Tubular anastomat with turnable nail abutting seat
By designing a reversible nail seat tube-type stapler, the problem of secondary damage to the digestive tract caused by the large size of the nail seat cap in the existing technology is solved, and a smaller volume is achieved to enter the narrow digestive tract, reducing wounds and pain. Promote recovery.
Patent Information
- Application Number
- CN202323286490.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2033-12-04
AI Technical Summary
During use, the existing tube stapler is difficult to enter the deep digestive tract smoothly due to the large size of the cap against the nail seat, which can easily cause secondary damage to the digestive tract, increasing surgical wounds and patient pain.
A reversible nail-retaining tube-type stapler was designed. Through the matching and snap-on connection between the guide shaft and the central link, the cap can be turned over in a 90° range, allowing it to enter the narrow digestive tract in a smaller size.
It achieves smooth insertion of the nail base into the narrow digestive tract, reduces secondary damage to the digestive tract, reduces surgical wounds and patient pain, and promotes postoperative recovery.
Smart Images
Figure CN222367736U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical instruments, and in particular relates to a tubular stapler with a flippable anvil. Background Art
[0002] The digestive tract stapler is a medical device used in digestive tract surgery. Its main function is to reconstruct the digestive tract, such as gastrointestinal anastomosis, biliary reconstruction, gastrointestinal reconstruction, gastrointestinal shunt surgery, etc. The digestive tract stapler can quickly anastomose the ends of the digestive tract, achieve the purpose of hemostasis by stapling the ends of the digestive tract, and also speed up postoperative recovery and reduce hospitalization time.
[0003] During clinical use, the existing tubular stapler implants the anvil into the digestive tract tissue at one end section and makes it into a purse. When the digestive tract tissue of the section is located deeper, the anvil needs to be placed in a deeper position using an extended handle. However, due to the narrowness of some digestive tracts or the occurrence of partial tissue lesions, the cap of the anvil may cause secondary damage to the digestive tract during the implantation process due to its large size, resulting in more surgical wounds, increasing the patient's pain, and being detrimental to the patient's recovery. Summary of the invention
[0004] The utility model provides a tubular stapler with a flippable anvil seat to solve the problem that the existing tubular stapler may cause secondary damage to the digestive tract when entering the cross-section of the digestive tract tissue during use, thereby affecting postoperative recovery.
[0005] The utility model adopts the following technical scheme: a tubular stapler with a flippable anvil seat, comprising a fixed handle, one end of the fixed handle is connected to a curved tube sleeve, the end of the curved tube sleeve is provided with a staple magazine assembly, the fixed handle is provided with a firing handle, the other end of the fixed handle is provided with an adjusting nut, a central connecting rod is provided in the hollow cavity of the fixed handle, the adjusting nut can drive the central connecting rod to extend or retract the curved tube sleeve, a nail anvil seat is provided corresponding to the nail magazine assembly, the nail anvil seat comprises a cover cap and a guide shaft, the cover cap is movably connected to the guide shaft by a pin, and the cover cap can be flipped along the guide shaft within a range of 90°.
[0006] Furthermore, the guide shaft matches the central connecting rod, and the guide shaft and the central connecting rod can be connected together as a whole.
[0007] Furthermore, a plurality of nail seats are arranged at the bottom edge of the cap corresponding to the nail magazine assembly.
[0008] Furthermore, the nail magazine assembly includes a plurality of nail magazines and an annular knife arranged around the nail magazines.
[0009] Furthermore, the cover cap is connected to the guide shaft via a movable block, the movable block is in a concave shape, and two sides of the movable block are connected to two sides of the guide shaft via pins.
[0010] The utility model has a simple structure and a compact design. The cover cap of the anvil can be flipped through a pin and a movable block to make the cover cap parallel or perpendicular to the guide shaft. When the cover cap is parallel to the guide shaft, the anvil can smoothly enter the narrow digestive tract without causing more wounds to the digestive tract due to the excessive size of the anvil, which is conducive to the smooth progress of the anastomosis operation, reduces the patient's pain, and shortens the recovery time. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The utility model is a schematic structural diagram of a tubular stapler with a flippable anvil.
[0012] Figure 2 It is a partial structural schematic diagram of the nail support of the utility model.
[0013] Explanation of the reference numerals: nail support 1, cover cap 1-1, guide shaft 1-2, connecting block 1-3, pin 1-4, nail magazine assembly 2, bent sleeve 3, fixed handle 4, safety block 5, firing handle 6, adjusting nut 7. DETAILED DESCRIPTION
[0014] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are further described below in conjunction with specific drawings.
[0015] A tubular stapler with a flippable anvil comprises a fixed handle 4, one end of which is connected to a curved tube sleeve 3, an end of which is provided with a staple magazine assembly 2 and an anvil 1 corresponding to the staple magazine assembly 2, a firing handle 6 is provided on the fixed handle 4, an adjusting nut 7 is provided on the other end of the fixed handle 4, a central connecting rod is provided in a hollow cavity of the fixed handle 4, the central connecting rod can extend or retract into the curved tube sleeve 3 by adjusting the nut 7, a safety block 5 is provided on the fixed handle 4, and the safety block 5 can lock the position of the central connecting rod to prevent the central connecting rod from shaking.
[0016] The nail support 1 includes a cap 1-1 and a guide shaft 1-2, one end of the guide shaft 1-2 is connected to the cap, and the other end of the guide shaft 1-2 is matched and clamped with the central connecting rod. A connecting block 1-3 is arranged in the middle of the cap 1-1, and the connecting block 1-3 is connected to the guide shaft 1-2 through a pin 1-4. A plurality of nail seats are arranged on the bottom edge of the cap 1-1. The connecting block 1-3 is concave, and the concave sides of the connecting block 1-3 are connected to the ends of the guide shaft 1-2 through pins 1-4. A positioning protrusion is arranged at the end of the guide shaft 1-2. When the cap 1-1 is turned 90° and is perpendicular to the guide shaft 1-2, the positioning protrusion is clamped in the concave groove of the connecting block. A tension spring is arranged at the bottom of the guide shaft 1-2 and the cap 1-1. When the cap 1-1 is parallel to the guide shaft, the tension spring is in a compressed state. When the cap 1-1 is turned 90° and is perpendicular to the guide shaft, the tension spring returns to a natural state.
[0017] The nail magazine assembly 2 includes a nail magazine arranged corresponding to the nail seat, and an annular knife is arranged around the nail magazine.
[0018] Working principle:
[0019] In clinical digestive tract anastomosis surgery, the anvil 1 needs to be implanted into the digestive tract of the section and form a purse. Before implantation, the cap 1-1 of the anvil 1 is first adjusted to be flipped so that the cap 1-1 is parallel to the guide shaft 1-2, so that the cap 1-1 can enter the digestive tract to be connected more smoothly. The cap 1-1 of the anvil 1 is completely wrapped with the purse mouth, and one end of the fixed handle 4 is inserted into the tissue that needs to be connected with the digestive tract of the section, and the adjusting nut 7 is rotated to make the center rod extend out of the curved sleeve 3 and penetrate the tissue wall, and the guide shaft 1-2 of the anvil 1 is matched with the center rod and fixed by the clamping sleeve, and the adjusting nut 7 is rotated to make the center rod drive the anvil 1 to retract. After retracting into place, the cap 1- 1 is flipped 90° to achieve verticality with the guide shaft 1-2. When the cap 1-1 of the nail support 1 and the nail magazine reach the corresponding appropriate position, the positioning protrusion on the guide shaft 1-2 is locked with the connecting block. At this time, the safety block 5 on the fixed handle 4 is pressed to fix the position of the center rod to prevent the center rod from shifting. The firing handle 6 is pulled, and the anastomotic staples in the nail magazine connect the digestive tract of the section. At the same time, the annular knife cuts the excess tissue at the connection of the nail magazine to complete the anastomotic connection of the digestive tract of the section. The fixed handle 4 is held to separate the nail support 1 and the nail magazine assembly 2 from the digestive tract connected with the anastomosis, and the adjusting nut 7 is rotated to separate the center rod and the guide shaft, and the part of the tissue cut by the annular knife is cleaned to complete the digestive tract anastomosis.
Claims
1. A tubular stapler with a reversible anvil, characterized in that: The invention comprises a fixed handle (4), one end of which is connected to a curved tube sleeve (3), the end of which is provided with a nail magazine assembly (2), a firing handle (6) is provided on the fixed handle (4), an adjusting nut (7) is provided on the other end of the fixed handle (4), a central connecting rod is provided in a hollow cavity of the fixed handle (4), the adjusting nut can drive the central connecting rod to extend or retract into the curved tube sleeve, a nail anvil (1) is provided corresponding to the nail magazine assembly (2), the nail anvil (1) comprises a cover cap (1-1) and a guide shaft (1-2), the cover cap (1-1) is movably connected to the guide shaft (1-2) via a pin (1-4), and the cover cap (1-1) can be flipped along the guide shaft within a range of 90 degrees.
2. The tubular stapler with a reversible anvil according to claim 1, characterized in that: The guide shaft (1-2) matches the central connecting rod, and the guide shaft (1-2) and the central connecting rod can be connected together by clamping.
3. The tubular stapler with a reversible anvil according to claim 1, characterized in that: A plurality of nail seats are arranged at the bottom edge of the cover cap (1-1) corresponding to the nail magazine assembly.
4. The tubular stapler with a reversible anvil according to claim 1, characterized in that: The nail magazine assembly (2) comprises a plurality of nail magazines and an annular knife arranged around the nail magazines.
5. The tubular stapler with a reversible anvil according to claim 1, characterized in that: The cover cap (1-1) is connected to the guide shaft (1-2) via a movable block (1-3); the movable block (1-3) is in a concave shape; two sides of the movable block (1-3) are connected to two sides of the guide shaft via pins (1-4).