US20120136389A1 - Suture lock - Google Patents
Suture lock Download PDFInfo
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- US20120136389A1 US20120136389A1 US13/365,933 US201213365933A US2012136389A1 US 20120136389 A1 US20120136389 A1 US 20120136389A1 US 201213365933 A US201213365933 A US 201213365933A US 2012136389 A1 US2012136389 A1 US 2012136389A1
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- United States
- Prior art keywords
- suture
- channel
- suture lock
- lock according
- thread
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0487—Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B2017/0496—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials for tensioning sutures
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
- A61B17/06004—Means for attaching suture to needle
- A61B2017/06028—Means for attaching suture to needle by means of a cylindrical longitudinal blind bore machined at the suture-receiving end of the needle, e.g. opposite to needle tip
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/39—Cord and rope holders
- Y10T24/3916—One-piece
- Y10T24/3918—Wedge slot
Abstract
A suture lock according to the present invention provides sufficiently secures a suture thread in place in a quick and efficient manner. It eliminates the need for a laproscopic surgeon to tie complex or multi-step knots. The suture lock generally comprises a suture lock body having a suture channel that allows a suture thread to be drawn into the suture lock body. A plurality of teeth extends into an opening of the suture channel in such a manner that an inserted suture thread will be locked in place. In addition, a guide portion eases insertion of a suture thread free end by simplifying relative rotational adjustment of the lock. An embodiment of the present invention may be fabricated from a material or materials that naturally dissolve within the human body.
Description
- This application is a continuation of co-pending U.S. patent application Ser. No. 12/231,748, entitled Suture Lock, filed on Sep. 5, 2008, which claimed the benefit of U.S. Provisional Patent Application Ser. No. 60/967,531, entitled Suture Lock, filed on Sep. 5, 2007, and which was a continuation-in-part of U.S. patent application Ser. No. 10/841,255, entitled Suture Lock, filed on May 7, 2004, now U.S. Pat. No. 7,862,584, which claimed the benefit of U.S. Provisional Patent Application Ser. No. 60/468,496, filed on May 7, 2003.
- The need for this invention arises from surgical practice and procedures, particularly surgical practice and procedures using laparoscopic instruments. Utilizing laparoscopic instruments involves making small incisions in the area of the surgical site. An endoscope may be inserted into one of the incisions to view the field of the operation inside the patient and laparoscopic surgical instruments are inserted into the same or other incisions and manipulated from outside the patient's body using video screen visualization, usually enlarged, to guide the work.
- Anything that can reduce the number of steps to be performed during surgery can markedly reduce the stress of the procedure, both on the patient and on the doctor. Reducing the number of steps also reduces the time involved for the procedure, which is a priority in invasive procedures. Surgeons performing such operations are under considerable stress because remote manipulation of the surgical instruments using a video screen for visualization, rather than seeing the site of the operation directly, requires the learning of a great many techniques that are radically different from those performed when the surgical site is open to view. The required techniques include indirect hand-eye coordination and the cooperation between surgeons to place and secure sutures at the surgical site.
- The placing of sutures during a laparoscopic surgical procedure may require two surgeons. The surgeons must cooperate in a multi-step process performed with multiple surgical instruments to manipulate the suture needle and the suture thread. The needle and suture thread are passed back and forth from one to the other, while placing the sutures by tying one or more knots.
- Finally, prior sutures have generally been tightened and secured by tying knots in the suture thread. Such knots permanently fix a suture in place and are not able to be removed once in place without removing the entire suture. While some knots have been designed to be tightened further after placement, none allow the surgeon to loosen them if needed to reduce excessive tension on the tissue, which can prevent blood flow to the wound inhibiting healing, causing sclerosis and producing excessive scare tissue.
- Suture locks and cooperating devices have been developed to simplify the laparoscopic surgical process. For instance, suture locks disclosed in U.S. Pat. Nos. 5,413,585, 5,735,877, 5,741,301, 5,895,393, 6,015,428 and 6,475,229, the specifications of which are incorporated herein by reference, have made the surgical process easier.
- Wilk, U.S. Pat. No. 5,391,173, describes a suture device for locking a suture. The device requires that a suture is forced into a small opening or inserted into a larger opening that does not have a retaining mechanism. Colvin et al., U.S. Pat. No. 6,066,160, describes a suture locking device that requires threading of the suture through a small aperture. Schwartz et al., U.S. Pat. No. 6,432,123, describes a suture locking device that uses a locking ring to hold the suture in place. These patents contain advancements over the prior art, but still leave room for improvement, such as the ease of securing a suture thread, the overall time needed to properly complete a suture, or the ability to adjust a suture to increase or decrease suture tension as needed.
- A suture lock according to the present invention sufficiently secures a suture thread in place in a quick and efficient manner. This novel design allows a single surgeon, perhaps working in a laparoscopic environment, to suture a surgical site with one or more suture locks and without the need of tying complex or multi-step knots. The suture lock generally comprises a body having a suture channel that allows a suture thread to be drawn into the body. A plurality of teeth extends into an opening of the suture channel in such a manner that an inserted suture thread will be locked in place. In addition, an embodiment of the present invention allows a suture thread, which was previously drawn into and secured by the suture lock body, to be released by a surgeon if desired, for example to reduce suture tension, and to be reengaged in its secured, cinched state. Furthermore, an embodiment of the present invention may be fabricated from a material or materials that naturally dissolve within the human body.
- According to any embodiment of a suture lock according to the present invention, such suture lock includes a suture lock body, which may be a unitary member, having a front surface generally opposed from a back surface, and a left surface extending at least partially between and coupled to the front surface and the back surface. A right surface of the body is generally opposed from the left surface, the right surface and the left surface defining a width therebetween. The suture lock body also has a bottom surface extending between and coupled to the front surface and the back surface, the bottom surface also extending between and coupled to the right surface and the left surface. A top surface is generally opposed from the bottom surface, the top surface and the bottom surface defining a height therebetween. The suture lock body also includes a first channel formed in the right surface, the first channel extending longitudinally through the top surface and through the bottom surface. The first channel extends laterally between the front surface and the back surface. The first channel extends between a first open end at the right surface and a first terminal end, the first channel defining generally opposed front and back right guide wings. The first open end may be laterally wider than the first terminal end, thereby providing a funneling effect. Disposed at least partially in the first channel is a suture locking mechanism. A suture attachment site is also provided as a part of the lock body, preferably separate from the suture locking mechanism.
- According to any embodiment of a suture lock according to the present invention, the suture locking mechanism may include a plurality of teeth, at least two of which have converging longitudinal edges. The plurality of teeth may include one or more pairs of symmetrical teeth. The converging longitudinal edges may be at least substantially coplanar. At least two of the teeth may be located closer to the first terminal end than to the first open end. At least two pairs of the teeth may be located closer to the first terminal end than to the first open end.
- According to any embodiment of a suture lock according to the present invention, the suture locking mechanism may include a predetermined grit of abrasive bonded to at least a portion of the first channel.
- According to any embodiment of a suture lock according to the present invention, the suture attachment site may include a through bore. The through bore may extend through the left surface and through the back right guide wing. The through bore may be formed along a longitudinal bore axis, the longitudinal bore axis disposed at a through bore angle relative to the bottom surface. The longitudinal bore axis may be oriented substantially perpendicular skew to the converging longitudinal edges of at least two teeth, if utilized for the locking mechanism. The through bore angle may be an angle of between about zero degrees and about forty-five degrees. For example, the through bore angle may be an angle of about twenty-five degrees. Affixed to the suture lock body, such as by an adhesive, may be a suture thread extending at least partially through the through bore.
- According to any embodiment of a suture lock according to the present invention, the front right guide wing and the back right guide wing may be asymmetric. Such asymmetry may be provided, for example, by the front right guide wing having a sloped top surface.
- According to any embodiment of a suture lock according to the present invention, the suture lock may further include a second channel formed in the top surface, the second channel extending longitudinally through the left surface and through the terminal end of the first channel. The second channel may extend laterally between the front surface and the back surface. The second channel may extend between a second open end at the top surface and a second terminal end, and the second channel may form generally opposed front and back top guide wings. The first open end may be laterally wider than the first terminal end and the second open end may be laterally wider than the second terminal end. The height measured through the front top guide wing may be less than the height measured through the back top guide wing.
