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Medical puncturing device

a puncturing device and medical technology, applied in the field of medical puncturing devices, can solve the problems of unintended exposure to the needle tip after the needle, complicated construction, cumbersome assembly process, etc., and achieve the effect of preventing the risk of causing any injury, simple construction, and reliable function

Inactive Publication Date: 2005-04-28
UNOMEDICAL AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a medical puncturing device that has a rigid needle for puncturing and a pivotable shield for covering the needle. The device has simple construction and reliable function to prevent injury during disassembly and discarding. The shield has a recess for accommodating the needle and the locking means on the handle and shield interlock to secure the device. The shield also has an operating handle for easy handling. The hub is made of plastics material and has a reduced rigidity area for easy gripping. The device can be used with a soft cannula in a human body.

Problems solved by technology

The use of a medical puncturing device comprising a rigid needle may lead to some disadvantages during use of such device, viz. the potential danger of unintended exposure to the needle tip after the needle has-been discarded.
Although these previously known medical puncturing devices to some extent give a satisfactory result with respect to the prevention of unintended and harmful needle sticks they all have a complicated construction requiring a cumbersome assembling process.

Method used

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Examples

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Embodiment Construction

[0028] From FIG. 1 a preferred embodiment of the medical puncturing device appears. The device comprises a rigid needle 1 mounted in a needle hub 2. The needle is at the end opposite the needle hub 2 pointed or tapered so as to facilitate puncturing e.g. by the insertion of a soft cannula. The needle hub comprises a handle part 3, which is at one side connected to a shield part 4 via a hinge 5 formed as a material area with a reduced thickness. The shield part 4 has the shape of a half tube 6 having at the edges at both sides flanges 7,8. The shield part 4 comprises a pivoting handle 17. At the opposite side of the needle hub 2 in relation to the needle connection point the needle hub 2 comprises two arms 9,10 having barbs 11,12 at their opposed sides 15,16.

[0029] From FIG. 2 the puncturing device appears in a side view more clearly showing the transition area 5 where the shield part 4 is pivoted in relation to the handle part 3 by a pivoting action on the pivoting handle 17 by one...

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Abstract

The invention relates to a medical puncturing device comprising a rigid needle being at one end adapted for facilitating the puncturing and comprising at the opposite end a hub, the hub comprising a handle part and a shield part being pivotable in relation to the handle part and further comprising locking means on the shield part and the handle part, the locking means being adapted to interlock the shield and the handle part in a pivoted position of the shield part where the rigid needle is covered by this.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a medical puncturing device e.g. for use in connection with the insertion of a soft cannula where the soft cannula e.g. forms part of a infusion device for subcutaneous delivery of a medication or a therapeutic fluid by means of an external infusion system and more particularly to a medical puncturing device capable of being discarded without the danger of causing unintended harmful injuries to persons afterwards. [0002] The medical puncturing device will in the following be explained in connection with the field of subcutaneous infusion devices. Such infusion devices are generally known in the art for delivering a medication or a therapeutic fluid to a subcutaneous site in a patient. Such devices commonly comprise a soft tubular cannula extending from a housing adapted to receive the desired medication via means, e.g. disconnectable means, for suitable connection to further components of the infusion system. The po...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M5/158A61M5/32A61M25/06
CPCA61M5/3216A61M25/0631Y10S128/919A61M2005/1585A61M2005/1581
Inventor NIELSEN, JAN WILLUMLARSEN, BJORN GULLAKMATHIASEN, ORLADELZAC, MARCTEISEN-SIMONY, CLAUDE
Owner UNOMEDICAL AS
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