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 10):
Use of the intravascular memory metal puncture system according to  claim 1 , wherein the intravascular memory metal puncture system is used for puncturing blood vessels or tissues or organs in a human body, and is used in a biopsy sampling of tumor in vivo, wherein a method for using the puncture system comprises:\n (i) at the temperature of T0, increasing the pitch of the second metal spiral hollow tube to open the split-shaped structure, and then inserting the interventional guidewire from a free end of the guide tube to pass through the second metal spiral hollow tube and finally out of the opened split-shaped structure, to move the split-shaped structure in the blood vessels of the body; (ii) after reaching a site to be punctured, withdrawing the interventional guidewire, inserting a syringe from the guide tube, and respectively injecting a physiological saline at the temperature of T1 into the second metal spiral hollow tube and the split-shaped structure when an needled of the syringe reaches a needle of the puncture system, and T1 is 5\u00b0 C.; wherein with the physiological saline being injected, a temperature of the needle of the puncture system is gradually decreased to 5\u00b0 C., the pitch of the second metal spiral hollow tube is gradually decreased, and thus the split-shaped structure is gradually closed, so as to puncture the blood vessels or tissues or organs, or perform the biopsy sampling.

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): 0.4761498074355708
- 35 USC 102 Novelty (BERT): 0.5445483970185568
- Combined Prediction Score: 0.4829896663938694
- Mean Citation Score: 265.8293
- Max Citation Score: 406.22845
- Similarity Product: 320.84326863297224

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

Dataset: test