CN108523904B - Disposable arteriovenous puncture blood taking needle and protection device thereof - Google Patents
Disposable arteriovenous puncture blood taking needle and protection device thereof Download PDFInfo
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- CN108523904B CN108523904B CN201810725900.0A CN201810725900A CN108523904B CN 108523904 B CN108523904 B CN 108523904B CN 201810725900 A CN201810725900 A CN 201810725900A CN 108523904 B CN108523904 B CN 108523904B
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- 239000008280 blood Substances 0.000 title claims abstract description 91
- 210000004369 blood Anatomy 0.000 title claims abstract description 91
- 238000010241 blood sampling Methods 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims description 81
- 229920003023 plastic Polymers 0.000 claims description 81
- -1 polytetrafluoroethylene Polymers 0.000 claims description 21
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims 1
- 208000015181 infectious disease Diseases 0.000 abstract description 7
- 238000006748 scratching Methods 0.000 description 5
- 230000002393 scratching effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000001631 haemodialysis Methods 0.000 description 4
- 230000000322 hemodialysis Effects 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
-
- 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
-
- 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
- A61B5/150343—Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes
-
- 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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
-
- 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
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150572—Pierceable protectors, e.g. shields, caps, sleeves or films, e.g. for hygienic purposes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a disposable arteriovenous puncture blood taking needle and a protecting device thereof. According to the invention, the blood sampling speed can be improved, the working efficiency of medical staff is effectively improved, when a test tube for storing a blood sample to be inspected needs to be replaced, the bending pressing plate and the supporting plate can be pinched by fingers, so that the pressing plate is inserted into the cylindrical groove to flatten the hose, the hose is blocked, the blood loss of a patient can be prevented, the using amount of the blood of the patient is reduced, the hollow contact pin after the use can be inserted into the slot, the two sheet-shaped handles are inserted into the clamping groove, the puncture part is blocked in the cylinder by utilizing the clamping block to match with the clamping hole, the hollow contact pin can be prevented from being pulled out, the hollow contact pin can be effectively prevented from stabbing the medical staff, and the infection phenomenon of the medical staff caused by the puncture of the hollow contact pin is avoided.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a disposable arteriovenous puncture blood taking needle and a protecting device thereof.
Background
At present, a disposable 5ML injector is connected with an arteriovenous puncture needle for blood collection in a hemodialysis department, and the blood collection speed is low, so that the working efficiency of medical staff is seriously affected, when the blood of a patient is collected, the needle point is required to be returned again to inject the blood into a test tube for sending and detecting the blood sample, and the medical staff is often carelessly punctured by the needle. The number of the hemodialysis patient examination items is large, a plurality of test tubes are needed, the blood collection is large, the 5ML syringe is insufficient in collection (the needle point of the 20ML syringe is too thick, the damage to the test tube apron is large, the blood leakage is easy to cause), the blood loss of the patient is easy to cause, and the blood consumption of the patient is increased. The existing clinical disposable blood taking needle is not provided with a protecting device, so that part of medical staff is in stabbing infection in the use process of a hemodialysis department, and therefore, the disposable arteriovenous puncture blood taking needle and the protecting device thereof are provided.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a disposable arteriovenous puncture blood taking needle and a protection device thereof, which can conveniently complete blood taking work through matching of a puncture part and a blood taking part, thereby improving blood taking speed, effectively improving working efficiency of medical staff, inserting a hose into the inside of a cylindrical through groove, pinching a bending pressing plate and a supporting plate by fingers when a test tube for storing a blood sample to be checked needs to be replaced when blood of a patient is collected, enabling the pressing plate to be inserted into a cylindrical groove to flatten the hose, further enabling the hose to be blocked, preventing the blood of the patient from losing, reducing the blood consumption of the patient, inserting the hollow needle after use into the inside of a slot, inserting two sheet-shaped handles into the inside of a clamping groove, clamping the puncture part into the inside of a cylinder by utilizing a clamping block matching clamping hole, preventing the hollow needle from being pulled out, effectively preventing the hollow needle from stabbing the medical staff, and avoiding infection of the medical staff due to the stabbing of the hollow needle.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The disposable arteriovenous puncture blood taking needle comprises a puncture part, a blood taking part and a hose, wherein the puncture part is connected with one end of the hose, the other end of the hose is detachably connected with a connector, and the connector is connected with the blood taking part;
the puncture part comprises a first plastic fixed pipe, one end of the first plastic fixed pipe is inserted into one end of the hose, a hollow contact pin is encapsulated in one end of the first plastic fixed pipe, which is far away from the hose, through a polytetrafluoroethylene block, two sheet-shaped handles are symmetrically arranged outside the first plastic fixed pipe, and clamping holes are formed in the two sheet-shaped handles;
The blood sampling portion comprises a second plastic fixing tube with one end inserted into the connector, a connecting tube is fixedly arranged at the other end of the second plastic fixing tube, and a plastic needle is connected to one end, away from the second plastic fixing tube, of the connecting tube.
Through adopting above-mentioned technical scheme, cavity contact pin is used for puncturing patient's arteriovenous blood vessel and draws blood, and the draw-in hole on two slice handles is used for with the mutual block of fixture block, and then dies the inside at the protection part with the puncture portion card, can prevent effectively that cavity contact pin from stabbing medical personnel, avoids causing medical personnel to take place the infection because of being stabbed by cavity contact pin, and blood sampling portion is used for introducing the inside test tube that is used for the censoring with patient's blood, through puncture portion and blood sampling portion cooperation can be convenient completion blood sampling work.
Further, the end part of the first plastic fixing pipe inserted into one end of the hose is a necking part, a plurality of convex rings are equidistantly arranged outside the necking part, and a check ring is integrally arranged on the necking part and positioned between the convex rings and the sheet-shaped handle.
Through adopting above-mentioned technical scheme, protruding circle has better anti-skidding effect, can prevent that first plastics fixed pipe from coming off from the tip of hose, and protruding circle multiplicable shrinkage part and hose inner wall between sealing performance simultaneously can prevent that first plastics fixed pipe and hose junction from leaking liquid, and the retaining ring is used for restricting the inside length of first plastics fixed pipe insertion hose tip.
Further, the diameter of the convex ring is smaller than that of the check ring.
Through adopting above-mentioned technical scheme, can guarantee that hose end is inconsistent with the side of retaining ring to guarantee the retaining ring to the restriction effect of the inside length of first plastics fixed pipe insertion hose end.
Further, the end edge of the connecting pipe far away from the second plastic fixing pipe is of a rounding structure, and the end edge of the plastic needle far away from the connecting pipe is of a rounding structure.
Through adopting above-mentioned technical scheme, can reduce the connecting pipe and keep away from the impact force when the one end edge of second plastics fixed pipe and the one end edge that the connecting pipe was kept away from to plastics syringe needle collide with the test tube mouth that is used for storing the censored blood sample to avoid the test tube broken.
Further, two stop blocks are symmetrically arranged outside the second plastic fixing pipe.
By adopting the technical scheme, the two stop blocks are used for limiting the length of the second plastic fixing pipe inserted into the connector.
Further, the outside of hose still overlaps and is equipped with clamping part, the clamping part includes the arc splint, the one end of arc splint is connected with the clamp plate, and the other end of arc splint is connected with the backup pad, install the lug between two parties on the backup pad side that is close to the clamp plate, the cylinder type logical groove that parallels with the backup pad has been seted up to the inside of lug, and the lug is close to the cylinder type groove that is linked together with the cylinder type logical groove of having offered between two parties on the side that the lug is close to the clamp plate, the clamp plate is close to the fixed briquetting that is equipped with the cylinder type groove that can stretch into on the side of lug, and the clamp plate is kept away from the one end of arc splint and is connected with the clamp plate of bending.
Through adopting above-mentioned technical scheme, insert the inside in cylinder logical groove with the hose, when gathering patient's blood, when needs change the test tube that is used for storing the censored blood sample, can pinch clamp plate and backup pad of bending with the finger for the briquetting inserts cylinder recess and flattens the hose, and then makes the hose blocked up, can prevent patient's blood loss, in order to reduce patient's blood's quantity.
Further, the outer side face of the polytetrafluoroethylene block extends to the outer portion of the first plastic fixing tube, and the outer side face of the polytetrafluoroethylene block is of an arc face structure.
By adopting the technical scheme, the outer side surface of the polytetrafluoroethylene block can be prevented from scratching the skin of a patient when the hollow contact pin punctures the artery and vein of the patient.
The invention also provides a protection device of the disposable arteriovenous puncture blood taking needle, which comprises a sleeve sleeved outside the hose, wherein the outer side surface of the sleeve is integrally provided with a hinge lug, the inside of the hinge lug is hinged with a connecting belt through a pin shaft, and one end of the connecting belt, which is far away from the hinge lug, is fixedly connected with a protection part;
The protection part comprises a cylinder fixedly connected to one end of the connecting belt far away from the hinge lug, a clamping groove is formed in one end face of the cylinder, a slot is formed in the cylinder through the center of the clamping groove, and two elastic clamping parts are symmetrically embedded in the junction between the inside of the cylinder and the top wall of the clamping groove;
The elastic clamping part comprises a cylinder body fixedly inlaid in the cylinder body, the two ends of the cylinder body are of a closed structure, a spring, a square sliding block and a clamping block are arranged in the cylinder body, the upper end of the spring is abutted against the inner top wall of the cylinder body, the bottom end of the spring is abutted against the upper portion of the square sliding block, the bottom of the square sliding block is fixedly connected with the upper portion of the clamping block, the bottom of the clamping block penetrates through the bottom wall of the cylinder body and extends to the inside of the clamping groove, the bottom of the clamping block is abutted against the bottom wall of the clamping groove, and an inclined surface right opposite to the outer side of the clamping groove is arranged at the bottom of the clamping block.
Through adopting above-mentioned technical scheme, can install the inside at the slot with the cavity contact pin after the use, install two slice handles in the inside of draw-in groove, utilize fixture block cooperation draw-in hole to block the inside at the cylinder with the puncture portion card, can prevent that cavity contact pin from being pulled out, can prevent effectively that cavity contact pin from stabbing medical personnel, avoid causing medical personnel to take place the infection phenomenon because of being stabbed by cavity contact pin.
Further, the other end face of the cylinder is of an arc-shaped structure.
By adopting the technical scheme, the cylinder can be prevented from scratching medical staff and patients.
Further, the cylinder is made of polyethylene plastic.
Through adopting above-mentioned technical scheme, be convenient for produce the cylinder through injection moulding's mode, polyethylene plastic possesses better corrosion resistance simultaneously, can increase the life of cylinder.
In summary, the invention has the following advantages:
1. According to the invention, the blood collection work can be conveniently completed through the matching of the puncture part and the blood collection part, so that the blood collection speed is improved, and the working efficiency of medical staff is effectively improved;
2. According to the invention, the hose is inserted into the cylindrical through groove, when a test tube for storing a blood sample to be tested is required to be replaced during blood collection, the bending pressing plate and the supporting plate can be pinched by fingers, so that the pressing block is inserted into the cylindrical groove to flatten the hose, the hose is blocked, the blood loss of a patient can be prevented, and the blood consumption of the patient is reduced;
3. According to the invention, the hollow contact pin after use can be inserted into the slot, the two sheet-shaped handles are inserted into the clamping groove, the puncture part is clamped in the cylinder by utilizing the clamping block to be matched with the clamping hole, the hollow contact pin can be prevented from being pulled out, the hollow contact pin can be effectively prevented from being punctured by medical staff, the infection phenomenon of the medical staff caused by the puncture of the hollow contact pin is avoided, and the hollow contact pin is worthy of popularization and popularization.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
Fig. 3 is a schematic structural view of a protecting part according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of a protecting portion according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an elastic clamping portion according to an embodiment of the present invention;
FIG. 6 is a schematic view of a clamping portion according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a bump according to an embodiment of the present invention.
In the figure: 1. a puncture part; 2. a clamping part; 3. a protection part; 4. a blood sampling part; 5. a first plastic fixing tube; 6. a polytetrafluoroethylene block; 7. a hollow pin; 8. a sheet-like handle; 9. a clamping hole; 10. a hose; 11. a sleeve; 12. a hinge ear; 13. a connecting belt; 14. a connector; 15. a second plastic fixing tube; 16. a connecting pipe; 17. a plastic needle; 18. a stop block; 19. a cylinder; 20. a slot; 21. a clamping groove; 22. a clamping block; 23. a cylinder; 24. an elastic clamping part; 25. a spring; 26. square slide block; 27. a pinch portion; 28. a convex ring; 29. a retainer ring; 30. an arc clamping plate; 31. briquetting; 32. a pressing plate; 33. bending the pressing plate; 34. a support plate; 35. a cylindrical through groove; 36. a bump; 37. cylindrical grooves.
Detailed Description
Example 1:
the invention is described in further detail below with reference to figures 1, 2,6 and 7.
1,2, 6 And 7, the disposable arteriovenous puncture blood taking needle comprises a puncture part 1, a blood taking part 4 and a hose 10, wherein the puncture part 1 is connected with one end of the hose 10, the other end of the hose 10 is detachably connected with a connector 14, and the connector 14 is connected with the blood taking part 4;
the puncture part 1 comprises a first plastic fixed pipe 5 with one end inserted into one end of a hose 10, a hollow contact pin 7 is encapsulated in one end of the first plastic fixed pipe 5 far away from the hose 10 through a polytetrafluoroethylene block 6, two sheet-shaped handles 8 are symmetrically arranged outside the first plastic fixed pipe 5, and clamping holes 9 are formed in the two sheet-shaped handles 8;
The blood sampling part 4 comprises a second plastic fixing tube 15 with one end inserted into the connector 14, a connecting tube 16 is fixedly arranged at the other end of the second plastic fixing tube 15, and a plastic needle 17 is connected to one end, far away from the second plastic fixing tube 15, of the connecting tube 16. The hollow contact pin 7 is used for puncturing an arteriovenous blood vessel of a patient to draw blood, the clamping holes 9 on the two sheet-shaped handles 8 are used for being mutually clamped with the clamping blocks 22, and then the puncture part 1 is clamped in the protection part 3, so that the hollow contact pin 7 can be effectively prevented from stabbing medical care personnel, the medical care personnel are prevented from being infected by the hollow contact pin 7, the blood sampling part 4 is used for introducing the blood of the patient into a test tube for censoring, and the blood sampling work can be conveniently completed through the cooperation of the puncture part 1 and the blood sampling part 4.
Preferably, the end of the first plastic fixing tube 5 inserted into one end of the hose 10 is a necking part 27, a plurality of convex rings 28 are equidistantly arranged outside the necking part 27, and a retainer ring 29 is integrally arranged on the necking part 27 between the convex rings 28 and the sheet-shaped handle 8. The convex ring 28 has better anti-slip effect, can prevent that the first plastic fixed pipe 5 from falling off from the end of the hose 10, and the convex ring 28 can increase the sealing performance between the shrinkage part 27 and the inner wall of the hose 10, can prevent that the junction of the first plastic fixed pipe 5 and the hose 10 from leaking, and the retainer ring 29 is used for limiting the length of the first plastic fixed pipe 5 inserted into the end of the hose 10.
Preferably, the diameter of the collar 28 is smaller than the diameter of the collar 29. It is ensured that the end of the hose 10 abuts against the side of the collar 29, thereby ensuring that the collar 29 limits the length of the first plastic fixing tube 5 inserted into the end of the hose 10.
Preferably, an end edge of the connecting tube 16 far from the second plastic fixing tube 15 is in a rounded structure, and an end edge of the plastic needle 17 far from the connecting tube 16 is in a rounded structure. The impact force when the end edge of the connecting tube 16 away from the second plastic fixing tube 15 and the end edge of the plastic needle 17 away from the connecting tube 16 collide with the test tube port for storing the blood sample to be tested can be reduced, thereby avoiding breakage of the test tube.
Preferably, two stoppers 18 are symmetrically arranged on the outer side of the second plastic fixing tube 15. Two stops 18 are provided to limit the length of the second plastic fixing tube 15 inserted inside the coupling head 14.
Preferably, the outside of hose 10 still overlaps and is equipped with clamping part 2, clamping part 2 includes arc splint 30, the one end of arc splint 30 is connected with clamp plate 32, and the other end of arc splint 30 is connected with backup pad 34, install lug 36 on the backup pad 34 is close to the side of clamp plate 32 between two parties, the cylindrical logical groove 35 that parallels with backup pad 34 has been seted up to the inside of lug 36, and the lug 36 is close to the side of clamp plate 32 between two parties and has seted up the cylindrical recess 37 that is linked together with cylindrical logical groove 35, the clamp plate 32 is close to the fixed briquetting 31 that is equipped with can stretch into cylindrical recess 37 on the side of lug 36, and the clamp plate 32 is kept away from the one end of arc splint 30 and is connected with the clamp plate 33 of bending. The hose 10 is inserted into the cylindrical through groove 35, when the test tube for storing a blood sample for examination needs to be replaced during collection of blood of a patient, the bending press plate 33 and the support plate 34 can be pinched by fingers, so that the pressing block 31 is inserted into the cylindrical groove 37 to flatten the hose 10, and then the hose 10 is blocked, the blood loss of the patient can be prevented, and the blood consumption of the patient can be reduced.
Preferably, the outer side surface of the polytetrafluoroethylene block 6 extends to the outside of the first plastic fixing pipe 5, and the outer side surface of the polytetrafluoroethylene block 6 is in a cambered surface structure. Can prevent the outer side surface of the polytetrafluoroethylene block 6 from scratching the skin of a patient when the hollow contact pin 7 punctures the artery and vein of the patient.
Example 2
The invention is described in further detail below with reference to fig. 1-7.
1-7, The disposable arteriovenous puncture blood taking needle comprises a puncture part 1, a blood taking part 4 and a hose 10, wherein the puncture part 1 is connected with one end of the hose 10, the other end of the hose 10 is detachably connected with a connector 14, and the connector 14 is connected with the blood taking part 4;
the puncture part 1 comprises a first plastic fixed pipe 5 with one end inserted into one end of a hose 10, a hollow contact pin 7 is encapsulated in one end of the first plastic fixed pipe 5 far away from the hose 10 through a polytetrafluoroethylene block 6, two sheet-shaped handles 8 are symmetrically arranged outside the first plastic fixed pipe 5, and clamping holes 9 are formed in the two sheet-shaped handles 8;
The blood sampling part 4 comprises a second plastic fixing tube 15 with one end inserted into the connector 14, a connecting tube 16 is fixedly arranged at the other end of the second plastic fixing tube 15, and a plastic needle 17 is connected to one end, far away from the second plastic fixing tube 15, of the connecting tube 16.
Through adopting above-mentioned technical scheme, cavity contact pin 7 is used for puncturing patient's arteriovenous blood vessel and draws blood, and the draw-in hole 9 on two slice handles 8 is used for with the mutual block of fixture block 22, and then with the inside of puncture portion 1 card dead at protection portion 3, can prevent effectively that cavity contact pin 7 from stabbing medical personnel, avoid causing medical personnel to take place the infection because of stabbing by cavity contact pin 7, blood sampling portion 4 is used for introducing the inside test tube that is used for the censoring with patient's blood, through puncture portion 1 and blood sampling portion 4 cooperation can be convenient accomplish blood sampling work.
Preferably, the end of the first plastic fixing tube 5 inserted into one end of the hose 10 is a necking part 27, a plurality of convex rings 28 are equidistantly arranged outside the necking part 27, and a retainer ring 29 is integrally arranged on the necking part 27 between the convex rings 28 and the sheet-shaped handle 8. The convex ring 28 has better anti-slip effect, can prevent that the first plastic fixed pipe 5 from falling off from the end of the hose 10, and the convex ring 28 can increase the sealing performance between the shrinkage part 27 and the inner wall of the hose 10, can prevent that the junction of the first plastic fixed pipe 5 and the hose 10 from leaking, and the retainer ring 29 is used for limiting the length of the first plastic fixed pipe 5 inserted into the end of the hose 10.
Preferably, the diameter of the collar 28 is smaller than the diameter of the collar 29. It is ensured that the end of the hose 10 abuts against the side of the collar 29, thereby ensuring that the collar 29 limits the length of the first plastic fixing tube 5 inserted into the end of the hose 10.
Preferably, an end edge of the connecting tube 16 far from the second plastic fixing tube 15 is in a rounded structure, and an end edge of the plastic needle 17 far from the connecting tube 16 is in a rounded structure. The impact force when the end edge of the connecting tube 16 away from the second plastic fixing tube 15 and the end edge of the plastic needle 17 away from the connecting tube 16 collide with the test tube port for storing the blood sample to be tested can be reduced, thereby avoiding breakage of the test tube.
Preferably, two stoppers 18 are symmetrically arranged on the outer side of the second plastic fixing tube 15. Two stops 18 are provided to limit the length of the second plastic fixing tube 15 inserted inside the coupling head 14.
Preferably, the outside of hose 10 still overlaps and is equipped with clamping part 2, clamping part 2 includes arc splint 30, the one end of arc splint 30 is connected with clamp plate 32, and the other end of arc splint 30 is connected with backup pad 34, install lug 36 on the backup pad 34 is close to the side of clamp plate 32 between two parties, the cylindrical logical groove 35 that parallels with backup pad 34 has been seted up to the inside of lug 36, and the lug 36 is close to the side of clamp plate 32 between two parties and has seted up the cylindrical recess 37 that is linked together with cylindrical logical groove 35, the clamp plate 32 is close to the fixed briquetting 31 that is equipped with can stretch into cylindrical recess 37 on the side of lug 36, and the clamp plate 32 is kept away from the one end of arc splint 30 and is connected with the clamp plate 33 of bending. The hose 10 is inserted into the cylindrical through groove 35, when the test tube for storing a blood sample for examination needs to be replaced during collection of blood of a patient, the bending press plate 33 and the support plate 34 can be pinched by fingers, so that the pressing block 31 is inserted into the cylindrical groove 37 to flatten the hose 10, and then the hose 10 is blocked, the blood loss of the patient can be prevented, and the blood consumption of the patient can be reduced.
Preferably, the outer side surface of the polytetrafluoroethylene block 6 extends to the outside of the first plastic fixing pipe 5, and the outer side surface of the polytetrafluoroethylene block 6 is in a cambered surface structure. Can prevent the outer side surface of the polytetrafluoroethylene block 6 from scratching the skin of a patient when the hollow contact pin 7 punctures the artery and vein of the patient.
The invention also provides a protection device of the disposable arteriovenous puncture blood taking needle, which comprises a sleeve 11 sleeved outside the hose 10, wherein the outer side surface of the sleeve 11 is integrally provided with a hinge lug 12, the inside of the hinge lug 12 is hinged with a connecting belt 13 through a pin shaft, and one end of the connecting belt 13 far away from the hinge lug 12 is fixedly connected with a protection part 3;
The protection part 3 comprises a cylinder 19 fixedly connected to one end, far away from the hinge lug 12, of the connecting belt 13, a clamping groove 21 is formed in one end face of the cylinder 19, a slot 20 is formed in the cylinder 19 at the center position of the clamping groove 21, and two elastic clamping parts 24 are symmetrically inlaid at the junction between the inner part of the cylinder 19 and the top wall of the clamping groove 21;
The elastic clamping part 24 comprises a cylinder body 23 fixedly embedded in the cylinder 19, two ends of the cylinder body 23 are of a closed structure, a spring 25, a square sliding block 26 and a clamping block 22 are arranged in the cylinder body 23, the upper end of the spring 25 is abutted against the inner top wall of the cylinder body 23, the bottom end of the spring 25 is abutted against the upper part of the square sliding block 26, the bottom of the square sliding block 26 is fixedly connected with the upper part of the clamping block 22, the bottom of the clamping block 22 penetrates through the bottom wall of the cylinder body 23 and extends to the inside of the clamping groove 21, the bottom of the clamping block 22 is abutted against the bottom wall of the clamping groove 21, an inclined surface opposite to the outer side of the clamping groove 21 is arranged at the bottom of the clamping block 22, the inclined surface plays a guiding role, the clamping block 22 is tightly clamped in the inside of the clamping hole 9 under the action of the spring 25 after the two sheet handles 8 are inserted into the clamping groove 21, and the other side of the clamping block 22 is a vertical plane, so that the two sheet handles 8 cannot be pulled out from the inside the clamping groove 21, and the puncture part 1 can be inserted into the cylinder 19. The hollow contact pin 7 after use can be inserted into the slot 20, the two sheet handles 8 are inserted into the clamping groove 21, the puncture part 1 is clamped in the cylinder 19 by the clamping block 22 matched with the clamping hole 9, the hollow contact pin 7 can be prevented from being pulled out, the hollow contact pin 7 can be effectively prevented from stabbing medical staff, and the medical staff is prevented from being infected due to stabbing by the hollow contact pin 7.
Preferably, the other end face of the cylinder 19 has an arc-shaped structure. The cylinder 19 is prevented from scratching the healthcare worker and the patient.
Preferably, the cylinder 19 is made of polyethylene plastic. The cylinder 19 is produced in an injection molding mode, and meanwhile, the polyethylene plastic has good corrosion resistance, so that the service life of the cylinder 19 can be prolonged.
The disposable arteriovenous puncture blood collection needles of example 1 and example 2 were used simultaneously in two hemodialysis rooms and the results are shown in the following table:
from the data analysis of the table, the disposable arteriovenous puncture blood taking needle is matched with the protection device, so that the phenomenon that medical staff are punctured and infected by the hollow contact pin 7 can be effectively avoided.
Working principle: the disposable arteriovenous puncture blood taking needle can conveniently complete blood taking work through the matching of the puncture part 1 and the blood taking part 4, so that the blood taking speed is improved, and the working efficiency of medical staff is effectively improved; when the hose 10 is inserted into the cylindrical through groove 35, and when a test tube for storing a blood sample for examination needs to be replaced during blood collection, the bending pressing plate 33 and the supporting plate 34 can be pinched by fingers, so that the pressing block 31 is inserted into the cylindrical groove 37 to flatten the hose 10, and the hose 10 is blocked, thereby preventing the blood loss of the patient and reducing the blood consumption of the patient; the hollow contact pin 7 after use can be inserted into the slot 20, two sheet-shaped handles 8 are inserted into the slot 21, the clamping block 22 is matched with the clamping hole 9 to clamp the puncture part 1 in the cylinder 19, the hollow contact pin 7 can be prevented from being pulled out, the hollow contact pin 7 can be effectively prevented from stabbing medical staff, the hollow contact pin 7 is prevented from being stabbed by the medical staff, the hollow contact pin 7 is prevented from being infected by the hollow contact pin 7, the plastic needle 17 is inserted into a test tube for blood sample delivery, then the hollow contact pin 7 is inserted into the arteriovenous vessel of a patient, blood of the patient flows through the plastic needle 17 into the test tube for blood sample delivery through the hose 10, when the test tube for blood sample delivery is replaced, the bending pressing plate 33 and the supporting plate 34 can be clamped by fingers, the pressing block 31 is inserted into the cylinder 37 to be flattened, the hose 10 is further prevented from being blocked, the blood loss of the patient can be prevented, the hollow contact pin 7 is prevented from being inserted into the slot 20 when the blood sample is taken out, the hollow contact pin 8 is inserted into the slot 7, the hollow contact pin 8 is inserted into the card slot 21 through the plastic needle 17, the hollow contact pin 7 is prevented from being stabbed by the hollow contact pin 7, and the hollow contact pin 7 can be prevented from being polluted by the medical staff when the blood sample is finished.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (8)
1. The utility model provides a disposable arteriovenous puncture blood taking needle, includes puncture portion (1), blood sampling portion (4) and hose (10), its characterized in that: the puncture part (1) is connected with one end of the hose (10), the other end of the hose (10) is detachably connected with the connector (14), and the connector (14) is connected with the blood sampling part (4);
The puncture part (1) comprises a first plastic fixed pipe (5) with one end inserted into one end of the hose (10), a hollow contact pin (7) is encapsulated in one end of the first plastic fixed pipe (5) far away from the hose (10) through a polytetrafluoroethylene block (6), two sheet-shaped handles (8) are symmetrically arranged outside the first plastic fixed pipe (5), and clamping holes (9) are formed in the two sheet-shaped handles (8);
The blood sampling part (4) comprises a second plastic fixing tube (15) with one end inserted into the connector (14), a connecting tube (16) is fixedly arranged at the other end of the second plastic fixing tube (15), and a plastic needle head (17) is connected to one end, far away from the second plastic fixing tube (15), of the connecting tube (16);
The hose is characterized in that the outside of the hose (10) is further sleeved with a clamping part (2), the clamping part (2) comprises an arc clamping plate (30), one end of the arc clamping plate (30) is connected with a pressing plate (32), the other end of the arc clamping plate (30) is connected with a supporting plate (34), a lug (36) is centrally installed on one side surface of the supporting plate (34) close to the pressing plate (32), a cylindrical through groove (35) parallel to the supporting plate (34) is formed in the lug (36), a cylindrical groove (37) communicated with the cylindrical through groove (35) is centrally formed in one side surface of the lug (36) close to the pressing plate (32), a pressing block (31) capable of extending into the cylindrical groove (37) is fixedly arranged on one side surface of the pressing plate (32) close to the lug (36), and one end, far away from the arc clamping plate (30), of the pressing plate (32) is connected with a bending pressing plate (33);
The disposable arteriovenous puncture blood taking needle comprises a protection device, the protection device comprises a sleeve (11) sleeved outside a hose (10), a hinge lug (12) is integrally arranged on the outer side surface of the sleeve (11), a connecting belt (13) is hinged inside the hinge lug (12) through a pin shaft, and a protection part (3) is fixedly connected to one end, far away from the hinge lug (12), of the connecting belt (13);
The protection part (3) comprises a cylinder (19) fixedly connected to one end, far away from the hinge lug (12), of the connecting belt (13), a clamping groove (21) is formed in one end face of the cylinder (19), a slot (20) is formed in the cylinder (19) through the center of the clamping groove (21), and two elastic clamping parts (24) are symmetrically embedded at the junction of the inner part of the cylinder (19) and the top wall of the clamping groove (21);
The elastic clamping part (24) comprises a cylinder body (23) fixedly embedded in the cylinder body (19), two ends of the cylinder body (23) are of a closed structure, a spring (25), a square sliding block (26) and a clamping block (22) are arranged in the cylinder body (23), the upper end of the spring (25) is abutted against the inner top wall of the cylinder body (23), the bottom end of the spring (25) is abutted against the upper part of the square sliding block (26), the bottom of the square sliding block (26) is fixedly connected with the upper part of the clamping block (22), the bottom of the clamping block (22) penetrates through the bottom wall of the cylinder body (23) and extends to the inside of the clamping groove (21), the bottom of the clamping block (22) is abutted against the bottom wall of the clamping groove (21), and an inclined surface right against the outer side of the clamping groove (21) is arranged at the bottom of the clamping block (22).
2. The disposable arteriovenous puncture blood taking needle as set forth in claim 1, wherein: the end part of the first plastic fixing pipe (5) inserted into one end of the hose (10) is a necking part (27), a plurality of convex rings (28) are arranged outside the necking part (27) at equal intervals, and a check ring (29) is integrally arranged between the convex rings (28) and the sheet-shaped handle (8) on the necking part (27).
3. The disposable arteriovenous puncture blood taking needle as set forth in claim 2, wherein: the diameter of the convex ring (28) is smaller than that of the check ring (29).
4. The disposable arteriovenous puncture blood taking needle as set forth in claim 1, wherein: the end edge of one end of the connecting pipe (16) far away from the second plastic fixing pipe (15) is of a rounding structure, and the end edge of one end of the plastic needle (17) far away from the connecting pipe (16) is of a rounding structure.
5. The disposable arteriovenous puncture blood taking needle as set forth in claim 1, wherein: two stop blocks (18) are symmetrically arranged outside the second plastic fixing pipe (15).
6. The disposable arteriovenous puncture blood taking needle as set forth in claim 1, wherein: the outer side face of the polytetrafluoroethylene block (6) extends to the outside of the first plastic fixing pipe (5), and the outer side face of the polytetrafluoroethylene block (6) is of an arc-face structure.
7. A protective device for a disposable arteriovenous puncture blood taking needle as set forth in claim 1, characterized in that: the other end face of the cylinder (19) is of an arc-shaped structure.
8. The protection device for a disposable arteriovenous puncture blood taking needle as set forth in claim 1, wherein: the cylinder (19) is made of polyethylene plastic.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725900.0A CN108523904B (en) | 2018-07-04 | 2018-07-04 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725900.0A CN108523904B (en) | 2018-07-04 | 2018-07-04 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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| Publication Number | Publication Date |
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| CN108523904A CN108523904A (en) | 2018-09-14 |
| CN108523904B true CN108523904B (en) | 2024-05-10 |
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| CN201810725900.0A Active CN108523904B (en) | 2018-07-04 | 2018-07-04 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109864807A (en) * | 2019-04-04 | 2019-06-11 | 扬州大学附属医院 | A kind of new medical lumbar puncture needle |
| CN220424332U (en) * | 2023-06-16 | 2024-02-02 | 美昕医疗器械(昆山)有限公司 | Medical liquid infusion equipment and liquid communication components and elastic hose components therefor |
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| JP2007236541A (en) * | 2006-03-07 | 2007-09-20 | Seigo Murakawa | Blood-collecting needle |
| CN203873765U (en) * | 2014-01-27 | 2014-10-15 | 中国人民解放军第二炮兵总医院 | Disposable vein blood sampling needle |
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| WO2016107028A1 (en) * | 2015-01-04 | 2016-07-07 | 上海金塔医用器材有限公司 | Anti-needlestick two-wing venipuncture needle |
| CN206659822U (en) * | 2016-11-27 | 2017-11-24 | 中国人民解放军第四军医大学 | A kind of arterial blood drawing pin plugging device |
| CN211583179U (en) * | 2018-07-04 | 2020-09-29 | 南通市中医院 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007236541A (en) * | 2006-03-07 | 2007-09-20 | Seigo Murakawa | Blood-collecting needle |
| CN203873765U (en) * | 2014-01-27 | 2014-10-15 | 中国人民解放军第二炮兵总医院 | Disposable vein blood sampling needle |
| WO2016107028A1 (en) * | 2015-01-04 | 2016-07-07 | 上海金塔医用器材有限公司 | Anti-needlestick two-wing venipuncture needle |
| CN105056340A (en) * | 2015-08-18 | 2015-11-18 | 天津哈娜好医材有限公司 | Safety type medical puncture needle and use method |
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| CN211583179U (en) * | 2018-07-04 | 2020-09-29 | 南通市中医院 | Disposable arteriovenous puncture blood taking needle and protection device thereof |
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| CN108523904A (en) | 2018-09-14 |
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