Patent US5403338A successfully refreshed from Google Patents.
US5403338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punch for opening passages between two compartments
Assignee: Scanlan International Inc
•
Filing: 1993-01-21
•
Granted: 1995-04-04
•
Expires: 2013-01-21
Abstract
Abstract A punch for opening passages between two compartments comprises an outer hollow tube and an inner needle tube. The outer hollow tube has a sharp distal edge constituting a circular knife. The needle tube is provided with screw actuating member at a proximal end thereof and a bevelled tip at a distal end thereof. A screw mechanism is located upon a distal end of the needle tube, and the screw mechanism is connected to a cutting disc. The mechanism is screw-actuated by the actuating member. The punch is particularly suitable in cardiac surgery and cardiology as a cardiac catheter and in opening the inter-atrial septum of babies.
Inventors
- 👤 Simcha Milo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32053; A61B17/11; A61B2017/1107; A61B17/34; A61B2017/348; A61B2017/3482; A61B2017/349
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
125 words
A punch comprising an outer hollow tube having a sharp distal circumferential cutting edge; a needle having a proximal and a distal end, provided on the proximal end of the needle with rotational actuating means, said needle received within the hollow tube and having a bevelled tip at the distal end of the needle; and a screw mechanism located upon the distal end of the needle proximal of the bevelled tip, and a cutting disc capable of engaging said cutting edge, said cutting disc located upon the distal end of the needle proximal of the screw mechanism, said screw mechanism and said cutting disc configured for rotation with said needle, said screw mechanism and said cutting disc rotated by rotation of said rotational actuating means.
Claim 2
Dependent Claim
125 words
A punch comprising an outer hollow tube having a sharp distal circumferential cutting edge; a needle having a proximal and a distal end, provided on the proximal end of the needle with rotational actuating means, said needle received within the hollow tube and having a bevelled tip at the distal end of the needle; and a screw mechanism located upon the distal end of the needle proximal of the bevelled tip, and a cutting disc capable of engaging said cutting edge, said cutting disc located upon the distal end of the needle proximal of the screw mechanism, said screw mechanism and said cutting disc configured for rotation with said needle, said screw mechanism and said cutting disc rotated by rotation of said rotational actuating means.
Claim 3
Dependent Claim
11 words
A punch according to claim 1, wherein the needle is hollow.
Claim 4
Dependent Claim
32 words
A punch according to claim 2, wherein a channel passes through the needle tube, said channel being provided with an outlet exterior to said punch in fluid flow communication with said channel.
Claim 5
Dependent Claim
12 words
A punch according to claim 1, wherein the cutting disc is circular.
Claim 6
Dependent Claim
12 words
A punch according to claim 1, wherein the cutting disc is tear-drop-like.
Claim 7
Dependent Claim
12 words
A punch according to claim 4, wherein the cutting disc is flat.
Claim 8
Dependent Claim
12 words
A punch according to claim 4, wherein the cutting disc is uneven.
Claim 9
Dependent Claim
12 words
A punch according to claim 5, wherein the cutting disc is flat.
Claim 10
Dependent Claim
12 words
A punch according to claim 5, wherein the cutting disc is uneven.
Claim 11
Dependent Claim
85 words
A method for punching an aperture in a tissue using a punch according to claim 1 comprising: forming an initial penetration of the tissue with the needle bevelled tip; rotationally advancing the screw mechanism to expand the initial penetration until the cutting disc passes through the tissue to a side opposite the initial penetration; and continuing to advance the punch until the sharp distal cutting edge cuts through the tissue, thereby forming an aperture in the tissue having a cross-sectional shape of the cutting disc.
Claim 12
Dependent Claim
97 words
A punch comprising: a hollow tube having a proximal and a distal end, said distal end constituting a knife cutting edge; a needle having a proximal and a distal end slidably received within the hollow tube, the needle distal end configured with a terminal bevelled tip, with a screw thread proximal of the bevelled tip, and with a cutting disc proximal of the screw thread, said cutting disc capable of engaging the knife cutting edge, the needle proximal end provided with a handle for screw rotating the bevelled tip, the screw thread and the cutting disc therewith.
Claim 13
Dependent Claim
97 words
A punch comprising: a hollow tube having a proximal and a distal end, said distal end constituting a knife cutting edge; a needle having a proximal and a distal end slidably received within the hollow tube, the needle distal end configured with a terminal bevelled tip, with a screw thread proximal of the bevelled tip, and with a cutting disc proximal of the screw thread, said cutting disc capable of engaging the knife cutting edge, the needle proximal end provided with a handle for screw rotating the bevelled tip, the screw thread and the cutting disc therewith.
Claim 14
Dependent Claim
13 words
A punch according to claim 11, wherein the needle has a hollow interior.
Claim 15
Dependent Claim
22 words
A punch according to claim 12, wherein the needle is provided with an outlet in fluid flow communication with the hollow interior.
Claim 16
Dependent Claim
12 words
A punch according to claim 11, wherein the cutting disc is circular.
Claim 17
Dependent Claim
12 words
A punch according to claim 14, wherein the cutting disc is flat.
Claim 18
Dependent Claim
52 words
A punch according to claim 14, wherein the cutting disc is uneven, such that only a portion of a cutting edge thereof comes into contact with material to be cut, and such that cutting is achieved between the cutting disc and the knife cutting edge at the distal end of the tube.
Claim 19
Dependent Claim
12 words
A punch according to claim 11, wherein the cutting disc is tear-drop-like.
Claim 20
Dependent Claim
12 words
A punch according to claim 17, wherein the cutting disc is flat.
Claim 21
Dependent Claim
12 words
A punch according to claim 17, wherein the cutting disc is uneven.
Claim 22
Dependent Claim
84 words
A method for punching an aperture in a material using a punch according to claim 10 comprising: forming an initial penetration of the material with the needle bevelled tip; rotationally advancing the screw thread to expand the initial penetration until the cutting disc passes through the material to a side opposite the initial penetration; and continuing to advance the punch until the knife cutting edge cuts through the material, thereby forming an aperture in the material having a cross-sectional shape of the cutting disc.
References Cited (Backward Citations)
US4018228A
Cited
US4191191A
Cited
US4216776A
Cited
US5192294A
Cited
US5009643A
Cited
US5129913A
Cited
US5242427A
Cited
US5139503A
Cited
US5258003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-03 | 1998-10-03 | 1999-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-03 | 2002-10-03 | 2003-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-03 | 2006-10-03 | 2007-04-04 | $7700.00 | Window Closed / Lapsed |