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EP-4215130-B1 - ADAPTER FOR CLIP APPLIER, AND CLIP APPLIER

EP4215130B1EP 4215130 B1EP4215130 B1EP 4215130B1EP-4215130-B1

Inventors

  • XU, RONGHUA

Dates

Publication Date
20260506
Application Date
20210910

Claims (4)

  1. A clip applicator, comprising: a clip-cartridge assembly (1), comprising a lock structure and an auxiliary lock mechanism ; and an adapter (2), comprising: an adapter outer shell, as well as a lock mechanism and an auxiliary lock structure arranged in the adapter outer shell, wherein the adapter outer shell comprises an operation member, the operation member is configured to move along a proximal-end direction and a distal-end direction; wherein the clip applicator is configured such that: when the operation member is configured to move along the proximal-end direction under the action of an external force along the proximal-end direction, the clip-cartridge assembly (1) is configured to be plugged into the adapter outer shell and pulled out of the adapter outer shell; after the external force along the proximal-end direction has disappeared, the lock mechanism is configured to cooperate with the lock structure and the clip-cartridge assembly (1) is configured to be locked in the adapter outer shell; wherein the lock structure is configured to cooperate with the lock mechanism, and the auxiliary lock mechanism is configured to cooperate with the auxiliary lock structure ; wherein the clip applicator is further configured such that: when the clip-cartridge assembly (1) is plugged in place, the auxiliary lock mechanism and the auxiliary lock structure are configured to cooperated with each other and the clip-cartridge assembly (1) is configured to be locked in the adapter outer shell; and when the clip-cartridge assembly (1) moves along the distal-end direction due to an external force along the distal-end direction, the auxiliary lock mechanism and the auxiliary lock structure are configured to be disengaged from each other; wherein the clip-cartridge assembly (1) comprises a clip-cartridge outer shell (11), characterised in that : the clip· cartridge outer shell (11) comprises a clip-cartridge fixation shell (111) and a clip-cartridge rotation shell (112) that are configured to be rotatably connected with each other, an identification signal generation structure is arranged at a proximal end of the clip-cartridge fixation shell (111), an identification signal receiver is fixed in the adapter (2), and the identification signal receiver is configured to be in signal communication with the identification signal generation structure; the adapter outer shell comprises a main body outer shell (22) and a rotation outer shell (21), and the rotation outer shell (21) is configured to be rotatably connected to the main body outer shell (22); the clip-cartridge fixation shell (111) and the guide ring (2124) are configured to be optionally locked through cooperation of the lock mechanism and the lock structure, and the clip-cartridge rotation shell (112) and the rotation shell (21) are configured to be optionally locked; the clip applicator is further configured such that: when the clip-cartridge assembly is plugged in place, the auxiliary lock mechanism is configured to cooperate with the auxiliary lock structure on the guide ring (2124) to lock the clip-cartridge fixation shell (111) and the guide ring (2124).
  2. The clip applicator according to claim 1, wherein the auxiliary lock mechanism comprises an elastic ring (1114) located in an inner wall groove of the clip-cartridge fixation shell (111), and one or at least two positioning protrusions (1113) are configured to be connected to the elastic ring (1114); the auxiliary lock structure is one or at least two positioning holes (2126) arranged on an inner wall of the guide ring (2124), and the positioning protrusion (1113) is configured to run through a through hole on the clip-cartridge fixation shell (111) to engage with the positioning hole (2126).
  3. The clip applicator according to claim 1, wherein the lock structure comprises a lock groove (1112) arranged on an outer surface of the clip-cartridge fixation shell (111), and the lock groove (1112) is configured to be locked with the lock bead; the lock structure further comprises a plug member arranged on the clip-cartridge fixation shell (111), the plug member is configured to be plugged into a plug slot on the guide ring (2124), and plug between the plug member and the plug slot provides a circumferential lock of the clip-cartridge fixation shell (111) and the guide ring (2124); the lock structure further comprises a plug member arranged on the clip-cartridge rotation shell (112), the plug member is configured to be plugged into a plug slot on the rotation outer shell (21), and plug between the plug member and the plug slot provides a circumferential lock of the clip-cartridge rotation shell (112) and the rotation outer shell (21); an axial distance between the plug member on the clip-cartridge fixation shell (111) and the plug member on the clip-cartridge rotation shell (112) is greater than an axial distance between the plug slot on the guide ring (2124) and the plug slot on the rotation outer shell (21).
  4. The clip applicator according to claim 3, wherein the identification signal generation structure is an identification information storage chip (1116), the identification information storage chip (1116) is provided with two groups of pin needles that are configured to be in signal communication with the identification signal receiver, and the clip applicator is further configured such that: when the plug member is plugged into the plug slot, the identification signal receiver is configured to be connected with at least one group of pin needles; each group of pin needles comprises one or at least two pin needles (11161).

