阅读说明：本技术 一种防感染型泌尿外科用结石抓取器 (Prevent infecting type calculus grabber for uropoiesis surgery ) 是由 吴琦 李朋 周小庆 于 2021-08-20 设计创作，主要内容包括：本发明涉及泌尿外科手术技术领域,具体是涉及一种防感染型泌尿外科用结石抓取器,包括外部管道；夹取件；夹取件的一端连接有调节组件,外部管道的一端连接有控制组件,调节组件包括有导杆、中心杆和连杆,中心杆轴向滑动设置在导杆内部,中心杆设置在导杆内部的一端通过连杆与夹取件连接；控制组件包括第一圆柱套筒和第二圆柱套筒。本申请通过使用外部管道进行位置固定,通过使用夹取件伸入尿道中进行结石夹取,通过使用调节组件控制夹取件的工作状态,通过使用控制组件控制夹取将的进出移动方式,保证了医生使用抓取器时可以方便轻松的控制夹取件的夹取工作,减小了夹取件在尿道中移动可能造成的损伤,使病人有着比平时相比较好的手术体验。(The invention relates to the technical field of urological operations, in particular to an infection-preventing calculus grabber for urological operations, which comprises an external pipeline; clamping and taking the workpiece; one end of the clamping piece is connected with an adjusting assembly, one end of the external pipeline is connected with a control assembly, the adjusting assembly comprises a guide rod, a central rod and a connecting rod, the central rod is axially arranged in the guide rod in a sliding mode, and one end, arranged in the guide rod, of the central rod is connected with the clamping piece through the connecting rod; the control assembly includes a first cylindrical sleeve and a second cylindrical sleeve. This application carries out the rigidity through using the outside pipeline, carry out the calculus clamp through using the clamp to get the piece and stretch into the urethra and get, through using the operating condition that adjusting part control clamp got the piece, get the business turn over moving means that will through using control part control clamp, the work of getting of the control clamp that can make things convenient for relax when having guaranteed that the doctor uses the grabber, the damage that the piece removal probably caused in the urethra has been reduced to the clamp, make patient have than better operation experience at ordinary times.)

1. An infection-preventing calculus grabber for urology surgery comprises,

an outer pipe (1);

the clamping piece (2), the clamping piece (2) is arranged inside the outer pipeline (1) in a sliding manner;

it is characterized in that one end of the clamping piece (2) is connected with an adjusting component (3), one end of the external pipeline (1) is connected with a control component (4), the adjusting component (3) is movably arranged in the external pipeline (1) and one end far away from the clamping piece (2) is arranged outside the external pipeline (1),

the adjusting assembly (3) comprises a guide rod (3 a), a central rod (3 b) and a connecting rod (3 c), one end of the clamping piece (2) is connected with one end of the guide rod (3 a) in a radial sliding mode, the central rod (3 b) is axially arranged in the guide rod (3 a) in a sliding mode, the central rod (3 b) is coaxially arranged with the guide rod (3 a), one end of the central rod (3 b) is arranged in the guide rod (3 a) in a sliding mode, the other end of the central rod extends to the outside of the guide rod (3 a) in the direction far away from the clamping piece (2), and one end, arranged in the guide rod (3 a), of the central rod (3 b) is connected with the clamping piece (2) through the connecting rod (3 c);

control assembly (4) include first cylinder sleeve (4 a) and second cylinder sleeve (4 b), first cylinder sleeve (4 a) and outside pipeline (1) fixed connection, second cylinder sleeve (4 b) and outside pipeline (1) sliding connection, be provided with chucking spare (4 b 4) on second cylinder sleeve (4 b), set up the recess of cooperation chucking spare (4 b 4) work on first cylinder sleeve (4 a), second cylinder sleeve (4 b) and guide arm (3 a) threaded connection.

2. The stone grabber for the infection-preventing urinary surgery is characterized in that four circles of grooves which are orderly arranged are formed in the side wall of an external pipeline (1), six fixing grooves (1 a) are formed in each circle of grooves, the six fixing grooves (1 a) orderly encircle the side wall of the external pipeline (1), the four circles of fixing grooves (1 a) are all arranged on a half section, close to a urethra, of the external pipeline (1), and a ball (1 b) is movably arranged in each fixing groove (1 a).

3. The stone grabber for the infection-preventing urinary surgery is characterized in that a group of inner walls of each fixing groove (1 a) are provided with fixing chutes (1 c) distributed in a mirror image mode, two ends of each ball (1 b) extend out of protrusions to be arranged in the two fixing chutes (1 c) to enable the balls (1 b) to be arranged in the two fixing chutes (1 c) in a sliding mode, a first spring (1 d) is arranged between each ball (1 b) and the outer pipeline (1), one end of each first spring (1 d) is in contact with each ball (1 b), and the other end of each first spring (1 d) is fixedly connected with the outer pipeline (1).

4. The stone grabber for the infection-preventing urinary surgery, as claimed in claim 1, wherein the clamping member (2) is provided with three fixing plates (2 a), one side of each fixing plate (2 a) is provided with an arc-shaped surface, the three fixing plates (2 a) are arranged close to each other and are arranged in a cylindrical shape, one ends of the three fixing plates (2 a) close to the guide rod (3 a) are provided with sliding strips (2 a 1), one ends of the three sliding strips (2 a 1) are all coupled with connecting rods (3 c), the other ends of the connecting rods (3 c) are coupled with one ends of the central rod (3 b) close to the clamping member (2), the center of the guide rod (3 a) is provided with a circular through hole (3 a 2), the central rod (3 b) is arranged in the circular through hole (3 a 2) in a sliding manner, one end of the guide rod (3 a) close to the clamping member (2) is provided with an irregular groove (3 a 1), and the three connecting rods (3 c) are all arranged in the irregular groove (3 a 1), the sliding bars (2 a 1) of the three fixing plates (2 a) are arranged in the irregular groove (3 a 1) in a sliding way.

5. The urinary stone grabber for the infection-preventing type surgery as claimed in claim 4, wherein one end of the fixing plate (2 a) far away from the guide rod (3 a) is provided with an inclined surface, the inclined surface is arranged outwards, and a plurality of semicircular protrusions (2 a 2) are arranged in an orderly manner on the surface of the fixing plate (2 a) close to each other.

6. The calculus grabber for the infection-preventing urinary surgery is characterized in that a disc blocking piece (3 b 1) is arranged on the central rod (3 b), a cylindrical cavity which is in sliding fit with the disc blocking piece (3 b 1) is formed in the guide rod (3 a), a second spring (3 d) is arranged in the cylindrical cavity, one end of the second spring (3 d) is fixedly connected with one end, close to the clamping piece (2), in the cylindrical cavity, and the other end of the second spring (3 d) is in contact with the disc blocking piece (3 b 1).

7. The urinary stone grabber for the infection-preventing type surgery department is characterized in that one end, far away from the clamping piece (2), of the central rod (3 b) is provided with a disc protrusion (3 b 2), a locking piece (3 e) is rotatably arranged on the disc protrusion (3 b 2), one surface, close to the guide rod (3 a), of the locking piece (3 e) is provided with two protrusions, one surface, close to the locking piece (3 e), of the guide rod (3 a) is provided with two first clamping grooves (3 a 4) matched with the protrusions to work, and the side wall of the locking piece (3 e) is provided with a circle of long protrusions distributed orderly.

8. The stone grabber for the infection-preventing urology surgery, according to claim 1, wherein one end of the external pipe (1) far away from the clamping piece (2) is fixedly connected with a first cylindrical sleeve (4 a), the inner diameter of the first cylindrical sleeve (4 a) is equal to the outer diameter of the external pipe (1), the inner wall of the first cylindrical sleeve (4 a) is provided with two second clamping grooves (4 a 1), the inner diameter of the second cylindrical sleeve (4 b) is equal to the inner diameter of the external pipe (1), one end of the second cylindrical sleeve (4 b) close to the first cylindrical sleeve (4 a) is provided with two clamping pieces (4 b 4), one end of the clamping piece (4 b 4) far away from the second cylindrical sleeve (4 b) is provided with a bulge working in cooperation with the second clamping groove (4 a 1), the inner wall of the second cylindrical sleeve is provided with an internal thread (4 b 1), the outer wall of the guide rod (3 a) is provided with an external thread (4 a 5) working in cooperation with the internal thread (4 b 1), one end of the guide rod (3 a) arranged outside the outer pipeline (1) is provided with a control handle (3 a 3).

9. The stone grabber for the infection-preventing urology surgery, according to claim 8, is characterized in that one end, close to the outer pipe (1), of the second cylindrical sleeve (4 b) is provided with four arc-shaped sliding strips (4 b 2) which are distributed in an annular mode, the outer wall of the outer pipe (1) is provided with a groove which is matched with the arc-shaped sliding strips (4 b 2) to work, and the tail ends of the four arc-shaped sliding strips (4 b 2) are fixedly connected with limiting rings (4 b 3).

10. The stone grabber for the infection-preventing urinary surgery is characterized in that two I-shaped grooves are formed in the second cylindrical sleeve (4 b), two clamping pieces (4 b 4) are slidably arranged in the two I-shaped grooves, pressing portions (4 b 5) are arranged on the clamping pieces (4 b 4), the pressing portions (4 b 5) extend outwards to the outside of the second cylindrical sleeve (4 b), two tension springs (4 b 6) are arranged in each I-shaped groove, the two tension springs (4 b 6) are respectively located on two sides of each pressing portion (4 b 5), one end of each tension spring (4 b 6) is fixedly connected with the clamping piece (4 b 4), and the other end of each tension spring (4 b 6) is fixedly connected with one side, close to the outside, of each I-shaped groove.

Technical Field

The invention relates to the technical field of urological operations, in particular to an infection-preventing calculus grabber for urological operations.

Background

Lithangiuria is one of the most common urological diseases, and lithangiuria is usually grabbed through a grabber, and a doctor makes a patient lie behind a sickbed, then stretches the grabber into the urethra of the patient to perform position preliminary fixing, and then controls the grabbing head to move to the deep part of the urethra to grab the stone.

But traditional grabber all utilizes the head of grabbing of front end to grab and gets the calculus, owing to grab the open structure that the head adopted many steel wires to make, make and grab the head after getting into the urethra, it causes the damage to patient's urethra very easily to grab the head, it is taking out from the urethra to grab the head simultaneously, the patient's urethra is also harmd very easily to the calculus, cause patient's urethra wound to take place the infection easily, thereby the doctor need spend certain cardiac power when the control is grabbed the head and is removed in the urethra and prevent to grab the head and remove too fast thereby bump for the disease bring the injury in the urethra.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an infection-preventing calculus grabber for the urology surgery.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

an infection-preventing calculus grabber for urology surgery comprises,

an external pipe;

the clamping piece is arranged inside the external pipeline in a sliding manner;

one end of the clamping piece is connected with an adjusting component, one end of the external pipeline is connected with a control component, the adjusting component is movably arranged in the external pipeline, and one end far away from the clamping piece is arranged outside the external pipeline,

the adjusting assembly comprises a guide rod, a central rod and a connecting rod, one end of the clamping piece is radially and slidably connected with one end of the guide rod, the central rod is axially and slidably arranged in the guide rod and coaxially arranged with the guide rod, one end of the central rod is arranged in the guide rod, the other end of the central rod extends to the outside of the guide rod in the direction far away from the clamping piece, and one end of the central rod arranged in the guide rod is connected with the clamping piece through the connecting rod;

the control assembly comprises a first cylindrical sleeve and a second cylindrical sleeve, the first cylindrical sleeve is fixedly connected with an external pipeline, the second cylindrical sleeve is connected with the external pipeline in a sliding mode, a clamping piece is arranged on the second cylindrical sleeve, a groove matched with the clamping piece to work is formed in the first cylindrical sleeve, and the second cylindrical sleeve is connected with the guide rod in a threaded mode.

Preferably, four rings of grooves which are orderly arranged are formed in the side wall of the external pipeline, six fixing grooves are formed in each ring of groove, the six fixing grooves are orderly arranged on the side wall of the external pipeline in a surrounding mode, the four rings of fixing grooves are all arranged on the half section, close to the urethra, of the external pipeline, and balls are movably arranged in each fixing groove.

Preferably, the fixed chutes distributed in a mirror image are formed in a group of inner walls of each fixed groove, the two ends of each ball extend out of the protrusions to be arranged in the two fixed chutes in a mode that the balls slide in the two fixed chutes, a first spring is arranged between each ball and the external pipeline, one end of each first spring is in contact with each ball, and the other end of each first spring is fixedly connected with the external pipeline.

Preferably, be provided with three fixed plate in the piece is got to the clamp, the one side of three fixed plate sets up to the arcwall face, three fixed plate is close to each other and is cylindricly setting, the one end that three fixed plate is close to the guide arm is provided with the sliding strip, the one end of three sliding strip all has the coupling to have the connecting rod, the other end coupling of connecting rod is close to the one end of getting the piece in well core rod, circular through-hole has been seted up at the guide arm center, well core rod slides and sets up in circular through-hole, the guide arm is close to the one end of getting the piece and has seted up irregular recess, three connecting rod all sets up in irregular recess, the sliding strip of three fixed plate all slides and sets up in irregular recess.

Preferably, one end, far away from the guide rod, of the fixing plate is arranged to be an inclined plane, the inclined direction of the inclined plane is outwards arranged, and a plurality of semicircular bulges which are orderly arranged are arranged on one face, close to each other, of the fixing plate.

Preferably, the central rod is provided with a disc separation blade, the guide rod is internally provided with a cylindrical cavity in sliding fit with the disc separation blade, a second spring is arranged in the cylindrical cavity, one end of the second spring is fixedly connected with one end of the cylindrical cavity, close to the clamping piece, and the other end of the second spring is in contact with the disc separation blade.

Preferably, the one end that a piece was got to the centre rod keeping away from clamp is provided with the disc arch, and the last rotatable retaining member that is provided with of disc arch, retaining member are provided with two buckles in the one side that is close to the guide arm, set up the first draw-in groove of two cooperation buckle works in the one side that the guide arm is close to the retaining member, are provided with the rectangular arch of the orderly distribution of round on the lateral wall of retaining member.

Preferably, the first cylinder sleeve of one end fixedly connected with that the piece was got to the clamp is kept away from to the outside pipeline, the telescopic internal diameter of first cylinder equals the external diameter of outside pipeline, two second draw-in grooves have been seted up on the telescopic inner wall of first cylinder, the telescopic internal diameter of second cylinder equals the internal diameter of outside pipeline, the second cylinder sleeve is close to one of first cylinder sleeve and serves and be provided with two chucking spare, the telescopic one end of second cylinder is kept away from to the chucking spare is provided with the arch of cooperation second draw-in groove work, be provided with the internal thread on the telescopic inner wall of second cylinder.

Preferably, one of the ends of the second cylindrical sleeve, which is close to the external pipeline, is provided with four arc-shaped sliding strips distributed in an annular manner, a groove matched with the arc-shaped sliding strips to work is formed in the outer wall of the external pipeline, and the tail ends of the four arc-shaped sliding strips are fixedly connected with limiting rings.

Preferably, two I-shaped grooves are formed in the second cylindrical sleeve, the two clamping pieces are arranged in the two I-shaped grooves in a sliding mode, the clamping pieces are provided with pressing portions, the pressing portions extend outwards to the outside of the second cylindrical sleeve, two tension springs are arranged in each I-shaped groove and are respectively located on two sides of the pressing portion, one ends of the tension springs are fixedly connected with the clamping pieces, and the other ends of the tension springs are fixedly connected with one sides, close to the outside, of the I-shaped grooves.

Compared with the prior art, the invention has the beneficial effects that:

1. this application carries out the rigidity through using the outside pipeline, carry out the calculus clamp through using the clamp to get the piece and stretch into the urethra and get, through using the operating condition that adjusting part control clamp got the piece, get the business turn over mobile mode that the clamp will through using control part control clamp, guaranteed from this that the doctor can make things convenient for the easy control clamp of getting when using the grabber to get the work of getting of clamp, reduced the clamp and got the damage that the piece removed probably to cause in the urethra, make patient have than better operation experience at ordinary times.

2. This application makes the outside pipeline when stuffing into the urethra through the mode that the outer wall activity of outside pipeline was provided with the ball, uses gliding ball to replace the mode of outside pipeline and urethra contact to reduce the frictional force that the urethra received, avoids appearing the damaged condition of urethra and appears.

3. This application makes the external pipe put into the urethra back through the mode that is provided with first spring between ball and external pipe, reduces the pressure that the ball brought for the urethra to make the removal of external pipe in the urethra can conveniently go on.

4. This application is got the work through three fixed plate that uses the diameter to be less than the outside pipeline and presss from both sides, thereby does not worry when having guaranteed that the calculus in the urethra can be got the clamp and do not contact with the inner wall of urethra and make the condition that the urethra damage appears appear.

5. This application sets up to the inclined plane through the one end of keeping away from the guide arm at the fixed plate for calculus in the urethra can be easier enter into between fixed, and the one side that is close to each other through the fixed plate sets up the mode of semicircular bulge and makes that the calculus that is snatched can be firmly fixed.

6. This application is through setting up the second spring in well core rod and guide arm, and the mode that sets up the disc separation blade on well core rod makes the automatic execution of the effect of clamping piece through the second spring press from both sides and get the action to do not need the long-time manual execution operation of doctor, thereby still avoid making the phenomenon appearance that the calculus drops because the shake that manual manipulation appears when reducing doctor's labour consumption.

7. This application is connected the retaining member through keeping away from the one end of getting the piece of clamp at well core rod, and the one end setting that is close to the retaining member at the guide arm makes need not doctor's operation alright be in the maximum diameter state in guaranteeing to get the piece of clamp entering urethra with the first grooved mode of retaining member cooperation work to guarantee to make the calculus in the urethra all accomodate into the working range who gets the piece.

8. This application makes thereby the piece of gripping can slowly be stable advance in the urethra through the screw-thread fit who uses second cylinder sleeve and guide arm to thereby avoided the doctor to exert oneself too hard and make the piece of gripping remove too fast in the urethra and make patient feel uncomfortable.

9. This application makes alright slide with control second cylinder sleeve after the doctor removes the fixed state of chucking spare and second draw-in groove through making second cylinder sleeve pass through chucking spare and first cylinder sleeve's second draw-in groove and keep fixed mode to guaranteed that the piece can be followed its quick income and taken out in the outside pipeline, reduced the time that the piece is located patient's urethra of getting.

10. This application makes the doctor can be quick remove first cylinder sleeve and the telescopic fixed state of second cylinder through the mode that sets up the extension spring between chucking spare and second cylinder sleeve to improve convenient operation nature, and guaranteed still that the entering of piece is got and two kinds of removal modes of leaving do not influence each other.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a front elevational view of the entirety of the present invention;

FIG. 3 is a top plan view of the present invention as a whole;

FIG. 4 is a cross-sectional view of the entirety of the present invention;

FIG. 5 is a perspective view of the outer conduit of the present invention;

FIG. 6 is an exploded view of the outer conduit of the present invention;

FIG. 7 is a perspective view of a clip of the present invention;

FIG. 8 is a front view of the clip of the present invention;

FIG. 9 is a first exploded view of the gripping member of the present invention;

FIG. 10 is a schematic view of the clamping member of the present invention

FIG. 11 is a top view of the adjustment assembly of the present invention;

FIG. 12 is a cross-sectional view of the adjustment assembly of the present invention;

FIG. 13 is a top view of the control assembly of the present invention;

FIG. 14 is a cross-sectional view of the control assembly of the present invention;

FIG. 15 is an exploded view of the control assembly of the present invention.

The reference numbers in the figures are:

1-an external pipe; 1 a-a fixing groove; 1 b-a ball; 1 c-a fixed chute; 1 d-a first spring;

2, clamping and taking the workpiece; 2 a-a fixed plate; 2a 1-sliding bar; 2a 2-semicircular projection;

3-a regulating component; 3 a-a guide bar; 3a 1-irregular grooves; 3a 2-circular through hole; 3a 3-control handle; 3a 4-first card slot; 3 b-a central rod; 4a 5-external threads; 3b 1-disk stop; 3b2 — disc projection; 3 c-a connecting rod; 3 d-a second spring; 3 e-a locking member; 3e 1-rubbing strip;

4-a control component; 4 a-a first cylindrical sleeve; 4a 1-second card slot; 4 b-a second cylindrical sleeve; 4b 1-internal threads; 4b 2-arc runner; 4b 3-stop ring; 4b 4-a clip; 4b 5-press part; 4b 6-tension spring.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In order to solve the technical problem of how to help doctors quickly and pollution-free take out stones from the urethra of patients, referring to fig. 1 to 15, an infection-preventing type stone grabber for urology surgery comprises,

an outer pipe 1;

the clamping piece 2 is arranged inside the outer pipeline 1 in a sliding mode;

one end of the clamping piece 2 is connected with an adjusting component 3, one end of the external pipeline 1 is connected with a control component 4, the adjusting component 3 is movably arranged in the external pipeline 1, one end far away from the clamping piece 2 is arranged outside the external pipeline 1,

the adjusting assembly 3 comprises a guide rod 3a, a central rod 3b and a connecting rod 3c, one end of the clamping piece 2 is connected with one end of the guide rod 3a in a radial sliding mode, the central rod 3b is axially arranged inside the guide rod 3a in a sliding mode, the central rod 3b is coaxially arranged with the guide rod 3a, one end of the central rod 3b is arranged inside the guide rod 3a, the other end of the central rod 3b extends to the outside of the guide rod 3a in the direction far away from the clamping piece 2, and one end, arranged inside the guide rod 3a, of the central rod 3b is connected with the clamping piece 2 through the connecting rod 3 c;

the control assembly 4 comprises a first cylindrical sleeve 4a and a second cylindrical sleeve 4b, the first cylindrical sleeve 4a is fixedly connected with the external pipeline 1, the second cylindrical sleeve 4b is slidably connected with the external pipeline 1, a clamping piece 4b4 is arranged on the second cylindrical sleeve 4b, a groove matched with the clamping piece 4b4 in work is formed in the first cylindrical sleeve 4a, and the second cylindrical sleeve 4b is in threaded connection with the guide rod 3 a.

Concretely, the staff packs the external pipeline 1 into the urethra to play a positioning role, the staff fixes the external pipeline 1 with one hand, the guide rod 3a is rotated with the other hand, because the guide rod 3a is in threaded connection with the second cylindrical sleeve 4b, the second cylindrical sleeve 4b is in fixed connection with the groove through the clamping piece 4b4 and the first cylindrical sleeve 4a, at the moment, the guide rod 3a slowly moves linearly to move to the deep part of the urethra, the clamping piece 2 connected with the guide rod 3a also moves along with the guide rod 3a, when stones in the urethra are located in the working end of the clamping piece 2, the control center rod 3b slides to drive the connecting rod 3c to move, so that the clamping piece 2 clamps stones in the urethra, at the moment, the fixed connection between the second cylindrical sleeve 4b and the first cylindrical sleeve 4a is released, and the staff slides the second cylindrical sleeve 4b to enable the threaded connection with the second cylindrical sleeve 4b The quick external pipe 1 that accomodates of guide arm 3a in, the staff takes external pipe 1 out from the urethra afterwards, thereby avoids waiting to press from both sides the removal of getting piece 2 and the long-time rest of external pipe 1 in the urethra when.

Further:

in order to solve the technical problem of reducing the friction force generated when the external conduit 1 moves in the urethra and avoiding the damage of the urethra caused by the movement of the external conduit 1, the following technical solutions are provided with reference to fig. 5 to 6: set up four rings of orderly arranged's recess on the lateral wall of outside pipeline 1, be provided with six fixed recess 1a in every ring of recess, six fixed recess 1a are orderly to encircle on the lateral wall of outside pipeline 1, and four rings of fixed recess 1a all set up on the half section that is close to the urethra on outside pipeline 1, all are provided with ball 1b in every fixed recess 1a movably.

Specifically, when the staff need pack in the urethra with outside pipeline 1 and fix, earlier scribble suitable lubricating oil on ball 1b that sets up the outer wall of outside pipeline 1, the staff grips one section that outside pipeline 1 was provided with ball 1b and packs in the urethra of disease afterwards, because the outer wall activity of outside pipeline 1 is provided with a plurality of ball 1b, when outside pipeline 1 removed to the depths of urethra, because the existence of ball 1b on outside pipeline 1, ball 1b will replace outside pipeline 1 and urethra contact when outside pipeline 1 removed, thereby frictional force between the urethra when having reduced outside pipeline 1 and removed, thereby avoid the urethra to appear because the damaged condition appears in the removal of outside pipeline 1.

Further:

in order to solve the technical problem that the external conduit 1 may prop open the urethra after entering the urethra, thereby causing the urethra to be damaged, the following technical solutions are provided with reference to fig. 5 to 6: offer the fixed chute 1c that the mirror image distributes on a set of inner wall of every fixed recess 1a, ball 1 b's both ends extend the arch and set up in two fixed chutes 1c and make ball 1b slide and set up in two fixed chutes 1c, are provided with first spring 1d between ball 1b and the outside pipeline 1, the one end and the ball 1b contact of first spring 1d, first spring 1 d's the other end and outside pipeline 1 fixed connection.

Specifically, when the staff manipulate outside pipeline 1 and fill in behind the urethra and to stretching out the removal, thereby reduced frictional force because set up ball 1b on the outer wall of outside pipeline 1 and replace 1 outer wall of outside pipeline and urethra contact, because be provided with first spring 1d in ball 1b and the outside pipeline 1 the reason, when ball 1b and the urethra contact and take place to roll, ball 1b will move to the direction that is close to outside pipeline 1, thereby reduced the pressure of ball 1b to the urethra, still avoid the urethra of disease to appear damaged condition when making the disease can not feel difficult to feel.

Further:

in order to solve the technical problem of how to grasp a stone located in the urethra, the following technical solutions are provided as shown in fig. 7 to 10: be provided with three fixed plate 2a in the piece 2 is got to the clamp, the one side of three fixed plate 2a sets up to the arcwall face, three fixed plate 2a is close to each other and is cylindricly setting, three fixed plate 2a is provided with slide bar 2a1 near the one end of guide arm 3a, three slide bar 2a 1's one end all has connect the connecting rod 3c, the other end hub joint of connecting rod 3c is close to the one end of getting 2 in central rod 3b, circular through-hole 3a2 has been seted up at the guide arm 3a center, central rod 3b slides and sets up in circular through-hole 3a2, irregular recess 3a1 has been seted up to the one end that guide arm 3a is close to piece 2 is got to the clamp, three connecting rod 3c all sets up in irregular recess 3a1, the slide bar 2a1 of three fixed plate 2a all slides and sets up in irregular recess 3a 1.

Specifically, after the clamping member 2 inserted into the urethra is moved to a proper position, the operator controls the central rod 3b arranged in the guide rod 3a to axially move after stones in the urethra are all located at the working position of the clamping member 2, and since the central rod 3b is connected to one end of the clamping member 2 close to the central rod 3b, the other ends of the three connecting rods 3c are connected to the three fixing plates 2a, and the sliding strips 2a1 of the three fixing plates 2a are slidably connected to the irregular grooves 3a1, the three fixing plates 2a will move close to each other along with the axial sliding of the central rod 3b, so that stones located in the three fixing plates 2a will be fixed by the three fixing plates 2a close to each other, and stones located at the working position of the clamping member 2 will be clamped.

Further:

in order to solve the technical problem that stones in the urethra can be firmly grabbed, the following technical solutions are provided as shown in fig. 7 to 10: one end of the fixing plate 2a far away from the guide rod 3a is set to be an inclined plane, the inclined direction of the inclined plane is outwards arranged, and a plurality of semicircular protrusions 2a2 which are orderly arranged are arranged on one surface, close to each other, of the fixing plate 2 a.

Specifically, when the clamping member 2 moves to the deep part of the urethra, because the end of the fixing plate 2a far away from the guide rod 3a is set to be an inclined plane, the calculus in the urethra moves to the inside of the clamping member 2 along the inclined plane while moving along with the fixing plate 2a, after the clamping member 2 moves to a proper position, the worker controls the central rod 3b to move, so that the three fixing plates 2a are close to each other to fix the calculus, and because the semicircular bulge 2a2 arranged on the fixing plate 2a exists, the calculus is firmly fixed, so that the calculus cannot easily move and fall off.

Further:

in order to solve the technical problem that the calculi can be automatically fixed by the clamping piece 2, the following technical scheme is provided as shown in fig. 9 to 12: the central rod 3b is provided with a disc separation blade 3b1, the guide rod 3a is internally provided with a cylindrical cavity which is in sliding fit with the disc separation blade 3b1, a second spring 3d is arranged in the cylindrical cavity, one end of the second spring 3d is fixedly connected with one end of the cylindrical cavity, which is close to the clamping piece 2, and the other end of the second spring 3d is in contact with the disc separation blade 3b 1.

It is specific, when the piece 2 enters into the urethra along with outside pipeline 1 at the clamp, staff this moment control well core rod 3b to the direction removal of being close to the piece 2 of clamp, make second spring 3d be in compression state, three fixed plate 2a in the piece 2 of clamp keeps away from each other, staff release well core rod 3b after the piece 2 of clamp removes suitable working position, thereby second spring 3d will resume the original state make well core rod 3b to keeping away from to press from the direction removal of getting will, thereby along with three fixed plate 2a in well core rod 3 b's the removal clamp 2 will be close to each other and get the calculus clamp in the urethra voluntarily, thereby realized that need not the long-time control of staff and keep the clamping state of getting of 2.

Further:

in order to solve the technical problem of how to make the gripping and gripping member 2 have the maximum diameter when entering the urethra, the following technical solutions are provided, as shown in fig. 9 to 12: one end of the central rod 3b far away from the clamping piece 2 is provided with a disc protrusion 3b2, a locking piece 3e is rotatably arranged on the disc protrusion 3b2, two protrusions are arranged on one face, close to the guide rod 3a, of the locking piece 3e, a first clamping groove 3a4 for matching with the protrusions to work is formed in one face, close to the locking piece 3e, of the guide rod 3a, and a circle of long-strip protrusions distributed orderly are arranged on the side wall of the locking piece 3 e.

Specifically, before the piece 2 of getting into the urethra along with outside pipeline 1, the staff imbeds the buckle on the retaining member 3e into first draw-in groove 3a4, thereby well core rod 3b will be along with retaining member 3e and the laminating of guide arm 3a to the direction removal that is close to piece 2 of getting into this moment, thereby make three fixed plate 2a in the piece 2 of getting into keeping away from each other and make the piece 2 of getting into the state of maximum diameter, guaranteed that the piece 2 of getting into in the urethra can be abundant accomodate the calculus in the working position, and because the existence of retaining member 3e need not the staff and provides the fixed state of getting 2 of extra labour. When the clamping piece 2 is required to clamp, the worker rotates the locking piece 3e to release the fixed state of the protrusion and the first groove, and the second spring 3d works to enable the central rod 3b to move in the direction away from the clamping piece 2 so that the clamping piece 2 can clamp.

Further:

in order to solve the technical problem that the clamping member 2 can slowly and stably enter the urethra, the following technical scheme is provided as shown in fig. 11 to 15: one end fixedly connected with first cylinder sleeve 4a that piece 2 was got to clamp is kept away from to outside pipeline 1, the internal diameter of first cylinder sleeve 4a equals the external diameter of outside pipeline 1, two second draw-in grooves 4a1 have been seted up on first cylinder sleeve 4 a's the inner wall, second cylinder sleeve 4 b's internal diameter equals outside pipeline 1's internal diameter, second cylinder sleeve 4b is close to one of first cylinder sleeve 4a and serves and be provided with two chucking spare 4b4, the one end that second cylinder sleeve 4b was kept away from to chucking spare 4b4 is provided with the arch of cooperation second draw-in groove 4a1 work, be provided with internal thread 4b1 on the inner wall of second cylinder sleeve, be provided with the external screw thread 4a5 of cooperation internal thread 4b1 work on the outer wall of guide arm 3a, guide arm 3a sets up the outside one end of outside pipeline 1 and is provided with control handle 3a 3.

Specifically, because first cylinder sleeve 4a fixed connection is kept away from the one end of gripping piece 2 in outside pipeline 1, second cylinder sleeve 4b is thereby fixed through chucking spare 4b4 and the cooperation of second draw-in groove 4a1, the staff makes guide arm 3a rotate through control handle 3a3 this moment, because outside pipeline 1 is fixed to staff's another hand, second cylinder sleeve 4b connected with guide arm 3a through the screw thread is also fixed this moment, guide arm 3a will drive the slowly stable deep removal to the urethra of gripping piece 2, thereby it makes the gripping piece 2 remove too fast in the urethra and make the disease feel uncomfortable to have avoided the staff to use hard excessively hard when using.

Further:

in order to solve the technical problem that the clamping element 2 can rapidly and stably leave the urethra, the following technical scheme is provided as shown in fig. 11 to 15: one end of the second cylindrical sleeve 4b close to the external pipeline 1 is provided with four arc-shaped sliding strips 4b2 distributed in an annular mode, the outer wall of the external pipeline 1 is provided with a groove matched with the arc-shaped sliding strips 4b2 to work, and the tail ends of the four arc-shaped sliding strips 4b2 are fixedly connected with limiting rings 4b 3.

Specifically, after the clamping member 2 clamps and holds stones in the urethra, the worker removes the fixed connection between the second cylindrical sleeve 4b and the second cylindrical sleeve 4b, the worker grasps the second cylindrical sleeve 4b to move the second cylindrical sleeve 4b towards the direction away from the external pipeline 1, due to the fact that the second cylindrical sleeve 4b is in threaded connection with the guide rod 3a, the guide rod 3a drives the clamping member 2 to move along with the second cylindrical sleeve 4b towards the direction away from the urethra, so that the clamping member 2 can be quickly and stably placed inside the external pipeline 1, when the limiting circular ring 4b3 on the second cylindrical sleeve 4b is in contact with the external pipeline 1, the clamping member 2 can move to the bottom end of the external pipeline 1, and at the moment, the worker takes the external pipeline 1 out of the urethra.

Further:

in order to solve the technical problem that the fixing rod does not interfere with the urethra entrance and exit, referring to fig. 13 to 15, the following technical solutions are provided: two I-shaped grooves are formed in the second cylindrical sleeve 4b, the two clamping pieces 4b4 are arranged in the two I-shaped grooves in a sliding mode, pressing portions 4b5 are arranged on the clamping pieces 4b4, the pressing portions 4b5 extend outwards to the outside of the second cylindrical sleeve 4b, two tension springs 4b6 are arranged in each I-shaped groove, two tension springs 4b6 are located on two sides of each pressing portion 4b5 respectively, one end of each tension spring 4b6 is fixedly connected with the corresponding clamping piece 4b4, and the other end of each tension spring 4b6 is fixedly connected with one side, close to the outside, of each I-shaped groove.

Specifically, after the clamping piece 2 finishes the work of getting of stone in the inside of urethra, the staff presses two chucking spare 4b4 that set up on second cylinder sleeve 4b, thereby make two chucking spare 4b4 contact with the fixed connection relation of first cylinder sleeve 4a, thereby the staff grasps second cylinder sleeve 4b and makes second cylinder sleeve 4b remove to the direction of keeping away from outside pipeline 1 thereby make with second cylinder sleeve 4b threaded connection's guide arm 3a will drive clamping piece 2 and remove to the direction of leaving the urethra this moment, thereby guaranteed that the slow stability of clamping piece 2 gets into and two kinds of removal that leave fast do not influence each other.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.