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Transobturator surgical articles and methods

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Title: Transobturator surgical articles and methods.
Abstract: A surgical instrument for treating incontinence includes a handle portion elongate along a handle axis and a needle portion connected to the handle portion. The needle portion has a spacer portion along the handle axis, and has a distal end. The needle portion includes a substantially helical portion that is a variable spiral portion, extending from the straight spacer portion. The variable spiral portion is sized and shaped to extend from an incision substantially adjacent the patient's obturator foramen through the obturator foramen along a path in a region between the superior pubic ramus and the inferior pubic ramus. The needle portion has a structure near the distal end that associates the instrument with an implantable material configured to treat incontinence. ...


Inventors: Kimberly A. Anderson, Brian R. Watschke, Georges Mellier, Johann J. Neisz
USPTO Applicaton #: #20110282133 - Class: 600 30 (USPTO) - 11/17/11 - Class 600 
Surgery > Body Inserted Urinary Or Colonic Incontinent Device Or Treatment (e.g., Artificial Sphincters, Etc.) >Implanted

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The Patent Description & Claims data below is from USPTO Patent Application 20110282133, Transobturator surgical articles and methods.

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CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. patent application Ser. No. 11/245,364, filed Oct. 5, 2005, which is a continuation of U.S. patent application Ser. No. 10/306,179, filed Nov. 27, 2002, now U.S. Pat. No. 7,070,556, which claims the benefit under 35 USC §119(e) from U.S. Provisional Application Ser. Nos. 60/362,806, filed Mar. 7, 2002; 60/380,797, filed May 14, 2002; 60/402,007, filed Aug. 8, 2002; and 60/414,865 filed Sep. 30, 2002, all of which are herein incorporated by reference in their entireties.

BACKGROUND

Urinary incontinence is a significant health concern worldwide. In the urology field, needles, suture passers and ligature carriers are utilized in a variety of procedures, many of which are designed to treat incontinence. Examples of such surgical instruments included Stamey needles, Raz needles, and Pereyra needles. See Stamey, Endoscopic Suspension of the Vesical Neck for Urinary Incontinence in Females, Ann. Surgery, pp. 465-471, October 1980; and Pereyra, A Simplified Surgical Procedure for the Correction of Stress Incontinence in Women, West. J. Surg., Obstetrics & Gynecology, pp. 243-246, July-August 1959.

A pubovaginal sling procedure is a surgical method involving the placement of a sling to stabilize or support the bladder neck or urethra. There are a variety of different sling procedures. Descriptions of different sling procedures are disclosed in U.S. Pat. Nos. 5,112,344; 5,611,515; 5,842,478; 5,860,425; 5,899,909; 6,039,686; 6,042,534 and 6,110,101.

Some pubovaginal sling procedures extend a sling from the rectus fascia in the abdominal region, to a position below the urethra, and back again to the rectus fascia. Although serious complications associated with sling procedures are infrequent, they do occur. Complications include urethral obstruction, prolonged urinary retention, bladder perforations, damage to surrounding tissue, and sling erosion.

The Tension-free Vaginal Tape (TVT) procedure (available from Ethicon, of NJ.) utilizes a Prolene™ nonabsorbable, polypropylene mesh. Problems with the TVT procedure are documented in the literature and patents. Problems associated with the TVT procedures and the like are acknowledged and described in PCT publication nos. PCT WO 00/74613 and PCT WO 00/74594, U.S. Pat. Nos. 6,273,852; 6,406,423; and 6,478,727, and published U.S. Pat. Application Nos. 2002\'0091373A1, 2002/0107430A1, 2002/0099258A1 and 2002/0099259A1. A cadaver study indicated that the TVT needle is placed in close proximity to sensitive tissue such as superficial epigastric vessels, inferior epigastric vessels, the external iliac vessel and the obturator. See, Walters, Mark D., Percutaneous Suburethral Slings: State of the Art, presented at the conference of the American Urogynecologic Society, Chicago (October 2001) and PCT International Publication No. WO 02/26108.

Additional sling procedures are disclosed in Published U.S. Pat. Appl. No. US 2001/0018549A1, and PCT Publication Nos. WO 02/39890 and WO 02/069781.

A significant percentage of pubovaginal sling procedures are conducted after previous pelvic surgery. A pubovaginal sling procedure can be particularly challenging if the patient has scarring as a result of previous pelvic surgeries or other anatomical problems. The additional complications presented by significant scarring present surgeons with a greater surgical challenge and may lead some surgeons to forego an otherwise beneficial sling procedure. Unfortunately, this reduces a patient\'s options for treating incontinence.

