CN108744141B

CN108744141B - Automatic needle pulling assembly

Info

Publication number: CN108744141B
Application number: CN201810197666.9A
Authority: CN
Inventors: 鲍雪花
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-11
Filing date: 2018-03-11
Publication date: 2020-05-29
Anticipated expiration: 2038-03-11
Also published as: CN108744141A

Abstract

The invention discloses an automatic needle pulling assembly, which has the technical scheme that: the wrist-mounted needle comprises a needle head, wherein a clamping piece is arranged on the needle head, the needle head comprises a main frame body, a binding belt is connected to the main frame body, one side of the main frame body is a needle pulling surface, and the binding belt is bound on a wrist; the clamping piece is provided with a clamping rod, the needle pulling surface is provided with a chute, two driving motors are arranged in the chute, the main frame body is provided with a driving rod, the driving rod is provided with two sections of thread sections, the rotating directions of the two sections of thread sections are opposite, the driving rod penetrates into the chute, the thread sections are positioned in the chute, the two sections of thread sections are respectively in threaded connection with the two driving motors, and a motor shaft of each driving motor is provided with a clamping wheel; a battery and a control switch are arranged in the main frame body; the needle pulling surface is provided with a triggering part, the main frame body is provided with a rotating groove, a rotating arm is hinged in the rotating groove, the end part of the rotating arm is provided with a placing part, and a spring is arranged in the rotating groove. The operation of pulling out the needle and pasting the band-aid can be accomplished simultaneously, and the medical experience of the patient can be improved.

Description

Automatic needle pulling assembly

Technical Field

The invention relates to medical needle pulling equipment, in particular to an automatic needle pulling assembly.

Background

During the medical rescue, a hanging drop is usually involved, and a common drop injection head, as shown in fig. 6, has a structure including a needle head a on which a holding sheet b is arranged.

Because the whole infusion time is long, and medical staff can not monitor whether the infusion of a patient is already dripped at any time, when the liquid in an infusion bottle is quickly dripped, if the patient can not find the medical staff once, no accompanying of family people exists around the patient, the mood of the patient can be very irritated at the moment, if the patient chooses to unplug the needle by himself, the patient can only unplug the needle by using another hand without hanging the infusion, although when the infusion is hung at present, a wound plaster is arranged at the position of a needle eye, but when the infusion is hung, the needle is still below the wound plaster, and the patient can necessarily perform the following process when the patient himself unplugs the needle: the needle head is pulled out from the hand of the patient, blood flows out from the space between the adhesive bandage and the needle insertion opening, the patient puts down the needle head and presses the adhesive bandage with the hand, and a great amount of blood necessarily flows out in the process.

After extracting the syringe needle, patient usually can press the needle pricking mouth through another hand of not hanging the bit, if the mouth of this in-process receives the kneading, just can prick near the needle mouth and will appear red and swollen, patient's medical experience is relatively poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an automatic needle pulling assembly which can simultaneously complete the work of pulling a needle and pasting a wound plaster and is beneficial to improving the medical experience of a patient.

The technical purpose of the invention is realized by the following technical scheme: an automatic needle pulling assembly comprises a needle head, wherein a clamping piece is arranged on the needle head, the automatic needle pulling assembly comprises a main frame body, a binding belt is connected to the main frame body, a needle pulling surface is arranged on one side of the main frame body, the binding belt is bound to a wrist, and the needle pulling surface is right opposite to one side of the wrist;

the clamping piece is provided with a clamping rod, the needle pulling surface is provided with a chute, two driving motors are arranged in the chute, the main frame body is provided with a driving rod, the driving rod is provided with two sections of thread sections, the rotating directions of the two sections of thread sections are opposite, the driving rod penetrates through the chute, the thread sections are positioned in the chute, the two sections of thread sections are respectively in threaded connection with the two driving motors, a motor shaft of each driving motor is provided with a clamping wheel, and the two clamping wheels are used for clamping the clamping rod;

a battery and a control switch are arranged in the main frame body, the battery supplies power to the driving motor, and the control switch is used for controlling the power on and off between the battery and the driving motor;

the needle pulling surface is provided with a triggering part, the main frame body is provided with a rotating groove, a rotating arm is hinged in the rotating groove, the end part of the rotating arm is provided with a placing part for placing a wound plaster, and a spring is arranged in the rotating groove and used for applying elasticity to the rotating arm;

the clamping piece contacts the triggering part, the rotating arm is under the action of the elastic force of the spring, and the placing part is pressed against the wrist.

According to the technical scheme, the binding belt is utilized to fix the main frame body on the wrist in advance, the adhesive bandage is placed on the placing part, when a needle needs to be pulled out, the clamping piece rotates and tilts, the main frame body and the binding belt are pushed to one side of the clamping piece together and rotate the driving rod until the two clamping wheels are respectively positioned at two sides of the clamping rod, the threaded section on the driving rod can drive the two driving motors and the clamping wheels to be close to each other until the wheel surfaces of the two clamping wheels are abutted and clamped with the outer side walls of the clamping rod, at the moment, the control switch is pressed, the battery can provide electric energy for the driving motors, the driving motors drive the clamping wheels to rotate, the steering directions of the two clamping wheels are opposite, and the clamping wheels can pull the clamping rod and separate the needle head from the wrist of a patient; meanwhile, the clamping piece can trigger the triggering part, the triggering part triggers the rotating arm, the rotating arm is under the elastic action of the spring, and the wound plaster on the placing part can be directly pressed to the needle inserting position of the needle head; the whole action is rapid, the actions of pulling the needle and attaching the adhesive bandage are continuously completed, and after the needle pulling is completed, a patient can lie on the chair and sit still for several minutes, the needle pulling assembly and the adhesive bandage can be detached, and the medical experience of the patient is greatly improved.

Preferably, be equipped with the hole of sliding on the holding piece, the holding rod slides and locates in the hole of sliding, the drill way department in hole of sliding is equipped with first holding ring, the tip of holding rod is equipped with the second holding ring, first holding ring offsets with the second holding ring to the restriction holding rod continues to slide outward toward the hole of sliding.

Through the technical scheme, when the clamping rods are in the transportation process or are not used, the clamping rods can slide into the sliding holes, so that the area occupied by the clamping rods is reduced; when the clamping rod needs to be used, the clamping rod can be pulled out, and the first positioning ring abuts against the second positioning ring, so that the clamping rod can be limited from continuously sliding out; the use is convenient.

Preferably, the trigger part comprises a convex block positioned on the needle pulling surface, a trigger groove and a trigger channel are arranged on the convex block, the trigger groove is communicated with the inside of the trigger channel, a trigger rod is arranged in the trigger channel in a sliding manner, a trigger block is arranged in the trigger groove in a sliding manner, and a first inclined plane capable of abutting against the clamping piece is arranged at the end part of the trigger block protruding out of the trigger groove;

a second inclined plane is arranged at the end part of the trigger block, which is far away from the first inclined plane, a third inclined plane used for abutting against the second inclined plane is arranged at the end part of the trigger rod, which is close to the trigger block, and the end part of the trigger rod, which is far away from the third inclined plane, is a release end;

the end part of the rotating arm, which is far away from the placing part, is provided with a first magnetic force part, and the wall of the rotating groove is provided with a second magnetic force part which can be magnetically attracted with the first magnetic force part;

the clamping piece extrudes the first inclined plane to drive the end part of the contact end, deviating from the placing part, of the rotating arm to abut against, and the first magnetic force part is separated from the second magnetic force part.

Through the technical scheme, when the needle does not need to be pulled out, the first magnetic force part and the second magnetic force part are mutually attracted by magnetic force, the spring is compressed, and the placing part on the rotating arm is positioned on one side far away from the wrist of the patient; when the needle is pulled out through the clamping wheel, the clamping piece can be directly contacted with the first inclined plane of the trigger block, the trigger block slides along the trigger groove, the second inclined plane at the other end of the trigger block can be extruded with the third inclined plane, the trigger rod is further pushed to move along the trigger channel, the end part of the trigger rod, which is far away from the third inclined plane, can directly apply force to the release end, the first magnetic force part and the second magnetic force part are separated from each other, and the spring elasticity can push the placing part of the rotating arm to rotate towards the wrist direction of a patient; the process is smooth and rapid; in addition, the main frame body and the internal assembly can be repeatedly used after being sterilized, and only force is applied to the placing part, so that the first magnetic force part and the second magnetic force part are attracted by magnetic force, the trigger rod and the trigger block are moved and reset, and the whole component can be used for the second time.

