Vacuum actuated tissue lifting device
First Claim
1. A vacuum-actuated tissue lifting medical device for creating an operative work space in a patient for a surgical procedure, comprising:
- (a) a housing having an opening for resting on a tissue surface of a patient, the housing defining an expansion space between the housing and the tissue surface for application of a negative pressure in the expansion space;
(b) a penetrator device located within the housing for penetrating into the tissue surface of the patient;
(c) a vacuum system in fluid communication with the housing for creating a negative pressure in the expansion space for advancing the tissue surface onto the penetrator device such that an operative work space is created beneath the tissue surface; and
(d) means for regulating the negative pressure in the housing when (i) the negative pressure in the expansion space exceeds a value;
(ii) the pressure in the operative work space exceeds a value;
or (iii) a combination of (i) and (ii).
2 Assignments
0 Petitions
Accused Products
Abstract
A vacuum-actuated tissue lifting medical device for creating an operative space in a patient for a surgical procedure is disclosed. The device includes a housing having an opening for resting on a tissue surface of a patient. The housing defines an expansion space between the housing and the tissue surface for application of a negative pressure in the expansion space. A penetrator device located within the housing can penetrate into the tissue surface of the patient. A vacuum system is in fluid communication with the housing for creating a negative pressure in the expansion space for advancing the tissue surface onto the penetrator device such that an operative work space is created beneath the tissue surface. A regulator controls the negative pressure in the housing when (i) the negative pressure in the expansion space exceeds a value; (ii) the pressure in the operative work space exceeds a value; or (iii) a combination of (i) and (ii).
106 Citations
11 Claims
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1. A vacuum-actuated tissue lifting medical device for creating an operative work space in a patient for a surgical procedure, comprising:
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(a) a housing having an opening for resting on a tissue surface of a patient, the housing defining an expansion space between the housing and the tissue surface for application of a negative pressure in the expansion space; (b) a penetrator device located within the housing for penetrating into the tissue surface of the patient; (c) a vacuum system in fluid communication with the housing for creating a negative pressure in the expansion space for advancing the tissue surface onto the penetrator device such that an operative work space is created beneath the tissue surface; and (d) means for regulating the negative pressure in the housing when (i) the negative pressure in the expansion space exceeds a value;
(ii) the pressure in the operative work space exceeds a value;
or (iii) a combination of (i) and (ii). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of performing a surgical procedure on a patient, comprising:
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(a) positioning a housing having a penetrator device disposed therein over a tissue surface of a patient; (b) applying a vacuum to the housing to create negative pressure in the housing such that the tissue surface is advanced towards the penetrator device; (c) causing the penetrator device to pierce into the tissue surface and into an operative work space; (d) applying a gas from the penetrator device into the operative work space for the expansion of the work space; and (e) regulating the negative pressure in the housing based on (i) the pressure in the operative work space;
(ii) the pressure in the housing;
or (iii) a combination of (i) and (ii).
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Specification