An ultralong composite structure ultrasonic surgical knife center rod

Abstract

The present application belongs to the technical field of the center rod of surgical knives, and particularly relates to an ultralong composite structure center rod of an ultrasonic surgical knife. The present application is applied to an ultralong single-hole supplementary surgery, and can realize the effect that the energy of the front end center beam of the working surface of the ultralong distance composite structure center rod is reduced by 8-12 dB than the rear end beam. For specific obese patients, the robot mechanical arm will consume a part of the stroke, and after the stroke of the center rod is lengthened, the static impedance of the center as a whole can be greatly reduced, the energy consumption of the center rod itself during work is reduced (the self-heating of the knife rod is reduced), the minimum emission response of the ultralong distance composite structure center rod is greatly optimized, the effect of the center rod during cutting and hemostasis is greatly improved, and the specifications of ultrasonic knife ultralong single-hole and robot surgery in the domestic and international markets are filled.

Description

Technical Field

[0001] This invention belongs to the field of surgical scalpel center rod technology, and relates to an ultra-long composite structure ultrasonic surgical scalpel center rod. Background Technology

[0002] In the 1970s, minimally invasive techniques developed rapidly, and currently, minimally invasive surgery is applied to nearly 10 surgical procedures, including general surgery, obstetrics and gynecology, cardiothoracic surgery, urology, pediatric surgery, orthopedics, neurosurgery, and ophthalmology. The development of minimally invasive surgery has spurred the development of surgical instruments, such as endoscopic ultrasound, ultrasonic scalpels, microsurgical instruments, and various endoscopic cutting and anastomosis devices. These emerging surgical instruments, in turn, have further promoted the development of minimally invasive surgery, gradually evolving into a branch of the medical device industry. For specific obese patients and in conjunction with robotic surgery, such as ultra-long single-port ultrasonic scalpel surgery and robotic surgery, an ultra-long composite structure ultrasonic scalpel center rod is required. However, existing ultra-long composite structure ultrasonic scalpel center rods, due to their extended operating stroke, struggle to significantly reduce the overall static impedance of the center. The center rod itself consumes more energy during operation, and the minimum emission response is difficult to optimize, affecting the cutting and hemostasis effect.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses an ultrasonic scalpel [application number: 201910753038.9]. This ultrasonic scalpel includes a blade head and an ultrasonic transmission rod connected to one end of the blade head. The blade head includes a blade surface, a blade back, and a first sidewall and a second sidewall disposed between the blade surface and the blade back. The blade head is bent towards the second sidewall in a direction away from the ultrasonic transmission rod; the blade head is also bent towards the blade surface in a direction away from the ultrasonic transmission rod. However, this solution is not suitable for ultra-long single-port and robotic surgery. When performing surgery on specific obese patients or in conjunction with robotic surgery, due to the increased operating stroke, it is still difficult to significantly reduce the overall static impedance of the center. The energy consumption of the central rod itself is still relatively high during operation, and there is a deficiency that the minimum emission response is difficult to optimize, affecting the cutting and hemostasis effect. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an ultra-long composite structure ultrasonic surgical scalpel center rod.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A long composite structure ultrasonic surgical scalpel with a central rod includes a scalpel body. The scalpel body has a first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, and thirteenth central rod segments. The thirteenth central rod segment is connected to the scalpel body. The first central rod segment has a single-stage amplification structure, and the second central rod segment has a transverse wave control structure. The fourth central pole segment is equipped with a multi-parabolic structure; the fifth central pole segment is equipped with a common parabolic structure; the sixth central pole segment is equipped with a high-frequency amplification structure; the seventh central pole segment is equipped with a transverse wave suppression structure; the eighth central pole segment is equipped with an initial-section anti-overflow structure; the ninth central pole segment is equipped with a mid-section anti-overflow structure; the tenth central pole segment is equipped with a tail-section anti-overflow structure; the eleventh central pole segment is equipped with an anti-noise structure; the twelfth central pole segment is equipped with a wave crest control structure; and the thirteenth central pole segment is equipped with a high-amplitude output structure.

[0007] In the aforementioned ultra-long composite structure ultrasonic surgical knife central rod, the first-stage amplification structure includes a tail cone-shaped body and a first catenary-shaped body disposed on the first central rod segment, and the first central rod segment is also provided with a first catenary step structure.

