CN216702543U - Infection-preventing and puncture-preventing vacuum blood sampling device - Google Patents
Infection-preventing and puncture-preventing vacuum blood sampling device Download PDFInfo
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- CN216702543U CN216702543U CN202122287868.2U CN202122287868U CN216702543U CN 216702543 U CN216702543 U CN 216702543U CN 202122287868 U CN202122287868 U CN 202122287868U CN 216702543 U CN216702543 U CN 216702543U
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Abstract
The utility model provides an infection-preventing and puncture-preventing vacuum blood sampling device, which comprises a puncture needle, a connecting cylinder connected with the puncture needle through a connecting pipe, and a vacuum pipe movably arranged in the connecting cylinder, when in use, firstly, after the medical staff finishes the disinfection work, the puncture needle is punctured into the blood vessel of the patient, then, the two groups of trigger mechanisms move simultaneously to release the constraint on the elastic potential energy stored in the ejection mechanism, thereby, the ejection mechanism releases elastic potential energy and drives the vacuum tube to do linear motion towards the contact pin, so that the contact pin is inserted into the vacuum tube, then, blood enters the vacuum tube through the puncture needle, the connecting tube and the cannula, finally, the puncture needle is pulled out of the body of the patient, and the vacuum tube is screwed out of the connecting tube, so that the blood sampling function of the device is realized.
Description
Technical Field
The utility model belongs to medical consumables, and particularly relates to an infection-preventing and needle-stick-injury-preventing vacuum blood sampling device.
Background
The main components of blood are plasma, blood cells, genetic material (chromosomes and genes), a special connective tissue, the tissue layer in the living system. Blood contains various nutrients such as inorganic salts, oxygen, cellular metabolites, hormones, enzymes, antibodies, etc., and has effects of nourishing tissues, regulating organ activities, and protecting against harmful substances. Blood stores human health information.
In the treatment of all kinds of diseases, blood sampling chemical examination is a very common diagnosis mode, gathers the chemical examination to patient's blood through using blood sampling device, can make things convenient for medical personnel to diagnose the state of an illness better, and the corresponding vacuum blood sampling device that needs to use generally includes the vacuum tube that is used for collecting blood and the blood taking needle component that is used for taking a blood sample.
The existing blood sampling device needs medical care personnel to pull out the contact pin in the vacuum tube after blood sampling is finished in the use of blood sampling work, and in the pulling-out process, because the force of the medical care personnel is difficult to control, and residual blood can be stored on the contact pin, when the residual blood splashes to the medical care personnel or other patients or family members of the patients, cross infection can be caused, so that blood-borne pathogens are infected to other people to cause other people to be sick, and therefore, the safety in the ideal situation is not achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an infection-preventing and needle-stick-injury-preventing vacuum blood sampling device, and aims to solve the problem that cross infection is easily caused when a traditional blood sampling device is used.
The utility model is realized in such a way that the infection-preventing and needle-prick-preventing vacuum blood sampling device comprises a puncture needle, a connecting cylinder connected with the puncture needle through a connecting pipe, and a vacuum pipe movably arranged in the connecting cylinder, wherein a contact pin matched with the vacuum pipe is fixedly arranged on the bottom wall of the connecting cylinder, the contact pin is communicated with the connecting pipe, and the central axes of the vacuum pipe, the connecting cylinder and the contact pin are superposed;
the vacuum tube is movably arranged in the connecting cylinder through an ejection mechanism, the vacuum tube is in threaded connection with the ejection mechanism, and the ejection mechanism stores elastic potential energy and is used for driving the vacuum tube to do linear motion towards the contact pin when releasing the elastic potential energy;
the outer wall of the connecting cylinder is also provided with two groups of trigger mechanisms, the two groups of trigger mechanisms are arranged on the outer wall of the connecting cylinder and connected with the vacuum tube and used for restraining the elastic potential energy stored by the ejection mechanism, when the trigger mechanisms move, the restraint on the elastic potential energy in the ejection mechanism is removed, and the vacuum tube moves towards the contact pin so that the contact pin enters the vacuum tube.
Furthermore, the ejection mechanism comprises a movable barrel which is arranged in the connecting barrel in a sliding mode through a guide structure, and a first spring which is used for connecting the movable barrel and the connecting barrel, wherein the first spring is in a stretching state and is overlapped with the central axis of the contact pin;
one end of the first spring is fixed with the end of the movable barrel, the other end of the first spring is fixed with the bottom wall of the connecting barrel, and the movable barrel is connected with the trigger mechanism.
Furthermore, the guide structure is provided with two groups in the connecting cylinder, and the two groups comprise a protruding block fixed on the outer wall of the movable cylinder and a limiting groove arranged on the inner wall of the connecting cylinder and matched with the protruding block.
Furthermore, the trigger mechanism comprises a sliding assembly arranged on the outer wall of the connecting cylinder and a limiting structure arranged between the connecting cylinder and the movable cylinder;
the limiting structure is arranged on the outer wall of the movable barrel and is movably arranged through a connecting column to form a limiting block in the connecting barrel, the connecting column is arranged on the connecting barrel in a sliding mode, and the connecting column is located one end, outside the connecting barrel, of the connecting barrel is provided with one fixing block connected with the sliding assembly.
Furthermore, the sliding assembly comprises a guide piece fixed on the outer wall of the connecting cylinder, a sliding block in sliding fit with the guide piece and a connecting rod for connecting the sliding block and the fixed block;
a sliding rod is further fixed on the side of the sliding block, and a sleeve is arranged in the guide piece and is in sliding fit with the sliding rod;
the sleeve pipe with the cover is equipped with the second spring that is in compression state on the periphery of slide bar, the one end of second spring with the slider is connected, the other end with the inner wall connection of guide.
Compared with the prior art, the utility model has the beneficial effects that:
when the medical needle is used, firstly, after the medical staff finishes the disinfection work, the puncture needle is punctured into the blood vessel of a patient, then, the two groups of trigger mechanisms move simultaneously to remove the restraint on the elastic potential energy stored in the ejection mechanism, so that the ejection mechanism releases the elastic potential energy and drives the vacuum tube to do linear motion towards the contact pin, and the contact pin is inserted into the vacuum tube; then, the blood enters the vacuum tube through the puncture needle, the connecting tube and the cannula, and finally, the puncture needle is pulled out of the body of the patient, and the vacuum tube is screwed out of the connecting tube; therefore, the portable blood sampling function of the device is realized, and due to the fact that the vacuum tube is in threaded connection with the ejection mechanism, after blood sampling is finished, the taking-out mode that the vacuum tube is pulled out is avoided, the problem of cross infection caused by blood splashing is effectively solved, the safety of blood sampling work is enhanced, and the portable blood sampling device is suitable for popularization and use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic diagram of the structure provided by the present invention.
Fig. 2 is a schematic structural diagram at a in fig. 1 according to the present invention.
Fig. 3 is an exploded view of the connector barrel and vacuum tube provided by the present invention.
Fig. 4 is a cross-sectional view provided by the present invention.
Fig. 5 is a front view provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In order to effectively explain embodiments of the present invention, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1-5, the present invention provides an infection-proof and needle-stick-injury-proof vacuum blood collection device to solve the problem that the conventional blood collection device is easy to cause cross infection during use.
Example one
The anti-infection and anti-needle-stick-injury vacuum blood sampling device comprises a puncture needle 1, a connecting cylinder 3 connected with the puncture needle 1 through a connecting pipe 2, and a vacuum pipe 4 movably arranged in the connecting cylinder 3, wherein a contact pin 5 matched with the vacuum pipe 4 is fixedly arranged on the bottom wall of the connecting cylinder 3, the contact pin 5 is communicated with the connecting pipe 2, and the central axes of the vacuum pipe 4, the connecting cylinder 3 and the contact pin 5 are superposed;
the vacuum tube 4 is movably arranged in the connecting cylinder 3 through an ejection mechanism, the vacuum tube 4 is in threaded connection with the ejection mechanism, and the ejection mechanism stores elastic potential energy and is used for driving the vacuum tube 4 to do linear motion towards the contact pin 5 when releasing the elastic potential energy;
the outer wall of the connecting cylinder 3 is further provided with two groups of trigger mechanisms, the two groups of trigger mechanisms are arranged on the outer wall of the connecting cylinder 3 and connected with the vacuum tube 4 and used for restraining elastic potential energy stored by the ejection mechanism, when the trigger mechanisms move, the restraint on the elastic potential energy in the ejection mechanism is removed, and the vacuum tube 4 moves towards the contact pin 5 so that the contact pin 5 can enter the vacuum tube 4.
It should be noted that a handle is further arranged at the joint of the puncture needle 1 and the connecting tube 2, so that the operation of medical staff in blood sampling work is facilitated;
of course, in actual use, the puncture needle 1 should be covered with a protective sleeve to prevent the puncture needle 1 from being contaminated.
In the embodiment of the utility model, when the medical needle is used, firstly, after the medical staff finishes the disinfection work, the puncture needle 1 is punctured into the blood vessel of a patient, then, the two groups of trigger mechanisms move simultaneously to release the constraint of the elastic potential energy stored in the ejection mechanism, so that the ejection mechanism releases the elastic potential energy and drives the vacuum tube 4 to do linear motion towards the contact pin 5, and the contact pin 5 is inserted into the vacuum tube 4;
then, the blood enters the vacuum tube 4 through the puncture needle 1, the connecting tube 2 and the cannula 5, finally, the puncture needle 1 is pulled out of the patient body, and then the vacuum tube 4 is screwed out of the connecting cylinder 3;
in conclusion, the portable blood sampling function of the device is realized, and the vacuum tube 4 is in threaded connection with the ejection mechanism, so that the taking-out mode that the vacuum tube 4 is pulled out is avoided after blood sampling is finished, the problem of cross infection caused by blood splashing is effectively prevented, the safety of blood sampling work is enhanced, and the device is suitable for popularization and use.
Example two
The ejection mechanism comprises a movable barrel 7 arranged in the connecting barrel 3 in a sliding mode through a guide structure and a first spring 6 for connecting the movable barrel 7 and the connecting barrel 3, wherein the first spring 6 is in a stretching state and is overlapped with the central axis of the contact pin 5;
one end of the first spring 6 is fixed with the end part of the movable cylinder 7, the other end of the first spring is fixed with the bottom wall of the connecting cylinder 3, and the movable cylinder 7 is connected with the trigger mechanism;
the guide structure is in be provided with two sets ofly in the connecting cylinder 3, including fixing protruding piece 8 on the 7 outer walls of a removal section of thick bamboo and set up on the inner wall of connecting cylinder 3 and the spacing groove 9 of protruding piece 8 adaptation.
Note that the vacuum tube 4 is screwed to the connecting cylinder 7 with their central axes coinciding.
The utility model discloses in the embodiment, work as the trigger mechanism motion is right removed remove a section of thick bamboo 7 spacing back, first spring 7 is because elastic response, and makes a section of thick bamboo 7 drive vacuum tube 4 and move towards contact pin 5, and finally, contact pin 5 passes the tip of a section of thick bamboo 7 and vacuum tube 4, gets into the inside to vacuum tube 7 for whole blood sampling passageway switches on, and blood is sucked in vacuum tube 4 gradually.
EXAMPLE III
The trigger mechanism comprises a sliding assembly arranged on the outer wall of the connecting cylinder 3 and a limiting structure arranged between the connecting cylinder 3 and the movable cylinder 7;
the limiting structure comprises a fixing block 10 arranged on the outer wall of the moving cylinder 7 and a limiting block 11 movably arranged in the connecting cylinder 3 through a connecting column 12, the connecting column 12 is arranged on the connecting cylinder 3 in a sliding mode, and one end, located outside the connecting cylinder 3, of the connecting column 12 is provided with a fixing block 13 connected with the sliding assembly;
the sliding component comprises a guide part 14 fixed on the outer wall of the connecting cylinder 3, a sliding block 15 which is in sliding fit with the guide part 14, and a connecting rod 16 which connects the sliding block 15 and the fixed block 13;
a sliding rod 17 is further fixed on the side of the sliding block 15, and a sleeve 18 which is in sliding fit with the sliding rod 17 is arranged in the guide member 14;
the sleeve 18 and the sliding rod 17 are sleeved with a second spring 19 in a compressed state, one end of the second spring 19 is connected with the sliding block 15, and the other end of the second spring is connected with the inner wall of the guide 14.
In detail, the limiting block 11 and the fixing block 10 are both arc-shaped.
In the embodiment of the utility model, after the puncture needle 1 is inserted into the blood vessel of the patient, the medical staff holds the connecting cylinder 3 by hand and pushes the sliding block 15, the sliding block 15 drives the fixing block 13, the connecting column 12 and the limiting block 11 to move through the connecting rod 16, the second spring 19 is further compressed, the limiting block 11 gradually moves towards the inner wall of the connecting cylinder 3 until the fixing block 10 is separated, and then the first spring 6 elastically returns to enable the insertion needle 5 to enter the vacuum tube 4;
during the above movement, the sliding rod 17 slides towards the sleeve 19 during the compression of the second spring 19, thereby avoiding the bending of the second spring 19.
Taking the embodiment combining all the features described in the present application as an example, in use, firstly, after the medical staff completes the sterilization work, the puncture needle 1 is inserted into the blood vessel of the patient, then, the medical staff holds the connecting cylinder 3 with a hand, pushes the sliding block 15, the limiting block 11 gradually moves towards the inner wall of the connecting cylinder 3 until it is separated from the fixing block 10, thereby, the first spring 6 releases elastic potential energy, the moving cylinder 7 drives the vacuum tube 4 to do linear motion towards the insertion needle 5, the insertion needle 5 is inserted into the vacuum tube 4, then, the blood enters the vacuum tube 4 through the puncture needle 1, the connecting tube 2 and the insertion tube 5, finally, the puncture needle 1 is pulled out of the body of the patient, and then the vacuum tube 4 is screwed out of the connecting cylinder 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The infection-preventing and needle-stick-injury-preventing vacuum blood sampling device is characterized by comprising a puncture needle (1), a connecting cylinder (3) connected with the puncture needle (1) through a connecting pipe (2) and a vacuum pipe (4) movably arranged in the connecting cylinder (3), wherein a contact pin (5) matched with the vacuum pipe (4) is fixedly arranged on the bottom wall of the connecting cylinder (3), the contact pin (5) is communicated with the connecting pipe (2), and the central axes of the vacuum pipe (4), the connecting cylinder (3) and the contact pin (5) are superposed;
the vacuum tube (4) is movably arranged in the connecting cylinder (3) through an ejection mechanism, the vacuum tube (4) is in threaded connection with the ejection mechanism, and the ejection mechanism stores elastic potential energy and is used for driving the vacuum tube (4) to do linear motion towards the contact pin (5) when releasing the elastic potential energy;
the outer wall of the connecting cylinder (3) is further provided with two groups of trigger mechanisms, the two groups of trigger mechanisms are arranged on the outer wall of the connecting cylinder (3) and connected with the vacuum tube (4) and used for restraining elastic potential energy reserved by the ejection mechanisms, when the trigger mechanisms move, the restraint on the elastic potential energy in the ejection mechanisms is removed, and the vacuum tube (4) moves towards the contact pin (5) so that the contact pin (5) enters the vacuum tube (4).
2. The infection-preventing and needle-stick-preventing vacuum blood collection device according to claim 1, wherein the ejection mechanism comprises a movable barrel (7) slidably disposed in the connecting barrel (3) through a guide structure, a first spring (6) connecting the movable barrel (7) and the connecting barrel (3), the first spring (6) being in a stretched state and coinciding with a central axis of the insertion needle (5);
one end of the first spring (6) is fixed with the end part of the movable barrel (7), the other end of the first spring is fixed with the bottom wall of the connecting barrel (3), and the movable barrel (7) is connected with the trigger mechanism.
3. The infection-preventing and needle-stick-injury-preventing vacuum blood sampling device as set forth in claim 2, wherein the guide structure is provided in two sets in the connecting cylinder (3) and comprises a protruding block (8) fixed on the outer wall of the moving cylinder (7) and a limiting groove (9) provided on the inner wall of the connecting cylinder (3) and adapted to the protruding block (8).
4. The infection-preventing and needle-stick-preventing vacuum blood collection device according to claim 2, wherein the trigger mechanism comprises a sliding assembly mounted on the outer wall of the connecting cylinder (3) and a limiting structure arranged between the connecting cylinder (3) and the movable cylinder (7) for limiting the movable cylinder (7) so that the elastic potential energy in the first spring (6) is limited.
5. The infection-preventing and needle-stick-injury-preventing vacuum blood sampling device as claimed in claim 4, wherein the limiting structure comprises a fixing block (10) arranged on the outer wall of the movable barrel (7) and a limiting block (11) movably arranged in the connecting barrel (3) through a connecting column (12), the connecting column (12) is slidably arranged on the connecting barrel (3), and one end of the connecting column outside the connecting barrel (3) is provided with a fixing block (13) connected with the sliding component.
6. The infection-preventing and needle-stick-injury-preventing vacuum blood collection device according to claim 5, wherein the slide assembly includes a guide (14) fixed to an outer wall of the connection cylinder (3), a slider (15) slidably fitted on the guide (14), and a link (16) connecting the slider (15) and the fixed block (13);
a sliding rod (17) is further fixed on the side part of the sliding block (15), and a sleeve (18) which is in sliding sleeve fit with the sliding rod (17) is arranged in the guide piece (14);
the sleeve (18) and the periphery of the sliding rod (17) are sleeved with a second spring (19) in a compressed state, one end of the second spring (19) is connected with the sliding block (15), and the other end of the second spring is connected with the inner wall of the guide piece (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122287868.2U CN216702543U (en) | 2021-09-22 | 2021-09-22 | Infection-preventing and puncture-preventing vacuum blood sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122287868.2U CN216702543U (en) | 2021-09-22 | 2021-09-22 | Infection-preventing and puncture-preventing vacuum blood sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN216702543U true CN216702543U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122287868.2U Active CN216702543U (en) | 2021-09-22 | 2021-09-22 | Infection-preventing and puncture-preventing vacuum blood sampling device |
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| CN (1) | CN216702543U (en) |
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- 2021-09-22 CN CN202122287868.2U patent/CN216702543U/en active Active
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