CN205758641U - A kind of tubular anastomat - Google Patents

Abstract

This utility model relates to a kind of tubular anastomat, belongs to medical sutures equipment technical field.Described anastomat includes guiding body and nail supporting base, the front end guiding body is provided with nail bin device, nail bin device includes being installed on the cartridge housing guided on body, the nail bin that some annular arrays are arranged it is provided with in cartridge housing, cartridge housing connects ejector pin set, it is provided with endless knife in ejector pin set, in guide pipe body, screw mandrel is installed, screw mandrel is connected with the axis of guide by plate, the axis of guide passes nail bin device and matches with nail supporting base, on guiding body, the one end away from nail bin device is rotatablely equipped with adjusting nut, and adjusting nut is connected with wire rod thread；Guiding one end of close adjusting nut on body and be provided with exciter, ejector pin set is controlled by exciter, and when coincideing, the end face of cartridge housing leans with the end face of nail supporting base, and the end face of cartridge housing is provided with the annular slope of an ecto-entad depression.Described anastomat solves the technical problem of anastomotic stenosis after surgery, can be widely applied to hold in end suture operation.

Description

A kind of tubular anastomat

Technical field

This utility model relates to a kind of medical sutures equipment, relates more particularly to a kind of tubular anastomat, belongs to Medical treatment device Tool technical field.

Background technology

Anastomat is the equipment substituting manual suture medically used, and its main operational principle is to utilize titanium to follow closely tissue Carry out detachment or coincide.And according to the difference of the scope of application, anastomat can be divided mainly into skin stapler, digestive tract (esophagus, stomach Intestinal etc.) circular staplers, rectum coinciding equipment, blood vessel anastomat, hernia anastomat, lung Endo-GIA etc.；Another aspect, root Cutting mode according to anastomat is different, can be divided into again linear cutting anastomat and endless knife Endo-GIA etc..

In many anastomats, tubular anastomat is a kind of conventional robotic suturing device, belongs to endless knife Endo-GIA. The type anastomat is when operation, and nail bin hole, built with anastomosis staple, utilizes apparatus firing components to be below pushed out to by nail to nail At the nail hole that seat is corresponding, anastomosis staple bends to " B " shape along the shape in nail hole under force, thus can be (similar by tissue Paper in stapler system) sew up.

In actual application, when performing the operation with tubular anastomat, anastomotic stenosis after surgery is always surgical stapling hands One of important complication of art, this is owing to the feature of tubular anastomat causes, and as shown in accompanying drawing 1 of the present invention, works as tissue When being extruded by nail supporting base 1 plane and cartridge housing 2 end face, organize and extend to surrounding so that Post operation is stapled device endless knife 3 and excises Tissue diameter less than endless knife 3 diameter (tissue from impaction state discharge after understand back to anastomotic stoma), this is also postoperative kiss Close the stenostomatous most important origin cause of formation.

Being based on so considering, the narrow always tubular anastomat field how reducing postoperative anastomotic stoma is pursued Most important technical parameter and improve starting point.

Another aspect, after coincideing, it usually needs endless knife straight line shock, to be cut off by tissue, then takes out guide post And nail supporting base.But, some is organized in endless knife when cutting off, and is not kept completely separate, and the cut-out being i.e. commonly called as is thorough, from And make when taking guide post and nail supporting base, and meeting tractive anastomotic position, cause anastomotic position to tear, cause operative failure.So Accident, the most relatively conventional in anastomat, this is also the difficult problem always perplexing numerous technical staff.

Based on above-mentioned many considerations and the state of the art, for developing a kind of new tubular anastomat, to scheme to change tradition Version, and provide the operational approach of this anastomat, this not only has urgent researching value, it may have good warp Ji benefit and commercial Application potentiality, this power place that this utility model is accomplished just and basis are leaned on.

Utility model content

In order to overcome the defect of prior art as indicated above, and research and develop a kind of novel anastomat, the present inventor This is conducted in-depth research, after having paid a large amount of creative work, thus completes this utility model.

Specifically, this utility model relates generally to a kind of tubular anastomat, to solve the technology such as anastomotic stenosis after surgery Problem.

For solving above-mentioned technical problem, the technical solution of the utility model is: provide a kind of tubular anastomat, described tubular Anastomat includes guiding body and nail supporting base, and the front end of described guiding body is provided with nail bin device, and described nail bin device includes being installed on Cartridge housing on described guiding body, is provided with the nail bin that some annular arrays are arranged in described cartridge housing, described cartridge housing connects Ejector pin set, is provided with endless knife in described ejector pin set, is provided with screw mandrel in described guide pipe body, and described screw mandrel is fixing with plate even Connecing, described plate is fixing with the axis of guide to be connected, and the described axis of guide passes described nail bin device and matches with described nail supporting base, institute State the one end guided on body away from described nail bin device and be rotatablely equipped with adjusting nut, described adjusting nut and described wire rod thread Connect；Be provided with exciter near one end of described adjusting nut on described guiding body, described ejector pin set be controlled by described in excite Device, when coincideing, the end face of described cartridge housing leans with the end face of described nail supporting base, and the end face of described cartridge housing is provided with one by outward The annular slope caved inward.

In described tubular anastomat of the present utility model, improving as one, described nail supporting base includes pedestal, described seat One end face of body is provided with the block of spherical crown shape, and the other end of described pedestal is provided with the card suitable with the described axis of guide Spring set, is provided with the Clip Reed of some clampings described axis of guide end in described jump ring set.

In described tubular anastomat of the present utility model, as further improving, around described card on described pedestal Spring collar-shaped array has some holes of following closely one to one with described nail bin, and the cross sectional shape in described nail hole is " W " of rounding off Shape.

In described tubular anastomat of the present utility model, as further improving, described ejector pin puts and is provided with axially The gathering sill extended, described cartridge housing is provided with guide protrusions, and described guide protrusions is suitable with described gathering sill.

In described tubular anastomat of the present utility model, as further improving, the outer surface of described ejector pin set sets Having cone boss, be slidably fitted with a nail pushing plate in described guide pipe body, described nail pushing plate one end has and described cone boss Suitable conical socket, is provided with ejector pin spring, described ejector pin bullet between the other end and the described guiding body of described nail pushing plate Spring is set in described ejector pin and puts, and described nail pushing plate is connected with described exciter.

In described tubular anastomat of the present utility model, as further improving, described exciter includes hinged peace It is loaded on the handle on described guiding body, in described guide pipe body, is provided with a pointer drag hook being connected with described handle, described finger Pin drag hook is set on described screw mandrel, and described pointer drag hook is connected with described nail pushing plate by bracing wire.

In described tubular anastomat of the present utility model, as further improving, described pointer drag hook and regulation spiral shell Being provided with compression spring between mother, described compression spring is set on described screw mandrel.

In described tubular anastomat of the present utility model, improve as one, away from the one of blade in described endless knife End is provided with guiding surface, and it is protruding that the inner surface of described ejector pin set is provided with a push broach, and described push broach projection has oblique with described guiding The corners that face is suitable.

In described tubular anastomat of the present utility model, as further improving, under described guiding surface effect, Described endless knife produces rotation around axis during advancing.

As it has been described above, this utility model provides a kind of tubular anastomat, when this anastomat have employed technique scheme And/or after comprising above-mentioned technical characteristic, thus the technique effect of many excellences can be obtained, such as:

(1) being provided with the annular slope of an ecto-entad depression due to the end face of cartridge housing, two be sewn are organized in squeezed Move to cartridge housing end-surface member inner space during pressure so that Post operation is stapled the tissue diameter of device endless knife excision more than ring The diameter of shape cutter, efficiently solves anastomotic stricture problem.

(2) cross sectional shape cheated due to nail is " W " shape of rounding off, and exciter excites ejector pin set by coincideing in nail bin Nail is released, and anastomosis staple encounters flexural deformation on the inwall in nail hole, finally to form " B " structure so that anastomotic stoma completely and also shape Shape is homogeneous, is more beneficial for the healing at corrective surgery position.

(3) being provided with axially extended gathering sill owing to ejector pin puts, cartridge housing is provided with guide protrusions, can either play and lead To effect, prevent cartridge housing from offseting, it is ensured that nail bin is corresponding with the position in nail hole, can play again position-limiting action.

(4) due in endless knife one end away from blade be provided with guiding surface, it is convex that the inner surface of ejector pin set is provided with a push broach Rising, push broach projection has the corners suitable with guiding surface, under guiding surface effect, around axle during endless knife advance Line produces and rotates so that endless knife can not only be axially cutting, additionally it is possible to rotate cutting, it is possible to thoroughly cut by tissue during operation Disconnected so that the tissue at operation two ends is kept completely separate.

As can be seen here, tubular anastomat of the present utility model can obtain above-mentioned many technique effects, thus solves existing Many defects and problem present in technology so that patient can preferably rehabilitation and wound healing, have at medical field There are good application prospect and industrial production potential.

Another aspect, this utility model further relates to the operational approach of a kind of above-mentioned tubular anastomat, and described method includes Following steps:

S1: pull-up handle, strains bracing wire, and ejector pin spring-compressed, ejector pin set are linearly slided backward, by annular by nail pushing plate Cutter is arranged in ejector pin set, then locks insurance；

S2: be directed to axle through tissue to be anastomosed；

S3: fix one piece of same sex tissue slice on nail supporting base；

S4: by nail supporting base assembly from far-end through tissue；

S5: the docking axis of guide and the jump ring set of nail supporting base；

S6: turn clockwise adjusting nut, gradually furthers nail supporting base to the end face of cartridge housing, now organizes compacted；

S7: open insurance, excites handle, is now cut through by endless knife in the middle of tissue, and the edge of otch is staggered two The anastomosis staple of the identical molding of circle；

S8: taking out tubular anastomat, stitching completes.

This operational approach has good adaptability, it is possible to accurately operate described tubular anastomat, so that wound It is more easy to healing, there is good using value in the medical field.

Accompanying drawing explanation

Fig. 1 is nail supporting base in the anastomat of prior art and nail bin device coincide state diagram；

Fig. 2 is the appearance schematic diagram of the anastomat of this utility model embodiment；

Fig. 3 be this utility model embodiment anastomat in the annexation figure of parts in guide pipe body；

Fig. 4 be this utility model embodiment anastomat in nail supporting base and nail bin device coincide state diagram；

Fig. 5 is the partial enlargement structural representation of A in Fig. 4；

Fig. 6 be this utility model embodiment anastomat in the axis of guide pass the state diagram of nail bin device；

Fig. 7 is the top view of Fig. 6；

Fig. 8 be this utility model embodiment anastomat in the structural representation of nail supporting base；

Fig. 9 be this utility model embodiment anastomat in anastomosis staple anastomosis procedures deformation principle figure；

Figure 10 be this utility model embodiment anastomat in the structural representation of nail bin device；

Wherein, in Fig. 1 to Figure 10, each number designation refers to following concrete meaning, element and/or parts respectively.

In figure: 1, nail supporting base, 2, cartridge housing: " cartridge housing " of the prior art, 3, endless knife: " ring of the prior art Shape cutter ", 4, guide body, 5, nail supporting base, 501, block, 502, pedestal, 503, Clip Reed, 504, jump ring set, 505, nail hole, 6, Handle, 7, insurance, 8, adjusting nut, 9, nail bin device, 901, cartridge housing: " cartridge housing " in the present invention, 902, annular slope, 903, ejector pin set, 904, gathering sill, 905, guide protrusions, 906, push broach protruding, 907, nail pushing plate, 908, ejector pin spring, 10, Screw mandrel, 11, compression spring, 12, pointer drag hook, 13, plate, 14, the axis of guide, 15, the endless knife (" annular in the present invention Cutter "), 1501, guiding surface, 16, anastomosis staple.

Detailed description of the invention

With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.But the purposes of these exemplary embodiments Only it is used for purpose enumerating this utility model, not real protection scope of the present utility model is constituted any type of any limit Fixed, more non-protection domain of the present utility model is confined to this.

As Fig. 2, Fig. 3, Fig. 4 and Fig. 5 jointly shown in, this utility model is provided a kind of tubular anastomat, and it includes leading To body 4 and nail supporting base 5, the front end guiding body 4 is provided with nail bin device 9, and nail bin device 9 includes being installed on the nail guided on body 4 Storehouse shell 901, is provided with the nail bin that some annular arrays are arranged in cartridge housing 901, nail bin is built with anastomosis staple 16, and cartridge housing 901 is even Connect ejector pin set 903, in ejector pin set 903, be provided with endless knife 15, screw mandrel 10, screw mandrel 10 and plate 13 are installed in guiding body 4 Fixing connection, the most elastic steel of plate 13 are made, and plate 13 is fixing with the axis of guide 14 to be connected, the axis of guide 14 Top is provided with annular bayonet socket, and the axis of guide 14 passes nail bin device 9 and matches with nail supporting base 5, guides on body 4 away from nail bin device 9 One end be rotatablely equipped with adjusting nut 8, adjusting nut 8 is threadeded with screw mandrel 10；Guide on body 4 near adjusting nut 8 One end be provided with exciter, ejector pin set 903 is controlled by exciter, when coincideing, the end face of the end face of cartridge housing 901 and nail supporting base 5 Leaning, the end face of cartridge housing 901 is provided with the annular slope 902 of an ecto-entad depression, when annular slope 902 changes extruding The bearing of trend of tissue, thus the size of anastomotic stoma when changing cut-out.

As Fig. 6, Fig. 7, Fig. 8 and Fig. 9 jointly shown in, nail supporting base 5 includes pedestal 502, and an end face of pedestal 502 is provided with The block 501 of spherical crown shape, the other end of pedestal 502 is provided with the jump ring set 504 suitable with the axis of guide 14, jump ring set 504 It is perpendicular to the end face of pedestal 502, in jump ring set 504, is provided with the Clip Reed 503 of the some clamping axis of guide 14 ends, Clip Reed 503 Bend towards the inner side of jump ring set 504, and be provided with multiple Clip Reed 503, in the axis of guide 14 is inserted into jump ring set 504, jump ring When sheet 503 buckles into the annular bayonet socket of the axis of guide 14 end, the axis of guide 14 has been combined with jump ring set 504.

Overlap 504 circular arraies around jump ring on pedestal 502 to show and some follow closely hole 505 one to one with nail bin, nail hole 505 Cross sectional shape is " W " shape of rounding off, and exciter excites ejector pin set 903 to be released by the anastomosis staple 16 in nail bin, anastomosis staple 16 Encounter flexural deformation on the inwall in nail hole 505, finally to form " B " structure, by the engaging tissue at two ends together.

As shown in Figure 10, in order to ensure that ejector pin set 903 is linearly released when the device that is stimulated excites, ejector pin set 903 sets Having axially extended gathering sill 904, cartridge housing 901 is provided with guide protrusions 905, and guide protrusions 905 is fitted with gathering sill 904 phase Joining, generally arrange at least two gathering sills 904 on ejector pin set 903, equally, on cartridge housing 901, relevant position arranges guiding Protruding 905, guide protrusions 905 is inserted in gathering sill 904, can either play guide effect, prevents cartridge housing 901 from offseting, Ensure that nail bin is corresponding with the position in nail hole 505, position-limiting action can be played again.

The outer surface of ejector pin set 903 is provided with cone boss, is slidably fitted with a nail pushing plate 907, nail pushing plate in guiding body 4 907 one end have the conical socket suitable with cone boss, be provided with and push away between the other end and the guiding body 4 of nail pushing plate 907 Langrage spring 908, ejector pin spring 908 is set on ejector pin set 903, and nail pushing plate 907 is connected with exciter, compresses ejector pin spring 908, apply pretightning force, to be excited after can release rapidly nail pushing plate 907 drive ejector pin set 903 injection anastomosis staples 16.Existing Exciter kind has a lot, here, inventor employs a kind of simpler and service-strong structure, concrete scheme is such as Under: exciter includes the hinged handle 6 being installed on and guiding on body 4, is provided with a pointer being connected with handle 6 in guiding body 4 Drag hook 12, pointer drag hook 12 is set on screw mandrel 10, and pointer drag hook 12 is connected with nail pushing plate 907 by bracing wire, pointer drag hook Being provided with compression spring 11 between 12 and adjusting nut 8, compression spring 11 is set on screw mandrel 10, pull-up handle 6, and bracing wire is strained, Ejector pin spring 908 is compressed by nail pushing plate 907, and pointer drag hook 12 compresses compression spring 11 simultaneously, then the insurance 7 of handle 6 is locked Living, when needing to excite, open insurance 7, press handle 6, compression spring 11 is upspring pointer drag hook 12, and bracing wire is unclamped, ejector pin spring 908 promote nail pushing plate 907, drive ejector pin set 903 slip, are penetrated by anastomosis staple 16.

As another inventive point of the present invention, in endless knife 15, the one end away from blade is provided with guiding surface 1501, pushes away The inner surface of nail set 903 is provided with a push broach projection 906, and push broach projection 906 has the corners suitable with guiding surface 1501, Under guiding surface 1501 acts on, endless knife 15 produces rotation around axis during advancing so that endless knife 15 can not only axle To cutting, additionally it is possible to rotate cutting, it is possible to tissue during operation is thoroughly cut off so that the tissue at operation two ends is kept completely separate. Compared with traditional the most axially cutting scheme of endless knife 15, the endless knife 15 of this programme achieves axially cutting and circumferential Cut two kinds of actions, cut off more thorough.

Traditional tubular anastomat is when implementing to coincide, and due to the nail of nail supporting base 5, to cheat 505 shallower, when anastomosis staple 16 penetrates Time, impact nail supporting base 5 just occurs bending and deformation sometimes, and the tissue staple not being sewn by needs is together, causes operation Sew up unsuccessfully.For this problem, inventor is through further investigation and test of many times, it was also proposed that solve the side of this technical problem Case, specifically, after being installed by all parts of the present invention, is implementing operation consent, is first fixing one piece on nail supporting base 5 Same sex tissue slice, this tissue slice and patient need the operative site sewed up can not produce the reaction that repels each other, and this needs priorization Test patient sign parameter, and also require that the area of this tissue slice is more than the face area of pedestal 502, and thickness was difficult to Thickness, was not easy to thin, can select suitable thickness according to experience, jump ring is overlapped 504 when those skilled in the art implement Through this tissue slice so that pedestal 502 end face leans with the end face of this tissue slice, then by nail supporting base 5 with this group Knitting cuts into slices to pass again is sewn tissue, which adds the thickness being sewn tissue, when anastomosis staple 16 penetrates, it is easier to penetrate It is sewn tissue, then flexural deformation, this tissue slice is nailed together together with being sewn tissue.So operation also has one Benefit, it is simply that after adding the thickness being sewn tissue, endless knife 15, when cutting off, is also more prone to completely cut through be sewn Tissue, substantially increases match result.

As it has been described above, this utility model provides a kind of tubular anastomat, it is by the novel designs of multiple structures, thus Good technique effect can be obtained.

The concrete operation method of described tubular anastomat of the present utility model can be as follows:

S1: pull-up handle 6, strains bracing wire, and ejector pin spring 908 is compressed by nail pushing plate 907, and ejector pin set 903 is the most backward Slide, endless knife 15 is arranged in ejector pin set 903, then locking insurance 7；

S2: be directed to axle 14 through tissue to be anastomosed；

S3: fix one piece of same sex tissue slice on nail supporting base 5；

S4: by nail supporting base 5 assembly from far-end through tissue；

The jump ring set 504 of S5: the docking axis of guide 14 and nail supporting base 5；

S6: turn clockwise adjusting nut 8, gradually furthers nail supporting base 5 to the end face of cartridge housing 901, now organizes quilt Compress；

S7: open insurance 7, excites handle 6, is now cut through by endless knife 15 in the middle of tissue, and the edge of otch is staggered Two circles are had to coincide the anastomosis staple 16 of molding；

S8: taking out tubular anastomat, stitching completes.

When using described tubular anastomat of the present utility model and during aforesaid operations method, two be sewn be organized in by Move to cartridge housing 901 end-surface member inner space during extruding so that the tissue that Post operation is stapled device endless knife 15 excision is straight Footpath, more than the diameter of endless knife 15, efficiently solves anastomotic stricture problem, meanwhile, also add the thickness being sewn tissue Degree, when anastomosis staple 16 penetrates, it is easier to penetrate and be sewn tissue, then flexural deformation, by this tissue slice and be sewn tissue Being nailed together together, endless knife 15 is easier to realization and completely cuts through, thus significantly improves the success rate of operation stitching.

In sum, this utility model provides a kind of novel tubular anastomat and operational approach thereof, described tubular kiss Clutch is designed and operational approach by unique structure, thus can solve the anastomotic stenosis after surgery generally existed in prior art Etc. problem, thus it is with a wide range of applications in clinical treatment and industrial production potential.

Should be appreciated that the purposes of these embodiments is merely to illustrate this utility model and is not intended to limit this utility model Protection domain.Additionally, it will also be appreciated that after having read technology contents of the present utility model, those skilled in the art are permissible This utility model makes various change, amendment and/or modification, and all these equivalent form of value falls within right appended by the application equally Within the protection domain that claim is limited.

Claims (9)

1. a tubular anastomat, it is characterised in that: it includes guiding body and nail supporting base, and the front end of described guiding body is provided with Nail bin device, described nail bin device includes the cartridge housing being installed on described guiding body, is provided with some circular arraies in described cartridge housing The nail bin that row are arranged, described cartridge housing connects ejector pin set, is provided with endless knife, is provided with in described guide pipe body in described ejector pin set Screw mandrel, described screw mandrel and a plate are fixing to be connected, and described plate is fixing with the axis of guide to be connected, and the described axis of guide passes described Nail bin device and matching with described nail supporting base, on described guiding body, the one end away from described nail bin device is rotatablely equipped with regulation spiral shell Mother, described adjusting nut is connected with described wire rod thread, and on described guiding body, the one end near described adjusting nut is provided with sharp Sending out device, described ejector pin set is controlled by described exciter；When coincideing, the end face of described cartridge housing offsets with the end face of described nail supporting base Leaning on, the end face of described cartridge housing is provided with the annular slope of an ecto-entad depression.

2. a kind of tubular anastomat as claimed in claim 1, it is characterised in that: described nail supporting base includes pedestal, described pedestal An end face be provided with the block of spherical crown shape, the other end of described pedestal is provided with the jump ring suitable with the described axis of guide Set, is provided with the Clip Reed of some clampings described axis of guide end in described jump ring set.

3. a kind of tubular anastomat as claimed in claim 2, it is characterised in that: around described jump ring collar-shaped on described pedestal Array has some holes of following closely one to one with described nail bin, and the cross sectional shape in described nail hole is " W " shape of rounding off.

4. a kind of tubular anastomat as claimed in claim 1, it is characterised in that: described ejector pin puts and is provided with axially extended leading To groove, described cartridge housing is provided with guide protrusions, and described guide protrusions is suitable with described gathering sill.

5. a kind of tubular anastomat as claimed in claim 1, it is characterised in that: it is convex that the outer surface of described ejector pin set is provided with taper Platform, is slidably fitted with a nail pushing plate in described guide pipe body, described nail pushing plate one end has suitable with described cone boss Conical socket, is provided with ejector pin spring between the other end and the described guiding body of described nail pushing plate, and described ejector pin spring housing is loaded on Described ejector pin puts, and described nail pushing plate is connected with described exciter.

6. a kind of tubular anastomat as claimed in claim 1, it is characterised in that: described exciter includes described in hinged being installed on Guide the handle on body, in described guide pipe body, be provided with a pointer drag hook being connected with described handle, described pointer drag hook set Being loaded on described screw mandrel, described pointer drag hook is connected with described nail pushing plate by bracing wire.

7. a kind of tubular anastomat as claimed in claim 6, it is characterised in that: set between described pointer drag hook and adjusting nut Compression spring, described compression spring is had to be set on described screw mandrel.

8. a kind of tubular anastomat as claimed in claim 1, it is characterised in that: in described endless knife, the one end away from blade sets Having guiding surface, it is protruding that the inner surface of described ejector pin set is provided with a push broach, and described push broach projection has and described guiding surface phase Adaptive corners.

9. a kind of tubular anastomat as claimed in claim 8, it is characterised in that: under described guiding surface effect, described ring Shape cutter produces rotation around axis during advancing.