CN107569738A - A kind of positive pressure vein remaining needle - Google Patents
A kind of positive pressure vein remaining needle Download PDFInfo
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- CN107569738A CN107569738A CN201710884646.4A CN201710884646A CN107569738A CN 107569738 A CN107569738 A CN 107569738A CN 201710884646 A CN201710884646 A CN 201710884646A CN 107569738 A CN107569738 A CN 107569738A
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- positive pressure
- needle
- connecting seat
- valve element
- way connection
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention provides a kind of positive pressure vein remaining needle, including three-way connection, flexible pipe and needle tubing component, three-way connection one end is provided with connecting seat, connecting seat connects needle tubing component by flexible pipe, the other both ends of the three-way connection are respectively equipped with positive pressure connector and cone joint, valve element and spring are sequentially provided between positive pressure connector and connecting seat, valve element is slidingly sealed with positive pressure connector and is connected, both ends of the spring is separately fixed on the valve element and connecting seat, elastic packing plug is provided with cone joint port, connecting seat is tightly connected by connecting seat sealing ring and three-way connection.Positive pressure vein remaining needle provided by the invention, after the completion of transfusion, when external infusion device takes out at positive pressure connector, spring release pressure is opened, valve element movement is promoted the second infusion channel volume is diminished, the malleation that the second infusion channel inner liquid medicine of extruding flows to flexible pipe is produced, avoids taking out the blood backflow caused by external infusion device caused by negative pressure, pre- blood-backflow preventing forms bolt into venous detaining needle and blocked up.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of positive pressure vein remaining needle.
Background technology
The application of venous detaining needle (vein detained needle) is the preferable method of clinical transfusion, on the one hand can be with
Mitigate the pain that infant brings because scalp acupuncture punctures repeatedly and the adult for going for long-term infusion.On the other hand also mitigate
The workload of clinical nurse.The use of venous detaining needle can reduce patient because venipuncture repeatedly and caused by pain and to having an injection
Fear, mitigate the impatience of family members, be easy to clinical application, anxious, the rescue medication of critical patient, reduce the pain of patient
Sense, thus venous detaining needle is in wide clinical application.
At present, after medical personnel are punctured using venous indwelling for the vein blood vessel of patient, needle tubing will be punctured from casing seat
Extracted in rear end and remaining needle sleeve pipe, by more soft sleeve portion indwelling in the vein blood vessel of patient, pass through remaining needle
Sleeve pipe is continuously or discontinuously infused to patient.Because the existing infusion pipeline joint being connected with three way type sleeve pipe is without just
Attachment means are pressed, when extracting the Medical Devices such as syringe out from infusion pipeline joint, due to being influenceed by factors such as human blood-pressures,
Often cause liquid backflow and blood of human body outflow, cause blood to be flowed out by patient, sleeve pipe, cause blood in sleeve pipe
Obstruction or blood clotting, have a strong impact on use and the infusion safety of venous detaining needle.
Medical personnel are using often occurring that the flowing back of venous blood, excessive and air enter during disposable remaining needle
Problem, medical personnel are caused to produce a kind of psychological burden when using this kind of product, so as to have impact on the treatment to patient
Effect, in order to solve existing issue, occur a kind of disposable remaining needle with protection device currently on the market, but by
In its unreasonable structure, manufacturing process complexity being present, cost is high, in-convenience in use the problems such as.
Therefore, a kind of disposable remaining needle how is designed, the flowing back of venous blood can be improved, excessive and air enters shows
As turning into urgent problem to be solved.
The content of the invention
The present invention is the drawbacks described above for solving prior art, there is provided a kind of positive pressure vein remaining needle.
