An electric stapler battery compartment structure

Abstract

The present invention relates to the technical field of electric staplers, and discloses a battery compartment structure of an electric stapler, which includes a housing. A handle is fixed to the bottom of the housing, and a motor is fixed inside the handle. A transmission assembly is arranged on the top of the motor, and a pressure feedback assembly is arranged at the front end of the transmission assembly. A firing switch is rotatably connected to the front side of the handle, and a pressure sensing button is arranged at the front side of the handle and at the bottom of the firing switch. The pressure sensing button is connected to the pressure feedback assembly to perform pressure feedback during the anastomosis process. A battery compartment is arranged at the tail of the housing, and the battery compartment is connected to the housing through a connection kit. The battery compartment is connected to the housing through a threaded tube and a threaded sleeve, which prevents the battery and the main body from being separately packaged and lost, and also avoids the connection from being loose due to damage or breakage of the connecting piece, affecting the use.

Description

Technical Field

[0001] The present invention relates to the technical field of electric staplers, and particularly to a battery compartment structure of an electric stapler. Background Art

[0002] Endoscopic staplers generally include two elongated jaw members, which are respectively used to grasp or clamp tissues. In some surgical staplers, one of the jaw members has a staple cartridge loaded with a plurality of staples arranged in at least two horizontal rows, and the other jaw member has an anvil, which defines a surface for forming staple legs when the staples are pushed out from the staple cartridge. During the stapling operation, by pushing the blade, the staples are sequentially ejected from the staple cartridge, and the blade can travel between the staple rows to longitudinally cut the tissues anastomosed between the staple rows. According to different power transmission methods, staplers can be divided into manual and electric types. Different from the mechanical control of traditional manual laparoscopic staplers, electric laparoscopic staplers cut tissues between two staples while firing the staples through power sensing. Electric laparoscopic staplers can drive in three rows of staggered staples on both sides and are all equipped with disposable battery packs.

[0003] The power supply of the electric stapler is generally an external detachable type. Each time the electric stapler needs to be used, an external battery pack is plugged in for use and discarded after unplugging, ensuring the one-time use of the battery pack. However, these plugged-in batteries are independently packaged with the stapler, which may cause the loss of the battery. Moreover, these plugged-in batteries are generally snapped together through clips on the edge. These clips are narrow and exposed on the outside, and during transportation, due to extrusion and stacking, the clips may be deformed or even broken, resulting in loose battery plug-in and seriously affecting the use. If the battery is built into the interior of the housing, it will cause users to be unable to judge the usage status of the battery pack and it is difficult to ensure whether the battery power is lost, which may affect the surgical process. During the use of the electric stapler, since the motor does work for stapling and cutting, it is impossible to feel the stapling force like a manual stapler during use. In the event of sudden situations such as thick and hypertrophic tissues during anastomosis and cutting, an overload phenomenon may occur. In this case, components such as the motor will generate heat, which will directly affect the battery pack in the housing and greatly increase the safety risk. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a battery compartment structure of an electric stapler, which has the advantages of high safety and solves problems such as loose connection or loss of the battery pack.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the present invention provides the following technical solution: An electric stapler battery compartment structure, comprising a housing, a handle is fixed to the bottom of the housing, a motor is fixed inside the handle, a transmission assembly is arranged on the top of the motor, a pressure feedback assembly is arranged at the front end of the transmission assembly, a firing switch is rotatably connected to the front side of the handle, a pressure sensing button is arranged at the front side of the handle and at the bottom of the firing switch, and the pressure sensing button is connected to the pressure feedback assembly for pressure feedback during the stapling process. A battery compartment is arranged at the tail of the housing, and the battery compartment is connected to the housing through a connecting kit.

[0008] Preferably, the transmission assembly includes a driving rack and a linkage gear. A plurality of driving teeth are arranged on one side of the driving rack. A sliding seat is fixed inside the housing, and the driving rack is slidably connected inside the sliding seat. The linkage gear is rotatably connected to a fixed seat arranged on the other side of the housing.

[0009] Preferably, a driving gear is fixedly connected to the shaft of the motor. The linkage gear is meshed with the driving gear and the driving teeth respectively. When the motor rotates, the driving gear drives the linkage gear to rotate, and the rotation of the linkage gear drives the driving rack to displace through the driving teeth.

[0010] Preferably, the transmission assembly includes a reset key. The reset key is slidably connected in a chute on the top of the housing. A top block is sleeved at the bottom of the reset key, and a compression spring is fixed between the top block and the reset key.

[0011] Preferably, a plurality of reset teeth are arranged on the top of the driving rack. Both the reset teeth and the top block are right-angled teeth and are arranged in opposite directions. Only when the reset key moves towards the tail, the reset teeth are engaged with the top block.

[0012] Preferably, the pressure feedback assembly includes a movable sleeve. The movable sleeve is clamped at the end of the driving rack. The other end of the movable sleeve is sleeved with a movable inner sleeve. The movable inner sleeve is slidably connected to the movable sleeve and a pressing spring is fixed outside. Cavities are arranged inside both the movable inner sleeve and the movable sleeve, and the connection part is sealed.

[0013] Preferably, the pressure feedback assembly includes a connecting sleeve. The two ends of the connecting sleeve are respectively clamped with the movable inner sleeve and the end of the push rod. A connecting hole is opened at the bottom of one end of the movable sleeve close to the driving rack. A cavity is arranged on one side of the handle and is slidably connected to the pressure sensing button. The connection part between the cavity of the handle and the pressure sensing button is sealed. The connecting hole of the movable sleeve is communicated with the cavity of the handle through an air pipe.

[0014] Preferably, the connection kit includes a threaded tube fixed to the tail of the housing. A threaded sleeve is externally threaded to the threaded tube. A rotating ring is provided at the end of the threaded sleeve. The threaded sleeve is sleeved on the end of the battery compartment and rotatably connected thereto. A sealing strip is fixed between the threaded sleeve and the housing.

[0015] Preferably, a plurality of card slots are provided in the center of the threaded tube. A key is provided at the end of the battery compartment to cooperate with the card slots. The end of the battery compartment is located inside the threaded tube and slidably connected thereto. A battery pack is installed in the battery compartment, and a cover plate is provided at the tail of the battery compartment.

[0016] Preferably, heat dissipation holes are provided on both sides of the battery compartment. Contacts are provided at the end of the battery pack. A hole is provided at the connection between the housing and the threaded tube for the contacts to pass through. A circuit connection seat is provided in the housing for connecting the contacts.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a battery compartment structure of an electric stapler, having the following beneficial effects:

[0019] 1. For the battery compartment structure of the electric stapler, the battery compartment is connected to the housing through the threaded tube and the threaded sleeve, preventing the battery and the main body from being separately packaged and lost, and also avoiding the connection from being insecure due to damage or breakage of the connecting parts, affecting the use.

[0020] 2. For the battery compartment structure of the electric stapler, the threaded sleeve and the housing are connected by a sealing strip. Under the blocking action of the sealing strip, the battery pack is prevented from being connected to the stapler circuit, preventing the battery power from being lost and affecting the use. Moreover, the sealing strip can effectively and intuitively show the usage situation, avoiding repeated use, and having higher safety.

[0021] 3. For the battery compartment structure of the electric stapler, during the anastomosis process, the movable sleeve and the movable inner sleeve are compressed, and transmitted to the pressure sensing button through the air pipe for feedback. It can accurately sense the anastomosis cutting pressure in real time during the operation, effectively preventing situations such as instrument overload, and can stop in time and take corresponding measures in case of an accident, with higher safety.

[0022] 4. For the battery compartment structure of the electric stapler, by setting an independent housing and battery compartment to distinguish them, it avoids the heat generated by electrical components or mechanical parts in the housing from affecting the battery, improving the use safety.

[0023] 5. For the battery compartment structure of the electric stapler, by setting a right-angled reset tooth and a top block, the top block can effectively contact the driving rack under the action of the compression spring, effectively increasing the reset stroke, and ensuring sufficient retraction when using different-stroke staple cartridges, with less limitation and higher safety.

[0024] 6. The battery compartment structure of this electric stapler can remove the battery compartment by turning the threaded sleeve. After the operation is completed, separating the battery and the stapler facilitates classification for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is one of the schematic diagrams of the internal structure of the present invention;

[0027] Figure 3 It is another schematic diagram of the internal structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the transmission component of the present invention;

[0029] Figure 5 It is an exploded schematic diagram of the pressure feedback component of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the pressure feedback component of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the battery compartment connection kit of the present invention;

[0032] Figure 8 It is an exploded schematic diagram of the battery compartment connection kit of the present invention;

[0033] Figure 9 It is a partial schematic diagram of the battery compartment of the present invention.

[0034] In the figure: 1. Housing; 101. Sliding seat; 102. Chute; 2. Handle; 3. Motor; 4. Transmission component; 401. Driving rack; 402. Linkage gear; 403. Driving tooth; 404. Driving gear; 405. Reset key; 406. Top block; 407. Compression spring; 408. Reset tooth; 5. Pressure feedback component; 501. Movable sleeve; 502. Movable inner sleeve; 503. Pressing spring; 504. Connecting sleeve; 505. Air pipe; 6. Firing switch; 7. Pressure sensing button; 8. Battery compartment; 801. Locking key; 802. Battery pack; 803. Cover plate; 804. Contact; 9. Connection kit; 901. Threaded pipe; 902. Threaded sleeve; 903. Rotating ring; 904. Sealing strip; 905. Card slot; 10. Push rod. DETAILED DESCRIPTION OF THE INVENTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figures 1-9 , a battery compartment structure of an electric stapler, including a housing 1, a handle 2 is fixed at the bottom of the housing 1, a motor 3 is fixed inside the handle 2, a transmission assembly 4 is arranged at the top of the motor 3, a pressure feedback assembly 5 is arranged at the front end of the transmission assembly 4, a firing switch 6 is rotatably connected to the front side of the handle 2, a pressure sensing button 7 is arranged at the front side of the handle 2 and at the bottom of the firing switch 6, and the pressure sensing button 7 is connected to the pressure feedback assembly 5 for pressure feedback during the anastomosis process. A battery compartment 8 is arranged at the tail of the housing 1, and the battery compartment 8 is connected to the housing 1 through a connection kit 9.

[0037] When in use, after opening the stapler package, the battery compartment 8 is connected to the stapler body through the connection kit 9. When not in use, it ensures that the power supply and the stapler are not in contact, preventing power loss from affecting the use during the operation. After the connection is completed, the operation is carried out. During the operation, first press the clamping button to close the jaws, and then press the firing switch 6 to perform tissue anastomosis and cutting. During the cutting process, the pressure feedback assembly 5 continuously feeds back the pressure to the pressure sensing button 7 in real time. By touching the pressure sensing button 7, the pressure during anastomosis can be understood, preventing continuous pressing of the firing switch 6 in case of overload, which may cause component failure or burnout, greatly improving the safety during use. It can timely detect and replace the surgical instrument in special cases, preventing damage to the patient's tissue and affecting the operation progress. After the operation is completed, the battery compartment 8 and the stapler body are separated through the connection kit 9, facilitating subsequent classification and recycling.

[0038] Further, the transmission assembly 4 includes a driving rack 401 and a linkage gear 402. A plurality of driving teeth 403 are arranged on one side of the driving rack 401. A sliding seat 101 is fixed inside the housing 1. The driving rack 401 is slidably connected inside the sliding seat 101. The linkage gear 402 is rotatably connected to a fixed seat arranged on the other side of the housing 1. During the use process, the driving rack 401 slides left and right under the limitation of the sliding seat 101. The sliding of the driving rack 401 can drive the push rod 10 to move forward and backward for tissue anastomosis cutting and resetting. The linkage gear 402 plays a conduction role between the driving rack 401 and the driving gear 404 under the limitation of the fixed seat, ensuring stability.

[0039] Further, a driving gear 404 is fixedly connected to the shaft portion of the motor 3. The linkage gear 402 meshes with the driving gear 404 and the driving teeth 403 respectively. When the motor 3 rotates, the linkage gear 402 is driven to rotate by the driving gear 404. The rotation of the linkage gear 402 drives the driving rack 401 to displace through the driving teeth 403. During the operation, when the firing switch 6 is pressed, the motor 3 starts and drives the driving gear 404 to rotate. Since both the driving gear 404 and the driving teeth 403 mesh with the linkage gear 402, the driving rack 401 is driven to slide under the combined action of the linkage gear 402 and the driving teeth 403. The sliding of the driving rack 401 drives the push rod 10 to advance through the connecting kit 9 at the end, thus realizing the anastomosis and cutting of tissues.

[0040] Further, the transmission assembly 4 includes a reset key 405. The reset key 405 is slidably connected in the chute 102 at the top of the housing 1. A top block 406 is sleeved at the bottom of the reset key 405. A compression spring 407 is fixed between the top block 406 and the reset key 405. In case of an accident such as insufficient power of the stapler, it is necessary to pull the reset key 405 for forced reset. By pulling the reset key 405, the anvil and the blade are pulled back. Under the elastic force of the compression spring 407, the top block 406 can always fit against the top surface of the driving rack 401, preventing poor contact from causing the driving rack 401 not to be pulled back and affecting the use.

[0041] Further, a number of reset teeth 408 are provided on the top of the driving rack 401. Both the reset teeth 408 and the top block 406 are right-angled teeth and are arranged in opposite directions. Only when the reset key 405 moves towards the tail, the reset teeth 408 engage with the top block 406. Since both the reset teeth 408 and the top block 406 are right-angled teeth and are arranged in opposite directions, when the reset key 405 is pushed forward, due to the arc surface contact between the reset teeth 408 and the top block 406, the compression spring 407 will be compressed at this time to press the top block 406 into the reset key 405, and thus it cannot play the role of pushing the driving rack 401. On the contrary, when the reset key 405 is pulled backward, at this time the right-angled surfaces of the reset teeth 408 and the top block 406 are in contact, and the top block 406 will resist the driving rack 401 to displace backward. This ensures that the stapler can be fully pulled back when using staple cartridges with different strokes. When the stroke is long, only need to push the reset key 405 forward and then pull it back, with less limitation and a wider applicable range. The reset teeth 408 penetrate through the top of the sliding seat 101 to contact the top block 406, preventing the sliding seat 101 from blocking the top block 406.

[0042] Further, the pressure feedback component 5 includes a movable sleeve 501, which is clamped at the end of the driving rack 401. The other end of the movable sleeve 501 is sleeved with a movable inner sleeve 502. The movable inner sleeve 502 is slidably connected to the movable sleeve 501 and is externally fixed with a pressing spring 503. Both the movable inner sleeve 502 and the movable sleeve 501 are provided with cavities inside and the connection part is sealed. When the driving rack 401 moves forward, it will push the movable sleeve 501 to move synchronously. Because the movable sleeve 501 and the movable inner sleeve 502 are sleeved and the pressing spring 503 is externally fixed, when the anastomosis pressure is small and smooth, the elastic force of the pressing spring 503 will make the movable sleeve 501 and the movable inner sleeve 502 in the maximum stroke. However, when the anastomosis pressure increases, the pressure will act on one side of the push rod 10. Under the combined pressure of the driving rack 401 and the push rod 10, the pressing spring 503 will be compressed. This will cause the movable inner sleeve 502 to enter the movable sleeve 501 and compress the internal space. The movable sleeve 501 and the movable inner sleeve 502 are similar to the cylinder structure, so sealing treatment is required. Because there is a certain stroke, the feedback on the pressure magnitude is very accurate. The greater the pressure, the greater the compression degree. On the contrary, when the pressure is less than the elastic force of the pressing spring 503, it will not be compressed. This can enable medical staff to feel the anastomosis pressure in real time during the operation, which not only ensures the smooth and stable electric anastomosis, but also can make timely responses in case of emergencies, avoiding overload from affecting the operation process or even increasing the operation risk, with stronger practicability. And during the anastomosis process, only one finger needs to be placed on the pressure sensing button 7, without the need to distract to observe the stapler.

[0043] Furthermore, the pressure feedback component 5 includes a connecting sleeve 504. The two ends of the connecting sleeve 504 are respectively clamped with the movable inner sleeve 502 and the end of the push rod 10. A connecting hole is opened at the bottom of one end of the movable sleeve 501 close to the driving rack 401. A cavity is provided on one side of the handle 2 and is slidably connected with the pressure sensing button 7. The connection between the cavity of the handle 2 and the pressure sensing button 7 is sealed. The connecting hole of the movable sleeve 501 is communicated with the cavity of the handle 2 through an air pipe 505. The connecting sleeve 504 serves to connect the movable inner sleeve 502 and the push rod 10. During the anastomosis process, when the pressure increases and compresses the pressing spring 503, the movable sleeve 501 and the movable inner sleeve 502 will be compressed. Because the movable sleeve 501 and the movable inner sleeve 502 are sealed, the compressed air will be discharged through the connecting hole, and then enter the cavity of the handle 2 through the air pipe 505. Under the action of the air pressure, the pressure sensing button 7 will be pushed outwards, thus giving feedback to the medical staff. When the pressure sensing button 7 protrudes more, it indicates that the anastomosis pressure is greater. If it is in the protruding position for a long time, it is necessary to consider pausing the operation to prevent overload. If the pressure returns to normal during the anastomosis process, then under the action of the pressing spring 503, the movable inner sleeve 502 and the movable sleeve 501 will be pulled apart again. Similarly, the air in the cavity between the pressure sensing button 7 and the handle 2 will be pumped out. At this time, the pressure sensing button 7 will return to the contracted state. By sensing the state of the pressure sensing button 7, the anastomosis pressure can be understood in real time during the operation, with high stability and avoiding overload and failure. There are gaps between the connection of the movable sleeve 501 and the driving rack 401 and the connection of the movable inner sleeve 502 and the connecting sleeve 504 to prevent jamming during the transmission process due to tight connection and affect the use.

[0044] Furthermore, the connecting kit 9 includes a threaded tube 901. The threaded tube 901 is fixed to the tail of the housing 1. A threaded sleeve 902 is externally threaded to the threaded tube 901. A rotating ring 903 is provided at the end of the threaded sleeve 902. The threaded sleeve 902 is sleeved on the end of the battery compartment 8 and is rotatably connected thereto. A sealing strip 904 is fixed between the threaded sleeve 902 and the housing 1. Before use, the sealing strip 904 will connect the housing 1 and the threaded sleeve 902. Under the blocking action of the sealing strip 904, the threaded tube 901 cannot be completely screwed into the threaded sleeve 902, which separates the battery pack 802 from the internal circuit board of the stapler, preventing the battery pack 802 in the battery compartment 8 from contacting the internal circuit of the stapler and causing power loss. When in use, the sealing strip 904 needs to be torn off and then the rotating ring 903 is rotated. Driven by the rotating ring 903, the threaded tube 901 will completely enter the threaded sleeve 902. At this time, the battery pack 802 and the internal circuit of the stapler will engage to enable subsequent use. And after the sealing strip 904 is torn off, it can be clearly distinguished whether the stapler has been used, with high safety, effectively preventing the reuse of the instrument, and also effectively ensuring that the battery has sufficient power during use.

[0045] Furthermore, a number of card slots 905 are provided in the center of the threaded tube 901. A key 801 that cooperates with the card slots 905 is provided at the end of the battery compartment 8. The end of the battery compartment 8 is located inside the threaded tube 901 and is slidably connected thereto. A battery pack 802 is installed in the battery compartment 8. A cover plate 803 is provided at the tail of the battery compartment 8. When not in use, the end of the battery compartment 8 is inside the threaded tube 901. At this time, the threaded tube 901 and the threaded sleeve 902 are connected to each other, but there is a certain gap under the action of the unsealing strip 904 to prevent the battery pack 802 from contacting the stapler circuit. This prevents the battery and the stapler body from being separately packaged and lost, and also prevents the connecting member from being deformed or broken, affecting the use. When in use, tear off the unsealing strip 904 and rotate the rotating ring 903. Since the threaded sleeve 902 is rotatably connected to the battery compartment 8, the threaded sleeve 902 will not drive the battery compartment 8 to rotate synchronously during the process of being threadedly connected to the threaded tube 901. And under the action of the card slots 905 and the key 801, the battery compartment 8 will be inserted in parallel. After the threaded tube 901 completely enters the threaded sleeve 902, the battery pack 802 will be connected to the stapler circuit. The battery compartment 8 and the housing 1 form an independent space, avoiding other electrical components in the housing 1 from affecting the battery pack 802 and ensuring safety during use. And after use, by unscrewing the threadedly connected battery compartment 8, it can be recycled separately from the stapler body.

[0046] Furthermore, heat dissipation holes are provided on both sides of the battery compartment 8. A contact 804 is provided at the end of the battery pack 802. A hole is provided at the connection between the housing 1 and the threaded tube 901 so that the contact 804 can pass through. A circuit connection seat is provided inside the housing 1 for connecting the contact 804. The heat dissipation holes on both sides of the battery compartment 8 can effectively dissipate heat during use to prevent heat accumulation. When the rotating ring 903 is rotated, the threaded tube 901 is driven to enter the threaded sleeve 902. At this time, the contact 804 will pass through the threaded tube 901 and the housing 1 and enter the inside thereof to be connected to the circuit connection seat, and then the subsequent surgical operation can be carried out.

[0047] Working principle: When in use, unpack the stapler package and check whether the appearance is damaged or destroyed. Observe whether the unsealing strip 904 is opened. Before use, the unsealing strip 904 connects the housing 1 and the threaded sleeve 902. At this time, the end of the battery compartment 8 is inside the threaded tube 901. The threaded tube 901 and the threaded sleeve 902 are connected to each other. However, due to the blocking effect of the unsealing strip 904, the threaded tube 901 cannot be fully screwed into the threaded sleeve 902, which separates the battery pack 802 from the internal circuit board of the stapler, preventing the battery pack 802 in the battery compartment 8 from contacting the internal circuit of the stapler and causing power loss. At the same time, it prevents the battery and the stapler body from being separately packaged and lost, and also prevents the connecting piece from being deformed or broken, affecting the use. After determining that it is intact, tear off the unsealing strip 904 for use. Then rotate the rotating ring 903. Driven by the rotating ring 903, the threaded tube 901 will completely enter the threaded sleeve 902. Since the threaded sleeve 902 is rotatably connected to the battery compartment 8, the threaded sleeve 902 will not drive the battery compartment 8 to rotate synchronously during the threaded connection between the threaded sleeve 902 and the threaded tube 901. And under the action of the card slot 905 and the key 801, the battery compartment 8 will be inserted in parallel. After the threaded tube 901 completely enters the threaded sleeve 902, at this time, the contact 804 will pass through the threaded tube 901 and the housing 1 and enter its interior and be connected to the circuit connection seat, and the battery pack 802 will also be connected to the stapler circuit. The battery compartment 8 and the housing 1 form an independent space, preventing other electrical components in the housing 1 from affecting the battery pack 802 and ensuring safety during use.

[0048] During the operation, first adjust the direction of the jaws. After placing it at the position of the anastomotic tissue, press the clamping button to close the jaws, and then press the firing switch 6 to perform tissue anastomosis and cutting. During the anastomosis and cutting process, place the middle finger or ring finger on the pressure sensing button 7. The pressure feedback component 5 will timely feedback the pressure to the pressure sensing button 7. By touching the pressure sensing button 7, the pressure during anastomosis can be understood. At this time, the motor 3 starts and drives the driving gear 404 to rotate. Since both the driving gear 404 and the driving teeth 403 are engaged with the linkage gear 402, the driving rack 401 is driven to slide under the combined action of the linkage gear 402 and the driving teeth 403. When the driving rack 401 advances, it will push the movable sleeve 501 to move synchronously. Since the movable sleeve 501 and the movable inner sleeve 502 are sleeved and there is a pressing spring 503 fixed outside, when the anastomosis pressure is small and smooth, the elastic force of the pressing spring 503 will make the movable sleeve 501 and the movable inner sleeve 502 in the maximum stroke. However, when the anastomosis pressure increases, the pressure will act on one side of the push rod 10. Under the combined pressure of the driving rack 401 and the push rod 10, the pressing spring 503 will be compressed. This will cause the movable inner sleeve 502 to enter the movable sleeve 501 and compress the internal space. Since the movable sleeve 501 and the movable inner sleeve 502 are sealed, the compressed air will be discharged through the connecting hole, and then enter the cavity at the handle 2 through the trachea 505. Under the action of the air pressure, the pressure sensing button 7 will be pushed outwards, so as to give feedback to the medical staff. The more prominent the pressure sensing button 7 is, the greater the anastomosis pressure is. If it is in the prominent position for a long time, it is necessary to consider suspending the operation to prevent overload. If the pressure returns to normal during the anastomosis process, then under the action of the pressing spring 503, the movable inner sleeve 502 and the movable sleeve 501 will be pulled apart again. Similarly, the air in the cavity between the pressure sensing button 7 and the handle 2 will be pumped out. At this time, the pressure sensing button 7 will reset to the contracted state. By sensing the state of the pressure sensing button 7, the anastomosis pressure can be understood in real time during the operation.

[0049] After the operation is completed, the stapler is reset and removed by pressing a button. In case of special situations such as insufficient battery power, the reset key 405 is pulled to perform forced reset. By pulling the reset key 405, the anvil and the blade are pulled back. Since both the reset teeth 408 and the top block 406 are right-angled teeth and are arranged in opposite directions, when the reset key 405 is pushed forward, because the arc surfaces of the reset teeth 408 and the top block 406 are in contact, at this time, the compression spring 407 is compressed to press the top block 406 into the reset key 405, and thus it cannot play the role of pushing the drive rack 401. On the contrary, when the reset key 405 is pulled backward, at this time, the right-angled surfaces of the reset teeth 408 and the top block 406 are in contact, and the top block 406 will resist the drive rack 401 to move backward. This ensures that the stapler can be fully pulled back when using staple cartridges with different strokes. When the stroke is long, only need to push the reset key 405 forward and then pull it back. After the operation is completed, unscrew the battery compartment 8 and separate the stapler for recycling.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery compartment structure of an electric stapler, characterized in that: It includes a housing (1), a handle (2) is fixed to the bottom of the housing (1), a motor (3) is fixed inside the handle (2), a transmission assembly (4) is arranged at the top of the motor (3), a pressure feedback assembly (5) is arranged at the front end of the transmission assembly (4), a firing switch (6) is rotatably connected to the front side of the handle (2), a pressure sensing button (7) is arranged at the front side of the handle (2) and at the bottom of the firing switch (6), the pressure sensing button (7) is connected to the pressure feedback assembly (5) for pressure feedback during the mating process, a battery compartment (8) is arranged at the tail of the housing (1), and the battery compartment (8) is connected to the housing (1) through a connection kit (9); The pressure feedback assembly (5) includes a movable sleeve (501), the movable sleeve (501) is clamped at the end of the driving rack (401), the other end of the movable sleeve (501) is sleeved with a movable inner sleeve (502), the movable inner sleeve (502) is slidably connected to the movable sleeve (501) and a pressing spring (503) is fixed to the outside, cavities are provided inside both the movable inner sleeve (502) and the movable sleeve (501) and the connection part is sealed; The pressure feedback assembly (5) includes a connecting sleeve (504), both ends of the connecting sleeve (504) are respectively clamped with the movable inner sleeve (502) and the end of a push rod (10), a connection hole is opened at the bottom of one end of the movable sleeve (501) close to the driving rack (401), a cavity is arranged on one side of the handle (2) and is slidably connected to the pressure sensing button (7), the connection part between the cavity of the handle (2) and the pressure sensing button (7) is sealed, and the connection hole of the movable sleeve (501) is communicated with the cavity of the handle (2) through an air pipe (505).

2. The battery compartment structure of an electric stapler according to claim 1, characterized in that: The transmission assembly (4) includes a driving rack (401) and a linkage gear (402), a plurality of driving teeth (403) are arranged on one side of the driving rack (401), a sliding seat (101) is fixed inside the housing (1), the driving rack (401) is slidably connected inside the sliding seat (101), and the linkage gear (402) is rotatably connected to a fixed seat arranged on the other side of the housing (1).

3. The battery compartment structure of an electric stapler according to claim 2, characterized in that: A driving gear (404) is fixedly connected to the shaft part of the motor (3), the linkage gear (402) is respectively meshed with the driving gear (404) and the driving teeth (403), when the motor (3) rotates, the linkage gear (402) is driven to rotate by the driving gear (404), and the linkage gear (402) rotates to drive the driving rack (401) to displace through the driving teeth (403).

4. The battery compartment structure of an electric stapler according to claim 3, characterized in that: The transmission assembly (4) includes a reset key (405), the reset key (405) is slidably connected in a chute (102) at the top of the housing (1), a top block (406) is sleeved at the bottom of the reset key (405), and a compression spring (407) is fixed between the top block (406) and the reset key (405).

5. The battery compartment structure of an electric stapler according to claim 4, characterized in that: A number of reset teeth (408) are provided at the top of the driving rack (401). Both the reset teeth (408) and the top block (406) are right-angled teeth and are arranged in opposite directions. Only when the reset key (405) moves towards the tail, the reset teeth (408) engage with the top block (406).

6. The battery compartment structure of an electric stapler according to claim 1, characterized in that: The connection kit (9) includes a threaded tube (901). The threaded tube (901) is fixed to the tail of the housing (1). An external thread of the threaded tube (901) is threadedly connected to a threaded sleeve (902). A rotating ring (903) is provided at the end of the threaded sleeve (902). The threaded sleeve (902) is sleeved on the end of the battery compartment (8) and is rotatably connected thereto. A seal strip (904) is fixed between the threaded sleeve (902) and the housing (1).

7. The battery compartment structure of an electric stapler according to claim 6, characterized in that: A number of card slots (905) are provided at the center of the threaded tube (901). A key (801) that cooperates with the card slots (905) is provided at the end of the battery compartment (8). The end of the battery compartment (8) is located inside the threaded tube (901) and is slidably connected thereto. A battery pack (802) is installed in the battery compartment (8). A cover plate (803) is provided at the tail of the battery compartment (8).

8. The battery compartment structure of an electric stapler according to claim 7, characterized in that: Heat dissipation holes are provided on both sides of the battery compartment (8). A contact (804) is provided at the end of the battery pack (802). A hole is provided at the connection between the housing (1) and the threaded tube (901) so that the contact (804) can pass through. A circuit connection seat is provided inside the housing (1) for connecting the contact (804).

Images