Anastomat for loading anastomotic stoma reinforcing material

Abstract

The invention discloses an anastomat for loading an anastomotic stoma reinforcing material, and relates to the technical field of auxiliary equipments.The anastomat comprises an anastomat body, a first straight pipe, a second straight pipe, a suturing mechanism and a connecting mechanism, the first straight pipe is arranged at one end of the anastomat body, and the first straight pipe and the second straight pipe are connected through the connecting mechanism; one end of the second straight pipe is fixedly connected with a nail abutting seat, a nail box is rotatably arranged on one side of the nail abutting seat, a suturing mechanism is arranged on the nail abutting seat and the nail box, the connecting mechanism is used for detachably connecting the first straight pipe and the second straight pipe, and the suturing mechanism reinforces sutured suturing nails. Tissue nailing and material fixing are synchronously completed in the one-time percussion process, the effects of gapless sealing, uniform hemostasis and mechanical enhancement are achieved, the problems of leakage, bleeding and tissue tearing risks caused by independent operation of suturing nails of a traditional anastomat are solved, and the reliability and safety of an operation are improved.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology, specifically to a stapler that provides load-bearing anastomotic reinforcement material. Background Technology

[0002] A stapler is a medical device primarily used in surgical procedures to connect tissues (anastomosis). It seamlessly connects two severed tissue segments (such as the intestines or blood vessels) during surgery, ensuring wound healing and restoring normal function. The stapler connects severed tissues using medical staples; this process is called "mechanical anastomosis." Its working principle involves quickly fixing the edges of two tissue segments together by inserting the staples, while also removing excess tissue to form a tight connection.

[0003] In existing technologies, medical staplers typically connect the edges of severed tissue using medical staples. These staples are independent of each other and are not reinforced with strengthening materials. In some cases, the staples may loosen or detach, affecting the uniform pressure on the tissue section at the anastomosis site and causing bleeding.

[0004] Therefore, those skilled in the art have provided a stapler for reinforcing the anastomosis joint with a load-bearing material to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a stapler for reinforcing load-bearing anastomotic joints, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A stapler for reinforcing anastomotic joints includes a stapler body, a first straight tube, a second straight tube, a suturing mechanism, and a connecting mechanism. The first straight tube is provided at one end of the stapler body. The first straight tube and the second straight tube are connected by the connecting mechanism. An anvil is fixedly connected to one end of the second straight tube. A staple cartridge is rotatably provided on one side of the anvil. The suturing mechanism is provided on the anvil and the staple cartridge. The connecting mechanism is used to disassemble and connect the first straight tube and the second straight tube. The suturing mechanism is used to reinforce the anastomosis or closure.

[0007] As a further aspect of the present invention: the suturing mechanism includes a reinforcing unit and a limiting unit, the reinforcing unit being used to reinforce the suture staples being sutured, and the limiting unit being used to reinforce the anastomosis or closure.

[0008] As a further embodiment of the present invention: a reinforcing unit is provided on the anvil and the staple cartridge, the reinforcing unit being used to reinforce the anastomosis or closure.

[0009] As a further embodiment of the present invention: the reinforcement unit includes a first reinforcement material, a second reinforcement material and an easy-tear connecting groove, the front end of the anvil seat side and the front end of the first reinforcement material are bonded together, the front end of the nail box side and the front end of the second reinforcement material are bonded together, and the first reinforcement material and the second reinforcement material are both provided with an easy-tear connecting groove near one end.

[0010] As a further embodiment of the present invention: a limiting unit is provided on the anvil, the nail box, the first reinforcing material and the second reinforcing material, and the limiting unit is used to limit and fix the reinforcing unit.

[0011] As a further embodiment of the present invention: the limiting unit includes a suture limiting hole and a triangular notch groove, the anvil and the nail box are provided with a suture limiting hole on one side, and the anvil, the nail box, the first reinforcing material and the second reinforcing material are provided with triangular notch grooves on both sides.

[0012] As a further embodiment of the present invention, the connecting mechanism includes a connecting sleeve, a limiting groove, a limiting rod, and a snap-fit ​​unit. The connecting sleeve is sleeved on the outside of the first straight tube and is slidably connected to the first straight tube. Two sets of limiting grooves are opened at one end of the first straight tube. The limiting rod is fixedly connected to one end of the second straight tube. The two sets of limiting grooves and the two sets of limiting rods are respectively connected to each other. The snap-fit ​​unit is used to limit and fix the connecting sleeve.

[0013] As a further aspect of the present invention, a snap-fit ​​unit is provided on the connecting sleeve and the second straight pipe, the snap-fit ​​unit being used to limit and fix the connecting sleeve. As a further embodiment of the present invention, the snap-fit ​​unit includes a limiting block, a spring, and a fixing block. The limiting block is slidably connected to one side of the second straight tube, and the spring is fixedly connected between the limiting block and the second straight tube. The fixing block is fixedly connected to the corresponding position of the connecting sleeve and the limiting block.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: By integrating pre-loaded double-sided reinforcing materials and their intelligent release mechanism, tissue stapling and material fixation are completed simultaneously during a single firing process, achieving the triple effects of gapless sealing, uniform hemostasis, and mechanical enhancement. This solves the risks of leakage, bleeding, and tissue tearing caused by the independent operation of suture staples in traditional staplers, significantly improving the reliability, safety, and operational efficiency of the surgery. The reinforcing material is pre-loaded into the stapler and fixed to the tissue in one go through the stapling action, avoiding the tediousness and uncertainty of manually adding materials after surgery. The firing blade simultaneously cuts the fixation sutures, and the easy-tearable groove design ensures that the instrument and reinforcing material can be quickly, thoroughly, and without damage after surgery. The connecting mechanism enables rapid and stable docking and separation between straight tubes, while facilitating cleaning and maintenance of the instrument's interior, thus improving the instrument's applicability and service life. Attached Figure Description

[0015] Figure 1This is a schematic diagram of a stapler for reinforcing a load-bearing anastomosis joint.

[0016] Figure 2 This is a schematic diagram of a stapler for reinforcing a load-bearing anastomosis joint.

[0017] Figure 3 This is a schematic diagram of a stapler for reinforcing a load-bearing anastomosis joint.

[0018] Figure 4 This is a schematic diagram of a stapler for reinforcing a load-bearing anastomosis joint.

[0019] Figure 5 This is a schematic diagram of a stapler for reinforcing a load-bearing anastomosis joint.

[0020] Figure 6 This is a schematic diagram of a stapler for reinforcing a load-bearing anastomosis joint.

[0021] In the diagram: 1. Anastomosis device body; 2. First straight tube; 3. Second straight tube; 31. Anvil seat; 32. Staple box; 4. Suturing mechanism; 43. Suture limiting hole; 44. First reinforcing material; 45. Second reinforcing material; 46. Easy-tear connecting groove; 47. Triangular notch groove; 5. Connecting mechanism; 51. Connecting sleeve; 54. Limiting groove; 55. Limiting rod; 56. Limiting block; 57. Spring; 58. Fixing block. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment of the invention provides a stapler for reinforcing anastomotic joints with load-bearing materials, including a stapler body 1, a first straight tube 2, a second straight tube 3, a suturing mechanism 4, and a connecting mechanism 5. The first straight tube 2 is provided at one end of the stapler body 1, and the first straight tube 2 and the second straight tube 3 are connected by the connecting mechanism 5. An anvil seat 31 is fixedly connected to one end of the second straight tube 3, and a staple cartridge 32 is rotatably provided on one side of the anvil seat 31. The suturing mechanism 4 is provided on the anvil seat 31 and the staple cartridge 32. The connecting mechanism 5 is used to disassemble and reconnect the first straight tube 2 and the second straight tube 3. The suturing mechanism 4 is used to reinforce the anastomosis or closure.

[0024] In this embodiment, a first straight tube 2 is provided at the distal end of the stapler body 1. The distal end of the first straight tube 2 is detachably connected to the proximal end of the second straight tube 3 through a connecting mechanism 5. The distal end of the second straight tube 3 is fixedly connected to an anvil 31. One side of the anvil 31 is rotatably connected to the staple cartridge 32, so that the stapler body 1 controls the rotation of the staple cartridge 32 and can open and close relative to the anvil 31. A suturing mechanism 4 is installed on the anvil 31 and the staple cartridge 32. The suturing mechanism 4 is used to drive the staples to suture the reinforcing material together with the wound when the stapler body 1 sutures the wound, and integrates the reinforcing material with the tissue through the staple feet. The stapled joint simultaneously achieves the triple advantages of seamless sealing (preventing leakage), uniform pressure (effective hemostasis), and mechanical reinforcement (preventing tissue tearing), significantly improving the reliability and safety of the anastomosis surgery. The connecting mechanism 5 is used to achieve rapid connection and separation between the first straight tube 2 and the second straight tube 3, while reducing the entry of external substances into the gap between the first straight tube 2 and the second straight tube 3, making it easier to clean the connection between the first straight tube 2 and the second straight tube 3 of the stapler body 1 (the role of the reinforcing material is to disperse the tissue stress at the anastomosis or closure, so that the tissue cross-section is evenly compressed, reducing bleeding, thereby achieving reinforcement of the anastomosis).

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, optionally, the suturing mechanism 4 includes a reinforcing unit and a limiting unit. The reinforcing unit is used to reinforce the suture staples, and the limiting unit is used to reinforce the anastomosis or closure.

[0026] In this embodiment, the suture mechanism 4 includes a reinforcement unit and a limiting unit. The reinforcement unit is composed of a first reinforcement material 44 and a second reinforcement material 45, which are made of absorbable biological or synthetic materials. It is used to wrap the nail feet after suturing to enhance hemostasis and prevent leakage. The limiting unit is composed of a suture limiting hole 43 and a suture, which is used to reliably bind the reinforcement unit to the anvil 31 and the nail box 32 before firing to prevent it from shifting or falling off.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, optionally, a reinforcing unit is provided on the anvil 31 and the staple cartridge 32, the reinforcing unit being used to reinforce the anastomosis or closure.

[0028] In this embodiment, the first reinforcing material 44 in the reinforcing unit is adhered to the inner working surface of the anvil 31 by medical adhesive, and the second reinforcing material 45 is adhered to the inner working surface of the nail cartridge 32 by medical adhesive. When the nail cartridge 32 and the anvil 31 are closed, the first reinforcing material 44 and the second reinforcing material 45 are placed opposite each other and work together on both sides of the tissue to be anastomosed.

[0029] like Figure 1 , Figure 3 and Figure 4 As shown, optionally, the reinforcement unit includes a first reinforcement material 44, a second reinforcement material 45, and an easy-tear connecting groove 46. The front end of the anvil 31 and the front end of the first reinforcement material 44 are bonded together, and the front end of the nail box 32 and the front end of the second reinforcement material 45 are bonded together. The first reinforcement material 44 and the second reinforcement material 45 are both provided with an easy-tear connecting groove 46 near one end.

[0030] In this embodiment, the elliptical region at the front end of the first reinforcing material 44 is coated with medical adhesive to bond it to the front end of the anvil 31. Similarly, the elliptical region at the front end of the second reinforcing material 45 is also coated with medical adhesive to bond it to the front end of the staple cartridge 32. Both the proximal edges of the first and second reinforcing materials 44 and the end closest to the operator are pre-fabricated with a row of intermittently distributed easy-tear grooves 46. This structure is a low-strength easy-tear line, facilitating postoperative separation of the material from the instrument.

[0031] like Figure 1 , Figure 3 and Figure 4 As shown, optionally, limiting units are provided on the anvil 31, the nail box 32, the first reinforcing material 44 and the second reinforcing material 45, and the limiting units are used to limit and fix the reinforcing units.

[0032] In this embodiment, the limiting unit is provided on the anvil 31, the nail box 32, the first reinforcing material 44 and the second reinforcing material 45. The limiting unit tightly binds and fixes the first reinforcing material 44 and the second reinforcing material 45 to the anvil 31 and the nail box 32 by passing the suture thread through the suture thread limiting hole 43 on the above-mentioned components.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, optionally, the limiting unit includes a suture limiting hole 43 and a triangular notch 47. The anvil 31 and the nail cartridge 32 are provided with a suture limiting hole 43 on one side, and the anvil 31, the nail cartridge 32, the first reinforcing material 44 and the second reinforcing material 45 are provided with triangular notch 47 on both sides.

[0034] In this embodiment, multiple suture limiting holes 43 are machined on the metal bodies of the anvil 31 and the stub 32. At the center point of the longitudinal direction of the anvil 31, the stub 32, the first reinforcing material 44 and the second reinforcing material 45, a triangular notch 47 is laser-cut. When all components are assembled, these triangular notches 47 together form a complete triangular channel, providing a path for the firing blade and allowing the blade to cut the suture passing through this point. The limiting block 56 in the middle of one end of the first reinforcing material 44 and the second reinforcing material 45 is for guiding the blade to cut.

[0035] It should be further explained that the center of the staple holder 32 is open (existing technology). The suture wrapping process involves the suture first passing through the open center of the staple holder 32, then knotting the suture on one side of the staple holder 32. After placing the second reinforcing material 45 on the upper side of the staple holder 32, the longer end of the knotted suture is wrapped around the second reinforcing material 45 and the staple holder 32 once, passing through the triangular notch 47 on the opposite side. Then, the suture is knotted again on the same side as the initial knot. After knotting, the suture is wrapped around the second reinforcing material 45 and the staple holder 32 again for reinforcement, and then knotted on the same side. This secures the second reinforcing material 45 to the staple holder 32 through suture wrapping. (Knotting is required after each wrapping to prevent the suture from falling into the body and causing unnecessary inflammation after the cutting blade cuts the suture and tissue).

[0036] like Figure 2 , Figure 5 and Figure 6 As shown, optionally, the connecting mechanism 5 includes a connecting sleeve 51, a limiting groove 54, a limiting rod 55, and a snap-fit ​​unit. The connecting sleeve 51 is sleeved on the outside of the first straight tube 2, and the connecting sleeve 51 is slidably connected to the first straight tube 2. Two sets of limiting grooves 54 are opened at one end of the first straight tube 2, and the limiting rod 55 is fixedly connected to one end of the second straight tube 3. The two sets of limiting grooves 54 and the two sets of limiting rods 55 are respectively connected to each other. The snap-fit ​​unit is used to limit and fix the connecting sleeve 51.

[0037] In this embodiment, the connecting mechanism 5 includes a connecting sleeve 51 slidably fitted onto the first straight tube 2. Two sets of L-shaped limiting grooves 54 are symmetrically opened on the outer wall of the distal end of the first straight tube 2. The proximal end of the second straight tube 3 is fixedly connected with limiting rods 55 that match the number and position of the limiting grooves 54. By inserting the limiting rods 55 into the limiting grooves 54 and rotating the connecting sleeve 51, the first straight tube 2 and the second straight tube 3 can be docked and locked. The snap-fit ​​unit is used to lock the connecting sleeve 51 after it is rotated into place to prevent it from accidentally flipping and loosening. It also connects the transmission operating rods inside the first straight tube 2 and the second straight tube 3, thereby allowing the stapler body 1 to rotate and clamp the staple holder 32 to the staple seat 31 (the stapler body 1 controls the rotation of the staple holder 32, which is prior art). The connecting sleeve 51 is on the outer side between the first straight tube 2 and the second straight tube 3, which can reduce the entry of external substances into the gap between the first straight tube 2 and the second straight tube 3, and facilitate the cleaning of the connection between the first straight tube 2 and the second straight tube 3.

[0038] like Figure 2 , Figure 5 and Figure 6 As shown, optionally, a snap-fit ​​unit is provided on the connecting sleeve 51 and the second straight pipe 3, the snap-fit ​​unit being used to limit and fix the connecting sleeve 51.

[0039] In this embodiment, the snap-fit ​​unit is installed between the connecting sleeve 51 and the second straight pipe 3. When the connecting sleeve 51 slides to the locked position, the snap-fit ​​unit automatically takes effect, fixing the relative position of the connecting sleeve 51 and the second straight pipe 3, thereby maintaining the connection state between the first straight pipe 2 and the second straight pipe 3.

[0040] like Figure 2 , Figure 5 and Figure 6 As shown, optionally, the snap-fit ​​unit includes a limiting block 56, a spring 57 and a fixing block 58. The limiting block 56 is slidably connected to one side of the second straight tube 3, the spring 57 is fixedly connected between the limiting block 56 and the second straight tube 3, and the fixing block 58 is fixedly connected to the corresponding position of the connecting sleeve 51 and the limiting block 56.

[0041] In this embodiment, the locking unit includes a limiting block 56, a spring 57, and a fixing block 58. A through hole is provided on the wall of the second straight tube 3, and a limiting block 56 and a spring 57 are placed inside. The spring 57 always provides an outward elastic force to the limiting block 56. On the inner wall of the connecting sleeve 51, a fixing block 58 is fixed at a position corresponding to the limiting block 56. When the connecting sleeve 51 is rotated to the locked position, the fixing block 58 slides exactly below the limiting block 56, and the spring 57 pushes the limiting block 56 into a recess on the fixing block 58, producing a click sound and locking. When disassembly is required, the connecting sleeve 51 is pulled outward forcefully to overcome the force of the spring 57 and make the limiting block 56 disengage from the recess, and then it can be rotated in the opposite direction to unlock.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stapler for reinforcing anastomotic joints, comprising a stapler body (1), a first straight tube (2), a second straight tube (3), a suturing mechanism (4), and a connecting mechanism (5), characterized in that, The main body (1) of the stapler is provided with a first straight tube (2) at one end. The first straight tube (2) and the second straight tube (3) are connected by a connecting mechanism (5). One end of the second straight tube (3) is fixedly connected to an anvil (31). A staple cartridge (32) is rotatably provided on one side of the anvil (31). A suturing mechanism (4) is provided on the anvil (31) and the staple cartridge (32). The connecting mechanism (5) is used to disassemble and connect the first straight tube (2) and the second straight tube (3). The suturing mechanism (4) is used to reinforce the anastomosis or closure.

2. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 1, characterized in that, The suturing mechanism (4) includes a reinforcement unit and a limiting unit. The reinforcement unit is used to reinforce the anastomosis or closure, and the limiting unit is used to limit and fix the reinforcement unit.

3. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 2, characterized in that, The anvil (31) and the nail box (32) are provided with reinforcement units, which are used to reinforce the anastomosis or closure.

4. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 3, characterized in that, The reinforcement unit includes a first reinforcement material (44), a second reinforcement material (45), and an easy-tear connecting groove (46). The front end of the anvil (31) and the front end of the first reinforcement material (44) are bonded together, and the front end of the nail box (32) and the front end of the second reinforcement material (45) are bonded together. The first reinforcement material (44) and the second reinforcement material (45) are both provided with an easy-tear connecting groove (46) near one end.

5. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 4, characterized in that, Limiting units are provided on the anvil (31), nail box (32), first reinforcing material (44), and second reinforcing material (45). The limiting units are used to limit and fix the reinforcing units.

6. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 5, characterized in that, The limiting unit includes a suture limiting hole (43) and a triangular notch (47). The anvil (31) and the nail box (32) are provided with a suture limiting hole (43) on one side. The anvil (31), the nail box (32), the first reinforcing material (44) and the second reinforcing material (45) are provided with triangular notches (47) on both sides.

7. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 1, characterized in that, The connecting mechanism (5) includes a connecting sleeve (51), a limiting groove (54), a limiting rod (55), and a snap-fit ​​unit. The connecting sleeve (51) is sleeved on the outside of the first straight tube (2), and the connecting sleeve (51) is slidably connected to the first straight tube (2). Two sets of limiting grooves (54) are opened at one end of the first straight tube (2), and the limiting rod (55) is fixedly connected to one end of the second straight tube (3). The two sets of limiting grooves (54) and the two sets of limiting rods (55) are respectively connected to each other. The snap-fit ​​unit is used to limit and fix the connecting sleeve (51).

8. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 7, characterized in that, The connecting sleeve (51) and the second straight pipe (3) are provided with snap-fit ​​units, which are used to limit and fix the connecting sleeve (51).

9. The anastomosis device for reinforcing a load-bearing anastomosis joint according to claim 8, characterized in that, The snap-fit ​​unit includes a limiting block (56), a spring (57) and a fixing block (58). The limiting block (56) is slidably connected to one side of the second straight tube (3). The spring (57) is fixedly connected between the limiting block (56) and the second straight tube (3). The fixing block (58) is fixedly connected to the corresponding position of the connecting sleeve (51) and the limiting block (56).

Images