Collagen forceps

• US 5,921,990 A
• Filed: 08/06/1997
• Issued: 07/13/1999
• Est. Priority Date: 08/06/1997
• Status: Expired due to Fees

• Current Assignee: Eagle Vision
• Original Assignee: Eagle Vision
• Inventors: Webb, Nicholas J.
• Primary Examiner(s): Jackson, Gary
• Assistant Examiner(s): NGO, LIEN M
• Application Number:
  US08/907,199
• Time in Patent Office: 706 Days
• Field of Search: 606/205, 606/206, 606/207, 606/210, 606/211, 606/107
• US Class Current: 606/110
• CPC Class Codes: A61B 17/30 Surgical pincettes without pivotal connectionsfor holding suture needles or materials A61B17/0483; wound clamps A61B17/08 ; hand-held gripping tools without pivotal connections in general B25B9/02
• CPC Class Codes: A61B 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping channel for multiple instruments A61B2017/3445; instrument channel A61B2017/22072; replaceable heads A61B2017/2931; suction A61M1/00
• CPC Class Codes: A61F 9/00772 Apparatus for restoration of tear ducts

Abstract

A collagen forceps includes two elongate members coupled at a proximal live hinge. Each elongate member is provided with a knurled finger pad ergonomically contoured to stably receive a finger or thumb of a physician, and a manipulation tip having an interior collagen rod gripping surface. The gripping surfaces each include an angulated or curved surface provided with ridges and shaped to engage the collagen rod axially with the elongate members. Preferably each manipulation tip is also provided with a silicon boot. In addition, the instrument is also provided with a projection having a dilation/insertion tip. The collagen forceps of the invention enables a more controlled implantation of collagen rods through the punctal opening and into the naso-lacrimal duct. The contoured finger pads provide a physician with a more comfortable and more controllable instrument. The gripping surfaces of the manipulation tips, especially when provided with silicon boots, enable easy grasping of the collagen rods and stably engage the rods such that the collagen rod cannot rotate about or slide away from the gripping surfaces. As such, the collagen forceps permits relatively easy manipulation of the rods into the ducts. The dilation/insertion tip of the projection can be used to dilate the punctal opening to facilitate collagen rod insertion therein, and may also be used to push the collagen rod deep into the punctal opening.

Claims

1. A collagen forceps for use by a practitioner to insert a collagen rod into a punctal opening of an eye, comprising:

a) a first elongate member having a first end provided with a collagen rod gripping means, and a second end;

b) a second elongate member having a first end provided with a collagen rod gripping means, and a second end;

c) means for dilating the punctal opening of the eye, said means for dilating comprising projection directed substantially opposite said first end of said first elongate member, said projection coupled to at least one of said first and second elongate members; and

d) coupling means hingeably coupling said second end of said first elongate member to said second end of said second elongate members.

2. A collagen forceps according to claim 1, wherein:

said means for at least one of dilating and pushing is a protuberance extending from said first end of said first elongate member.

3. A collagen forceps according to claim 1, wherein:

said projection is tapered.

4. A collagen forceps according to claim 1, wherein:

said collagen forceps has a longitudinal axis, and said collagen rod gripping means grip the collagen rod circumferentially when the collagen rod is substantially parallel to said longitudinal axis of said collagen forceps.

5. A collagen forceps according to claim 1, wherein:

said first elongate member includes a first finger engagement means contoured to stably receive one of a finger and thumb of said practitioner, and

said second elongate member includes a second finger engagement means contoured to stably receive the other of a finger and thumb of said practitioner

wherein the practitioner, by placement of his or her finger and thumb on the respective first and second finger engagement means and by movement of his or her finger and thumb toward each other, is able to move said gripping means of said first elongate member toward said gripping means of said second elongate member and releasably securably grip the collagen rod.

6. A collagen forceps according to claim 1, further comprising:

d) a flexible boot provided over said first end of at least one of said first and second elongate members.

7. A collagen forceps according to claim 6, wherein:

said flexible boot is made of silicon and is provided with a plurality of ridges on a portion of said flexible boot which is used to grasp the collagen rod.

8. A collagen forceps having a longitudinal axis, said collagen forceps for use by a practitioner to insert a collagen rod having a longitudinal axis into a punctal opening of an eye, comprising:

a) a first elongate member having a first end, a first collagen rod gripping means provided at said first end, and a first finger engagement means;

b) a second elongate member having a first end, a second collagen rod gripping means provided at said first end, and a second finger engagement means; and

c) coupling means for hingeably coupling said first and second elongate members,

said first and second collagen rod gripping means for gripping the collagen rod along more than two longitudinal lines parallel to the longitudinal axis of the collagen rod when the collagen rod is substantially parallel to said longitudinal axis of said collagen forceps, and

said finger engagement means of said first elongate member for receiving one of a finger or thumb of the practitioner, and said finger engagement means of said second elongate member for receiving the other of a finger or thumb of the practitioner,

wherein the practitioner, by placement of his or her finger and thumb on said finger engagement means and by movement of his or her finger and thumb toward each other, is able to move said gripping means of said first elongate member toward said gripping means of said second elongate member and releasably securably grip the collagen rod.

9. A collagen forceps according to claim 8, wherein:

each of said first and second gripping means is a channel oriented substantially parallel to said longitudinal axis of said collagen forceps.

10. A collagen forceps according to claim 9, wherein:

said channel of one of said first and second gripping means includes at least one raised ridge oriented substantially perpendicular to said channel.

11. A collagen forceps according to claim 8, further comprising:

d) a flexible boot provided over said first end of at least one of said first and second elongate members.

12. A collagen forceps according to claim 11, wherein:

said flexible boot is made of silicon and is provided with a plurality of ridges on a portion of said flexible boot which is used to grasp the collagen rod.

13. A collagen forceps according to claim 8, wherein:

said first and second finger engagement means of each of said first and second elongate members is contoured to stably receive at least one of a finger and thumb of said practitioner.

14. A collagen forceps according to claim 8, further comprising:

d) means for at least one of dilating the punctal opening of the eye, and pushing the collagen rod below the punctal opening of the eye,

said means for at least one of dilating and pushing being coupled to at least one of said first and second elongate members.

15. A collagen forceps according to claim 14, wherein:

said means for at least one of dilating and pushing is a projection extending from said coupling means.

16. A collagen forceps according to claim 8, wherein:

said first ends of said first and second elongate members are tapered toward said longitudinal axis of said collagen forceps,

such that when said first and second gripping means of said first and second elongate members are moved toward each other, said tapered first ends form a means for at least one of dilating the punctal opening the punctal and pushing the collagen rod below the punctal opening of the eye.

17. A collagen forceps for use by a practitioner to insert a collagen rod into a punctal opening of an eye, comprising:

a) a first elongate member having a first end, a second end, and a first contoured finger pad;

b) a second elongate member having a first end, a second end, and a second contoured finger pad;

c) a live hinge coupling said second end of said first elongate member to said second end of said second elongate member,

wherein said first and second elongate members and said live hinge are made from a unitary piece of material, and

wherein said first and second contoured finger pads are concavely contoured to stably receive one of finger and thumb of the practitioner,

such that when the practitioner places his or her finger and thumb on said first and second finger engagement means and moves his or her finger and thumb toward each other, the practitioner is able to move said first end of said first elongate member toward said first end of said second elongate member to releasably securely grip the collagen rod.

18. A collagen forceps according to claim 17, wherein:

said collagen forceps includes a longitudinal axis and said first ends of said first and second elongate members are tapered toward said longitudinal axis of said collagen forceps,

such that when said first ends of said first elongate member and said first end of said second elongate member are moved toward each other, said tapered first ends form a means for at least one of dilating the punctal opening of the eye and pushing the collagen rod below the punctal opening of the eye.

19. A collagen forceps according to claim 17, further comprising:

d) means for at least one of dilating the punctal opening of the eye and pushing the collagen rod below the punctal opening of the eye,

said means for at least one of dilating and pushing formed at said first end of at least one of said first and second elongate members.

20. A collagen forceps according to claim 17, further comprising:

d) a flexible boot provided over said first end of at least one of said first and second elongate members.

21. A collagen forceps according to claim 20, wherein:

said flexible boot is made of silicon and is provided with a plurality of ridges on a portion of said flexible boot which is used to grasp the collagen rod.

22. A collagen forceps according to claim 17, wherein:

said finger pads are provided with ridges engageable by the finger and thumb of the practitioner.