Ultrasonic knife suction device and ultrasonic knife

Abstract

The ultrasonic knife suction device comprises a step connector, a suction sleeve, an elastic sealing piece and a fastening component, the step connector is connected to an ultrasonic knife rod, one end of the suction sleeve is detachably connected with the step connector, the suction sleeve is arranged on the ultrasonic knife rod in a sleeving mode, and the elastic sealing piece is connected with the fastening component. The suction sleeve is used for being connected with an ultrasonic cutter bar to form a fluid channel for air circulation, the elastic sealing piece is located between the suction sleeve and the step connector, and the fastening part is connected to the step connector and the suction sleeve. The suction sleeve is connected to the ultrasonic cutter bar through the step connector, so that the suction sleeve and the ultrasonic cutter bar form the fluid channel for circulation of smoke, blood and body fluid, the suction device is simple in structure and convenient to disassemble and assemble, the production difficulty of the suction device can be reduced, the smoke, the blood, the body fluid and the like can be effectively collected and purified, and the service life of the suction device is prolonged. The definition of the visual field of a doctor during operation is ensured, and the working efficiency of an ultrasonic scalpel operation is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and more specifically, to an ultrasonic knife suction device and an ultrasonic knife. Background Art

[0002] An ultrasonic knife is a high-frequency electrosurgical device mainly used for operations such as cutting of biological tissues and vascular closure.

[0003] The ultrasonic knife outputs an electrical signal through a main unit, and the transducer converts electrical energy into mechanical energy, that is, an ultrasonic signal. These ultrasonic signals generate high-frequency vibrations, drive the tool head to work, and transmit energy to local tissues of the human body, thereby achieving the purpose of surgical treatment.

[0004] The amplitude of the ultrasonic knife head is very small, but the vibration frequency is extremely high, resulting in a very high instantaneous acceleration. This enables the soft tissue to be quickly cut during soft tissue cutting without damaging the surrounding tissues. However, when the ultrasonic knife is used, smoke is generated, which easily affects the operation of the doctor. If the smoke is not effectively cleared, it may cause harm to the patient due to the easy influence on the line of sight.

[0005] For example, the application No. 201520678388.0 discloses an additional suction tube, including a suction tube for cleaning the smoke and fluid during the operation, an attachment for attaching and fixing the suction tube to the surgical instrument along the long axis of the suction tube, and a negative pressure connection tube connected to the tail end of the suction tube for connecting the suction tube to the negative pressure suction device. The head end of the suction tube is provided with a chute distributed along the long axis, and an inner cavity of the head end of the suction tube is buried with a suction slider that can slide along the inner cavity. An adjustment knob is provided at the middle section of the suction slider outside the chute of the suction tube.

[0006] Although the above solution can remove the smoke during the operation, its defects are at least that the attachment (2) includes an adhesive tape, a buckle, and a tie line, which is equivalent to a parallel connection between the attachment and the head of the surgical instrument, resulting in a large size of the additional suction tube and the head of the surgical instrument, and further affecting the use operation of the head of the surgical instrument, and its actual clinical effect is poor.

[0007] Therefore, the prior art needs to be improved. Utility Model Content

[0008] The purpose of the present application is to provide an ultrasonic knife suction device and an ultrasonic knife, aiming to solve the technical problem of how to provide a convenient and practical ultrasonic knife suction device in the prior art.

[0009] To achieve the above purpose, the technical solution adopted in the present application is:

[0010] The present application provides an ultrasonic knife suction device for being arranged on an ultrasonic knife rod, wherein it includes:

[0011] Step connector, the step connector is connected to the ultrasonic knife rod;

[0012] Suction sleeve, one end of the suction sleeve is detachably connected to the step connector, and the suction sleeve is sleeved on the ultrasonic knife rod. The suction sleeve is used to connect with the ultrasonic knife rod to form a fluid channel for gas flow;

[0013] Elastic seal, the elastic seal is located between the suction sleeve and the step connector;

[0014] Fastening component, the fastening component is connected to the step connector and the suction sleeve.

[0015] In one embodiment, the step connector includes:

[0016] First-stage connection part, the first-stage connection part is embedded in the suction sleeve to realize the detachable connection between the suction sleeve and the step connector, and the elastic seal is located between the suction sleeve and the step connector;

[0017] Second-stage connection part, the second-stage connection part is connected to the first-stage connection part, and the diameter of the second-stage connection part is larger than that of the first-stage connection part. The second-stage connection part is used to connect with the fastening component.

[0018] In one embodiment, the first-stage connection part includes one of the following structures:

[0019] Snap structure or threaded body.

[0020] In one embodiment, the second-stage connection part includes one of the following structures:

[0021] Threaded body or threaded hole.

[0022] In one embodiment, the fastening component includes one of the following structures:

[0023] Nut fastening or double-nut fastening or screw fastening or hoop fastening.

[0024] In one embodiment, the suction sleeve includes:

[0025] Sleeve body, the sleeve body is used to be sleeved on the periphery of the ultrasonic knife rod to form the fluid channel;

[0026] Suction opening, the suction opening is arranged at one end of the sleeve body away from the step connector. The suction opening is used for smoke to enter the fluid channel;

[0027] The sleeve connection part is arranged on one side of the sleeve body close to the stepped connection head, and the sleeve connection part is used for detachably connecting with the stepped connection head.

[0028] In one embodiment, it further includes:

[0029] A negative pressure aspirator, which is communicated with the fluid passage, and the negative pressure aspirator is used for sucking the smoke in the fluid passage.

[0030] In one embodiment, it further includes: a control button, which is connected to the negative pressure aspirator, and the control button is used for controlling the negative pressure aspirator. An ultrasonic handle is connected to the ultrasonic knife rod, and the control button is arranged on the ultrasonic handle.

[0031] In one embodiment, it further includes: a foot switch, which is connected to the negative pressure aspirator, and the foot switch is used for controlling the negative pressure aspirator.

[0032] In one embodiment, a telescopic tube is arranged at the knife head end of the suction sleeve close to the ultrasonic knife rod, and the telescopic tube is connected in the suction sleeve and is slidably connected with the suction sleeve.

[0033] In a second aspect, the present application provides an ultrasonic knife, wherein the ultrasonic knife includes the ultrasonic knife suction device as described in the above embodiments. Therefore, this ultrasonic knife can have all the technical features and effects of the above ultrasonic knife suction device, which will not be elaborated here.

[0034] The beneficial effects of the ultrasonic knife suction device and the ultrasonic knife provided by the present application are at least as follows:

[0035] The present application discloses an ultrasonic knife suction device and an ultrasonic knife. Among them, the ultrasonic knife suction device includes a stepped connection head, a suction sleeve, an elastic seal, and a fastening component. The stepped connection head is connected to the ultrasonic knife rod. One end of the suction sleeve is detachably connected to the stepped connection head, and the suction sleeve is sleeved on the ultrasonic knife rod. The suction sleeve is used for connecting with the ultrasonic knife rod to form a fluid passage for gas circulation. The elastic seal is located between the suction sleeve and the stepped connection head, and the fastening component is connected to the stepped connection head and the suction sleeve. The present application connects the suction sleeve to the ultrasonic knife rod through the stepped connection head, so that the suction sleeve and the ultrasonic knife rod form a fluid passage for smoke circulation. Its structure is simple, easy to manufacture, the connection is stable, the disassembly and assembly are convenient, it can reduce the production difficulty of the suction device, is convenient to use, can effectively collect and purify smoke, blood, body fluids, etc., ensure the clarity of the doctor's vision during operation, and improve the working efficiency of ultrasonic knife surgery. Description of the Drawings

[0036] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for use in the embodiments or the description of the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0037] Figure 1 Schematic diagram of the connection structure between the suction cannula and the ultrasonic scalpel bar provided by the embodiment of the present application;

[0038] Figure 2 Schematic diagram of the structure of the specific embodiment of the suction cannula provided by the embodiment of the present application;

[0039] Figure 3 Schematic diagram of the connection structure between the stepped connector and the ultrasonic scalpel bar provided by the embodiment of the present application;

[0040] Figure 4 Schematic diagram of the connection structure between the nut fastening and the stepped connector provided by the embodiment of the present application;

[0041] Figure 5 Schematic diagram of the connection structure between the double-nut fastening and the stepped connector provided by the embodiment of the present application;

[0042] Figure 6 Schematic diagram of the structure of the specific embodiment of the double-nut fastening and the stepped connector provided by the embodiment of the present application;

[0043] Figure 7 Schematic diagram of the connection structure between the screw fastening and the stepped connector provided by the embodiment of the present application;

[0044] Figure 8 Schematic diagram of the connection structure between the foot switch and the ultrasonic main unit provided by the embodiment of the present application;

[0045] Figure 9 Schematic diagram of the connection structure between the suction cannula and the telescopic tube provided by the embodiment of the present application.

[0046] Among them, the reference numerals in the figures:

[0047] 100. Ultrasonic knife rod; 200. Suction sleeve; 300. Ultrasonic handle; 400. Step connector; 500. Fastening component; 600. Elastic seal; 700. Negative pressure suction device; 800. Foot switch; 900. Telescopic tube; 210. Sleeve body; 220. Suction opening; 230. Sleeve connection part; 240. Connection joint; 250. Fluid channel; 221. Suction hole; 310. Ultrasonic host; 320. Control button; 410. First - stage connection part; 420. Second - stage connection part; 510. Nut fastening; 520. Double - nut fastening; 530. Screw fastening; 521. First nut; 522. Second nut; 531. Connection sleeve; 532. Connection screw. Detailed implementation mode

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further elaborates on this application in combination with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0049] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The orientations or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positions shown in the drawings, and are only for the convenience of description and cannot be construed as limitations on the technical solution of this application. The terms "first" and "second" are only used for the purpose of convenient description and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0050] Embodiment 1:

[0051] Please refer to Figure 1 , this embodiment provides an ultrasonic knife suction device, which includes a step connector 400 ( Figure 3 as shown in Figure 4 ), a suction sleeve 200, an elastic seal 600 ( Figure 4 as shown in Figure 5 ), and a fastening component 500 ( Figure 4 as shown in Figure 4 ). The step connector 400 is connected to the ultrasonic knife rod 100. One end of the suction sleeve 200 is detachably connected to the step connector 400, and the suction sleeve 200 is sleeved on the ultrasonic knife rod 100. The suction sleeve 200 is used to connect with the ultrasonic knife rod 100 to form a fluid channel 250 for gas circulation ( Figure 5As shown in [figure reference], the elastic seal 600 is located between the suction cannula 200 and the stepped connector 400, and the fastening member 500 is connected to the stepped connector 400 and the suction cannula 200.

[0052] In this embodiment, the stepped connector 400 can be integrally formed with the ultrasonic scalpel rod 100. The stepped connector 400 is used to connect the suction cannula 200 and the ultrasonic scalpel rod 100, enabling the suction cannula 200 to be installed on the ultrasonic scalpel rod 100. The operation is simple and convenient to use. Under the action of the negative pressure aspirator 700 ( Figure 2 as shown in [figure reference]), the smoke can be sucked away by the suction cannula 200. Thus, the smoke generated by the high-temperature cutting of the ultrasonic scalpel rod 100 can be effectively collected and purified, ensuring the clarity of the doctor's field of vision during the surgical operation and ensuring the working efficiency and safety of the ultrasonic scalpel.

[0053] Meanwhile, the suction cannula 200 can be disassembled and washed through the stepped connector 400, enabling the suction cannula 200 to be reused. It is safe and hygienic, prolonging the service life of the ultrasonic scalpel and reducing the equipment cost.

[0054] The elastic seal 600 can ensure the sealing performance of the connection between the suction cannula 200 and the ultrasonic scalpel rod 100, improving the working efficiency of the negative pressure aspirator 700.

[0055] The fastening member 500 can further ensure the stability of the connection between the suction cannula 200 and the ultrasonic scalpel rod 100.

[0056] Therefore, in this embodiment, the suction cannula 200 is connected to the ultrasonic scalpel rod 100 through the stepped connector 400, enabling the suction cannula 200 and the ultrasonic scalpel rod 100 to form a fluid channel 250 for the flow of smoke. Its structure is simple, easy to manufacture, the connection is stable, the disassembly and assembly are convenient, which can reduce the production difficulty of the suction device, is convenient to use, can effectively collect and purify smoke, blood, body fluids, etc., ensure the clarity of the doctor's field of vision during the operation, and improve the working efficiency of the ultrasonic scalpel surgery.

[0057] Specifically, please refer to Figure 3 and Figure 4 , the stepped connector 400 includes: a first-stage connection portion 410 and a second-stage connection portion 420. The first-stage connection portion 410 is embedded in the suction cannula 200 to achieve a detachable connection between the suction cannula 200 and the stepped connector 400, and the elastic seal 600 is located between the suction cannula 200 and the stepped connector 400. The second-stage connection portion 420 is connected to the first-stage connection portion 410, and the diameter of the second-stage connection portion 420 is larger than that of the first-stage connection portion 410. The second-stage connection portion 420 is used to connect to the fastening member 500 to achieve the connection of the fastening member 500 to the suction cannula 200 and the second-stage connection portion 420.

[0058] In this embodiment, the first-stage connecting portion 410 is embedded in the inner wall of the suction sleeve 200 and is hermetically connected to the suction sleeve 200 through an elastic seal 600. The second-stage connecting portion 420 is connected to the outer wall of the suction sleeve 200 through a fastening member 500, so that the fastening member 500 is firmly fixed to the suction sleeve 200 and the ultrasonic knife rod 100. Among them, the diameter of the second-stage connecting portion 420 is larger than that of the first-stage connecting portion 410. The second-stage connecting portion 420 and the first-stage connecting portion 410 are connected to form a stepped structure to achieve a double-connection structure with the suction sleeve 200, which has high connection stability and is convenient for disassembly and assembly.

[0059] Optionally, please refer to Figure 3 and Figure 4 , the first-stage connecting portion 410 includes one of the following structures:

[0060] A snap structure or a threaded body.

[0061] For example, the first-stage connecting portion 410 may include a snap structure, and another snap structure matching the snap structure may be provided on the suction sleeve 200. When the first-stage connecting portion 410 is inserted into the suction sleeve 200, the suction sleeve 200 and the first-stage connecting portion 410 are snap-connected through the snap structure.

[0062] For example, the first-stage connecting portion 410 may include a threaded body. The suction sleeve 200 is sleeved on the first-stage connecting portion 410, and an internal thread matching the threaded body may be provided on the inner wall of the suction sleeve 200. The suction sleeve 200 and the first-stage connecting portion 410 are detachably connected by a thread.

[0063] Optionally, please refer to Figure 3 and Figure 4 , the second-stage connecting portion 420 includes one of the following structures:

[0064] A threaded body or a threaded hole.

[0065] For example, the second-stage connecting portion 420 may include a threaded body, that is, an external thread may be provided on the outer wall of the second-stage connecting portion 420, and an external thread may be provided on the outer wall of the suction sleeve 200. The second-stage connecting portion 420 may be threadedly connected to the fastening member 500 through the threaded body. When the fastening member 500 is fixed to the second-stage connecting portion 420, the fastening member 500 may move toward the external thread side of the outer wall of the suction sleeve 200 through the threaded body, so that the fastening member 500 is threadedly detachably connected to both the suction sleeve 200 and the second-stage connecting portion 420.

[0066] For example, the second-stage connection portion 420 may include a threaded hole for connecting a fastening member 500. The suction cannula 200 may also be provided with a threaded hole. When the suction cannula 200 is connected to the ultrasonic knife bar 100, the fastening member 500 can be sleeved on the suction cannula 200 and the second-stage connection portion 420. Then, the fastening member 500 can be fixedly connected to the suction cannula 200 and the second-stage connection portion 420 respectively by screws.

[0067] Optionally, the fastening member 500 includes one of the following structures:

[0068] nut fastening 510 or double-nut fastening 520 or screw fastening 530 or clamp fastening.

[0069] For example, please refer to Figure 4 , the fastening member 500 may include nut fastening 510, that is, the suction cannula 200 and the second-stage connection portion 420 are detachably connected by a nut to achieve double fixation of the suction cannula 200 and the ultrasonic knife bar 100.

[0070] For example, please refer to Figure 5 and Figure 6 , the fastening member 500 may include double-nut fastening 520, that is, the suction cannula 200 and the second-stage connection portion 420 are detachably connected by two nuts to achieve double fixation of the suction cannula 200 and the ultrasonic knife bar 100. Among them, the two nuts include a first nut 521 and a second nut 522. The first nut 521 is connected to the suction cannula 200 and the second-stage connection portion 420, and the second nut 522 is connected to the second-stage connection portion 420, and the second nut 522 abuts against the first nut 521. The second nut 522 can prevent the first nut 521 from loosening to strengthen the connection between the suction cannula 200 and the ultrasonic knife bar 100.

[0071] For example, please refer to Figure 7 , the fastening member 500 may include screw fastening 530. The screw fastening 530 may include a connecting sleeve 531 and a connecting screw 532. The connecting sleeve 531 is sleeved on the suction cannula 200 and the second-stage connection portion 420. One end of the connecting sleeve 531 is fixedly connected to the suction cannula 200 by the connecting screw 532, and the other end of the connecting sleeve 531 is fixedly connected to the second-stage connection portion 420 by the connecting screw 532 to achieve double fixation of the suction cannula 200 and the ultrasonic knife bar 100.

[0072] For example, the fastening member 500 may include clamp fastening (not shown in the figure), that is, one end of the clamp fastening is sleeved on the suction cannula 200, and the other end of the clamp fastening is sleeved on the second-stage connection portion 420. The suction cannula 200 and the second-stage connection portion 420 are connected together by the clamp fastening to achieve double fixation of the suction cannula 200 and the ultrasonic knife bar 100.

[0073] Specifically, please refer to Figure 4 , the elastic seal 600 may include an elastic sealing washer, that is, the suction sleeve 200 and the stepped connector 400 are hermetically connected by an elastic sealing washer. The elastic sealing washer can be sleeved on the first-stage connecting portion 410 and abuts against the second-stage connecting portion 420. For example, when the suction sleeve 200 is sleeved on the first-stage connecting portion 410, the suction sleeve 200 can be pressed against the elastic sealing washer to achieve the sealed connection between the suction sleeve 200 and the stepped connector 400.

[0074] Specifically, please refer to Figure 5 , the suction sleeve 200 includes: a sleeve body 210, a suction opening 220, a connection joint 240, and a sleeve connecting portion 230. The sleeve body 210 is used to be sleeved around the ultrasonic knife rod 100 to form a fluid channel 250. The suction opening 220 is provided at one end of the sleeve body 210 away from the stepped connector 400. The suction opening 220 is used for smoke to enter the fluid channel 250. The connection joint 240 is located on the side of the sleeve body 210 close to the stepped connector 400. The connection joint 240 communicates with the fluid channel 250. The connection joint 240 is used to communicate with a negative pressure suction device 700. The sleeve connecting portion 230 is provided on the side of the sleeve body 210 close to the stepped connector 400. The sleeve connecting portion 230 is used for detachable connection with the stepped connector 400.

[0075] In this embodiment, the sleeve body 210 is sleeved around the ultrasonic knife rod 100, and the connection between the sleeve body 210 and the ultrasonic knife rod 100 can form a fluid channel 250. Among them, the suction opening 220 is provided at one end of the sleeve body 210 away from the stepped connector 400, that is, the suction opening 220 is provided at the top end of the sleeve body 210. For example, a certain gap can be maintained between the top end of the sleeve body 210 and the ultrasonic knife rod 100 to form the suction opening 220, or a plurality of suction holes 221 are provided at the top end of the sleeve body 210, and the plurality of suction holes 221 form the suction opening 220. The plurality of suction holes 221 are all communicated with the fluid channel 250. A connection joint 240 is provided on the side of the sleeve body 210 close to the stepped connector 400. The connection joint 240 communicates with the fluid channel 250. The suction sleeve 200 can communicate with the negative pressure suction device 700 through the connection joint 240. The sleeve connecting portion 230 is provided on the side of the sleeve body 210 close to the stepped connector 400. The sleeve connecting portion 230 is used for fixedly connecting with the stepped connector 400 on the ultrasonic knife rod 100.

[0076] Specifically, please refer to Figure 2, the ultrasonic knife aspiration device further includes: a negative pressure aspirator 700, which is connected to the fluid passage 250. The negative pressure aspirator 700 is used to suck the smoke in the fluid passage 250. Under the action of the negative pressure aspirator 700, the smoke can be sucked out through the suction opening 220, the fluid passage 250, and the connection joint 240, so as to timely absorb the smoke generated by the ultrasonic knife, avoid the smoke from affecting the line of sight, and ensure the smooth progress of the operation.

[0077] Specifically, please refer to Figure 2 , the ultrasonic knife aspiration device further includes: a control button 320, which is connected to the negative pressure aspirator 700. The control button 320 is used to control the negative pressure aspirator 700. The ultrasonic knife rod 100 is connected with an ultrasonic handle 300, and the control button 320 is arranged on the ultrasonic handle 300.

[0078] In this embodiment, the ultrasonic handle 300 can be connected to the ultrasonic host 310. The ultrasonic handle 300 can be provided with a control button 320. Through the control button 320, the switch and power of the negative pressure aspirator 700 can be controlled, so as to cooperate with the use of the ultrasonic knife rod 100 and timely suck out the smoke.

[0079] Specifically, please refer to Figure 8 , the ultrasonic knife aspiration device further includes: a foot switch 800, which is connected to the negative pressure aspirator 700. The foot switch 800 is used to control the negative pressure aspirator 700.

[0080] In this embodiment, the foot switch 800 can be connected to the ultrasonic host 310. The switch and power of the negative pressure aspirator 700 are controlled by the foot switch 800, so as to cooperate with the use of the ultrasonic knife rod 100 and timely suck out the smoke. In this way, the doctor can control the negative pressure aspirator 700 with the foot, so that the foot switch 800 and the ultrasonic handle 300 are separately arranged, preventing the misoperation of the ultrasonic handle 300 and improving the safety of the ultrasonic knife aspiration device.

[0081] Specifically, a telescopic tube 900 is arranged at one end of the suction cannula 200 close to the knife head of the ultrasonic knife rod 100. The telescopic tube 900 is connected in the suction cannula 200 and is slidably connected to the suction cannula 200.

[0082] In this embodiment, the telescopic tube 900 can be telescopically moved along the ultrasonic knife rod 100 through telescopic movement. During use, the suction cannula 200 can not only suck the smoke generated during the operation, but also when the telescopic tube 900 is extended to the end of the knife head, the telescopic tube 900 can suck blood and body fluids, effectively improving the working efficiency of the ultrasonic knife operation. Among them, the control switch, fixed limit, etc. of the telescopic tube 900 can be understood as the prior art, so the specific structure of the telescopic tube will not be described in detail.

[0083] Embodiment 2:

[0084] Please refer to Figure 2 and Figure 8 , this embodiment provides a harmonic scalpel, wherein the harmonic scalpel includes the harmonic scalpel suction device of the above embodiment. Thus, the harmonic scalpel can have all the technical features and effects of the above harmonic scalpel suction device, which will not be elaborated herein.

[0085] In summary, the present application discloses a harmonic scalpel suction device and a harmonic scalpel. The harmonic scalpel suction device includes a stepped connector, a suction sleeve, an elastic seal, and a fastening member. The stepped connector is connected to the harmonic scalpel rod. One end of the suction sleeve is detachably connected to the stepped connector, and the suction sleeve is sleeved on the harmonic scalpel rod. The suction sleeve is used to form a fluid passage for gas circulation in connection with the harmonic scalpel rod. The elastic seal is located between the suction sleeve and the stepped connector. The fastening member is connected to the stepped connector and the suction sleeve. By connecting the suction sleeve to the harmonic scalpel rod through the stepped connector, the present application enables the suction sleeve and the harmonic scalpel rod to form a fluid passage for smoke circulation. It has a simple structure, is easy to manufacture, has stable connection, is convenient for disassembly and assembly, can reduce the production difficulty of the suction device, is convenient to use, can effectively collect and purify smoke, blood, body fluids, etc., ensure the clarity of the doctor's vision during operation, and improve the working efficiency of harmonic scalpel surgery.

[0086] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ultrasonic knife suction device, used to be arranged on an ultrasonic knife rod, characterized in that: include: A step connector, the step connector is connected to the ultrasonic knife rod; A suction sleeve, one end of which is detachably connected to the step connector, and the suction sleeve is sleeved on the ultrasonic knife rod, and the suction sleeve is used to connect with the ultrasonic knife rod to form a fluid channel for gas circulation; An elastic sealing member, the elastic sealing member being located between the suction sleeve and the step connector; A fastening component is connected to the step connector and the suction sleeve.

2. The ultrasonic knife suction device according to claim 1, characterized in that: The step connector comprises: A first step connection portion, wherein the first step connection portion is embedded in the suction sleeve to achieve a detachable connection between the suction sleeve and the step connection head, and the elastic sealing member is located between the suction sleeve and the step connection head; The second step connection portion is connected to the first step connection portion, and the diameter of the second step connection portion is larger than that of the first step connection portion, and the second step connection portion is used to connect with the fastening component.

3. The ultrasonic knife suction device according to claim 2, characterized in that: The first-stage connection portion includes one of the following structures: Snap-fit ​​structure or threaded body.

4. The ultrasonic knife suction device according to claim 2, characterized in that: The second-stage connection portion includes one of the following structures: Threaded body or threaded hole.

5. The ultrasonic knife suction device according to claim 1, characterized in that: The fastening component includes one of the following structures: Nut tightening or double nut tightening or screw tightening or clamp tightening.

6. The ultrasonic knife suction device according to claim 1, characterized in that: The suction cannula comprises: A sleeve body, the sleeve body is used to be sleeved on the periphery of the ultrasonic knife rod to form the fluid channel; A suction opening, the suction opening being arranged at one end of the sleeve body away from the step connector, the suction opening being used for smoke to enter the fluid channel; The sleeve connecting part is arranged on a side of the sleeve body close to the step connecting head, and the sleeve connecting part is used for detachable connection with the step connecting head.

7. The ultrasonic knife suction device according to claim 1, characterized in that: Also includes: A negative pressure suction device is connected to the fluid channel and is used to absorb smoke in the fluid channel.

8. The ultrasonic knife suction device according to claim 7, characterized in that: Also includes: A control button, the control button is connected to the negative pressure aspirator, the control button is used to control the negative pressure aspirator, the ultrasonic knife rod is connected to an ultrasonic handle, and the control button is arranged on the ultrasonic handle; A foot switch is connected to the negative pressure aspirator, and the foot switch is used to control the negative pressure aspirator.

9. The ultrasonic knife suction device according to claim 1, characterized in that: A telescopic tube is provided at one end of the suction sleeve close to the blade head of the ultrasonic knife rod. The telescopic tube is connected inside the suction sleeve and is slidably connected to the suction sleeve.

10. An ultrasonic scalpel, characterized in that: The ultrasonic scalpel comprises the ultrasonic scalpel suction device as described in any one of claims 1-9.

Images