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FIG. 1 is a top-right perspective view of a first embodiment of a suture lock according to the present invention. -
FIG. 2 is a front-right perspective view of the embodiment ofFIG. 1 . -
FIG. 3 is a top-left perspective view of the embodiment ofFIG. 1 . -
FIG. 4 is a top plan view of the embodiment ofFIG. 1 . -
FIG. 5 is a bottom plan view of the embodiment ofFIG. 1 . -
FIG. 6 is a right elevation view of the embodiment ofFIG. 1 . -
FIG. 7 is a left elevation view of the embodiment ofFIG. 1 . -
FIG. 8 is a cross-sectional view taken along line 8-8 ofFIG. 5 . -
FIG. 9 is a cross-sectional view taken along line 9-9 ofFIG. 4 . -
FIG. 10 is a third perspective view of the embodiment ofFIG. 1 , further including a suture thread inserted through a suture thread aperture. -
FIG. 11 is a front elevation view of the embodiment ofFIG. 10 with the suture thread advanced through two opposing portions of tissue. -
FIG. 12 is a first rear elevation view of the embodiment ofFIG. 11 rotated about the free end of the suture thread. -
FIG. 13 is a second rear elevation view of the embodiment ofFIG. 11 rotated about the free end of the suture thread, the suture thread free end advanced through the tissue such that it starts to engage the suture lock. -
FIG. 14 is a third rear elevation view of the embodiment ofFIG. 11 rotated about the free end of the suture thread, the suture thread free end further further advanced and further engaging the suture lock. -
FIG. 15 is a fourth rear elevation view of the embodiment ofFIG. 11 rotated about the free end of the suture thread, the suture thread free end fully engaging the suture lock having the free end trimmed. -
FIG. 16A is a first right bottom perspective view of the embodiment ofFIG. 12 showing the suture thread free end moving in a first direction. -
FIG. 16B is a second right bottom perspective view of the embodiment ofFIG. 16A showing the suture thread free end engaging the suture guide thread. -
FIG. 16C is a third right bottom perspective view of the embodiment ofFIG. 16A showing the suture thread free end engaged with the suture lock. -
FIG. 17A is a first right bottom perspective view of the embodiment ofFIG. 12 showing a suture thread engaging a guide thread and a suture lock from a second direction. -
FIG. 17B is a right front perspective view of the embodiment ofFIG. 17A showing the suture thread engaging the front right guide wing and the guide thread. -
FIG. 17C is a second right bottom perspective view of the embodiment ofFIG. 17A showing the suture thread engaged with the suture lock. -
FIG. 18 is a right bottom perspective view of the embodiment ofFIG. 12 showing a suture thread engaging a guide thread and a suture lock from a third direction. - Although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention, the physical embodiments herein disclosed merely exemplify the invention that may be embodied in other specific structures. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims. While terms such as top, bottom, front, rear, left and right are used in describing the invention, such terms are not intended to be limiting, but are used merely to aid in an understanding of the invention.
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FIG. 1 depicts a first perspective view of anembodiment 100 of a suture lock according to the present invention. Referring also toFIGS. 2-9 , thesuture lock 100 is preferably a unitary moldedsuture lock body 102 having alocking mechanism 120 and a guidingportion 160. Thesuture lock body 102 preferably has afront surface 105 generally opposed from aback surface 107. Thebody 102 further includes aleft surface 110 extending at least partially between and coupled to thefront surface 105 and theback surface 107. Aright surface 104 generally opposes theleft surface 110. Theright surface 104 and theleft surface 110 generally define awidth 112 therebetween. Abottom surface 108 of thebody 102 extends between and is coupled to thefront surface 105 and theback surface 107. Thebottom surface 108 also extends between and is coupled to theright surface 104 and theleft surface 110. Thebody 102 further includes atop surface 106 generally opposed from thebottom surface 108, where thetop surface 106 and thebottom surface 108 define aheight 114 therebetween. Thelocking mechanism 120 preferably includes a plurality ofteeth 122 disposed at least partially in afirst channel 124 formed in theright surface 104 of thesuture lock body 102. Alternately, thelocking mechanism 120 may be any number of variations of high friction surfaces or geometries. For example surfaces composed of multiple barbs or hooks disposed at least partially in thefirst channel 124, surfaces of varying grits of bonded abrasive provided in thefirst channel 124, rasp-like surfaces composed of patterned ridges disposed at least partially in thefirst channel 124, or any variety of high friction surfaces well know by those skilled in the art can be used as thelocking mechanism 120. Thefirst channel 124 preferably extends longitudinally through