Electric stapler capable of preventing misfiring

Abstract

The present invention provides an electric stapler for preventing misfiring, comprising a body, a driving assembly disposed inside the body, the driving assembly comprising a rack and a first motor for driving the rack to move, the rack being provided with a protruding portion protruding therefrom; a sensing assembly, the sensing assembly comprising a control panel disposed parallel to the rack and a sensor disposed on the control panel, the sensor being provided with at least two sensors disposed toward the rack, the protruding portion disposed toward the control panel, the sensor being configured to control the first motor to stop the rack from moving when detecting that the protruding portion passes by. The rack of the present invention can move in different working modes, and the travel of the rack can be limited by the sensing assembly to prevent misfiring.

Description

Technical Field

[0001] The invention relates to an electric stapler capable of preventing misfiring, and belongs to the technical field of staplers. Background Art

[0002] According to the different power transmission methods, staplers can be divided into manual and electric. Traditional manual staplers use human power as the power source to control the device, which has high requirements for the doctor's operation. However, manual staplers have problems such as unstable firing force and insufficient anastomosis stroke. Although electric staplers can perform anastomosis effectively, they make it impossible for doctors to feel the suturing process by hand, which increases the uncertainty of the suturing process.

[0003] In view of this, it is indeed necessary to propose improvements to the existing electric stapler to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an electric stapler capable of preventing misfiring.

[0005] To achieve the above-mentioned objectives, the present invention provides an electric stapler that prevents misfiring, comprising a body, a driving assembly being arranged inside the body, the driving assembly comprising a rack and a first motor for driving the rack to move, the rack being provided with a protruding portion; a sensing assembly, the sensing assembly comprising a control board arranged parallel to the rack and a sensor arranged on the control board, the sensors being provided with at least two sensors and arranged toward the rack, the protruding portion being arranged toward the control board, and the sensor being configured to control the first motor to stop the rack from moving when detecting that the protruding portion passes by.

[0006] As a further improvement of the present invention, at least three sensors are provided, and the distance between any two sensors is not equal.

[0007] As a further improvement of the present invention, it further comprises a connecting rod, and the rack is provided with a first sliding groove for the connecting rod to slide relatively.

[0008] As a further improvement of the present invention, the distance between adjacent sensors is smaller than the length of the first sliding groove.

[0009] As a further improvement of the present invention, the sensor and the rack are located in the same plane.

[0010] As a further improvement of the present invention, the sensor is a photosensor.

[0011] As a further improvement of the present invention, the sensing component further includes an identification device, and the identification device is used to identify the signal in the readable information storage medium, so that the first motor drives the rack to move a corresponding distance.

[0012] As a further improvement of the present invention, the sensing component further includes an identification device, and the identification device is used to identify the signal in the readable information storage medium so as to enable part of the sensor to work.

[0013] As a further improvement of the present invention, it also includes a nail magazine assembly, a nail anvil and a transmission assembly, a barrel assembly is provided at the front end of the fuselage, one end of the transmission assembly is used to connect the nail magazine assembly and the nail anvil, and the other end of the transmission assembly is used to connect to the barrel assembly, the rack is arranged in the barrel assembly and connected to the transmission assembly, so that the rack drives the nail magazine assembly and the nail anvil to match through movement.

[0014] As a further improvement of the present invention, a handle is further provided on the body, a firing switch is provided in the handle, and the firing switch is used to control the first motor so that the rack can reciprocate.

[0015] As a further improvement of the present invention, the driving assembly also includes a micro switch. When the connecting rod moves along the first sliding groove to a maximum distance, the first sliding groove drives the connecting rod to trigger the micro switch, and the micro switch is used to control the first motor to stop working.

[0016] The beneficial effects of the present invention are as follows: the rack of the present invention can move in different working modes, and the travel of the rack can be limited by the sensing component to prevent misfiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the induction component of the electric stapler of the present invention.

[0018] Figure 2 It is a schematic diagram of a partially exploded structure of the electric stapler of the present invention.

[0019] Figure 3 It is a structural schematic diagram of part of the driving components and the gear components of the electric stapler of the present invention.

[0020] Figure 4 yes Figure 3 Schematic diagram of the structure from another perspective.

[0021] Figure 5 It is a schematic diagram of the exploded structure of the gear assembly of the electric stapler of the present invention.

[0022] Figure 6 yes Figure 5Schematic diagram of the structure from another perspective.

[0023] Figure 7 It is a structural schematic diagram of part of the driving components and the gear components of the electric stapler of the present invention.

[0024] Figure 8 yes Figure 7 Schematic diagram of the decomposition structure.

[0025] Fig. 9 It is a structural schematic diagram of part of the driving assembly, the gear assembly and the sensing assembly of the electric stapler of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0028] In addition, it should be noted that the terms "comprises," "includes," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0029] like Figures 1 to 9 As shown, the present invention discloses an electric stapler 100 for preventing misfiring, the electric stapler 100 comprises a stapler assembly 101, an anvil 102, a transmission assembly 103 and a body 104, wherein the stapler assembly 101 and the anvil 102 are connected to one end of the transmission assembly 103, the body 104 is an electric device and is mechanically connected to the other end of the transmission assembly 103, the body 104 outputs power to make the transmission assembly 103 produce mechanical motion and drive the stapler assembly 101 and the anvil 102 to perform anastomosis. The transmission assembly 103 can be a transmission rod or other structure capable of transmission, which can be specifically set as needed, and no limitation is made here.

[0030] A barrel assembly 105 and a handle 106 are provided on the body 104, and the barrel assembly 105 is located at the front end of the body 104. A driving assembly 10, a gear assembly 20 and a sensing assembly 30 are provided inside the body 104, wherein the driving assembly 10 is used to output power and includes a rack 11, a first motor, a second motor, a stop member 12 and a micro switch 13, and the rack 11 is arranged in the barrel assembly 105. The driving assembly 10 is mainly connected to the transmission assembly 103 through the rack 11, and the surface of the rack 11 is provided with saw teeth distributed along its extension direction and can move along its extension direction, and the first motor can drive the rack 11 to move through a gear or other structure. It should be noted that the rack 11 is configured to be able to move toward the transmission assembly 103, and the end of the rack 11 away from the transmission assembly 103 is the first end, and the end facing the transmission assembly 103 is the second end. The first motor can drive the rack 11 to move from the first end to the second end, and the first motor can make the rack 11 move in the opposite direction, that is, from the second end to the first end, by rotating in the opposite direction, which is equivalent to driving the rack 11 to reciprocate in the direction from the first end to the second end.

[0031] To facilitate operation, a firing switch 107 is provided in the handle 106. The firing switch 107 may include a forward gear and a reverse gear and is used to control the first motor so that the rack 11 moves toward the first end or the second end, which is equivalent to controlling the rack 11 to move forward or backward.

[0032] In order to quantify the distance moved by the rack 11, a first slide groove 111, a second slide groove 112 and a third slide groove 113 of different lengths are provided on the rack 11, wherein the first slide groove 111, the second slide groove 112 and the third slide groove 113 are parallel to each other, the length of the first slide groove 111 is greater than the length of the second slide groove 112, the length of the second slide groove 112 is greater than the length of the third slide groove 113, and the second slide groove 112 is arranged between the first slide groove 111 and the third slide groove 113, that is, the first slide groove 111, the second slide groove 112 and the third slide groove 113 are arranged in sequence and their lengths decrease in sequence.

[0033] like Figure 5 and Figure 6As shown, the gear assembly 20 includes a connecting rod 21, a lever 22 and a stopper 23, wherein the connecting rod 21 is partially disposed in the first slide groove 111, the second slide groove 112 or the third slide groove 113, a rotating shaft 211 is disposed in the connecting rod 21, the rotating shaft 211 is located outside the rack 11, the connecting rod 21 can rotate around the rotating shaft 211, and the rotating shaft 211 is parallel to the rack 11, the rack 11 is perpendicular to the rotation plane of the connecting rod 21, and the connecting rod 21 can be switched in sequence in the first slide groove 111, the second slide groove 112 or the third slide groove 113 by rotating. Taking the first slide groove 111 as an example, when the connecting rod 21 is disposed in the first slide groove 111, the rack 11 moves relative to the connecting rod 21, so that the connecting rod 21 moves relative to the first slide groove 111, and the maximum displacement of the rack 11 is the length of the first slide groove 111. The connecting rod 21 can change the maximum displacement of the rack 11 by switching to the second sliding groove 112 or the third sliding groove 113 , which is equivalent to switching the displacement of the driving assembly 10 .

[0034] In particular, to facilitate the switching of the connecting rod 21 , the first sliding groove 111 , the second sliding groove 112 and the third sliding groove 113 are flush at the first end of the rack 11 , and the shift assembly 20 is preferably arranged at the first end of the rack 11 .

[0035] It is understandable that the connecting rod 21 can switch in the first slide slot 111, the second slide slot 112 or the third slide slot 113 in sequence, and there is no boundary between the first slide slot 111, the second slide slot 112 and the third slide slot 113, that is, the first slide slot 111 is partially connected to the second slide slot 112, and the second slide slot 112 is partially connected to the third slide slot 113. Preferably, the length of the connecting portion between the first slide slot 111 and the second slide slot 112 is equal to the length of the second slide slot 112, and the length of the connecting portion between the second slide slot 112 and the third slide slot 113 is equal to the length of the third slide slot 113. Of course, a partial entity can be set between the first slide slot 111 and the second slide slot 112, and between the second slide slot 112 and the third slide slot 113 to distinguish the first slide slot 111, the second slide slot 112 and the third slide slot 113, and at the same time, it can prevent the connecting rod 21 from being mistakenly deviated to other slide slots when moving relative to the rack 11, and there is no specific limitation.

[0036] In order to correctly trigger the connecting rod 21 to rotate and make the connecting rod 21 accurately rotate to the first sliding groove 111, the second sliding groove 112 or the third sliding groove 113, the connecting rod 21 can be controlled manually or automatically.

[0037] Taking automatic control through the second motor as an example, the second motor can be connected to the rotating shaft 211 in a transmission manner. The second motor drives the rotating shaft 211 to rotate, so that the connecting rod 21 rotates, so that the connecting rod 21 can switch between the first sliding groove 111, the second sliding groove 112 or the third sliding groove 113.

[0038] Taking manual control through the lever 22 as an example, the lever 22 can be connected to the connecting rod 21, that is, one end of the connecting rod 21 is set in the first slide groove 111, the second slide groove 112 or the third slide groove 113, and the other end is connected to the lever 22. The rotating shaft 211 is set between the lever 22 and the rack 11. The rotating shaft 211 passes through the connecting rod 21 and is pivotally connected to the lever 22. By manually moving the lever 22, the lever 22 can be rotated relative to the rotating shaft 211, thereby driving the connecting rod 21 to rotate around the rotating shaft 211.

[0039] Combination Figure 5 and Figure 6 As shown, further, the limiter 23 is used to limit and fix the position of the lever 22 after the lever 22 is rotated, the rotating shaft 211 passes through the connecting rod 21 and the lever 22 in sequence and is pivotally connected to the limiter 23, and three recessed portions 221 are provided on the lever 22 toward the limiter 23 to correspond to the three gears of the first slide groove 111, the second slide groove 112 and the third slide groove 113 respectively, and the limiter 23 is provided with an elastic member 231 for cooperating with the recessed portion 221, and the elastic member 231 can be composed of a convex column and a spring, the spring is used to make the convex column pop outward, and the elastic member 231 can produce elastic deformation toward the lever 22. When the lever 22 is moved, the edge of the recessed portion 221 drives the elastic member 231 to produce elastic deformation, and the elastic member 231 retracts into the limiter 23. When the lever 22 is switched to another recessed portion 221 and aligned with the elastic member 231, the elastic member 231 is released into the recessed portion 221, so that the position of the lever 22 is fixed. At the same time, the position of the connecting rod 21 is fixed accordingly, that is, the lever 22 can make the elastic member 231 cooperate with different recessed portions 221 to limit the position, so that the lever 22 has the gear adjustment function. Preferably, the three recessed portions 221 are arranged in an arc shape with the rotating shaft 211 as the center.

