Patent US5913853A successfully refreshed from Google Patents.
US5913853A
Expired / Lapsed
US
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Laser energy device and procedure for forming a channel within tissue
Assignee: Cardiodyne Inc
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Filing: 1997-01-30
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Granted: 1999-06-22
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Expires: 2017-01-30
Abstract
Abstract A surgical device is provided for forming a channel through or into tissue utilizing both mechanical energy and laser energy. The device includes a needle for forming the first part of the channel. The needle has an open bore. Mounted within the bore is an optical fiber for emitting laser energy to form the balance of the channel.
Inventors
- 👤 Marvin P. Loeb
- 👤 L. Dean Crawford
- 👤 Samuel M. Shaolian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:36
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B17/00; A61B2017/00017; A61B2017/00199; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B17/22; A61B2017/22072; A61B2017/22074; A61B2017/22075; A61B2017/22077; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392; A61B90/00; A61B90/03; A61B2090/033
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
96 words
A surgical device for forming a channel within tissue with laser energy and comprising: an optical fiber for transmission of said laser energy having a distal end; a housing; a hollow guide attached to said housing having a distal end; a needle defining an open bore received within said hollow guide through which the optical fiber is received; and an actuator operably connected to said needle for selectively extending said needle from said hollow guide relative to said distal end of said guide while said distal end of said fiber remains retracted within said needle bore.
Claim 2
Dependent Claim
96 words
A surgical device for forming a channel within tissue with laser energy and comprising: an optical fiber for transmission of said laser energy having a distal end; a housing; a hollow guide attached to said housing having a distal end; a needle defining an open bore received within said hollow guide through which the optical fiber is received; and an actuator operably connected to said needle for selectively extending said needle from said hollow guide relative to said distal end of said guide while said distal end of said fiber remains retracted within said needle bore.
Claim 3
Dependent Claim
21 words
The device of claim 1, wherein said hollow guide is a needle collar which is attached for reciprocation in said housing.
Claim 4
Dependent Claim
20 words
The device of claim 1, wherein said hollow guide is a needle collar which is removably attached to said housing.
Claim 5
Dependent Claim
27 words
The device of claim 1, wherein said hollow guide is a needle collar which is bent at an angle of approximately twenty to one hundred eighty degrees.
Claim 6
Dependent Claim
14 words
The device of claim 1, wherein said needle is operably coupled to said housing.
Claim 7
Dependent Claim
17 words
The device of claim 1, wherein said needle is operably mounted to said housing and removable therefrom.
Claim 8
Dependent Claim
14 words
The device of claim 1, wherein said needle is attached to said optical fiber.
Claim 9
Dependent Claim
15 words
The device of claim 7, wherein said fiber is operably coupled to a lasing device.
Claim 10
Dependent Claim
17 words
The device of claim 7, wherein a lens is attached to said needle within said open bore.
Claim 11
Dependent Claim
13 words
The device of claim 1, wherein said actuator is mounted in said housing.
Claim 12
Dependent Claim
25 words
The device of claim 1, wherein said actuator includes a cylinder that operates to advance said needle from said hollow guide by using compressed air.
Claim 13
Dependent Claim
14 words
The device of claim 1, wherein said actuator is mounted externally of said housing.
Claim 14
Dependent Claim
18 words
The device of claim 12, wherein said actuator includes a stepper motor operably attached to said optical fiber.
Claim 15
Dependent Claim
26 words
The device of claim 1, further comprising a needle adjustment means connected to said housing for selecting a desired needle extension distance from said hollow guide.
Claim 16
Dependent Claim
19 words
The device of claim 1, further comprising abutment means for limiting extension of said needle from said hollow guide.
Claim 17
Dependent Claim
14 words
The device of claim 1, wherein said optical fiber has a polyamide buffer coating.
Claim 18
Dependent Claim
17 words
The device of claim 1, wherein said optical fiber has a 500 to 1000 micron diameter core.
Claim 19
Dependent Claim
87 words
A surgical device for forming a channel within tissue with laser energy and comprising: an optical fiber for transmission of said laser energy; a housing; a hollow guide attached to said housing; a needle defining an open bore received within said hollow guide through which the optical fiber is received; an actuator operably connected to said needle for extending said needle from said hollow guide and; a display operably connected to said actuator for selecting a distance that said needle is to extend from said hollow guide.
Claim 20
Dependent Claim
87 words
A surgical device for forming a channel within tissue with laser energy and comprising: an optical fiber for transmission of said laser energy; a housing; a hollow guide attached to said housing; a needle defining an open bore received within said hollow guide through which the optical fiber is received; an actuator operably connected to said needle for extending said needle from said hollow guide and; a display operably connected to said actuator for selecting a distance that said needle is to extend from said hollow guide.
Claim 21
Independent Claim
73 words
A device for forming a channel within tissue with laser energy, said device comprising: a housing; a needle mounted to said housing and having a through bore; an optical fiber mounted within said bore for emitting said laser energy to form said channel; and an actuator operably connected to said needle and said housing for reciprocally moving the distal end of said needle and said optical fiber a preselected distance from said housing.
Claim 22
Independent Claim
73 words
A device for forming a channel within tissue with laser energy, said device comprising: a housing; a needle mounted to said housing and having a through bore; an optical fiber mounted within said bore for emitting said laser energy to form said channel; and an actuator operably connected to said needle and said housing for reciprocally moving the distal end of said needle and said optical fiber a preselected distance from said housing.
Claim 23
Dependent Claim
13 words
The device of claim 19, further including a needle collar surrounding said needle.
Claim 24
Dependent Claim
16 words
The device of claim 20, wherein said needle collar is attached for reciprocation in said housing.
Claim 25
Dependent Claim
15 words
The device of claim 20, wherein said needle collar is removably attached to said housing.
Claim 26
Dependent Claim
22 words
The device of claim 20, wherein said needle collar is bent at an angle of approximately twenty to one hundred eighty degrees.
Claim 27
Dependent Claim
13 words
The device of claim 19, wherein said needle is detachable from said housing.
Claim 28
Dependent Claim
14 words
The device of claim 19, wherein said needle is crimped onto the optical fiber.
Claim 29
Dependent Claim
13 words
The device of claim 19, wherein said actuator is attached to said housing.
Claim 30
Dependent Claim
26 words
The device of claim 26, wherein said actuator includes a cylinder and is operated by using compressed air to advance said needle from said hollow guide.
Claim 31
Dependent Claim
13 words
The device of claim 19, wherein said actuator is remote from said housing.
Claim 32
Dependent Claim
18 words
The device of claim 28, wherein said actuator includes a stepper motor operably attached to said optical fiber.
Claim 33
Dependent Claim
14 words
The device of claim 19, wherein said optical fiber has a polyamide buffer coating.
Claim 34
Dependent Claim
18 words
The device of claim 19, wherein said optical fiber has a core diameter of 500 to 1000 microns.
Claim 35
Independent Claim
85 words
A device for forming a channel within tissue with laser energy, said device comprising: a housing; a needle mounted to said housing and having a through bore; an optical fiber mounted within said bore for emitting said laser energy to form said channel; an actuator operably connected to said needle and said housing for reciprocally moving the distal end of said needle and said optical fiber a preselected distance from said housing; and a display operably connected to said actuator for specifying said preselected distance.
Claim 36
Independent Claim
85 words
A device for forming a channel within tissue with laser energy, said device comprising: a housing; a needle mounted to said housing and having a through bore; an optical fiber mounted within said bore for emitting said laser energy to form said channel; an actuator operably connected to said needle and said housing for reciprocally moving the distal end of said needle and said optical fiber a preselected distance from said housing; and a display operably connected to said actuator for specifying said preselected distance.
Claim 37
Dependent Claim
25 words
The device of claim 19, further comprising a needle adjustment means connected to said housing for selecting a desired needle penetration depth within said tissue.
Claim 38
Independent Claim
103 words
A method of operating on human heart tissue within a chest cavity, said heart tissue having an epicardium and an endocardium, said method comprising: placing a collar onto said heart tissue; penetrating said heart tissue with a needle having a through bore with an optical fiber mounted within said bore after placing said collar onto said heart tissue; transmitting laser energy through said optical fiber; emitting laser energy from said optical fiber to form a channel within one heart beats; detecting when said optical fiber has penetrated to a desired depth within said heart tissue; and withdrawing said needle from said heart tissue.
Claim 39
Independent Claim
103 words
A method of operating on human heart tissue within a chest cavity, said heart tissue having an epicardium and an endocardium, said method comprising: placing a collar onto said heart tissue; penetrating said heart tissue with a needle having a through bore with an optical fiber mounted within said bore after placing said collar onto said heart tissue; transmitting laser energy through said optical fiber; emitting laser energy from said optical fiber to form a channel within one heart beats; detecting when said optical fiber has penetrated to a desired depth within said heart tissue; and withdrawing said needle from said heart tissue.
Claim 40
Independent Claim
107 words
A method of operating on human heart tissue within a chest cavity, said heart tissue having an epicardium and an endocardium, said method comprising: placing a collar onto said heart tissue; penetrating said heart tissue with a needle having a through bore with an optical fiber mounted within said bore after placing said collar onto said heart tissue; transmitting laser energy through said optical fiber; emitting laser energy from said optical fiber to form a channel with holmium laser energy within one heart beat; detecting when said optical fiber has penetrated to a desired depth within said heart tissue; and withdrawing said needle from said heart tissue.
Claim 41
Independent Claim
107 words
A method of operating on human heart tissue within a chest cavity, said heart tissue having an epicardium and an endocardium, said method comprising: placing a collar onto said heart tissue; penetrating said heart tissue with a needle having a through bore with an optical fiber mounted within said bore after placing said collar onto said heart tissue; transmitting laser energy through said optical fiber; emitting laser energy from said optical fiber to form a channel with holmium laser energy within one heart beat; detecting when said optical fiber has penetrated to a desired depth within said heart tissue; and withdrawing said needle from said heart tissue.
Claim 42
Independent Claim
132 words
A method of operating on human heart tissue within a chest cavity, said heart tissue having an epicardium and an endocardium, said method comprising: placing a collar onto said heart tissue; advancing a housing having a hollow guide mounted within said housing towards said heart tissue; urging said guide against said heart tissue; retracting said guide within said housing; extending needle from said guide; penetrating said heart tissue with said needle having a through bore with an optical fiber mounted within said bore after placing said collar onto said heart tissue; transmitting laser energy through said optical fiber; emitting laser energy from said optical fiber to form a channel; detecting when said optical fiber has penetrated to a desired depth within said heart tissue; and withdrawing said needle from said heart tissue.
Claim 43
Independent Claim
132 words
A method of operating on human heart tissue within a chest cavity, said heart tissue having an epicardium and an endocardium, said method comprising: placing a collar onto said heart tissue; advancing a housing having a hollow guide mounted within said housing towards said heart tissue; urging said guide against said heart tissue; retracting said guide within said housing; extending needle from said guide; penetrating said heart tissue with said needle having a through bore with an optical fiber mounted within said bore after placing said collar onto said heart tissue; transmitting laser energy through said optical fiber; emitting laser energy from said optical fiber to form a channel; detecting when said optical fiber has penetrated to a desired depth within said heart tissue; and withdrawing said needle from said heart tissue.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-21 | 2002-12-21 | 2003-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-21 | 2006-12-21 | 2007-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-21 | 2010-12-21 | 2011-06-22 | $7700.00 | Window Closed / Lapsed |