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Posterior urethral probe and puncture needle

A probe and urethra 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. sexual effect

Inactive Publication Date: 2009-05-27
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] refer to figure 1 , figure 2 , a posterior urethral probe for treating urethral stricture or atresia, comprising a probe body, characterized in that the probe body is composed of a sheath body 1, an arc section 6 and a front straight section 11 connected in sequence, and an internal Hole 3, transition hole 4 and guide hole 5, guide hole 5 is located in the front straight section 11, one end of transition hole 4 is connected with guide hole 5, and the other end of transition hole 4 is connected with 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 conducive to further ensuring the safety of the puncture need...

Embodiment 2

[0033] refer to Figure 4 , a puncture needle used in conjunction with the posterior urethral probe described in Embodiment 1, comprising a needle bar 7, a needle front 9 is provided on the needle bar 7, and a transition bar is provided between the needle bar 7 and the needle front 9 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 9, the above-mentioned needle front 9 has flexibility, the head is sharp, and forms a needle point, and the tail of the needle bar 7 is connected with Handle 10, refer to Figure 4 and Figure 5 The needle bar 7 is provided with a screw thread 12 and is connected with a nut 15 for controlling the puncture depth. The needle bar 7 is provided with a scale plane, and the scale plane is provided with a scale 16 for displaying the puncture depth.

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

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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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Patent Type & Authority Patents(China)
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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