CN116549043A - Pre-installed protective film and tubular stapler with pre-installed protective film - Google Patents

Abstract

The invention relates to the technical field of anastomat, in particular to a preassembled protective film and a tubular anastomat preassembled with the protective film. The cap comprises a cap body, wherein a pull rod hole which is penetrated up and down is arranged in the center of the cap body, and a circle of annular cap peak part is arranged along the edge of the cap body; one side end face of the cap body is a protection end, and the other side end face of the cap body is a mounting end; a plurality of membrane positioning structures are arranged on the mounting end of the cap body. The protective film can protect the integrity and stability of the anastomotic stoma tissue and ensure the anastomotic effect. The preassembled protective film is preassembled on the tubular anastomat, and the installation incision on the upper side of the protective film can be avoided, so that the integrity of the protective film is ensured, and the tissue of an anastomotic stoma is protected more favorably; the invention is positioned and installed on the tubular anastomat through the membrane positioning structure, thereby improving the installation stability of the protective membrane.

Description

Pre-installed protective film and tubular stapler with pre-installed protective film

technical field

The invention relates to the technical field of staplers, in particular to a pre-installed protective film and a tubular stapler with a pre-installed protective film.

Background technique

The tubular stapler is a medical device for end-to-end or end-to-side anastomosis of the intestinal tract. The ring-like anastomotic surface of the tubular stapler is located in the intestinal cavity. Due to the narrow anastomotic surface and the dense puncture of staples, in order to prevent the anastomotic surface tissue from being broken, it will affect the integrity and firmness of the anastomosis, and leakage, In case of adverse consequences such as defect and necrosis, a protective film should be used on the outside of the anastomotic end for protection.

Contents of the invention

Aiming at the shortcomings in the above-mentioned existing production technology, this application provides a pre-installed protective film and a tubular stapler with a pre-installed protective film, which can protect the integrity and stability of the anastomotic tissue and ensure the effect of anastomosis; at the same time, the pre-installed The protective film can avoid opening an installation cut on the upper side of the protective film, thereby ensuring the integrity of the protective film, which is more conducive to the protection of the anastomotic tissue.

The technical scheme adopted in the present invention is as follows:

The pre-installed protective film includes a cap body, the center of the cap body is provided with a pull rod hole that penetrates up and down, and the cap body is provided with a ring-shaped brim along the edge; one end surface of the cap body is a protective end, The other end surface of the cap body is the installation end; a plurality of membrane positioning structures are arranged on the installation end of the cap body.

Further, the cap body and brim are integrally made of absorbable biomaterials.

Further, a plurality of protruding reinforcing ribs are provided on the mounting end of the hat brim, one end of the reinforcing rib extends to the outer edge of the hat brim, and the other end of the reinforcing rib extends to the outer side of the hat body.

Further, the film positioning structure includes a plurality of vertically penetrating positioning holes provided on the mounting end of the cap body.

Further, the surface on the side of the protective end of the cap body is flush with the surface on the side of the protective end of the visor, and the surface on the side of the installation end of the cap body protrudes from the surface of the installation end of the brim.

Further, the film positioning structure includes a nail plate arranged on the side of the protective end of the cap body, a plurality of positioning nails are arranged on one side of the nail plate, and the plurality of positioning nails pass through the cap body downwards, and a conical truncated cone is arranged at the front end of the positioning nails The guide head of the structure.

Further, the surface on one side of the installation end of the cap body protrudes from the surface on the side of the installation end of the brim portion, the surface on the side of the protection end of the brim protrudes from the surface on the side of the protection end of the cap body, and the side surface of the outer ring of the nail plate is close to The inner surface of the protective end of the brim of the hat, the top surface of the nail plate and the surface of the protective end of the brim of the hat are flush with each other.

A tubular stapler with a pre-installed protective film, including an anvil assembly and a staple cartridge assembly arranged up and down correspondingly, a pull rod installation hole is arranged in the anvil assembly and the staple cartridge assembly, a pull rod is arranged in the pull rod installation hole, and a nail The anvil assembly and the staple cartridge assembly are connected by a pull rod, and two pre-installed protective films are set on the pull rod, and the two pre-installed protective films are attached and connected to the anvil assembly and the staple cartridge assembly respectively; the pre-installed The type protective film includes a cap body, the center of the cap body is provided with a pull rod hole that penetrates up and down, and the cap body is provided with a circle of ring-shaped brims along the edge, and one end surface of the cap body is a protective end. The other end face of the cap body is the installation end, and the installation end of the cap body is positioned and connected in the installation hole of the pull rod. A plurality of film positioning structures are arranged on the installation end of the cap body, and a mounting plate is arranged in the installation hole of the pull rod. A penetrating hole is provided in the center of the plate for the pull rod to pass through, and multiple plate positioning structures are provided on the mounting plate, and the multiple plate positioning structures and the multiple film positioning structures are connected in one-to-one correspondence.

Further, the plate positioning structure is a mounting hole, and the film positioning structure includes a nail plate arranged on one side of the protective end of the cap body, and a plurality of positioning nails are arranged on the end surface of one side of the nail plate, and the plurality of positioning nails pass through the cap body downward. , the mounting holes and positioning nails are connected in one-to-one correspondence.

Further, the plate positioning structure is a mounting column, and the film positioning structure includes a plurality of positioning holes that penetrate up and down on the mounting end of the cap body, and the mounting columns and positioning holes are connected in one-to-one correspondence.

The beneficial effects of the present invention are as follows:

The protective film of the present invention can protect the integrity and stability of the anastomotic stoma tissue and ensure the effect of anastomosis; the pre-installed protective film of the present invention is pre-installed on the tubular stapler, which can avoid opening an installation incision on the upper side of the protective film, thereby ensuring that the protective film The integrity of the protective film is more conducive to the protection of the anastomotic stoma; the present invention is positioned and installed on the tubular stapler through the film positioning structure, which improves the stability of the protective film installation; the reinforcing ribs of the present invention can improve the structure of the visor. Strength, to ensure that the brim of the hat is flat, does not roll back, and is easier to pass through with staples.

Description of drawings

Fig. 1 is a structural diagram of a protective end of a pre-installed protective film in Embodiment 1.

Fig. 2 is a structural view of the installation end of the pre-installed protective film in the first embodiment.

Fig. 3 is a structural view of the protective end of the pre-installed protective film in Embodiment 1 after the nail plate is removed.

Fig. 4 is a structure diagram of the nail plate of the pre-installed protective film in the first embodiment.

Fig. 5 is a structural diagram of the protective end of the pre-installed protective film in the second embodiment.

Fig. 6 is a structural diagram of the installation end of the pre-installed protective film in the second embodiment.

Fig. 7 is a perspective view of the tubular stapler pre-installed with a protective film in the third embodiment.

Fig. 8 is a perspective view of removing the pre-installed protective film from the tubular stapler with the pre-installed protective film in the third embodiment.

Fig. 9 is a perspective view of a tubular stapler pre-installed with a protective film in Embodiment 4.

Fig. 10 is a perspective view of removing the pre-installed protective film from the tubular stapler with pre-installed protective film in the fourth embodiment.

Among them: 1. Cap body; 2. Cap brim; 3. Tie rod hole; 4. Locating nail; ; 10, pull rod; 11, mounting plate; 12, mounting hole; 13, mounting column; 14, nail plate.

Detailed ways

The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

Embodiment one:

As shown in Figure 1 and Figure 2, the pre-installed protective film includes a cap body 1, the cross section of the cap body 1 is circular, and the cap body 1 is provided with a ring-shaped brim part 2 along the edge, the cap body 1 And brim part 2 is integrally made by absorbable biological material.

As shown in FIG. 1 and FIG. 2 , one end surface of the cap body 1 is a protective end, and the other end surface of the cap body 1 is a mounting end. The protective end of the cap body 1 faces the anastomosis, and the installation end of the cap body 1 faces the installation end surface of the staple cartridge assembly 8 or the installation end surface of the anvil assembly 9 of the stapler.

As shown in FIGS. 2 and 3 , a nail plate 14 is arranged on one side of the protective end of the cap body 1 , and a plurality of positioning nails 4 are arranged on one side of the nail plate 14 , and the plurality of positioning nails 4 are evenly distributed along the circumferential direction. After a plurality of positioning nails 4 pass through the cap body 1 downwards, they can be positioned and connected to the staple cartridge assembly 8 installation end surface or the nail anvil assembly 9 installation end surface of the stapler.

As shown in Figures 2 and 4, the front end of the positioning nail 4 is provided with a guide head 6 with a truncated conical structure, and the guide head 6 facilitates the positioning nail 4 to pass through the cap body 1 and be positioned and connected to the stapler assembly 8 on the installation end surface or nail. The anvil assembly 9 is installed on the end face.

As shown in Fig. 2 and Fig. 3, the installation end side surface of cap body portion 1 protrudes from the installation end side surface of hat brim portion 2, and the protection end side surface of hat brim portion 2 protrudes from the protection end side surface of cap body portion 1 side surface. The side surface of the outer ring of the nail plate 14 is close to the inner surface of the protective end of the brim part 2, thereby realizing the positioning installation of the nail plate 14 on the cap body part 1. The upper surface of the nail plate 14 is flush with the protective end side surface of the visor part 2 .

As shown in FIG. 1 and FIG. 2 , a pull rod hole 3 penetrating up and down is provided in the center of the cap body 1 , and the pull rod hole 3 is used for passing the pull rod 10 of the stapler.

As shown in Figure 2, a plurality of protruding reinforcing ribs 5 are arranged on the mounting end of the visor part 2, and the plurality of reinforcing ribs 5 are evenly distributed along the circumferential direction, and one end of the reinforcing ribs 5 extends to the outer edge of the visor part 2 , the other end of the reinforcing rib 5 extends to the outer surface of the cap body 1 .

When in use, since the brim part 2 is a film structure, it cannot be guaranteed to be flat when the wound is anastomotic, and may be driven to fold and roll back, causing the brim part 2 to fail to wrap the anastomosis normally. The structural strength of the hat brim 2 is improved by arranging reinforcing ribs 5 on the installation end surface of the brim of the hat 2 to ensure that the brim of the hat 2 is flat, does not roll back, and is easier to be penetrated by staples.

Embodiment two:

As shown in Figure 5 and Figure 6, the pre-installed protective film includes a cap body 1, the cross section of the cap body 1 is circular, and the cap body 1 is provided with a ring-shaped brim part 2 along the edge, the cap body The part 1 and the visor part 2 are integrally formed by absorbable biomaterials.

As shown in FIG. 5 and FIG. 6 , the thickness of the brim part 2 is smaller than the thickness of the cap body part 1 . One end surface of the cap body 1 is the protective end, the other end surface of the cap body 1 is the installation end, the protective end of the cap body 1 faces the anastomosis, and the installation end of the cap body 1 faces the staple cartridge assembly of the stapler 8. Install the end face or the nail anvil assembly 9. Install the end face. The surface on the side of the protective end of the cap body 1 is flush with the surface on the side of the protective end of the visor 2 , and the surface on the side of the installation end of the cap body 1 protrudes from the surface of the installation end of the brim 2 .

As shown in FIG. 5 and FIG. 6 , the center of the cap body 1 is provided with a pull rod hole 3 penetrating up and down, and the pull rod hole 3 is used for passing the pull rod 10 of the stapler.

As shown in FIG. 5 , a plurality of positioning holes 7 penetrating up and down are provided on the mounting end of the cap body 1 , and the plurality of positioning holes 7 are evenly distributed along the circumferential direction. The plurality of positioning holes 7 can be positioned and connected to the positioning nails on the installation end surface of the staple cartridge assembly 8 or the positioning nails on the installation end surface of the anvil assembly 9 of the stapler.

As shown in Figure 5, a plurality of protruding reinforcing ribs 5 are arranged on the installation end of the visor part 2, and the plurality of reinforcing ribs 5 are evenly distributed along the circumferential direction, and one end of the reinforcing ribs 5 extends to the outer edge of the visor part 2 , the other end of the reinforcing rib 5 extends to the outer surface of the cap body 1 .

When in use, since the brim part 2 is a film structure, it cannot be guaranteed to be flat when the wound is anastomotic, and may be driven to fold and roll back, causing the brim part 2 to fail to wrap the anastomosis normally. The structural strength of the hat brim 2 is improved by arranging reinforcing ribs 5 on the installation end surface of the brim of the hat 2 to ensure that the brim of the hat 2 is flat, does not roll back, and is easier to be penetrated by staples.

Embodiment three:

As shown in Fig. 7 and Fig. 8, the tubular stapler with pre-installed protective film includes anvil assembly 9 and staple cartridge assembly 8 correspondingly arranged up and down, the anvil assembly 9 and staple cartridge assembly 8 are provided with pull rod installation holes, and the pull rod is installed A pull rod 10 is set in the hole, and the anvil assembly 9 and the staple cartridge assembly 8 are connected through the pull rod 10. When assembling the stapler, two pre-installed protective films are pre-set on the pull rod 10, and then the assembly of the stapler is completed. , so that the two pre-installed protective films are attached and connected to the anvil assembly 9 and the staple cartridge assembly 8 respectively. The preinstalled protective film has the structure described in the first embodiment.

As shown in Figures 7 and 8, a mounting plate 11 is provided in the pull rod mounting holes of the nail anvil assembly 9 and the staple cartridge assembly 8, and the center of the mounting plate 11 is provided with a penetration hole for the pull rod 10 to pass through. Mounting holes 12, a plurality of mounting holes 12 are evenly distributed along the circumferential direction.

As shown in FIG. 7 and FIG. 8 , the installation end of the cap body 1 of the pre-installed protective film is positioned and connected in the installation hole of the pull rod, and a plurality of positioning nails 4 and a plurality of installation holes 12 are positioned and connected one by one.

Embodiment four:

As shown in Figures 9 and 10, the tubular stapler with a pre-installed protective film includes an anvil assembly 9 and a staple cartridge assembly 8 correspondingly arranged up and down, the anvil assembly 9 and the staple cartridge assembly 8 are provided with pull rod installation holes, and the pull rod is installed A pull rod 10 is arranged in the hole, and the anvil assembly 9 and the staple cartridge assembly 8 are connected through the pull rod 10. When assembling the stapler, two pre-installed protective films are pre-set on the pull rod 10, and then the tubular stapler is completed. The assembly work makes the two pre-installed protective films adhere to and connect to the anvil assembly 9 and the staple cartridge assembly 8 respectively. The preinstalled protective film has the structure described in Example 2.

As shown in Fig. 9 and Fig. 10, a mounting plate 11 is arranged in the pull rod mounting holes of the nail anvil assembly 9 and the staple cartridge assembly 8, and the center of the mounting plate 11 is provided with a penetration hole for the pull rod 10 to pass through. Mounting columns 13, a plurality of mounting columns 13 are evenly distributed along the circumferential direction.

As shown in FIG. 9 and FIG. 10 , the installation end of the cap body 1 of the pre-installed protective film is positioned and connected in the installation hole of the pull rod, and a plurality of installation columns 13 and a plurality of positioning holes 7 are positioned and connected one by one.

The working principle of the present invention is: before the tubular stapler is assembled, two pre-installed protective films are set on the pull rod 10, and then the assembly of the tubular stapler is completed, so that the two pre-installed protective films are respectively The positioning is connected to the anvil assembly 9 and the staple cartridge assembly 8 to complete the pre-installation of the protective film on the tubular stapler. By pre-installing the protective film, it is possible to avoid incisions on the upper side of the protective film and ensure the integrity of the protective film. When the tubular stapler is used for wound anastomosis, the cap body 1 preinstalled with the protective film is cut off, leaving only the brim part 2 to wrap the anastomosis.

The above description is an explanation of the present invention, not a limitation of the invention. For the limited scope of the present invention, please refer to the claims. Within the protection scope of the present invention, any form of modification can be made.

Claims (10)

1. A pre-installed protective film, characterized in that: it includes a cap body (1), the center of the cap body (1) is provided with a tie rod hole (3) that penetrates up and down, and the cap body (1) is provided along the edge A ring-shaped brim part (2); one side end face of the cap body part (1) is the protection end, and the other side end face of the cap body part (1) is the installation end; the cap body part (1) Multiple membrane positioning structures are arranged on the installation end. 2. The pre-installed protective film according to claim 1, characterized in that: the cap body (1) and brim (2) are integrally made of absorbable biomaterials. 3. The pre-installed protective film according to claim 2, characterized in that: a plurality of protruding reinforcing ribs (5) are arranged on the installation end of the visor (2), and one end of the reinforcing ribs (5) Extending to the outer edge of the hat brim (2), the other end of the reinforcing rib (5) extends to the outer side of the hat body (1). 4. The pre-installed protective film according to claim 3, characterized in that the film positioning structure comprises a plurality of vertically penetrating positioning holes (7) provided on the mounting end of the cap body (1). 5. The pre-installed protective film according to claim 4, characterized in that: the surface of the protective end side of the cap body (1) is flush with the surface of the protective end side of the brim portion (2), and the cap body The surface on one side of the installation end of the part (1) protrudes from the surface on the side of the installation end of the brim part (2). 6. The pre-installed protective film according to claim 3, characterized in that: the film positioning structure includes a nail plate (14) arranged on the side of the protective end of the cap body (1), the nail plate (14) A plurality of positioning nails (4) are arranged on one end surface, and the plurality of positioning nails (4) pass downward through the cap body (1), and the front ends of the positioning nails (4) are provided with a guide head (6) of a truncated conical structure. 7. The pre-installed protective film according to claim 6, characterized in that: the side surface of the installation end of the cap body (1) protrudes from the installation end surface of the brim part (2), and the brim part ( 2) The surface of one side of the protective end protrudes from the surface of the protective end of the cap body (1), the outer ring side of the nail plate (14) is close to the inner surface of the protective end of the brim (2), The surface on one side of the protective end of the end face and the brim portion (2) is flush. 8. A tubular stapler with a pre-installed protective film, comprising an anvil assembly (9) and a staple cartridge assembly (8) arranged correspondingly up and down, and the anvil assembly (9) and the staple cartridge assembly (8) are arranged inside A pull rod installation hole, a pull rod (10) is set in the pull rod installation hole, and the anvil assembly (9) and the staple cartridge assembly (8) are connected through the pull rod (10), which is characterized in that: the pull rod (10) is set Two pre-installed protective films, the two pre-installed protective films are attached and connected to the anvil assembly (9) and the staple cartridge assembly (8) respectively; the pre-installed protective films include the cap body (1), The center of the cap body (1) is provided with a pull rod hole (3) that penetrates up and down, and the cap body (1) is provided with a ring-shaped brim portion (2) along the edge, and one end surface of the cap body (1) For the protection end, the other end surface of the cap body (1) is the installation end, the installation end of the cap body (1) is positioned and connected in the installation hole of the pull rod, and the installation end of the cap body (1) is provided with multiple a film positioning structure, a mounting plate (11) is provided in the mounting hole of the pull rod, a penetrating hole is provided in the center of the mounting plate (11) for the rod (10) to pass through, and a plurality of plate positioning structures are provided on the mounting plate (11), The plurality of plate positioning structures and the plurality of film positioning structures are connected in one-to-one correspondence. 9. The tubular stapler with preinstalled protective film according to claim 8, characterized in that: the plate positioning structure is a mounting hole (12), and the film positioning structure includes a protective end arranged on the cap body (1) On one side of the nail plate (14), a plurality of positioning nails (4) are arranged on one side of the nail plate (14), and the plurality of positioning nails (4) pass downward through the cap body (1), the mounting holes (12) and The positioning nails (4) are connected in one-to-one correspondence. 10. The tubular stapler with pre-installed protective film according to claim 8, characterized in that: the plate positioning structure is a mounting column (13), and the film positioning structure includes a mounting end arranged on the cap body (1) There are a plurality of positioning holes (7) penetrating up and down, and the mounting column (13) and the positioning holes (7) are connected in one-to-one correspondence.