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Connecting rod type percutaneous puncture positioning and fixing device

A fixing device and connecting rod technology, applied in the field of medical devices, can solve problems such as deviation of the needle insertion angle of the patient, unfixed puncture device, and difficulty in large-scale adjustment, so as to overcome repeated puncture damage, reduce the number of adjustments, and avoid The effect of positional offset

Pending Publication Date: 2020-08-18
SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such an operation method will bring the following problems: 1. After the puncture device enters the body, it is difficult to adjust the position in a large scale. The movement of the patient leads to a deviation in the needle insertion angle; 3. Repeated adjustments are likely to increase the number of radiation exposures of the patient and the doctor
However, the device can only improve the accuracy when puncturing into the human body, reducing the probability of needing subsequent adjustments
However, in the first step of percutaneous biopsy and other operations, it is still necessary to fix the puncture device by inserting it into the human body, and then adjust the position according to the fluoroscopy results, which cannot avoid the risk of repeat puncture

Method used

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  • Connecting rod type percutaneous puncture positioning and fixing device
  • Connecting rod type percutaneous puncture positioning and fixing device
  • Connecting rod type percutaneous puncture positioning and fixing device

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 and figure 2 As shown, this embodiment provides a link-type percutaneous puncture positioning and fixing device, which includes a bracket plate 1 , an angle adjustment module 2 , a puncture needle 3 and a plurality of position adjustment rods 4 . The support plate 1 is a flat rectangular plate, and the angle adjustment module 2 is installed in the center of the support plate 1 and penetrates the support plate 1 up and down. The puncture needle 3 is installed on the angle adjustment module 2 . The tops of a plurality of position adjustment rods 4 are installed below the support plate 1, and the bottom ends of the position adjustment rods 4 are pasted on the human skin. With such a structure, the adjustment rods 4 play the role of supporting the support plate 1. There are generally at least three position adjustment rods 4 . In this embodiment, four position adjustment rods 4 are used to distribute at the four corners of the support plate 1 .

[0029...

Embodiment 2

[0038] Such as Figure 6 and Figure 7 As shown, the overall structure and working principle of this embodiment are similar to the first embodiment, the difference is that in this embodiment, the specific structures of the position adjustment rod 4 and the movable joint 5 are as follows:

[0039] The position adjustment rod 4 is a complete pole, wherein the top of the pole 41 is connected to the bottom of the support plate 1 through the movable joint 5 with locking function, and the bottom of the pole 41 is connected to the common movable joint 5 .

[0040] A common ball joint includes a ball 51 and a mounting block 52 . The sphere 51 is arranged in the mounting block 52; the sphere 51 is connected to the strut 41, and the mounting block 52 is used for pasting the skin of the human body. The spherical joint with locking function is the same as the first embodiment, including a ball 51 , a locking ring 53 and a mounting block 52 . The mounting block 52 is a cylinder with one...

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Abstract

The invention relates to a connecting rod type percutaneous puncture positioning and fixing device which comprises a support plate, an angle adjusting module, a puncture needle and a plurality of position adjusting rods, wherein at least two movable joints are arranged on each position adjusting rod, each movable joint can rotate horizontally and vertically. Meanwhile, at least one movable joint on each position adjusting rod has a locking function, and the bottom end of each position adjusting rod is adhered to the skin of a human body. The angle adjusting module comprises a spherical part, asupporting part and a locking part, and the puncture needle is installed on the spherical part. Compared with the prior art, when the puncture needle is used, only the needle tip of the puncture needle needs to be placed on a planned skin part, the puncture needle does not need to be inserted into the skin, external skin adjustment of the puncture needle is achieved, and damage caused by repeatedpuncture in an existing method is overcome; meanwhile, the puncture accuracy can be remarkably improved, and the adjustment frequency is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a link-type percutaneous puncture positioning and fixing device. Background technique [0002] For space-occupying lesions in subcutaneous, deep skin, viscera, and bone, percutaneous biopsy and percutaneous minimally invasive treatment are often required. These operations often require the puncture needle to be inserted into the skin under C-arm machine, O-arm machine or CT fluoroscopy, and then the needle insertion direction is adjusted. The specific operation method is as follows: first determine the approximate position of the needle entry point on the skin, and then insert different puncture devices into the body so that the puncture device can be fixed with the human body; then perform fluoroscopy to confirm whether the puncture angle is correct; Adjustment of puncture angle. However, such an operation method will bring the following problems: 1. After the puncture...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3403A61B2017/3407
Inventor 马捷赵雪孙鑫郝永强
Owner SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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