CN209421945U - Children's blood pump - Google Patents

Abstract

The utility model relates to a kind of children's hemospasts, including the first needle body, first needle body and the second needle body are connected by conduit, the conduit is connected with calparine cap by branch pipe, bottle cap device is equipped with outside second needle body, bottle cap device is connected with vacuum blood collection tube, the utility model is designed for children, because children's blood vessel is thinner, it can be very good whether the first needle body of observation is pierced into children's internal blood vessel using the present apparatus, convenient for operation, reduce patient because repeatedly puncturing bring pain, the utility model is easy to operate, structure is simple, it can easily be accommodated, with extensive market prospects.

Description

Children's blood pump

technical field

The utility model relates to the medical field, in particular to a blood pump for children.

Background technique

Disposable venous blood collection device consists of collection needle assembly (including protective cap, collection needle, needle wing, collection needle seat, hose, hose seat) and puncture needle assembly (including puncture needle, puncture needle seat, puncture needle cover , puncture needle cap) composition. The disposable safety lock venous blood collection device adds a safety lock on the basis of all the basic components of the single use venous blood collection device. For the blood collection device with Safety-Lok, after the blood collection is completed, the yellow transparent safety cover at the end of the collection needle can be pushed forward along the slideway to the bayonet of the slideway, so that the collection needle is completely locked. Under normal conditions, the collection needle will not come out again, and it has the property of avoiding accidental puncture.

Most of the venous blood collection devices currently on the market are designed for adults. Because of the thin blood vessels of children, it is difficult to see whether the venous blood collection device designed for adults is punctured into the children's venous blood vessels. Capillary bleeding can also enter the catheter through the blood collection needle, and because children's blood vessels are thin and return slowly, even experienced technicians often make mistakes and perform multiple punctures when collecting blood samples for children. Traditional venous blood collection devices It is troublesome to use, and the venous blood collection device sold on the market does not have an auxiliary device for observing blood backflow, so it is inconvenient to use for children's puncture blood collection.

Therefore, providing a blood drawer for children with auxiliary observation of blood reflux has broad market prospects.

Contents of the invention

Aiming at the deficiencies of the prior art, the utility model provides a children's blood drawer with auxiliary observation of blood backflow, which is used to overcome the defects of the prior art.

The technical solution adopted by the utility model is: a blood drawer for children, including a first needle body, the first needle body and the second needle body are connected through a catheter, the catheter and the heparin cap are connected through a branch pipe, the second A bottle cap device is arranged outside the needle body, and the bottle cap device is connected with the vacuum blood collection tube.

The bottle cap device includes a bottle cap body, the bottle cap body is a rubber cap-shaped structure, the top of the bottle cap body is fixedly connected with a second needle body installation tube, the second needle body installation tube is a rubber tubular structure, and the second needle body is installed The tube is vertically installed on the top of the bottle cap body, the second needle body is sleeved inside the second needle body installation pipe, and the outer diameter of the second needle body is not less than the inner diameter of the second needle body installation pipe.

The catheter and the branch pipe are integrated, the outlet end of the branch pipe is connected to the bottom of the heparin cap, the needle wing is welded on the outside of the first needle body, the needle wing is a plate-shaped structure, the flat end of the first needle body is connected to the inlet of the catheter The outlet end of the catheter is connected with the flat end of the second needle body.

The top of the vacuum blood collection tube is provided with a gasket, the gasket is an elastic sheet structure, the outer diameter of the gasket matches the inner diameter of the vacuum blood collection tube, the gasket is located under the bottle cap body, the gasket and the bottle cap body As an integral structure, the pointed end of the second needle body is installed inside the second needle body installation tube.

The bottom of the vacuum blood collection tube is provided with a liquid volume scale layer, the top of the vacuum blood collection tube is set on the bottom of the bottle cap body, the outer diameter of the vacuum blood collection tube matches the inner diameter of the bottle cap body, and the vacuum blood collection tube and the bottle cap body are threaded. connected in a way.

The beneficial effects of the utility model are as follows: firstly, the product is provided with a branch tube and a heparin cap connected with the catheter, and can be inserted into the catheter system through an external disposable needle tube, and the negative pressure in the catheter is increased through the use of the needle tube to realize blood flow from the blood vessel It is easy to observe whether the first needle body is punctured into the vein correctly; secondly, there is a needle wing on the outside of the first needle body of this product, which is convenient for grasping the insertion angle of the needle body and convenient for use; thirdly, this product is in vacuum The top of the blood collection tube is equipped with a sealing gasket, which is easy to maintain the negative pressure system in the vacuum blood collection tube before use, and is convenient for storage; finally, the second needle tube of this product is set in the second needle tube installation tube, which avoids bacterial contamination and improves blood circulation. Analytical detection accuracy.

Description of drawings

Fig. 1 is the utility model schematic diagram.

Fig. 2 is a schematic cross-sectional view of the components of the utility model.

Fig. 3 is an enlarged schematic diagram of detail A in Fig. 2 of the present utility model.

Detailed ways

As shown in Figures 1, 2, and 3, a blood drawer for children includes a first needle body 1, the first needle body 1 and the second needle body 5 communicate through a catheter 2, and the catheter 2 and the heparin cap 4 The branch pipe 3 is connected, and the second needle body 5 is provided with a bottle cap device, and the bottle cap device is connected with the vacuum blood collection tube 7 . The bottle cap device includes a bottle cap body 6, the bottle cap body 6 is a rubber cap-like structure, the top of the bottle cap body 6 is fixedly connected with a second needle body installation tube 8, and the second needle body installation tube 8 is a rubber tubular structure, The second needle body installation tube 8 is installed vertically on the top of the bottle cap body 6, the second needle body 5 is sleeved inside the second needle body installation tube 8, and the outer diameter of the second needle body 5 is not smaller than the second needle body installation tube 8 inner diameter. The catheter 2 and the branch pipe 3 are integrally structured, the outlet end of the branch pipe 3 is connected to the bottom of the heparin cap 4, the needle wing 10 is welded on the outside of the first needle body 1, the needle wing 10 is a plate-shaped structure, the first needle body The blunt end of 1 is connected with the inlet end of conduit 2 , and the outlet end of conduit 2 is connected with the blunt end of second needle body 5 . The top of the vacuum blood collection tube 7 is provided with a sealing gasket 9, the sealing gasket 9 is an elastic sheet structure, the outer diameter of the sealing gasket 9 matches the inner diameter of the vacuum blood collection tube 7, and the sealing gasket 9 is located below the bottle cap body 6 , the sealing gasket 9 and the bottle cap body 6 are integrally structured, and the pointed end of the second needle body 5 is installed inside the second needle body installation tube 8 . The bottom of the vacuum blood collection tube 7 is provided with a liquid volume scale layer, the top of the vacuum blood collection tube 7 is set on the bottom of the bottle cap body 6, the outer diameter of the vacuum blood collection tube 7 matches the inner diameter of the bottle cap body 6, and the vacuum blood collection tube 7 It is connected with the bottle cap body 6 in a threaded manner.

The method of using this product is as follows: Firstly, the first needle body 1 is inserted into the patient's venous vessel, and then the disposable syringe is used to penetrate into the heparin cap 4 to draw air outward, and observe whether the blood return in the catheter and the branch tube is normal, and then pull out the disposable syringe. Syringe, and then the second needle body 5 pierces the bottle cap body 6 and the sealing gasket 9, so that the needle part of the second needle body 5 is located under the sealing gasket 9, by observing the scale at the bottom of the vacuum blood collection tube 7, it is judged that this sampling Whether the amount is enough, and then, pull out the second needle body 5 from the bottle cap body 6, and then pull out the patient's puncture site and pull out the first needle body 1 to complete the collection of this sample.

If the blood sample needs to be analyzed multiple times and the sample needs to be separated, this product can also be used for sample collection by piercing the heparin cap 4 through the branch tube through a disposable syringe or inserting the existing vacuum negative pressure blood collection tube into the second needle body 5 Sample collection, the advantage of collecting samples in this way is that it is convenient for aseptic operation and reduces the contamination of samples during transfer.

The utility model is passed, and is a blood drawer for children required by workers in the medical field, so that the utility model has broad market prospects.

Claims (5)

1. a kind of children's hemospast, including the first needle body (1), the first needle body (1) is connected with the second needle body (5) by conduit (2) It is logical, it is characterised in that: the conduit (2) is connected with calparine cap (4) by branch pipe (3), and bottle is equipped with outside the second needle body (5) Lid arrangement, bottle cap device are connected with vacuum blood collection tube (7).

2. children's hemospast according to claim 1, it is characterised in that: the bottle cap device includes body of the bottle lid (6), Body of the bottle lid (6) is rubber lid-like, is fixedly connected with the second needle body installing pipe (8), the second needle body at the top of body of the bottle lid (6) Installing pipe (8) is rubber tubular structure, and the second needle body installing pipe (8) is vertically installed at the top of body of the bottle lid (6), the second needle body (5) it is sleeved on the second needle body installing pipe (8) inside, the outer diameter of the second needle body (5) is interior not less than the second needle body installing pipe (8) Diameter.

3. children's hemospast according to claim 1, it is characterised in that: the conduit (2) and branch pipe (3) is integrated knot The outlet end of structure, branch pipe (3) is connected with the bottom of calparine cap (4), is welded with the needle wing (10), the needle wing on the outside of the first needle body (1) It (10) is plate structure, the butt end of the first needle body (1) is connected with the arrival end of conduit (2), the outlet end of conduit (2) and the The butt end of two needle bodies (5) is connected.

4. children's hemospast according to claim 2, it is characterised in that: be equipped at the top of the vacuum blood collection tube (7) Gasket (9), gasket (9) are resilient sheet-like structure, and the outer diameter of gasket (9) and the internal diameter of vacuum blood collection tube (7) match, Gasket (9) is located at below body of the bottle lid (6), and gasket (9) and body of the bottle lid (6) are structure as a whole, the second needle body (5) It is internal that tip end is mounted on the second needle body installing pipe (8).

5. children's hemospast according to claim 2, it is characterised in that: vacuum blood collection tube (7) bottom is equipped with liquid Body volume markings layer is sleeved on body of the bottle lid (6) bottom, the outer diameter and bottle of vacuum blood collection tube (7) at the top of vacuum blood collection tube (7) The internal diameter of lid ontology (6) matches, and vacuum blood collection tube (7) is connected by the way of screw thread with body of the bottle lid (6).