Source: http://www.google.com/patents/US7850652?dq=7751826
Timestamp: 2015-03-27 07:08:31
Document Index: 458899190

Matched Legal Cases: ['art 10', 'arts 10', 'art 10', 'art 12', 'arts 10', 'arts 10', 'arts 10', 'arts 10', 'art 10', 'art 12', 'arts 10', 'arts 10', 'arts 10', 'arts 10']

Patent US7850652 - Insertion head for medical or pharmaceutical applications - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn insertion head for medical use, including a housing formed by two housing parts, a puncture needle and a flexible cannula supported by the puncture needle, wherein before use the puncture needle and cannula are arranged in a protected position inside the housing and can be deployed by gripping the...http://www.google.com/patents/US7850652?utm_source=gb-gplus-sharePatent US7850652 - Insertion head for medical or pharmaceutical applicationsAdvanced Patent SearchPublication numberUS7850652 B2Publication typeGrantApplication numberUS 12/047,666Publication dateDec 14, 2010Filing dateMar 13, 2008Priority dateMar 14, 2007Fee statusPaidAlso published asCA2624064A1, CN101264364A, CN101264364B, DE502007005457D1, EP1970091A1, EP1970091B1, US20080228144Publication number047666, 12047666, US 7850652 B2, US 7850652B2, US-B2-7850652, US7850652 B2, US7850652B2InventorsJurg Liniger, Martin Wyss, Christian Thalmann, Michael WeibelOriginal AssigneeRoche Diagnostics International AgExport CitationBiBTeX, EndNote, RefManPatent Citations (95), Non-Patent Citations (15), Referenced by (3), Classifications (15), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetInsertion head for medical or pharmaceutical applications
In yet another preferred embodiment of the insertion head according to the present invention, the insertion device can be pivoted together with the puncture device from the protected position to the insertion position by the movement of the two housing parts or grip components relative to each other. Pivotability can be achieved in an inexpensive manner, permits the provision of compact insertion heads according to the present invention and is also operationally reliable. In some preferred embodiments, at the moment when the insertion device or puncture device pivots with its free end beyond the boundaries of the housing or beyond the underside of the housing or base, the longitudinal axis of the insertion device forms with the underside of the base an acute angle, e.g. an angle of less than 50�. In some preferred embodiments, the angle is less than 30�, such that, at the moment of pivoting out, the longitudinal axis or insertion device is at least substantially parallel to the boundary or underside of the housing or to the bearing surface of the base.
In embodiments of the insertion head in which the insertion device and the puncture device can be pivoted about a rotation axis from the protected position to the insertion position, it may be preferred if the longitudinal axis of the insertion device, which is pivoted about the rotation axis, intersects the rotation axis. If the longitudinal axis of the insertion device does not intersect the rotation axis, but passes it at a distance, the distance is smaller than the length of the insertion device. In some preferred embodiments, the distance is at most half as great as the intended depth of penetration or length of the insertion device. In preferred embodiments, the pivot angle of the insertion device is 90��10�. In similarly advantageous configurations, however, the pivot angle can also be smaller, e.g. if the insertion device is also pivoted relative to the base and, in the insertion position, is not at right angles to the underside of the base, but instead at an acute angle, e.g, at least 30�. Accordingly, in some preferred embodiments, the pivot angle in these configurations is at least about 30� or any intermediate value between about 30� and about 90�. In principle, the pivot angle can also be greater than 90�.
In the protected position, the insertion device 5 and the puncture device 15 are at an angle of approximately 10� with respect to the underside U of the base. The insertion device 5, and the part of the puncture device 15 protruding in the same direction from the retainer element 17 a, are received, in the joint protected position, in a seat area 14 substantially enclosed by the first grip part 10 and the base. With the insertion device 5 and puncture device 15 located in the protected position, this ensures that the user cannot injure himself on the puncture device 15 and, conversely, that the insertion device 5 and the puncture device 15 cannot be damaged or contaminated by careless handling. Since the base has only a narrow slit for passage of the insertion device 5 and puncture device 15, the seat 14 here also forms a screen, such that the user cannot see the puncture device 15 from the top of the insertion head or from side on. An adhesive pad provided on the underside of the base is likewise provided with a slit for passage of the insertion device 5 and the puncture device 15.
In the present case, the distance of the sliding blocks 44 from the pivot axis, and the curves of the guide slots 42, are chosen such that a displacement of the second grip component 12 by a few millimeters, for example 4 or 5 millimeters, causes a pivoting movement of the insertion device 5 and of the puncture device 15 from the protected position to the insertion position about a pivot angle of approximately 80�, whereupon the insertion device 5 and the puncture device 15 in the insertion position protrude approximately at right angles from the underside U of the base.
FIG. 5, in a perspective horizontal section obliquely from below, shows the upper portion of a second insertion head according to the present invention made up of two housing parts 10, 12 that can slide one inside the other. This is the upper portion of the first, outer housing part 10, into which the second, inner housing part 12, which is shown in a perspective side view in FIG. 6, is at least partially pushed when the insertion head is fully assembled. Apart from the differences explained below, the second insertion head according to the present invention has practically the same structure and the same functions as the insertion head shown in FIGS. 1 to 4. A difference from the previously described insertion head is that, in the present embodiment here, after the two housing parts 10, 12 have been pushed together and have caused the insertion device and the puncture device to pivot out from the protected position to the insertion position, they are temporarily interlocked in the pushed-together position, representing the insertion position, by a so-called �ballpoint pen mechanism�, and, after application of the insertion device and subsequent separation of the housing parts 10, 12 with puncture device 15 from the insertion device 5, base and cannula housing 17 b, which remain at the application site, the two housing parts 10, 12 are pressed further together in the direction of sliding together and are then released, whereupon they are pushed apart again by the force of a compression spring 66 that is increasingly pretensioned during the sliding together (see FIGS. 7 to 9), and the insertion device is then pivoted automatically back into a protected position inside the boundaries of the housing formed by the two housing parts 10, 12.
To obtain this �ballpoint pen mechanism�, the first housing part 10 has a guide groove 8 on the underside of its upper boundary wall, and a guide cylinder 18 supported by a resiliently elastic arm 17 on the top face of the second housing part 12 engages in said groove 8 and is guided in the latter as the two housing parts 10, 12 are pushed together. By comparing FIGS. 7 and 8, which show a bottom view of the two housing parts 10, 12 without insertion device, puncture device, base and cannula housing, firstly in a basic position that corresponds to the protected position of insertion device and puncture device (FIG. 7) and, secondly, in a position in which they are pushed together substantially completely, corresponding to the insertion position of insertion device and puncture device (FIG. 8), it will be seen that, when the two housing parts 10, 12 are pushed together counter to the force of the compression spring 66, the guide cylinder 18, whose position is indicated in FIGS. 7 to 9 in the form of a black dot for better clarity, is displaced horizontally counter to the spring force of the resiliently elastic arm 17 into a rear hollow 67 of the guide groove 8 (see arrows in FIG. 7), in which it is locked by the force of the compression spring 66 after release of the two housing parts 10, 12 (FIG. 8). In this way, with the insertion head fully assembled, the insertion and puncture device, which is pivoted from the protected position to the insertion position via the mechanical coupling, is also locked in the insertion position, and the insertion head is thus made ready for application.
FIG. 15 shows another embodiment of the insertion head according to the present invention. The insertion head comprises a second grip component 12 which can be pushed into a first grip component 10 counter to a spring force and then, as in the insertion head according to FIGS. 5 to 9, is locked reversibly onto the latter via a so-called �ballpoint pen mechanism� in such a way that, by pushing the two grip components 10, 12 together again, the locking can be released and the grip components 10, 12 can be moved apart again into the original position by the spring force. By pushing the second grip component 12 into the first grip component 10, a cannula housing 17 b is pivoted about a hinge 6. The cannula housing 17 b still carries the insertion device 5 and the puncture device 15 in the protected position. During the actuation of the second grip component 12, the sliding block 44 in the guide slot 42 is driven substantially downwardly in the direction of the hinge element 6, which leads to a rotational or pivoting movement of the insertion device and puncture needle. As soon as the sliding block or stud 44 has arrived in the curve area of the guide slot 42, the pivoting movement from the protected position to the insertion position is completed. The first grip component 10 is also equipped with a connection device 16 b which is in engagement with a corresponding section 49 (see FIG. 17) on the base to connect the base reversibly to the grip.
FIGS. 23 to 28 show various stages in the application of an insertion head according to the present invention with a similar function to the one discussed above. Here, however, the two grip components 10, 12, when first pushed together, which serves to pivot the insertion device 5 and puncture device 15 out from the protected position into the insertion position, are locked onto each other via a so-called �ballpoint pen mechanism�, in such a way that this locking can be cancelled by pushing the two grip components 10, 12 together again. The way in which such a �ballpoint pen mechanism� can be obtained has already been explained with reference to FIGS. 5 to 9 and is also familiar to persons skilled in the art, such that it does not have to be discussed in detail here. According to FIG. 23, the second grip component 12 is shown in a position in which it is protruding from the first grip component 10, in which position the insertion device 5 and puncture needle 15 are in their protected position. In the view according to FIG. 24, the second grip component 12 has been moved into the first grip component 10 and locked onto the latter, such that, as can be seen from FIG. 25, the insertion device and puncture device can be introduced into the body of a patient.
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No. 12/047,551.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8246588 *Jul 3, 2008Aug 21, 2012Unomedical A/SInsertion device with pivoting actionUS20100204653 *Jul 3, 2008Aug 12, 2010Unomedical A/SInsertion device with pivoting actionUS20130338594 *Mar 2, 2012Dec 19, 2013Debiotech S.A.Cannula inserter* Cited by examinerClassifications U.S. Classification604/164.08, 604/263, 604/174, 604/164.01International ClassificationA61M5/178Cooperative ClassificationA61M25/0606, A61M25/0612, A61M5/158, A61M2005/1583, A61M2005/1581, A61M2005/1587, A61M2005/1585European ClassificationA61M5/158, A61M25/06C, A61M25/06DLegal EventsDateCodeEventDescriptionMay 28, 2014FPAYFee paymentYear of fee payment: 4Feb 10, 2010ASAssignmentOwner name: ROCHE DIAGNOSTICS INTERNATIONAL AG,SWITZERLANDFree format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;US-ASSIGNMENT DATABASE UPDATED:20100211;REEL/FRAME:23920/695Effective date: 20090508Free format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;US-ASSIGNMENT DATABASE UPDATED:20100329;REEL/FRAME:23920/695Free format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;US-ASSIGNMENT DATABASE UPDATED:20100413;REEL/FRAME:23920/695Free format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;US-ASSIGNMENT DATABASE UPDATED:20100513;REEL/FRAME:23920/695Free format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;US-ASSIGNMENT DATABASE UPDATED:20100520;REEL/FRAME:23920/695Free format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;REEL/FRAME:23920/695Free format text: MERGER;ASSIGNOR:DISETRONIC LICENSING AG;REEL/FRAME:023920/0695Owner name: ROCHE DIAGNOSTICS INTERNATIONAL AG, SWITZERLANDMay 15, 2008ASAssignmentOwner name: DISETRONIC LICENSING AG, SWITZERLANDFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LINIGER, JURG;WYSS, MARTIN;THALMANN, CHRISTIAN;AND OTHERS;REEL/FRAME:020950/0856;SIGNING DATES FROM 20080411 TO 20080425Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LINIGER, JURG;WYSS, MARTIN;THALMANN, CHRISTIAN;AND OTHERS;SIGNING DATES FROM 20080411 TO 20080425;REEL/FRAME:020950/0856RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services