CN105411641A - Anastomat - Google Patents
Anastomat Download PDFInfo
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- CN105411641A CN105411641A CN201510975916.3A CN201510975916A CN105411641A CN 105411641 A CN105411641 A CN 105411641A CN 201510975916 A CN201510975916 A CN 201510975916A CN 105411641 A CN105411641 A CN 105411641A
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- Prior art keywords
- shaft
- closed
- percussion
- main shaft
- anastomat
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1132—End-to-end connections
Abstract
The invention relates to an anastomat. The anastomat comprises an outer sleeve, an input shaft, a closing main shaft, a closing shaft slide block, a closing and opening push piece, a cocking main shaft, a cocking shaft slide block, a nail push device, a switch mechanism, a pressure sensor and a closing limiting switch which are matched and connected with one another. Compared with a traditional anastomat, dual safety is achieved through high closing control of a pressure sensor and the closing limiting switch, and tissue squeezing can be located within a reasonable nail forming range.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of anastomat.
Background technology
A kind of medical apparatus and instruments that Medical stapler often uses when being and performing surgical operation to digestion living according to principles for self-cultivation reason tissue, in general surgery treatment, anastomat has often been used to the cutting closure function of tissue.The operation principle of anastomat is for be placed between nail bin and nail anvil head by tissue, by the distance between adjustment nail bin and nail anvil head, tissue is rationally squeezed, pull the trigger when distance between nail bin and nail anvil head reaches the safety range effectively sewed up, U-shaped staple is compressed into B shape sew up tissue, thin vessels can through ensureing that the blood of anastomotic stoma and remote organization supplies in the space of B shape staple.
Traditional anastomat adopts pure mechanical system to realize the closed action between nail anvil head and nail bin and becomes the firing action of nail.This life of will seeking medical advice closes at anastomat jaw and in percussion process, manually operates closed knob or firing handle.Therefore, completely empirically judge when doctor performs the operation reasonably to organize squeezing degree, corresponding accurate tissue squeezing thickness can not be provided for the tissue signature of different patient.But, empirically judge that the error of tissue squeezing thickness causes different patient's postoperative effect discrete type larger, be difficult to ensure that each operation all can make tissue squeeze and be in reasonably one-tenth nail scope, once organize squeezing scope unreasonable, then there will be into the phenomenons such as nail is inconsistent, secondary Cheng Ding, thus there is the postsurgery symptoms such as tissue leakage, tissue necrosis, not only have impact on the efficiency of operation, return patient and cause great misery.
Summary of the invention
Based on this, be necessary to be difficult to ensure that each operation all can make tissue squeeze the problem being in and reasonably becoming nail scope for traditional mechanical anastomat, provide a kind of tissue that can make to squeeze the anastomat being in and reasonably becoming nail scope.
A kind of anastomat, comprises
Outer sleeve, is axially provided with the through hole run through along it;
Power shaft, is arranged in described outer sleeve, for transmitting power;
Closed main shaft, one end that one end is sheathed on described power shaft is outside, rotates when described closed main shaft drives by described power shaft;
Closed axle slide block, is sheathed on the outside of described closed main shaft, and is connected with described closed spindle thread, and described closed axle slide block advances by doing translation during described closed main shaft drives or retreats;
Close and open push jack, be fixedly connected with described closed axle slide block, advance by doing translation during described closed main shaft drives or retreat;
Percussion main shaft, is positioned at the side of described closed main shaft, rotates when described percussion main shaft drives by described power shaft;
Beating shaft slide block, is sheathed on the outside of described percussion main shaft, and is connected with described percussion spindle thread, and described beating shaft slide block advances by doing translation during described percussion main shaft drives or retreats;
Pushing device, abuts with described beating shaft slide block, by the translation of described beating shaft slider-actuated;
Switching mechanism, stretches in the described through hole of described outer sleeve, and described switching mechanism selectively coordinates with described closed main shaft, described percussion main shaft or is separated;
Pressure transducer, when described anastomat closes, described pressure transducer can be squeezed and produce pressure signal;
Closed limit switch, when described closed axle slide block movement is to precalculated position, described closed limit switch can be triggered.
When above-mentioned anastomat is positioned at original state, switching mechanism coordinates with closed main shaft and is separated with percussion main shaft.When power shaft rotates, closed main shaft is subject to power shaft to drive rotation, drives closed axle slide block simultaneously and close to open push jack moving linearly, completes the opening procedure of anastomat.Power shaft reversion then drives closed axle slide block and closes opens push jack back translation, when closed axle shoe contact pressure transducer, whether the numerical value of systems stay monitoring pressure sensor is within the scope of systemic presupposition, when force value meets systemic presupposition scope and closed limit switch is triggered, closed action stops.Subsequently, regulate switching mechanism, make it be separated with closed main shaft and coordinate with percussion main shaft.Now, percussion switch can be triggered, and anastomat enters percussion pattern.When power shaft rotates, percussion main shaft drives by power shaft and rotates, and drives beating shaft slide block simultaneously and pulls the trigger spacing push rod moving linearly, until promote pushing device to realize ejector pin action, completing percussion process.Therefore, compared with traditional anastomat, anastomat of the present invention can make tissue squeezing be in reasonably one-tenth nail scope.
Wherein in an embodiment, described anastomat also comprises percussion limit switch, and described percussion limit switch is arranged on the inner surface of described outer sleeve, and when described beating shaft slide block movement is to precalculated position, described percussion limit switch can be triggered.
Wherein in an embodiment, described switching mechanism comprises
Change-over switch, stretches in the described through hole of described outer sleeve, and can move in described through hole;
First switches ring, and the one end being sheathed on described closed main shaft is outside, and described first switches ring engages with described change-over switch;
First guide pad, is sheathed on the outside of described power shaft, and described first guide pad is driven by described power shaft and rotates, and described change-over switch can promote described first switching ring and selectively engages with described first guide pad or be separated;
Switch driving lever, between described closed main shaft and described percussion main shaft, and switch ring engage with described first;
Second switches ring, is sheathed on the outside of described percussion main shaft, and engages with described switching driving lever;
Second guide pad, is sheathed on the outside of described percussion main shaft, and described switching driving lever can promote described second switching ring and selectively engages with described second guide pad or be separated;
Percussion switching shaft, one end is sheathed on the outside of described percussion main shaft, and is sheathed on the inside that described second switches ring, and described second switches ring rotates by described percussion switching shaft driving.
Wherein in an embodiment, described anastomat also comprises the first gear for transmitting power and the second gear, described first geared sleeve is located at the outside of described power shaft, driven by described power shaft and rotate, described second gear and described first gears meshing, and reversely rotated by described first gear drive, and one end that described second geared sleeve is located at described percussion switching shaft is outside, described percussion switching shaft is rotated by described second gear drive.
Wherein in an embodiment, the end that described closed axle slide block is relative with described closed limit switch is provided with closed regulating element, and the position of described closed regulating element in described closed axle slide block direction of translatory motion is adjustable.
Wherein in an embodiment, described anastomat also comprises limit guide rail, described limit guide rail has two relative surfaces, each described surface all offers the groove run through, described limit guide rail is between described closed main shaft and described percussion main shaft, and described closed axle slide block and described beating shaft slide block limit rotary motion by described limit guide rail.
Wherein in an embodiment, the nail bin that described anastomat also comprises realizing osculating effect and nail anvil head, can realize with described nail anvil head the puncture axle that is connected or is separated, described puncture axle is closedly opened push jack with described and is connected.
Wherein in an embodiment, described pressure transducer to be positioned on described nail anvil head near the outer surface of described nail bin, to be positioned on described nail bin near the outer surface of described nail anvil head or to be sheathed on the outside of described closed main shaft, when described pressure transducer is sheathed on described closed main shaft outside, described pressure transducer can abut against with described closed axle slide block.
Wherein in an embodiment, described pushing device comprises
Pull the trigger spacing push rod, abut with described beating shaft slide block, by the translation of described beating shaft slider-actuated;
Beating shaft push jack, engages with the spacing push rod of described percussion, drives translation by the spacing push rod of described percussion;
Beating shaft far-end throw-out collar, abuts with described beating shaft push jack, drives translation by described beating shaft push jack;
Pushing slice of nail, drives translation by described beating shaft far-end throw-out collar.
Wherein in an embodiment, described anastomat also comprises the reseting elastic element between described outer sleeve and described pushing slice of nail, and described reseting elastic element is in order to abut described pushing slice of nail.
Accompanying drawing explanation
Fig. 1 is the front view of anastomat in the embodiment of the present invention;
Fig. 2 is the top view of anastomat in the embodiment of the present invention;
Fig. 3 is the part drawing of anastomat in the embodiment of the present invention;
Fig. 4 be in the embodiment of the present invention anastomat close before state diagram;
Fig. 5 is that in the embodiment of the present invention, anastomat closes the state diagram before rear percussion;
Fig. 6 is that in the embodiment of the present invention, the state diagram put in place pulled the trigger by anastomat.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
Anastomat 100 in the embodiment of the present invention is electric drive anastomat, and its front view and top view are respectively as depicted in figs. 1 and 2.Anastomat 100 comprises handle portion 110, drive mechanism 120 and osculating portion 130.Handle portion 110 and osculating portion 130 are connected to the two ends of drive mechanism 120.
Handle portion 110 is reusable electric handle of sterilizing, and inside arranges fast connector and signal transmission port 223.Wherein, fast connector realizes handle portion 110 and is connected with the exterior mechanical of drive mechanism 120, and its inside realizes the moment of torsion transmission of handle portion 110 and drive mechanism 120 by the hexangle type main shaft of standard.The control module organizing squeeze force and positional information to be passed to handle portion 110 by signal transmission port 223 in drive mechanism 120 realizing the closing of anastomat 100, open and the action such as percussion.
In addition, the outer setting of handle portion 110 is used for controlling the close push button 111 that anastomat 100 works, the vernier knob 113 opening button 112 and realization fine setting.When anastomat 100 is in closed opening procedure, close push button 111 is used for controlling anastomat 100 and realizes closed.And when anastomat 100 is in percussion process, close push button 111 realizes percussion for controlling anastomat 100.The anastomat 100 of the present embodiment is electric drive anastomat, if but just in case electric drive breaks down and cannot enable electric drive, then can also manually operate to regulate vernier knob 113, to realize the closing of anastomat 100, to open or percussion process.
Drive mechanism 120 comprises outer sleeve 121, the form 122 be located on outer sleeve 121, for switching the closed or change-over switch 219 of cock and the indication window 124 of indicating operating status.Form 122 can be used for observing the closed progress of anastomat 100, namely becomes staple height.Anastomat 100 is in and reasonably becomes staple height to be the essential condition closed.
Osculating portion 130 comprises nail bin 131 and nail anvil head 132.Nail bin 131 is fixedly connected with the outer sleeve 121 of drive mechanism 120, and nail bin 131 and nail anvil head 132 can realize being separated or closing.
When anastomat 100 carries out operation use, need first reusable electric drive handle portion 110, drive mechanism 120 and osculating portion 130 to be linked together, being opened by anastomat 100 subsequently makes nail bin 131 be separated with nail anvil head 132, nail anvil head 132 needs the tissue of osculating to do pocket process with intestinal tube etc., and drive mechanism 120 is organized through other end intestinal tube etc. and does pocket process.Press and remain closed button 111 with closed nail anvil head 132 and nail bin 131 to indicating window Green Zone, simultaneously whether the data of anastomat 100 built-in system detected pressures sensor 237 are within the scope of systemic presupposition, when the above two conditions are met, closed action stops, and the tissue being now arranged in osculating portion 130 squeezing is in and reasonably extrudes thickness.Change-over switch 219 is stirred in direction subsequently to osculating portion 130, press close push button 111 and keep by state, realize the percussion of anastomat 100 and cut off the tissues such as intestinal tube between nail bin 131 and nail anvil head 132, realizing coincideing of tissue simultaneously.The stroke of firing action is controlled by the percussion limit switch 215 of anastomat 100 inside.
In the embodiment of the present invention, the part drawing of anastomat 100 as shown in Figure 3.Power shaft 226 and signal transmission interface 223 are all arranged in outer sleeve 121, are respectively used to transmit power and signal.Wherein, one end of power shaft 226 is D profile shaft, conveniently drives the element coordinated with it to rotate.
The anastomat 100 of the present embodiment only has a power shaft 226, and power passes to closed main shaft 218 and percussion main shaft 240 by switching mechanism respectively from power shaft 226, completes closed and firing action respectively.And in percussion process, transmit power by the first gear 227 and the second cooperatively interacting of gear 228.Concrete, the D profile shaft that the first gear 227 is sheathed on power shaft 226 is outside.Second gear 228 engages with the first gear 227, and when the first gear 227 rotates, the second gear 228 can reversely rotate with the first gear 227.One end of percussion switching shaft 230 is sheathed on the outside of percussion main shaft 240, and is sheathed on the inside of the second gear 228.Percussion switching shaft 230 drives rotation by the second gear 228.
Switching mechanism selectively with closed main shaft 218, pull the trigger main shaft 240 and coordinate or be separated.Switching mechanism comprises change-over switch 219, first and switches ring 221, first guide pad 222, switches driving lever 233, pulls the trigger switching shaft 230, second switching ring 231 and the second guide pad 232.Wherein, change-over switch 219 stretches in the through hole of outer sleeve 121, and can move in through-holes.First switches the outside, one end that ring 221 is sheathed on closed main shaft 218, and engages with change-over switch 219.The other end that first guide pad 222 is sheathed on power shaft 226 is outside, and the first guide pad 222 drives rotation by power shaft 226.Change-over switch 219 can promote the first switching ring 221 and selectively engage with the first guide pad 222 or be separated.Switch driving lever 233 between closed main shaft 218 and percussion main shaft 240, and switch ring 221 engage with first.When the first switching ring 221 is separated with the first guide pad 222, switch the percussion program that driving lever 233 can trigger anastomat 100.Percussion switching shaft 230 is sheathed on the inside of the second gear 228, drives rotation by the second gear 228.Second switches the outside that ring 231 is sheathed on percussion main shaft 240, and can respectively with switching driving lever 233, pull the trigger switching shaft 230 and engages, drive rotation by pulling the trigger switching shaft 230.Second guide pad 232 is sheathed on the outside of percussion main shaft 240, and switching driving lever 233 can promote the second switching ring 231 and selectively engage with the second guide pad 232 or be separated.
One end of closed main shaft 218 can be sheathed on the other end outside of power shaft 226, is sheathed on the inside of the first switching ring 221 simultaneously.Closed axle slide block 217 is sheathed on the outside of closed main shaft 218, and is threaded with closed main shaft 218.Owing to being subject to the restriction of limit guide rail 239, when closed axle slide block 217 drives by closed main shaft 218, translation advance or setback can only be done.Limit guide rail 239 has two relative surfaces, each surface all offers the groove run through, and limit guide rail 239 is between closed main shaft 218 and percussion main shaft 240.The closed one end of opening push jack 211 being positioned at push jack guide rail 210 is fixedly connected with closed axle slide block 217, and the other end is connected with puncture axle 206.Puncture axle 206 can realize connecting or being separated with nail anvil head, thus realizes the closed of anastomat 100 or open.
Percussion main shaft 240 is positioned at the side of closed main shaft 218, and one end is D profile shaft, and the second guide pad 232 is set in the outside of this D profile shaft one end.Percussion main shaft 240 can drive rotation by the second guide pad 232.Beating shaft slide block 241 is sheathed on the outside of percussion main shaft 240, and is threaded with percussion main shaft 240.Owing to being subject to the restriction of limit guide rail 239, when beating shaft slide block 241 drives by percussion main shaft 240, translation advance or setback can only be done.
Pushing device abuts with beating shaft slide block 241.Pushing device comprises percussion spacing push rod 212, beating shaft push jack 209, beating shaft far-end throw-out collar 208 and pushing slice of nail 205.Wherein, pull the trigger spacing push rod 212 and abut with beating shaft slide block 241, and drive translation by beating shaft slide block 241.Beating shaft push jack 209 engages with the spacing push rod 212 of percussion, and drives translation by the spacing push rod 212 of percussion.Beating shaft far-end throw-out collar 208 abuts with beating shaft push jack 209, and drives translation by beating shaft push jack 209.Pushing slice of nail 205 is positioned at nail bin 131, can drive translation by beating shaft far-end throw-out collar 208.
Nail bin 131 comprises nail bin sheath 202, is positioned at the pushing slice of nail 205 of nail bin sheath 202 inside, curved knife 204 and nail bin support 203.Nail bin 131 is fixedly connected with outer sleeve 121.
