CN103480060A - Convenient medical positive-pressure remaining needle - Google Patents
Convenient medical positive-pressure remaining needle Download PDFInfo
- Publication number
- CN103480060A CN103480060A CN201310420933.1A CN201310420933A CN103480060A CN 103480060 A CN103480060 A CN 103480060A CN 201310420933 A CN201310420933 A CN 201310420933A CN 103480060 A CN103480060 A CN 103480060A
- Authority
- CN
- China
- Prior art keywords
- extension tube
- wheel shaft
- extension
- positive pressure
- remaining needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001802 infusion Methods 0.000 claims abstract description 9
- 210000000515 tooth Anatomy 0.000 claims description 43
- 210000003462 vein Anatomy 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000001990 intravenous administration Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 210000003811 finger Anatomy 0.000 description 4
- 210000004247 hand Anatomy 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010062713 Haemorrhagic diathesis Diseases 0.000 description 1
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 208000031169 hemorrhagic disease Diseases 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a convenient medical positive-pressure remaining needle which comprises a puncture needle, a catheter, an extension tube, an infusion tube line and a water stop. The water stop comprises a water stop body, an extension-tube passage, a wheel shaft groove and a toothed pulley, the extension-tube passage is arranged in the water stop body and used for accommodating one section of the extension tube, a plurality of protruding teeth arranged on the circumferential surface of the toothed pulley and a wheel shaft extending along an axis of the protruding teeth are arranged on the toothed pulley, the wheel shaft groove is arranged in the water stop body along the length direction of the extension-tube passage, and the wheel shaft of the toothed pulley is mounted in the wheel shaft groove and can move along the wheel shaft groove back and forth. The water stop is structurally characterized in that with forward movement of the wheel shaft of the toothed pulley in the wheel shaft groove, the distance between the wheel shaft of the toothed pulley and the extension tube in the extension-tube passage gets shorter, till the protruding teeth of the toothed pulley are completely pressed against a section of the extension tube located in the extension-tube passage. The convenient medical positive-pressure remaining needle has the advantages of good tube-sealing effect, convenience and rapidness in operation, good remaining effect, good security and the like.
Description
Technical field
The present invention relates to the medical remaining needle technical field, specifically, relate to a kind of medical positive pressure remaining needle of simple operation.
Background technology
At present, medical remaining needle (also referred to as venous detaining needle or title venous cannula pin) is the common equipment of infusion treatment.The core building block of conventional medical remaining needle comprises the conduit that can be retained in endovascular softness, and stainless guiding puncture nook closing member.During use, conduit is punctured into together with nook closing member in blood vessel, after the whole intravasations of conduit, withdraw out nook closing member, thereby only soft catheter retaining is carried out in blood vessel to infusion treatment.
For example, Fig. 1 shows a kind of medical remaining needle structural representation commonly used in prior art.As shown in Figure 1, in prior art, typical medical remaining needle comprises calparine cap 1, threeway 2, extension tube 3, tongs 4, batching pig 5, needle handle 6, conduit 7, puncture needle 8 and transparent threeway 9.Wherein, threeway 2 is communicated with the rear end of extension tube 3 and calparine cap 1, conduit 7 is sleeved on outside puncture needle 8, stretch out from the front end of conduit 7 at the tip of puncture needle 8, the rear end of puncture needle 8 is provided with needle handle 6, the first end of transparent threeway 9 is communicated with the rear end of conduit 7, and the second end of transparent threeway 9 is communicated with the front end of extension tube 3, and the 3rd end of transparent threeway 9 is sealed by batching pig 5.
Yet, for the medical remaining needle of Fig. 1, because need being squeezed to the tongs taper end by extension tube with finger when the tube sealing, tongs 4 clamps, can form negative pressure in tube chamber after loosing one's grip, easily cause blood reflux to flow to into conduit, form the sludged blood blocking pipe, can not reuse, when remaining needle reuses, sludged blood can be transfused to patient's vein even, thereby causes danger.In addition, because tongs 4 must be promoted extension tube according to the maneuver both hands of " moving back while pushing away; band liquid pulls out pin ", " both hands fall eight; the finger tip pressurization " when the clamp, as reaching good positive pressure tube sealing effect, must carry out in strict accordance with requiring by need, complex operation, can not guarantee good malleation effect, and the fine degree of operation is had relatively high expectations.
Therefore, need the medical remaining needle of a kind of safety and simple operation badly.
Summary of the invention
One or more in the prior art above shortcomings, the object of the present invention is to provide the medical remaining needle of the good and simple operation of a kind of safety.
The invention provides a kind of medical convenient positive pressure remaining needle.Described medical convenient positive pressure remaining needle comprises puncture needle, conduit, extension tube and infusion pipeline, sheathed catheter is contained in outside puncture needle, stretch out from the front end of conduit at the tip of puncture needle, puncture needle can penetrate vein by guide catheter, conduit can be retained in intravenous, extension tube is communicated with conduit with infusion pipeline, and described medical convenient positive pressure remaining needle also comprises water-stop, described water-stop comprises body, be arranged in body and for holding the extension tube passage of a section of extension tube, take turns axial trough and the tooth pulley is arranged, described have the tooth pulley to have to be arranged on a plurality of projecting teeths on its periphery and along the wheel shaft of Axis Extension wherein, the wheel axial trough is arranged in body along the length direction of extension tube passage, there is the wheel shaft of tooth pulley be arranged in the wheel axial trough and can move forward and backward along the wheel axial trough, and the structure of water-stop be set to along with the wheel shaft that the tooth pulley is arranged the wheel axial trough in to front movement, there is the wheel shaft of tooth pulley less with the distance of the extension tube that is positioned at the extension tube passage, until there is the projecting teeth of tooth pulley to be pressed on fully on the cross section of the extension tube that is positioned at the extension tube passage.
In an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention, described medical convenient positive pressure remaining needle also can comprise extension tube, transparent threeway, needle handle and batching pig, described infusion pipeline can comprise calparine cap and threeway, and threeway is communicated with the rear end of extension tube and calparine cap, the rear end of puncture needle is connected with needle handle, the first end of transparent threeway is communicated with the rear end of conduit, and the second end of transparent threeway is communicated with the front end of extension tube, and the 3rd end of transparent threeway is sealed by batching pig.
In an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention, the front end of described extension tube passage can be provided with a plurality of teeth groove that coordinate with the projecting teeth that the tooth pulley is arranged.
In an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention, the bore of described extension tube passage can be equal to or greater than the external diameter of extension tube.
In an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention, described a plurality of projecting teeths can be arranged on the periphery of tooth pulley equably along the wheel direction of principal axis that the tooth pulley is arranged.
Compared with prior art, the beneficial effect of medical convenient positive pressure remaining needle of the present invention comprises: tube sealing is respond well, simple operation, indwelling is respond well and safety is good etc.
The accompanying drawing explanation
By the description of carrying out below in conjunction with accompanying drawing, above and other purpose of the present invention and characteristics will become apparent, wherein:
Fig. 1 shows a kind of medical remaining needle structural representation commonly used in prior art;
Fig. 2 shows the structural representation according to an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention;
Fig. 3 A shows the schematic side view of the water-stop in Fig. 2;
Fig. 3 B shows the schematic top plan view of the water-stop in Fig. 2;
Fig. 3 C shows the schematic diagram of an end of the water-stop in Fig. 2;
Fig. 3 D shows the schematic diagram of the other end of the water-stop in Fig. 2.
Description of reference numerals is as follows:
1-calparine cap, 2-threeway, 3-extension tube, 4-tongs, 5-batching pig, 6-needle handle, 7-conduit, 8-puncture needle and 9;
11-calparine cap, 12-threeway, 13-extension tube, 14-water-stop, 15-batching pig, 16-needle handle, 17-conduit, 18-puncture needle, the transparent threeway of 19-, 14a-body, 14b-have tooth pulley, 14c-teeth groove, 14d-to take turns axial trough, 14e-extension tube passage and 14f-wheel shaft.
The specific embodiment
Hereinafter, describe with reference to the accompanying drawings an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention in detail.
Fig. 2 shows the structural representation according to an exemplary embodiment of medical convenient positive pressure remaining needle of the present invention.Fig. 3 A shows the schematic side view of the water-stop in Fig. 2.Fig. 3 B shows the schematic top plan view of the water-stop in Fig. 2.Fig. 3 C shows the schematic diagram of an end (also can be described as front end or the little head end of water-stop body) of the water-stop in Fig. 2.Fig. 3 D shows the schematic diagram of the other end (also can be described as rear end or the stub end of water-stop body) of the water-stop in Fig. 2.
As shown in Figure 2, in one exemplary embodiment of the present invention, medical convenient positive pressure remaining needle for example comprises calparine cap 11, threeway 12, extension tube 13, transparent threeway 19, conduit 17, puncture needle 18, needle handle 16, batching pig 15(, white batching pig) and water-stop 14.
Wherein, threeway is communicated with the rear end of extension tube and calparine cap, sheathed catheter is contained in outside puncture needle, stretch out from the front end of conduit at the tip of puncture needle, the rear end of puncture needle is provided with needle handle, the first end of transparent threeway is communicated with the rear end of conduit, and the second end of transparent threeway is communicated with the front end of extension tube, and the 3rd end of transparent threeway is sealed by batching pig.
As shown in Fig. 2 and Fig. 3 A to 3D, water-stop comprises body 14a, be arranged in body 14a and for the extension tube passage 14e of a section, the wheel axial trough 14d that hold extension tube 13 and tooth pulley 14b is arranged.Wherein, there is the tooth pulley to have to be arranged on a plurality of projecting teeths on its periphery and along the wheel shaft 14f of Axis Extension wherein, the wheel axial trough is arranged in body along the length direction of extension tube passage, there is the wheel shaft of tooth pulley be arranged in the wheel axial trough and can move forward and backward along the wheel axial trough, and the structure of water-stop be set to along with the wheel shaft that the tooth pulley is arranged the wheel axial trough in to front movement (, mobile to the body upper end (being also that end shown in Fig. 3 C) of the water-stop shown in Fig. 3 A from the lower end (being that end shown in Fig. 3 D) of the body of the water-stop shown in Fig. 3 A), there is the wheel shaft of tooth pulley less with the distance of the extension tube that is positioned at the extension tube passage, until there is the projecting teeth of tooth pulley to be pressed on fully on the cross section of the extension tube that is positioned at the extension tube passage, so both can stop the medicinal liquid in extension tube to flow, also the medicinal liquid that originally was arranged in that end extension tube of extension tube passage can be carried to vein, thereby can effectively prevent that blood backflow in vein is to remaining needle.
As shown in Figure 3 B, the front end of extension tube passage can be provided with a plurality of (for example, can be 4～5) the teeth groove 14c coordinated with the projecting teeth that the tooth pulley is arranged.Can realize better the prevention effect to liquid stream in extension tube like this.
In addition, the bore of extension tube passage can equal or be slightly larger than the external diameter of extension tube.There is the direction that a plurality of projecting teeths on the outer circumference surface of tooth pulley can be parallel along the wheel direction of principal axis with the tooth pulley is arranged to be arranged on equably on the periphery of tooth pulley.
For example, at the cross sectional dimensions of extension tube (, external diameter) be in the situation of 3mm, the relative dimensions of water-stop can be: the length of body is 16～20mm, the height of the stub end of body is 10～12mm, the height of the little head end of body is 7～9mm, and the diameter that the tooth pulley is arranged is 5～8mm, and the width of extension tube passage can be 3～4mm.Yet the size of water-stop of the present invention is not limited to this.
Compared with prior art, the beneficial effect of medical convenient positive pressure remaining needle of the present invention comprises following aspect:
1, wheeled water-stop clamp, strengthen the tube sealing effect.Common chip tongs need be squeezed to the tongs taper end by extension tube with finger and clamp when tube sealing, can in tube chamber, form negative pressure after loosing one's grip, easily cause blood reflux stream, and during the wheeled water-stop clamp that the convenient positive pressure remaining needle of Dispoable medical carries, only pulley need to be rolled to clamp to nearly heart direction and get final product, can not contact extension tube, a small amount of medicinal liquid can also be advanced to blood vessel simultaneously, form stable malleation in tube chamber, effectively avoided blood reflux stream, strengthened the tube sealing effect, clinical manipulation is convenient and swift.For example, use medical convenient positive pressure remaining needle of the present invention in the situation that correct, its sustainable use a couple of days.
2, singlehanded tube sealing, simplify procedures.Common chip tongs must be promoted extension tube according to the maneuver both hands of " moving back while pushing away; band liquid pulls out pin ", " both hands fall eight; the finger tip pressurization " when clamp, as reaching good positive pressure tube sealing effect, must carry out in strict accordance with requiring by need, complex operation, can not guarantee good malleation effect, and the fine degree of operation is had relatively high expectations.And the operation of the wheeled water-stop that the convenient positive pressure remaining needle of Dispoable medical carries all only needs singlehanded thumb forefinger to complete, without any operation technique requirement, simplified operation sequence.
3, improve the tube sealing operating efficiency.Common remaining needle is when tube sealing operates, because of complex operation step, and can not guarantee good malleation effect, efficiency is lower, and the time of using the convenient positive pressure remaining needle of Dispoable medical to carry out the more common pin tube sealing saving 2/3rds of tube sealing operation, quick and raising tube sealing operating efficiency.
4, good indwelling effect.On the wheeled water-stop pulley that the convenient positive pressure remaining needle of Dispoable medical carries, gear is arranged, corresponding gear is also arranged in race, can make wheel and groove fluid-tight engagement, extension tube is firmly pressed from both sides and closed, guaranteed good indwelling effect.
5, the safety of protection user.Because wheeled water-stop clamp has guaranteed intraluminal steady positive pressure, so infusion-completed can use normal saline to substitute the heparin solution tube sealing, reduces high-risk bleeding tendency patient's risk.
Although the above has described the present invention with exemplary embodiment by reference to the accompanying drawings, those of ordinary skills should be clear, in the situation that do not break away from the spirit and scope of claim, can carry out various modifications to above-described embodiment.
Claims (5)
1. a medical convenient positive pressure remaining needle, described medical convenient positive pressure remaining needle comprises puncture needle, conduit, extension tube and infusion pipeline, sheathed catheter is contained in outside puncture needle, stretch out from the front end of conduit at the tip of puncture needle, puncture needle can penetrate vein by guide catheter, conduit can be retained in intravenous, extension tube is communicated with conduit with infusion pipeline, it is characterized in that, described medical convenient positive pressure remaining needle also comprises water-stop, described water-stop comprises body, be arranged in body and for holding the extension tube passage of a section of extension tube, take turns axial trough and the tooth pulley is arranged, described have the tooth pulley to have to be arranged on a plurality of projecting teeths on its periphery and along the wheel shaft of Axis Extension wherein, the wheel axial trough is arranged in body along the length direction of extension tube passage, there is the wheel shaft of tooth pulley be arranged in the wheel axial trough and can move forward and backward along the wheel axial trough, and the structure of water-stop be set to along with the wheel shaft that the tooth pulley is arranged the wheel axial trough in to front movement, there is the wheel shaft of tooth pulley less with the distance of the extension tube that is positioned at the extension tube passage, until there is the projecting teeth of tooth pulley to be pressed on fully on the cross section of the extension tube that is positioned at the extension tube passage.
2. medical convenient positive pressure remaining needle according to claim 1, it is characterized in that, described medical convenient positive pressure remaining needle also comprises extension tube, transparent threeway, needle handle and batching pig, described infusion pipeline comprises calparine cap and threeway, and threeway is communicated with the rear end of extension tube and calparine cap, and the rear end of puncture needle is connected with needle handle, and the first end of transparent threeway is communicated with the rear end of conduit, the second end of transparent threeway is communicated with the front end of extension tube, and the 3rd end of transparent threeway is sealed by batching pig.
3. medical convenient positive pressure remaining needle according to claim 1 and 2, is characterized in that, the front end of described extension tube passage is provided with a plurality of teeth groove that coordinate with the projecting teeth that the tooth pulley is arranged.
4. medical convenient positive pressure remaining needle according to claim 1 and 2, is characterized in that, the bore of described extension tube passage is equal to or greater than the external diameter of extension tube.
5. medical convenient positive pressure remaining needle according to claim 1 and 2, is characterized in that, described a plurality of projecting teeths are along there being the wheel direction of principal axis of tooth pulley to be arranged on equably on the periphery of tooth pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420933.1A CN103480060B (en) | 2013-09-16 | 2013-09-16 | A kind of medical convenient positive pressure remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420933.1A CN103480060B (en) | 2013-09-16 | 2013-09-16 | A kind of medical convenient positive pressure remaining needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103480060A true CN103480060A (en) | 2014-01-01 |
| CN103480060B CN103480060B (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420933.1A Expired - Fee Related CN103480060B (en) | 2013-09-16 | 2013-09-16 | A kind of medical convenient positive pressure remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103480060B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056341A (en) * | 2015-07-08 | 2015-11-18 | 上海正邦医疗科技有限公司 | Remaining needle capable of providing positive pressure continuously and application method thereof |
| CN105854125A (en) * | 2016-04-05 | 2016-08-17 | 欧阳小青 | Positive-pressure liquid stopping clamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524310U (en) * | 2009-11-12 | 2010-07-14 | 王文刚 | Transfusion flow regulator |
| CN201783060U (en) * | 2010-09-13 | 2011-04-06 | 江西洪达医疗器械集团有限公司 | Venous indwelling needle with needle-free positive-pressure joint |
| CN201930328U (en) * | 2011-01-20 | 2011-08-17 | 孙玉峰 | Subcutaneous indwelling needle |
| CN202699762U (en) * | 2012-06-19 | 2013-01-30 | 江西洪达医疗器械集团有限公司 | Puncture-preventing vein indwelling needle |
| CN203556007U (en) * | 2013-09-16 | 2014-04-23 | 张丽君 | Medical positive pressure remaining needle |
-
2013
- 2013-09-16 CN CN201310420933.1A patent/CN103480060B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524310U (en) * | 2009-11-12 | 2010-07-14 | 王文刚 | Transfusion flow regulator |
| CN201783060U (en) * | 2010-09-13 | 2011-04-06 | 江西洪达医疗器械集团有限公司 | Venous indwelling needle with needle-free positive-pressure joint |
| CN201930328U (en) * | 2011-01-20 | 2011-08-17 | 孙玉峰 | Subcutaneous indwelling needle |
| CN202699762U (en) * | 2012-06-19 | 2013-01-30 | 江西洪达医疗器械集团有限公司 | Puncture-preventing vein indwelling needle |
| CN203556007U (en) * | 2013-09-16 | 2014-04-23 | 张丽君 | Medical positive pressure remaining needle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105056341A (en) * | 2015-07-08 | 2015-11-18 | 上海正邦医疗科技有限公司 | Remaining needle capable of providing positive pressure continuously and application method thereof |
| CN105056341B (en) * | 2015-07-08 | 2018-02-23 | 上海正邦医疗科技有限公司 | A kind of remaining needle that continuous positive pressure is provided |
| CN105854125A (en) * | 2016-04-05 | 2016-08-17 | 欧阳小青 | Positive-pressure liquid stopping clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103480060B (en) | 2016-09-28 |
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