CN210056039U

CN210056039U - Sensor finger stall for monitoring vital signs

Info

Publication number: CN210056039U
Application number: CN201920183162.1U
Authority: CN
Inventors: 叶茂林
Original assignee: Medical Electronics Ltd Co Of Co Of Us Of Shenzhen
Current assignee: Medical Electronics Ltd Co Of Co Of Us Of Shenzhen
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2020-02-14
Anticipated expiration: 2029-02-01

Abstract

A sensor finger cuff for vital sign monitoring includes a housing, and a finger cuff extending through the housing. At least two light blocking plates are arranged on the pipe wall of the first pipe orifice. All the light barriers are arranged around the axis of the finger sleeve in a staggered mode, so that the light barriers can prevent external light from being emitted into the finger sleeve. The light barrier of the utility model is arranged in the first pipe orifice in a staggered way, thus effectively blocking the light from entering the thimble tube from the first pipe orifice; the utility model uses the limiting convex rib to effectively prevent the tested finger from swinging and shifting at the second pipe orifice; the structure of the second mouth of pipe "the top is long at the bottom short" avoids appearing just to the centre gripping to being surveyed the finger, eliminates the oppression to the artery blood vessel in indicating to ensure vital sign monitoring data's accuracy, and promote the use experience of being surveyed the person.

Description

Sensor finger stall for monitoring vital signs

Technical Field

The utility model relates to a wearing formula sensor especially relates to a wearing formula sensor for medical equipment.

Background

Devices for vital sign monitoring, such as blood oxygen monitoring devices, are most often configured with a sensor cuff that fits over the finger of the monitored person. The sensor finger cot mostly acquires data through a photoelectric test method, so that a finger to be detected needs to be located in a sealed and lightproof space for monitoring. The prior art sensor finger cot comprises a shell and a finger cot tube penetrating through the shell, wherein a front cot tube opening close to a fingertip and a rear cot tube opening close to a finger root are formed on the shell. In order to prevent external light from entering the finger sleeve from the front sleeve opening, the front sleeve opening is provided with the shading structure, however, when a finger is inserted into the finger sleeve, the finger sleeve is easily opened to expand and deform the front sleeve opening, so that the shading structure can not completely shield the external light from entering the finger sleeve, and the accuracy of vital sign monitoring data is influenced.

The back casing mouth of prior art sensor dactylotheca is most wider, and it makes the quilt survey finger swing aversion at back casing mouth because of hand removal or cable pull easily when the quilt survey finger inserts the sensor dactylotheca and carries out vital sign monitoring, influences vital sign monitoring result.

As shown in fig. 7, the top end and the bottom end of the rear sleeve opening 9 of the sensor finger sleeve in the prior art are arranged oppositely, when the detected finger 7 is inserted into the finger sleeve, the rear sleeve opening 9 forms a clamping force S on the detected finger 7, the clamping force S presses the artery blood vessel in the finger, the perfusion degree is affected, the signal intensity is weakened, and the vital sign monitoring result is affected; and when the wearing time of the sensor finger cot is long, the tested finger 7 is easy to feel like numbness due to the clamping force S, so that uncomfortable experience is caused to a patient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in avoiding prior art's weak point and providing one kind and avoiding fingertip portion sleeve opening light leak to appear, prevents to be surveyed the finger swing and shifts, eliminates the sensor dactylotheca that is used for the vital sign monitoring to being surveyed the vascular oppression of finger.

The utility model provides a technical problem can realize through adopting following technical scheme:

a sensor finger cot for vital sign monitoring is designed and manufactured, and comprises a shell made of flexible materials and a finger cot tube penetrating through the shell and used for inserting a finger to be detected. The pipe orifice of the thimble tube close to the fingertip of the measured finger is a first pipe orifice, and the pipe orifice far away from the fingertip of the measured finger is a second pipe orifice. At least two light blocking plates are arranged on the pipe wall of the first pipe orifice. The included angle between the light barrier and the axis of the finger sleeve is not less than 45 degrees and not more than 135 degrees. All the light barriers are arranged around the axis of the finger sleeve in a staggered mode, so that the light barriers can prevent external light from being emitted into the finger sleeve.

Specifically, two light blocking plates are arranged at the first pipe orifice. The light barrier is perpendicular to the axis of the finger sleeve. Any of the light barriers can cover more than half the area of the first nozzle. One light barrier is arranged on the top pipe wall of the first pipe orifice, and the other light barrier is arranged on the bottom pipe wall of the first pipe orifice.

At least two limiting convex ribs arranged around the measured finger are arranged on the tube wall of the second tube opening, and the measured finger is limited to swing and shift in the finger sleeve by the aid of the limiting convex ribs.

Specifically, two limiting convex ribs are arranged on the top pipe wall and/or the bottom pipe wall of the second pipe orifice.

In order to prevent the compression of the internal artery blood vessel, the projection of the second pipe orifice on the horizontal plane is elliptical, and the distance between the projection point of the top end of the second pipe orifice on the horizontal plane and the projection point of the fingertip of the measured finger on the horizontal plane is larger than the distance between the projection point of the bottom end of the second pipe orifice on the horizontal plane and the projection point of the fingertip of the measured finger on the horizontal plane.

In order to prevent the tested finger from swinging and shifting in the finger sleeve, the tube wall of the finger sleeve is processed into a bright surface with a non-fog surface, a non-matte surface and a non-frosted surface so as to increase the friction coefficient between the tube wall of the finger sleeve and the tested finger.

Compared with the prior art, the utility model discloses the technical effect of "a sensor dactylotheca for vital sign monitoring" lies in:

the light barriers are arranged at the first pipe orifices in a staggered manner, so that even if the first pipe orifices are expanded and deformed due to the fact that the finger sleeves are unfolded, light can still be effectively prevented from entering the finger sleeves from the first pipe orifices, and the accuracy of vital sign monitoring data is ensured;

the limiting convex ribs can effectively prevent the tested finger from swinging and shifting at the second pipe orifice, and the accuracy of vital sign monitoring data is ensured;

the structure of the second mouth of pipe "the top is long at the bottom short" avoids appearing just to the centre gripping to being surveyed the finger, eliminates the oppression to the artery blood vessel in indicating, ensures vital sign monitoring data's accuracy to promote the use experience of being surveyed the person.

Drawings

FIG. 1 is a schematic front perspective view of a preferred embodiment of the "sensor finger cuff for vital signs monitoring" of the present invention;

FIG. 2 is a schematic front perspective left view of the preferred embodiment;

FIG. 3 is a schematic front perspective right view of the preferred embodiment;

FIG. 4 is a schematic orthographic longitudinal section of the preferred embodiment;

FIG. 5 is a schematic isometric projection of the preferred embodiment;

FIG. 6 is a diagram illustrating the force applied to the finger 7 under test according to the preferred embodiment;

fig. 7 is a schematic diagram of the stress situation of the measured finger 7 of the prior art sensor finger cot.

Detailed Description

The following is a further detailed description of preferred embodiments with reference to the accompanying drawings.

The present invention provides a sensor finger cuff for vital signs monitoring, as shown in fig. 1 to 6, comprising a housing 4 made of a flexible material, and a finger cuff 3 extending through the housing 4 for inserting a measured finger 7, as shown in fig. 1, 4 and 5, the cuff of the finger cuff 3 near the fingertip of the measured finger 7 is a first cuff 31, the cuff far away from the fingertip of the measured finger 7 is a second cuff 32, the housing 4 is made of a flexible and elastic material such as silicone, as shown in fig. 4, the sensor finger cuff further comprises a sensor mounted in the housing 4, and a wire 6 for electrically connecting the sensor and a vital signs monitoring device, at least one sensor chamber 5 for mounting the sensor is provided in the housing 4, the sensor chamber 5 communicates with the finger cuff 3 by means of a light transmitting window formed in the wall of the finger cuff 3, the light-blocking tube 3, the finger cuff is arranged parallel to the finger cuff 3 axis, as shown in fig. 7, the light-blocking tube axis 2, the finger cuff is arranged parallel to the light-blocking tube axis, as shown in fig. 7, the light-blocking tube cross section of the finger cuff 2, the finger cuff 3 is arranged parallel to the light-blocking tube, as shown in fig. 7, the light-blocking tube-light-blocking tube-in the light-blocking tube-light-blocking tube-light-blocking tube-blocking tube-wall of the light-blocking tube-wall of the light-tube-blocking tube-wall of the light-wall.

In the preferred embodiment of the present invention, as shown in fig. 4, two light-blocking plates 1 are disposed at the first pipe opening 31. Both light-blocking panels 1 are perpendicular to the axis O1O2 of finger cuff 3. Any of the light barriers 1 can cover more than half the area of the first nozzles 31. The two light barriers 1 are staggered around the axis O1O2 of the finger sleeve 3, that is, the light barriers 1 are respectively arranged at the mutually opposite positions of the tube wall of the finger sleeve 3, and the two light barriers 1 are stacked. In the preferred embodiment of the present invention, as shown in fig. 4, a light barrier 1 is disposed on the top wall of the first pipe opening 31, and another light barrier 1 is disposed on the bottom wall of the first pipe opening 31.

The utility model discloses set up two at least spacing protruding muscle 2 around being surveyed finger 7 and setting up on the pipe wall of second mouth of pipe 32, be surveyed finger 7 with the help of spacing protruding muscle 2 restriction and swing the aversion in dactylotheca pipe 3 to ensure vital sign monitoring data's accuracy.

The utility model discloses preferred embodiment, as shown in fig. 3, set up two spacing protruding muscle 2 on the bottom pipe wall of second mouth of pipe 31, the scheme that can also adopt is, sets up two spacing protruding muscle 2 on the top pipe wall of second mouth of pipe 31. In order to obtain a better limiting effect on the measured finger 7, two limiting convex ribs 2, namely four limiting convex ribs 2, can be arranged on the top pipe wall and the bottom pipe wall of the second pipe orifice 31 respectively.

To prevent the second orifice 32 from compressing the internal artery of the finger, the preferred embodiment of the present invention, as shown in fig. 4, regardless of the curve structure of the second orifice 32, the second orifice 32 should be disposed along an inclined slope, that is, the angle β between the line AB connecting the two truncated end points A and B of the second orifice 32 and the axis O1O2 of the finger cuff 3 pointing to the fingertip direction of the measured finger 7 should be greater than 90 degrees and less than 180 degrees, taking the vertical plane of the axis O1O2 of the finger cuff 3 as a cross section, as shown in fig. 5, the structure can also be expressed as that the projection of the second orifice 32 on the horizontal plane P is an oval orifice T, and the distance between the projection point A1 of the top end A of the second orifice 32 on the horizontal plane and the projection point F1 of the fingertip F of the measured finger 7 on the horizontal plane is greater than the distance between the projection point B1 of the bottom end B of the second orifice 32 on the horizontal plane and the fingertip F1 of the measured finger 7 on the horizontal plane, thereby ensuring that the second orifice 32 is not blocked by the pressure of the measured finger 7, and that the measured finger is not pressed against the long-tip of the finger 32, as shown in the graph, thereby ensuring that the pressure of the long-measured finger 7-in-and that the long-hand-finger-7-hand-7 structure is not blocked by the pressure-7-hand-.

The utility model discloses preferred embodiment, dactylotheca pipe 3's pipe wall is processed into the bright surface of non-fog face, non-dull plain noodles and non-frosting to increase dactylotheca pipe 3's pipe wall and surveyed the coefficient of friction of pointing 7, further prevent to be surveyed and point 7 and swing the aversion in dactylotheca pipe 3.

Claims

1. A sensor finger cot for vital sign monitoring comprises a shell made of flexible materials and a finger cot tube penetrating through the shell and used for inserting a measured finger; the pipe orifice of the finger sleeve close to the fingertip of the measured finger is a first pipe orifice, and the pipe orifice far away from the fingertip of the measured finger is a second pipe orifice; the method is characterized in that:

at least two light blocking plates are arranged on the pipe wall of the first pipe orifice;

the included angle between the light barrier and the axis of the finger sleeve is not less than 45 degrees and not more than 135 degrees;

all the light barriers are arranged around the axis of the finger sleeve in a staggered mode, so that the light barriers can prevent external light from being emitted into the finger sleeve.

2. The sensor finger cuff for vital sign monitoring of claim 1, wherein:

two light blocking plates are arranged at the first pipe orifice;

the light barrier is vertical to the axis of the finger sleeve;

any light barrier can cover more than half of the area of the first nozzle;

one light barrier is arranged on the top pipe wall of the first pipe orifice, and the other light barrier is arranged on the bottom pipe wall of the first pipe orifice.

3. The sensor finger cuff for vital sign monitoring according to claim 1 or 2, wherein:

at least two limiting convex ribs arranged around the finger to be detected are arranged on the pipe wall of the second pipe orifice,

the measured finger is limited to swing and shift in the finger sleeve by the limit convex rib.

4. The sensor finger cuff for vital sign monitoring of claim 3, wherein:

two limiting convex ribs are arranged on the top pipe wall and/or the bottom pipe wall of the second pipe orifice.

5. The sensor finger cuff for vital sign monitoring according to claim 1 or 2, wherein:

the projection of the second orifice onto the horizontal plane is elliptical, and,

the distance between the projection point of the top end of the second pipe orifice on the horizontal plane and the projection point of the fingertip of the measured finger on the horizontal plane is greater than the distance between the projection point of the bottom end of the second pipe orifice on the horizontal plane and the projection point of the fingertip of the measured finger on the horizontal plane.

6. The sensor finger cuff for vital sign monitoring of claim 5, wherein:

the tested finger inserted into the finger sleeve is limited to swing and move in the finger sleeve by the limit convex rib.

7. The sensor finger cuff for vital sign monitoring of claim 6, wherein:

8. The sensor finger cuff for vital sign monitoring according to claim 1 or 2, wherein:

the pipe wall of the finger sleeve is processed into a non-matte surface, a non-matte surface and a non-frosted surface to increase the friction coefficient between the pipe wall of the finger sleeve and the measured finger.

9. The sensor finger cuff for vital sign monitoring of claim 5, wherein: