PATENT CLAIM ANALYSIS

Application Number: 16374072
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2020-01
Patent Classification: ["600", "567000"]

Abstract:
This disclosure provides an intravascular memory metal puncture system and the use thereof. The puncture system comprises a hollow guide tube and a head portion, the hollow guide tube has a spiral structure made of metal and composed of a plurality of spiral coils, the head portion comprises a split-shaped structure capable of opening and closing, as well as a metal spiral hollow tube including a plurality of spiral coils, wherein the split-shaped structure and the metal spiral tube are made of memory metal, and the split-shaped structure is composed of a plurality of tapered petals; when each of tapered petals is closed, the split-shaped structure is a conical structure; when the temperature is T1, the pitch between two adjacent spiral coils in the metal spiral tube is decreased, each of tapered petals in the split-shaped structure is closed; when the temperature is T0, the pitch between two adjacent spiral coils in the metal spiral tube is increased, and each of tapered petals is opened. The puncture system achieves synergistic effect of various components therein, so that it not only can move well in the blood vessels, but also can accurately pierce the blood vessel wall, and achieve effective sampling for biopsy.

Claim (Index 1):
An intravascular memory metal puncture system, wherein the puncture system comprises a hollow guide tube and a head portion, the guide tube has a first spiral structure made of metal which is composed of a plurality of spiral coils; the head portion comprises a split-shaped structure capable of opening and closing, and a second metal spiral hollow tube including a plurality of spiral coils; wherein the split-shaped structure and the second metal spiral hollow tube are made of a memory metal, and the split-shaped structure is composed of a plurality of tapered petals;\n at a temperature of T0, a pitch between two adjacent spiral coils of the second metal spiral hollow tube is increased, such that each of the tapered petals of the split-shaped structure is opened to allow an interventional guidewire to pass through during using of the memory metal puncture system, wherein increasing of the pitch enhances flexibility of the second metal spiral hollow tube, thereby enabling the second metal spiral hollow tube to move in blood vessels of a body; and wherein the split-shaped structure after opening is a cylindrical structure having a plurality of tapered notches on a wall and an open cavity at a center; at a temperature of T1, the pitch between two adjacent spiral coils of the second metal spiral hollow tube is decreased, such that each of the tapered petals of the split-shaped structure is closed, and thus the split-shaped structure exhibits a conical structure to increase a strength of the split-shaped structure to pierce walls of the blood vessels; wherein the temperature of T0 is higher than the temperature of T1.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 100.0
- Lexical Diversity: 2.6
- Patent Class: 600.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['16373771', '16372989', '15605546', '13918906', '10287922']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4776491905305224
- 35 USC 102 Novelty (BERT): 0.5423968564262698
- Combined Prediction Score: 0.4841239571200972
- Mean Citation Score: 265.8293
- Max Citation Score: 406.22845
- Similarity Product: 287.8104467496336

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test