CN117860247A - Negative pressure drainage type blood sampling device - Google Patents

Negative pressure drainage type blood sampling device Download PDF

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Publication number
CN117860247A
CN117860247A CN202410269067.9A CN202410269067A CN117860247A CN 117860247 A CN117860247 A CN 117860247A CN 202410269067 A CN202410269067 A CN 202410269067A CN 117860247 A CN117860247 A CN 117860247A
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CN
China
Prior art keywords
frame
fixing
sliding
fixedly connected
ring
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CN202410269067.9A
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Chinese (zh)
Inventor
骆立钢
孙筱韵
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Taizhou Alston Biotechnology Co ltd
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Taizhou Alston Biotechnology Co ltd
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Priority to CN202410269067.9A priority Critical patent/CN117860247A/en
Publication of CN117860247A publication Critical patent/CN117860247A/en
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Abstract

The invention relates to the technical field of medical equipment, in particular to a negative pressure drainage type blood sampling device. The device comprises a frame, the frame has solid fixed ring through the mounting bracket rigid coupling, be equipped with the through-hole that circumference array distributes on the solid fixed ring, the intra-annular rotation of fixed is connected with the dwang, the swivelling joint has first fixed shell, first fixed shell rigid coupling have through the mounting bracket with the go-between of solid fixed ring rigid coupling, the inboard rigid coupling of go-between has first gasbag, the rigid coupling have with the go-between that first fixed shell rotates to be connected in the dwang. According to the invention, fingers of different patients are fixed through the first air bag, and the negative pressure is extracted to tighten the skin of the finger belly, so that the skin penetration of the blood taking needle is simpler, the penetration depth of the blood taking needle is easier to control, the penetration depths of different patients in the blood taking process are all in a stable range, and a good environment is provided for subsequent blood taking.

Description

Negative pressure drainage type blood sampling device
Technical Field
The invention relates to the technical field of medical equipment, in particular to a negative pressure drainage type blood sampling device.
Background
Blood routine is a routine clinical examination for assessing the overall health condition of the body and detecting possible diseases, especially in specific situations, such as infants, children, or some special patients, which are not suitable for intravenous blood sampling, but rather finger blood sampling is more convenient and rapid, the existing finger blood sampling technology is that medical staff performs manual blood sampling operation, when the medical staff punctures fingers of different patients, skin at finger belly of the fingers with different hardness can affect the puncture depth of the medical staff, if the puncture is shallower, the bleeding amount is insufficient, long-time finger squeezing operation is often required, so that discomfort of the patients is increased, if the puncture is deeper, pain of the patients is increased during the puncture, and the wound healing speed of the patients after the puncture is slowed down.
Disclosure of Invention
The invention provides a negative pressure drainage type blood taking device capable of controlling puncture depth, which is used for solving the problem that skin hardness influences the puncture depth during blood taking.
The technical scheme of the invention is as follows: the utility model provides a blood sampling device of negative pressure drainage formula, includes the frame, the frame has solid fixed ring through the mounting bracket rigid coupling, be equipped with the through-hole that circumference array distributes on the solid fixed ring, gu rotate in the fixed ring and be connected with the rotating block, the rotating block internal rotation is connected with first fixed shell, first fixed shell rigid coupling have through the mounting bracket with the go-between of solid fixed ring rigid coupling, the inboard rigid coupling of go-between has first gasbag, the rigid coupling have with first fixed shell rotates the go-between of being connected, the go-between with first gasbag rotates to be connected, first gasbag with all be equipped with the through-hole on the first fixed shell, go-between sliding connection has the heparin tube that circumference array distributes, the rigid coupling has the second fixed shell that circumference array distributes in the rotating block, the through-hole on the first fixed shell with the through-hole all with adjacent on the fixed ring the second fixed shell intercommunication, the second fixed shell sliding connection has the first gasbag, the needle with be provided with the spring between the rotating block internal fixation have with the first fixed shell rotates the go-between the rotor, the first fixed ring has the electric motor-driven ring to be used for the fixed link to be used for the fixed push rod to touch the fixed mechanism of the fixed push rod of the fixed finger of the fixed device of the blood sampling of the device of the blood sampling.
As a preferable technical scheme of the invention, the blood collection tube is internally and slidably connected with a piston, both ends of the blood collection tube are provided with through holes, and the diameters of the through holes at both ends of the blood collection tube are smaller than the inner diameter of the blood collection tube, so as to prevent blood from overflowing.
As a preferable technical scheme of the invention, the negative pressure fixing mechanism comprises a fastening air pump, the fastening air pump is fixedly connected to one side, far away from the rack, of the fixing ring through a mounting frame, a spring button is arranged on the fastening air pump, the spring button is in sliding connection with the first air bag, a partition plate in mirror image distribution is fixedly connected to one side, close to the rotating ring, of the connecting ring, the first fixing shell, the connecting ring, the first air bag and the rotating ring jointly form a sealing chamber, the sealing chamber is jointly divided into an absorbing chamber and a supporting chamber by the partition plate in mirror image distribution, the upper side chamber is the absorbing chamber, the lower side chamber is the supporting chamber, an air inlet pipe of the fastening air pump is communicated with the absorbing chamber, and an air outlet pipe of the fastening air pump is communicated with the supporting chamber.
As a preferable technical scheme of the invention, the blood sampling mechanism comprises first fixing frames distributed in a circumferential array, wherein the first fixing frames distributed in the circumferential array are fixedly connected to one side, far away from the connecting ring, of the rotating ring, a traction rope is slidably connected to the first fixing frames, a first limiting frame is fixedly connected to the traction rope, the first limiting frame is in limiting fit with the adjacent blood sampling tube, a spring is arranged between the first limiting frame and the adjacent first fixing frames, a fixing frame is fixedly connected to the first fixing frames through a mounting rod, a sliding plate is slidably connected to the fixing frame, a spring is arranged between the fixing frame and the adjacent sliding plate, the sliding plate is fixedly connected to one end, far away from the adjacent first limiting frame, of the traction rope, a limiting rod is fixedly connected to one side, close to the adjacent sliding plate, of the telescopic end of the first electric push rod, an elastic plate is fixedly connected to the sliding plate, and the sliding plate is in limiting fit with the elastic plate.
As a preferable technical scheme of the invention, the switching mechanism comprises a motor, the motor is fixedly connected to the frame through a mounting frame, a bevel gear is arranged on an output shaft of the motor, a bevel gear ring is fixedly connected to one side of the rotating block, which is far away from the rotating ring, the bevel gear of the output shaft of the motor is meshed with the bevel gear ring, a mirror-distributed second fixing frame is fixedly connected to one side of the fixing ring, which is far away from the bevel gear ring, the mirror-distributed second fixing frame is jointly and slidably connected with a first limiting block, a spring is arranged between the second fixing frame and the first limiting block, a pipeline for communicating with an external air pump is arranged on one side of the first limiting block, an arc-shaped limiting groove is arranged on the first limiting block, and one side of the blood collection tube, which is far away from the rotating ring, is in limiting fit with the arc-shaped limiting groove on the first limiting block.
As a preferred technical scheme of the invention, the automatic blood sampling machine further comprises an feeding and discharging mechanism for assisting feeding and discharging, wherein the feeding and discharging mechanism is arranged on the frame, the feeding and discharging mechanism comprises a second electric push rod, the second electric push rod is fixedly connected with the frame through a mounting rod, a first fixing pipe is fixedly connected with a fixing ring, the first fixing pipe is communicated with adjacent through holes on the fixing ring, a sliding frame is fixedly connected with the first fixing pipe, the first fixing pipe is provided with through holes communicated with the sliding frame, the sliding frame is connected with a first sliding frame in a sliding manner, tension springs are arranged between the first sliding frame and the sliding frame, the blood sampling needles distributed at equal intervals are also connected in the sliding frame in a sliding manner, and the first sliding frame is in contact fit with the adjacent blood sampling needles.
As a preferable technical scheme of the invention, a needle cap is arranged on a part of the blood taking needles which are equidistantly distributed in the sliding frame, a second limiting block which is in mirror image distribution is fixedly connected to one side of the sliding frame, which is far away from the frame, the second limiting block is in limiting fit with the adjacent needle cap, and the frame is fixedly connected with a first collecting shell.
As a preferable technical scheme of the invention, the fixing ring is fixedly connected with a second fixing pipe, the second fixing pipe is communicated with the adjacent through hole on the fixing ring, one side of the frame, which is close to the second fixing pipe, is fixedly connected with a third fixing shell, the second fixing pipe is communicated with the third fixing shell, and a second collecting shell is slidably connected in the third fixing shell.
As a preferred technical scheme of the invention, the blood collection device further comprises an extrusion mechanism for assisting blood collection, the extrusion mechanism is arranged on the frame, the extrusion mechanism comprises a third fixing frame, the third fixing frame is fixedly connected with the frame, a third electric push rod is fixedly connected with the third fixing frame, a second sliding frame is fixedly connected with the telescopic end of the third electric push rod, through holes distributed in a circumferential array are formed in the second sliding frame, the second sliding frame is slidably connected with a sliding shell, second air bags distributed in mirror images are rotatably connected in the sliding shell through mounting blocks, the second air bags distributed in mirror images are jointly rotatably connected and communicated with a three-way pipe, the three-way pipe is fixedly connected with the sliding shell, an electromagnetic valve is arranged in the three-way pipe, and the three-way pipe is communicated with an air outlet pipe of the fastening air pump through a pipeline.
As a preferable technical scheme of the invention, the second air bags are rotationally connected and communicated with a communicating pipe, the sliding shell is fixedly connected with third air bags distributed in a circumferential array, the sliding shell is provided with through holes distributed in a circumferential array, the third air bags are communicated with adjacent through holes on the sliding shell, the communicating pipe is communicated and matched with the adjacent through holes on the second sliding frame, the through holes on the second sliding frame are communicated and matched with the adjacent through holes on the sliding shell, one side of the third fixing frame, which is close to the rotating block, is fixedly connected with a second limiting frame distributed in a circumferential array, and the second limiting frame is in limiting and matched with the adjacent third air bags.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the fingers of different patients are fixed through the first air bag, and the negative pressure is extracted to tighten the skin of the finger belly, so that the skin penetration of the blood taking needle is simpler, the penetration depth of the blood taking needle is easier to control, the penetration depths of different patients in the blood taking process are all in a stable range, and a good environment is provided for the subsequent blood taking; the blood of the patient is sucked through the matching of the blood collection tube and the piston, and the blood of the patient is not easy to flow out after collection under the reduction of the port at the rear end of the blood collection tube and the suction of the piston, so that the integrity of the sample is ensured and the pollution caused by the dripping of the blood of the patient is prevented; the first sliding frame is matched with the first fixing tube to automatically feed the blood taking needle, so that accidental injury of medical staff in mounting the blood taking needle is prevented, and meanwhile, the workload of the medical staff is reduced; the second air bags distributed in a mirror image manner are matched and continuously rotated, so that friction on the skin on the surface of the finger is reduced, and the finger is prevented from being damaged; the second air bags distributed in a mirror image mode are used for continuously and reciprocally switching the states and extruding and guiding blood in fingers, so that the blood collection process is quickened, and the working efficiency of the device is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of the rotational block and second stationary housing of the present invention in a position relationship;
FIG. 3 is a perspective cross-sectional view showing the positional relationship between a first housing and a first bladder in accordance with the present invention;
FIG. 4 is an exploded view of the negative pressure fixing mechanism of the present invention;
FIG. 5 is a perspective cross-sectional view of the mating relationship of the blood collection tube and the piston of the present invention;
FIG. 6 is a perspective sectional view of the lancing mechanism according to the present invention;
FIG. 7 is a perspective cross-sectional view of the sliding plate and spring plate mating relationship of the present invention;
FIG. 8 is a perspective sectional view of the loading and unloading mechanism of the present invention;
FIG. 9 is a schematic perspective view of the cooperating relationship between the cap and the second stopper;
FIG. 10 is a perspective cross-sectional view of the third stationary housing in mating relationship with the second collecting housing in accordance with the present invention;
FIG. 11 is a schematic perspective view of an extrusion mechanism according to the present invention;
fig. 12 is a perspective sectional view showing the fitting relationship between the communication tube and the third air bag according to the present invention.
Marked in the figure as: the device comprises a 1-frame, a 2-fixed ring, a 3-rotating block, a 4-first fixed shell, a 5-connecting ring, a 6-first air bag, a 7-rotating ring, an 8-blood collection tube, a 9-second fixed shell, a 10-blood collection needle, an 11-first electric push rod, a 12-piston, a 13-negative pressure fixed mechanism, 1301-fastening air pump, a 1302-spring button, a 1303-partition plate, a 14-blood collection mechanism, 1401-first fixed frame, 1402-traction rope, 1403-first limit frame, 1404-fixed frame, 1405-slide plate, 1406-limit rod, 1407-elastic plate, 15-switching mechanism, 1501-motor, 1502-conical ring, 1503-second fixed frame, 1504-first limit block, 16-feeding and discharging mechanism, 1601-second electric push rod, 1602-first fixed tube, 1603-slide frame, 1604-first slide frame, 1605-needle cap, 1606-second limit block, 1607-first collection shell, 1608-second fixed tube, 1609-third fixed shell, 1402-third fixed frame, 17-third limit frame, 17-third compression mechanism, 1706-third air bag, 1708-third compression mechanism, 1708-third air bag, 1707-third air bag, 1708-compression mechanism.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description, but does not limit the scope of protection and the application of the invention.
Example 1: 1-3 and 5, a negative pressure drainage type blood sampling device comprises a frame 1, wherein a fixed ring 2 is fixedly connected to the upper side of the frame 1 through a mounting frame, three through holes distributed in a circumferential array are arranged on the fixed ring 2, the angle deviation between the three through holes is 120 degrees, a rotating block 3 is rotatably connected to the inner side of the fixed ring 2, a first fixed shell 4 is rotatably connected to the inner side of the rotating block 3, a connecting ring 5 fixedly connected with the fixed ring 2 through the mounting frame is fixedly connected to the rear part of the inner side of the first fixed shell 4, a first air bag 6 for fixing fingers is fixedly connected to the inner side of the connecting ring 5, a rotating ring 7 is fixedly connected to the inner side of the rotating block 3 through a rotating ring 7, the inner side of the rotating ring 7 is rotatably connected with the first air bag 6, through holes are respectively arranged on the upper sides of the first air bag 6 and the first fixed shell 4, three blood sampling tubes 8 distributed in a circumferential array are slidably connected to the rotating ring 7, the middle part and the front side of the blood collection tube 8 are both provided with protruding blocks, the blood collection tube 8 is used for sucking and storing blood at a puncture position of a patient, the inner side of the rotating block 3 is fixedly connected with a second fixing shell 9 which is distributed in a circumferential array, the second fixing shell 9 is communicated with adjacent through holes on the fixing ring 2, the through holes on the upper side of the first fixing shell 4 are communicated with the adjacent second fixing shell 9, the inner side of the second fixing shell 9 is slidably connected with a blood collection needle 10, the blood collection needle 10 is an existing disposable medical product and is used for puncturing the finger of the patient, the three blood collection needles 10 and the first fixing shell 4 are respectively provided with a spring, the length of each spring is equal to the length of the second fixing shell 9, the upper side of the fixing ring 2 is fixedly connected with a first electric push rod 11 through a mounting bracket, the telescopic end of the first electric push rod 11 is in contact fit with the adjacent blood collection needle 10, the blood collection tube 8 is slidably connected with a piston 12, through holes are formed in two ends of the blood collection tube 8, the diameter of the through holes in two ends of the blood collection tube 8 is smaller than that of the blood collection tube 8, the blood collection tube is used for preventing blood from overflowing, the fixing ring 2 is provided with a negative pressure fixing mechanism 13 used for fixing fingers of a patient, the rotating ring 7 is provided with a blood collection mechanism 14 used for collecting blood, and the stand 1 is provided with a switching mechanism 15 used for switching blood collection needles 10.
Referring to fig. 3 and 4, the negative pressure fixing mechanism 13 includes a fastening air pump 1301, the fastening air pump 1301 is fixedly connected to the upper side of the fixing ring 2 through a mounting frame, a spring button 1302 is disposed on the fastening air pump 1301, the spring button 1302 is slidably connected with the inner side of the first air bag 6, the spring button 1302 is used for controlling the working state of the fastening air pump 1301, two partition plates 1303 distributed in a left-right mirror image are fixedly connected to the front side of the connecting ring 5 and used for blocking air flow, the first fixing shell 4, the connecting ring 5, the first air bag 6 and the rotating ring 7 jointly form a sealing chamber, the two partition plates 1303 jointly partition the sealing chamber into a suction chamber and a bearing chamber respectively, wherein the upper chamber is the suction chamber, the lower chamber is the bearing chamber, the suction chamber is used for providing negative pressure environment and providing air for the bearing chamber, the bearing chamber is used for lifting fingers of a patient, the air inlet pipe of the fastening air pump 1301 is communicated with the suction chamber, and the air outlet pipe of the fastening air pump 1301 is communicated with the bearing chamber.
Referring to fig. 6 and 7, the blood sampling mechanism 14 includes first fixing frames 1401 distributed in a circumferential array, the first fixing frames 1401 distributed in a circumferential array are fixedly connected to the front side of the rotating ring 7, the first fixing frames 1401 are slidably connected with traction ropes 1402, the front ends of the traction ropes 1402 are fixedly connected with first limiting frames 1403, the first limiting frames 1403 are in limiting fit with bumps in the middle of the adjacent blood sampling tubes 8 and are used for driving the blood sampling tubes 8 to move backwards, springs are arranged between the first limiting frames 1403 and the adjacent first fixing frames 1401, the first fixing frames 1401 are fixedly connected with fixing frames 1404 through mounting rods, the inner sides of the fixing frames 1404 are slidably connected with sliding plates 1405, springs are arranged between the fixing frames, the sliding plates 1405 are fixedly connected with the upper ends of the adjacent traction ropes 1402, the front sides of telescopic ends of the first electric push rods 11 are fixedly connected with limiting rods 1406, the rear sides of the sliding plates 1405 are fixedly connected with elastic plates 1407, the sliding plates 1405 are in limiting fit with the elastic plates 1407, and the sliding plates 1407 are limited upwards, namely the elastic plates 1407 can bend downwards only under the action of external force.
Referring to fig. 3, 6 and 10, the switching mechanism 15 includes a motor 1501, the motor 1501 is fixedly connected to the upper side of the frame 1 through a mounting frame, a bevel gear is disposed on the front side of an output shaft of the motor 1501, the motor 1501 is located at the rear side of the rotating block 3, a bevel gear ring 1502 is fixedly connected to the rear side of the rotating block 3, the bevel gear of the output shaft of the motor 1501 is meshed with the bevel gear ring 1502, two second fixing frames 1503 distributed in a left-right mirror image manner are fixedly connected to the front side of the fixing ring 2, a first limiting block 1504 is slidingly connected to the two second fixing frames 1503, springs are disposed between the two second fixing frames 1503 and the first limiting block 1504, a pipeline communicated with an external air pump is disposed on the upper side of the first limiting block 1504, a cavity communicated with the pipeline on the upper side of the first limiting block 1504 is disposed in the first limiting block 1504, the cavity inside the first limiting block 1504 and the pipeline on the upper side of the first limiting block 1504 are used for connecting the external air pump with an adjacent blood sampling tube 8, thereby providing suction force for the blood sampling tube 8, an arc limiting groove is disposed on the first limiting block 1504, and the rear side of the blood sampling tube 8 is slidingly matched with the arc limiting groove on the first limiting block 1504.
When needs use this device to take a blood sample to the patient, medical staff inserts three heparin tube 8 respectively in the through-hole of circumference array distribution on the swivel ring 7, and medical staff pulls first spacing 1403 and its card in the lug department at adjacent heparin tube 8 middle part simultaneously, with the front side card of upside heparin tube 8 to the spacing inslot of first stopper 1504, and the heparin tube 8 installation is accomplished this moment.
When the blood taking tube 8 is installed, the blood taking step is started, the finger to be taken by the patient stretches into the inner side of the first air bag 6, the finger of the patient contacts and drives the spring button 1302 to move backwards along with the continuous backward movement of the finger until the spring button 1302 stops moving backwards, at this time, the spring button 1302 triggers the fastening air pump 1301, the fastening air pump 1301 starts and sucks air through the air inlet pipe, the suction cavity and the through holes on the first air bag 6, the sucked air is discharged into the bearing cavity through the air outlet pipe, the bearing cavity gradually increases along with the air injection, the lower side of the first air bag 6 expands upwards and drives the finger to move upwards until the finger belly of the finger of the patient plugs the through holes on the first air bag 6, the air pump 1301 continues to suck air along with the fastening air pump 1301, negative pressure gradually forms in the suction cavity until the negative pressure in the suction cavity reaches a set value, the fastening air pump 1301 stops working, and part of the finger belly blocking the through holes on the first air bag 6 is sucked by the negative pressure, so that the finger belly is tightly stressed by the skin of the negative pressure suction part, and the fixing step is completed at this time.
After the fixing step is finished, medical staff controls the telescopic end of the first electric push rod 11 to stretch out, the telescopic end of the first electric push rod 11 drives the upper blood taking needle 10 to move downwards, meanwhile, the spring between the upper blood taking needle 10 and the first fixing shell 4 is extruded until the telescopic end of the first electric push rod 11 stops moving downwards, at the moment, the telescopic end of the first electric push rod 11 drives the upper blood taking needle 10 to puncture the finger belly of a patient to tighten skin, then, medical staff controls the telescopic end of the first electric push rod 11 to move upwards and reset, at the moment, blood in the finger of the patient is attracted by negative pressure to flow out from the puncture part of the finger belly of the patient, different fingers are fixed through the first air bag 6, and the negative pressure is extracted to tighten the skin of the finger belly, so that the blood taking needle 10 is simpler, the puncture depth of the blood taking needle 10 is easier to control, the puncture depths of different patients in a stable range during blood taking, and good environments are provided for subsequent blood taking.
When the telescopic end of the first electric putter 11 moves downward, the telescopic end of the first electric putter 11 drives the stopper rod 1406 to move downward, taking the upper elastic plate 1407 as an example, as the stopper rod 1406 moves downward, the stopper rod 1406 contacts and presses the elastic plate 1407, thereby bending the elastic plate 1407 downward until the stopper rod 1406 loses contact with the elastic plate 1407, the elastic plate 1407 is reset, when the telescopic end of the first electric putter 11 moves upward, the telescopic end of the first electric putter 11 drives the stopper rod 1406 to move upward until the stopper rod 1406 contacts the lower side of the elastic plate 1407, the stopper rod 1406 presses the elastic plate 1407 upward, at this time, the sliding plate 1405 is pressed by the elastic plate 1407 to move upward, and presses the spring between the sliding plate 1405 and the fixed frame 1404, the sliding plate 1405 drives the first stopper 1403 to move backward through the traction rope 1402, the first stopper 1403 drives the blood collection tube 8 to move backward, the blood collection tube 8 drives the first limiting block 1504 to move backwards and extrudes the spring between the first fixing frame 1401 and the first limiting block 1403 until the telescopic end of the first electric push rod 11 is reset, at this time, the sliding plate 1405 moves upwards to the limit position and stops moving, the first limiting block 1403 drives the rear end of the blood collection tube 8 to move backwards and rapidly to the blood collection position of the finger belly of the patient, and the telescopic end of the first electric push rod 11 is reset (namely, the blood collection tube 10 moves upwards and resets after the puncture is completed) and moves backwards to be carried out simultaneously with the blood collection tube 8, so that the blood collection tube 8 timely draws blood at the puncture position of the finger belly to prevent the pollution of the blood to the device, the patient starts an external air pump and draws air between the blood collection tube 8 and the rear side of the piston 12 through the first limiting block 1504, the piston 12 moves forwards under negative pressure attraction, the piston 12 moves forwards and draws blood at the front side of the blood collection tube 8 through negative pressure, until the piston 12 moves forward to the extreme position, at which point blood collection is completed.
Then the user controls fastening air pump 1301 to transfer the air in the bearing cavity into the suction cavity, at this moment, the finger of the patient loses the fixation, the patient takes out the finger, the blood of the patient is sucked through the cooperation of the blood collection tube 8 and the piston 12, the port at the rear end of the blood collection tube 8 is reduced and the piston 12 is attracted, the blood of the patient is not easy to flow out after being collected, and the sample integrity is ensured and meanwhile the pollution caused by the blood drop of the patient is prevented.
After blood collection is finished, medical staff starts motor 1501, the output shaft of motor 1501 drives its upper bevel gear to rotate clockwise, bevel gear and bevel gear ring 1502 on the motor 1501 output shaft are meshed and drive rotary block 3 anticlockwise to rotate 120, rotary block 3 drives three heparin tube 8 anticlockwise to rotate 120, the heparin tube 8 that the upside was gathered completely slides out from the arc spout of first stopper 1504, simultaneously left side heparin tube 8 rotates to the arc spout of first stopper 1504, then medical staff stops motor 1501, when rotary block 3 anticlockwise rotates, rotary block 3 drives its three second fixed shell 9 synchronous rotation 120, wherein upper side second fixed shell 9 drives used heparin needle 10 anticlockwise to rotate 120, this moment used heparin needle 10 anticlockwise rotates to fixed ring 2 left downside through-hole department, this moment used heparin needle 10 loses the shielding of fixed ring 2, used heparin needle 10 and the spring between the first fixed shell 4 drive the lower left side of heparin tube 10 move, used lancet 10 is driven by spring force and self gravity to move down and carry out the processing in the outside under the drive of the spring force and collect blood collection, this blood collection step is accomplished to the patient, this blood collection device is finished to the rest of the blood collection step, the medical staff is finished to the blood collection device.
Example 2: on the basis of embodiment 1, please refer to fig. 2 and 8-10, further include an feeding and discharging mechanism 16 for assisting feeding and discharging, the feeding and discharging mechanism 16 is disposed on the frame 1, the feeding and discharging mechanism 16 includes a second electric push rod 1601, the second electric push rod 1601 is fixedly connected to the upper side of the frame 1 through a mounting rod, a first fixing tube 1602 is fixedly connected to the right lower side of the fixing ring 2, the first fixing tube 1602 is communicated with a through hole on the upper right lower side of the fixing ring 2, a sliding frame 1603 is fixedly connected to the rear side of the first fixing tube 1602, a through hole communicated with the sliding frame 1603 is disposed on the rear side of the first fixing tube 1602, the through hole area on the first fixing tube 1602 is larger than the longitudinal section area of the blood taking needle 10, for ensuring that the blood taking needle 10 smoothly passes through, the sliding frame 1603 is slidingly connected with a first sliding frame 1604, tension springs are disposed between the two, the inner side of the sliding frame 1603 is also slidingly connected with the blood taking needle 10 distributed at equal intervals, for replacing the blood taking needle 10 for the second fixing case 9, the first sliding frame 1604 is in contact fit with the blood taking needle 10 at the rearmost side, a part of the blood taking needles 10 which are distributed at equal intervals in the sliding frame 1603 and are positioned at the rear side of the second limiting block 1606 is provided with a needle cap 1605 for preventing puncture, the upper side of the sliding frame 1603 is fixedly connected with the second limiting block 1606 which is distributed in a mirror image manner, the upper side of the second limiting block 1606 is provided with an inclined plane, the inclined plane of the upper side of the second limiting block 1606 is in limit fit with the adjacent needle cap 1605, the upper side of the frame 1 is fixedly connected with a first collecting case 1607, the first collecting case 1607 is used for collecting the needle cap 1605, the left lower side of the fixing ring 2 is fixedly connected with a second fixing tube 1608, the second fixing tube 1608 is communicated with a through hole at the left lower side of the fixing ring 2, the upper side of the frame 1 is fixedly connected with a third fixing case 1609, the lower side of the second fixing tube 1609 is communicated with the third fixing case 1609, the inner side of the third fixing case 1609 is slidingly connected with a second collecting case 1610, the second collecting housing 1610 serves to collect the lancet 10 after being used.
When medical staff constantly takes blood to the patient, need medical staff constantly change blood taking needle 10, and when medical staff changes, probably because medical staff mishandling leads to blood taking needle 10 to stab itself, not only lead to the fact the damage to oneself, wasted medical resource moreover, in order to solve above-mentioned problem, need carry out following operation:
before taking a blood of a patient, a medical staff pulls the first sliding frame 1604 backward and stretches a tension spring between the first sliding frame 1604 and the sliding frame 1603, the medical staff sequentially installs the blood taking needle 10 with the needle cap 1605 in the sliding frame 1603, then the user releases the first sliding frame 1604, the first sliding frame 1604 drives the blood taking needle 10 with the needle cap 1605 in the sliding frame 1603 to move forward, the needle cap 1605 contacts with the inclined surface of the second limiting block 1606 and is limited and extruded by the inclined surface of the second limiting block 1606, the needle cap 1605 is gradually pulled out from the blood taking needle 10, the needle cap 1605 moves downwards into the first collecting shell 1607 by self gravity and is collected until the blood taking needle 10 at the forefront side moves forward into the first fixing tube 1602, and at this time, the installation of the blood taking needle 10 is completed.
When the motor 1501 drives the rotating block 3 to rotate 120 ° counterclockwise (after the single blood collection is completed), the used blood taking needle 10 rotates to the left lower side, the used blood taking needle 10 moves into the second fixing tube 1608 under the driving of the spring force and the driving of the self gravity, the used blood taking needle 10 moves downwards into the second collecting shell 1610 through the second fixing tube 1608 and is temporarily stored, and when the device is completed, the medical staff pulls the second collecting shell 1610 backwards and carries out centralized treatment on medical wastes (the used blood taking needle 10).
When the rotating block 3 rotates by 120 degrees anticlockwise again, the second fixed shell 9 positioned at the left lower side before rotating rotates to the right lower side, and does not contain the blood taking needle 10, medical staff controls the telescopic end of the second electric push rod 1601 to extend out, the telescopic end of the second electric push rod 1601 drives the blood taking needle 10 in the first fixed tube 1602 to move to the left upper side until the blood taking needle 10 moves into the second fixed shell 9 and presses a spring between the blood taking needle 10 and the first fixed shell 4 until the rotating block 3 rotates again, the medical staff controls the telescopic end of the second electric push rod 1601 to retract, when the telescopic end of the second electric push rod 1601 retracts, the blood taking needle 10 in the sliding frame 1603 is extruded by the first sliding frame 1604 to move into the first fixed tube 1602, then a user replaces the blood taking needle 10 by repeating the steps, automatic feeding is carried out on the blood taking needle 10 through the cooperation of the first sliding frame 1604 and the first fixed tube 1602, and the work load of the medical staff is relieved while the situation that the blood taking needle 10 is installed by medical staff is prevented from being accidentally injured.
Example 3: on the basis of embodiment 2, please refer to fig. 1, 11 and 12, further comprising an extrusion mechanism 17 for assisting blood sampling, wherein the extrusion mechanism 17 is disposed on the frame 1, the extrusion mechanism 17 comprises a third fixing frame 1701, the third fixing frame 1701 is fixedly connected to the upper side of the frame 1, a third electric push rod 1702 is fixedly connected to the right side of the third fixing frame 1701, a second sliding frame 1703 is fixedly connected to the telescopic end of the third electric push rod 1702, the second sliding frame 1703 is composed of a straight plate and a circular ring, through holes distributed in circumferential array are disposed on the second sliding frame 1703, the through holes of the second sliding frame 1703 are used for controlling the communication state of the communicating tube 1707 and the third air bag 1708, the outer side of the circular ring part of the second sliding frame 1703 is slidably connected with a sliding shell 1704, the inner ring of the sliding shell 1704 is rotatably connected with two second air bags 1705 distributed in up-down mirror image manner through a mounting block, two second air bags 1705 are connected together in a rotating way and communicated with a three-way pipe 1706 fixedly connected with a sliding shell 1704, an electromagnetic valve is arranged in the three-way pipe 1706, the three-way pipe 1706 is communicated with an air outlet pipe of a fastening air pump 1301 through a pipeline, the right side of the second air bags 1705 are connected in a rotating way and communicated with a communicating pipe 1707, the outer side of the outer ring of the sliding shell 1704 is fixedly connected with three third air bags 1708 distributed in a circumferential array way, the third air bags 1708 are used for changing the expansion state of the second air bags 1705, the sliding shell 1704 is provided with through holes distributed in the circumferential array way, the third air bags 1708 are communicated with adjacent through holes on the sliding shell 1704, the communicating pipe 1707 is communicated with adjacent through holes on the second sliding frame 1703, after the second sliding frame 1703 slides forwards relative to the sliding shell 1704, the through holes on the second sliding frame 1703 are communicated with adjacent through holes on the sliding shell 1704, the through hole on the second sliding frame 1703 is communicated with the adjacent through hole on the sliding shell 1704, a second limiting frame 1709 distributed in a circumferential array is fixedly connected to the rear side of the third fixing frame 1701, the second limiting frame 1709 is a wedge-shaped block, an inclined plane is arranged on the rear side of the second limiting frame 1709, and the inclined plane on the rear side of the second limiting frame 1709 is in limiting fit with the adjacent third air bag 1708.
When the fixing step is carried out, the finger belly of the patient is attracted and fixed by negative pressure, the bleeding amount of different patients after the finger is punctured is also different, if the blood sampling process time is longer, the uncomfortable feeling of the finger belly of the patient when the finger belly of the patient is attracted by the negative pressure can be enhanced, and the following operations are needed to be carried out for accelerating the blood sampling step:
before the fixing step is performed, the patient first passes the finger through the third fixing frame 1701 and the sliding shell 1704, and then the user performs the fixing step, during the fixing step, the user opens the electromagnetic valve in the three-way tube 1706, and the fastening air pump 1301 simultaneously inputs air into the upper and lower two second air bags 1705 through the pipeline and the three-way tube 1706, so that the upper and lower two second air bags 1705 are simultaneously inflated, and after the fixing step is finished, the two second air bags 1705 synchronously stop inflation and clamp the finger, that is, the degree of inflation of the two second air bags 1705 is proportional to the thickness of the finger during the fixing step.
When the blood sampling step is performed, the user controls the extension of the extension end of the third electric putter 1702, the extension end of the third electric putter 1702 drives the second sliding frame 1703 to move backward, the second sliding frame 1703 drives the sliding shell 1704 to move backward, the sliding shell 1704 drives the two second air bags 1705, the three third air bags 1708 and the three-way pipe 1706 to move backward synchronously, and when the two second air bags 1705 move forward, the two second air bags 1705 squeeze and drive blood in fingers to move backward into the finger belly, so that the blood outflow is quickened, and the blood sampling step is quickened.
When the sliding housing 1704 moves backward to the limit position, the user controls the telescopic end of the third electric putter 1702 to retract, the telescopic end of the third electric putter 1702 drives the second sliding frame 1703 to move forward, because the sliding housing 1704 and the finger are in the fastening state at this time, the second sliding frame 1703 moves forward to the limit position of the sliding housing 1704 first, taking the upper side second air bag 1705 as an example, at this time, the air in the second air bag 1705 flows into the third air bag 1708 through the communicating tube 1707, the through hole on the second sliding frame 1703 and the through hole on the sliding housing 1704, so that the pressure of the two second air bags 1705 to the finger is relieved, the sliding housing 1704 drives the third air bag 1708 to move forward and contact the second limiting frame 1709 as the sliding housing 1704 continues to move forward, the air in the third air bag 1708 is pressed by the second limiting frame 1709, flows back into the second air bag 1705 through the communicating tube 1707, the through hole on the second sliding frame 1703 and the through hole on the sliding housing 1704, the second air bag expands again, the finger is repeatedly fastened, and then the blood is repeatedly squeezed by the medical staff to the finger is repeatedly perform the image collection device, and the blood collection device is not required to be in the state of the blood collection device is repeatedly carried out, and the blood collection device is not in the blood collection device is in the state of the process of the blood collection device is improved.
After blood collection, the user opens the solenoid valve inside the tee 1706, and the fastening air pump 1301 draws out the air in the two second air bags 1705 through the tee 1706 and the tube, and then the patient draws out the fingers.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (10)

1. A negative pressure drainage type blood sampling device, which is characterized in that: the blood taking needle comprises a frame (1), wherein a fixing ring (2) is fixedly connected to the frame (1) through a mounting frame, through holes distributed in a circumferential array are formed in the fixing ring (2), a rotating block (3) is rotationally connected to the fixing ring (2), a first fixing shell (4) is rotationally connected to the rotating block (3), a connecting ring (5) fixedly connected to the fixing ring (2) through the mounting frame is fixedly connected to the first fixing shell (4), a first air bag (6) is fixedly connected to the inner side of the connecting ring (5), a rotating ring (7) rotationally connected to the first fixing shell (4) is fixedly connected to the rotating block (3), the rotating ring (7) is rotationally connected to the first air bag (6), through holes are formed in the first fixing shell (4), a blood taking tube (8) distributed in the circumferential array is slidingly connected to the rotating ring (7), a second fixing shell (9) distributed in the circumferential array is fixedly connected to the rotating block (3), a second fixing shell (9) fixedly connected to the inner side of the connecting ring (3), the first fixing shell (4) is rotationally connected to the first fixing shell (6), the first fixing shell (4) is rotationally connected to the first fixing shell (4), and the second fixing shell (10) is fixedly connected to the first fixing shell (10), and the second fixing shell (10), the blood collection device is characterized in that a first electric push rod (11) is fixedly connected to the fixed ring (2) through a mounting frame, the telescopic end of the first electric push rod (11) is in contact fit with the adjacent blood collection needle (10), the fixed ring (2) is provided with a negative pressure fixing mechanism (13) for fixing fingers, the rotating ring (7) is provided with a blood collection mechanism (14) for assisting blood collection, and the frame (1) is provided with a switching mechanism (15) for switching the blood collection needle (10).
2. The negative pressure drainage type blood collection device according to claim 1, wherein: the blood collection tube (8) is connected with a piston (12) in a sliding manner, through holes are formed in two ends of the blood collection tube (8), and the diameter of the through holes in two ends of the blood collection tube (8) is smaller than the diameter of the inside of the blood collection tube (8) and used for preventing blood from overflowing.
3. The negative pressure drainage type blood collection device according to claim 1, wherein: negative pressure fixed establishment (13) are including fastening air pump (1301), fastening air pump (1301) pass through the mounting bracket rigid coupling in fixed ring (2) keep away from one side of frame (1), be provided with spring button (1302) on fastening air pump (1301), spring button (1302) with first balloon (6) sliding connection, go-between (5) are close to one side rigid coupling of rotor ring (7) has partition plate (1303) that mirror image distributes, first fixed shell (4) go-between (5) first gasbag (6) with rotor ring (7) form sealed cavity jointly, mirror image distribution partition plate (1303) are with sealed cavity separate respectively into suction cavity and bearing cavity, and wherein upside cavity is suction cavity, and downside cavity is the bearing cavity, the intake pipe of fastening air pump (1301) communicates with suction cavity, the outlet duct and the bearing cavity intercommunication of fastening air pump (1301).
4. A negative pressure drainage type blood collection device according to claim 3, wherein: the blood sampling mechanism (14) comprises a first fixing frame (1401) distributed in a circumferential array, the first fixing frames (1401) distributed in the circumferential array are fixedly connected to one side of a rotating ring (7) away from the connecting ring (5), the first fixing frames (1401) are connected with traction ropes (1402) in a sliding mode, the traction ropes (1402) are fixedly connected with first limiting frames (1403), the first limiting frames (1403) are in limiting fit with adjacent blood sampling tubes (8), springs are arranged between the first limiting frames (1403) and the first fixing frames (1401), the first fixing frames (1401) are fixedly connected with fixing frames (1404) through mounting rods, sliding plates (1405) are connected to the fixing frames (1404) in a sliding mode, springs are arranged between the fixing frames (1404) and the adjacent sliding plates (1405), the sliding plates (1405) are fixedly connected to one ends of the adjacent traction ropes (1402) away from the first limiting frames (1403), the first electric push rods (11) are close to the elastic plates (1405) and are fixedly connected to one sides of the sliding plates (1405) in a telescopic mode, and the elastic plates (1407) are fixedly connected to one sides of the sliding plates (1407).
5. The negative pressure drainage type blood collection device according to claim 4, wherein: the switching mechanism (15) comprises a motor (1501), the motor (1501) pass through the mounting bracket rigid coupling in frame (1), be equipped with the bevel gear on the output shaft of motor (1501), one side rigid coupling that rotor ring (7) was kept away from to rotor block (3) has bevel gear ring (1502), the bevel gear of motor (1501) output shaft with bevel gear ring (1502) meshing, solid fixed ring (2) are kept away from one side rigid coupling of bevel gear ring (1502) has second mount (1503) of mirror image distribution, the second mount (1503) of mirror image distribution sliding connection jointly has first stopper (1504), second mount (1503) with be provided with the spring between first stopper (1504), one side that first stopper (1504) was kept away from frame (1) is equipped with the pipeline that is used for with external intercommunication, be equipped with arc spacing groove on first stopper (1504), one side that rotor ring (7) was kept away from with on first stopper (1504) the arc spacing groove of cooperation.
6. The negative pressure drainage type blood collection device according to claim 5, wherein: the automatic blood sampling device is characterized by further comprising an upper discharging mechanism (16) for assisting in feeding and discharging, the upper discharging mechanism (16) is arranged on the frame (1), the upper discharging mechanism (16) comprises a second electric push rod (1601), the second electric push rod (1601) is fixedly connected with the frame (1) through a mounting rod, a first fixing tube (1602) is fixedly connected with the fixing ring (2) through holes adjacent to the fixing ring (2), a sliding frame (1603) is fixedly connected with the first fixing tube (1602), the first fixing tube (1602) is provided with a through hole communicated with the sliding frame (1603), the sliding frame (1603) is connected with a first sliding frame (1604) in a sliding mode, tension springs are arranged between the sliding frames (1603), the same sliding connection of the sliding frames (1603) is provided with blood sampling needles (10) distributed at equal intervals, and the first sliding frames (1604) are matched with the adjacent blood sampling needles (10).
7. The negative pressure drainage type blood collection device according to claim 6, wherein: the blood taking needle comprises a blood taking needle (10) and is characterized in that a needle cap (1605) is mounted on part of the blood taking needle (10) which is distributed at equal intervals in a sliding frame (1603), a second limiting block (1606) which is distributed in a mirror image mode is fixedly connected to one side, away from the frame (1), of the sliding frame (1603), the second limiting block (1606) is in limiting fit with the adjacent needle cap (1605), and a first collecting shell (1607) is fixedly connected to the frame (1).
8. The negative pressure drainage type blood collection device according to claim 7, wherein: the fixed ring (2) fixedly connected with a second fixed tube (1608), the second fixed tube (1608) is communicated with the adjacent through hole on the fixed ring (2), a third fixed shell (1609) is fixedly connected on one side of the frame (1) close to the second fixed tube (1608), the second fixed tube (1608) is communicated with the third fixed shell (1609), and a second collecting shell (1610) is connected in a sliding manner in the third fixed shell (1609).
9. The negative pressure drainage type blood collection device according to claim 8, wherein: still including being used for supplementary blood sampling extrusion mechanism (17), extrusion mechanism (17) set up in frame (1), extrusion mechanism (17) including third mount (1701), third mount (1701) rigid coupling in frame (1), third mount (1701) rigid coupling has third electric putter (1702), the flexible end rigid coupling of third electric putter (1702) has second carriage (1703), be equipped with the through-hole that circumference array distributes on second carriage (1703), second carriage (1703) sliding connection has slide case (1704), be connected with second gasbag (1705) that mirror image distributes through the installation piece rotation in slide case (1704), mirror image distribution second gasbag (1705) joint rotation and intercommunication have three-way pipe (1706), three-way pipe (1706) with slide case (1704) rigid coupling, be equipped with solenoid valve (1706) in the three-way pipe (1706) through pipeline with fastening air outlet duct (1301) intercommunication.
10. The negative pressure drainage type blood collection device according to claim 9, wherein: the second air bag (1705) is rotationally connected and communicated with the communicating pipe (1707), a third air bag (1708) distributed in a circumferential array is fixedly connected to the sliding shell (1704), through holes distributed in the circumferential array are formed in the sliding shell (1704), the third air bag (1708) is communicated with adjacent through holes in the sliding shell (1704), the communicating pipe (1707) is communicated with adjacent through holes in the second sliding frame (1703), the through holes in the second sliding frame (1703) are communicated with adjacent through holes in the sliding shell (1704), a second limiting frame (1709) distributed in the circumferential array is fixedly connected to one side of the third fixing frame (1701) close to the rotating block (3), and the second limiting frame (1709) is in limiting fit with the adjacent third air bag (1708).
CN202410269067.9A 2024-03-11 2024-03-11 Negative pressure drainage type blood sampling device Pending CN117860247A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN212234457U (en) * 2020-03-20 2020-12-29 华中科技大学同济医学院附属协和医院 Domestic automatic blood glucose testing hemostix
CN213309760U (en) * 2020-08-28 2021-06-01 刘涛 Infant's finger blood sampling auxiliary device
CN215128755U (en) * 2021-03-13 2021-12-14 南华大学 Automatic blood sampling equipment for hospital
CN115517675A (en) * 2022-06-08 2022-12-27 李贵玉 Multifunctional finger blood sampling device
US20230041849A1 (en) * 2019-12-26 2023-02-09 Yunling Hao Capillary blood collecting device
CN117179763A (en) * 2023-09-27 2023-12-08 深圳市东汇精密机电有限公司 Fingertip blood sampling device for fixing hands of children
CN117582224A (en) * 2024-01-19 2024-02-23 佳木斯大学 Batch hemostix for medical pathology detection and use method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230041849A1 (en) * 2019-12-26 2023-02-09 Yunling Hao Capillary blood collecting device
CN212234457U (en) * 2020-03-20 2020-12-29 华中科技大学同济医学院附属协和医院 Domestic automatic blood glucose testing hemostix
CN213309760U (en) * 2020-08-28 2021-06-01 刘涛 Infant's finger blood sampling auxiliary device
CN215128755U (en) * 2021-03-13 2021-12-14 南华大学 Automatic blood sampling equipment for hospital
CN115517675A (en) * 2022-06-08 2022-12-27 李贵玉 Multifunctional finger blood sampling device
CN117179763A (en) * 2023-09-27 2023-12-08 深圳市东汇精密机电有限公司 Fingertip blood sampling device for fixing hands of children
CN117582224A (en) * 2024-01-19 2024-02-23 佳木斯大学 Batch hemostix for medical pathology detection and use method

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