CN203953671U - The blood sampling unit that a kind of blood back is visual - Google Patents
The blood sampling unit that a kind of blood back is visual Download PDFInfo
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- CN203953671U CN203953671U CN201420052270.2U CN201420052270U CN203953671U CN 203953671 U CN203953671 U CN 203953671U CN 201420052270 U CN201420052270 U CN 201420052270U CN 203953671 U CN203953671 U CN 203953671U
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- 210000004369 blood Anatomy 0.000 title claims abstract description 205
- 230000000007 visual effect Effects 0.000 title claims abstract description 67
- 238000010241 blood sampling Methods 0.000 title claims abstract description 44
- 229940030225 antihemorrhagics Drugs 0.000 claims abstract description 13
- 230000000025 haemostatic effect Effects 0.000 claims abstract description 13
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- 230000037237 body shape Effects 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 description 23
- 238000012360 testing method Methods 0.000 description 16
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
This utility model discloses the visual blood sampling unit of a kind of blood back, comprises needle holder, the visual blood taking needle assembly of blood back, and described needle holder has the cylindrical shell that can make blood taking tube stretch into, the visual blood taking needle assembly of described blood back comprises the needle stand being connected with needle holder, the pipe close puncture needle that is connected to the venipuncture needle that extend out to needle holder outside on needle stand and extend into described needle holder inside, the cutting tip of described venipuncture needle is provided with haemostatic sheath, described needle stand be provided with blood channel and only with the blood back cavity of described blood channel conducting, institute's blood channel and described venipuncture needle inner chamber and the conducting of described pipe close puncture needle inner chamber, described blood channel comprises venipuncture needle linkage section successively, blood back indication section, pipe close puncture needle linkage section, on described needle stand, blood back indication section position, place is arranged at the outside of described needle holder and is visible section or visual window is set.This utility model can be indicated whether success of puncture, and easy and simple to handle while using, and can avoid the risk of failure of taking a blood sample.
Description
Technical field
This utility model relates to a kind of needle holder, relates to or rather a kind of visual blood sampling unit of blood back that coordinates pen type blood collection to use.
Background technology
Hematology testing is to obtain Human Physiology, pathological information, for one of Main Means of correctly diagnosing the illness.Take vacuum blood collection system as auxiliary venous blood collection, because being difficult for being subject to the interference of the extraneous factors such as temperature, environment and human body peripheral circulation, can reflect exactly the truth of Whole Body blood, wider in clinical middle application.The vacuum blood collection system implementation that venous blood collection mainly consists of vacuum test tube and vein blood taking needle, wherein vein blood taking needle is mainly divided into hard connection blood taking needle (as pen type blood collection) and the blood taking needle that is flexible coupling (as butterfly wing blood taking needle) two large classes.
There are the following problems for blood taking needle of the prior art and needle holder:
1, hard connection blood taking needle of the prior art (being pen type blood collection), the problem because structure arranges, cannot judge whether to puncture successfully, and this makes troubles to medical personnel's work, and sufferer may be born larger pain simultaneously.
2, needle holder of the prior art, before blood sampling, needs medical personnel's being made by manufacturers or users firmly to connect blood taking needle (pen type blood collection), complex operation, and existence is not in place because assembling, and causes the failed risk of taking a blood sample.
Therefore, how prior art is improved, provided a kind of blood back visual blood sampling unit, use simple, convenient and can indicate whether success of blood sampling, this is the current technical issues that need to address in this area.
Utility model content
The purpose of this utility model is, provides a kind of blood back visual blood sampling unit, by structure is carried out to ingenious setting, simple, convenient during use, and whether can indicate puncture successful.
For solving above technical problem, the technical solution of the utility model is:
The blood sampling unit that blood back is visual, comprises needle holder, the visual blood taking needle assembly of blood back, and described needle holder has the cylindrical shell that can make blood taking tube stretch into, the visual blood taking needle assembly of described blood back comprises the needle stand being connected with needle holder, the pipe close puncture needle that is connected on needle stand and extend out to the venipuncture needle of described needle holder outside and extend into described needle holder inside, the cutting tip of described venipuncture needle is provided with haemostatic sheath, described needle stand be provided with blood channel and only with the blood back cavity of described blood channel conducting, institute's blood channel and described venipuncture needle inner chamber and the conducting of described pipe close puncture needle inner chamber, described blood channel comprises venipuncture needle linkage section successively, blood back indication section, pipe close puncture needle linkage section, on described needle stand, blood back indication section position, place is arranged at the outside of described needle holder and is visible section or visual window is set.In the technical program, on described needle stand, a blood back indication section position, place can be visible section, and this position is whole makes for transparent material or trnaslucent materials; Or this position is only a part of visual, and a visual window is set; The all sites that certainly also needle stand can be exposed in needle holder outside all adopts transparent material to make.In the technical program, due to blood back cavity only with blood channel conducting, when puncture, because vein blood taking needle penetrates in human vein, and the cutting tip of pipe close puncture needle is provided with haemostatic sheath, so blood back cavity and blood channel form confined space, this makes after puncture, the air compressing of confined space and the blood of human vein can be flowed out, and can make the blood of human vein no longer continue to flow out at the air compressing of confined space to a certain extent time, avoid entering into blood back cavity, also can make human vein blood flow out to the amount of the visual blood taking needle assembly of blood back suitable, can just in time be partially filled or all fill blood back indication section, but be unlikely to flow out too much, flow in blood back cavity.
Preferably, described needle stand comprises venipuncture needle needle stand, the pipe close puncture needle needle stand being connected together, described venipuncture needle needle stand middle part is connected with the middle part of described pipe close puncture needle and described blood channel is set, the edge clamping of described venipuncture needle needle stand edge and described pipe close puncture needle needle stand forms described blood back cavity between the inwall of junction, edge of described venipuncture needle and described pipe close puncture needle and the outer wall of junction, middle part.
Preferably, described venipuncture needle needle stand comprises the first center pedestal in the middle part of being positioned at and the first edge pedestal arranging around described the first center pedestal, and the sidewall of the lower end of described the first edge pedestal and described the first center pedestal separates gap and arranges, described venipuncture needle needle stand comprises the second center pedestal in the middle part of being positioned at and the second edge pedestal arranging around described the second center pedestal, and the sidewall of the upper end of described the second edge pedestal and described the first center pedestal separates gap and arranges, described the first center pedestal is connected with described the second center pedestal, the upper end clamping of the lower end of described the first edge pedestal and described the second edge pedestal, described the first center pedestal is provided with the first ladder hole, described the second center pedestal is provided with the second ladder hole, described the first ladder hole is communicated with the second ladder hole and forms described blood channel, the leading portion of described the first ladder hole is as described venipuncture needle linkage section, the stage casing of described the first ladder hole is as described blood back indication section, the back segment of described the first ladder hole is used for connecting described the second center pedestal, the hypomere of described the second ladder hole is as described pipe close puncture needle linkage section, after being connected with the second center pedestal, the back segment of described the first ladder hole forms a blood back gap.
Preferably, the volume sum of described blood back cavity and blood back gap, blood back indication section, the second ladder hole epimere is more than 250 cubic millimeters.
Preferably, described needle holder also connects a safety device, described safety device comprises and holds cavity, the described cavity that holds has the holding tank adapting with described venipuncture needle size, described holding tank has stretch into for described venipuncture needle uncovered, described one end that holds cavity is connected rotationally with described needle holder, and the other end and described needle holder are removably fixing.
Preferably, described in hold cavity one end and be provided with collar, described collar is socketed in the one end that connects venipuncture needle on described needle stand, described collar with described in to hold cavity hinged or be connected by the portion of flexibly connecting.
Preferably, on described collar near described in hold cavity one end be provided with flange, described in hold cavity sidewall be provided with the hook pawl coordinating with described flange.
Preferably, described in hold the one end being removably connected with described needle holder on cavity and be provided with tail point, the corresponding position on described needle holder is provided with groove, described tail point extend into described in realizing in described groove and holds removably connecting of cavity and described needle holder.
Preferably, in described holding tank, be provided with the screens for clamping blood taking needle venipuncture end.
Preferably, the opening part of described cylindrical shell is provided with the finger gripping for finger and holds portion, the described finger portion of holding serve as reasons sidewall extending and the cone cylinder body shape structure that forms laterally of described cylindrical shell.
Preferably, outer surface and the subtended angle of described cylindrical shell on the two shaft section that described finger is held portion are A, and A meets: 90 °≤A≤150 °, the subtended angle of the inner surface that described finger is held portion on shaft section is B, and B meets: B≤150 °.
Preferably, the cutting tip of described venipuncture needle is provided with sheath.
Compared with prior art, the blood sampling unit that this utility model blood back is visual, owing to comprising needle holder, the visual blood taking needle assembly of blood back, described needle holder has the cylindrical shell that can make blood taking tube stretch into, the visual blood taking needle assembly of described blood back comprises the needle stand being connected with needle holder, the pipe close puncture needle that is connected to the venipuncture needle that extend out to described needle holder outside on needle stand and extend into described needle holder inside, the cutting tip of described venipuncture needle is provided with haemostatic sheath, described needle stand be provided with blood channel and only with the blood back cavity of described blood channel conducting, institute's blood channel and described venipuncture needle inner chamber and the conducting of described pipe close puncture needle inner chamber, described blood channel comprises venipuncture needle linkage section successively, blood back indication section, pipe close puncture needle linkage section, on described needle stand, blood back indication section position, place is arranged at the outside of described needle holder and is transparent visual portion, thereby can when puncture, by observation, expose in the blood back of needle holder outside is indicated section and whether have blood to judge whether vein punctures successfully, if there is blood, represent to puncture successfully, the puncture of need not requiring great effort again, save the puncture time on the one hand, alleviate on the other hand the sufferer pain that bad puncture dynamics causes because medical personnel hold, simultaneously because needle holder and the visual blood taking needle assembly of blood back link together, thereby before blood sampling, do not need medical personnel's being made by manufacturers or users blood taking needle (pen type blood collection) again, easy and simple to handle, avoid because assembling the blood sampling risk of failure causing not in place.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of the visual blood sampling unit embodiment of blood back of the present utility model;
Fig. 2 is the overall structure figure at visual another visual angle of blood sampling unit of blood back in Fig. 1;
Fig. 3 is the decomposition texture schematic diagram of the visual blood sampling unit of blood back in Fig. 1;
Fig. 4 is the sectional side view of the visual blood sampling unit of blood back in Fig. 1;
Fig. 5 is the cross-sectional side elevational view of needle holder in Fig. 1;
Fig. 6 is the cross-sectional side elevational view of the visual blood taking needle assembly of blood back in Fig. 1;
Fig. 7 is the decomposition texture schematic diagram of Fig. 6;
Fig. 8 is the structural representation of safety device in Fig. 1;
Fig. 9 is the structural representation at another visual angle of safety device in Fig. 1;
Figure 10 is in Fig. 1 before the puncture of the visual blood sampling unit of blood back and the schematic diagram that coordinates of vein;
Figure 11 is that in Fig. 1, the visual blood sampling unit of blood back punctures afterwards and the schematic diagram that coordinates of vein;
Figure 12 be in Fig. 1 during the blood sampling of the visual blood sampling unit of blood back with the schematic diagram that coordinates of vein, blood taking tube;
Figure 13 is that in Fig. 1, the visual blood sampling unit of blood back is taken a blood sample afterwards and the schematic diagram that coordinates of vein;
Figure 14 is the structural representation of the rear blood taking tube of blood sampling in Figure 12;
Figure 15 is the cooperation schematic diagram of visual blood sampling unit needle holder, the visual blood taking needle assembly of blood back, the safety device after blood sampling of blood back in Fig. 1.
The specific embodiment
For making the technical solution of the utility model clearer, below in conjunction with accompanying drawing, by specific embodiment, this utility model is elaborated.
Below in conjunction with Fig. 1～Fig. 9, structure and the assembly relation thereof of each parts in the visual blood sampling unit of the present embodiment blood back are elaborated.
As shown in Figure 1 to 4, the visual blood sampling unit 100 of blood back in the present embodiment, its assembly comprises needle holder 200, the visual blood taking needle assembly 300 of blood back, safety device 400, haemostatic sheath 500, intravenous needle sheath 600.Wherein, one end of needle holder is used for connecting the visual blood taking needle assembly of blood back, and the venipuncture needle in the visual blood taking needle assembly of blood back stretches out from this end of needle holder, and the pipe close puncture needle in the visual blood taking needle assembly of blood back extend into needle holder inside; The needle holder other end is provided with the opening entering for blood taking tube, and during blood sampling, blood taking tube from then on opening enters into needle holder, and the pipe close of blood taking tube is arranged on needle holder inside by pipe close needle pierces; Safety device 400 is arranged on the outside of needle holder 200, and one end of safety device 400 is connected the visual blood taking needle assembly of blood back one end with needle holder 200 connects rotationally, and the other end is removably connected with the opening of needle holder.Haemostatic sheath 500 is sheathed on needle holder inside, for being set in the cutting tip of coated pipe close puncture needle on pipe close puncture needle; Venipuncture sheath 600 is set on the venipuncture needle in the visual blood taking needle assembly of blood back, and its cutting tip is coated.
As shown in Figure 5, needle holder 200 comprises the Connection Block 230 that the cylindrical circular cylindrical shell 220 of cardinal principle, the finger being connected with cylindrical shell 220 openings are held portion 210, are connected with the cylindrical shell other end.Wherein, cylindrical shell 220 has the inner chamber 221 that holds vacuum test tube sealing cap, referring to hold portion 210 is extended and forms to its sidewall outside by the opening of cylindrical shell 220, refer to that holding portion's 210 outer surfaces and the cylindrical shell 220 lateral walls subtended angle on the two shaft section is A, refer to that holding the subtended angle of portion's 210 inner surfacies on shaft section is B, preferably A meets: 90 °≤A≤150 °, preferably B meets: B≤150 °; Connection Block 230 is for connecting the visual blood taking needle assembly of blood back, and it is positioned at one end relative with opening on cylindrical shell; At cylindrical shell 220 outer walls, be provided with a groove 211 with referring to the inner side, top of holding portion 210, for being removably connected with safety device.
As shown in Figure 6, Figure 7, the visual blood taking needle assembly 300 of blood back comprises the pipe close puncture needle needle stand 310 that is connected together, venipuncture needle needle stand 320, the pipe close puncture needle 330 being connected with pipe close puncture needle needle stand 310, the venipuncture needle 340 being connected with venipuncture needle stand.Wherein, pipe close puncture needle needle stand 310 and venipuncture needle needle stand 320 are all axial symmetry ring-type structures, and the two all has ladder hole at axle center place, wherein, the through hole of pipe close puncture needle needle stand 310 is comprised of 311He hole, hole 312, and the diameter in hole 312 is less than the diameter in hole 311; The through hole of venipuncture needle needle stand 320 is comprised of hole 321,322He hole, hole 323 successively, and wherein, the diameter in hole 321 is less than the diameter in hole 323, but is greater than the diameter in hole 322.The pipe close puncture needle 330 of tubulose has tube chamber 334, and its butt 331 is fixed in the hole 311 of pipe close puncture needle needle stand 310, and the outer wall 333 of pipe close puncture needle 330 keeps airtight with inwall 313 junctions in hole 311; The venipuncture needle 340 of tubulose has tube chamber 344, and its butt 341 is fixed in the hole 321 of venipuncture needle needle stand 320, and the outer wall 343 of venipuncture needle 340 keeps airtight with inwall 324 junctions in hole 321.The annular wall 315 of pipe close puncture needle needle stand 310, in the groove that annular wall 325 in venipuncture needle needle stand 320 and annular wall 326 form, and the end face 316 of annular wall 315, with groove inner surface 327, by physics or/and chemical mode closely link together and guarantee that junction is airtight.The pipe close puncture needle needle stand 310 and the venipuncture needle needle stand 320 that link together have roughly the same axle center, a cavity 350 of the two inner formation.Between hole 323 and pipe close puncture needle needle stand 310, there is gap 360, by gap 360, hole 312, hole 322, between tube chamber 344 threes of the tube chamber 334 of cavity 350, pipe close puncture needle 330, venipuncture needle 340, be communicated with.The volume sum in cavity 350, gap 360, hole 312, hole 322 is not less than 250 cubic millimeters.
As shown in Figure 8, Figure 9, safety device 400 comprises and holds cavity 410 for what hold venipuncture needle, holding cavity is provided with for holding the holding tank of venipuncture needle and the structure being connected with other assemblies (the present embodiment is needle holder 200 and the visual blood taking needle assembly 300 of blood back) of blood specimen collecting needle 100, as collar 420, tail point 460, and latch-up structure, as flange 430, hook pawl 440, screens 450; Wherein, hold cavity and be substantially long box body shape, a side of its length direction is opening end, for after blood sampling on for venipuncture needle, enter into holding tank while digging; The one end that holds cavity is also provided with gap, and the bottom of this opening position is connected with collar 420 is rotating, and collar 420 is connected on the venipuncture needle needle stand of the visual blood taking needle assembly of blood back; Two hook pawls 440 and are located at respectively on two sidewalls of this opening position, when holding cavity 410 and upwards dig, hook pawl 440 and can catch on the flange 430 arranging on collar 420, make to hold cavity 410 can afterbody being fixed on needle holder upward; Screens 450 is arranged in holding tank, for after entering holding tank at venipuncture needle by its clamping; Tail point 460 is arranged on the afterbody that holds cavity 410, before blood sampling and in blood sampling, holds and in cavity 410 is inserted into needle holder cylindrical shell outside groove 211 by tail point 460, realizes and the fixing of needle holder.
As shown in Figure 4, in the present embodiment, the visual blood taking needle assembly 300 of blood back connects the Connection Block 230 of needle holder 200 by pipe close puncture needle needle stand 310 Rhizoma Nelumbinis, and the two is assembled into, the inside of the cutting tip 332 of pipe close puncture needle 330 in needle holder 200 cylindrical shells 220, and near the central shaft in cylindrical shell 220, safety device 400 is of coupled connections by its collar 420 and the venipuncture needle needle stand 320 of the visual blood taking needle assembly 300 of blood back, the groove 211 of holding in portion 210 by the finger of its tail point 460 and needle holder 200 is assembled together, and the cavity 410 that holds of safety device 400 can rotate by the central shaft of the visual blood taking needle assembly 300 of collar 420 wraparound blood, and keep tail point 460 in needle holder 200 fingers are held the groove 211 of portion 210, the tail point 460 that holds cavity 410 can spin off from groove 211, and hold cavity owing to adopting the portion of flexibly connecting to be connected with collar, thereby to hold cavity can this portion of flexibly connecting be that rotating shaft is rotated to the direction near the visual blood taking needle assembly of blood back, turn to afterbody upward, haemostatic sheath 500 is preferably rubber elastic material, and pipe close puncture needle 330 is entangled in axle center with one heart and Rhizoma Nelumbinis is connected on pipe close puncture needle needle stand 310, and haemostatic sheath 500 keeps sealing in junction with pipe close puncture needle needle stand 310, venipuncture needle 340 is entangled in intravenous needle sheath 600 axle center with one heart and Rhizoma Nelumbinis is connected on venipuncture needle needle stand 320.
Below in conjunction with vacuum test tube, the work use procedure of the visual blood sampling unit 100 of the blood back of the present embodiment is described in detail.
Blood specimen collecting needle 100 before use, venipuncture needle 340 is entangled in venipuncture needle shield 600 axle center with one heart and Rhizoma Nelumbinis is connected on venipuncture needle needle stand 320, avoid blood specimen collecting needle 100 in transportation, store, blood sampling cause is touched damage venipuncture needle needle point makes its rust, causes puncture difficulty or by Nurses venous injury.
As shown in figure 10, while preparing blood sampling, remove venipuncture needle shield 600, now, the tube chamber 334 of the cavity 350 being communicated with, gap 360, hole 312, hole 322, pipe close puncture needle 330, tube chamber 344 by venipuncture needle 340 is set up air communication with the external world, and pressure equates everywhere, is external air pressure.
As shown in figure 11, when cutting tip 342 puncture human vein 800 success of venipuncture needle 340, because human vein blood pressure is higher than atmospheric pressure, air in cavity 350, gap 360, hole 312, hole 322, tube chamber 334 and tube chamber 344 is subject to vein pressure effect compressed, and human vein blood 810 enters the visual blood taking needle assembly of blood back 300 inside through tube chamber 344.When the air in being enclosed in cavity 350, gap 360, hole 312, hole 322, tube chamber 334 and tube chamber 344 is compressed into pressure and equates with human vein blood pressure, human vein blood stops entering the visual blood taking needle assembly of blood back 300 inside, now, the blood that enters the visual blood taking needle assembly of blood back 300 inside is full of tube chamber 344 completely, and be partially filled or be full of hole 322, further may be partially filled gap 360, hole 312 and tube chamber 334, but blood can not flow into cavity 350.Because venipuncture needle needle stand 320 is made for transparent material, Nurses is easy to see through the backflow blood that venipuncture needle needle stand is observed 322 places, hole.It is pointed out that above-mentioned blood back process is actually instantaneous and completes.
Therefore,, there is backflow blood if moment is observed 322 places, hole in the cutting tip 342 puncture human vein blood vessels by venipuncture needle 340, shows venipuncture success, if 322 places, hole have no backflow blood, shows venipuncture failure.
As shown in figure 12, at venipuncture needle 340, successfully pierce through by Nurses vein, instantaneously in the visual blood taking needle assembly 300 of blood back there is blood back indication, the sealing cap of the blood taking tube of preset vacuum (hereinafter referred to as vacuum test tube) 700 710 ends can be inserted in the cylindrical shell 220 of needle holder 200, and vacuum test tube 700 and sealing cap 710 thereof are moved on to pipe close puncture needle 330 directions along cylindrical shell 220 inner chambers 221, afterwards, material is the caulking gum 711 at haemostatic sheath 500 contact sealing cap 710 middle parts of gum elastic, the cutting tip 332 of pipe close puncture needle 330 pierces through haemostatic sheath 500, haemostatic sheath 500 elastic shrinkage, the cutting tip 332 of pipe close puncture needle 330 continues the caulking gum 711 of puncture through seal cap 710, at this moment, the cutting tip 332 of pipe close puncture needle 330 stretches into vacuum test tube 700 inside.
Cutting tip 332 at pipe close puncture needle 330 stretches into behind vacuum test tube 700 inside, and human vein 800 is set up fluid by the tube chamber 344, hole 322, gap 360, hole 312, the tube chamber 334 that axially communicate with vacuum test tube 700 and is communicated with.Due to the suction function of vacuum test tube 700, human vein blood 810 just flows in vacuum test tube 700 through tube chamber 344, hole 322, gap 360, hole 312, tube chamber 334.After obtaining the blood sampling volume needing, vacuum test tube 700 is outwards extracted along needle holder 200 cylindrical shells 220, the cutting tip 332 of pipe close puncture needle 330 is also extracted from the caulking gum 711 of sealing cap 710, caulking gum 711 moment sealed vacuum blood taking tube 700 reaches the object of preserving blood preparation, simultaneously, haemostatic sheath 500 resiliences, also moment keeps airtight after again covering the cutting tip 332 of pipe close puncture needle 330, the internal pressure of the visual blood taking needle assembly 300 of blood back is returned to venous pressure and equates, path inner blood stops flowing.To the interior continuation of needle holder 200, insert new vacuum test tube, just can realize the collection of blood multitube.
In above-mentioned blood collection procedure, owing to referring to that the portion of holding 210 and guiding sidewall 220 have certain subtended angle, can provide and well hold comfort to Nurses, owing to referring to that holding portion's 210 inner surfacies also has certain subtended angle, facilitate vacuum test tube 700 to insert cylindrical shell 220 simultaneously.Sealing cap 710 at vacuum test tube 700 inserts in the process of needle holder sidewall 220, and pipe close puncture needle 330 vertically inserts sealing rubber plug 711 and finally penetrates sealing-plug 711 at the medium position of sealing cap 710.Cylindrical shell 220 is transparent material, can facilitate medical personnel in blood collection procedure, to observe situation and the blood sampling process of pipe close puncture needle 330 puncture vacuum test tubes 700.
As shown in Figure 13～Figure 15, after last pipe blood collection, venipuncture needle 340 is extracted from person of blood collecting's vein 800, then manually make the tail point 460 of safety device 400 from needle holder 200 fingers, hold in the groove 211 of portion 210, by rotation, make to hold cavity 410 integral body close to venipuncture needle 340, venipuncture needle 340 enters into the holding tank that holds cavity, and final completely coated whole venipuncture needle 340, now hook pawl 440 and firmly fasten flange 430, venipuncture needle 340 is blocked in screens 450.The coated venipuncture needle of safety device 400 340 the latter two can not or not easily separated, avoid or reduced needle point exposure, the blood after blood sampling oozing, prevent Nurses, by Nurses and sharp instrument treatment people, be subject to acupuncture accident and injure, prevent that blood specimen collecting needle 100 from being used by secondary simultaneously.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, within not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. the visual blood sampling unit of blood back, is characterized in that, comprises needle holder, the visual blood taking needle assembly of blood back, and described needle holder has the cylindrical shell that can make blood taking tube stretch into, the visual blood taking needle assembly of described blood back comprises the needle stand being connected with needle holder, the pipe close puncture needle that is connected on needle stand and extend out to the venipuncture needle of described needle holder outside and extend into described needle holder inside, the cutting tip of described venipuncture needle is provided with haemostatic sheath, described needle stand be provided with blood channel and only with the blood back cavity of described blood channel conducting, institute's blood channel and described venipuncture needle inner chamber and the conducting of described pipe close puncture needle inner chamber, described blood channel comprises venipuncture needle linkage section successively, blood back indication section, pipe close puncture needle linkage section, on described needle stand, blood back indication section position, place is arranged at the outside of described needle holder and is visible section or visual window is set, described needle stand comprises venipuncture needle needle stand, the pipe close puncture needle needle stand being connected together, the middle part of described venipuncture needle needle stand is connected with the middle part of described pipe close puncture needle and described blood channel is set, the edge clamping of described venipuncture needle needle stand edge and described pipe close puncture needle needle stand forms described blood back cavity between the inwall of junction, edge of described venipuncture needle and described pipe close puncture needle and the outer wall of junction, middle part, the volume sum of described blood back cavity and blood back gap, blood back indication section, the second ladder hole epimere is more than 250 cubic millimeters.
2. the visual blood sampling unit of blood back as claimed in claim 1, it is characterized in that, described venipuncture needle needle stand comprises the first center pedestal in the middle part of being positioned at and the first edge pedestal arranging around described the first center pedestal, and the sidewall of the lower end of described the first edge pedestal and described the first center pedestal separates gap and arranges, described venipuncture needle needle stand comprises the second center pedestal in the middle part of being positioned at and the second edge pedestal arranging around described the second center pedestal, and the sidewall of the upper end of described the second edge pedestal and described the first center pedestal separates gap and arranges, described the first center pedestal is connected with described the second center pedestal, the upper end clamping of the lower end of described the first edge pedestal and described the second edge pedestal, described the first center pedestal is provided with the first ladder hole, described the second center pedestal is provided with the second ladder hole, described the first ladder hole is communicated with the second ladder hole and forms described blood channel, the leading portion of described the first ladder hole is as described venipuncture needle linkage section, the stage casing of described the first ladder hole is as described blood back indication section, the back segment of described the first ladder hole is used for connecting described the second center pedestal, the hypomere of described the second ladder hole is as described pipe close puncture needle linkage section, after being connected with the second center pedestal, the back segment of described the first ladder hole forms a blood back gap.
3. the visual blood sampling unit of blood back as claimed in claim 1, it is characterized in that, described needle holder also connects a safety device, described safety device comprises and holds cavity, the described cavity that holds has the holding tank adapting with described venipuncture needle size, described holding tank has stretch into for described venipuncture needle uncovered, described in hold cavity one end be connected rotationally with described needle holder, the other end and described needle holder are removably fixing.
4. the visual blood sampling unit of blood back as claimed in claim 3, it is characterized in that, the described cavity one end that holds is provided with collar, and described collar is socketed in the one end that connects venipuncture needle on described needle stand, described collar with described in to hold cavity hinged or be connected by the portion of flexibly connecting.
5. the visual blood sampling unit of blood back as claimed in claim 4, is characterized in that, on described collar near described in hold cavity one end be provided with flange, described in hold cavity sidewall be provided with the hook pawl coordinating with described flange.
6. the visual blood sampling unit of blood back as claimed in claim 3, it is characterized in that, the described one end being removably connected with described needle holder on cavity that holds is provided with tail point, corresponding position on described needle holder is provided with groove, and described tail point extend in described groove and holds removably connecting of cavity and described needle holder described in realization.
7. the visual blood sampling unit of blood back as claimed in claim 3, is characterized in that, is provided with the screens for clamping blood taking needle venipuncture end in described holding tank.
8. the visual blood sampling unit of blood back as claimed in claim 1, it is characterized in that, the opening part of described cylindrical shell is provided with the finger gripping for finger and holds portion, the described finger portion of holding serve as reasons sidewall extending and the cone cylinder body shape structure that forms laterally of described cylindrical shell, outer surface and the subtended angle of described cylindrical shell on the two shaft section that described finger is held portion are A, A meets: 90 °≤A≤150 °, the subtended angle of the inner surface that described finger is held portion on shaft section is B, and B meets: B≤150 °.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052270.2U CN203953671U (en) | 2014-01-26 | 2014-01-26 | The blood sampling unit that a kind of blood back is visual |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052270.2U CN203953671U (en) | 2014-01-26 | 2014-01-26 | The blood sampling unit that a kind of blood back is visual |
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| CN203953671U true CN203953671U (en) | 2014-11-26 |
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| CN201420052270.2U Expired - Lifetime CN203953671U (en) | 2014-01-26 | 2014-01-26 | The blood sampling unit that a kind of blood back is visual |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110441A (en) * | 2017-12-12 | 2018-06-01 | 杭州华春科技有限公司 | Clip punctures electricity getting device |
| CN108272460A (en) * | 2018-03-20 | 2018-07-13 | 中国人民解放军总医院 | Fingerstall for vacuum blood collection tube |
| CN110833424A (en) * | 2019-11-05 | 2020-02-25 | 曹春荣 | Blood taking needle recovery device and assembly thereof |
| CN111856988A (en) * | 2020-06-05 | 2020-10-30 | 哈工大机器人(中山)无人装备与人工智能研究院 | Motion control method and device of blood sampling device |
| CN111991009A (en) * | 2020-06-10 | 2020-11-27 | 四川大学华西医院 | Blood sampling device and using method thereof |
| WO2023039744A1 (en) * | 2021-09-15 | 2023-03-23 | 福州康利特医疗器械有限公司 | Blood sampling needle holder having swinging covering device |
-
2014
- 2014-01-26 CN CN201420052270.2U patent/CN203953671U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110441A (en) * | 2017-12-12 | 2018-06-01 | 杭州华春科技有限公司 | Clip punctures electricity getting device |
| CN108110441B (en) * | 2017-12-12 | 2024-01-23 | 杭州华春科技有限公司 | Clip type puncture electricity taking device |
| CN108272460A (en) * | 2018-03-20 | 2018-07-13 | 中国人民解放军总医院 | Fingerstall for vacuum blood collection tube |
| CN108272460B (en) * | 2018-03-20 | 2023-05-12 | 中国人民解放军总医院 | Finger stall for vacuum blood collection tube |
| CN110833424A (en) * | 2019-11-05 | 2020-02-25 | 曹春荣 | Blood taking needle recovery device and assembly thereof |
| CN111856988A (en) * | 2020-06-05 | 2020-10-30 | 哈工大机器人(中山)无人装备与人工智能研究院 | Motion control method and device of blood sampling device |
| CN111991009A (en) * | 2020-06-10 | 2020-11-27 | 四川大学华西医院 | Blood sampling device and using method thereof |
| WO2023039744A1 (en) * | 2021-09-15 | 2023-03-23 | 福州康利特医疗器械有限公司 | Blood sampling needle holder having swinging covering device |
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Address after: 519031 office 2320, No. 3000, Huandao East Road, Hengqin new area, Zhuhai, Guangdong Patentee after: Yangpu Medical Technology Co.,Ltd. Address before: 510000 Kaiyuan Avenue 102, Science City, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee before: GUANGZHOU IMPROVE MEDICAL TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20141126 |