CN216257102U - Constant-force clamping type fingertip oximeter - Google Patents
Constant-force clamping type fingertip oximeter Download PDFInfo
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- CN216257102U CN216257102U CN202122601666.0U CN202122601666U CN216257102U CN 216257102 U CN216257102 U CN 216257102U CN 202122601666 U CN202122601666 U CN 202122601666U CN 216257102 U CN216257102 U CN 216257102U
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Abstract
The utility model discloses a constant-force clamping type fingertip oximeter, which belongs to the field of oximeters and solves the problems that in the prior art, when a patient finger is clamped by the existing oximeter, the clamping force is different, or the patient finger is clamped too tightly to feel uncomfortable, or the patient finger is clamped too loosely to fall off; this scheme carries out the centre gripping to patient's finger through the centre gripping gasbag, patient's finger can lead to the fact the extrusion to the centre gripping gasbag, make it take place deformation, the volume that leads to the gas storage district diminishes, the pressure grow, patient's finger is thicker, the deformation of centre gripping gasbag is big more, pressure in the gas storage district is big more, spring force in the check valve an can be overcome to this pressure, make check valve a opened, air in the gas storage district can be discharged partly, pressure and the spring force in the check valve a keep balance until the gas storage district, so patient's finger no matter is thick thin, oximeter in this scheme can both exert invariable clamping-force to it.
Description
Technical Field
The utility model belongs to the field of medical instruments, particularly relates to the field of oximeters, and particularly relates to a constant-force clamping type fingertip oximeter.
Background
Fingertip oximeter is a common medical instrument which detects patient data such as blood oxygen saturation and pulse rate through the finger of a patient, when the existing fingertip oximeter is used, the tail end of the oximeter is generally pressed to open the oximeter, the finger of the patient is inserted into the oximeter, the pressing of the oximeter is loosened, namely, the finger of the patient is clamped through means such as a torsion spring, and the clamping mode has the following advantages: when the fingers of the patient are too thick and too thin, the clamping force is different, or the fingers of the patient are clamped too tightly and feel uncomfortable, or the fingers of the patient are clamped too loosely and easily fall off, and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that when the existing oximeter clamps the fingers of a patient, the clamping force is different, the fingers of the patient feel uncomfortable due to too tight clamping, or the fingers of the patient are easy to fall off due to too loose clamping when the fingers of the patient are too thick and too thin in the prior art, the utility model provides the constant-force clamping type fingertip oximeter.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a constant force centre gripping formula fingertip oximeter, includes the oximeter shell, and the one end of oximeter shell is provided with fixture, and fixture includes clamping component and constant force component, and clamping component is used for pointing to patient's centre gripping, and the constant force component is used for making clamping component be the constant value to the clamping-force that patient pointed.
As a further improvement and optimization of the present invention.
The clamping component comprises a casing body arranged at the end part of an oximeter shell, the casing body is of an internal hollow annular shell structure, a notch is coaxially formed in the inner annular surface of the casing body, a clamping air bag made of elastic materials is arranged at the notch, a sealed air storage area is formed by the clamping air bag and the inner cavity of the casing body, and the end part of the casing body, which is used for the fingers of a patient to stretch into, is an installation end.
As a further improvement and optimization of the present invention.
The constant force component is arranged at the mounting end of the casing and comprises a casing, one side face of the casing is provided with a connecting nozzle a, the other side face of the casing is provided with a connecting nozzle b, the side face of the casing provided with the connecting nozzle a is parallel to the side face arranged on the connecting nozzle b, the tail end of the connecting nozzle a is communicated with the mounting end of the casing, the tail end of the connecting nozzle b is connected with an air pipe, the tail end of the air pipe is provided with a one-way valve b, the outside of the air pipe is provided with a connector, and the tail end of the connector is detachably provided with the one-way valve a;
the check valve a is used for driving air in the trachea to flow to the outside in a one-way mode through the joint, and the check valve b is used for driving the outside air to flow to the trachea in a one-way mode.
As a further improvement and optimization of the present invention.
Swing joint between centre gripping gasbag and the cover shell, the installation end of cover shell is provided with the support, installs on the support to be used for ordering about the rotatory drive assembly of centre gripping gasbag at centre gripping gasbag reset process.
As a further improvement and optimization of the present invention.
The end part of the clamping air bag extends along the axial direction to form a plurality of groups of linkage rods which are arranged in an array along the circumferential direction of the casing;
the driving assembly comprises a rotating shaft and a shifting shaft, the axial direction of the shifting shaft is perpendicular to the axial direction of the linkage rods, the shifting shaft is arranged on the support, the output end of the shifting shaft is connected with a shifting rod, the extending direction of the shifting rod is parallel to the extending direction of the linkage rods, and the shifting rod is positioned between the two adjacent groups of linkage rods;
the axial direction of the rotating shaft is vertical to the axial direction of the shifting shaft and the extending direction of the shifting lever, two groups of rotating shafts are coaxially arranged and respectively comprise a rotating shaft a and a rotating shaft b, the rotating shaft a is arranged in the housing, the output end of the rotating shaft a extends out of the housing, the rotating shaft b is arranged on the bracket, the outer circular surface of the rotating shaft a radially extends to form fan blades, and the fan blades are arrayed in multiple groups along the circumferential direction of the rotating shaft a;
a power connecting part is arranged between the output end of the rotating shaft a and the input end of the rotating shaft b, and in the resetting process of the clamping air bag, the rotating shaft a rotates to unidirectionally pull the rotating shaft b to synchronously rotate through the power connecting part;
and the output end of the rotating shaft b and the input end of the shifting shaft are in power transmission through a power transmission piece.
As a further improvement and optimization of the present invention.
The power connecting part comprises a rotating ring a and a rotating ring b, wherein the rotating ring a is coaxially arranged at the output end of the rotating shaft a, the rotating ring b is coaxially arranged at the input end of the rotating shaft b, one-way connecting pieces are arranged between the rotating ring a and the rotating ring b, and multiple groups of the one-way connecting pieces are arranged in an array mode along the circumferential direction of the rotating ring a.
As a further improvement and optimization of the present invention.
The end face of the rotating ring a is provided with a sliding hole, and the end face of the rotating ring b facing the rotating ring a is provided with a connecting groove;
the one-way connecting piece comprises a sliding rod coaxially sleeved in a sliding hole in a sliding mode, two ends of the sliding rod are respectively located on two sides of the rotating ring a, one end of the sliding rod is provided with a limiting step, the other end of the sliding rod is provided with a connecting block, and the connecting block is located in the connecting groove;
in the resetting process of the clamping air bag, the steering of the rotating shaft a is steering a, two end faces of the connecting block along the steering a are respectively a transfer plane and an avoidance inclined plane, the avoidance inclined plane is positioned behind the transfer plane along the steering a, and the distance between the avoidance inclined plane and the transfer plane increases progressively along the direction that the rotating ring b points to the rotating ring a;
and a spring positioned between the connecting block and the rotating ring a is sleeved outside the sliding rod.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the scheme, the fingers of the patient are clamped through the clamping air bag, the clamping air bag is extruded by the fingers of the patient, so that the clamping air bag is deformed, the size of the air storage area is reduced, the pressure intensity is increased, the thicker the fingers of the patient are, the larger the deformation of the clamping air bag is, the higher the pressure intensity in the air storage area is, the pressure intensity can overcome the spring elasticity in the one-way valve a, the one-way valve a is opened, and the air in the air storage area can be discharged to a part until the pressure intensity in the air storage area and the spring elasticity in the one-way valve a are balanced, so that the oximeter can apply constant clamping force to the fingers of the patient regardless of the thickness;
2. the scheme can change the constant clamping force applied by the oximeter to the fingers of the patient by replacing the one-way valves a with different spring coefficients;
3. this scheme is through drive assembly and power adapting unit's cooperation, and after patient's finger was taken out from the oximetry, the in-process that the centre gripping gasbag reset orders about the centre gripping gasbag rotatory, and then makes the oximetry in permanent use, and patient's finger nail rubs the distribution on each position of inner circle of centre gripping gasbag that the centre gripping gasbag caused to this life who improves the centre gripping gasbag, and then improves the life of oximetry.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a clamping mechanism according to the present invention;
FIG. 3 is a cross-sectional view of a clamping member of the present invention;
FIG. 4 is a schematic structural view of a constant force member of the present invention;
FIG. 5 is a schematic view of the interior of the housing of the present invention;
FIG. 6 is a schematic view of the driving assembly of the present invention;
FIG. 7 is an exploded view of the power coupling component of the present invention;
fig. 8 is a cross-sectional view of a check valve a and a check valve b according to the present invention.
Reference numerals:
10. an oximeter housing; 20. a clamping member; 21. a housing; 22. clamping the air bag; 23. a linkage rod; 30. a constant force member; 31. a housing; 32. an air tube; 33. a one-way valve a; 34. a check valve b; 35. a rotating shaft a; 351. a fan blade; 36. a rotating shaft b; 37. a power transmission member; 38. a shaft is poked; 39. a deflector rod; 40. a power connection component; 41. a rotating ring a; 42. a slide hole; 43. a swivel b; 44. connecting grooves; 45. a slide bar; 46. connecting blocks; 47. a spring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1-2, a constant force clamping type fingertip oximeter comprises an oximeter housing 10, wherein one end of the oximeter housing 10 is provided with a clamping mechanism, and the clamping mechanism is used for performing constant force clamping on a finger of a patient.
The clamping mechanism comprises a clamping component 20 and a constant force component 30, when in use, a finger of a patient directly passes through the inner ring of the clamping component 20 and extends into the oximeter, and in the process, no matter the thickness of the finger of the patient, the constant force component 30 enables the clamping force of the clamping component 20 to the finger of the patient to be a preset value, namely a fixed value.
As shown in fig. 2-3, the holding member 20 includes a casing 21 mounted at an end of the oximeter housing 10, the casing 21 has an annular housing structure with a hollow interior, a gap is coaxially formed on an inner circumferential surface of the casing 21, a holding airbag 22 made of an elastic material is disposed at the gap, and the holding airbag 22 and an inner cavity of the casing 21 jointly form a sealed air storage region.
The end of the casing 21 for the insertion of the patient's finger is the mounting end.
As shown in fig. 4, the constant force member 30 is installed at the installation end of the housing 21, the constant force member 30 includes a cover 31, a connection nozzle a is provided at one side surface of the cover 31, a connection nozzle b is provided at the other side surface, and the side surface of the cover 31 provided with the connection nozzle a and the side surface provided with the connection nozzle b are parallel to each other.
The tail end of the connecting nozzle a is connected and communicated with the mounting end of the casing 21, the tail end of the connecting nozzle b is connected with the air pipe 32, the tail end of the air pipe 32 is provided with a one-way valve b34, the outside of the air pipe 32 is provided with a joint, and the tail end of the joint is detachably provided with a one-way valve a33, for example, in a threaded mounting mode.
The check valve a33 is used to drive the air in the air pipe 32 to flow to the outside in a one-way manner through the joint, the check valve b34 is used to drive the outside air to flow in a one-way manner into the air pipe 32, and as shown in fig. 8, both the check valve a33 and the check valve b34 are check valve structures provided with springs in the prior art, and can be realized.
When the blood oxygen meter is used, a finger of a patient penetrates through the clamping component 20 and extends into the blood oxygen meter, in the process, the finger of the patient can extrude the clamping air bag 22 to enable the clamping air bag 22 to deform, the volume of the air storage area becomes smaller, the pressure intensity becomes larger, the larger the deformation of the clamping air bag 22 is, the larger the pressure intensity in the air storage area is, the pressure intensity can overcome the spring force in the one-way valve a33 to enable the one-way valve a33 to be opened, the air in the air storage area flows out in one-way through the connecting nozzle a, the cover shell 31, the connecting nozzle b, the air pipe 32, the connector and the one-way valve a33 in sequence, when the pressure intensity in the air storage area is reduced to be insufficient to overcome the spring force in the one-way valve a33, the one-way valve a33 is closed, the spring force in the one-way valve a33 enables the pressure intensity in the air storage area to be kept at a constant preset value, the preset value is matched with the spring force in the one-way valve a33, and can be known comprehensively, no matter the patient indicates the thickness, the oximeter in this scheme can both exert invariable clamping force to it to the different check valve a33 of spring coefficient can be changed to the default value of oximeter to patient's finger clamping force.
When the fingers of the patient are pulled out of the oximeter, the clamping air bag 22 deforms and recovers, the volume of the air storage area recovers, and further the pressure in the air storage area is reduced and is lower than the external atmospheric pressure, at the moment, the pressure difference between the air storage area and the outside overcomes the elastic force of the spring in the check valve b34, so that the check valve b34 is opened, and the external air flows into the air storage area in a one-way mode through the check valve b34, the air pipe 32, the connecting nozzle b, the housing 31 and the connecting nozzle a until the air in the air storage area is balanced with the outside.
The preferred embodiment, because the patient finger passes centre gripping gasbag 22 and stretches into in the oximetry, so the nail of patient's finger can cause the scratch to centre gripping gasbag 22, long-term the back of using, the same position of centre gripping gasbag 22 receives more scratch, can influence its life, and then influence the life of oximetry, for solving this problem, swing joint between centre gripping gasbag 22 and the cover shell 21, the installation end of cover shell 21 is provided with the support, install on the support and be used for driving about the rotatory drive assembly of centre gripping gasbag 22.
Specifically, as shown in fig. 2 and 4-6, the ends of the clamping airbags 22 extend axially with linkage rods 23, and the linkage rods 23 are arranged in a plurality of groups in an array along the circumferential direction of the casing 21.
The driving assembly comprises a rotating shaft and a shifting shaft 38, the axial direction of the shifting shaft 38 is perpendicular to the axial direction of the linkage rods 23, the shifting shaft 38 is mounted on the support and rotates around the axial direction of the shifting shaft 38, the output end of the shifting shaft 38 is connected with a shifting rod 39, the extending direction of the shifting rod 39 is parallel to the extending direction of the linkage rods 23, and the shifting rod 39 is located between two adjacent groups of linkage rods 23.
The axial direction of the rotating shafts is perpendicular to the axial direction of the shifting shaft 38 and perpendicular to the extending direction of the shifting rod 39, and the rotating shafts are coaxially provided with two groups: the rotating shaft a35 and the rotating shaft b36, wherein the rotating shaft a35 is installed in the housing 31, the output end of the rotating shaft a35 extends out of the housing 31, the rotating shaft b36 is installed on the bracket, the outer circumferential surface of the rotating shaft a35 extends with fan blades 351 along the radial direction, and the fan blades 351 are arranged in multiple groups along the circumferential direction of the rotating shaft a 35; when the air flows through the cover 31, the fan blade 351 is driven to rotate, the rotation of the fan blade 351 pulls the rotating shaft a35 to rotate synchronously, and the rotating shaft a35 rotates reversely during the process of inserting or extracting the finger of the patient into or from the oximeter.
The power connecting component 40 is arranged between the output end of the rotating shaft a35 and the input end of the rotating shaft b36, and in the process of resetting the clamping air bag 22, the rotating shaft a35 rotates to pull the rotating shaft b36 to rotate synchronously through the power connecting component 40 in a single direction.
The power transmission is performed between the output end of the rotating shaft b36 and the input end of the dial shaft 38 through the power transmission piece 37, and the power transmission piece 37 is realized by the prior art and is not described again.
During insertion of the patient's finger into the oximeter, rotation of shaft a35 will not pull rotation of shaft b36, the drive assembly is not activated, and the holding bladder 22 is stationary.
After the finger of the patient is pulled out of the oximeter, in the resetting process of the clamping air bag 22, the rotating shaft a35 rotates, the rotating shaft b36 is pulled by the power connecting component 40 to rotate synchronously, the rotating shaft b36 rotates, the shifting shaft 38 is pulled by the power transmission component 37 to rotate, the shifting shaft 38 rotates, the shifting rod 23 is shifted by the shifting rod 39, the shifting rod 23 deflects, and then the clamping air bag 22 rotates.
In conclusion, after the fingers of the patient are drawn out from the oximeter, the clamping air bag 22 rotates, so that when the next patient uses the device, the part of the finger nail scratching the clamping air bag 22 is not overlapped with the part of the previous patient scratching the clamping air bag 22, i.e. the scratching is distributed on each part of the inner ring of the clamping air bag 22, and the service life of the clamping air bag 22 is prolonged.
In addition, behind driving lever 39 stir trace 23, the position of driving lever 39 changes, needs the oximetry to use through many patients, and in many patients use, driving lever 39 continues to rotate and resumes behind the normal position, just can stir trace 23 when next use and deflect, promptly: after the patient's fingers scratch the same portion of the holding airbag 22 several times, the holding airbag 22 rotates once, and the scratches are still distributed on each portion of the inner ring of the holding airbag 22.
As shown in fig. 7, the power connection component 40 includes a swivel a41 coaxially installed at the output end of the rotating shaft a35, a swivel b43 coaxially installed at the input end of the rotating shaft b36, and unidirectional connectors are arranged between the swivel a41 and the swivel b43, and preferably, the unidirectional connectors are arranged in multiple groups along the circumferential direction of the swivel a 41.
Specifically, a slide hole 42 is formed in an end surface of the swivel a41, and a connecting groove 44 is formed in an end surface of the swivel b43 facing the swivel a 41.
The one-way connecting piece includes that coaxial slip cover is equipped with slide bar 45 in the slide opening 42, and the both ends of slide bar 45 are located the both sides of swivel a41 respectively, and the one end of slide bar 45 is provided with spacing step, and the other end is provided with connecting block 46, and connecting block 46 is located the spread groove 44.
In the process of resetting the holding airbag 22, the rotation direction of the rotating shaft a35 is a turning direction a, two end faces of the connecting block 46 along the turning direction a are respectively a transfer plane and an avoidance inclined plane, wherein the avoidance inclined plane is located behind the transfer plane along the turning direction a, and the distance between the avoidance inclined plane and the transfer plane increases progressively along the direction that the rotating ring b43 points to the rotating ring a 41.
The outer sleeve of the sliding rod 45 is provided with a spring 47 between the connecting block 46 and the swivel a 41.
In the process that the finger of the patient extends into the oximeter, the rotating shaft a35 rotates and the rotating direction is opposite to the rotating direction a, due to the existence of the avoiding inclined surface, in the process that the rotating ring a41 rotates along with the rotating shaft a35, the connecting block 46 continuously moves repeatedly to be separated from the connecting groove 44 and to be positioned in the next group of connecting grooves 44 again, and the rotating ring a41 cannot drive the rotating ring b43 to rotate;
after the finger of the patient is pulled out of the oximeter, during the resetting of the holding bladder 22, the rotation shaft a35 rotates and turns in accordance with the rotation direction a, and due to the existence of the transfer plane, the rotation ring a41 rotates and drives the rotation ring b43 to rotate together, so that the rotation shaft b36 rotates.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and there may be other divisions when the actual implementation is performed; the modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of the embodiment.
It will also be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms second, etc. are used to denote self-contained vehicular sound collection devices and do not denote any particular order.
Finally, it should be noted that the above examples are only intended to illustrate the technical process of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical process of the present invention without departing from the spirit and scope of the technical process of the present invention.
Claims (7)
1. The utility model provides a constant force centre gripping formula fingertip oximeter, includes oximetry shell (10), and the one end of oximetry shell (10) is provided with fixture, its characterized in that, fixture includes clamping member (20) and constant force component (30), and clamping member (20) are used for pointing to the patient and carry out the centre gripping, and constant force component (30) are used for making clamping member (20) be the invariable value to the clamping-force of patient's finger.
2. The constant-force clamping type fingertip oximeter according to claim 1, wherein the clamping member (20) comprises a casing (21) mounted at an end portion of the oximeter housing (10), the casing (21) has a circular ring-shaped housing structure with a hollow interior, a gap is coaxially formed in an inner annular surface of the casing (21), a clamping air bag (22) made of an elastic material is arranged at the gap, the clamping air bag (22) and an inner cavity of the casing (21) jointly form a sealed air storage region, and an end portion of the casing (21) into which a finger of a patient extends is a mounting end.
3. The constant-force clamping type fingertip oximeter according to claim 2, wherein the constant-force member (30) is mounted at a mounting end of the casing (21), the constant-force member (30) comprises a casing (31), a connection nozzle a is arranged on one side surface of the casing (31), a connection nozzle b is arranged on the other side surface of the casing, the side surface of the casing (31) provided with the connection nozzle a is parallel to the side surface of the connection nozzle b, the tail end of the connection nozzle a is communicated with the mounting end of the casing (21), the tail end of the connection nozzle b is connected with an air pipe (32), a one-way valve b (34) is arranged at the tail end of the air pipe (32), a connector is arranged outside the air pipe (32), and the tail end of the connector is detachably provided with the one-way valve a (33);
the one-way valve a (33) is used for driving air in the air pipe (32) to flow to the outside in a one-way mode through the connector, and the one-way valve b (34) is used for driving outside air to flow into the air pipe (32) in a one-way mode.
4. The constant-force clamping type fingertip oximeter according to claim 3, wherein the clamping air bag (22) is movably connected with the casing (21), a bracket is arranged at the mounting end of the casing (21), and a driving component for driving the clamping air bag (22) to rotate in the resetting process of the clamping air bag (22) is mounted on the bracket.
5. The constant-force clamping type fingertip oximeter according to claim 4, wherein a plurality of groups of linkage rods (23) extend from the end of the clamping air bag (22) along the axial direction, and the linkage rods (23) are arranged in an array along the circumferential direction of the cover case (21);
the driving assembly comprises a rotating shaft and a shifting shaft (38), the axial direction of the shifting shaft (38) is perpendicular to the axial direction of the linkage rods (23), the shifting shaft (38) is installed on the support, the output end of the shifting shaft (38) is connected with a shifting rod (39), the extending direction of the shifting rod (39) is parallel to the extending direction of the linkage rods (23), and the shifting rod (39) is located between two adjacent groups of linkage rods (23);
the axial direction of the rotating shaft is perpendicular to the axial direction of the shifting shaft (38) and the extending direction of the shifting lever (39), two groups of rotating shafts are coaxially arranged and respectively comprise a rotating shaft a (35) and a rotating shaft b (36), the rotating shaft a (35) is installed in the housing (31), the output end of the rotating shaft a (35) extends out of the housing (31), the rotating shaft b (36) is installed on the support, the outer circular surface of the rotating shaft a (35) radially extends to form a plurality of fan blades (351), and the fan blades (351) are arrayed along the circumferential direction of the rotating shaft a (35) in a plurality of groups;
a power connecting part (40) is arranged between the output end of the rotating shaft a (35) and the input end of the rotating shaft b (36), and in the resetting process of the clamping air bag (22), the rotating shaft a (35) rotates to pull the rotating shaft b (36) to rotate synchronously in a single direction through the power connecting part (40);
the output end of the rotating shaft b (36) and the input end of the shifting shaft (38) are in power transmission through a power transmission piece (37).
6. The constant-force clamping type fingertip oximeter according to claim 5, wherein the power connecting part (40) comprises a rotating ring a (41) coaxially installed at an output end of the rotating shaft a (35), and a rotating ring b (43) coaxially installed at an input end of the rotating shaft b (36), a unidirectional connecting part is arranged between the rotating ring a (41) and the rotating ring b (43), and multiple groups of unidirectional connecting parts are arranged in an array along a circumferential direction of the rotating ring a (41).
7. The constant-force clamping type fingertip oximeter according to claim 6, wherein a sliding hole (42) is formed in an end face of the rotating ring a (41), and a connecting groove (44) is formed in an end face, facing the rotating ring a (41), of the rotating ring b (43);
the one-way connecting piece comprises a sliding rod (45) coaxially sleeved with a sliding hole (42) in a sliding mode, two ends of the sliding rod (45) are located on two sides of the rotating ring a (41) respectively, one end of the sliding rod (45) is provided with a limiting step, the other end of the sliding rod is provided with a connecting block (46), and the connecting block (46) is located in a connecting groove (44);
in the resetting process of the clamping air bag (22), the rotating shaft a (35) turns to a turning direction a, the two end faces of the connecting block (46) along the turning direction a are respectively a transfer plane and an avoidance inclined plane, the avoidance inclined plane is positioned behind the transfer plane along the turning direction a, and the distance between the avoidance inclined plane and the transfer plane is gradually increased along the direction that the rotating ring b (43) points to the rotating ring a (41);
and a spring (47) positioned between the connecting block (46) and the rotating ring a (41) is sleeved outside the sliding rod (45).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122601666.0U CN216257102U (en) | 2021-10-28 | 2021-10-28 | Constant-force clamping type fingertip oximeter |
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| CN202122601666.0U CN216257102U (en) | 2021-10-28 | 2021-10-28 | Constant-force clamping type fingertip oximeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105995A (en) * | 2022-05-25 | 2022-09-27 | 重庆医科大学附属永川医院 | Test tube shaking and mixing device for hematology department inspection |
| CN116725528A (en) * | 2023-08-15 | 2023-09-12 | 深圳市亿米生命科技有限公司 | Finger-clamping type blood oxygen tester |
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2021
- 2021-10-28 CN CN202122601666.0U patent/CN216257102U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115105995A (en) * | 2022-05-25 | 2022-09-27 | 重庆医科大学附属永川医院 | Test tube shaking and mixing device for hematology department inspection |
| CN115105995B (en) * | 2022-05-25 | 2023-08-22 | 重庆医科大学附属永川医院 | Test tube shakes and mixes device for clinical laboratory |
| CN116725528A (en) * | 2023-08-15 | 2023-09-12 | 深圳市亿米生命科技有限公司 | Finger-clamping type blood oxygen tester |
| CN116725528B (en) * | 2023-08-15 | 2024-01-26 | 医然控股集团有限公司 | Finger-clamping type blood oxygen tester |
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