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Catheter port

A technology of ports and catheters, applied in the field of catheter ports

Active Publication Date: 2013-03-27
FRESENIUS KABI DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the known port systems there is the problem that the housing parts for receiving the active substance must be made of active substance resistant material which is in contact with the patient Contacting housing parts must be made of biocompatible materials
However, the disadvantage is the more expensive bayonet fittings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 The port according to the invention is shown in section, figure 2 and 3 An exploded view of the lower housing part and insert is shown in enlarged view. The port, which can be about the size of a fingertip, has a flat housing 1 which is implanted subcutaneously in the patient. The subcutaneous upper side of the port housing 1 is identified with the reference number 2 , the lower side of the housing with the reference number 3 , the housing front side with the reference number 4 , and the housing rear side with the reference number 5 .

[0034] The housing 1 is formed in two parts. It has a lower housing part 6 and an upper housing part 7 . The upper and lower housing parts 6, 7 are injection molded parts made of biocompatible plastic material.

[0035] The lower housing part 6 has an upwardly open central recess 8 comprising an upper region 8A with a larger diameter and a lower region 8B with a smaller diameter, forming a step 9 . Fittingly inserted in ...

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PUM

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Abstract

The invention relates to a catheter port for supplying an active substance to an active site which is distant from the port. According to the invention, the housing (1) of the port is designed to have two parts, an upper housing part (7) and a lower housing part (6). The upper housing part (7) holds an insertion part (10) in a clamping manner in a housing recess (8) of the lower housing part (6), wherein a chamber (11) is arranged in said insertion part for receiving the active substance with the interpositioning of a punctured membrane (17) that can be pierced with an injection cannula. While the insertion part (10) and the chamber (11) can be manufactured from a material resistant to the active substance, preferably a heavier ceramics, the upper and lower housing parts may consist of a lighter biocompatible plastic material. It is advantageous that the patient only comes into contact with the upper and lower housing parts made of a biocompatible plastic material and not with the insertion part.

Description

technical field [0001] The invention relates to a catheter port for delivering an active substance to a remote site of action. [0002] Background technique [0003] To supply the active substance, it is known to implant a port under the patient's skin, to which port is connected a catheter leading to the site of action to which the active substance is to reach. The port has a chamber for receiving the active substance which is closed by a pierceable membrane located subcutaneously. To fill the chamber, the skin and the underlying membrane are pierced through a cannula and the active substance is injected into the chamber. The active substance then travels from the chamber through the catheter to the site of action. [0004] DE 4129782C1 describes a port having a housing with a lower recess for receiving an active substance and an upper recess for receiving a membrane. The membrane is held in the recess by a clamping ring which exerts pressure on the membrane causing the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M39/02A61M39/12
CPCA61M2039/0229A61M39/0208A61M39/12
Inventor M·奥斯特R·舒马赫
Owner FRESENIUS KABI DEUT GMBH