Nerve block needle

Abstract

The utility model discloses a nerve block needle, which particularly relates to the field of medical instruments, comprises a catheter and a needle head arranged at one end of the catheter, and is characterized in that a bearing plate is arranged at one end, far away from the needle head, of the catheter, a sealing frame is arranged at the top end of the bearing plate and is connected with the catheter, and a sealing piston is arranged in the sealing frame; a connecting plate is arranged at the top end of the bearing plate, a threaded hole is formed in the middle of the connecting plate, a medicine conveying device is arranged in the threaded hole, and the medicine conveying device comprises a medicine conveying device and a medicine conveying connector. The sealing piston is arranged on the medicine conveying connector to prevent blood from flowing back, and when medicine conveying equipment is replaced, the medicine conveying connector is in threaded connection with the thread arranged on the surface of the medicine conveying connector through the threaded hole, the medicine conveying connector is driven to rotate through the stress gear, and the medicine conveying connector penetrates through the sealing piston to be connected with the catheter.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments more particularly, the utility model relates to a nerve block needle. BACKGROUND

[0002] Nerve block refers to only one injection can obtain a larger anesthetic area, but there is the possibility of causing serious complications, so the operation must be familiar with local anatomy, understand the tissue to be passed through by the puncture needle, and the nearby blood vessels, organs and body cavities etc., common nerve block has intercostal, infraorbital, sciatic, finger (toe) nerve trunk block, cervical plexus, arm nerve plexus block, and diagnosis and treatment of stellate ganglion and lumbar sympathetic ganglion block etc.;

[0003] The traditional nerve block needle needs to pull out the needle core before injecting the medicine, which is not only cumbersome, but also easy to cause blood backflow.

[0004] Therefore, the nerve block needle is provided for the above problems. TECHNICAL SOLUTION

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of the utility model provide a nerve block needle to solve the problems raised in the above background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a nerve block needle, comprising a catheter and a needle head arranged at one end of the catheter, characterized in that the end of the catheter away from the needle head is provided with a bearing plate, the top end of the bearing plate is provided with a sealing frame connected with the catheter, a sealing piston is arranged in the sealing frame, the top end of the bearing plate is provided with a connecting plate, a threaded hole is formed in the middle part of the connecting plate, a medicine delivery device is arranged in the threaded hole, the medicine delivery device comprises a medicine delivery device and a medicine delivery connector, and the medicine delivery connector is connected with the catheter through the sealing piston.

[0007] Preferably, the medicine delivery connector surface of the medicine delivery device is provided with threads, and the threads are screw connected with the threaded hole formed in the connecting plate.

[0008] Preferably, the top end of the connecting plate is provided with a movable groove, a stress gear is movably arranged in the movable groove, a power gear is engaged on one side of the stress gear, a placing groove is formed in the surface of the connecting plate, and a driving device is arranged in the placing groove, and the power end of the driving device is connected with the power gear.

[0009] Preferably, a through hole is formed in the middle part of the stress gear, and a longitudinal sliding rail is arranged in the through hole, a plurality of slide strips are arranged on the side wall of the medicine delivery device, and the slide strips are movably connected with the sliding rails.

[0010] Preferably, the threaded hole bottom of the connecting plate is connected with the sealing frame, and the sealing frame is provided with sealing rubber at the joint with the threaded hole.

[0011] Preferably, the bottom of the bearing plate is provided with a connecting piece, and the bottom of the connecting piece is provided with pressure-sensitive adhesive.

[0012] The technical effects and advantages of the present application are as follows:

[0013] Compared with the prior art, the present application transports nerve block drugs to the human body through the catheter and the needle, and at the same time, continuously supplies the drugs by using the drug delivery device, the sealing piston is arranged at the drug delivery interface to prevent blood backflow, when the drug delivery device is replaced, the threaded hole is threadedly connected with the threads arranged on the surface of the drug delivery connector, and the drug delivery connector is rotated by the force receiving gear, so that the drug delivery connector is connected with the catheter through the sealing piston, and in the connection process, the contact with the outside is reduced to avoid the pollution of the internal device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the present application.

[0015] Figure 2 It is a structure schematic view between the bearing plate and the connecting plate of the present application.

[0016] Figure 3 It is a structure schematic view of the gear connection structure of the present application.

[0017] Figure 4 It is a structure schematic view of the surface of the connecting plate of the present application.

[0018] The reference signs are as follows: 1, catheter; 2, needle; 3, bearing plate; 4, connecting plate; 5, connecting piece; 6, pressure-sensitive adhesive; 7, drug delivery device; 8, sealing frame; 9, sealing piston; 10, threaded hole; 11, drug delivery device; 12, drug delivery connector; 13, movable groove; 14, force receiving gear; 15, power gear; 16, placing groove; 17, driving device. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Embodiment one

[0021] As shown in the accompanying drawings Figure 1 and Figure 2As shown in one kind nerve block needle, including the catheter 1 and the needle head 2 arranged at one end thereof, the catheter 1 is provided with the bearing plate 3 away from the needle head 2, the top of the bearing plate 3 is provided with the sealing frame 8, and the sealing frame 8 is connected with the catheter 1, the sealing frame 8 is provided with the sealing piston 9 inside, the top of the bearing plate 3 is provided with the connecting plate 4, the middle part of the connecting plate 4 is provided with the threaded hole 10, and the threaded hole 10 is provided with the medicine delivery device 7 inside, the medicine delivery device 7 includes the medicine delivery device 11 and the medicine delivery connector 12, the medicine delivery connector 12 is connected with the catheter 1 through the sealing piston 9.

[0022] Wherein: through the catheter 1 and the needle head 2 to the human body to transport nerve block drug, simultaneously, utilize the medicine delivery device 7 to continuously supply medicine, the utility model discloses a sealing piston 9 is arranged at the medicine delivery interface to prevent blood reflux.

[0023] Example two

[0024] On the basis of based on example one, the scheme in example one is further refined in the following specific working mode, and details are described below:

[0025] As Figure 2 Preferred embodiment; the medicine delivery connector 12 surface of the medicine delivery device 7 is provided with a thread, and the thread is screw connected with the threaded hole 10 opened in the connecting plate 4, further, the thread arranged on the surface of the medicine delivery connector 12 can be screw connected with the threaded hole 10 opened in the connecting plate 4, so as to connect the medicine delivery device 7 with the catheter 1.

[0026] As Figure 3 And Figure 4 Preferred embodiment; the top of the connecting plate 4 is provided with a movable slot 13, the movable slot 13 is movably provided with a force gear 14, the force gear 14 is engaged with a power gear 15 on one side, the surface of the connecting plate 4 is provided with a placing slot 16, and the placing slot 16 is provided with a driving device 17 inside, the driving end of the driving device 17 is connected with the power gear 15, further, the driving device 17 drives the power gear 15 to rotate, and the power gear 15 drives the force gear 14 to rotate, since the force gear 14 is arranged inside the movable slot 13, the force gear 14 can rotate inside the movable slot 13, so as to drive the medicine delivery connector 12 to rotate by the force gear 14.

[0027] As Figure 3 Preferred embodiment; the middle part of the force gear 14 is provided with a through hole, and the through hole is provided with a longitudinal sliding rail inside, the side wall of the medicine delivery device 11 is provided with a plurality of sliding strips, and the sliding strips are movably connected with the sliding rail, further, since the sliding strips arranged on the surface of the medicine delivery connector 12 are movably connected with the sliding rail opened in the inner wall of the force gear 14, the medicine delivery connector 12 can only move vertically inside the force gear 14.

[0028] As Figure 2 shown, as a preferred embodiment; the bottom of the threaded hole 10 provided by the connecting plate 4 is connected with the sealing frame 8, and the sealing frame 8 is provided with sealing rubber at the joint with the threaded hole 10, and further, the sealing rubber provided between the sealing frame 8 and the threaded hole 10 increases the sealing property of the device.

[0029] As Figure 1 shown, as a preferred embodiment; the bottom of the bearing plate 3 is provided with the connecting piece 5, and the bottom of the connecting piece 5 is provided with the pressure-sensitive adhesive 6, and further, the connecting piece 5 and the pressure-sensitive adhesive 6 provided at the bottom of the bearing plate 3 are used to connect the device with the human body.

[0030] The working process of the utility model is as follows:

[0031] When the utility model is used, the nerve block drug is transported to the human body through the catheter 1 and the needle 2, and at the same time, the medicine delivery equipment 7 is used to continuously supply medicine, the utility model is provided with the sealing piston 9 at the medicine delivery interface to prevent blood backflow, when the medicine delivery equipment 7 is replaced, the threaded hole 10 and the thread provided on the surface of the medicine delivery connector 12 are threadedly connected, and the medicine delivery connector 12 is rotated by the driving gear 14, so that the medicine delivery connector 12 is connected with the catheter 1 through the sealing piston 9, and in the connecting process, the contact with the outside is reduced to avoid the pollution of the internal device.

[0032] Finally, the following points should be noted: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0033] Secondly: the utility model discloses the embodiment of the drawing, only relates to the structure involved in the embodiment of the present disclosure, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0034] Finally: the above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A nerve block needle comprising a catheter (1) and a needle (2) provided at one end thereof, characterized in that, The catheter (1) is provided with a bearing plate (3) away from the needle (2), the top of the bearing plate (3) is provided with a sealing frame (8), and the sealing frame (8) is connected with the catheter (1), the inside of the sealing frame (8) is provided with a sealing piston (9), the top of the bearing plate (3) is provided with a connecting plate (4), the middle part of the connecting plate (4) is provided with a threaded hole (10), and the inside of the threaded hole (10) is provided with a medicine delivery device (7), the medicine delivery device (7) comprises a medicine delivery device (11) and a medicine delivery connector (12), the medicine delivery connector (12) is connected with the catheter (1) through the sealing piston (9).

2. A nerve block needle as defined in claim 1, wherein: The medicine delivery connector (12) surface of the medicine delivery device (7) is provided with a thread, and the thread is screwed with the threaded hole (10) opened in the connecting plate (4).

3. A nerve block needle as defined in claim 1, wherein: The top of the connecting plate (4) is provided with a movable slot (13), the inside of the movable slot (13) is movably provided with a force gear (14), one side of the force gear (14) is engaged with a power gear (15), the surface of the connecting plate (4) is provided with a placing groove (16), the inside of the placing groove (16) is provided with a driving device (17), and the power end of the driving device (17) is connected with the power gear (15).

4. A nerve block needle as defined in claim 3, wherein: The middle part of the force gear (14) is provided with a through hole, and the inside of the through hole is provided with a longitudinal slide rail, the side wall of the medicine delivery device (11) is provided with a plurality of slide strips, and the slide strips are movably connected with the slide rails.

5. A nerve block needle as defined in claim 1, wherein: The bottom of the threaded hole (10) opened in the connecting plate (4) is connected with the sealing frame (8), and the sealing frame (8) is provided with a sealing rubber at the joint with the threaded hole (10).

6. A nerve block needle as defined in claim 1, wherein: The bottom of the connecting plate (4) is provided with a connecting piece (5), and the bottom of the connecting piece (5) is provided with a pressure sensitive adhesive (6).

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