CN214128557U - Adjustable disposable blood taking needle - Google Patents
Adjustable disposable blood taking needle Download PDFInfo
- Publication number
- CN214128557U CN214128557U CN202022367810.4U CN202022367810U CN214128557U CN 214128557 U CN214128557 U CN 214128557U CN 202022367810 U CN202022367810 U CN 202022367810U CN 214128557 U CN214128557 U CN 214128557U
- Authority
- CN
- China
- Prior art keywords
- sliding seat
- cavity casing
- bolt
- fixing base
- blood taking
- 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 33
- 210000004369 blood Anatomy 0.000 title claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 12
- 230000007847 structural defect Effects 0.000 abstract description 2
- 125000003003 spiro group Chemical group 0.000 abstract 1
- 239000004576 sand Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 238000010241 blood sampling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model belongs to the technical field of medical instrument, concretely relates to disposable blood taking needle with adjustable, including cavity casing and the lid of demountable installation at the cavity casing lower extreme, fixed mounting has the fixing base in the cavity casing, it has the sliding seat still to slidable mounting in the cavity casing, install a plurality of compression spring between sliding seat and the fixing base, fixed mounting has the puncture needle on the fixing base, the through-hole has been seted up on the sliding seat, the puncture needle is worn to establish in the through-hole, still be equipped with the sloping block of outer low interior height on the sliding seat, set up threaded hole on the cavity casing, the spiro union has the bolt in the screw hole, bolt inner is located between sloping block and the fixing base. The purpose is as follows: the problem of the blood taking needle that can not adjust the blood taking needle to the crowd of difference that current blood taking needle structural defect leads to for the blood taking needle can insert the degree of depth of difference is solved.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to disposable blood taking needle with adjustable.
Background
A blood taking needle for collecting blood samples in the medical examination process comprises a needle head and a needle rod, wherein the needle head is arranged at the head part of the needle rod, a protective sleeve is connected on the needle rod in a sliding manner, a return spring is arranged between the protective sleeve and the needle rod, and the initial position of the protective sleeve is positioned at the head parts of the needle head and the needle rod.
When an operator holds the needle tube to press the head of the blood taking needle on the limb of a patient, the sheath retracts under the elastic action of the skin, so that the needle head protrudes and pierces the skin to cause minimal trauma, and after the blood taking needle is pulled out, the sheath resets again under the action of the return spring to cover the needle head so as to prevent the needle head from being exposed and polluted or accidentally stabbing the human body.
However, the depth of the existing blood taking needle which can penetrate into the limb of a patient is fixed, and the blood taking needle cannot be adjusted for different people, so that the blood taking needle can be inserted into different depths.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: aims to provide a disposable blood taking needle with adjustable for solve the problem that the blood taking needle can not be adjusted for different people caused by the structural defects of the existing blood taking needle, so that the blood taking needle can be inserted into different depths.
In order to realize the technical purpose, the utility model discloses a technical scheme as follows:
the utility model provides a disposable blood taking needle with adjustable, includes cavity casing and the lid of demountable installation at cavity casing lower extreme, fixed mounting has the fixing base in the cavity casing, still slidable mounting has the sliding seat in the cavity casing, install a plurality of compression spring between sliding seat and the fixing base, fixed mounting has the puncture needle on the fixing base, the through-hole has been seted up on the sliding seat, the puncture needle is worn to establish in the through-hole, still be equipped with the sloping block of outer low interior height on the sliding seat, set up threaded hole on the cavity casing, the threaded hole internal thread is threaded and is connected the bolt, bolt inner is located between sloping block and the fixing base.
Further inject, the bar groove has transversely been seted up to sliding seat lower extreme both sides lateral wall, cavity casing lower extreme inner wall is equipped with the bar sand grip, the bar sand grip is located the bar groove. Such structural design, through the mutual matching of bar sand grip and bar recess, prescribe a limit to the biggest descending position of sliding seat, avoid the sliding seat under compression spring's effect, excessive downward displacement, and then break away from the cavity casing.
Further inject, fixed mounting has many guide posts on the fixing base, the compression spring cover is established on the guide post, a plurality of guiding holes have been seted up on the sliding seat, the guide post lower extreme is worn to establish in the guiding hole. Such structural design through mutually supporting of guide post and guiding hole, plays the guide effect to the moving direction of sliding seat, simultaneously, overlaps the compression spring cover and establishes on the guide post, can avoid compression spring to appear the problem that the axis buckles in the use.
Further inject, the bar groove has been seted up to the bolt outer wall axial, the bar inslot is seted up and is had the scale. Such structural design through the scale, carries out the accuracy to the degree of depth that the bolt stretched into the cavity casing and instructs for it is more convenient to adjust.
Further inject, the bolt is in the cavity casing outside fixed mounting round platform, round platform free end integrated into one piece has the riser. Such structural design, when rotating the bolt, the accessible drives the bolt rotation to the wrench movement of riser to adjusting bolt stretches into the degree of depth of cavity casing, and then adjusts the maximum distance of sliding seat rebound, and it is more convenient to use.
Further inject, the diameter size of round platform is greater than the diameter size of bolt, the round platform is close to cavity casing one side and has seted up first annular groove in the bolt outside, first annular groove inside callipers is equipped with the sealing ring, the second annular groove has been seted up to cavity casing outer wall, the sealing ring is close to cavity casing one end and is located the second annular groove. Such structural design when the blood taking needle does not use, can screw up the bolt for the round platform hugs closely on cavity casing outer wall, makes the sealing ring get into second annular groove, and then forms the shutoff through sealing ring and round platform to the screwed hole, avoids outside bacterium to get into inside the cavity casing from screwed hole and bar groove, forms the pollution to the puncture needle.
Adopt above-mentioned technical scheme's utility model, have following advantage:
1. the maximum distance of the sliding seat moving upwards relative to the puncture needle is adjusted through the rotation of the bolt, namely the maximum distance of the puncture needle moving downwards relative to the sliding seat and the skin of a patient in the using process is adjusted, so that the purpose of adjusting the depth size of the puncture needle penetrating into the skin of the patient is achieved, and the purpose that the blood taking needle can be inserted into different depths is achieved;
2. through mutually supporting of round platform, first annular groove, sealing ring and second annular groove, form the shutoff to the screw hole of seting up on the hollow shell, avoid external bacterium to get into inside the hollow shell from screw hole and bar groove, form the pollution to the puncture needle.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic view of an embodiment of an adjustable disposable blood taking needle of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of an adjustable disposable blood lancet of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the sliding seat portion of an embodiment of an adjustable disposable blood lancet of the present invention;
FIG. 5 is a schematic view of a bolt portion of an embodiment of an adjustable disposable blood lancet of the present invention;
the main element symbols are as follows:
a hollow shell 1,
A fixed seat 2, a puncture needle 21,
A sliding seat 3, a through hole 31, an inclined block 32, a strip-shaped groove 33,
A compression spring 4, a guide post 41, a guide hole 42,
The box cover 5, the bolt 6, the strip-shaped groove 60, the circular truncated cone 61, the vertical block 62, the sealing ring 63 and the first annular groove 631.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 5, the adjustable disposable blood taking needle of the present embodiment includes a hollow casing 1 and a box cover 5 detachably mounted at a lower end of the hollow casing 1, a fixing seat 2 is fixedly mounted in the hollow casing 1, a sliding seat 3 is further slidably mounted in the hollow casing 1, a plurality of compression springs 4 are mounted between the sliding seat 3 and the fixing seat 2, a puncture needle 21 is fixedly mounted on the fixing seat 2, a through hole 31 is formed in the sliding seat 3, the puncture needle 21 is inserted into the through hole 31, an inclined block 32 with a low outer portion and a high inner portion is further disposed on the sliding seat 3, a threaded hole is formed in the hollow casing 1, a bolt 6 is screwed in the threaded hole, and the inner end of the bolt 6 is located between the inclined block 32 and the fixing seat 2.
The lateral wall of 3 lower extreme both sides of sliding seat has transversely seted up bar recess 33, and 1 lower extreme inner wall of cavity casing is equipped with the bar sand grip, and the bar sand grip is located bar recess 33. Through the mutual matching of bar sand grip and bar recess 33, inject the biggest descending position of sliding seat 3, avoid sliding seat 3 under compression spring 4's effect, excessive downward displacement, and then break away from hollow shell 1.
Fixed mounting has many guide posts 41 on the fixing base 2, and compression spring 4 cover is established on guide post 41, has seted up a plurality of guiding holes 42 on the sliding seat 3, and guide post 41 lower extreme is worn to establish in guiding hole 42. Through mutually supporting of guide post 41 and guiding hole 42, play the guide effect to the moving direction of sliding seat 3, simultaneously, establish compression spring 4 cover on guide post 41, can avoid compression spring 4 to appear the problem that the axis is buckled in the use.
A strip-shaped groove 60 is axially formed in the outer wall of the bolt 6, and a graduated scale is arranged in the strip-shaped groove 60. Through the scale, carry out the accuracy to the degree of depth that bolt 6 stretched into cavity casing 1 and instruct for it is more convenient to adjust.
The bolt 6 is fixedly provided with a circular truncated cone 61 on the outer side of the hollow shell 1, and a vertical block 62 is integrally formed at the free end of the circular truncated cone 61. When rotating bolt 6, the accessible drives bolt 6 rotatory to the wrench movement of riser 62 to adjusting bolt 6 stretches into the degree of depth of cavity casing 1, and then adjusts the maximum distance that sliding seat 3 upwards removed, and it is more convenient to use.
The diameter size of round platform 61 is greater than the diameter size of bolt 6, and first annular groove 631 has been seted up in the bolt 6 outside to round platform 61 near 1 one side of cavity casing, and first annular groove 631 inside callipers is equipped with sealing ring 63, and second annular groove has been seted up to 1 outer wall of cavity casing, and sealing ring 63 is close to 1 one end of cavity casing and is located the second annular groove. When the blood taking needle is not used, the bolt 6 can be screwed down, the circular truncated cone 61 is tightly attached to the outer wall of the hollow shell 1, the sealing ring 63 enters the second annular groove, the sealing ring 63 and the circular truncated cone 61 are used for blocking the threaded hole, and external bacteria are prevented from entering the hollow shell 1 from the threaded hole and the strip-shaped groove 60 to pollute the puncture needle 21.
In the embodiment, when the blood sampling box is used, the skin thickness of a patient is measured, if the skin thickness of the patient is larger, the bolt 6 is rotated, so that the bolt 6 moves towards the outside of the hollow shell 1, the depth dimension of the bolt 6 extending into the hollow shell 1 is reduced, then the box cover 5 is taken down, and blood sampling is performed on the patient by using blood sampling;
during blood collection, medical personnel grasp hollow shell 1 with the hand, place sliding seat 3 on patient's skin, then press hollow shell 1 downwards, utilize the reaction force that patient's hand provided sliding seat 3, drive compression spring 4 shrink, and then drive puncture needle 21 and stretch out through-hole 31, puncture patient's skin, until sloping block 32 top is leaned on the inner of bolt 6, at this moment, extract the blood taking needle again, sliding seat 3 is automatic re-setting under compression spring 4 effect, cover again and establish on puncture needle 21, finally, cover lid 5 again, abandon the blood taking needle can.
The above details the disposable blood taking needle with adjustable provided by the utility model are introduced. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. An adjustable disposable blood taking needle, which is characterized in that: including cavity casing (1) and demountable installation lid (5) at cavity casing (1) lower extreme, fixed mounting has fixing base (2) in cavity casing (1), it has sliding seat (3) to go back slidable mounting in cavity casing (1), install a plurality of compression spring (4) between sliding seat (3) and fixing base (2), fixed mounting has puncture needle (21) on fixing base (2), set up through-hole (31) on sliding seat (3), puncture needle (21) are worn to establish in through-hole (31), still be equipped with outer low interior high sloping block (32) on sliding seat (3), set up threaded hole on cavity casing (1), threaded hole internal thread has bolt (6), bolt (6) inner is located between sloping block (32) and fixing base (2).
2. An adjustable disposable lancet according to claim 1, wherein: bar-shaped grooves (33) are transversely formed in the side walls of the two sides of the lower end of the sliding seat (3), bar-shaped convex strips are arranged on the inner wall of the lower end of the hollow shell (1), and the bar-shaped convex strips are located in the bar-shaped grooves (33).
3. An adjustable disposable lancet according to claim 1, wherein: fixed mounting has many guide posts (41) on fixing base (2), compression spring (4) cover is established on guide post (41), a plurality of guiding holes (42) have been seted up on sliding seat (3), guide post (41) lower extreme is worn to establish in guiding hole (42).
4. An adjustable disposable lancet according to claim 1, wherein: a strip-shaped groove (60) is axially formed in the outer wall of the bolt (6), and a graduated scale is arranged in the strip-shaped groove (60).
5. An adjustable disposable lancet according to claim 4, wherein: the bolt (6) is fixedly provided with a circular truncated cone (61) on the outer side of the hollow shell (1), and a vertical block (62) is integrally formed at the free end of the circular truncated cone (61).
6. An adjustable disposable lancet according to claim 5, wherein: the diameter size of round platform (61) is greater than the diameter size of bolt (6), first annular groove (631) have been seted up in bolt (6) outside near cavity casing (1) one side in round platform (61), first annular groove (631) inside callipers is equipped with sealing ring (63), the second annular groove has been seted up to cavity casing (1) outer wall, sealing ring (63) are close to cavity casing (1) one end and are located the second annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022367810.4U CN214128557U (en) | 2020-10-22 | 2020-10-22 | Adjustable disposable blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022367810.4U CN214128557U (en) | 2020-10-22 | 2020-10-22 | Adjustable disposable blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214128557U true CN214128557U (en) | 2021-09-07 |
Family
ID=77560960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022367810.4U Expired - Fee Related CN214128557U (en) | 2020-10-22 | 2020-10-22 | Adjustable disposable blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214128557U (en) |
-
2020
- 2020-10-22 CN CN202022367810.4U patent/CN214128557U/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: 20210907 |