Electric anastomat with mis-percussion prevention function

By designing an anti-accidental firing unit on the electric stapler, and using components such as a shield and pressure sensor to protect the firing button, the problem of easy contamination and damage of the firing button in the prior art is solved, and the effects of preventing accidental firing and disinfection are achieved.

CN121606333APending Publication Date: 2026-03-06MGR BIOTECHNOLOGY (JIANGSU) CO LTD
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Patent Information

Application Number
CN202511788867.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-01
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing electric staplers lack external protection mechanisms, making the firing button susceptible to contamination and damage, and posing a risk of accidental firing.

Method used

An anti-accidental firing unit was designed to prevent accidental firing by blocking the firing button and protecting the firing button when the anastomosis device is not in use. The unit utilizes components such as a shield, a sliding block, and a pressure sensor to achieve safety and disinfection functions.

Benefits of technology

It effectively prevents accidental firing, reduces the risk of contamination and damage to the firing button, and disinfects the button when not in use, thus reducing the risk of postoperative contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of electric anastomats, and particularly relates to an electric anastomat with a mis-percussion prevention function. Comprising an anastomat body, and a grip, a percussion button and an operating handle are arranged on the anastomat body; the electric anastomat with the mis-percussion prevention function further comprises a mis-percussion prevention unit, the mis-percussion prevention unit is arranged on the anastomat body, the mis-percussion prevention unit achieves the purpose of mis-percussion prevention by shielding a percussion button, and the effect of protecting the percussion button can be achieved; when the anastomat body is not used, the percussion button can be protected, and the risk that the percussion button is polluted and damaged is reduced.
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Description

Technical Field

[0001] This invention belongs to the field of electric stapler technology, specifically an electric stapler with anti-accidental firing function. Background Technology

[0002] Electric staplers are advanced medical devices used in surgery to replace manual suturing, connecting or cutting of tissues. Through electric drive and intelligent control, they provide a more stable, labor-saving and safer surgical experience than traditional manual staplers, especially in highly difficult minimally invasive surgeries and complex cases. When using an electric stapler, it is usually necessary to release the safety and then press the firing button. However, the existing safety devices are all built-in safety devices and cannot provide external protection for the firing button. In view of this, the present invention solves the above-mentioned technical problems by proposing an electric stapler with an anti-accidental firing function. Summary of the Invention

[0003] To overcome the shortcomings of existing technology, the invention provides an electric stapler with an anti-accidental firing function by blocking the firing button.

[0004] The technical solution adopted by this invention to solve its technical problem is: an electric stapler with anti-accidental firing function, comprising: a stapler body, wherein the stapler body is provided with a handle, a firing button and an operating handle; the electric stapler with anti-accidental firing function further comprises: an anti-accidental firing unit, wherein the stapler body is provided with an anti-accidental firing unit, wherein the anti-accidental firing unit achieves the purpose of preventing accidental firing by blocking the firing button, and can also achieve the effect of protecting the firing button; it can protect the firing button when the stapler body is not in use, reducing the risk of contamination and damage to the firing button.

[0005] Preferably, the anti-accidental firing unit includes: a shield plate, on both sides of the top of the stapler body, a shield plate is rotatably connected, and a torsion spring is provided at the connection point; a first post, a first post is fixedly provided at both ends of each shield plate facing the stapler body, a locking block is provided at the end of the first post, and the two sides of the stapler body corresponding to the first post are provided with locking grooves that match the first post.

[0006] Preferably, each of the two ends of the shield is fixedly connected to a control block, and a sliding block is slidably connected between the two control blocks and close to the outer surface of the shield. The end of the sliding block is rotatably connected to a base plate, and a torsion spring is provided at the connection point. The sliding block and the base plate can cover the handle and the operating handle and put them in a semi-enclosed state.

[0007] Preferably, the base plate is hollow and filled with a disinfectant solution, and the surface of the base plate is provided with an atomizing nozzle.

