CN201091737Y - Intravenous infusion pumping needle and vein transfusion device - Google Patents
Intravenous infusion pumping needle and vein transfusion device Download PDFInfo
- Publication number
- CN201091737Y CN201091737Y CNU2007201723319U CN200720172331U CN201091737Y CN 201091737 Y CN201091737 Y CN 201091737Y CN U2007201723319 U CNU2007201723319 U CN U2007201723319U CN 200720172331 U CN200720172331 U CN 200720172331U CN 201091737 Y CN201091737 Y CN 201091737Y
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- Prior art keywords
- needle
- transfusion
- trocar
- self
- drop kettle
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Abstract
The utility model discloses an intravenous transfusion injection needle and an intravenous transfusion apparatus. The intravenous transfusion injection needle comprises a guide needle and a trocar, wherein the guide needle is glidingly matched with the trocar; the guide needle is provided with a blood-return observation hole. The intravenous transfusion apparatus comprises a drip cup, a transfusion guide pipe and an injection needle, wherein the drip cup comprises a solution inlet and a solution outlet; the injection needle comprises a guide needle and a trocar; the solution outlet hole of the drip cup is connected with the trocar of the injection needle via the transfusion guide pipe; the guide needle is glidingly matched with the trocar; the guide needle is provided with the blood-return observation hole. By adopting the intravenous transfusion injection needle and the intravenous transfusion apparatus, users can observe blood return of the punctured vein to determine whether the vein is successfully punctured.
Description
Technical field
This utility model relates to a kind of medical device, the intravenous injector that particularly relates to a kind of venous transfusion entry needle and contain this entry needle.
Background technology
Venous transfusion be hospital clinical most important also be one of important measures of the most frequently used rescue and treatment patient, disposable venous infusion needle is the most frequently used a kind of consumable supplies of venous transfusion, has brought into play great effect aspect clinical disease treatment.Along with the develop rapidly of science and technology, it is more and more thinner that the model of venoclysis needle is divided.The most frequently used disposable infusion entry needle is to adopt tube for transfusion is socketed on the tubular needle at present, and adopts adhesives that both are closely bonded.During use syringe needle is pricked into patient's blood vessel, medicine is by the tubular intracavity intravasation of tube for transfusion and entry needle.But this disposable infusion entry needle exists following deficiency: 1, patient infusion acupuncture treatment position can not voluntary activity, otherwise the easy piercing blood vessel of injection needle, cause needle roller, need the nurse to have an acupuncture treatment again, the misery that this had not only increased nurse's the amount of labour but also increased the patient, and acupuncture treatment has increased the infected probability of patient repeatedly; 2, the patient is because the acupuncture treatment limbs can not voluntary activity, and the patient of long-time transfusion is bloated because of the numb limbs and tense tendons acid of can't activity often feeling to infuse, and patient's diet, defecation all are very restricted; 3, there is the danger that human body is caused potential hazard in the adhesives that uses of the bonding position of transfusion injection needle in the past and tube for transfusion, has drawn attention both at home and abroad and has carried out the improvement of adhesives, but still can't overcome fully.
Intravenous transfusion device also comprises drop kettle (black Fei Shi pipe) except entry needle, drop kettle and entry needle interconnect by transfusion catheter.Along with the develop rapidly of science and technology, intravenous transfusion device also by the first generation through the repeatedly used sebific duct transfusion device of sterilizing to the simple disposable intravenous infusion set of second filial generation function, develop into the disposable intravenous infusion set of present third generation band filter again.But present disposable transfusion device equally still exists many shortcomings: when infusion process finishes, because nurse job is busy, early notifies the nurse early to pull out pin and then waste medicinal liquid, be unfavorable for treatment, pulled out pin evening easy blood back or gas and entered in patient's body and cause danger.
More than these deficiencies up to the present never obtain paying attention to and solve.
Summary of the invention
This utility model is exactly in order to overcome above deficiency, has proposed safety and comfort, can not cause the venous transfusion entry needle and the intravenous transfusion device of needle roller.
For achieving the above object, venous transfusion entry needle of the present utility model has adopted following technical scheme: a kind of venous transfusion entry needle, comprise the guid needle and the trocar, and the described guid needle and the trocar are and are slidingly matched, and described guid needle is provided with the blood back observation port.
