CN1134272C - Multipurpose high-safety needle staying on vein for automatic infusion - Google Patents
Multipurpose high-safety needle staying on vein for automatic infusion Download PDFInfo
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- CN1134272C CN1134272C CNB981173438A CN98117343A CN1134272C CN 1134272 C CN1134272 C CN 1134272C CN B981173438 A CNB981173438 A CN B981173438A CN 98117343 A CN98117343 A CN 98117343A CN 1134272 C CN1134272 C CN 1134272C
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Abstract
The present invention relates to a multi-purpose vein indwelling needle for safe automatic transfusion, which comprises a Y-tube joint, an indwelling soft needle, a steel needle and a transfusion tube, wherein the first joint end and the second joint end of the Y-tube joint are axial aligned; the indwelling soft needle is nested with the first joint end of the Y-tube joint; the steel needle is sheathed in a sleeve in a sliding way, which is nested with the second joint end. A convex post of a steel needle base passes through a gas vent and is communicated with the outside world. The base is provided with a buckling part which downwards buckles the buckling and connecting part of the sleeve so that the needle body recedes out of the soft needle part and is hidden in the sleeve. The transfusion tube is connected with a third joint end in series. After the indwelling soft needle, together with the needle body, is penetrated into patient's vein, the needle body is backwards pulled from the sleeve so that the needle body inwards shrinks and is hidden in the sleeve, which can avoid accidents that people are punctured and diseases are infected because the needle body is exposed. Therefore, injection can be easily completed.
Description
Technical field
The present invention relates to a kind of sanitation and health-care field and be input into medium in the body or impose on apparatus on the body, particularly relate to a kind of multipurpose high-safety needle staying on vein for automatic infusion.The present invention is that the application number that the applicant submitted to Patent Office of the People's Republic of China on June 23rd, 1998 is 98102703.2, and name is called the improvement invention of the application for a patent for invention case of " multipurpose automatic transfusion vein indwelling needle ".
Background technology
Employed venous detaining needle (IV.X-RAY CATHETER NEEDLE) all is to be engaged in intravenous injection with single injection needle for medical personnel to use in medical treatment at present, and above-mentioned existing venous detaining needle, see also shown in Figure 1, it comprises: one keeps somewhere a soft pin 100 and a draw point 200, wherein the needle body 200a of this draw point 200 is placed through among the soft pin 100a of portion that keeps somewhere soft pin 100, to increase the hardness of this soft pin 100a of portion, make the soft pin 100a of portion that keeps somewhere soft pin 100 can successfully be inserted in patient's the blood vessel, after the soft pin 100a of portion that will keep somewhere soft pin 100 inserts vein blood vessel, the medical worker must push down this soft pin 100a of portion with a finger F, to prevent that the intravital blood of patient from refluxing, and the another hands needs simultaneously draw point 200 to be pulled back, and it is extracted out from keep somewhere soft pin 100, then again a drop tube for transfusion 300 is serially connected with this and keeps somewhere soft pin 100, thereby finish the step of injection, make medicinal liquid can successfully inject human body, but above-mentioned existing remaining needle, it still has following shortcoming in use:
1, when medical personnel pinned the soft pin 100a of portion that keeps somewhere soft pin 100 on the other hand, another hands detaches draw point 200 again, is connected in series tube for transfusion 300 again, seems in a rush in operation, and was extremely inconvenient.
2, when draw point 200 was extracted out, it promptly is exposed to the external world fully, causes medical personnel to be wounded by stabbing easily, and infects diseases such as AIDS, acute, chronic hepatitis, and was very dangerous.
The application number that oneself submitted to Patent Office of the People's Republic of China on June 23rd, 1998 aforementioned the applicant is 98102703.2, name is called in the application for a patent for invention of " multipurpose automatic transfusion vein indwelling needle ", cross-perforating is not set on its needle body, and so, this needle body is not owing to there is cross-perforating, and when injection is used, air in the needle tubing can flow in patient's the blood vessel, and along with blood flows to heart, causes the undesired of heart of patient to beat, influence health, and truly have improved necessity.
This shows that above-mentioned existing venous detaining needle still has many defectives, and the assistant officer waits to be improved.
Because the defective that above-mentioned existing venous detaining needle exists, the inventor is based on abundant practical experience and Professional knowledge, through constantly studying, design, and after studying sample repeatedly and improving, creates the present invention finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing venous detaining needle exists, and provide a kind of multipurpose high-safety needle staying on vein for automatic infusion, make it be provided with the Y-pipe joint of new structure, keep somewhere soft pin, draw point and tube for transfusion, be provided with cross-perforating at syringe needle, air when injection in the needle tubing can not flow in patient's the blood vessel, and can not influence health, make medical personnel when application is of the present invention, can thrust behind patient's vein together with the draw point needle body keeping somewhere soft pin earlier, layback moves back this draw point needle body behind the sleeve again, making contracts in this draw point needle body is placed in the sleeve, and can avoid the draw point needle body to expose, cause the accident of stabbing medical personnel and catching, and can finish injecting step at leisure.
The objective of the invention is to realize by following technical scheme.A kind of multipurpose high-safety needle staying on vein for automatic infusion according to the present invention's proposition, it comprises a Y-pipe joint, one keeps somewhere soft pin, one draw point, one sleeve and a front end are connected with the tube for transfusion of union joint, it is characterized in that, wherein: above-mentioned Y-pipe joint, the tube body that includes hollow, epimere at this tube body defines first tip side that is formed with hollow, and the hypomere of this tube body defines second tip side that is formed with hollow, this first tip side, second tip side is that the central axial line of complying with this tube body axially aligns, and at the nested rubber cap sleeve that is provided with of the terminal periphery of this second tip side, and outside projection is provided with the 3rd tip side on first tip side of this tube body and the stage casing between second tip side, to be connected with the union joint of tube for transfusion; The soft pin of above-mentioned indwelling includes needle stand, is concaved with the cover cave in this needle stand bottom, and on first tip side that is nested in the Y-pipe joint, and the top of this needle stand extends upward the soft pin portion that is provided with; Keep somewhere soft pin and also be arranged with needle cover, upwards be concaved with the protective jacket cave, be nested in outside the needle stand, and in it, contain soft pin portion from the bottom of lid; Above-mentioned sleeve, its top is nested in second tip side of this Y-pipe joint by the rubber cap cover, and telescopic end is provided with a snapping portion; Above-mentioned draw point, it includes pedestal, this pedestal sliding sleeve and is provided with protruded stigma in the ground projection of the top axial of this pedestal in sleeve, and when usual, be piercing in this rubber cap sleeve above, and run through at this protruded stigma and to be provided with gas port; Lengthways extend upward in addition and be connected with needle body, and the center through hole mutual conduction of this gas port and needle body in the upper end of this protruded stigma, and this needle body operationally cunning place this to keep somewhere the soft pin portion of soft pin; This pedestal is provided with clamping part in addition; The bottom of pedestal is lengthways extended and is provided with a pull bar, and the bottom of this pull bar protrudes in this telescopic bottom, and is provided with leader portion; After soft pin portion inserted vein, pull bar pulling draw point entered sleeve; When the pulling pull bar made needle body withdraw from this soft pin portion fully to enter sleeve pipe, the downward slippage of clamping part snapped in the telescopic snapping portion, so that needle body firmly is built in the sleeve; Sleeve puts from the rubber cap that is nested in the above-mentioned second tip side periphery in the lump together with built-in draw point and unloads, to finish injecting program; Above-mentioned pull bar is provided with the groove that fractures near the position of pedestal; The union joint of tube for transfusion is series at the 3rd tip side of this Y-pipe joint, injects in patient's body through keeping somewhere soft pin to carry medicinal liquid.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid multipurpose high-safety needle staying on vein for automatic infusion, the outer rim of the 3rd tip side of wherein said Y-pipe joint is provided with an enclosing cover, is covered on the outlet of the 3rd tip side when usual.
Aforesaid multipurpose high-safety needle staying on vein for automatic infusion, wherein said Y-pipe joint is made by plastic material.
Aforesaid multipurpose high-safety needle staying on vein for automatic infusion, the clamping part of wherein said draw point pedestal are that the periphery at this pedestal is concaved with a circular rabbet, are provided with a lip portions and this telescopic snapping portion is a root edge at this telescopic hollow trepanning.
Aforesaid multipurpose high-safety needle staying on vein for automatic infusion, the clamping part of wherein said draw point pedestal be from this pedestal bottom upwards ring be concaved with a caulking groove, and should be telescopic snapping portion be from its bottom upwards ring be equipped with the ring wall of dashing forward.
Aforesaid multipurpose high-safety needle staying on vein for automatic infusion, the clamping part of wherein said draw point pedestal are to be concaved with a L type groove on its circumferential surface at least, and this telescopic snapping portion for from its inwall at least projection be provided with a prominent pin.
The present invention compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the present invention be provided with new structure the Y-pipe joint, keep somewhere soft pin, draw point and tube for transfusion, be provided with cross-perforating at syringe needle, the air in when injection needle tubing can not flow in patient's the blood vessel, and can not influence health, be suitable for practicality more.Structurally since its include: Y-pipe joint, its first tip side, second tip side be for axially aligning, and make the nested rubber cap sleeve of this second tip side; Keep somewhere first tip side that soft pin is nested in this Y-pipe joint; Draw point slides in the sleeve, this sleeve is nested on second tip side of this Y-pipe joint, and make this draw point needle body axially be placed through this and keep somewhere among the soft pin, and wear at this draw point pedestal and to penetrate gas port and be communicated with extraneously, flow to this smoothly with the guiding point drops physic liquor and keep somewhere soft pin; So tube for transfusion can be serially connected with the 3rd tip side of this Y-pipe joint, make and carry medicinal liquid in this keeps somewhere soft pin injection patient body.Make medical personnel when application is of the present invention, can thrust behind patient's vein together with the draw point needle body keeping somewhere soft pin earlier, layback moves back this draw point needle body behind the sleeve again, making contracts in this draw point needle body is placed in the sleeve, and can avoid the draw point needle body to expose, cause the accidental situation of stabbing medical personnel and catching, and can finish injecting step at leisure.
Because the present invention keeps somewhere soft pin at first tip side of Y-pipe joint nested, and the nested sleeve of its second tip side, the sliding needle body of putting a draw point in this sleeve, and this draw point body operationally axially is placed through keep somewhere in the soft pin portion of soft pin, the 3rd tip side of this Y-pipe joint is connected in series a tube for transfusion in addition, enter in the Y-pipe joint with the guiding medicinal liquid, the needle body of this draw point is shunk back to be built in this sleeve, with with this sleeve discard processing in the lump, and have following advantage:
1, the needle body of draw point does not expose, and can avoid stabbing other people accidental situation effectively, has safety.
2, it manipulates more existing venous detaining needle conveniently, can be more calm in the operation.
3, simple structure, assembling are easy.
In sum, draw point needle body of the present invention does not expose in sleeve for hiding snaps into position, so the safety can guarantee to handle Biohazard Waste the time; In addition during the needle body of the draw point of the present invention in removing soft pin portion, do not need as existing venous detaining needle, must first on the other hand pressure keep somewhere soft pin by this, thus very calm on manipulating, and highlight practicality of the present invention and novelty more; The present invention can be widely applicable for multiple uses such as the transfusion of adult, child or animal medical treatment or blood transfusion and use.No matter it structurally or bigger improvement is all arranged on the function, and produced handy and practical effect, and have the effect of enhancement really, thereby be suitable for practicality more, really is a new and innovative, progressive, practical new design.
Description of drawings
Fig. 1 is the structural representation of existing venous detaining needle.
Fig. 2 is an exploded perspective view of the present invention.
Fig. 3 is an axonometric chart of the present invention.
Structural representation when Fig. 4 is the soft pin insertion of indwelling of the present invention patient.
Fig. 5 is a part structure for amplifying sketch map among Fig. 4.
Fig. 6 pulls back from Fig. 4 to move back and the fixing structural representation of draw point needle body.
Fig. 7 takes off draw point needle body and telescopic structural representation from Fig. 6.
Fig. 8 is the draw point second example structure sketch map of the present invention.
