Patent US5895395A successfully refreshed from Google Patents.
US5895395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial to full thickness suture device & method for endoscopic surgeries
Assignee: Individual
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Filing: 1997-07-17
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Granted: 1999-04-20
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Expires: 2017-07-17
Abstract
Abstract This invention relates to devices and methods for making partial thickness or full thickness sutures in tissues endoscopically. The preferred embodiment comprises a suture delivering needle and a suture receiving needle which are in substantially parallel alignment. A shape memory needle with a pre-formed semi-circular shape is used to bridge a gap formed between the suture delivery needle and receiving needle. In preparation for a surgical procedure, the shape memory needle is retracted and partially straightened in the suture delivering needle. After determining the placement of suture, the suture delivering and suture receiving needles are pierced into the repairing tissue. The semi-circular shape memory needle is deployed and resumes the appropriate pre-formed shape while piercing the tissue and extending into the distal opening of the suture receiving needle. A suture is then passed down from the proximal opening of the shape memory needle into the distal opening of the suture receiving needle, then out of the proximal opening of the receiving needle. The shape memory needle is then retracted back into the suture delivering needle, leaving only the suture bridging the distal openings of the delivery needle and receiving needle. The suture device is then withdrawn and the suture is tied to fasten the tissue. ______________________________________ NUMERAL REFERENCES IN DRAWINGS ______________________________________ Suture Delivering Needle (SDN) 1 SDN Distal Opening 2 Gliding Slot 3 Trough 4 Strain, Stress Relief Window (SRW) 5 Endoscopic Scissors 6 Shape Memory Needle (SMN) 7 SMN Distal Opening 8 SMN Proximal Beveled Opening 9 Suture Receiving Needle (SRN) 10 SRN Distal Opening 11 Receiving Slot for SMN 12 Penetration Markers 13 Body 14 Equipment Inlet 15 Equipment Outlet 16 Operating Lever 17 Suture Threading Funnel 18 Handle 19 Suture Outlet 20 Suture 21 Filament 22 Skin Opening (Cannula not shown) 23 Meniscal Tear 24 Anterior Cruciate Ligament Tear 25 Knot Pusher 26 Arthroscope 27 ______________________________________
Inventors
- 👤 Teresa T. Yeung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:46
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0469; A61B17/0401; A61B2017/0406; A61B2017/0472; A61B2017/0474
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
246 words
A suture device comprising: (a) a body having a proximal end, a distal end, and plurality of holes in substantially parallel alignment running from said proximal end to said distal end; (b) a handle located substantially near said proximal end of said body; (c) a plurality of needles fixed longitudinally through said plurality of holes and extending out of said body, said plurality of needles having proximal openings, distal tips, distal openings, inside bores, and said distal tips spaced apart by gaps; (d) said plurality of needles possess a first needle and a second needle; (e) a shape memory needle longitudinally and slidably housed in said first needle, said shape memory needle having an inside bore, a proximal opening, a distal opening, a distal tip, a hook substantially near said distal opening, and a suture threading means connected to said proximal opening; (f) an operating means to slide said shape memory needle along said first needle; (g) said shape memory needle having a retracted position, wherein said hook is substantially housed in said first needle; (h) said shape memory needle having a deployed position, wherein said distal opening of said hook is substantially inserted into said distal opening of said second needle; and (i) a suture passing from said suture threading means, into said proximal opening and out of said distal opening of said shape memory needle; then into said distal opening of said second needle and exiting through said proximal opening of said second needle.
Claim 2
Dependent Claim
246 words
A suture device comprising: (a) a body having a proximal end, a distal end, and plurality of holes in substantially parallel alignment running from said proximal end to said distal end; (b) a handle located substantially near said proximal end of said body; (c) a plurality of needles fixed longitudinally through said plurality of holes and extending out of said body, said plurality of needles having proximal openings, distal tips, distal openings, inside bores, and said distal tips spaced apart by gaps; (d) said plurality of needles possess a first needle and a second needle; (e) a shape memory needle longitudinally and slidably housed in said first needle, said shape memory needle having an inside bore, a proximal opening, a distal opening, a distal tip, a hook substantially near said distal opening, and a suture threading means connected to said proximal opening; (f) an operating means to slide said shape memory needle along said first needle; (g) said shape memory needle having a retracted position, wherein said hook is substantially housed in said first needle; (h) said shape memory needle having a deployed position, wherein said distal opening of said hook is substantially inserted into said distal opening of said second needle; and (i) a suture passing from said suture threading means, into said proximal opening and out of said distal opening of said shape memory needle; then into said distal opening of said second needle and exiting through said proximal opening of said second needle.
Claim 3
Dependent Claim
13 words
A suture device as recited in claim 1, wherein said body is curved.
Claim 4
Dependent Claim
45 words
A suture device as recited in claim 1, wherein said first needle further comprising: (a) a strain, stress relief window fitting to said hook; (b) a gliding slot opened to said distal opening; (c) a trough carved from said inside bore; and (d) penetration markers.
Claim 5
Dependent Claim
26 words
A suture device as recited in claim 3, wherein said strain, stress relief window opens from said inside bore to outside wall of said first needle.
Claim 6
Dependent Claim
29 words
A suture device as recited in claim 3, wherein said strain, stress relief window opens from said inside bore but does not penetrate outside wall of said first needle.
Claim 7
Dependent Claim
45 words
A suture device as recited in claim 1, wherein said second needle further comprising: (a) a receiving slot opened to said distal opening of said second needle; (b) said proximal opening opened to outside of said proximal end of said body; and (c) penetration markers.
Claim 8
Dependent Claim
36 words
A suture device as recited in claim 1, wherein said shape memory needle further comprising: (a) a sharp distal tip and a proximal beveled opening; and (b) said hook located substantially near said sharp distal tip.
Claim 9
Dependent Claim
40 words
A suture device as recited in claim 7, wherein said shape memory needle is comprised of any material having the characteristics of being shapable under a non-operating condition and resiliently retaining the shape after substantially straightened in an operating condition.
Claim 10
Dependent Claim
16 words
A suture device as recited in claim 1, wherein said suture threading means is a funnel.
Claim 11
Dependent Claim
15 words
A suture device as recited in claim 1, wherein said operating means is a lever.
Claim 12
Dependent Claim
18 words
A suture device as recited in claim 1, wherein said suture further comprises a flexible and pushable filament.
Claim 13
Dependent Claim
15 words
A suture device as recited in claim 1, wherein said suture further comprises a substance.
Claim 14
Dependent Claim
14 words
A suture device as recited in claim 1, wherein said suture is a wire.
Claim 15
Dependent Claim
14 words
A suture device as recited in claim 1, wherein said suture is a cable.
Claim 16
Dependent Claim
15 words
A suture device as recited in claim 1, wherein said plurality of needles are curved.
Claim 17
Dependent Claim
20 words
A suture device as recited in claim 1, wherein said plurality of entries and outlets are equipment inlets and outlets.
Claim 18
Dependent Claim
246 words
A method of endoscopically suturing tissue using said suture device as recited in claim 1 comprises the steps of: (a) placing a cannula substantially close to a site of surgical operation; (b) setting said shape memory needle in said retracted position; (c) inserting an endoscope into an equipment inlet and extending out an equipment outlet; (d) inserting said suture device with said endoscope into said cannula; (e) guiding by said endoscope, piercing tissue to be sutured with at least one, preferring both said first and second needles; (f) threading said suture through said suture threading means into said proximal opening of said shape memory needle; (g) passing said suture longitudinally along said inside bore to said distal opening of said shape memory needle; (h) deploying said hook of said shape memory needle into a receiving slot of said second needle; (i) continue passing said suture through said receiving slot into said inner bore of second needle; (j) retrieving said suture from said proximal opening of said second needle outside said suture device; (k) retracting said hook, leaving said suture between said distal openings of said first needle and said second needle; (l) withdrawing said endoscope from said equipment inlet; (m) withdrawing said suture device from said site of surgical operation, leaving said suture in said tissue; (n) tying and delivering slip knot to said tissue; (o) cutting off excess suture; and (p) repeating all of the steps a plurality of times until said tissue is fastened.
Claim 19
Dependent Claim
247 words
A method of endoscopically suturing tissue using said suture device as recited in claim 1 comprises the steps of: (a) placing a cannula substantially close to a site of surgical operation; (b) setting said shape memory needle in said retracted position; (c) inserting an endoscope into an equipment inlet and extending out an equipment outlet; (d) inserting said suture device with said endoscope into said cannula; (e) guiding by said endoscope, piercing tissue to be sutured with at least one, preferring both said first and second needles; (f) deploying said hook of said shape memory needle into a receiving slot of said second needle; (g) retrieving said endoscope from said equipment inlet; (h) threading said suture through said suture threading means into said proximal opening of said shape memory needle; (i) passing said suture longitudinally along said inside bore of said shape memory needle into a receiving slot of said second needle, and continue passing said suture along said inside bore of said second needle; (j) retrieving said suture from said proximal opening of said second needle outside said suture device; (k) retracting said hook, leaving said suture between said distal openings of said first needle and said second needle; (l) withdrawing said suture device from said site of surgical operation, leaving said suture in said tissue; (m) tying and delivering slip knot to said tissue; (n) cutting off excess suture; and (o) repeating all of the steps a plurality of times until said tissue is fastened.
Claim 20
Dependent Claim
27 words
A method of endoscopically suturing tissue in claim 18 and claim 17, wherein said shape memory needle is deployed outside said tissue, a full-thickness suturing is formed.
Claim 21
Dependent Claim
27 words
A method of endoscopically suturing tissue in claim 17 and claim 18, wherein said shape memory needle is deployed within said tissue, a partial-thickness suturing is formed.
Claim 22
Dependent Claim
22 words
A method of endoscopically suturing tissue in claim 18 and claim 17, wherein said suture further comprises a flexible and pushable filament.
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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) | 2002-04-19 | 2002-10-19 | 2003-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-19 | 2006-10-19 | 2007-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-19 | 2010-10-19 | 2011-04-20 | $7700.00 | Window Closed / Lapsed |