Replaceable clip polymer co-fired clip applier, replaceable clip method, and clip application method

Abstract

The application provides a replaceable polymer continuous stapler, which comprises a shell, a transmission mechanism assembly, an actuator assembly, a clamp reference framework, a clamp and a clip. The shell is in the shape of a knob and is divided into two cavities, which are respectively provided with the transmission mechanism assembly and the actuator assembly. The transmission mechanism assembly outputs a first push rod and a second push rod in opposite directions, which are connected with a closing slide and a push slide of the actuator assembly. The clamp reference framework is fixed in a front positioning ring, and the clamp and the clip are respectively fixed thereon. The closing slide and the push slide are connected with a closing push rod and a push push rod, so as to control the closing and clamping of the clamp and the forward movement of the closing clamp in the clip. The separate clip is arranged, so that the stapler can be repeatedly used and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clip appliers, in particular to a polymer multi-shot clip applier with replaceable clips, a method for replacing clips and a method for applying clips. BACKGROUND

[0002] In human surgical operations, such as abdominal operations, clip appliers are often used in cooperation with closure clips to ligate blood vessels or tissues to block blood flow. The existing clip appliers are mainly single-shot clip appliers and disposable multi-shot clip appliers. The single-shot clip applier needs to be reinstalled with tissue clips at the head of the applier after each operation. The disposable multi-shot clip applier has an internal non-detachable replacement clip cartridge, and a certain number of clips are preloaded in the cartridge, which can be continuously fired. Compared with the single-shot clip applier, the disposable multi-shot clip applier improves the efficiency of clip application, but due to its disposable nature, the cost is relatively high, which increases the economic burden of both doctors and patients. SUMMARY

[0003] The present application aims to overcome the above-mentioned problems in the prior art and provide a polymer multi-shot clip applier with replaceable clips, a method for replacing clips and a method for applying clips.

[0004] The present application provides a polymer multi-shot clip applier with replaceable clips, comprising: a housing, a transmission mechanism assembly, an actuator assembly, a pincer reference framework, a pincer opening and a clip.

[0005] The housing is in the shape of a handle and comprises an upper cavity and a lower cavity.

[0006] The transmission mechanism assembly is arranged in the lower cavity, and the transmission mechanism assembly outputs a first push rod and a second push rod in opposite directions through intermeshing gears.

[0007] The actuator assembly is arranged in the upper cavity, and the actuator assembly comprises a closure slider and a push rod slider slidingly arranged on an action limiting sleeve. The closure slider and the push rod slider are connected to the first push rod and the second push rod. The front side of the action limiting sleeve is fixed on a front side positioning ring, and the rear side is fixed on a rear side positioning ring.

[0008] The pincer reference framework is fixed in the front side positioning ring. The pincer opening is fixed at the front end of the pincer reference framework, and the clip is fixed on the pincer reference framework.

[0009] The closure slider and the push rod slider are respectively connected to a closure push rod and a push push rod arranged on the pincer reference framework.

[0010] The closure push rod controls the closing of the closure clip into the pincer opening, and the push push rod is connected to and controls the forward movement of the closure clip in the clip.

[0011] Optionally, the closing push rod controls the closing of the jaws and comprises:

[0012] A jaw sleeve is provided in the jaws, and the jaw sleeve is connected to the clamping push rod and is pushed by the clamping push rod to slide forward;

[0013] The closing clamp sleeve pushes the closing clamp to close the opening.

[0014] Optionally, the rear end of the rear positioning ring includes: an end cover;

[0015] The end cover is opened to allow the magazine to be inserted and mounted on the pliers reference frame.

[0016] Optionally, an anti-flipping mechanism is provided on the front reference frame.

[0017] Optionally, a magazine fixing member is provided on the action limiting sleeve;

[0018] The magazine fixing piece is limited by the closing slider to clamp the magazine;

[0019] When the clamp closing slider on the action limiting sleeve slides to the limit position, the clamp closing slider releases the magazine fixing piece, and the magazine fixing piece pops out to unlock the magazine.

[0020] Optionally, a clamping push rod limiting sleeve is provided on the clamp reference frame to limit the clamping push rod to only one degree of freedom.

[0021] The present application also provides a clip applier, comprising: a split clip applier and a clip.

[0022] The present application also provides a method for replacing a magazine with a clip applier, comprising: using the polymer continuous-fire clip applier with a replaceable magazine, when replacing the magazine, comprising:

[0023] Open the end cover;

[0024] removing the spent magazine of the closing clip from the opening of the end cap;

[0025] Insert a new magazine from the open end cover;

[0026] The end caps are closed.

[0027] The present application also provides a clipping method, comprising: applying clips using the polymer continuous clip applicator with the replaceable magazine.

[0028] The beneficial effects of this application are:

[0029] The application provides a replaceable clip polymer continuous application clipper, which comprises a shell, a transmission mechanism assembly, an actuator assembly, a clip reference framework, a clipper and a clip; the shell is in the shape of a knob, and comprises an upper cavity and a lower cavity; the transmission mechanism assembly is arranged in the lower cavity, and the transmission mechanism assembly outputs a first push rod and a second push rod in opposite directions through intermeshing gears; the actuator assembly is arranged in the upper cavity, and the actuator assembly comprises a clip closing slider and a push rod slider which are slidably arranged on a movement limiting sleeve; the clip closing slider and the push rod slider are connected with the first push rod and the second push rod; the front side of the movement limiting sleeve is fixed on a front side positioning ring, and the rear side is fixed on a rear side positioning ring; the clip reference framework is fixed in the front side positioning ring; the clipper is fixed at the front end of the clip reference framework, and the clip is fixed on the clip reference framework; the clip closing slider and the push rod slider are respectively connected with a clip closing push rod and a push push rod which are arranged on the clip reference framework; the clip closing push rod controls the closing of the clipper, and the push push rod is connected with and controls the forward movement of the clip. The application can realize the reuse of the clipper by replacing the clip during the application of the clip, and the high use cost of the disposable clipper is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 FIG. 1 is a structure schematic diagram of the replaceable clip polymer continuous application clipper in the application;

[0031] Figure 2 FIG. 2 is a schematic diagram of the transmission mechanism assembly and the actuator assembly in the application;

[0032] Figure 3 FIG. 3 is a first assembly structure schematic diagram of the anti-inversion mechanism in the application;

[0033] Figure 4 FIG. 4 is a second assembly structure schematic diagram of the anti-inversion mechanism in the application;

[0034] Figure 5 FIG. 5 is a first structure schematic diagram of the clip lock in the application;

[0035] Figure 6 FIG. 6 is a second structure schematic diagram of the clip lock in the application;

[0036] Figure 7 FIG. 7 is a schematic diagram of the cooperation between the clip and the push hook in the application.

[0037] Polymer burst clip applier 1; handle 2; action limit sleeve 3; rear positioning ring 4; rear end frame 5; reference frame 6; push slide 7; driving gear 8; driven gear 9; push push rod 10; magazine assembly 11; magazine 12; push plate 13; transfer groove 14; transfer hole 15; direction identification member 16; magazine locking member 17; positioning ring 18; plastic end cap 19; push hook 20. DETAILED DESCRIPTION

[0038] The present application will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present application and implement it.

[0039] The following contents are all examples of specific implementation processes provided for detailed description of the technical solutions to be protected by this application. However, this application is also implemented in other ways different from the descriptions herein. Under the guidance of the concept of this application, those skilled in the art may implement this application using different technical means. Therefore, this application is not limited to the specific embodiments below.

[0040] Please refer to Figure 1 As shown, the present application provides a polymer repeating clip applier with a replaceable clip, the clip applier comprising: a housing, a transmission mechanism assembly, an actuator assembly, a jaw base frame, a jaw, and a clip. The following is a detailed description of the polymer repeating clip applier with a replaceable clip described in the present application.

[0041] Please refer to Figure 2 As shown, the shell described in this application is in the shape of a handle, and the internal space of the shell can be divided into an upper cavity and a lower cavity.

[0042] A transmission mechanism assembly is installed in the lower cavity, including a driving gear, a driven gear, a first push rod, a second push rod, and a toggle member for inferring the rotation of the driving gear.

[0043] The driving gear can be driven to rotate. Specifically, a toggle member is fixed on the toothed disc of the driving gear, and the driving gear is driven to rotate by toggling the toggle member.

[0044] The driving gear 8 is meshed with the driven gear 9, the driving gear is fixedly connected to the first push rod, and the driven gear 9 is connected to the second push rod 10; the first push rod swings as the driving gear rotates forward and reverse, and the second push rod 10 swings back and forth as the driven gear 9 rotates forward and reverse.

[0045] Furthermore, the transmission mechanism assembly is fixedly installed in the upper cavity, including: an action limiting sleeve, a clamping slider, and a pushing slider.

[0046] A clamping slider and a push rod slider are slidably mounted on the action limiting sleeve.

[0047] The first push rod is connected to the clamping slider, and the second push rod 10 is connected to the pushing slider 7. The heads of the first push rod and the second push rod 10 swing back and forth to push the clamping slider and the pushing slider 7 to slide relative to each other on the action limiting sleeve 3.

[0048] The front end of the action limiting sleeve 3 is fixedly connected to the front positioning ring 18 , and the rear end is fixedly connected to the rear positioning ring 18 .

[0049] The clamp reference frame 6 is fixed inside the front positioning ring (18), and the rear end positioning ring (18) and the action limiting sleeve 3 accommodate the rear end frame 5 inside.

[0050] The clamp reference frame 6 and the rear end frame 5 form an entire internal space to accommodate the magazine, and the magazine can slide back and forth in the internal space.

[0051] The rear end frame 5 is provided with an anti-flipping mechanism.

[0052] like Figure 3 and Figure 4 As shown, the anti-flip mechanism includes: a direction identification member (16), the structure of the direction identification member includes: an end arm and a root arm forming a V shape, the root arm is fixed to the clamp reference frame, and the V-shaped protrusion passes through an opening provided on the clamp reference frame and sinks into the internal space of the clamp reference frame. The end arm is provided with a blocking piece, and the blocking piece has a preset width, and the width is greater than the width of the end arm.

[0053] Correspondingly, notches of different lengths are provided on both sides of the front end surface of the magazine (12), and the notches can accommodate the width of the end arms.

[0054] Specifically, when the magazine assembly 11 is inserted in the correct direction, the length of the gap is shorter at this time, and the magazine first contacts the end arm gap, and the gap contacts the end arm and pushes the end arm upward in a counterclockwise direction, and the magazine assembly 11 continues to be inserted forward.

[0055] When the clip assembly 11 is inserted in the wrong direction, the length of the gap is longer. Before the gap contacts the end arm, the part of the clip outside the gap contacts the blocking piece, which pushes the clip forward. At this time, the clip assembly 11 cannot continue to penetrate into the clamp.

[0056] Furthermore, the clamping slider is connected to the clamping connecting rod, and the pushing slider is connected to the pushing connecting rod. The clamping connecting rod is connected to the jaws to control the jaws to open and close the clamping.

[0057] The tail of the action limiting sleeve 3 is also provided with a magazine locking piece (17), which is used to cooperate with the transfer hole (15) provided at the tail of the magazine (12) to achieve locking of the magazine assembly 11.

[0058] like Figure 5 and Figure 6 As shown, the magazine lock (17) can rotate on the action limiting sleeve 3 around the rotation axis of the magazine lock connected to the action limiting sleeve, and will be constrained by the pushing slider 7. When the closing slider moves forward to the limit position, the magazine lock (17) loses the constraint of the closing slider. At this time, the magazine lock (17) can rotate clockwise along the rotation axis and lift up to disengage from the transfer hole (15) set at the tail of the magazine (12).

[0059] At this time, the clip assembly 11 can be pulled out and a new clip assembly 11 can be reinserted.

[0060] Specifically, after the new magazine assembly 11 is fully inserted, the closing slide moves backward, pressing the magazine lock (17) into the transfer hole (15) provided at the rear of the magazine (12), thereby limiting the position of the closing slide. At this time, when the magazine assembly 11 is pulled backward, the magazine lock (17) will not rotate clockwise along the rotating shaft and lift upward, and the magazine assembly 11 is locked and cannot be pulled out by external force.

[0061] A push piece is also provided on the clamp reference frame.

[0062] like Figure 7 As shown, the push plate is provided with a push hook (20), and the push plate moves synchronously with the push slider 7 through the transmission of the push connecting rod. When the push slider 7 moves backward to cause the push plate to move backward, the push hook (20) is disengaged from the transfer groove (14) provided on the clip assembly 11, and the clip (13) loses the constraint of the push hook (20), so that the clip assembly 11 can be taken out from the rear end of the clip applier.

[0063] The rear end of the rear positioning ring includes an end cover; when the end cover is opened, the magazine is inserted into and installed on the clamp reference frame.

[0064] After the new magazine assembly 11 is fully inserted, the push slide 7 moves forward to move the push plate forward, and the push hook (20) enters the transfer slot (14) and cooperates with it. At this time, the magazine is limited by the push hook (20), so that the magazine (12) is fixed inside the clip applicator.

[0065] In the initial state, the toggle member 2 is pressed to rotate counterclockwise. At this time, the driving gear 8 rotates counterclockwise with the toggle member 2, driving the driven gear 9 to rotate clockwise. The push rod 10 swings backward with the clockwise rotation of the driven gear 9 and pushes the push slider 7 to move backward.

[0066] When the push slider 7 is moved backward to the limit position, the cartridge locking member (17) loses the constraint of the push slider 7, at the same time, the push piece moves with the push slider 7 to the limit position, the push hook (20) is lifted, the transmission slot (14) provided on the push piece (13) in the cartridge assembly 11 loses the constraint of the push hook (20), at this time, the cartridge assembly 11 is pulled out backward, the transmission hole (15) pushes the cartridge locking member (17) to rotate clockwise and move upward, and the cartridge (12) is pulled out.

[0067] At this time, the knob 2 is kept fixed, the new cartridge assembly 11 is inserted, and the cartridge assembly 11 is first matched with the direction identification member (16) and identifies the direction in the insertion process. When the direction is correct, the cartridge assembly 11 can continue to be inserted, and when the direction is incorrect, the cartridge assembly 11 will be stopped and cannot continue to be inserted.

[0068] At this time, the cartridge assembly 11 is taken out, turned over by 180° and reinserted. When the cartridge assembly 11 is completely inserted, the knob 2 is loosened and rotated clockwise, the driving gear 8 rotates clockwise with the knob 2, drives the driven gear 9 to rotate counterclockwise, the push rod 10 swings forward with the driven gear 9 rotating counterclockwise, and pushes the push slider 7 to move forward.

[0069] When the push slider 7 is moved forward to the limit position, the cartridge locking member (17) is constrained and fixed by the push slider 7 and enters the transmission hole (15), at the same time, the push piece moves with the push slider 7, the push hook (20) moves downward and enters the transmission slot (14) provided on the push piece (13) in the cartridge assembly 11, at this time, the cartridge assembly 11 is locked and cannot be pulled out backward, and the assembly of the cartridge assembly 11 is completed.

Claims

1. A polymer clip applier with a replaceable magazine, characterized in that: include: Housing, transmission mechanism assembly, actuator assembly, clamp reference frame, jaws and clip; The housing is in the shape of a handle and includes an upper cavity and a lower cavity; The transmission mechanism assembly is arranged in the lower cavity, and the transmission mechanism assembly includes a driving gear and a driven gear. A toggle is fixed on the toothed disc of the driving gear. The driving gear is driven to rotate by pressing the toggle to rotate the driving gear counterclockwise, and by releasing the toggle to rotate the driving gear clockwise. The driving gear is fixedly connected to the first push rod, and the driven gear is connected to the second push rod. The transmission mechanism assembly outputs the first push rod and the second push rod in opposite motion through the mutually meshing gears. The actuator assembly is disposed in the upper cavity, and the actuator assembly includes a clamping slider and a pushing slider slidably disposed on an action limiting sleeve; the clamping slider and the pushing slider are connected to the first push rod and the second push rod; the front side of the action limiting sleeve is fixed to the front positioning ring, and the rear side is fixed to the rear positioning ring; The clamp reference frame is fixed in the front positioning ring; The jaws are fixed to the front end of the jaw reference frame, and the magazine is fixed to the jaw reference frame; a push piece is provided on the push piece, and a push hook is provided on the push piece, and the clamping slide and the pushing slide are respectively connected to the clamping push rod and the pushing push rod provided on the jaw reference frame, and the push piece moves synchronously with the pushing slide in the transmission groove provided on the magazine assembly through the transmission of the pushing push rod, so that the push hook is out of contact with the transmission groove when the pushing slide moves backward; the tail of the action limiting sleeve is provided with a magazine locking piece, which cooperates with the transmission hole provided at the tail of the magazine, and the magazine locking piece can rotate around the rotating shaft connecting the magazine locking piece to the action limiting sleeve on the action limiting sleeve, and will be constrained by the pushing slide, and when the clamping slide moves forward to the limit position, the magazine locking piece loses the constraint of the clamping slide; The closing push rod controls the opening and closing of the closing clamp entering the jaws, and the pushing push rod is connected to and controls the forward movement of the closing clamp in the magazine.

2. The polymer burst clip applier with replaceable magazine according to claim 1, characterized in that: The closing clamp push rod controls the opening and closing of the closing clamp entering the jaws, including: A jaw sleeve is provided in the jaws, and the jaw sleeve is connected to the clamping push rod and is pushed by the clamping push rod to slide forward; The jaw sleeve pushes the jaws closed.

3. The polymer burst clip applier with replaceable magazine according to claim 1, characterized in that: The clamp reference frame is also provided with a push piece; The push piece is provided with a push hook, and the push piece moves synchronously with the push slider; When the pushing slide moves backward, causing the pushing plate to move backward, the pushing hook is disengaged from the transfer slot provided on the magazine assembly; At this time, the push piece is taken out from the rear end of the clip applier along with the clip assembly.

4. The polymer burst clip applier with replaceable magazine according to claim 1, characterized in that: The rear end of the rear positioning ring includes: an end cover; The end cover is opened to allow the magazine to be inserted and mounted on the pliers reference frame.

5. The polymer burst clip applier with replaceable magazine according to claim 1, characterized in that: An anti-flipping mechanism is provided on the clamp reference frame.

6. The polymer burst clip applier with replaceable magazine according to claim 1, characterized in that: The action limiting sleeve is provided with a magazine locking piece; The magazine locking piece is limited by the closing slider to lock the magazine; When the clamping slide block on the action limiting sleeve slides to the limit position, the clamping slide block releases the magazine locking piece, and the magazine locking piece pops out to unlock the magazine.

7. The polymer burst clip applier with replaceable magazine according to claim 1, characterized in that: A clamping push rod limiting sleeve is provided on the clamp reference frame, which is used to limit the clamping push rod to have only one degree of freedom.

8. A method for replacing a magazine with a clip applier, characterized in that: include: When using the polymer burst clip applier with replaceable magazine according to any one of claims 1 to 7, when replacing the magazine, it includes: Open the end cover; removing the spent magazine of the closing clip from the opening of the end cap; Insert a new magazine from the open end cover; The end caps are closed.

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