[0008] In the aforementioned ultra-long composite structure ultrasonic surgical scalpel central rod, the transverse wave control structure includes a long stepped ascending structure disposed on the second central rod segment, and the diameter of the third central rod segment is larger than the diameter of the second central rod segment.

[0009] In the aforementioned ultra-long composite structure ultrasonic surgical knife central rod, the multi-parabolic structure includes a front and rear double Gaussian parabolic body and a first Gaussian structure body disposed on the fourth central rod segment, and the common parabolic structure includes a second Gaussian structure body disposed on the fifth central rod segment. One end of the second Gaussian structure body is connected to the fourth central rod segment, and the other end is connected to the fifth central rod segment.

[0010] In the aforementioned ultra-long composite structure ultrasonic surgical scalpel central rod, the high-frequency amplification structure includes a first stepped descending structure disposed on the sixth central rod segment. The sixth central rod segment is also provided with a first conical body and a second conical body, which are connected to form a dumbbell-shaped structure.

[0011] In the aforementioned ultra-long composite structure ultrasonic surgical scalpel central rod, the transverse wave suppression structure includes a second-step descending structure and a first-step ascending structure disposed on the seventh central rod segment.

[0012] In the aforementioned ultra-long composite structure ultrasonic surgical scalpel central rod, the initial anti-overflow structure includes a third Gaussian structure on the eighth central rod segment, the middle anti-overflow structure includes a fourth Gaussian structure on the ninth central rod segment, and the tail anti-overflow structure includes a fifth Gaussian structure on the tenth central rod segment.

[0013] In the aforementioned ultra-long composite structure ultrasonic surgical knife central rod, the noise prevention structure includes a stepped ascending structure in the middle and front section of the eleventh central rod segment.

[0014] In the aforementioned ultra-long composite structure ultrasonic surgical scalpel central rod, the wave peak control structure includes an end-step ascending structure disposed on the twelfth central rod segment.

[0015] In the aforementioned ultra-long composite structure ultrasonic surgical knife central rod, the high amplitude output structure includes a second catenary and a second catenary step structure disposed on the thirteenth central rod segment.

[0016] Compared with existing technologies, the advantages of this invention are:

[0017] 1. This invention is applied to ultra-long single-port supplementary surgery, employing an ultra-long-spacing composite structure center rod. By incorporating a first-stage amplification structure, a transverse wave control structure, a multi-parabolic structure, a common parabolic structure, a high-frequency amplification structure, a transverse wave suppression structure, an initial anti-overflow structure, a middle anti-overflow structure, a tail anti-overflow structure, an anti-noise structure, a peak control structure, and a high-amplitude output structure, it achieves an 8-12 dB reduction in energy between the front and rear beams of the ultra-long-spacing composite structure center rod. For specific obese patients, the robotic arm may consume a portion of the travel. By extending the travel of the center rod, the overall static impedance of the center rod is significantly reduced, decreasing its energy consumption during operation (reducing heat generation). This greatly optimizes the minimum emission response of the ultra-long-spacing composite structure center rod, significantly improving its effectiveness in cutting and hemostasis. This fills a gap in the specifications for ultra-long single-port ultrasonic scalpels and robotic surgery in the domestic and international markets.

[0018] 2. This invention can solve the problems of uneven energy distribution and stress dispersion under the high frequency and high amplitude output of the central rod.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure from another direction of the present invention.

[0022] Figure 3 This is the amplitude curve distribution diagram of the present invention.

[0023] In the diagram: 1. Scalpel body; 2. First central segment; 3. Second central segment; 4. Third central segment; 5. Fourth central segment; 6. Fifth central segment; 7. Sixth central segment; 8. Seventh central segment; 9. Eighth central segment; 10. Ninth central segment; 11. Eleventh central segment; 12. Twelfth central segment; 13. Thirteenth central segment; 14. First-stage amplification structure; 15. Shear wave control structure; 16. Multi-parabolic structure; 17. Common parabolic structure; 18. High-frequency amplification structure; 19. Shear wave suppression structure; 20. Initial stage anti-spillage structure; 21. Middle stage anti-spillage structure; 22. Tail stage anti-spillage structure; 23. Anti-noise structure; 24. Wave crest control structure. 5. High amplitude output structure; 26. Tail-end conical body; 27. First catenary body; 28. First catenary staircase structure; 29. ​​Long staircase ascending structure; 30. Front and rear double Gaussian parabolic bodies; 31. First Gaussian structure; 32. Second Gaussian structure; 33. First staircase descending structure; 34. First conical body; 35. Second conical body; 36. Second staircase descending structure; 37. First staircase ascending structure; 38. Third Gaussian structure; 39. Fourth Gaussian structure; 40. Fifth Gaussian structure; 41. Middle and front section staircase ascending structure; 42. End staircase ascending structure; 43. Second catenary body; 44. Second catenary staircase structure; 45. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-3As shown, an ultra-long composite structure ultrasonic scalpel central rod includes a scalpel body 1. The scalpel body 1 has a first central rod segment 2, a second central rod segment 3, a third central rod segment 4, a fourth central rod segment 5, a fifth central rod segment 6, a sixth central rod segment 7, a seventh central rod segment 8, an eighth central rod segment 9, a ninth central rod segment 10, a tenth central rod segment 11, an eleventh central rod segment 12, a twelfth central rod segment 13, and a thirteenth central rod segment 14. The thirteenth central rod segment 14 is connected to the scalpel body 1. The first central rod segment 2 has a single-stage amplification structure 15, the second central rod segment 3 has a transverse wave control structure 16, and the fourth central rod segment 14 has a single-stage amplification structure 15. The central pole segment 5 is equipped with a multi-parabolic structure 17, the fifth central pole segment 6 is equipped with a common parabolic structure 18, the sixth central pole segment 7 is equipped with a high-frequency amplification structure 19, the seventh central pole segment 8 is equipped with a transverse wave suppression structure 20, the eighth central pole segment 9 is equipped with an initial stage anti-overflow structure 21, the ninth central pole segment 10 is equipped with a middle stage anti-overflow structure 22, the tenth central pole segment 11 is equipped with a tail stage anti-overflow structure 23, the eleventh central pole segment 12 is equipped with an anti-noise structure 24, the twelfth central pole segment 13 is equipped with a wave crest control structure 25, and the thirteenth central pole segment 14 is equipped with a high amplitude output structure 26.

[0026] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0027] In order to ensure that the energy is fully transferred from the transducer to the center rod, the first central rod segment 2 is equipped with a first-stage amplification structure 15 to make a large diameter change for the first half wavelength connected. The first-stage amplification structure 15 can also eliminate stress problems, so as to fully transfer the energy without leakage, and at the same time amplify the energy amplitude, which is also the first stage of amplitude amplification.

[0028] To ensure that energy is fully transferred from the transducer to the central rod, the second central rod segment 3 effectively controls the amplification of the transverse wave ratio. At the same time, considering the imbalance of internal stress, a transverse wave control structure 16 is set up to improve the amplification ratio before and after the transverse wave, and effectively prevent the generation of transverse waves, ensuring effective transmission of longitudinal waves and ensuring the effective increase of amplitude.

[0029] The third central rod segment 4 is to ensure the effective amplification of the central rod amplitude. This stage belongs to the front section of the central rod. Because the structure of this segment needs to consider the strength of the overall structure, no structural design is made for this segment to ensure the strength of the overall structure and avoid abnormal noise or tearing of the internal crystal structure of the metal when the central rod is working.

[0030] To ensure effective amplitude growth, the fourth central segment 5 must prevent energy leakage and the generation of transverse waves while also ensuring an effective increase in amplitude. This is achieved by setting up a multi-parabolic structure 17 to offset the stress changes caused by amplitude amplification.

[0031] To ensure the integrity of the overall amplitude transmission and to ensure the effective inheritance of the structural changes of the previous section, the fifth central segment 6 is equipped with a common parabolic structure 18 to ensure the effective transmission of amplitude at the starting end of the finite element boundary, thus enabling the effective transmission of longitudinal waves.

[0032] To ensure the integrity of the overall amplitude transmission, the sixth central pole segment 7 is equipped with a high-frequency amplification structure 19, which lengthens and slows down the amplitude change, ensuring a smooth transition of the preceding structure. The high-frequency amplification structure 19 can also amplify the high-frequency energy again.

[0033] To ensure the integrity of the overall amplitude transmission, the seventh central rod segment 8 is the middle section of the central rod. The front section of this segment shares a part of the high-frequency amplification structure 19 with the previous section. After the high-frequency energy is amplified, the stress is effectively released to avoid the generation of transverse waves and energy leakage. In the front section of this segment, a transverse wave suppression structure 20 is set to further suppress the generation of transverse waves caused by the excessive length of the central rod, thus ensuring the effective transmission of amplitude.

