Ultrasonic knife bar and ultrasonic knife instrument

Abstract

The utility model relates to the technical field of ultrasonic knife bars, and discloses an ultrasonic knife bar and an ultrasonic knife instrument, the ultrasonic knife bar comprises a knife bar main body, the length of the knife bar main body is integral multiples of the half wavelength of sound waves, the knife bar main body comprises a bar connecting part, a bar body and a bar head part, and the bar connecting part is used for being connected with a generator; the two ends of the rod body are in butt joint with the rod connecting part and the rod head part respectively, the rod head part is used for ultrasonic operation, the rod connecting part is provided with a near-end section, the rod head part is provided with a far-end section, the length of the near-end section and the length of the far-end section are consistent with the length corresponding to 1 / 2 wavelength respectively, and the size or weight of the near-end section is larger than that of the far-end section. Due to the fact that the size or the weight of the near-end section is larger than that of the far-end section, when ultrasonic operation is carried out, the amplitude of the cutter bar body is effectively improved, meanwhile, the cutting speed of the bar head part is obviously improved, the operation efficiency is improved, and cutting operation on some fine parts is achieved through the bar head part.

Description

Technical Field

[0001] This utility model patent relates to the technical field of ultrasonic tool holders, and more specifically, to ultrasonic tool holders. Background Technology

[0002] An ultrasonic scalpel system is a commonly used surgical instrument, which includes an ultrasonic scalpel main unit, a foot pedal activation switch, an ultrasonic blade, and connecting wires. The ultrasonic blade is activated by using a foot pedal activation switch or a hand-operated activation switch, which converts electrical energy into mechanical energy of ultrasonic vibration and transmits it to the tip of the ultrasonic blade. This causes the tissue in contact with the tip of the ultrasonic blade to absorb ultrasonic energy, resulting in the breaking of protein hydrogen bonds and the creation of a cavitation effect. Subsequently, the tissue coagulates and denatures, and is cut under clamping pressure, achieving the effect of cutting and coagulating in one step.

[0003] For example, the prior patent with authorization announcement number CN116983053A discloses an ultrasonic surgical scalpel tip, including an ultrasonic surgical scalpel with clamps. The tip includes a connecting rod and a tip body, wherein the tip is also provided with a cutting groove located on the connecting rod and extending towards the tip body. The tip body includes a tissue cutting side, a back cutting side, a first arc-shaped side and a second arc-shaped side. The tissue cutting side and the back cutting side are arranged opposite to each other, and the first arc-shaped side and the second arc-shaped side are arranged opposite to each other. The distal end of the tip body is offset from the central axis of the connecting rod, and the back cutting side includes a first cutting surface and a second cutting surface forming a cutting edge.

[0004] In the existing technology, the cutting surface of the ultrasonic scalpel rod is arc-shaped, and the cutting part has a conical structure with the smallest cross-sectional area at the tip. The entire cutting part has a conical structure, which results in small amplitude and insufficient cutting speed. Utility Model Content

[0005] The purpose of this invention is to provide an ultrasonic cutter bar, which aims to solve the problem of insufficient cutting speed of ultrasonic cutter bars in the prior art.

[0006] This invention is implemented as follows: an ultrasonic scissor, including a scissor body, the length of which is an integer multiple of half the wavelength of the sound wave. The scissor body includes a connecting part, a shaft, and a head. The connecting part is used to connect to a generator. The two ends of the shaft are respectively connected to the connecting part and the head. The head is used for ultrasonic operation. The connecting part has a proximal section, and the head has a distal section. The lengths of the proximal and distal sections are respectively consistent with the length corresponding to half the wavelength, and the volume or weight of the proximal section is greater than that of the distal section.

[0007] Furthermore, the distal segment has a cutting area for cutting operations, the cutting area is provided with a fine part, the fine part has a groove, the groove is arranged in a concave manner; or, the fine part is arranged in a hook shape; or, the fine part is arranged in a blade shape.

[0008] Furthermore, a cutting center is formed along the diameter center of the distal segment, the cutting center is located in the cutting area, and the cutting center has an indentation groove, the indentation groove being arranged in a concave manner in the direction toward the shaft.

[0009] Furthermore, the cutting area has multiple cutting surfaces, each of which is arranged at intervals along the circumference. The cutting surfaces are provided with an anti-slip structure, which is used to enhance the gripping force of the cutting area.

[0010] Furthermore, the surface of the cut surface is provided with an anti-adhesion coating, which fully covers the cut surface.

[0011] Furthermore, the rod body is arranged in a direct, gradually decreasing shape along the direction away from the cutting area.

[0012] Furthermore, the shaft is provided with multiple rubber-coated portions, each of which is arranged at intervals along the length of the shaft, and the roughness of the rubber-coated portion is greater than Ra6.3.

[0013] Furthermore, the length of the main body of the tool holder is 7 times the half wavelength of the sound wave, or the length of the main body of the tool holder is 8 times the half wavelength of the sound wave.

[0014] Furthermore, a transition section is formed between the pole connector and the pole body. The transition section is smoothly arranged and includes a front transition section and a rear transition section. The front transition section and the rear transition section are integrally formed. The rear transition section is aligned with and flush with the pole body. The front transition section gradually decreases in diameter along the direction away from the pole connector. The pole connector is provided with a pole boss, the diameter of which is larger than the diameter of the pole body. Alternatively, the pole connector is provided with a pole hole that extends inward. The pole body is provided with a body platform that extends vertically along the length of the pole body.

[0015] An ultrasonic scalpel device includes an ultrasonic scalpel rod, a main unit, and an excitation switch, wherein the ultrasonic scalpel rod and the excitation switch are respectively assembled with the main unit.

[0016] Compared with the prior art, the ultrasonic cutter bar provided by this utility model has a larger volume or weight at the proximal end than at the distal end. This effectively increases the amplitude of the cutter bar body during ultrasonic operations and significantly increases the cutting speed at the bar head, thereby improving work efficiency. Furthermore, it enables cutting operations on some delicate parts through the bar head. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the ultrasonic cutter bar provided by this utility model;

[0018] Figure 2 This is a schematic diagram showing the length of the ultrasonic cutter bar and the length corresponding to the sound wave provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the anti-slip structure of the ultrasonic cutter bar provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the cutting area of ​​the ultrasonic cutter bar provided by this utility model;

[0021] Figure 5 This is a schematic diagram of the layout of the body platform of the ultrasonic cutter bar provided by this utility model;

[0022] Figure 6 This is a schematic diagram of the layout of the rubber-coated part of the ultrasonic knife bar provided by this utility model;

[0023] Figure 7 This is a connection diagram of the ultrasonic cutter bar provided by this utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] Reference Figure 1-7 The image shown is a preferred embodiment of the present invention.

[0028] An ultrasonic scalpel handle includes a handle body whose length is an integer multiple of half the wavelength of the sound wave. The handle body includes a connecting part 1, a body 2, and a head 3. The connecting part 1 is used to connect to a generator. The two ends of the body 2 are respectively connected to the connecting part 1 and the head 3. The head 3 is used for ultrasonic operation. The connecting part 1 has a proximal section 11, and the head 3 has a distal section 31. The lengths of the proximal section 11 and the distal section 31 are respectively consistent with the lengths corresponding to half the wavelength, and the volume or weight of the proximal section 11 is greater than that of the distal section 31.

[0029] The ultrasonic cutter bar described above, because the volume or weight of the proximal section 11 is greater than that of the distal section 31, effectively increases the amplitude of the cutter bar body during ultrasonic operation. At the same time, it significantly increases the cutting speed of the bar head 3, thereby improving work efficiency. Furthermore, the bar head 3 enables cutting operations on some delicate parts.

[0030] The overall length of the tool holder body is an integer multiple of half the wavelength of the sound wave, and its formula is 1 / 2λ, where λ is the wavelength of one cycle of the natural frequency of the tool holder body.

[0031] The distal section 31 has a cutting area 32, which is used for cutting operations. The cutting area 32 is equipped with a fine part to realize the cutting operation of some fine parts.

[0032] The fine part has a groove 33, which is arranged in a recessed manner; this enables cutting operations on some fine parts.

[0033] Alternatively, the fine parts can be arranged in a hook-like shape at 35° to enable cutting operations on some fine parts.

[0034] Alternatively, the fine parts are arranged in a blade-like 36-fold pattern to enable cutting operations on some delicate parts.

[0035] A cutting center is formed along the diameter center of the distal segment 31. The cutting center is located in the cutting area 32 and has an inner groove. The inner groove is arranged in a concave manner along the direction towards the rod body 2. In this way, under the action of the inner groove, the peripheral cross-section of the inner groove becomes smaller, thereby concentrating the energy, accelerating the cutting speed, and improving the cutting efficiency.

[0036] The cutting area 32 has multiple cutting surfaces, which are arranged at intervals along the circumference. The cutting surfaces are provided with anti-slip structures 34, which are used to enhance the gripping force of the cutting area 32 and facilitate ultrasonic operation.

[0037] Alternatively, the roughness of the cutting surface can be directly increased to enhance its gripping force, facilitating ultrasonic operations.

[0038] The surface of the cutting surface is covered with an anti-adhesion coating, which completely covers the cutting surface. Under the action of the anti-adhesion coating, when the rod head 3 is working, it effectively avoids the adhesion of soft tissue or blood during cutting, thus avoiding the risk of failure in cutting bones and / or tissues and clotting of blood vessels.

[0039] The anti-adhesion coating includes at least one of the following materials: silicone material, high-performance silicone resin, coloring inorganic pigment, polysiloxane leveling agent, wetting agent, anti-settling agent, ester, ether, alcohol solvent complex, copolymer of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) (FEP), liquid FEP, FEP, ceramic complex, liquid FEP ceramic epoxy complex, polytetrafluoroethylene (PTFE), PTFE.

[0040] The distal section 31 is arranged in the shape of a cylinder of equal diameter, which increases the cross-sectional area of ​​the distal section 31 and thus increases the cutting speed.

[0041] The distal segment 31 can also be arranged as a cylinder with a non-uniform diameter to increase the cross-sectional area of ​​the distal segment 31, thereby increasing the cutting speed.

[0042] Furthermore, the shaft 2 is arranged in a gradually decreasing direction away from the cutting area 32, which effectively increases the amplitude of the main body of the tool holder.

[0043] The shaft 2 is provided with multiple rubber-coated parts 4, and each rubber-coated part 4 is arranged at intervals along the length of the shaft 2. Under the action of each rubber-coated part 4, the main body of the tool bar is effectively isolated from the inner tube wall 6, avoiding the generation of noise from contact between the main body of the tool bar and the metal, preventing the main body of the tool bar from breaking, and improving the service life of the main body of the tool bar.

[0044] The roughness of the rubber coating 4 is greater than Ra6.3, which effectively enhances the adhesion of the soft rubber coating 4, achieves effective isolation between the tool holder body and the inner tube wall 6, avoids the tool holder body from contacting the metal and generating noise, avoids the tool holder body from breaking, and improves the service life of the tool holder body.

[0045] The length of the main body of the scalpel is 7 times that of half the wavelength of the sound wave, which has a wide range of clinical applications and can be made into an integrated scalpel head and an integrated scalpel body.

[0046] Alternatively, the length of the blade body can be 8 times half the wavelength of the sound wave, which has a wide range of clinical applications and can be made into an integrated blade head and an integrated blade body.

[0047] A transition section 5 is formed between the pole connecting part 1 and the pole body 2. The transition section 5 is arranged in a smooth shape and includes a front crossing section and a rear crossing section. The front crossing section and the rear crossing section are integrally formed. The rear crossing section is connected to the pole body 2 and is arranged flush with it. The front crossing section is arranged with a gradually decreasing diameter along the direction away from the pole connecting part 1.

[0048] Thus, the transition section 5 facilitates the transmission of ultrasonic waves, improving the working efficiency of the tool holder body.

