Illuminating, light guiding and cooling equipment for ultrasonic treatment

Abstract

The invention discloses lighting, light guiding and cooling equipment for ultrasonic treatment. The equipment comprises a working tip, a light guiding cap, a handle head cap, a light source, an adapter light guiding column, an ultrasonic handle shell, an ultrasonic transducer, a handle tail cap and a tail end power supply terminal, the light guide cap can transmit a light source through the adapter light guide column to illuminate the working tip; wherein the light guide cap, the handle head cap, the adapter light guide column and the ultrasonic handle shell are of hollow structures, the end face of the light guide cap is perpendicular to the axis of the work tip, and the lighting effect of the tip end of the work tip can be greatly improved; gas and / or liquid passes through the handle head cap and the adapter light guide column and then is discharged through the gap between the work tip and the light guide cap, and the cooling and refrigerating effect can be effectively improved when the tip end of the work tip is operated.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and specifically relates to an ultrasonic treatment lighting, light guiding and cooling device, which is used for ultrasonic washing, scaling, root canal treatment, tartar removal, bone tissue cutting and other ultrasonic treatments. Background Art

[0002] Ultrasonic therapy devices are advanced treatment devices for dental and orthopedic surgeries. They use high-frequency ultrasonic vibrations to effectively remove bacteria and plaque from the tooth surface and gums. They can also help dentists perform root canal treatments, tooth extractions, bone tissue cutting, and implant surgeries more accurately and efficiently. In addition, ultrasonic therapy devices can also be used for teeth whitening and periodontal disease treatment, which can reduce pain and discomfort for patients. Using ultrasonic therapy devices for treatment can reduce bleeding and tissue damage during surgery, which helps improve treatment outcomes and reduce postoperative recovery time.

[0003] In the prior art such as the appearance design with announcement number CN307899301S and the utility model patent with announcement number CN218606926U, in the design of the working tip for root canal, crown removal treatment, bone tissue cutting and other operations, in order to reduce the heat loss effect caused by the working tip cutting stones and bone tissue, a slot or opening is set on one side of the curved part of the working tip so that the cooling liquid flow can flow out through the ultrasonic transducer. Under the condition of ultrasonic vibration, the liquid flow is very easy to form water mist, blocking the doctor's line of sight and reducing the probability of the liquid flow reaching the cutting position at the tip of the working tip, which is easy to cause thermal damage to the contact part with the tip of the working tip. In addition, when the working tip is designed with a curved angle, it is difficult for the existing lighting light guide device to irradiate light into the narrow lateral space with an angle, affecting the doctor's surgical operation.

[0004] During the processing and manufacturing of the above-mentioned ultrasonic therapy equipment, there are problems of great processing difficulty and high cost due to the presence of a small long center hole in the working tip and the ultrasonic transducer. Processing defects can easily cause the working tip to break during loading. When using physiological saline for perfusion, the long liquid flow hole in the center of the ultrasonic transducer can easily cause salt crystallization during disinfection and sterilization, blocking the central pore and causing adverse medical events. Summary of the invention

[0005] The present invention provides an illumination light-guiding and cooling device for ultrasonic therapy, which can improve the illumination effect at the tip of the working tip during treatment, greatly improve the illumination problem of the laterally curved working tip through flexible light-guiding, and adjust the cooling method under different powers with the help of external gas-liquid mixed refrigeration, effectively improve the cooling effect when operating on the tip of the working tip, and provide doctors with a clear surgical field of view.

[0006] In order to achieve the above object, the present invention adopts the following specific technical solutions:

[0007] An ultrasonic treatment illumination light guide and cooling device, the light guide and cooling device comprises a working tip, a light guide cap, a handle head cap, a conversion head light guide column, a light source, an ultrasonic handle housing, an ultrasonic transducer, a handle tail cap and a tail end power terminal;

[0008] The light guide cap, the handle head cap, the ultrasonic handle shell and the handle tail cap are fixedly connected in sequence and form a hollow cavity inside;

[0009] The conversion head light guide column, the light source, the ultrasonic transducer and the tail end power terminal are all fixedly installed in the hollow cavity;

[0010] The ultrasonic transducer is arranged through the handle head cap and the ultrasonic handle shell, and the front end is fixedly connected to the rear end of the working tip, and is used to complete piezoelectric conversion of the AC power input through the tail end power terminal to form ultrasonic vibration at the tip of the working tip;

[0011] The two ends of the conversion head light guide column are in contact with the light guide cap and the ultrasonic transducer;

[0012] The front end of the working tip extends outward from the front end of the light guide cap, and an annular gap is formed between the working tip and the light guide cap;

[0013] The light source is fixedly mounted on the rear end of the conversion head light guide column; the conversion head light guide column and the light guide cap are used to transmit the illumination light generated by the light source to the treatment site of the working tip;

[0014] There is a fitting gap between the handle head cap and the conversion head light guide column, and the fitting gap is used to allow the gas / liquid entering through the handle head cap to be ejected through the annular gap to cool the working tip and the treatment site.

[0015] Furthermore, the handle head cap is provided with an air inlet, a liquid inlet, an air outlet, a liquid outlet, a gas channel, a liquid channel and a power terminal;

[0016] The air inlet, the liquid inlet and the power terminal are all located on the outer surface of the handle head cap; the air outlet and the liquid outlet are located in the matching gap; the gas channel and the liquid channel are located in the side wall of the handle head cap; the air inlet is connected to the air outlet through the gas channel; the liquid inlet is connected to the liquid outlet through the liquid channel; the power terminal is electrically connected to the light source;

[0017] When low-power ultrasonic treatment is performed, gas cooling can be used to solve the problem of blurred surgical field caused by ultrasonic atomization; when medium- and high-power ultrasonic treatment is performed, the ratio of water flow and air is adjusted so that the liquid flow forms supersaturated low-temperature water vapor when flowing through the fitting gap, and the working tip is covered with the help of the annular gap to achieve the purpose of cooling.

[0018] Furthermore, the conversion head light guide column is made of a hard light guide material;

[0019] The light guide cap is made of elastic light guide material.

[0020] Furthermore, the rigid light-guiding material is PMMA (polymethyl methacrylate, also known as acrylic or organic glass) or PC (Polycarbonate);

[0021] The elastic light-guiding material is liquid silicone or silicone.

[0022] Furthermore, the light source is a light emitting diode.

[0023] Furthermore, the front end surface of the light guide cap is perpendicular to the tip axis of the working tip.

[0024] Furthermore, the angle between the normal line of the front end surface of the light guide cap and the tip axis of the working tip does not exceed ±20% of the lateral bending angle of the working tip.

[0025] Furthermore, the light guide cap is provided with a plurality of micro holes on the front end surface.

[0026] Furthermore, the plurality of micropores are distributed in a circular array.

[0027] Furthermore, the ultrasonic transducer is a solid structure.

[0028] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0029] 1. The lighting, light-guiding and cooling device of the present invention can provide good lighting effects for the working tip, especially the laterally curved working tip.

[0030] 2. The lighting, light-guiding and cooling equipment of the present invention can provide a variety of cooling solutions for ultrasonic operations of different powers, reducing the problem of blurred surgical fields caused by ultrasonic atomization. For example, when performing low-power ultrasonic treatment, doctors can choose to use gas refrigeration, which can fundamentally solve the problem of blurred surgical fields caused by ultrasonic atomization. When performing medium-power ultrasonic treatment, doctors can choose to adjust the ratio of water flow and air so that the liquid flow forms supersaturated low-temperature water vapor when it flows through the gap between components in the channel, and the working tip is covered with the top opening of the light-guiding cap to achieve the purpose of cooling.

[0031] 3. The lighting, light-guiding and cooling equipment of the present invention can reduce the difficulty and cost of machining and manufacturing the long holes of the working tip and the ultrasonic transducer, and at the same time, reduce the probability of the working tip breaking during loading due to machining defects.

[0032] 4. The lighting, light-guiding and cooling equipment of the present invention can reduce the waterproof structure of the ultrasonic transducer, reduce the need for multiple waterproof sealing structures in the handle of the ultrasonic transducer due to waterproofing, and reduce the ultrasonic vibration loss caused by the liquid flow channel connecting the liquid flow pipeline at the tail end of the ultrasonic transducer and the ultrasonic handle housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The overall structural schematic diagram and cross-sectional view of the lighting light guide and cooling device provided by the present invention;

[0034] Figure 2 for Figure 1 Exploded view and cross-sectional view of the lighting and cooling equipment;

[0035] Figure 3 It is a schematic diagram of the assembly structure of the working tip, the light guide cap and the handle head cap;

[0036] Figure 4 It is a schematic diagram of the structure of the handle head cap;

[0037] Figure 5 A structural schematic diagram of the front end surface of the light guide cap;

[0038] Figure 6 Another structural schematic diagram of the front end surface of the light guide cap.

[0039] Among them, 1-working tip, 2-light guide cap, 3-handle head cap, 4-conversion head light guide column, 5-light source, 6-ultrasonic handle housing, 7-ultrasonic transducer, 8-handle tail cap, 9-tail power terminal, 11-bend, 21-front end surface, 31-front end of the handle head cap, 311-air inlet, 312-air outlet, 313-liquid inlet, 314-liquid outlet, 315-positive pole of the power terminal, 316-negative pole of the power terminal. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] like Figure 1 and Figure 2 As shown in the structure, this embodiment provides an illumination light guide and cooling device for ultrasonic therapy, which includes a working tip 1, a light guide cap 2, a handle head cap 3, a conversion head light guide column 4, a light source 5, an ultrasonic handle housing 6, an ultrasonic transducer 7, a handle tail cap 8 and a tail power terminal 9; wherein: the ultrasonic transducer 7 is a solid structure; wherein:

[0042] The light guide cap 2, the conversion head light guide column 4, the handle head cap 3, and the ultrasonic handle shell 6 are all hollow structures; the light guide cap 2, the handle head cap 3, the ultrasonic handle shell 6, and the handle tail cap 8 are fixedly connected from front to back in sequence, and form a hollow cavity inside; the conversion head light guide column 4, the light source 5, the ultrasonic transducer 7, and the tail power terminal 9 are all fixedly installed in the hollow cavity. Figure 1 and Figure 2 As shown, the light guide cap 2 and the handle head cap 3 can be connected by snapping, a snap groove is provided inside the rear end of the light guide cap 2, and a snap flange is provided at the front end of the handle head cap 3. When the snap flange is snapped into the snap groove, a sealed connection is achieved between the light guide cap 2 and the handle head cap 3. A sealing cone is provided on the inner side wall at the rear end of the handle head cap 3, and a conical sealing surface is provided at the rear end of the conversion head light guide column 4. The ultrasonic transducer 7 passes through the central through hole of the conversion head light guide column 4, and the conversion head light guide column 4 is squeezed so that the conical sealing surface of the conversion head light guide column 4 cooperates with the sealing cone of the handle head cap 3 to achieve an annular seal.

[0043] The ultrasonic transducer 7 is installed in the handle head cap 3 and the ultrasonic handle shell 6. The ultrasonic transducer 7 runs through the handle head cap 3 and the ultrasonic handle shell 6. The front end of the ultrasonic transducer 7 is fixedly connected to the rear end of the working tip 1, and is used to complete the piezoelectric conversion of the AC power input through the tail end power terminal 9, and form ultrasonic vibration at the tip of the working tip 1 to achieve surgical operations such as cutting, drilling, and scraping; the tail end power terminal 9 is installed in the ultrasonic handle shell 6, and is used to connect the ultrasonic transducer 7 with an external power supply to provide AC power to the ultrasonic transducer 7.

[0044] The light source 5 is fixedly mounted on the rear end of the conversion head light guide column 4, and is used to generate illumination light; the conversion head light guide column 4 and the light source 5 are installed in the handle head cap 3; the two ends of the conversion head light guide column 4 are in contact with the light guide cap 2 and the ultrasonic transducer 7, and are used to transmit the light generated by the light source 5 to the light guide cap 2. The light source 5 is a light emitting diode, and has a circuit board, the light emitting diode is welded on the circuit board, and the circuit board is fixedly mounted on the rear end face of the conversion head light guide column 4.

[0045] The front end of the working tip 1 extends to the outside of the front end of the light guide cap 2, and an annular gap is formed between the working tip 1 and the light guide cap 2; the rear end of the working tip 1 is fixedly connected to the front end of the ultrasonic transducer 7, and the working tip 1 and the ultrasonic transducer 7 can be connected by a thread. In this embodiment, the working tip 1 is a bent structure, with a bent portion 11 in the middle, so that an angle is formed between the front and rear ends of the bent portion 11 of the working tip 1.

[0046] The conversion head light guide column 4 and the light guide cap 2 are used to transmit the illumination light generated by the light source 5 to the treatment site of the working tip 1; the conversion head light guide column 4 is made of a hard light guide material, such as PMMA (polymethyl methacrylate, Polymethylmethacrylate, also known as acrylic or plexiglass) or PC (Polycarbonate); the light guide cap 2 is made of an elastic light guide material, such as liquid silicone or silicone.

[0047] There is a fitting gap between the handle head cap 3 and the conversion head light guide column 4, and the handle head cap 3 and the conversion head light guide column 4 are sealed and fitted together at the rear end, so that the fitting gap formed between the handle head cap 3 and the conversion head light guide column 4 has an outlet only at the front end facing the working tip 1, and no outlet at the rear end facing the handle rear cap, that is, the gas and / or liquid entering the fitting gap between the handle head cap 3 and the conversion head light guide column 4 through the handle head cap 3 can only flow out from the working tip 1 end, and the fitting gap is used to allow the gas / liquid entering through the handle head cap 3 to be ejected through the annular gap to cool the working tip 1 and the treatment site. In order to facilitate the formation of a fitting gap between the handle head cap 3 and the conversion head light guide column 4, and to form an annular gap between the working tip 1 and the light guide cap 2, as shown in FIG. Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the light guide cap 2, the handle head cap 3, and the conversion head light guide column 4 are all provided with a tapered portion.

[0048] In order to cool and clean the working tip 1 and the treatment area, Figure 4 As shown, the handle head cap 3 is provided with an air inlet 311, an air outlet 312, a liquid inlet 313, a liquid outlet 314, a gas channel (not shown in the figure), a liquid channel (not shown in the figure) and a power terminal; the power terminal has a positive power terminal 315 and a negative power terminal 316; the air inlet 311, the liquid inlet 313 and the power terminal are all located on the outer surface of the handle head cap 3; the air outlet 312 and the liquid outlet 314 are located in the fitting gap; the gas channel and the liquid channel are located in the side wall of the handle head cap 3; the air inlet 311 is connected with the air outlet 312 through the gas channel; the liquid inlet 313 is connected with the liquid outlet 314 through the liquid channel; the power terminal is electrically connected to the light source 5, and is used to provide driving current to the light source 5.

[0049] When the above-mentioned working tip 1 is used for low-power ultrasonic treatment, the blurred surgical field caused by ultrasonic atomization can be solved by using gas cooling; when the above-mentioned working tip 1 is used for medium- and high-power ultrasonic treatment, by adjusting the ratio of water flow and air, the liquid flow forms supersaturated low-temperature water vapor when flowing through the fitting gap, and the working tip 1 is covered with the help of the annular gap to achieve the purpose of cooling.

[0050] like Figure 3 As shown, the front end face 21 of the light guide cap 2 is perpendicular to the tip axis of the working tip 1. The front end of the working tip 1 is a tip and a working end, and the rear end is provided with a base (not shown in the figure) fixedly connected to the ultrasonic transducer 7. The tip and the base are an integrally formed structure. In this embodiment, the tip of the working tip 1 is a bending structure and has a lateral bending angle; the central axis of the base coincides with the central axis of the ultrasonic transducer 7 and the central axis of the ultrasonic handle housing 6, and the lateral bending angle is equal to the angle between the axis of the front end part of the tip and the axis of the base. At the same time, the lateral bending angle is also equal to the angle β between the axis of the front end part of the tip and the axis of the ultrasonic handle housing 6; the angle between the normal line of the front end face of the light guide cap 2 and the tip axis of the working tip 1 does not exceed ±20% of the lateral bending angle of the working tip, thereby ensuring that the annular gap can be aligned with the working tip 1 or the treatment site, and avoiding the ejected gas and / or liquid from deviating from the working tip 1 or the treatment site. In particular, as Figure 3 As shown in the figure, when the angle β between the axis of the tip of the working tip 1 and the axis of the handle is greater than 0°, the light emitted from the conversion head light guide column 4 cannot effectively illuminate the tip working area of ​​the working tip 1; when the light guide cap 2 is added and its front end face is approximately perpendicular to the tip axis of the working tip 1, that is, γ = 90°, the divergence angle α of the light emitted from this part is effective to illuminate the working area. Generally, the optical refractive index of the flexible silicone material is about 1.44, and its divergence angle is not less than 60°.

[0051] In order to adjust the emission direction of the refrigerant gas and fluid at the tip of the working tip 1, the light guide cap 2 is provided with a plurality of micro holes on the front end surface 21, such as Figure 5 and Figure 6 As shown, multiple micropores are distributed in a circular array. Figure 5 A plurality of circular holes are arranged at the tip of the working tip 1. Figure 6 Two oblong holes are arranged at the tip of the working tip 1, so as to control the spatial distribution ratio of the liquid flow reaching different positions of the tip.

[0052] The above-mentioned lighting, light-guiding and cooling equipment can provide good lighting effects for the working tip 1, especially the laterally curved working tip 1, and can provide a variety of cooling solutions for ultrasonic operations of different powers, thereby reducing the problem of blurred surgical fields caused by ultrasonic atomization. For example, when performing low-power ultrasonic treatment, doctors can choose to use gas refrigeration, which can fundamentally solve the problem of blurred surgical fields caused by ultrasonic atomization. When performing medium-power ultrasonic treatment, doctors can choose to adjust the ratio of water flow and air so that the liquid flow forms supersaturated low-temperature water vapor when it flows through the gap between components in the channel, and covers the working tip 1 with the help of the top opening of the light-guiding cap 2 to achieve the purpose of cooling.

[0053] The working tip 1 and ultrasonic transducer 7 of the above-mentioned lighting, light-guiding and cooling equipment adopt a solid structure, and there is no need to open long holes in the working tip 1 and the ultrasonic transducer 7, which can reduce the difficulty and cost of processing and manufacturing the long holes in the working tip 1 and the ultrasonic transducer 7. At the same time, it can reduce the probability of the working tip 1 breaking during loading due to processing defects; and the cooling gas and liquid directly enter the space between the handle head cap 3 and the conversion head light guide column 4 through the handle head cap 3, thereby reducing the waterproof structure of the ultrasonic transducer 7, and can reduce the various waterproof sealing structures required for the ultrasonic transducer 7 in the handle part due to waterproofing, and reduce the ultrasonic vibration loss caused by the liquid flow channel connecting the liquid flow pipeline at the tail end of the ultrasonic transducer 7 and the ultrasonic handle housing 6.

[0054] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An illumination, light-guiding and cooling device for ultrasonic therapy, characterized in that: It includes a working tip, a light guide cap, a handle head cap, a conversion head light guide column, a light source, an ultrasonic handle housing, an ultrasonic transducer, a handle tail cap and a tail end power terminal; The light guide cap, the handle head cap, the ultrasonic handle shell and the handle tail cap are fixedly connected in sequence and form a hollow cavity inside; The conversion head light guide column, the light source, the ultrasonic transducer and the tail end power terminal are all fixedly installed in the hollow cavity; The ultrasonic transducer is arranged through the handle head cap and the ultrasonic handle shell, and the front end is fixedly connected to the rear end of the working tip, and is used to complete piezoelectric conversion of the AC power input through the tail end power terminal to form ultrasonic vibration at the tip of the working tip; The two ends of the conversion head light guide column are in contact with the light guide cap and the ultrasonic transducer; The front end of the working tip extends outward from the front end of the light guide cap, and an annular gap is formed between the working tip and the light guide cap; The light source is fixedly mounted on the rear end of the conversion head light guide column; the conversion head light guide column and the light guide cap are used to transmit the illumination light generated by the light source to the treatment site of the working tip; There is a fitting gap between the handle head cap and the conversion head light guide column, and the fitting gap is used to allow the gas / liquid entering through the handle head cap to be ejected through the annular gap to cool the working tip and the treatment site.

2. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The handle head cap is provided with an air inlet, a liquid inlet, an air outlet, a liquid outlet, a gas channel, a liquid channel and a power terminal; The air inlet, the liquid inlet and the power terminal are all located on the outer surface of the handle head cap; the air outlet and the liquid outlet are located in the matching gap; the gas channel and the liquid channel are located in the side wall of the handle head cap; the air inlet is connected to the air outlet through the gas channel; the liquid inlet is connected to the liquid outlet through the liquid channel; the power terminal is electrically connected to the light source; When low-power ultrasonic treatment is performed, gas cooling can be used to solve the problem of blurred surgical field caused by ultrasonic atomization; when medium- and high-power ultrasonic treatment is performed, the ratio of water flow and air is adjusted so that the liquid flow forms supersaturated low-temperature water vapor when flowing through the fitting gap, and the working tip is covered with the help of the annular gap to achieve the purpose of cooling.

3. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The conversion head light guide column is made of hard light guide material; The light guide cap is made of elastic light guide material.

4. The illumination, light-guiding and cooling device for ultrasonic therapy as claimed in claim 3, characterized in that: The rigid light-guiding material is PMMA (polymethyl methacrylate, also known as acrylic or organic glass) or PC (Polycarbonate); The elastic light-guiding material is liquid silicone or silicone.

5. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The light source is a light emitting diode.

6. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The front end surface of the light guide cap is perpendicular to the tip axis of the working tip.

7. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The angle between the normal line of the front end surface of the light guide cap and the tip axis of the working tip does not exceed ±20% of the lateral bending angle of the working tip.

8. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The light guide cap is provided with a plurality of micro holes on the front end surface.

9. The illumination, light-guiding and cooling device for ultrasonic therapy as claimed in claim 8, characterized in that: The plurality of micropores are distributed in a circular array.

10. The illumination, light-guiding and cooling device for ultrasonic therapy according to claim 1, characterized in that: The ultrasonic transducer is a solid structure.

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