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CN-122006088-A - Anorectal administration device and administration method thereof

CN122006088ACN 122006088 ACN122006088 ACN 122006088ACN-122006088-A

Abstract

The invention discloses an anorectal administration device and an administration method thereof, wherein the anorectal administration device comprises a catheter main body, a proximal end blocking component, a distal end blocking component, an adjusting component and an administration tube, wherein the catheter main body is used for positioning and guiding in an anorectal space, the proximal end blocking component and the distal end blocking component are arranged along the axial direction of the catheter main body and are used for forming sealing contact with the inner wall of the anorectal space and forming a closed medicine collecting cavity for containing medicine liquid, the adjusting component is arranged on the catheter main body and is respectively connected with the proximal end blocking component and/or the distal end blocking component and is used for adjusting the axial distance of the proximal end blocking component and/or the distal end blocking component on the catheter main body so as to change the volume of the medicine collecting cavity, the administration tube is arranged on the catheter main body and is used for being connected with external medicine injection equipment, and the section of the administration tube, which is positioned in the medicine collecting cavity, is provided with at least one medicine administration hole. The anorectal drug delivery device realizes targeted aggregation and accurate delivery of liquid medicine, and improves adaptability and operation safety of the device.

Inventors

  • WANG TIAN
  • CHEN BIN

Assignees

  • 南通市第一人民医院

Dates

Publication Date
20260512
Application Date
20260310

Claims (10)

  1. 1. An anorectal drug delivery device, characterized by comprising the following steps: a catheter body (1) for positioning and guiding in the anorectal; The proximal end blocking component (2) and the distal end blocking component (3) are arranged at intervals along the axial direction of the catheter main body (1) and used for forming sealing contact with the inner wall of the anorectum and forming a closed medicine collecting cavity for containing medicine liquid; the adjusting component (4) is arranged on the catheter main body (1) and is respectively connected with the proximal end blocking component (2) and/or the distal end blocking component (3) and is used for adjusting the axial distance between the proximal end blocking component (2) and/or the distal end blocking component (3) on the catheter main body (1) so as to change the volume of the medicine collecting cavity; And the administration tube (5) is arranged on the catheter main body (1) and is used for being connected with external administration equipment, and at least one administration hole (51) is formed in the section of the administration tube (5) located in the medicine collecting cavity.
  2. 2. Anorectal administration device as claimed in claim 1, wherein the proximal and distal occlusion elements (2, 3) are respectively inflatable and collapsible elastic rings and/or, The proximal end plugging component (2) and the distal end plugging component (3) are made of medical silica gel or medical emulsion.
  3. 3. Anorectal administration device according to claim 1 or 2, further comprising an inflation assembly (6), said inflation assembly (6) being in communication with said proximal and distal occlusion assemblies (2, 3), respectively, for pressure expansion of said proximal and distal occlusion assemblies (2, 3).
  4. 4. An anorectal administration device as claimed in claim 3, wherein the inflation assembly (6) comprises a manual pressurizing balloon (61), a connecting line (62) and a pressure feedback unit (63), one end of the connecting line (62) being in communication with the proximal and distal occlusion assemblies (2, 3), the other end of the connecting line (62) being in communication with the manual pressurizing balloon (61), the pressure feedback unit (63) being provided on the connecting line (62) for feeding back the inflation pressure of the proximal occlusion assembly (2) and/or the distal occlusion assembly (3).
  5. 5. Anorectal administration device as claimed in claim 4, wherein the pressure feedback unit (63) is a visual elastic indication balloon for indirectly indicating the inflation pressure of the proximal and distal occlusion assemblies (2, 3) and/or, The inflation assembly (6) further comprises two control valves for controlling the proximal and distal plugging assemblies (2, 3), respectively.
  6. 6. Anorectal administration device as claimed in claim 1, wherein the adjustment assembly (4) comprises an adjustment sleeve, which is sleeved outside the catheter body (1), the outer wall of the catheter body (1) is provided with a threaded part, the adjustment sleeve is in running fit with the threaded part, the adjustment sleeve is connected with the proximal end blocking assembly (2) or the distal end blocking assembly (3), the rotation adjustment sleeve is used for driving the corresponding proximal end blocking assembly (2) or distal end blocking assembly (3) to axially move along the catheter body (1) so as to change the distance between the proximal end blocking assembly (2) and the distal end blocking assembly (3), and/or, The axial distance between the proximal end blocking component (2) and the distal end blocking component (3) is 2-6cm, and/or, The volume of the medicine collecting cavity is set to be 5-15ml.
  7. 7. Anorectal administration device according to claim 1, wherein the outer wall of the catheter body (1) is provided with length scales in the axial direction, and wherein the proximal and/or distal occlusion assemblies (2, 3) are provided with positioning marks corresponding to the length scales.
  8. 8. Anorectal administration device according to claim 1, characterized in that an angle is provided between the axis of the administration hole (51) and the axis of the catheter body (1) for directional injection.
  9. 9. Anorectal administration device according to claim 8, wherein the catheter body (1) is rotatably provided with an orientation head, wherein the administration hole (51) is provided on the orientation head, and wherein the orientation head is provided with an angle indication mark.
  10. 10. A method of administering an anorectal administration device, using an anorectal administration device as claimed in any of claims 1 to 9, comprising the steps of: s1, inserting the catheter main body (1) into anorectal to a set depth according to the axial position of a focus; s2, operating the adjusting assembly (4) according to the axial size of the focus, and adjusting the axial distance to be matched with the size of the focus; S3, the proximal end plugging component (2) and the distal end plugging component (3) are expanded to form sealing contact with the inner wall of the anorectal so as to form the closed medicine collecting cavity in a focus area; s4, injecting liquid medicine into the medicine feeding tube (5), and carrying out targeted infiltration treatment on the focus area by the liquid medicine through the medicine feeding holes (51).

Description

Anorectal administration device and administration method thereof Technical Field The invention relates to the technical field of drug delivery devices in medical equipment, in particular to an anorectal drug delivery device and a drug delivery method thereof. Background Anorectal diseases are common clinical symptoms, and the targeting treatment is usually realized by adopting a local administration mode in the anorectal treatment of traditional Chinese medicine. The traditional administration mode mainly comprises suppository administration, paste administration, lotion hip bath, anorectal injection and the like, wherein the anorectal injection can be directly injected into anorectal to be absorbed by mucous membrane, so that the treatment pertinence is strong and the application is wide. However, in the process of injecting medicine, the existing anorectal medicine feeding device needs to rely on the patient to actively shrink the anus in order to avoid the outflow of medicine liquid. In the related technology, although the inflation ring is adopted to expand in the anorectal to obstruct the outflow of the liquid medicine, the liquid medicine still can flow freely along the axial direction after entering the anorectal due to the certain length of the anorectal and the fluidity of the liquid medicine, and can not be gathered at a focus, so that a large amount of liquid medicine is far away from a focus area and can not be effectively absorbed, the concentration of the liquid medicine in the focus area is reduced, and the absorption efficiency and the treatment effect of the medicine are directly influenced. Disclosure of Invention The invention aims to provide an anorectal drug delivery device and a drug delivery method thereof, which realize targeted aggregation and accurate delivery of liquid medicine and improve the suitability and operation safety of the device. The invention adopts the following technical scheme: An anorectal drug delivery device comprising: a catheter body for positioning and guiding within the anorectal; The proximal end blocking assembly and the distal end blocking assembly are arranged at intervals along the axial direction of the catheter main body and are used for forming sealing contact with the inner wall of the anorectal and forming a closed medicine collecting cavity for containing medicine liquid; The adjusting component is arranged on the catheter main body, is connected with the proximal end plugging component and/or the distal end plugging component respectively, and is used for adjusting the axial distance between the proximal end plugging component and/or the distal end plugging component on the catheter main body so as to change the volume of the medicine collecting cavity; and the administration tube is arranged on the catheter main body and used for being connected with external medicine injection equipment, and at least one administration hole is arranged at the section of the administration tube, which is positioned in the medicine collecting cavity. In one embodiment, the proximal and distal occlusion components of the anorectal delivery device are each an inflatable and contractible elastic ring, and/or, The proximal end plugging component and the distal end plugging component are made of medical silica gel or medical emulsion. In one embodiment, the anorectal administration device further comprises an inflation assembly, wherein the inflation assembly is respectively communicated with the proximal blocking assembly and the distal blocking assembly and is used for performing pressurization expansion on the proximal blocking assembly and the distal blocking assembly. In one embodiment, the inflation component of the anorectal administration device comprises a manual pressurization balloon, a connecting pipeline and a pressure feedback unit, one end of the connecting pipeline is communicated with the proximal plugging component and the distal plugging component, the other end of the connecting pipeline is communicated with the manual pressurization balloon, and the pressure feedback unit is arranged on the connecting pipeline and used for feeding back the inflation pressure of the proximal plugging component and/or the distal plugging component. In one embodiment, the pressure feedback unit of the anorectal administration device is a visual elastic indication bag which is used for indirectly indicating the inflation pressure of the proximal blocking component and the distal blocking component, and/or, The inflation assembly further comprises two control valves for controlling the proximal and distal occlusion assemblies, respectively. In one embodiment, the adjusting assembly of the anorectal drug delivery device comprises an adjusting sleeve, the adjusting sleeve is sleeved outside the catheter main body, a threaded part is arranged on the outer wall of the catheter main body, the adjusting sleeve is in running fit with the threaded part, the adjusting sleeve is