An anastomat with a one-shot firing alarm

Abstract

The present application provides a kind of anastomat with disposable firing alarm device, the anastomat includes nail bin, nail magazine base, push nail slider, first pressure sensor, signal processor and alarm device, the first pressure sensor is fixedly installed in the tail of the nail magazine base one side, the initial position of the push nail slider is located in the tail of the nail bin, the signal processor and the alarm device are located in the inside of the anastomat, the push nail slider in initial position extrudes the first pressure sensor, the first pressure sensor is extruded and extrusion signal is transmitted to the alarm device by the signal processor.When nail magazine is the nail magazine that has been fired, anastomat will alarm to prompt operator should replace new nail magazine, compared with mechanical disposable firing safety device, whether nail magazine is fired can be more intuitive display.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and in particular to a stapler with a disposable firing alarm device. Background Technology

[0002] The staple cartridge of the laparoscopic stapler is a sterile, single-use product that can only be fired once. Repeated firing can prevent the cut tissue from being properly sutured, leading to surgical accidents. Current technology uses mechanical devices to prevent the staple cartridge from firing a second time. However, this mechanical single-use firing safety device requires the operator to close the staple cartridge, press the stapler safety, and pull the trigger. Only by observing the resistance to firing can the operator determine whether the staple cartridge has already been fired, making direct judgment impossible.

[0003] Since laparoscopic anastomosis devices are surgical instruments, surgical time is extremely precious for operators, especially doctors. If the operator discovers that the device has been fired only when they are about to fire after completing a series of preparations, it will waste valuable surgical time and affect the doctor's mood during the surgery.

[0004] Therefore, a new stapler with a one-time firing alarm function needs to be proposed. Summary of the Invention

[0005] This invention provides a stapler with a disposable firing alarm device, which at least solves the technical problem in the prior art where the operator must close the staple cartridge, press the stapler safety and pull the trigger, and only determine whether the staple cartridge has been fired based on the phenomenon of firing obstruction, and cannot make a direct judgment.

[0006] The present invention provides a stapler with a disposable firing alarm device. The stapler includes a staple cartridge, a staple cartridge base, a staple pusher slider, a first pressure sensor, a signal processor, and an alarm device. The first pressure sensor is fixedly installed on one side of the tail of the staple cartridge base. The initial position of the staple pusher slider is located at the tail of the staple cartridge. The signal processor and the alarm device are located inside the stapler. The staple pusher slider in the initial position squeezes the first pressure sensor, and the squeezed first pressure sensor transmits a squeeze signal to the alarm device by the signal processor.

[0007] Optionally, when the pusher slider in the initial position presses against the first pressure sensor, it means that the stapler is in a non-firing state. The pressing signal indicates that the pusher slider is in the position when the stapler has not yet been fired, and the alarm device does not issue an alarm signal.

[0008] Optionally, the pusher slider is provided with a slot support plate, the staple cartridge is provided with a slot, the slot support plate of the pusher slider is located in the slot of the staple cartridge, and the stapler also includes a cutting blade. The pusher slider slides along the staple cartridge from the proximal end to the distal end under the push of the cutting blade.

[0009] Optionally, the first pressure sensor is fixedly installed on the inner side of one side of the tail of the nail cartridge base. The first pressure sensor is pressed against the nail pusher slider located in the initial position. When the nail pusher slider slides along the nail cartridge from the proximal end to the distal end under the push of the cutting blade, the pressing between the first pressure sensor and the nail pusher slider disappears. The first pressure sensor, which can no longer sense the pressing, will transmit the no-pressing signal to the alarm device through the signal processor to generate an alarm.

[0010] Optionally, the above-mentioned stapler also includes a second pressure sensor, which is fixedly installed on the inner side of the other side of the tail of the staple cartridge base. The second pressure sensor and the first pressure sensor are symmetrically distributed on the inner side of the tail of the staple cartridge base. When the staple pusher is in the initial position, it simultaneously compresses the second pressure sensor and the first pressure sensor.

[0011] Optionally, the inner side of the other side of the tail of the nail box base also includes a protrusion structure. The height of the protrusion structure is the same as that of the first pressure sensor protruding from the inner side of the nail box base. When the nail pusher slider is in the initial position, it simultaneously compresses the first pressure sensor and the protrusion structure.

[0012] Optionally, the first pressure sensor mentioned above is a thin-film pressure sensor.

[0013] Optionally, the first pressure sensor and the second pressure sensor described above are circular or square.

[0014] Optionally, the alarm device mentioned above may be an alarm light or a buzzer.

[0015] Optionally, the pressure on the first pressure sensor when the pusher slider is not in the initial position is less than the pressure on the first pressure sensor when the pusher slider is in the initial position.

[0016] To address the aforementioned shortcomings of existing technologies, this invention provides a stapler with a disposable firing alarm device. When the staple cartridge has already been fired, the stapler will sound an alarm to prompt the operator to replace it with a new cartridge. Compared to mechanical disposable firing safety devices, this provides a more intuitive indication of whether the staple cartridge has been fired, while also saving surgical time for both doctors and patients, thus promoting patient recovery. This invention is designed to be used simultaneously with a mechanical disposable firing safety device. Attached Figure Description

[0017] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of the invention are illustrated in the drawings by way of example and not limitation, wherein:

[0018] Figure 1 A schematic diagram of an optional stapler equipped with a stapler cartridge is provided for an embodiment of the present invention;

[0019] Figure 2 A front view schematic diagram of an optional nail box structure provided in an embodiment of the present invention;

[0020] Figure 3 A schematic diagram of an optional staple cartridge structure provided in an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of an optional staple cartridge provided for an embodiment of the present invention;

[0022] Figure 5 A schematic diagram of an optional push pin slider provided in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of an optional nail box base provided for an embodiment of the present invention;

[0024] Figure 7 A schematic diagram of an optional nail box base equipped with a pressure sensor provided for an embodiment of the present invention;

[0025] Figure 8 A diagram showing the assembly positions of an optional staple cartridge, staple pusher slider, staple cartridge base, and pressure sensor, provided for an embodiment of the present invention.

[0026] Figure 9 A schematic diagram of a suboptimal solution provided by an embodiment of the present invention, in which a protrusion on the nail box base is used to replace one of the pressure sensors;

[0027] Figure 10 A schematic diagram of a suboptimal solution provided by an embodiment of the present invention, in which a protruding part mounted on the nail box base is used to replace one of the pressure sensors;

[0028] Figure 11 A schematic diagram of an optional stud cartridge with an added protrusion structure provided for an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of an optional structure for replacing the aforementioned pressure sensor with a staple cartridge protrusion and a thin-film pressure sensor, provided as an embodiment of the present invention. Detailed Implementation

[0030] The principles and spirit of the invention will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are provided merely to enable those skilled in the art to better understand and implement the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided to make this disclosure more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0031] This implementation example Figures 1 to 12 As shown.

[0032] like Figures 1 to 8 As shown, the present invention provides a stapler with a disposable firing alarm device. The stapler includes a staple cartridge 11, a staple cartridge base 12, a staple pusher slider 15, a first pressure sensor 16, a signal processor, and an alarm device. The first pressure sensor 16 is fixedly installed on one side of the tail of the staple cartridge base 12. The initial position of the staple pusher slider 15 is located at the tail of the staple cartridge 11. The signal processor and the alarm device are located inside the stapler. When the staple pusher slider 15 is in the initial position, it presses the first pressure sensor 16. The pressed first pressure sensor 16 transmits a compression signal from the signal processor to the alarm device.

[0033] In this embodiment, the first pressure sensor 16 and the second pressure sensor 17 are fixedly installed (e.g., snap-fitted or welded) at the tail of the nail cartridge base 12. The initial position of the pusher slider 15 is located at the tail of the nail cartridge 11. The blade groove support piece 151 of the pusher slider 15 is located in the blade groove 1108 of the nail cartridge 11. The first pusher piece 152, the second pusher piece 153, the third pusher piece 154, and the fourth pusher piece 155 of the pusher slider 15 are respectively located in the first pusher slider moving groove 1109, the second pusher slider moving groove 1112, the third pusher slider moving groove 1110, and the fourth pusher slider moving groove 1111 of the nail cartridge 11. During the firing of the staple cartridge, the pusher slider 15 slides from the proximal end to the distal end along the center line 1107 of the staple cartridge under the push of the cutting blade 14. The staple cartridge 11 is engaged with the first staple groove 1207, the second staple groove 1208, the third staple groove 1209, the fourth staple groove 1210, the fifth staple groove 1211, and the sixth staple groove 1212 of the staple cartridge base 12 through the first locking position 1113, the second staple groove 1114, the third staple groove 1115, the fourth staple groove 1116, the fifth staple groove 1117, and the sixth staple groove 1118, respectively. The staple cartridge base 12 is riveted to the staple abutment 13, which is installed on the staple cartridge 1 by riveting. The cutting blade 14 is installed on the staple cartridge 1 by snapping and can move from the proximal end to the distal end along the blade groove 1108 of the staple cartridge 11. The staple cartridge 11, staple cartridge base 12, staple anchor 13, cutting blade 14, staple pusher slider 15, first pressure sensor 16, and second pressure sensor 17 are all components of the staple cartridge 1. The connection methods of the staple anchor 13 and the cutting blade 14 to the staple cartridge are existing technologies.

[0034] The width from the middle section 1101 of the first nail cartridge to the middle section 1102 of the second nail cartridge is L1, and the width from the rear section 1103 of the first nail cartridge to the rear end section 1104 of the second nail cartridge is L2; ​​L1 is greater than L2; the width from the inner side 1203 of the first nail cartridge base to the inner side 1204 of the second nail cartridge base is L3; the nail cartridge 11 is a long and narrow injection molded part, and it is provided with a cutting groove 1108, which is easy to deform inward. The nail cartridge base is a metal part. In order to ensure that the nail cartridge 11 and the nail cartridge base 12 fit accurately, the two are transition fit, that is, L1 is greater than L3. Without the pusher slider 15, the nail cartridge 11 deforms towards the middle under the pressure of the inner side 1203 of the first nail cartridge base and the inner side 1204 of the second nail cartridge base of the nail cartridge base 12. The cutting groove 1108 is reduced in size due to the pressure, and the cutting groove at the tail end of the nail cartridge is reduced in size the most. When the pusher slider 15 is in its initial position, which is the tail section of the nail cartridge 11, the pusher slider blade support plate 151 resets the blade groove 1208 to its designed size, and the first nail cartridge rear section surface 1103 and the second nail cartridge rear end surface 1104 move to both sides to return to their designed size. In this design, the tail end of the nail cartridge base is equipped with a first pressure sensor 16 and a second pressure sensor 17. When the pusher slider 15 is not in its initial position, the width of the tail section of the blade groove 1108 of the nail cartridge 11 decreases due to the compression of the nail cartridge. Correspondingly, the first nail cartridge rear section surface 1103 and the second nail cartridge rear end surface 1104 move towards the nail cartridge centerline 1107 compared to the designed value. The first pressure sensor 16 and the second pressure sensor 17 move towards the nail cartridge centerline 1107. The rear end face 1104 of the staple cartridge and the rear section face 1103 of the first staple cartridge do not contact each other, so the pressure sensor is not under force. When the pusher slider 15 is in the initial position, the width of the tail section of the slot 1108 of the staple cartridge 11 returns to its designed size due to the support of the slot support piece 151 of the pusher slider 15. The rear section face 1103 of the first staple cartridge and the rear end face 1104 of the second staple cartridge move to the sides to return to their designed size. At this time, the rear end face 1104 of the second staple cartridge and the rear section face 1103 of the first staple cartridge exert pressure on the first pressure sensor 16 and the second pressure sensor 17, respectively. The pressure sensor transmits the detected signal to the signal processor on the stapler through the circuit. The signal processor is connected to the disposable firing alarm light 21. When the pressure sensor detects pressure, the disposable firing alarm light 21 is in a constantly off state. When the pressure sensor detects zero pressure output, the disposable firing alarm light 21 is lit to alert the operator.

[0035] Furthermore, when the pusher slider 15, located in its initial position, presses against the first pressure sensor 16, it indicates that the stapler is in a non-firing state. The pressing signal indicates that the pusher slider 15 is in the position when the stapler has not yet been fired, and the alarm device does not issue an alarm signal.

