BONE ACCESS DEVICE HOLDER AND METHODS OF USE
Devices used to hold a tissue access device, such as a bone cannula, at an access site are disclosed. The devices may be configured to hold the access device in a stable orientation while keeping the hand of a medical practitioner outside of an x-ray radiation field. The devices further include a patient contact member to facilitate orientation of the tissue access device.
1 . An instrument for holding a tissue access device, comprising:
an elongate shaft having a proximal end and a distal end and configured to dispose a tissue access device within a radiation field;
a holding device disposed at the distal end configured to couple with the tissue access device; and
a handle disposed at the proximal end,
wherein movement of the handle from a location outside of the radiation field orients the tissue access device disposed within the radiation field.
2 . The instrument of claim 1 , wherein the holding device comprises at least two engagement members configured to engage a range of perimeter configurations of elongate portions of tissue access devices.
3 . The instrument of claim 2 , wherein at least one engagement member is displaceable relative to the other engagement member between a secure configuration and a release configuration such that the holding device is coupled to the access device in the secure configuration and the holding device is decoupled from the access device in the release configuration.
4 . The instrument of claim 3 , wherein displacement of the at least one engagement member is manually actuatable from the proximal end.
5 . The instrument of claim 4 , wherein the at least one engagement member is biased toward at least one of the secure and release configurations.
6 . The instrument of claim 1 , further comprising a patient contact member coupled to the shaft.
7 . The instrument of claim 6 , wherein the patient contact member is detachably coupled to a portion of the shaft extending proximally from the distal end.
8 . The instrument of claim 1 , wherein the instrument comprises a radiopaque portion configured to visibly assist with alignment of the access device with a predetermined tissue access path.
9 . The instrument of claim 1 , wherein the holding device is detachably coupled to the shaft at the distal end.
10 . The instrument of claim 1 , wherein a length of the shaft is adjustable over a range.
11 . The instrument of claim 1 , wherein at least a portion of the instrument is formed from a radiolucent material.
12 . A system for accessing tissue within a radiation field, comprising:
a tissue access device; and
a holder configured to dispose the tissue access device within a radiation field and orient the tissue access device from a location outside the radiation field,
wherein the holder comprises a shaft having a handle disposed at a proximal end and a holding device disposed at a distal end, and
wherein the holding device is configured to releasably couple with the tissue access device.
13 . The system of claim 12 , wherein the holding device is configured to couple to the tissue access device in a predefined orientation relative to the handle.
14 . The system of claim 12 , wherein the holding device is actuatable by a user.
15 . The system of claim 14 , further comprising a depressible member configured to actuate the holding device from a location outside the radiation field.
16 . A method of accessing bodily tissue of a patient, comprising:
obtaining an access device holder configured to hold a tissue access device within a radiation field;
coupling the holder with a tissue access device;
disposing the tissue access device within a radiation field;
orienting the tissue access device to align with a predetermined tissue access path; and
inserting the tissue access device into a target tissue.
17 . The method of claim 16 , wherein coupling the holder with the tissue access device comprises actuating a depressible member coupled to the holder.
18 . The method of claim 16 , wherein the access device comprises at least one of a bone access device, a biopsy needle, a trocar, a cannula and a bone cement delivery system.
19 . The method of claim 16 , wherein inserting the tissue access device into a target tissue comprises longitudinally displacing the tissue access device relative to the access device holder.
20 . The method of claim 16 , further comprising de-coupling the holder from the tissue access device wherein the de-coupling comprises actuating a depressible member disposed outside the radiation field.