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CN-121971148-A - Nasal endoscope expansion sleeve

CN121971148ACN 121971148 ACN121971148 ACN 121971148ACN-121971148-A

Abstract

The invention discloses a nasal endoscope expansion sleeve, which belongs to the technical field of medical instruments and comprises a sleeve structure, wherein the sleeve structure comprises a sleeve main body, the far end of the sleeve main body is connected with a hemispherical protection end head to form an integrated protection structure, the center of the hemispherical protection end head is provided with a center hole for the surgical instruments to pass through, the pipe wall of the integrated protection structure is sequentially provided with a flushing through hole and a suction through hole in a penetrating way from top to bottom, a plurality of annular air bags are sleeved on the sleeve main body along the length direction of the sleeve main body, a plurality of first air bag inflation pipes which are respectively communicated with the annular air bags are arranged in the pipe wall of the sleeve main body, and an extrusion air bag is arranged on the hemispherical protection end head. The constant rigid support is provided through the arranged sleeve main body, the flushing through hole and the suction through hole are positioned on the inner wall of the sleeve main body, the operation space is not additionally occupied, the collapse of an operation area caused by the reset of normal tissues of the nasal cavity is prevented, and the whole process of the operation channel is kept not to deform.

Inventors

  • LIAO XIANGHUI

Assignees

  • 西安市长安区医院

Dates

Publication Date
20260505
Application Date
20260402

Claims (8)

  1. 1. The nasal endoscope expansion sleeve is characterized by comprising a sleeve structure (1), wherein the sleeve structure (1) comprises a sleeve main body (101), a hemispherical protection end head (102) is connected to the distal end of the sleeve main body (101) to form an integrated protection structure, and a central hole (108) is formed in the center of the hemispherical protection end head (102) so as to facilitate the passage of a surgical instrument (11); The tube wall of the integrated protection structure is sequentially provided with a flushing through hole (106) and a suction through hole (107) in a penetrating manner from top to bottom, and the flushing through hole (106) and the suction through hole (107) respectively extend to the proximal end of the sleeve body (101) and are connected with the flushing component and the suction component through a flushing tube (14) and a suction tube (15); The novel semi-spherical protective sleeve is characterized in that a plurality of annular air bags (104) are sleeved on the sleeve body (101) along the length direction of the sleeve body, a plurality of first air bag air inflation pipes (13) which are respectively communicated with the plurality of annular air bags (104) are arranged in the pipe wall of the sleeve body (101), an extrusion air bag (103) is arranged on the semi-spherical protective end (102), a second air bag air inflation pipe (12) which is communicated with the extrusion air bag (103) is arranged in the pipe wall of the sleeve body (101), and the first air bag air inflation pipes (13) and the second air bag air inflation pipes (12) are all extended to the proximal end of the sleeve body (101).
  2. 2. The dilation cannula of claim 1, wherein the cannula body (101) is of hollow cylindrical configuration with a diameter that increases gradually from left to right, and wherein the cannula body (101) has an arcuate notch (105) at the right end.
  3. 3. The percutaneous endoscopic expansion cannula according to claim 2, wherein the proximal end of the cannula body (101) is fixedly connected with a flexible fixing seat (2), the flexible fixing seat (2) is of a hollow structure, and an adhesive part is arranged at the bottom of the flexible fixing seat (2).
  4. 4. A transnasal endoscopic expansion cannula according to claim 3, characterized in that the end of the flexible holder (2) facing away from the cannula body (101) is connected with an outer tube (3), the first balloon inflation tube (13), the second balloon inflation tube (12), the flushing tube (14) and the suction tube (15) being located in the outer tube (3).
  5. 5. The nasal endoscope expansion sleeve according to claim 4, wherein one end of the outer tube (3) deviating from the flexible fixing seat (2) is connected with a handheld portion (4), a cavity is formed in the handheld portion (4), the first air bag inflation tube (13) and the second air bag inflation tube (12) penetrate through the cavity and are connected with a connecting air tube (10), and one end of the connecting air tube (10) deviating from the handheld portion (4) is connected with a miniature air pump (9).
  6. 6. The nasal endoscope expansion sleeve according to claim 5, wherein a communicating pipe (5) is obliquely arranged at the bottom of the handheld part (4), the upper end of the communicating pipe (5) is communicated with a flushing pipe (14), and a flushing pump is connected to the lower end of the communicating pipe (5).
  7. 7. A transnasal endoscopic dilation cannula according to claim 4 wherein the suction tube (15) extends through the cavity and is connected to a guide tube (6), the end of the guide tube (6) facing away from the handpiece (4) being connected to an operating room negative pressure aspirator (7).
  8. 8. The percutaneous endoscopic expansion sheath according to claim 1, wherein the length of the integrated protective structure is 8-12cm, the thickness of the tube wall is 3mm, the diameters of the flushing through hole (106) and the suction through hole (107) are 2mm, and the integrated protective structure is made of medical PEEK and flexible silica gel composite materials.

Description

Nasal endoscope expansion sleeve Technical Field The invention relates to the technical field of medical instruments, in particular to a nasal endoscope expansion sleeve. Background The endoscopic minimally invasive surgery technology has become the core development direction of nasal surgery and neurosurgery skull base operation, and the transnasal access endoscopic surgery has the advantages of small trauma, rapid postoperative recovery, high patient tolerance and the like, and is widely applied to the clinical treatment of nasal cavity and paranasal sinus lesions, pituitary tumors, skull base tumors and other diseases. The natural cavity of the nasal cavity of the human body has the anatomical characteristics of narrow space, rich mucous membrane blood vessels, soft and easy collapse of tissues and more secretion and blood seepage, a stable and enough spacious operation channel is needed in the operation process, smooth in-and-out of an endoscope and surgical instruments is ensured, a clear operation view is needed continuously, bleeding, liquid seepage and high-temperature vaporization smoke are avoided to shield a lens, normal mucous membrane and tissues of the nasal cavity are also needed to be protected to the greatest extent, and wound and postoperative complications in the operation are reduced, which is a core technical premise implemented by the nasal endoscopic operation. In the current clinic, nasal cavity spreader and working channel devices used by nasal endoscopic surgery mainly comprise traditional metal nasal cavity spreaders and rigid sleeves, and integrated and multifunctional standardized commercial working channel products are not yet produced. The traditional metal spreader is of a hard split structure, the nasal cavity gap is spread by means of mechanical external force, the metal material is hard in texture and sharp in edge, normal mucous membrane and soft tissue of the nasal cavity are easily scratched and extruded in the repeated process of entering and exiting and operating the surgical instrument, mucous membrane damage and bleeding are caused, tissue damage in operation is aggravated, a continuous and airtight longitudinal channel cannot be formed by the metal spreader, normal tissue in the nasal cavity is easily reset and collapsed in the instrument operation gap, the space of an operation area is quickly reduced and deformed, the entering and exiting of the instrument is prevented, error damage of the normal tissue is easily caused, and the safety and fluency of operation are seriously affected. Although the rigid sleeve commonly used in clinic can provide basic axial support, the rigid sleeve only has the function of a channel and does not integrate functions of suction, flushing, hemostasis, tissue protection and the like. In the operation process, an operator needs to additionally hold an independent aspirator to remove blood, seepage and operation smoke, holds a flushing device to clean blood clots and tissue fragments in an operation area, the inner diameter of a sleeve is limited, and a depth (usually 8-10 cm) is reserved to reach the skull base operation area, so that a plurality of devices such as an endoscope, a bipolar electrocoagulation device, an aspirator, a flusher and the like are simultaneously operated in a narrow sleeve, the problems of mutual interference and clamping of the devices are very easy to occur, the operation space is insufficient, the action is limited, the tissue layers cannot be clearly distinguished, the operation difficulty is greatly improved, and the operation time is prolonged. In view of the above, the present invention is specifically proposed to solve the above-mentioned technical problems. Disclosure of Invention The invention aims to provide a nasal endoscope expansion sleeve, which solves the technical problems of insufficient tissue protection, poor channel stability, crowded operation space, easily blurred operation vision and complicated hemostatic procedures of the nasal endoscope expansion sleeve in the prior art. In order to achieve the above purpose, the present invention provides the following technical solutions: The nasal endoscope expansion sleeve comprises a sleeve structure, wherein the sleeve structure comprises a sleeve main body, a hemispherical protection end head is connected to the distal end of the sleeve main body to form an integrated protection structure, and a central hole is formed in the center of the hemispherical protection end head, so that surgical instruments can conveniently pass through; The tube wall of the integrated protective structure is sequentially provided with a flushing through hole and a suction through hole in a penetrating way from top to bottom, and the flushing through hole and the suction through hole respectively extend to the proximal end of the sleeve body and are connected with the flushing component and the suction component through a flushing tube and a suction tube; the sleeve