CN109662744A - Stapler - Google Patents
Stapler Download PDFInfo
- Publication number
- CN109662744A CN109662744A CN201811641013.1A CN201811641013A CN109662744A CN 109662744 A CN109662744 A CN 109662744A CN 201811641013 A CN201811641013 A CN 201811641013A CN 109662744 A CN109662744 A CN 109662744A
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- China
- Prior art keywords
- ejector pin
- frame
- pushing
- nail bin
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010304 firing Methods 0.000 claims abstract description 47
- 238000009527 percussion Methods 0.000 claims abstract description 16
- 230000003872 anastomosis Effects 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 8
- 238000000429 assembly Methods 0.000 claims abstract description 8
- 210000003734 kidney Anatomy 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 11
- 230000008093 supporting effect Effects 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 210000000056 organ Anatomy 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07271—Stapler heads characterised by its cartridge
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
- A61B2017/07214—Stapler heads
- A61B2017/07285—Stapler heads characterised by its cutter
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of staplers, comprising: ejector pin firing lock and cutter firing lock.Ejector pin firing lock includes nail bin frame, two groups of ejector pin block assemblies in nail bin frame and suitable for pushing two groups of ejector pin block assemblies to mobile a pair of of the pushing block to release anastomosis staple from nail slot in nail slot direction, and the percussion component suitable for firing pushing block respectively.Cutter firing lock includes in the push broach body being equipped in nail bin frame handle portion inner cavity, the cutter being connected with push broach body, and the pushing component suitable for pushing push blade.
Description
Technical field
The present invention relates to the field of medical instrument technology more particularly to a kind of staplers.
Background technique
Various surgical linear Endo-GIAs be used to replace in ophthalmic surgical using the unarmed anastomosis procedure of needlework, by
It is widely used in human body alimentary canal organ, respiratory tract organ and apparatus urogenitalis official rank organ and tissue.
For widely used stapler in the prior art, such as the surgical linear of Publication No. CN103169515A
The firing lock of the firing lock patent disclosure of Endo-GIA includes that push button, sliding block, push rod, ejector pin are tiltedly carved and cutter, because
This, which is the promotion operation realized by push button for push nails and cutter, for push button,
The force of the hand of operator is required during operation it is bigger, and usually thumb motive force it is limited, use
Process and its inconvenience.In addition the percussion of cutter and push nails is not separated by this structure of setting, meeting when operating firing lock
Fire push nails and cutter simultaneously, the operation of this side joining edge cutting, it is bad to may cause tissue sewing effect, or even meeting
There is the phenomenon that bleeding.
Summary of the invention
The object of the present invention is to provide a kind of staplers, to solve to realize individually nail pushing structure and cutting structure respectively
The technical issues of firing control.
Stapler of the invention is achieved in that
A kind of stapler, comprising:
Ejector pin firing lock, the ejector pin firing lock include nail bin frame, two groups of push nails in the nail bin frame
Component and suitable for pushing two groups of ejector pin block assemblies to push away to nail slot direction is mobile with a pair for releasing anastomosis staple from nail slot respectively
Motion block, and the percussion component suitable for firing pushing block；And
Cutter firing lock, the cutter firing lock include in the push broach being equipped in nail bin frame handle portion inner cavity
Body, the cutter being connected with the push broach body, and the pushing component suitable for pushing the push blade.
In preferred embodiments of the present invention, the percussion component includes the waist symmetrically opened up on a pair of pushing block
Shape hole unit, also cross the fixed link in the kidney slot on a pair of pushing block, and suitable for supporting to push away described in pushing
The power unit that motion block slides along fixed link；Wherein
The axial ends of the fixed link and the nail bin frame are connected；The kidney slot deviates from relative to the pushing block to be pushed away
The bottom end of nail block assembly is obliquely installed.
In preferred embodiments of the present invention, the pushing component includes opening up on the nail bin frame handle portion side wall
Sliding slot, suitable for slider that is being slid along the sliding slot and being located at outside the nail bin frame side wall, and be connected with the slider
And it is located at the sliding shoe in the nail bin frame handle portion inner cavity；And
It is equipped with the first wedge block towards one end of push broach body in the sliding shoe, in the push broach body towards the one of sliding shoe
End, which is equipped with, to be suitable for cooperating the second wedge block abutted with the first wedge block.
In preferred embodiments of the present invention, the cutter firing lock further includes in the nail bin frame handle portion inner cavity
In be equipped with one be suitable for the push broach body pass through cross knife rest；
Described cross in knife rest was equipped with cutter groove, and was equipped with one in the cutter groove mouth of crossing in the top crossbearer for crossing knife rest
Crossbeam, the crossbeam are adapted to abut against half arc block plate on the push broach body.
In preferred embodiments of the present invention, the kidney slot unit includes at least two kidney-shapeds opened up on pushing block
Hole, and at least two kidney slot deviates from the inclined direction and tilt angle of the bottom end of ejector pin block assembly relative to pushing block
It is all the same；
The both ends of pushing block length direction are arranged in the kidney slot.
In preferred embodiments of the present invention, the power unit includes the thrust frame that the pushing block is supported in one end, with
And it is connected with the thrust frame to pull the hand handle of the thrust frame；
The thrust frame is hinged and connected by articulated shaft and clamp hook, and the articulated shaft is located at thrust frame and supports promotion respectively
Among the end of block and the end of connection hand handle, it is suitable for when pulling thrust frame by hand handle, under the action of articulated shaft, thrust
Frame realizes the promotion for pushing frame.
In preferred embodiments of the present invention, the power unit further includes the bullet being clamped between thrust frame and clamp hook
Property safety piece；
The elasticity safety piece includes base portion and a pair of of wing for being integrally connected with one end and the base portion；Described in a pair
Short slot is formed between wing, the short slot forms along the length direction extension of wing with the other end in a pair of of wing scarce
Mouthful；
One of wing in a pair of of wing abuts the thrust frame, and another wing abuts clamp hook.
In preferred embodiments of the present invention, the ejector pin block assembly includes along several push nails arranged in a straight line；
The push nails include shift to install two for pushing the ejector pin portion of anastomosis staple, and two ejector pin portions it
Between the interconnecting piece that is equipped with；The pushing block is suitable for while supporting the corresponding company of several push nails that ejector pin block assembly includes
Socket part.
In preferred embodiments of the present invention, the cutter firing lock further includes the back in the nail bin frame handle portion
The metal clips that bottom from nail anvil frame is equipped with；
The metal clips includes the matrix being plugged on the nail bin frame handle portion bottom, and integrated with described matrix
Molding and the wing body bent relative to matrix towards nail anvil frame；
The wing body, which protrudes into, abuts push broach body in the inner cavity of the nail bin frame handle portion.
In preferred embodiments of the present invention, the pushing component further includes set on the nail bin frame handle portion and is suitable for
With the fastener of sliding shoe clamping；
The fastener includes the our department being hinged and connected with the nail bin frame handle portion, and is integrally connected with the ontology
And be suitable for the plug division that is partially received into the sliding shoe；
The jack suitable for plug division insertion is offered on the sliding shoe, and is integrally formed in the inner wall of jack suitable
In the trigger unit for abutting the plug division, when the trigger unit supports the plug division, described our department is adapted to described
Nail bin frame handle portion rotation, so that plug division and jack are detached from.
Using above-mentioned technical proposal, the invention has the following advantages: stapler of the invention, cutter percussion lock
Structure and ejector pin firing lock are two relatively independent firing locks, are in percussion cutter work respectively and ejector pin work each other
It does not interfere with each other, it is easy to operate.
The cutter firing lock of design, the impetus for push broach body is realized by pushing component, and then in push broach
Under the transmitting effect of body, complete to realize that cutter enter cutting region and cut tissue.
The percussion component of design is used to individually implement the percussion for anastomosis staple, specifically drives pushing block by power unit
The mobile trend of the horizontal direction relative to ejector pin block assembly is generated, but since fixed link and kidney slot are for the work of pushing block
With so that power unit is driven the movement of the lower horizontal direction occurred to become by pushing block around fixed link along the track of kidney slot
Gesture is converted into the motive force of the vertical direction for ejector pin block assembly, so that push nails release anastomosis staple from nail slot.
Percussion component of the invention is only used alone to percussion anastomosis staple, will not influence the cutter of stapler in operation
Percussion, therefore operability it is more flexible.Further, the handle structure that the power unit of percussion component of the invention uses,
So that human body when operating the power unit, can hold with hand-to-hand grip handle directly with respect to the direct hand of clamp hook, make to go smoothly
Towards the movement of clamp hook side, make so that the promotion for pushing block may be implemented in the thrust frame being connected with hand handle
With thumb compared to the prior art pushes, and has apparent force easily, easy to operate superiority.
Further, by the elastic safety piece being equipped between thrust frame and clamp hook, for realizing for thrust frame
The switching of motion control when pulling thrust frame by hand handle, needs to apply hand handle due to being formed with short slot between a pair of of wing
Add certain pressure, so that the short slot between a pair of of wing is gradually tightened, i.e., a pair of of wing moves closer to, and could make thrust
Frame generates the promotion effect for pushing block.Under normal circumstances, when not needing so that thrust frame moves, even if hand encounters hand
Under the premise of certain pressure, thrust frame will not generate the promotion effect for pushing block, therefore it is possible to prevente effectively from accidentally
The problem of operation.And elastic safety piece realizes the work for switching hand handle using the deformation of elastic safety piece using short slot
Mode, it is swift to operate efficient, it does not need constantly to disassemble and install elastic safety piece, can fall to avoid elastic safety piece
The problem of falling and forgeing generation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of stapler of the invention；
Fig. 2 is the overall structure diagram of the cutter firing lock of stapler of the invention；
Fig. 3 is the partial structural diagram of the cutter firing lock of stapler of the invention；
Fig. 4 is the structural schematic diagram for crossing knife rest of the cutter firing lock of stapler of the invention；
Fig. 5 is the structural schematic diagram of the metal clips of the cutter firing lock of stapler of the invention；
Fig. 6 is the structural schematic diagram of the fastener of the cutter firing lock of stapler of the invention；
Fig. 7 is the overall structure diagram of the ejector pin firing lock of stapler of the invention；
Fig. 8 is the partial structural diagram one of the ejector pin firing lock of stapler of the invention；
Fig. 9 is the partial structural diagram two of the ejector pin firing lock of stapler of the invention；
Figure 10 is the structural schematic diagram of the limit loose slot of the ejector pin firing lock of stapler of the invention；
Figure 11 is the overall structure diagram of the push nails of the ejector pin firing lock of stapler of the invention；
Figure 12 is the overall structure diagram of the pushing block of the ejector pin firing lock of stapler of the invention.
In figure: nail bin frame 101, ejector pin portion 105, interconnecting piece 106, pushing block 107, limit loose slot 108, spacing block 109,
Fixed link 110, internal frame body 113, external frame body 115, thrust frame 116, hand handle 117, Anti-slip cover 118, clamps kidney slot 112
Hook 119, articulated shaft 120, base portion 121, wing 122, short slot 123, notch 124, the first flat contact surface 125, second is flat connects
Contacting surface 126, push broach body 201, cutter 202, sliding slot 203, half arc block plate 204, slider 205, the 207, first wedge shape of sliding shoe
Block 208, the second wedge block 209 cross knife rest 210, cross cutter groove 211, crossbeam 213, matrix 215, wing body 216, socket 217, our department
218, plug division 219, jack 220, trigger unit 221, nail anvil frame 223.
Specific embodiment
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
Embodiment 1:
1 is please referred to shown in Figure 12, present embodiments providing a kind of stapler, comprising: make ejector pin for firing ejector pin
The ejector pin firing lock released from nail slot, and cut tissue to cutting region for firing the operation of cutter 202
The cutter firing lock cut.
Ejector pin firing lock includes nail bin frame 101, two groups of ejector pin block assemblies in nail bin frame 101 and suitable for pushing away respectively
Dynamic two groups of ejector pin block assemblies are to mobile a pair of of the pushing block 107 to release anastomosis staple from nail slot in nail slot direction, and are suitable for
Fire the percussion component of pushing block 107.
Cutter firing lock, cutter firing lock include in the push broach being equipped in 101 handle portion inner cavity of nail bin frame
Body 201, the cutter 202 being connected with push broach body 201, and the pushing component suitable for pushing push blade.
Two groups of ejector pin block assemblies in the present embodiment are conventional technical means, and this embodiment is not repeated.Since there are two
Group ejector pin block assembly, therefore, corresponding, pushing block 107 is also configured as a pair, so that a pushing block in a pair of of pushing block 107
107 push one group of ejector pin block assembly, and another pushing block 107 then pushes another group of ejector pin block assembly.
Specifically, ejector pin block assembly includes along several push nails arranged in a straight line；Push nails include two shifted to install
A ejector pin portion 105 for being used to push anastomosis staple, and the interconnecting piece 106 being equipped between two ejector pin portions 105；Pushing block 107
Suitable for supporting the corresponding interconnecting piece 106 of several push nails that ejector pin block assembly includes simultaneously.
In order to limit motion profile of the pushing block 107 during pushing ejector pin block assembly, it is ensured that pushing block 107 for
The ejector pin effect of ejector pin block assembly, it is internal in nail bin frame 101 to be equipped with two limits for being respectively used to limit a pair of of pushing block 107
Loose slot 108.Limiting loose slot 108 is formed by the spacing block 109 of the inside with 101 integral structure of nail bin frame.
Percussion component includes the kidney slot Unit 112 symmetrically opened up on a pair of of pushing block 107, also cross a pair of promotion
The fixed link 110 in kidney slot 112 on block 107, and suitable for supporting to push pushing block 107 to slide along fixed link 110
Power unit；Wherein the axial ends of fixed link 110 and nail bin frame 101 are connected；Kidney slot 112 is carried on the back relative to pushing block 107
Bottom end from ejector pin block assembly is obliquely installed.In order to guarantee the fiting effect of fixed link 110 Yu kidney slot 112, the present embodiment
In kidney slot 112 the width in hole and the outer diameter of fixed link 110 agree with matching, and the length of kidney slot 112 herein is then
It is needed mobile distance to design when pushing anastomosis staple push nail slot according to ejector pin block assembly, herein, is driven by power unit
Pushing block 107 generates the mobile trend of the horizontal direction relative to ejector pin block assembly, but due to fixed link 110 and kidney slot
112 effect for pushing block 107 so that pushing block 107 around fixed link 110 along the track of kidney slot 112 by power list
The mobile trend of the lower horizontal direction occurred of member driving is converted into the motive force of the vertical direction for ejector pin block assembly, and then makes
It obtains push nails and releases anastomosis staple from nail slot.
Herein it should be noted that including the inside frame body 113 that is used cooperatively for the nail bin frame 101 of the present embodiment and outer
Portion's frame body 115, wherein ejector pin block assembly and pushing block 107 are set to the internal frame body 113, and fixed link 110 is then across interior
Portion's frame body 113 and external frame body 115 are connected, and realize the fixation of the axis for fixed link 110, prevent fixed link 110 from moving
Position phenomenon.
In order to improve the stability of moving condition under the action of power unit of pushing block 107, kidney slot Unit 112 includes
At least two kidney slots 112 opened up on pushing block 107, and at least two kidney slots 112 relative to pushing block 107 away from pushing away
Inclined direction and the tilt angle for following closely the bottom end of block assembly are all the same；107 length direction of pushing block is arranged in kidney slot 112
Both ends.The present embodiment attached drawing is only by taking two kidney slots 112 as an example.Herein, optionally, kidney slot 112 deviates from pushing block 107
It is 45 °~60 ° that the bottom end of ejector pin block assembly, which is formed by angle,.Herein for it will be readily appreciated by those skilled in the art that
The Different Effects for the angle that kidney slot 112 and pushing block 107 are formed by away from the bottom end of ejector pin block assembly are to pushing block 107
For the actuating length of ejector pin block assembly, therefore, the range of angle herein is coincide according to the stapler of different size model
The moving distance of nail calculates corresponding angle.
Again specifically, pushing component includes the sliding slot 203 opened up on 101 handle portion side wall of nail bin frame, is suitable for along cunning
Slider 205 that is that slot 203 slides and being located at outside 101 side wall of nail bin frame, and be connected with slider 205 and positioned at nail bin frame 101
Sliding shoe 207 in handle portion inner cavity；And it is equipped with the first wedge block 208 towards one end of push broach body 201 in sliding shoe 207,
It is equipped in push broach body 201 towards one end of sliding shoe 207 and is suitable for cooperating the second wedge block 209 abutted with the first wedge block 208.
When applying thrust to slider 205 by hand, so that slider 205 is mobile towards 201 side of push broach body, when sliding shoe 207 connects
The second wedge block 209 that the first wedge block 208 and 201 one end of push broach body being connected when nearly push broach body 201 with slider 205 are equipped with
It is coupled, under such structure, with continuing to move to for sliding shoe 207, push broach body 201 is pushed by sliding shoe 207, is realized towards cutting
202 side of knife is mobile, so that cutter 202 are mobile to cutting region under the action of push broach body 201, and arrives in cutter 202
Up to after cutting region, with the lasting propulsion of sliding shoe 207, cutter 202 are implemented to cut to tissue.
The cutter firing lock of the present embodiment design further includes being equipped with one in 101 handle portion inner cavity of nail bin frame to be suitable for pushing away
What cutter hub 201 passed through crosses knife rest 210；It crosses in knife rest 210 and was equipped with cutter groove 211, and crossing the top crossbearer of knife rest 210 in mistake
211 mouthfuls of cutter groove are equipped with a crossbeam 213, and crossbeam 213 is adapted to abut against half arc block plate 204 on push broach body 201.It needs to illustrate at this time
, for the push broach body 201 and cutter 202 of the present embodiment, half arc is equipped between push broach body 201 and cutter 202
Baffle 204, half arc block plate 204 are raised in the setting of push broach body 201, the state not pushed to push broach body 201 under normality
Under, half arc block plate 204 is captured between crossbeam 213 towards the side for shifting body onto, but due to half arc block plate 204 and crossbeam 213
The face of contact is half arcuate structure, and after the thrust that sliding shoe 207 is received for push broach body 201, half arc block plate 204 can at this time
To be moved down relative to crossbeam 213, so that half arc block plate 204 is gradually passed through from the lower section of crossbeam 213, in this way, in crossbeam
213 and half the resistance that is formed between arc block plate 204 can disappear, cutter 202 are under the action of sliding shoe 207, Ke Yichi
It is continuous to be promoted towards cutting region.It follows that 204 primarily function of crossbeam 213 and half arc block plate of the present embodiment design
It is in the progradation of cutter 202, plays for one " obstacle " in the propulsion of cutter 202, it should " obstacle " needs pair
Apply certain thrust in slider 205, can just make sliding shoe 207 with enough thrust to push cutter 202 mobile,
So above-mentioned design is based on, in operative process, even if there is maloperation slider 205, as long as applying for slider 205
Thrust it is inadequate, can not just cross above-mentioned " obstacle " smoothly implement cutter 202 propulsion, for cutter 202 work rise
It is acted on to one " insurance ".
Then, for above-mentioned " obstacle " structure, it is also necessary to which special instruction is crossing cutting in cutter groove 211 for inlay card
It is that there is certain down suction between the bottom of cutter 202 and push broach body 201 and the slot bottom for crossing cutter groove 211, i.e. cutter 202
The slot bottom of cutter groove 211 was not directly contacted with the bottom of push broach body 201, the meaning designed in this way is so that push broach body 201 exists
Under the motive force effect of sliding shoe 207, half arc block plate 204 can use above-mentioned down suction, across the lower section of crossbeam 213,
So that push broach body 201 is smoothly through crossbeam 213, crossbeam 213 is released for the resistance of push broach body 201.So in cutter
202 and push broach body 201 bottom and cross cutter groove 211 slot bottom between down suction be guarantee " obstacle " reasonable structure base
This requirement.For this purpose, the cutter firing lock of the present embodiment further includes in 101 handle portion of nail bin frame away from nail anvil frame 223
The metal clips that bottom is equipped with；Metal clips includes the matrix 215 being plugged on 101 handle portion bottom of nail bin frame, and and base
The wing body 216 that body 215 is integrally formed and bends relative to matrix 215 towards nail anvil frame 223；Wing body 216 protrudes into 101 hand of nail bin frame
Push broach body 201 is abutted in the inner cavity of shank.Metal clips herein uses the metal material with certain rigidity and elasticity to be made,
The clamping of the matrix 215 of metal clips and 101 handle portion of nail bin frame is connected, and matrix 215 at this time is interior with 101 handle portion of nail bin frame
Cavity wall is in parallel relation, and optional such as, but not limited to 45 is formed between collective relative to the wing body 216 that matrix 215 is bent
Spend angle, so that wing body 216 is supported after protruding into 101 handle portion inner cavity of nail bin frame in the bottom of push broach body 201, is formed
For the supporting role of the bottom of push broach body 201, since push broach body 201 and cutter 202 are integrally connected, so that wing body
216 can form the bottom supporting effect whole for cutter 202 and push broach body 201, under the support effects, so that cutting
Knife 202 and push broach body 201 can form vertical gap relative between the slot bottom for crossing cutter groove 211.And it is further, in order to
Wing body 216 is effectively ensured for the support effects of 201 bottom of push broach body, is opened in the bottom face that push broach body 201 is contacted with wing body 216
Equipped with the socket 217 of the inclination insertion of wing body 216 is suitable for, in this way, making wing body 216 for the supporting role not office of push broach body 201
It is limited to the bearing of one " point ", but the bearing in one " face ", the bearing in " face " combines crossbeam 213 and half arc block plate 204
Abutting can ensure that push broach body 201 is steadily present in the inner cavity of 101 handle portion of nail bin frame before being pushed by sliding shoe 207
In.And when sliding shoe 207 applies thrust for push broach body 201, the alar part of metal clips can be pressed down deformation, therefore, this
When metal clips will not constitute obstacle in 201 moving process of push broach body.
Again specifically, the power unit that the present embodiment uses includes the thrust frame 116 that pushing block 107 is supported in one end, and
It is connected with thrust frame 116 to pull the hand handle 117 of the thrust frame 116；Hand handle 117 herein can be and 116 one of thrust frame
Structure, is also possible to separate structure, and the present embodiment only by taking integral structure as an example, can also be set with Anti-slip cover on the outside of hand handle 117
118, improve comfort level when hand holds hand handle 117.
It being operated in this way about thrust frame 116, thrust frame 116 is hinged and connected by articulated shaft 120 with clamp hook 119,
Articulated shaft 120 is located at thrust frame 116 and is supported among the end of pushing block 107 and the end of connection hand handle 117 respectively, is suitable for when logical
When crossing the pulling thrust frame 116 of hand handle 117, under the action of articulated shaft 120, thrust frame 116 realizes the promotion for pushing frame.Tool
The thrust frame 116 of body is rotated around articulated shaft 120, so that generating supporting for pushing block 107 with the part that pushing block 107 is supported
Pushing action is used.
It is to be fixed in this way relative to 101 handle portion of nail bin frame to slider 205 in this present embodiment, is maintained at and does not use
When slider 205, slider 205 can keep the opposite stationary state with 101 handle portion of nail bin frame, in 101 handle portion of nail bin frame
A fastener for being suitable for being clamped with sliding shoe 207 is equipped between sliding shoe 207.Specifically, fastener includes and nail bin frame 101
Our department 218 that handle portion is hinged and connected, and be integrally connected with ontology and be suitable for be partially received into sliding shoe 207 insert
Socket part 219；The jack 220 being inserted into suitable for plug division 219 is offered on sliding shoe 207, and is integrally set in the inner wall of jack 220
There is the trigger unit 221 for being adapted to abut against plug division 219, when trigger unit 221 supports plug division 219, our department 218 is adapted to follow closely
101 handle portion of storehouse frame rotation, so that plug division 219 and jack 220 are detached from.I.e. when not applying thrust to slider 205, only
219 inlay card of plug division of latch fitting in the jack 220 of sliding shoe 207, at this point, the trigger unit 221 of 220 inner wall of jack be connected to it is slotting
In socket part 219, when applying thrust to slider 205, trigger unit 221 forms motive force for plug division 219, and plug division 219 exists
Under the impetus of trigger unit 221, articulated shaft that fastener is equipped between 101 handle portion of ontology and nail bin frame
230 rotations, with the rotation of ontology, plug division 219 is gradually detached from from jack 220, releases the obstruction for sliding shoe 207
Power, and in above process, it is also desirable to apply certain thrust for slider 205, plug division 219 could be made from jack
It is detached from 220, so, in the course of surgery, when generally touching slider 205, the running of slider 205 will not be triggered.
Embodiment 2:
On the basis of the stapler of embodiment 1, stapler provided in this embodiment further includes an elastic safety piece.
It is right since the hand handle 117 of the present embodiment is to hold the generation of hand handle 117 by hand for the pinching power of hand handle 117
For operative process, a possibility that inevitable hand is likely to occur maloperation hand handle 117, based in response to the above problems
The considerations of, occur the dislocation for pushing block 107 after avoiding hand handle 117 from accidentally being touched and fire, the present embodiment devises one for cutting
The firing control structure for changing pushing block 107 is specifically included in the elastic safety piece being clamped between thrust frame 116 and clamp hook 119.
Specifically, elastic safety piece includes base portion 121 and a pair of of wing 122 for being integrally connected with one end and base portion 121；?
Short slot 123 is formed between a pair of of wing 122, short slot 123 extends along the length direction of wing 122 in a pair of of wing 122
The other end formed notch 124；The abutting thrust frame 116 of one of wing 122 in a pair of of wing 122, and another wing
122 abut clamp hook 119.Elastic safety piece herein uses the metal material with certain stiffness to be made, and elasticity herein is protected
" elasticity " of dangerous part is realized by the short slot 123 in a pair of of wing 122, under normality, when the feelings not exerted a force to hand handle 117
Under condition, a pair of of wing 122 of elastic safety piece supports thrust frame 116 and clamp hook 119 respectively, pulls thrust by hand handle 117
When frame 116, need to apply hand handle 117 certain pressure, so that the short slot 123 between a pair of of wing 122 is gradually tightened,
I.e. a pair of of wing 122 moves closer to, and thrust frame 116 could be made to generate the promotion effect for pushing block 107.In ordinary circumstance
Under, when not needing so that thrust frame 116 moves, even if hand encounters hand handle 117, under the premise of certain pressure, thrust frame
116 will not generate the promotion effect for pushing block 107, therefore it is possible to prevente effectively from the problem of maloperation.And elasticity insurance
Part realizes the operating mode for switching hand handle 117 using the deformation of elastic safety piece, height swift to operate using short slot 123
Effect, does not need the problem of constantly disassembling and installing for elastic safety piece, can falling and forget to avoid elastic safety piece
It generates.
In order to reduce during pinching hand handle 117, occur opposite sliding between elastic safety piece and hand handle 117,
The pinching effect of hand handle 117 is influenced, the side wall of the wing 122 abutted with thrust frame 116 is equipped with 125 face of the first flat；With
And the side wall of the wing 122 abutted with clamp hook 119 is equipped with the second flat contact surface 126.First flat, 125 face and second
For flat contact surface 126 for arc contact surface, contact effect is more reliable and more stable.
Above specific embodiment has carried out further specifically the purpose of the present invention, technical scheme and beneficial effects
It is bright, it should be understood that be not intended to restrict the invention the above is only specific embodiments of the present invention, it is all in the present invention
Spirit and principle within, any modification, equivalent substitution, improvement and etc. done, should be included in protection scope of the present invention it
It is interior.
In the description of the present invention, it is to be understood that, indicating position or the term of positional relationship are based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the mechanism of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Directly contacted including the first and second features, also may include the first and second features be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right above sign and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of first feature horizontal height
Less than second feature.
Claims (10)
1. a kind of stapler characterized by comprising
Ejector pin firing lock, the ejector pin firing lock include nail bin frame, two groups of ejector pin block assemblies in the nail bin frame
Be suitable for pushing respectively two groups of ejector pin block assemblies to mobile a pair of of the pushing block to release anastomosis staple from nail slot in nail slot direction,
And the percussion component suitable for firing pushing block；And
Cutter firing lock, the cutter firing lock include the push broach body being equipped in nail bin frame handle portion inner cavity,
The cutter being connected with the push broach body, and the pushing component suitable for pushing the push blade.
2. stapler according to claim 1, which is characterized in that the percussion component includes on a pair of pushing block
The kidney slot unit that symmetrically opens up, also cross the fixed link in the kidney slot on a pair of pushing block, and suitable for supporting
With the power unit for pushing the pushing block to slide along fixed link；Wherein
The axial ends of the fixed link and the nail bin frame are connected；The kidney slot deviates from push nails relative to the pushing block
The bottom end of component is obliquely installed.
3. according to claim 1 or 2 described in any item staplers ejector pin mechanisms, which is characterized in that the pushing component packet
Include the sliding slot opened up on the nail bin frame handle portion side wall, suitable for it is being slid along the sliding slot and be located at nail bin frame side
Slider outside wall, and sliding shoe that is being connected with the slider and being located in the nail bin frame handle portion inner cavity；And
It is equipped with the first wedge block towards one end of push broach body in the sliding shoe, is set in one end of push broach body towards the sliding shoe
Have and is suitable for cooperating the second wedge block abutted with the first wedge block.
4. stapler according to claim 1 ejector pin mechanism, which is characterized in that the cutter firing lock further includes
It is equipped with one in the nail bin frame handle portion inner cavity and crosses knife rest suitable for what the push broach body passed through；
Described cross in knife rest was equipped with cutter groove, and was equipped with a cross in the cutter groove mouth of crossing in the top crossbearer for crossing knife rest
Beam, the crossbeam are adapted to abut against half arc block plate on the push broach body.
5. stapler according to claim 2 ejector pin mechanism, which is characterized in that the kidney slot unit is included in promotion
At least two kidney slots opened up on block, and at least two kidney slot deviates from the bottom end of ejector pin block assembly relative to pushing block
The inclined direction and tilt angle in portion are all the same；
The both ends of pushing block length direction are arranged in the kidney slot.
6. stapler according to claim 2 ejector pin mechanism, which is characterized in that the power unit includes that one end is supported
The thrust frame of the pushing block, and be connected with the thrust frame to pull the hand handle of the thrust frame；
The thrust frame is hinged and connected by articulated shaft and clamp hook, and the articulated shaft is located at thrust frame and supports pushing block respectively
Among end and the end of connection hand handle, it is suitable for when pulling thrust frame by hand handle, under the action of articulated shaft, thrust frame is real
Referring now to the promotion of pushing frame.
7. stapler according to claim 6 ejector pin mechanism, which is characterized in that the power unit further includes in thrust
The elastic safety piece being clamped between frame and clamp hook；
The elasticity safety piece includes base portion and a pair of of wing for being integrally connected with one end and the base portion；In a pair of wing
Between be formed with short slot, the short slot extends along the length direction of wing to form notch in the other end of a pair of of wing；
One of wing in a pair of of wing abuts the thrust frame, and another wing abuts clamp hook.
8. stapler according to claim 2 ejector pin mechanism, which is characterized in that the ejector pin block assembly includes along straight line
Several push nails of arrangement；
The push nails include that two shifted to install are used to push the ejector pin portion of anastomosis staple, and set between two ejector pin portions
Some interconnecting pieces；The pushing block is suitable for while supporting the corresponding connection of several push nails that ejector pin block assembly includes
Portion.
9. stapler according to claim 1 ejector pin mechanism, which is characterized in that the cutter firing lock further includes
In the metal clips of the nail bin frame handle portion being equipped with away from the bottom of nail anvil frame；
The metal clips includes the matrix being plugged on the nail bin frame handle portion bottom, and is integrally formed with described matrix
And the wing body bent relative to matrix towards nail anvil frame；
The wing body, which protrudes into, abuts push broach body in the inner cavity of the nail bin frame handle portion.
10. stapler according to claim 3 ejector pin mechanism, which is characterized in that the pushing component further includes being set to
The nail bin frame handle portion and be suitable for the fastener that is clamped with the sliding shoe；
The fastener includes the our department being hinged and connected with the nail bin frame handle portion, and be integrally connected with the ontology and
Suitable for the plug division being partially received into the sliding shoe；
The jack suitable for plug division insertion is offered on the sliding shoe, and is integrally formed in the inner wall of jack and is suitable for supporting
The trigger unit for connecing the plug division, when the trigger unit supports the plug division, described our department is adapted to the nail bin
Frame handle portion rotation, so that plug division and jack are detached from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641013.1A CN109662744B (en) | 2018-12-29 | 2018-12-29 | Anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641013.1A CN109662744B (en) | 2018-12-29 | 2018-12-29 | Anastomat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109662744A true CN109662744A (en) | 2019-04-23 |
| CN109662744B CN109662744B (en) | 2024-05-10 |
Family
ID=66146682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811641013.1A Active CN109662744B (en) | 2018-12-29 | 2018-12-29 | Anastomat |
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| Country | Link |
|---|---|
| CN (1) | CN109662744B (en) |
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| CN110464400A (en) * | 2019-08-06 | 2019-11-19 | 安徽麦吉恩医疗科技有限公司 | Intracavitary Endo-GIA and its tong head |
| CN110664449A (en) * | 2019-11-05 | 2020-01-10 | 江苏省肿瘤医院 | Cutting stitching instrument suitable for minimally invasive surgery |
| CN113367754A (en) * | 2021-07-10 | 2021-09-10 | 江苏康赛医疗器械科技有限公司 | Linear cutting anastomat with safety assembly |
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| CN110664449B (en) * | 2019-11-05 | 2023-08-11 | 江苏省肿瘤医院 | Cutting stitching instrument suitable for minimally invasive surgery |
| CN113367754A (en) * | 2021-07-10 | 2021-09-10 | 江苏康赛医疗器械科技有限公司 | Linear cutting anastomat with safety assembly |
| CN113367754B (en) * | 2021-07-10 | 2024-01-16 | 江苏康赛医疗器械科技有限公司 | Linear cutting anastomat with safety component |
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|---|---|
| CN109662744B (en) | 2024-05-10 |
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