CN201049106Y - Protective cover for needle - Google Patents
Protective cover for needle Download PDFInfo
- Publication number
- CN201049106Y CN201049106Y CNU200720006737XU CN200720006737U CN201049106Y CN 201049106 Y CN201049106 Y CN 201049106Y CN U200720006737X U CNU200720006737X U CN U200720006737XU CN 200720006737 U CN200720006737 U CN 200720006737U CN 201049106 Y CN201049106 Y CN 201049106Y
- Authority
- CN
- China
- Prior art keywords
- needle
- protective sleeve
- pipe box
- stand
- needle stand
- 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.)
- Expired - Lifetime
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 61
- 230000008602 contraction Effects 0.000 claims abstract description 3
- 230000004888 barrier function Effects 0.000 claims description 16
- 230000006378 damage Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an apparatus for guiding medium into a human body, in particular to a needle protective sleeve which comprises a needle tube and a needle stand, wherein, one end of the needle tube is connected with the needle stand, while the other end is a free end. The utility model is structurally characterized in that the needle protective sleeve also comprises an extension protective sleeve which can extends along the length direction of the needle tube; one end of the extension protective sleeve is connected with the needle stand; the needle tube is positioned inside the core cavity of the protective sleeve; a needle point is exposed outside the protective sleeve in contraction state and is contained inside the core cavity when the protective sleeve is outstretched. The utility model has the advantages that the extension needle protective sleeve provided can draw the needle stand when pulled out from an injected body and drives the protective sleeve to extend till the entire needle tube is covered by the protective sleeve; thus, the needle point is contained inside the protective sleeve when pulled out from the injected body and does not injure people due to being exposed outside; moreover, the utility model which does not pollute the environment has high safety and reliability and ideal practicability.
Description
Technical field
This utility model relates to a kind ofly introduces intravital apparatus with medium, particularly a kind of Needle protective sleeve.
Background technology
Existing needle set comprises needle tubing, needle stand and preceding needle guard, and an end of needle tubing is fixedly connected on the needle stand, and the other end is a free end, is used for puncture, and preceding needle guard and needle stand are discrete and be enclosed within on the needle tubing, in order to coat the use part of needle tubing before use.Use for preventing that the lawless person from reclaiming used needle set, bring harm to society, needle guard must separate discarded with needle tubing in use immediately; Yet needle tubing is after use, and its needle point must expose, and exposed needle point all can be stabbed other people at any time after leaving the human body, and entrained antibacterial or bloodstain on the needle tubing also can cause adverse effect to environment.Even the preceding needle guard cover of reuse this moment contains needle point, needle tubing, yet whole contain the cover process must be after needle point, needle tubing be exposed again row contain the cover operation, can not when leaving the human body, needle point just contain trocar tip, therefore, the needle point, the needle tubing that leave the human body have a bit of exposing the time, and the operation of the slotting preceding needle guard of cover also exists needle point to stab operator's hidden danger.
Invention constitutes
The purpose of this utility model be according to the deficiencies in the prior art part provide a kind of can with leave by the needle point of injecting body contain simultaneously cover wherein, safe and reliable, free of contamination Needle protective sleeve.
This utility model is realized by following approach:
Needle protective sleeve; comprise needle tubing and needle stand; one end of needle tubing is connected with needle stand; the other end is a free end, and its structural feature is, also include a kind of can be along the flexible telescopic protection cover that extends of needle tubing length direction; the one end is connected with needle stand; needle tubing is arranged in the core chamber of protective sleeve, and needle point exposes to the protective sleeve under the contraction state, and the protective sleeve after stretching contains needle point and is enclosed within its core chamber.
Before needle set used, protective sleeve was a compressive state, and after the use, when leaving by injecting body, the stretching needle stand also drives the protective sleeve stretching, all envelopes up to the protected cover of whole needle tubing, thereby prevents that needle point is exposed outside.Like this, needle point can contain cover wherein by protected cover when leaving by injecting body, with regard to not causing injury to personnel because of exposed, does not also pollute the environment, and is therefore safe and reliable, pollution-free, practicality is good.
This utility model can further be specially:
Protective sleeve is made up of a plurality of descending cylindrical members; this a plurality of descending cylindrical members socket in regular turn; and can be trapezoidal flexible state; all has a location structure between every adjacent two cylindrical members; this location structure includes actuator and keeper, lays respectively in the two adjacent cylindrical members.
This is a kind of structure of protective sleeve, and drawing gradually for cylindrical member, the protective sleeve of this kind cylindrical member can have two kinds of selections:
In all cylindrical members, minimum cylindrical member is connected with needle stand, and actuator is positioned on the big relatively tubular structure, and keeper then is positioned on the relatively little cylindrical member.
Like this be configured to anti-tower configuration, along with the stretching of fixture, cylindrical member is descending to be drawn out one by one, in maximum cylindrical member that needle point is submerged.In addition, the structure of protective sleeve can also be:
In all tubular structures, maximum cylindrical member is connected with needle stand, and actuator is positioned on the relatively little cylindrical member, and keeper then is positioned on the big relatively cylindrical member.
This structure is a kind of reverse geometry of said structure, is a kind of tower configuration, and its effect and principle all are the same.With respect to anti-tower configuration, the protective sleeve of tower configuration is more firm, thereby it is also more more convenient to operate, and the protective sleeve of anti-tower configuration is then more flexible.
Also include a kind of barriers, comprise triangle vavle and housing, housing is a kind of cylindrical shape, and triangle vavle then is installed in the housing inner chamber.
Needle set needle tubing before use can pass barriers, and after the use, after protective sleeve coats needle tubing, the triangle vavle in the barriers will change the position, and its mesopore will depart from the normal position, causes the needle point barriers that can't puncture out.
The housing external diameter of barriers is identical with the external diameter of needle stand housing.
When the protective sleeve total head was reduced to the needle stand inner chamber, the housing of barriers kept off outside needle stand, when the stretching protective sleeve, can act on the housing of barriers, thereby drove the stretching of protective sleeve.When the housing external diameter of barriers is identical with the external diameter of needle stand housing, the erection space of whole needle set is dwindled, make easier for installationly, installation cost reduces greatly.
The connected mode of protective sleeve and needle stand can further be specially:
Have a pipe box in the inner chamber of needle stand housing, an end of needle tubing is connected with needle stand by this pipe box, and an end of pipe box is fastenedly connected the end in needle stand housing inner chamber, and the other end cover of pipe box is an end of needle tubing then.
When needle tubing is done the time spent, stress on the needle tubing at first acts on the free end of pipe box, bear the stress that the needle tubing motion is brought by pipe box, because the diameter of section of pipe box is big than needle tubing, can select the strong material of toughness, even therefore pipe box is subjected to big stress also to be not easy to rupture, and is safe and reliable; The degree of freedom of needle tubing just becomes big in addition, uses more flexible.In addition, because the length of needle tubing was shorter, length difference is by the pipe box substituting, the material of needle tubing always needs high-quality, high-tech rigid material to make, its cost is high a lot of more than pipe box, after the part of needle tubing is replaced by pipe box, in the accumulation of amount, can save sizable cost, also saved resource simultaneously.
When protective sleeve is anti-tower configuration:
Minimum cylindrical member is by being connected with needle stand with the pipe box socket.
Like this, with regard to many elongated ends, pipe box just is because being fastenedly connected with needle stand of pipe box so in fact protective sleeve has just had a fixed pivot, can make the extension of protective sleeve and squeeze operation more simple to protective sleeve, flexibly on needle stand.
Pipe box can also further be specially:
The length that needle tubing is socketed in the pipe box is 10%～80% of pipe box length.
The length of pipe box is 50%～120% of needle stand shell length.
Needle tubing is socketed in the length scale in the sleeve pipe, depends on the length of needle tubing self, and needle tubing length is long more, and its length that is socketed in the sleeve pipe should be long more.For medical needle now commonly used, as remaining needle etc., the length that general needle tubing is socketed in the pipe box is 10%～30%.
But the shell length of the length needle stand of pipe box and actual needs and decide generally will be more than 10mm, and for medical needle commonly used now, as remaining needle, its length should be suitable with the needle stand shell length, or longer than needle stand shell length.
In sum; advantage of the present utility model is, a kind of needle set with protective sleeve is provided, and this needle set can be medical needle set; it also can be the needle set of other purposes; this needle set has one can be along the flexible telescopic protective sleeve that extends of needle tubing length direction, and before the use, protective sleeve is a compressive state; after the use; pulling needle stand when leaving by injecting body, and drive the protective sleeve stretching, all envelope up to the protected cover of whole needle tubing.Like this, needle point just can contain cover wherein by protected cover when leaving by injecting body, can not cause injury to personnel because of exposed, does not also pollute the environment, and is therefore safe and reliable, pollution-free, practicality is good.
Description of drawings
Figure 1 shows that the structural representation of this utility model embodiment 1 described Needle protective sleeve;
Figure 2 shows that the structural representation of the described Needle protective sleeve of this utility model most preferred embodiment;
Figure 3 shows that the A portion that Fig. 1 indicates, i.e. the structure for amplifying sketch map of location structure;
The face sketch map is looked in the bottom that Figure 4 shows that the described triangle vavle of this utility model most preferred embodiment.
Below in conjunction with embodiment this utility model is described further.
Specific embodiment
Embodiment 1:
With reference to accompanying drawing 1, Needle protective sleeve includes needle tubing 1, needle stand 2, telescopic protection cover 3, barriers 5 and pipe box 6.One end of needle tubing 1 is connected with needle stand 2 by pipe box 6, and the other end is free end, i.e. needle point; Telescopic protection cover 3 be a kind of can be along the protective sleeve of the flexible extension of needle tubing 1 length direction; form by the cylindrical member that two sectional areas vary in size; has a location structure between the two; this location structure includes actuator 41 and keeper 42; with reference to accompanying drawing 3; actuator 41 is positioned on the big cylindrical member; keeper 42 is positioned on the little cylindrical member; big cylindrical member is connected by above-mentioned location structure with needle stand 2; little cylindrical member one end connects big cylindrical member; the other end then connects barriers 5; barriers 5 comprises triangle vavle 51 and housing 52, and triangle vavle 51 is a kind of movable block of triangle, has a through hole on it; before needle set uses; needle tubing 1 is by this through hole the part needle tubing to be exposed, so that use, this movable block volume is little; be arranged in the inner chamber of housing 52, can be free movable in housing 52 when not being subjected to the needle tubing restriction.Pipe box 6 one ends are fastenedly connected the end in the needle stand 2 housing inner chambers, and the other end then overlaps a then end of needle tubing 1, and the length that needle tubing 1 is plugged in the pipe box 6 is 10% of pipe box 6 length, and the length of pipe box 6 is slightly less than the lateral length of needle stand 2.When protective sleeve 3 compressions, the whole protecting cover all is compressed in the inner chamber of needle stand, and big cylindrical member is introduced into needle stand, secondly is little cylindrical member, and its medium and small cylindrical member is enclosed within on the pipe box 6.
It is same as the prior art that present embodiment is not stated part.
With reference to accompanying drawing 2, Needle protective sleeve includes needle tubing 1, needle stand 2, telescopic protection cover 3, barriers 5 and pipe box 6.Telescopic protection cover 3 is made up of the cylindrical member that two sectional areas vary in size, and has a location structure 4 between the two, and this location structure 4 includes actuator and keeper, and actuator is positioned on the little cylindrical member, and keeper is positioned on the big cylindrical member.Little cylindrical member is connected on the needle stand 2 by pipe box 6, big cylindrical member one end connects little cylindrical member, the other end then connects barriers 5, barriers 5 comprises triangle vavle 51 and housing 52, triangle vavle 51 is a kind of movable block of triangle, has a through hole on it, and this movable block volume is big than embodiment 1, its end angle of three can be tangential on the interior circle of housing 51, with reference to accompanying drawing 4.When protective sleeve 3 compressions, the whole protecting cover all is compressed in the inner chamber of needle stand, and little cylindrical member is introduced into needle stand, secondly is big cylindrical member, and its medium and small cylindrical member is enclosed within on the pipe box 6.
It is identical with embodiment 1 that present embodiment is not stated part.
Claims (10)
1. Needle protective sleeve; comprise needle tubing (1) and needle stand (2); one end of needle tubing (1) is connected with needle stand (2); the other end is a free end, it is characterized in that, also include a kind of can be along the flexible telescopic protection cover (3) that extends of needle tubing (1) length direction; the one end is connected with needle stand (2); needle tubing (1) is arranged in the core chamber of protective sleeve (3), and needle point exposes to the protective sleeve (3) under the contraction state, and the protective sleeve (3) after stretching contains needle point and is enclosed within its core chamber.
2. Needle protective sleeve according to claim 1; it is characterized in that; protective sleeve (3) is made up of a plurality of descending cylindrical members; this a plurality of descending cylindrical members socket in regular turn; and can be trapezoidal flexible state; all have a location structure (4) between every adjacent two cylindrical members, this location structure (4) includes actuator (41) and keeper (42), lays respectively in the two adjacent cylindrical members.
3. Needle protective sleeve according to claim 2; it is characterized in that in all cylindrical members, minimum cylindrical member is connected with needle stand (2); actuator (41) is positioned on the big relatively tubular structure, and keeper (42) then is positioned on the relatively little cylindrical member.
4. Needle protective sleeve according to claim 2; it is characterized in that in all tubular structures, maximum cylindrical member is connected with needle stand (2); actuator (41) is positioned on the relatively little cylindrical member, and keeper (42) then is positioned on the big relatively cylindrical member.
5. Needle protective sleeve according to claim 1 is characterized in that, also includes a kind of barriers (5), comprises triangle vavle (51) and housing (52), and housing (52) is a kind of cylindrical shape, and triangle vavle (51) then is installed in housing (1) inner chamber.
6. Needle protective sleeve according to claim 5 is characterized in that, the housing of barriers (52) external diameter is identical with the external diameter of needle stand (2) housing.
7. Needle protective sleeve according to claim 1; it is characterized in that; has a pipe box (6) in the inner chamber of needle stand housing; one end of needle tubing (1) is connected with needle stand (2) by this pipe box (6); one end of pipe box (6) is fastenedly connected the end in needle stand (2) housing inner chamber, and the other end cover of pipe box (6) is an end of needle tubing (1) then.
8. Needle protective sleeve according to claim 1 is characterized in that, minimum cylindrical member is by being connected with needle stand (2) with pipe box (6) socket.
9. Needle protective sleeve according to claim 1 is characterized in that, the length that needle tubing (1) is plugged in the pipe box (6) is 10%～80% of pipe box (6) length.
10. Needle protective sleeve according to claim 1 is characterized in that, the length of pipe box (6) is 50%～120% of needle stand (2) shell length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720006737XU CN201049106Y (en) | 2007-04-10 | 2007-04-10 | Protective cover for needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720006737XU CN201049106Y (en) | 2007-04-10 | 2007-04-10 | Protective cover for needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201049106Y true CN201049106Y (en) | 2008-04-23 |
Family
ID=39335587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720006737XU Expired - Lifetime CN201049106Y (en) | 2007-04-10 | 2007-04-10 | Protective cover for needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201049106Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000370A (en) * | 2010-09-08 | 2011-04-06 | 陈永曦 | Retention needle tube assembly |
| WO2014198077A1 (en) * | 2013-06-14 | 2014-12-18 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
-
2007
- 2007-04-10 CN CNU200720006737XU patent/CN201049106Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102000370A (en) * | 2010-09-08 | 2011-04-06 | 陈永曦 | Retention needle tube assembly |
| CN102000370B (en) * | 2010-09-08 | 2013-03-13 | 福建省百仕韦医用高分子股份有限公司 | Retention needle tube assembly |
| WO2014198077A1 (en) * | 2013-06-14 | 2014-12-18 | 南通恒泰医疗器材有限公司 | Multifunctional indwelling needle |
| AU2013392518B2 (en) * | 2013-06-14 | 2017-08-10 | Nantong Hengtai Medical Apparatus Co., Ltd. | Multifunctional indwelling needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fuzhou Shi Shi Wei medical polymer Co., Ltd. Assignor: Chen Yongxi Contract fulfillment period: 2009.3.20 to 2014.3.20 Contract record no.: 2009350000081 Denomination of utility model: Protective cover for needle Granted publication date: 20080423 License type: Exclusive license Record date: 20090512 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.20 TO 2014.3.20; CHANGE OF CONTRACT Name of requester: FUZHOU BAISHIWEI MEDICAL POLYMER CO., LTD. Effective date: 20090512 |
|
| ASS | Succession or assignment of patent right |
Owner name: FUZHOU BESTWAY MED-MACROMOLECULE CORP. Free format text: FORMER OWNER: CHEN YONGXI Effective date: 20120917 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350003 FUZHOU, FUJIAN PROVINCE TO: 350004 FUZHOU, FUJIAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120917 Address after: Fuzhou City, Fujian province 350004 Industrial Road, Taijiang District No. 193 Baolong city square southwest side Xiaobailou 2 layer 202 Patentee after: Fuzhou Bestway Med-Macromolecule Corp. Address before: Fu Taijiang Village District of Fuzhou City, Fujian province 350003 15 3 Building No. 305 Patentee before: Chen Yongxi |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080423 |
|
| CX01 | Expiry of patent term |