CN213156189U

CN213156189U - Adapter for clip applier and clip applier

Info

Publication number: CN213156189U
Application number: CN202022057087.XU
Authority: CN
Inventors: 徐荣华
Original assignee: Suzhou IntoCare Medical Technology Co Ltd
Current assignee: Suzhou IntoCare Medical Technology Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-05-11
Anticipated expiration: 2030-09-18

Abstract

The utility model belongs to the technical field of medical instrument, especially, relate to an adapter and execute clamp for executing clamp. The clip applier comprises a clip bin assembly and an adapter, a locking structure is arranged in the clip bin assembly, the adapter comprises an adapter shell and a locking mechanism, an operating piece on the adapter shell moves towards the proximal direction under the action of external force towards the proximal direction, and the locking mechanism can allow the clip bin assembly of the clip applier to be inserted into the adapter shell and pulled out of the adapter shell; when the external force towards the proximal direction disappears, the locking mechanism enables the operating piece to move to the original position towards the distal direction, and can be matched with the locking structure on the cartridge chamber component, so that the cartridge chamber component is locked in the adapter. The adapter also includes a drive shaft in the adapter housing and a drive mechanism coupled to the drive shaft for driving the drive shaft in rotation and/or axial movement. Therefore, the clamping bin assembly is convenient to mount and dismount and has a fool-proof effect.

Description

Adapter for clip applier and clip applier

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to an adapter and execute clamp for executing clamp.

Background

Surgical clip appliers are commonly used to clip tubular tissue during surgery, thereby avoiding fluid seepage within the tubular tissue.

In the prior art, clip magazine assemblies of clip appliers are removably mounted to and communicate with adapters of the clip appliers, which identify clip information within the clip magazine assembly for performing corresponding procedural actions. When the bin clamping assembly and the adapter are mounted and dismounted, the connecting part of the adapter and the bin clamping assembly is complex in structure, so that the bin clamping assembly is inconvenient to mount and dismount, and further inconvenient to operate by a user, and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problems in the prior art, the utility model provides an adapter and execute clamp for executing clamp makes installation and dismantlement (plug promptly) between pressing from both sides storehouse subassembly and adapter convenient, has the slow-witted effect of preventing.

(II) technical scheme

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

one aspect of the present invention provides an adapter for a clip applier, the adapter for a clip applier comprising an adapter housing, the adapter housing comprising an operating member movable in a proximal-distal direction; the adapter further comprises a locking mechanism disposed within the adapter housing; the operating member moves towards the proximal direction to an unlocking position under the action of external force towards the proximal direction, and the locking mechanism is prompted to allow the clip bin assembly of the clip applier to be inserted into the adapter shell and pulled out of the adapter shell; when the external force towards the proximal direction disappears, the locking mechanism enables the operating piece to move to the original position towards the distal direction and can be matched with the locking structure of the cartridge assembly, so that the cartridge assembly is locked in the adapter; the adapter also includes a drive shaft in the adapter housing and a drive mechanism coupled to the drive shaft for driving the drive shaft in rotation and/or axial movement.

Preferably, the adapter housing includes a main body housing and a rotary housing rotatably connected to the main body housing; the rotating shell comprises a far-end rotating shell and a near-end rotating shell which are connected in a separable mode, the near-end rotating shell serves as an operating piece, and the position of the near-end rotating shell is the position where the near-end rotating shell is connected with the far-end rotating shell; or the rotating shell is provided with an operation part which can move far and near, and the operation part is used as an operation piece.

Preferably, the adapter for the clip applier further comprises a guide ring extending into the rotary housing from a proximal end of the rotary housing, the proximal end of the guide ring being connected to the body housing; the guide ring and the rotary shell are provided with a guide part, and the guide part forms bidirectional automatic guide to the bin clamping component in the process of inserting the bin clamping component into the rotary shell; the locking mechanism and the locking structure can be matched on the basis of bidirectional automatic correction.

Preferably, the locking mechanism comprises slots arranged at the far ends of the guide ring and the rotating shell and used for being connected with plug connectors on the cartridge assembly to form circumferential locking; the guide ring and the guide part of the rotary shell are arranged in guide grooves at the far ends of the guide ring and the rotary shell, and the guide grooves start to extend along the circumferential direction from one position of the far end surface and gradually increase in depth to the connecting slot in the extending process.

Preferably, the locking mechanism further comprises a locking ring, a limiting member, an elastic member and a locking member; the locking ring is adjacent to the near-end rotating shell/operating part and is slidably sleeved on the guide ring, the limiting piece is fixed on the outer side of the guide ring, and the elastic piece is sleeved on the outer side of the guide ring and forms axial limiting on the locking ring together with the limiting piece; the locking piece is arranged on the guide ring; when the locking ring is acted by external force towards the proximal direction of the proximal rotating shell/operating part: the locking ring moves towards the proximal direction to cause the locking element to unlock the cartridge assembly and the locking ring compresses the resilient member; when the external force action on the locking ring disappears: the elastic piece enables the locking ring to move towards the far end direction and the locking ring enables the near end rotating shell/operation part to move towards the far end direction until the locking ring abuts against the limiting part, at the moment, the near end rotating shell is connected with the far end rotating shell/operation part is located at the original position, and the locking ring enables the locking piece to be capable of forming at least axial locking with the locking groove of the cartridge assembly.

Preferably, one locking piece or at least two locking pieces are uniformly arranged in one circumference, an auxiliary locking structure used for being matched with an auxiliary locking mechanism in the clamping bin assembly is arranged on the guide ring, and the auxiliary locking mechanism and the auxiliary locking structure can be matched on the basis of bidirectional automatic guiding; or locking pieces are arranged in a plurality of circumferences, wherein one locking piece is arranged in each circumference or at least two locking pieces are uniformly arranged; wherein, the locking piece is the locking pearl, be equipped with the mounting hole that holds the locking pearl on the guide ring, the diameter of mounting hole in the inner wall department of guide ring is less than its diameter in the outer wall department of guide ring, the diameter of locking pearl is located between the both ends diameter of mounting hole, the internal surface of locking ring includes the support that connects along far and near direction and presses anchor ring and annular inclined plane, annular inclined plane outwards inclines along the direction of far-end direction, when the locking ring supports and leans on the locating part, the outer end of locking pearl supports and presses on the anchor ring, the locking ring removes to the locking pearl when breaking away from the anchor ring towards near-end direction, the locking pearl outwards moves when receiving outside exogenic action.

Another aspect of the present invention provides a clip applier, comprising a clip chamber assembly and the above adapter; a locking structure is arranged in the bin clamping component; when the operating piece moves towards the proximal direction under the action of external force towards the proximal direction, the cartridge assembly can be inserted into the adapter shell and pulled out of the adapter shell; when the external force towards the proximal direction disappears, the locking mechanism is matched with the locking structure, so that the cartridge assembly is locked in the adapter shell; the bin clamping assembly further comprises a bin clamping shell and a bin clamping shaft located in the bin clamping shell, when the bin clamping assembly is plugged in and pulled out of the adapter, the bin clamping shaft is located at an initial position, the driving shaft is located at an initial position, and the bin clamping shaft and the driving shaft are connected in a spaced mode or in an axially separable mode.

Preferably, the cartridge assembly comprises a locking structure and an auxiliary locking mechanism, the locking structure cooperates with the locking mechanism of the adapter, and the auxiliary locking mechanism cooperates with the auxiliary locking structure in the adapter to form double locking; the auxiliary locking mechanism and the auxiliary locking structure lock the cartridge assembly in the adapter housing when the cartridge assembly is inserted in place; the process that the cartridge assembly moves towards the far end direction due to the external force action towards the far end direction can cause the auxiliary locking mechanism and the auxiliary locking mechanism to be disengaged.

Preferably, the cartridge assembly comprises a cartridge housing, the cartridge housing comprises a cartridge fixing housing and a cartridge rotating housing which are rotatably connected together, an identification signal generating structure is arranged at the near end of the cartridge fixing housing, a fixed identification signal receiver is arranged in the adapter, and the identification signal receiver is in communication connection with the identification signal generating structure; the adapter housing comprises a main body housing and a rotary housing, and the rotary housing is rotatably connected with the main body housing; through the matching of the locking mechanism and the locking structure, the clamping bin fixing shell and the guide ring can be selectively locked, and the clamping bin rotating shell and the rotating shell can be selectively locked; the auxiliary locking mechanism is matched with an auxiliary locking structure on the guide ring, and the clamping bin fixing shell and the guide ring are locked when the clamping bin assembly is inserted in place.

Preferably, the auxiliary locking mechanism comprises an elastic ring positioned in a groove on the inner wall of the cartridge fixing shell and one or at least two elastic buckles connected to the elastic ring; the auxiliary locking structure is one or at least two positioning holes arranged on the inner wall of the guide ring, and the elastic buckle penetrates through a through hole on the clamping bin fixing shell to be jointed with the positioning holes.

Preferably, the locking structure comprises a locking groove arranged on the outer surface of the cartridge fixing shell, and the locking groove is locked with the locking bead; the locking structure also comprises a plug connector arranged on the clamping bin fixing shell, the plug connector is inserted into the slot on the guide ring, and the plug connection of the plug connector and the slot also forms circumferential locking of the clamping bin fixing shell and the guide ring; the locking structure also comprises a plug connector arranged on the clamping bin rotating shell, the plug connector is inserted into a slot on the rotating shell, and the plug connector and the slot are inserted to form circumferential locking on the clamping bin rotating shell and the rotating shell; the axial distance between the plug connector on the clamping bin fixing shell and the plug connector on the clamping bin rotating shell is larger than the axial distance between the slot on the guide ring and the slot on the rotating shell.

(III) advantageous effects

The utility model has the advantages that:

the utility model discloses an adapter for executing clamp ware, the operating parts towards near-end direction pulling adapter shell can make locking mechanical system not constitute the restriction to the plug that presss from both sides the storehouse subassembly, presss from both sides the storehouse subassembly plug this moment freely, inserts the adapter at pressing from both sides the storehouse subassembly after, the pulling force of cancellation towards near-end direction alright make and press from both sides storehouse subassembly and adapter locking. Therefore, the clamping bin assembly is convenient to mount and dismount (plug) and convenient to operate by a user, and the working efficiency is improved. Meanwhile, the clamping bin assembly cannot be pulled out from a non-mounting position, so that the clamping bin assembly can be prevented from being plugged and pulled wrongly, adverse consequences are caused, the fool-proof effect is achieved, and the safety and the reliability of a user are improved.

The utility model provides a execute the clamp ware makes the installation and the dismantlement (plug promptly) of pressing from both sides the storehouse subassembly convenient, and convenient to use person's operation, and then has improved work efficiency. Meanwhile, the clamping bin assembly cannot be pulled out from a non-mounting position, so that the clamping bin assembly can be prevented from being plugged and pulled out mistakenly, and the fool-proof effect is achieved.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of a clip applier provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the clip applier of FIG. 1;

FIG. 3 is an enlarged view of B of FIG. 2, with the adapter and cartridge assembly locked;

FIG. 4 is an enlarged view of the alternate state B of FIG. 2, with the adapter and cartridge assembly unlocked;

FIG. 5 is a schematic structural view of a clip cartridge assembly in the clip applier of FIG. 1;

FIG. 6 is a schematic cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view of an end portion of the cartridge retaining housing of FIG. 5;

FIG. 8 is a schematic structural view of an adapter in the clip applier of FIG. 1;

FIG. 9 is a schematic end view of a guide ring in the adapter;

fig. 10 is a schematic partial cross-sectional view of clip applier embodiment 2 provided by the invention.

[ description of reference ]

1: a cartridge assembly; 11: a cartridge housing; 111: the clamping bin is fixed on the shell; 1111: a first connector; 1112: a locking groove; 1113: snapping; 1114: an elastic ring; 1115: a bin clamping shaft; 1116: identifying an information storage chip; 11161: a Pin needle; 1117: a mushroom-shaped snap; 1118: an elastic seat; 112: a clamping bin rotating shell; 1121: a second plug connector; 12: a rod body; 13: an end effector; 2: an adapter; 21: rotating the housing; 211: a distal rotating shell; 212: a proximal rotation housing; 2121: a locking ring; 21211: an annular bevel; 21212: pressing the ring surface; 2122: a limiting member; 2123: an elastic member; 2124: a guide ring; 2125: a locking member; 2126: positioning holes; 2127: a first slot; 2128: a first guiding part; 22: a main body housing; 221: a drive shaft.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings. In the description of the present invention, the term "far" refers to the side close to the patient, and "near" refers to the side close to the operator; the circumferential direction mentioned in the description of the utility model is the direction perpendicular to the axis of the clamping bin assembly and the adaptation.

Example 1

As shown in fig. 1-9, the present embodiment provides a clip applier that includes a clip cartridge assembly 1 and an adapter 2.

As shown in fig. 1 and 5, the cartridge assembly 1 includes a cartridge housing 11, a rod 12, and an end effector 13.

In this embodiment, the cartridge housing 11 is configured as two shells that rotate relatively, that is, the cartridge housing 11 includes a cartridge fixing shell 111 and a cartridge rotating shell 112, the cartridge rotating shell 112 is rotatably connected to the distal end of the cartridge fixing shell 111, and the proximal end of the cartridge fixing shell 111 is provided with an identification signal generating structure for establishing communication with an identification signal receiver fixedly disposed in the adapter 2. A holding cavity communicated with each other is arranged in the cartridge fixing shell 111 and the cartridge rotating shell 112. In this embodiment, the cartridge fixing housing 111 and the cartridge rotating housing 112 are both rotational bodies, and the axes of the two rotational bodies are coincident. Preferably, the cartridge fixing housing 111 and the cartridge rotating housing 112 are formed by two housings which are symmetrically spliced and fixed by clamping, so that the cartridge fixing housing 111 and the cartridge rotating housing 112 can be conveniently mounted and dismounted. It will be appreciated that the components of the clip magazine assembly 1 that need to rotate during operation of the clip applier are fixedly connected to the clip magazine rotating housing 112, and the remaining components that need not rotate are fixedly connected to the clip magazine fixing housing 111 (the fixed connection is not limited to a non-detachable connection, but refers to a relatively stationary connection during operation).

As shown in fig. 1, 2, 3, 4 and 8, the adapter 2 includes an adapter housing, the adapter housing includes a rotary housing 21 and a main housing 22, the main housing 22 is a part that does not rotate when the clip applier operates, and the rotary housing 21 is rotatably connected to the main housing 22 for driving the clip magazine assembly 1 to rotate wholly or partially. Preferably, the rotary housing 21 is a rotary body, and the axes of the two are coincident.

As shown in fig. 1 to 4 and 8, the rotating housing 21 includes a distal rotating shell 211 and a proximal rotating shell 212, and the distal rotating shell 211 and the proximal rotating shell 212 are detachably connected. When the distal rotation housing 211 and the proximal rotation housing 212 are coupled, the proximal rotation housing 212 is in a locked position (shown in fig. 3); the proximal rotating shell 212 moves in the proximal direction by an external force in the proximal direction, separates from the distal rotating shell 211, and moves to an unlocking position a distance further back (as shown in fig. 4, i.e., fixed point unlocking). The distal and

proximal rotation housings

211 and 212 each have a cavity formed therein that communicates to form a receiving cavity of the rotation housing 21 for receiving the cartridge assembly 1, a locking mechanism (described in detail below), and other conventional components of the adapters that are typically disposed therein. In this embodiment, the distal rotating shell 211 and the proximal rotating shell 212 are formed by splicing and clamping two symmetrical split shells, so that the distal rotating shell 211 and the proximal rotating shell 212 can be conveniently mounted and dismounted. And the distal rotating shell 211 and the proximal rotating shell 212 are both solids of revolution and their axes coincide.

Further, as shown in fig. 1 to 4, the distal end of the proximal rotating shell 212 is connected to the distal rotating shell 211, and the proximal end of the proximal rotating shell 212 is fitted over the distal outer side of the main body housing 22. At least one pair of insertion parts which are matched with each other are arranged at the joint of the distal rotating shell 211 and the proximal rotating shell 212, preferably, the joint of the distal rotating shell 211 and the proximal rotating shell 212 is a tooth-shaped insertion part, that is, teeth of the distal rotating shell 211 can be inserted into grooves formed by two adjacent teeth of the proximal rotating shell 212, and finally, circumferential fixation of the distal rotating shell 211 and the proximal rotating shell 212 is realized, so that the distal rotating shell 211 and the proximal rotating shell 212 can rotate together during insertion and can be separated in the axial direction. Wherein, can select cylindrical tooth or face tooth. The tooth-shaped opposite insertion parts are arranged, so that the far-end rotating shell 211 and the near-end rotating shell 212 are automatically aligned.

In addition, the outer surfaces of the distal rotating shell 211 and the proximal rotating shell 212 are connected to form a smooth pear-shaped arc surface, and the outer surface of the proximal rotating shell 212 protrudes relative to the outer surface of the distal rotating shell 211, so that the outer surface is convenient for an operator to hold. On the basis that the outer surfaces of the distal rotating shell 211 and the proximal rotating shell 212 are connected to form a smooth pear-shaped arc surface, the outer surface of the proximal rotating shell 212 may be further provided with a protruding protrusion, which is convenient for an operator to pull the proximal rotating shell 212 towards the proximal direction.

As shown in fig. 3 and 6, the cartridge rotary housing 112 is partially inscribed in the distal rotary housing 211, the exposed portion of the cartridge rotary housing 112 serves as a visible housing, the visible housing of the cartridge rotary housing 112 is shaped into an ergonomic arc for facilitating the grasping and mounting of the cartridge housing 11, and preferably, the visible housing of the cartridge rotary housing 112 has an arc-shaped edge.

In the present embodiment, the selectable circumferential locking of the cartridge rotating housing 112 and the distal rotating housing 211 and the selectable locking (including the axial locking and the circumferential locking) between the cartridge fixing housing 111 and the main housing 22 are realized by the cooperation of the locking structure provided in the cartridge assembly 1 and the locking mechanism provided in the rotating housing 21, and the axial locking between the main housing 22 and the cartridge fixing housing 111 indirectly forms the axial locking of the cartridge rotating housing 112 and the main housing 22 due to the circumferentially rotatable but axially fixed connection between the cartridge fixing housing 111 and the cartridge rotating housing 112.

Of course, the above arrangement is that since the proximal rotation housing 212 is larger than the distal rotation housing 211 for easy grasping, there is more sufficient space in the proximal rotation housing 212 to arrange the mechanism for achieving axial locking, but according to the description of the present embodiment, one skilled in the art can easily conceive of shifting the mechanism for achieving axial locking to the distal rotation housing 211, and achieving axial locking between the distal rotation housing 211 and the cartridge rotation housing 112.

Specifically, the locking mechanism is linked with the proximal rotating shell 212, and under the action of an external force in the proximal direction, the proximal rotating shell 212 moves from the locking position to the unlocking position in the proximal direction and stores the force of the locking mechanism; when the external force in the proximal direction is removed, the proximal rotary shell 212 can be moved to the locking position in the distal direction by the power of the locking mechanism. In the unlocking position, the locking mechanism releases the limit on the path of the clip bin assembly 1 of the clip applier entering and exiting the rotary shell 21, namely the limit is not formed on the entering and exiting of the clip bin assembly 1, and the clip bin assembly 1 can freely enter and exit the accommodating cavity of the rotary shell 21; in the locking position, the locking mechanism locks the cartridge assembly 1 in the accommodating cavity of the rotating shell 21 (not limited to being directly connected with the rotating shell 21), i.e. the cartridge assembly 1 is locked circumferentially and locked axially, the cartridge assembly 1 cannot be inserted and pulled out, and meanwhile, the proximal rotating shell 22 is connected with the distal rotating shell 211, and the two can rotate together. Thus, proximal rotation housing 212 moves in the proximal direction under an external force in the proximal direction, causing the locking mechanism to allow insertion and withdrawal of clip cartridge assembly 1 of the clip applier into and out of rotation housing 21; upon the above-mentioned removal of the external force in the proximal direction, the locking mechanism causes the proximal rotation housing 212 to move in the distal direction to be connected to the distal rotation housing 211, and the locking mechanism is capable of cooperating with the locking structure to lock the cartridge assembly 1 in the adapter 2. When the cartridge assembly 1 is locked in the adapter 2, the cartridge assembly 1 will rotate under the driving of the adapter 2, and the method is applicable to the embodiment in which the cartridge assembly 1 rotates as a whole, and also applicable to the embodiment in which a part of the cartridge assembly 1 rotates as in this embodiment, as long as the working task of the cartridge assembly 1 can be completed.

To sum up, through the linkage of a part of the rotating shell 21 (in this embodiment, the proximal rotating shell) and the locking mechanism, the part of the rotating shell 21 is pulled towards the proximal direction to the unlocking position, so that the locking mechanism does not limit the insertion and extraction of the cartridge assembly 1, at this time, the cartridge assembly 1 is freely inserted and extracted, and after the cartridge assembly 1 is inserted into the adapter 2, the cartridge assembly 1 and the adapter 2 can be locked by canceling the pulling force towards the proximal direction. Therefore, the clamping bin assembly 1 is convenient to mount and dismount (plug), and convenient to operate by a user, so that the working efficiency is improved. Meanwhile, the clamping bin assembly 1 cannot be pulled out from a non-installation position, so that the clamping bin assembly 1 can be prevented from being plugged and pulled wrongly, bad results are caused, the fool-proof effect is achieved, and the safety and the reliability of a user are improved.

In this embodiment, as shown in fig. 3, the adaptor 2 further comprises a guide ring 2124, wherein the guide ring 2124 extends from the proximal end of the rotary housing 21 into the accommodating cavity of the rotary housing 21, and is located at the proximal portion of the cavity of the distal rotary shell 211 and the cavity of the proximal rotary shell 212, and the guide ring 2124 is located inside the distal end of the main body housing 21, and the proximal end of the guide ring 2124 is fixedly connected to the main body housing 22. Thus, since the main body housing 22 is stationary during use, the guide ring 2124 is also stationary during use, i.e., the rotary housing 22 is rotatable relative to the guide ring 2124. The guide ring 2124 is configured to lock the bin clamping fixing housing 111 and the bin clamping rotating housing 112 when the bin clamping housing 11 of the bin clamping assembly 1 is divided into the bin clamping fixing housing 111 and the bin clamping rotating housing 112, so that the bin clamping fixing housing 11 is indirectly and fixedly connected with the main body housing 22, and the communication transmission between the two housings is stable and reliable; another aspect is the automatic alignment of the cartridge assembly 1 inserted into the rotary housing 21 during travel so that the locking mechanism can be smoothly locked with the locking structure of the cartridge assembly 1.

First, referring to fig. 5 and 9, the locking mechanism includes a first slot 2127 provided at a distal end of the guide ring 2124 and a second slot (refer to the arrangement of the first slot 2127) provided at a distal end of the distal rotary housing 211, both of which are formed in a slot shape by extension of the distal end toward the proximal direction. The locking structure includes a first plug 1111 disposed at the proximal end of the cartridge fixing housing 111 and a second plug 1121 disposed at the proximal end of the cartridge rotating housing 112. The first plug 1111 is inserted into the first slot 2127, and the guide ring 2124 and the cartridge fixing housing 111 form an optional circumferential lock, i.e. they cannot rotate relative to each other; the second plug 1121 is inserted into the second slot, and the distal rotary shell 211 and the cartridge rotary shell 112 form an optional circumferential lock, i.e., they cannot rotate relative to each other.

To facilitate the insertion of the first slot 2127 and the first plug 1111, as shown in fig. 9, the guide ring 2124 is provided with a first guiding portion 2128 for automatically guiding the cartridge fixing housing 111 during the insertion of the cartridge assembly 1 into the rotary housing 21, and preferably, the cartridge fixing housing 111 is automatically guided during the insertion into the rotary housing 21 while rotating.

Specifically, the first guiding portion 2128 is a first guiding groove disposed at the distal end of the guiding ring 2124, and the first guiding groove extends from a position of the distal end surface of the guiding ring 2124 along the circumferential direction and gradually increases in depth during the extension process to connect with the first slot 2127, so that the first guiding groove guides the first plug 1111, which needs to be inserted into the first slot 2127, in the cartridge fixing housing 111 to the first slot 2127 as the cartridge fixing housing 111 rotates and is inserted. In order to make the direction of the rotational insertion of the cartridge fixing housing 111 not limited, two first guide grooves are symmetrically disposed at two sides of the first slot 2127, and the depth of each of the two first guide grooves is gradually increased toward the first slot 2127 therebetween.

When the plurality of first slots 2127 are provided, the plurality of first slots 2127 are uniformly provided in the circumferential direction. A plurality of first pilot portions 2128 are correspondingly disposed, and the plurality of first pilot portions 2128 are disposed along the circumferential direction. A first slot 2127 and two first guiding portions 2128 at two sides thereof are formed as a group, and each group is identical and uniformly arranged along the circumference. Meanwhile, other structures of the subsequent locking mechanisms are uniformly arranged along the circumferential direction. Therefore, blind installation is possible, installation stroke is saved, and installation is easy.

In a case where the plurality of first slots 2127 are uniformly arranged in the circumferential direction, the plurality of first plugs 1111 are also uniformly arranged in the circumferential direction. The first plug-in connector 1111 of the cartridge fixing housing 111 is a boss arranged on the outer surface of the cartridge fixing housing 111, the near end of the boss is gradually contracted to form a triangle, an arc or a trapezoid, and the design is favorable for smooth and convenient guiding. In this embodiment, the distal and proximal ends of the boss are triangular and the middle is rectangular, forming a double-headed arrow. Thus, the tapered proximal end of the boss travels on the first guide slot as the cartridge assembly 1 rotates until it travels to the first slot 2127 and is inserted into the first slot 2127. The first plug 1111 can be smaller in size due to the presence of other structure between the cartridge retaining housing 111 and the guide ring 2124 that can provide a circumferential locking function (see locking element 2125, locking groove 1112, secondary locking mechanism, secondary locking structure, discussed in detail below).

Similarly, for facilitating the insertion of the second slot and the second plug 1121, the distal rotary housing 211 is provided with a second guiding portion (refer to the first guiding portion 2127) for automatically guiding the cartridge rotary housing 112 in the process of inserting the cartridge assembly 1 into the rotary housing 21. Preferably, the magazine rotating housing 112 is automatically guided during the process of rotating while being inserted into the rotating housing 21.

Specifically, the second guiding portion is disposed at the distal end of the distal end rotating shell 211, the second guiding portion is a second guiding groove, the second guiding groove extends circumferentially from a position on the distal end surface of the distal end rotating shell 211 and gradually increases in depth in the extending process until the second guiding groove is connected, and therefore, along with the insertion of the cartridge clamping assembly 1 while rotating, the second guiding groove guides the second plug-in connector 1121, which is required to be inserted into the second guiding groove, of the cartridge clamping assembly 1 to the second guiding groove. The direction of rotational insertion of the magazine rotation housing 112 is not limited in order to allow this. Two second guide grooves are symmetrically arranged on two sides of the second slot, and the depth of the two second guide grooves is gradually increased towards the direction of the second slot between the two guide grooves.

When a plurality of second slots are provided, the plurality of second slots 2127 are uniformly provided in the circumferential direction. A plurality of second guiding parts are correspondingly arranged and arranged along the circumferential direction. A second slot and two second guiding parts on two sides of the second slot are used as a group, and each group is identical and is uniformly arranged along the circumference. Meanwhile, other structures and communication devices of the subsequent locking mechanism are also uniformly arranged along the circumferential direction. Therefore, blind installation is possible, installation stroke is saved, and installation is easy.

In a matching manner, when the plurality of second slots are uniformly arranged along the circumferential direction, the plurality of second plugs 1121 are also uniformly arranged along the circumferential direction. The second plug-in connector 1121 of the cartridge rotation housing 112 is a boss disposed on the outer surface of the cartridge rotation housing 112, and the proximal end of the boss is tapered to form a triangle, an arc or a trapezoid, so that the design is favorable for smooth and convenient guiding. In this embodiment, the proximal end of the boss is triangular, and the remaining portion is rectangular, forming a single arrow shape. Therefore, the tapered near end of the boss walks on the second guide groove along with the rotation of the cartridge component 1 until the boss walks to the second slot and is inserted into the second slot.

In contrast, the reason why the first plug 1111 is formed in a double arrow shape and the second plug 1121 is formed in a single arrow shape is that the arrow at the distal end side of the first plug 1111 is guided first when the magazine 1 is pulled out, and since the magazine fixing housing and the magazine rotating housing are relatively fixed at this time, the guide of the first plug 1111 simultaneously allows the magazine fixing housing 111 and the magazine rotating housing 112 to obtain the guide when pulled out.

Since the boss as the first plug 1111 and the boss as the second plug 1121 are both provided on the outer surfaces of the respective parts, the radial dimension of the cartridge rotating housing 112 is smaller than that of the cartridge fixing housing 111 to allow the first plug 1111 to be inserted into the guide ring 2124 through the distal section of the rotating housing 21; or the first and second slots are circumferentially aligned, the first plug 1111 may pass through the second slot into the first slot.

Of course, the present invention is not limited to this, and the boss as the first plug 1111 and the boss as the second plug 1121 may be formed to protrude from the proximal end surfaces of the respective members. Regardless of the positions of the first plug member 1111 and the second plug member 1121, the first slot and the second slot may be a slot with a bottom or no bottom, and in the former case, the first plug member 1111 and the second plug member 1121 abut against the slot bottom in place; in the latter case, special in-place structures are provided in the adapter.

In addition, the boss may also be changed into a plug elastically connected to the cartridge rotating housing 112/the cartridge fixing housing 111, and the deformation direction of the elastic connection is along the axial direction of the cartridge rotating housing 112/the cartridge fixing housing 111. This prevents the slot from being missed by rotating too fast.

Since the cartridge rotating housing 112 and the cartridge fixing housing 111 are rotatable, the cartridge fixing housing 111 needs to be held by hand to rotate and locate, and therefore the axial distance from the first plug member 1111 to the second plug member 1121 needs to be greater than the axial distance between the first slot 2127 and the second slot.

Compared to the guide ring 2124 and the cartridge housing 111 that can be circumferentially locked by other structures, for the distal rotary shell 211 and the cartridge rotary housing 12 without additional circumferential locking components, the insertion of the second insertion slot and the second insertion piece 1121 only performs the selectable circumferential locking function of the distal rotary shell 211 and the cartridge rotary housing 12, i.e., the distal rotary shell 211 and the cartridge rotary housing 112 are selectively locked together and rotate together without disengagement. Therefore, it is apparent that the size of the second plug 1121 is larger than that of the first plug 1111 to obtain a stable circumferential locking function.

Of course, in other embodiments, a circumferential locking component for mainly achieving a circumferential locking effect may be disposed between the distal rotary shell 211 and the magazine rotary shell 112, and a circumferential locking component for assisting the second slot and the second plug 1121 in providing a circumferential locking effect may also be disposed (for example, a positioning hole may be disposed on the inner wall of the distal rotary shell 211, and a snap 1113 and an elastic ring 1114 may be disposed in the magazine rotary shell 112 of the magazine assembly 1, please refer to the similar structure disposed between the guide ring and the magazine fixing shell 111 below).

Conversely, it will be appreciated that if the first plug 1111 is sized sufficiently large and the operating conditions permit, the mating of the first plug 1111 with the first slot 2127 may replace one or both of the locking member 2125 and the locking slot 1112 (described below) and the secondary locking mechanism to achieve selective locking between the guide ring and the cartridge retaining housing 111.

Specifically, as shown in fig. 3, the locking mechanism further includes a locking ring 2121, a stopper 2122, an elastic member 2123, and a locking member 2125. The locking structure further includes locking grooves 1112 disposed on an outer surface of the cartridge retaining housing 111.

The locking ring 2121 is fitted over the guide ring 2124, and the locking ring 2121 abuts against the proximal rotary housing 212, and the locking ring 2121 and the proximal rotary housing 212 are moved in the proximal-distal direction while being affected by each other but do not rotate together (the locking ring 2121 is not rotated when the proximal rotary housing 212 rotates). The lock ring 2121 of the present embodiment is a body of revolution formed by one Z-shaped planar revolution, and the upper end of the Z is used to abut against the proximal rotary housing 212.

The limiting member 2122 is fixed to an outer side of the guide ring 2124, in this embodiment, the limiting member 2122 is an annular limiting ring, an annular limiting groove is formed in an outer peripheral wall of the guide ring 2124, and the annular limiting ring is disposed in the annular limiting groove, and the two may be fixedly connected or in a relatively tight insertion manner. The annular spacing collar can provide reliable and stable power of blockking, but the utility model discloses be not limited to this, for example, the locating part can also include one or more stopper, if a plurality of stoppers, a plurality of stoppers set up along the circumference interval of guide ring, simultaneously, can set up an annular spacing groove or one or more independent spacing groove on the guide ring come one-to-one to mate with the stopper.

In this embodiment, the elastic element 2123 is sleeved outside the guide ring 2124, and the limiting element 2122 and the elastic element 2123 together form an axial limit for the locking ring 2121. In this embodiment, the elastic member 2123 is sleeved on the outer side of the locking ring at the proximal portion, the bending at the outer surface of the Z-shaped locking ring forms a step, the distal end of the elastic member 2123 presses against the step, and the proximal end is connected to the flange formed at the proximal end of the guide ring 2124. Of course, in other embodiments, the resilient member 2123 could also be located at the proximal end of the locking ring, and the distal end of the resilient member 2123 could instead be pressed against the proximal end of the locking ring. The elastic member 2123 may be a spring. In this embodiment, when the elastic member 2123 deforms by the maximum deformation amount, the further movement of the lock ring is prevented, and the rotary housing 21 reaches the unlock position, at which the lock mechanism is unlocked. Of course, the present invention is not limited to this, and the above-mentioned unlocking position can also be limited by providing an in-place structure in the adapter, for example, the distal end portion of the fixed main body housing of the adapter constitutes the in-place structure, the rotating housing 21 is partially sleeved on the main body housing, the inner wall of the rotating housing 21 has a protrusion, and the rotating housing 21 is pulled to the proximal end until the protrusion abuts against the distal end portion of the main body housing. The setting of above-mentioned unblock position has realized that the fixed point can be inserted, but the function that the non-fixed point can not be inserted prevents the maloperation.

A locking element 2125 is provided on the guide ring 2124 for selectively locking with the locking groove 1112 in the cartridge assembly 1. In this embodiment, a plurality of locking members 2125 are uniformly arranged in one circumference, the locking members 2125 are locking beads, a mounting hole for receiving the locking beads is provided on the guide ring 2124, the diameter of the mounting hole at the inner wall of the guide ring 2124 is smaller than that at the outer wall of the guide ring, and the diameter of the locking beads is located between the diameters of both ends of the mounting hole. The locking structure is a locking groove 1112 provided on the cartridge fixing housing 111. The locking structure may comprise a plurality of locking grooves 1112 (one locking groove 1112 for each locking bead or one locking groove 1112 for each locking bead) or may be a single annular groove, which in comparison is less demanding on manufacturing accuracy, but may provide both circumferential and axial locking if the plurality of locking grooves 1112 are fitted with a plurality of locking beads and only axial locking if the annular groove. In the present embodiment, a plurality of locking grooves 1112 are uniformly provided along the circumferential direction of the cartridge fixing housing 111, and it is preferable that the plurality of locking grooves 1112 are fitted with a plurality of locking beads in a one-to-one correspondence. When the first connector 1111 and the second connector 1121 are inserted in place, the locking balls correspond to the locking grooves 1112. And because a plurality of locking grooves 1112 and a plurality of locking piece 2125 all set up evenly, so arbitrary locking piece 2125 all can with arbitrary locking groove joint, peg graft before the cooperation and lead positive setting, make blind assembly become possible, and the forward and reverse all mountable practices thrift the installation stroke, easily installs.

The bend at the inner surface of the Z-shaped locking ring is a ramp (named "annular ramp 21211") that ramps outwardly in a distal direction from annular ramp 21211, and the inner surface of locking ring 2121 further includes a retaining ring face 21212 that is attached to the proximal side of annular ramp 21211. When the locking ring 2121 abuts the stop 2122, the outer end of the locking bead abuts the retaining ring face 21212, and the locking bead is inserted into the locking groove 1112 if the cartridge assembly 1 is inserted into the rotary housing 22. When the locking ring 2121 is moved proximally until the locking bead disengages from the retaining annulus 21212, the locking ring 2121 no longer retains the locking bead, which if now located on the lower half of the adapter, moves outwardly under the force of gravity and disengages from the locking groove 1112; if the locking bead is now on the side or upper half of the adapter 2, the locking bead remains in the locking groove 1112 and when the cartridge assembly 1 is pulled out, the side walls of the locking groove 1112 have an outward force component on the locking bead which moves outward until it disengages from the locking groove 1112. It will be appreciated that the annular ramp 21211 is provided to give way for outward movement of the locking bead.

Thus, in this embodiment, the retaining ring surface 21212 of the unlocked ring 2121 presses the locking bead inwardly, such that when the cartridge assembly 1 is inserted, the locking bead engages with the locking groove 1112 in the cartridge assembly 1, and when the cartridge assembly 1 is not inserted, the locking bead will not fall out of the mounting hole due to the small inner end of the mounting hole.

In summary, when the locking ring 2121 abuts against the stop 2122, the distal end of the locking ring 2121 abuts against the proximal rotation housing 212 to connect the distal rotation housing 211 to the proximal rotation housing 212, and the locking ring 2121 urges the locking element 2125 into locking (at least axial locking) with the cartridge assembly 1. When the locking ring 2121 moves proximally with the proximal rotation shell 212 from the locked position to the unlocked position, the resilient member 2123 is energized and the locking ring 2121 allows the locking member 2125 to unlock the cartridge assembly 1 (i.e., in this embodiment, the locking member 2125 is allowed to move outwardly by an outward force). Upon removal of the proximally directed force, the force of the resilient member 2123 causes the locking ring 2121 to move the proximal rotatable shell 212 distally to the locked position and the locking ring 2121 causes the locking elements 2125 to form a lock with the cartridge assembly 1. Thus, when the locking ring 2121 is forced proximally by the proximal rotating housing 212, the locking ring 2121 moves proximally, causing the locking elements 2125 to unlock the cartridge assembly 1 and the locking ring 2121 to compress the resilient elements 2123. When the external force applied to the lock ring 2121 disappears: the resilient member 2123 urges the locking ring 2121 to move distally and the locking ring 2121 urges the proximal rotary housing 212 to move distally until the locking ring 2121 abuts the stop 2122, at which point the proximal rotary housing 212 is coupled to the distal rotary housing 211 and the locking ring 2121 urges the locking element 2125 to at least axially lock with the locking groove 1112 of the cartridge assembly 1.

Also included in the cartridge assembly 1 is an auxiliary locking mechanism for engaging an auxiliary locking structure on the guide ring 2124 to lock the cartridge retaining housing 111 and the guide ring 2124 when the cartridge assembly 1 is inserted into position. The process of the cartridge assembly 1 moving in the distal direction by the external force in the distal direction can cause the disengagement of the auxiliary locking mechanism and the auxiliary locking mechanism.

In this embodiment, the auxiliary locking mechanism includes an elastic ring 1114 and a plurality of elastic buckles 1113 connected to the elastic ring 1114, the elastic ring 1114 is located in an inner wall groove of the cartridge fixing housing 111, and an axis of the elastic ring 1114 coincides with an axis of the cartridge fixing housing 111, and does not disengage from the inner wall groove but can deform in the inner wall groove when in use. The auxiliary locking structure is a plurality of positioning holes disposed on the inner wall of the guide ring 2124, and the plurality of elastic buckles 1113 correspondingly penetrate through the plurality of through holes on the cartridge fixing housing 111 one by one to be connected with the plurality of positioning holes one by one. When the cartridge assembly 1 is pulled out, the outer end of the elastic buckle 1113 is forced inward by the inner wall of the positioning hole on the guide ring 2124, and the elastic buckle 1113 moves inward and drives the elastic ring 1114 to deform until the elastic buckle 1113 is separated from the positioning hole.

Preferably, the plurality of elastic buckles 1113 are uniformly arranged along the circumference of the elastic ring 1114, and the plurality of positioning holes are uniformly arranged along the circumference of the guide ring, so that any elastic buckle can be jointed with any positioning hole, and the inserting, guiding and locking piece 2125 is arranged before matching, so that blind installation is possible, installation in both forward and reverse directions is possible, the installation stroke is saved, and the installation is easy. Of course, the number of the snap 1113 may be one, or may be two or more, and the greater the number, the greater the locking strength.

Therefore, the matching of the locking mechanism and the locking structure and the matching of the auxiliary locking mechanism and the auxiliary locking structure form double locking, so that the connection between the adapter 2 and the cartridge assembly 1 is firmer, and the locking safety is improved. Of course, the utility model discloses in carry out the structure of double locking not be limited to this, can not set up supplementary locking structure and supplementary locking mechanical system, but set up locking piece 2125 in a plurality of circumferences, wherein evenly set up a plurality of locking pieces 2125 in every circumference, locking piece 2125 in the different circumferences can staggered arrangement each other, and locking effect is better this moment, but also need guarantee evenly when crisscross to can match when realizing blind dress. Of course, the locking elements 2125 in different circumferences may be arranged in the same manner. The locking elements 2125 are arranged in a plurality of circumferences, so that double locking at different positions in the axial direction is achieved and even more locking positions. Wherein, when the locking piece is a locking bead, the inner surface of the locking ring is correspondingly provided with a plurality of annular inclined surfaces.

In addition, the locking member 2125 may also be a snap fastener, which is disposed in the mounting hole of the guide ring 2124 via a torsion spring; the locking member 2125 may also be a resilient latch.

As shown in fig. 6-7, in the present embodiment, the identification signal generating structure is an identification information storage chip 1116, and the identification information storage chip 1116 stores specification information of the cartridge assembly 1, wherein the specification information includes information of the clips in the cartridge assembly 1. The identification information storage chip 1116 is provided with a plurality of sets of Pin pins 11161 which are communicated with the identification signal receiver, and when any set of Pin pins 11161 is communicated with the identification signal receiver, communication connection can be realized without communicating the designated Pin 11161 with the identification signal receiver, so that the communication connection between the cartridge assembly 1 and the adapter 2 is more convenient and the reverse installation of the cartridge assembly 1 is allowed. When the connector is plugged into the slot, a set of Pin 11161 is connected to the identification signal receiver. As shown in fig. 7, in the present embodiment, 2 sets of Pin needles 11161 are provided, each set of Pin needles 11161 including 4 Pin needles, but it is possible to modify each set of Pin needles 11161 to include one or more Pin needles. Preferably, the plurality of sets of Pin needles 11161 are uniformly arranged along the circumferential direction, and in the embodiment, the two sets of Pin needles are arranged at an included angle of 180 °. In this embodiment, two pins set up, and the setting of grafting, leading and locking piece before the cooperation makes blind dress become possible, and the installation stroke is practiced thrift to forward and reverse mountable, easily installation.

Generally, the locking mechanism and the locking structure, the auxiliary locking mechanism and the locking structure and the communication device can be accurately matched on the basis of bidirectional automatic correction, and blind installation can be realized.

The installation procedure of the cartridge assembly 1 and applicator in this embodiment is described as follows:

s1, the operator pulls the proximal rotating shell 212 to the unlocked position in the proximal direction, the proximal rotating shell 212 pushes the locking ring 2121 to move in the proximal direction, the elastic member 223 is compressed, and the annular inclined surface 21211 of the locking ring 2121 moves to the outside of the locking bead, so that the locking bead on the guide ring 2124 is in a free state;

s2, the cartridge assembly 1 is integrally inserted into the adaptor 2, when the first plug 1111 is pressed against the end of the guide ring 2124 in the insertion process, the operator feels in place, the operator rotates and faces the cartridge fixing housing 111 in the proximal direction, and the first guide groove guides the first plug 1111 to enter the first slot 2127;

s3, when the operator rotates the cartridge rotating housing 112 towards the proximal direction, the second guiding slot will guide the second plug 1121 into the second slot, in this process, the cartridge rotating housing 112 will push the cartridge fixing housing 111 to continue to move along the first slot 2127 along the straight line towards the proximal direction, and then push the cartridge rotating housing 112 towards the proximal direction until one of the first plug 1111 and the second plug is inserted into the position. At this point, the locking bead is already in the locking groove 1112, the locking bead in the upper half has fallen into the locking groove 1112 due to gravity, the latch 113 has sprung into the positioning hole, and the communication connection between the cartridge assembly 1 and the adapter 2 is established.

S4, the operator releases the proximal rotating shell 212, the resilient member 2123 urges the locking ring 2121 distally into abutment with the stop member 2122, distal movement of the locking ring 2121 urges the proximal rotating shell 212 distally into engagement with the distal rotating shell 211, and the retaining ring face 21212 of the locking ring 2121 urges the locking bead into engagement with the locking groove 1112. At this point, the cartridge assembly 1 and adapter 2 are locked.

The procedure for disassembling the cartridge assembly 1 from the applicator in this embodiment is described as follows:

s1, the operator pulls the proximal rotation housing 212 to the unlocked position in the proximal direction, the proximal rotation housing 212 pushes the locking ring 2121 to move in the proximal direction, the elastic member 2123 is compressed, and the annular inclined surface 21211 of the locking ring 2121 moves to the outside of the locking bead, so that the locking bead on the guide ring 2124 is in a free state, and the locking bead on the lower half moves outwards due to gravity and disengages from the locking groove 1112;

s2, the operator pulls the magazine rotating housing 112 distally, the magazine rotating housing 112 drives the magazine fixing housing 111 to move distally, the outer wall of the magazine fixing housing 111 pushes the locking bead located at the upper half to disengage from the locking groove 1112, and the outer wall of the guide ring 2124 pushes the snap 1113 in the magazine fixing housing 111 moving distally to move inwardly to disengage from the positioning hole. With the cartridge assembly 1 overall in the distal direction, when the first plug 1111 and the second plug 1121 are both separated from their corresponding slots, the cartridge assembly 1 is completely separated from the adapter 2.

When the clip applier is operated, the clip magazine fixing housing 111 can be fixed in the rotary housing 21 of the adaptor 2 in such a manner as to remain relatively stationary with respect to the main body housing 22. The rod body 12 of the cartridge assembly 1 is partially fixed in the accommodating cavity of the cartridge housing 11 along the axis of the rod body 12 in a manner of rotating along with the cartridge rotating shell 112, and a clip for being applied is placed in the rod body 12. One end, namely a connecting end, of an end effector 13 of the clip chamber assembly 1 is connected with the rod body 12, and in the practical application process, the end effector 13 is a clamp for applying clips.

In this embodiment, by arranging the cartridge fixing housing 111 and the cartridge rotating housing 112 which rotate relatively, when the cartridge assembly 1 operates, the identification signal generating structure in the cartridge fixing housing 111 can be stationary relative to the main housing 22 of the adapter 2, thereby ensuring the reliability of signal transmission between the cartridge assembly 1 and the adapter 2 and further ensuring the reliability of identification in the adapter 2.

In addition, the cartridge assembly 1 includes a cartridge shaft 1115 located in the cartridge housing, a driving shaft 221 capable of driving the cartridge shaft 1115 to move and a driving mechanism for driving the driving shaft 221 to rotate and/or move axially are disposed in the main body housing 22 of the adapter 2, when the cartridge assembly 1 is plugged into or pulled out from the adapter 2, the cartridge shaft 1115 is located at an initial position, the driving shaft 221 is located at an initial position, and the two are connected in a spaced or axially separable manner, for example, the driving shaft 221 of the main body housing 22 is clamped with the cartridge shaft 1115 of the cartridge assembly 1, thereby further facilitating plugging and pulling out of the cartridge assembly 1.

In other embodiments of the present invention, the cartridge housing 11 can be a whole, when the cartridge housing 11 is a whole, the cartridge housing 11 is locked with the guide ring 2124 and the guide ring 2124 is rotatably connected to the main housing 22, and the first slot 2127, the first plug 1111, the cooperating guiding portion, the second slot, the second plug 1121, and the cooperating guiding portion can be selected to be one of the remaining portions.

In another embodiment of the present invention, the rotary housing 21 may not be separately designed, but an operation portion (for example, a pull block) capable of moving far and near is provided on the rotary housing 21 instead of the function of the near-end rotary housing 212. At this time, the locking mechanism is provided in the rotary housing 21, and the operating portion is moved in the proximal direction by an external force in the proximal direction, causing the locking mechanism to allow the cartridge assembly 1 of the clip applier to be inserted into the rotary housing 21 and to be extracted from the rotary housing 21. When the external force in the proximal direction is removed, the locking mechanism causes the operating part to move to the original position in the distal direction, and can cooperate with the locking structure on the cartridge assembly 1 to lock the cartridge assembly 1 in the rotating housing 21. Specifically, when the locking ring 2121 is subjected to an external force in the proximal direction from the operating portion: the locking ring 2121 moves in a proximal direction causing the locking element 2125 to unlock the cartridge assembly and the locking ring 2121 compresses the resilient element 2123; when the external force applied to the lock ring 2121 disappears: the resilient member 2123 urges the locking ring 2121 to move distally and the locking ring 2121 urges the operating portion to move distally until the locking ring 2121 abuts the stop 2122, at which point the operating portion is in place and the locking ring 2121 urges the locking element 2125 to form an axial lock with the locking structure of the cartridge assembly 1. At this time, if the arrangement of the operating portion is adopted, the lock ring 2121 may be changed to a non-annular lock portion.

In addition, in other embodiments, the stop member 2122 can be eliminated, and when the power of the elastic member 2123 is exhausted, the locking ring 2121 just pushes the proximal rotation housing 212 to connect with the distal rotation housing 211 or just pushes the operation portion to the original position.

To sum up, above embodiment is with pressing from both sides storehouse shell and adapter shell and divide into two parts of relative rotation for the example, nevertheless under the condition that does not need pressing from both sides storehouse shell and adapter shell to divide into two parts of relative rotation, the utility model discloses also can be suitable for. In this case, an operation member (a housing in which a part of the adapter housing is rotatable, or a small operation portion) which can be moved in the near-far direction is directly provided on the adapter housing. At this time, the operating member moves towards the proximal direction under the action of an external force towards the proximal direction, so that the locking mechanism can allow the clip bin assembly 1 of the clip applier to be inserted into and pulled out of the adapter housing; when the external force towards the proximal direction disappears, the locking mechanism enables the operating part to move to the original position towards the distal direction, and can be matched with the locking structure on the cartridge assembly 1 to lock the cartridge assembly 1 in the adapter, and at the moment, all the parts linked with the rotating shell, the proximal rotating shell and the operating part and the corresponding relations can be transferred to the operating part. As briefly described below, reference may be made to the corresponding parts of the above embodiments without specific description.

Preferably, the guide ring 2124 is disposed within the proximal end of the adapter housing, and a pilot portion is disposed on one or both of the guide ring 2124 and the adapter housing, the pilot portion providing bi-directional auto-pilot of the cartridge assembly 1 during insertion of the cartridge assembly 1 into the adapter housing. The locking mechanism and the locking structure can be matched on the basis of bidirectional automatic correction.

Preferably, the locking mechanism comprises slots provided at the distal ends of the guide ring 2124 and the adapter housing for connection with the cartridge assembly 1 to form a circumferential lock. The guide ring 2124 and the pilot portion of the rotary housing 21 are provided with guide grooves at distal ends thereof, the guide grooves extending circumferentially from a position on the distal end surface and gradually increasing in depth to the coupling slot during extension.

Preferably, the locking mechanism further includes a locking ring 2121, a stopper 2122, an elastic member 2123, and a locking member 2125. The locking ring 2121 abuts against the operating element and is slidably sleeved on the guide ring 2124, the limiting element 2122 is fixed on the outer side of the guide ring 2124, and the elastic element 2123 is sleeved on the outer side of the guide ring 2124 and forms an axial limit for the locking ring 2121 together with the limiting element 2122.

The locking member 2125 is provided on the guide ring 2124, and when the locking ring 2121 is subjected to an external force in the proximal direction by the operation member: the locking ring 2121 moves in a proximal direction causing the locking element 2125 to unlock the cartridge assembly and the locking ring 2121 compresses the resilient element 2123.

When the external force applied to the lock ring 2121 disappears: the resilient member 2123 urges the locking ring 2121 to move in a distal direction and the locking ring 2121 urges the operating member to move in a distal direction until the locking ring 2121 abuts the stop 2122, at which point the operating member is in place and the locking ring 2121 urges the locking member 2125 to at least axially lock with the locking grooves of the cartridge assembly 1.

The cartridge assembly 1 comprises a cartridge housing 11, an identification signal generating structure is arranged at the near end of the cartridge housing 11, a fixed identification signal receiver is arranged in the adapter 2, and the identification signal receiver is in communication connection with the identification signal generating structure. The cartridge housing 11 is selectively lockable with the guide ring or adapter housing by cooperation of a locking mechanism and locking structure.

Also included in the cartridge assembly is a secondary locking mechanism for engaging a secondary locking structure on the guide ring 2124 and/or the adapter housing to lock the cartridge housing 11 and the guide ring 2124 and/or the adapter housing when the cartridge assembly is inserted into position. The process of the cartridge assembly 1 moving in the distal direction due to the external force in the distal direction can cause the disengagement of the auxiliary locking mechanism and the auxiliary locking mechanism.

The secondary locking mechanism includes a resilient ring 1114 seated in a recess in the inner wall of the cartridge housing 11, and a plurality of snaps 1113 attached to the resilient ring 1114. The secondary locking structure is a plurality of positioning holes 2126 formed in the guide ring 2124 and/or the inner wall of the adapter housing, and the resilient buckle 1113 passes through the through hole of the cartridge housing 11 to engage with the positioning holes 2126.

The locking structure includes a locking groove 1112 provided on an outer surface of the cartridge housing 11, the locking groove 1112 locking with the locking bead. The locking structure further comprises a plug-in unit arranged on the cartridge housing 11, the plug-in unit is inserted into a slot on the guide ring 2124 and/or the adapter housing, and the plug-in unit and the slot are inserted into each other to form circumferential locking of the cartridge housing 11 and the guide ring 2124 and/or the adapter housing.

Example 2

Referring to fig. 10, the present embodiment is different from embodiment 1 in that the auxiliary lock mechanism is different. Specifically, in this embodiment, the auxiliary locking mechanism includes at least one set of mushroom-shaped buckle 1117 and elastic seat 1118, the inner wide hole and the outer narrow hole are connected to form an inverted trapezoidal groove on the cartridge fixing housing 111, the elastic seat 1118 is fixed in the wide hole, the elastic seat 1118 can be any connecting member such as a spring, a rubber pad, etc. which can provide elasticity, the mushroom-shaped buckle 1117 includes a hemispherical head and a supporting portion located on the inner side of the hemispherical head, the supporting portion is connected between the hemispherical head and the elastic seat 1118, and in the free state, the hemispherical head of the mushroom-shaped buckle 1117 passes through the narrow hole to enter the positioning hole 2126 to form the auxiliary locking. During withdrawal or insertion of the cartridge assembly, the hemispherical heads of the mushroom shaped snaps 1117 are forced out of the alignment holes 2126 by the inner wall of the guide ring 2124, compressing the resilient pad 1118.

Preferably, a plurality of mushroom-shaped buckles 1117 and the elastic seat 1118 are provided, the mushroom-shaped buckles 1117 are uniformly arranged along the circumferential direction of the cartridge fixing shell 111, and the positioning holes are uniformly arranged along the circumferential direction of the guide ring, so that any mushroom-shaped buckle 1117 can be engaged with any positioning hole, and the blind assembly is possible by matching with the arrangement of the plugging, guiding and locking piece which is described in detail in embodiment 1, the installation can be carried out in the forward and reverse directions, the installation stroke is saved, and the installation is easy. It is understood that the number of mushroom-shaped snaps 1117 can be one, and can also achieve auxiliary locking, and can also be two or more, and the greater the number, the greater the locking strength.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An adapter for a clip applier comprising an adapter housing,

the adapter housing includes an operating member movable in a proximal-distal direction;

the adapter (2) further comprises a locking mechanism disposed within the adapter housing;

the operating piece moves towards the proximal direction to the unlocking position under the action of external force towards the proximal direction, and the locking mechanism is prompted to allow the clip bin assembly (1) of the clip applier to be inserted into the adapter shell and pulled out of the adapter shell;

when the external force towards the proximal direction disappears, the locking mechanism causes the operating piece to move to the original position towards the distal direction and can be matched with the locking structure of the cartridge assembly (1) to lock the cartridge assembly (1) in the adapter (2);

the adapter (2) further comprises a drive shaft (221) in the adapter housing and a drive mechanism connected to the drive shaft (221) for driving the drive shaft (221) in rotation and/or in axial movement.

2. The adapter for a clip applier according to claim 1,

the adapter housing comprises a main body housing (22) and a rotary housing (21), the rotary housing (21) being rotatably connected to the main body housing (22);

wherein the rotating housing (21) comprises a distal rotating shell (211) and a proximal rotating shell (212) which are detachably connected, the proximal rotating shell (212) is used as the operation piece, and the original position of the proximal rotating shell (212) is the position where the proximal rotating shell (212) is connected with the distal rotating shell (211); or

An operation part capable of moving far and near is arranged on the rotating shell (21), and the operation part is used as the operation piece.

3. The adapter for a clip applier according to claim 2, further comprising a guide ring (2124), said guide ring (2124) extending from a proximal end of said rotary housing (21) into said rotary housing (21), a proximal end of said guide ring (2124) being connected to said body housing (22);

the guide ring (2124) and the rotary shell (21) are provided with a guide part, and the guide part forms bidirectional automatic guide to the bin clamping assembly (1) in the process that the bin clamping assembly (1) is inserted into the rotary shell (21);

the locking mechanism and the locking structure can be matched on the basis of bidirectional automatic correction.

4. The adapter for a clip applier according to claim 3,

the locking mechanism comprises slots arranged at the far ends of the guide ring (2124) and the rotary shell (21) and is used for being connected with plug connectors on the bin clamping assembly (1) to form circumferential locking;

the guide ring (2124) and the pilot part of the rotating shell (21) are respectively arranged in guide grooves at the far ends of the guide ring and the rotating shell, and the guide grooves extend from one position of the far end surface along the circumferential direction and gradually increase in depth to be connected with the inserting grooves in the extending process.

5. The adapter for a clip applier according to claim 4,

the locking mechanism further comprises a locking ring (2121), a limiting piece (2122), an elastic piece (2123) and a locking piece (2125);

the locking ring (2121) is adjacent to the proximal rotating shell (212)/the operating part and slidably sleeved on the guide ring (2124), the limiting piece (2122) is fixed on the outer side of the guide ring (2124), and the elastic piece (2123) is sleeved on the outer side of the guide ring (2124) and forms axial limiting on the locking ring (2121) together with the limiting piece (2122);

the locking piece (2125) is arranged on the guide ring (2124);

the locking ring (2121) is, when acted upon by an external force in the proximal direction of the proximal rotating shell (212)/the operating portion:

the locking ring (2121) is moved in a proximal direction to urge the locking element (2125) out of locking engagement with the cartridge assembly and the locking ring (2121) compresses the resilient element (2123);

when the locking ring (2121) is subjected to the external force, the locking ring is not in contact with the external force:

the resilient member (2123) urges the locking ring (2121) to move distally and the locking ring (2121) urges the proximal rotary housing (212)/the operating portion to move distally until the locking ring (2121) abuts the stop member (2122), at which point the proximal rotary housing (212) is connected to the distal rotary housing (211)/the operating portion is in the home position, and the locking ring (2121) urges the locking member (2125) to at least axially lock with the locking groove of the cartridge assembly (1).

6. The adapter for a clip applier according to claim 5,

one locking piece (2125) or at least two locking pieces (2125) are arranged in one circumference, an auxiliary locking structure used for being matched with an auxiliary locking mechanism in the clamping bin assembly (1) is arranged on the guide ring (2124), and the auxiliary locking mechanism and the auxiliary locking structure can be matched on the basis of bidirectional automatic guiding; or

-arranging said locking elements (2125) in a plurality of circumferences, wherein one locking element (2125) is arranged in each circumference or at least two locking elements (2125) are arranged uniformly;

wherein the locking piece (2125) is a locking bead, the guide ring (2124) is provided with a mounting hole for accommodating the locking bead, the diameter of the mounting hole at the inner wall of the guide ring (2124) is smaller than the diameter thereof at the outer wall of the guide ring (2124), the diameter of the locking bead is positioned between the diameters of the two ends of the mounting hole, the inner surface of the locking ring (2121) comprises a pressing annular surface (21212) and an annular inclined surface (21211) which are connected in the far and near directions, the annular ramp (21211) is inclined outwardly in a distal direction, and when the locking ring (2121) abuts against the stop (2122), the outer end of the locking bead abuts against the abutting ring surface (21212), and when the locking ring (2121) moves towards the proximal direction until the locking bead is separated from the abutting ring surface (21212), the locking bead moves outwards under the action of an external force.

7. Clip applier comprising a clip cartridge assembly (1), characterized in that it further comprises an adapter (2) according to any one of claims 1-2;

a locking structure is arranged in the bin clamping assembly (1);

when the operating piece moves towards the proximal direction under the action of external force towards the proximal direction, the cartridge assembly (1) can be inserted into and pulled out of the adapter shell;

when the external force towards the proximal direction is eliminated, the locking mechanism is matched with the locking structure, so that the cartridge assembly (1) is locked in the adapter shell;

the cartridge assembly (1) further comprises a cartridge housing (11) and a cartridge shaft (1115) positioned in the cartridge housing, when the cartridge assembly (1) is plugged in and pulled out of the adapter (2), the cartridge shaft (1115) is positioned at an initial position, the driving shaft (221) is positioned at an initial position, and the cartridge housing and the driving shaft are connected in a spaced or axially separable mode.

8. The clip applier according to claim 7,

the cartridge assembly (1) comprises a locking structure and an auxiliary locking mechanism, wherein the locking structure is matched with the locking mechanism of the adapter (2), and the auxiliary locking mechanism is matched with the auxiliary locking structure in the adapter (2) to form double locking;

the secondary locking mechanism and the secondary locking structure lock the cartridge assembly (1) in the adapter housing when the cartridge assembly is inserted in place;

the process that the bin clamping assembly (1) moves towards the far end direction due to the action of external force towards the far end direction can cause the auxiliary locking mechanism and the auxiliary locking mechanism to be disengaged.

9. Clip applier comprising a clip cartridge assembly (1), characterized in that it further comprises an adapter (2) according to any one of claims 3-6;

a locking structure is arranged in the bin clamping assembly (1);

10. The clip applier according to claim 9,

11. The clip applier according to claim 10,

the clamping bin shell (11) comprises a clamping bin fixing shell (111) and a clamping bin rotating shell (112) which are rotatably connected together, an identification signal generating structure is arranged at the near end of the clamping bin fixing shell (111), a fixed identification signal receiver is arranged in the adapter (2), and the identification signal receiver is in communication connection with the identification signal generating structure;

the clip bin fixing housing (111) and the guide ring (2124) are selectively locked, and the clip bin rotating housing (112) and the rotating housing (21) are selectively locked by cooperation of a locking mechanism and a locking structure;

the secondary locking mechanism cooperates with a secondary locking structure on the guide ring (2124) to lock the cartridge retaining housing (111) and the guide ring (2124) when the cartridge assembly is inserted into position.

12. The clip applier of claim 11,

the auxiliary locking mechanism comprises an elastic ring (1114) positioned in a groove on the inner wall of the cartridge fixing shell (111) and one or at least two elastic buckles (1113) connected to the elastic ring (1114);

the auxiliary locking structure is one or at least two positioning holes (2126) arranged on the inner wall of the guide ring (2124), and the elastic buckle (1113) penetrates through a through hole on the cartridge fixing shell (111) to be jointed with the positioning holes (2126).

13. The clip applier of claim 11,

the locking mechanism includes a locking member (2125);

the locking structure comprises a locking groove (1112) arranged on the outer surface of the cartridge fixing shell (111), the locking piece (2125) is a locking bead, and the locking groove (1112) is locked with the locking bead;

the locking structure further comprises a plug connector arranged on the bin clamping fixing shell (111), the plug connector is inserted into a slot on the guide ring (2124), and the plug connector and the slot are connected in a plugging mode to form circumferential locking on the bin clamping fixing shell (111) and the guide ring (2124);

the locking structure further comprises a plug connector arranged on the clamping bin rotating shell (112), the plug connector is inserted into a slot on the rotating shell (21), and the plug connector and the slot are connected in a plugging mode to form circumferential locking on the clamping bin rotating shell (112) and the rotating shell (21);

the axial distance between the plug connectors on the cartridge fixing shell (111) and the cartridge rotating shell (112) is greater than that between the slots on the guide ring (2124) and the slots on the rotating shell (21).

14. The clip applier of claim 13,

the identification signal generating structure is an identification information storage chip (1116), the identification information storage chip (1116) is provided with two groups of Pin needles which can be communicated with the identification signal receiver, and when the plug connector is plugged with the slot, the identification signal receiver is connected with one group of Pin needles;

wherein each group of Pin needles comprises one or at least two Pin needles (11161).