Cable connecting device

Abstract

The utility model relates to a cable connecting device. According to the cable connecting device, one more wire core is led out from the plug and is electrically connected with the single-core cable, and the connecting terminal on the single-core cable is clamped on the headstock and is used for generating bias voltage to counteract the influence of polarization-resistant voltage on signals when the test stimulator collects the electric signals. When the connecting terminal on the single-core cable is clamped on the trocar, a stimulation loop is formed to carry out unipolar stimulation on a human body, so that when the in-vivo stimulator is officially implanted, the test stimulator can test the stimulation effect of unipolar stimulation under different stimulation parameters in advance; when the stimulation parameters are confirmed and adjusted after implantation, even adjustment after implantation can be completely not needed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of implantable medical devices, and particularly relates to a cable connection device. BACKGROUND

[0002] A deep brain electrical stimulation (DNS) system belongs to one kind of implantable nerve stimulation systems, and mainly comprises an implantable nerve stimulator implanted in a body, a stimulation electrode implanted in the body and a programming device located outside the body. The stimulation electrode is connected with the implantable nerve stimulator, and outputs an electrical stimulation signal generated by the implantable nerve stimulator to a specific nerve part to generate electrical stimulation, so as to restore normal human body functions of the corresponding part.

[0003] During a deep brain electrical stimulation implantation operation, a doctor first needs to determine a target point position of a brain of a patient through a three-dimensional stereotactic device including a head frame, inserts an electrode wire into the corresponding target point position through a trocar, and then outputs a pulse to the electrode by using a test stimulator to check a stimulation effect and determine accuracy of the electrode implantation position. At this time, a cable wire needs to be used to connect the electrode and the test stimulator.

[0004] Chinese utility model patent document CN204067727U discloses a cable connection structure with a self-locking function, comprising: a self-locking test cable for connecting a conductive element, the self-locking test cable comprising: a self-locking connector, a wire and a cable plug end; the self-locking test cable has a self-locking function, and can lock the conductive element in the self-locking connector by rotating the shell; and a conductive element connection end, which forms an interface corresponding to the self-locking connector.

[0005] However, the cable connection structure can only collect stimulation signals, and cannot simultaneously collect signals and output monopolar stimulation. CONTENT

[0006] The technical problem to be solved by the utility model is to solve the deficiencies in the prior art, and to provide a cable connection device which can simultaneously collect stimulation signals and output monopolar stimulation.

[0007] The utility model adopts the technical scheme that:

[0008] A cable connection device comprises:

[0009] an adapter box, a multi-core cable, a plug, a single-core cable and a connection terminal;

[0010] The adapter box is provided with a plurality of elastic sheets;

[0011] The multi-core cable has a plurality of wire cores, each of which is electrically connected with one of the elastic sheets respectively, and the multi-core cable has a plug at the end thereof, which is used for being plugged on a test stimulator having both signal collection function and stimulation signal output function.

[0012] The single-core cable is electrically connected with one of the wire cores in the multi-core cable which is not electrically connected with the elastic sheet.

[0013] Preferably, the connecting terminal is a crocodile clip.

[0014] Preferably, the multi-core cable comprises nine wire cores, eight of which are electrically connected with eight elastic sheets respectively, and the remaining one is electrically connected with the single-core cable.

[0015] Preferably, the adapter box is provided with a circuit board, the circuit board is provided with first pads and the elastic sheets are welded on the first pads.

[0016] Preferably, the back side of the circuit board is provided with second pads which are electrically connected with the elastic sheets, the second pads are electrically connected with the first pads one by one, and the second pads are electrically connected with the wire cores of the multi-core cable one by one.

[0017] Preferably, the circuit board is further provided with electrically connected third pads and fourth pads, the third pads are electrically connected with one of the wire cores of the multi-core cable, and the fourth pads are electrically connected with the single-core cable.

[0018] Preferably, the third pads and the fourth pads are located on the same side or different sides of the circuit board.

[0019] The cable connecting device has the advantages that:

[0020] The cable connecting device of the application is provided with a wire core which is electrically connected with the single-core cable, and the connecting terminal on the single-core cable is clamped on the head frame to generate a bias voltage to offset the influence of the polarization voltage on the signal when the test stimulator collects the electric signal. When the connecting terminal on the single-core cable is clamped on the cannula needle, the human body is stimulated by forming a stimulation loop, so that the stimulation effect of the monopolar stimulation under different stimulation parameters can be tested by the test stimulator before the formal implantation of the stimulator in the body, and the confirmation and adjustment of the stimulation parameters after the implantation can be completely avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] The technical solutions of the present application are further described below in combination with the drawings and examples.

[0022] Figure 1 is a structural schematic diagram of a cable connecting device of an embodiment of the present application;

[0023] Figure 2 is a structural schematic diagram of a cable connecting device of an embodiment of the present application (exploded for the adapter box);

[0024] Figure 3 is a sectional view of an adapter box of an embodiment of the present application;

[0025] Figure 4 is a back view of a circuit board of an embodiment of the present application;

[0026] Figure 5 is a structural schematic diagram of an electrode connecting end;

[0027] Figure 1 and Figure 2 In the multi-core cable and the single-core cable in FIGS. 1 to 15, the lengths are omitted by taking a cut-off drawing.

[0028] The reference numerals in the drawings are as follows:

[0029] 2 electrode connecting end;

[0030] 11 adapter box;

[0031] 12 multi-core cable;

[0032] 13 plug;

[0033] 14 single-core cable;

[0034] 15 connecting terminal;

[0035] 111 static shell;

[0036] 112 dynamic shell;

[0037] 113 upper inner shell;

[0038] 114 lower inner shell;

[0039] 115 circuit board;

[0040] 116 spring plate;

[0041] 1151 second solder pad;

[0042] 1152 third solder pad;

[0043] 1153 fourth solder pad. DETAILED DESCRIPTION

[0044] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0047] The technical solutions of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0048] Embodiment

[0049] The present embodiment provides a cable connection device, as shown in Figure 1 , comprising:

[0050] The adapter box 11, the multi-core cable 12, the plug 13, the single-core cable 14 and the connection terminal 15;

[0051] The adapter box 11 is provided with a plurality of elastic sheets 116, and the elastic sheets 116 are used to connect with the contacts on the electrodes;

[0052] The multi-core cable 12 has a plurality of wire cores, each of which is electrically connected to the elastic sheet 116 one by one, and the end of the multi-core cable 12 is the plug 13, which is used to be inserted into the test stimulator with signal acquisition function and stimulation signal output function;

[0053] The end of the single-core cable 14 is a connecting terminal 15, which is electrically connected with one of the cores of the multi-core cable 12 that is not electrically connected with the spring sheet 116.

[0054] When the test stimulator collects the electrical signal (the electrical signal in the human body), the connecting terminal 15 is used to clamp the head frame to form an electrical connection and an equipotential with the head frame. The physiological signal collected by the electrode is transmitted to the test stimulator through the spring sheet 116 and the multi-core cable 12 electrically connected with the spring sheet 116. The test stimulator can output a set electrical signal (a set bias voltage) through one core, and the bias voltage can be used to offset the influence of the polarization voltage on the signal through the multi-core cable 12, the single-core cable 14, the connecting terminal 15, the head frame, and the human body.

[0055] When the test stimulator outputs a stimulation signal, the connecting terminal 15 is used to clamp the trocar, and the test stimulator can output a stimulation signal, wherein the first stimulation signal is connected to the brain through one core of the multi-core cable 12, the circuit board 115, the single-core cable 14, and the trocar, and the stimulation signal negative electrode is directed to the target stimulation point through the core of the multi-core cable 12 electrically connected with the spring sheet 116, the spring sheet 116, and the electrode, and a current loop is formed between the electrode and the trocar to stimulate the human body unipolarly.

[0056] The functions of collecting the electrical signal by the test stimulator and outputting the stimulation signal by the test stimulator are easy to realize in the prior art. The programmable instrument of the company can fully realize the above functions.

[0057] Therefore, the cable connecting device of the present application has one more core drawn out from the plug 13 and electrically connected with the single-core cable 14, and the connecting terminal 15 on the single-core cable 14 is clamped on the head frame to generate a bias voltage to offset the influence of the polarization voltage on the signal when the test stimulator collects the electrical signal. When the connecting terminal 15 on the single-core cable 14 is clamped on the trocar, the stimulation loop is formed to stimulate the human body unipolarly, and the stimulation effect of the unipolar stimulation under different stimulation parameters can be tested by the test stimulator before the formal implantation of the stimulator in the body, so that the adjustment of the stimulation parameters after the implantation can be reduced or even completely avoided.

[0058] Further, the connecting terminal 15 is a crocodile clip. The crocodile clip can realize fast electrical connection, and is directly clamped on the corresponding component during use.

[0059] Further, the multi-core cable 12 includes nine cores, eight of which are electrically connected with the eight spring sheets 116 one by one, and the remaining one core is electrically connected with the single-core cable 14.

[0060] Further, the adapter box 11 is provided with a circuit board 115, the circuit board 115 is provided with first pads and the elastic sheets 116 are welded to the first pads, and the cores of the multi-core cable 12 are welded to the circuit board 115 respectively.

[0061] Further, the back side of the circuit board 115 provided with the elastic sheets 116 is provided with second pads 1151 which are same in number as the elastic sheets 116, the second pads 1151 are electrically connected with the first pads (position corresponding, passing through the circuit board 115), and the second pads 1151 are electrically connected with the cores of the multi-core cable 12 respectively.

[0062] Further, the circuit board 115 is further provided with electrically connected third pads 1152 and fourth pads 1153, the third pads 1152 are electrically connected with one core of the multi-core cable 12, and the fourth pads 1153 are electrically connected with the single-core cable 14. That is, the following path is formed: one core of the multi-core cable 12-third pad 1152-fourth pad 1153-single-core cable 14.

[0063] Further, the third pads 1152 and the fourth pads 1153 are located on the same side or different sides of the circuit board.

[0064] The circuit board 115 can be used to concentrate various cores (wires) and prevent the cores (wires) from being messy.

[0065] The adapter box 11 includes a static shell 111, a dynamic shell 112, an upper inner shell 113 and a lower inner shell 114; the circuit board 115 and the elastic sheets 116 are arranged in the accommodating cavity formed between the upper inner shell 113 and the lower inner shell 114. The circuit board 115 is installed on the platform of the inner space formed by the lower inner shell 114 and the upper inner shell 113, and the circuit board 115 is welded with eight elastic sheets 116 (the specific number is determined according to actual requirements). The elastic sheets 116 pass through the upper inner shell 113 to reach the recess, and the electrode connecting end 2 is placed in the recess to make the electrode contact and the elastic sheet 116 contact to form electrical connection. The adapter box 11 is not the point of the utility model of the present application, and its structure can use the prior art.

[0066] The structure of the head frame can refer to Chinese patent document CN210931904U.

[0067] Based on the above ideal embodiments according to the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A cable connection device, characterized in that, include: Adapter boxes, multi-core cables, plugs, single-core cables, and connecting terminals; The adapter box is equipped with several spring clips; The multi-core cable has several cores, each of which is electrically connected to the spring piece. The end of the multi-core cable is a plug, which is used to connect to a test stimulator that has both signal acquisition and stimulation signal output functions. The end of the single-core cable is a connection terminal, and the single-core cable is electrically connected to one of the cores of the multi-core cable that is not electrically connected to the spring.

2. The cable connection device according to claim 1, characterized in that, The connecting terminal is an alligator clip.

3. The cable connection device according to claim 1, characterized in that, The multi-core cable includes nine cores, eight of which are electrically connected to the eight spring clips, and the remaining core is electrically connected to the single-core cable.

4. The cable connection device according to claim 1, characterized in that, The adapter box contains a circuit board with a first solder pad and the spring piece soldered thereon.

5. The cable connection device according to claim 4, characterized in that, The circuit board is configured such that one side of the back of the spring has the same number of second pads as the spring, the second pads are electrically connected to the first pads one by one, and the second pads are electrically connected to the cores of the multi-core cable one by one.

6. The cable connection device according to claim 5, characterized in that, The circuit board is also provided with a third pad and a fourth pad that are electrically connected. The third pad is electrically connected to one core of the multi-core cable, and the fourth pad is electrically connected to the single-core cable.

7. The cable connection device according to claim 6, characterized in that, The third and fourth pads are located on the same side or different sides of the circuit board.

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