CN113749716A

CN113749716A - Micro-motion type anastomat

Info

Publication number: CN113749716A
Application number: CN202111316576.5A
Authority: CN
Inventors: 时瑞; 曾达; 陈恒; 郭锦彬; 梁雄伟
Original assignee: Shanghai Dabo Medical Technology Co ltd
Current assignee: Shanghai Dabo Medical Technology Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2021-12-07
Anticipated expiration: 2041-11-09
Also published as: CN113749716B

Abstract

The invention discloses a micro-motion type anastomat which comprises a first annular inosculating part, a second annular inosculating part and a plurality of inosculating nails, wherein the first annular inosculating part and the second annular inosculating part are arranged oppositely, the inosculating nails are used for fastening the first annular inosculating part and the second annular inosculating part, the first annular inosculating part and the second annular inosculating part are respectively formed by splicing and combining a plurality of first inosculating gaskets and second inosculating gaskets, and the positions between every two adjacent first inosculating gaskets in the first annular inosculating part and the positions between every two adjacent second inosculating gaskets in the second annular inosculating part are configured to be capable of generating micro-motion displacement so as to increase the freedom degree of motion between every two adjacent gaskets. According to the micro-motion anastomat, a certain degree of freedom of movement can be generated between every two adjacent gaskets to freely creep along with the digestive tract, so that healing of an anastomotic stoma is facilitated, and pain caused by mutual dragging of the gaskets to a patient is relieved.

Description

Micro-motion type anastomat

Technical Field

The invention relates to the technical field of medical equipment, in particular to a micro-motion anastomat.

Background

The traditional human digestive tract anastomosis is carried out by manual suture by using suture or suture materials, can better reconstruct the continuity of the digestive tract and solves the difficult problems of a plurality of surgical operations. However, the manual suture has high requirements on the suture technology of surgeons, the difference of the anastomosis effect is huge due to different suture technology levels and clinical experiences, the manual suture takes a long time, and the existence of the suture line of the anastomotic stoma may cause mucosal erosion and tissue inflammatory edema, promote scar hyperplasia and easily form anastomotic stenosis.

The invention discloses a circular anastomosis ring, which is used for the anastomosis of digestive tracts for nearly one century, and is disclosed in Chinese document CN212369024U (application date: 2020, 05 and 19), and comprises an anastomosis ring body, wherein the anastomosis ring body is sequentially divided into a suturing nail, a lower rubber ring and an upper rubber ring from bottom to top, a plurality of elastic sheets are arranged between the suturing nail and the lower rubber ring, the suturing nail comprises a support ring, a plurality of long nails are arranged at the top end of the support ring, and the long nails are uniformly distributed around the circle center of the support ring. However, when the circular anastomosis ring of the technical scheme is applied to anastomosis of the digestive tract, because the upper rubber ring, the lower rubber ring and the support ring are all of an integrated annular structure, the circular anastomosis ring does not have enough freedom of movement to freely creep along with the digestive tract, and further healing of the anastomosis port is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a micro-motion anastomat which mainly solves the technical problem that the existing anastomosis device with an integrated annular structure cannot provide enough freedom of movement to affect the healing of an anastomosis along with the free peristalsis of a digestive tract.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a fine motion formula anastomat, including two first annular coincide portion and the second annular coincide portion that set up relatively and a plurality of anastomotic nail that are used for fastening first annular coincide portion and second annular coincide portion, first annular coincide portion and second annular coincide portion are assembled the combination and are formed by a plurality of first gasket and the second gasket of coincideing respectively, first gasket of coincideing includes outer circular arc section and interior circular arc section, both ends are formed with respectively and can supply the first nail hole of outer circular arc and the second nail hole of outer circular arc that anastomotic nail adaptation was inserted about the outer circular arc section, both ends are formed with respectively and can supply the first nail hole of interior circular arc and the second nail hole of interior circular arc that anastomotic nail adaptation was inserted about the inner circular arc section, first annular coincide portion and second annular coincide portion correspond from top to bottom and set up and each nail hole on first annular coincide portion and each nail hole on the second annular coincide portion and be coaxial from top to bottom and arrange, each first identical gasket on the first annular coincide portion with each second annular coincide portion on each corresponding second identical portion The sheets are fastened together by staples.

Further, the first annular inosculating part and the second annular inosculating part are both of an inner ring and an outer ring staggered joint assembling structure.

Further, each adjacent first anastomosis gasket in the first annular anastomosis portion and each adjacent second anastomosis gasket in the second annular anastomosis portion are configured to generate micro-motion displacement so as to increase the freedom of motion between each adjacent gasket.

Further, first gasket that coincide is the integral type structure of arcuation zigzag, first gasket that coincide includes outer circular arc section and interior circular arc section that the staggered connection is in the same place, the first annular identical portion of closed form is constituteed in the inseparable amalgamation of a plurality of head and the tail of first gasket that coincide, the outer loop structure is constituteed in the concatenation of each outer circular arc section in the first annular identical portion and the inner ring structure is constituteed in the concatenation of each inner circular arc section to each outer circular arc section, and the concatenation seam of each outer circular arc section is the form of staggering in order to form inside and outside dicyclo staggered joint and assembles the structure with the structure of the identical portion of first annular, the structure of second annular identical portion is the same and the two corresponds the setting.

Further, first gasket that coincide includes split type outer circular arc section and interior circular arc section, the outer loop structure of the closed form is constituteed in the inseparable amalgamation of a plurality of outer circular arc section head and the tail, the inner loop structure of the closed form is constituteed in the inseparable amalgamation of a plurality of interior circular arc section head and the tail, inner loop structure hugs closely in the interior peripheral position department of outer loop structure, and the concatenation seam of each outer circular arc section is the form of staggering in order to form inside and outside dicyclo staggered joint and assembles the structure with the concatenation seam of each interior circular arc section, the structure of the anastomotic portion of second ring is the same with the structure of first annular anastomotic portion and the two corresponds the setting.

Further, the staple includes the nail back of the body, and both ends are equipped with left nail foot and right nail foot respectively about the nail back of the body, and the mounted position of the left nail foot and the right nail foot of staple on first annular portion of coincideing and second annular portion of coincideing is configured into: the first anastomosis gaskets and the second anastomosis gaskets which are correspondingly arranged in the first annular anastomosis portion and the second annular anastomosis portion from top to bottom can be locked together through the anastomosis nails, and meanwhile, the adjacent outer arc sections and/or inner arc sections in the first annular anastomosis portion and the second annular anastomosis portion can be locked together.

Furthermore, the outer circular arc first nail holes on the left end of each outer circular arc section in the first annular anastomosis part and the second annular anastomosis part are linked with the outer circular arc second nail holes on the right end of the other outer circular arc section adjacent to the left end of the first annular anastomosis part through anastomosis nails, and the outer circular arc second nail holes on the right end of the outer circular arc section are linked with the outer circular arc first nail holes on the left end of the other outer circular arc section adjacent to the right end of the outer circular arc section through the anastomosis nails, so that the outer circular arc sections form a closed outer ring structure which is linked together through a plurality of anastomosis nails; the inner circular arc first nail hole on the left end of each inner circular arc section in the first annular anastomosis portion and the second annular anastomosis portion is linked with the inner circular arc second nail hole on the right end of the other inner circular arc section adjacent to the left end of the first annular anastomosis portion through anastomosis nails, and the inner circular arc second nail hole on the right end of the inner circular arc section is linked with the inner circular arc first nail hole on the left end of the other inner circular arc section adjacent to the right end of the inner circular arc section through the anastomosis nails, so that the inner circular arc sections form a closed inner ring structure which is linked together through a plurality of anastomosis nails.

Furthermore, the first nail holes of the outer circular arcs in the first annular inosculating part and the second annular inosculating part are linked with the second nail holes of the inner circular arcs adjacent to the first nail holes through the inosculating nails, and the second nail holes of the outer circular arcs are linked with the first nail holes of the inner circular arcs adjacent to the second nail holes through the inosculating nails, so that a continuous W-shaped linkage structure is formed, and the outer circular arc sections and the inner circular arc sections form a closed outer ring structure and an inner ring structure which are linked together through a plurality of inosculating nails.

Furthermore, the acting surface of each first inosculating gasket and/or second inosculating gasket is provided with a flexible extrusion structure.

Furthermore, the action surface of each first inosculating gasket and/or second inosculating gasket is provided with a soft membrane layer capable of absorbing high polymer materials, a bulge cavity is formed between the soft membrane layer and the action surface of the corresponding first inosculating gasket or second inosculating gasket, and the bulge-shaped soft membrane layer forms a flexible extrusion structure.

The technical scheme has the following advantages or beneficial effects:

in the micro-motion anastomat, the first anastomosis gasket and the second anastomosis gasket which are corresponding up and down in each pair can be fastened together by the anastomosis nails so as to be used for clamping and inosculating the upper end cut and the lower end cut of the alimentary canal, and because the first annular inosculating part and the second annular inosculating part are assembled annular structures which are respectively formed by assembling and combining a plurality of first inosculating gaskets and second inosculating gaskets, while each adjacent first anastomosis gasket in the first annular anastomosis portion and each adjacent second anastomosis gasket in the second annular anastomosis portion are configured to generate micro-motion displacement, therefore, when the upper end incision and the lower end incision of the alimentary canal are anastomosed, a certain degree of freedom of movement can be generated between the adjacent gaskets to freely creep along with the alimentary canal, thereby being beneficial to promoting the healing of the anastomotic stoma and relieving the pain of the patient caused by the mutual dragging of the gaskets.

Drawings

Fig. 1 is a staple interlocking structure of a micro motion stapler according to a first embodiment of the present invention.

Fig. 2 is another staple interlocking structure of the micro-motion stapler according to the first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a first anastomosis spacer with an integrated structure according to a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a soft film layer according to a first embodiment of the invention.

Fig. 5 is a schematic view illustrating a combination state of the soft film layer and the first anastomosis spacer according to the first embodiment of the present invention.

Fig. 6 is a schematic view of an assembled structure of the first annular anastomosis portion, the second annular anastomosis portion and the staples according to the first embodiment of the present invention.

Fig. 7 is a schematic structural view of a staple according to a first embodiment of the present invention.

Fig. 8 is a structural diagram of a first split anastomosis spacer according to a second embodiment of the present invention.

Fig. 9 is a staple interlocking structure of the micro-motion stapler according to the second embodiment of the present invention.

Fig. 10 is another staple interlocking structure of the micro-motion stapler according to the second embodiment of the present invention.

Description of reference numerals:

1. the nail comprises a first annular anastomosis part, 2, a second annular anastomosis part, 3, anastomosis nails, 4, a soft membrane layer, 5, an upper end notch, 6, a lower end notch, 11, a first anastomosis gasket, 21, a second anastomosis gasket, 31, a nail back, 32, a left nail foot, 33, a right nail foot, 111, an outer circular arc section, 112, an inner circular arc section, 1111, an outer circular arc first nail hole, 1112, an outer circular arc second nail hole, 1121, an inner circular arc first nail hole, 1122 and an inner circular arc second nail hole.

Detailed Description

The invention is further described with reference to the following figures and examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example one

Referring to fig. 1 to 7, an embodiment of the present invention provides a micro-motion stapler, including two first and second annular anastomosis portions 1 and 2 disposed opposite to each other and a plurality of staples 3 for fastening the first and second annular anastomosis portions 1 and 2, wherein the first and second annular anastomosis portions 1 and 2 are formed by assembling a plurality of first anastomosis gaskets 11 and second anastomosis gaskets 21, respectively, and a micro-motion displacement can be generated between each adjacent first anastomosis gasket 11 in the first annular anastomosis portion 1 and between each adjacent second anastomosis gasket 21 in the second annular anastomosis portion 2 to increase a degree of freedom in motion between each adjacent gasket. It can be understood that, in clinical use of the micro-motion anastomat of the embodiment, each pair of the upper and lower corresponding first anastomosis gaskets 11 and second anastomosis gaskets 21 can be fastened together by the anastomosis nail 3 for clamping and anastomosing the upper end cut 5 and the lower end cut 6 of the digestive tract, and because the first annular anastomosis portion 1 and the second annular anastomosis portion 2 are assembled annular structures formed by assembling and combining a plurality of first anastomosis gaskets 11 and second anastomosis gaskets 21 respectively, and each adjacent first anastomosis gasket 11 in the first annular anastomosis portion 11 and each adjacent second anastomosis gasket 21 in the second annular anastomosis portion 2 are configured to be capable of generating micro-motion displacement, while the upper end cut 5 and the lower end cut 6 of the digestive tract are anastomosed, a certain degree of freedom of motion can be generated between each adjacent gaskets to freely wriggle along the digestive tract, thereby being beneficial to promoting the healing of the anastomotic stoma and relieving the pain of the patient caused by the mutual dragging of the gaskets.

Referring to fig. 1 to 6, in a preferred embodiment, the first annular engaging portion 1 and the second annular engaging portion 2 are both of an inner-outer double-ring staggered assembly structure. In this embodiment, preferably, the first anastomosis gasket 11 is substantially an arc-shaped zigzag integrated structure, the first anastomosis gasket 11 includes outer arc segments 111 and inner arc segments 112 that are connected in a staggered manner, a plurality of first anastomosis gaskets 11 are tightly spliced end to form a closed first annular anastomosis portion 1, each outer arc segment 111 in the first annular anastomosis portion 1 is spliced to form an outer ring structure, and each inner arc segment 112 is spliced to form an inner ring structure, the splicing seams of each outer arc segment 111 and the splicing seams of each inner arc segment 112 are staggered to form an inner and outer double-ring staggered seam splicing structure, and the structure of the second annular anastomosis portion 2 is the same as that of the first annular anastomosis portion 1 and the two are correspondingly arranged. It can be understood that, by configuring the first annular anastomosis portion 1 and the second annular anastomosis portion 2 into the inner and outer double-ring staggered-seam assembled structure, when in clinical use, the first annular anastomosis portion 1 and the second annular anastomosis portion 2 can clamp and anastomose the upper end cut 5 and the lower end cut 6 of the digestive tract through the plurality of anastomosis nails 3, and simultaneously, the splicing seams of the outer circular arc sections 111 and the splicing seams of the inner circular arc sections 112 in the first annular anastomosis portion 1 and the second annular anastomosis portion 2 are staggered, so that the first annular anastomosis portion 1 and the second annular anastomosis portion 2 of the assembled structure cannot be directly disconnected in one radial direction, therefore, the first annular anastomosis portion 1 and the second annular anastomosis portion 2 of the inner and outer double-ring staggered-seam assembled structure can provide enough freedom of movement to promote healing of the anastomosis along with peristalsis of the digestive tract, and can also effectively improve the anastomosis tightness of the upper end cut 5 and the lower end cut 6 to improve leakage or bleeding-stopping weakness of the anastomosis And (4) generating.

Referring to fig. 1 to 7, in a preferred embodiment, the outer circular arc section 111 has an outer circular arc first nail hole 1111 and an outer circular arc second nail hole 1112 at left and right ends thereof, respectively, for allowing the staples 3 to be fittingly inserted, the inner circular arc section 112 has an inner circular arc first nail hole 1121 and an inner circular arc second nail hole 1122 at left and right ends thereof, respectively, the first circular anastomosis portion 1 and the second circular anastomosis portion 2 are vertically disposed in a corresponding manner, and the nail holes of the first circular anastomosis portion 1 and the nail holes of the second circular anastomosis portion 2 are coaxially arranged in the vertical direction, and the first anastomosis gaskets 11 of the first circular anastomosis portion 1 are fastened to the corresponding second anastomosis gaskets 21 of the second circular anastomosis portion 2 by the staples 3. In one preferred embodiment, the staple 3 preferably includes a staple back 31, left and right ends of the staple back 31 are respectively provided with a left staple leg 32 and a right staple leg 33, and the mounting positions of the left staple leg 32 and the right staple leg 33 of the staple 3 on the first annular anastomosis portion 1 and the second annular anastomosis portion 2 are configured as follows: the first and

second anastomosis gaskets

11, 21 arranged in the first and second annular anastomosis portions 1, 2 in a vertically corresponding manner can be locked together by the anastomosis nail 3, and the adjacent outer circular arc sections 111 and/or inner circular arc sections 112 of the first and second annular anastomosis portions 1, 2 can be interlocked together. It can be understood that, in the present embodiment, while the first anastomosis gaskets 11 and the second anastomosis gaskets 21, which are correspondingly arranged up and down in the first annular anastomosis portion 1 and the second annular anastomosis portion 2, are locked together by the legs of the staples 3, by virtue of the connection action of the staple backs 31 of the staples 3, the adjacent outer arc sections 111 and the adjacent inner arc sections 112 in the first annular anastomosis portion 1 and the second annular anastomosis portion 2 may be interlocked together to form a "cable and boat" type interlocking structure (as shown in fig. 2), or the outer ring structure in the first annular anastomosis portion 1 and the second annular anastomosis portion 2 and the adjacent outer arc sections 111 and inner arc sections 112 in the inner ring structure are interlocked together to form a "cable and boat" type interlocking structure (as shown in fig. 1). Under the premise of good anastomosis effect, the first annular anastomosis portion 1 and the second annular anastomosis portion 2 of the chain structure of the 'cable-boat' type can ensure certain freedom of movement between the gaskets to ensure free peristalsis along with the digestive tract, and can also enable the gaskets to be linked to form a whole with micro performance to improve anastomosis strength, thereby avoiding overlarge freedom of movement between adjacent gaskets and being not beneficial to healing of an anastomosis opening. However, it will be understood by those skilled in the art that in other embodiments, the staples 3 may not span the two adjacent outer circular arc segments 111 or inner circular arc segments 112, and two staples 3 may be used to directly fasten the upper and lower corresponding zigzag first and

second anastomosis gaskets

11, 21 together.

Referring to fig. 2, in one preferred connection mode of the staples 3, the first outer circular arc nail hole 1111 at the left end of each outer circular arc segment 111 in the first annular stapling portion 1 and the second annular stapling portion 2 is interlocked with the second outer circular arc nail hole 1112 at the right end of the other outer circular arc segment 111 adjacent to the left end thereof through the staple 3, and the second outer circular arc nail hole 1112 at the right end of the outer circular arc segment 111 is interlocked with the first outer circular arc nail hole 1111 at the left end of the other outer circular arc segment 111 adjacent to the right end thereof through the staple 3, so that each outer circular arc segment 111 forms a closed outer ring structure which is interlocked together through a plurality of staples 3; the inner circular arc first nail hole 1121 on the left end of each inner circular arc section 112 in the first annular anastomosis portion 1 and the second annular anastomosis portion 2 is interlocked with the inner circular arc second nail hole 1122 on the right end of another inner circular arc section 112 adjacent to the left end thereof through the anastomosis nail 3, and the inner circular arc second nail hole 1122 on the right end of the inner circular arc section 112 is interlocked with the inner circular arc first nail hole 1121 on the left end of another inner circular arc section 112 adjacent to the right end thereof through the anastomosis nail 3, so that each inner circular arc section 112 forms a closed inner ring structure which is interlocked together through a plurality of anastomosis nails 3. Thus, each adjacent first anastomosis gasket 11 of the first annular anastomosis portion 1 and each second anastomosis gasket 21 of the second annular anastomosis portion 2 can be stably interlocked together to form a staggered assembly structure.

Referring to fig. 1, in another preferred connection manner of staples 3, each outer circular arc first staple hole 1111 and the adjacent (closest) inner circular arc second staple hole 1122 in the first annular stapling portion 1 and the second annular stapling portion 2 are interlocked by the staple 3, and each outer circular arc second staple hole 1112 and the adjacent (closest) inner circular arc first staple hole 1121 are interlocked by the staple 3, so as to form a continuous W-shaped interlocking structure, so that each outer circular arc section 111 and each inner circular arc section 112 form a closed outer ring structure and an inner ring structure which are interlocked together by a plurality of staples 3. It is understood that in the present embodiment, the staples 3 connected between the respective outer circular arc first staple holes 1111 and the inner circular arc second staple holes 1122 closest thereto in the first and second annular stapling portions 1 and 2 are interlocked to interlock the adjacent first or

second anastomosis gaskets

11 and 21 together, the staples 3 connected between the respective outer circular arc second nail holes 1112 and the inner circular arc first nail holes 1121 closest thereto are used for reinforcing the respective pairs of the first and

second anastomosis gaskets

11 and 21 up and down, in some embodiments, if the outer and inner arcuate segments of the first and

second anastomosis gaskets

11, 21 are of unitary zigzag configuration, it may not be necessary to provide staples 3 for reinforcing clamping anastomosis between each outer arcuate second staple hole 1112 and the closest inner arcuate first staple hole 1121.

Referring to fig. 6 and 7, in this embodiment, the left nail foot 32 and the right nail foot 33 of the anastomosis nail 3 are provided with anti-falling multi-stage barb structures, and each nail hole of the second anastomosis gasket 21 is fixed with an elastic plunger, so that the multi-stage barb structures on the left nail foot 32 and the right nail foot 33 can be adaptively inserted into the elastic plungers in each nail hole of the second anastomosis gasket 21 according to the actual thickness of the two layers of gastrointestinal tract end cuts, and further form a fastening connection effect on the first anastomosis gasket 11 and the second anastomosis gasket 21 corresponding up and down. In addition, the anastomosis nail 3 is integrally made of degradable magnesium alloy or zinc alloy, and biocompatible coatings such as a calcium-phosphorus coating, a hydroxyapatite coating, a bioactive glass coating and the like are sprayed on the surface of the anastomosis nail according to the actual anastomosis requirement, meanwhile, a coating with a different degradation rate or a different thickness from other areas can be coated at the middle position of the staple back 31 of the staple 3, so that the middle area of the staple back 31 can be degraded and failed firstly compared with the staple foot part, the remaining area maintains mechanical strength for a longer time than the middle area of the nail back 31, thereby leading the anastomosis nail 3 to be degraded step by step, not only reducing the total degradation amount in unit time and lightening the burden of the human body, after the nail back 31 is degraded, the 'cable' of the 'cable-boat connection' is broken, and each adjacent gasket is independently opened, so that the micromotion capability in the full space range is provided; the leg portions of the staples can still maintain the first anastomosis gasket 11 and the second anastomosis gasket 21 which are vertically corresponding to each other, and then, the legs of the staples are gradually broken to provide decoupling between the first anastomosis gasket 11 and the second anastomosis gasket 21 which are vertically corresponding to each other, so that the anastomosis member can be conveniently discharged from the body in a smaller single gasket form.

Referring to fig. 4 to 6, in a preferred embodiment, a flexible pressing structure is disposed on the active surface of each of the first anastomosis spacer 11 and/or the second anastomosis spacer 21. It can be understood that, when the first anastomosis gasket 11 and the corresponding second anastomosis gasket 21 are fastened by the anastomosis nail 3 to form a clamping anastomosis action on the upper end incision 5 and the lower end incision 6 of the digestive tract, a flexible extrusion force can be generated by the flexible extrusion structure to flexibly press the upper end incision 5 and the lower end incision 6 closed, so as to prevent the hard clamping anastomosis from possibly causing squeezing injury bleeding to the composition of the upper end incision 5 and the lower end incision 6, and further affecting the healing of the anastomosis.

Referring to fig. 4 to 6, in a preferred embodiment, a flexible film layer 4 capable of absorbing polymer materials is disposed on an active surface of each of the first anastomosis spacer 11 and/or the second anastomosis spacer 21, a bulge cavity is formed between the flexible film layer 4 and the active surface of the corresponding first anastomosis spacer 11 or the second anastomosis spacer 21, and the bulge-shaped flexible film layer 4 forms a flexible extrusion structure. In the present embodiment, the soft membrane layer 4 may be made of an absorbable polymer material such as PLA, PGA or PDO, and the soft membrane layer 4 may be adhered to the acting surface of the first anastomosis spacer 11 and/or the second anastomosis spacer 21 by using a bio-adhesive, and furthermore, it should be understood by those skilled in the art that the soft membrane layer 4 may be disposed on the acting surface of the first anastomosis spacer 11 or the second anastomosis spacer 21 alone, or the soft membrane layer 4 may be disposed on the acting surface of the first anastomosis spacer 11 or the second anastomosis spacer 21 at the same time, and the present invention is not limited to the specific embodiments disclosed in the present embodiment.

Referring to fig. 4 to 6, in a preferred embodiment, a micro-needle capillary array is formed on a surface of the soft membrane layer 4 through electrostatic spinning (which is the prior art and the specific structure and processing method thereof are not described herein), and one or more of hemostatic drugs, antibacterial drugs, or growth factor drugs are filled in the micro-needle capillary array, and the corresponding drugs are configured to be slowly released through the micro-needle capillary array on the soft membrane layer 4. However, it will be understood by those skilled in the art that other drugs for promoting wound healing may be filled in the microneedle capillary array in other embodiments, and are not limited to the specific embodiments disclosed in the present embodiments.

Referring to fig. 4 to 6, in a preferred embodiment, the active surface of each of the first anastomosis spacer 11 and/or the second anastomosis spacer 21 may also be provided with a shape memory polymer sponge layer containing an antibacterial agent, the shape memory polymer sponge layer forming a flexible compression structure capable of generating a flexible compression force. The shape memory polymer sponge may be a polyurethane sponge that may be adhered to the active surface of the first and/or

second anastomosis gaskets

11, 21 by a bioadhesive.

Example two

Referring to fig. 8 to 10, the first embodiment of the present invention is different from the first embodiment of the present invention only in that the first matching gasket 11 includes a split outer circular arc section 111 and an inner circular arc section 112, the plurality of outer circular arc sections 111 are tightly spliced end to form a closed outer ring structure, the plurality of inner circular arc sections 112 are tightly spliced end to form a closed inner ring structure, the inner ring structure is tightly attached to the inner circumference of the outer ring structure, the splicing seams of the outer circular arc sections 111 and the splicing seams of the inner circular arc sections 112 are staggered to form an inner and outer double-ring staggered-joint splicing structure, and the second annular matching portion 2 has the same structure as the first annular matching portion 1 and is disposed correspondingly to the first annular matching portion. In the present embodiment, each of the first anastomosis gaskets 11 and each of the second anastomosis gaskets 21 have an interlocking structure (as shown in fig. 9 and 10) similar to the connection manner of the two kinds of staples 3 in the first embodiment.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and these modifications or substitutions do not make the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention, so that all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Claims

1. A micro-motion anastomat is characterized in that: the nail comprises a first annular anastomosis portion (1) and a second annular anastomosis portion (2) which are arranged oppositely and a plurality of anastomosis nails (3) used for fastening the first annular anastomosis portion (1) and the second annular anastomosis portion (2), wherein the first annular anastomosis portion (1) and the second annular anastomosis portion (2) are formed by assembling and combining a plurality of first anastomosis gaskets (11) and second anastomosis gaskets (21) respectively, the first anastomosis gaskets (11) comprise outer arc sections (111) and inner arc sections (112), the left end and the right end of each outer arc section (111) are provided with first outer arc nail holes (1111) and second outer arc nail holes (1112) which can be used for inserting the anastomosis nails (3) in an adaptive mode respectively, the left end and the right end of each inner arc section (112) are provided with first inner arc nail holes (1121) and second arc nail holes (1122) which can be used for inserting the anastomosis nails (3) in an adaptive mode respectively, the first annular anastomosis portion (1) and the second annular anastomosis portion (2) are arranged correspondingly up and down, and the first annular anastomosis portion (1) is arranged on the first annular anastomosis portion (1) correspondingly The nail holes and the nail holes on the second annular inosculating part (2) are arranged coaxially up and down, and each first inosculating gasket (11) on the first annular inosculating part (1) and each corresponding second inosculating gasket (21) on the second annular inosculating part (2) are fixedly connected together through the inosculating nail (3).

2. The micro-motion stapler according to claim 1, wherein: the first annular inosculating part (1) and the second annular inosculating part (2) are both of an inner ring and an outer ring staggered joint assembling structure.

3. The fretting stapler according to claim 2, wherein each adjacent first anastomosis spacer (11) of the first annular anastomosis portion (1) and each adjacent second anastomosis spacer (21) of the second annular anastomosis portion (2) are configured to generate a fretting displacement for increasing the freedom of movement between each adjacent spacer.

4. The micro-motion stapler according to claim 3, wherein: first coincide gasket (11) are the integral type structure of arcuation zigzag, first coincide gasket (11) are including outer circular arc section (111) and interior circular arc section (112) that the staggered connection is in the same place, the first annular anastomosis portion (1) of closed form is constituteed in the inseparable amalgamation of a plurality of first coincide gasket (11) end to end, each outer circular arc section (111) in first annular anastomosis portion (1) is spliced and is constituteed outer ring structure and each interior circular arc section (112) concatenation and form the inner ring structure, and the concatenation seam of each outer circular arc section (111) is the form of staggering with the concatenation seam of each interior circular arc section (112) so that form inside and outside dicyclo staggered joint structure of assembling, the structure of second annular anastomosis portion (2) is the same with the structure of first annular anastomosis portion (1) and the two sets up correspondingly.

5. The micro-motion stapler according to claim 3, wherein: first gasket (11) coincide includes split type outer circular arc section (111) and interior circular arc section (112), the outer ring structure of the closed form is constituteed in the inseparable amalgamation of a plurality of outer circular arc section (111) head and the tail, the inner ring structure of the closed form is constituteed in the inseparable amalgamation of a plurality of interior circular arc section (112) head and the tail, inner ring structure hugs closely in the interior peripheral position department of outer ring structure, and the concatenation seam of each outer circular arc section (111) is the form of staggering in order to form inside and outside dicyclo staggered joint and assembles the structure with the structure of first annular portion of agreeing (1) and the two setting that corresponds of second annular portion of agreeing (2).

6. The micro-motion stapler according to claim 4 or 5, wherein: anastomotic nail (3) is equipped with left nail foot (32) and right nail foot (33) respectively including nail back (31), both ends about nail back (31), and the mounted position of the left nail foot (32) and the right nail foot (33) of anastomotic nail (3) on first annular portion of coincideing (1) and second annular portion of coincideing (2) is configured as: the first anastomosis gasket (11) and the second anastomosis gasket (21) which are correspondingly arranged in the first annular anastomosis portion (1) and the second annular anastomosis portion (2) up and down can be locked together through the anastomosis nail (3), and meanwhile, the adjacent outer circular arc sections (111) and/or inner circular arc sections (112) in the first annular anastomosis portion (1) and the second annular anastomosis portion (2) can be interlocked together.

7. The micro-motion stapler according to claim 6, wherein: the outer circular arc first nail holes (1111) on the left end of each outer circular arc section (111) in the first annular anastomosis part (1) and the second annular anastomosis part (2) are linked with the outer circular arc second nail holes (1112) on the right end of the other outer circular arc section (111) adjacent to the left end of the outer circular arc section through the anastomosis nails (3), and the outer circular arc second nail holes (1112) on the right end of the outer circular arc section (111) are linked with the outer circular arc first nail holes (1111) on the left end of the other outer circular arc section (111) adjacent to the right end of the outer circular arc section through the anastomosis nails (3), so that the outer circular arc sections (111) form a closed outer ring structure which is linked together through a plurality of anastomosis nails (3); an inner circular arc first nail hole (1121) on the left end of each inner circular arc section (112) in the first annular anastomosis part (1) and the second annular anastomosis part (2) is linked with an inner circular arc second nail hole (1122) on the right end of the other inner circular arc section (112) adjacent to the left end of the inner circular arc section through anastomosis nails (3), and the inner circular arc second nail hole (1122) on the right end of the inner circular arc section (112) is linked with an inner circular arc first nail hole (1121) on the left end of the other inner circular arc section (112) adjacent to the right end of the inner circular arc section through the anastomosis nails (3), so that the inner circular arc sections (112) form a closed inner ring structure which is linked together through a plurality of anastomosis nails (3).

8. The micro-motion stapler according to claim 6, wherein: each outer arc first nail hole (1111) in the first annular anastomosis part (1) and the second annular anastomosis part (2) is linked with the inner arc second nail hole (1122) adjacent to the outer arc first nail hole through the anastomosis nail (3), and each outer arc second nail hole (1112) is linked with the inner arc first nail hole (1121) adjacent to the outer arc second nail hole through the anastomosis nail (3), so that a continuous W-shaped linkage structure is formed, and each outer arc section (111) and each inner arc section (112) form a closed outer ring structure and an inner ring structure which are linked together through a plurality of anastomosis nails (3).

9. The micro-motion stapler according to any one of claims 1 to 5, wherein: the acting surface of each first inosculating gasket (11) and/or second inosculating gasket (21) is provided with a flexible extrusion structure.

10. The micro-motion stapler according to claim 9, wherein: the acting surface of each first inosculating gasket (11) and/or second inosculating gasket (21) is provided with a soft film layer (4) capable of absorbing high polymer materials, a bulge cavity is formed between the soft film layer (4) and the acting surface of the corresponding first inosculating gasket (11) or second inosculating gasket (21), and the bulge-shaped soft film layer (4) forms a flexible extrusion structure.