Forceps-type ultrasonic scalpel and ultrasonic surgical system

Abstract

The present application relates to the field of surgical instruments, and discloses a pincer type ultrasonic scalpel and an ultrasonic surgical system. The pincer type ultrasonic scalpel comprises a scalpel rod assembly, a pincer type handle assembly and a transducer assembly, the scalpel rod assembly comprises a scalpel rod, an inner sleeve, an outer sleeve, a clamping arm and a fixing piece fixed to the inner sleeve; the pincer type handle assembly comprises a handle sleeve, handle supports are fixedly connected to the two outer sides of the handle sleeve, two pincer type triggers are elastically connected to the two outer sides of the handle supports, a handle pull rod is arranged between the two inner sides of the handle supports, the upper end of the handle pull rod is connected with a transmission pull rod and the lower end of the handle pull rod is connected with the two pincer type triggers, the transmission pull rod is movably arranged in the handle sleeve, and the transmission pull rod is connected with the fixing piece; the end of the scalpel rod is connected with the transducer assembly. The pincer type handle assembly is adopted to realize the clamping and opening of the clamping jaw, the operation is more convenient, the control is more subtle, and the scalpel head is more stable; the ultrasonic scalpel is small in size and flexible in operation, and is more suitable for minimally invasive surgical operations such as neurosurgery and pediatric surgery.

Description

Technical Field

[0001] This invention relates to the field of surgical instruments, and more particularly to forceps-type ultrasonic scalpels and ultrasonic surgical systems. Background Technology

[0002] An ultrasonic scalpel is a medical device that converts electrical energy into mechanical energy through a transducer, amplifies the amplitude through an amplitude transformer, and transmits it to the scalpel head to cut tissue and coagulate blood. This device primarily utilizes the mechanical impact, cavitation effect, and thermal effect generated by high-frequency vibration. Compared to traditional surgical methods, ultrasonic scalpels can simultaneously coagulate blood while cutting the target tissue, resulting in smaller incisions and promoting faster patient recovery. Therefore, ultrasonic scalpels are increasingly widely used in various surgical procedures.

[0003] Existing minimally invasive surgical ultrasonic scalpels are mostly pistol-shaped, with the working end's blade and the operating end's handle arranged at a 90° angle. During use, the front jaws are gripped by pulling a trigger. However, this type of ultrasonic scalpel has the following problems:

[0004] 1) Because the blade of the handheld ultrasonic scalpel is set vertically to the trigger, it violates people's operating habits and inherent intuition, making it inconvenient to operate;

[0005] 2) When the trigger of a grip-type ultrasonic scalpel is pulled, the force exerted by the fingers towards the palm creates significant wobbling. This wobbling is amplified because the operating end and working end are perpendicularly positioned at 90°, and the longer the scalpel head, the more pronounced the wobbling. Therefore, this grip-triggered operation greatly reduces the stability of the scalpel head, directly affecting the delicate manipulation at the scalpel jaws during surgery and reducing surgical precision.

[0006] 3) The handheld ultrasonic scalpel, due to its large handle and the need for vertical gripping, can obstruct the doctor's view during open surgery.

[0007] 4) While handheld ultrasonic scalpels are suitable for general minimally invasive surgery, they are less flexible and precise in neurosurgical minimally invasive surgery, pediatric surgery, or some surgeries that require access to narrow passages due to their large size and gun-like grip.

[0008] Therefore, there is an urgent need for a new ultrasonic scalpel and ultrasonic surgical system to solve the above-mentioned technical problems. Summary of the Invention

[0009] Based on the above, the purpose of this invention is to provide a forceps-type ultrasonic scalpel and an ultrasonic surgical system to improve the operating comfort, blade stability and fine clamping control of the ultrasonic scalpel, and reduce the size of the ultrasonic scalpel, making it more suitable for minimally invasive surgical procedures such as neurosurgery and pediatric surgery.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] This invention provides a forceps-type ultrasonic scalpel, comprising a scalpel shaft assembly, a forceps-type handle assembly, and a transducer assembly. The scalpel shaft assembly includes a scalpel shaft for transmitting ultrasonic vibrations, an inner sleeve sleeved around the circumference of the scalpel shaft, an outer sleeve sleeved around the circumference of the inner sleeve, a clamping arm pivotally connected to the front end of the outer sleeve and the front end of the inner sleeve, and a fixing member fixed to the end of the inner sleeve. The clamping arm and the scalpel head form jaws. When the inner sleeve moves back and forth, it can drive the clamping arm to rotate, thereby opening or closing the jaws. The forceps-type handle assembly includes a handle sleeve. The end of the transducer assembly is inserted into the handle sleeve from the front; a handle bracket is fixedly connected to both outer sides of the handle sleeve, and two tweezer triggers are elastically connected to both outer sides of the handle bracket; a handle pull rod is provided between the two inner sides of the handle bracket; a transmission pull rod is connected to the upper end of the handle pull rod and the lower end is connected to the two tweezer triggers; the transmission pull rod is movably disposed in the handle sleeve and is connected to the fixing member; the front end of the transducer assembly is inserted into the handle sleeve from the rear and provides ultrasonic vibration to the blade bar; the end of the blade bar is fixedly connected to the front end of the transducer assembly.

[0012] As an optional technical solution for a forceps-type ultrasonic scalpel, the two forceps triggers are respectively connected to the handle bracket via two trigger springs; the inner sides of the two forceps triggers are respectively connected to the handle lever via two trigger pull rods; when the two forceps triggers are pressed, the two trigger pull rods can drive the handle lever to move, and the handle lever drives the transmission lever to move backward; when the two forceps triggers are released, the trigger pull rods automatically reset and drive the handle lever to move, and the handle lever drives the transmission lever to move forward.

[0013] As an optional technical solution for a forceps-type ultrasonic scalpel, the fixing component includes a mounting part, a first abutment part located on the front side of the mounting part, and a second abutment part located on the rear side of the mounting part. The mounting part is hollow in the middle to allow the inner sleeve to pass through it. The upper end of the transmission rod is a locking part, which is installed on the mounting part and locked between the first abutment part and the second abutment part. The locking part is used to pull the fixing component to move back and forth.

[0014] As an optional technical solution for a forceps-type ultrasonic scalpel, the handle support includes a left side plate and a right side plate respectively fixed to the outside of the handle sleeve and spliced ​​together, both of which are L-shaped; the handle pull rod is also L-shaped, including a vertical rod and a horizontal rod, the upper end of the vertical rod is connected to the transmission pull rod, the horizontal rod is located between the left side plate and the right side plate, and horizontal plates are fixed above and below the horizontal rod, with a first pin fixed between the two horizontal plates; the trigger pull rod is long and narrow, one end of each of the two trigger pull rods is rotatably connected to the first pin, and the other ends of the two trigger pull rods are connected to the two forceps triggers respectively through two second pins.

[0015] As an optional technical solution for a forceps-type ultrasonic scalpel, the "L"-shaped interior angle of the handle bracket is greater than 90°, and the "L"-shaped interior angle of the handle lever is greater than 90°.

[0016] As an optional technical solution for a forceps-type ultrasonic scalpel, the extension direction of the operating handle of the handle bracket is set at an angle to the axial direction of the scalpel shaft, and the angle is 5 degrees to 10 degrees.

[0017] As an optional technical solution for a forceps-type ultrasonic scalpel, the lower part of the transmission rod is provided with a longitudinal channel, and the upper end of the handle rod can move up and down within the longitudinal channel; the upper end of the handle rod is provided with an elongated hole extending in the vertical direction, and the two side walls of the longitudinal channel of the transmission rod are provided with first through holes, and a first connecting post passes through and connects the first through holes and the elongated holes; the handle sleeve includes a left sleeve and a right sleeve spliced ​​together, and the inner walls of the left sleeve and the right sleeve are both recessed with transmission tracks extending in the front-back direction, and the two ends of the first connecting post can move back and forth along the transmission tracks; positioning posts are also protruding on both sides of the transmission rod, and the positioning posts can move back and forth along the transmission tracks.

[0018] As an alternative technical solution for a forceps-type ultrasonic surgical scalpel, the scalpel shaft assembly further includes:

[0019] A rotating dial, which is long and tubular, is fitted onto the outer side of the end of the outer sleeve, and the rotating dial is engaged with the inner wall of the handle sleeve.

[0020] The second connecting post extends radially from the inside to the outside, connecting the tool bar, the inner sleeve, the outer sleeve, and the rotating wheel. When the rotating wheel rotates, it can drive the tool bar, the inner sleeve, the outer sleeve, and the clamping arm to rotate synchronously. The inner sleeve can move back and forth relative to the second connecting post.

[0021] As an alternative technical solution for a forceps-type ultrasonic surgical scalpel, the scalpel shaft assembly further includes:

[0022] A fixed knob, in the form of a tube, is threadedly connected to the front end of the handle sleeve, and the inner wall of the fixed knob is engaged with the rotating dial.

[0023] The rotating dial has a first fixing rib and a second fixing rib protruding outward from its tube body. The inner wall of the handle sleeve has a first groove, and the first fixing rib is engaged in the first groove. The fixed knob has a second groove inside. When the fixed knob is tightened with the front end of the handle sleeve, the second fixing rib is engaged in the second groove.

[0024] As an optional technical solution for a forceps-type ultrasonic scalpel, the inner sleeve has a first mounting hole at its front end and a protruding post at its end, which is engaged with the first mounting hole; the outer sleeve has a second mounting hole at its front end and a second through hole at its end, which are connected by a third connecting post inserted therein; when the inner sleeve moves back and forth, it can drive the clamping arm to rotate relative to the blade head of the scalpel.

[0025] As an optional technical solution for a forceps-type ultrasonic scalpel, the outer diameter of the scalpel shaft is less than or equal to 4mm, the diameter of the scalpel head is less than 2mm, and the length of the scalpel shaft is 10cm-20cm.

[0026] As an optional technical solution for a forceps-type ultrasonic scalpel, the transducer assembly includes a connector, multiple piezoelectric ceramics, a housing, and a cable. The front end of the connector is threadedly connected to the end of the scalpel handle. The piezoelectric ceramics have a third through hole in the middle, and the multiple piezoelectric ceramics are sleeved and installed on the connector through the third through hole. The cable is extended from the end of the connector. The housing covers the connector, the piezoelectric ceramics, and part of the cable.

[0027] An ultrasonic surgical system includes an ultrasonic energy platform host and a control switch, and also includes a forceps-type ultrasonic scalpel as described in any of the above embodiments. The ultrasonic energy platform host is connected to the transducer assembly, and the control switch is connected to the ultrasonic energy platform host. The control switch is used to control the energy transmission of the ultrasonic energy platform host.

[0028] As an optional technical solution for an ultrasonic surgical system, the control switch is a foot switch.

[0029] The beneficial effects of this invention are as follows:

[0030] The tweezer-type ultrasonic scalpel and ultrasonic surgical system provided by this invention employ a tweezer-shaped handle assembly. Through finger pinching and tweezer trigger transmission, the scalpel jaws are clamped and closed, making operation more convenient, conforming to human operating habits and intuition, and avoiding obstruction of the surgeon's view. When clamping tissue, the clamping force of the jaws can be more precisely controlled by adjusting the finger pinching force. During surgery, it effectively reduces scalpel shaft wobbling caused by operation, improving the stability of the procedure. Compared to traditional grip-type ultrasonic scalpels, this invention offers more refined controllability, a more convenient and comfortable operating experience, and higher surgical precision. Moreover, the tweezer-type handle assembly makes the ultrasonic scalpel compact and flexible, making it more suitable for minimally invasive surgeries such as neurosurgery and pediatric surgery, as well as other minimally invasive surgical procedures requiring access to narrow passages. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the forceps-type ultrasonic scalpel provided in an embodiment of the present invention;

[0032] Figure 2 This is an exploded view of the forceps-type ultrasonic scalpel provided in an embodiment of the present invention;

[0033] Figure 3 This is a side view of the forceps-type ultrasonic scalpel removing the left cannula according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the forceps-type ultrasonic scalpel used in an embodiment of the present invention for removing the left-side cannula;

[0035] Figure 5 This is a perspective view of the removal of the left cannula by a forceps-type ultrasonic scalpel provided in an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the tool holder assembly and the tweezers handle assembly provided in the embodiments of the present invention. Figure 1 ;

[0037] Figure 7 This is a schematic diagram of the structure of the tool holder assembly and the tweezers handle assembly provided in the embodiments of the present invention. Figure 2 ;

[0038] Figure 8 This is a schematic diagram of the internal structure of the forceps-type ultrasonic scalpel provided in an embodiment of the present invention. Figure 1 ;

[0039] Figure 9 This is a schematic diagram of the internal structure of the forceps-type ultrasonic scalpel provided in an embodiment of the present invention. Figure 2 ;

[0040] Figure 10 This is a partial structural fluoroscopy of the forceps-type ultrasonic scalpel provided in an embodiment of the present invention. Figure 1 ;

[0041] Figure 11 This is a partial structural fluoroscopy of the forceps-type ultrasonic scalpel provided in an embodiment of the present invention. Figure 2 ;

[0042] Figure 12 This is the state in which the handle pull rod drives the transmission pull rod to move within the transmission track, as provided in the embodiments of the present invention. Figure 1 ;

[0043] Figure 13 This is the state in which the handle pull rod drives the transmission pull rod to move within the transmission track, as provided in the embodiments of the present invention. Figure 2 ;

[0044] Figure 14 This is a schematic diagram of the structure of the ultrasonic surgical system provided in an embodiment of the present invention.

[0045] In the picture:

[0046] 100 - Ultrasonic energy platform main unit; 200 - Control switch; 300 - Forceps-type ultrasonic scalpel;

[0047] 1-Tool holder assembly; 11-Tool holder; 111-Tool head; 12-Inner sleeve; 13-Outer sleeve; 14-Clamping arm; 15-Fixing component; 151-Mounting part; 152-First stop part; 153-Second stop part; 16-Rotating dial; 161-First fixing rib; 162-Second fixing rib; 17-Second connecting post; 18-Fixing knob;

[0048] 2-Tweezers handle assembly; 21-Handle sleeve; 211-Transmission rail; 22-Handle bracket; 23-Tweezers trigger; 24-Handle pull rod; 241-Vertical rod; 242-Horizontal rod; 243-Elongated hole; 25-Transmission pull rod; 251-Snap-fit ​​part; 252-Longitudinal channel; 253-First connecting post; 254-Positioning post; 26-Trigger spring; 27-Trigger pull rod; 271-First pin; 272-Second pin; 28-Horizontal plate;

[0049] 3-Transducer assembly; 31-Cable. Detailed Implementation

[0050] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0051] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0054] like Figures 1-13 As shown, this embodiment provides a forceps-type ultrasonic scalpel, including a scalpel shaft assembly 1, a forceps handle assembly 2, and a transducer assembly 3. (Reference) Figures 1-5The blade assembly 1 includes a blade 11, an inner sleeve 12, an outer sleeve 13, a clamping arm 14, and a fixing member 15. The blade 11 is a long, cylindrical rod-shaped component used to transmit the ultrasonic vibrations of the transducer assembly 3. The foremost end of the blade 11 is a blade head 111, which is machined into a specific shape to facilitate tissue cutting and coagulation operations. The end of the blade 11 is used for fixed connection with the transducer assembly 3. Preferably, the blade 11 is made of titanium alloy, which has the advantages of being lightweight, high-strength, and biocompatible. The inner sleeve 12 is a long, hollow tube that fits around the outer periphery of the blade 11. The front end of the inner sleeve 12 is pivotally connected to the clamping arm 14, and the end of the inner sleeve 12 is fixed with the fixing member 15. Specifically, the inner sleeve 12 and the fixing member 15 can be fixed by adhesive, snap-fit, or other methods. Preferably, the fixing member 15 is made of plastic or metal. The outer sleeve 13 is a long, hollow tube fitted around the outer periphery of the inner sleeve 12. The front end of the outer sleeve 13 is pivotally connected to the clamping arm 14. The clamping arm 14 and the blade head 111 of the blade shank 11 form a jaw structure. When the inner sleeve 12 moves back and forth, it drives the clamping arm 14 to rotate relative to the blade head 111, causing the jaws to open or close, thereby enabling dissection, cutting, ligation, coagulation, and / or hemostasis of human tissue. It should be noted that in this embodiment, "front end" refers to the end closer to the patient's body, "end end" refers to the end closer to the operator, and "back and forth movement" refers to moving closer to or away from the patient's body along the axis of the blade shank.

[0055] refer to Figure 4 and Figure 5The tweezer-type handle assembly 2 is shaped like tweezers and includes a handle sleeve 21, a handle bracket 22, two tweezer triggers 23, a handle pull rod 24, and a transmission pull rod 25. The handle sleeve 21 is tubular, open at both ends, and hollow inside, accommodating the blade assembly 1 and the transducer assembly 3. It serves as the carrier for connecting the tweezer-type handle assembly 2 to other components. Specifically, the end of the blade assembly 1 is inserted into the handle sleeve 21 from the front, and the front end of the transducer assembly 3 is inserted into the handle sleeve 21 from the rear. A protrusion is provided at the bottom of the handle sleeve 21, and the two outer sides of the protrusion are fixedly connected to the handle bracket 22. Exemplarily, the handle sleeve 21 and the handle bracket 22 can be fixed by screws, clips, adhesive, etc. The two outer sides of the handle bracket 22 are elastically connected to the two tweezer triggers 23 respectively. The handle pull rod 24 is located between the two inner sides of the handle bracket 22 and can move along the extension direction of the operating handle of the handle bracket 22 (i.e., the part of the handle bracket 22 for holding away from the handle sleeve 21). The upper end of the handle lever 24 is connected to the transmission lever 25, and the lower end is connected to the two tweezer triggers 23. The transmission lever 25 is movably disposed within the handle sleeve 21 and is connected to the fixing member 15. When the two tweezer triggers 23 are pressed, the handle lever 24 is moved, which in turn moves the transmission lever 25 backward. The transmission lever 25 moves the fixing member 15 and the inner sleeve 12 backward synchronously. At this time, the clamping arm 14 rotates to close the jaws, thereby achieving the function of clamping the tissue. When the two tweezer triggers 23 are released, they return to their original position and move the handle lever 24. The handle lever 24 moves the transmission lever 25 forward, which in turn moves the fixing member 15 and the inner sleeve 12 forward synchronously. At this time, the clamping arm 14 rotates to open the jaws. This embodiment uses a tweezer-like handle assembly, which is operated by pinching with the fingers, making the gripping and cutting action of the ultrasonic scalpel more flexible and the gripping force more controllable, making it more suitable for surgeries that require delicate operation.

[0056] refer to Figure 1 and Figure 2 The transducer assembly 3 is cylindrical in shape, and the end of the blade 11 is fixedly connected to the front end of the transducer assembly 3. The transducer assembly 3 is used to provide ultrasonic vibration to the blade 11. Preferably, the transducer assembly 3 in this embodiment is cylindrical in shape and includes a connector, multiple piezoelectric ceramics, a housing, and a cable 31. The connector is cylindrical and has an internal thread at its front end for fixed connection with the external thread at the end of the blade 11. The connector is made of metal, preferably titanium alloy. The piezoelectric ceramics are disc-shaped with a third through hole in the center. Multiple piezoelectric ceramics are fitted onto the connector through the third through hole. In this embodiment, multiple piezoelectric ceramics are stacked, and the number of piezoelectric ceramics is preferably even. The cable 31 is extended from the end of the connector and is used for signal or energy transmission. The housing is preferably made of metal and covers the connector, piezoelectric ceramics, and part of the cable 31.

[0057] The forceps-type ultrasonic scalpel provided in this embodiment adopts a forceps-shaped handle assembly. Through the pinching of the fingers and the transmission of the forceps trigger 23, the clamping and closing of the blade jaws is achieved, making operation more convenient, conforming to human operating habits and inherent intuition, and avoiding obstruction of the doctor's view. When clamping tissue, the clamping force of the jaws can be more precisely controlled by controlling the pinching force of the fingers. During the operation, it can effectively reduce the shaking of the blade 11 caused by operation, and improve the stability of the operation. Compared with the traditional grip ultrasonic scalpel, the present invention has more refined controllability, a more convenient and comfortable operating experience, and higher surgical precision. Moreover, the forceps-type handle assembly 2 makes the ultrasonic scalpel compact and flexible to operate, and compared with the traditional scalpel, it is more suitable for performing minimally invasive surgical procedures such as neurosurgery, pediatric surgery, cardiac surgery, or other procedures that require operation in narrow channels.

[0058] Furthermore, neurosurgical and cardiac surgeries are highly sensitive to the thermal effects of instruments, but currently only bipolar or monopolar electrosurgical units or forceps can be used. These surgeries urgently require a surgical instrument that can both cut and coagulate while maintaining a low temperature to fill this gap. The forceps-type ultrasonic scalpel provided by this invention effectively fills this gap compared to electrosurgical units. Moreover, this forceps-type ultrasonic scalpel is comfortable to hold, flexible to operate, reduces fatigue from prolonged use, and meets the needs of surgeries requiring forceps manipulation.

[0059] Since the forceps-type ultrasonic scalpel of this embodiment is designed for minimally invasive surgeries such as neurosurgery and pediatric surgery, or other minimally invasive surgical procedures requiring access to narrow channels, the forceps-type ultrasonic scalpel of this embodiment is more compact and lightweight than existing ultrasonic scalpels. For example, it has a thinner shank diameter, a smaller blade head, jaws, and transducer assembly. Specifically, the outer diameter of the shank 11 in this embodiment is less than or equal to 4 mm; the diameter of the blade head 111 is less than 2 mm; and the working length of the shank 11 is 10 cm-20 cm, preferably 15 cm. The miniaturized forceps-type ultrasonic scalpel of this embodiment offers a more flexible operating experience than conventional ultrasonic scalpels. The thinner shank assembly 1 can pass through narrow channels, and the smaller blade head 111 and jaw design facilitate cutting, coagulation, and clamping operations on small tissues.

[0060] As a preferred option, refer to Figures 4-9In this embodiment, trigger springs 26 are respectively carved out on both sides of the handle bracket 22. Two tweezer triggers 23 are connected to the two trigger springs 26 in a corresponding manner. The two trigger springs 26 open outward to form a certain angle. Utilizing the elasticity of the metal plate itself, when the trigger springs 26 deform inward, they can generate an outward rebound force. In this embodiment, the trigger springs 26 have good elasticity and are reliable in use. The tweezer triggers 23 can increase the contact area between the trigger springs 26 and the fingers, making it more comfortable for the fingers to press the trigger springs 26. Furthermore, the inner sides of the two tweezer triggers 23 are connected to the handle lever 24 through two trigger pull rods 27. The trigger pull rods 27 are long and preferably made of metal. When the two tweezer triggers 23 are pressed, the two trigger springs 26 elastically deform, and simultaneously the two trigger levers 27 drive the handle lever 24 to move. The handle lever 24 drives the transmission lever 25 to move backward, and the transmission lever 25 drives the fixing member 15 and the inner sleeve 12 to move backward synchronously. At this time, the clamping arm 14 rotates to close the jaws. When the two tweezer triggers 23 are released, the two trigger springs 26 elastically return to their original position, and the trigger lever 27 drives the handle lever 24 to move. The handle lever 24 drives the transmission lever 25 to move forward, and the transmission lever 25 drives the fixing member 15 and the inner sleeve 12 to move forward synchronously. At this time, the clamping arm 14 rotates to open the jaws. This embodiment realizes the power transmission from the tweezer triggers 23 to the jaws of the blade head 111 through the above-mentioned transmission structure. By using the trigger springs 26 as the spring element of the whole machine, the whole system uses the spring force to achieve reset, so that the clamping and opening conditions of the jaws of the blade head 111 can be cyclically operated.

[0061] Further reference Figures 4-9 The handle bracket 22 includes a left side plate and a right side plate that are fixed to the outside of the handle sleeve 21 and spliced ​​together. Both the left side plate and the right side plate are L-shaped metal plates, with a gap between the left side plate and the right side plate for placing other components. The handle lever 24 is also L-shaped, including a vertical rod 241 and a horizontal rod 242. The upper end of the vertical rod 241 is inserted into the handle sleeve 21 and connected to the transmission lever 25. The horizontal rod 242 is located between the left side plate and the right side plate. Horizontal plates 28 are fixed above and below the horizontal rod 242, and a first pin 271 is fixed between the two horizontal plates 28. Both ends of the trigger lever 27 are provided with pin holes. The first pin 271 passes through the pin holes at one end of the two trigger levers 27, and the two trigger levers 27 are stacked and passed through, so that both trigger levers 27 can rotate around the first pin 271. The other ends of the two trigger levers 27 are connected to two tweezer triggers 23 respectively through two second pins 272.

[0062] Preferably, the interior angle of the "L" shape of the handle bracket 22 is greater than 90°, and the interior angle of the "L" shape of the handle lever 24 is also greater than 90°, to reduce the obstruction of the surgeon's view by the scalpel during surgery. Further, such as... Figure 3As shown, in this embodiment, the operating handle of the handle bracket 22 is not parallel to the scalpel bar 11, and the extension direction of the operating handle of the handle bracket 22 forms an angle α with the axial direction of the scalpel bar 11. This angle α is preferably 5-10 degrees. At this angle, the obstruction of the surgeon's view by the scalpel and the surgeon's hand is reduced, providing a more comfortable operating experience, reducing intraoperative fatigue, and improving surgical efficiency. Further, the aforementioned angle α is preferably 7 degrees.

[0063] As a preferred option, refer to Figures 8-13 The lower part of the transmission rod 25 is provided with a longitudinal channel 252, and the upper end of the handle rod 24 can move up and down within the longitudinal channel 252. The upper end of the handle rod 24 is provided with an elongated hole 243 extending in the vertical direction. The two side walls of the longitudinal channel 252 of the transmission rod 25 are provided with first through holes, and the first connecting post 253 passes through and connects the first through holes and the elongated hole 243. The handle sleeve 21 includes a left sleeve and a right sleeve that are spliced ​​together. The inner walls of the left sleeve and the right sleeve are both recessed with a transmission track 211 extending in the front-back direction. The two ends of the first connecting post 253 can move back and forth along the transmission track 211. The first connecting post 253 is preferably a cylindrical fixing pin. The two sides of the transmission rod 25 are also provided with positioning posts 254, which can move back and forth along the transmission track 211.

[0064] Further, the fixing member 15 includes a mounting portion 151, a first abutment portion 152 located on the front side of the mounting portion 151, and a second abutment portion 153 located on the rear side of the mounting portion 151. The mounting portion 151 is hollow in the middle to allow the inner sleeve 12 to pass through it. The upper end of the transmission rod 25 is a snap-fit ​​portion 251, which is mounted on the mounting portion 151 and snaps between the first abutment portion 152 and the second abutment portion 153. The snap-fit ​​portion 251 is used to pull the fixing member 15 to move back and forth. Preferably, in this embodiment, the fixing member 15 is generally in the shape of a stepped cylinder, wherein the mounting portion 151 is a first cylinder, the first abutment portion 152 is a second cylinder, and the second abutment portion 153 is a third cylinder. The outer diameter of the first cylinder is smaller than the outer diameters of the second cylinder and the third cylinder, respectively. The first cylinder, the second cylinder, and the third cylinder are all hollow to allow the inner sleeve 12 to pass through them. The locking part 251 is preferably in the shape of a semi-circular arc, used to hold the first cylinder to pull the fixing member 15 forward or backward. This configuration is simple in structure and easy to operate. When the locking part 251 moves forward or backward, it can simultaneously drive the fixing member 15 and the inner sleeve 12 to move forward or backward.

[0065] refer to Figure 4 , Figure 5 , Figure 10 and Figure 11To facilitate adjustment of the jaw direction, in an optional embodiment, the tool holder assembly 1 further includes a rotating wheel 16 and a second connecting post 17. The rotating wheel 16 is a long tube, made of metal or plastic, and is fitted onto the outer side of the end of the outer sleeve 13. The rotating wheel 16 engages with the inner wall of the handle sleeve 21. The second connecting post 17 passes radially from the inside out through a pre-drilled hole on the tool holder 11, inner sleeve 12, outer sleeve 13, and rotating wheel 16. By rotating the rotating wheel 16, the tool holder 11, inner sleeve 12, outer sleeve 13, and the clamping arm 14 mounted on the inner sleeve 12 can rotate together, thereby adjusting the jaw direction. Preferably, the second connecting post 17 is a long, cylindrical pin made of metal. It should be noted that the pre-drilled hole on the inner sleeve 12 is a long, narrow hole, allowing the inner sleeve 12 to move back and forth relative to the second connecting post 17. The aforementioned structure allows for adjustment of the clamp direction both before and during surgery, facilitating adaptation to different surgical environments.

[0066] Furthermore, the tool holder assembly 1 also includes a tubular fixing knob 18. The fixing knob 18 is made of metal or plastic, hollow inside, and has internal threads for connecting with the external threads pre-drilled at the front end of the handle sleeve 21. The inner wall of the fixing knob 18 engages with the rotating dial 16. Specifically, the rotating dial 16 has a first fixing rib 161 and a second fixing rib 162 protruding outward from its tube body. The inner wall of the handle sleeve 21 has a first groove, and the first fixing rib 161 engages in the first groove. The fixing knob 18 has a second groove inside, and when the fixing knob 18 is tightened with the front end of the handle sleeve 21, the second fixing rib 162 engages in the second groove. In this embodiment, the ends of components such as the inner sleeve 12, outer sleeve 13, and rotating dial 16 are inserted into the front end of the handle sleeve 21 and installed inside the handle sleeve 21. After adjusting the jaw direction, the fixing knob 18 is fitted through the front end of the rotating dial 16, and then the fixing knob 18 is rotated to connect with the external thread of the handle sleeve 21 until it is locked. At this time, the fixing knob 18 completes the fixed installation of the rotating dial 16 together with the blade assembly 1, realizes the connection between the blade assembly 1 and the tweezer handle assembly 2, and locks the jaw direction.

[0067] Optionally, in this embodiment, the inner sleeve 12 has a first mounting hole at its front end. The clamping arm 14 is elongated and flat, with a connecting end at its end. A protruding post is provided at the lower part of the connecting end, and the protruding post is engaged in the first mounting hole. The outer sleeve 13 has a second mounting hole at its front end, and a second through hole is provided at the upper part of the connecting end of the clamping arm 14. The second mounting hole and the second through hole are connected by a third connecting post inserted therein, allowing the clamping arm 14 to move in a circular motion around the third connecting post. Since the end of the clamping arm 14 is connected to the outer sleeve 13 and can move in a circular motion around the third connecting post, when the inner sleeve 12 moves back and forth, the clamping arm 14 will rotate around the third connecting post, that is, rotate relative to the blade head 111 of the blade shank 11, thereby realizing the closing and opening of the jaw clamping function between the clamping arm 14 and the blade shank 11. Preferably, the third connecting post is a pin.

[0068] The working principle of the forceps-type ultrasonic scalpel in this embodiment is as follows:

[0069] Place the tweezer handle assembly 2 into the recessed position between the thumb and index finger (i.e., the web of the hand). When in use, press the tweezer trigger 23 on both sides with two fingers. The tweezer trigger 23 drives the trigger spring 26 to move towards the center, causing the trigger spring 26 to deform and generate an outward rebound force.

[0070] When both tweezer triggers 23 are pressed simultaneously, the ends of the two trigger levers 27 with the second pins 272 move closer together. Since the force of both trigger levers 27 is on the first pin 271, the first pin 271 causes the handle lever 24 to move in the direction of the operating handle. The movement of the handle lever 24 pulls the transmission lever 25 connected above it. Since the transmission lever 25 is installed on the transmission track 211 inside the handle sleeve 21, it will move backward along the transmission track 211. The transmission lever 25 will pull the fixing part 15 in contact with it, that is, it can simultaneously pull the inner sleeve 12 backward. After the clamping arm 14 connected to the front end of the inner sleeve 12 is pulled backward by the inner sleeve 12, the clamping arm 14 will rotate counterclockwise around the third connecting post on the outer sleeve 13 towards the blade bar 11, thereby realizing the closing action of the jaws at the front end of the blade head 111.

[0071] When the finger releases the pressure on the tweezer trigger 23, the trigger spring 26, due to deformation, generates an outward rebound force, which automatically ejects the tweezer trigger 23 and returns it to its original position. At the same time, the rebound force pushes the handle lever 24 back to its original position, and together with the transmission lever 25, it will be pushed back to its initial position. That is, the transmission lever 25 pushes the inner sleeve 12 towards the jaws, and then the inner sleeve 12 pushes the connection point at the lower part of the clamping arm 14. The clamping arm 14, under force, will rotate clockwise around the third connecting post on the outer sleeve 13 towards the blade bar 11, thereby realizing the opening action of the jaws at the front end of the blade head 111.

[0072] like Figure 14 As shown, this embodiment also provides an ultrasonic surgical system, including an ultrasonic energy platform host 100 and a control switch 200, as well as the aforementioned forceps-type ultrasonic scalpel. The ultrasonic energy platform host 100 is connected to the transducer assembly 3. The ultrasonic energy platform host 100 outputs energy to the transducer assembly 3, which converts the energy into the scalpel handle 11, creating biological effects such as mechanical vibration and cavitation to cut or coagulate tissue. The control switch 200 is connected to the ultrasonic energy platform host 100 and is used to control the energy transmission of the ultrasonic energy platform host 100. Preferably, the control switch 200 is a foot switch, which is more convenient for surgical operation. The ultrasonic surgical system of this embodiment uses a forceps-type ultrasonic scalpel, which is more convenient to operate, allows for finer control, and provides a more stable scalpel head. Furthermore, due to the small size and flexible operation of the forceps-type ultrasonic scalpel, it is more suitable for minimally invasive surgical procedures such as neurosurgery and pediatric surgery.

[0073] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A forceps-type ultrasonic scalpel, characterized in that, include: The blade assembly (1) includes a blade (11) for transmitting ultrasonic vibration, an inner sleeve (12) sleeved around the outer periphery of the blade (11), an outer sleeve (13) sleeved around the outer periphery of the inner sleeve (12), a clamping arm (14) pivotally connected to the front end of the outer sleeve (13) and the front end of the inner sleeve (12), a fixing member (15) fixed to the end of the inner sleeve (12), a rotating dial (16), and a second connecting post (17). The clamping arm (14) forms a jaw with the blade head (111) of the blade (11). When the inner sleeve (12) moves back and forth, it can drive the clamping arm (111) to move. The holding arm (14) rotates to open or close the jaws; the rotating wheel (16) is a long tube and is sleeved on the outside of the end of the outer sleeve (13); the second connecting post (17) radially connects the knife bar (11), the inner sleeve (12), the outer sleeve (13) and the rotating wheel (16) from the inside to the outside; when the rotating wheel (16) rotates, it can drive the knife bar (11), the inner sleeve (12), the outer sleeve (13) and the holding arm (14) to rotate synchronously; the inner sleeve (12) can move back and forth relative to the second connecting post (17); The tweezers handle assembly (2) includes a handle sleeve (21). The end of the knife bar assembly (1) is inserted into the handle sleeve (21) from the front. The rotating dial (16) is engaged with the inner wall of the handle sleeve (21). A handle bracket (22) is fixedly connected to both outer sides of the handle sleeve (21). Two tweezers triggers (23) are elastically connected to both outer sides of the handle bracket (22). A handle pull rod (24) is provided between the two inner sides of the handle bracket (22). A transmission pull rod (25) is connected to the upper end of the handle pull rod (24), and the lower end is connected to the two tweezers triggers (23). The transmission pull rod (25) is movably disposed within the handle sleeve (21). The transmission rod (25) is connected to the fixing member (15); the two tweezer triggers (23) are connected to the handle bracket (22) through two trigger springs (26); the inner sides of the two tweezer triggers (23) are connected to the handle rod (24) through two trigger rods (27); when the two tweezer triggers (23) are pressed, the two trigger rods (27) can drive the handle rod (24) to move, and the handle rod (24) drives the transmission rod (25) to move backward; when the two tweezer triggers (23) are released, the trigger rods (27) automatically reset and drive the handle rod (24) to move, and the handle rod (24) drives the transmission rod (25) to move forward; The transducer assembly (3) has its front end inserted into the handle sleeve (21) from the rear and provides ultrasonic vibration to the blade (11), the end of which is fixedly connected to the front end of the transducer assembly (3).

2. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The fixing member (15) includes a mounting part (151), a first abutment part (152) located on the front side of the mounting part (151), and a second abutment part (153) located on the rear side of the mounting part (151). The mounting part (151) is hollow in the middle so that the inner sleeve (12) can pass through it. The upper end of the transmission rod (25) is a snap-fit ​​part (251). The snap-fit ​​part (251) is installed on the mounting part (151) and snapped between the first abutment part (152) and the second abutment part (153). The snap-fit ​​part (251) is used to pull the fixing member (15) to move back and forth.

3. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The handle bracket (22) includes a left side plate and a right side plate that are fixed to the outside of the handle sleeve (21) and spliced ​​together. The left side plate and the right side plate are both L-shaped. The handle lever (24) is also L-shaped, including a vertical rod (241) and a horizontal rod (242). The upper end of the vertical rod (241) is connected to the transmission lever (25). The horizontal rod (242) is located between the left side plate and the right side plate. Horizontal plates (28) are fixed above and below the horizontal rod (242). A first pin (271) is fixed between the two horizontal plates (28). The trigger lever (27) is long and rod-shaped. One end of each trigger lever (27) is rotatably connected to the first pin (271). The other end of each trigger lever (27) is connected to the two tweezer triggers (23) through two second pins (272).

4. The forceps-type ultrasonic scalpel according to claim 3, characterized in that, The "L"-shaped interior angle of the handle bracket (22) is greater than 90°, and the "L"-shaped interior angle of the handle lever (24) is greater than 90°.

5. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The extension direction of the operating handle of the handle bracket (22) is set at an angle to the axial direction of the tool bar (11), and the angle is 5 degrees to 10 degrees.

6. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The lower part of the transmission rod (25) is provided with a longitudinal channel (252), and the upper end of the handle rod (24) can move up and down in the longitudinal channel (252); the upper end of the handle rod (24) is provided with an elongated hole (243) extending in the vertical direction, and the two side walls of the longitudinal channel (252) of the transmission rod (25) are provided with first through holes, and the first connecting post (253) passes through and connects the first through hole and the elongated hole (243); the handle sleeve (21) includes a left sleeve and a right sleeve spliced ​​together, and the inner walls of the left sleeve and the right sleeve are both recessed with a transmission track (211) extending in the front and back direction, and the two ends of the first connecting post (253) can move back and forth along the transmission track (211); the two sides of the transmission rod (25) are also provided with positioning posts (254), and the positioning posts (254) can move back and forth along the transmission track (211).

7. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The tool holder assembly (1) also includes: A fixed knob (18) is tubular and threaded to the front end of the handle sleeve (21). The inner wall of the fixed knob (18) is engaged with the rotating dial (16). The rotating dial (16) has a first fixing rib (161) and a second fixing rib (162) protruding outward from the tube body. The inner wall of the handle sleeve (21) has a first groove, and the first fixing rib (161) is engaged in the first groove. The interior of the fixing knob (18) has a second groove. When the fixing knob (18) is tightened with the front end of the handle sleeve (21), the second fixing rib (162) is engaged in the second groove.

8. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The inner sleeve (12) has a first mounting hole at its front end and a protruding post at its end. The protruding post is engaged with the first mounting hole. The outer sleeve (13) has a second mounting hole at its front end and a second through hole at its end. The second mounting hole and the second through hole are connected by a third connecting post inserted therein. When the inner sleeve (12) moves back and forth, it can drive the clamping arm (14) to rotate relative to the cutter head (111) of the cutter bar (11).

9. The forceps-type ultrasonic scalpel according to claim 1, characterized in that, The outer diameter of the cutter bar (11) is less than or equal to 4 mm, the diameter of the cutter head (111) is less than 2 mm, and the length of the cutter bar (11) is 10 cm to 20 cm.

10. The forceps-type ultrasonic scalpel according to any one of claims 1-9, characterized in that, The transducer assembly (3) includes a connector, multiple piezoelectric ceramics, a housing, and a cable (31). The front end of the connector is threaded to the end of the cutter bar (11). The piezoelectric ceramics have a third through hole in the middle, and the multiple piezoelectric ceramics are sleeved and installed on the connector through the third through hole. The cable (31) is extended from the end of the connector. The housing is wrapped around the connector, the piezoelectric ceramics, and part of the cable (31).

11. An ultrasonic surgical system, comprising an ultrasonic energy platform main unit (100) and a control switch (200), characterized in that, It also includes a forceps-type ultrasonic scalpel as described in any one of claims 1-10, wherein the ultrasonic energy platform host (100) is connected to the transducer assembly (3), the control switch (200) is connected to the ultrasonic energy platform host (100), and the control switch (200) is used to control the energy transmission of the ultrasonic energy platform host (100).

12. The ultrasonic surgical system according to claim 11, characterized in that, The control switch (200) is a foot switch.

Images