CN2621601Y - Safety blood taking needle with adjutable puncture depth - Google Patents
Safety blood taking needle with adjutable puncture depth Download PDFInfo
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- CN2621601Y CN2621601Y CNU032205171U CN03220517U CN2621601Y CN 2621601 Y CN2621601 Y CN 2621601Y CN U032205171 U CNU032205171 U CN U032205171U CN 03220517 U CN03220517 U CN 03220517U CN 2621601 Y CN2621601 Y CN 2621601Y
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- head
- housing
- blood taking
- projection
- depth
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15142—Devices intended for single use, i.e. disposable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150175—Adjustment of penetration depth
- A61B5/150183—Depth adjustment mechanism using end caps mounted at the distal end of the sampling device, i.e. the end-caps are adjustably positioned relative to the piercing device housing for example by rotating or screwing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150259—Improved gripping, e.g. with high friction pattern or projections on the housing surface or an ergonometric shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150503—Single-ended needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
- A61B5/150549—Protectors removed by rotational movement, e.g. torsion or screwing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/15058—Joining techniques used for protective means
- A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
- A61B5/150694—Procedure for removing protection means at the time of piercing
- A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15111—Semi-automatically triggered, e.g. at the end of the cocking procedure, for instance by biasing the main drive spring or when reaching sufficient contact pressure, the piercing device is automatically triggered without any deliberate action by the user
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Hematology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Manufacturing & Machinery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A puncture depth adjustable safe blood taking needle includes a casing, a needle core, a spring and a projection structure and a puncture depth adjusting structure that are comprised by the parts mentioned above, which is characterized in that the puncture depth adjusting structure is that the blood taking needle is equipped with an adjusting head. The face of the adjusting head opposite to the needle core is equipped with a rotary inclined face or a rotary step face. The adjusting head is connected rotationally to the needle core, which is provided with a bump position. The rotary inclined face or the rotary step face of the adjusting head falls on the firing direction of the bump position of the needle core. The scheme is that bump positions with different height are obtained by fixing the rotation of the rotary inclined face or the rotary step face to change the stretching length of the needle tip. Compared with a traditional adjusting structure of a screw mechanism, the axial motion between the adjusting head and the casing is reduced. The essential difference makes the structure and a mould simplified and is benefit to the improvement of the product quality and precision regulation in an angle of process, which lowers the manufacturing cost and plays an important role in mass production.
Description
Technical field
This utility model relates to a kind of disposable medical safety automatic blood-taking needle, be particularly related to a kind of novel adjusting header structure that uses on this class blood taking needle, can accurately regulate the degree of depth that blood taking needle penetrates into human body skin by this adjusting head, to adapt to the needs of all ages and classes, all kinds cortex.
Background technology
Compare with common disposable safe automatic blood-taking needle, the disposable safe automatic blood-taking needle that band is regulated head is having important breakthrough aspect the control depth of needling.It changes the shortcoming that blood taking needle in the past can't be regulated the blood sampling degree of depth, can such as adult, child and male, women etc., treat with a certain discrimination at the difference object of taking a blood sample, and handles flexibly, thereby reaches best blood sampling effect.In the practice, this blood sampling depth adjustment structure has not only obtained medical personnel's favorable comment, and the patient that taken a blood sample deeply welcomes.
In the prior art, relevant blood taking needle depth of needling adjustment structure is various informative, and Chinese patent once disclosed the patent application that the relevant depth of needling of too much part is regulated, and wherein, representative has following three:
1, the name that proposes July 13 calendar year 2001 is called " the perverse pin depth adjustment of hemostix head ", and application number is the utility application of 01244815.X.
2, the name that proposes October 9 calendar year 2001 is called " hemostix pricker degree of depth modified model is regulated head ", and application number is 01263172.8 utility application.
3, the name that proposed on November 29th, 2002 is called " modified model is executed Bill's disposable adjustable safety automatic blood-taking needle ", and application number is 02286472.5 utility application.
More than in three patent applications, although adjustment structure is distinguished to some extent, its ultimate principle all is to adopt screw mechanism to move out the pin hole end face at axial relative position, penetrates length thereby adjust needle point.Though this structure was obtaining good effect in the practice in the past, but still have the following disadvantages from the frame for movement angle analysis: relative housing produces and moves forward and backward when 1, rotating owing to the adjusting head, therefore have than mistake between every grade practical adjustments amount and the theoretical regulated quantity, cause the depth of needling degree of regulation low; 2, every grade regulated quantity is difficult to accomplish unanimity; 3, regulate head and be connected by screw mechanism with housing, the structure more complicated also is difficult to kinematic accuracy and product quality between assurance two members on the technology; 4, because the layout of screw mechanism makes increase relative with length of volume of blood taking needle.For this reason, this utility model is broken above-mentioned conventional helical adjustment structure pattern, from another angle design a kind of blood taking needle of novel acupuncture depth adjustment structure, to overcome above-mentioned deficiency.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of depth-adjustable needle insertion safety blood taking pin, mainly form by housing, nook closing member, spring and the ejection structure that constitutes thus and paracentesis depth adjustment structure.Described paracentesis depth adjustment structure is: be provided with one and regulate head on blood taking needle, this adjusting head is provided with spin canting or rotation cascaded surface over against the face of nook closing member, regulating the relative nook closing member of head is rotationally connected, nook closing member is provided with impact site, and spin canting or the rotation cascaded surface of regulating head drop on the firing direction of nook closing member impact site.
The related content and the change interpretation of technique scheme are as follows:
1, the paracentesis depth adjustment structure described in this programme can be applied in the existing various shooting type blood taking needles, and it is unimportant which kind of specifically to adopt match as for the shooting structure.
2, in the such scheme, a kind of general name of described housing blood taking needle shell may be different at its concrete member title of blood taking needle of different structure, sees this programme embodiment, regulating head is to be rotatedly connected with pushing away a device, sends out the part that device can be understood as housing but push away.
3, in the such scheme, the surfaces of revolution of regulating on the head has two kinds of connection of equivalent type, and a kind of is spin canting, and another kind is the rotation cascaded surface, and wherein, spin canting comprises screw inclined plane and similar inclined-plane; The rotation cascaded surface is similar to the spiral stairs structure, the ladder that has the rotation of one-level one-level to rise or rise down.
4, in the such scheme, when making nook closing member bump spin canting or rotation cascaded surface stressed evenly, spin canting or the rotation cascaded surface that to regulate on the head are made up of half section on a left side and right half section two parts, and wherein, a part overlaps with another part behind the Rotate 180 ° vertically; The effect end of impact site is designed to a little or line on the nook closing member, and corresponding rotation inclined-plane or the left and right setting of rotation cascaded surface two parts respectively.
5, in the such scheme, distinguish the different adjustment degree of depth, between the contact surface of regulating head and housing, be provided with rotary positioning structure for stepping, the locating slot that this structure is provided with by circumferentially being separated by constituted with protruding the cooperation, locating slot and projection are among both, and one is located on the housing, and another is located at regulates on the head.In other words, locating slot can be located on the housing, projection is located at regulates on the head; Also locating slot can be located at and regulate on the head, projection is located on the housing.Stepping quantity is relevant with locating slot quantity, and two to six locating slots are set such as circumferentially being separated by, and regulates constituting two to six grades of paracentesis depths mutually.
6, in the such scheme, for the circumferential rotational angle of the relative housing of regulating and controlling head, between adjusting head and housing, be provided with the corner limiting structure, this structure is cooperated with spacing edge-cut by a projection and constitutes, in projection and the spacing edge-cut, one is located on the housing, and another is located at regulates on the head, projection is positioned on the spacing edge-cut, and limits angle range by the arc length of spacing edge-cut.
7, in the such scheme, described paracentesis depth adjustment structure can design head, middle part and the afterbody at blood taking needle, but design is in blood taking needle head best results.
Regulate head and be located at the blood taking needle head, regulate the anterior end face that a contact blood sampling site is arranged of head, end face central authorities are provided with needle outlet, and the rear portion is rotationally connected with the housing formation by cannelure and annular protrusion structure; Regulate between the contact surface of head and housing and be provided with rotary positioning structure, the locating slot that this structure is provided with by circumferentially being separated by cooperates with projection and constitutes, locating slot and protruding among both, and one is located on the housing, and another is located in the adjusting; Regulate between head and the housing and be provided with the corner limiting structure, this structure is cooperated with spacing edge-cut by a projection and constitutes, in projection and the spacing edge-cut, one is located on the housing, another is located at regulates on the head, and projection is positioned on the spacing edge-cut, and limits angle range by the arc length of spacing edge-cut.
This utility model principle is: regulate head relatively nook closing member rotation simultaneously, spin canting or rotation cascaded surface with differing heights in the face of the nook closing member impact site, thereby the extension elongation when changing the needle point shooting obtains different paracentesis depths.This this programme design is compared with the adjustment structure of conventional helical class of establishment and is existed tangible essential distinction, and its innovative point has been to simplify the movement relation between the member, improves the quality of products and precision.
Because the technique scheme utilization, this utility model compared with prior art has following advantage:
1, this utility model does not move to axial owing to only relatively rotate between adjusting head and the housing, and the error of bringing by cooperatively interacting is little, so depth of needling degree of regulation height.
2, owing to do not move to axial, precision between each grade and concordance are as long as control by the surfaces of revolution and angle orientation, and be obviously easy than conventional helical mechanism.
3, this utility model structure and mould are simple, help improving the quality of products from technology, reduce production costs, and be especially significant to producing in enormous quantities.
4, this utility model has been broken the traditional mode of screw machine in the past, has reduced the axially-movable between the member, more helps simplified structure, reduced volume and length.
Description of drawings
Accompanying drawing 1 uses the cutaway view of preceding state for this utility model embodiment;
Accompanying drawing 2 uses the cutaway view of back state for this utility model embodiment;
Accompanying drawing 3 is this utility model embodiment spin canting expanded view;
Accompanying drawing 4 is this utility model rotation cascaded surface expanded view;
Accompanying drawing 5 is regulated an axonometric chart () for this utility model embodiment;
Accompanying drawing 6 is regulated an axonometric chart (two) for this utility model embodiment;
Accompanying drawing 7 is regulated an axonometric chart (three) for this utility model embodiment;
Accompanying drawing 8 is sent out device axonometric chart () for this utility model embodiment pushes away;
Accompanying drawing 9 is sent out device axonometric chart (two) for this utility model embodiment pushes away;
Accompanying drawing 10 is this utility model embodiment shell axonometric chart;
Accompanying drawing 11 is this utility model embodiment tail-hood axonometric chart ();
Accompanying drawing 12 is this utility model embodiment tail-hood axonometric chart (two);
Accompanying drawing 13 is this utility model embodiment nook closing member axonometric chart ();
Accompanying drawing 14 is this utility model embodiment nook closing member axonometric chart (two).
In the above accompanying drawing: 1, regulate head; 2, shell; 3, push away a device; 4, tail-hood; 5, spring; 6, nook closing member; 7, pin medicated cap; 8, spin canting; 9, rotation cascaded surface; 10, impact site; 11, locating slot; 12, projection; 13, projection; 14, spacing edge-cut; 15, end face; 16, needle outlet; 17, cannelure; 18, annular protrusion; 19, arm; 20, inclined-plane; 21, barb; 22, elasticity card; 23, coupler body; 24, gear arrow.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment: shown in accompanying drawing 1~3, Fig. 4~14, a kind of depth-adjustable needle insertion safety blood taking pin is by shell 2, push away and send out a device 3, tail-hood 4, nook closing member 6, spring 5, pin medicated cap 7 and regulate 1 and form.Shell 2, push away and send out device 3 and tail-hood 4 constitutes the blood taking needle housings, wherein, tail-hood 4 is fixed on an end of shell 2, and extends 19, one arm 19 heads of two arms be provided with inclined-plane 20 in shell 2, and another arm 19 heads are provided with barb 21; Push away a device 3 slips and be located in the shell 2, its front end stretches out from shell 2, can only be in axial sliding but push away device 3 opposite shell 2, can not relatively rotate.Nook closing member 6 is arranged in to push away sends out device 3 cavitys, be provided with spring 5 between its rear end and the tail-hood 4, nook closing member 6 both sides are respectively equipped with guiding rib, this guiding rib is arranged in and pushes away the gathering sill of sending out device 3 inwalls, one side of nook closing member 6 is provided with elasticity card 22, the port card of this elasticity card 22 is sent out on device 3 end faces pushing away, and the sidepiece of elasticity card 22 is the inclined-plane, this inclined-plane push away send out device 3 slide backward in inclined-plane 20 effects of arm 19.Push away and send out a device 3 be provided with a coupler body 23 on the endface position of corresponding barb 21, this coupler body 23 is pushing away when sending out a device 3 and slideing rearwardly to certain position and barb 21 snap closes, makes to push away device 3 opposite shell 2 and can't slide and lost efficacy.
The paracentesis depth adjustment structure is in this blood taking needle: send out on the device 3 overcoat one pushing away of blood taking needle head and regulate 1, regulating 1 front portion has the end face 15 of a contact blood sampling site, end face 15 central authorities are provided with needle outlet 16, and the rear portion inner edge is sent out device 3 outer rims and constituted by cannelure 17 and annular protrusion 18 and be rotationally connected with pushing away.This adjusting 1 face over against nook closing member 6 is provided with spin canting 8, and this spin canting 8 is made up of half section on a left side and right half section two parts, and wherein, a part overlaps with another part behind the Rotate 180 ° vertically, held stationary in the time of making adjusting 1 be subjected to nook closing member 6 like this to clash into.Nook closing member 6 is provided with impact site 10, the effect end of this impact site 10 is designed to a little or line, and the left and right setting of corresponding rotation inclined-plane 8 two parts respectively, spin canting 8 drops on the firing direction of nook closing member 6 impact site 10, when regulating 1 when nook closing member 6 rotates, spin canting 8 with differing heights in the face of nook closing member 6 impact site 10, thereby the extension elongation when changing the needle point shooting obtains different paracentesis depths.
For stepping is distinguished the different adjustment degree of depth, regulate 1 with the contact surface that pushes away a device 3 between be provided with rotary positioning structure, five locating slots 11 that this structure is provided with by circumferentially being separated by cooperate with a projection 12 and constitute, five locating slots 11 are located to be regulated on 1 inner edge, and a projection 12 is located to push away to be sent out on device 3 outer rims.The both sides of projection 12 are offered a groove respectively, make projection 12 be elastic construction.
For pushing away relatively, regulating and controlling 1 sends out device 3 circumferential rotational angles, be provided with the corner limiting structure with pushing away between the device 3 regulating 1, this structure is cooperated with spacing edge-cut 14 by a projection 13 and constitutes, projection 13 is located to be regulated on 1 inner edge, spacing edge-cut 14 is opened in to push away sends out device 3 front ends, projection 13 is positioned on the spacing edge-cut 14, and limits angle range by the arc length of spacing edge-cut 14.
During use, pull out pin medicated cap 7, rotate to regulate 1 as required and regulate paracentesis depth, hand-held then blood taking needle shell 2, needle outlet 16 is aimed at blood sampling sites push, push away this moment and send out a device 3 and try hard to recommend on shell 2 inner chambers of moving lower edge slidingly outside, inclined-plane 20 forces elasticity card 22 to send out device 3 and thread off with pushing away, spring 5 promotes nook closing member 6 along the gathering sill shooting, and needle point penetrates needle outlet 16 thorns at blood sampling site.Simultaneously, sliding on shell 2 inner chambers owing to pushing away a device 3, make coupler body 23 and barb 21 snap closes, therefore push away device 3 opposite shell 2 and can't slide and cease to be in force automatically.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (6)
1, a kind of depth-adjustable needle insertion safety blood taking pin, comprise housing, nook closing member [6], spring [5] and the ejection structure and the paracentesis depth adjustment structure that constitute thus, it is characterized in that the paracentesis depth adjustment structure is: on blood taking needle, be provided with one and regulate head [1], this adjusting head [1] is provided with spin canting [8] or rotation cascaded surface [9] over against the face of nook closing member [6], regulating the relative nook closing member [6] of head [1] is rotationally connected, nook closing member [6] is provided with impact site [10], and spin canting [8] or the rotation cascaded surface [9] of regulating head [1] drop on the firing direction of nook closing member [6] impact site [10].
2, depth-adjustable needle insertion safety blood taking pin according to claim 1, it is characterized in that: described spin canting [8] or the rotation cascaded surface of regulating on the head [1] [9] is made up of half section on a left side and right half section two parts, wherein, a part overlaps with another part behind the Rotate 180 ° vertically; The effect end that nook closing member [6] is gone up impact site [10] is designed to a little or line, and corresponding rotation inclined-plane [8] or the left and right setting of rotation cascaded surface [9] two parts respectively.
3, depth-adjustable needle insertion safety blood taking pin according to claim 1 and 2, it is characterized in that: described adjusting head [1] circumferentially is rotationally connected with housing, wherein, be provided with rotary positioning structure between the contact surface of adjusting head [1] and housing, the locating slot [11] that this structure is provided with by circumferentially being separated by cooperates formation with projection [12], locating slot [11] and projection [12] are among both, and one is located on the housing, and another is located at regulates on the head [1].
4, depth-adjustable needle insertion safety blood taking pin according to claim 3 is characterized in that: described circumferentially being separated by is provided with two to six locating slots [11], and two to six grades of paracentesis depths of corresponding formation are regulated.
5, depth-adjustable needle insertion safety blood taking pin according to claim 1 and 2, it is characterized in that: described adjusting head [1] circumferentially is rotationally connected with housing, wherein, regulate between head [1] and the housing and be provided with the corner limiting structure, this structure cooperates formation by a projection [13] with spacing edge-cut [14], projection [13] and spacing edge-cut [14] are among both, one is located on the housing, another is located at regulates on the head [1], projection [13] is positioned on the spacing edge-cut [14], and limits angle range by the arc length of spacing edge-cut [14].
6, depth-adjustable needle insertion safety blood taking pin according to claim 1, it is characterized in that: described adjusting head [1] is located at the blood taking needle head, regulating head [1] front portion has the end face [15] of a contact blood sampling site, end face [15] central authorities are provided with needle outlet [16], and the rear portion constitutes by cannelure [17] and annular protrusion [18] structure and housing and is rotationally connected; Regulate between the contact surface of head [1] and housing and be provided with rotary positioning structure, the locating slot [11] that this structure is provided with by circumferentially being separated by cooperates formation with projection [12], and locating slot [11] and protruding [12] are among both, and one is located on the housing, and another is located in the adjusting [1]; Regulate between head [1] and the housing and be provided with the corner limiting structure, this structure cooperates formation by a projection [13] with spacing edge-cut [14], projection [13] and spacing edge-cut [14] are among both, one is located on the housing, another is located at regulates on the head [1], projection [13] is positioned on the spacing edge-cut [14], and limits angle range by the arc length of spacing edge-cut [14].
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU032205171U CN2621601Y (en) | 2003-03-18 | 2003-03-18 | Safety blood taking needle with adjutable puncture depth |
DE20313528U DE20313528U1 (en) | 2003-03-18 | 2003-08-27 | Safe blood sampling unit with adjustable penetration depth, has rotary adjustment knob with internal inclined surfaces to limit travel of needle holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU032205171U CN2621601Y (en) | 2003-03-18 | 2003-03-18 | Safety blood taking needle with adjutable puncture depth |
Publications (1)
Publication Number | Publication Date |
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CN2621601Y true CN2621601Y (en) | 2004-06-30 |
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ID=29718766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNU032205171U Expired - Lifetime CN2621601Y (en) | 2003-03-18 | 2003-03-18 | Safety blood taking needle with adjutable puncture depth |
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Country | Link |
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CN (1) | CN2621601Y (en) |
DE (1) | DE20313528U1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1846612B (en) * | 2005-02-07 | 2011-09-14 | 史蒂文·施拉格 | Single use lancet device |
US8034069B2 (en) | 1999-11-02 | 2011-10-11 | Steven Schraga | Single use lancet assembly |
US8048097B2 (en) | 2001-08-14 | 2011-11-01 | Steven Schraga | Single use lancet assembly |
US8118825B2 (en) | 2002-04-29 | 2012-02-21 | Steven Schraga | Lancet device |
CN102379704A (en) * | 2011-08-24 | 2012-03-21 | 苏州生物医学工程技术研究所 | Blood sampler with adjustable puncture depth |
CN103919562A (en) * | 2014-05-04 | 2014-07-16 | 天津华鸿科技有限公司 | Blood taking needle |
CN104887276A (en) * | 2015-05-11 | 2015-09-09 | 复旦大学附属肿瘤医院 | Adjustable biopsy sampling device |
USD806246S1 (en) | 2016-02-25 | 2017-12-26 | Steven Schraga | Lancet cover |
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US8715309B2 (en) | 2002-04-29 | 2014-05-06 | Steven Schraga | Lancet device |
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2003
- 2003-03-18 CN CNU032205171U patent/CN2621601Y/en not_active Expired - Lifetime
- 2003-08-27 DE DE20313528U patent/DE20313528U1/en not_active Expired - Lifetime
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US8034069B2 (en) | 1999-11-02 | 2011-10-11 | Steven Schraga | Single use lancet assembly |
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CN104887276A (en) * | 2015-05-11 | 2015-09-09 | 复旦大学附属肿瘤医院 | Adjustable biopsy sampling device |
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CN107854129A (en) * | 2017-10-23 | 2018-03-30 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen of the rearmounted regulation of paracentesis depth |
CN109259773A (en) * | 2018-10-19 | 2019-01-25 | 宁波美生医疗器材有限公司 | A kind of push type blood taking needle |
CN109259773B (en) * | 2018-10-19 | 2024-06-11 | 宁波美生医疗器材有限公司 | Push type blood taking needle |
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