Ear-nose-throat operation demonstration device

Abstract

The invention belongs to the field of medical teaching instruments, and particularly provides an ear-nose-throat operation demonstration device which comprises a base, a supporting table and operating forceps, a tissue simulation cavity is formed in the top of the supporting table, a tissue placement ring capable of being rotationally adjusted is arranged in the tissue simulation cavity, and a to-be-cut assembly is arranged on the tissue placement ring in a magnetic attraction mode. The expansion state of the to-be-cut-off assembly is achieved through the control valve assembly. Meanwhile, when the operating forceps demonstrate pressure application, on one hand, the air pressure change visually quantifies the clamping force through a pressure display tube scale plate, and on the other hand, the air pressure change is transmitted to a guide rail through an air pipeline to push a pressing rod, so that an elastic arc plate generates gradient increasing closing resistance, and visual pressure feedback and touch resistance perception in a real operation are synchronously simulated.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and specifically refers to an otolaryngology surgical demonstration device. Background Art

[0002] The ear, nose and throat include parts such as the ear, nose, and throat, which are some parts of the human body that are more prone to diseases. When teaching otolaryngology, otolaryngology teaching models are required. Existing surgical simulation devices mostly adopt a combination of mechanically fixed lesion modules and electronic sensors, and there are the following technical limitations: (1) In traditional surgical demonstration devices, the switching of diseased tissues is time-consuming and laborious, and there is no timely feedback method for the diseased tissues during the demonstration operation; (2) The pressure feedback system using numerical prompts on an electronic display lacks tactile resistance simulation. Students cannot perceive the progressive resistance change of tissues during the closing process of the instrument, which is likely to lead to improper force application during clinical operations. Summary of the Invention

[0003] The present invention overcomes the deficiencies of the prior art and provides an otolaryngology surgical demonstration device. Through a pneumatic linkage feedback mechanism, it realizes operation perception simulation. A rotatable and adjustable modular lesion unit is arranged in a tissue simulation cavity, and in cooperation with a control valve assembly, it realizes the rapid switching of the expansion state of diseased tissues. Combining a rotatable support platform structure and a magnetic module assembly, it supports the rapid scene switching of multiple lesion positions and multiple surgical angles; when the surgical forceps apply pressure, the pneumatic change is visualized and quantified through the scale plate of the pressure display tube. On the other hand, it is conducted through an air duct to a catheter to push a pressure rod, so that an elastic arc plate generates a gradually increasing closing resistance, simulating the tissue compression characteristics in real surgery.

[0004] The technical solution adopted by the present invention is as follows: This solution provides an otolaryngology surgical demonstration device, including a base and a support platform; the support platform is fixedly arranged on the top wall of the base, providing a flexible observation angle and an operation space to enhance the demonstration effect. A tissue simulation cavity is fixedly arranged on the top of the support platform to simulate the surgical operation environment. An air storage groove is formed on the inner circumferential wall of the tissue simulation cavity to provide a gas source. A tissue placement ring is rotatably connected to the inner wall of the air storage groove, facilitating the demonstrator to adjust the position of the simulated tissue as needed. Installation grooves are circumferentially arranged on the inner circumferential wall of the tissue placement ring, and the installation grooves are connected to the air storage groove in a through manner. A control valve assembly is nested in the installation grooves to control the air flow path. A to-be-excised component is magnetically connected to the notch of the installation groove to simulate the tissue to be excised. An air duct is fixedly arranged on the outer circumferential wall of the tissue simulation cavity. One end of the air duct is fixedly connected to the air storage groove in a through manner, and the other end of the air duct is connected to a surgical forceps in a through manner, connecting the air storage groove and the handle of the surgical forceps to transmit air flow. A pressure feedback component is arranged on the handle of the surgical forceps to provide an intuitive pressure feedback feeling for the demonstrator.

[0005] Further, the control valve assembly includes a fixed air flow ring, a sliding air flow ring, a valve rod, and a first spring; the fixed air flow ring is nested and fixedly arranged on the inner circumferential wall of the installation groove to provide a fixed path for the air flow. The sliding air flow ring is slidably arranged on the inner circumferential wall of the installation groove. The valve rod is nested and fixedly arranged in the sliding air flow ring. The top end of the valve rod passes through the fixed air flow ring, and a baffle is fixedly arranged at the top end of the valve rod to control the opening and closing of the air flow by sliding. The first spring is sleeved on the valve rod, and the two ends of the first spring are respectively fixedly connected to the bottom wall of the fixed air flow ring and the top wall of the sliding air flow ring.

[0006] Further, the to-be-excised component includes an electromagnetic fixing block, a trigger protrusion, and a simulation airbag; the electromagnetic fixing block is magnetically adsorbed at the notch end of the installation groove to provide a quick fixing and releasing method. An air flow through groove is formed on the top wall of the electromagnetic fixing block. The trigger protrusion is coaxially nested and fixedly arranged in the air flow through groove to realize the automatic control of the valve rod. The simulation airbag is fixedly arranged at the bottom end of the electromagnetic fixing block.

[0007] Further, the pressure feedback component includes a catheter, a pressure rod, and an elastic arc plate; the catheter is fixedly arranged on any one of the handles of the surgical forceps, one end of the catheter close to the tissue simulation cavity is fixedly connected to the air duct in a through manner to provide a closed sliding track, the pressure rod is slidably nested in the catheter and one end extends out of the catheter to provide mechanical feedback, one end of the elastic arc plate is fixedly connected to the pressure rod, and the other end of the elastic arc plate is fixedly connected to the side wall of the other handle of the surgical forceps to provide a reaction force through elastic deformation and simulate the resistance of the tissue to the surgical instrument during the operation.

[0008] Further, a rotating ring plate is fixedly arranged on the inner circumferential wall of the tissue placement ring, and one end of the rotating ring plate extends outside the tissue simulation cavity to facilitate the demonstrator to adjust the tissue placement ring.

[0009] Further, the support platform includes a support rod body, a connecting platform, and a rotating mounting platform; the support rod body is fixedly arranged at the top end of the base to provide height and stability for the support platform, the connecting platform is hinged to the top end of the support rod body, the rotating mounting platform is rotatably connected to the top end of the connecting platform, and the tissue simulation cavity is fixedly arranged on the top wall of the rotating mounting platform to provide an adjustment function and can adapt to the height or viewing angle requirements of different operators.

[0010] Further, a pressure display tube is fixedly arranged on the outer circumferential wall of the tissue simulation cavity to provide visual pressure readings for teaching and evaluation. The bottom end of the pressure display tube is connected to the air storage tank in a through manner. A second spring is fixedly arranged on the inner top wall of the pressure display tube, and a scale plate is fixedly connected to the bottom end of the second spring. The compression of the spring shows the pressure magnitude to directly display the clamping force of the surgical forceps on the simulated tissue.

[0011] The beneficial effects achieved by the present invention with the above structure are as follows: (1) After the battery powers the electromagnetic fixing block, the trigger protrusion pushes the valve rod to move the baffle away from the fixed air flow ring, conducting the air flow channel. The gas in the air storage tank enters the simulation airbag to make it bulge to simulate the diseased tissue. With the transparent pressure display tube, when the simulation airbag is compressed and the gas flows back to the air storage tank to exert pressure on the scale plate, the clamping force can be clearly demonstrated from the position of the scale plate, providing intuitive pressure data reference for the viewer, better understanding the change of the surgical operation force, helping the trainee accurately master the force threshold of the instrument control, and avoiding the risk of excessive pressure in the clinical operation; (2) While the simulation airbag is compressed, the gas flowing back exerts pressure on the pressure rod in the catheter, and the pressure rod then exerts pressure on the elastic arc plate, so that a greater force is required for the handle to continue to close, simulating the resistance of the tissue to the surgical instrument during the operation and making the demonstration closer to the actual surgical operation feeling; (3) The electromagnetic fixing block is magnetically adsorbed at the notch end of the installation groove body, which is convenient for quickly installing and disassembling the component to be excised, improves the demonstration efficiency, and can quickly replace the components to be excised in different states to simulate various surgical situations. At the same time, the linkage design of the ion simulation rod and the touch switch realizes the complete demonstration of the standard surgical process. (4) The position of the component to be excised can be flexibly adjusted by using the tissue placement ring connected by rotation. The tissue simulation cavity can rotate around the connecting platform and the rotating installation platform to change the opening direction, which is convenient for the demonstrator to display the surgical operation from different angles, comprehensively simulates the treatment of tissues in different positions in real surgery, supports the three-dimensional demonstration of multiple angles and multiple lesion states, and enables trainees to perform tactile and visual training in an environment close to real tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of an otolaryngology surgical demonstration device proposed by the present invention; Figure 2 is a schematic structural diagram of the support platform proposed by the present invention; Figure 3 is a schematic cross-sectional structure diagram of the tissue simulation cavity and the surgical forceps proposed by the present invention; Figure 4 is Figure 3 the partial enlarged view at A in Figure 5 is a schematic three-dimensional structure diagram of the tissue simulation cavity proposed by the present invention; Figure 6 is a schematic cross-sectional structure diagram of the tissue simulation cavity proposed by the present invention; Figure 7 is Figure 6 the partial enlarged view at B in Figure 8 is Figure 6 the partial enlarged view at C in Figure 9 is a schematic internal structure diagram of the component to be excised proposed by the present invention; Figure 10 is a schematic cross-sectional structure diagram of the tissue placement ring and the rotating ring plate proposed by the present invention.

[0013] Among them, 1. Base, 2. Support platform, 21. Support rod body, 22. Connection platform, 23. Rotating mounting platform, 3. Surgical forceps, 31. Pressure feedback component, 311. Catheter, 312. Pressing rod, 313. Elastic arc plate, 4. Tissue simulation cavity, 41. Air storage tank, 42. Tissue placement ring, 421. Rotating ring plate, 43. Installation groove body, 44. Air duct, 5. Control valve component, 51. Fixed air flow ring, 52. Sliding air flow ring, 53. Valve rod, 54. First spring, 55. Baffle plate, 6. Component to be excised, 61. Electromagnetic fixing block, 62. Trigger protrusion, 63. Battery, 64. Simulation airbag, 65. Air flow passage groove, 66. Power supply installation groove, 67. Touch switch, 7. Pressure display tube, 71. Second spring, 72. Scale plate, 8. Plasma simulation rod, 81. Connecting rope.

[0014] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. Specific embodiments

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0016] Embodiment 1: Please refer to Figure 1 、 Figure 2 and Figures 5 - 10, this embodiment provides an otolaryngology surgical demonstration device, including a base 1 and a support platform 2; the support platform 2 is fixedly arranged on the top wall of the base 1; the support platform 2 includes a support rod body 21, a connection platform 22 and a rotary mounting platform 23; the support rod body 21 is fixedly arranged at the top of the base 1, the connection platform 22 is hinged to the top of the support rod body 21, the rotary mounting platform 23 is rotatably connected to the top of the connection platform 22, a tissue simulation cavity 4 is fixedly arranged on the top wall of the rotary mounting platform 23, an air storage groove 41 is formed on the inner circumferential wall of the tissue simulation cavity 4, an air pump 9 is fixedly arranged on the outer circumferential wall of the tissue simulation cavity 4, the air pump 9 is connected to the inside of the air storage groove 41 in a through manner, a tissue placement ring 42 is rotatably connected to the inner wall of the air storage groove 41, mounting grooves 43 are circumferentially arranged on the inner circumferential wall of the tissue placement ring 42, the mounting grooves 43 are connected to the air storage groove 41 in a through manner, a rotating ring plate 421 is fixedly arranged on the inner circumferential wall of the tissue placement ring 42, one end of the rotating ring plate 421 extends outside the tissue simulation cavity 4, a control valve assembly 5 is nested in the mounting groove 43, the control valve assembly 5 includes a fixed air flow ring 51, a sliding air flow ring 52, a valve rod 53 and a first spring 54; the fixed air flow ring 51 is nested and fixedly arranged on the inner circumferential wall of the mounting groove 43, the sliding air flow ring 52 is slidably arranged on the inner circumferential wall of the mounting groove 43, the valve rod 53 is nested and fixedly arranged in the sliding air flow ring 52, the top end of the valve rod 53 passes through the fixed air flow ring 51, a baffle 55 is fixedly arranged at the top end of the valve rod 53, the first spring 54 is sleeved on the valve rod 53, and two ends of the first spring 54 are respectively fixedly connected to the bottom wall of the fixed air flow ring 51 and the top wall of the sliding air flow ring 52; air flow holes are formed through the fixed air flow ring 51 and the sliding air flow ring 52, a to-be-excised component 6 is magnetically connected to the notch of the mounting groove 43, the to-be-excised component 6 includes an electromagnetic fixing block 61, a trigger protrusion 62, a battery 63 and a simulation airbag 64; the electromagnetic fixing block 61 is magnetically adsorbed at the notch end of the mounting groove 43, an air flow through groove 65 is formed on the top wall of the electromagnetic fixing block 61, the trigger protrusion 62 is coaxially nested and fixedly arranged in the air flow through groove 65, a power supply mounting groove 66 is formed on the circumferential wall of the electromagnetic fixing block 61, the battery 63 is fixedly arranged in the power supply mounting groove 66, and the battery 63 is electrically connected to the electromagnetic fixing block 61; the simulation airbag 64 is fixedly arranged at the bottom end of the electromagnetic fixing block 61; an air duct 44 is fixedly arranged on the outer circumferential wall of the tissue simulation cavity 4, one end of the air duct 44 is fixedly connected to the air storage groove 41 in a through manner, the other end of the air duct 44 is connected to a surgical forceps 3 in a through manner, a pressure feedback component 31 is arranged on the handle of the surgical forceps 3, a pressure display tube 7 is fixedly arranged on the outer circumferential wall of the tissue simulation cavity 4, the pressure display tube 7 is a transparent tube body and a scale is arranged on the circumferential wall, the bottom end of the pressure display tube 7 is connected to the air storage groove 41 in a through manner, a second spring 71 is fixedly arranged on the inner top wall of the pressure display tube 7, and a scale plate 72 is fixedly connected to the bottom end of the second spring 71.

[0017] In this embodiment, the air storage tank 41 is inflated by the air pump 9, and the gas applies pressure to the scale plate 72. The demonstrator and the spectator can clearly determine the air pressure in the air storage tank 41 from the position of the scale plate 72. After the air pressure is appropriate, the air pump 9 is stopped, and the electromagnetic fixing block 61 is powered by the battery 63. The demonstrator inserts the electromagnetic fixing block 61 into the notch of the mounting slot 43, triggering the protrusion 62 to push the valve stem 53 toward the outer wall of the tissue simulation cavity 4, so that the baffle 55 is away from the fixed airflow ring 51, and the airflow channel is opened. Since the air pressure in the simulated airbag 64 is small, the gas in the air storage tank 41 passes through the fixed airflow ring 51, the sliding airflow ring 52 and the airflow flow groove 65, and finally enters the simulated airbag 64, causing the simulated airbag 64 to inflate and swell, and the gas flows into the simulated airbag 64. The air pressure in the pressure display tube 7 decreases, and the second spring 71 is elastically released, so that the scale plate 72 is pushed. After the electromagnetic fixing block 61 is adsorbed and fixed, the rotating ring plate 421 is rotated to adjust the position of the component to be removed 6 on the tissue placement ring 42. After the adjustment is completed, the demonstrator rotates the tissue simulation cavity 4 to change the opening direction for easy viewing of the operation. The demonstrator holds the surgical forceps 3 so that the front end of the forceps body of the surgical forceps 3 penetrates into the tissue simulation cavity 4 until the front end of the forceps body of the surgical forceps 3 moves to the simulated air bag 64. The demonstrator presses the handle of the surgical forceps 3, and the forceps body of the surgical forceps 3 clamps the simulated air bag 64, so that the simulated air bag 64 is compressed, allowing the gas to flow back into the air storage tank 41. The gas applies pressure to the scale plate 72, and the demonstrator and the spectators can clearly observe the clamping force at this time from the position of the scale plate 72.

[0018] Embodiment 2: This embodiment is based on the above embodiment, please refer to Figure 1 , Figure 3 , Figure 4 , Figures 7 - 9 In this embodiment, the pressure feedback component 31 includes a catheter 311, a pressure rod 312 and an elastic arc plate 313; the catheter 311 is fixedly arranged on any handle of the surgical forceps 3, one end of the catheter 311 close to the tissue simulation cavity 4 is fixedly connected with the air duct 44 in a through-type manner, the pressure rod 312 is slidably nested in the catheter 311 and one end extends out of the catheter 311, one end of the elastic arc plate 313 is fixedly connected to the pressure rod 312, and the other end of the elastic arc plate 313 is fixedly connected to the side wall of the other handle of the surgical forceps 3; The demonstrator presses the handle of the surgical forceps 3. The forceps body at the front end of the surgical forceps 3 clamps the simulated airbag 64. When the simulated airbag 64 is compressed, the gas flows back to the air storage tank 41. At the same time, the gas exerts pressure on the push rod 312 in the catheter 311. The push rod 312 exerts pressure on the elastic arc plate 313. A greater force is required to continue closing the handle of the surgical forceps 3 to simulate the tissue resistance in real surgery. The demonstrator increases the clamping force. The push rod 312 is pushed back into the catheter 311 by the force applied by the handle of the surgical forceps 3. Finally, the gas flows into the pressure display tube 7 and exerts pressure on the scale plate 72. The clamping force at this time can be clearly observed from the position of the scale plate 72.

[0019] Embodiment 3: Based on the above embodiment, please refer to Figure 1 and Figure 9 , in this embodiment, the otolaryngology surgery demonstration device further includes a plasma simulation rod 8. A connecting rope 81 is provided at the bottom end of the plasma simulation rod 8. The other end of the connecting rope 81 is fixedly connected to the tissue simulation cavity 4. The component to be excised 6 further includes a touch switch 67. The touch switch 67 is fixedly arranged on the circumferential wall of the electromagnetic fixing block 61. The touch switch 67 is electrically connected to the battery 63. After the clamping operation is completed, the plasma simulation rod 8 is used to simulate tissue excision. After the plasma simulation rod 8 touches the touch switch 67, the electrical connection between the battery 63 and the electromagnetic fixing block 61 is cut off. The component to be excised 6 is pulled out by the surgical forceps 3. The first spring 54 drives the valve rod 53 to move downward. After the baffle 55 moves downward, it completely blocks the air flow holes on the fixed air flow ring 51 to prevent continuous gas leakage.

[0020] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention. The actual structure is not limited to this. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the purpose of the present invention's creation, without creative design, they create structural forms and embodiments similar to this technical solution, which should all fall within the protection scope of the present invention.

Claims

1. An ear, nose and throat surgery demonstration device, comprising a base (1) and a support platform (2); the support platform (2) is fixedly arranged on the top wall of the base (1), characterized in that: A tissue simulation cavity (4) is fixedly arranged on the top of the support platform (2); an air storage groove (41) is provided on the inner circumferential wall of the tissue simulation cavity (4); a tissue placement ring (42) is rotatably connected to the inner wall of the air storage groove (41); a mounting groove body (43) is provided in a circumferential array on the inner circumferential wall of the tissue placement ring (42); the mounting groove body (43) is connected to the air storage groove (41); a control valve assembly (5) is nested in the mounting groove body (43); a to-be-resected assembly (6) is magnetically connected to the notch of the mounting groove body (43); an air duct (44) is fixedly arranged on the outer circumferential wall of the tissue simulation cavity (4); one end of the air duct (44) is fixedly connected to the air storage groove (41); the other end of the air duct (44) is connected to the surgical forceps (3); and a pressure feedback assembly (31) is arranged on the handle of the surgical forceps (3).

2. An ear, nose and throat surgery demonstration device according to claim 1, characterized in that: The control valve assembly (5) comprises a fixed airflow ring (51), a sliding airflow ring (52), a valve stem (53) and a first spring (54); the fixed airflow ring (51) is nested and fixedly arranged on the inner circumferential wall of the mounting groove body (43); the sliding airflow ring (52) is slidably arranged on the inner circumferential wall of the mounting groove body (43); the valve stem (53) is nested and fixedly arranged in the sliding airflow ring (52); the top end of the valve stem (53) passes through the fixed airflow ring (51); a baffle (55) is fixedly arranged on the top end of the valve stem (53); the first spring (54) is sleeved on the valve stem (53); and two ends of the first spring (54) are respectively fixedly connected to the bottom wall of the fixed airflow ring (51) and the top wall of the sliding airflow ring (52).

3. An ear, nose and throat surgery demonstration device according to claim 1, characterized in that: The component to be removed (6) comprises an electromagnetic fixing block (61), a triggering protrusion (62) and a simulated airbag (64); the electromagnetic fixing block (61) is magnetically adsorbed on the slot end of the mounting slot body (43); an airflow groove (65) is provided on the top wall of the electromagnetic fixing block (61); the triggering protrusion (62) is coaxially nested and fixedly arranged in the airflow groove (65); and the simulated airbag (64) is fixedly arranged on the bottom wall of the electromagnetic fixing block (61).

4. An ear, nose and throat surgery demonstration device according to claim 1, characterized in that: The pressure feedback component (31) comprises a catheter (311), a pressure rod (312) and an elastic arc plate (313); the catheter (311) is fixedly arranged on any handle of the surgical forceps (3); one end of the catheter (311) close to the tissue simulation cavity (4) is fixedly connected to the air duct (44) in a through-type manner; the pressure rod (312) is slidably nested in the catheter (311) and one end extends out of the catheter (311); one end of the elastic arc plate (313) is fixedly connected to the pressure rod (312); and the other end of the elastic arc plate (313) is fixedly connected to the side wall of the other handle of the surgical forceps (3).

5. The ENT surgery demonstration device according to claim 1, characterized in that: A rotating ring plate (421) is fixedly arranged on the inner circumferential wall of the tissue placement ring (42), and one end of the rotating ring plate (421) extends to the outside of the tissue simulation cavity (4).

6. An ear, nose and throat surgery demonstration device according to claim 1, characterized in that: The support platform (2) comprises a support rod body (21), a connecting platform (22) and a rotating mounting platform (23); the support rod body (21) is fixedly arranged on the top end of the base (1), the connecting platform (22) is hinged to the top end of the support rod body (21), the rotating mounting platform (23) is rotatably connected to the top end of the connecting platform (22), and the tissue simulation cavity (4) is fixedly arranged on the top wall of the rotating mounting platform (23).

7. An ear, nose and throat surgery demonstration device according to claim 1, characterized in that: A pressure display tube (7) is fixedly provided on the outer circumferential wall of the tissue simulation cavity (4), the bottom end of the pressure display tube (7) is connected to the air storage tank (41), a second spring (71) is fixedly provided on the inner top wall of the pressure display tube (7), and a scale plate (72) is fixedly connected to the bottom end of the second spring (71).

Images