CN209122217U - A kind of modified form needle of retaining on artery - Google Patents
A kind of modified form needle of retaining on artery Download PDFInfo
- Publication number
- CN209122217U CN209122217U CN201821487731.3U CN201821487731U CN209122217U CN 209122217 U CN209122217 U CN 209122217U CN 201821487731 U CN201821487731 U CN 201821487731U CN 209122217 U CN209122217 U CN 209122217U
- Authority
- CN
- China
- Prior art keywords
- needle
- puncture
- stand
- connecting portion
- indwelling
- 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.)
- Active
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of modified form needle of retaining on artery, belong to remaining needle field.Including puncture needle；Further include remaining needle ontology, steel needle end cap, linear bearing, sealed plunger, hold needle handle, extension tube, injection part and positioning screw；Remaining needle ontology includes indwelling needle tubing, needle stand；First connecting portion, bearing fixed part are equipped in needle stand, steel needle end cap is made of conical seal and second connecting portion, and the side wall of sealed plunger is equipped with connection lug, and the excircle that sealed plunger is matched with linear bearing is equipped with the seal convexity portion of helically shape.It is used cooperatively by conical seal and linear bearing, is conducive to the withdraw of the needle of puncture needle, so that the withdraw of the needle is more smoothly more laborsaving, and can stablized puncture needle and ensure the stationarity that puncture needle exits, reduction punctures indwelling needle tubing because of caused by shaking；The seal convexity portion of the helically shape of sealed plunger simultaneously, improves the leakproofness of remaining needle, practical.
Description
Technical field
The utility model relates to remaining needle fields, more particularly to a kind of modified form needle of retaining on artery.
Background technique
It has been widely used in medical field in current needle of retaining on artery, has utilized needle of retaining on artery donor source arterial blood mark
This, carries out dynamic blood gas analysis, electrolyte and arterial pressure monitoring etc. to critical patient, is conducive to rescue, treatment and the state of an illness
Dynamic observation, existing needle of retaining on artery, after being punctured using remaining needle, extract puncture needle during usually because
Puncture needle cannot position well, in addition medical staff's hand has shake, may pull out puncture needle process and cause to pierce through indwelling
The risk of needle tubing causes the use of remaining needle to waste, and in addition the leakproofness of existing needle stand is poor, causes remaining needle to be easy outer
It is discarded, invalid to further result in remaining needle for portion's pollution.It is, therefore, desirable to provide effective scheme solves problem above.
Utility model content
In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose a kind of modified form
Needle of retaining on artery is used cooperatively by conical seal and linear bearing, is conducive to the withdraw of the needle of puncture needle, so that the withdraw of the needle is more suitable
Benefit is more laborsaving, and can stablize puncture needle and ensure the stationarity that puncture needle exits, and reduction is punctured because of caused by shaking and stayed
Set needle tubing；The seal convexity portion of the helically shape of sealed plunger simultaneously, improves the leakproofness of remaining needle, practical.
For this purpose, the utility model uses following technical scheme:
The utility model provides a kind of modified form needle of retaining on artery, including puncture needle；
Further include remaining needle ontology, steel needle end cap, linear bearing, sealed plunger, hold needle handle, extension tube, injection part and
Positioning screw；
The puncture needle is stainless steel steel needle, and the puncture needle pierces into the remaining needle ontology along axial component；Institute
Stating remaining needle ontology includes indwelling needle tubing, needle stand；The indwelling needle tubing is the lucite pipe of inner hollow, the indwelling needle tubing
Head end be equipped with puncture portion, the tail end of the indwelling needle tubing is fixedly connected with the needle stand；It is coaxially set in the needle stand along axial direction
Have a first connecting portion, bearing fixed part, the remaining needle pipe sleeve be set in the first connecting portion and with phase inside the needle stand
Connection, the indwelling needle tubing and the first connecting portion are interference fitted；The linear bearing be fixed inside the needle stand and
One end is bonded with the fixation of an end face of the bearing fixed part；The steel needle end cap sealing is set in the needle stand and far from described
One end of indwelling needle tubing, the steel needle end cap are made of conical seal and second connecting portion, the conical seal with it is described
The inner ring of linear bearing is tightly connected, and the inner wall of the second connecting portion and the needle stand is tightly connected；The puncture needle
One end is fixedly connected with the conical seal；The other end of the puncture needle coaxially penetrates into institute after passing through the needle stand
It states in indwelling needle tubing, the needle handle of holding is fixed on the lateral wall of the second connecting portion, described to hold needle handle polytetrafluoroethylene (PTFE)
Material is made, and the needle handle of holding is bonded on the lateral wall of the second connecting portion；The peripheral side for stating needle stand extends outwardly
Ground is provided with the injection part, and the injection part is connected with the needle stand close to the inside in the puncture portion by the extension tube
It is logical；
The needle stand is equipped with the screw thread being connected with the positioning screw with the end face that the second connecting portion fits
Hole, the sealed plunger are fixedly connected by the positioning screw with the needle stand；The side wall of the sealed plunger, which is equipped with, to be connected
Connect lug, the connection lug is equipped with location hole, the positioning screw pass through location hole on the connection lug with it is described
Needle stand is threadedly coupled, and the sealed plunger can be moved up and down along the positioning screw, the sealed plunger and the linear axis
Hold the seal convexity portion that the excircle matched is equipped with helically shape.
Optionally, the needle handle of holding is an integral structure with the steel needle end cap, described to hold needle handle and the steel needle end cap
It is that polytetrafluoroethylene material is made, in unilateral butterfly-like, the surface for holding needle handle is equipped with multiple anti-the needle handle of holding
Sliding protrusion.
Optionally, the conical seal is integrally formed structures with second connecting portion.
Optionally, the end face far from the needle stand of the wedge shaped shape in puncture portion, the puncture portion is that wedge angle is
10 ° -15 ° of inclined-plane.
Optionally, the indwelling needle tubing is equipped with sheath, and in the sheath, the sheath is socketed in for the site of puncture
In the first connecting portion, after the sheath is installed in place, the front end in the puncture portion is with the inner wall gap of the sheath
2mm-3mm。
The utility model has the following beneficial effects:
A kind of modified form needle of retaining on artery provided by the utility model is made by conical seal and linear bearing cooperation
With being conducive to the withdraw of the needle of puncture needle, so that the withdraw of the needle is more smoothly more laborsaving, and puncture needle can be stablized ensures that puncture needle moves back
Stationarity out reduces and punctures indwelling needle tubing because caused by shaking；The seal convexity of the helically shape of sealed plunger simultaneously
The leakproofness of remaining needle is improved in portion, practical.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for modified form needle of retaining on artery that specific embodiment of the present invention provides；
Fig. 2 is a kind of decomposition texture signal for modified form needle of retaining on artery that specific embodiment of the present invention provides
Figure.
In figure:
1, puncture needle；2, remaining needle ontology；3, steel needle end cap；4, linear bearing；5, sealed plunger；6, needle handle is held；7,
Extension tube；8, injection part；9, positioning screw；10, sheath；21, indwelling needle tubing；22, needle stand；31, conical seal；32, second
Interconnecting piece；51, lug is connected；52, seal convexity portion；211, puncture portion；221, first connecting portion；222, bearing fixed part.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figs. 1-2, including puncture needle 1；It further include remaining needle ontology 2, steel needle end cap 3, linear bearing 4, sealing
Plunger 5 holds needle handle 6, extension tube 7, injection part 8 and positioning screw 9；Puncture needle 1 is stainless steel steel needle, 1 edge of puncture needle
Axial component pierces into remaining needle ontology 2.
