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CN-224220164-U - Ultrasonic endoscope

CN224220164UCN 224220164 UCN224220164 UCN 224220164UCN-224220164-U

Abstract

The utility model provides an ultrasonic endoscope with improved durability. The ultrasonic endoscope (12) is provided with a distal end portion (40) having a housing space (410) for housing a cable (100) connected to an ultrasonic transducer unit (46), and a filler (80) for filling a gap in the housing space, the cable having a plurality of signal cables (110) electrically connected to an ultrasonic transducer (48) included in the ultrasonic transducer unit (46), a shielding layer (108) for binding and covering the plurality of signal cables, and a sheath (102) for covering the shielding layer, wherein the cable has a 1 st region (AR 1) exposed by the signal cables, a 2 nd region (AR 2) exposed by the shielding layer, and a 3 rd region (AR 3) exposed by the sheath (102) in this order from the ultrasonic transducer unit side in the housing space, and the filler (80) is in contact with at least the 1 st region (AR 1) and the 2 nd region (AR 2).

Inventors

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

Assignees

  • 富士胶片株式会社

Dates

Publication Date
20260512
Application Date
20250226
Priority Date
20240228

Claims (9)

  1. 1. An ultrasonic endoscope is characterized by comprising a distal end portion including an ultrasonic transmitting/receiving section, The front end part is provided with a cable accommodating part for accommodating a cable connected with the ultrasonic wave transmitting and receiving part and a filling agent for filling a gap in the cable accommodating part, The cable comprises a plurality of signal cables electrically connected with the ultrasonic vibrator contained in the ultrasonic transmitting/receiving unit, a 1 st coating member binding and coating the plurality of signal cables, and a2 nd coating member coating the 1 st coating member, In the cable housing portion, the cable includes, in order from the ultrasonic transmitting/receiving portion side, a1 st region where the signal cable is exposed, a 2 nd region where the 1 st sheathing member is exposed, and a 3 rd region where the 2 nd sheathing member is exposed, The filler is in contact with at least the 1 st region and the 2 nd region.
  2. 2. The ultrasonic endoscope of claim 1, wherein the ultrasonic endoscope comprises a probe, The filler is further in contact with the 3 rd region.
  3. 3. The ultrasonic endoscope of claim 2, wherein the ultrasonic endoscope comprises a probe, A protrusion is provided on the outer surface of the 3 rd region.
  4. 4. The ultrasonic endoscope of claim 3, wherein the ultrasonic endoscope comprises a probe, The protrusion is formed of an annular member provided on the outer surface of the 3 rd region along the circumferential direction of the 3 rd region.
  5. 5. The ultrasonic endoscope according to any one of claims 1 to 4, wherein, The smoothness of the outer surface of the 1 st clad member is lower than the smoothness of the outer surface of the 2 nd clad member.
  6. 6. The ultrasonic endoscope of claim 5, wherein the ultrasonic endoscope comprises a probe, The 1 st cladding component exposed in the 2 nd region is a wire mesh set shield.
  7. 7. The ultrasonic endoscope according to any one of claims 1 to 4, wherein, The cable includes a sealing member provided at least at one of a 1 st boundary portion between the 1 st region and the 2 nd region and a 2 nd boundary portion between the 2 nd region and the 3 rd region.
  8. 8. The ultrasonic endoscope of claim 7, wherein the ultrasonic endoscope comprises a probe, The viscosity of the material constituting the sealing member is higher than the viscosity of the material constituting the filler.
  9. 9. The ultrasonic endoscope according to any one of claims 1 to 4, wherein, An imaging unit is provided at the distal end portion, The ultrasonic transmitting/receiving unit is provided on the distal end side of the imaging unit.

Description

Ultrasonic endoscope Technical Field The present utility model relates to an ultrasonic endoscope. Background Patent document 1 describes a convex ultrasonic endoscope. The ultrasonic endoscope has a filler layer provided at the distal end portion thereof, the filler layer filling the internal space between the exterior member and the backing material layer and having a function of fixing the substrate, the non-coaxial cable, and various wiring portions. Patent document 2 describes a radial ultrasonic endoscope. In the distal end portion of the ultrasonic endoscope, a filler is provided in a space between a substrate attached to a side surface of the backing material layer and a connection portion of the plurality of coaxial cables, in a gap between the plurality of coaxial cables, and in a gap through which the plurality of coaxial cables pass. Patent document 3 describes a convex ultrasonic endoscope. A filler layer is provided at the distal end of the ultrasonic endoscope to fill gaps around the plurality of coaxial cables. Patent document 1 Japanese patent laid-open No. 2023-129671 Patent document 2 International publication No. 2018/003737 Patent document 3 International publication No. 2018/003232 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 distal end portion including an ultrasonic transmitting/receiving portion, the distal end portion including a cable accommodating portion accommodating a cable connected to the ultrasonic transmitting/receiving portion, and a filler filling a gap in the cable accommodating portion, the cable including a plurality of signal cables electrically connected to ultrasonic transducers included in the ultrasonic transmitting/receiving portion, a1 st coating member binding and coating the plurality of signal cables, and a2 nd coating member coating the 1 st coating member, wherein the cable sequentially includes a1 st region exposed by the signal cables, a2 nd region exposed by the 1 st coating member, and a 3 rd region exposed by the 2 nd coating member from the ultrasonic transmitting/receiving portion side, and the filler is in contact with at least the 1 st region and the 2 nd region. 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 showing an example of an ultrasonic inspection system 10 using an ultrasonic endoscope 12 as an embodiment of the technology of the present utility model. Fig. 2 is an enlarged plan view showing the distal end portion 40 and its vicinity shown in fig. 1. Fig. 3 is a cross-sectional view taken along line III-III shown in fig. 2, and is a longitudinal cross-sectional view of the front end portion 40 taken along a center line in the longitudinal direction thereof. Fig. 4 is a cross-sectional view taken along line IV-IV shown in fig. 3, and is a cross-sectional view taken along the center line of the circular arc structure of the ultrasonic transducer array 50 of the ultrasonic observation portion 36 of the distal end portion 40. Fig. 5 is a schematic diagram showing a cross section perpendicular to the axis of the signal cable 110. Fig. 6 is a schematic diagram showing a cross section perpendicular to the axis of the cable 100. Fig. 7 is an enlarged view of a portion including the substrate 60 and the cable 100. Fig. 8 is a view showing the position of the filler 80, with a part of the cross section shown in fig. 3 omitted. Fig. 9 is a schematic cross-sectional view in the direction A-A of fig. 7. Fig. 10 is a diagram showing a modification of the protruding portion 102A. Fig. 11 is a diagram showing a modification of the cable 100, and corresponds to fig. 7. Symbol description: 10-ultrasonic examination system, 12-ultrasonic endoscope, 14-ultrasonic processor device, 16-endoscope processor device, 18-light source device, 20-display, 21 a-water supply tank, 21 b-suction pump, 22-insertion section, 24-operation section, 26-universal cord, 28 a-air supply and water supply button, 28 b-suction button, 29-bent angle button, 30-treatment instrument insertion port, 32A, 32b, 32 c-connector, 34 a-air supply and water supply hose, 34 b-suction hose, 36-ultrasonic observation section, 38-endoscope observation section, 40-front end section, 41-exterior member, 42-bending section, 43-soft section, 44-treatment instrument guide opening, 45-treatment tool channel, 46-ultrasonic transducer unit, 47-laminate, 48-ultrasonic transducer, 49-piezoelectric, 50-ultrasonic transducer array, 52-electrode, 52A-individual, 52 b-transducer ground, 54-backing material layer, 60-substrate, 60a, 60b, 60 c-side, 62-electrode pad, 64-ground electrode pad, 76-acoustic matching layer, 78-acoustic lens, 80-filler, 82-window, 84-objective lens, 86-imaging element, 88-illumination window, 90-cleaning nozzle