CN211300004U - Medical aseptic puncture-proof blood taking needle - Google Patents
Medical aseptic puncture-proof blood taking needle Download PDFInfo
- Publication number
- CN211300004U CN211300004U CN201922228976.5U CN201922228976U CN211300004U CN 211300004 U CN211300004 U CN 211300004U CN 201922228976 U CN201922228976 U CN 201922228976U CN 211300004 U CN211300004 U CN 211300004U
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- needle
- sealing rubber
- rubber
- protective sleeve
- blood taking
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- 239000008280 blood Substances 0.000 title claims abstract description 43
- 210000004369 blood Anatomy 0.000 title claims abstract description 42
- 229920001971 elastomer Polymers 0.000 claims abstract description 92
- 239000005060 rubber Substances 0.000 claims abstract description 92
- 230000001681 protective effect Effects 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 63
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 238000010417 needlework Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 9
- 238000005070 sampling Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 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 discloses a medical aseptic puncture-proof blood taking needle, including the protective sheath that has the clamping action, the blood taking needle, protective sheath one end is equipped with anti-skidding clamping jaw, anti-skidding clamping jaw centre gripping test tube, be equipped with the location boss on the blood taking needle, the inside cavity of protective sheath just is equipped with fan-shaped groove and spout, the location boss can be at the fan-shaped inslot internal rotation and slide from top to bottom in the spout, the one end that is close to anti-skidding clamping jaw in the protective sheath is equipped with needle point sealing rubber, the inside intermediate position of protective sheath is equipped with needle tail sealing rubber, form an aseptic airtight cavity between needle point sealing rubber and the needle tail sealing rubber, the needle. The device is simple and practical, can ensure that the blood taking needle works in an aseptic environment, and simultaneously avoids stabbing medical staff.
Description
Technical Field
The utility model relates to medical equipment, in particular to a medical sterile puncture-proof blood taking needle.
Background
At present, the syringe needle of medical blood taking needle adopts rubber protective sheath to seal more, the needle point puncture rubber protective sheath stretches into the sampling test tube when using, when the test tube is extracted to the needle point, rubber protective sheath resumes the former state under self elastic action, be used for protecting the needle point and avoid contacting the outside air, and in the sampling process, the blood sample need be put into many sampling test tubes, the needle point need pierce through rubber protective sheath many times, cause rubber protective sheath to take place excessive fatigue, can not effectively protect the needle point in sterile environment, lead to the blood taking needle unexpected discarded condition in the use many, reduce work efficiency, consequently, need to design a medical aseptic blood taking needle of preventing stinging.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that, to the shortcoming of above prior art, provide a medical aseptic thorn-proof blood taking needle, including protective sheath, the blood taking needle that has the clamping action, its characterized in that: the blood taking needle is characterized in that a positioning boss is arranged at one end, away from the needle point, of the blood taking needle, guide blocks are symmetrically arranged in the radial direction of the positioning boss, a through hole is formed in the protective sleeve, a sliding groove matched with the guide blocks is formed in the protective sleeve along the axial direction of the protective sleeve, needle tail sealing rubber and needle point sealing rubber are sequentially arranged in the through hole along the length direction of the through hole, the needle point sealing rubber is arranged at the lower end of the protective sleeve, the needle tail sealing rubber is arranged in the middle of the protective sleeve, and a sterile closed cavity is formed between the needle tail sealing rubber and the needle point;
an anti-skid clamping jaw is arranged at one end of the protective sleeve, a test tube for collecting blood is clamped by the anti-skid clamping jaw, and the needle tip sealing rubber is tightly attached to the end face of the test tube;
the cooperation of guide block and spout among this technical scheme, can be so that the blood taking needle slides one section stroke from top to bottom in the protective sheath, the inside from the top up of protective sheath is equipped with built-in alcohol cotton's sealing rubber in proper order, needle tail sealing rubber and needle point sealing rubber, an aseptic airtight cavity has been kept apart between needle point sealing rubber and the needle tail sealing rubber, the blood taking needle when not using, the needle point stops in this airtight space, the protective sheath passes through anti-skidding clamping jaw centre gripping test tube outer wall, keep the relative quiescent condition of protective sheath and test tube in the sampling process.
The utility model discloses the technical scheme who further injects is:
the protective sleeve is provided with a sliding groove, the upper end of the sliding groove is provided with a sector groove along the radial direction of the protective sleeve, the guide block can rotate in the sector groove, the outer surface of the protective sleeve is provided with a small boss at the same height position of the sector groove, the middle position of the small boss is provided with a threaded hole, the threaded hole is internally connected with an anti-rotation blocking needle in a threaded manner, the anti-rotation blocking needle extends into the sector groove to limit the rotation of the guide block, the blood taking needle can freely rotate for a certain angle in the sector groove along with the guide block, and the arranged anti-rotation blocking needle can prevent the guide block from accidentally rotating to the opening position of the sliding groove, so that the blood taking needle accidentally pierces the needle point sealing rubber, contacts with the outside air;
a fixing groove matched with the needle tail sealing rubber is arranged in the through hole in the protective sleeve, a groove matched with the needle point sealing rubber is arranged at one end, close to the anti-skidding clamping jaw, of the protective sleeve, and the fixing groove and the groove are used for fixing the needle tail sealing rubber and the needle point sealing rubber respectively to prevent the needle tail sealing rubber and the needle point sealing rubber from accidentally sliding down in the through hole in the protective sleeve;
the needle tail sealing rubber comprises two sealing rubbers which are overlapped together, and the sealing rubber at the upper end is provided with alcohol sponge which is tightly attached to the outer wall of the needle head, and the alcohol sponge can disinfect the outer wall of the blood taking needle which extends into the closed cavity, so that the environment in the closed cavity is not polluted;
the semi-spherical rubber is arranged on the needle point sealing rubber, so that the semi-spherical rubber is ensured to be in close contact with a rubber plug of the test tube when the semi-spherical rubber is compressed, the existence of the semi-spherical rubber can ensure that the needle point does not contact with the outside air when penetrating through the rubber plug and extending into the test tube, and the pollution of the needle point by the outside air is avoided;
the outer surface of the anti-skid clamping jaw is provided with small bulges with anti-skid function, and the inner surface of the anti-skid clamping jaw is provided with anti-skid rubber for increasing resistance, so that the protective sleeve is prevented from being accidentally separated from the outer wall of the test tube.
The utility model has the advantages that: the guide block is matched with the chute, so that the blood taking needle can slide up and down for a section of travel in the protective sleeve, the sealing rubber with the built-in alcohol cotton, the needle tail sealing rubber and the needle tip sealing rubber are sequentially arranged in the protective sleeve from top to bottom, a sterile closed cavity is isolated between the needle tip sealing rubber and the needle tail sealing rubber, when the blood taking needle is not used, the needle tip stays in the closed space, the protective sleeve clamps the outer wall of the test tube through the anti-skidding clamping jaws, the relative static state of the protective sleeve and the test tube in the sampling process is kept, the arranged anti-rotation blocking needle can prevent the guide block from accidentally rotating to the opening position of the chute, so that the blood taking needle accidentally pierces the needle tip sealing rubber to contact with the outside air to pollute the needle tip and simultaneously avoid pricking medical personnel, and the fixing groove and the groove arranged in the protective sleeve are respectively used, prevent their unexpected landing in the through-hole in the protective sheath, the alcohol sponge that sets up on the needle tail sealing rubber can disinfect the blood taking needle outer wall that stretches into airtight cavity, guarantee that the environment in the airtight cavity is not contaminated, the existence of hemisphere rubber can guarantee that the needle point pierces through the rubber buffer and stretches into this in-process contactless outside air of test tube, avoid outside air pollution needle point, the antiskid clamping jaw surface is equipped with the little arch of antiskid effect and the antiskid rubber that the internal surface was equipped with the increase resistance all is for preventing that the protective sheath accident breaks away from the test tube outer wall.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a middle anti-rotation needle of the present invention;
fig. 4 is a schematic structural view of the protective sheath of the present invention;
wherein: 1-protective sleeve, 1-1-through hole, 1-2-sliding groove, 1-3-anti-slip clamping jaw, 1-4-sector groove, 1-5-small boss, 1-6-threaded hole, 2-blood taking needle, 2-1-needle point, 3-positioning boss, 3-1-guide block, 4-needle tail sealing rubber, 5-needle point sealing rubber, 5-1-hemisphere rubber, 6-closed cavity, 7-anti-rotation blocking needle, 8-sealing rubber, 9-test tube, 10-rubber plug, 11-small bulge, 12-anti-slip rubber, 13-fixed groove and 14-groove.
Detailed Description
The present invention will be explained in further detail below;
example 1
The medical sterile puncture-proof blood taking needle provided by the embodiment comprises a protective sleeve 1 and a blood taking needle 2 with a clamping effect, wherein a positioning boss 3 is arranged at one end, away from a needle point 2-1, of the blood taking needle 2, a guide block 3-1 is symmetrically arranged in the circumferential direction of the positioning boss 3, a through hole 1-1 is formed in the protective sleeve 1, a chute 1-2 matched with the guide block 3-1 is formed in the protective sleeve 1 along the axial direction of the protective sleeve, needle tail sealing rubber 4 and needle point sealing rubber 5 are sequentially arranged in the through hole 1-1 along the length direction of the through hole, the needle point sealing rubber 5 is arranged at the lower end of the protective sleeve 1, the needle tail sealing rubber 4 is arranged in the middle of the protective sleeve 1, and a sterile closed cavity 6 is formed between the needle tail sealing rubber 4 and the needle point sealing rubber;
one end of the protective sleeve 1 is provided with an anti-skid clamping jaw 1-3, a test tube 9 for collecting blood is clamped by the anti-skid clamping jaw 1-3, and the needle tip sealing rubber 5 is tightly attached to the end face of the test tube 9;
a sector groove 1-4 is formed in the protective sleeve 1 and located at the upper end of the sliding groove 1-2 along the radial direction of the protective sleeve 1, the guide block 3-1 can rotate in the sector groove 1-4, a small boss 1-5 is arranged on the outer surface of the protective sleeve 1 and located at the same height position of the sector groove 1-4, a threaded hole 1-6 is formed in the middle of the small boss 1-5, an anti-rotation blocking needle 7 is connected to the threaded hole 1-6 in a threaded mode, and the anti-rotation blocking needle 7 extends into the sector groove 1-4 to limit the guide block 3-1 to rotate;
a fixing groove 13 matched with the needle tail sealing rubber 4 is arranged in a through hole 1-1 in the protective sleeve 1, and a groove 14 matched with the needle tip sealing rubber 5 is arranged at one end, close to the anti-skidding clamping jaw 1-3, of the protective sleeve 1;
the needle tail sealing rubber 4 comprises two sealing rubbers 8 which are overlapped together, and the sealing rubber 8 at the upper end is provided with alcohol sponge 8-1 which is tightly attached to the outer wall of the needle head;
the needle tip sealing rubber 5 is provided with a hemisphere rubber 5-1, and the hemisphere rubber 5-1 is ensured to be tightly contacted with a rubber plug 10 of the test tube 9 during pressing;
the outer surface of the anti-skid clamping jaw 1-3 is provided with small bulges 11 with anti-skid function, and the inner surface is provided with anti-skid rubber 12 for increasing resistance.
The working process of the embodiment:
a user holds a test tube stably, holds a protective sleeve on one hand, firstly, the protective sleeve is close to a test tube opening, is slowly pushed after alignment, so that an anti-skid clamping jaw on the protective sleeve clamps the outer wall of the test tube, when a rubber plug on the test tube is tightly pressed with needle point sealing rubber, hemispherical rubber is completely contacted with the rubber plug, the test tube and the protective sleeve are kept relatively stable at the moment, the anti-skid clamping jaw part on the protective sleeve is pinched by the hand holding the test tube, then the hand holding the protective sleeve is loosened, an anti-skid blocking needle is screwed out, the rear end of a blood taking needle is rotated, when the test tube is rotated to a chute opening, the blood taking needle can be pushed downwards until the needle point part completely extends into the test tube, after the sampling is completed, the blood taking needle is firstly pulled back until the blood taking needle is pulled to the maximum angle, the anti-skid blocking needle is screwed in, finally, the protective sleeve, the tip portion is completely sterile.
Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any change of doing on technical scheme basis all falls into the utility model discloses within the protection scope.
Claims (6)
1. The utility model provides a medical aseptic puncture-proof blood taking needle, includes protective sheath (1), blood taking needle (2) that have the clamping action, its characterized in that: one end of a blood taking needle (2) far away from a needle point (2-1) is provided with a positioning boss (3), the positioning boss (3) is symmetrically provided with guide blocks (3-1) in the circumferential direction, a through hole (1-1) is formed in the protective sleeve (1), a sliding groove (1-2) matched with the guide blocks (3-1) is formed in the protective sleeve (1) along the axial direction, needle tail sealing rubber (4) and needle point sealing rubber (5) are sequentially arranged in the through hole (1-1) along the length direction, the needle point sealing rubber (5) is arranged at the lower end of the protective sleeve (1), the needle tail sealing rubber (4) is arranged in the middle of the protective sleeve (1), and a sterile closed cavity (6) is formed between the needle tail sealing rubber (4) and the needle point sealing rubber (5);
protective sheath (1) one end is equipped with anti-skidding clamping jaw (1-3), will treat test tube (9) centre gripping of collecting blood through anti-skidding clamping jaw (1-3), needle point sealing rubber (5) and test tube (9) terminal surface closely laminate.
2. A medical sterile puncture-proof blood lancet according to claim 1, characterized in that: protective sheath (1) is last and be located the upper end of spout (1-2) and be equipped with fan-shaped groove (1-4) along protective sheath (1) radial direction, guide block (3-1) can be at fan-shaped groove (1-4) internal rotation, protective sheath (1) surface just is located fan-shaped groove (1-4) same high position and is equipped with little boss (1-5), and little boss (1-5) intermediate position is equipped with screw hole (1-6), and threaded connection has in screw hole (1-6) prevents changeing and keeps off needle (7), prevent changeing and keep off needle (7) and stretch into in fan-shaped groove (1-4) restriction guide block (3-1) and rotate.
3. A medical sterile puncture-proof blood lancet according to claim 1, characterized in that: a fixing groove (13) matched with the needle tail sealing rubber (4) is arranged in a through hole (1-1) in the protective sleeve (1), and a groove (14) matched with the needle tip sealing rubber (5) is arranged at one end, close to the anti-skidding clamping jaw (1-3), of the protective sleeve (1).
4. A medical sterile puncture-proof blood lancet according to claim 1, characterized in that: the needle tail sealing rubber (4) comprises two sealing rubbers (8) which are overlapped together, and alcohol sponge (8-1) which is tightly attached to the outer wall of the needle head is arranged on the sealing rubber (8) which is positioned at the upper end.
5. A medical sterile puncture-proof blood lancet according to claim 1, characterized in that: be equipped with a hemisphere rubber (5-1) on needle point sealing rubber (5), guarantee hemisphere rubber (5-1) and rubber buffer (10) the in close contact with of test tube (9) during compressing tightly.
6. A medical sterile puncture-proof blood lancet according to claim 1, characterized in that: the outer surface of the anti-skid clamping jaw (1-3) is provided with small bulges (11) with anti-skid function, and the inner surface is provided with anti-skid rubber (12) for increasing resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922228976.5U CN211300004U (en) | 2019-12-12 | 2019-12-12 | Medical aseptic puncture-proof blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922228976.5U CN211300004U (en) | 2019-12-12 | 2019-12-12 | Medical aseptic puncture-proof blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211300004U true CN211300004U (en) | 2020-08-21 |
Family
ID=72062082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922228976.5U Active CN211300004U (en) | 2019-12-12 | 2019-12-12 | Medical aseptic puncture-proof blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211300004U (en) |
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2019
- 2019-12-12 CN CN201922228976.5U patent/CN211300004U/en active Active
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