CN216823560U - Transmission member and bin clamping device thereof - Google Patents

Abstract

The utility model provides a transmission part, which comprises a transmission part main body, an elastic pushing part and an elastic stopping part, wherein the elastic pushing part and the elastic stopping part are arranged on the transmission part main body; the elastic pushing piece can be in transmission connection with a pushing clamping piece of the clip applier in a first direction; the elastic retainer can be matched with the top of the clip bin of the clip applier to prevent the transmission piece from moving towards the second direction when the clip pushing piece moves towards the second direction opposite to the first direction. Also provides a bin clamping device comprising the transmission piece. The transmission piece is favorable for pushing the clamping piece to convey the clamp, so that the clamping bin device is stable in conveying the clamp, and the situation that the clamping piece is clamped is avoided.

Description

Transmission member and bin clamping device thereof

Technical Field

The utility model relates to a surgical operation apparatus field especially executes clamp technical field.

Background

Clip appliers are commonly used to clip tubular tissue during surgery, thereby avoiding fluid seepage within the tubular tissue. To improve the efficiency of the procedure, clip appliers capable of continuous clip feeding are often used. A plurality of closed clamps are stored in a clamp bin of the clamp applier for continuously feeding the clamps, and when the clamp applier finishes the triggering of one closed clamp to close the clamp, the next closed clamp can be sent to a jaw for the next triggering; the continuous firing of the clip applier to the closing clip reduces the hemostasis time in the surgical operation process and improves the operation efficiency.

Some clip appliers currently on the market employ a push jaw to directly push the distal-most closure clip into the jaw opening while pushing the remaining closure clips distally through a transition structure. The provision of this transition structure then helps to form a stable clip feed during actual use of the clip applier with subsequent firing of the closure clips, avoiding new damage to the tubular tissue or tissue adjacent thereto.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the problems in the art described above, the present invention solves at least to some extent. Therefore, the utility model provides a driving medium and press from both sides storehouse device thereof makes the clamp applicator send to press from both sides stably in the use, is difficult for appearing sending the dead situation of clamp card.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

in a first aspect, the present invention provides a transmission member, which includes a transmission member main body, and an elastic pushing member and an elastic stopper disposed on the transmission member main body;

the elastic pushing piece can be in transmission connection with a pushing clamping piece of the clip applier in a first direction;

the elastic stop piece can be matched with the top of the clip bin of the clip applier so as to prevent the transmission piece from moving towards a second direction opposite to the first direction when the clip pushing piece moves towards the second direction.

Preferably, the elastic pushing piece is a pushing elastic sheet arranged on the transmission piece main body, and the pushing elastic sheet tilts towards the upper side of the transmission piece main body along the second direction.

Preferably, the pushing elastic sheet is a cantilever structure having a distal end and a proximal end, the distal end is a first fixed end of the pushing elastic sheet, and the proximal end is a tilting end of the pushing elastic sheet.

Preferably, the elastic stop piece is a stop elastic piece arranged at the top of the transmission piece, the stop elastic piece comprises an inclined part, the inclined part extends obliquely from the middle part of the top of the transmission piece main body in the left-right direction at least towards the left side or the right side, and the free end of the inclined part forms an abutting end capable of being matched with the top of the clamping bin.

Preferably, the stopper shell fragment still includes with the slope is located same horizontal plane and the horizontal part that the contained angle set up each other, the other end of slope with the horizontal part links to each other, the horizontal part is located the distantly than the slope.

Preferably, the horizontal part is located the ascending middle part in driving medium top left and right sides and be on a parallel with the axis of driving medium extends, and its other end of keeping away from the rake is for setting firmly in the second stiff end at driving medium main part top, the second stiff end is the T setting that appears.

Preferably, the driver body is an elongate member having a distal end and a proximal end, the distal end having a sloped wall that is capable of mating with a closure clip closure tail;

the elastic pushing piece is located on the far side of the transmission piece main body compared with the elastic stopping piece.

In a second aspect, the present invention provides a cartridge device, comprising a cartridge for accommodating a plurality of closed clips, a jaw connected to a distal end of the cartridge, and a clip pushing piece inserted into the cartridge;

the clamping bin also comprises the transmission piece, at least part of the transmission piece is positioned in the clamping bin,

the push-clip piece is capable of pushing a distal-most closure clip into the jaws when moving in the first direction;

the elastic pushing piece and the pushing clamping piece are in transmission connection in the first direction;

the elastic stopping piece is matched with the top of the clip bin of the clip applier so as to prevent the transmission piece from moving towards the second direction when the clip pushing piece moves towards the second direction;

wherein the first direction is a clip feeding direction.

Preferably, the bottom of the pushing and clamping piece is provided with a plurality of one-way pushing grooves which are in transmission connection with the elastic pushing piece in the first direction and are arranged in the far and near directions;

the near-end wall of the one-way push groove is a push wall, and the far-end wall of the one-way push groove is an inclined wall inclined towards the far end;

the elastic pushing piece is located in one unidirectional pushing groove in a natural state, when the pushing clamping piece moves towards the far end of the clamping bin, the near end wall of the unidirectional pushing groove and the elastic pushing piece form same-direction pushing transmission, and when the pushing clamping piece moves towards the near end of the clamping bin, the elastic pushing piece slides along the far end wall of the unidirectional pushing groove until the elastic pushing piece and the far end wall of the unidirectional pushing groove are separated and enter the next unidirectional pushing groove.

Preferably, at least one side of the top of the cartridge is provided with a one-way stop groove matched with the elastic stop piece;

the stop wall of the one-way stop groove is used for being abutted against the tilting end of the elastic stop piece;

when the clamping pushing piece moves towards the far end of the clamping bin, the elastic stopping piece is separated from the one-way stopping groove and enters the next one-way stopping groove;

when the clamping pushing piece moves towards the near end of the clamping bin, the tilting end of the elastic stopping piece is abutted against the stopping wall of one-way stopping groove to stop the transmission piece.

(III) advantageous effects

The utility model has the advantages that:

the utility model provides a setting is at the inside driving medium in pressing from both sides the storehouse, when pushing away the clamping piece and will treating to go into pincers closure clamp propelling movement and send into pincers, pushes away the clamping piece and presss from both sides all the other closures through the driving medium and toward pressing from both sides the storehouse distal end propelling movement, and the clamp feeding mode is stable, avoids appearing the dead situation of clamp feeding card.

In addition, when the push clamping piece moves towards the far end, the transmission piece can fixedly move for a preset distance under the pushing of the push clamping piece, so that the closing clamp is ensured to be pushed for the preset distance towards the far end every time.

The utility model provides a driving medium and double-layered storehouse device send to press from both sides simple structure, and is with low costs.

Drawings

The invention is described with the aid of the following figures:

fig. 1 is a partially exploded view of a bin clamping device according to an embodiment 1 of the present invention;

FIG. 2 is a schematic view of a closure clip used with the cartridge device of FIG. 1;

FIG. 3 is a schematic view of the clip magazine of FIG. 1 with the push clip removed and containing the closure clip;

FIG. 4 is a cross-sectional view of the clip magazine of FIG. 1 with the pusher shoe removed and containing a closure clip;

FIG. 5 is a schematic view of the structure of the transmission member of the cartridge device of FIG. 1;

FIG. 6 is a top view of a drive member of the cartridge device of FIG. 1;

FIG. 7 is a partial longitudinal cross-sectional view of the cartridge of FIG. 1;

fig. 8 is an enlarged view of a portion of the structure of fig. 7.

[ description of reference ]

1: closing the clamp;

11: a first clamp arm; 12: a second clamp arm; 13: a V-shaped tail; 14: closing the clamp when the clamp is put into; 15: a final closing clip;

2: clamping a bin;

21: a bin clamping bottom plate; 22: a first side wall; 23: a second side wall; 24: a side top wall; 25: a one-way retaining groove; 251: a stopper wall; 252: sliding out of the wall;

3: pushing the clamping piece;

31: pushing the groove in a one-way manner; 311: a first unidirectional push slot; 312: a second one-way push slot; 313: a third one-way push slot; 32: a push wall; 33: a sloped wall;

4: a transmission member;

41: a transmission member main body; 42: pushing the elastic sheet; 43: a stop spring plate; 411: engaging the sloped wall; 421: a first fixed end; 422: a raised end; 431: an inclined portion 431; 432: a butting end; 433: a horizontal portion; 434: a second fixed end;

5: a jaw; 6: briquetting; 7: a jaw fixing sheet; 8: a striking plate; 9: an outer sleeve.

Detailed Description

It should be noted that "proximal" as referred to herein means the side closer to the operator, and "distal" means the side closer to the patient. As used herein, the terms "upper," "lower," "front," "rear," "left," "right," and the like are used with reference to the orientation of FIG. 4.

To clearly illustrate the technical problem that the present invention actually solves, the following is explained by a clip magazine device of an exemplary clip applier and an exemplary closing clip. It should be understood, however, that the present invention is not intended to be limited to the drive members, closure clips and cartridge devices illustrated by the exemplary constructions set forth herein. Rather, these examples are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Example 1

As shown in fig. 1, the utility model discloses a double-layered storehouse device that exemplary provides includes: a magazine 2 containing a plurality of closing clips 1, a transmission 4 located at least partially in said magazine 2, and a pusher blade 3 inserted in said magazine 2. Of course, for those skilled in the art, the cartridge device may further include: a jaw 5 and a pressing block 6 at the far end of the clip bin 2, a jaw fixing sheet 7 for fixing the jaw 5, a firing sheet 8 for clamping the jaw 5 closed to complete the firing of the closure clip 1, and an outer sleeve 9 for accommodating the above components. To above-mentioned keep silent 5, briquetting 6, keep silent stationary blade 7, percussion piece 8 and outer tube 9, can adopt the structure among the prior art, the utility model discloses do not describe in detail to this again.

In the following description, the cartridge device is proximal to the end close to the operator and distal to the end remote from the operator. And the clamp feeding direction is taken as a first direction, and the direction opposite to the clamp feeding direction is taken as a second direction. As shown in fig. 1, a plurality of closure clips 1 are sequentially stored inside the clip magazine 2 in a row in the proximal direction, and the openings of the closure clips 1 are uniformly oriented in the clip feeding direction, i.e., in the distal direction of the clip magazine 2. The plurality of closing clamps 1 comprise a closing clamp 14 (closing clamp of a jaw to be entered) positioned at the far end of the clamp cabin 2, a tail closing clamp 15 positioned at the near end of the clamp cabin 2, and closing clamps 1 sequentially arranged and stored between the closing clamp 14 to be entered and the tail closing clamp 15. The closure clip 1, as shown in fig. 2, comprises a substantially U-shaped body, wherein at the closed end of the closure clip 1, a somewhat V-shaped tail 13 is formed, which V-shaped tail 13 is connected to one end of a first clip arm 11 and one end of a second clip arm 12, respectively, the other end of both clip arms being free ends. Preferably, the V-shaped tail 13 of the closure clip 1 may be integrally formed with the first clip arm 11 and the second clip arm 12.

The clamping bin 2 for placing the series of closed clamps 1 comprises a clamping bin bottom plate 21 and a first side wall 22 and a second side wall 23 which vertically extend upwards from two sides of the clamping bin bottom plate 21, wherein the first clamping arm 11 of the closed clamp 1 is approximately attached to the first side wall 22 of the clamping bin 2, and the second clamping arm 12 is approximately attached to the second side wall 23 of the clamping bin 2. In use, the cartridge 2 is adapted to place one or more of the above-mentioned closure clips 1 therein, so that the first 11 and second 12 clip arms of the closure clips 1 are placed axially symmetrically to each other within the cartridge 2. Those skilled in the art will appreciate that the shape, size and configuration of the cartridge 2 may vary depending on the shape, size and configuration of the closure clip 1, or other closure device adapted to be placed therein. In this embodiment, the bottom plate 21 of the cartridge for placing the above-mentioned closing clip 1 is preferably in the shape of an elongated plate, and since the bottom of the closing clip 1 is a flat surface, the top of the bottom plate 21 of the cartridge in contact with the bottom of the closing clip 1 is suitably a flat surface.

As shown in fig. 3 to 5, the transmission member 4 is located inside the magazine 2, placed adjacent to the end closure clip 15, i.e. the distal end of the transmission member 4 can abut against the V-shaped tail 13 of the end closure clip 15 when necessary, to push the end closure clip 15 and thus the remaining closure clips 1, except the to-be-inserted clip closure clip 14, to move distally. Preferably, the distal end of the transmission element 4 is configured and adapted to be adapted to the shape of the V-shaped tail 13 of the closure clip 1, so as to be able to stably push the distal closure clip 15, and thus the series of closure clips 1 stored in line between the to-be-clamped closure clip 14 and the distal closure clip 15, together towards the distal end of the cartridge 2. Thus, the distal end of the transmission member 4 may vary depending on the tail structure of the closure clip 1.

An exemplary transmission 4 is shown in more detail in fig. 5, 6. Although the transmission member 4 may have different configurations and may use different other techniques to drive the closing clip 1 towards the distal end of the cartridge magazine 2, in the present exemplary embodiment the transmission member 4 is a generally strip-shaped sheet-like structure having a distal end and a proximal end, the width of the sheet-like structure being smaller than the width between the first side wall 22 and the second side wall 23 of the cartridge magazine 2, so that the transmission member 4 can move in the proximal-distal direction inside the cartridge magazine 2. Preferably, the width of the transmission element 4 is substantially equal to the width between the first 22 and second 23 side walls of the cartridge 2, so that there is a certain friction between the transmission element 4 and the first 22 and/or second 23 side walls of the cartridge 2, the friction between the transmission element 4 and the inner walls of the cartridge 2 being such as to keep the transmission element 4 to a certain extent still when no movement of the transmission element 4 is required; when the clip pushing piece 4 pushes the to-be-inserted clip closing clip 14 into the jaw, the transmission piece 4 can slide against the friction force between the transmission piece and the inner wall of the clip bin 2, and undesired movement in the directions except the far and near directions can not occur in the sliding process, so that the clip pushing is kept stable. The distal end of the driving member 4 abutting against the distal closing clip 15 located at the proximal end of the clip magazine 2 is provided with a groove as shown in fig. 6, the groove wall of which is an inclined surface coinciding with the closing end of the V-shaped tail 13 or the groove wall of which is U-shaped. Of course, the configuration of the distal end of the transmission element 4 can be varied depending on the configuration of the closure clip 1 to ensure that the transmission element 4 has a certain contact area with the V-shaped tail 13 of the closure clip 1, so that the closure clip 1 is pushed in a stable manner.

Further, the driving member 4 is provided with means for facilitating the distal movement of the driving member 4 in the magazine 2 and preventing the proximal movement of the driving member 4, such means ensuring the pushing and the proper positioning of the closure clip 1 in the magazine 2, allowing the driving member 4 to move only a predetermined distance distally in each pushing. In this embodiment, the transmission member 4 includes a transmission member main body 41, and an elastic pushing member and an elastic stopping member provided on the transmission member main body 41, the elastic pushing member being located at the proximal end of the transmission member main body 41 than the elastic stopping member. Preferably, the driver body 41 is an elongated member having a distal end with an engagement ramp 411 that mates with the closure clip closure tail and a proximal end. The elastic pushing piece and the pushing clamping piece 3 form one-way transmission connection, so that the transmission piece 4 synchronously moves towards the far end when the pushing clamping piece 3 moves towards the far end of the clamping bin. The elastic pushing element may be a pushing spring 42 formed on the transmission element main body 41 as exemplarily shown in fig. 5, and it should be understood that the pushing spring 42 is only used as an exemplary illustration and any structure capable of realizing a one-way transmission connection relationship may be used.

The pushing spring 42 is preferably a preformed elongated cantilever structure with a distal end and a proximal end in a natural state (i.e. when the driving member 4 is taken out from the interior of the magazine 2), and the cantilever structure tilts from the distal end of the driving member body 41 to the proximal end and to the upper side of the driving member body 41, i.e. the pushing spring 42 tilts towards the pushing clip 3 in a direction opposite to the clip feeding direction, forming an included angle with the driving member body 41, and the free end of the cantilever structure forms a tilting end 422 abutting against the pushing clip 3. The push clip 3 also has a unidirectional push slot, which is connected to the push spring 42, especially to the tilting end 422 of the push spring 42 in a unidirectional transmission manner, as will be described in detail below. In use, each time the pushing clip 3 moves to the far end, the one-way pushing groove abuts against the tilting end 422 of the pushing spring 42, so that the transmission member 4 synchronously moves to the far end for a preset distance in the clamping bin. Subsequently, the push clip 3 moves towards the proximal end to reset, and the tilting end 422 of the push clip 42 can be biased by the one-way push groove on the push clip 3 and slides relative to the push clip 3 due to the arrangement of the push spring 42, so that the transmission member 4 does not move towards the proximal end, i.e. does not move towards the proximal end along with the push clip 3. In the present embodiment, the pushing spring 42 may be a structure of a pushing spring, but it should be understood that the pushing spring is not limited to a structure of a spring, and may be other elastic structures suitable for engaging with the unidirectional pushing slot to realize unidirectional transmission.

As described above, the driving member 4 further includes an elastic stopper provided on the driving member body 41, and the elastic stopper may have various structures, such as the stopper elastic piece 43 exemplarily shown in fig. 5, and the stopper elastic piece 43 preferably includes an inclined portion 431, the inclined portion 431 obliquely extends from the middle of the top portion of the driving member 4 in the left-right direction toward at least one side of the top portion of the magazine 2, and a free end thereof forms an abutting end 432 engaged with the top portion of the magazine 2. Further preferably, the stopper elastic piece 43 further includes a horizontal portion 433 which is located on the same horizontal plane as the inclined portion 431 and forms an included angle with each other, the other end of the inclined portion 431 is connected to the horizontal portion 433, and the horizontal portion 433 is located at a far side than the inclined portion 431. Horizontal part 433 is located middle part and the being on a parallel with in the transmission part main part 41 top left and right sides orientation the axis of transmission part main part 41 extends, and it is kept away from the other end of rake 431 for set firmly in the second stiff end 434 at transmission part main part 411 top, stiff end 434 is the T shape setting to this increase and transmission part 4's joint strength guarantees that the whole firm arch of backstop shell fragment 43 sets up in transmission part 4 upper portion, and can form effectual backstop cooperation with the one-way locking groove on pressing from both sides storehouse 2, avoids transmission part 4 to appear undesirable near-end motion. Preferably, the stopping elastic sheet 43 protrudes from the upper surface of the transmission member main body 41, and the height of the stopping elastic sheet 43 can exceed the top of the cartridge 2, so as to ensure that the abutting end 432 tilted toward at least one side of the top of the cartridge 2 of the stopping elastic sheet 43 can be accurately engaged with at least one side of the top of the cartridge 2, and when the push clip 3 moves toward the proximal end of the cartridge 2 to reset, the transmission member 4 does not move toward the proximal end. Meanwhile, although the height of the stopping elastic sheet 43 exceeds the top of the clamping bin 2, it should be understood that the height of the stopping elastic sheet 43 is set so that the stopping elastic sheet 43 does not interfere with the movement of the pushing and clamping piece 3 positioned at the top of the clamping bin 2, and the pushing and clamping piece 3 can be stably pushed to the far end of the clamping bin 2 and reset to the near end of the clamping bin 2.

Figures 1 and 7 show schematically the pusher jaw 3 at the top of the magazine 2 for pushing the inner most distal jaw closure 14 to be entered into the pliers, while also driving the drive member 4 distally towards the magazine 2. In use, the push jaw 3 directly engages and pushes into the jaws only the distal most jaw closure 14 inside the cartridge 2. As shown, the push-clip 3 has a generally elongated shape with proximal and distal ends. The proximal end of the push-clip 3 is adapted to be drivingly connected to an actuating member of the clip applier (which is not described in detail in the prior art), and the distal end of the push-clip 3 is drivingly connected to the distal-most closed clip 14 of the clip to be inserted, so that the push-clip 3 moves a predetermined distance toward the distal end of the clip magazine 2 each time the actuating member is actuated, thereby ensuring that one closed clip 1 is pushed into the jaw 5.

As mentioned above, the pushing clip 3 is provided with a unidirectional pushing groove corresponding to the elastic pushing element of the transmission element 4 and forming a unidirectional transmission connection with the elastic pushing element. In this embodiment, as shown in fig. 7, the one-way push slot is opened at the bottom of the push-clip piece 3 for engaging with the push spring 42 disposed on the transmission member 4. The number of one-way push slots 31 is variable, but in an exemplary embodiment the push jaw piece 3 has a number of one-way push slots 31 that corresponds to or is greater than the number of closure clips 1 that the cartridge 2 is placed on, and more preferably the number of one-way push slots 31 is one greater than the number of closure clips 1. By way of non-limiting example, the pusher-jaw piece may include 22 one-way pusher slots 31 formed therein for pushing 21 closure jaws pre-arranged within the jaw magazine. Such a construction allows the pusher jaw piece 3 to push the transmission member 21 times, thereby pushing 21 closure clips 1 into the jaws for use. The one-way push grooves 31 are also preferably arranged at equal intervals from each other to ensure that the driving member 4 can be engaged and pushed by the push jaw 3 each time the push jaw 3 is pushed.

Preferably, the proximal end wall of the one-way push groove 31 is a push wall 32, and the distal end wall of the one-way push groove is an inclined wall 33 inclined towards the distal end; the pushing elastic sheet 42 is located in one of the plurality of one-way pushing grooves 31 in a natural state, when the pushing clip 3 moves towards the far end of the clip chamber 2, the near end wall of the one-way pushing groove 31 and the pushing elastic sheet 42 form a same-direction pushing transmission, that is, the tilting end 422 of the pushing elastic sheet 42 is engaged in one of the one-way pushing grooves 31 and abuts against the near end wall in the engaged one-way pushing groove 31, so that when the pushing clip 3 moves towards the far end, the transmission member 4 moves towards the far end synchronously due to the abutting of the tilting end and the near end wall. After the clip 3 finishes the primary clip feeding, when moving to the near end of the clip bin 2 for resetting, the tilting end 422 of the clip 42 is pushed to be separated from the state of abutting with the near end wall, and slides along the far end wall of the one-way push slot 31 until the two are separated from each other and enter the next one-way push slot 31.

Fig. 8 shows only a preferred embodiment of the one-way push groove 31, wherein the first one-way push groove located at the most proximal end of the push jaw piece 3 is denoted by reference numeral 311, and in the distal direction, adjacent to the first one-way push groove 311 is a second one-way push groove 312, and so on, adjacent to the second one-way push groove in the distal direction is a third one-way push groove 313. In fig. 4, the proximal end wall of the one-way push groove 31 is the push wall 32, and extends vertically downward, however, it should be understood by those skilled in the art that the proximal end wall may also be disposed at an angle to the vertical plane, such as the bottom of the proximal end wall being more distal than the top of the proximal end wall, and the angle is preferably less than 90 °, and the greater the angle, the better the abutting engagement, and the smaller the angle, even close to the vertical plane, the less difficult the processing, in case of ensuring that the tip 422 of the push spring 42 enters the one-way push groove 31 and is engaged. Compared with the pushing wall 32, the included angle between the far end wall of the one-way pushing groove 31 and the vertical plane is larger to form a mild inclined wall 33 which enables the tilting end 422 of the pushing elastic sheet 42 to slide along the far end wall, so that when the pushing clip 3 moves towards the near end to reset, the pushing elastic sheet 42 can be separated from the originally jointed one-way pushing groove 31 with smaller pushing force and slide into the next one-way pushing groove 31 in the far end direction.

According to the present embodiment exemplarily shown in fig. 5, the cartridge 2 includes a cartridge bottom plate 21 and a first side wall 21 and a second side wall 22 respectively extending upward from the left and right sides of the cartridge bottom plate 21, in the present embodiment, the first side wall 21 and the second side wall 22 are preferably perpendicular to the cartridge bottom plate 21 to be attached to the first clamping arm 11 and the second clamping arm 12 of the closing clip 1, and at the same time, a certain friction force is formed to prevent the closing clip 1 from moving in the left and right directions inside the cartridge 2. Preferably, a side top wall 24 extending substantially parallel to the cartridge bottom plate 21 is provided at the top of one of the side walls of the cartridge 2, and the side top wall 24 and the stop spring 43 of the driving member 4 are substantially located at the same horizontal plane, and more preferably, the height of the stop spring 43 may be slightly higher than that of the side top wall 24, so as to ensure that the stop spring 43 is engaged with a one-way stop groove formed in the side top wall 24, and to prevent the driving member 4 from undesired movement toward the proximal end of the cartridge 2. The one-way retaining grooves provided on the side top wall 24 of the cartridge 2 may have different configurations, one of which is shown in the present embodiment by way of example; the open notch level of this one-way locking groove 25 is towards the middle part of pressing from both sides storehouse top left and right sides direction to do benefit to the whole backstop shell fragment 43 that sets up in driving medium 4, from the middle part of driving medium 4, the level is towards pressing from both sides storehouse 2 side roof 24 perk and gets into one-way locking groove 25 in. Wherein the one-way stop groove 25 is a stop wall 251 at a proximal end wall, and a slide-out wall 252 adapted to stop the sliding of the spring 43 to enter the next one-way stop groove 25 in the distal direction. The stopping elastic sheet 43 is located in one-way stopping groove 25 in a natural state, in the process that the pushing and clamping piece 3 moves towards the far end of the clamping bin 2, due to the one-way transmission connection between the transmission piece 4 and the pushing and clamping piece 3, the transmission piece 4 moves towards the far end along with the pushing and clamping piece 3, at the moment, the sliding-out wall 252 forms bias pressure on the abutting end 432 of the stopping elastic sheet 43, and along with the further movement towards the far end of the transmission piece 4, the abutting end 432 is separated from the original one-way stopping groove 25 in a sliding manner, and enters the next one-way stopping groove 25 towards the far end and is jointed with the next one-way stopping groove 25; when the clip 3 moves towards the proximal end of the cartridge 2, the stopping wall 251 of the one-way stopping groove 25 and the abutting end 432 of the stopping elastic sheet 43 form an abutting stop to prevent the transmission member 4 from sliding towards the proximal end of the cartridge 2.

Those skilled in the art should understand that the arrangement of the stop spring 43 on the transmission member 4 is not limited, and the one-way stop groove 25 is formed on the top wall 24 on the side of the cartridge 2; the transmission member 4 may also be provided with a one-way stopping groove 25, and the top wall 24 on the side of the cartridge 2 is provided with a stopping spring sheet 43. When the one-way stop groove 25 is provided on the transmission member 4, it can be understood that the proximal end wall of the one-way stop groove 25 is adjusted to be a slide-out wall adapted to the elastic stopper 42 to slide, and the distal end wall may be a stopper wall, and the elastic stopper should be provided in plurality. At this time, one elastic stopper 42 is naturally located in the one-way stopping groove 25 on the transmission member 4, when the push clip moves towards the far end of the cartridge 2, the one-way stopping groove 25 slides along the elastic stopper 42 until the two are separated and is engaged with the next one-way stopping groove 25 and the stopping elastic sheet 43, when the push clip 3 moves towards the near end of the cartridge 2, the stopping wall 251 of the one-way stopping groove 25 and the stopping elastic sheet 43 form abutting stopping to prevent the transmission member 4 from sliding towards the near end of the cartridge 2.

Further preferably, in order to ensure that the driving member 4 can keep the stopping elastic sheet 43 and the currently engaged one-way stopping groove 25 still in an engaged state when the push jaw 3 moves towards the proximal end of the cartridge 2 for resetting, the arrangement of the stopping structure can be added on the driving member 4 and the cartridge 2. For example, on the top end of the first side wall 22 and the second side wall 23 of the cartridge 2, a side top wall 24 extending substantially parallel to the cartridge bottom plate 21 is extended perpendicularly to the side walls, and on the two side top walls 24, one-way stopping grooves 25 are symmetrically formed, preferably, the one-way stopping grooves 25 formed on the two side top walls 24 are equally spaced, so that during each pushing of the closing clip 1 into the jaws by the pushing-clamping piece 3, the stopping elastic piece 43 of the driving piece 4 slides out of one-way stopping groove 25 and enters the next one-way stopping groove 25 after sliding a predetermined distance in the distal direction of the cartridge 2. Correspondingly, the arrangement of the stop elastic pieces 43 can be increased, wherein one stop elastic piece 43 is in abutting joint with the one-way stop groove 25 arranged on the side top wall 24 of the first side wall 22, and the other stop elastic piece 43 is in abutting joint with the one-way stop groove 25 arranged on the side top wall 24 of the second side wall 23. Alternatively, only one stopping elastic sheet 43 is provided, the stopping elastic sheet 43 may include a horizontal portion 43 and inclined portions 44 extending leftwards and rightwards from the horizontal portion 43 to form an inclined portion, i.e. one of the inclined portions 44 extends towards the first sidewall 22 to form one abutting end 432, and the other inclined portion 44 extends towards the second sidewall to form the other abutting end 432, such stopping elastic sheet 43 is integrally "Y" shaped (not shown), so that the forces applied to the left and right sides of the driving member 4 in the width direction thereof are balanced, and the pushing-clamping piece 3 can move towards the proximal end of the cartridge 2 to be reset in a more stable manner with less resistance, while the driving member 4 is kept in a state of being engaged with the current one-way stopping groove 25.

As explained previously, instead of using the push spring 42, the stop spring 43 and the one-way push groove 31, the one-way stop groove 25, various other components can be used to control the movement of the transmission member 4 within the magazine 2.

Example 2

In embodiment 1, the elastic pushing element and the elastic stopping element on the transmission element 4 are both disposed on the top of the transmission element 4, and in this embodiment, the structure of another preferable transmission element 4 is exemplarily shown, and in this embodiment, the same points as those in embodiment 1 will not be described again.

The main difference between this embodiment and embodiment 1 is that the elastic pushing member and the elastic stopping member are respectively disposed at the top and the bottom of the transmission member. For example, the stopping elastic sheet 43 is disposed at the bottom of the transmission member 4, in this embodiment, the stopping elastic sheet 43 disposed at the bottom of the transmission member 4 may be the same as the elastic pushing member disposed at the top of the transmission member 4, that is, the stopping elastic sheet 43 is also formed to tilt from the proximal end of the transmission member 4 to the lower side of the transmission member 4 to abut against the one-way stopping groove 25 formed on the bottom plate 21 of the cartridge. The unidirectional stopping groove 25 is arranged in the middle of the clamping bin bottom plate 21 in the left-right direction, a plurality of unidirectional stopping grooves 25 are arranged at equal intervals, the near end wall of each unidirectional stopping groove 25 is a stopping wall, and the far end wall is suitable for stopping the elastic sheet 43 from sliding to enter the next unidirectional stopping groove 25. The middle part of the left and right directions of the clamping bin bottom plate 21 is provided with a plurality of one-way stop grooves 25 and a stop spring plate 43 which are connected in a butting manner and stopped along the clamping direction, so that the transmission part 4 can be prevented from moving towards the near end, the clamping piece can be pushed to clamp, and the clamping is more stable.

It should be understood that the above description of the embodiments of the present invention is only for illustrating the technical lines and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, but the present invention is not limited to the above specific embodiments. All changes and modifications that come within the scope of the claims are to be embraced within their scope.

Claims (10)

1. A transmission piece is characterized by comprising a transmission piece main body, an elastic pushing piece and an elastic stopping piece, wherein the elastic pushing piece and the elastic stopping piece are arranged on the transmission piece main body;

the elastic pushing piece can be in transmission connection with a pushing clamping piece of the clip applier in a first direction;

the elastic stopping piece can be matched with the top of the clip bin of the clip applier, so that when the pushing clip piece moves towards a second direction opposite to the first direction, the transmission piece does not move towards the second direction along with the pushing clip piece.

2. Transmission according to claim 1,

the elastic pushing piece is a pushing elastic sheet arranged on the transmission piece main body, and the pushing elastic sheet tilts towards the upper side of the transmission piece main body along the second direction.

3. A transmission member according to claim 2,

the push spring plate is of a cantilever structure with a far end and a near end, the far end is a first fixed end of the push spring plate, and the near end is a tilting end of the push spring plate.

4. Transmission member according to claim 1,

the elastic stop piece is a stop elastic piece arranged at the top of the transmission piece, the stop elastic piece comprises an inclined part, the inclined part at least obliquely extends towards the left side or the right side from the middle part in the left-right direction of the top of the transmission piece main body, and the free end of the inclined part forms a butt end capable of being matched with the top of the clamping bin.

5. Transmission member according to claim 4,

the stop elastic sheet further comprises a horizontal part which is located on the same horizontal plane with the inclined part and is arranged at an included angle, the other end of the inclined part is connected with the horizontal part, and the horizontal part is located on the far side compared with the inclined part.

6. Transmission according to claim 5,

the horizontal part is located the ascending middle part in driving medium top left and right sides and be on a parallel with the axis of driving medium extends, and it keeps away from the other end of rake is for setting firmly in the second stiff end at driving medium main part top, the second stiff end is the setting of T shape.

7. Transmission according to claim 1,

the transmission piece main body is an elongated component with a far end and a near end, and the far end is provided with an inclined wall capable of being matched with the closed tail of the closed clamp;

the elastic pushing piece is located on the near side of the transmission piece main body compared with the elastic stopping piece.

8. A cartridge device comprising a cartridge housing a plurality of closure clips, a jaw connected to a distal end of the cartridge housing, and a push-clip inserted into the cartridge housing; it is characterized in that the preparation method is characterized in that,

further comprising a transmission according to any of claims 1-7, said transmission being at least partially located in said cartridge,

the push-clip piece is capable of pushing a distal-most closure clip into the jaws when moving in the first direction;

the elastic pushing piece and the pushing clamping piece are in transmission connection in the first direction;

the elastic stopping piece is matched with the top of the clip bin of the clip applier so as to prevent the transmission piece from moving towards the second direction when the clip pushing piece moves towards the second direction;

wherein the first direction is a clip feeding direction.

9. The cartridge device of claim 8,

the bottom of the pushing clamping piece is provided with a plurality of one-way pushing grooves which are in transmission connection with the elastic pushing piece in the first direction and are arranged in the far and near directions;

the near-end wall of the one-way push groove is a push wall, and the far-end wall of the one-way push groove is an inclined wall inclined towards the far end;

the elastic pushing piece is located in one unidirectional pushing groove in a natural state, when the pushing clamping piece moves towards the far end of the clamping bin, the near end wall of the unidirectional pushing groove and the elastic pushing piece form same-direction pushing transmission, and when the pushing clamping piece moves towards the near end of the clamping bin, the elastic pushing piece slides along the far end wall of the unidirectional pushing groove until the elastic pushing piece and the far end wall of the unidirectional pushing groove are separated and enter the next unidirectional pushing groove.

10. The cartridge device of claim 8,

at least one side of the top of the clamping bin is provided with a one-way stop groove matched with the elastic stop piece;

the stop wall of the one-way stop groove is used for being abutted against the tilting end of the elastic stop piece;

when the clamping pushing piece moves towards the far end of the clamping bin, the elastic stopping piece is separated from the one-way stopping groove and enters the next one-way stopping groove;

when the clamping pushing piece moves towards the near end of the clamping bin, the tilting end of the elastic stopping piece is abutted against the stopping wall of one-way stopping groove to stop the transmission piece.

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