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CN-120381606-B - Local drug delivery device for bronchoscope

CN120381606BCN 120381606 BCN120381606 BCN 120381606BCN-120381606-B

Abstract

The invention relates to a local drug delivery device for a bronchoscope, which comprises a main pipe, an injector butt joint and a conical end head, wherein a baffle is arranged in the middle of the inside of the main pipe, the baffle separates an inner cavity of the main pipe into two channels, the injector butt joint is arranged at the upper end of the main pipe, two injection ports corresponding to the two channels one by one are arranged on the injector butt joint, the conical end head is arranged at the lower end of the main pipe, a silica gel injection head is arranged at the lower end of the conical end head, a plurality of closable injection holes are arranged at the lower end of the silica gel injection head, a wire drawing structure capable of moving up and down is arranged at the middle part of the baffle, and a pushing block structure connected with the lower end of the wire drawing structure is arranged in the lower end of the silica gel injection head. The invention has the characteristics of precisely controlling the injection quantity of the medicine, having simple structure, convenient manufacture, improving the treatment effect and the like.

Inventors

  • ZHANG LEI
  • WU YALING
  • GUO LIFEN
  • PENG WEIDONG
  • YU WANJUN

Assignees

  • 宁波大学附属人民医院

Dates

Publication Date
20260505
Application Date
20250603

Claims (8)

  1. 1. The local drug delivery device for the bronchoscope is characterized by comprising a main pipe (1), an injector butt joint (2) and a conical end head (3), wherein a baffle (8) is arranged at the middle part of the inside of the main pipe (1), the baffle (8) separates an inner cavity of the main pipe (1) into two channels (12), the injector butt joint (2) is arranged at the upper end of the main pipe (1), injection ports (11) which are in one-to-one correspondence with the two channels (12) are arranged on the injector butt joint (2), the conical end head (3) is arranged at the lower end of the main pipe (1), a silica gel injection head (4) is arranged at the lower end of the conical end head (3), a plurality of closable injection holes (18) are arranged at the lower end of the silica gel injection head (4), a wire drawing structure (9) which moves up and down is arranged at the middle part of the baffle (8), and a pushing structure (19) connected with the lower end of the wire drawing structure (9) is arranged in the lower end of the silica gel injection head (4). When wiredrawing structure (9) moved up, wiredrawing structure (9) pulling push block structure (19), push block structure (19) promote and glue first body (16), glue first body (16) and receive the extrusion and take place deformation, but closed jet hole (18) are closed by the extrusion, the upper end front side of being responsible for (1) be provided with transparent observation window (6), observation window (6) on be provided with liquid medicine indicator strip (7), two passageway (12) of being responsible for (1), one is as the feed liquor passageway, another is as exhaust passage.
  2. 2. A topical administration device for bronchoscopes as claimed in claim 1, wherein a handle structure is provided at the upper end of said wire-drawing structure (9), a wire-drawing chute (5) having an upper end bent toward one side is provided at the front side of the upper end of said baffle (8), and a bent portion of said wire-drawing chute (5) is used for facilitating the definition of the handle structure of the wire-drawing structure (9).
  3. 3. A topical administration device for bronchoscopes as claimed in claim 1, wherein said syringe abutment (2) is provided with a double-hole syringe stopper (10) at its upper end.
  4. 4. A local drug delivery device for a bronchoscope according to claim 1, wherein the conical tip (3) comprises a hard conical head (13), the hard conical head (13) is in a conical shape with a big top and a small bottom, the hard conical head (13) is in butt joint with the lower end of the main tube (1), and a reflux cavity (14) communicated with two channels (12) is arranged inside the hard conical head (13).
  5. 5. A topical administration device for bronchoscopes as claimed in claim 4, wherein a layer of silica gel (15) is provided on the outer conical surface of said rigid conical head (13).
  6. 6. A topical administration device for a bronchoscope as claimed in claim 1, wherein said silicone injection head (4) comprises a head body (16), an injection cavity (17) communicating with a reflux cavity (14) is provided at an upper end of said head body (16), and said closable injection hole (18) communicates with said injection cavity (17).
  7. 7. A topical administration device for bronchoscopes as claimed in claim 1, wherein said pusher structure (19) has a plurality of upwardly extending vertical fibers (20) disposed uniformly at the edge of the upper surface thereof.
  8. 8. A topical administration device for bronchoscopes as claimed in claim 1, wherein said tapered end (3) has at least one pair of sealing ribs on its outer circumference.

Description

Local drug delivery device for bronchoscope Technical Field The invention relates to the technical field of bronchoscope drug delivery, in particular to a local drug delivery device for a bronchoscope. Background The bronchoscope is an important endoscopic tool, is suitable for observation, biopsy sampling, bacteriology and cytology examination of lung lobe segment and Duan Zhi tracheal lesion, when the lung of a patient is in a serious condition, a doctor can directly guide medicine to the infection position of the patient through the medicine feeding device, so that the treatment effect can be greatly improved, the medicine feeding device usually enters the lung of the patient through a bronchoscope side channel, and meanwhile, the medicine feeding device can be conveniently and directly injected into the affected part of the lung through the bronchoscope. Disclosure of Invention The invention aims to solve the technical problem of providing a local drug delivery device for a bronchoscope, which has the characteristics of precisely controlling the injection quantity of a drug, along with simple structure, convenient manufacture, improving the treatment effect and the like. The invention provides a local drug delivery device for a bronchoscope, which comprises a main pipe, an injector butt joint and a conical end head, wherein a baffle is arranged in the middle of the inside of the main pipe, the baffle separates an inner cavity of the main pipe into two channels, the upper end of the main pipe is provided with the injector butt joint, the injector butt joint is provided with two injection ports corresponding to the two channels one by one, the lower end of the main pipe is provided with the conical end head, the lower end of the conical end head is provided with a silica gel injection head, the lower end of the silica gel injection head is provided with a plurality of closeable injection holes, the middle part of the baffle is provided with a wiredrawing structure which moves up and down, and the lower end of the silica gel injection head is internally provided with a pushing block structure connected with the lower end of the wiredrawing structure; when the wire drawing structure moves upwards, the wire drawing structure pulls the push block structure, the push block structure pushes the rubber head body, the rubber head body is extruded to deform, and the closeable injection hole is extruded to be closed. According to the technical scheme, the main pipe is arranged to be used as a body for inserting the bronchoscope, two channels are arranged to facilitate liquid medicine injection, one channel is used as an injection channel, the other channel is used as an exhaust channel, the opposite joint of the injector is arranged to facilitate the arrangement of the injection ports which are in butt joint with the two channels, the conical end is arranged to be used as a structure for liquid medicine backflow, the liquid medicine is convenient to fill in the two channels, the silica gel injection head and the closable injection hole are arranged to be used for conveniently sealing the silica gel injection head, liquid medicine backflow filling is achieved, and the wire drawing structure and the push block structure are arranged to be used for extruding the rubber head body to achieve closing of the closable injection hole. When the liquid medicine is filled, firstly, one injector is in butt joint with one injection port, then the wire drawing structure is pulled, the wire drawing structure moves upwards, the push block structure is pulled to extrude the rubber head body, the rubber head body deforms to enable the closable injection hole to be closed, then the injector is pushed, the liquid medicine is injected into one channel, air in the main pipe is discharged from the other channel until the liquid surfaces of the two channels are in a flush state, and through the indication on the main pipe, five milliliters of liquid medicine is ensured in the main pipe, at the moment, the liquid medicine below the main pipe is in a full state, and the air cannot be injected when the liquid medicine is injected. When carrying out the liquid medicine and filling, be responsible for under the bronchoscope and need to align to disease position, and toper end and silica gel injection head can insert disease position department, later open the wiredrawing structure, the rubber head body is recovered under elastic action for can close the jet orifice and open, later with five milliliters air of double-end syringe suction, then dock the syringe butt joint with two injection ports of syringe butt joint, later promote the double-end syringe, the air in the double-end syringe enters into in the person in charge, but the liquid medicine in the person in charge is spouted from closed jet orifice. Doctor observes the disease degree of lung through bronchoscope, and according to disease degree, confirm the injection volume of medicine, i