CN209421946U - Blood drawing attachment device - Google Patents

Blood drawing attachment device Download PDF

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Publication number
CN209421946U
CN209421946U CN201821424213.7U CN201821424213U CN209421946U CN 209421946 U CN209421946 U CN 209421946U CN 201821424213 U CN201821424213 U CN 201821424213U CN 209421946 U CN209421946 U CN 209421946U
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CN
China
Prior art keywords
conduit
needle body
casing
needle
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201821424213.7U
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Chinese (zh)
Inventor
王俊
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Zhengzhou Childrens Hospital
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Zhengzhou Childrens Hospital
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Filing date
Publication date
Application filed by Zhengzhou Childrens Hospital filed Critical Zhengzhou Childrens Hospital
Priority to CN201821424213.7U priority Critical patent/CN209421946U/en
Application granted granted Critical
Publication of CN209421946U publication Critical patent/CN209421946U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of blood drawing attachment devices, including the first needle body and the second needle body, first needle body and the second needle body are connected by the first conduit, first needle body is equipped with the needle wing, first conduit is equipped with duct valve, waste liquid apparatus for placing is equipped between duct valve and the second needle body, waste liquid apparatus for placing is connected with the first conduit, second needle body is sleeved in installing pipe and casing, pressure-regulating device is equipped with below second needle body, the second conduit is set in pressure-regulating device, second conduit is connected with third needle body, 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, have Extensive market prospects.

Description

Blood drawing attachment device
Technical field
The utility model relates to medical fields, and in particular to a kind of blood drawing attachment device.
Background technique
A kind of blood taking needle being used to acquire blood sample during medical inspection, is made of, syringe needle is located at needle syringe needle and shank The head of bar, slidably connects sheath on shank, and the initial position of reset spring and sheath is equipped between sheath and shank Positioned at the head of syringe needle and shank.When operator, which holds needle tubing, presses on blood taking needle head on limbs of patient, sheath is in skin Skin being retracted, protrude syringe needle and being pierced under the elastic force effect of skin and cause minimally invasive, sheath is in reset spring after pulling out blood taking needle Under the action of reset again and cover syringe needle to avoid syringe needle is exposed contaminated or unexpected prick into human body.When blood taking needle is pulled out, Needle tubing cavity enclosed with skin is gradually increased, and is formed instantaneous negative pressure, is conducive to the acquisition of blood sample.
The blood taking needle used currently on the market is mostly adult design, and children design because blood vessel is thinner using for adult Vein hemostix can not see well whether being punctured in the vein blood vessel of children, when being punctured to subcortex hair Tubule bleeding can also be entered in conduit by blood taking needle, and because children's blood vessel more carefully flows back relatively slowly, be adopted puncturing for children Even collecting veteran technician when blood sample, also maloperation is repeatedly punctured frequent occurrence, traditional vein hemostix Trouble, vein hemostix available on the market are worn there is no the device of auxiliary observation blood backflow for children in use process Thorn blood sampling is inconvenient to use.
Therefore it provides a kind of blood drawing attachment device with auxiliary observation blood backflow, has extensive market prospects.
Summary of the invention
In view of the deficiencies of the prior art, the utility model provides a kind of blood drawing connection dress with auxiliary observation blood backflow It sets, for overcoming defect in the prior art.
The technical solution adopted in the utility model are as follows: a kind of blood drawing attachment device, including the first needle body and the second needle body, the One needle body and the second needle body are connected by the first conduit, and the first needle body is equipped with the needle wing, and first conduit is equipped with and leads Tube valve is equipped with waste liquid apparatus for placing between duct valve and the second needle body, waste liquid apparatus for placing is connected with the first conduit, the Two needle bodies are sleeved in installing pipe and casing, and pressure-regulating device is equipped with below the second needle body, is set in pressure-regulating device Second conduit, the second conduit are connected with third needle body.
The waste liquid apparatus for placing includes waste liquid capsule, and waste liquid capsule and the first conduit are connected by branch pipe, are set on branch pipe There is branch pipe valve.
The pressure-regulating device includes gasket, and gasket is rubber circular sheet-like structures, is equipped on the outside of gasket Piston, piston are elastic annular structure, and piston and gasket are structure as a whole, and the lower section of piston is equipped with push rod, push rod and piston It is connected, the second conduit is set in push rod, the second catheter tip is connected with the bottom surface of gasket, and the diameter of the second conduit is not Less than the diameter of gasket.
The push rod and piston is structure as a whole, and casing is sleeved on piston, outer wall and the internal surface of sleeve pipe activity of piston Connection, casing are the round tubular structure of top closure, and installing pipe is vertically installed at the top surface of casing, and casing and installing pipe are one Body structure, installing pipe are tubular structure, and through-hole is offered at the top of casing, and through-hole is located at the lower section of installing pipe hollow structure, peace Tubulature is connected with casing by through-hole, and the second needle body is welded on installation inside pipe wall, and the tip end of the second needle body is located at through-hole The bottom end of lower section, the butt end of the second needle body and the first conduit is connected, the butt end on the top of the first conduit and the first needle body It is connected.
Second conduit and gasket are structure as a whole, and the length of the second conduit is not less than the length of push rod, push rod Length be not less than casing length.
Second conduit is mounted on the lower section of the second needle body, and the outer diameter of the second needle body is interior no more than the second conduit Diameter, the internal diameter of the second conduit are not more than the internal diameter of through-hole, and the internal diameter of through-hole is not more than the internal diameter of installing pipe, the bottom end of the second conduit It is connected with the butt end of third needle body, the outer diameter of third needle body is not more than the internal diameter of the second conduit.
The utility model beneficial effect is: firstly, this product is equipped with pressure-regulating device, by adjusting pressure-regulating device Increase the negative pressure in blood drawing attachment device and realize convenient observation blood backflow situation, is easy to judge whether the first needle body is correctly worn It pierces in vein blood vessel;Secondly, the needle wing is equipped on the outside of the first needle body of this product, and the grasp of the convenient piercing angle to needle body, side Just it uses;Again, this product is equipped with duct valve, and the convenient operation to blood sampling is further avoided because blood sampling misoperation makes Air enters the unexpected injury caused by human body inside human vas;Finally, this product is equipped with waste liquid apparatus for placing, this ensure that The safety of kind operation.
Detailed description of the invention
Fig. 1 is utility model diagram.
Fig. 2 is the utility model section schematic diagram.
Fig. 3 is the diagrammatic cross-section of the utility model installing pipe and casing.
Specific embodiment
As shown in Figure 1, 2, 3, a kind of blood drawing attachment device, including the first needle body 1 and the second needle body 7, the first needle body 1 and Two needle bodies 7 are connected by the first conduit 2, and the first needle body 1 is equipped with the first conduit 2 described in the needle wing 16 and is equipped with duct valve 6, waste liquid apparatus for placing is equipped between duct valve 6 and the second needle body 7, waste liquid apparatus for placing is connected with the first conduit 2, and second Needle body 7 is sleeved in installing pipe 8 and casing 9, and pressure-regulating device, suit in pressure-regulating device are equipped with below the second needle body 7 There is the second conduit 13, the second conduit 13 is connected with third needle body 14.The waste liquid apparatus for placing includes waste liquid capsule 4, waste liquid Capsule 4 is connected with the first conduit 2 by branch pipe 3, and branch pipe 3 is equipped with branch pipe valve 5.The pressure-regulating device includes sealing Pad 12, gasket 12 are rubber circular sheet-like structures, and piston 11 is equipped on the outside of gasket 12, and piston 11 is elastic annular structure, Piston 11 and gasket 12 are structure as a whole, and the lower section of piston 11 is equipped with push rod 10, and push rod 10 is connected with piston 11, push rod 10 It is inside set with the second conduit 13,13 top of the second conduit is connected with the bottom surface of gasket 12, and the diameter of the second conduit 13 is not small In the diameter of gasket 12.The push rod 10 and piston 11 is structure as a whole, and casing 9 is sleeved on piston 11, piston 11 Outer wall is flexibly connected with 9 inner wall of casing, and casing 9 is the round tubular structure of top closure, and installing pipe 8 is vertically installed at casing 9 Top surface, casing 9 and installing pipe 8 be structure as a whole, and installing pipe 8 is tubular structure, and the top of casing 9 offers through-hole 15, leads to Hole 15 is located at the lower section of 8 hollow structure of installing pipe, installing pipe 8 and casing 9 and is connected by through-hole 15, and the second needle body 7 is welded on On 8 inner wall of installing pipe, the tip end of the second needle body 7 is located at the lower section of through-hole 15, the butt end of the second needle body 7 and the first conduit 2 Bottom end is connected, and the top of the first conduit 2 is connected with the butt end of the first needle body 1.Second conduit 13 and gasket 12 are structure as a whole, and the length of the second conduit 13 is not less than the length of push rod 10, and the length of push rod 10 is not less than the length of casing 9 Degree.Second conduit 13 is mounted on the lower section of the second needle body 7, and the outer diameter of the second needle body 7 is interior no more than the second conduit 13 Diameter, the internal diameter of the second conduit 13 are not more than the internal diameter of through-hole 15, and the internal diameter of through-hole 15 is not more than the internal diameter of installing pipe 8, and second leads The bottom end of pipe 13 is connected with the butt end of third needle body 14, and the outer diameter of third needle body 14 is not more than the internal diameter of the second conduit 13.
This product application method is as follows: the first needle body 1 being pierced into vein blood vessel first, opens duct valve 6, pulling pushes away Bar 10 observes blood backflow situation, if blood backflow is normal, closes duct valve 6, branch pipe valve 5 is opened, by pushing away Gasket 12 is pushed to the position of closely the second needle body 7 by bar 10, closes branch pipe valve 5, and the piercing of third needle body 14 is needed to contain It puts in the vacuum negative pressure blood-taking bottle of blood sample, then opens duct valve 6, and continue to press on push rod 10 to make the second needle body 7 Tip puncture gasket 10 completely and be connected with the second conduit 13, after having acquired sample, first close duct valve 6, then pass through Third needle body 14 is extracted from vacuum negative pressure blood-taking bottle, and the first needle body 1 is finally extracted from vein blood vessel, completes blood sampling behaviour Make.
The utility model passes through, and is the blood drawing attachment device that medical field worker needs, so that the utility model has Extensive market prospects.

Claims (6)

1. a kind of blood drawing attachment device, including the first needle body (1) and the second needle body (7), the first needle body (1) and the second needle body (7) It is connected by the first conduit (2), the first needle body (1) is equipped with the needle wing (16), it is characterised in that: first conduit (2) Be equipped with duct valve (6), between duct valve (6) and the second needle body (7) be equipped with waste liquid apparatus for placing, waste liquid apparatus for placing and First conduit (2) is connected, and the second needle body (7) is sleeved in installing pipe (8) and casing (9), and pressure is equipped with below the second needle body (7) Apparatus for adjusting force is set with the second conduit (13) in pressure-regulating device, and the second conduit (13) is connected with third needle body (14).
2. blood drawing attachment device according to claim 1, it is characterised in that: the waste liquid apparatus for placing includes waste liquid capsule (4), waste liquid capsule (4) is connected with the first conduit (2) by branch pipe (3), and branch pipe (3) is equipped with branch pipe valve (5).
3. blood drawing attachment device according to claim 1, it is characterised in that: the pressure-regulating device includes gasket (12), gasket (12) is rubber circular sheet-like structures, is equipped with piston (11) on the outside of gasket (12), and piston (11) is elastic ring Shape structure, piston (11) and gasket (12) are structure as a whole, and the lower section of piston (11) is equipped with push rod (10), push rod (10) and work Plug (11) is connected, and is set with the second conduit (13) in push rod (10), the bottom surface on the second conduit (13) top and gasket (12) It is connected, the diameter of the second conduit (13) is not less than the diameter of gasket (12).
4. blood drawing attachment device according to claim 3, it is characterised in that: the push rod (10) and piston (11) is one Body structure, casing (9) are sleeved on piston (11), and the outer wall of piston (11) is flexibly connected with casing (9) inner wall, and casing (9) is The round tubular structure of top closure, installing pipe (8) are vertically installed at the top surface of casing (9), and casing (9) and installing pipe (8) are Integral structure, installing pipe (8) are tubular structure, are offered through-hole (15) at the top of casing (9), through-hole (15) is located at installing pipe (8) lower section of hollow structure, installing pipe (8) are connected with casing (9) by through-hole (15), and the second needle body (7) is welded on installation It manages on (8) inner wall, the tip end of the second needle body (7) is located at below through-hole (15), the butt end and the first conduit of the second needle body (7) (2) bottom end is connected, and the top of the first conduit (2) is connected with the butt end of the first needle body (1).
5. blood drawing attachment device according to claim 3, it is characterised in that: second conduit (13) and gasket (12) it is structure as a whole, the length of the second conduit (13) is not less than the length of push rod (10), and the length of push rod (10) is not less than set Manage the length of (9).
6. blood drawing attachment device according to claim 4, it is characterised in that: second conduit (13) is mounted on second The lower section of needle body (7), the outer diameter of the second needle body (7) are not more than the internal diameter of the second conduit (13), and the internal diameter of the second conduit (13) is not Greater than the internal diameter of through-hole (15), the internal diameter of through-hole (15) is not more than the internal diameter of installing pipe (8), the bottom end of the second conduit (13) and the The butt end of three needle bodies (14) is connected, and the outer diameter of third needle body (14) is not more than the internal diameter of the second conduit (13).
CN201821424213.7U 2018-08-31 2018-08-31 Blood drawing attachment device Expired - Fee Related CN209421946U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821424213.7U CN209421946U (en) 2018-08-31 2018-08-31 Blood drawing attachment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821424213.7U CN209421946U (en) 2018-08-31 2018-08-31 Blood drawing attachment device

Publications (1)

Publication Number Publication Date
CN209421946U true CN209421946U (en) 2019-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821424213.7U Expired - Fee Related CN209421946U (en) 2018-08-31 2018-08-31 Blood drawing attachment device

Country Status (1)

Country Link
CN (1) CN209421946U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111991009A (en) * 2020-06-10 2020-11-27 四川大学华西医院 Blood sampling device and using method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111991009A (en) * 2020-06-10 2020-11-27 四川大学华西医院 Blood sampling device and using method thereof

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GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190924

Termination date: 20200831