CN113796857A - Artery and vein blood oxygen monitor - Google Patents

Abstract

The invention provides an arteriovenous blood oxygen monitor, which belongs to the technical field of medical equipment and comprises: a host; the vein detection assembly is provided with a detection patch suitable for being attached to a vein part of a human body; the vein detection assembly is connected with the host through a second connecting wire; the artery probe finger sleeve is connected with the host through a first connecting wire; the artery probe finger sleeve is provided with at least one opening at one end, and an annular air bag is arranged at the opening end of the artery probe finger sleeve; the arteriovenous oxygen monitor can simultaneously measure the arterial oxygen saturation and the venous oxygen saturation, and the annular finger sleeve can adjust the fixing strength of the arterial probe finger sleeve and the finger and adjust according to the condition and the requirement of a patient, so that the discomfort of the patient in the process of wearing the fixed arterial probe finger sleeve is reduced, and the comfort of the patient in the monitoring process is enhanced.

Description

Artery and vein blood oxygen monitor

Technical Field

The invention relates to the technical field of medical equipment, in particular to an arteriovenous blood oxygen monitor.

Background

The blood oxygen saturation is the percentage of the volume of oxygenated hemoglobin bound by oxygen in blood to the total volume of the bindable hemoglobin, i.e. the concentration of blood oxygen in blood, and is an important physiological parameter of the respiratory system and circulatory system of a human body and a main parameter reflecting the oxygen content in blood. Normally, the blood oxygen saturation should not be lower than 94%, and the oxygen supply is insufficient under 94%, and the medical condition that the blood oxygen saturation is less than 90% is defined as the standard of hypoxemia. When the blood oxygen concentration in blood is too low, it will directly affect the normal metabolism of cells and seriously threaten human life, so real-time monitoring of the blood oxygen concentration in artery is very important in clinical rescue.

In the monitoring process, the artery probe finger sleeve is fixed at the finger tip of a patient, the finger is used as a transparent container for containing hemoglobin, red light with the wavelength of 660nm and near infrared light with the wavelength of 940nm are used as incident light sources, and the light transmission intensity passing through a tissue bed is measured to calculate the concentration of the hemoglobin and the degree of blood oxygen saturation.

In the prior art, the artery probe finger sleeves are fixed on fingers through elastic clamps, and the clamping force of the fingers is not controllable, so that after the artery probe finger sleeves are clamped on the fingers for a long time, the fingers are uncomfortable, and the fingers need to be replaced at intervals for fixing.

Disclosure of Invention

Therefore, the invention aims to overcome the defect that the finger is uncomfortable due to uncontrollable clamping force of an elastic clamp on an artery probe finger sleeve in the prior art, and provides the arteriovenous blood oxygen detector.

In order to solve the technical problem, the invention provides an arteriovenous blood oxygen monitor, which comprises:

a host;

the vein detection assembly is provided with a detection patch suitable for being attached to a vein part of a human body; the vein detection assembly is connected with the host through a second connecting wire;

the artery probe finger sleeve is connected with the host through a first connecting wire; the artery probe finger sleeve is provided with at least one opening at one end, and an annular air bag is arranged at the opening end of the artery probe finger sleeve;

the annular air bag is provided with an air inlet and an air outlet, the air inlet is suitable for being connected with an inflating device, and the air outlet is provided with a deflation adjusting device.

Preferably, the vein detection assembly includes:

the excitation module is used for enhancing the signal intensity of venous blood;

the signal acquisition module is used for acquiring an excitation signal and separating an artificially added excitation signal and a pulse wave signal generated by heart pumping blood;

and the calculation module is used for obtaining the venous blood oxygen saturation through the venous blood signal contained in the artificial addition excitation signal.

As a preferred scheme, the artery probe finger sleeve is provided with a soft finger sleeve, and the soft finger sleeve is connected with the annular air bag; the soft finger sleeve is provided with a detection space suitable for placing the front end of a finger; the detection space is communicated with the middle space of the annular air bag; a blood oxygen detection sensor device is arranged in the soft finger sleeve.

Preferably, the annular balloon includes:

one end of the outer layer is connected with the outer surface of the soft finger sleeve;

one end of the inner layer is connected with the inner surface of the soft finger sleeve; the other end is connected with the outer layer; the inner layer is enclosed into an annular accommodating space which is suitable for being sleeved on the fingers;

and a closed inflation space is formed between the inner layer and the outer layer.

Preferably, the outer layer is made of a rigid material.

Preferably, the air inlet and the air outlet are arranged on the outer layer.

Preferably, the air inlet is provided with a one-way valve for communicating from the atmosphere to the interior of the annular air bag.

As a preferred scheme, the inflation device is a latex ball; the latex ball is connected with the air inlet through a connecting pipe.

Preferably, the deflation adjustment device comprises:

the support column is sleeved in the air outlet in a sliding manner; the outer diameter of the support column is smaller than the inner diameter of the air outlet;

one end of the conical rubber plug is arranged in the annular air bag and is suitable for being clamped with the air outlet, and the other end of the conical rubber plug extends towards the air outlet and is connected with the supporting column;

the round cap is connected with one end of the support column far away from the air outlet; the diameter of the circular cap is larger than the inner diameter of the air outlet;

the elastic piece is sleeved on the support column, one end of the elastic piece is abutted with the outer layer of the annular air bag, and the other end of the elastic piece is abutted with the circular cap; the elastic piece has the drive power that drives circular cap and keep away from the gas outlet and make conical rubber buffer and gas outlet joint.

Preferably, the material of the inner layer and/or the outer layer is black.

Preferably, the method further comprises the following steps: the middle part of the wrist strap is connected with the first connecting wire; the two end parts of the wrist strap are respectively provided with a magic tape; the magic tapes at the two ends of the wrist strap are matched with each other.

The technical scheme of the invention has the following advantages:

1. the invention provides an arteriovenous blood oxygen monitor, comprising: the system comprises a host, an artery probe finger sleeve and a vein detection assembly; the vein detection assembly is provided with a detection patch suitable for being attached to a vein part of a human body; the vein detection assembly is connected with the host through a second connecting wire; an annular air bag is arranged at the opening end of the artery probe finger sleeve; the annular air bag is enclosed into an annular accommodating space suitable for being sleeved with fingers, and the volume of the annular air bag is changed by filling gas into the annular air bag, so that the volume of the annular accommodating space is changed;

the function of simultaneously measuring the arterial blood oxygen saturation and the venous blood oxygen saturation can be realized through the matching of the vein detection assembly and the artery detection finger sleeve;

a finger is stretched into the annular accommodating space, and gas is filled into the annular air bag, so that the annular air bag is attached to the finger, fixation with the finger is realized, and the attaching force of the annular air bag and the finger can be adjusted according to needs; the fixed dynamics that this device can adjust artery probe dactylotheca and point is adjusted according to patient's the condition and needs, reduces patient's discomfort at fixed artery probe dactylotheca in-process, and the reinforcing is at the monitoring in-process, patient's comfort level.

2. The arteriovenous blood oxygen monitor provided by the invention is characterized in that the outer layer is provided with an air inlet and an air outlet; the gas is convenient to be filled and discharged; the air inlet is detachably connected with the inflating device, and after the annular air bag is filled with air, the inflating device is detached, so that the structure is simple, and a plurality of facilities do not need to be placed around a patient.

3. According to the arteriovenous blood oxygen monitor provided by the invention, a one-way valve is arranged on the air inlet; so that the gas can only enter the annular air bag at the gas inlet and can not escape; so that no gas can escape from the connecting pipe in the process of separating from the annular air bag, and the fixation of the artery probe finger sleeve and the finger is ensured.

4. The arteriovenous blood oxygen monitor provided by the invention has the advantages that the outer layer is made of rigid materials; in the process of inflating gas into the inflation space, the annular air bag only expands towards the direction of the annular accommodating space in the process of changing the volume, so that the fixing speed of the annular finger sleeve and the fingers is increased.

5. According to the arteriovenous blood oxygen monitor provided by the invention, the inflating device is a latex ball, can be completed by one hand of a patient, and is convenient to adjust.

6. The invention provides an arteriovenous blood oxygen monitor, the deflation adjusting device comprises: the device comprises a support column, a conical rubber plug, a round cap and an elastic piece; the support column drives the conical rubber plug to be far away from the gas outlet by pressing the round cap to overcome the biasing force of the elastic piece, and the gas outlet is not blocked, so that gas escapes from a gap between the support column and the gas outlet, and the gas is exhausted; the mode can realize gradual deflation, and can adjust the amount of gas in the inflation space.

7. According to the arteriovenous blood oxygen monitor provided by the invention, the inner layer and/or the outer layer are made of black materials; the incoming light is prevented from affecting the detection of the detection sensor.

8. The invention provides an arteriovenous blood oxygen monitor, wherein a wrist strap is arranged on a first connecting wire; the wrist strap is sleeved on the wrist, so that the artery probe finger sleeve is prevented from slipping to the ground after falling off from the fingers, and the detection sensor is prevented from being damaged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of the arteriovenous blood oxygen monitor of the present invention.

Fig. 2 is a front cross-sectional view of an arterial probe cuff of the present invention.

Fig. 3 is a right side view of the arterial probe cuff of the present invention.

FIG. 4 is a schematic view of the structure of the deflation adjustment device of the present invention.

Description of reference numerals:

1. a soft finger stall; 2. a light emitting unit; 3. a light source receiving unit; 4. detecting a space; 5. an annular accommodation space; 6. an air-filled space; 7. a shade cloth; 8. an inner layer; 9. an outer layer; 10. a conical rubber plug; 11. a support pillar; 12. a spring; 13. a circular cap; 14. a host; 15. latex balls; 16. an annular air bag; 17. an air inlet; 18. an air outlet; 19. a vein detection assembly.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The arteriovenous blood oxygen monitor that this embodiment provided, as shown in fig. 1, includes: themain machine 14, an artery probe finger sleeve and avein detection assembly 19;

the vein detection assembly is provided with a detection patch suitable for being attached to a vein part of a human body; the vein detection assembly is connected with the host through a second connecting wire; the vein detection assembly includes: the excitation module is used for enhancing the signal intensity of venous blood; the signal acquisition module is used for acquiring an excitation signal and separating an artificially added excitation signal and a pulse wave signal generated by heart pumping blood; and the calculation module is used for obtaining the venous blood oxygen saturation through the venous blood signal contained in the artificial addition excitation signal.

Anannular air bag 16 is arranged at the opening end of the artery probe finger sleeve; theannular air bag 16 encloses an annularaccommodating space 5 suitable for being sleeved with fingers, and the volume of theannular air bag 16 is changed by filling air into theannular air bag 16, so that the volume of the annularaccommodating space 5 is changed;

a finger is stretched into the annularaccommodating space 5, and gas is filled into theannular air bag 16, so that theannular air bag 16 is attached to the finger, fixation with the finger is realized, and the attaching force of theannular air bag 16 and the finger can be adjusted according to needs; the fixed dynamics that this device can adjust artery probe dactylotheca and point is adjusted according to patient's the condition and needs, reduces patient's discomfort at fixed artery probe dactylotheca in-process, and the reinforcing is at the monitoring in-process, patient's comfort level.

As shown in fig. 2, asoft finger cot 1 is arranged at the front end of the artery probe finger cot, adetection space 4 for accommodating the front end of a finger is arranged in thesoft finger cot 1, a blood oxygen detection sensor device is further arranged in thedetection space 4, the blood oxygen detection sensor device comprises alight emitting unit 2 for emitting light and a lightsource receiving unit 3 for receiving light, and thelight emitting unit 2 and the lightsource receiving unit 3 are oppositely arranged on the side wall of an annularaccommodating space 5; when the blood oxygen content of a patient needs to be detected, thelight emitting unit 2 emits light and irradiates the finger, the lightsource receiving unit 3 can receive a light source signal passing through the finger and then converts the light source signal into an electric signal, and in order to ensure the receiving effect, the emitting surface of thelight emitting unit 2 is parallel to the receiving surface of the lightsource receiving unit 3.

A first connecting wire of a power supply of the sensor device directly penetrates out of thesoft finger sleeve 1, thesoft finger sleeve 1 is made of rubber, and a lead with an insulating surface is integrally produced during production.

The front end of thesoft finger sleeve 1 is provided with an air hole for ventilation, so that the situation that the fingers are not ventilated inside to generate stuffiness is prevented; meanwhile, in order to prevent light from entering the air holes and affecting the measurement result,black shading cloth 7 is arranged in the air holes and used for shading the light.

The other end of thesoft finger sleeve 1 is provided with an opening, and the opening end is provided with anannular air bag 16; the interior of theannular air bag 16 is communicated with the opening of thesoft finger sleeve 1, theannular air bag 16 is annular, and an annularaccommodating space 5 for placing fingers is formed in the middle of the annular air bag; thedetection space 4 is communicated with the annularaccommodating space 5;

as shown in fig. 3, theannular airbag 16 has aninner layer 8 and anouter layer 9, and aninflation space 6 is provided between theinner layer 8 and theouter layer 9; anair inlet 17 and anair outlet 18 are arranged on theouter layer 9 of theannular air bag 16, air is filled through theair inlet 17, the volume of theinflation space 6 is gradually increased along with the filling of the air, so that the annularaccommodating space 5 is gradually reduced, the clamping of theinner layer 8 of theannular air bag 16 to the finger is realized, and the fixing of the artery probe finger sleeve on the finger is realized; meanwhile, the amount of gas filled in thegas filling space 6 can be adjusted, and the size of the annularaccommodating space 5 is adjusted, so that the clamping force on fingers is adjusted, and the artery probe finger sleeve can also adapt to fingers of different people.

A one-way valve is arranged on theair inlet 17, and the flow direction of the one-way valve is the direction from the outside to theinflation space 6 of theannular air bag 16; the phenomenon that gas escapes from the inflatingspace 6 during the dismantling process after theannular airbag 16 is inflated by the inflator is prevented.

Theouter layer 9 is made of a metal material, and theinner layer 8 is made of a soft rubber material; in the inflation process, theouter layer 9 cannot deform, theinner layer 8 extends into the annularaccommodating space 5, the fingers are clamped, and the artery probe finger sleeve is fixed on the fingers.

Theinner layer 8 and theouter layer 9 are made of black materials, so that the effect of shading is achieved, and the detection effect is prevented from being influenced.

As an alternative, theinner layer 8 is black alone, and theinner layer 8 can also block light by being attached to fingers during the fixing process.

Theair inlet 17 is connected with an inflating device in the inflating process; the inflation device is alatex ball 15, and thelatex ball 15 is connected with theair inlet 17 through a connecting pipe. Thelatex ball 15 is used as an air charging device, so that one hand of a patient can be charged with air, and the operation is convenient.

As shown in fig. 4, an air discharge adjusting device is arranged on theair outlet 18, specifically, aconical rubber plug 10 is clamped inside theair outlet 18, theconical rubber plug 10 is connected with one end of a supportingcolumn 11, one end of the supportingcolumn 11 extends outwards towards theair outlet 18, the supportingcolumn 11 is sleeved with aspring 12, one end of thespring 12 abuts against theouter layer 9, and the other end abuts against acircular cap 13 at the upper end of the supportingcolumn 11; thespring 12 has a driving force which makes thecircular cap 13 away from theouter layer 9, so that theconical rubber plug 10 abuts on theair outlet 18, so that the gas in theinflation space 6 cannot escape; when the air needs to be discharged, thecircular cap 13 is pressed, so that theconical rubber plug 10 is far away from theair outlet 18, thesupport column 11 enters theair outlet 18, the diameter of thesupport column 11 is smaller than that of theair outlet 18, a gap is formed between thesupport column 11 and theair outlet 18, and the air in theinflation space 6 flows out.

A wrist strap is further arranged on the first connecting line, and the middle part of the wrist strap is connected with the first connecting line; the two end parts of the wrist strap are respectively provided with a magic tape; the magic tapes at the two ends of the wrist strap are matched with each other. The wrist strap is sleeved on the wrist, so that the artery probe finger sleeve is prevented from slipping to the ground after falling off from the fingers, and the detection sensor is prevented from being damaged.

Method of use and principles

Fingers extend into the annularaccommodating space 5 and thedetection space 4, press thelatex ball 15, inflate theinflation space 6 of theannular air bag 16, stop pressing thelatex ball 15 when sensing that the clamping force of theinner layer 8 of theannular air bag 16 is appropriate along with the fingers, start the blood oxygen detection sensor device, and realize monitoring; after the monitoring technology, thecircular cap 13 is pressed to overcome the biasing force of the elastic part, the supportingcolumn 11 drives theconical rubber plug 10 to be far away from theair outlet 18 and not to block theair outlet 18, so that air escapes from a gap between the supportingcolumn 11 and theair outlet 18, and exhaust is realized.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (10)

1. Arteriovenous blood oxygen monitor, its characterized in that includes:

a host (14);

the vein detection assembly is provided with a detection patch suitable for being attached to a vein part of a human body; the vein detection assembly is connected with the host through a second connecting wire;

the artery probe finger sleeve is connected with the host (14) through a first connecting line; the artery probe finger sleeve is provided with at least one opening at one end, and an annular air bag (16) is arranged at the opening end of the artery probe finger sleeve; the annular air bag (16) is provided with an air inlet (17) and an air outlet (18), the air inlet (17) is suitable for being connected with an inflating device, and the air outlet (18) is provided with an air discharge adjusting device.

2. The arteriovenous oximetry of claim 1, wherein the vein detection assembly comprises:

the excitation module is used for enhancing the signal intensity of venous blood;

the signal acquisition module is used for acquiring an excitation signal and separating an artificially added excitation signal and a pulse wave signal generated by heart pumping blood;

and the calculation module is used for obtaining the venous blood oxygen saturation through the venous blood signal contained in the artificial addition excitation signal.

3. The arteriovenous blood oxygen monitor of claim 1 wherein the arterial probe cuff has a soft cuff (1) connected to an annular balloon; the soft finger sleeve is provided with a detection space (4) suitable for placing the front end of a finger; the detection space (4) is communicated with the middle space of the annular air bag (16); a blood oxygen detection sensor device is arranged in the soft finger sleeve (1).

4. The arteriovenous blood oxygen monitor of claim 3 wherein the annular balloon (16) comprises:

one end of the outer layer (9) is connected with the outer surface of the soft finger sleeve (1);

one end of the inner layer (8) is connected with the inner surface of the soft finger sleeve (1); the other end is connected with the outer layer (9); the inner layer (8) encloses an annular accommodating space (5) suitable for being sleeved on the fingers;

a closed inflation space (6) is formed between the inner layer (8) and the outer layer (9).

5. The arteriovenous blood oxygen monitor of claim 4 wherein the outer layer (9) is made of a rigid material.

6. The arteriovenous blood oxygen monitor of claim 5 wherein the air inlet (17) and the air outlet (18) are provided on the outer layer (9).

7. The arteriovenous blood oxygen monitor according to claim 6 wherein the air inlet (17) is provided with a one-way valve that communicates from atmosphere to the interior of the annular air chamber.

8. The arteriovenous blood oxygen monitor of claim 7 wherein the inflator is a latex ball (15); the latex ball (15) is connected with the air inlet (17) through a connecting pipe.

9. The arteriovenous blood oxygen monitor of any one of claims 1 to 8 wherein the bleed air adjustment means comprises:

the support column (11) is sleeved in the air outlet (18) in a sliding manner; the outer diameter of the support column (11) is smaller than the inner diameter of the air outlet (18);

one end of the conical rubber plug (10) is arranged in the annular air bag and is suitable for being clamped with the air outlet, and the other end of the conical rubber plug extends towards the air outlet and is connected with the supporting column;

the round cap (13) is connected with one end of the support column (11) far away from the air outlet (18); the diameter of the circular cap (13) is larger than the inner diameter of the air outlet (18);

the elastic piece is sleeved on the supporting column (11); one end of the elastic piece is abutted with the outer layer (9) of the annular air bag, and the other end of the elastic piece is abutted with the circular cap (13); the elastic piece has the drive power that drives circular cap (13) and keep away from gas outlet (18) and make conical rubber buffer and gas outlet joint.

10. The arteriovenous oxygen monitor of any one of claims 4 to 8 wherein the material of the inner layer (8) of the annular balloon and/or the outer layer (9) of the annular balloon is black.

Images