CN203107851U - Straight one-handed remaining needle - Google Patents
Straight one-handed remaining needle Download PDFInfo
- Publication number
- CN203107851U CN203107851U CN 201320116746 CN201320116746U CN203107851U CN 203107851 U CN203107851 U CN 203107851U CN 201320116746 CN201320116746 CN 201320116746 CN 201320116746 U CN201320116746 U CN 201320116746U CN 203107851 U CN203107851 U CN 203107851U
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- Prior art keywords
- needle
- protective sleeve
- remaining needle
- puncture
- remaining
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Abstract
The utility model discloses a straight one-handed remaining needle. The remaining needle comprises a remaining needle body, a protective sleeve connected at the rear of the remaining needle body, and a puncture needle installed in the remaining needle body and the protective sleeve. The puncture needle is L-shaped and provided with a protruded handle, and the puncture needle can be separated from the remaining needle body and be made to fall into the protective sleeve as long as the handle of the puncture needle is moved backward. The remaining needle can be operated by one hand, meanwhile achieves the purposes of safety protection and cross infection prevention, and facilitates clinical use.
Description
Technical field
This utility model belongs to medical care, relates to a kind of transfusion medical apparatus and instruments, particularly the straight formula remaining needle of a kind of safety of one-hand operation.
Background technology
Venous detaining needle can alleviate the misery that the patient causes owing to repeated localised puncture, and the protection blood vessel is conducive to clinical application and urgent the rescue, reduces nursing staff's workload.
Remaining needle on the market mainly is made of flexible pipe and puncture needle at present, when puncture need operator's left hand fixedly the site of puncture with tighten local skin, the right hand is held pin and is punctured, the operator need unclamp the fixedly left hand of site of puncture after seeing blood back, with the fixing remaining needle flexible pipe and send pipe forward of left hand, the right hand is extracted nook closing member out, finishes puncture.In whole process, must two handss cooperations of operator be operated by remaining needle, puncture is finished smoothly.But infant and the lax relatively gerontal patient of skin for easy struggle twitch again or or restless adult, unclamp the fixedly left hand of site of puncture, fixedly during the remaining needle flexible pipe, might cause the flexible pipe front end to deviate from blood vessel with left hand, make the follow-up tube failure that send.Still not having at present the remaining needle that can singlehanded finish whole piercing process occurs.
About straight formula remaining needle, the straight formula remaining needle of present clinical use often need be pressed hemostasis at remaining needle flexible pipe leading portion, connects joint or transfusion device rapidly simultaneously, and it is bigger that difficulty is finished in this operation, easily causes blood beyond flexible pipe flows out remaining needle.
In recent years, owing to the medical worker is caused the infection of acquired immune deficiency syndrome (AIDS), hepatitis virus etc. to become the problem of extensive concern by the sharp blade tip mistake thorn of the entry needle of blood contamination etc.With after flexible pipe separates, puncture tip still exposes a lot of remaining needles, very easily stabs medical personnel, medical personnel's life and health is on the hazard, and arbitrarily puts simultaneously, causes environmental pollution at used puncture needle in the market.
The utility model content
In view of this, the problem that this utility model solves is at the deficiencies in the prior art, provides a kind of simple in structure, easy to use, the singlehanded singlehanded remaining needle of the straight formula of safety that finish whole piercing process and have the needle point defencive function of energy.
The singlehanded remaining needle of a kind of straight formula; comprise remaining needle main body and puncture needle; it is characterized in that; also comprised the protective sleeve that is connected remaining needle main body rear; described puncture needle is the L type; comprise the tip portion for puncture; and perpendicular to needle point and for the puncture needle handle portion of operating; described protective sleeve is provided with a chute; described puncture needle handle portion actively is arranged in the described chute; be connected by a shrapnel device between described remaining needle main body and the protective sleeve, the slip of described shrapnel device by the puncture needle handle portion touches shrapnel device and separates.
Further, described remaining needle main body comprises infusion tube, bucket-shaped indwelling needle handle and positive pressure connector, infusion tube and indwelling needle handle connector place are provided with a check valve, and by being threaded, the end surface of described positive pressure connector offers groove between indwelling needle handle and the positive pressure connector.
Further, described remaining needle main body also is equipped with a needle point protective sleeve.
Further; described protective sleeve is the cylindrical container of tail end sealing; be connected in its terminal positive pressure connector with the remaining needle main body; described protective sleeve front end is provided with diaphragm seal; described diaphragm seal central authorities are provided with one and only hold the through hole that a root puncture pin passes through; also be provided with a groove otch in the described protective sleeve, described puncture needle surface is provided with a needle point groove, and this groove otch can engage with described needle point groove.
Further, described puncture needle surface is provided with a needle point groove, and the position of this puncture needle from needle point to groove is hollow needle tubing.
Further, the distance between described groove otch and the diaphragm seal arrives the length of needle point groove greater than the tip of described needle tip.
Further; described shrapnel device comprises perpendicular to described groove otch and extends to protective sleeve grab in addition; and it is parallel with described diaphragm seal and establish and be against rubber-like shell fragment between described grab and the described protective sleeve; described shell fragment is between diaphragm seal and groove otch; described grab is cross vertical being connected with diaphragm seal, and described protective sleeve can interlock by grab with described remaining needle main body.
Compared with prior art, the utlity model has following advantage:
(1) can realize finishing whole piercing process with one hand fully, a hands of having liberated the operator is beneficial to fixedly skin or puncture side limbs, thereby makes the puncture of remaining needle more accurate, reduces the injury to patient body, improves medical personnel's work efficiency.
(2) adopt the protective sleeve structure of puncture needle that puncture needle can be protected in time, avoided exposing of needle point, stopped the phenomenon that puncture needle is easily stabbed medical personnel or other staff, the purpose that reaches security protection and prevent cross infection.
(3) be used in combination check valve and positive pressure connector, to guarantee that this remaining needle blood can not take place takes place along the situation that infusion tube flows out remaining needle after puncture is finished, simplify the operating procedure of straight formula remaining needle, improved the reliability of clinical use.
(4) positive pressure connector with keep somewhere needle handle by being threaded, and identical with standard infusion connector model, during remaining needle is kept somewhere, can change joint as required.
Description of drawings
For the technical scheme among this utility model embodiment more clearly is described, to introduce simply the accompanying drawing of required use among the embodiment below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing in this utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the overall structure sketch map of the singlehanded remaining needle of straight formula among this utility model embodiment;
Fig. 2 is the overall structure figure of remaining needle main body among this utility model embodiment;
Fig. 3 is the STRUCTURE DECOMPOSITION figure of remaining needle main body among this utility model embodiment;
Fig. 4 is the structural representation of puncture needle among this utility model embodiment;
Fig. 5 is the structural representation of protective sleeve among this utility model embodiment;
Fig. 6 is the structural representation of shrapnel device among this utility model embodiment;
Fig. 7-1 is the use block diagram of straight formula remaining needle among this utility model embodiment to Fig. 7-3.
The specific embodiment
The utility model discloses and a kind ofly can singlehanded finish the straight formula venous detaining needle of safety that the pipe operation is sent in whole puncture, the preferred embodiment shown in reference to the accompanying drawings specifically describes this utility model below.
The singlehanded remaining needle of a kind of straight formula, overall structure comprises three major parts as shown in Figure 1: remaining needle main body 1, puncture needle 2 and protective sleeve 3.Described remaining needle main body 1 links to each other with protective sleeve 3, and described puncture needle 2 passes the centre of remaining needle main body 1 and protective sleeve 3.
As shown in Figures 2 and 3, remaining needle main body 1 comprises the infusion tube of keeping somewhere in human body 11, bucket-shaped indwelling needle handle 13, and for the positive pressure connector 14 that is connected with protective sleeve 3 or transfusion device.Described infusion tube 11 and the junction of keeping somewhere needle handle 13 are provided with a check valve 12, are connected by the screw thread (not shown) between described indwelling needle handle 13 and the positive pressure connector 14.Wherein infusion tube 11 is through puncture needle 2 guiding intravasations, and transfusion device is connected on the positive pressure connector 14, and the liquid of infusion can flow to and be retained in the endovascular infusion tube 11, thereby reach venous transfusion or medication through positive pressure connector 14, indwelling needle handle 13.Described positive pressure connector 14 can guarantee transfusion or medication end, transfusion device or syringe when separating with remaining needle main body 1 in the positive pressure connector 14 inner malleations that produce moment, make the flow direction blood vessel in the remaining needle, thus the blood vessel blockage of avoiding blood back to cause.Described check valve 12 can guarantee the flow direction of the liquid in the remaining needle, make liquid flow to infusion tube 11 from positive pressure connector 14, when remaining needle was retained in the human vas, its unidirectional control function can reduce the occurrence probability of remaining needle blood back frozen plug infusion tube 11.Described positive pressure connector 14 end surface are provided with one or a circle groove 15.Described remaining needle main body 1 also comprises a needle point protective sleeve 4, is the protection facility when remaining needle does not use as yet.
As shown in Figure 4, described puncture needle 2 is the L type, comprises needle tip 21, handle 23, and described handle 23 is the L type, with needle tip 21 be a straight line and link to each other on one side, another side extends to beyond the protective sleeve 3.Described needle tip 21 forward positions are provided with a needle point groove 22, are hollow structure from needle tip 21 to needle point groove 22, and this structure is conducive to medical personnel and observes the blood back situation in piercing process.
As shown in Figure 5, described protective sleeve 3 profiles are similar to cylindric that a tail end seals, front end is big slightly, and these protective sleeve 3 tops are provided with closure plate 32, are connected in positive pressure connector 14 ends with remaining needle main body 1.Protective sleeve 3 sides offer the duct, and this duct is the movable rail of puncture needle handle 23.The inside of protective sleeve 3 is provided with groove otch 31, and when puncture needle needle point groove 22 retreated to this position, this groove otch 31 can engage with the needle point groove 22 of puncture needle 2 front portions, starts shrapnel device 34, makes protective sleeve 3 and remaining needle main body 1 can realize separating.Protective sleeve diaphragm seal 32 central authorities offer a through hole; only pass through for a root puncture pin; further; this through hole has the shielding cover that links to each other with diaphragm seal 32; described shielding cover is owing to there is puncture needle 2 to pass and perk; after puncture needle 2 withdrawed from this through hole, shielding cover fell after rise automatically because of the elasticity of material and blocks through hole, thereby needle tip can't be exposed.
As shown in Figure 6; end near positive pressure connector in the described protective sleeve 3 also is provided with a shrapnel device 34; this device comprise one perpendicular to the groove otch, extend to the grab 35 beyond the protective sleeve; and one be located at described fixed leg 36 rears, laterally be against shell fragment 37 between protective sleeve 3 inwalls and the grab 35; described grab 35 is cross with diaphragm seal 32 and is connected, and the part between grab 35 and the diaphragm seal 32 is used as fixed leg 36.The operation principle of this shrapnel device is: when puncture needle 2 passes through groove otch 31, groove otch 31 is forced to strut, shell fragment 37 is compressed, the groove 15 that causes grab 35 leading portions to block described positive pressure connector 14 ends is downwards drawn close to protective sleeve 3 inwalls in grab 35 rear ends that with fixed leg 36 are fulcrum, makes between protective sleeve 3 and the remaining needle main body 1 to keep relative fixed; When puncture needle 2 retreats; when needle point groove 22 engages fully with groove otch 31; because needle point groove 22 place's diameters are less; shell fragment 37 is stretched descends groove otch 31; this moment is by fixed leg 36 these fulcrums; grab 35 leading portions are risen, thereby grab 35 and the groove 15 of positive pressure connector 14 are unclamped, and protective sleeve 3 just can be realized separating with remaining needle main body 1.
As Fig. 7-1 to shown in Fig. 7-3, the using method of the disclosed embodiment of this utility model: the conventional bundle gone up tourniquet, sterilization skin, connects transfusion device and aerofluxus, is ready to remaining needle pad pasting etc. with behind the thing, but left hand taught skin or assistance immobilized patients limbs are used right hand complete operation fully.Hand thumb and middle finger are clutched protective sleeve 3 both sides, and forefinger places puncture needle handle 23 places, and it is stable to hold pin, pulls out and protects pin medicated cap 4.Directly over target blood with the proper angle inserting needle; put remaining needle after seeing blood back; forefinger is exerted oneself backward; make needle tip 21 slowly partly withdraw from infusion tube 11; clutch protective sleeve 3 with hand thumb and middle finger and promote whole remaining needle intravasation; forefinger joystick 23 motions simultaneously; make its infusion tube 11 intravasations and puncture needle 2 retreats in infusion tube 11; until infusion tube 11 complete intravasations; after needle tip 21 is deviate from positive pressure connector 14 fully; the interior groove otch 31 of needle point groove 22 arrival protective sleeves this moment, shrapnel device 34 starts, and positive pressure connector 14 is separated with protective sleeve 3.Shielding cover in the middle of the diaphragm seal 32 falls after rise simultaneously, and the through hole sealing prevents that needle point from exposing, and piercing process is finished, and unclamps tourniquet, sticks the remaining needle pad pasting.Subsequently transfusion device is connected in the positive pressure connector 14 and gets final product.Owing to be used in combination check valve 12 and positive pressure connector 14, can have guaranteed that just blood can not flow out beyond the remaining needle.Protective sleeve 3 and the puncture needles 2 that entered in the protective sleeve 3 are put into the retracting device of appointment.
Compared with prior art, the utlity model has following advantage:
(1) can realize finishing whole piercing process with one hand fully, a hands of having liberated the operator is beneficial to fixedly skin or puncture side limbs, thereby makes the puncture of remaining needle more accurate, reduces the injury to patient body, improves medical personnel's work efficiency.
(2) adopt the protective sleeve structure of puncture needle that puncture needle can be protected in time, avoided exposing of needle point, stopped the phenomenon that puncture needle is easily stabbed medical personnel or other staff, the purpose that reaches security protection and prevent cross infection.
(3) be used in combination check valve and positive pressure connector, to guarantee that this remaining needle blood can not take place takes place along the situation that infusion tube flows out remaining needle after puncture is finished, simplify the operating procedure of straight formula remaining needle, improved the reliability of clinical use.
(4) positive pressure connector with keep somewhere needle handle by being threaded, and identical with standard infusion connector model, during remaining needle is kept somewhere, can change joint as required.
To those skilled in the art, obviously this utility model is not limited to the details of above-mentioned one exemplary embodiment, and under the situation that does not deviate from spirit of the present utility model or basic feature, can realize this utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, therefore is intended to include in this utility model dropping on the implication that is equal to important document of claim and all changes in the scope.Any Reference numeral in the claim should be considered as limit related claim.
In addition, be to be understood that, though this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description only is for clarity sake, those skilled in the art should make description as a whole, and the technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
Claims (7)
1. singlehanded remaining needle of straight formula; comprise remaining needle main body and puncture needle; it is characterized in that; also comprised the protective sleeve that is connected remaining needle main body rear; described puncture needle is the L type; comprise the tip portion for puncture; and perpendicular to needle point and for the puncture needle handle portion of operating; described protective sleeve is provided with a chute; described puncture needle handle portion actively is arranged in the described chute; be connected by a shrapnel device between described remaining needle main body and the protective sleeve, the slip of described shrapnel device by the puncture needle handle portion touches shrapnel device and separates.
2. the singlehanded remaining needle of straight formula according to claim 1, it is characterized in that, described remaining needle main body comprises infusion tube, bucket-shaped indwelling needle handle and positive pressure connector, infusion tube and indwelling needle handle connector place are provided with a check valve, by being threaded, the end surface of described positive pressure connector offers groove between indwelling needle handle and the positive pressure connector.
3. the singlehanded remaining needle of straight formula according to claim 2 is characterized in that described remaining needle main body also is equipped with a needle point protective sleeve.
4. the singlehanded remaining needle of straight formula according to claim 2; it is characterized in that; described protective sleeve is the cylindrical container of tail end sealing; be connected in its terminal positive pressure connector with the remaining needle main body; described protective sleeve front end is provided with diaphragm seal, and described diaphragm seal central authorities are provided with one and only hold the through hole that a root puncture pin passes through, and also are provided with a groove otch in the described protective sleeve; described puncture needle surface is provided with a needle point groove, and this groove otch can engage with described needle point groove.
5. the singlehanded remaining needle of straight formula according to claim 1 is characterized in that described puncture needle surface is provided with a needle point groove, and the position of this puncture needle from needle point to groove is hollow needle tubing.
6. the singlehanded remaining needle of straight formula according to claim 4 is characterized in that, the distance between described groove otch and the diaphragm seal arrives the length of needle point groove greater than the tip of described needle tip.
7. the singlehanded remaining needle of straight formula according to claim 4; it is characterized in that; described shrapnel device comprises perpendicular to described groove otch and extends to protective sleeve grab in addition; and it is parallel with described diaphragm seal and establish and be against rubber-like shell fragment between described grab and the described protective sleeve; described shell fragment is between diaphragm seal and groove otch; described grab is cross vertical being connected with diaphragm seal, and described protective sleeve can interlock by grab with described remaining needle main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116746 CN203107851U (en) | 2013-03-14 | 2013-03-14 | Straight one-handed remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116746 CN203107851U (en) | 2013-03-14 | 2013-03-14 | Straight one-handed remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203107851U true CN203107851U (en) | 2013-08-07 |
Family
ID=48888234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320116746 Withdrawn - After Issue CN203107851U (en) | 2013-03-14 | 2013-03-14 | Straight one-handed remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203107851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110997A (en) * | 2013-03-14 | 2013-05-22 | 苏州大学 | Straight type single-hand remaining needle |
-
2013
- 2013-03-14 CN CN 201320116746 patent/CN203107851U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110997A (en) * | 2013-03-14 | 2013-05-22 | 苏州大学 | Straight type single-hand remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20150617 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |