CN203370150U - Single-hand-operated safe detaining needle - Google Patents
Single-hand-operated safe detaining needle Download PDFInfo
- Publication number
- CN203370150U CN203370150U CN201320115519.5U CN201320115519U CN203370150U CN 203370150 U CN203370150 U CN 203370150U CN 201320115519 U CN201320115519 U CN 201320115519U CN 203370150 U CN203370150 U CN 203370150U
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- Prior art keywords
- needle
- protective sleeve
- puncture
- remaining needle
- main body
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Abstract
The utility model discloses a single-hand-operated safe detaining needle, comprising a detaining needle body, a protective sleeve disposed behind the detaining needle body, and a puncture needle disposed in the detaining needle body and the protective sleeve. The puncture needle is U-shaped and is provided with a protruding handle. The protective sleeve is also provided with a protruding handle. The two protruding handles are pressed towards opposite directions, thus separating the puncture needle from the detaining needle body, and enabling the puncture needle to fall into the protective sleeve. The single-hand-operated safe detaining needle is advantageous in that the detaining needle can be operated by a single hand; the aim of safety protection and cross infection prevention can be achieved; clinic use can be facilitated.
Description
Technical field
This utility model belongs to medical care, relates to a kind of transfusion medical apparatus and instruments, particularly a kind of single-hand safety remaining needle of one-hand operation.
Background technology
Venous detaining needle can alleviate the misery that the patient causes due to repeated localised puncture, and the protection blood vessel is conducive to clinical application and urgent the rescue, reduces nursing staff's workload.
Current remaining needle on the market mainly consists of flexible pipe and puncture needle, when puncture need operator's left hand fixedly site of puncture with tighten local skin, the right hand is held pin and is punctured, after seeing blood back, the operator need unclamp the fixedly left hand of site of puncture, with the fixing retaining needle flexible tube send forward pipe of left hand, the right hand is extracted nook closing member out, completes puncture.Must remaining needle be operated two handss cooperations of operator in whole process, just can make puncture complete smoothly.But infant and the relatively lax gerontal patient of skin for easy struggle twitch again or or restless adult, unclamp the fixedly left hand of site of puncture, with left hand, fixedly during retaining needle flexible tube, likely cause the flexible pipe front end to deviate from blood vessel, make the follow-up tube failure that send.There is no at present the remaining needle that can singlehanded complete whole piercing process occurs.
In recent years, because 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.A lot of remaining needles still adopt the puncture needle after use to separate the structure that rear puncture tip exposes with flexible pipe in the market, very easily stab medical personnel, medical personnel's healthy life is on the hazard, and arbitrarily put, and cause environmental pollution simultaneously.
The utility model content
In view of this, the problem that this utility model solves is for the deficiencies in the prior art, provides a kind of simple in structure, easy to use, can singlehanded complete whole piercing process and with the safe type venous retaining needle of needle point defencive function.
A kind of single-hand safety remaining needle; comprise remaining needle main body and puncture needle; it is characterized in that; also comprise the protective sleeve that is connected to described remaining needle main body rear; described puncture needle is U-shaped; the one end is the tip portion for puncture; the other end is the puncture needle handle part for operation; described protective sleeve is provided with a chute; described puncture needle handle part actively is arranged in described chute; between described remaining needle main body and protective sleeve, by a shrapnel device, be connected, the slip of described shrapnel device by the puncture needle handle part touches shrapnel device and separated.
Further, described remaining needle main body comprises: for being retained in flexible pipe in human body, for the connection tube that connects transfusion device and for connecting the Y-type three way type of described flexible pipe and connection tube.
Further; three interfaces of described threeway; first interface is connected with described flexible pipe; the second interface is connected with described connection tube; the 3rd interface is connected with protective sleeve; described the 3rd interface end is provided with a sealing-plug, and sealing plug central authorities are provided with one and only hold the first through hole that a root puncture pin passes through, and described the 3rd interface end surface is provided with groove.
Further, stage casing and the end at described connection tube is respectively equipped with one-hand clip and joint.
Further, also dispose the needle point protective sleeve outside described flexible pipe.
Further, described puncture needle surface is provided with a needle point groove, and described puncture needle is hollow needle tubing from needle point to groove position.
Further; described protective sleeve tail end sealing; comprise: protective sleeve main body and the closure plate that is positioned at the protective sleeve top; described closure plate central authorities are provided with one and only hold the second through hole that a root puncture pin passes through; described protective sleeve body interior also is provided with a groove otch; described puncture needle surface is provided with a needle point groove, and described groove otch can engage with this needle point groove.
Further, the distance between described groove otch and closure plate is greater than the most advanced and sophisticated length to the needle point groove of described needle point, and described shrapnel device is positioned at protective sleeve front end inside, interlocks with the remaining needle main body.
Further, described protective sleeve side is provided with a protective sleeve handle.
Further; described shrapnel device comprise perpendicular to described groove otch and extend to grab beyond protective sleeve, perpendicular to described grab and for the fixed leg of fixation spring tab device and parallel with described fixed leg and establish and be against the elastic shell fragment that has between grab and described protective sleeve main body; described shell fragment is arranged at the rear of described fixed leg, and described protective sleeve and remaining needle main body interlock by described grab.
Compared with prior art, the utlity model has following advantage:
(1) can realize completing 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.
The accompanying drawing explanation
For the technical scheme in this utility model embodiment more clearly is described, below will introduce simply the accompanying drawing of required use in embodiment, apparently, the accompanying drawing the following describes is only 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 according to these accompanying drawings other accompanying drawing.
The overall structure schematic diagram that Fig. 1 is single-hand safety remaining needle in this utility model embodiment;
The remaining needle agent structure schematic diagram that Fig. 2 is single-hand safety remaining needle in this utility model embodiment;
The structural representation that Fig. 3 is the puncture needle of single-hand safety remaining needle in this utility model embodiment;
The structural representation that Fig. 4 is the protective sleeve of single-hand safety remaining needle in this utility model embodiment;
The shrapnel device that Fig. 5 is protective sleeve inside in this utility model embodiment;
The use block diagram that Fig. 6-1 and Fig. 6-2 are single-hand safety remaining needle in this utility model embodiment.
The specific embodiment
The utility model discloses and a kind ofly can singlehanded complete the safe type venous retaining needle that the pipe operation is sent in whole puncture, below the preferred embodiment shown in reference to the accompanying drawings, be specifically described this utility model.
A kind of single-hand safety remaining needle, overall structure as shown in Figure 1, comprises three major parts: remaining needle main body 1, puncture needle 2 and protective sleeve 3.Described remaining needle main body 1 is connected with protective sleeve 3, and described puncture needle 2 is through the centre of remaining needle main body 1 and protective sleeve 3.
As shown in Figure 2, remaining needle main body 1 comprises the flexible pipe 11 of keeping somewhere in human body, connection tube 12, and the threeway 14 that connects above-mentioned flexible pipe 11 and connection tube 12.The integral body that above-mentioned flexible pipe 11, connection tube 12 and threeway 14 are formed in one.The other end of described connection tube is provided with joint 13, and this connection tube stage casing is equipped with an one-hand clip 16.Described remaining needle main body 1 also comprises needle point protective sleeve 15.Three interfaces of described threeway 14: first interface leads to flexible pipe 11, the second interfaces and leads to connection tube 12, the three interfaces for being connected with described protective sleeve 3.Described the 3rd interface end surface offers one or a circle groove 17, and this groove 17 is for engaging with described protective sleeve 3.Described the 3rd interface end also is provided with a sealing-plug 18, sealing plug 18 central authorities offer and only hold a root puncture pin by the first through hole, further, this through hole is with the shielding cover be connected with sealing-plug 18, described shielding cover due to have puncture needle 2 through and perk, after puncture needle 2 exits through hole, shielding cover is because of the elasticity automatic fall-back of material and block through hole, now the 3rd interface seals fully, can avoid the liquid leakage in remaining needle.In above-mentioned threeway 14, described flexible pipe 11 is through puncture needle guiding intravasation, and transfusion device is connected on joint 13, and the liquid of infusion can flow to and be retained in endovascular flexible pipe 11 through joint 13, connection tube 12, thereby reaches venous transfusion or medication.One-hand clip 16 can be used intermittently to play to press from both sides at remaining needle and close connection tube 12, and then prevents the purpose of blood backflow to remaining needle 1.Needle point protective sleeve 15 is facilities of protection remaining needle when pin is not used.
As shown in Figure 3, described puncture needle 2 comprise needle tip 23, puncture needle handle 21 and with the guide rod 22 of connecting puncture needle point 23 and puncture needle handle 21, described guide rod 22 shapes are similar to U-shaped, one section of needle tip 23 and U-shaped guide rod 22 is straight line, and puncture needle handle 21 is vertical with the other end of U-shaped guide rod 22.Described needle tip 23 forward positions are provided with a needle point groove 24, and from needle tip 23 to the needle point groove, 24 ones is hollow structure, and this structure is conducive to medical personnel and observes the blood back situation in piercing process.
As shown in Figure 4, described protective sleeve 3 profiles are similar to the cylindric of tail end sealing, and its structure comprises: protective sleeve main body 35, be vertical at protective sleeve main body 35 sides protective sleeve handle 31, be positioned at the closure plate 32 on protective sleeve 3 tops.Protective sleeve 3 main body tail end sealings, top is connected with the 3rd interface of threeway 14 in remaining needle main body 1 by protective sleeve closure plate 32.Protective sleeve main body 35 has been offered duct in protective sleeve handle 31 one sides, is also the duct that puncture needle guide rod 22 passes through.Be provided with a perforate at protective sleeve handle 31 middle parts, this perforate is that puncture needle handle 31 is through space.The inside of protective sleeve main body 35 is provided with groove otch 33; when this groove otch 33 retreats to this position for puncture needle groove 24; this groove otch 33 can engage with the needle point groove 24 of needle tip 23 front portions, starts shrapnel device 34, makes protective sleeve 3 and remaining needle main body 1 can realize separating.Protective sleeve closure plate 32 central parts offer the second through hole, only for a root puncture pin, pass through, and the second through hole is equally with shielding cover, and this shielding cover structure is with the shielding cover structure identical with above-mentioned the first through hole.When puncture needle 2 retreats until needle point 23 enters protective sleeve 3 when interior, protective sleeve 3 closure plate perforates sealings, thus needle tip 23 can not be exposed.
As shown in Figures 4 and 5; the interior end near threeway 14 of described protective sleeve 3 also is provided with a shrapnel device 34; this device 34 comprise one perpendicular to groove otch 33, extend to the grab 341 beyond protective sleeve; one perpendicular to described grab 341 fixed leg 342 for fixing this shrapnel device, and one be located at described fixed leg 342 rears, laterally be against the shell fragment 343 between protective sleeve 3 inwalls and grab 341.The operation principle of this shrapnel device 34 is: when puncture needle 2 passes through groove otch 33, groove otch 33 is forced to strut, shell fragment 343 compressions, the groove 17 that causes grab 341 leading portions to block described threeway 14 the 3rd interface end is downwards drawn close in grab 341 rear ends that the fixed leg 342 of take is fulcrum to protective sleeve 3 inwalls, make to keep between protective sleeve 3 and threeway 14 relatively fixing; When puncture needle 2 retreats; until the needle point groove 24 of needle tip 23 is while engaging fully with groove otch 33; because needle point groove 24 place's diameters are less; shell fragment 343 is stretched descends groove otch 33; now by fixed leg 342 these fulcrums; grab 341 leading portions are risen, thereby the groove 17 of grab 341 and the 3rd interface is unclamped, and protective sleeve 3 just can be realized separating with remaining needle main body 1.
The using method of the disclosed embodiment of this utility model: conventional upper tourniquet, the sterilization skin pricked, connect transfusion device and remaining needle joint 13, aerofluxus, be ready to remaining needle pad pasting etc. with after thing, but left hand taught skin or assistance immobilized patients limbs, use right hand complete operation fully.Hand thumb and forefinger are against respectively protective sleeve handle 31 and puncture needle handle 21 places, now can not be to exerting oneself mutually, and only need to stablize and hold pin and get final product.Pull up needle point protective sleeve 15, out of shape according to blood vessel, directly over blood vessel with the proper angle inserting needle, set level remaining needle after seeing blood back, right hand forefinger and thumb are exerted oneself in opposite directions, make puncture needle handle 21 and protective sleeve handle 31 move toward one another, now puncture needle 2 outwards moves back flexible pipe 11 is interior, control the direction of the right hand and the strength of hand thumb and forefinger, make to wear and hold pin flexible pipe is sent in blood vessel with respect to skin penetrating point is motionless, after flexible pipe has 1/2nd to 2/3rds intravasations, coordinate to control the motion of the right hand and hand thumb forefinger, needle tip 23 is moved backward and flexible pipe 11 continues forward, enter fully in protective sleeve 3 to puncture needle 2, simultaneously in the complete intravasation of flexible pipe 11, now on puncture needle 2,24 ones of needle point grooves reach the groove otch 33 in protective sleeve 3, shrapnel device 34 starts, protective sleeve 3 separates with remaining needle main body 1, aperture sealing in the middle of protective sleeve closure plate 32 simultaneously, avoid needle point to expose, puncture needle handle 21 meets with protective sleeve handle 31 simultaneously.Piercing process completes, and unclamps tourniquet, regulates liquid droping speed, sticks the remaining needle pad pasting.Protective sleeve 3 and the puncture needles 2 that entered in protective sleeve 3 are put into to the retracting device of appointment.
Compared with prior art, the utlity model has following advantage:
(1) 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.
(2) can realize completing 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.
To those skilled in the art, obviously this utility model is not limited to the details of above-mentioned example embodiment, and in the situation that do 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 scope.Any Reference numeral in claim should be considered as limit related claim.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (10)
1. a single-hand safety remaining needle; comprise remaining needle main body and puncture needle; it is characterized in that; also comprise the protective sleeve that is connected to described remaining needle main body rear; described puncture needle is U-shaped; the one end is the tip portion for puncture; the other end is the puncture needle handle part for operation; described protective sleeve is provided with a chute; described puncture needle handle part actively is arranged in described chute; between described remaining needle main body and protective sleeve, by a shrapnel device, be connected, the slip of described shrapnel device by the puncture needle handle part touches shrapnel device and separated.
2. single-hand safety remaining needle according to claim 1, is characterized in that, described remaining needle main body comprises: for being retained in flexible pipe in human body, for the connection tube that connects transfusion device and for connecting the Y-type three way type of described flexible pipe and connection tube.
3. according to the described single-hand safety remaining needle of any one claim in claim 2; it is characterized in that; three interfaces of described threeway; first interface is connected with described flexible pipe; the second interface is connected with described connection tube, and the 3rd interface is connected with protective sleeve, and described the 3rd interface end is provided with a sealing-plug; sealing plug central authorities are provided with one and only hold the first through hole that a root puncture pin passes through, and described the 3rd interface end surface is provided with groove.
4. single-hand safety remaining needle according to claim 2, is characterized in that, at stage casing and the end of described connection tube, is respectively equipped with one-hand clip and joint.
5. single-hand safety remaining needle according to claim 2, is characterized in that, also disposes the needle point protective sleeve outside described flexible pipe.
6. single-hand safety remaining needle according to claim 1, is characterized in that, described puncture needle surface is provided with a needle point groove, and described puncture needle is hollow needle tubing from needle point to groove position.
7. single-hand safety remaining needle according to claim 1; it is characterized in that; described protective sleeve tail end sealing; comprise: protective sleeve main body and the closure plate that is positioned at the protective sleeve top; described closure plate central authorities are provided with one and only hold the second through hole that a root puncture pin passes through; described protective sleeve body interior also is provided with a groove otch, and described puncture needle surface is provided with a needle point groove, and described groove otch can engage with this needle point groove.
8. single-hand safety remaining needle according to claim 7; it is characterized in that; distance between described groove otch and closure plate is greater than the most advanced and sophisticated length to the needle point groove of described needle point, and described shrapnel device is positioned at protective sleeve front end inside, interlocks with the remaining needle main body.
9. single-hand safety remaining needle according to claim 7, is characterized in that, described protective sleeve side is provided with a protective sleeve handle.
10. single-hand safety remaining needle according to claim 7; it is characterized in that; described shrapnel device comprise perpendicular to described groove otch and extend to grab beyond protective sleeve, perpendicular to described grab and for the fixed leg of fixation spring tab device and parallel with described fixed leg and establish and be against the elastic shell fragment that has between grab and described protective sleeve main body; described shell fragment is arranged at the rear of described fixed leg, and described protective sleeve and remaining needle main body interlock by described grab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320115519.5U CN203370150U (en) | 2013-03-14 | 2013-03-14 | Single-hand-operated safe detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320115519.5U CN203370150U (en) | 2013-03-14 | 2013-03-14 | Single-hand-operated safe detaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203370150U true CN203370150U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320115519.5U Withdrawn - After Issue CN203370150U (en) | 2013-03-14 | 2013-03-14 | Single-hand-operated safe detaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203370150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127580A (en) * | 2013-03-14 | 2013-06-05 | 苏州大学 | Singlehanded safety indwelling needle |
-
2013
- 2013-03-14 CN CN201320115519.5U patent/CN203370150U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127580A (en) * | 2013-03-14 | 2013-06-05 | 苏州大学 | Singlehanded safety indwelling needle |
| CN103127580B (en) * | 2013-03-14 | 2014-11-05 | 苏州大学 | Singlehanded safety indwelling 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: 20140101 Effective date of abandoning: 20141105 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20141105 |
|
| RGAV | Abandon patent right to avoid regrant |