Surgical instrument

Abstract

The invention relates to a surgical instrument which comprises a pressurizing device, a limiting device, a control device, a flushing and sucking pipeline, a first fluid channel and a second fluid channel, the first fluid channel is connected with the control device, the second fluid channel is connected with the control device through the pressurizing device, the flushing and sucking pipeline is communicated with the control device, and the control device comprises a valve element. The valve element controls the first fluid channel or the second fluid channel to be communicated with or disconnected from the flushing and sucking pipeline, the limiting device is connected with the valve element, the valve element drives the limiting device to be switched between the locking position and the releasing position, and when the second fluid channel and the flushing and sucking pipeline are disconnected, the limiting device is located at the locking position, and the supercharging device cannot be started. According to the surgical instrument, channel control between the two fluid channels and the flushing and sucking pipeline can be controlled through the single control valve, and operation is convenient; meanwhile, damage caused by mistaken starting of the supercharging device can be avoided; in addition, all parts are high in integration degree, and occupied space is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a surgical instrument. Background Art

[0002] Surgical instruments are indispensable tools in surgical operations. They are used for diagnosis, treatment and surgical operations, such as staplers, flushing and suction ablation electrode devices, etc. The flushing and suction ablation electrode device flushes and suctions the surgical site through two pipes respectively. The existing devices usually use control valves to control the two fluids respectively. For example, the patent with announcement number CN221830770U discloses a portable flushing and suction ablation electrode. A flushing regulating valve and a suction regulating valve are fixed inside the handle respectively. The flushing regulating valve and the suction regulating valve respectively control two sections of connecting pipes, and the two sections of connecting pipes are respectively connected to the flushing regulating valve and the suction regulating valve. However, in the above scheme, two fluids need to be controlled separately by two regulating valves, and the two regulating valves correspond to two buttons. The user needs to press and control them separately, which is less convenient to use. In addition, during the flushing process, when the flushing pressure needs to be increased, a booster device is required. The manual booster device provided on the instrument is easily misoperated by the user, resulting in damage to the booster device. Summary of the invention

[0003] In order to solve the problems of the prior art, the present invention provides a surgical instrument which can easily control the on-off of two fluid channels, is easy to operate, and has a pressurizing device that is not easily damaged.

[0004] The specific technical scheme is as follows: A surgical instrument comprises a boosting device, a limiting device, a control device, a flushing and suction pipe, a first fluid channel and a second fluid channel, wherein the first fluid channel is connected to the control device, the second fluid channel is connected to the control device via the boosting device, the flushing and suction pipe is connected to the control device, the control device comprises a valve core, the valve core controls the connection or disconnection of the first fluid channel or the second fluid channel with the flushing and suction pipe, the limiting device is connected to the valve core, the valve core drives the limiting device to switch between a locking position and a releasing position, when the second fluid channel and the flushing and suction pipe are disconnected, the limiting device is in a locking position, and the boosting device cannot be started.

[0005] In some embodiments, the control device includes a valve body, a valve core is rotatably arranged in the valve body, a first channel and a second channel are arranged in the valve core, the first fluid channel, the second fluid channel and the flushing and suction pipe are respectively connected to the interface on the valve body, and the valve core rotates to switch the connection or disconnection between the first and second channels and the interface.

[0006] In some embodiments, the valve core includes a flushing gear, a suction gear and a cut-off gear. When the valve core is in the flushing gear, the second fluid channel and the flushing and suction pipeline are connected through the first channel, the first fluid channel is cut off from the flushing and suction pipeline, and the limit device is in the release position; when the valve core is in the suction gear, the first fluid channel and the flushing and suction pipeline are connected through the second channel, and the second fluid channel is cut off from the flushing and suction pipeline; when the valve core is in the cut-off gear, the first and second fluid channels are not connected to the flushing and suction pipeline, and the limit device is in the locking position.

[0007] In some embodiments, the interface of the valve body includes a first interface, a second interface and a third interface. The first and second interfaces are respectively connected to the first and second fluid channels, the third interface is connected to the flushing and suction pipe, the two ends of the first channel correspond to the first and third interfaces, and the two ends of the second channel correspond to the second and third interfaces.

[0008] In some embodiments, a first strip hole is disposed at one end of the first channel, and a second strip hole is disposed at one end of the second channel. The first and second strip holes are arranged in parallel and correspond to the third interface respectively.

[0009] In some embodiments, the boosting device includes a button and a boosting valve connected to the button, and the limit device includes a limit member and a connecting rod, the connecting rod is pivotally connected to the main body of the surgical instrument and the two ends are respectively connected to the limit member and the valve core, and the valve core drives the limit member to insert or disengage from the moving path of the button through the connecting rod.

[0010] In some embodiments, the surgical instrument includes a handle and a body, the button is arranged on the handle, the control device is located at the connection between the handle and the body, and the limiting device is arranged above the button.

[0011] In some embodiments, the valve core is connected to an operating rod, the operating rod is disposed in a notch on the surface of the main body, and the valve core is disposed in a cylindrical hole of the valve body. When the operating rod is pushed, the valve core rotates relative to the valve body.

[0012] In some embodiments, the first fluid channel and the second fluid channel enter from the bottom of the handle, the first fluid channel is a suction channel, and the second fluid channel is a flushing channel.

[0013] In some embodiments, the second fluid channel includes a first conduit and a second conduit, the first conduit enters from the bottom of the handle and is connected to the boosting device, and the second conduit is respectively connected to the boosting device and the control device.

[0014] Technical effects of the present invention: A surgical instrument of the present invention can control the channel control between two fluid channels and the flushing and suction pipes through a single control valve, which is easy to operate; at the same time, it can avoid damage caused by accidental start-up of the boosting device; in addition, the components are highly integrated, effectively reducing space occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 Schematic diagram of a surgical instrument according to an embodiment of the present invention.

[0017] Figure 2 It is a diagram of the internal structure of a surgical instrument according to an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of a valve core according to an embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the first channel and the second channel of an embodiment of the present invention.

[0020] Figure 5 4 is a cross-sectional view of a valve core according to an embodiment of the present invention.

[0021] Figure 6 Schematic diagram of a strip-shaped hole according to an embodiment of the present invention.

[0022] Figure 7 Schematic diagram of the first channel and the second channel of an embodiment of the present invention.

[0023] Figure 8 Schematic diagram of a valve body according to an embodiment of the present invention.

[0024] Fig. 9 Schematic diagram of a limiting device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0029] like Figures 1 to 9As shown, a surgical instrument of this embodiment includes a booster device 1, a limiter device 2, a control device 3, a flushing and suction pipeline 4, a first fluid channel 5 and a second fluid channel 6. The first fluid channel 5 is connected to the control device 3, and the second fluid channel 6 is connected to the control device 3 via the booster device 1. The flushing and suction pipeline 4 is connected to the control device 3. The control device 3 controls the connection or disconnection of the first and second fluid channels with the flushing and suction pipeline 4. The flushing and suction pipeline 4 is used for flushing or suction, and can deliver flushing fluid to clean tissues during surgery, and absorb tissue fluids such as blood. The first fluid channel 5 is connected to an external suction pump, and the pump provides suction power; the second fluid channel 6 is connected to a flushing fluid supply device to provide flushing fluid. The control device 3 includes a valve core 31, and the valve core 31 controls the first fluid channel 5 or the second fluid channel 6 to be connected or disconnected with the flushing and suction pipeline 4. The limiter device 2 is connected to the valve core 31, and the valve core 31 drives the limiter device 2 to switch between the locking position and the release position. When the second fluid channel 6 and the flushing and suction pipeline 4 are disconnected, the limiter device 2 is in the locking position, and the booster device 1 cannot be started. In the above technical scheme, the booster device 1 is used to increase the pressure of the flushing liquid when flushing, and the pressure is manually increased by pressing a button. The booster device in the prior art can be used, and the prior application of the applicant with application number 202422642963.3 can also be used. Since the internal pressure of the booster device 1 increases after the booster device 1 is started, when the second fluid channel 6 is cut off, the pressure has no outlet, which is easy to cause internal damage. By setting the limit device 2, the booster device 1 cannot be started when the second fluid channel 6 is cut off, thereby avoiding the booster device 1 from being damaged due to the accidental start-up. The limit device 2 and the control device 3 are both linked to the valve core 31, so as to facilitate control, and the user only needs to operate the valve core 31. Through the above technical scheme, the channel control between the two fluid channels and the flushing and suction pipeline can be facilitated, and at the same time, the booster device can be prevented from being damaged due to the accidental start-up. The surgical instrument of this embodiment is an flushing and suction ablation electrode device.

[0030] In this embodiment, the control device 3 includes a valve body 32, a valve core 31 is rotatably arranged in the valve body 32, a first channel 10 and a second channel 20 are arranged in the valve core 31, a first fluid channel 5, a second fluid channel 6 and a flushing and suction pipe 4 are respectively connected to the interface on the valve body 32, and the valve core 31 rotates to switch the connection or disconnection between the first and second channels and the interface. Through the above technical solution, the rotation of the valve core 31 can adjust the connection and disconnection between the first and second channels of the valve core and different interfaces, thereby realizing the connection and disconnection between the first and second fluids and the flushing and suction pipe 4. The first channel 10 and the second channel 20 of this embodiment are arranged in parallel.

[0031] In this embodiment, the valve core 31 includes a flushing gear, a suction gear and a cut-off gear, and the gear position can be marked on the main body 101 of the surgical instrument. When the valve core 31 is in the flushing gear, the second fluid channel 6 and the flushing and suction pipeline 4 are connected through the first channel 10, the first fluid channel 5 is cut off from the flushing and suction pipeline 4, and the limit device 2 is in the release position; when the valve core 31 is in the suction gear, the first fluid channel 5 is connected to the flushing and suction pipeline 4 through the second channel 20, and the second fluid channel 6 is cut off from the flushing and suction pipeline 4; when the valve core 31 is in the cut-off gear, the first and second fluid channels are not connected to the flushing and suction pipeline, and the limit device 2 is in the locking position. Through the above technical solution, the valve core can be switched between different gears by rotation, which facilitates the control of the fluid channel.

[0032] Further, the interface of the valve body 32 includes a first interface 321, a second interface 322 and a third interface 323. The first and second interfaces are connected to the first and second fluid channels respectively, and the third interface 323 is connected to the flushing and suction pipeline 4. The two ends of the first channel 10 correspond to the first and third interfaces, and the two ends of the second channel 20 correspond to the second and third interfaces. Through the above technical solution, the rotation of the valve core 31 drives the first and second channels to rotate, so that they can be switched between different interfaces. When the valve core is in the flushing gear, the second channel 20 is connected to the second interface 322 and the third interface 323, so that the flushing liquid in the second fluid channel 6 can enter the flushing and suction pipeline 4 through the second interface 322, the second channel 20, and the third interface 323 in sequence; when the valve core is in the suction gear, the first channel 10 is connected to the first interface 321 and the third interface 323, so that the tissue fluid passes through the flushing and suction pipeline 4 through the third interface 323, the first channel 10, and the first interface 321 into the first fluid channel 5, thereby extracting the tissue fluid. Through the above technical solution, it is convenient to connect the two fluid channels and the flushing and suction pipe 4 to the valve body through the interface. Only a third interface 323 needs to be set to connect with one flushing and suction pipe 4, so that the first and second channels can share one flushing and suction pipe 4, thereby reducing the number of pipes and avoiding the pipes being squeezed and bent inside the surgical instrument due to the large number of pipes, thereby affecting the fluid flow. At the same time, the volume of the surgical instrument can be reduced.

[0033] Furthermore, a first strip hole 101 is provided at one end of the first channel 10, and a second strip hole 201 is provided at one end of the second channel 20. The first and second strip holes are arranged in parallel and correspond to the third interface 323 respectively. By setting two strip holes, the hole can be elongated so that it can overlap with the third interface 323 on the rotation path, so that the two strip holes can be connected to the third interface 323 respectively, and the other end of the first and second channels is a circular hole.

[0034] In this embodiment, the boosting device 1 includes a button 11 and a boosting valve 12 connected to the button 11. The limiting device 2 includes a limiting member 21 and a connecting rod 22. The connecting rod 22 is pivotally connected to the main body 100 of the surgical instrument and its two ends are respectively connected to the limiting member 21 and the valve core 31. The valve core 31 drives the limiting member 21 to be inserted into or out of the moving path of the button 11 through the connecting rod 22. Through the above technical solution, the movement of the limiting member 21 can be controlled by rotating the valve core 31. After the limiting member 21 is inserted into the moving path of the button 11, when the user presses the button 11, the button 11 is stuck and cannot move. Specifically, the valve core 31 is clamped with one end of the connecting rod 22 through the mounting groove 33, and the other end of the connecting rod 22 is clamped with the limiting member 21. The middle part of the connecting rod 22 is connected to the pivot through a hole, so that when the valve core 31 rotates, the connecting rod 22 is driven to rotate, so that the connecting rod 22 drives the limiting member 21 to move.

[0035] In this embodiment, the surgical instrument includes a handle 200 and a body 300, and the button 11 is arranged on the handle 200. When the user uses the instrument, the handle 200 is held by the user, so that the button 11 can be conveniently controlled by fingers such as the index finger. The control device 3 is located at the connection between the handle 200 and the body 300, which is convenient for operation by fingers such as the thumb. The limit device 2 is arranged above the button 11. Through the above technical solution, the limit device 2, the control device 2 and the booster device 1 can be integrated into the handle position, thereby improving the integration and reducing the space occupation.

[0036] In this embodiment, the valve core 31 is connected to the operating rod 34. The operating rod 34 is set in the groove 110 on the surface of the main body 100. The valve core 31 is set in the cylindrical hole 321 of the valve body 32. When the operating rod 34 is pushed, the valve core 31 rotates relative to the valve body 32. When the user moves the operating rod 34, the valve core 31 can be driven to rotate relative to the valve body 32 through the operating rod 34. The gear position of the valve core 31 can be marked on the side of the groove 110 to help users identify it.

[0037] Furthermore, the first fluid channel 5 and the second fluid channel 6 enter from the bottom of the handle 200, the first fluid channel 5 is a suction channel, the second fluid channel 6 is a flushing channel, the first and second fluid channels are flexible conduits, and entering from the bottom of the handle 200 can not affect the user's holding operation, and the two fluid channels are independent channels. The second fluid channel 6 includes a first conduit 61 and a second conduit 62, the first conduit 61 enters from the bottom of the handle and is connected to the booster device 1, and the second conduit 62 is respectively connected to the booster device 1 and the control device 3, the flushing fluid is input through the first conduit 61, passes through the booster device 1, and enters the control device 3 through the second conduit 62, so that the pressure in the second conduit 62 can be controlled by the booster device 1.

[0038] A surgical instrument in this embodiment can control the channel control between two fluid channels and the flushing and suction pipelines through a single control valve, which is easy to operate; at the same time, it can avoid damage caused by accidental start-up of the booster device; in addition, the components are highly integrated, effectively reducing space occupancy.

[0039] A surgical instrument of the present invention has been described above, but the present invention is not limited to the above specific embodiments, and various modifications or changes can be made without departing from the scope of the claims. The present invention includes various modifications and changes within the scope of the claims.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A surgical instrument, characterized in that: It includes a boosting device, a limit device, a control device, a flushing and suction pipe, a first fluid channel and a second fluid channel. The first fluid channel is connected to the control device, and the second fluid channel is connected to the control device via the boosting device. The flushing and suction pipe is connected to the control device. The control device includes a valve core. The valve core controls the connection or disconnection of the first fluid channel or the second fluid channel with the flushing and suction pipe. The limit device is connected to the valve core. The valve core drives the limit device to switch between a locking position and a releasing position. When the second fluid channel and the flushing and suction pipe are disconnected, the limit device is in a locking position and the boosting device cannot be started.

2. The surgical instrument according to claim 1, characterized in that The control device includes a valve body, a valve core is rotatably arranged in the valve body, a first channel and a second channel are arranged in the valve core, the first fluid channel, the second fluid channel and the flushing and suction pipeline are respectively connected to the interface on the valve body, and the valve core rotates to switch the connection or cut off between the first and second channels and the interface.

3. The surgical instrument according to claim 2, characterized in that The valve core includes a flushing gear, a suction gear and a cut-off gear. When the valve core is in the flushing gear, the second fluid channel and the flushing and suction pipeline are connected through the first channel, the first fluid channel and the flushing and suction pipeline are cut off, and the limit device is in the release position; when the valve core is in the suction gear, the first fluid channel and the flushing and suction pipeline are connected through the second channel, and the second fluid channel and the flushing and suction pipeline are cut off; when the valve core is in the cut-off gear, the first and second fluid channels are not connected to the flushing and suction pipeline, and the limit device is in the locking position.

4. The surgical instrument according to claim 3, characterized in that The interfaces of the valve body include a first interface, a second interface and a third interface. The first and second interfaces are connected to the first and second fluid channels respectively, the third interface is connected to the flushing and suction pipeline, the two ends of the first channel correspond to the first and third interfaces, and the two ends of the second channel correspond to the second and third interfaces.

5. The surgical instrument according to claim 4, characterized in that A first strip hole is provided at one end of the first channel, and a second strip hole is provided at one end of the second channel. The first and second strip holes are arranged in parallel and correspond to the third interface respectively.

6. The surgical instrument according to claim 1, characterized in that The boosting device includes a button and a boosting valve connected to the button. The limit device includes a limit member and a connecting rod. The connecting rod is pivotally connected to the main body of the surgical instrument and its two ends are respectively connected to the limit member and the valve core. The valve core drives the limit member to insert into or out of the moving path of the button through the connecting rod.

7. The surgical instrument according to claim 1, characterized in that The surgical instrument comprises a handle and a body, a button is arranged on the handle, a control device is located at the connection between the handle and the body, and the limiting device is arranged above the button.

8. The surgical instrument according to claim 7, characterized in that The valve core is connected with an operating rod, the operating rod is arranged in a notch on the surface of the main body, and the valve core is arranged in a cylindrical hole of the valve body. When the operating rod is pushed, the valve core rotates relative to the valve body.

9. The surgical instrument according to claim 8, characterized in that The first fluid channel and the second fluid channel are entered from the bottom of the handle, the first fluid channel is a suction channel, and the second fluid channel is a flushing channel.

10. The surgical instrument according to claim 9, characterized in that The second fluid channel includes a first conduit and a second conduit. The first conduit enters from the bottom of the handle and is connected to the boosting device, and the second conduit is respectively connected to the boosting device and the control device.

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