Medical guide device

A guiding device and mandrel technology, applied in catheters, medical science, balloon catheters, etc., can solve the problems of adjusting the stiffness of the guiding device, which cannot be realized, etc.

Pending Publication Date: 2020-10-02
HANGZHOU AGS MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current guiding devices can only meet the requirements of "soft" or "hard", and cannot adjust the stiffness of the guiding device according to the different conditions of the target site to meet the different rigidity requirements of the guiding device in various surgical situations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as figure 1 As shown, a medical guiding device of this preferred embodiment includes

[0055] guide body 10, comprising a guide mandrel;

[0056] The head 20 is located at the distal end of the guide body 10;

[0057] The stiffness adjustment part is arranged between the guide body 10 and the head part 20, and changes the local stiffness of the guide device by changing its own stiffness. The stiffness adjustment part is a capsule 30 sealed at both ends;

[0058] Wherein, the stiffness of the stiffness adjusting part can be adjusted by guiding the mandrel or through the pressure channel, and the specific structure and implementation will be described in detail in the following examples.

[0059] The guide body 10 refers to the part of the whole guide device except the head 20 and the stiffness adjustment part at the distal end, and a guide mandrel 40 is arranged inside. The stiffness adjustment part is arranged between the guide body 10 and the head 20, and the s...

Embodiment 3

[0076] In the third embodiment, except that the position of the pressure channel is different from that in the second embodiment, other structures, processing techniques, and materials are the same as those in the second embodiment, and will not be described again.

[0077] Based on the above-mentioned Embodiment 2 and Embodiment 3, for different media 31 control methods, the medical guidance device of this embodiment includes the operation structures of Embodiment 4 and Embodiment 5. Below, Embodiment 4 and Embodiment 1 will be described in detail with reference to the accompanying drawings Five operating structures and modes of operation.

Embodiment 4

[0079] as attached image 3 And attached Figure 4 As shown, the pressure channel 41 in this embodiment is not pre-filled with the medium 31, but filled with the medium 31 during use. Therefore, the guide body 10 includes a hose 12 and a guide mandrel 40, and the guide body 10 The proximal end is provided with a connecting end for connecting a pressure source 50, and the pressure source 50 communicates with the pressure channel 41, and the pressure source 50 fills or sucks the medium 31 into the pressure channel 41 to adjust the medium 31 in the capsule 30 state, the flow rate of the medium 31 in this embodiment is controlled by the pressure source 50 . The proximal end (ie, the operating end) of the guide body 10 is sealingly connected with the end cap of the pressure source 50 , so that the pressure source 50 presses or sucks the medium 31 into the pressure channel 41 . The connection structure between the proximal end of the guide body 10 and the pressure source 50 may be...

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Abstract

The invention discloses a medical guide device. The medical guide device comprises a guide body, a head part and a rigidity adjusting part, wherein the guide body comprises a guide mandrel; the head part is located at a distal end of the guide body; and the rigidity adjusting part is arranged between the guide body and the head part; and the local rigidity of the guide device is changed by changing the rigidity of the rigidity adjusting part, and the rigidity adjusting part is a bag body with two sealed ends. The guide device has the advantages that the bag body is arranged behind the head part, and the medium density of the bag body is changed, so that the local rigidity of the head end part of the guide device is changed, and the guide device easily passes through a calculus or narrow position without damaging a bile duct or other related cavities.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a medical guiding device. Background technique [0002] The guiding device is used in various medical operations, including blood vessels, gastrointestinal tract, urology, etc. When inserting catheter-like instruments into the natural tubular lumens of organisms such as the digestive tract, blood vessels, and urethra, in order to make the instruments reach the disease more smoothly site, it is usually necessary to use the guiding device to locate the target part of the biological lumen first, and then guide the catheter-like device to the position; in addition, the guiding device is also used for the observation and treatment of the biological lumen of the endoscope, When in use, by inserting the guiding device into the cavity of the guiding device of the endoscope, the guiding device guides the surgical instruments matched with the endoscope to the target position. ...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61B17/22
CPCA61B17/22A61B2017/22038A61B2017/22051A61M25/0045A61M25/0053A61M25/0068A61M25/10A61M2025/0046
Inventor 时百明暨杰程永华
Owner HANGZHOU AGS MEDTECH CO LTD
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