CN106859669B - Disposable safety blood taking needle, assembling method and using method - Google Patents
Disposable safety blood taking needle, assembling method and using method Download PDFInfo
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- CN106859669B CN106859669B CN201710046858.5A CN201710046858A CN106859669B CN 106859669 B CN106859669 B CN 106859669B CN 201710046858 A CN201710046858 A CN 201710046858A CN 106859669 B CN106859669 B CN 106859669B
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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
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
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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
- A61B5/150175—Adjustment of penetration 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
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150274—Manufacture or production processes or steps for blood sampling devices
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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
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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
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
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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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Abstract
The invention relates to the technical field of medical instruments, and particularly discloses a disposable safety blood taking needle and an assembling method and a using method thereof, wherein when a needle core of the disposable safety blood taking needle is at an initial fixed position, a spring is in a stretching state and is used for storing elastic potential energy; after the trigger part is pressed to trigger the needle core, the needle core moves to the acupuncture extreme limit, so that the depth of the needle point penetrating into the skin can be controlled, and the needle point is prevented from penetrating too deeply; after blood sampling is finished, the needle tip automatically enters the shell, and the needle tip is prevented from being exposed to the outside and injuring people. The spring in the structure provides potential energy for ejection by utilizing tensile energy storage, and also stores energy in a compression mode under the action of the ejection potential energy, so that retraction potential energy for automatic retraction of the needle point is provided.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a disposable safety blood taking needle and an assembly method and a use method thereof.
Background
A disposable blood lancet is a commonly used medical instrument, which uses a needle tip of the blood lancet to prick the skin of a patient to collect a blood sample. The existing blood taking needles on the market have various structures, but most of the blood taking needles have complex structures and higher cost. Some of the ejection type disposable blood taking needles release the elastic potential energy stored by compressing the compression spring to pierce the needle tip into the skin, and the ejection type blood taking needles have the disadvantages that although the potential energy stored by compressing can drive the needle tip to pierce the skin, the velocity of piercing the skin is small due to the limited potential energy, the patient feels pain, and the comfort level is poor; in addition, the needle tip cannot be automatically recompressed after the compression potential energy of the compressed spring is released, and the needle tip cannot be actively retracted into the cavity.
Disclosure of Invention
The technical problem to be solved is to provide a disposable safety lancet with an improved structure, an assembly method and a use method thereof, so as to solve the related defects in the prior art.
In order to solve the technical problem, the technical scheme is as follows: a disposable safety blood taking needle comprises a shell, a needle core and a spring, wherein an ejection accommodating cavity is formed in the shell, and an outlet is formed in the front end of the ejection accommodating cavity; an initial fixing position is arranged at one end, far away from the outlet, of the stylet in the ejection accommodating cavity, and a pressing triggering part is arranged at the initial fixing position of the shell; the needle core is provided with a needling extreme limit position at a position close to the outlet in the ejection accommodating cavity, and the needle core is provided with a post-needling holding position between the needling extreme limit position and the initial fixing position; one end of the spring is fixedly connected with the shell, and the other end of the spring is fixedly connected with the needle core; the spring comprises at least three working states: when the stylet is located at the initial fixing position, the spring is in a stretching state; when the needle core is positioned at the acupuncture limit, the spring is in a first compression state; when the stylet is positioned at the retention position after puncturing, the spring is in a second compression state or a natural state; when the spring is positioned at the initial fixed position, the stored elastic potential energy is released to drive the stylet to move to the acupuncture limit.
In the disposable safety blood taking needle of the embodiment, when the needle core is at the initial fixed position, the spring is in a stretching state and is used for storing elastic potential energy; after the trigger part is pressed to trigger the needle core, the needle core moves to the acupuncture extreme limit, so that the depth of the needle point penetrating into the skin can be controlled, and the needle point is prevented from penetrating too deeply; after blood sampling is finished, the needle tip automatically enters the shell, and the needle tip is prevented from being exposed to the outside and injuring people. The spring in the structure provides potential energy for ejection by utilizing tensile energy storage, and also stores energy in a compression mode under the action of the ejection potential energy, so that retraction potential energy for automatic retraction of the needle point is provided.
In a preferred embodiment, the stylet includes a stylet body, one end of the stylet body is provided with a needle point, the other end of the stylet body is provided with a needle seat, the needle seat includes a bottom plate with elasticity, and when the stylet is in an initial fixing position, the bottom plate is located in a triggering position of the pressing triggering part.
In a preferred embodiment, the ejection accommodating cavity is provided with an initial limiting part at an initial fixing position, and the bottom plate is provided with a limiting boss matched with the initial limiting part.
In a preferred embodiment, the ejection accommodating cavity is provided with an ejection limiting part at the acupuncture extreme limit position, when the needle core is located at the acupuncture extreme limit position, the front end of the needle seat contacts with the ejection limiting part, and the needle tip extends out of the shell.
In a preferred embodiment, two side walls of the ejection accommodating cavity at the post-pricking holding position are provided with mutually symmetrical inclined limiting parts, and an included angle between the inclined limiting parts and the side wall of the ejection accommodating cavity at one side close to the outlet is an acute angle; the both sides of needle file are equipped with mutual symmetry and have elastic oblique spacing piece, and under the natural state, the biggest interval between the spacing piece of slant is greater than the minimum interval between the spacing portion of slant.
One preferred embodiment further comprises a needle sleeve, the needle sleeve comprises a sleeve and a handle, one end of the sleeve is connected with the handle, the other end of the sleeve is sleeved on the needle point and detachably connected with the needle body, at least two mutually separated positioning bosses are arranged at one end, close to the handle, of the sleeve along the circumferential direction, and a positioning part matched with the positioning bosses is arranged at a position, close to the outlet, of the ejection accommodating cavity; when the stylet is located at the initial fixing position, the positioning boss is in contact fit with the positioning part.
In a preferred embodiment, the housing comprises an upper housing and a lower housing which are in plug-in fit with each other, and the ejection accommodating cavity is formed between the upper housing and the lower housing.
According to a preferred embodiment, the upper shell is provided with an initial limiting portion and a pressing triggering portion at the bottom of the initial fixing portion, the upper shell is provided with an ejection limiting portion at the bottom of the acupuncture limit portion, the upper shell is provided with oblique limiting portions on the side walls of two sides of the acupuncture holding portion, and the outlets of the upper shell and the lower shell are respectively provided with a positioning portion.
A method for assembling a disposable safety lancet, comprising the steps of:
(1) the spring is sleeved on the needle core, and the needle sleeve is sleeved on the needle point and is fixedly connected with the needle body;
(2) placing the assembly body formed in the step one (1) in an upper shell, and fixedly connecting one end of a spring with the upper shell and fixedly connecting the other end of the spring with a needle core;
(3) pushing the needle core to an initial fixing position, wherein the spring is in a stretching state, the limiting boss is in contact fit with the initial limiting part, and the positioning boss is in contact fit with the positioning part;
(4) the lower shell and the upper shell are buckled and fixed.
A use method of a disposable safety blood taking needle comprises the following steps:
(1) rotating the handle until the sleeve is separated from the needle body and the positioning boss is separated from the positioning part, and then pulling out the needle sleeve from the shell;
(2) aligning the outlet position of the housing with a blood collection site of a patient and contacting the skin;
(3) the pressing trigger part is pressed until the limiting boss is separated from the initial limiting part, at the moment, the elastic potential energy of the spring is released to drive the needle core to move to the acupuncture limit, and at the moment, the needle point extends out of the shell and penetrates into the skin to finish the blood sampling action; because the spring is in a compressed state when the needle core is positioned at the acupuncture extreme limit, the elastic potential energy generated by the compression of the spring is released after the blood sampling is finished, the needle core is driven to move to the acupuncture back holding position, and the needle point is positioned in the shell at the moment.
Drawings
FIG. 1 is a schematic view showing an outer structure of a disposable safety lancet in an assembled state;
FIG. 2 is a schematic structural diagram of an upper housing according to a first embodiment;
FIG. 3 is a schematic structural diagram of a lower housing according to a first embodiment of the present invention;
FIG. 4 is a schematic view of the assembly of the needle hub and the stylet according to one embodiment;
FIG. 5 is a schematic view of the structure of the stylet of one embodiment;
FIG. 6 is a schematic view of the needle core assembly of the first embodiment in an initial fixed position;
FIG. 7 is a schematic view of the assembly of the needle core during ejection according to one embodiment;
FIG. 8 is a schematic view of the needle core assembly at the needle extreme limit according to one embodiment;
FIG. 9 is a schematic view of the needle core in the retention position after piercing according to one embodiment;
FIG. 10 is a schematic structural view of an upper case according to a second embodiment;
FIG. 11 is a schematic view showing the structure of a core in the second embodiment;
FIG. 12 is an assembly view of the needle core of the second embodiment in the initial fixing position.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1 and 6-9, the disposable safety lancet of the present embodiment includes a housing, a core 10, a needle sheath 40 and a spring 50, wherein the housing includes an upper housing 20 and a lower housing 30 which are inserted into each other, an ejection accommodating cavity is formed between the upper housing 20 and the lower housing 30, and an outlet is provided at a front end of the ejection accommodating cavity.
As shown in fig. 2, the upper case 20 of this embodiment is provided with an initial limiting portion 21 and a pressing triggering portion 25 at the bottom of the initial fixing position, the upper case 20 is provided with an ejection limiting portion 23 at the bottom of the needling limit position, the upper case 20 is provided with oblique limiting portions 22 on the side walls of the two sides of the needling holding position, an included angle between the oblique limiting portion 22 and the side wall of the upper case close to the outlet side is an acute angle, and the outlets of the upper case 20 and the lower case 30 are respectively provided with a positioning portion 27. As shown in fig. 3, the bottom of the lower case 30 of the present embodiment is provided with a reinforcing rib 31.
As shown in fig. 5, the needle core 10 of the present embodiment includes a needle body 11, one end of the needle body 11 is provided with a needle point 12, and the other end is provided with a needle seat, the needle seat includes an elastic bottom plate 13, and the bottom plate 13 is provided with a limit boss 14 matched with an initial limit portion 21. The bottom plate 13 is also provided with a lug 16 with the same height as the limiting lug 14, and the integral structure formed by the limiting lug 14 and the lug 16 slides in a sliding cavity 26 at the bottom of the upper shell 20 shown in fig. 2. The two sides of the needle seat are provided with mutually symmetrical and elastic oblique limiting pieces 17, and under a natural state, the maximum distance between the oblique limiting pieces 17 is larger than the minimum distance between the oblique limiting parts 22.
As shown in fig. 4, the needle sheath 40 of the present embodiment includes a cannula 41 and a handle 42, one end of the cannula 41 is connected to the handle 42, the other end is sleeved on the needle tip 12 and detachably connected to the needle body 11, at least two mutually separated positioning bosses 43 are arranged at one end of the cannula 41 close to the handle 42 along the circumferential direction, and when the stylet is located at the initial fixing position, the positioning bosses 43 are in contact fit with the positioning portions 27.
As shown in fig. 2, the upper case 20 is provided with a spring fixing portion 24 inside, and as shown in fig. 5, the hub is provided with a spring fixing portion 15. In the assembled state, the spring 50 is sleeved on the stylet, one end of the spring is fixedly connected with the spring fixing portion 24, and the other end of the spring is fixedly connected with the spring fixing portion 15.
In this embodiment, the spring 50 includes at least three operating states: when the stylet 10 is located at the initial fixed position, the spring 50 is in a stretching state; when the stylet 10 is positioned at the acupuncture limit, the spring 50 is in a first compression state; when the stylet 10 is in the post-puncture holding position, the spring 50 is in a second compressed or natural state. It should be noted that the stored elastic potential energy of the spring in the initial fixed position is enough to drive the stylet to move to the acupuncture limit after being released.
In this embodiment, when the stylet is in the initial fixed position, the spring is in a stretched state for storing elastic potential energy; after the trigger part is pressed to trigger the needle core, the needle core moves to the acupuncture extreme limit, so that the depth of the needle point penetrating into the skin can be controlled, and the needle point is prevented from penetrating too deeply; after blood sampling is finished, the needle tip automatically enters the shell, and at the moment, because the spring is in a compressed or natural state, the needle tip cannot come out of the shell, so that the needle tip is effectively prevented from being exposed to the outside to hurt people. The spring in the structure provides potential energy for ejection by utilizing tensile energy storage, and also stores energy in a compression mode under the action of the ejection potential energy, so that retraction potential energy for automatic retraction of the needle point is provided.
A method for assembling a disposable safety lancet, comprising the steps of:
(1) the spring 50 is sleeved on the needle core 10, and at the moment, the needle sleeve 40 is sleeved on the needle point 12 and is fixedly connected with the needle body 11;
(2) placing the assembly body formed in the step one (1) in an upper shell 20, and fixedly connecting one end of a spring 50 with the upper shell and fixedly connecting the other end with a needle core;
(3) the stylet 10 is pushed to an initial fixing position, at the moment, as shown in fig. 6, the spring 50 is in a stretching state, the limiting boss is in contact fit with the initial limiting part, and the positioning boss is in contact fit with the positioning part;
(4) the lower shell and the upper shell are buckled and fixed.
A use method of a disposable safety blood taking needle comprises the following steps:
(1) rotating the handle shown in fig. 6 until the cannula is separated from the needle body and the positioning boss is separated from the positioning part, and then pulling out the needle sleeve from the shell;
(2) aligning the outlet position of the housing with a blood collection site of a patient and contacting the skin;
(3) the pressing trigger part is pressed until the limiting boss is separated from the initial limiting part, and at the moment, the elastic potential energy of the spring is released to drive the needle core to move towards the needle punching limit. Fig. 7 shows that the stylet moves to a position where the slant-direction stopper piece 17 contacts the slant-direction stopper portion 22, and at this time, the slant-direction stopper piece 17 is compressed and passes through the slant-direction stopper portion 22 because of its elasticity. Fig. 8 shows the assembly schematic diagram when the needle core moves to the needle puncturing limit position, at this time, the front end of the needle base contacts with the ejection limit part 23, and the needle tip extends out of the shell and pierces the skin of the patient to complete the blood sampling action. In this state, because the spring is in a compressed state, elastic potential energy generated by the compression of the spring after blood collection is released to drive the needle core to move to a puncture holding position, the elastic potential energy of the spring is eliminated by the inclined limiting part 22, and at the moment, the inclined limiting piece 17 is positioned in an acute angle area of the inclined limiting part 22 to contact with the acute angle area, so that the needle tip is held in the shell, and multiple punctures are prevented.
Example two
The difference between the second embodiment and the first embodiment is the fixing manner of the spring 50. As shown in fig. 10, a spring clip 28 is disposed in the upper housing 20, a slot 29 for accommodating the needle bar is disposed on the spring clip 28, a corresponding spring clip and slot are disposed in the lower housing 30, after the upper and lower housings are fastened, the two slots form a through cavity, the diameter of the through cavity is smaller than the major diameter of the spring 50, and during installation, the front end of the spring 50 is located between the spring clip and the outlet, so as to fix one end of the spring. As shown in fig. 11, a fixing ring groove 18 is arranged at the position of the needle rod 11 close to the needle seat, the end part of one end of the spring 50 far away from the outlet is positioned in the fixing ring groove, and the major diameter of the end part of the spring is smaller than the outer diameter of the step at the side of the fixing ring groove 18 close to the needle rod. As shown in FIG. 12, in the installed condition, one end of the spring 50 is secured within the retaining ring groove 18 and the other end is secured to the spring catch 28 on the side thereof adjacent the outlet.
In the first embodiment, the end part of the spring is stressed on one side, while the stress direction of the end part of the spring in the first embodiment is consistent with the axis of the spring, namely the direction of the end part of the spring is consistent with the propelling direction of the needle core, so that the accuracy of the ejecting direction is higher.
In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A disposable safety blood taking needle comprises a shell, a needle core and a spring, wherein an ejection accommodating cavity is formed in the shell, and an outlet is formed in the front end of the ejection accommodating cavity; the ejection device is characterized in that an initial fixing position is arranged at one end, far away from the outlet, of the stylet in the ejection accommodating cavity, and a pressing triggering part is arranged at the initial fixing position of the shell; the needle core is provided with a needling extreme limit position at a position close to the outlet in the ejection accommodating cavity, and the needle core is provided with a post-needling holding position between the needling extreme limit position and the initial fixing position; one end of the spring is fixedly connected with the shell, and the other end of the spring is fixedly connected with the needle core; the spring comprises at least three working states: when the stylet is located at the initial fixing position, the spring is in a stretching state; when the needle core is positioned at the acupuncture limit, the spring is in a first compression state; when the stylet is positioned at the retention position after puncturing, the spring is in a second compression state or a natural state; when the spring is positioned at the initial fixed position, the stored elastic potential energy is released to drive the stylet to move to the acupuncture limit.
2. The disposable safety lancet according to claim 1, wherein the core comprises a needle body having a needle tip at one end and a needle holder at the other end, the needle holder comprising an elastic bottom plate, the bottom plate being located at a triggering position of the pressing triggering part when the core is in an initial fixing position.
3. The disposable safety lancet according to claim 2, wherein the ejection accommodating chamber is provided with an initial stopper at an initial fixing position, and the base plate is provided with a stopper boss which is matched with the initial stopper.
4. The disposable safety lancet according to claim 2, wherein the ejection accommodating chamber is provided with an ejection limiting portion at the acupuncture extreme position, and when the core is located at the acupuncture extreme position, the front end of the hub contacts the ejection limiting portion, and the needle tip protrudes out of the housing.
5. The disposable safety lancet according to claim 2, wherein the ejection accommodating chamber is provided with symmetrical inclined position-limiting parts on both side walls of the puncture holding position, and an included angle between the inclined position-limiting parts and the side wall of the ejection accommodating chamber on the side close to the outlet is an acute angle; the both sides of needle file are equipped with mutual symmetry and have elastic oblique spacing piece, and under the natural state, the biggest interval between the spacing piece of slant is greater than the minimum interval between the spacing portion of slant.
6. The disposable safety blood taking needle according to any one of claims 2 to 5, further comprising a needle sheath, wherein the needle sheath comprises a sleeve and a handle, one end of the sleeve is connected with the handle, the other end of the sleeve is sleeved on the needle point and detachably connected with the needle body, one end of the sleeve close to the handle is provided with at least two mutually separated positioning bosses along the circumferential direction, and the ejection accommodating cavity is provided with a positioning part matched with the positioning bosses at the position close to the outlet; when the stylet is located at the initial fixing position, the positioning boss is in contact fit with the positioning part.
7. A disposable safety lancet according to claim 6, wherein said housing comprises an upper housing and a lower housing which are mated to each other, said upper housing and said lower housing defining said ejection receiving chamber therebetween.
8. The disposable safety lancet according to claim 7, wherein the upper case is provided with an initial stopper portion and a push trigger portion at the bottom of the initial holding position, the upper case is provided with an ejection stopper portion at the bottom of the needle-piercing stopper portion, the upper case is provided with inclined stopper portions at both side walls of the post-piercing holding position, and the upper case and the lower case are provided with a positioning portion at the outlet thereof, respectively.
9. A method of assembling a disposable safety lancet according to claim 8, comprising the steps of:
(1) the spring is sleeved on the needle core, and the needle sleeve is sleeved on the needle point and is fixedly connected with the needle body;
(2) placing the assembly body formed in the step (1) in an upper shell, and fixedly connecting one end of a spring with the upper shell and fixedly connecting the other end of the spring with a needle core;
(3) pushing the needle core to an initial fixing position, wherein the spring is in a stretching state, the limiting boss is in contact fit with the initial limiting part, and the positioning boss is in contact fit with the positioning part;
(4) the lower shell and the upper shell are buckled and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046858.5A CN106859669B (en) | 2017-01-22 | 2017-01-22 | Disposable safety blood taking needle, assembling method and using method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710046858.5A CN106859669B (en) | 2017-01-22 | 2017-01-22 | Disposable safety blood taking needle, assembling method and using method |
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| CN106859669A CN106859669A (en) | 2017-06-20 |
| CN106859669B true CN106859669B (en) | 2021-03-23 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518905B (en) * | 2017-07-28 | 2023-11-14 | 普昂(杭州)医疗科技股份有限公司 | Baby heel hemostix |
| CN109316195B (en) * | 2017-10-12 | 2021-08-03 | 江西丰临医疗科技股份有限公司 | Safety hemostix |
| CN108937961B (en) * | 2018-07-31 | 2019-11-05 | 苏州施莱医疗器械有限公司 | A kind of hemostix spring tail portion elastic dilatation latching structure |
| CN110051389A (en) * | 2019-06-06 | 2019-07-26 | 忻俊 | Pen-holding type biopsy device |
| CN111436951B (en) * | 2020-03-04 | 2023-05-23 | 天津华鸿科技股份有限公司 | Blood taking needle |
| WO2022078237A1 (en) * | 2020-10-12 | 2022-04-21 | 普昂(杭州)医疗科技股份有限公司 | Needle protection structure and protection method, and needle device |
| CN112472080B (en) * | 2020-10-21 | 2022-11-22 | 苏州施莱医疗器械有限公司 | Blood sampling device with needle unloading pause and cap pricking convenience |
| CN116999248B (en) * | 2023-08-04 | 2024-01-30 | 中国人民解放军军事科学院军事医学研究院 | Single-hand self-ejection hemostasis device and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101190129B (en) * | 2006-11-27 | 2011-01-05 | 上海宝尔生贸易有限公司 | Disposable blood taking needle |
| CN102188251B (en) * | 2010-03-19 | 2013-05-01 | 厚美德生物科技股份有限公司 | Pen point structure of blood sampling pen |
| DE102012019400A1 (en) * | 2012-10-04 | 2014-04-10 | Gerresheimer Regensburg Gmbh | Lancing device for blood sampling |
| CN204091993U (en) * | 2014-06-10 | 2015-01-14 | 苏州施莱医疗器械有限公司 | Prevent the disposable automatic blood-taking needle of secondary puncture |
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