Description

TECHNICAL FIELD The present disclosure relates to a field of medical instrument, and more particularly, to an adapter of a clip applicator and a clip applicator. BACKGROUND A surgical clip applicator is usually configured for clipping a tubular tissue during surgical operation, so as to avoid exudation of fluid of the tubular tissue. In the prior art, a clip-cartridge assembly of the clip applicator is detachably mounted on an adapter of the clip applicator and is in signal communication with the adapter; the adapter identifies the information of clips in the clip-cartridge assembly so as to execute a corresponding program action. During assembling and disassembling the clip-cartridge assembly and the adapter, a structure of a connection portion between the adapter and the clip-cartridge assembly is complex, which is not convenient for assembling and disassembling the clip-cartridge assembly, and thus is not convenient for user's operation, rendering low operation efficiency. EP3373830 (A1) provides a handle assembly of a reposable surgical clip applier configured to releasably engage at least two different endoscopic clip-applying assemblies. The handle assembly includes a housing, a trigger pivotably connected to the housing and movable relative thereto between an un-actuated position and an actuated position, and a drive bar slidably supported within the housing and operably coupled to the trigger such that movement of the trigger from the un-actuated position towards the actuated position translates the drive bar distally through the housing. The drive bar includes a ratchet rack disposed thereon. The handle assembly further includes a pawl pin supported within the housing and extending transversely relative to a longitudinal axis of the housing, a ratchet pawl pivotably and slidably supported on the pawl pin, and a bypass assembly. The ratchet pawl is transversely slidable about the pawl pin between a use position, wherein the ratchet pawl is aligned relative to the ratchet rack to engage the ratchet rack upon distal translation of the drive bar, and a bypass position, wherein the ratchet pawl is offset relative to the ratchet rack to inhibit engagement therewith upon distal translation of the drive bar. The bypass assembly includes a plunger slidably disposed within the housing and operably coupled to the ratchet pawl. The plunger is movable between a first position and a second position for sliding the ratchet pawl between the use position and the bypass position. SUMMARY It is an object of the present invention to provide an adapter of a clip applicator and a clip applicator, which is convenient for assembling and disassembling (i.e. plug-in and pull-out) between the clip-cartridge assembly and the adapter, and has a fool-proof effect. The object is achieved by the features of the independent claim. Further embodiments are defined in the dependent claims. Even though the description refers to embodiments or to the invention, it is to be understood that the invention is defined by the claims and embodiments of the invention are those comprising at least all the features of the independent claim. The adapter of the clip applicator according to the present disclosure, by pulling the operation member of the adapter outer shell along the proximal-end direction, the lock mechanism does not limit plugging in and pulling out of the clip-cartridge assembly, at this time, the clip-cartridge assembly is plugged in and pulled out freely. After the clip-cartridge assembly is plugged into the adapter, the clip-cartridge assembly and the adapter are locked by canceling the pulling force along the proximal-end direction. Therefore, assembling and disassembling (i.e. plug in and pull out) of the clip-cartridge assembly is convenient, which is convenient for an operation of a user, and further improves the operation efficiency. Meanwhile, the clip-cartridge assembly is not capable of being plugged in and pulling out at a non-mounting position, which prevents the clip-cartridge assembly from being plugged in and pulled out by error to cause adverse consequences, and has a fool-proof effect, thereby improving safety and reliability. The clip applicator provided by the present disclosure allows assembling and disassembling (i.e. plug in and pull out) of the clip-cartridge assembly convenient, which is convenient for an operation of a user, and further improves the operation efficiency. Meanwhile, the clip-cartridge assembly is not capable of being plugged in and pulling out at a non-mounting position, which prevents the clip-cartridge assembly from being plugged in and pulled out by error, and has a fool-proof effect. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a structural schematic view of Embodiment 1 of a clip applicator provided by the present disclosure;FIG. 2 is a cross-sectional schematic view of the clip applicator in FIG. 1;FIG. 3 is an enlarged view of portion B in FIG. 2, in which the adapter and the clip-cartri