CN209916130U - Upper urinary tract tumor resection device - Google Patents

Abstract

The utility model discloses an upper urinary tract tumour resection device has solved the diagnosis and the excision of current upper urinary tract tumour and has all been invasive operation, brings the problem of economy and psychological burden for the patient. The utility model discloses an insertion portion of handle portion and handle portion lower extreme, insertion portion includes insulating sheath pipe, sword silk, seal wire, ureteroscope and cover stone basket, insulating sheath pipe can insert in the ureteroscope, set up first passageway and second passageway on the insulating sheath pipe, first passageway is used for inserting seal wire and cover stone basket, the second passageway is used for inserting the sword silk, second passageway department still sets up the electrode connector, the electrode accessible the electrode connector with the sword silk is connected, handle portion includes the handle and is located the slider on the handle, the slider is used for controlling the sword silk and removes. The utility model has the advantages of small wound and capability of relieving upper urinary tract obstruction.

Description

Upper urinary tract tumor resection device

Technical Field

The utility model relates to an upper urinary tract tumour excision technical field, concretely relates to upper urinary tract tumour excision device.

Background

The upper urinary tract tumor refers to tumor occurring in renal pelvis or ureter, and the commonly used diagnosis method comprises imaging examination, urine cast-off cytology examination and ureteroscope biopsy, wherein the latter two belong to pathological diagnosis and are the gold standard for diagnosing tumor. However, the positive rate of urine drop cytology examination is low, only 20% -30%, ureteroscopy biopsy is invasive, and for patients, more pain needs to be borne, and the economic burden is increased.

If the diagnosis is tumor (mainly urinary epithelial cancer and mostly high-risk type), the full-length resection of the nephroureter and the cystotomy are standard surgical treatment schemes. However, the surgery is more traumatic and presents a higher surgical risk for some patients who are not suitable for the surgery. For example, elderly patients with limited life expectancy, more complications, and poor cardiopulmonary function cannot tolerate such major surgery, and for example, patients with isolated kidneys need dialysis or even kidney transplantation after resection of the affected side of the kidney. In addition, due to the narrow space in the upper urinary tract cavity (the inner diameter of the ureter is about 0.3-0.5cm), the traditional resecting ring cannot enter the cavity, i.e. the upper urinary tract tumor cannot be resected like the bladder tumor. Therefore, it is necessary to design a new upper urinary tract tumor removal device to overcome the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the existing diagnosis and resection of the upper urinary tract tumor are invasive operations, which bring economic and psychological burdens to patients.

The utility model provides a solve above-mentioned problem's an upper urinary tract tumour resection device.

The utility model discloses a following technical scheme realizes:

the utility model provides an upper urinary tract tumour resection device, includes the insertion portion of handle portion and handle portion lower extreme, the insertion portion includes insulating sheath pipe, sword silk, seal wire, ureteroscope and cover stone basket, insulating sheath pipe can insert in the ureteroscope, set up first passageway and second passageway on the insulating sheath pipe, first passageway is used for inserting seal wire and cover stone basket, the second passageway is used for inserting the sword silk, second passageway department still sets up the electrode connector, the electrode accessible the electrode connector with the sword silk is connected, handle portion includes the handle and is located the slider on the handle, the slider is used for controlling the sword silk and removes.

The design principle of the utility model is that: when the disposable electric knife is used in combination with a ureteroscope, a guide wire is put into the ureteroscope through a urethra, the guide wire is sent into the ureteroscope through a ureteroscope-ureteroscope opening, the ureteroscope enters the ureteroscope along the guide wire to find a tumor and exits the ureteroscope, an electrode is connected through an electrode connecting port of a second channel, a knife wire is sent into the urethra along the second channel, the ureteroscope is sent into the ureteroscope and reaches the tumor, the knife wire is sent into the tumor under direct vision, after the tumor reaches a target position, the slider is controlled to move, the tumor is resected and can stop bleeding in the resection process, the guide wire exits after the tumor is cut off and the bleeding is fully stopped, a stone-covered basket is put into the first channel, and tumor tissues are taken out.

The utility model discloses preferred upper urinary tract tumour resection device, the end of inserting of insulating sheath pipe is toper circular arc structure, has so both increased the success rate of intubate in the operation, has reduced the stimulation to the upper urinary tract again.

The utility model discloses preferred upper urinary tract tumour resection device, the diameter of the anterior segment of insulating sheath pipe reduces gradually, and it is little to insert the end diameter like this, at the convenient location of in-process of adjusting the direction.

The utility model discloses preferred upper urinary tract tumour resection device, be provided with the scale on the handle, like this when removing the slider and impel the sword silk, can the accurate operation, prevent excessively to impel.

The utility model discloses preferred upper urinary tract tumour resection device, first passageway and second passageway are located the homonymy, and the sword silk gets into one side that the end is located the operator like this, convenient subsequent leading-in operation.

The utility model discloses preferred upper urinary tract tumour resection device, the material of insulating sheath pipe is the PTFE material, has super high insulating nature and ultralow coefficient of friction.

The utility model discloses preferred upper urinary tract tumour resection device, the surface of seal wire adopts dark green spiral stripe in turn, and the seal wire is visual strong under the ureteroscope like this, convenient location.

The utility model discloses preferred upper urinary tract tumour resection device, the dabber of seal wire adopts high-elastic nickel titanium alloy material, can prevent that the seal wire from producing the kink at the insertion process.

The utility model discloses preferred upper urinary tract tumour resection device, the leading of seal wire is structure as an organic whole, and the risk that the reducible head of leading drops like this.

The utility model discloses following beneficial effect has:

1. the utility model discloses a mode that disposable electrotome and ureteroscope combined carries out the tumour excision to constrictive upper urinary tract, reaches and to excise the tumour, removes the upper urinary tract and blocks, can reduce the purpose of wound again.

2. The utility model discloses a dark green spiral stripe in turn is adopted on seal wire surface, and the seal wire is visual strong at ureteroscope like this, convenient location.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the utility model a-a.

Fig. 3 is a schematic view of the structure of the guide wire of the present invention.

Fig. 4 is a schematic structural view of the utility model when cutting tumor.

Reference numbers and corresponding part names in the drawings:

1-insulating sheath tube, 2-knife wire, 3-guide wire, 30-guide head, 31-sleeve, 32-mandrel, 4-ureteroscope, 6-first channel, 7-second channel, 8-electrode connecting port, 9-sliding block, 10-handle, 11-thumb ring, 12-tumor and 13-ureter.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

The utility model discloses in, the cover stone basket is current structure, not shown in the drawing.

In the present invention, the scale is not shown in the drawings.

Example 1

As shown in fig. 1-4, an upper urinary tract tumor resection device comprises a handle part and an insertion part at the lower end of the handle part, wherein the insertion part comprises an insulating sheath tube 1, a knife wire 2, a guide wire 3, a ureteroscope 4 and a stone-covering basket, the insulating sheath tube 1 can be inserted into the ureteroscope 4, a first channel 6 and a second channel 7 are arranged on the insulating sheath tube 1, the first channel 6 is used for inserting the guide wire 3 and the stone-covering basket, the second channel 7 is used for inserting the knife wire 2, an electrode connecting port 8 is further arranged at the second channel 7, an electrode can be connected with the knife wire 2 through the electrode connecting port 8, the handle part comprises a handle 10 and a slide block 9 positioned on the handle 10, and the slide block 9 is used for controlling the movement of the knife wire 2.

When the disposable electric knife is used in combination with the ureteroscope 4, a guide wire 3 is fed into the ureter 13 through a ureteroscope 4-ureter 13 port after the ureteroscope 4 is placed through the urethra, the ureteroscope 4 enters the ureter 13 along the guide wire 3 to find a tumor 12 and exits from the ureteroscope 4, an electrode is connected through an electrode connecting port 8 of a second channel 7, a knife wire 2 is fed into the urethra along the second channel 7, the ureteroscope 4 is fed into the ureter 13 and reaches the tumor 12, the knife wire 2 is fed under direct vision, after the target position is reached, the seen tumor 12 is excised and can stop bleeding in the excision process by controlling the sliding block 9 to move, the tumor 12 is cut and fully stopped bleeding, the guide wire 3 exits, a stone covering basket is placed through the first channel 6, and the tissue of the tumor 12 is taken out.

The insertion end of the insulating sheath tube 1 is of a conical circular arc structure, so that the success rate of intubation in the operation is increased, and the stimulation to the upper urinary tract is reduced.

The diameter of the front section of the insulating sheath tube 1 is gradually reduced, so that the diameter of the insertion end is small, and the positioning is convenient in the direction adjusting process.

The handle 10 is provided with scales, so that when the sliding block 9 is moved to push the cutter wire 2, the operation can be accurately performed, and excessive pushing is prevented.

The first channel 6 and the second channel 7 are positioned on the same side, so that the inlet end of the cutter wire 2 is positioned on one side of an operator, and subsequent leading-in operation is facilitated.

The insulating sheath tube 1 is made of PTFE material and has ultrahigh insulating property and ultralow friction coefficient.

The top end of the handle 10 is provided with a thumb ring 11, so that the slider 9 can be operated conveniently.

Example 2

As shown in fig. 3, this embodiment is different from embodiment 1 in that the guide wire 3 includes a guide head 30, a sleeve 31 and a mandrel 32, and black-green alternating helical stripes are disposed on the sleeve 31, so that the guide wire 3 has strong visibility under the endoureteroscope 4 and is convenient to locate.

The mandrel 32 of the guide wire 3 is made of high-elasticity nickel-titanium alloy material, so that the guide wire 3 can be prevented from being twisted in the insertion process.

The guide head 30 of the guide wire 3 is of an integral structure, so that the risk of falling off of the guide head 30 can be reduced.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (9)

1. An upper urinary tract tumor resection device, which comprises a handle part and an insertion part at the lower end of the handle part, and is characterized in that, the insertion part comprises an insulating sheath tube (1), a knife wire (2), a guide wire (3), a ureteroscope (4) and a stone-covered basket, the insulating sheath tube (1) can be inserted into the ureteroscope (4), a first channel (6) and a second channel (7) are arranged on the insulating sheath tube (1), the first channel (6) is used for inserting a guide wire (3) and a stone-covering basket, the second channel (7) is used for inserting the cutter wire (2), an electrode connecting port (8) is further arranged at the second channel (7), the electrode can be connected with the cutter wire (2) through the electrode connecting port (8), the handle part comprises a handle (10) and a sliding block (9) positioned on the handle (10), and the sliding block (9) is used for controlling the movement of the cutter wire (2).

2. The upper urinary tract tumor resection device of claim 1, wherein the insertion end of the insulating sheath (1) is a conical circular arc structure.

3. An upper urinary tract tumor resection device according to claim 1 or 2, characterized in that the diameter of the anterior segment of the insulating sheath (1) is gradually reduced.

4. A device according to claim 1 or 2, wherein the handle (10) is provided with graduations.

5. An upper urinary tract tumour resection device according to claim 1 or 2, characterised in that the first channel (6) and the second channel (7) are located on the same side.

6. The upper urinary tract tumor resection device according to claim 1 or 2, wherein the insulating sheath (1) is made of PTFE material.

7. A device according to claim 1 or 2, wherein the surface of the guide wire (3) is provided with black and green alternating spiral stripes.

8. The upper urinary tract tumor removal device according to claim 1 or 2, characterized in that the mandrel of the guide wire (3) is made of high-elasticity nickel-titanium alloy material.

9. An upper urinary tract tumor resection device according to claim 1 or 2, characterized in that the guide head (30) of the guide wire (3) is of a one-piece construction.

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