CN116725528B - Finger-clamping type blood oxygen tester - Google Patents
Finger-clamping type blood oxygen tester Download PDFInfo
- Publication number
- CN116725528B CN116725528B CN202311023991.0A CN202311023991A CN116725528B CN 116725528 B CN116725528 B CN 116725528B CN 202311023991 A CN202311023991 A CN 202311023991A CN 116725528 B CN116725528 B CN 116725528B
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- clamping
- oximeter
- groups
- linkage rod
- patient
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 13
- 229910052760 oxygen Inorganic materials 0.000 title claims description 13
- 239000001301 oxygen Substances 0.000 title claims description 13
- 239000008280 blood Substances 0.000 title claims description 12
- 210000004369 blood Anatomy 0.000 title claims description 12
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000010862 gear shaping Methods 0.000 claims description 21
- 230000000149 penetrating effect Effects 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000000282 nail Anatomy 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6825—Hand
- A61B5/6826—Finger
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6838—Clamps or clips
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention relates to the field of medical equipment, and discloses a finger-clamping type oximeter which comprises an oximeter shell, two groups of clamping arms, a detection element and a constant pressure mechanism, wherein the two groups of clamping arms are slidably arranged on the oximeter shell, the detection element is arranged on one side of the two groups of clamping arms opposite to each other, the constant pressure mechanism is arranged in the oximeter shell, the constant pressure mechanism is matched with the two groups of clamping arms and is used for realizing self-adaption of the thickness of fingers of a patient and clamping the fingers of the patient, and when the fingers are clamped, the clamping pressure of the fingers of the patient is a preset constant value and does not change along with the clamping time, so that the clamping pressure of the oximeter on the fingers of the patient is kept constant after the oximeter is clamped on the fingers of the patient, the patient is more comfortable and is not easy to fall off, and the problem that the concave of the clamping position of the fingers of the patient is deepened along with the time that the oximeter is clamped on the fingers of the patient is prolonged, and the discomfort of the clamping position of the fingers of the patient is more obvious is solved.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to the field of oximeter, and particularly relates to a finger-clip type oximeter.
Background
The finger clip type oximeter is also called as a fingertip oximeter, and is a medical instrument which is clipped on the finger of a patient and is used for monitoring vital signs such as oxygen saturation of the patient, when the traditional fingertip oximeter is used, the tail end of the oximeter is pressed to open the oximeter, then the finger of the patient is put into the oximeter, and then the finger clip type oximeter is released to press, and the oximeter is folded under the action of elastic elements such as torsion springs, so that the oximeter is clamped on the finger of the patient, and the use mode has some defects: 1. the mode can realize the clamping of fingers with different thicknesses, but the fingers with different thicknesses are easy to cause discomfort caused by too tight clamping of the fingers of a patient or easy to fall off caused by too loose clamping; 2. when the oximeter is folded to clamp the fingers by releasing the elastic force of the torsion spring, the elastic force of the torsion spring is not completely released, the fingers of a person are soft and easy to deform, the fingers are clamped down for a long time, the clamping position of the fingers inevitably generate partial depression, the depression can further release the elastic force of the torsion spring, the clamping is relatively tight, that is, the time for clamping the oximeter on the fingers of a patient is prolonged, the depression of the clamping position of the fingers of the patient is deepened, and the discomfort of the clamping position of the fingers of the patient is more obvious.
Based on the above, the invention provides a finger-clip type blood oxygen tester.
Disclosure of Invention
In order to solve the problems mentioned in the background, the invention provides a finger-clip type blood oxygen tester.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.
The finger-clamping type blood oxygen tester comprises a blood oxygen meter shell, two groups of clamping arms, a detection element and a constant pressure mechanism, wherein the two groups of clamping arms are slidably arranged on the blood oxygen meter shell, the detection element is arranged on one side of the two groups of clamping arms opposite to each other, the constant pressure mechanism is arranged in the blood oxygen meter shell, the constant pressure mechanism is matched with the two groups of clamping arms and is used for realizing self-adaption of the thickness of a finger of a patient and clamping the finger of the patient, and the clamping pressure born by the finger of the patient is a preset constant value during clamping.
Further, the inside of the oximeter shell is hollow and is in a U-shaped shape, the oximeter shell comprises a middle section and side sections vertically arranged on the middle section, the side sections are provided with two groups and are respectively positioned at two ends of the middle section, the two groups of side sections are positioned at the same side of the middle section, one sides of the two groups of side sections opposite to each other are open, the middle section is open towards one side of the side section, an inner support is arranged in the middle section, and the distance direction between the two groups of side sections is named as an opening and closing direction;
the constant pressure mechanism comprises constant pressure components, and the constant pressure components are provided with two groups corresponding to the clamping arms.
Further, the constant-pressure component comprises a guide rod arranged on the inner support along the opening and closing direction, the clamping arms are parallel to the side sections of the oximeter shell, the clamping arms are arranged in the side sections, one ends of the clamping arms extend into the middle section, sleeve grooves are formed in opposite sides of the ends of the two groups of clamping arms extending into the middle section, the sleeve grooves and the guide rod form sliding guide fit, and a second spring is arranged between the bottom of each sleeve groove and the guide rod.
Further, a rack is arranged on the end part of the clamping arm extending into the middle section along the opening and closing direction, a gear meshed with the rack is arranged on the inner support, the axial direction of the gear is perpendicular to the opening and closing direction and the extending direction of the clamping arm, an opening rod is radially arranged outside a gear shaft of the gear, and the tail end of the opening rod extends out of the oximeter shell in a mode of penetrating through the middle section.
Further, the inside of the clamping arm is hollow;
one side of the two groups of clamping arms opposite to each other is provided with a mounting area, a detection element is slidably mounted in the mounting area along the opening and closing direction, a first spring is further arranged in the clamping arms, the elastic force of the first spring is used for driving the detection element to move to extend out of the clamping arms, and one end of the detection element extends out of the mounting area in an initial state.
Further, a loop bar is arranged on the inner bracket along the opening and closing direction;
the constant-pressure component further comprises a plugboard, a sleeve hole is formed in the plugboard in a penetrating mode, and the plugboard is sleeved outside the sleeve rod in a sliding mode through the sleeve hole;
the constant-pressure component further comprises a spring five sleeved outside the loop bars, the springs five on the same group of loop bars are provided with two groups and are respectively positioned at two sides of the plugboard, and in an initial state, the plugboard is in suspension arrangement under the cooperation of the two groups of springs five;
the opposite ends of the plugboards in the two groups of constant-pressure components are named as contact ends, and in the initial state, the distance between the contact ends of the plugboards and the inner bracket is H.
Further, a linkage rod group is slidably arranged in the clamp arm along the self extending direction;
one end of the linkage rod group, which faces the detection element, is provided with a first inclined plane, one side of the detection element, which faces the linkage rod group, is provided with a second inclined plane, and the distance between the end of the clamping arm, which is far away from the inner bracket, and the second inclined plane is reduced along the moving direction of the detection element, which retracts into the clamping arm, and the first inclined plane is attached to the second inclined plane;
the arm lock stretches into the tip of oximeter shell interlude and has offered and wear to establish the groove, wear to establish the cell wall in groove and have offered and wear to establish the hole, and the other end of trace group is worn to establish the groove and is close to the picture peg after wearing to establish the hole, and the surface of trace group is provided with the fixed block that is located and wears to establish the inslot, is provided with the spring IV between fixed block and the groove tank bottom of wearing to establish the groove.
Further, the end portion of the linkage rod set, which is close to the inserting plate, is extended to be provided with driving gear shaping, one side of the inserting plate, which faces the linkage rod set, is provided with driven gear shaping, a plurality of driven gear shaping are arranged along the extending direction of the loop rod in an array manner, and two adjacent driven gear shaping groups form an inserting area.
Further, the free end of the active gear shaping is provided with a third inclined plane which is parallel to the first inclined plane, one side of the plugging area facing the contact end of the plug board is provided with a plane, one side of the plugging area facing away from the contact end of the plug board is provided with a fourth inclined plane which is parallel to the third inclined plane, and the plane is parallel to the extending direction of the clamping arm;
the linkage rod group comprises a linkage rod I and a linkage rod II, wherein the inclined plane I is arranged on the linkage rod I, the driving gear shaping is arranged on the linkage rod II, the linkage rod I and the linkage rod II are positioned on the same straight line parallel to the extending direction of the clamping arm, the linkage rod I and the linkage rod II form sliding connection, and a spring III is arranged between the linkage rod I and the linkage rod II.
Compared with the prior art, the invention has the beneficial effects that:
the present oximeter clip and removal will be described with reference to the specific embodiments:
1. the oximeter is adaptive to the thickness of the fingers of a patient and clamps the fingers, when the oximeter clamps, the clamping pressure borne by the fingers of the patient is a preset constant value, the fingers of the patient are not influenced by the thickness of the fingers of the patient, and the preset constant value refers to the clamping pressure value which is the most comfortable when the fingers of the patient are clamped and is not easy to fall off;
because the clamping pressure is a constant value and cannot change along with the clamping time, the problem that the time for clamping the oximeter on the finger of a patient is prolonged, the recess at the clamping position of the finger of the patient is deepened, the spring is further released by the recess, and thus the discomfort at the clamping position of the finger of the patient is more obvious due to the fact that the spring force is released by the recess is solved in the background art, namely: the oximeter not only can adaptively clamp the fingers of a patient, but also is not easy to fall off during clamping, and is more comfortable during clamping of the patient.
2. The oximeter is just like the prior oximeter in use no matter when worn or removed, and the stretching rod (corresponding to the tail end of the prior oximeter) is pressed, so that the oximeter is simple and convenient to use, and medical staff can use the oximeter without additional training;
3. when the oximeter is worn or removed, the oximeter Zhang Kaiju is firstly actively opened at an angle larger than the thickness of the finger of a patient, and then the finger of the patient is put into the oximeter or removed from the oximeter, so that the wound or the nail barb on the finger of the patient can not be secondarily damaged due to the action of clamping or removing the oximeter.
Drawings
FIG. 1 is a schematic view of the structure of an oximeter when it is clipped to a finger;
FIG. 2 is a schematic view of the structure of the oximeter when not in use;
FIG. 3 is a cross-sectional view of the oximeter when not in use;
FIG. 4 is a cross-sectional view of the oximeter when it is clipped to a finger;
FIG. 5 is an internal schematic view of an oximeter;
FIG. 6 is a schematic view of a clamp arm, guide bar, and insert plate;
FIG. 7 is a schematic view of a clamp arm, guide bar, and spring two;
FIG. 8 is a schematic view of a clip arm, a trace set, and a card board;
FIG. 9 is a schematic diagram of a linkage and a board;
fig. 10 is an enlarged view of a in fig. 3.
The reference numerals in the drawings are:
100. an oximeter housing; 101. an inner bracket;
200. a clamp arm; 201. an opening rod; 202. a gear; 203. a rack;
300. a detection element; 301. a first spring;
400. a constant pressure mechanism; 401. a guide rod; 402. a second spring; 403. a first linkage rod; 404. a second linkage rod; 405. a third spring; 406. a fixed block; 407. a spring IV; 408. a loop bar; 409. inserting plate; 410. and a spring V.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
In the drawings of this scheme, a is a schematic representation of a patient's finger.
As shown in fig. 1 to 10, a finger-clipping type oximeter includes an oximeter housing 100, two groups of clipping arms 200 slidably mounted on the oximeter housing 100, a detecting element 300 disposed at opposite sides of the two groups of clipping arms 200, and a constant pressure mechanism 400 disposed in the oximeter housing 100, wherein:
the detection elements 300 are correspondingly provided with two groups, one group of detection elements 300 corresponds to a transmitting end in the existing fingertip oximeter detection technology, and the other group of detection elements 300 corresponds to a receiving end in the existing fingertip oximeter detection technology, which are all realizable in the prior art, and are not described in detail.
The constant pressure mechanism 400 is matched with the two groups of clamping arms 200, and is used for realizing self-adaption of the thickness of the fingers of the patient and clamping the fingers of the patient, and when in clamping, the clamping pressure born by the fingers of the patient is a preset constant value and does not change along with the clamping time, so that the following effects can be realized: 1. the finger thickness of the patient is self-adapted and the finger is clamped; 2. the clamping pressure applied to the fingers of the patient is a preset constant value, and the preset constant value refers to the clamping pressure value which is the most comfortable when the fingers of the patient are clamped and the oximeter is not easy to fall off, so that the experience of use is more comfortable; 3. the clamping pressure is a constant value and cannot change along with the clamping time, so that the problem that the discomfort of the clamping position of the finger of the patient is more obvious due to the fact that the concave of the clamping position of the finger of the patient is deepened along with the longer time that the oximeter is clamped on the finger of the patient in the background art is solved; comprehensively, the scheme not only can carry out self-adaptive clamping on the fingers of a patient, but also is not easy to fall off during clamping, and is more comfortable during clamping of the patient.
As shown in fig. 1 to 4, the oximeter housing 100 is generally U-shaped, specifically, the oximeter housing 100 includes a middle section and side sections vertically disposed on the middle section, the side sections are provided with two groups of side sections and are respectively located at two ends of the middle section, the two groups of side sections are located at the same side of the middle section, and a connection part between the side sections and the middle section is rounded.
The oximeter housing 100 has a hollow interior, two sets of side sections open on opposite sides, and an intermediate section also open on the side facing the side sections, as shown in fig. 4 and 5, and an inner holder 101 is provided in the intermediate section.
The direction of the distance between the two groups of side sections is named as the opening and closing direction.
The constant-pressure mechanism 400 includes constant-pressure members provided in two groups corresponding to the clip arms 200.
As shown in fig. 6 and 7, the constant-pressure member includes a guide rod 401 disposed on the inner bracket 101 along the opening and closing direction, the clip arms 200 are parallel to the side sections of the oximeter housing 100, the clip arms 200 are installed in the side sections, one ends of the clip arms 200 extend into the middle section, the opposite sides of the ends of the two groups of clip arms 200 extending into the middle section are provided with a sleeve groove, the sleeve groove and the guide rod 401 form sliding guide fit, and a second spring 402 is disposed between the bottom of the sleeve groove and the guide rod 401.
As shown in fig. 5, a rack 203 is provided on an end portion of the arm 200 extending into the middle section in the opening and closing direction, a gear 202 engaged with the rack 203 is mounted on the inner bracket 101, an axial direction of the gear 202 is perpendicular to the opening and closing direction and perpendicular to the extending direction of the arm 200, an opening rod 201 is provided radially outside a gear shaft of the gear 202, and a tip end of the opening rod 201 extends out of the oximeter housing 100 in a manner of passing through the middle section.
So in the initial state, under the action of the elastic force of the second spring 402, the two groups of clamping arms 200 are close to each other, and the oximeter is closed;
when the oximeter is used, like the common fingertip oximeter, a medical staff presses the opening rod 201, so that the ends of the opening rods 201 corresponding to the two groups of clamping arms 200 are deflected close to each other, the deflection is fed back to the clamping arms 200 through the gear 202 and the rack 203, the two groups of clamping arms 200 are separated from each other, the second spring 402 is compressed, and the oximeter is opened.
As shown in fig. 3 and 4, the inside of the clip arm 200 is hollow.
The two groups of clamp arms 200 are provided with a mounting area on one side opposite to each other, a detection element 300 is slidably mounted in the mounting area along the opening and closing direction, a first spring 301 is further arranged in the clamp arms 200, the elastic force of the first spring is used for driving the detection element 300 to extend out of the clamp arms 200, in addition, in the initial state, one end of the detection element 300 extends out of the mounting area, in order to prevent the detection element 300 from separating from the mounting area, an external step is arranged on the shell of the detection element 300, and an inner step is arranged at an orifice of the mounting area.
When the oximeter is opened by pressing the opening rod 201, the finger of the patient is placed between the two groups of clamping arms 200, then the opening rod 201 is released, and the second spring 402 releases the elastic force to drive the clamping arms 200 to approach the finger, in the process, the detecting element 300 is contacted with the finger of the patient earlier than the clamping arms 200, so that after the detecting element 300 is contacted with the finger of the patient, the detecting element 300 moves to retract into the clamping arms 200 relative to the clamping arms 200, the first spring 301 is compressed, and the clamping effect is not caused because the elastic coefficient of the first spring 301 is smaller, so that the uncomfortable feeling is not caused to the finger of the patient;
when the clip arm 200 is in contact with a patient's finger, the sensing element 300 is simultaneously engaged with the patient's finger.
As shown in fig. 8 and 9, a loop bar 408 is provided on the inner bracket 101 in the opening and closing direction.
The constant-pressure component further comprises a plugboard 409, a sleeve hole is formed in the plugboard 409 in a penetrating mode, and the plugboard 409 is sleeved outside the sleeve rod 408 in a sliding mode through the sleeve hole.
The constant-pressure members further include five springs 410 that are sleeved outside the loop bars 408, the five springs 410 on the same set of loop bars 408 are provided with two sets of springs and are respectively located at two sides of the plugboard 409, in an initial state, the plugboard 409 is arranged in a suspended manner under the cooperation of the two sets of springs 410, in addition, as shown in fig. 10, one end, opposite to the plugboard 409, of the two sets of constant-pressure members is named as a contact end, in the initial state, a distance between the contact end of the plugboard 409 and the inner support 101 is H, that is, when the plugboards 409 in the two sets of constant-pressure members move close to each other, a maximum moving distance of the plugboard 409 is H.
The clip arm 200 is internally provided with a linkage rod group in a sliding manner along the self extending direction.
One end of the linkage rod set, which faces the detection element 300, is provided with a first inclined plane, one side of the detection element 300, which faces the linkage rod set, is provided with a second inclined plane, and the distance between the end of the clamp arm 200, which is far away from the inner bracket 101, and the second inclined plane is reduced along the moving direction of the detection element 300, which retracts into the clamp arm 200, and the first inclined plane is attached to the second inclined plane.
The end of the clamping arm 200 extending into the middle section of the oximeter shell 100 is provided with a penetrating groove, the groove wall of the penetrating groove is provided with a penetrating hole, the other end of the linkage rod set passes through the penetrating groove and the penetrating hole and then approaches to the plugboard 409, the outer surface of the linkage rod set is provided with a fixing block 406 positioned in the penetrating groove, and a spring four 407 is arranged between the fixing block 406 and the groove bottom of the penetrating groove.
The end portion of the linkage rod group, which is close to the inserting plate 409, extends to form a driving gear shaping, one side of the inserting plate 409, which faces the linkage rod group, is provided with driven gear shaping, a plurality of driven gear shaping are arranged along the extending direction array of the sleeve rod 408, and two adjacent driven gear shaping groups form an inserting area.
As shown in fig. 10, the free end of the active gear shaping is provided with a third inclined plane parallel to the first inclined plane, a plane is arranged on a side of the plugging area facing the contact end of the plugging plate 409, a fourth inclined plane is arranged on a side of the plugging area facing away from the contact end of the plugging plate 409, the fourth inclined plane is parallel to the third inclined plane, and the plane is parallel to the extending direction of the clamping arm 200.
The working process of the invention comprises the following concrete steps:
1. the clamping process comprises the following steps:
firstly, as the common fingertip oximeter is used, a medical staff presses the opening rod 201 to enable the ends of the opening rods 201 corresponding to the two groups of clamping arms 200 to deflect close to each other, the deflection is fed back to the clamping arms 200 through the gear 202 and the rack 203 to enable the two groups of clamping arms 200 to move away from each other, the second spring 402 is compressed, and the oximeter is opened;
then, the patient's finger is placed between the two sets of clip arms 200;
then, the opening rod 201 is released, the spring II 402 releases the elastic force to drive the clamping arm 200 to approach the finger, and in the process, the detecting element 300 is contacted with the finger of the patient earlier than the clamping arm 200, so that after the detecting element 300 is contacted with the finger of the patient, the detecting element 300 moves relative to the clamping arm 200 to retract into the clamping arm 200, the spring I301 is compressed, and the clamping effect is not realized due to the small elastic coefficient of the spring I301, so that discomfort is not caused to the finger of the patient;
meanwhile, the movement of the detection element 300 retracting the clamping arm 200 drives the linkage rod set to approach the plugboard 409 through the cooperation of the first inclined plane and the second inclined plane, the spring IV 407 is compressed, and the active gear shaping is further inserted into the plugboard area;
when the arm 200 contacts the finger of the patient, the detecting element 300 is simultaneously attached to the finger of the patient, and in addition, the first inclined surface is out of contact with the second inclined surface, at this time: since the side of the plugging area facing the contact end of the plugboard 409 is set as a plane, the clamp arm 200 and the plugboard 409 can be regarded as an integrated structure through the linkage rod group, and then the second spring 402 continuously releases the elastic force, so that when the clamp arm 200 clamps the finger of a patient, the distance between the contact end of the plugboard 409 and the inner bracket 101 is H in the initial state, and the moving distance of the clamp arm 200 is H;
that is, the clamping pressure f1=f2-F3 of the clamping arm 200 against the patient's finger, wherein:
f2 is the product of the spring coefficient of the second spring 402 and H, and is a constant value;
f3 is the product of the spring force coefficient of the spring five 410 and H, and is also a constant value;
as for the elastic force of the first spring 301, the elastic coefficient of the first spring 301 is small and the friction force of the linkage rod set to the outer shell of the detecting element 300 is blocked, so that the friction force is negligible;
it is known that, after the oximeter is clamped, the clamping pressure of the oximeter to the patient's fingers is a preset constant value, which is not affected by the thickness of the patient's fingers.
2. The removing process comprises the following steps:
as in the normal fingertip oximeter, the medical staff presses the opening rod 201 to make the ends of the opening rods 201 corresponding to the two groups of clamping arms 200 close to each other, the deflection is fed back to the clamping arms 200 through the gears 202 and the racks 203 to make the two groups of clamping arms 200 far away from each other, the second spring 402 is compressed, the oximeter opens, and the clamping arms 200 move away from each other due to the insertion of the active gear into the insertion area and move together with the inserting plate 409, and the maximum distance of the opposite movement of the inserting plate 409 is H value due to the initial suspension state of the inserting plate 409 realized by the cooperation of the two groups of springs five 410, that is, when the oximeter opens to the maximum, the clamping pressure of the finger of the patient is withdrawn by the clamping arms 200, but the clamping arms 200 are still in contact with the finger of the patient, and the oximeter or the finger of the patient needs to be moved at this time, so that the oximeter is separated from the finger of the patient;
although the above-described manner can also achieve detachment between the oximeter and the finger of the patient, this detachment causes sweat and the like on the finger of the patient to remain on the clip arm 200 and the detecting element 300, and if there is a wound on the finger of the patient or if there is a barb on the finger nail, this may cause secondary injury to the wound or discomfort to the finger of the patient, and therefore:
as shown in fig. 9, the linkage rod set includes a first linkage rod 403 and a second linkage rod 404, the first inclined plane is disposed on the first linkage rod 403, the active gear shaping is disposed on the second linkage rod 404, the first linkage rod 403 and the second linkage rod 404 are located on the same straight line parallel to the extending direction of the arm 200, the first linkage rod 403 and the second linkage rod 404 form a sliding connection, and a third spring 405 is disposed therebetween.
In this way, after the insert plate 409 cannot move continuously in the moving process of the clip arms 200 away from each other, in the moving process of the clip arms 200, the active gear shaping is driven to be separated from the inserting area continuously by the cooperation of the inclined surface III and the inclined surface IV, and the active gear shaping is inserted into the adjacent inserting area under the elastic force of the spring III 405, that is, in the process of pressing the opening rod 201 to separate the two groups of clip arms 200 from each other, the clip arms 200 are not affected by the insert plate 409, so that the oximeter can be greatly opened, the clip arms 200 and the detecting element 300 are separated from the finger of the patient, then the finger of the patient can be easily removed from the oximeter, and the finger of the patient can not be contacted with the oximeter in the removing process.
In addition, when the arm 200 is separated from the finger contact of the patient, the first spring 301 gradually releases the elastic force during the continuous movement of the arm 200, so that one end of the detecting element 300 extends out of the arm 200, that is, the detecting element 300 is reset, and at the same time, the fourth spring 407 releases the elastic force, so that the linkage rod set gradually resets.
In addition, it should be noted that the spring coefficient of the third spring 405 in the trace set is larger, and the trace set can be regarded as a rod during the clamping process, and the spring direction of the third spring 405 is parallel to the extending direction of the clamping arm 200, so that no interference is generated to the clamping pressure.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (3)
1. A finger-clipping blood oxygen tester, comprising a blood oxygen tester housing (100), characterized in that: the device also comprises two groups of clamping arms (200) which are slidably arranged on the oximeter shell (100), a detection element (300) arranged on one side of the two groups of clamping arms (200) opposite to each other, and a constant pressure mechanism (400) arranged in the oximeter shell (100), wherein the constant pressure mechanism (400) is matched with the two groups of clamping arms (200) to realize self-adaption of the thickness of the fingers of a patient and clamp the fingers of the patient, and the clamping pressure born by the fingers of the patient is a preset constant value during clamping;
the inside of the oximeter shell (100) is hollow and is in a U-shaped shape, the oximeter shell (100) comprises a middle section and side sections which are vertically arranged on the middle section, the side sections are provided with two groups and are respectively positioned at two ends of the middle section, the two groups of side sections are positioned at the same side of the middle section, one sides of the two groups of side sections, which are opposite, are open, the middle section is open towards one side of the side section, an inner support (101) is arranged in the middle section, and the distance direction between the two groups of side sections is named as an opening and closing direction;
the constant-pressure mechanism (400) comprises constant-pressure components, and the constant-pressure components are provided with two groups corresponding to the clamping arms (200);
the constant-pressure component comprises a guide rod (401) arranged on the inner bracket (101) along the opening and closing direction, the clamping arms (200) are parallel to the side sections of the oximeter shell (100), the clamping arms (200) are arranged in the side sections, one ends of the clamping arms (200) extend into the middle section, sleeve grooves are formed in the opposite sides of the ends of the two groups of clamping arms (200) extending into the middle section, the sleeve grooves and the guide rod (401) form sliding guide fit, and a second spring (402) is arranged between the bottoms of the sleeve grooves and the guide rod (401);
the inside of the clamping arm (200) is hollow;
one side of the two groups of clamping arms (200) opposite to each other is provided with a mounting area, a detection element (300) is slidably mounted in the mounting area along the opening and closing direction, a first spring (301) is further arranged in the clamping arms (200), the elastic force of the first spring (301) is used for driving the detection element (300) to extend out of the clamping arms (200), and one end of the detection element (300) extends out of the mounting area in an initial state;
a loop bar (408) is arranged on the inner bracket (101) along the opening and closing direction;
the constant-pressure component further comprises a plugboard (409), a sleeve hole is formed in the plugboard (409) in a penetrating mode, and the plugboard (409) is sleeved outside the sleeve rod (408) in a sliding mode through the sleeve hole;
the constant-pressure component further comprises a spring five (410) sleeved outside the loop bar (408), the spring five (410) on the same group of loop bars (408) are provided with two groups and are respectively positioned at two sides of the plugboard (409), and in an initial state, the plugboard (409) is in suspension arrangement under the cooperation of the two groups of spring five (410);
one end of the plugboard (409) of the two groups of constant-pressure components, which is opposite, is named as a contact end, and in an initial state, the distance between the contact end of the plugboard (409) and the inner bracket (101) is H;
the inside of the clamping arm (200) is provided with a linkage rod group in a sliding way along the self extending direction;
one end of the linkage rod group, which faces the detection element (300), is provided with a first inclined plane, one side of the detection element (300), which faces the linkage rod group, is provided with a second inclined plane, and the distance between the end of the clamping arm (200), which is far away from the inner bracket (101), and the second inclined plane is gradually decreased along the moving direction of the detection element (300), in which the clamping arm (200) is retracted, and the first inclined plane is attached to the second inclined plane;
the clamping arm (200) stretches into the end part of the middle section of the oximeter shell (100) to form a penetrating groove, the groove wall of the penetrating groove is provided with a penetrating hole, the other end of the linkage rod group passes through the penetrating groove and the penetrating hole and then is close to the plugboard (409), the outer surface of the linkage rod group is provided with a fixed block (406) positioned in the penetrating groove, and a spring IV (407) is arranged between the fixed block (406) and the groove bottom of the penetrating groove;
the end portion of the linkage rod group, which is close to the inserting plate (409), is extended to be provided with driving gear shaping, one side of the inserting plate (409) facing the linkage rod group is provided with driven gear shaping, the driven gear shaping is provided with a plurality of along the extending direction array of the sleeve rod (408), and two adjacent driven gear shaping groups form an inserting area.
2. The finger-clip blood oxygen tester according to claim 1, wherein: the end part of the clamping arm (200) extending into the middle section is provided with a rack (203) along the opening and closing direction, the inner bracket (101) is provided with a gear (202) meshed with the rack (203), the axial direction of the gear (202) is perpendicular to the opening and closing direction and the extending direction of the clamping arm (200), the outer part of a gear shaft of the gear (202) is radially provided with an opening rod (201), and the tail end of the opening rod (201) extends out of the oximeter shell (100) in a mode of penetrating through the middle section.
3. The finger-clip blood oxygen tester according to claim 1, wherein: the free end of the driving gear shaping is provided with a third inclined plane which is parallel to the first inclined plane, one side of the plugging area, which faces towards the contact end of the plug board (409), is provided with a plane, one side of the plugging area, which faces away from the contact end of the plug board (409), is provided with a fourth inclined plane, the fourth inclined plane is parallel to the third inclined plane, and the plane is parallel to the extending direction of the clamping arm (200);
the linkage rod group comprises a linkage rod I (403) and a linkage rod II (404), wherein the first inclined surface is arranged on the linkage rod I (403), the driving gear shaping is arranged on the linkage rod II (404), the linkage rod I (403) and the linkage rod II (404) are positioned on the same straight line parallel to the extending direction of the clamping arm (200), the linkage rod I (403) and the linkage rod II (404) form sliding connection, and a spring III (405) is arranged between the linkage rod I and the linkage rod II (404).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311023991.0A CN116725528B (en) | 2023-08-15 | 2023-08-15 | Finger-clamping type blood oxygen tester |
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| CN202311023991.0A CN116725528B (en) | 2023-08-15 | 2023-08-15 | Finger-clamping type blood oxygen tester |
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| CN116725528B true CN116725528B (en) | 2024-01-26 |
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|---|---|
| CN116725528A (en) | 2023-09-12 |
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