CN212574874U - Anti-backflow blood taking needle - Google Patents
Anti-backflow blood taking needle Download PDFInfo
- Publication number
- CN212574874U CN212574874U CN202020421879.8U CN202020421879U CN212574874U CN 212574874 U CN212574874 U CN 212574874U CN 202020421879 U CN202020421879 U CN 202020421879U CN 212574874 U CN212574874 U CN 212574874U
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- sleeve
- needle
- blood
- pipe
- movable frame
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Abstract
The utility model discloses an anti-reflux blood taking needle, which comprises a sleeve, wherein the left end of the sleeve is connected with a bolt connecting ring, a needle tube seat is embedded in the left side of the sleeve, a needle tube is installed at the right end of the needle tube seat, a movable frame is arranged inside the connecting ring, a groove is arranged inside the connecting ring, a fixed block is connected to the top of the movable frame in a bolt manner, and a blood taking catheter is arranged on the left side of the movable frame; the device is through having designed the go-between, the movable frame, the blood sampling pipe, pipe joint and hemostatic cotton, make the device have easy operation, the medical personnel of being convenient for use, and can avoid the blood outflow, thereby increase the advantage of blood taking needle security, it can take place the outflow to have solved the blood that does not flow in the blood taking needle and advance the test tube, and the blood taking needle stabs medical personnel easily, thereby lead to patient's blood to be wasted, there is the problem of great potential safety hazard, thereby the security and the practicality of blood taking needle have been increased, convenience has been brought for medical personnel.
Description
Technical Field
The utility model relates to the technical field of medical supplies, in particular to an anti-adversity blood taking needle.
Background
The blood taking needle is an instrument for collecting blood samples in the medical examination process and consists of 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 way, 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.
The blood taking needle disclosed in the patent CN109199405A is simple in structure, blood easily flows out when the blood taking operation is carried out, and the blood taking needle easily stabs medical staff, so that the medical staff are easily infected by the blood, and great potential safety hazards exist. Therefore, the anti-reflux blood taking needle which is simple to operate, convenient to use by medical staff and capable of avoiding blood outflow is provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a blood taking needle against adversity flow to the current blood taking needle that proposes in solving above-mentioned background art does not flow in the blood taking needle in the use and can take place to flow outward, and the blood taking needle stabs medical personnel easily, thereby leads to medical personnel to be infected by blood easily and has the problem of great potential safety hazard.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an anti adverse current blood taking needle, includes the sleeve pipe, sheathed tube left end bolt joint ring, the sheathed tube left side is inlayed and is equipped with the needle tube seat, the needle tubing is installed to the right-hand member of needle tube seat, the inside of go-between is provided with the movable frame, the recess has been seted up to the inside of go-between, the top bolt of movable frame has the fixed block, the left side of movable frame is provided with the blood sampling pipe, the blood sampling pipe runs through to the right side of movable frame, the pipe connection is installed to the right-hand member of blood sampling pipe, the surface cover of blood sampling pipe is equipped with compression spring, compression spring is located between movable frame and the pipe connection, the left side bolt joint of sleeve pipe inner chamber has fixed frame, and fixed frame is located the below of needle tube seat, the inside of fixed frame is provided with hemostatic cotton.
Preferably, an inner pipe is arranged inside the sleeve, the diameter of the inner pipe is smaller than the inner diameter of the sleeve, and the inner pipe is in sliding connection with the sleeve.
Preferably, the upper side and the lower side of the sleeve are both provided with a strip-shaped groove, the upper side and the lower side of the inner pipe are both bolted with sliding blocks, and the sliding blocks are located inside the strip-shaped grooves and are in sliding connection with each other.
Preferably, the surface of the sleeve is connected with a fixing ring in a sliding manner, the surface of the fixing ring is provided with an anti-slip strip, and the inner wall of the fixing ring is bolted with the sliding block.
Preferably, a cylinder is embedded in the left side of the inner tube, the needle tube is located inside the cylinder and is in sliding connection with the cylinder, and a round hole with the diameter larger than that of the needle tube is formed in the right side of the inner tube.
Preferably, the groove is arc-shaped, the fixing block is located inside the groove, and the fixing block is connected with the groove in a sliding mode.
Preferably, the left end and the right end of the compression spring are respectively bolted with the movable frame and the catheter connector, and the catheter connector is matched with the needle tube seat for use.
Preferably, the through hole is positioned at the bottom of the needle tube seat, and the inner diameter of the through hole is the same as the diameter of the needle tube seat.
Compared with the prior art, the utility model provides an anti adversity blood taking needle possesses following beneficial effect:
through having designed go-between, adjustable frame, blood sampling pipe, pipe joint and hemostatic cotton for the device has easy operation, the medical personnel of being convenient for uses, and can avoid the blood outflow, has solved and has not flowed into the problem that the blood in the test tube can take place to flow outward, the blood sampling needle stabs medical personnel easily and has great potential safety hazard, thereby has increased the security and the practicality of blood sampling needle, has brought the facility for medical personnel.
Drawings
FIG. 1 is a schematic sectional view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a left sectional view of the partial structure of the present invention;
fig. 4 is a perspective view of the present invention.
In the figure: 1. a sleeve; 2. a connecting ring; 3. a needle tube base; 4. a needle tube; 5. a movable frame; 6. a groove; 7. a fixed block; 8. a blood collection catheter; 9. a catheter adapter; 10. a compression spring; 11. a fixing frame; 12. hemostatic cotton; 13. a through hole; 14. an inner tube; 15. a strip-shaped groove; 16. a slider; 17. a fixing ring; 18. a cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, the utility model provides a technical solution:
an anti-reflux blood taking needle comprises a sleeve 1, a left end of the sleeve 1 is connected with a connecting ring 2 in a bolted mode, a needle tube seat 3 is embedded in the left side of the sleeve 1, a needle tube 4 is installed at the right end of the needle tube seat 3, a movable frame 5 is arranged inside the connecting ring 2, a groove 6 is formed inside the connecting ring 2, a fixed block 7 is connected to the top of the movable frame 5 in a bolted mode, a blood taking catheter 8 is arranged on the left side of the movable frame 5, the blood taking catheter 8 penetrates through the right side of the movable frame 5, a catheter connector 9 is installed at the right end of the blood taking catheter 8, a compression spring 10 is sleeved on the surface of the blood taking catheter 8, the compression spring 10 is located between the movable frame 5 and the catheter connector 9, a fixed frame 11 is connected to the left side of an inner cavity of the sleeve 1 in a bolted mode, the fixed frame 11 is located below the needle, through having designed go-between 2, movable frame 5, blood sampling pipe 8, pipe joint 9 and hemostatic cotton 12, make the device have easy operation, the medical personnel of being convenient for use, and can avoid the blood outflow, thereby increase the advantage of blood sampling needle security, it can take place the outflow to have solved the blood that does not flow in the blood sampling needle and advance the test tube, and the blood sampling needle stabs medical personnel easily, thereby lead to patient's blood to be wasted, there is the problem of great potential safety hazard, thereby the security and the practicality of blood sampling needle have been increased, convenience has been brought for medical personnel.
Referring to fig. 1 and 4, in order to prevent the medical staff from being punctured by the needle, the inside of the cannula 1 is provided with an inner tube 14, the diameter of the inner tube 14 is smaller than the inner diameter of the cannula 1, and the inner tube 14 is connected with the cannula 1 in a sliding manner.
Referring to fig. 1 and 4, in order to increase the motion stability of the inner tube 14 and prevent the needle tube 4 from bending and deforming, the upper and lower sides of the sleeve 1 are both provided with strip-shaped grooves 15, the upper and lower sides of the inner tube 14 are both bolted with sliders 16, and the sliders 16 are located inside the strip-shaped grooves 15 and are connected in a sliding manner.
Referring to fig. 1 and 4, in order to facilitate the medical staff to move the inner tube 14 so as to hide the needle tube 4 in the inner cavity of the inner tube 14, the surface of the cannula 1 is slidably connected with a fixing ring 17, the surface of the fixing ring 17 is provided with an anti-slip strip, and the inner wall of the fixing ring 17 is bolted with the sliding block 16.
Referring to fig. 1, in order to facilitate the normal blood sampling operation, a cylinder 18 is embedded in the left side of the inner tube 14, the needle tube 4 is located inside the cylinder 18 and slidably connected with the cylinder 18, and a circular hole with a diameter larger than that of the needle tube 4 is formed in the right side of the inner tube 14.
Referring to fig. 1 and 3, in order to rotate the movable frame 5 and further rotate the conduit joint 9, the groove 6 is arc-shaped, the fixing block 7 is located inside the groove 6, and the fixing block 7 is slidably connected with the groove 6.
Referring to fig. 1 and 2, in order to facilitate the blood drawn from the needle tube 4 to enter the blood collection tube 8, the left and right ends of the compression spring 10 are respectively bolted to the movable frame 5 and the tube connector 9, and the tube connector 9 is used in cooperation with the needle tube holder 3.
Referring to fig. 1 and 3, in order to facilitate the combination of the catheter adapter 9 and the through hole 13 and prevent blood from spilling, the through hole 13 is located at the bottom of the needle holder 3, and the inner diameter of the through hole 13 is the same as the diameter of the needle holder 3.
The working principle is as follows: when the blood sampling device is used, firstly, the movable frame 5 is rotated, the fixed block 7 is rotated to the top of the groove 6, so that the catheter connector 9 is combined with the needle tube seat 3, then, blood sampling work is performed on a patient through the needle tube 4, blood of the patient is sucked by the needle tube 4 under the action of negative pressure and enters the blood sampling catheter through the catheter connector 9 and the blood sampling catheter 8, after the blood sampling work is completed, the movable frame 5 is rotated, so that the fixed block 7 is rotated to the bottom of the groove 6, at the moment, the catheter connector 9 is combined with the through hole 13, residual blood in the blood sampling catheter 8 is absorbed by the hemostatic cotton 12, so that discomfort caused by blood drops falling on a sickbed and the patient is avoided, the fixing ring 17 is pushed to move along the direction of the strip-shaped groove 15, the fixing ring 17 drives the inner tube 14 to extend out of the sleeve 1 through the.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An anti-reflux blood taking needle comprises a sleeve (1), and is characterized in that: the left end of sleeve pipe (1) is bolted and connected ring (2), the left side of sleeve pipe (1) is inlayed and is equipped with needle tube seat (3), needle tubing (4) are installed to the right-hand member of needle tube seat (3), the inside of go-between (2) is provided with movable frame (5), recess (6) are seted up to the inside of go-between (2), the top of movable frame (5) is bolted and is had fixed block (7), the left side of movable frame (5) is provided with blood sampling pipe (8), blood sampling pipe (8) run through to the right side of movable frame (5), pipe connector (9) is installed to the right-hand member of blood sampling pipe (8), the surface cover of blood sampling pipe (8) is equipped with compression spring (10), compression spring (10) are located between movable frame (5) and pipe connector (9), the left side of sleeve pipe (1) inner chamber is bolted and is had fixed frame (11, and the fixing frame (11) is positioned below the needle tube seat (3), hemostatic cotton (12) is arranged inside the fixing frame (11), a through hole (13) is formed in the surface of the sleeve (1), and the through hole (13) is communicated with the fixing frame (11).
2. An anti-reflux lancet according to claim 1, wherein: the inner pipe (14) is arranged in the sleeve (1), the diameter of the inner pipe (14) is smaller than the inner diameter of the sleeve (1), and the inner pipe (14) is in sliding connection with the sleeve (1).
3. An anti-reflux lancet according to claim 2, wherein: strip-shaped grooves (15) are formed in the upper side and the lower side of the sleeve (1), sliding blocks (16) are bolted to the upper side and the lower side of the inner pipe (14), and the sliding blocks (16) are located inside the strip-shaped grooves (15) and are in sliding connection with each other.
4. An anti-reflux lancet according to claim 3, wherein: the surface sliding connection of sleeve pipe (1) has solid fixed ring (17), the surface of solid fixed ring (17) is provided with the antislip strip, and the bolt connection between the inner wall of solid fixed ring (17) and slider (16).
5. An anti-reflux lancet according to claim 2, wherein: a cylinder (18) is embedded in the left side of the inner tube (14), the needle tube (4) is located in the cylinder (18) and is in sliding connection with the cylinder (18), and a round hole with the diameter larger than that of the needle tube (4) is formed in the right side of the inner tube (14).
6. An anti-reflux lancet according to claim 1, wherein: recess (6) are circular-arc, fixed block (7) are located the inside of recess (6), and sliding connection between fixed block (7) and recess (6).
7. An anti-reflux lancet according to claim 1, wherein: the left end and the right end of the compression spring (10) are respectively bolted with the movable frame (5) and the catheter connector (9), and the catheter connector (9) is matched with the needle tube seat (3) for use.
8. An anti-reflux lancet according to claim 1, wherein: the through hole (13) is positioned at the bottom of the needle tube seat (3), and the inner diameter of the through hole (13) is the same as the diameter of the needle tube seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421879.8U CN212574874U (en) | 2020-03-28 | 2020-03-28 | Anti-backflow blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421879.8U CN212574874U (en) | 2020-03-28 | 2020-03-28 | Anti-backflow blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212574874U true CN212574874U (en) | 2021-02-23 |
Family
ID=74656058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020421879.8U Expired - Fee Related CN212574874U (en) | 2020-03-28 | 2020-03-28 | Anti-backflow blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212574874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113080953A (en) * | 2021-04-02 | 2021-07-09 | 江苏大学附属医院 | Surface self-cleaning multifunctional blood taking needle |
-
2020
- 2020-03-28 CN CN202020421879.8U patent/CN212574874U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113080953A (en) * | 2021-04-02 | 2021-07-09 | 江苏大学附属医院 | Surface self-cleaning multifunctional blood taking needle |
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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: 20210223 |