A device with a function of detecting anti-leakage nails

Abstract

The present invention relates to the technical field of medical devices for surgical anastomosis, and particularly relates to a device with a function of detecting anti-leakage nails, which includes a staple cartridge cover and a staple cartridge. The staple cartridge cover can cover the upper part of the staple cartridge, and the staple cartridge cover is adapted to the staple cartridge. A positioning device and a staple groove are arranged on the staple cartridge, and suture nails for stapling are arranged in the staple groove. The staple cartridge cover includes a flat plate-shaped body. A to-be-positioned device and a limiting hole are arranged on the flat plate-shaped body. The position of the limiting hole corresponds to the staple groove on the staple cartridge. A vertically movable limiting block is arranged in the limiting hole, and the limiting block can slide into the staple groove without suture nails. The positioning device is adapted to the to-be-positioned device. The present invention avoids the defect of missing nails caused by omission of installation, eliminates the huge potential hazard of the defect of missing nails to the surgical risk, and ensures the reliability of the finished stapler.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices for surgical anastomosis, and particularly relates to a device with a function of detecting leakage-preventing nails applicable to a stapler. Background Art

[0002] During surgery, a stapler is often used to simultaneously cut and suture a wound. Medical staples are required for suturing, and the current mainstream medical staples are titanium staples. When the surgery is in progress, the firing member of the stapler fires the staple cartridge to complete the suturing of the wound with the medical staples.

[0003] However, there are the following deficiencies in the process of loading medical staples into the staple cartridge: The vast majority of the current mainstream medical staples are loaded into the staple cartridge manually. The operator uses tweezers to place the medical staples in the slots inside the staple cartridge. Such a working efficiency is low, and the manual method is prone to fatigue, resulting in defects such as missed installation, which may cause staple leakage and improper installation position. In order to reduce these defects, additional manual inspection is required, but the inspection efficiency is also limited by manpower and is not high; moreover, there are still a very small number that cannot be completely avoided. However, any defect of staple leakage poses a huge hidden danger to the risk of surgery. It is very necessary to completely eliminate risks and hidden dangers. Different from other industries, other industries only need to reduce risks, but the medical device industry requires zero risk. Any improvement that is beneficial to zero risk in the medical device industry is a significant technological progress.

[0004] Currently, a small number of medical staples are assembled in the staple cartridge by equipment, which, to varying degrees, solves the efficiency problem. During the automated assembly process, with comparison and detection such as images, the risks of manual assembly and manual inspection can be reduced. Many manufacturers are extremely prone to the situation of missing titanium staples in the staple cartridge due to the lack of necessary detection means during the production process. Once there is a situation of missing titanium staples during use, there is a high probability of causing the failure of the entire surgery and even posing a great threat to the life safety of the patient. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above deficiencies in the prior art and provide a device with a function of detecting leakage-preventing nails that can greatly ensure the reliability of the finished stapler.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows:

[0007] A device with a nail leakage prevention detection function comprises a nail magazine cover and a nail magazine, wherein the nail magazine cover can cover the top of the nail magazine and is adapted to the nail magazine; a positioning device and a nail groove are provided on the nail magazine, wherein suture nails for binding are installed in the nail groove; the nail magazine cover comprises a flat plate-shaped body, wherein a device to be positioned and a limiting hole are provided on the flat plate-shaped body, wherein the position of the limiting hole corresponds to the nail groove on the nail magazine, wherein a limiting block movable up and down is installed in the limiting hole, wherein the limiting block can slide into a nail groove without suture nails installed; and the positioning device is adapted to the device to be positioned.

[0008] Furthermore, blocking devices are provided at both ends of the limit block to prevent the limit block from sliding out of the flat plate-shaped body.

[0009] Preferably, the blocking device can be a buckle or a small undercut. More preferably, the buckle or the small undercut is elastic and can slide in the hole but will not fall out of the hole after being pressed into the limiting hole.

[0010] Furthermore, the size and shape of the stopper at the end of the limit block are consistent with the nail groove.

[0011] Furthermore, the flat plate-shaped body is provided with a handle extending outward, which makes the assembly and disassembly of the nail magazine cover more convenient.

[0012] Preferably, the edge of the handle is provided with a bump, which can prevent hand slippage when assembling or disassembling the nail magazine cover.

[0013] Preferably, the nail magazine cover has a certain elasticity and is easy to assemble and disassemble.

[0014] The present invention installs a limiting block in the limiting hole of the nail magazine cover, and the limiting block can slide up and down in the limiting hole. If the nail slot of the nail magazine is not equipped with titanium nails (i.e. suture nails), the limiting block can slide in the nail slot. If the nail slot of the nail magazine is equipped with titanium nails, the limiting block cannot slide in the nail slot due to being blocked by the titanium nails.

[0015] During normal instrument assembly, after the stapling process, a nail magazine cover is put on the nail magazine. If there are no missing nails in the nail slot of the nail magazine, the limit block on the nail magazine cover cannot enter the nail slot of the nail magazine due to being blocked by the titanium nail. At this time, the height of the limit block will be much higher than the flat body. If there are missing nails in one or more nail slots of the nail magazine, the corresponding limit block will slide into the nail slot. At this time, the height of the limit block will be basically the same as the flat body, which is much lower than the limit block corresponding to the nail slot without missing nails. The assembler can detect whether there are missing nails by observing the height of the limit block on the nail magazine cover.

[0016] The present invention is not only applicable to circular tubular staplers, but also applicable to linear staplers.

[0017] Beneficial effects:

[0018] The device with the function of detecting missing anti-leakage nails of the present invention can automatically detect whether the titanium nails are missing during the installation of the instrument. Once the titanium nails are missing, the limiting block on the nail cartridge cover will enter the nail groove of the nail cartridge, resulting in an obvious change in height, thus reminding the assembler that the titanium nails are missing. The invention avoids the defect of missing nails caused by missing installation, eliminates the huge hidden danger of the defect of missing nails to the surgical risk, and ensures the reliability of the stapler finished product. Description of the drawings

[0019] Figure 1 It is a schematic structural diagram of the nail cartridge cover of a linear stapler;

[0020] Figure 2 It is a state diagram of the linear stapler without missing nails;

[0021] Figure 3 It is a schematic structural diagram of the nail cartridge of a circular tube type stapler;

[0022] Figure 4 It is a schematic structural diagram of the nail cartridge cover of a circular tube type stapler;

[0023] Figure 5 It is a schematic structural diagram of the nail cartridge assembly of a circular tube type stapler;

[0024] Figure 6 It is a state diagram of the circular tube type stapler without missing nails;

[0025] Figure 7 It is a state diagram of the circular tube type stapler with missing nails;

[0026] Description of reference numerals: 1, nail barrel; 2, nail cartridge; 3, nail cartridge cover; 4, nail groove; 5, positioning device; 6, suture nail; 7, flat plate-shaped body; 8, limiting hole; 9, limiting block; 10, device to be positioned; 11, handle. Detailed implementation manners

[0027] The following describes the present invention in detail with specific embodiments.

[0028] Embodiment 1:

[0029] As Figure 1 and 2A device with a nail leakage prevention detection function shown in the figure comprises a nail magazine cover 3 and a nail magazine 2, wherein the nail magazine cover 3 can cover the top of the nail magazine 2, and the nail magazine cover 3 is adapted to the nail magazine 2; a positioning device 5 and a nail groove 4 are provided on the nail magazine 2, and a suture nail 6 for binding is built in the nail groove 4; the nail magazine cover 3 comprises a flat plate-shaped body 7, a device to be positioned 10 and a limiting hole 8 are provided on the flat plate-shaped body 7, and the position of the limiting hole 8 corresponds to the nail groove 4 on the nail magazine 2, and a limiting block 9 which can move up and down is installed in the limiting hole 8, and the limiting block 9 can slide into the nail groove 4 without the suture nail 6; the positioning device 5 is adapted to the device to be positioned 10.

[0030] During normal instrument assembly, after the stapling process, the staple cartridge cover 3 is put on the staple cartridge 2. If there is no missing nail in the staple slot 4 of the staple cartridge 2, the limiting block 9 on the staple cartridge cover 3 cannot enter the staple slot 4 of the staple cartridge 2 due to being blocked by the titanium nail (i.e., the suture nail 6). At this time, the height of the limiting block 9 will be much higher than the flat body 7. If there is a missing nail in one or more staple slots 4 of the staple cartridge 2, the corresponding limiting block 9 will slide into the staple slot 4. At this time, the height of the limiting block 9 will be basically the same as the flat body 7, which is much lower than the limiting block 9 corresponding to the staple slot 4 without missing nails. The assembler can detect whether there is a missing nail by observing the position of the limiting block 9 on the staple cartridge cover 3.

[0031] Embodiment 2:

[0032] like Figure 1 and 2 A device with a nail leakage prevention detection function shown in the figure comprises a nail magazine cover 3 and a nail magazine 2, wherein the nail magazine cover 3 can cover the top of the nail magazine 2, and the nail magazine cover 3 is adapted to the nail magazine 2; a positioning device 5 and a nail groove 4 are provided on the nail magazine 2, and a suture nail 6 for binding is built in the nail groove 4; the nail magazine cover 3 comprises a flat plate-shaped body 7, a device to be positioned 10 and a limiting hole 8 are provided on the flat plate-shaped body 7, and the position of the limiting hole 8 corresponds to the nail groove 4 on the nail magazine 2, and a limiting block 9 which can move up and down is installed in the limiting hole 8, and the limiting block 9 can slide into the nail groove 4 without the suture nail 6; the positioning device 5 is adapted to the device to be positioned 10.

[0033] Preferably, blocking devices are provided at both ends of the limit block 9 to prevent the limit block 9 from sliding out of the flat plate-shaped body 7 .

[0034] Preferably, the blocking device can be a buckle or a small undercut. More preferably, the buckle or the small undercut is elastic, and after being pressed into the limiting hole 8, the limiting block 9 can slide in the hole but will not fall out of the limiting hole 8.

[0035] Preferably, the size and shape of the blocking device at the end of the limit block 9 are consistent with the nail groove 4. When the nail groove 4 is missing a suture nail 6, the limit block 9 will slide into the nail groove 4, and the height of the limit block 9 corresponding to the missing nail will be much lower than that without missing nails.

[0036] Embodiment 3:

[0037] like Figure 1 and 2 A device with a nail leakage prevention detection function shown in the figure comprises a nail magazine cover 3 and a nail magazine 2, wherein the nail magazine cover 3 can cover the top of the nail magazine 2, and the nail magazine cover 3 is adapted to the nail magazine 2; a positioning device 5 and a nail groove 4 are provided on the nail magazine 2, and a suture nail 6 for binding is built in the nail groove 4; the nail magazine cover 3 comprises a flat plate-shaped body 7, a device to be positioned 10 and a limiting hole 8 are provided on the flat plate-shaped body 7, and the position of the limiting hole 8 corresponds to the nail groove 4 on the nail magazine 2, and a limiting block 9 which can move up and down is installed in the limiting hole 8, and the limiting block 9 can slide into the nail groove 4 without the suture nail 6; the positioning device 5 is adapted to the device to be positioned 10.

[0038] Preferably, the two ends of the limit block 9 are provided with a blocking device to prevent the limit block 9 from sliding out of the flat plate-shaped body 7. The blocking device can be a buckle or a small undercut. More preferably, the buckle or small undercut is elastic, and after being pressed into the limit hole 8, the limit block 9 can slide in the hole but will not fall out of the limit hole 8.

[0039] Preferably, the size and shape of the blocking device at the end of the limit block 9 are consistent with the nail groove 4. When the nail groove 4 is missing a suture nail 6, the limit block 9 will slide into the nail groove 4, and the height of the limit block 9 corresponding to the missing nail will be much lower than that without missing nails.

[0040] Preferably, the flat plate-shaped body 7 is provided with a handle 11 extending outward. The provision of the handle 11 makes the assembly and disassembly of the staple cartridge cover 3 more convenient.

[0041] More preferably, Figure 4 The edge of the handle 11 is provided with a projection. The edge of the handle 11 is provided with a projection to prevent hand slippage when assembling or disassembling the nail magazine cover 3.

[0042] Preferably, the nail magazine cover 3 has a certain elasticity and is easy to assemble and disassemble.

[0043] like Figures 3 - 7As shown, the present invention is applicable not only to linear staplers but also to circular staplers. The circular stapler includes a cartridge assembly and an anvil assembly. The anvil assembly includes an anvil shaft and an anvil. The cartridge assembly includes a cartridge barrel 1 and a cartridge 2 fixed above the cartridge barrel 1. In order to adapt to the circular stapler, a through hole for the anvil shaft to pass through can be provided on the flat body 7 of the cartridge cover 3; the diameter of the through hole is greater than or equal to the anvil shaft. The positioning device 5 can be set as a groove, and the device to be positioned 10 can be set as a boss.

[0044] As Figure 2 , 6 , as shown in Figure 7, the cartridge cover 3 is sleeved on the cartridge 2. A boss for positioning is provided on the cartridge cover 3, and a groove adapted to the boss is provided on the cartridge 2. During assembly, the positioning boss and the groove are correspondingly clamped together, and the positions of the limit hole 8 on the cartridge cover 3 and the staple groove 4 on the cartridge 2 are also correspondingly aligned; since the shapes and sizes of the limit hole 8 and the staple groove 4 are the same, in the state where no titanium staples are installed in the staple groove 4 (as Figure 7 shown), the limit block 9 can freely slide in the limit hole 8 and the staple groove 4; at this time, the limit block 9 is slightly lower than the flat body 7 or is substantially flush with the flat body 7. When titanium staples are installed in the staple groove 4 (as Figure 6 or Figure 2 shown), since the two legs of the titanium staple are attached to both sides of the staple groove 4, the limit block 9 will be blocked by the legs and cannot slide into the cartridge 2; at this time, the limit block 9 is much higher than the flat body 7.

[0045] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A device with a leak-proof nail detection function, comprising a nail magazine cover and a nail magazine, characterized in that: The nail magazine cover can cover the nail magazine, and the nail magazine cover is adapted to the nail magazine; the nail magazine is provided with a positioning device and a nail groove, and the nail groove is equipped with suture nails; the nail magazine cover comprises a flat plate-shaped body, and the flat plate-shaped body is provided with a device to be positioned and a limiting hole, the position of the limiting hole corresponds to the nail groove on the nail magazine, and a limiting block that can move up and down is installed in the limiting hole, and the limiting block can slide into the nail groove without suture nails; the positioning device is adapted to the device to be positioned; The two ends of the limit block are provided with blocking devices to prevent the limit block from sliding out of the flat plate-shaped body; The flat plate-shaped body is provided with a handle extending outwards.

2. The device with a leak-proof nail detection function according to claim 1, characterized in that: The blocking device can be a buckle or a small buckle.

3. A device with a leak-proof nail detection function according to claim 1, characterized in that: The size and shape of the stopper at the end of the limit block are consistent with those of the nail groove.

4. The device with a leak-proof nail detection function according to claim 1, characterized in that: The edge of the handle is provided with a protrusion.

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