CN2383477Y

CN2383477Y - Safety automatic opener

Info

Publication number: CN2383477Y
Application number: CN 99229088
Authority: CN
Inventors: 冯佩泉; 马剑文; 赵雪春; 尤怀德; 左文华
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-04
Filing date: 1999-08-04
Publication date: 2000-06-21
Anticipated expiration: 2009-08-04

Abstract

The utility model discloses a safety automatic opener which is particularly suitable for medical operation inosculation apparatuses. The utility model is provided with a handle, a regulating nut, a screw rod, a movable handle, a safety block, a return spring of the safety block, a spring seat and a positioning ring. One mobile sleeve or one mobile sleeve component is sheathed on the screw rod, and is positioned at the back part of the positioning ring. The mobile sleeve is fixedly provided with a drawing buckle. The regulating nut is sheathed with a compression spring, and the front end of the compression spring is bunted on the mobile sleeve. The lower part of one locking clamp is hinged on the positioning ring. The upper part of the locking clamp travels through the drawing buckle, and is bunted on the lower end of the safety block in a locking state. The utility model can automatically open the safety block when the utility model finishes regulating the inosculation clearance, and is convenient and reliable.

Description

Insure automatic breakdown device

This utility model belongs to technical field of medical instruments, is specifically related to cast surgical operation anastomat.

Existing tubular surgical operation anastomat, 98227541.2 and 98227835.7 Chinese patents as the applicant's application, it is hinged with safety block on flexible handle, operation Shi doctor will regulate the identical gap of anastomat front end usually earlier, the reuse hands is pushed safety block aside, press flexible handle, it is identical to undergo surgery.The doctor may just earlier push safety block aside with hands when coincideing the gap not regulating, and presses flexible handle, causes mistake to beat, causes anastomosis operation to be failed but sometimes.

The purpose of this utility model is to provide a kind of automatic breakdown device of insurance that is applicable to the surgical operation anastomat, and it can regulate automatic breakdown safety block when coincideing the gap, the safety block of then not opening when not mixing up in identical gap.

In order to achieve the above object, the technical solution of the utility model is: the automatic breakdown device of a kind of insurance, be specially adapted to operation anastomat, has handle, adjusting nut, screw mandrel, flexible handle, safety block and back-moving spring thereof, adjusting nut is connected with wire rod thread, flexible handle is hinged on handle, the shift fork of flexible handle lower end passes the fenestra on the handle and rides on the cannelure that is embedded in spring base, spring base and centring ring thereof are sleeved on the screw mandrel front portion, and centring ring is fixed on the inwall of handle, one moves cover or mobile grip assembly is sleeved on the screw mandrel and is positioned at the rear portion of centring ring, moves to put to be fixed with and draws button; The front end that is set with compression spring and this compression spring on the adjusting nut is resisted against to move and puts; One locking folder bottom is hinged on centring ring, and when locking state, locking folder top is passed and drawn button and lean with the lower end of safety block.

After adopting said structure, owing to have the cover of moving or mobile grip assembly to be sleeved on the screw mandrel, when the rotation adjusting nut coincide the gap to regulate, screw mandrel moves to drive to move to overlap backward and moves, mobile cover drives to draw to buckle again and moves, the top tension cingulum of this moment locking folder is moving and hinged point on centring ring rotates, when turning to certain position, also be anastomat when reaching required identical gap, the lower end of safety block and locking folder top just break away from against, safety block is breakdown under action of reset spring, at this moment can hear strike note, the doctor knows that promptly can press flexible handle has carried out anastomosis operation, so this utility model can regulate automatic breakdown safety block when coincideing the gap, when not being transferred in identical gap, because locking folder top also abuts against the lower end of safety block, and safety block can't be moved, and also just can't press flexible handle always, so can never cause mistake beats, guaranteed to perform the operation successfully, simultaneously, when operation, also need not the reuse hands and remove to dial safety block, convenient reliable again.

Below in conjunction with drawings and Examples this utility model is described in further detail.

Fig. 1 is the structural representation of first embodiment of the automatic breakdown device of insurance of the present utility model;

Fig. 2 is the structural representation of second embodiment of this utility model;

Fig. 3 is that the locking folder is installed in the structural representation on the centring ring;

Fig. 4 is that cutaway view is looked on the left side of Fig. 3;

Fig. 5 is the sketch map of locking folder;

Fig. 6 is the sketch map that draws button;

Fig. 7 is the partial structurtes sketch map of the 3rd embodiment of this utility model.

As shown in Figure 1, the automatic breakdown device of insurance of the present utility model, be specially adapted to operation anastomat, has handle (12), adjusting nut (11), screw mandrel (9), flexible handle (3), safety block (4) and back-moving spring (2) thereof, adjusting nut (11) is threaded with screw mandrel (9), flexible handle (3) is hinged on handle (12), shift fork (18) sky of flexible handle (3) lower end is crossed the fenestra (1) on the handle (12) and is ridden on the cannelure (17) that is embedded in spring base (16), spring base (16) and centring ring (15) thereof are sleeved on the front portion of screw mandrel (9), and centring ring (15) is fixed on the inwall of handle (12).One moves cover (7) is sleeved on the rear portion that centring ring (15) were gone up and be positioned to screw mandrel (9), moves to be fixed with on the cover (7) and draws button (6); The front end that is set with compression spring (8) and this compression spring (8) on the adjusting nut (11) is resisted against and moves on the cover (7), the rear end is resisted against adjusting nut (11) and goes up or locate on the collar (10), and the front end that moves cover (7) is resisted against on the step (13) of screw mandrel (9); One locking folder (14) bottom is hinged on centring ring (15), and when locking state, locking folder (14) top is passed and drawn button (6) and lean with the lower end of safety block (4).The front portion of spring base (16) is threaded with hollow pipe (20), is set with stage clip (19) on the hollow pipe (20), and the interior nodal axisn of hollow pipe (20) (21) is connected with screw mandrel (9) front end.Location collar (10) is that the collar obvolvent of two semi-annular shapes forms, annular convex rib on its inwall is stuck in the cannelure of adjusting nut (11), location collar (10) is fixed on handle (12) inwall by locknut (28), and makes adjusting nut (11) can only circumferentially rotate and can not move axially.Also can not set a collar (10) and locknut (28), and only snap in the cannelure of adjusting nut (11), also can play same effect by the dog screw that radially is arranged on the handle (12).

Shown in Fig. 1,3,4,5,6, drawing button (6) is a strip buckle, has strip button hole (5) on the buckle, centring ring (15) top has axial notch (22), draw button (6) front portion to be slidingly matched with this groove (22), the middle part of centring ring (15) has two radial holes (23), and locking folder (14) is an alligator clamp, and two footing (24) of this alligator clamp insert respectively in two radial holes (23), and alligator clamp top is passed in the strip button hole (5) that draws button (6).

As shown in Figure 2, among second embodiment of the present utility model, mobile grip assembly is sleeved on the screw mandrel (9), this mobile grip assembly comprises mobile cover (7), Adjusting bolt Adjusting screw (27) and outer double-screw bolt (25), outer double-screw bolt (25) is slidingly connected with screw mandrel (9), its front end is resisted against on the step (13) of screw mandrel (9), outer double-screw bolt (25) is threaded with Adjusting bolt Adjusting screw (27), moving cover (7) is fixed on the Adjusting bolt Adjusting screw (27) with holding screw (26), rotate Adjusting bolt Adjusting screw (27) can regulate easily locking folder (14) and safety block (4) break away from against the time the coincide size in gap, all the other structures are just identical with above-mentioned first enforcement.

As shown in Figure 7, among the 3rd embodiment of the present utility model, mobile grip assembly is sleeved on the screw mandrel (9), this mobile grip assembly comprises mobile cover (7) and interior cover (29), interior cover (29) directly slip cap is contained on the screw mandrel (9), moves cover (7) and is fixed on the interior cover (29) with holding screw (26).All the other structures are identical with first embodiment.

This utility model in use, be rotated counterclockwise adjusting nut (11) earlier, screw mandrel (9) advances left, moving cover (7) or mobile grip assembly is moved to the left under compression spring (8) effect, up to running into centring ring (15), if screw mandrel (9) is left lateral again, moving cover (7) or mobile grip assembly does not readvance because of stopped by centring ring (15), at this moment, be fixed on to move and draw button (6) will lock folder (14) to shift the erection position onto on the cover (7), locking folder (14) blocks safety block (4) lower end, safety block (4) can't be turned left under its back-moving spring (2) effect reset, and safety block (4) is locking state; When the adjusting nut that turns clockwise again (11), screw mandrel (9) moves right, step (13) mobile cover of drive (7) on the screw mandrel (9) or mobile grip assembly are to right lateral, draw button (6) right lateral thereby drive, be through locking folder (14) tension button (6) pulling of drawing in button (6) button hole (5) and hinged point on centring ring (15) also is that radial hole (23) turns right, the height on the top of locking folder (14) reduces gradually, press from both sides (14) when top disengages when safety block (4) lower end with locking, safety block (4) is not stopped, under the effect of back-moving spring (2), turn left, can hear the sound of safety block (4) collision activity handle (3) this moment, this just tells the doctor, the identical gap of anastomat is adjusted good, and safety block (4) is breakdown automatically, can carry out anastomosis operation.

Claims

1, the automatic breakdown device of a kind of insurance, be specially adapted to operation anastomat, has handle (12), adjusting nut (11), screw mandrel (9), flexible handle (3), safety block (4) and back-moving spring (2) thereof, adjusting nut (11) is threaded with screw mandrel (9), flexible handle (3) is hinged on handle (12), the shift fork (18) of flexible handle (3) lower end passes the fenestra (1) on the handle (12) and rides on the cannelure (17) that is embedded in spring base (16), spring base (16) and centring ring (15) thereof are sleeved on screw mandrel (9) front portion, and centring ring (15) is fixed on the inwall of handle (12), it is characterized in that:

A, one moves cover (7) or mobile grip assembly is sleeved on the rear portion that centring ring (15) were gone up and be positioned to screw mandrel (9), moves to be fixed with on the cover (7) and draws button (6);

The front end that is set with compression spring (8) and this compression spring (8) on b, the adjusting nut (11) is resisted against and moves on the cover (7);

C, locking folder (a 14) bottom are hinged on centring ring (15), and when locking state, locking folder (14) top is passed and drawn button (6) and lean with the lower end of safety block (4).

2, the automatic breakdown device of insurance according to claim 1, it is characterized in that: drawing button (6) is a strip buckle, has strip button hole (5) on the buckle, centring ring (15) top has axial notch (22), the middle part has two radial holes (23), locking folder (14) is an alligator clamp, and two footing (24) of this alligator clamp insert respectively in two radial holes (23), and the top of alligator clamp can be passed in the strip button hole (5) that draws button (6).

3, the automatic breakdown device of insurance according to claim 1 and 2, it is characterized in that: mobile grip assembly comprises mobile cover (7), Adjusting bolt Adjusting screw (27) and outer double-screw bolt (25), outer double-screw bolt (25) is slidingly connected with screw mandrel (9), outer double-screw bolt (25) is threaded with Adjusting bolt Adjusting screw (27), moves cover (7) and is fixed on the Adjusting bolt Adjusting screw (27) with holding screw (26).