Search

CN-224206838-U - Ultrasonic endoscope

CN224206838UCN 224206838 UCN224206838 UCN 224206838UCN-224206838-U

Abstract

The utility model provides an ultrasonic endoscope with improved durability. The ultrasonic endoscope (12) is provided with a metal ring (41 c) comprising metal, an ultrasonic transducer (48) provided at the distal end portion (40) of the insertion portion (22), and a backing material layer (54) provided between the ultrasonic transducer (48) and the metal ring (41 c), wherein the backing material layer (54) comprises at least one of a polyurea resin, an epoxy resin having a polyurethane structure, and an epoxy resin having a polyether amine structure. According to the technique of the present utility model, durability can be improved.

Inventors

  • MORIMOTO YASUHIKO
  • FURUKAWA KAZUSHI
  • HATTORI KAORI
  • IYAMA SHOZO

Assignees

  • 富士胶片株式会社

Dates

Publication Date
20260508
Application Date
20250226
Priority Date
20240228

Claims (13)

  1. 1. An ultrasonic endoscope, comprising: a tubular member comprising a metal; an ultrasonic vibrator provided along an outer peripheral surface of the cylindrical member, and A backing material layer arranged between the ultrasonic vibrator and the tubular member, The backing material layer comprises at least one of polyurea resin, epoxy resin with polyurethane structure and epoxy resin with polyether amine structure.
  2. 2. The ultrasonic endoscope of claim 1, wherein the ultrasonic endoscope comprises a probe, The backing material layer comprises a heat dissipation filler.
  3. 3. The ultrasonic endoscope of claim 2, wherein the ultrasonic endoscope comprises a probe, The heat dissipation filler has a thermal conductivity of 30W/mK or more.
  4. 4. The ultrasonic endoscope of claim 3, wherein the ultrasonic endoscope comprises a probe, The heat sink filler comprises at least 1 of aluminum oxide, tungsten oxide, silicon carbide, tungsten carbide, silicon nitride, boron nitride, and aluminum nitride.
  5. 5. The ultrasonic endoscope according to any one of claims 1 to 4, wherein, The tubular member and the backing material layer are fixed via an intermediate layer.
  6. 6. The ultrasonic endoscope of claim 5, wherein the ultrasonic endoscope comprises a probe, The intermediate layer prevents ions generated from the metal contained in the cylindrical member from contacting the backing material layer.
  7. 7. The ultrasonic endoscope of claim 6, wherein the ultrasonic endoscope comprises a probe, The backing material layer is fixed to the intermediate layer formed on the outer peripheral surface of the tubular member.
  8. 8. The ultrasonic endoscope according to any one of claims 1 to 4, 6, and 7, comprising: A receiving portion for receiving the tubular member, and A filler filled around the tubular member in the accommodating portion, The viscosity of the filler in the uncured state at a shear rate of 0.01/s is less than 100 Pa.s.
  9. 9. The ultrasonic endoscope of claim 8, wherein the ultrasonic endoscope comprises a probe, The filler is composed of a resin as a base material and a thixotropic agent.
  10. 10. The ultrasonic endoscope of claim 9, wherein the ultrasonic endoscope comprises a probe, The thixotropic agent comprises fumed silica.
  11. 11. The ultrasonic endoscope according to any one of claims 1 to 4, 6, 7, 9, 10, wherein, The backing material layer has a thickness of 0.5mm or more and 1.5mm or less.
  12. 12. The ultrasonic endoscope of claim 11, wherein the ultrasonic endoscope comprises a probe, The center frequency of the vibration frequency of the ultrasonic vibrator is 5MHz or more and 12MHz or less.
  13. 13. The ultrasonic endoscope according to any one of claims 1 to 4, 6, 7, 9, 10, 12, comprising an imaging module including an imaging element, The imaging module is inserted into the cylindrical member.

Description

Ultrasonic endoscope Technical Field The present utility model relates to an ultrasonic endoscope. Background Patent document 1, patent document 2, and patent document 3 describe an ultrasonic endoscope including an ultrasonic transducer array in which a plurality of ultrasonic transducers are arranged in a cylindrical shape. Patent document 1 Japanese patent application laid-open No. 2022-124502 Patent document 2 International publication No. 2018/003737 Patent document 3 Japanese patent application laid-open No. 2022-175241 Disclosure of utility model The utility model aims to provide an ultrasonic endoscope with improved durability. An ultrasonic endoscope according to one embodiment of the present utility model includes a tubular member including a metal, an ultrasonic transducer provided along an outer peripheral surface of the tubular member, and a backing material layer provided between the ultrasonic transducer and the tubular member, wherein the backing material layer includes at least one of a polyurea resin, an epoxy resin having a polyurethane structure, and an epoxy resin having a polyether amine structure. Effects of the utility model According to the technique of the present utility model, durability can be improved. Drawings Fig. 1 is a schematic configuration diagram of an endoscope apparatus using an ultrasonic endoscope as an embodiment of the technique of the present utility model. Fig. 2 is a partially enlarged perspective view showing an external appearance of an example of the distal end portion of the ultrasonic endoscope shown in fig. 1. Fig. 3 is a longitudinal sectional view taken along the axis of the distal end portion of the ultrasonic endoscope shown in fig. 2. Fig. 4 is an enlarged view of a portion of fig. 3. Detailed Description Fig. 1 is a schematic configuration diagram of an endoscope apparatus 10 using an ultrasonic endoscope 12 as an embodiment of the technology of the present utility model. Fig. 2 is a partially enlarged perspective view showing an external appearance of an example of the distal end portion of the ultrasonic endoscope 12 shown in fig. 1. Fig. 3 is a longitudinal sectional view taken along the axis of the distal end portion of the ultrasonic endoscope 12 shown in fig. 2. As shown in fig. 1, the endoscope apparatus 10 includes an ultrasonic endoscope 12, an ultrasonic processor 14 for generating an ultrasonic image, an ultrasonic processor 16 for generating an endoscopic image, a light source 18 for supplying illumination light for illuminating a body cavity to the ultrasonic endoscope 12, a display 20 for displaying the ultrasonic image, the endoscopic image, and the like, a water supply tank 21a for storing cleaning water and the like, and a suction pump 21b for sucking sucked objects in the body cavity. The ultrasonic endoscope 12 includes an insertion portion 22 to be inserted into a body cavity of a subject, an operation portion 24 connected to a base end portion of the insertion portion 22 and operated by a doctor, and a universal cord 26 having one end connected to the operation portion 24. The operation unit 24 is provided with a gas supply and water supply button 28a for opening and closing a gas supply and water supply line (not shown) of the water supply tank 21a, and a suction button 28b for opening and closing a suction line (not shown) from the suction pump 21 b. A pair of angle buttons 29 and a treatment instrument insertion port 30 are provided in the operation unit 24. The other end of the universal cord 26 is provided with a connector 32a for ultrasonic waves connected to the ultrasonic processor device 14, a connector 32b for endoscopes connected to the processor device 16 for endoscopes, and a connector 32c for light sources connected to the light source device 18. The ultrasonic endoscope 12 is detachably connected to the ultrasonic processor device 14, the endoscope processor device 16, and the light source device 18 via the connectors 32a, 32b, and 32c, respectively. The connector 32c is provided with a hose 34a for supplying air and water, which is connected to the water supply tank 21a, and a hose 34b for sucking air, which is connected to the suction pump 21 b. The insertion portion 22 includes, in order from the distal end side, a distal end portion 40 formed of a hard member and including an ultrasonic observation portion 36 and an endoscope observation portion 38, a bent portion 42 connected to the proximal end side of the distal end portion 40, and a soft portion 44 connected between the proximal end side of the bent portion 42 and the distal end side of the operation portion 24. The bending portion 42 is formed by connecting a plurality of bending pieces (corner rings), and is configured to be bendable. The soft portion 44 is elongated and long, and has flexibility. The ultrasonic processor 14 generates and supplies ultrasonic signals for causing a plurality of ultrasonic transducers 48 of an ultrasonic transceiver 46 (see