needle with safety device

A safety device and sealing device technology, which can be used in needles, devices introduced into the body, other medical devices, etc., and can solve the problem of long safety devices.

CN103298509BActive Publication Date: 2016-01-20B BRAUN MEDICAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-01-20

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Abstract

The invention relates to a needle (10) having a distal end (11), a proximal end (12) and a stem (13) extending between them, and a tip (14) at its distal end (11). The needle (10) is provided with a safety device (20) arranged to be able to move between a first position in the proximal region of the stem (13) and a second position at the distal end (11) of the stem slide on the trunk (13). The safety device also includes a housing (21, 22) having a proximal opening (23) and a distal opening (24) for passage of the stem of a needle, the tip of the needle when the safety device is in the second position (14) is inside the housing. The device comprises closure means (30) which close the distal opening (24) of the housing when the tip of the needle is located within the housing.
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Description

technical field

[0001] The present invention relates to a needle for infusing and aspirating fluids with a safety device protecting the needle tip from damage. Background technique

[0002] Different types of needles have been used in medicine for injecting fluids into a patient's body or for aspirating fluids from a patient's body. All drugs for healthcare personnel present a significant risk of injury, especially when they become contaminated with blood after use. Therefore, it is important to prevent injury when removing a used needle in order to prevent infection.

[0003] Various safety devices for needles have been proposed in the past, which make the needle, especially the needle point, which is very dangerous when removed, safe. However, the safety and comfort of use are obviously not enough.

[0004] Document FR2740043 describes a protective device for a hypodermic needle comprising two flexible sheets at the proximal end of the needle which is first arranged per...

Examples

Embodiment Construction

[0027] figure 1 An exploded view of a needle 10 with a safety device 20 according to the invention is shown. Considering the use of an implantable chamber, a representative needle is a Huber needle, which is used to supply a drug to a patient. The needle 10 has a curved needle portion 16 on a tip 14 for perforating the membrane of the implantable chamber.

[0028] The needle 10 has a distal end 11 with a curved tip 14 and a proximal end 12 provided with a base 15 .

[0029] Furthermore, the needle 10 is provided with a safety device 20 slidably arranged on the stem 13 of the needle. The safety device 20 is slidable thereon from a first position at the proximal end 12 of the needle stem 13 before use of the needle to a second position at the distal end 11 of the needle 10 after use (the tip 24 of the needle is secured to in the second position).

[0030] The safety device 20 is composed of a housing including a housing cover 21 and a housing bottom 22 . The housing cover 2...