CN113082469B

CN113082469B - Ureter sacculus expansion pipe external member

Info

Publication number: CN113082469B
Application number: CN202110403329.2A
Authority: CN
Inventors: 刘巧清; 刘漉平; 谢正武
Original assignee: Shenzhen Tairuishi Medical Technology Co ltd
Current assignee: Shenzhen Tairuishi Medical Technology Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-12-13
Anticipated expiration: 2041-04-15
Also published as: CN113082469A

Abstract

The invention relates to the field of ureteral dilation equipment, and particularly discloses a ureteral balloon dilation catheter kit which comprises a body, a first nozzle and a second nozzle, a rotating tube, a tube body and a dilation head, wherein the dilation head comprises a connecting part connected with the rotating tube, a first bulge and a second bulge arranged on the connecting part, a tip arranged at one end of the second bulge, a first rotating connecting piece, a telescopic rod, a second rotating connecting piece, a dilation rod and a dilation balloon arranged between the first bulge and the second bulge.

Description

Ureter sacculus expansion pipe external member

Technical Field

The invention relates to the technical field of ureteral dilatation devices, in particular to a ureteral balloon dilatation catheter kit.

Background

The ureter is connected with the renal pelvis and the bladder at the lower part, and is a pair of slender pipelines which are in an oblate column shape, and the average pipe diameter is 0.5-0.7 cm. The adult ureter has a total length of 25-35 cm, is positioned behind the peritoneum, and vertically descends along the front of the inner side of the psoas major to enter the pelvis. The ureter has three strictures: one at the renal pelvis and ureter transition (ureter start), one at the entrance beyond the ossicle and the last one inside the wall of the bladder. These stenoses are sites where stones, blood clots, and necrotic tissue tend to reside. Ureterectasis generally has a good therapeutic effect for treating ureteral stenosis. The wall of the ureter is composed of three layers of tissues. The outermost fascia tissue, which surrounds the entire renal pelvis and ureter, contains abundant blood vessels and nerve fibers; the middle part is three layers of muscles, the inner layer and the outer layer are longitudinal muscles, and the middle layer is a ring muscle; the innermost is the mucosal layer, which is coherent with the renal pelvis and the bladder mucosa. The ureteral balloon dilatation catheter kit is used for transluminal dilatation of ureteral stenosis, but during the dilatation, the ureteral balloon dilatation catheter is difficult to advance due to the slender shape of the ureter, and the difficulty of operation of a doctor is increased particularly in the case that foreign objects such as stones, blood clots and necrotic tissues exist in the ureter.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a ureteral balloon dilatation catheter kit.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a ureteral sacculus expansion pipe external member, includes the body, set up first mouth of pipe and the second mouth of pipe on the body, rotate to be connected the rotating tube of the one end of body, with body coupling's body and with the expansion head that the rotating tube is connected, this internal be provided with the first passageway of first mouth of pipe intercommunication, the body sets up in the first passageway, this internal be provided with the second passageway of second mouth of pipe intercommunication, the expansion head include with connecting portion that the rotating tube is connected, set up and be in first arch and second arch on the connecting portion are in the most advanced of the bellied one end of second, first rotation connecting piece, telescopic link, second rotation connecting piece, expansion pole and setting are in expansion sacculus between first arch and the second arch, first rotation connecting piece sets up on the first arch, the one end of telescopic link with first rotation connecting piece is connected, the other end of telescopic link with the second rotation connecting piece is connected, the bellied lateral wall of second is provided with spacing portion, expansion pole activity sets up in the spacing portion, the one end of first rotation pole with the expansion pole with the arc connecting portion is connected to the expansion connecting portion, the expansion pole is provided with the curved connecting portion of arc connecting portion, expansion connecting portion is provided with the curved connecting portion of the expansion pole, expansion portion is provided with the curved connecting portion of the arc connecting portion.

