CN213155855U

CN213155855U - Reusable rapid calibration fixing device for pressure sensor

Info

Publication number: CN213155855U
Application number: CN202021342195.5U
Authority: CN
Inventors: 唐佳迎; 黄晓霞; 郭芝廷
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-05-11
Anticipated expiration: 2030-07-09

Abstract

The utility model provides a reusable rapid calibration fixing device for a pressure sensor, which comprises a base, a clamping component and a calibration mechanism which are positioned on the base and connected with the pressure sensor, and a fixing mechanism; the base is fixedly connected to one end of the fixing mechanism; the calibration mechanism comprises a laser light source and a laser switch which are arranged on the end surface of the base, and the laser light source is electrically connected with the laser switch; the laser light source is arranged on the same horizontal plane with the pressure sensor, and the cord-shaped light emitted by the laser light source is developed on the body part of the patient. The pressure sensor quick calibration fixing device of the utility model has reasonable structural design, can be firmly fixed on the arm of a patient, and can adjust the size according to the thickness of the arm to match patients with different body types; moreover, the laser light source which is positioned on the same horizontal plane with the pressure sensor is used for calibration, so that real-time, rapid and accurate calibration is realized, the physical signs of the patient are accurately reflected in real time, the patient is timely and accurately treated, and the safety of the patient is ensured.

Description

Reusable rapid calibration fixing device for pressure sensor

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to fixing device is calibrated fast to multiplexing pressure sensor.

Background

Invasive pressure monitoring is an important means for monitoring vital signs in critical care, and is widely applied to the critical care field, and generally comprises Central Venous Pressure (CVP), Arterial Blood Pressure (ABP), Pulmonary Arterial Pressure (PAP) and the like. When invasive pressure monitoring is carried out, the pressure sensor needs to be accurately fixed at the position between the fourth ribs of the axillary midline of the human body so as to ensure the accuracy of the measurement result. The pressure sensor is communicated with the circulatory system of the patient through a catheter which is placed in the patient, and can convert mechanical energy into electric energy, so that the corresponding monitoring equipment can continuously measure the value. However, once the plane of the pressure sensor is slightly lower or slightly higher than the position between the fourth ribs of the axillary midline of the human body, or the pressure sensor is not fixed firmly and shifts, the monitoring result will have errors, which will affect the judgment of the medical staff on the state of the illness of the patient, delay the timely treatment of the patient, and even relate to the life safety of the patient.

Pressure sensor mainly is fixed in on bedrail or gallows through the screw buckle at present, but often because of reasons such as patient's change position, inspection removal, causes pressure sensor and patient standard measurement position skew. To ensure the accuracy of the monitored values, medical personnel often need to repeatedly determine the position of the sensor. Currently, the position of the sensor is determined clinically by visual inspection or leather hose, but there are many problems: determining the position of the sensor by visual inspection, the determined position often being inaccurate; the position of the sensor is determined by using the liquid level of the leather tube, and at least two nurses are often needed to assist in measurement, so that a large amount of nursing labor and time are consumed, and the working efficiency is influenced.

In addition, because the screw base and the buckle of present fixed pressure sensor can't use repeatedly through the disinfection because of the material reason, often abandon the processing after patient's branch of academic or vocational study for avoiding cross infection, increased consumptive material loss, medical resource's waste.

Disclosure of Invention

The utility model aims at providing a structural design is reasonable, quick accurate calibration, firm fixed a quick calibration fixing device for pressure sensor.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a reusable pressure sensor rapid calibration fixing device comprises a base, a clamping component and a calibration mechanism which are positioned on the base and connected with a pressure sensor, and a fixing mechanism; the base is fixedly connected to one end of the fixing mechanism; the calibration mechanism comprises a laser light source and a laser switch which are arranged on the end surface of the base, and the laser light source is electrically connected with the laser switch; the laser light source is arranged on the same horizontal plane with the pressure sensor, and the cord-shaped light emitted by the laser light source is developed on the body part of the patient.

Further, the fixing mechanism is an arm belt; the arm belt is provided with a snap fastener, the sub fastener with the hook thorn is positioned at one end with the base, and the female fastener with the thin and soft fiber is positioned at the other end.

Furthermore, another female button with thin and soft fibers is arranged on the arm belt adjacent to the female button.

Further, the arm belt is made of silica gel.

Furthermore, a hollow hole is formed in the lower portion of the base, and one end of the arm belt penetrates through the hole to enable the base to be connected with the arm belt.

Furthermore, the clamping component is located in the middle of the base, and the laser light source and the laser switch are respectively fixed on the bases on two sides of the clamping component.

Furthermore, the clamping assembly comprises a clamping bottom plate and two clamping upper plates, and the clamping upper plates are symmetrically positioned at the upper parts of two edges of the clamping bottom plate; the clamping bottom plate and the two clamping upper plates form symmetrical clamping grooves; the clamping bottom plate between the two clamping upper plates forms an accommodating area of the pressure sensor main body and a notch located at the end part of the clamping bottom plate.

Further, the clamping component is made of elastic materials.

Furthermore, the clamping upper plate is provided with an inwards concave buckle.

Compared with the prior art, the utility model, have following advantage:

the utility model relates to a reusable pressure sensor rapid calibration fixing device, which has reasonable structural design, can be firmly fixed on the arm of a patient, and can be adjusted according to the thickness of the arm to match patients with different body types; moreover, the laser light source which is positioned on the same horizontal plane with the pressure sensor is used for calibration, so that real-time, rapid and accurate calibration is realized, the physical signs of the patient are accurately reflected in real time, the patient is timely and accurately treated, and the safety of the patient is ensured. The utility model discloses a quick calibration fixing device, economy, pleasing to the eye, practical can alleviate medical care work load, improves work quality and efficiency.

Drawings

Fig. 1 is a schematic structural view of the reusable quick calibration fixing device for pressure sensors of the present invention.

FIG. 2 is a schematic view of a base and clamping assembly.

FIG. 3 is a schematic view of a clamping assembly.

Fig. 4 is a schematic diagram of a pressure sensor.

FIG. 5 is a schematic view of a pressure sensor coupled to a clamping assembly.

Detailed Description

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, a reusable pressure sensor quick calibration fixture 80 includes a base 1, a clamping assembly 3 and a calibration mechanism on the base 1 connected to a pressure sensor 90, and a fixture mechanism. The calibration mechanism comprises a laser light source 21 and a laser switch 22 which are arranged on the end surface of the base 1, and the laser light source 21 is electrically connected with the laser switch 22; the laser source 21 is arranged on the same horizontal plane with the pressure sensor 90 positioned in the holding component 3, and the cord-shaped light emitted by the laser source 21 is developed on the body part of the patient. The fixing mechanism is an arm belt 4, and the base 1 is connected to one end of the arm belt 4. More specifically, the lower portion of the base 1 has a through hole 11, and one end of the arm band 4 passes through the through hole 11 to connect the base 1 and the arm band 4. The base 1 is fixedly connected with the arm belt 4, in one embodiment, the thickness of the arm belt 4 is the same as the height of the through hole 11, and the arm belt 4 and the through hole are matched and fixed in a zero clearance mode; in another embodiment, an adhesive is disposed at the joint between the inner wall of the through hole 11 and the arm band 3, so that the through hole 11 and the arm band 4 are fixed in an adhesive manner.

The arm belt 4 is provided with a snap fastener, a male fastener 41 with a hook is positioned at one end of the base 1, and a female fastener 42 with fine soft fiber is positioned at the other end. In the preferred embodiment, another female buckle 43 with thin soft fiber is provided on the armband adjacent to the female buckle 42, so that the male buckle 41 can be fastened to different

female buckles

42 or 43 to adapt to different patients' arms. In some embodiments, the arm strap 4 is made of silicone.

The clamping component 3 is located in the middle of the base 1, and the laser light source 21 and the laser switch 22 are respectively fixed on the base 1 at two sides of the clamping component 3. In some embodiments, the clamping assembly 3 and the base 1 may be integrally formed. The clamping assembly 3 comprises a clamping bottom plate 31 and two clamping upper plates 32, and the clamping upper plates 32 are symmetrically positioned at the upper parts of two edges of the clamping bottom plate 31; the clamping bottom plate 31 and the two clamping upper plates 32 form symmetrical clamping grooves 33; the two clamping grooves 33 are used for clamping a chassis 92 of the pressure sensor 90, a clamping bottom plate between the two clamping upper plates 33 forms an accommodating area 34 of the pressure sensor main body 91 and a notch 35 located at the end of the clamping bottom plate, the accommodating area 34 is used for placing the sensor main body 91, and the notch 35 is used for clamping a first connecting head 93 of the pressure sensor 90. When the pressure sensor 90 is clamped by the clamping assembly 3, the chassis 92 of the pressure sensor 90 is inserted into the card slot 33 from the opposite side of the clamping assembly 3 with the notch 35, so that the card slot 33 is fixed with the chassis 92, meanwhile, the sensor main body 91 is located in the accommodating area 34 of the clamping assembly, the first connector 93 of the sensor is clamped in the notch 35, and the second connector 94 of the sensor is located at the opposite side of the notch. In some embodiments, the clip assembly 3 is made of an elastic material, and the clip upper plate 32 is provided with an inwardly recessed catch 36.

The utility model discloses a fixing and calibration process of multiplexing pressure sensor quick calibration fixing device as follows:

the armband bandage of the device is fixed on the arm of the patient and is fixed through the snap fastener.

The pressure sensor is inserted into the clamping assembly, and the arm belt is rotated left and right, so that the laser light source and the pressure sensor are positioned on the same horizontal plane.

Pressing down laser switch, laser light source launches strip form light and develops on the patient, and the formation of image is parallel with patient vertical and horizontal plane, can judge whether pressure sensor is in the horizontal position of patient axillary midline to realize quick calibration, accurate measurement's purpose.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.

Claims

1. A reusable quick calibration fixing device for a pressure sensor is characterized in that: the device comprises a base, a clamping assembly and a calibration mechanism which are positioned on the base and connected with a pressure sensor, and a fixing mechanism; the base is fixedly connected to one end of the fixing mechanism; the calibration mechanism comprises a laser light source and a laser switch which are arranged on the end surface of the base, and the laser light source is electrically connected with the laser switch; the laser light source is arranged on the same horizontal plane with the pressure sensor, and the cord-shaped light emitted by the laser light source is developed on the body part of the patient.

2. The reusable pressure sensor quick calibration fixture of claim 1, wherein: the fixing mechanism is an arm belt; the arm belt is provided with a snap fastener, the sub fastener with the hook thorn is positioned at one end with the base, and the female fastener with the thin and soft fiber is positioned at the other end.

3. The reusable pressure sensor quick calibration fixture according to claim 2, wherein: the arm belt adjacent to the female buckle is also provided with another female buckle with thin and soft fibers.

4. The reusable pressure sensor quick calibration fixture according to claim 2, wherein: the arm belt is made of silica gel.

5. The reusable pressure sensor quick calibration fixture of claim 1, wherein: the clamping component is positioned in the middle of the base, and the laser light source and the laser switch are respectively fixed on the bases on two sides of the clamping component.

6. The reusable pressure sensor quick calibration fixture of claim 5, wherein: the clamping assembly comprises a clamping bottom plate and two clamping upper plates, and the clamping upper plates are symmetrically positioned at the upper parts of two edges of the clamping bottom plate; the clamping bottom plate and the two clamping upper plates form symmetrical clamping grooves; the clamping bottom plate between the two clamping upper plates forms an accommodating area of the pressure sensor main body and a notch located at the end part of the clamping bottom plate.

7. The reusable pressure sensor quick calibration fixture of claim 5, wherein: the clamping component is made of elastic materials.