An ultrasonic scalpel

Abstract

The application relates to an ultrasonic scalpel, which comprises a shell and a needle tube structure, the shell comprises a collection bin for collecting sample tissues; the needle tube structure is movably connected to the inside of the shell and penetrates one end of the shell, an inner cavity is formed in the inside of the needle tube structure, the needle tube structure comprises a sampling groove and a cutout which is communicated with the sampling groove through the inner cavity, the sampling groove is located outside the shell, the cutout is located inside the shell, and the needle tube structure is used for conveying sample tissues to the collection bin through the sampling groove, the inner cavity and the cutout. In the application, the needle tube structure arranged on the shell is used for realizing ultrasonic cutting of tissues and transportation of sample tissues. During the operation, the sample tissues fall into the sampling groove, then enter the collection bin through the inner cavity and the cutout, the sampling groove, the inner cavity and the cutout can be connected to convey the sample tissues, the collection bin collects the sample tissues, so that the sample tissues are prevented from being exposed to air to cause secondary pollution, and the operator can clean the sample tissues in the collection bin after the operation is completed, so that the operation is facilitated.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to an ultrasonic surgical scalpel. Background Technology

[0002] In open and laparoscopic surgeries, the use of ultrasonic scalpels for the removal of diseased tissue is widespread. The principle of an ultrasonic scalpel is to use an ultrasonic frequency generator to make a metal blade mechanically vibrate at an ultrasonic frequency, causing water molecules in the tissue to vaporize, protein hydrogen bonds to break, cells to disintegrate, tissue to be cut or coagulated, and blood vessels to close.

[0003] Current ultrasonic scalpels utilize the principle of ultrasonic scalpels to quickly and accurately cut tissues, but they also have the following obvious shortcomings: (1) The sampling process is not very convenient. After each ultrasonic tissue cutting, the ultrasonic scalpel rod needs to be retracted to the sampling slot, and the sampled tissue needs to be manually grasped with tweezers before the next ultrasonic cutting and sampling can be performed. This increases the workload of medical staff and also makes the minimally invasive surgery time longer; (2) The sampling process is not very safe. The sampling slot is an open design, and the sampled tissue needs to be manually grasped with tweezers, which may cause secondary contamination; 3) The sampling method is not very effective. The sampling slot is open, and the air supply channel between the ultrasonic scalpel rod and the puncture needle tube is always open. This will cause the negative pressure channel and the air supply channel to form a short circuit at the sampling slot, resulting in the loss of some negative pressure. This will result in insufficient negative pressure suction, which may lead to the sampled tissue not being completely sucked into the sampling slot, resulting in empty cutting or incomplete cutting. (4) The sampling process is not conducive to personnel operation. The negative pressure channel is at the front of the scalpel, and the connected negative pressure tube is at the front end of the scalpel. During the operation, it is necessary to pay close attention to avoid bending the negative pressure tube, which may cause the negative pressure to fail. At the same time, the presence of the negative pressure tube may further affect the operator's habitual operating techniques. Summary of the Invention

[0004] This application provides an ultrasonic surgical scalpel that can solve the problems in related technologies, such as cumbersome sampling process, inability to automatically and continuously sample, potential secondary contamination during sampling, and sampling process that is not conducive to operation.

[0005] An ultrasonic scalpel includes a housing and a needle tube structure. The housing includes a collection chamber for collecting sampled tissue. The needle tube structure is movably connected to the interior of the housing, with one end extending through one end of the housing. The needle tube structure has an internal cavity, including a sampling groove and an incision communicating with the sampling groove through the internal cavity. The sampling groove is located outside the housing, and the incision is located inside the housing. The needle tube structure is used to deliver sampled tissue to the collection chamber through the sampling groove, the internal cavity, and the incision.

[0006] In some embodiments, the needle tube structure includes: a puncture needle tube and an ultrasonic scalpel rod, wherein the puncture needle tube has a sampling groove; the ultrasonic scalpel rod is slidably connected to the inside of the puncture needle tube, the inner cavity is opened inside the ultrasonic scalpel rod, and the incision is opened on the ultrasonic scalpel rod; wherein, the needle tube structure has a puncture state and a cutting and sampling state, when the needle tube structure is in the puncture state, the ultrasonic scalpel rod is located in a first position and the sampling groove is sealed, when the needle tube structure is in the cutting and sampling state, the ultrasonic scalpel rod is located in a second position, the sampling groove is opened, and communicates with the inside of the collection chamber through the inner cavity and the incision.

[0007] In some embodiments, the needle tube structure further includes: an air supply tube seat, an air supply tube connector, and a negative pressure tube connector. The air supply tube seat is disposed on the puncture needle tube. One end of the air supply tube connector is connected to the inside of the puncture needle tube through the air supply tube seat, and the other end is used to connect to the main unit. The negative pressure tube connector is disposed inside the housing and is used to connect to the main unit.

[0008] In some embodiments, the ultrasonic scalpel further includes a drive structure installed inside the housing, the drive structure being connected to the needle tube structure and used to drive the needle tube structure to move linearly.

[0009] In some embodiments, the driving structure includes a driving component, a transmission component, and a transducer component, wherein the transmission component is connected to the driving component; the transducer component is disposed on the transmission component and connected to the needle structure; and the driving component drives the needle structure to move linearly through the transmission component and the transducer component.

[0010] In some embodiments, the transmission assembly includes: a motor gear, a transmission gear, and a transmission sleeve; the motor gear is connected to a drive assembly; the transmission gear is driven by the motor gear; the transmission sleeve passes through the transmission gear and is driven by the transmission gear; and a transducer assembly is disposed inside the transmission sleeve.

[0011] In some embodiments, the drive structure further includes a connection component disposed on the transmission component, wherein the transducer component is used to connect to a power supply device via the connection component.

[0012] In some embodiments, the connecting assembly includes: an insulating ring, a copper ring, a contact ring, and a spring pin; the insulating ring is disposed on the transmission assembly; the copper ring is sleeved on the surface of the insulating ring; the contact ring is sleeved on the surface of the copper ring; and the spring pin is disposed on the contact ring.

[0013] In some embodiments, the ultrasonic scalpel further includes a limiting structure, which includes a slider and a limiting rod. The slider is connected to the needle tube structure via a positioning pin and is slidably connected inside the housing. The limiting rod is disposed on the housing and has a first state and a second state. When the limiting rod is in the first state, it is used to restrict the sliding of the slider. When the limiting rod is in the second state, the limiting rod is away from the slider.

[0014] In some embodiments, the housing includes a tool housing and a handle housing, the tool housing including an upper tool housing and a lower tool housing connected to the upper tool housing, and the collection chamber disposed on the lower tool housing; the tool housing and the handle housing are connected by a snap-fit, and the handle housing includes an upper handle housing and a lower handle housing connected to the upper handle housing.

[0015] The beneficial effects of the technical solutions provided in this application include at least the following:

[0016] This application provides an ultrasonic scalpel with a needle tube structure on the shell for ultrasonic cutting and transporting of sampled tissue. During the operation, the sampled tissue falls into the sampling groove, then passes through the inner cavity and incision into the collection chamber. The sampling groove, inner cavity, and incision can be connected to transport the sampled tissue. The collection chamber collects the sampled tissue, preventing it from being exposed to the air and causing secondary pollution. After the operation, the operator cleans the sampled tissue in the collection chamber for easy operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the ultrasonic scalpel bar structure provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the ultrasonic scalpel bar structure provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the upper and lower shell structures of the cutting tool provided in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper and lower cutter shells provided in the embodiments of this application;

[0022] Figure 5 This is a schematic diagram of the side structure of the upper and lower cutter shells provided in the embodiments of this application;

[0023] Figure 6 This is a schematic diagram of the needle structure cutting state provided in the embodiments of this application;

[0024] Figure 7 This is a schematic diagram of the tissue delivery state of the needle structure provided in the embodiments of this application;

[0025] Figure 8 This is a schematic diagram of the upper and lower shell structures of the tool holder provided in an embodiment of this application;

[0026] Figure 9 This is a schematic diagram of the cross-sectional structure of the upper and lower shells of the tool holder provided in an embodiment of this application.

[0027] Figure 10 This is a schematic diagram of the side structure of the transducer body provided in an embodiment of this application;

[0028] Figure 11 This is a schematic diagram of the driving structure provided in an embodiment of this application;

[0029] Figure 12 This is a side view of the driving structure provided in an embodiment of this application;

[0030] Figure 13 This is a schematic diagram of the transducer body provided in an embodiment of this application;

[0031] Figure 14 This is a side view of an ultrasonic scalpel provided in an embodiment of this application;

[0032] Figure 15 This is a side view of an ultrasonic scalpel provided in an embodiment of this application;

[0033] Figure 16 This is a top view of an ultrasonic scalpel provided in an embodiment of this application;

[0034] Figure 17 This is a front view of an ultrasonic scalpel provided in an embodiment of this application;

[0035] Figure 18 A schematic diagram of the housing provided for an embodiment of this application;

[0036] Figure 19 This is a schematic diagram of the housing provided for an embodiment of this application.

