RU32678U1 - Radio wave adapter for endoscopic surgery - Google Patents

Description

Radio wave adapter for endoscopic surgery

The utility model relates to medicine, more specifically to gastroenterology.

By combining the source of radio wave radiation (for example, Surgitron) and endoscopic instruments with the help of our proposed adapter, it becomes possible to use radio wave surgical equipment when performing various endoscopic operations on the organs of the gastrointestinal tract.

For various diseases of the gastrointestinal mucosa, it becomes necessary to perform incisions (for example, during retrograde papillosphincterotomy), remove mucosal neoplasms (for example, polyps of the stomach and colon), take a hot biopsy, and stop bleeding.

Known adapter, which serves to connect the electrosurgical unit that generates an alternating current of high frequency with instruments conducted through an endoscope to destroy and cauterize the gastrointestinal mucosa. (Endoscopic prognosis and prevention of recurrent bleeding with peptic ulcer, 1998; Korotkevich A.G., Menshikov V.F., Krylov Yu.M.).

To work with endoscopic instruments, the electrocoagulator is connected to a universal endoscopic handle, which is fixed on the instrument - papillotome, loop for polypectomy, etc. The connection is through a special adapter, having on one side

a plug for contact with an electrocoagulator, and on the other hand a connector for connecting with an endoscopic handle. Between the plug and the connector is a wire in an insulating braid for conducting high-frequency current.

The disadvantage of the adapter for the electrocoagulator is the restriction of its use only for electrosurgical units, and the use of high-frequency alternating current is associated with a high risk of perforation of the intestinal wall due to a deep burn with an electric spark. In addition, with endoscopic diathermocoagulation, technical difficulties arise associated with the supply of an electrically conductive fluid through a catheter electrode.

The objective of this utility model is to reduce the risk of perforation of the intestinal wall during endoscopic surgery on the gastrointestinal tract. And the reduction in the cost of surgical endoscopic procedures in a wide healthcare sector.

The problem is solved in that in endoscopic operations on the organs of the gastrointestinal tract, exposure is carried out by radio waves with a frequency of 3.8-4 MHz and a power of 4.5 - 6.5 W., using an adapter that connects a source of radio waves (for example, Surgitron) with a universal endoscopic handle that is fixed to the endoscopic instrument. Adapter, has one

2 sides connector for connecting to a radio wave generator, and on the other

side copper holder, for connection with an endoscopic handle. Between the connector and the holder - two meters of copper wire in an insulating sheath for the behavior of the radio wave.

Figure 1 presents a sectional drawing of a radio wave endoscopic adapter. The adapter for radio wave endoscopic surgery consists of a copper connector 1, 24 mm long. The connector on one side has a blind hole 6 mm long and 2 mm in diameter, for connecting to a copper cable, and on the other hand a hollow tip 3 with a length of 15 mm., For contact with the radio wave generator (for example, Surgitron), not shown in the drawing. On the proximal side, the connector has an external thread M-6 with a length of 9 mm .. This thread is used to fix the insulating plastic cylinder 4, 25 mm long. and a diameter of 10 mm .. The connector is connected to a flexible copper multicore cable 2, cross-section of 1.5 mm. and 200mm long. The cable is insulated in a vinyl tube. From the distal side, the cable is connected to a copper holder 5, length 58mm. On one side, the holder has an external thread M-5, length 48mm., Onto which a plastic hollow cylinder 6 is screwed, with a diameter of 11mm. and 51mm long. There is a blind hole with a diameter of 2 mm for connecting to the cable in the proximal part of the holder. and 15mm long. The distal part of the holder, 10 mm long. has a blind hole, 12mm long., with a diameter of Zmm. The distal part of the holder is cut into 4 parts in the form of petals, 10 mm long for the best

3 contacts with a plug of the universal endoscopic handle. Hollow

a plastic cylinder 6, which is screwed onto the distal part of the holder, is connected using an M-7 thread, 8 mm long. with a plastic tip 7, which insulates the distal part of the holder. A plastic hollow tip, 18 mm long., On the proximal side has an M-7 internal thread, 8 mm long, the central part is 6 mm long and 11 mm in diameter. and the distal part is 4 mm long and 7 mm in diameter.

In working condition, the radio wave endoscopic adapter is connected through connector 1 to a radio wave generator that operates at a frequency of 3.8 MHz (for example, a Surgitron radio wave device) on the one hand, and on the other hand, using a holder 5 with a universal endoscopic handle, which is fixed on instrument - papillotome, loop for polypectomy, etc. When you turn on the device "Surgitron, the adapter conducts a radio wave on

endoscopic instrument.

Clinical example. Patient M. No. 18516 was taken to the city hospital No. 3 of the mountains. Zelenograd ambulance with a clinic of gastrointestinal bleeding. In the history of 1980, peptic ulcer of the duodenum. During an endoscopic examination performed urgently in the duodenal bulb, a ulcerative defect was found on the upper-posterior wall, measuring 1.8 by 2.2 cm, with dense, undercut edges. The ulcer is partially covered by a fresh blood clot with active leakage of fresh

4 blood from under a clot. Given the bleeding clinic, it was decided to perform

endoscopic hemostasis. An electrode with a cone-shaped tip connected by an adapter to the Surgitron. Radio wave source was passed through a biopsy channel of the gastroscope to the source of bleeding. Hemostasis is carried out on a partially rectified wave mode, which corresponds to coagulation parameters and 6.5 W power. Bleeding is stopped. Repeated endoscopic examination of the patient was carried out 12 hours later and on the second day after hospitalization. Bleeding did not resume. Against the background of conservative therapy, the ulcer healed on day 18. Diagnostic gastroscopy of the patient was performed after three months. Moderate cicatricial deformity of the duodenal bulb is preserved. The patient feels well, leads an active lifestyle.

We performed endoscopic surgeries using an endoscopic adapter for conducting radio waves in 107 patients with various pathologies - for removing benign tumors of the gastric mucosa and colon - 48, for endoscopic hemostasis with bleeding from stomach and duodenal ulcers in 37 patients, for papillosphincterotomy in 22 patients , for taking a hot biopsy in 5 patients. There were no complications when performing radio wave endoscopic operations.

5

Claims (2)

1. The adapter for endoscopic operations by the radio wave method, including an insulated wire for passing radio waves and connecting elements, characterized in that one end of the wire is fixed in a connector fixed in an insulating cylinder with a tip for connecting to a source of radio waves with a power of 4.5-6.5 W radiating radio waves with a frequency of 3.8-4 MHz, and the other end of the wire is fixed in a holder placed in an insulating cylinder with a tip connected to the holder and to the endoscopic handle of the surgical The instrument. 2. The adapter according to claim 1, characterized in that the insulating cylinder with a connector and the insulating cylinder with a tip and with a holder are connected by a thread.