[0049] The rod connecting part 1 is provided with a rod boss, the diameter of which is larger than the diameter of the rod body 2; this facilitates the connection between the tool holder body and the generator.

[0050] Alternatively, the rod connecting part 1 may have a rod hole that extends inwards, facilitating the connection between the tool holder body and the generator.

[0051] The distance between the rod boss or rod hole and the proximal section 11 is no more than 10mm; this facilitates the connection between the tool holder body and the generator.

[0052] The pole body 2 is provided with a body platform 21, which extends vertically along the length of the pole body 2; under the action of the body platform 21, the sound wave transmission is more concentrated.

[0053] The rod connecting part 1 is connected to the generator via internal or external threads or other structures, and then to the ultrasonic host.

[0054] An ultrasonic scalpel device includes an ultrasonic scalpel rod, a main unit, and an excitation switch, wherein the ultrasonic scalpel rod and the excitation switch are respectively assembled with the main unit.

[0055] In this way, by triggering the switch to output a signal, the host computer controls the ultrasonic tool bar to perform ultrasonic operations.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrasonic cutter bar, characterized in that, The device includes a main body with a length that is an integer multiple of half the wavelength of an acoustic wave. The main body includes a connecting part, a shaft, and a head. The connecting part is used to connect to a generator. The two ends of the shaft are respectively connected to the connecting part and the head. The head is used for ultrasonic operation. The connecting part has a proximal section, and the head has a distal section. The lengths of the proximal and distal sections are respectively consistent with the lengths corresponding to half the wavelength, and the volume or weight of the proximal section is greater than that of the distal section.

2. The ultrasonic cutter bar as described in claim 1, characterized in that, The distal segment has a cutting area for cutting operations. The cutting area is provided with a fine part, which has a groove. The groove is arranged in a concave manner; or, the fine part is arranged in a hook shape; or, the fine part is arranged in a blade shape.

3. The ultrasonic cutter bar as described in claim 2, characterized in that, A cutting center is formed along the diameter center of the distal segment, the cutting center is located in the cutting area, and the cutting center has an indentation groove, the indentation groove being arranged in a concave manner in the direction toward the shaft.

4. The ultrasonic cutter bar as described in claim 2, characterized in that, The cutting area has multiple cutting surfaces, which are arranged at intervals along the circumference. Each cutting surface is provided with an anti-slip structure to enhance the gripping force of the cutting area.

5. The ultrasonic cutter bar as described in claim 4, characterized in that, The surface of the cut surface is provided with an anti-adhesion coating, which completely covers the cut surface.

6. The ultrasonic scissor bar as described in any one of claims 2-5, characterized in that, The shaft is arranged in a direct, gradually decreasing shape along the direction away from the cutting area.

7. The ultrasonic scissor bar as described in any one of claims 1-5, characterized in that, The shaft has multiple rubber-coated sections, which are arranged at intervals along the length of the shaft. The roughness of each rubber-coated section is greater than Ra6.

3.

8. The ultrasonic scissor bar as described in any one of claims 1-5, characterized in that, The length of the main body of the tool holder is 7 times the half wavelength of the sound wave, or the length of the main body of the tool holder is 8 times the half wavelength of the sound wave.

9. The ultrasonic scissor bar as described in any one of claims 1-5, characterized in that, A transition section is formed between the pole connector and the pole body. The transition section is smoothly arranged and includes a front transition section and a rear transition section. The front transition section and the rear transition section are integrally formed. The rear transition section is aligned with and flush with the pole body. The front transition section has a gradually decreasing diameter along the direction away from the pole connector. The pole connector is provided with a pole boss, the diameter of which is larger than the diameter of the pole body. Alternatively, the pole connector is provided with a pole hole that extends inward. The pole body is provided with a body platform that extends vertically along the length of the pole body.

10. An ultrasonic scalpel instrument, characterized in that, It includes an ultrasonic scalpel bar, a main unit, and an excitation switch as described in any one of claims 1-5, wherein the ultrasonic scalpel bar and the excitation switch are respectively assembled with the main unit.

Images