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Results for “Surgical Instruments”

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At least 127 records · Page 7Linked to original sources
PubMed1983

[A new surgical instrument for the removal of varicose branches of the saphenous vein].

A new instrument, specially devised and constructed for varicose saphenous vein branches excision through small skin incisions non requiring suture, is described. The instrument's utilization in the surgical treatment of varices of the lower limbs is explained. The significant shortening of the whole surgical procedure and the optimal cosmetic appearance of the operated limbs, are the most outstanding advantages of the presented technique compared with the commonly employed ones.

Humans↗
PubMed1984

Sterilization and care of surgical instruments and supplies.

Adequate instrument handling and sterilization are important aspects of office surgery. Heat sterilization is the most reliable choice. The steam autoclave is highly recommended. Dry heat is effective but can pose some storage problems. Gas sterilization is useful for heat-sensitive materials but not practical for the private office. Cold "sterilization" is not reliable for incisional surgery. In addition to proper sterilization modality selection, the surgeon must observe important standards of instrument care, packing, and storage.

Ambulatory Surgical Procedures↗
PubMed2006

Initial clinical experience with a partly autonomous robotic surgical instrument server.

BACKGROUND: The authors believe it would be useful to have surgical robots capable of some degree of autonomous action in cooperation with the human members of a surgical team. They believe that a starting point for such development would be a system for delivering and retrieving instruments during a surgical procedure. METHODS: The described robot delivers instruments to the surgeon and retrieves the instruments when they are no longer being used. Voice recognition software takes in requests from the surgeon. A mechanical arm with a gripper is used to handle the instruments. Machine-vision cameras locate the instruments after the surgeon puts them down. Artificial intelligence software makes decisions about the best response to the surgeon's requests. RESULTS: A robot was successfully used in surgery for the first time June 16, 2005. The operation involved excision of a benign lipoma. The procedure lasted 31 min, during which time the robot performed 16 instrument deliveries and 13 instrument returns with no significant errors. The average time between verbal request and delivery of an instrument was 12.4 s. CONCLUSIONS: The described robot is capable of delivering instruments to a surgeon at command and can retrieve them independently using machine vision. This robot, termed a "surgical instrument server," represents a new class of information-processing machines that will relieve the operating room team of repetitive tasks and allow the members to focus more attention on the patient.

Adult↗
PubMed2002

Computer-assisted evoked electromyography with stimulating surgical instruments for recurrent/external laryngeal nerve identification and preservation in thyroid and parathyroid operation.

BACKGROUND: The reported incidence of recurrent laryngeal nerve (RLN) palsy/paralysis in thyroid and parathyroid operation ranges from 2% to 13%. Injury to the external branch of the superior laryngeal nerve (EBSLN) is less clearly documented. We hypothesized that a novel evoked electromyography system using an audio warning alarm might be beneficial for detection and preservation of the RLN and EBSLN. METHODS: A total of 117 thyroid/parathyroid operations were performed using a nerve locator/monitor (Neurovision SE, RLN Systems Inc, Jefferson City, Mo). Dissection was performed using a stimulating hemostat with conduction to an endotracheal surface electrode. RESULTS: A total of 97 thyroidectomies (50 total, 47 lobectomies) and 20 parathyroidectomies (16 directed, 4 bilateral) were performed representing 176 RLN and 152 EBSLN at risk. Of 176 RLN, 161 were correctly identified by the nerve stimulator alarm including 2 nonrecurrent nerves. The cricothyroid space and the superior pole vessels were scanned to identify the EBSLN by observing for cricothyroideus contraction or an alarm. Fourteen of 152 (8.9%) cases of type 2 anatomy were suggested where meticulous dissection of superior pole vessels prevented EBSLN injury. CONCLUSIONS: Computer-assisted evoked electromyography with stimulating surgical instruments is a useful surgical tool. This technology may be especially useful in reoperation in dense scar tissue and preserving the EBSLN in thyroid operation.

Diagnosis, Computer-Assisted↗
PubMed1995

Cost reduction of skin biopsy and surgical instrumentation.

Saving the physicians time is very desirable in rendering first-rate dermatological service at lower cost. The aim is to reduce surgical instrumentation during skin biopsy procedures and follow-up visits. A combined instrument is used to obtain skin biopsies from 100 patients, and gelatin sponge plugs are used in hemostasis and to assist healing of the biopsy wound site. Skin biopsy samples are obtained simply and with ease, and, as the tissue sample is handled minimally, it appears to be more intact and less distorted in comparison to the usual procedure. Skin biopsy samples can be obtained with the combined instrument in a more cost-effective manner with savings of the physician's time and less instrumentation.

Anesthesia, Local↗
PubMed1975

Surgical instruments and dressings: an information service.

A regional information service on surgical equipment, instruments, and dressings is proposed that would be staffed by information scientists. It would appreciably reduce the time spent on administration and make the buying of equipment more efficient. Such a service could be extended to all health service staff.

Bandages↗
PubMed2005

Biomechanical simulations of scoliotic spine correction due to prone position and anaesthesia prior to surgical instrumentation.

BACKGROUND: The positioning of patients during scoliosis surgery has been shown to affect the scoliosis curve, yet positioning has not been exploited to help improve surgical outcome from a biomechanics point of view. Biomechanical models have been used to study other aspects of scoliosis. The goal of this study is to simulate the specific influence of the prone operative position and anaesthesia using a finite element model with patient personalized material properties. METHODS: A finite element model of the spine, ribcage and pelvis was created from the 3D standing geometry of two patients. To this model various positions were simulated. Initially the left and right supine pre-operative bending were simulated. Using a Box-Benkin experimental design the material properties of the intervertebral disks were personalized so that the bending simulations best matched the bending X-rays. The prone position was then simulated by applying the appropriate boundary conditions and gravity loads and the 3D geometry was compared to the X-rays taken intra-operatively. Finally an anaesthesia factor was added to the model to relax all the soft tissues. FINDINGS: The behaviour of the model improved for all three positions once the material properties were personalized. By incorporating an anaesthesia factor the results of the prone intra-operative simulation better matched the prone intra-operative X-ray. However, the anaesthesia factor was different for both patients. For the prone position simulation with anaesthesia patient 1 corrected from 62 degrees to 47 degrees and 43 degrees to 31 degrees. Patient 2 corrected from 70 degrees to 55 degrees and 40 degrees to 32 degrees for the thoracic and lumbar curves respectively. INTERPRETATION: Positioning of the patient, as well as anaesthesia, provide significant correction of the spinal deformity even before surgical instrumentation is fixed to the vertebra. The biomechanical effect of positioning should be taken into consideration by surgeons and possibly modify the support cushions accordingly to maximise 3D curve correction. The positioning is an important step that should not be overlooked by when simulating surgical correction and biomechanical models could be used to help determine optimal cushion placement.

Adolescent↗
PubMed1987

Surgical instrumentation cart.

We describe the design of a surgical equipment/instrumentation cart that provides accessibility, mobility, convenience, conservation of floor space, and efficient use of vertical air space. This multiple-shelf cart allows organization and coordination of multiple pieces of equipment. The attached working shelves replace the multiple Mayo stands and free up needed floor space. This cart provides for easy storage and unnecessary movement of equipment and potential damage. The power strips on the rear of the cart eliminate the multiple electrical cords and potential injury to operating personnel and equipment malfunction.

Ophthalmology↗
PubMed1998

[Evolution and infection control security in endoscopic surgical instrumentation].

The evolution of the endoscopic equipment in gynecologic surgery for the last years makes this procedure easier, more reliable and performant, with decreased morbidity. The instruments are more and more specific. The place and the interest for single use instruments will probably be modified. On the other side, nosocomial infections are spreading and the sterilisation procedures of the endoscopic surgical instruments, often more flimsy, are more drastic. It modify the working plan and the functioning costs of the operative rooms but it's now a legal point to respect this evolution.

Cross Infection↗