CN214907006U - Anti-pollution blood taking needle - Google Patents
Anti-pollution blood taking needle Download PDFInfo
- Publication number
- CN214907006U CN214907006U CN202120929641.0U CN202120929641U CN214907006U CN 214907006 U CN214907006 U CN 214907006U CN 202120929641 U CN202120929641 U CN 202120929641U CN 214907006 U CN214907006 U CN 214907006U
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- China
- Prior art keywords
- needle
- silica gel
- blood
- handle
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000008280 blood Substances 0.000 title claims abstract description 58
- 210000004369 blood Anatomy 0.000 title claims abstract description 56
- 239000000741 silica gel Substances 0.000 claims abstract description 55
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 55
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000010241 blood sampling Methods 0.000 claims abstract description 31
- 238000011109 contamination Methods 0.000 claims 5
- 241000425571 Trepanes Species 0.000 claims 4
- 229920002379 silicone rubber Polymers 0.000 claims 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 3
- 210000001367 artery Anatomy 0.000 description 7
- 210000003462 vein Anatomy 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009534 blood test Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 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 relates to the field of medical equipment, specifically disclose an anti-pollution type blood taking needle, include: the syringe, the silica gel cover that has the closed seam, the syringe needle subassembly that has needle handle and syringe needle, be provided with first needle point and second needle point on the syringe needle. The utility model discloses a be provided with the silica gel cover on the needle file of cylinder, be provided with the closed seam of normally closed in the silica gel cover, when the syringe needle subassembly was installed on the cylinder, the syringe needle can pass closed seam to strut it, blood sampling with the blood sampling chamber intercommunication of cylinder, after taking a blood sample, after dismantling the syringe needle subassembly, closed seam can close rapidly, seal the blood sample in the blood sampling chamber, thereby played the effect of putting the pollution, and the operation process is simple safe easily to control, after the syringe needle subassembly was abandoned, the inspection personnel also need not worry the danger of being stabbed by the syringe needle; the blood taking needle is simple in integral structure, low in cost and easy to popularize.
Description
Technical Field
The utility model belongs to the field of medical equipment, in particular to an anti-pollution blood taking needle.
Background
A blood collection needle is a medical instrument which is very popular in clinical medicine and is used for collecting samples for various blood tests of patients at ordinary times. The blood taking needles are divided into vein blood taking needles and artery blood taking needles, and the vein blood taking needles usually draw the vein blood through a vein with a hose so as to achieve the purpose of blood taking by depending on the negative pressure in the blood taking tube; however, when the artery is used for blood sampling, because the blood in the artery has a certain pressure, the blood sampling needle in the blood sampling device (similar to a device of an injector) can be directly punctured into the artery, so that the blood in the artery can be naturally pressed into the blood sampling device, and after the blood sampling is finished, a medical worker can rapidly puncture the blood sampling needle into the silica gel sleeve to seal the silica gel sleeve, shake the silica gel sleeve, place the silica gel sleeve and send a test.
When conventional artery blood taking needle used, at first medical personnel need prick the plug with the blood taking needle is perpendicular after using, owing to in order to place the stabbing hand, consequently can not hold the plug with another hand, will lead to aligning the difficulty like this, do not control well, operating time can be longer to cause the pollution of blood sample, at the in-process of censorship moreover, the syringe needle still can stab the people, causes danger to measurement personnel.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anti-pollution type blood taking needle to overcome the processing work after current artery blood taking needle blood sampling and do not control well, the time is of a specified duration easily pollutes blood, and the defect that the security is low.
In order to achieve the above object, the utility model provides an anti-pollution type blood taking needle, include: the blood sampling device comprises a needle cylinder, a needle base and a piston assembly, wherein a blood sampling cavity is arranged in the needle cylinder, one end of the needle cylinder is convexly provided with the needle base, the needle base is provided with a base hole communicated with the blood sampling cavity, and the blood sampling cavity is internally provided with the piston assembly; the silica gel sleeve is sleeved on the needle seat, a closed seam is formed in the silica gel sleeve, and the closed seam corresponds to the seat hole; the needle head assembly comprises a needle handle and a needle head, the needle handle is detachably connected with one end of the needle cylinder and covers the outer side of the silica gel sleeve, the needle head is provided with a first needle point and a second needle point which are far away from each other, the first needle point penetrates through the closed seam and extends into the seat hole, the second needle point extends towards the outside of the needle handle, a blood channel is arranged in the needle head, and the first needle point is communicated with the second needle point through the blood channel; when the first needle point is pulled out of the closing seam, the closing seam can be automatically closed.
Preferably, in the above technical scheme, one end of the needle cylinder is further provided with a connecting seat ring, the connecting seat ring is arranged around the periphery of the needle seat, and the outer wall of the connecting seat ring is provided with external threads.
Preferably, in the above technical scheme, a needle handle cavity is arranged inside the needle handle, a mounting hole communicated with the needle handle cavity is arranged at one end of the needle handle, and an internal thread matched with the external thread is arranged on the wall of the mounting hole.
Preferably, in the above technical scheme, the needle head is fixedly arranged at the other end of the needle handle, and the first needle tip extends into the cavity of the needle handle.
Preferably, in the above technical solution, a chamfer is inverted between the end face of the other end of the needle handle cavity and the inner wall of the needle handle cavity.
Preferably, among the above-mentioned technical scheme, the silica gel trepanning has been seted up to the one end of silica gel cover, the one end of silica gel trepanning is followed the one end of silica gel cover outwards extends and forms the drill way, closed seam is located the other end of silica gel cover, and extend to the other end of silica gel trepanning, silica gel trepanning internal diameter with the external diameter looks adaptation of needle file.
Preferably, in the above technical scheme, an annular groove is formed in the wall of the silica gel trepanning hole, and a clamping ring corresponding to the annular groove is convexly arranged on the periphery of the needle seat.
Preferably, in the above technical solution, a holding groove is formed in an outer peripheral ring of the silica gel sleeve.
Preferably, in the above technical solution, the cross section of the holding groove is in an arc structure.
Preferably, in the above technical solution, the piston assembly includes: a piston slidably disposed in the blood collection chamber; and one end of the push rod is connected with the piston, and the other end of the push rod extends outwards from the other end of the needle cylinder.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides an anti-pollution type blood taking needle is provided with the silica gel cover on the needle file of cylinder, be provided with the closed seam of normal close in the silica gel cover, when the syringe needle subassembly is installed on the cylinder, the syringe needle can pass the closed seam to strut it, blood sampling with the blood sampling chamber intercommunication of cylinder, after taking a blood sample, after dismantling the syringe needle subassembly, the closed seam can be closed rapidly, seal the blood sample in the blood sampling chamber, thereby played the effect of putting the pollution, and the operation process is simple safe easily to control, after the syringe needle subassembly is discarded, the inspection personnel also need not worry the danger of being stabbed by the syringe needle; the blood taking needle is simple in integral structure, low in cost and easy to popularize.
2. The utility model provides a syringe needle among the syringe needle subassembly is provided with two needle points, and when the syringe needle unit mount was on the cylinder, its first needle point that is close to the link can strut closed seam more easily, communicates blood passageway and blood sampling chamber each other in order to be ready for use.
3. The utility model provides a terminal surface inner wall of the other end in needle handle chamber is equipped with conical chamfer, and its effect of playing is, when the needle handle was installed on the needle file, can rely on the inclination extrusion silica gel cover of self to make the closure seam inseparabler with the lateral wall laminating of syringe needle, can not cause blood to leak outward during the blood sampling.
4. The utility model provides a periphery of silica gel cover is provided with grips the groove, can make things convenient for the measurement personnel when examining, and the frictional force of extracting the silica gel cover is bigger, extracts it more easily, pours out blood sample.
5. The utility model provides a ring on the silica gel cover and the screens ring on the needle file can mutually support, not only can prevent that the silica gel cover from droing, but also can play the effect of reinforcing leakproofness.
Drawings
FIG. 1 is a partial cut-away view of the anti-pollution blood taking needle of the present invention.
Fig. 2 is a partial cross-sectional view at the needle assembly.
Description of the main reference numerals:
1-syringe, 11-blood collecting cavity, 12-connecting seat ring, 13-external thread, 14-internal thread;
2-needle seat, 21-seat hole;
3-piston assembly, 31-piston, 32-push rod;
4-silica gel sleeve, 41-closed seam, 42-rubber sleeve hole, 43-hole opening, 44-ring groove and 45-holding groove;
5-needle assembly, 51-needle shaft, 511-needle shaft cavity, 512-mounting hole, 52-needle, 521-first needle point, 522-second needle point, 523-blood channel.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
As shown in fig. 1 to 2, the contamination-preventive lancet in this embodiment includes: the blood collection needle comprises a needle cylinder 1, a blood collection cavity 11, a connecting seat ring 12, an external thread 13, an internal thread 14, a needle base 2, a seat hole 21, a piston assembly 3, a piston 31, a push rod 32, a silica gel sleeve 4, a closed seam 41, a rubber sleeve hole 42, an orifice 43, a ring groove 44, a holding groove 45, a needle assembly 5, a needle handle 51, a needle handle cavity 511, a mounting hole 512, a needle 52, a first needle point 521, a second needle point 522 and a blood channel 523.
The silica gel sleeve 4 is sleeved on the needle base 2, a closed seam 41 is arranged in the silica gel sleeve 4, the closed seam 41 corresponds to the orifice of the seat hole 21, a silica gel sleeve hole 42 is formed in one end of the silica gel sleeve 4, one end of the silica gel sleeve hole 42 extends outwards from one end of the silica gel sleeve 4 to form an orifice 43, the closed seam 41 is arranged at the other end of the silica gel sleeve 4 and extends to the other end of the silica gel sleeve hole 42, and the inner diameter of the silica gel sleeve hole 42 is matched with the outer diameter of the needle base 2 so that the silica gel sleeve 4 can be tightly installed on the needle base 2; an annular groove 44 is formed in the wall of the silica gel sleeve hole 42, a clamping ring 21 corresponding to the annular groove 44 is arranged on the outer periphery of the needle base 2 in a protruding mode, and the annular groove 44 and the needle clamping ring 21 can be matched with each other, so that the silica gel sleeve 4 can be prevented from falling off, and the sealing performance can be enhanced; the annular groove 45 that grips has been seted up to the periphery of silica gel cover 4, and the cross section that should grip groove 45 is circular arc structure, grips groove 45 and can make things convenient for measurement personnel when detecting, and the frictional force of extracting silica gel cover 4 is bigger, extracts it more easily, pours out blood sample.
One end of the syringe 1 is also provided with a connecting seat ring 12, the connecting seat ring 12 surrounds the periphery of the needle base 2, and the outer wall of the connecting seat ring 12 is provided with external threads 13; needle handle 51's inside is provided with needle handle chamber 511, the mounting hole 512 that is linked together with needle handle chamber 511 is seted up to needle handle 51's one end, be provided with the internal thread 14 with external screw thread 13 looks adaptation on the pore wall of mounting hole 512, syringe needle 52 fixed mounting is at needle handle 51's the other end, first pinpoint 521 extends to in the needle handle chamber 511, the chamfer has been fallen between the terminal surface of needle handle chamber 511's the other end and the inner wall of needle handle chamber 511, when needle handle 51 is installed on needle file 2, can rely on the inclination extrusion silica gel cover 4 of self, thereby make the inseparabler of the lateral wall laminating of closed seam 41 and syringe needle 52, can not cause blood to leak outward during the blood sampling.
To sum up, the utility model discloses a be provided with the silica gel cover on the needle file of cylinder, be provided with the closed seam of normally closed in the silica gel cover, when the syringe needle subassembly is installed on the cylinder, the syringe needle can pass the closed seam to strut it, blood sampling with the blood sampling chamber intercommunication of cylinder, after taking a blood sample, after dismantling the syringe needle subassembly, the closed seam can be closed rapidly, seal the blood sample in the blood sampling chamber, thereby played and put the effect of polluting, and the operation process is simple safe easily to control, after the syringe needle subassembly is discarded, the inspection personnel also need not worry the danger of being stabbed by the syringe needle; the blood taking needle is simple in integral structure, low in cost and easy to popularize.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. An anti-contamination type blood lancet, characterized by comprising:
the blood sampling device comprises a needle cylinder (1), wherein a blood sampling cavity (11) is formed in the needle cylinder (1), a needle base (2) is convexly arranged at one end of the needle cylinder (1), a seat hole (21) communicated with the blood sampling cavity (11) is formed in the needle base (2), and a piston assembly (3) is arranged in the blood sampling cavity (11);
the silicon rubber sleeve (4) is sleeved on the needle seat (2), a closed seam (41) is arranged in the silicon rubber sleeve (4), and the closed seam (41) corresponds to the seat hole (21);
the needle assembly (5) comprises a needle handle (51) and a needle head (52), the needle handle (51) is detachably connected with one end of the needle cylinder (1) and covers the outer side of the silica gel sleeve (4), the needle head (52) is provided with a first needle point (521) and a second needle point (522) which are far away from each other, the first needle point (521) penetrates through the closing seam (41) and extends into the seat hole (21), the second needle point (522) extends to the outside of the needle handle (51), a blood channel (523) is arranged in the needle head (52), and the first needle point (521) is communicated with the second needle point (522) through the blood channel (523);
wherein, when the first needlepoint (521) is pulled out from the closing seam (41), the closing seam (41) can be automatically closed.
2. The contamination-proof type blood taking needle according to claim 1, wherein one end of the needle cylinder (1) is further provided with a connecting seat ring (12), the connecting seat ring (12) is arranged around the periphery of the needle seat (2), and the outer wall of the connecting seat ring (12) is provided with an external thread (13).
3. The contamination-proof type blood taking needle according to claim 2, wherein a needle handle cavity (511) is arranged inside the needle handle (51), a mounting hole (512) communicated with the needle handle cavity (511) is arranged at one end of the needle handle (51), and an internal thread (14) matched with the external thread (13) is arranged on the wall of the mounting hole (512).
4. The contamination resistant lancet according to claim 3, wherein the needle (52) is fixedly arranged at the other end of the needle handle (51), and the first needle tip (521) extends into the needle handle cavity (511).
5. The contamination-resistant blood lancet according to claim 4, wherein a chamfer is chamfered between an end surface of the other end of the handle cavity (511) and an inner wall of the handle cavity (511).
6. The anti-pollution blood taking needle according to claim 1, wherein a silica gel trepan (42) is opened at one end of the silica gel sleeve (4), one end of the silica gel trepan (42) extends outwards from one end of the silica gel sleeve (4) to form an orifice (43), the other end of the silica gel sleeve (4) is arranged at the closed seam (41) and extends to the other end of the silica gel trepan (42), and the inner diameter of the silica gel trepan (42) is matched with the outer diameter of the needle seat (2).
7. The contamination-proof type blood taking needle according to claim 6, wherein an annular groove (44) is opened in the wall of the silica gel trepanning (42), and a clamping ring (21) corresponding to the annular groove (44) is convexly arranged on the periphery of the needle seat (2).
8. An antipollution blood lancet according to claim 7, characterised in that the silicone cover (4) is provided with a grip groove (45) around its outer circumference.
9. The contamination-resistant lancet according to claim 8, wherein the cross-section of the holding groove (45) is a circular arc structure.
10. The contamination-resistant lancet according to claim 1, characterized in that the piston assembly (3) comprises:
a piston (31) slidably disposed in the blood collection chamber (11);
a push rod (32) having one end connected to the piston (11), the other end of the push rod (32) extending outward from the other end of the cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120929641.0U CN214907006U (en) | 2021-04-30 | 2021-04-30 | Anti-pollution blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120929641.0U CN214907006U (en) | 2021-04-30 | 2021-04-30 | Anti-pollution blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214907006U true CN214907006U (en) | 2021-11-30 |
Family
ID=79065868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120929641.0U Expired - Fee Related CN214907006U (en) | 2021-04-30 | 2021-04-30 | Anti-pollution blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214907006U (en) |
-
2021
- 2021-04-30 CN CN202120929641.0U patent/CN214907006U/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 |
Granted publication date: 20211130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |