TWI705790B - Actuating structure of vascular clip applier - Google Patents

Abstract

An actuating structure of a vascular clip applier is driven by an operating unit to allow a jaw to clamp a clip nail; the actuating structure of the blood vessel clip applier includes a body with a bump; a tube set, connected On the fuselage; a feeding push rod, which can be movably arranged in the tube group forward and backward, and can push the clamping nails forward; a bolt action is arranged on the fuselage so as to be axially movable; a feeding circulation claw, pivot The bolt is provided with a front end, and a rear end that can be touched by the protrusion of the fuselage when the feeding circulation claw moves forward, so that the front end changes from a raised position to a lowered position; A loading plug is arranged on the body to link the loading push rod; a loading spring is used to push the loading plug and move backward; the front end of the loading loop claw can push the loading The plug moves forward, and when the front end of the loading circulation claw is pressed down to the loading plug, the loading spring can push the loading plug back to the original position; a push rod can be moved forward and backward. In the tube assembly, after the loading plug returns to the original position, the front end of the loading circulation claw is still in a depressed state and can continue to push the overrun push rod forward to drive the jaw to clamp the clamping nail; The cover spring is used to push the cover push rod to move backward.

Description

Actuating structure of vascular clip applier

The present invention is related to the technique of a vascular clip applier, and particularly relates to an actuation structure of a vascular clip applier.

The known actuating structure of the vascular clip applier has a complicated transmission mechanism, and therefore its transmission is less reliable, and may cause overlap or neutrality; therefore, the lack of the actuating structure of the conventional vascular clip applier remains to be improve.

In view of the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide an actuating structure of the vascular clip applier, which can simplify the transmission mechanism, make the transmission more reliable, and operate more smoothly.

In order to achieve the above objective, the present invention provides an actuating structure of a vascular clip applier, which is driven by an operating unit to enable a jaw to clamp the nail; the actuating structure of the vascular clip applier includes a body with A bump; a tube set connected to the fuselage; a loading push rod, which can be movably arranged on the tube set forward and backward, and can push the clamping nail forward; a bolt, which is axially movable on the machine Body; a loading circulating claw, pivoted on the bolt, with a front end, and a rear end when the loading circulating claw moves forward, it can be touched by the protrusion of the body to make the front end From the tilted out position to the down position; a loading plug is arranged on the body to link the loading push rod; a loading spring is used to push the loading plug to move backward; the front end of the loading cycle claw When the upper part is tilted out, the upper material plug can be pushed to move forward. When the front end of the upper material circulation claw is pressed down to the upper material plug, the upper material spring can push the upper material plug back to the original position; The push rod can be movably arranged in the tube group back and forth. After the loading plug returns to the original position, the front end of the loading loop claw is still in a depressed state and the push rod can be pushed forward to drive it The jaw clamps the clamping nail; a cover spring is used to push the cover push rod to move backward.

With the structure and the action process, it can simplify the transmission mechanism, make the transmission action more reliable, and the action more smoothly, thus achieving the purpose of the invention.

Preferably, the bolt machine is provided with a containing groove, and the feeding circulating claw is installed in the containing groove.

Preferably, the fuselage has a bushing, and the upper plug is installed in the bushing.

Preferably, it further includes an elastic piece arranged on the bolt, and the elastic piece can be pressed against the rear end of the loading circulating claw so that the front end of the loading circulating claw is lifted out to abut against the loading plug.

Preferably, the operating unit has a bolt connecting rod to pivot the bolt, and the pivoting center of the bolt connecting rod and the bolt is axially behind the pivoting center of the feeding circulation claw and the bolt.

Preferably, the upper material plug can surround the overlying push rod.

Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments:

As shown in Figure 1, the actuating structure of a vascular clip applier provided by the present invention is driven by an operating unit (200) to make a jaw (1) clamp the clip nail (35) (see Figure) 12).

As shown in Figures 2 to 7, the actuating structure of the vascular clip applier includes:

A fuselage (100) is provided with a bushing (110), a sliding groove (120) is provided on the left and right sides of the rear of the two shells, and a convex block (199) is provided on the left and right sides of the middle section of the two shells.

A tube group (700) is connected to the fuselage (100).

A feeding push rod (3) is movably arranged on the tube group (700) back and forth, and can push the clamping nail (35) forward.

A bolt (20) is axially movable on the fuselage (100); the front of the bolt (20) is provided with a pocket (201), and a sliding wing (202) is slidably fitted on the left and right sides of the rear. In the sliding groove (120) of the fuselage (100), there are pivot rods (203) on the left and right sides of the middle section, respectively, for the operation unit (200) to pivotally push the bolt (20).

