CN210811284U - Nail abutting seat device for tubular anastomat - Google Patents

Abstract

The utility model relates to a support nail seat device for cast anastomat, including supporting nail seat (1), be equipped with cup joint pipe (3) on supporting nail seat (1), be equipped with through-hole (3 a) in cup joint pipe (3), set up one and correspond complex extension rod (2) with cup joint pipe (3), the one end of extension rod (2) is connected with pull wire (4), its characterized in that: an elastic sheet (8) is arranged on the extension rod (2), and a clamping block (8 a) correspondingly matched with the through hole (3 a) is arranged at one end of the elastic sheet (8). The utility model has the advantages of simple structure, convenient operation, the extension rod can easily break away from and support the nail seat in laparoscopic surgery, and the separation uses the external force less and easily controllable, can not cause repetitive damage, and excellent in use effect.

Description

Nail abutting seat device for tubular anastomat

The technical field is as follows:

the utility model belongs to the technical field of a surgical instrument and specifically relates to a support nail seat device for cast anastomat.

Background art:

the development of the resection technology of digestive tract tumors under an endoscope leads the mechanical anastomosis after resection to be the key point and the difficulty for the success of the operation. In the case of open surgery, the anvil of the stapler can be safely placed in the alimentary tract to be anastomosed and sutured into a satisfactory pouch. However, it is difficult to perform satisfactory purse string suturing under endoscopic surgery and to safely place the nail-supporting seat of the stapler into the end of the digestive tract to be anastomosed, and it is also difficult to ligate a satisfactory purse string after placement. Therefore, in many cases, a large surgical incision has to be made after the excision for the safety of the operation, so that the minimally invasive effect of the endoscopic operation is greatly reduced.

Therefore, the utility model discloses the people has applied for the patent number to be: 201520117895.7, nevertheless discover after the in-service use, this patent is owing to adopt the rope to run through the connecting hole and then tie up the mode of binding and connect and support bell and spigot joint and the extension rod on the nail seat, consequently, the doctor needs handheld surgical instruments in the operation process, accomplishes the rope and runs through the connecting hole and tie up the operation of binding after and in patient's abdominal cavity, this very big increase the operation degree of difficulty and operation time undoubtedly.

The utility model has the following contents:

the present application is directed to overcoming the deficiencies in the prior art and providing a staple holder device for a tubular stapler.

The application provides the following technical scheme:

the utility model provides a support nail seat device for cast anastomat, includes to support the nail seat, is equipped with the bell and spigot joint pipe on supporting the nail seat, is equipped with at least one through-hole on the bell and spigot joint pipe, sets up one and corresponds complex extension rod with the bell and spigot joint pipe, and the one end of extension rod is connected with pull wire, its characterized in that: the pipe body of the sleeve pipe is uniformly distributed with a group of U-shaped grooves, the extension rod is provided with an elastic sheet, one end of the elastic sheet is provided with a clamping block which is correspondingly matched with the through hole, and the extension rod is provided with a pressing groove which is correspondingly matched with the elastic sheet.

On the basis of the technical scheme, the following further technical scheme can be provided:

grooves are formed in the pipe body of the sleeve pipe between every two adjacent U-shaped grooves.

The clamping block is columnar, and a chamfered edge is arranged on one side of the upper end of the clamping block.

The inner wall of the pipe body of the sleeve pipe is also provided with at least one guide groove, the guide grooves are communicated with the corresponding through holes, and the guide grooves are distributed along the axial direction of the sleeve pipe.

Utility model advantage:

the utility model has the advantages of simple structure, convenient operation, the extension rod can easily break away from to the nail seat in laparoscopic surgery, and the separation is used the external force less and easily controllable, can not cause vice damage, and the result of use is good, and is just separable extension rod and nail seat in one-hand operation, and strength is controllable when separating, the effectual operation degree of difficulty and the operation time that has reduced when performing the operation.

