CN215129359U

CN215129359U - Nail box turning control mechanism and anastomat

Info

Publication number: CN215129359U
Application number: CN202120753485.7U
Authority: CN
Inventors: 刘子贤; 张勤; 刘子德
Original assignee: Suzhou Meidong Huicheng Precision Parts Co ltd
Current assignee: Suzhou Meidong Huicheng Precision Parts Co ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-14
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a nail casket turn control mechanism and anastomat, this nail casket turn control mechanism includes: the shell comprises a lower shell and an upper shell connected with the lower shell, and the top of the upper shell is provided with an opening; the steering bracket is arranged in the lower shell, and one end of the steering bracket is connected to the nail box through a steering connecting rod so as to drive the nail box to act; one end of the rotating shaft is connected to the steering support, and the other end of the rotating shaft penetrates through the opening and extends out of the upper shell; the gear control assembly is sleeved on the rotating shaft in the opening and rotates along with the rotating shaft so as to realize different angle adjustment of the nail box; and the knob is connected with the end part of the rotating shaft through a connecting piece so as to drive the steering connecting rod and the nail box to turn through the rotating shaft. The utility model discloses knob and nail casket are connected in the pivot, drive gear control assembly simultaneously and rotate, and whole rotation process is level and smooth and easy and can not influenced by mounting process or processing method, the operation of being convenient for.

Description

Nail box turning control mechanism and anastomat

Technical Field

The utility model relates to the field of medical equipment, in particular to nail casket turning control mechanism and anastomat.

Background

In the surgical operation, the minimally invasive surgery only needs to make 3 to 5 small incisions on the body of a patient, establish a narrow instrument channel, extend an instrument with an elongated rod into the body to cut and suture the lesion tissue, and then take the cut lesion tissue out of the channel. The minimally invasive surgery has the advantages of small local trauma, light systemic reaction, quick postoperative recovery and the like, so the minimally invasive surgery is widely applied.

An anastomat is a surgical instrument applied to minimally invasive or open surgery for cutting, transecting and suturing lung, bronchial tissue, stomach, intestine and the like. When in use, the front end of the anastomat is connected with the replaceable disposable nail box. The front end of the disposable nail box is a V-shaped opening jaw in an initial state. By operating the stapler, the opening and closing operations of the staple box jaw can be realized. The jaw part of the nail box clamps lesion tissues to be cut off, so that the cutting and suturing operations of the nail box on human tissues can be realized.

In the prior structure, the nail box has two control modes, one mode is to control the turning angle of the nail box through the meshing of triangular teeth, but the triangular teeth are easy to wear during operation, so that the positioning is not firm and the nail box is easy to shake. The other control mode is that the upper cover of the rotary table connected with the nail box and the rotary upper shell are welded into a whole through ultrasonic waves, the structure can stably and smoothly rotate the nail box, but the structure is easily influenced by a welding process, namely if the welding is not firm, the structure is influenced by the reaction force of mechanical operation, the risk of welding seam disconnection exists, parts can fall off, and the steering mechanism fails.

SUMMERY OF THE UTILITY MODEL

The utility model provides a nail casket turn control mechanism and anastomat to solve the above-mentioned technical problem who exists among the prior art.

In order to solve the technical problem, the utility model provides a nail casket turning control mechanism, include:

the shell comprises a lower shell and an upper shell connected with the lower shell, and the top of the upper shell is provided with an opening;

the steering bracket is arranged in the lower shell, and one end of the steering bracket is connected to the nail box through a steering connecting rod so as to drive the nail box to act;

one end of the rotating shaft is connected to the steering support, and the other end of the rotating shaft penetrates through the opening and extends out of the upper shell;

the gear control assembly is sleeved on the rotating shaft in the opening and rotates along with the rotating shaft so as to realize different angle adjustment of the nail box; and

the knob is connected with the end part of the rotating shaft through a connecting piece so as to drive the steering connecting rod and the nail box to turn through the rotating shaft.

Preferably, the rotating shaft is connected to the steering support through a steering cam, the steering cam is not overlapped with the rotating center of the rotating shaft, a strip-shaped hole matched with the steering cam is formed in the steering support, and the length direction of the strip-shaped hole is perpendicular to the front-back movement direction of the steering connecting rod.

Preferably, the nail box locking device further comprises a steering lock movably arranged in the lower shell, a control block is arranged on the steering lock, a control notch is formed in one end, far away from the nail box, of the steering support, and the control block is matched with the control notch to lock the direction of the nail box.

Preferably, the gear control assembly includes:

the rotary table is provided with a plurality of step holes which are circumferentially arranged;

the ball assembly is sleeved in the stepped hole of the rotary table and is installed into the opening together with the rotary table; wherein,

the ball bearing assembly is characterized in that a gear disc is arranged in the opening, round holes which are circumferentially arranged are formed in the gear disc, and the round holes are matched with the ball bearing assembly to form different control gears.

Preferably, the gear control assembly further comprises a limiting block, and the limiting block is located above the turntable and connected to the gear disc through a fixing pin.

Preferably, the gear control assembly further comprises a turntable upper cover, a buckle used for being connected with the upper shell is arranged below the turntable upper cover, a through hole is formed in the middle of the turntable upper cover, and arc-shaped holes which are arranged on an arc with the through hole as a circle center are formed in the through hole.

Preferably, the handle further comprises a guide rod, one end of the guide rod extends into the arc-shaped hole, and the other end of the guide rod is connected to the knob.

Preferably, the ball assembly includes: the bottom of the sleeve is limited in the stepped hole, and the ball is pressed downwards to a gear disc below the rotary disc by the spring.

Preferably, the rotating shaft is provided with a groove extending along the axial direction, and the middle parts of the knob, the rotating disc and the rotating disc upper cover are provided with convex edges matched with the groove.

The utility model also provides an anastomat, include nail casket turn control mechanism.

Compared with the prior art, the utility model discloses a nail casket turn control mechanism, include: the shell comprises a lower shell and an upper shell connected with the lower shell, and the top of the upper shell is provided with an opening; the steering bracket is arranged in the lower shell, and one end of the steering bracket is connected to the nail box through a steering connecting rod so as to drive the nail box to act; one end of the rotating shaft is connected to the steering support, and the other end of the rotating shaft penetrates through the opening and extends out of the upper shell; the gear control assembly is sleeved on the rotating shaft in the opening and rotates along with the rotating shaft so as to realize different angle adjustment of the nail box; and the knob is connected with the end part of the rotating shaft through a connecting piece so as to drive the steering connecting rod and the nail box to turn through the rotating shaft. The utility model discloses knob and nail casket are connected in the pivot, drive gear control assembly simultaneously and rotate, and whole rotation process is level and smooth and easy and can not influenced by mounting process or processing method, the operation of being convenient for.

Drawings

FIG. 1 is a cross-sectional view of the nail magazine turning control mechanism of the present invention;

FIG. 2 is an exploded view of the magazine turning control mechanism of the present invention;

fig. 3 is a schematic structural diagram of the middle knob of the present invention.

Shown in the figure:

1. a housing; 11. a lower case; 12. an upper shell; 13. an opening; 14. a gear disc;

2. a steering bracket; 21. a control slot; 22. hooking; 23. a strip-shaped hole;

3. a steering lock; 31. a control block;

4. a rotating shaft; 41. a groove;

5. a gear control assembly; 51. a turntable; 511. a stepped hole; 52. a turntable upper cover; 521. buckling; 522. an arc-shaped hole; 53. a limiting block; 54. a fixing pin; 55. a guide bar; 56. a sleeve; 57. a spring; 58. a ball bearing;

6. a knob; 601. a rib;

7. a steering link;

8. a connecting member;

9. a steering cam.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The utility model provides an anastomat, the anastomat includes nail casket turn control mechanism. As shown in fig. 1 to 3, the magazine turning control mechanism includes: casing 1, the support 2 that turns to that is located casing 1 turns to, with turn to support 2 complex and turn to lock 3, one end with turn to support 2 and be connected, the other end stretches out casing 1's pivot 4, control the gear control assembly 5 of pivot 4 and connection the knob 6 of the 4 other ends of pivot.

Referring to fig. 1 and 2 with emphasis, the housing 1 includes a lower shell 11 and an upper shell 12 connected to the lower shell 11, and an opening 13 is formed at the top of the upper shell 12. A gear plate 14 is disposed in the opening 13, and the upper shell 12 extends upward along the peripheral edge of the opening 13 to form a receiving cavity together with the gear plate 14, wherein the receiving cavity is used for placing the gear control assembly 5.

The steering support 2 and the steering lock 3 are movably arranged in the lower shell 11, and the steering support 2 is positioned on the steering lock 3. The steering lock 3 is provided with a control block 31, one end of the steering support 2, which is far away from the nail box, is provided with a control notch 21, and the control block 31 is matched with the control notch 21 to lock the nail box. One end of the steering support 2 close to the nail box is provided with a hook 22, the hook 22 is hooked into a square hole at one end of the steering connecting rod 7, the other end of the steering connecting rod 7 is connected to a turning control rod of the nail box, and the turning control rod of the nail box can be controlled through the steering support 2 and the steering connecting rod 7 so as to drive the nail box to move.

One end of the rotating shaft 4 is connected to the steering support 2, the other end of the rotating shaft 4 penetrates through the opening 13 and extends out of the upper shell 12 to be connected with the knob 6, and the rotating knob 6 is rotated to drive the rotating shaft 4 to rotate so as to drive the steering support 2 to deflect, so that the nail box is driven to steer.

The knob 6 is connected with the end part of the rotating shaft 4 through a connecting piece 8 so as to drive the steering connecting rod 7 and the nail box to turn through the rotating shaft 4. Specifically, the ends of the knob 6 and the rotating shaft 4 are both provided with connecting holes, the connecting piece 8 adopts a pin, and the pin sequentially penetrates through the connecting holes of the knob 6 and the rotating shaft 4, so that the knob 6 is fixedly connected with the rotating shaft 4. The knob 6 is connected with the rotating shaft 4 through the connecting piece 8, the nail box can be driven to turn through the rotating shaft 4, the rotating process is convenient to control, the operation is stable, smooth, light, soft and labor-saving, and no harsh feeling is caused.

Preferably, the rotating shaft 4 is connected to the steering bracket 2 through a steering cam 9, the steering cam 9 is not overlapped with the rotating center of the rotating shaft 4, a strip-shaped hole 23 matched with the steering cam 9 is formed in the steering bracket 2, and the length direction of the strip-shaped hole 23 is perpendicular to the front-back movement direction of the steering connecting rod 7. Specifically, when the knob 6 is twisted, the knob 6 rotates with the rotating shaft 4. The steering cam on the rotating shaft 4 drives the steering bracket to move left or right, and the moving direction is determined according to the rotating direction of the knob. The steering support 2 moves together with the steering link 7 in the same direction. After the magazine is loaded, the steering link 7 is in a loose-lock connection with the turn lever on the magazine, so that the motion of the steering link 7 drives the turn lever of the magazine to thereby effect the turning of the magazine.

With continued reference to fig. 1 to 3, the gear control component 5 is sleeved on the rotating shaft 4 located in the opening 13 and rotates along with the rotating shaft 4 to realize different angle control of the nail magazine, that is, the gear control component 5 can limit the nail magazine at different angles, so as to prevent the nail magazine from deflecting during operation.

Specifically, the gear position control assembly 5 includes: turntable 51, turntable upper cover 52, stopper 53, guide rod 55 and ball assembly.

The turntable 51 is provided with a plurality of step holes 511 which are circumferentially arranged, and the ball assembly is sleeved in the step holes 511 of the turntable.

Specifically, the ball assembly includes: a sleeve 56, a spring 57 disposed in the sleeve 56, and a ball 58, wherein the bottom of the sleeve 56 is limited by the stepped hole 511, and the ball 58 is pressed down to the shift disk 14 below the rotary disk 51 by the spring 57. The gear disc 14 is provided with circular holes which are circumferentially arranged, and the circular holes and the ball components are matched to form different control gears. Specifically, the ball assembly is used for cooperating with the gear plate 14 to position the rotation angle of the nail box, so as to form a plurality of gears. When the knob 6 is twisted, the rotary disc 51 moves together with the balls 58 through the sleeve 56, and as the rotary disc rotates, the balls 58 move in the sleeve 56 to compress the spring 57, and when the balls 58 reach the next round hole of the shift disc 14, the balls 58 are clamped into the round holes under the restoring force of the spring 57, so that the turning operation of an angle is completed. When the gear disc rotates, the ball 58 compresses the spring 57, the contact between the ball 58 and the gear disc 14 is the contact between a spherical surface and a plane, the friction force is small, the rotation operation is stable, smooth, light, soft and labor-saving, no harsh feeling and no harsh clicking sound are generated, and due to the action of the spring 57, the friction force is small and the operation is light and convenient during turning.

The limiting block 53 is located above the rotary disc 51 and connected to the shift disc 14 through a fixing pin 54, so as to limit the ball assembly and the rotary disc 51, and prevent the rotary disc 51 or the ball assembly from being jammed due to inclination.

A buckle 521 is arranged below the turntable upper cover 52, a buckle position is correspondingly arranged in the upper shell 12, and the buckle 521 is clamped into the buckle position to complete the installation and fixation of the turntable upper cover 52.

A through hole is formed in the middle of the turntable upper cover 52, and an arc-shaped hole 522 arranged on an arc with the through hole as a circle center is formed in the through hole. One end of the guide rod 55 extends into the arc-shaped hole 522, and the other end of the guide rod 55 is connected to the knob 6. The knob 6 drives the guide rod 55 to rotate in the arc-shaped hole 522 in a reciprocating manner, so that the angle of the nail box is adjusted. That is, the arc hole 522 provides guidance for the knob 6 through the guide rod 55, while limiting the rotation angle of the knob 6 by controlling the angle of the arc hole 522.

Preferably, the rotating shaft 4 is provided with a groove 41 extending along the axial direction, and the middle parts of the knob 6, the rotating disc 51 and the rotating disc upper cover 52 are provided with a rib 601 matched with the groove 41. That is, in addition to the connecting member 8, the knob 6 is engaged with the rotating shaft 4 through the rib 601, so as to rotate the rotating shaft 4. The rotating shaft 4 drives the rotary disc 51, the rotary disc upper cover 52 and the ball assembly arranged between the rotary disc upper cover 52 and the rotary disc 51 to rotate by means of the matching of the groove 41 and the rib 601.

Referring to fig. 1 to 3, the working process of the nail magazine turning control mechanism of the present invention is:

the knob 6 is rotated, and the knob 6 rotates together with the rotary shaft 4 and the dial 51. The steering cam on the rotating shaft 4 drives the steering bracket 2 to move back and forth, and the moving direction is determined according to the rotating direction of the knob 6. The steering support 2 moves together with the steering link 7 in the same direction. After the magazine is loaded into the stapler, the steering link 7 forms a loose-lock connection with the turning lever on the magazine, so that the movement of the steering link 7 drives the turning lever of the magazine. When the steering connecting rod 7 moves towards the left direction, the steering connecting rod 7 pushes the turning control rod of the nail box to turn left by a certain angle, otherwise, the turning control rod turns right by a certain angle, and therefore the nail box is turned. The function of the rotary disc 51 and the ball assembly is to position the angle of rotation to form a plurality of gears. When the knob 6 is turned, the rotary disc 51 carries the ball assembly to move together, and as the rotary disc rotates, the ball 58 moves towards the sleeve 56 and compresses the spring 57, and when the ball 58 rotates to the next round hole of the shift disc 14, the ball 58 is clamped into the round hole under the restoring force of the spring 57, so that the bending operation of an angle is completed. The turning range of the knob 6 can be set, and in the present embodiment, the knob 6 can be turned 90 degrees to the left at maximum and can be turned 90 degrees to the right at maximum.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A magazine turning control mechanism, comprising:

2. The magazine turning control mechanism according to claim 1, wherein said rotary shaft is connected to said turn bracket through a turn cam, said turn cam is not coincident with a rotation center of said rotary shaft, said turn bracket is provided with a strip-shaped hole engaged with said turn cam, a length direction of said strip-shaped hole is perpendicular to a forward and backward movement direction of said turn link.

3. The magazine turning control mechanism according to claim 1, further comprising a steering lock movably disposed in the lower housing, wherein the steering lock is provided with a control block, one end of the steering bracket away from the magazine is provided with a control notch, and the control block cooperates with the control notch to lock the orientation of the magazine.

4. The magazine turn control mechanism according to claim 1, wherein the shift position control assembly includes:

5. The magazine turn control mechanism according to claim 4, wherein the shift position control assembly further comprises a stopper located above the turn plate and connected to the shift plate by a fixing pin.

6. The magazine turning control mechanism according to claim 4, wherein the shift control assembly further comprises a turntable upper cover, a buckle for connecting with the upper cover is arranged below the turntable upper cover, a through hole is arranged in the middle of the turntable upper cover, and an arc-shaped hole arranged on an arc with the through hole as a center is arranged on the through hole.

7. The magazine turn control mechanism of claim 6, further comprising a guide rod, one end of the guide rod extending into the arcuate aperture, the other end of the guide rod being connected to the knob.

8. The magazine turn control mechanism of claim 4, wherein the ball assembly comprises: the bottom of the sleeve is limited in the stepped hole, and the ball is pressed downwards to a gear disc below the rotary disc by the spring.

9. The magazine turning control mechanism according to claim 1, wherein the shaft is provided with a groove extending in an axial direction, and the knob, the rotary plate, and the middle of the rotary plate upper cover are provided with a rib engaged with the groove.

10. An anastomat is characterized by comprising the nail box turning control mechanism according to any one item 1 to 9.