CN215129362U

CN215129362U - Jaw direction adjusting mechanism of cutting anastomat

Info

Publication number: CN215129362U
Application number: CN202022301344.XU
Authority: CN
Inventors: 岳计强; 朱晓波; 张少龙
Original assignee: Hangzhou Kangji Medical Instrument Co Ltd
Current assignee: Hangzhou Kangji Medical Instrument Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-12-14
Anticipated expiration: 2030-10-15

Abstract

The utility model provides a direction adjustment mechanism of keeping silent of cutting anastomat. It has solved current technical problem. This cutting anastomat's direction adjustment mechanism of keeping silent, including the rotating head, the rotating head on rotate and be connected with rotatory knob, rotatory knob link to each other with the subassembly that turns to that sets up in the rotating head, the subassembly that turns to include the rotation axis, with rotation axis circumference relatively fixed's rotary disk, with the location chuck of rotation axis circumference relative activity, rotary disk and location chuck be about setting up and establish on the rotation axis, just rotary disk and location chuck between be equipped with embedded rotational positioning structure. The utility model has the advantages of the rotation of the rotary knob is smooth, and the control is convenient.

Description

Jaw direction adjusting mechanism of cutting anastomat

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a direction adjustment mechanism of keeping silent of cutting anastomat.

Background

A linear stapler generally comprises an instrument platform mounted on the head of the platform, which can be passed through a small incision in the body by means of a puncture instrument to access the surgical site for performing the operation. Specifically, the instrument platform comprises a firing handle, the head comprises a nail box shell and a nail head part arranged on the far end side of the nail box shell, a firing assembly is arranged inside the nail box shell, and the nail head part is a part for implementing cutting and suturing actions. Under the drive of the firing handle, the firing assembly can drive the nail head to complete the suture and incision operation.

In order to realize the swinging of the nail head relative to the nail box shell, a swinging pull rod is arranged in the nail box shell, the near end side of the swinging pull rod is connected to a swinging driving piece, the far end side of the swinging pull rod is rotatably fixed on the near end side of the nail head, and when the swinging driving piece drives the swinging pull rod to move along the axial direction of the nail box shell, the far end side of the swinging pull rod drives the nail head to swing clockwise or anticlockwise relative to the nail box shell.

The head anticlockwise or clockwise swing is controlled through the rotary knob and the steering connecting rod that sets up in the rotating head to most of current anastomat, however the location of the rotatory knob of current anastomat after steering is realized turning to the location after the connecting rod is flexible through rack formula or the mode of card body circumference outer wall embedding rotating head lateral wall draw-in groove most for the rotation operation of rotary knob is not smooth, and not only hard and rotate back head location unstable.

In order to solve this problem, research and study have been conducted in long-term production and living practices, for example, chinese patent invention discloses a osculating assembly steering device of an electric endoscopic stapler [ application No.: 202010044095.2, the invention comprises a steering joint, a steering plectrum, a connector, a steering pin block, a steering joint fixing block, a steering pin block spring, a steering drag hook, a swinging handle, a swinging gear, a rotating handle and a swinging transmission rack. The osculating component is connected with the osculating component mounting hole of the steering joint through a pin, the front end of the connecting rod is connected with the connecting head through the connecting rod mounting groove of the connecting head, the two steering drag hooks are respectively clamped at the two sides of the connecting rod and connected with the two oscillating drive racks, a fixed sleeve is sleeved outside the steering drag hooks, and the upper half and the lower half of the rotating handle are sleeved at the two sides of the fixed sleeve.

The solution described above improves to some extent some of the problems of the prior art, but it also has at least the following drawbacks: the rotation of the rotary knob is not smooth enough and is laborious.

Disclosure of Invention

The utility model aims at the above problem, a rotatory smooth cutting anastomat's of rotatory knob direction adjustment mechanism of keeping silent is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal: this cutting anastomat's direction adjustment mechanism of keeping silent, including the rotating head, the rotating head on rotate and be connected with rotatory knob, rotatory knob link to each other with the subassembly that turns to that sets up in the rotating head, the subassembly that turns to include the rotation axis, with rotation axis circumference relatively fixed's rotary disk, with the location chuck of rotation axis circumference relative activity, rotary disk and location chuck be about setting up and establish on the rotation axis, just rotary disk and location chuck between be equipped with embedded rotational positioning structure.

In the jaw direction adjusting mechanism of the cutting anastomat, the embedded rotary positioning structure comprises a plurality of positioning holes formed in a positioning chuck, the positioning holes are circumferentially arranged on the positioning chuck at intervals, a plurality of ball bodies circumferentially arranged at intervals penetrate through a rotating disc, and positioning bodies capable of being embedded with the positioning holes are arranged on the bottom sides of the ball bodies.

In the jaw direction adjusting mechanism of the cutting anastomat, an elastic jacking component capable of enabling the rotating disc to have a trend of moving towards the positioning chuck is further arranged between the positioning chuck and the rotating disc.

In the jaw direction adjusting mechanism of the cutting anastomat, the elastic jacking component comprises a spring body sleeved on the rotating shaft, the bottom side of the spring body abuts against the upper end face of the rotating disc, and the top side of the spring body abuts against the bottom side of a turntable upper cover penetrating through the rotating shaft and located above the rotating disc.

In foretell cutting anastomat's direction adjustment mechanism of keeping silent, the rotating head include casing, lower casing, last casing on be equipped with rotatory notch, the subassembly that turns to set up in rotatory notch, the circumference inner wall of rotatory notch be equipped with a plurality of circumference interval arrangement's arc and support the backup plate, adjacent arc supports and form the constant head tank by the interplate interval, the circumference outside of location chuck be equipped with a plurality of can inlay the location convex part of establishing mutually with the constant head tank, carousel upper cover bottom extend have and be equipped with a plurality of can inlay the location sand grip of establishing mutually with the constant head tank, and when carousel upper cover, location chuck install the back in rotatory notch location convex part be located the below of location sand grip.

In the jaw direction adjusting mechanism of the cutting anastomat, the outer edge of the ball body is abutted against the arc-shaped abutting plate, and the ball body is rotatably embedded on the rotating disc.

In the jaw direction adjusting mechanism of the cutting anastomat, the rotating shaft is provided with at least one strip-shaped groove extending along the axial direction of the rotating shaft, the middle part of the rotating disk is provided with a strip-shaped positioning convex part capable of being embedded with the strip-shaped groove, and the rotating disk and the rotating shaft are circumferentially fixed relatively through the strip-shaped groove and the strip-shaped positioning convex part.

In the jaw direction adjusting mechanism of the cutting anastomat, the upper part of the rotating shaft extends into the rotating knob, the rotating knob is further provided with a pin hole in the radial direction, the rotating knob is provided with a jack corresponding to the pin hole, and a pin penetrates through the pin hole and the jack.

In the jaw direction adjusting mechanism of the cutting anastomat, the bottom side of the rotating shaft is connected with a control seat which is circumferentially fixed relative to the rotating shaft, a steering lock is arranged in the rotating head, a steering support which can axially move relative to the steering lock is arranged on the steering lock, a transverse moving plane is arranged on the steering lock, the steering support is abutted against the transverse moving plane and can axially move relative to the transverse moving plane, a shaft hole deviating from the axis of the rotating shaft is formed in the control seat, a strip-shaped traction hole is formed in the steering support, a traction shaft penetrates through the shaft hole and the traction hole, and when the rotating shaft drives the control seat to synchronously rotate circumferentially, the traction shaft is arranged in the traction hole along the long axis direction of the traction hole and transversely moves in the transverse moving plane.

In the jaw direction adjusting mechanism of the cutting anastomat, two sides of the long axis direction of the steering support are abutted against the inner wall of the lower shell, the rear end of the steering support is provided with a limiting groove, the transverse moving plane is provided with a limiting seat which can be clamped with the limiting groove, the steering support is clamped on the limiting seat through the limiting groove and can be relatively far away from or close to the limiting seat, and the front end of the steering support is further connected with a steering connecting rod.

Compared with the prior art, the jaw direction adjusting mechanism of the cutting anastomat has the advantages that: reasonable in design adopts the embedded rotational positioning structure between the rotary disk that sets up from top to bottom and the location chuck to realize that the circumference location makes the rotation of rotatory knob more smooth, the operation of being convenient for.

Drawings

Fig. 1 is an exploded view provided by the present invention;

fig. 2 is a schematic structural diagram of a rotating disk provided by the present invention;

FIG. 3 is an enlarged view of the point A provided by the present invention;

FIG. 4 is an assembly view provided by the present invention;

in the figure, a rotating head 1, a rotating knob 2, a steering assembly 3, a rotating shaft 4, a rotating disk 5, a positioning chuck 6, a positioning hole 7, a ball body 8, a positioning body 9, an elastic jacking assembly 10, a spring body 11, a turntable upper cover 12, an upper shell 13, a lower shell 14, a rotating notch 15, an arc-shaped abutting plate 16, a positioning groove 17, a positioning convex part 18, a positioning convex strip 19, a strip-shaped groove 20, a pin hole 21, an insertion hole 22, a pin 23, a control seat 24, a steering lock 25, a steering support 26, a transverse moving plane 27, a shaft hole 28, a pulling hole 29, a pulling shaft 30, a limiting groove 31, a limiting seat 32, a steering connecting rod 33 and a strip-shaped positioning convex part 34 are arranged.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-4, this jaw direction adjustment mechanism of cutting anastomat, including rotating head 1, it is connected with rotatory knob 2 to rotate on the rotating head 1, rotatory knob 2 links to each other with the subassembly 3 that turns to that sets up in rotating head 1, turn to subassembly 3 and include rotation axis 4, with rotation axis 4 circumference relatively fixed's rotary disk 5, with rotation axis 4 circumference relatively movable's location chuck 6, rotary disk 5 and location chuck 6 are setting up from top to bottom and overlap and establish on rotation axis 4, and be equipped with embedded rotatory location structure between rotary disk 5 and the location chuck 6.

Compare in traditional through 6 cards of location chuck establish at 1 inner wall card of rotating head and realize the circumference location, the utility model discloses an embedded rotational positioning structure between rotary disk 5 that sets up from top to bottom and location chuck 6 realizes that the circumference location makes the rotation of rotatory knob 2 more smooth, the operation of being convenient for.

Preferably, the embedded rotary positioning structure comprises a plurality of positioning holes 7 formed in a positioning chuck 6, the positioning holes 7 are circumferentially arranged on the positioning chuck 6 at intervals, a plurality of ball bodies 8 circumferentially arranged at intervals penetrate through the rotating disk 5, and positioning bodies 9 capable of being embedded in the positioning holes 7 are arranged at the bottom sides of the ball bodies 8. The positioning body 9 can be clamped in the positioning hole 7 different from the circumferential direction during the rotation process to realize the positioning after the rotation, and preferably, the positioning body 9 is an elastic piece, so that the rotation and the embedding of the positioning body 9 after the rotation are convenient.

Furthermore, an elastic pressing assembly 10 capable of enabling the rotating disc 5 to have a moving trend towards the positioning chuck 6 is arranged between the positioning chuck 6 and the rotating disc 5; the elastic pressing component 10 comprises a spring body 11 sleeved on the rotating shaft 4, the bottom side of the spring body 11 abuts against the upper end face of the rotating disk 5, and the top side of the spring body 11 abuts against the bottom side of a turntable upper cover 12 penetrating through the rotating shaft 4 and located above the rotating disk 5.

The elastic force of the spring body 11 enables the rotating disc 5 to have a tendency of moving towards the positioning chuck 6, so that the positioning body 9 and the positioning hole 7 are connected more stably when being embedded, and the positioning body 9 is prevented from being separated from the positioning hole 7 to cause the jaw to rotate.

Rotating head 1 includes casing 13, lower casing 14, be equipped with rotatory notch 15 on going up casing 13, it sets up in rotatory notch 15 to turn to subassembly 3, the circumference inner wall of rotatory notch 15 is equipped with the arc of a plurality of circumference interval arrangements and supports backup plate 16, adjacent arc supports 16 intervals of backup plate and forms constant head tank 17, the circumference outside of location chuck 6 is equipped with a plurality of location convex parts 18 that can inlay the establishment mutually with constant head tank 17, the extension of 12 bottom sides of carousel upper cover has a plurality of location sand grip 19 that can inlay the establishment mutually with constant head tank 17, and work as carousel upper cover 12, location chuck 6 is installed back location convex part 18 and is located the below of location sand grip 19 in rotatory notch 15. The positioning chuck 6 and the rotary table upper cover 12 are circumferentially positioned with the rotary groove opening 15 through the positioning groove 17 and the positioning convex part 18 respectively, the rotation of the synchronous positioning chuck 6 and the rotary table upper cover 12 during rotation of the rotary knob 2 can be effectively avoided, and the positioning body 9 can be effectively embedded into the positioning hole 7 after the rotary table 5 rotates.

The outer edge of the ball body 8 abuts against the arc abutting plate 16, the ball body 8 is rotatably embedded on the rotating disk 5, the outer edge of the ball body 8 abuts against the arc abutting plate 16 to improve the rotating fluency of the rotating disk 5, and when the rotating disk 5 rotates, the ball body 8 is attached to the arc abutting plate 16 to rotate synchronously.

Furthermore, at least one strip-shaped groove 20 extending along the axial direction of the rotating shaft 4 is formed in the rotating shaft 4, a strip-shaped positioning convex part 34 capable of being embedded in the strip-shaped groove 20 is arranged in the middle of the rotating disc 5, the rotating disc 5 and the rotating shaft 4 are fixed in the circumferential direction through the strip-shaped groove 20 and the strip-shaped positioning convex part 34, the rotating shaft 4 and the rotating disc 5 are connected in an inserting mode, the strip-shaped positioning convex part 34 on the rotating disc 5 is embedded in the strip-shaped groove 20 after the inserting mode so as to achieve circumferential locking of the rotating disc 5 and the rotating shaft 4, and when the rotating shaft 4 rotates, the rotating disc 5 synchronously rotates. The upper portion of the rotating shaft 4 extends into the rotating knob 2 and is further provided with a pin hole 21 in the radial direction, the rotating knob 2 is provided with a jack 22 corresponding to the pin hole 21, a pin 23 penetrates through the pin hole 21 and the jack 22, and the pin 23 is used for circumferential positioning of the rotating shaft 4 and the rotating knob 2.

In addition, the bottom side of the rotating shaft 4 is connected with a control seat 24 which is circumferentially fixed relative to the rotating shaft 4, a steering lock 25 is arranged in the rotating head 1, a steering support 26 which can axially move relative to the steering lock 25 is arranged on the steering lock 25, a transverse moving plane 27 is arranged on the steering lock 25, the steering support 26 abuts against the transverse moving plane 27 and can axially move relative to the transverse moving plane 27, a shaft hole 28 which deviates from the shaft center of the rotating shaft 4 is arranged on the control seat 24, a strip-shaped drawing hole 29 is formed in the steering support 26, a drawing shaft 30 penetrates between the shaft hole 28 and the drawing hole 29, and when the rotating shaft 4 drives the control seat 24 to synchronously rotate circumferentially, the drawing shaft 30 transversely moves in the direction of the long shaft of the drawing hole 29 in the drawing hole 29 and axially moves in the transverse moving plane 27 at the moment.

The pulling shaft 30 is inserted between the shaft hole 28 and the pulling hole 29, and when the rotary disk 5 rotates, the pulling shaft 30 displaces the axis of the rotary shaft 4, so that the steering bracket 26 is pushed forward or backward in the radial direction by the pulling shaft 30, thereby realizing the axial displacement of the steering bracket 26, and when the jaw is not deflected, the pulling shaft 30 is positioned at the center of the pulling hole 29.

The two sides of the steering support 26 in the long axis direction abut against the inner wall of the lower shell 14, the rear end of the steering support 26 is provided with a limiting groove 31, the transverse moving plane 27 is provided with a limiting seat 32 which can be clamped with the limiting groove 31, the steering support 26 is clamped on the limiting seat 32 through the limiting groove 31 and can be relatively far away from or close to the limiting seat 32, and the front end of the steering support 26 is further connected with a steering connecting rod 33.

Both sides of the steering bracket 26 are abutted against the inner wall of the lower shell 14, and the limiting groove 31 is clamped on the limiting seat 32, so that the steering bracket 26 can be prevented from generating lateral deflection when moving axially, and the path of the steering bracket 26 pulling the steering connecting rod 33 is always in the axial direction of the steering connecting rod 33.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the rotating head 1, the rotating knob 2, the steering assembly 3, the rotating shaft 4, the rotating disc 5, the positioning chuck 6, the positioning hole 7, the ball body 8, the positioning body 9, the elastic pressing assembly 10, the spring body 11, the turntable upper cover 12, the upper housing 13, the lower housing 14, the rotating notch 15, the arc-shaped abutting plate 16, the positioning groove 17, the positioning protrusion 18, the positioning protrusion 19, the strip-shaped groove 20, the pin hole 21, the insertion hole 22, the pin 23, the manipulation seat 24, the steering lock 25, the steering bracket 26, the traverse plane 27, the shaft hole 28, the pulling hole 29, the pulling shaft 30, the limiting groove 31, the limiting seat 32, the steering link 33, and the strip-shaped positioning protrusion 34 are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A jaw direction adjusting mechanism of a cutting anastomat comprises a rotating head (1), wherein a rotating knob (2) is connected to the rotating head (1) in a rotating mode, and the jaw direction adjusting mechanism is characterized in that the rotating knob (2) is connected with a steering assembly (3) arranged in the rotating head (1) in a rotating mode, the steering assembly (3) comprises a rotating shaft (4), a rotating disc (5) and a positioning chuck (6), wherein the rotating disc (5) is circumferentially and relatively fixed with the rotating shaft (4), the positioning chuck (6) circumferentially and relatively moves with the rotating shaft (4), the rotating disc (5) and the positioning chuck (6) are vertically arranged and sleeved on the rotating shaft (4), and an embedded type rotating positioning structure is arranged between the rotating disc (5) and the positioning chuck (6);

the rotating head (1) comprises an upper shell (13) and a lower shell (14), a rotary notch (15) is arranged on the upper shell (13), the steering component (3) is arranged in the rotary notch (15), a plurality of arc-shaped abutting plates (16) which are circumferentially arranged at intervals are arranged on the circumferential inner wall of the rotary notch (15), positioning grooves (17) are formed at intervals between adjacent arc-shaped abutting plates (16), a plurality of positioning convex parts (18) which can be embedded with the positioning grooves (17) are arranged at the circumferential outer side of the positioning chuck (6), a plurality of positioning convex strips (19) which can be embedded with the positioning grooves (17) are arranged on the bottom side of the turntable upper cover (12) in an extending way, when the turntable upper cover (12) and the positioning chuck (6) are installed in the rotary notch (15), the positioning convex part (18) is positioned below the positioning convex strip (19);

the upper portion of the rotating shaft (4) stretches into the rotating knob (2) and is further provided with a pin hole (21) in the radial direction, the rotating knob (2) is provided with a jack (22) which is correspondingly arranged with the pin hole (21), and a pin (23) penetrates through the pin hole (21) and the jack (22).

2. The jaw direction adjusting mechanism of the cutting anastomat as claimed in claim 1, wherein the embedded rotary positioning structure comprises a plurality of positioning holes (7) formed in a positioning chuck (6), the positioning holes (7) are circumferentially arranged on the positioning chuck (6) at intervals, a plurality of circumferentially arranged ball bodies (8) are arranged on the rotating disk (5) in a penetrating manner, and positioning bodies (9) capable of being embedded with the positioning holes (7) are arranged on the bottom sides of the ball bodies (8).

3. The jaw direction adjusting mechanism of the cutting stapler as claimed in claim 2, wherein an elastic pressing assembly (10) capable of making the rotating disc (5) have a moving trend towards the positioning chuck (6) is further provided between the positioning chuck (6) and the rotating disc (5).

4. The jaw direction adjusting mechanism of the cutting anastomat as claimed in claim 3, wherein the elastic pressing component (10) comprises a spring body (11) sleeved on the rotating shaft (4), the bottom side of the spring body (11) abuts against the upper end face of the rotating disc (5), and the top side of the spring body (11) abuts against the bottom side of a turntable upper cover (12) penetrating through the rotating shaft (4) and located above the rotating disc (5).

5. The jaw direction adjusting mechanism of the cutting stapler as claimed in claim 2, wherein the outer edge of the ball body (8) abuts against the arc-shaped abutting plate (16), and the ball body (8) is rotatably embedded on the rotating disc (5).

6. The jaw direction adjusting mechanism of the cutting anastomat as claimed in claim 2, wherein the rotating shaft (4) is provided with at least one strip-shaped groove (20) extending along the axial direction of the rotating shaft (4), the middle part of the rotating disc (5) is provided with a strip-shaped positioning convex part (34) capable of being embedded with the strip-shaped groove (20), and the rotating disc (5) and the rotating shaft (4) are fixed circumferentially relative to each other through the strip-shaped groove (20) and the strip-shaped positioning convex part (34).

7. The jaw direction adjusting mechanism of the cutting anastomat as claimed in claim 1, wherein the bottom side of the rotating shaft (4) is connected with a control seat (24) fixed circumferentially relative to the rotating shaft (4), a steering lock (25) is arranged in the rotating head (1), a steering support (26) capable of moving axially relative to the steering lock (25) is arranged on the steering lock (25), a traverse plane (27) is arranged on the steering lock (25), the steering support (26) abuts against the traverse plane (27) and can move axially relative to the traverse plane (27), a shaft hole (28) deviating from the shaft center of the rotating shaft (4) is arranged on the control seat (24), a strip-shaped pulling hole (29) is arranged on the steering support (26), and a pulling shaft (30) penetrates between the shaft hole (28) and the pulling hole (29), and when the rotating shaft (4) drives the control seat (24) to synchronously and circumferentially rotate, the traction shaft (30) transversely moves in the traction hole (29) along the long axis direction of the traction hole (29), and the steering support axially transversely moves on the transverse moving plane (27).

8. The jaw direction adjusting mechanism of the cutting anastomat as claimed in claim 7, wherein two sides of the steering support (26) in the long axis direction abut against the inner wall of the lower shell (14), a limiting groove (31) is formed in the rear end of the steering support (26), a limiting seat (32) capable of being clamped with the limiting groove (31) is arranged on the transverse moving plane (27), the steering support (26) is clamped on the limiting seat (32) through the limiting groove (31) and can be relatively far away from or close to the limiting seat (32), and a steering connecting rod (33) is further connected to the front end of the steering support (26).