Description of the drawings:

FIG. 1 is a schematic view of the combined structure of the present invention;

fig. 2 is a schematic structural view of the extension rod 2 of the present invention;

fig. 3 is a schematic structural view of the middle spring plate 8 of the present invention;

fig. 4 is a partial structural sectional view of the extension bar 2 after the arc-shaped fixture block 8a is clamped into the through hole 3 a;

fig. 5 is a sectional view of the arc-shaped latch 8a of fig. 4, which is disengaged from the through hole 3 a.

The specific implementation mode is as follows:

as shown in figures 1-5, a nail-supporting seat assembly for a tubular anastomat comprises a nail-supporting seat 1 and a nail-supporting seat

The shaft center of the nail pushing seat 1 is provided with a yielding hole 1a, one end face of the nail pushing seat 1 is evenly provided with a group of nail pushing grooves 7, and the hole bottom of the yielding hole 1a is provided with a sleeve pipe 3 which is coaxially distributed. A certain interval is arranged between the sleeve pipe 3 and the hole wall of the abdicating hole 1 a. A plastic top piece (not shown) is also matched and buckled on the hole wall of the abdicating hole 1a, and the plastic top piece is not described in the prior art again.

Four U-shaped grooves 6 are uniformly distributed on the pipe body of the sleeve pipe 3, and the axis of each U-shaped groove 6 is parallel to the axis of the sleeve pipe 3. Two U-shaped grooves 6 in the four U-shaped grooves 6 are symmetrically communicated with the pipe wall of the sleeve pipe 3, U-shaped elastic pressing pieces 5 are arranged in the sleeve pipe 3, each U-shaped elastic pressing piece 5 comprises an arc-shaped section at the bottom, and elastic piece bodies are further extended from two ends of each arc-shaped section. The U-shaped pressing spring piece 5 is of an integral structure with the end part of one end in the sleeve 3, and the spring piece bodies at the two ends of the arc-shaped pressing spring piece are respectively positioned in the corresponding U-shaped grooves 6 symmetrically penetrating through the pipe wall of the sleeve 3.

All be equipped with recess 4 on the pipe body of the bell and spigot pipe 3 between two adjacent U type grooves 6, recess 4 lead to the groove, all recesses 4 all distribute on same circumference, and this circumference and bell and spigot pipe 3 coaxial distribution. The doctor can use the operation pincers centre gripping on recess 4 during the operation for can not appear skidding the condition such as when centre gripping sleeve 3.

The pipe body of the sleeve pipe 3 on one side of the groove 4 is provided with a pair of through holes 3a, the inner wall of the pipe body at the end part of the other end of the sleeve pipe 3 is also provided with a pair of guide grooves 3b, one end of each guide groove 3b is communicated with the corresponding through hole 3a, and the other end of each guide groove 3b is communicated with the end part of the other end of the sleeve pipe 3. The two guide grooves 3b are distributed in parallel along the axial direction of the sleeve 3.

An extension rod 2 which is in plug-in fit with the other end of the sleeve 3 is arranged, the extension rod 2 comprises a front rod body 2a and a rear rod body 2b, the diameter of the front rod body 2a is smaller than that of the rear rod body 2b, a conical transition is arranged between the front rod body 2a and the rear rod body 2b, a conical insertion part 2c is arranged at one end of the front rod body 2a, a conical connecting part 2d is arranged at one end of the rear rod body 2b, and a traction part 2e is arranged on the connecting part 2 d.

The front rod body 2a, the rear rod body 2b, the conical transition part, the inserting part 2c, the connecting part 2d and the traction part 2e are all coaxially distributed and are of an integral structure. The traction part 2e is made of steel wires which can be bent and have certain flexibility and strength, and the diameter of the traction part is not more than two millimeters.

Be equipped with logical groove 2f on extension rod 2, be equipped with dog 2m on leading to the left side in logical groove 2f, dog 2m and lead to leave certain interval between the groove wall on the left side of groove 2f for dog 2m and lead to and form through-hole 2n between the groove wall on the left side of groove 2 f. The stop block 2m and the through groove 2f are of an integrally formed structure.

A groove-shaped elastic sheet 8 made of elastic materials is arranged, arc-shaped clamping blocks 8a correspondingly matched with the through holes 3a are arranged on the outer walls of the two end parts of the elastic sheet 8, and the arc-shaped clamping blocks 8a and the elastic sheet 8 are of an integrated structure. The elastic sheet 8 is arranged in the through groove 2f, the installation method is that firstly, the groove wall at one side of the elastic sheet 8 is straightened, namely, the groove wall at one side of the elastic sheet 8 and the groove bottom are straightened into a straight line, then, the arc-shaped fixture block 8a at one end of the groove wall at the side is inserted into the through hole 2n until the groove bottom and the groove wall at the other side of the elastic sheet 8 are contacted with the fixture block 2m, and then, the groove wall at one side of the elastic sheet 8 is restored, so that the groove walls at two.

A pressing groove 2g communicated with the through groove 2f is formed in the rear rod body 2b on the right side of the stop block 2m, and the section of the pressing groove 2g is in an inverted trapezoid shape. So that a part of the body of the elastic sheet 8 passes through the pressing groove 2g, and a certain distance is left between the body of the elastic sheet 8 passing through and the bottom of the pressing groove 2 g.

When inserting insertion portion 2c into the other end of ferrule 3, the arc-shaped surface top end of arc-shaped fixture block 8a contacts with guide groove 3b on ferrule 3 first, and then arc-shaped fixture block 8a can contract inwards under the guide of guide groove 3b, so that the groove wall of elastic sheet 8 can also contract inwards to accumulate kinetic energy. Until the arc-shaped clamping block 8a is smoothly clamped into the through hole 3a, the groove wall of the elastic sheet 8 rebounds outwards to release kinetic energy, so that the connection between the sleeve pipe 3 and the extension rod 2 is realized. Further, as shown in fig. 4, when the arc-shaped latch 8a is latched into the through hole 3a, the tip of the arc-shaped latch 8a cannot protrude out of the through hole 3 a.

As shown in fig. 5, when the sleeve 3 and the extension rod 2 need to be separated, a doctor only needs to clamp the groove 4 by using one surgical forceps to clamp the sleeve 3, then uses the other surgical forceps to press the blade of the elastic sheet 8 in the pressing groove 2g downwards to enable the blade to be close to the bottom of the pressing groove 2g, at the moment, the arc-shaped fixture block 8a can be separated from the through hole 3a, and then the surgical forceps are moved to the left side, so that the insertion part 2c can be pulled out from the sleeve 3 from the other end of the sleeve 3, and the sleeve 3 is separated from the extension rod 2. The arrows in fig. 5 indicate the pressing force for pressing the elastic sheet 8.

Claims (4)

1. The utility model provides a support nail seat device for cast anastomat, includes to support nail seat (1), is equipped with socket pipe (3) on supporting nail seat (1), is equipped with at least one through-hole (3 a) on socket pipe (3), sets up one and corresponds complex extension rod (2) with socket pipe (3), and the one end of extension rod (2) is connected with traction portion (2 e), its characterized in that: the pipe body of the sleeve pipe (3) is uniformly provided with a group of U-shaped grooves (6), the extension rod (2) is provided with an elastic sheet (8), one end of the elastic sheet (8) is provided with a clamping block (8 a) corresponding to the through hole (3 a) in a matched mode, and the extension rod (2) is provided with a pressing groove (2 g) corresponding to the elastic sheet (8) in a matched mode.

2. The anvil device for tube-type anastomat according to claim 1, wherein: grooves (4) are arranged on the pipe bodies of the sleeve pipes (3) between the two adjacent U-shaped grooves (6).

3. The anvil device for tube-type anastomat according to claim 1, wherein: the clamping block (8 a) is columnar, and a chamfered edge (8 b) is arranged on one side of the upper end part of the clamping block (8 a).

4. The anvil device for tube-type anastomat according to claim 1, wherein: the inner wall of the pipe body of the sleeve pipe (3) is also provided with at least one guide groove (3 b), the guide groove (3 b) is communicated with the corresponding through hole (3 a), and the guide groove (3 b) is distributed along the axial direction of the sleeve pipe (3).

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