Source: https://patents.google.com/patent/US6599287
Timestamp: 2018-02-19 08:11:14
Document Index: 594818311

Matched Legal Cases: ['art 113', 'arts 153', 'arts 153', 'art 113', 'arts 153', 'arts 153', 'art 51', 'art 52', 'art 113', 'art 53', 'art 81', 'art 82', 'art 82', 'art 10', 'art 153', 'art 153', 'art 153', 'art.\n3', 'art.\n14']

US6599287B2 - Medical energy irradiation apparatus - Google Patents
Medical energy irradiation apparatus
US6599287B2
US6599287B2 US09895260 US89526001A US6599287B2 US 6599287 B2 US6599287 B2 US 6599287B2 US 09895260 US09895260 US 09895260 US 89526001 A US89526001 A US 89526001A US 6599287 B2 US6599287 B2 US 6599287B2
US09895260
US20020016619A1 (en )
A linking mechanism is provided at the proximal unit 50 to move the endoscope 124. Therefore, as shown in FIG. 13A through FIG. 13C, while the endoscope 124 retracts toward the proximal end of the main unit 101 as the pins 118 of the reflecting part 113 move from the extension parts 153 b toward the slide parts 153 a, the endoscope 124 moves toward the distal end of the main unit 101 as the pins 118 of the reflecting part 113 move from the slide parts 153 a toward the extension parts 153 b.
Said linking mechanism has a lever 86 mounted rotatably on a pin 85 provided on the mounting part 51. Pins 87 and 88 provided on both ends of the lever 86 engage with a grove 89 formed on the operating part 52 of the reflecting part 113 and a groove 90 formed on the operating part 53 of the endoscope 124 respectively.
When the motor 63 causes the hook 67 to reciprocate, the engaging member 80 will be pressed by the hook 67 and will be made to stop by either the restricting plate 76 or 77. Under this condition, the hook 67 goes over the taper part 81 and automatically engages with the narrow part 82 of the engaging member 80. In other words, when the engaging member 80 is located between the restricting plate 76 and the restricting plate 77, the hook 67 can be automatically engaged with the narrow part 82. This provides an advantage that it is not necessary to keep the engaging member 80 toward the side of either the restricting plate 76 or the restricting plate 77, for example, the side of the restricting plate 76 in advance, when installing the insertion part 10 a on the proximal unit 50 a.
As can be seen from the above description, the second embodiment has a constitution where the hook with a substantially U-shaped groove is guided by the guide part formed in the tapered shape to engage with the narrow part in the indented shape to make it possible for the first engaging member provided on the power transmission member to engage with the second engaging member to be easily disengaged when necessary. For example, the hook can automatically engage with the narrow part by simply causing the hook to reciprocate by the drive mechanism even if the hook is not precisely positioned. Therefore, it is possible to use an inexpensive small motor as a driving device of the drive mechanism, reduce the size and weight of the drive mechanism, and improve the maneuverability of the laser beam irradiation apparatus.
Although it was shown above that the extension part 153 b of the guide groove 153 is located on the proximal side of the slide part 153 a in the third embodiment, it can also be positioned on the distal side of the slide part 153 a.
Next, a laser beam irradiation apparatus according to the fourth embodiment will be described in the following with reference to FIG. 18 through FIG. 24. The descriptions will be concentrated on the differences from the first through third embodiments and common members will be indicated with the same symbols so that their descriptions do not have to be repeated.
1. An energy irradiation apparatus for medical treatment of tissues through irradiation of energy comprising:
a long main unit;
an emitting part disposed moveably inside a distal end of said main unit for emitting energy transmitted to a distal side from a proximal side;
a power transmission member disposed moveable inside said main unit, to a distal end of which is mounted said emitting part and having a proximal end at which a first engaging member is provided;
a drive unit having a second engaging member which removably engages the first engaging member and a drive mechanism for reciprocating said second engaging member; and
said main unit being removably engageable with said drive unit to form one body and permit the first and second engaging members to engage one another so that operation of the drive mechanism reciprocates the power transmission member.
2. An energy irradiation apparatus as claimed in claim 1, further comprising a restricting mechanism,
in which either one of the first engaging member or the second engaging member has a hook with a substantially U-shaped groove,
the other one of the first engaging member or the second engaging member comprises an indented narrow part, to which the groove fits, and guide parts formed in a tapered shape provided adjacent to the narrow part for leading the groove to the narrow part, and
said restricting mechanism restricts motion of the first engaging member when leading the groove into the narrow part.
3. An energy irradiation apparatus as claimed in claim 1, in which said power transmission member also serves as a transmission member for transmitting the energy from the proximal side to the distal side.
a guide mechanism having slide parts provided within a range required for the reciprocating motion of the reflecting part, and extension parts for tilting the reflecting part further toward a direction parallel to an axis of said main unit than it was engaged with the slide parts, and engaging with a portion of the reflecting part slidably to change an angle of the reflecting part as the reflecting part moves in the longitudinal direction, and
an operating part provided on the proximal side for moving the reflecting part between a position where it engages with the slide parts and a position where it engages with the extension parts.
7. An energy irradiation apparatus as claimed in claim 6, in which said guide mechanism comprises connection parts in a substantially U-shape for connecting the slide parts with the extension parts.
in which said linking mechanism retracts the endoscope toward the proximal side when a portion of the reflecting part moves from the extension parts to the slide parts, and moves the endoscope toward the distal side when the same moves from the slide parts to the extension parts.
9. An energy irradiation apparatus as claimed in claim 6, further comprising a restricting mechanism for selectively allowing either the engagement between said reflecting part and the slide parts or the movement of the endoscope toward the distal side.
said apparatus further comprising an angle changing mechanism for changing a reflecting angle of the flat surface by repetitively flexing the flexing part repeated in accordance with the reciprocating motion of the emitting part.
14. An energy irradiation apparatus as claimed in claim 13, in which said flexing part has a groove on a first surface located on the flat surface side and flexes repetitively around the groove.
said angle changing mechanism consists of guide grooves that are not parallel to an axial direction of said main unit and formed on a housing of said main unit, and protrusions formed on side surfaces of the reflecting part to engage with the guide grooves.
19. An energy irradiation apparatus as claimed in claim 13, in which the sum of an incident angle and the reflecting angle is less than 90 degrees when the reflecting part is located at a distal position, and greater than 90 degrees when it is located at a proximal position.
an elongated main unit;
an emitting part movably disposed in a distal end portion of said main unit to emit energy;
a power transmission member movably disposed inside said main unit and having a distal end portion at which is located said emitting part;
a drive mechanism operable to longitudinally move the power transmission member relative to the main unit;
a first engaging member provided at said power transmission member for receiving a drive force from said drive mechanism; and
a second engaging member provided at said drive mechanism and removably engageable with the first engaging member so that engagement of said first and second engaging members with one another causes the power transmission member to receive the driving force from the drive mechanism to longitudinally move the power transmission member.
US09895260 2000-07-03 2001-07-02 Medical energy irradiation apparatus Active US6599287B2 (en)
JP2000-201638 2000-07-03
JP2000201638A JP2002017877A (en) 2000-07-03 2000-07-03 Medical energy irradiator
US20020016619A1 true US20020016619A1 (en) 2002-02-07
US6599287B2 true US6599287B2 (en) 2003-07-29
ID=18699296
US09895260 Active US6599287B2 (en) 2000-07-03 2001-07-02 Medical energy irradiation apparatus
US (1) US6599287B2 (en)
JP (1) JP2002017877A (en)
DE (2) DE60115770T2 (en)
EP (1) EP1170034B1 (en)
US20090234441A1 (en) * 2003-11-24 2009-09-17 Sweet Richard M Method and apparatus for preventing dialysis graft intimal hyperplasia
EP1095671A2 (en) * 1999-10-27 2001-05-02 Terumo Kabushiki Kaisha Laser irradiation apparatus
JP2002017772A (en) * 2000-07-03 2002-01-22 Terumo Corp Medical energy irradiation device
US8337549B2 (en) * 2003-11-24 2012-12-25 Richard M. Sweet Apparatus for preventing dialysis graft intimal hyperplasia
JP2002017877A (en) 2002-01-22 application
EP1170034A3 (en) 2003-11-12 application
US20020016619A1 (en) 2002-02-07 application
DE60115770D1 (en) 2006-01-19 grant
EP1170034B1 (en) 2005-12-14 grant
EP1170034A2 (en) 2002-01-09 application
DE60115770T2 (en) 2006-11-02 grant
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:IWAHASHI, SHIGENOBU;MAKI, SHIN;SAKAGUCHI, AKIRA;REEL/FRAME:012272/0653;SIGNING DATES FROM 20010824 TO 20010828