Anastomat 100 inside of the present embodiment is provided with the intelligent switch such as pressure transducer 237, closed limit switch 235, percussion switch 220 and percussion limit switch 215.When anastomat closes, pressure transducer 237 can be squeezed and produce pressure signal.When closed axle slide block 217 moves to precalculated position, closed limit switch 235 can be triggered.When switching mechanism to be separated with closed main shaft 218 and to coordinate with percussion main shaft 240, percussion switch 220 can be triggered.On the inner surface of percussion limit switch 215 sleeve pipe 121 mounted externally, when beating shaft slide block 241 moves to precalculated position, percussion limit switch 215 can be triggered.The setting of above-mentioned four intelligent switch can be guaranteed best one-tenth staple height, control percussion time and stroke etc., decreases the artificial error judged.Organize squeeze force simultaneously due to each operation technique of its storage inside, multiple data accumulation by continue to optimize setting organize squeeze force to make it be substantially equal to the best to organize squeeze force.
The pressure transducer 237 of the present embodiment is sheathed on the outside of closed main shaft 218, can abut against with closed axle slide block 217.Therefore, when closed axle slide block 217 moves backward, can contact and extrude above-mentioned pressure transducer 237, pressure transducer 237 can to the control module transmission of pressure signal being positioned at handle portion 130.Certainly, the position of pressure transducer 237 is not limited thereto, as long as can pressure signal be detected when anastomat 100 is at closure state.Such as, pressure transducer 237 can also be positioned on nail anvil head near the outer surface of nail bin or the outer surface being positioned at close nail anvil head on nail bin.In addition, the position of other intelligent switch such as the closed limit switch 235 of the present embodiment, percussion switch 220 and percussion limit switch 215 is also not limited thereto.
In the anastomat 100 of the present embodiment, be provided with the closed regulating element 242 of adjustable position in the end that closed axle slide block 217 is relative with closed limit switch 235, the closed position of regulating element 242 in closed axle slide block 217 direction of translatory motion is adjustable.Can regulate the position of closed regulating element 242 when dispatching from the factory, to reduce the progressive error that anastomat 100 produces in assembling process.In the process that anastomat 100 is closed, closed axle slide block 217 back translation, drives closed regulating element 242 back translation, and when anastomat 100 is closed to reasonable altitudes scope, closed regulating element 242 can pull the trigger closed limit switch 235, stops closed.In closed regulating element the present embodiment, closed regulating element 242 is screw, and is threaded with closed axle slide block 217.Certainly, closed regulating element 242 can also be other element except screw, and the connected mode of itself and closed axle slide block 217 is not limited thereto.Such as the two can directly snap together.
In addition, the closed limit switch 235 in the present embodiment and percussion limit switch 215 all adopt photoswitch, and percussion switch 220 adopts Hall switch.But the type of closed limit switch 235, percussion limit switch 215 and percussion switch 220 is not limited thereto, and all can also adopt other intelligent switch, as long as can the closed or firing action of Based Intelligent Control anastomat 100.
The anastomat 100 of the present embodiment also comprises the reseting elastic element 207 between outer sleeve 121 and pushing slice of nail 205.This reseting elastic element 207 to be arranged in nail bin sheath 202 and in order to abut pushing slice of nail 205.Reseting elastic element 207 in the present embodiment is spring.After percussion completes beating shaft slide block 241 reset, pushing slice of nail 205 can be pushed back initial position by this reseting elastic element 207, makes the curved knife 204 in pushing slice of nail 205 be hidden within nail bin, avoids doctor to be scratched by blade when checking resection organization.
When anastomat 100 below in conjunction with the embodiment of the present invention works, the profile of drive mechanism 120 is to describe its operation principle in detail.
As shown in Figure 4, now switching mechanism coordinates with closed main shaft 218 state before anastomat 100 is closed, and is separated with percussion main shaft 240.Concrete, change-over switch 219 is positioned on the right side of the through hole on outer sleeve 121, and first switches ring 221 engages with the first guide pad 222.Meanwhile, the second switching ring 231 and the second guide pad 232 are in released state in the axial direction.Now, closed axle slide block 217 is positioned at the end of closed main shaft 218 away from power shaft 226.
Press close push button 111, power shaft 226 reversely rotates, and drives the first guide pad 222 and the first switching ring 221 to reversely rotate, thus drives closed main shaft 218 to reversely rotate.The closed axle slide block 217 that limited guide rail 239 limits rotary motion carries out straight line retrogressing toward power shaft 226 direction, and drives closed push jack 211 straight line of opening be fixedly connected with closed axle slide block 217 to retreat, until closed axle slide block 217 contact pressure sensor 237.When system monitoring is in systemic presupposition scope to the numerical value of pressure transducer 237, meet the requirement of the crushing strength to tissue.Meanwhile, if open the closed regulating element 242 that push jack 211 is threaded trigger closed limit switch 235 with closed, show that shut height is between 1.5mm ~ 2.5mm, meets preset requirement.Now anastomat 100 stops closing motion automatically.
Fig. 5 is the state diagram in the present embodiment before the closed rear percussion of anastomat 100, and as can be seen from the figure, now closed axle slide block 217 is positioned at closed main shaft 218 near the end of power shaft 226, and abuts against with pressure transducer 237.And closed regulating element 242 triggers closed limit switch 235.
Stir change-over switch 219 toward left side subsequently, switching mechanism is separated with closed main shaft 218, and coordinate with percussion main shaft 240.Concrete, first switches ring 221 is separated in the axial direction with the first guide pad 222.And the second switching ring 231 engages with the second guide pad 232.Meanwhile, change-over switch 219 drives the switching driving lever 233 being equipped with Magnet away from the Hall switch be fixed on outer sleeve 121, Hall switch is triggered, thus safety switch is also triggered.Control module in handle portion starts to call percussion modular program.
Press close push button 111, power shaft 226 rotates, and drives the first gear 227 to rotate, and then drives the second gear 228 engaged with the first gear 227 to reversely rotate.Second gear 228 rotates, and drives percussion switching shaft 230 to rotate, and drives second to switch ring 231, second guide pad 232 subsequently successively and pull the trigger main shaft 240 to rotate.Limited guide rail 239 limits the beating shaft slide block 241 of rotary motion to osculating portion 130 moving linearly, thus promotes spacing push rod 212 moving linearly of percussion.Pull the trigger spacing push rod 212 drives beating shaft push jack 209, beating shaft far-end throw-out collar 208 and pushing slice of nail 205 to osculating portion 130 moving linearly simultaneously successively, realizes coincideing to squeezing tissue.The curved knife 204 be simultaneously arranged on pushing slice of nail 205 can cut off the tissue coincide.And the percussion limit switch 215 that the stroke of percussion motion can trigger sleeve pipe 121 inside mounted externally by beating shaft slide block 241 controls.The state diagram that in the present embodiment, anastomat 100 has finally been pulled the trigger as shown in Figure 6.
When above-mentioned anastomat 100 is positioned at original state, switching mechanism coordinates with closed main shaft 218 and is separated with percussion main shaft 240.When power shaft 226 rotates, closed main shaft 218 is subject to power shaft 226 to drive rotation, drives closed axle slide block 217 simultaneously and closes and open push jack 211 moving linearly, complete the opening procedure of anastomat.Power shaft 226 reverses, and drives closed axle slide block 217 and close to open push jack 211 back translation, when closed axle slide block 217 contact pressure sensor 237, whether the numerical value of systems stay monitoring pressure sensor 237 is within the scope of systemic presupposition, signal transmission interface can be used for the signal of transmission pressure sensor 237 and closed limit switch 235, when force value meets systemic presupposition scope and closed limit switch 235 is triggered, closed action stops.Subsequently, regulate switching mechanism, make it be separated with closed main shaft 218 and coordinate with percussion main shaft 240.Now, Hall switch can be triggered, and anastomat enters percussion pattern.When power shaft 226 rotates, percussion main shaft 240 drives by power shaft 226 and rotates, and drives beating shaft slide block 241 simultaneously and pulls the trigger spacing push rod 212 moving linearly, until promote pushing device to realize ejector pin action, completing percussion process.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an anastomat, is characterized in that, comprises
Outer sleeve, is axially provided with the through hole run through along it;
Power shaft, is arranged in described outer sleeve, for transmitting power;
Closed main shaft, one end that one end is sheathed on described power shaft is outside, rotates when described closed main shaft drives by described power shaft;
Closed axle slide block, is sheathed on the outside of described closed main shaft, and is connected with described closed spindle thread, and described closed axle slide block advances by doing translation during described closed main shaft drives or retreats;
Close and open push jack, be fixedly connected with described closed axle slide block, advance by doing translation during described closed main shaft drives or retreat;
Percussion main shaft, is positioned at the side of described closed main shaft, rotates when described percussion main shaft drives by described power shaft;
Beating shaft slide block, is sheathed on the outside of described percussion main shaft, and is connected with described percussion spindle thread, and described beating shaft slide block advances by doing translation during described percussion main shaft drives or retreats;
Pushing device, abuts with described beating shaft slide block, by the translation of described beating shaft slider-actuated;
Switching mechanism, stretches in the described through hole of described outer sleeve, and described switching mechanism selectively coordinates with described closed main shaft, described percussion main shaft or is separated;
Pressure transducer, when described anastomat closes, described pressure transducer can be squeezed and produce pressure signal;
Closed limit switch, when described closed axle slide block movement is to precalculated position, described closed limit switch can be triggered.
2. anastomat according to claim 1, it is characterized in that, described anastomat also comprises percussion limit switch, and described percussion limit switch is arranged on the inner surface of described outer sleeve, when described beating shaft slide block movement is to precalculated position, described percussion limit switch can be triggered.
3. anastomat according to claim 1, is characterized in that, described switching mechanism comprises
Change-over switch, stretches in the described through hole of described outer sleeve, and can move in described through hole;
First switches ring, and the one end being sheathed on described closed main shaft is outside, and described first switches ring engages with described change-over switch;
First guide pad, is sheathed on the outside of described power shaft, and described first guide pad is driven by described power shaft and rotates, and described change-over switch can promote described first switching ring and selectively engages with described first guide pad or be separated;
Switch driving lever, between described closed main shaft and described percussion main shaft, and switch ring engage with described first;
Second switches ring, is sheathed on the outside of described percussion main shaft, and engages with described switching driving lever;
Second guide pad, is sheathed on the outside of described percussion main shaft, and described switching driving lever can promote described second switching ring and selectively engages with described second guide pad or be separated;
Percussion switching shaft, one end is sheathed on the outside of described percussion main shaft, and is sheathed on the inside that described second switches ring, and described second switches ring rotates by described percussion switching shaft driving.
4. anastomat according to claim 3, it is characterized in that, described anastomat also comprises the first gear for transmitting power and the second gear, described first geared sleeve is located at the outside of described power shaft, driven by described power shaft and rotate, described second gear and described first gears meshing, and reversely rotated by described first gear drive, and one end that described second geared sleeve is located at described percussion switching shaft is outside, described percussion switching shaft is rotated by described second gear drive.
5. anastomat according to claim 1, is characterized in that, the end that described closed axle slide block is relative with described closed limit switch is provided with closed regulating element, and the position of described closed regulating element in described closed axle slide block direction of translatory motion is adjustable.
6. anastomat according to claim 1, it is characterized in that, described anastomat also comprises limit guide rail, described limit guide rail has two relative surfaces, each described surface all offers the groove run through, described limit guide rail is between described closed main shaft and described percussion main shaft, and described closed axle slide block and described beating shaft slide block limit rotary motion by described limit guide rail.
7. anastomat according to claim 1, it is characterized in that, the nail bin that described anastomat also comprises realizing osculating effect and nail anvil head, can realize with described nail anvil head the puncture axle that is connected or is separated, described puncture axle is closedly opened push jack with described and is connected.
8. anastomat according to claim 7, it is characterized in that, described pressure transducer to be positioned on described nail anvil head near the outer surface of described nail bin, to be positioned on described nail bin near the outer surface of described nail anvil head or to be sheathed on the outside of described closed main shaft, when described pressure transducer is sheathed on described closed main shaft outside, described pressure transducer can abut against with described closed axle slide block.
9. anastomat according to claim 1, is characterized in that, described pushing device comprises
Pull the trigger spacing push rod, abut with described beating shaft slide block, by the translation of described beating shaft slider-actuated;
Beating shaft push jack, engages with the spacing push rod of described percussion, drives translation by the spacing push rod of described percussion;
Beating shaft far-end throw-out collar, abuts with described beating shaft push jack, drives translation by described beating shaft push jack;
Pushing slice of nail, drives translation by described beating shaft far-end throw-out collar.
10. anastomat according to claim 9, is characterized in that, described anastomat also comprises the reseting elastic element between described outer sleeve and described pushing slice of nail, and described reseting elastic element is in order to abut described pushing slice of nail.
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| CN201510975916.3A CN105411641B (en) | 2015-12-22 | 2015-12-22 | Stapler |
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| CN201510975916.3A CN105411641B (en) | 2015-12-22 | 2015-12-22 | Stapler |
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| CN105411641A true CN105411641A (en) | 2016-03-23 |
| CN105411641B CN105411641B (en) | 2018-07-06 |
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