Source: https://patents.google.com/patent/EP1862193B1/en
Timestamp: 2020-01-27 02:58:11
Document Index: 729329718

Matched Legal Cases: ['arts 5', 'arts 5', 'arts 5', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'arts 5', 'arts 5']

EP1862193B1 - Indwelling needle device - Google Patents
Indwelling needle device Download PDF
EP1862193B1
EP1862193B1 EP06713652A EP06713652A EP1862193B1 EP 1862193 B1 EP1862193 B1 EP 1862193B1 EP 06713652 A EP06713652 A EP 06713652A EP 06713652 A EP06713652 A EP 06713652A EP 1862193 B1 EP1862193 B1 EP 1862193B1
EP06713652A
EP1862193A4 (en
EP1862193A1 (en
2005-03-24 Priority to JP2005086545 priority Critical
2006-02-08 Priority to JP2006031500A priority patent/JP4622876B2/en
2006-02-14 Application filed by JMS Co Ltd filed Critical JMS Co Ltd
2006-02-14 Priority to PCT/JP2006/302511 priority patent/WO2006100847A1/en
2007-12-05 Publication of EP1862193A1 publication Critical patent/EP1862193A1/en
2009-04-22 Publication of EP1862193A4 publication Critical patent/EP1862193A4/en
2012-10-17 Publication of EP1862193B1 publication Critical patent/EP1862193B1/en
An indwelling needle device according to the preamble of claim 1 is known from JP 10 258123 A & US 5 893 844 A .
An indwelling needle device of the present invention is claimed in claim 1 and includes: a shield tube in a substantially cylindrical form; a flexible outer needle fixed at a front end part of the shield tube; a hub inserted in a lumen of the shield tube so as to be movable in an axis direction, an infusion tube being attached to a rear end of the hub; and a rigid inner needle that is fixed at a front end part of the hub and that is insertable into a lumen of the outer needle, whereby when the hub is positioned in a front end part of the lumen of the shield tube, the inner needle penetrates the lumen of the outer needle and is projected out, and the inner needle can be housed in the lumen of the shield tube by moving the hub toward a rear end side of the lumen of the shield tube.
[FIG. 1] FIG. 1 is a cross-sectional view showing an indwelling needle device according to Embodiment 1 of the present invention.
[FIG. 2] FIG. 2 is a cross-sectional view showing a state of the indwelling needle device when it is indwelled or when it is disposed.
[FIG. 3] FIG. 3 is an enlarged perspective view showing a structure of an inner hub of the indwelling needle device.
[FIG. 4] FIG. 4 is an enlarged perspective view showing a structure of an inner hub of an indwelling needle device according to Embodiment 2 of the present invention.
[FIG. 5] FIG. 5 is a cross-sectional view showing the indwelling needle device.
[FIG. 6] FIG. 6 is a cross-sectional view showing a state of the indwelling needle device when it is indwelled or when it is disposed.
[FIG. 7A] FIG. 7A is a front view showing a structure of the inner needle of the indwelling needle device according to Embodiment 3 of the present invention.
[FIG. 7B] FIG. 7B is a cross-sectional view of the inner needle.
[FIG. 7C] FIG. 7C is a cross-sectional view showing an effect of the inner needle.
"1" denotes an inner needle made of a metal, which is fixed at a front end part of an inner hub 2 made of a resin. A tube 3 is attached to a rear part of the inner hub 2. "4" denotes a winged shield, which is composed of a resin-made shield tube 4a in a substantially cylindrical shape, and left and right wing parts 5 and 6. The inner needle 1 and the inner hub 2 are inserted in a lumen of the shield tube 4a so as to be movable in the axis direction. The left and right wing parts 5 and 6 are provided at a front end part of the shield tube 4a, that is, at the end part on the side where the inner needle 1 is projected. The wing parts 5 and 6 are coupled with both lateral sides of an outer peripheral surface of the shield tube 4a, respectively, and have shapes that are symmetric with respect to the axis of the shield tube 4a. As a material for forming the shield tube 4a, a resin material having flexibility such as polyethylene, a vinyl chloride resin, or another elastomer can be used. As a material for forming the inner hub 2, polycarbonate, for example, can be used.
An enlarged perspective view of the structure of the inner hub 2 is shown in FIG. 3. It is clear from this drawing that a space between the outer peripheral surface of the front part 2a and the inner peripheral surface of the shield tube 4a communicates via the lateral penetration path 2e with the lumen 10 of the intermediate part of the inner hub 2. Furthermore, it is clear also from the drawing that a pair of side walls are formed on both sides of the lateral penetration path 2e, and each of outer peripheral surfaces of the side walls is recessed so that the pair of engagement recesses 2b are formed. At a front-end-side position on the engagement recess 2b, a large-diameter part 2f is formed, which has the diameter of the intermediate part of the inner hub 2. In the large-diameter part 2f, axis-direction grooves 16 are formed, which extend from the front part 2a to the engagement recess 2b.
In the initial state shown in FIG. 1, the inner needle 1 is projected out of the outer needle 8 so as to be ready to puncture. In this state, the engagement recesses 2b and the front-end-side engagement projection 12a are engaged with each other, and the inner hub 2 is held at this position with respect to the shield tube 4a. Besides, since the front part 2a of the inner hub 2 has a small diameter, the front part 2a is fitted in the lumen of the rear part of the outer hub 7. This configuration makes it possible to minimize the space formed between the outer surface of the inner hub 2 and the inner surface of the shield tube 4a in this initial state. After puncturing in this state, for indwelling, the inner needle 1 is retracted so as not to be projected out of the outer needle 8, as shown in FIG. 2.
Normally, the indwelling needle device is used in a state as shown in FIG. 1. In this initial state, the engagement recesses 2b and the front-end-side engagement projection 12a are engaged with each other, whereby the inner hub 2 is held with respect to the shield tube 4a. This holding power is such that the initial state is maintained and the inner needle 1 is not retracted easily. The puncturing operation is carried out by holding the wing parts 5 and 6 upward along the outer surface of the shield tube 4a so that they are joined, and gripping the same in this state. By gripping the wing parts 5 and 6, the gripping power is transmitted to the shield tube 4a, thereby pressing and deforming the shield tube 4a. This causes a frictional contact between the inner peripheral surface of the shield tube 4a and the inner hub 2, with which the inner needle 1 is held with a sufficient power. Further, since this increases the holding power due to the engagement recesses 2b and the front-end-side engagement projection 12a, the inner needle 1 is held with a sufficient power, whereby the puncturing operation can be carried out successfully
The state of the indwelling needle device according to FIG. 5 is identical to the state of use (initial state) shown in FIG. 1 in the case of Embodiment 1. More specifically, the inner needle 1 is projected out of the outer needle 8 so as to be puncturable, and the front-end-side engagement recesses 2b and the front-end-side engagement projection 12a are engaged with each other, whereby at this position the inner hub 2 is held with respect to the shield tube 4a.
The state shown in FIG. 6 corresponds to the state shown in FIG. 2 in Embodiment 1, in which the inner needle 1 is housed in the shield tube 4a. However, unlike Embodiment 1, the rear-end-side engagement recess 2g and the rear-end-side engagement projection 12c are engaged with each other, whereby the inner hub 2 is held with respect to the shield tube 4a. The reason why the rear-end-side engagement recess 2g is provided for the above-described holding in this state is as described below.
When a "priming operation" for filling the indwelling needle device with physiological saline or the like is carried out, the operation is carried out in the initial state in which the inner hub 2 is positioned on the front end side in the shield tube 4a. However, if the side hole 1a is not provided, the space formed between the inner surface of the outer needle 8 and the outer surface of the inner needle 1, and the space formed between the inner surface of the shield tube 4a and the outer surface of the inner hub 2 in an area on the front end side with respect to the lateral penetration path 2e are difficult to prime, and air easily remains therein. This is because it is very difficult for air to pass through between the inner surface of the front end of the outer needle 8 and the outer surface of the inner needle 1, which are in close contact with each other. As a result, air remains in the device when the inner needle 1 is housed, and there is a possibility that this air enters the blood vessel of a patient.
An indwelling needle device comprising:
a shield tube (4a) in a substantially cylindrical form;
a flexible outer needle (8) fixed at a front end part of the shield tube (4a);
a hub (2) inserted in a lumen of the shield tube (4a) so as to be movable in an axis direction, an infusion tube (3) being attached to a rear end of the hub (2); and
a rigid inner needle (1) that is fixed at a front end part of the hub (2) and that is insertable into a lumen of the outer needle (8),
whereby when the hub (2) is positioned in a front end part of the lumen of the shield tube (4a), the inner needle (1) penetrates the lumen of the outer needle (8) and is projected out, and the inner needle (1) can be housed in the lumen of the shield tube (4a) by moving the hub (2) toward a rear end side of the lumen of the shield tube (4a),
the hub (2) is provided with a lateral penetration path (2e) that penetrates from one side of a periphery to the other side of the periphery through a lumen of the hub (2), so that a space formed between an outer peripheral surface of the hub (2) and an inner peripheral surface of the shield tube (4a) communicates with the lumen of the hub (2) via the lateral penetration path (2e),
the hub (2) is provided with a large-diameter part (2f) and a rear part (2d) formed in the rear of the large-diameter part (2f), with the lateral penetration path (2e) being interposed therebetween, in which the large-diameter part (2f) and the rear part (2d) have an outer diameter to be fitted in the lumen of the shield tube (4a),
the large-diameter part (2f) is provided with axis-direction grooves (16) through which spaces in front and behind the large-diameter part (2f) communicate with each other,
a sealing section is provided on the outer peripheral surface of the rear part (2d) of the hub (2), so as to keep liquid tightness of the space formed between the outer peripheral surface of the hub (2) and the inner peripheral surface of the shield tube (4a),
engagement recesses (2b) are formed by side wall portions on both sides of the lateral penetration path (2e) in the hub (2) at the same position in the axis direction as the position of the lateral penetration path (2e) in the hub (2).
The indwelling needle device according to claim 1 or 2, wherein
a rear-end-side engagement projection (12b) is formed at a rear-end-side position on the inner peripheral surface of the shield tube (4a), so as to be engageable with the engagement recesses (2b) in a state in which the inner needle (1) is housed in the lumen of the shield tube (4a), whereby the hub (2) is held with respect to the shield tube (4a), preventing the inner needle (1) from being re-projected,
The indwelling needle device according to claim 1, wherein
the shield tube (4a) further includes a front-end-side engagement projection (12a) at a front-end-side position on the inner peripheral surface of the shield tube (4a), the front-end-side engagement projection (12a) being engageable with the engagement recesses (2b) of the hub (2) in a state in which the inner needle (1) is projected out of the outer needle (8).
The indwelling needle device according to claim 1 or 3, wherein
a rear-end-side engagement projection (12c) is formed at a rear-end-side position on the inner peripheral surface of the shield tube (4a), so as to be engageable with a rear-end -side engagement recess (2g), which is formed on the outer peripheral surface of the hub (2) at a position on a rear end side with respect to the sealing section, in a state in which the inner needle (1) is housed in the lumen of the shield tube (4a).
The indwelling needle device according to claim 3 or 4, wherein
the front-end-side engagement projection (12a) and the rear-end-side engagement projection (12b, 12c) are formed as circular projections extending in a circumferential direction of the inner peripheral surface of the shield tube (4a).
The indwelling needle device according to any one of claims 1 to 5, wherein
the sealing section is composed of a circular groove (2c) formed on the outer peripheral surface of the hub (2) and an O-ring (11) placed in the circular groove (2c).
The indwelling needle device according to any one of claims 1 to 6, wherein
a diameter of the lumen of the hub (2) at a position on the rear end side with respect to a position at which the lumen communicates with the lateral penetration path (2a) is greater than a diameter of the lumen of the inner needle (1), and equal to or smaller than an inner diameter of the infusion tube (3).
The indwelling needle device according to any one of claims 1 to 7, wherein
the inner needle (1) has a side hole (1a) in its front end part, the side hole (1a) being positioned on the rear end side with respect to a position at which a front end part of the outer needle (8) is in contact with the inner needle (1) in a state in which a projected portion of the inner needle (1) out of an end of the outer needle (8) has the maximum length.
EP06713652A 2005-03-24 2006-02-14 Indwelling needle device Active EP1862193B1 (en)
JP2005086545 2005-03-24
JP2006031500A JP4622876B2 (en) 2005-03-24 2006-02-08 Indwelling needle device
PCT/JP2006/302511 WO2006100847A1 (en) 2005-03-24 2006-02-14 Indwelling needle device
EP1862193A1 EP1862193A1 (en) 2007-12-05
EP1862193A4 EP1862193A4 (en) 2009-04-22
EP1862193B1 true EP1862193B1 (en) 2012-10-17
ID=37023532
EP06713652A Active EP1862193B1 (en) 2005-03-24 2006-02-14 Indwelling needle device
US (1) US7682339B2 (en)
EP (1) EP1862193B1 (en)
JP (1) JP4622876B2 (en)
KR (1) KR100934085B1 (en)
CN (1) CN101146568B (en)
CA (1) CA2602904C (en)
WO (1) WO2006100847A1 (en)
JP2009142492A (en) * 2007-12-14 2009-07-02 Jms Co Ltd Indwelling needle device
KR100864326B1 (en) * 2008-01-22 2008-10-17 송경진 Reversible resin needle set for one time use
JP5108580B2 (en) * 2008-03-26 2012-12-26 テルモ株式会社 Indwelling needle
JP5262262B2 (en) * 2008-04-16 2013-08-14 株式会社ジェイ・エム・エス Indwelling needle device
JP5637350B2 (en) * 2009-12-14 2014-12-10 株式会社ジェイ・エム・エス Needle device
WO2011074372A1 (en) 2009-12-14 2011-06-23 株式会社ジェイ・エム・エス Needle device
JP5532892B2 (en) * 2009-12-14 2014-06-25 株式会社ジェイ・エム・エス Needle device
CN104334225B (en) * 2012-05-31 2017-03-22 株式会社Jms Indwelling needle device
JP2013248160A (en) * 2012-05-31 2013-12-12 Jms Co Ltd Indwelling needle device
WO2018174256A1 (en) * 2017-03-23 2018-09-27 テルモ株式会社 Catheter assembly
JP3073713B2 (en) * 1997-01-17 2000-08-07 ミサワ医科工業株式会社 Indwelling needle set
CN2341658Y (en) 1998-10-07 1999-10-06 陈永国 Venous retaining needle
JP4404511B2 (en) * 1999-08-12 2010-01-27 ローレンス・エイ・リン Lure receiving vascular access system
JP2001245980A (en) * 2000-03-08 2001-09-11 Mitsubishi Pencil Co Ltd Safe indwelling needle
JP2008513063A (en) * 2004-09-16 2008-05-01 インビロ メディカル デバイシーズ リミテッド Disposable safety syringe to prevent needle stick injury and reuse
2006-02-08 JP JP2006031500A patent/JP4622876B2/en active Active
2006-02-14 CN CN 200680009638 patent/CN101146568B/en active IP Right Grant
2006-02-14 EP EP06713652A patent/EP1862193B1/en active Active
2006-02-14 US US11/887,038 patent/US7682339B2/en active Active
2006-02-14 WO PCT/JP2006/302511 patent/WO2006100847A1/en active Application Filing
2006-02-14 CA CA 2602904 patent/CA2602904C/en not_active Expired - Fee Related
2006-02-14 KR KR1020077022698A patent/KR100934085B1/en not_active IP Right Cessation
EP1862193A4 (en) 2009-04-22
KR100934085B1 (en) 2009-12-24
CA2602904C (en) 2011-04-12
WO2006100847A1 (en) 2006-09-28
EP1862193A1 (en) 2007-12-05
KR20070110125A (en) 2007-11-15
JP2006297062A (en) 2006-11-02
US20090082733A1 (en) 2009-03-26
US7682339B2 (en) 2010-03-23
CA2602904A1 (en) 2006-09-28
CN101146568A (en) 2008-03-19
CN101146568B (en) 2010-11-10
JP4622876B2 (en) 2011-02-02
JP2012035094A (en) 2012-02-23 Method of making needle shielding device
JP2004523276A (en) 2004-08-05 Medical device connector fixture
Ref document number: 602006032498
Ipc: A61M0025060000
Ipc: A61M 25/06 20060101AFI20120524BHEP