Fig. 9 is draw point the 3rd an example structure sketch map of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its concrete structure of multipurpose high-safety needle staying on vein for automatic infusion, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also Fig. 2 to shown in Figure 7, multipurpose high-safety needle staying on vein for automatic infusion of the present invention, it comprises Y-pipe joint 1, keeps somewhere the tube for transfusion 4 that soft pin 2, draw point 3, sleeve 33 and front end are connected with union joint, wherein:
This Y-pipe joint 1, its first tip side 11, second tip side 12 axially align, and at the terminal nested rubber cap sleeve 121 of second tip side 12; Keep somewhere soft pin 2, be nested on first tip side 11 of this Y-pipe joint 1; Draw point 3 includes needle body 32 sliding sleeves in sleeve 33, and the needle body 32 of this draw point 3 axially is placed through in the soft pin 2 of indwelling; This tube for transfusion 4, be serially connected with the 3rd tip side 13 of Y-pipe joint 1, for carrying medicinal liquid to inject in patient's body through keeping somewhere soft pin 2, and make medical personnel when using injection, after can will keeping somewhere soft pin 2 earlier and inserting patient's vein in the lump together with the needle body 32 of draw point 3, move back the needle body 32 of draw point 3 again from the back layback of sleeve 33, and make contract in the needle body 32 of draw point 3 and buckle be hidden in the sleeve 33, expose with the needle body 32 of avoiding this draw point 3, and stab accidents such as human body, generation infection, and make the medical worker can finish injecting program by easy stages.
Above-mentioned Y-pipe joint 1, can make by plastic material, it includes tube body 10, define at the epimere of this tube body 10 and to be formed with first tip side 11, and define at the hypomere of this tube body 10 and to be formed with second tip side 12, and at the terminal nested rubber cap sleeve 121 that is provided with of this second tip side 12, make wherein this first tip side 11, second tip side 12 is that the central axial line 10a according to tube body 10 axially aligns, and be provided with one the 3rd tip side 13 in the outside projection in the stage casing of tube body 10, and the outer rim of the 3rd tip side 13 is provided with enclosing cover 131, with the outlet 132 that often covers the 3rd tip side 13.
The soft pin 2 of above-mentioned indwelling sees also Fig. 2 to shown in Figure 5, and it comprises: needle stand 21, soft pin portion 22 and needle cover 23, wherein:
This needle stand 21 is concaved with a cover cave 211, on first tip side 11 that is nested in this Y-pipe joint 1 identically in its bottom;
This soft pin portion 22 extends upward from the top of needle stand 21, and axially runs through injection orifice 221;
This needle cover 23 upwards is concaved with protective jacket cave 231 from its bottom, being nested in outside the needle stand 21, and contains soft pin portion 22 in it.
Above-mentioned draw point 3, it comprises pedestal 31, needle body 32 and sleeve 33, wherein:
This pedestal 31, its bottom is provided with pull bar 311 for lengthways connecting to stretch, and be provided with clamping part 312 on the pedestal 31 at least, in addition on pedestal 31 axially projection be provided with a protruded stigma 313, in second tip side 12 that is placed through this Y-pipe joint 1, and radially run through to be provided with gas port 313a on the top of protruded stigma 313, and make this gas port 313a often be positioned at the top of rubber cap sleeve 121;
This needle body 32, the top pars intermedia and being lengthways that is embedded at the protruded stigma 313 of pedestal 31 extends upward, with the sliding soft pin portion 22 of keeping somewhere soft pin 2 that places identically, and the center through hole 320 of this needle body 32 and the gas port 313a mutual conduction of protruded stigma 313, so that the air in the Y-pipe joint 1 can follow the gas port 313a of this protruded stigma 313, the center through hole 320 of needle body 32 is discharged to the external world;
This sleeve 33, its be provided with hollow trepanning 331 with sliding sleeve outside pedestal 31, and can contain needle body 32 in it, outside the rubber cap sleeve 121 of the top section of the hollow trepanning 331 of this sleeve 33 for second tip side 12 that is nested in Y-pipe joint 1 identically; On the inner wall of hollow trepanning 331, be provided with snapping portion 332 at least in addition, with the clamping part 312 that is snapped in pedestal 31 accordingly.
The pedestal 31 of aforesaid draw point 3, its bottom is provided with a pull bar 311 for lengthways connecting to stretch, and end is connected with the 311a of leader portion (as Fig. 1, shown in Figure 4), and this handle portion 311a often is exposed to outside the sleeve 33, draws for medical personnel and moves back this needle body 32.
The clamping part 312 of aforesaid pedestal 31, see also Fig. 2 to shown in Figure 7, the clamping part 312 of this pedestal 31 is provided with a circular rabbet for forming on pedestal 31, and the snapping portion 332 of sleeve 33, be to form at the root edge of the hollow trepanning 331 of this sleeve 33 to be provided with a lip portions, at pedestal 31 operatively during the downward slippage of interlock needle body 32, the formed circular rabbet of its periphery (being clamping part 312), the lip portions of buckle sleeve 33 (being snapping portion 332) accordingly, needle body 32 can firmly be built in the sleeve 33, not hurt sb.'s feelings and do not expose.
See also shown in Figure 8, be second embodiment of draw point of the present invention, the draw point 3a that present embodiment disclosed, the clamping part 312a of its pedestal 31a, be to be concaved with a caulking groove for upwards encircling from its bottom with modifying, and the 332a of snapping portion of this sleeve 33a, be for modify ground from its bottom upwards ring be equipped with a prominent ring wall, with accordingly with the mutual buckle of clamping part 312a of pedestal 31a.
Other sees also shown in Figure 9, be draw point the 3rd embodiment of the present invention, the draw point 3b that present embodiment disclosed, the clamping part 312b of its pedestal 31b, for can on its circumferential surface, being concaved with a L type groove at least with modifying, the 332b of snapping portion of sleeve 33b modifies ground formation to be provided with a prominent pin in addition, so that the 332b of snapping portion of the clamping part 312b slippage downwards of this pedestal 31b and rotary manipulation ground this sleeve of buckle 33b, so that the 332b of snapping portion of the clamping part 312b slippage downwards of this pedestal 31b and rotary manipulation ground this sleeve of buckle 33b.The specific constructive form of this clamping part and snapping portion, the present invention is not limited.
Please consult Fig. 5, shown in Figure 6 again, disclosed draw point 3, wherein this pedestal 31 its periphery of the pull bar 311 that extends downwards, also be concaved with the groove 311b (as shown in Figure 5) that fractures at least, be beneficial to medical personnel pull back move back this pull bar 311 after, can be beneficial to unload lower sleeve 33 backs and needle body 32 discard processing in the lump according to this groove 311b that fractures this pull bar 311 (shown in the imaginary line of Fig. 6) that fractures.
See also tube for transfusion shown in Figure 6, above-mentioned 4, can be the infusion tube of generic point drops physic liquor, be connected with a union joint 41, to be connected in series the 3rd tip side 13 of this Y-pipe joint 1, to be made for the need of fluid infusion at its front end.
Below use situation of the present invention is described as follows.See also Fig. 2 to shown in Figure 5, the present invention is when using, can earlier the union joint 41 of this tube for transfusion 4 be serially connected with the 3rd tip side 13 of Y-pipe joint 1, and take off and overlap the needle cover 23 that is overlying on outside the soft pin 2 of indwelling, as Fig. 4, shown in Figure 5, the air A that originally retained in this tube for transfusion 4 this moment just can scurry the center through hole 320 through needle body 32 via the gas port 313a of draw point 3 protruded stigmas 313, and be discharged outside to.Thus, just can make medicinal liquid in the drop bottle (not shown) successfully via the flow through center through hole 320 of needle body 32 of the gas port 313a of draw point 3 protruded stigmas 313, flow out towards the external world, make in tube for transfusion 4 and the Y-pipe joint 1 and be full of medicinal liquid, and can avoid unexpected with medical treatment takes place in the injection of the air in the tube for transfusion 4 human body when injection, since this moment draw point 3 needle body 32 for slide the soft pin portion 22 that places the soft pin 2 of indwelling identically, so making this soft pin portion 22 have enough intensity can successfully be inserted in the vein of patient B, in addition because this Y-pipe joint 1, second tip side, 12 ends nested rubber cap sleeve 121 for flexibly being coated on the outer rim of the protruded stigma 313 of draw point 3, die and enter the medicinal liquid of Y-pipe joint 1 through tube for transfusion 4, not the worry that leaks from this second tip side 12.
See also shown in Figure 6, then medical personnel are from the bottom of sleeve 33, the handle portion 311a that is connected with pull bar 311 ends pulls back and moves back pedestal 31, that is draw withdraw of the needle body 32 in the lump, this needle body 32 is withdrawed from fully in soft pin portion 22, when needle body 32 withdraws from rubber cap sleeve 121 fully, this rubber cap sleeve 121 i.e. the hole that originally pierced through by protruded stigma 313 and needle body 32 of sealing flexibly, reseal the outlet of second tip side 12 of Y-pipe joint 1, then can continue to spur the handle portion 311a that these pull bar 311 ends are connected with downwards, the clamping part 312 of pedestal 31 and the snapping portion 332 of sleeve 33 are fastened togather mutually, make this needle body 32 buckle stably, be built in the sleeve 33.This moment, medical personnel can be according to the groove 311b that fractures on the pull bar 311, outer pull bar 311 parts of sleeve 33 fractureed (shown in imaginary line among Fig. 6) will be protruded in, and when drawing withdraw of the needle body 32, the medicinal liquid that enters Y-pipe joint 1 from the 3rd tip side 13 promptly automatically flows in the body of patient B by keeping somewhere soft pin 2 from first tip side 11.
See also shown in Figure 7, then medical personnel can be with sleeve 33 together with the needle body 32 that is built in the draw point 3 in the sleeve 33 in the lump from second tip side, 12 removals, with discard processing in the lump, and finish the injecting program of remaining needle.If this moment, needs of patients was when injecting other medicaments, then can insert syringe cylinders by the rubber cap sleeve 121 of second tip side, 12 ends, inject and get final product, use very convenient.
Because the needle body 32 of draw point 3 of the present invention does not expose in sleeve 33 for hiding the ground snaps into position, it is hereby ensured the safety when handling Biohazard Waste; In addition during the needle body 32 of the draw point 3 of the present invention in removing soft pin portion 22, do not need as existing venous detaining needle, must the first pressure of proficiency keep somewhere soft pin 2 by this, thus very calm on manipulating, thus highlight practicality of the present invention and novelty more.
Because it is the nested soft pin 2 of an indwelling that is provided with that architectural feature of the present invention is first tip side 11 of this Y-pipe joint 1, and its second tip side 12 is the nested sleeves 33 that are provided with, the sliding needle body 32 of putting a draw point 3 in sleeve 33, and needle body 32 operatively axially is placed through keep somewhere in the soft pin portion 22 of soft pin 2, the 3rd tip side 13 of this Y-pipe joint 1 is that serial connection one tube for transfusion 4 enters in the Y-pipe joint 1 with the guiding medicinal liquid in addition, therefore when injection, the needle body 32 of this draw point 3 is shunk back be built in the sleeve 33, and can be with sleeve 33 discard processing in the lump.Because the needle body 32 of draw point 3 does not expose, so can avoid stabbing other people accidental situation effectively, has safety.It manipulates more existing venous detaining needle conveniently in addition, can be more calm in operation.Therefore, the present invention has simple structure, assembling is easy to effect, can be widely applicable for multiple uses such as the transfusion of adult, child or animal medical treatment or blood transfusion and use.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1, a kind of multipurpose high-safety needle staying on vein for automatic infusion, it comprises that a Y-pipe joint, the soft pin of an indwelling, a draw point, a sleeve and a front end are connected with the tube for transfusion of union joint, it is characterized in that, wherein:
Above-mentioned Y-pipe joint, the tube body that includes hollow, epimere at this tube body defines first tip side that is formed with hollow, and the hypomere of this tube body defines second tip side that is formed with hollow, this first tip side, second tip side are that the central axial line of complying with this tube body axially aligns, and at the nested rubber cap sleeve that is provided with of the terminal periphery of this second tip side, and outside projection is provided with the 3rd tip side on first tip side of this tube body and the stage casing between second tip side, to be connected with the union joint of tube for transfusion;
The soft pin of above-mentioned indwelling includes needle stand, is concaved with the cover cave in this needle stand bottom, and on first tip side that is nested in the Y-pipe joint, and the top of this needle stand extends upward the soft pin portion that is provided with;
Keep somewhere soft pin and also be arranged with needle cover, upwards be concaved with the protective jacket cave, be nested in outside the needle stand, and in it, contain soft pin portion from the bottom of lid;
Above-mentioned sleeve, its top is nested in second tip side of this Y-pipe joint by the rubber cap cover, and telescopic end is provided with a snapping portion;
Above-mentioned draw point, it includes pedestal, this pedestal sliding sleeve and is provided with protruded stigma in the ground projection of the top axial of this pedestal in sleeve, and when usual, be piercing in this rubber cap sleeve above, and run through at this protruded stigma and to be provided with gas port;
Lengthways extend upward in addition and be connected with needle body, and the center through hole mutual conduction of this gas port and needle body in the upper end of this protruded stigma, and this needle body operationally cunning place this to keep somewhere the soft pin portion of soft pin;
This pedestal is provided with clamping part in addition;
The bottom of pedestal is lengthways extended and is provided with a pull bar, and the bottom of this pull bar protrudes in this telescopic bottom, and is provided with leader portion;
After soft pin portion inserted vein, pull bar pulling draw point entered sleeve; When the pulling pull bar made needle body withdraw from this soft pin portion fully to enter sleeve pipe, the downward slippage of clamping part snapped in the telescopic snapping portion, so that needle body firmly is built in the sleeve; Sleeve puts from the rubber cap that is nested in the above-mentioned second tip side periphery in the lump together with built-in draw point and unloads, to finish injecting program;
Above-mentioned pull bar is provided with the groove that fractures near the position of pedestal;
The union joint of tube for transfusion is series at the 3rd tip side of this Y-pipe joint, injects in patient's body through keeping somewhere soft pin to carry medicinal liquid.
2, multipurpose high-safety needle staying on vein for automatic infusion according to claim 1 is characterized in that the outer rim of the 3rd tip side of wherein said Y-pipe joint is provided with an enclosing cover, is covered on the outlet of the 3rd tip side when usual.
3, multipurpose high-safety needle staying on vein for automatic infusion according to claim 1 is characterized in that wherein said Y-pipe joint made by plastic material.
4, according to the described multipurpose high-safety needle staying on vein for automatic infusion of arbitrary claim in the claim 1 to 3, the clamping part that it is characterized in that wherein said draw point pedestal is that the periphery at this pedestal is concaved with a circular rabbet, is provided with a lip portions and this telescopic snapping portion is a root edge at this telescopic hollow trepanning.
5, according to the described multipurpose high-safety needle staying on vein for automatic infusion of arbitrary claim in the claim 1 to 3, the clamping part that it is characterized in that wherein said draw point pedestal be from this pedestal bottom upwards ring be concaved with a caulking groove, and should be telescopic snapping portion be from its bottom upwards ring be equipped with the ring wall of dashing forward.
6, according to the described multipurpose high-safety needle staying on vein for automatic infusion of arbitrary claim in the claim 1 to 3, the clamping part that it is characterized in that wherein said draw point pedestal is to be concaved with a L type groove on its circumferential surface at least, and this telescopic snapping portion for from its inwall at least projection be provided with a prominent pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981173438A CN1134272C (en) | 1998-08-19 | 1998-08-19 | Multipurpose high-safety needle staying on vein for automatic infusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981173438A CN1134272C (en) | 1998-08-19 | 1998-08-19 | Multipurpose high-safety needle staying on vein for automatic infusion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1245077A CN1245077A (en) | 2000-02-23 |
| CN1134272C true CN1134272C (en) | 2004-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981173438A Expired - Fee Related CN1134272C (en) | 1998-08-19 | 1998-08-19 | Multipurpose high-safety needle staying on vein for automatic infusion |
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| Country | Link |
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| CN (1) | CN1134272C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101947337B (en) * | 2010-09-08 | 2013-09-18 | 福建省百仕韦医用高分子股份有限公司 | Closed type detaining needle catheter assembly |
| CA3044827C (en) | 2011-09-02 | 2021-06-01 | Unitract Syringe Pty Ltd | Insertion mechanism for a drug delivery pump |
| MX353381B (en) | 2012-07-11 | 2018-01-10 | Unitract Syringe Pty Ltd | Insertion mechanisms having vented fluid pathways for drug delivery pumps. |
| AU2015323994A1 (en) | 2014-09-29 | 2017-05-18 | Unl Holdings Llc | Rigid needle insertion mechanism for a drug delivery pump |
| US10744305B2 (en) * | 2015-10-28 | 2020-08-18 | Becton, Dickinson And Company | Ergonomic IV systems and methods |
| CN106693106B (en) * | 2017-01-11 | 2019-05-07 | 林发绍 | A kind of infusion pipe |
-
1998
- 1998-08-19 CN CNB981173438A patent/CN1134272C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1245077A (en) | 2000-02-23 |
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