CN104189975A - Remaining needle with quick blood returning function - Google Patents
Remaining needle with quick blood returning function Download PDFInfo
- Publication number
- CN104189975A CN104189975A CN201410490499.9A CN201410490499A CN104189975A CN 104189975 A CN104189975 A CN 104189975A CN 201410490499 A CN201410490499 A CN 201410490499A CN 104189975 A CN104189975 A CN 104189975A
- Authority
- CN
- China
- Prior art keywords
- needle
- hole
- catheter block
- puncture needle
- puncture
- 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
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a remaining needle with a quick blood returning function. The remaining needle comprises a puncture needle, a puncture needle tube connected with the puncture needle, a needle seat and a catheter seat. The puncture needle tube is fixedly mounted on the needle seat. The catheter seat is connected with the needle seat and internally provided with a cavity. The remaining needle is characterized in that the catheter seat is made of a transparent material, the puncture needle tube extends into the cavity of the catheter seat to be plugged into the needle seat, and a first through hole, formed in the tube wall of the puncture needle tube, is further formed in the cavity of the catheter seat and used for puncturing the needle tube to enable the same to be communicated with the cavity of the catheter seat. In this way, when a medical worker punctures the vein of a patient, the blood of the patient flows into the cavity of the catheter seat, made of the transparent material, through the puncture needle and the first through hole, and by observing whether or not the blood returning occurs in the first through hole, the medical worker judges whether or not the puncture needle punctures into the vein of the patient.
Description
Technical field
The present invention relates to medical instruments field, relate in particular to a kind of remaining needle with sensitive blood-return function.
Background technology
Remaining needle is a kind of for repeatedly carrying out within a certain period of time the medical apparatus and instruments of infusion treatment.Because conduit is soft and flexible, when catheter retaining is in blood vessel, conduit can still can freely move the position of catheter retaining along with blood vessel synchronous zigzag, does not have the danger of puncture vein.Therefore, relatively common scalp acupuncture, is used retention needle infusion to have more safety, and the sense of discomfort when reducing patient and infusing.
But remaining needle of the prior art, in the part that all comes with some shortcomings aspect processing and fabricating and serviceability.A kind of venous detaining needle that can see rapidly blood back for example, is disclosed in the Chinese utility model patent that the patent No. is 03250617.1, this remaining needle is provided with side opening on puncture needle sidewall, when medical personnel puncture to vein blood vessel, by the blood flow in side opening, out judge whether the needle point of puncture needle thrusts blood vessel.Its structure and operation principle be as shown in Figure 6:
This containing needle structure as shown in Figure 6, Figure 7, comprises remaining needle 102, remaining needle outer tube 103, remaining needle gap 104, remaining needle base 105, remaining needle enclosed space 106.On the sidewall of remaining needle 102 near needle point, there is a side opening 101.Before retained needle puncture, first its inner air all to be discharged.Medicinal liquid enters remaining needle enclosed space 106, orders about air successively by remaining needle enclosed space 106, remaining needle gap 104, side opening 101, from remaining needle 102, goes out to discharge, and now remaining needle inside is full of medicinal liquid.
In retained needle puncture process, the path of the access instruments of blood is substantially contrary with above Bas Discharged path.Needle point enters after vein blood vessel, by remaining needle 102, side opening 101, remaining needle gap 104, finally enters the remaining needle enclosed space 106 in transparent remaining needle base 105 successively, and medical personnel judge puncture needle intravasation accordingly.
And for current remaining needle, because the blood of remaining needle need to enter in remaining needle enclosed space 106 by remaining needle gap 104, so very high with the dimensional fits requirement of remaining needle outer tube 103 to remaining needle 102, this has also increased the manufacturing cost of remaining needle.In remaining needle use procedure, sometimes because the remaining needle enclosed space 106 between puncture needle and conduit is too narrow and small, cause remaining needle blood when puncture to be difficult for passing through, so that be difficult to observe blood back, and make medical personnel cannot judge whether needle point thrusts in blood vessel, cause puncture procedure failure, especially for small dimension remaining needle, the probability of generation is higher.Because the sectional dimension of indwelling needle catheter is fixed, for head it off, the gap that some producer adopts the less puncture needle of external diameter to increase puncture needle and conduit, although be difficult for the problem of blood back while having solved like this retained needle puncture, but brought again draw point too soft simultaneously, the shortcoming of more difficult operation during puncture.Therefore, existing remaining needle, particularly small dimension remaining needle are difficult for blood back while there is puncture always, or not easy-operating defect.
Summary of the invention
The invention provides a kind of sensitive blood return indwelling needle, comprise piercing needle, the puncture needle tubing being connected with described piercing needle, the needle stand being connected with described puncture needle tubing, be connected with described needle stand and the inner catheter block that is provided with cavity, be set in the outside conduit being connected with described catheter block of described puncture needle tubing;
Described catheter block and described conduit all adopt light transmissive material to make;
Described puncture needle tubing extends to described catheter block cavity inside, be inserted on described needle stand, the tube wall of described puncture needle tubing is provided with the first through hole, and described the first through hole is arranged in described catheter block cavity, for described puncture needle tubing is communicated with described catheter block cavity;
Between described conduit and described puncture needle tubing, be provided with gap, and described gap is communicated with described catheter block cavity sealing;
The tube wall of described puncture needle tubing is also provided with the second through hole, and described the second through hole is arranged in the gap between described conduit and described puncture needle tubing;
Described the second through hole is used for making described puncture needle tubing to communicate with described gap.
Preferably, described catheter block cavity inside, is provided with batching pig near described needle stand one side;
Described batching pig outer wall and described catheter block cavity inner wall fit tightly, and described puncture needle tubing was inserted described batching pig and is fixedly connected with described needle stand; Described batching pig is for guaranteeing the sealing of described catheter block cavity inside.
Preferably, described needle stand and described catheter block adopt expanded joint mode, or buckle mode connects.
Preferably, described catheter block is provided with the bifurcated pipe being communicated with described cavity;
Described sensitive blood return indwelling needle also comprises: for delivery of the extension tube of medicinal liquid, described extension tube is connected with described bifurcated pipe.
Preferably, also comprise: the threeway seat being connected with described extension tube, described threeway seat is for external medicinal liquid.
Preferably, described extension tube lateral wall is provided with pipe clamp;
Described pipe clamp is provided with bar hole, and the aperture, one end of described bar hole is greater than the diameter of described extension tube, and the other end aperture of described bar hole is less than the double thickness of described extension tube.
Preferably, described needle stand outer setting has single-blade needle handle, and the surface of described single-blade needle handle is provided with a plurality of semicircle shape projections.
Preferably, described batching pig adopts software silica gel material, or soft composite material making, or cotton material is made.
As can be seen from the above technical solutions, the present invention has the following advantages:
The puncture needle tubing being connected with piercing needle extends to the cavity inside that adopts the catheter block that light transmissive material makes, puncture needle tubing is inserted into and on the needle stand being connected with catheter block, is fixed on catheter block cavity inside, the tube wall of puncture needle tubing is provided with the first through hole, the first through hole is arranged in described catheter block cavity, and the cavity of catheter block is in communication with the outside by the first through hole and puncture needle.
Due to puncture needle tubing tube wall be provided with the first through hole, the first through hole is arranged in described catheter block cavity, when medical personnel puncture to patient's vein blood vessel, in the cavity of the catheter block that patient's blood is made by puncture needle tubing and the first through hole inflow employing light transmissive material, whether medical personnel can occur that blood back judges whether puncture needle has thrust patient's vein blood vessel by observing the first through hole.
The tube wall of described puncture needle tubing is also provided with the second through hole, and described the second through hole is arranged in the gap between described conduit and described puncture needle tubing; Described the second through hole is used for making described puncture needle tubing to communicate with described gap.
Because piercing needle and the second through hole distance is very near, it is very short that blood in Venous Blood pipe flows to the required time of the second through hole from piercing needle, firm the putting in place as long as piercing needle punctures, will observe the blood back from vein blood vessel from the second through hole immediately, thereby can make medical personnel when patient's vein blood vessel is punctured, can reduce or avoid lancet puncture not in place or penetrate the phenomenon of blood vessel rear wall, improve medical personnel's work efficiency, to patient, reduce misery.
In the present invention, puncture needle tubing tube wall at catheter block cavity inside, the first through hole is set respectively, in the gap between described conduit and described puncture needle tubing, the second through hole is set.Only avoided like this second through hole being set and the gap because of between puncture needle tubing and conduit that causes is too narrow and small at puncture needle tubing, cause piercing needle blood when puncture to be difficult for entering gap by the second through hole, so that be difficult to observe blood back, and make medical personnel cannot judge whether piercing needle thrusts in blood vessel, cause puncture procedure failure.
Term " first " in description of the present invention and claims and above-mentioned accompanying drawing, " second ", " the 3rd " " 4th " etc. (if existence) are for distinguishing similar object, and needn't be for describing specific order or precedence.The data that should be appreciated that such use suitably can exchanged in situation, so as embodiments of the invention described herein can with except diagram here or describe those order enforcement.In addition, term " comprises " and " having " and their any distortion, is intended to be to cover not exclusive comprising.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in describing be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the overall structure figure of the embodiment of sensitive blood return indwelling needle provided by the invention;
Fig. 2 is the puncture needle tubing of embodiment of sensitive blood return indwelling needle provided by the invention and the structure chart of needle stand;
Fig. 3 is the catheter block of embodiment and the local structural graph of puncture needle tubing of sensitive blood return indwelling needle provided by the invention;
Fig. 4 is the puncture needle tubing of another embodiment of sensitive blood return indwelling needle provided by the invention and the structure chart of needle stand;
Fig. 5 is the catheter block of another embodiment and the local structural graph of puncture needle tubing of sensitive blood return indwelling needle provided by the invention;
Fig. 6 is the structural representation of the venous detaining needle piercing assembly of prior art;
Fig. 7 is the local enlarged diagram of the venous detaining needle piercing assembly of prior art.
Description of reference numerals:
1 puncture needle tubing, 2 needle stands, 3 conduits, 4 catheter blocks, 5 batching pigs, 6 extension tubes, 7 pipe clamps, 8 threeway seats, 9 piercing needles, 12 second through holes, 13 first through holes, 14 bifurcated pipes, 15 single-blade needle handles, 31 gaps, 41 cavitys
The specific embodiment
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable; to use specific embodiment and accompanying drawing below; technical scheme to the present invention's protection is clearly and completely described; obviously; the embodiments described below are only the present invention's part embodiment, but not whole embodiment.Embodiment based in this patent, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of this patent protection.
The present embodiment provides a kind of sensitive blood return indwelling needle, refers to Fig. 1, shown in Fig. 2 and Fig. 3, comprise puncture needle, the puncture needle tubing 1 being connected with described piercing needle 9, the needle stand 2 being connected with described puncture needle tubing 1, be connected with described needle stand 2, and the inner catheter block 4 that is provided with cavity 41; Described catheter block 4 adopts light transmissive material to make, described puncture needle tubing 1 extends to described catheter block cavity 41 inside, be inserted on described needle stand 2, the tube wall of described puncture needle tubing 1 is provided with the first through hole 13, described the first through hole 13 is arranged in described catheter block cavity 41, for described puncture needle tubing 1 is communicated with described catheter block cavity 41.
Hence one can see that, the puncture needle tubing 1 being connected with piercing needle 9 extends to cavity 41 inside that adopt the catheter block that light transmissive material makes, puncture needle tubing 1 is inserted into and on the needle stand 2 being connected with catheter block 4, is fixed on catheter block cavity 41 inside, the tube wall of puncture needle tubing 1 is provided with the first through hole 13, the first through hole 13 is arranged in described catheter block cavity 41, and the cavity 41 of catheter block is in communication with the outside by the first through hole 13 and piercing needle 9.
Tube wall due to puncture needle tubing 1 is provided with the first through hole 13 like this, the first through hole 13 is arranged in described catheter block 4 cavitys, when medical personnel puncture to patient's vein blood vessel, in the cavity of the catheter block 4 that patient's blood is made by piercing needle 9 and the first through hole 13 inflow employing light transmissive materials, whether medical personnel can occur that blood back judges whether piercing needle 9 has thrust patient's vein blood vessel by observing the first through hole 13.
Because piercing needle 9 is very near with the first through hole 13 distances that are arranged at catheter block 4 cavitys, to flow to the required time of the first through hole 13 very short from the syringe needle of puncture needle tubing 1 for blood in Venous Blood pipe, as long as piercing needle 9 punctures of puncture needle tubing 1 just put in place, will observe the blood back from vein blood vessel from the first through hole 13 immediately, thereby can make medical personnel when patient's vein blood vessel is punctured, can reduce or avoid lancet puncture not in place or penetrate the phenomenon of blood vessel rear wall, improve medical personnel's work efficiency, to patient, reduce misery.
And the sensitive blood return indwelling needle of this programme do not change existing operational approach, medical worker does not need learning manipulation rules again, and the sensitive blood return indwelling needle of this programme can be promoted the use of very soon.
In the present embodiment, also comprise: be set in the outside conduit 3 being connected with described catheter block 4 of described puncture needle tubing 1; Between described conduit 3 and described puncture needle tubing 1, be provided with gap 31, and described gap 31 is communicated with described catheter block 4 cavity sealings.
In the present embodiment, described catheter block cavity 41 inside, are provided with batching pig 5 near described needle stand 2 one sides; Described batching pig 5 outer walls and described catheter block cavity 41 inwalls fit tightly, and described puncture needle tubing 1 was inserted described batching pig 5 and is fixedly connected with described needle stand 2; Described batching pig 5 is for guaranteeing the sealing of described catheter block cavity 41 inside.
In the present embodiment, described needle stand 2 adopts expanded joint mode with described catheter block 4, or buckle mode connects.In order to guarantee the sealing of needle stand 2 and catheter block connecting portion, batching pig 5 adopts software silica gel material, or soft composite material is made, or cotton material is made, can guarantee that like this batching pig 5 outer walls and catheter block cavity 41 inwalls fit tightly, puncture needle tubing 1 has good sealing with the plant position of batching pig 5, and then guarantees the sealing of catheter block cavity 41 inside, guarantee catheter block cavity 41 cleaning inside health, catheter block cavity 41 only can be in communication with the outside by piercing needle 9.
In the present embodiment, described catheter block 4 is provided with the bifurcated pipe 14 being communicated with described cavity 41; Described sensitive blood return indwelling needle also comprises: for the extension tube 6 being connected with medicinal liquid, described extension tube 6 is connected with described bifurcated pipe 14.With the threeway seat 8 that described extension tube 6 is connected, described threeway seat 8 is for external medicinal liquid.Be understandable that: catheter block 4 is approximate Y-shaped structure, and bifurcated pipe 14 is communicated with extension tube 6, and by the external medicinal liquid of threeway seat 8, to patient, infuses.
In the present embodiment, in order to control the flow velocity of medicinal liquid, in described extension tube 6 lateral walls, be provided with pipe clamp 7; Described pipe clamp 7 is provided with bar hole, and the aperture, one end of described bar hole is greater than the diameter of described extension tube 6, and the other end aperture of described bar hole is less than the double thickness of described extension tube 6.Be understandable that, when the aperture of extension tube 6 in bar hole is greater than the diameter of described extension tube 6, the flow velocity of medicinal liquid is the fastest, and extension tube 6 is clamped.When the aperture of extension tube 6 in bar hole is less than the double thickness of described extension tube 6, medicinal liquid stops flowing, because extension tube 6 is clamped, and the tube wall of extension tube 6 is fitted, and the inner tight of extension tube 6 passes through medicinal liquid.
In the present embodiment, described needle stand 2 outer setting have single-blade needle handle 15, and the surface of described single-blade needle handle 15 is provided with a plurality of semicircle shape projections.Single-blade needle handle 15, for when medical personnel puncture, is convenient to hand-held sensitive blood return indwelling needle, and is provided with a plurality of semicircle shape projections at single-blade needle handle 15, plays shoe, guarantees the accuracy of puncture.
In order to explain fully technical solutions according to the invention, with concrete embodiment, be explained below: the puncture needle tubing 1 being connected with piercing needle 9 extends to cavity 41 inside that adopt the catheter block that light transmissive material makes, puncture needle tubing 1 is inserted into and on the needle stand 2 being connected with catheter block 4, is fixed on catheter block cavity 41 inside, the tube wall of puncture needle tubing 1 is provided with the first through hole 13, the first through hole 13 is arranged in described catheter block cavity 41, and the cavity 41 of confined bed base is in communication with the outside by the first through hole 13 and piercing needle 9.
Before puncture, open pipe clamp 7, make medicinal liquid flow into cavity 41.Medicinal liquid is through discharging sensitive blood return indwelling needle internal gas by the first through hole 13 and piercing needle 9.
In when puncture, after piercing needle 9 intravasations, blood is along piercing needle 9 and puncture needle tubing 1, enters cavity 41 inside that adopt the catheter block that light transmissive material makes through the first through hole 13, and medical worker observes blood back by transparent conduit seat.Here blood is without the gap 31 through between puncture needle 1 and conduit 3, avoided in prior art, because of the gap 31 between puncture needle tubing 1 and conduit 3 too narrow and small, cause piercing needle 9 blood when puncture to be difficult for passing through, so that be difficult to observe blood back, and make medical personnel cannot judge whether needle point thrusts in blood vessel, cause puncture procedure failure, especially for small dimension piercing needle 9, the probability of generation is higher.
In above-mentioned technical scheme, in discharging inner air process, the air in gap 31 likely cannot emptying, and in follow-up infusion process, this part air can enter human vas with medicinal liquid, and patient is caused to potential hazard.
Further refer to Fig. 4 in conjunction with shown in Fig. 5, the tube wall of described puncture needle tubing 1 is also provided with the second through hole 12, and described the second through hole 12 is arranged in the gap 31 between described conduit 3 and described puncture needle tubing 1; Described the second through hole 12 is for making described puncture needle tubing 1 and described conduit 3 communicate with the gap between described puncture needle tubing 1.
Concrete, puncture needle tubing 1 arranges the second through hole 12 in the position near piercing needle 9, at interior first through hole 13 that arranges of described catheter block cavity 41; The second through hole 12 is positioned at 31 places, gap of puncture needle tubing 1 and conduit 3, and near piercing needle 9 front positions.The inner cavity 41 that forms of catheter block 4, cavity 41 communicates with the external world by the first through hole 13, the second through hole 12 and puncture needle tubing 1.
The tube wall of described puncture needle tubing 1 is also provided with the second through hole 12, and described the second through hole 12 is arranged in the gap 31 between described conduit 3 and described puncture needle tubing 1; Described the second through hole 12 is for making described puncture needle tubing 1 communicate with described gap 31.
Due to piercing needle 9 and the second through hole 12 distance very near, it is very short that blood in Venous Blood pipe flows to the required time of the second through hole 12 from piercing needle 9, as long as firm the putting in place of piercing needle 9 puncture, will observe the blood back from vein blood vessel from the second through hole 12 immediately, thereby can make medical personnel when patient's vein blood vessel is punctured, can reduce or avoid lancet puncture not in place or penetrate the phenomenon of blood vessel rear wall, improve medical personnel's work efficiency, to patient, reduce misery.
In the present invention, the tube wall at puncture needle tubing 1 arranges the first through hole 13 in catheter block cavity 41 inside respectively, interior second through hole 12 that arranges in gap 31 between described conduit 3 and described puncture needle tubing 1.Only avoided like this second through hole 12 being set and the gap 31 because of between puncture needle tubing 1 and conduit 3 that causes is too narrow and small at puncture needle tubing 1, cause piercing needle 9 blood when puncture to be difficult for entering gap 31 by the second through hole 12, so that be difficult to observe blood back, and make medical personnel cannot judge whether piercing needle 9 thrusts in blood vessel, cause puncture procedure failure.Especially for the piercing needle 9 of small dimension, the probability of generation is higher.
Because the sectional dimension of conduit 3 is fixed, for head it off, some producer adopts the less piercing needle 9 of external diameter to increase the gap 31 of puncture needle tubing 1 and conduit 3, although be difficult for the problem of blood back while having solved like this puncture, but brought again piercing needle 9 too soft simultaneously, the shortcoming of more difficult operation during puncture.Therefore, the tube wall at puncture needle tubing 1 arranges respectively the first through hole 13 and the second through hole 12 simultaneously, can avoid only arranging the problems referred to above that the second through hole 12 brings.Even when the tube wall of puncture needle tubing 1 arranges the first through hole 13 and the second through hole 12, occur that gap 31 is too narrow and small simultaneously, cause piercing needle 9 blood when puncture to be difficult for entering gap 31 by the second through hole 12, so that be difficult to observe blood back.Blood back can enter cavity 41 by the first through hole 13, can adopt the cavity 41 of the catheter block that light transmissive material makes whether to occur that blood back judges whether puncture needle has thrust patient's vein blood vessel by observation.
Before puncture, open pipe clamp 7, make medicinal liquid flow into cavity 41.Medicinal liquid is through passing through the second through hole 12 and the first through hole 13, by piercing needle 9, sensitive blood return indwelling needle internal gas is discharged, like this by the second through hole 12 and the first through hole 13, sensitive blood return indwelling needle internal gas is all discharged, avoided the problem that air in gap 31 likely cannot emptying.
During puncture, after piercing needle 9 intravasations, blood enters cavity 41 along the second through hole 12 and the first through hole 13 and makes medical worker pass through transparent conduit seat to observe blood back,
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Claims (8)
1. a sensitive blood return indwelling needle, comprise piercing needle, the puncture needle tubing being connected with described piercing needle, the needle stand being connected with described puncture needle tubing, be connected with described needle stand and the inner catheter block that is provided with cavity, be set in the outside conduit being connected with described catheter block of described puncture needle tubing; It is characterized in that,
Described catheter block and described conduit all adopt light transmissive material to make;
Described puncture needle tubing extends to described catheter block cavity inside, be inserted on described needle stand, the tube wall of described puncture needle tubing is provided with the first through hole, and described the first through hole is arranged in described catheter block cavity, for described puncture needle tubing is communicated with described catheter block cavity;
Between described conduit and described puncture needle tubing, be provided with gap, and described gap is communicated with described catheter block cavity sealing;
The tube wall of described puncture needle tubing is also provided with the second through hole, and described the second through hole is arranged in the gap between described conduit and described puncture needle tubing;
Described the second through hole is used for making described puncture needle tubing to communicate with described gap.
2. sensitive blood return indwelling needle according to claim 1, is characterized in that,
Described catheter block cavity inside, is provided with batching pig near described needle stand one side;
Described batching pig outer wall and described catheter block cavity inner wall fit tightly, and described puncture needle tubing was inserted described batching pig and is fixedly connected with described needle stand; Described batching pig is for guaranteeing the sealing of described catheter block cavity inside.
3. sensitive blood return indwelling needle according to claim 1, is characterized in that,
Described needle stand and described catheter block adopt expanded joint mode, or buckle mode connects.
4. sensitive blood return indwelling needle according to claim 1, is characterized in that,
Described catheter block is provided with the bifurcated pipe being communicated with described cavity;
Described sensitive blood return indwelling needle also comprises: for delivery of the extension tube of medicinal liquid, described extension tube is connected with described bifurcated pipe.
5. sensitive blood return indwelling needle according to claim 4, is characterized in that,
Also comprise: the threeway seat being connected with described extension tube, described threeway seat is for external medicinal liquid.
6. sensitive blood return indwelling needle according to claim 4, is characterized in that,
Described extension tube lateral wall is provided with pipe clamp;
Described pipe clamp is provided with bar hole, and the aperture, one end of described bar hole is greater than the diameter of described extension tube, and the other end aperture of described bar hole is less than the double thickness of described extension tube.
7. sensitive blood return indwelling needle according to claim 1, is characterized in that,
Described needle stand outer setting has single-blade needle handle, and the surface of described single-blade needle handle is provided with a plurality of semicircle shape projections.
8. sensitive blood return indwelling needle according to claim 2, is characterized in that,
Described batching pig adopts software silica gel material, or soft composite material making, or cotton material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490499.9A CN104189975A (en) | 2014-09-23 | 2014-09-23 | Remaining needle with quick blood returning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490499.9A CN104189975A (en) | 2014-09-23 | 2014-09-23 | Remaining needle with quick blood returning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104189975A true CN104189975A (en) | 2014-12-10 |
Family
ID=52075431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490499.9A Pending CN104189975A (en) | 2014-09-23 | 2014-09-23 | Remaining needle with quick blood returning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104189975A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105435330A (en) * | 2015-12-12 | 2016-03-30 | 上海宝舜医疗器械有限公司 | Blood return observation window of puncture set |
| CN105597189A (en) * | 2016-03-22 | 2016-05-25 | 中国人民解放军第三军医大学第二附属医院 | Detaining needle |
| CN106620940A (en) * | 2015-10-28 | 2017-05-10 | 贝克顿·迪金森公司 | Closed IV access device with paddle grip, needle hub and flash chamber |
| CN107789700A (en) * | 2016-08-31 | 2018-03-13 | 邹最 | A kind of tear-away safety-type medical trocar of pumpback part |
| CN107789701A (en) * | 2016-08-31 | 2018-03-13 | 邹最 | A kind of safety-type medical trocar with multichannel infusion channel |
| CN115068804A (en) * | 2022-01-25 | 2022-09-20 | 邢朝阳 | Bubble removal device for assisting ECMO conduit connection |
| CN115382049A (en) * | 2022-08-22 | 2022-11-25 | 中国人民解放军联勤保障部队第九八一医院 | Trocar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810780A (en) * | 1996-05-10 | 1998-09-22 | Becton Dickinson And Company | Multiple cross section needle and elastic plug assembly for a medical device |
| CN2614686Y (en) * | 2003-04-24 | 2004-05-12 | 苏州碧迪医疗器械有限公司 | Venous retention needle capable of quickly seeing returned blood |
| CN103007385A (en) * | 2013-01-05 | 2013-04-03 | 广州阳普医疗科技股份有限公司 | Secure type indwelling and shielding cap |
| WO2014110823A1 (en) * | 2013-01-21 | 2014-07-24 | 广州阳普医疗科技股份有限公司 | Safe indwelling needle |
-
2014
- 2014-09-23 CN CN201410490499.9A patent/CN104189975A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810780A (en) * | 1996-05-10 | 1998-09-22 | Becton Dickinson And Company | Multiple cross section needle and elastic plug assembly for a medical device |
| CN2614686Y (en) * | 2003-04-24 | 2004-05-12 | 苏州碧迪医疗器械有限公司 | Venous retention needle capable of quickly seeing returned blood |
| CN103007385A (en) * | 2013-01-05 | 2013-04-03 | 广州阳普医疗科技股份有限公司 | Secure type indwelling and shielding cap |
| WO2014110823A1 (en) * | 2013-01-21 | 2014-07-24 | 广州阳普医疗科技股份有限公司 | Safe indwelling needle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106620940A (en) * | 2015-10-28 | 2017-05-10 | 贝克顿·迪金森公司 | Closed IV access device with paddle grip, needle hub and flash chamber |
| CN106620940B (en) * | 2015-10-28 | 2020-12-11 | 贝克顿·迪金森公司 | Closed IV access device with paddle handle, needle hub and flashback chamber |
| CN105435330A (en) * | 2015-12-12 | 2016-03-30 | 上海宝舜医疗器械有限公司 | Blood return observation window of puncture set |
| CN105597189A (en) * | 2016-03-22 | 2016-05-25 | 中国人民解放军第三军医大学第二附属医院 | Detaining needle |
| CN107789700A (en) * | 2016-08-31 | 2018-03-13 | 邹最 | A kind of tear-away safety-type medical trocar of pumpback part |
| CN107789701A (en) * | 2016-08-31 | 2018-03-13 | 邹最 | A kind of safety-type medical trocar with multichannel infusion channel |
| CN115068804A (en) * | 2022-01-25 | 2022-09-20 | 邢朝阳 | Bubble removal device for assisting ECMO conduit connection |
| CN115382049A (en) * | 2022-08-22 | 2022-11-25 | 中国人民解放军联勤保障部队第九八一医院 | Trocar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104189975A (en) | Remaining needle with quick blood returning function | |
| US11963769B2 (en) | Blood sample optimization system and blood contaminant sequestration device and method | |
| CN204181960U (en) | A kind of remaining needle | |
| CN203525076U (en) | Countercurrent-resistant remaining needle | |
| CN204246678U (en) | Y type adapter | |
| CN203935469U (en) | Front end visible blood-flow remaining needle with threeway | |
| CN208927260U (en) | A kind of remaining needle | |
| CN104208797B (en) | A kind of conduit gatherer | |
| CN101658700B (en) | Open indwelling needle with protective sleeve | |
| CN104323784A (en) | Y-type blood-return cavity device and artery puncture needle comprising same | |
| CN203280461U (en) | Puncture needle for interventional therapy of cardiology | |
| CN210472201U (en) | Blood vessel plugging device | |
| CN103933638A (en) | Remaining needle enabling puncturing to be realized through single hand | |
| CN203263376U (en) | Safe artery remaining needle | |
| CN106821327A (en) | The soft anal fistula probe of disposable multifunction | |
| CN202122757U (en) | Novel interventional catheter | |
| CN103876752B (en) | Venous indwelling channel hemostix | |
| CN204233158U (en) | A kind of percutaneous ultrasound guides vessel catheter device | |
| CN203693707U (en) | Arterial puncture needle | |
| CN202637609U (en) | Venous indwelling needle | |
| CN209286357U (en) | Preventing thrombosis not plugging remaining needle | |
| CN206152020U (en) | Two -chamber negative pressure injection needle | |
| CN203619990U (en) | Disposable safe artery and venous indwelling needle | |
| CN203816080U (en) | Arteriovenous indwelling needle sealing plug | |
| CN204246142U (en) | A kind of Y type blood back cavity device and the arterial puncture needle containing this device |
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: 20141210 |