CN215687881U - Self-fixing multi-channel safety type arteriovenous blood sampling device - Google Patents
Self-fixing multi-channel safety type arteriovenous blood sampling device Download PDFInfo
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- CN215687881U CN215687881U CN202122029177.2U CN202122029177U CN215687881U CN 215687881 U CN215687881 U CN 215687881U CN 202122029177 U CN202122029177 U CN 202122029177U CN 215687881 U CN215687881 U CN 215687881U
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- needle
- blood sampling
- puncture
- lifting
- connector
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- 238000010241 blood sampling Methods 0.000 title claims abstract description 53
- 210000001367 artery Anatomy 0.000 claims abstract description 9
- 238000002627 tracheal intubation Methods 0.000 claims abstract description 9
- 210000003462 vein Anatomy 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 4
- 239000008280 blood Substances 0.000 abstract description 20
- 210000004369 blood Anatomy 0.000 abstract description 20
- 230000000474 nursing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 9
- 239000000523 sample Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 206010006895 Cachexia Diseases 0.000 description 1
- 206010018852 Haematoma Diseases 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000012503 blood component Substances 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000026500 emaciation Diseases 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model provides a from fixed multichannel safety type arteriovenous blood sampling device, solves the lack fixing device that prior art exists, and the blood gas needle slides out easily, leads to the puncture failure, increases the misery of patient's repeated puncture, problem that safety in utilization is poor. Including the blood sampling pjncture needle that the upper end was provided with the pjncture needle connector, its characterized in that: the upper end of the puncture needle connector is provided with an intubation tube connector, a double-head connecting hose is inserted in the intubation tube connector, the lower end of the double-head connecting hose is connected with the blood sampling puncture needle, and two connectors at the upper end of the double-head connecting hose are respectively connected with the artery blood sampling needle cylinder and the vein blood sampling connector; two groups of split needle caps which are opened and closed are arranged on the outer side of the blood sampling puncture needle in a swinging way. Its reasonable in design, compact structure can fix the blood sampling needle body, effectively improves the puncture success rate, and the puncture just can accomplish the collection of patient's artery, venous blood once, reduces the misery of patient's puncture many times, reduces medical personnel's intensity of labour, promotes the efficiency of nursing work.
Description
Technical Field
The utility model belongs to the technical field of medical auxiliary appliances, and particularly relates to a self-fixing multi-channel safety arteriovenous blood sampling device which can fix a blood sampling needle body, effectively improve the success rate of puncture, can complete the collection of arterial and venous blood of a patient by puncturing once, reduce the pain of the patient caused by multiple times of puncture, reduce the labor intensity of medical personnel and improve the nursing work efficiency.
Background
In hospital clinical work, venous blood and arterial blood of a patient need to be collected in order to check whether blood components of the patient are normal or to perform blood gas analysis. However, the venous blood and the arterial blood are collected clinically at present, and the traditional operation mode causes the patient to suffer from two times of puncture. Meanwhile, the existing clinical arterial blood-gas needle is not provided with a fixing device, so that the in-process of collecting arterial blood is required to keep a patient still and keep a nurse's hand still, otherwise, the blood-gas needle slides out easily, puncture failure is caused, and the pain of repeated puncture of the patient is increased. In addition, the accident that medical staff is accidentally pricked by the needle head often occurs due to the breakage of the needle head or improper operation, and the personal safety of the medical staff is seriously affected. There is a need for improved prior art methods and devices for collecting venous and arterial blood.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems, the utility model provides the self-fixing multi-channel safety arteriovenous blood sampling device which can fix a blood sampling needle body, effectively improves the success rate of puncture, can finish the collection of arterial and venous blood of a patient by puncturing once, reduces the pain of the patient caused by multiple times of puncture, reduces the labor intensity of medical personnel and improves the nursing work efficiency.
The technical scheme adopted by the utility model is as follows: this from fixed multichannel safety type arteriovenous blood sampling device includes blood sampling pjncture needle, its characterized in that: the upper end of the blood sampling puncture needle is provided with a puncture needle connector with a hollow structure, the upper end of the puncture needle connector is provided with an intubation tube connector, a double-end connecting hose is inserted and connected in a through hole in the middle of the intubation tube connector, the lower end of the double-end connecting hose is connected with the upper end of the blood sampling puncture needle, and two connectors at the upper end of the double-end connecting hose are respectively connected with an artery blood sampling needle cylinder and a vein blood sampling connector; meanwhile, the outer side of the blood sampling puncture needle is also provided with two groups of open-close type split needle caps, the upper ends of the open-close type split needle caps are connected with the puncture needle connector through needle cap connecting sleeves, and the two groups of open-close type split needle caps can be opened and closed in a swinging mode along the parts of the open-close type split needle caps connected with the needle cap connecting sleeves.
Lifting external threads are arranged on the puncture needle connector and above the needle cap connecting sleeve, a rotating lifting nut is arranged on the lifting external threads, the rotating lifting nut is composed of a nut main body, and the nut main body is matched and connected with the lifting external threads on the puncture needle connector through lifting internal threads; the rotary lifting nut is connected with the two groups of split needle caps through the split driving connecting rods. The lifting of the rotary lifting nut is realized by utilizing the rotation of the rotary lifting nut on the lifting external thread of the puncture needle connector, and then the opening and closing driving connecting rods on the two sides are driven to open or close the two groups of opening and closing split needle caps.
The nut body of the rotating lifting nut is also provided with a lifting clamping plate sliding clamping groove, the lifting clamping plate sliding clamping groove is provided with a connecting rod lifting clamping plate, and the connecting rod lifting clamping plate is movably clamped in the lifting clamping plate sliding clamping groove of the rotating lifting nut through a lifting nut sleeve hole in the middle; and the upper end of the opening and closing driving connecting rod is hinged with the upper hinge point of the connecting rod at the end side of the connecting rod lifting clamping plate, and the lower end of the opening and closing driving connecting rod is hinged with the lower hinge point of the connecting rod on the opening and closing split needle cap. In the process of rotating the lifting nut to rotate and lift, the connecting rod lifting clamping plate slides in the lifting clamping plate sliding clamping groove of the rotating lifting nut and slides with the rotating lifting nut, so that the connecting rod lifting clamping plate and the opening and closing driving connecting rods connected with the two sides of the connecting rod lifting clamping plate are ensured to lift up and down along with the rotating lifting nut without rotating, and the supporting positions of the two groups of opening and closing split needle caps are fixed.
The needle cap connecting sleeve is formed by assembling two symmetrically-arranged semi-conical sleeves in a split manner, an arc-shaped conical sleeve connecting convex edge is arranged on the inner side of each semi-conical sleeve, and each semi-conical sleeve is connected with the convex edge through the corresponding conical sleeve and is clamped with a conical sleeve connecting clamping groove arranged on the side wall of the lower end of the puncture needle connecting body; the upper end of the split needle cap is movably connected with the lower end of the corresponding semi-conical sleeve through a flexible bending part. The two groups of split needle caps are detachably connected with the puncture needle connector through the semi-conical sleeve of the split assembly structure, and the split needle caps are convenient to detach and replace and use.
The upper parts of the two half conical sleeves with the split assembly structures are connected with the half conical sleeve connecting clamp holes through the half conical sleeve connecting buckles. So as to facilitate the disassembly, the separation, the combination and the assembly of the two semi-conical sleeves of the needle cap connecting sleeve.
The utility model has the beneficial effects that: because the utility model adopts the blood sampling puncture needle with the upper end provided with the puncture needle connector, the upper end of the puncture needle connector is provided with the cannula connector, the through hole in the middle of the cannula connector is inserted and connected with the double-end connecting hose, the lower end of the double-end connecting hose is connected with the upper end of the blood sampling puncture needle, and the two connectors at the upper end of the double-end connecting hose are respectively connected with the artery blood sampling needle cylinder and the vein blood sampling connector; the outer side swing of blood sampling pjncture needle is provided with two sets of open-close type components of a whole that can function independently needle caps, and open-close type components of a whole that can function independently needle cap upper end passes through the structural style that needle cap adapter sleeve links to each other with the pjncture needle connector, so its reasonable in design, compact structure can fix the blood sampling needle body, effectively improves the puncture success rate, and the puncture just can accomplish the collection of patient's arteries and veins blood once, reduces the misery of patient's puncture many times, reduces medical personnel's intensity of labour, promotes the efficiency of nursing work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention (two split needle caps are in an open state).
Fig. 2 is an exploded view of the puncture needle connector, the needle cap connecting sleeve and the split open needle cap in fig. 1.
Fig. 3 is a schematic view of a rotary elevator nut of fig. 1.
Fig. 4 is a schematic view of a connection structure of the link lifting engagement plate and the opening and closing driving link in fig. 1.
Fig. 5 is a sectional view of the internal structure of fig. 1.
Fig. 6 is a schematic view of the use state of fig. 1 in which the rotary lifting nut moves downward to drive the opening/closing driving link to drive the two sets of opening/closing split needle caps to close.
The sequence numbers in the figures illustrate: 1 blood sampling puncture needle, 2 puncture needle connectors, 3 intubation connectors, 4 venous blood sampling connectors, 5 arterial blood sampling syringes, 6 double-end connecting hoses, 7 needle cap connecting sleeves, 8 open-close type split needle caps, 9 open-close driving connecting rods, 10 connecting rod lifting clamping plates, 11 rotating lifting nuts, 12 lifting external threads, 13 semi-conical sleeves, 14 flexible bending parts, 15 conical sleeve connecting convex edges, 16 conical sleeve connecting clamping grooves, 17 semi-conical sleeve connecting buckles, 18 semi-conical sleeve connecting clamping holes, 19 connecting rod lower hinge points, 20 nut main bodies, 21 lifting internal threads, 22 lifting clamping plate sliding clamping grooves, 23 lifting nut sleeve connecting holes and 24 connecting rod upper hinge points.
Detailed Description
The specific structure of the present invention will be described in detail with reference to FIGS. 1 to 6. The self-fixing multi-channel safety type arteriovenous blood sampling device comprises a blood sampling puncture needle 1, wherein a puncture needle connector 2 with a hollow structure is arranged at the upper end of the blood sampling puncture needle 1; the upper end of the puncture needle connector 2 is provided with an intubation connector 3, and a double-head connecting hose 6 is inserted into a through hole in the middle of the intubation connector 3. A single tube at the lower end of the double-end connecting hose 6 is connected with the upper end of the blood sampling puncture needle 1; two connectors of a double tube at the upper end of the double-end connecting hose 6 are respectively connected with an arterial blood sampling needle cylinder 5 for collecting arterial blood and a venous blood sampling joint 4 for collecting venous blood. Two groups of open-close type split needle caps 8 are movably arranged on the outer side of the blood sampling puncture needle 1, and the upper ends of the open-close type split needle caps 8 are connected with the puncture needle connector 2 through needle cap connecting sleeves 7; meanwhile, the lower end of the split needle cap 8 is provided with a skin contact part for being jointed with the skin of the arm of the patient.
A section of lifting external thread 12 is arranged on the puncture needle connector 2 and above the needle cap connecting sleeve 7, and a rotary lifting nut 11 is arranged on the lifting external thread 12. The rotary lifting nut 11 is composed of a nut body 20, and the nut body 20 is matched and connected with a lifting external thread 12 on the puncture needle connector 2 through a lifting internal thread 21 at the middle part. The rotary lifting nut 11 is connected with the two groups of split needle caps 8 through the split driving connecting rods 9; and then the rotation of the rotary lifting nut 11 on the lifting external thread 12 of the puncture needle connector 2 is utilized to realize the lifting of the rotary lifting nut 11 so as to drive the opening and closing driving connecting rods 9 at the two sides to swing, so that the two groups of opening and closing split needle caps 8 are opened or closed.
A lifting clamping plate sliding clamping groove 22 is further formed in the nut main body 20 of the rotating lifting nut 11, and a connecting rod lifting clamping plate 10 is arranged on the lifting clamping plate sliding clamping groove 22; the connecting rod lifting clamping plate 10 is movably clamped in the lifting clamping plate sliding clamping groove 22 of the rotating lifting nut 11 through the lifting nut sleeve hole 23 in the middle. The upper ends of the two opening and closing driving connecting rods 9 are respectively hinged with the upper connecting rod hinge points 24 at the two end sides of the connecting rod lifting clamping plate 10, and the lower ends of the opening and closing driving connecting rods 9 are respectively hinged with the lower connecting rod hinge points 19 on the corresponding opening and closing split needle caps 8. Therefore, in the process of rotating and lifting the rotary lifting nut 11, the connecting rod lifting clamping plate 10 slides with the rotary lifting nut 11 in the lifting clamping plate sliding clamping groove 22 of the rotary lifting nut 11, so as to ensure that the connecting rod lifting clamping plate 10 and the opening and closing driving connecting rods 9 connected with the two sides of the connecting rod lifting clamping plate 10 only lift up and down along with the rotary lifting nut 11 without rotating, and further fix the supporting positions of the opening and closing split needle caps 8 on the two sides of the blood sampling puncture needle 1.
In order to facilitate the disassembly and replacement of the split needle cap 8 and the use of the device, the needle cap connecting sleeve 7 at the upper end of the split needle cap 8 is formed by assembling two symmetrically arranged semi-conical sleeves 13 in a split way. The inner side of the semi-conical sleeve 13 is provided with an arc-shaped conical sleeve connecting convex edge 15; and the semi-conical sleeves 13 are respectively connected with the convex edges 15 through conical sleeves and are clamped with conical sleeve connecting clamping grooves 16 arranged on the side wall of the lower end of the puncture needle connector 2. The upper ends of the split needle caps 8 are movably connected with the lower ends of the corresponding semi-conical sleeves 13 through flexible bending parts 14, and the two split needle caps 8 can be opened and closed in a swinging mode along the parts, connected with the semi-conical sleeves 13, of the split needle caps. Therefore, the two groups of split needle caps 8 are detachably connected with the lower part of the puncture needle connector 2 through the semi-conical sleeve 13 with the split assembly structure. Meanwhile, the upper parts of the two half-cone sleeves 13 with the split assembly type structure are connected with the half-cone sleeve connecting clamping holes 18 through the half-cone sleeve connecting clamping buckles 17, so that the two half-cone sleeves 13 of the needle cap connecting sleeve 7 can be conveniently detached, split and combined for assembly.
This from solid multichannel safety type sound arteries and veins blood sampling device rotates the lower extreme that lifting nut 11 is located the 12 sections of lift external screw threads on pjncture needle connector 2 when not using, promptly: the opening and closing driving connecting rods 9 on the two sides drive the two groups of opening and closing type split needle caps 8 to be in a closed state (as shown in figure 6), and the blood sampling puncture needle 1 is enclosed in the needle caps. When medical personnel need take a blood sample to the patient and puncture, rotatory lifting nut 11 that rotates, make it along lift external screw thread 12 rebound, and then through the connecting rod lift joint board 10 along with rotating lifting nut 11 together upward movement, drive the drive connecting rod 9 that opens and shuts of both sides round the hinge point 24 on the connecting rod, upwards swing to make two sets of open and shut formula components of a whole that can function independently needle caps 8 of blood sample puncture needle 1 outside part gradually, and form certain support angle (as shown in figure 1). Then, the two groups of split needle caps 8 separated by the angle are attached to the arm skin of the patient by using the skin contact parts at the lower ends of the two groups of split needle caps 8 to form a stable supporting structure in the blood sampling puncture process; in addition, the two split needle caps 8 can ensure that the position of the blood sampling puncture needle 1 is fixed in the process of swinging up and down along with the movement of the rotary lifting nut 11, so that the subsequent blood sampling operation can be smoothly carried out without the limitation of the blood sampling amount and the blood sampling time. Then, the medical staff collects arterial blood or venous blood of the patient according to the treatment requirement by using the arterial blood collection needle cylinder 5 or the venous blood collection joint 4 arranged at the two connecting ports of the double-head connecting hose 6.
In addition, for patients with general edema, shock and extreme emaciation, the operation of puncture by a touch method is difficult, the anatomical positioning adopted by the traditional method belongs to blind probing operation, the success rate of puncture once is low, repeated puncture is sometimes needed, the patient who is awake is nervous and painful, and complications such as spasm, bleeding, hematoma and the like of a puncture part are easily caused, so that puncture failure and blood sampling are difficult. At the moment, the self-fixing multi-channel safety arteriovenous blood sampling device needs to be used for puncture under the coordination of ultrasonic guidance so as to utilize the ultrasonic to well image the blood vessel and clearly observe the thickness, the depth and the running of the artery; and an out-of-plane method is adopted during puncture, the artery image is placed in the center of the probe and kept fixed, and the puncture needle punctures by taking the midpoint of the probe as a reference, so that the puncture success rate can be greatly improved.
Claims (5)
1. The utility model provides a from fixed multichannel safety type arteriovenous blood sampling device, includes blood sampling pjncture needle (1), its characterized in that: the upper end of the blood sampling puncture needle (1) is provided with a puncture needle connector (2) with a hollow structure, the upper end of the puncture needle connector (2) is provided with an intubation tube connector (3), a double-end connecting hose (6) is inserted into a through hole in the middle of the intubation tube connector (3), the lower end of the double-end connecting hose (6) is connected with the upper end of the blood sampling puncture needle (1), and two connectors at the upper end of the double-end connecting hose (6) are respectively connected with an artery blood sampling needle cylinder (5) and a vein blood sampling connector (4); meanwhile, the outer side of the blood sampling puncture needle (1) is also provided with two groups of open-close type split needle caps (8), the upper ends of the open-close type split needle caps (8) are connected with the puncture needle connector (2) through needle cap connecting sleeves (7), and the two groups of open-close type split needle caps (8) can be opened and closed along the positions, connected with the needle cap connecting sleeves (7), of the open-close type split needle caps in a swinging mode.
2. The self-fixating, multi-channel, safety arteriovenous lancing device of claim 1, wherein: a lifting external thread (12) is arranged on the puncture needle connector (2) and above the needle cap connecting sleeve (7), a rotating lifting nut (11) is arranged on the lifting external thread (12), the rotating lifting nut (11) is composed of a nut main body (20), and the nut main body (20) is matched and connected with the lifting external thread (12) on the puncture needle connector (2) through a lifting internal thread (21); the rotary lifting nut (11) is connected with the two groups of open-close type split needle caps (8) through open-close driving connecting rods (9).
3. The self-fixating, multi-channel, safety arteriovenous lancing device of claim 2, wherein: a lifting clamp plate sliding clamping groove (22) is further formed in the nut main body (20) of the rotating lifting nut (11), a connecting rod lifting clamp plate (10) is arranged on the lifting clamp plate sliding clamping groove (22), and the connecting rod lifting clamp plate (10) is movably clamped in the lifting clamp plate sliding clamping groove (22) of the rotating lifting nut (11) through a lifting nut sleeving hole (23) in the middle; and the upper end of the opening and closing driving connecting rod (9) is hinged with a connecting rod upper hinge point (24) at the end side of the connecting rod lifting clamping plate (10), and the lower end of the opening and closing driving connecting rod (9) is hinged with a connecting rod lower hinge point (19) on the opening and closing split needle cap (8).
4. The self-fixating, multi-channel, safety arteriovenous lancing device of claim 1, wherein: the needle cap connecting sleeve (7) is formed by assembling two symmetrically-arranged semi-conical sleeves (13) in a split manner, an arc-shaped conical sleeve connecting convex edge (15) is arranged on the inner side of each semi-conical sleeve (13), and each semi-conical sleeve (13) is connected with the convex edge (15) through the corresponding conical sleeve and is clamped with a conical sleeve connecting clamping groove (16) formed in the side wall of the lower end of the puncture needle connecting body (2); the upper end of the split needle cap (8) is movably connected with the lower end of the corresponding semi-conical sleeve (13) through a flexible bending part (14).
5. The self-fixating, multi-channel, safety arteriovenous lancing device of claim 4, wherein: the upper parts of the two half-cone sleeves (13) with the split assembly structures are connected with the half-cone sleeve connecting clamping holes (18) through half-cone sleeve connecting clamping buckles (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122029177.2U CN215687881U (en) | 2021-08-26 | 2021-08-26 | Self-fixing multi-channel safety type arteriovenous blood sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122029177.2U CN215687881U (en) | 2021-08-26 | 2021-08-26 | Self-fixing multi-channel safety type arteriovenous blood sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215687881U true CN215687881U (en) | 2022-02-01 |
Family
ID=80007581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122029177.2U Expired - Fee Related CN215687881U (en) | 2021-08-26 | 2021-08-26 | Self-fixing multi-channel safety type arteriovenous blood sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215687881U (en) |
-
2021
- 2021-08-26 CN CN202122029177.2U patent/CN215687881U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |