CN110575184B - Stepless regulation type range blood sampling device - Google Patents

Abstract

The invention discloses a range stepless regulation type blood sampling device which comprises an air bag, a piston, a connecting ring, a connecting pipe, a blood sampling pipe, a driving device, a resetting device and a floating mechanism, wherein the piston is arranged on the air bag; the floating mechanism comprises a telescopic ring, an elastic membrane and a moving pipe; according to the invention, the connecting screw is clamped and rotated on the positioning plate, the threaded cylinder is driven to move up and down through the thread meshing principle, so that the connecting pipe is driven to move up and down, when the connecting pipe moves downwards, the lower end of the connecting pipe presses against the moving pipe to move downwards, so that the moving pipe presses against the guide post to move downwards on the elastic membrane, and when the connecting pipe moves upwards, the elastic pressing piece presses against the guide post upwards, so that the guide post presses against the moving pipe upwards to move the moving pipe upwards on the elastic membrane, so that the aim of moving the moving pipe up and down on the elastic membrane is fulfilled, and the technical effect of stepless capacity adjustment is realized.

Description

Stepless regulation type range blood sampling device

Technical Field

The invention relates to a range stepless adjusting type blood sampling device.

Background

Capillary blood collection tubes are common tools for analyzing blood in medical departments such as hospitals. The capillary blood collection tube is made of a glass tube which is small in inner diameter, is provided with openings at two ends and is communicated with the glass tube, one end of the capillary blood collection tube is in contact with blood to be collected when the blood is collected, and the blood to be collected automatically enters the interior of the micro capillary blood collection tube by utilizing the capillary principle.

Disclosure of Invention

Aiming at the defects of the prior art, the invention solves the problems that: provides a blood sampling device with stepless adjustment of measuring range.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a measuring range stepless regulation type blood sampling device comprises an air bag, a piston, a connecting ring, a connecting pipe, a capillary blood sampling pipe, a driving device, a resetting device and a floating mechanism; the upper end of the air bag is communicated with a connecting ring; a piston is arranged on one side of the upper end of the connecting ring; the piston is embedded into the upper end of the connecting ring in a sealing manner; the lower end of the air bag is communicated with and provided with a connecting pipe; the lower end of the connecting pipe is inserted into and connected with the capillary blood collection pipe; the upper end of the capillary blood collection tube is inserted into the connecting tube, and the lower end of the capillary blood collection tube extends to the lower part of the connecting tube; the floating mechanism comprises a telescopic ring, an elastic membrane and a moving pipe; the side part of the capillary blood collecting tube is provided with an installation opening; the installation opening is provided with an elastic membrane for sealing connection; the moving pipe is penetrated, sealed and fixed in the middle of the elastic membrane; the inner end of the moving tube extends into the capillary blood collection tube, and the outer end of the moving tube extends to the outer side of the capillary blood collection tube; the periphery of the inner side of the bottom of the connecting pipe is hermetically connected with the outer side of the periphery of the capillary blood collection pipe through a telescopic ring; the driving device is arranged on one side of the connecting pipe and one side of the capillary blood collection pipe; the resetting device is arranged at the lower side part of the capillary blood collection tube; the driving device drives the lower end of the connecting pipe to press against the movable pipe to move; the reset device is elastically reset and pressed on the lower side of the movable tube.

Furthermore, the driving device comprises a threaded cylinder, a connecting screw rod and a positioning plate; the threaded cylinder is arranged on one side of the outer part of the connecting pipe; the positioning plate is arranged on one side of the outer part of the capillary blood collection tube; the upper end of the connecting screw rod is in threaded rotary connection with the threaded cylinder; the lower end of the connecting screw rod is rotatably clamped at the upper end of the positioning plate.

Furthermore, the reset device comprises a guide cylinder, a guide post and an elastic pressing piece; the guide cylinder is arranged on the outer side of the lower part of the capillary blood collection tube; the elastic pressing piece is arranged in the guide cylinder; the lower end of the guide post is inserted into the guide cylinder and is pressed against the upper end of the elastic pressing piece; the upper end of the guide post is pressed against the lower side of the movable pipe.

Furthermore, a positioning block is arranged on the lower side of the moving pipe; the lower end of the positioning block is provided with a positioning hole; the upper end of the guide post is inserted into and clamped in the positioning hole of the positioning block.

Furthermore, the telescopic ring is a corrugated pipe.

Further, the mounting opening is of a rectangular structure.

Further, the elastic membrane is made of high-elasticity rubber materials.

The invention has the advantages of

1. According to the invention, the connecting screw is clamped and rotated on the positioning plate, the threaded cylinder is driven to move up and down through the thread meshing principle, so that the connecting pipe is driven to move up and down, when the connecting pipe moves downwards, the lower end of the connecting pipe presses against the moving pipe to move downwards, so that the moving pipe presses against the guide post to move downwards on the elastic membrane, and when the connecting pipe moves upwards, the elastic pressing piece presses against the guide post upwards, so that the guide post presses against the moving pipe upwards to move the moving pipe upwards on the elastic membrane, so that the aim of moving the moving pipe up and down on the elastic membrane is fulfilled, and the technical effect of stepless capacity adjustment is realized.

2. When the piston is embedded into the upper end of the connecting ring in a sealing connection manner, a closed form is formed, and when blood is collected by the capillary principle of the capillary blood collection tube, the blood collection is automatically stopped when the blood reaches the opening of the moving tube in the capillary blood collection tube, so that small-range blood collection is formed; and after the piston is opened from the upper end of the connecting ring, a communicated form is formed, so that blood can continue to be upwards collected until the whole capillary blood collection tube is full of blood after reaching the opening of the moving tube in the capillary blood collection tube, a large-range blood collection device is formed, two blood collection devices with different ranges are formed, and the use is very flexible.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is a side view of the structure of fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, a range stepless adjustment type blood sampling device comprises anair bag 1, a piston 3, a connectingring 2, a connectingpipe 4, a capillaryblood sampling pipe 5, adriving device 7, aresetting device 8 and afloating mechanism 6; the upper end of theair bag 1 is communicated with a connectingring 2; a piston 3 is arranged on one side of the upper end of the connectingring 2; the piston 3 is embedded in the upper end of the connectingring 2 and is connected with the inner part of the upper end of the connecting ring in a sealing way; the lower end of theair bag 1 is communicated with and provided with a connectingpipe 4; the lower end of the connectingpipe 4 is inserted into and connected with a capillaryblood collection pipe 5; the upper end of the capillaryblood collection tube 5 is inserted into the connectingtube 4, and the lower end of the capillaryblood collection tube 5 extends to the lower part of the connectingtube 4; thefloating mechanism 6 comprises atelescopic ring 61, anelastic membrane 62 and a movingpipe 63; the side of the capillaryblood collection tube 5 is provided with aninstallation opening 51; theinstallation opening 51 is provided with anelastic membrane 62 for sealing connection; the movingpipe 63 is connected in a penetrating and sealing way and fixed in the middle of theelastic membrane 62; the inner end of themoving tube 63 extends into the capillaryblood collection tube 5, and the outer end extends to the outer side of the capillaryblood collection tube 5; the periphery of the inner side of the bottom of the connectingpipe 4 is hermetically connected with the outer side of the periphery of the capillaryblood collection pipe 5 through atelescopic ring 61; thedriving device 7 is arranged at one side of the connectingpipe 4 and the capillaryblood collection pipe 5; the resettingdevice 8 is arranged at the lower side part of the capillaryblood collection tube 5; thedriving device 7 drives the lower end of the connectingpipe 4 to press against the movingpipe 63 to move; thereset device 8 is elastically reset and pressed on the lower side of themovable tube 63.

As shown in fig. 1 to 3, it is further preferable that thedriving device 7 includes a threadedcylinder 71, a connectingscrew 72, and apositioning plate 73; thethread cylinder 71 is arranged on one side of the outer part of the connectingpipe 4; thepositioning plate 73 is arranged at one side of the outside of the capillaryblood collection tube 5; the upper end of the connectingscrew rod 72 is in threaded rotary connection with the threadedcylinder 71; the lower end of the connectingscrew rod 72 is rotatably clamped at the upper end of thepositioning plate 73. Further, theresetting device 8 comprises aguide cylinder 81, aguide post 83 and an elastic pressing piece 82; theguide cylinder 81 is installed at the outer side of the lower part of the capillaryblood collection tube 5; the elastic pressing piece 82 is arranged in theguide cylinder 81; the lower end of theguide post 83 is inserted into theguide cylinder 81 and the lower end of theguide post 83 is pressed against the upper end of the elastic pressing piece 82; the upper end of theguide post 83 is pressed against the lower side of the movingpipe 63. Furthermore, apositioning block 631 is arranged on the lower side of the movingpipe 63; the lower end of thepositioning block 631 is provided with a positioning hole; the upper end of theguide post 83 is inserted into the positioning hole of thepositioning block 631 in a clamping manner. Further, thetelescopic ring 61 is a bellows. Further, themounting opening 51 has a rectangular structure. Further, theelastic membrane 62 is made of an elastic rubber material.

According to the invention, the connectingscrew 72 is clamped and rotated on thepositioning plate 73, the threadedcylinder 71 is driven to move up and down through the thread meshing principle, so that the connectingpipe 4 is driven to move up and down, when the connectingpipe 4 moves downwards, the lower end of the connectingpipe 4 presses against themovable pipe 63 to move downwards, so that themovable pipe 63 presses against the upper end of theguide post 83 to move downwards on theelastic membrane 62, and when the connectingpipe 4 moves upwards, the elastic pressing piece 82 presses against theguide post 83 upwards, so that the guide post 83 presses against themovable pipe 63 upwards, so that themovable pipe 63 moves upwards on theelastic membrane 62, and therefore, the aim of moving themovable pipe 63 up and down on theelastic membrane 62 is fulfilled, and the technical effect of stepless capacity adjustment is achieved. When the piston 3 is embedded into the upper end of the connectingring 2 in a sealing connection mode, a closed mode is formed, and when blood is collected through the capillary principle of the capillaryblood collection tube 5, blood collection is automatically stopped when the blood reaches the opening of themoving tube 63 of the capillaryblood collection tube 5, so that small-range blood collection is formed; and when the piston 3 is opened from the upper end of the connectingring 2, a communicated form is formed, so that blood can continue to be upwards collected until the whole capillaryblood collection tube 5 is filled with the blood after reaching the opening of the movingtube 63 in the capillaryblood collection tube 5, and the blood is collected in a large range.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. A range stepless regulation type blood sampling device is characterized by comprising an air bag, a piston, a connecting ring, a connecting pipe, a capillary blood sampling pipe, a driving device, a resetting device and a floating mechanism; the upper end of the air bag is communicated with a connecting ring; a piston is arranged on one side of the upper end of the connecting ring; the piston is embedded into the upper end of the connecting ring in a sealing manner; the lower end of the air bag is communicated with and provided with a connecting pipe; the lower end of the connecting pipe is inserted into and connected with the capillary blood collection pipe; the upper end of the capillary blood collection tube is inserted into the connecting tube, and the lower end of the capillary blood collection tube extends to the lower part of the connecting tube; the floating mechanism comprises a telescopic ring, an elastic membrane and a moving pipe; the side part of the capillary blood collecting tube is provided with an installation opening; the installation opening is provided with an elastic membrane for sealing connection; the moving pipe is penetrated, sealed and fixed in the middle of the elastic membrane; the inner end of the moving tube extends into the capillary blood collection tube, and the outer end of the moving tube extends to the outer side of the capillary blood collection tube; the periphery of the inner side of the bottom of the connecting pipe is hermetically connected with the outer side of the periphery of the capillary blood collection pipe through a telescopic ring; the driving device is arranged on one side of the connecting pipe and one side of the capillary blood collection pipe; the resetting device is arranged at the lower side part of the capillary blood collection tube; the driving device drives the lower end of the connecting pipe to press against the movable pipe to move; the reset device is elastically reset and pressed on the lower side of the movable tube.

2. The range stepless adjustment type blood sampling device as claimed in claim 1, wherein the driving device comprises a threaded cylinder, a connecting screw rod and a positioning plate; the threaded cylinder is arranged on one side of the outer part of the connecting pipe; the positioning plate is arranged on one side of the outer part of the capillary blood collection tube; the upper end of the connecting screw rod is in threaded rotary connection with the threaded cylinder; the lower end of the connecting screw rod is rotatably clamped at the upper end of the positioning plate.

3. The stepless range adjusting type blood collecting device as claimed in claim 1, wherein the resetting device comprises a guide cylinder, a guide post and an elastic pressing part; the guide cylinder is arranged on the outer side of the lower part of the capillary blood collection tube; the elastic pressing piece is arranged in the guide cylinder; the lower end of the guide post is inserted into the guide cylinder and is pressed against the upper end of the elastic pressing piece; the upper end of the guide post is pressed against the lower side of the movable pipe.

4. The stepless range adjusting type blood collecting device as claimed in claim 3, wherein a positioning block is arranged on the lower side of the moving pipe; the lower end of the positioning block is provided with a positioning hole; the upper end of the guide post is inserted into and clamped in the positioning hole of the positioning block.

5. The range stepless adjustment type blood sampling device as claimed in claim 1, wherein the telescopic ring is a corrugated tube.

6. The range stepless adjustment type blood collecting device as claimed in claim 1, wherein the mounting opening is rectangular.

7. The range stepless adjustment type blood collecting device as claimed in claim 1, wherein the elastic membrane is made of high elastic rubber material.

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