A feeding circulating claw (21) is accommodated in the receiving groove (201) of the bolt machine (20) and is pivotally connected to the bolt machine (20); in more detail, the feeding circulating pawl (21) It is pivotally connected to the bolt (20) to be tilted to a tilted out position and a lower pressing position; the loading circulating claw (21) has a front end (211) and a rear end (212), when the upper When the material circulating claw (21) moves forward, its rear end (212) is pressed by the convex block (199) to make the feeding circulating claw (21) reach the pressing position.

A shrapnel (28) is arranged on the bolt (20), the shrapnel (28) can be pressed against the rear end (212) of the loading circulating claw (21) to make the front end of the loading circulating claw (21) (211) Abut against the loading plug (17). In more detail, the elastic piece (28) has an abutting end that can be pressed against the rear end (212) of the loading circulating claw (21) so that the front end (211) of the loading circulating claw (21) is located It should be out of position.

Wherein, the operating unit (200) has a bolt link (26) to pivot the bolt (20), and the pivoting center of the bolt link (26) and the bolt (20) is axially behind the bolt The pivotal center of the feeding circulating claw (21) and the bolt machine (20).

A loading plug (17) is arranged on the body (100), which is linked with the loading push rod (3); in this embodiment, the loading plug (17) is installed in the bushing (110) .

A loading spring (18) is used to push the loading plug (17) to move backward.

When the front end (211) of the loading circulating claw (21) is tilted out, the loading plug (17) can be pushed to move forward, and the front end (211) of the loading circulating claw (21) is pressed down until it does not abut When the loading plug (17) is used, the loading spring (18) can push the loading plug (17) back to the original position.

An overlying push rod (6) is movably arranged on the tube group (700) back and forth. After the loading plug (17) returns to the original position, the front end (211) of the loading circulating claw (21) is still there. In a depressed state, the overlying push rod (6) can be pushed forward to drive the jaw (1) to clamp the clamping nail (35).

A cladding spring (19) is used to push the cladding push rod (6) to move backward; wherein, the upper material plug (17) can surround the cladding push rod (6).

The various operating states of the present invention are described as follows:

As shown in Figure 8 (original state), where the operating unit (200) has not been operated yet, the bolt machine (20) is controlled by the operating unit (200) at the rear of its axial direction, and the loading circulating claw (21) ) The front end portion (211) protrudes by being pressed by the feeding circulation claw (21). Wherein, the upper material plug (17) is pushed by the upper material spring (18) and is located in its final position, and the overlying push rod (6) is pushed by the overlying spring (19) and is located in its final position. Last position.

As shown in Figure 9 (push state), start to operate the operating unit (200), that is, hold one of its handles (24), the operating unit (200) drives the bolt (20) to move axially forward, and the loading The front end (211) of the circulating claw (21) pushes the loading plug (17) to move forward (overcoming the elastic force of the loading spring (18)).

As shown in Figure 10 (the front end (211) starts to be depressed), when the operation continues to advance, the loading circulating claw (21) receives the protrusion (100) of the body (100) due to its rear end (212). 199) when it touches and deflects, the front end (211) of the loading circulating claw (21) no longer abuts the loading plug (17), and the loading plug (17) is immediately received by the loading spring ( 18) is pushed back to its original final position, as shown in Figure 10, that is, the loading plug (17) has just been retracted.

As shown in Figure 11 (in the state of clamping nails (35)), continue to operate the operating unit (200) again, and the bolt (20) is driven by the operating unit (200) to continue to move forward to push the overrun push The rod (6) overcomes the elastic force of the overlying spring (19) to move the overlying push rod (6) forward, and the overlying push rod (6) can drive the jaw (1) to be clamped in position Among them is the clip nail (35).

Then, the operating unit (200) is released without operating, and all components return to the original state, as shown in FIG. 8.

With the structure and the action process, it can simplify the transmission mechanism, make the transmission action more reliable, and the action more smoothly, thus achieving the purpose of the invention.

As shown in Figure 12, it is a three-dimensional exploded view of the front element of a preferred embodiment of the present invention; the unexplained structure and principle of action can be the same as the Taiwan Patent Publication No. I627933, which will not be described in detail here; however, this The elements of the preceding paragraph of the invention are not limited to only include the structure and the principle of action, and may also be of various other types.

In addition to the above embodiments, the present invention can also be implemented in the following ways:

For example, the bolt link (26) is not limited to two as described above, and it may be only one.

Alternatively, the rear end portion (212) of the loading circulating claw (21) is not necessarily arranged at the rear, as long as it can cooperate to actuate the loading circulating claw (21).

In summary, the actuating structure of the vascular clip applier of the present invention can indeed simplify the transmission mechanism, make the transmission motion more reliable, and operate more smoothly, so it does achieve the objective of the present invention.

(1): pliers mouth

(3): Feeding push rod

(6): Overlay putter

(17): Loading plug

(18): Loading spring

(19): Cover spring

(20): Bolt

(21): Feeding cycle claw

(24): Handle

(26): Bolt connecting rod

(28): Shrapnel

(35): Clip nail

(100): Body

(110): Bush

(120): Chute

(199): bump

(200): Operating unit

(201): Tolerance

(202): Sliding Wing

(203): Pivot Rod

(211): Front end

(212): Rear end

(700): Tube Group

Figure 1 is a perspective view of a preferred embodiment of the vascular clip applier of the present invention.

Figure 2 is another perspective view of the vascular clip applier according to a preferred embodiment of the present invention.

Fig. 3 is another perspective view of the vascular clip applier according to a preferred embodiment of the present invention.

Figure 4 is a partial perspective view of a preferred embodiment of the present invention.

Figure 5 is a perspective view of another part of a preferred embodiment of the present invention.

Figure 6 is a perspective view of another part of a preferred embodiment of the present invention.

Fig. 7 is a perspective view of another part of a preferred embodiment of the present invention.

Fig. 8 is an explanatory diagram of a preferred embodiment of the present invention not yet operating.

Fig. 9 is an explanatory diagram of a preferred embodiment of the present invention just pushed.

Figure 10 is a schematic diagram of a preferred embodiment of the present invention when the loading plug has just been pushed back by the loading spring.

Fig. 11 is an explanatory diagram of a preferred embodiment of the present invention where the overrun push rod is pushed forward by the bolt.

Figure 12 is a perspective exploded view of the front element of a preferred embodiment of the present invention.

(3): Feeding push rod

(6): Overlay putter

(17): Loading plug

(18): Loading spring

(19): Cover spring

(20): Bolt

(21): Feeding cycle claw

(28): Shrapnel

(100): Body

(200): Operating unit

(211): Front end

(212): Rear end

Claims (10)

An actuating structure of a vascular clip applier is driven by an operating unit (200) to enable a jaw (1) to clamp a clamping nail (35); the actuating structure of the vascular clip applier includes: A body (100) with a bump (199); A tube group (700), connected to the fuselage (100); A loading push rod (3), which can be movably arranged on the tube group (700) back and forth, and can push the clamping nail (35) forward; A bolt (20), which is axially movable on the fuselage (100); A loading circulating claw (21) is pivoted on the bolt machine (20) and has a front end (211) and a rear end (212) that can be received when the loading circulating claw (21) moves forward. The protruding block (199) of the fuselage (100) touches and causes the front end (211) to change from a protruding position to a depressing position; A loading plug (17) is arranged on the body (100), and is linked to the loading push rod (3); A loading spring (18) for pushing the loading plug (17) to move backward; When the front end (211) of the loading circulating claw (21) is tilted out, the loading plug (17) can be pushed to move forward, and the front end (211) of the loading circulating claw (21) is pressed down until it does not abut When the loading plug (17) is used, the loading spring (18) can push the loading plug (17) back to the original position; An overlying push rod (6) is movably arranged on the tube group (700) back and forth. After the loading plug (17) returns to the original position, the front end (211) of the loading circulating claw (21) is still there. Depressed state can continue to push the overhang push rod (6) forward to drive the jaw (1) to clamp the clamping nail (35); A cladding spring (19) is used to push the cladding push rod (6) to move backward. According to the operating structure of the vascular clip applier according to claim 1, wherein the bolt (20) is provided with a container (201), and the feeding circulation claw (21) is installed in the container (201). The operating structure of the vascular clip applier according to claim 2, wherein the body (100) has a bush (110), and the upper plug (17) is installed in the bush (110). The operating structure of the vascular clip applier according to claim 1, wherein the body (100) has a bush (110), and the upper plug (17) is installed in the bush (110). For example, the actuating structure of the vascular clip applier according to claim 1 or 2 or 3 or 4, which further comprises an elastic piece (28) arranged on the bolt machine (20), and the elastic piece (28) can be pressed against the feeding circulation claw The rear end part (212) of (21) makes the front end part (211) of the loading circulation claw (21) bend out and abut against the loading plug (17). The actuation structure of the vascular clip applier according to claim 5, wherein the operating unit (200) has a bolt link (26) to pivot the bolt (20), the bolt link (26) and the bolt The pivoting center of (20) is axially behind the pivoting center of the feeding circulating claw (21) and the bolt (20). The actuation structure of the vascular clip applier according to claim 1 or 2 or 3 or 4, wherein the operating unit (200) has a bolt link (26) to pivot the bolt (20), the bolt link (26) The pivotal center of the bolt (20) is axially behind the pivotal center of the loading circulating claw (21) and the bolt (20). According to the actuating structure of the vascular clip applier according to claim 7, wherein the upper material plug (17) can surround the overlying push rod (6). According to the actuating structure of the vascular clip applier according to claim 5, the upper material plug (17) can surround the overlying push rod (6). The actuating structure of the vascular clip applier according to claim 1 or 2 or 3 or 4, wherein the loading plug (17) can surround the overlying push rod (6).

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