CN105920702A - Rotary Y-shaped anti-thrombus indwelling needle - Google Patents
Rotary Y-shaped anti-thrombus indwelling needle Download PDFInfo
- Publication number
- CN105920702A CN105920702A CN201610484033.7A CN201610484033A CN105920702A CN 105920702 A CN105920702 A CN 105920702A CN 201610484033 A CN201610484033 A CN 201610484033A CN 105920702 A CN105920702 A CN 105920702A
- Authority
- CN
- China
- Prior art keywords
- piston
- needle
- rotary
- sealing
- preventing thrombosis
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/105—Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/20—Closure caps or plugs for connectors or open ends of tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1588—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
Abstract
The invention relates to the technical field of transfusion devices, and particularly relates to a rotary Y-shaped anti-thrombus indwelling needle which comprises a tee indwelling needle base and a seal piston, wherein the tee indwelling needle base is provided with a hollow cavity; the seal piston is slidably arranged in the hollow cavity; the rotary Y-shaped anti-thrombus indwelling needle further comprises a piston pushing body used for pushing the seal piston in a reciprocating mode; the seal piston is arranged at one end of the piston pushing body; the cylindrical surface of the piston pushing body is provided with a curved sliding chute; the inner wall of the tee indwelling needle is provided with a bulge matched with the curved sliding chute. According to the rotary Y-shaped anti-thrombus indwelling needle, after the transfusion needle is pulled out, the rotary piston pushing body enables the seal piston to compress a transfusion hole, and the transfusion hole is sealed, so that blood return is avoided, and thus blood is prevented from forming thrombus in a tee indwelling needle base.
Description
Technical field
The present invention relates to infusion set technical field, particularly relate to a kind of rotary Y type preventing thrombosis remaining needle.
Background technology
The use of remaining needle can reduce misery that patient causes because of venipuncture repeatedly and to the fear having an injection, and alleviates the head of a family
Impatience, it is simple to clinical application, anxious, the rescue medication of critical patient, alleviate the workload of nurse, reduce infant pain,
Thus venous detaining needle is in wide clinical application.After completing once to infuse, need to extract transfusion needle, existing remaining needle
After extracting transfusion needle, have one section of medicinal liquid backflow, and often occur blood to be back in indwelling needle tubing, form thrombosis,
Impact transfusion next time.
It is therefore desirable to provide a kind of remaining needle that can prevent from forming preventing thrombosis.
Summary of the invention
Present invention aims to the deficiencies in the prior art and a kind of rotary Y type preventing thrombosis remaining needle, sealing property are provided
Good, prevent thrombosis.
For achieving the above object, the one rotary Y type preventing thrombosis remaining needle of the present invention, including three-way indwelling needle needle stand and
Sealing piston, three-way indwelling needle needle stand is provided with cavity, seals piston and is slideably positioned in the inside of cavity；Also include for
Reciprocating seals the piston of piston and promotes body, seals piston and is installed on one end of piston promotion body, and piston promotes the cylinder of body
Face is provided with curve chute, and the inwall of three-way indwelling needle needle stand is provided with the projection coordinated with curve chute.
Preferably, also including that assembly, described three-way indwelling needle needle stand are provided with window, assembly is arranged at window, convex
Rise and be arranged at assembly.
Preferably, described assembly welds or glueds joint in window.
Preferably, described piston promotes the middle part of body to be provided with the pin passage facilitating insertion into transfusion needle, and pin passage passes through
It is through at piston and promotes body.
Preferably, also including sealed colloid, sealed colloid is arranged in described pin passage and is positioned at piston and promotes body
The other end.
Preferably, the outer wall of described sealing piston is arranged at intervals with the first sealing ring portion, the second sealing ring axially along
Portion, the external diameter in the first sealing ring portion is more than the external diameter in the second sealing ring portion.
Preferably, described sealing piston is cup-shaped, seals piston bush and is connected to one end of piston promotion body.
Preferably, the inwall of described sealing piston is provided with inner seal ring portion, and piston promotes one end of body to be provided with annular groove,
Inner seal ring portion is embedded in annular groove.
Preferably, described sealing piston is silica gel sealing piston, and the shore hardness sealing piston is 48HA ~ 52 HA.
Preferably, the shore hardness of described sealing piston is 50HA.
Beneficial effects of the present invention: the one rotary Y type preventing thrombosis remaining needle of the present invention, when rotating piston promotion body,
Protruding along curve chute slip, thus promote piston to promote body to move along its axis, thus band movable sealing piston moves, threeway
One end of needle seat of remaining needle is provided with indwelling after transfusion and passes through infusion hole and three in indwelling needle tubing in the patient, indwelling needle tubing
Logical needle seat of remaining needle conducting, seals and can realize sealing infusion hole after piston is pressed in infusion hole；Transfusion needle inserts this rotary Y
Type preventing thrombosis remaining needle can realize transfusion, after extracting transfusion needle, rotates piston and promotes body to make sealing piston be pressed in infusion hole, make
Infusion hole closes, thus avoids blood back, it is to avoid blood forms thrombosis at three-way indwelling needle needle stand.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the sectional structure schematic diagram of the present invention.
Fig. 3 is that the piston of the present invention promotes body structural representation.
Fig. 4 is that the piston of the present invention promotes body longitudinal direction sectional structure schematic diagram.
Fig. 5 is projection and the perspective view of assembly of the present invention.
Fig. 6 is the sectional structure schematic diagram sealing piston of the present invention.
Fig. 7 is the sectional structure schematic diagram of the three-way indwelling needle needle stand of the present invention.
Reference includes:
1 three-way indwelling needle needle stand
11 protruding 12 assembly 13 window 14 cavities
2 seal piston
21 first inner seal ring portion of sealing ring portion 23 of sealing ring portions 22 second
3 pistons promote body
31 curve chute 32 pin passage 33 annular grooves
4 sealed colloids
A cell wall and piston promote the angle between the axis of rotation of body.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Fig. 1 ~ 7, the one rotary Y type preventing thrombosis remaining needle of the present invention, including three-way indwelling needle needle stand 1 and close
Envelope piston 2, three-way indwelling needle needle stand 1 is provided with cavity 14, seals piston 2 and is slideably positioned in the inside of cavity 14；Also wrap
Including the piston promotion body 3 sealing piston 2 for reciprocating, seal piston 2 and be installed on one end of piston promotion body 3, piston pushes away
The face of cylinder of kinetoplast 3 is provided with curve chute 31, and the inwall of three-way indwelling needle needle stand 1 is provided with convex with what curve chute 31 coordinated
Play 11.Piston promotes body 3 to be similar to cylindrical cam, and when rotating piston promotion body 3, protruding 11 slide along curve chute 31, thus
Promoting piston to promote body 3 to move along its axis, thus band movable sealing piston 2 moves, one end of three-way indwelling needle needle stand 1 is provided with
After transfusion, indwelling is turned on three-way indwelling needle needle stand 1 by infusion hole in indwelling needle tubing in the patient, indwelling needle tubing, seals
Piston 2 can realize after being pressed in infusion hole sealing infusion hole；Transfusion needle inserts this rotary Y type preventing thrombosis remaining needle and can realize
Transfusion, after extracting transfusion needle, rotates piston and promotes body 3 to make sealing piston 2 be pressed in infusion hole, make infusion hole close, thus keep away
Exempt from blood back, it is to avoid blood forms thrombosis at three-way indwelling needle needle stand 1.
Concrete, as shown in Figure 4, curve chute 31 is surrounded by bottom land and cell wall, promotes the vertical profile structure of body 3 to show at piston
In intention, cell wall and piston promote the angle a between the axis of rotation of body 3 to be 40 ° ~ 50 °, and concrete a can be 45 °.This
Bright one rotary Y type preventing thrombosis remaining needle, projection 11 is slided smooth and easy when relatively sliding along curve chute 31.
Concrete, the end of curve chute 31 can be provided with horizontal lock section, when protruding 11 are positioned at horizontal lock section
Time, the thrust formed along the blood pressure that piston promotion body 3 is axial cannot be pushed piston promotion body 3 open, thus realize lock function, keep away
Exempt from blood pressure and push sealing piston 2 open, improve sealing effectiveness.
Preferably, also including that assembly 12, described three-way indwelling needle needle stand 1 are provided with window 13, assembly 12 is arranged at
Window 13, protruding 11 are arranged at assembly 12.Concrete, described assembly 12 welds or glueds joint in window 13.It is internally provided with
The three-way indwelling needle needle stand 1 of protruding 11 cannot withdrawing pattern, the projection 11 of the present invention is arranged at assembly 12, three-way indwelling needle needle stand 1
With assembly 12 molding respectively, weld after molding, reduce production cost.
Concrete, as it is shown in fig. 7, window 13 can be semi-transparent window, the outer wall of three-way indwelling needle needle stand 1 is provided with accommodating group
The groove of dress body 12, the bottom land of groove is provided with the through hole for wearing protruding 11.Assembly 12 is positioned over groove and then welds
Or glued joint, it is simple to assemble processing.
Preferably, described piston promotes the middle part of body 3 to be provided with the pin passage 32 facilitating insertion into transfusion needle, pin passage
32 promote body 3 through piston.Enter in the patient after transfusion needle can being passed pin passage 32 and running through sealing piston 2, enter
One step, also include sealed colloid 4, sealed colloid 4 be arranged at described pin passage 32 in and be positioned at piston and promote another of body 3
End.After extracting transfusion needle from pin passage 32, seal piston 2 and the equal resilience of sealed colloid 4 make pin passage 32 seal, it is to avoid
Blood back, avoids pollutant to enter pin passage 32 simultaneously.
As shown in Figure 6, the outer wall of described sealing piston 2 is arranged at intervals with the first sealing ring portion 21, second axially along
Sealing ring portion 22, the external diameter in the first sealing ring portion 21 is more than the external diameter in the second sealing ring portion 22.During assembling, seal piston 2 and enter
After cavity 14, all there is elastic deformation, the first sealing ring portion 21 and second in the first sealing ring portion 21 and the second sealing ring portion 22
The inwall of cavity 14 is all close in sealing ring portion 22, seals between the first sealing ring portion 21 and the second sealing ring portion 22 meanwhile
Being formed with one section of air ring, air ring improves the sealing effectiveness sealing piston 2.
Preferably, described sealing piston 2 is cup-shaped, seals piston 2 and is socketed on one end of piston promotion body 3.The present invention's
A kind of rotary Y type preventing thrombosis remaining needle is easy to assemble, good sealing effect.
Preferably, the inwall of described sealing piston 2 is provided with inner seal ring portion 23, and piston promotes one end of body 3 to be provided with
Annular groove 33, inner seal ring portion 23 is embedded in annular groove 33.Inner seal ring portion 23 improves sealing piston 2 and piston promotes between body 3
Sealing effectiveness, it is to avoid after transfusion needle inserts pin passage 32, medicinal liquid is from sealing spilling between piston 2 and piston promotion body 3.With
Time, it is to avoid transfusion needle is after pin passage 32 is extracted, and air pressure, from sealing leakage between piston 2 and piston promotion body 3, improves close
Envelope effect, avoids the formation of thrombosis further.
Preferably, described sealing piston 2 is silica gel sealing piston, and the shore hardness sealing piston 2 is 48HA ~ 52 HA.Tool
Body, the shore hardness of described sealing piston 2 is 50HA.The hardness sealing piston 2 is the weight that impact seals piston 2 sealing property
Wanting factor, the sealing piston 2 of the present invention is effective with the inwall of three-way indwelling needle needle stand 1 laminating tight seal；Transfusion needle is from inserting
Sealing piston 2 can be punctured when needle passageway 32 is inserted into the patient, form an interim hole in the end sealing piston 2, the present invention's
Seal piston 2 resilience good, at transfusion needle after pin passage 32 is extracted, seal piston 2 and quickly make interim hole close, it is to avoid medicine
Liquid refluxes, and improves sealing effectiveness.
Understanding the present invention in sum is to have above-described good characteristic, is made it on using, promotes in the past
The usefulness that do not has in technology and there is practicality, become the product of a great practical value.
Above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention's
Thought, the most all will change, and this specification content should not be construed as the present invention
Restriction.
Claims (10)
1. a rotary Y type preventing thrombosis remaining needle, it is characterised in that: include three-way indwelling needle needle stand (1) and seal piston
(2), three-way indwelling needle needle stand (1) is provided with cavity (14), seals piston (2) and is slideably positioned in the inside of cavity (14)；
Also include that the piston sealing piston (2) for reciprocating promotes body (3), seal piston (2) and be installed on piston promotion body (3)
One end, piston promote body (3) the face of cylinder be provided with curve chute (31), the inwall of three-way indwelling needle needle stand (1) be provided with
The projection (11) that curve chute (31) coordinates.
One the most according to claim 1 rotary Y type preventing thrombosis remaining needle, it is characterised in that: also include assembly
(12), described three-way indwelling needle needle stand (1) is provided with window (13), and assembly (12) is arranged at window (13), and protruding (11) set
It is placed in assembly (12).
One the most according to claim 2 rotary Y type preventing thrombosis remaining needle, it is characterised in that: described assembly (12)
Weld or glued joint in window (13).
One the most according to claim 1 rotary Y type preventing thrombosis remaining needle, it is characterised in that: described piston promotes body
(3) middle part is provided with the pin passage (32) facilitating insertion into transfusion needle, and pin passage (32) promotes body (3) through piston.
One the most according to claim 4 rotary Y type preventing thrombosis remaining needle, it is characterised in that: also include sealed colloid
(4), sealed colloid (4) is arranged in described pin passage (32) and is positioned at piston and promotes the other end of body (3).
One the most according to claim 1 rotary Y type preventing thrombosis remaining needle, it is characterised in that: described sealing piston (2)
Outer wall be arranged at intervals with the first sealing ring portion (21), the second sealing ring portion (22), the first sealing ring portion (21) axially along
External diameter more than the external diameter in the second sealing ring portion (22).
One the most according to claim 6 rotary Y type preventing thrombosis remaining needle, it is characterised in that: described sealing piston (2)
Cup-shaped, seal piston (2) and be socketed on one end of piston promotion body (3).
One the most according to claim 7 rotary Y type preventing thrombosis remaining needle, it is characterised in that: described sealing piston (2)
Inwall be provided with inner seal ring portion (23), piston promotes one end of body (3) to be provided with annular groove (33), and inner seal ring portion (23) are embedding
In annular groove (33).
9. according to the rotary Y type preventing thrombosis remaining needle of the one described in any one in claim 1 ~ 8, it is characterised in that: institute
Stating sealing piston (2) is silica gel sealing piston, and the shore hardness sealing piston (2) is 48HA ~ 52 HA.
One the most according to claim 9 rotary Y type preventing thrombosis remaining needle, it is characterised in that: described sealing piston
(2) shore hardness is 50HA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484033.7A CN105920702A (en) | 2016-06-28 | 2016-06-28 | Rotary Y-shaped anti-thrombus indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610484033.7A CN105920702A (en) | 2016-06-28 | 2016-06-28 | Rotary Y-shaped anti-thrombus indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105920702A true CN105920702A (en) | 2016-09-07 |
Family
ID=56828873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610484033.7A Pending CN105920702A (en) | 2016-06-28 | 2016-06-28 | Rotary Y-shaped anti-thrombus indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105920702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237441A (en) * | 2016-08-31 | 2016-12-21 | 于燕 | A kind of multifunctional coaxial trocar sheath self-sealing venous indwelling device |
| CN109045398A (en) * | 2018-09-27 | 2018-12-21 | 刘明源 | A kind of remaining needle and remaining needle assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040230160A1 (en) * | 2000-06-22 | 2004-11-18 | Erblan Surgical Inc. | Safety trocar including sealing member |
| CN200960338Y (en) * | 2006-09-30 | 2007-10-17 | 林作钱 | Syringe rubber plug |
| CN101229412A (en) * | 2007-12-10 | 2008-07-30 | 张亚平 | Y-type safe arteriovenous remaining needle with needle-free interface plus pressure closed-type valve |
| CN202554716U (en) * | 2011-05-08 | 2012-11-28 | 新乡市驼人医疗器械有限公司 | Needle-free positive-pressure double-safety indwelling needle |
| CN103285450A (en) * | 2013-03-25 | 2013-09-11 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
| WO2014019200A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Indwelling needle with syringe type vacuum blood collector |
| CN203989265U (en) * | 2014-06-27 | 2014-12-10 | 孙红才 | A kind of preventing thrombosis venous detaining needle |
| CN204072962U (en) * | 2014-09-01 | 2015-01-07 | 谢世庚 | Spiral push-rod preventing thrombosis venous detaining needle |
-
2016
- 2016-06-28 CN CN201610484033.7A patent/CN105920702A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040230160A1 (en) * | 2000-06-22 | 2004-11-18 | Erblan Surgical Inc. | Safety trocar including sealing member |
| CN200960338Y (en) * | 2006-09-30 | 2007-10-17 | 林作钱 | Syringe rubber plug |
| CN101229412A (en) * | 2007-12-10 | 2008-07-30 | 张亚平 | Y-type safe arteriovenous remaining needle with needle-free interface plus pressure closed-type valve |
| CN202554716U (en) * | 2011-05-08 | 2012-11-28 | 新乡市驼人医疗器械有限公司 | Needle-free positive-pressure double-safety indwelling needle |
| WO2014019200A1 (en) * | 2012-08-02 | 2014-02-06 | Zhang Jianming | Indwelling needle with syringe type vacuum blood collector |
| CN103285450A (en) * | 2013-03-25 | 2013-09-11 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
| CN203989265U (en) * | 2014-06-27 | 2014-12-10 | 孙红才 | A kind of preventing thrombosis venous detaining needle |
| CN204072962U (en) * | 2014-09-01 | 2015-01-07 | 谢世庚 | Spiral push-rod preventing thrombosis venous detaining needle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106237441A (en) * | 2016-08-31 | 2016-12-21 | 于燕 | A kind of multifunctional coaxial trocar sheath self-sealing venous indwelling device |
| CN106237441B (en) * | 2016-08-31 | 2019-08-09 | 于燕 | A kind of multifunctional coaxial outer tube self-sealing venous indwelling device |
| CN109045398A (en) * | 2018-09-27 | 2018-12-21 | 刘明源 | A kind of remaining needle and remaining needle assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |