CN109984717A - Combined type ureterorenoscope - Google Patents

Abstract

The invention relates to a ureteroscope, in particular to a combined ureteroscope, comprising an outer sheath into which an expansion sleeve core can be inserted, the expansion sleeve core is provided with an operation channel along the axial direction, and the expansion sleeve core is arranged along the axial direction There is a viewing hole for installing an endoscope. The invention adopts the mode of cooperation between the outer sheath and the expansion sleeve, and can perform the upper sheath operation of the outer sheath in a visible state, so as to establish and expand the operation channel; For stone crushing and clearing in the surgical channel, only one nephroscope is needed for the entire expansion and operation process, and all of them are carried out in a visible state. Not only is the operation cost low, but the operation is safe and reliable.

Description

Combined ureteroscope

technical field

The invention relates to a ureteroscope, in particular to a combined ureteroscope.

Background technique

Ureteroscopy is a medical device used to diagnose and treat lesions of the renal pelvis and ureter. It enters the ureter through the urethra and bladder to complete inspection and surgical operations. The existing uretero-renoscope is composed of an optical imaging illumination system, an integral mirror body containing water injection and operation channels, and its disadvantages are:

1. Surgical instruments, water injection and suction are carried out in the same channel, which is not conducive to the operation of surgical instruments, and stone crushing and stone cleaning cannot be performed simultaneously;

2. Poor drainage during surgery, high renal pelvis pressure, prone to sepsis and renal subcapsular hematoma;

3. The surgical field of vision is not clear, and the local temperature is high during holmium laser lithotripsy, which is easy to cause ureteral stenosis.

SUMMARY OF THE INVENTION

In view of the above-mentioned technical problems, the present invention provides a combined uretero-renoscope that can expand the surgical channel and perform surgical operations.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a combined ureteroscope includes an outer sheath into which an expansion sleeve core can be inserted, the expansion sleeve core is provided with an operation channel along the axial direction, and the expansion sleeve core is provided with an operation channel. A visual hole for installing an endoscope is opened along the axial direction.

Preferably, a suction channel is provided in the expansion sleeve core along the axial direction.

Preferably, the guide wire or surgical instrument is operated through the operating channel.

Preferably, the expansion sleeve core is provided with a water injection channel along the axial direction.

Preferably, the front end of the expansion sleeve extends out of the outer sheath, and the front end of the expansion sleeve is tapered.

Preferably, the front end of the expansion core can be bent.

Preferably, an inner sheath can be inserted into the outer sheath, and a miniature nephroscope can be inserted into the instrument channel formed by the inner sheath of the inner sheath.

Preferably, an annular cavity is formed between the inner sheath cavity and the miniature nephroscope, and the annular cavity is communicated with a water injection joint disposed on the inner sheath.

Preferably, a gap is left between the outer sheath and the inner sheath, and a suction tube is provided on the outer sheath, and the suction tube communicates with the gap.

Preferably, a suction device is provided on the outer sheath, and the suction device is connected with the suction tube.

It can be seen from the above technical solutions that the present invention adopts the mode of cooperation between the outer sheath and the expansion sleeve, and can perform the sheathing operation of the outer sheath in a visible state to establish and expand the surgical channel; and then use the outer sheath, the inner sheath and the micro The nephroscope cooperates to perform stone crushing and clearing through the surgical channel. Only one nephroscope is needed for the entire expansion and operation process, and it is performed in a visible state. Not only is the operation cost low, but the operation is safe and reliable.

Description of drawings

FIG. 1 is a schematic view of the structure of the expansion sleeve in the present invention.

FIG. 2 is a schematic diagram of the cross-sectional structure of FIG. 1 .

Figure 3 is a schematic structural diagram of the outer sheath of the present invention.

Detailed ways

The present invention will be described in detail below with reference to FIG. 1 , FIG. 2 and FIG. 3 . The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

The present invention provides a combined uretero-renoscope, comprising an outer sheath 2, into which an expansion sleeve 1 can be inserted, and an operation channel 12 is opened in the expansion sleeve along the axial direction, and the operation channel can accommodate a miniature kidney A scope or a guide wire, etc., the expansion sleeve core is provided with a visual hole 13 along the axial direction where an endoscope can be installed. During the implementation, the guide wire can be passed through the operation channel, and the guide wire can be guided in a visible state through the endoscope and the visual hole, which provides a clear vision for the expansion of the sleeve core to complete the external The sheathing operation of the sheath avoids the damage of the ureter caused by blind insertion. In addition, the operation channel is built in the miniature nephroscope, and the illumination system of the miniature nephroscope can also ensure the upper sheath operation of the outer sheath in a visible state.

In the implementation process, the expansion sleeve is also provided with a suction channel 14 along the axial direction, thereby forming a three-channel visible expansion sleeve, which can attract waste liquid, slag, etc. It is safe and effective to operate the guide wire under the conditions. At the same time, the sleeve core is placed under visible conditions, which makes the operation more convenient and saves the operation time. The expansion sleeve core is also provided with a water injection channel 15 along the axial direction, which can maintain a clear view of the upper sheath. Therefore, a four-channel visible expansion sleeve with independent water injection channels is formed, and the operation is more convenient and time-saving. The front end of the expansion sleeve protrudes from the outer sheath, and the front end of the expansion sleeve is tapered, which is convenient for the guiding and expansion of the expansion sleeve; and the front end of the expansion sleeve can be bent, which can be made of flexible materials, which further ensures the expansion of the sleeve core. For safe and convenient expansion.

The operation channel of the expansion sleeve of the present invention can directly use surgical instruments such as a micro-nephroscope 3. Since the micro-nephroscope is provided with an optical imaging lighting system, the tapered front end of the expansion sleeve can be directly guided and expanded, and optical imaging can be carried out directly. The lighting system can provide sufficient lighting to guide the dilatation core accurately, so as to ensure the expansion of the core in a clear view and avoid damage to the ureter. During the implementation, when the expansion sleeve is continuously expanded, the outer sheath also extends into the ureter, and after the expansion sleeve is taken out, a surgical channel is established to facilitate stone removal. The invention adopts the outer sheath and the specially designed expansion sleeve to ensure the accurate establishment and expansion of the operation channel, greatly saves the operation time and improves the operation operability.

The outer sheath of the present invention is provided with an inner sheath 6, and the inner cavity of the inner sheath forms an instrument channel, and a miniature nephroscope 3 can be inserted into the instrument channel. When the expansion sleeve is taken out from the outer sheath to establish a surgical channel, the inner sheath is inserted, and the instrument channel formed by the inner sheath is built into a micro-nephroscope for surgical operation to achieve the purpose of lithotripsy and stone clearing. In the implementation process, an annular cavity 61 is formed between the inner sheath cavity and the micro-nephroscope, that is, there is a radial distance between the inner sheath cavity and the micro-nephroscope, and the annular cavity is connected to the water injection provided on the inner sheath. The joint 4 is connected, so that water is injected into the annular cavity through the water injection joint, which can improve the clarity of the surgical field, reduce the heat generated by the holmium laser, reduce thermal damage and reduce the occurrence of surgical complications. There is a gap 5 between the outer sheath and the inner sheath, and a suction tube 7 is arranged on the outer sheath. The suction tube is communicated with the gap, so that the crushed stone, waste residue, waste blood, etc. are removed from the suction tube through the gap. Aspirate to avoid affecting the surgical operation of the lithotripsy nephroscope. In the implementation process, a suction device 8 is provided on the outer sheath, and the suction device is connected with the suction tube, so that the suction force of the suction tube can be adjusted by the suction device. Suction devices such as negative pressure suction instruments, cooperation of airbags and air compressors, air extractors, etc.

As can be seen from the above, the present invention realizes the upper sheath operation of the outer sheath through the outer sheath and the expansion sleeve core to establish the operation channel, and realizes the purpose of lithotripsy and stone clearing through the outer sheath, the inner sheath and the miniature nephroscope; There is an operating channel on the core, and the micro-nephroscope can be directly used for illumination in the channel, which is safer and more effective than the prior art using a guide wire to guide the expansion core to place the outer sheath; Compared with the sheath and lithotripsy nephrolithotomy, a standard mirror is saved, which greatly saves the cost.

The above-mentioned embodiments are only used to illustrate the present invention, but not to limit the present invention. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions should also belong to the scope of the present invention.

Claims (10)

1. Combined ureteroscope, comprising an outer sheath, is characterized in that: the expansion sleeve core can be inserted in the outer sheath, the expansion sleeve core is provided with an operation channel along the axial direction, and the expansion sleeve core is provided along the axial direction with installable The viewing hole of the endoscope. 2 . The combined uretero-renoscope according to claim 1 , wherein a suction channel is arranged in the expansion sleeve along the axial direction. 3 . 3 . The combined uretero-renoscope according to claim 1 , wherein a guide wire or a surgical instrument is operated through the operation channel. 4 . 4 . The combined ureteroscope according to claim 1 , wherein a water injection channel is arranged in the expansion sleeve along the axial direction. 5 . 5 . The combined uretero-renoscope according to claim 1 , wherein the front end of the expansion sleeve protrudes from the outer sheath, and the front end of the expansion sleeve is tapered. 6 . 6 . The combined uretero-renoscope according to claim 5 , wherein the front end of the expansion sleeve can be bent. 7 . 7 . The combined ureteroscope according to claim 1 , wherein an inner sheath can be inserted into the outer sheath, and a miniature nephroscope can be inserted into the instrument channel formed by the inner cavity of the inner sheath. 8 . 8 . The combined ureteroscope according to claim 7 , wherein an annular cavity is formed between the inner sheath cavity and the miniature nephroscope, and the annular cavity is communicated with a water injection joint disposed on the inner sheath. 9 . 9 . The combined uretero-renoscope according to claim 7 , wherein a gap is left between the outer sheath and the inner sheath, a suction tube is provided on the outer sheath, and the suction tube communicates with the gap. 10 . 10 . The combined ureteroscope according to claim 9 , wherein a suction device is provided on the outer sheath, and the suction device is connected to the suction tube. 11 .