Injector for introducing a capsular tension ring, and assembly and method for such an injector

An assembly of an injector as claimed in and a capsular tension ring, wherein the injector for introducing a capsular tension ring and intended for once-only use comprises:

• a housing provided from a first and a second housing part extending in longitudinal direction of the injector, and a throughfeed channel;
• a plunger arranged substantially movably in the throughfeed channel of the housing and provided with an engaging means configured to engage on the capsular tension ring to be introduced, and further provided with a guide element arranged on a guide arm;
• and
• a spring mechanism which co-acts with the plunger and which is configured to displace the plunger from a starting state, in which the engaging means engages on the capsular tension ring, to an activating state in which the capsular tension ring is carried inward substantially into the throughfeed channel of the injector,
• wherein the housing is provided with a guide configured to at least partially receive the guide element such that the plunger is guidable from the starting state to the activating state,
• wherein the guide is provided with a first channel part which substantially extends parallel to the throughfeed channel for guiding the plunger in a forward direction, a second channel part configured to carry the guide element therein at an angle to the throughfeed channel in an at least partially rearward direction such that the spring mechanism can carry the plunger to the activating state, and a wall part for carrying the guide element from the first to the second channel part, and
• wherein the first channel part is provided with a resistance threshold with a resistance height which is smaller than the height of the guide arm.

A method for manufacturing an injector for introducing a capsular tension ring and intended for once-only use, the method comprising of providing an injector for introducing a capsular tension ring and intended for once-only use, the injector comprising:

• a housing provided from a first and a second housing part extending in longitudinal direction of the injector, and a throughfeed channel;
• a plunger arranged substantially movably in the throughfeed channel of the housing and provided with an engaging means configured to engage on the capsular tension ring to be introduced, and further provided with a guide element arranged on a guide arm;
• and
• a spring mechanism which co-acts with the plunger and which is configured to displace the plunger from a starting state, in which the engaging means engages on the capsular tension ring, to an activating state in which the capsular tension ring is carried inward substantially into the throughfeed channel of the injector,
• wherein the housing is provided with a guide configured to at least partially receive the guide element such that the plunger is guidable from the starting state to the activating state,
• wherein the guide is provided with a first channel part which substantially extends parallel to the throughfeed channel for guiding the plunger in a forward direction, a second channel part configured to carry the guide element therein at an angle to the throughfeed channel in an at least partially rearward direction such that the spring mechanism can carry the plunger to the activating state, and a wall part for carrying the guide element from the first to the second channel part, and
• wherein the first channel part is provided with a resistance threshold with a resistance height which is smaller than the height of the guide arm.