Handheld electrode with detachable electrode tip and handle

Abstract

The utility model discloses a handheld electrode with a detachable electrode tip and a detachable handle. A handheld electrode with a detachable electrode tip and a detachable handle comprises the handle and the electrode tip which are detachably connected, the handle comprises a first shell and a second shell which are detachably connected, and the first shell and the second shell detachably clamp and fix a cable; an annular bulge is arranged on the outer wall of the cable; the first shell and the second shell are each provided with a limiting structure used for axially limiting the annular protrusion. One end of the cable extends out of one end of the handle, two branch lines are arranged at the other end of the cable, metal elastic pieces are welded to the branch lines, and the metal elastic pieces are partially exposed out of the other end of the handle. The electrode tip comprises a plug and an end cover which are detachably connected, two electrodes are clamped and fixed between the plug and the end cover, one end of each electrode is exposed out of the end cover, and one end of each electrode is connected with the metal elastic piece. By optimizing the structure, the whole electrode tip can be conveniently replaced, and the electrode in the electrode tip can also be locally replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical stimulation devices, in particular to a handheld electrode. Background Art

[0002] Electrical stimulation is a commonly used treatment method in the field of modern physical therapy, and is widely used in emergency first aid, treatment of common diseases and human rehabilitation. It is especially widely used in the field of rehabilitation therapy. Current electrical stimulation therapy uses currents with specific parameters such as medium frequency, low frequency and high frequency to stimulate the muscles and other tissues of the human body.

[0003] At present, handheld electrodes are mainly used in projects related to electromyography testing. During the test, the tester fixes the electrode on the corresponding part of the subject, connects the handheld electrode to the host to output current stimulation, and collects the muscle return signal through other devices to complete the relevant electromyography testing.

[0004] Existing handheld electrodes cannot realize the relative replacement of the grip handle and the electrode. Publication No. CN204951944U discloses an adjustable handheld electrode rod. Although the patent discloses that the electrode rod branch is connected to the handheld handle by a threaded connection or a combined installation method of a clamping connection. However, the device requires the electrode rod branch to be assembled separately, and it is impossible to realize the rapid connection between multiple electrodes and the handle. In addition, it is also impossible to realize the rapid assembly of the wires in the handle. Utility Model Content

[0005] The utility model aims at solving the problems and shortcomings of the prior art and provides a handheld electrode with a detachable electrode head and a detachable handle.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] The utility model provides a handheld electrode with a detachable electrode head and a handle, comprising a detachably connected handle and an electrode head, characterized in that the handle comprises a detachably connected first shell and a second shell, the first shell and the second shell can detachably clamp and fix a cable; an annular protrusion is provided on the outer wall of the cable;

[0008] The first shell and the second shell are both provided with a limiting structure for axially limiting the annular protrusion;

[0009] One end of the cable extends out of one end of the handle, and the other end of the cable is provided with two branch lines, on which metal springs are welded, and the metal springs are limitedly fixed on the handle, and the metal springs are partially exposed from the other end of the handle;

[0010] The electrode head comprises a detachably connected plug and an end cover, wherein two electrodes are clamped and fixed between the plug and the end cover, one end of the electrode is exposed outside the end cover, and one end of the electrode is connected to the metal spring.

[0011] The utility model optimizes the structure, facilitates the assembly of various components, and facilitates the replacement of the entire electrode head, and can also be a partial replacement of the electrode in the electrode head.

[0012] Further preferably, the first shell and the second shell are respectively provided with a plug-in column and a positioning sleeve, and the plug-in column is inserted into the inner hole of the positioning sleeve;

[0013] The plug-in column is provided with a threaded hole for threaded connection screws;

[0014] The positioning sleeve is provided with a through hole through which the screw passes;

[0015] The first shell and the second shell are connected by screws.

[0016] Further preferably, at least two positioning sleeves are arranged in the first shell, and the cable is arranged on one side of the positioning sleeves.

[0017] It is convenient for cable arrangement. When the cable is too long, you can also wrap the cable around the positioning sleeve for winding.

[0018] Further preferably, the limiting structure comprises two semicircular baffles arranged side by side along the axial direction, and the semicircular baffles are provided with semicircular holes for clamping the cables;

[0019] The annular protrusion is located between two semicircular baffles arranged side by side along the axial direction.

[0020] Further preferably, the metal spring is bent in a V-shape;

[0021] The first shell and the second shell are respectively provided with a socket for inserting the end of the metal spring.

[0022] Further preferably, when the first shell is connected to the second shell, the metal springs welded on the two branch lines are centrally symmetrically arranged.

[0023] Further preferably, the handle is provided with a clamping portion for rotatably clamping the electrode head, and the clamping portion is provided with circumferentially arranged cylindrical protrusions;

[0024] The inner wall of the plug is provided with a first groove for axially slidingly inserting the cylindrical protrusion and a clamping groove for clamping the cylindrical protrusion, and the first groove is arranged adjacent to the clamping groove in the circumferential direction;

[0025] Both ends of the slot in the axial direction are closed.

[0026] After the cylindrical protrusion is inserted into the slot by circumferential movement, it cannot move axially. After the cylindrical protrusion is disengaged from the slot by circumferential movement and slides into the first groove, the plug and the handle can be separated by axial movement.

[0027] Further preferably, the end cover and the plug are snap-connected via matching buckles and slots.

[0028] Further preferably, the end cap is provided with a through hole for the end of the electrode to extend through;

[0029] The inner wall of the end cover and the plug are both provided with clamping protrusions for clamping different sides of the electrode.

[0030] Further preferably, the plug is provided with two extension portions extending outwardly relatively along the first straight line direction;

[0031] The two electrodes are arranged along a first straight line direction.

[0032] Easy to hold in hand.

[0033] It is convenient to improve the fixing effect of the electrode.

[0034] The positive and progressive effects of the utility model are:

[0035] The utility model has a simple structure, is safe and reliable, and has a high appearance quality. After assembly, it is divided into a handle and an electrode head, wherein the electrode head can be removed and replaced, which increases the versatility of the product. The electrode head replacement structure is reliable and easy to operate. The handle is assembled with screws, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is an exploded schematic diagram of a specific embodiment 1 of the utility model;

[0037] Figure 2 This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0038] Figure 3 This is a structural schematic diagram of the connection between the plug-in column and the positioning sleeve in the specific embodiment 1 of the utility model;

[0039] Figure 4 It is a partial structural schematic diagram of a specific embodiment 1 of the utility model;

[0040] Figure 5 This is a radial schematic diagram of the connection between the electrode and the metal spring in the specific embodiment 1 of the utility model;

[0041] Figure 6It is an axial schematic diagram of the connection between the electrode and the metal spring sheet in the specific embodiment 1 of the utility model. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0043] like Figures 1 to 6 As shown, in specific embodiment 1, a handheld electrode 2 with a detachable electrode head and a handle comprises a detachably connected handle and an electrode head, the handle comprises a detachably connected first shell 7 and a second shell 5, the first shell 7 and the second shell 5 can detachably clamp and fix a cable 6; an annular protrusion is provided on the outer wall of the cable 6; the first shell 7 and the second shell 5 are both provided with a limiting structure for axial limiting of the annular protrusion; one end of the cable 6 extends out of one end of the handle, and the other end of the cable 6 is provided with two branch lines, and metal shrapnel 8 is welded on the branch line, the metal shrapnel 8 is limited and fixed on the handle, and the metal shrapnel 8 is partially exposed to the other end of the handle; the electrode head comprises a detachably connected plug 3 and an end cover 4, the plug 3 and the end cover 4 clamp and fix two electrodes 2, one end of the electrode 2 is exposed to the end cover 4, and one end of the electrode 2 is connected to the metal shrapnel 8. The utility model is convenient for assembly between various components by optimizing the structure, and is convenient for replacement of the electrode head as a whole, and can also be partial replacement of the electrode 2 in the electrode head.

[0044] The first shell 7 and the second shell 5 are respectively provided with a plug-in column and a positioning sleeve, and the plug-in column is inserted into the inner hole of the positioning sleeve; the plug-in column is provided with a threaded hole for threaded connection screw 4; the plug-in column is provided with a through hole for passing the screw 4; the first shell 7 and the second shell 5 are connected by screw 4.

[0045] At least two positioning sleeves are arranged in the first housing 7, and the cable 6 is arranged on one side of the positioning sleeve, so as to facilitate the arrangement of the cable 6. When the cable 6 is too long, the cable can also be wound around the positioning sleeve for winding.

[0046] The limiting structure includes two semicircular baffles arranged side by side along the axial direction, and semicircular holes for clamping the cable 6 are opened on the semicircular baffles; the annular protrusion is located between the two semicircular baffles arranged side by side along the axial direction.

[0047] The metal spring 8 is bent in a V shape; the first shell 7 and the second shell 5 are respectively provided with sockets for inserting the ends of the metal spring 8. When the first shell 7 is connected to the second shell 5, the metal springs 8 welded on the two branch lines are centrally symmetrically arranged. The metal spring includes a first bending portion and a second bending portion that are bent. The first bending portion is inserted into the socket. The second bending portion is against the electrode. The first shell and the second shell are both provided with a socket and a avoidance port for partially avoiding the metal spring. The socket and the avoidance port are located at the connection between the first shell and the second shell.

[0048] The handle is provided with a clamping portion for rotating and clamping the electrode head, and the clamping portion is provided with cylindrical protrusions arranged circumferentially; the inner wall of the plug 3 is provided with a first groove for axially sliding and inserting the cylindrical protrusion and a clamping groove for clamping the cylindrical protrusion, and the first groove is arranged adjacent to the clamping groove in the circumferential direction; both ends of the clamping groove in the axial direction are closed. It is convenient for the cylindrical protrusion to be clamped into the clamping groove by circumferential movement, and it cannot move axially. The cylindrical protrusion is separated from the clamping groove by circumferential movement, and after sliding into the first groove, the plug 3 and the handle can be separated by axial movement. The length direction of the cylindrical protrusion is parallel to the axial direction of the clamping portion. The first groove and the clamping groove are connected by an arc transition portion. The first groove is adjacent to the handle side opening. And it is used to slide the cylindrical protrusion axially.

[0049] The end cover 4 and the plug 3 are connected by means of matching buckles and slots.

[0050] The end cap 4 is provided with a through hole for the end of the electrode 2 to extend through; the end cap 4 and the inner wall of the plug 3 are both provided with clamping protrusions for clamping different sides of the electrode 2 .

[0051] The plug is provided with two extension parts extending outwards relatively along a first straight line direction; and the two electrodes are arranged along the first straight line direction.

[0052] The assembly process of this device:

[0053] Step 1: Insert the two electrodes 2 into the plug 3 and install the end cover 1 onto the plug 3.

[0054] Step 2: Weld the two metal springs 8 to the cable 6 .

[0055] Step 3: Install the cable 6 into the second housing 5 .

[0056] Step 4: Install the two metal springs 8 into the second housing 5 and the first housing 7 respectively. The metal springs 8 are arranged in an interference fit.

[0057] Step 5: Install the first housing 7 into the second housing 5 and connect them using two screws 4.

[0058] Step 6: Install the electrode head to the handle. Align the first groove of the plug with the cylindrical protrusion of the handle, insert it axially into place, and rotate it circumferentially until you hear the snap-on sound (the cylindrical protrusion is snapped into the slot). Rotate in the opposite direction when removing.

[0059] Usage process: Connect the cable to the corresponding machine. The tester holds the handle with his fingers stuck in the plug. After holding it tightly, stick the electrode to the test part of the tester.

[0060] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A handheld electrode with a detachable electrode head and handle, comprising a detachably connected handle and an electrode head, characterized in that: The handle comprises a first shell and a second shell which are detachably connected, and the first shell and the second shell can detachably clamp and fix the cable; an annular protrusion is provided on the outer wall of the cable; The first shell and the second shell are both provided with a limiting structure for axially limiting the annular protrusion; One end of the cable extends out of one end of the handle, and the other end of the cable is provided with two branch lines, on which metal springs are welded, and the metal springs are limitedly fixed on the handle, and the metal springs are partially exposed from the other end of the handle; The electrode head comprises a detachably connected plug and an end cover, wherein two electrodes are clamped and fixed between the plug and the end cover, one end of the electrode is exposed outside the end cover, and one end of the electrode is connected to the metal spring.

2. A handheld electrode with a detachable electrode head and handle as claimed in claim 1, characterized in that: The first shell and the second shell are respectively provided with a plug-in column and a positioning sleeve, and the plug-in column is inserted into the inner hole of the positioning sleeve; The plug-in column is provided with a threaded hole for threaded connection screws; The positioning sleeve is provided with a through hole through which the screw passes; The first shell and the second shell are connected by screws.

3. A handheld electrode with a detachable electrode head and handle as claimed in claim 2, characterized in that: At least two positioning sleeves are arranged in the first shell, and the cable is arranged on one side of the positioning sleeve.

4. A handheld electrode with a detachable electrode head and handle as claimed in claim 1, characterized in that: The limiting structure comprises two semicircular baffles arranged side by side along the axial direction, and the semicircular baffles are provided with semicircular holes for clamping the cables; The annular protrusion is located between two semicircular baffles arranged side by side along the axial direction.

5. A handheld electrode with a detachable electrode head and handle as claimed in claim 1, characterized in that: The metal spring is bent in a V shape; The first shell and the second shell are respectively provided with a socket for inserting the end of the metal spring.

6. A handheld electrode with a detachable electrode head and handle as claimed in claim 5, characterized in that: When the first shell is connected to the second shell, the metal springs welded on the two branch lines are centrally symmetrically arranged.

7. A handheld electrode with a detachable electrode head and handle as claimed in claim 6, characterized in that: The handle is provided with a clamping portion for rotatably clamping the electrode head, and the clamping portion is provided with cylindrical protrusions arranged circumferentially; The inner wall of the plug is provided with a first groove for axially slidingly inserting the cylindrical protrusion and a clamping groove for clamping the cylindrical protrusion, and the first groove is arranged adjacent to the clamping groove in the circumferential direction; Both ends of the slot in the axial direction are closed.

8. A handheld electrode with a detachable electrode head and handle as claimed in claim 1, characterized in that: The end cover and the plug are connected by means of mutually matching buckles and slots.

9. A handheld electrode with a detachable electrode head and handle as claimed in claim 1, characterized in that: The end cap is provided with a through hole for the end of the electrode to extend through; The inner wall of the end cover and the plug are both provided with clamping protrusions for clamping different sides of the electrode.

10. A handheld electrode with a detachable electrode head and handle as claimed in claim 1, characterized in that: The plug is provided with two extensions extending outwardly in opposite directions along a first straight line; The two electrodes are arranged along a first straight line direction.

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