CN211561517U - Hepatobiliary pancreas surgery pipe fixing device - Google Patents

Abstract

The utility model discloses a hepatobiliary pancreas surgery catheter fixing device, including the set casing that has the gas storage chamber inside, one side of set casing is provided with the groove of stepping down that can supply the pipe to pass, set up the extrusion mechanism that can extrude the pipe in the groove of stepping down, the number of extrusion mechanism is two and in the both sides that are located the pipe respectively, one side of set casing is provided with the air inlet that is linked together with the gas storage chamber, be provided with the internal thread on the inner wall of air inlet, one side intercommunication of pipe has the branch tubule, the one end that the branch tubule kept away from the pipe is provided with the joint that has the external screw thread, the internal thread screw-thread fit at joint and air inlet, two extrusion mechanisms all are linked together with gas; when the air pressure in the conduit increases, the two pressing mechanisms move in the direction of approaching each other to press the conduit. The utility model discloses following beneficial effect has: the fixing device can prevent the air bag from releasing pressure prematurely, thereby ensuring the treatment effect of the balloon dilatation catheter on patients.

Description

Hepatobiliary pancreas surgery pipe fixing device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to hepatobiliary pancreas surgery pipe fixing device.

Background

At present, the known clinical balloon dilatation catheter is mainly used for recovering the dilatation of narrow lumen parts of human bodies, such as blood vessels, ureters, biliary tracts, trachea, fallopian tubes, esophagus and the like, and is also used for treating bile duct stones. The principle of the method is that an expansion saccule is placed into the biliary tract by an operation method, and the narrow bile duct is subjected to intermittent and progressive expansion within a period of time after the operation, so that the effect of expanding the biliary tract is achieved, and the biliary tract is not necrotized due to long-time compression.

The sacculus expansion pipe is in the use, need dock interface and syringe, put into the patient with the sacculus internal, inject gas through the syringe, thereby make the gasbag inflation through the pipe, thereby accomplish the expansion treatment to patient's biliary tract, however after the injection finishes, the gasbag that needs already inflation keeps a period of time, if medical personnel loosens the syringe this moment, because the atmospheric pressure in the gasbag produces the backward flow, can be through pipe backward extrusion syringe, then can lead to the gasbag pressure release too early, the treatment to the patient has been reduced, therefore remain to improve.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a hepatobiliary pancreas surgery pipe fixing device, this kind of fixing device can prevent the too early pressure release of gasbag, and then guarantees sacculus expansion pipe to patient's treatment.

The above technical purpose of the present invention can be achieved by the following technical solutions: a hepatobiliary pancreas surgery catheter fixing device comprises a fixing shell with a gas storage cavity inside, wherein one side of the fixing shell is provided with a stepping groove through which a catheter can pass, an extrusion mechanism capable of extruding the catheter is arranged in the stepping groove, the number of the extrusion mechanisms is two and is respectively positioned at two sides of the catheter, one side of the fixing shell is provided with a gas inlet communicated with the gas storage cavity, the inner wall of the gas inlet is provided with an internal thread, one side of the catheter is communicated with a branch tubule, one end, away from the catheter, of the branch tubule is provided with a connector with an external thread, the connector is in threaded fit with the internal thread at the gas inlet, and the two extrusion mechanisms are both communicated with the gas storage cavity and the catheter; when the air pressure in the conduit is increased, the two squeezing mechanisms move towards the direction close to each other to squeeze the conduit.

The utility model discloses further set up to: every the extrusion mechanism all includes the stripper plate, be provided with a plurality of spring between stripper plate and the groove inner wall of stepping down, one side that the stripper plate was equipped with the dead lever towards the groove inner wall of stepping down, the one end that the stripper plate was kept away from to the dead lever is provided with the slider, set up the slide that can supply the slider to slide on the inner wall of the groove of stepping down, all with slide inner wall looks butt around the slider, the slide is kept away from and is provided with the air duct between the one end of slider and the gas storage appearance chamber.

The utility model discloses further set up to: the conduit is made of rubber.

The utility model discloses further set up to: the catheter is characterized in that a balloon is arranged at one end of the catheter, a plurality of air holes are formed in the side wall of the catheter, the positions of the air holes are located in the balloon and communicated with the inner cavity of the balloon, and the other end of the catheter is connected with a piston rod pushing device.

To sum up, the utility model discloses following beneficial effect has: because the balloon, the catheter, the gas storage cavity in the fixed shell and the slide way are all under the same air pressure, the air pressure of the gas storage cavity can be consistent with that of the balloon in the process of inflating the catheter to expand the balloon. When atmospheric pressure in the sacculus increases gradually, because the gas storage holds the chamber and is linked together through the air duct with the slide, and all around all with slide inner wall looks butt of slider, and then can promote the slide, the promotion of slide can make the stripper plate remove towards the pipe direction to make the pipe extruded, in order to avoid the atmospheric pressure in the sacculus to produce the backward flow, avoid the too early pressure release of sacculus, guarantee the treatment to the patient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the catheter fixing device and the dilating catheter of the present invention in a matching state;

fig. 2 is a schematic structural view of the catheter fixing device of the present invention;

fig. 3 is a sectional view of the structure of fig. 2.

Reference numerals: 1. a gas storage cavity; 2. a stationary case; 3. a conduit; 4. a yielding groove; 5. an extrusion mechanism; 6. an air inlet; 7. an internal thread; 8. a branched thin tube; 9. a joint; 10. a pressing plate; 11. a spring; 12. fixing the rod; 13. a slider; 14. a slideway; 15. an air duct; 16. a balloon; 17. air holes are formed; 18. and a piston rod pushing device.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1-3, a hepatobiliary pancreas surgery catheter fixing device comprises a fixing shell 2 having a gas storage cavity 1 therein, wherein one side of the fixing shell 2 is provided with a abdication groove 4 for the catheter 3 to pass through, an extrusion mechanism 5 capable of extruding the catheter 3 is arranged in the abdication groove 4, the number of the extrusion mechanisms 5 is two, the two extrusion mechanisms are respectively arranged at two sides of the catheter 3, one side of the fixing shell 2 is provided with a gas inlet 6 communicated with the gas storage cavity 1, and the inner wall of the gas inlet 6 is provided with an internal thread 7. One side intercommunication of pipe 3 has branch tubule 8, and the one end that pipe 3 was kept away from to branch tubule 8 is provided with the joint 9 that has the external screw thread, and this joint 9 and the 7 screw-thread cooperations of internal thread of air inlet 6 department, two extrusion mechanisms 5 all hold chamber 1, pipe 3 with the gas storage and are linked together. When the air pressure in the pipe 3 increases, the two pressing mechanisms 5 move in the direction of approaching each other to press the pipe 3.

Furthermore, each extrusion mechanism 5 comprises an extrusion plate 10, a plurality of springs 11 are arranged between the extrusion plate 10 and the inner wall of the abdicating groove 4, a fixing rod 12 is arranged on one side, facing the inner wall of the abdicating groove 4, of the extrusion plate 10, a sliding block 13 is arranged at one end, far away from the extrusion plate 10, of the fixing rod 12, a sliding way 14 for the sliding block 13 to slide is arranged on the inner wall of the abdicating groove 4, and the periphery of the sliding block 13 is abutted to the inner wall of the sliding way 14. An air duct 15 is arranged between one end of the slide way 14 far away from the slide block 13 and the air storage cavity 1.

In practical use, one end of the conduit 3 passes through the abdicating groove 4, and the joint 9 at one end of the branch tubule 8 communicated with the conduit 3 is in threaded connection with the air inlet 6 on the fixed shell 2. So that the conduit 3, the branch tubule 8, the gas storage cavity 1 in the fixed shell 2 and the slide way 14 are all under the same air pressure. When external gas is introduced into catheter 3, the gas within catheter 3 may inflate balloon 16 at one end of balloon 16.

Because the balloon 16, the catheter 3, the gas storage cavity 1 in the fixed shell 2 and the slide way 14 are all under the same air pressure, the air pressure of the gas storage cavity 1 is consistent with that of the balloon 16 in the process of inflating the catheter 3 to expand the balloon 16. When the air pressure in the sacculus 16 increases gradually, because the gas storage containing cavity 1 is communicated with the slide way 14 through the air duct 15, and the periphery of the slide block 13 is abutted against the inner wall of the slide way 14, the slide plate can be pushed, the push of the slide plate can lead the extrusion plate 10 to move towards the direction of the catheter 3, so that the catheter 3 is extruded, the air pressure in the sacculus 16 is prevented from generating backflow, the too early pressure relief of the sacculus 16 is avoided, and the treatment effect of a patient is ensured. In the above process, the spring 11 is in a stretched state. And the catheter 3 is clamped.

When the balloon 16 expands the catheter 3 to expand the biliary tract, the joint 9 at one end of the branch tubule 8 is screwed out from the air inlet 6 of the fixed shell 2, so that the pressure relief of the gas storage cavity 1 in the catheter 3 and the fixed shell 2 is realized. Meanwhile, the pressing plate 10 is driven by the spring 11 to move towards the direction away from the conduit 3, so that the conduit 3 recovers the initial form without external force, and the conduit 3 can be separated from the fixed shell 2.

Further, the conduit 3 is made of rubber.

Further, as shown in fig. 1, a balloon 16 is disposed at one end of the catheter 3, a plurality of air holes 17 are disposed on a side wall of the catheter 3, each air hole 17 is located in the balloon 16 and is communicated with an inner cavity of the balloon 16, and a piston rod pushing device 18 is connected to the other end of the catheter 3.

When the dilating catheter 3 is used for biliary dilation, the distal end of the catheter 3 (i.e., the part which enters the opening of the biliary tract of the human body first) is sent into the biliary tract, so that the balloon 16 moves in the biliary tract. The position of the biliary tract where the air sac is located can be displayed through X-ray. After the catheter 3 is sent to a position where biliary tract expansion is needed, gas is introduced into the balloon 16 through the catheter 3 by the piston rod pushing device 18, so that the balloon 16 is expanded, and the purpose of expansion is achieved. As the air pressure of the balloon 16 is inevitably increased in the process of expanding, the air pressure in the air storage cavity 1 and the communicated slide way 14 is increased, and finally the extrusion plate 10 is driven to complete the extrusion effect of the extrusion plate 10 on the catheter 3.

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 substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (4)

1. A hepatobiliary pancreas surgery catheter securement device, characterized by: including inside set casing (2) that have the gas storage and hold chamber (1), one side of set casing (2) is provided with the groove of stepping down (4) that can supply pipe (3) to pass, set up in the groove of stepping down (4) and carry out extruded extrusion mechanism (5) to pipe (3), the number of extrusion mechanism (5) is two and in the both sides that are located pipe (3) respectively, one side of set casing (2) is provided with air inlet (6) that are linked together with gas storage chamber (1), be provided with internal thread (7) on the inner wall of air inlet (6), one side intercommunication of pipe (3) has branch tubule (8), the one end that pipe (3) were kept away from in branch tubule (8) is provided with joint (9) that have the external screw thread, connect (9) and internal thread (7) screw-thread fit of air inlet (6) department, two extrusion mechanism (5) all hold chamber (1) with the gas storage, The guide pipes (3) are communicated; when the air pressure in the conduit (3) is increased, the two squeezing mechanisms (5) move towards the direction of approaching each other to squeeze the conduit (3).

2. The hepatobiliary-pancreatic surgical catheter fixation device of claim 1, wherein: every extrusion mechanism (5) all include stripper plate (10), be provided with a plurality of spring (11) between stripper plate (10) and the groove of stepping down (4) inner wall, stripper plate (10) are provided with dead lever (12) towards the one side of the groove of stepping down (4) inner wall, the one end that stripper plate (10) were kept away from in dead lever (12) is provided with slider (13), set up slide (14) that can supply slider (13) to slide on the inner wall of the groove of stepping down (4), all with slide (14) inner wall looks butt around slider (13), be provided with air duct (15) between the one end that slider (13) were kept away from in slide (14) and gas storage appearance chamber (1).

3. The hepatobiliary-pancreatic surgical catheter fixation device of claim 2, wherein: the guide pipe (3) is made of rubber materials.

4. The hepatobiliary-pancreatic surgical catheter fixation device of claim 3, wherein: the catheter is characterized in that a balloon (16) is arranged at one end of the catheter (3), a plurality of air holes (17) are formed in the side wall of the catheter (3), each air hole (17) is located in the balloon (16) and communicated with the inner cavity of the balloon (16), and a piston rod pushing device (18) is connected to the other end of the catheter (3).

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