CN202942167U - Percussion mechanism for surgical linear incision anastomat - Google Patents
Percussion mechanism for surgical linear incision anastomat Download PDFInfo
- Publication number
- CN202942167U CN202942167U CN 201220658931 CN201220658931U CN202942167U CN 202942167 U CN202942167 U CN 202942167U CN 201220658931 CN201220658931 CN 201220658931 CN 201220658931 U CN201220658931 U CN 201220658931U CN 202942167 U CN202942167 U CN 202942167U
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- China
- Prior art keywords
- nail bin
- push button
- slide block
- bin frame
- nail
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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
- A61B17/068—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
Abstract
The utility model provides a percussion mechanism for a surgical linear incision anastomat. Either a single L-shaped pushing button or two pushing buttons respectively arranged on the left side and the right side of a nail bin rack can be provided. When the pushing button (s) is (are) pushed forwards or backwards, an elastic pushing button lock in a sliding block restricts the position of the pushing button (s) on the sliding block; and when the pushing button (s) move (s) forwards to achieve percussion, the pushing part (s) of the pushing button (s) is (are) closer to the force application point of an arc-shaped groove (s) of the pushing button (s) and an arc-shaped fin of the sliding block in the nail bin rack, so that friction between the sliding block and the nail bin rack, as well as deformation of the sliding block, caused by torque, is reduced as much as possible, and accordingly, the using effect of resistance reduction during incision percussion of the percussion mechanism is taken.
Description
Technical field
This utility model relates to the firing lock in various surgical linear Endo-GIAs.
Background technology
Various surgical linear Endo-GIAs are used to replace adopt in surgical operation the free-hand identical operation of needlework, be widely used in the operations such as the end end of human body alimentary canal organ, respiratory tract organ and apparatus urogenitalis official rank Organ and tissue, distolateral and side to side anastomosis, form the operation of organ passage and the operation of close incisions, be specially adapted to appear the anastomosis operation with the Organ and tissue of operating difficulties, can reduce operating time, improve the operation quality.
As introducing in United States Patent (USP) publicity 20080116244,20090308909 and 20110155787: known various surgical linear Endo-GIAs are comprised of nail bin groupware, nail-anvil assembly and clamp hook.Nail bin is arranged in nail bin groupware, the nail bin frame of nail bin is installed and is arranged on the interior firing lock of nail bin frame.It is linear that nail bin is, can be both rectilinear, also can be curved.Ejector pin piece and anastomosis staple are installed in nail bin.A plurality of anastomosis staples are staggered to two or more rows in nail bin.On the nail bin frame, briquetting is arranged.Firing lock is tiltedly carved with cutter by push button, slide block, push pedal, ejector pin and is formed, and wherein cutter can be according to using needs to install.Nail anvil and nail anvil frame are arranged in nail-anvil assembly.Nail anvil can be made one with the nail anvil frame.It is linear that nail anvil is, can be both rectilinear, also can be curved.Be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in nail bin on the surface of nail anvil.A plurality of anastomosis staple groovings are staggered to two or more rows on the surface of nail anvil.Clamp hook and nail bin frame are pivotally connected.After nail bin groupware and nail-anvil assembly close up mutually, clamp hook is rotated around nail bin frame pivot, make clamp hook hook the nail anvil frame, make the clamped hook of nail bin groupware and nail-anvil assembly clamp, will treat that identical clamp tissue is between nail anvil and nail bin.
As introducing in United States Patent (USP) publicity 20090308909: the push button of the firing lock of surgical linear Endo-GIA is fixed in the one-sided of nail bin groupware.When the push button promotion slide block of firing lock moves forward in the nail bin frame, the slipper push push pedal moves forward in the nail bin frame, push pedal promotes ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin.When the ejector pin piece is released anastomosis staple in nail bin, the nail tip of anastomosis staple is pressed on the grooving of nail anvil, make two nail lower limbs of anastomosis staple along the grooving bending forming, reach the operation purpose of will tissue coincideing.The accurate operation purpose of coincideing of tissue of coincideing will be waited in order to guarantee to reach, the push button of firing lock needs continuously the anastomosis staple of 80 left and right to be released in nail bin without a break when percussion, and making two of anastomosis staple nail lower limbs along the grooving bending forming, the active force that surgical doctor is applied on push button is larger.The unsatisfactory place of the firing lock of the surgical linear Endo-GIA of this style is: when nail bin groupware and the clamped hook of nail-anvil assembly clamp will be when identical clamp tissue be between nail anvil and nail bin, treated the impact of the anatomical position of identical tissue, the position at the push button place of one-sided fixed placement may be not easy to surgical doctor and apply active force at push button, thereby impact reaching the requirements of operation that the tissue of waiting to coincide accurately coincide.As introducing in United States Patent (USP) publicity 20080116244: the pivot of the slide block that the M shape push button of the firing lock of surgical linear Endo-GIA can be in being arranged on the nail bin frame rotates.After the pivot of slide block rotated, M shape push button both can be outstanding to the left side of nail bin frame when M shape push button, also can be outstanding to the right side of nail bin frame, and be convenient to surgical doctor and select to apply the position that acts on the power on M shape push button.As introducing in United States Patent (USP) publicity 20110155787: the pivot of the slide block that the push button of the firing lock of surgical linear Endo-GIA can be in being arranged on the nail bin frame rotates.After the pivot of slide block rotated, push button both can be outstanding to the left side of nail bin frame when push button, also can be outstanding to the right side of nail bin frame.Be positioned at the afterbody of nail bin frame due to push button, when the operation that is clamping wait the tissue that coincide, push button is any side-prominent to the nail bin frame not, do not affect surgical doctor clamp hook is applied active force; When push button percussion operation, be convenient to again the position that the surgical doctor selection applies the push button of active force.The unsatisfactory place of the firing lock of the surgical linear Endo-GIA of above-mentioned several styles is: due to when the percussion operation is carried out in the push button reach, the promotion position of push button all the slide block in push button and the nail bin frame point of force application away from, therefore, the power that push button acts on slide block forms cutting coincide useful thrust and useless moment of torsion, frictional force between moment of torsion increase slide block and nail bin frame and the distortion of slide block, thereby the resistance of the percussion operation that the cutting of increase firing lock coincide.Therefore the firing lock of surgical linear Endo-GIA also need improve.
Obviously can be found out by above-mentioned, a large amount of not in specie surgical linear Endo-GIAs have been designed now, and the development work of the firing lock of new surgical linear Endo-GIA is still continuing, so that the surgical linear Endo-GIA that used in a large number every year in the world is improved further, more convenient, more laborsaving, more reliable when reaching use, the surgical doctor of being more convenient for applies active force and does not reduce the surgical effect of the operation subject range of surgical linear Endo-GIA.
The utility model content
the purpose of this utility model is to propose a kind of firing lock of surgical linear Endo-GIA, realize being in when pulling the trigger state when L shaped push button, the chassis of the elasticity push button lock in slide block springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, the axle of elasticity push button lock and the arcuate groove of L shaped push button break away from, L shaped push button make the arcuate groove of L shaped push button to rotate along the arc wing pivot of slide block, so that both can launch to the left side of nail bin frame, also can launch to the right side of nail bin frame, when beginning to promote L shaped push button, act on making every effort to overcome on L shaped push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, making L shaped push button can promote slide block moves forward and backward in the nail bin frame, simultaneously, move in the arcuate groove that inserts L shaped push button on the axle of elasticity push button lock, when the percussion operation is carried out in L shaped push button reach, L shaped push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes push pedal again and moves forward in the nail bin frame, push pedal promotes ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin, move after L shaped push button when carrying out reset operation, the axle of locking due to the elasticity push button in slide block inserts in the arcuate groove of L shaped push button, make the arcuate groove of L shaped push button to rotate along the arc wing pivot of slide block, at this moment, L shaped push button makes slide block move backward in the nail bin frame by the axle of the lock of the elasticity push button in arcuate groove band movable slider, slide block promotes push pedal again and moves backward in the nail bin frame, push pedal promotes ejector pin again and tiltedly carves with cutter and move backward in the nail bin frame, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, firing lock is resetted.Like this, when promoting L shaped push button forward or backward, the position of the elasticity push button lock L shaped push button of constraint on slide block in slide block; When the percussion operation is carried out in L shaped push button reach, the promotion position of L shaped push button from the point of force application of the arc wing of the arcuate groove of L shaped push button and the slide block in the nail bin frame close to, reduce as far as possible slide block and the frictional force between the nail bin frame and the distortion of slide block that moment of torsion produces, thereby reach the result of use that reduces the resistance of firing lock when the operation that the execution cutting coincide.
the purpose of this utility model is to propose the firing lock of another kind of surgical linear Endo-GIA, realizes that push button is two push buttons of the left and right sides that minute is listed in the nail bin frame, push button is in when pulling the trigger state when two of left and right, the chassis of the elasticity push button lock in slide block springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, left and right projection and the restraint slot in the middle part of push button of elasticity push button lock break away from, make the arcuate groove of two push buttons in left and right can be respectively rotate along the arc wing pivot of slide block, both the push button on the left of the nail bin frame can be launched to the left side of nail bin frame, also the push button on nail bin frame right side can be launched to the right side of nail bin frame, two push buttons of nail bin frame both sides can also be launched to the left and right sides of nail bin frame respectively, when beginning to promote push button, act on making every effort to overcome on push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, making push button promote slide block moves forward and backward in the nail bin frame, simultaneously, move in the restraint slot of inserting respectively push button middle part, left and right on the left and right projection of elasticity push button lock, stop the pivot of the elasticity push button lock of two push buttons in slide block to rotate, when the percussion operation is carried out in the push button reach, push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes push pedal again and moves forward in the nail bin frame, push pedal promotes ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin, move after push button when carrying out reset operation, in the restraint slot in the middle part of the left and right projection insertion push button of the lock of the elasticity push button in slide block, make the arcuate groove of push button to rotate along the arc wing pivot of slide block.At this moment, push button makes slide block move backward in the nail bin frame by the projection of the lock of the elasticity push button in the restraint slot band movable slider at middle part, slide block promotes push pedal again and moves backward in the nail bin frame, push pedal promotes ejector pin again and tiltedly carves with cutter and move backward in the nail bin frame, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, firing lock is resetted.Like this, when promoting push button forward or backward, the position of elasticity push button lock constraint push button on slide block in slide block; When the percussion operation is carried out in the push button reach, the promotion position of push button from the point of force application of the arc wing of the arcuate groove of push button and the slide block in the nail bin frame close to, reduce as far as possible slide block and the frictional force between the nail bin frame and the distortion of slide block that moment of torsion produces, thereby reach the result of use that reduces the resistance of firing lock when the operation that the execution cutting coincide.
Task of the present utility model is achieved through the following technical solutions:
The surgical linear Endo-GIA is comprised of nail bin groupware, nail-anvil assembly and clamp hook.
Nail bin is arranged in nail bin groupware, the nail bin frame of nail bin is installed and is arranged on the interior firing lock of nail bin frame.It is linear that nail bin is, can be both rectilinear, also can be curved.Ejector pin piece and anastomosis staple are installed in nail bin.A plurality of anastomosis staples are staggered to two or more rows in nail bin.
Nail anvil and nail anvil frame are arranged in nail-anvil assembly.Nail anvil can be made one with the nail anvil frame.It is linear that nail anvil is, can be both rectilinear, also can be curved.Be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in nail bin on the surface of nail anvil.A plurality of anastomosis staple groovings are staggered to two or more rows on the surface of nail anvil.
Clamp hook and nail bin frame are pivotally connected.After nail bin groupware and nail-anvil assembly closed up mutually, clamp hook rotated around nail bin frame pivot, makes clamp hook hook the nail anvil frame, with nail bin groupware and nail-anvil assembly clamping.
The firing lock of surgical linear Endo-GIA of the present utility model is tiltedly carved with cutter by push button, slide block, push pedal, ejector pin and is formed.Push button can be single L shaped push button, also can be two push buttons of apportion in the left and right sides of nail bin frame.
The push button of surgical linear Endo-GIA of the present utility model can be single L shaped push button.L shaped push button has arcuate groove, the arc wing that launch the left and right sides of the oriented nail bin frame of slide block far-end, and the arcuate groove of L shaped push button is inserted on the arc wing of slide block.After the arcuate groove of L shaped push button rotated along the arc wing pivot of slide block, L shaped push button both can launch to the left side of nail bin frame, also can launch to the right side of nail bin frame.
The near-end of slide block can have and is constrained on the elasticity push button lock that moves up and down in slide block.Push button has been locked chassis, axle and spring.The near-end of the bottom of nail bin frame can be porose.When L shaped push button is in when pulling the trigger state, the chassis of the elasticity push button lock in slide block springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, the axle of elasticity push button lock and the arcuate groove of L shaped push button break away from, L shaped push button make the arcuate groove of L shaped push button to rotate along the arc wing pivot of slide block, so that both can launch to the left side of nail bin frame, also can launch to the right side of nail bin frame.
The near-end of push pedal has can hook, on L shaped push button, the arc step can be arranged.The hook of the near-end of push pedal is inserted on arc step on L shaped push button, L shaped push button is constrained in the slide block head lamp brush guard pivot rotate.
When beginning to promote L shaped push button, act on making every effort to overcome on L shaped push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, making L shaped push button promote slide block moves forward and backward in the nail bin frame, simultaneously, move in the arcuate groove that inserts L shaped push button on the axle of elasticity push button lock.
When the percussion operation is carried out in L shaped push button reach, L shaped push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes push pedal, ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin.
Move after L shaped push button when carrying out reset operation, the axle of locking due to the elasticity push button in slide block inserts in the arcuate groove of L shaped push button, makes the arcuate groove of L shaped push button to rotate along the arc wing pivot of slide block.At this moment, L shaped push button makes slide block move backward in the nail bin frame by the axle of the lock of the elasticity push button in arcuate groove band movable slider, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, firing lock is resetted.
Like this, when promoting L shaped push button forward or backward, the position of the elasticity push button lock L shaped push button of constraint on slide block in slide block; When the percussion operation is carried out in L shaped push button reach, the promotion position of L shaped push button from the point of force application of the arc wing of the arcuate groove of L shaped push button and the slide block in the nail bin frame close to, reduce as far as possible slide block and the frictional force between the nail bin frame and the distortion of slide block that moment of torsion produces, thereby reach the result of use that reduces the resistance of firing lock when the operation that the execution cutting coincide.
The push button of surgical linear Endo-GIA of the present utility model also can be two push buttons of apportion in the left and right sides of nail bin frame.The middle part of two push buttons has respectively pivot hole and restraint slot, front bottom that arcuate groove is arranged respectively, the arc wing that launch the left and right sides of the oriented nail bin frame of slide block far-end, and the arcuate groove of push button can be inserted on the arc wing of slide block.The middle part of slide block can have and is constrained on the elasticity push button lock that moves up and down in slide block.The elasticity push button has been locked chassis, pivot, spring and left and right projection.Be enclosed within on the pivot of elasticity push button lock at slide block middle part by pivot hole after the overlapping placement in up and down of two push buttons.Like this, two pivot rotations that push button can be locked around push button separately.The near-end of the bottom of nail bin frame can be porose.
push button is in when pulling the trigger state when two of left and right, the chassis of the elasticity push button lock in slide block springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, left and right projection and the restraint slot in the middle part of push button of elasticity push button lock break away from, make the arcuate groove of two push buttons in left and right can be respectively rotate along the arc wing pivot of slide block, both the push button on the left of the nail bin frame can be launched to the left side of nail bin frame, also the push button on nail bin frame right side can be launched to the right side of nail bin frame, two push buttons of nail bin frame both sides can also be launched to the left and right sides of nail bin frame respectively.
The nearside of slide block can flexible projection, and the bottom of two push buttons can be fluted respectively.When each push button was drawn close the side of nail bin frame, the elastic projection of slide block sprang in the groove of push button, and push button is constrained on slide block.When the pivot rotation of elasticity push button lock launched to the outside of nail bin frame, the groove of push button shifted out the elastic projection of slide block when each push button.
The near-end of push pedal can have hook, and being arranged on the push button on slide block top to have the arc step.The hook of the near-end of push pedal is inserted on arc step on the push button that is arranged on slide block top, two of left and right push button is constrained in the slide block head lamp brush guard pivot rotate.
When beginning to promote push button, act on making every effort to overcome on push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, making push button promote slide block moves forward and backward in the nail bin frame, simultaneously, move in the restraint slot of inserting respectively push button middle part, left and right on the left and right projection of elasticity push button lock, stop the pivot of the elasticity push button lock of two push buttons in slide block to rotate.
When the percussion operation is carried out in the push button reach, push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes push pedal, ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin.
Move after push button when carrying out reset operation, in the restraint slot in the middle part of the left and right projection insertion push button of the lock of the elasticity push button in slide block, make the arcuate groove of push button to rotate along the arc wing pivot of slide block.At this moment, push button makes slide block move backward in the nail bin frame by the projection of the lock of the elasticity push button in the restraint slot band movable slider at middle part, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, firing lock is resetted.
Like this, when promoting push button forward or backward, the position of elasticity push button lock constraint push button on slide block in slide block; When the percussion operation is carried out in the push button reach, the promotion position of push button from the point of force application of the arc wing of the arcuate groove of push button and the slide block in the nail bin frame close to, reduce as far as possible slide block and the frictional force between the nail bin frame and the distortion of slide block that moment of torsion produces, thereby reach the result of use that reduces the resistance of firing lock when the operation that the execution cutting coincide.
Can elongated slot be arranged both sides porose, the nail bin frame on the near-end of the push pedal of surgical linear Endo-GIA of the present utility model and slide block, pin inserted in the hole of push pedal and slide block and in the elongated slot of nail bin frame, make slide block to promote push pedal by pin and move forward and backward in the nail bin frame.
The far-end of push pedal can have the U-shaped fork.Ejector pin is tiltedly carved can U-lag.The far-end U-shaped of push pedal fork inserts in the U-lag that ejector pin tiltedly carves, and makes push pedal can promote ejector pin and tiltedly carves in the nail bin frame and move forward and backward.
Can there be elongated slot at the middle part of push pedal.Can there be alignment pin at the middle part of nail bin frame.The alignment pin at nail bin frame middle part inserts in the elongated slot of push pedal.When push button was in until firing position, the alignment pin gear in the middle part of the nail bin frame was at the far-end of the elongated slot of push pedal, and the constraint push pedal only can move forward in the nail bin frame.When push button is in when completing firing position, the alignment pin gear at nail bin frame middle part is in the proximal end of the elongated slot of push pedal, and the constraint push pedal only can be moved in the nail bin frame backward.
Description of drawings
The surgical linear Endo-GIA that Fig. 1 means this utility model the first embodiment when nail bin groupware and nail-anvil assembly are in clamped condition, and, the outside drawing when two push buttons launch to the left and right sides of nail bin frame respectively;
The surgical linear Endo-GIA that Fig. 2 means Fig. 1 is the outside drawing during to the side that launch on the right side, the left side push button is drawn close the nail bin frame of nail bin frame at the right side push button;
The surgical linear Endo-GIA that Fig. 3 means Fig. 1 is the outside drawing during to the side that launch in the left side, the right side push button is drawn close the nail bin frame of nail bin frame at the left side push button;
Fig. 4 means that the push button of the surgical linear Endo-GIA of Fig. 2 is in the outside drawing when completing firing position;
Fig. 5 means the outside drawing after the nail bin groupware of the surgical linear Endo-GIA of Fig. 2 is removed shell, nail bin and part adnexa;
Fig. 6 means the outside drawing of bottom surface of the nail bin groupware of Fig. 5;
Fig. 7 means the top view of push button, slide block, elasticity push button lock and push pedal in Fig. 5;
Fig. 8 means the 8-8 cutaway view of push button, slide block, elasticity push button lock and push pedal in Fig. 7;
Fig. 9 means the amplification outside drawing of the slide block of the first embodiment;
Figure 10 means the amplification outside drawing of the elasticity push button lock of the first embodiment;
Figure 11 means the amplification outside drawing of the left side push button of the first embodiment;
Figure 12 means the amplification outside drawing of the right side push button of the first embodiment;
Figure 13 means the outside drawing of the push pedal of the first embodiment;
Figure 14 means the outside drawing of the nail bin frame that nail bin is installed;
Figure 15 means the outside drawing after nail-anvil assembly is removed shell and part adnexa;
Figure 16 means the amplification outside drawing when the left projection of elasticity push button lock inserts in the restraint slot at left push button middle part;
Figure 17 means the amplification outside drawing when the right projection of elasticity push button lock inserts in the restraint slot at right push button middle part;
The surgical linear Endo-GIA that Figure 18 means this utility model the second embodiment when nail bin groupware and nail-anvil assembly are in clamped condition, and, the outside drawing when L shaped push button launches to the right side of nail bin frame;
The surgical linear Endo-GIA that Figure 19 means Figure 18 when nail bin groupware and nail-anvil assembly are in clamped condition, and, the outside drawing when L shaped push button launches to the left side of nail bin frame;
Figure 20 means that the L shaped push button of the surgical linear Endo-GIA of Figure 18 is in the outside drawing when completing firing position;
Figure 21 means the outside drawing after the nail bin groupware of the surgical linear Endo-GIA of Figure 18 is removed shell, nail bin and part adnexa;
Figure 22 means the outside drawing of bottom surface of the nail bin groupware of Figure 21;
Figure 23 means the top view of L shaped push button, slide block, elasticity push button lock and push pedal in Figure 21;
Figure 24 means the 24-24 cutaway view of L shaped push button, slide block, elasticity push button lock and push pedal in Figure 23;
Figure 25 means the amplification outside drawing of the bottom surface that the L shaped push button that launches on the right side and slide block and elasticity push button are locked;
Figure 26 means the amplification outside drawing the when axle of elasticity push button lock inserts in the arcuate groove of the L shaped push button that launches on the right side;
Figure 27 means the amplification outside drawing of the slide block of the second embodiment;
Figure 28 means the amplification outside drawing of the elasticity push button lock of the second embodiment;
Figure 29 means the amplification outside drawing of the L shaped push button of the second embodiment;
Figure 30 means that push pedal, the ejector pin of the second embodiment tiltedly carve the outside drawing with cutter;
Figure 31 means that the ejector pin in Figure 30 is tiltedly carved, the amplification outside drawing (only showing a pair of ejector pin piece and the anastomosis staple of tiltedly carving near ejector pin in figure) of ejector pin piece and anastomosis staple;
The amplification outside drawing of the bottom surface of the L shaped push button that launches on the left of Figure 32 means and slide block and elasticity push button lock;
Figure 33 means the amplification outside drawing the when arcuate groove of the L shaped push button that launches on the left of the axle insertion of elasticity push button lock is interior.
The specific embodiment
The below uses way of example, states by reference to the accompanying drawings the most preferred embodiment of the firing lock of surgical linear Endo-GIA of the present utility model.Scope of the present utility model will be pointed out in the claims.Will be appreciated that some or all accompanying drawing is all for the explanation sketch of most preferred embodiment of the present utility model is described, and the full-size(d) of part shown in not depicting.With reference to being described in detail of most preferred embodiment, understand with will be more readily apparent from reach this utility model above-mentioned with practical ways other objects and advantages.
As shown in Figure 1, direction 1 expression is near, and direction 2 expressions are far away, and direction 3 expressions are left, and direction 4 expressions are right, in direction 5 expressions, under direction 6 expressions.It is vertical that direction 1 and direction 2 form surgical linear Endo-GIA 7, and it is horizontal that direction 3 and direction 4 form surgical linear Endo-GIA 7, and direction 5 and direction 6 form surgical linear Endo-GIA 7 arrowheads.
Below in conjunction with Fig. 1 to Figure 17, shape and the structure of the firing lock 8 of the surgical linear Endo-GIA 7 of this utility model the first embodiment are described, the effect of firing lock 8 is described.
Surgical linear Endo-GIA 7 is comprised of nail bin groupware 9, nail-anvil assembly 10 and clamp hook 11.When nail bin groupware 9 and nail-anvil assembly 10 were in clamped condition, Fig. 1 represented that two push buttons 12 and 13 launch to the left and right sides of nail bin frame respectively when surgical linear Endo-GIA 7; Fig. 2 represents that right side push button 13 is to the side that launch on the right side, left side push button 12 is drawn close nail bin frame 14 of nail bin frame 14; Fig. 3 represents that left side push button 12 is to the side that launch in the left side, right side push button 13 is drawn close nail bin frame 14 of nail bin frame 14.Fig. 4 represents that push button 12 and 13 is in the state when completing firing position.
As Fig. 5 to Figure 14, Figure 30 and shown in Figure 31, nail bin 15 is arranged in nail bin groupware 9, the nail bin frame 14 of nail bin 15 is installed and is arranged on the interior firing lock 8 of nail bin frame 14.Ejector pin piece 16 and anastomosis staple 17 are installed in nail bin 15.A plurality of anastomosis staples 17 respectively are staggered to two rows in the both sides of nail bin cutter groove 18.
As shown in figure 15, nail anvil 19 and nail anvil frame 20 are arranged in nail-anvil assembly 10.Be arranged with the anastomosis staple grooving 21 corresponding with anastomosis staple 17 positions in nail bin 15 on the surface of nail anvil 19.A plurality of anastomosis staple groovings 21 respectively are staggered to two rows on the both side surface of nail anvil cutter groove 22.
As shown in Figure 1 to Figure 3, clamp hook 11 is pivotally connected with nail bin frame 14.After nail bin groupware 9 and nail-anvil assembly 10 closed up mutually, clamp hook 11 rotated around nail bin frame 14 pivots, makes clamp hook 11 hook nail anvil frame 20, and nail bin groupware 9 and nail-anvil assembly 10 are clamped.
As Fig. 5 to shown in Figure 14, firing lock 8 by left side push button 12, right side push button 13, slide block 23, push pedal 24, ejector pin tiltedly carve 25 and cutter 26 form.
As Fig. 5 to Figure 14, Figure 16 and shown in Figure 17, two push buttons 12 and 13 middle part have respectively pivot hole 27 and 28 and restraint slot 29 and 30, front bottom arcuate groove 31 and 32 are arranged respectively, the arc wing 33 that launch the left and right sides of the slide block 23 oriented nail bin framves 14 of far-end, push button 12 and 13 arcuate groove 31 and 32 can be inserted on the arc wing 33 of slide block 23.The middle part of slide block 23 has and is constrained on the elasticity push button lock 34 that moves up and down in slide block 23.On elasticity push button lock 34, chassis 35, pivot 36, spring 37 and left and right projection 38 and 39 are arranged.Be enclosed within on the pivot 36 of elasticity push button lock 34 at slide block 23 middle parts by pivot hole 27 and 28 after two push buttons 12 and the 13 overlapping placements in up and down.Like this, two push buttons 12 and 13 can be separately rotate around the pivot 36 of elasticity push button lock 34.The near-end of the bottom of nail bin frame 14 porose 40.
when push button 12 and 13 is in when pulling the trigger state, the chassis 35 of the elasticity push button lock 34 in slide block 23 springs in the proximal orifice 40 of bottom of nail bin frame 14, slide block 23 is constrained in the near-end of nail bin frame 14, simultaneously, the left and right projection 38 of elasticity push button lock 34 and 39 with restraint slot 29 and 30 disengagings at push button 12 and 13 middle parts, make the arcuate groove 31 and 32 of two push buttons 12 in left and right and 13 can be respectively rotate along arc wing 33 pivots of slide block 23, both the push button 12 in nail bin frame 14 left sides can be launched to the left side of nail bin frame 14, also the push button 13 on nail bin frame 14 right sides can be launched to the right side of nail bin frame 14, two push buttons 12 and 13 of nail bin frame 14 both sides can also be launched to the left and right sides of nail bin frame 14 respectively.
41, two push buttons 12 of the flexible projection of the nearside of slide block 24 and 13 bottom respectively fluted 42 and 43.When each push button 12 and 13 was drawn close the side of nail bin frame 14, the elastic projection 41 of slide block 23 sprang in the groove 42 and 43 of push button 12 and 13, and push button 12 and 13 is constrained on slide block 23.When push button 12 or 13 rotates when launching to the outside of nail bin frame 14 around the pivot 36 of elasticity push button lock 34, push button 12 or 13 groove 42 or 43 shift out the elastic projection 41 of slide block 23.
When beginning to promote push button 12 or 13, act on the constraint on the chassis 35 of the elasticity push button lock 34 in 40 pairs of slide blocks of proximal orifice 23 of bottom that making every effort to overcome on push button 12 or 13 take nail bin frame 14, making push button 12 or 13 promote slide block 23 moves forward and backward in nail bin frame 14, simultaneously, move in the restraint slot 29 and 30 of inserting respectively left and right push button 12 and 13 middle parts on the left and right projection 38 and 39 of elasticity push button lock 34, stop the pivot 36 of the elasticity push button lock 34 of two push buttons 12 and 13 in slide block 23 to rotate.
When push button 12 or 13 reach execution percussion operation, push button 12 or 13 makes slide block 23 move forward in nail bin frame 14 by arcuate groove 31 or the 32 arc wings 33 that promote slide block 23, slide block 23 promotes push pedal 24 again and moves forward in nail bin frame 14, push pedal 24 promote again ejector pin tiltedly carve 25 and cutter 26 move forward in nail bin frame 14, ejector pin tiltedly carve 25 promote successively again each ejector pin piece 16 with anastomosis staple 17 from the interior release of nail bin 15 (seeing Figure 30 and Figure 31).
Move after push button 12 or 13 when carrying out reset operation, because the left and right projection 38 and 39 of the lock of the elasticity push button in slide block 23 34 inserts in the restraint slot 29 and 30 at push buttons 12 and 13 middle parts, make the arcuate groove 31 and 32 of push button 12 and 13 to rotate along arc wing 33 pivots of slide block 23.At this moment, the restraint slot 29 or 30 of push button 12 or 13 by the middle part makes slide block 23 move backward in nail bin frame 14 with the projection 38 or 39 of the lock of the elasticity push button in movable slider 23 34, slide block 23 promotes push pedal 24 again and moves backward in nail bin frame 14, push pedal 24 promote again ejector pin tiltedly carve 25 and cutter 26 move backward in nail bin frame 14, until the chassis 35 of elasticity push button lock 34 springs in the proximal orifice 40 of bottom of nail bin frame 14, slide block 23 is constrained in the near-end of nail bin frame 14, firing lock 8 is resetted.
The near-end of push pedal 24 has hook 44.Be arranged on the right push button 13 on slide block 23 tops arc step 45 is arranged.The hook 44 of the near-end of push pedal 24 is inserted on arc step 45 on the right push button 13 that is arranged on slide block 23 tops, the overlapping push button 12 and 13 that is placed on slide block 23 in up and down, two of left and right is constrained in slide block 23 head lamp brush guard pivots rotate.
Below in conjunction with Figure 18 to Figure 33, shape and the structure of the firing lock 51 of the surgical linear Endo-GIA 50 of this utility model the second embodiment are described, the effect of firing lock 51 is described.
Surgical linear Endo-GIA 50 is comprised of nail bin groupware 52, nail-anvil assembly 53 and clamp hook 54.When Figure 18 and Figure 19 were illustrated respectively in nail bin groupware 52 and are in clamped condition with nail-anvil assembly 53, L shaped push button 55 launched to the right side of nail bin frame 14 and the state the during expansion of left side.Figure 20 represents that L shaped push button 55 is in the state when completing firing position.
As Figure 21, Figure 22, Figure 30 and shown in Figure 31, nail bin 15 is arranged in nail bin groupware 52, the nail bin frame 14 of nail bin 15 is installed and is arranged on the interior firing lock 51 of nail bin frame 14.Ejector pin piece 16 and anastomosis staple 17 are installed in nail bin 15.A plurality of anastomosis staples 17 respectively are staggered to two rows in the both sides of nail bin cutter groove 18.
As shown in figure 15, nail anvil 19 and nail anvil frame 20 are arranged in nail-anvil assembly 53.Be arranged with the anastomosis staple grooving 21 corresponding with anastomosis staple 17 positions in nail bin 15 on the surface of nail anvil 19.A plurality of anastomosis staple groovings 21 respectively are staggered to two rows on the both side surface of nail anvil cutter groove 22.
As Figure 18 and shown in Figure 19, clamp hook 54 is pivotally connected with nail bin frame 14.After nail bin groupware 52 and nail-anvil assembly 53 closed up mutually, clamp hook 54 rotated around nail bin frame 14 pivots, makes clamp hook 54 hook nail anvil frame 20, and nail bin groupware 52 and nail-anvil assembly 53 are clamped.
As Figure 21 and shown in Figure 22, firing lock 51 by L shaped push button 55, slide block 56, push pedal 57, ejector pin tiltedly carve 25 and cutter 26 form.
To shown in Figure 33, L shaped push button 55 has arcuate groove 58 as Figure 21.The arc wing 59 that launch the left and right sides of the slide block 56 oriented nail bin framves 14 of far-end.The arcuate groove 58 of L shaped push button 55 is inserted on the arc wing 59 of slide block 56.After the arcuate groove 58 of L shaped push button 55 rotated along arc wing 59 pivots of slide block 56, L shaped push button 55 both can launch to the left side of nail bin frame 14, also can launch to the right side of nail bin frame 14.
The near-end of slide block 56 has and is constrained on the elasticity push button lock 60 that moves up and down in slide block 56.On elasticity push button lock 60, chassis 61, axle 62 and spring 63 are arranged.The near-end of the bottom of nail bin frame 14 porose 40.When L shaped push button 55 is in when pulling the trigger state, the chassis 61 of the elasticity push button lock 60 in slide block 56 springs in the proximal orifice 40 of bottom of nail bin frame 14, slide block 56 is constrained in the near-end of nail bin frame 14, simultaneously, the axle 62 of elasticity push button lock 60 breaks away from the arcuate groove of L shaped push button 55 58, L shaped push button 55 make the arcuate groove 58 of L shaped push button 55 to rotate along arc wing 56 pivots of slide block 56, so that both can launch to the left side of nail bin frame 14, also can launch to the right side of nail bin frame 14.
The near-end of push pedal 57 has hook 64, on L shaped push button 55, arc step 65 is arranged.The hook 64 of the near-end of push pedal 57 is inserted on arc step 65 on L shaped push button 55, L shaped push button 55 is constrained in slide block 57 head lamp brush guard pivots rotate.
When beginning to promote L shaped push button 55, act on the constraint on the chassis 61 of the elasticity push button lock 60 in the 40 pairs of slide blocks of the proximal orifice of making every effort to overcome the bottom that takes nail bin frame 14 56 on L shaped push button 55, making L shaped push button 55 promote slide block 56 moves forward and backward in nail bin frame 14, simultaneously, move in the arcuate groove 58 that inserts L shaped push button 55 on the axle 62 of elasticity push button lock 60.
When the percussion operation is carried out in L shaped push button 55 reaches, L shaped push button 55 makes slide block 56 move forward in nail bin frame 14 by the arc wing 59 that arcuate groove 58 promotes slide block 56, slide block 56 promotes push pedal 57 again and moves forward in nail bin frame 14, push pedal 57 promote again ejector pin tiltedly carve 25 and cutter 26 move forward in nail bin frame 14, ejector pin tiltedly carve 25 promote successively again each ejector pin piece 16 with anastomosis staple 17 from the interior release of nail bin 15 (seeing Figure 30 and Figure 31).
Move after L shaped push button 55 when carrying out reset operation, because the axle 62 of the lock of the elasticity push button in slide block 56 60 inserts in the arcuate groove 58 of L shaped push buttons 55, make the arcuate groove 58 of L shaped push button 55 to rotate along arc wing 59 pivots of slide block 56.At this moment, L shaped push button 55 makes slide block 56 move backward in nail bin frame 14 by arcuate groove 58 with the axle 62 of the lock of the elasticity push button in movable slider 56 60, slide block 56 promotes push pedal 57 again and moves backward in nail bin frame 14, push pedal 57 promote again ejector pin tiltedly carve 25 and cutter 26 move backward in nail bin frame 14, until the chassis 61 of elasticity push button lock 60 springs in the proximal orifice 40 of bottom of nail bin frame 14, slide block 56 is constrained in the near-end of nail bin frame 14, firing lock 51 is resetted.
On the near-end of push pedal 57 and slide block 56 respectively porose 66 and 67, there is respectively elongated slot 68 both sides of nail bin frame 14, with in the hole 66 and 67 of pin 69 insertion push pedals 57 and slide block 56 and in the elongated slot 68 of nail bin frame 14, make slide block 56 to promote push pedals 57 by pin 69 and move forward and backward in nail bin frame 14.
The far-end of push pedal 57 has U-shaped fork 70.Ejector pin is tiltedly carved U-lag 71 on 25.The far-end U-shaped of push pedal 57 fork 70 inserts ejector pins and tiltedly carves in U-lag 71 on 25, makes push pedal 57 can promote ejector pin and tiltedly carves 25 and move forward and backward in nail bin frame 14.
There is elongated slot 72 at the middle part of push pedal 57.There is alignment pin 73 at the middle part of nail bin frame 14.The alignment pin 73 at nail bin frame 14 middle parts inserts in the elongated slot 72 of push pedal 57.When L shaped push button 55 was in until firing position, alignment pin 73 gears at nail bin frame 14 middle parts were at the far-end of the elongated slot 72 of push pedal 57, and constraint push pedal 57 only can move forward in nail bin frame 14.When L shaped push button 55 is in when completing firing position, alignment pin 73 gears at nail bin frame 14 middle parts are in the proximal end of the elongated slot 72 of push pedal 57, and constraint push pedal 57 only can be moved in nail bin frame 14 backward.
Like this, because push button makes slide block move forward in the nail bin frame by the wing that arcuate groove promotes slide block, therefore the point of force application of the slide block of the outstanding position of push button in push button and the nail bin frame close to, can reduce as far as possible slide block and the frictional force between the nail bin frame and the distortion of slide block that moment of torsion produces, thereby reach the result of use of the identical resistance of cutting that reduces firing lock.
According to above-mentioned detailed introduction as can be known, compare with existing various surgical linear Endo-GIAs, the firing lock of surgical linear Endo-GIA of the present utility model has following technique effect:
The push button of the firing lock of more existing surgical linear Endo-GIAs is fixed in the one-sided of nail bin groupware.When the push button promotion slide block of firing lock moves forward in the nail bin frame, the slipper push push pedal moves forward in the nail bin frame, push pedal promotes ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin.The ejector pin piece is released anastomosis staple in nail bin, the nail tip of anastomosis staple is pressed on the grooving of nail anvil, makes two nail lower limbs of anastomosis staple along the grooving bending forming, reaches the operation purpose of will tissue coincideing.The accurate operation purpose of coincideing of tissue of coincideing will be waited in order to guarantee to reach, the push button of firing lock needs continuously the anastomosis staple of 80 left and right to be released in nail bin without a break when percussion, and making two of anastomosis staple nail lower limbs along the grooving bending forming, the active force that surgical doctor is applied on push button is larger.The unsatisfactory place of the firing lock of the surgical linear Endo-GIA of this style is: when nail bin groupware and the clamped hook of nail-anvil assembly clamp will be when identical clamp tissue be between nail anvil and nail bin, treated the impact of the anatomical position of identical tissue, the position at the push button place of one-sided fixed placement may be not easy to surgical doctor active force is applied to push button, thereby impact reaching the operation purpose that the tissue of waiting to coincide accurately coincide.The M shape push button of the firing lock of existing other surgical linear Endo-GIAs can be in being arranged on the nail bin frame the pivot of slide block rotate.After the pivot of slide block rotated, M shape push button both can be outstanding to the left side of nail bin frame when M shape push button, also can be outstanding to the right side of nail bin frame, and be convenient to surgical doctor and select to apply the position that acts on the power on M shape push button.The push button of the existing firing lock that also has some surgical linear Endo-GIAs can be in being arranged on the nail bin frame the pivot of slide block rotate.After the pivot of slide block rotated, push button both can be outstanding to the left side of nail bin frame when push button, also can be outstanding to the right side of nail bin frame, be convenient to the position that the surgical doctor selection applies the push button of active force.The unsatisfactory place of the firing lock of the surgical linear Endo-GIA of above-mentioned three kinds of styles is: due to when the percussion operation is carried out in the push button reach, the promotion position of push button all the slide block in push button and the nail bin frame point of force application away from, therefore, the power that push button acts on slide block forms cutting coincide useful thrust and useless moment of torsion, frictional force between moment of torsion increase slide block and nail bin frame and the distortion of slide block, thereby the resistance of the percussion operation that the cutting of increase firing lock coincide.Therefore the firing lock of surgical linear Endo-GIA also need improve.
The push button of the firing lock of surgical linear Endo-GIA of the present utility model both can be for single L shaped push button, also can be two push buttons of apportion in the left and right sides of nail bin frame.Push button has arcuate groove, the arc wing that launch the left and right sides of the oriented nail bin frame of slide block far-end, and the arcuate groove of push button is inserted on the arc wing of slide block.When push button is in when pulling the trigger state, the chassis of the elasticity push button lock in slide block springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, elasticity push button lock breaks away from push button, push button make the arcuate groove of push button to rotate along the arc wing pivot of slide block, so that both can launch to the left side of nail bin frame, also can launch to the right side of nail bin frame; When beginning to promote push button, act on making every effort to overcome on push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, make push button can promote slide block and move forward and backward in the nail bin frame, simultaneously, the elasticity push button is locked to move and is inserted in push button; When the percussion operation is carried out in the push button reach, push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes push pedal, ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin; Move after push button when carrying out reset operation, because the lock of the elasticity push button in slide block inserts in push button, make the arcuate groove of push button to rotate along the arc wing pivot of slide block, at this moment, elasticity push button lock in push button band movable slider makes slide block move backward in the nail bin frame, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, firing lock is resetted.
compare with existing surgical linear Endo-GIA, the surgeon is when using surgical linear Endo-GIA of the present utility model, because the push button of the firing lock of surgical linear Endo-GIA of the present utility model makes slide block move forward in the nail bin frame by the wing that arcuate groove promotes slide block, therefore the point of force application of the slide block of the outstanding position of push button in push button and the nail bin frame close to, can reduce as far as possible slide block and the frictional force between the nail bin frame and the distortion of slide block that moment of torsion produces, thereby reach the result of use that reduces the resistance of firing lock when the operation that the execution cutting coincide.
So can find out that the above-mentioned target of stating comprises by front those shown targets of explanation being effectively achieved.Described here is only the typical best form of implementation of this utility model application, can do some to said structure and change also without prejudice to spirit and scope of the present utility model.This utility model is not limited to the detail of stating here, is apparent any improvement or remodeling and should keep affiliated field secondary technology personnel as stating in the restriction of claim.
Claims (10)
1. the firing lock of a surgical linear Endo-GIA, described surgical linear Endo-GIA is comprised of nail bin groupware, nail-anvil assembly and clamp hook;
Nail bin is arranged in described nail bin groupware, the nail bin frame of described nail bin is installed and is arranged on the interior firing lock of described nail bin frame, it is linear that nail bin is, ejector pin piece and anastomosis staple are installed in nail bin, and a plurality of described anastomosis staples are staggered to two or more rows in nail bin;
Nail anvil and nail anvil frame are arranged in described nail-anvil assembly, described nail anvil is linear, be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in nail bin on the surface of nail anvil, a plurality of described anastomosis staple groovings are staggered to two or more rows on the surface of nail anvil;
Described clamp hook and nail bin frame are pivotally connected; After nail bin groupware and nail-anvil assembly closed up mutually, clamp hook rotated around nail bin frame pivot, makes described clamp hook hook described nail anvil frame, with nail bin groupware and nail-anvil assembly clamping;
It is characterized in that: described firing lock by slide block, push pedal, ejector pin tiltedly carve, cutter and single L shaped push button form, described L shaped push button has arcuate groove, the arc wing that launch the left and right sides of the oriented nail bin frame of described slide block far-end, the arcuate groove of described L shaped push button is inserted on the arc wing of described slide block; After the arcuate groove of L shaped push button rotated along the arc wing pivot of slide block, L shaped push button both can launch to the left side of nail bin frame, also can launch to the right side of nail bin frame.
2. the firing lock of surgical linear Endo-GIA according to claim 1, it is characterized in that, the near-end of described slide block has and is constrained on the elasticity push button lock that moves up and down in slide block, and described elasticity push button has been locked chassis, axle and spring, and the near-end of the bottom of described nail bin frame is porose;
When described L shaped push button is in when pulling the trigger state, the chassis of the elasticity push button lock in described slide block springs in the proximal orifice of bottom of described nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, the axle of described elasticity push button lock and the arcuate groove of described L shaped push button break away from, L shaped push button make the arcuate groove of L shaped push button to rotate along the arc wing pivot of described slide block, so that both can launch to the left side of nail bin frame, also can launch to the right side of nail bin frame;
When beginning to promote L shaped push button, act on making every effort to overcome on L shaped push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, making L shaped push button can promote slide block moves forward and backward in the nail bin frame, simultaneously, move in the arcuate groove that inserts L shaped push button on the axle of elasticity push button lock;
When the percussion operation is carried out in L shaped push button reach, L shaped push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes described push pedal, ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each described ejector pin piece again described anastomosis staple is released in described nail bin;
Move after L shaped push button when carrying out reset operation, the axle of locking due to the elasticity push button in slide block inserts in the arcuate groove of L shaped push button, make the arcuate groove of L shaped push button to rotate along the arc wing pivot of slide block, at this moment, L shaped push button makes slide block move backward in the nail bin frame by the axle of the lock of the elasticity push button in arcuate groove band movable slider, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, described firing lock is resetted.
3. the firing lock of surgical linear Endo-GIA according to claim 1, it is characterized in that, the near-end of described push pedal has hook, on described L shaped push button, the arc step is arranged, the hook of the near-end of described push pedal is inserted on arc step on described L shaped push button, L shaped push button is constrained in the slide block head lamp brush guard pivot rotate.
4. the firing lock of surgical linear Endo-GIA according to claim 1, it is characterized in that, porose on the near-end of described push pedal and described slide block, there is elongated slot the both sides of described nail bin frame, pin inserted in the hole of described push pedal and slide block and in the elongated slot of described nail bin frame, make slide block to promote push pedal by described pin and move forward and backward in the nail bin frame.
5. the firing lock of surgical linear Endo-GIA according to claim 1, is characterized in that, there is elongated slot at the middle part of described push pedal, and there is alignment pin at the middle part of described nail bin frame, and the alignment pin in the middle part of described nail bin frame inserts in the elongated slot of described push pedal; When described push button was in until firing position, the alignment pin gear in the middle part of the nail bin frame was at the far-end of the elongated slot of push pedal, and the constraint push pedal only can move forward in the nail bin frame; When push button is in when completing firing position, the alignment pin gear at nail bin frame middle part is in the proximal end of the elongated slot of push pedal, and the constraint push pedal only can be moved in the nail bin frame backward.
6. the firing lock of a surgical linear Endo-GIA, described surgical linear Endo-GIA is comprised of nail bin groupware, nail-anvil assembly and clamp hook;
Nail bin is arranged in described nail bin groupware, the nail bin frame of described nail bin is installed and is arranged on the interior firing lock of described nail bin frame, it is linear that nail bin is, ejector pin piece and anastomosis staple are installed in nail bin, and a plurality of described anastomosis staples are staggered to two or more rows in nail bin;
Nail anvil and nail anvil frame are arranged in described nail-anvil assembly, described nail anvil is linear, be arranged with the anastomosis staple grooving corresponding with the anastomosis staple position in nail bin on the surface of nail anvil, a plurality of described anastomosis staple groovings are staggered to two or more rows on the surface of nail anvil;
Described clamp hook and nail bin frame are pivotally connected; After nail bin groupware and nail-anvil assembly closed up mutually, clamp hook rotated around nail bin frame pivot, makes described clamp hook hook described nail anvil frame, with nail bin groupware and nail-anvil assembly clamping;
it is characterized in that: described firing lock is by slide block, push pedal, ejector pin is tiltedly carved, cutter and push button form, described push button is for dividing two push buttons of the left and right sides that is listed in described nail bin frame, there are respectively pivot hole and restraint slot in the middle part of two push buttons in described left and right, arcuate groove is arranged respectively at front bottom, the arc wing that launch the left and right sides of the oriented described nail bin frame of described slide block far-end, the arcuate groove of two push buttons in described left and right is inserted on the arc wing of described slide block, the middle part of slide block has and is constrained on the elasticity push button lock that moves up and down in slide block, described elasticity push button has been locked the chassis, pivot, spring and left and right projection, be enclosed within on the pivot of described elasticity push button lock at slide block middle part by described pivot hole after the overlapping placement in up and down of two push buttons, the pivot that makes two of left and right push button to lock around the elasticity push button separately rotates, the near-end of the bottom of described nail bin frame is porose,
when push button is in when pulling the trigger state, the chassis of the described elasticity push button lock in slide block springs in the proximal orifice of bottom of described nail bin frame, slide block is constrained in the near-end of nail bin frame, simultaneously, left and right projection and the restraint slot in the middle part of described push button of described elasticity push button lock break away from, make the arcuate groove of two push buttons in left and right can be respectively rotate along the arc wing pivot of slide block, both the push button on the left of the nail bin frame can be launched to the left side of nail bin frame, also the push button on nail bin frame right side can be launched to the right side of nail bin frame, two push buttons of nail bin frame both sides can also be launched to the left and right sides of nail bin frame respectively,
When beginning to promote push button, act on making every effort to overcome on push button and take the proximal orifice of bottom of nail bin frame to the constraint on the chassis of the elasticity push button in slide block lock, making push button promote slide block moves forward and backward in the nail bin frame, simultaneously, move in the restraint slot of inserting respectively push button middle part, left and right on the left and right projection of elasticity push button lock, stop the pivot of the elasticity push button lock of two push buttons in slide block to rotate;
When the percussion operation is carried out in the push button reach, push button makes slide block move forward in the nail bin frame by the arc wing that arcuate groove promotes slide block, slide block promotes push pedal, ejector pin again and tiltedly carves with cutter and move forward in the nail bin frame, and ejector pin is tiltedly carved and promoted successively each ejector pin piece again anastomosis staple is released in nail bin;
Move after push button when carrying out reset operation, in the restraint slot in the middle part of the left and right projection insertion push button of the lock of the elasticity push button in slide block, make the arcuate groove of push button to rotate along the arc wing pivot of slide block.At this moment, push button makes slide block move backward in the nail bin frame by the projection of the lock of the elasticity push button in the restraint slot band movable slider at middle part, until the chassis of elasticity push button lock springs in the proximal orifice of bottom of nail bin frame, slide block is constrained in the near-end of nail bin frame, firing lock is resetted.
7. the firing lock of surgical linear Endo-GIA according to claim 6, is characterized in that, the flexible projection of the nearside of described slide block, and the bottom of two push buttons in described left and right is fluted respectively.When each push button was drawn close the side of described nail bin frame, the elastic projection of described slide block sprang in the groove of described push button, and push button is constrained on slide block; When the pivot rotation of described elasticity push button lock launched to the outside of nail bin frame, the groove of push button shifted out the elastic projection of slide block when each push button.
8. the firing lock of surgical linear Endo-GIA according to claim 6, it is characterized in that, the near-end of described push pedal has hook, on the described push button that is arranged on described slide block top, the arc step is arranged, the hook of the near-end of described push pedal is inserted on arc step on the described push button that is arranged on slide block top, two of left and right push button is constrained in the slide block head lamp brush guard pivot rotate.
9. the firing lock of surgical linear Endo-GIA according to claim 6, it is characterized in that, porose on the near-end of described push pedal and described slide block, there is elongated slot the both sides of described nail bin frame, pin inserted in the hole of described push pedal and slide block and in the elongated slot of described nail bin frame, make slide block to promote push pedal by described pin and move forward and backward in the nail bin frame.
10. the firing lock of surgical linear Endo-GIA according to claim 6, is characterized in that, there is elongated slot at the middle part of described push pedal, and there is alignment pin at the middle part of described nail bin frame, and the alignment pin in the middle part of described nail bin frame inserts in the elongated slot of described push pedal; When described push button was in until firing position, the alignment pin gear in the middle part of the nail bin frame was at the far-end of the elongated slot of push pedal, and the constraint push pedal only can move forward in the nail bin frame; When push button is in when completing firing position, the alignment pin gear at nail bin frame middle part is in the proximal end of the elongated slot of push pedal, and the constraint push pedal only can be moved in the nail bin frame backward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658931 CN202942167U (en) | 2012-12-04 | 2012-12-04 | Percussion mechanism for surgical linear incision anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220658931 CN202942167U (en) | 2012-12-04 | 2012-12-04 | Percussion mechanism for surgical linear incision anastomat |
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| Publication Number | Publication Date |
|---|---|
| CN202942167U true CN202942167U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220658931 Withdrawn - After Issue CN202942167U (en) | 2012-12-04 | 2012-12-04 | Percussion mechanism for surgical linear incision anastomat |
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| CN (1) | CN202942167U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654899A (en) * | 2012-09-14 | 2014-03-26 | 苏州天臣国际医疗科技有限公司 | Straight-line stitching and cutting device |
| CN103845093A (en) * | 2012-12-04 | 2014-06-11 | 常州市康迪医用吻合器有限公司 | Trigger mechanism for surgical linear cutter stapler |
| WO2020229943A1 (en) * | 2019-05-13 | 2020-11-19 | Ethicon Llc | Actuator support structure for surgical stapler |
-
2012
- 2012-12-04 CN CN 201220658931 patent/CN202942167U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103654899A (en) * | 2012-09-14 | 2014-03-26 | 苏州天臣国际医疗科技有限公司 | Straight-line stitching and cutting device |
| CN103654899B (en) * | 2012-09-14 | 2016-08-17 | 苏州天臣国际医疗科技有限公司 | Linear stapling cutter |
| CN103845093A (en) * | 2012-12-04 | 2014-06-11 | 常州市康迪医用吻合器有限公司 | Trigger mechanism for surgical linear cutter stapler |
| CN103845093B (en) * | 2012-12-04 | 2016-06-08 | 常州市康迪医用吻合器有限公司 | The firing lock of surgical linear Endo-GIA |
| WO2020229943A1 (en) * | 2019-05-13 | 2020-11-19 | Ethicon Llc | Actuator support structure for surgical stapler |
| EP3738523A3 (en) * | 2019-05-13 | 2021-01-13 | Ethicon LLC | Actuator support structure for surgical stapler |
| US11166715B2 (en) | 2019-05-13 | 2021-11-09 | Cilag Gmbh International | Actuator support structure for surgical stapler |
| CN113853171A (en) * | 2019-05-13 | 2021-12-28 | 西拉格国际有限公司 | Actuator support structure for surgical stapler |
| US11801049B2 (en) | 2019-05-13 | 2023-10-31 | Cilag Gmbh International | Actuator support structure for surgical stapler |
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