CN112401884B - Blood taking needle suitable for arms and convenient for blood collection and use method thereof - Google Patents
Blood taking needle suitable for arms and convenient for blood collection and use method thereof Download PDFInfo
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- CN112401884B CN112401884B CN202011384268.1A CN202011384268A CN112401884B CN 112401884 B CN112401884 B CN 112401884B CN 202011384268 A CN202011384268 A CN 202011384268A CN 112401884 B CN112401884 B CN 112401884B
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- 239000008280 blood Substances 0.000 title claims abstract description 78
- 210000004369 blood Anatomy 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 19
- 210000004204 blood vessel Anatomy 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 210000003462 vein Anatomy 0.000 claims description 12
- 230000008569 process Effects 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/15003—Source of blood for venous or arterial blood
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150748—Having means for aiding positioning of the piercing device at a location where the body is to be pierced
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
- A61B5/154—Devices using pre-evacuated means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
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- General Health & Medical Sciences (AREA)
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- Hematology (AREA)
- Physics & Mathematics (AREA)
- Vascular Medicine (AREA)
- Neurosurgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention belongs to the technical field of medical instruments, and particularly relates to a blood taking needle suitable for an arm and convenient to collect blood and a using method thereof.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a blood taking needle suitable for an arm and convenient to collect blood and a use method thereof.
Background
The disposable blood taking needle is matched with a disposable human body venous blood sample vacuum collection container. The disposable blood taking needle mainly comprises a blood taking needle tube and a puncture needle, the blood taking needle tube is connected with the puncture needle through a connecting part, the puncture needle penetrates into a human venous blood sample vacuum collection container, the collection container is communicated with the blood taking needle, the current blood taking needle is divided into a soft connection type blood taking needle and a hard connection type blood taking needle, a needle seat of the blood taking needle tube is directly connected with a needle seat of the puncture needle to form the blood taking needle, when the disposable blood taking needle is used, the safety cap end extends into a holder, the thumb at the handle of the holder is clamped by an index finger and a middle finger to prop against the bottom of a container bottle, the puncture needle penetrates through the collection container rubber plug, blood is automatically sucked into the collection container, and the blood taking needle is taken down from a human body after the vacuum in the collection container completely disappears.
When a medical staff performs blood sampling and puncturing, the puncturing angle needs to be firstly large and then small, a needle tip inclined surface is adopted to face the left side of a vein, the angle between a needle body and skin is 30-45 degrees, after blood returns, a needle handle is immediately pressed down to slightly insert a needle head along the vein, compared with the traditional vein puncturing method, the method can improve the one-time puncturing success rate, simultaneously can reduce pain response of a patient to puncturing and damage to tissue and blood vessels, however, in actual operation, the medical staff with less puncturing experience cannot grasp the puncturing angle before and after control to cause excessive puncturing, in addition, the hand of the medical staff can inevitably generate fine tremble during puncturing, so that fine route deviation is generated when a needle tube with other supports is lack to move, and the puncturing position is offset to cause puncturing failure.
Disclosure of Invention
To solve the problems set forth in the background art. The invention provides a blood taking needle suitable for an arm and convenient to collect blood and a use method thereof, wherein a circular ring formed by clamping rings can provide support in the needle tube puncturing process, the moving stability of the needle tube is improved, the needle tube can puncture a blood vessel protruding under the pressing of a pressing plate, a needle handle can push the pressing rod to rotate so that the pressing plate can spring up to enable the blood vessel after blood return to be in a normal state, the puncturing angle of the needle tube does not need to be adjusted, and the puncturing efficiency and the success rate are improved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a blood taking needle convenient for gather blood and application method thereof suitable for arm, includes the U template, the inboard fixed mounting of U template has the buffering pad, the top threaded connection of U template has the roll adjustment screw rod, roll lever rotation of roll adjustment screw rod top fixed connection is installed on the curb plate, the first rotary tank and the second rotary tank of rotation installation clamp plate and connecting rod have been seted up around the inboard face of curb plate adjacently, the fixed cover in the outside of the pivot of clamp plate bottom side is equipped with the torsional spring, the one end slidable mounting of connecting rod has the slide bar, one end of slide bar is through U type link fixedly connected with joint ring, the one end of the medial surface fixed connection dead lever of curb plate below the connecting rod, the other end of dead lever rotates and installs the depression bar.
