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Device for connecting a cannula made from a flexible material with a tube

A technology for connecting elastic materials and pipes, which is applied in the direction of pipes/pipe joints/fittings, circulation auxiliary devices, connecting pipes, etc., and can solve problems such as structural schemes that cannot be freely selected

Inactive Publication Date: 2009-10-28
BERLIN HEART GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the structural scheme of the output sleeve head cannot be freely selected

Method used

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  • Device for connecting a cannula made from a flexible material with a tube
  • Device for connecting a cannula made from a flexible material with a tube
  • Device for connecting a cannula made from a flexible material with a tube

Examples

Experimental program
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Effect test

Embodiment Construction

[0066] Figure 1a , 1b , 1c exemplarily shows a device according to the invention which produces a connection between a sleeve 7 and a pipe 5 . A pipe connection designed here as a hose connection 4 is pushed into a sleeve end 71 ( Figure 1c ). On the sleeve end 71 , a reinforcement profile 6 is fixedly connected to the sleeve end 71 . A spacer ring 2 is arranged in the groove 61 of the reinforcement profile 6 . A jaw ring 1 is used on a base ring 15 (see figure 2 ) on the claw 11 arranged on the locking ring 3 stuck. Here, the jaw ring 1 is pressed against the spacer ring 2 and the spacer ring is pressed onto a collar 62 of the reinforcement profile 6 so that a sealing connection is formed with an annular end face 36 of the locking ring 3 . The sealing of the sleeve 7 relative to the hose connection 4 is achieved by the elastic widening of the sleeve end 71 when the sleeve end 71 is pushed onto the hose connection 4, the resulting radial sealing pressure, the radial T...

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PUM

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Abstract

A device for connecting or disconnecting cannula to or from a tube. The connection is uncomplicted, quick, safe and provides reproducible conditions in a surgical procedure for connecting to a blood pump that assists the heart or replaces the heart. A nipple ( 4 ) is formed on the tube ( 5 ) which is inserted into the cannula ( 7 ). A rotatable claw ring ( 1 ), which is arranged on a cannula end ( 71 ) for displacement to a stop ( 2, 62 ), can be rotatably joined with a locking ring ( 3 ) which is secured to a tube end ( 51 ) by axial movement and latching engagement with the locking ring ( 3 ). The connection is releasable by rotating the claw ring ( 1 ) and pulling the claw ring ( 1 ) and the cannula apart in an axial direction.

Description

technical field [0001] The invention relates to a device for connecting a sleeve (or hose) made of elastic material to a pipe, wherein a coupling mounted on the pipe is inserted into the sleeve. Background technique [0002] Devices for connecting sleeves and pipes are known. Lock nuts are often used to achieve pipe or bushing connections. Here, the union nut is used in combination with a collet or a hose connection (Olive) (butt connection) in order to connect the pipes or sleeves to one another. When the nut is tightened, a radial force is transmitted to the bushing. Axial security and radial sealing can be achieved with a lock nut. This connection technique is currently used in particular in order to connect an implantable blood pump, in which a tube, usually of metal, is connected to a sleeve made of an elastic material. [0003] This known type of connection between the blood pump and the cannula and the tube has the following disadvantages: [0004] -Threads requi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L37/084F16L37/10A61M39/02A61M1/10A61M1/36A61M39/00A61M39/10A61M39/12F16L1/00F16L37/098
CPCA61M1/1008A61M1/3653A61M2039/1027A61M2001/3659F16L37/0985A61M39/1011A61M2001/1008A61M1/3659A61M39/12A61M1/10A61M60/178A61M60/205A61M60/859
Inventor F·奥特
Owner BERLIN HEART GMBH
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