CN219439367U - Improved nerve blocking needle - Google Patents

Abstract

The utility model discloses an improved nerve blocking needle, which relates to the technical field of blocking needles, and comprises a blocking needle head, wherein a through groove is formed in the blocking needle head, a needle core is arranged in the through groove, a connecting rod is fixedly arranged at one end of the needle core, and a sealing piston is fixedly arranged at the outer side of the connecting rod and at one end of the needle core, and the utility model has the beneficial effects that: through sealed piston, screw cap, external screw thread, joint and through-hole cooperation of dosing, after reaching the assigned position through the needle core to patient skin puncture in the use, we only need rotate the screw cap and make it separate with external screw thread and pull the connecting rod again can make the inside that the needle core was taken in logical groove, simultaneously after the inside that the needle core was taken in logical groove through-hole with the joint cooperation of dosing, alright through the joint of dosing to the injection medicine in the needle core, need not to extract the needle core from blocking the syringe needle in, avoid appearing blood reflux and lead to blocking the circumstances that the syringe needle outside pollutes to appear, the practicality is stronger.

Description

Improved nerve blocking needle

Technical Field

The utility model relates to the technical field of blocking needles, in particular to an improved nerve blocking needle.

Background

In the field of disease diagnosis and treatment, nerve blocking needles are widely used for treating hemiplegia, sensory disorders of the body, joint pain and other diseases, and in addition, when peripheral nerve blocking anesthesia is implemented, the nerve blocking needles can also be used for accurately determining the anesthesia position. The blocking needle under the ultrasonic guidance can clearly distinguish the positions of blood vessels, nerves, muscle tissues and puncture needles, directly block the nerves under the visual condition, is beneficial to observing the peripheral structures of the nerves and dynamically observing the spreading condition of gunpowder, improves the accuracy and success rate of nerve blocking, and reduces the damage of blood vessels and nerves related to operation.

According to the application number 202122126629.9, an improved nerve blocking needle is provided, wherein when the nerve blocking needle is used, firstly, the needle end of the inclined plane needle tube type needle core is pricked into the skin of a patient, when the inclined plane needle tube type needle core is at a distance from a nerve, the limiting block is detached from the limiting piece, so that the limiting block is pulled out, the limiting block moves to pull the inclined plane needle tube type needle core out of the blocking needle, at the moment, the blocking needle is used for continuing to advance, after the blocking needle is pricked into a corresponding position, the valve assembly is closed, and anesthetic is injected from the inside of the injection tube, and because the design of the valve assembly enables the anesthetic to enter the appointed position from the needle head position of the blocking needle, so that anesthesia is completed.

However, the nerve blocking needle has certain defects when in use, the device needs to pull out the needle core after puncture is used, the interior of the blocking needle is communicated with the outside before the valve component is not closed after the needle core is pulled out, the condition that blood flows back and out easily occurs, the blocking needle is polluted, the condition of cross infection can occur due to slight carelessness, in addition, the needle core is exposed after the needle core is pulled out, medical staff is scratched carelessly, the condition of cross infection also occurs, and the device is inconvenient to use.

Disclosure of Invention

In view of the shortcomings of the prior art, the present utility model provides an improved nerve block needle that solves the problems set forth in the background art above.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a nerve block needle of improvement, includes the block syringe needle, logical groove has been seted up to the inside of block syringe needle, logical inslot's internally mounted has the nook closing member, the one end fixed mounting of nook closing member has the connecting rod, the outside of connecting rod just is located the one end fixed mounting of nook closing member and has sealed piston, the one end fixed mounting of block syringe needle has a mounting cylinder, the connecting rod runs through the inside of mounting cylinder, the mounting groove has been seted up to the inside of connecting rod, two fixture blocks of inside movable mounting of mounting groove, the bottom fixed mounting of fixture block has the butt plate, the inside of mounting groove is provided with the spring, the draw-in groove has been seted up to the inside of mounting cylinder, fixture block and draw-in groove cooperation, the screw cap is installed in the one end rotation of connecting rod, the external screw thread has been seted up in the outside of mounting cylinder, screw cap and external screw thread cooperation, the top of block syringe needle is provided with the joint of dosing, the through-hole has been seted up at the top of logical groove, the through-hole cooperates with the joint of dosing.

Preferably, a nerve stimulator lead is installed in the through hole.

Preferably, the inside of retarding syringe needle one side is offered and is connected with connecting rod complex hole, the inside of installation section of thick bamboo is offered and is connected with the connecting rod cooperation is run through, connecting rod and installation section of thick bamboo swing joint.

Preferably, the fixture block is movably connected with the connecting rod, the retaining plate is movably connected with the mounting groove, and an inclined guide angle is formed in one side of the fixture block.

Preferably, an inclined surface guide angle matched with the needle core is formed on the outer side of one end of the blocking needle head.

Preferably, the sealing piston is movably connected with the through groove.

The utility model provides an improved nerve block needle, which has the following beneficial effects:

1. this neural blocking needle of improvement, through sealed piston, screw cap, external screw thread, joint and the through-hole cooperation of dosing, after we reacing the assigned position through the needle skin puncture to patient in the use, we only need rotate the screw cap and make it separate with external screw thread and pull the connecting rod again can make the inside that the needle core was taken in logical groove, simultaneously after the inside that the needle core was taken in logical groove the through-hole with joint cooperation of dosing, alright be through the joint of dosing in to the needle core in inject the medicine, need not to extract the needle core from blocking in the syringe needle, avoid appearing blood reflux and lead to blocking the circumstances that the needle outside pollutes to appear, the practicality is stronger.

2. This neural blocking needle of improvement, through connecting rod, mounting cylinder, mounting groove, fixture block, butt plate, spring and draw-in groove cooperation, after we pulling the connecting rod with the case that the needle core is taken in logical inslot portion, the spring can reset and kick-back promotes butt plate and fixture block then, alright make the fixture block card go into the draw-in groove, then fix connecting rod and needle core, ensure that the needle core can not leak, can avoid medical personnel to appear by the condition that cross infection appears by the fish tail then, use safelyr.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the needle retraction of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

FIG. 4 is a retracted cross-sectional view of the needle of the present utility model;

FIG. 5 is an enlarged view of the utility model at A in FIG. 3;

fig. 6 is an enlarged view of the utility model at B in fig. 4.

In the figure: 1. retarding the needle; 2. a through groove; 3. a needle core; 4. a sealing piston; 5. a connecting rod; 6. a mounting cylinder; 7. a mounting groove; 8. a clamping block; 9. a retaining plate; 10. a spring; 11. a clamping groove; 12. a threaded cap; 13. an external thread; 14. a dosing tab; 15. a through hole; 16. a nerve stimulator lead.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 6, the present utility model provides a technical solution: an improved nerve blocking needle comprises a blocking needle head 1, a through groove 2 is formed in the blocking needle head 1, a needle core 3 is arranged in the through groove 2, an inclined surface guide angle matched with the needle core 3 is formed in the outer side of one end of the blocking needle head 1, a connecting rod 5 is fixedly arranged at one end of the needle core 3, a sealing piston 4 is fixedly arranged at one end of the outer side of the connecting rod 5 and positioned at the needle core 3, the sealing piston 4 is movably connected with the through groove 2, the sealing piston 4 mainly plays a role of improving the tightness of the connection between the needle core 3 and the through groove 2, a mounting cylinder 6 is fixedly arranged at one end of the blocking needle head 1, the connecting rod 5 penetrates through the mounting cylinder 6, a hole matched with the connecting rod 5 is formed in the inner side of the blocking needle head 1, a hole matched with the connecting rod 5 is formed in the mounting cylinder 6, the connecting rod 5 is movably connected with the mounting cylinder 6, the screw cap 12 is installed in the rotation of the one end of connecting rod 5, external screw thread 13 has been seted up in the outside of installation section of thick bamboo 6, screw cap 12 and external screw thread 13 cooperation, the main role of screw cap 12 is used for spacing connecting rod 5 and needle core 3 through with external screw thread 13 threaded connection, avoid the inside of needle core 3 withdrawal logical groove 2 in the puncture process, rotate screw cap 12 and make it separate with external screw thread 13 after the puncture is accomplished and can unlock connecting rod 5 and needle core 3, then alright with the inside of needle core 3 income logical groove 2, the top of retarding syringe needle 1 is provided with and doses and connects 14, through-hole 15 has been seted up at the top of logical groove 2, through-hole 15 and dosing connect 14 cooperation, the one end of dosing connect 14 is connected with the injection tube, dosing connects 14 and link up with the inside of through-hole 15 and needle core 3.

The inside of connecting rod 5 has been seted up mounting groove 7, two fixture blocks 8 have been seted up to the inside movable mounting of mounting groove 7, the slope guide angle has been seted up to one side of fixture block 8, fixture block 8 and connecting rod 5 swing joint, the bottom fixed mounting of fixture block 8 has the butt strap 9, butt strap 9 and mounting groove 7 swing joint, the inside of mounting groove 7 is provided with spring 10, draw-in groove 11 has been seted up to the inside of installation section of thick bamboo 6, fixture block 8 and draw-in groove 11 cooperation, the internally mounted of through-hole 15 has nerve stimulator wire 16, wherein the shape of connecting rod 5 is the bar square pole, the main effect of this shape is used for spacing to the needle core 3, then can ensure that through-hole 15 and joint 14 of dosing can accurately cooperate after taking into the needle core 3 inside logical groove 2, simultaneously also play spacing effect to two fixture blocks 8, can effectively ensure that fixture block 8 can block into inside to connecting rod 5 and needle core 3 fixed spacing, it is to mention the effect of nerve stimulator wire 16 in this application number is 202122126629.9 and the same as "nerve stimulator wire" use and the application principle.

In summary, when the improved nerve blocking needle is used, the skin of a patient is pierced through the needle core 3, the blocking needle head 1 and the nerve blocking needle head penetrate into the skin of the patient together, when the nerve blocking needle head is pierced into the skin and a certain distance from the nerve, the thread cap 12 is rotated to be separated from the external thread 13, the thread cap 12 and the connecting rod 5 can be pulled finally, the needle core 3 is driven to move to the inside of the through groove 2 through the connecting rod 5, the connecting rod 5 moves while the clamping block 8 slides in the mounting cylinder 6 until the clamping block 8 moves to the middle part of the clamping groove 11, the spring 10 rebounds to push the two retaining plates 9 and the clamping block 8, the clamping block 8 can be clamped into the clamping groove 11, meanwhile, the through hole 15 at the top of the needle core 3 is simultaneously displaced to the lower part of the administration connector 14, finally, the blocking needle head 1 is pushed to continue to move to the injection part, medicine can be injected into the administration connector 14 through the injection connector 14, the medicine flows into the inside the through the administration connector 14 to the through hole 15, and can be output from one ends of the needle head 1 and the needle core 3, and finally, the injection is completed.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. An improved nerve block needle comprising a block needle head (1), characterized in that: the utility model discloses a blocking needle, which is characterized in that a through groove (2) is formed in the blocking needle (1), a needle core (3) is arranged in the through groove (2), a connecting rod (5) is fixedly arranged at one end of the needle core (3), a sealing piston (4) is fixedly arranged at the outer side of the connecting rod (5) and at one end of the needle core (3), a mounting cylinder (6) is fixedly arranged at one end of the blocking needle (1), the connecting rod (5) penetrates through the mounting cylinder (6), a mounting groove (7) is formed in the connecting rod (5), two clamping blocks (8) are movably arranged in the mounting groove (7), the bottom of fixture block (8) fixed mounting has butt plate (9), the inside of mounting groove (7) is provided with spring (10), draw-in groove (11) have been seted up to the inside of mounting cylinder (6), fixture block (8) and draw-in groove (11) cooperation, screw cap (12) are installed in the one end rotation of connecting rod (5), external screw thread (13) have been seted up in the outside of mounting cylinder (6), screw cap (12) and external screw thread (13) cooperation, the top of retarding syringe needle (1) is provided with and doses joint (14), through-hole (15) have been seted up at the top of logical groove (2), the through hole (15) is matched with the administration joint (14).

2. An improved nerve block needle as defined in claim 1 wherein: the inside of the through hole (15) is provided with a nerve stimulator lead (16).

3. An improved nerve block needle as defined in claim 1 wherein: the inside of retarding syringe needle (1) one side is offered and is connected with connecting rod (5) complex hole, the inside of installation section of thick bamboo (6) is offered and is connected with connecting rod (5) complex hole, connecting rod (5) and installation section of thick bamboo (6) swing joint.

4. An improved nerve block needle as defined in claim 1 wherein: the fixture block (8) is movably connected with the connecting rod (5), the retaining plate (9) is movably connected with the mounting groove (7), and an inclined guide angle is formed in one side of the fixture block (8).

5. An improved nerve block needle as defined in claim 1 wherein: an inclined surface guide angle matched with the needle core (3) is arranged on the outer side of one end of the retarding needle head (1).

6. An improved nerve block needle as defined in claim 1 wherein: the sealing piston (4) is movably connected with the through groove (2).