CN105056342A - Device with needling prevention function - Google Patents
Device with needling prevention function Download PDFInfo
- Publication number
- CN105056342A CN105056342A CN201510554915.1A CN201510554915A CN105056342A CN 105056342 A CN105056342 A CN 105056342A CN 201510554915 A CN201510554915 A CN 201510554915A CN 105056342 A CN105056342 A CN 105056342A
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- Prior art keywords
- draw point
- limit base
- elastic
- card
- seat
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Abstract
The invention belongs to the field of medical instruments and particularly relates to a device with a needling preventing function. The device comprises a steel needle and a catheter seat, and an expansion protruding part is arranged on the upper portion of a steel needle tube body. A clamping piece seat is installed at the rear end of the catheter seat, openings are formed in the upper end and the lower end of the clamping piece seat, and an elastic clamping piece in an opening state is installed in the clamping piece seat. The elastic clamping piece is formed by connecting a bent hook at the front end, an elastic arm in the middle and a steel needle limiting seat at the rear end. The bent hook is composed of a hook part and a check piece, a notch corresponding to the hook part is formed in the rear end of the catheter seat, the lower portion of the steel needle tube body sequentially penetrates through the opening in the upper end of the clamping piece seat, the steel needle limiting seat and the opening in the lower end of the clamping piece seat from top to bottom, and the expansion protruding part of the steel needle is located above the steel needle limiting seat all the time. The hook part of the bent hook of the elastic clamping piece in the opening state is hooked in the notch, and the end, opposite to the hook part, of the check piece abuts against the steel needle tube body. By means of the device, medical staff can be prevented from being punctured, and meanwhile the medical staff can be prevented from making contact with blood flowing out of the needle tip of the steel needle.
Description
Technical field
The present invention relates to a kind of device with anti-acupuncture function, belong to medical apparatus field.
Background technology
Transfusion nursing is the important and conventional nursing procedure of in clinical care.The range of application of venous detaining needle constantly expands in recent years, now in each section office's popularization and application clinical.But domestic large quantity research proves, medical worker is the high-risk professional colony of Emperical Bayesian method, the both hands of medical worker is seen often the wound that incised wound, pricking wound etc. cause.And do not wear glove when the medical worker of China's overwhelming majority hospital carries out periphery venipuncture at present, therefore medical worker is when extracting nook closing member (i.e. draw point), have by the probability of the needle pricks of nook closing member on the one hand, on the other hand, the blood that the needle point of draw point flows out also likely touches the wound of medical worker and causes blood contamination, and these all can bring potential safety hazard to medical worker.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: provide a kind of can by the device with anti-acupuncture function of needle point automatic accomodation when extracting draw point, medical worker can be prevented to be wounded by stabbing, the blood that the needle point that simultaneously can prevent medical worker from contacting draw point flows out.
The device with anti-acupuncture function of the present invention, comprises draw point and catheter block, and the top of draw point body has expands bossing; The rear end installing card bar of catheter block, the upper and lower end of card bed all arranges opening, is provided with the elastic card being in softened state in card bed; Elastic card is formed by connecting by the draw point limit base of the crotch of front end, middle elastic arm and rear end, crotch is made up of hook portion and catch, corresponding hook portion is provided with breach in the rear end of catheter block, the bottom of draw point body is from top to bottom successively through the opening of the opening of card bed upper end, draw point limit base, card bed lower end, and the bossing that expands of draw point is positioned at above draw point limit base all the time; The hook portion being in the crotch of the elastic card of softened state hooks in breach and one end that catch deviates from hook portion pushes against draw point body.
Operation principle and process:
This device is (before namely working) in normal state, one end that in elastic card, the catch of crotch deviates from hook portion pushes against draw point body, the hook portion of crotch is hooked in breach, now, elastic card in card bed is in softened state, and card bed is connected with catheter block, after puncture vessel completes, drop-down draw point, draw point is moved to draw point limit base one end, when needle point leaves the catch of crotch, the elastic card strutted resets rapidly under the effect of elastic arm, breach on the hook portion of crotch and catheter block is departed from, and block needle point by catch, make needle point must not move (i.e. draw point cannot return) to upper end, prevent needle point from departing from from elastic card, the bossing that expands of draw point drives that elastic card is complete together with card bed deviates from from catheter block, thus effectively prevent medical worker to be wounded by stabbing, the blood that the needle point simultaneously preventing medical worker from contacting draw point flows out, avoid the wound of medical worker by blood contamination.
One end that above-mentioned catch deviates from hook portion is bent to form a rib downwards, can be increased the contact area of catch and draw point body by rib, makes catch push against draw point body.Wherein, arc transition can be adopted between catch and rib.
Above-mentioned elastic card is made up of thin metal, elasticity is high, in external force (when namely in elastic card, the rib of crotch pushes against draw point body, draw point is to the active force of crotch) event resolves time, higher kinetic energy can be provided for crotch departs from from catheter block breach, thus make elastic card Rapid reset.
Above-mentioned draw point limit base can adopt various ways, and its effect coordinates with the bossing that expands of draw point, carries out spacing, prevent draw point in drop-down draw point process from deviating from from draw point limit base to draw point.The preferred following two schemes of the present invention:
Scheme one:
Described draw point limit base comprises, right, under, left four elastic walls connected in turn, upper and lower two elastic walls respectively there is a through hole, draw point body is by upper and lower two through hole longitudinally through in draw point limit base, and the external diameter and being less than that the aperture of two through hole is greater than draw point body expands the external diameter of bossing.Because two through hole is slightly larger than the external diameter of draw point body, is less than and expands the size of bossing, therefore can limit moving axially of draw point; Owing to there being certain distance between two through hole, when therefore draw point body portion moves in draw point limit base, moving radially of draw point can be limited.Preferably, elastic wall is square.
Scheme two:
Described draw point limit base has vertical through hole, draw point body is longitudinal through in draw point limit base by vertical through hole, the external diameter and being less than that the aperture of vertical through hole is greater than draw point body expands the external diameter of bossing, the distance that distance between catch and draw point limit base is not less than draw point top and expands between bossing, makes expand bossing and the upper end thereof of draw point can be contained between the catch of elastic card and draw point limit base.Because the aperture of vertical through hole is slightly larger than the external diameter of draw point body, is less than and expands the size of bossing, therefore can limit moving axially of draw point; Vertical through hole plays guide and limit effect, can limit moving radially of draw point.
The beneficial effect that the present invention is compared with prior art had is:
Reasonable in design of the present invention, puncture successfully, only need extract draw point, without the need to other more than action, operate handy and safe more, medical personnel is not needed to change original operating habit, extracting in draw point process, needle point meeting automatic accomodation in card bed, and prevents needle point return by catch, avoid medical worker in whole operating process with the contact of blood, also can effectively prevent medical worker from being stabbed by needle point.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of draw point;
The structural representation of Fig. 3 elastic card;
Fig. 4 is the structural representation after elastic card and card bed are deviate from from catheter block.
In figure: 1, draw point; 2, conduit; 3, catheter block; 4, batching pig; 5, opening; 6, breach; 7, card bed; 8, draw point limit base; 9, elastic arm; 10, hook portion; 11, rib; 12, catch; 13, needle point; 14, bossing is expanded; 15, draw point body; 16, through hole; 17, elastic wall.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As Fig. 1, shown in 2, the device with anti-acupuncture function of the present invention comprises draw point 1, conduit 2, catheter block 3, batching pig 4, elastic card and card bed 7, batching pig 4 is elastomeric material (as: polyisoprene), the inner headed face interference fit of its periphery and catheter block 3, conduit 2 and catheter block 3 are riveted, the tip of conduit 2 is provided with conical design, the external diameter of draw point body 15 is slightly larger than the hole size (this is designed with the success rate being beneficial to and improving puncture) at conduit 2 tip, draw point body 15 top has near needle point 13 position of draw point 1 expands bossing 14, the outside dimension of bossing 14 of expanding is greater than draw point body 15, the rear end installing card bar 7 of catheter block 3, card bed 7 upper, lower end all arranges opening 5, the elastic card being in softened state is installed in card bed 7, elastic card is formed by connecting by the draw point limit base 8 of the crotch of front end, middle elastic arm 9 and rear end, crotch is made up of hook portion 10 and catch 12, corresponding hook portion 10 is provided with breach 6 in the rear end of catheter block 3, the bottom of draw point body 15 is from top to bottom successively through the opening 5 of the opening 5 of card bed 7 upper end, draw point limit base 8, card bed 7 lower end, and the bossing 14 that expands of draw point 1 is positioned at above draw point limit base 8 all the time, the hook portion 10 being in the crotch of the elastic card of softened state hooks in breach 6 and one end that catch 12 deviates from hook portion 10 pushes against draw point body 15.
In the present embodiment:
One end that catch 12 deviates from hook portion 10 is bent to form a rib 11 downwards, can increase catch 12 and the contact area of draw point body 15, make catch 12 push against draw point body 15, wherein, can adopt arc transition between catch 12 and rib 11 by rib 11;
Elastic card is made up of thin metal, elasticity is high, in external force (when namely in elastic card, the rib 11 of crotch pushes against draw point body 15, the active force of draw point 1 pair of crotch) event resolves time, higher kinetic energy can be provided for crotch departs from from catheter block 3 breach 6, thus make elastic card Rapid reset;
The structure of draw point limit base 8 as shown in Figure 3, it comprises, right, under, left four elastic walls 17 connected in turn, upper and lower two elastic walls are parallel to each other and respectively there is a through hole 16 in the centre position of the two, draw point body 15 is by upper and lower two through hole 16 longitudinally through in draw point limit base 8, and the external diameter and being less than that the aperture of two through hole 16 is greater than draw point body 15 expands the external diameter of bossing 14; Left and right two elastic walls are parallel to each other, and vertical with upper and lower two elastic walls.Because two through hole 16 is slightly larger than the external diameter of draw point body 15, is less than and expands the size of bossing 14, therefore can limit moving axially of draw point 1; Owing to having certain distance between two through hole 16, when therefore draw point body 15 part moves in draw point limit base 8, moving radially of draw point 1 can be limited.Wherein, elastic wall 17 all adopts square elastic wall.
Operation principle and process:
There is the device of anti-acupuncture function in normal state (before namely working), as shown in Figure 1, one end that in elastic card, the catch 12 of crotch deviates from hook portion 10 pushes against draw point body 15, draw point body 15 passes from two through holes 16 of the draw point limit base 8 of elastic card, the hook portion 10 of crotch is made to hook in the breach 6 of catheter block 3, now, the elastic card in card bed 7 is in softened state, and card bed 7 is connected with catheter block 3, after puncture vessel completes, drop-down draw point 1, draw point 1 is moved to draw point limit base 8 one end, when needle point moves away the rib 11 on the catch 12 of crotch 13 times, the elastic card strutted resets rapidly under the effect of elastic arm 9, the hook portion 10 of crotch is departed from the breach 6 on catheter block 3, and block needle point 13 by catch 12, make needle point 13 must not move (i.e. draw point 1 cannot return) to upper end, prevent needle point 13 from departing from from elastic card, draw point 1 continues to move to draw point limit base 8 one end, expand bossing 14 when the through hole 16 of the top elastic wall 17 of draw point limit base 8 when draw point 1, the aperture of through hole 16 is greater than owing to expanding the size of bossing 14, therefore the bossing 14 that expands of draw point 1 drives that elastic card is complete together with card bed 7 to be deviate from from catheter block 3, needle point 13 automatic accomodation of draw point 1 is in card bed 7, as shown in Figure 4.
Certainly, draw point limit base 8 in the present invention also can adopt other various ways, coordinate as long as can play and carry out spacing with the bossing 14 that expands of draw point 1 to draw point 1, prevent the effect that in drop-down draw point 1 process, draw point 1 is deviate from from draw point limit base 8, as in the following ways (not shown): arrange vertical through hole on draw point limit base, draw point body is longitudinal through in draw point limit base by vertical through hole, the external diameter and being less than that the aperture of vertical through hole is greater than draw point body expands the external diameter of bossing, the distance that distance between catch and draw point limit base is not less than draw point top and expands between bossing, expand bossing and the upper end thereof of draw point can be contained between the catch of elastic card and draw point limit base.Because the aperture of vertical through hole is slightly larger than the external diameter of draw point body, is less than and expands the size of bossing, therefore can limit moving axially of draw point; Vertical through hole plays guide and limit effect, can limit moving radially of draw point.
By the device with anti-acupuncture function of the present invention, can extract in draw point 1 process, make needle point 13 automatic accomodation in card bed 7, and prevent needle point 13 return by catch 12, thus effectively prevent medical worker to be wounded by stabbing, the blood that the needle point 13 simultaneously preventing medical worker from contacting draw point 1 flows out, avoids the wound of medical worker by blood contamination.
Claims (7)
1. there is a device for anti-acupuncture function, comprise draw point (1) and catheter block (3), it is characterized in that: the top of draw point body (15) has expands bossing (14), rear end installing card bar (7) of catheter block (3), the upper and lower end of card bed (7) all arranges opening (5), and card bed is provided with the elastic card being in softened state in (7), elastic card is by the crotch of front end, middle elastic arm (9) and the draw point limit base (8) of rear end are formed by connecting, crotch is made up of hook portion (10) and catch (12), corresponding hook portion (10) is provided with breach (6) in the rear end of catheter block (3), the bottom of draw point body (15) is from top to bottom successively through the opening (5) of card bed (7) upper end, draw point limit base (8), the opening (5) of card bed (7) lower end, the bossing (14) that expands of draw point (1) is positioned at draw point limit base (8) top all the time, the hook portion (10) being in the crotch of the elastic card of softened state hooks in breach (6) and one end that catch (12) deviates from hook portion (10) pushes against draw point body (15).
2. the device with anti-acupuncture function according to claim 1, is characterized in that: one end that described catch (12) deviates from hook portion (10) is bent to form a rib (11) downwards.
3. the device with anti-acupuncture function according to claim 2, is characterized in that: adopt arc transition between described catch (12) and rib (11).
4. the device with anti-acupuncture function according to claim 1,2 or 3, is characterized in that: described elastic card is made up of thin metal.
5. the device with anti-acupuncture function according to claim 1,2 or 3, it is characterized in that: described draw point limit base (8) comprises, right, under, left four elastic walls (17) connected in turn, upper and lower two elastic walls respectively there is a through hole (16), draw point body (15) is by upper and lower two through hole (16) longitudinally through in draw point limit base (8), and the external diameter and being less than that the aperture of two through hole (16) is greater than draw point body (15) expands the external diameter of bossing (14).
6. the device with anti-acupuncture function according to claim 5, is characterized in that: described elastic wall (17) is square.
7. the device with anti-acupuncture function according to claim 1,2 or 3, it is characterized in that: described draw point limit base has vertical through hole, draw point body is longitudinal through in draw point limit base by vertical through hole, the external diameter and being less than that the aperture of vertical through hole is greater than draw point body expands the external diameter of bossing, the distance that the distance between catch and draw point limit base is not less than draw point top and expands between bossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554915.1A CN105056342A (en) | 2015-09-02 | 2015-09-02 | Device with needling prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554915.1A CN105056342A (en) | 2015-09-02 | 2015-09-02 | Device with needling prevention function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105056342A true CN105056342A (en) | 2015-11-18 |
Family
ID=54485992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510554915.1A Pending CN105056342A (en) | 2015-09-02 | 2015-09-02 | Device with needling prevention function |
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| Country | Link |
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| CN (1) | CN105056342A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108065987A (en) * | 2016-11-14 | 2018-05-25 | 江苏阳普医疗科技有限公司 | A kind of safety bushing pin |
| CN109893713A (en) * | 2019-03-22 | 2019-06-18 | 江苏苏云医疗器材有限公司 | Anti- needle pierces indwelling needle assembly |
| CN111921039A (en) * | 2020-06-30 | 2020-11-13 | 江苏苏云医疗器材有限公司 | Needle-prick prevention indwelling needle assembly |
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| US20070129689A1 (en) * | 1997-08-20 | 2007-06-07 | B. Braun Melsungen Ag | Spring clip safety iv catheter |
| CN202078634U (en) * | 2011-05-26 | 2011-12-21 | 张秋 | Safety remaining needle |
| CN203169724U (en) * | 2013-01-29 | 2013-09-04 | 苏州林华医疗器械有限公司 | Disposable safe indwelling needle |
| CN203842115U (en) * | 2014-05-15 | 2014-09-24 | 李敏 | Safe remaining needle |
| CN204092724U (en) * | 2014-08-14 | 2015-01-14 | 孙军 | Venous detaining needle |
| DE102013216228A1 (en) * | 2013-08-15 | 2015-02-19 | B. Braun Melsungen Ag | Safety clip for a Seldinger cannula |
| CN204582151U (en) * | 2015-01-26 | 2015-08-26 | 山东新华安得医疗用品有限公司 | The anti-acupuncture needleless of card form connects venous detaining needle |
| CN205055049U (en) * | 2015-09-02 | 2016-03-02 | 山东新华安得医疗用品有限公司 | Device with prevent acupuncture function |
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2015
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Patent Citations (8)
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| US20070129689A1 (en) * | 1997-08-20 | 2007-06-07 | B. Braun Melsungen Ag | Spring clip safety iv catheter |
| CN202078634U (en) * | 2011-05-26 | 2011-12-21 | 张秋 | Safety remaining needle |
| CN203169724U (en) * | 2013-01-29 | 2013-09-04 | 苏州林华医疗器械有限公司 | Disposable safe indwelling needle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108065987A (en) * | 2016-11-14 | 2018-05-25 | 江苏阳普医疗科技有限公司 | A kind of safety bushing pin |
| CN108065987B (en) * | 2016-11-14 | 2023-10-31 | 江苏威茂医疗科技有限公司 | Safe type sleeve needle |
| CN109893713A (en) * | 2019-03-22 | 2019-06-18 | 江苏苏云医疗器材有限公司 | Anti- needle pierces indwelling needle assembly |
| CN109893713B (en) * | 2019-03-22 | 2023-11-14 | 江苏苏云医疗器材有限公司 | Needle-stick-preventing indwelling needle assembly |
| CN111921039A (en) * | 2020-06-30 | 2020-11-13 | 江苏苏云医疗器材有限公司 | Needle-prick prevention indwelling needle assembly |
| CN111921039B (en) * | 2020-06-30 | 2022-05-24 | 江苏苏云医疗器材有限公司 | Prevent that acupuncture keeps somewhere needle subassembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151118 |
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| RJ01 | Rejection of invention patent application after publication |