[0034] To ensure the integrity of the overall amplitude transmission, the amplitude of the first section of the eighth central pole segment 9 varies greatly. In this half-wavelength section, an initial anti-overflow structure 21 is set to prevent energy leakage caused by the generation of transverse waves.

[0035] To ensure the integrity of the overall amplitude transmission, the ninth central pole segment 10 is equipped with a mid-section anti-overflow structure 22 to prevent energy leakage caused by the generation of transverse waves.

[0036] To ensure the integrity of the overall amplitude transmission, the tenth central pole segment 11 is equipped with a tail section anti-overflow structure 23 to prevent energy leakage caused by the generation of transverse waves.

[0037] To ensure effective amplitude growth, the eleventh central segment 12 mainly lengthens the amplitude change while effectively slowing down the amplification of the transverse wave and avoiding abnormal noise. By setting up an anti-abnormal noise structure 24, the effective increase of amplitude is ensured.

[0038] To ensure effective amplitude growth, the twelfth central segment 13 has a wave crest control structure 25 at its end, which further amplifies the amplitude while reducing the mass at the wave crest to prevent the generation of transverse waves.

[0039] To ensure stable energy output, the thirteenth central rod segment 14 has a high-amplitude output structure 26 at its end, which enables the central rod to achieve high-amplitude energy output, stable output of high longitudinal waves and low transverse waves, thereby achieving the cutting and coagulation effect on soft tissue.

[0040] This structure is used in ultra-long single-port supplementary surgery, employing an ultra-long-span composite structure center rod. The required reduction parameters vary depending on the length of the center rod. This achieves an 8-12 dB reduction in energy of the front-end center beam compared to the rear-end beam of the ultra-long-span composite structure center rod. For specific obese patients, the robotic arm may reduce its travel distance. Extending the center rod's travel significantly reduces the overall static impedance of the center rod, decreasing its energy consumption during operation (reducing heat generation). This greatly optimizes the minimum emission response of the ultra-long-span composite structure center rod, significantly improving its effectiveness in cutting and hemostasis. It fills a gap in the domestic and international markets for ultra-long single-port ultrasonic scalpels and robotic surgery specifications, currently boasting the longest ultrasonic scalpel (the maximum travel achievable with a current ultrasonic scalpel and robotic arm without compromising accuracy).

[0041] Combination Figure 1 , Figure 2 As shown, the first-stage amplification structure 15 includes a tail cone-shaped body 27 and a first catenary-shaped body 28 disposed on the first central rod segment 2, and the first central rod segment 2 is also provided with a first catenary stepped structure 29.

[0042] Specifically, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall shapes of parabolic structures such as conical, exponential, catenary, and Gaussian structures are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0043] When X=1, in order to ensure that the energy is fully transferred from the transducer to the center rod, the first central rod segment 2 is equipped with a first catenary step structure 29 to make a large diameter change for the first half wavelength connected. In order to eliminate stress problems, two structural changes are selected: the tail cone-shaped body 27 and the first catenary-shaped body 28. This design not only fully transfers energy without leakage, but also amplifies the energy amplitude, which is also the first stage of amplitude amplification.

[0044] Combination Figure 1-3 As shown, the transverse wave control structure 16 includes a long stepped ascending structure 30 disposed on the second central rod segment 3, and the diameter of the third central rod segment 4 is larger than the diameter of the second central rod segment 3.

[0045] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0046] When X=2, the second central rod segment 3 is designed to ensure that the energy is fully transferred from the transducer to the central rod, effectively control the amplification of the transverse wave ratio, and take into account the imbalance of internal stress. The half-wavelength of this section adopts a long stepped upward structure 30. The first 1 / 4 of the half-wavelength adopts a stepped structure design to improve the amplification ratio before and after, and effectively prevent the generation of transverse waves, ensure effective transmission of longitudinal waves, and ensure the effective increase of amplitude.

[0047] When X=3, the third central rod segment 4 is the front segment of the central rod to ensure the effective amplification of the central rod amplitude. Because the structure of this segment needs to consider the strength of the overall structure, no structural design is made for this segment to ensure the strength of the overall structure and avoid abnormal noise or tearing of the internal crystal structure of the metal during the operation of the central rod.

[0048] The multi-parabolic structure 17 includes a front and rear double Gaussian parabolic body 31 and a first Gaussian structure 32 disposed on the fourth central rod segment 5. The common parabolic structure 18 includes a second Gaussian structure 33 disposed on the fifth central rod segment 6. One end of the second Gaussian structure 33 is connected to the fourth central rod segment 5, and the other end is connected to the fifth central rod segment 6.

[0049] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0050] When X=4, in order to ensure the effective increase of amplitude, the fourth central rod segment 5 must prevent energy leakage and generate transverse waves, and also ensure the effective increase of amplitude. This segment adopts a front and rear double Gaussian parabolic body 31, and the central end adopts a first Gaussian structure 32 to offset the stress change caused by amplitude amplification.

[0051] When X=5, in order to ensure the integrity of the overall amplitude transmission and to ensure the effective inheritance of the structural changes of the previous section, the fifth central rod segment 6 is equipped with a second Gaussian structural body 33 in the front section of this structure to ensure the effective transmission of amplitude at the starting end of the finite element boundary, so that the longitudinal wave is effectively transmitted.

[0052] Combination Figure 1-2 As shown, the high-frequency amplification structure 19 includes a first stepped descending structure 34 disposed on the sixth central rod segment 7. The sixth central rod segment 7 is also provided with a first conical body 35 and a second conical body 36. The first conical body 35 and the second conical body 36 are connected to form a dumbbell-shaped structure.

[0053] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0054] When X=6, in order to ensure the integrity of the overall amplitude transmission, the sixth central rod segment 7 has a first step descending structure 34 set at the front end of the half wavelength of this segment to lengthen and delay the change in amplitude, ensuring a smooth transition of the front structure. At the same time, the second half of this segment is connected by the first cone 35 and the second cone 36 to form a dumbbell-shaped structure, which amplifies the high-frequency energy again.

[0055] The shear wave suppression structure 20 includes a second-step descending structure 37 and a first-step ascending structure 38 disposed on the seventh central pole segment 8.

[0056] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0057] When X=7, the seventh central rod segment 8 is designed to ensure the integrity of the overall amplitude transmission. This segment is the middle section of the central rod. The front section of this segment shares the dumbbell-shaped structure formed by the connection of the first conical body 35 and the second conical body 36 with the previous section. After high-frequency energy amplification, the stress is effectively released to avoid the generation of transverse waves and energy leakage. In the front section of this segment node, a composite stepped structure is formed by setting the second step descending structure 37 and the first step ascending structure 38. At the end of this segment, a composite stepped structure design with 1 / 19 wavelength and 1 / 36 size steps is adopted to further suppress the generation of transverse waves caused by the excessive length of the central rod and ensure the effective transmission of amplitude.

[0058] The initial anti-overflow structure 21 includes a third Gaussian structure 39 disposed on the eighth central pole segment 9, the middle anti-overflow structure 22 includes a fourth Gaussian structure 40 disposed on the ninth central pole segment 10, and the tail anti-overflow structure 23 includes a fifth Gaussian structure 41 disposed on the tenth central pole segment 11.

[0059] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0060] When X=8, in order to ensure the integrity of the overall amplitude transmission, the amplitude of the first part of the eighth central rod segment 9 is relatively large. In this half-wavelength section, the third Gaussian structure 39 is set to prevent the energy leakage caused by the generation of transverse waves.

[0061] When X=9, in order to ensure the integrity of the overall amplitude transmission, the ninth central rod segment 10 has a fourth Gaussian structure 40 set at half wavelength 1 / 15 wavelength to prevent energy leakage caused by the generation of transverse waves.

[0062] When X=10, in order to ensure the integrity of the overall amplitude transmission, the tenth central rod segment 11 sets a fifth Gaussian structure 41 at 1 / 13 wavelength of this half-wavelength wave to prevent energy leakage caused by the generation of transverse waves.

[0063] Combination Figure 2-3 As shown, the noise prevention structure 24 includes a mid-front stepped ascending structure 42 installed on the eleventh central pole segment 12.

[0064] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0065] When X=11, the eleventh central segment 12 is designed to ensure effective amplitude growth. This segment mainly lengthens the amplitude change while also effectively slowing down the amplification of the transverse wave to avoid abnormal noise. The half-wavelength of this segment is designed with a stepped upward structure 42 in the middle and front sections. The step ratio between the front and rear sections of the half-wavelength is 5:1, which ensures an effective increase in amplitude.

[0066] Combination Figure 1 , Figure 2 As shown, the wave crest control structure 25 includes an end-step ascending structure 43 disposed on the twelfth central pole segment 13.

[0067] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0068] When X=12, in order to ensure effective amplitude growth, the twelfth central segment 13 has an end step upward structure 43 at its end, which further amplifies the amplitude while reducing the mass at the wave crest to avoid generating transverse waves.

[0069] Combination Figure 1-3 As shown, the high amplitude output structure 26 includes a second catenary 44 and a second catenary step structure 45 disposed on the thirteenth central rod segment 14.

[0070] In this embodiment, the central rod model is determined based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0071] When X=13, in order to ensure stable energy output, the thirteenth central rod segment 14 adopts a second catenary 44 and a second catenary stepped structure 45 at the end of the central rod, so that the central rod can obtain high amplitude energy output, high longitudinal wave and low transverse wave stable output, thereby achieving the cutting and coagulation effect on soft tissue.

[0072] The long-step upward structure 30, the first-step downward structure 34, the second-step downward structure 37, the first-step upward structure 38, the middle and front-section upward structure 42, and the end-step upward structure 43 mentioned in this invention are described in the accompanying drawings. Figure 2 As shown, viewed from left to right, the downward structure is represented by the diameter of the left rod being larger than the diameter of the right rod, forming a stepped structure with the left side larger than the right. The upward structure is represented by the diameter of the left rod being smaller than the diameter of the right rod, forming a stepped structure with the left side smaller than the right. "Length" and "middle" are adjectives used to distinguish them. The different lengths of the stepped structures result in different effects. The first catenary stepped structure 29 is a stepped structure formed by the difference in the diameters of the rods at both ends of the first catenary 28, and the second catenary stepped structure 45 is a stepped structure formed by the difference in the diameters of the rods at both ends of the second catenary 44.

[0073] The working principle of this invention is:

[0074] Based on the required operating frequency, amplitude output, size control, and horizontal dimension emission response, the central rod model is determined, and various overall parabolic structures such as conical, exponential, catenary, and Gaussian shapes are selected. Where x represents the abscissa of the model, y represents the ordinate of the model, and A represents the model parameters, which determine the abscissa-ordinate relationship of the model. The central rod is composed of multiple X half-wavelength structures, where X > 0 and X is an integer amplitude, which are either amplified or reduced. The combination of multiple structures achieves the final overall structural design requirements and is a fusion of various structural forms.

[0075] When X=1, in order to ensure that the energy is fully transferred from the transducer to the center rod, the first central rod segment 2 is equipped with a first catenary step structure 29 to make a large diameter change for the first half wavelength connected. In order to eliminate stress problems, two structural changes are selected: the tail cone-shaped body 27 and the first catenary-shaped body 28. This not only fully transfers the energy without leakage, but also amplifies the energy amplitude, which is also the first stage of amplitude amplification.

[0076] When X=2, the second central rod segment 3 is designed to ensure that the energy is fully transferred from the transducer to the central rod, effectively control the amplification of the transverse wave ratio, and take into account the imbalance of internal stress. The half-wavelength of this section adopts a long stepped upward structure 30. The first 1 / 4 of the half-wavelength adopts a stepped structure design to improve the amplification ratio before and after, and effectively prevent the generation of transverse waves, ensure effective transmission of longitudinal waves, and ensure the effective increase of amplitude.

[0077] When X=3, the third central rod segment 4 is the front segment of the central rod to ensure the effective amplification of the central rod amplitude. Because the structure of this segment needs to consider the strength of the overall structure, no structural design is made for this segment to ensure the strength of the overall structure and avoid abnormal noise or tearing of the internal crystal structure of the metal when the central rod is working.

[0078] When X=4, in order to ensure the effective increase of amplitude, the fourth central rod segment 5 must prevent energy leakage and generate transverse waves, and also ensure the effective increase of amplitude. This segment adopts a front and rear double Gaussian parabolic body 31, and the central end adopts a first Gaussian structure 32 to offset the stress change caused by amplitude amplification.

[0079] When X=5, in order to ensure the integrity of the overall amplitude transmission and to ensure the effective inheritance of the structural changes of the previous section, the fifth central rod segment 6 is equipped with a second Gaussian structure 33 in the front section of this structure to ensure the effective transmission of amplitude at the starting end of the finite element boundary, so that the longitudinal wave is effectively transmitted.

[0080] When X=6, in order to ensure the integrity of the overall amplitude transmission, the sixth central rod segment 7 has a first step descending structure 34 set at the front end of the half wavelength of this segment to lengthen and delay the amplitude change, ensuring a smooth transition of the front structure. At the same time, the second half of this segment is connected by the first cone 35 and the second cone 36 to form a dumbbell-shaped structure, which amplifies the high-frequency energy again.

[0081] When X=7, the seventh central rod segment 8 is designed to ensure the integrity of the overall amplitude transmission. This segment is the middle section of the central rod. The front section of this segment shares the dumbbell-shaped structure formed by the connection of the first conical body 35 and the second conical body 36 with the previous section. After high-frequency energy amplification, the stress is effectively released to avoid the generation of transverse waves and energy leakage. In the front section of this segment node, a composite stepped structure is formed by setting the second step descending structure 37 and the first step ascending structure 38. At the end of this segment, a composite stepped structure design with 1 / 19 wavelength and 1 / 36 size steps is adopted to further suppress the generation of transverse waves caused by the excessive length of the central rod and ensure the effective transmission of amplitude.

[0082] When X=8, in order to ensure the integrity of the overall amplitude transmission, the amplitude of the first part of the eighth central rod segment 9 is relatively large. In this half-wavelength section, the third Gaussian structure 39 is set to prevent the energy leakage caused by the generation of transverse waves.

[0083] When X=9, in order to ensure the integrity of the overall amplitude transmission, the ninth central rod segment 10 has a fourth Gaussian structure 40 set at half wavelength 1 / 15 wavelength to prevent energy leakage caused by the generation of transverse waves.

[0084] When X=10, in order to ensure the integrity of the overall amplitude transmission, the tenth central rod segment 11 sets the fifth Gaussian structure 41 at 1 / 13 wavelength of this half-wavelength wave to prevent energy leakage caused by the generation of transverse waves.

[0085] When X=11, the eleventh central rod segment 12 is designed to ensure an effective increase in amplitude. This segment mainly lengthens the amplitude change and also effectively slows down the amplification of the transverse wave to avoid abnormal noise. The half-wavelength of this segment is designed with a stepped upward structure 42 in the middle and front section. The step ratio of the front half-wavelength segment to the rear half-wavelength segment is 5:1, which ensures an effective increase in amplitude.

[0086] When X=12, in order to ensure the effective increase of amplitude, the twelfth central rod segment 13 has an end step upward structure 43 set at the end of this segment to further amplify the amplitude while reducing the mass at the wave crest to avoid generating transverse waves.

[0087] When X=13, to ensure stable energy output, the thirteenth central rod segment 14 employs a second catenary 44 and a second catenary stepped structure 45 at the end of the central rod. This allows the central rod to achieve high-amplitude energy output and stable output of high longitudinal waves and low transverse waves, thereby realizing the cutting and coagulation effect on soft tissue.

[0088] This structure is used in ultra-long single-port supplementary surgery, employing an ultra-long-span composite structure center rod. The required reduction parameters vary depending on the length of the center rod. This design achieves an 8-12 dB reduction in energy of the front-end center beam compared to the rear-end beam of the ultra-long-span composite structure center rod. For specific obese patients, where the robotic arm may reduce its travel, the extended center rod significantly reduces the overall static impedance, decreasing energy consumption during operation (reducing heat generation). This greatly optimizes the minimum emission response of the ultra-long-span composite structure center rod, significantly improving its effectiveness in cutting and hemostasis. It fills a gap in the domestic and international markets for ultra-long single-port ultrasonic scalpels and robotic surgery, currently boasting the longest ultrasonic scalpel.

[0089] It can solve problems such as uneven energy distribution and stress dispersion under the high-frequency, high-amplitude output of the central rod.

[0090] The specific embodiments described herein are merely illustrative examples of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention.

[0091] Although this article extensively uses the following structures: 1. Scalpel body; 2. First central segment; 3. Second central segment; 4. Third central segment; 5. Fourth central segment; 6. Fifth central segment; 7. Sixth central segment; 8. Seventh central segment; 9. Eighth central segment; 10. Ninth central segment; 11. Eleventh central segment; 12. Twelfth central segment; 13. Thirteenth central segment; 14. First-stage amplification structure; 15. Transverse wave control structure; 16. Multi-parabolic structure; 17. Common parabolic structure; 18. High-frequency amplification structure; 19. Transverse wave suppression structure; 20. Initial-stage anti-overflow structure; 21. Middle-stage anti-overflow structure; 22. Tail-stage anti-overflow structure; 23. Anti-noise structure; 24. Wave crest control structure; 25. High-amplitude transmission... The terms used include 26, 27, 28, 29, 30, 31, 32, 33, 44, 45, 46, 47, 48, 49, 40, 41, 42, 45, 46, 47, 48, 49, 40, 41, 42, 43, 44, 45, 46, 47, 48, 39, 40, 41, 42, 43, 44, 45, 46, 45, 46, 47, 48, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 4 ...

Claims

1. A central rod of an ultra-long composite structure ultrasonic scalpel, comprising a scalpel body (1), characterized in that, The scalpel body (1) is provided with a first central rod segment (2), a second central rod segment (3), a third central rod segment (4), a fourth central rod segment (5), a fifth central rod segment (6), a sixth central rod segment (7), a seventh central rod segment (8), an eighth central rod segment (9), a ninth central rod segment (10), a tenth central rod segment (11), an eleventh central rod segment (12), a twelfth central rod segment (13), and a thirteenth central rod segment (14). The thirteenth central rod segment (14) is connected to the scalpel body (1). The first central rod segment (2) is provided with a first-stage amplification structure (15). The second central rod segment (3) is provided with a transverse wave control structure (16). The fourth central rod segment (5) is provided with a multi-parabolic structure. (17) The fifth central pole segment (6) is provided with a common parabolic structure (18), the sixth central pole segment (7) is provided with a high frequency amplification structure (19), the seventh central pole segment (8) is provided with a transverse wave suppression structure (20), the eighth central pole segment (9) is provided with a primary anti-overflow structure (21), the ninth central pole segment (10) is provided with a middle anti-overflow structure (22), the tenth central pole segment (11) is provided with a tail anti-overflow structure (23), the eleventh central pole segment (12) is provided with an anti-noise structure (24), the twelfth central pole segment (13) is provided with a wave crest control structure (25), and the thirteenth central pole segment (14) is provided with a high amplitude output structure (26).

2. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The first-stage amplification structure (15) includes a tail cone-shaped body (27) and a first catenary-shaped body (28) disposed on the first central rod segment (2), and the first central rod segment (2) is also provided with a first catenary stepped structure (29).

3. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The shear wave control structure (16) includes a long stepped ascending structure (30) disposed on the second central rod segment (3), and the diameter of the third central rod segment (4) is larger than the diameter of the second central rod segment (3).

4. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The multi-parabolic structure (17) includes a front and rear double Gaussian parabolic body (31) and a first Gaussian structure body (32) disposed on the fourth central rod segment (5). The common parabolic structure (18) includes a second Gaussian structure body (33) disposed on the fifth central rod segment (6). One end of the second Gaussian structure body (33) is connected to the fourth central rod segment (5), and the other end is connected to the fifth central rod segment (6).

5. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The high-frequency amplification structure (19) includes a first stepped descending structure (34) disposed on the sixth central rod segment (7). The sixth central rod segment (7) is also provided with a first conical body (35) and a second conical body (36). The first conical body (35) and the second conical body (36) are connected to form a dumbbell-shaped structure.

6. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The shear wave suppression structure (20) includes a second-step descending structure (37) and a first-step ascending structure (38) disposed on the seventh central pole segment (8).

7. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The initial anti-overflow structure (21) includes a third Gaussian structure (39) disposed on the eighth central pole segment (9), the middle anti-overflow structure (22) includes a fourth Gaussian structure (40) disposed on the ninth central pole segment (10), and the tail anti-overflow structure (23) includes a fifth Gaussian structure (41) disposed on the tenth central pole segment (11).

8. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The aforementioned noise prevention structure (24) includes a mid-front stepped ascending structure (42) installed on the eleventh central pole segment (12).

9. The central rod of an ultra-long composite ultrasonic surgical scalpel according to claim 1, characterized in that, The crest control structure (25) includes an end-step ascending structure (43) installed on the twelfth central pole segment (13).

10. The central rod of an ultra-long composite ultrasonic scalpel according to claim 1, characterized in that, The high amplitude output structure (26) includes a second catenary (44) and a second catenary step structure (45) disposed on the thirteenth central rod segment (14).

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