CN211300367U

CN211300367U - Measuring and positioning device of pressure sensor

Info

Publication number: CN211300367U
Application number: CN201921273556.2U
Authority: CN
Inventors: 吴萌; 李民; 程玥
Original assignee: TEDA INTERNATIONAL CARDIOVASCULAR HOSPITAL
Current assignee: TEDA International Cardiovascular Hospital Co., Ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-08-21
Anticipated expiration: 2029-08-06

Abstract

The utility model relates to a pressure sensor's measurement positioner, characterized by: including support, laser emitter, fixing device, the support includes stand and chassis, stand and chassis fixed connection, fixing device is equipped with the round hole with support stand sliding connection along the vertical direction, fixing device passes through fastening screw fixed, and fixing device is equipped with the mounting hole along its horizontal direction, installs laser emitter in the mounting hole, the fixing device bottom is equipped with the location ring, location ring center round hole and support stand sliding connection, and the location ring passes through fastening screw fixed. Has the advantages that: the utility model discloses the horizontal cross mark central point of the horizontal patient's heart of lying flat is aimed at to the light beam that utilizes laser emitter to send, and the light beam through rotating fixing device drive laser emitter makes things convenient for very much directional pressure sensor's mounting platform, can be fast with pressure sensor fixed mounting, guarantees that measuring position is accurate.

Description

Measuring and positioning device of pressure sensor

Technical Field

The utility model belongs to the technical field of measure the location, especially, relate to a pressure sensor's measurement positioner.

Background

The conventional non-invasive blood pressure monitoring method is mainly used for indirectly judging the systolic pressure and the diastolic pressure by recording the change in the pressure of a cuff to reflect the flowing and pausing of arterial blood. The clinical invasive blood pressure is generally used for puncturing an artery, placing a baroreceptor in an arterial system, even placing the baroreceptor in the left ventricular outflow tract of the heart, monitoring the blood pressure change in real time, even tracing the pressure change waveform, and belongs to the gold standard of blood pressure monitoring. Patients with severe diseases need to precisely detect arterial pressure and venous pressure, so invasive blood pressure examination should be performed on patients with heart failure and myocardial infarction. Invasive blood pressure tests examine the blood pressure of a patient by puncturing and placing baroreceptors in the patient's vein or artery. Invasive blood pressure is generally monitored: arterial blood pressure, central venous pressure, pulmonary artery pressure, left atrial pressure.

The measurement principle is as follows: firstly, the catheter is placed in the blood vessel of the punctured part through puncture, and the outer end of the catheter is directly connected with the pressure sensor. The fluid has pressure transmission function, so that the pressure in the blood vessel is transmitted to the external pressure sensor through the liquid in the catheter, thereby obtaining the dynamic waveform of the pressure change in the blood vessel. The applicable conditions of invasive blood pressure are as follows: lower than 50 mm Hg for severe shock and hypotension patients; severe myocardial infarction and heart failure; extracorporeal circulation open-heart surgery; low temperature anesthesia and controlled depressurization; respiratory failure; the serious patients are subjected to complicated major operations, such as major hypertension, heart disease and major operations, and the operations of removing meningioma and pheochromocytoma are carried out.

When the invasive blood pressure parameters of a human body are measured clinically, the normal operation is to keep the position of the pressure sensor at the horizontal position of the right atrium of the heart (the fourth intercostal of the right axillary midline) when a patient lies down for measurement, and the data can be ensured to be accurate. The specific operation method in clinic is as follows: the nurse draws a cross positioning mark between the fourth ribs of the right axillary midline of the horizontal patient, then holds one end of the horizontal ruler or the U-shaped communicating vessel to align to the center point of the cross positioning mark, so that the horizontal ruler or the U-shaped communicating vessel is always kept in a horizontal state, selects the installation position of the sensor through the other end of the horizontal ruler or the U-shaped communicating vessel, and installs the pressure sensor according to the position.

The disadvantages of the current clinical operation method are: the used level ruler or U-shaped communicating vessel is bound to be contacted with severe patients and related medical equipment, so that secondary pollution is brought, and the infection risk of the patients is increased; adopt spirit level or U type linker positioning sensor, must hand spirit level or U type linker and be that it remains the horizontality throughout, it is very troublesome to operate, needs more than two people at least just can accomplish the location, and work efficiency is extremely low, and the horizontal position that pressure sensor selected is not accurate moreover, directly influences serious illness patient's blood pressure measurement parameter.

The invasive blood pressure measurement of critical patients needs to provide a positioning device which can conveniently, quickly and accurately select the pressure sensor and the horizontal position of the right atrium of the heart of a horizontal patient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a overcome not enough among the prior art, provide a pressure sensor's measurement positioner, can be fast and accurate the horizontal position of heart right atrium when pressure sensor and patient lie flat.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme, a pressure sensor's measurement positioner, characterized by: including support, laser emitter, fixing device, the support includes stand and chassis, stand and chassis fixed connection, fixing device is equipped with the round hole with support stand sliding connection along the vertical direction, fixing device passes through fastening screw fixed, and fixing device is equipped with the mounting hole along its horizontal direction, installs laser emitter in the mounting hole, the fixing device bottom is equipped with the location ring, location ring center round hole and support stand sliding connection, and the location ring passes through fastening screw fixed.

The support adopts two sections of inserted upright columns to form a lifting support structure.

The support chassis is fixedly connected with a plurality of casters to form a movable support structure, and fastening bolts of the casters are in threaded connection with the chassis and can adjust the horizontal position of the support chassis.

The upper surface of the fixing device is provided with an elongated circular hole along the horizontal direction, and a horizontal bead is fixedly connected in the elongated circular hole.

The laser emitter adopts green light with lambda of 515-520nm and 532nm or red light with lambda of 650-660 nm and 635 nm.

Has the advantages that: compared with the prior art, the utility model discloses the horizontal cross mark central point in the right atrium of the patient's heart of lying is aimed at to the light beam that utilizes laser emitter to send, and the light beam through rotating fixing device drive laser emitter makes things convenient for very much directional pressure sensor's mounting platform, can be fast with pressure sensor fixed mounting, guarantees that the measuring position is accurate. The device has the advantages that invasive blood pressure measurement data are accurate, the device does not contact patients and medical equipment, nosocomial infection risks are reduced, the use is convenient, and the clinical work efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the measurement positioning process of the present invention.

In the figure: 1. the device comprises a support 1-1, a stand column 1-2, a chassis 2, a laser emitter 3, a fixing device 3-1, round holes 3-2, fastening screws 3-3, mounting holes 3-4, long slot round holes 4, horizontal beads 5, fastening screws 6, a positioning ring 7, casters 8, a sickbed 9, a pressure sensor 10 and laser beams.

Detailed Description

The following detailed description of the embodiments according to the present invention with reference to the preferred embodiments is as follows:

referring to the attached drawing 1 in detail, the measuring and positioning device of the pressure sensor comprises a support 1, a laser emitter 2 and a fixing device 3, wherein the support comprises an upright post 1-1 and a chassis 1-2 which are fixedly connected, the fixing device is provided with a round hole 3-1 in sliding connection with the upright post of the support along the vertical direction, the fixing device is fixed through a fastening screw 3-2, the fixing device is provided with a mounting hole 3-3 along the horizontal direction, the laser emitter is mounted in the mounting hole, the bottom of the fixing device is provided with a positioning ring 6, the central round hole of the positioning ring is in sliding connection with the upright post of the support, and the positioning ring is fixed through a fastening screw 5.

The preferable scheme of this embodiment is that the support adopts two sections of stand columns of pegging graft to constitute over-and-under type supporting structure. The upper section of the upright column is inserted into the circular tube cavity of the lower section of the upright column, and the height of the upright column can be adjusted up and down by moving the upper section of the upright column and fastening the upper opening of the lower section of the upright column through the fastening nut. The lower opening of the lower section of the upright post is provided with threads which can be in threaded connection with the internal threads in the center of the chassis; or a nut is fixedly connected with the lower opening of the lower section of the upright column circular tube and then fixedly connected with the chassis through a fastening bolt. 3-5 trundles 7 are fixedly connected to the support chassis to form a movable support structure, fastening bolts of the trundles are in threaded connection with the chassis, and the horizontal positions of the support chassis and the fixing device can be adjusted by adjusting the vertical positions of the fastening bolts of the trundles so as to ensure that the emitted laser beams are in a horizontal state. The structure of the lifting support belongs to the technology known by the person skilled in the art and is not described in detail herein. The bracket has a lifting function and can be suitable for the installation heights of the pressure sensors in different clinical environments; the fixing device has a rotating function, so that after the laser beam is aligned with the horizontal cross mark central point of the right atrium of the heart of the horizontal patient, the fixing device only needs to rotate along the horizontal direction to accurately align the laser beam with the installation position of the pressure sensor.

In a preferred embodiment of this embodiment, an elongated circular hole is formed in the upper surface of the fixing device along the horizontal direction, and a horizontal bead 4 is fixedly connected in the elongated circular hole. The horizontal beads are commercially available. The horizontal bead is cylindrical and is directly inserted into the long slot round hole 3-4. The diameter of the long groove round hole is matched with that of the horizontal bead, so that the insertion and the matching are convenient. After inserting, sealing two ends of the long slot round hole by using glass cement. The horizontal bead can be leveled through the adjustment of the caster wheels of the chassis, and the accuracy of the measuring position is ensured.

