A kind of infant's blood taking needle
Technical field
The utility model relates to medical instruments fields, and in particular to a kind of infant's blood taking needle.
Background technique
Blood sampling chemical examination is the common inspection item of hospital, inspection result be used as the diagnosis state of an illness it is important according to
According to the venous blood collection tool being commonly used at present is vacuum blood collector comprising bidirectional blood taking needle, needle holder and vacuum blood collection
Pipe, this vacuum blood collector have the following problems when in use:
1, when object of taking a blood sample is infant, due to infant's unconsciousness, restless etc., degree of cooperation is past when blood sampling
It is past lower, and existing bidirectional blood taking needle is steel needle, and the case where blood taking needle is swung is easy to appear when puncturing and when blood drawing, it is this
Swing will lead to damage of the blood taking needle needle point to blood vessel, when the limb activity amplitude for mismatching patient is larger, cause to blood vessel
Damage it is bigger, even result in blood sampling failure;
It 2, can be by vacuum after existing vacuum blood collector needs first to connect bidirectional blood taking needle and needle holder before blood drawing
It is connected in heparin tube insertion needle holder and with blood taking needle, operation so more wastes time, and reduces the work effect of medical staff
Rate.
In addition, the negative pressure amount due to vacuum blood collection tube is arranged according to blood sampling volume, before blood sampling terminates, due to unclamping
Binding strap, intravascular pressure reduce rapidly, and hemostix does not exit blood vessel also at this time, and vacuum blood collection tube internal pressure be greater than it is intravascular
Pressure, it is possible to the blood having taken up be caused to return intravascular and risk of infection occurs.
Utility model content
The utility model aim is: being directed to when using existing vacuum blood collector to infant's venous blood collection, due to baby
Child's degree of cooperation is lower to be led to blood taking needle needle point damage blood vessel or even takes a blood sample to fail, and the vacuum blood collector is needed before blood drawing
The problem of being first attached bidirectional blood taking needle and needle holder, operating waste time in this way, reduce medical staff's working efficiency, mentions
It also can be avoided blood taking needle needle point to blood in the lower situation of object degree of cooperation of taking a blood sample for a kind of infant's blood taking needle
The damage of pipe, while the connection of do not need that blood was collected before taking a blood sample needle and needle holder, can effectively improve the work effect of medical staff
Rate.
To achieve the goals above, the technical solution adopted in the utility model are as follows:
A kind of infant's blood taking needle, including soft conduit and the needle core being placed in conduit, the rear end of conduit is equipped with conduit
Seat, the catheter block side wall are equipped with the soft extension tube communicated with conduit, and the extension pipe end is connected with needle holder, described to hold needle
The needle tubing communicated with extension tube is equipped in device.
Catheter block is arranged by the way that soft conduit and needle core, rear end of conduit is arranged in the utility model, and the setting of catheter block side wall is soft
Matter extension tube extends pipe end and is connected with needle holder, and is equipped with the needle tubing communicated with extension tube in needle holder, and when use first uses needle
It is sent into blood vessel after core is punctured and by conduit, then vacuum blood collection tube is inserted into needle holder and can be into after being connected to needle tubing
Row blood drawing is soft conduit due to being placed in patient's blood vessel, and is connected between conduit and needle holder using soft extension tube flexibility
Connect, can to avoid when patient limb activity to blood vessel cause damage and take a blood sample fail, simultaneously because the conduit by catheter block,
Extension tube is connected with needle holder is connected in entirety, does not need to carry out assembly and connection again before blood sampling, can effectively improve the work of medical staff
Make efficiency.
As a preferred embodiment of the present invention, the extension tube is equipped with Medical check valve.By being set in extension tube
Medical check valve is set, can be flowed back into again to avoid the blood being had taken up after unclamping binding strap intravascular and infection danger occurs
Danger.
As a preferred embodiment of the present invention, the extension length of tube is 15~20mm.By the length for controlling extension tube
Degree, the waste of blood when advantageously reducing blood drawing.
As a preferred embodiment of the present invention, needle holder end outer wall is equipped with and stops along the limit that two sides are symmetrically extended
Mouthful.By the way that limit seam allowance is arranged in needle holder end, after living needle holder with two finger clamps, which can be to avoid adopting
Needle holder falls off from hand when blood.
As a preferred embodiment of the present invention, the needle holder port is covered with protective layer, can be to avoid in needle holder
Needle tubing be contaminated.
As a preferred embodiment of the present invention, the protective layer is dialyzing paper.The dialyzing paper can permit such as EO ring
Oxidative ethane sterilizing or the STEAM high-temp steam sterilizing factor penetrate, and outside by bacterium blocking, it can be convenient and processed in blood taking needle
Whole sterilization is carried out after the completion.
As a preferred embodiment of the present invention, the dialysis paper edge is equipped with convenient for tearing the edge wing of the dialyzing paper.
As a preferred embodiment of the present invention, the needle holder outer wall is additionally provided with non-slip texture.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, catheter block, the setting of catheter block side wall is arranged by the way that soft conduit and needle core, rear end of conduit is arranged in the utility model
Soft extension tube extends pipe end and is connected with needle holder, and is equipped with the needle tubing communicated with extension tube in needle holder, and when use first uses
It is sent into blood vessel after needle core is punctured and by conduit, then vacuum blood collection tube is inserted into needle holder and after being connected to needle tubing
It draws blood, is soft conduit due to being placed in patient's blood vessel, and is flexible using soft extension tube between conduit and needle holder
Connection can cause to damage and take a blood sample to fail, simultaneously because the conduit passes through conduit to avoid when patient limb activity to blood vessel
Seat, extension tube are connected with needle holder and are connected in entirety, do not need to carry out assembly and connection again before blood sampling, can effectively improve medical staff's
Working efficiency;
It 2, can be to avoid the blood being had taken up after unclamping binding strap again by the way that Medical check valve is arranged in extension tube
It flows back into intravascular and risk of infection occurs;
3, by that can be contaminated to avoid the needle tubing in needle holder in needle holder port covered protection layer, and the protection
Layer is dialyzing paper, can permit such as EO ethylene oxide sterilizing or the STEAM high-temp steam sterilizing factor penetrates, and bacterium is hindered
It is convenient to carry out whole sterilization after processing is completed in blood taking needle outside being interposed between.
Detailed description of the invention
Fig. 1 is infant's blood taking needle overall schematic in the utility model.
Marked in the figure: 1- conduit, 2- catheter block, 21- batching pig, 3- needle core, the 31- needle wing, 4- extension tube, 5- check valve,
6- needle holder, 61- limit seam allowance, 7- needle tubing, 71- needle tubing seat, 8- dialyzing paper, the 81- edge wing.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
Embodiment
The utility model provides a kind of infant's blood taking needle;
As shown in Figure 1, infant's blood taking needle in the present embodiment, including the soft needle core 3 conduit 1 and be placed in conduit 1,
3 end of needle core is connected with the needle wing 31, is punctured and removed needle convenient for the hand-held needle wing, and 1 rear end of conduit is equipped with catheter block 2,
It is equipped with batching pig 21 in the catheter block 2, the batching pig 21 can avoid liquid leakage after needle core 3 is withdrawn from self-closed,
2 side wall of catheter block is equipped with the soft extension tube 4 communicated with conduit 1, and 4 end of extension tube is connected with needle holder 6, this holds needle
Device is syringe-shaped structure, is equipped with the needle tubing 7 communicated with extension tube 4 in the needle holder 6, the needle tubing 7 is by needle tubing seat 71
It is mounted in needle holder 6.In addition, the conduit is connected with needle holder by catheter block, extension tube and is connected in entirety, it is not required to before blood sampling
Assembly and connection is carried out again, can effectively improve the working efficiency of medical staff.Since infant's blood vessel is thinner, thus the conduit can
With the damage using the soft conduit of thinner specification, with reduction to blood vessel.
In the present embodiment, the extension tube 4 is equipped with Medical check valve 5, which needs to pay attention to installation side when installing
To needing to guarantee that blood flows to vacuum blood collection tube from blood vessel.By the way that Medical check valve is arranged in extension tube, can to avoid
The blood having taken up after binding strap is unclamped to flow back into again intravascular and risk of infection occurs.
In the present embodiment, the length of the extension tube 4 is 15~20mm, can use soft medical transparent PVC material
Material is made.By controlling the length of extension tube, the waste of blood when advantageously reducing blood drawing.
In the present embodiment, the 6 end outer wall of needle holder is equipped with the limit seam allowance 61 being symmetrically extended along two sides.By holding
Needle device end setting limit seam allowance, after living needle holder with two finger clamps, which can be to avoid needle holder when blood sampling
It falls off from hand.
In the present embodiment, 6 port of needle holder is covered with protective layer, can be to avoid the needle tubing in needle holder by dust
Or the pollution such as other impurities.In the present embodiment, the protective layer is dialyzing paper 8, which can permit such as EO epoxy
Ethane sterilizing or the STEAM high-temp steam sterilizing factor penetrate, and outside by bacterium blocking, it can be convenient and processed in blood taking needle
At the whole sterilization of rear progress.
In the present embodiment, 8 edge of dialyzing paper is equipped with convenient for tearing the edge wing 81 of the dialyzing paper, which extends to
Outside needle holder end, it that is to say that whole dialysis paper size is suitable with needle holder end area, and the edge wing is more than needle holder side
The part of edge.In addition, the needle holder outer wall in the present embodiment is additionally provided with non-slip texture, which can hold needle for processing
Helix on device outer wall.
Catheter block is arranged by the way that soft conduit and needle core, rear end of conduit is arranged in the present embodiment, and the setting of catheter block side wall is soft
Extension tube extends pipe end and is connected with needle holder, and is equipped with the needle tubing communicated with extension tube in needle holder, and when use first uses needle core
It is sent into blood vessel after being punctured and by conduit, then vacuum blood collection tube is inserted into needle holder and can be carried out after being connected to needle tubing
Blood drawing is soft conduit due to being placed in patient's blood vessel, and the flexible connection of soft extension tube is used between conduit and needle holder,
Blood vessel can be caused to damage and take a blood sample to fail to avoid when patient limb activity, simultaneously because the conduit passes through catheter block, prolongs
Long tube is connected with needle holder is connected in entirety, does not need to carry out assembly and connection again before blood sampling, can effectively improve the work of medical staff
Efficiency.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc. within the principle of utility model, should be included in the protection of the utility model
Within the scope of.