CN211704727U - Steering self-locking device of endoscope anastomat and endoscope anastomat - Google Patents
Steering self-locking device of endoscope anastomat and endoscope anastomat Download PDFInfo
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- CN211704727U CN211704727U CN201922383308.XU CN201922383308U CN211704727U CN 211704727 U CN211704727 U CN 211704727U CN 201922383308 U CN201922383308 U CN 201922383308U CN 211704727 U CN211704727 U CN 211704727U
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Abstract
The utility model discloses a chamber mirror anastomat turn to self-lock device and chamber mirror anastomat, utilize actuating mechanism to pass through the worm and drive the worm wheel rotation, thereby the messenger turns to pushing mechanism and drives the nail casket and rotate, and the helical angle of worm is less than the friction angle of worm wheel and worm contact surface, the reaction force of nail casket can't make the worm wheel drive the worm and rotate, just so realize the auto-lock of arbitrary angle, thereby can be accurate with the nail casket rotate required angle, and utilize gear drive, it is comparatively steady at the rotation in-process, avoid producing great rocking, improve the result of use of chamber mirror anastomat.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to chamber mirror anastomat turn to self-lock device and chamber mirror anastomat.
Background
Laparoscopic surgery uses modern photography and high-tech surgical instrument equipment to perform minimally invasive surgical techniques of complex thoracic/intra-abdominal surgery under a thoracic/abdominal wall cannula or a tiny incision. Only 1-3 thoracic/abdominal wall small holes of 1.5 cm are needed to be made for completing the endoscopic surgery, and during the surgery, the endoscopic anastomat is inserted from the thoracic/abdominal wall holes to complete the surgery. In order to improve the flexibility of the endoscopic stapler, a steering device is usually connected to the staple box portion of the endoscopic stapler, and the medical staff rotates the steering device to rotate the staple box.
At present, the device that turns to of current chamber mirror anastomat utilizes the interference fit between torsional spring and the yaw casing usually, utilizes frictional force each other to realize the rotation and the locking of arbitrary angle, but at the rotation in-process, causes the increase of torsional spring external diameter easily or reduces the deviation great, leads to the auto-lock effect unstable, and difficult accurate rotates the required angle with the nail casket to at the rotation in-process, can produce great rocking, influence the use of chamber mirror anastomat.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chamber mirror anastomat turn to self-lock device and chamber mirror anastomat to solve the device that turns to of current chamber mirror anastomat, at the rotation in-process, cause the increase of torsional spring external diameter easily or reduce the deviation great, lead to the auto-lock effect unstable, the difficult accurate nail casket rotates required angle, and at the rotation in-process, can produce great rocking, influence the problem of the use of chamber mirror anastomat.
In a first aspect, according to an embodiment of the utility model, a steering self-locking device of a cavity mirror anastomat is provided, which comprises a driving mechanism, a rotation self-locking mechanism and a steering pushing mechanism;
the rotation self-locking mechanism comprises a worm wheel and a worm, one end of the worm is in transmission connection with the driving mechanism, the worm is meshed with the worm wheel, the worm wheel is in transmission connection with the steering pushing mechanism, and the spiral angle of the worm is smaller than the friction angle of the contact surface of the worm wheel and the worm.
Specifically, the driving mechanism comprises a driving bevel gear, a first driven bevel gear disc and a second driven bevel gear disc;
the driving bevel gear is meshed with the first driven bevel gear disc, and the first driven bevel gear disc is meshed with the second driven bevel gear disc;
one end of the worm is connected with the central hole of the second driven bevel gear disc.
Specifically, the steering pushing mechanism comprises a swing angle rotating part, a swing angle connecting part, a swing angle supporting part and a steering connecting rod;
the swing angle rotating piece is connected with the worm wheel, the swing angle rotating piece is connected with the swing angle supporting piece through the swing angle connecting piece, and the swing angle supporting piece is connected with the steering connecting rod.
Specifically, the swing angle rotating part comprises a rotating body, a connecting shaft is arranged in the middle of the upper surface of the rotating body and connected with a central hole of the worm gear, a through hole is formed in the rotating body, and one end of the swing angle connecting part extends into the through hole;
the swing angle support piece is provided with an opening used for movement of the swing angle connecting piece, and the other end of the swing angle connecting piece extends into the opening.
Specifically, the swing angle connecting piece is a swing angle connecting pin, and a raised limiting part is arranged on the peripheral wall between the two ends of the swing angle connecting pin.
Specifically, a rotary shaft of the driving bevel gear is connected with a knob.
Specifically, the worm stretches into the periphery wall of the one end of the driven bevel gear dish centre bore of second is equipped with first joint portion, the internal perisporium of the centre bore of the driven bevel gear of second is equipped with the second joint portion with first joint portion joint.
Specifically, first joint portion is the arch, second joint portion is the draw-in groove, perhaps first joint portion is the draw-in groove, second joint portion is the arch.
In a second aspect, according to the embodiment of the utility model, a cavity mirror anastomat is provided, including foretell cavity mirror anastomat turn to self-lock device.
The embodiment of the utility model provides a chamber mirror anastomat turn to self-lock device and chamber mirror anastomat, it drives the worm wheel rotation to utilize actuating mechanism to pass through the worm, thereby make to turn to pushing mechanism and drive the nail casket and rotate, and the helical angle of worm is less than the friction angle of worm wheel and worm contact surface, the reaction force of nail casket can't make the worm wheel drive the worm and rotate, just so realize the auto-lock of arbitrary angle, thereby can be accurate with the nail casket rotate required angle, and utilize gear drive, it is comparatively steady at the rotation in-process, avoid producing great rocking, the result of use of chamber mirror anastomat is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a steering self-locking device of an endoscopic stapler according to an embodiment of the present invention;
FIG. 2 is an exploded view of the rotational self-locking mechanism and the driving mechanism;
FIG. 3 is a structural view of the steering pushing mechanism;
FIG. 4 is a top view of the steering pushing mechanism;
FIG. 5 is a block diagram of a pivot angle rotating member;
FIG. 6 is a block diagram of a pivot angle joint;
fig. 7 is a structural view of the swing angle supporting member.
The automatic steering mechanism comprises a rotating self-locking mechanism 1, a worm 11, a worm wheel 12, a worm wheel 2, a driving mechanism 21, a driving bevel gear, a first driven bevel gear plate 22, a second driven bevel gear plate 23, a steering pushing mechanism 3, a swing angle rotating part 31, a rotating body 311, a connecting shaft 312, a through hole 313, a swing angle connecting pin 32, a limiting part 321, a swing angle supporting part 33, an opening 331, a steering connecting rod 34 and a knob 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In a first aspect, according to an embodiment of the present invention, as shown in fig. 1 and fig. 2, a steering self-locking device of a cavity mirror anastomat is provided, which includes a driving mechanism 2, a rotation self-locking mechanism 1 and a steering pushing mechanism 3; the rotation self-locking mechanism 1 comprises a worm wheel 12 and a worm 11, one end of the worm 11 is in transmission connection with the driving mechanism 2, the worm 11 is meshed with the worm wheel 12, the worm wheel 12 is in transmission connection with the steering pushing mechanism 3, and the spiral angle of the worm 11 is smaller than the friction angle of the contact surface of the worm wheel 12 and the worm 11.
Wherein, the steering pushing mechanism 3 is movably connected with a swing angle pull rod of the nail box component. The driving mechanism 2 drives the worm wheel 12 to rotate through the worm 11, so that the steering pushing mechanism 3 drives the nail box to rotate, the helical angle of the worm 11 is smaller than the friction angle of the contact surface of the worm wheel 12 and the worm 11, the reaction force of the nail box cannot enable the worm wheel 12 to drive the worm 11 to rotate, and self-locking at any angle is achieved.
The embodiment of the utility model provides a chamber mirror anastomat turn to self-lock device, utilize actuating mechanism 2 to drive worm wheel 12 through worm 11 and rotate, thereby the messenger turns to pushing mechanism 3 and drives the nail casket and rotates, and the helical angle of worm 11 is less than the friction angle of worm wheel 12 with the 11 contact surface of worm, the reaction force of nail casket can't make worm wheel 12 drive worm 11 and rotate, just so realize the auto-lock of arbitrary angle, thereby can be accurate with the nail casket rotate required angle, and utilize gear drive, it is comparatively steady at the rotation in-process, avoid producing great rocking, improve the result of use of chamber mirror anastomat.
In the above embodiment, as shown in fig. 2, the drive mechanism 2 includes the driving bevel gear 21, the first driven bevel gear disc 22, and the second driven bevel gear disc 23; the driving bevel gear 21 is meshed with a first driven bevel gear disc 22, and the first driven bevel gear disc 22 is meshed with a second driven bevel gear disc 23; one end of the worm 11 is connected to the central hole of the second driven bevel gear disc 23. Wherein, the rotating shaft of the driving bevel gear 21 is connected with a knob 4, and the knob 4 can facilitate the user to rotate the driving bevel gear 21.
In this embodiment, the driving bevel gear 21 is used to drive the second driven bevel gear plate 23 to rotate through the first driven bevel gear plate 22, so that the rotation of the second driven bevel gear plate 23 drives the worm 11 connected to the central hole to rotate, and further drives the worm wheel 12 to rotate through the rotation of the worm 11. The transmission is carried out by utilizing the meshing between the gears, and compared with a torsion spring in the prior art, the rotation angle is more easily controlled, and the transmission is more reliable.
In the above embodiment, as shown in fig. 2, 3 and 4, the steering pushing mechanism 3 includes the swing angle rotating member 31, the swing angle connecting member, the swing angle supporting member 33 and the steering connecting rod 34; the swing angle rotating member 31 is connected to the worm wheel 12, the swing angle rotating member 31 is connected to the swing angle supporting member 33 through a swing angle connecting member, and the swing angle supporting member 33 is connected to the steering connecting rod 34.
Specifically, as shown in fig. 5 and 7, the swing angle rotating member 31 includes a rotating body 311, a connecting shaft 312 is disposed in the middle of the upper surface of the rotating body 311, the connecting shaft 312 is connected to the central hole of the worm wheel 12, the rotating body 311 is further provided with a through hole 313, and one end of the swing angle connecting member extends into the through hole 313; the swing angle support 33 is provided with an opening 331 for the swing angle connecting piece to move, and the other end of the swing angle connecting piece extends into the opening 331.
The worm wheel 12 is used to drive the rotating body 311 to rotate, so that the swing angle connecting piece moves from one end of the opening 331 of the swing angle supporting piece 33 to the other end of the opening 331 to drive the swing angle supporting piece 33 to move forwards or backwards, and further drive the steering connecting rod 34 to act on the swing angle pull rod of the nail box, so that the nail box rotates.
In the above embodiment, as shown in fig. 6, the pivot angle connector is a pivot angle connecting pin 32, and a convex limiting portion 321 is provided on the outer peripheral wall between the two ends of the pivot angle connecting pin 32. The stopper 321 prevents the pivot connecting pin 32 from coming out of the opening 331 of the pivot support 33.
In the above embodiment, the outer peripheral wall of the end of the worm 11 extending into the central hole of the second driven bevel gear plate 23 is provided with a first clamping portion, and the inner peripheral wall of the central hole of the second driven bevel gear is provided with a second clamping portion clamped with the first clamping portion. Wherein, first joint portion is the arch, and second joint portion is the draw-in groove, perhaps first joint portion is the draw-in groove, and second joint portion is the arch. Utilize first joint portion and second joint portion can make second driven gear dish and worm 11 synchronous rotation, guarantee driven reliability.
In a second aspect, according to the embodiment of the utility model, a cavity mirror anastomat is provided, including foretell cavity mirror anastomat turn to self-lock device.
The embodiment of the utility model provides a chamber mirror anastomat turn to self-lock device and chamber mirror anastomat, utilize actuating mechanism 2 to drive worm wheel 12 through worm 11 and rotate, thereby the messenger turns to pushing mechanism 3 and drives the nail casket and rotates, and the helical angle of worm 11 is less than the friction angle of worm wheel 12 and the 11 contact surfaces of worm, the reaction force of nail casket can't make worm wheel 12 drive worm 11 and rotate, just so realize the auto-lock of arbitrary angle, thereby can be accurate with the nail casket rotate required angle, and utilize gear drive, it is comparatively steady at the rotation in-process, avoid producing great rocking, improve the result of use of chamber mirror anastomat.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (9)
1. A steering self-locking device of an endoscope anastomat is characterized by comprising a driving mechanism (2), a rotating self-locking mechanism (1) and a steering pushing mechanism (3);
rotate self-locking mechanism (1) and include worm wheel (12) and worm (11), the one end of worm (11) with actuating mechanism (2) transmission is connected, worm (11) with worm wheel (12) mesh mutually, worm wheel (12) with turn to pushing mechanism (3) transmission and be connected, the helix angle of worm (11) is less than worm wheel (12) with the friction angle of worm (11) contact surface.
2. The steering self-locking device of endoscopic stapler according to claim 1, characterized in that said driving mechanism (2) comprises a driving bevel gear (21), a first driven bevel gear disk (22) and a second driven bevel gear disk (23);
the driving bevel gear (21) is meshed with the first driven bevel gear disc (22), and the first driven bevel gear disc (22) is meshed with the second driven bevel gear disc (23);
one end of the worm (11) is connected with a central hole of the second driven bevel gear disc (23).
3. The steering self-locking device of an endoscopic stapler according to claim 2, wherein the steering pushing mechanism (3) comprises a swing angle rotating member (31), a swing angle connecting member, a swing angle supporting member (33) and a steering connecting rod (34);
the swing angle rotating piece (31) is connected with the worm wheel (12), the swing angle rotating piece (31) is connected with the swing angle supporting piece (33) through the swing angle connecting piece, and the swing angle supporting piece (33) is connected with the steering connecting rod (34).
4. The steering self-locking device of the endoscopic anastomat according to claim 3, wherein the swing angle rotating piece (31) comprises a rotating body (311), a connecting shaft (312) is arranged in the middle of the upper surface of the rotating body (311), the connecting shaft (312) is connected with a central hole of the worm gear (12), a through hole (313) is further formed in the rotating body (311), and one end of the swing angle connecting piece extends into the through hole (313);
an opening (331) for movement of the swing angle connecting piece is formed in the swing angle supporting piece (33), and the other end of the swing angle connecting piece extends into the opening (331).
5. The steering self-locking device of the endoscopic stapler according to claim 4, wherein the swing angle connecting piece is a swing angle connecting pin (32), and a convex limiting part (321) is arranged on the outer peripheral wall between the two ends of the swing angle connecting pin (32).
6. The steering self-locking device of the endoscopic stapler according to claim 2, wherein a knob (4) is connected to the rotating shaft of the driving bevel gear (21).
7. The steering self-locking device of the endoscopic anastomat as claimed in claim 2, wherein the outer peripheral wall of one end of the worm (11) extending into the central hole of the second driven bevel gear disc (23) is provided with a first clamping part, and the inner peripheral wall of the central hole of the second driven bevel gear is provided with a second clamping part clamped with the first clamping part.
8. The steering self-locking device of the endoscopic anastomat according to claim 7, wherein the first clamping portion is a protrusion, the second clamping portion is a clamping groove, or the first clamping portion is a clamping groove, and the second clamping portion is a protrusion.
9. Endoscopic stapler characterized in that it comprises a steering self-locking device of an endoscopic stapler according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922383308.XU CN211704727U (en) | 2019-12-26 | 2019-12-26 | Steering self-locking device of endoscope anastomat and endoscope anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922383308.XU CN211704727U (en) | 2019-12-26 | 2019-12-26 | Steering self-locking device of endoscope anastomat and endoscope anastomat |
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| Publication Number | Publication Date |
|---|---|
| CN211704727U true CN211704727U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922383308.XU Active CN211704727U (en) | 2019-12-26 | 2019-12-26 | Steering self-locking device of endoscope anastomat and endoscope anastomat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116250881A (en) * | 2023-02-08 | 2023-06-13 | 苏州勤灏精密机械有限公司 | Endoscope anastomat with steering self-locking mechanism and working method thereof |
-
2019
- 2019-12-26 CN CN201922383308.XU patent/CN211704727U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116250881A (en) * | 2023-02-08 | 2023-06-13 | 苏州勤灏精密机械有限公司 | Endoscope anastomat with steering self-locking mechanism and working method thereof |
| CN116250881B (en) * | 2023-02-08 | 2024-02-20 | 苏州勤灏精密机械有限公司 | Endoscope anastomat with steering self-locking mechanism and working method thereof |
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