CN109780457B

CN109780457B - Annular light-transmitting shielding plate structure capable of moving and neonatal nostril illuminating device

Info

Publication number: CN109780457B
Application number: CN201910109382.4A
Authority: CN
Inventors: 赵烟桥; 韩玉翠; 史领
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2017-01-11
Filing date: 2017-01-11
Publication date: 2020-05-19
Anticipated expiration: 2037-01-11
Also published as: CN109812716B; CN109812715A; CN109812715B; CN106594553B; CN106594553A; CN109812716A; CN109780457A

Abstract

The invention relates to a movable annular light-transmitting shielding plate structure and a neonatal nostril illuminating device, belonging to the fields of neonatal supplies, pediatric medical instruments, optical illumination and the like; the lighting device is characterized in that an objective lens, a pinhole, an annular light-transmitting baffle plate and an ellipsoidal reflector are sequentially arranged in a shell along the light propagation direction; the focal position of the objective lens is superposed with the far focal position of the ellipsoidal reflector, and a pinhole is arranged at the superposed position; the parallel light beams irradiate the objective lens along the direction of the optical axis to form a point light source at the position of the pinhole, and the point light source is reflected to a near-focus position by an ellipsoidal reflector and converged into a point light spot; the annular light-transmitting baffle plate can move between the pinhole and the ellipsoidal reflector along the direction of the optical axis, and the sizes of the outer ring and the inner ring of the annular light-transmitting baffle plate can be adjusted; the neonatal nostril illuminating device can provide high-quality convergent illuminating light beams with a very simple structure.

Description

Annular light-transmitting shielding plate structure capable of moving and neonatal nostril illuminating device

The application is a divisional application of the invention patent application 'a neonatal nostril illuminating device'.

Original application No.: 2017100209129.

application date of the original case: 2017-01-11.

The name of the original invention is: a neonatal nostril illuminating device.

Technical Field

The invention discloses a movable annular light-transmitting shielding plate structure and a neonatal nostril illuminating device, and belongs to the fields of neonatal supplies, pediatric medical instruments, optical illumination and the like.

Background

The nasal discharge can obstruct breathing and bring uncomfortable feeling to people. Adult can pick out the nasal shit by himself when having the nasal shit in the nostril, however, for neonate, because limbs are developed incompletely, can't independently pick out the nasal shit, therefore needs parental's help.

However, since the newborn is not aware of the cooperation with parents, the newborn can perform intrinsic resistance during the nasal discharge, the nasal mucosa is easily damaged, and the nasal discharge is difficult to be performed.

Since nasal discharge is hidden inside the nostrils, the nostrils of the neonate need to be illuminated, which places high demands on the convergence properties of the illumination beam for the following reasons:

firstly, if the light beam is dispersed, the light beam can irradiate the eyes of the newborn, so that the newborn can wake up from sound sleep, and the nose and feces digging work cannot be carried out;

secondly, the nostrils of the neonate are small, and if the light beam is diffused, the illumination intensity is possibly insufficient, and the difficulty in the operation of removing the nasal discharge is brought.

Therefore, the illuminating device with a good convergence function is a key auxiliary device for smoothly carrying out the nasal discharge digging work of the newborn.

However, the light beams are divergent regardless of the daily lighting lamp and the flashlight, and the function of convergent lighting cannot be realized.

Disclosure of Invention

Aiming at the requirement of illuminating the nostrils of the newborn in the nasal shit digging work, the invention designs the nostril illuminating device of the newborn, which can provide high-quality convergent illuminating light beams with a very simple structure.

The purpose of the invention is realized as follows:

a neonatal nostril illuminator, in the outer cover, set up objective, pinhole, annular light-permeable baffle plate and ellipsoidal reflector sequentially along the direction of light propagation; the focal position of the objective lens is superposed with the far focal position of the ellipsoidal reflector, and a pinhole is arranged at the superposed position; the parallel light beams irradiate the objective lens along the direction of the optical axis to form a point light source at the position of the pinhole, and the point light source is reflected to a near-focus position by an ellipsoidal reflector and converged into a point light spot; the annular light-transmitting baffle plate can move between the pinhole and the ellipsoidal reflector along the direction of the optical axis, and the size of the outer ring and the inner ring of the annular light-transmitting baffle plate can be adjusted.

Above-mentioned neonate's nostril lighting device, the outer loop size of annular printing opacity shielding plate can be adjusted, realizes through following structure:

the annular light-transmitting shielding plate is characterized in that a plurality of layers of extending ends are arranged on an outer ring of the annular light-transmitting shielding plate, each layer of extending end is in a ring shape after extending completely, two adjacent layers of extending ends are in two concentric rings after extending completely, and the inner circle of the large ring is coincided with the outer circle of the small ring.

Above-mentioned neonate's nostril lighting device, the inner ring size of annular printing opacity shielding plate can be adjusted, realizes through following structure:

the outer ring of the annular light-transmitting baffle plate is provided with n telescopic rods, the end part of each telescopic rod is provided with a fan-shaped structure, and the central angle of the fan-shaped structure is 360 degrees/n.

Above neonate's nostril lighting device, annular printing opacity shielding plate can remove along the optical axis direction between pinhole and ellipsoid speculum, realizes through following structure:

the side wall of the light-transmitting shielding plate is symmetrically provided with two supporting ends, the shell is symmetrically provided with two second through grooves, and the supporting ends extend out of the second through grooves; the outer shell is sleeved with threads, the annular rotating end moves back and forth through threaded rotation on the outer wall of the outer shell, a notch is formed in the end face of the annular rotating end, the inner surface of the notch is in interference fit with the outer ring of the bearing, an annular connecting end is installed on the inner ring of the bearing in interference fit, and the annular connecting end is connected with the supporting end.

Has the advantages that:

firstly, in the neonatal nostril illuminating device, because the objective lens, the pinhole, the annular light-transmitting baffle plate and the ellipsoidal reflector are sequentially arranged in the shell along the light propagation direction, the number of elements is small, and the neonatal nostril illuminating device has the technical advantage of simple structure;

secondly, in the neonatal nostril illuminating device, because the annular light-transmitting shielding plate is arranged, the annular illuminating light is provided, only irradiates the side wall of the nostril and does not irradiate the inside of the nostril, and compared with a circular illuminating light beam, the neonatal nostril illuminating device has the technical effect of illuminating the side wall of the nostril and also has the effect of protecting nasal mucosa inside the nostril;

thirdly, in the neonatal nostril illuminating device, the annular light-transmitting shielding plate can move between the needle hole and the ellipsoidal reflector along the optical axis direction, and the sizes of the outer ring and the inner ring of the annular light-transmitting shielding plate can be adjusted, so that the sizes of the outer ring and the inner ring can be changed by moving the annular light-transmitting shielding plate, the diameters, the illuminating angles and the illuminating intensity of the inner ring and the outer ring of the annular illuminating light beam can be adjusted, the neonatal nostril illuminating device can be suitable for infants with different nose shapes and sizes, and the application range of the neonatal nostril illuminating device is enlarged;

fourthly, in the neonatal nostril illuminating device, as the ellipsoidal reflector is adopted for light beam convergence, compared with the traditional lens convergence mode, the reflector can solve the aberration problem of the lens in principle, realize that no stray light irradiates the eyes of the neonate, and effectively avoid the problem that the nasal shit digging work cannot be carried out because the baby is awake from a deep sleep due to the divergent light beams or the convergent light beams with aberration;

fifth, in the neonatal nostril illuminating apparatus of the present invention, the conjugate property of the two focuses of the ellipsoidal reflector is fully utilized, that is, the property that the light beam incident from the far focus can also exit from the far focus is utilized, and compared with a lens structure or a plane reflector or a spherical reflector, the neonatal nostril illuminating apparatus has the beneficial effect of large-angle illumination, so that the illuminating light beam is cut off at the side wall of the nostril, and the nasal mucosa inside the nostril is further protected.

Drawings

Fig. 1 is a schematic structural diagram of a neonatal nostril illuminating device of the invention.

FIG. 2 is a schematic view of the relationship between the annular light-transmissive shield and the protruding end.

Fig. 3 is a schematic view of the positional relationship of the protruding ends between different layers.

FIG. 4 is a view showing the connection relationship between the outer ring, the telescoping rod and the fan-shaped structure.

Fig. 5 is a schematic structural view of the annular light-transmitting shutter moving in the optical axis direction.

In the figure: the device comprises an objective lens 1, a pinhole 2, an annular light-transmitting shielding plate 3, a protruding end 31, a telescopic rod 32, a fan-shaped structure 33, a supporting end 34, an annular rotating end 35, a bearing 36, an annular connecting end 37, an ellipsoidal reflector 4 and a shell 5.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The following describes in further detail specific embodiments of the present invention with reference to the accompanying drawings.

Detailed description of the preferred embodiment

The nostril illuminating device for the neonate of the embodiment has the structure that the schematic diagram is shown in fig. 1, and an objective lens 1, a pinhole 2, an annular light-transmitting shielding plate 3 and an ellipsoidal reflector 4 are sequentially arranged in a shell 5 along the light propagation direction; the focal position of the objective lens 1 is superposed with the far focal position of the ellipsoidal reflector 4, and a pinhole 2 is arranged at the superposed position; the parallel light beams irradiate the objective lens 1 along the direction of the optical axis to form a point light source at the position of the pinhole 2, and the point light source is reflected to a near-focus position by the ellipsoidal reflector 4 and converged into a point light spot; annular printing opacity shielding plate 3 can move along the optical axis direction between pinhole 2 and ellipsoidal reflecting mirror 4, and annular printing opacity shielding plate 3's outer loop and inner ring size can be adjusted.

Detailed description of the invention

The neonatal nostril illuminating device of the present embodiment further defines that the size of the outer ring of the annular light-transmitting shielding plate 3 can be adjusted on the basis of the first specific embodiment, and is realized by the following structure:

the annular light-transmitting shielding plate 3 is provided with a plurality of layers of extending ends 31 on the outer ring, each layer of extending end 31 is in a ring shape after extending completely, two adjacent layers of extending ends 31 are in two concentric rings after extending completely, and the inner circle of the large ring is superposed with the outer circle of the small ring.

The relationship between the annular transparent shielding plate 3 and the protruding end 31 in the present embodiment is shown in FIG. 2; it should be noted that the figure shows the protruding end 31 installed on the outer ring of the annular light-transmitting shielding plate 3, which has 2 layers, and is shown by a solid line before protruding and a dotted line after protruding.

The positional relationship of the protruding end 31 between the different layers is shown in fig. 3. The extension end 31 is connected to the outer ring through a connecting rod, and the extension end 31 can be extended and retracted in the radial direction through a telescopic rod; in order to avoid interference of the various elements, a person skilled in the art can, through limited experiments or reasonable logical reasoning, derive the dimensional and positional parameters of the various elements, design the corresponding structures, and the parameters and specific structures can be implemented by combining fig. 2 and 3 and the professional knowledge of the person skilled in the art, and therefore will not be described in detail in this application.

Detailed description of the preferred embodiment

The neonatal nostril illuminating device of the present embodiment further defines that the size of the inner ring of the annular light-transmitting shielding plate 3 can be adjusted on the basis of the first specific embodiment, and is realized by the following structure:

n telescopic rods 32 are arranged on the outer ring of the annular light-transmitting baffle plate 3, a fan-shaped structure 33 is arranged at the end part of each telescopic rod 32, and the central angle of each fan-shaped structure 33 is 360 degrees/n.

The connection between the outer ring, the telescoping rod 32 and the fan-shaped structure 33 is shown in figure 4. It should be noted that, in fig. 4, the number of the telescopic rods 32 is 4, which causes the inner ring to be reduced to a square shape when the inner ring is minimum; however, as the number of telescoping rods 32 increases, the inner ring gradually approaches a circular shape at the minimum, so that the "ring" concept of the annular light-transmitting shutter 3 still holds.

Detailed description of the invention

The neonatal nostril illuminating device of the present embodiment further defines, on the basis of the first embodiment, the second embodiment or the third embodiment, that the annular light-transmitting shielding plate 3 can move between the pinhole 2 and the ellipsoidal reflector 4 along the optical axis direction, and is implemented by the following structure:

the side wall of the annular light-transmitting shielding plate 3 is symmetrically provided with two supporting ends 34, the shell 5 is symmetrically provided with two second through grooves, and the supporting ends 34 extend out of the second through grooves; the shell 5 is sleeved with threads, the annular rotating end 35 moves back and forth through threaded rotation on the outer wall of the shell 5, a notch is formed in the end face of the annular rotating end 35, the inner surface of the notch is in interference fit with the outer ring of the bearing 36, an annular connecting end 37 is installed on the inner ring of the bearing 36 in interference fit, and the annular connecting end 37 is connected with the supporting end 34.

The structure for moving the annular light-transmitting shielding plate 3 in the optical axis direction is shown in fig. 5, and the annular light-transmitting shielding plate 3 can be moved in the optical axis direction by screwing the annular rotating end 35.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the invention.

Claims

1. The neonatal nostril illuminating device with a movable annular light-transmitting shielding plate structure is characterized in that an objective lens (1), a pinhole (2), an annular light-transmitting shielding plate (3) and an ellipsoidal reflector (4) are sequentially arranged in a shell (5) along the light propagation direction; the focal position of the objective lens (1) is superposed with the far focal position of the ellipsoidal reflector (4), and a pinhole (2) is arranged at the superposed position; the parallel light beams irradiate the objective lens (1) along the direction of an optical axis to form a point light source at the position of the pinhole (2), and the point light source is reflected to a position close to a focus point by the ellipsoidal reflector (4) and converged into a point light spot; the annular light-transmitting baffle plate (3) can move between the pinhole (2) and the ellipsoidal reflector (4) along the optical axis direction, and the sizes of an outer ring and an inner ring of the annular light-transmitting baffle plate (3) can be adjusted;

annular printing opacity shielding plate (3) can move along the optical axis direction between pinhole (2) and ellipsoidal reflecting mirror (4), realizes through following structure: two support ends (34) are symmetrically arranged on the side wall of the light-transmitting shielding plate (3), two second through grooves are symmetrically arranged on the shell (5), and the support ends (34) extend out of the second through grooves; the outer shell (5) is sleeved with threads, the annular rotating end (35) moves back and forth through thread rotation on the outer wall of the outer shell (5), a notch is formed in the end face of the annular rotating end (35), the inner surface of the notch is in interference fit with the outer ring of the bearing (36), an annular connecting end (37) is installed on the inner ring of the bearing (36) in interference fit, and the annular connecting end (37) is connected with the supporting end (34).