Cable connecting device

Abstract

The invention 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] This application belongs to the technical field of implantable medical devices, and particularly relates to a cable connection device. Background Art

[0002] The deep brain stimulation (DNS) system belongs to a type of implantable nerve stimulation system. The deep brain stimulation system mainly includes an implantable nerve stimulator implanted in the body, a stimulation electrode implanted in the body, and a programming device located outside the body. The stimulation electrode is connected to the implantable nerve stimulator to output the electrical stimulation signal generated by the implantable nerve stimulator to a specific nerve site to generate electrical stimulation, thereby restoring the normal human function of the corresponding site.

[0003] During the deep brain stimulation implantation surgery, the doctor first needs to determine the target position in the patient's brain through a three-dimensional stereotactic positioning device including a head frame, insert the electrode wire into the corresponding target position through a trocar, and then use a test stimulator to output pulses to the electrode to test the stimulation effect and determine the accuracy of the electrode implantation position. At this time, a cable is needed 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, including: a self-locking test cable for connecting a conductive element, and the self-locking test cable includes: 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 its own housing; a conductive element connection end, and the formed interface form corresponds to the self-locking connector.

[0005] However, this cable connection structure can only collect stimulation signals and cannot perform signal collection and monopolar stimulation simultaneously. Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to provide a cable connection device that can simultaneously collect stimulation signals and output monopolar stimulation to solve the deficiencies in the prior art.

[0007] The technical solution adopted by the present invention to solve its technical problems is:

[0008] A cable connection device includes:

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

[0010] A number of elastic pieces are arranged in the adapter box;

[0011] The multi-core cable has a plurality of cores, each core is electrically connected to the elastic piece one by one, and the end of the multi-core cable is a plug, which is used to be plugged into a test stimulator with both signal acquisition function and stimulation signal output function;

[0012] The end of the single-core cable is a connection terminal, and the single-core cable is electrically connected to one of the cores in the multi-core cable that is not electrically connected to the elastic piece;

[0013] When the test stimulator collects electrical signals, the connection terminal is used to clamp the head frame to form an electrical connection and form an equipotential with the head frame; the physiological signals collected by the electrode are transmitted to the test stimulator through the elastic piece and the multi-core cable electrically connected to the elastic piece; the test stimulator will separately send a set electrical signal through a core, and form a bias voltage through the multi-core cable, single-core cable, connection terminal, head frame to the human body;

[0014] When the test stimulator outputs a stimulation signal, after the connection terminal is clamped on the trocar, the first path of the stimulation signal is connected to the brain through a core of the multi-core cable, circuit board, single-core cable, and trocar, and the negative pole of the stimulation signal points to the target stimulation target through the core electrically connected to the elastic piece in the multi-core cable, elastic piece and electrode, and a current loop is formed between the electrode and the trocar to perform monopolar stimulation on the human body.

[0015] Preferably, in the cable connection device of the present invention, the connection terminal is an alligator clip.

[0016] Preferably, in the cable connection device of the present invention, the multi-core cable includes nine cores, eight of which are electrically connected to the eight elastic pieces one by one, and the remaining one core is electrically connected to the single-core cable.

[0017] Preferably, in the cable connection device of the present invention, a circuit board is arranged in the adapter box, and the circuit board has a first pad and the elastic piece is welded thereon.

[0018] Preferably, in the cable connection device of the present invention, on the back side of the circuit board where the elastic piece is arranged, there are second pads with the same number as the elastic pieces, 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.

[0019] Preferably, in the cable connection device of the present invention, a third pad and a fourth pad which are electrically connected are further arranged on the circuit board, the third pad is electrically connected to a core of the multi-core cable, and the fourth pad is electrically connected to the single-core cable.

[0020] Preferably, in the cable connection device of the present invention, the third pad and the fourth pad are located on the same side or different sides of the circuit board.

[0021] The beneficial effects of the present invention are:

[0022] For the cable connection device of the present application, an additional wire core is led out from the plug to form an electrical connection with a single-core cable. The connection terminal on the single-core cable is clamped on the head frame to generate a bias voltage when the test stimulator collects electrical signals, so as to offset the influence of the polarization voltage on the signal. When the connection terminal on the single-core cable is clamped on the trocar needle, monopolar stimulation of the human body can be achieved by forming a stimulation circuit. It can realize that when the stimulator is formally implanted into the body, the test stimulator can first test the stimulation effect during monopolar stimulation under different stimulation parameters, reducing the need for confirmation and adjustment of the stimulation parameters after implantation, and even completely eliminating the need for post-implantation adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution of the present application will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 is a schematic structural diagram of the cable connection device according to an embodiment of the present application;

[0025] Figure 2 is a schematic structural diagram of the cable connection device according to an embodiment of the present application (the adapter box is exploded);

[0026] Figure 3 is a cross-sectional view of the adapter box according to an embodiment of the present application;

[0027] Figure 4 is a rear view of the circuit board according to an embodiment of the present application;

[0028] Figure 5 is a schematic structural diagram of the electrode connection end;

[0029] Figure 1 and Figure 2 In, the multi-core cable and the single-core cable adopt a truncated drawing method to omit the length.

[0030] The reference numerals in the drawings are:

[0031] 2 Electrode connection end;

[0032] 11 Adapter box;

[0033] 12 Multi-core cable;

[0034] 13 Plug;

[0035] 14 Single-core cable;

[0036] 15 Connection terminal;

[0037] 111 Static housing;

[0038] 112 Moving housing;

[0039] 113 Upper inner shell;

[0040] 114 Lower inner shell;

[0041] 115 Circuit board;

[0042] 116 Elastic sheet;

[0043] 1151 Second pad;

[0044] 1152 Third pad;

[0045] 1153 Fourth pad. Specific implementation manner

[0046] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

[0048] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0049] The technical solution of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0050] Embodiment

[0051] This embodiment provides a cable connection device, as Figure 1 shown, including:

[0052] Adapter box 11, multi-core cable 12, plug 13, single-core cable 14, and connection terminal 15;

[0053] A number of elastic pieces 116 are arranged inside the adapter box 11, and the elastic pieces 116 are used to connect with the contacts on the electrode;

[0054] The multi-core cable 12 has a number of cores, and each core is electrically connected to the elastic piece 116 one by one. The end of the multi-core cable 12 is a plug 13, and the plug 13 is used to be plugged into a test stimulator with both signal acquisition function and stimulation signal output function;

[0055] The end of the single-core cable 14 is a connection terminal 15, and the single-core cable 14 is electrically connected to one of the cores in the multi-core cable 12 that is not electrically connected to the elastic piece 116.

[0056] When the test stimulator acquires electrical signals (electrical signals in the human body), the connection terminal 15 is used to clamp the head frame to form an electrical connection and form an equipotential with the head frame. The physiological signals collected by the electrode are transmitted to the test stimulator through the elastic piece 116 and the multi-core cable 12 electrically connected to the elastic piece 116. The test stimulator will separately send a set electrical signal (set bias voltage) through a core, and form a bias voltage through the multi-core cable 12, single-core cable 14, connection terminal 15, head frame to the human body. The bias voltage can be used to offset the influence of the polarization-resistant voltage on the signal.

[0057] When the test stimulator outputs a stimulation signal, when the connection terminal 15 is clamped on the trocar, the test stimulator can send a stimulation signal. Among them, the first-way stimulation signal is connected to the brain through a core of the multi-core cable 12, circuit board 115, single-core cable 14, and trocar. The negative pole of the stimulation signal points to the target stimulation target through the core electrically connected to the elastic piece 116 in the multi-core cable 12, elastic piece 116, and electrode. An electric current loop is formed between the electrode and the trocar to perform monopolar stimulation on the human body.

[0058] Therefore, for the cable connection device of the present application, an additional core is led out from the plug 13 and electrically connected to the single-core cable 14. The connection 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-resistant voltage on the signal when the test stimulator acquires electrical signals. When the connection terminal 15 on the single-core cable 14 is clamped on the trocar, monopolar stimulation is performed on the human body by forming a stimulation loop, which can realize that when the in-vivo stimulator is officially implanted, the test stimulator can first test the stimulation effect during monopolar stimulation under different stimulation parameters, and reduce the need for confirmation and adjustment of stimulation parameters after implantation, and even completely eliminate the need for post-implantation adjustment.

[0059] Further, the connection terminal 15 is an alligator clip. The alligator clip can achieve quick electrical connection. When in use, it can be directly clipped onto the corresponding component.

[0060] Further, the multi-core cable 12 includes nine wire cores, among which eight wire cores are electrically connected to the eight elastic pieces 116 one by one, and the remaining one wire core is electrically connected to the single-core cable 14.

[0061] Further, a circuit board 115 is arranged inside the adapter box 11. The circuit board 115 has first pads and the elastic pieces 116 are welded thereon. The wire cores of the multi-core cable 12 are respectively welded on the circuit board 115.

[0062] Further, on the back side of the circuit board 115 where the elastic pieces 116 are arranged, there are second pads 1151 having the same number as the elastic pieces 116. The second pads 1151 are electrically connected to the first pads one by one (corresponding in position and passing through the circuit board 115), and the second pads 1151 are electrically connected to the wire cores of the multi-core cable 12 one by one.

[0063] Further, third pads 1152 and fourth pads 1153 which are electrically connected are also arranged on the circuit board 115. The third pads 1152 are electrically connected to one wire core of the multi-core cable 12, and the fourth pads 1153 are electrically connected to the single-core cable 14. That is, the following path is formed: one wire core of the multi-core cable 12 - the third pads 1152 - the fourth pads 1153 - the single-core cable 14.

[0064] Further, the third pads 1152 and the fourth pads 1153 are located on the same side or different sides of the circuit board.

[0065] Using the circuit board 115 can gather various wire cores (wires) together to prevent the wire cores (wires) from being messy.

[0066] The adapter box 11 includes a static outer shell 111, a movable outer shell 112, an upper inner shell 113 and a lower inner shell 114; the circuit board 115 and the elastic pieces 116 are arranged in the accommodation cavity formed between the upper inner shell 113 and the lower inner shell 114. The circuit board 115 is installed on the platform in the internal space formed by the lower inner shell 114 and the upper inner shell 113, and 8 elastic pieces 116 are welded on the circuit board 115 (the specific number is determined according to actual requirements). The elastic pieces 116 pass through the reaching grooves of the upper inner shell 113, and the electrode connection end 2 is placed into the grooves so that the electrode contacts are in contact with the elastic pieces 116 to form an electrical connection. The structure of the adapter box 11 is not the inventive point of this application, and its structure can use the existing technology.

[0067] The structure of the headrest can refer to the Chinese patent document CN210931904U.

[0068] Inspired by the ideal embodiments based on the present application above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this application. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A cable connection device, characterized in that: include: Adapter boxes, multi-core cables, plugs, single-core cables and connection terminals; A plurality of spring pieces are arranged in the adapter box; The multi-core cable has a plurality of cores, each core is electrically connected to the springs one by one, and the end of the multi-core cable is a plug, which is used to be plugged into a test stimulator with both signal acquisition function and stimulation signal output function; The end of the single-core cable is a connection terminal, and the single-core cable is electrically connected to a core of the multi-core cable that is not electrically connected to the spring sheet; When the test stimulator collects electrical signals, the connecting terminal is used to clamp the head frame to form an electrical connection and form an equipotential with the head frame; the physiological signals collected by the electrodes are transmitted to the test stimulator through the shrapnel and the multi-core cable electrically connected to the shrapnel; the test stimulator will send out a set electrical signal through a single core, and form a bias voltage through the multi-core cable, single-core cable, connecting terminal, head frame to the human body; When the test stimulator outputs a stimulation signal, the connecting terminal is used to clamp on the cannula needle, and the first stimulation signal is connected to the brain via a core of the multi-core cable, a circuit board, a single-core cable, and a cannula needle. The negative pole of the stimulation signal is directed to the target stimulation target via the core of the multi-core cable electrically connected to the shrapnel, the shrapnel, and the electrode in the multi-core cable. A current loop is formed between the electrode and the cannula needle to perform monopolar stimulation on the human body.

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 pieces one by one, and the remaining core is electrically connected to the single-core cable.

4. The cable connection device according to claim 1, characterized in that: A circuit board is arranged in the adapter box, and the circuit board has a first soldering pad and is welded with the spring sheet.

5. The cable connection device according to claim 4, characterized in that: The back side of the circuit board where the shrapnel is arranged has second pads with the same number as the shrapnel, 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 solder pad and a fourth solder pad which are electrically connected. The third solder pad is electrically connected to a core of the multi-core cable, and the fourth solder pad is electrically connected to the single-core cable.

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

Images