CN210871605U - Puncture-free blood collection tube - Google Patents
Puncture-free blood collection tube Download PDFInfo
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- CN210871605U CN210871605U CN201920914604.5U CN201920914604U CN210871605U CN 210871605 U CN210871605 U CN 210871605U CN 201920914604 U CN201920914604 U CN 201920914604U CN 210871605 U CN210871605 U CN 210871605U
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- blood collection
- collection tube
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- tube
- blood
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Abstract
The utility model provides a puncture-free blood collection tube, which belongs to the field of medical appliances. This puncture-free blood sampling tube sets up contact site and connecting portion through the top at the sealed lid of blood sampling tube, and connecting portion only play the connection effect, do not contact with elastic sealing ring, and in the actual process, only partial region on the contact site takes place the friction with elastic sealing ring, the frictional area that has significantly reduced has reduced frictional force to a great extent, has solved rotatory inconvenient and probably cause elastic sealing ring to suffer to destroy and cause the problem of hourglass blood. The flow channel is L-shaped with an obtuse angle at the corner, and can directly penetrate through the inner wall of the blind hole from the outside of the blind hole, so that the processing difficulty is greatly reduced. The sealed lid of heparin tube still includes the spiral hose that cavity and both ends run through, and the impact force that receives when the blood reachs the body bottom that has significantly reduced has avoided the appearance of hemolysis.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a puncture-free blood collection tube.
Background
Clinical blood collection is a very popular medical means at present, and blood samples are obtained through clinical blood collection, which is the basis of disease diagnosis and is the most basic medical item of each hospital. Just so, the hospital personnel need carry out the blood sampling operation many times every day, and the both ends of blood taking needle all have the felting needle, and one end is used for the blood vessel of puncture blood sampling object, and one end is the tail needle for puncture blood sampling pipe cap connects blood taking needle and heparin tube. Because medical personnel need carry out blood sampling tail needle puncture operation many times, just so increased medical personnel and stabbed the risk of hindering, infecting.
Simultaneously, under scenes such as operation or first aid, a patient may need to use the multitube blood collection tube, under this condition, because the tail needle of blood collection needle needs to puncture different blood collection tubes many times, the tail needle may result in blunting or damaging, causes the condition of blood leakage or puncture failure, consequently needs often to change the blood collection needle, carries out secondary venipuncture to the patient, causes unnecessary misery.
In order to solve the above problems, the invention of china with patent number 201910090818X provides a puncture-free vacuum blood collection tube and a using method thereof, comprising a sealing cover of the blood collection tube, the blood collection tube and an elastic sealing rubber plug. Before the use, the elastic sealing rubber plug is limited in the sealing cover of the blood sampling tube and cannot be randomly separated, and the sealing passage enables the blood sampling tube to be kept in a vacuum state. When the needle-free blood taking needle is used, the blood taking part of the needle-free blood taking needle is screwed into the sealing cover of the blood taking tube, the liquid injection head in the blood taking part continuously compresses the elastic sealing rubber plug to enable the elastic sealing rubber plug to be compressed and deformed downwards along with the penetration of the blood taking part, the upper end face of the sealing cover of the blood taking tube presses the elastic sealing ring of the needle-free blood taking needle to be compressed and deformed upwards, the exposed passage is communicated with the blood taking tube, and negative pressure in the blood taking tube sucks blood into the blood taking tube. After the needle-free blood taking needle is used, the blood taking part of the needle-free blood taking needle is screwed out, the elastic sealing rubber plug is restored, and the passage is sealed again, so that blood leakage or air entering the blood taking tube is prevented. Although the innovation reduces the puncture risk of the tail needle of the blood taking needle and provides more convenient selection for clinical operation, in actual use, a new problem occurs:
when the blood collection part of the needleless blood collection needle rotates, the lower end face of the elastic sealing ring of the blood collection part and the top face of the sealing cover of the blood collection tube generate very large friction force, so that the situation of rotation force and inconvenience can occur, the physical structure of the elastic sealing ring is damaged when the needleless blood collection needle is possibly used, and the problem of blood leakage of the blood collection needle occurs.
