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Puncture positioning device for nerve intervention

A positioning device and nerve intervention technology, applied in the direction of puncture needles, trocars, etc., can solve the problems of adjusting the strength of clamping puncture needles, low flexibility, and the positioning device cannot meet the adjustment of needle entry angle, so as to reduce the possibility of slippage , the effect of improving safety

Inactive Publication Date: 2022-01-21
THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF TCM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is a fixed distance between two adjacent threaded holes of the device, and the height of the positioning box can only be adjusted to several fixed values, which is inconvenient to adjust the strength of clamping the puncture needle according to actual needs; and the positioning device cannot satisfy the operator. The problem of adjusting the needle insertion angle is low flexibility; and in the puncture process, when the puncture needle penetrates the human body, the patient's body often produces self-protection actions, such as muscle tightening, moving and avoiding, etc. If no corresponding measures are taken for the puncture needle Corresponding protective measures, the puncture needle may cause unnecessary harm to patients who overreact; therefore, based on the above-mentioned problems, further improvement of the puncture positioning device is required

Method used

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  • Puncture positioning device for nerve intervention
  • Puncture positioning device for nerve intervention
  • Puncture positioning device for nerve intervention

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 1-5As shown, a puncture positioning device for nerve intervention includes a positioning tube 1, two positioning plates 2 are arranged in the positioning tube 1, and two first threaded columns 3 are fixedly connected to the positioning tube 1. The first threaded column 3. One end away from the positioning tube 1 is fixedly connected to the movable block 4, the first threaded column 3 is sleeved with a first movable ring 5, the positioning plate 2 is fixedly connected with two connecting columns 6, and one end of the connecting columns 6 penetrates the positioning tube The movable hole 12 on 1 is fixedly connected with the first movable ring 5; the diameter of the movable hole 12 is larger than the diameter of the connecting column 6, so that the first movable ring 5 can drive the connecting column 6 to move in the movable hole 2, thereby realizing the first The movable ring 5 drives the positioning plate 2 to move through the connecting column 6 .

[0030]...

Embodiment 2

[0036] When performing a puncture operation on a patient, due to the limitation of the patient's puncture site and body position, it is often necessary to adjust the angle at which the puncture needle penetrates the patient's body. Patients with different diseases require different needle insertion angles. To meet the requirements of the angle, the relevant components of the device have been further improved.

[0037] Specifically, as Figure 6-8 As shown, a pair of first electromagnets 24 are provided on the first movable ring 5 and the second movable ring 11 corresponding to both ends of the upper compression spring 22 , and the first movable ring 5 and the second movable ring 11 corresponding to both ends of the lower compression spring 23 are provided with a pair of first electromagnets 24 . A pair of second electromagnets 25 are arranged on the movable ring 11 .

[0038] After the puncture needle is clamped by the two clamping plates 2, when the needle insertion angle of...

Embodiment 3

[0040] In order to further control the two positioning plates 2 to adjust the needle insertion angle of the puncture needle and provide guidance for the operator, a second pressure sensor is provided at one end of the upper compression spring 22 and the lower compression spring 23 near the first movable ring 5; through the controller After controlling the first electromagnet 24 and the second electromagnet 25 on both sides of the positioning tube 1 to tilt the two positioning plates 2 and drive the puncture needle to adjust the angle, when the upper compression spring 22 or the lower compression spring 23 is compressed, the corresponding The pressure value measured by the corresponding second pressure sensor is F, and the compression amount of the upper compression spring 22 or the lower compression spring 23 is M=F / k, where k is the elastic coefficient of the upper compression spring 22 and the lower compression spring 23; After the compression spring 22 or the lower compressi...

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Abstract

The invention relates to the technical field of puncture positioning, and discloses a puncture positioning device for nerve intervention. The puncture positioning device comprises a positioning pipe, wherein two positioning plates are arranged in the positioning pipe, two first threaded columns are fixedly connected to the positioning pipe, and the ends, away from the positioning pipe, of the first threaded columns are fixedly connected with movable blocks; each first movable ring sleeves the corresponding first threaded column, two connecting columns are fixedly connected to the positioning plates, one end of each connecting column penetrates through a movable hole in the positioning pipe and is fixedly connected with the corresponding first movable ring, one end of each connecting column is fixedly connected with the corresponding first movable ring, and each threaded ring sleeves the corresponding first threaded column; and an elastic adjusting piece is arranged between the threaded rings and the first movable rings, Force for clamping a puncture needle can be controlled, the height and angle of the puncture needle driven by the positioning plate to move can be freely adjusted, the operation steps are simple and convenient, and the safety in the puncture process is improved.

Description

technical field [0001] The invention belongs to the technical field of puncture and positioning, in particular to a puncture and positioning device for nerve intervention. Background technique [0002] In the process of treating patients, the hospital needs to pierce the puncture needle into the body cavity to extract body fluids for testing, or inject contrast agent into the body cavity for imaging examination, or inject drugs into the body cavity to treat the patient. Need to use a puncture positioning device. The existing puncture positioning device needs to be stuck on the body of the patient, which will cause discomfort to the patient during the operation, and due to the large number of puncture needles, the positioning device cannot well grasp the puncture distance. It is extremely inconvenient for doctors to operate. [0003] After searching, it was found that a puncture positioning device for neurointerventional surgery is disclosed in the Chinese patent with the a...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3403A61B17/3494A61B2017/3409
Inventor 张明勤苗牛杨冬谊刘阳阳
Owner THE FIRST AFFILIATED HOSPITAL OF HENAN UNIV OF TCM
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