CN111419316A

CN111419316A - Inclined plane osculating assembly and inclined plane tubular anastomat with same

Info

Publication number: CN111419316A
Application number: CN202010366982.1A
Authority: CN
Inventors: 莫易凡; 林聪杰; 邱木旺; 张帆; 赖财汉
Original assignee: Surgaid Medical (xiamen) Co ltd
Current assignee: Surgaid Medical (xiamen) Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-07-17

Abstract

The invention relates to a bevel osculating component and a bevel tubular anastomat with the same, wherein the bevel osculating component comprises a nail abutting seat component and a nail bin component; the nail pushing seat assembly comprises a nail pushing seat, and the nail bin assembly comprises a nail bin and a plurality of anastomotic nails arranged in the nail bin; the anastomotic surface of the nail abutting seat opposite to the nail bin is an inclined surface which forms a certain included angle with the horizontal surface; the anastomotic nails comprise nail beams and nail feet respectively connected to the two ends of the nail beams, and the planes where all the anastomotic nail beams are located and the planes formed by the tips of the nail feet of all the anastomotic nails are parallel to the anastomotic plane; the inclined plane tubular anastomat comprises an inclined plane osculating component; after the inclined-plane tubular anastomat is used for anastomosis, the suture surface on the intestinal canal is inclined, and only two scar points instead of a circle of scar are arranged on any radial section of the intestinal canal anastomosis section, so that the elasticity of the original intestinal canal is ensured, and the obstruction and blockage of the intestinal canal are avoided.

Description

Inclined plane osculating assembly and inclined plane tubular anastomat with same

Technical Field

The invention relates to an inclined plane osculating component and an inclined plane tubular anastomat with the same.

Background

At present, a disposable tubular anastomat is adopted in the digestive tract reconstruction surgery to suture the intestinal tubes to be connected. The working principle of the disposable tube-type anastomat is similar to that of a stapler. The disposable digestive tract anastomat is characterized by that two rows of mutually-staggered anastomotic nails which are circularly arranged are impacted on the tissue of digestive tract, and at the same time the tissue of its inner side is cut off by means of cutting knife, and said anastomat can be used for conveniently anastomosing tubular organ. When the stapler works, the staple pushing plate pushes out anastomotic staples from the staple bin, the anastomotic staples are formed into a B shape under the action of the staple abutting seat and the staple abutting groove, and then the cutting knife cuts off tissues after the staples to finish the anastomosis of the tissues.

The existing tubular anastomat osculating component is flat-headed, a circle of inelastic annular connection is formed in an intestinal canal after anastomosis, tissues grow into the intestinal canal to form a whole circle of scabs, the intestinal canal is easy to be narrowed, and food or excrement is difficult to pass or even blocked. The secondary operation is needed, which brings great pain and economic burden to the patient. For this reason, surgeons have proposed the concept of a beveled tubular stapler as early as the 90's of the last century: the osculating component comprises a nail pushing seat and a nail bin, wherein inclined planes which can be matched with each other are arranged on the nail pushing seat and the nail bin. However, the concept is only the concept, and no inclined-plane tubular stapler is available on the market at present, the main reason is that the inclined-plane stapler has high requirements on the forming technology of the staples, and the simple conventional titanium staple cannot correctly form the B-shaped staple at all.

Disclosure of Invention

The invention aims to provide an inclined plane osculating component which has a simple structure and can enable an anastomosis nail to effectively form a B-shaped nail and an inclined plane tubular anastomat with the inclined plane osculating component.

The purpose of the invention is realized by the following technical scheme: a bevel osculating component comprises a nail abutting seat component and a nail bin component; the nail pushing seat assembly comprises a nail pushing seat, and the nail bin assembly comprises a nail bin and a plurality of anastomotic nails arranged in the nail bin;

the anastomotic surface of the nail abutting seat opposite to the nail bin is an inclined surface which forms a certain included angle with the horizontal surface; the anastomotic nails comprise nail beams and nail feet respectively connected to the two ends of the nail beams, and planes where all the anastomotic nail beams are located and planes formed by the tips of the nail feet of all the anastomotic nails are parallel to the anastomotic surface.

An inclined plane tubular anastomat comprises an inclined plane osculating component.

Compared with the prior art, the invention has the advantages that:

1. the anastomotic surface of the oblique osculating component, which is opposite to the nail abutting seat and the nail bin, is an oblique surface which forms a certain included angle with the horizontal plane, so that after an anastomat with the oblique osculating component is used for anastomosis, the suture surface on the intestinal canal is also oblique, and only two scars are formed on any radial section of the intestinal canal anastomosis section instead of a circle of scars, thereby ensuring the elasticity of the original intestinal canal and avoiding the obstruction and blockage of the intestinal canal. The shape of the suture surface is an ellipse, which increases the area of the anastomotic passage and avoids the intestinal canal anastomotic stoma stenosis.

2. Due to the design of the nail pushing groove and the R angle of the nail pushing plate, the anastomotic nails are effectively prevented from sliding on the inclined plane of the nail pushing plate, and the inclined nails can be formed correctly and effectively.

3. The arrangement of the guide bump on the anastomotic surface of the nail bin can increase the biting force of the nail bin on anastomotic tissue, effectively prevent the cutting knife from sliding the tissue when cutting the tissue, and can prolong the length of the nail pushing plate on a guide channel for guiding the anastomotic nails, thereby being more beneficial to the correct forming of the anastomotic nails.

4 the tip part of the nail foot of the oblique nail inclines inwards for a certain angle, thereby greatly improving the nail forming stability of the oblique plane tubular anastomat and effectively solving the technical problem that the oblique plane tubular anastomat can not correctly form the B-shaped nail.

5. The inclined plane osculating component has the advantages of reasonable design, simple and compact structure and easy realization.

6. The inclined plane tubular anastomat provided by the invention is provided with the inclined plane osculating component, has the advantages of convenience and rapidness in operation, capability of effectively forming nails and good anastomosis effect, can ensure the elasticity of the original intestinal canal, avoids the obstruction and blockage of the intestinal canal and avoids the stenosis of an intestinal canal anastomosis orifice.

Drawings

FIG. 1 is a schematic view of the bevel osculating assembly of the present invention.

FIG. 2 is a schematic disassembled view of the bevel osculating assembly of the present invention.

Fig. 3 is a schematic structural view of the ejector pin plate of the present invention.

Fig. 4 is a sectional view a-a of fig. 3.

Fig. 5 is an enlarged view of I in fig. 4.

Fig. 6 is a diagram of the relationship between the staple pusher plate and staples of the present invention.

FIG. 7 is a schematic structural view of a staple cartridge of the present invention.

FIG. 8 is an enlarged view of II in FIG. 7

Fig. 9 is a schematic structural view of a cartridge mating surface of the present invention.

FIG. 10 is a sectional view taken along line B-B of FIG. 9

Fig. 11 is a schematic structural view of the staple of the present invention.

FIG. 12 is a schematic structural view of an embodiment of a horizontal nail of the present invention.

FIG. 13 is a schematic view of the construction of the skewed staple of the present invention.

FIG. 14 is a schematic structural view of the beveled tubular stapler of the present invention.

Description of reference numerals: 1 inclined plane osculating component, 11 nail seat component, 111 nail seat, 112 nail cap, 113 knife backing ring, 114 circlip pipe, 12 nail box component, 121 nail box, 1211 strip nail outlet hole, 1212 guide projection, 12121 guide groove, 122 nail, 1221 nail beam, 1222 nail foot, 1223 transition arc, 1224 horizontal nail, 1225 oblique nail, 123 nail pushing plate, 1231 nail pushing groove, 12311R corner, 124 nail box sleeve, 125 annular knife, 126 positioning shaft, 2 bent pipe, 3 fixed handle, 4 safety button, 5 adjusting nut, 6 movable handle.

Detailed Description

The invention is described in detail below with reference to the drawings and examples of the specification:

the first embodiment is as follows:

fig. 1 to 13 are schematic views illustrating an embodiment of a bevel osculating assembly according to the present invention.

The inclined plane osculating component comprises a nail abutting seat component 11 and a nail bin component 12; the staple abutting seat assembly 11 comprises a staple abutting seat 111, and the staple cartridge assembly 12 comprises a staple cartridge 121 and a plurality of staples 122 arranged in the staple cartridge 121; the anastomotic surface of the nail abutting seat 111 opposite to the nail bin 121 is an inclined surface forming a certain included angle with the horizontal surface; the staples 122 include a staple beam 1221 and staple legs 1222 connected to both ends of the staple beam 1221, respectively, and a plane where all of the staple beams 1221 of the staples 122 are located and a plane where tips of the staple legs 1222 of all of the staples 122 are formed are parallel to the staple plane.

The nail abutting seat assembly 11 further comprises a nail abutting cap 112 arranged on the front end face of the nail abutting seat 111, a knife backing ring 113 arranged on the rear end face of the nail abutting seat 111, and a clamp spring tube 114 connected with the nail abutting seat 111 and extending backwards; the contact surface of the nail abutting cap 112 and the nail abutting seat 111 and the working surface of the knife backing ring 113 are parallel to the anastomosis surface.

The staple cartridge assembly 12 further comprises a staple cartridge sleeve 124 arranged on the periphery of the staple cartridge 121, an annular knife 125 arranged in the staple cartridge sleeve 124, and a positioning shaft 126 positioned in the staple cartridge sleeve 124, wherein the front end surface of the staple cartridge sleeve 124 and the knife front surface of the annular knife 125 are parallel to the anastomosis surface.

The included angle formed by the inosculation surface and the horizontal plane is 10-45 degrees.

As shown in fig. 2 and 13, the anastomotic surface is parallel to the front end surface of the cartridge sleeve 124, the included angle α between the front end surface of the cartridge sleeve 124 and the horizontal plane (i.e., the radial direction of the cartridge sleeve 124) is 10 degrees to 45 degrees, i.e., the included angle α between the anastomotic surface and the horizontal plane is 10 degrees to 45 degrees, and the included angle α between the nail beam 1221 of the oblique nail 1225 and the horizontal plane is 10 degrees to 45 degrees.

The oblique plane osculating component 1 is similar to the osculating component of a conventional tubular anastomat in structure, and is mainly characterized in that the anastomotic surface of the nail abutting seat 111 opposite to the nail bin 121 is an oblique plane forming a certain included angle with the horizontal plane, a plane where all the nail beams 1221 of the anastomotic nails 122 are located together, and a plane formed by the tips of the nail feet 1222 of all the anastomotic nails 122 is parallel to the anastomotic surface, in addition, the contact surface of the nail abutting cap 112 and the nail abutting seat 111 of the nail abutting seat component 11 and the working surface of the knife backing ring 113 are all parallel to the anastomotic surface, and the front end surface of the nail bin sleeve 124, the knife edge surface of the annular knife 125 and the working surface of the front end of the nail pushing plate 123 of the nail bin component 12. In addition, the nail pushing seat 111 of the bevel osculating assembly 1 is also provided with a nail pushing groove corresponding to the staples 122.

The anastomotic surface of the nail abutting seat 111 opposite to the nail bin 121 is an inclined surface, so that after the anastomat with the inclined surface anastomotic-cutting component 1 is used for anastomosis, the suture surface on the intestinal canal is also changed into an inclined shape, and any radial section of the intestinal canal anastomosis section is only provided with two scar points instead of a circle of scar, thereby ensuring the elasticity of the original intestinal canal and avoiding the blockage and the obstruction of the intestinal canal.

The nail cartridge assembly 12 further comprises a nail pushing plate 123, and a working surface at the front end of the nail pushing plate 123 is parallel to the anastomosis surface.

The working surface of the nail pushing plate 123 is provided with a plurality of nail pushing grooves 1231 corresponding to the staples 122.

The staple leg 1222 and the staple beam 1221 of the staple 122 are connected by a transition arc 1223, the connection between the groove bottom wall and the groove side wall of the staple pushing groove 1231 is an R-angle 12311, and the R-angle 12311 is matched with the transition arc 1223 between the staple leg 1222 and the staple beam 1221.

Of course, the joint between the leg 1222 and the beam 1221 of the staple 122 may also be a chamfer a, and the joint between the bottom wall and the side wall of the staple pushing groove 1231 is a chamfer B, where the chamfer a matches with the chamfer B.

As shown in fig. 7-10: a plurality of strip-shaped nail outlet holes 1211 for accommodating the nails discharged from the staples 122 are formed in the anastomotic surface of the staple cartridge 121, guide lugs 1212 extending forwards are respectively arranged at two ends of the strip-shaped nail outlet holes 1211, and guide grooves 12121 for allowing the staple pins 1222 of the staples 122 to pass through are formed in the inner side walls of the guide lugs 1212.

The arrangement of the guide bump 1212 can increase the biting force of the nail bin 121 on the anastomotic tissue, effectively prevent the cutting knife from sliding the tissue when cutting the tissue, and can extend the length of the guide channel of the nail pushing plate 123 for guiding the anastomotic nail 122, thereby being more beneficial to the correct forming of the anastomotic nail 122.

The staples 122 are divided into horizontal staples 1224 having staple beams 1221 on a horizontal plane and oblique staples 1225 having staple beams 1221 at an angle to the horizontal plane; the horizontal nails 1224 are respectively arranged at the lowest point and the highest point of a plane where all the staple beams 1221 of the staples 122 are located, and the inclined nails 1225 are arranged in other areas except the lowest point and the highest point; the included angle between the nail beam 1221 of the oblique nail 1225 and the horizontal plane is equal to the included angle between the anastomotic surface and the horizontal plane.

The lowest point of a plane where all the staple nails 122 and the staple beams 1221 are located is named as the 6 o 'clock position of the plane, the highest point of the plane is named as the 0 o' clock position of the plane, and the left end point and the right end point of the short axis of the plane are named as the 9 o 'clock position and the 3 o' clock position of the plane respectively; the horizontal nails 1224 are placed at the 6 o 'clock position and the 0 o' clock position of the plane, and the oblique nails 1225 are placed in the areas other than the 6 o 'clock position and the 0 o' clock position, wherein the inclination angles of the oblique nails 1225 placed at the 3 o 'clock position and the 9 o' clock position are the largest, and the inclination angles of the oblique nails 1225 are gradually decreased toward both sides according to the 3 o 'clock position or the 9 o' clock position. Horizontal staples 1224 and angled staples 1225 mate with staple pushing slots 1231 of staple pusher plate 123, and staple pusher plate 123 bends legs 1222 of staples 122 into shape under the reverse thrust of the staple pushing slots.

Due to the arrangement of the staple pushing groove 1231, the staples 122 can be accurately positioned on the staple pushing plate 123, so that the staples 122 always keep the correct positions in the firing process, and the staple 122 can be effectively ensured to be correctly formed into a B-like shape after being fired. R angle 12311 of nail pushing plate 123 matches transition arc 1223 of staple 122, and design of R angle 12311 of nail pushing plate 123 and transition arc 1223 of staple 122 effectively prevents staple 122 from slipping on the inclined surface of nail pushing plate 123, and ensures that staple 122, especially inclined staple 1225, can be effectively formed. The staples 122 are titanium staples made of medical titanium.

Similar to the common staple structure, the horizontal staple 1224 of the present invention is composed of a staple beam 1221 and staple legs 1222, wherein the staple beam 1221 is located on a horizontal plane, and the two staple legs 1222 are respectively disposed at two ends of the staple beam 1221 and slightly open outwards to form a certain angle. The oblique nail 1225 of the present invention has substantially the same structure as a conventional staple, but the difference between the oblique nail 1225 and the conventional staple is that the nail beam 1221 of the oblique nail 1225 forms an angle with the horizontal plane, and the angle between the nail beam 1221 of the oblique nail 1225 and the horizontal plane is equal to the angle between the staple plane and the horizontal plane.

The staple beams 1221 of the staples 122 are tightly attached to the staple pushing grooves 1231 of the staple pushing plate 123, and when the handle of the tubular stapler with the oblique anastomosis cutting assembly 1 is grasped and the staple pushing plate 123 is pushed forward, the staples 122 can be pushed, so that the legs 1222 of the staples 122 simultaneously reach the staple abutting seats 111, and the tissue is sutured, at this time, the oblique staples 1225 form an oblique "B" shape, and the horizontal staples 1224 form a "B" shape.

The pointed end of the foot 1222 of the angled staple 1225 is angled inwardly at angle β, where the angle β is 3-15.

As shown in fig. 13, the pointed end of leg 1222 of ramp peg 1225 of the present invention is angled inwardly at angle β, angle β being 3-15 degrees, the angled inward pointing of the pointed end of leg 1222 of ramp 1225 further facilitates the inward bending of ramp 1225 into a "B" like shape, and the angled inward pointing of the pointed end of leg 1222 of ramp 1225 effectively solves the problem of the difficulty of a ramp stapler staple to effectively bend into a "B" like shape.

In addition, the design that the front working surface of the nail pushing plate 123 is an inclined surface, the design of the nail pushing groove 1231 and the design of the oblique nail 1225 that the tip of the nail foot 1222 is inclined inwards by a certain angle are combined, so that the stability of forming the nail of the anastomosis nail is further improved, and the problem that the oblique tubular anastomat cannot correctly form the B-shaped nail is effectively solved.

In the oblique nail 1225 of fig. 13, the angle α between the beam 1221 and the horizontal plane is 10 to 45 °, the angle between the tip of the foot 1222 and the horizontal plane is 84 °, and the angle between the extension of the foot 1222 except the tip and the horizontal plane is 95 °.

The tip of the foot 1222 of the horizontal pin 1224 may also be angled inward and the angle may be 3-15 °. The tip of the foot 1222 of the horizontal spike 1224 is angled inward to facilitate the inward bending of the horizontal spike 1224 into a "B" shape.

Example two: fig. 14 is a schematic view of an embodiment of the inclined tube-type anastomat provided by the invention.

The inclined plane tubular anastomat comprises the inclined plane osculating component 1.

As shown in fig. 14: the inclined plane tubular anastomat is a disposable article like a conventional tubular anastomat, has the same structure as the conventional tubular anastomat, and comprises an elbow pipe 2 connected with an inclined plane osculating component 1, a fixed handle 3, a safety button 4, an adjusting nut 5 and a movable handle 6. The main difference between the inclined plane tubular anastomat and the conventional tubular anastomat is that the osculating component of the inclined plane tubular anastomat is the inclined plane osculating component 1, and the osculating component of the conventional tubular anastomat is a common flat head osculating component.

The use method of the inclined plane tubular anastomat is similar to that of the conventional tubular anastomat, and the use method is approximately as follows:

firstly, the disposable inclined plane tubular anastomat is taken out, and the protective cover of the nail bin is detached. The bevel tubular anastomat is placed into the organ to be anastomosed until the nail abutting seat 111 is completely exposed. And rotating the adjusting nut 5 at the rear part of the inclined-plane tubular anastomat anticlockwise, and opening the space between the nail abutting seat assembly 11 and the nail bin assembly 12 to enable the space to be large enough to accommodate two broken ends of an anastomotic part. The purse string abutting against one end of the nail seat component 11 is tightened, meanwhile, the purse string is bound on the clamp spring pipe 114 with moderate force, then, the purse string at one end of the positioning shaft 126 of the nail bin component 12 is tightened, and the purse string is bound on the positioning shaft 126 with moderate force. The tail adjusting nut 5 is rotated clockwise to draw the tissues at the two ends together until the indication reaches the green area of the indication sign. The safety button is opened, the movable handle 6 is gripped to trigger, and when the safety button has crisp click sound and obvious breakthrough feeling, the triggering is finished. And rotating the adjusting nut 5 anticlockwise, and slowly drawing the tubular anastomat outwards.

While the invention has been shown and described with respect to particular embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the invention. It is understood, therefore, that the invention is not to be in any way limited except by the appended claims and their equivalents.

Claims

1. An inclined plane osculating component is characterized in that: the nail pushing device comprises a nail pushing seat assembly (11) and a nail bin assembly (12); the nail abutting seat assembly (11) comprises a nail abutting seat (111), and the nail bin assembly (12) comprises a nail bin (121) and a plurality of anastomotic nails (122) arranged in the nail bin (121);

the anastomotic surface of the nail abutting seat (111) opposite to the nail bin (121) is an inclined surface which forms a certain included angle with the horizontal plane; the staples (122) comprise staple beams (1221) and staple legs (1222) which are connected to two ends of the staple beams (1221) respectively, and a plane where all the staple beams (1221) of the staples (122) are located and a plane formed by tips of the staple legs (1222) of all the staples (122) are parallel to a staple plane.

2. The bevel osculating assembly of claim 1, wherein: the nail bin assembly (12) further comprises a nail pushing plate (123), and a working surface at the front end of the nail pushing plate (123) is parallel to the inosculating surface.

3. The bevel osculating assembly of claim 2, wherein: the working surface of the nail pushing plate (123) is provided with a plurality of nail pushing grooves (1231) corresponding to the anastomosis nails (122).

4. The bevel osculating assembly of claim 3, wherein: the staple leg (1222) and the staple beam (1221) of the staple (122) are connected through a transition arc (1223), the joint of the bottom wall and the side wall of the staple pushing groove (1231) is an R angle (12311), and the R angle (12311) is matched with the transition arc (1223) between the staple leg (1222) and the staple beam (1221).

5. The bevel osculating assembly of claim 1, wherein: the anastomotic surface of the nail bin (121) is provided with a plurality of strip-shaped nail outlet holes (1211) for accommodating the nail outlet of the anastomotic nail (122), two ends of each strip-shaped nail outlet hole (1211) are respectively provided with a guide projection (1212) extending forwards, and the inner side wall of each guide projection (1212) is provided with a guide groove (12121) for accommodating the nail foot (1222) of the anastomotic nail (122) to pass through.

6. The bevel osculating assembly of claim 1, wherein: the staples (122) are divided into horizontal staples (1224) with staple beams (1221) positioned on a horizontal plane and inclined staples (1225) with staple beams (1221) forming a certain included angle with the horizontal plane; the horizontal nails (1224) are respectively arranged at the lowest point and the highest point of a plane where all the staple beams (1221) of the staples (122) are located together, and the inclined nails (1225) are arranged in other areas except the lowest point and the highest point; the included angle between the nail beam (1221) of the inclined nail (1225) and the horizontal plane is equal to the included angle between the anastomotic surface and the horizontal plane.

7. The bevel osculating assembly according to claim 6, wherein the tip of the foot (1222) of the oblique staple (1225) is angled inwardly at an angle β, the angle β being 3 ° -15 °.

8. The bevel osculating assembly of claim 1, wherein: the nail abutting seat assembly (11) further comprises a nail abutting cap (112) arranged on the front end face of the nail abutting seat (111), a cutter backing ring (113) arranged on the rear end face of the nail abutting seat (111) and a clamp spring pipe (114) connected with the nail abutting seat (111) and extending backwards; the contact surface of the nail abutting cap (112) and the nail abutting seat (111) and the working surface of the knife pad ring (113) are parallel to the inosculation surface.

9. A bevel osculating assembly according to any of claims 1-8, wherein: the included angle formed by the inosculation surface and the horizontal plane is 10-45 degrees.

10. An inclined plane tubular anastomat is characterized in that: it comprises a bevel osculating assembly (1) according to claim 1.