Integrated waterway working tip and ultrasonic osteotome with same

Abstract

The utility model discloses provide a kind of working tip of integrated waterway and ultrasonic bone cutter with it, including shank, one end of the shank is used to connect the vibration end of ultrasonic bone cutter, and the other end is connected and provided with working head;The inside of the shank is opened with liquid outlet passage along the extension direction of handle body, and through groove is opened with the circumferential wall surface of the shank, the through direction of the through groove is crossed with the extension direction of the liquid outlet passage, the through groove is communicated with the outside with the liquid outlet passage, the liquid in the liquid outlet passage is flowed out and directed to the area of the working head by the through groove. Waterway can be integrated on working tip, so that water solution can be precisely applied in working area, and sufficient cooling, lubrication and increased surgical field of view can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of ultrasonic instruments, and specifically relates to a working tip with an integrated water channel and an ultrasonic bone scalpel having the same. Background Technology

[0002] An ultrasonic bone scalpel is a medical device that uses high-frequency ultrasonic vibrations to cut and grind bone tissue. During surgery, it generates a significant amount of heat, requiring continuous irrigation with an aqueous solution (such as saline) to cool, lubricate, and irrigate the surgical field. In existing technologies, the irrigation fluid is typically delivered through external tubing separate from the working tip, with the outlet located to the side or handle of the tip. This prevents the fluid from precisely reaching the actual area where the working tip contacts the bone tissue. This structure has the following inherent drawbacks: first, low cooling efficiency and a high risk of heat buildup at the tip, potentially causing thermal damage to surrounding tissues; second, the surgical field is easily obscured by bone fragments and blood, affecting operational accuracy; and finally, the external tubing may interfere with the surgeon's vision and operational flexibility. Therefore, a working tip with an integrated water system is needed. Utility Model Content

[0003] To address the aforementioned problems, this invention provides an integrated water channel working tip and an ultrasonic bone scalpel incorporating the same. The water channel is integrated into the working tip, enabling the aqueous solution to be precisely applied to the working area for adequate cooling, lubrication, and increased surgical field of view.

[0004] The technical solution of this utility model is as follows:

[0005] Firstly, a working tip for an integrated water circuit is provided, comprising:

[0006] A handle, one end of which is used to connect to the vibrating end of an ultrasonic bone scalpel, and the other end is connected to a working head;

[0007] The handle has a liquid outlet channel inside along the extension direction of the handle body, and a through groove is formed through the outer peripheral wall of the handle. The through groove intersects the extension direction of the liquid outlet channel. The through groove connects the liquid outlet channel to the outside. The liquid in the liquid outlet channel flows out through the through groove and points towards the area of ​​the working head.

[0008] In some embodiments, the through slot is formed at one end of the shank adjacent to the working head.

[0009] In some embodiments, the liquid outlet channel is located at one end of the through groove as the liquid outlet, and the working head is located on the liquid outlet path of the liquid outlet.

[0010] In some embodiments, the handle includes a first handle and a second handle, one end of the first handle is connected to the vibrating end, one end of the second handle is connected to the working head, and the opposite ends of the first handle and the second handle are detachably connected.

[0011] In some embodiments, the liquid outlet channel includes a first channel and a second channel that are connected. The first channel is opened through the inside of the first rod handle, and the second channel is opened through the inside of the second rod handle. The second channel is connected to the through groove. When the first rod handle and the second rod handle are connected, the first channel and the second channel are connected.

[0012] In some embodiments, the end of the first handle corresponding to the second handle includes a male connector, and the end of the second handle corresponding to the first handle includes a female connector, wherein the female connector is matched with the male connector.

[0013] In some embodiments, the male connector and the female connector are connected by a threaded structure or a snap-fit ​​structure.

[0014] In some embodiments, the working head is any one of a grinding head, a sharp needle, or a cutting edge.

[0015] In some embodiments, the working head and the handle are detachably configured.

[0016] In a second aspect, an ultrasonic bone scalpel is provided, comprising a working tip as described in any one of the first aspects.

[0017] Beneficial effects: This solution achieves precise targeted flushing, with the liquid directly delivered to the interface between the working head and bone tissue, instantly removing heat generated during grinding and significantly improving cooling efficiency, fundamentally reducing the risk of tissue thermal necrosis. Secondly, the flowing liquid immediately washes away tiny bone fragments and blood generated during surgery, maintaining a clear surgical field and significantly improving surgical safety and precision. Thirdly, the continuous liquid film forms effective lubrication on the working head surface, reducing tissue adhesion and wear on the working head itself. Finally, since all fluid paths are integrated inside the handle, external tubing is completely eliminated, providing the surgeon with an unobstructed operating field and more flexible operating space, especially beneficial for delicate operations in confined areas. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the working tip of this utility model;

[0019] Figure 2 This is a half-sectional schematic diagram of the overall structure of the working tip of this utility model;

[0020] Figure 3This is an exploded view of the working tip of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the ultrasonic bone scalpel of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Working tip; 2. Rod handle; 3. Working head; 4. Liquid outlet channel; 5. Through groove; 6. Liquid outlet; 11. First rod handle; 12. Second rod handle; 41. First channel; 42. Second channel; 7. Connecting male connector; 8. Connecting female connector; 100. Main unit; 101. Amplifier rod; 102. Liquid inlet. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] An ultrasonic bone scalpel is a medical device that uses high-frequency ultrasonic vibrations to cut and grind bone tissue. During surgery, it generates a significant amount of heat, requiring continuous irrigation with an aqueous solution (such as saline or clean water) to cool, lubricate, and irrigate the surgical field. In existing technologies, the irrigation fluid is typically delivered through external tubing separate from the working tip, with the outlet located to the side of the tip or on the handle. This prevents the fluid from precisely reaching the actual operating area where the working tip contacts the bone tissue. This structure has the following inherent drawbacks: first, low cooling efficiency and a high risk of heat buildup at the tip, potentially causing thermal damage to surrounding tissues; second, the surgical field is easily obscured by bone fragments and blood, affecting operational accuracy; and finally, the external tubing may interfere with the surgeon's vision and operational flexibility. Therefore, a working tip with an integrated water system is needed.

[0026] Firstly, such as Figures 1 to 3 As shown, a working tip 1 of an integrated water circuit is provided, comprising:

[0027] The handle 2 has one end for connecting to the vibrating end of the ultrasonic bone scalpel and the other end for connecting to the working head 3.

[0028] The handle 2 has a liquid outlet channel 4 extending along the handle body, and a through groove 5 extending through the outer peripheral wall of the handle 2. The through groove 5 intersects the extending direction of the liquid outlet channel 4, connecting the liquid outlet channel 4 to the outside. Liquid in the liquid outlet channel 4 flows out through the through groove 5 and points towards the area of ​​the working head 3. Part of the liquid outlet channel 4 is located on the through path of the through groove 5, allowing the aqueous solution to directly act on the area where the working head 3 is located, directly rinsing the working area of ​​the working head, and providing good cooling and lubrication effects.

[0029] In this design, the handle 2 contains a liquid outlet channel 4, and a lateral opening intersecting the liquid outlet channel 4 and penetrating the outer wall of the handle changes the direction of the liquid flow, allowing the aqueous solution to act concentratedly on the area where the working head 3 is located. The specific workflow is as follows: the rinsing fluid is pumped out from the ultrasonic bone scalpel main unit, transmitted through the handle to the inlet at the end of the handle of the working tip 1, and enters and fills the entire liquid outlet channel 4. When the liquid flow is transmitted forward along the liquid outlet channel to the area where it intersects with the through groove, the through groove provides a path to the external environment, causing the aqueous solution to impact the working head 3 and cover the tip working area of ​​the working head 3. The shape of the through groove 5 is not limited, but since the working tip 1 is a slender rod, the through groove is preferably a rectangular groove structure, which can ensure the strength of the working tip 1 and also provide a larger liquid outlet.

[0030] This solution achieves precise targeted flushing, with the liquid directly delivered to the interface between the working head 3 and the bone tissue, instantly carrying away the heat generated during grinding and significantly improving cooling efficiency, fundamentally reducing the risk of tissue thermal necrosis. Secondly, the flowing liquid immediately washes away tiny bone fragments and blood generated during surgery, maintaining a clear surgical field and significantly improving the safety and precision of the procedure. Furthermore, the continuous liquid film forms effective lubrication on the surface of the working head 3, reducing tissue adhesion and wear on the working head itself. Finally, since all fluid pathways are integrated inside the handle 2, external tubing is completely eliminated, providing the surgeon with an unobstructed operating field and more flexible operating space, especially beneficial for delicate operations in confined areas.

[0031] In some embodiments, the through groove 5 is formed at one end of the handle 2 adjacent to the working head 3.

[0032] The through-channel 5 is closer to the working head 3, meaning the liquid outlet area is closer to the working head. The aqueous solution can directly act on all sides of the working head 3, making its cooling of the working head 3 more rapid and efficient. This is especially important for preventing overheating of the tip during continuous operation.

[0033] In some embodiments, one end of the liquid outlet channel 4 located within the through groove 5 is the liquid outlet 6, and the working head 3 is located on the liquid outlet path of the liquid outlet 6.

[0034] The outflowing aqueous solution directly impacts the working head 3, rather than the bone tissue, which avoids patient discomfort and prevents operational interference with the wound.

[0035] In some implementations, such as Figure 3 As shown, the handle 2 includes a first handle 11 and a second handle 12. One end of the first handle 11 is connected to the vibrating end, and one end of the second handle 12 is connected to the working head 3. The opposite ends of the first handle 11 and the second handle 12 are detachably connected.

[0036] The integrated rod handle is divided into two parts: a first rod handle 11, which connects to the main unit and transmits vibration, and a second rod handle 12, which is responsible for installing the working head and achieving end flushing. On the one hand, since the working tip 1 is usually a slender and curved rod structure, the split structure makes it easier to drill the liquid outlet channel 4 in sections; on the other hand, different working heads can be replaced by changing different second rod handles. Overall, it is more convenient to use.

[0037] In some embodiments, the liquid outlet channel 4 includes a first channel 41 and a second channel 42 that are connected. The first channel 41 is opened through the inside of the first rod handle 11, and the second channel 42 is opened through the inside of the second rod handle 12. The second channel 42 is connected to the through groove 5. When the first rod handle 11 and the second rod handle 12 are connected, the first channel 41 and the second channel 42 are connected.

[0038] The first channel 41 and the second channel 42 are joined at the connection interface to reconstruct a complete liquid outlet channel 4. A sealing gasket can also be added at the connection between the first rod handle 11 and the second rod handle 12 to ensure the connection is sealed and prevent the aqueous solution in the liquid outlet channel from seeping in the middle section.

[0039] In some embodiments, the end of the first handle 11 corresponding to the second handle 12 includes a male connector 7, and the end of the second handle 12 corresponding to the first handle 11 includes a female connector 8, wherein the female connector 8 is matched with the male connector 7. More specifically, the male connector 7 and the female connector 8 are connected by a threaded structure or a snap-fit ​​structure, which is simple in structure and facilitates disassembly and assembly.

[0040] In some embodiments, the working head 3 is any one of a grinding head, a sharp needle, or a cutting edge, and the integrated water channel is suitable for various working tips, making it versatile.

[0041] In some embodiments, the working head 3 and the handle 2 are detachably configured. By separately disassembling the working head 3 and the handle 2, the working head can be replaced more easily to meet different operational needs. For example, the working head 3 is detachably connected to the second handle 12 via a screw, and a threaded hole is correspondingly provided at the front end of the second handle 12.

[0042] Secondly, such as Figure 4 As shown, an ultrasonic bone scalpel is provided, including a working tip as described in any one of the first aspects. The ultrasonic bone scalpel includes a main unit 100, which includes an amplitude transformer 101. Both ends of the amplitude transformer 101 extend outside the main unit. The working tip 1 is connected to one end of the amplitude transformer 101. The amplitude transformer 101 has a hollow rod structure and contains a liquid supply channel. The end of the liquid supply channel away from the working tip 1 includes a liquid inlet 102. The liquid supply channel is connected to the liquid outlet channel 4 in the working tip 1.

[0043] like Figures 1 to 3 As shown, this solution provides a specific implementation of an integrated water circuit working tip, including a handle 2 and a working head 3. The handle 2 has an internal liquid outlet channel 4, and a through groove 5 is formed on the side wall of the handle 2 near the working head 3. This through groove 5 intersects with and communicates with the liquid outlet channel 4, ensuring that the liquid in the liquid outlet channel 4 must be sprayed outward through the through groove 5, with the spray direction directly facing the tip of the working head 3.

[0044] The rod handle 2 is composed of a first rod handle 11 and a second rod handle 12 connected by threads. The liquid outlet channel 4 is correspondingly divided into a first channel 41 and a second channel 42. A sealing ring (not shown) can be set at the connection to prevent leakage. A through groove 5 is opened at the end of the second rod handle 12 to communicate with the second channel 42.

[0045] The working head 3 can be selected as a burr head, a sharp needle, or a cutting blade, depending on the surgical needs. During use, the working tip 1 is connected to the ultrasonic bone scalpel handle via the end of the handle 2, and the fluid outlet channel 4 is connected to the fluid path within the main unit 100. After the device is started, ultrasonic vibrations are transmitted to the working head 3, while simultaneously, flushing fluid is continuously sprayed from the through-groove 5 into the working head 3 area through the fluid outlet channel 4, achieving cooling, lubrication, and flushing.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0047] The above steps are provided only to help understand the method, structure, and core ideas of this application. Those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A working tip for an integrated water circuit, characterized in that, include: The handle (2) has one end for connecting to the vibrating end of the ultrasonic bone scalpel and the other end for connecting to the working head (3). The handle (2) has a liquid outlet channel (4) inside along the extension direction of the handle body, and a through groove (5) is provided through the outer peripheral wall of the handle (2). The through direction of the through groove (5) intersects with the extension direction of the liquid outlet channel (4). The through groove (5) connects the liquid outlet channel (4) to the outside. The liquid in the liquid outlet channel (4) flows out through the through groove (5) and points to the area of ​​the working head (3).

2. The working tip of an integrated water circuit according to claim 1, characterized in that, The through groove (5) is opened at one end of the handle (2) near the working head (3).

3. The working tip of an integrated water circuit according to claim 1, characterized in that, The liquid outlet channel (4) is located at one end of the through groove (5) as the liquid outlet (6), and the working head (3) is located on the liquid outlet path of the liquid outlet (6).

4. The working tip of an integrated water circuit according to claim 1, characterized in that, The handle (2) includes a first handle (11) and a second handle (12). One end of the first handle (11) is connected to the vibrating end, and one end of the second handle (12) is connected to the working head (3). The opposite ends of the first handle (11) and the second handle (12) are detachably connected.

5. The working tip of an integrated water circuit according to claim 4, characterized in that, The liquid outlet channel (4) includes a first channel (41) and a second channel (42) that are connected. The first channel (41) is opened through the inside of the first rod handle (11), and the second channel (42) is opened through the inside of the second rod handle (12). The second channel (42) is connected to the through groove (5). When the first rod handle (11) and the second rod handle (12) are connected, the first channel (41) and the second channel (42) are connected.

6. The working tip of an integrated water circuit according to claim 4, characterized in that, The first handle (11) has a male connector (7) at one end corresponding to the second handle (12), and the second handle (12) has a female connector (8) at one end corresponding to the first handle (11). The female connector (8) is matched with the male connector (7).

7. The working tip of an integrated water circuit according to claim 6, characterized in that, The male connector (7) and the female connector (8) are connected by a threaded structure or a snap-fit ​​structure.

8. The working tip of an integrated water circuit according to claim 1, characterized in that, The working head (3) can be any one of a grinding head, a sharp needle, or a cutting edge.

9. The working tip of an integrated water circuit according to claim 1, characterized in that, The working head (3) and the handle (2) are detachably mounted.

10. An ultrasonic bone scalpel, characterized in that, Includes the working tip as described in any one of claims 1 to 9.

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