The present invention provides a kind of positive pressure vein remaining needle, including three-way connection, flexible pipe and needle tubing component, the three-way connection
One end is provided with connecting seat, and the connecting seat connects the needle tubing component, the other both ends difference of the three-way connection by flexible pipe
Provided with positive pressure connector and cone joint, the positive pressure connector outer surface is provided with the external screw thread coordinated with external infusion device joint, institute
State and valve element and spring are sequentially provided between positive pressure connector and connecting seat, the valve element is slidingly sealed with positive pressure connector to be connected, described
Both ends of the spring is separately fixed on the valve element and connecting seat, is provided with the three-way connection and is penetrated the cone joint and connection
The first infusion channel and the second infusion channel of the insertion positive pressure connector and connecting seat of seat；The valve element is used to infuse
After the completion of by spring force move compression the second infusion channel formed malleation；Elastic packing is provided with the cone joint port
Plug, the elastic packing are provided with slit beyond the Great Wall, and the connecting seat is tightly connected by connecting seat sealing ring and the three-way connection.
Wherein, the needle tubing component includes needle handle, catheter block, conduit and notch needle tubing, and described catheter block one end is provided with and led
Pipe, the other end connect the needle handle, are provided with batching pig in the catheter block, described notch needle tubing one end is fixed on the needle handle
On, the other end is placed in catheter interior through the batching pig；The catheter block connects the connecting seat by the flexible pipe.
Wherein, the contact position of the valve element both ends and three-way connection is respectively equipped with sealing ring and lower seal, described
Valve element is tightly connected by the upper sealing ring and lower seal with the three-way connection.
Wherein, it is provided with the outside of the conduit and is used to prevent the exposed protective case of notch needle tubing needle point.
Wherein, the catheter block is connected with conduit by metal wedge.
Wherein, Needlestick prevention device is provided with the catheter block, the Needlestick prevention device is arranged at the right side of the batching pig.
Wherein, the Needlestick prevention device includes deck and the shell fragment being assemblied on the deck, and the shell fragment is used for
The notch needle tubing pins the notch needle tubing when extracting.
Wherein, the notch needle tubing is provided with blood back groove；The notch needle tubing is after human body extraction, the blood back groove movement
At to the deck, and it is caught in by the deck.
Wherein, the deck and valve element are made up of medical macromolecular materials.
Wherein, tongs is provided with the outside of the flexible pipe, the tongs includes boss, groove and snap fit；The boss is used
Flexible pipe is clamped into current limliting in coordinating with snap fit, the groove for being used for making decoction slow transit through flexible pipe is provided with the boss.
Positive pressure vein remaining needle provided by the invention, when not infusing, three-way connection passes through elastic packing plug, valve element and company
Joint chair sealing ring keeps sealing, avoids air and impurity from entering；When external infusion device is extracted at cone joint, elastic packing
Plug closure seals cone joint, while connecting seat sealing ring also functions to sealing function, avoids air and impurity from entering, prevents medicine
Liquid leaks；When external infusion device takes out at positive pressure connector, spring release pressure is opened, and moves valve element, and then make second
Infusion channel volume diminishes, and produces the normal pressure that the second infusion channel inner liquid medicine of extruding flows to flexible pipe, avoids screwing out external infusion
Decoction backflow or blood backflow, pre- blood-backflow preventing caused by device joint caused by negative pressure form bolt into venous detaining needle
It is stifled；Connecting seat sealing ring makes connecting seat be tightly connected with three-way connection simultaneously, and sealed environment avoids venous blood excessive and air enters
Enter.
Brief description of the drawings
Fig. 1 is the structural representation according to positive pressure vein remaining needle provided in an embodiment of the present invention；
Fig. 2 is the structural representation according to three-way connection provided in an embodiment of the present invention；
Fig. 3 is according to tongs structural representation provided in an embodiment of the present invention；
In figure, 1：Catheter block；2：Metal wedge；3：Conduit；4：Notch needle tubing；5：Batching pig；6：Needle stand；7：Protective case；8：
Deck；9：Shell fragment；10：Connecting seat；11：Three-way connection；12：Valve element；13：Upper sealing ring；14：Lower seal；15：Connecting seat is close
Seal；16：Spring；17：Elastic packing plug；18：Flexible pipe；19：Tongs；20：Needlestick prevention device；21：Positive pressure connector；22：Return
Blood groove；23：Boss；24：Groove；25：Snap fit；26：First infusion channel；27：Second infusion channel；28：External screw thread；29：Circle
Taper joint.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is explicitly described, it is clear that described embodiment be the present invention
Part of the embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, belongs to the scope of protection of the invention.
Fig. 1 is the structural representation according to positive pressure vein remaining needle provided in an embodiment of the present invention, and Fig. 2 is according to the present invention
The structural representation for the three-way connection that embodiment provides, as depicted in figs. 1 and 2, the positive pressure vein remaining needle includes three-way connection
11st, flexible pipe 18 and needle tubing component, described one end of three-way connection 11 are provided with connecting seat 10, and the connecting seat 10 is connected by flexible pipe 18
The needle tubing component, the other both ends of the three-way connection 11 are respectively equipped with positive pressure connector 21 and cone joint 29, the malleation
The outer surface of joint 21 be provided with external infusion device joint coordinate external screw thread 28, between the positive pressure connector 21 and connecting seat 10 according to
Secondary to be provided with valve element 12 and spring 16, the valve element 12 is slidingly sealed with positive pressure connector 21 to be connected, and the both ends of spring 16 are solid respectively
It is scheduled on the valve element 12 and connecting seat 10, is provided with the three-way connection and penetrates the first of the cone joint and connecting seat 10
Infusion channel 26 and the second infusion channel 27 of the insertion positive pressure connector 21 and connecting seat 10；The valve element 12 is used for defeated
The second infusion channel 27 of compression is moved by spring force form malleation after the completion of liquid；Elasticity is provided with the port of cone joint 29
Sealing-plug 17, the elastic packing plug 17 are provided with slit, and the connecting seat 10 passes through connecting seat sealing ring 15 and the threeway
Joint 11 is tightly connected.
Specifically, as depicted in figs. 1 and 2, the connecting seat 10 of the one end of three-way connection 11 connects needle tubing component by flexible pipe 18,
19 other both ends of three-way connection are respectively equipped with positive pressure connector 21 and cone joint 29, in the present embodiment, when not infusing, and three-way connection
11 keep sealing by elastic packing plug 17, valve element 12 and connecting seat sealing ring 15, avoid air and impurity from entering；When outside defeated
When liquid device is infused at cone joint 29, transfusion device squeezes into cone joint 29 by the slit on elastic packing plug 17, then medicine
Liquid flows into flexible pipe 18 by the first infusion channel and enters needle tubing component by flexible pipe 18, most flows into venous blood through needle tubing component afterwards
Pipe；After the completion of transfusion, external infusion device is extracted from elastic packing plug 17, and the closure of elastic packing plug 17 seals cone joint,
Connecting seat sealing ring 15 also functions to sealing function simultaneously, avoids air and impurity from entering, prevents liquid leakage；In three-way connection 11
Both ends positive pressure connector 21 and cone joint 29 are set respectively, can be achieved simultaneously carry out two kinds of decoctions input.
Further, as shown in Fig. 2 when external infusion device is infused at positive pressure connector 21, the transfusion of external infusion device
Joint, which is connected through a screw thread, screws in positive pressure connector 21, and external infusion device pushes valve element 12, and then makes the spring being connected with valve element 12
16 forced compressions, the decoction in external infusion device flows into connecting seat 10 by the second infusion channel 27, and enters from connecting seat 10
Flexible pipe 18, flow through flexible pipe 18 and enter needle tubing component, most flow into vein blood vessel through needle tubing component afterwards；It is outside defeated after the completion of transfusion
Liquid device takes out at valve element 12, and spring 16 discharges pressure and opened, and moves valve element 12, and then becomes the volume of the second infusion channel 27
It is small, the normal pressure that the extruding inner liquid medicine of the second infusion channel 27 flows to flexible pipe 18 is produced, avoids producing when screwing out external infusion device joint
Decoction backflow or blood backflow, pre- blood-backflow preventing caused by raw negative pressure form bolt into venous detaining needle and blocked up；And no
Need heparin in sealing etc. to operate, make the more simplified convenience of operation, improve the operating efficiency of medical personnel；Connecting seat sealing ring 15 simultaneously
Connecting seat 10 is set to be tightly connected with three-way connection 11, sealed environment avoids venous blood excessive and air enters.
Positive pressure vein remaining needle provided by the invention, when not infusing, three-way connection passes through elastic packing plug, valve element and company
Joint chair sealing ring keeps sealing, avoids air and impurity from entering；When external infusion device is extracted at cone joint, elastic packing
Plug closure seals cone joint, while connecting seat sealing ring also functions to sealing function, avoids air and impurity from entering, prevents medicine
Liquid leaks；When external infusion device takes out at positive pressure connector, spring release pressure is opened, and moves valve element, and then make second
Infusion channel volume diminishes, and produces the normal pressure that the second infusion channel inner liquid medicine of extruding flows to flexible pipe, avoids screwing out external infusion
Decoction backflow or blood backflow, pre- blood-backflow preventing caused by device joint caused by negative pressure form bolt into venous detaining needle
It is stifled；Connecting seat sealing ring makes connecting seat be tightly connected with three-way connection simultaneously, and sealed environment avoids venous blood excessive and air enters
Enter.
In one embodiment, the needle tubing component includes needle handle 6, catheter block 1, conduit 3 and notch needle tubing 4, described to lead
The one end of base 1 is provided with conduit 3, and the other end connects the needle handle 6, batching pig 5, the notch needle tubing 4 are provided with the catheter block 1
One end is fixed on the needle handle 6, and the other end is placed in inside conduit 3 through the batching pig 5；The catheter block 1 is by described
Flexible pipe 18 connects the connecting seat 10.
Specifically, in the present embodiment, external infusion device is infused at positive pressure connector, external infusion device and the spiral shell of positive pressure connector 21
Line connects, and external infusion device extruding valve element compresses spring stress, and decoction flows through the entrance of flexible pipe 18 by the second infusion channel and led
Base 1, finally flow through conduit 3 and flow into vein blood vessel；After the completion of transfusion, external infusion device screws out at valve element 12, spring 16
Discharge pressure to open, move valve element 12, and then the volume of the second infusion channel 27 is diminished, produce the second infusion channel 27 of extruding
Inner liquid medicine flows to the normal pressure of flexible pipe 18, avoid screwing out decoction backflow caused by external infusion device joint caused by negative pressure or
Blood backflow, pre- blood-backflow preventing form bolt into venous detaining needle and blocked up.
In one embodiment, end face be an inclined-plane at valve element 12 and external interface, prevent external infusion device joint and
Sliding is produced when positive pressure connector 21 connects.
In one embodiment, the both ends of valve element 12 and the contact position of three-way connection 11 are respectively equipped with sealing ring 13
With lower seal 14, the valve element 12 is connected by the upper sealing ring 13 and lower seal 14 with the three-way connection 11 sealing
Connect.When external infusion device is extracted from positive pressure connector 21, upper sealing ring 13, lower seal 14 and connecting seat sealing ring 15 rise simultaneously
To sealing function, liquid leakage is prevented, avoids air and bacterium from entering three-way connection 11.
In one embodiment, the outside of conduit 3, which is provided with, is used to prevent the exposed protective case 7 of the needle point of notch needle tubing 4.Such as
Shown in Fig. 1, the length of protective case 7 is extended at the 1~3cm of left end of notch needle tubing 4, and protective case 7 is set in the outside of conduit 3, can be with
Medical personnel are protected not stabbed by the notch needle tubing in conduit.
In one embodiment, the catheter block 1 and conduit 3 are connected by metal wedge 2.Prevent the decoction in catheter block 1
During inflow catheter 3, there is the phenomenon of liquid leakage.
In one embodiment, Needlestick prevention device 20 is provided with the catheter block 3, the Needlestick prevention device 20 is arranged at institute
State the right side of batching pig 5.Needlestick prevention device 20 is set in venous detaining needle, and medical personnel are pulling out pin after being punctured to patient
During, notch needle tubing 4 is blocked by Needlestick prevention device 20, effectively avoids stabbing medical personnel and causing cross-infection, ensures
The personal safety of medical personnel, patient and waste disposal workers, substantially reduces the risk of infection, improves venous detaining needle
Security.
In one embodiment, the Needlestick prevention device 20 includes deck 8 and the shell fragment 9 being assemblied on the deck,
The shell fragment 9 is used to coordinate deck 8 to lock the notch needle tubing 4.As shown in figure 1, the Needlestick prevention device 20 is by deck 8 and assembling
Shell fragment 9 on deck is formed.In use, medical personnel carry out anti-venous indwelling needle after correctly puncturing to patient,
Conduit 3 is incorporated into the vein blood vessel of human body, needle stand 6 is then pinched and notch needle tubing 4 is extracted from human vein blood vessel, conduit 3
Just it is trapped in the vein blood vessel of human body, when notch needle tubing 4 is moved to the deck 8 of Needlestick prevention device 20, deck 8 blocks notch
Needle tubing, while the shell fragment 9 on Needlestick prevention device 20 blocks the needle point of notch needle tubing 4, and Needlestick prevention device 20 is fixed on into notch
At the needle point of needle tubing 4, then the notch needle tubing 4 with Needlestick prevention device 20 is pulled out out of catheter block 1, now notch needle tubing 4
Needle tip be completely hidden in Needlestick prevention device 20, avoid notch needle tubing 4 and stab medical personnel and cause cross-infection, carry
The high security of venous detaining needle.
In one embodiment, the notch needle tubing is provided with blood back groove 22；The notch needle tubing is after human body extraction, institute
Blood back groove 22 is stated to be moved at the deck 8, and by the clamping of deck 8.
Specifically, medical personnel carry out anti-venous indwelling needle after correctly puncturing to patient, and conduit 3 is incorporated into
The vein blood vessel of human body, then pinch needle stand 6 and notch needle tubing 4 is extracted from human vein blood vessel, conduit 3 is trapped in the quiet of human body
Arteries and veins is intravascular.When the blood back groove 22 on notch needle tubing 4 is moved to the deck 8 of Needlestick prevention device 20, deck 8 enters blood back groove
In 22, while the shell fragment 9 on Needlestick prevention device 20 blocks the needle point of notch needle tubing 4, and Needlestick prevention device 20 is fixed on into notch
At the needle point of needle tubing 4.Then the notch needle tubing 4 with Needlestick prevention device 20 is pulled out out of catheter block 1, now notch needle tubing 4
Needle tip be just completely hidden in Needlestick prevention device 20, effectively prevent notch needle tubing 4 and stab medical personnel and cause to intersect
Infection, improve the security of venous detaining needle.
In one embodiment, the deck 8 and valve element 12 are made up of medical macromolecular materials.Medical macromolecular materials are
Refer to manufacture human body viscera, vitro in organ, pharmaceutical dosage form and the polymeric material of medicine equipment, its source includes natural biological
High polymer material and synthesising biological high polymer material.Natural medical polymer materials are derived from naturally, including cellulose, crust
Element, hyaluronic acid, collagen, gelatin and sodium alginate etc.；Synthesis of medical high polymer material is the artificial conjunction by chemical method
Into be used for medical high polymer material, it is currently used have polyurethane, silicon rubber, polyester fiber, PVP,
Polyether-ether-ketone, polymethyl methacrylate, polyvinyl alcohol, PLA, polyethylene etc..Medical macromolecular materials are used for human body,
The life and health of people is directly connected to, there is good security and adaptability.
In one embodiment, the outside of flexible pipe 18 is provided with tongs 19, and the tongs 19 includes boss 23, groove
24 and snap fit 25；The boss 23 is used to coordinate with snap fit 25 clamps current limliting by flexible pipe 18, is provided with the boss 23 and is used to make
Decoction slow transits through the groove 24 of flexible pipe 18.As shown in figure 1, flexible pipe 18 is provided with tongs 19, the tongs 19 is incomplete
Enclosed construction, Fig. 3 are according to tongs structural representation provided in an embodiment of the present invention, as shown in figure 3, the tongs includes
Boss 23, groove 24 and snap fit 25.When patient needs to suspend transfusion, merge tongs 19, the decoction in flexible pipe is stopped stream
It is dynamic, when patient needs to recover transfusion, tongs 19 is opened, decoction is recovered flowing.
In one embodiment, tongs 19 is provided with multiple snap fits 25.Preferably, 3 snap fits are provided with the present embodiment.
As shown in figure 3, tongs 19 is provided with 3 snap fits 25, when tongs 19 is merged at different snap fits 25, the clamping of tongs 19
Degree is different so that flow velocity of the decoction in flexible pipe 18 is different., can by the way that tongs 19 is merged at different snap fits 25
Control flow velocity of the decoction in flexible pipe 18.
Positive pressure vein remaining needle provided in an embodiment of the present invention, including three-way connection, flexible pipe and needle tubing component, three-way connection
The connecting seat of one end connects needle tubing component by flexible pipe, and the other both ends of three-way connection are respectively equipped with positive pressure connector and cone joint,
When not infusing, three-way connection keeps sealing by elastic packing plug, valve element and connecting seat sealing ring, avoids air and impurity from entering
Enter；When external infusion device is extracted at cone joint, elastic packing plug closure seals cone joint, while connecting seat seals
Circle also functions to sealing function, avoids air and impurity from entering, prevents liquid leakage；When external infusion device takes out at positive pressure connector
When, spring release pressure is opened, and moves valve element, and then the second infusion channel volume is diminished, and it is logical to produce the transfusion of extruding second
Road inner liquid medicine flows to the normal pressure of flexible pipe, avoid screwing out decoction backflow caused by external infusion device joint caused by negative pressure or
Blood backflow, pre- blood-backflow preventing form bolt into venous detaining needle and blocked up；Connecting seat sealing ring makes connecting seat be connected with three simultaneously
Head is tightly connected, and sealed environment avoids venous blood excessive and air enters.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.Term " on ", " under " etc. refers to
The orientation or position relationship shown is based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and simplifies
Description, rather than the device or element of instruction or hint meaning must have specific orientation, with specific azimuth configuration and behaviour
Make, therefore be not considered as limiting the invention.Unless otherwise clearly defined and limited, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still can
It is enough that technical scheme described in foregoing individual embodiments is modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technical scheme of the present invention
Spirit and scope.
Claims (10)
1. a kind of positive pressure vein remaining needle, it is characterised in that described including three-way connection (11), flexible pipe (18) and needle tubing component
Three-way connection (11) one end is provided with connecting seat (10), and the connecting seat (10) connects the needle tubing component, institute by flexible pipe (18)
The other both ends for stating three-way connection (11) are respectively equipped with positive pressure connector (21) and cone joint (29), and the positive pressure connector (21) is outside
Surface is provided with the external screw thread (28) coordinated with external infusion device joint, between the positive pressure connector (21) and connecting seat (10) successively
Provided with valve element (12) and spring (16), the valve element (12) is slidingly sealed with positive pressure connector (21) to be connected, the spring (16) two
End is separately fixed on the valve element (12) and connecting seat (10), is provided with the three-way connection and is penetrated the cone joint and company
The first infusion channel (26) and the second infusion channel of the insertion positive pressure connector (21) and connecting seat (10) of joint chair (10)
(27)；The valve element (12) is used to after the completion of transfusion be moved the second infusion channel of compression (27) formation malleation by spring force；
Elastic packing plug (17) is provided with cone joint (29) port, the elastic packing plug (17) is provided with slit, the company
Joint chair (10) is tightly connected by connecting seat sealing ring (15) and the three-way connection (11).
2. positive pressure vein remaining needle according to claim 1, it is characterised in that the needle tubing component includes needle handle (6), led
Base (1), conduit (3) and notch needle tubing (4), described catheter block (1) one end are provided with conduit (3), and the other end connects the needle handle
(6) batching pig (5), is provided with the catheter block (1), described notch needle tubing (4) one end is fixed on the needle handle (6), another
End is placed in conduit (3) inside through the batching pig (5)；The catheter block (1) connects the connection by the flexible pipe (18)
Seat (10).
3. positive pressure vein remaining needle according to claim 1, it is characterised in that valve element (12) both ends and three-way connection
(11) contact position is respectively equipped with sealing ring (13) and lower seal (14), and the both ends of the valve element (12) pass through upper sealing
(13) and lower seal (14) is enclosed to be tightly connected with the three-way connection (11).
4. positive pressure vein remaining needle according to claim 2, it is characterised in that be provided with the outside of the conduit (3) and be used to prevent
The only exposed protective case (7) of notch needle tubing (4) needle point.
5. positive pressure vein remaining needle according to claim 2, it is characterised in that the catheter block (1) and conduit (3) pass through
Metal wedge (2) connects.
6. positive pressure vein remaining needle according to claim 2, it is characterised in that be provided with anti-acupuncture in the catheter block (1)
Device (20), the Needlestick prevention device (20) are arranged at the right side of the batching pig (5).
7. anti-venous indwelling needle according to claim 6, it is characterised in that the Needlestick prevention device (20) includes card
Seat (8) and the shell fragment (9) being assemblied on the deck, the shell fragment (9) are used to pin when the notch needle tubing (4) is extracted
The notch needle tubing (4).
8. anti-venous indwelling needle according to claim 6, it is characterised in that the notch needle tubing (4) is provided with back
Blood groove (22)；For the notch needle tubing (4) after human body extraction, the blood back groove (22) is moved to the deck (8) place, and by institute
Deck (8) is stated to be caught in.
9. positive pressure vein remaining needle according to claim 8, it is characterised in that the deck (8) and valve element (12) are by curing
It is made of high polymer material.
10. positive pressure vein remaining needle according to claim 1, it is characterised in that be provided with sealing on the outside of the flexible pipe (18)
Press from both sides (19), the tongs (19) includes boss (23), groove (24) and snap fit (25)；The boss (23) is used for and snap fit
(25) coordinate and flexible pipe (18) is clamped into current limliting, boss (23) place is provided with the groove for being used for making decoction slow transit through flexible pipe
(24)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884646.4A CN107569738A (en) | 2017-09-26 | 2017-09-26 | A kind of positive pressure vein remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884646.4A CN107569738A (en) | 2017-09-26 | 2017-09-26 | A kind of positive pressure vein remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107569738A true CN107569738A (en) | 2018-01-12 |
Family
ID=61039270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710884646.4A Pending CN107569738A (en) | 2017-09-26 | 2017-09-26 | A kind of positive pressure vein remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107569738A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619591A (en) * | 2018-05-31 | 2018-10-09 | 郑州迪奥医学技术有限公司 | Zero-pressure connector |
| CN112274728A (en) * | 2020-05-21 | 2021-01-29 | 山东朱氏药业集团有限公司 | Indwelling needle assembly with blood coagulation and anticoagulation functions switched and processing and manufacturing method |
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| CN102019010A (en) * | 2010-11-04 | 2011-04-20 | 陈永曦 | Catheter assembly of enclosed remaining needle with separated isolation assembly |
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN103948984A (en) * | 2014-04-11 | 2014-07-30 | 李泉 | Arterial remaining needle capable of displaying arterial pulsation |
| CN203935469U (en) * | 2014-03-27 | 2014-11-12 | 金富康 | Front end visible blood-flow remaining needle with threeway |
| WO2016086833A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle sustained release positive pressure apparatus |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019010A (en) * | 2010-11-04 | 2011-04-20 | 陈永曦 | Catheter assembly of enclosed remaining needle with separated isolation assembly |
| CN103071203A (en) * | 2012-12-12 | 2013-05-01 | 山东新华安得医疗用品有限公司 | Anti-acupuncture intravenous detaining needle |
| CN203935469U (en) * | 2014-03-27 | 2014-11-12 | 金富康 | Front end visible blood-flow remaining needle with threeway |
| CN103948984A (en) * | 2014-04-11 | 2014-07-30 | 李泉 | Arterial remaining needle capable of displaying arterial pulsation |
| WO2016086833A1 (en) * | 2014-12-01 | 2016-06-09 | 邹卫平 | Indwelling needle sustained release positive pressure apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619591A (en) * | 2018-05-31 | 2018-10-09 | 郑州迪奥医学技术有限公司 | Zero-pressure connector |
| CN108619591B (en) * | 2018-05-31 | 2024-02-09 | 郑州迪奥医学技术有限公司 | Zero pressure Joint |
| CN112274728A (en) * | 2020-05-21 | 2021-01-29 | 山东朱氏药业集团有限公司 | Indwelling needle assembly with blood coagulation and anticoagulation functions switched and processing and manufacturing method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |
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