CN207545562U - A kind of medical needle with self-destruction Anti-stabbing function - Google Patents

Abstract

A kind of medical needle with self-destruction Anti-stabbing function of the utility model, including needle stand, self-destructor and the needle core for being arranged in needle stand, self-destructor includes receiving pipe, self-destruction switch and elastic component, and receiving pipe includes outer receiving pipe and interior receiving is managed, and interior receiving pipe is movably through in outer receiving pipe；Self-destruction switch is manipulated, elastic component can be started and accommodated in pipe needle core to be driven to bounce back to, while interior receiving pipe is pierced by from the rear end of outer receiving pipe, and accommodates pipe and is provided with that interior receiving is prevented to manage the anti-rebound structure sprung back forward.Compared with prior art, due to being provided with anti-rebound structure, interior receiving pipe can be locked to spring back forward after stretching out backwards, stretched out so as to which needle core front end be avoided to rebound from the front end of receiving pipe, eliminate the hidden danger stabbed medical staff and lead to infection.

Description

A kind of medical needle with self-destruction Anti-stabbing function

Technical field

The utility model is related to medical needle technical fields, and in particular to a kind of medical needle with self-destruction Anti-stabbing function.

Background technology

Venous detaining needle is also known as venous catheter needle, it is made of stainless needle body core, casing and plastics needle stand.It will during puncture Be pierced into blood vessel together with stainless needle body core and outer tube, into blood vessel after extract stainless needle body core out, soft casing is allowed to stay in blood It infuses in pipe.It is hose due to being retained in intravenous casing, avoids damage of the needle body to blood vessel, patient can be with needle Gentle activity.Venous detaining needle suitable for any position puncture, one-time puncture can continuously or interval multiple, more days use, subtract The pain that light patient punctures repeatedly alleviates the workload of nursing staff, clinically it is deep suffered from by shield welcome, save simultaneously A large amount of medical treatment and nursing manpower and materials, have great medical economics meaning.

Medical needle including venous detaining needle, lumbar puncture needle is widely used in infusing or take a blood sample, and is a kind of common Medical apparatus.In order to ensure during the infusion or blood drawing patient be not infected by bacterial and medical needle used after not by Malice recycles secondary use, leads to viral infection, health ministry regulation medical needle must be disposable.Simultaneously in order to prevent Medical staff is stabbed during the draw point in medical procedures or after processing use by draw point causes unexpected injury to be infected, Ask processing of unmaking to the syringe needle after use.

Existing medical needle is generally provided with self-destruction switch and the spring compressed on needle body, is also set in needle rear end portion It is equipped with the receiving pipe for needle core retraction.When needle is needed to unmake, self-destruction switch is triggered manually so that spring is released, spring is Needle core is pushed to retract in receiving pipe, so as to which needle core is accommodated in receiving pipe, the structure of medical needle is destroyed, reaches medical needle The purpose unmake.However, the receiving pipe of existing medical needle, because to house whole needle core, receiving length of tube must compare Needle core length will be grown, and long receiving pipe can cause medical staff's operation very inconvenient, increase medical and nursing work difficulty.Therefore it is Convenient for putting needle operation, applicant devises following not yet disclosed technology：Receiving pipe is set as outer receiving pipe and interior receiving is managed, Interior receiving pipe is movably threaded through in outer receiving pipe, and when spring pushes the needle core to bounce back in interior receiving pipe, interior receiving pipe is from outer The rear end of receiving pipe is pierced by, and is extended as umbrella handle, so as to house whole needle core.But there is new ask in the structure Topic, after needle core bounces back to receiving pipe, the rear end of interior receiving pipe can be repelled with outer receiving pipe collision, interior receiving pipe, lead to needle Core front end（That is tip）It is stretched out from the front end of receiving pipe, there is the very big hidden danger stabbed medical staff and lead to infection.

Utility model content

For the prior art there are above-mentioned technical problem, the utility model provides a kind of with the medical of self-destruction Anti-stabbing function Needle, the needle simple operation reduce medical staff's working strength, and with rear self-destructed function is used, can effectively eliminate needle core The security risk of medical staff is stabbed in rebound after retraction self-destruction.

To achieve the above object, the utility model provides following technical scheme：

A kind of medical needle with self-destruction Anti-stabbing function is provided, including needle stand, self-destructor and is arranged in the needle stand Needle core, the self-destructor include receiving pipe, self-destruction switch and elastic component, and the receiving pipe includes outer receiving pipe and interior receiving Pipe, interior receiving pipe are movably through in outer receiving pipe；The self-destruction switch is manipulated, the elastic component can be started to drive needle Core is bounced back in receiving pipe, while interior receiving pipe is pierced by from the rear end of outer receiving pipe, and is accommodated pipe and be provided with to prevent interior receipts Hold the anti-rebound structure that pipe is sprung back forward.

Wherein, which further includes the needle handle between needle stand and receiving pipe, the needle core Rear end be connected with solid needle, needle core and solid needle are arranged in needle handle, and the self-destruction switch is installed on the needle handle, described solid Needle is provided with card slot, and card slot is stated in the self-destruction switch card residence, and the elastic component is thrust spring, and the both ends of thrust spring are divided Needle handle and solid needle are not resisted, and the mobile self-destruction switch can discharge the solid needle, described solid under thrust spring effect Needle is bounced back to together with needle core in the receiving pipe.

Wherein, the anti-rebound structure includes the sliding guide column to cooperate and sliding guide groove, and sliding guide column is set to outer One of both receiving pipe and interior receiving pipe, sliding guide groove are set to the other of both outer receiving pipe and interior receiving pipe, The rear end of sliding guide groove turns to form incline bench along the radial direction of receiving pipe, and interior receiving pipe is pierced by from outer receiving pipe rear end In the process, sliding guide column along sliding guide groove revotating card, in incline bench, so as to prevent interior receiving pipe, move forward by rebound.

Wherein, the anti-rebound structure includes being set to the buckle of outer receiving pipe, and interior receiving pipe is pierced by pre- from outer receiving pipe If by the buckle clamping after length.

Wherein, Gu needle is provided with return flow line, the front end of return flow line is connected with needle core, and the rear end of return flow line is set Exhaust diaphragm and the fixed plug for fixing the exhaust diaphragm are equipped with, the fixed plug is connect with the solid needle.

Wherein, outer receiving pipe is provided with the abutting portion for pushing against interior receiving pipe, so that only under resilient element urges, ability Interior receiving pipe is enough made to move towards the rear.

Wherein, the needle stand is provided with main channel, and needle stand is provided with the casing connected with main channel, and needle core is arranged in main logical Road and casing, the front end of needle core can be stretched out from the front port of casing or retract in casing；It is equipped on needle stand to main logical Road carries out the fluid stopping switch of radial compression fluid stopping, and fluid stopping switch is connect with needle stand, and fluid stopping pushes down needle when switching radial compression fluid stopping Core is not by resilient element urges.

Wherein, the needle stand is provided with switch base, and the switch base is provided with through-hole, and the fluid stopping switch includes spiral Cap, briquetting and spool, the screw-cap are connected through a screw thread with the through-hole, and the briquetting is arranged in the through-hole, the valve Core is arranged in screw-cap and is fixedly connected with the briquetting, and screw-cap can be provided with direction with respect to valve core rotation, the screw-cap Internal protrusion, the top surface of the protrusion are abutted with the spool, and the bottom surface of the protrusion is abutted with the briquetting.

Wherein, which further includes sheath, and the sheath entangles described sleeve pipe, and the sheath is set It is equipped with the flank for blocking the self-destruction switch.

Wherein, the sheath is provided with clamping portion, and the needle handle is blocked in the clamping portion, so as to prevent the fluid stopping from switching When not compressing needle core, the needle handle is detached with the needle stand.

The beneficial effects of the utility model：

Compared with prior art, a kind of medical needle with self-destruction Anti-stabbing function of the utility model, since receiving is managed The interior receiving pipe being mutually socketed and receiving pipe are set as, when putting pipe since interior receiving pipe is inserted in the inside of outer receiving pipe, so The entire length of needle is shorter, is operated convenient for medical staff；When needle core bounces back self-destruction backward, interior receiving pipe is after outer receiving pipe End is pierced by, therefore whole needle core can be accommodated in the inside of receiving pipe.Furthermore due to being provided with anti-rebound structure, interior receiving pipe It can be locked to spring back forward after stretching out backwards, be stretched out so as to which needle core front end be avoided to rebound from the front end of receiving pipe, Eliminate the hidden danger stabbed medical staff and lead to infection.

Description of the drawings

Fig. 1 is a kind of stereogram of medical needle with self-destruction Anti-stabbing function in the utility model embodiment.

Fig. 2 is that a kind of medical needle with self-destruction Anti-stabbing function in the utility model embodiment removes the solid after sheath Figure.

Fig. 3 is that a kind of medical needle with self-destruction Anti-stabbing function in the utility model embodiment removes the section after sheath Figure.

Fig. 4 is that a kind of medical needle with self-destruction Anti-stabbing function in the utility model embodiment removes the structure after sheath Exploded view.

Fig. 5 is the structure diagram that pipe is accommodated outside the one of which in the utility model embodiment.

Fig. 6 is the structure diagram of another receiving pipe in the utility model embodiment.

Fig. 7 is the solid after a kind of medical needle self-destruction with self-destruction Anti-stabbing function in the utility model embodiment Figure.

Reference numeral：

Needle handle 1；

Self-destruction switch 2；

Thrust spring 3；

Needle core 4；

Gu needle 5, card slot 51, return flow line 52；

It is vented diaphragm 6, fixed plug 61；

Receiving pipe 7, sliding guide column 711, outer receiving pipe 72, sliding guide groove 721, incline bench 7211, supports interior receiving pipe 71 Tight portion 722, buckle 723；

Needle stand 8, casing seat 81, switch base 811, transfusion seat 82, infusion channel 821；

Casing 9；

Capsule pipe 10；

Fluid stopping switch 11, screw-cap 111, spool 112, briquetting 113；

Sheath 12, flank 121, clamping portion 122.

Specific embodiment

The utility model is described in detail below in conjunction with specific embodiment and attached drawing.

A kind of remaining needle with self-destruction Anti-stabbing function of the present embodiment, as shown in Figures 1 to 4, structure include receiving Pipe 7, needle handle 1, needle stand 8 and needle core 4, the rear end of needle core 4 is connected with solid needle 5, Gu needle 5 is arranged in needle handle 1, needle core 4 is worn Set on needle handle 1 and needle stand 8, Gu needle 5 is provided with return flow line 52, the front end of return flow line 52 is connected with needle core 4, return flow line 52 rear end is provided with exhaust diaphragm 6 and the fixed plug 61 for fixed exhaust diaphragm 6, and fixed plug 61 coordinates with solid needle 5 Connection, it is easy to assembly.Gu 5 sets of needle is useful for the thrust spring 3 that solid needle 5 is pushed to be bounced back to together with needle core 4 in receiving pipe, push away The both ends of power spring 3 are respectively held against needle handle 1 and solid needle 5.Needle handle 1 is equipped with self-destruction switch 2, Gu needle 5 is provided with card slot 51, Self-destruction switch 2 blocks card slot 51, presses clamping of 2 releasing of self-destruction switch to solid needle 5, Gu needle 5 can just be pushed away together with needle core 4 Power spring 3 pushes backward.

As shown in figure 3, needle stand 8 includes the casing seat 81 being connected with each other and transfusion seat 82, it is logical that transfusion seat 82 is provided with infusion Road 821,81 front end of casing seat are adhesively fixed with casing 9, and casing 9 is connected with infusion channel 821.Casing seat 81 and transfusion seat 82 One section of capsule pipe 10 is inside provided with, capsule pipe 10 is soft pipe, and capsule pipe 10 is accommodated in inside needle stand 8, one end of capsule pipe 10 and infusion Channel 821 connects, and the other end of capsule pipe 10 is connected with casing 9, and infusion channel 821, capsule pipe 10 and casing 9 form main channel.Needle Core 4 is arranged in main channel and casing 9, and the front end of needle core 4 can be stretched out from the front port of casing 9 or retract in casing 9.Needle The fluid stopping switch 11 that radial compression fluid stopping is carried out to main channel is installed, fluid stopping switch 11 is connect with needle stand 8, and fluid stopping is opened on seat 8 Capsule pipe 10 can be pushed down by closing 11, not pushed so as to push down needle core 4 indirectly by thrust spring 3, only released fluid stopping and switched 11 pairs of needles The extruding of core 4, thrust spring 3 can push solid needle 5 together with the retraction self-destruction of needle core 4.In the prior art, with self-destroying function Needle is all after manipulation self-destruction switch, just springs back self-destruction at once, this structure is in actual use in place of Shortcomings：It can go out Existing medical staff adjusts not yet removes needle-shaped state, and needle core results in the need for the trouble punctured again with regard to complete self-destruction.And this reality The needle of example is applied after self-destruction switch 2 is pressed, needle core 4 will not be pushed at once, can suitably be adjusted needle stand 8 at this time and be put to reach Needle core 4 is slowly withdrawn under needle optimum state again, when needle core 4 retreat to not by fluid stopping switch 11 compress after just can be by thrust spring 3 push retraction, and the front end of needle core 4 after patient far from can just bounce back, and when use is more convenient to operate, so as to improve safety Performance.

Specifically, as shown in Figure 3 and Figure 4, casing seat 81 is provided with switch base 811, switch base 811 is provided with along capsule pipe 10 Radial direction setting through-hole, be provided with external screw thread on the outside of through-hole；Fluid stopping switch 11 includes screw-cap 111,112 and of spool Briquetting 113, the inside of screw-cap 111 is offered is arranged in through-hole, spool 112 with the matched internal thread of external screw thread, briquetting 113 Be arranged in screw-cap 111 and be fixedly connected with briquetting 113, screw-cap 111 is provided with towards internal protrusion, raised top surface and Spool 112 abuts, and raised bottom surface is abutted with briquetting 113.When needing to compress capsule pipe 10, screw-cap 111 is rotated clockwise, Then the protrusion is pressed downward briquetting 113, so that briquetting 113 compresses capsule pipe 10；It needs to release pressure of the briquetting 113 to capsule pipe 10 When, screw-cap 111 is counterclockwise rotated, protrusion jacks up spool 112 upwards, and spool 112 drives briquetting 113 to move upwards, from And release the pressure to capsule pipe 10.If using other extruding propulsion modes other than screw propulsion mode, stroke is being promoted During stopping, it can generate suctioned blood because of the external force revocation of propelling extrusion and enter casing and form thrombus, and the present embodiment is set Screw propulsion fashion of extrusion when cancelling external force, retraction will not be generated, be generate positive pressure, do not spring back space, energy This blood canceling a performance is effectively avoided to occur to casing phenomenon.It is therefore preferable that the mode of this screw propulsion.

As shown in Figure 3-Figure 5, receiving pipe 7 includes outer receiving pipe 72 and interior receiving pipe 71, and interior receiving pipe 71 is movably worn Outside accommodate pipe 72 in, during self-destruction, Gu needle 5 bounces back backward together with needle core 4, needle core 4 can push it is interior accommodate pipe 71 from The rear end of outer receiving pipe 72 is pierced by, so that whole receiving pipe elongation, is all accommodated in whole needle core 4 inside for accommodating pipe.Wherein, Outer receiving pipe 72 is provided with the abutting portion 722 for radially pushing against interior receiving pipe 71, by abutting portion 722 and interior receiving pipe 71 Between level push against so that only under resilient element urges, interior receiving pipe 71 can be made to move towards the rear, interior receipts during assembling Hold pipe 71 to be pressed into outer receiving pipe 72, prevent from loosening, structure is more compact.Receiving pipe 7 is provided with to prevent interior receiving The anti-rebound structure that pipe 71 is sprung back forward.There are two types of modes for anti-rebound structure：The first as shown in Figure 4 and Figure 5, the anti-rebound knot Structure includes the sliding guide column 711 to cooperate and sliding guide groove 721, and sliding guide column 711 is set to interior receiving pipe 71, sliding guide groove 721 are set to the inside of outer receiving pipe 72, and the rear end of sliding guide groove 721 turns to form incline bench along the radial direction of receiving pipe 7 7211, during interior receiving pipe 71 is pierced by from 72 rear end of outer receiving pipe, sliding guide column 711 relies on the active force of thrust spring 3, from Dynamic rotate by a certain angle is stuck in incline bench 7211, and interior receiving pipe 71 can be prevented to spring back movement forward, slided in practice certainly Dynamic guide groove is readily modified as being arranged on interior receiving pipe, and sliding guide column is changed to be arranged on outer receiving pipe, also possible；Second as schemed Shown in 6, which includes being set to the buckle 723 of outer receiving pipe 72, and 723 free end of being buckled accommodates pipe 72 outwardly Inner inclination, for interior receiving pipe 71 after outer receiving pipe 72 is pierced by preset length, the front end of interior receiving pipe 71 can be snapped 723 tops Tightly, thus prevent it is interior receiving pipe 71 rebound.

In the present embodiment, as shown in Figure 1, the needle with self-destruction Anti-stabbing function further includes sheath 12, sheath 12 entangles Pipe 9, sheath 12 are provided with the flank 121 for blocking self-destruction switch 2, prevent medical staff from accidentally touching and press self-destruction switch 2.Sheath 12 Clamping portion 122 is provided with, needle handle 1 is blocked in clamping portion 122, when not compressing needle core 4 so as to prevent fluid stopping from switching 11, needle handle 1 and needle Seat 8 detaches, because in manufacture, screw-cap 111 is without compressing needle core 4, so sheath 12 can temporarily connect 1 He of needle handle Needle stand 8.

The operation principle of the present embodiment：In use（Details are not described herein for the Conventional procedures such as disinfection）, when needing to infuse When, the needle with self-destruction Anti-stabbing function is got out, pulls out sheath 12, rotates clockwise the screw-cap 111 of fluid stopping switch 11, band 113 downlink of dynamic pressure block and compression bag pipe 10, the channel at capsule pipe 10 are separated；Then it finds the blood vessel of patient accurately, needle handle 1 is pushed to make The blood vessel of patient is inserted into 4 front end of needle core, observes the return flow line 52 of solid needle 5 and has blood backflow to represent to insert blood vessel success （Since solid 5 rear end of needle is provided with exhaust diaphragm 6, which can discharge the gas in return flow line 52, blood It can smoothly be flowed at return flow line 52 from needle core 4）；Then needle handle 1 is detached with respect to transfusion seat 82 half, needle core 4 is made to retract to set Inside pipe 9, continue to push needle whole forward so that casing 9 is inserted into blood vessel, is then pressed self-destruction switch 2, is released to solid needle 5 clamping constraint, but the switch of fluid stopping at this time 11 still compresses needle core 4, so needle core 4 will not be bounced back by pushing.Then needle handle 1 Pull back, until needle core 4 retreat to not by fluid stopping switch 11 compress, under the action of thrust spring 3, Gu needle 5 is together with needle core 4 It moves backward, while interior receiving pipe 71 is pierced by from the rear end of outer receiving pipe 72, the receiving elongation of pipe 7 houses whole needle core 4, is formed such as Structure after self-destruction shown in Fig. 7.After interior receiving pipe 71 is retreated to predeterminated position, meeting after interior receiving pipe 71 stretches out backwards It is locked to spring back forward, prevents 4 front end of needle core from rebounding from the front end of receiving pipe 7 and stretch out, medical staff is stabbed in elimination With the hidden danger for leading to infection.The infusion apparatus of periphery is connected on transfusion seat 82 again later, rotates screw-cap 111, solution counterclockwise Except briquetting 113 is to the pressure of capsule pipe 10, you can normal infusion.In practice, it is this that receiving pipe 7 is set as two sections and is provided with The design of anti-rebound structure, can also apply the needle in other functions, not only apply in remaining needle field.

Finally it should be noted that above example is only to illustrate the technical solution of the utility model rather than to this reality With the limitation of novel protected range, although being explained in detail with reference to preferred embodiment to the utility model, this field it is general Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this The spirit and scope of utility model technical solution.

Claims (10)

1. a kind of medical needle with self-destruction Anti-stabbing function, it is characterized in that：Including needle stand and the needle core for being arranged in the needle stand, go back Including receiving pipe, self-destruction switch and elastic component, the receiving pipe includes outer receiving pipe and interior receiving is managed, and interior receiving pipe is movably It is through in outer receiving pipe；The self-destruction switch is manipulated, the elastic component can be started needle core to be driven to bounce back in receiving pipe, needle Core retraction pushes interior receiving pipe to be pierced by from the rear end of outer receiving pipe, and accommodates pipe and be provided with to prevent interior receiving pipe from outer receiving The anti-rebound structure that the rear end of pipe is sprung back forward after being pierced by.

2. a kind of medical needle with self-destruction Anti-stabbing function according to claim 1, it is characterized in that：The band self-destruction Anti-stabbing The needle of function further includes the needle handle between needle stand and receiving pipe, and the rear end of the needle core is connected with solid needle, needle core and Gu needle is arranged in needle handle, the self-destruction switch is installed on the needle handle, and the solid needle is provided with card slot, the self-destruction switch Block the card slot, the elastic component is thrust spring, and the both ends of thrust spring are respectively held against needle handle and solid needle, it is mobile described in Self-destruction switch can discharge the solid needle, and the solid needle bounces back to the receiving together with needle core and manages under thrust spring effect It is interior.

3. a kind of medical needle with self-destruction Anti-stabbing function according to claim 2, it is characterized in that：Gu needle is provided with back Circulation road, the front end of return flow line are connected with needle core, and the rear end of return flow line is provided with exhaust diaphragm and for described in fixation The fixed plug of diaphragm is vented, the fixed plug is connect with the solid needle.

4. a kind of medical needle with self-destruction Anti-stabbing function according to claim 1, it is characterized in that：The anti-rebound structure Sliding guide column and sliding guide groove including mutual cooperation, sliding guide column are set to one in both outer receiving pipe and interior receiving pipe Person, sliding guide groove are set to the other of both outer receiving pipe and interior receiving pipe, the rear end edge receiving pipe of sliding guide groove Radial direction turns to form incline bench, and during interior receiving pipe is pierced by from outer receiving pipe rear end, sliding guide column is along sliding guide groove Revotating card is in incline bench so as to prevent interior receiving pipe rebound movement forward.

5. a kind of medical needle with self-destruction Anti-stabbing function according to claim 1, it is characterized in that：The anti-rebound structure Buckle including being set to outer receiving pipe, interior receiving pipe are pierced by after preset length from outer receiving pipe by the buckle clamping.

6. a kind of medical needle with self-destruction Anti-stabbing function according to claim 1, it is characterized in that：Outer receiving pipe is provided with For pushing against the abutting portion of interior receiving pipe, so that only under resilient element urges, interior receiving pipe can be made to move towards the rear.

7. a kind of medical needle with self-destruction Anti-stabbing function according to claim 2, it is characterized in that：The needle stand is provided with Main channel, needle stand are provided with the casing connected with main channel, and needle core is arranged in main channel and casing, and the front end of needle core can be from set The front port of pipe is stretched out or is retracted in casing；It is equipped on needle stand and the fluid stopping of main channel progress radial compression fluid stopping is opened It closes, fluid stopping switch is connect with needle stand, and fluid stopping pushes down needle core not by resilient element urges when switching radial compression fluid stopping.

8. a kind of medical needle with self-destruction Anti-stabbing function according to claim 7, it is characterized in that：The needle stand is provided with Switch base, the switch base are provided with through-hole, and the fluid stopping switch includes screw-cap, briquetting and spool, the screw-cap and institute It states through-hole to be connected through a screw thread, the briquetting is arranged in the through-hole, and the spool is arranged in screw-cap and with the briquetting consolidates Fixed connection, screw-cap can be with respect to valve core rotations, and the screw-cap is provided with the protrusion inside, the top surface of the protrusion and institute Spool abutting is stated, the bottom surface of the protrusion is abutted with the briquetting.

9. a kind of medical needle with self-destruction Anti-stabbing function according to claim 7, it is characterized in that：The band self-destruction Anti-stabbing The needle of function further includes sheath, and the sheath entangles the needle core front end, and the sheath, which is provided with, blocks the self-destruction switch Flank.

10. a kind of medical needle with self-destruction Anti-stabbing function according to claim 9, it is characterized in that：The sheath setting There is clamping portion, the needle handle is blocked in the clamping portion, when not compressing needle core so as to prevent the fluid stopping from switching, the needle handle and institute State needle stand separation.