CN211704726U - Steering, centering and positioning device of endoscope anastomat and endoscope anastomat - Google Patents
Steering, centering and positioning device of endoscope anastomat and endoscope anastomat Download PDFInfo
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- CN211704726U CN211704726U CN201921951588.3U CN201921951588U CN211704726U CN 211704726 U CN211704726 U CN 211704726U CN 201921951588 U CN201921951588 U CN 201921951588U CN 211704726 U CN211704726 U CN 211704726U
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Abstract
The utility model discloses a chamber mirror anastomat turns to centering positioner and chamber mirror anastomat, when rotary mechanism drives to turn to the connecting rod removal and make nail casket subassembly rotatory to the meso position, the setting element part at least stretches into to rotary mechanism behind the recess, and with the inner wall of recess offsets, the sound and the vibration that the user can produce when the inner wall of setting element and recess offsets can accurately discern the nail casket subassembly rotatory to the meso position to it is more convenient to make the change nail casket, avoids the unable accuracy of user to judge whether the nail casket rotates to the meso position, leads to the nail casket to change the difficulty and influence the problem of reuse of apparatus.
Description
Technical Field
The utility model relates to the field of medical equipment, in particular to chamber mirror anastomat turns to centering positioner 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. To increase the flexibility of the endoscopic stapler, the magazine part of the endoscopic stapler is usually designed to be rotatable.
At present, the existing endoscope anastomat can replace the nail box after the nail box is rotated to the middle position, but a user cannot accurately judge whether the nail box is rotated to the middle position only by visual inspection, so that the nail box is difficult to replace, and the reuse of the instrument is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chamber mirror anastomat turns to centering positioner and chamber mirror anastomat to solve current chamber mirror anastomat and changing the nail casket in-process, the user only relies on the visual estimation can't accurately judge whether the nail casket rotates to the meso position, leads to the nail casket to change the difficulty and influence the problem of reuse of apparatus.
First aspect, according to the utility model discloses an embodiment provides a chamber mirror anastomat turns to centering positioner, include:
a housing with an accommodating cavity therein;
the rotating mechanism is arranged in the accommodating cavity and is provided with a groove;
one end of the steering connecting rod is connected with a nail box component of the endoscope anastomat, the other end of the steering connecting rod is connected with the rotating mechanism, and the rotating mechanism can drive the steering connecting rod to move in the rotating process so as to enable the nail box component to rotate;
the telescopic positioning piece is arranged in the accommodating cavity, and when the rotating mechanism drives the steering connecting rod to move so as to enable the nail box assembly to rotate to a middle position, at least part of the positioning piece extends into the groove of the rotating mechanism and abuts against the inner wall of the groove; when the rotating mechanism drives the steering connecting rod to move so as to deflect the nail box assembly, the positioning piece withdraws from the groove.
Specifically, the rotating mechanism comprises a rotating driving piece and a transmission piece connected with the rotating driving piece;
the outer peripheral wall of the rotary driving piece is sleeved with a first elastic component, the rotary driving piece can circumferentially rotate the first elastic component, an isolation part is arranged on the outer peripheral wall of the rotary driving piece, at least part of the inner side wall of the first elastic component is abutted against the isolation part, so that a gap is formed between the outer peripheral wall of the rotary driving piece and the inner side wall of the first elastic component;
the inner side wall of the accommodating cavity is in interference fit with the first elastic component, and the inner side wall of the accommodating cavity can enable the first elastic component to deform along the radial direction when the rotary driving piece drives the first elastic component to rotate.
Specifically, the transmission part comprises a swing angle rotating part, a swing angle connecting part and a swing angle supporting part;
the swing angle rotating piece is connected with the rotating driving piece and can rotate along with the rotation of the rotating driving piece;
the swing angle rotating piece is connected with the swing angle supporting piece through the swing angle connecting piece.
Specifically, a connecting part used for being connected with the rotary driving part is arranged on the upper surface of the swing angle rotating part, and a clamping groove matched with the connecting part is arranged on the rotary driving part, so that the swing angle rotating part is detachably connected with the rotary driving part; the lower surface of the swing angle rotating piece is a plane, and the groove is formed in the edge of the plane;
the swing angle rotating piece is also provided with a through hole for accommodating one end of the swing angle connecting piece, and one end of the swing angle connecting piece 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, the device further comprises a knob fixedly connected with the rotary driving member.
Specifically, the positioning member includes a second elastic member and a positioning portion;
one end of the second elastic component is connected with the inner side wall of the containing cavity, and the other end of the second elastic component is connected with the positioning part.
Specifically, one end of the positioning portion, which is far away from the second elastic component, is of a needle point-shaped structure.
Specifically, the first elastic component is a torsion spring, and the second elastic component is a spring.
In a second aspect, according to the utility model discloses an embodiment provides a chamber mirror anastomat, turn to centering positioner including foretell chamber mirror anastomat.
The embodiment of the utility model provides a chamber mirror anastomat turns to centering positioner and chamber mirror anastomat drives at rotary mechanism and turns to the connecting rod and remove and make the rotatory to the meso position of nail casket subassembly, the setting element part at least stretch into to behind rotary mechanism's the recess, and with the inner wall of recess offsets, and the sound that the user can produce when the inner wall of setting element and recess offsets and the vibration can accurately discern the nail casket subassembly rotatory to the meso position to it is more convenient to make the change nail casket, avoids the unable accuracy of user to judge whether the nail casket rotates to the meso position, leads to the nail casket to change the difficulty and influence the problem of reuse of apparatus.
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 an overall structure diagram of a steering, centering and positioning device of an endoscopic stapler provided by the utility model;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a side view of the transmission member;
FIG. 6 is a top view of the transmission member;
FIG. 7 is a diagram of the motion trajectory of the swing angle connector;
FIG. 8 is a block diagram of a pivot angle rotating member;
fig. 9 is a structural view of the pivot angle connecting pin.
Wherein, 1-shell, 2-steering connecting rod, 3-rotating mechanism, 31-transmission piece, 311-swing angle rotating piece, 3111-through hole, 3112-groove, 3113-connecting part, 312-swing angle connecting pin, 3121-limiting part, 313-swing angle supporting piece, 3131-opening, 32-rotating driving piece, 33-first elastic component, 4-positioning piece, 41-positioning part, 42-second elastic component, 5-knob, 6-connecting column and 7-steering lock.
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 2, there is provided a steering centering positioning device for an endoscopic stapler, including: a housing 1 with a containing cavity inside; the rotating mechanism 3 is arranged in the accommodating cavity, and a groove 3112 is formed in the rotating mechanism 3; one end of the steering connecting rod 2 is connected with a nail box component of the endoscope anastomat, the other end of the steering connecting rod 2 is connected with a rotating mechanism 3, and the rotating mechanism 3 can drive the steering connecting rod 2 to move in the rotating process so as to enable the nail box component to rotate; the telescopic positioning piece 4 is arranged in the accommodating cavity, and when the rotating mechanism 3 drives the steering connecting rod 2 to move so that the nail box assembly rotates to a middle position, at least part of the positioning piece 4 extends into the groove 3112 of the rotating mechanism 3 and abuts against the inner wall of the groove 3112; when the rotating mechanism 3 drives the steering link 2 to move so as to deflect the nail magazine assembly, the positioning member 4 is withdrawn from the groove 3112.
In this embodiment, the rotating mechanism 3 can drive the steering connecting rod 2 to act on the rotation of the nail magazine assembly, when the nail magazine assembly rotates to the middle position, at least part of the positioning member 4 extends into the groove 3112 of the rotating mechanism 3 and abuts against the inner wall of the groove 3112, so as to generate collision sound and slight vibration to remind a user that the nail magazine assembly rotates to the middle position, and the nail magazine can be replaced; during use of the magazine assembly, the magazine assembly is often in a deflected state, and the detent mechanism is withdrawn from the recess 3112 when the magazine assembly is deflected.
Wherein, the turning connecting rod 2 is movably connected with the eccentric shaft of the nail box component, and the movement of the turning connecting rod 2 can drive the eccentric shaft to rotate, so that the nail box component rotates, and the specific connection relation is the same as the connection relation between the turning connecting rod 2 and the nail box component in the existing endoscope anastomat, therefore, the detailed description is omitted in the embodiment.
The embodiment of the utility model provides a chamber mirror anastomat turns to centering positioner and chamber mirror anastomat, it turns to connecting rod 2 and removes and makes nail casket subassembly rotatory to the meso position to drive at rotary mechanism 3, setting element 4 part at least stretches into behind rotary mechanism 3's recess 3112, and offset with recess 3112's inner wall, the user can be at the sound that produces when setting element 4 offsets with recess 3112's inner wall and the vibration can accurately discern the nail casket subassembly rotatory to meso position, thereby it is more convenient to make the change nail casket, avoid the unable accuracy of user to judge whether the nail casket rotates to the meso position, lead to the nail casket to change the difficulty and influence the problem of reuse of apparatus.
In the above embodiment, as shown in fig. 3, the rotating mechanism 3 includes the rotary driving member 32 and the transmission member 31 connected to the rotary driving member 32; the outer peripheral wall of the rotary driving part 32 is sleeved with a first elastic part 33, the rotary driving part 32 can circumferentially rotate the first elastic part 33, an isolation part is arranged on the outer peripheral wall of the rotary driving part 32, and at least part of the inner side wall of the first elastic part 33 is abutted against the isolation part, so that a gap is generated between the outer peripheral wall of the rotary driving part 32 and the inner side wall of the first elastic part 33; the inside wall in holding chamber with first elastomeric element 33 interference fit, the inside wall in holding chamber can be in when rotary driving piece 32 drives first elastomeric element 33 and rotates, make first elastomeric element 33 produce deformation along radial direction.
In this embodiment, since the inner sidewall of the accommodating cavity is in interference fit with the first elastic member 33, a preload is generated on the first elastic member 33, that is, the first elastic member 33 is in a yielding state. When the rotating mechanism 3 drives the first elastic part 33 to rotate along one direction, the first elastic part 33 can expand along the radial direction, the inner side wall of the accommodating cavity is in contact with the outer side wall of the first elastic part 33 and generates friction force, and the friction force is greater than the reaction force of the steering connecting rod 2 to the rotating mechanism 3, so that the rotating mechanism 3 can enable the nail box assembly to rotate to a certain required angle in one rotating direction; similarly, when the rotating mechanism 3 drives the first elastic member 33 to rotate in the other direction, the first elastic member 33 contracts in the radial direction, and since the isolating member causes a gap to be formed between the outer peripheral wall of the rotary driving member 32 and the inner side wall of the first elastic member 33, the first elastic member 33 does not contact with the outer side wall of the rotary driving member 32 in the compression process, so that a large friction force is generated between the outer side wall of the first elastic member 33 and the inner side wall of the accommodating cavity, and therefore, the rotating mechanism 3 can rotate the magazine assembly to a required angle in the other rotating direction, thereby realizing a stepless swing angle. Wherein, the first elastic member 33 is a torsion spring.
In the above embodiment, as shown in fig. 3 to 5, the transmission member 31 includes a swing angle rotating member 311, a swing angle connecting member, and a swing angle supporting member; the swing angle rotating piece 311 is connected with the rotary driving piece 32, and the swing angle rotating piece 311 can rotate along with the rotation of the rotary driving piece 32; the swing angle rotating member 311 is connected to the swing angle supporting member through a swing angle connecting member.
Specifically, the upper surface of the swing angle rotating member 311 is provided with a connecting portion for connecting with the rotating driving member 32, the rotating driving member 32 is provided with a clamping groove matched with the connecting portion, so that the swing angle rotating member 311 is detachably connected with the rotating driving member 32, the lower surface of the swing angle rotating member 311 is a plane, and the groove 3112 is arranged on the edge of the plane; the swing angle rotating piece 311 is further provided with a through hole 3111 for accommodating one end of the swing angle connecting piece, and one end of the swing angle connecting piece extends into the through hole 3111; the swing angle supporting piece is provided with an opening used for moving the swing angle connecting piece, and the other end of the swing angle connecting piece extends into the opening.
As shown in fig. 6 and 7, the rotation driving member 32 is used to drive the swing angle rotating member 311 to rotate, so that the swing angle connecting member moves to one end of the opening in the opening of the swing angle supporting member, thereby driving the swing angle supporting member to move forward or backward, and further driving the turning connecting rod 2 to act on the magazine assembly to rotate. When the nail box component rotates to the middle position, at least part of the positioning piece 4 extends into the groove 3112 of the swing angle rotating piece 311 and is abutted against the inner wall of the groove 3112, so that collision sound and slight vibration are generated to remind a user that the nail box component rotates to the middle position, and the nail box can be replaced; during use of the magazine assembly, the magazine assembly is often in a deflected state, and the detent mechanism is withdrawn from the recess 3112 when the magazine assembly is deflected.
In the prior art, the lower surface of the swing angle rotating member 311 has a cylindrical cavity, so that in order to connect the swing angle rotating member 311 with the swing angle supporting member, the length of the swing angle connecting member is greater than the height of the peripheral wall of the cylindrical cavity, which increases the length of the swing angle connecting member, and the problem of insufficient swing angle of the nail magazine due to the fact that the swing angle connecting member is offset or falls off is easily caused in the process of swinging the nail magazine. In this embodiment, as shown in fig. 8, the swing angle rotating member 311 is reversely arranged, that is, the lower surface of the swing angle rotating member 311 does not have a cylindrical cavity, so that the length of the swing angle connecting member is greatly reduced, thereby reducing the shearing torque to the pin shaft during the swing angle, and avoiding the problem that the swing angle of the nail magazine is insufficient due to the fact that the swing angle connecting member is biased or falls off.
In the above embodiment, as shown in fig. 9, the pivot angle connecting member is a pivot angle connecting pin, and a convex limiting portion 3121 is provided on an outer peripheral wall between both ends of the pivot angle connecting pin. The limiting part can prevent the swing angle connecting pin from being separated from the opening on the swing angle supporting piece.
In the above embodiment, as shown in fig. 2, the endoscopic stapler steering centering positioning device further comprises a knob 5 fixedly connected to the rotary driving member 32. Specifically, the upper surface of the rotary driving member 32 is provided with a connecting column 6, the connecting column 6 is fixedly connected with the two ends of the rotation through a fixing pin, and the knob 5 can facilitate the user to rotate the rotary driving member 32.
In the above embodiment, as shown in fig. 2 and 4, the positioning member 4 includes the second elastic member 42 and the positioning portion 41; one end of the second elastic member 42 is connected to the inner sidewall of the accommodating chamber, and the other end of the second elastic member 42 is connected to the positioning portion 41. When the nail box assembly rotates to the middle position, the positioning part 41 is opposite to the groove 3112 of the swing angle rotating part 311, the second elastic part 42 extends, so that the positioning part 41 enters the groove 3112 and is abutted against the inner wall of the groove 3112, and collision sound and slight vibration are generated to remind a user that the nail box assembly rotates to the middle position; when the magazine assembly is rotated to be in the deflected state, the positioning member 4 is withdrawn from the recess 3112 of the swing angle rotating member 311 by the deformation of the second elastic member 42, and the second elastic member 42 is in the contracted state. Wherein the second elastic member 42 is a spring.
In the above embodiment, as shown in fig. 4, one end of the positioning portion 41 away from the second elastic member 42 is a needle-point-shaped structure. The needle-point structure facilitates the withdrawal of the positioning portion 41 from the groove 3112, thereby reducing the resistance.
In some embodiments, as shown in fig. 2, a steering lock 7 is further disposed in the accommodating cavity of the housing 1, and the steering of the magazine assembly is further positioned by using the steering lock 7, so as to achieve stepless steering.
In a second aspect, according to the utility model discloses an embodiment provides a chamber mirror anastomat, turn to centering positioner including foretell chamber mirror anastomat.
According to the technical solution provided by the utility model, the embodiment provides a cavity mirror anastomat turns to centering positioner and cavity mirror anastomat, drive at rotary mechanism 3 and turn to connecting rod 2 and remove and make the rotatory to the meso position of nail casket subassembly, 4 at least parts of setting element stretch into behind rotary mechanism 3's recess 3112, and offset with recess 3112's inner wall, the user can be at the sound that produces when the inner wall of setting element 4 and recess 3112 offsets and the vibration can accurately discern the nail casket subassembly is rotatory to the meso position, thereby it is more convenient to make the change nail casket, avoid the unable accuracy of user to judge whether the nail casket rotates to the meso position, lead to the nail casket to change the difficulty and influence the problem of reuse of apparatus.
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 (10)
1. The utility model provides an endoscope anastomat turns to centering positioner which characterized in that includes:
a shell (1) with an accommodating cavity inside;
the rotating mechanism (3) is installed in the accommodating cavity, and a groove (3112) is formed in the rotating mechanism (3);
one end of the steering connecting rod (2) is connected with a nail box component of the endoscope anastomat, the other end of the steering connecting rod (2) is connected with the rotating mechanism (3), and the rotating mechanism (3) can drive the steering connecting rod (2) to move in the rotating process so as to enable the nail box component to rotate;
the telescopic positioning piece (4) is arranged in the accommodating cavity, and when the rotating mechanism (3) drives the steering connecting rod (2) to move so that the nail box assembly rotates to a middle position, at least part of the positioning piece (4) extends into the groove (3112) of the rotating mechanism (3) and abuts against the inner wall of the groove (3112); when the rotating mechanism (3) drives the steering connecting rod (2) to move so as to deflect the nail box assembly, the positioning piece (4) is withdrawn from the groove (3112).
2. Endoscopic stapler steering centering positioning device according to claim 1, characterized in that said rotation mechanism (3) comprises a rotation drive (32) and a transmission (31) connected to said rotation drive (32);
a first elastic component (33) is sleeved on the peripheral wall of the rotary driving component (32), the rotary driving component (32) can circumferentially rotate the first elastic component (33), a separation part is arranged on the peripheral wall of the rotary driving component (32), at least part of the inner side wall of the first elastic component (33) is abutted against the separation part, so that a gap is generated between the peripheral wall of the rotary driving component (32) and the inner side wall of the first elastic component (33);
the inside wall in holding chamber with first elastomeric element (33) interference fit, the inside wall in holding chamber can be in rotatory driving piece (32) drive when first elastomeric element (33) rotate, make first elastomeric element (33) produce deformation along radial direction.
3. Endoscopic stapler steering centering positioning device according to claim 2, characterized in that said transmission (31) comprises a swing angle rotation member (311), a swing angle connection member and a swing angle support member (313);
the swing angle rotating piece (311) is connected with the rotary driving piece (32), and the swing angle rotating piece (311) can rotate along with the rotation of the rotary driving piece (32);
the swing angle rotating piece (311) is connected with the swing angle supporting piece (313) through the swing angle connecting piece.
4. The endoscopic stapler steering, centering and positioning device according to claim 3, wherein the upper surface of the swing angle rotating member (311) is provided with a connecting portion (323) for connecting with the rotating driving member (32), the rotating driving member (32) is provided with a clamping slot matched with the connecting portion (323) so as to detachably connect the swing angle rotating member (311) with the rotating driving member (32); the lower surface of the swing angle rotating piece (311) is a plane, and the groove (3112) is formed in the edge of the plane;
the swing angle rotating piece (311) is also provided with a through hole (3111) for accommodating one end of the swing angle connecting piece, and one end of the swing angle connecting piece extends into the through hole (3111);
an opening (3131) for the swing angle connecting piece to move is arranged on the swing angle supporting piece (313), and the other end of the swing angle connecting piece extends into the opening (3131).
5. The steering, centering and positioning device of the endoscopic stapler according to claim 4, wherein the swing angle connecting piece is a swing angle connecting pin (312), and a convex limiting part (3121) is provided on the outer peripheral wall between the two ends of the swing angle connecting pin (312).
6. Endoscopic stapler steering centering positioning device according to claim 2, characterized in that said device further comprises a knob (5) fixedly connected to said rotary drive (32).
7. Endoscopic stapler steering centering positioning device according to claim 2, characterized in that said positioning member (4) comprises a second elastic part (42) and a positioning portion (41);
one end of the second elastic component (42) is connected with the inner side wall of the accommodating cavity, and the other end of the second elastic component (42) is connected with the positioning part (41).
8. The endoscopic stapler steering centering positioning device according to claim 7, wherein an end of the positioning portion (41) far away from the second elastic member (42) is a needle point-like structure.
9. Endoscopic stapler steering centering positioning device according to claim 7, characterized in that said first elastic means (33) is a torsion spring and said second elastic means (42) is a spring.
10. Endoscopic stapler comprising a steering centering positioning device according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951588.3U CN211704726U (en) | 2019-11-13 | 2019-11-13 | Steering, centering and positioning device of endoscope anastomat and endoscope anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951588.3U CN211704726U (en) | 2019-11-13 | 2019-11-13 | Steering, centering and positioning device of endoscope anastomat and endoscope anastomat |
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| Publication Number | Publication Date |
|---|---|
| CN211704726U true CN211704726U (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921951588.3U Active CN211704726U (en) | 2019-11-13 | 2019-11-13 | Steering, centering and positioning device of endoscope anastomat and endoscope anastomat |
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| CN (1) | CN211704726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024114466A1 (en) * | 2022-12-01 | 2024-06-06 | 天臣国际医疗科技股份有限公司 | Swivel head mechanism and surgical stapler |
-
2019
- 2019-11-13 CN CN201921951588.3U patent/CN211704726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024114466A1 (en) * | 2022-12-01 | 2024-06-06 | 天臣国际医疗科技股份有限公司 | Swivel head mechanism and surgical stapler |
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