CN209789914U

CN209789914U - Safety mechanism for preventing component from being triggered when endoscope anastomat is not used

Info

Publication number: CN209789914U
Application number: CN201821929362.9U
Authority: CN
Inventors: 胥炜栋; 冯亚
Original assignee: Wuxi Beien Surgical Instrument Co Ltd
Current assignee: Wuxi Beien Surgical Instrument Co Ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2019-12-17
Anticipated expiration: 2028-11-22

Abstract

the utility model discloses a safety mechanism of subassembly percussion when chamber mirror anastomat prevents not using, turn to the piece including percussion safeties, percussion safety spring and the percussion insurance that sets up in the nail casket of chamber mirror anastomat, percussion safeties is crowded to lean on chamber mirror anastomat's link rod inner core, percussion safety spring fixed connection percussion safeties is used for resetting percussion safeties, the bottom that the percussion insurance turned to the piece is provided with first salient piece and second salient piece respectively, be provided with on the percussion safeties with first salient piece assorted recess, set up on chamber mirror anastomat's the cutting knife with second salient piece assorted notch. The utility model discloses a safety mechanism setting of rotation locking cutting knife, the mistake that the maloperation arouses appears when having prevented anastomat and the equipment of the rifle body and hit the hair, has eliminated the operation potential safety hazard, has promoted the result of use of chamber mirror anastomat, has improved the factor of safety of operation.

Description

Safety mechanism for preventing component from being triggered when endoscope anastomat is not used

Technical Field

the utility model relates to the technical field of medical equipment, concretely relates to safety mechanism of subassembly percussion when chamber mirror anastomat prevents not using.

Background

Current chamber mirror anastomat needs and the rifle body equipment back to fire before using, but at the in-process of equipment, because the cutting knife is in active condition, the mistake firing appears very easily, can lead to the closed firing of anastomat a short distance, specifically as figure 1 and figure 2 contrast can know, lead to having very big operation potential safety hazard in the in-process of operation like this.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the safety mechanism capable of preventing the endoscope anastomat from being fired by mistake and preventing the assembly from being fired when the endoscope anastomat is not used is provided.

the technical scheme is as follows: in order to realize the above object, the utility model provides a safety mechanism of subassembly percussion when chamber mirror anastomat prevents not using, turn to the piece including percussion safeties, percussion safety spring and the percussion insurance that sets up in the nail casket of chamber mirror anastomat, the crowded link rod inner core that leans on the chamber mirror anastomat of percussion safeties, percussion safety spring fixed connection percussion safeties and is used for resetting to percussion safeties, the percussion insurance turns to the piece and is the arc structure, the bottom that the percussion insurance turned to the piece is provided with first bulge piece and second bulge piece respectively, be provided with on the percussion safeties with first bulge piece assorted recess, seted up on the cutting knife of chamber mirror anastomat with second bulge piece assorted notch, second bulge piece and notch cooperate and be used for spacing the cutting knife.

Furthermore, the nail box is provided with a nail box inner core upper cover and a nail box inner core lower cover, and the triggering safety device, the triggering safety spring and the triggering safety steering block are all arranged on the nail box inner core upper cover.

further, an arc-shaped opening is formed in the upper surface of the nail box, and the triggering safety steering block is matched with the arc-shaped opening, so that the triggering safety steering block is exposed outside, and a worker can directly observe the specific state of the triggering safety steering block.

Further, first protruding piece is cylindrical structure, second protruding piece is square structure, and first protruding piece designs into cylindrical structure for first protruding piece can be more smooth and easy break away from the recess.

Further, the second protruding piece is located percussion insurance and turns to piece bottom limit end, makes percussion insurance turn to the piece like this and possesses certain rotation space, possesses certain space between first protruding piece and the second protruding piece and holds the cutting knife.

Has the advantages that: compared with the prior art, the utility model, through the safety mechanism setting of rotatory locking cutting knife, the mistake that the maloperation arouses appears when having prevented anastomat and rifle body equipment is hit and is sent out, has eliminated the operation potential safety hazard, has promoted the result of use of chamber mirror anastomat, has improved the factor of safety of operation.

Drawings

FIG. 1 is a schematic view of an endoscopic stapler in a normal state;

FIG. 2 is a schematic view of a endoscopic stapler in the event of a false trigger;

FIG. 3 is a partially exploded view of the stapler;

FIG. 4 is a schematic view of the percussion safety steering block and the cutter;

FIG. 5 is a cross-sectional view of the configuration of the endoscopic stapler when not assembled;

FIG. 6 is a side cross-sectional view of the endoscopic stapler when not assembled;

FIG. 7 is a sectional view of the stapler and the gun body in an assembled state;

FIG. 8 is a sectional view of the endoscope stapler in an assembled state;

FIG. 9 is a side cross-sectional view of the endoscopic stapler in an assembled state.

Detailed Description

the present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

as shown in fig. 1, the endoscopic stapler includes a stapler 100 and a gun body 101, when a surgical operation is being performed, a worker assembles the stapler 100 and the gun body 101 and then extends the stapler 100 into an inner cavity of a patient, but as shown in fig. 2, when an articulated link 102 is extended outward too long and is assembled without performing a gun cleaning action, a cutting knife 3 moves forward a short distance, resulting in a false firing, which is very likely to cause a surgical accident.

In order to solve the above problems, the present embodiment provides a safety mechanism for preventing component from being triggered when not in use of a laparoscopic stapler, as shown in fig. 3, 4 and 7, the safety mechanism includes a triggering safety device 6, a triggering safety spring 4 and a triggering safety steering block 5, a magazine portion of the stapler 100 includes a magazine housing 1, a magazine inner core lower cover 2, a cutting knife 3, a link inner core 8 and a magazine inner core upper cover 7, the triggering safety device 6 is pressed against the link inner core 8, the triggering safety spring 4 is fixedly connected to the triggering safety device 6 for resetting the triggering safety device 6, the triggering safety steering block 5 is an arc structure, the bottom of the triggering safety steering block 5 is respectively provided with a first protruding block 51 and a second protruding block 52, the triggering safety device 6 is provided with a groove matched with the first protruding block 51, the cutting knife 3 of the laparoscopic stapler is provided with a notch 31 matched with the second protruding block 52, the percussion safety device 6, the percussion safety spring 4 and the percussion safety steering block 5 are all arranged on the nail box inner core upper cover 7, an arc-shaped opening is formed in the upper surface of the nail box, the percussion safety steering block 5 is matched on the arc-shaped opening, the first protruding block 51 is of a cylindrical structure, and the second protruding block 52 is of a square structure.

As shown in fig. 5 and 6, when the stapler 100 and the gun body 101 are not assembled, the firing safety steering block 5 is in the initial position, and the first protruding block 51 and the second protruding block 52 thereof are respectively located in the groove of the firing safety device 6 and the notch 31 of the cutting knife 3, so that the cutting knife 3 is in a locked state, and it is ensured that the stapler 100 and the gun body 101 are not misfired during the assembling process.

As shown in fig. 8 and 9, when the stapler 100 and the gun body 101 are assembled and a normal firing operation needs to be performed, a worker performs an operation by using the gun body 101, the firing safety device 6 is squeezed by the link rod inner core 8 of the gun body 101 to retract, the firing safety steering block 5 gradually disengages from the groove of the firing safety device 6 during the retraction process of the firing safety device 6, the firing safety steering block 5 rotates along the outer side of the magazine inner core upper cover 7, so that the second protruding block 52 disengages from the notch 31 of the cutting knife 3, the cutting knife 3 is located between the first protruding block 51 and the second protruding block 52, the second protruding block 52 loses the limiting function for the cutting knife 3, and the stapler 100 completes the normal firing.

Claims

1. The utility model provides a safety mechanism of subassembly percussion when laparoscopic anastomat prevents not using which characterized in that: including setting up percussion safeties, percussion safety spring and the percussion insurance in the nail casket of chamber mirror anastomat and turning to the piece, the crowded link rod inner core that leans on chamber mirror anastomat of percussion safeties, percussion safety spring fixed connection percussion safeties and is used for resetting percussion safeties, the percussion insurance turns to the piece and is the arc structure, the bottom that the percussion insurance turned to the piece is provided with first protrusion piece and second protrusion piece respectively, be provided with on the percussion safeties with first protrusion piece assorted recess, seted up on chamber mirror anastomat's the cutting knife with second protrusion piece assorted notch, second protrusion piece and notch cooperate and are used for spacing the cutting knife.

2. The safety mechanism of claim 1, wherein the safety mechanism prevents the assembly from firing when not in use comprises: the nail box is provided with a nail box inner core upper cover and a nail box inner core lower cover, and the triggering safety device, the triggering safety spring and the triggering safety steering block are all arranged on the nail box inner core upper cover.

3. The safety mechanism of claim 2, wherein the safety mechanism prevents the assembly from firing when not in use comprises: an arc-shaped opening is formed in the upper surface of the nail box, and the triggering safety steering block is matched with the arc-shaped opening.

4. The safety mechanism of claim 1, wherein the safety mechanism prevents the assembly from firing when not in use comprises: the first protruding block is of a cylindrical structure, and the second protruding block is of a square structure.

5. A safety mechanism of an endoscopic stapler according to claim 1 or 4, to prevent firing of the assembly when not in use, characterized in that: the second protruding block is positioned at the bottom edge end of the triggering safety steering block.