In the preferred embodiment, the laser emitter adopts green light with λ 515-. Since the human eye is most sensitive to green light in the visible spectrum at wavelengths 520-570nm, green light appears brighter than other colors at the same power. The present embodiment preferably uses green light. The laser emitter of this embodiment chooses for use commodity ancient craftsman's tablet laser pen lamp red green line, and the built-in 1 rechargeable battery USB charges of giving out green light. When in use, the luminous lamp can emit light only by pressing the switch.

Working process

The details are shown in the attached figures 1 and 2,

firstly, assembling the device:

1. assembling a support: inserting the upper section of the upright column into a circular tube cavity of the lower section of the upright column, and screwing the upper section of the upright column through a fastening nut at the upper opening of the lower section of the upright column; the lower opening of the lower section of the upright post is provided with threads which can be in threaded connection with the internal threads in the center of the chassis; 3 trundles are fixedly connected to the support chassis, fastening bolts of the trundles are in threaded connection with the chassis, the levelness of the support is adjusted according to the horizontal beads, and the trundles are locked by nuts; in this embodiment, 3 casters are provided, which can be freely movable and fixed on the support, and the caster structure and the connection mode with the chassis belong to the known technology and are not described again;

2. the positioning circular ring and the fixing device are sequentially sleeved from bottom to top, the laser emitter and the horizontal bead are respectively installed in the corresponding circular holes of the fixing device, and the shape of the circular hole is matched with that of the laser emitter and the horizontal bead. The fixing device and the positioning ring are fixed on the upright post through fastening screws respectively. The positioning ring can move up and down by adjusting the fastening screw, and the fixing device can move up and down or rotate by adjusting the fastening screw. The positioning ring has the function that when the laser beam is aligned with the horizontal cross mark central point of the right atrium of the heart of the horizontal patient, the height of the fixing device can be positioned, and at the moment, the positioning ring is in contact with the bottom of the fixing device and is fixed on the upright post. The contact surface of the positioning circular ring and the bottom of the fixing device is used as a base surface for the horizontal rotation of the fixing device.

The fixing device can be in the shape of a rectangular parallelepiped or a stepped disk. This embodiment is a rectangular parallelepiped.

3. The clinical application is as follows:

(1) according to the operation specification, a patient lies on a sickbed 8, medical staff finds the position of the right atrium (the fourth intercostal of the right axillary midline) of the heart when the patient is in a horizontal position on the body needing to measure the blood pressure, and a skin marker pen is used for making a cross mark;

(2) loosening the fastening screw to move the fixing device and the positioning ring up and down and observe whether the horizontal bead is horizontal or not, opening the laser pen, aligning the light beam emitted by the laser pen with the central point of the cross mark made by the skin marking pen, and screwing the fastening screw to the positioning ring below the fixing device with the adjusted height for positioning, so that the fixing device can be fixed on the adjusted height;

(3) the fixing device which is in contact with the upper surface of the positioning ring rotates in a fan shape along the horizontal direction, the laser beam 10 which is aligned to the position of the right atrium of the heart rotates horizontally, the laser beam is aligned to the center of the bedside pressure sensor 9, the position is the installation position of the pressure sensor, and the horizontal position of the right atrium of the heart when the pressure sensor and a patient lie horizontally can be selected quickly and accurately.

(4) After the pressure sensor is fixed, the invasive blood pressure measuring program can be started.

The above detailed description of the measuring and positioning device of a pressure sensor with reference to the embodiments is illustrative and not restrictive, and several embodiments can be enumerated without departing from the scope of the present disclosure, so that changes and modifications without departing from the general concept of the present disclosure shall fall within the protection scope of the present disclosure.

Claims

1. A measuring and positioning device of a pressure sensor is characterized in that: including support, laser emitter, fixing device, the support includes stand and chassis, stand and chassis fixed connection, fixing device is equipped with the round hole with support stand sliding connection along the vertical direction, fixing device passes through fastening screw fixed, and fixing device is equipped with the mounting hole along its horizontal direction, installs laser emitter in the mounting hole, the fixing device bottom is equipped with the location ring, location ring center round hole and support stand sliding connection, and the location ring passes through fastening screw fixed.

2. The pressure sensor measurement positioning device of claim 1, wherein: the support adopts two sections of inserted upright columns to form a lifting support structure.

3. The measurement positioning device of a pressure sensor according to claim 1 or 2, characterized in that: the chassis of the bracket is fixedly connected with a plurality of casters to form a movable bracket structure, and fastening bolts of the casters are in threaded connection with the chassis and can adjust the horizontal position of the chassis of the bracket.

4. The pressure sensor measurement positioning device of claim 1, wherein: the upper surface of the fixing device is provided with an elongated circular hole along the horizontal direction, and a horizontal bead is fixedly connected in the elongated circular hole.

5. The pressure sensor measurement positioning device of claim 1, wherein: the laser emitter adopts green light with lambda of 515-520nm and 532nm or red light with lambda of 650-660 nm and 635 nm.