thetop surface 106 and through thebottom surface 108 and laterally between thefront surface 105 and theback surface 107. A pair or plurality of pairs of opposingteeth 122 may be disposed along opposite sides of thefirst channel 124, having converginglongitudinal edges 123 tapering generally towards each other from a firstopen end 126 of thefirst channel 124 towards a firstterminal end 128 of thefirst channel 124. Theteeth 122 included in a pair of opposing teeth are preferably symmetrical. The converginglongitudinal edges 123 of opposing pairedteeth 122 are preferably at least substantially coplanar and the converginglongitudinal edges 123 ofadjacent teeth 122, if more than onetooth 122 is provided along a side of thefirst channel 124, are preferably at least substantially coplanar and at least substantially parallel. The firstopen end 126 is preferably wider than a desired suture thread, thereby easing the process of feeding the thread into thesuture lock 100. On the contrary, the generally V-shaped taper towards the firstterminal end 128 is preferably smaller than the desired suture thread, thereby providing a wedging effect to secure the thread to thelock 100. Therefore, the firstopen end 126 is preferably laterally wider than the firstterminal end 128. Thefirst channel 124 preferably defines a backright guide wing 162 generally opposed from a frontright guide wing 164, as further discussed below. - The
body 102 also preferably includes asecond channel 130 formed in thetop surface 106. Thesecond channel 130 preferably extends longitudinally through theleft surface 110 and through theterminal end 128 of thefirst channel 124, and laterally between thefront surface 105 and theback surface 107. Thesecond channel 130 is provided with anopen end 132 at thetop surface 106 and aterminal end 134 generally opposed from theopen end 132. Thesecond channel 130 preferably defines a backtop guide wing 168 generally opposed from a fronttop guide wing 172, as further discussed below. - Still referring to
FIGS. 1-9 , a guidingportion 160 is provided to assist in directing a suture thread towards thelocking mechanism 120, or conversely, orienting thelock 100 so that proper engagement of a thread is possible. The guidingportion 160 includes the backright guide wing 162 and frontright guide wing 164 both defined by thefirst channel 124, and the backtop guide wing 168 and backfront guide wing 172, which are defined by thesecond channel 130. The backright guide wing 162 extends preferably angularly away from thelocking mechanism 120 along a firstsloped side 166 of thefirst channel 124. Asuture attachment site 169 preferably extends through thelock 100 from theleft surface 110 at least partially through the backright guide wing 162. Thesuture attachment site 169 may be a through bore or lumen 171, as shown, formed during the molding of alock 100. Alternatively, thesuture attachment site 169 may include the over molding of a suture thread by the material from which thesuture lock 100 is made. The through bore 171 is preferably formed along alongitudinal bore axis 173 disposed at a through bore angle α relative to thebottom surface 108 of thelock 100, as shown inFIG. 2 . While the through bore angle α may vary, such as between zero and 90 degrees, depending upon the particular use of the device, a preferred through bore angle α is about 25 degrees. Alternatively, or additionally, thelongitudinal bore axis 173 is provided skewed to the converginglongitudinal edges 123 of at least two of theteeth 122, at apreferred angle 175, such as substantially orthogonally skew as shown. Furthermore, although preferably separated from theteeth 122, thesuture attachment site 169 is not restricted to the position shown. In other words, thesite 169 may be altered depending upon physician preference or treatment requirements, such as placing thesuture attachment site 169 through the frontright guide wing 164, the backtop guide wing 168, the fronttop guide wing 172, or even in a medial location through the device. - The front
right guide wing 164 also extends preferably angularly away from thelocking mechanism 120, and is preferably asymmetric to the backright guide wing 162. Thetop surface 106 along at least a portion of the frontright guide wing 164 is preferably provided as aninsertion chamfer 174 such that aheight 114 c measured through the frontright guide wing 164 is less than aheight 114 a measured through the fronttop guide wing 172. Such a design allows free passage of a suture thread past the frontright guide wing 164 to make physical contact with the backright guide wing 162. The combination of theright guide wings top guide wings locking mechanism 120, preferably from three directions. While thefront surface 105, theback surface 107, thebottom surface 108 and theleft surface 110 of thelock 100 are shown as being substantially planar with some rounded corners, the outer shape could also be curved, cylindrical or spherical. Additionally, while thefront surface 105, thebottom surface 108 and leftsurface 110 are shown as being pairwise at least substantially orthogonal, and theback surface 107, thebottom surface 108 and leftsurface 110 are shown as being pairwise at least substantially orthogonal, other configurations are contemplated. -
FIG. 3 provides a perspective view of theleft surface 110 of thelock 100 fromFIG. 1 , in which the suturethread attachment site 169 may be seen clearly as extending through thesuture lock body 102.FIGS. 4-7 provide elevation and plan views of the embodiment ofFIG. 1 . As shown inFIG. 5 , thewidth 112 of thebody 102 may vary. For instance, awidth 112 a measured through the frontright guide wing 164 may be less than awidth 112 b measured through the backright guide wing 162. Additionally, as shown inFIG. 7 , theheight 114 of thebody 102 may vary. For instance, aheight 114 a measured through the fronttop guide wing 172 may be less than aheight 114 b measured through the backtop guide wing 168.FIG. 8 andFIG. 9 provide opposing cross-sectional views from proximate the middle of thefirst channel 124. -
FIGS. 10-15 , inclusive, generally demonstrate a use of adevice 100 according to the present invention. InFIG. 10 , asuture thread 200 has been fastened to asuture lock 100 according to the present invention. If thelock 100 was provided with a suture attachment lumen, such as that illustrated inFIGS. 1-9 , thesuture thread 200 may be fastened in the lumen by any desirable method. For example, the thread may be held in place by an adhesive or knots may be formed in thethread 200 on either side of thelock 100. Instead of being provided with a suture attachment lumen, thethread 200 may have been overmolded during the formation of thelock 100. In other words, thelock 100 may have been formed around thethread 200, thereby binding thethread 200 in the material of thelock 100. Regardless of the method of attachment of thethread 200 to thesuture lock 100, it may be preferable to leave a workingend 202 extending from thelock 100. Towards or at the end of thesuture thread 200 opposite thesuture lock 100, asuture needle 204 is provided. Thesuture needle 204 may be crimped or adhered to the end of thesuture thread 200, or thesuture thread 200 may be threaded through an eye provided in the needle (not shown). -
FIG. 11 depicts the embodiment ofFIG. 10 having been partially inserted into two portions of tissue to close asuture 300. Theneedle 204 was inserted down through a desired amount of afirst tissue portion 302 on one side of thesuture 300 and up through a desired amount of asecond tissue portion 304 on the opposite side of thesuture 300. Thethread 200 may have been advanced in this manner by the use of either a physician's hand directly or a needle driver (not shown) by way of a physician's hand guiding theneedle 204. This guiding can be through bothportions first portion 302 followed by a second motion through thesecond portion 304. The portion of the thread between thesuture lock 100 and thefirst tissue portion 302 forms aguide thread 206. - Next, the
lock 100 is brought forward and turned in front of the free end of thesuture thread 200 as seen inFIG. 12 . This maneuver may be accomplished by a physician's hand, directly, or a needle driver or grasper grasping the workingend 202 of thethread 200. Turning toFIG. 13 , as thesuture needle 204 andthread 200 are pulled in afirst direction 306, thelock 100 will have a tendency towards asecond direction 308. The free end of thesuture thread 200 is preferably maintained in close proximity, or even touching or crossing, theguide thread 206, thereby guiding thesuture thread 200 into thesuture lock 100, thus securing thethread 200 to thelock 100 by the lockingportion 120. Therefore, thesuture thread 200 is preferably manipulated to the correct position by a combination of the guidingportion 160 of thelock 100, including theright guide wings top guide wings guide thread 206 acting as a guide rail. In this manner, theright guide wings open end 126 of thefirst channel 124 and the plane of the free end of thesuture thread 200. In effect, the tapered nature of the guide wings will rotate the firstopen end 126 to line up with the free end of thesuture thread 200. - The
thread 200 is also tensioned to achieve desired approximation of thetissue portions FIG. 14 . This may be done by pulling thethread 200 in thefirst direction 306, and thereafter or simultaneously, if desired, in athird direction 310. If desired, the free end of thesuture thread 200 can be pulled generally opposite thethird direction 310 while the workingend 202 or suture lock itself 100 is pulled generally in thethird direction 310. This will release the tension on thesuture 300 and the process can be repeated until the desiredsuture 300 tension is achieved. Finally, as shown inFIG. 15 , thesuture thread 200 may be trimmed, thereby leaving anadjustment thread 208, in the event that future adjustment of thesuture 300 is required or desired. -
FIGS. 16A-16C depict a first method of engaging a suture thread with a locking portion of a suture lock using a device according to the present invention where a device has been provided, such as that shown inFIG. 10 , including asuture thread 200 having asuture needle 204 coupled thereto, thesuture thread 200 having been coupled to asuture lock 100. As described in connection withFIGS. 11-12 , theneedle 204 has been inserted through tissue portions and it is now desirable to engage thesuture thread 200 with thelock 100. The portion of thethread 200 between thesuture lock 100 and thefirst tissue portion 302 forms aguide thread 206. Thethread 200 is maneuvered in adirection 312, generally laterally towards thefront surface 105 and thebottom surface 108, and is brought into contact with theguide thread 206, as shown inFIG. 16B , and then, or contemporaneously, pulled taught in anotherdirection 314. Thethread 200 may, as shown inFIG. 16C , then be slid along theguide thread 206, into thefirst channel 124 to engageteeth 122 disposed in thechannel 124. -
FIGS. 17A-17C depict a second method of engaging a suture thread with a locking portion of a suture lock using a device according to the present invention where a device has been provided, such as that shown inFIG. 10 , including asuture thread 200 having asuture needle 204 coupled thereto, thesuture thread 200 having been coupled to asuture lock 100. As described in connection withFIGS. 11-12 , theneedle 204 has been inserted through tissue portions and it is now desirable to engage thesuture thread 200 with thelock 100. The portion of thethread 200 between thesuture lock 100 and thefirst tissue portion 302 forms aguide thread 206. Thethread 200 is maneuvered in adirection 314, generally laterally towards thebottom surface 108, and is brought into contact with theguide thread 206, and theinsertion chamfer 174 of the frontright guide wing 164. The contact of thethread 200 with theguide thread 206 and theinsertion chamfer 174 causes thelock 100 to rotate 316, as shown inFIG. 17B . As thesuture thread 200 is tightened, as shown inFIG. 17C , thethread 200 is situated in thefirst channel 124, thereby engaging theteeth 122 disposed therein. -
FIG. 18 depicts a third method of engaging a suture thread with a locking portion of a suture lock using a device according to the present invention where a device has been provided, such as that shown inFIG. 10 , including asuture thread 200 having asuture needle 204 coupled thereto, thesuture thread 200 having been coupled to asuture lock 100. As described in connection withFIGS. 11-12 , theneedle 204 has been inserted through tissue portions and it is now desirable to engage thesuture thread 200 with thelock 100. The portion of thethread 200 between thesuture lock 100 and thefirst tissue portion 302 forms aguide thread 206. Thethread 200 is maneuvered in adirection 318, generally laterally towards theright surface 104, slightly below thebottom surface 108, and is brought into contact with theguide thread 206 and the backright guide wing 162. The contact of thethread 200 with the rounded right surface of the backright guide wing 162 causes thelock 100 to rotate 320. As thesuture thread 200 is tightened, thethread 200 is situated in thefirst channel 124, thereby engaging theteeth 122 disposed therein. - The foregoing is considered as illustrative only of the principles of the invention. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described. While the preferred embodiment has been described, the details may be changed without departing from the invention, which is defined by the claims.
Claims (19)
1. A suture lock comprising:
a suture lock body having
a front surface generally opposed from a back surface,
a left surface extending at least partially between and coupled to said front surface and said back surface,
a right surface generally opposed from said left surface, said right surface and said left surface defining a width therebetween,
a bottom surface extending between and coupled to said front surface and said back surface, and extending between and coupled to said right surface and said left surface, and
a top surface generally opposed from said bottom surface, said top surface and said bottom surface defining a height therebetween;
a first channel formed in said right surface, said first channel extending longitudinally through said top surface and through said bottom surface, said first channel extending laterally between said front surface and said back surface, said first channel extending between a first open end at said right surface and a first terminal end, and said first channel defining generally opposed front and back right guide wings;
a suture locking mechanism disposed in said first channel, said suture locking mechanism comprising a plurality of longitudinal teeth wherein each tooth has a longitudinal edge extending from said first open end of said first channel toward said first terminal end of said first channel, wherein the longitudinal edges of at least two of said plurality of teeth converge, and all of said longitudinal edges taper generally towards each other from the first open end of the first channel towards the first terminal end of the first channel; and
a suture attachment site separated from said suture locking mechanism.
2. A suture lock according to claim 1 , said plurality of longitudinal teeth comprising at least one pair of symmetrical teeth, wherein a first tooth of said pair is disposed on an opposing side of said first channel from a second tooth of said pair.
3. A suture lock according to claim 2 , said at least one pair of symmetrical teeth having substantially coplanar longitudinal edges.
4. A suture lock according to claim 2 , said plurality of longitudinal teeth comprising a plurality of pairs of symmetrical teeth.
5. A suture lock according to claim 1 , said converging longitudinal edges being at least substantially coplanar.
6. A suture lock according to claim 1 , wherein said suture attachment site comprises a through bore.
7. A suture lock according to claim 1 , said front right guide wing and said back right guide wing being asymmetric.
8. A suture lock according to claim 7 , said front right guide wing comprising a sloped top surface.
9. A suture lock according to claim 1 , said first open end being laterally wider than said first terminal end.
10. A suture lock according to claim 1 , said suture lock comprising a material that naturally dissolves within a human body.
11. A suture lock according to claim 1 , said suture lock body comprising a unitary body.
12. The suture lock according to claim 1 , at least two of said teeth located closer to said first terminal end than said first open end.
13. The suture lock according to claim 12 , at least two pairs of said teeth located closer to said first terminal end than to said first open end.
14. A suture lock according to claim 1 , said suture lock further comprising:
a second channel formed in said top surface, said second channel extending longitudinally through said left surface and through said terminal end of said first channel, said second channel extending laterally between said front surface and said back surface, said second channel extending between a second open end at said top surface and a second terminal end, and said second channel forming generally opposed front and back top guide wings.
15. A suture lock according to claim 14 , said first open end being laterally wider than said first terminal end, and
said second open end being laterally wider than said second terminal end.
16. A suture lock according to claim 14 , said height measured through said front top guide wing being less than said height measured through said back top guide wing.
17. A suture lock according to claim 1 , said locking mechanism comprising a predetermined grit of abrasive bonded to at least a portion of said first channel.
18. A suture lock comprising:
a suture lock body having a first channel formed therein, said first channel having a first open end and a first terminal end; and
a suture locking mechanism disposed in said first channel;
wherein said first channel is disposed between asymmetric guide wings.
19. A suture lock according to claim 18 , said suture locking mechanism comprising a plurality of longitudinal teeth wherein each tooth has a longitudinal edge extending from said first open end of said first channel toward said first terminal end of said first channel, wherein the longitudinal edges of at least two of said plurality of teeth converge, and all of said longitudinal edges taper generally towards each other from the first open end of the first channel towards the first terminal end of the first channel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US13/365,933 US20120136389A1 (en) | 2003-05-07 | 2012-02-03 | Suture lock |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US46849603P | 2003-05-07 | 2003-05-07 | |
US10/841,255 US7862584B2 (en) | 2003-05-07 | 2004-05-07 | Suture lock |
US96753107P | 2007-09-05 | 2007-09-05 | |
US12/231,748 US8109968B2 (en) | 2003-05-07 | 2008-09-05 | Suture lock |
US13/365,933 US20120136389A1 (en) | 2003-05-07 | 2012-02-03 | Suture lock |
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US12/231,748 Continuation US8109968B2 (en) | 2003-05-07 | 2008-09-05 | Suture lock |
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US20120136389A1 true US20120136389A1 (en) | 2012-05-31 |
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US13/365,933 Abandoned US20120136389A1 (en) | 2003-05-07 | 2012-02-03 | Suture lock |
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US12/231,748 Expired - Fee Related US8109968B2 (en) | 2003-05-07 | 2008-09-05 | Suture lock |
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US9517071B2 (en) * | 2011-10-31 | 2016-12-13 | Olympus Corporation | Tissue ligating device |
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Cited By (5)
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US20120165865A1 (en) * | 2010-11-30 | 2012-06-28 | Olympus Corporation | Tissue ligating device |
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CN104688285A (en) * | 2015-03-27 | 2015-06-10 | 王谦 | Self-locking structure for shoulder joint suturing |
Also Published As
Publication number | Publication date |
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US20090076546A1 (en) | 2009-03-19 |
US8109968B2 (en) | 2012-02-07 |
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Legal Events
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