Nail bin assembly matched with radio frequency anastomat

Abstract

The nail bin assembly comprises a metal pressing piece, a nail pushing piece, a plurality of titanium nails, nail pressing pieces and a nail bin, the number of the nail pressing pieces is equal to that of the titanium nails, the metal pressing piece is buckled above the nail bin, and a cavity for containing the nail pushing piece, the titanium nails and the nail pressing pieces is formed between the metal pressing piece and the nail bin. The nail pushing pieces are movably arranged in a cavity formed by the metal pressing piece and the nail bin, one nail pressing piece is arranged above each titanium nail, and the nail pushing pieces push the nail pressing pieces to enable the titanium nails located below the nail pressing pieces to penetrate out of the nail bin downwards. The nail bin assembly is different from a traditional anastomat nail bin assembly, operation smoke can be treated from the source, namely, smoke and water mist treatment is conducted instantly when smoke is generated in an operation, harmful smoke is directly absorbed, water vapor is settled, and the nail bin assembly is different from an existing treatment and absorption device in the spreading process of the operation smoke; and adverse effects caused by diffusion of harmful gases can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of radio frequency staplers, and in particular to a staple cartridge assembly adapted for a radio frequency stapler. Background Art

[0002] Radiofrequency electrosurgical unit and electric stapler are commonly used medical devices in modern minimally invasive surgery. Radiofrequency electrosurgical unit generates heat effect through high-frequency electric current to achieve open tissue cutting and coagulation. Electric staplers are generally used in laparoscopic surgery, so radiofrequency staplers that combine high-frequency electrosurgical unit with electric staplers can achieve better cutting and hemostasis in abdominal surgery. However, during the operation, radiofrequency electrosurgical unit will produce a large amount of smoke, which will instantly fill the abdominal cavity, interfere with the doctor's precise observation and operation of the surgical site, and greatly increase the difficulty and risk of the operation. At the same time, if the surgical smoke is inhaled by the doctor in large quantities, the harmful substances in it will seriously threaten the doctor's health, and long-term exposure may cause respiratory diseases and other health problems.

[0003] Currently in clinical practice, one way to solve the smoke problem is to use an external smoking device. This type of device is usually large in size, and when used to absorb smoke in the air, the smoking device is usually connected to a thick absorption tube. The smoke is absorbed only after it has spread widely, and the generated smoke cannot be absorbed promptly and effectively. Harmful particles are already widely distributed in the air, which will still cause smoke to cause harm to the human body. Another way is to add more openings and connect an external device for suction through a drainage tube. Although this can alleviate the smoke problem to a certain extent, this method still cannot clarify the surgical field of view in time during the smoke generation process, and increases the complexity of the operation.

[0004] Therefore, there is currently no fast and efficient smoke removal device specifically for use with a radiofrequency stapler, and existing methods all absorb smoke during its propagation, making it difficult to quickly remove smoke during cutting and hemostasis in laparoscopic surgery. Summary of the invention

[0005] In order to improve the problems raised in the above background technology, the present application provides a staple cartridge assembly adapted for a radio frequency stapler.

[0006] The present application provides a stapler assembly adapted for a radio frequency stapler using the following technical solution: A nail magazine assembly suitable for a radio frequency stapler comprises a metal pressing plate, a nail pushing plate, a plurality of titanium nails, nail pressing plates of the same number as the number of titanium nails, and a nail magazine, wherein the metal pressing plate is buckled on the top of the nail magazine, and a cavity for accommodating the nail pushing plate, the titanium nails and the nail pressing plate is formed between the metal pressing plate and the nail magazine, the nail pushing plate is movably arranged in the cavity formed by the metal pressing plate and the nail magazine, a nail pressing plate is arranged above each of the titanium nails, and the nail pushing plate pushes the nail pressing plate so that the titanium nails located below the nail pressing plate pass downward out of the nail magazine; the nail magazine is arranged as a multi-layer structure symmetrical on both sides, the innermost layers of the nail magazine on the left and right sides of the nail magazine and the middle layers of the nail magazine on the left and right sides of the nail magazine are both arranged as porous structures, and a silicon dioxide coating is arranged on the outer wall of the multi-layer structure of the nail magazine, and the smoke generated during the cutting process of the radio frequency stapler is adsorbed by the nail magazine; the water vapor generated during the cutting process of the radio frequency stapler is condensed by heat conduction through the metal pressing plate.

[0007] Furthermore, the height of the middle layer of the nail magazine is smaller than the height of the innermost layer of the nail magazine, and a plurality of openings penetrating the side walls are formed on the innermost layer and the middle layer of the nail magazine, and the apertures of the openings formed on the side walls of the innermost layer and the middle layer of the nail magazine decrease from bottom to top, and a plurality of openings with a certain depth are also formed on the top wall of the middle layer of the nail magazine.

[0008] Furthermore, the metal pressing plate is configured as a pressing plate structure made of copper, and a titanium dioxide film is disposed on the inner wall of the metal pressing plate.

[0009] The present application also provides a radiofrequency stapler using the above-mentioned staple cartridge assembly, and adopts the following technical solution: A radio frequency stapler comprises a staple magazine seat, a staple magazine assembly, a staple anvil seat and a cutter head, wherein the staple magazine seat and the staple anvil seat are cooperatively connected to form a shell structure for accommodating the staple magazine assembly and the cutter head, and an opening is formed on the side of the shell structure so that tissue can extend into the staple magazine assembly through the opening on the shell structure, the cutter head is movably arranged in the middle of the staple magazine, and during the movement of the cutter head, the tissue extending into the staple magazine assembly is cut by radio frequency energy, and one end of the cutter head facing the staple pushing sheet is clamped and connected to the staple pushing sheet, so that the staple pushing sheet is driven to translate by the cutter head and cooperates with titanium nails and a staple pressing sheet to staple the tissue.

[0010] Furthermore, a space enclosing smoke and water vapor is formed between the metal pressing sheet, the staple cartridge, the cutter head and the stapled tissue.

[0011] The beneficial technical effects of the present application are as follows: the stapler assembly in the present application is different from the traditional stapler stapler assembly, and adds the function of absorbing the smoke and treating the water vapor generated during the cutting process of the radio frequency stapler; and the stapler assembly can also treat the surgical smoke from the source, that is, immediately treat the smoke and water mist at the moment the smoke is generated during the operation, directly absorb the harmful smoke and precipitate the water vapor, which is different from the existing surgical smoke treatment and absorption device during the propagation process, and can reduce the adverse effects caused by the diffusion of harmful gases.

[0012] The radio frequency stapler using the staple cartridge assembly in the present application can handle smoke and harmful gases in real time during surgery, avoiding interference of smoke with the surgical field of view, thereby ensuring that each cutting and coagulation action can be performed accurately and without error, enhancing its applicability in complex surgeries; in addition, the radio frequency stapler using the staple cartridge assembly in the present application does not require additional openings to insert suction tubes to handle smoke, and does not require waiting for a clear field of view, and the cutting and stapling effects can be checked immediately to proceed to the next step, which is particularly suitable for complex surgical procedures and saves valuable time for doctors and patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the exploded structure of a stapler cartridge assembly adapted for a radio frequency stapler according to an embodiment of the present application; Figure 2 yes Figure 1 A schematic diagram of the structure of the stapler cartridge assembly of the mid-matching radiofrequency stapler after assembly; Figure 3 is a schematic diagram of the structure of a nail magazine in an embodiment of the present application; Figure 4 is a schematic diagram of smoke and water mist absorption in a nail magazine in an embodiment of the present application; Figure 5 is a schematic structural diagram of a radiofrequency stapler including a staple cartridge assembly in the present application; Figure 6 yes Figure 5 Cross-sectional view of the radiofrequency stapler.

[0014] Figure numerals: 1. nail magazine seat; 2. nail magazine assembly; 2-1. metal pressure plate; 2-2. nail pushing plate; 2-3. titanium nail; 2-4. nail pressing plate; 2-5. nail magazine; 2-5-1. innermost layer of nail magazine; 2-5-2. middle layer of nail magazine; 3. tissue; 4. nail support seat; 5. blade head. DETAILED DESCRIPTION

[0015] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0016] The present application embodiment discloses a stapler assembly adapted for a radio frequency stapler. Figures 1 to 4 The nail magazine assembly 2 includes a metal pressing plate 2-1, a nail pushing plate 2-2, a plurality of titanium nails 2-3, nail pressing plates 2-4 equal in number to the number of titanium nails 2-3, and a nail magazine 2-5. The metal pressing plate 2-1 is buckled on the top of the nail magazine 2-5, and a cavity for accommodating the nail pushing plate 2-2, the titanium nails 2-3 and the nail pressing plate 2-4 is formed between the metal pressing plate 2-1 and the nail magazine 2-5. A nail pressing plate 2-4 is arranged above each of the titanium nails 2-3, and the nail pushing plate 2-2 is movably arranged in the cavity formed by the metal pressing plate 2-1 and the nail magazine 2-5, and the pushing of the nail pressing plate 2-4 during the movement of the nail pushing plate 2-2 can enable the titanium nails 2-3 located below the corresponding nail pressing plate 2-4 to be pushed downward out of the nail magazine 2-5 and stapled to the human body tissue 3.

[0017] In order to avoid the influence of water vapor generated during the operation on the doctor, the metal pressing plate 2-1 in this embodiment can adopt a pressing plate structure with good thermal conductivity such as copper, and a layer of titanium dioxide film can be set on the inner wall of the metal pressing plate 2-1. During the operation, the moisture in the human body's tissue 3 will evaporate to produce water vapor, and the water vapor will encounter the metal pressing plate 2-1 when it goes up. When the water vapor contacts the low-temperature surface of the metal pressing plate 2-1, the water molecules in the water vapor begin to gather together due to the drop in temperature. When the water molecules in the water vapor gather to a certain extent, the force between the molecules increases, causing the water molecules in the water vapor to gather into water droplets. Moreover, the titanium dioxide film on the inner wall of the metal pressing plate 2-1 has the surface effect of nanomaterials, that is, its specific surface area is large, and the percentage of surface atoms is large, resulting in insufficient coordination of atoms on its surface and high surface energy. This surface effect may make it easier for water vapor to condense into water droplets on the surface of the titanium dioxide film; on the other hand, the titanium dioxide film has a certain hydrophilicity, which also makes it easier for water vapor to be adsorbed and condensed into water droplets when it contacts the surface of the film. The hydroxyl (-OH) group on the surface of the titanium dioxide film is the key factor for its hydrophilicity. In the natural state, the titanium dioxide surface will adsorb water molecules in the air to form a layer of water film, making it hydrophilic. These hydroxyl groups can form hydrogen bonds with water molecules, thereby enhancing the interaction between the titanium dioxide film and water molecules.

[0018] In addition, titanium dioxide coating has antibacterial properties, which can decompose bacteria on the surface of the coating, keeping the surface of the equipment clean and hygienic. This antibacterial property is particularly important for medical devices, helping to reduce the risk of cross infection.

[0019] In order to avoid the influence of smoke generated during the operation on the doctor, the nail magazine 2-5 is set as a multi-layer structure symmetrical on the left and right sides, and a silicon dioxide coating is provided on the outer wall of the multi-layer structure of the nail magazine 2-5. The innermost layer 2-5-1 of the nail magazine on the left and right sides of the nail magazine 2-5 and the middle layer 2-5-2 of the nail magazine on the left and right sides of the nail magazine 2-5 are both set as porous structures. The porous structure is composed of a plurality of openings penetrating the side walls of the nail magazine innermost layer 2-5-1 and the middle layer 2-5-2 of the nail magazine, and a plurality of openings with a certain depth are also formed on the top wall of the middle layer 2-5-2 of the nail magazine. During the operation, the protein in the tissue 3 of the human body is deformed to produce smoke particles, and the smoke particles will enter the nail magazine 2-5 during the downward process. The silica coating provided on the outer wall of the multilayer structure of the nail bin 2-5 can capture the smoke particles at the entrance of the micropores on the surface of the silica coating, while smaller particles may further penetrate into the micropores. As the adsorption proceeds, the micropores on the surface of the coating are gradually filled to form a dense layer of smoke. In addition, when the smoke particles pass through the silica coating, they will be affected by the diffusion effect, gradually diffuse into the coating and settle down. This diffusion and deposition effect helps to further improve the smoke particle adsorption capacity of the silica coating. The surface tension of the silica coating can also exert a certain attraction on the smoke particles, making them more easily attached to the coating surface.

[0020] In this embodiment, in order to enable the nail bin 2-5 to better adsorb smoke particles, the openings formed on the side walls of the innermost layer 2-5-1 of the nail bin and the middle layer 2-5-2 of the nail bin have a reduced aperture from bottom to top, thereby ensuring that large smoke particles can enter the multi-layer, porous structure of the nail bin 2-5; in addition, the height of the middle layer 2-5-2 of the nail bin is slightly smaller than the height of the innermost layer 2-5-1 of the nail bin, so that smoke particles can be trapped in the multi-layer structure of the nail bin 2-5. The setting of the opening structure on the side walls of the innermost layer 2-5-1 of the nail bin and the middle layer 2-5-2 of the nail bin enables smoke particles to pass through each layer of the nail bin 2-5 more easily, thereby increasing the contact opportunity between the particles and the silica coating on the surface of the nail bin 2-5. This enhanced fluidity helps to improve the capture efficiency of smoke particles. In addition, the opening structure not only provides a channel for smoke particles to enter the interior of the adsorbent, but also optimizes the capture effect by changing the flow path and velocity distribution of the particles. In particular, the openings of a certain depth on the top wall of the nail magazine intermediate layer 2-5-2 can more effectively capture smaller particles that attempt to escape, thereby improving the overall adsorption efficiency. In addition, during the subsequent maintenance process, the design of the opening structure makes it easier to clean the nail magazine 2-5, thereby reducing maintenance costs and time.

[0021] In addition, silica nanoparticles have high chemical stability and corrosion resistance. In the preparation process of silica anti-corrosion coating, silica nanoparticles are dispersed in an organic solvent and then sprayed on the metal surface. After spraying, the solvent evaporates and the silica particles form a uniform coating to protect the metal surface. The silica anti-corrosion coating can effectively resist the erosion of corrosive media such as acids and alkalis, providing long-term corrosion protection. In addition, due to the high hardness of silica particles, the coating can improve the hardness and wear resistance of the material and extend its service life.

[0022] See also Figure 5 and Figure 6The radio frequency stapler using the above-mentioned staple magazine assembly 2 also includes a staple magazine seat 1, a staple support seat 4 and a cutter head 5. The staple magazine seat 1 and the staple support seat 4 are connected in cooperation to form a shell structure that accommodates the staple magazine assembly 2 and the cutter head 5. An opening is formed on the side of the shell structure, so that the human tissue 3 can extend into the staple magazine assembly 2 through the opening on the shell structure. The cutter head 5 is movably arranged in the middle of the staple magazine 2-5, and the radio frequency energy can be used to cut the tissue 3 extending into the staple magazine assembly 2 during the movement of the cutter head 5. The cutter head 5 usually includes two electrodes, and a high-frequency current can be generated between the two electrodes, and resistive heat will be generated between the tissue 3, causing the tissue to heat up and gradually soften. As the cutter head 5 moves, the high-frequency current and the heat energy work together to achieve the cutting of the tissue 3. While cutting, hemostasis and coagulation effects can also be achieved to reduce bleeding and exudation during the operation. One end of the blade head 5 facing the nail pushing piece 2-2 is fixedly connected with the nail pushing piece 2-2. During the cutting movement of the blade head 5, the nail pushing piece 2-2 can be driven by the blade head 5 to translate and cooperate with the titanium nail 2-3 and the nail pressing piece 2-4 to staple the tissue 3 on both sides of the cut. During the above operation, a closed space that traps smoke and water vapor can be formed between the metal pressing piece 2-1, the nail magazine 2-5, the blade head 5 and the stapled tissue 3.

[0023] The stapler assembly provided by the present invention is specially used in conjunction with a high-frequency radio frequency stapler. By innovatively designing its structure and introducing absorbable materials, it is possible to effectively trap the smoke generated at the moment of radio frequency electrosurgical cutting. The absorbable material can quickly adsorb and absorb large particles of smoke and harmful gases, thereby effectively treating the smoke at the source of its generation. This design can significantly reduce the presence of smoke in the surgical field of view, ensuring that the doctor always has a clear surgical field of view during the operation, which is conducive to completing the surgical operation accurately and efficiently and reducing the risk of surgery. In addition, reducing the amount of smoke generated and the diffusion of harmful gases from the source effectively protects the health and safety of doctors during the operation, reduces health risks caused by inhaling smoke, improves the safety and comfort of the operating environment, and provides strong technical support and guarantee for the smooth conduct of surgical operations.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stapler cartridge assembly adapted for a radiofrequency stapler, comprising a plurality of titanium staples (2-3) and staple pressing sheets (2-4) whose number is equal to the number of the titanium staples (2-3), characterized in that: It also includes a metal pressing sheet (2-1), a nail pushing sheet (2-2) and a nail magazine (2-5). The metal pressing plate (2-1) is buckled on the top of the nail magazine (2-5), and a cavity for accommodating the nail pushing plate (2-2), the titanium nail (2-3) and the nail pressing plate (2-4) is formed between the metal pressing plate (2-1) and the nail magazine (2-5), and a nail pressing plate (2-4) is arranged above each of the titanium nails (2-3). The nail pushing plate (2-2) is movably arranged in the cavity formed by the metal pressing plate (2-1) and the nail magazine (2-5), and the nail pushing plate (2-2) pushes the nail pressing plate (2-4) so ​​that the titanium nail (2-3) located below the nail pressing plate (2-4) passes downward out of the nail magazine (2-5); The staple cartridge (2-5) is configured as a multi-layer structure symmetrical on both sides, the innermost layers (2-5-1) of the staple cartridge on both sides of the staple cartridge (2-5) and the middle layers (2-5-2) of the staple cartridge on both sides of the staple cartridge (2-5) are configured as porous structures, and a silicon dioxide coating is provided on the outer wall of the multi-layer structure of the staple cartridge (2-5), so that smoke generated during the cutting process of the radio frequency stapler is absorbed by the staple cartridge (2-5); The water vapor generated during the cutting process of the radiofrequency stapler is condensed through heat conduction of the metal pressing sheet (2-1).

2. A stapler cartridge assembly adapted for a radio frequency stapler according to claim 1, characterized in that: The innermost layer (2-5-1) of the nail magazine and the middle layer (2-5-2) of the nail magazine are both formed with a plurality of openings penetrating the side walls thereof, and the openings formed on the side walls of the innermost layer (2-5-1) of the nail magazine and the middle layer (2-5-2) of the nail magazine have apertures that decrease from bottom to top.

3. A stapler cartridge assembly adapted for a radio frequency stapler according to claim 2, characterized in that: The height of the nail magazine middle layer (2-5-2) is smaller than the height of the innermost layer (2-5-1) of the nail magazine.

4. A stapler cartridge assembly adapted for a radio frequency stapler according to claim 3, characterized in that: A plurality of openings with a certain depth are also formed on the top wall of the nail magazine intermediate layer (2-5-2).

5. A stapler cartridge assembly adapted for a radio frequency stapler according to any one of claims 1 to 4, characterized in that: The metal pressing sheet (2-1) is configured as a pressing sheet structure made of copper.

6. A stapler cartridge assembly adapted for a radio frequency stapler according to claim 5, characterized in that: A titanium dioxide film is provided on the inner wall of the metal pressing sheet (2-1).

7. A radiofrequency stapler, comprising a staple cartridge seat (1), a staple anvil seat (4) and a knife head (5), characterized in that: It also includes the nail magazine assembly (2) according to any one of claims 1 to 6, wherein the nail magazine seat (1) and the nail support seat (4) are connected in a cooperative manner to form a shell structure that accommodates the nail magazine assembly (2) and the cutter head (5), and an opening is formed on the side of the shell structure so that the tissue (3) can extend into the nail magazine assembly (2) through the opening on the shell structure, and the cutter head (5) is movably arranged in the middle of the nail magazine (2-5), and during the movement of the cutter head (5), the tissue (3) extending into the nail magazine assembly (2) is cut by radio frequency energy, and one end of the cutter head (5) facing the nail pushing sheet (2-2) is fixedly connected to the nail pushing sheet (2-2), so that the nail pushing sheet (2-2) is driven by the cutter head (5) to translate and cooperate with the titanium nails (2-3) and the nail pressing sheet (2-4) to staple the tissue (3).

8. The radio frequency stapler according to claim 7, characterized in that: A space enclosing smoke and water vapor is formed between the metal pressing sheet (2-1), the staple cartridge (2-5), the knife head (5) and the stapled tissue (3).

Images