In order to which more a step understands the structure of remaining needle ontology 2, specifically remaining needle ontology 2 includes indwelling needle tubing 21, needle stand
22；Indwelling needle tubing 21 is the lucite pipe of inner hollow, and the head end of indwelling needle tubing 21 is equipped with puncture portion 211, indwelling needle tubing 21
Tail end be fixedly connected with needle stand 22；First connecting portion 221, bearing fixed part 222, indwelling are coaxially provided with along axial direction in needle stand 22
Needle tubing 21 be sheathed in first connecting portion 221 and be connected inside needle stand 22, indwelling needle tubing 21 and 221 interference of first connecting portion
Cooperation；Specifically indwelling needle tubing 21 is also made using polytetrafluoroethylene material, reduces the incidence of thrombus, linear bearing 4
It is fixed at 22 inside of needle stand and one end is bonded with the fixation of an end face of bearing fixed part 222；Linear bearing 4 can according to ruler
The miniature linear bearing 4 of very little customization, while linear bearing 4 can also be made using polytetrafluoroethylene material；By linear axis
When holding 4 installations and being bonded with 222 end face of bearing fixed part in needle stand 22, it was demonstrated that linear bearing 4 is installed in place, while linear bearing
4 outer ring and the internal wall transitions of needle stand 22 cooperate, it is ensured that the installation of linear bearing 4 is reliable；The sealing of steel needle end cap 3 simultaneously is set to needle
In seat 22 and one end far from indwelling needle tubing 21, steel needle end cap 3 are made of conical seal 31 and second connecting portion 32, taper
The inner ring of sealing 31 and linear bearing 4 is tightly connected, and the inner wall of second connecting portion 32 and needle stand 22 is tightly connected；Normal mounting
When specifically the ball of conical seal 31 and linear bearing 4 contact with each other and seal needle stand 22 simultaneously, when indwelling needle tubing 21 enters
Behind arteries inside, puncture needle 1 is withdrawn by holding needle handle 6, in the ball phase of conical seal 31 and linear bearing 4
The taking-up of puncture needle 1 is convenient in mutually contact under the effect of linear bearing 4.It should be noted that the outer diameter of second connecting portion 32
Greater than 31 outer diameter of conical seal, the end face of second connecting portion 32 may be implemented to be bonded with the face seal of needle stand 22,
The conical seal 31 and the ball of linear bearing 4 protruded into inside needle stand 22 contacts with each other.In addition one end of puncture needle 1 and cone
Shape sealing 31 is fixedly connected；The other end of puncture needle 1 coaxially penetrates into indwelling needle tubing 21 after passing through needle stand 22, holds needle
Handle 6 is fixed on the lateral wall of second connecting portion 32, is held 6 polytetrafluoroethylene material of needle handle and is made, holds needle handle 6 and be bonded in
On the lateral wall of second connecting portion 32；The peripheral side for stating needle stand 22, which reach out to, is provided with injection part 8, and injection part 8 is by prolonging
Long tube 7 is connected with needle stand 22 close to the inside in puncture portion 211；Injection part 8 is mainly provided to be connected with External infusion liquid device,
Facilitate External infusion liquid device to enter the arrival indwelling needle tubing 21 of extension tube 7 by injection part 8 to enter in human body artery blood vessel, needle stand 22
It is equipped with the threaded hole being connected with positioning screw 9 with the end face that second connecting portion 32 fits, sealed plunger 5 passes through positioning
Screw rod 9 is fixedly connected with needle stand 22；The side wall of sealed plunger 5 is equipped with connection lug 51, and connection lug 51 is equipped with location hole,
The location hole that positioning screw 9 passes through on connection lug 51 is threadedly coupled with needle stand 22, and sealed plunger 5 can be along on positioning screw 9
Lower movement, while connecting lug 51 and can also be rotated around positioning screw 9, normal sealed plunger 5 is the outside for being fixed on needle stand 22,
The excircle of sealed plunger 5 is equipped with the seal convexity portion 522 of helically shape, the front end face and linear bearing 4 of sealed plunger 5
One end face paste close, seal convexity portion 522 and needle stand 22 are fitted close, it is ensured that the sealing in seal convexity portion 522 and needle stand 22
Property.
Specific working principle is, when needing to carry out arteriopuncture using remaining needle, medical staff holds needle handle 6 will
Puncture needle 1 is inserted into human body artery blood vessel, and indwelling needle tubing 21 can be pierced into blood vessel with puncture needle 1, indwelling needle tubing 21
It will not influence the injection of medicament, after indwelling needle tubing 21 is with 1 puncture vessel of puncture needle, 21 indwelling of indwelling needle tubing in the blood vessel, is worn
Thorn steel needle 1 exits, and after indwelling needle tubing 21 enters arteries inside, holds needle handle 6 and withdraws puncture needle 1, due to boring
Shape sealing 31 and the ball of linear bearing 4 contact with each other, can be more convenient in conjunction with linear bearing 4 and successfully by puncture needle
1 takes out, also more laborsaving, and can stablize exiting for puncture needle 1, do not generate halfway shaking prevent from puncturing indwelling needle tubing 21 and
Cause the failure of remaining needle, it should be noted that puncture needle 1, before puncture, sealed plunger 5 is the outside for being fixed on needle stand 22,
After puncture needle 1 exits needle stand 22 completely, the excircle of sealed plunger 5 is equipped with twist by rotatory sealing plunger 5
The seal convexity portion 522 of shape seals 22 end of needle stand, and the front end face of sealed plunger 5 and one end face paste of linear bearing 4 are closed, sealed convex
It plays portion 522 and needle stand 22 is fitted close, it is ensured that the leakproofness in seal convexity portion 522 and needle stand 22, the good remaining needle of leakproofness
Practicability is stronger.
Optionally, it holds needle handle 6 to be an integral structure with steel needle end cap 3, holding needle handle 6 and steel needle end cap 3 is polytetrafluoroethyl-ne
Alkene material is made, and holds needle handle 6 in unilateral butterfly-like, and the surface for holding needle handle 6 is equipped with multiple anti-skid bulges, holds needle handle 6 in single
Side is butterfly-like, while the surface for holding needle handle 6 is equipped with multiple anti-skid bulges, convenient for medical care personnel hand-held needle handle 6 of holding to being pushed forward
It is intravascular that the dynamic puncture needle 1 of forward (FWD) penetrates human body artery, it is ensured that puncture needle 1 punctured smoothly completes.
Optionally, conical seal 31 is integrally formed structures with second connecting portion 32, it is ensured that the connection of steel needle end cap 3
Intensity, while also processing and fabricating is also simple and convenient.
Optionally, the wedge shaped shape in puncture portion 211, the end face of the separate needle stand 22 in puncture portion 211 be wedge angle be 10 °-
15 ° of inclined-plane, and punctured upward with the inclined-plane that wedge angle is 10 ° -15 °, in order to the needle tip for making area small, i.e.,
Increase pressure, convenient for puncturing, while wedge angle is set as 10 ° -15 ° and could be easier to penetrate skin, injects blood vessel, reduction pair
The pain of transfusion patient.
Optionally, indwelling needle tubing 21 is equipped with sheath 10, and puncture portion 211 is located in sheath 10, and sheath 10 is socketed in first
On interconnecting piece 221, after sheath 10 is installed in place, the front end in puncture portion 211 and the inner wall gap of sheath 10 are 2mm-3mm, specifically
It is equipped on ground needle stand 22 close to one end of indwelling needle tubing 21 and is interference fitted end with sheath 10, when indwelling needle tubing 21 is sheathed on needle
When on the end of seat 22, the inner wall gap of the front end in puncture portion 211 and sheath 10 is 2mm-3mm, it is ensured that the position always of puncture portion 211
Puncture portion 211 is exposed to cause human body to stab injury in preventing in sheath 10, when needing intra arterial injection, it is only necessary to remove shield
Set 10.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (5)
1. a kind of modified form needle of retaining on artery, including puncture needle (1)；It is characterized by:
Further include remaining needle ontology (2), steel needle end cap (3), linear bearing (4), sealed plunger (5), hold needle handle (6), extension tube
(7), injection part (8) and positioning screw (9)；
The puncture needle (1) is stainless steel steel needle, and the puncture needle (1) pierces into the remaining needle ontology along axial component
(2)；The remaining needle ontology (2) includes indwelling needle tubing (21), needle stand (22)；The indwelling needle tubing (21) is the saturating of inner hollow
The head end of bright plastic tube, the indwelling needle tubing (21) is equipped with puncture portion (211), the tail end and the needle of the indwelling needle tubing (21)
Seat (22) is fixedly connected；First connecting portion (221), bearing fixed part (222), institute are coaxially provided with along axial direction in the needle stand (22)
It states indwelling needle tubing (21) to be sheathed on the first connecting portion (221) and be connected with the needle stand (22) inside, the indwelling
Needle tubing (21) and the first connecting portion (221) are interference fitted；It is internal that the linear bearing (4) is fixed at the needle stand (22)
And one end is bonded with the fixation of an end face of the bearing fixed part (222)；Steel needle end cap (3) sealing is set to the needle stand
(22) in and one end far from the indwelling needle tubing (21), the steel needle end cap (3) are connect by conical seal (31) with second
Portion (32) composition, the inner ring sealed connection of the conical seal (31) and the linear bearing (4), the second connecting portion
(32) it is tightly connected with the inner wall of the needle stand (22)；One end and the conical seal (31) of the puncture needle (1) are solid
Fixed connection；The other end of the puncture needle (1) coaxially penetrates into the indwelling needle tubing (21) after passing through the needle stand (22)
Interior, the needle handle (6) of holding is fixed on the lateral wall of the second connecting portion (32), described to hold needle handle (6) polytetrafluoroethylene (PTFE)
Material is made, and the needle handle (6) of holding is bonded on the lateral wall of the second connecting portion (32)；State the periphery of needle stand (22)
Epitaxial lateral overgrowth is provided with the injection part (8) with stretching, and the injection part (8) passes through the extension tube (7) and the needle stand (22)
Inside close to the puncture portion (211) is connected；
The needle stand (22) is equipped with the end face that the second connecting portion (32) fits to be connected with the positioning screw (9)
Threaded hole, the sealed plunger (5) is fixedly connected by the positioning screw (9) with the needle stand (22)；The sealing column
The side wall for filling in (5) is equipped with connection lug (51), and the connection lug (51) is equipped with location hole, and the positioning screw (9) is worn
The location hole crossed on connection lug (51) is threadedly coupled with the needle stand (22), and the sealed plunger (5) can be along described
Positioning screw (9) moves up and down, and it is in spiral shell that the excircle that the sealed plunger (5) matches with the linear bearing (4), which is equipped with,
Revolve the seal convexity portion (52) of shape.
2. a kind of modified form needle of retaining on artery as described in claim 1, it is characterised in that:
The needle handle (6) of holding is an integral structure with the steel needle end cap (3), described to hold needle handle (6) and the steel needle end cap (3)
It is that polytetrafluoroethylene material is made, in unilateral butterfly-like, the surface for holding needle handle (6) is equipped with for described hold needle handle (6)
Multiple anti-skid bulges.
3. a kind of modified form needle of retaining on artery as described in claim 1, it is characterised in that:
The conical seal (31) is integrally formed structures with second connecting portion (32).
4. a kind of modified form needle of retaining on artery as described in claim 1, it is characterised in that:
The wedge shaped shape of the puncture portion (211), the end face far from the needle stand (22) of the puncture portion (211) are wedge angle
For 10 ° -15 ° of inclined-plane.
5. a kind of modified form needle of retaining on artery as described in claim 1, it is characterised in that:
The indwelling needle tubing (21) is equipped with sheath (10), and the puncture portion (211) is located in the sheath (10), the sheath
(10) it is socketed on the first connecting portion (221), after the sheath (10) is installed in place, the front end of the puncture portion (211)
Inner wall gap with the sheath (10) is 2mm-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821487731.3U CN209122217U (en) | 2018-09-12 | 2018-09-12 | A kind of modified form needle of retaining on artery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821487731.3U CN209122217U (en) | 2018-09-12 | 2018-09-12 | A kind of modified form needle of retaining on artery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209122217U true CN209122217U (en) | 2019-07-19 |
Family
ID=67229990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821487731.3U Active CN209122217U (en) | 2018-09-12 | 2018-09-12 | A kind of modified form needle of retaining on artery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209122217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041442A (en) * | 2021-02-04 | 2021-06-29 | 湛江健力源医疗用品有限公司 | Sleeve type multifunctional puncture-proof remaining needle |
-
2018
- 2018-09-12 CN CN201821487731.3U patent/CN209122217U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041442A (en) * | 2021-02-04 | 2021-06-29 | 湛江健力源医疗用品有限公司 | Sleeve type multifunctional puncture-proof remaining needle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106264687B (en) | Adjustable diacan and indwelling casing tube matched with its and outer jointing jacket | |
| CN201939855U (en) | Acupuncture-prevention venous retention needle | |
| CN209122217U (en) | A kind of modified form needle of retaining on artery | |
| CN204033350U (en) | A kind of blood taking needle | |
| CN203988075U (en) | Safety blood taking needle | |
| CN209285526U (en) | New intravenous blood collecting equipment | |
| CN209060192U (en) | A kind of new type of safe remaining needle | |
| CN204106099U (en) | A kind of fixture being convenient to venipuncture | |
| CN209018876U (en) | One kind can the pinpoint intracavitary pricking device of axillary vein | |
| CN209464427U (en) | A kind of safe type retention needle | |
| CN206950174U (en) | A kind of vacuum blood taking needle | |
| CN203749423U (en) | Anti-puncture medical needle | |
| CN209421946U (en) | Blood drawing attachment device | |
| CN207444954U (en) | Anti-rebound needle holder | |
| CN208769792U (en) | Integral type hemostix | |
| CN206809281U (en) | Vein blood taking needle external member under hysteroscope | |
| CN207996206U (en) | A kind of novel experimental chicken venous blood collection auxiliary intubation | |
| CN219878669U (en) | Sealing connection device for extracting liquid | |
| CN206166929U (en) | Needleless blood sampling needle | |
| CN108042880A (en) | A kind of safe type retention needle | |
| CN211609808U (en) | Novel anti-pop-up venous blood taking needle | |
| CN210020643U (en) | Syringe | |
| CN204293609U (en) | Transfusion bottle stopper puncture needle | |
| CN211433196U (en) | Disposable medical catheter needle | |
| CN210204748U (en) | Connect and keep somewhere needle type safety hemostix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |