Source: https://patents.google.com/patent/US8308758B2/en
Timestamp: 2019-01-20 03:14:48
Document Index: 610515932

Matched Legal Cases: ['art 12', 'art 13', 'art 13', 'art 13', 'art 12', 'art 13', 'art 12', 'art 12', 'art 5', 'art 12', 'art.\n8', 'art.\n15']

US8308758B2 - Closure device - Google Patents
US8308758B2
US8308758B2 US10997858 US99785804A US8308758B2 US 8308758 B2 US8308758 B2 US 8308758B2 US 10997858 US10997858 US 10997858 US 99785804 A US99785804 A US 99785804A US 8308758 B2 US8308758 B2 US 8308758B2
US10997858
US20050080452A1 (en )
The present application is a continuation of U.S. application Ser. No. 10/166,725, filed Jun. 12, 2002, issued as U.S. Pat. No. 6,939,363, the entire contents of which are incorporated herein by reference.
FIG. 15 shows a sixth embodiment of a closure device.
A closure device according to the present invention is designed for use in connection with an existing medical device such as an introducer. During use of the closure device, this introducer is in position in the percutaneous opening in the wall of the blood vessel. Consequently, neither the insertion assembly nor the haemostatic material has access to the blood vessel through the incision channel; which is in contrast to closure devices known in the state of the art. In FIG. 2 is illustrated how the attachment member 6 of the closure device 1 is attached to an introducer 7, the distal end of which has been inserted into a vessel through a puncture hole in the vessel wall. Herein the term “introducer” is intended to encompass all types of medical devices having a distal portion that extends into a vessel and a proximal portion that extends out from a patient's skin (or other tissue). As should be apparent from the following description, such an introducer remains in position during the complete operation of the insertion assembly.
FIG. 8 shows the cross-section of the closure device 9, which is connected to an introducer 15 by means of the attachment member 14. The figure illustrates how the stationary part 12 and the retractable part 13 together provide the space in which the haemostatic material 10 is contained. FIG. 8 also shows spacers/guides S between retractable part 13 and haemostatic material 10. It can also be seen that the retractable part 13 is in slidable engagement with the stationary part 12 by means of projections 13 a and 13 b from the retractable part 13 that engage in grooves in the stationary part 12. Such projections and grooves may have a variety of different shapes. The attachment member 14 is attached to the distal portion of the stationary part 12, and a comparison of FIG. 8 with FIG. 3 reveals the difference between the attachment member 14 and the attachment member 6 of FIG. 3. Whereas the attachment member 6 is attached to the retractable part 5 of the closure device 1, the attachment member 14 is attached to the stationary part 12 of the closure device 9. This means that, during the retracting movement, the attachment member 14 remains in position on the introducer 15, which may facilitate a smooth operation of a closure device according to the present invention. Here it should be noted that instead of providing a single attachment member, a number of attachment members, e.g. in the form of flexible rings each provided with a slit (for example, rings 6 a, 6 b, and 6 c shown in FIG. 15), could be arranged spaced apart along the length of an insertion assembly.
1. A closure device assembly for sealing an incision channel extending from a tissue surface of a patient, through a wall of a vessel and into the vessel, in conjunction with an introducer whose proximal end is outside the tissue surface, said closure device assembly comprising:
the introducer, the introducer having an open distal end, a cylindrical outer surface, and a cylindrical inner surface defining a lumen configured for passing a medical instrument therethrough and through the open distal end of the introducer; and
a closure device including:
a body comprising a non-fluid haemostatic material; and
at least one attachment mechanism, connected to the body, the attachment mechanism including:
a side opening dimensioned and configured such that the attachment mechanism is connectable to the introducer by approaching the introducer from a side, while longitudinal axes of the introducer and closure device are substantially parallel to each other, and applying force in at least a transverse direction to thereby snap the attachment mechanism on to a side of the introducer such that the body is off-set to a side of the introducer, and
a sliding surface configured such that the closure device is slidable along the cylindrical outer surface of the introducer,
wherein the assembly is configured such that, when the closure device is initially attached to the introducer, both the haemostatic material and the attachment mechanism are located within at least a distal end portion of the body of the closure device.
2. A closure device assembly according to claim 1, wherein the body further comprises:
a first part and a second part to contain the haemostatic material such that the haemostatic material is contained in the closure device while the first part and the second part are not moved relative to one another and such that the haemostatic material is delivered in the incision channel outside the vessel by moving the first part and the second part relative to one another.
3. A closure device assembly according to claim 2, wherein one of the first and second parts comprises projections and the other of the first and second parts comprises grooves,
wherein the closure device is configured such that the first and second parts engage with one another by engaging the projections in the grooves.
4. A closure device assembly according to claim 3, wherein the one of the first and second parts further comprises spacers to create a space between the haemostatic material and the one of the first and second parts.
5. A closure device assembly according to claim 1, wherein the attachment mechanism comprises a tubular attachment member.
6. A closure device assembly according to claim 1, wherein the opening is in a form of a slit or a cut-away portion.
7. A closure device assembly according to claim 1, wherein the attachment mechanism is in a form of flexible rings, each of which is provided with a slit and which are arranged spaced apart.
8. A closure device assembly according to claim 1, wherein a distal end of the body is bent in a direction away from the longitudinal axis of the introducer.
9. A closure device assembly according to claim 1, wherein the haemostatic material comprises a solid.
10. A closure device assembly according to claim 1, wherein the haemostatic material is a solid.
11. A closure device assembly according to claim 1, wherein the haemostatic material is sponge-like.
12. A closure device assembly according to claim 1, further comprising a drip channel that extends from a distal end of the closure device towards a proximal end of the closure device.
13. A closure device assembly according to claim 1, wherein the body comprises a stationary part and a retractable part in slidable engagement with the stationary part,
wherein the retractable part has a form of a hollow sheath having an inner wall and an outer wall, between which the haemostatic material is contained, and the stationary part, which has a shape of a rod, is provided between the inner wall and the outer wall.
14. A closure device assembly according to claim 13, wherein the attachment mechanism comprises a slit or cut-away portion in the inner and outer walls of the retractable part, such that the retractable part can be connected to the introducer so that at least a portion of the introducer is in contact with the inner wall of the retractable part.
15. A closure device assembly according to claim 14, wherein the attachment mechanism is formed as the slit or cut-away portion in the inner and outer walls of the retractable part,
wherein the retractable part has an annular shape with adjacent ends separated by the slit, wherein the hollow sheath extends from one adjacent end to another adjacent end.
16. A closure device assembly according to claim 1, wherein the assembly is configured such that, when the closure device is initially attached to the introducer, both the haemostatic material located within the distal end portion of the body of the closure device and the attachment mechanism are located within a plane perpendicular to a long axis of the closure device.
US10997858 2002-06-12 2004-11-29 Closure device Active US8308758B2 (en)
US10997858 US8308758B2 (en) 2002-06-12 2004-11-29 Closure device
US10166725 Continuation US6939363B2 (en) 2002-06-12 2002-06-12 Closure device
US20050080452A1 true US20050080452A1 (en) 2005-04-14
US8308758B2 true US8308758B2 (en) 2012-11-13
ID=34421225
US10997858 Active US8308758B2 (en) 2002-06-12 2004-11-29 Closure device
US (1) US8308758B2 (en)
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US6939363B2 (en) * 2002-06-12 2005-09-06 Radi Medical Systems Ab Closure device
Dan Akerfeldt, USPTO Notice of Allowance, U.S. Appl. No. 10/994,519, Aug. 31, 2011, 10 pages.
US20050080452A1 (en) 2005-04-14 application