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WO2008144630A2 - Transmission de couple, blocage et libération de porte-instruments et procédés d'actionnement des porte-instruments - Google Patents

Transmission de couple, blocage et libération de porte-instruments et procédés d'actionnement des porte-instruments Download PDF

Info

Publication number
WO2008144630A2
WO2008144630A2 PCT/US2008/064084 US2008064084W WO2008144630A2 WO 2008144630 A2 WO2008144630 A2 WO 2008144630A2 US 2008064084 W US2008064084 W US 2008064084W WO 2008144630 A2 WO2008144630 A2 WO 2008144630A2
Authority
WO
WIPO (PCT)
Prior art keywords
instrument
actuator
instrument holder
operator
clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2008/064084
Other languages
English (en)
Other versions
WO2008144630A3 (fr
Inventor
Kevin Smith
Matthew Palmer
Derek Deville
Korey Kline
Carlos Rivera
Thomas Bales
Max Mendez
Michael Kirk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Syntheon LLC
Original Assignee
Syntheon LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/828,424 external-priority patent/US7959162B2/en
Priority claimed from US12/121,132 external-priority patent/US9707376B2/en
Application filed by Syntheon LLC filed Critical Syntheon LLC
Publication of WO2008144630A2 publication Critical patent/WO2008144630A2/fr
Publication of WO2008144630A3 publication Critical patent/WO2008144630A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00066—Proximal part of endoscope body, e.g. handles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements

Definitions

  • the invention relates to a torque-transmitting, locking instrument holder and to an optionally automatically releasing instrument holder.
  • the invention also relates to methods for operating the instrument holders.
  • Prior art devices and methods of this type have been complicated, making it difficult to torque and push an endoscope.
  • the prior art devices and methods have also required separate manipulations to engage and release the instrument and only engage it with a set, non-adjustable force.
  • the instrument holder comprises a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator.
  • a device is provided for locking the handle to and unlocking the handle from the instrument at least partly disposed within the hollow body.
  • the locking and unlocking device includes an actuator to be activated by the operator for locking the handle to and unlocking the handle from the instrument.
  • the actuator may be a bobbin to be slid by an operator.
  • the locking and unlocking device includes a clamping plate disposed within the actuator.
  • the clamping plate is moved radially inwardly against the instrument and radially outwardly away from the instrument by activating the actuator.
  • the clamping plate may include a plurality of partial-plates, at least one spring biasing the partial-plates radially outwardly and detents integral with the partial-plates.
  • the detents are disposed in recesses in the actuator in an unlocked condition and slide out of the recesses and push the partial-plates towards the instrument against a force of the at least one spring into a locked condition.
  • a body tube disposed partially within the handle and having a coupling end disposed within the actuator.
  • the coupling end has slots formed therein within which the detents slide between the locked and unlocked conditions.
  • stops limit motion of the actuator into the locked and unlocked conditions.
  • an optionally automatically releasing instrument holder comprising a grip to be held by an operator for guiding an instrument, an actuator to be activated by the operator, and a biasing device exerting a force.
  • a clamp is moved by the actuator toward the instrument against the force of the biasing device and is moved by the biasing device away from the instrument optionally upon releasing the actuator.
  • the biasing device may be a spring
  • the actuator may be a trigger being pivoted away from the grip by the spring and being pivoted toward the grip by the operator for engaging the instrument with the clamp.
  • the spring is biased between a nose and the cam. Therefore, a simple, easily operated, reliable and automatically releasing instrument holder is provided.
  • An important advantage of the instrument holder according to the invention is that the actuator and the biasing device allow infinite adjustment of contact between the clamp and the instrument by the operator.
  • the clamp includes a plurality of clamping shoes for surrounding the instrument.
  • a cam is moved by the trigger for displacing the clamping shoes toward the instrument and is moved by the spring for displacing the clamping shoes away from the instrument.
  • a cam ring is disposed within the cam.
  • Cam lock springs are each being disposed between a respective two of the clamping shoes.
  • the clamping shoes for example three in number, provide equalized force distribution against the instrument from all radial directions for secure gripping without damage to the instrument.
  • the cam has a cam surface on which ball bearings ride toward and away from the clamping shoes upon movement of the cam.
  • a clamp body has holes formed therein in which the ball bearings move toward and away from the clamping shoes.
  • the clamping shoes each have a protrusion being engaged by a respective one of the ball bearings. This feature provides infinite adjustment between clamped and released positions of the shoes, allowing the operator to chose and feel the force to be exerted.
  • a grip tube extended through the grip, one dowel pin on which the trigger pivots on the grip, and another dowel pin disposed between the clamp body and the grip tube, perpendicular to the one dowel.
  • Set screws are disposed between the clamp body and the grip tube. The dowel pins and the set screws allow balanced support for the moving and stationary parts of the instrument holder.
  • the method comprises guiding an instrument in a grip to be held by an operator, providing an actuator or trigger to be activated by the operator, exerting a force against activation of the actuator with a biasing device or spring, and providing a -A-
  • the actuator is activated by the operator to move the clamp toward the instrument against the force of the biasing device.
  • the clamp is moved away from the instrument with the biasing device optionally upon releasing the actuator.
  • Fig. 1 is a diagrammatic, side-elevational view of a torque-transmitting, locking instrument holder according to a first embodiment of the invention, approaching an unlocked condition;
  • Fig. 2 is a view similar to Fig. 1 of the instrument holder of the first embodiment in the unlocked condition;
  • Fig. 3 is a perspective view of the instrument holder of the first embodiment in the unlocked condition
  • Fig. 4 is another perspective view of the instrument holder of the first embodiment in the unlocked condition
  • Fig. 5 is an exploded, perspective view of the instrument holder of the first embodiment
  • Fig. 6 is a longitudinal-sectional view of the instrument holder of the first embodiment in the locked condition
  • Fig. 7 is a view similar to Fig. 6 of the instrument holder of the first embodiment in the condition shown in Fig. 1 ;
  • Fig. 8 is a view similar to Figs. 6 and 7 of the instrument holder of the first embodiment in the condition shown in Fig. 2;
  • Fig. 9 is a perspective view of the instrument holder of the first embodiment with a bobbin removed
  • Fig. 10 is a perspective view of the instrument holder of the first embodiment with a rear bushing removed
  • Fig. 11 is a perspective view of the instrument holder of the first embodiment with a coupler removed.
  • Fig. 12 is a diagrammatic, exploded perspective view of an instrument holder according to a second embodiment of the invention.
  • Fig. 13 is a side-elevational view of the instrument holder of the second embodiment with a trigger released in an unlocked condition;
  • Fig. 14 is a perspective view of the instrument holder of the second embodiment with the trigger released in the unlocked condition
  • Fig. 15 is a perspective view of the instrument holder of the second embodiment with the trigger depressed in the locked condition
  • Fig. 16 is a perspective view of the instrument holder of the second embodiment with the trigger released in the unlocked condition and a cam removed
  • Fig. 17 is a perspective view of the instrument holder of the second embodiment with the trigger released in the unlocked condition and with a nose removed;
  • Fig. 18 is a perspective view of the instrument holder of the second embodiment with the trigger released in the unlocked condition and with a spring and a cam ring removed;
  • Fig. 19 is another perspective view similar to Fig. 18;
  • Fig. 20 is a perspective view of the instrument holder of the second embodiment with the trigger released in the unlocked condition and with a clamp body removed;
  • Fig. 21 is a longitudinal-sectional view of the instrument holder of the second embodiment with the trigger released in the unlocked condition;
  • Fig. 22 is a longitudinal-sectional view of the instrument holder of the second embodiment with the trigger partly depressed in a partly locked condition
  • Fig. 23 is a longitudinal-sectional view of the instrument holder of the second embodiment with the trigger depressed in the locked condition
  • Fig. 24 is a fragmentary, perspective longitudinal-sectional view of the instrument holder of the second embodiment with the trigger depressed in the locked condition;
  • Fig. 25 is an enlarged, fragmentary, perspective view of the instrument holder of the second embodiment with the trigger depressed in the locked condition.
  • a torque-transmitting, locking instrument holder 1 having a proximal end 2 and a distal end 3.
  • the instrument holder 1 has a handle or grip 4 at the proximal end 2 and a rear bushing 5 at the distal end 3.
  • a bobbin 6 has been slid almost as far as possible toward the proximal end 2, into an unlocking position, which will be explained in greater detail below.
  • Figs. 3 and 4 similarly show perspective views of the instrument holder 1.
  • the instrument holder 1 is shown in greater detail in an exploded view in Fig. 5. Looking from the distal end 3 toward the proximal end 2, there is seen the rear bushing 5, a clamping plate 10 having clamping springs 11 , a bobbin ring 12, the bobbin 6 having a bobbin rib 7, a body tube 15 having a coupling end 16, a marker band 17 and the handle or grip 4.
  • the clamping plate 10 includes three partial-plates or partial-shells 13 each having a detent 14.
  • Figs. 6, 7 and 8 are longitudinal-sectional views in which the bobbin 6 is disposed in different positions.
  • the bobbin 6 is slid distally against a stop 18, in Fig. 7, the bobbin 6 is slid proximally toward a stop 19 and in Fig. 8, the bobbin 6 is slid close to the stop 19.
  • Figs. 6, 7 and 8 also show that an inner peripheral surface 21 of the bobbin 6 has a recess 22.
  • bobbin 6 has been omitted to show the coupling end 16 of the body tube 15 protruding from the handle or grip 4. It may also be seen that the detents 14 each protrude through a respective slot 20 in the coupling end 16.
  • FIG. 11 the coupling end 16 has also been omitted, so as to show the springs 11 mounted between the partial-plates 13 of the clamping plate 10.
  • An instrument 23 such as a colonoscope or an endoscope, which is diagrammatically shown in Fig. 6, is initially slid into a hollow body formed by the rear bushing 5, the bobbin 6, the body tube 15 and the handle or grip 4.
  • the instrument 23 is inserted into the hollow body with the instrument holder 1 in an unlocked condition shown in Fig. 8.
  • the bobbin 6 In the unlocked condition, the bobbin 6 is located proximally against the stop 19 and the springs 11 bias the partial-plates 13 radially outwardly.
  • the detents 14 therefore protrude through the slots 20 against the recess 22 of the inner peripheral surface 21 of the bobbin 6.
  • the instrument holder includes a grip tube 102 to be slid inside a grip 106 for manipulation by an operator.
  • a manual actuator in the form of a trigger 109 is to be hinged on the grip 106 by a dowel pin 115 passing through holes 108 in the trigger 109, only one of which is shown, and corresponding non-illustrated holes in the grip 106.
  • the trigger 109 also has arms 111 , 112 which pivot about the dowel pin 115.
  • an extension 103 of the grip tube 102 extends through the grip 106 and partly through a clamp body 120.
  • Two set screws 118 are each engaged in a respective threaded opening 114 in the clamp body 120.
  • Each set screw 118 engages a respective protrusion 107 on the extension 103, only one of which is shown.
  • a clamp in the form of three clamping shoes 122, 123, 124 are held within the clamp body 120 and are biased against one another by cam lock springs 126 which extend into blind bores 117 formed in pairs in the clamping shoes.
  • the clamping shoes 122, 123, 124 each have a protrusion 125 aligned with a respective hole 121 in the clamp body 120. Only one of the protrusions 125 and holes 121 are shown.
  • Ball bearings 119 are each to be placed in a respective one of the holes 121 for contacting a respective one of the protrusions 125.
  • Another dowel pin 116 passes through non-illustrated holes in the clamp body 120 and the extension 103, perpendicular to the dowel 115.
  • a cam 128, a cam ring 130 and a biasing device in the form of a spring 132 surround the clamp body 120.
  • a nose 134 is slipped over the spring 132 and the cam ring 130.
  • Figs. 13 and 14 illustrate the assembled instrument holder in respective elevational and perspective views, with the trigger 109 released and the nose 134 in an unlocked position, that is fully retracted towards the cam 128. In the perspective view of Fig.
  • FIG. 25 shows a particularly clear illustration of the arms 111 , 112 engaging the cam 128. It may be seen that the arms 111 , 112 have engagement surfaces 111 ', 112', different parts of which engage the cam 128 during the stroke of the trigger 109 between the depressed and released positions.
  • the spring 132 pushes the cam 128 and the arms 111 , 112 toward the left in Fig. 15, that is proximally, so that the trigger 109 is once again extended as in Figs. 13 and 14 and the ends of the arms 111 , 112 are seated against stops 110 on the grip 106, only one of which is shown in Fig. 25.
  • the cam 128 has been removed to more clearly show the clamp body 120.
  • the nose 134 has also been removed, to show the cam ring 130 and the spring 132 surrounding the clamp body 120.
  • the perspective views of Figs. 18 and 19 show portions of the clamping shoes 122, 124 and the cam lock springs 126 within the clamp body 120.
  • the clamp body 120 has been removed to show all three clamping shoes 122, 123, 124 and several of the cam lock springs 126 and protrusions 125.
  • Fig. 21 shows the trigger 109 released and therefore in the unlocked condition.
  • the dowel pin 115 interconnecting the trigger 109 and the grip 106 and the dowel pin 116 interconnecting the clamp body 120 and the extension 103, are seen as well.
  • the cam ring 130 is seen as being disposed within the distal end of the clamp body 120. It may also be seen that the grip tube 102 and the extension 103 have beads 104 engaged in corresponding recesses 105 in the grip 106.
  • Fig. 21 also illustrates an inner annular cam surface or ramp 129 of the cam 128.
  • Fig. 21 shows the spring 132 disposed in a cavity 135 within the nose 134. It may be seen that the spring 132 is biased between the nose 134 and the cam 128, so as to bias the cam to the left or proximally in Fig. 21.
  • the non- illustrated protrusions 125 on the clamping shoes 122, 123, 124 are each radially aligned with a respective one of the ball bearings 119.
  • the trigger 109 has been partly depressed, so that the arms 111 , 112 push the cam 128 distally, causing the cam surface 129 to engage the ball bearings 119 and push them radially inwardly in the holes 121 against the protrusions 125 on the clamping shoes 122, 123, 124.
  • the clamping shoes 122, 123, 124 are in turn pushed radially inwardly against the force of the springs 126 and toward an instrument 140, such as an endoscope or a colonoscope.
  • the instrument 140 protrudes from the proximal and distal ends of the instrument holder and passes through a hollow body formed by the grip tube 102, the clamp body 120, the clamping shoes 122, 123, 124 and the hollow nose 134.
  • Figs. 23 and 24 show the trigger fully depressed and therefore the clamping shoes 122, 123, 124 fully displaced radially inwardly against the instrument 140, due to the cam surface 129 being fully run up over the ball bearings 119.
  • the spring 132 would once again push the cam 128 proximally and the ball bearings 119 would roll along the cam surface 129 and be pushed radially outwardly again by the springs 126 and the clamping shoes 122, 123, 124, while releasing the instrument 140.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Manipulator (AREA)

Abstract

L'invention concerne un porte-instruments de transmission de couple, de blocage comprenant un corps creux ayant une extrémité proximale pour recevoir un instrument, une extrémité distale pour protubérance de l'instrument et une poignée à saisir par un opérateur. Un dispositif est proposé pour bloquer la poignée sur et débloquer la poignée depuis l'instrument au moins partiellement disposé dans le corps creux. Un deuxième mode de réalisation du porte-instruments, éventuellement à libération automatique, comprend une poignée à saisir par un opérateur pour guider un instrument, un actionneur à activer par l'opérateur et un dispositif de sollicitation exerçant une force. Une pince est déplacée par l'actionneur vers l'instrument contre la force du dispositif de sollicitation et est déplacée par le dispositif de sollicitation en éloignement de l'instrument facultativement lors de la libération de l'actionneur. Des procédés d'actionnement de porte-instruments sont également proposés.
PCT/US2008/064084 2007-05-18 2008-05-19 Transmission de couple, blocage et libération de porte-instruments et procédés d'actionnement des porte-instruments Ceased WO2008144630A2 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US93081807P 2007-05-18 2007-05-18
US60/930,818 2007-05-18
US11/828,424 2007-07-26
US11/828,424 US7959162B2 (en) 2007-07-26 2007-07-26 Releasing instrument holder and method of operating the instrument holder
US12/121,132 2008-05-15
US12/121,132 US9707376B2 (en) 2007-05-18 2008-05-15 Torque-transmitting, locking instrument holder and method for operating the instrument holder

Publications (2)

Publication Number Publication Date
WO2008144630A2 true WO2008144630A2 (fr) 2008-11-27
WO2008144630A3 WO2008144630A3 (fr) 2009-02-05

Family

ID=40122280

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/064084 Ceased WO2008144630A2 (fr) 2007-05-18 2008-05-19 Transmission de couple, blocage et libération de porte-instruments et procédés d'actionnement des porte-instruments

Country Status (1)

Country Link
WO (1) WO2008144630A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520332A (en) * 2013-11-18 2015-05-20 Meditech Endoscopy Ltd Gripping Device
US12053156B2 (en) 2020-05-21 2024-08-06 Cook Medical Technologies Llc Endoscope rotation mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3991545B2 (ja) * 1999-07-16 2007-10-17 日本ゼオン株式会社 医療用粉砕カテーテル装置およびワイヤ駆動装置
US7789825B2 (en) * 2003-09-29 2010-09-07 Ethicon Endo-Surgery, Inc. Handle for endoscopic device
US20070043262A1 (en) * 2005-08-18 2007-02-22 Sightline Technologies Ltd. Fluid supply for endoscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2520332A (en) * 2013-11-18 2015-05-20 Meditech Endoscopy Ltd Gripping Device
US10182705B2 (en) 2013-11-18 2019-01-22 Meditech Endoscopy Ltd Gripping device
US12053156B2 (en) 2020-05-21 2024-08-06 Cook Medical Technologies Llc Endoscope rotation mechanism

Also Published As

Publication number Publication date
WO2008144630A3 (fr) 2009-02-05

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