CN102389604B - Sealing rubber plug used with detaining needle - Google Patents
Sealing rubber plug used with detaining needle Download PDFInfo
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- CN102389604B CN102389604B CN 201110202022 CN201110202022A CN102389604B CN 102389604 B CN102389604 B CN 102389604B CN 201110202022 CN201110202022 CN 201110202022 CN 201110202022 A CN201110202022 A CN 201110202022A CN 102389604 B CN102389604 B CN 102389604B
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Abstract
The invention relates to a sealing rubber plug used with a remaining needle, which comprises a plug body, wherein a puncture hole is formed in the plug body from top to bottom; the puncture hole is separated into an upper-section hole, a middle-section hole and a lower-section hole; the diameter of the upper-section hole is bigger than that of the lower-section hole; the middle-section hole is a conical guide hole; and the bigger end of the conical guide hole is connected with the upper-section hole, and the smaller end of the conical guide hole is connected with the lower-section hole. Preferably, the inclination angle of the conical guide hole ranges between 45 degrees and 60 degrees. By using the rubber plug, the assembling efficiency and assembling qualification rate can be ensured, and pollution caused by particles can be avoided. If the lower end of the puncture hole is positioned above the bottom surface of the plug body, a cutting mark is formed on the bottom surface of the plug body corresponding to the diameter direction of the lower-section hole, and the width of the cutting mark is smaller than or equal to the diameter of the lower-section hole, thereby realizing better seal.
Description
Technical field
The invention belongs to medical instruments field, be specifically related to a kind of sealing plug.
Background technology
At present, domestic and international medical institutions at different levels have generally used remaining needle as the infusion treatment instrument.Remaining needle can reduce the misery of repeated localised puncture, the protection blood vessel; Alleviate nursing staff's work load; Be used for venous transfusion, blood transfusion and blood sampling, good venous channel be provided for the critical patient rescues.Its structure mainly comprises sheath, remaining needle sleeve pipe, casing seat, puncture draw point, infusion connector assembly; The sleeve pipe rear end is connected with casing seat; The sealing plug is housed in the casing seat; The puncture draw point was inserted plug hermetically, was positioned at the remaining needle sleeve pipe, and the casing seat side direction is connected with transfusion three way cock assembly through connecting leg.After medical personnel use venous indwelling to be directed against the patient's vein vascular puncture; The draw point that will puncture is extracted from casing seat rear end and remaining needle sleeve pipe; Comparatively softish sleeve portion is kept somewhere in the patient's vein blood vessel, carries out continuously to the patient or transfusion discontinuously through the remaining needle sleeve pipe.Plug is used for the remaining needle fluid loop, mainly in order to prevent liquid leakage and to exosmose in transfusion with during keeping somewhere.In the production of remaining needle, use, find that there is unreasonable part in original plug structure, cause and produce that efficiency of assembling is low, the assembling qualification rate is low, can take buffings out of when the puncture draw point passes, be easy to generate particle contamination and seal shortcomings such as unreliable.Therefore can influence production cost, and might cause the risk of blood capillary thrombosis, be unfavorable for protecting patient's blood vessel because of particle contamination.
In Chinese utility model patent description CN201008698Y, disclose a kind of medical vein remaining needle, this remaining needle transfusion cavity is provided with plug, and plug is provided with puncturing hole.To any explanation of puncturing hole, but these those skilled in the art can't not realize the processing design of puncturing hole to this description, therefore can't realize the beneficial effect that puncturing hole possibly bring yet.A kind of hemostatic seal plug of vein-retaining needle is also disclosed in another piece Chinese invention patent prospectus CN1994488A; This hemostatic seal plug of vein-retaining needle is installed in the Injector Bushing base; Cylindrical; This hemostatic seal plug of vein-retaining needle front portion is dissectd equably vertically and is two halves, the rear portion along the front portion same tangent plane at the center the die-cut trace that cuts open that is provided with a width less than cylindrical diameter.Before sealing was used, the puncture draw point was axially to go up through this part, and puncture is extracted the puncture draw point after accomplishing, and leans on the extruding of casing seat inwall and the elasticity of sealing-plug rubber itself that pin hole is sealed.
With sealing in the plug,, therefore can't judge that can it well puncture and sealing effectiveness at above-mentioned first kind of venous detaining needle owing to disclose the structure of puncturing hole., just forwardly dissect with sealing in the plug at above-mentioned second kind of venous detaining needle.Because the puncture draw point is very thin, has good elasticity, when the puncture draw point gets into plug, when especially getting into plug anterior, can't guarantee that almost it advances along the plug axial centre.Therefore, second kind of sealing-plug can not guarantee efficiency of assembling and assembling qualification rate well, also can't avoid particle contamination.
Summary of the invention
The problem that the present invention is directed to above-mentioned prior art existence is made improvement, i.e. it is supporting with the sealing plug that the technical problem that the present invention will solve provides a kind of remaining needle.This sealing plug can significantly improve efficiency of assembling and assembling qualification rate, and the puncture draw point passes Shi Buhui and takes buffings out of, has avoided particle contamination.
For solving the problems of the technologies described above; Remaining needle provided by the invention is supporting to comprise cock body with the sealing plug; In cock body, offer puncturing hole from top to bottom, said puncturing hole is divided into sector hole, middle sector hole reaches sector hole down, and the diameter of last sector hole is greater than the diameter of following sector hole; Middle sector hole is a conical pilot hole, and the big end of conical pilot hole connects the small end of going up sector hole, conical pilot hole and connects sector hole down.
In technique scheme, owing to offer puncturing hole from top to bottom in the sealing plug cock body, especially the epimere bore dia is bigger, and is very convenient when feasible puncture draw point has just got into plug, also can not penetrate plug, takes buffings out of; In puncture after draw point enters into a plug part, draw point basically can be along the plug axle center straight ahead, so plug hypomere bore dia adopts reduced size, can play good sealing effectiveness like this; The conical pilot hole of middle sector hole guided puncture draw point well gets into little space by big space, has avoided draw point to be punctured to plug, takes buffings out of.Thereby realized raising efficiency of assembling and assembling qualification rate, and, when passing the sealing plug, the puncture draw point can not take buffings out of, avoided particle contamination.
As a kind of improvement of the present invention, the lower end of following sector hole is positioned at the top of cock body bottom surface, on the corresponding hypomere bore dia direction of cock body bottom surface, offers and cuts open trace.And this width that cuts open trace is less than or equal to the diameter of sector hole down.Consider that the puncture draw point can be fully along straight ahead behind sector hole on the process and following sector hole, so decline is provided with and cuts open trace, promptly can guarantee not take out of buffings, can realize again sealing better.
As another kind of improvement the of the present invention; The angle of inclination of said guiding taper hole is between 45 degree to 60 degree; This angle can guarantee to puncture draw point on the one hand successfully by connection transition space, entering lower end, connection transition space, upper end; Also can limit the size that the upper end connects transition space and connection transition space, lower end on the other hand, be convenient to convenient for assembly and the realization excellent sealing.
Description of drawings
Do further explain below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 is a venous detaining needle plug construction sketch map of the prior art;
Fig. 2 is the supporting structural representation with the sealing plug of the remaining needle of first kind of embodiment of the present invention;
Fig. 3 is the supporting vertical view with the sealing plug of remaining needle shown in Figure 2;
Fig. 4 is the supporting structural representation with the sealing plug of the remaining needle of another embodiment of the present invention;
Fig. 5 is the supporting upward view with the sealing plug of remaining needle shown in Figure 4;
Among the figure, 1, the slit; 2, draw-in groove; 3, cut open trace; 11, cock body; 12, go up sector hole; 13, middle sector hole; 14, following sector hole; 15, cut open trace.
The specific embodiment
In order to understand the improvement that the present invention has done with respect to prior art better, before two kinds of specific embodiment of the present invention were elaborated, the prior art of earlier the background technology part being mentioned combined accompanying drawing explanation.
Fig. 1 shows disclosed venous detaining needle plug construction sketch map among the prior art Chinese invention patent ublic specification of application CN1994488A.The sealing plug is installed in the Injector Bushing base, and is cylindrical.The front portion of cylindrical seal plug integral body is vertically dissectd equably and is two halves, and there is slit 1 centre, whole two halves smooth surface of cutting.The rear portion along the front portion same tangent plane at the center die-cut be provided with a width less than cylindrical diameter cut open trace 3, slit 1 with cut open trace 3 and be communicated with.
For this sealing-plug, owing to dissect slit 1 broad, the puncture draw point is difficult to fully along the plug axis direction when getting into plug, more still can not pass along the plug axis direction during depths getting into plug like this.This just takes buffings easily out of, produces particle contamination, has also just reduced efficiency of assembling and assembling qualification rate simultaneously.
Two kinds of embodiments of the present invention can not be realized high efficiency assembling, high assembling qualification rate and the improvement that can't avoid particle contamination to make to remaining needle sealing plug of the prior art exactly.Respectively these two kinds of specific embodiment are made detailed description below.
As shown in Figure 2, remaining needle is supporting cylindrical with sealing plug cock body 11, and it is installed in the Injector Bushing base, and length is 2-10mm, and overall diameter is 1-8mm.Generally make with the elastomeric material of good springiness.The puncture draw point is vertically through the sealing plug during assembling.Be provided with annular groove in cock body 11 outer surface centre positions, its with casing seat in the annular protrusion that is provided with cooperate, be used for the sealing plug stably is fixed in the Injector Bushing base.Offer puncturing hole in the cock body 11 from top to bottom; Said puncturing hole is divided into sector hole 12, middle sector hole 13 reaches sector hole 14 down; The diameter of last sector hole 12 is greater than the diameter of following sector hole 14; Middle sector hole 13 is a conical pilot hole, and the big end of conical pilot hole connects the small end of going up sector hole 12, conical pilot hole and connects sector hole 14 down.The angle of inclination of conical pilot hole is 60 degree.In the assembling process, the puncture draw point gets into plug from last sector hole 12, and is very convenient when feasible puncture draw point has just got into plug because the epimere bore dia is bigger, also can not penetrate plug, takes buffings out of; In puncture after draw point enters into a plug part, draw point basically can be along the plug axle center straight ahead, therefore seal plug hypomere hole 14 and adopt reduced sizes, can play good sealing effectiveness like this; The taper guiding of middle sector hole 13 guided puncture draw point well gets into little space by big space, has avoided draw point to be punctured to plug, takes buffings out of.Thereby realized raising efficiency of assembling and assembling qualification rate, and, when passing the sealing plug, the puncture draw point can not take buffings out of, avoided particle contamination.
As shown in Figure 4, in second kind of embodiment of the present invention, the lower end of puncturing hole is positioned at the top of cock body bottom surface, on sector hole 14 diametric(al)s under the correspondence of cock body bottom surface, offers and cuts open trace 15, and this cuts open the trace width and equals the diameter of sector hole 14 down.Considering that puncture draw point sector hole 12 and following sector hole 14 on process are later can be fully along straight ahead, so cock body 11 end portions are provided with and cut open trace 15, promptly can guarantee not take out of buffings, can realize again sealing better.
Above-mentioned embodiment only is the preferred embodiment of the invention, and this structure can also be used for the transfusion device of safety type remaining needle, lucifuge remaining needle and band threeway etc.As long as sealing-plug is provided with up big and down small puncture space, and the centre has guide space, all falls in protection scope of the present invention.
Claims (4)
1. a remaining needle is supporting with the sealing plug; Comprise cock body; It is characterized in that: in cock body, offer puncturing hole from top to bottom, said puncturing hole is divided into sector hole, middle sector hole reaches sector hole down, and the diameter of last sector hole is greater than the diameter of following sector hole; Middle sector hole is a conical pilot hole, and the big end of conical pilot hole connects the small end of going up sector hole, conical pilot hole and connects sector hole down.
2. according to the supporting sealing plug of using of the described a kind of remaining needle of claim 1, it is characterized in that: the lower end of puncturing hole is positioned at the top of cock body bottom surface, on the corresponding hypomere bore dia direction of cock body bottom surface, offers and cuts open trace.
3. supporting with the sealing plug according to the described a kind of remaining needle of claim 2, it is characterized in that: this width that cuts open trace is less than or equal to the diameter of sector hole down.
4. according to claim 1, the supporting sealing plug of using of 2 or 3 described a kind of remaining needles, it is characterized in that: the angle of inclination of conical pilot hole is between 45 degree to 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202022 CN102389604B (en) | 2011-07-19 | 2011-07-19 | Sealing rubber plug used with detaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202022 CN102389604B (en) | 2011-07-19 | 2011-07-19 | Sealing rubber plug used with detaining needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102389604A CN102389604A (en) | 2012-03-28 |
| CN102389604B true CN102389604B (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110202022 Expired - Fee Related CN102389604B (en) | 2011-07-19 | 2011-07-19 | Sealing rubber plug used with detaining needle |
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| CN (1) | CN102389604B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014047889A1 (en) * | 2012-09-28 | 2014-04-03 | Zhang Jianming | Soft tube detaining infusion apparatus with combined and connected tube-needle |
| CN103857428B (en) * | 2012-09-28 | 2016-05-25 | 张建铭 | Bobbin general formula flexible pipe indwelling scalp acupuncture |
| CN103656848A (en) * | 2014-01-13 | 2014-03-26 | 顾虹 | Arteriovenous indwelling needle sealing plug |
| WO2018204779A1 (en) * | 2017-05-05 | 2018-11-08 | Regeneron Pharmaceuticals, Inc. | Auto-injector |
| CN110733749A (en) * | 2019-09-27 | 2020-01-31 | 锐嘉（宜兴）科技有限公司 | kinds of sealing isolation plug |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6036672A (en) * | 1998-05-12 | 2000-03-14 | Cabot Technology Corporation | Instrument seal |
| CN100493649C (en) * | 2006-01-06 | 2009-06-03 | 威海洁瑞医用制品有限公司 | Hemostatic seal plug of vein-retaining needle and method for producing same |
| CN202146486U (en) * | 2011-07-19 | 2012-02-22 | 山东济海医疗科技股份有限公司 | Rubber sealing stopper matched with retention needle for use |
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2011
- 2011-07-19 CN CN 201110202022 patent/CN102389604B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102389604A (en) | 2012-03-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Effective date of registration: 20160617 Address after: 271026 Shandong Province, Tai'an city Daiyue district (Tai'an Dawenkou Industrial Park) Patentee after: Shandong Dongda Medical Technology Co., Ltd. Address before: 255000, Shandong, Zhangdian, Shandong Province, 25 East Village Road, Zibo medical Polytron Technologies Inc Patentee before: Shandong Jihai Medical Technology Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20200719 |