Disclosure of Invention
The utility model aims at the above-mentioned problem that exists among the prior art, provide and exempt from to pierce the heparin tube, this exempt from to pierce the heparin tube and reduced frictional force, reduce elastic sealing ring physical structure and suffer the possibility of destruction, avoid the condition that needleless blood taking needle leaked blood, solved rotatory labouring, inconvenient scheduling problem.
The purpose of the utility model can be realized by the following technical proposal:
puncture-free blood collection tube, including sealed lid of blood collection tube, body and elastic sealing plug, sealed lid of blood collection tube with for dismantling the connectivity between the body, sealed lid of blood collection tube fit in have elastic sealing plug, when the needleless blood collection needle with when the sealed lid of blood collection tube cooperates, elastic sealing plug has the trend of compressed, its characterized in that, sealed lid top of blood collection tube has connecting portion and is used for the contact site with the contact site of elastic sealing ring contact, connecting portion with the contact site links to each other.
In the prior art who reveals, when the blood sampling portion of needleless blood sampling needle cooperatees with the sealed lid of heparin tube, upwards compress the elastic sealing ring of blood sampling portion through the sealed lid of heparin tube, at this in-process, rotatory friction can take place for both, make the operation receive great hindrance, probably lead to elastic sealing ring to break and appear the condition of leaking blood, this puncture-free heparin tube sets up contact site and connecting portion through the top at the sealed lid of heparin tube, connecting portion only play the connection effect, do not contact with elastic sealing ring, in actual process, only partial region takes place the friction with elastic sealing ring on the contact site, the frictional force has significantly reduced, thereby the rotation is inconvenient and probably cause elastic sealing ring to suffer to destroy and cause the problem of leaking blood.
Foretell puncture-free heparin tube, a blind hole and blind groove have been seted up at the sealed lid top of heparin tube, blind groove inner wall has a helicitic texture, have in the blind hole the elastic sealing plug, set up an at least circulation passageway in the sealed lid of heparin tube, circulation passageway inner runs through the blind hole inner wall, circulation passageway outer end runs through the sealed lid bottom of heparin tube.
The inner wall of the blood sampling part of the needleless blood sampling needle is also provided with a thread structure, the blind groove is used for connecting the blood sampling part with the sealing cover of the blood sampling tube, when the blood sampling part is continuously screwed into the blind groove through threads, the elastic sealing rubber plug in the blind hole is continuously compressed by the liquid injection head of the blood sampling tube, the inner end of the circulation channel is continuously exposed, and when the inner end of the circulation channel is communicated with the liquid injection port, blood flows into the tube body through the circulation channel.
In the puncture-free blood collection tube, the flow channel is in an L shape with an obtuse angle at the corner.
The circulation passageway is that the corner means for obtuse L shape, and the lower section of passageway is vertical, and the first section is the slope, and the first section of passageway is the level among the prior art, need follow the blind hole inside and carry out the level to the blind hole inner wall and pierce through processing, and processing is very difficult, the utility model discloses use the passageway of slope, can directly follow the blind hole and pierce through processing to the blind hole inner wall outward, make the processing degree of difficulty greatly reduced.
Foretell puncture-free blood collection tube, sealed lid of blood collection tube still includes the buffering lid, the buffering lid with sealed lid of blood collection tube links to each other, the outer end of circulation passageway with the inner chamber intercommunication of buffering lid, the buffering lid is linked together with the body.
Blood flows into the buffering cover through the flow passage, and then flows into the tube body from the bottom wall of the buffering cover, so that the height of the blood directly falling is reduced, and the effects of buffering the blood and preventing hemolysis are achieved.
Foretell puncture-free heparin tube, the buffering lid still includes the convex part, the convex part with the diapire of buffering lid is as an organic whole, the convex part be upper and lower open-ended hollow structure.
Foretell puncture-free blood collection tube, the sealed lid of blood collection tube still includes the hollow and both ends run through's helical hose, helical hose one end with the convex part tight fit is connected.
The buffering lid still has another effect, and blood flows into the spiral hose from the buffering lid in, roundly flows in the body bottom through the spiral hose, and the impact force that receives when greatly reduced blood reachs the body bottom has avoided the appearance of hemolysis.
Foretell puncture-free heparin tube, heparin tube sealing cover bottom has first cooperation groove, body mouth of pipe tight fit is in the first cooperation groove, second cooperation groove has been seted up on the roof in first cooperation groove, the buffering lid with second cooperation tight fit is connected.
The body passes through the tight fit that first cooperation groove realized with the sealed lid of heparin tube, and the buffering lid passes through the tight fit that second cooperation groove realized with the sealed lid of heparin tube.
In the puncture-free blood collection tube, the contact part and the connecting part are of an integral structure, the longitudinal section of the contact part is wide at the top and narrow at the bottom, and the contact part and the connecting part are annular.
The structure that is narrow under wide is favorable to reducing the frictional force that the elastic sealing ring received more, makes connecting portion not take place the contact with the elastic sealing ring, only plays the supporting role.
In the puncture-free blood collection tube, the cross section of the top surface of the contact part is arc-shaped.
The annular contact groove of one-tenth has been seted up to elastic seal ring's bottom surface, and the contact groove top surface matches with contact site top surface shape, and the cross-section all becomes the arc, because the atress condition is different, and the arcwall face is favorable to the rotation operation, reduces frictional force.
Compared with the prior art, the puncture-free blood collection tube has the following advantages:
1. this circulation passageway of puncture-free heparin tube is that the corner is obtuse L shape, uses the circulation passageway of slope, can directly pierce through processing to the blind hole inner wall outside the blind hole, makes the processing degree of difficulty greatly reduced.
2. This blood of exempting from to pierce blood sampling tube flows into the spiral hose from the buffering lid in, roundly flows into body bottom through the spiral hose, and the impact force that receives when greatly reduced blood reachs the body bottom has avoided the appearance of hemolysis.
3. This puncture-free blood sampling tube has contact site and connecting portion, and the friction area that has significantly reduced has reduced frictional force in the very big degree, has solved rotatory inconvenient and probably causes the elastic sealing ring to suffer to destroy thereby causing the problem of hourglass blood.
Drawings
FIG. 1 is a cross-sectional view of the present puncture-free blood collection tube and needle-free blood collection needle.
Fig. 2 is a cross-sectional view of the puncture-free blood collection tube.
Fig. 3 is a sectional view of the sealing cap for blood collection tubes.
List of reference numerals
In the figure:
1. a sealing cover of the blood collection tube;
1a, an elastic sealing rubber plug;
1b, a connecting part;
1c, a contact portion;
1d, blind holes;
1e, blind grooves;
1f, a flow channel;
1g, a buffer cover;
1g1, convex part;
1h, a spiral hose;
1i, a first matching groove;
1j, a second mating groove;
2. a pipe body;
3. a blood collection part;
3a, a liquid injection head;
3a1, liquid injection port;
3b, an elastic sealing ring;
3b1, contact groove;
Detailed Description
Puncture-free blood collection tube, including sealed lid 1 of blood collection tube, body 2 and elastic sealing plug 1a, be detachable connectivity structure between sealed lid 1 of blood collection tube and the body 2, sealed lid 1 of blood collection tube in-match elastic sealing plug 1a, when needleless blood collection needle and the sealed lid 1 of blood collection tube cooperate, elastic sealing plug 1a has the trend of compressed, 1 top of sealed lid of blood collection tube has connecting portion 1b and is used for the contact site 1c with the contact of elastic sealing ring 3b, connecting portion 1b and contact site 1c link to each other. In the prior art who discloses, when the blood sampling portion 3 of needleless blood sampling needle and the sealed lid 1 of heparin tube cooperate, upwards compress the elastic sealing ring 3b of blood sampling portion 3 through sealed lid 1 of heparin tube, in this process, rotatory friction can take place for both, make the operation receive great hindrance, the condition that probably leads to elastic sealing ring 3b to break and appear leaking the blood, this puncture-free heparin tube sets up contact site 1c and connecting portion 1b through the top at sealed lid 1 of heparin tube, connecting portion 1b only plays the connection effect, do not contact with elastic sealing ring 3b, in actual process, only partial region takes place the friction with elastic sealing ring 3b on contact site 1c, the frictional area has significantly reduced, frictional force has greatly reduced, thereby solved rotatory inconvenient and probably suffer to cause elastic sealing ring 3b to destroy thereby cause the problem of leaking the blood. A blind hole 1d and blind groove 1e have been seted up at sealed 1 top of heparin tube, and blind groove 1e inner wall has a helicitic texture, has elastic sealing plug 1a in the blind hole 1d, has seted up an at least circulation passageway 1f in the sealed lid of heparin tube, and the inner blind hole 1d inner wall of running through of circulation passageway 1f, and the sealed 1 bottom of lid of heparin tube is run through to circulation passageway 1f outer end.
Specifically, the inner wall of the blood collection part 3 of the needleless blood collection needle is also provided with a thread structure, the blind groove 1e is used for connecting the blood collection part 3 with the blood collection tube sealing cover 1, when the blood collection part 3 is screwed into the blind groove 1e continuously through threads, the elastic sealing rubber plug 1a in the blind hole 1d is compressed continuously by the liquid injection head 3a of the blood collection tube, the inner end of the circulation channel 1f is exposed continuously, and at the moment, when the inner end of the circulation channel 1f is communicated with the liquid injection port 3a1, blood flows into the tube body 2 through the circulation channel 1 f. The flow channel 1f is L-shaped with an obtuse angle of rotation. The circulation passageway 1f is that the corner means for obtuse L shape, and the second section of passageway is vertical, and the first section is the slope, and the first section of passageway is the level among the prior art, need follow blind hole 1d inside and carry out the level to blind hole 1d inner wall and pierce through processing, and processing is very difficult, the utility model discloses use the passageway of slope, can directly follow blind hole 1d and pierce through processing to blind hole 1d inner wall outward, make the processing degree of difficulty greatly reduced. Sealed lid 1 of heparin tube still includes buffering lid 1g, and buffering lid 1g links to each other with sealed lid 1 of heparin tube, and the outer end of circulation passageway 1f and the inner chamber intercommunication of buffering lid 1g, and buffering lid 1g is linked together with body 2. Blood flows into the buffering cover 1g through the flow channel 1f, and then flows into the tube body 2 from the bottom wall of the buffering cover 1g, so that the height of the blood directly falling is reduced, the effect of buffering the blood and preventing the occurrence of hemolysis is achieved.
Specifically, the cushion cover 1g further includes a projection 1g1, the projection 1g1 is integral with the bottom wall of the cushion cover 1g, and the projection 1g1 has a hollow structure with an upper and lower opening. The sealing cover 1 of the blood collection tube further comprises a hollow spiral hose 1h with two ends penetrating through, and one end of the spiral hose 1h is connected with the convex part 1g1 in a tight fit mode. Buffering lid 1g still has another effect, and blood circuitously flows in body 2 bottom through spiral hose 1h in buffering lid 1g flows into spiral hose 1h, has significantly reduced the impact force that receives when blood reachs body 2 bottom, has avoided the appearance of hemolysis. The sealed 1 bottom of lid of heparin tube has first cooperation groove 1i, and 2 mouths of pipe of body tight fit have been seted up second cooperation groove 1j on the roof of first cooperation groove 1i in first cooperation groove 1i, and buffering lid 1g is connected with second cooperation tight fit. Body 2 realizes the tight fit with the sealed lid 1 of heparin tube through first cooperation groove 1i, and buffering lid 1g realizes the tight fit with the sealed lid 1 of heparin tube through second cooperation groove 1 j. The contact portion 1c and the connection portion 1b are formed integrally, and have a vertical cross section that is wide at the top and narrow at the bottom, and the contact portion 1c and the connection portion 1b are both annular. The structure that is narrow under wide is favorable to reducing the frictional force that elastic sealing ring 3b received more, makes connecting portion 1b not take place the contact with elastic sealing ring 3b, only plays the supporting role. The top surface section of the contact portion 1c is arc-shaped. The annular contact groove of one-tenth is seted up to the bottom surface of elastic sealing ring 3b, and the top surface of contact groove 3b1 matches with contact site 1c top surface shape, and the cross-section all becomes the arc, because the atress condition is different, and the arcwall face is favorable to the rotation operation, reduces frictional force.
Details, structures, dimensions and principles not mentioned in the present application are all known in the art or can be obtained by simple selection of those skilled in the art, and are not described in detail.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. Puncture-free blood collection tube, including sealed lid of blood collection tube, body and elastic sealing plug, sealed lid of blood collection tube with for dismantling the connectivity between the body, sealed lid of blood collection tube fit in have elastic sealing plug, when the needleless blood collection needle with when the sealed lid of blood collection tube cooperates, elastic sealing plug has the trend of compressed, its characterized in that, sealed lid top of blood collection tube has connecting portion and is used for the contact site with the contact site of elastic sealing ring contact, connecting portion with the contact site links to each other.
2. The puncture-free blood collection tube according to claim 1, wherein the top of the sealing cap of the blood collection tube is provided with a blind hole and a blind groove, the inner wall of the blind groove has a thread structure, the elastic sealing rubber plug is arranged in the blind hole, the sealing cap of the blood collection tube is provided with at least one circulation channel, the inner end of the circulation channel penetrates through the inner wall of the blind hole, and the outer end of the circulation channel penetrates through the bottom of the sealing cap of the blood collection tube.
3. The puncture-free blood collection tube according to claim 2, wherein the flow channel is L-shaped with obtuse corners.
4. A puncture-free blood collection tube according to claim 2 or 3, wherein the sealing cap of the blood collection tube further comprises a buffer cap, the buffer cap is connected with the sealing cap of the blood collection tube, the outer end of the circulation channel is communicated with the inner cavity of the buffer cap, and the buffer cap is communicated with the tube body.
5. The puncture-free blood collection tube according to claim 4, wherein the buffer cap further comprises a protrusion, the protrusion is integrated with the bottom wall of the buffer cap, and the protrusion has a hollow structure with an upper opening and a lower opening.
6. The puncture-free blood collection tube according to claim 5, wherein the sealing cap further comprises a hollow spiral tube with two ends penetrating through the hollow spiral tube, and one end of the spiral tube is tightly fitted and connected with the convex part.
7. The puncture-free blood collection tube according to claim 4, wherein a first matching groove is formed at the bottom of the sealing cover of the blood collection tube, the tube orifice of the tube body is tightly matched in the first matching groove, a second matching groove is formed on the top wall of the first matching groove, and the buffer cover is tightly matched and connected with the second matching groove.
8. The puncture-free blood collection tube according to claim 1, 2, 3, 5, 6 or 7, wherein the contact portion and the connection portion are integrally formed and have a vertical cross section that is wide at the top and narrow at the bottom, and the contact portion and the connection portion are both annular.
9. The puncture-free blood collection tube of claim 1, 2, 3, 5, 6 or 7, wherein the top surface of the contact portion has an arc-shaped cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914604.5U CN210871605U (en) | 2019-06-18 | 2019-06-18 | Puncture-free blood collection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914604.5U CN210871605U (en) | 2019-06-18 | 2019-06-18 | Puncture-free blood collection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210871605U true CN210871605U (en) | 2020-06-30 |
Family
ID=71327251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920914604.5U Expired - Fee Related CN210871605U (en) | 2019-06-18 | 2019-06-18 | Puncture-free blood collection tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210871605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113397542A (en) * | 2021-05-21 | 2021-09-17 | 郴州市第一人民医院 | Side-suction vertical type hemolysis-preventing vacuum blood collection tube |
-
2019
- 2019-06-18 CN CN201920914604.5U patent/CN210871605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113397542A (en) * | 2021-05-21 | 2021-09-17 | 郴州市第一人民医院 | Side-suction vertical type hemolysis-preventing vacuum blood collection tube |
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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: 20200630 Termination date: 20210618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |