CN215874568U

CN215874568U - Nephroscope capable of being operated by single hand

Info

Publication number: CN215874568U
Application number: CN202120834991.9U
Authority: CN
Inventors: 李明勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-02-22
Anticipated expiration: 2031-04-22
Also published as: JP3237462U

Abstract

The utility model provides a nephroscope capable of being operated by one hand, which belongs to the field of medical instruments and comprises a scope body, wherein the scope body is provided with a handheld part, the handheld part is provided with a control groove for controlling the advance and retreat of a laser optical fiber, the handheld part is also obliquely provided with an ocular, and the ocular is inclined towards the direction of the control groove so as to realize the operation by one hand; the tail part of the handheld part is detachably provided with a water stop cap for preventing water leakage, and the control groove is formed in the water stop cap. The utility model can realize the simultaneous control of the advancing and retreating of the laser lithotripsy optical fiber and the endoscope body by one hand, and the other hand can regulate and control the operation sheath at any time to achieve the effect of continuously chasing and beating the calculus, thereby obviously improving the lithotripsy efficiency, shortening the learning curve and reducing the mistaken impact of the laser optical fiber on the renal mucosa.

Description

Nephroscope capable of being operated by single hand

Technical Field

The utility model belongs to the field of medical instruments, and particularly relates to a nephroscope capable of being operated by one hand.

Background

Percutaneous nephrolithotomy (PCNL) is a first-choice treatment means for clinical nephrolithiasis and ureteral upper segment calculus, a hard percutaneous nephroscope is a medical instrument used in percutaneous nephroscope surgery, the hard percutaneous nephroscope is punctured through the skin of the back to reach a renal pelvis and a renal pelvis, a channel from the skin to the kidney is established at the waist through puncture and expansion, an operation sheath is placed in the channel, and the hard percutaneous nephroscope reaches the target renal pelvis or renal pelvis through the operation sheath; and (3) inserting a lithotripsy tool such as a laser fiber or an ultrasonic probe and the like into the nephroscope operation channel to smash and take out the calculus. The percutaneous nephroscope operation has small wound and quick recovery, so the percutaneous nephroscope operation is widely applied.

When the existing PCNL operation is carried out, a patient needs to lie down in a general anesthesia state, so that the operation time is not too long, the lithotripsy efficiency is improved in a short time, and the operation technology of a doctor is particularly important besides improving the working efficiency of lithotripsy tools such as laser and ultrasound.

In the process of implementing the utility model, the inventor finds that the prior art has at least the following problems:

in the existing percutaneous nephroscope lithotomy, doctors operate with two hands, namely one hand holds the nephroscope and the other hand holds lithotripsy tools such as a laser fiber, and the left hand and the right hand are respectively controlled by the right hemisphere and the left hemisphere of the brain; therefore, in the process of crushing stones, the problems of running-in and coordination exist in the operation of two hands, particularly in the fine crushing operation in the kidney, the learning curve is greatly prolonged, and the operation is not beneficial to the way of a beginner; therefore, the inventor proposes a method for lithotripsy by one hand, namely, the nephroscope and the optical fiber are controlled by one hand simultaneously, so that the accurate positioning of the nephroscope body and the optical fiber can be realized, but the existing hard percutaneous nephroscope cannot meet the requirements of realizing the free advance and retreat of the laser lithotripsy optical fiber and the control of components such as the nephroscope body by one hand.

SUMMERY OF THE UTILITY MODEL

Based on the background problems, the utility model aims to provide a nephroscope capable of being operated by one hand, which can realize the one-hand operation of freely advancing and retreating the laser lithotripsy optical fiber and controlling the eyepiece, and the other hand can regulate and control the operation sheath at any time to achieve the effect of continuously chasing and beating the calculus, thereby obviously improving the lithotripsy efficiency, shortening the learning curve and reducing the mistaken hit of the laser optical fiber on the renal mucosa.

In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

but nephroscope of one-hand operation, including the mirror body, the mirror body is equipped with handheld portion, handheld portion is equipped with the control recess that is used for controlling laser fiber advance and retreat, handheld portion still inclines to be equipped with the eyepiece, the eyepiece inclines to control recess direction to realize one-hand operation.

In one embodiment, the control groove is an arc-shaped groove which is matched with the radian of the thumb abdomen.

In one embodiment, the tail part of the hand-held part is detachably provided with a water stop cap for preventing water leakage, and the control groove is formed in the water stop cap.

In one embodiment, the eyepiece is angled 30-40 ° from the central axis of the handpiece.

In one embodiment, the lens body is provided with an embedding part, the embedding part is composed of a hard section and a soft section, the soft section is positioned at the front end of the embedding part, and the end part of the soft section is provided with a lens.

Preferably, the length of the soft segment is 4-7 cm.

Preferably, the soft segment can be bent in one direction, and the bending amplitude is 0-70 degrees.

More preferably, the hand-held part is provided with an adjusting knob for controlling the unidirectional bending of the soft segment, and the adjusting knob is connected with the soft segment.

In one embodiment, the adjustment knob is connected to the soft section by a wire rope.

In one embodiment, the hand-held part is provided with a light source input end, and the hand-held part is also provided with a water inlet and outlet valve.

Compared with the prior art, the utility model has the following effects:

1. the control groove is formed in the handheld portion of the endoscope body, the thumb can control the advancing and retreating of the optical fiber through the control groove, the eyepiece is obliquely arranged on the handheld portion, and the eyepiece inclines towards the control groove, so that the eyepiece is in the control range of one-hand operation, namely the laser lithotripsy endoscope can achieve simultaneous control of the advancing and retreating of the laser lithotripsy optical fiber and the endoscope body by one hand, and at the moment, the other hand can regulate and control the operation sheath at any time to achieve the effect of continuously chasing stones, so that the lithotripsy efficiency is remarkably improved, the learning curve is shortened, and the mistaken hit of the laser optical fiber on the renal mucosa is reduced.

2. The control groove is an arc-shaped groove and is matched with the radian of the thumb web, so that the movement of the optical fiber is conveniently controlled.

3. The included angle between the ocular and the axis of the handheld part is 30-40 degrees, so that the ocular is further close to the control groove, and the ocular is convenient to operate by one hand.

4. The implantation part of the utility model comprises a soft section which can be bent in a single direction, and the soft section can be bent as required to remove stones of each renal calyx to the maximum extent.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is a schematic structural view of a nephroscope capable of being operated by one hand according to an embodiment of the present invention;

FIG. 2 is a front view of another aspect of a single-handed nephroscope in accordance with an embodiment of the present invention;

fig. 3 is a schematic view of the operating state of the nephroscope capable of being operated by one hand according to the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. indicate the orientations or positional relationships indicated based on the use states of the products, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.

In order to overcome the defect that the conventional nephroscope cannot meet the requirement of one-hand operation and cannot realize observation and stone removal of each renal calyx through a single channel, the embodiment of the utility model provides the nephroscope capable of being operated by one hand, which comprises a scope body, as shown in fig. 1 and 2, wherein the scope body is provided with a handheld part 1 and an embedding part 2, the handheld part 1 is held by an operator, and the embedding part 2 enters the kidney through a percutaneous renal channel sheath.

In the present embodiment, taking the orientation shown in fig. 1 and fig. 2 as an example, the left side of the handheld portion 1 is provided with a light source input end 101 for illuminating a lens disposed at a soft segment 202 described later.

The right side of light source input 101 is equipped with eyepiece 102, can observe internal calculus through eyepiece 102, and is specific, eyepiece 102 inclines to the right side and sets up, promptly to the right-hand member slope of handheld portion 1, and eyepiece 102's inclination specifically is 35 (promptly eyepiece 102 and the contained angle of handheld portion 1 axis) for eyepiece 102 is close to the control recess 103 that later describe, and the operator of being convenient for one-hand control.

It should be noted that the angle of inclination of the eyepiece 102 is not limited to 35 ° in the present application, and the angle of inclination may be adjusted between 30 ° and 40 °.

The right side of the handheld part 1 is provided with a control groove 103, the control groove 103 is communicated with the operation channel of the handheld part 1, the advance and retreat of the optical fiber in the operation channel can be controlled through the control groove 103, and the finger abdomen control of the thumb can be specifically realized.

Specifically, the control groove 103 of this embodiment is an arc-shaped groove, which matches with the radian of the thumb web to facilitate the operation, but the control groove 103 is not limited to the arc-shaped structure of this embodiment.

In this embodiment, as shown in fig. 1, the handheld portion 1 is further provided with a water inlet and outlet valve 104, the water inlet and outlet valve 104 is arranged on the right side of the eyepiece 102, the right side of the water inlet and outlet valve 104 is further provided with a water stop cap 105, the water stop cap 105 is detachably connected to the handheld portion 1, the water stop cap 105 contains a gasket made of a silica gel material, a small hole in the center of the gasket is convenient for insertion of operation tools such as a laser fiber, and water leakage at the tail end of the endoscope body is prevented.

In this embodiment, the control groove 103 is formed on the water stop cap 105 and is located at the right side of the water stop cap 105, so that the operation is convenient.

Because various calyces in the kidney and the renal pelvis are distributed in a spoke-like structure in the anatomical structure, the single channel of the existing hard percutaneous nephroscope is often difficult to reach the adjacent Y-shaped calyx structure, and the multiple channels can obviously increase the risk of renal hemorrhage; although the existing soft nephroscope can reach each renal calyx structure in the kidney through the bending lens, the good operability and direction sense of the nephroscope are greatly reduced due to the soft total length of the nephroscope body; is not beneficial to improving the stone breaking and taking efficiency.

For this purpose, the insertion part 2 of the present embodiment is composed of a hard segment 201 and a soft segment 202, the soft segment 202 is located at the front end of the insertion part 2, taking fig. 1 and 2 as an example, the soft segment 202 is arranged at the left end of the hard segment 201, and the end of the soft segment 202 is provided with a lens to irradiate the calculus in the body.

As shown in FIG. 1, in this embodiment, the soft segment 202 is arranged to be able to bend in one direction, and the adjusting knob 106 for controlling the soft segment 202 to bend in one direction is arranged on the hand-held portion 1, so that the soft segment 202 can be bent by rotating the adjusting knob 106 during the operation, thereby removing the stones from the renal calyces to the maximum extent. In this embodiment, the soft segment 202 is bent in one direction instead of in multiple directions, which is beneficial to increase the advantages of the soft lens and simultaneously retain the advantages of the direction sense and the controllability of the hard lens.

Specifically, the adjusting knob 106 is arranged on the side wall of the handheld portion 1 and located at the bottom end of the eyepiece 102, and the adjusting knob 106 is connected with the soft section 202 through a steel wire rope. It should be noted that, it is prior art to adjust the angle of the soft lens through the cooperation of the knob and the steel wire rope, and therefore, this embodiment is not described in detail again.

In the present embodiment, the length of the soft segment 202 is 5cm, but the soft segment is not limited thereto and can be adjusted between 4 and 7 cm.

The working principle of the utility model is as follows: as shown in fig. 3, the insertion part 2 is inserted into the kidney of the patient through the operation sheath of the percutaneous kidney channel, the doctor can know the calculus condition in the kidney of the patient through the observation eyepiece 102, the laser fiber is inserted from the operation channel at the right end of the handheld part 1, and then the endoscope body and the laser fiber are simultaneously controlled by one hand to carry out calculus breaking, specifically: in the stone breaking process, the thumb is placed at the control groove 103 to control the forward and backward movement of the optical fiber, the index finger and the middle finger are held at the eyepiece 102, the ring finger and the little finger are supported below the adjusting knob 106, after the stone is broken and removed, the bending angle of the soft section 202 is adjusted through the adjusting knob 106 to comprehensively check and search for residual stones near each renal calyx, and the residual stones are broken.

It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.

Claims

1. A nephroscope capable of being operated by one hand comprises a scope body, the scope body is provided with a hand-held part, and is characterized in that,

the handheld portion is provided with a control groove used for controlling the laser optical fiber to advance and retreat, the handheld portion is further obliquely provided with an ocular, and the ocular inclines towards the direction of the control groove to realize one-hand operation.

2. The nephroscope capable of being operated by one hand as claimed in claim 1, wherein the control groove is an arc-shaped groove, and the arc of the arc-shaped groove is matched with the arc of the thumb abdomen.

3. The nephroscope capable of being operated by one hand according to claim 1, wherein a water stop cap for preventing water leakage is detachably provided at the tail of the hand-held portion, and the control groove is provided on the water stop cap.

4. The nephroscope according to claim 1, characterized in that the angle of the eyepiece with the central axis of the hand-held portion is 30-40 °.

5. The nephroscope capable of being operated by one hand according to claim 1, characterized in that the scope body is provided with an insertion portion, the insertion portion is composed of a hard segment and a soft segment, the soft segment is located at the front end of the insertion portion, and the end of the soft segment is provided with a lens.

6. The nephroscope according to claim 5, characterized in that the length of the soft segment is 4-7 cm.

7. The nephroscope according to claim 5, characterized in that said soft segment is bendable in one direction, the bending amplitude of said soft segment being 0-70 °.

8. The nephroscope according to claim 7, characterized in that the hand-held portion is provided with an adjustment knob for controlling unidirectional bending of the soft segment, said adjustment knob being connected to the soft segment.

9. The nephroscope according to claim 8 wherein said adjustment knob is connected to said soft segment by a wire cable.

10. The nephroscope according to claim 1, characterized in that the hand-held part is provided with a light source input and the hand-held part is further provided with a water inlet and outlet valve.