CN2251972Y

CN2251972Y - Totally-enclosed negative pressure hemostix

Info

Publication number: CN2251972Y
Application number: CN 95245460
Authority: CN
Inventors: 白杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-07
Filing date: 1995-12-07
Publication date: 1997-04-16
Anticipated expiration: 2005-12-07

Abstract

The utility model relates to a totally-enclosed negative pressure hemostix used for testing the blood, which comprises an injector and a test tube. The utility model is characterized in that a test tube plug matched with the test tube is arranged at the opening end of the test tube, so the inside of the test tube is absolute seal; the top of the test tube plug is hermetically connected with a blood extracting tube and an air extracting tube; the other ends of each blood extracting tube and each air extracting tube are respectively connected with a blood taking needle head and an injector nipple; when an inner drum of the injector is vellicated, the blood can be directly extracted to the test tube. The utility model has the advantages that the totally-enclosed negative pressure hemostix used for testing the blood avoids the blood pollution, is convenient to transmit, is useful to save and use in the asepsis condition, is not easy to happen the hemolysis phenomenon, has low cost, and has convenient and fast blood taking. The totally-enclosed negative pressure hemost integrates the advantages of an injector blood taking tube and a vacuum blood taking tube into a whole.

Description

Total enclosing negative pressure hemostix

This utility model belongs to the hemostix of clinical medicine blood testing.

At present, the domestic hospital at different levels hemostix that is used for blood testing uses the syringe or the disposable plastic injector of glass more.On the nipple of syringe detachable needle is installed, thrusting the inner core of twitching syringe behind the blood vessel can be incorporated into blood in the syringe, and then blood is transposed in vitro.The open blood sampling of this kind exists many problems in operating process, can mainly reduce: disposable syringe is with low quality, and gas leak phenomenon often takes place, and should not be used for blood sampling; With the glass syringe then sterilization difficulty of taking a blood sample, again blood is transposed in vitro after having adopted blood, the blood cross-contamination easily takes place; The test tube of dress blood mostly is opened type, easily spills leakage phenomenon in carrying or passing on; Directly blood is pushed in vitro with syringe in addition, haemolysis easily takes place.For this reason, Zhong China medical test Za Chi is in the 318th page of introduction of having published a kind of external use vacuum test tube of the 3rd phase of nineteen ninety-five.This kind vacuum test tube is the quantitative vacuum gas that utilizes in the vacuum tube, directly blood is pumped in the vacuum tube by getting the blood pin.Can realize hermetically sealed, pollution-free.But use the shortcoming of this vacuum test tube also a lot, as: manufacturing process complexity, cost height; Vacuum tolerance in the vacuum test tube is according to the required blood sampling volume of common people and quantitative, and is then inapplicable for the patient of body inner blood hypercoagulability; To hold time be limited to vacuum gas in the vacuum test tube in addition, and for the difficult people of blood sampling especially old man and the child success of often can not once taking a blood sample, if not smooth, it is inaccurate then can not to continue blood sampling or blood sampling volume after the consumption of vacuum gas.

Based on above situation, the purpose of this utility model provides a kind ofly to be avoided blood contamination, carry or passes on conveniently, be difficult for haemolysis takes place, and cost is low, and blood sampling is convenient, the hemostix of total enclosing negative pressure accurately.To improve the version of existing hemostix.

In order to achieve the above object, technical solution of the present utility model is: total enclosing negative pressure hemostix comprises syringe and test tube.The characteristics of its version are, are provided with the pipe close that is complementary with it at the opening of described test tube and make and in vitro form total enclosing.The upper surface of pipe close is sealedly connected with bloodletting tube and exhaust tube, and bloodletting tube and exhaust tube all with in vitro communicate.The other end of bloodletting tube with get the blood syringe needle and join, but the other end of exhaust tube docks with the syringe nipple tight fit.Thrust in the blood vessel when getting the blood syringe needle, the inner core of twitching syringe just can be drawn into blood in the test tube.

According to technique scheme, the form of being tightly connected of pipe close and bloodletting tube and exhaust tube can adopt: pipe close is to be made by elastic rubber material, and its upper surface is directly inserted two syringe needles and linked to each other with exhaust tube with bloodletting tube respectively.

The form that is tightly connected of pipe close and bloodletting tube and exhaust tube also can adopt: pipe close is provided with two through holes, each through hole is made as the awl reaming in the upper surface of pipe close, the union joint profile of bloodletting tube and exhaust tube is made as cone, and each cone docks with each awl reaming tight fit and realizes being tightly connected.Be furnished with the gag that is complementary with it in addition on the pipe close in addition, after finishing in order to blood sampling test tube sealed.

For the ease of observing, prevent from blood is pumped in the syringe.Mating surface at pipe close and test tube opening inwall is provided with the extension, is provided with again along the semicircular projections of inboard wall of test tube half cycle on the extension.Bloodletting tube is communicated with at the semicircular projections position, and exhaust tube is communicated with at the position, extension.

According to the form that is tightly connected of above-mentioned pipe close and bloodletting tube and exhaust tube, for fear of the generation of haemolysis.With the outer wall of the pipe close semicircular projections of inboard wall of test tube mating surface on be provided with guide hole or guide groove, or the through hole that handle links to each other with bloodletting tube is located on the outer wall of semicircular projections.When blood drawing, blood is slowly flowed in vitro along the inwall of test tube.

In the above-mentioned technical scheme, described test tube is to be made by transparent material, and its perisporium is provided with the capacity marking line.

Because it is airtight that this utility model has adopted test tube, utilize syringe generation negative pressure and blood directly is pumped in the test tube, reduced blood transposition program, can avoid the cross-contamination of blood, be beneficial to aseptic preservation and use; Because the blood of suction is in full closeding state all the time in the test tube, can be easy to carry and pass on; Again because when blood drawing, it is invisible spectro that blood is that the inwall along test tube slowly flows into, and can prevent the generation of haemolysis effectively, makes that blood coagulation is fast, serum yield height.In addition, use this hemostix to compare, increase cost hardly with the utensil that uses existing hemostix and chemical examination.Have and integrate the advantage of using blood collection needle and vacuum blood collection blood sampling tube, blood sampling facility, quick, characteristic of accurate.The needs that can adapt to the blood count automated job.

Below in conjunction with the drawings and specific embodiments this utility model is described further.

Fig. 1 is the structural representation of this utility model embodiment 1;

Fig. 2 is the connection diagram of pipe close and bloodletting tube and the exhaust tube of this utility model embodiment 2;

Fig. 3 is the gag structure chart of this utility model embodiment 2.

Embodiment 1. is referring to Fig. 1, and total enclosing negative pressure hemostix comprises syringe 1 and test tube 2.The opening of test tube 2 is provided with the pipe close of being made by elastic rubber material 6 and makes and form total enclosing in the test tube 2.Pipe close 6 is provided with extension 3 with the mating surface of test tube 2 opening inwalls, is provided with again on the extension 3 along the semicircular projections 8 of test tube 2 inwall half cycles.The outer wall of semicircular projections 8 is provided with guide hole 9, and the syringe needle that links to each other with bloodletting tube 7 is inserted into the guide hole 9 from the upper surface of pipe close 6, and blood is slowly flowed in the test tube 2 along the inwall of test tube 2.The syringe needle that links to each other with exhaust tube 5 is inserted in 3 positions, extension and feeds in the test tube 2.The other end of bloodletting tube 7 with get the blood syringe needle and join, but the other end of exhaust tube 5 docks with syringe 1 nipple tight fit.Each syringe needle adopts medical scalp acupuncture.Test tube 2 is to be made by transparent material, is carved with the capacity marking line on its perisporium.Thrust in the blood vessel getting the blood syringe needle during use, twitch the inner core of syringe 1, just can be drawn into blood in the test tube 2.When blood reaches the mark line of aequum, extract and get the blood syringe needle, take away two syringe needles of pipe close 6 upper surfaces, test tube 2 is airtight naturally, i.e. and blood sampling finishes.

Embodiment 2. omits narration referring to Fig. 2 and Fig. 3 with embodiment 1 same section.Be provided with two through holes 4 on pipe close 6, each through hole 4 is made as the awl reaming in pipe close 6 upper surfaces, and the union joint profile of bloodletting tube 7 and exhaust tube 5 is made as cone, and each cone docks with each awl reaming tight fit and realizes being tightly connected.The through hole 4 that links to each other with bloodletting tube 7 is located on the outer wall with the semicircular projections 8 of the pipe close 6 of the inwall mating surface of test tube 2, and blood slowly flows in the test tube 2 along the inwall of test tube 2 when making blood drawing.The through hole 4 that links to each other with exhaust tube 5 is located at 3 positions, extension of pipe close 6.Be furnished with the gag 10 that is complementary with it on the pipe close 6 in addition, the reaming of respectively boring that the lower surface in the gag 10 is provided with two cones and pipe close 6 upper surfaces is complementary.After blood sampling finishes, gag 10 covered each cone and each awl reaming and gag 10 and pipe close 6 are sealed simultaneously.

In addition, if pipe close 6 and bloodletting tube 7 and being tightly connected of exhaust tube 5 are designed to other form, test tube 2 is designed to directly to chemically examine other shape of use.Suchlike technical scheme all belongs to protection domain of the present utility model.

Claims

1. total enclosing negative pressure hemostix that is used for blood testing, it comprises syringe and test tube, the opening that it is characterized in that described test tube (2) is provided with the pipe close (6) that is complementary with it and makes and form total enclosing in the test tube (2), the upper surface of pipe close (6) is sealedly connected with bloodletting tube (7) and exhaust tube (5), bloodletting tube (7) and exhaust tube (5) all with in the test tube (2) communicate, the other end of bloodletting tube (7) with get the blood syringe needle and join, the other end of exhaust tube (5) with syringe (1) but the nipple tight fit dock, thrust in the blood vessel when getting the blood syringe needle, twitch syringe (1) inner core and just can be drawn into blood in the test tube (2).

2. according to the described hemostix of claim 1, it is characterized in that described pipe close (6) is to be made by elastic rubber material, its upper surface can be inserted two syringe needles and be linked to each other with exhaust tube (5) with bloodletting tube (7) respectively.

3. according to claim 1 or 2 described hemostixes, it is characterized in that described syringe needle is medical scalp acupuncture or medical common syringe needle.

4. according to the described hemostix of claim 3, it is characterized in that syringe needle on position that described pipe close (6) upper surface links to each other with bloodletting tube (7) below be provided with guide hole or guide groove (9) can make blood flow in the test tube (2) along the inwall of test tube (2).

5. according to the described hemostix of claim 1, it is characterized in that described pipe close (6) is provided with two through holes (4), each through hole (4) is made as the awl reaming in the upper surface of pipe close (6), the union joint profile of bloodletting tube (7) and exhaust tube (5) is made as cone, and each cone docks with each awl reaming tight fit to be realized being tightly connected.

6. according to the described hemostix of claim 5, it is characterized in that described pipe close (6) is furnished with the gag (10) that is complementary with it in addition and test tube (2) can be sealed.

7. according to the described hemostix of claim 6, it is characterized in that lower surface in the described gag (10) be provided with two with pipe close (6) upper surface respectively bore the cone that reaming is complementary, gag (10) is covered on pipe close (6), can make each cone and each bore reaming to seal.

8. according to the described hemostix of claim 5, it is characterized in that the described through hole (4) that links to each other with bloodletting tube (7) is located on the outer wall with the pipe close (6) of test tube (2) inwall mating surface, blood flows in the test tube (2) along the inwall of test tube (2) when making blood drawing.

9. according to claim 1,2,4,5 or 8 described hemostixes, it is characterized in that the described pipe close (6) and the mating surface of test tube (2) opening inwall are provided with extension (3), be provided with again on the extension (3) along the semicircular projections (8) of test tube (2) inwall half cycle, bloodletting tube (7) is communicated with on the outer wall of semicircular projections (8), and exhaust tube (5) is communicated with in the extension (3) position.

10. according to the described hemostix of claim 9, it is characterized in that described test tube (2) is to be made by transparent material, its perisporium is provided with the capacity marking line.