CN114010335B

CN114010335B - Power main unit and surgical device

Info

Publication number: CN114010335B
Application number: CN202210014423.3A
Authority: CN
Inventors: 王迎智; 李浩泽; 齐斌
Original assignee: Apeiron Surgical Beijing Co Ltd
Current assignee: Apeiron Surgical Beijing Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-04-12
Anticipated expiration: 2042-01-07
Also published as: CN114010335A

Abstract

The invention discloses a power main machine and an operation device. The baffle is with the inside sealed chamber of keeping apart of shell body and hold the chamber, holds chamber and external UNICOM. Operating button and spout set up on holding the shell body that the chamber corresponds, but operating button atress slides in the spout, and motor box control structure, slide switch set up in sealed intracavity, and linkage seal structure's one end and operating button cooperation, the other end pass baffle and slide switch cooperation. The linkage seal structure is driven by the operating button during sterilization, and when the leakproofness of sealed chamber is guaranteed, the sliding switch who is located sealed intracavity carries out the synchronous linkage and lets motor box control structure switch on-off. On the one hand, the service life of the lithium battery in the motor box control structure is ensured. On the other hand, the sealing performance is ensured, and the damage to other structures in the sealing cavity in the sterilization process can be avoided.

Description

Power main unit and surgical device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a power main machine and an operation device.

Background

The surgical instrument needs to be sterilized before use, high-temperature and high-pressure strong corrosive gas is adopted for sterilization, the region of the electrical element arranged in the cavity of the surgical instrument needs to be sealed and isolated for preventing the electrical element and the like in the surgical instrument from being damaged, and the electrical element is guaranteed not to be corroded in the sterilization process. Moreover, when the motor box control structure of the surgical instrument is in a power-on state, the motor can keep an enabling state, and the lithium battery is in a discharging state at the moment. To prevent lithium battery failure caused by lithium battery discharge within a long sterilization time, the motor box control structure needs to be kept powered off during the sterilization process. The existing common structure is that the inner side and the outer side of the cavity are isolated by the elastic diaphragm, and an external button can press an internal switch through the elastic diaphragm to realize power-on and power-off operations. To ensure the handling feel, the membrane is thin, which results in that it cannot withstand excessive pressure and the handling feel is not clear.

Disclosure of Invention

The present invention has been made in view of the above problems, and aims to provide a power master which overcomes or at least partially solves the above problems.

According to a first aspect of the present invention, there is provided a power main unit, comprising an outer casing, a partition plate, a motor box control structure, an operation button, a chute, a slide switch, and a linkage sealing structure;

the inside of the outer shell is isolated into a sealing cavity and an accommodating cavity by the partition plate, the accommodating cavity is communicated with the outside, the operating button and the sliding groove are arranged on the outer shell corresponding to the accommodating cavity, the operating button can slide in the sliding groove under stress, the motor box control structure and the sliding switch are arranged in the sealing cavity, one end of the linkage sealing structure is matched with the operating button, and the other end of the linkage sealing structure penetrates through the partition plate to be matched with the sliding switch;

the operating button is manually slid, and the linkage sealing structure keeps the sealing performance of the seal and simultaneously drives the sliding switch to synchronously act to change the power-on state of the motor box control structure.

Optionally, the linkage sealing structure comprises a fixed shell, a connecting shaft, a sealing ring and a sliding rod, wherein the fixed shell, the connecting shaft, the sealing ring and the sliding rod are fixed on the partition plate;

the fixed shell comprises a movable cavity, the connecting shaft penetrates through the partition plate and enters the movable cavity, two ends of the connecting shaft are respectively connected with the operating button and the sliding rod, a mounting hole for the sliding rod to penetrate through is formed in the fixed shell, the sliding rod is in clearance fit with the mounting hole and is fixed with the sliding switch, and the sealing ring is located in the mounting hole and forms press contact with the sliding rod;

the sliding rod is in transmission connection with the operating button and slides in the same direction to drive the sliding switch to synchronously act to change the power-on state of the motor box control structure.

Optionally, the extending direction of the sliding rod intersects with the extending direction of the connecting shaft.

Optionally, the sliding switch includes a contact surface for pressing and contacting the motor box control structure, and the contact surface is a plane.

Optionally, the sliding switch is electrically connected to the motor box control structure, and the sliding switch changes the power-on state of the motor box control structure through a sliding conversion contact.

Optionally, the operating button includes the button base member and is located operating portion on the button base member, operating portion extends to outside the shell body, the connecting axle wear to locate the button base member and with the transmission of button base member is connected.

Optionally, an anti-slip groove or an anti-slip protrusion is further formed on the end face of the operating portion, which is located outside the outer shell.

Optionally, a first limiting groove and a second limiting groove are formed in the button base body, the button base body is arranged along the sliding groove and slides upwards, the first limiting groove is connected with the outer shell body above the operating button in an adaptive mode, and the second limiting groove is connected with the outer shell body below the operating button in an adaptive mode when the sliding groove slides downwards.

Optionally, a placing groove for installing the sealing ring is formed in the side wall of the installation hole.

Optionally, the number of the placing grooves is at least 2, the placing grooves are arranged along the axial direction of the sliding rod at intervals, and a sealing ring is placed in each placing groove.

Optionally, a connecting hole for the connecting shaft to be inserted into is formed in the sliding rod, and the connecting shaft is in interference fit with the connecting hole.

Optionally, the sealing ring is made of fluororubber.

Optionally, the cross-sectional shape of the sealing ring is X-shaped.

Optionally, the power main unit further includes a protection spring, and the protection spring is disposed between the fixed housing and the sliding switch and sleeved on the sliding rod;

when the protection spring is in a free state, the sliding rod can be stressed to slide; when the protection spring is in an extended state, the position of the sliding switch is locked so that the motor box control structure is kept powered off.

Optionally, the sliding rod is of a cylindrical structure.

Optionally, the fixed housing is made of a polyetheretherketone material.

According to a second aspect of the present invention, there is provided a surgical device comprising an instrument, a handle mechanism and the above-mentioned power master, wherein one end of the power master is movably connected with the handle mechanism and the other end is connected with the instrument.

Compared with the prior art, the motor box comprises an outer shell, a partition plate, a motor box control structure, an operating button, a sliding groove, a sliding switch and a linkage sealing structure. Wherein, the baffle is sealed chamber and holds the chamber with the inside isolation of shell body, holds chamber and external UNICOM. The baffle can withstand a greater gas pressure when the sterilizing gas enters the receiving chamber. Operating button and spout set up on holding the shell body that the chamber corresponds, but operating button atress slides in the spout. The sliding stroke of the operating button is large, and the corresponding operating hand feeling is clear. The motor box control structure and the sliding switch are arranged in the sealing cavity, one end of the linkage sealing structure is matched with the operating button, and the other end of the linkage sealing structure penetrates through the partition plate to be matched with the sliding switch. When high temperature autoclaving, linkage seal structure is under the circumstances of operating button driven, when can guaranteeing the leakproofness in sealed chamber for slide switch who is located sealed intracavity carries out the synchronous linkage and lets motor box control structure switch on-off. On the one hand, the motor box control structure can avoid continuous discharge in a high-temperature state when the power is cut off, and the service life of a lithium battery in the motor box control structure is ensured. On the other hand, the sealing performance is ensured, and the damage to other structures in the sealing cavity in the sterilization process can be avoided.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings.

In the drawings:

FIG. 1 is a schematic diagram of a partial structure of a first cross section of a power host according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of a second cross-section of a power host according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a surgical device according to an embodiment of the present invention.

Reference numerals: 26. a handle mechanism; 27. a power main machine; 2701. an outer housing; 2702. a partition plate; 2703. an operation button; 27031. a button base; 27032. an operation section; 2704. a chute; 2705. a slide switch; 2706. a linkage sealing structure; 27061. a stationary housing; 27062. a connecting shaft; 27063. a seal ring; 27064. a slide bar; 2707. sealing the cavity; 2708. an accommodating chamber; 2709. a first limit groove; 2710. a second limit groove; 2711. a placement groove; 2712. a protection spring; 28. an apparatus.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Referring to fig. 1-2, an embodiment of the present invention provides a power host 27, where the power host 27 may include: outer casing 2701, baffle 2702, motor cartridge control structure, operating button 2703, spout 2704, slide switch 2705 and linkage seal structure 2706. The partition 2702 separates the inside of the outer housing 2701 into a sealing chamber 2707 and an accommodating chamber 2708, wherein the sealing chamber 2707 and the accommodating chamber 2708 are arranged in parallel in the left-right direction. The containing cavity 2708 is communicated with the outside, and when the power main unit 27 is sterilized by high-temperature high-pressure strong corrosive gas, the sterilizing gas can enter the containing cavity 2708 and diffuse.

Compared with an elastic film sheet, the partition plate 2702 has better pressure bearing performance, can better protect the structure in the sealed cavity 2707 in the sterilization process, and avoids other structures in the sealed cavity 2707 from being damaged. The operation button 2703 and the sliding groove 2704 are disposed on the outer housing 2701 corresponding to the accommodating cavity 2708, and the operation button 2703 can slide in the sliding groove 2704 under force. The switch stroke corresponding to the sliding operation is large, the operation hand feeling is clear, and the operation hand feeling of a user can be improved. The motor box control structure and the sliding switch 2705 are arranged in the sealing cavity 2707, one end of the linkage sealing structure 2706 is matched with the operating button 2703, and the other end of the linkage sealing structure 2706 penetrates through the partition 2702 to be matched with the sliding switch 2705. The operating button 2703 is manually slid, and the linkage sealing structure 2706 drives the sliding switch 2705 to synchronously act to change the power-on state of the motor box control structure while maintaining the sealing performance of the sealing cavity 2707.

The power main machine 27 is required to be placed in an environment with the temperature of 56-60 ℃ in a sterilization furnace for 1 hour during sterilization, the power main machine 27 maintains a thermal balance state for one hour at the moment, the lithium battery of the motor box control structure can enable the motor to be in an enabled state when being in an electrified state, and the service life of the lithium battery can be shortened due to discharging in a high-temperature state. From this, with motor box control structure outage when the sterilization, can guarantee the life of lithium cell.

In one example, when sterilization is required, the operation button 2703 is slid downward, and the linkage sealing structure 2706 can be driven by the operation button 2703 to drive the sliding switch 2705 to move, so that the motor box control structure is changed into a power-off state; in another example, when sterilization is required, the motor casing control structure is turned to a power-off state after the operation button 2703 is slid upward.

Referring to fig. 2, in an alternative embodiment of the present invention, the linkage and sealing structure 2706 may include a fixing housing 27061 fixed to the partition 2702, a connecting shaft 27062, a sealing ring 27063, and a sliding rod 27064. The fixed housing 27061 includes a movable cavity, the connecting shaft 27062 penetrates through the partition 2702 and enters the movable cavity, and two ends of the connecting shaft 27062 are respectively connected with the operating button 2703 and the sliding rod 27064. The partition 2702 is provided with a movable hole for the connection shaft 27062 to penetrate through, and the accommodating cavity 2708 and the movable cavity are communicated through the movable hole. And the distance between the movable holes from top to bottom is not less than the switch stroke of the operating button 2703, so that enough movement space is reserved for the connecting shaft 27062 to move up and down.

The fixing housing 27061 is provided with a mounting hole for the sliding rod 27064 to pass through. The sliding rod 27064 is in clearance fit with the mounting hole and fixed with the sliding switch 2705. Specifically, a part of the sliding rod 27064 is connected with the connecting shaft 27062 in the movable cavity, and a part of the sliding rod 27064 is located in the sealed cavity 2707 and fixed with the sliding switch 2705. The sealing ring 27063 is located in the mounting hole and is in press contact with the sliding rod 27064. Wherein the press-contact refers to a press-contact. The sealing ring 27063 wraps the sliding rod 27064, and its outer surface is in press contact with the fixing housing 27061 and its inner surface is in press contact with the sliding rod 27064, so that when the relative position between the sliding rod 27064 and the fixing housing 27061 changes, good sealing performance can be maintained between the sealing ring 27063 and the sliding rod 27064 and between the sealing ring 27063 and the fixing housing 27061. The pressure generated by the pressure contact between the sealing ring 27063 and the sliding rod 27064 can fix the sliding rod 27064 so that it does not fall off from the fixing housing 27061 and the sliding of the sliding rod 27064 is not affected. During sliding of the sliding stem 27064, the sealing ring 27063 can deform to counteract the non-axial force generated by the sliding stem 27064. The sliding rod 27064 is in transmission connection with the operating button 2703 and slides in the same direction, so as to drive the sliding switch 2705 to synchronously move to change the power-on state of the motor box control structure.

In an alternative embodiment, the sliding rod 27064 extends in a direction intersecting with the direction of extension of the connecting shaft 27062. The slide lever 27064 and the connecting shaft 27062 may be disposed perpendicular to each other, and the slide lever 27064 and the operation button 2703 are disposed parallel to each other, so that the slide lever 27064 can slide in the same direction as the operation button 2703. In one example, the sliding rod 27064 may be inserted into the connecting shaft 27062. In another example, the connecting shaft 27062 may be inserted into the sliding bar 27064, a connecting hole into which the connecting shaft 27062 is inserted is formed in the sliding bar 27064, and the connecting shaft 27062 is in interference fit with the connecting hole. Preferably, the interference can be determined by one skilled in the art according to actual conditions so that the connecting shaft 27062 and the sliding rod 27064 can be detachably connected. The detachable connection mode can enable the power main unit 27 to be more convenient to disassemble and assemble, and the performance of the power main unit 27 is further optimized.

Referring to fig. 2, in an alternative embodiment of the invention, a placement groove 2711 for installing the sealing ring 27063 is formed on a side wall of the installation hole. The number of the placement grooves 2711 is at least 2, the placement grooves 2711 are arranged at intervals along the axial direction of the sliding rod 27064, and a sealing ring 27063 is placed in each placement groove 2711.

In the embodiment of the present invention, the arrangement of the placement groove 2711 can improve the structural stability of the sealing ring 27063, and can prevent the sealing ring 27063 from falling off from the fixed housing 27061 in the use process, so that gas enters the sealing cavity 2707 in the sterilization process, thereby damaging the control structure of the motor box. In an example, not less than 2 placement grooves 2711 can be arranged on the side wall of the mounting hole at intervals along the axial direction of the sliding rod 27064, and a sealing ring 27063 is placed in each placement groove 2711, so that the sealing performance of the sealing cavity 2707 when the sliding rod 27064 slides can be further ensured. The probability of a single seal 27063 affecting the seal due to misplacement or defective products is reduced. The number of the sealing rings 27063 is selected based on the pressure generated on the sliding rod 27064 without affecting the synchronous sliding of the sliding rod 27064 along with the operation button 2703. The number of the placement grooves 2711 can be determined by those skilled in the art according to actual requirements, and is not limited herein. Meanwhile, in order to ensure sealability between the seal ring 27063 and the slide bar 27064. Preferably, the sliding rod 27064 may have a cylindrical structure, and correspondingly, the sealing ring 27063 may have an O-shape. The O-ring 27063 and the sliding rod 27064 with a cylindrical structure are convenient for production or purchase, which can reduce the production cost of the power main unit 27. In another example, the sliding rod 27064 may be inserted through the fixing housing 27061 twice. For example, the sliding rod 27064 is inserted into the upper fixed housing 27061 and fixed to the sliding switch 2705, and the sliding rod 27064 extends downward in the extending direction of the movable cavity and is inserted into the lower fixed housing 27061. Thus, the number of the mounting holes can be two, which can reduce the amount of displacement of the slide lever 27064 in the lateral direction when the slide lever is forced to slide. The stability of the linkage seal structure 2706 can be improved.

In an alternative embodiment, the sealing ring 27063 is made of viton. The sealing ring 27063 made of a fluororubber material is excellent in heat resistance, oxidation resistance, corrosion resistance, elongation, and the like. The gas-liquid separator is suitable for long-term use in high-temperature high-pressure strong corrosive gas. The service life and the sealing performance of the sealing ring 27063 are ensured. One skilled in the art can select a corresponding different type of fluoroelastomer based on the combined cost and material. In one example, the cross-sectional shape of the seal ring 27063 may be an X-shape. During the sterilization process, after the high-pressure gas enters the accommodating cavity 2708, a pressure difference is generated between the accommodating cavity 2708 and the sealing cavity 2707, so that the sealing ring 27063 is tightly pressed on the inner wall of the placing groove 2711 of the fixing housing 27061, and at this time, two corresponding end points of the X-shaped sealing ring 27063 are expanded due to the pressure, thereby further enhancing the sealing effect.

In an alternative embodiment of the invention, the fixing housing 27061 is made of polyetheretherketone. The fixing housing 27061 made of the polyetheretherketone material has excellent high temperature resistance, corrosion resistance and the like. The gas-liquid separator is suitable for long-term use in high-temperature high-pressure strong corrosive gas.

In an alternative embodiment of the invention, the sliding switch 2705 includes a contact surface for pressing contact with the motor casing control structure, and the contact surface is a flat surface. Specifically, the motor box control structure may include a control switch for controlling the on/off of the motor box control structure, and the sliding switch 2705 is in press contact with the corresponding control switch, so as to power off the motor box control structure, thereby preventing the lithium battery from having a reduced service life or becoming invalid during a high-temperature sterilization process. Moreover, in order to ensure sufficient contact with the control switch, the contact surface of the sliding switch 2705 and the motor case control structure may be provided as a plane, and the area of the plane may be appropriately enlarged. For example, the area of the plane may be not smaller than the area corresponding to the control switch.

In another alternative embodiment of the invention, the sliding switch 2705 may be directly electrically connected to the motor casing control structure without providing a control switch of the motor casing control structure. For example, the switch type corresponding to the slide switch 2705 may be a contact switch, and the power-on state of the motor box control structure is directly controlled by the slide switch 2705. The sliding switch 2705 is driven to move up and down, so that the metal contact of the sliding switch 2705 is changed to change the power-on state of the motor box control structure.

Referring to fig. 1, in an alternative embodiment of the invention, the operation button 2703 includes a button base 27031 and an operation portion 27032 located on the button base 27031, wherein the button base 27031 and the operation portion 27032 may be an integrated structure, and the operation portion 27032 extends out of the outer housing 2701 to facilitate manual operation. The connecting shaft 27062 passes through the button base 27031 and is in transmission connection with the button base 27031. The end surface of the operating portion 27032 located outside the outer housing 2701 may be further provided with an anti-slip groove or an anti-slip protrusion. The anti-slip protrusions and the operation portion 27032 are of an integrated structure, and both the anti-slip grooves and the anti-slip protrusions can increase the friction force when a user slides the operation button 2703, so that the operation hand feeling of the user can be further improved.

In an alternative embodiment of the invention, the button base 27031 is provided with a first limiting groove 2709 and a second limiting groove 2710, wherein the notch of the first limiting groove 2709 is vertically upward, and the notch of the second limiting groove 2710 is vertically downward. When the operating portion 27032 is slid and the button base 27031 is slid upward along the slide groove 2704, the first stopper groove 2709 moves closer to the outer housing 2701 above the operating button 2703, and the first stopper groove 2709 and the outer housing 2701 above the operating button 2703 are fitted in shape to form a snap-fit. In this way, when the button base 27031 slides downward along the sliding groove 2704, the second limiting groove 2710 moves close to the outer housing 2701 below the operation button 2703, and the second limiting groove 2710 and the outer housing 2701 below the operation button 2703 are matched in shape to form a snap connection.

Referring to fig. 2, in an alternative embodiment of the invention, the power main unit 27 further includes a protection spring 2712, and the protection spring 2712 is disposed between the fixed housing 27061 and the sliding switch 2705 and is sleeved on the sliding rod 27064. One end of the protection spring 2712 may be fixed to the fixing housing 27061. The protection spring 2712 may be freely slidable on the sliding rod 27064. The protection spring 2712 may be a shape memory alloy spring. For example, the protection spring 2712 is in a free state at a room temperature state. In this state, the distance between the sliding rod 27064 and the sliding switch 2705 is too long, and at this time, the length of the protection spring 2712 does not affect the sliding of the sliding rod 27064 up and down, and the sliding rod 27064 can slide under force. When the protection spring 2712 becomes an elongated state after exceeding the phase transition temperature of the protection spring 2712 due to a temperature increase during sterilization. In this state, the protection spring 2712 is pressed against the slide switch 2705. And the slide switch 2705 is fixed in a position to turn the motor casing control structure to the power-off position, whereby the position of the slide switch 2705 can be locked to maintain the motor casing control structure in the power-off state. The protection spring 2712 can prevent the operating button 2703 from sliding due to the contact between surgical instruments in the sterilization furnace, so that the motor box control structure is electrified. Further optimizing the product performance of the power master 27.

To sum up, the embodiment of the present invention discloses a power host 27, where the power host 27 includes an outer casing 2701, a partition 2702, a motor box control structure, an operation button 2703, a sliding slot 2704, a sliding switch 2705, and a linkage sealing structure 2706. The partition 2702 separates the inside of the outer housing 2701 into a sealing chamber 2707 and an accommodating chamber 2708, and the accommodating chamber 2708 is communicated with the outside. The diaphragm 2702 can withstand a larger gas pressure when the sterilizing gas enters the housing chamber 2708. The operation button 2703 and the sliding groove 2704 are disposed on the outer housing 2701 corresponding to the accommodating cavity 2708, the operation button 2703 can be forced to slide in the sliding groove 2704, the motor box control structure and the sliding switch 2705 are disposed in the sealing cavity 2707, one end of the linkage sealing structure 2706 is matched with the operation button 2703, and the other end of the linkage sealing structure 2706 passes through the partition 2702 to be matched with the sliding switch 2705. When high-temperature and high-pressure sterilization is performed, the linkage sealing structure 2706 can ensure the sealing performance of the sealing cavity 2707 under the condition that the linkage sealing structure 2703 is driven, and meanwhile, the sliding switch 2705 positioned in the sealing cavity 2707 is synchronously linked to enable the motor box control structure to be powered on and powered off. On the one hand, the motor box control structure can avoid continuous discharge in a high-temperature state when the power is cut off, and the service life of a lithium battery in the motor box control structure is ensured. On the other hand, ensuring hermeticity may also avoid damage to other structures within the sealed chamber 2707 during sterilization.

Referring to fig. 3, a surgical device according to an embodiment of the present invention is shown, and the surgical device may include an instrument 28, a handle mechanism 26, and a power main 27 according to any of the above embodiments of the present invention, where one end of the power main 27 is movably connected to the handle mechanism 26, and the other end is connected to the instrument 28. The surgical devices in the present invention may be either integrated or split surgical devices. In the integrated surgical device, an instrument 28 is fixedly connected with the power main machine 27; in the split type surgical device, the instrument 28 is detachably connected with the power main machine 27.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As is readily imaginable to the person skilled in the art: any combination of the above embodiments is possible, and thus any combination between the above embodiments is an embodiment of the present invention, but the present disclosure is not necessarily detailed herein for reasons of space.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Claims

1. A power main unit is characterized by comprising an outer shell (2701), a partition plate (2702), a motor box control structure, an operation button (2703), a sliding groove (2704), a sliding switch (2705) and a linkage sealing structure (2706);

the partition plate (2702) separates the interior of the outer shell (2701) into a sealing cavity (2707) and an accommodating cavity (2708), the accommodating cavity (2708) is communicated with the outside, wherein the operating button (2703) and the sliding groove (2704) are arranged on the outer shell (2701) corresponding to the accommodating cavity (2708), the operating button (2703) can slide in the sliding groove (2704) under stress, the motor box control structure and the sliding switch (2705) are arranged in the sealing cavity (2707), one end of the linkage sealing structure (2706) is matched with the operating button (2703), and the other end of the linkage sealing structure passes through the partition plate (2702) and is matched with the sliding switch (2705);

the operation button (2703) is manually slid, and the linkage sealing structure (2706) drives the sliding switch (2705) to synchronously act to change the power-on state of the motor box control structure while keeping the sealing performance of the sealing cavity (2707);

the linkage sealing structure (2706) comprises a fixed shell (27061), a connecting shaft (27062), a sealing ring (27063) and a sliding rod (27064), wherein the fixed shell (27061), the connecting shaft (27062), the sealing ring (27063) and the sliding rod (27064) are fixed on the partition plate (2702);

the fixed shell (27061) comprises a movable cavity, the connecting shaft (27062) penetrates through the partition plate (2702) and enters the movable cavity, two ends of the connecting shaft (27062) are respectively connected with the operating button (2703) and the sliding rod (27064), a mounting hole for the sliding rod (27064) to penetrate is formed in the fixed shell (27061), the sliding rod (27064) is in clearance fit with the mounting hole and is fixed with the sliding switch (2705), and the sealing ring (27063) is located in the mounting hole and is in press contact with the sliding rod (27064);

the sliding rod (27064) is in transmission connection with the operating button (2703) and slides in the same direction to drive the sliding switch (2705) to synchronously act to change the power-on state of the motor box control structure.

2. The power master according to claim 1, wherein an extending direction of the slide lever (27064) intersects with an extending direction of the connecting shaft (27062).

3. The power master according to claim 1, wherein the slide switch (2705) comprises a contact surface for press-contacting the motor casing control structure, the contact surface being planar.

4. The power host of claim 1, wherein the slide switch (2705) is electrically connected to the motor housing control structure, and wherein the slide switch (2705) changes the power on state of the motor housing control structure via sliding contacts.

5. The power main unit according to claim 1, wherein the operation button (2703) comprises a button base (27031) and an operation portion (27032) located on the button base (27031), the operation portion (27032) extends out of the outer housing (2701), and the connecting shaft (27062) is inserted into the button base (27031) and is in transmission connection with the button base (27031).

6. The power main unit according to claim 5, wherein an end surface of the operating portion (27032) located outside the outer housing (2701) is further provided with an anti-slip groove or an anti-slip protrusion.

7. The power main unit according to claim 5, wherein the button base (27031) is provided with a first limiting groove (2709) and a second limiting groove (2710), when the button base (27031) slides upwards along the sliding groove (2704), the first limiting groove (2709) and the outer shell (2701) above the operation button (2703) are adapted to form a clamping connection, and when the button base (27031) slides downwards along the sliding groove (2704), the second limiting groove (2710) and the outer shell (2701) below the operation button (2703) are adapted to form a clamping connection.

8. The power main unit according to claim 1, wherein a placement groove (2711) for mounting the seal ring (27063) is formed in a side wall of the mounting hole.

9. The power main unit according to claim 8, characterized in that the number of the placement grooves (2711) is at least 2, the placement grooves are arranged at intervals along the axial direction of the sliding rod (27064), and a sealing ring (27063) is placed in each placement groove (2711).

10. The power main unit according to claim 1, wherein the sliding rod (27064) is formed with a connection hole into which the connection shaft (27062) is inserted, and the connection shaft (27062) is in interference fit with the connection hole.

11. The power master according to claim 1, characterized in that the sealing ring (27063) is made of viton.

12. The power master according to claim 1, characterized in that the cross-sectional shape of the sealing ring (27063) is X-shaped.

13. The power master according to claim 1, further comprising a protection spring (2712), wherein the protection spring (2712) is disposed between the fixed housing (27061) and the sliding switch (2705), and is sleeved on the sliding rod (27064);

when the protection spring (2712) is in a free state, the sliding rod (27064) can slide under the stress; when the protection spring (2712) is in an extended state, the position of the slide switch (2705) is locked to keep the motor case control structure de-energized.

14. The power master according to claim 1, wherein the sliding rod (27064) is of a cylindrical configuration.

15. The power master according to claim 1, wherein the stationary housing (27061) is made of polyetheretherketone.

16. A surgical device comprising an instrument (28), a handle mechanism (26) and a power master (27) according to any one of claims 1 to 15, wherein one end of the power master (27) is movably connected with the handle mechanism (26) and the other end is connected with the instrument (28).