[0037] In the diagram: 1. Shell; 10. Upper shell of the cutter; 11. Lower shell of the cutter; 110. Air supply tube fixing groove; 111. Negative pressure tube fixing groove; 12. Collection chamber; 120. Sealing ring; 13. Upper shell of the handle; 14. Lower shell of the handle; 15. Buckle; 16. Release button; 2. Needle tube structure; 20. Puncture needle tube; 200. Sampling groove; 201. Vent hole; 21. Ultrasonic scalpel rod; 210. Cutting edge; 211. Inner cavity; 212. Incision; 213. Threaded hole; 214. Sealing ring; 215. Pin hole; 22. Air supply tube seat; 23. Air supply tube connector; 24. Cutting baffle; 25. Needle tip; 26. Negative pressure tube connector; 3. Limiting structure; 30. Slider; 31. Positioning pin; 32. 4. Limiting rod; 40. Drive structure; 40. Drive assembly; 400. Geared motor; 41. Transmission assembly; 410. Motor gear; 411. Transmission gear; 412. Transmission sleeve; 42. Limiting assembly; 420. Motor compartment cover; 421. Motor compartment shaft cover; 422. Support body; 423. Support shaft cover; 43. Transducer assembly; 430. Fixing sleeve; 431. Fixing seat; 432. Transducer body; 4320. Connecting thread; 44. Connecting assembly; 440. Insulating ring; 441. Copper ring; 442. Contact ring; 443. Spring pin; 5. PCBA board; 6. Button; 60. Indicator light; 7. Light guide column; 8. Knob; 80. Snap ring; 9. Power interface. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0039] See Figures 1 to 19 This application provides an ultrasonic surgical scalpel that can solve the problems in related technologies, such as cumbersome sampling process, inability to automatically and continuously sample, potential secondary contamination during sampling, and sampling process that is not conducive to operation.

[0040] This application provides an ultrasonic scalpel, which includes: a housing 1 and a needle structure 2. The housing 1 includes a collection chamber 12 for collecting sampled tissue. The needle structure 2 is movably connected to the inside of the housing 1, and one end of the needle structure 2 passes through one end of the housing 1. The needle structure 2 has an inner cavity 211. The needle structure 2 includes a sampling groove 200 and an incision 212 that communicates with the sampling groove 200 through the inner cavity 211. The sampling groove 200 is located outside the housing 1, and the incision 212 is located inside the housing 1. The needle structure 2 is used to deliver sampled tissue to the collection chamber 12 through the sampling groove 200, the inner cavity 211, and the incision 212.

[0041] In this application, the needle structure 2 provided on the shell 1 is used to realize ultrasonic cutting of tissue and transport of sampled tissue. During the operation, the sampled tissue falls into the sampling groove 200, and then enters the collection chamber 12 through the inner cavity 211 and the incision 212. The sampling groove 200, the inner cavity 211 and the incision 212 can be connected to transport the sampled tissue. The collection chamber 12 collects the sampled tissue to avoid the sampled tissue being exposed to the air and causing secondary pollution. After the operation is completed, the operator cleans the sampled tissue in the collection chamber 12 for easy operation.

[0042] The housing 1 includes a tool housing and a tool holder housing. The tool housing includes an upper tool housing 10 and a lower tool housing 11 connected to the upper tool housing 10. A collection chamber 12 is disposed on the lower tool housing 11. The tool housing and the tool holder housing are connected by a snap fastener 15. The tool holder housing includes an upper tool holder housing 13 and a lower tool holder housing 14 connected to the upper tool holder housing 13.

[0043] The needle tube structure 2 is located inside the blade shell. The needle tube structure 2 includes a puncture needle tube 20 and an ultrasonic scalpel rod 21. The puncture needle tube 20 has a sampling groove 200. The ultrasonic scalpel rod 21 is slidably connected to the inside of the puncture needle tube 20.

[0044] In this embodiment, the inner cavity 211 is opened inside the ultrasonic scalpel rod 21, and the incision 212 is opened on the ultrasonic scalpel rod 21. That is, the ultrasonic scalpel rod 21 adopts a partially hollow tube structure (the front end is a hollow tube structure and the rear end is a solid structure). The front end is used to realize ultrasonic cutting and tissue transport, and the rear end is used to connect the transducer assembly 43.

[0045] In other embodiments, the ultrasonic scalpel rod 21 is a solid structure with various shapes to adapt to rapid cutting under different conditions.

[0046] The ultrasonic scalpel 21 has a chamfered cutting edge 210 at its front end for cutting tissue; the inner cavity 211 of the ultrasonic scalpel 21 is used to transport sampled tissue, and a slit 212 is left at the end of the inner cavity 211 for discharging tissue; a threaded hole 213 is provided at the end of the ultrasonic scalpel 21 for connecting to the transducer body 432. This structure allows the ultrasonic scalpel 21 to perform multiple functions, including ultrasonic cutting, transporting sampled tissue, and connecting to the transducer body 432.

[0047] During operation, the ultrasonic scalpel rod 21 undergoes high-frequency periodic oscillation. Based on the characteristics of wave action, the ultrasonic scalpel rod 21 must not come into contact with any metal to avoid breakage. Therefore, sealing the ultrasonic scalpel rod 21 requires a plastic seal. Based on the periodic vibration characteristics, and through a combination of theoretical calculations and practical verification, fixed non-vibrating nodes on the ultrasonic scalpel rod 21 were identified. Sealing rings 214 can be generated at these nodes using an overmolding process. This design perfectly solves the sealing problem of the ultrasonic scalpel rod 21, laying the foundation for the development of ultrasonic surgical instruments.

[0048] The puncture needle 20 has an internal cavity for the ultrasonic scalpel rod 21 to pass through. A discharge port is also provided on the puncture needle 20. When the puncture needle 20 is installed inside the scalpel housing, the discharge port is located at the top of the collection chamber 12. The needle structure 2 has a puncture state and a cutting and sampling state. When the needle structure 2 is in the puncture state, the ultrasonic scalpel rod 21 is in the first position, and the sampling groove 200 is sealed. When the needle structure 2 is in the cutting and sampling state, the ultrasonic scalpel rod 21 is in the second position, the sampling groove 200 is open, and it communicates with the inside of the collection chamber 12 through the inner cavity 211 and the incision 212. The sampled tissue enters the inner cavity 211 from the sampling groove 200, and then is discharged into the collection chamber 12 through the incision 212 and the discharge port.

[0049] A needle tip 25 is provided at the front end of the puncture needle tube 20, and a cutting baffle 24 is fixed on the needle tip 25.

[0050] Based on the above embodiments, in this embodiment, the needle tube structure 2 further includes: an air supply tube seat 22, an air supply tube connector 23, and a negative pressure tube connector 26. The air supply tube seat 22 is disposed on the puncture needle tube 20. One end of the air supply tube connector 23 is connected to the inside of the puncture needle tube 20 through the air supply tube seat 22, and the other end is used to connect to the main unit. The negative pressure tube connector 26 is disposed inside the housing 1 and is used to connect to the main unit.

[0051] The ultrasonic scalpel also includes a limiting structure 3, which includes a slider 30 and a limiting rod 32. The slider 30 is connected to the needle tube structure 2 via a positioning pin 31 and is slidably connected inside the housing 1. The limiting rod 32 is disposed on the housing 1 and has a first state and a second state. When the limiting rod 32 is in the first state, it is used to restrict the sliding of the slider 30 and is movably connected to the housing 1. When the limiting rod 32 is in the second state, the limiting rod 32 is away from the slider 30.

[0052] When assembling the ultrasonic scalpel, first assemble the needle tube structure 2, that is, first fix the air supply tube seat 22 at the designated position of the puncture needle tube 20, and seal both ends with glue. Then fix the air supply tube connector 23 on the air supply tube seat 22. Next, fix the cutting baffle 24 on the needle tip 25, and then weld the needle tip 25 to the puncture needle tube 20. Finally, insert the ultrasonic scalpel rod 21 with sealing ring 214 into the puncture needle tube 20. The outer wall of the ultrasonic scalpel rod 21 has a certain gap with the inner wall of the puncture needle tube 20 to ensure that the ultrasonic scalpel rod 21 does not touch the inner wall of the puncture needle tube 20 when it moves. At the same time, the sealing ring 214 on the ultrasonic scalpel rod 21 serves both a sealing function and an auxiliary support function.

[0053] After assembling the puncture needle 20 and ultrasonic scalpel rod 21 in the needle tube structure 2, fix the needle tube structure 2 and negative pressure connector 26 into the lower housing 11 of the scalpel, and simultaneously install the limiting structure 3. First, install the slider 30 onto the slide rail of the lower housing 11. A convex ring is provided on the limiting rod 32, and a concave ring is provided on the lower housing 11. Insert the limiting rod 32 into the corresponding hole in the lower housing 11, ensuring that the convex ring on the limiting rod 32 is fully engaged with the concave ring in the lower housing 11, preventing the limiting rod 32 from falling off. At this time, the limiting rod 32 is in its first state, located at the front end of the slider 30, thus preventing the slider 30 from moving. When the slider 30 needs to slide, pull the limiting rod 32 down, away from the slider 30, so that the front end of the slider 30 is no longer obstructed by the limiting rod 32. Finally, adjust the front and rear positions of the ultrasonic scalpel rod 21, align the pin hole 215 of the ultrasonic scalpel rod 21 with the center hole of the slider 30, insert and fix the rubber-coated positioning pin 31, so that the slider 30 and the ultrasonic scalpel rod 21 can move synchronously.