Preferably, the top end of the U-shaped plate is symmetrically provided with four internal threaded holes which are in threaded connection with the distance-adjusting screw rods, the side plate is provided with vertical through holes which penetrate through the upper end face and the lower end face of the side plate, the rotating rod is rotatably arranged in the through holes formed in the side plate and is of a slender cylindrical structure, the upper end and the lower end of the rotating rod are respectively provided with a rotating handle and a limiting bottom plate, and the diameter of the limiting bottom plate is not smaller than that of the through holes of the side plate; the user accessible swivel handle rotates the dwang and drives the roll adjustment screw rod rotation, and then adjusts the height of curb plate on the U template, makes this device can be applicable to the personnel of waiting to examine of different arm enclosures, improves this device's suitability.
Preferably, the second rotating groove is symmetrically arranged on the side plate in a left-right way and penetrates through the top surface and the inner wall of the side plate, one end of the connecting rod is rotationally connected with the inner wall of the second rotating groove, the clamping ring is of a semicircular structure with a distance of 1-1.5 mm from front to back, and the inner diameter of the clamping ring is 0.1-0.2 mm greater than the outer diameter of the needle tube of the blood taking needle; the clamping rings on the left sliding rod and the right sliding rod are sleeved on the circular ring outside the needle tube of the blood taking needle in a sliding manner through the rotation of the connecting rod, so that a supporting effect is provided in the process of needle tube puncture, the stability of needle tube movement in the puncture process is improved, and the success rate of puncture is improved.
Preferably, the bottom surfaces of the two sliding rods symmetrically arranged on the side plates, which are opposite to the clamping rings, are provided with mutually clamped convex blocks and grooves; the bump and the groove on the clamping ring can avoid front-back dislocation when the two clamping rings are mutually attached to form a complete annular structure.
Preferably, the connecting rod is of a circular tube structure with two closed ends, one end of the connecting rod and the first fixed plate are provided with through holes for sliding connection with the sliding rod, the other end of the sliding rod is fixedly connected with the second fixed plate, the outer side of the sliding rod is fixedly sleeved with a compression spring, and two ends of the compression spring are respectively clung to the third fixed plate fixedly arranged on the sliding rod and the first fixed plate fixedly connected with the inner wall of the connecting rod; when the operator rotates the connecting rod to enable the two clamping rings to be clamped mutually, the clamping rings can push the sliding rod to slide towards the inner side of the connecting rod, and after the clamping of the two clamping rings is completed, the compression springs enable the two clamping rings to be tightly attached.
Preferably, the first rotating groove is symmetrically arranged on the side plate in a left-right symmetry manner and penetrates through the top surface and the inner wall of the side plate, one end of the bottom surface of the pressing plate is fixedly connected with a connecting block, a rotating shaft fixedly arranged on two sides of the connecting block is rotationally connected with the inner wall of the first rotating groove, a torsion spring is fixedly sleeved on the outer side of the first rotating shaft, and two ends of the torsion spring are respectively clung to the bottom surface of the pressing plate and the side surface of the second rotating groove; the torsion spring can generate elastic energy storage, so that the pressing plate vertical to the inner side surface of the side plate rotates upwards to spring out after losing the constraint.
Preferably, the pressing plates are of a flat square plate structure with the width of 10-15 mm, and when the pressing plates rotatably arranged on the two first rotating grooves rotate to be vertical to the inner side surfaces of the side plates, the linear distance between the two pressing plates is 2-5 mm; when the pressing plate rotates to the inner side face perpendicular to the side plate, the arms of the blood taker can be pressed by the clamping and fixing of the pressing rod, so that blood vessels on the arms of the blood taker at the front side and the rear side of the pressing plate are raised, and the medical staff can conveniently perform puncture work.
Preferably, a second rotating shaft is fixedly arranged at one end of the fixed rod, a through hole for rotationally connecting the second rotating shaft is formed in the middle of the pressing rod, and when the pressing plate is perpendicular to the inner side surface of the side plate, the bottom surface of the pressing rod is the same as the top surface of the pressing plate in height; after blood return, the needle handle part of the blood taking needle which is pushed forward continuously can push one end of the pressure rod to enable the other end of the pressure rod to rotate to move away from the top surface of the pressure plate, so that the pressure plate is sprung, blood vessels on the arm are restored to a normal state after the pressure plate is sprung, excessive puncture is avoided while the movement angle of the needle tube is not regulated, and the puncture success rate of medical staff with less puncture experience is greatly improved.
Preferably, the method comprises the following steps:
One side of the device provided with the pressing plate faces to the front of a blood taking person to be taken, arms are placed into the inner side of the buffer support pad, then the four rotating handles are sequentially rotated, and the vertical distance between the side plate and the U-shaped plate is adjusted, so that the top end of the arms of the blood taking person to be taken is not higher than the bottom surface positions of the first rotating groove and the second rotating groove;
rotating the pressing plate to enable the pressing plate to be perpendicular to the inner side surface of the side plate, rotating the pressing rod by taking the second rotating shaft as the rotating shaft, enabling one end of the pressing rod to be pressed on the top surface of the pressing plate, and fixing the angle of the pressing plate;
Rotating the rotating handle to adjust the height of the side plate, so that the pressing plate generates proper pressing force on the vein on the arm, the vein on the arm of the blood taking person is protruded, and then rotating the connecting rod, so that the clamping rings on the sliding rod which are slidably arranged at the two ends of the connecting rod are clamped into a circular structure;
When medical staff starts to puncture according to operation standard, penetrate the needle tubing the ring center that the joint ring formed, then keep suitable angle to puncture in the bellied blood vessel in clamp plate rear, back, the puncture angle of blood taking needle remains unchanged, and the needle handle portion of the blood taking needle who continues to impel promotes the one end of depression bar makes the other end of depression bar rotate and removes the top of clamp plate to make the clamp plate spring up, the blood vessel on the arm resumes normal condition after the clamp plate spring up, and the syringe needle continues to push to the blood vessel in and accomplish the puncture.
Compared with the prior art, the invention has the beneficial effects that: the user can rotate the rotating rod through the rotating handle to drive the distance adjusting screw rod to rotate, so that the height of the side plate on the U-shaped plate is adjusted, the device can be suitable for people to be inspected with different arm circumferences, and the applicability of the device is improved; the clamping rings on the left and right adjacent sliding rods can form two circular rings which are sleeved on the outer side of the needle tube of the blood taking needle in a sliding manner through the rotation of the connecting rod, so that a supporting effect is provided in the process of puncturing the needle tube, the stability of the movement of the needle tube in the puncturing process is improved, and the success rate of puncturing is improved; the convex blocks and the grooves on the clamping rings can avoid front-back dislocation when the two clamping rings are jointed to form a complete annular structure; when an operator rotates the connecting rod to enable the two clamping rings to be clamped with each other, the clamping rings can push the sliding rod to slide towards the inner side of the connecting rod, and after the clamping of the two clamping rings is completed, the two clamping rings are tightly attached by the compression spring; the torsion spring can generate elastic energy storage, so that the pressing plate vertical to the inner side surface of the side plate rotates upwards to spring out after losing the constraint; when the pressing plate rotates to be vertical to the inner side surface of the side plate, the arms of the blood taker can be pressed by clamping and fixing the pressing rod, so that blood vessels on the arms of the blood taker at the front side and the rear side of the pressing plate are protruded, and the medical staff can conveniently perform puncture work; after blood return, the needle handle part of the blood taking needle which is pushed forward continuously can push one end of the pressure rod to enable the other end of the pressure rod to rotate to move away from the top surface of the pressure plate, so that the pressure plate is sprung, blood vessels on the arm are restored to a normal state after the pressure plate is sprung, excessive puncture is avoided while the movement angle of the needle tube is not regulated, and the puncture success rate of medical staff with less puncture experience is greatly improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a side cross-sectional view of the present invention;
FIG. 5 is a schematic view of a platen according to the present invention;
FIG. 6 is a schematic cross-sectional view of a connecting rod according to the present invention;
FIG. 7 is a schematic view of a U-shaped connecting frame and a clamping ring according to the present invention;
FIG. 8 is a schematic view of a structure of a compression bar and a fixing bar according to the present invention;
In the figure: 1. a U-shaped plate; 2. a buffer support pad; 3. a distance adjusting screw; 4. a rotating lever; 401. a limiting bottom plate; 402. a rotating handle; 5. a side plate; 6. a pressing plate; 601. a first rotating shaft; 602. a torsion spring; 603. a connecting block; 7. a connecting rod; 701. a first fixing plate; 8. a slide bar; 801. a second fixing plate; 802. a U-shaped connecting frame; 803. a clamping ring; 804. a fixing plate III; 805. a compression spring; 9. a compression bar; 10. a fixed rod; 101. a second rotating shaft; 11. a first rotating groove; 12. and a second rotating groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a blood taking needle convenient for gather blood and application method thereof suitable for arm, includes U template 1, the inboard fixed mounting of U template 1 has buffering pad 2, the top threaded connection of U template 1 has roll adjustment screw rod 3, roll adjustment screw rod 3 top fixed connection's dwang 4 rotates and installs on curb plate 5, the inboard front and back adjacent first rotary groove 11 and the second rotary groove 12 of seting up rotation installation clamp plate 6 and connecting rod 7 of curb plate 5, the fixed cover in the outside of pivot one 601 of clamp plate 6 bottom side is equipped with torsional spring 602, the one end slidable mounting of connecting rod 7 has slide bar 8, slide bar 8 one end is through U type link 802 fixedly connected with joint ring 803, the one end of the medial surface fixed connection dead lever 10 of curb plate 5 of connecting rod 7 below, the other end rotation of dead lever 10 installs depression bar 9.
Specifically, four internal thread holes which are in threaded connection with the distance-adjusting screw 3 are symmetrically formed in the top end of the U-shaped plate 1, vertical through holes which penetrate through the upper end face and the lower end face of the side plate 5 are formed in the side plate 5, the rotating rod 4 is rotatably installed in the through holes formed in the side plate 5, the rotating rod 4 is of a slender cylindrical structure, a rotating handle 402 and a limiting bottom plate 401 are respectively arranged at the upper end and the lower end of the rotating rod 4, and the diameter of the limiting bottom plate 401 is not smaller than that of the through holes of the side plate 5; the user accessible swivel handle 402 swivelling movement pole 4 drives the rotation of roll adjustment screw rod 3, and then adjusts the height of curb plate 5 on U template 1, makes this device can be applicable to the waiting of different arm and examines personnel, improves this device's suitability.
Specifically, the second rotating groove 12 is symmetrically opened on the side plate 5 and penetrates through the top surface and the inner wall of the side plate 5, one end of the connecting rod 7 is rotationally connected with the inner wall of the second rotating groove 12, the clamping ring 803 has two semicircular annular structures with a distance of 1-1.5 mm from front to back, and the inner diameter of the clamping ring 803 is 0.1-0.2 mm greater than the outer diameter of the needle tube of the blood taking needle; the clamping rings 803 on the left and right adjacent two sliding rods 8 can form two circular rings which are sleeved on the outer side of the needle tube of the blood taking needle in a sliding manner through the rotation of the connecting rod 7, so that a supporting effect is provided in the process of needle tube puncture, the stability of needle tube movement in the puncture process is improved, and the success rate of puncture is improved.
Specifically, the bottom surfaces of the two sliding rods 8 symmetrically installed on the side plate 5, which are opposite to the clamping rings 803, are provided with mutually clamped convex blocks and grooves; the bump and the groove on the clamping ring 803 can avoid front-back dislocation when the two clamping rings 803 are attached to form a complete annular structure.
Specifically, the connecting rod 7 is a circular tube structure with two closed ends, one end of the connecting rod 7 and the first fixing plate 701 are provided with through holes for sliding connection with the sliding rod 8, the other end of the sliding rod 8 is fixedly connected with the second fixing plate 801, the outer side of the sliding rod 8 is fixedly sleeved with a compression spring 805, and two ends of the compression spring 805 are respectively clung to the third fixing plate 804 fixedly arranged on the sliding rod 8 and the first fixing plate 701 fixedly connected with the inner wall of the connecting rod 7; when the operator rotates the connecting rod 7 to make the two clamping rings 803 clamped with each other, the clamping rings 803 can push the sliding rod 8 to slide towards the inner side of the connecting rod 7, and after the clamping of the two clamping rings 803 is completed, the compression springs 805 enable the two clamping rings 803 to be tightly attached.
Specifically, the first rotating groove 11 is symmetrically opened on the side plate 5 in a left-right manner and penetrates through the top surface and the inner wall of the side plate 5, one end of the bottom surface of the pressing plate 6 is fixedly connected with a connecting block 603, a first rotating shaft 601 fixedly installed on two sides of the connecting block 603 is rotationally connected with the inner wall of the first rotating groove 11, a torsion spring 602 is fixedly sleeved on the outer side of the first rotating shaft 601, and two ends of the torsion spring 602 are respectively clung to the bottom surface of the pressing plate 6 and the side surface of the second rotating groove 12; the torsion spring 602 can generate elastic energy storage, so that the pressing plate 6 vertical to the inner side surface of the side plate 5 rotates upwards to spring open after losing the constraint.
Specifically, the pressing plates 6 are in a flat square plate structure with the width of 10-15 mm, and when the pressing plates 6 rotatably installed on the two first rotating grooves 11 rotate to be vertical to the inner side surfaces of the side plates 5, the linear distance between the two pressing plates 6 is 2-5 mm; when the pressing plate 6 rotates to be perpendicular to the inner side surface of the side plate 5, the arms of the blood taker can be pressed by the clamping of the pressing rod 9, so that blood vessels on the arms of the blood taker at the front side and the rear side of the pressing plate 6 are protruded, and the medical staff can conveniently perform puncture work.
Specifically, a second rotating shaft 101 is fixedly mounted at one end of the fixing rod 10, a through hole for rotationally connecting the second rotating shaft 101 is formed in the middle of the pressing rod 9, and when the pressing plate 6 is perpendicular to the inner side surface of the side plate 5, the bottom surface of the pressing rod 9 is the same as the top surface of the pressing plate 6 in height; after blood return, the needle handle part of the blood taking needle which is continuously pushed forward can push one end of the pressure rod 9 to enable the other end of the pressure rod 9 to rotate to move away from the top surface of the pressure plate 6, so that the pressure plate 6 is sprung, blood vessels on the arm are restored to a normal state after the pressure plate 6 is sprung, excessive puncture is avoided while the movement angle of the needle tube is not regulated, and the puncture success rate of medical staff with less puncture experience is greatly improved.
Specifically, the method comprises the following steps:
the device is arranged and fixed on one side of the pressing plate 6 facing the front of a blood taking person, arms are placed into the inner side of the buffer support pad 2, then the four rotating handles 402 are sequentially rotated, and the vertical distance between the side plate 5 and the U-shaped plate 1 is adjusted, so that the top end of the arms of the blood taking person is not higher than the bottom surface positions of the first rotating groove 11 and the second rotating groove 12;
Rotating the pressing plate 6 to enable the pressing plate 6 to be perpendicular to the inner side surface of the side plate 5, rotating the pressing rod 9 by taking the second rotating shaft 101 as a rotating shaft, enabling one end of the pressing rod 9 to be pressed on the top surface of the pressing plate 6, and fixing the angle of the pressing plate 6;
Rotating the rotating handle 402 to adjust the height of the side plate 5, so that the pressing plate 6 generates proper pressing force on the vein on the arm, the vein on the arm of the blood taking person is protruded, and then rotating the connecting rod 7, so that the clamping rings 803 on the sliding rod 8 which is slidably arranged at two ends of the connecting rod 7 are clamped into a circular structure;
When the medical staff starts to puncture according to the operation standard, the needle tube penetrates into the center of the circular ring formed by the clamping ring 803, then a proper angle is kept to penetrate into the raised blood vessel at the rear of the pressing plate 6, after blood returns, the puncture angle of the blood taking needle is kept unchanged, the needle handle of the blood taking needle which is continuously pushed pushes one end of the pressing rod 9 to enable the other end of the pressing rod 9 to rotate and move away from the upper part of the pressing plate 6, so that the pressing plate 6 is sprung, the blood vessel on the arm is recovered to a normal state after the pressing plate 6 is sprung, and the needle head is continuously pushed into the blood vessel to complete puncture.
The working principle and the using flow of the invention are as follows: the medical staff places and fixes the side of the device provided with the pressing plate 6 towards the front of the blood taking staff, puts the arm into the inner side of the buffer support pad 2, then sequentially rotates the four rotating handles 402, so that the rotating handles 402 rotate the rotating rod 4 to drive the distance adjusting screw rod 3 to rotate, and further the height of the side plate 5 on the U-shaped plate 1 is adjusted, so that the top end of the arm of the blood taking staff is not higher than the bottom surface positions of the first rotating groove 11 and the second rotating groove 12, and the device is suitable for the blood taking staff with different arm circumferences;
The pressing plate 6 is rotated, so that the pressing plate 6 is perpendicular to the inner side surface of the side plate 5, at the moment, the torsion spring 602 generates elastic energy storage, and meanwhile, medical staff rotates the pressing rod 9 by taking the second rotating shaft 101 as a rotating shaft, so that one end of the pressing rod 9 is pressed on the top surface of the pressing plate 6, and the angle of the pressing plate 6 is fixed; then, the medical staff rotates the rotating handle 402 again to adjust the height of the side plate 5, so that the pressing plate 6 generates proper pressing force on the vein on the arm, the vein on the arm of the blood taking staff is protruded, then the connecting rod 7 is rotated, the clamping rings 803 on the sliding rod 8 which are slidably arranged at two ends of the connecting rod 7 are mutually clamped to form a circular structure, when the two clamping rings 803 are mutually clamped, the clamping rings 803 can push the sliding rod 8 to slide towards the inner side of the connecting rod 7, and after the clamping of the two clamping rings 803 is completed, the two clamping rings 803 are closely attached by the compression spring 805;
When a medical staff starts to puncture according to an operation standard, a needle tube penetrates into the center of a circular ring formed by the clamping ring 803, then a proper angle is kept to penetrate into a raised blood vessel at the rear of the pressing plate 6, after blood returns, the puncture angle of a blood taking needle is kept unchanged, the shank portion of the blood taking needle which is continuously pushed pushes one end of the pressing rod 9 to enable the other end of the pressing rod 9 to rotate and move away from the upper side of the pressing plate 6, so that the pressing plate 6 is sprung up from two sides of the needle tube under the action of the torsion spring 602, the arm vein of the blood taking staff is recovered to a normal state after the pressing plate 6 is sprung up, and the needle head is continuously pushed into the blood vessel, so that puncture can be completed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. Blood taking needle convenient for collecting blood suitable for arm, its characterized in that: the novel buffer support comprises a U-shaped plate (1), a buffer support pad (2) is fixedly arranged on the inner side of the U-shaped plate (1), a distance adjusting screw (3) is connected to the top of the U-shaped plate (1) in a threaded manner, a rotating rod (4) fixedly connected to the top of the distance adjusting screw (3) is rotatably arranged on a side plate (5), a first rotating groove (11) and a second rotating groove (12) for rotatably arranging a pressing plate (6) and a connecting rod (7) are formed in the front side and the back side of the inner side of the side plate (5) adjacently, a torsion spring (602) is fixedly sleeved on the outer side of a rotating shaft (601) on the bottom side of the pressing plate (6), a sliding rod (8) is slidably arranged at one end of the connecting rod (7), one end of the sliding rod (8) is fixedly connected with a clamping ring (803) through a U-shaped connecting frame (802), one end of the inner side surface of the side plate (5) below the connecting rod (7) is fixedly connected with one end of a fixing rod (10), and the other end of the fixing rod (10) is rotatably provided with a pressing rod (9).
The second rotating groove (12) is symmetrically formed on the side plate (5) in a left-right symmetry manner and penetrates through the top surface and the inner wall of the side plate (5), one end of the connecting rod (7) is rotationally connected with the inner wall of the second rotating groove (12), the clamping ring (803) is of two semicircular annular structures with a distance of 1-1.5 mm from front to back, and the inner diameter of the clamping ring (803) is 0.1-0.2 mm greater than the outer diameter of the blood taking needle tube;
the bottom surfaces of the two sliding rods (8) symmetrically arranged on the side plates (5) opposite to the clamping rings (803) are provided with mutually clamped convex blocks and grooves;
the connecting rod (7) is of a circular tube type structure with two closed ends, one end of the connecting rod (7) and the first fixed plate (701) are provided with through holes for sliding connection with the sliding rod (8), the other end of the sliding rod (8) is fixedly connected with the second fixed plate (801), the outer side of the sliding rod (8) is fixedly sleeved with a compression spring (805), and two ends of the compression spring (805) are respectively clung to the third fixed plate (804) fixedly arranged on the sliding rod (8) and the first fixed plate (701) fixedly connected with the inner wall of the connecting rod (7);
The first rotating groove (11) is symmetrically formed in the side plate (5) in a left-right mode and penetrates through the top surface and the inner wall of the side plate (5), one end of the bottom surface of the pressing plate (6) is fixedly connected with a connecting block (603), a first rotating shaft (601) fixedly arranged on two sides of the connecting block (603) is rotationally connected with the inner wall of the first rotating groove (11), a torsion spring (602) is fixedly sleeved on the outer side of the first rotating shaft (601), and two ends of the torsion spring (602) are respectively clung to the bottom surface of the pressing plate (6) and the side surface of the second rotating groove (12);
the pressing plates (6) are of flat square plate structures with the width of 10-15 mm, and when the pressing plates (6) rotatably installed on the two first rotating grooves (11) rotate to be perpendicular to the inner side surfaces of the side plates (5), the linear distance between the two pressing plates (6) is 2-5 mm;
one end of the fixed rod (10) is fixedly provided with a second rotating shaft (101), the middle part of the pressure rod (9) is provided with a through hole which is rotationally connected with the second rotating shaft (101), and when the pressure plate (6) is perpendicular to the inner side surface of the side plate (5), the bottom surface of the pressure rod (9) is the same as the top surface of the pressure plate (6).
2. A blood lancet for an arm adapted for facilitating blood collection according to claim 1, wherein: four internal thread holes of threaded connection roll adjustment screw rod (3) have been seted up to U template (1) top symmetry, set up the perpendicular through-hole that link up the up-down end of curb plate (5) on curb plate (5), dwang (4) rotate and install in the through-hole of seting up on curb plate (5), dwang (4) are long and thin cylindrical structure, the upper and lower both ends of dwang (4) are equipped with swivel handle (402) and spacing bottom plate (401) respectively, the diameter of spacing bottom plate (401) is not less than the diameter of the through-hole of curb plate (5).
3. A blood lancet for an arm adapted for facilitating blood collection according to claim 2, wherein: the using method of the blood taking needle comprises the following steps:
The device is characterized in that one side of the device, provided with the pressing plate (6), faces to the front of a blood taking person to be taken, is fixedly placed, arms are placed into the inner side of the buffer support pad (2), then the four rotating handles (402) are sequentially rotated, and the vertical distance between the side plate (5) and the U-shaped plate (1) is adjusted, so that the top end of the arms of the blood taking person to be taken is not higher than the bottom surface positions of the first rotating groove (11) and the second rotating groove (12);
The pressing plate (6) is rotated, the pressing plate (6) is perpendicular to the inner side surface of the side plate (5), the pressing rod (9) rotates by taking the rotating shaft II (101) as a rotating shaft, one end of the pressing rod (9) is pressed on the top surface of the pressing plate (6), and the angle of the pressing plate (6) is fixed;
Rotating the rotating handle (402) to adjust the height of the side plate (5) so as to enable vein vessels on the arm of the pressing plate (6) to generate proper pressing force, enable the vein vessels on the arm of a blood taking person to bulge, and then rotating the connecting rod (7) so as to enable clamping rings (803) on sliding rods (8) which are slidably arranged at two ends of the connecting rod (7) to be clamped into a circular structure;
when medical staff starts to puncture according to operation standard, penetrate needle tubing into the ring center that joint ring (803) formed, then keep suitable angle to puncture in the bellied blood vessel in clamp plate (6) rear, when syringe needle continues forward propelling movement, the needle handle position promotes the one end of depression bar (9) and makes the other end of depression bar (9) rotate and move away the top of clamp plate (6) to make clamp plate (6) spring up, the blood vessel on clamp plate (6) spring up back arm resumes normal condition, and the syringe needle continues to push to the blood vessel and accomplish the puncture.
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| CN202011384268.1A CN112401884B (en) | 2020-12-02 | 2020-12-02 | Blood taking needle suitable for arms and convenient for blood collection and use method thereof |
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| CN202011384268.1A CN112401884B (en) | 2020-12-02 | 2020-12-02 | Blood taking needle suitable for arms and convenient for blood collection and use method thereof |
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| CN112401884A CN112401884A (en) | 2021-02-26 |
| CN112401884B true CN112401884B (en) | 2024-05-24 |
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