Negative pressure adjusting device connected with ureter sheath

A technology of adjusting device and ureter, applied in the field of medical devices, can solve the problems of affecting development, high incidence of urinary-induced infection, and high pressure of renal collecting system, and achieve the effects of removing stones, shortening operation time, and improving clarity

Active Publication Date: 2015-03-11
周均洪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But even so, for kidney stones no larger than 2cm, it is still easy to have high pressure in the renal collecting system with this surgical method, resulting in a high incidence of urinary infection, which affects the development of this surgical method

Method used

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  • Negative pressure adjusting device connected with ureter sheath
  • Negative pressure adjusting device connected with ureter sheath
  • Negative pressure adjusting device connected with ureter sheath

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Experimental program
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Effect test

Embodiment Construction

[0018] refer to figure 1 , figure 2 , the negative pressure regulating device of the present invention includes a sealed connection head 9 connected to the end of the ureteral sheath 7, the inside of the sealed connection head 9 is hollow to form a cavity 5, and a connection port 1 communicating with the ureteral sheath 7 is opened on it, connected to the negative pressure suction The negative pressure inlet 2 of the device 6, the mirror body inlet 3 for the penetration of the ureteroscope 8, and the air inlet 41 installed with the air intake regulating valve 4, the mirror body inlet 3 is provided with a sealing cover, and the sealing cover is provided with There is an elastic sealing hole 33 sealingly engaged with the outer wall of the tubular portion 81 of the ureteroscope 8 .

[0019] As a preferred embodiment of the present invention, refer to image 3 The sealing cover includes an elastic thin glue 31 and a pressing cover 32, the elastic sealing hole 33 is located on t...

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PUM

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Abstract

The invention discloses a negative pressure adjusting device connected with a ureter sheath. The negative pressure adjusting device comprises a sealing connector connected with the tail end of the ureter sheath; the interior of the sealing connector is hollow to form a cavity; a connecting opening communicated with the ureter sheath, a negative pressure connecting-in opening connected with a negative pressure suction device, a ureteroscope body connecting-in opening for a ureteroscope to penetrate and an air inlet provided with an air inlet adjusting valve are formed in the sealing connector; the negative pressure in the cavity is adjusted through the air inlet adjusting valve by changing the size of an air flow channel between the cavity and the atmosphere; a sealing cover is arranged at the position of the ureteroscope body connecting-in opening; and an elastic sealing hole in sealing fit with the tubular outer wall of the ureteroscope is formed in the sealing cover. By means of the negative pressure adjusting device, liquid injected into a kidney collecting system through the ureteroscope can be rapidly sucked out; the pressure of the kidney collecting system is effectively controlled; injuries of the high pressure of the kidney collecting system to patients are avoided; meanwhile, calculus powder and disintegrated slag generated in an operation can be rapidly sucked out; the operation view definition is improved; the operation efficiency is higher; the operation time is shorter; and the operation safety performance is greatly improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a negative pressure regulating device connected with a ureteral sheath. Background technique [0002] With the improvement of living standards, people's daily diet structure is also changing, and the number of patients with upper urinary tract stones is increasing year by year, especially those with kidney stones. At present, the mainstream surgical treatment methods include lithotripsy through natural channels (i.e. urethra, bladder, ureter) as the surgical path and percutaneous nephrostomy and other unnatural channels. In recent years, the medical field has gradually advocated the use of natural passages (ie, urethra, bladder, ureter) as the surgical approach for kidney stone surgery. [0003] When performing nephrolithiasis surgery through the natural channel, a ureteric sheath should be placed as the surgical channel through the natural channel, so that the ureteroscope can quickly enter ...

Claims

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Application Information

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IPC IPC(8): A61B18/26A61M1/00
CPCA61B18/26
Inventor 周均洪
Owner 周均洪
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