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CN-224206873-U - Puncture needle structure of guide

CN224206873UCN 224206873 UCN224206873 UCN 224206873UCN-224206873-U

Abstract

The utility model relates to a puncture needle structure of a guide device, which is applied to the technical field of medical appliances and comprises a pagoda head, a puncture needle and a needle cap, wherein the needle cap is arranged at the tail part of the puncture needle. When the puncture needle is used, the puncture needle is penetrated into the movable hole, the clamping strips are aligned with the through grooves, then the connecting end is inserted into the movable groove until the end face of the connecting end reaches the bottom of the movable groove, at the moment, the clamping strips reach the clamping grooves, the connecting end is rotated to enable the clamping strips to enter the clamping grooves, at the moment, the needle cap is clamped on the pagoda head, the puncture needle is fixed, the puncture needle cannot move relative to the guide device during operation, and the convenience of use of doctors is improved.

Inventors

  • CAO MING
  • HUANG HAILIANG
  • QIU YUNLONG
  • YANG PENG

Assignees

  • 苏州领微医疗科技有限公司

Dates

Publication Date
20260508
Application Date
20250519

Claims (10)

  1. 1. The guide puncture needle structure is characterized by comprising a pagoda head (100), a puncture needle (200) and a needle cap (300), wherein the needle cap (300) is arranged at the tail part of the puncture needle (200); A movable groove (310) extending along the axial direction of the puncture needle (200) is formed in one end, close to the puncture needle (200), of the needle cap (300), the movable groove (310) is cylindrical, a clamping groove (320) is formed in the bottom of the movable groove (310) in a circumferential direction, a through groove (330) is formed in the annular side of the movable groove (310), and the through groove (330) extends from the end face, close to the puncture needle (200), of the needle cap (300) to the clamping groove (320); The one end of pagoda head (100) is the installation end, and the other end is the link, the installation end sets up on the director, set up on the pagoda head (100) and run through and be provided with movable hole (110), movable hole (110) are extended to the installation end from the link, the ring side of link is provided with card strip (120), the distance of card strip (120) ring outside to pagoda head (100) axis is greater than the distance of movable groove (310) ring side to movable groove (310) axis, the distance of card strip (120) ring outside to pagoda head (100) axis is less than the distance through groove (330) distal side to movable groove (310) axis.
  2. 2. The introducer needle structure of claim 1, wherein the clip strip (120) is arcuate.
  3. 3. The introducer needle structure of claim 1, wherein two of the clip strips (120) are disposed on the connecting end ring side, two of the passing grooves (330) are disposed on the connecting end ring side, and two of the passing grooves (330) are disposed on the annular direction of the movable groove (310).
  4. 4. A guide penetrating needle structure according to claim 3, wherein two of said clamping grooves (320) are provided, and two of said clamping grooves (320) extend from the passage groove (330) to the ring direction of the movable groove (310), respectively.
  5. 5. The introducer needle structure of claim 4, wherein the notch (320) is defined through one of the access slots (330).
  6. 6. The introducer needle structure of claim 5, wherein the notch (320) extends through the outside of the cap (300).
  7. 7. The introducer needle structure of claim 1, wherein the movable slot (310) is coaxially disposed on the needle cap (300).
  8. 8. The introducer needle structure of claim 7, wherein the bottom of the movable groove (310) is coaxially provided with a positioning hole (340), and one end of the needle (200) is disposed at the positioning hole (340).
  9. 9. The introducer needle structure of claim 8, wherein the connecting end is cylindrical.
  10. 10. An introducer needle structure as set forth in claim 9, wherein the outer diameter of the connector end is adapted to the diameter of the movable slot (310).

Description

Puncture needle structure of guide Technical Field The utility model relates to the technical field of medical instruments, in particular to a puncture needle structure of a guide. Background Neurosurgery (Neurosurgery) is a branch in surgery, and based on surgery as a main treatment means, a unique Neurosurgery research method is applied to research human nervous systems, such as brain, spinal cord and peripheral nervous systems, and related auxiliary mechanisms, such as damage, inflammation, tumors, deformity and certain genetic metabolic disorders or functional disorder diseases of structures of skull, scalp, cerebral vascular meninges and the like, such as etiology and pathogenesis of diseases of epilepsy, parkinsonism, neuralgia and the like, and explores a high-grade, fine and sharp subject of new diagnosis, treatment and prevention technologies. The puncture needle is a medical device commonly used in neurosurgery and can be used to puncture an organ or tissue. The combined use of pjncture needle and other medical equipment can reach the pain point, eliminates patient's pain, is an essential medical instrument in the hospital, among the prior art, and after the pjncture needle combined guide carried out neurosurgery, the pjncture needle penetrated the passageway in the guide, required doctor handheld pjncture needle and guide simultaneously to ensure the stability between pjncture needle and the guide, increased the degree of difficulty that the doctor used, very inconvenience. In view of the foregoing, there is a need for an introducer needle structure that addresses the above-described issues. Disclosure of utility model In order to help solve the problems in the prior art, the utility model provides a puncture needle structure of a guide, which adopts the following technical scheme that the puncture needle structure comprises a pagoda head, a puncture needle and a needle cap, wherein the needle cap is arranged at the tail part of the puncture needle; the needle cap is provided with a movable groove which extends along the axial direction of the puncture needle at one end close to the puncture needle, the movable groove is cylindrical, the bottom of the movable groove is provided with a clamping groove in a circumferential direction, the annular side of the movable groove is provided with a through groove, and the through groove extends from the end face of the needle cap close to the puncture needle to the clamping groove; The one end of pagoda head is the installation end, and the other end is the link, the installation end sets up on the director, set up on the pagoda head and run through and be provided with the movable hole, the movable hole extends to the installation end from the link, the ring side of link is provided with the card strip, the card strip ring is outside to the distance of pagoda head axis to be greater than the distance of movable groove ring side to the movable groove axis, the card strip ring is outside to the distance of pagoda head axis be less than the distance through the most distal side of groove to the movable groove axis. The clamping strip is arc-shaped. The two clamping strips are oppositely arranged at the side of the connecting end ring, the two through grooves are formed, and the two through grooves are oppositely arranged at the annular direction of the movable groove. The two clamping grooves are respectively extended from the through groove to the annular direction of the movable groove. The clamping groove is communicated with one of the through grooves. The clamping groove penetrates to the outer side of the needle cap. The movable groove is coaxially arranged on the needle cap. The bottom of the movable groove is coaxially provided with a positioning hole, and one end of the puncture needle is arranged at the positioning hole. The connecting end is cylindrical. The outer diameter of the connecting end is matched with the diameter of the movable groove. The structure of the utility model can achieve the following beneficial effects: When the puncture needle is used, the puncture needle penetrates into the movable hole, the clamping strips are aligned to the through grooves, then the connecting ends are inserted into the movable grooves until the end faces of the connecting ends reach the bottoms of the movable grooves, at the moment, the clamping strips reach the clamping grooves, the connecting ends are rotated to enable the clamping strips to enter the clamping grooves, at the moment, the needle caps are clamped on the pagoda heads, the puncture needle is fixed, the puncture needle cannot move relative to the guide during operation, and the use convenience of doctors is improved. Drawings FIG. 1 is a schematic structural view of an embodiment; FIG. 2 is a schematic diagram of the structure of the pagoda head in the embodiment; FIG. 3 is a schematic diagram of another view of an embodiment; fig. 4 is a schematic cross-sectional view of the structure of t