45 results about "Tissue pressure" patented technology

The invention relates to an intelligent instrument for measuring the tissue thickness. The intelligent instrument comprises a button cell type intelligent thickness measuring clip or an external power supply type intelligent thickness measuring clip, a linear incision anastomat or a manual thickness measuring instrument or an automatic thickness measuring instrument, and a staple anvil. The button cell type intelligent thickness measuring clip comprises an outer shell, a pressing key, waterproof soft glass, an integrated circuit board and a bottom cover. The waterproof soft glass is arranged between the pressing key and the integrated circuit board and covers the surface of the pressing key. A button cell, a power module, a display module, a tissue pressure intensity measuring module, a tissue thickness measuring module, a control module and a wireless transmission module are mounted on the back face of the integrated circuit board. An eddy-current transducer and a pressure sensor are mounted on the front face of the integrated circuit board. The button cell type intelligent thickness measuring clip is matched with a wireless transmission device. The intelligent instrument for measuring the tissue thickness has the advantages that the tissue thickness can be measured in a quantitative mode, tissue thickness measurement is accurate, corresponding anastomotic staple cartridges can be selected conveniently, and the success rate of anastomotic surgery is increased.

A tissue press for shaping or compressing a piece of tissue comprises first and second members movable relative to each other. A first forming element of a predetermined shape is selectively engageable on the first member. A second forming element of predetermined shape is selectively engageable on the second member. The first and second forming elements are positionable on opposite sides of the piece of tissue. The first and second members are relatively movable between a first spaced apart condition and a second condition in which the piece of tissue is held between the first and second forming elements. Means are preferably provided for monitoring and controlling the amount of pressure applied to the piece of tissue, in order to maintain the tissue in a viable living condition. Means may also be provided for draining off fluid from compressed tissue, so that the tissue can be implanted in a compressed state and imbibe fluid from the host site. A retainer, which may be expandable, can be used to maintain the tissue graft in a compressed condition.

The present invention provides a medical support pillow and method for supporting a patient in the lateral position while maintaining an open airway. The lateral airway support pillow includes a chest support, a shoulder recess, a head support and a posterior bolster. The orientation of these components support the patient in the lateral position, with the spine and airway in a straight position, thus eliminating possible airway obstruction. One embodiment of the invention contains a head support with a posterior recess and a neck support which provides for straightening of the neck and airway and aligning the oral, pharyngeal, and laryngeal axes of the airway. Other embodiments position and elevate the patient in such a manner to treat or prevent soft tissue pressure injury, gastroesophageal reflux, congestive heart failure, or sleep apnea.

Described is a method and system providing therapeutic positive airway pressure to a particular area of patient's airways. The system may include a flow generator and a processing arrangement. The flow generator supplies an airflow to an airway of the patient. The processing arrangement is connected to the flow generator to control a supply pressure at which the airflow is generated by the flow generator. The processing arrangement continuously adjusts the supply pressure to maintain a pressure in a predetermined portion of the patient's airway substantially constant. The predetermined portion of the patient's airway includes a collapsible portion of an upper airway of the patient. The processing arrangement also controls the supply pressure to maintain the pressure in the collapsible portion of the patient's airway at a value at least as great as a tissue pressure below which the collapsible portion collapses.

The present invention is directed to therapeutic compounds, treatment methods, and kits affecting the NCCa-ATP channel of neural tissue, including neurons, glia and blood vessels within the nervous system, and methods of using same. The NCCa-ATP channel is newly expressed in neural tissue following injury such as ischemia, and is regulated by the sulfonylurea receptor SUR1, being inhibited by sulfonylurea compounds, e.g., glibenclamide and tolbutamide, and opened by diazoxide. Antagonists of the NCCa-ATP channel, including SUR1 antagonists, are useful in the prevention, diminution, and treatment of injured or diseased neural tissue, including astrocytes, neurons and capillary endothelial cells, that is due to ischemia, tissue trauma, brain swelling and increased tissue pressure, or other forms of brain or spinal cord disease or injury. Agonists of the NCCa-ATP channel may be are useful in the treatment neural tissue where damage or destruction of the tissue, such as a gliotic capsule, is desired.

Provided is a durable oxygen sensitive probe of sufficient strength to withstand direct tissue pressures in vivo, the probe comprising a sensor chamber within a biocompatible, gas-permeable membrane containing an oxygen sensitive analyte solution producing oxygen quenchable phosphorescence when excited. Further provided is a tissue oxygen detection and measurement system comprising the probe, and methods for use of the probe and the system to directly, rapidly and accurately measure tissue oxygen levels in a patient without reliance on blood vessels or fluid protection of the probe.

The invention relates to a medical care auxiliary appliance, in particular to bedsore-proof early warning device. The bedsore-proof early warning device is provided with a pressure sensitive element, a tissue hypoxia degree monitoring device, a data processing unit and an alarm unit. When in use, the pressure sensitive element is attached to a bedsore-susceptible part to monitor the pressure of the part, and the tissue hypoxia degree is monitored by an instrument, thereby the actual hypoxia degree of the tissue at the pressed part of a patient can be mastered in time. When the local tissue pressure of an individual exceeds a certain range and lasts for a certain time, and the oxygen partial pressure of the tissue is lowered and possible to cause ischemic hurt, the bedsore-proof warning device warns to prompt the medical personnel and caregiver to be on guard that the patient is in the risk of suffering bedsore and take measures in time such as turning over the body of the patient to prevent bedsore. The bedsore-proof early warning device greatly lowers the workload of the nursing personnel and reduces the pain of the seriously ill patients.

An improved shunt valve for the control of hydrocephalus provides for physiological atmospherically-referenced siphon control that is not adversely affected by overlying tissue. The valve includes one or more porous outer anti-fouling membranes to protect the flow control membranes from external mechanical tissue pressure, while permitting free movement of the flow control moveable membranes and permitting positive inlet pressure to regulate flow through the improved fluid shunt valve of the invention. The porous membranes are configured to prevent tissue ingrowth into the membranes pores while allowing adequate fluid flow across so as not to inhibit movement of the movable membrane.