[0054] Finally, connect one end of the air supply pipe and the negative pressure pipe to the air supply pipe connector 23 and the negative pressure pipe connector 26 respectively, and fix the air supply pipe and the negative pressure pipe into the air supply pipe fixing groove 110 and the negative pressure pipe fixing groove 111 in the lower cutter shell 11. Then connect the upper cutter shell 10 and the lower cutter shell 11 through the buckle 15. Finally, install the sealing ring 120 at the collection chamber 12 in the lower cutter shell 11, and connect the collection chamber 12 and the lower cutter shell 11 through the buckle 15.

[0055] The air supply tube and negative pressure tube are connected to the main unit at one end. The main unit provides vacuum negative pressure and controls the opening and closing of air supply and negative pressure. The ultrasonic scalpel's working process is divided into puncture, cutting, and sampling. The puncture process begins with the ultrasonic scalpel rod 21... Figure 7 Position moved to Figure 6 The ultrasonic scalpel rod 21 is moved towards the needle tip 25, sealing the sampling groove 200. This reduces puncture resistance and facilitates a smooth puncture process. Simultaneously, the ultrasonic scalpel rod 21 is in an unactivated state, with both negative pressure and gas supply closed. No negative pressure is generated at the sampling groove 200 of the puncture needle 20 during the puncture, ensuring smooth puncture. In contrast, with traditional minimally invasive breast biopsy rotary cutters, negative pressure is continuously generated at the sampling groove 200 of the puncture needle 20 during the puncture process after the sampling groove 200 is sealed, thus affecting the smoothness of the puncture.

[0056] After the puncture needle 20 reaches the designated sampling area, the ultrasonic scalpel rod 21 is... Figure 6 Position moved to Figure 7 The ultrasonic scalpel rod 21 is moved away from the needle tip 25, at which point the sampling groove 200 changes from a closed state to an open state, allowing it to contact the sampled tissue. Then, during the cutting process, negative pressure is activated while gas supply remains closed, creating a vacuum-sealed area. Pressure is maintained for a period to ensure the sampled tissue is completely drawn into the sampling groove 200. Subsequently, the ultrasonic scalpel rod 21 is activated, and simultaneously, the ultrasonic scalpel rod 21 moves from... Figure 7 Position moved to Figure 6 After the cutting is completed, the ultrasonic scalpel rod 21 is deactivated. The sampled tissue remains inside the ultrasonic scalpel rod 21 and then moves with it from the ultrasonic scalpel rod 21... Figure 6 Position moved to Figure 7 The location is after the sealing ring 214 of the ultrasonic scalpel rod 21 retracts to the vent 201 of the puncture needle tube 20. The final sampling process involves turning on the gas supply. Previously, the negative pressure was always on, which will form a negative pressure-gas supply channel loop with the inner cavity 211 of the ultrasonic scalpel rod 21 as the negative pressure passage and the gap between the outer wall of the ultrasonic scalpel rod 21 and the inner wall of the puncture needle tube 20 as the gas supply passage. The sampled tissue left in the inner cavity 211 of the ultrasonic scalpel rod 21 is successfully extracted to the incision 212 of the ultrasonic scalpel rod 21 through the negative pressure, and then falls into the blade collection chamber 12 through the discharge port.

[0057] During operation, the incision 212 on the ultrasonic scalpel rod 21 is... Figure 7 Location to Figure 6 The movement of the device is always kept within the discharge port of the puncture needle 20 in the collection chamber 12, ensuring that the tissue or fluid in the ultrasonic scalpel rod 21 can be directly discharged into the collection chamber 12 at any time and under any circumstances, avoiding the possibility of tissue or fluid falling into the puncture needle 20 and causing blockage.

[0058] The device has the following advantages: the air supply tube and the negative pressure tube exit from the tail of the blade along the air supply tube fixing groove 110 and the negative pressure tube fixing groove 111, avoiding the impact on personnel operation caused by the need for the negative pressure tube to be placed at the front of the blade due to the structure of the ultrasonic scalpel; the collection chamber 12 is used for closed automatic storage of sampled tissue, making the sampling process safer and avoiding secondary contamination; the collection chamber 12 is detachably connected to the lower shell 11 of the blade, which facilitates the replacement of the collection chamber 12 and enables continuous cutting and sampling; a sealing ring 120 is installed at the collection chamber 12, and the collection chamber 12 is connected to the lower shell 11 of the blade through a buckle 15, which solves the sealing problem of the ultrasonic scalpel and realizes the entire closed negative pressure system. At the same time, during operation, the connection between the collection chamber 12 and the lower shell 11 of the blade will be more secure due to the negative pressure, ensuring the sealing of the connection.

[0059] Based on the above embodiments, in this embodiment, the ultrasonic scalpel further includes: a drive structure 4, which is installed inside the housing 1, connected to the needle tube structure 2, and used to drive the needle tube structure 2 to move linearly.

[0060] Specifically, the drive structure 4 includes a drive assembly 40, a transmission assembly 41, and a transducer assembly 43. The transmission assembly 41 is connected to the drive assembly 40. The transducer assembly 43 is disposed on the transmission assembly 41 and is connected to the ultrasonic scalpel rod 21 in the needle structure 2. The drive assembly 40 drives the ultrasonic scalpel rod 21 in the needle structure 2 to move linearly through the transmission assembly 41 and the transducer assembly 43.

[0061] When the drive assembly 40 is working, it drives the transmission assembly 41 to work, which in turn drives the transducer assembly 43 and the ultrasonic scalpel rod 21 in the needle structure 2 to perform linear motion. The transducer assembly 43 includes a transducer body 432, which is connected to the ultrasonic scalpel rod 21.

[0062] The transmission assembly 41 includes a motor gear 410, a transmission gear 411, and a transmission sleeve 412. The motor gear 410 is connected to the drive assembly 40. The transmission gear 411 is connected to the motor gear 410 in a transmission manner. The transmission sleeve 412 passes through the transmission gear 411 and is connected to the transmission gear 411 in a transmission manner. A transducer assembly 43 is provided inside the transmission sleeve 412.

[0063] Both the transmission assembly 41 and the drive assembly 40 are fixed inside the housing 1 by the limiting assembly 42. The drive assembly 40 includes a geared motor 400. When the geared motor 400 is working, it drives the motor gear 410 to rotate. The motor gear 410 drives the transmission gear 411 to rotate, which in turn causes the transmission gear 411 to drive the transmission sleeve 412 to move linearly.

[0064] When assembling the handle of the ultrasonic scalpel, the transmission sleeve 412 of the transducer drive structure 4 is assembled first. That is, the transducer body 432 is first installed into the fixed base 431, and then the fixing sleeve 430 is pressed into the fixed base 431. The drive structure 4 also includes a connecting assembly 44, which is disposed on the transmission assembly 41. The transducer assembly 43 is used to connect to the power supply equipment through the connecting assembly 44. The connecting assembly 44 includes an insulating ring 440, a copper ring 441, a contact ring 442, and a spring pin 443. The insulating ring 440 is disposed on the transmission assembly 41 and is fixedly connected to the transmission sleeve 412. The copper ring 441 is sleeved on the surface of the insulating ring 440 and is fixedly connected to the insulating ring 440. The contact ring 442 is sleeved on the surface of the copper ring 441 and is rotatably connected to the copper ring 441. The spring pin 443 is disposed on the contact ring 442. After the fixed pressure sleeve 430 and the fixed base 431 are installed, the insulating ring 440, copper ring 441, spring pin 443 and contact ring 442 are installed on the transmission sleeve 412 in sequence. At the same time, the power line on the transducer body 432 is connected to the copper ring 441. Finally, the transmission sleeve 412 is pressed into the fixed pressure sleeve 430 and the transmission gear 411 is screwed into the transmission sleeve 412.

[0065] Then assemble the lower housing 14 of the handle: First, use nuts to fix the power interface 9 to the lower housing 14 of the handle, then fix the motor gear 410 to the output shaft of the reduction motor 400, then place the reduction motor 400 into the groove of the lower housing 14 of the handle, and use screws to fix the motor compartment cover 420 and the support body 422 to secure the reduction motor 400; finally, adjust the position of the transmission gear 411 on the transmission sleeve 412, place the transmission gear 411 on the motor compartment cover 420 and the support body 422, ensuring that the transmission gear 411 and the motor gear 410 are properly engaged, and use screws to fix the motor compartment shaft cover 421 and the support shaft cover 423. This ultrasonic scalpel also includes a button 6, a circuit board, and a light guide column 7. When assembling the upper shell 13 of the tool holder, first fix the button 6 to the corresponding position of the upper shell 13 of the tool holder with glue, then fix the light guide post 7 and the circuit board, i.e. the PCBA board 5, to the upper shell 13 of the tool holder with screws, then fix the knob 8 to the upper shell 13 of the tool holder with the upper and lower retaining rings 80, and connect the knob 8 to the end of the transducer body 432. Finally, fix the upper shell 13 of the tool holder to the lower shell 14 of the tool holder with screws.

[0066] Using this drive structure 4, the transducer body 432 and the ultrasonic scalpel rod 21 can be manually connected via knob 8. When knob 8 is rotated and moved towards the upper shell 10 of the scalpel, the transducer body 432 rotates and moves linearly. When the transducer body 432 and the ultrasonic scalpel rod 21 are manually installed, the reduction motor 400 does not rotate, thus the motor gear 410 does not rotate, and consequently the transmission gear 411 does not rotate. At this time, when knob 8 is manually rotated, the surface of the transmission sleeve 412 meshes with the inner wall of the transmission gear 411, and the transducer body 432, together with the transmission sleeve 412, rotates and moves inside the transmission gear 411. When the ultrasonic scalpel rod 21 does not move or rotate, the transducer body 432 is helically connected to the internal thread at the end of the ultrasonic scalpel rod 21 via the connecting thread 4320 at the front end, wherein the thread direction of the transmission sleeve 412 is consistent with the thread direction and pitch of the connecting thread 4320 at the front end of the transducer body 432. Meanwhile, the power supply wiring of the transducer body 432 adopts a rotatable contact ring 442 design with a spring-loaded pin 443. This ensures that when manually rotating the transducer body 432 to connect to the ultrasonic scalpel rod 21, the transducer body 432, along with the transmission sleeve 412, rotates, while the contact ring 442 does not rotate, preventing cable entanglement from affecting the drive of the transducer body 432. On the other hand, it allows the transducer body 432 and the ultrasonic scalpel rod 21 to move automatically via the geared motor 400. That is, during automatic operation, the geared motor 400 rotates, thereby driving the motor gear 410 to rotate, which in turn drives the transmission gear 411 to rotate. At this time, when the ultrasonic scalpel rod 21 can move but cannot rotate, the transducer body 432 and the transmission sleeve 412 can only move within the transmission gear 411. During this process, the geared motor 400 can achieve stepless speed regulation through voltage control, that is, to perform fast cutting and slow cutting, and to make reasonable adjustments for different situations.

[0067] The blade of the ultrasonic scalpel is for single use, while the handle is reusable. The procedure for using the ultrasonic scalpel is as follows: First, assemble the scalpel by inserting the blade into the handle, ensuring the blade housing and handle housing are connected and the latch 15 is securely fastened. Then, rotate knob 8 to tighten the transducer body 432 and the ultrasonic scalpel rod 21. Next, remove the limit rod 32. Finally, insert the negative pressure tube and the air supply tube into the main unit, and simultaneously insert the main unit's power connector into the power interface 9 at the tail of the ultrasonic scalpel handle. Then, proceed with the operation: before puncture, ensure the indicator light 60 is off (press button 6CLOSE to enter this state). Press the forward button on button 6 to activate the reduction motor 400, driving the ultrasonic scalpel rod 21 forward to close the sampling slot 200. During this process, ultrasonic operation is not activated, and both air supply and negative pressure are turned off. After the puncture needle 20 reaches the sampling position, press the back button on button 6 to open the sampling slot 200, which will activate the reduction motor 400 and drive the ultrasonic scalpel rod 21 to move backward. Before cutting, ensure that the indicator light 60 is illuminated (press and hold button 6 OPEN for 3 seconds to enter this state). Press the forward button on button 6 to cut the tissue. During this process, negative pressure is first activated and maintained for a period of time, while gas replenishment remains off. Then, the ultrasonic scalpel rod 21 is activated to cut. Once the cutting is complete, the ultrasonic scalpel rod 21 stops activating. Press the back button on button 6, and after the ultrasonic scalpel rod 21 returns to its initial position, gas replenishment is activated, while negative pressure remains on throughout the process. During sampling, the indicator light 60 remains constantly illuminated, and the above operations (using the forward and back buttons on button 6) can be repeated to achieve continuous sampling. After sampling is completed, ensure the indicator light 60 is off (press button 6CLOSE to enter this state), pull out the ultrasonic scalpel, press the lugs on both sides of the collection chamber 12, pull out the collection chamber 12, and pour out the sampled tissue. Finally, for disassembly, first rotate knob 8 until the transducer body 432 is loosened from the ultrasonic scalpel handle 21, then press the release button 16 on the ultrasonic scalpel to remove the blade from the handle.

[0068] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0069] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0070] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An ultrasonic surgical scalpel, characterized in that, It includes: The housing (1) includes a collection chamber (12) for collecting sampled tissue. The needle tube structure (2) is movably connected to the inside of the shell (1) and one end of the needle tube structure (2) passes through the shell (1). The needle tube structure (2) has an inner cavity (211) inside. The needle tube structure (2) includes a sampling groove (200) and a cut (212) that communicates with the sampling groove (200) through the inner cavity (211). The sampling groove (200) is located outside the shell (1) and the cut (212) is located inside the shell (1). The needle tube structure (2) is used to deliver sampled tissue to the collection chamber (12) through the sampling groove (200), the inner cavity (211) and the cut (212). The needle structure (2) includes: A puncture needle (20) is provided with a sampling groove (200); An ultrasonic scalpel rod (21) is slidably connected to the inside of a puncture needle tube (20), the inner cavity (211) is opened inside the ultrasonic scalpel rod (21), and the incision (212) is opened on the ultrasonic scalpel rod (21). The needle tube structure (2) has a puncture state and a cutting and sampling state. When the needle tube structure (2) is in the puncture state, the ultrasonic scalpel rod (21) is in the first position and the sampling groove (200) is sealed. When the needle tube structure (2) is in the cutting and sampling state, the ultrasonic scalpel rod (21) is in the second position, the sampling groove (200) is opened, and it communicates with the inside of the collection chamber (12) through the inner cavity (211) and the incision (212). The needle structure (2) also includes: An air supply tube seat (22) is provided on the puncture needle tube (20); The gas supply tube connector (23) has one end connected to the inside of the puncture needle tube (20) through the gas supply tube seat (22), and the other end is used to connect to the main unit; Negative pressure pipe connector (26) is disposed inside the housing (1) and is used to connect to the host.

2. The ultrasonic surgical scalpel as described in claim 1, characterized in that, The ultrasonic surgical scalpel also includes: The drive structure (4) is installed inside the housing (1) and is connected to the needle structure (2) and is used to drive the needle structure (2) to move linearly.

3. The ultrasonic surgical scalpel as described in claim 2, characterized in that, The driving structure (4) includes: Driver components (40); A transmission assembly (41) is connected to a drive assembly (40); A transducer assembly (43) is disposed on a transmission assembly (41). The transducer assembly (43) is connected to a needle tube structure (2). The drive assembly (40) drives the needle tube structure (2) to move linearly through the transmission assembly (41) and the transducer assembly (43).

4. The ultrasonic surgical scalpel as described in claim 3, characterized in that, The transmission assembly (41) includes: Motor gear (410), which is connected to drive assembly (40); A transmission gear (411) is connected to the motor gear (410) in a transmission manner; A transmission sleeve (412) is inserted inside the transmission gear (411) and is connected to the transmission gear (411) in a transmission manner. A transducer assembly (43) is provided inside the transmission sleeve (412).

5. The ultrasonic surgical scalpel as described in claim 3, characterized in that, The driving structure (4) also includes: A connection component (44) is disposed on the transmission component (41), and the transducer component (43) is used to connect to the power supply equipment via the connection component (44).

6. The ultrasonic surgical scalpel as described in claim 5, characterized in that, The connection component (44) includes: An insulating ring (440) is disposed on the transmission assembly (41); A copper ring (441) is fitted onto the surface of an insulating ring (440); A contact ring (442) is fitted onto the surface of a copper ring (441); A spring pin (443) is disposed on a contact ring (442).

7. The ultrasonic surgical scalpel as described in claim 1, characterized in that, The ultrasonic surgical scalpel also includes: The limiting structure (3) includes a slider (30) and a limiting rod (32). The slider (30) is connected to the needle tube structure (2) through a positioning pin (31). The slider (30) is slidably connected inside the housing (1). The limiting rod (32) is disposed on the housing (1). The limiting rod (32) has a first state and a second state. When the limiting rod (32) is in the first state, it is used to restrict the slider (30) from sliding. When the limiting rod (32) is in the second state, the limiting rod (32) is away from the slider (30).

8. The ultrasonic surgical scalpel as described in claim 1, characterized in that, The housing (1) includes: The tool housing includes an upper tool housing (10) and a lower tool housing (11) connected to the upper tool housing (10), and the collection chamber (12) is disposed on the lower tool housing (11); The tool holder is connected to the tool holder by a snap fastener (15). The tool holder includes an upper tool holder shell (13) and a lower tool holder shell (14) connected to the upper tool holder shell (13).

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