CN2516098Y - Schbier disposable safety automatic blood taking needle - Google Patents
Schbier disposable safety automatic blood taking needle Download PDFInfo
- Publication number
- CN2516098Y CN2516098Y CN 01266579 CN01266579U CN2516098Y CN 2516098 Y CN2516098 Y CN 2516098Y CN 01266579 CN01266579 CN 01266579 CN 01266579 U CN01266579 U CN 01266579U CN 2516098 Y CN2516098 Y CN 2516098Y
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- sliding sleeve
- needle
- blood taking
- stack shell
- taking needle
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Abstract
Disclosed is a SPR one-off safe and automatic blood taking needle which comprises a cylindrical housing, a needle core, a spring and a sliding bush. Wherein one end of the housing is closed, the other end of the housing is open, and two elastic arms are extended from the closed end to the open end ; the needle core is positioned between the two elastic arms; two cliphooks are respectively arranged inward on the ends of the two elastic arms in symmetry; a cliphook is arranged on a needle handle; the spring is arranged between the needle handle and the closed end; the sliding bush is arranged in the housing, one end of the sliding bush extends out of the open end of the housing, and the other end of the sliding bush extends to the bottom of the elastic arm to force the ends of the elastic arms to separate towards two sides through an inclined plane. The blood taking needle is characterized in that an adjusting head is arranged on the sliding bush, the front part of the adjusting head is a face with a needle outlet hole and the back part is the cylindrical housing body which is sleeved with the sliding bush and connected with a rotary positioning structure through a spiral structure. When the adjusting head is turned towards one direction, the adjusting head is forced by the rotary positioning structure to intermittently rotate and make clatters, and then the needle outlet hole is forced by the spiral structure to move along the axial direction for adjusting the exposure length of the needle point. The proposal has skillful design and definite positioning, solving the shoot deepness adjustment problem of the mini blood taking needle.
Description
Technical field
This utility model relates to a kind of medical blood-sampling needle device, particularly a kind of " mini " disposable safe automatic blood-taking needle that carries ejection structure.
Background technology
" mini " blood taking needle is as a kind of new type of safe instrument of taking a blood sample automatically, and, safety small and exquisite, convenient, fast with it is the favor that characteristic is subjected to medical personnel and patient very much.This class blood taking needle carries ejection structure, and volume is little, compact conformation, and overall time uses safe and convenient, therefore has stronger market development potentiality.
The form of " mini " blood taking needle is various, but this utility model at be the improvement that a kind of disposable safe blood taking needle of occurring on the American market is done.This blood taking needle has a cylindrical outer casing, the sealing of one end, the other end is uncovered structure, two elastic arms are extended towards uncovered direction in the bottom of blind end, blood taking needle is between two elastic arms, two elastic arms are not held and inwardly are arranged with grab, needle handle outwards is provided with grab on corresponding side surface, be provided with spring between needle handle and the blind end, also be provided with a sliding sleeve in shell uncovered, an end of sliding sleeve stretches out from uncovered, external part has a needle outlet, the other end of sliding sleeve extends to the not end of elastic arm, and by the inclined-plane the not end of elastic arm is declined to both sides, and the opening end of shell puts a block.As long as pull out block during use, pinch shell with finger and the external part of sliding sleeve is aimed at the direct pressing of blood sampling site get final product.This shows that this blood taking needle operation only needs two actions, use most convenient (general three actions of " mini " blood taking needle action need) by contrast.But this blood taking needle is the same with other " mini " blood taking needle, all has open defect aspect depth of needling, and promptly the depth of needling weighing apparatus is fixed, can't regulate the blood sampling degree of depth.Its main cause is: " mini " blood taking needle is subjected to the restriction of himself structure and characteristics, is difficult to take into account the depth adjustment function in design.In the practice,, existing structure have to be made series of products by different depth of needling requirements, such as the product of 4 kinds of different shooting degree of depth in order to remedy this defective.But do like this and can bring problem on the other hand, promptly the technology difficulty of Zeng Jiaing makes manufacturing process complicated.
This utility model is designed a kind of adjustable structure that can satisfy the different blood sampling degree of depth, and is applied on the above-mentioned blood taking needle, to overcome the deficiencies in the prior art from regulating the angle of the blood sampling degree of depth.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of Bill's disposable safe automatic blood-taking needle of executing comprises:
A cylindrical outer casing, the end sealing of cylindrical outer casing, the other end opens wide, and blind end extends two elastic arms towards open end;
A nook closing member, this nook closing member are between two elastic arms, and two elastic arms are not held and inwardly are arranged with grab, and needle handle outwards is provided with grab on corresponding side surface;
A spring, this spring are located between needle handle and the blind end;
A sliding sleeve, this sliding sleeve is located in shell uncovered, and sliding sleeve one end stretches out from uncovered, and the other end extends to the not end of elastic arm, the contact site of sliding sleeve and elastic arm has at least one to be inclined-plane or cone structure, and the direction of the inclined-plane or the conical surface forces the not end of elastic arm to separate to both sides;
The external part of sliding sleeve is provided with one and regulates head, this adjusting front portion is an end face, end face central authorities are provided with needle outlet, the rear portion is a stack shell, stack shell and sliding sleeve socket, be connected with a rotary positioning structure by a helical structure between stack shell and the sliding sleeve, constitute with this and can intermittently rotate the localized structure that moves axially.
Be explained as follows inside the Pass the having of technique scheme:
1, described " nook closing member " is meant the member of band needle body, comprises needle handle and the needle body that is located on the needle handle.
2, described " contact site of sliding sleeve and elastic arm have at least one for inclined-plane or cone structure " its connotation comprises three kinds of situations, the one, and sliding sleeve is provided with the inclined-plane or the conical surface, and sliding sleeve utilizes the inclined-plane or the conical surface that elastic arm is not held to both sides when elastic arm slides to separate; The 2nd, elastic arm is not held and is provided with the inclined-plane or the conical surface, and sliding sleeve is not held elastic arm to both sides by the inclined-plane or the conical surface when elastic arm slides and separated; The 3rd, sliding sleeve and elastic arm are not held and are equipped with the inclined-plane or the conical surface, and sliding sleeve by the cooperation of two inclined-planes or the conical surface, finally forces elastic arm not held to both sides and separates when elastic arm slides.
3, described " forcing the not end of elastic arm to separate to both sides " is meant and forces the outside of not holding to both sides to be separated, and only in this way just can make grab free the release nook closing member.
4, described " stack shell and sliding sleeve socket " two kinds of situations are arranged, the one, sliding sleeve is an overcoat, stack shell is interior cover; The 2nd, sliding sleeve is interior cover, and stack shell is an overcoat.But first kind of case structure is simpler.
5, described " sliding sleeve is located in shell uncovered " its contain and mean: the one, sliding sleeve is as interior cover, shell is as the mutual socket of overcoat; The 2nd, the sliding sleeve opposite shell can only be in axial sliding, and can not rotate relatively, otherwise the rotation of adjusting head is regulated and can't be realized.In order to realize endwisely slipping, can adopt forms such as splined shaft, keyway and noncircular cross section.
In the technique scheme, in order to play safety and protective effect, the opening end of described shell can be provided with a block, and block is enclosed within outside shell uncovered.
In the technique scheme, described helical structure is a kind of axially movable structure that produces simultaneously in relative rotation, specifically comprises following two kinds of variation schemes:
1, helical structure is cooperated with projection by helicla flute and constitutes, and in helicla flute and the projection, one is located on the sliding sleeve, and another is located on the stack shell.For the simplified structure helicla flute can be substituted with one section oblique groove of offering, because like this can simplified manufacturing technique.Helicla flute and projection are provided with the position in this programme two kinds of combinations, and the one, helicla flute is located on the stack shell of regulating head, and the projection correspondence is located on the sliding sleeve; The 2nd, helicla flute is located on the sliding sleeve, and protruding correspondence is located on the stack shell.
2, helical structure is cooperated with external screw thread by female thread and constitutes, and in female thread and the external screw thread, one is located on the sliding sleeve, and another is located on the stack shell.Here it is emphasized which member female thread and external screw thread are located on, with this member be that interior cover or overcoat have substantial connection, in other words, female thread always is provided in a side of on the outer casing component, and external screw thread always be provided in a side of in the cover member on.If sliding sleeve is an overcoat, stack shell is interior cover, and female thread should be located on the sliding sleeve so, and external screw thread should be located on the stack shell, and is as the same on the contrary.
The simple deformation of having done on the basis of above two kinds of schemes is also included within the claimed scope of this utility model.
In the technique scheme, described rotary positioning structure is that the adjusting head rotates and move axially a kind of gear structure in the process, specifically comprises following two kinds of variation schemes:
1, rotary positioning structure is cooperated with projection by the groove that is provided with along circumferentially being separated by and constituting, and among both, one is located on the sliding sleeve groove with protruding, and another is located on the stack shell.There are two kinds of combinations at the position that is provided with of groove and projection in this programme, and the one, groove is located on the sliding sleeve, and protruding correspondence is located on the stack shell; The 2nd, groove is located on the stack shell, and protruding correspondence is located on the sliding sleeve.
2, rotary positioning structure is cooperated and is constituted by regular polygon profile and projection, and among both, one is located on the sliding sleeve regular polygon profile with protruding, and another is located on the stack shell.Described regular polygon profile comprises regular polygon outer margin contour and two kinds of situations of inner edge profile, when regular polygon adopts the inner edge profile to cooperate with projection, it should be located on the outer casing component, when regular polygon adopts outer margin contour to cooperate with projection, overlap on the member in it should being located at.
In order to make rotary positioning structure better effects if in the use, can be on peripheral sliding sleeve of projection or stack shell carving empty one section around breach, making protruding set position is the flexure strip structure.
This utility model operation principle is: utilize the helical structure of regulating between head and the sliding sleeve, make the relative nook closing member of needle outlet produce axial displacement by rotating the adjusting head, thereby regulate the shooting degree of depth.And rotary positioning structure can be distinguished different gears, makes to rotate to regulate to be intermittently state, sends the stridulation of click click simultaneously, so that user is better grasped the adjusting degree of depth.Needle handle was locked on the elastic arm by grab before used at the blood taking needle end, nook closing member is in battery, as long as pull out block during use, pinching shell with finger will regulate needle outlet end on the head and aim at the direct pressing of blood sampling site and go down, slide over external force this moment and promote to slide on the shell inner cavity of lower edge, does not push holding to the outside on both sides of elastic arm open by ramp effect the upper end of sliding sleeve, so the grab of locking nook closing member is freed, spring promotes nook closing member and shoots downwards, and needle point passes needle outlet and stabs blood sampling site.After nook closing member was shot the lower end extreme position, spring drove nook closing member again and is retracted in the shell.Here require emphasis, the retraction of nook closing member under spring drives should meet two requirements, and the one, retraction back needle point can not expose from needle outlet, otherwise very dangerous; The 2nd, retraction back nook closing member loses the possibility of emission again, just can not return to original battery, could guarantee disposable operating characteristic preferably like this.
This utility model advantage and effect are:
1, overcomes the restriction of " mini " blood taking needle self structure and characteristics, in design concept, well taken into account the depth adjustment function.Solved the technical barrier that " mini " blood taking needle in the past stays, made this " mini " blood taking needle more perfect on function, use and the structure.
2, this programme is simple in structure, design concept is dexterous, and the adjusting degree of depth is reliable, and gear is clear and definite, is very suitable for " mini " blood taking needle structure.
3, after this programme is applied to above-mentioned blood taking needle, do not need existing structure is made series of products by different depth of needling requirements, such as the product of 4 kinds of different shooting degree of depth, as long as just can adapt to the requirement of the different shooting degree of depth by regulating.
4, the application of this programme has solved this in the past product because of the difference shooting degree of depth requires the complicated of the technology difficulty brought and manufacturing, makes manufacturing simpler.
Description of drawings
Accompanying drawing 1 is this utility model example structure, duty before use;
Accompanying drawing 2 is this utility model example structure, the duty after use;
Accompanying drawing 3 is the vertical view of Fig. 1 or Fig. 2;
Accompanying drawing 4 is regulated the header structure enlarged drawing for this utility model;
Accompanying drawing 5 is the vertical view of Fig. 4;
Accompanying drawing 6 is this utility model shift sleeve structure enlarged drawing;
Accompanying drawing 7 is the vertical view of Fig. 6.
In the above accompanying drawing: 1, shell; 2, nook closing member; 3, spring; 4, sliding sleeve; 5, regulate head; 6, block; 7, end cap; 8, elastic arm; 9, grab; 10, needle handle; 11, grab; 12, spring base; 13, end face; 14, needle outlet; 15, stack shell; 16, helicla flute; 17, projection; 18, groove; 19, projection; 20, breach.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment: shown in accompanying drawing 1～accompanying drawing 7, a kind of Bill's disposable safe automatic blood-taking needle of executing is by cylindrical outer casing 1, nook closing member 2, spring 3, sliding sleeve 4, regulate 5 and block a shot and 6 form.One end of cylindrical outer casing 1 seals with end cap 7, the other end opens wide, and end cap 7 extends two elastic arms 8 towards the uncovered direction of shell 1, and nook closing member 2 is between two elastic arms 8, two elastic arms 8 are not held and inwardly are arranged with grab 9, and needle handle 10 outwards is provided with two grabs 11 on corresponding side surface.Nook closing member 2 is made of needle handle 10 and needle body.Spring 3 is located between needle handle 10 and the end cap 7, specifically is that spring 3 one ends are stuck on the spring base 12 of end cap 7, and the other end is enclosed within on the needle handle 10.Sliding sleeve 4 is located in shell 1 uncovered, vertically be provided with keyway arrangements between the inner edge of the outer rim of sliding sleeve 4 and shell 1, sliding sleeve 4 opposite shell 1 can only be in axial sliding like this, can not rotate relatively, sliding sleeve 4 one ends stretch out from uncovered, the other end is at the not end that extends to elastic arm 8 along shell 1 chamber wall, sliding sleeve 4 heads are provided with one section conical surface, elastic arm 8 is not held yet, and correspondence is provided with the conical surface or inclined-plane, the conical surface or inclined-plane that sliding sleeve 4 is not held by the conical surface roof pressure elastic arm 8 on the sliding sleeve 4 when elastic arm 8 slides force elastic arm 8 not held to the outside, both sides and separate.Sheathed adjusting 5 on the external part of sliding sleeve 4, this adjusting 5 front portion are an end face 13, end face 13 central authorities are provided with needle outlet 14, the rear portion is a stack shell 15, stack shell 15 is as interior cover and sliding sleeve 4 sockets, be connected with a rotary positioning structure by a helical structure between stack shell 15 and the sliding sleeve 4, constitute with this and can intermittently rotate the localized structure that moves axially.The opening end of described shell 1 is provided with a block 6, and block 6 is enclosed within outside shell 1 uncovered.
Above-mentioned helical structure is cooperated with projection 17 by two pairs of helicla flutes 16 and constitutes, two pairs of helicla flutes 16 and projection 17 front and back symmetric arrangement (can only see a helicla flute 16 of front in the accompanying drawing 4), in actual the manufacturing for the simplified structure helicla flute substitutes with one section oblique groove of offering, because like this can simplified manufacturing technique.Helicla flute 16 is located to be regulated on 5 the stack shell 15, and projection 17 correspondences are located on the sliding sleeve 4.Above-mentioned rotary positioning structure is cooperated with two projectioies 19 by nine grooves 18 that are provided with along circumferentially being separated by and constitutes, and groove 18 is located on sliding sleeve 4 inwalls, and protruding 19 symmetries are located on the stack shell 15.In order to make rotary positioning structure better effects if in the use, empty one section " L " v notch v 20 of carving on the stack shell 15 of protruding 19 peripheries makes projection 19 set positions become the flexure strip structure.
Claims (7)
1, a kind of Bill's disposable safe automatic blood-taking needle of executing comprises:
A cylindrical outer casing [1], the end sealing of cylindrical outer casing [1], the other end opens wide, and blind end extends two elastic arms [8] towards open end;
A nook closing member [2], this nook closing member [2] are positioned between two elastic arms [8], and two elastic arms [8] are not held and inwardly are arranged with grab [9], and needle handle [10] outwards is provided with grab [11] on corresponding side surface;
A spring [3], this spring [3] are located between needle handle [10] and the blind end;
A sliding sleeve [4], this sliding sleeve [4] is located in shell [1] uncovered, sliding sleeve [4] one ends stretch out from uncovered, the other end extends to elastic arm [8] and does not hold, sliding sleeve [4] has at least one to be inclined-plane or cone structure with the contact site of elastic arm [8], and the direction of the inclined-plane or the conical surface forces the not end of elastic arm [8] to separate to both sides;
It is characterized in that:
The external part of sliding sleeve [4] is provided with one and regulates head [5], this adjusting head [5] front portion is an end face [13], end face [13] central authorities are provided with needle outlet [14], the rear portion is stack shell [15], stack shell [15] and sliding sleeve [4] socket, be connected with a rotary positioning structure by a helical structure between stack shell [15] and the sliding sleeve [4], constitute with this and can intermittently rotate the localized structure that moves axially.
2, blood taking needle according to claim 1 is characterized in that: described helical structure cooperates formation by helicla flute [16] with projection [17], and helicla flute [16] and projection [17] are among both, and one is located on the sliding sleeve [4], and another is located on the stack shell [15].
3, blood taking needle according to claim 2 is characterized in that: described helicla flute [16] is oblique one section groove offering.
4, blood taking needle according to claim 1 is characterized in that: described helical structure is cooperated with external screw thread by female thread and constitutes, and in female thread and the external screw thread, one is located on the sliding sleeve, and another is located on the stack shell.
5, blood taking needle according to claim 1, it is characterized in that: described rotary positioning structure cooperates formation by the groove [18] that is provided with along circumferentially being separated by with projection [19], groove [18] and projection [19] are among both, and one is located on the sliding sleeve [4], and another is located on the stack shell [15].
6, blood taking needle according to claim 1 is characterized in that: described rotary positioning structure cooperates formations by the regular polygon profile with projection [19], and regular polygon profile and protruding [19] are among both, and one is located on the sliding sleeve [4], and another is located on the stack shell [15].
7, according to claim 5 or 6 described blood taking needles, it is characterized in that: sliding sleeve [4] that described projection [19] is peripheral or stack shell [15] go up carving empty one section around breach [20], making the set position of projection [19] is the flexure strip structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266579 CN2516098Y (en) | 2001-11-12 | 2001-11-12 | Schbier disposable safety automatic blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01266579 CN2516098Y (en) | 2001-11-12 | 2001-11-12 | Schbier disposable safety automatic blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516098Y true CN2516098Y (en) | 2002-10-16 |
Family
ID=33673225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01266579 Expired - Lifetime CN2516098Y (en) | 2001-11-12 | 2001-11-12 | Schbier disposable safety automatic blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516098Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741767B (en) * | 2003-01-23 | 2010-05-26 | 霍夫曼-拉罗奇有限公司 | Device and method for receiving a body fluid for analysis |
| CN101606843B (en) * | 2009-07-22 | 2010-08-25 | 山东威高集团医用高分子制品股份有限公司 | Safety type blood collecting protecting sleeve |
| CN102451009A (en) * | 2010-10-15 | 2012-05-16 | 旭石墨尼龙株式会社 | Lancet pricking device |
| CN102599919A (en) * | 2012-04-11 | 2012-07-25 | 苏州乔阳医学科技有限公司 | Disposable safe blood taking needle |
| CN103637809A (en) * | 2007-03-07 | 2014-03-19 | 贝克顿·迪金森公司 | Needle assembly and blood collection assembly |
| CN103919562A (en) * | 2014-05-04 | 2014-07-16 | 天津华鸿科技有限公司 | Blood taking needle |
| CN108420444A (en) * | 2018-05-23 | 2018-08-21 | 淮安市天达医疗器械有限公司 | Push type hemostix |
-
2001
- 2001-11-12 CN CN 01266579 patent/CN2516098Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1741767B (en) * | 2003-01-23 | 2010-05-26 | 霍夫曼-拉罗奇有限公司 | Device and method for receiving a body fluid for analysis |
| CN103637809A (en) * | 2007-03-07 | 2014-03-19 | 贝克顿·迪金森公司 | Needle assembly and blood collection assembly |
| CN105455827A (en) * | 2007-03-07 | 2016-04-06 | 贝克顿·迪金森公司 | Safety blood collection assembly with indicator |
| CN103637809B (en) * | 2007-03-07 | 2017-04-12 | 贝克顿·迪金森公司 | Needle assembly and blood collection assembly |
| CN101606843B (en) * | 2009-07-22 | 2010-08-25 | 山东威高集团医用高分子制品股份有限公司 | Safety type blood collecting protecting sleeve |
| CN102451009A (en) * | 2010-10-15 | 2012-05-16 | 旭石墨尼龙株式会社 | Lancet pricking device |
| CN102599919A (en) * | 2012-04-11 | 2012-07-25 | 苏州乔阳医学科技有限公司 | Disposable safe blood taking needle |
| CN103919562A (en) * | 2014-05-04 | 2014-07-16 | 天津华鸿科技有限公司 | Blood taking needle |
| CN103919562B (en) * | 2014-05-04 | 2016-04-20 | 天津华鸿科技有限公司 | A kind of blood taking needle |
| CN108420444A (en) * | 2018-05-23 | 2018-08-21 | 淮安市天达医疗器械有限公司 | Push type hemostix |
| CN108420444B (en) * | 2018-05-23 | 2024-04-16 | 淮安市天达医疗器械有限公司 | Push type hemostix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20111112 Granted publication date: 20021016 |