CN207341792U - A kind of excessive puncture needle of resistant to blood - Google Patents

A kind of excessive puncture needle of resistant to blood Download PDF

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Publication number
CN207341792U
CN207341792U CN201720239611.0U CN201720239611U CN207341792U CN 207341792 U CN207341792 U CN 207341792U CN 201720239611 U CN201720239611 U CN 201720239611U CN 207341792 U CN207341792 U CN 207341792U
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China
Prior art keywords
blood
observation window
hole
puncture needle
fixator
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CN201720239611.0U
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Chinese (zh)
Inventor
石英
陈进英
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General Hospital of Guangzhou Military Command
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General Hospital of Guangzhou Military Command
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Priority to CN201720239611.0U priority Critical patent/CN207341792U/en
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Abstract

The venipuncture needle that a kind of medical treatment uses is the utility model is related to, in particular for puncturing the implanting needle of seal wire.There is the needle point of a gradient on a kind of excessive puncture needle of resistant to blood, including pin stalk, the pintle of the blood back observation window, connection and the blood back observation window end that are connected with pin stalk end, the top of the pin stalk, and the pintle is anti-hemorrhage structure, and the pintle includes:The shell that is connected with the end of blood back observation window, the open-ended anti-overflow film of closure blood back observation window, the fixator being fixedly connected with anti-overflow film, the cushion pad for being close to fixator placement.The utility model can effectively prevent that blood is excessive in piercing process.

Description

A kind of excessive puncture needle of resistant to blood
Technical field
The venipuncture needle that a kind of medical treatment uses is the utility model is related to, in particular for puncturing the implanting needle of seal wire.
Background technology
PICC (peripherally inserted central catheter) refers to what is placed through periphery venipuncture Central venous catheter.PICC has the advantages such as high, the indwelling time length (1 year) of processing safety, has been widely used in clinical quiet In arteries and veins treatment, especially suitable for receive chemotherapy tumour patient, it is long-term receive intravenous nutrition and PeV puncture it is difficult Patient.
Sai Dingge technologies refer to, using small size puncture needle (fine needle) progress venipuncture and guiding guide wires therein, then pull out vein Puncture needle, intubation sheath is sent into by seal wire, then is carried out ductus venosus and inserted.For vein blood vessel condition, poor (vein is tiny, hardening Slide or it is invisible) patient, using common PICC puncture needles, its disposable puncture success rate is low, or even can not wear Thorn.But PICC puncture and intubation success rates can be significantly improved by putting pipe by Sai Dingge technologies progress PICC.
Before at present, in PICC is carried out by Sai Dingge technologies and puts pipe operation, the end of venipuncture seal wire implanting needle is Open, before seal wire imports after venipuncture success, blood constantly excessive can cause operating area blood in patient's blood vessel Pollution, does not only result in patient's stress, and blood pollution is easily destroyed aseptic area, while increases operator's occupational infection wind Danger.
The content of the invention
It is as follows that the utility model mainly solves the puncture needle excessive technical problem of blood, concrete technical scheme when puncturing:
A kind of excessive puncture needle of resistant to blood, including blood back observation window, connection and the blood back that pin obstructs, is connected with pin stalk end There is the needle point of a gradient on the pintle of observation window end, the top of the pin stalk, and the pintle is anti-hemorrhage structure.
Further, the pintle of the anti-hemorrhage structure includes:The shell that is connected with the end of blood back observation window, block back The open-ended anti-overflow film of blood observation window, the fixator being fixedly connected with anti-overflow film, be close to fixator the buffering placed Pad;Wherein the inner cavity of shell is step pore structure, and outside is stepped cylinder, its connect the aperture of blood back observation window side compared with Greatly;Wherein fixator shape is step cylinder, and lumen centers have a through hole;There are a fine through holes in the centre of wherein cushion pad. The anti-overflow film is elastic material, and structure includes the blind hole in seal washer, cylinder, cylinder, blind hole is connected in the middle part of cylinder Crackle.
Puncture needle in the technical solution has technical effect that:Pintle includes shell, anti-overflow film, fixator, buffering Pad, wherein anti-overflow film blocks the opening of blood back observation window, and anti-overflow film, fixator, cushion pad are withstood and fixed by shell On the outer wall of blood back observation window, due to having fine cracks at connection blind hole in the middle part of the cylinder of anti-overflow film, and anti-overflow film is Elastic material, so in its natural state, fine cracks will not make blood along outside it because the attribute of material itself is in state is closed Overflow, and the crackle can facilitate seal wire easily to pass therethrough into the inner cavity of blood back observation window, therefore reached and prevent The excessive technique effect of blood.In addition, the design of blood back observation window enable the operator to grasp in time venipuncture into The opportunity of work(.
The utility model additionally provides that a kind of seal wire when solving to puncture is not easily accessible pin stalk, needle point direction is not easy to control, hand Hold puncture needle easily slip, etc. technical problem, concrete technical scheme it is as follows:
A kind of excessive puncture needle of resistant to blood, including blood back observation window, connection and the blood back that pin obstructs, is connected with pin stalk end There is the needle point of a gradient on the pintle of observation window end, the top of the pin stalk, and the pintle is anti-hemorrhage structure.
Further, the inner cavity of the blood back observation window is bullet cavity, and the lateral aperture close to pin stalk is less than normal, with returning The shell of the end connection of blood observation window, the inner cavity of the shell is step pore structure, and connection blood back observation window side is heavy caliber Circular hole, opposite side connect bellmouth, and the lumen centers of fixator are through hole.The structure design of above bullet cavity is greatly convenient Seal wire is slipped into pin stalk.
Further, the through hole among the cushion pad is circular hole, the path of its aperture=shell inner cavity bellmouth The aperture of=fixator the middle through-hole.
Further, the through hole among the cushion pad can also be bellmouth, its large aperture=shell (21) is interior The path of chamber bellmouth, the aperture of its small-bore=fixator (23) inner via hole.
Further, the exterior design of the blood back observation window has anti-skid chequer.The design can increase hand and puncture needle it Between frictional force, puncture needle is not easy to slip from hand.
Further, there are an instruction structure, the inclined-plane holding one of direction and the needle point in the outside of the blood back observation window Cause, which is one kind in groove or bulge-structure.The design may insure by observing this to refer in piercing process Show the position of structure, determine the direction of needle point.
Brief description of the drawings
Fig. 1 is the cross-sectional view of one embodiment puncture needle;
Fig. 2 is the structure diagram of anti-overflow film in one embodiment.
Embodiment
Below with reference to Fig. 1 and Fig. 2, the embodiment of the utility model is described in detail.
Embodiment one
A kind of excessive puncture needle of resistant to blood, including pin stalk 10, with pin stalk end be connected blood back observation window 30, connect and There is the needle point 11 of a gradient on the pintle 20 of blood back observation window end, the top of the pin stalk, and the pintle is anti-hemorrhage structure.Institute Stating the pintle 20 of anti-hemorrhage structure includes:The shell 21 that is connected with the end of blood back observation window 30, closure blood back observation window end The anti-overflow film 22 of opening, the fixator 23 being fixedly connected with anti-overflow film, be close to fixator the cushion pad 24 placed;Wherein The inner cavity of shell 21 is step pore structure, and outside is stepped cylinder, and it is larger that it connects the aperture of blood back observation window side;Its Middle 23 shape of fixator is step cylinder, and lumen centers have a fine through holes;The centre of wherein cushion pad 24 has one tiny logical Hole.The anti-overflow film is silica gel material, and structure includes the blind hole 223 in seal washer 221, cylinder 222, cylinder, cylinder middle part Connect the crackle 224 of blind hole.The inner cavity of blood back observation window is bullet cavity, and the lateral aperture close to pin stalk is less than normal, and outside is set In respect of anti-skid chequer, outside is also devised with an instruction structure, and the inclined-plane of direction and the needle point is consistent, which is recessed Slot structure.
In use, first penetrate needle point in human vein, seen whether to puncture successfully from blood back observation window, when puncturing successfully When, the opening of seal wire 40 from shell 21 is stretched into, sequentially passes through the pore of cushion pad 24, the pore of fixator 23, anti-overflow The blind hole 223 and crackle 224 of film 22, the bullet cavity of blood back observation window, pin stalk.In piercing process, blood back is observed all the time and is seen The groove in portion outside window is examined, groove is remained in one direction, so may insure needle point is also in one direction all the time. The hand of operator is held on the anti-skid chequer outside blood back observation window all the time, it can be ensured that puncture needle will not slip.
Embodiment two
Instruction structure in embodiment one outside blood back observation window is replaced with into bulge-structure.
Embodiment three
The step pore structure of 21 inner cavity of shell described in embodiment one is further limited, 30 side of connection blood back observation window For heavy caliber circular hole, opposite side connects bellmouth, and outside is stepped cylinder, its connect the aperture of 30 side of blood back observation window compared with Greatly;
It is circular hole by the lumen centers via design of fixator 23 in embodiment one;
The aperture of circular through hole among cushion pad in embodiment one 24 is further constrained, its 21 inner cavity of aperture=shell The diameter of 23 inner via hole of path=fixator of bellmouth.
Example IV
Circular through hole among cushion pad in embodiment three 24 is replaced with into bellmouth, in its large aperture=shell 21 The path of chamber bellmouth, the diameter of its small-bore=23 inner via hole of the fixator.

Claims (9)

1. a kind of excessive puncture needle of resistant to blood, including pin stalk (10) and pintle (20), there is a gradient on the top of the pin stalk Needle point (11), it is characterised in that pin stalk (10) is opposite to be connected blood back observation window (30), the blood back with the other end of needle point (11) The end connection pintle (20) of observation window (30), the pintle (20) is anti-hemorrhage structure.
2. puncture needle as claimed in claim 1, it is characterised in that the pintle (20) includes the end with blood back observation window (30) Hold shell (21), the open-ended anti-overflow film (22) of closure blood back observation window (30) and the anti-overflow film (22) of connection fixed The fixator (23) of connection, be close to fixator (23) cushion pad (24) placed;
The inner cavity of the shell (21) is step pore structure, and connection blood back observation window (30) side is heavy caliber circular hole, opposite side Even bellmouth, outside is stepped cylinder, and it is larger that it connects the aperture of blood back observation window (30) side;
Fixator (23) shape is step cylinder, and lumen centers have a through hole;
There is a through hole in the centre of the cushion pad (24).
3. puncture needle as claimed in claim 2, it is characterised in that the through hole among the cushion pad (24) is circular hole, its hole The aperture of the path=fixator (23) middle through-hole of the footpath=shell (21) inner cavity bellmouth.
4. puncture needle as claimed in claim 2, it is characterised in that the through hole among the cushion pad (24) is bellmouth, its The path of the large aperture=shell (21) inner cavity bellmouth, the aperture of its small-bore=fixator (23) inner via hole.
5. puncture needle as claimed in claim 2, it is characterised in that the anti-overflow film (22) is elastic material, and structure includes Seal washer (221), cylinder (222), the blind hole (223) in cylinder, the crackle (224) of connection blind hole (223) in the middle part of cylinder.
6. puncture needle as claimed in claim 1, it is characterised in that the inner cavity of the blood back observation window (30) is empty for bullet Chamber, the lateral aperture close to pin stalk are less than normal.
7. puncture needle as claimed in claim 1, it is characterised in that the exterior design of the blood back observation window (30) has anti-skid chequer (31)。
8. puncture needle as claimed in claim 1, it is characterised in that there is an instruction structure in the outside of the blood back observation window (30) (32), direction and the inclined-plane of the needle point are consistent.
9. puncture needle as claimed in claim 8, it is characterised in that the instruction structure (32) is in groove or bulge-structure It is a kind of.
CN201720239611.0U 2017-03-13 2017-03-13 A kind of excessive puncture needle of resistant to blood Active CN207341792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720239611.0U CN207341792U (en) 2017-03-13 2017-03-13 A kind of excessive puncture needle of resistant to blood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720239611.0U CN207341792U (en) 2017-03-13 2017-03-13 A kind of excessive puncture needle of resistant to blood

Publications (1)

Publication Number Publication Date
CN207341792U true CN207341792U (en) 2018-05-11

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Country Status (1)

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CN (1) CN207341792U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110720970A (en) * 2019-10-28 2020-01-24 新疆医科大学第三附属医院 Artery indwelling needle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110720970A (en) * 2019-10-28 2020-01-24 新疆医科大学第三附属医院 Artery indwelling needle
CN110720970B (en) * 2019-10-28 2021-03-19 新疆医科大学第三附属医院 Artery indwelling needle

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