CN207870897U - Micro vim and vigour hemostix - Google Patents

Abstract

The utility model provides a kind of micro vim and vigour hemostix, including：One shell is formed with a connecting seat on the shell, a slideway is formed with inside the connecting seat, the side of the slideway is formed with a limiting section；The blood taking needle being connect with the shell；One needle seal, including：To be arranged a cap body of the blood taking needle, the blind end of the cap body is embedded with a sealing element, and the side of the cap body is equipped with a gap；It is formed in a first connecting rod of the open end of cap body, the position of the formation other side opposite with the gap in cap body；The second connecting rod that one end is connect by cradle head with the first connecting rod, the second connecting rod can be radially slided along the slideway；And the other end of second connecting rod is formed with the buckling parts that a disengagable fastening can be formed with the limiting section.After the completion of blood sampling, needle seal can quick closure syringe needle, avoid vim and vigour sample from influencing vim and vigour testing result because being communicated with outside air.

Description

Micro vim and vigour hemostix

Technical field

The utility model is related to medical care field more particularly to medical instruments, and in particular to a kind of micro vim and vigour hemostix.

Background technology

Blood_gas analysis is the gas detected in the presence of blood, it is an important finger for reflecting physiology of respiration function Mark.Part vim and vigour detect electrolyte (NA, K, CL, CA) and part biochemical project detection combination together at present.Vim and vigour mark This is to acquire radial artery, preceding brachial artery, based on femoral artery, because only that arterial blood could correctly reflect physiology of respiration function.

Currently, the acquisition of domestic vim and vigour sample mainly has two kinds of modes：Disposable syringe and vim and vigour hemostix (vim and vigour Needle).Wherein problems with is susceptible to using disposable syringe acquisition vim and vigour sample：

1. complexity：Whether the operation of operating personnel's both hands pricks arteries by rule of thumb when syringe acquires arterial blood, When operating personnel prick arterial by rule of thumb, another hand starts to draw blood, as arterial is easily pierced through or be extracted by misoperation Venous blood, acquires old man and child is extremely difficult.

2. patient privacy：Blood collection needle amount is larger (1.5-2ml), mainly (the thigh root artery based on femoral artery Pipe).

3. pain sense：Pain sense mainly determines that syringe is typically chosen syringe needle by the thickness of syringe needle and blood sampling time length Between 0.65-0.8, blood sampling volume is in (1.5-2ml) blood sampling time at 10-15 seconds or so.

4. sample variable quantity：Influencing sample result mainly has following factor；

A. blood specimen is wanted and air exclusion, syringe isolation air are preferable.

B. blood specimen temperature, temperature are affected to sample, and syringe blood samples storage time should not surpass under normal circumstances 15 minutes are spent, this is because syringe cannot be quickly cooled down blood specimen, such haemocyte, especially leucocyte and reticulocyte Continue to be metabolized, generate the acidic metabolites such as lactic acid, PH, BE is made to decline.

C. vim and vigour sample storage material.Syringe is plastic products, and plastic products are more than 15.96kpa in partial pressure of oxygen (120mmHg) has apparent oxygen consumption, (see Blood_gas analysis and both at home and abroad in relation to vim and vigour book).

5. vim and vigour sample is quantitative：The quantitative finger of vim and vigour sample, the quantitative and blood sampling of anti-coagulants quantify.Syringe anti-coagulants Number and blood sampling volume completely lean on operating personnel experience, vim and vigour chemical result can be influenced when anti-coagulants is excessive, works as anti-coagulants It will produce blood coagulation phenomenon when very few.

6. anthemorrhagic difficulty：Since syringe uses thicker syringe needle, larger to vessel injury, bleeding stopping period is longer (10-15 minutes), are also also easy to produce thrombus.

Thus, at present in medical care field, vim and vigour hemostix (blood gas needle) is generally utilized to acquire vim and vigour sample, can solved certainly The dynamic blood sampling problem quantitative with blood sampling volume (part is quantitative), that is, solve the problems, such as that anti-coagulants is quantitative, also become acquisition arterial blood It is simple and convenient.

Existing product, such as the micro vim and vigour hemostix produced by German Roche Diagnostics GmbH is first to cure at home Protector for collar domain is commonly used to the tool of acquisition vim and vigour sample.Its product structure is as shown in Figure 1 to Figure 3, including blood taking needle 11, shell 12 With needle seal 13.Blood taking needle uses thinner syringe needle, the front end of shell 12 to be formed with female Luer 121, and blood taking needle 11 is logical It crosses female Luer 121 to connect with shell 12, the structures such as U-shaped capillary of setting in shell.Quantitative trace blood may be implemented.

But there are still some not convenient enough and health places in use for existing product, as shown in Figure 1, product Before the use, blood taking needle 11 is sealed by needle seal 13, in gnotobasis, when needing blood sampling, by syringe needle Sealing element 13 is removed, as shown in Fig. 2, then blood was collected, after blood sampling, then covers needle seal 13, is then submitted and is adopted The vim and vigour sample of collection, and when covering back needle seal 13, since the inner wall of needle seal 13 has been contacted with the external world, destroy Gnotobasis can influence the parameter of vim and vigour sample to a certain extent；On the other hand, in blood collection procedure, needle seal 13 with Blood taking needle 11 is separation, cannot arbitrarily be placed so that operation is cumbersome；Also, the syringe needle that blood taking needle 11 uses is very Sharp, medical staff is when returning needle seal lid, it is possible to since nervous or hasty reason is by needlestick injuries, not only Personnel's injury is caused, vim and vigour sample but will be polluted.

It is therefore desirable to design a kind of micro vim and vigour hemostix that operation is more convenient, safe, hygienic, to overcome above-mentioned ask Topic.

Utility model content

In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of micro vim and vigour hemostix, after blood sampling, Neng Goufang Just complete the sealing of syringe needle, safety swift to operate, and after the completion of blood sampling, needle seal can quick closure syringe needle, make Vim and vigour sample and air exclusion avoid vim and vigour sample from influencing vim and vigour testing result because being communicated with outside air.

In order to achieve the above object, the technical scheme adopted by the utility model is that：

A kind of micro vim and vigour hemostix, including：

One shell is formed with a connecting seat on the shell, a slideway is formed with inside the connecting seat, the slideway Side is formed with a limiting section；

The blood taking needle being connect with the shell；

One needle seal, including：To be arranged a cap body of the blood taking needle, the blind end of the cap body (adopt by correspondence Blood needle point end position) it is embedded with a sealing element, the side of the cap body is equipped with a gap；

It is formed in a first connecting rod of the open end of cap body, the position of formation is opposite with the gap another in cap body Side；

The second connecting rod that one end is connect by cradle head with the first connecting rod, the second connecting rod can be along the cunnings Road radially slides；And the other end of second connecting rod is formed with the buckling parts that a disengagable fastening can be formed with the limiting section.

Further, the material elastoplastic of the second connecting rod, the buckling parts are to be formed in the second connecting rod The tip of one hook formation of the other end.

Further, the limiting section is to be opened in connecting seat, is connected to the channel and the opening outside connecting seat.

Further, the sealing element is rubber stopper.

Further, the gap length subtracts second connecting rod more than the length of the blood taking needle and is radially slided in slideway Stroke.

Further, the cradle head is a pin-jointed structure.

Further, the cradle head is a thin-wall construction.

Further, the blood taking needle is detachably connected by being formed in the female Luer of housing forward end with shell.

Further, the blood taking needle is integrally formed with the shell.

By taking above-mentioned technical proposal, before blood sampling, hold shell on the other hand, another pulls dynamic cap body, then in turn It is rotated at movable joint, exposes syringe needle, you can blood was collected, after the completion of blood sampling, first rotates according to opposite process and pulls again, then Under the action of the spring, coordinate the guiding of second connecting rod, can be easy to penetrate blood taking needle in sealing element.It can be 1 after blood sampling It is completed within second, the influence of outer bound pair vim and vigour sample is minimized.

Description of the drawings

Fig. 1 is the overall structure diagram of the micro vim and vigour hemostix of existing product in background technology.

Fig. 2 is that the micro vim and vigour hemostix in Fig. 1 removes the structural schematic diagram after needle seal.

Fig. 3 is the structural schematic diagram of the shell of the micro vim and vigour hemostix in Fig. 1.

Fig. 4 is the overall structure diagram of the micro vim and vigour hemostix in one embodiment of the utility model.

Fig. 5 is overall structure diagram of micro vim and vigour hemostix when blood was collected in one embodiment of the utility model.

Fig. 6 is that overall structure when the micro vim and vigour hemostix in one embodiment of the utility model removes blood taking needle is illustrated Figure.

Fig. 7 is another overall structure diagram of the micro vim and vigour hemostix in one embodiment of the utility model, middle part Separation structure does section and shows.

Fig. 8 is the partial enlargement structural representation of the micro vim and vigour hemostix in one embodiment of the utility model.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clear, complete description, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.Feature of the cooperation institute's attached drawing to the present invention below It elaborates with advantage.

As shown in Figures 4 to 6, a kind of micro vim and vigour hemostix is provided in one embodiment, including：

Shell 2 is formed with connecting seat 3 on shell, and with reference to figure 7 and Fig. 8, connection is formed with a slideway inside 3；Slideway Side is formed with a limiting section 45；

The blood taking needle 1 being connect with shell；

Needle seal 4, as shown in fig. 7, comprises：To be arranged the cap body 41 of blood taking needle 1, the blind end of cap body 41 is (right Answer blood taking needle tip location) it is embedded with rubber stopper 42 as sealing element, the side of cap body is equipped with a gap；

It is formed in the first connecting rod 44 of the open end of cap body 41, the position of formation is opposite with gap another in cap body Side；In addition, the side is also formed with handle 46, it is that can accommodate handle 46 with two fingers and operate pulling or rotating cap body 41.

The second connecting rod 43 that one end is connect by cradle head with first connecting rod 44, second connecting rod 43 can be radially sliding along slideway It is dynamic.And the other end of second connecting rod 43 is formed with the buckling parts that a disengagable fastening can be formed with limiting section 45.

The material elastoplastic of second connecting rod 43, buckling parts are a hook formation of the other end for being formed in second connecting rod 43 Tip.

Limiting section 45 is to be opened in connecting seat, communicating passage and the opening outside connecting seat.It can refer to existing part ball The flexible position limiting structure of pen.Also, as schemed, the side of opening forms a protrusion, keeps fastening more reliable.

The side of slideway is formed with retainer with holes, and second connecting rod 43 passes through the retainer with holes；

In conjunction with aforementioned, the length that gap length is more than blood taking needle 1 subtracts the row that second connecting rod 43 radially slides in slideway Journey.

Such as figure, cradle head can select a pin-jointed structure, in a further embodiment, can also select and be formed in first One thin-wall construction of connecting rod and second connecting rod junction.

In conjunction with Fig. 6, blood taking needle 1 can be detachably connected by being formed in the female Luer of 2 front end of shell with shell 2.Another In outer embodiment, blood taking needle and shell can also be integrally formed and be made.

Such as Fig. 8, before blood sampling, shell is held on the other hand, presses buckling parts, disengages the fastening that limiting section is formed with buckling parts, Another hand pulls cap body along the directions arrow S1, is then rotated along the directions arrow S2 at cradle head, exposes syringe needle, you can into Row blood sampling, after the completion of blood sampling, first rotates according to opposite process and pushes cap body again, can be easy to blood taking needle penetrating sealing element In.It can be completed within 1 second after blood sampling, the influence of outer bound pair vim and vigour sample is minimized.And in blood collection procedure, cap body one It directly connects together, prevent from losing or pollutes with shell.

Claims (9)

1. a kind of micro vim and vigour hemostix, which is characterized in that including：

One shell is formed with a connecting seat on the shell, a slideway, the side of the slideway is formed with inside the connecting seat It is formed with a limiting section；

The blood taking needle being connect with the shell；

One needle seal, including：To be arranged a cap body of the blood taking needle, the blind end of the cap body is embedded with a sealing The side of part, the cap body is equipped with a gap；

It is formed in a first connecting rod of the open end of cap body, the position of the formation other side opposite with the gap in cap body；

The second connecting rod that one end is connect by cradle head with the first connecting rod, the second connecting rod can be along the slideway diameters To sliding；And the other end of second connecting rod is formed with the buckling parts that a disengagable fastening can be formed with the limiting section.

2. micro vim and vigour hemostix as described in claim 1, which is characterized in that the material elastoplastic of the second connecting rod, The buckling parts is the tip of a hook formation of the other end for being formed in the second connecting rod.

3. micro vim and vigour hemostix as claimed in claim 2, which is characterized in that the limiting section is to be opened in connecting seat, even Circulation passage and the opening outside connecting seat.

4. micro vim and vigour hemostix as described in claim 1, which is characterized in that the sealing element is rubber stopper.

5. micro vim and vigour hemostix as described in claim 1, which is characterized in that the gap length is more than the blood taking needle Length subtracts the stroke that second connecting rod radially slides in slideway.

6. micro vim and vigour hemostix as described in claim 1, which is characterized in that the cradle head is a pin-jointed structure.

7. micro vim and vigour hemostix as described in claim 1, which is characterized in that the cradle head is a thin-wall construction.

8. micro vim and vigour hemostix as described in claim 1, which is characterized in that the blood taking needle is by being formed in housing forward end Female Luer be detachably connected with shell.

9. micro vim and vigour hemostix as described in claim 1, which is characterized in that the blood taking needle and shell one at Type.