CN221266213U

CN221266213U - Disposable anastomat with automatic safety device

Info

Publication number: CN221266213U
Application number: CN202322525834.1U
Authority: CN
Inventors: 王伟; 王海龙; 顾柯佳; 王海东
Original assignee: Changzhou Wake Medical Devices Co ltd
Current assignee: Changzhou Wake Medical Devices Co ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-07-05
Anticipated expiration: 2033-09-15

Abstract

The utility model provides a disposable anastomat with an automatic safety device, which comprises a shell, wherein a screw rod is arranged in the shell, and an anastomosis gap is adjusted through axial movement of the screw rod; the screw rod is fixedly provided with a pointer drag hook which is provided with a wide surface and a narrow surface which are connected with each other, and the width of the wide surface is larger than that of the narrow surface; the shell is also provided with a hinged movable handle, the movable handle is provided with a claw corresponding to the pointer drag hook, and the claw is driven by the adjusting bolt to realize linear movement, so that the position of the claw corresponding to the pointer drag hook can be adjusted. When assembly errors or machining errors occur, the movable handle can be accurately locked or unlocked only by screwing the adjusting bolt and adjusting the relative position of the claw and the pointer drag hook, and misoperation can not occur, so that normal operation of an operation is ensured.

Description

Disposable anastomat with automatic safety device

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a disposable anastomat with an automatic safety device.

Background

Chinese patent CN200710107833 discloses a disposable anastomat with an automatic safety device, comprising a safety handle, a supporting leg connected with the handle into a whole is arranged at the lower side of the handle, and a notch is arranged at the lower end of the supporting leg. When the two sides are not matched, the supporting leg is always propped against one wide surface of the pointer drag hook (the width of the surface is larger than that of the notch), so that the safety handle is difficult to rotate, and the safety function is achieved; and in the anastomotic operation state, the regulating block on the screw rod drives the pointer drag hook to move backwards, the supporting leg is separated from the wide side of the pointer drag hook, and the notch is opposite to the narrow side of the pointer drag hook (the width of the side is smaller than that of the notch), so that the safety handle is automatically opened, and when the safety handle rotates, the narrow side of the pointer drag hook can be inserted into the notch.

Because the position of landing leg is fixed, therefore assembly precision and machining precision of part are higher in the above-mentioned structure, if appear the tolerance partially big, can take place following two kinds of situations: 1. when the anastomosis gap is not adjusted in place, the wide plane of the pointer drag hook is separated from the supporting leg, the automatic safety function is released, and the handle can be pressed down to cause the false firing of the anastomat; 2. when the anastomosis gap is adjusted to an anastomotic state, the wide plane of the pointer drag hook also props against the supporting leg on the automatic safety handle, so that the handle cannot be pressed down, and the anastomotic nail cannot be knocked out.

Disclosure of utility model

In order to solve the technical problems in the background technology, the utility model discloses a disposable anastomat with an automatic safety device.

The utility model provides a disposable anastomat with an automatic safety device, which comprises a shell, wherein a screw rod is arranged in the shell, and an anastomosis gap is adjusted through axial movement of the screw rod; the screw rod is fixedly provided with a pointer drag hook which is provided with a wide surface and a narrow surface which are connected with each other, and the width of the wide surface is larger than that of the narrow surface; the shell is also provided with a hinged movable handle, the movable handle is provided with a claw corresponding to the pointer drag hook, and the claw is driven by the adjusting bolt to realize linear movement, so that the position of the claw corresponding to the pointer drag hook can be adjusted.

The pointer drag hook moves axially along with the screw rod; when the clamping jaw faces the wide surface, the movable handle is locked and is difficult to rotate; when the clamping claw is opposite to the narrow surface, the movable handle is unlocked and can rotate; when assembly errors or machining errors occur, the movable handle can be accurately locked or unlocked only by screwing the adjusting bolt and adjusting the relative position of the claw and the pointer drag hook, and misoperation can not occur, so that normal operation of an operation is ensured.

The jaw can move linearly and has the following specific structure: the adjusting bolt is arranged on the movable handle and can realize free rotation, and axial movement can not occur when the adjusting bolt rotates; one end of the claw is fixed with a transmission nut which is in threaded connection with the adjusting bolt.

The concrete mounting structure of adjusting bolt is: the tail end of the movable handle is provided with two fixing rings which are arranged in parallel; the adjusting bolt is fixedly provided with a limit ring; the adjusting bolt is inserted into the fixed ring; the limit ring is arranged between the fixing rings.

Because the position of jack catch is not fixed, take place the deflection easily, lead to removing unsmoothly, based on this, further improvement lies in: the inner side of the movable handle is provided with a U-shaped groove; one end of the claw is inserted into the U-shaped groove. The U-shaped groove is used for clamping jaw installation limiting, movement guiding is achieved, and movement of the U-shaped groove is stable.

Because adjusting bolt produces the rotation easily under the condition of transportation vibration to change the position of jack catch, make safeties inefficacy, based on this, further design is: one end of the claw is provided with a threaded hole, and the positioning bolt penetrates through the movable handle and is in threaded connection with the threaded hole. After the clamping jaw is adjusted, the positioning bolt is locked, so that the position of the clamping jaw is kept stable.

When installing positioning bolt, because the position of screw hole can change for positioning bolt is difficult to accurately insert the screw hole, based on this, further improvement lies in: a strip hole is formed in the length direction of the movable handle; the positioning bolt is inserted into the strip hole.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of another view of the present utility model, with parts hidden;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of a third view of the present utility model, with parts hidden;

In the figure: 1. a housing; 2. a movable handle; 3. a claw; 4. an adjusting bolt; 5. a U-shaped groove; 6. a drive nut; 7. a fixing ring; 8. a limit ring; 9. a slit hole; 10. positioning bolts; 12. a screw rod; 13. pointer drag hook; 14. broad surface; 15. narrow faces.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

Embodiment one:

as shown in fig. 1 and 2, the present utility model is a disposable anastomat with an automatic safety device, comprising a housing 1, wherein a screw rod 12 is installed in the housing 1, and an anastomosis gap is adjusted by axial movement of the screw rod.

A pointer drag hook 13 is fixedly arranged on the screw rod 12 and moves along with the axial direction of the screw rod 12. The pointer drag hook 13 is provided with a wide surface 14 and a narrow surface 15 which are connected with each other, the width of the wide surface 14 is larger than that of the narrow surface 15, and the wide surface 14 is positioned at the tail end of the shell 1.

The shell 1 is also provided with a hinged movable handle 2, and the movable handle 2 is provided with a movable claw 3. The claw 3 is formed of two parts constituting an obtuse angle, and is provided as a mounting portion and a locking portion, respectively. The installation part is connected with the movable handle 2, the upper end of the locking part is provided with a U-shaped groove 5, and the U-shaped groove is opposite to the pointer drag hook 13. The pointer drag hook 13 is driven to move by the movement of the screw rod 12; when the wide surface 14 is opposite to the U-shaped groove 5, the width of the wide surface 14 is larger than that of the U-shaped groove 5, so that the claw 3 is blocked by the wide surface 14, and the movable handle 2 is difficult to rotate; when the narrow surface 15 is opposite to the U-shaped groove 5, the width of the narrow surface 15 is smaller than that of the U-shaped groove 5, so that the claw 3 can rotate, and when the claw rotates, the narrow surface 15 is inserted into the U-shaped groove 5.

As shown in fig. 3, the end position of the mounting portion is mounted with a drive nut 6 by welding. Two fixing rings 7 which are arranged in parallel are arranged at the position of the movable handle 2 close to the end part, and the adjusting bolt 4 passes through the fixing rings 7 and is in threaded connection with the transmission nut 6. Still be fixed with spacing collar 8 on the adjusting bolt 4, fix through welded mode, spacing collar 8 sets up between two retainer plates 7 to when making to twist and revolve adjusting bolt 4, adjusting bolt 4 only can rotate, and can not axial displacement, realize jack catch 3 rectilinear movement, the relative position of regulation locking part and pointer drag hook 13.

When the anastomat is assembled, if assembly errors or machining errors occur, the locking or unlocking of the movable handle 2 can be accurately realized only by screwing the adjusting bolt 4 and adjusting the relative position of the locking part and the pointer drag hook 13, and misoperation phenomenon can not occur, so that normal operation of an operation is ensured.

Embodiment two:

the difference from the first embodiment is that: the inner side of the movable handle 2 is provided with a U-shaped groove 5; one end of the claw 3 is inserted into the U-shaped groove 5. The U-shaped groove 5 is used for limiting the installation of the clamping jaw 3, so that the moving guide is realized, and the moving of the clamping jaw is more stable.

Embodiment III:

compared with the embodiment, the difference is that: the installation department is provided with the screw hole, and positioning bolt 10 passes movable handle 2, with screw hole threaded connection. After the jack catch 3 is adjusted, the positioning bolt 10 is locked, so that the position of the jack catch 3 is kept stable, the rotation of the adjusting bolt 4 caused by vibration in the transportation process is avoided, the position of the jack catch 3 is changed, and the effectiveness of the safety device is affected.

Embodiment four:

Compared with the three phases of the embodiment, the difference is that: as shown in fig. 4, a long hole 9, which can be a rectangular hole or a long round hole, is formed in the length direction of the movable handle 2; the positioning bolt 10 is inserted into the strip hole 9. Since the position of the screw hole is changed when the claw 3 is adjusted, the positioning bolt 10 is difficult to be accurately connected with the screw hole, and thus the arrangement of the elongated hole 9 provides a sufficient installation space for the positioning bolt 10, so that the positioning bolt 10 can be accurately connected with the screw hole.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. A disposable anastomat with an automatic safety device, which comprises a shell (1), wherein a screw rod (12) is arranged in the shell (1), and an anastomosis gap is adjusted through axial movement of the screw rod; the screw rod (12) is fixedly provided with a pointer drag hook (13), the pointer drag hook (13) is provided with a wide surface (14) and a narrow surface (15) which are connected with each other, and the width of the wide surface (14) is larger than that of the narrow surface (15); still install articulated movable handle (2) on casing (1), be provided with jaw (3) that correspond pointer drag hook (13) on movable handle (2), its characterized in that:

The clamping jaw (3) is driven by the adjusting bolt (4) to realize linear movement, so that the position of the clamping jaw corresponding to the pointer drag hook (13) can be adjusted.

2. The disposable stapler with automatic safety device according to claim 1, wherein: the adjusting bolt (4) is arranged on the movable handle (2) and can realize free rotation, and axial movement can not occur when the adjusting bolt rotates;

one end of the claw (3) is fixed with a transmission nut (6) which is in threaded connection with the adjusting bolt (4).

3. The disposable stapler with automatic safety device according to claim 2, wherein: the tail end of the movable handle (2) is provided with two fixing rings (7) which are arranged in parallel;

The adjusting bolt (4) is fixedly provided with a limit ring (8);

The adjusting bolt (4) is inserted into the fixed ring (7);

The limit rings (8) are arranged between the fixing rings (7).

4. The disposable stapler with automatic safety device according to claim 3, wherein: a U-shaped groove (5) is formed in the inner side of the movable handle (2);

one end of the claw (3) is inserted into the U-shaped groove (5).

5. The disposable stapler with automatic safety device according to claim 4, wherein: one end of each claw (3) is provided with a threaded hole, and a positioning bolt (10) penetrates through the movable handle (2) to be in threaded connection with the threaded hole.

6. The disposable stapler with automatic safety device according to claim 5, wherein: a strip hole (9) is formed in the length direction of the movable handle (2); the positioning bolt (10) is inserted into the strip hole (9).