Long-distance type composite structure ultrasonic surgical knife center rod
By optimizing the structural design of the central rod and adopting a combination of various functional structures, the problem of uneven energy and stress distribution in the central rod of the long-distance composite structure ultrasonic scalpel in single-port and robotic surgery was solved, thereby improving the instantaneous dehydration and coagulation effect of tissue and meeting the needs of long single-port and robotic surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU KANGJI MEDICAL INSTR
- Filing Date
- 2023-03-13
- Publication Date
- 2026-06-05
AI Technical Summary
The existing long-distance composite structure ultrasonic scalpel's central rod experiences uneven distribution of high-frequency vibration, high amplitude energy, and stress during use, making it difficult to reduce the central beam energy. This results in poor instantaneous tissue dehydration and coagulation effects, failing to meet the needs of single-port and robotic surgery.
A long-distance composite structure ultrasonic scalpel center rod is adopted. By setting up a stress relief structure, a longitudinal wave transmission structure, a stress concentration structure, an anti-spillage amplification structure, an energy transition structure, an amplitude-mass balance structure, a mid-section anti-spillage structure, a mid-tail section anti-spillage structure, a transverse wave control structure, and a high-amplitude output structure, the transformation ratio design of each half wavelength of the center rod is optimized to achieve uniform distribution of energy and stress.
It achieves the effect of reducing the central beam energy at the front end of the central rod working face by 8-12 dB compared to the rear beam energy, significantly reducing the central static impedance, achieving instantaneous tissue dehydration and coagulation, and filling the specification requirements of long single-hole ultrasonic scalpel and robotic surgery.
Smart Images
Figure CN116269659B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of ultrasonic scalpel technology and relates to a long-distance composite structure ultrasonic scalpel center rod. Background Technology
[0002] Printed ultrasonic scalpels are surgical instruments that utilize the cavitation effect caused by ultrasonic energy to dehydrate, coagulate, and ultimately lyse tissue. To further fill the gaps in the market for ultrasonic scalpel specifications, existing ultrasonic scalpels used for single-port and robotic surgeries no longer meet the demands of longer single-port and robotic procedures. Therefore, a long-span composite structure ultrasonic scalpel center rod is needed for these procedures. However, existing long-span composite structure ultrasonic scalpel center rods still exhibit uneven high-frequency vibration, high-amplitude energy, and stress distribution during use. This makes it difficult to achieve the required dB reduction in energy between the front and rear beams of the working face, significantly reducing the central static impedance. The instantaneous dehydration and coagulation effects are also limited, making it challenging to meet the domestic and international market demands for long single-port and robotic ultrasonic scalpel specifications.
[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses an ultrasonic scalpel [application number: 202211312365.9], which includes a scalpel head and a scalpel shaft. The connection between the scalpel head and the rear amplitude control area is located between the longitudinal vibration antinode and the longitudinal vibration node. The two ends of the mid-end stress adjustment area are provided with a first transition fillet at the connection between the front amplitude amplification area and the rear amplitude control area. The front amplitude amplification area includes multiple front gain steps, and a second transition fillet is provided between two adjacent front gain steps. The mid-end stress adjustment area includes an amplitude holding shaft segment, and the amplitude holding shaft segment is spaced by multiple waveform and frequency adjustment structures. The waveform and frequency adjustment structures are set at the position of the longitudinal vibration node of the scalpel shaft in the mid-end stress adjustment area. The rear amplitude control area includes multiple rear gain steps, and a third transition fillet is provided between two adjacent rear gain steps. However, this solution is still not suitable for single-port surgery and robotic surgery. Its central rod stroke is relatively short, and during use, its high-frequency vibration, high amplitude energy, and stress distribution are still uneven. It is still difficult to achieve the effect of reducing the energy of the front central beam of the long-distance composite structure central rod by the required range in dB compared to the rear beam. It is still difficult to significantly reduce the central static impedance. The instantaneous dehydration and coagulation effect of tissue is average. It has the shortcomings of not being able to meet the specification requirements of long single-port ultrasonic scalpel and robotic surgery in the domestic and international markets. Summary of the Invention
[0004] The purpose of this invention is to address the above-mentioned problems by providing a long-distance composite structure ultrasonic surgical scalpel center rod.
[0005] To achieve the above objectives, the present invention adopts the following technical solutions:
[0006] A long-span composite structure ultrasonic surgical scalpel central rod includes a surgical scalpel body. The surgical scalpel body has a first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth central rod segments. The twelfth central rod segment is connected to the surgical scalpel body. The first central rod segment has a stress-relief structure, the second central rod segment has a longitudinal wave transmission structure, and the third central rod segment... The fourth central pole segment is equipped with a stress concentration structure, the fifth central pole segment is equipped with an anti-overflow amplification structure, the sixth central pole segment is equipped with an amplitude-mass balance structure, the seventh central pole segment is equipped with a mid-section anti-overflow structure, the eighth central pole segment is equipped with a mid-tail section anti-overflow structure, the ninth central pole segment is equipped with a tail section anti-overflow structure, the tenth central pole segment is equipped with a transverse wave control structure, the eleventh central pole segment is equipped with an end transition zone, and the twelfth central pole segment is equipped with a high-amplitude output structure.
[0007] In the aforementioned long-distance composite structure ultrasonic surgical knife central rod, the stress relief structure includes a tail-end conical body and a first catenary body disposed on the first central rod segment, and the first central rod segment is further provided with a first catenary step structure.
[0008] In the aforementioned long-distance composite structure ultrasonic surgical knife central rod, the longitudinal wave transmission structure includes a long stepped ascending structure disposed on the second central rod segment.
[0009] In the aforementioned long-distance composite structure ultrasonic surgical knife central rod, the stress concentration structure includes a first Gaussian parabolic structure disposed on the third central rod segment.
[0010] In the aforementioned long-distance composite structure ultrasonic surgical knife central rod, the anti-overflow amplification structure includes a front and rear double parabolic body and a second Gaussian parabolic structure disposed on the fourth central rod segment.
[0011] In the aforementioned long-distance composite structure ultrasonic surgical knife central rod, the energy transition structure includes a first step descending structure disposed on the fifth central rod segment.
[0012] In the aforementioned long-distance composite structure ultrasonic scalpel central rod, the amplitude mass balance structure includes a first conical body and a second conical body disposed on the sixth central rod segment. The first conical body and the second conical body are connected to form a dumbbell-shaped structure. The sixth central rod segment is also provided with a second step descending structure and a first step ascending structure.
[0013] In the aforementioned long-distance composite structure ultrasonic scalpel central rod, the middle section anti-overflow structure includes a third Gaussian parabolic structure disposed on the seventh central rod segment, the middle tail section anti-overflow structure includes a fourth Gaussian parabolic structure disposed on the eighth central rod segment, and the tail section anti-overflow structure includes a fifth Gaussian parabolic structure disposed on the ninth central rod segment.
[0014] In the aforementioned long-distance composite structure ultrasonic surgical knife central rod, the transverse wave control structure includes a mid-step descending structure disposed on the tenth central rod segment.
[0015] In the aforementioned long-distance composite structure ultrasonic scalpel central rod, the high-amplitude output structure includes a second catenary-like body disposed on the twelfth central rod segment, and the twelfth central rod segment is further provided with a second catenary stepped structure.
[0016] Compared with existing technologies, the advantages of this invention are:
[0017] 1. This invention is applied to single-port supplementary surgery, employing a long-span composite structure center rod. Due to variations in center rod length, different performance indicators require different reductions. By incorporating stress relief structures, longitudinal wave transmission structures, stress concentration structures, anti-overflow amplification structures, energy transition structures, amplitude-mass balance structures, mid-section anti-overflow structures, mid-tail section anti-overflow structures, tail section anti-overflow structures, transverse wave control structures, end transition zones, and high-amplitude output structures, the front-end center beam of the long-span composite structure center rod achieves an 8-12 dB energy reduction compared to the rear-end beam. This significantly reduces the central static impedance, achieving instantaneous tissue dehydration and coagulation, filling a gap in the domestic and international markets for long-port ultrasonic scalpels and robotic surgery specifications.
[0018] 2. This invention improves the design by optimizing the original structural design and adjusting the transformation ratio of each half wavelength 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. Stress relief structure; 14. Longitudinal wave transmission structure; 15. Stress concentration structure; 16. Anti-spillover amplification structure; 17. Energy transition structure; 18. Amplitude-mass balance structure; 19. Mid-section anti-spillover structure; 20. Mid-tail section anti-spillover structure; 21. Tail section anti-spillover structure; 22. Transverse wave control structure; 23. High amplitude. Output structure 24, tail cone-shaped body 25, first catenary-shaped body 26, first catenary staircase structure 27, long staircase ascending structure 28, first Gaussian parabola structure 29, front and rear double parabolic bodies 30, second Gaussian parabola structure 31, first staircase descending structure 32, first cone-shaped body 33, second cone-shaped body 34, second staircase descending structure 35, first staircase ascending structure 36, third Gaussian parabola structure 37, fourth Gaussian parabola structure 38, fifth Gaussian parabola structure 39, middle staircase descending structure 40, second catenary-shaped body 41, second catenary staircase structure 42. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] like Figure 1-3As shown, a long-span 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, and a twelfth central rod segment 13. The twelfth central rod segment 13 is connected to the scalpel body 1. The first central rod segment 2 has a stress-relief structure 14, the second central rod segment 3 has a longitudinal wave transmission structure 15, and the third central rod segment... The fourth central segment 5 is equipped with a stress concentration structure 16, the fifth central segment 6 is equipped with an anti-overflow amplification structure 17, the sixth central segment 7 is equipped with an amplitude-mass balance structure 19, the seventh central segment 8 is equipped with a mid-section anti-overflow structure 20, the eighth central segment 9 is equipped with a mid-tail section anti-overflow structure 21, the ninth central segment 10 is equipped with a tail section anti-overflow structure 22, the tenth central segment 11 is equipped with a transverse wave control structure 23, the eleventh central segment 12 is equipped with an end transition zone, and the twelfth central segment 13 is equipped with a high-amplitude output structure 24.
[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 has a large diameter change for the first half wavelength. In order to eliminate stress problems, a stress relief structure 14 is set up, which not only fully transfers energy without leakage, but also amplifies 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, effectively control the amplification of the transverse wave ratio, and take into account the imbalance of internal stress, the longitudinal wave transmission structure 15 is set up to improve the amplification ratio before and after, and effectively prevent the generation of transverse waves, ensuring effective longitudinal wave transmission and ensuring the effective increase of amplitude.
[0029] To ensure effective amplitude growth, the third central rod segment 4 also needs to gradually increase the amplitude to avoid generating overflow transverse waves. By setting up the stress concentration structure 16, stress concentration is controlled to prevent abnormal noise or tearing of the internal crystal structure of the metal during operation.
[0030] To ensure effective amplitude growth, the fourth central segment 5 must prevent energy leakage and generate transverse waves while ensuring effective amplitude increase. This is achieved by setting an anti-leakage amplification 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 does not undergo structural changes in the first half-wavelength section. The amplified energy of the previous section is smoothly transitioned without generating transverse waves. At the end of the half-wavelength section, an energy transition structure 18 is set to amplify the energy amplitude again, ensuring the smooth transition of the previous structure. At the same time, the amplitude of the entire segment is amplified at the end, so that the longitudinal wave is effectively transmitted.
[0032] To ensure the integrity of the overall amplitude transmission, the sixth central rod segment 7 is the middle section of the central rod. This segment needs to support the energy stability of the entire structure. By setting the amplitude-mass balance structure 19, the stability of the overall structure is achieved, and the transverse waves generated by the two boundaries are offset, ensuring the amplitude and mass balance at the end boundary of this segment, and ensuring the effective increase of amplitude.
[0033] To ensure the integrity of the overall amplitude transmission, the seventh central rod segment 8 is a middle segment. In this half-wavelength node zero position section, a middle segment anti-overflow structure 20 is set to prevent energy leakage caused by the generation of transverse waves.
[0034] To ensure the integrity of the overall amplitude transmission, the eighth central rod segment 9 is located at the tail of the middle segment. In this half-wavelength wave node zero position section, the middle tail segment anti-overflow structure 21 is set to prevent the 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 has a tail section anti-overflow structure 22 set in front of the zero position of this half-wavelength node to prevent energy leakage caused by the generation of transverse waves.
[0036] To ensure effective amplitude growth, the tenth central segment 11 mainly amplifies the amplitude while also effectively slowing down the amplification of the transverse wave to avoid abnormal noise. The half-wavelength of this section is ensured by setting a transverse wave control structure 23 to ensure effective amplitude increase.
[0037] To ensure effective amplitude growth, the eleventh central segment 12 is left untreated; this segment is the end transition zone.
[0038] To ensure stable energy output, the twelfth central rod segment 13 has a high-amplitude output structure 24 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.
[0039] This structure is used in single-port supplementary surgery and adopts a long-span composite structure center rod. Due to the difference in the length of the center rod, the indicators that need to be reduced are different. It can achieve the effect of reducing the energy of the front center beam of the long-span composite structure center rod by 8-12dB compared with the rear beam, thereby significantly reducing the central static impedance, achieving instantaneous tissue dehydration and coagulation, and filling the gap in the specifications of long single-port ultrasonic scalpel and robotic surgery in the domestic and international markets.
[0040] Combination Figure 1 , Figure 2 As shown, the stress relief structure 14 includes a tail cone-shaped body 25 and a first catenary-shaped body 26 disposed on the first central rod segment 2, and the first central rod segment 2 is also provided with a first catenary stepped structure 27.
[0041] 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.
[0042] When X=1, in order to ensure that the energy is fully transferred from the transducer to the central rod, the first central rod segment 2 has a large diameter change for the first half wavelength, which is the first catenary step structure 27. In order to eliminate stress problems, two structural changes are selected: the tail cone-shaped body 25 and the first catenary-shaped body 26. This not only fully transfers energy without leakage, but also amplifies the energy amplitude, which is also the first stage of amplitude amplification.
[0043] Combination Figure 1 , Figure 2 As shown, the longitudinal wave transmission structure 15 includes a long stepped ascending structure 28 disposed on the second central rod segment 3.
[0044] 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.
[0045] When X=2, the second central rod segment 3 ensures that the energy is fully transferred from the transducer to the central rod, effectively controls the amplification of the transverse wave ratio, and considers the imbalance of internal stress. This half-wavelength section is designed with a long stepped upward structure 28. The first 1 / 4 of the half-wavelength is designed with a stepped structure to improve the amplification ratio before and after, and effectively prevents the generation of transverse waves, ensuring effective transmission of longitudinal waves and ensuring the effective increase of amplitude.
[0046] The stress concentration structure 16 includes a first Gaussian parabolic structure 29 disposed on the third central rod segment 4.
[0047] 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.
[0048] When X=3, in order to ensure the effective growth of amplitude, the third central rod segment 4 also needs to slowly increase the amplitude to avoid the generation of overflow transverse waves. This segment achieves stress concentration control by setting the first Gaussian parabolic structure 29 at the node, thus avoiding abnormal noise or tearing of the internal crystal structure of the metal during operation of the central rod.
[0049] Combination Figure 2 As shown, the anti-overflow amplification structure 17 includes a front and rear double parabolic body 30 and a second Gaussian parabolic structure 31 disposed on the fourth central rod segment 5.
[0050] 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.
[0051] When X=4, in order to ensure the effective increase of amplitude, the fourth central segment 5 must prevent energy leakage and generate transverse waves, and also ensure the effective increase of amplitude. This segment adopts a double parabolic body 30 at the front and rear, and a second Gaussian parabolic structure 31 at the central end to offset the stress change caused by amplitude amplification.
[0052] The energy transition structure 18 includes a first step descending structure 32 disposed on the fifth central pole segment 6.
[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=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 segment 6 does not undergo structural changes in the first half-wavelength section. The amplified energy of the previous section is smoothly transitioned without generating transverse waves. At the end of the first half-wavelength section, the first step descending structure 32 is used to amplify the energy amplitude again, ensuring the smooth transition of the previous structure. At the same time, the amplitude of the entire segment is amplified at the end, so that the longitudinal wave is effectively transmitted.
[0055] The amplitude mass balance structure 19 includes a first conical body 33 and a second conical body 34 disposed on the sixth central rod segment 7. The first conical body 33 and the second conical body 34 are connected to form a dumbbell-shaped structure. The sixth central rod segment 7 is also provided with a second step descending structure 35 and a first step ascending structure 36.
[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=6, the sixth central rod segment 7, in order to ensure the integrity of the overall amplitude transmission, is the middle section of the central rod. This segment needs to support the energy stability of the entire structure. In the middle section, a dumbbell-shaped structure is formed by connecting the first conical body 33 and the second conical body 34 to achieve the stability of the overall structure and to cancel the transverse wave generated by the two boundaries. At the end of this segment, a second step descending structure 35 and a first step ascending structure 36 are set. The composite structure design of 1 / 19 wavelength and 1 / 36 size steps ensures the amplitude and mass balance at the end boundary of this segment and ensures the effective increase of amplitude.
[0058] Combination Figure 2-3 As shown, the mid-section anti-overflow structure 20 includes a third Gaussian parabolic structure 37 disposed on the seventh central pole segment 8, the mid-tail anti-overflow structure 21 includes a fourth Gaussian parabolic structure 38 disposed on the eighth central pole segment 9, and the tail anti-overflow structure 22 includes a fifth Gaussian parabolic structure 39 disposed on the ninth central pole segment 10.
[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=7, the seventh central rod segment 8 is an intermediate segment to ensure the integrity of the overall amplitude transmission. In this half-wavelength node zero position section, the third Gaussian parabolic structure 37 is used to prevent energy leakage caused by the generation of transverse waves.
[0061] When X=8, the eighth central rod segment 9 is to ensure the integrity of the overall amplitude transmission. This segment belongs to the tail of the middle segment. In the section before the zero position of the half-wavelength node, the fourth Gaussian parabolic structure 38 is set to prevent the energy leakage caused by the generation of transverse waves.
[0062] When X=9, in order to ensure the integrity of the overall amplitude transmission, the ninth central segment 10 is equipped with a fifth Gaussian parabolic structure 39 in front of the zero position of this half-wavelength node to prevent energy leakage caused by the generation of transverse waves.
[0063] Combination Figure 1-3 As shown, the transverse wave control structure 23 includes a mid-step descending structure 40 disposed on the tenth central pole segment 11.
[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=10, the tenth central rod segment 11 is designed to ensure effective amplitude growth. This segment mainly amplifies the amplitude while also effectively slowing down the amplification of the transverse wave to avoid abnormal noise. The half-wavelength of this section is designed with a middle stepped descending structure 40. The step ratio of the front half-wavelength segment to the rear half-wavelength segment is 2:1, which ensures the effective increase of amplitude.
[0066] When X = 11, the eleventh central segment 12 is left untreated to ensure effective amplitude growth. This segment is the end transition zone.
[0067] Combination Figure 2 As shown in Figure 3, the high-amplitude output structure 24 includes a second catenary 41 disposed on the twelfth central rod segment 13, and the twelfth central rod segment 13 is also provided with a second catenary step structure 42.
[0068] 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.
[0069] When X=12, in order to ensure stable energy output, the twelfth central rod segment 13 has a second catenary step structure 42 and a second catenary-like body 41 set 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.
[0070] The long-step ascending structure 28, the first-step descending structure 32, the second-step descending structure 35, the first-step ascending structure 36, and the medium-step descending structure 40 mentioned in this invention are described in the accompanying drawings. Figure 2As 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 27 is a stepped structure formed by the difference in the diameters of the rods at both ends of the first catenary 26, and the second catenary stepped structure 42 is a stepped structure formed by the difference in the diameters of the rods at both ends of the second catenary 41.
[0071] The working principle of this invention is:
[0072] 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.
[0073] When X=1, to ensure that energy is fully transferred from the transducer to the central rod, the first central rod segment 2 undergoes a significant diameter change for the first half-wavelength, resulting in the first catenary stepped structure 27. To eliminate stress issues, two structural variations are used: a conical tail section 25 and a first catenary section 26. This design not only ensures full energy transfer without leakage but also amplifies the energy amplitude, representing the first stage of amplitude amplification.
[0074] When X=2, the second central rod segment 3, to ensure sufficient energy transfer from the transducer to the central rod and effectively control the amplification of the transverse wave ratio, while also considering the imbalance of internal stress, incorporates a long stepped upward structure 28 for the half-wavelength. The first quarter of the half-wavelength uses a stepped structure design to improve the amplification ratio and effectively prevent the generation of transverse waves, ensuring effective longitudinal wave transmission and a significant increase in amplitude.
[0075] When X=3, the third central rod segment 4 needs to ensure effective amplitude growth. This segment also needs to gradually increase the amplitude to avoid generating overflow transverse waves. At the node, a first Gaussian parabolic structure 29 is set to control stress concentration and prevent abnormal noise or tearing of the internal crystal structure of the metal during operation.
[0076] When X=4, 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 segment employs a double parabolic body 30 at the front and rear, and a second Gaussian parabolic structure 31 at the central end to offset the stress changes caused by amplitude amplification.
[0077] When X=5, the fifth central segment 6, to ensure the integrity of the overall amplitude transmission and to effectively inherit the structural changes of the preceding segment, undergoes no structural changes in the first half-wavelength section. The amplified energy transitions smoothly without generating transverse waves. At the end of this half-wavelength section, a first-step descending structure 32 is used to further amplify the energy amplitude, ensuring a smooth transition of the preceding structure. Simultaneously, the entire amplitude is amplified at the end, enabling effective transmission of longitudinal waves.
[0078] When X=6, the sixth central rod segment 7, to ensure the integrity of the overall amplitude transmission, is the middle section of the central rod. This segment needs to support the energy stability of the entire structure. In the middle section, a dumbbell-shaped structure formed by connecting the first conical body 33 and the second conical body 34 achieves overall structural stability and counteracts the transverse waves generated by the two boundaries. At the end of this segment, a second descending structure 35 and a first ascending structure 36 are set, employing a composite structure design with 1 / 19 wavelength and 1 / 36 size steps. This ensures the amplitude and mass balance at the end boundary of this segment, guaranteeing an effective increase in amplitude.
[0079] When X=7, the seventh central rod segment 8 is an intermediate segment to ensure the integrity of the overall amplitude transmission. In this half-wavelength node zero position section, the third Gaussian parabolic structure 37 is used to prevent energy leakage caused by the generation of transverse waves.
[0080] When X=8, the eighth central rod segment 9 is to ensure the integrity of the overall amplitude transmission. This segment belongs to the tail of the middle segment. In the section before the zero position of the half-wavelength node, the fourth Gaussian parabolic structure 38 is set to prevent the energy leakage caused by the generation of transverse waves.
[0081] When X=9, to ensure the integrity of the overall amplitude transmission, the ninth central segment 10 has a fifth Gaussian parabolic structure 39 installed before the zero position of this half-wavelength node to prevent energy leakage caused by the generation of transverse waves.
[0082] When X=10, the tenth central segment 11, to ensure effective amplitude growth, primarily amplifies the amplitude while effectively mitigating transverse wave amplification to avoid abnormal noise. This half-wavelength section utilizes a mid-step descending structure 40, with a step ratio of 2:1 between the front and rear sections of the half-wavelength, ensuring an effective increase in amplitude. When X=11, the eleventh central segment 12, to ensure effective amplitude growth, is left untreated; this segment serves as the end transition zone.
[0083] When X=12, to ensure stable energy output, the twelfth central rod segment 13 incorporates a second catenary step structure 42 and a second catenary-like body 41 at its end. 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 effects on soft tissue.
[0084] This structure, applied to single-port supplementary surgery, employs a long-span composite central rod. Due to variations in central rod length, different performance indicators require different reductions. This design achieves an 8-12 dB reduction in energy of the front-end central beam compared to the rear-end beam, significantly lowering the central static impedance and enabling instantaneous tissue dehydration and coagulation. This fills a gap in the domestic and international markets for long-port ultrasonic scalpel and robotic surgery specifications.
[0085] This achieves an approximately uniform distribution of energy and stress in the finished product's center rod, thereby improving the uniformity of longitudinal and transverse wave transmission and achieving stable cutting and hemostasis.
[0086] The design allows for flexible adjustment of the center rod based on two windows, addressing differences between batches of the same material, thus enhancing production efficiency.
[0087] This system achieves an integrated algorithm design for the amplitude, frequency, and stress of the central rod, significantly reducing external interference issues in practical applications, greatly decreasing the defect rate, and improving the yield of finished products.
[0088] By constructing a model with a specific emission response, the longitudinal wave energy of the central rod is made significantly greater than that of the transverse wave. This not only greatly reduces the impact of the transverse wave on the cutting action of the central rod but also effectively improves the hemostasis effect of the central rod and enhances the uniformity of horizontal energy. Furthermore, the integrated design concept of multiple sub-models effectively controls the effective working surface of the central rod, thereby improving the stability of the ultrasonic scalpel.
[0089] This invention improves the design by optimizing the original structure and adjusting the transformation ratio of each half-wavelength 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 paper frequently uses terms such as scalpel body 1, first central segment 2, second central segment 3, third central segment 4, fourth central segment 5, fifth central segment 6, sixth central segment 7, seventh central segment 8, eighth central segment 9, ninth central segment 10, eleventh central segment 12, twelfth central segment 13, stress relief structure 14, longitudinal wave transmission structure 15, stress concentration structure 16, anti-spillover amplification structure 17, energy transition structure 18, amplitude-mass balance structure 19, mid-section anti-spillover structure 20, mid-tail section anti-spillover structure 21, tail section anti-spillover structure 22, transverse wave control structure 23, high-amplitude output structure 24, etc. The terms used include 25 (tail-end conical body), 26 (first catenary body), 27 (first catenary stepped structure), 28 (long stepped ascending structure), 29 (first Gaussian parabolic structure), 30 (front and rear double parabolic body), 31 (second Gaussian parabolic structure), 32 (first stepped descending structure), 33 (first conical body), 34 (second conical body), 35 (second stepped descending structure), 36 (first stepped ascending structure), 37 (third Gaussian parabolic structure), 38 (fourth Gaussian parabolic structure), 39 (fifth Gaussian parabolic structure), 40 (middle stepped descending structure), 41 (second catenary body), and 42 (second catenary stepped structure), but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.
Claims
1. A long-span composite structure ultrasonic scalpel center rod, 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), and a twelfth central rod segment (13). The twelfth central rod segment (13) is connected to the scalpel body (1). The first central rod segment (2) is provided with a stress relief structure (14). The second central rod segment (3) is provided with a longitudinal wave transmission structure (15). The third central rod segment (4) is provided with a stress concentration structure (16). The fourth central pole segment (5) is provided with an anti-overflow amplification structure (17), the fifth central pole segment (6) is provided with an energy transition structure (18), the sixth central pole segment (7) is provided with an amplitude mass balance structure (19), the seventh central pole segment (8) is provided with a mid-section anti-overflow structure (20), the eighth central pole segment (9) is provided with a mid-tail section anti-overflow structure (21), the ninth central pole segment (10) is provided with a tail section anti-overflow structure (22), the tenth central pole segment (11) is provided with a transverse wave control structure (23), the eleventh central pole segment (12) is provided with an end transition zone, and the twelfth central pole segment (13) is provided with a high-amplitude output structure (24).
2. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The stress relief structure (14) includes a tail cone-shaped body (25) and a first catenary-shaped body (26) disposed on the first central rod segment (2), and the first central rod segment (2) is also provided with a first catenary stepped structure (27).
3. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The longitudinal wave transmission structure (15) includes a long stepped ascending structure (28) disposed on the second central pole segment (3).
4. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The stress concentration structure (16) includes a first Gaussian parabolic structure (29) disposed on the third central rod segment (4).
5. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The aforementioned anti-overflow amplification structure (17) includes a front and rear double parabolic body (30) and a second Gaussian parabolic structure (31) disposed on the fourth central rod segment (5).
6. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The energy transition structure (18) includes a first step descending structure (32) disposed on the fifth central pole segment (6).
7. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The amplitude mass balance structure (19) includes a first cone (33) and a second cone (34) set on the sixth central rod segment (7). The first cone (33) and the second cone (34) are connected to form a dumbbell-shaped structure. The sixth central rod segment (7) is also provided with a second step descending structure (35) and a first step ascending structure (36).
8. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The mid-section anti-overflow structure (20) includes a third Gaussian parabola structure (37) installed on the seventh central pole segment (8), the mid-tail anti-overflow structure (21) includes a fourth Gaussian parabola structure (38) installed on the eighth central pole segment (9), and the tail anti-overflow structure (22) includes a fifth Gaussian parabola structure (39) installed on the ninth central pole segment (10).
9. The long-span composite structure ultrasonic surgical scalpel center rod according to claim 1, characterized in that, The shear wave control structure (23) includes a mid-step descending structure (40) installed on the tenth central pole segment (11).
10. The central rod of a long-span composite ultrasonic scalpel according to claim 1, characterized in that, The high-amplitude output structure (24) includes a second catenary (41) disposed on the twelfth central rod segment (13), and the twelfth central rod segment (13) is also provided with a second catenary step structure (42).