Powered endoscopic anastomosis device

Abstract

The utility model discloses electric endoscope anastomat component induction device, electric endoscope anastomat includes the body, and the sleeve mechanism of body connection, and the nail bin mechanism of rotation connection with sleeve mechanism and detachable setting in the suture assembly of nail bin mechanism, the nail bin mechanism includes the nail bin seat and the hinge of nail bin seat, the suture assembly includes the nail bin and the push nail slider of cooperation with nail bin, the induction device includes: hall sensor, its installation in the nail bin seat, the magnetic piece is set up in the suture assembly, the magnetic piece is configured as the suture assembly is loaded into the nail bin seat with hall sensor corresponding, and with the anastomat away from hall sensor after completing firing, main circuit board is set up on the support of body, and hall sensor with main circuit board signal connection. The utility model provides induction device can improve the security of operation.

Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, and specifically relates to a sensing device for an electric laparoscopic anastomosis device assembly. Background Technology

[0002] The electric laparoscopic stapler includes a body, a cannula mechanism connected to the body, a staple cartridge mechanism rotatably connected to the cannula mechanism, and a suture assembly detachably disposed within the staple cartridge mechanism. A safety mechanism must be installed within the staple cartridge mechanism to prevent accidental firing when the suture assembly is not installed within the staple cartridge mechanism.

[0003] like Figure 1 and Figure 2 As shown, in the prior art, a limiting protrusion 101 is provided on the upper end face of the staple cartridge holder 100, and a lifting surface 201 is provided on the end of the cutting blade 200 near the staple cartridge holder 100. Simultaneously, a safety protrusion 202 that cooperates with the limiting protrusion 101 is provided on the side of the cutting blade 200. When no suture assembly is installed in the staple cartridge holder 100, if the cutting blade 200 feeds, the safety protrusion 202 abuts against the limiting protrusion 101, preventing the cutting blade 200 from moving further, thus serving as a cutting safety function. When a suture assembly is installed in the staple cartridge holder 100, the staple pusher slider 300 of the suture assembly abuts against the lifting surface 201, causing the cutting blade 200 to rise. When the cutting blade 200 continues to feed, the safety protrusion 202 can pass over the limiting protrusion 101 to perform tissue cutting.

[0004] However, the aforementioned insurance mechanisms have high requirements for the machining precision of the limit bumps and safety bumps, which can easily lead to problems such as the safety not being able to unlock or accidental activation of the safety, resulting in firing failure. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a sensing device for an electric laparoscopic anastomosis device to improve surgical safety.

[0006] To overcome the shortcomings of the existing technology, the technical solution provided by this utility model is as follows:

[0007] A sensing device for an electric laparoscopic stapler assembly, the electric laparoscopic stapler comprising a body, a cannula mechanism connected to the body, a staple cartridge mechanism rotatably connected to the cannula mechanism, and a suture assembly detachably disposed within the staple cartridge mechanism, the staple cartridge mechanism comprising a staple cartridge seat and a staple abutment hinged to the staple cartridge seat, the suture assembly comprising a staple cartridge and a staple pusher slider cooperating with the staple cartridge, the sensing device comprising:

[0008] A Hall sensor is installed inside the staple cartridge.

[0009] A magnetic element is disposed within the suture assembly, the magnetic element being configured to correspond to the Hall sensor after the suture assembly is inserted into the staple cartridge seat, and to move away from the Hall sensor after the stapler completes firing;

[0010] The main circuit board is mounted on the bracket of the device body, and the Hall sensor is connected to the main circuit board for signal transmission.

[0011] In one embodiment, the staple cartridge seat has a first groove on its upper surface near the sleeve mechanism, and the Hall sensor is fixedly installed in the first groove;

[0012] The bottom surface of the head end of the push pin slider is provided with a second groove, and the magnetic component is fixedly installed in the second groove.

[0013] In one embodiment, the Hall sensor is fixed in the first groove by a snap-fit ​​connection or adhesive, and the magnetic component is fixed in the second groove by a snap-fit ​​connection or adhesive.

[0014] In one embodiment, the staple cartridge sidewall is provided with a third groove, the third groove including a first groove and a second groove arranged from near the sleeve mechanism to away from the sleeve mechanism, the second groove being deeper than the first groove. In the initial state, the magnetic element is disposed in the first groove. When the stapler is fired, the staple pusher slider can drive the magnetic element to move to the second groove and disengage from the staple pusher slider.

[0015] The side wall of the staple cartridge is provided with a fourth groove, and the Hall sensor is fixedly installed in the fourth groove.

[0016] In one embodiment, the magnetic component has a protruding rod protruding towards the push pin slider, and the push pin slider has a groove that mates with the protruding rod. The depth of the second groove is greater than the sum of the heights of the magnetic component and the protruding rod.

[0017] In one embodiment, the push pin slider has a ferromagnetic element on the side opposite to the third groove that attracts the magnetic element.

[0018] In one embodiment, the push pin slider has a fifth groove on the side opposite to the third groove, and the ferromagnetic component is an iron block and is fixed in the fifth groove.

[0019] In one embodiment, the Hall sensor is secured in the fourth groove by a snap-fit ​​connection or adhesive.

[0020] In one embodiment, the Hall sensor is connected to the main circuit board via a wire, which passes through the sleeve mechanism.

[0021] In one embodiment, the Hall sensor is wirelessly connected to the main circuit board.

[0022] Compared with the prior art, the advantages of this utility model are:

[0023] 1. A Hall sensor is installed inside the staple cartridge holder, and a magnetic component is installed on the suture assembly. When the suture assembly is not installed in the staple cartridge holder, the Hall sensor does not detect the magnetic field, and no signal is transmitted to the main circuit board, so the stapler cannot be fired. When the suture assembly is installed in the staple cartridge holder, the Hall sensor detects the magnetic component on the suture assembly and transmits the signal to the main circuit board, so the stapler can be fired. Through the cooperation of the Hall sensor and the magnetic component, the detection is sensitive and fast, avoiding accidental triggering of the safety device, which would lead to firing failure.

[0024] 2. After the stapler has finished firing, if the used suture assembly is reinstalled into the staple cartridge, the staple pusher slider will have moved the magnetic component away from the head of the staple cartridge. The Hall sensor will not detect the magnetic field, and no signal will be transmitted to the main circuit board. The stapler will not fire, thus preventing accidental secondary firing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an insurance institution in the prior art;

[0027] Figure 2 This is a schematic diagram of the structure for installing a stitching assembly inside a staple cartridge in the prior art;

[0028] Figure 3 This is a schematic diagram of the structure of the sensing device of the electric laparoscopic anastomosis device assembly of this utility model, in embodiment 1.

[0029] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the nail cartridge holder in Embodiment 1 of this utility model;

[0031] Figure 6 for Figure 5 Enlarged view of a section at point B in the middle;

[0032] Figure 7 This is a schematic diagram of the push pin slider in Embodiment 1 of this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0034] Figure 9 This is a schematic diagram of the staple cartridge structure in Embodiment 2 of this utility model;

[0035] Figure 10 This is a schematic diagram of the magnetic component in its initial state in Embodiment 2 of this utility model;

[0036] Figure 11 This is a schematic diagram of the magnetic component in Embodiment 2 of this utility model;

[0037] Figure 12 This is a schematic diagram of the nail cartridge holder in Embodiment 2 of this utility model;

[0038] Figure 13 This is a schematic diagram of the mounting structure of the Hall sensor on the staple cartridge in Embodiment 2 of this utility model;

[0039] Figure 14 This is a schematic diagram of the push pin slider in Embodiment 2 of this utility model;

[0040] Figure 15 This is a schematic diagram of the push pin slider in Embodiment 3 of this utility model;

[0041] Figure 16 This is a schematic diagram of the installation structure of the ferromagnetic component on the push pin slider in Embodiment 3 of this utility model;

[0042] in:

[0043] 100. Pin holder; 101. Limiting protrusion; 200. Cutting blade; 201. Lifting surface; 202. Safety protrusion; 300. Pin pusher slider;

[0044] 1. Body; 1-1. Support;

[0045] 2. Sleeve mechanism;

[0046] 3. Stamp cartridge mechanism; 3-1. Stamp cartridge seat; 3-1a. First groove; 3-1b. Fourth groove; 3-2. Stamp abutment;

[0047] 4. Hall effect sensor;

[0048] 5. Magnetic components; 5-1. Protruding rod;

[0049] 6. Main circuit board;

[0050] 7. Suture assembly; 7-1. Staple cartridge; 7-1a. Third groove; 7-1a1. First groove; 7-1a2. Second groove; 7-2. Staple pusher slider; 7-2a. Second groove; 7-2b. Slot; 7-2c. Fifth groove;

[0051] 8. Cutting knife;

[0052] 9. Wires;

[0053] 10. Ferromagnetic components. Detailed Implementation

[0054] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0055] Example 1

[0056] See Figure 3 and Figure 4 This is a schematic diagram of the structure of Embodiment 1 of the present utility model, which provides a sensing device for an electric laparoscopic stapler assembly. The electric laparoscopic stapler is the prior art, which includes a body 1, a cannula mechanism 2 connected to the body 1, a staple cartridge mechanism 3 rotatably connected to the cannula mechanism 2, and a suture assembly 7 detachably disposed in the staple cartridge mechanism 3. The staple cartridge mechanism 3 includes a staple cartridge seat 3-1 and a staple abutment seat 3-2 hinged to the staple cartridge seat 3-1. The suture assembly 7 includes a staple cartridge 7-1 and a staple pusher slider 7-2 that cooperates with the staple cartridge 7-1. During operation, the cutting blade 8 is driven by the driving mechanism on the body 1, and the cutting blade 8 drives the staple pusher slider 7-2 to release multiple staples in the staple cartridge 7-1 to the tissue. Suturing is completed at the same time as cutting. This is the firing process of the stapler.

[0057] The aforementioned sensing device includes a magnetic component 5 installed in the pusher slider 7-2, a Hall sensor 4 installed in the staple cartridge seat 3-1, and a main circuit board 6 mounted on the bracket 1-1 of the device body 1. The Hall sensor 4 is connected to the main circuit board 6. The control unit of the stapler is integrated on the main circuit board 6. At the same time, the drive mechanism is connected to the main circuit board 6. The Hall sensor 4 detects the position signal of the suture assembly 7 and transmits it to the main circuit board 6. The control unit controls the drive mechanism to achieve safe firing of the stapler.

[0058] like Figure 5 and Figure 6 As shown, a first groove 3-1 is provided on the upper end face of the staple cartridge seat 3-1 near the sleeve mechanism 2. The Hall sensor 4 is installed in the first groove 3-1. The Hall sensor 4 is an HQ0A11 Hall sensor and is fixed in the first groove 3-1 by adhesive.

[0059] like Figure 7 As shown, a second groove 7-2a is provided on the bottom surface of the head end of the push pin slider 7-2. The magnetic component 5 is installed in the second groove 7-2a. Preferably, the magnetic component 5 is a rectangular sheet-shaped permanent magnet, which is fixed in the second groove 7-2a with adhesive.

[0060] It should be understood that in other embodiments, the Hall sensor 4 and the magnetic component 5 can also be fixedly installed by using existing snap-fit ​​connection methods. For example, snap-fit ​​can be provided on the Hall sensor 4 and the magnetic component 5, and snap grooves that cooperate with the snap-fit ​​can be provided in the first groove 3-1 and the second groove 7-2a. The two are fixed by the cooperation of the snap-fit ​​and the snap groove (not shown).

[0061] In this example, the Hall sensor 4 is connected to the main circuit board 6 via a wire 9, which passes through the sleeve mechanism 2. It should be understood that in other embodiments, the Hall sensor 4 can also be wirelessly connected to the main circuit board 6, such as via Bluetooth or WiFi. A wireless transmitting module is provided on the Hall sensor 4, and a wireless receiving module is provided on the main circuit board 6. The wireless connection between the two is achieved through the cooperation of the wireless transmitting and receiving modules.

[0062] When the suture assembly 7 is not installed in the staple cartridge holder 3-1, the Hall sensor 4 does not sense the magnetic field, and no signal is transmitted to the main circuit board 6, so the stapler cannot fire. When the suture assembly 7 is installed in the staple cartridge holder 3-1, the Hall sensor 4 senses the magnetic element 5 on the staple pusher slider 7-2 and transmits the signal to the main circuit board 6, so the stapler can fire. After the stapler fires, the cutter 8 pushes the staple pusher slider 7-2 away from the initial position. After the stapler fires and retracts, the suture assembly 7 can be removed and a new suture assembly 7 can be installed to repeat the above operation. If the used suture assembly 7 is reinstalled in the staple cartridge holder 3-1, the staple pusher slider 7-2 has already moved the magnetic element 5 away from the head of the staple cartridge 7-1. The Hall sensor 4 cannot sense the magnetic field, and no electrical signal is transmitted to the main circuit board 6, so the stapler cannot fire, thus preventing accidental secondary firing.

[0063] Example 2

[0064] The difference from Example 1 is that the installation positions of the magnetic components and Hall sensors are different, such as... Figure 8 and Figure 9 As shown, a third groove 7-1a is provided on the side wall of the staple cartridge 7-1. This third groove 7-1a includes a first groove portion 7-1a1 and a second groove portion 7-1a2 arranged in a direction from near the sleeve mechanism 2 to away from the sleeve mechanism 2. The depth of the second groove portion 7-1a2 is greater than that of the first groove portion 7-1a1. The size of the first groove portion 7-1a1 matches the size of the magnetic component 5 to accommodate the magnetic component 5. Figure 12 and Figure 13 As shown, a fourth groove 3-1b is provided on the side wall of the staple cartridge 3-1, and the Hall sensor 4 is fixedly installed in the fourth groove 3-1b.

[0065] like Figure 11 As shown, the magnetic component 5 has a protruding rod 5-1 protruding towards the push pin slider 7-2. The magnetic component 5 has a rectangular sheet structure, and the protruding rod 5-2 is reserved during the process of cutting the original block magnet into a sheet shape. At the same time, the push pin slider 7-2 has a groove 7-2b that mates with the protruding rod 5-1 (e.g., Figure 14 As shown), the depth of the second groove 7-1a2 is greater than the sum of the heights of the magnetic component 5 and the protrusion 5-1, as... Figure 10 As shown, in the initial state, the magnetic component 5 is located in the first groove 7-1a1, and the protrusion 5-1 is fixed in the groove 7-2b of the pusher slider 7-2. The Hall sensor 4 can sense the position of the magnetic component 5. When the stapler is fired, the pusher slider 7-2 can drive the magnetic component 5 to move to the second groove 7-1a2 and separate it from the pusher slider 7-2. The pusher slider 7-2 can continue to move until the firing is completed.

[0066] If the suture assembly being used is reinstalled into the device, the magnetic component 5 is no longer in its initial position, the Hall sensor 4 cannot detect the signal, and the stapler cannot fire, in order to prevent accidental secondary firing.

[0067] Example 3

[0068] Everything else is the same as in Example 2, except that the magnetic component 5 does not have a protruding rod, such as Figure 16 As shown, a ferromagnetic element 10 is provided on the side of the pusher slider 7-2 facing the third groove 7-1a, which attracts the magnetic element 5. For example, an iron block can be used. When the stapler is fired, the ferromagnetic element 10 can drive the magnetic element 5 to move to the second groove 7-1a2.

[0069] To facilitate the installation of ferromagnetic component 10, such as Figure 15 As shown, a fifth groove 7-2c is provided on the side of the push pin slider 7-2 opposite to the third groove 7-1a, and the iron block is fixed in the fifth groove 7-2c by adhesive.

[0070] In summary, this sensing device is sensitive and fast, which can prevent accidental secondary firing and improve the safety of the operation.

[0071] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sensing device for an electric laparoscopic stapler assembly, the electric laparoscopic stapler comprising a body, a cannula mechanism connected to the body, a staple cartridge mechanism rotatably connected to the cannula mechanism, and a suture assembly detachably disposed within the staple cartridge mechanism, the staple cartridge mechanism comprising a staple cartridge seat and a staple abutment hinged to the staple cartridge seat, the suture assembly comprising a staple cartridge and a staple pusher slider cooperating with the staple cartridge, characterized in that, The sensing device includes: A Hall sensor is installed inside the staple cartridge. A magnetic element is disposed within the suture assembly, the magnetic element being configured to correspond to the Hall sensor after the suture assembly is inserted into the staple cartridge seat, and to move away from the Hall sensor after the stapler completes firing; The main circuit board is mounted on the bracket of the device body, and the Hall sensor is connected to the main circuit board for signal transmission.

2. The sensing device for the electric laparoscopic anastomosis device according to claim 1, characterized in that: The staple cartridge seat has a first groove on its upper end face near the sleeve mechanism, and the Hall sensor is fixedly installed in the first groove; The bottom surface of the head end of the push pin slider is provided with a second groove, and the magnetic component is fixedly installed in the second groove.

3. The sensing device for the electric laparoscopic anastomosis device according to claim 2, characterized in that: The Hall sensor is fixed in the first groove by snap-fit ​​connection or adhesive, and the magnetic component is fixed in the second groove by snap-fit ​​connection or adhesive.

4. The sensing device for the electric laparoscopic anastomosis device according to claim 1, characterized in that: The staple cartridge sidewall is provided with a third groove, which includes a first groove and a second groove arranged from the direction close to the sleeve mechanism to the direction away from the sleeve mechanism. The depth of the second groove is greater than that of the first groove. In the initial state, the magnetic element is disposed in the first groove. When the stapler is fired, the staple pusher slider drives the magnetic element to move to the second groove and disengage from the staple pusher slider. The side wall of the staple cartridge is provided with a fourth groove, and the Hall sensor is fixedly installed in the fourth groove.

5. The sensing device for the electric laparoscopic anastomosis device according to claim 4, characterized in that: The magnetic component has a protruding rod protruding towards the push pin slider, and the push pin slider has a groove that cooperates with the protruding rod. The depth of the second groove is greater than the sum of the heights of the magnetic component and the protruding rod.

6. The sensing device for the electric laparoscopic stapler assembly according to claim 4, characterized in that: The push pin slider is provided with a ferromagnetic element on the side opposite to the third groove, which attracts the magnetic element.

7. The sensing device for the electric laparoscopic stapler assembly according to claim 6, characterized in that: The push pin slider has a fifth groove on the side opposite to the third groove, and the ferromagnetic component is an iron block and is fixed in the fifth groove.

8. The sensing device for the electric laparoscopic anastomosis device according to claim 4, characterized in that: The Hall sensor is connected by a snap-fit ​​or fixed in the fourth groove.

9. The sensing device for the electric laparoscopic stapler assembly according to any one of claims 1 to 8, characterized in that: The Hall sensor is connected to the main circuit board via a wire, which passes through the sleeve mechanism.

10. The sensing device for the electric laparoscopic stapler assembly according to any one of claims 1 to 8, characterized in that: The Hall sensor is wirelessly connected to the main circuit board.

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