Ultrasonic scalpel capable of being bent actively

Abstract

The invention discloses an ultrasonic scalpel capable of being bent actively. The ultrasonic scalpel comprises a handle, an outer tube, a first bendable section, a traction device and a scalpel rod. A transducer is arranged in the handle; the outer tube is arranged at the front end of the handle; the rear end of the first bendable section is connected to the front end of the outer pipe, and a tool apron is arranged at the front end of the first bendable section. The traction device is used for controlling the first bendable section to bend; the cutter bar is arranged in the outer tube; the rear end of the cutter bar is connected with the transducer; a second bendable section; the second bendable section is arranged in the first bendable section; one end of the second bendable section is connected to the front end of the cutter bar, and the other end of the second bendable section is provided with a cutter head. Through cooperation of the traction device, the first bendable section, the second bendable section and other components, accurate control over the bending angle and direction of the tail end of the scalpel rod is achieved, and therefore the scalpel can go deep into a complex anatomical area, and the surgical operation range is greatly expanded.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically to an ultrasonic scalpel that can be actively bent. Background Technology

[0002] Ultrasonic scalpels convert high-frequency electrical energy into mechanical vibrations, causing the scalpel head to vibrate rapidly at high frequencies, thereby achieving tissue cutting, coagulation, and hemostasis. Ultrasonic scalpels are the most frequently used and commonly used energy surgical instruments in minimally invasive surgeries such as laparoscopy and thoracoscopic surgery, widely applied in various surgical procedures due to their high efficiency, minimal thermal damage, and low smoke emissions. However, existing ultrasonic scalpel products typically have straight or fixed-angle curved scalpel handles. When dealing with surgeries in complex anatomical locations (such as the renal hilum, prostate, hepatic hilum, splenic hilum, and deep pelvic cavity), the surgical operating space is often limited by the fixed scalpel angle, leading to insufficient surgical field exposure, blind spots causing difficult resection, and tumor residue. Furthermore, existing products force surgeons to frequently change instruments at different angles or adjust surgical approaches, not only prolonging operation time and increasing surgical risks but also exacerbating surgical trauma for the patient. Summary of the Invention

[0003] In view of this, the present invention provides an actively bendable ultrasonic scalpel, the purpose of which is to solve the problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An actively bendable ultrasonic surgical scalpel, comprising: Handle; the handle is equipped with a transducer; Outer tube; the outer tube is disposed at the front end of the handle; The first bendable section; the rear end of the first bendable section is connected to the front end of the outer tube, and the front end of the first bendable section is provided with a knife holder; A traction device; the traction device is disposed inside the handle and is used to control the bending of the first bendable section; A cutter bar; the cutter bar is disposed inside the outer tube; the rear end of the cutter bar is connected to the transducer; The second flexible section is disposed inside the first flexible section; one end of the second flexible section is connected to the front end of the tool holder, and the other end of the second flexible section is provided with a cutting head; the cutting head is slidably disposed inside the tool holder and extends to the outside of the tool holder.

[0005] Preferably, the first bendable segment includes multiple joint structures; the multiple joint structures are sequentially hinged together, so that the first bendable segment can be bent in a first plane; the two outermost joint structures are respectively hinged to the tool holder and the outer tube.

[0006] Preferably, the joint structure includes two first joint units and a second joint unit; the first joint unit and the second joint unit are hinged together, so that the first bendable segment can be bent in a second plane; the first plane is perpendicular to the second plane.

[0007] Preferably, the second bendable segment includes a plurality of third joint units; the third joint units are hinged together in sequence; the two outermost third joint units are respectively hinged to the cutter head and the cutter bar; adjacent third joint units, the cutter head and the corresponding third joint unit, and the cutter bar and the corresponding third joint unit are connected by ball joints.

[0008] Preferably, the traction device includes two pairs of traction ropes; the two pairs of traction ropes are arranged vertically; a housing is sleeved on the outer side of the outer tube; the housing is located inside the handle; a winding mechanism is provided inside the housing; the number of winding mechanisms is the same as the number of traction ropes, and they are arranged in a one-to-one correspondence; the front end of the traction rope is fixedly connected to the rear end of the blade holder, and the rear end of the traction rope is connected to the drive end of the winding mechanism.

[0009] Preferably, the winding mechanism includes a motor, a transmission assembly, and a winding wheel; the winding wheel is rotatably connected to the inside of the housing via a rotating shaft; the motor is fixedly connected to the inside of the housing; the winding wheel is driven by the motor via the transmission assembly; and the rear end of the traction rope is wound around the winding wheel.

[0010] Preferably, the transmission assembly includes a driving gear and a driven gear; the driving gear is disposed at the output end of the motor; the driven gear is disposed on the rotating shaft; and the driving gear meshes with the driven gear.

[0011] Preferably, the outer surface of the outer tube is provided with a plurality of guide components; the number of guide components is the same as that of the traction rope, and they are arranged in a one-to-one correspondence; each guide component includes two guide wheels and two guide brackets; the two guide brackets are symmetrically arranged on both sides of the traction rope; each guide bracket is rotatably connected to a guide wheel; the traction rope is located between the two guide wheels.

[0012] Preferably, a flexible corrugated protective sleeve is fitted on the outer side of the first bendable section; the two ends of the corrugated protective sleeve are respectively fixedly connected to the tool holder and the outer tube.

[0013] Preferably, the first flexible section has a flexible inner sleeve inside; the inner sleeve is fitted onto the outside of the second flexible section; the two ends of the inner sleeve are respectively fixedly connected to the tool holder and the outer tube.

[0014] The present invention achieves the following technical effects compared to the prior art: 1) This invention achieves precise control of the bending angle and direction of the end of the scalpel by using a traction device, a first bendable section, a second bendable section, and other components. This allows the scalpel to penetrate into complex anatomical areas, greatly expanding the scope of surgical operations.

[0015] 2) This invention can be used in conventional laparoscopic surgery and robot-assisted surgery, and has great advantages in single-port laparoscopic and single-port robot-assisted surgery. Currently, there is no actively bending ultrasonic scalpel instrument in the world, which is a groundbreaking advancement in surgical equipment. Attached Figure Description

[0016] Figure 1 This is a front view of an actively bendable ultrasonic surgical scalpel according to the present invention; Figure 2 This is a cross-sectional view of an actively bendable ultrasonic surgical scalpel according to the present invention. Figure 3 This is a schematic diagram of the first flexible section; Figure 4 This is a cross-sectional view of the first flexible segment. Figure 5 This is a schematic diagram of the inside of the handle; Figure 6 This is a schematic diagram of the traction device; In the diagram: 1. Handle; 2. Transducer; 3. Outer tube; 4. First flexible section; 401. Joint structure; 4011. First joint unit; 4012. Second joint unit; 5. Tool holder; 6. Traction device; 601. Traction rope; 602. Housing; 603. Motor; 604. Winding reel; 605. Shaft; 606. Driving gear; 607. Driven gear; 7. Tool holder; 8. Second flexible section; 801. Third joint unit; 9. Tool head; 10. Guide wheel; 11. Guide bracket; 12. Corrugated protective sleeve; 13. Inner liner; 14. Clamping clamp. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example

[0019] Reference Figure 1-6 As shown, this invention discloses an actively bendable ultrasonic surgical scalpel, comprising: Handle 1; Transducer 2 is installed inside handle 1; Outer tube 3; outer tube 3 is located at the front end of handle 1; The first bendable section 4; the rear end of the first bendable section 4 is connected to the front end of the outer tube 3, and the front end of the first bendable section 4 is provided with a knife holder 5. Traction device 6; The traction device 6 is located inside the handle 1 and is used to control the bending of the first bendable section 4. The cutter bar 7 is located inside the outer tube 3; the rear end of the cutter bar 7 is connected to the amplitude transformer of the transducer 2. The second bendable section 8 is disposed inside the first bendable section 4; one end of the second bendable section 8 is connected to the front end of the tool holder 7, and the other end of the second bendable section 8 is provided with a cutting head 9; the cutting head 9 is slidably disposed inside the tool holder 5 and extends to the outside of the tool holder 5.

[0020] In use, the bending angle and direction of the first bendable section 4 are controlled by the traction device. The first bendable section 4 drives the cutter holder 5 and the cutter head 9 to bend to a suitable angle and direction. During this process, the second bending section 8 bends synchronously with the first bendable section 4.

[0021] The above-mentioned technical solution, through the cooperation of components such as the traction device, the first flexible section, and the second flexible section, achieves precise control of the bending angle and direction of the end of the scalpel, thereby enabling the scalpel to penetrate into complex anatomical areas and greatly expanding the scope of surgical operations.

[0022] In this embodiment, the first bendable segment 4 includes a plurality of joint structures 401; the plurality of joint structures 401 are hinged together in sequence, so that the first bendable segment 4 can be bent in a first plane; the two outermost joint structures 401 are respectively hinged to the tool holder 5 and the outer tube 3.

[0023] In this embodiment, the joint structure 401 includes two first joint units 4011 and a second joint unit 4012; the first joint unit 4011 and the second joint unit 4012 are hinged together, so that the first bendable segment 4 can be bent in the second plane; the first plane is perpendicular to the second plane.

[0024] In this embodiment, the second bendable segment 8 includes a plurality of third joint units 801; the third joint units 801 are hinged together in sequence; the two outermost third joint units 801 are respectively hinged to the cutter head 9 and the cutter bar 7; adjacent third joint units 801, the cutter head 9 and the corresponding third joint unit 801, and the cutter bar 7 and the corresponding third joint unit 801 are connected by ball joints.

[0025] In this embodiment, the traction device 6 includes two pairs of traction ropes 601; the two pairs of traction ropes 601 are arranged vertically; the two pairs of traction ropes 601 are symmetrically threaded through the outer tube 3 and the first bendable section 4; a housing 602 is sleeved on the outer side of the outer tube 3; the housing 602 is located inside the handle 1; a winding mechanism is provided inside the housing 602; the number of winding mechanisms is the same as that of the traction ropes 601, and they are arranged in a one-to-one correspondence; the front end of the traction rope 601 is fixedly connected to the rear end of the cutter holder 5, and the rear end of the traction rope 601 is connected to the drive end of the winding mechanism; in use, the winding mechanism controls the tightening or loosening of the traction ropes 601, and actively controls the bending angle and direction of the first bendable section 4.

[0026] In this embodiment, the winding mechanism includes a motor 603, a transmission assembly, and a winding wheel 604. The winding wheel 604 is rotatably connected to the inside of the housing 602 via a rotating shaft 605. The motor 603 is fixedly connected to the inside of the housing 602. The winding wheel 604 is connected to the motor 603 via the transmission assembly. The rear end of the traction rope 601 is wound around the winding wheel 604. In use, the motor 603 drives the winding wheel 604 to rotate forward and backward via the transmission assembly, thereby controlling the tightening or loosening of the traction rope 601.

[0027] In this embodiment, the transmission assembly includes a driving gear 606 and a driven gear 607; the driving gear 606 is disposed at the output end of the motor 603; the driven gear 607 is disposed on the rotating shaft 605; the driving gear 606 and the driven gear 607 mesh with each other.

[0028] In this embodiment, multiple guide components are provided on the outer surface of the outer tube 3; the number of guide components is the same as that of the traction rope 601, and they are arranged in a one-to-one correspondence; the guide components include two guide wheels 10 and two guide brackets 11; the two guide brackets 11 are symmetrically arranged on both sides of the traction rope 601; each guide bracket 11 is rotatably connected to a guide wheel 10; the traction rope 601 is located between the two guide wheels 10; the guide components guide the traction rope 601.

[0029] In this embodiment, a flexible corrugated protective sleeve 12 is provided on the outer side of the first bendable section 4; the two ends of the corrugated protective sleeve 12 are fixedly connected to the knife holder 5 and the outer tube 3 respectively; by setting the corrugated protective sleeve, the first bendable section can be sealed and protected.

[0030] In this embodiment, the first bendable section 4 is provided with a flexible inner sleeve 13; the inner sleeve 13 is sleeved on the outside of the second bendable section 8; the two ends of the inner sleeve 13 are respectively fixedly connected to the knife holder 5 and the outer tube 3.

[0031] In this embodiment, the inner liner 13 is made of medical polyurethane or medical silicone rubber.

[0032] In this embodiment, the front end of the tool holder 5 is provided with a clamp 14.

[0033] In this embodiment, the corrugated protective sleeve 12 is made of medical-grade polyurethane or medical-grade silicone rubber.

[0034] In some other embodiments, the clamp 14 is hinged to the tool holder 5.

[0035] In some other embodiments, the handle 1 is provided with a control panel; the handle is provided with a controller; the bending angle and direction are controlled by the control panel and the controller.

[0036] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An actively bendable ultrasonic surgical scalpel, characterized in that, include: Handle (1); a transducer (2) is provided inside the handle (1); Outer tube (3); the outer tube (3) is disposed at the front end of the handle (1); The first bendable section (4) is connected to the front end of the outer tube (3) at its rear end, and the front end of the first bendable section (4) is provided with a knife holder (5). Traction device (6); the traction device (6) is used to control the bending of the first bendable section (4); The cutter bar (7) is disposed inside the outer tube (3); the rear end of the cutter bar (7) is connected to the transducer (2); The second bendable section (8) is located inside the first bendable section (4); one end of the second bendable section (8) is connected to the front end of the tool bar (7), and the other end of the second bendable section (8) is provided with a cutting head (9); the cutting head (9) is slidably located inside the tool holder (5) and extends to the outside of the tool holder (5).

2. The actively bendable ultrasonic scalpel according to claim 1, characterized in that, The first bendable segment (4) includes multiple joint structures (401); the multiple joint structures (401) are hinged together in sequence so that the first bendable segment (4) can be bent in a first plane; the two outermost joint structures (401) are respectively hinged to the knife holder (5) and the outer tube (3).

3. The actively bendable ultrasonic scalpel according to claim 2, characterized in that, The joint structure (401) includes two first joint units (4011) and a second joint unit (4012); the first joint unit (4011) and the second joint unit (4012) are hinged together, so that the first bendable segment (4) can be bent in a second plane; the first plane is perpendicular to the second plane.

4. The actively bendable ultrasonic scalpel according to claim 1, characterized in that, The second flexible segment (8) includes a plurality of third joint units (801); the third joint units (801) are hinged together in sequence; the two outermost third joint units (801) are respectively hinged to the cutter head (9) and the cutter bar (7); adjacent third joint units (801), the cutter head (9) and the corresponding third joint unit (801), and the cutter bar (7) and the corresponding third joint unit (801) are connected by ball joints.

5. The actively bendable ultrasonic scalpel according to claim 1, characterized in that, The traction device (6) includes two pairs of traction ropes (601); the two pairs of traction ropes (601) are arranged vertically; a housing (602) is sleeved on the outside of the outer tube (3); the housing (602) is located inside the handle (1); a winding mechanism is provided inside the housing (602); the number of winding mechanisms is the same as that of the traction ropes (601), and they are arranged in a one-to-one correspondence; the front end of the traction rope (601) is fixedly connected to the rear end of the knife holder (5), and the rear end of the traction rope (601) is connected to the drive end of the winding mechanism.

6. The actively bendable ultrasonic scalpel according to claim 5, characterized in that, The winding mechanism includes a motor (603), a transmission assembly, and a winding wheel (604); the winding wheel (604) is rotatably connected to the inside of the housing (602) via a rotating shaft (605); the motor (603) is fixedly connected to the inside of the housing (602); the winding wheel (604) is driven by the motor (603) via the transmission assembly; the rear end of the traction rope (601) is wound around the winding wheel (604).

7. The actively bendable ultrasonic scalpel according to claim 6, characterized in that, The transmission assembly includes a drive gear (606) and a driven gear (607); the drive gear (606) is located at the output end of the motor (603); the driven gear (607) is located on the rotating shaft (605); the drive gear (606) meshes with the driven gear (607).

8. The actively bendable ultrasonic scalpel according to claim 7, characterized in that, The outer surface of the outer tube (3) is provided with a plurality of guide components; the number of guide components is the same as that of the traction rope (601), and they are arranged in a one-to-one correspondence; the guide components include two guide wheels (10) and two guide brackets (11); the two guide brackets (11) are symmetrically arranged on both sides of the traction rope (601); each guide bracket (11) is rotatably connected to a guide wheel (10); the traction rope (601) is located between the two guide wheels (10).

9. The actively bendable ultrasonic scalpel according to claim 1, characterized in that, The outer side of the first bendable section (4) is fitted with a flexible corrugated protective sleeve (12); the two ends of the corrugated protective sleeve (12) are fixedly connected to the knife holder (5) and the outer tube (3), respectively.

10. The actively bendable ultrasonic scalpel according to claim 1, characterized in that, The first flexible section (4) is provided with a flexible inner sleeve (13); the inner sleeve (13) is fitted on the outside of the second flexible section (8); the two ends of the inner sleeve (13) are fixedly connected to the knife holder (5) and the outer tube (3) respectively.

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