US5167659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood coagulating apparatus
Assignee: Hitachi Ltd
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Filing: 1991-05-13
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Granted: 1992-12-01
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Expires: 2011-05-13
Abstract
Abstract A blood coagulating apparatus for stopping bleeding by heating the bleeding portion of the living body while producing an electric discharge on the bleeding portion. A patient plate which is capable of maintaining the state of being electrically connected to the living body is placed on the living body. An active electrode including an electrolyte ejector is brought to the vicinity of the bleeding portion. The electrolyte ejector includes an ejector for supplying an electrolyte to an air passage for passing air therethrough at a high speed so as to mix the electrolyte with air and ejecting the atomized electrolyte to the bleeding portion. The electric discharge produced in the vicinity of the bleeding portion by applying a high-frequency voltage between the active electrode and the patient plate is made stable and effective by ejecting the atomized electrolyte toward the bleeding portion. Thus, a uniform coagulation spot is formed and stable hemostatis is enabled.
Inventors
- 👤 Naoki Ohtomo
- 👤 Shizuo Ninomiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:12
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/1206; A61B18/14; A61B18/1402; A61M; A61M3/00; A61M3/02; A61M3/0233; A61M3/0254; A61M3/0258; A61B17/00; A61B17/32; A61B17/3203; A61B2018/00636; A61B2018/0066; A61B2018/0091; A61B2018/00916; A61B2018/00958; A61B2018/1246; A61B2018/1253; A61B2018/1472; A61B2218/00; A61B2218/001; A61B2218/002; A61B2218/003; A61M11/00; A61M11/06; A61M3/0202; A61M3/0279
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
109 words
A blood coagulating apparatus for stopping bleeding by heating the bleeding portion of the living body by discharge produced in the vicinity of said bleeding portion, said blood coagulating apparatus comprising: (a) a counter electrode plate which is capable of maintaining the state of being electrically connected to the living body; (b) an active electrode adapted to be introduced to the vicinity of said bleeding portion of the living body and including an electrolyte ejecting means for ejecting an atomized electrolyte toward said bleeding portion of the living body; and (c) a power source means for applying a high-frequency voltage between said counter electrode plate and said active electrode.
Claim 2
Dependent Claim
109 words
A blood coagulating apparatus for stopping bleeding by heating the bleeding portion of the living body by discharge produced in the vicinity of said bleeding portion, said blood coagulating apparatus comprising: (a) a counter electrode plate which is capable of maintaining the state of being electrically connected to the living body; (b) an active electrode adapted to be introduced to the vicinity of said bleeding portion of the living body and including an electrolyte ejecting means for ejecting an atomized electrolyte toward said bleeding portion of the living body; and (c) a power source means for applying a high-frequency voltage between said counter electrode plate and said active electrode.
Claim 3
Dependent Claim
68 words
A blood coagulating apparatus according to claim 1, wherein said electrolyte ejecting means of said active electrode is composed of an ejector including an air passage for passing air therethrough at a high speed and a liquid passage for supplying said electrolyte to said air passage, said ejector atomizing said electrolyte while mixing air therewith and ejecting the atomized electrolyte toward said bleeding portion of the living body.
Claim 4
Dependent Claim
44 words
A blood coagulating apparatus according to claim 2, further comprising: a current sensor means for detecting the current applied to said active electrode; and an electrolyte supplying means for supplying said electrolyte on the basis of a signal output from said current sensor means.
Claim 5
Dependent Claim
45 words
A blood coagulating apparatus according to claim 3, further comprising a means for varying an intensity of the blood coagulating operation on the living body by varying an impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate.
Claim 6
Dependent Claim
36 words
A blood coagulating apparatus according to claim 4, wherein the impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate is sequentially varied by said coagulation intensity variation means.
Claim 7
Dependent Claim
47 words
A blood coagulating apparatus according to claim 5, wherein said electrolyte injecting means further includes an electrolyte preliminarily supplying means for preliminarily supplying said electrolyte to said liquid passage through which said electrolyte is supplied to said air passage for passing air therethrough at a high speed.
Claim 8
Dependent Claim
47 words
A blood coagulating apparatus according to claim 4, wherein said electrolyte injecting means further includes an electrolyte preliminarily supplying means for preliminarily supplying said electrolyte to said liquid passage through which said electrolyte is supplied to said air passage for passing air therethrough at a high speed.
Claim 9
Dependent Claim
47 words
A blood coagulating apparatus according to claim 3, wherein said electrolyte injecting means further includes an electrolyte preliminarily supplying means for preliminarily supplying said electrolyte to said liquid passage through which said electrolyte is supplied to said air passage for passing air therethrough at a high speed.
Claim 10
Dependent Claim
45 words
A blood coagulating apparatus according to claim 2, further comprising a means for varying an intensity of the blood coagulating operation on the living body by varying an impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate.
Claim 11
Dependent Claim
36 words
A blood coagulating apparatus according to claim 9, wherein the impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate is sequentially varied by said coagulation intensity variation means.
Claim 12
Dependent Claim
47 words
A blood coagulating apparatus according to claim 10, wherein said electrolyte injecting means further includes an electrolyte preliminarily supplying means for preliminarily supplying said electrolyte to said liquid passage through which said electrolyte is supplied to said air passage for passing air therethrough at a high speed.
Claim 13
Dependent Claim
47 words
A blood coagulating apparatus according to claim 9, wherein said electrolyte injecting means further includes an electrolyte preliminarily supplying means for preliminarily supplying said electrolyte to said liquid passage through which said electrolyte is supplied to said air passage for passing air therethrough at a high speed.
Claim 14
Dependent Claim
47 words
A blood coagulating apparatus according to claim 2, wherein said electrolyte injecting means further includes an electrolyte preliminarily supplying means for preliminarily supplying said electrolyte to said liquid passage through which said electrolyte is supplied to said air passage for passing air therethrough at a high speed.
Claim 15
Dependent Claim
44 words
A blood coagulating apparatus according to claim 1, further comprising: a current sensor means for detecting the current applied to said active electrode; and an electrolyte supplying means for supplying said electrolyte on the basis of a signal output from said current sensor means.
Claim 16
Dependent Claim
45 words
A blood coagulating apparatus according to claim 14, further comprising a means for varying an intensity of the blood coagulating operation on the living body by varying an impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate.
Claim 17
Dependent Claim
36 words
A blood coagulating apparatus according to claim 15, wherein the impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate is sequentially varied by said coagulation intensity variation means.
Claim 18
Dependent Claim
45 words
A blood coagulating apparatus according to claim 1, further comprising a means for varying an intensity of the blood coagulating operation on the living body by varying an impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate.
Claim 19
Dependent Claim
36 words
A blood coagulating apparatus according to claim 17, wherein the impedance of said high-frequency voltage which is applied between said active electrode and said counter electrode plate is sequentially varied by said coagulation intensity variation means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-01 | 1996-06-01 | 1996-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-01 | 2000-06-01 | 2000-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-01 | 2004-06-01 | 2004-12-01 | $7700.00 | Window Closed / Lapsed |