[0008] Preferably, a pressure sensor is provided at the bottom of the first column; the control block has a first cavity and a second cavity inside; an electromagnet is fixedly connected to the end of the first cavity; a push block is slidably connected inside the first cavity; a spring is fixedly connected between the first electromagnet and the push block; the first cavity and the second cavity communicate; a connecting block is slidably connected inside the second cavity; the connecting block is fixedly connected to the side wall of the sliding block; and a telescopic membrane is fixedly connected between the two ends of the connecting block and the two ends of the first cavity; a cylinder is fixedly provided inside the control block near one end; a T-shaped rod is slidably connected inside the first cylinder; a spring is fixedly connected between the end of the first T-shaped rod and the inner side wall of the first cylinder; the other end of the first T-shaped rod extends into the second cavity; a third cavity is provided inside the first column; and the locking block is slidably connected... Inside cavity three, cylinder one is fixedly connected to tube one, which connects cylinder one to cavity three. When the T-shaped rod one is pressed, the locking block retracts into cavity three. Cavity four is provided inside the connecting block, and T-shaped rod two is slidably connected within cavity four. Spring three is fixedly connected between T-shaped rod two and the side wall of cavity four. The other end of T-shaped rod two protrudes outside the connecting block. Hole one is provided on the sliding block, and cavity five is provided inside the sliding block adjacent to hole one. Locking block is slidably connected within cavity five. Tube two is provided inside the sliding block, connecting cavity four to cavity five. When T-shaped rod two is pressed, locking block retracts into cavity five. A pin is fixedly connected to the base plate corresponding to hole one, and locking block secures the pin. When the safety mechanism is engaged, the slot consists of a combination of holes of different diameters. Together with the locking block, it locks post number one. The baffle plate falls, covering the firing button, while the operating handle can be pressed normally. The firing button cannot be pressed due to the baffle plate's obstruction, thus achieving the safety function. At this time, the torsion spring at the baffle plate is in a charged state. When the safety mechanism needs to be disengaged, the sliding block is pushed upwards. The sliding block causes the connecting block to contact and press against the first T-shaped rod, compressing the second spring and causing the locking block to retract into cavity number three, releasing the lock on post number one. Under the action of the torsion spring, the baffle plate unfolds, exposing the firing button, which can then be pressed. When the stapler body is not in use, pressing the baffle plate causes it to fall back down and lock. Then, pressing the base plate causes the pressure sensor below post number one to be pressurized, causing the first electromagnet to attract the push block, opening the first and second cavities. All cavities can be filled with hydraulic oil. Therefore, when cavity 1 is compressed, the connecting block is pushed, causing the sliding plate to move downwards. When the connecting block moves to the end of cavity 2, the end of the sliding block blocks the bottom of the grip and operating handle. At this time, the second T-shaped rod is pressed, the third spring is compressed, and the locking block retracts into cavity 5 (the pin has a hole to engage with the locking block), releasing the base plate. Under the action of the torsion spring, the base plate flips to the bottom of the grip and operating handle. At this time, the atomizing nozzle sprays disinfectant solution, which can be alcohol. This disinfectant solution protects the grip, firing button, and operating handle while also disinfecting them, reducing the risk of postoperative contamination. To open, press column 1 again, which de-energizes electromagnet 1. With manual operation, the sliding block and base plate can be opened. The disinfectant solution inside the base plate can be replenished.

[0009] Preferably, the cross-sectional area of ​​the first cavity is larger than the cross-sectional area of ​​the second cavity; This setting allows the pusher to move the baffle a sufficient distance within a limited range of motion.

[0010] Preferably, the side wall of the first cylinder has a sixth cavity, and a third T-shaped rod is slidably connected in the sixth cavity. A fourth spring is fixed between the end of the third T-shaped rod and the sixth cavity. The side wall of the first T-shaped rod has a second hole, and the third T-shaped rod can be inserted into the second hole. The first electromagnet can repel the third T-shaped rod. When electromagnet number one is energized, T-shaped rod number one does not need to move. The baffle plate needs to remain locked. Therefore, electromagnet number one repels T-shaped rod number three, keeping T-shaped rod number one locked and reducing the number of T-shaped rod number one being pushed by the pusher block. When electromagnet number one is de-energized, T-shaped rod number one is unlocked.

[0011] The beneficial effects of this invention are as follows: 1. The electric stapler with anti-accidental firing function of the present invention is provided with an anti-accidental firing unit. The anti-accidental firing unit is provided on the stapler body. The anti-accidental firing unit achieves the purpose of preventing accidental firing by blocking the firing button and can also protect the firing button. It can protect the firing button when the stapler body is not in use, reducing the risk of contamination and damage to the firing button.

[0012] 2. The electric stapler with anti-accidental firing function described in this invention, when the safety is not released, the cover plate falls down, covering the firing button, while the operating handle can be pressed normally. The firing button cannot be pressed due to the cover plate, thus realizing the safety function. When it is necessary to release the safety, push the sliding block upward to release the lock. Under the action of the torsion spring, the cover plate unfolds, thus exposing the firing button, which can be pressed. When the stapler body is not in use, press the cover plate down again to lock it. Then press the bottom plate to move the sliding plate down. When the connecting block moves to the end of the second cavity, the end of the sliding block covers the bottom of the handle and operating handle. Under the action of the torsion spring, the bottom plate flips to the bottom of the handle and operating handle. At this time, the atomizing nozzle sprays disinfectant solution, which protects the handle, firing button and operating handle while also disinfecting them, reducing the risk of postoperative contamination. Attached Figure Description

[0013] The invention will now be further described with reference to the accompanying drawings.

[0014] Figure 1 The three-dimensional shape of the shielding plate when it falls according to the present invention. Figure 1 ; Figure 2 The three-dimensional shape of the shielding plate when it falls according to the present invention. Figure 2 ; Figure 3 This is the three-dimensional representation of the shielding plate of the present invention when it is open. Figure 1 ; Figure 4 This is the three-dimensional representation of the shielding plate of the present invention when it is open. Figure 2 ; Figure 5 This invention relates to a three-dimensional representation of the shielding plate, sliding block, and bottom plate when they are open. Figure 1 ; Figure 6 This is a partial perspective view of the present invention; Figure 7 This is a cross-sectional view of the control block of the present invention; Figure 8 yes Figure 7 Enlarged view of a portion at point A; Figure 9 yes Figure 8 A magnified view of section B; Figure 10 This is a schematic diagram of the structure of cavity number five in this invention; In the diagram: 1. Anastomosis device body; 11. Handle; 12. Firing button; 13. Operating handle; 2. Anti-accidental firing unit; 21. Shielding plate; 22. Column No. 1; 23. Locking block; 24. Locking slot; 3. Control block; 31. Sliding block; 32. Base plate; 4. Atomizing nozzle; 5. Pressure sensor; 6. Chamber No. 1; 61. Chamber No. 2; 62. Electromagnet No. 1; 63. Pushing block; 64. 65. Connecting block; 66. Telescopic membrane; 7. Cylinder No. 1; 71. T-shaped rod No. 1; 72. Spring No. 2; 73. Cavity No. 3; 74. Tube No. 1; 8. Cavity No. 4; 81. T-shaped rod No. 2; 82. Spring No. 3; 83. Hole No. 1; 84. Cavity No. 5; 85. Locking block; 86. Tube No. 2; 9. Cavity No. 6; 91. T-shaped rod No. 3; 92. Spring No. 4; 93. Hole No. 2. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 As shown, the electric stapler with anti-accidental firing function of the present invention includes: a stapler body 1, on which a handle 11, a firing button 12 and an operating handle 13 are provided; the electric stapler with anti-accidental firing function also includes: an anti-accidental firing unit 2, on which the stapler body 1 is provided; the anti-accidental firing unit 2 achieves the purpose of preventing accidental firing by blocking the firing button 12, and can also achieve the effect of protecting the firing button 12; When using the electric stapler, it is usually necessary to release the safety and then press the firing button 12. However, the existing safety devices are all built-in and cannot provide external protection for the firing button 12. Therefore, an anti-accidental firing unit 2 is set up. The stapler body 1 is equipped with an anti-accidental firing unit 2. The anti-accidental firing unit 2 achieves the purpose of preventing accidental firing by blocking the firing button 12 and can also protect the firing button 12. It can protect the firing button 12 when the stapler body 1 is not in use, reducing the risk of contamination and damage to the firing button 12.

[0017] As a specific embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the anti-accidental firing unit 2 includes: a shield 21, which is rotatably connected to both sides of the top of the stapler body 1, and a torsion spring is provided at the connection; a first post 22, which is fixedly provided at both ends of each shield 21 facing the stapler body 1, and a locking block 23 is provided near the end of the first post 22. The stapler body 1 has a locking groove 24 on both sides corresponding to the first post 22 to match the first post 22. like Figure 5 As shown, each of the two ends of the baffle 21 is fixedly connected to a control block 3, and a sliding block 31 is slidably connected between the two control blocks 3 and close to the outer surface of the baffle 21. The end of the sliding block 31 is rotatably connected to a base plate 32, and a torsion spring is provided at the connection point. The sliding block 31 and the base plate 32 can cover the handle 11 and the operating handle 13 and make them in a semi-enclosed state. like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown, the interior of the base plate 32 is hollow and filled with disinfectant solution, and the surface of the base plate 32 is provided with atomizing nozzles 4; like Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 10As shown, a pressure sensor 5 is installed at the bottom of column 22; a first cavity 6 and a second cavity 61 are opened inside the control block 3. An electromagnet 62 is fixedly connected to the end of the first cavity 6. A push block 63 is slidably connected inside the first cavity 6. A spring 64 is fixedly connected between the electromagnet 62 and the push block 63. The first cavity 6 and the second cavity 61 are connected. A connecting block 65 is slidably connected inside the second cavity 61. The connecting block 65 is fixedly connected to the side wall of the sliding block 31. A telescopic membrane 66 is fixedly connected between the two ends of the connecting block 65 and the two ends of the first cavity 6; a cylinder 7 is fixedly installed near one end inside the control block 3. A T-shaped rod 71 is slidably connected inside the first cylinder 7. A spring 72 is fixedly connected between the end of the first T-shaped rod 71 and the inner side wall of the first cylinder 7. The other end of the first T-shaped rod 71 extends into the second cavity 61. A third cavity 73 is opened inside the first column 22. A locking block 23 is slidably connected to the third cavity 73. Inside, cylinder 7 is fixedly connected to tube 74, which connects cylinder 7 to cavity 73. When T-shaped rod 71 is compressed, locking block 23 can retract into cavity 73. A cavity 8 is formed inside connecting block 65, and T-shaped rod 81 is slidably connected within cavity 8. Spring 82 is fixed between T-shaped rod 81 and the side wall of cavity 8. The other end of T-shaped rod 81 protrudes outside connecting block 65, allowing for sliding... A hole 83 is provided on the block 31. A cavity 84 is provided inside the sliding block 31 adjacent to the hole 83. A locking block 85 is slidably connected inside the cavity 84. A tube 86 is provided inside the sliding block 31, which connects the cavity 84 to the cavity 84. When the T-shaped rod 81 is pressed, the locking block 85 retracts into the cavity 84. A pin is fixedly connected to the bottom plate 32 at the position corresponding to the hole 83, and the locking block 85 can fix the pin. During operation, when the safety is engaged, the slot 24, consisting of a combination of holes of varying diameters, locks the first post 22 in conjunction with the locking block 23. The cover plate 21 then lowers, obscuring the firing button 12, while the operating handle 13 can still be pressed normally. The firing button 12 cannot be pressed due to the cover plate 21, thus achieving the safety function. At this time, the torsion spring at the cover plate 21 is in a charged state. When the safety needs to be disengaged, the sliding block 31 is pushed upwards, causing the connecting block 65 to engage... When the first T-shaped rod 71 is pressed, the second spring 72 is compressed, causing the locking block 23 to retract into the third cavity 73, releasing the lock on the first post 22. Under the action of the torsion spring, the cover plate 21 unfolds, exposing the firing button 12, which can then be pressed. When the stapler body 1 is not in use, pressing the cover plate 21 causes it to fall back down and lock. Then, pressing the base plate 32 applies pressure to the pressure sensor 5 below the first post 22, causing the first electromagnet 62 to attract the push block 63, opening the first cavity. 6. Both chambers 61 and 62 can be filled with hydraulic oil. Therefore, chamber 61 is compressed, which pushes the connecting block 65 and causes the sliding plate to move down. When the connecting block 65 moves to the end of chamber 61, the end of the sliding block 31 blocks the bottom of the handle 11 and the operating handle 13. At this time, the second T-shaped rod 81 is pressed, the third spring 82 is compressed, and the locking block 85 retracts into chamber 84 (the pin has a hole to cooperate with the locking block 85), releasing the lock of the base plate 32. The base plate 32 is then released by the torsion spring. When in use, flip the handle 11 and operating handle 13 to the bottom. At this time, the atomizing nozzle 4 sprays disinfectant solution, which can be alcohol. This disinfectant solution protects the handle 11, firing button 12 and operating handle 13 while also disinfecting them, reducing the risk of postoperative contamination. When you want to open it, you can press column 22 again, which will de-energize electromagnet 62. With manual operation, you can open the sliding block 31 and base plate 32. The disinfectant solution inside the base plate 32 can be replenished.

[0018] As a specific embodiment of the present invention, such as Figure 7 As shown, the cross-sectional area of ​​cavity 6 is larger than that of cavity 61. During operation, this setting allows the pusher 63 to move the baffle 21 a sufficiently long distance within a limited range of motion.

[0019] As a specific embodiment of the present invention, such as Figure 7 , Figure 8 , Figure 9 As shown, the side wall of the first cylinder 7 has a sixth cavity 9, and a third T-shaped rod 91 is slidably connected in the sixth cavity 9. The end of the third T-shaped rod 91 is fixedly connected to the sixth cavity 9 by a fourth spring 92. The side wall of the first T-shaped rod 71 has a second hole 93, and the third T-shaped rod 91 can be inserted into the second hole 93. The first electromagnet 62 can repel the third T-shaped rod 91. During operation, when electromagnet 62 is energized, T-shaped rod 71 does not need to move and the baffle plate 21 needs to remain locked. Therefore, electromagnet 62 repels T-shaped rod 91, keeping T-shaped rod 71 locked and reducing the number of times T-shaped rod 71 is pushed by push block 63. When electromagnet 62 is de-energized, T-shaped rod 71 is unlocked.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention without departing from the spirit and scope of the present invention. Any modifications or equivalent substitutions should be covered within the protection scope of the claims of the present invention.

Claims

1. An electric anastomat with an anti-misfire function, comprising: an anastomat body (1) provided with a handle (11), a firing button (12) and an operating handle (13); characterized in that the electric anastomat with an anti-misfire function further comprises: an anti-misfire unit (2) provided on the anastomat body (1), which achieves the purpose of anti-misfire by shielding the firing button (12) and can achieve the effect of protecting the firing button (12).

2. The electrically powered anastomat with a misfire prevention function according to claim 1, characterized in that: The anti-misfire unit (2) comprises: a shielding plate (21) rotatably connected to the top of the anastomat body (1) on both sides, and a torsion spring is arranged at the connection; a first column (22) fixedly arranged at both ends of one side of each shielding plate (21) facing the anastomat body (1), and a clamping block (23) is arranged at the position close to the end of the first column (22), and a clamping groove (24) matched with the first column (22) is arranged at the position corresponding to the first column (22) on both sides of the anastomat body (1).

3. The electrically powered anastomosis device with a misfire prevention function according to claim 2, wherein: Both ends of each shielding plate (21) are fixedly connected with a control block (3), a sliding block (31) is slidingly connected between the two control blocks (3) and closely adheres to the outer surface of the shielding plate (21), the end of the sliding block (31) is rotatably connected with a bottom plate (32), and a torsion spring is arranged at the connection position; the sliding block (31) and the bottom plate (32) can shield the handle (11) and the operating handle (13) and make them in a semi-enclosed state.

4. The electrically powered anastomat with a misfire prevention function according to claim 3, characterized in that: The inside of the bottom plate (32) is hollow and filled with a disinfectant solution, and the surface of the bottom plate (32) is provided with an atomizing nozzle (4).

5. The electrically powered anastomosis device with a misfire prevention function according to claim 4, wherein: The bottom of the first column (22) is provided with a pressure sensor (5); the inside of the control block (3) is provided with a first cavity (6) and a second cavity (61), the end of the first cavity (6) is fixedly connected with a first electromagnet (62), the first cavity (6) is slidably connected with a push block (63), the first electromagnet (62) and the push block (63) are fixedly connected with a first spring (64), the first cavity (6) is communicated with the second cavity (61), the second cavity (61) is slidably connected with a connecting block (65), the connecting block (65) is fixedly connected with the side wall of the sliding block (31), the both ends of the connecting block (65) and the both ends of the first cavity (6) are fixedly connected with a telescopic film (66); the inside of the control block (3) is fixedly provided with a first cylinder (7) near one end, the inside of the first cylinder (7) is slidably connected with a first T-shaped rod (71), the end of the first T-shaped rod (71) and the inner side wall of the first cylinder (7) are fixedly connected with a second spring (72), the other end of the first T-shaped rod (71) extends into the second cavity (61), the inside of the first column (22) is provided with a third cavity (73), the clamping block (23) is slidably connected in the third cavity (73), the first cylinder (7) is fixedly connected with a first pipe (74), the first pipe (74) communicates the first cylinder (7) with the third cavity (73), when the first T-shaped rod (71) is extruded, the clamping block (23) can retract into the third cavity (73); the inside of the connecting block (65) is provided with a fourth cavity (8), the fourth cavity (8) is slidably connected with a second T-shaped rod (81), the second T-shaped rod (81) and the side wall of the fourth cavity (8) are fixedly connected with a third spring (82), the other end of the second T-shaped rod (81) is exposed outside the connecting block (65), the sliding block (31) is provided with a first hole (83), the inside of the sliding block (31) is provided with a fifth cavity (84) adjacent to the first hole (83), the fifth cavity (84) is slidably connected with a locking block (85), the inside of the sliding block (31) is provided with a second pipe (86), the second pipe (86) communicates the fourth cavity (8) with the fifth cavity (84), when the second T-shaped rod (81) is pressed, the locking block (85) retracts into the fifth cavity (84); the part corresponding to the first hole (83) of the bottom plate (32) is fixedly connected with a bolt, the locking block (85) can fix the bolt.

6. The electrically powered anastomosis device with a misfire prevention function according to claim 5, wherein: The cross-sectional area of the first cavity (6) is greater than that of the second cavity (61).

7. The electrically powered anastomosis device with a misfire prevention function according to claim 6, wherein: The side wall of the first cylinder (7) is provided with a sixth cavity (9), the sixth cavity (9) is slidably connected with a third T-shaped rod (91), the end of the third T-shaped rod (91) and the sixth cavity (9) are fixedly connected with a fourth spring (92), the side wall of the first T-shaped rod (71) is provided with a second hole (93), the third T-shaped rod (91) can be inserted into the second hole (93), the first electromagnet (62) can repel the third T-shaped rod (91).