CN103142272B - Knob assembly and circular tube type anastomat with same - Google Patents
Knob assembly and circular tube type anastomat with same Download PDFInfo
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- CN103142272B CN103142272B CN201210578024.6A CN201210578024A CN103142272B CN 103142272 B CN103142272 B CN 103142272B CN 201210578024 A CN201210578024 A CN 201210578024A CN 103142272 B CN103142272 B CN 103142272B
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Abstract
The invention provides a knob assembly and a circular tube type anastomat with the knob assembly. The knob assembly comprises a knob body, and a slow threaded part and a locating plate detachably arranged in the knob body, wherein the locating plate is matched with the knob body so as to fix relative positions of the slow threaded part and the knob body. Compared with the prior art, the knob assembly and the circular tube type anastomat with the knob assembly are more convenient to assemble.
Description
Technical field
The present invention relates to a kind of knob assembly and be provided with the circular-pipe anastomat of this knob assembly, belong to technical field of medical instruments.
Background technology
A kind of medical apparatus and instruments that circular-pipe anastomat often uses when being and carrying out surgical operation to physiological tissues such as digestive tract.This kind of anastomat adopts bookbinding form axially mostly, organize containing for two sections when coincideing, form circular anastomosis ring at organization internal, this apparatus can make that the body that produces in operation process is hemorrhage can discharge together along with content, and Post operation collective organization ratio is easier to healing.
Existingly, circular-pipe anastomat comprises anastomat body, is flexibly connected the operating handle of described anastomat body and the anvil assembly with described body fits.Described anastomat body comprises annular nail bin, the cutting knife of being located at far-end.Described anvil assembly comprises round table-like nail anvil, and is fixed on the nail-anvil cap at its top, is arranged on the cutter anvil of nail anvil inside, and the pin anvil shaft be removably connected with anastomat body.Usually, by the knob assembly of rotational circle tube type anastomat, make its drive drive screw drive anvil assembly near or away from described annular nail bin, cutting knife.
But existing knob assembly, by ultrasonic bonding molding, is processed cumbersome.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of knob assembly and being provided with the circular-pipe anastomat of this knob assembly.
For achieving the above object, a kind of knob assembly of the present invention, comprising:
Described knob assembly comprises a knob body, be removably mounted on slow screw element in described knob body and location-plate, and described location-plate coordinates with described knob body, the relative position of fixing described slow screw element and described knob body.
As a further improvement on the present invention, described knob body comprises a knob, described knob is provided with a receiving space, is provided with at least one knob protruding in described receiving space, and described location-plate comprises and location-plate groove protruding with the location-plate of described knob male cooperation.
As a further improvement on the present invention, the end face of described location-plate projection and the end face of described knob projection inconsistent.
As a further improvement on the present invention, described location-plate also comprises a hole coordinated with described slow screw element.
As a further improvement on the present invention, described knob assembly also comprises the fast threaded portion distally extended by described knob, and described slow screw element comprises a stopper slot be connected with described fast threaded portion proximal end.
As a further improvement on the present invention, described knob assembly also comprises the bonnet that connects described knob body removably, and described bonnet comprises the bonnet groove with described knob male cooperation, and protruding with the bonnet of described location-plate groove fit.
Correspondingly, a kind of circular-pipe anastomat of the present invention, comprising:
Comprise body, the operating handle be connected with described body, knob assembly and anvil assembly, wherein, described knob assembly comprises a knob body, be removably mounted on slow screw element in described knob body and location-plate, described location-plate coordinates with described knob body, the relative position of fixing described slow screw element and described knob body.
As a further improvement on the present invention, described knob body comprises a knob, described knob is provided with a receiving space, is provided with at least one knob protruding in described receiving space, and described location-plate comprises and location-plate groove protruding with the location-plate of described knob male cooperation.
As a further improvement on the present invention, the end face of described location-plate projection and the end face of described knob projection inconsistent.
As a further improvement on the present invention, described location-plate also comprises a hole coordinated with described slow screw element.
As a further improvement on the present invention, described knob assembly also comprises the fast threaded portion distally extended by described knob, and described slow screw element comprises a stopper slot be connected with described fast threaded portion proximal end.
As a further improvement on the present invention, described knob assembly also comprises the bonnet that connects described knob body removably, and described bonnet comprises the bonnet groove with described knob male cooperation, and protruding with the bonnet of described location-plate groove fit.
Compared with prior art, knob assembly of the present invention and be provided with this knob assembly circular-pipe anastomat assembling more convenient.
Accompanying drawing explanation
Fig. 1 is the sectional view of circular-pipe anastomat in an embodiment of the present invention;
Fig. 2 is the explosive view of circular-pipe anastomat in an embodiment of the present invention;
Fig. 3 is the enlarged drawing of knob portion in Fig. 2;
Fig. 4 is the sectional view of knob body in an embodiment of the present invention;
Fig. 5 is the sectional view of slow screw element in an embodiment of the present invention;
Fig. 6 is the enlarged drawing of left shell in Fig. 2;
Fig. 7 is the enlarged drawing of Fig. 2 pointer assembly;
Fig. 8 is the explosive view of another embodiment pointer assembly of the present invention;
Fig. 9 is the sectional view of another embodiment pointer assembly of the present invention;
Figure 10 is the enlarged drawing of banking pin in Fig. 2;
Figure 11 is the enlarged drawing of operating handle in Fig. 2;
Figure 12 is the side view of operating handle in another embodiment of the present invention;
Figure 13 is the enlarged drawing of ejector pin bar in Fig. 2;
Figure 14 is the sectional view of ejector pin bar in an embodiment of the present invention;
Figure 15 be in an embodiment of the present invention circular-pipe anastomat be in can partially cut-away side view under cock;
Figure 16 is that in an embodiment of the present invention, circular-pipe anastomat is in the partially cut-away side view under anti-secondary cock.
Detailed description of the invention
Below in conjunction with each embodiment shown in the drawings, the present invention is described in detail; but should be noted that; these embodiments are not limitation of the present invention; those of ordinary skill in the art are according to these embodiment institute work energy, method or structural equivalent transformations or substitute, and all belong within protection scope of the present invention.
Expression position described in the present invention and the word in direction are all using exercises on apparatus author as reference, and be near-end near one end of operator, the one end away from operator is far-end.
As shown in Figure 1 and Figure 2, in an embodiment of the present invention, the anvil assembly 20 that circular-pipe anastomat comprises anastomat body 10, coordinates with described anastomat body 10, and the operating handle 30 of pivotally connected described body 10.
Described anastomat body 10 comprises the housing 101 of the hollow being positioned at circular-pipe anastomat near-end, and be positioned at the nail barrel 103 of circular-pipe anastomat far-end, described nail barrel 103 connects described housing 101 by retainer ring 102, pushing slice of nail 105 and the annular nail bin 107 being positioned at pushing slice of nail 105 far-end is provided with in described nail barrel 103, also be provided with annular cutting knife 106 in this pushing slice of nail 105, described annular nail bin 107 is provided with some nail mouthes on its end face.
Described anvil assembly 20 comprises the annular nail anvil 201 coordinating described annular nail bin 107, the nail-anvil cap 203 being fixed on this annular nail anvil 201 top, is arranged on the endless knife anvil (not shown) of annular nail anvil 201 inside, and for connecting the pin anvil shaft 205 of anastomat body 10 removably.Wherein, described endless knife anvil is arranged between described pin anvil shaft 205 and described annular nail anvil 201.
Described circular-pipe anastomat is also included in the knob 40 that near-end connects described housing 10.
Described knob 40 is flexibly connected one and is located at drive screw 109 in described anastomat body 10, and can be reciprocating in the longitudinal axis (Z axis) direction of circular-pipe anastomat by drive screw 109 described in the slow screw thread arranged in this knob 40 and fast screw drive.The screw thread ratio of described slow screw thread and fast screw thread and effect, those of ordinary skill in the art skillfully grasp by common practise, do not repeat them here.
The far-end of described drive screw 109 connects described pin anvil shaft 205 removably, so, when described pin anvil shaft 205 connects described drive screw 109, namely by rotary knob 40, drive described anvil assembly 20 near described anastomat body 10, make the annular nail anvil 201 of anvil assembly 20 and the annular nail bin 107 of anastomat body clamp the tissue tightened up by purse wire.
Shown in composition graphs 3, Fig. 4, Fig. 5, in an embodiment of the present invention, described knob assembly 40 comprises knob body 401, slow screw element 403, location-plate 405, and bonnet 407.
In an embodiment of the present invention, described knob body 401 comprises knob 4011, and the fast threaded portion 4013 distally extended by described knob 4011.
Fast screw thread is provided with in described fast threaded portion 4013.
Described slow screw element 403 also comprises a stopper slot 4032 be connected with described fast threaded portion proximal end, and the relative position of fixing described slow screw element and described knob body, makes the relative knob body of slow screw element not relatively rotate.
Be provided with a receiving space in described knob 4011, described receiving space inwall is provided with at least one knob projection 4015.
In an embodiment of the present invention, in described slow screw element 403, be provided with the slow screw thread of hollow, described slow screw thread and described fast threaded communication.Described slow screw element 403 can be contained in described receiving space, and between described fast screw thread and described knob projection 4015.The near-end of described slow screw element 403 is also provided with connecting portion 4031, and described connecting portion 4031 can be flexibly connected with described location-plate 405.
In an embodiment of the present invention, described location-plate 405 is provided with the location-plate protruding 4051 matched with described knob projection 4015 and the location-plate groove 4053 matched with described knob projection 4015.Further, described location-plate is also provided with the hole 4055 of a hollow, and it is peripheral that described hole 4055 can be sheathed on described connecting portion 4031.
In an embodiment of the present invention, described bonnet 407 can be connected removably with described knob body 401, the far-end of described bonnet 407 is provided with the bonnet groove 4071 matched with described operating portion projection 4015, and the bonnet projection 4073 matched with described location-plate groove 4053.
When assembling, first slow screw element 403 is loaded in the receiving space of knob body 401, stopper slot 4032 on slow screw element 403 is connected with described fast threaded portion proximal end, and the relative position of fixing slow screw element and knob body, makes the relative knob body of slow screw element not relatively rotate.The knob projection 4015 of again the location-plate groove 4053 on location-plate 405 being aimed at receiving space inwall is mounted in this receiving space, be located between described slow screw element 403 and described knob projection 4015, then, this location-plate 405 is rotated to an angle, location-plate protruding 4051 is allowed to aim at described knob projection 4015, make the end face of the end face of described location-plate projection 4051 and described knob projection 4015 inconsistent, location-plate 405 is fixed in described receiving space, so, namely coordinate with described knob body 401 by location-plate 405, the relative position of fixing described slow screw element 403 and described knob body 401.Finally, after bonnet groove 4071 is corresponding with knob projection 4015, bonnet protruding 4073 and location-plate groove 4053, by bonnet 407 clamping to described receiving space.
Knob assembly of the present invention, by assembling formation simply and easily, overcomes existing knob assembly and by ultrasonic bonding molding, must process comparatively troublesome defect.
As shown in Figure 1 and Figure 2, in an embodiment of the present invention, circular-pipe anastomat also comprises the pointer member 111, the banking pin 113 that are arranged in described housing 101, and ejector pin bar 115.
Described pointer member 111 comprises can firing position and safety position, described can firing position time, do not produce active force between described operating handle 30 and described pointer member, namely described pointer member can not hinder the motion of described handle, and squeeze grip can pull the trigger apparatus; When described safety position, if press described handle, described pointer member can hinder the motion of described handle, and namely described operating handle applies a pressure to described pointer member, now cannot pull the trigger.Whether this pointer member 111 can point out operator's apparatus to arrive can firing position.
Described banking pin 113 has an initial position and anti-secondary firing position, when described banking pin is positioned at its initial position, has certain interval between described operating handle 30 and described banking pin; When described banking pin is positioned at its anti-secondary firing position, described operating handle contacts described banking pin.
Described ejector pin bar 115 has an initial position and a firing position, and described operating handle can drive ejector pin bar to move from the initial position of ejector pin bar to the firing position of ejector pin bar, pulls the trigger to drive pushing slice of nail 105.The near-end of described ejector pin bar is provided with an ejector pin bar projection 1153, and when the initial position of banking pin, described ejector pin bar projection is located between described operating handle and described banking pin; When the anti-secondary firing position of banking pin, described banking pin is located between described ejector pin bar projection and described operating handle.
Described housing 101 comprises left shell 101a and right shell body 101b symmetrically arranged with described left shell 101a.Below left shell 101a is only highlighted.
Shown in composition graphs 6, described left shell 101a comprises a grip part, and described left shell 101a is provided with the first baffle 1011a, form installing hole, pointer bearing pin track groove 1015a, operating handle bearing pin installing hole 1017a, banking pin fixed axis 1019a, banking pin track groove 1021a, and the second baffle 1023a.
Described first baffle 1011a is arranged near the near-end of described left shell 101a, and described second baffle 1023a is arranged near the far-end of described left shell 101a.
Described form installing hole, pointer bearing pin track groove 1015a, operating handle bearing pin installing hole 1017a, banking pin fixed axis 1019a, banking pin track groove 1021a are arranged between described first baffle 1011a and described second baffle 1023a.
The far-end of described left shell 101a is also provided with a housing coupling part 1025a, is connected by retainer ring 102 to make described housing 101 with described nail barrel 103.
Wherein, described form installing hole is arranged on the grip part between described first baffle and pointer bearing pin track groove 1015a.Described pointer bearing pin track groove 1015a is arranged between described form installing hole and described operating handle bearing pin installing hole 1017a.
Can grafting operating handle pin 117 on described operating handle axle installing hole 1017a, described operating handle 30, through the pin-and-hole 3031 on operating handle 30 and described operating handle axle installing hole 1017a, is pivotally connected with described housing 101 by described operating handle pin 117.
The structure of described operating handle 30, and itself and pointer member 111, banking pin 113, ejector pin bar 115 matching relationship will be specifically introduced in conjunction with Figure 11, Figure 12, Figure 15, Figure 16 following.
Described pointer bearing pin track groove 1015a is a track groove extended along the y direction of circular-pipe anastomat, and its pointer bearing pin 1115 that can hold pointer member 111 within it slides.
Described pointer bearing pin track groove 1015a is parallel to the longitudinal axis of described circular-pipe anastomat.
Described pointer bearing pin track groove 1015a has near-end end points and a far-end end points one by one.When described pointer bearing pin 1115 contacts described near-end end points, do not produce active force between described operating handle 30 and described pointer bearing pin, namely described pointer member can not hinder the motion of described handle, now, can squeeze grip pull the trigger; When described pointer bearing pin 1115 leaves near-end end points or is positioned at described far-end end points, if press described handle, described pointer member can hinder the motion of described handle, namely apparatus do not arrive can firing position time, press described operating handle 30, described operating handle 30 applies a pressure to described pointer bearing pin.
Be provided with pointer elastic component and pointer spring 119 between described first baffle 1011a and described pointer member 111, described pointer spring 119, against described first baffle 1011a and described pointer member 111, is in compressive state.
The structure of described pointer member 111, and itself and operating handle 30, banking pin 113 matching relationship will be specifically introduced at following composition graphs 7, Fig. 8, Fig. 9, Figure 15, Figure 16.
Described banking pin track groove 1021a is an arcuate groove, and its braking pin shaft 1135 can holding banking pin 113 within it moves.
This braking pin shaft track groove 1021a has one first extreme position and one second extreme position, and described first extreme position is arranged at the far-end of described banking pin track groove/apparatus relative to described second extreme position.
At described banking pin 113 when first extreme position of described banking pin track groove 1021a, between described operating handle and described banking pin, there is certain interval; At described banking pin when the second extreme position of described banking pin track groove, described operating handle contacts described banking pin.
Banking pin fixed axis 1019a can coordinate with connecting hole 1133 pivot of described banking pin 113, makes described banking pin 113 with described banking pin fixed axis 1019a for axis swing, drives described braking pin shaft 1135 to move in described banking pin track groove 1021a.
The structure of described banking pin 113, and the matching relationship of itself and operating handle 30, pointer member 111 and ejector pin bar 115 will be specifically introduced in conjunction with Figure 10, Figure 15, Figure 16 following.
The ejector pin bar boss 1151 that described second baffle 1023a and described ejector pin bar 115 are provided with coordinates, and lays ejector pin bar elastic component, preferred ejector pin bar spring 121.Second baffle 1023a described in described ejector pin bar spring 121 end thereof contacts and its other end contacts described ejector pin bar boss 1151.
Described ejector pin bar 115 has an initial position and a firing position, and when described ejector pin bar is positioned at its firing position, described ejector pin bar elastic component and ejector pin bar spring 121 reply the power of initial position to described ejector pin bar one.
The structure of described ejector pin bar 115, and the matching relationship of itself and operating handle 30 and banking pin 113 will be specifically introduced in conjunction with Figure 13, Figure 14, Figure 15, Figure 16 following.
Shown in composition graphs 1, Fig. 7, in an embodiment of the present invention, described pointer member 111 is arranged in housing 101.It comprises the pointer main body 1111 of a hollow, and described pointer main body 1111 is sheathed on described drive screw 109.
The end face of the near-end of this pointer main body 1111 is provided with the boss 1112 of accommodation or sheathed pointer spring 119, to ensure that pointer main body coordinates better with pointer spring, the far-end of this pointer main body 1111 abuts with the flange 1091 on described drive screw 109, makes described pointer spring 119 that described pointer main body 1111 can be driven to move along with the far-end of described drive screw 109 to described circular-pipe anastomat.
Adjutage 1114 and downward semi-girder 1116 on the extending respectively up and down of far-end of described pointer main body 1111.
Described pointer main body 1111 is also provided with indicatrix 1113.Described indicatrix is a ring-type, and the sidewall protruding from described pointer main body 1111 is arranged, and certainly, the position of described indicatrix arranges and can change according to the position difference of form installing hole, and described indicatrix also can be arranged on the adjutage of pointer.
The end of described upper adjutage 1114 is provided with the pointer bearing pin 1115 that can coordinate with the pointer bearing pin track groove of left and right housing 101a, 101b.Described pointer bearing pin 1115 is arranged in the pointer bearing pin track groove of left and right housing 101a, 101b movably, and can be driven by described knob assembly 40, reach far-end end points from the near-end endpoint location of described pointer bearing pin track groove, also can arrive near-end end points from the far-end end points of described pointer bearing pin track groove.
When described pointer bearing pin 1115 contacts described near-end end points, described operating handle can relatively described housing swing, and acts on described ejector pin bar and moves from the initial position of ejector pin bar to the firing position of ejector pin bar; When described pointer bearing pin 1115 leaves near-end end points or is positioned at described far-end end points, if press described handle, described pointer member can hinder the motion of described handle, namely apparatus do not arrive can firing position time, press described operating handle 30,, described operating handle all the time relatively described housing keeps static, avoids the generation of mistakenly hit hair device tool situation.
Described knob assembly 40 also can act on described drive screw 109 and drive described pointer main body 1111 to move to the near-end of described circular-pipe anastomat.
The end of described downward semi-girder 1116 is provided with pointer extension 1117.
The distal face of described pointer extension 1117 has an inclined-plane at least, moves in the banking pin track groove of left and right housing 101a, 101b so that it promotes described banking pin 113.Particularly, the contact surface of described pointer extension and described banking pin is one to the inclined-plane extended away from banking pin direction.
Described pointer extension 1117 can promote described banking pin 113 and be moved to its initial position by its anti-secondary firing position.
Preferably, also comprise form 1119, described form 1119 can be installed in the form installing hole of housing, and operator can pass through the position that this form 1119 checks described indicatrix 1113.Described pointer member 111 comprises one can firing position and a safety position, when view through this form 1119 described indicatrix 1113 be in can pull the trigger region time, representing that apparatus arrives can cock; When described indicatrix 1113 can not be viewed through this form 1119 or described indicatrix 1113 does not have arrival can pull the trigger region, then represent this pointer member and be in safety position, can not pull the trigger.
As shown in Figure 8, Figure 9, in another embodiment of the present invention, described pointer member 111 is arranged in housing 101.It comprises the pointer main body 1111 of a hollow, and described pointer main body 1111 can be sheathed on described drive screw 109.
The end face of the near-end of this pointer main body 1111 is provided with the boss 1112 of accommodation or sheathed pointer spring 119, to ensure that pointer main body coordinates better with pointer spring, the far-end of this pointer main body 1111 abuts with the flange 1091 on described drive screw 109, makes described pointer spring 119 that described pointer main body can be driven to move along with the far-end of described drive screw 109 to described circular-pipe anastomat.
Described pointer main body 1111 is also provided with the guide pad 1123 of main body latch hook 1121 and hollow.
Described guide pad 1123 can coordinate housing 101 to keep this pointer member 111 mobile stably in described housing 101.
Described pointer member 111 also comprises extension spring 1125 and a lock dog 1127.
Described lock dog 1127 is provided with pointer bearing pin 1115.In the pointer bearing pin track groove being arranged at described left and right housing 101a, 101b of this pointer bearing pin 1115 activity, and can be driven by described knob assembly 40, reach far-end end points from the near-end endpoint location of described pointer bearing pin track groove, also can arrive near-end end points from the far-end end points of described pointer bearing pin track groove.
When described pointer bearing pin 1115 contacts described near-end end points, described operating handle can relatively described housing swing, and acts on described ejector pin bar and moves from the initial position of ejector pin bar to the firing position of ejector pin bar; When described pointer bearing pin 1115 leaves near-end end points or is positioned at described far-end end points, if press described handle, described pointer member can hinder the motion of described handle, namely apparatus do not arrive can firing position time, press described operating handle 30,, described operating handle all the time relatively described housing keeps static, avoids the generation of mistakenly hit hair device tool situation.
Described lock dog 1127 through described guide pad 1123, and is connected with described main body latch hook 1121 by extension spring 1125.Preferably, described lock dog 1127 is provided with a lock dog latch hook 1129, and this extension spring 1125 one end connects described main body latch hook 1121, and the other end connects this lock dog latch hook 1129.
Described lock dog 1127 comprises can firing position and safety position, described can firing position time, do not produce active force between described operating handle and described lock dog, namely described lock dog can not hinder the motion of described operating handle, and squeeze grip can pull the trigger apparatus; When described safety position, if press described handle, described pointer member can hinder the motion of described handle, and namely described operating handle applies a pressure to described lock dog, cannot pull the trigger, and avoids the generation that mistakenly hit is sent out.
At the downward semi-girder 1116 of the remote extension of described pointer main body 1111, described downward semi-girder is provided with indicatrix 1113, certainly, the position of described indicatrix arranges and can change according to the position difference of form installing hole, and described indicatrix also can be arranged in described pointer main body 1111.
The end of described downward semi-girder 1116 is also provided with pointer extension 1117.
The distal face of described pointer extension 1117 has an inclined-plane at least, moves in the banking pin track groove of left and right housing 101a, 101b so that it promotes described banking pin 113.Particularly, the contact surface of described pointer extension and described banking pin is one to the inclined-plane extended away from banking pin direction.
Described pointer extension 1117 can promote described banking pin 113 and be moved to its initial position by its anti-secondary firing position.
Preferably, described pointer member 111 also comprises form 1119, and described form 1119 can be installed in the form installing hole of housing, and operator can pass through the position that this form 1119 checks described indicatrix 1113.When view through this form 1119 described indicatrix 1113 be positioned at can pull the trigger region time, then representing that this apparatus arrives can cock, when described indicatrix 1113 can not be viewed through this form 1119 or described indicatrix 1113 does not have arrival can pull the trigger region, then represent this apparatus and be in safety position, can not pull the trigger.
So, by arranging latch hook, extension spring, lock dog, even if make operator when unconsciously hold operating handle 30, pointer body 1111 still can move to along with the flange 1091 on drive screw 109 can firing position, and the pointer bearing pin 1115 on lock dog 1127 still can prop up operating handle 30.Until operator's unclamp operation handle 30, lock dog 1127 resilience under the effect of extension spring 1125, makes described lock dog also arrive and after firing position, can could complete percussion by pressing operations handle.Overcome in prior art, when operator unconsciously holds operating handle 30 rotary knob assembly 40, and pointer body 1111 reach can firing position time, unconscious percussion apparatus and the generation of the malpractice caused; Also operator in prior art can be avoided unconsciously to hold operating handle 30, rotary knob assembly 40, pointer is propped up by operating handle and cannot move, operator think arrive can firing position time, continue firmly pressing operation handle to pull the trigger, insurance then may be caused damaged, thus cause apparatus can not normally use or pull the trigger not exclusively.
As shown in Figure 1, Figure 10 shows, in an embodiment of the present invention, described banking pin 113 comprises a movable part 1131, and the two ends of described movable part 1131 are provided with connecting hole 1133, and described movable part 1131 adopts elastomeric material to make.
Wherein, in described movable part 1131 wherein a connecting hole, be inserted with braking pin shaft 1135, described braking pin shaft 1135 can coordinate with the banking pin track groove 1021a on left and right housing 101a, 101b, and this banking pin 113 can be moved in described banking pin track groove.
At described banking pin 113 when the first extreme position of described banking pin track groove, described ejector pin bar projection 1153 is located between described operating handle and described banking pin; At described banking pin when the second extreme position of described banking pin track groove, described banking pin is located between described ejector pin bar projection and described operating handle.
Another connecting hole 1133 rotor ground described connects the banking pin fixed axis 1019a on left shell 101a.
When described banking pin 113 is positioned at the initial position of banking pin, described banking pin is near the first extreme position of described banking pin track groove.
Movable part 1131 is provided with one end of braking pin shaft 1135 can against the ejector pin bar projection 1153 on ejector pin bar 115, and after apparatus has been pulled the trigger, promote movable part 1131 in described banking pin track groove to described circular-pipe anastomat proximal movement by described ejector pin bar projection.
When described banking pin 113 is positioned at the anti-secondary firing position of banking pin, described banking pin is near the second extreme position of described banking pin track groove.
As shown in figure 11, in an embodiment of the present invention, described operating handle 30 comprises handle portion 301, connecting portion 303.Described connecting portion 303 is provided with pin-and-hole 3031, first resistance surface 3033, second resistance surface 3035, and described handle portion 301 can be used for operator and grips and press described handle portion 301 and move to described housing 101 direction.
The installation described operating handle 30 of described bearing pin 3031 for coordinating the handle bearing pin installing hole on left and right housing 101a, 101b and operating handle pin 117 movable on described housing 101.
Described first resistance surface 3033 can play insurance function against the pointer bearing pin 1115 of described pointer member 111, and the longitudinal axis of described first resistance surface and described circular-pipe anastomat.
When described pointer member 111 contacts the near-end end points of described pointer bearing pin track groove, active force is not produced between described first resistance surface 3033 and described pointer bearing pin 1115, namely described pointer bearing pin can not hinder the motion of described operating handle, and squeeze grip can pull the trigger apparatus; When described pointer member 111 is left the near-end end points of described pointer bearing pin track groove or is positioned at the far-end end points of described pointer bearing pin track groove, if press described handle, described pointer bearing pin 1115 can hinder the motion of described handle, namely described first resistance surface applies a pressure to described pointer bearing pin, cannot pull the trigger.
When described pointer member 111 be positioned at described can firing position time, do not produce active force between described first resistance surface and described pointer bearing pin; When described pointer member is positioned at safety position, described first resistance surface applies a pressure to described pointer bearing pin.
Described second resistance surface 3035 can play anti-secondary percussion function against the movable part 1131 of described banking pin 113.Described second resistance surface is L shape, and the angle of its L shape is right angle or acute angle.Preferably, as shown in figure 12, the angle of described L shape is the excessive acute angle of circular arc.
Described first resistance surface 3033 and the second resistance surface 3035 not coplanar.
Wherein, described second resistance surface 3035 is located at below described first resistance surface 3033, and the longitudinal axis namely closer to described circular-pipe anastomat is arranged.Relatively described first resistance surface 3033 of described second resistance surface 3035 is closer to the far-end of described circular-pipe anastomat.
Preferably, connecting portion 303 is set to symmetrical and tool two parts at regular intervals, in every part, is provided with pin-and-hole 3031, first resistance surface 3033 and the second resistance surface 3035 all accordingly.With respectively grafting operating handle pin 117, against the pointer bearing pin 1115 at adjutage 1114 two ends in pointer member 111 and banking pin 113 movable part 1131, and can avoid being formed with described drive screw 109 and ejector pin bar 115 interfering.
As shown in Figure 13, Figure 14, in an embodiment of the present invention, described ejector pin bar 115 is hollow structure, and it is sheathed on described drive screw 109.Described ejector pin bar 115 comprises the ejector pin bar projection 1153, ejector pin bar boss 1151, the ejector pin bar buckle 1155 that are set gradually to ejector pin bar far-end by ejector pin bar near-end.
Described ejector pin bar boss 1151 can coordinate the second baffle compression ejector pin bar spring 121 on described left and right housing 101a, 101b.Described ejector pin bar spring 121 is arranged against described ejector pin bar boss and described second baffle, and when described ejector pin bar 115 is positioned at its firing position, described ejector pin bar spring 121 replys the power of its initial position to described ejector pin bar one.
Described ejector pin bar projection 1153 can coordinate the movable part 1131 of banking pin 113 to play anti-secondary percussion function.When the initial position of described banking pin 113, described ejector pin bar is protruding is an arcwall face or to the inclined-plane extended away from banking pin direction with the contact surface of described banking pin.When the anti-secondary firing position of described banking pin, described ejector pin bar is protruding is one to the inclined-plane extended away from banking pin direction with the contact surface of described banking pin.
When the initial position of banking pin 113, described ejector pin bar projection 1153 contacts described banking pin near the one side of described circular-pipe anastomat far-end, and described ejector pin bar projection 1153 is located between described operating handle 30 and described banking pin 113; When the anti-secondary firing position of banking pin, the protruding one side near described circular-pipe anastomat near-end of described ejector pin bar contacts described banking pin, and described banking pin is located between described ejector pin bar projection and described operating handle.
This ejector pin bar buckle 1155 can connect described pushing slice of nail 105.
Between described ejector pin bar protruding 1153 and described ejector pin bar boss 1151, also be provided with for the mating surface 1157 against described operating handle 30, to make described operating handle 30 can when pressing, described ejector pin bar 115 is driven to move to the far-end of described circular-pipe anastomat, compress described ejector pin bar spring 121, act on pushing slice of nail 105 simultaneously and pull the trigger.
The operation principle of circular-pipe anastomat of the present invention is:
As shown in figure 15, when described circular-pipe anastomat is positioned at original state, the pointer bearing pin 1115 of described pointer member 111 is arranged in the pointer bearing pin track groove of described left and right housing 101a, 101b, and be in the position of the near-end end points leaving pointer bearing pin track groove, and coordinate with the first baffle of described housing, compress described pointer spring 119.
Described banking pin 113 is installed in described housing, and its braking pin shaft 1135 is positioned at the banking pin track groove of described housing 101, and described banking pin 113 is near the first extreme position of described banking pin track groove.Now, described banking pin is positioned at initial position.
The ejector pin bar projection 1153 of described ejector pin bar 115 is located between described banking pin 113 movable part 1131 and described operating handle second resistance surface 3035.
Turning knob assembly 40, slow screw thread and fast screw thread drive drive screw 109 to move ahead to the far-end of described circular-pipe anastomat.
Meanwhile, pointer spring 119 push pointer main body 1111 moves ahead to the far-end of described circular-pipe anastomat, and described pointer bearing pin 1115, against the first resistance surface 3033 of described operating handle, makes operating handle 30 to press down, plays safety effect.
Anvil assembly 20 is installed on described anastomat body 10, then, opposite direction rotary knob assembly 40 again, drive screw 109 described in rollback and pointer member 111, until observe the indicatrix 1113 of described pointer member 111 from form 1119, and judge to have arrived pointer member can firing position, now, the pointer bearing pin 1115 of described pointer member arrives the near-end end points of pointer bearing pin track groove, active force is not produced between described first resistance surface 3033 and described pointer bearing pin 1115, namely described pointer bearing pin can not hinder the motion of described operating handle, apparatus arrives can cock.
Pressing operations handle 30 is pulled the trigger, operating handle 30 drives ejector pin bar 115 to move to apparatus far-end and after being carried out by tissue coincideing, cutting, unclamp operation handle 30, described ejector pin bar spring 121 drives described ejector pin bar boss 1151 to be automatically reset by ejector pin bar 115.Simultaneously, described ejector pin bar projection 1153 pushes back the movable part 1131 of described banking pin 113, to " anti-secondary firing position ", as shown in figure 16, described banking pin 113 is near the second extreme position of described banking pin track groove, namely the movable part 1131 of described banking pin 113 is between described ejector pin bar protruding 1153 and the second resistance surface 3035 of described operating handle 30, and described banking pin is positioned at its anti-secondary firing position, prevents again pressing operations handle secondary to pull the trigger apparatus.
To pull the trigger next time, by turning knob assembly 40, slow screw thread and fast screw thread drive drive screw 109 to move ahead to the far-end of described circular-pipe anastomat.Simultaneously, pointer spring 119 push pointer main body 1111 moves ahead to the far-end of described circular-pipe anastomat, the movable part 1131 that the pointer extension 1117 of pointer member promotes described banking pin 113 moves, by its anti-secondary firing position to its initial position in described banking pin track groove.And repeat above-mentioned steps, percussion next time can be completed.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or basic feature, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (12)
1. a knob assembly, it is characterized in that, described knob assembly comprises a knob body, be removably mounted on slow screw element in described knob body and location-plate, and described location-plate coordinates with described knob body, the relative position of fixing described slow screw element and described knob body.
2. knob assembly according to claim 1, it is characterized in that, described knob body comprises a knob, described knob is provided with a receiving space, be provided with at least one knob in described receiving space protruding, described location-plate comprises and location-plate groove protruding with the location-plate of described knob male cooperation.
3. knob assembly according to claim 2, is characterized in that, the end face of described location-plate projection and the end face of described knob projection inconsistent.
4. knob assembly according to claim 1, is characterized in that, described location-plate also comprises a hole coordinated with described slow screw element.
5. knob assembly according to claim 2, is characterized in that, described knob assembly also comprises the fast threaded portion distally extended by described knob, and described slow screw element comprises a stopper slot be connected with described fast threaded portion proximal end.
6. knob assembly according to claim 1, it is characterized in that, described knob assembly also comprises the bonnet that connects described knob body removably, and described bonnet comprises the bonnet groove with described knob male cooperation, and protruding with the bonnet of described location-plate groove fit.
7. a circular-pipe anastomat, comprise body, the operating handle be connected with described body, knob assembly and anvil assembly, it is characterized in that, described knob assembly comprises a knob body, be removably mounted on slow screw element in described knob body and location-plate, described location-plate coordinates with described knob body, the relative position of fixing described slow screw element and described knob body.
8. circular-pipe anastomat according to claim 7, it is characterized in that, described knob body comprises a knob, described knob is provided with a receiving space, be provided with at least one knob in described receiving space protruding, described location-plate comprises and location-plate groove protruding with the location-plate of described knob male cooperation.
9. circular-pipe anastomat according to claim 8, is characterized in that, the end face of described location-plate projection and the end face of described knob projection inconsistent.
10. circular-pipe anastomat according to claim 7, is characterized in that, described location-plate also comprises a hole coordinated with described slow screw element.
11. circular-pipe anastomats according to claim 8, is characterized in that, described knob assembly also comprises the fast threaded portion distally extended by described knob, and described slow screw element comprises a stopper slot be connected with described fast threaded portion proximal end.
12. circular-pipe anastomats according to claim 7, it is characterized in that, described knob assembly also comprises the bonnet that connects described knob body removably, and described bonnet comprises the bonnet groove with described knob male cooperation, and protruding with the bonnet of described location-plate groove fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578024.6A CN103142272B (en) | 2012-12-27 | 2012-12-27 | Knob assembly and circular tube type anastomat with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210578024.6A CN103142272B (en) | 2012-12-27 | 2012-12-27 | Knob assembly and circular tube type anastomat with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103142272A CN103142272A (en) | 2013-06-12 |
| CN103142272B true CN103142272B (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210578024.6A Active CN103142272B (en) | 2012-12-27 | 2012-12-27 | Knob assembly and circular tube type anastomat with same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103142274B (en) * | 2012-12-27 | 2016-09-14 | 苏州天臣国际医疗科技有限公司 | Circular-pipe anastomat |
| CN104224259B (en) * | 2014-09-15 | 2017-02-08 | 江苏钱璟医疗器械有限公司 | Disposable internal opening cutting and enclosing anastomat |
| CN105286936B (en) * | 2015-11-17 | 2017-07-28 | 江苏孜航精密五金有限公司 | The safeties and drive device of disposable anorectal Endo-GIA |
| CN105342658B (en) * | 2015-11-17 | 2017-07-11 | 江苏孜航精密五金有限公司 | Disposable anorectal Endo-GIA |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647243Y (en) * | 2003-10-09 | 2004-10-13 | 翁志强 | Double-speed regulator for digestive tract anastomat |
| CN2647242Y (en) * | 2003-10-09 | 2004-10-13 | 翁志强 | Regulating button for degestive tract anastomat |
| CN203029307U (en) * | 2012-12-27 | 2013-07-03 | 苏州天臣国际医疗科技有限公司 | Knob component and pipe-type stapler device provided with same |
-
2012
- 2012-12-27 CN CN201210578024.6A patent/CN103142272B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2647243Y (en) * | 2003-10-09 | 2004-10-13 | 翁志强 | Double-speed regulator for digestive tract anastomat |
| CN2647242Y (en) * | 2003-10-09 | 2004-10-13 | 翁志强 | Regulating button for degestive tract anastomat |
| CN203029307U (en) * | 2012-12-27 | 2013-07-03 | 苏州天臣国际医疗科技有限公司 | Knob component and pipe-type stapler device provided with same |
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| Publication number | Publication date |
|---|---|
| CN103142272A (en) | 2013-06-12 |
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Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021 science and Technology Plaza, Jinji Lake Road International Science Park, Suzhou Industrial Park, Suzhou, Jiangsu, 21A Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |