Source: https://patents.google.com/patent/US8038646?oq=flatulence
Timestamp: 2018-03-24 10:29:09
Document Index: 255078054

Matched Legal Cases: ['art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 8']

US8038646B2 - Body-insertable apparatus and manufacturing method thereof - Google Patents
Body-insertable apparatus and manufacturing method thereof Download PDF
US8038646B2
US8038646B2 US11658285 US65828505A US8038646B2 US 8038646 B2 US8038646 B2 US 8038646B2 US 11658285 US11658285 US 11658285 US 65828505 A US65828505 A US 65828505A US 8038646 B2 US8038646 B2 US 8038646B2
US11658285
US20080294101A1 (en )
The communication adjusting mechanism 6 adjusts the communication state between the first communication pipe 4 and the second communication pipe 5 according to control of the control circuit 7 and has the function of controlling expanding and contracting operation of the balloon member 3 as the flow generating part by performing such adjusting operation. Specifically, the communication adjusting mechanism 6 has the sheet holding substrate 6 a formed with a predetermined concave region, a sheet member 6 b arranged to cover the concave region on the sheet holding substrate 6 a, and a fixing member 6 c contacting and fixing the outer circumferential portion of the sheet member 6 b onto the sheet holding substrate 6 a. The communication adjusting mechanism 6 also has a pressing member 6 d for applying a predetermined press force to the sheet member 6 b, a spring member 6 e for generating the press force applied by the pressing member 6 d, a spring substrate 6 f holding the spring member 6 e, and a shape memory member 6 g for changing the position of the pressing member 6 d to the sheet member 6 b.
The sheet holding substrate 6 a has a configuration in which the concave region is formed in the region corresponding to the communication pipe forming part 10. Specifically, the concave region is formed near the center axis in the longitudinal direction of the body-insertable apparatus formed with the communication pipe forming part 10 so that the end of the first communication pipe 4 and the end of the second communication pipe 5 formed in the communication pipe forming part 10 are opened into such concave region.
The shape memory member 6 g changes the position of the pressing member 6 d with respect to the sheet member 6 b. Specifically, the shape memory member 6 g has a bar-like or coil-like configuration in which one end is fixed onto the spring substrate 6 f and the other end is fixed onto the pressing member 6 d and is formed of a shape memory alloy having a predetermined shape memory characteristic and a predetermined electric resistance value. More specifically, the shape memory member 6 g has a length enough for contacting the pressing member 6 d with the sheet member 6 b under the temperature conditions equal to the temperature in a body. The shape memory member 6 g has the function of changing its shape at a predetermined temperature, e.g., under the temperature conditions sufficiently higher than the temperature in a body to move the pressing member 6 d away from the sheet member 6 b.
The control circuit 7 has the function of controlling driving as the flow generating unit of the balloon member 3 through the presence or absence of electric current supply to the shape memory member 6 g and functions as an example of a control unit controlling expanding and contracting operations of an expansion and contraction film changing the shape by performing at least one of the expanding and contracting operations. Specifically, the control circuit 7 has the function of supplying an electric current to the shape memory member 6 g when the body-insertable apparatus according to the first embodiment is introduced into the body to reach a predetermined position in the body. Such electric current is flowed into the shape memory member 6 g to generate Joule heat in the shape memory member 6 g so that the temperature of the shape memory member 6 g rises due to the Joule heat to change the shape of the shape memory member 6 g. A configuration defining the electric current supply timing may have a timer mechanism or may incorporate a radio reception mechanism and supply a control signal from the outside. It may also have a sensor (such as a lead switch) sensing magnetism to turn on the circuit so that the circuit is turned on by a magnetic field applied from the outside of the body for supplying an electric current to the shape memory alloy.
Before immersing the communication pipe forming part 10 into the liquefied elastic material 20, as shown in FIG. 7, a heat-resistance coating 21 is provided to a predetermined region on the surface of the communication pipe forming part 10. Any material forming the heat-resistant coating 21 can be used and must exhibit a characteristic stable under the temperature conditions of at least about the melting point of the elastic material 20. As shown in FIG. 7, a specific region coated with the heat-resistant coating 21 is a region except for the outer circumferential portion of an expansion and contraction forming region 19 a.
The heat-resistant coating 21 functions as a heat-resistant protective film preventing the melting of the surface of the communication pipe forming part 10 due to the heat of the elastic material 20 when the liquefied elastic material 20 is coated onto the communication pipe forming part 10. Specifically, the heat-resistant coating 21 is formed in part of the surface of the communication pipe forming part 10 including the opening 20, e.g., the region except for the outer circumferential portion of the expansion and contraction forming region 19 a shown in FIG. 7.
Specifically, as shown in FIG. 8, the body-insertable apparatus according to the second embodiment has, in the housing 1, a storage chamber 22 for storing the taken fluid such as body fluid, a balloon member 23 forming part of the outer wall portion of the storage chamber 22 to change the volume of the storage chamber 22, an outlet 24 communicating the balloon member 23 with the outside of the body-insertable apparatus, a first communication pipe 25 communicated with the storage chamber 22, and a second communication pipe 26 communicated with the outside of the body-insertable apparatus. The first communication pipe 25 and the second communication pipe 26 are formed in the sheet holding substrate 6 a. Like the first communication pipe 4 and the second communication pipe 5 according to the first embodiment, the first communication pipe 25 and the second communication pipe 26 are formed so that one end of the first communication pipe 25 and one end of the second communication pipe 26 are formed to be opened in the concave region formed in the sheet holding substrate 6 a.
According to the second embodiment, the balloon member 23 holds fluid such as a physiological salt solution like the first embodiment and maintains the balloon member to be communicated with the outer space of the body-insertable apparatus via the outlet 24 before and after taking in fluid such as body fluid. The second embodiment employs a configuration in which the first communication pipe 25 and the second communication pipe 26 are arranged between the storage chamber 22 and the outer space of the body-insertable apparatus and the communication state between the first communication pipe 25 and the second communication pipe 26 is controlled by the communication adjusting mechanism 6.
As shown in FIG. 11, the body-insertable apparatus according to the fourth embodiment has a configuration in which a housing 34 does not include all components and a balloon member 35 functioning as an example of the flow generating unit is directly contacted with the outer space. Specifically, the housing 34 is formed to include only the communication adjusting mechanism 6, the control circuit 7, and the power source part 8 and the balloon member 35 is arranged in the state that the inner space is communicated with the first communication pipe 25 on the outside of the housing 34, more specifically, on the back surface of the sheet holding substrate 6 a (a surface opposite the surface on which the sheet member 6 b is arranged). Like the third embodiment, the body-insertable apparatus according to the fourth embodiment has a configuration having a storage chamber 36 formed with most part of the outer wall portion by the balloon member 35 and storing fluid such as medication in the storage chamber 36, that is, in a region covered by the balloon member 35 and the back surface of the sheet holding substrate 6 a.
The fluid discharging of the body-insertable apparatus according to the fourth embodiment will be described briefly. Like the first embodiment, the control circuit 7 supplies an electric current to the shape memory member 6 g at predetermined timing, the temperature of the shape memory member 6 g rises by Joule heat due to the electric current to change its shape. The shape change of the shape memory member 6 g changes the press force of the pressing member 6 d. Corresponding to the change of the press force, the shape change of the sheet member 6 b communicates the first communication pipe 25 with the second communication pipe 26. The inside of the storage chamber 36 is communicated with the outer space of the body-insertable apparatus. The stored fluid such as medication is discharged by the contracting operation of the balloon member 35 forming most part of the outer wall of the storage chamber 36.
FIG. 12 is a schematic diagram of the body-insertable apparatus according to the fourth embodiment showing the state after discharging fluid such as medication stored in the storage chamber 36. According to the fourth embodiment, the stored fluid is discharged by the contracting operation of the balloon member 35 as the fluid generating unit. The volume of the storage chamber 36 after completing the discharging is almost 0. As shown in FIG. 12, the expansion and contraction film constructing the balloon member 35 is contacted with the back surface of the sheet holding substrate 6 a.
According to the fourth embodiment, the longitudinal length of the body-insertable apparatus is reduced by a predetermined length d before and after discharging fluid and the volume is reduced according to the reduction of the length. As is well known, the body-insertable apparatus is made smaller to reduce the load for the body. The body-insertable apparatus according to the fourth embodiment can reduce the load for the body by decreasing the occupied volume in the body after the fluid discharging.
a shape memory member that changes the pressing force so as to communicate the other end of the first communication pipe and the other end of the second communication pipe according to the control of the control unit.
US11658285 2004-10-15 2005-10-14 Body-insertable apparatus and manufacturing method thereof Active 2028-03-27 US8038646B2 (en)
JP2004-302149 2004-10-15
JP2004302149A JP4656909B2 (en) 2004-10-15 2004-10-15 The body-insertable device and manufacturing method thereof
PCT/JP2005/019356 WO2006041222A3 (en) 2004-10-15 2005-10-14 Body-insertable apparatus for aspirating and expelling body fluid and manufacturing method thereof
US20080294101A1 true US20080294101A1 (en) 2008-11-27
US8038646B2 true US8038646B2 (en) 2011-10-18
ID=36061523
US11658285 Active 2028-03-27 US8038646B2 (en) 2004-10-15 2005-10-14 Body-insertable apparatus and manufacturing method thereof
US (1) US8038646B2 (en)
EP (1) EP1804890B1 (en)
JP (1) JP4656909B2 (en)
KR (1) KR100929347B1 (en)
CN (1) CN101039715B (en)
DE (1) DE602005026150D1 (en)
WO (1) WO2006041222A3 (en)
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CN101039715B (en) 2011-12-07 grant
CN101039715A (en) 2007-09-19 application
KR20070065435A (en) 2007-06-22 application
KR100929347B1 (en) 2009-12-03 grant
EP1804890A2 (en) 2007-07-11 application
JP2006110193A (en) 2006-04-27 application
WO2006041222A3 (en) 2006-06-01 application
WO2006041222A2 (en) 2006-04-20 application
JP4656909B2 (en) 2011-03-23 grant
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EP1804890B1 (en) 2011-01-26 grant
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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KAWANO, HIRONAO;REEL/FRAME:018829/0526