Preferably, described blood back observation port is positioned at least one place of guid needle front end, rear end.
For achieving the above object, intravenous transfusion device of the present utility model has adopted following technical scheme: a kind of intravenous transfusion device, comprise drop kettle, transfusion catheter and entry needle, described drop kettle comprises inlet opening and liquid outlet, described entry needle comprises the guid needle and the trocar, the liquid outlet of drop kettle links to each other with the trocar of entry needle by transfusion catheter, and the described guid needle and the trocar are and are slidingly matched, and described guid needle is provided with the blood back observation port.
Preferably, described blood back observation port is positioned at least one place of guid needle front end, rear end.
Be provided with self-closing valve in the described drop kettle, described self-closing valve is sphere or water droplet shape or taper or goalpost shape or thin film shape or cup shape, and the shape of the liquid outlet of described drop kettle matches with the shape of self-closing valve.
Be provided with the alarm that sends alarm signal after liquid drips off in the drop kettle in the described self-closing valve.
Described alarm signal is at least a in acoustical signal or the optical signal.
Described drop kettle is provided with containing mark.
The beneficial effect that this utility model is compared with the prior art is: the venous transfusion entry needle of this utility model ad hoc structure, can be when the transfusion acupuncture treatment, at first utilize the metal guide pin successfully to wear out blood vessel, and be with trocar intravasation together, after guaranteeing trocar intravasation, by the guid needle tail end that is retained in the tube for transfusion outside guid needle is extracted out from the trocar, only stay the soft trocar in the blood vessel, like this in infusion process, owing to no longer include inflexible metal guide pin in the blood vessel, thereby avoid taking place needle roller, the patient can carry out basic free activity, increased the safety of venous transfusion and patient's comfortableness, and nurse's workload can not increase; Owing to do not need entry needle and tube for transfusion directly bonding, overcome the pollution problem that the past bonding agent causes fully yet.And the blood back observation port on the venous transfusion entry needle of this utility model ad hoc structure can be observed blood back situation when puncture vessel easily for the user, so that determine whether success of puncture vessel.
Intravenous transfusion device of the present utility model, by in the drop kettle, self-closing valve being set, and the shape of self-closing valve matches with the liquid outlet shape of drop kettle, on the one hand can be when transfusion end medicine drips off, self-closing valve is blocked the liquid outlet of drop kettle below along with liquid in the drop kettle descends, automatically close transfusion, avoid the danger of air admission human body and blood back.
The shape of the self-closing valve of intravenous transfusion device of the present utility model can be for sphere or water droplet shape or taper or goalpost shape or thin film shape or cup shape, for the user provides a lot of selections.
Also be provided with alarm in the self-closing valve of intravenous transfusion device of the present utility model, described alarm glistens automatically after liquid drips off in the drop kettle or sends whistling warning reminding user, prevents to produce the danger of blood back.
Description of drawings
Fig. 1 is the structural representation of first kind of venous transfusion entry needle of the present utility model;
Fig. 2 is the structural representation of second kind of venous transfusion entry needle of the present utility model;
Fig. 3 is the structural representation of the third venous transfusion entry needle of the present utility model;
Fig. 4 is the structural representation of the 4th kind of venous transfusion entry needle of the present utility model;
Fig. 5 is the sketch map of first kind of intravenous transfusion device of the present utility model when infusing;
Fig. 6 is the sketch map of first kind of intravenous transfusion device of the present utility model when transfusion finishes;
Fig. 7 is the sketch map of second kind of intravenous transfusion device of the present utility model when infusing;
Fig. 8 is the sketch map of second kind of intravenous transfusion device of the present utility model when transfusion finishes;
Fig. 9 is the sketch map of the third intravenous transfusion device of the present utility model when infusing;
Figure 10 is the sketch map of the third intravenous transfusion device of the present utility model when transfusion finishes;
Figure 11 is the sketch map of the 4th kind of intravenous transfusion device of the present utility model when infusing;
Figure 12 is the sketch map of the 4th kind of intravenous transfusion device of the present utility model when transfusion finishes;
Figure 13 is the sketch map of the 5th kind of intravenous transfusion device of the present utility model when infusing;
Figure 14 is the sketch map of the 5th kind of intravenous transfusion device of the present utility model when transfusion finishes;
Figure 15 is the sketch map of the 6th kind of intravenous transfusion device of the present utility model when infusing;
Figure 16 is the sketch map of the 6th kind of intravenous transfusion device of the present utility model when transfusion finishes;
Figure 17 is the structural representation of the 7th kind of intravenous transfusion device of the present utility model.
The specific embodiment
Also in conjunction with the accompanying drawings this utility model is described in further details below by concrete embodiment.By convention, so-called " preceding " and " back " are respectively that finger element or orientation are in the drawings towards the left side with towards the right side.
This utility model be the name of before the applicant, applying for to be called " venous transfusion entry needle and intravenous transfusion device ", application number be 200620014762.8 improvement, this specific embodiment is only to doing detailed description with the difference of this utility model patent.
As shown in Figure 1, a kind of venous transfusion entry needle comprises the guid needle 1 and the trocar 2, and the described guid needle and the trocar are closely and are slidingly matched, and front end on the described guid needle (first three of draw point/position all can) is provided with blood back observation port 5.Venous transfusion entry needle as shown in Figure 2, the blood back observation port 5 on it are positioned at described guid needle rear end (back 1/3rd positions of draw point all can), promptly apart from guid needle 1 most advanced and sophisticated about 1 centimeters.Venous transfusion entry needle as shown in Figure 3, the blood back observation port 5 on it has two front-end and back-end that lay respectively at described guid needle.The user is using this venous transfusion entry needle, just can observe the blood back situation easily when puncture vessel, so that determine whether puncture vessel is successful.Venous transfusion entry needle as shown in Figure 4, tube for transfusion 2 is positioned at the inside of guid needle 1.
Shown in Fig. 5-15, a kind of intravenous transfusion device, comprise drop kettle 3, transfusion catheter and entry needle, described drop kettle comprises inlet opening 31 and liquid outlet 32, described entry needle comprises the guid needle and the trocar, the liquid outlet of drop kettle links to each other with the trocar of entry needle by transfusion catheter, and the described guid needle and the trocar are and are slidingly matched, and described guid needle is provided with the blood back observation port.Described blood back observation port is positioned at least one place of guid needle front end, rear end.
Shown in Fig. 5-17, be provided with self-closing valve 4 in the described drop kettle.When transfusion finished, self-closing valve 4 cut out transfusion automatically, and when avoiding transfusion to finish fully, due to illness the people does not note or the nurse is untimely pulls out blood back or the air admission blood vessel that pin may occur and cause danger.Described drop kettle is provided with containing mark, understands amount of infusion in real time for the user.
Shown in Fig. 5,6, described self-closing valve 4 is spherical, and the shape of the liquid outlet 32 of described drop kettle matches with the shape of self-closing valve 4, also is spherical.As shown in Figure 5, self-closing valve 4 in infusion process with floating, the normal fluid of drop kettle; As shown in Figure 6, when transfusion finished, self-closing valve 4 fell the liquid outlet 32 of blocking the drop kettle.
Shown in Fig. 7,8, described self-closing valve 4 is a water droplet shape, and the shape of the liquid outlet 32 of described drop kettle matches with the shape of self-closing valve 4, also is water droplet shape.As shown in Figure 7, self-closing valve 4 in infusion process with floating, the normal fluid of drop kettle; As shown in Figure 8, when transfusion finished, self-closing valve 4 fell the liquid outlet 32 of blocking the drop kettle.
Shown in Fig. 9,10, described self-closing valve 4 is taper, and the shape of the liquid outlet 32 of described drop kettle matches with the shape of self-closing valve 4, also is taper.As shown in Figure 9, self-closing valve 4 in infusion process with floating, the normal fluid of drop kettle; As shown in figure 10, when transfusion finished, self-closing valve 4 fell the liquid outlet 32 of blocking the drop kettle.
Shown in Figure 11,12, described self-closing valve 4 is a goalpost shape, and the shape of the liquid outlet 32 of described drop kettle matches with the shape of self-closing valve 4, also is goalpost shape.As shown in figure 11, self-closing valve 4 in infusion process with floating, the normal fluid of drop kettle; As shown in figure 12, when transfusion finished, self-closing valve 4 fell the liquid outlet 32 of blocking the drop kettle.
Shown in Figure 13,14, described self-closing valve 4 is a thin film shape, and the shape of the liquid outlet 32 of described drop kettle matches with the shape of self-closing valve 4, also is thin film shape.As shown in figure 13, self-closing valve 4 in infusion process with floating, the normal fluid of drop kettle; As shown in figure 14, when transfusion finished, self-closing valve 4 fell the liquid outlet 32 of blocking the drop kettle.
Shown in Figure 15,16, described self-closing valve 4 is a cup shape, and the shape of the liquid outlet 32 of described drop kettle matches with the shape of self-closing valve 4, also is cup shape.As shown in figure 13, self-closing valve 4 in infusion process with floating, the normal fluid of drop kettle; As shown in figure 14, when transfusion finished, self-closing valve 4 fell the liquid outlet 32 of blocking the drop kettle.
As shown in figure 17, be provided with the alarm 5 that sends alarm signal after liquid drips off in the drop kettle in the described self-closing valve.Described alarm 5 glistens automatically after liquid drips off in the drop kettle or sends the whistling warning reminding.Like this, the user just can in time stop transfusion, the danger that prevents to produce blood back.
The user is disposable can to puncture the self-closing valve self-destruction after using intravenous transfusion device of the present utility model, can not reclaim, prevent the drawback used repeatedly.
Above content be in conjunction with concrete preferred implementation to further describing that this utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from this utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. a venous transfusion entry needle comprises the guid needle and the trocar, it is characterized in that: the described guid needle and the trocar are and are slidingly matched, and described guid needle is provided with the blood back observation port.
2. venous transfusion entry needle according to claim 1 is characterized in that: described blood back observation port is positioned at least one place of guid needle front end, rear end.
3. intravenous transfusion device, comprise drop kettle, transfusion catheter and entry needle, described drop kettle comprises inlet opening and liquid outlet, described entry needle comprises the guid needle and the trocar, the liquid outlet of drop kettle links to each other with the trocar of entry needle by transfusion catheter, it is characterized in that: the described guid needle and the trocar are and are slidingly matched, and described guid needle is provided with the blood back observation port.
4. intravenous transfusion device according to claim 3 is characterized in that: described blood back observation port is positioned at least one place of guid needle front end, rear end.
5. according to claim 3 or 4 described intravenous transfusion devices, it is characterized in that: be provided with self-closing valve in the described drop kettle, described self-closing valve is sphere or water droplet shape or taper or goalpost shape or thin film shape or cup shape, and the shape of the liquid outlet of described drop kettle matches with the shape of self-closing valve.
6. intravenous transfusion device according to claim 5 is characterized in that: be provided with the alarm that sends alarm signal after liquid drips off in the drop kettle in the described self-closing valve.
7. intravenous transfusion device according to claim 6 is characterized in that: described alarm signal is at least a in acoustical signal or the optical signal.
8. according to claim 3 or 4 described intravenous transfusion devices, it is characterized in that: described drop kettle is provided with containing mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201723319U CN201091737Y (en) | 2007-09-27 | 2007-09-27 | Intravenous infusion pumping needle and vein transfusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201723319U CN201091737Y (en) | 2007-09-27 | 2007-09-27 | Intravenous infusion pumping needle and vein transfusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201091737Y true CN201091737Y (en) | 2008-07-30 |
Family
ID=39899697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201723319U Expired - Lifetime CN201091737Y (en) | 2007-09-27 | 2007-09-27 | Intravenous infusion pumping needle and vein transfusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201091737Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117534A1 (en) * | 2014-02-06 | 2015-08-13 | 闫雪松 | Intravenous infusion injection needle |
-
2007
- 2007-09-27 CN CNU2007201723319U patent/CN201091737Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117534A1 (en) * | 2014-02-06 | 2015-08-13 | 闫雪松 | Intravenous infusion injection needle |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |
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| CX01 | Expiry of patent term |