System for bone screw insertion

• US 6,663,642 B2
• Filed: 04/05/2001
• Issued: 12/16/2003
• Est. Priority Date: 11/13/1992
• Status: Expired due to Fees

• Current Assignee: Ams Research Corporation (Endo International PLC)
• Original Assignee: Ams Research Corporation (Endo International PLC)
• Inventors: Beyar, Mordechay, Sohn, Zeʼev
• Primary Examiner(s): Lewis, Ralph A.
• Application Number:
  US09/826,667
• Publication Number:
  US 20010012941A1
• Time in Patent Office: 985 Days
• Field of Search: 606/139, 606/220, 606/232, 606/144, 606/148
• US Class Current: 606/144
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0482 Needle or suture guides guides for drills, pins or wire A61B17/17; for puncturing needles A61B17/3403
• CPC Class Codes: A61B 17/0493 Protective devices for suturing, i.e. for protecting the patient's organs or the operator
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/42 Gynaecological or obstetrical instruments or methods ligaturing clamps or clips for the umbilical cord A61B17/122; curettage A61B17/320708; dilators A61M29/00
• CPC Class Codes: A61B 17/863 with thread interrupted or changing its form along shank, other than constant taper
• CPC Class Codes: A61B 17/869 characterised by an open form, e.g. wire helix
• CPC Class Codes: A61B 17/8875 Screwdrivers, spanners or wrenches
• CPC Class Codes: A61B 2017/00535 pneumatically or hydraulically operated A61B2017/22051, A61B2090/401 take precedence
• CPC Class Codes: A61B 2017/00805 Treatment of female stress urinary incontinence
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening lateral eyelet for attaching suture to needle A61B2017/06019
• CPC Class Codes: A61B 2017/0427 having anchoring barbs or pins extending outwardly from the anchor body
• CPC Class Codes: A61B 2017/0437 the barbs being resilient or spring-like
• CPC Class Codes: A61B 2017/044 with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/0443 the shaft being resilient and having a coiled or helical shape in the released state
• CPC Class Codes: A61B 2017/0454 the anchor being crimped or clamped on the suture
• CPC Class Codes: A61B 2017/0648 threaded, e.g. tacks with a screw thread
• CPC Class Codes: A61B 2017/2904 : curved, but rigid
• CPC Class Codes: A61F 2/0045 : Support slings

Abstract

A novel medical stapler and screw inserter device is disclosed herein wherein the medical instrument is formed in a non-linear or “C” or “V” shaped conformation. The non-linear shape allows the physician to accomplish a per vaginal anchor or screw insertion into a patient'"'"'s pubic bone, while locating the triggering hand outside of the vagina of the patient and employing a pulling force on the inserter/stapler, against the pubic bone of the patient. In addition, the weight of a patient'"'"'s body may be used to counterweight the recoil effect to minimize stapler recoil during ejection of a staple from the stapler into a patient. Novel bone anchor screws and a related bone screw driver and a method of inserting it into the pubic bone through the vagina are also described for per vaginal bladder neck suspension procedures.

Claims

1. A system for pervaginal bone screw insertion, comprising:

a bone screw; and

,

a non-linear inserter for inserting said bone screw, said inserter comprising a first end having a handle and a second end having a retractable shield, said bone screw being held at said second end with said retractable shield protecting said bone screw, wherein pulling said handle retracts said retractable shield and reveals sharp tips, said sharp tips being used to hold vaginal mucosa and soft tissue surrounding said screw and preventing soft tissue rotation during screwing of said bone screw through the soft tissue and into the bone.

2. A system as claimed in claim 1, wherein said non-linear inserter is a C-shaped inserter.

3. A system as claimed in claim 1, wherein said bone screw comprises a shaft comprising a leading tip and a trailing end, said shaft having screw threads, said bone screw further having a suture secured thereto.

4. A system as claimed in claim 3, wherein said bone screw further comprises leaf springs, said leaf springs expanding outward upon insertion of said bone screw in the bone of a patient to more securely fixate said bone screw in the bone.

5. A system as claimed in claim 3, wherein said bone screw is made of shape memory material.

6. A system as claimed in claim 3, wherein said suture is secured at a point about midway between said leading tip and said trailing end.

7. A system as claimed in claim 3, wherein said suture is secured at said trailing end.

8. A system as claimed in claim 3, wherein said bone screw has wire wrapped around said shaft.

9. A system as claimed in claim 3, wherein said leading tip is conical.

10. A system as claimed in claim 3, wherein said leading tip and said shaft form a taper.