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Posterior urethral probe and puncture needle

A puncture needle and probe technology, applied in the directions of puncture needles, trocars, wound clips, etc., can solve the problems of difficult puncturing, unreliable methods, and easy damage to the rectum, so as to achieve less surgical trauma, reduce intraoperative damage, and avoid blindness effect

Inactive Publication Date: 2007-11-28
JIANGSU PROVINCE HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic Fan Lixin et al. used F7 ureteral catheters and 16-gauge injection needles to penetrate the urethra under the peeping of the cystoscope. In this method, the F20 urethral probe inserted from the cystostomy stoma to the posterior urethra is in contact with the needle tip of the catheter. Guided by feeling to pass through the atresia narrow segment, the operator inserts the index finger into the anus to hold the mirror sheath and adjust the position of the proximal probe.

Method used

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  • Posterior urethral probe and puncture needle
  • Posterior urethral probe and puncture needle
  • Posterior urethral probe and puncture needle

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Referring to Fig. 1 and Fig. 2, a posterior urethral probe for treating urethral stricture or atresia includes a probe body, which is characterized in that the probe body is composed of a sheath body 1, an arc segment 6 and a front straight segment 11 which are connected in sequence. The probe body is provided with an inner hole 3, a transition hole 4 and a guide hole 5. The guide hole 5 is located in the front straight section 11. One end of the transition hole 4 is connected to the guide hole 5, and the other end of the transition hole 4 is connected to the inner hole 3. In this embodiment, a handle 2 is provided at the tail of the probe body. One end of the transition hole 4 is smoothly connected with the guide hole 5, and the other end of the transition hole 4 is smoothly connected with the inner hole 3. The technical measures of the transition hole 4 and the smooth connection are conducive to the entry and exit of the puncture needle and the light source, and are co...

Embodiment 2

[0033] Referring to FIG. 4 , a puncture needle used in conjunction with the posterior urethral probe described in Embodiment 1 includes a needle bar 7 on which a needle front 9 is provided, and a needle bar 9 is provided between the needle bar 7 and the needle front 9 . There is a transition bar 8 and one end of the transition bar 8 is connected with the needle bar 7, and the other end of the transition bar 8 is connected with the needle front part 9. The above-mentioned needle front part 9 has flexibility, and the head is sharp to form a needle point. Tail end is connected with handle 10, with reference to Fig. 4 and Fig. 5, is provided with screw thread 12 and is connected with the nut 15 that is used to control puncture depth at needle bar 7, is provided with scale plane on needle bar 7, is provided with on scale plane Scale 16 showing the puncture depth.

[0034] Usually, the puncture needle is a flexible needle. When in use, it can bend along the inner hole in the posteri...

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Abstract

The present invention is one rear urethral probe and one puncture needle for treating urethral stricture and urethral atresia. The rear urethral probe includes one sheath, one arc segment and one front straight segment connected successively, and has smooth hole. The puncture needle fitting the said rear urethral probe includes one needle with threads in the front part. During cryoprobe treatment of urethral stricture and urethral atresia, the puncture needle is first used in searching the weakest part, and the rear urethral probe is then used in puncturing. The present invention can facilitate the operation of treating urethral stricture and urethral atresia.

Description

technical field [0001] The invention relates to a surgical instrument for treating urethral stricture or atresia, in particular to a posterior urethral probe and a puncture needle. Background technique [0002] Urethral stricture (urethral stricture) and atresia (urethral atresia) is a common disease in urology, more common in men, the main cause of trauma. The treatment of complicated urethral stricture and atresia, especially posterior urethral stricture or atresia, is difficult, and there is no ideal endoluminal treatment at present. [0003] In the past, open surgery was often used for treatment. The main surgical methods include: urethral anastomosis through the pubic and perineal approach, urethral insertion, arc guide needle anastomosis, and straight needle anastomosis, and a variety of special instruments have been developed successively. However, the trauma of open surgery is large, the surgical effect is different, and the incidence of postoperative urethral stric...

Claims

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Application Information

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IPC IPC(8): A61B17/94A61B1/00A61B1/06A61B17/34
Inventor 吴宏飞杨杰吴兆凯米沙江俊华立新宋宁宏冯宁翰张杰秀
Owner JIANGSU PROVINCE HOSPITAL
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