Published U.S. Pat. Appl. No. 2002/0099260 discloses an implantable device or tape for use in correcting urinary incontinence. The tape includes sprayed polypropylene fibers that result in a strong implantable device. The tape also has a silicone-coated portion and tapered nee ends. The procedure utilizes an Emmet needle that includes an eyelet. To create the eyelet, the distal portion of the Emmet needle is enlarged. A surgical procedure using an Emmet needle is believed to be described in the French publication D. Dargent, S. Bretones, P. George, and G. MeHier, Pose d\'un ruban sous uretral oblique par voie obturatrice dans le traitement de l\'incontinence urinaire feminine, Gynecol. Obstet. Fertil. 2002; 30: 576-582.

In the procedure described in U.S. Pat. Appl. No. 2002/0099260, an incision is made in the perineal skin facing the obturator and in the groin. The Emmet needle is first inserted through the cutaneous incision. The Emmet needle is first introduced perpendicular to the perineum for about 15 mm (passing through the internal obturator muscle as far as just outside the ischiopubic branch). The Emmet needle is then allowed to describe its curvature. The free end of the tape is then slipped into the eyelet of the needle. The needle/tape connection is thus reversible as one merely needs to unthread the tape from the eyelet to separate the tape from the needle. Separation of the tape and needle while both are within the body is undesirable as it would require the needle to be repassed through the body.

The needle with the tape extending through the eyelet is then pulled back though the skin incision. The eyelet and threaded tape present a sudden discontinuity encountered by the tissue that can make tape and needle passage inconvenient and unnecessarily irritative or traumatic to tissue. Additionally, the final placement of the sling may not be optimum in this procedure.

SUMMARY

OF THE INVENTION

In one aspect, the present invention includes a handle portion elongate along a handle axis and a needle portion connected to the handle portion. The needle portion has a substantially straight spacer portion along the handle axis, and has a distal end. The needle portion includes a substantially helical portion that is a variable spiral portion, extending from the straight spacer portion. The variable spiral portion is sized and shaped to extend from an incision substantially adjacent the patient\'s obturator foramen through the obturator foramen along a path in a region between the superior pubic ramus and the inferior pubic ramus. The needle portion has a structure near the distal end that associates the instrument with an implantable material configured to treat incontinence.

In another embodiment, the invention includes a surgical instrument for treating incontinence. The instrument includes a handle portion elongated along a handle axis, a needle portion having a substantially straight spacer portion along the handle axis, a substantial structure in three dimensions and a distal end. The needle portion has a substantially helical portion that is a variable spiral portion extending from the spacer portion and is sized and shaped to extend from an incision substantially adjacent the patient\'s obturator foramen through the obturator foramen along a path in a region between the superior pubic ramus and the inferior pubic ramus such that the needle can be associated with an implantable material for treating the incontinence. The variable spiral portion has a tissue clearance depth of greater than about 1.5 inches and less than about 2.5 inches. The needle portion includes structure near the distal end for associating the instrument with the implantable material for treating the incontinence.

The instrument comprises a handle portion, and a needle portion with a distal end. Unlike the Emmet needle of the prior art, the novel instrument has substantial structure in three dimensions. The needle portion is sized and shaped to extend between an incision substantially adjacent the patient\'s obturator foramen and a vaginal incision. The needle portion also has structure near the distal end for associating the instrument with an implantable material for treating the incontinence. Preferably, the needle portion includes a portion that is substantially helically shaped, more preferably, it is a variable helix shape. The structure for associating the instrument with an implantable material can comprise an eyelet or a dilator or other structure.

The handle portion is preferably elongate along a handle axis, the needle portion includes a substantially straight spacer portion along the handle axis, and a variable spiral portion extending from the spacer portion. The variable spiral portion preferably has a tissue clearance depth of greater than about 1.5 inches and less than about 2.5 inches, and a maximum width of greater than about 1.25 inches and less than about 3 inches.

In one embodiment, the handle portion is elongate defining a mid plane, and the distal end of the novel needle includes a distal tip situated substantially near an extension of the mid plane that is spaced from the handle portion.

In another aspect, the present invention comprises a surgical instrument comprising first and second ends, the instrument having a portion that is sized and shaped to extend between a vaginal incision and an incision substantially adjacent the patient\'s obturator foramen. One of the ends has a handle, at least the other end having securement surfaces for snap fitting the instrument to another surgical component used to treat incontinence. The snap fit preferably provides a substantially permanent attachment between the instrument and the other surgical component. Preferably, the other surgical component comprises a dilator of a sling assembly. The instrument and the dilator preferably have complementary engagement surfaces for resisting separation of the instrument from the dilator once they are snap fitted together.

In another aspect, the novel instrument comprises a handle portion, a needle portion having a substantially straight portion projecting from the handle portion and a variable spiral portion with a distal end. The variable spiral portion is sized and shaped to extend between an incision substantially adjacent the patient\'s obturator foramen and a vaginal incision. The needle portion has structure near the distal end for associating the instrument with an implantable material for treating incontinence.

In yet another aspect, the present invention comprises a surgical assembly for treating incontinence. The assembly includes a surgical instrument having a handle portion, a needle portion having substantial structure in three dimensions and a distal end. The needle portion has a portion that is sized and shaped to extend between an incision substantially adjacent a patient\'s obturator foramen and a vaginal incision. The assembly may also include an implantable synthetic material and a sheath situated about the implantable synthetic material. In this aspect, the needle portion has structure near the distal end for associating the instrument with the implantable synthetic material. The assembly may further including a dilator. Alternatively, needle may comprise an eyelet.

When the assembly includes a dilator, the dilator preferably has engagement surfaces for connecting the dilator to the instrument. The dilator is preferably operatively associated with the sheath and implantable material. The structure of the needle portion near the distal end comprises surfaces complementary with the engagement surfaces of the dilator for resisting separation of the instrument from the dilator once they are engaged. Preferably, the needle portion is sized and shaped for a predetermined side of a patient, and the handle portion includes indicia indicating the predetermined side of the patient.

In another aspect, the present invention comprises a surgical assembly comprising a first surgical instrument for use on a right side of a patient. The first surgical instrument comprises a handle portion and a needle portion having substantial structure in three dimensions and a distal end. The needle portion has a portion that is sized and shaped to extend between an incision substantially adjacent the obturator foramen on the patient\'s right side and a vaginal incision. The assembly also has a second surgical instrument for use on a left side of a patient. The second surgical instrument comprises a handle portion and a needle portion having substantial structure in three dimensions and a distal end. The needle portion of the second instrument has a portion that is sized and shaped to extend between an incision substantially adjacent the obturator foramen on the patient\'s left side and a vaginal incision.

Preferably, the handle portion of the first surgical instrument includes indicia indicating the first surgical instrument is for use on the right side of the patient, and the handle portion of the second surgical instrument includes indicia indicating the second surgical instrument is for use on the left side of the patient. The assembly may also include an implantable knitted polypropylene material, and a sheath situated about the implantable synthetic material. The first and second surgical instruments may include an eyelet for receiving a suture to tie the surgical instrument to the implantable material. Alternatively, the assembly can have first and second dilators for associating the first and second surgical instruments with the implantable material.

In another aspect the ‘present invention comprises a surgical instrument for treating incontinence comprising a needle sized and shaped to either a) initially extend through an incision substantially adjacent a patient\'s obturator foramen and then through a vaginal incision, or b) initially extend through a vaginal incision and subsequently through an incision substantially adjacent a patient\'s obturator foramen. Notably, such a surgical instrument need not have substantial structure in three dimensions. Preferably, the needle comprises a pair of ends having surfaces for affording association with either an implantable sling material or a removable handle. In one embodiment, the needle is sized and shaped for use on either the patient\'s right side or left side.

In another aspect, the present invention comprises methods for treating incontinence. Some methods may utilize substantially three dimensional needles, others need not require three dimension needles and other methods may utilize either three dimensional needles or substantially flat needles or both. One method comprises the steps of creating a vaginal incision, creating an incision substantially adjacent the patient\'s obturator foramen, providing an elongate surgical instrument comprising first and second ends, with at least one of the ends having securement surfaces, providing a sling assembly having an implantable sling for treating the incontinence, the sling assembly having surfaces complementary to the securement surfaces, passing the instrument between the incisions, then snap fitting the instrument to the sling assembly to provide a substantially permanent attachment between the instrument and the assembly, then passing the implantable material through tissue from the vaginal incision toward the incision substantially adjacent the patient\'s obturator foramen.



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stats Patent Info
Application #
US 20110282133 A1
Publish Date
11/17/2011
Document #
13156856
File Date
06/09/2011
USPTO Class
600 30
Other USPTO Classes
International Class
61F2/04
Drawings
41


Handle
Incision
Incontinence
Inferior
Instrument
Needle
Obturator Foramen
Ramus


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