Preferably, this internal first cavity that is provided with, the activity is provided with the movable block in the first cavity, the one end of movable block is connected with the driving tooth, the one end of rotating tube is provided with the gear, be provided with on the gear with the teeth of a cogwheel that the driving tooth is connected.

Preferably, one side of the movable block is provided with a connecting column, the connecting column is movably arranged on the side wall of the body, one end of the connecting column is provided with a key, a first spring is arranged on the connecting column, one end of the first spring is connected with the key, and the other end of the first spring is connected with the outer wall of the body.

Preferably, one end of the movable block is elastically provided with a movable rod, and the transmission gear is arranged at one end of the movable rod.

Preferably, a second cavity is arranged in the movable block, the movable rod is movably arranged in the second cavity, a second spring is arranged on the movable rod, one end of the second spring is connected with the outer wall of the movable block, and the other end of the second spring is connected with the transmission teeth.

Preferably, the number of the gear teeth is two, the key connected with one of the gear teeth is arranged on one side of the body, and the key connected with the other gear teeth is arranged on the other side of the body.

Preferably, a connecting rod is arranged at one end of the rotating pipe, and one end, far away from the rotating pipe, of the connecting rod is connected with the expansion head.

Preferably, the number of the connecting rods is multiple, and the connecting rods are uniformly arranged along the circumferential direction of the rotating pipe.

Preferably, the connecting rod is of a hollow structure, the pipe body is arranged in the connecting rod, and one end of the pipe body is connected with the expansion head in a rotating and sealing mode.

Preferably, the body is 8-shaped, and a second through hole is formed in the body.

The beneficial effects of the invention are:

1. according to the invention, gas or liquid can be injected into the first channel through the first pipe orifice, the gas or liquid can enter the connecting part through the pipe body, the gas or liquid is filled into the expansion airbag through the first through hole on the connecting part, the second rotating part is jacked up to the center far away from the connecting part after the expansion airbag expands in volume, the telescopic rod stretches at the moment, the expansion rod is pulled simultaneously, the expansion rod and the telescopic rod are arranged outside the expansion airbag, the expansion volume of the expansion airbag can be limited, and the expansion airbag is prevented from being expanded too much. The displacement priming effect to the second rotation piece is better after the expansion gasbag expands, and the corresponding efficiency of expansion of the second rotation piece is higher.

2. If the device meets the condition of foreign matters such as stones, blood clots and necrotic tissues, part of the arc-shaped parts can be inserted between the inner wall of the ureter and the foreign matters more conveniently, after the expansion air bag is inflated or liquid is filled, the second rotating part initially expands the ureter close to the foreign matters, and meanwhile, the expansion rod rotates, so that the end parts of the arc-shaped parts can move to the center close to the connecting part, the end parts of the arc-shaped parts clamp or break the foreign matters, and then the part of the foreign matters are cleaned, the device is prevented from being taken out and then being taken out by being inserted with tools additionally, and the operation is more convenient and efficient.

3. According to the invention, the movable block is moved, the movable block can drive the transmission gear to move, the transmission gear is connected with the gear, the rotating tube is further rotated, and finally the expansion head connected with the rotating tube is rotated, so that the expansion head can be screwed in the process of extending into the ureter, the resistance of the expansion head entering is reduced, and the expansion head can be more conveniently extended.

4. According to the invention, the transmission teeth are elastically arranged at one end of the movable block, the rotating pipe drives the expansion head to rotate unidirectionally after the transmission teeth move unidirectionally, and after the transmission teeth move reversely, friction force is generated between the inner wall of the ureter and the expansion head due to the extrusion of the inner wall of the ureter, and the friction force is greater than the elastic force of the second spring, so that the second spring is continuously compressed, and the expansion head cannot rotate due to the reverse direction of the transmission teeth. Therefore, after the key is repeatedly pressed, the movable block can move back and forth, but the expansion head rotates in a single direction, the expansion head can conveniently extend into the ureter, and the ureter expansion head is suitable for straight and curved channels.

Drawings

Fig. 1 is a perspective view of a ureteral balloon dilatation catheter kit according to the present invention;

fig. 2 is a perspective view of a ureteral balloon dilation catheter kit shown in fig. 1 from another perspective;

fig. 3 is an elevation view of a ureteral balloon dilation catheter kit shown in fig. 1 from another perspective;

FIG. 4 isbase:Sub>A cross-sectional view taken at A-A of FIG. 3;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 4 at C;

FIG. 7 is a perspective view of the dilating head of the ureteral balloon dilation catheter kit of FIG. 1;

FIG. 8 is a perspective view of the dilating head of FIG. 7 from another perspective;

FIG. 9 is a perspective view of the dilating head of FIG. 7 after dilation of the dilation balloon;

fig. 10 is a schematic view showing the connection of a gear and a movable block in the ureteral balloon dilatation catheter kit shown in fig. 1;

FIG. 11 is a front view of FIG. 10;

FIG. 12 is a top view of FIG. 10;

FIG. 13 is a cross-sectional view taken at D-D of FIG. 12;

fig. 14 is a partial enlarged view at E in fig. 2.

In the figure: 1 first mouth of pipe, 2 second mouth of pipe, 3 the body, 31 first cavity, 32 first passageway, 33 second passageway, 34 second through-hole, 4 buttons, 5 rotating tube, 6 connecting rods, 7 body, 8 expansion heads, 81 connecting portions, 811 the connecting hole, 812 first through-holes, 82 first arch, 83 second arch, 831 spacing portion, 84 pointed end, 85 first rotating connection spare, 86 telescopic link, 87 second rotating connection spare, 88 expansion pole, 881 arc portion, 9 gears, 91 teeth of a cogwheel, 10 driving teeth, 11 shift bars, 12 second springs, 13 movable block, 131 second cavity, 14 connecting columns, 15 first springs, 16 expansion sacculus.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-14, a ureteral balloon dilatation catheter kit comprises a body 3, a first nozzle 1 and a second nozzle 2 arranged on the body 3, a rotating tube 5 rotatably connected to one end of the body 3, a tube body 7 connected to the body 3, and an dilatation head 8 connected to the rotating tube 5, specifically, a connecting rod 6 is arranged at one end of the rotating tube 5, one end of the connecting rod 6 far away from the rotating tube 5 is connected to the dilatation head 8, a first channel 32 communicated with the first nozzle 1 is arranged in the body 3, the tube body 7 is arranged in the first channel 32, a second channel 33 communicated with the second nozzle 2 is arranged in the body 3, the expansion head 8 includes a connection portion 81 connected with the rotation tube 5, a first protrusion 82 and a second protrusion 83 provided on the connection portion 81, a tip 84 provided at one end of the second protrusion 83, a first rotation connection member 85, an expansion link 86, a second rotation connection member 87, an expansion rod 88, and an expansion balloon 16 provided between the first protrusion 82 and the second protrusion 83, the first rotation connection member 85 is provided on the first protrusion 82, one end of the expansion link 86 is connected with the first rotation connection member 85, the other end of the expansion link 86 is connected with the second rotation connection member 87, a side wall of the second protrusion 83 is provided with a limiting portion 831, the expansion rod 88 is movably provided in the limiting portion 831, one end of the expansion rod 88 is connected with the second rotation connection member 87, the other end of the expansion rod 88 is provided with an arc portion 881, the arc portion 881 is bent toward a center away from the connection portion 81, one end of the connection portion 81 is provided with a connection hole 811, the side wall of the connecting portion 81 is provided with a first through hole 812 communicating the connecting hole 811 and the inside of the inflatable balloon 16.

Can inject into gas or liquid into first passageway 32 through first mouth of pipe 1, can make gas or liquid get into the inside of connecting portion 81 through body 7, utilize first through-hole 812 on connecting portion 81 to fill gas or liquid in expanding gasbag 16, expand gasbag 16 volume inflation back with second rotation piece 87 to keeping away from the center department jack-up of connecting portion 81, telescopic link 86 is tensile this moment, pull expansion rod 88 simultaneously, set up expansion rod 88 and telescopic link 86 outside expanding gasbag 16, can restrict the expansion volume of expanding gasbag 16, prevent that expanding gasbag 16 from expanding too big. Further, compared with the conventional case of only expanding the airbag, the expanding airbag 16 of the present invention has a better effect of driving the displacement of the second rotating member 87 after being inflated, and the corresponding expansion efficiency of the second rotating member 87 is higher. It can be understood that, under the state that the expansion air bag 16 is not expanded, matching with the lubricating liquid, the tip 84 and the arc portion 881 at the end of the expansion rod 88 can advance more conveniently in the ureter in a slender shape, if encountering the situation of foreign matters such as stones, blood clots and necrotic tissues, a part of the arc portion 881 can be inserted between the inner wall of the ureter and the foreign matters more conveniently, after inflating or inflating the expansion air bag 16, the second rotating member 87 primarily expands the ureter close to the foreign matters, and simultaneously the expansion rod 88 rotates, so that the end of the arc portion 881 can move to the center close to the connecting portion 81, the foreign matters are clamped or broken by the end of the arc portion 881, and then the foreign matters are cleaned, and the foreign matters are prevented from being taken out by additionally probing with tools, and the operation is more convenient and efficient.

The second channel 33 can be filled with liquid through the second orifice 2 for cleaning or administering medication into the ureter.

In the present embodiment, the first rotor 85 and the second rotor 87 are micro universal joints. The arc-shaped portion 881 and the tip 84 are made of medical silica gel.

In another embodiment, a first cavity 31 is arranged in the body 3, a movable block 13 is movably arranged in the first cavity 31, one end of the movable block 13 is connected with a transmission gear 10, one end of the rotating tube 5 is provided with a gear 9, and the gear 9 is provided with a gear tooth 91 connected with the transmission gear 10. Remove movable block 13, movable block 13 can drive driving gear 10 and remove, through being connected between driving gear 10 and the gear 9, and then make rotating tube 5 rotate, finally make the expansion head 8 of being connected with rotating tube 5 rotate, can stretch into the in-process precession of ureter at expansion head 8 like this, reduce the resistance that expansion head 8 got into, the expansion head 8 of being convenient for more stretch into.

Further, one side of movable block 13 is provided with spliced pole 14, spliced pole 14 activity sets up the lateral wall of body 3, the one end of spliced pole 14 is provided with button 4, be provided with first spring 15 on the spliced pole 14, the one end of first spring 15 with button 4 is connected, the other end of first spring 15 with the outer wall of body 3 is connected. By means of the elasticity of the first spring 15, after the key 4 is repeatedly pressed, the movable block 13 can move back and forth, so that the expansion head 8 rotates back and forth, the expansion head 8 can conveniently extend into the ureter, and the ureter extension device is particularly suitable for extending into a straight channel.

Further, one end of the movable block 13 is elastically provided with a moving rod 11, and the transmission gear 10 is arranged at one end of the moving rod 11. Specifically, a second cavity 131 is arranged in the movable block 13, the movable rod 11 is movably arranged in the second cavity 131, a second spring 12 is arranged on the movable rod 11, one end of the second spring 12 is connected with the outer wall of the movable block 13, and the other end of the second spring 12 is connected with the transmission gear 10. In this embodiment, because driving tooth 10 elasticity sets up the one end at movable block 13, after driving tooth 10 unidirectional movement, rotating tube 5 drives expansion head 8 unidirectional rotation, after driving tooth antiport, because the extrusion of the inner wall of ureter for frictional force has between the inner wall of ureter and the expansion head 8, frictional force is greater than the elasticity of second spring 12, and then makes second spring 12 constantly compress, and driving tooth 10 is reverse can not make expansion head 8 rotate. Thus, after the key 4 is repeatedly pressed, the movable block 13 can move back and forth, but at the moment, the expansion head 8 rotates in a single direction, so that the expansion head 8 can conveniently extend into the ureter and is suitable for straight and curved tracts.

Furthermore, the number of the gear teeth 91 is two, the key 4 connected with one of the gear teeth 91 is arranged on one side of the body 3, and the key 4 connected with the other gear teeth 91 is arranged on the other side of the body 3. The keys 4 arranged on different sides facilitate the operation habits of different physicians.

It should be noted that the number of the connecting rods 6 is multiple, and the connecting rods 6 are uniformly arranged along the circumferential direction of the rotating pipe 5.

The connecting rod 6 is of a hollow structure, the tube body 7 is arranged in the connecting rod 6, and one end of the tube body 7 is connected with the expansion head 8 in a rotating and sealing mode.

Furthermore, the body 3 is 8-shaped, a second through hole 34 is formed in the body 3, and the second through hole 34 is convenient for a doctor to hold. Specifically, the doctor inserts one hand into the second channel 34, holds the body 3, drags the lower end of the body 3 with the other hand, and presses the button 4 with the finger to perform the operation.

According to the invention, gas or liquid can be injected into the first channel 32 through the first pipe orifice 1, the gas or liquid can enter the connecting part 81 through the pipe body 7, the gas or liquid is filled into the expansion airbag 16 through the first through hole 812 on the connecting part 81, the second rotating piece 87 is jacked up to the center far away from the connecting part 81 after the expansion airbag 16 expands in volume, the expansion rod 86 stretches and pulls the expansion rod 88 at the same time, and the expansion rod 88 and the expansion rod 86 are arranged outside the expansion airbag 16, so that the expansion volume of the expansion airbag 16 can be limited, and the expansion airbag 16 is prevented from being expanded too much. Further, compared with the conventional case where only the air bag is expanded, the expanding air bag 16 of the present invention has a better effect of driving the displacement of the second rotating member 87 after being expanded, and the corresponding efficiency of expansion of the second rotating member 87 is higher. Further, if meet the condition of foreign matter such as calculus, blood clot and necrotic tissue, part quantity's arc portion 881 can insert between ureter inner wall and the foreign matter comparatively conveniently, aerify or fill liquid back to expansion gasbag 16, the second rotates piece 87 and carries out preliminary expansion to the ureter that is close to the foreign matter position, simultaneously expansion pole 88 rotates, can make the tip of arc portion 881 remove to the center department that is close to connecting portion 81, make the tip of arc portion 881 with foreign matter centre gripping or breakage, and then clear up partial foreign matter, avoid taking out the device again with the instrument probe in addition and take out the foreign matter, it is more convenient and high-efficient to operate. Further, remove movable block 13, movable block 13 can drive driving gear 10 and remove, through being connected between driving gear 10 and the gear 9, and then make rotating tube 5 rotate, finally make the expansion head 8 of being connected with rotating tube 5 rotate, can stretch into the in-process precession of ureter at expansion head 8 like this, reduce the resistance that expansion head 8 got into, the expansion head 8 of being convenient for more stretch into. Further, because driving tooth 10 elasticity sets up the one end at movable block 13, after driving tooth 10 unidirectional movement, rotating tube 5 drives expansion head 8 unidirectional rotation, after driving tooth antiport, because the extrusion of the inner wall of ureter for frictional force has between the inner wall of ureter and the expansion head 8, frictional force is greater than the elasticity of second spring 12, and then makes second spring 12 constantly compress, and driving tooth 10 is reverse can not make expansion head 8 rotate. Thus, after the key 4 is repeatedly pressed, the movable block 13 can be made to reciprocate, but at the moment, the expansion head 8 rotates in a single direction, so that the expansion head 8 can be conveniently extended into the ureter and is suitable for straight and curved tracts.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A ureteral balloon dilatation catheter kit, comprising a body (3), a first nozzle (1) and a second nozzle (2) arranged on the body (3), a rotating tube (5) rotatably connected to one end of the body (3), a tube body (7) connected to the body (3) and an dilatation head (8) connected to the rotating tube (5), wherein a first channel (32) communicated with the first nozzle (1) is arranged in the body (3), the tube body (7) is arranged in the first channel (32), a second channel (33) communicated with the second nozzle (2) is arranged in the body (3), the dilatation head (8) comprises a connecting part (81) connected to the rotating tube (5), a first bulge (82) and a second bulge (83) arranged on the connecting part (81), a tip (84) arranged at one end of the second bulge (83), a first rotating connecting part (85), a telescopic rod (86), a second rotating connecting part (87), an expansion rod (88), and a first expansion rod (88) arranged between the first rotating bulge (82) and the first rotating connecting part (85), and the expansion rod (16), the one end of telescopic link (86) with first rotation connecting piece (85) is connected, the other end of telescopic link (86) with the second rotates connecting piece (87) and is connected, the lateral wall of the protruding (83) of second is provided with spacing portion (831), expansion lever (88) activity sets up in spacing portion (831), the one end of expansion lever (88) with the second rotates connecting piece (87) and is connected, the other end of expansion lever (88) is provided with arc portion (881), arc portion (881) is crooked to keeping away from the center department of connecting portion (81), the one end of connecting portion (81) is provided with connecting hole (811), the lateral wall of connecting portion (81) is provided with the intercommunication connecting hole (811) and expand inside first through-hole (812) of sacculus (16), be provided with first cavity (31) in body (3), first cavity (31) internalization is provided with movable block (13), the one end of movable block (13) is connected with teeth (10), the one end of rotation pipe (5) is provided with transmission gear (9), gear (9) go up with the activity of spliced pole (14), the activity of spliced pole (13) is provided with the activity piece (14), the button (4) is provided with to the one end of spliced pole (14), be provided with first spring (15) on spliced pole (14), the one end of first spring (15) with button (4) are connected, the other end of first spring (15) with the outer wall of body (3) is connected.

2. The ureteral balloon dilatation catheter kit according to claim 1 characterized in that one end of said movable block (13) is elastically provided with a moving rod (11), said transmission tooth (10) being provided at one end of said moving rod (11).

3. The ureteral balloon dilatation catheter kit according to claim 2, characterized in that a second cavity (131) is arranged inside the movable block (13), the movable rod (11) is movably arranged inside the second cavity (131), a second spring (12) is arranged on the movable rod (11), one end of the second spring (12) is connected with the outer wall of the movable block (13), and the other end of the second spring (12) is connected with the driving tooth (10).

4. The ureteral balloon dilatation catheter kit according to claim 1, characterized in that the number of said teeth (91) is two, wherein the keys (4) connected to one of said teeth (91) are arranged on one side of said body (3) and the keys (4) connected to the other set of said teeth (91) are arranged on the other side of said body (3).

5. A ureteral balloon dilatation catheter kit according to claim 1, characterized in that the rotating tube (5) is provided at one end with a connecting rod (6), the end of the connecting rod (6) distal to the rotating tube (5) being connected to the dilatation head (8).

6. A ureteral balloon dilatation catheter kit according to claim 5, characterized in that the number of said connecting rods (6) is multiple, said connecting rods (6) being evenly arranged along the circumference of said rotating tube (5).

7. A ureteral balloon dilatation catheter kit according to claim 5, characterized in that the connection rod (6) is hollow, the tube (7) is arranged inside the connection rod (6), one end of the tube (7) is connected with the dilatation head (8) in a rotating and sealing way.

8. The ureteral balloon dilatation catheter kit according to claim 1, characterized in that said body (3) is "8" shaped, said body (3) being provided with a second through hole (34).