|Publication number||US20060265010 A1|
|Application number||US 11/460,863|
|Publication date||23 Nov 2006|
|Filing date||28 Jul 2006|
|Priority date||15 Sep 2003|
|Also published as||CA2538329A1, EP1667586A1, US8100923, US20050143762, US20120184991, WO2005027754A1|
|Publication number||11460863, 460863, US 2006/0265010 A1, US 2006/265010 A1, US 20060265010 A1, US 20060265010A1, US 2006265010 A1, US 2006265010A1, US-A1-20060265010, US-A1-2006265010, US2006/0265010A1, US2006/265010A1, US20060265010 A1, US20060265010A1, US2006265010 A1, US2006265010A1|
|Inventors||Joseph Paraschac, Scott McIntosh|
|Original Assignee||Abbott Laboratories|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (30), Referenced by (29), Classifications (17)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This is a continuation application of U.S. patent application Ser. No. 10/941,693 filed Sep. 15, 2004, and entitled “Suture Locking Device and Methods”, which claims priority to U.S. Provisional Patent Application Ser. No. 60/502,925, filed Sep. 15, 2003, and entitled “Device and Method for Securing and Trimming Suture”, the entirety of each application is herein incorporated by reference.
1. The Field of the Invention
The present invention relates to devices and methods for securing a pair of suture lengths together or for using a single strand of suture to secure tissue(s) together at an operative site in a patient without necessarily tying a knot.
2. The Relevant Technology
Sutures are used to sew tissue together, and thereby close tissue openings, cuts or incisions during or after any of a very wide variety of medical procedures. Additionally sutures may be utilized to correct patent foramen ovales (PFO) which are openings between the two atria of the heart. Typically, the surgeon manually ties together a suture pair to close the opening. A variety of automatic suture tying systems and suture securing mechanisms have been developed.
Manually tying sutures together to secure tissue can be very difficult and challenging. For example, manual knot tying requires considerable dexterity in the context of a medical procedure where the surgeon's hands are gloved or when the suturing is being performed in a part of a patient's anatomy that is particularly difficult to access. Also, in minimally invasive surgical procedures or in the case of closure of a puncture in a femoral artery after a catheterization procedure, the space adjacent the wound or tissue opening to be sutured is limited by other parts of the patient's anatomy and in many instances the opening to be closed cannot be visualized, therefore the knot must be formed blindly.
Also, manual knot tying can be time consuming as well as difficult in instances where the tying process cannot be visualized. Knot tying is further complicated by the fact that surgical sutures generally have low friction surfaces. Therefore, it is typically necessary for a surgeon to include many loops or “throws” when tying a knot. Multiple throws are often required even if an automatic knot tying device is used such as that disclosed in U.S. Pat. No. 6,171,317 the entirety of which is hereby incorporated by reference. Unfortunately, as the number of loops or “throws” incorporated into the knot increases, the knot becomes increasingly large and bulky. Manually tied knots also can become “locked” prior to reaching the intended amount of tension to be applied to the tissue. If the knot becomes “locked” prior to final deployment, the surgeon may be required to remove the suture and place a new suture if possible or resort to other closure methods such as compression if the suture was being utilized to close an opening in a vessel.
Moreover, the surgeon typically needs to handle suture strands having adequate length prior to commencing manual knot tying. Thus, manual knot tying requires considerable space both in which to view, and to perform, the actual knot tying. Therefore, knot tying is particularly difficult in areas of limited available space or access, for example, at the back of the patient's heart during a coronary artery bypass graft (CABG) operation or in a tissue tract resulting from a percutaneous transluminal catheterization procedure.
In addition to those problems described above, many of the sutures utilized for surgical procedures can only be manipulated to a certain degree before failure. For example, when tightening a knot, the suture is placed in tension by the surgeon; too much tension applied to the suture may cause the suture to break. Alternatively, too much tension applied to the suture may cause the suture to be torn from the tissue further complicating closure by creating a larger wound or opening in the tissue which then must be addressed.
Many knot replacement technologies for use with sutures have been proposed over the years, one example of a knot replacement technology is a deformable clip. Wherein the suture ends are disposed through a deformable member which is then deformed thereby trapping the suture therein. A shortcoming of this design is that the deformable member must be made to be sufficiently deformable but yet have enough strength to retain the suture therein. Further still, there is the possibility of the suture slipping from the deformed clip if the clip was not deformed sufficiently. Lastly, many of these deformable clips are constructed of non-absorbable materials and therefore remain implanted within the patient after use, which may lead to other complications such as infection or irritation of the surrounding tissue.
Another example of knot replacement technology is the use of a tortuous path, wherein the suture is disposed upon or within a device that contains a tortuous path, wherein friction between the suture and the device is utilized to retain the suture. A potential shortcoming of such devices is that since the suture is not physically retained within the device there is the potential for the suture to slip or loosen from the device. Additionally, many of these devices require a great amount of operator skill or time to dispose the suture therethrough, thereby adding to the complexity of a potentially already complex surgical procedure.
Therefore, for the above reasons, it would be desirable to provide improved devices, systems, and methods for securing at least one length of suture that has been used to suture tissue together to close an opening formed in the tissue such as a vascular puncture. It would be particularly beneficial if these improved devices provided some or all of the benefits while overcoming one or more of the disadvantages discussed above.
It is an object of the present invention to provide methods and devices that may be utilized in place of forming a knot in a suture to effect a closure of the suture.
It is a further object of the present invention to provide a knot replacement device that reduces surgical time by eliminating the need to form a knot during a surgical procedure.
It is yet another object of the present invention to provide a knot replacement device with is biocompatible and absorbable, thereby reducing the amount of foreign material remaining implanted within a patient after a surgical procedure.
These and other objects of the present invention will be apparent from the following detailed description and the claims.
The present invention provides methods and apparatuses that may be utilized to secure at least one end of a suture and retain the suture. The device according to the present invention includes an outer body and an inner wedge member, wherein the outer body includes an opening formed therein, the opening configured to receive at least one suture therethrough. The opening further being sized and configured to receive the inner wedge member therein, whereby the suture and the inner wedge member are frictionally retained within the opening.
In accordance with the present invention there is provided a suture lock device, the suture lock device including an outer body member having a lumen extending therethrough, the lumen defining a suture path through the outer body, an inner wedge member axially insertable into the outer body member to secure a portion of a suture between the wedge and the interior surface of the lock member, an outer tube having a proximal end and a distal end, the outer tube carrying the outer body member at the distal end of the outer tube, the outer tube carrying the wedge proximal to the outer body member, and a pusher member slidable within the outer tube to push the wedge into the lock member.
In accordance with the present invention there is provided a method of securing and trimming a suture, the method comprising: providing a suturing locking device comprising an outer body member having an aperture disposed therethrough, the aperture defining a suture path through the outer body member; a wedge axially insertable into the outer body member to secure a portion of a suture between the wedge and the interior surface of the outer body member; an outer tube having a proximal end and a distal end, the outer tube carrying the outer body member at the distal end of the outer tube, the outer tube carrying the wedge proximal to the outer body member the outer tube defining a suture tail opening; and a pusher member slidable within the outer tube to push the wedge into the outer body member; advancing a suture through the outer body member and through the suture tail opening; pushing the wedge member into the outer body member to secure the suture; and cutting the suture by shearing the suture between the outer body member and an edge of the suture tail opening.
Referring now to the appended drawings, wherein like numerals are utilized to denote similar objects.
Before the present invention is described in such detail, it is to be understood that this invention is not limited to particular variations set forth herein as various changes or modifications may be made to the invention described and equivalents may be substituted without departing from the true spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation, material, composition of matter, process, process act(s) or step(s) to the objective(s), spirit or scope of the present invention. All such modifications are intended to be within the scope of the claims made herein.
Methods recited herein may be carried out in any order of the recited events which is logically possible, as well as the recited order of events. Furthermore, where a range of values is provided, it is understood that every intervening value, between the upper and lower limit of that range and any other stated or intervening value in that stated range is encompassed within the invention. Also, it is contemplated that any optional feature of the inventive variations described may be set forth and claimed independently, or in combination with any one or more of the features described herein.
All existing subject matter mentioned herein (e.g., publications, patents, patent applications and hardware) is incorporated by reference herein in its entirety except insofar as the subject matter may conflict with that of the present invention (in which case what is present herein shall prevail). The referenced items are provided solely for their disclosure prior to the filing date of the present application. Nothing herein is to be construed as an admission that the present invention is not entitled to antedate such material by virtue of prior invention.
Reference to a singular item, includes the possibility that there are plural of the same items present. More specifically, as used herein and in the appended claims, the singular forms “a,” “and,” “said” and “the” include plural referents unless the context clearly dictates otherwise. It is further noted that the claims may be drafted to exclude any optional element. As such, this statement is intended to serve as antecedent basis for use of such exclusive terminology as “solely,” “only” and the like in connection with the recitation of claim elements, or use of a “negative” limitation. Last, it is to be appreciated that unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
In accordance with the present invention there are provided methods and apparatuses for fixedly retaining at least one suture without having to tie a knot in the suture. The devices in accordance with the present invention include a suture lock device and a delivery device, wherein the delivery device is configured to retain and deliver the suture lock device over at least one suture. The delivery device may further include a suture cutting mechanism, whereby after delivery of the suture lock device the suture is severed. The suture lock device may be constructed of a biocompatible material such as plastics, composites, metals or preferable of a bio-absorbable material.
Referring now to
As shown in
The outer body 20 further includes an aperture 30 disposed therethrough. The aperture 30 being sized and configured to receive an inner wedge member 40, wherein the inner wedge member includes at least one projection 44, and preferably two projections 44 a and 44 b disposed between the distal end 41 and the proximal end 42 of the inner wedge member 40.
The outer body 20 and the inner wedge member 40 will preferably be constructed of the same or similar materials. Examples of suitable materials for construction of the outer body 20 and the inner wedge 40 include plastics, composites, metals and ceramics. In a preferred embodiment the outer body and the wedge are constructed of a biocompatible material and more preferably of a biocompatible material that is also bio-absorbable. In a preferred embodiment, the outer body 20 is generally cylindrical in shape, though it is contemplated that the outer body 20 may be formed having other geometric shapes or configurations.
Referring now to
Referring now to
Referring now to
Referring now to
As shown in
Referring now to
Referring now to the trigger member, the trigger member 120 has a distal end 121 and a proximal end 122, wherein the proximal end includes a plurality of projections 123, whereby the plurality of projections form a gear member 124. The trigger member 120 further includes a biasing member 127, the biasing member is configured to be in communication with a portion of the trigger member 120 and the handle member 110.
Referring now to the pusher member, the pusher member 155 includes a distal end 157 and a proximal end 158, wherein the proximal end includes a plurality of projections formed therein, wherein the projections form a gear member 159. The gear member 159 of the pusher member 155 is configured to engage the gear member 124 of the trigger member. Wherein, movement of the trigger member 120 will be translated to the pusher member 155 through the interaction of the gear members. The distal end 157 of the pusher member 155 is configured to engage and detachably retain the inner wedge member 40. Further still, the pusher member 155 includes at least one cutting member 156 disposed adjacent the distal end 157 thereof, wherein the cutting member 156 will be further described below in connection with methods according to the present invention.
Referring now to the elongated tubular member 140, wherein the elongated tubular member 140 has a proximal end 142 and a distal end 143 with a bore 141 extending therebetween. The bore 141 is configured to slidably receive the pusher member 155 as described above. As shown in
Referring now to
In addition to that described above, the tubular body 140 additionally includes at least one and more preferably two wedge retention tabs 149. The wedge retention tabs 149 are formed in the wall of the tubular body adjacent to the distal end 143 thereof. The wedge retention tabs are configured to detachably retain the inner wedge member in a position adjacent to the proximal end 22 of the outer body 20 and adjacent to the suture tail opening 147. The function of the wedge retaining tabs 149 will be described in more detail below with regard to the methods of use of the present invention.
Referring now to
As shown in
Referring now to
In yet another alternative embodiment as shown in
Methods of Use
The device according to the present invention will now be described in use, the description of the methods below should be considered exemplary in nature and should not be considered limiting in any manner.
Referring now to
After the suture ends have been disposed through the suture lock 10 and the elongated tubular member, the operator utilizes the handle of the delivery device 100 to place the distal end of the suture lock adjacent to the opening formed in the vessel as shown in
Upon actuation of the trigger 120, the pusher member engages the inner wedge member 40 and advances the inner wedge member 40 into the aperture 30 of the outer body 20, wherein the inner wedge member is released from the wedge retention tabs 149 by the pusher member 155. The pusher member 155 drives the inner wedge member 40 into the aperture 30. The projections 44 a and 44 b engage the suture wherein the suture frictionally engages the inner wall member of the aperture 30 adjacent to the inner wedge member 40. Once the inner wedge 40 has been disposed within the aperture 30, the pusher member 155 continues to advance thereby applying a force to the inner wedge member, such that the force applied to the inner wedge member is greater than the retention force applied by the tabs 146 to the outer body member 20, thereby expelling the suture lock from the distal end of the delivery device Additionally, the suture ends which have been disposed through the suture tail openings 143 are severed by the distal movement of the pusher member 155.
Once the suture lock 10 has been expelled from the delivery device 10, the delivery device can then be removed from the tissue tract of the patient. The suture and the suture lock 10 remain within the vessel and adjacent to the vessel to close the opening formed in the vessel wall.
It is contemplated that the delivery device 10 may include a lumen extending from the handle to the distal end of the device, wherein the lumen may be configured to deliver a beneficial agent adjacent to the opening in the vessel wall, or at any location within the tissue tract. It is further contemplated that the suture lock in accordance with the present invention may be deployed through a sheath or other medical device which may be deployed within the tissue tract.
Although the present invention has been described for use with a suture having two suture ends it is contemplated according to the alternative embodiments of the present invention that the suture lock may be integrally formed with one end of the suture or be used with a suture having a pre-formed loop, wherein the free suture end would be passed through the suture loop, through the vessel wall, across the opening and back through the tissue wall, whereby the free end of the suture would then be passed through the aperture of the suture lock. It is further contemplated that the suture lock may be integrally formed with a suture delivery device such as that shown and described in U.S. Pat. No. 6,136,010, wherein the device of the '010 patent would deliver a suture across an opening and deploy the suture lock to close the opening in the tissue.
Although the present invention has been shown and described as being utilized to close an opening formed in a vessel wall, it is contemplated that the suture lock may be utilized to close other openings in tissue, such as PFOs.
It is further contemplated that the suture and the suture lock in accordance with the present invention may be constructed of a bio-absorbable material, thus, at a time after the surgical procedure no foreign material would remain within the patient's body.
Although the present invention has been described in connection with the preferred form of the device and methods of practicing it and modifications thereto, those of ordinary skill in the art will understand that many other modifications can be made thereto within the scope of the claims that follow. Accordingly, it is not intended that the scope of the invention in any way be limited by the above description, but instead be determined entirely by reference to the claims that follow.
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|International Classification||A61B17/12, A61B17/04, A61B17/00|
|Cooperative Classification||A61B2017/0496, A61B2017/0488, A61B2017/045, A61B2017/0445, A61B2017/00243, A61B17/12013, A61B17/12009, A61B17/0487, A61B17/0467, A61B2017/0448|
|European Classification||A61B17/04C, A61B17/12L, A61B17/04K|