a telescopic rod and a linear drive assembly for driving the telescopic rod to perform telescopic movement. The probe is arranged at one end of the telescopic rod away from the handle, and an elastic rope connected to the device body is arranged at the other end of the telescopic rod; that is, through the telescopic ability of the probe, the extension length of the probe can be adjusted according to the patient's condition when examining the patient, so as to achieve the telescopic effect;

[0011] Furthermore, the resistance trigger component is arranged on the telescopic rod near the probe; when the resistance trigger component encounters resistance and is subjected to pressure, the resistance trigger component triggers the contraction of the telescopic rod. At this time, the telescopic mechanism controls the contraction of the telescopic rod through the elastic rope, that is, through the setting of the resistance trigger component, the effect of preventing the probe from damaging the patient's throat due to shaking or other situations during the examination process can be achieved.

[0012] Regarding the specific structure and working principle of the telescopic mechanism: the telescopic mechanism also includes a docking assembly, and the linear drive assembly is connected to the telescopic rod through the docking assembly; the docking assembly includes a first movable seat and a push block, and the first movable seat can reciprocate along the axis direction perpendicular to the telescopic rod. When the first movable seat abuts against the push block, the linear drive assembly drives the push block to move, thereby driving the telescopic rod to perform telescopic movement. The first movable seat is provided with a docking block and a first elastic member, and the two ends of the first elastic member are respectively connected to the first movable seat and the telescopic rod, and at least one roller is provided on the docking block, and the roller is connected to the push block in a rolling manner. The reciprocating movement of the docking block can be more convenient through the roller without obstruction, wherein the linear drive assembly includes a lead screw, a nut and a rotary driver; the lead screw is arranged on the push block; the nut can be rotatably arranged in the guide rail, the nut is threadedly connected to the lead screw, and the rotary driver is used to drive the nut to rotate.

[0013] That is, the first movable seat is reciprocated in a direction perpendicular to the axis of the telescopic rod to control the abutment or separation of the first movable seat and the push block, thereby realizing the switching of the telescopic mechanism to the drivable state or the separation state of the telescopic rod.

[0014] Furthermore, the device body further includes an auxiliary control mechanism, which includes a connection component and a first transmission component; the push block is in transmission connection with the linear drive component through the connection component. When the resistance-triggering component triggers the contraction of the telescopic rod and the docking component disconnects, and the first movable seat disengages from the push block, the connection component disconnects from the linear drive component, and the telescopic rod is in transmission connection with the push block through the first transmission component. That is, the clutch control of the transmission connection between the lead screw and the push block is realized through the auxiliary control mechanism.

[0015] More specifically, the first transmission component includes a mounting rod and a movable frame; the mounting rod is arranged on the push block, and a limiting block is provided at one end of the mounting rod away from the push block; the movable frame is slidably arranged on the mounting rod, and both ends of the second elastic member are connected to the movable frame and the limiting block respectively. The elastic cord needs to overcome the elastic force of the second elastic member to control the contraction of the telescopic rod. That is, the length of the mounting rod is set as the maximum contraction length during the resistance-induced contraction process, and at the same time, the elastic force of the second elastic member is also used to provide a thrust for the reset of the telescopic rod.

[0016] Among them, the connection component includes a mounting ring, a second movable seat and a push frame; the mounting ring is in transmission connection with the linear drive component and is movably arranged at the bottom of the push block. A fixed ring is provided on the second movable seat, and when the fixed ring abuts against the mounting ring, the rotation of the mounting ring is restricted;

[0017] A fourth elastic member is provided on the second movable seat, and both ends of the fourth elastic member are connected to the second movable seat and the push block respectively; the push frame is arranged on the first movable seat.

[0018] Regarding the specific structure and working principle of the resistance-triggering component: The resistance-triggering component includes a telescopic head and a buffer component; the telescopic head is connected to the telescopic rod through the buffer component, and a probe is arranged on the telescopic head; a second transmission component is provided on the telescopic rod, and the telescopic head is in transmission connection with the first movable seat through the second transmission component. When the telescopic head contracts, the second transmission component drives the first movable seat to contract inward in a direction perpendicular to the axis of the telescopic rod. At this time, the telescopic mechanism controls the contraction of the telescopic rod through the elastic cord.

[0019] The buffer component includes a guide rod and a third elastic member; the telescopic head is reciprocally movably arranged along the axial direction of the guide rod, and the telescopic head is movably connected to the telescopic rod through the guide rod. Both ends of the third elastic member are abutted against the telescopic head and the end face or end concave surface or end convex column of the telescopic rod respectively. The third elastic member has a relatively small elastic coefficient, and the resistance-induced contraction effect is more obvious.

[0020] Combined with the first aspect, a guide rail is further provided inside the device body. The guide rail is located outside the linear drive component and is used to accommodate or partially accommodate the telescopic mechanism and provide a guiding effect during the movement process; the push block is movably arranged along the guide rail, and the push block is in transmission connection with the driving end of the linear drive component. That is, the guide rail plays a guiding effect on the movement process of the entire telescopic mechanism.

[0021] In a second aspect, the second transmission assembly includes a transmission rod and a wedge block; the transmission rod is slidably mounted on the telescopic rod; the wedge block is disposed on the first movable seat, and one end of the transmission rod close to the first movable seat abuts against the wedge block.

[0022] Alternatively, the second transmission assembly includes a transmission rod; the transmission rod is slidably mounted on the telescopic rod; a wedge block abutting against the transmission rod is provided on the first movable seat, and the first movable seat is pushed to move in a direction perpendicular to the axis of the telescopic rod through the transmission rod.

[0023] That is, the second transmission assembly is used to transfer the action of the resistance-triggering assembly to the first movable seat, thereby switching the position state on the first movable seat.

[0024] In a third aspect, an elastic clamping member is provided on the guide rail, and a clamping groove cooperating with the elastic clamping member is provided on the outer wall of the telescopic rod; when the telescopic mechanism controls the telescopic rod to contract through the elastic cord, the step-by-step control adjustment is realized through the cooperation of the elastic clamping member and the clamping groove, and at the same time, the control of the contraction distance is realized.

[0025] Specifically, the elastic clamping member includes a spring and a clamping steel ball, and a corresponding accommodating groove is further opened on the guide rail. The clamping steel ball is abutted by the spring and then the clamping steel ball abuts against the clamping groove to realize the limit. And the accommodating groove is provided with a trapezoidal opening that gradually widens from the inside to the outside. At least 3 clamping grooves are uniformly arranged on the outer wall of the telescopic rod along the axis direction of the telescopic rod, and the clamping grooves are spherical concave grooves. In this way, the gear adjustment during contraction can be better realized.

[0026] Furthermore, the outer walls of the telescopic mechanism and the resistance-triggering assembly are integrally wrapped by a flexible transparent material to achieve a protective effect.

[0027] III. Beneficial Effects

[0028] Compared with the prior art, the present invention realizes the function of automatically controlling the contraction of the probe when the probe is pressed through the device body, the telescopic mechanism and the resistance-triggering assembly. Through the telescopic ability of the probe, when examining a patient, the extended length of the probe is adjusted according to the patient's condition, so as to adapt to patients of different ages. And through the setting of the resistance-triggering assembly, during the examination process, it can be avoided that the probe causes damage to the patient's throat due to jitter or other conditions, optimizing the patient's examination experience, and solving the problem that the patient is injured due to the contact between the probe and the patient's throat during the examination process.

[0029] Furthermore, the functions of controlling the contraction of the telescopic rod when the probe is pressed are realized through the telescopic head, the buffer assembly, the transmission assembly, and the docking assembly. When the probe is pressed, the buffer assembly contracts and disconnects the connection of the docking assembly to prevent the linear drive assembly from affecting the contraction of the telescopic rod. Then, the telescopic rod quickly contracts under the elastic force of the elastic cord, thereby achieving the effect of quickly controlling the contraction of the telescopic rod. At the same time, the linear drive assembly is prevented from affecting the contraction speed of the probe and causing discomfort to the patient. Also, when quickly contracting, in cooperation with the elastic clamping members on the guide rail, multi-stage contraction control is achieved, and adaptive control at the appropriate position is realized, further improving safety and also preventing direct contraction over a long distance when encountering resistance, thus improving the inspection efficiency.

[0030] The present invention also realizes the function of driving the telescopic rod to extend through the linear drive assembly via the movable seat and the push block. And the transmission connection between the linear drive assembly and the telescopic rod is controlled by the movement of the movable seat, achieving the effect of controlling the rapid contraction of the telescopic rod in cooperation with the elastic cord. In the working state, when the movable seat is in the extended state, the linear drive assembly controls the movement of the push block, and the push block pushes the docking block, thereby driving the telescopic rod to extend through the docking block. When the linear drive assembly controls the push block to move back, the telescopic rod gradually resets under the elastic force of the elastic cord, maintaining the abutment between the docking block and the push block. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective schematic view of the inspection device of the present invention installed on a workbench.

[0032] Figure 2 is a perspective schematic view of the inspection device of the present invention.

[0033] Figure 3 is a perspective schematic view of the telescopic mechanism, the resistance-triggering assembly, and the auxiliary control mechanism in the inspection device of the present invention.

[0034] Figure 4 is an exploded perspective schematic view of the telescopic mechanism, the resistance-triggering assembly, and the auxiliary control mechanism in the inspection device of the present invention.

[0035] Figure 5 is a perspective schematic view of the docking assembly in the inspection device of the present invention when the connection is disconnected.

[0036] Figure 6 is a perspective schematic view of the docking assembly in the inspection device of the present invention in the connected state.

[0037] Figure 7 is a perspective schematic view of the docking assembly and the connection assembly in the inspection device of the present invention when the connection is disconnected.

[0038] Figure 8 is a perspective schematic view of the linear drive assembly in the inspection device of the present invention.

[0039] Figure 9 is a three-dimensional schematic diagram of the connection component in the inspection device of the present invention in a connected state.

[0040] Figure 10 is a three-dimensional schematic diagram of the buffer component in the inspection device of the present invention.

[0041] Figure 11 is a three-dimensional schematic of the elastic clamping member in the inspection device of the present invention Figure 1 .

[0042] Figure 12 is a three-dimensional schematic diagram of the clamping groove structure in the inspection device of the present invention.

[0043] In the figure:

[0044] 1 is the device main body; 11 is the handle; 12 is the display screen; 13 is the probe;

[0045] 2 is the telescopic mechanism; 21 is the telescopic rod; 211 is the elastic cord; 22 is the linear drive component; 221 is the guide rail; 222 is the lead screw; 223 is the nut; 224 is the rotary drive; 23 is the docking component; 231 is the first movable seat; 2311 is the docking block; 2312 is the first elastic member; 2313 is the roller; 232 is the push block;

[0046] 3 is the resistance-triggering component; 31 is the telescopic head; 32 is the buffer component; 321 is the guide rod; 322 is the third elastic member; 33 is the second transmission component; 331 is the transmission rod; 332 is the wedge block;

[0047] 4 is the auxiliary control mechanism; 41 is the connection component; 411 is the mounting ring; 412 is the second movable seat; 4121 is the fixing ring; 4122 is the fourth elastic member; 413 is the push frame; 42 is the first transmission component; 421 is the mounting rod; 4211 is the limiting block; 422 is the movable frame; 4221 is the second elastic member; 4222 is the support rod;

[0048] 5 is the workbench;

[0049] 6 is the elastic clamping member; 61 is the spring; 62 is the clamping steel ball; 63 is the receiving groove;

[0050] 7 is the clamping groove. Specific embodiments

[0051] The following combines the accompanying drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0052] Embodiment 1:

[0053] AsFigures 1 to 3 As shown, the adaptive throat examination device for otolaryngology of this embodiment includes a device body 1, on which is provided a handle 11, a display screen 12 and a probe 13; the device body 1 is provided with a telescopic mechanism 2 and an obstruction trigger component 3; the telescopic mechanism 2 includes a telescopic rod 21 and a linear drive component 22 for driving the telescopic rod 21 to extend and retract, and the probe 13 is arranged at one end of the telescopic rod 21 away from the handle 11; the obstruction trigger component 3 is arranged on the telescopic rod 21; when the obstruction trigger component 3 encounters obstruction and is subjected to pressure, the telescopic mechanism 2 controls the telescopic rod 21 to retract.

[0054] This embodiment realizes the function of automatically controlling the retraction of the probe 13 when the probe 13 is under pressure through the device body 1, the telescopic mechanism 2 and the resistance trigger component 3. Through the telescopic structure of the probe 13, when examining the patient, the extension length of the probe 13 is adjusted according to the patient's condition, thereby adapting to patients of different age groups and different conditions. In addition, through the setting of the resistance trigger component 3, the probe 13 can be prevented from causing damage to the patient's throat due to shaking or other conditions during the examination process, optimizing the patient's examination experience, and solving the problem of the patient being injured due to the strong contact between the probe 13 and the patient's throat during the examination. The inspection device of this embodiment is set on the workbench 5. The probe 13 is provided with a camera and a nozzle for spraying medicine. During the inspection process, the operator holds the handle 11 on the device body 1, then extends the probe 13 into the patient's throat, shoots through the camera on the probe 13, and displays the shot image on the display screen 12. During the inspection process, the operator adjusts the position and angle of the probe 13 according to the impact of the shooting, and controls the telescopic rod 21 to extend and retract through the linear drive component 22, adjusts the depth of the probe 13, and then performs a comprehensive inspection of the patient's throat. As the operator adjusts the position of the probe 13, it is likely that the probe 13 will come into contact with the patient's throat, so an obstacle triggering component 3 is provided. When the obstacle triggering component 3 encounters an obstacle and is subjected to a certain pressure, the linear drive component 22 controls the telescopic rod 21 to contract, and the telescopic rod 21 drives the probe 13 to move, thereby separating the probe 13 from the patient's throat, thereby preventing the probe 13 from exerting excessive pressure on the patient's throat.

[0055] like Figures 2 to 4 As shown, the resistance trigger component 3 includes a telescopic head 31 and a buffer component 32; the telescopic head 31 is connected to the telescopic rod 21 through the buffer component 32, and the probe 13 is arranged on the telescopic head 31; the telescopic rod 21 is provided with an elastic rope 211 connected to the device body 1; the telescopic mechanism 2 includes a docking component 23, and the linear drive component 22 is transmission-connected to the telescopic rod 21 through the docking component 23.

[0056] In this embodiment, the telescopic head 31, the buffer assembly 32 and the docking assembly 23 are used to realize the function of controlling the contraction of the telescopic rod 21 when the probe 13 is pressed. When the probe 13 is pressed, the buffer assembly 32 contracts and disconnects the connection of the docking assembly 23, preventing the linear drive assembly 22 from affecting the contraction of the telescopic rod 21. Then, under the elastic force of the elastic cord 211, the telescopic rod 21 quickly contracts, thus achieving the effect of quickly controlling the contraction of the telescopic rod 21. At the same time, the linear drive assembly 22 is prevented from affecting the contraction speed of the probe 13, avoiding causing discomfort to the patient. In the working state, the linear drive assembly 22 controls the telescopic rod 21 to extend, and the probe 13 is used to examine the patient's throat. When the telescopic rod 21 extends, it pulls the elastic cord 211, and the elastic cord 211 is stretched and stores elastic potential energy. When the probe 13 is pressed, the buffer assembly 32 contracts and transfers the movement generated by the applied force to the docking assembly 23, disconnecting the connection of the docking assembly 23. At this time, the telescopic rod 21 is no longer under the thrust provided by the linear drive assembly 22 and quickly contracts under the elastic force of the elastic cord 211. The telescopic rod 21 drives the telescopic head 31 and the probe 13 to contract, preventing the probe 13 from pressing on the patient's throat and causing discomfort to the patient.

[0057] As Figures 4 to 6 shown, the docking assembly 23 includes a first movable seat 231 and a push block 232. The first movable seat 231 is movably arranged on the telescopic rod 21. A docking block 2311 and a first elastic member 2312 are provided on the first movable seat 231. Two ends of the first elastic member 2312 are respectively connected to the first movable seat 231 and the telescopic rod 21. The push block 232 is movably arranged in the device main body 1, and the push block 232 is in transmission connection with the driving end of the linear drive assembly 22.

[0058] In this embodiment, the first movable seat 231 and the push block 232 are used to realize the function of driving the telescopic rod 21 to extend through the linear drive assembly 22. And the transmission connection between the linear drive assembly 22 and the telescopic rod 21 is controlled by the movement of the first movable seat 231, and the elastic cord 211 is used to cooperate to achieve the effect of controlling the rapid contraction of the telescopic rod 21. In the working state, when the first movable seat 231 is in the extended state, the linear drive assembly 22 controls the movement of the push block 232, and the push block 232 pushes the docking block 2311, and then drives the telescopic rod 21 to extend through the docking block 2311. When the linear drive assembly 22 controls the push block 232 to move back, the telescopic rod 21 gradually resets under the elastic force of the elastic cord 211, and keeps the docking block 2311 in contact with the push block 232. When the probe 13 is pressed, the buffer assembly 32 contracts under the pressure, and transmits the movement generated by the force to the first movable seat 231. The first elastic member 2312 contracts under this acting force, and the docking block 2311 moves toward the axis direction of the telescopic rod 21, so that the docking block 2311 is separated from the push block 232. The push block 232 no longer applies pressure to the docking block 2311, and the telescopic rod 21 moves rapidly under the elastic force of the elastic cord 211, thereby achieving the effect of controlling the contraction of the telescopic rod 21.

[0059] As Figure 4 and Figure 5 shown, an auxiliary control mechanism 4 is provided on the device main body 1. The auxiliary control mechanism 4 includes a connection assembly 41 and a first transmission assembly 42; the push block 232 is in transmission connection with the linear drive assembly 22 through the connection assembly 41. When the docking assembly 23 is disconnected, the connection assembly 41 is disconnected, and the telescopic rod 21 is in transmission connection with the push block 232 through the first transmission assembly 42.

[0060] In this embodiment, the connection assembly 41 and the first transmission assembly 42 are used to realize the function of automatically controlling the reset of the push block 232 when the probe 13 is pressed. The connection assembly 41 is arranged on the push block 232. When the probe 13 is pressed, the resistance-triggering assembly 3 controls the movement of the first movable seat 231, so that the push block 232 is separated from the first movable seat 231. At the same time, the connection assembly 41 is disconnected. Then, the telescopic rod 21 rapidly contracts under the elastic force of the elastic cord 211, and the telescopic rod 21 drives the push block 232 to move through the first transmission assembly 42. The reset of the push block 232 is controlled while the telescopic rod 21 contracts.

[0061] As Figure 5 and Figure 6 shown, the first transmission assembly 42 includes a mounting rod 421 and a movable frame 422; the mounting rod 421 is arranged on the push block 232, and a limiting block 4211 is provided at one end of the mounting rod 421 away from the push block 232; the movable frame 422 is slidably arranged on the mounting rod 421, and both ends of the second elastic member 4221 are connected to the movable frame 422 and the limiting block 4211 respectively.

[0062] In this embodiment, the function of pushing the push block 232 to move when the telescopic rod 21 contracts is achieved through the mounting rod 421 and the movable frame 422. A support rod 4222 is provided on the movable frame 422. When the docking assembly 23 is disconnected, the first movable seat 231 drives the docking block 2311 to move, and the docking block 2311 is separated from the push block 232. At this time, the connection assembly 41 also disconnects the transmission connection between the linear drive assembly 22 and the push block 232. At this time, the docking block 2311 is connected to the support rod 4222 on the movable frame 422. When the docking block 2311 moves, it pushes the support rod 4222 and the movable frame 422 to move. The movable frame 422 drives the push block 232 to move, and then pushes the push block 232 to reset when the telescopic rod 21 contracts.

[0063] As Figure 5 , Figure 7 and Figure 9 shown, the connection assembly 41 includes a mounting ring 411, a second movable seat 412, and a push frame 413; the mounting ring 411 is in transmission connection with the linear drive assembly 22; the second movable seat 412 is movably arranged on the push block 232. A fixed ring 4121 is provided on the second movable seat 412. When the fixed ring 4121 abuts against the mounting ring 411, the rotation of the mounting ring 411 is restricted; a fourth elastic member 4122 is provided on the second movable seat 412. The two ends of the fourth elastic member 4122 are respectively connected to the second movable seat 412 and the push block 232. The fourth elastic member 4122 is preferably a gas spring with a piston rod. The push frame 413 is arranged on the first movable seat 231.

[0064] In this embodiment, the control function of the linear drive assembly 22 being drivingly connected to the push block 232 is achieved through the mounting ring 411, the second movable seat 412, and the push frame 413. The mounting ring 411 is connected to the lead screw 222. The second movable seat 412 is sleeved on the lead screw 222, and there is a clearance between the lead screw 222 and the inner wall of the second movable seat 412, so they do not interfere with each other. And the mounting ring 411 is rotatably arranged on the push block 232. When the docking block 2311 is in the extended state under the elastic force of the first elastic member 2312, the docking block 2311 abuts against the push block 232. The push frame 413 on the first movable seat 231 pushes the second movable seat 412, and the second movable seat 412 moves upward under the pressure, so that the fixing ring 4121 on the second movable seat 412 abuts against the mounting ring 411, thereby restricting the rotation of the mounting ring 411 through the fixing ring 4121. At this time, the operator sends a signal to the rotary driver 224 through the controller. After receiving the signal, the rotary driver 224 drives the nut 223 to rotate through the pulley and the transmission belt. Since the lead screw 222 is connected to the mounting ring 411, the rotation of the lead screw 222 is restricted. When the nut 223 rotates, it drives the lead screw 222 threadedly connected thereto to move, and drives the push block 232 to move through the lead screw 222. When the probe 13 is pressed, the obstruction trigger assembly 3 controls the first movable seat 231 to contract, so that the docking block 2311 is separated from the push block 232. When the push frame 413 is separated from the second movable seat 412, the fourth elastic member 4122 controls the separation of the second movable seat 412 from the mounting ring 411. Specifically, the first movable seat 231 drives the push frame 413 to move, so that the push frame 413 is separated from the second movable seat 412. The second movable seat 412 moves in a direction away from the mounting ring 411 under the elastic force of the fourth elastic member 4122, and then the mounting ring 411 is separated from the fixing ring 4121, disconnecting the connection of the connection assembly 41. The docking block 2311 contacts the support rod 4222 on the movable frame 422, and then pushes the support rod 4222 and the movable frame 422 to move. The second elastic member 4221 contracts under the pressure, and then through the elastic force of the second elastic member 4221 acting on the limit block 4211, the limit block 4211 and the mounting rod 421 transmit the thrust to the push block 232. Since the lead screw 222 is arranged on the push block 232 through the mounting ring 411, when the push block 232 moves under the abutting action of the second elastic member 4221, the lead screw 222 and the mounting ring 411 rotate under the thrust, avoiding the influence of the nut 223 on the movement of the lead screw 222 and the push block 232, and achieving the reset of the mounting rod 421 and the push block 232.

[0065] As Figure 4 and Figure 10As shown, the buffer assembly 32 includes a guide rod 321 and a third elastic member 322. The guide rod 321 is disposed on the telescopic head 31, and two ends of the third elastic member 322 are respectively connected to the telescopic head 31 and the telescopic rod 21. A second transmission assembly 33 is provided on the telescopic rod 21, and the telescopic head 31 is in transmission connection with the first movable seat 231 through the second transmission assembly 33. Among them, the telescopic head 31 is reciprocally movably disposed along the axial direction of the guide rod 321, and the telescopic head 31 is movably connected to the telescopic rod 21 through the guide rod 321. Two ends of the third elastic member 322 respectively abut against the end face, end concave surface or end convex column of the telescopic head 31 and the telescopic rod 21. The third elastic member 322 is a spring with a relatively small elastic coefficient, and the effect of contraction when encountering resistance is more obvious.

[0066] In this embodiment, the functions of connecting the telescopic head 31 and the telescopic rod 21 are realized through the guide rod 321, the third elastic member 322 and the second transmission assembly 33. When the probe 13 on the telescopic head 31 is pressed, the telescopic head 31 moves in the direction close to the telescopic rod 21 under the action of the pressure, and at the same time, the third elastic member 322 contracts under the action of the pressure. And the telescopic head 31 drives the first movable seat 231 to move through the second transmission assembly 33, and the first elastic member 2312 contracts under the extrusion action, and then the docking block 2311 is separated from the push block 232, disconnecting the connection of the docking assembly 23. The telescopic rod 21 quickly contracts under the elastic force of the elastic cord 211, avoiding damage to the patient's throat by the telescopic head 31, and resetting under the elastic force of the third elastic member 322 after the telescopic head 31 is separated from the patient's throat. The first movable seat 231 has a tendency to extend under the elastic force of the first elastic member 2312, and then cooperates with the push block 232 again, and the push frame 413 on the first movable seat 231 pushes the second movable seat 412, and the connection assembly 41 is again converted into a connected state, and the telescopic rod 21 stops the contraction action.

[0067] As Figure 5 and Figure 6 shown, the second transmission assembly 33 includes a transmission rod 331 and a wedge block 332. The transmission rod 331 is slidably installed on the telescopic rod 21. Only a part of the structure of the transmission rod 331 is shown in Figure 10 , and in combination with Figure 6 , the other end of the transmission rod 331 abuts against the wedge block 332. The wedge block 332 is disposed on the first movable seat 231, and one end of the transmission rod 331 close to the first movable seat 231 abuts against the wedge block 332.

[0068] In this embodiment, the function of controlling the movement of the first movable seat 231 is achieved through the transmission rod 331 and the wedge block 332. In the working state, when the rear of the telescopic head 31 is pressed, the telescopic head 31 moves towards the telescopic rod 21, thereby pushing the transmission rod 331 to move. One end of the transmission rod 331 close to the wedge block 332 applies pressure to the wedge block 332, and the first movable seat 231 is pushed to move through the wedge block 332. The first elastic member 2312 contracts under this acting force, causing the first movable seat 231 to move towards the axis opposite to the telescopic rod 21, so that the docking block 2311 is separated from the push block 232.

[0069] The outer walls of the telescopic mechanism 2 and the resistance-triggering component 3 are integrally wrapped by a flexible transparent material, which plays a protective role without affecting the realization of the contraction action.

[0070] Embodiment 2:

[0071] As Figure 3 、 Figure 4 and Figure 8 , the specific structure of the linear drive assembly 22 is disclosed in this embodiment, including a guide rail 221, a lead screw 222, a nut 223, and a rotary driver 224; the guide rail 221 is arranged in the device main body 1, and the lead screw 222 is arranged on the push block 232; the nut 223 is rotatably arranged on the guide rail 221, the nut 223 is threadedly connected to the lead screw 222, and the rotary driver 224 is used to drive the nut 223 to rotate.

[0072] In this embodiment, the function of driving the push block 232 to move is achieved through the guide rail 221, the lead screw 222, the nut 223, and the rotary driver 224. The rotary driver 224 is preferably a micro motor. A controller for human-computer interaction is provided on the device main body 1, and the rotary driver 224 is electrically connected to the controller. Belt wheels are sleeved on both the driving end of the rotary driver 224 and the nut 223, and the two belt wheels are connected by a transmission belt. In the working state, when the connection assembly 41 is in the connected state, the operator sends a signal to the rotary driver 224 through the controller. After receiving the signal, the rotary driver 224 drives the nut 223 to rotate through the belt wheels and the transmission belt. The nut 223 drives the lead screw 222 connected to it in a threaded manner to move, and then drives the push block 232 to move through the lead screw 222. The push block 232 pushes the docking block 2311 to move, thereby controlling the telescopic movement of the telescopic rod 21. Therefore, through the lead screw transmission structure and precise thread processing, it is relatively easy to achieve a linear displacement accuracy of the micron level, such as a ball screw, and direct transmission without an intermediate conversion mechanism can reduce error accumulation and is more suitable for the medical device for throat detection in this embodiment.

[0073] Embodiment 3:

[0074] Compared with Embodiment 1, in this embodiment, the second transmission assembly includes a transmission rod 331; the transmission rod 331 is slidably mounted on the telescopic rod; a wedge block 332, or a wedge-shaped surface, which abuts against the transmission rod, is provided on the first movable seat. The transmission rod 331 is in cooperation with it through the corresponding wedge-shaped surface, or is in abutting cooperation with the wedge block 332 by adopting a roller structure. The first movable seat is pushed by the transmission rod to move in a direction perpendicular to the axis of the telescopic rod to achieve a better transmission effect. Moreover, a cylindrical structure design can be adopted between the transmission rod and the telescopic rod, and the transmission sensitivity can be further improved through lubrication.

[0075] Embodiment 4:

[0076] Compared with Embodiment 1, as Figure 5 and Figure 6 shown, a roller 2313 is rotatably provided on the docking block 2311, and the roller 2313 is in rolling connection with the push block 232. In this embodiment, the function of reducing the frictional force on the push block 232 when the first movable seat 231 moves is realized through the roller 2313. When the resistance-triggering assembly 3 controls the movement of the first movable seat 231, since there is an acting force between the push block 232 and the first movable seat 231, for this reason, the roller 2313 is provided to replace the docking block 2311 to abut against the push block 232. When the first movable seat 231 moves, it drives the docking block 2311 and the roller 2313 to move. The roller 2313 rolls on the surface of the push block 232, replacing sliding friction with rolling friction, improving the running stability of the device while reducing the wear on the push block 232 and extending the service life of the parts.

[0077] Embodiment 5:

[0078] Compared with Embodiment 1, as Figure 11 and Figure 12 shown, an elastic clamping member 6 is provided on the guide rail 221, and a clamping groove 7 that cooperates with the elastic clamping member 6 is provided on the outer wall of the telescopic rod 21; when the telescopic mechanism 2 controls the telescopic rod 21 to contract through the elastic cord 211, the paragraphic control adjustment is realized through the cooperation of the elastic clamping member 6 and the clamping groove 7, and at the same time, the control of the contraction distance is realized.

[0079] The elastic clamping member 6 includes a spring 61 and a clamping steel ball 62. A corresponding receiving groove 63 is also opened on the guide rail 221. The clamping steel ball 62 is abutted by the spring 61 and then abuts against the clamping groove 7 to achieve limiting. At least 3 clamping grooves 7 are evenly distributed on the outer wall of the telescopic rod 21 along the axis of the telescopic rod 21. The clamping groove 7 is a spherical groove. In this way, the practicability of the inspection device in this embodiment during high-frequency detection can be further improved, that is, by setting an appropriate contraction distance to provide the inspection efficiency.

[0080] Further, as Figure 11As shown, the receiving groove 63 is provided with a trapezoidal opening that gradually widens from the inside to the outside, which is more convenient for the cooperation of clamping the steel ball 62 with the receiving groove 63 and easier to achieve limiting.

[0081] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An adaptable laryngeal examination device for otolaryngology, comprising a device main body (1), on which a handle (11), a display screen (12) and a probe (13) are provided; It is characterized in that The device main body (1) is further provided with a telescopic mechanism (2) and a resistance-triggering component (3); The telescopic mechanism (2) includes a telescopic rod (21) and a linear drive component (22) for driving the telescopic rod (21) to perform telescopic movement. The probe (13) is arranged at one end of the telescopic rod (21) away from the handle (11), and an elastic cord (211) connected to the device main body (1) is arranged at the other end of the telescopic rod (21); The resistance-triggering component (3) is arranged at a position on the telescopic rod (21) close to the probe (13); when the resistance-triggering component (3) is blocked and subjected to pressure, the resistance-triggering component (3) triggers the contraction of the telescopic rod (21). At this time, the telescopic mechanism (2) controls the contraction of the telescopic rod (21) through the elastic cord (211).

2. The laryngeal adaptive examination device for otorhinolaryngology according to claim 1, characterized in that, The telescopic mechanism (2) further includes a docking component (23), and the linear drive component (22) is in transmission connection with the telescopic rod (21) through the docking component (23); The docking component (23) includes a first movable seat (231) and a push block (232), and the first movable seat (231) can reciprocate in a direction perpendicular to the axis of the telescopic rod (21); When the first movable seat (231) abuts against the push block (232), the linear drive component (22) drives the push block (232) to move, thereby driving the telescopic rod (21) to perform telescopic movement.

3. The laryngeal self - adapting inspection device for otorhinolaryngology according to claim 2, characterized in that, The resistance-triggering component (3) includes a telescopic head (31) and a buffer component (32); The telescopic head (31) is connected to the telescopic rod (21) through the buffer component (32), and the probe (13) is arranged on the telescopic head (31); A second transmission component (33) is arranged on the telescopic rod (21). The telescopic head (31) is in transmission connection with the first movable seat (231) through the second transmission component (33). When the telescopic head (31) contracts, the second transmission component (33) drives the first movable seat (231) to contract inward in a direction perpendicular to the axis of the telescopic rod (21). At this time, the telescopic mechanism (2) controls the contraction of the telescopic rod (21) through the elastic cord (211).

4. An adaptive laryngeal examination device for otolaryngology according to claim 2, characterized in that, A docking block (2311) and a first elastic member (2312) are arranged on the first movable seat (231), and two ends of the first elastic member (2312) are respectively connected to the first movable seat (231) and the telescopic rod (21).

5. An adaptive laryngeal examination device for otolaryngology according to claim 2, characterized in that, A guide rail (221) is further arranged inside the device main body (1). The guide rail (221) is located outside the linear drive component (22), and the guide rail (221) is used to accommodate or partially accommodate the telescopic mechanism (2) and provide a guiding function during the movement process; The push block (232) is movably arranged along the guide rail (221), and the push block (232) is in transmission connection with the drive end of the linear drive component (22).

6. An adaptive laryngeal examination device for otolaryngology according to claim 2, characterized in that, The device main body (1) further includes an auxiliary control mechanism (4), and the auxiliary control mechanism (4) includes a connection component (41) and a first transmission component (42); The pushing block (232) is in transmission connection with the linear drive assembly (22) through the connection assembly (41). When the resistance-triggering assembly (3) triggers the contraction of the telescopic rod (21), the docking assembly (23) disconnects. When the first movable seat (231) disengages from the pushing block (232), the connection assembly (41) disconnects from the transmission of the linear drive assembly (22), and the telescopic rod (21) is in transmission connection with the pushing block (232) through the first transmission assembly (42).

7. An adaptive laryngeal examination device for otolaryngology according to claim 6, characterized in that, The first transmission assembly (42) includes a mounting rod (421) and a movable frame (422); The mounting rod (421) is arranged on the pushing block (232), and a limit block (4211) is provided at one end of the mounting rod (421) away from the pushing block (232); The movable frame (422) is slidably arranged on the mounting rod (421). The two ends of the second elastic member (4221) are respectively connected to the movable frame (422) and the limit block (4211). The elastic cord (211) needs to overcome the elastic force of the second elastic member (4221) to control the contraction of the telescopic rod (21).

8. An adaptive laryngeal examination device for otolaryngology according to claim 3, characterized in that, The buffer assembly (32) includes a guide rod (321) and a third elastic member (322); The telescopic head (31) is arranged to reciprocate axially along the guide rod (321), and the telescopic head (31) is movably connected to the telescopic rod (21) through the guide rod (321). The two ends of the third elastic member (322) are respectively in contact with the telescopic head (31) and the end face or end concave surface or end convex post of the telescopic rod (21).

9. The laryngeal self-adaptive examination device for otolaryngology according to claim 3, characterized in that, The second transmission assembly (33) includes a transmission rod (331) and a wedge block (332); The transmission rod (331) is slidably mounted on the telescopic rod (21); The wedge block (332) is arranged on the first movable seat (231), and one end of the transmission rod (331) close to the first movable seat (231) is in contact with the wedge block (332).

10. The laryngeal adaptive examination device for otorhinolaryngology according to claim 3, characterized in that, The second transmission assembly (33) includes a transmission rod (331); The transmission rod (331) is slidably mounted on the telescopic rod (21); A wedge block (332) in contact with the transmission rod (331) is provided on the first movable seat (231), and the first movable seat (231) is pushed to move in a direction perpendicular to the axis of the telescopic rod (21) through the transmission rod (331).

11. An adaptive laryngeal examination device for otolaryngology according to claim 5, characterized in that, The linear drive assembly (22) includes a lead screw (222), a nut (223) and a rotary driver (224); The lead screw (222) is arranged on the pushing block (232); the nut (223) is rotatably arranged in the guide rail (221), the nut (223) is threadedly connected to the lead screw (222), and the rotary driver (224) is used to drive the nut (223) to rotate.

12. The laryngeal adaptive examination device for otorhinolaryngology according to claim 6, characterized in that, The connection assembly (41) includes a mounting ring (411), a second movable seat (412) and a pushing frame (413); The mounting ring (411) is in transmission connection with the linear drive assembly (22) and is movably arranged at the bottom of the pushing block (232). A fixing ring (4121) is provided on the second movable seat (412). When the fixing ring (4121) is in contact with the mounting ring (411), the rotation of the mounting ring (411) is restricted; A fourth elastic member (4122) is provided on the second movable seat (412), and both ends of the fourth elastic member (4122) are respectively connected to the second movable seat (412) and the push block (232); a push frame (413) is arranged on the first movable seat (231).

13. The laryngeal adaptive examination device for otolaryngology according to claim 4, wherein At least one roller (2313) is provided on the docking block (2311), and the roller (2313) is in rolling connection with the push block (232).

14. An adaptive laryngeal examination device for otolaryngology according to claim 5, characterized in that, An elastic clamping member (6) is provided on the guide rail (221), and a clamping groove (7) cooperating with the elastic clamping member (6) is provided on the outer wall of the telescopic rod (21); When the telescopic mechanism (2) controls the telescopic rod (21) to contract through the elastic cord (211), the paragraph control adjustment is realized through the cooperation of the elastic clamping member (6) and the clamping groove (7), and at the same time, the control of the contraction distance is realized.

15. An adaptive laryngeal examination device for otolaryngology according to claim 14, characterized in that, The elastic clamping member (6) includes a spring (61) and a clamping steel ball (62), and a corresponding receiving groove (63) is further formed on the guide rail (221). The clamping steel ball (62) is abutted by the spring (61) so that the clamping steel ball (62) abuts against the clamping groove (7) to realize the limit.

16. An adaptive laryngeal examination device for otolaryngology according to claim 15, characterized in that, The receiving groove (63) is provided with a trapezoidal opening that gradually widens from the inside to the outside.

17. An adaptive laryngeal examination device for otolaryngology according to claim 14, characterized in that, At least 3 clamping grooves (7) are evenly distributed on the outer wall of the telescopic rod (21) along the axial direction of the telescopic rod (21), and the clamping grooves (7) are spherical grooves.

18. An adaptive laryngeal examination device for otolaryngology according to claim 1, characterized in that, The outer walls of the telescopic mechanism (2) and the obstacle-triggered assembly (3) are integrally wrapped by a flexible transparent material.

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