CN112155624A

CN112155624A - Absorbable anastomosis system

Info

Publication number: CN112155624A
Application number: CN202011229871.2A
Authority: CN
Inventors: 徐斌; 曹烽; 李雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-01-01

Abstract

The invention belongs to the technical field of medical instruments, and relates to an absorbable anastomosis system which comprises a fastening strip and an anastomosis nail, wherein the fastening strip and the anastomosis nail are respectively made of absorbable materials, the anastomosis nail is provided with a crown part and leg parts which are respectively and vertically bent from two ends of the crown part, and a locking part arranged on the leg parts is matched with a tooth tongue of the fastening strip to realize locking connection of the anastomosis nail and the fastening strip. The product of the invention has simple, practical, reasonable and ingenious structure, creatively combines the tooth buckle principle with the absorbable material, realizes the absorbable upgrade of the anastomosis nail, creates conditions for avoiding postoperative foreign body pathogenic risk for an operation patient, and has great clinical value and economic benefit.

Description

Absorbable anastomosis system

Technical Field

The invention belongs to the technical field of medical instruments, and relates to an absorbable anastomosis system.

Background

Staplers are widely used in surgical operations to close the severed ends of surgically excised tissue in an anastomotic manner, instead of stapling, on the same principle as stapling books. Therefore, at present, one side of a jaw of the anastomat is provided with a nail box, the other side corresponding to the jaw is provided with a chopping block, the nail box is internally provided with metal titanium nails like staples, after tissues to be anastomosed are placed in the jaw of the anastomat for being bound, two legs of the n-shaped titanium nails penetrate through the tissues and become B-shaped under the action of the chopping block, and the tissues are fixed and anastomosed. On a jaw of the finished product anastomat, 2-3 rows of anastomosis nails are arranged in a staggered mode along the axial direction according to the length of tissues to be anastomosed, so that a section of anastomosis can be formed, and the anastomosis is like suture of staggered stitches. There is a problem in that after the tissue is healed, these titanium staples remain in the body for the lifetime of foreign bodies and run the risk of scattering around, possibly causing other diseases, so that there is a clinical need for absorbable anastomotic devices.

Disclosure of Invention

The present invention addresses the above-described problems by providing an absorbable anastomosis system that does not leave foreign material in the body for a long period of time after clinical use.

According to the technical scheme of the invention: an absorbable anastomosis system, characterized by: the anastomosis nail comprises a fastening strip and an anastomosis nail which are made of absorbable materials respectively, the anastomosis nail is provided with a crown part and a leg part formed by extending after the crown part is bent, and a locking part arranged on the leg part is matched with a tooth tongue of the fastening strip to realize the locking connection of the anastomosis nail and the fastening strip.

As a further improvement of the invention, the buckle strip is provided with two through holes, tooth tongues are respectively arranged in the through holes, two ends of the crown part are vertically bent to form two leg parts, and the inner side of the lower end of each leg part is respectively provided with a locking part to be matched with the corresponding tooth tongue.

As a further improvement of the invention, the locking part is at least inverted teeth or at least one clamping groove arranged on the inner side of the lower end of the leg part so as to be in locking fit with the tooth tongue.

As a further improvement of the invention, the tooth tongues are arranged on adjacent portions of two through holes, one tooth tongue being arranged in each through hole.

As a further improvement of the invention, the lower end of the leg part is provided with a puncture tip, and the puncture tip forms a puncture tip edge bevel corresponding to the outer side of the leg part.

As a further improvement of the invention, the inner side of the crown part is a smooth surface or a resistance surface.

As a further improvement of the invention, the resistance surface is a wave surface or a tooth surface.

As a further improvement of the invention, the length of the crown part is less than 10 mm, and the length of the leg part is less than 5 mm; the depth of the through hole is less than 5 mm.

The invention has the technical effects that: the product of the invention has simple, practical, reasonable and ingenious structure, creatively combines the tooth buckle principle with the absorbable material, realizes the absorbable upgrade of the anastomosis nail, creates conditions for avoiding postoperative foreign body pathogenic risk for an operation patient, and has great clinical value and economic benefit.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural view of the fastening strip of the present invention.

Figure 4 is a schematic view of the anvil structure used in conjunction with the present invention.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In fig. 1 to 4, the device includes a leg 101, a locking portion 102, a piercing tip inclined surface 103, a crown 104, a piercing tip 105, a buckle 200, a through hole 201, a tooth tongue 202, an anvil 301, a strip groove 302, and the like.

As shown in fig. 1 and 2, the present invention is an absorbable anastomosis system, which includes a strip 200 and a staple respectively made of absorbable materials, the staple has a crown 104 and a leg 101 extending from the crown 104 after bending, and a locking portion 102 of the leg 101 cooperates with a tooth tongue 202 of the strip 200 to realize locking connection of the staple and the strip 200.

In specific production practice, the buckle strip 200 has two through holes 201, wherein the through holes 201 are respectively provided with a tooth tongue 202, two ends of the crown 104 are vertically bent to form two leg portions 101, and the inner side of the lower end of each leg portion 101 is respectively provided with a locking portion 102, so that the locking portion 102 and the tooth tongue 202 are matched and locked in clinical use. It is understood that the above-mentioned embodiment is a preferred embodiment of the present invention, and there are various modifications in the present invention, such as the crown portion 104 leading out a plurality of leg portions 101, and correspondingly, the buckle strip 200 is provided with through holes 201 and tongues 202 in the same number as the leg portions 101.

The optimized scheme for realizing the matching locking of the locking part 102 and the tooth tongue 202 is as follows: the locking part 102 is arranged on the inner side of the lower part of the leg part 101, correspondingly, the tooth tongues 202 are arranged on the adjacent parts in the two through holes 201, the back parts of the tooth tongues 202 arranged in the two through holes 201 are opposite, and the tooth tongues 202 are distributed in the holes in a splayed shape, so that the locking part 102 is effectively matched with the tooth tongues 202 when the anastomosis nail is pressed down in the clinical use process, and the anastomosis fixation of tissues is realized.

In addition to the above preferred embodiments, there may be other alternatives to the specific implementation manner of the locking portion 102 and the latch 202, for example, the locking portion 102 is disposed on the outer side of the lower end of the leg portion 101, and correspondingly, the position of the latch 202 on the through hole 201 of the buckle strip 200 is adaptively adjusted to ensure that the locking portion 102 can be always locked and engaged with the latch 202 when the staple is pressed down in clinical use.

In the specific design, besides considering the specific position of the locking portion 102 on the leg 101 and the specific position of the tooth tongue 202 on the buckle strip 200, the shape of the locking portion 102 needs to be designed, and the specific scheme is as follows:

the locking portion 102 employs at least one pawl or at least one catch to lockingly engage the tooth tongue 202. It can be understood that, in order to realize that the depth of the locking part is adjustable when the anastomosis nail is locked and connected with the buckle strip 200, a plurality of clamping grooves or a plurality of inverted teeth which are arranged in sequence can be arranged according to specific requirements. The locking of the anastomosis nail and the buckling strip 200 during tissue anastomosis is realized through the matching of the clamping grooves or the inverted teeth and the tooth tongues 202.

In order to facilitate the tissue piercing by staples in a labor-saving manner, the lower end of the leg 101 is provided with a piercing tip 105, and the piercing tip 105 forms a piercing sharp edge bevel 103 corresponding to the outer side of the leg 101.

The inside of the crown 104 is smooth or resistive, and the resistive is wavy or toothed.

The length of the crown 104 is less than 10 mm, and the length of the leg 101 is less than 5 mm; the through hole 201 has a hole depth of less than 5 mm.

In particular, the profile of the strip 200 is generally rectangular, and the through-hole 201 has a rectangular, square, circular, semicircular, elliptical, polygonal geometry, so as to pass through the leg 101 of the staple.

As shown in fig. 1 to 4, the product of the present invention is used in clinical practice, and is used in combination with a corresponding anvil 301 and a stapler forceps, and since the fastener strip 200 is locked and connected to the staple after the tissue is anastomosed and fixed and is left in the body, the detachable connection between the fastener strip 200 and the anvil 301 is required. To this end, a mating anvil 301 is provided with a plurality of slots 302 for receiving the fastener strips 200 as desired.

The strip grooves 302 are arranged in a plurality of rows in a staggered manner, the rows are mutually parallel, and the buckling strips 200 are sequentially placed in the corresponding strip grooves 302 in clinical use.

As shown in fig. 1 and 2, the working principle of the invention is as follows: the product adopts absorbable biological materials with biocompatibility and proper hardness to injection mold the Pi-shaped anastomosis nail and the double-hole buckling strip; secondly, a nail box matched with an anastomosis nail and a double-hole button strip and a chopping board 301 with a button strip groove are injected by plastic with biocompatibility and proper hardness; thirdly, the anastomosis nails are loaded into the nail box, the double-hole buckling strips are loaded into the buckling strip grooves of the cutting board 301, and are respectively installed on the two sides of the jaw of the anastomat and assembled and matched with the nail pushing mechanism of the anastomat; when the anastomotic nail is anastomotic with the tissue, the anastomotic nail is pushed by a nail pushing organ, the two legs penetrate through the tissue, the anastomotic nail is respectively inserted into the two holes of the two-hole buckling strip, and the inverted teeth or inverted tooth grooves on the inner side of the anastomotic nail are buckled with the tooth tongues in the holes to form a structural state which can only go deep and cannot be pulled out, so that the purpose of firmly anastomosing the tissue is achieved.

Claims

1. An absorbable anastomosis system, characterized by: the locking structure comprises a fastener strip (200) and a staple, wherein the fastener strip (200) and the staple are respectively made of absorbable materials, the staple is provided with a crown (104) and a leg (101) formed by extending after the crown (104) is bent, and a locking part (102) arranged on the leg (101) is matched with a tooth tongue (202) of the fastener strip (200) to realize locking connection of the staple and the fastener strip (200).

2. The absorbable anastomosis system of claim 1, wherein: the buckle strip (200) is provided with two through holes (201), tooth tongues (202) are arranged in the through holes (201), two legs (101) are formed after two ends of the crown (104) are vertically bent, and the inner side of the lower end of each leg (101) is provided with a locking part (102) respectively so as to be matched with the corresponding tooth tongues.

3. The absorbable anastomosis system of claim 2, wherein: the locking part (102) is at least one inverted tooth or at least one clamping groove arranged on the inner side of the lower end of the leg part (101) so as to be in locking fit with the tooth tongue (202).

4. The absorbable anastomosis system of claim 2, wherein: the tooth tongues (202) are arranged on adjacent parts in the two through holes (201), and one tooth tongue (202) is arranged in each through hole (201).

5. The absorbable anastomosis system of claim 1, wherein: the lower end of the leg part (101) is provided with a puncture tip (105), and the puncture tip (105) forms a puncture tip cutting edge inclined plane (103) corresponding to the outer side of the leg part (101).

6. The absorbable anastomosis system of claim 1, wherein: the inner side of the crown part (104) is a smooth surface or a resistance surface.

7. The absorbable anastomosis system of claim 6, wherein: the resistance surface is a wavy surface or a tooth-shaped surface.

8. The absorbable anastomosis system of claim 1, wherein: the length of the crown part (104) is less than 10 mm, and the length of the leg part (101) is less than 5 mm; the through hole (201) has a hole depth of less than 5 mm.