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WO-2026095191-A1 - MEDICAL SNARE TUBE

WO2026095191A1WO 2026095191 A1WO2026095191 A1WO 2026095191A1WO-2026095191-A1

Abstract

The present invention relates to a medical snare tube for removing polyps on organs of the body, the improved snare tube structure facilitating forward and backward movement of a medicinal solution hose provided with an injection needle and a wire provided with a snare when the injection needle or snare for polyp removal is being selectively inserted or pulled out. The snare tube is structured with the medicinal solution hose guide channel and wire guide channel divided as two channels, divided along the internal longitudinal direction of the tube, and a plurality of rows of arc-shaped protruding bands are provided along the longitudinal direction of the inner circumferential surface of both medicinal solution hose guide channel and wire guide channel.

Inventors

  • JANG, YOUNG HYUN

Assignees

  • 지이씨메디컬 주식회사

Dates

Publication Date
20260507
Application Date
20241226
Priority Date
20241101

Claims (11)

  1. A medical snare tube comprising a drug hose (20) equipped with a needle (21) for supplying drug solution to a polyp that has formed in the body, a wire (30) formed with a snare (31) for extracting the polyp, and a tube (10) that guides forward/backward movement while accommodating the drug hose and the wire, The above tube (10) is, A chemical hose guide (11) that guides forward/backward movement while accommodating the chemical hose and a wire guide (12) that guides forward/backward movement while accommodating the wire are formed separately along the internal longitudinal direction of the tube. A medical snare tube characterized by having multiple rows of protruding bands (13) formed along the longitudinal direction of the inner surface of the separated liquid hose guide and wire guide so that friction between the liquid hose and the liquid hose guide and between the wire and the wire guide is minimized when the liquid hose and the wire move back and forth.
  2. In paragraph 1, The above tube (10) and the medicine hose (20) are medical snare tubes characterized by being extruded from nylon.
  3. In paragraph 1, A medical snare tube characterized in that the material of the above wire (30) is a metal that conducts electricity and has elasticity.
  4. In paragraph 1 or 3, A medical snare tube characterized in that the material of the wire (30) is stainless steel.
  5. In paragraph 1 or 3, The above wire (30) is a medical snare tube characterized by being formed by twisting seven strands of separated solid wire together to form a primary wire, and twisting the seven strands of the primary wire together.
  6. In paragraph 1 or 3, The above wire (30) is a medical snare tube characterized by being formed to have an outer diameter of 0.5-1 mm.
  7. In paragraph 1 or 6, A medical snare tube characterized by the inner diameter of the above-mentioned liquid hose guide and wire guide being 1.1-1.3 mm.
  8. In paragraph 1, The above-mentioned liquid hose guide (11) and wire guide (12) are arranged to be positioned on both sides centered on the center of the tube, and the spacing (D) between the liquid hose guide and wire guide arranged on both sides, the spacing (D') between one side of the tube and the outer edge of the liquid hose guide, and the spacing (D") between the other side of the tube and the outer edge of the wire guide are formed to maintain the same spacing.
  9. In paragraph 8, A medical snare tube characterized by the above-mentioned spacing being 0.1-0.3mm.
  10. In paragraph 1, A medical snare tube characterized by the outer diameter of the above-mentioned liquid hose being 0.7-1 mm.
  11. In paragraph 1, The above-mentioned medicine hose guide and wire guide are characterized by being formed in a circular shape having multiple rows of arc-shaped protrusions (13), in a medical snare tube.

Description

Medical snare tube The present invention relates to a medical snare tube for removing polyps from internal organs, wherein the tube structure of the medical snare is improved to allow for smooth forward and backward movement of the drug hose on which the needle is installed and the wire on which the snare is formed when selectively withdrawing or retracting the needle or snare for removing the polyps. Generally, medical snares are used to extract and remove polyps that have formed in human organs; when a polyp is discovered within the body, it is extracted and removed using a snare formed on the snare's wire through the snare's control unit. The method of extracting and removing polyps using the medical snare described above involves supplying a medication to the discovered polyp through a needle, and when the polyp swells due to the supply of the medication, placing a snare around the swollen polyp and supplying a high-frequency current to extract and remove the polyp. A conventional medical snare that removes polyps in the manner described above is the snare disclosed in Korean Patent Publication No. 10-2023-0044087, and its composition is as follows. - under - Each operating member for operating the snare operating means (400) and the needle operating means (500) is separately formed on the same line on both rear sides of the main body (100) having a fixing member formed at the rear end, so as to operate the snare operating means and the needle operating means separately. A guide hole is formed along the longitudinal direction of the above main body to guide the snare operating means and the needle operating means, and a rotating body coupling part is formed at the front. A polyp removal line with a snare installed at the tip and a drug supply line with a needle installed at the tip pass through the above-mentioned rotating body coupling part, and a rotating body (200) that rotates freely from the rotating body coupling part is installed. The above-mentioned rotating body is equipped with an internal entry part (300) that enters the body while accommodating the polyp removal line and the liquid supply line, and exposes the snare or needle to the outside or enters the inside according to the operation of the snare operating means and the needle operating means. The above snare operating means is integrally formed with a snare moving body that moves back and forth along the main body while the rear end of the polyp removal line is installed, a current supply port that supplies current to the snare, and a snare operating port that moves the snare moving body. The above needle operating means (500) comprises a needle moving body having a liquid supply port formed therein to which the rear end of a liquid supply line is connected and installed, an extension part connected and installed to the needle moving body, and a needle operating part formed therein to move the needle moving body. In the above configuration, since the polyp removal line and the drug supply line are located within the body entry part (300) that enters the body and accommodates the polyp removal line and the drug supply line, a problem has arisen in which the removal of the snare and the needle is not smooth due to mutual friction during the process of withdrawing the snare and the needle, thereby causing a hindrance to the polyp removal procedure. In addition, related prior art includes KR10-2593196, KR10-2476766, and KR10-2301831. FIG. 1 is a perspective view of a medical snare tube according to the present invention applied to a snare. FIG. 2 is a perspective view of a medical snare tube according to the present invention with a needle withdrawn. FIG. 3 is a perspective view of a medical snare tube according to the present invention with the noose withdrawn. FIG. 4 is an enlarged cross-sectional view of a medical snare tube according to the present invention, FIG. 5 is an enlarged cross-sectional view of a medical snare tube according to the present invention with a wire and a drug hose positioned therein. The present invention relates to a medical snare tube for removing polyps from internal organs, wherein the tube structure of the medical snare is improved to allow for smooth forward and backward movement of the drug hose on which the needle is installed and the wire on which the snare is formed when selectively withdrawing or retracting the needle or snare for removing the polyps. An embodiment thereof is described below with reference to the attached drawings. - under - The medical snare tube configuration of the present invention is as shown in FIGS. 1 to 5 A medical snare tube comprising a drug hose (20) equipped with a needle (21) for supplying drug solution to a polyp that has formed in the body, a wire (30) formed with a snare (31) for extracting the polyp, and a tube (10) that guides forward/backward movement while accommodating the drug hose and the wire, The above tube (10) is, A chemical hose guide (11) that guides forward