Patent
Movable stent reinforcement
| العنوان: | Movable stent reinforcement |
|---|---|
| Patent Number: | 8,828,091 |
| تاريخ النشر: | September 09, 2014 |
| Appl. No: | 11/386663 |
| Application Filed: | March 23, 2006 |
| مستخلص: | The invention is directed towards a medical device including an elongate member having a side wall defining a lumen configured to convey a fluid within a body of a patient. The medical device includes a reinforcement member configured to be selectively coupled to the side wall of the elongate member at a first axial location and a second axial location, the second axial location being axially offset from the first axial location. In some embodiments, the reinforcement member includes a side wall defining a lumen and the elongate member is configured to extend through the lumen defined by the side wall of the reinforcement member. |
| Inventors: | Deal, Travis (Freedom, IN, US) |
| Assignees: | Boston Scientific Scimed, Inc. (Maple Grove, MN, US) |
| Claim: | 1. A medical device comprising: a stent having a side wall defining a lumen configured to convey a fluid within a body of a patient, the stent having a proximal retention portion configured to retain at least a portion of the stent in a bladder of the patient and a distal retention portion configured to retain at least a portion of the stent in a kidney of the patient, at least one of the proximal retention portion and the distal retention portion including a hook or a loop; and a reinforcement member including a side wall defining a lumen, the stent configured to be received within the lumen of the reinforcement member such that the reinforcement member can be slidably moved to a first axial location along an outer surface of the stent and removably coupled thereto such that the reinforcement member can be uncoupled and slidably moved to a second axial location along an outer surface of the stent, the reinforcement member having a clip including a protrusion, the protrusion being configured for insertion in a side port of the side wall of the stent when the stent is received within the lumen of the reinforcement member. |
| Claim: | 2. The medical device of claim 1 , wherein the stent is configured to extend through the lumen defined by the side wall of the reinforcement member such that the side wall of the stent and the side wall of the reinforcement member are substantially concentric. |
| Claim: | 3. The medical device of claim 1 , wherein the stent has a length that is greater than a length of the reinforcement member. |
| Claim: | 4. The medical device of claim 1 , wherein the stent includes a proximal portion including the proximal retention portion, a distal portion including the distal retention portion, and a medial portion disposed between the proximal portion and the distal portion, the reinforcement member being configured to be coupled to the medial portion. |
| Claim: | 5. The medical device of claim 1 , wherein when the reinforcement member is coupled to the side wall of the stent at the first axial location, the stent has a degree of resistance to deformation at the first axial location that is greater than a degree of resistance to deformation of a portion of the stent devoid of the reinforcement member. |
| Claim: | 6. The medical device of claim 1 , wherein when the reinforcement member is coupled to the side wall of the stent at the first axial location and the side wall of the stent is subjected to pressure from a stricture where the reinforcement is coupled, the lumen defined by the side wall of the stent at the first axial location has a cross-sectional area at least as large as a cross-sectional area of the lumen defined by the side wall at a portion of the stent that is not within the lumen of the reinforcement member. |
| Claim: | 7. The medical device of claim 1 , wherein the reinforcement member includes a therapeutic agent. |
| Claim: | 8. The medical device of claim 1 , wherein the reinforcement member includes an adhesive configured to couple the reinforcement member to the stent. |
| Claim: | 9. The medical device of claim 1 , wherein the reinforcement member includes a radiopaque material. |
| Claim: | 10. The medical device of claim 1 , wherein the reinforcement member is configured to be coupleable to the side wall of the stent in either of a first circumferential orientation on the stent and a second circumferential orientation on the stent, the second circumferential orientation being circumferentially offset from the first circumferential orientation. |
| Claim: | 11. The medical device of claim 1 , wherein the reinforcement member is one of a plurality of reinforcement members, each of the plurality of reinforcement members configured to be coupleable to the side wall of the stent at any of the first axial location, the second axial location, and a third axial location of the stent, the third axial location being axially offset from the first axial location and the second axial location. |
| Claim: | 12. The medical device of claim 1 , wherein a side wall of the reinforcement member has a thickness that varies circumferentially. |
| Claim: | 13. The medical device of claim 1 , wherein the stent retains its shape when the reinforcement member is coupled to the stent. |
| Claim: | 14. The medical device of claim 1 , wherein the reinforcement member is configured to be removably coupled to the outer surface of the stent such that an entire length of the reinforcement member is disposed on the outer surface of the stent. |
| Claim: | 15. The medical device of claim 1 , wherein the proximal retention portion includes a “J” hook. |
| Claim: | 16. The medical device of claim 1 , wherein the proximal retention portion includes a curved loop. |
| Claim: | 17. A method of selectively reinforcing a portion of a ureteral stent comprising: selecting a portion of the stent to be reinforced such that the portion will be disposed proximate to a stricture in a ureter of a patient when the ureteral stent is inserted into the ureter; sliding a reinforcement member having a clip including a protrusion along an outer surface of the stent to the selected portion of the stent; coupling the reinforcement member to the selected portion of the stent such that the reinforcement member may be removed from the selected portion of the stent and moved to a different portion of the stent, the coupling including inserting the protrusion of the clip in a side port of the outer surface of the stent, and inserting the ureteral stent into a body of the patient such that a proximal retention portion of the ureteral stent is disposed within a bladder of the patient and a distal retention portion of the ureteral stent is disposed within a kidney of the patient, at least one of the proximal retention portion and the distal retention portion including a hook or a loop. |
| Claim: | 18. The method of claim 17 , wherein the inserting the ureteral stent includes inserting the ureteral stent into the ureter of the patient such that the reinforcement member is disposed proximate to the stricture. |
| Current U.S. Class: | 623/2/366 |
| Patent References Cited: | 4850999 July 1989 Planck 4874360 October 1989 Goldberg et al. 5084065 January 1992 Weldon et al. 5123917 June 1992 Lee 5176625 January 1993 Brisson 5246445 September 1993 Yachia et al. 5681274 October 1997 Perkins et al. 5871537 February 1999 Holman et al. 5971967 October 1999 Willard 6053943 April 2000 Edwin et al. 6124523 September 2000 Banas et al. 6214037 April 2001 Mitchell et al. 6379382 April 2002 Yang 6656146 December 2003 Clayman et al. 6685744 February 2004 Gellman et al. 6764519 July 2004 Whitmore, III 6849069 February 2005 Clayman et al. 6887215 May 2005 McWeeney 6953476 October 2005 Shalev 2001/0020181 September 2001 Layne 2001/0021835 September 2001 Mitchell et al. 2002/0026231 February 2002 Shannon et al. 2002/0151957 October 2002 Kerr 2003/0036792 February 2003 Richter et al. 2003/0199993 October 2003 Gellman et al. 2004/0059279 March 2004 McWeeney et al. 2004/0111828 June 2004 Evans 2004/0193092 September 2004 Deal 2005/0075622 April 2005 Levine et al. 2005/0240278 October 2005 Aliski et al. 2006/0253104 November 2006 Pandey et al. 20 2005 001 416 May 2005 1 685 813 August 2006 WO 96/30070 October 1996 WO 99/09911 March 1999 WO 9909911 March 1999 |
| Other References: | Yamaguchi, O. et al., “Prototype of a Reflux-Preventing Ureteral Stent and its Clinical Use,” [Abstract], Urology, Oct. 1992, pp. 326-329, vol. 40, No. 4. [Retrieved online from Entrez PubMed on Aug. 29, 2005, URL: <http://www.ncbi.nlm.nih.govTest>.]. cited by applicant International Search Report and Written Opinion of the International Searching Authority for PCT/US2007/063057 mailed on Oct. 5, 2007, 12 pages. cited by applicant |
| Primary Examiner: | Iwamaye, Andrew |
| رقم الانضمام: | edspgr.08828091 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |