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CN-224220207-U - Tearable trocar and implantation system

CN224220207UCN 224220207 UCN224220207 UCN 224220207UCN-224220207-U

Abstract

The utility model discloses a tearable trocar and an implantation system, and belongs to the technical field of medical instruments. The utility model provides a can tear trocar, trocar are used for electrode wire to pass, and the trocar has first end and second end, and electrode wire penetrates from first end, wears out from the second end direction, and the trocar includes main part and the parting bead of arranging along circumference, and junction between the two is equipped with the tear line, and the parting bead can tear apart from the main part to form the breach in the main part, and the breach communicates with outside at first end. The tearable trocar and the implantation system can meet the implantation of a single electrode lead and a plurality of bifurcation electrode leads, and the trocar is convenient to withdraw.

Inventors

  • HAO JINGXIANG
  • LUO ZHIJUN
  • ZHU WEIRAN
  • MA FUYE

Assignees

  • 景昱医疗科技（苏州）股份有限公司

Dates

Publication Date
20260512
Application Date
20250403

Claims (10)

  1. 1. The utility model provides a tearable trocar, trocar (1) is used for electrode wire (5) to pass, its characterized in that, trocar (1) have first end (1A) and second end (1B), electrode wire (5) follow first end (1A) penetrates, follow second end (1B) direction wears out, trocar (1) are equipped with the tear line including main part (11) and parting strip (12) of arranging along circumference, junction between the two, parting strip (12) can follow main part (11) tear open, in order to form the breach on main part (11), just the breach is in first end (1A) and outside intercommunication.
  2. 2. The tearable trocar of claim 1, wherein the tear strength of the material of the separation band (12) is smaller than the tear strength of the material of the main body (11).
  3. 3. The tearable trocar according to claim 1, characterized in that the trocar (1) comprises at least one of the separation strips (12) arranged circumferentially.
  4. 4. The tearable trocar according to claim 1, characterized in that the trocar (1) is circumferentially provided with at least two of the separation strips (12), that at least two of the separation strips (12) are arranged consecutively, that the tear strength of the material of adjacent separation strips (12) is different.
  5. 5. The tearable trocar of claim 1, wherein the separation band (12) comprises a plurality of separation blocks (121) arranged in an axial direction, adjacent separation blocks (121) being tearable apart from each other.
  6. 6. The tearable trocar of claim 1, wherein the separation tape (12) and the main body (11) are adhered by encapsulation, or the separation tape (12) and the main body (11) are clamped.
  7. 7. The tearable trocar of claim 1, wherein the separation band (12) extends to the second end (1B) or wherein the separation band (12) extends to an intermediate position of the trocar (1).
  8. 8. The tearable trocar of claim 1, wherein the separation strip (12) is linear or spiral.
  9. 9. A tearable trocar according to any one of the claims 1 to 8, characterized in that the separation strip (12) and the main body (11) are provided with a gripping structure (13) at the first end (1A).
  10. 10. An implant system comprising the tearable trocar of any one of claims 1-9.

Description

Tearable trocar and implantation system Technical Field The utility model relates to the technical field of medical instruments, in particular to a tearable trocar and an implantation system. Background At present, when the therapeutic effect of the medicament is reduced, the therapeutic effect can be improved by combining deep brain electrical stimulation or spinal cord electrical stimulation aiming at motor diseases such as Parkinson, epilepsy, dystonia, spinal cord nerve pain and the like or mental diseases such as depression, alcohol addiction, obsessive compulsive disorder and the like. Taking deep brain electrical stimulation as an example, it is necessary to use a headstock for holding the skull and the electrode lead and a trocar for manufacturing an implantation channel for the electrode lead when implanting the electrode lead. In the related art, when the electrode lead is implanted in the body, the trocar is made of a stainless steel material, which is suitable for the implantation of only a single electrode lead, however, when the implanted electrode lead is a plurality of bifurcated electrode leads, the trocar is difficult to meet the use requirements. In addition, since one end of the electrode lead is implanted in the body and the other end is held on the head frame, the trocar is withdrawn with a sufficient distance from the skull, however, as the product is miniaturized, the distance left for the withdrawal of the trocar is smaller and smaller, which results in difficult withdrawal of the trocar. Disclosure of utility model The utility model aims to provide a tearable trocar and an implantation system, which can meet the implantation of a single electrode lead and a plurality of bifurcation electrode leads and is convenient for the trocar to withdraw. To achieve the purpose, the utility model adopts the following technical scheme: a tearable trocar for an electrode lead to pass through, the trocar having a first end and a second end, the electrode lead penetrating from the first end, from the second end, the trocar comprising a body circumferentially arranged and a separator, the junction between the two being provided with a tear line, the separator being capable of tearing away from the body to form a gap in the body, and the gap being in communication with the outside at the first end. In some possible embodiments, the tear strength of the material of the separator is less than the tear strength of the material of the body. In some possible embodiments, the trocar includes at least one of the separation strips circumferentially disposed. In some possible embodiments, the trocar is circumferentially provided with at least two of the separator strips, at least two of the separator strips being disposed in succession, the tear strength of the material adjacent the separator strips being different. In some possible embodiments, the separator strip comprises a plurality of separator blocks arranged in an axial direction, adjacent separator blocks being capable of being torn apart from each other. In some possible embodiments, the separator and the body are bonded by encapsulation, or the separator and the body are snapped together. In some possible embodiments, the spacer extends to the second end, or the spacer extends to an intermediate position of the trocar. In some possible embodiments, the separator is linear or spiral. In some possible embodiments, the separator and the body are each provided with a gripping structure at the first end. An implant system comprising the tearable trocar of any one of the above. The utility model has the beneficial effects that: The utility model provides a tearable trocar, wherein the second end of the trocar is implanted into a body with a complete round section, and when an implanted electrode wire is in a single form, the electrode wire passes through the trocar. When the implanted electrode lead is in a multi-bifurcation form, the separation belt is torn from the main body by taking the first end of the trocar as the start, a notch is formed on the main body, and space limitation is avoided, so that the trocar is ensured to have enough space to pass through the electrode lead circumferentially, and the multi-bifurcation part of the electrode lead is convenient to pass through. Thus, the trocar is compatible for use with conventional single electrode leads, as well as complex multi-bifurcated electrode leads, to meet operational requirements. Because be equipped with the tear line between main part and the dividing strip, the dividing strip of being convenient for tears from the main part, and the main part forms the resistance to compression effect, can keep the main part not to warp, and then guarantees that the electrode wire can not warp impaired, does not influence the electrode wire and uses, and reliable height. The implantation system provided by the utility model comprises the tearable trocar, and because one end of the electrode lead is impla