Device for handling a catheter
View Patent ↗The invention relates to a device for handling a catheter with an elongate valve body ( 12 ), a lever arm ( 26 ) which is, prestressed by means of a spring element and mounted pivotably on the valve body ( 12 ) so as to be pivotable from a first end position into a second end position ( 34 ) counter to the prestressing force of the spring element, a pressure piston ( 24 ) which is received in the valve body ( 12 ) and can be moved in the longitudinal direction by means of the lever arm ( 26 ) in order to open a sealing element in the valve body ( 12 ) when the lever arm ( 26 ) is moved in the direction of the second end position ( 34 ), and a catch mechanism ( 40 ) which has an arresting arrangement ( 42 ) and a catch tongue ( 50 ) interacting therewith in order to hold the lever arm ( 26 ) in at least one catching position. The catch mechanism ( 40 ) is designed in such a way that the arresting arrangement ( 42 ) and the catch tongue ( 50 ) come out of engagement when the second end position ( 34 ) of the lever arm ( 26 ) is reached, so that the spring element guides the lever arm ( 26 ) back into the first end position ( FIG. 1 ).
1. A device for handling a catheter comprising:
a valve body;
a lever arm which is prestressed by means of a spring element and mounted pivotably on the valve body so as to be pivotable from a first end position into a second end position counter to the prestressing force of the spring element,
a pressure piston which is received in the valve body and can be moved in a longitudinal direction by means of the lever arm in order to open a sealing element in the valve body when the lever arm is moved in the direction of the second end position, and
a catch mechanism comprising an arresting arrangement with a front side having a catch nose and a rear side, and a catch tongue interacting with the catch nose in order to hold the lever arm in at least one catching position intermediate said first and second end positions,
wherein the catch mechanism further comprises a guide surface adapted to guide the catch tongue from the front side to the rear side of said arresting arrangement when the second end position of the lever arm is reached, so that the catch tongue cannot enter into engagement with the catch nose and the spring element guides the lever arm along the rear side back into the first end position.
2. The device according to claim 1 , wherein the arresting arrangement has a number of catch noses which are arranged along a concentric line around the fulcrum of the lever arm in order to define a number of catching positions of the lever arm between the first and second end positions.
3. The device according to claim 1 , wherein said guide surface extends at an angle from said front side to said rear side of said arresting arrangement.
4. The device according to claim 2 , wherein said guide surface extends at an angle from said front side to said rear side of said arresting arrangement.
5. The device according to claim 2 , wherein the catch tongue and the catch noses extend transversely to the longitudinal direction of the valve body.
6. The device according to claim 1 , wherein the lever arm has an elongated hole, through which a lateral tube starting from the valve body extends.
7. The device according to claim 1 , wherein the valve body and the arresting arrangement are designed as a one-piece component.