Stapedius prosthesis, stapedius forceps, stapedius prosthesis mounting system and stapedius prosthesis mounting method

Abstract

The invention discloses a stapedius prosthesis, stapedius forceps, a stapedius prosthesis mounting system and a stapedius prosthesis mounting method.The stapedius prosthesis comprises a rod-shaped part and a U-shaped supporting part arranged at one end of the rod-shaped part; during use, the other end of the rod-shaped part stands on a stapes plate, and an opening of the U-shaped supporting part faces the incus to enable the incus to be placed in a U-shaped groove of the U-shaped supporting part; the stapes clamp comprises a shell and a push plate, the shell is fixedly installed on the first clamp handle, and the push plate is fixedly installed on the second clamp handle and arranged in the shell. A displacement sensor and a pressure sensor are sequentially arranged between the push plate and the inner wall of the shell in the moving direction of the push plate. The processor reads the displacement amount and the corresponding pressure value of the stapes prosthesis in the clamping process in real time, and a pressure-displacement curve is formed based on the displacement amount and the pressure value and displayed on the display screen. The stapes prosthesis disclosed by the invention is favorable for mounting the incus of a human body in an operation; the stapes forceps can effectively clamp the stapes prosthesis in a controlled mode, and incus cannot be damaged in the clamping process.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to a stapes prosthesis, a stapes clamp, a stapes prosthesis installation system and an installation method. Background Art

[0002] like Figure 1 As shown in the figure, the shape of the commonly used artificial stapes prosthesis is similar to a hook, which is composed of a cylindrical part and a hook part. When in use, the cylindrical part of the artificial stapes prosthesis stands on the stapes plate, and the hook part hooks the incus. Figure 2 After the stapes prosthesis is positioned as shown, the hook of the stapes prosthesis is gripped with the existing surgical forceps and deformed by force, so that the hook is hooked and fixed on the incus. The existing surgical forceps is composed of a first clamp part and a second clamp part that are hinged to each other, the first clamp part includes an integrated first clamp head and a first clamp handle, and the second clamp part is an integrated second clamp head and a second clamp handle.

[0003] Existing artificial stapes prosthesis and surgical forceps have the following defects:

[0004] 1. The opening of the hook of the stapes prosthesis faces the stapes plate, which is not conducive to the placement of the incus;

[0005] 2. When the existing surgical forceps tighten the stapes prosthesis hook, excessive force may damage the incus, while insufficient force may affect sound transmission or cause the prosthesis to be poorly installed or even fall off. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a stapes prosthesis, a stapes clamp, a stapes prosthesis installation system and an installation method thereof.

[0007] The invention discloses a stapes prosthesis, comprising: a rod-shaped portion and a U-shaped support portion arranged at one end of the rod-shaped portion, wherein the U-shaped support portion has the ability of elastic deformation and plastic deformation; when in use, the other end of the rod-shaped portion stands on a stapes plate, and the opening of the U-shaped support portion faces the incus so that the incus is placed in the U-shaped groove of the U-shaped support portion.

[0008] As a further improvement of the present invention, the ends of the two side walls of the U-shaped support portion are bent outward to form symmetrical clamping holes; the clamping holes are clamped by the stapes clamp head to tighten the opening of the U-shaped support portion so that the U-shaped support portion is clamped on the incus.

[0009] As a further improvement of the present invention, the U-shaped support portion is coaxially arranged with the rod-shaped portion, and the U-shaped support portion faces away from the rod-shaped portion.

[0010] As a further improvement of the present invention, the rod-shaped portion and the U-shaped supporting portion are an integrated pure titanium part, and the rod-shaped portion is preferably a cylindrical portion.

[0011] As a further improvement of the present invention, the rod-shaped portion is connected to the bottom center of the U-shaped support portion through a neck, and the neck is a structure with large ends and a small center, and the ends gradually shrink toward the center.

[0012] The present invention also discloses a stapes forceps, comprising a first clamp part and a second clamp part which are hinged to each other, wherein the first clamp part comprises an integrated first clamp head and a first clamp handle, and the second clamp part comprises an integrated second clamp head and a second clamp handle, and the U-shaped supporting part of the stapes prosthesis is clamped and fixed on the incus by the first clamp head and the second clamp head; the stapes forceps also comprises: a shell and a push plate;

[0013] The housing is fixedly mounted on the first clamp handle, and the push plate is fixedly mounted on the second clamp handle and is placed in the housing; a displacement sensor and a pressure sensor are sequentially arranged between the push plate and the inner wall of the housing along the movement direction of the push plate, and in the process of relative squeezing action between the first clamp handle and the second clamp handle, the push plate drives the displacement sensor to squeeze the pressure sensor, so as to obtain the displacement value through the displacement sensor and obtain the pressure value through the pressure sensor;

[0014] A processor is fixedly installed in the shell, and a display screen is provided outside the shell; the processor is connected to the displacement sensor, the pressure sensor and the display screen, and the processor is used to read the displacement and the corresponding pressure value in real time, form a pressure-displacement curve based on the displacement and the pressure value, and display it on the display screen.

[0015] As a further improvement of the present invention, a power supply and a buzzer are provided in the shell, and the buzzer is connected to the processor; when the displacement and / or pressure value obtained by the processor is greater than the preset displacement and / or pressure value, the buzzer starts to sound.

[0016] As a further improvement of the present invention, the shell is provided with a power switch, a mode switch and a selection button, and the mode switch is used to select a recording mode and a comparison mode; the recording mode is used to clamp the stapes prosthesis with a stapes clamp for elastic deformation before the stapes prosthesis is implanted, so that the processor establishes and stores a pressure-displacement curve of the elastic deformation stage of the stapes prosthesis; the comparison mode is used to implant the stapes prosthesis into the body after the recording mode ends, and clamp one end of the stapes prosthesis on the incus with the stapes clamp, so that the processor compares the pressure-displacement curve established in the surgical stage with the pressure-displacement curve established in the recording mode.

[0017] As a further improvement of the present invention, the displacement sensor is a capacitive displacement sensor, and the pressure sensor is a thin film flexible FSR sensor.

[0018] The invention also discloses a stapes prosthesis installation system, comprising: the stapes prosthesis and the stapes clamp.

[0019] The present invention also discloses a stapes prosthesis installation method, comprising:

[0020] Before implanting the artificial stapes prosthesis, turn on the power of the stapes clamp and select the recording mode; use the stapes clamp to clamp the stapes prosthesis to make the stapes prosthesis elastically deformed, at this time the processor obtains the displacement through the displacement sensor, obtains the pressure value through the pressure sensor, and forms a pressure-displacement curve under elastic deformation on the display screen;

[0021] After the recording mode is finished, the stapes prosthesis is implanted in the body, the rod-shaped part of the stapes prosthesis stands on the stapes plate, and the U-shaped support part supports the incus; then the U-shaped support part of the stapes prosthesis is tightened with a stapes clamp to clamp it on the incus; the initial deformation of the stapes prosthesis is elastic deformation, and its recorded pressure-displacement curve is consistent with the pressure-displacement curve recorded in the recording mode; when the stapes prosthesis deforms and contacts the incus, the pressure-displacement curve after contact begins to change compared with the pressure-displacement curve before contact, and a buzzer sounds at this time. The device starts to sound to remind the doctor that the stapes prosthesis has been deformed and has contacted the incus; the stapes prosthesis is still in the elastic deformation stage after contacting the incus, and the slope of its recorded pressure-displacement curve is within a preset range compared to the pressure-displacement curve before contact; when the slope change of the pressure-displacement curve after contact and the pressure-displacement curve before contact is greater than a preset value, it indicates that the stapes prosthesis has entered the plastic deformation stage from the elastic deformation stage, and the doctor can select the displacement change according to the displacement graph on the screen, thereby controlling the deformation amount of the stapes prosthesis.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The stapes prosthesis of the present invention is conducive to surgical installation of the human incus;

[0024] The stapes clamp of the present invention can obtain the displacement and pressure values ​​of the stapes prosthesis when clamping, and the pressure-displacement curve drawn based on this can allow the doctor to understand in real time the clamping state of the stapes prosthesis, whether plastic deformation occurs and the deformation amount, so that the stapes prosthesis can be clamped effectively and controlled without damaging the incus during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an existing artificial stapes prosthesis;

[0026] Figure 2 The figure is a schematic diagram of the installation of an existing artificial stapes prosthesis;

[0027] Figure 3 It is a schematic structural diagram of the stapes prosthesis disclosed in the present invention;

[0028] Figure 4It is a three-dimensional schematic diagram of the stapes forceps disclosed in the present invention;

[0029] Figure 5 for Figure 4 Side view of

[0030] Figure 6 for Figure 5 AA direction schematic diagram;

[0031] Figure 7 for Figure 5 BB direction schematic diagram.

[0032] In the figure:

[0033] 10. stapes prosthesis; 11. rod-shaped portion; 12. U-shaped supporting portion; 13. clamping hole;

[0034] 20. Stapes forceps; 21. First forceps head; 22. Second forceps head; 23. First forceps handle; 24. Second forceps handle; 25. Housing; 26. Push plate; 27. Displacement sensor; 28. Pressure sensor; 29. ​​Processor; 210. Power supply; 211. Buzzer; 212. Selection button; 213. Power switch; 214. Mode switch; 215. Display screen. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0037] like Figure 3As shown, the present invention provides a stapes prosthesis, which includes a rod-shaped portion 11 and a U-shaped support portion 12 arranged at one end of the rod-shaped portion 11, the U-shaped support portion 12 has the ability of elastic deformation and plastic deformation, and the ends of the two side walls of the U-shaped support portion 12 are bent outward to form symmetrical clamping holes 13; when in use, the other end of the rod-shaped portion 11 stands on the stapes plate, and the opening of the U-shaped support portion 12 faces the incus so that the incus is placed in the U-shaped groove of the U-shaped support portion 12; then, the clamping hole 13 is clamped by the stapes clamp head to tighten the opening of the U-shaped support portion 12 so that the U-shaped support portion 12 is clamped on the incus. Specifically: the U-shaped support portion 12 is coaxially arranged with the rod-shaped portion 11, and the U-shaped support portion 12 is facing away from the rod-shaped portion 11; the rod-shaped portion 11 and the U-shaped support portion 12 are an integrated pure titanium part, and the rod-shaped portion 11 is preferably a cylindrical portion; the cylindrical portion and the bottom center of the U-shaped support portion 12 are connected through a neck, and the neck is a structure with large ends and a small center, and the two ends gradually shrink toward the center.

[0038] like Figures 4 to 7 As shown, the present invention provides a stapes pliers, the stapes pliers 20 comprises a first clamp part and a second clamp part which are hinged to each other, the first clamp part comprises an integrated first clamp head 21 and a first clamp handle 23, the second clamp part comprises an integrated second clamp head 22 and a second clamp handle 24, and the first clamp head 21 and the second clamp head 22 are used to clamp the stapes pliers. Figure 3 The U-shaped support portion 12 of the stapes prosthesis 10 shown is clamped and fixed on the incus. Meanwhile, the stapes forceps 20 also includes: a shell 25 and a push plate 26; the shell 25 is fixedly mounted on the first clamp handle 23, the push plate 26 is fixedly mounted on the second clamp handle 24 and placed in the shell 25, and the bottom of the shell 25 is provided with an avoidance groove for avoiding the movement of the push plate 26; during the movement of the second clamp handle 24 relative to the first clamp handle 23, the push plate 26 moves synchronously in the shell 25. A displacement sensor 27 and a pressure sensor 28 are sequentially arranged between the push plate 26 and the inner wall of the shell 25 along the movement direction of the push plate 26, the push plate 26 is an L-shaped plate, one end of the displacement sensor 27 abuts on the push plate 26, and the other end acts on the pressure sensor 28 directly or through a spring, and the pressure sensor 28 is mounted on the shell 25. Based on this, during the relative squeezing action between the first clamp handle 23 and the second clamp handle 24, the push plate 26 drives the displacement sensor 27 to squeeze the pressure sensor 28, so as to obtain the displacement through the displacement sensor 27 and the pressure value through the pressure sensor 28. Further, the displacement sensor 27 is a capacitive grid displacement sensor, and the pressure sensor 28 is a thin film flexible FSR sensor.

[0039] A processor 29, a power supply 210 and a buzzer 211 are fixedly installed in the shell of the present invention, and a display screen 215 is also provided outside the shell 25; the processor 29 is connected to the displacement sensor 27, the pressure sensor 28, the display screen 215 and the buzzer 211, and the processor 29 is used to read the displacement and the corresponding pressure value in real time, form a pressure-displacement curve based on the displacement and the pressure value and display it on the display screen 215, so that the doctor can judge the deformation degree of the stapes prosthesis through the pressure-displacement curve on the display screen; at the same time, when the displacement and / or pressure value (in comparison mode) obtained by the processor 29 is greater than the preset displacement and / or pressure value compared with the reference displacement and / or pressure value (in recording mode), the buzzer 211 starts to sound to remind the doctor that the plastic deformation stage is about to begin; wherein the preset displacement and pressure values ​​can be 0.05 mm and 0.05 N.

[0040] The housing 25 of the present invention is provided with a power switch 213, a mode switch 214 and a selection button 212, and the mode switch 214 is used to select a recording mode and a comparison mode; the recording mode is used to clamp the stapes prosthesis 10 by the stapes clamp 20 for elastic deformation before the stapes prosthesis is implanted, so that the processor establishes and stores a pressure-displacement curve of the elastic deformation stage of the stapes prosthesis; the comparison mode is used to implant the stapes prosthesis into the body after the recording mode ends, and clamp one end of the stapes prosthesis on the incus by the stapes clamp, so that the processor compares the pressure-displacement curve established in the surgical stage with the pressure-displacement curve established in the recording mode, if the data is greater than the preset displacement and / or pressure value after comparison, it means that the pressure-displacement curve appears parallel, indicating that the stapes prosthesis has contacted the incus; at this time, the doctor can be reminded by a buzzer or the pressure-displacement curve on the display screen can be provided with a reference for subsequent operations.

[0041] The present invention provides a stapes prosthesis installation system, comprising: the stapes prosthesis 10 and the stapes clamp 20; a stapes prosthesis installation method based on the stapes prosthesis installation system, comprising:

[0042] Before implanting the artificial stapes prosthesis, turn on the power of the stapes clamp and select the recording mode; use the stapes clamp to clamp the stapes prosthesis to make the stapes prosthesis elastically deformed (note that it must be elastic deformation, and it cannot be excessive force that causes it to enter the plastic deformation stage after elastic deformation). At this time, the processor obtains the displacement through the displacement sensor, obtains the pressure value through the pressure sensor, and forms a pressure-displacement curve under elastic deformation on the display screen;

[0043] After the recording mode is finished, the stapes prosthesis is implanted in the body, the rod-shaped part of the stapes prosthesis stands on the stapes plate, and the U-shaped supporting part supports the incus; then the U-shaped supporting part of the stapes prosthesis is tightened with a stapes clamp to clamp it on the incus; the initial deformation of the stapes prosthesis is elastic deformation, and its recorded pressure-displacement curve is consistent with the pressure-displacement curve recorded in the recording mode; when the stapes prosthesis deforms and contacts the incus, the pressure-displacement curve after contact begins to change compared with the pressure-displacement curve before contact, and the buzzer starts to sound at this time to remind the doctor that the stapes prosthesis has been deformed and contacted with the incus; the stapes prosthesis after contacting the incus It is still in the elastic deformation stage, and the slope of the pressure-displacement curve recorded is within the preset range with respect to the pressure-displacement curve before contact; that is, the slopes of the two curves are almost the same, and the curves will move upward in parallel; when the slope change of the pressure-displacement curve after contact and the pressure-displacement curve before contact is greater than the preset value, it indicates that the stapes prosthesis has entered the plastic deformation stage from the elastic deformation stage, and the doctor can select the displacement change according to the displacement graph on the screen, and then control the deformation amount of the stapes prosthesis to ensure that the stapes prosthesis can undergo plastic deformation without damaging the incus; wherein, during use, as long as the stapes prosthesis undergoes plastic deformation, the effect can be achieved.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stapes prosthesis, characterized in that: include: A rod-shaped portion and a U-shaped support portion arranged at one end of the rod-shaped portion; when in use, the other end of the rod-shaped portion stands on the stapes plate, and the opening of the U-shaped support portion faces the incus so that the incus is placed in the U-shaped groove of the U-shaped support portion.

2. The stapes prosthesis according to claim 1, characterized in that: The ends of the two side walls of the U-shaped support part are bent outward to form symmetrical clamping holes; the clamping holes are clamped by the stapes clamp head to tighten the opening of the U-shaped support part so that the U-shaped support part is clamped on the incus.

3. The stapes prosthesis according to claim 1 or 2, characterized in that: The U-shaped support portion is coaxially arranged with the rod-shaped portion, and the U-shaped support portion faces away from the rod-shaped portion.

4. The stapes prosthesis according to claim 1 or 2, characterized in that: The rod-shaped portion and the U-shaped supporting portion are an integrated pure titanium part.

5. A stapes forceps, comprising a first jaw portion and a second jaw portion which are hingedly connected, wherein the first jaw portion comprises an integrated first jaw head and a first jaw handle, and the second jaw portion comprises an integrated second jaw head and a second jaw handle, and the U-shaped supporting portion of the stapes prosthesis is clamped and fixed on the incus by the first jaw head and the second jaw head; characterized in that: The stapes forceps also include: a shell and a push plate; The housing is fixedly mounted on the first clamp handle, and the push plate is fixedly mounted on the second clamp handle and is placed in the housing; a displacement sensor and a pressure sensor are sequentially arranged between the push plate and the inner wall of the housing along the movement direction of the push plate, and in the process of relative squeezing action between the first clamp handle and the second clamp handle, the push plate drives the displacement sensor to squeeze the pressure sensor, so as to obtain the displacement value through the displacement sensor and obtain the pressure value through the pressure sensor; A processor is fixedly installed in the shell, and a display screen is provided outside the shell; the processor is connected to the displacement sensor, the pressure sensor and the display screen, and the processor is used to read the displacement and the corresponding pressure value in real time, form a pressure-displacement curve based on the displacement and the pressure value, and display it on the display screen.

6. The stapes clamp according to claim 5, characterized in that: A power supply and a buzzer are arranged in the shell, and the buzzer is connected to the processor; when the displacement and / or pressure value acquired by the processor is greater than the preset displacement and / or pressure value, the buzzer starts to sound.

7. The stapes clamp according to claim 6, characterized in that: The shell is provided with a power switch, a mode switch and a selection button, and the mode switch is used to select a recording mode and a comparison mode; the recording mode is used to clamp the stapes prosthesis with a stapes clamp for elastic deformation before the stapes prosthesis is implanted, so that the processor establishes and stores a pressure-displacement curve of the elastic deformation stage of the stapes prosthesis; the comparison mode is used to implant the stapes prosthesis into the body after the recording mode ends, and clamp one end of the stapes prosthesis on the incus with the stapes clamp, so that the processor compares the pressure-displacement curve established in the surgical stage with the pressure-displacement curve established in the recording mode.

8. The stapes clamp according to claim 5, characterized in that: The displacement sensor is a capacitive displacement sensor, and the pressure sensor is a thin film flexible FSR sensor.

9. A stapes prosthesis installation system, characterized in that: include: The stapes prosthesis according to any one of claims 1 to 4 and the stapes clamp according to any one of claims 5 to 8.

10. A stapes prosthesis installation method based on the stapes prosthesis installation system according to claim 9, characterized in that: include: Before implanting the stapes prosthesis, turn on the power of the stapes clamp and select the recording mode; The stapes prosthesis is clamped with a stapes clamp to cause the stapes prosthesis to undergo elastic deformation. At this time, the processor obtains the displacement through the displacement sensor, obtains the pressure value through the pressure sensor, and forms a pressure-displacement curve under elastic deformation on the display screen; After the recording mode is finished, the stapes prosthesis is implanted in the body, the rod-shaped part of the stapes prosthesis stands on the stapes plate, and the U-shaped support part supports the incus; then the U-shaped support part of the stapes prosthesis is tightened with a stapes clamp to clamp it on the incus; the initial deformation of the stapes prosthesis is elastic deformation, and its recorded pressure-displacement curve is consistent with the pressure-displacement curve recorded in the recording mode; when the stapes prosthesis deforms and contacts the incus, the pressure-displacement curve after contact begins to change compared with the pressure-displacement curve before contact, and a buzzer sounds at this time. The device starts to sound to remind the doctor that the stapes prosthesis has been deformed and has contacted the incus; the stapes prosthesis is still in the elastic deformation stage after contacting the incus, and the slope of its recorded pressure-displacement curve is within a preset range compared to the pressure-displacement curve before contact; when the slope change of the pressure-displacement curve after contact and the pressure-displacement curve before contact is greater than a preset value, it indicates that the stapes prosthesis has entered the plastic deformation stage from the elastic deformation stage, and the doctor can select the displacement change according to the displacement graph on the screen, thereby controlling the deformation amount of the stapes prosthesis.

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