CN204445993U - A kind of surgical instruments and control bender structure thereof - Google Patents
A kind of surgical instruments and control bender structure thereof Download PDFInfo
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- CN204445993U CN204445993U CN201520036643.1U CN201520036643U CN204445993U CN 204445993 U CN204445993 U CN 204445993U CN 201520036643 U CN201520036643 U CN 201520036643U CN 204445993 U CN204445993 U CN 204445993U
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Abstract
This utility model provides a kind of surgical instruments and control bender structure thereof, and described control bender structure comprises: steering power input mechanism A, steering gear B, locking mechanism C, straight line power take-off mechanism D; Further: steering power input mechanism A and the steering gear B of coaxial setting have opposed rotatable angular range in the circumferential; The process that steering power input mechanism A rotates from one end angle of described opposed rotatable angular range to other end angle relative to steering gear B, steering power input mechanism A is successively through relative angle: angle I, angular range II, angle III; Wherein angle I or angle III correspondence is turned, and angular range II corresponds to lockup state.When this utility model can solve surgical operation, the turning of human body medical appliance and fixation problem, reduce the risk of operation.
Description
Technical field
This utility model relates to a kind of control bender structure for surgical stapling, especially for the turning of control chamber mirror anastomat jaw and the mechanism of locking.
Background technology
The action principle of surgical stapling is closed with grasping tissue by two corresponding jaws (being commonly referred to nail-anvil assembly and nail bin groupware), then the metal suture nail in anastomat nail storehouse is released molding, by tissue apposition together.In some anastomat, cutter are also housed, open for the tissue sewed up is cut off.
Along with the progress of technology, traditional operation mode is turn-around chamber videoendoscopic surgery gradually.Endoscope-assistant surgery is exactly the minimal incision * doing several diameter 5 ~ 12 millimeters at the different parts of abdominal part or chest, pick-up lens and various special operating theater instruments is inserted by these minimal incision *, by the image transmitting of the various internal organs of intraperitoneal captured by the Intraabdominal photographic head of insertion on telescreen, surgeon, by observing image, handles various operating theater instruments to complete operation.
Wherein, the role of most critical played the part of by mirror anastomat in chamber in operation.Due to the restriction of abdominal cavity or breast cavity space, traditional line chamber mirror anastomat in some extreme environments, effectively can not arrive that operative site carries out clamping, cross-section, anastomosed tissue, so need the elbow anastomat that a kind of anastomat jaw (comprising nail-anvil assembly and nail bin groupware) can be turned.Under linear state, this elbow anastomat of turning enters thoracic cavity or abdominal cavity by perforator, control jaw by the control bender structure above external handle and curve certain angle, and operative site is clamped, the sequence of operations such as cross-section, identical.After having performed the operation, again become linear state, exit external.
As can be seen here, reasonably control bender structure in the urgent need to one at present, control the angle needed for the rotation of anastomat jaw, conveniently carry out hands art; Meanwhile, anastomat jaw, in required angle secure lock, prevents under not expected strength, produces potential safety hazard.
Utility model content
For defect of the prior art, an object of the present utility model is: design a kind of easy controlling organization, reaching the object that anastomat jaw is turned, making anastomat jaw be locked in selected angle simultaneously by pulling spanner.Like this, at thoracic cavity or intraperitoneal, even if anastomat jaw is subject to not expected strength, jaw can not be made to turn, thus reduce potential risks.
According to the one control bender structure that this utility model provides, comprise as lower device:
-steering power input mechanism A;
-steering gear B;
-locking mechanism C;
-straight line power take-off mechanism D;
Further:
Steering power input mechanism A and the steering gear B of coaxial setting have opposed rotatable angular range in the circumferential; The process that steering power input mechanism A rotates from one end angle of described opposed rotatable angular range to other end angle relative to steering gear B, steering power input mechanism A is successively through relative angle: angle I, angular range II, angle III;
When steering power input mechanism A is in described angular range II, locking mechanism C locks steering gear B, makes to keep geo-stationary between steering gear B and straight line power take-off mechanism D;
When steering power input mechanism A is in described angle I, locking mechanism C is release steering gear B under the ordering about of steering power input mechanism A, further, steering gear B can rotate to the first circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement;
When steering power input mechanism A is in described angle III, locking mechanism C is release steering gear B under the ordering about of steering power input mechanism A, further, steering gear B can rotate to the second circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement; Wherein, the first circumferencial direction is contrary with the second circumferencial direction.
Preferably, the angular range between angle I and angle III forms described angular range II.
Preferably, steering gear B is along the circumferential direction provided with multiple locking bit, along with the rotation of steering gear B, locking mechanism C can lock steering gear B in the locking bit of correspondence.
Preferably, described steering power input mechanism A is spanner, and steering gear B comprises central shaft and is arranged at the lock plate on central shaft, and locking mechanism C is slide block, and straight line power take-off mechanism D is tooth bar;
The pin-and-hole of spanner is coordinated by pin with the scallop hole of central shaft; The angle of scallop hole forms described opposed rotatable angular range;
Spanner is circumferentially provided with multiple switch teeth groove;
Lock plate is circumferentially provided with multiple lock groove;
Slide block is provided with the back-moving spring with the release inclined-plane of switch tooth socket fit, the locking boss coordinated with lock groove and the release slope advance switch teeth groove vallecular cavity that orders about slide block;
Be arranged at gears meshing on central shaft in described tooth bar.
Preferably, when pin is positioned at one end of scallop hole, described spanner is in angle I; When pin is positioned at the other end of scallop hole, described spanner is in angle III; When the region of pin between one end and the other end of scallop hole, described spanner is in angular range II.
Preferably, described locking boss forms locking to lock plate by the vallecular cavity that stretches into the described lock groove forming described locking bit, and by inside contracting the release of back-shaped paired lock plate from the vallecular cavity of described lock groove.
Preferably, described lock groove comprises a straightway, and described locking boss is by engaging to lock described lock plate with described straightway.
Preferably, also swivel head is comprised;
Described spanner is assemblied in the opening of swivel head;
The opening of swivel head is provided with positive stop lug boss, described spanner is provided with the angle limit groove coordinated with positive stop lug boss.
A kind of surgical instruments, comprises any one control bender structure described above.Described surgical instruments is surgical stapling, and the straight line power take-off mechanism D of described control bender structure connects the jaw of anastomat.
Compared with prior art, this utility model has following beneficial effect:
1, by this utility model, one or more position can be locked in operation, make anastomat jaw curve and be fixed to desired position, complete operation.
2, mechanism of the present utility model is simple, and part is few, and most of part adopts Shooting Technique manufacture, manufactures simple, with low cost.
3, the control bender structure that this utility model provides can be widely used on other mechanically actuated parts, is easy to control and switching.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 is the surgical stapling subjectivity figure comprising control bender structure;
Fig. 2 is the subjectivity figure of control bender structure;
Fig. 3 is the fractionation CONSTRUCTED SPECIFICATION figure of the first embodiment control bender structure;
Fig. 4 is the upward view of the first embodiment control bender structure;
Fig. 5 is the upward view of the first embodiment lock plate;
Fig. 6 is that the A-A of Fig. 8 is to sectional view;
Fig. 7 is that the B-B of Fig. 8 is to sectional view;
Fig. 8 is the sectional side elevation that the first embodiment spanner is in angle I time control bender structure;
Fig. 9 is that the D-D of Figure 11 is to sectional view;
Figure 10 is that the E-E of Figure 11 is to sectional view;
Figure 11 is the sectional side elevation that the first embodiment spanner is in angular range II time control bender structure;
Figure 12 is that the H-H of Figure 14 is to sectional view;
Figure 13 is that the G-G of Figure 14 is to sectional view;
Figure 14 is the sectional side elevation that the first embodiment spanner is in angle III time control bender structure;
Figure 15 is the fractionation CONSTRUCTED SPECIFICATION figure of the second embodiment control bender structure;
In figure:
1-spanner;
101-angle limit groove;
102-pin-and-hole;
103-switch teeth groove;
104-cover plate;
105-boss;
2-lock plate;
201-square hole;
202-lock groove;
3-central shaft;
301-gear;
302-square face;
303-scallop hole;
304-link slot;
4-slide block;
401-stage clip;
402-pressure spring slot;
403-releases inclined-plane;
404-locking boss;
5-tooth bar;
501-rack structure;
6-sells;
7-swivel head upper part.
701-opening;
702-locates teeth groove;
8-lifting ring;
801-spanner mating groove;
802-drives inclined-plane;
9-cam lock;
901-connects boss;
902-positioning tooth;
903-stage clip supporting surface;
The passive inclined-plane of 904-;
10-stage clip.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in detail.Following examples will contribute to those skilled in the art and understand this utility model further, but not limit this utility model in any form.It should be pointed out that to those skilled in the art, without departing from the concept of the premise utility, some distortion and improvement can also be made.These all belong to protection domain of the present utility model.
According to the one control bender structure that this utility model provides, comprise as lower device:
-steering power input mechanism A;
-steering gear B;
-locking mechanism C;
-straight line power take-off mechanism D;
Further:
Steering power input mechanism A and the steering gear B of coaxial setting have opposed rotatable angular range in the circumferential; The process that steering power input mechanism A rotates from one end angle of described opposed rotatable angular range to other end angle relative to steering gear B, steering power input mechanism A is successively through relative angle: angle I, angular range II, angle III;
When steering power input mechanism A is in described angular range II, locking mechanism C locks steering gear B, makes to keep geo-stationary between steering gear B and straight line power take-off mechanism D;
When steering power input mechanism A is in described angle I, locking mechanism C is release steering gear B under the ordering about of steering power input mechanism A, further, steering gear B can rotate to the first circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement;
When steering power input mechanism A is in described angle III, locking mechanism C is release steering gear B under the ordering about of steering power input mechanism A, further, steering gear B can rotate to the second circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement; Wherein, the first circumferencial direction is contrary with the second circumferencial direction.
Preferably, the angular range between angle I and angle III forms described angular range II.
As shown in Figure 1, this utility model provides a kind of chamber mirror surgical stapling.This chamber mirror surgical stapling comprises a tubular structure and control bender structure, and tubular structure far-end has anastomat jaw, and near-end connects control bender structure.
Be the control bender structure in this utility model as shown in Figure 2, described control bender structure comprises: spanner 1, swivel head upper part 7, wherein spanner 1 is arranged on swivel head upper part 7.
Preferably, steering gear B is along the circumferential direction provided with multiple locking bit, along with the rotation of steering gear B, locking mechanism C can lock steering gear B in the locking bit of correspondence.
Preferably, described steering power input mechanism A is spanner 1, the lock plate 2 that steering gear B comprises central shaft 3 and is arranged on central shaft 3, and locking mechanism C is slide block 4, and straight line power take-off mechanism D is tooth bar 5;
The pin-and-hole 102 of spanner 1 is coordinated by pin 6 with the scallop hole 303 of central shaft 3; The angle of scallop hole 303 forms described opposed rotatable angular range;
Spanner 1 is circumferentially provided with multiple switch teeth groove 103;
Lock plate 2 is circumferentially provided with multiple lock groove 202;
Slide block 4 is provided with the back-moving spring 401 of the release inclined-plane 403 coordinated with switch teeth groove 103, the locking boss 404 coordinated with lock groove 202 and release inclined-plane 403 push-on switch teeth groove 103 vallecular cavity that orders about slide block 4;
The gear 301 be arranged on central shaft 3 is engaged in described tooth bar 5.
Preferably, when pin 6 is positioned at one end of scallop hole 303, described spanner 1 is in angle I; When pin 6 is positioned at the other end of scallop hole 303, described spanner 1 is in angle III; When the region of pin 6 between one end and the other end of scallop hole 303, described spanner 1 is in angular range II.
Preferably, described locking boss 404 forms locking to lock plate 2 by the vallecular cavity that stretches into the described lock groove 202 forming described locking bit, and by inside contracting the release of back-shaped paired lock plate 2 from the vallecular cavity of described lock groove 202.
Preferably, described lock groove 202 comprises a straightway, and described locking boss 404 is by engaging with described straightway to lock described lock plate 2.
Be illustrated in figure 3 the concrete structure of control bender structure, control bender structure, comprising: lock plate 2, spanner 1, slide block 4, stage clip 401; Wherein, described lock plate 2 is fixed with central shaft 3, and has a series of lock groove 202 above;
Spanner 1 is connected by pin 6 with central shaft 3, and spanner 1 is provided with a series of switch teeth groove; The far-end of slide block 4 is provided with releases inclined-plane 403, locking boss 404; Stage clip 401, is placed between slide block 4 and swivel head upper part 7.The switch teeth groove 103 of spanner 1 and the lock groove 202 of lock plate 2 have a centre position, and now anastomat jaw is in linear state.
More specifically, swivel head upper part 7 has an opening, can hold central shaft 3, lock plate 2, spanner 1, and the opening of these three parts of above-mentioned central shaft 3, lock plate 2, spanner 1 and swivel head is along coaxially arranged.Lock plate 2 is by square face 302 secure fit above square hole 201 and central shaft 3, and in some cases, lock plate 2 and these two parts of central shaft 3 can be made of one.Pin-and-hole 102 above spanner 1 is coordinated by pin 6 with the scallop hole 303 above central shaft 3.Slide block 4 is placed in the inside of swivel head upper part 7, layout equidirectional with swivel head upper part 7, and the release inclined-plane 403 on slide block 4 coordinates with the switch teeth groove 103 of spanner 1, and locking boss 404 is placed in the middle of the lock groove 202 of lock plate 2.Stage clip 401 is placed in the pressure spring slot 402 of slide block 4, is placed between the boss of swivel head upper part 7 and slide block 4.Central shaft 3 is engaged with the rack structure 501 of tooth bar 5 by the gear 301 on central shaft 3, plays convert rotational motion and is rectilinear motion and the final effect controlling anastomat front end and turn.In addition, on spanner 1, be provided with an angle limit groove 101, as shown in Figure 4, at the opening part of swivel head upper part 7, have a positive stop lug boss, the anglec of rotation of spanner can be limited, avoid rotating excessively.
Preferably, swivel head 7 is also comprised;
Described spanner 1 is assemblied in the opening of swivel head 7;
The opening of swivel head 7 is provided with positive stop lug boss, described spanner 1 is provided with the angle limit groove 101 coordinated with positive stop lug boss.
As shown in Figure 4 and Figure 5, the lock groove 202 of lock plate 2 has a straightway, and the lock groove 202 of lock plate 2 is circumference array distributions, and the angular distribution of each lock groove is equal, the lock groove 202 of lock plate 2 and switch teeth groove 103 one_to_one corresponding of spanner 1.Spanner 1 is provided with an angle limit groove 101, guarantees that spanner rotates in certain angle, prevent excessive rotation.
As the change case of the first embodiment that this utility model provides, the angular distribution of each lock groove above-mentioned also can be lock groove 202 and the spanner 1 of Unequal distance or lock plate 2 switch teeth groove 103 also can right and wrong one to one.
A kind of surgical instruments, comprises any one control bender structure described above.Described surgical instruments is surgical stapling, and the straight line power take-off mechanism D of described control bender structure connects the jaw of anastomat.
As shown in Fig. 6 to 14, be the operation principle of above-mentioned control bender structure, be specially:
As shown in Figure 6 to 8, when pin 6 is positioned at one end of scallop hole 303, described spanner 1 is in angular range I, now stage clip 401 promotes the switch teeth groove 103 that slide block 4 slips into spanner, now, the locking boss 404 of slide block 4 enters the lock groove 202 of lock plate 2, and locks lock plate 2, thus locking central shaft 3, fix an anglec of rotation.Because the locking boss 404 of slide block 4 engages with lock groove 202 straightway of lock plate 2, the rotation of tooth bar 5 driven gear 301 can not promote slide block 4 and move, and reaches the object of locking.
As shown in Figures 9 to 11, when pin 6 is between the two ends of scallop hole 303, described spanner 1 is between angular range I and angular range III, when being namely in angular range II, spanner 1 pin 6 rotates an angle, the switch teeth groove 103 of spanner 1 coordinates with the release inclined-plane 403 of slide block 4, is released by slide block 4; Now, the locking boss 404 of slide block 4 coordinates with the lock groove 202 of lock plate 2 and departs from.Continue rotary spanner 1, then pin 6 is with central shaft 3 to rotate by scallop hole 303, and is with carry-over bar 5 to seesaw, and plays the effect of turning.
As shown in Figure 12 to Figure 14, when pin 6 is positioned at the other end of scallop hole 303, spanner 1 turns to next position, stage clip 401 promotes another switch teeth groove 103 that slide block 4 slips into spanner, now, the locking boss 404 of slide block 4 enters the lock groove 202 of lock plate 2, and locks lock plate 2, thus locking central shaft 3, fix an anglec of rotation.Because the locking boss 404 of slide block 4 engages with lock groove 202 straightway of lock plate 2, the rotation of tooth bar 5 driven gear 301 can not promote slide block 4 and move, and reaches the object of locking.
As Figure 15, show the one control bender structure of the second embodiment that this utility model provides, described control bender structure comprises: spanner 1, swivel head upper part 7, wherein spanner 1 is arranged on swivel head upper part 7.
Particularly, described control bender structure, comprising: form the spanner of steering power input mechanism A and the lifting ring with spanner synchronous axial system; Form the central shaft 3 of steering gear B; Form cam lock 9, stage clip 10, the swivel head upper part 7 of locking mechanism C; Further, cam lock 9 is engaged in steering gear B; Form the tooth bar 5 of straight line power take-off mechanism D; Wherein, tooth bar 5 is engaged in the gear 301 be arranged on central shaft 3; Further: steering power input mechanism A and the steering gear B of coaxial setting have opposed rotatable angular range in the circumferential; The process that steering power input mechanism A rotates from one end angle of described opposed rotatable angular range to other end angle relative to steering gear B, steering power input mechanism A is successively through relative angle: angle I, angular range II, angle III; When steering power input mechanism A is in described angular range II, under the ordering about of stage clip 10, cam lock 9 engaging lock, makes to keep geo-stationary between steering gear B and straight line power take-off mechanism D to lock steering gear B due to swivel head; When steering power input mechanism A is in described angle I, cam lock 9 under the ordering about of lifting ring 8 disengaging swivel head to discharge steering gear B, further, steering gear B can rotate to the first circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement; When steering power input mechanism A is in described angle III, cam lock 9 under the ordering about of lifting ring 8 disengaging swivel head to discharge steering gear B, further, steering gear B can rotate to the second circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement; Wherein, the first circumferencial direction is contrary with the second circumferencial direction.
Swivel head upper part 7, has an opening 701, inside has a series of locating slot 702; Central shaft 3, axle has gear 301, by connecting tooth bar 5, and further by being placed in the connecting device of tubular structure inside, connects anastomat jaw; Lifting ring 8, coaxially arranged with central shaft 3, containing driving inclined-plane 802; Cam lock 9, coaxially arranged with central shaft 3, containing connecting boss 901, being connected with central shaft 3, simultaneously containing passive inclined-plane 904, coordinating with the driving inclined-plane 802 of lifting ring 8, another containing positioning tooth 902; Spanner 1, is coordinated by boss 105 with lifting ring 8, and is connected with central shaft 3 by pin 6; Stage clip 10, is placed between spanner 1 and lifting ring 8.
Angular range between angle I and angle III forms described angular range II.Swivel head opening part is along the circumferential direction provided with multiple engaging lock location, and along with the rotation of cam lock 9, cam lock 9 can engage swivel head and locate in the engaging lock of correspondence.
More specifically, described surgical instruments is surgical stapling, and the straight line power take-off mechanism D of described control bender structure connects the jaw of anastomat.Wherein, the locating slot 702 on swivel head has a centre position, makes anastomat jaw be in linear state.
The pin-and-hole 102 of spanner 1 is coordinated by pin 6 with the scallop hole 303 of central shaft 3; The angle of scallop hole 303 forms described opposed rotatable angular range; Spanner 1 extends boss 105 downwards, and lifting ring 8 is provided with spanner mating groove 801, and boss 105 is engaged in spanner mating groove 801.
When pin 6 is positioned at one end of scallop hole 303, described spanner 1 is in angle I; When pin 6 is positioned at the other end of scallop hole 303, described spanner 1 is in angle III; When the region of pin 6 between one end and the other end of scallop hole 303, described spanner 1 is in angular range II.
Lifting ring 8 is provided with and drives inclined-plane 802, cam lock 9 is provided with passive inclined-plane 904, and passive inclined-plane 904 is matched with and drives inclined-plane 802; When lifting ring 8 rotates under the driving of spanner 1 in angular range II, lifting ring 8 and cam lock 9 relatively rotate; When lifting ring 8 turns to angle I and angle III under the driving of spanner 1, drive passive inclined-plane 904 that cam lock 9 is locked with engaging of swivel head to depart from away from swivel head by driving inclined-plane 802.
Spanner 1 is provided with cover plate 104, and cam lock 9 is provided with stage clip supporting surface 903, and stage clip 10 is connected between cover plate 104 and stage clip supporting surface 903.
The opening of swivel head is provided with positive stop lug boss, described spanner 1 is provided with the angle limit groove coordinated with positive stop lug boss.Locating slot 702 on swivel head is circumference array distributions, and the angular distribution of each locating slot 702 is Unequal distance.In addition, the opening part on swivel head is provided with a positive stop lug boss, guarantees that spanner rotates in certain angle, prevents excessive rotation.
As the change case of the second embodiment that this utility model provides, the angular distribution of each locating slot above-mentioned also can be equal.
More specifically, this utility model second embodiment is a kind of chamber mirror anastomat control bender structure, comprises spanner 1, stage clip 10, cam lock 9, lifting ring 8, central shaft 3, swivel head upper part 7, tooth bar 5, pin 6.Wherein, swivel head upper part 7 has an opening, can hold spanner 1, stage clip 10, cam lock 9, lifting ring 8, central shaft 3, and the opening on these five parts of above-mentioned spanner 1, stage clip 10, cam lock 9, lifting ring 8, central shaft 3 and swivel head is along coaxially arranged; A series of locating slot 702 is had in opening.These three parts of central shaft 3, lifting ring 8, cam lock 9 are arranged from inside to outside, the connection boss 901 of cam lock 9 coordinates with the link slot 304 of central shaft 3, passive inclined-plane 904 coordinates with the driving inclined-plane 802 of lifting ring 8, and positioning tooth 902 is placed in a series of locating slots 702 on swivel head.The boss 105 of spanner 1 coordinates with the spanner mating groove 801 of lifting ring 8.Stage clip 10 is placed between the stage clip supporting surface 903 of cam lock 9 and the cover plate 104 of spanner 1.The pin-and-hole 102 of spanner 1 is coordinated with the scallop hole 303 of central shaft 3 by pin 6.Tooth bar 5 is placed in swivel head upper part 7, and the gear 301 of central shaft 3 engages.
When rotary spanner time, the boss 105 of spanner 1 drives lifting ring 8 to rotate an angle, lifting ring 8 is by driving the passive inclined-plane 904 of inclined-plane 802 driving cam lock 9, and cam lock 9 is raised, and positioning tooth 902 departs from engagement with the locating slot 702 of swivel head upper part 7; Continue rotary spanner, then pin 6 is with central shaft 3 to rotate by scallop hole 303, and central shaft 3 drives cam lock 9 to rotate, and is with carry-over bar 5 to seesaw simultaneously, plays the effect of turning.
When spanner 1 turns to next position, unclamp spanner 1, stage clip 10 actuating cam lock 9, make positioning tooth 902 snap in another locating slot 702 of swivel head upper part 7, now, cam lock 9 can lock central shaft 3, makes it freely not rotate.Because the positioning tooth 902 of cam lock 9 engages with locating slot 702 straightway of swivel head upper part 7, the rotation of tooth bar 5 driven gear 301 can not make cam lock 9 rotate, and reaches the object of locking.
Opening part on swivel head, has a positive stop lug boss, can limit the anglec of rotation of spanner, avoids rotating excessively.
Above specific embodiment of the utility model is described.It is to be appreciated that this utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (10)
1. control a bender structure, it is characterized in that, comprise as lower device:
-steering power input mechanism A;
-steering gear B;
-locking mechanism C;
-straight line power take-off mechanism D;
Further:
Steering power input mechanism A and the steering gear B of coaxial setting have opposed rotatable angular range in the circumferential; The process that steering power input mechanism A rotates from one end angle of described opposed rotatable angular range to other end angle relative to steering gear B, steering power input mechanism A is successively through relative angle: angle I, angular range II, angle III;
When steering power input mechanism A is in described angular range II, locking mechanism C locks steering gear B, makes to keep geo-stationary between steering gear B and straight line power take-off mechanism D;
When steering power input mechanism A is in described angle I, locking mechanism C is release steering gear B under the ordering about of steering power input mechanism A, further, steering gear B can rotate to the first circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement;
When steering power input mechanism A is in described angle III, locking mechanism C is release steering gear B under the ordering about of steering power input mechanism A, further, steering gear B can rotate to the second circumferencial direction away from angular range II with steering power input mechanism A and drive straight line power take-off mechanism D to be subjected to displacement; Wherein, the first circumferencial direction is contrary with the second circumferencial direction.
2. control bender structure according to claim 1, is characterized in that, the angular range between angle I and angle III forms described angular range II.
3. control bender structure according to claim 1, is characterized in that, steering gear B is along the circumferential direction provided with multiple locking bit, and along with the rotation of steering gear B, locking mechanism C can lock steering gear B in the locking bit of correspondence.
4. control bender structure according to any one of claim 1 to 3, it is characterized in that, described steering power input mechanism A is spanner (1), steering gear B comprises central shaft (3) and is arranged at the lock plate (2) on central shaft (3), locking mechanism C is slide block (4), and straight line power take-off mechanism D is tooth bar (5);
The pin-and-hole (102) of spanner (1) is coordinated by pin (6) with the scallop hole (303) of central shaft (3); The angle of scallop hole (303) forms described opposed rotatable angular range;
Spanner (1) is circumferentially provided with multiple switch teeth groove (103);
Lock plate (2) is circumferentially provided with multiple lock groove (202);
Slide block (4) is provided with the back-moving spring (401) of the release inclined-plane (403) coordinated with switch teeth groove (103), the locking boss (404) coordinated with lock groove (202) and release inclined-plane (403) push-on switch teeth groove (103) vallecular cavity that orders about slide block (4);
The gear (301) be arranged on central shaft (3) is engaged in described tooth bar (5).
5. control bender structure according to claim 4, is characterized in that, when pin (6) is positioned at one end of scallop hole (303), described spanner (1) is in angle I; When pin (6) is positioned at the other end of scallop hole (303), described spanner (1) is in angle III; When pin (6) is positioned at the region between one end of scallop hole (303) and the other end, described spanner (1) is in angular range II.
6. control bender structure according to claim 4, it is characterized in that, the vallecular cavity interior locking that formed lock plate (2) of described locking boss (404) by stretching into the described lock groove (202) forming described locking bit, and by inside contracting the release of back-shaped paired lock plate (2) from the vallecular cavity of described lock groove (202).
7. control bender structure according to claim 6, is characterized in that, described lock groove (202) comprises a straightway, and described locking boss (404) is by engaging with described straightway to lock described lock plate (2).
8. control bender structure according to claim 4, is characterized in that, also comprises swivel head (7);
Described spanner (1) is assemblied in the opening of swivel head (7);
The opening of swivel head (7) is provided with positive stop lug boss, described spanner (1) is provided with the angle limit groove (101) coordinated with positive stop lug boss.
9. a surgical instruments, is characterized in that, comprises the control bender structure according to any one of claim 1 to 8.
10. surgical instruments according to claim 9, is characterized in that, described surgical instruments is surgical stapling, and the straight line power take-off mechanism D of described control bender structure connects the jaw of anastomat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036643.1U CN204445993U (en) | 2015-01-19 | 2015-01-19 | A kind of surgical instruments and control bender structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036643.1U CN204445993U (en) | 2015-01-19 | 2015-01-19 | A kind of surgical instruments and control bender structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN204445993U true CN204445993U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520036643.1U Withdrawn - After Issue CN204445993U (en) | 2015-01-19 | 2015-01-19 | A kind of surgical instruments and control bender structure thereof |
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| Country | Link |
|---|---|
| CN (1) | CN204445993U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104546048A (en) * | 2015-01-19 | 2015-04-29 | 上海逸思医疗科技有限公司 | Surgical instrument and bending control mechanism thereof |
| WO2016115918A1 (en) * | 2015-01-19 | 2016-07-28 | 上海逸思医疗科技有限公司 | Turning control mechanism and surgical instrument having turning control mechanism |
| CN108938031A (en) * | 2018-07-31 | 2018-12-07 | 常州健瑞宝医疗器械有限公司 | The head adjustment mechanism of intracavitary Endo-GIA |
-
2015
- 2015-01-19 CN CN201520036643.1U patent/CN204445993U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104546048A (en) * | 2015-01-19 | 2015-04-29 | 上海逸思医疗科技有限公司 | Surgical instrument and bending control mechanism thereof |
| WO2016115918A1 (en) * | 2015-01-19 | 2016-07-28 | 上海逸思医疗科技有限公司 | Turning control mechanism and surgical instrument having turning control mechanism |
| WO2016115917A1 (en) * | 2015-01-19 | 2016-07-28 | 上海逸思医疗科技有限公司 | Surgical instrument and turning control mechanism thereof |
| CN108938031A (en) * | 2018-07-31 | 2018-12-07 | 常州健瑞宝医疗器械有限公司 | The head adjustment mechanism of intracavitary Endo-GIA |
| CN108938031B (en) * | 2018-07-31 | 2023-08-04 | 江苏健瑞宝医疗科技股份有限公司 | Head adjusting mechanism of intra-cavity cutting anastomat |
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