A kind of common syringe needle is for the needle electrode connecting device of myoelectricity guiding injectionTechnical field
This utility model relates to injection system introduces apparatus and the adnexa thereof in body by medium, relates in particular to a kind of needle electrode connecting device that uses common syringe needle to carry out electromyogram locating injection art.
Background technology
Electromyogram guiding is the important technology of the diseases such as botulinum toxin injection for curing myodystonia.Previously conventional method is first to adopt electromyogram concentric electrode to survey, and finds out main responsibility muscle, and then uses injection needle injection of medicine instead, and now the same position of patient at least needs 2 punctures.Chinese utility model patent " the Electromyogram-Guided Treatment Instrument " (patent No.: ZL02216929.6, Granted publication number: CN2534972Y) disclose a kind of Electromyogram-Guided Treatment Instrument and comprised casing, on casing, be furnished with entry needle type guide needle electrode and reference electrode that display screen and the appearance for contacting with human body scribble insulant, in casing, be provided with circuit, this circuit comprises preposition, filter amplifier, power amplifier and A/D converter, preposition, the input of filter amplifier is connected with reference electrode with guide needle electrode, outfan is connected with the input of power amplifier, the outfan of power amplifier is connected with the input of A/D converter, the outfan of A/D converter is connected with display screen.This utility model is used the special guide needle electrode of manufacturing to insert the muscle of required inspection and treatment, reference electrode contacts with surrounding skin, and whether according to gained myoelectricity figure, differentiating is target muscle, when guide needle electrode detector arrives the target muscle of pathological changes, implement injectable drug.External fewer companies has been produced injection electromyogram probe, single price 350-800 unit/, although can realize when surveying electromyographic signal injectable drug in this belly of muscle, and due to expensive, increased the weight of greatly patient treatment burden.
Utility model content
The purpose of this utility model is to provide a kind of needle electrode connecting device for myoelectricity guiding injection, can use common syringe needle to realize the lower accurate local muscle of myoelectricity guiding location injectable drug simultaneously, thereby greatly reduce medical expense when reducing patient's repeated puncture misery.
This utility model solves the problems of the technologies described above adopted technical scheme:
A kind of common syringe needle is for the needle electrode connecting device of myoelectricity guiding injection, comprise needle electrode for surveying electromyographic signal, for connecting myoelectricity wire and the myoelectricity cable port of electromyograph(EMG, it is characterized in that described needle electrode is comprised of common injection needle and spring lead-in wire fixation hook, described spring lead-in wire fixation hook comprises the metal hook that the hard metal wire of front end hook is made, be looped around metal hook periphery and be placed in the spring in cabinet, be connected to the button release of metal hook end, and the electromyographic signal line being connected with metal hook; Described metal hook hangs over the root of injection needle, with injection needle close contact; Described electromyographic signal line is connected to myoelectricity wire by electromyographic signal line converting interface, and is connected to electromyograph(EMG by myoelectricity cable port; Reference electrode is connected to the reference signal end of electromyogram instrument by myoelectricity cable port.
Common syringe needle of the present utility model is for a kind of preferably technical scheme of the needle electrode connecting device of myoelectricity guiding injection, it is characterized in that described injection needle is the syringe needle of common disposable infusion needle, the fin middle part of using at described injection needle end fixed needle, is provided with the spacing hole for preventing that metal hook from sliding on injection needle; The metal hook of described spring lead-in wire fixation hook, is hooked on injection needle through spacing hole, makes metal hook remain on the root of injection needle.
The beneficial effects of the utility model are:
1, common syringe needle of the present utility model is for the needle electrode connecting device of myoelectricity guiding injection, can use common syringe needle to realize the lower accurate local muscle of myoelectricity guiding location injectable drug simultaneously, not only can reduce the misery of patient's repeated puncture, can also greatly reduce medical expense, reduce patient's financial burden.
2, common syringe needle of the present utility model is for the needle electrode connecting device of myoelectricity guiding injection, utilize the spacing hole of the fin middle part setting of disposable infusion needle, make metal hook remain on the root of injection needle, can prevent that metal hook from sliding on injection needle, cause metal hook contaminated pinhead, thereby guarantee the safety of operation.
Accompanying drawing explanation
Fig. 1 is that common syringe needle of the present utility model is for the structural representation of the needle electrode connecting device of myoelectricity guiding injection;
Fig. 2 is the structural representation of spring lead-in wire fixation hook;
Fig. 3 is the disposable infusion needle schematic diagram with spacing hole as myoelectricity guid needle electrode.
The label of each parts in figure: 10-syringe, 11-injection needle, 12-Rule conehead, 13-flexible pipe, 14-fin, 15-spacing hole, 20-myoelectricity wire, 21-reference electrode, 22-electromyographic signal line converting interface, 23-electromyograph(EMG line cap, 30-spring lead-in wire fixation hook, 31-metal hook, 32-spring, 33-cabinet, 34-button release, 35-electromyographic signal line.
The specific embodiment
In order to understand better technique scheme of the present utility model, below in conjunction with drawings and Examples, describe in detail further.
An embodiment of the needle electrode connecting device that common syringe needle of the present utility model is injected for myoelectricity guiding as shown in Figure 1, comprise for surveying the needle electrode of electromyographic signal, for connecting myoelectricity wire 20 and the myoelectricity cable port 23 of electromyograph(EMG, described needle electrode is comprised of common injection needle 11 and spring lead-in wire fixation hook 30, described spring lead-in wire fixation hook 30 comprises the metal hook 31 that the hard metal wire of front end hook is made, be looped around metal hook 31 peripheries and be placed in the spring 32 in cabinet 33, be connected to the button release 34 of metal hook 31 ends, and the electromyographic signal line 35 being connected with metal hook 31, as shown in Figure 2, when pressing the button release 34 of cabinet 33 tail ends, described metal hook 31 stretches out and is hooked on the root of injection needle 11, unclamp after the button release 34 of cabinet tail end, the elastic force of spring 32 makes metal hook 31 and injection needle 11 close contacts, described electromyographic signal line 35 is connected to myoelectricity wire 20 by electromyographic signal line converting interface 22, and is connected to electromyograph(EMG by myoelectricity cable port 23, the reference signal end of electromyogram instrument is connected to reference electrode 21 by myoelectricity cable port 23, forms myoelectricity detection circuit.In the embodiment shown in fig. 1, described injection needle 11 is syringe needles of disposable syringe 10.In clinical practice, under electromyogram guiding during local muscle injectable drug, getting syringe 10 extracts after required medicine, the metal hook 31 of spring lead-in wire fixation hook 30 is connected to the root of injection needle 11, the reference electrode 21 of myoelectricity wire is affixed on the contiguous body surface in institute injection site nearby, and the other end of myoelectricity wire 20 is connected to electromyograph(EMG by myoelectricity cable port 23.Initiatively or passive required injection muscles is shunk simultaneously, slowly inserting needle is observed electromyogram on one side on one side, when corresponding actions current potential appears in electromyogram, can be judged as this muscle contraction motion and expliciting the position, after location is clear and definite, be medicine injection, complete the treatment of electromyogram locating injection art.
Fig. 3 is another embodiment of the common syringe needle for myoelectricity guid needle electrode of the present utility model, in this embodiment, described injection needle 11 is syringe needles of common disposable infusion needle, the fin 14 that the end of described injection needle 11 is used with fixed needle, described fin 14 middle parts are provided with spacing hole 15, the metal hook 31 of described spring lead-in wire fixation hook 30, passes the root that spacing hole 15 is hooked on injection needle 11.Described spacing hole 15 can prevent that metal hook 31 from sliding on injection needle 11, makes metal hook 31 remain on the root of injection needle 11.Described injection needle 11 is connected to the syringe that extracts required medicine by flexible pipe 13 and Rule conehead 12, realize the clear and definite rear medicine injection in location, carries out the treatment of electromyogram locating injection art.
Those of ordinary skill in the art will be appreciated that; above embodiment is only for the technical solution of the utility model is described; and be not used as restriction of the present utility model; any variation of the above embodiment being done based on connotation of the present utility model, modification, all will drop in the protection domain of claim of the present utility model.