A PPH hemorrhoidal mucosal circumcision stapler assembly

Abstract

The present invention relates to the technical field of medical devices, and discloses a PPH hemorrhoidal mucosal circumcision stapler assembly, comprising a stapler seat, a stapler staple magazine and a connecting shaft, wherein a first groove is arranged in the stapler seat, a second groove is arranged in the stapler staple magazine, the first groove and the second groove are arranged oppositely, one end of the connecting shaft is fixedly connected to the center position of the first groove, and the other end of the connecting shaft is detachably connected to the center position of the second groove of the connecting shaft, the stapler seat and the stapler staple magazine are respectively provided with a first helical surface and a second helical surface on opposite surfaces, the first helical surface matches the second helical surface, a knife groove is arranged on the inner side of the first groove, the knife groove is arranged along the first helical surface, a blade is arranged on the inner side of the second groove, the blade is arranged along the second helical surface, and the knife groove matches the blade; the problem in the prior art that the annular anastomotic surfaces are on the same plane in hemorrhoidectomy surgery, which is prone to scar tissue hyperplasia and anastomotic stoma stenosis is solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a PPH hemorrhoidal mucosal circumcision stapler assembly. Background Art

[0002] At present, the PPH surgical method in the surgical operation of hemorrhoidectomy is a circular resection of the hemorrhoidal mucosa performed with the help of a hemorrhoidal stapler. During the operation, the disposable hemorrhoidal stapler is passed through the anus, and the mucosa and submucosal layer above the dentate line are circularly resected with a circular knife, and two rows of staggered staples arranged in a circle are driven in to close the incision. The cutting component of the disposable hemorrhoidal stapler is used to resect and suture the tissue. The existing PPH stapler is characterized by circular resection of the hemorrhoidal mucosa and submucosal tissue and completion of the anastomosis. However, the disadvantage of the stapler is that the annular anastomotic surface is on the same plane, which is prone to problems such as scar tissue hyperplasia and anastomotic stenosis. Therefore, a PPH hemorrhoidal mucosal circular resection stapler component is needed to solve such problems. Summary of the invention

[0003] The present invention provides a PPH hemorrhoidal mucosal circumcision stapler assembly, which has the advantages of simple structure, easy use and avoidance of anastomotic stenosis, and solves the problem in the prior art that the annular anastomotic surfaces are on the same plane during hemorrhoidectomy surgery, which is prone to scar tissue hyperplasia and anastomotic stenosis.

[0004] The present invention provides the following technical solutions: A PPH hemorrhoidal mucosal circumcision stapler assembly comprises a stapler seat, a stapler staple magazine and a connecting shaft, wherein a first groove is provided in the stapler seat, a second groove is provided in the stapler staple magazine, the first groove and the second groove are arranged opposite to each other, one end of the connecting shaft is fixedly connected to the center position of the first groove, and the other end of the connecting shaft is detachably connected to the center position of the second groove, the stapler seat and the stapler staple magazine have opposite surfaces respectively provided with a first helical surface and a second helical surface, the first helical surface matches the second helical surface, a knife groove is provided on the inner side of the first groove, the knife groove is arranged along the first helical surface, a blade is provided on the inner side of the second groove, the blade is arranged along the second helical surface, and the knife groove matches the blade.

[0005] Preferably, the tip of the anvil is conical and the stapler magazine is cylindrical.

[0006] Preferably, two circles of nail-supporting holes are evenly distributed on the surface of the first spiral surface.

[0007] Preferably, two circles of nail holes are evenly distributed on the surface of the second helical surface.

[0008] Preferably, the nail support holes correspond one-to-one with the nail holes.

[0009] The present invention has the following beneficial effects:

[0010] The advantage of this invention lies in its improved cutting and anastomosis method, so that the annular anastomotic surface is not in the same plane, but is changed to a spiral cutting and anastomosis on the longitudinal axis, so that the postoperative anastomotic surface and anastomosis are in a three-dimensional spiral shape. Compared with the original stapler, it is not easy to have problems such as scar tissue hyperplasia, submucosal hematoma, uneven resection, damage to the muscle layer, postoperative bleeding, and anastomotic stoma stenosis after the operation, and has a high clinical application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 It is a front structural schematic diagram of the present invention;

[0013] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0014] Figure 4 It is a side structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] See also Figure 1-Figure 4 A PPH hemorrhoidal mucosal circumcision stapler assembly includes a stapler seat 1, a stapler staple magazine 2 and a connecting shaft 3.

[0017] Among them, the above-mentioned nail support seat 1 is provided with a first groove 12, and the stapler staple magazine 2 is provided with a second groove 22, the first groove 12 and the second groove 22 are arranged opposite to each other, one end of the connecting shaft 3 is fixedly connected to the center position of the first groove 12, and the other end of the connecting shaft 3 is detachable to the center position of the second groove 22 of the connecting shaft, and the opposite surfaces of the nail support seat 1 and the stapler staple magazine 2 are respectively provided with a first spiral surface 11 and a second spiral surface 21, and the first spiral surface 11 matches the second spiral surface 21, and a knife groove 13 is provided on the inner side of the first groove 12, and the knife groove 13 is arranged along the first spiral surface 11, and a blade 23 is provided on the inner side of the second groove 22, and the blade 23 is arranged along the second spiral surface 21, and the knife groove 13 matches the blade 23.

[0018] The tip of the anvil 1 is conical, and the stapler cartridge 2 is cylindrical.

[0019] Two circles of pin holes 111 are evenly distributed on the surface of the first spiral surface 11 .

[0020] Two circles of nail holes 211 are evenly distributed on the surface of the second spiral surface 21 .

[0021] The above-mentioned nail holes 111 correspond to the nail holes 211 one by one.

[0022] Working principle: At the beginning of the operation, the purse string in the anal canal is first sewed, and then the anvil 1 is placed alone in the purse string, and the purse string is adjusted to make the purse string more uniform. Then, the end of the purse string is fixed on the connecting shaft 3 and tied to tighten the purse string; then, surgical forceps are used to clamp the connecting shaft 3 of the anvil 1, and the anvil (13) is connected to the stapler; then, the adjusting nut at the tail of the stapler is adjusted so that the stapler staple cartridge 2 is close to the anvil 1; at this time, the blade 23 has been aligned with the knife groove 13, and when the appropriate anastomosis gap is reached, the movable handle is pressed to fire the staples, and the rectal mucosa is cut and stapled at the same time, and finally the stapler is withdrawn.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PPH hemorrhoidal mucosal circumcision stapler assembly, characterized in that: The invention comprises a stapler seat (1), a stapler cartridge (2) and a connecting shaft (3), wherein the stapler seat (1) is provided with a first groove (12), the stapler cartridge (2) is provided with a second groove (22), the first groove (12) and the second groove (22) are arranged opposite to each other, one end of the connecting shaft (3) is fixedly connected to the center position of the first groove (12), and the other end of the connecting shaft (3) is detachably connected to the center position of the second groove (22), the stapler seat (1) and the stapler cartridge (2) are provided with a first helical surface (11) and a second helical surface (21) on opposite surfaces thereof, the first helical surface (11) and the second helical surface (21) being matched with each other, a knife groove (13) is provided on the inner side of the first groove (12), the knife groove (13) being arranged along the first helical surface (11), a blade (23) is provided on the inner side of the second groove (22), the blade (23) is arranged along the second helical surface (21), and the knife groove (13) and the blade (23) are matched with each other; The first spiral surface (11) is evenly distributed with two circles of nail-supporting holes (111); Two circles of nail holes (211) are evenly distributed on the surface of the second spiral surface (21); The tip of the anvil (1) is conical, and the stapler cartridge (2) is cylindrical.

2. A PPH hemorrhoidal mucosal circumcision stapler assembly according to claim 1, characterized in that: The nail support holes (111) correspond one to one with the nail holes (211).

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