CN-224220129-U - Miniature probe and monitoring equipment

CN224220129UCN 224220129 UCN224220129 UCN 224220129UCN-224220129-U

Abstract

The utility model discloses a miniature probe and monitoring equipment. The miniature probe comprises a first shell, a first sensor, a PCB substrate and first sealant, wherein the first shell is limited with a containing cavity and a first opening communicated with the containing cavity, the first sensor is arranged in the containing cavity and is provided with a first surface and a second surface which are opposite, the first surface comprises a pressure measuring area, at least the pressure measuring area is arranged corresponding to the first opening, the PCB substrate penetrates through the containing cavity and is in communication connection with the first sensor, the first sealant is filled in the containing cavity and at least closes the first opening, and the miniature probe further comprises a waterproof film layer which at least covers the surface of the first sealant at the first opening. According to the miniature probe, the waterproof film layer is plated on the surface of the miniature probe, so that the anti-corrosion and anti-seepage capabilities of the miniature probe are greatly improved.

Inventors

XIE CHUNHUI
HE GUANXIN

Assignees

深圳市迪曼医疗科技有限公司

Dates

Publication Date: 20260512
Application Date: 20241230

Claims (10)

1. Miniature probe, its characterized in that includes: A first housing defining a receiving cavity and a first opening in communication with the receiving cavity; A first sensor disposed in the receiving cavity, the first sensor having opposing first and second surfaces, the first surface including a pressure measurement region, at least the pressure measurement region disposed corresponding to the first opening; The PCB substrate penetrates through the accommodating cavity and is in communication connection with the first sensor; The first sealant is filled in the accommodating cavity and at least seals the first opening; The miniature probe further comprises a waterproof film layer, and the waterproof film layer at least covers the surface of the first sealant at the first opening.
2. The microprobe of claim 1, further comprising an intermediate carrier plate, wherein the first sensor is disposed on the intermediate carrier plate, and wherein the intermediate carrier plate is coupled to the PCB substrate; wherein, the middle carrier plate is made of monocrystalline silicon or silicon dioxide material.
3. The microprobe according to claim 2, wherein the first sensor is provided with a first pad, the intermediate carrier plate is provided with a second pad, and the first pad and the second pad are electrically connected by a wire; The middle carrier plate is further provided with a third bonding pad, the third bonding pad is located at one end of the middle carrier plate, the second bonding pad is electrically connected with the third bonding pad, the PCB substrate is provided with a fourth bonding pad, and the third bonding pad is electrically connected with the fourth bonding pad through a wire.
4. The miniature probe of claim 3, wherein said first bonding pad is disposed on said first surface, and said second surface is die-bonded to said intermediate carrier.
5. The microprobe of claim 3, wherein the second pad and the third pad are electrically connected by a wire; or the middle carrier plate is embedded with a printed circuit, and the second bonding pad and the third bonding pad are electrically connected through the printed circuit.
6. The microprobe of claim 1, wherein the first housing further comprises a second opening at one axial end thereof, the microprobe further comprising a first conduit comprising a main body section, a necked-in section, and a plug-in section connected to the main body section by the necked-in section, the plug-in section passing through the second opening and being inserted into the receiving cavity, the end of the first housing abutting the first conduit to the necked-in section; And a second sealant is filled between at least the first shell and the plugging section so as to fix the first shell and the first conduit.
7. The micro probe of claim 6, further comprising an intermediate carrier plate, wherein the first sensor is disposed on the intermediate carrier plate, and wherein the second sealant is further coated on a portion of the intermediate carrier plate and a portion of the PCB substrate to fix the intermediate carrier plate and the PCB substrate.
8. The miniature probe of claim 7, wherein said first housing is provided with a boss carrying said intermediate carrier plate, said intermediate carrier plate being disposed on a top surface of said boss, an end of said mating segment being in abutment with a sidewall of said boss.
9. The microprobe of claim 6, wherein the body segment has a metal wire embedded in a wall of the housing.
10. A monitoring device comprising a microprobe according to any of claims 1 to 9.

Description

Miniature probe and monitoring equipment Technical Field The utility model relates to the field of medical equipment, in particular to a miniature probe and monitoring equipment. Background In clinical practice and medical research, measurement of pressure and temperature in human body plays a very important role, for example, critical patients need to directly measure intracranial pressure, coronary internal pressure, renal artery pressure and the like in a surgical intervention or implantation mode in the treatment process so as to obtain more accurate micro vital sign change of human organs. However, these sites are relatively narrow and the pressure and temperature sensors required must be miniaturized to reach the focal location for measurement. Microelectromechanical Systems (MEMS) technology offers new possibilities as a means of monitoring physiological parameters inside the human body due to its small size, light weight and low energy consumption. The existing miniature probes are mostly electrically connected with a pressure sensor, a temperature sensor and a PCB substrate through metal leads, and then the ends of the probes are encapsulated through silica gel. However, the end of the probe is soaked in blood for a long time, so that the blood can slowly permeate the silica gel and corrode the metal lead, and the pressure sensor or the temperature sensor is abnormal in operation. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the miniature probe, and the anti-corrosion and anti-seepage capabilities of the miniature probe are greatly improved by plating the waterproof film layer on the surface of the miniature probe. The utility model also provides monitoring equipment with the miniature probe. A microprobe according to an embodiment of a first aspect of the present utility model comprises: A first housing defining a receiving cavity and a first opening in communication with the receiving cavity; A first sensor disposed in the receiving cavity, the first sensor having opposing first and second surfaces, the first surface including a pressure measurement region, at least the pressure measurement region disposed corresponding to the first opening; The PCB substrate penetrates through the accommodating cavity and is in communication connection with the first sensor; The first sealant is filled in the accommodating cavity and at least seals the first opening; The miniature probe further comprises a waterproof film layer, and the waterproof film layer at least covers the surface of the first sealant at the first opening. The miniature probe provided by the embodiment of the utility model has at least the following beneficial effects: According to the application, the waterproof film layer is plated on the surface of the miniature probe, so that the corrosion resistance and permeation resistance of the miniature probe are greatly improved, the condition that gold wires are corroded due to blood permeation into the accommodating cavity is avoided, the working stability of the miniature probe under the long-time monitoring working condition is remarkably improved, and the miniature probe is beneficial to assisting medical staff in making more accurate disease diagnosis. According to some embodiments of the utility model, the micro probe further comprises an intermediate carrier plate, the first sensor is disposed on the intermediate carrier plate, and the intermediate carrier plate is connected with the PCB substrate; wherein, the middle carrier plate is made of monocrystalline silicon or silicon dioxide material. According to some embodiments of the utility model, the first sensor is provided with a first pad, the intermediate carrier is provided with a second pad, and the first pad and the second pad are electrically connected by a wire; The middle carrier plate is further provided with a third bonding pad, the third bonding pad is located at one end of the middle carrier plate, the second bonding pad is electrically connected with the third bonding pad, the PCB substrate is provided with a fourth bonding pad, and the third bonding pad is electrically connected with the fourth bonding pad through a wire. According to some embodiments of the utility model, the first bonding pad is disposed on the first surface, and the second surface is fixedly connected to the intermediate carrier. According to some embodiments of the utility model, the second pad and the third pad are electrically connected by a wire; or the middle carrier plate is embedded with a printed circuit, and the second bonding pad and the third bonding pad are electrically connected through the printed circuit. According to some embodiments of the utility model, the first housing further comprises a second opening at one axial end thereof, the micro probe further comprises a first catheter, the first catheter comprises a