CN106923881A - A kind of operation anastomat - Google Patents
A kind of operation anastomat Download PDFInfo
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- CN106923881A CN106923881A CN201511027744.3A CN201511027744A CN106923881A CN 106923881 A CN106923881 A CN 106923881A CN 201511027744 A CN201511027744 A CN 201511027744A CN 106923881 A CN106923881 A CN 106923881A
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- Prior art keywords
- nail bin
- cutting knife
- cutting
- packing ring
- tissue
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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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
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- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physiology (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of operation anastomat, it includes instrument body, the handle portion for being arranged on the body proximal end and the nail head for being arranged on the body distal end, wherein, the nail head includes nail bin groupware, anvil block and organizes anti-overflow mechanism；The nail bin groupware includes nail bin and the cutting knife being movably disposed in the nail bin；The anvil block includes the knife anvil and nail anvil positioned at the distal cartridge end, and the knife anvil is provided with cutting packing ring corresponding with the cutting knife；The described anti-overflow mechanism of tissue includes being extended to from the nail bin two extensions of the anvil block, and described two extensions can keep therebetween tissue；Each comfortable its of described two extensions is provided with a guiding structural along its length with the relative inner side of tissue contact；The guiding structural has a sliding surface and a supporting surface.Operation anastomat of the invention can prevent tissue from overflowing during operation, so that fully detachment tissue is better achieved.
Description
Technical field
The invention belongs to medical instruments field, it is related to a kind of surgery instrument, and in particular to one kind operation kiss
Clutch.
Background technology
Stapler is a kind of medicine equipment for substituting manual suture, is widely used in the alimentary canal physiology such as enteron aisle
The surgical stapling operation of tissue, main operational principle be using cutting knife and anastomosis staple tissue is carried out detachment and
It coincide.
Typically, operation anastomat includes nail bin groupware, anvil block, close mechanism and firing lock, its
Middle nail bin groupware includes having housed the nail bin of anastomosis staple and cutting knife, wherein, typically cutting knife both sides be provided with to
Few row's anastomosis staple；Described anvil block includes anvil block；Close mechanism is used to allow nail bin and anvil block mutual
It is close, so as to the tissue of receiving is clamped between nail bin and anvil block；Firing lock is used to fire anastomosis staple
And cutting knife, both is pushed out from nail bin and march to anvil block, thus realize being held on nail bin and anvil block it
Between tissue cutting and suture.
Ideal situation is that cutting knife is penetrated during marching to anvil block from nail bin after cutting knife is fired
The whole tissue of tissue and thoroughly detachment.However, during actual use, tissue is followed closely
Storehouse and the extruding of anvil block, are easily crushed and cause the tissue at two ends to overflow, and cutting knife cannot detachment two
The spilling tissue at end, so as to the problem for causing tissue to completely cut through.
The content of the invention
It is an object of the invention to provide a kind of operation anastomat, it include instrument body, be arranged on it is described
The handle portion of body proximal end and the nail head for being arranged on the body distal end, wherein, the nail head includes
Nail bin groupware, anvil block and the anti-overflow mechanism of tissue；The nail bin groupware includes nail bin and is movably disposed at
Cutting knife in the nail bin；The anvil block includes the knife anvil and nail anvil positioned at the distal cartridge end, the knife
Anvil is provided with cutting packing ring corresponding with the cutting knife；The nail bin can be at one relative to the anvil block
Separately relative motion is carried out between position and the near position that connects；The cutting knife can activated from
The cutting packing ring is stretched out and marched in the nail bin；The anti-overflow mechanism of described tissue is included from the nail
Storehouse extends to two extensions of the anvil block, described two extensions can by tissue be maintained at both it
Between；Each comfortable its of described two extensions is provided with one along length side with the relative inner side of tissue contact
To guiding structural；The guiding structural has a sliding surface and a supporting surface；The cutting knife has by near
Hold two ends extended to distal end；Stretched out from the nail bin in the cutting knife and march to the cutting
During packing ring, the guiding structural of two ends of the cutting knife respectively with described two extensions is matched somebody with somebody
Close.
In a preferred embodiment of the invention, the end of the cutting knife has an end face and two
Side wall, during the cutting knife stretches out from the nail bin and marches to the cutting packing ring, institute
The end face for stating the end of cutting knife is held in the supporting surface, and the end one of side wall edge
The sliding surface of described two extensions is slided.
In a more preferred embodiment of the present invention, in the guiding structural, the sliding surface with
The supporting surface connects to form " L " shape structure.
In a preferred embodiment of the invention, the anti-overflow mechanism of described tissue also includes being arranged on institute
State stop part on anvil block, making tissue be maintained between the two ends of the cutting packing ring.
In a more preferred embodiment of the present invention, the stop part has a confined planes, works as institute
When stating two extensions and extending to the anvil block, described confined planes are oppositely disposed with described sliding surface
So as to form a stopper slot；When the cutting knife marches to described cutting packing ring, described cutting knife position
In in the stopper slot.
In another more preferred of the invention, the anvil block be provided with two respectively with it is described
The corresponding cooperation position of two extensions；Described two cooperation positions are respectively at the cutting packing ring two ends
Side, to cause the cutting knife alignment cutting packing ring and march in the cutting packing ring；It is described to stop
Block piece is located at the inner side of the cooperation position with separating tissues and extension.
In a preferred embodiment of the invention, the distal face of the nail bin be provided with separating tissues with
Two separators of extension.
In a preferred embodiment of the invention, the nail head also includes preventing the extension footpath
To the anti-rotation structure for rotating.
In a more preferred embodiment of the present invention, the anti-rotation structure includes being arranged on the nail bin
Interior chute, in the axial direction along the slide, the chute prevents the extension to the extension
Radial rotating.
Operation anastomat of the invention can prevent tissue from overflowing during operation, to be better achieved
Fully detachment tissue.
Brief description of the drawings
Fig. 1 is the stereogram of the operation anastomat according to the embodiment of the present invention 1；
Fig. 2 is the stereogram that closure state is according to the operation anastomat of the embodiment of the present invention 1；
Fig. 3 is the exploded view of the nail head of the operation anastomat according to the embodiment of the present invention 1；
Fig. 4 is the stereogram of the nail bin shown in Fig. 3；
Fig. 5 is the exploded view of the anvil block shown in Fig. 3；
Fig. 6 is the stereogram of knife anvil shown in Fig. 5；
Fig. 7 is the nail bin (not installing two extensions) of the operation anastomat according to the embodiment of the present invention 2
Stereogram；
Fig. 8 is the nail bin (being mounted with two extensions) of the operation anastomat according to the embodiment of the present invention 2
Stereogram；
Fig. 9 is the stereogram of the knife anvil according to the operation anastomat of the embodiment of the present invention 2；
Figure 10 is the nail bin (being mounted with two extensions) of the operation anastomat according to the embodiment of the present invention 3
Stereogram；
Figure 11 is the stereogram of the extension shown in Figure 10；
Figure 12 is the stereogram of the knife anvil according to the operation anastomat of the embodiment of the present invention 3.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the present invention will be described in detail.But these realities
The mode of applying is not intended to limit the present invention, and one of ordinary skill in the art is made according to these implementation methods
Structure, method or conversion functionally are all contained in protection scope of the present invention.
The word of described expression position and direction in of the invention, be using exercises on apparatus author as reference,
It is near-end near one end of operator, the one end away from operator is distal end.Refer to axially near-end to distal end
Length direction.
" first ", " second " for being previously mentioned in present embodiment etc. and position relationship or structure are not included
Absolute differentiation relation functionally, also, in various embodiments, may be marked using identical
Or label, this also not representative structure or contact functionally, and merely for convenience of description.
Embodiment 1
Referring to Fig. 1 to Fig. 6, the operation anastomat of the embodiment of the present invention 1 is shown.Referring to Fig. 1 to figure
2, the operation anastomat of the embodiment of the present invention 1 mainly includes：Instrument body 100, it is arranged on body 100
The handle portion 200 of near-end and the nail head 300 for being arranged on the near-end of body 100.
Instrument body 100 includes thering is support 101 proximally and distally.Handle portion 200 is included by surgery
Gripping member 201 that doctor holds with a hand etc..
Nail head 300 includes nail bin groupware 1, anvil block 2 and organizes anti-overflow mechanism's (non-label).
Preferably, in the present embodiment, nail head 300 is bending, and operation anastomat is kissed for flexure type
Clutch, referring to Fig. 1 to Fig. 3, nail head 300 is included for supporting and installing nail bin groupware 1 and anvil block
2 U-shaped supporting construction 3.Nail head 300 can be designed to have many of replaceable nail bin groupware 1
Secondary percussion lock, it is also possible to be designed to single percussion lock.
Nail bin groupware 1 can be at one separately between position and the near position that connects relative to anvil block 2
Carry out relative motion.Operation anastomat shown in Fig. 1 is in opening, and nail bin groupware 1 is relative to anvil
Seat 2 is placed between nail bin groupware 1 and anvil block 2 in the position separately with by tissue.Fig. 2
Shown operation anastomat is in closure state, and nail bin groupware 1 is in described being close relative to anvil block 2
Position with by between the two tissue positioning and clamp.
Referring to Fig. 3 and Fig. 4, nail bin groupware 1 includes nail bin 11 and is movably disposed in nail bin 11
Cutting knife 12.The distal face of nail bin 11 is nail bin face 11a, i.e., the surface for being contacted with tissue.Nail bin face
What the confession cutting knife that 11a is provided with stretched out leads cutter groove slotted eye 11b, leads cutter groove slotted eye 11b both sides for multiple rows of friendship
Binding groove slotted eye 11c that mistake is arranged, for anastomosis staple release.Nail bin groupware 1 also includes being arranged on nail bin
Nail-pushing part 13 in 11, for anastomosis staple to be released from nail bin 11, from figure 3, it can be seen that
It is provided with nail-pushing part 13 and lead cutter groove (not marked in figure) for what cutting knife 12 was passed.
