Source: http://www.google.com/patents/US20030105434?dq=5166694
Timestamp: 2017-01-17 22:38:11
Document Index: 751005570

Matched Legal Cases: ['art 50', 'art 50', 'art 50', 'art 50', 'art 50', 'art 62', 'art 62', 'art 40', 'art 50', 'art 50', 'art 50', 'art 50', 'art 50', 'art 50', 'art 50', 'art 50', 'arts 50', 'art 501', 'art 50', 'art 501', 'art 501', 'art 50']

Patent US20030105434 - Protection cap assembly for syringes - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA syringe device includes a barrel having a needle cannular extending from an end plate on a first end thereof. A plunger is movably inserted into a second end of the barrel. A protection cap assembly comprises a first section and a second section which is mounted to a first end of the first section....http://www.google.com/patents/US20030105434?utm_source=gb-gplus-sharePatent US20030105434 - Protection cap assembly for syringesAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS20030105434 A1Publication typeApplicationApplication numberUS 09/996,889Publication dateJun 5, 2003Filing dateNov 30, 2001Priority dateNov 30, 2001Also published asCN2566871YPublication number09996889, 996889, US 2003/0105434 A1, US 2003/105434 A1, US 20030105434 A1, US 20030105434A1, US 2003105434 A1, US 2003105434A1, US-A1-20030105434, US-A1-2003105434, US2003/0105434A1, US2003/105434A1, US20030105434 A1, US20030105434A1, US2003105434 A1, US2003105434A1InventorsWei-Ting ChangOriginal AssigneeWei-Ting ChangExport CitationBiBTeX, EndNote, RefManReferenced by (3), Classifications (5) External Links: USPTO, USPTO Assignment, EspacenetProtection cap assembly for syringes
US 20030105434 A1Abstract
A syringe device includes a barrel having a needle cannular extending from an end plate on a first end thereof. A plunger is movably inserted into a second end of the barrel. A protection cap assembly comprises a first section and a second section which is mounted to a first end of the first section. A second end of the first section is movably mounted to a locking tip on the first end of the barrel. A stop member is connected to the first end of the first part and the needle cannula extends through an aperture in the first end of the first part. The stop member has a bounce force to contact the needle cannula so that when the first part is slid away from the locking tip, the needle cannula is received in the first part and the aperture is closed by the stop member. Images(9) Claims(7)
FIELD OF THE INVENTION [0001] The present invention relates to a protection cap assembly for mounting on the locking tip of syringe and includes two sections and one of which has a stop member to avoid the needle cannula from penetrating therefrom after the syringe is used. BACKGROUND OF THE INVENTION [0002] A conventional hypodermic syringe and generally includes a barrel with a locking tip on a first end thereof and a needle cannula is fixed to the locking tip. A plunger is movably received in the barrel so as to push the medicine in the barrel from the needle cannula. A protection cap is used to mount to the locking tip so as to receive the needle cannula in the cap. It is a serious concern that the needle cannula could hurt the medical personnel during removing the protection cap from the locking tip before proceeding syringing and/or re-mounting the protection cap to the locking tip after the syringing process is finished. [0003] The present invention intends to provide a protection cap assembly by which the risk of injury of medical personnel can be reduced. SUMMARY OF THE INVENTION [0004] In accordance with one aspect of the present invention, there is provided a syringe device which comprises a barrel having a locking tip extending from an end plate on a first end of the barrel and a plunger is movably inserted into a second end of the barrel. A needle cannula is fixed to the locking tip. A protection cap assembly comprises a first section and a second section which is mounted to a first end of the first section. A second end of the first section is an open end and movably mounted to the locking tip and a stop member is connected to the first end of the first part. An aperture is defined through the first end of the first section and the needle cannula extends through the aperture. The stop member has a bounce force to contact the needle cannula extending through the aperture. [0005] The primary object of the present invention is to provide a syringe device wherein the needle cannula is received in a protection cap after being used. [0006] The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS [0007] [0007]FIG. 1 is an exploded view to show the protection cap assembly of the present invention and a syringe device; [0008] [0008]FIG. 2 is a cross sectional view to show the protection cap assembly and the syringe device before being used; [0009] [0009]FIG. 3 shows that the stop member contacting the needle cannula; [0010] [0010]FIG. 4 shows that the needle cannula is received in the first section of the protection cap assembly; [0011] [0011]FIG. 5 shows that the needle cannula is received in the first section of the protection cap assembly and a second part is to be connected to the first part; [0012] FIGS. 6-9 are cross sectional view to respectively show various embodiments of the connections of the stop member and the first part; [0013] [0013]FIG. 10 is a perspective view to show the first part and the stop member of the embodiment as shown in FIG. 9, and [0014] [0014]FIG. 11 shows that two first parts are used to receive a longer needle cannula.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0015] Referring to FIGS. 1 and 2, the syringe device of the present invention comprises a barrel 10 having a base 11 extending from an end plate on a first end of the barrel 10 and a locking tip 20 is connected to the base 11, A needle cannula 30 is fixed to the locking tip 20. A plunger 12 is movably inserted into the barrel 10 from a second of the barrel 10. [0016] A protection cap assembly comprises a first section 50 and a second section 40 which is mounted to a first end of the first section 50. A second end of the first section 50 is an open end and has longitudinal recesses 53 defined in the second end of the first part 50 so as to form a flexible strip portion 54 which clamps the root of the locking tip 20. The first part 50 is movably mounted to the locking tip 20 and a slot 52 is defined through the first section 50. The locking tip 20 has a boss 21 extending radially from an outer periphery thereof and the boss 21 is engaged with the slot 52 so as to prevent the first part 50 from being separated from the locking tip 20. [0017] An aperture 500 is defined through the first end of the first section 50 and a flexible member 70 is connected to the first end of the first part 50. A passage 71 is defined through the flexible member 70 and located in alignment with the aperture 500 in the first part 50. The needle cannula 30 extends through the aperture 500 and the passage 71. [0018] Referring to FIG. 4, a stop member 60 is an L-shaped member and includes an insertion 61 inserted in the flexible member 70, and a cover part 62 which is perpendicular to the insertion 61 and has semi-circular notch 620 defined in a side thereof. The needle cannula 30 is engaged with the notch 620. The cover part 62 has a bounce force and a tendency to cover the passage 71 up. [0019] Before the syringe device is used, the needle cannula 30 is received in the second part 40 and is ready to use by removing the second part 50. [0020] Referring to FIGS. 4 and 5, after the syringe device is used, the first part 50 is slid away from the locking tip 20 and to receive the needle cannula 30 in the first part 50. The stop member 60 is rotated when the needle cannula 30 is received in the first part 50 to cover the passage 71 up. [0021] The stop member 60 can be connected to an inside of the first end of the first part 50 as shown in FIG. 6. FIG. 7 shows that the flexible member 70 and the stop member 60 are installed in the inside of the first end of the first part 50. FIG. 8 shows the stop member 60 is connected to the other end of the flexible member 70 as shown. FIGS. 9 and 10 show that two longitudinal grooves 511 are defined in the first end of the first part 50 so as to form two partitions 600, 601 separated by the grooves 511. The stop member 60 is composed by the two partitions 600, 601. Each of the two partitions 600, 601 has a plate perpendicular to a longitudinal axis of the first part 50 and the two plates of the two partitions 600, 601 can be pulled apart to allow the needle cannula 30 (not shown) to extend therebetween. FIG. 11 shows that two first parts 50, 501 are used to receive a longer needle cannula 30, and only the outer most first part 501 has the stop member 60. A hook 110 extends from the base 11 so as to hook the locking tip 20 which can be disengaged from the base 11 by releasing the hooking of the hook 110. The first part 50 connected to the hook 110 has a boss 55 and the first part 501 has a slot 5010 in which the boss 55 is received to limit the first part 501 from being separated from the first part 50. [0022] While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention. Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8545453 *Dec 6, 2011Oct 1, 2013Panasonic CorporationInjection needle protector, injection needle unit, and injector to which this injection needle unit is mountedUS20050101329 *Dec 3, 2004May 12, 2005Gallagher Michael D.Apparatus and method for extending the coverage area of a licensed wireless communication system using an unlicensed wireless communication systemUS20120150124 *Dec 6, 2011Jun 14, 2012Shinichi YasuiInjection needle protector, injection needle unit, and injector to which this injection needle unit is mounted* Cited by examinerClassifications U.S. Classification604/198International ClassificationA61M5/32Cooperative ClassificationA61M2005/325, A61M5/3271European ClassificationA61M5/32C2H5RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services