CN215228139U

CN215228139U - Balloon syringe for removing stone

Info

Publication number: CN215228139U
Application number: CN202121268470.8U
Authority: CN
Inventors: 高秀珍; 张�诚
Original assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Current assignee: Shanghai East Hospital Tongji University Affiliated East Hospital
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-21
Anticipated expiration: 2031-06-07

Abstract

The utility model provides a get stone sacculus syringe, include: the balloon catheter comprises a syringe joint connected with a balloon catheter joint, an injection tube connected with the syringe joint and a plunger piston connected with the injection tube in a matched mode, wherein an inner core is arranged in the injection tube, a plurality of external threads distributed at intervals are arranged on the inner core, a plurality of scales are arranged on the outer wall of the injection tube, and each scale is arranged corresponding to each external thread; the inner wall of the connecting rod arranged on the plunger is provided with internal threads, when the plunger is pushed into the injection tube and pushed to each scale, the internal threads are matched and connected with the corresponding external threads, so that the injection tube and the plunger are fixedly connected, and meanwhile, the plunger is pushed to different scales to realize staged injection, and the diameter of the balloon is controlled. The utility model adopts a quantitative mode to adjust the size of the saccule, the size of the saccule can be adjusted without X-ray monitoring, and the exposure time of the patient and medical staff is reduced; after the diameter of the balloon is adjusted to the required diameter, a pressure head and a baffle are not required to be fixed by hands, and the operation is simpler.

Description

Balloon syringe for removing stone

Technical Field

The utility model relates to a medical treatment of wicresoft and surgical instruments technical field particularly, especially relate to a get stone sacculus syringe.

Background

Common bile duct stones are common diseases and frequently encountered diseases in China, bile excretion can be unsmooth due to blockage of the common bile duct stones, complications such as acute cholangitis, obstructive jaundice and liver damage can be induced, manifestations such as shivering, fever, abdominal pain and jaundice appear, serious patients even cause shock, and long-term stone stimulation has the risk of bile duct cancer, so that the common bile duct stones are important diseases harmful to human health. The existing treatment scheme of the common bile duct calculus comprises the steps of laparotomy biliary tract exploration calculus removal, laparoscopic biliary tract exploration calculus removal, Endoscopic Retrograde Cholangiopancreatography (ERCP) calculus removal, Percutaneous Transhepatic Cholangiopuncture (PTCD), fistula expansion and Percutaneous Transcholangioscopy (PTCS) calculus removal, PTCD-approach duodenal papillary balloon dilatation balloon calculus removal and the like.

The biliary tract exploration requires general anesthesia, so the operation risk is high; PTCS is a long-term disease and the overall cost of treatment is high. The ERCP stone removal has many symptoms such as few contraindications, small wound, quick recovery, few complications and the like, and the choledocholithiasis is treated by adopting a scope ERCP approach at present. The ERCP calculus extraction generally adopts two instruments of a calculus extraction sacculus and a calculus extraction basket.

When a balloon catheter for removing stones is adopted, a balloon injector is required to be matched with the balloon catheter, air is injected into the balloon through the injector to fill the balloon, and the diameter of the balloon is adjusted according to the diameter of the common bile duct and the size of stones. The sacculus syringe that uses at present is ordinary syringe, and its injection cylinder inner face is the smooth surface, and the regulation of sacculus diameter mainly relies on two kinds of modes: 1. a three-way pipe is connected between the balloon catheter and the injector, and partial gas in the balloon catheter enters the balloon injector by quickly selecting the three-way pipe so as to reduce the diameter of the balloon; 2. the balloon diameter is adjusted by manually reducing the tension between the indenter and the baffle. However, the above method has the following problems: 1. the two modes adopt qualitative modes to reduce the diameter of the saccule and lack quantitative standards; 2. in the clinical use process, the diameter of the balloon is adjusted slowly by adopting a three-way pipe mode, and a three-way joint knob needs to be rotated repeatedly; the tension between the pressure head and the baffle is manually adjusted, so that the saccule is easy to be not reduced or suddenly reduced, and the diameter of the saccule for removing the stone can not be reached; 3. adjustment of the balloon diameter needs to be done under fluoroscopy, increasing the exposure time of the patient and the medical staff to radiation, inflammation affecting their health.

SUMMERY OF THE UTILITY MODEL

In accordance with the above-mentioned technical problem, a balloon syringe for removing stones is provided. The utility model discloses mainly the external screw-thread fit on the inner core that the internal thread of connecting rod and different scales correspond is connected, when making injection tube and plunger fixed connection, realizes injecting stage by stage through pushing away the plunger to different scales to take quantitative mode to control the diameter of sacculus.

The utility model discloses a technical means as follows:

a stone removal balloon syringe comprising: the balloon catheter comprises a syringe joint connected with a balloon catheter joint, an injection tube connected with the syringe joint and a plunger piston connected with the injection tube in a matched mode, wherein an inner core is arranged in the injection tube, a plurality of external threads distributed at intervals are arranged on the inner core, a plurality of scales are arranged on the outer wall of the injection tube, and each scale is arranged corresponding to each external thread; the inner wall of the connecting rod arranged on the plunger is provided with internal threads, when the plunger is pushed into the injection tube and pushed to each scale, the internal threads are matched and connected with the corresponding external threads, so that the injection tube and the plunger are fixedly connected, and meanwhile, the plunger is pushed to different scales to realize staged injection, and the diameter of the balloon is controlled.

Furthermore, the inner core consists of a pipe section I and a pipe section II, wherein the pipe section I is a solid pipe, and the pipe section II is a hollow pipe and is communicated with the balloon; one end of the pipe section II, which is close to the pipe section I, is provided with a side hole II, and the outer wall of the pipe section I is provided with a plurality of external threads which are distributed at intervals.

Furthermore, the injection tube is also provided with a cylinder body, and the inner core is arranged in the cylinder body; the outer surface of the cylinder body is provided with mark lines for marking different scales, one end of the cylinder body is a blind end, the inside of the other end of the cylinder body is connected with the plunger, and the outer wall of the cylinder body is provided with a baffle; a side hole I is formed in the outer wall of the barrel body and is close to the baffle;

and the side hole II is positioned in the barrel body and is close to the blind end, and the barrel body is communicated with the pipe section II through the side hole II.

Further, the syringe joint comprises a tubular joint and a connecting cap, the tubular joint is arranged in the connecting cap and inserted into the tube cavity of the balloon catheter joint, the interior of the tubular joint is hollow, one end of the tubular joint is communicated with the tube section II, and the other end of the tubular joint is communicated with the interior of the balloon; the outer wall of the connecting cap is provided with longitudinal protrusions, the inner wall of the connecting cap is provided with spiral protrusions, and the connecting cap is screwed on the spiral protrusions on the surface of the balloon catheter joint through the spiral protrusions on the inner wall.

Furthermore, the plunger is also provided with a piston and a circular pressure head, the piston and the circular pressure head are respectively arranged at two ends of the connecting rod, the outer wall of the piston is in contact connection with the inner wall of the cylinder body, and the circular pressure head is in contact connection with the baffle; the inner wall of one end of the connecting rod, which is close to the piston, is provided with an internal thread.

Furthermore, the middle of the connecting rod is a single-channel pipe, the inside of the connecting rod is hollow, and the connecting rod is inserted into the pipe section II; the outer wall of the connecting rod is provided with a cross lateral wing.

Furthermore, the piston is annular and is made of rubber, silica gel or polyethylene.

Furthermore, the mark lines are arranged at three positions, the scale sizes are 1.5cm, 1cm and 0.5cm in sequence, and the diameters of the corresponding inflated balloons are 3cm, 2cm and 1.5cm in sequence.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a get stone sacculus syringe takes the size of quantitative mode adjustment sacculus.

2. The utility model provides a get stone sacculus syringe need not to adjust the sacculus size under the X line is kept watch on, has reduced the exposure time of patient and medical personnel ray.

3. The utility model provides a get stone sacculus syringe need not to use fixed pressure head of hand and baffle after adjusting to required sacculus diameter, and its operation is more simple.

Based on the reason, the utility model discloses can extensively promote in fields such as medical treatment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural view of the injector joint and the injection tube of the present invention.

Fig. 3 is a schematic structural diagram of the middle plunger of the present invention.

Fig. 4 is a schematic structural view of the marking line of the plunger pushed to the first expanded diameter position according to the present invention.

Fig. 5 is a schematic structural view of the mark line when the plunger of the present invention is pushed to the second expanded diameter position.

Fig. 6 is a schematic cross-sectional view of the middle connecting rod of the present invention.

Fig. 7 is a schematic cross-sectional view of the long axis of the middle connecting rod of the present invention.

Fig. 8 is a schematic long-axis cross-sectional view of the present invention.

In the figure: 1. a syringe adapter; 2. an injection tube; 21. marking a line; 22. a side hole I; 23. an inner core; 231. a pipe section I; 232. a pipe section II; 24. an external thread; 25. a side hole II; 3. a plunger; 31. a piston; 32. a connecting rod; 33. a cross-shaped side wing; 34. a circular ram; 35. an internal thread; 4. and a baffle plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the figures, the utility model provides a get stone sacculus syringe, include: the balloon catheter comprises a syringe connector 1 connected with a balloon catheter connector, a syringe 2 connected with the syringe connector 1 and a plunger 3 connected with the syringe 2 in a matched mode, wherein an inner core 23 is arranged in the syringe 2, a plurality of external threads 24 distributed at intervals are arranged on the inner core 23, a plurality of scales are arranged on the outer wall of the syringe 2, and each scale is arranged corresponding to each external thread 24; the inner wall of the connecting rod 32 arranged on the plunger 3 is provided with an internal thread 35, when the plunger 3 is pushed into the injection tube 2 and is pushed to each scale, the internal thread 35 is matched and connected with the corresponding external thread 24, so that the injection tube 2 and the plunger 3 are fixedly connected, and meanwhile, the plunger 3 is pushed to different scales to realize staged injection, and the diameter of the saccule is controlled.

In a preferred embodiment, the inner core 23 is composed of a pipe section i 231 and a pipe section ii 232, wherein the pipe section i 231 is a solid pipe, and the pipe section ii 232 is a hollow pipe and is communicated with the balloon; a side hole II 25 is formed in one end, close to the pipe section I231, of the pipe section II 232, and a plurality of external threads 24 distributed at intervals are formed in the outer wall of the pipe section I231.

In a preferred embodiment, the syringe 2 is further provided with a cylinder body, and the inner core 23 is arranged in the cylinder body; the outer surface of the cylinder body is provided with mark lines 21 for marking different scales, one end of the cylinder body is a blind end, the inside of the other end of the cylinder body is connected with the plunger 3, and the outer wall of the cylinder body is provided with a baffle 4; a side hole I22 is formed in the outer wall of the barrel body and is close to the baffle 4;

the side hole II 25 is positioned in the barrel body and close to the blind end, and the barrel body is communicated with the pipe section II 232 through the side hole II 25.

As a preferred embodiment, the syringe joint 1 comprises a tubular joint and a connecting cap, the tubular joint is arranged in the connecting cap and is inserted into the tube cavity of the balloon catheter joint, the interior of the tubular joint is hollow, one end of the tubular joint is communicated with the tube section II 232, and the other end of the tubular joint is communicated with the interior of the balloon; the outer wall of the connecting cap is provided with longitudinal protrusions, the inner wall of the connecting cap is provided with spiral protrusions, and the connecting cap is screwed on the spiral protrusions on the surface of the balloon catheter joint through the spiral protrusions on the inner wall.

In a preferred embodiment, the plunger 3 is further provided with a piston 31 and a circular pressure head 34, the piston 31 and the circular pressure head 34 are respectively arranged at two ends of the connecting rod 32, the outer wall of the piston 31 is in contact connection with the inner wall of the cylinder, and the circular pressure head 34 is in contact connection with the baffle 4; the connecting rod 32 has an inner thread 35 on its end adjacent to the piston 31.

In a preferred embodiment, the middle of the connecting rod 32 is a single-channel tube, the inside of the connecting rod is hollow, and the connecting rod is inserted into the tube section II 232; the outer wall of the connecting rod 32 is provided with a cross-shaped lateral wing 33.

In a preferred embodiment, the piston 31 is annular and is made of rubber, silicone or polyethylene.

Example 1

As shown in fig. 1-8, a balloon syringe for removing stones comprises a syringe connector 1 connected with a balloon catheter connector, a syringe barrel 2 connected with the syringe connector 1, and a plunger 3 matched and connected with the syringe barrel 2. The syringe adapter 1 comprises a tubular adapter and a connecting cap. The syringe 2 comprises a barrel and a plunger 23. The plunger 3 includes a piston 31, a connecting rod 32, and a circular ram 34.

The inner core 23 is arranged in the barrel; the outer surface of the cylinder body is provided with mark lines 21 (respectively corresponding to three expansion diameters of the saccule) for marking three scales, one end of the cylinder body is a blind end, the inside of the other end of the cylinder body is connected with the plunger 3, and the outer wall of the cylinder body is provided with a baffle 4; a side hole I22 is arranged on the outer wall of the cylinder body and close to the baffle 4. Specifically, the scale sizes on the three marking lines 21 are 1.5cm, 1cm and 0.5cm in sequence, each scale is arranged corresponding to each external thread 24, and the diameters of the corresponding inflated balloons are 3cm, 2cm and 1.5cm in sequence. It should be noted that the number of the external threads on the inner core can be set according to the actual use requirement, and is not limited to three, and the corresponding marking lines 21 are not limited to three. The inner core 23 consists of a pipe section I231 and a pipe section II 232, wherein the pipe section I231 is a solid pipe, and the pipe section II 232 is a hollow pipe and is communicated with the balloon; one end of the pipe section II 232 close to the pipe section I231 is provided with a side hole II 25, the side hole II 25 is located inside the barrel body and close to the blind end, and the barrel body is communicated with the pipe section II 232 through the side hole II 25. The outer wall of the pipe section I231 is provided with three external threads 24 which are distributed at intervals.

The tubular joint is arranged in the connecting cap and inserted into the tube cavity of the balloon catheter joint, the interior of the tubular joint is hollow, one end of the tubular joint is communicated with the tube section II 232, and the other end of the tubular joint is communicated with the interior of the balloon; the outer wall of the connecting cap is provided with longitudinal protrusions, the inner wall of the connecting cap is provided with spiral protrusions, and the connecting cap is screwed on the spiral protrusions on the surface of the balloon catheter joint through the spiral protrusions on the inner wall.

The piston 31 and the circular pressure head 34 are respectively arranged at two ends of the connecting rod 32, the outer wall of the piston 31 is in contact connection with the inner wall of the cylinder, and the circular pressure head 34 is in contact connection with the baffle 4. The connecting rod 32 has an inner thread 35 on its end adjacent to the piston 31. The middle of the connecting rod 32 is a single-channel pipe, the interior of the connecting rod is hollow, and the connecting rod is inserted into the pipe section II 232; the outer wall of the connecting rod 32 is provided with a cross-shaped lateral wing 33. The piston 31 is ring-shaped and made of silica gel.

When the plunger 3 is pushed into the injection cylinder 2 and pushed to each scale, the internal thread 35 is matched and connected with the corresponding external thread 24, so that the injection cylinder 2 and the plunger 3 are fixedly connected, and meanwhile, the plunger 3 is pushed to different scales to realize staged injection, and the diameter of the filled balloon is controlled.

The utility model discloses an use: the side opening I of the nearly baffle of fixed injection tube and pull-back connecting rod to injection tube exposes, connects the injector connector on getting stone sacculus pipe connector, and fixed injection tube pushes down circular pressure head, and when the piston passes through side opening I of injection tube, through the air in the extrusion injection tube, and then makes the sacculus crescent. When the internal thread of the connecting rod is close to the external thread on one side of the inner core, the piston stops advancing, the internal thread of the connecting rod is gradually matched with the external thread on the inner core through threaded connection by rotating the connecting rod instantaneously, and at the moment, the injection cylinder and the connecting rod can be fixed to form a balloon with a fixed diameter; continue rotatory connecting rod, when the internal thread of connecting rod passes through current external screw thread on the inner core, the resistance reduces, can continue to press circular pressure head this moment, and the sacculus continues to increase to the connecting rod internal thread and meets with an upper and lower external screw thread of inner core, repeats this operation until passing through the third external screw thread of inner core. When the piston reaches the bottom of the syringe, a maximum diameter balloon is created. At the moment, the connecting rod can be gradually retracted, the saccule is gradually reduced, and three saccules with fixed diameters can be formed due to the blocking of the threads and are used for removing the stones of bile ducts with different diameters and stones with different stones.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A balloon syringe for removing stones, comprising: the balloon catheter comprises an injector connector (1) connected with a balloon catheter connector, an injection tube (2) connected with the injector connector (1), and a plunger (3) connected with the injection tube (2) in a matched manner, wherein an inner core (23) is arranged in the injection tube (2), a plurality of external threads (24) distributed at intervals are arranged on the inner core (23), a plurality of scales are arranged on the outer wall of the injection tube (2), and each scale is arranged corresponding to each external thread (24); the inner wall of a connecting rod (32) arranged on the plunger (3) is provided with an internal thread (35), when the plunger (3) is pushed into the injection tube (2) and is pushed to each scale, the internal thread (35) is matched and connected with the corresponding external thread (24), so that the injection tube (2) and the plunger (3) are fixedly connected, and meanwhile, the plunger (3) is pushed to different scales to realize staged injection, and the diameter of the balloon is controlled.

2. The balloon syringe for removing stones according to claim 1, wherein the inner core (23) is composed of a tube section I (231) and a tube section II (232), the tube section I (231) is a solid tube, and the tube section II (232) is a hollow tube and is communicated with the balloon; a side hole II (25) is formed in one end, close to the pipe section I (231), of the pipe section II (232), and a plurality of external threads (24) distributed at intervals are arranged on the outer wall of the pipe section I (231).

3. The balloon syringe for removing stones according to claim 2, characterized in that the syringe barrel (2) is further provided with a barrel body, and an inner core (23) is arranged in the barrel body; the outer surface of the cylinder body is provided with mark lines (21) for marking different scales, one end of the cylinder body is a blind end, the inside of the other end of the cylinder body is connected with the plunger (3), and the outer wall of the cylinder body is provided with a baffle (4); a side hole I (22) is arranged on the outer wall of the cylinder body and close to the baffle (4);

the side hole II (25) is positioned in the barrel body and close to the blind end, and the barrel body is communicated with the pipe section II (232) through the side hole II (25).

4. The balloon syringe for removing stones according to claim 2, wherein the syringe joint (1) comprises a tubular joint and a connecting cap, the tubular joint is arranged in the connecting cap and inserted into the tube cavity of the balloon catheter joint, the interior of the tubular joint is hollow, one end of the tubular joint is communicated with the tube section II (232), and the other end of the tubular joint is communicated with the interior of the balloon; the outer wall of the connecting cap is provided with longitudinal protrusions, the inner wall of the connecting cap is provided with spiral protrusions, and the connecting cap is screwed on the spiral protrusions on the surface of the balloon catheter joint through the spiral protrusions on the inner wall.

5. The balloon syringe for removing stones according to claim 3, wherein the plunger (3) is further provided with a piston (31) and a circular pressure head (34), the piston (31) and the circular pressure head (34) are respectively arranged at two ends of the connecting rod (32), the outer wall of the piston (31) is in contact connection with the inner wall of the barrel, and the circular pressure head (34) is in contact connection with the baffle (4); an inner thread (35) is arranged on the inner wall of one end of the connecting rod (32) close to the piston (31).

6. The balloon syringe for removing stones according to claim 5, characterized in that the middle of the connecting rod (32) is a single-channel tube, the inside of the connecting rod is hollow, and the connecting rod is inserted into a tube section II (232); the outer wall of the connecting rod (32) is provided with a cross side wing (33).

7. The balloon syringe for removing stones according to claim 5, characterized in that the piston (31) is ring-shaped and made of rubber, silica gel or polyethylene.

8. The balloon syringe for removing stones according to claim 3, characterised in that the marking line (21) is provided with three places with scale sizes of 1.5cm, 1cm and 0.5cm in sequence, the corresponding inflated balloons having diameters of 3cm, 2cm and 1.5cm in sequence.