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CN-224231611-U - Photoacoustic imaging probe with dustproof structure

CN224231611UCN 224231611 UCN224231611 UCN 224231611UCN-224231611-U

Abstract

The utility model discloses a photoacoustic imaging probe with a dustproof structure, which comprises a probe main body, wherein a signal acquisition optical window is arranged on the front side of the probe main body, a dustproof ventilation assembly is arranged on the front side of the probe main body, the dustproof sealing plate is clamped with a clamping groove through a clamping block to seal the signal acquisition optical window in a non-use state of the probe main body, the internal ventilation water-blocking structure can block invasion of dust and body fluid and maintain ventilation so as to keep dryness, the laser energy transmission efficiency is ensured, the dustproof sealing plate can be quickly turned over through a rotating shaft to open the inside clamped into a groove to realize fixation during use, the whole operation is convenient and fast, no additional tools are needed, high-frequency scene adaptation is realized, manual cleaning frequency is reduced, in addition, the dustproof ventilation assembly is integrally integrated on the front side of the probe main body, the structure is compact, no additional space occupation is realized, the clamping design ensures sealing stability, and the problem that the traditional split sealing cover is easy to lose or lose efficacy is avoided.

Inventors

  • YAO ZHENGPENG

Assignees

  • 武汉昕微电子科技有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (8)

  1. 1. The photoacoustic imaging probe with the dustproof structure is characterized by comprising a probe body (1), wherein a signal acquisition optical window (2) is arranged on the front side of the probe body (1), a dustproof ventilation assembly (3) is arranged on the front side of the probe body (1), and the dustproof ventilation assembly (3) is positioned on the front side of the signal acquisition optical window (2); Dustproof ventilation subassembly (3) are including seting up in recess (301) of probe main part (1) top front side, the inside front side of recess (301) rotates and is connected with pivot (302), the front side fixedly connected with dustproof closing plate (303) of pivot (302), the inside of dustproof closing plate (303) front side is provided with ventilates and blocks water structure (304), ventilates and blocks water structure (304) and be located the front side of signal acquisition optical window (2), draw-in groove (305) have been seted up to the bottom of probe main part (1) front side, the bottom fixedly connected with fixture block (306) of dustproof closing plate (303) rear side, fixture block (306) and draw-in groove (305) joint.
  2. 2. The photoacoustic imaging probe with the dustproof structure according to claim 1, wherein the ventilation and water blocking structure (304) comprises a caulking groove (3041) formed in the front side of the dustproof sealing plate (303), a clamping frame (3042) is arranged in the caulking groove (3041), a waterproof membrane (3043) is arranged in the front side of the clamping frame (3042), the waterproof membrane (3043) is made of polytetrafluoroethylene materials, a nanofiber filter layer (3044) is arranged in the rear side of the clamping frame (3042), and the nanofiber filter layer (3044) is located in the rear side of the waterproof membrane (3043).
  3. 3. The photoacoustic imaging probe with the dustproof structure according to claim 1, wherein the two sides of the probe body (1) are provided with anti-skid grooves (4), and the anti-skid grooves (4) are concave.
  4. 4. The photoacoustic imaging probe with the dustproof structure according to claim 1, wherein a fixing block (5) is fixedly connected to the rear side of the inner bottom side of the groove (301), and a fixing groove (6) is formed in the bottom of the front side of the dustproof sealing plate (303).
  5. 5. The photoacoustic imaging probe with the dustproof structure according to claim 4, wherein the outer side of the fixed block (5) is provided with reinforcing grains, and the reinforcing grains are in a grid shape.
  6. 6. The photoacoustic imaging probe with the dustproof structure according to claim 2, wherein the two sides of the rear side of the dustproof sealing plate (303) are provided with mounting grooves (7), the mounting grooves (7) are communicated with the caulking grooves (3041), the two sides of the clamping frame (3042) are fixedly connected with mounting blocks (8), and the mounting blocks (8) are clamped inside the mounting grooves (7).
  7. 7. The photoacoustic imaging probe with the dustproof structure according to claim 2, wherein a sealing ring pad (9) is adhered to the rear side of the clamping frame (3042), the rear side of the sealing ring pad (9) is in contact with the front side of the probe body (1), and the sealing ring pad (9) is located on the outer side of the signal collecting optical window (2).
  8. 8. The photoacoustic imaging probe with the dustproof structure according to claim 1, wherein the clamping groove (305) and the clamping block (306) are both trapezoid-shaped and mutually fit.

Description

Photoacoustic imaging probe with dustproof structure Technical Field The utility model relates to the technical field of biomedical imaging, in particular to a photoacoustic imaging probe with a dustproof structure. Background The photoacoustic effect was discovered by bell earlier than 1880, but in recent 80 years, the related research and application progress slowly, after the 20 th century 60, along with the development of the micro-signal detection technology and the advent of strong light sources, the research of the photoacoustic effect and the application thereof is re-active, until the later 90 s, the photoacoustic imaging technology based on the photoacoustic effect is rapidly developed and widely applied to the biomedical field, the core part of the photoacoustic imaging is a photoacoustic sensor probe, and the early photoacoustic probe has various limitations in structural design and performance, such as large volume, imaging resolution and sensitivity to be improved, difficult realization of miniaturization and portability, and the like, which limits the application range and clinical popularization of the photoacoustic imaging technology to a certain extent. In clinical and industrial application, photoacoustic imaging probe is core part, and current probe is when not using, and signal acquisition optical window lacks effective shutoff and antiskid measure, makes its surface be liable to adhere to dust, body fluid or granule pollutant, and these pollutants can cause laser energy attenuation or scattering, reduces photoacoustic signal excitation efficiency, and partial probe is equipped with the split type sealed cowling of cover in the head when not using, can play dustproof shutoff effect to optical light transmission window, but can't compromise ventilation, is difficult to maintain optical light transmission window department dry environment, in view of this, proposes a photoacoustic imaging probe that possesses dustproof construction to solve above-mentioned problem. Disclosure of utility model The utility model aims to provide a photoacoustic imaging probe with a dustproof structure, and aims to solve the problems that when the existing probe is not used, a signal acquisition optical window lacks effective sealing and anti-skidding measures, so that dust, body fluid or particle pollutants are easy to adhere to the surface of the probe, the pollutants can cause laser energy attenuation or scattering, the excitation efficiency of photoacoustic signals is reduced, and part of the probe is provided with a split sealing cover covered on the head part when the probe is not used, so that the optical light-transmitting window can be sealed in a dustproof manner, ventilation cannot be realized, and the drying environment at the optical light-transmitting window is difficult to maintain. In order to achieve the above object, the photoacoustic imaging probe with the dustproof structure provided by the utility model comprises a probe main body, wherein a signal acquisition optical window is arranged on the front side of the probe main body, a dustproof ventilation assembly is arranged on the front side of the probe main body, and the dustproof ventilation assembly is positioned on the front side of the signal acquisition optical window; The dustproof ventilation assembly comprises a groove formed in the front side of the top of the probe body, the front side inside the groove is rotationally connected with a rotating shaft, the front side of the rotating shaft is fixedly connected with a dustproof sealing plate, a ventilation water-blocking structure is arranged inside the front side of the dustproof sealing plate, the ventilation water-blocking structure is located the front side of the signal acquisition optical window, a clamping groove is formed in the bottom of the front side of the probe body, a clamping block is fixedly connected to the bottom of the rear side of the dustproof sealing plate, and the clamping block is clamped with the clamping groove. Preferably, the ventilation water-blocking structure comprises a caulking groove formed in the front side of the dustproof sealing plate, a clamping frame is arranged in the caulking groove, a waterproof membrane is arranged on the front side of the inside of the clamping frame, the waterproof membrane is made of polytetrafluoroethylene materials, a nanofiber filter layer is arranged on the rear side of the inside of the clamping frame, and the nanofiber filter layer is located on the rear side of the waterproof membrane. Preferably, anti-skid grooves are formed in two sides of the probe main body, and the anti-skid grooves are concave. Preferably, the rear side of the bottom side inside the groove is fixedly connected with a fixing block, and the bottom of the front side of the dustproof sealing plate is provided with a fixing groove. Preferably, the outer side of the fixed block is provided with reinforcing grains, and the reinforcing grains are