Catheter for urinary tract

 

(57) Abstract:

The invention relates to medical equipment, namely to the catheter to drain urine in male patients. The technical result is an improvement of urination by preventing splashing of urine when using the catheter to the urethra. Catheter for urinary tract is made in the form of an open on one side and the two ends of the flexible cannula. The distal end of the catheter comprises a cylindrical element with clearance of circular cross-section and with a bell. The transverse diameter of the socket is a pair of mounting holes of circular cross section. 2 Il.

The invention relates to medical equipment, namely to the catheter to drain urine in male patients.

As well known catheter for the urethra, which have uneven thickness of the walls of the flexible cannula that is open on two ends. Optionally, the user can change the longitudinal bending of the cannula to ensure satisfactory operation in various conditions [(PCT (WO) N 86/05403, N 9, 1987)].

However, the known catheter for the urethra does not provide the full traumatism ispolzovaniya channel, that is not always possible in the presence of wound surface or pathological changes.

The closest to the proposed catheter for the urethra on the technical nature of a catheter in the form of an elongated trough open and beveled ends. The catheter is placed in the hanging part of the male urethra and filed distal end to meatus (Atlas of Pediatric urologic surgery /by Frank Hinman/, 1994, p.558).

However, the known catheter for the urethra does not prevent splashing of urine in its use, because, first, its outer end forms a discontinuous profile (cross-section of the gutter) and, therefore, the stream of urine is not output monolithic; secondly, with long-term standing of the catheter in the urethra, inflamed mucous can fill through the top slot of the cannula portion of its lumen, thereby to deform and reduce the cross-sectional area of the urine stream at the outlet, reverse the strengthening of its spray.

The technical result of the invention is to improve urination by preventing splashing of urine when using the catheter to the urethra. The technical result is achieved by Chuli, what's new is that the distal end of the catheter comprises a cylindrical element with a bell and a pair of mounting holes of circular cross section.

A cylindrical element with a bell on one end of the flexible cannula helps to maintain the integrity of the urine stream, because the circular cross section of the lumen of the above-mentioned end of the cannula provides the direction and uniformity of the axial velocity of the jet of urine and prevents twisting and discretion throughout the volume of the cylindrical element and, thereby, prevents splashing of urine. The cylindrical socket element cannula provides a stable compensation area meatal section when the catheter in the urethra due to prolapse of urothelia in the lumen of the catheter, which in turn prevents the splashing of urine. Moreover, the socket cannula contributes to the depreciation on the glans penis, as wedge-shaped blocks and absorbs the reciprocating oscillation of the catheter during urination - with variations of hydrodynamic pressure. The mounting holes of circular cross section on a cylindrical element cannula ensure axisymmetric and preformed fitting to the outer hole mocheispuskatelnogo apostolically analysis of the prototype shows that the claimed catheter for urinary tract differs in that its distal end provided with a cylindrical element with a bell and a pair of mounting holes of circular cross section.

Thus, the claimed catheter for the urethra meets the criteria of the invention of "novelty". A new set of features enables to achieve a high positive effect, consisting in the improvement act of urination by preventing splashing of urine during use of the catheter. Therefore, the decision has "industrial applicability".

The essence of the proposed catheter for urinary tract is illustrated by drawings, where Fig. 1 shows a General view of the catheter, and Fig. 2, the catheter is fixed in the hanging part of the penis. Catheter for urinary tract is made in the form of an open on one side and the two ends of the flexible cannula (1). One end (2) of the cannula beveled at an acute angle to its longitudinal axis. The opposite end of the cannula is equipped with a cylindrical element (3) with socket (4) and a pair of mounting holes of circular cross section (5).

Catheter for urinary tract is used as follows. After surgery on muscarine the opening of the urethra is injected, pretreated with glycerol, the catheter beveled forward end further deepen the cylindrical element to the contact of its socket with an external opening of the urethra. Through the mounting holes of the cylindrical element stitch meatus at 3 and 9 hours nonabsorbable ligature on atraumatic needle (4/00). By tying the ends of the ligatures conduct accurate adjustment and fixation of the catheter to the head of the penis. In the postoperative early period (several hours) the restoration of the physiological act of urination through the catheter, which does not require additional care during use and atraumatic is removed from the urethra medical requirement.

Example. Boy C., for 12 years. Diagnosis: Peniamina hypospadias, urethral fistula; 6 months urethroplasty for Dupley, the postoperative period was complicated by fistula (8 mm x 5 mm). 26.11.1998, we performed surgery suturing the urethral fistula with the movement of the skin flap. At the final stage of the operation in the hanging wall of the urethra placed the proposed catheter (F= 15) and filed through the mounting holes to the head of the penis. Postoperative period was without slotki, urine flow monolithic output, not sprayed with acceptable range. The wound healed by first intention, and the seams and the catheter removed on the 8th day after the operation, the next day the patient was discharged from hospital. Viewed through the month. No complaints. Urination is normal. Healthy.

Thus, the proposed catheter for urinary tract provides improved urination by preventing splashing of urine when using it protects surgical wounds urethra from leakage of urine and optimizes its healing.

Catheter for urinary tract is made in the form of an open on one side and the two ends of the flexible cannula, wherein the distal end of the cannula is equipped with a cylindrical element with clearance of circular cross section and the socket, and the transverse diameter of the socket is a pair of mounting holes of circular cross section.

 

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SUBSTANCE: one should perform puncturing of epidural space at Th12-L1 level. Through the lumen of puncture needle one should introduce catheter to move it cranially at the depth of 3 cm. After that one should inject 10 ml 05%-marcaine solution to perform repeated injections per 5.0 ml every 4 h during 1-8 d. The effect is achieved due to unloading minor cycle of circulation.

EFFECT: higher efficiency of therapy.

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