Tunneling guidewire
First Claim
Patent Images
1. A tunneling guidewire system for subcutaneously routing tubing within a human patient, comprising:
- a cannula defining a hollow passage; and
a guidewire extendable through the hollow passage of the cannula;
wherein the guidewire comprises a stiffness, k, between about 100,000 and 30,000,000 Newtons per meter for extravascularly routing the guidewire.
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Abstract
A medical device tunneling system, and a method of using the same, to subcutaneously route trocars, also commonly referred to as tunnelers, or introducers, having a cannula, stylet, and a guidewire stylet, inside a patient during a surgical procedure, such as a ventriculoperitoneal hydrocephalus shunt implantation, from a proximal entry point to a distal end point, in order to subcutaneously route and implant a medical device, such as shunt tubing, in a patient.
47 Citations
21 Claims
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1. A tunneling guidewire system for subcutaneously routing tubing within a human patient, comprising:
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a cannula defining a hollow passage; and a guidewire extendable through the hollow passage of the cannula; wherein the guidewire comprises a stiffness, k, between about 100,000 and 30,000,000 Newtons per meter for extravascularly routing the guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A tunneling guidewire system for subcutaneously routing tubing within a patient, the system comprising:
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a cannula defining hollow passage; and a guidewire-stylet comprising a guidewire portion and a stylet portion, the guidewire portion being coupled to the stylet portion, the guidewire-stylet being extendable through the hollow passage of the cannula, wherein the guidewire portion comprises a stiffness, k, between about 100,000 and 30,000,000 Newtons per meter for extravascularly routing the guidewire portion. - View Dependent Claims (19, 20, 21)
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Specification