[0040] In another preferred embodiment of the present invention, the gear assembly 20 further includes an indicator light 24, which is used to indicate the current gear position. The indicator light 24 may include three LED lamp beads, corresponding to the three gear positions of the first slide 111, the second slide 112 and the third slide 113 respectively. The indicator light 24 may be electrically connected to the second motor, and the gear position of the connecting rod 21 may be calculated by judging the rotation amount of the second motor, and displayed by the LED lamp beads. Alternatively, in other embodiments, the current gear position of the connecting rod 21 may also be judged by detecting the contact between the elastic member 231 and different recessed portions 221 through a photosensitive element, which may be specifically set as needed, and no limitation is made here.

[0041] like Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, as a preferred embodiment of the present invention, in order to prevent the connecting rod 21 from colliding with the end of the first slide groove 111 when it moves relative to the first slide groove 111, for example, and damaging the mechanical structure, it is necessary to stop the first motor from working in time. To this end, a stopper 12 pivotally connected to the rotating shaft 211 can be sleeved on the outer side of the connecting rod 21. When the connecting rod 21 moves along the extension direction of the rack 11, the connecting rod 21 drives the stopper 12 to move along the axial direction of the rotating shaft 211. The micro switch 13 can be set in the movement direction of the stopper 12 at this time, so that the stopper 12 can touch the micro switch 13 and make the micro switch 13 control the first motor to stop working. In particular, a fourth slide groove 222 for accommodating part of the connecting rod 21 is provided in the lever 22. The extension direction of the fourth slide groove 222 is consistent with the extension direction of the rotating shaft 211 and the rack 11. The connecting rod 21 can move along the fourth slide groove 222 and drive the stopper 12 to slide along the rotating shaft 211 to trigger the micro switch 13. When the gear shift is required, the lever 22 can drive the connecting rod 21 to rotate through the side wall of the fourth sliding slot 222 .

[0042] like Figure 1 and Fig. 9 As shown, in order to further enhance the safety of the electric stapler 100 during operation and prevent misfiring or overfiring, the sensing component 30 is used to detect the displacement of the rack 11 and brake in time. Specifically, the sensing component 30 includes a control board 31, a sensor 32, an identification device (not numbered), and a power switch 33, wherein the control board 31 is arranged parallel to the rack 11, and the first motor, the second motor, the micro switch 13, the indicator light 24, the sensor 32, the identification device, the safety switch, and the power switch 33 are all electrically connected to the control board 31, and when the power switch 33 is turned on, other electronic components can work under the control of the control board 31.

[0043] When the forward gear of the firing switch 107 is pressed, the nail magazine assembly 101 and the nail seat 102 continue to match. When the nail magazine assembly 101 and the nail seat 102 match to the maximum position, after pressing the safety switch, press the forward gear of the firing switch 107 again. At this time, the cutting knife in the nail magazine assembly 101 and the nail seat 102 starts cutting. After the cutting is completed, when the forward gear of the firing switch 107 is released, the cutting knife starts to retreat to the initial position.

[0044] There are multiple sensors 32 and they are arranged toward the rack 11, and the multiple sensors 32 are linearly distributed along the movement direction of the rack 11, and the sensors 32 and the rack 11 are located in the same plane. The rack 11 is provided with a protrusion 114 arranged toward the sensor 32. When the rack 11 moves, the protrusion 114 passes through different sensors 32. The sensor 32 is preferably a photosensitive sensor. When any sensor 32 detects a signal of the protrusion 114 passing by, the sensor 32 feeds back the signal to the control board 31, so that the control board 31 controls the first motor to stop working, that is, the rack 11 stops moving. It should be noted that when there are more than three sensors 32, the distance between any two sensors 32 is not equal, and the multiple sensors 32 do not work at the same time. By controlling different combinations of sensors 32 to work, the maximum displacement of the rack 11 is controlled. At this time, the position of the sensor 32 is equivalent to the threshold of the displacement of the rack 11, and the rack 11 can only move within the range of the sensor 32. It is understandable that during the operation of the electric stapler 100, when the rack 11 stops moving due to the action of the sensor 32, the electric stapler 100 can be fired again to resume working, thereby providing the operator with a distance reminder to prevent excessive force in a single operation.

[0045] In other embodiments of the present invention, in order to prevent the connecting rod 21 from hitting the side wall of the first slide groove 111, for example, the maximum spacing between the sensors 32 is less than the length of the first slide groove 111, that is, when the connecting rod 21 is in any gear position, the maximum spacing between the activated sensors 32 is less than the length of the corresponding slide groove.

[0046] Different sensors 32 can form different working modes. The working modes can be set in advance and form different programs stored in the readable information storage medium. The recognition device in the control panel 31 can recognize the signals and information in the readable information storage medium and activate a specific program, so that some sensors 32 work or the first motor drives the rack 11 to move a corresponding distance. The specific settings can be made according to needs and are not limited here. The above-mentioned readable information storage medium can be in the form of a chip or an IC card, etc. Different readable information storage media can store different programs. Of course, in other embodiments of the invention, Bluetooth or wireless methods can also be used to switch programs.

[0047] In summary, the present invention can switch the travel of the rack 11 through the shift assembly 20 to achieve matching of different distances, and can enable the sensing assembly 30 to limit the travel of the rack 11 by activating different programs to prevent misfiring.

[0048] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. An electric stapler for preventing misfiring, characterized in that: The fuselage comprises a body, wherein the fuselage has A driving assembly, the driving assembly comprising a rack and a first motor for driving the rack to move, the rack being provided with a protruding portion; A sensing component, the sensing component comprises a control board arranged parallel to the rack and a sensor arranged on the control board, at least two sensors are provided and arranged toward the rack, and at least two sensors are linearly distributed along the running direction of the rack; the protrusion is arranged toward the sensor, and the sensor is configured to control the first motor to stop the rack from moving when detecting that the protrusion passes by; A connecting rod, wherein the rack is provided with a first sliding groove for the connecting rod to slide relatively; The driving assembly also includes a micro switch. When the connecting rod moves along the first sliding groove to a maximum distance, the first sliding groove drives the connecting rod to trigger the micro switch. The micro switch is used to control the first motor to stop working.

2. The electric stapler for preventing misfiring according to claim 1, characterized in that: There are at least three sensors, and the distance between any two sensors is not equal.

3. The electric stapler for preventing misfiring according to claim 1, characterized in that: The distance between adjacent sensors is smaller than the length of the first slide slot.

4. The electric stapler for preventing misfiring according to claim 1, characterized in that: The sensor and the rack are located in the same plane.

5. The electric stapler for preventing misfiring according to claim 1, characterized in that: The sensor is a photosensor.

6. The electric stapler for preventing misfiring according to claim 1, characterized in that: The sensing component further includes an identification device, which is used to identify a signal in a readable information storage medium so that the first motor drives the rack to move a corresponding distance.

7. The electric stapler for preventing misfiring according to claim 1, characterized in that: The sensing component also includes an identification device, which is used to identify signals in the readable information storage medium to enable part of the sensor to work.

8. The electric stapler for preventing misfiring according to claim 1, characterized in that: It also includes a nail magazine assembly, a nail anvil and a transmission assembly. A barrel assembly is provided at the front end of the fuselage. One end of the transmission assembly is used to connect the nail magazine assembly and the nail anvil, and the other end of the transmission assembly is used to connect to the barrel assembly. The rack is arranged in the barrel assembly and connected to the transmission assembly, so that the rack drives the nail magazine assembly and the nail anvil to match through movement.

9. The electric stapler for preventing misfiring according to claim 8, characterized in that: The body is also provided with a handle, in which a firing switch is provided. The firing switch is used to control the first motor so that the rack can reciprocate.

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