CN108095789A - A kind of degradable anastomotic component and the stapler with the degradable anastomotic component - Google Patents
A kind of degradable anastomotic component and the stapler with the degradable anastomotic component Download PDFInfo
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- CN108095789A CN108095789A CN201810109162.7A CN201810109162A CN108095789A CN 108095789 A CN108095789 A CN 108095789A CN 201810109162 A CN201810109162 A CN 201810109162A CN 108095789 A CN108095789 A CN 108095789A
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- degradable
- anastomotic component
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00004—(bio)absorbable, (bio)resorbable, resorptive
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Abstract
The present invention proposes a kind of degradable anastomotic component and the stapler with the degradable anastomotic component, the degradable anastomotic component coincide to tubular alimentary canal for being arranged between the resist-nailed seat of stapler and the puncture needle chamber opposite with the resist-nailed seat, and the degradable anastomotic component is made of degradable identical seat piece and degradable identical fastener.The degradable anastomotic component of the present invention and the stapler with the degradable anastomotic component, employ the identical fastener of degradation material, identical area is very much not easy to fall off, and nail can be punctured using auxiliary identical while and form puncturing hole, identical fastener need not be done especially tiny, the intensity of identical fastener is improved, improves identical reliability.Simultaneously because the fastener that coincide made of degradation material need not be made especially tiny, required structure can be designed to according to healing time, disintegration time is controllable, improves the flexibility ratio of structure design.
Description
Technical field
The present invention relates to for the tubular tissue in human body alimentary canal, the surgical instrument such as gastrointestinal tract, especially one
The degradable anastomotic component of kind and the stapler with the degradable anastomotic component.
Background technology
Stapler is the medical instrument that traditional-handwork suture is substituted in surgical operation, wherein, tube type anastomat extensively should
In human body alimentary canal operation, such as it is applied to the end end such as oesophagus in alimentary canal, Stomach duodenum, small intestine or end kiss
It closes in operation.It is especially short or in the case that the visual field is not known in operated interface portion bit comparison, just with greater need for using coincideing
Device realizes the suture of wound.In the surgical operations such as reconstruction of digestive tract, wound is carried out using titanium nail stapler and is coincide, is had
Have the advantages that easy to operate, suture is rapid, few intercurrent disease, and such instrument can shorten operating time, improve procedure efficiency.
The structure diagram of existing digestive tract stapler is shown in Fig. 1-3, including a main body 1, the front end of main body 1
Resist-nailed seat 2 with a spherical crown shape, the planar section 21 of resist-nailed seat 2 correspond to identical nail bin 3a, and the rear end of main body 1 has percussion
Adjusting knob 5a of handle 4a and handle etc..The main operational principle of the existing stapler is similar to stapler, i.e. this coincide
The percussion implantation into the tissue for needing to suture is two rows of mutually by the firing lock (not shown) at the nail bin 3a rear portions that coincide for device
Anastomosis staple staggeredly carries out double intersection stapling to tissue, and the shape of anastomosis staple is similar with staple, and after percussion, anastomosis staple exists
It deforms between firing lock and resist-nailed seat 2, B shapes is equally bent to similar to staple, so as to which the tissues such as gastrointestinal tract be stitched
It is combined.The anastomosis staple of the digestive tract stapler clinically used at present is that inert metal NiTi tantalum etc. is used to be made, nail
It is combined after knitting, lasting residue in vivo, is influenced the inspections such as postoperative X ray, CT, MRI by titanium alloy anastomosis staple, easily causes certain journey
The postoperative complications such as the previous anastomotic scar of degree, stenosis of bowel obstruction.
In order to overcome the problems referred above, a kind of tubular degradable identical part of tissue of human body alimentary canal is disclosed in 1742684 A of CN
And its stapler, the main of existing stapler is theed improvement is that：Resist-nailed seat has been substituted for degradation material and has been made by it
Integrally formed identical seat piece, anastomosis staple has been substituted for binding block made of degradation material.Its operation principle is to pass through
Multiple binding blocks are fired away the tissue sutured through needs by firing lock, afterwards each binding block and integrally formed kiss
The hole closed in seat piece is fitted close, it would be desirable to which the tissue of suture is clamped between binding block and identical seat piece；It finally takes out and coincide
Device all stays in binding block and identical seat piece in human body by its natural degradation.
Although above-mentioned employ degradation material metal anastomotic nail to be overcome to be retained in lacking for inside of human body in the prior art
It falls into, but since the hole in binding block and identical seat piece being fitted close, fastens block header in circle obtuse, through needing to stitch
Larger wound can be formed during the tissue of conjunction, and wound edge can be in irregular tear state, and binding block tail
For the pedestal at end into thin stick-like, this causes the pedestal of binding block tail end to be easy to slip from the wound of tear state, causes to suture
Failure.In addition, the resist-nailed seat of existing stapler is substituted in above-mentioned binding block of the prior art, and need when operation
In-site installation changes the operating method of original titanium nail tube type anastomat into stapler, and operation can be brought to clinician
On it is inadaptable and increase learning difficulty.And using anastomosis staple made of degradation plastic, it is limited to puncture ability, it is impossible to have
Effect breakdown tissue, can not realize identical.
In view of the defects of above-mentioned prior art, this patent applicant proposed a kind of improved stapler, patent is public
The number of opening is 103230289 A of CN, and the stapler of the prior art includes anastomosis staple made of multiple degradation materials, with coincideing
It is the head of a nail made of quantity is identical therewith multiple degradation materials to follow closely matched, and anastomosis staple is arranged at circular anastomosis staple
Into the nail hole on the anchor ring of resist-nailed seat, the head of a nail is arranged in the cap aperture of the planar section of resist-nailed seat storehouse surface.The prior art
Stapler uses degradable anastomosis staple and the head of a nail, will not leave metalwork in patient's body, while anastomosis staple tip is tiny, right
Tissue damage is small, and the fit structure of the head of a nail and anastomosis staple is simply compact, will not result in blockage to gastrointestinal tract.
However, the above-mentioned prior art that applicant proposes is in actual use, since anastomosis staple can by nonmetallic
Degradable material is made, and in order to improve the puncture ability of anastomosis staple, anastomosis staple can only be made to very tall and thin, although causing it that can hit
It wears tissue and realizes and coincide, but since anastomosis area is too small, the alimentary canal having coincide easily departs from anastomosis staple and the head of a nail after surgery
Clamping, cause operative failure.And since anastomosis staple needs to be made, relatively thin is smaller, and intensity is too small, easily collapses in advance
Solution, can not provide reliable match result before required healing time.Further, since anastomosis staple made of degradation material
Too many with the quantity of identical cap, installation and holding are all cumbersome, are easily lost, and may expend suing and labouring the time for preciousness, together
When operational inconvenience can be also brought to clinician.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of degradable anastomotic component and with this degradable identical group
The stapler of part, the problem of being formerly mentioned is reduced or avoided.
In order to solve the above technical problems, the present invention proposes a kind of degradable anastomotic component, for being arranged on stapler
It coincide between resist-nailed seat and the puncture needle chamber opposite with the resist-nailed seat to tubular alimentary canal, the degradable anastomotic component
It is made of degradable identical seat piece and degradable identical fastener, degradation material used by the degradable anastomotic component
Including glycolide, lactide, Lanthanum Isopropoxide, caprolactone, trimethylene carbonate homopolymer or its copolymer, wherein,
The circular ring shape that the identical seat piece is structure as a whole, have towards the first face of the resist-nailed seat and with first face phase
To the second face towards the identical fastener；The identical seat piece has positioned at the first torus of periphery and positioned at inner circumferential
Second torus is formed with the easy fault trough of annular positioned at first face, institute between first torus and the second torus
It states and circumferential uniformly distributed multiple block button holes is formed on the first torus；The circular ring shape that the identical fastener is structure as a whole, tool
Have towards it is described puncture needle chamber the 3rd face and with the opposite fourth face towards the identical seat piece in the 3rd face；It is described
The internal diameter of identical fastener is more than the outer diameter of the annular easily fault trough, is formd in the inside diameter ranges of the identical fastener for institute
The second torus and annular first central passage that easily fault trough and the resist-nailed seat pass through are stated, is formed on the fourth face
Have it is circumferential it is uniformly distributed can buckle corresponding with the block button hole buckle pin.
Preferably, the one side of root towards first central passage of each buckle pin is respectively provided with that there are one for institute
State the puncturing hole that the puncture needle for puncturing and being set on needle chamber passes through.
Preferably, the outer ledge of first torus is formed with the protection fence extended towards the resist-nailed seat, institute
The side for stating protection fence is formed with multiple grooves along annular.
Preferably, first torus is circumferentially evenly distributed with multiple first convex-concave structures on second face；
The identical fastener is circumferentially evenly distributed with multiple second convex-concave structures on the fourth face, first convex-concave structure and
The position of second convex-concave structure is staggeredly arranged, and negative and positive can be formed identical when and fastened.
Preferably, the outer diameter of the annular easily fault trough is more than the outer diameter of the resist-nailed seat, and annular easily outer diameter of fault trough etc.
In the outer diameter of the annular cutter set on the puncture needle chamber.
Preferably, the annular easily correspondence position of fault trough and the second torus in second face is formed as plane.
Preferably, the clamp spring pipe for being centrally formed with being threadedly coupled with the resist-nailed seat of second torus passes through
The second central passage, be formed in second central passage and the matched recess of protrusion on the clamp spring pipe.
Preferably, the end of the puncture needle is formed with the first protrusion stretched out towards the buckle pin, and described first is convex
It rises and forms first tapered plane with the top of the puncture needle, the lower end of first protrusion forms an arcwall face.
Preferably, the end of the buckle pin is formed with the second protrusion stretched out backwards to the puncture needle, and described second is convex
It rises and forms second tapered plane with the top of the buckle pin, the lower end of second protrusion forms a buckle face.
Preferably, there are one pilot sleeves for the anastomosis apparatus；The puncture needle chamber can limit edge by the pilot sleeve
The axial movement of the pilot sleeve, the puncture needle chamber include an annular base, the puncture needle and the annular base
It is fixedly connected, annular cutter is fixedly connected in the middle part of the annular base, lower surface and the guide holder of the annular base are fixed
Connection；The lower end of the clamp spring pipe is formed with the grafting buckle structure being connected with the operating bar of the stapler.
The degradable anastomotic component of the present invention and the stapler with the degradable anastomotic component, employ degradable material
The identical fastener of material, the area that coincide is very much not easy to fall off, and can puncture to follow closely using auxiliary identical while and form puncturing hole, nothing
Identical fastener need to be done especially tiny, improve the intensity of identical fastener, improve identical reliability.Simultaneously because it can drop
The fastener that coincide made of solution material need not be made especially tiny, and required structure can be designed to according to healing time,
Disintegration time is controllable, improves the flexibility ratio of structure design.
Description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein,
A kind of structure diagram of existing stapler is shown in Fig. 1；
The decomposition perspective view looked up under state of resist-nailed seat one end of stapler shown in Fig. 1 is shown in Fig. 2；
The decomposition perspective view under the vertical view state of resist-nailed seat one end of stapler shown in Fig. 1 is shown in Fig. 3；
The exploded perspective of resist-nailed seat one end of the stapler of a specific embodiment according to the present invention is shown in Fig. 4
Figure；
The schematic cross-sectional view of clamp spring pipe is shown in Fig. 5；
Fig. 6 shows the decomposition perspective view that needle chamber is punctured shown in Fig. 4；
The decomposition perspective view of the degradable anastomotic component of a specific embodiment according to the application is shown in Fig. 7；
The structure diagram tentatively fastened of degradable anastomotic component shown in Fig. 7 is shown in Fig. 8；
The structure diagram fastened completely of degradable anastomotic component shown in Fig. 7 is shown in Fig. 9；
The identical seat piece of the degradable anastomotic component of another specific embodiment according to the application is shown in Figure 10
Schematic diagram, it is shown that the another side structure not shown in Fig. 7-9；
The identical fastener of the degradable anastomotic component of another specific embodiment according to the application is shown in Figure 11
Schematic diagram, it is shown that the another side structure not shown in Fig. 7-9；
The section view of the operating procedure of the stapler of a specific embodiment according to the present invention is shown in Figure 12-14 respectively
The state before coincideing is shown in schematic diagram, wherein Figure 12, and state when Figure 13 is shown identical, Figure 14 is shown identical
State afterwards.
Specific embodiment
In order to which the technical features, objects and effects to the present invention are more clearly understood, now control illustrates this hair
Bright specific embodiment.Wherein, identical component uses identical label.
The exploded perspective of resist-nailed seat one end of the stapler of a specific embodiment according to the present invention is shown in Fig. 4
Figure, that is, the present invention is essentially consisted in the degradable anastomotic component of stapler and the structure being associated, such as resist-nailed seat, wear
Pricker storehouse etc. is improved, and the other structures of stapler are referred to any existing stapler, such as CN
The other structures of the other structures of stapler shown in 1742684 A or existing stapler as shown in Figs. 1-3.
Specifically, stapler of the invention equally (does not show in Fig. 4 including a main body 1, can refer to Fig. 1-3 and managed
Solution), the front end of main body 1 has the resist-nailed seat 2 of a spherical crown shape, and the planar section 21 of resist-nailed seat 2, which corresponds to, punctures needle chamber 3, main body 1
Rear end there is the adjusting knob (not shown in Fig. 4, can refer to Fig. 1 and understood) of firing handle and handle.It is worn shown in Fig. 4
Position where pricker storehouse 3 is provided that identical nail bin in the prior art, and coincideing for the application need not use anastomosis staple,
Therefore the identical nail bin of the prior art is not required.It will be appreciated by those skilled in the art that the puncture needle chamber 3 set herein is mainly
For provide auxiliary puncture puncture needle, puncture needle be not intended to it is identical, effect and function and anastomosis staple it is entirely different,
It below will be to this further description.
Unlike the stapler disclosed in 1742684 A of the above-mentioned prior art, especially Fig. 1-3 or CN, this hair
Bright stapler further comprises a degradable anastomotic component 100, for being arranged on the resist-nailed seat 2 of stapler and and resist-nailed seat
It coincide between 2 opposite puncture needle chambers 3 to tubular alimentary canal, the degradable anastomotic component 100 is by degradable identical seat
Part 10 and degradable identical fastener 20 are formed.
Further, as shown in figure 4, the stapler of the application also has, there are one pilot sleeves 6；Needle chamber 3 is punctured to be led
The axial movement along pilot sleeve 6 is limited to sleeve 6.What the lower end of resist-nailed seat 2 was threadedly coupled have clamp spring pipe 7, under clamp spring pipe 7
End is formed with the grafting buckle structure 71 that can be connected with the operating bar 5 of stapler, and as shown in Fig. 5 sectional views, card is shown
The schematic cross-sectional view of reed pipe 7.As it can be seen that grafting buckle structure 71 is with the shape of grooving in the connection end of clamp spring pipe 7 in Fig. 4
The laminated structure for the elastically deformable that formula is formed, the inside of laminated structure are formed with raised (Fig. 5), pass through grafting buckle structure 71
The end of operating bar 5 can easily be made to be inserted into the lower end of clamp spring pipe 7 by way of grafting, so as to by resist-nailed seat 2 and start
Bar 5 is connected as one, in order to by operating bar 5 resist-nailed seat 2 be driven to be moved towards needle chamber 3 is punctured.
Fig. 6 shows the decomposition perspective view that needle chamber is punctured shown in Fig. 4, and as shown in Fig. 4,6, puncturing needle chamber 3 includes a ring
Shape pedestal 32, the one side of annular base 32 towards degradable anastomotic component 100 are fixedly connected with uniformly distributed multiple of multiple circumferential directions and wear
Pricker 31 (two puncture needles 31 in Fig. 5 for the sake of clarity, are illustrate only, stereogram is shown in one of them, another
It is shown that sectional view), puncture needle 31 is pierced by upwards from the lower part of annular base 32, bottom by screw (not shown) into
Row is fixedly connected, therefore from the top of annular base 32 as it can be seen that each being worn for 31 corresponding position of puncture needle including a confession
The flat hole and the circular screwhole for screw connection that pricker 31 is pierced by.The middle part of annular base 32 is fixedly connected with annular cutter 9,
The lower surface of annular base 32 is fixedly connected with guide holder 33；Guide holder 33 have with 6 matched notch 331 of pilot sleeve,
For being stuck in (not shown) on the fin in pilot sleeve 6 by notch 331, so as to which restricted guidance seat 33 rotates, it is allowed to
Can only eye pilot sleeve 6 axis direction move back and forth.
The structure diagram of the degradable anastomotic component of the application is described in detail in 7-11 with reference to the accompanying drawings, wherein, Fig. 7 is shown
What is shown is the decomposition perspective view according to the degradable anastomotic component of the specific embodiment of the application, and Fig. 7 institutes are shown in Fig. 8
Show the structure diagram tentatively fastened of degradable anastomotic component, the complete of degradable anastomotic component shown in Fig. 7 is shown in Fig. 9
The kiss of the degradable anastomotic component of another specific embodiment according to the application is shown in the structure diagram of fastening, Figure 10
The schematic diagram of seat piece is closed, it is shown that the another side structure not shown in Fig. 7-9；Figure 11 is shown according to the application's
The schematic diagram of the identical fastener of the degradable anastomotic component of another specific embodiment, it is shown that not shown in Fig. 7-9
Another side structure.
If Fig. 7-11 is shown in detail, the circular ring shape that is structure as a whole of seat piece 10 of coincideing has towards the first face of resist-nailed seat 2
And the second face towards identical fastener 20 opposite with the first face；The identical seat piece 10 has the first annulus positioned at periphery
Body 11 and the second torus 12 positioned at inner circumferential, are formed between the first torus 11 and the second torus 12 positioned at the first face
Annular easily fault trough 13 is formed with circumferential uniformly distributed multiple block button holes 14 on first torus 11.
Corresponding, coincide the circular ring shape that fastener 20 is equally structure as a whole, and has towards the 3rd face for puncturing needle chamber 3
And the fourth face towards identical seat piece 10 opposite with the 3rd face；The internal diameter of identical fastener 20 is more than the outer of annular easily fault trough 13
Footpath forms in the inside diameter ranges of fastener 20 of coincideing and is worn for the second torus 12 and annular easily fault trough 13 and resist-nailed seat 2
The first central passage 27 crossed, be formed on fourth face it is circumferential it is uniformly distributed can be with the buckle pin 24 of 14 corresponding buckle of block button hole.
The one side of root towards the first central passage 27 of each buckle pin 24 is set there are one being respectively provided with for puncturing on needle chamber 3
The puncturing hole 21 that the puncture needle 31 put passes through, it is auxiliary for first piercing out hole on intestinal tube by puncture needle 31 identical when
Buckle pin 24 is helped to penetrate intestinal tube from hole.
The outer ledge of first torus 11 is formed with the protection fence 15 extended towards resist-nailed seat 2, protection fence 15
Side is formed with multiple grooves 16 along annular.Protection fence 15 plays an important role of isolation intestinal tube and puncture needle 31, prevents intestinal tube convulsion
The puncture needle 31 being pierced by from the puncturing hole 21 of identical seat piece 10 is knocked when contraction inside contracts and causes intestinal canal damage.Groove 16, which has to mitigate, to be kissed
The effect of the quality for closing seat piece 10 and the degradation fragment for forming controllable size, to control the degradation speed of identical seat piece 10 and big
It is small.
First torus 11 is circumferentially evenly distributed with multiple first convex-concave structures on the second surface；Fastener 20 coincide the
Circumferentially it is evenly distributed with multiple second convex-concave structures on four sides, the position of the first convex-concave structure and the second convex-concave structure is mutually wrong
Arrangement is opened, negative and positive can be formed identical when and fastened.The snap-in force of bigger can be formed by negative and positive fastening to be prevented from coincideing it
Tissue among afterwards, which slides, to be departed from, and the convex-concave structure in addition to stagger can prevent identical seat piece 10 and identical fastener 20 in the circumferential
The changing of the relative positions prevents buckle pin 24 to be broken because of the changing of the relative positions.
The outer diameter of annular easy fault trough 13 is more than the outer diameter of resist-nailed seat 2, and the outer diameter of annular easily fault trough 13 is equal to puncture needle chamber 3
The outer diameter of the annular cutter 9 of upper setting.It, can be in order to which annular cutter 9 be in annular easily fault trough 13 by setting annular easily fault trough 13
Position cut off, after cutting off annular easily fault trough 13 depart from the first torus together with the second torus 12 of inside
11, and annular cutter 9 can just clamp annular easily 13 and second torus 12 of fault trough of cut-out together with resist-nailed seat 2,
Certainly, while there is the extra intestinal tube of cut-out, can together be hold by first by annular cutter 9 and resist-nailed seat 2
First central passage 27 of torus 11 and identical fastener 20 and exit intestinal tube, avoid the prior art need individually operation take
The trouble of lower resist-nailed seat 2, improves procedure efficiency, reduces the pain of patient.
Annular easily correspondence position of 13 and second torus 12 of fault trough in the second face is formed as plane.So it is convenient for by supporting
Nail seat 2 against when, the both sides of annular easily fault trough 13 are withstood by plane by resist-nailed seat 2, when annular cutter 9 with to nail
When 2 cooperation cut-out annular easily broken slot 13 of seat, the vulnerable area of annular easily fault trough 13 forms aerial construction, thus can lead to
It crosses smaller dynamics just to cut off annular easily fault trough 13, is conducive to smoothly completing for operation, reduces the operation difficulty of operator.
The second center that the clamp spring pipe 7 for being centrally formed with being threadedly coupled with resist-nailed seat 2 of second torus 12 passes through
Passage 17, be formed in the second central passage 17 with the 78 matched recess 18 of protrusion on clamp spring pipe 7, for passing through protrusion 78
Resist-nailed seat 3 is fixed in cooperation with recess 18, and resist-nailed seat 3 is prevented to be rotated about axis.
Fig. 4 is returned below, and the structure of puncture needle 31 is described in detail.As shown in figure 4, the end of puncture needle 31 be formed with towards
Be buckled the first protrusion 311 that pin 24 stretches out, and the top of the first protrusion 311 and puncture needle 31 forms first tapered plane 312, the
The lower end of one protrusion 311 forms an arcwall face 313.The effect of first protrusion 311 is to wear from puncturing hole 21 when puncture needle 31
After crossing, by the first protrusion 311 by be buckled pin 24 be hidden in arcwall face 313 lower section (puncture needle 31 and buckle pin 24 match
The state of conjunction may refer to Figure 12-14), puncture needle 31 is avoided to form two different holes on intestinal tube with buckle pin 24,
Intestinal tube, which has been pricked rotten, can not complete anastomosis operation.In addition, the first tapered plane 312, which can be formed, preferably punctures effect, and first is convex
Playing arcwall face 313 that 311 lower ends are formed can be when identical backed off after random puncture needle 31, convenient for buckle pin 24 along arc
313 smooth movement of face is in order to avoid stuck.
Fig. 7 is returned below, and the structure of buckle pin 24 is described in detail.In another specific embodiment, as shown in fig. 7, card
The end of fibula 24 is formed with the second protrusion 241 stretched out backwards to puncture needle 31, the second protrusion 241 and the top shape of buckle pin 24
Into second tapered plane 242, the lower end of the second protrusion 311 forms a buckle face 243.The second of the end of buckle pin 24 is convex
It plays 241 to be mainly used for forming snap effect by buckle face 243 and block button hole 14,242 one side of the second tapered plane, which forms, cuts
Sharp structure allows it to pass through the hole formed on intestinal tube by puncture needle 31, and another aspect sharpening structure reduces its end
The area contacted with the arcwall face 313 of puncture needle 31 so that frictional force when 31 withdraw of the needle of puncture needle is reduced.And the face that is buckled
243 in order to realize firm buckle, it is impossible to be designed to cambered surface, be preferably normal to the plane of buckle pin 24.
In a specific embodiment, degradation material can wrap used by degradable anastomotic component 100 of the invention
Include the homopolymer or its copolymer of glycolide, lactide, Lanthanum Isopropoxide, caprolactone, trimethylene carbonate.
The design of the present invention is schematically illustrated above, that is to say, that the present invention is essentially consisted in the degradable of stapler
Anastomotic component 100 is improved, corresponding that original identical nail bin, generation is substituted after improving degradable anastomotic component 100
The puncture needle chamber 3 with the application, smoothly exited for the ease of resist-nailed seat 2, the diameter of resist-nailed seat 2 can be slightly reduced.
In addition, the other structures of the stapler of the application are referred to any existing stapler, likewise, the present invention
The realization of stapler, it is smaller for the structural modification of existing stapler, without being redesigned to existing stapler.Such as the present invention
It only needs to provide a new puncture needle chamber 3, resist-nailed seat 2 is only needed using small diameter component, and shape need not all change.
The degradable anastomotic component 100 of the cooperation present invention can be easily achieved anastomosis operation, change original operation without operator
Custom greatly reduces the difficulty that operator adapts to and learns.
Operating process and application method referring to Figure 12-14 staplers that the present invention will be described in detail.This field skill
Art personnel referring to the drawings can be with the technical characterstic and advantage of the present invention easier to understand.Wherein, it is clear in order to show, only show
Go out in Fig. 4 and removed the schematic cross-sectional view of the structure beyond operating bar 5.
As shown in figure 12, before gastrointestinal surgery is carried out, resist-nailed seat and identical seat piece first is previously assembled at together, is supported
The planar section 21 of nail seat 2 and the first face paste of identical seat piece 10 are closed.The fastener 20 that coincide is previously assembled at the top for puncturing needle chamber 3
End, the 3rd face of the fastener that coincide are bonded with puncturing the top of needle chamber 3.
The association of resist-nailed seat 2 and identical seat piece 10 is embedded in the tube chamber of one side and is bundled on the outside with forward line and is tightened.Kiss
Clutch device body from the insertion of opposite side official jargon equally with forward line is bundled and tightened on the outside.By the clamp spring pipe 7 of resist-nailed seat 2 and main body 1
5 grafting card of operating bar is good, adjusts afterbody knob, resist-nailed seat 2 is made to be moved under the drive of operating bar 5, readiness for closing grip tissue,
As shown in figure 12, the view before anastomosis procedure is shown.
The structure diagram just in anastomosis procedure is shown in Figure 13.When resist-nailed seat 2 and needle chamber 3 is punctured by tissue closure
After clamping, puncture needle 31 and annular cutter 9 are released together to resist-nailed seat 2, then puncture needle 31 penetrates identical fastener 20
Puncturing hole 21 pierces through the intestinal tube of two layers of clamping, while annular cutter 9 also continues to move forward.Pin 24 be buckled with puncture needle 31 1
It rises and punctures intestinal tissue, reach the first face of seat piece 10 of coincideing；Annular cutter 9 will be clipped in the intestinal wall group of stapler inner cavity simultaneously
Knit and identical seat piece 10 annular easily fault trough 13 support at the edge of resist-nailed seat 2, by intestinal tissue, annular easily fault trough 13 and
The second torus 12 on the inside of it is cut off together.
It is exactly finally the withdrawing process after coincideing, as shown in figure 14.Operating bar 5 is recalled, and is driven resist-nailed seat 2, is cut
The second torus 12 and annular easily fault trough 13, annular cutter 9, puncture needle 13 etc. withdraw from intestinal tube together；The radius of resist-nailed seat 2 is small
In the first central passage 27 of the fastener 20 that coincide, therefore can successfully withdraw from.Finally identical seat piece 10 and identical fastener 20 pass through
The buckle face 243 of buckle pin 24 is stuck in the outside of block button hole 14, realizes close fasten；Second torus 12 and annular easily fault trough 13
A hollow cavity is left after being cut by annular cutter 9, is flowed convenient for intestinal contents.
It will be appreciated by those skilled in the art that although the present invention is described in the way of multiple embodiments,
It is that not each embodiment only includes an independent technical solution.So narration is used for the purpose of for the sake of understanding in specification,
Those skilled in the art should consider the specification as a whole is understood, and by technical solution involved in each embodiment
The mode of different embodiments can be mutually combined into understand protection scope of the present invention by regarding as.
The foregoing is merely the schematical specific embodiments of the present invention, are not limited to the scope of the present invention.It is any
Those skilled in the art, equivalent variations, modification and the combination made on the premise of the design of the present invention and principle is not departed from,
The scope of protection of the invention should all be belonged to.
Claims (10)
1. a kind of degradable anastomotic component, for be arranged on the resist-nailed seat of stapler (2) and with the resist-nailed seat (2) is opposite wears
Pricker storehouse coincide to tubular alimentary canal between (3), and the degradable anastomotic component (100) is by degradable identical seat piece
(10) formed with degradable identical fastener (20), degradation material includes used by the degradable anastomotic component (100)
Glycolide, lactide, Lanthanum Isopropoxide, caprolactone, the homopolymer of trimethylene carbonate or its copolymer, feature exist
In,
The circular ring shape that the identical seat piece (10) is structure as a whole, have towards the first face of the resist-nailed seat (2) and with
Opposite the second face towards the identical fastener (20) in first face；The identical seat piece (10) has the positioned at periphery
One torus (11) and the second torus (12) positioned at inner circumferential, between first torus (11) and the second torus (12)
The annular easily fault trough (13) positioned at first face is formed with, is formed on first torus (11) circumferential uniformly distributed multiple
Block button hole (14)；
The circular ring shape that the identical fastener (20) is structure as a whole, have towards it is described puncture needle chamber (3) the 3rd face and
The fourth face towards the identical seat piece (10) opposite with the 3rd face；The internal diameter of the identical fastener (20) is more than described
The outer diameter of annular easily fault trough (13), forms in the inside diameter ranges of the identical fastener (20) for second torus
(12) and annular first central passage (27) that easily fault trough (13) and the resist-nailed seat (2) pass through, on the fourth face
Be formed with it is circumferential it is uniformly distributed can buckle corresponding with the block button hole (14) buckle pin (24).
2. degradable anastomotic component as described in claim 1, which is characterized in that the root of each buckle pin (24) towards
First central passage (27) supplies the puncturing hole for puncturing the puncture needle (31) set on needle chamber (3) and passing through there are one setting
(21)。
3. degradable anastomotic component as described in claim 1, which is characterized in that the outer ledge of first torus (11)
The protection fence (15) extended towards the resist-nailed seat (2) is formed with, the side of the protection fence (15) is formed with along annular
Multiple grooves (16).
4. degradable anastomotic component as described in claim 1, which is characterized in that first torus (11) is described second
Multiple first convex-concave structures are circumferentially evenly distributed on face；The identical fastener (20) is circumferentially uniform on the fourth face
It is distributed with multiple second convex-concave structures, the position of first convex-concave structure and second convex-concave structure is staggeredly arranged,
Negative and positive can be formed identical when to fasten.
5. degradable anastomotic component as described in claim 1, which is characterized in that the outer diameter of the annular easily fault trough (13) is more than
The outer diameter of the resist-nailed seat (2), and the outer diameter of annular easily fault trough (13) is equal to the annular cutter set on the puncture needle chamber (3)
(9) outer diameter.
6. degradable anastomotic component as described in claim 1, which is characterized in that the annular easily fault trough (13) and the second annulus
Correspondence position of the body (12) in second face is formed as plane.
7. degradable anastomotic component as described in claim 1, which is characterized in that the second torus (12) are centrally formed
The second central passage (17) that the clamp spring pipe (7) for having to be threadedly coupled with the resist-nailed seat (2) passes through, second center lead to
It is formed on road (17) and protrusion (78) matched recess (18) on the clamp spring pipe (7).
8. degradable anastomotic component as described in claim 1, which is characterized in that the end of the puncture needle (31) is formed with face
First raised (311) stretched out to the buckle pin (24), described first raised (311) and the top shape of the puncture needle (31)
Into first tapered plane (312), the lower end of described first raised (311) forms an arcwall face (313).
9. degradable anastomotic component as described in claim 1, which is characterized in that the end of the buckle pin (24) is formed with the back of the body
Second raised (241) stretched out to the puncture needle (31), described second raised (241) and the top shape of the buckle pin (24)
Into second tapered plane (242), the lower end of described second raised (311) forms buckle face (243).
A kind of 10. stapler of the degradable anastomotic component with described in one of claim 1-9, which is characterized in that the kiss
There are one pilot sleeves (6) for clutch tool；The puncture needle chamber (3) can be limited by the pilot sleeve (6) along the pilot sleeve
(6) axial movement, the puncture needle chamber (3) include an annular base (32), the puncture needle (31) and the annular bottom
Seat (32) is fixedly connected, and is fixedly connected with annular cutter (9) in the middle part of the annular base (32), under the annular base (32)
Surface is fixedly connected with guide holder (33)；The lower end of the clamp spring pipe (7) is formed with to be connected with the operating bar of the stapler (5)
Grafting buckle structure (71).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810109162.7A CN108095789B (en) | 2018-02-05 | 2018-02-05 | Degradable anastomosis component and anastomat with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109162.7A CN108095789B (en) | 2018-02-05 | 2018-02-05 | Degradable anastomosis component and anastomat with same |
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| CN108095789B CN108095789B (en) | 2023-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109157253A (en) * | 2018-11-05 | 2019-01-08 | 王志东 | A kind of enteric cavity stapler of modified form |
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| Publication number | Publication date |
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| CN108095789B (en) | 2023-06-23 |
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