[0036] Furthermore, the aforementioned pusher slider 15 is provided with a slot support plate 151, the aforementioned staple cartridge 11 is provided with a slot 1108, the aforementioned slot support plate 151 of the pusher slider 15 is located in the aforementioned slot 1108 of the aforementioned staple cartridge 11, the aforementioned staple stapler also includes a cutting blade 14, the aforementioned pusher slider 15 slides along the aforementioned staple cartridge 11 from the proximal end to the distal end under the push of the aforementioned cutting blade 14.

[0037] Furthermore, the first pressure sensor 16 is fixedly installed on the inner side of one side of the tail of the nail cartridge base 12. The first pressure sensor 16 is pressed against the nail pusher slider 15 located in the initial position. When the nail pusher slider 15 slides along the nail cartridge 11 from the proximal end to the distal end under the push of the cutting blade 14, the pressing between the first pressure sensor 16 and the nail pusher slider 15 disappears. The first pressure sensor 16, which can no longer sense the pressing, transmits the no-pressing signal to the alarm device through the signal processor to generate an alarm.

[0038] Furthermore, the above-mentioned stapler also includes a second pressure sensor 17, which is fixedly installed on the inner side of the other side of the tail of the staple cartridge base 12. The second pressure sensor 17 and the first pressure sensor 16 are symmetrically distributed on the inner side of the tail of the staple cartridge base 12. When the staple pusher slider 15 is in the initial position, it simultaneously compresses the second pressure sensor 17 and the first pressure sensor 16.

[0039] Furthermore, the inner side of the other side of the tail of the aforementioned nail cartridge base 12 also includes a protruding structure. The height of the protruding structure is consistent with that of the first pressure sensor 16 protruding from the inner side of the nail cartridge base 12. When the nail pusher slider 15 is in its initial position, it simultaneously compresses the first pressure sensor 16 and the protruding structure. Figure 9 As shown, the nail cartridge base 12 also includes a first protrusion 1213, which replaces the second pressure sensor 17. The first pressure sensor 16 is used to detect whether the nail pusher slider 15 is in the initial position. The first protrusion 1213 can also be designed on the other side of the nail cartridge base 12 to replace the first pressure sensor 16. In this case, the second pressure sensor 17 remains unchanged, and the first protrusion 1213 is part of the nail cartridge base 12.

[0040] A secondary preferred embodiment of this technical solution is to replace one of the pressure sensors with a protruding structure on the staple cartridge base, or a protruding part that can be mounted on the staple cartridge base, with the height of the protrusion matching the height of the pressure sensor protruding from the inner side of the staple cartridge base. By replacing the protruding structure or protruding part on the staple cartridge base, the staple cartridge can reduce the use of one pressure sensor, thus reducing production costs. Because the height of the protrusion and the pressure sensor are the same, the pressure on the tail section of the staple cartridge facing the protrusion and the pressure sensor is consistent, and a single pressure sensor can be used to detect whether the staple pusher slider is in its initial position.

[0041] Furthermore, the aforementioned first pressure sensor 16 is a thin-film pressure sensor. Figure 11 To increase the number of staple cartridges with raised structures, Figure 12 To accommodate the structure of the staple cartridge protrusion and thin-film pressure sensor replacing the aforementioned pressure sensor, the width from the rightmost side of the second protrusion 1119 to the leftmost side of the third protrusion 1120 is L4. When the staple pusher slider 15 is in its initial position, i.e., the tail section of the staple cartridge 11, the staple pusher slider blade support plate 151 resets the blade groove 1208 to its designed size, and the second protrusion 1119 moves to the right along with the rear end face 1104 of the second staple cartridge; the third protrusion 1120 moves to the left along with the rear end face 1103 of the first staple cartridge. The second protrusion 1119 contacts the first thin-film pressure sensor 19, generating pressure on it; the third protrusion 1120 contacts the second thin-film pressure sensor 20, generating pressure on it. When the pusher slider 15 is in its initial position, i.e., the tail section of the staple cartridge 11, the third protrusion 1120 moves to the left along with the rear end face 1103 of the first staple cartridge. The second protrusion 1119 contacts the first thin-film pressure sensor 19, generating pressure on it. After the staple slider 15 moves away from its initial position, the tail groove 1108 of the staple cartridge 11 narrows due to pressure from the inner surfaces 1203 and 1204 of the first and second staple cartridges of the staple cartridge 12. The second protrusion 1119 moves towards the center along with the rear end face 1104 of the second staple cartridge and no longer contacts the first thin-film pressure sensor 19. The third protrusion 1120 moves towards the center along with the rear end face 1103 of the first staple cartridge and no longer contacts the second thin-film pressure sensor 20. Both the first and second thin-film pressure sensors 19 and 20 are no longer under pressure. The pressure sensors transmit the detected signals to the signal processor on the stapler through the circuit. The signal processor is connected to the disposable alarm light 21. When the pressure sensor detects pressure, the disposable alarm light 21 remains off; when the pressure sensor detects zero pressure output, the disposable alarm light 21 illuminates to alert the operator.

[0042] Furthermore, the first pressure sensor 16 and the second pressure sensor 17 described above are circular or square.

[0043] Furthermore, the aforementioned alarm device is an alarm light or a buzzer.

[0044] Furthermore, when the pusher slider 15 is not in the initial position, the pressure on the first pressure sensor 16 is less than the pressure on the first pressure sensor 16 when the pusher slider 15 is in the initial position.

[0045] Figure 10 A suboptimal solution is to replace one of the pressure sensors with a protruding part mounted on the nail box base.

[0046] Figure 10 In the middle, the protruding part 18 is fixedly connected to the nail box base 12, replacing the second pressure sensor 17, and the first pressure sensor 16 is used to detect whether the pusher slider 15 is in the initial position.

[0047] In the most preferred embodiment of the present invention, the pressure sensor can be replaced by a thin-film pressure sensor, and a protruding structure is added at the corresponding position of the staple cartridge tail section to achieve the same purpose.

[0048] When the staple pusher slider is not in its initial position, the pressure sensor and the rear protrusion of the staple cartridge are not in contact, and the pressure sensor is not under pressure. When the staple pusher slider is in its initial position, the rear protrusion of the staple cartridge presses the sensor to both sides, generating pressure on the pressure sensor. The pressure sensor transmits the detection result to the signal processor on the stapler through a circuit, and the signal processor is connected to the alarm light. When the pressure sensor detects pressure, the alarm light remains off; when the pressure sensor detects zero pressure output, the alarm light illuminates to alert the operator.

[0049] Another alternative to this invention is that multiple pressure sensors can be used instead of a single sensor. The pressure sensors can be circular, square, or other shapes, provided the total thickness of the pressure sensors meets the usage requirements. The pressure sensors can also be installed in other ways, ensuring they are fixed in place to prevent shaking or falling. The alarm light on the anastomosis device can be replaced by other alarm devices that effectively alert the operator, such as a buzzer.

[0050] Alternatively, by changing the height of the pressure sensor or the height of the boss, the pressure sensor can be subjected to very little pressure when the pusher slider is not in the initial position, and the pressure sensor pressure can be increased when the pusher slider is in the initial position. A pressure threshold can be used to distinguish whether the pusher slider of the nail cartridge is in the initial position.

[0051] The pusher slider is a key component of the staple cartridge. When the staple cartridge is not fired, the pusher slider is in its initial position. When the staple cartridge is fired, the cutting blade in the cartridge pushes the pusher slider from the proximal end to the distal end, moving it away from its initial position. After the staple cartridge is fully fired, the operator resets the stapler, and the staple cartridge cutting blade returns to its original position. Because the pusher slider is a single-use component and not fixedly connected to the cutting blade, it remains in its fired position after the cutting blade retracts. Therefore, whether the pusher slider is in its initial position can indicate whether the staple cartridge has been fired.

[0052] This embodiment relates to a stapler cartridge and a stapler. The stapler cartridge includes a staple compartment, a stapler cartridge base, a staple anchor, a cutting blade, a staple pusher slider, and a pressure sensor. The stapler includes a signal processor and an alarm device mounted on it; here, this is an alarm light, but other visual or audible alarm devices such as a buzzer can also be used to alert the operator. The staple compartment has a blade groove and a staple pusher slider movement groove. The staple pusher slider is mounted on the staple compartment from the bottom, initially positioned at the tail end of the staple compartment, and can slide along the center line of the staple compartment. The staple compartment is engaged with a slot on the stapler cartridge base via a latch. The stapler cartridge base is riveted to the staple anchor. The cutting blade is engaged with the stapler cartridge. The stapler can slide along the stapler cartridge slot; as the cutting blade advances, it pushes the staple pusher slider forward; a pressure sensor is installed inside the rear section of the stapler cartridge base; a signal processor is located on the stapler; an alarm light is located on the stapler; the pressure sensor is connected to the signal processor via a circuit, and the signal processor is connected to the alarm device; when the staple pusher slider is not in its initial position, the pressure sensor and the rear surface of the stapler cartridge are not in contact, and the pressure sensor is not under force; when the staple pusher slider is in its initial position, the rear surface of the stapler cartridge presses the sensor to both sides, generating pressure on the pressure sensor; the pressure sensor transmits the detection result to the signal processor on the stapler via a circuit, and the signal processor is connected to the alarm light. When the pressure sensor detects pressure, the alarm light is always off; when the pressure sensor detects zero pressure output, the alarm light illuminates to alert the operator.

[0053] In this technical solution, the distal end is the end furthest from the stapler when the staple cartridge is assembled onto the stapler, and the proximal end is the end closest to the stapler. When the operator holds the stapler and the distal end of the staple cartridge faces forward, the direction to the left of the operator is the left side, and the direction to the right of the operator is the right side.

[0054] A secondary preferred embodiment of the technical solution involves replacing one of the pressure sensors with a protruding structure on the staple cartridge base, or a protruding part that can be mounted on the staple cartridge base, with the height of the protrusion matching the height of the pressure sensor protruding from the inner side of the staple cartridge base. By replacing the protruding structure or protruding part on the staple cartridge base, the staple cartridge can reduce the use of one pressure sensor, thus reducing production costs. Because the height of the protrusion and the pressure sensor are the same, the pressure on the tail section of the staple cartridge facing the protrusion and the pressure sensor is consistent, allowing the detection of whether the staple pusher slider is in its initial position to be achieved using a single pressure sensor.

[0055] In the preferred embodiment of this invention, a thin-film pressure sensor can be used instead of the pressure sensor, while a protruding structure is added at the corresponding position of the staple cartridge tail section to achieve the same purpose. When the staple pusher slider is not in the initial position, the pressure sensor and the protrusion at the rear end of the staple cartridge are not in contact, and the pressure sensor is not subjected to force; when the staple pusher slider is in the initial position, the protrusion at the rear end of the staple cartridge presses the sensor to both sides, generating pressure on the pressure sensor; the pressure sensor transmits the detection result to the signal processor on the stapler through a circuit, and the signal processor is connected to the alarm light. When the pressure sensor detects pressure, the alarm light is in a constantly off state; when the pressure sensor detects zero pressure output, the alarm light illuminates to alert the operator.

[0056] In an alternative embodiment of the present invention, multiple pressure sensors can be used to replace the function of a single sensor. The pressure sensors can be circular, square, or other shapes, provided the total thickness of the pressure sensors meets the usage requirements. Other installation methods can also be chosen for the pressure sensors, ensuring they are fixed in place to prevent shaking or falling. The alarm light on the anastomosis device can be replaced by other alarm devices that effectively alert the operator, such as a buzzer.

[0057] Alternatively, by changing the height of the pressure sensor or the height of the boss, the pressure sensor can be subjected to very little pressure when the pusher slider is not in the initial position, and the pressure sensor pressure can be increased when the pusher slider is in the initial position. A pressure threshold can be used to distinguish whether the pusher slider of the nail cartridge is in the initial position.

[0058] This invention relates to a stapler with a disposable firing alarm function. When the staple cartridge has been fired, an alarm light will illuminate to remind the operator to replace it with a new one. Compared with mechanical disposable firing safety devices, this is more intuitive and saves surgical time for both doctors and patients, thus promoting better patient recovery.

[0059] The staple pusher slider is a key component of the staple cartridge. When the staple cartridge is not fired, the pusher slider is in its initial position. When the staple cartridge is fired, the cutting blade in the cartridge pushes the pusher slider from the proximal end to the distal end, moving it away from its initial position. After the staple cartridge is fully fired, the operator resets the stapler, the staple cartridge cutting blade resets, and the pusher slider, being a single-use component, is not fixedly connected to the cutting blade, remaining in its fired position after the cutting blade retracts. Therefore, whether the pusher slider is in its initial position can determine whether the staple cartridge has been fired a second time. This technical solution uses electronic technologies such as pressure sensors and photoelectric sensors to detect whether the staple cartridge pusher slider remains in its initial position, thereby determining whether the stapler cartridge has been fired. The probe detection result is transmitted via circuitry to a signal processor located inside the stapler. The signal processor is connected to an alarm light or other alarm device, and the detection result is ultimately fed back to the operator via an alarm light or other alarm.

[0060] It should be noted that although several units / modules or sub-units / modules of the device are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0061] While the spirit and principles of the invention have been described with reference to several specific embodiments, it should be understood that the invention is not limited to the disclosed specific embodiments, and the division of aspects does not imply that features in these aspects cannot be combined for benefit; such division is merely for ease of description. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A stapler with a disposable firing alarm device, characterized in that, The stapler includes a staple cartridge (11), a staple cartridge base (12), a staple pusher (15), a first pressure sensor (16), a signal processor, and an alarm device. The initial position of the staple pusher (15) is located at the tail of the staple cartridge (11). The signal processor and the alarm device are located inside the stapler. The staple pusher (15) in its initial position squeezes the first pressure sensor (16), and the squeezed first pressure sensor (16) transmits the squeeze signal to the alarm device through the signal processor. The pusher slide (15) is provided with a slot support plate (151), the staple cartridge (11) is provided with a slot (1108), the slot support plate (151) of the pusher slide (15) is located in the slot (1108) of the staple cartridge (11), the staple device also includes a cutting blade (14), the pusher slide (15) slides along the staple cartridge (11) from the proximal end to the distal end under the push of the cutting blade (14); The first pressure sensor (16) is fixedly installed on the inner side of one side of the tail of the nail cartridge base (12). The first pressure sensor (16) is pressed against the nail pusher slider (15) located in the initial position. When the nail pusher slider (15) slides along the nail cartridge (11) from the proximal end to the distal end under the push of the cutting blade (14), the pressing between the first pressure sensor (16) and the nail pusher slider (15) disappears. The first pressure sensor (16) that cannot sense the pressing will transmit the no-pressing signal to the alarm device by the signal processor to generate an alarm. The first pressure sensor (16) is a thin-film pressure sensor.

2. The stapler according to claim 1, characterized in that, When the pusher slider (15) in its initial position presses against the first pressure sensor (16), it means that the stapler is in a non-firing state. The pressing signal indicates that the pusher slider (15) is in the position when the stapler has not yet been fired, and the alarm device does not issue an alarm signal.

3. The stapler according to claim 1, characterized in that, The stapler also includes a second pressure sensor (17), which is fixedly installed on the inner side of the other side of the tail of the staple cartridge base (12). The second pressure sensor (17) and the first pressure sensor (16) are symmetrically distributed on the inner side of the tail of the staple cartridge base (12). When the staple pusher slider (15) is in the initial position, it simultaneously compresses the second pressure sensor (17) and the first pressure sensor (16).

4. The stapler according to claim 1, characterized in that, The inner side of the other side of the tail of the nail box base (12) also includes a protrusion structure. The height of the protrusion structure is consistent with that of the first pressure sensor (16) protruding from the inner side of the nail box base (12). When the nail pusher slider (15) is in the initial position, it simultaneously compresses the first pressure sensor (16) and the protrusion structure.

5. The stapler according to claim 3, characterized in that, The first pressure sensor (16) and the second pressure sensor (17) are circular or square.

6. The stapler according to claim 1, characterized in that, The alarm device is an alarm light or a buzzer.

7. The stapler according to any one of claims 1 to 6, characterized in that, When the pusher slider (15) is not in the initial position, the pressure on the first pressure sensor (16) is less than the pressure on the first pressure sensor (16) when the pusher slider (15) is in the initial position.

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