Preferably, the protruding block is provided with a through groove for the clamping piece to pass through, and the trigger block protrudes out of the wall of the through groove.

Through above-mentioned technical scheme, two relative cell walls that run through the groove can inject the relative position of clamping piece, guarantee that the clamping piece can accurately contradict with the second inclined plane of trigger block, help promoting the action sensitivity of whole needle subassembly of pulling out.

Preferably, the outer wheel surface of the clamping wheel is provided with a friction surface.

Through above-mentioned technical scheme, the frictional force between centre gripping wheel outer wheel face and the supporting rod can be promoted by a wide margin to the friction surface, further promotes the efficiency of pulling out the needle.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic side view of the first embodiment in partial cross-section;

FIG. 3 is a rear partial sectional view of the first embodiment;

FIG. 4 is a rear partial sectional view of the second embodiment;

FIG. 5 is a side partial sectional view of the second embodiment;

fig. 6 is a schematic diagram of a conventional drop ejection head.

Reference numerals: a. a needle head; b. a clamping piece; 1. a main frame body; 2. a binding band; 3. pulling the needle surface; 4. a clamping rod; 5. a chute; 6. a drive motor; 7. a drive rod; 8. a threaded segment; 9. a clamping wheel; 10. a trigger section; 11. a bump; 12. a trigger slot; 13. triggering a channel; 14. a trigger lever; 15. a trigger block; 16. a rotating groove; 17. a rotating arm; 18. a placement section; 19. a spring; 20. a sliding hole; 21. a first positioning ring; 22. a second positioning ring; 23. a first inclined plane; 24. a second inclined plane; 25. a third inclined plane; 26. a release end; 27. a first magnetic force part; 28. a second magnetic force part; 29. through the slot.

Detailed Description

The present invention is described in further detail below with reference to figures 1-5.

The utility model provides an automatic draw out needle subassembly, including traditional drip injection head, this drip injection head includes syringe needle a, be equipped with holding piece b on the syringe needle a, be equipped with slide opening 20 on the holding piece b, slide opening 20's drill way orientation is opposite with syringe needle a's most advanced direction, be provided with supporting rod 4 in slide opening 20, slide opening 20's drill way play is equipped with first holding ring 21, the tip of supporting rod 4 is equipped with second holding ring 22, first holding ring 21 offsets with second holding ring 22, continue to slide toward slide opening 20 outward with restriction holding rod 4.

The wrist binding device further comprises a main frame body 1, wherein the main frame body 1 is connected with a binding belt 2, one side of the main frame body 1 is a needle pulling surface 3, and when the binding belt 2 is bound on a wrist, the needle pulling surface 3 is right opposite to one side of the wrist; the needle pulling device is characterized in that a sliding groove 5 is formed in the needle pulling surface 3, two driving motors 6 are arranged in the sliding groove 5, a driving rod 7 is arranged on the main frame body 1, two thread sections 8 are arranged on the driving rod 7, the rotating directions of the two thread sections 8 are opposite, the driving rod 7 penetrates into the sliding groove 5, the thread sections 8 are located in the sliding groove 5, the two thread sections 8 are respectively in threaded connection with the two driving motors 6, a clamping wheel 9 is arranged on a motor shaft of each driving motor 6, a friction surface exists on an outer wheel surface of each clamping wheel 9, and the two clamping wheels 9 are used for clamping the clamping rod 4. The main frame body 1 is provided with a rotating groove 16, a rotating arm 17 is hinged in the rotating groove 16, a placing part 18 for placing a wound dressing is arranged at the end part of the rotating arm 17, the placing part 18 is positioned at one side of the tip end of the needle head a, a spring 19 is arranged in the rotating groove 16, and the spring 19 is used for applying elasticity to the rotating arm 17.

The needle-pulling surface 3 is provided with a trigger part 10, the clamping piece b contacts the trigger part 10, the rotating arm 17 receives the elastic force of the spring 19, and the placing part 18 is pressed against the wrist position. The trigger part 10 comprises a projection 11 positioned on the needle pulling surface 3, the projection 11 is provided with a through groove 29 for the clamping piece b to pass through, and the trigger block 15 protrudes out of the groove wall of the through groove 29. The lug 11 is provided with a trigger groove 12 and a trigger channel 13, the trigger groove 12 is communicated with the interior of the trigger channel 13, a trigger rod 14 is arranged in the trigger channel 13 in a sliding manner, a trigger block 15 is arranged in the trigger groove 12 in a sliding manner, and the end part of the trigger block 15 protruding out of the trigger groove 12 is provided with a first inclined plane 23 capable of abutting against the clamping piece b; a second inclined plane 24 is arranged at the end part of the trigger block 15 departing from the first inclined plane 23, a third inclined plane 25 used for abutting against the second inclined plane 24 is arranged at the end part of the trigger rod 14 close to the trigger block 15, and a release end 26 is arranged at the end part of the trigger rod 14 departing from the third inclined plane 25; a first magnetic force part 27 is arranged at the end part of the rotating arm 17 departing from the placing part 18, and a second magnetic force part 28 which can be magnetically attracted with the first magnetic force part 27 is arranged on the groove wall of the rotating groove 16; the clamping piece b presses the first inclined plane 23 to drive the contact end to abut against the end of the rotating arm 17 away from the placing part 18, and the first magnetic part 27 is separated from the second magnetic part 28.

The main frame body 1 is internally provided with a battery and a control switch (not shown in the figure), wherein the battery can be a button battery or a lithium battery, the control switch can be arranged on the outer side wall of the main frame body 1, and the battery, the control switch and the driving motor can be electrically connected. The battery supplies power to the driving motor 6, the control switch is used for controlling the power on and off between the battery and the driving motor 6,

in the process of actual use, the water-soluble paint,

the main frame body 1 is fixed on a wrist in advance by utilizing the binding belt 2, the wound plaster is placed on the placing part 18, when a needle needs to be pulled out, the clamping piece b rotates and tilts, the clamping piece b stands on the wrist of a patient, the main frame body 1 and the binding belt 2 are pushed to one side of the clamping piece b together until the two clamping wheels 9 are respectively positioned at two sides of the clamping rod 4, the driving rod 7 rotates, the threaded section 8 on the driving rod 7 can drive the two driving motors 6 and the clamping wheels 9 to mutually approach until the wheel surfaces of the two clamping wheels 9 are abutted and clamped with the outer side walls of the clamping rod 4, at the moment, the control switch is pressed, the battery can provide electric energy for the driving motors 6, the driving motors 6 drive the clamping wheels 9 to rotate, the steering directions of the two clamping wheels 9 are opposite, and the clamping wheels 9 can pull the clamping rod 4 and separate the; meanwhile, the clamping piece b slides into the through groove 29, the clamping piece b abuts against the first inclined plane 23 of the trigger block 15 and extrudes the whole trigger block 15, the trigger block 15 of the trigger block 15 slides along the trigger groove 12, the second inclined plane 24 at the other end of the trigger block 15 can extrude with the third inclined plane 25, the trigger rod 14 is further pushed to move along the trigger channel 13, the end part of the trigger rod 14, which is far away from the third inclined plane 25, can directly apply force to the release end 26, the first magnetic part 27 is separated from the second magnetic part 28, the elastic force of the spring 19 can push the placing part 18 of the rotating arm 17 to rotate towards the wrist of the patient, and the wound plaster on the placing part 18 can be directly pasted on the wrist of the patient.

During recycling, only the reverse rotating force of the rotating arm 17 needs to be applied, the spring 19 is pressed, the first magnetic part 27 and the second magnetic part 28 attract each other and attract each other, and the trigger rod 14 and the trigger block 15 return to the original position.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. The utility model provides an automatic needle subassembly of pulling out, includes syringe needle (a), be equipped with clamping piece (b) on syringe needle (a), characterized by: the wrist binding device comprises a main frame body (1), wherein a binding belt (2) is connected to the main frame body (1), a needle pulling surface (3) is arranged on one side of the main frame body (1), the binding belt (2) is bound to a wrist, and the needle pulling surface (3) is right opposite to one side of the wrist;

the needle pulling device is characterized in that a clamping rod (4) is arranged on the clamping piece (b), a sliding groove (5) is formed in the needle pulling surface (3), two driving motors (6) are arranged in the sliding groove (5), a driving rod (7) is arranged on the main frame body (1), two thread sections (8) are arranged on the driving rod (7), the rotating directions of the two thread sections (8) are opposite, the driving rod (7) penetrates through the sliding groove (5), the two thread sections (8) are both located in the sliding groove (5), the two thread sections (8) are respectively in threaded connection with the two driving motors (6), a clamping wheel (9) is arranged on a motor shaft of each driving motor (6), and the two clamping wheels (9) are used for clamping the clamping rod (4);

a battery and a control switch are arranged in the main frame body (1), the battery supplies power to the driving motor (6), and the control switch is used for controlling the on-off of the battery and the driving motor (6);

the needle pulling face (3) is provided with a triggering portion (10), the main frame body (1) is provided with a rotating groove (16), a rotating arm (17) is hinged in the rotating groove (16), the end portion of the rotating arm (17) is provided with a placing portion (18) for placing a wound dressing, a spring (19) is arranged in the rotating groove (16), and the spring (19) is used for applying elasticity to the rotating arm (17);

the clamping piece (b) contacts the trigger part (10), the rotating arm (17) is under the elastic action of the spring (19), and the placing part (18) is pressed against the wrist position.

2. The automatic needle-extracting assembly as claimed in claim 1, wherein: be equipped with on supporting piece (b) and slide hole (20), supporting rod (4) slide and locate in sliding hole (20), the drill way department in sliding hole (20) is equipped with first holding ring (21), the tip of supporting rod (4) is equipped with second holding ring (22), first holding ring (21) offset with second holding ring (22) to restriction supporting rod (4) continue to slide outward toward sliding hole (20).

3. The automatic needle-extracting assembly as claimed in claim 1, wherein: the trigger part (10) comprises a convex block (11) positioned on the needle pulling surface (3), a trigger groove (12) and a trigger channel (13) are arranged on the convex block (11), the trigger groove (12) is communicated with the interior of the trigger channel (13), a trigger rod (14) is arranged in the trigger channel (13) in a sliding manner, a trigger block (15) is arranged in the trigger groove (12) in a sliding manner, and a first inclined plane (23) which can abut against the clamping piece (b) is arranged at the end part of the trigger block (15) protruding out of the trigger groove (12);

a second inclined plane (24) is arranged at the end part of the trigger block (15) departing from the first inclined plane (23), a third inclined plane (25) used for abutting against the second inclined plane (24) is arranged at the end part of the trigger rod (14) close to the trigger block (15), and a release end (26) is arranged at the end part of the trigger rod (14) departing from the third inclined plane (25);

a first magnetic force part (27) is arranged at the end part of the rotating arm (17) departing from the placing part (18), and a second magnetic force part (28) which can be magnetically attracted with the first magnetic force part (27) is arranged on the wall of the rotating groove (16);

the clamping piece (b) presses the first inclined plane (23) to drive the contact end to abut against the end part of the rotating arm (17) departing from the placing part (18), and the first magnetic force part (27) is separated from the second magnetic force part (28).

4. The automatic needle extracting assembly as claimed in claim 3, wherein: the convex block (11) is provided with a through groove (29) for the clamping sheet (b) to pass through, and the trigger block (15) protrudes out of the groove wall of the through groove (29).

5. The automatic needle-extracting assembly as claimed in claim 1, wherein: and a friction surface is arranged on the outer wheel surface of the clamping wheel (9).