EP0180214A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus and method for removing tissue mass from an organism
Assignee: United Sonics Inc
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Filing: 1985-10-30
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Granted: —
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Expires: 2005-10-30
Abstract
Abstract An apparatus and method useful for the removal of a mass of tissue from an animal which includes an elongated instrument, such as a needle, with a sheath device having a sleeve for treatment fluid delivery at the area of operation. The needle can be vibrated at ultrasonic frequency, preferably in the lateral direction, and treatment fluid, along with reduced pieces of tissue mass, can be removed from the area of treatment by means of aspiration through a conduit in the needle.
Inventors
- 👤 Joseph D. Spinosa
- 👤 Dominic J. Spinosa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 03:48
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00736; A61F9/00745; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B2017/320084
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
157 words
A sheath device for use with an elongated instrument having an operative end and a fluid supply comprising; sleeve means having a length sufficient to extend substantially the length of said elongated instrument and a wall having a transverse cross-section with an inside perimeter greater than the outside perimeter of the transverse cross-section of said instrument whereby fluid introduced to said sleeve means passes between said instrument and said sleeve means, fluid delivery/withdrawal means connected for fluid communication with said sleeve means, said fluid delivery/withdrawal means having an external port for introducing and withdrawing fluid, and sealing means which fits cooperatively with said elongated instrument to prevent passage of fluid from the non-operative end of said instrument, whereby said sheath is capable of being sealingly fitted to said instrument and whereby treatment fluid continuously supplied to said sheath device is maintained at said operative end of said elongated instrument substantially in the absence of interruption in flow.
Claim 2
Dependent Claim
157 words
A sheath device for use with an elongated instrument having an operative end and a fluid supply comprising; sleeve means having a length sufficient to extend substantially the length of said elongated instrument and a wall having a transverse cross-section with an inside perimeter greater than the outside perimeter of the transverse cross-section of said instrument whereby fluid introduced to said sleeve means passes between said instrument and said sleeve means, fluid delivery/withdrawal means connected for fluid communication with said sleeve means, said fluid delivery/withdrawal means having an external port for introducing and withdrawing fluid, and sealing means which fits cooperatively with said elongated instrument to prevent passage of fluid from the non-operative end of said instrument, whereby said sheath is capable of being sealingly fitted to said instrument and whereby treatment fluid continuously supplied to said sheath device is maintained at said operative end of said elongated instrument substantially in the absence of interruption in flow.
Claim 3
Dependent Claim
36 words
The device of Claim 1 wherein said elongated instrument is vibrated laterally in operation at ultrasonic range of from about 5,000 to about 50,000 cycles per second so that said operative end makes an elliptical pattern.
Claim 4
Dependent Claim
22 words
The device of Claim 1 or 2 wherein said instrument is a titanium needle for removing unwanted tissue material from an animal.
Claim 5
Dependent Claim
23 words
The device of Claim 1 wherein said sleeve means has a wall thickness of from about . 0 01 to about .009 inches.
Claim 6
Dependent Claim
36 words
The device of Claim 1 wherein said sleeve means has a transverse cross-section with an interior perimeter from about .002 to about .016 inches greater than the exterior perimeter of the transverse cross-section of said instrument.
Claim 7
Dependent Claim
41 words
The device of Claim 1 or 5wherein the wall of said sleeve has a circular transverse cross-section with an inside diameter of from about .048 to about .068 inches and an outside diameter of from about .060 to about .080 inches.
Claim 8
Dependent Claim
48 words
7 . The device of Claim 1 wherein said sleeve means comprises at least one opening through the wall of said sleeve at a position proximal the operative end of said instrument whereby fluid provided through said tube means is diffused as it passes out said sleeve means.
Claim 9
Dependent Claim
42 words
The device of Claim 1 or 5 wherein said sleeve means further comprises at least one reinforcement rib means extending longitudinally along the wall of said sleeve means whereby said wall is prevented from longitudinal collapse in the presence of compressive force.
Claim 10
Dependent Claim
56 words
The device of Claim 1 wherein said sheath means further comprises fluid reservoir means having a dimension sufficient to hold a volume of fluid at least equal to the volume of fluid held between said instrument and said sleeve means whereby a supply of fluid provided by gravity flow is continuously maintained through said sleeve means.
Claim 11
Dependent Claim
32 words
The device of Claim 9 wherein said reservoir means comprises an extension'of said sleeve means having at least one enlarged transverse cross-section and a length sufficient to hold said volume of fluid.
Claim 12
Dependent Claim
63 words
1L The device of Claim 1 wherein said fluid delivery/withdrawal means comprises body means at the nonoperative end of said sleeve means, said body means having a fluid delivery/ withdrawal bore which extends from said external port and is in fluid communication with one of said sleeve means and said reservoir, and attachment means at said external port for connecting fluid passage tube.
Claim 13
Dependent Claim
48 words
The device of Claim 11 wherein the angle at which said bore meets one of said sleeve means and said reservoir is from about 45° to about 90°, and wherein said bore has a circular transverse cross-section having a diameter of from about .054 to about .062 inches.
Claim 14
Dependent Claim
34 words
The device of Claim 12 wherein said attachment means comprises an enlargement in the cross-section dimension of said bore having a cross-section dimension and shape so that a fluid passage tube is inserted therein.
Claim 15
Dependent Claim
38 words
The device of Claim 1 wherein said sealing means comprises an extension of said sleeve means at the non-operative end of said sleeve, said extension having an annular seal which provides said cooperative fit with said elongated instrument.
Claim 16
Dependent Claim
37 words
The device of Claim 10 wherein said sealing means comprises a continuation of said extension of said reservoir means at the non-operative end, said continuation of said extension having an annular seal which provides said cooperative fit.
Claim 17
Dependent Claim
45 words
The device of Claim 14 wherein said annular seal is a continuous annular ring protruding from the interior surface of the wall of said extension, said ring having a dimension which sealingly fits in an annular groove provided on the nonoperative end of said instrument.
Claim 18
Dependent Claim
69 words
17 . The device of Claim 16 wherein said annular ring has a dome-shaped cross-section having a width of from about .0 07 to about .025 inches and a cross-sectional height from said interior surface of from about .010 to about .030 inches, and said groove has a cross-sectional width of from about .006 to about .030 inches and a depth of from about .006 to about .030 inches.
Claim 19
Dependent Claim
62 words
The device of Claim 17 wherein the diameter of the circle defined by the inner circumference of the interior surface of said annular ring is from about .070 to about .130 inches and the diameter of the circle defined by the bottom of said groove is from about .040 to about .120 inches whereby said ring is sealingly secured in said groove.
Claim 20
Dependent Claim
41 words
The device of Claim 14 wherein said annular seal is a continuous annular groove on the interior surface of said extension, said groove having a dimension which sealingly fits over an annular ring provided on the non-operative end of said instrument.
Claim 21
Dependent Claim
67 words
The device of Claim 19 wherein said annular ring has a dome-shaped cross-section having a width of from about .007 to about .025 inches and a cross-sectional height from said instrument surface of from about .010 to about .030 inches, and said groove has a cross-sectional width of from about .006 to about .030 inches and a cross-sectional depth of from about .006 to about .030 inches.
Claim 22
Dependent Claim
61 words
The device of Claim 20 wherein the diameter of the circle defined by the bottom of said groove is from about .070 to about .130 inches, and the diameter of the circle defined by the surface of the outer circumference of said annular ring is from about .040 to about .120 inches whereby said groove is sealingly secured over said ring.
Claim 23
Dependent Claim
12 words
The device of Claim 1 which is made of synthetic polymeric material.
Claim 24
Dependent Claim
110 words
A needle for use as a vibratory instrument comprising: elongated barrel means having an operative end and a nonoperative end, said barrel means provided with a conduit extending the length thereof with an inlet port at the operative end, base means provided at the nonoperative end of said barrel means, said base means having a connecting conduit therethrough which is in fluid communication with said barrel conduit and has an outlet port at the nonoperative end of said base means, said base means further comprising connecting means for connecting said needle to a source of vibratory motion, and sealing means for sealingly mounting a fluid sheath means on said needle.
Claim 25
Dependent Claim
110 words
A needle for use as a vibratory instrument comprising: elongated barrel means having an operative end and a nonoperative end, said barrel means provided with a conduit extending the length thereof with an inlet port at the operative end, base means provided at the nonoperative end of said barrel means, said base means having a connecting conduit therethrough which is in fluid communication with said barrel conduit and has an outlet port at the nonoperative end of said base means, said base means further comprising connecting means for connecting said needle to a source of vibratory motion, and sealing means for sealingly mounting a fluid sheath means on said needle.
Claim 26
Dependent Claim
47 words
The needle of Claim 23 wherein said barrel has a circular transverse cross-section having an exterior circumference with a diameter of from about .031 to about .044 inches and said conduit has a circular transverse cross-section with a diameter of from about .024 to about .042 inches.
Claim 27
Dependent Claim
29 words
The needle of Claim 23 wherein said operative end of said barrel is beveled and said inlet port comprises the opening formed in the beveled end by said conduit.
Claim 28
Dependent Claim
42 words
The needle of Claim 23 wherein said barrel has an end wall on the operative end by which said conduit is closed, and said inlet port is provided by an opening in the side of said barrel proximal to said end wall.
Claim 29
Dependent Claim
23 words
27 . The needle of Claim 26 wherein said inlet port is an orifice between about 0.20 and about 0.70 mm in diameter.
Claim 30
Dependent Claim
32 words
28 . The needle of Claim 26 wherein the distance between the outer surface of said end wall and the center line of said orifice is not more than about .035 inches.
Claim 31
Dependent Claim
37 words
2 9. The needle of Claim 23 wherein said barrel has an end wall on the operative end by which said conduit is closed, and said inlet port is provided by an opening in said end wall.
Claim 32
Dependent Claim
21 words
The needle of Claim 29 wherein said inlet port is an orifice between about 0.20 and about 0.70 mm in diameter.
Claim 33
Dependent Claim
22 words
The,needle of Claim 23 wherein said connecting means comprises a threaded portion for screwing said base into said source of vibratory motion.
Claim 34
Dependent Claim
53 words
The needle of Claim 31 wherein said barrel further comprises means for rotating said needle whereby said threaded base is screwed into said source of vibratory motion and wherein said means for rotating comprises flattened areas on the outer circumferential surface of said barrel whereby rotating force can be applied to said needle.
Claim 35
Dependent Claim
22 words
33 . The needle of Claim 23 wherein said outlet port comprises an enlarged cross-sectional conduit for attachment to an aspiration source.
Claim 36
Dependent Claim
36 words
The needle of Claim 23 wherein said sealing means comprises an annular ring extending from the surface of said base for sealing fit into an annular groove provided on the interior surface of said sheath means.
Claim 37
Dependent Claim
33 words
35 . The needle of Claim 23 wherein said scaling means comprises an annular groove in said base for receipt of an annular ring provided on the interior surface of said sheath means.
References Cited (Backward Citations)
No citation records indexed.
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