CN219422922U - Nerve block needle injection device - Google Patents
Nerve block needle injection device Download PDFInfo
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- CN219422922U CN219422922U CN202222156106.3U CN202222156106U CN219422922U CN 219422922 U CN219422922 U CN 219422922U CN 202222156106 U CN202222156106 U CN 202222156106U CN 219422922 U CN219422922 U CN 219422922U
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- needle
- soft
- hard
- puncture
- connecting rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The utility model relates to a nerve block needle injection device, which comprises a liquid injection catheter and a puncture needle, wherein the liquid injection catheter comprises a soft needle and a hard needle which are of hollow structures, one end of the soft needle is provided with a needle point for penetrating human tissues, the other end of the soft needle is connected with the hard needle, the other end of the hard needle is provided with a push injection port for being connected with an injector, the soft needle is made of soft metal so as to control the injection speed of anesthetic through bending deformation of the soft needle, and the puncture needle is movably arranged in the soft needle so as to puncture the human tissues and support the soft needle from bending during puncture. The utility model combines the soft needle and the hard needle to form the liquid injection catheter, the injector is arranged on the hard needle to inject the liquid medicine into the hard needle, the liquid medicine is injected into the nerve trunk or the ganglion periphery through the soft needle, the soft needle is made of soft metal, and once the medicine pushing force is too large, the deformation can occur, the flow velocity of the liquid medicine is delayed, thereby avoiding the damage to the nerve due to the too high injection speed.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a nerve block needle injection device.
Background
Nerve block is to block the region dominated by nerve impulse conduction by injecting drugs of tingling and drunk drugs around nerve trunk and ganglion, thereby producing anesthesia and analgesia effects. When anesthesia is performed on a patient, medical staff is required to manually inject the anesthesia through an anesthesia injector, but the manual injection cannot control the drug pushing force and the injection speed, and once the injection is too fast, nerves can be possibly damaged, so that irreparable injuries are caused.
In order to solve the above problems, 202020396841.X of the prior art has publication date 2021, 02 and 02. The patent proposes nerve block anesthesia injection system, including syringe (1), syringe (1) one side block fixed syringe (3) and syringe (1) be different from syringe (3) one side push rod (2) cross-under, its characterized in that: the injection needle cylinder (1) is rotationally connected with a connecting block (5) at a position close to a push rod (2) on the surface, a connecting rod (7) is integrally formed between the connecting blocks (5), a rotating wheel (6) is connected at the middle position of the connecting rod (7), a shifting piece (8) is arranged at the position close to the rotating wheel (6) on the surface of the push rod (2), the shifting piece (8) and the push rod (2) are of an integral structure, a screw button (15) is rotationally connected at the two ends of the connecting rod (7), a rotary spring (14) is connected between the screw button (15) and the rotating wheel (6) in a splicing mode, and a limiting block (12) is sleeved at the position of the injection needle (3) outside close to one end of the injection needle cylinder (1). When a practice doctor carries out nerve block anesthesia medicine injection operation, the rotating wheel is in contact with the poking piece on the surface of the push rod, so that the push rod can normally inject medicine, and the shrinkage degree of the rotating spring is adjusted through the screw on the rotating connecting rod, so that the doctor can feel different thrusts given by the rotating wheel in the medicine injection process, and can feel medicine injection speed and feel according to the specific conditions of the doctor, the success rate of medicine injection of the practice doctor is greatly ensured, and the problem that the prior nerve block anesthesia medicine injector cannot enable the practice doctor to provide practice and find feel is solved.
The prior art 202120782533.5, the publication day is 2021 12 month 28, and this patent proposes a monitor for monitoring injection pressure during nerve block anesthesia, including syringe (1), injection piston (2) and injection needle (3), its characterized in that: the injection tube is characterized in that a pushing plate (4) is arranged on the outer side of the injection tube (1), a connecting piece (5) is arranged between the pushing plate (4) and the injection piston (2), an adjusting piece (6) for adjusting the position of the pushing plate (4) is arranged on the outer side of the injection tube (1), and a driving piece (7) for driving the pushing plate (4) to adjust is arranged on the outer side of the injection tube (1). Through the driving piece that is equipped with to realize the monitoring effect to whole anesthesia injection process pressure, monitor case electrical control electric telescopic handle, can adjust the distance that electric telescopic handle moved at every turn through the monitor case, and the time interval of removing at every turn, adjust according to the demand of anesthesia medicine injection, and carry out automatic comparison according to the time of electric telescopic handle at every turn moving the same distance and theoretical time, monitor case automatically calculates the size of this position pressure, if pressure accords with the requirement of anesthesia injection, if pressure is too big or undersize, the pilot lamp twinks, and the work of automatic stop electric telescopic handle.
Disclosure of Invention
The utility model aims at overcoming the defects, and provides a nerve blocking needle injection device, which is characterized in that compared with the existing structure that a hard needle tube cannot control injection speed, the nerve blocking needle injection device adopts soft metal to form an injection channel, and utilizes the characteristics of softness and easy deformation of the soft metal, once the injection speed is too high, the soft needle is impacted to distort, the flow of liquid medicine is affected, thereby realizing effective regulation and control on the flow speed of anesthetic liquid, avoiding damage to nerves due to too high flow speed.
The utility model solves the technical problems by adopting the scheme that: the utility model provides a nerve block needle injection device, includes notes liquid pipe and pjncture needle, notes liquid pipe includes hollow structure's soft needle and hard needle, the one end of soft needle is equipped with the needle point that is used for passing human tissue, and the other end and the hard needle of soft needle are connected, and the other end of hard needle is equipped with the bolus port that is used for being connected with the syringe, the soft needle is made through the bending deformation control anesthetic injection rate of soft needle by soft metal, pjncture needle activity wears to locate in the soft needle in order to puncture human tissue and support soft needle and do not take place to buckle when the puncture.
Further, in order to insert the puncture needle into the soft needle to support the soft needle, the soft needle made of soft metal is prevented from deforming during puncture and cannot penetrate through human tissues; the soft needle is hinged with the hard needle so as to turn the hard needle open when in puncture, so that the puncture needle is inserted into the soft needle, and a reset component used for enabling the soft needle to be tightly connected with the hard needle and a sealing component used for guaranteeing the sealing connection of the soft needle and the hard needle are arranged at the hinged connection position of the soft needle and the hard needle.
Further, in order to control the hard needle to automatically reclose with the soft needle after the puncture needle is withdrawn from the soft needle, so as to form an injection channel of anesthetic; the reset assembly comprises a first connecting rod, a second connecting rod and a reset spring, one end of the first connecting rod is hinged to the soft needle, the other end of the first connecting rod is hinged to the second connecting rod, the other end of the second connecting rod is hinged to the hard needle, the reset spring is rotatably arranged between the hinged joint of the first connecting rod and the second connecting rod and the hinged joint of the soft needle and the hard needle, so that after the puncture is finished, the first connecting rod and the second connecting rod are driven to rotate through rebound of the reset spring to drive the hard needle to be in tight connection with the soft needle again.
Furthermore, in order to ensure the tightness of the joint of the hard needle and the soft needle, the anesthetic liquid is effectively prevented from leaking at the joint of the soft needle and the hard needle during injection; the sealing assembly comprises a front sealing ring arranged on one side of the soft needle, which is close to the hard needle, and a rear sealing ring arranged on one side of the hard needle, which is close to the soft needle, and the front sealing ring and the rear sealing ring are in sealing fit so as to prevent anesthetic liquid from leaking at the joint of the soft needle and the hard needle during injection.
Further, in order to facilitate holding the hard needle and operating the injector, anesthetic liquid is injected into the nerve trunk and the periphery of the ganglion through the liquid injection catheter, and the region dominated by nerve impulse conduction is blocked, so that the anesthetic and analgesic effects are generated; the injection port of the hard needle is provided with an annular flange for holding the hard needle, and the annular flange is formed by extending the edge of the hard needle radially outwards.
Further, in order to display the distance from the sharp head of the puncture needle to the tip of the soft needle under ultrasonic waves, the conveying distance of the liquid injection catheter is accurately controlled, and the purpose of accurately placing the tube is achieved; one side of the puncture needle is provided with a sharp head for puncturing human tissues, and one side of the sharp head of the puncture needle tip is uniformly provided with a plurality of developing grooves for displaying scales along the axial direction of the puncture needle.
Further, in order to facilitate holding the puncture needle, the puncture needle is pierced into human tissue; the side of the puncture needle, which is back to the sharp head, is provided with a handle which is convenient for holding the puncture needle.
Further, to monitor neuronal responses; the puncture needle is of a hollow structure, a nerve sensor is arranged at the needle point of the puncture needle, and a wire used for connecting the nerve sensor with a nerve detector is arranged in the hollow structure of the puncture needle.
Compared with the prior art, the utility model has the following advantages: the utility model adopts the combination of the soft needle and the hard needle to form the liquid injection catheter, the injector is arranged on the hard needle to push the liquid medicine into the hard needle, the liquid medicine is injected into the nerve trunk or the ganglion periphery through the soft needle, the soft needle is made of soft metal, once the medicine pushing force is overlarge, the deformation can occur, the liquid medicine flow rate is delayed, thereby avoiding the damage to the nerve caused by the overlarge injection speed.
Drawings
The utility model is further described below with reference to the accompanying drawings in conjunction with examples:
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the soft needle and the hard needle in an open state;
FIG. 3 is an enlarged view of a portion of FIG. 2A;
FIG. 4 is a schematic view of the structure of the soft and hard needle in a closed state;
FIG. 5 is an enlarged view of part of B in FIG. 4;
fig. 6 is a schematic view of the structure of the puncture needle.
In the figure: a puncture needle 1; a sharp head 101; a developing groove 102; a handle 103; a soft needle 2; a needle tip 201; a hard needle 3; a push gate 301; an annular flange 302; a reset assembly 4; a first link 401; a second link 402; a return spring 403; a front seal ring 5; a rear seal ring 6; a neural sensor 7.
Description of the embodiments
The present utility model is described in detail below with reference to the attached drawings and specific examples of the specification:
specific examples: as shown in fig. 1 to 6, the present embodiment provides a nerve block needle injection device, comprising a liquid injection catheter and a puncture needle 1, wherein the liquid injection catheter comprises a soft needle 2 and a hard needle 3 with a hollow structure, one end of the soft needle 2 is provided with a needle tip 201 for penetrating human tissue, the other end of the soft needle 2 is connected with the hard needle 3, the other end of the hard needle 3 is provided with a push injection port 301 for being connected with an injector, the soft needle 2 is made of soft metal so as to control the injection speed of anesthetic through the bending deformation of the soft needle 2, and the puncture needle 1 is movably arranged in the soft needle 2 so as to puncture human tissue and support the soft needle 2 from bending during puncture.
In this embodiment, in order to insert the puncture needle 1 into the soft needle 2 to support the soft needle 2, the soft needle 2 made of soft metal is prevented from being deformed during the puncture and cannot penetrate through human tissue; the soft needle 2 is hinged with the hard needle 3 so as to turn the hard needle 3 over during puncture to insert the puncture needle 1 into the soft needle 2, and a reset component 4 for keeping the soft needle 2 tightly connected with the hard needle 3 and a sealing component for ensuring the sealing connection between the soft needle 2 and the hard needle 3 are arranged at the hinged connection part of the soft needle 2 and the hard needle 3.
In this embodiment, in order to control the hard needle 3 to automatically reclose with the soft needle 2 after the puncture needle 1 is withdrawn from the soft needle 2, an injection channel of anesthetic is formed; the reset component 4 comprises a first connecting rod 401, a second connecting rod 402 and a reset spring 403, one end of the first connecting rod 401 is hinged on the soft needle 2, the other end of the first connecting rod 401 is hinged with the second connecting rod 402, the other end of the second connecting rod 402 is hinged with the hard needle 3, the reset spring 403 is rotatably arranged between the hinged joint of the first connecting rod 401 and the second connecting rod 402 and the hinged joint of the soft needle 2 and the hard needle 3, so that after puncture is finished, the first connecting rod 401 and the second connecting rod 402 are driven to rotate through rebound of the reset spring 403 to drive the hard needle 3 to be in tight connection with the soft needle 2 again.
In the embodiment, in order to ensure the tightness of the joint between the hard needle 3 and the soft needle 2, the anesthetic is effectively prevented from leaking at the joint between the soft needle 2 and the hard needle 3 during injection; the sealing assembly comprises a front sealing ring 5 arranged on one side of the soft needle 2, which is close to the hard needle 3, and a rear sealing ring 6 arranged on one side of the hard needle 3, which is close to the soft needle 2, wherein the front sealing ring 5 and the rear sealing ring 6 are in sealing fit so as to prevent anesthetic liquid from leaking at the joint of the soft needle 2 and the hard needle 3 during injection.
In this embodiment, to facilitate holding the hard needle 3 for operating the injector, anesthetic is injected into the nerve trunk and around the ganglion through the injection catheter to block the region dominated by nerve impulse conduction, thereby producing anesthetic and analgesic effects; an annular flange 302 for holding the hard needle 3 is arranged at the injection port 301 of the hard needle 3, and the annular flange 302 is formed by extending the edge of the hard needle 3 radially outwards.
In the embodiment, in order to display the distance from the sharp head 101 of the puncture needle 1 to the needle point 201 of the soft needle 2 under ultrasonic waves, the conveying distance of the infusion catheter is precisely controlled, and the purpose of precisely placing the tube is achieved; one side of the puncture needle 1 is provided with a sharp head 101 for puncturing human tissue, and one side of the sharp head 101 of the puncture needle 1 is uniformly provided with a plurality of developing grooves 102 for displaying scales along the axial direction of the puncture needle 1.
In the present embodiment, in order to facilitate holding of the puncture needle 1, the puncture needle 1 is pierced into human tissue; the side of the puncture needle 1 facing away from the sharp-shaped head 101 is provided with a handle 103 for facilitating the holding of the puncture needle 1.
In this example, to monitor neuronal responses; the puncture needle 1 is of a hollow structure, a nerve sensor 7 is arranged at the needle point 201 of the puncture needle 1, and a wire for connecting the nerve sensor 7 with a nerve detector is arranged in the hollow structure of the puncture needle 1.
The specific implementation process comprises the following steps: in operation, the puncture needle 1 and the infusion catheter are used for operation, because the soft needle 2 is extremely soft, the pipe diameter is extremely thin and lacks supporting force, and when in delivery, the pipe is arranged by bare hand, the needle section between the needle tip 201 of the soft needle 2 and the needle tail is easy to bend, so that the pipe arrangement is difficult, therefore, the puncture needle 1 needs to be inserted into the soft needle 2 to support the soft needle 2 without bending, in order to avoid the installation of the puncture needle 1 from being interfered by the hard needle 3, the hard needle 3 needs to be rotated 90 degrees relative to the soft needle 2 to keep the hard needle 3 vertical to the soft needle 2 before penetrating the puncture needle 1, thereby avoiding the hard needle 3 blocking the puncture needle 1, and in the process of rotating the hard needle 3, the four-bar mechanism consisting of the first bar 401, the second bar 402, the hard needle 3 and the soft needle 2 rotates, and the return spring 403 is stretched, so that the hard needle 3 is fixed in the state, the reset spring 403 is always in an elongated state, after the puncture needle 1 is placed in a preset proper position in a human body, the distance between the puncture needle 1 and the soft needle 2 is observed through the developing groove 102 on the puncture needle 1, the puncture needle 1 is withdrawn under an ultrasonic visual screen, the external force to the hard needle 3 is removed, the reset spring 403 is retracted, the deformation is recovered, the four-bar mechanism consisting of the first connecting bar 401, the second connecting bar 402, the hard needle 3 and the soft needle 2 is driven to rotate, the hard needle 3 rotates anticlockwise and is closed again with the soft needle 2, at the moment, the soft needle 2 can be continuously pushed inwards, the injector is placed in the preset proper position, the anesthetic is smoothly conveyed to the anesthetic position through the soft needle 2, and the area dominated by nerve impulse conduction at the position is blocked, so that the anesthetic and analgesic effects are generated.
While the foregoing is directed to the preferred embodiment, other and further embodiments of the utility model will be apparent to those skilled in the art from the following description, wherein the utility model is described, by way of illustration and example only, and it is intended that the utility model not be limited to the specific embodiments illustrated and described, but that the utility model is to be limited to the specific embodiments illustrated and described.
Claims (8)
1. A nerve block needle injection device, characterized in that: the infusion catheter comprises an infusion catheter and a puncture needle, wherein the infusion catheter comprises a soft needle and a hard needle which are of hollow structures, a needle point penetrating through human tissues is arranged at one end of the soft needle, the other end of the soft needle is connected with the hard needle, a pushing injection port used for being connected with an injector is arranged at the other end of the hard needle, the soft needle is made of soft metal so as to control the injection speed of anesthetic through bending deformation of the soft needle, and the puncture needle is movably arranged in the soft needle to puncture the human tissues and support the soft needle from bending during puncture.
2. The nerve block needle injection device of claim 1, wherein: the soft needle is hinged with the hard needle so as to turn the hard needle open when in puncture, so that the puncture needle is inserted into the soft needle, and a reset component used for enabling the soft needle to be tightly connected with the hard needle and a sealing component used for guaranteeing the sealing connection of the soft needle and the hard needle are arranged at the hinged connection position of the soft needle and the hard needle.
3. The nerve block needle injection device of claim 2, wherein: the reset assembly comprises a first connecting rod, a second connecting rod and a reset spring, one end of the first connecting rod is hinged to the soft needle, the other end of the first connecting rod is hinged to the second connecting rod, the other end of the second connecting rod is hinged to the hard needle, the reset spring is rotatably arranged between the hinged joint of the first connecting rod and the second connecting rod and the hinged joint of the soft needle and the hard needle, so that after the puncture is finished, the first connecting rod and the second connecting rod are driven to rotate through rebound of the reset spring to drive the hard needle to be in tight connection with the soft needle again.
4. The nerve block needle injection device of claim 2, wherein: the sealing assembly comprises a front sealing ring arranged on one side of the soft needle, which is close to the hard needle, and a rear sealing ring arranged on one side of the hard needle, which is close to the soft needle, and the front sealing ring and the rear sealing ring are in sealing fit so as to prevent anesthetic liquid from leaking at the joint of the soft needle and the hard needle during injection.
5. The nerve block needle injection device of claim 1, wherein: the injection port of the hard needle is provided with an annular flange for holding the hard needle, and the annular flange is formed by extending the edge of the hard needle radially outwards.
6. The nerve block needle injection device of claim 1, wherein: one side of the puncture needle is provided with a sharp head for puncturing human tissues, and one side of the sharp head of the puncture needle tip is uniformly provided with a plurality of developing grooves for displaying scales along the axial direction of the puncture needle.
7. The nerve block needle injection device of claim 6, wherein: the side of the puncture needle, which is back to the sharp head, is provided with a handle which is convenient for holding the puncture needle.
8. The nerve block needle injection device of claim 5, wherein: the puncture needle is of a hollow structure, a nerve sensor is arranged at the needle point of the puncture needle, and a wire used for connecting the nerve sensor with a nerve detector is arranged in the hollow structure of the puncture needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222156106.3U CN219422922U (en) | 2022-08-16 | 2022-08-16 | Nerve block needle injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222156106.3U CN219422922U (en) | 2022-08-16 | 2022-08-16 | Nerve block needle injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219422922U true CN219422922U (en) | 2023-07-28 |
Family
ID=87332995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222156106.3U Active CN219422922U (en) | 2022-08-16 | 2022-08-16 | Nerve block needle injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219422922U (en) |
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2022
- 2022-08-16 CN CN202222156106.3U patent/CN219422922U/en active Active
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