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CN-224203234-U - A switch box for leakage current and patient auxiliary current measurement

CN224203234UCN 224203234 UCN224203234 UCN 224203234UCN-224203234-U

Abstract

The utility model discloses a switching box for measuring leakage current and auxiliary current of a patient, which comprises a switching box, a switching knob, a blocking component and a blocking component, wherein the switching box is used for connecting a stimulator electrode and a leakage measuring instrument in the leakage current measuring process, the switching knob is rotationally connected to the switching box and used for selecting different wave bands and different test modes, the switching box is provided with a box body and a switching hole arranged on the box body, the switching hole is respectively connected with the stimulator electrode and the leakage measuring instrument through a switching wire, the blocking component is arranged between the switching box and the switching knob and used for improving the blocking strength between the switching knob and the switching box, so that a blocking ball can be accurately clamped into a corresponding groove all the time when the knob is switched at any gear, the gear drifting risk caused by mechanical gaps or external vibration is eliminated, and the high precision and the operation stability of test mode selection are ensured.

Inventors

  • JIN LINGEN

Assignees

  • 苏州市东方电子仪器厂

Dates

Publication Date
20260505
Application Date
20250424

Claims (9)

  1. 1. A switching box for leakage current and patient-assisted current measurement, comprising: the switching box (1) is used for connecting the electrode of the stimulator and the leakage measuring instrument in the leakage current measuring process; A transfer knob (2), wherein the transfer knob (2) is rotationally connected to the switching box (1), the transfer knob (2) is used for selecting different wave bands and different test modes, and The blocking assembly (3), the blocking assembly (3) set up in between switch box (1) with changeover knob (2), the blocking assembly (3) is used for improving changeover knob (2) with switch the retarding strength between box (1).
  2. 2. The switching box for leakage current and patient auxiliary current measurement according to claim 1, wherein the switching box (1) is provided with a box body and a switching hole (11) arranged on the box body, and the switching hole (11) is respectively connected with a stimulator electrode and a leakage measuring instrument through a switching wire.
  3. 3. The switching box for leakage current and patient auxiliary current measurement according to claim 1, wherein a plurality of placing holes (10) are uniformly formed in the inner side of the switching box (1), and the blocking component (3) is arranged in the placing holes (10).
  4. 4. A switching box for leakage current and patient auxiliary current measurement according to claim 3, wherein a plurality of blocking grooves (20) are uniformly formed in the bottom of the switching knob (2), each blocking groove (20) is arranged in a fifth circle, and stacking portions are arranged on two symmetrical sides of the blocking grooves (20).
  5. 5. A switching box for leakage current and patient-assisted current measurement according to claim 4, wherein the placement holes (10) are arranged in a stepped cylindrical hole, the placement holes (10) are arranged in a penetrating manner at one end close to the blocking groove (20) and are arranged in a four fifth circle, and one placement hole (10) and one blocking groove (20) are spliced to form a complete spherical groove.
  6. 6. The switching box for leakage current and patient auxiliary current measurement according to claim 5, wherein the blocking component (3) is provided with a blocking ball (30) and a thimble (31) arranged at the bottom of the blocking ball (30), a spring (32) is sleeved on the thimble (31), and two ends of the spring (32) are fixedly connected with the thimble (31) and the placement hole respectively.
  7. 7. A switching box for leakage current and patient-assisted current measurement according to claim 6, wherein the ejector pin (31) comprises a push plate and a push rod fixedly connected with the push plate, and the push plate is slidingly connected with the placement hole.
  8. 8. A switching box for leakage current and patient-assisted current measurement according to claim 7, characterized in that the diameter of the placement hole (10) is the same as the diameter of the blocking ball (30), the blocking ball (30) being the same as the spherical groove.
  9. 9. The switching box for leakage current and patient-assisted current measurement according to claim 7, wherein the push plate is arranged in a conical shape, the top of the push plate is arranged in a circular arc shape, the push plate is slidably connected with the placement hole (10), and the bottom of the push rod is arranged in a circular plate shape and slidably connected with the placement hole (10).

Description

A switch box for leakage current and patient auxiliary current measurement Technical Field The utility model relates to the field of switching boxes, in particular to a switching box for leakage current and patient auxiliary current measurement. Background In the field of safety detection of medical equipment, in particular to leakage current and patient auxiliary current measurement of equipment such as a heart electrophysiological stimulator, a test switching box is used as a core component of multichannel signal time-sharing gating, and the accuracy of a detection result is directly related to the accuracy and operation stability of gear switching. The traditional switching box generally adopts the structural design that a linear spring thimble is matched with a plane push plate, and has obvious technical bottlenecks that firstly, the spring is easy to cause knob damping force fluctuation due to uneven stress of a push plate contact surface in the compression/rebound process, the rotation resistance is large, namely, the rotation resistance is small, when the resistance is too small, the knob is easy to cause unexpected sliding of gears due to slight touch or equipment vibration, so that a test mode is erroneously switched, and when the resistance is too large, two hands are needed to operate, operator fatigue is easy to be caused, and the detection efficiency is seriously influenced. Secondly, the hard contact structure of the metal thimble and the push plate is easy to generate mechanical abrasion in frequent rotation, so that damping instability is aggravated after long-term use, contact dislocation or virtual connection is caused, and the risk of test data drift and even equipment short circuit is caused. In addition, the existing switching box adopts a single-channel serial test mode, and needs to repeatedly plug and pull wires to switch different electrode channels (such as an output electrode and a sensing electrode), so that the operation is complex, poor contact is easily caused by human false touch, and the severe requirements of medical detection scenes on high efficiency and safety are difficult to meet. Accordingly, there is a need for an improved switching box for leakage current and patient-assisted current measurement in the prior art to address the above-described problems. Disclosure of Invention The utility model overcomes the defects of the prior art, provides a switching box for leakage current and patient auxiliary current measurement, and aims to solve the problems in the prior art. In order to achieve the above purpose, the utility model adopts the technical scheme that the switching box for measuring leakage current and auxiliary current of a patient comprises: The switching box is used for connecting the electrode of the stimulator and the leakage measuring instrument in the leakage current measuring process; A switching knob rotatably connected to the switching box for selecting different wave bands and different test modes, and The blocking component is arranged between the switching box and the switching knob and is used for improving blocking strength between the switching knob and the switching box. In a preferred embodiment of the utility model, the switching box is provided with a box body and a switching hole arranged on the box body, wherein the switching hole is respectively connected with the electrode of the stimulator and the electric leakage measuring instrument through a switching wire. In a preferred embodiment of the present utility model, the inner side of the switching box is uniformly provided with a plurality of placement holes, and the blocking assembly is arranged in the placement holes. In a preferred embodiment of the utility model, a plurality of blocking grooves are uniformly formed in the bottom of the transfer knob, each blocking groove is arranged in a fifth circle, and stacking parts are arranged on two symmetrical sides of each blocking groove. In a preferred embodiment of the utility model, the placement holes are arranged in a stepped cylindrical hole, the placement holes are arranged in a penetrating way at one end close to the retarding groove and are arranged in a four-fifthly circle shape, and one placement hole and one retarding groove are spliced to form a complete spherical groove. In a preferred embodiment of the utility model, the blocking assembly is provided with a blocking ball and a thimble arranged at the bottom of the blocking ball, wherein a spring is sleeved on the thimble, and two ends of the spring are fixedly connected with the thimble and the placing groove respectively. In a preferred embodiment of the utility model, the ejector pin comprises a push plate and a push rod fixedly connected with the push plate, and the push plate is in sliding connection with the hole. In a preferred embodiment of the utility model, the diameter of the placement hole is the same as the diameter of the blocking ball, and the blocking ball is th