WO2001078610A1 - Omni-actuatable hand-held surgical instruments - Google Patents
Omni-actuatable hand-held surgical instruments Download PDFInfo
- Publication number
- WO2001078610A1 WO2001078610A1 PCT/US2001/011594 US0111594W WO0178610A1 WO 2001078610 A1 WO2001078610 A1 WO 2001078610A1 US 0111594 W US0111594 W US 0111594W WO 0178610 A1 WO0178610 A1 WO 0178610A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuator
- instrument
- ring
- band
- pin
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B17/2909—Handles
- A61B2017/2912—Handles transmission of forces to actuating rod or piston
- A61B2017/2918—Handles transmission of forces to actuating rod or piston flexible handles
Definitions
- the present invention relates generally to hand-held instruments and tools.
- the present invention relates to hand-held surgical instruments, especially those usefully employed for ophthalmic surgical procedures.
- Ophthalmic surgical procedures require the use of miniaturized instruments such as, for example, forceps, scissors and the like in order to allow the surgeon to operate on and within a patient's eye.
- One well known instrument that is used for such ophthalmic surgical procedures is the so-called Sutherland-type instrument commercially available from Grieshaber & Co., Inc.
- the Sutherland-type instrument has a pen-like handle and uses a lever as an actuator for actuating mechanically operable spring-loaded tools, such as forceps, scissors, knives and the like which are threaded or otherwise operably connected to the distal end of the handle.
- the present invention is directed to further improvements in surgical instruments of the Sutherland-type.
- the present invention broadly is directed to handheld instruments which may be employed to actuate a distally mounted tool by application of radial force about the instrument circumference (i.e., omni-actuatable).
- the present invention is embodied in hand-held instruments having a handle which includes an actuator assembly for actuating a tool, wherein the actuator assembly has a generally V-shaped circumferential channel in which an actuator band is seated.
- a slide ring assembly is provided which defines the generally V-shaped circumferential channel and has at least one slide ring mounted for longitudinal movements relative to the handle.
- the actuator band is radially flexible.
- the actuator band seated within the generally V-shaped channel will be flexed radially inwardly to thereby move the slide ring longitudinally.
- the slide ring in turn, coacts operatively with the distally mounted tool (e.g., through a longitudinally slidable actuator pin). Radial motion of the actuator band is thereby translated into longitudinal motion of the slide ring, which longitudinal motion is then employed to actuate the tool.
- FIGURE 1 is a perspective view of one embodiment of a hand-held surgical instrument according to the present invention.
- FIGURE 2 is an enlarged cross-sectional view of the actuator assembly employed in the surgical instrument of the present invention
- FIGURE 3 is an enlarged perspective view, partly in section, of the actuator assembly depicted in FIGURE 2;
- FIGURES 4A and 4B are each longitudinal cross-sectional elevational views showing the operation of the surgical instrument in accordance with the present invention.
- FIGURE 5 is an enlarged perspective view, partly in section, of another embodiment of an actuator assembly that may be employed in the surgical instruments of the present invention.
- FIGURE 1 depicts one exemplary embodiment of a hand-held surgical instrument 10 according to the present invention.
- the surgical instrument 10 includes an elongated handle 12 sized and configured to allow the instrument 10 to be handled manually by a surgeon during surgical procedures.
- the handle 12 includes a manually operated actuator assembly 14 which serves to actuate a tool 16 operatively attached to, and extending from, the distal end of the handle.
- the tool 16 for example, may be a miniature forceps 16-1 positioned at the distal-most end thereof which open and close in response to actuation of the actuator assembly 16 in a manner that will be described in greater detail below.
- the component parts of the actuator assembly 14 are covered by a resilient elastomeric boot 14-1.
- the distal end of the handle 12 is provided with a cylindrical recess 12-1 which is adapted to receive a conformably shaped proximal end 18-1 of the core housing 18.
- the proximal end 18-1 is provided with an internally threaded bore comprised of a coaxially aligned series of opposite-hand thread sections 18-2, 18-3.
- the distal thread section 18-2 threadably receives the threaded proximal end 20-1 of the cylindrical core member 20.
- the proximal thread section 18-3 receives a set screw 18-4 which positionally locks the core member 20 relative to the core housing 18.
- the core housing 18, in turn, is positionally locked within the recess 12-1 , and hence to the handle 12, via set screw 18-5.
- the distal end of the core housing 18 integrally includes a fixed-position annular actuation flange 18-6 whose forward face defines a ramp surface R1.
- a pair of slide rings 22, 24 are sleeved over the cylindrical outer surface of the core member 20 so as to be capable of slidable reciprocal rectilinear movements along the elongate axis (A x in FIGURE 2) of the instrument 10.
- the ramp member 22 defines a pair of ramp surfaces R2, R3 while the ramp member 24 defines a ramp surface R4.
- the ramp surfaces R1 and R2 oppose one another while the ramp surfaces R3 and R4 are in opposition to one another.
- each of the opposed ramp surface pairs R1 , R2 and R3, R4 respectively define a generally V-shaped channel which receives an endless, radially flexible actuator band 30, 32.
- each of the ramp surfaces R1-R4 is most preferably non-linear. That is, each of the ramp surfaces R1-R4 is most preferably a convexly arcuate surface of a radius which is sized to intersect the hypotenuse of a right triangle whose base aligned with the axis A x has the distance needed for reciprocal displacement ("throw") to operate the tool 14.
- the non-linear ramp surfaces R1-R4 thus create tangential surface-to-surface contact with the external cross-sectionally circular surfaces of the actuating bands 30, 32.
- This tangential contact between the ramp surfaces R1 -R4 and the actuating bands allows for a smooth transition from the initial break-away activation force (i.e., the minimum radial force needed to be exerted on the actuating bands 30, 32 which causes responsive axial movement of the slide rings 30, 32).
- the initial brake-away activation force i.e., the minimum radial force needed to be exerted on the actuating bands 30, 32 which causes responsive axial movement of the slide rings 30, 32.
- the tangential contact between the actuating bands and the ramp surfaces R1-R4 allows for an ever decreasing force requirement to be exerted in order to achieve axial movements of the slide rings 30, 32.
- the non-linear ramp surfaces R1-R4 ensure that the manual actuation force which is exerted against the bands 30, 32 decreases as the maximum throw or axial displacement of the tool 16 is approached.
- the ramp surfaces R1-R4 and the actuating bands 30, 32 should be formed of materials which minimize frictional resistance, for example, polished stainless steel.
- the external surfaces of the bands 30, 32 may also coated with a low-friction material (e.g., PTFE). If desired, however, the ramp sur aces R1-R4 could be linear, in which case, the decrease in actuation force noted above would not be an important design feature for the particular instrument in which such surfaces were embodied.
- the core member 20 defines a lengthwise slot 20-2 in which an actuator pin 40 is positioned.
- the actuator pin 40 includes a pair of diametrically opposed, outwardly projecting tabs 40-1 which are seated within the annular recess 24-1 defined in the moveable ramp member 24 (see FIGURE 2).
- An actuation tip 40-2 projects distally from the pin 40 so as to coact with the actuation mechanism (not shown) associated with the tool 16.
- the distal end 20-3 of the core member 20 is threaded so as to allow the actuation mechanism 16-2 of the tool 16 to be removably threadably attached thereto.
- the actuation mechanism 16-2 of the tool 16 will therefore operatively present itself to the tip 40-2 of pin 40 to allow actuation in response to operation of the actuation assembly 14.
- the actuation mechanism 16-2 of the tool 16 will include a bias spring (not shown) that forces the pin 40 to its inactive, proximal position within the slot 20-2 of core member 20. Such a state is shown in FIGURE 4A.
- a compressive force (arrows A r in FIGURE 4A) is manually applied against the actuator bands 30, 32 through the boot 14-1 of actuator assembly 14.
- the actuator bands 30, 32 are thus flexibly radially depressed within the generally V-shaped channels defined between the opposing ramp surfaces R1 , R2 and R3, R4, respectively, thereby slidably driving the ramp members 22, 24 in a distal direction along the longitudinal axis A x of the instrument 10 (i.e., in the direction of arrow A ⁇ in FIGURE 4B).
- the ramp member 24 in turn pushes against the tabs 40-1 of the actuator pin 40 thereby responsively causing the actuator tip 40-2 to be displaced longitudinally between its retracted position shown in FIGURE 4A and into its extended position shown in FIGURE 4B.
- the distance which the actuator tip 40-2 moves between such retracted and extended positions is the "throw" needed to operate the tool 16. That is, as explained previously, the tool 16 is, in and of itself conventional and includes a spring biased activation mechanism 16-2 which is engaged by the tip 40-2 to thereby, in turn, activate the tool 16.
- the miniature forceps 16-1 are caused to close in response to the actuator bands 30, 32 being radially depressed.
- the actuator bands 30, 32 have been depicted as being in the form of endless torroidally wound tension springs.
- other forms of springs or radially -collapsible structures may be envisioned.
- elastomeric bands may be employed provided they are coated or otherwise have a relatively low friction surface in contact with the ramp surfaces R2-R4 for the reasons as previously noted.
- the actuator bands may be in the form of a circumferentially arranged series of spherical bearings (a few of which are identified in FIGURE 5 by reference numerals 50 and 52) which are seated respectively within the generally V-shaped channels defined between opposed ramp surfaces R1 , R2 and R3, R4.
- These bearings 50, 52 may be detached from one another as shown in FIGURE 5, or alternatively may be flexibly attached to one another as might be present in a ball chain or like structures.
- the circumferential arrangement of the spherical bearings 50, 52 allows for them to be radially depressed within the generally V-shaped channels defined between opposed ramp surfaces R1 , R2 and R3, R4 so as to activate the tool 14 carried at the distal end of the handle 12.
- a pair of slide rings 20, 22 has also been depicted with a corresponding pair of actuator bands as this represents a presently preferred form of the invention.
- more or fewer such slide rings and actuator bands may be provided without departing from the scope of the present invention.
- a single slide ring and a single actuator band is contemplated by the present invention.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0110042-4A BR0110042A (en) | 2000-04-14 | 2001-04-10 | Hand held instrument and combination |
CA002405506A CA2405506A1 (en) | 2000-04-14 | 2001-04-10 | Omni-actuatable hand-held surgical instruments |
EP01924881A EP1272111A4 (en) | 2000-04-14 | 2001-04-10 | Omni-actuatable hand-held surgical instruments |
JP2001575915A JP2003530193A (en) | 2000-04-14 | 2001-04-10 | All-drive handheld surgical instrument |
MXPA02010146A MXPA02010146A (en) | 2000-04-14 | 2001-04-10 | Omni actuatable hand held surgical instruments. |
AU2001251493A AU2001251493A1 (en) | 2000-04-14 | 2001-04-10 | Omni-actuatable hand-held surgical instruments |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/549,469 US6391046B1 (en) | 2000-04-14 | 2000-04-14 | Omni-actuatable hand-held surgical instruments |
US09/549,469 | 2000-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001078610A1 true WO2001078610A1 (en) | 2001-10-25 |
Family
ID=24193146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/011594 WO2001078610A1 (en) | 2000-04-14 | 2001-04-10 | Omni-actuatable hand-held surgical instruments |
Country Status (9)
Country | Link |
---|---|
US (1) | US6391046B1 (en) |
EP (1) | EP1272111A4 (en) |
JP (1) | JP2003530193A (en) |
AR (1) | AR031565A1 (en) |
AU (1) | AU2001251493A1 (en) |
BR (1) | BR0110042A (en) |
CA (1) | CA2405506A1 (en) |
MX (1) | MXPA02010146A (en) |
WO (1) | WO2001078610A1 (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
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US6616683B1 (en) | 2000-05-02 | 2003-09-09 | Duke University | Method of making miniaturized surgical forceps |
US6488695B1 (en) * | 2000-08-17 | 2002-12-03 | Alcon, Inc. | Ophthalmologic surgical probe |
US6482198B2 (en) * | 2001-04-19 | 2002-11-19 | Duke University | Hand-held surgical instruments with omni-circumferential actuation capabilities |
US6949110B2 (en) * | 2001-06-22 | 2005-09-27 | Microaire Surgical Instruments, Inc. | Connector assembly for a surgical tool |
WO2003094589A2 (en) * | 2002-05-06 | 2003-11-20 | Duke University | Omni-actuable hand-held surgical instruments |
JP2007514465A (en) * | 2003-11-13 | 2007-06-07 | シナージエテイクス・インコーポレイテツド | Surgical device handle with adjustable actuator position |
US20060161185A1 (en) * | 2005-01-14 | 2006-07-20 | Usgi Medical Inc. | Methods and apparatus for transmitting force to an end effector over an elongate member |
KR101332173B1 (en) | 2006-03-13 | 2013-11-25 | 미니랩 테크놀러지스 인코포레이티드 | Minimally invasive surgical assembly and methods |
US8133255B2 (en) * | 2006-03-13 | 2012-03-13 | Mini-Lap Technologies, Inc. | Minimally invasive surgical assembly and methods |
US9486238B2 (en) * | 2006-03-13 | 2016-11-08 | Teleflex Medical Incorporated | Minimally invasive surgical clamps, assemblies and methods |
US8313507B2 (en) * | 2006-03-13 | 2012-11-20 | Mini-Lap Technologies, Inc. | Minimally invasive rake retractor and method for using same |
US7766937B2 (en) | 2006-03-13 | 2010-08-03 | Mini-Lap Technologies, Inc. | Minimally invasive surgical assembly and methods |
US20070282170A1 (en) * | 2006-05-30 | 2007-12-06 | Sundaram Ravikumar | Rake Retractor and Needle Assembly for Minimally Invasive Surgical Applications |
US20080086166A1 (en) * | 2006-10-10 | 2008-04-10 | Sundaram Ravikumar | Minimally Invasive Surgical Assembly with Balloon Instrument |
US8956351B2 (en) | 2008-04-09 | 2015-02-17 | Teleflex Medical Incorporated | Minimally invasive surgical needle and cauterizing assembly and methods |
FR2948596B1 (en) * | 2009-07-31 | 2012-07-20 | Dexterite Surgical | MANIPULATOR HAND HELD AND SYMMETRIC PRETENSION |
US9326757B2 (en) * | 2009-12-31 | 2016-05-03 | Teleflex Medical Incorporated | Surgical instruments for laparoscopic aspiration and retraction |
US8579887B2 (en) | 2010-11-09 | 2013-11-12 | Synergetics Usa, Inc. | Axially reciprocating microsurgical instrument with radially compressed actuator handle |
US20120150216A1 (en) * | 2010-12-13 | 2012-06-14 | Hickingbotham Dyson W | Distally Actuated Surgical Instrument |
WO2012082736A1 (en) | 2010-12-13 | 2012-06-21 | I-Tech Development Company | Proximally actuated surgical instrument |
US9161769B2 (en) | 2012-07-30 | 2015-10-20 | Covidien Lp | Endoscopic instrument |
EP2932923B1 (en) * | 2012-12-13 | 2019-01-23 | Charmant Co., Ltd. | Medical instrument |
EP3860535A1 (en) * | 2018-12-12 | 2021-08-11 | Alcon Inc. | Actuation handle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US5634918A (en) * | 1994-10-26 | 1997-06-03 | Grieshaber & Co. Ag Schaffhausen | Ophthalmic surgical instrument |
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DE3201616A1 (en) | 1981-01-22 | 1982-11-25 | Duke University, 27706 Durham, N.C. | FOREIGN BODY PLIERS |
DE3526821A1 (en) * | 1985-07-26 | 1987-02-05 | Ewald Hensler | Gripping piece with an actuation device for a manually operated, surgical microinstrument |
US4760848A (en) | 1986-11-03 | 1988-08-02 | Hasson Harrith M | Rotational surgical instrument |
JPH0640874B2 (en) | 1989-04-07 | 1994-06-01 | ザ ユニバーシティー オブ メルボルン | Improvement of surgical instruments |
US5338317A (en) | 1991-05-03 | 1994-08-16 | Vance Products Incorporated | Rotational surgical instrument handle |
US5275607A (en) | 1991-09-23 | 1994-01-04 | Visionary Medical, Inc. | Intraocular surgical scissors |
US5211652A (en) | 1991-10-03 | 1993-05-18 | Bruce Derbyshire | Scalpel |
GB9502498D0 (en) * | 1995-02-09 | 1995-03-29 | Devlin Stuart L | Surgical instruments |
US5827291A (en) | 1996-11-05 | 1998-10-27 | Linvatec Corporation | Suture anchor driver with suture retainer |
US5830231A (en) | 1997-03-19 | 1998-11-03 | Geiges, Jr.; John J. | Handle and actuating mechanism for surgical instruments |
US5908426A (en) | 1997-04-24 | 1999-06-01 | Pierce; Javin | Suture needle manipulator |
US5984685A (en) | 1998-08-06 | 1999-11-16 | The Children's Mercy Hospital | Medical action system |
-
2000
- 2000-04-14 US US09/549,469 patent/US6391046B1/en not_active Expired - Fee Related
-
2001
- 2001-04-03 AR ARP010101582A patent/AR031565A1/en unknown
- 2001-04-10 AU AU2001251493A patent/AU2001251493A1/en not_active Abandoned
- 2001-04-10 MX MXPA02010146A patent/MXPA02010146A/en unknown
- 2001-04-10 CA CA002405506A patent/CA2405506A1/en not_active Abandoned
- 2001-04-10 JP JP2001575915A patent/JP2003530193A/en not_active Withdrawn
- 2001-04-10 EP EP01924881A patent/EP1272111A4/en not_active Withdrawn
- 2001-04-10 WO PCT/US2001/011594 patent/WO2001078610A1/en not_active Application Discontinuation
- 2001-04-10 BR BR0110042-4A patent/BR0110042A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5634918A (en) * | 1994-10-26 | 1997-06-03 | Grieshaber & Co. Ag Schaffhausen | Ophthalmic surgical instrument |
Also Published As
Publication number | Publication date |
---|---|
BR0110042A (en) | 2003-06-03 |
MXPA02010146A (en) | 2004-08-19 |
AU2001251493A1 (en) | 2001-10-30 |
AR031565A1 (en) | 2003-09-24 |
CA2405506A1 (en) | 2001-10-25 |
JP2003530193A (en) | 2003-10-14 |
EP1272111A4 (en) | 2004-10-06 |
EP1272111A1 (en) | 2003-01-08 |
US6391046B1 (en) | 2002-05-21 |
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