Referring to Fig. 3, Fig. 5 and Fig. 6, anvil block 2 include positioned at the distal end of nail bin 11 and with nail bin 11
The nail anvil 22 and knife anvil 21 being oppositely disposed, nail anvil 22 are provided with corresponding with bookbinding groove slotted eye 11c
Nail forming area 22c, knife anvil 21 is provided with cutting packing ring 211 corresponding with cutting knife 12.In this implementation
In example, referring to Fig. 5, knife anvil 21 is located at the distal end of nail anvil 22, and is removably secured with nail anvil 22
Connection.Through hole 22b (may be located at the center of nail forming area 22c) can be offered on nail anvil 22,
When nail anvil 22 is connected with knife anvil 21, through hole 22b exposes cutting packing ring 211, thus, anvil block 2
There is cutting packing ring 211 simultaneously on the proximal end face towards nail bin 11 and cutting packing ring is centered around 211 weeks
The nail forming area 22c for enclosing.
Cutting knife 12 stretches out and marches to cutting packing ring 211 in which can activated from nail bin 11.Specifically,
In the present embodiment, body 100 and handle portion 200 are designed to have and make nail bin 11 and the anvil block 2 can
Percussion with close mechanism (not shown) close to each other and for firing anastomosis staple and cutting knife 12
Mechanism's (not shown).As depicted in figs. 1 and 2, handle portion 200 include can pivot from body 100
The trigger 202 for extending out with turning.In the present embodiment, trigger 202 with close mechanism the phase in actuating
Association, while being also associated in actuating with firing lock.As shown in figure 1, nail bin 11 is in opening
Position is so as to tissue is placed between nail bin 11 and anvil block 2.When surgeon's grip pressure trigger 202, pull
Machine 202 is moved towards gripping member 201, so as to drive close mechanism so that nail bin 11 is moved towards anvil block 2.
As shown in Fig. 2 nail bin 11 is in the close position, nail bin face 11a and the near-end of anvil block 2 of distal cartridge end
Face is close to each other so as to position and keep tissue.Afterwards, when surgeon continues grip pressure trigger 202,
Firing lock (including nail-pushing part 13 etc.) cutting knife 12 and anastomosis staple are released from nail bin 11, respectively
Cutting packing ring 211 and nail forming area 22c to anvil block 2 are shot to cut and clench tissue.
In the present embodiment, trigger 202 can reset.
In an alternate embodiment of the present invention, handle portion 200 include two triggers (closure trigger and
Firing trigger), it is associated in actuating with close mechanism and firing lock respectively.
Organize anti-overflow mechanism include be arranged on it is on anvil block 2, make tissue be maintained at cutting packing ring 211 two
Stop part 212 between end.Preferably, in the present embodiment, referring to Fig. 6, in cutting packing ring 211
End positions respectively set a stop part 212, two stop parts 212 each have a stop surface 2120,
Two stop surfaces of stop part 212 2120 are oppositely disposed that (alternatively stop surface 2120 is towards cutting
Packing ring 211 it is centrally disposed), so as to tissue is maintained between two stop surfaces 2120.Such one
Come, not only facilitate the positioning of tissue, it is often more important that under the closure state of Fig. 2, positioned at nail bin
When tissue between 11 and anvil block 2 is extruded, tissue two ends are subject to hindering for two stop surfaces 2120 respectively
Gear and constraint, will not spill into outside cutting packing ring 211 because of excessive compression, and cutting knife 12 can be complete
Detachment is constrained on the tissue between the two ends of cutting packing ring 211.
Preferably, as shown in fig. 6, stop surface 2120 is an inclined plane, it can be with cutting packing ring 211
Form obtuse angle, that is to say, that stop surface 2120 can be formed with the cutting place plane of packing ring 211 and is more than
90 degree of dihedral angles less than 180 degree.Preferably, the inclined plane of stop surface 2120 extend distally to
The end for cutting packing ring 211 is directly connected to.Preferably, stop part 212 is protrusion, from anvil block 2
Proximally direction projection.Preferably, as shown in fig. 6, stop part 212 substantially be in from distal end to near-end,
The ridge projections part that cross section is gradually reduced.Preferably, on the basis of cutting the place plane of packing ring 211,
The vertical height of the proximally direction projection of stop part 212 does not influence the closure of apparatus.In the present embodiment,
Stop part 212 is arranged on knife anvil 21.In another embodiment of the present invention, stop surface 2120
Dihedral angle that can also be with cutting packing ring 211 shape at an acute angle or a right angle.
Generally, cutting packing ring 211 is a plastic washer, and cutting knife 12 marches to cutting packing ring 211 simultaneously
Cutting penetrates the plastic washer with the thorough detachment tissue on the thickness direction of tissue.It will be apparent that final
It is also to identify tissue in a thickness direction by the proof of thorough detachment to be cut the plastic washer that penetrates, together
When to doctor with touch feedback.
Preferably, as shown in fig. 6, offering stopper slot 213 on stop part 212, when the row of cutting knife 12
When proceeding to cutting packing ring 211, cutting knife 12 is located in stopper slot 213.That is, receive the two sides of cutting knife 12
To the limitation (in other words, stopper slot 213 is adapted with the shape of cutting knife 12) of stopper slot 213, from
And prevent displacement of the cutting knife 12 on its two sides direction or rock.From fig. 6 it can be seen that at this
In embodiment, stop part 212 is made up of a pair of protrusions, and this pair of protrusions are located at stopper slot 213
Both sides, in other words this pair of protrusions form respectively the both sides of stopper slot 213.It is furthermore preferred that limit
Position groove 213 is vertical or substantially vertical with cutting packing ring 211, so as to the travel path with cutting knife 12 keeps
Unanimously.
As shown in Figure 3 and Figure 4, organizing anti-overflow mechanism also includes extend from nail bin 11 to anvil block 2 two
Individual extension 14,15, two extensions 14,15 can keep therebetween tissue.Work as nail bin
11 it is in the close position when, the tissue being drawn into nail head 300 is maintained in the thickness direction thereof
Between nail bin 11 and anvil block 2, its two ends is maintained between two extensions 14,15.
Two extensions 14,15 each comfortable its are provided with one along length with the relative inner side of tissue contact
Spend direction guiding structural 141,151, and organize two ends be maintained at two guiding structurals 141,
Between 151.During cutting knife 12 stretches out from nail bin 11 and marches to cutting packing ring 211, cut
Slided along two guiding structurals of extension 14,15 141,151 respectively at the both ends of knife 12.So
One, because the two ends organized are subject to two stops and constraint of extension 14,15, cutting knife 12 respectively
Two ends while slided along guiding structural 141,151, the blade of cutting knife 12 can just be completely covered
The two ends of tissue, will not occur tissue two ends overflow cannot detachment situation.
Preferably, in the present embodiment, guiding structural 141,151 is a Guiding surfaces, and is organized
Two ends be maintained between two Guiding surfaces 141,151.Stretched out from nail bin 11 in cutting knife 12
And during marching to cutting packing ring 211, the end face at the both ends of cutting knife 12 is held in two respectively
The Guiding surfaces 141,151 of extension 14,15 and along Guiding surfaces 141,151 slide.
In an alternative embodiment, guiding structural 141 is a guiding groove, the both ends of cutting knife 12
It is arranged in guiding groove and is slided along guiding groove.
In the present embodiment, two extensions 14,15 are rod-like element.Preferably, two extensions 14,
15 can be with difference, and one of them is the first extension 14, and another is the second extension 15.
For example, the first extension 14 can be the alignment pin being slidably disposed in nail bin 11, it can
To activated stretch, so as to the retracted position with retraction nail bin 11 and extend out to stretching out for anvil block 2
Position, when alignment pin 14 extend out to anvil block 2, alignment pin 14 coordinates with anvil block 2 realizes nail bin 11
With the position alignment of anvil block 2, specifically, the bookbinding groove slotted eye that on the one hand can realize on the 11a of nail bin face
11c is aligned with the nail forming area 22c on nail anvil 22, and prior one side is better achieved and cuts
Knife 12 and the position alignment for cutting packing ring 211.
Preferably, as shown in Figure 3 and Figure 4, alignment pin 14 has a tip 142, when it is in
During extended position, the tip 142 corresponding with anvil block 2 (knife anvil 21) first of alignment pin coordinates position
214 cooperations are put so as to realize position alignment.In the present embodiment, the first cooperation position 214 is to be opened in
Hole on knife anvil 21, naturally it is also possible to be the groove being arranged on knife anvil 21.Alignment pin 14 can be with people
The manual mode of work activated, it is also possible to is associated in actuating with close mechanism, i.e., makes in close mechanism
While nail bin 11 moves to closing position, alignment pin 14 is also set to be moved to extended position and anvil block 2
Coordinate and realize alignment.
For example, the second extension 15 therein can be fixedly disposed at the steady pin in nail head 300
15.Preferably, steady pin 15 is fixedly connected with anvil block 2.As shown in Figures 3 to 6, (the nail of anvil block 2
Anvil 22) side there is the connector 222 that proximally extends, the near-end of steady pin 15 is fixedly installed to
The near-end mounting hole 2221 of connector 222, the distal end of steady pin 15 sequentially passes through nail bin groupware 1 and (pushes away
Nail piece 13 and nail bin 11 etc.), the near-end mounting hole 2221 of connector 222, until with the (knife of anvil block 2
Anvil 21) on corresponding second cooperation position 215 coordinate so as to realize the fixation of steady pin 15 and anvil block 2
Connection.In the present embodiment, the second cooperation position 215 is the hole being opened on knife anvil 21.Certainly,
It can be the groove being arranged on knife anvil 21.
As shown in figure 5, the first cooperation position 214, steady pin 15 that alignment pin 14 coordinates with anvil block 2
The second cooperation position 215 coordinated with anvil block 2 is located at the side of the two ends boundary of cutting packing ring 211 respectively
Side.In the present embodiment, the hole of the first cooperation position 214, the second cooperation position 215 hole respectively with
Cut the two ends border engagement of packing ring 211.Therefore, when nail bin 11 moves to closing position, alignment
The distal end of pin 14 and steady pin 15 coordinates with anvil block 2 to limit the two ends border of cutting packing ring 211,
Fully aligned with the position of cutting packing ring 211 so as to realize cutting knife 12 in advance, subsequent cutting knife 12 is hit
During being sent to anvil block 2, the two ends of cutting knife 12 will necessarily be along alignment pin 14 and steady pin 15
Guiding structural accurately slide into cutting packing ring 211 two ends border within, i.e., cutting knife 12 without departing from
Cut beyond the two ends border of packing ring 211.
As shown in fig. 6, two stop parts 211 are located at the two ends of cutting packing ring 211 and are separately positioned on the
The inner side of one cooperation position 214 and the second cooperation position 215, so that when operation anastomat is in Fig. 2
Closure state when, two stop parts 211 can tissue and alignment pin 14 and steady pin 15 somewhat every
From further preventing the situation of tissue adhesion's (not completely cutting through).
Preferably, as shown in figure 5, when alignment pin 14 and steady pin 15 respectively with anvil block 2 on first
When 214 and second cooperation position of cooperation position 215 coordinates, two lateral surfaces of stop part 211 respectively with
The Guiding surfaces 141 of alignment pin 14 and the Guiding surfaces 151 of steady pin 15 are fitted.
Embodiment 2
The operation anastomat of embodiment 2 and the difference of embodiment 1, it is as described below：
Referring to Fig. 7 and Fig. 8, the nail bin face 11a of nail bin 11 is provided with separating tissues and two extensions
14th, 15 separator 111.
Specifically, nail bin face 11a is provided with the mounting hole 11d stretched out for two extensions 14,15,
Two are additionally provided with the 11a of nail bin face and are individually insulated tissue and two separators of mounting hole 11d 111.Such as
Shown in Fig. 7, separator 111 is located at the inner side contacted with tissue of mounting hole 11d and to distal projection,
Separator 111 can be in nail bin face 11a institutes separating tissues and mounting hole 11d in the plane, so as to isolate
Tissue and extension 14,15.
Preferably, when nail bin 11 is in the position being close relative to anvil block 2, separator 111 enters
Enter in the stopper slot 213 of stop part 212.
Preferably, referring to Fig. 7, separator 111 includes being separately positioned on the both sides for leading cutter groove slotted eye 11b
A pair of isolation projections, it is furthermore preferred that this pair of isolation projections can enter to distal end along the cell wall for leading cutter groove
One step extends, and further spacing guide function is played such that it is able to the motion to cutting knife 12.
In addition, nail head 300 also includes devising the anti-rotation knot for preventing extension 14,15 radial rotatings
Structure.
Referring to Fig. 8 and Fig. 9, anti-rotation structure can include the draw-in groove being arranged on anvil block 2 (knife anvil 21)
217.By taking extension 15 as an example, when the distal end 153 of extension 15 extends to anvil block 2, extension
15 distal end 153 (along its axial direction/length direction) insertion draw-in groove 217, coordinates with draw-in groove 217, while
Draw-in groove 217 can prevent the rotation diametrically of extension 15.
Preferably, in the present embodiment, two extensions 14,15 and corresponding draw-in groove 216 on anvil block 2,
217 coordinate to limit the two ends border of cutting packing ring 211, and subsequent cutting knife 12 is fired to anvil block 2
During, the two ends of cutting knife 12 will necessarily be along two guiding structurals of extension 14,15 accurately
Cutting packing ring 211 is slid into penetrate plastic washer.
Preferably, as shown in figure 9, two stop parts 212 at cutting packing ring 211 two ends and draw-in groove 216,
217 entity structure is integrally formed, and the stopper slot 213 opened up on two stop parts 212 is respectively with two
Individual draw-in groove 216,217 is spatially connected.
Referring to Fig. 7 and Fig. 8, anti-rotation structure can also include be arranged in nail bin 11 chute (referring to
In Fig. 7 shown in mounting hole 11d) anti-rotation fit structure and extension 14,15 between, specifically,
By taking extension 15 as an example, extension 15 can on axial direction/length direction along slide (from installation
Hole 11d extend out to anvil block 2), but chute can prevent the rotation diametrically of extension 15.It is preferred that
, in the present embodiment, the cross section of extension 14,15 is in discount vibram outlet shape, chute cross section (referring to
Mounting hole 11d in Fig. 7) be in discount vibram outlet shape, so as to realize extension 14,15 and nail bin 11 axially/
Slip on length direction, and rotation stop diametrically.Preferably, extension 14,15 is transversal
In face, half of the discount vibram outlet area less than the transversal gross area.
On the one hand the anti-rotation structure of the present embodiment can enable cutting knife 12 more stably along extension
14th, 15 slide, on the other hand, the positioning of extension 14,15 is better achieved, finally realize cutting knife
Position alignment between 12 and cutting packing ring 211.
Certainly, those skilled in the art can be gone out with Demand Design of the invention and much realize extension
The alternative structure of radial rotation, this point is well-known to those skilled in the art.
Embodiment 3
The operation anastomat of embodiment 3, it include instrument body, be arranged on body proximal end handle portion and
The nail head of body distal end is arranged on, wherein, nail head includes nail bin groupware, anvil block and organizes anti-overflow machine
Structure；Nail bin groupware includes nail bin and the cutting knife being movably disposed in nail bin；Anvil block includes being located at nail bin
The knife anvil and nail anvil of distal end, knife anvil are provided with cutting packing ring corresponding with cutting knife；Nail bin can relative to anvil block
Separately relative motion is carried out with one between position and the near position that connects；Cutting knife can activated
Ground stretches out from nail bin and marches to the cutting packing ring.
The overall structure of embodiment 3 substantially with embodiment 1, chat by the correlation referred in above-described embodiment 1
State, will not be repeated here.
Embodiment 3 is with the difference of embodiment 1：Organize anti-overflow mechanism.
As shown in Figure 10, the anti-overflow mechanism of the tissue of embodiment 3 includes extending to anvil block (figure from nail bin 11 '
Not shown in) two extensions 14 ', 15 ', can be maintained at for tissue by two extensions 14 ', 15 '
Between the two；When nail bin 11 ' is in the close position, it is drawn into nail head (not shown)
Tissue is maintained between nail bin 11 ' and anvil block in the thickness direction thereof, and its two ends is maintained at two and prolongs
Stretch between part 14 ', 15 '.Two each comfortable its relative inner sides with tissue contact of extension 14 ', 15 '
A guiding structural 141 ', 151 ' along its length is provided with, and the two ends organized are maintained at
Between two guiding structurals 141 ', 151 '.(ginseng is stretched out from nail bin 11 ' in cutting knife (not shown)
See that what the confession cutting knife shown in Figure 10 stretched out leads cutter groove slotted eye 11b) and march to cutting packing ring 211 '
During, two ends of cutting knife are respectively along two guiding structurals of extension 14 ', 15 ' 141 ', 151 '
Slide.So, because the two ends organized are subject to two stop peace treaties of extension 14 ', 15 ' respectively
Beam, while the two ends of cutting knife are slided along guiding structural 141 ', 151 ', the blade of cutting knife just can be complete
Cover the two ends of tissue, will not occur tissue two ends overflow cannot detachment situation.
By taking extension 15 ' as an example, referring to Figure 11, its guiding structural 151 ' with a sliding surface 151a ' and
One supporting surface 151b '.
During cutting knife stretches out from nail bin 11 ' and marches to cutting packing ring 211 ', two of cutting knife
While end is held in supporting surface 141b ', the 151b ' of two extensions 14 ', 15 ', prolong along two
Sliding surface 141a ', the 151a ' for stretching part 14 ', 15 ' are slided.
Preferably, in the present embodiment, the end of cutting knife has an end face and two side walls, wherein,
During cutting knife stretches out from nail bin 11 ' and marches to cutting packing ring 211 ', it is with extension 15 '
Example, the end face of cutting knife end is held in the supporting surface 151b ' of extension 15 ', wherein the one of cutting knife end
Individual side wall is slided along the sliding surface 151a ' of extension 15 '.
In the present embodiment, sliding surface 151a ' is arcwall face, is adapted with the shape of cutting knife.
In same guiding structural, by taking guiding structural 151 ' as an example, join Figure 11, guiding structural 151 '
Sliding surface 151a ' formation " L " shape structure is connected with supporting surface 151b '.
Preferably, referring to Figure 10, sliding surface 141a ', 151a ' are respectively cutting for the interior setting of nail bin 11 '
The two ends of the wherein side wall for leading cutter groove (referring to cutter groove slotted eye 11b ' positions are led in Figure 10) of knife
Extension plane, sliding surface 141a ', 151a ' and the two ends of the wherein side wall for leading cutter groove in other words
Extend planar shaped integral.
Referring to Figure 12, organize anti-overflow mechanism can also include being arranged on it is on anvil block, be maintained at tissue
Cut the stop part 212 ' between the two ends of packing ring 211 '.Specifically, in embodiment 3, stop part
212 ' are arranged on knife anvil 21 '.
In embodiment 3, organize anti-overflow mechanism to include two that are located at cutting packing ring 211 ' two ends respectively to stop
Block piece 212 ', two stop parts each have a stop surface 2120 ', two stop parts 212 ' only
Block face 2120 ' is oppositely disposed that (alternatively stop surface 2120 ' sets towards the center of cutting packing ring 211 '
Put), so as to tissue is maintained between two stop surfaces 2120 '.
As shown in figure 12, stop surface 2120 ' is an inclined plane, and it can be formed with cutting packing ring 211 '
Obtuse angle, that is to say, that stop surface 2120 ' can be formed more than 90 with plane where cutting packing ring 211 '
Dihedral angle of the degree less than 180 degree.Preferably, the inclined plane of stop surface 2120 extends distally to cutting
The place plane of packing ring 211.Preferably, stop part 212 ' is protrusion, from the proximally direction of knife anvil 21 '
Projection.Preferably, as shown in figure 12, stop part 212 ' substantially be in from distal end to near-end, cross section by
Decrescence small ridge projections part.Preferably, on the basis of the plane where cutting packing ring 211 ', stop part
The vertical height of 212 ' proximally direction projections does not influence the closure of apparatus.In the present embodiment, stop part
212 ' are arranged on knife anvil 21 '.In another embodiment of the present invention, stop surface 2120 ' can also
With cutting packing ring 211 ' shape dihedral angle at an acute angle or a right angle.
Stop part 212 ' is with a confined planes 212a '.When two extensions 14 ', 15 ' extend to anvil block
Knife anvil 21 ' when, positioned at confined planes 212a ' points of two stop parts 212 ' at cutting packing ring 211 ' two ends
It is not oppositely disposed with sliding surface 141a ', 151a ' so as to form two stopper slots 213 '；When cutting knife row
When proceeding to cutting packing ring 211 ', two ends of cutting knife are located in two stopper slots 213 ' respectively.Also
It is to say, during cutting knife marches to cutting packing ring 211 ' from nail bin 11 ', one of the end of cutting knife
Side is slided along sliding surface 141a ', 151a ', i.e., the side is subject to sliding surface 141a ', the limit of 151a '
Position；When cutting knife marches to cutting packing ring 211 ', another side of the end of cutting knife is subject to stop part
212 ' confined planes 212a's ' is spacing.
The knife anvil 21 ' of anvil block be provided with two respectively with two corresponding cooperation positions of extension 14 ', 15 '
214’、215’；Two cooperation positions 214 ', 215 ' respectively on the side at cutting packing ring 211 ' two ends, with
So that cutting knife alignment cuts packing ring 211 ' and marches in cutting packing ring 211 '；Stop part 212 ' is positioned at matching somebody with somebody
The inner side of position 214 ', 215 ' is closed with separating tissues and extension 14 ', 15 '.
Matching relationship on two extensions 14 ', 15 ' and nail bin 11 ' and knife anvil 21 ' and activated
Journey, referring specifically to the correlation narration in embodiment 1, will not be repeated here.
Likewise, being also provided with separating tissues and two on the distal face 11a ' of the nail bin 11 ' of embodiment 3
The separator of individual extension 14 ', 15 '.When operation anastomat is in closing position shown in Fig. 2, isolation
Part enters in two above-mentioned stopper slots 213 '.The related narration of specific ginseng embodiment 2, herein no longer
Repeat.
Likewise, the nail head of embodiment 3 can also design the anti-rotation for preventing extension 14 ', 15 ' from rotating
Structure.Anti-rotation structure can include the chute (not marked in figure) being arranged in nail bin 11 ', extension
14 ', 15 ' in the axial direction along slide, and chute prevents the radial rotating of extension 14 ', 15 '.Specifically
The related narration of ginseng embodiment 2, will not be repeated here.
In an alternate embodiment of embodiment 3, anti-overflow mechanism is organized only to include extension and its guiding
Structure, not including stop part etc..
It should be understood that, although the present specification is described in terms of embodiments, but not each implementation method
An independent technical scheme is only included, this narrating mode of specification is only for clarity, originally
Art personnel should be using specification an as entirety, and the technical scheme in each implementation method can also
Through appropriately combined, formed it will be appreciated by those skilled in the art that other embodiment.
The a series of detailed description of those listed above is only for feasibility implementation method of the invention
Illustrate, they simultaneously are not used to limit the scope of the invention, it is all without departing from skill of the present invention essence
The equivalent implementations or change that god is made should be included within the scope of the present invention.
Claims (9)
1. a kind of operation anastomat, it include instrument body, be arranged on the body proximal end handle portion and
The nail head of the body distal end is arranged on, wherein,
The nail head includes nail bin groupware, anvil block and organizes anti-overflow mechanism；
The nail bin groupware includes nail bin and the cutting knife being movably disposed in the nail bin；
The anvil block include positioned at the distal cartridge end knife anvil and nail anvil, the knife anvil be provided with it is described
The corresponding cutting packing ring of cutting knife；
The nail bin can be at one separately between position and the near position that connects relative to the anvil block
Carry out relative motion；
The cutting knife stretches out and marches to the cutting packing ring in which can activated from the nail bin；
The described anti-overflow mechanism of tissue includes being extended to from the nail bin two extensions of the anvil block, institute
Stating two extensions can keep therebetween tissue；Described two extensions it is each it is comfortable its with tissue
The relative inner side of contact is provided with a guiding structural along its length；
The guiding structural has a sliding surface and a supporting surface；The cutting knife have prolonged by proximate
Two ends stretched；Stretched out from the nail bin in the cutting knife and march to the process of the cutting packing ring
In, two ends of the cutting knife coordinate with the guiding structural of described two extensions respectively.
2. operation anastomat as claimed in claim 1, it is characterised in that：
The end of the cutting knife has an end face and two side walls, in the cutting knife from the nail bin
During stretching out and marching to the cutting packing ring, the end face of the end of the cutting knife is held in described
Supporting surface, and the end one of side wall along described two extensions sliding surface slide.
3. operation anastomat as claimed in claim 2, it is characterised in that：
In the guiding structural, the sliding surface is connected to form " L " shape structure with the supporting surface.
4. the operation anastomat as described in any one in claims 1 to 3, it is characterised in that：
The described anti-overflow mechanism of tissue also include being arranged on it is on the anvil block, make tissue be maintained at described to cut
Cut the stop part between the two ends of packing ring.
5. operation anastomat as claimed in claim 4, it is characterised in that：
The stop part has a confined planes, when described two extensions extend to the anvil block, institute
The confined planes stated are oppositely disposed so as to form a stopper slot with described sliding surface；When the cutting knife row
When proceeding to described cutting packing ring, described cutting knife is located in the stopper slot.
6. operation anastomat as claimed in claim 4, it is characterised in that：
The anvil block is provided with two cooperation positions corresponding with described two extensions respectively；It is described two
Cooperation position on the side at the cutting packing ring two ends, pad is cut to cause that the cutting knife alignment is described respectively
Enclose and march in the cutting packing ring；The stop part is located at the inner side of the cooperation position to isolate group
Knit and extension.
7. the operation anastomat as described in any one in claims 1 to 3, it is characterised in that：
The distal face of the nail bin is provided with the separator of separating tissues and two extensions.
8. the operation anastomat as described in any one in claims 1 to 3, it is characterised in that：
The nail head also includes preventing the anti-rotation structure of the extension radial rotating.
9. operation anastomat as claimed in claim 8, it is characterised in that：
The anti-rotation structure includes the chute being arranged in the nail bin, and the extension is in the axial direction along institute
Slide is stated, the chute prevents the radial rotating of the extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027744.3A CN106923881B (en) | 2015-12-31 | 2015-12-31 | A kind of operation anastomat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027744.3A CN106923881B (en) | 2015-12-31 | 2015-12-31 | A kind of operation anastomat |
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| CN106923881A true CN106923881A (en) | 2017-07-07 |
| CN106923881B CN106923881B (en) | 2019-07-02 |
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| CN201511027744.3A Active CN106923881B (en) | 2015-12-31 | 2015-12-31 | A kind of operation anastomat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113722A (en) * | 2017-12-21 | 2018-06-05 | 苏州英途康医疗科技有限公司 | Surgical operating instrument |
| CN108125697A (en) * | 2017-12-21 | 2018-06-08 | 苏州英途康医疗科技有限公司 | Surgical operating instrument |
| WO2023046033A1 (en) * | 2021-09-06 | 2023-03-30 | 江苏风和医疗器材股份有限公司 | Staple magazine assembly and surgical instrument |
| CN108113722B (en) * | 2017-12-21 | 2024-05-28 | 苏州英途康医疗科技有限公司 | Surgical instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001091646A1 (en) * | 2000-05-30 | 2001-12-06 | Ethicon Endo-Surgery (Europe) Gmbh | Surgical stapling instrument |
| CN1672646A (en) * | 2003-12-30 | 2005-09-28 | 伊西康内外科公司 | Slotted pins guiding knife in a curved cutter stapler |
| CN102228386A (en) * | 2010-09-16 | 2011-11-02 | 北京中法派尔特医疗设备有限公司 | Forceps opening assembly with guiding structure and stitching instrument adopting forceps opening assembly |
| CN102835982A (en) * | 2011-06-21 | 2012-12-26 | 伊西康内外科公司 | Linear stitching instrument with multifunctional retaining pin assembly |
| CN103908313A (en) * | 2012-12-29 | 2014-07-09 | 苏州天臣国际医疗科技有限公司 | Surgical operating instrument |
| CN205307033U (en) * | 2015-12-31 | 2016-06-15 | 苏州天臣国际医疗科技有限公司 | Operation anastomat |
-
2015
- 2015-12-31 CN CN201511027744.3A patent/CN106923881B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001091646A1 (en) * | 2000-05-30 | 2001-12-06 | Ethicon Endo-Surgery (Europe) Gmbh | Surgical stapling instrument |
| CN1672646A (en) * | 2003-12-30 | 2005-09-28 | 伊西康内外科公司 | Slotted pins guiding knife in a curved cutter stapler |
| CN102228386A (en) * | 2010-09-16 | 2011-11-02 | 北京中法派尔特医疗设备有限公司 | Forceps opening assembly with guiding structure and stitching instrument adopting forceps opening assembly |
| CN102835982A (en) * | 2011-06-21 | 2012-12-26 | 伊西康内外科公司 | Linear stitching instrument with multifunctional retaining pin assembly |
| CN103908313A (en) * | 2012-12-29 | 2014-07-09 | 苏州天臣国际医疗科技有限公司 | Surgical operating instrument |
| CN205307033U (en) * | 2015-12-31 | 2016-06-15 | 苏州天臣国际医疗科技有限公司 | Operation anastomat |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113722A (en) * | 2017-12-21 | 2018-06-05 | 苏州英途康医疗科技有限公司 | Surgical operating instrument |
| CN108125697A (en) * | 2017-12-21 | 2018-06-08 | 苏州英途康医疗科技有限公司 | Surgical operating instrument |
| CN108113722B (en) * | 2017-12-21 | 2024-05-28 | 苏州英途康医疗科技有限公司 | Surgical instrument |
| CN108125697B (en) * | 2017-12-21 | 2024-05-31 | 苏州英途康医疗科技有限公司 | Surgical instrument |
| WO2023046033A1 (en) * | 2021-09-06 | 2023-03-30 | 江苏风和医疗器材股份有限公司 | Staple magazine assembly and surgical instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106923881B (en) | 2019-07-02 |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |