Measuring guide wire for blood pressure in blood vessels

A technology of blood pressure measurement and guide wire, which is applied in the field of medical devices to achieve the effect of ensuring transmission connectivity and reducing alignment requirements

CN106214140APending Publication Date: 2016-12-14SUZHOU GENKE MEDICAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-12-14

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Abstract

The invention relates to a measuring guide wire for blood pressure in blood vessels. A guide wire far-end main body comprises an inner core wire and a far-end soft section, a developing ring, a near-end soft section, a near-end pipe body, a pressure sensor and a plurality of guide wires which sleeve the inner core wire, wherein a near-end connecting section comprises a plurality of electric conductive rings and a plurality of inner-layer insulation rings; a rear-end pipe body is coaxially arranged with the electric conductive rings and the inner-layer insulation rings; the inner-layer insulation rings are locally located in the electric conductive rings; the outer diameter of the rear-end pipe body is identical to the outer diameters of the electric conductive rings; the near-end connecting section further comprises a plurality of connectors which are respectively arranged on the outer side of the inner-layer insulation rings and can cause the near-end pipe body and the electric conductive ring adjacent to the near-end pipe body as well as the adjacent electric conductive rings smoothly transit. According to the invention, the transmission connectivity of the pressure signal is ensured, the matching degree between the measuring guide wire and the other endovascular intervention instruments (such as, balloon catheter, bracketry and microtubule) is enhanced and the requirement for the insulation ring alignment in the assembling process of the electric conductive rings is reduced.
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Description

technical field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an intravascular blood pressure measuring guide wire used in vascular interventional operations. Background technique

[0002] Myocardial ischemia caused by coronary artery stenosis requires revascularization of ischemia-related diseased vessels. Before determining the revascularization strategy, it is first necessary to find conclusive evidence of ischemia. At present, simple coronary angiography has limitations in identifying the culprit lesion causing ischemia, especially for intermediate lesions on imaging. The uncertainty caused by such limitations may mislead interventional physicians to deal with stenotic lesions that have no clinical significance, leading to over-medication, or failure to deal with ischemia-related vessels in a timely manner, resulting in patients not being treated effectively.

[0003] Since Nico Pijls and De Bruyne proposed in the ...

Examples

Embodiment Construction

[0047] The present invention will be described in further detail below in conjunction with specific examples, but the present invention is not limited to the following examples.

[0048] The "proximal end" and "distal end" mentioned in the present invention refer to the distance between the intravascular blood pressure measurement guide wire and the person during use, and the direction close to the implementer is the proximal end, and vice versa is the distal end. In the drawings, the distal end is described as figure 1 The right side of the soft segment 1 at the distal end shown in figure 1 The right side of the proximal connection section 6 shown in is defined.

[0049] Such as figure 1 As shown, the intravascular blood pressure measurement guide wire of the present invention includes a guide wire distal body and a proximal connection section 6 connected with a handle to output signals. The main body of the distal end of the guide wire includes an inner core wire 13, and ...