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CN-224233273-U - Wire fixing structure

CN224233273UCN 224233273 UCN224233273 UCN 224233273UCN-224233273-U

Abstract

The utility model discloses a wire fixing structure, and belongs to the technical field of medical appliances. The wire fixing structure comprises a limiting unit and a fixing unit, wherein the limiting unit comprises a connecting part and at least two clamping parts, the two adjacent clamping parts are connected through the connecting part, each clamping part is bent and surrounded to form an arc limiting groove, the arc limiting grooves are used for gathering and limiting wires, the fixing unit comprises two fixing parts which are respectively arranged at two ends of the limiting unit and are connected with the clamping parts at the end parts of the limiting unit, and the fixing parts are outwards stretched and can reduce the height of the limiting unit and are used for clamping the wires. The utility model does not need to be shaped manually by a doctor, and the lead positioned in the bone grinding groove can be compressed for fixing the position of the lead on the skull, thereby ensuring the normal operation of DBS operation.

Inventors

  • HAO JINGXIANG
  • LUO ZHIJUN
  • MA FUYE

Assignees

  • 景昱医疗科技（苏州）股份有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (10)

  1. 1. Wire fixed knot constructs, its characterized in that includes: The limiting unit (1) comprises a connecting part (11) and at least two clamping parts (12), wherein two adjacent clamping parts (12) are connected through the connecting part (11), each clamping part (12) is bent to form a circular arc limiting groove (121), and the circular arc limiting grooves (121) are used for gathering and limiting wires; The fixing unit (2) comprises at least two fixing parts (21), wherein the fixing parts (21) are respectively arranged at two ends of the limiting unit (1), the fixing parts (21) are connected with the clamping parts (12) arranged at the end parts of the limiting unit (1), and the fixing parts (21) are stretched outwards to reduce the height of the limiting unit (1) and are used for clamping the wires.
  2. 2. The wire fixing structure (100) according to claim 1, wherein the limiting unit (1) comprises two clamping portions (12), and an extension portion (13) is arranged at a connection transition of each clamping portion (12) and the connecting portion (11) in an extending manner along a bending path direction of the clamping portion (12).
  3. 3. The wire fixation structure (100) of claim 2, wherein the clamping portion (12) and the extension portion (13) form a central angle greater than 180 degrees and less than 360 degrees.
  4. 4. The wire fixing structure (100) according to claim 1, wherein the limiting unit (1) includes three clamping portions (12), the three clamping portions (12) being connected in sequence, and/or The central angle of the clamping part (12) is not smaller than 180 degrees.
  5. 5. The wire fixing structure (100) according to claim 1, wherein a central angle of the clamping portion (12) is not greater than 90 degrees, the connecting portion (11) is flat, and the circular arc-shaped limiting grooves (121) of two adjacent clamping portions (12) are communicated.
  6. 6. The wire fixing structure (100) according to claim 5, wherein a clamping unit (3) is provided to extend from a side surface of the connection portion (11), the clamping unit (3) includes an extension portion (31) and two tightening portions (32), the extension portion (31) is connected to the connection portion (11), and the two tightening portions (32) are provided to both ends of the extension portion (31), respectively.
  7. 7. The wire fixing structure (100) according to claim 6, wherein the opening formed between the extension portion (31) and the two tightening portions (32) is gradually reduced in a direction approaching the limit unit (1).
  8. 8. The wire fixing structure (100) according to any one of claims 1 to 7, wherein the groove wall of the circular arc-shaped limiting groove (121) is provided with an anti-slip structure (122), and/or The fixing part (21) is provided with a fixing hole (211), and the fastener (200) can pass through the fixing hole (211) to be connected with the skull fixing surface (300).
  9. 9. The wire fixing structure (100) according to claim 8, wherein the limiting unit (1) and the fixing unit (2) are an integrally formed structure.
  10. 10. The wire fixation structure (100) of claim 8, wherein the wire fixation structure (100) is made of pure titanium metal, titanium alloy, stainless steel, nickel-titanium alloy or plastic.

Description

Wire fixing structure Technical Field The utility model relates to the technical field of medical instruments, in particular to a wire fixing structure. Background Deep brain electro-stimulation (Deep Brain Stimulation, abbreviated as DBS) is a leading edge of the modern neurosurgery field and is a very innovative operation technology, and has shown remarkable application value in clinical treatment in recent years. The technology relies mainly on a sophisticated implantable medical device system, which covers three key components, an implantable pulse generator (Implantable Pulse Generator, IPG), an extension lead and an electrode lead. An IPG, which is the "power source" of the overall system, is an implantable miniature electronic device that has the ability to generate electrical pulses of a specific frequency, amplitude and pulse width. The extension wires then play a critical "bridge" role, which is closely connected to the IPG as a reliable medium for electrical stimulation signal delivery. By extending the lead, the electrical stimulation generated by the IPG can be transmitted to the electrode lead without error. The electrode lead is taken as a part which is directly contacted with brain tissue of a patient, and the structural design and the function implementation are very exquisite. The electrode contacts are distributed on the electrode contacts, and the contacts are just like accurate signal transmitters, and can accurately deliver the electric stimulation to a specific area of the internal tissue according to preset parameters after receiving the electric stimulation transmitted by the extension lead. During the actual operation of DBS surgery, neurosurgeons will precisely locate a specific target area within the patient's brain by means of advanced imaging techniques and stereotactic surgical equipment. Electrode leads are then carefully implanted into these target areas. At the same time, the IPG is implanted into subcutaneous tissue of the patient's chest or abdomen and connected to the implanted electrode lead by an extension lead. Once the whole system is installed and debugged, the IPG continuously distributes electric pulses according to a preset program. These electrical impulses are capable of precise electrical stimulation of a specific brain region, thereby effectively modulating abnormal neural electrical activity of the brain region. Through the regulating mechanism, the DBS operation can obviously improve symptoms of various nervous system diseases, such as tremors, myotonia, bradykinesia and the like of patients with parkinsonism, and the like of patients with essential tremors, such as involuntary tremors of limbs and the like, so that the life quality of the patients is greatly improved. In the actual operation process, one end of the extension wire is provided with a butt-joint module for inserting the power supply wire, and the electrode wire is electrically connected with the extension wire after being inserted into the butt-joint module of the extension wire. At present, a butt joint module is fixed by adopting a straight plate-shaped metal connecting sheet, and a doctor is usually required to manually shape the straight plate so as to match the appearance of the butt joint module for extending the lead. In addition, when the doctor fixes the butt-joint module (namely the connecting part of the extension lead and the electrode lead), the doctor can also decide whether to grind the bone groove according to the actual situation so as to reduce the height of the butt-joint module protruding out of the skull. In this case, a single metal connecting piece is often not suitable, and it is necessary to prepare metal connecting pieces of various specifications, so that the treatment cost increases. Disclosure of utility model The utility model aims to provide a lead fixing structure which is not only shaped manually by a doctor, but also can be pressed tightly by a lead positioned in a bone grinding groove, and is used for fixing the position of the lead on a skull and ensuring the normal operation of DBS operation. In order to achieve the above object, the following technical scheme is provided: Wire fixed knot constructs, includes: The limiting unit comprises a connecting part and at least two clamping parts, wherein two adjacent clamping parts are connected through the connecting part, each clamping part is bent to form an arc-shaped limiting groove, and the arc-shaped limiting grooves are used for gathering and limiting the wires; The fixing unit comprises at least two fixing parts, wherein the fixing parts are respectively arranged at two ends of the limiting unit, the fixing parts are connected with the clamping parts positioned at the end parts of the limiting unit, and the fixing parts are outwards stretched to reduce the height of the limiting unit and are used for clamping the lead. As an alternative scheme of the wire fixing structure, the groove wall of the circular a