An integrated ultrasonic probe orthopedic surgical cutter

Abstract

The application relates to the technical field of medical equipment, in particular to a surgical knife for orthopedics integrated with an ultrasonic probe, which comprises a surgical knife body, an ultrasonic probe connected to the surgical knife body through a detachable assembly on the side wall of the surgical knife body, and the distance between the outer end side wall of the ultrasonic probe and the side wall of the surgical knife body is greater than the distance between the first connecting frame side wall and the side wall of the surgical knife body, so that the surgical knife body can be held parallel to the skin during use, the ultrasonic probe on the surgical knife body is in contact with the skin, a coupling agent is applied on the skin, and detection is carried out. The ultrasonic probe in the application can be connected with an external ultrasonic host through an internal cable or a wireless module, is used for real-time detection of the bone tissue boundary, blood vessel and nerve position before and after cutting or during cutting, and feeds back information to the doctor, so that the precision and safety of the operation are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an orthopedic surgical instrument with an integrated ultrasound probe. Background Technology

[0002] Patent CN216823596U discloses a scalpel with an ultrasonic probe. The scalpel includes a handle, a blade head that slides on the handle, a first driving member that slides on the handle to drive the blade head to slide, the first driving member being fastened to the blade head, an illumination element that rotates on one end of the blade head, and a second driving member that slides on the other end to drive the illumination element to rotate. An adjustable-angle ultrasonic probe is provided on the blade head, and the ultrasonic probe is rotatably connected to the blade head.

[0003] In the aforementioned prior art, when a scalpel is used for surgery, the second push block is pushed to slide, and the gear and rack mesh to drive the transmission, thereby controlling the rotation direction of the illumination component, which makes it easier for the doctor to clearly see the surrounding conditions of the surgical site. The angle between the ultrasound probe and the blade can be adjusted by activating the telescopic component. Moreover, when the scalpel cuts tissue, the tissue surface is often loose, resulting in poor cutting effect of the blade.

[0004] Therefore, an orthopedic surgical instrument integrating an ultrasound probe is proposed to solve the problems mentioned above. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: A surgical blade body is provided, with friction patterns on the blade body to enhance friction; a first cavity is hollowed out on the arm of the surgical blade body, and a first connecting frame is provided within the first cavity, the first connecting frame being rotatably connected to the arm of the surgical blade body; a first worm gear and a first worm wheel are rotatably connected to the inner sidewall of the first connecting frame, with the first worm gear meshing with the first worm wheel at its left and right ends respectively; a receiving plate is fixedly connected to each of the two sets of first worm wheels, and two sets of limiting plates are fixedly connected to the receiving plate; a torsion plate is rotatably connected to the receiving plate via a torsion spring, the bottom of the torsion plate being threadedly connected to the fixed end of the top of the telescopic rod; the movable end of the bottom of the telescopic rod is fixedly connected to the connecting frame, and a contact wheel is rotatably connected within the connecting frame; the torsion plate is driven in a figure-eight shape, and the contact wheel generates outward pulling force to both sides when pressure is applied, making the tissue area taut, and the taut tissue is easier to cut.

[0006] In one possible implementation, the scalpel body has a connection area that engages with the blade, allowing for quick disassembly or assembly of the blade via the connection area.

[0007] In one possible implementation, an ultrasound probe is connected to the side wall of the scalpel body via a detachable assembly.

[0008] In one possible implementation, a first one-way valve is provided on the top of the torsion plate, and a delivery pipe is laid inside the torsion plate.

[0009] In one possible implementation, the upper end of the delivery pipe is connected to the first one-way valve, the other end of the delivery pipe is connected to the first expansion bladder, and the first expansion bladder is located in the bottom area of ​​the torsion plate.

[0010] In one possible implementation, the first one-way valve, the delivery pipe, and the first expansion bladder are provided in two sets.

[0011] In one possible implementation, the scalpel body is provided with a second cavity, a second connecting frame is rotatably connected within the second cavity, and a worm gear is rotatably connected within the second connecting frame.

[0012] In one possible implementation, the worm wheel on the worm gear is fixedly connected to one end of the swing arm, and a second expansion bladder is fixedly connected to the bottom of the swing arm.

[0013] In one possible implementation, the second expansion bladder is connected to a second one-way valve, which is located at the top of the swing arm; In one possible implementation, the disassembly assembly includes an outer cylinder, which is threaded to the side wall of the scalpel body via a screw. An inner cylinder is movably connected inside the outer cylinder. A first connecting rod is rotatably connected to the side wall of the inner cylinder via a torsion spring. The other end of the first connecting rod is rotatably connected to a second connecting rod via a torsion spring. The other end of the second connecting rod is rotatably connected to an ultrasonic probe via a torsion spring.

[0014] Compared with the prior art, the present invention provides an orthopedic surgical instrument with an integrated ultrasound probe, which has the following beneficial effects: 1. In this invention, the first worm gear and the first worm wheel drive the torsion plate in a figure-eight shape. When pressure is applied, the contact wheel generates an outward pulling force on both sides, making the tissue area taut. The taut tissue is easier to cut. The contact wheel is covered with medical silicone or flexible material, which rolls and slides on the tissue surface, increasing adhesion and avoiding scratching normal tissue.

[0015] 2. The first expansion bladder in this invention becomes a full spherical shape after being inflated with gas / liquid, which can closely adhere to the surface of irregular tissues and provide a more uniform pressure distribution. It is especially suitable for fragile or easily damaged tissues. By adjusting the temperature of the injected gas or liquid, the expansion bladder can contact the tissue at a suitable temperature. Two sets of independent one-way valves, delivery tubes and expansion bladders can control the pressure and temperature on the left and right sides respectively, adapting to asymmetrical wounds or tissue conditions.

[0016] 3. In this invention, the second expansion bladder on the swing arm is inserted subcutaneously through the incision and then unfolds outward, which can stretch the skin and subcutaneous tissue to both sides without the need for additional retractors, saving surgical steps and allowing the stretching and cutting functions to be completed by the same instrument, reducing the need for changing instruments during the operation. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the outer cylinder structure of the present invention; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 5 This is a schematic diagram of the first connecting frame structure of the present invention; Figure 6 This is a schematic diagram of another embodiment of the torsion plate of the present invention; Figure 7 This is a schematic diagram of the second cavity structure of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the second cavity structure of the present invention. Figure 2 ;

[0018] In the diagram: 1. Surgical blade body; 2. Friction texture; 21. Ultrasonic probe; 3. Connecting area; 4. Blade; 5. First cavity; 6. First connecting frame; 7. First worm gear; 8. First worm wheel; 9. Support plate; 10. Limiting plate; 11. Torsion plate; 12. Telescopic rod; 13. Connecting frame; 14. Contact wheel; 211. Outer cylinder; 212. Inner cylinder; 213. First connecting rod; 214. Second connecting rod; 111. First one-way valve; 112. Delivery pipe; 113. First expansion bladder; 101. Second cavity; 102. Second connecting frame; 103. Worm gear; 104. Swing arm; 105. Second one-way valve; 106. Second expansion bladder. Detailed Implementation

[0019] 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.

[0020] Example 1: Please see Figure 1 - Figure 3In this embodiment, an orthopedic surgical instrument with an integrated ultrasound probe includes a surgical blade body 1. The surgical blade body 1 is provided with friction patterns 2 to improve friction. The friction patterns 2 can be diamond knurling, multiple parallel or intersecting grooves, or a rough layer formed by surface sandblasting to prevent slippage due to blood or tissue fluid during surgery. Specifically, the scalpel body 1 is provided with a connection area 3 that engages with the blade 4. The connection area 3 can be a T-shaped groove, a dovetail groove, or a groove with an elastic buckle. Matching it is a slot provided at the root of the blade 4. The blade 4 can be quickly disassembled or installed through the connection area 3. When installing the blade 4, the slot on the blade 4 is connected to the connection area 3 to fix the blade 4 on the connection area 3. Specifically, please refer to Figure 1 - Figure 4 An ultrasonic probe 21 is connected to the side wall of the scalpel body 1 via a detachable assembly. The distance between the outer side wall of the ultrasonic probe 21 and the side wall of the scalpel body 1 is greater than the distance between the side wall of the first connecting frame 6 and the side wall of the scalpel body 1. This allows the scalpel body 1 to be held parallel to the skin during use. The ultrasonic probe 21 on the scalpel body 1 is in contact with the skin, and a coupling agent is applied to the skin for detection. The ultrasound probe 21 can be connected to an external ultrasound host via an internal cable or wireless module to detect the boundaries of bone tissue, the location of blood vessels and nerves in real time before, during, or after cutting, and to feed the information back to the doctor to improve the accuracy and safety of the surgery. Please see Figure 1 and Figure 2 In this embodiment, an orthopedic surgical knife with an integrated ultrasound probe is provided. The disassembly assembly includes an outer cylinder 211, which is threaded to the side wall of the surgical knife body 1 via a lead screw. When the ultrasound probe 21 is not needed, it can be separated from the surgical knife body 1 by the lead screw on the outer cylinder 211 and the ultrasound probe 21 can be removed, which facilitates the disassembly and installation of the ultrasound probe 21. Specifically, an inner cylinder 212 is movably connected inside the outer cylinder 211, and a first connecting rod 213 is rotatably connected to the side wall of the inner cylinder 212 via a torsion spring; Specifically, the other end of the first link 213 is rotatably connected to the second link 214 via a torsion spring, and the other end of the second link 214 is rotatably connected to the ultrasonic probe 21 via a torsion spring. Specifically, during use, the scalpel body 1 contacts the wound, and the ultrasound probe 21 contacts the adjacent skin. When the scalpel body 1 makes an oblique cut, the inner cylinder 212 moves within the outer cylinder 211, keeping the ultrasound probe 21 in place and in contact with the skin. As the scalpel body 1 cuts downwards, it applies a thrust to push the first connecting rod 213 and the second connecting rod 214 outwards. The second connecting rod 214 then pushes the ultrasound probe 21 outwards, and the ultrasound probe 21 continues to contact and detect the human skin.

[0021] Example 2: Please see Figure 6 In this embodiment, an orthopedic surgical tool with an integrated ultrasound probe includes a torsion plate 11 with a first one-way valve 111 on the top, a delivery tube 112 laid inside the torsion plate 11, the upper end of the delivery tube 112 being connected to the first one-way valve 111, the other end of the delivery tube 112 being connected to a first expansion bladder 113, and the first expansion bladder 113 being located in the bottom area of ​​the torsion plate 11. Specifically, the first one-way valve 111, the delivery pipe 112, and the first expansion bladder 113 are provided in two sets; More specifically, the first inflatable bladder 113 is made of a biocompatible elastic material such as medical silicone rubber and is flat when not inflated; For example, the injected fluid enters the first expansion bladder 113 through the delivery tube 112, causing it to gradually expand from a flat shape to a full spherical shape. After expansion, the volume of the first expansion bladder 113 increases, allowing it to directly contact the surface of the tissue to be cut. The doctor can precisely control the amount of injected fluid, thereby adjusting the degree of expansion and contact pressure of the first expansion bladder 113. In use, after the two sets of torsion plates 11 are rotated and adjusted to the desired angle, they are connected to the first one-way valve 111 through an external gas or liquid delivery device. The first one-way valve 111 delivers gas to the first expansion bladder 113, causing the first expansion bladder 113 to expand. Then, the first expansion bladder 113 contacts the tissue being cut, replacing the contact wheel 14. The contact temperature between the first expansion bladder 113 and the tissue can be adjusted by regulating the temperature of the gas or liquid.

[0022] Example 3: Please see Figure 7 - Figure 8 In this embodiment, an orthopedic surgical instrument with an integrated ultrasound probe includes a surgical instrument body 1 with a second cavity 101, and a second connecting frame 102 rotatably connected inside the second cavity 101. Specifically, a worm gear 103 is rotatably connected inside the second connecting frame 102. The worm gear on the worm gear 103 is fixedly connected to one end of the swing arm 104. A second expansion bladder 106 is fixedly connected to the bottom of the swing arm 104. Specifically, the second expansion bladder 106 is connected to the second one-way valve 105, and the second one-way valve 105 is located at the top of the swing arm 104. Specifically, during use, the second expansion bladder 106 is pre-inflated with air or liquid to expand it. The worm gear 103 drives the two sets of swing arms 104 to rotate, and the two sets of swing arms 104 unfold outwards, so that the two sets of swing arms 104 are located at the left and right ends of the blade 4. When cutting subcutaneous tissue, the two sets of swing arms 104 are in a figure-eight position, and the two sets of swing arms 104 contact and spread with the side wall of the cut wound. Then, the scalpel body 1 is rotated downwards to drive the blade 4, and the blade 4 can cut the subcutaneous tissue area. When the blade 4 is cutting, the epidermis in the left and right end areas is squeezed outwards.

[0023] Example 4: Specifically, please refer to Figure 1 - Figure 4 The surgical blade body 1 has a hollowed-out first cavity 5, and a first connecting frame 6 is provided inside the first cavity 5. The first connecting frame 6 is rotatably connected to the surgical blade body 1. During use, the surgical blade body 1 and the first connecting frame 6 can be rotated to adjust the angle, so that the angle between the first connecting frame 6 and the surgical blade body 1 can be adjusted. During the operation, the doctor can manually adjust the angle between the first connecting frame 6 and the surgical blade body 1 as needed, and keep the angle unchanged after adjustment, so as to adapt to cutting operations of different depths or angles. Specifically, please refer to Figure 4 and Figure 5 The inner sidewall of the first connecting frame 6 is rotatably connected to the first worm 7 and the first worm wheel 8, and the first worm 7 is meshed with the first worm wheel 8 at its left and right ends respectively; Specifically, please refer to Figure 5 Each of the two sets of first worm gears 8 is fixedly connected to a receiving plate 9. Two sets of limiting plates 10 are fixedly connected to the receiving plate 9. A torsion plate 11 is rotatably connected to the receiving plate 9 via a torsion spring. The bottom of the torsion plate 11 is threadedly connected to the fixed end of the top of the telescopic rod 12. The moving end of the bottom of the telescopic rod 12 is fixedly connected to the connecting frame 13. A contact wheel 14 is rotatably connected inside the connecting frame 13. The outer surface of the contact wheel 14 is covered with medical silicone or flexible material to increase friction with tissues and avoid damage. Specifically, during use, the doctor holds the scalpel body 1 and pre-twists the first worm gear 7. The first worm gear 7 drives two sets of first worm wheels 8 to rotate. The two sets of first worm wheels 8, in turn, drive the connected receiving plate 9 and torsion plate 11 to rotate, so that the two sets of torsion plates 11 form a V-shape. Then, the contact wheel 14 below the torsion plate 11 contacts the surface of the tissue area to be cut. Then, the scalpel body 1 is twisted to rotate, causing the blade 4 to rotate downward and cut the tissue below. At the same time, the user applies pressure to the scalpel body 1, and the scalpel body 1 transmits the pressure to the torsion plate 11, so that the torsion plate 11 transmits the force to the contact wheel 14. The torsion plate 11 rotates slightly outward through the torsion spring and is restricted by the limiting plate 10 to not rotate. Then, the contact wheel 14 transmits the force to the tissue below, so that the left and right ends of the tissue are subjected to an outward pulling force, which can keep the tissue area to be cut in a taut state. Then, when the blade 4 moves, the contact wheel 14 can slide on the tissue surface.

[0024] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections. Any connection method that can achieve its beneficial effect can be implemented, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An orthopedic surgical instrument with an integrated ultrasound probe, comprising a surgical blade (1) having friction patterns (2) on the surgical blade (1) for increasing friction. Its features are: The scalpel body (1) has a hollowed-out first cavity (5) on its arm. The first cavity (5) has a first connecting frame (6) inside it. The first connecting frame (6) is rotatably connected to the scalpel body (1) arm. The inner wall of the first connecting frame (6) is rotatably connected to the first worm (7) and the first worm wheel (8), and the first worm (7) is meshed with the first worm wheel (8) at the left and right ends respectively. Two sets of first worm gears (8) are fixedly connected to a support plate (9), and two sets of limiting plates (10) are fixedly connected to the support plate (9). A torsion plate (11) is rotatably connected to the support plate (9) via a torsion spring. The bottom of the torsion plate (11) is threadedly connected to the fixed end of the top of the telescopic rod (12). The movable end at the bottom of the telescopic rod (12) is fixedly connected to the connecting frame (13), and a contact wheel (14) is rotatably connected inside the connecting frame (13). The drive torsion plate (11) is V-shaped, and the contact wheel (14) generates outward pulling force on both sides when pressure is applied, making the tissue area tight. Tight tissue is easier to cut.

2. The orthopedic surgical instrument with an integrated ultrasound probe according to claim 1, characterized in that: The scalpel body (1) is provided with a connection area (3) that engages with the blade (4), allowing for quick disassembly or assembly of the blade (4) through the connection area (3).

3. An orthopedic surgical instrument with an integrated ultrasound probe according to claim 1 or 2, characterized in that: An ultrasound probe (21) is connected to the side wall of the scalpel body (1) via a detachable assembly.

4. An orthopedic surgical instrument with an integrated ultrasound probe according to claim 1 or 2, characterized in that: The top of the torsion plate (11) is provided with a first one-way valve (111), and a conveying pipe (112) is laid inside the torsion plate (11).

5. The orthopedic surgical instrument with an integrated ultrasound probe according to claim 4, characterized in that: The upper end of the delivery pipe (112) is connected to the first one-way valve (111), and the other end of the delivery pipe (112) is connected to the first expansion bladder (113), and the first expansion bladder (113) is located in the bottom area of ​​the torsion plate (11).

6. The orthopedic surgical instrument with an integrated ultrasound probe according to claim 5, characterized in that: The first one-way valve (111), the delivery pipe (112), and the first expansion bladder (113) are provided in two sets.

7. The orthopedic surgical instrument with an integrated ultrasound probe according to claim 1, characterized in that: The scalpel body (1) is provided with a second cavity (101), a second connecting frame (102) is rotatably connected inside the second cavity (101), and a worm gear (103) is rotatably connected inside the second connecting frame (102).

8. The orthopedic surgical instrument with an integrated ultrasound probe according to claim 7, characterized in that: The worm wheel on the worm gear (103) is fixedly connected to one end of the swing arm (104), and a second expansion bladder (106) is fixedly connected to the bottom of the swing arm (104).

9. An orthopedic surgical instrument with an integrated ultrasound probe according to claim 8, characterized in that: The second expansion bladder (106) is connected to the second one-way valve (105), which is located on the top of the swing arm (104).

10. An orthopedic surgical instrument with an integrated ultrasound probe according to claim 3, characterized in that: The disassembly assembly includes an outer cylinder (211), which is threaded to the side wall of the scalpel body (1) via a screw. An inner cylinder (212) is movably connected inside the outer cylinder (211). A first connecting rod (213) is rotatably connected to the side wall of the inner cylinder (212) via a torsion spring. A second connecting rod (214) is rotatably connected to the other end of the first connecting rod (213) via a torsion spring. An ultrasound probe (21) is rotatably connected to the other end of the second connecting rod (214) via a torsion spring.

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