Tissue Dilation Systems and Related Methods
First Claim
1. A tissue dilation system, comprising:
- a tissue penetrating member including an expandable body portion deployable from a first configuration suitable for insertion through a skin region of a patient toward a target structure located in the patient, to a fully expanded second configuration effective in dilating tissue located around the body portion and between the skin region and the target structure when the tissue penetrating member is located in the patient; and
a sleeve including a lumen dimensioned to accommodate the expandable body of the tissue penetrating member in the fully expanded second configuration, the sleeve providing access to the target structure from the skin region.
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Accused Products
Abstract
A tissue dilation system is described which effectively provides an access path from a skin surface region to a target structure located in the body of a patient. The present tissue dilation system includes a tissue penetrating member and a sleeve. The tissue penetrating member includes an expandable body portion that can be inserted through the skin of a patient in a first configuration, and can be deployed into a fully expanded second configuration to dilate tissue surrounding the body portion. The sleeve is placed over the expanded body portion in the fully expanded second configuration. When the tissue penetrating member is removed from the sleeve, an access path is provided to the target structure from the skin region. When the present systems are used in combination with bone fixation devices, the present systems can provide a suitable path from the skin surface to a bony target structure, such as vertebrae, of the patient. Kits containing the present systems and methods of using such systems are also described.
169 Citations
35 Claims
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1. A tissue dilation system, comprising:
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a tissue penetrating member including an expandable body portion deployable from a first configuration suitable for insertion through a skin region of a patient toward a target structure located in the patient, to a fully expanded second configuration effective in dilating tissue located around the body portion and between the skin region and the target structure when the tissue penetrating member is located in the patient; and a sleeve including a lumen dimensioned to accommodate the expandable body of the tissue penetrating member in the fully expanded second configuration, the sleeve providing access to the target structure from the skin region. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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6. The system of claim 6, wherein the fluid delivery device comprises a syringe containing gas or liquid to inflate the expandable body portion.
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27. A method of providing access to a target structure in a patient, comprising:
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inserting an expandable body portion of a tissue penetrating member in a first configuration through a skin region into tissue of a patient; deploying the expandable body portion into a fully expanded second configuration to dilate the tissue surrounding the body portion; placing a sleeve over the expanded body portion in the tissue of the patient to provide access to the target structure from the skin region; and removing the tissue penetrating member from the sleeve. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification